WO2020109323A1

WO2020109323A1 - Measuring device for measuring electrical variables

Info

Publication number: WO2020109323A1
Application number: PCT/EP2019/082617
Authority: WO
Inventors: Günter Fischer; Stefan Burger; Heinrich Michael Pekar
Original assignee: GMC-I Messtechnik GmbH
Priority date: 2018-11-30
Filing date: 2019-11-26
Publication date: 2020-06-04
Also published as: DE102018130559A1; DE102018130559B4; EP3887834A1

Abstract

Measuring device (1) for measuring electrical variables, comprising a housing body (2) comprising a housing space, at least one measuring device which is arranged or formed in the housing space and is intended to measure an electrical variable which can be measured by means of the measuring device (1), wherein the housing body (2) has at least one accommodation region (4) for releasably accommodating at least one electrical energy supply module (3) for supplying electrical energy to the measuring device (1) using energy which can be provided or is provided by an external inductive energy source and/or energy which can be provided or is provided by an external electrical energy source, in particular an external power supply network, wherein the accommodation region (4) is in the form of a shaft-like or shaft-shaped recess (5) in the housing body (2).

Description

MEASURING DEVICE FOR MEASURING ELECTRICAL SIZES

The invention relates to a measuring device for measuring electrical quantities, in particular electrical voltages and / or electrical currents, comprising a housing body comprising a housing space and at least one measuring device arranged or formed in the housing space for measuring an electrical quantity that can be measured or measured by means of the measuring device.

Such measuring devices for measuring electrical quantities, in particular electrical voltages and / or electrical currents, are from the prior art in different designs, for. B. in the form of multimeters, known. Corresponding measuring devices can be designed as stationary or as mobile or portable devices.

In particular for the variant of a measuring device designed as a mobile or portable terminal device, it is known that the electrical energy required for the operation of the measuring device or corresponding measuring device-side measuring devices arranged or formed in the housing space of a measuring device-side housing body via an electrical energy store, i.e. H. typically via an electrical accumulator, or battery for short. For this purpose, the electrical energy store serving the electrical energy supply of the measuring device is to be connected in a suitable manner to the housing body of the measuring device.

Known approaches to realizing a corresponding energy supply of corresponding measuring devices are sometimes in need of improvement in terms of function as well as construction and on the other hand with regard to charging the respective electrical energy storage devices serving for energy supply, so that there is a need for an improved measuring device for measuring electrical quantities.

The invention is therefore based on the object of specifying an improved measuring device for measuring electrical quantities, which is of improved design, in particular on the one hand from a functional and structural point of view and on the other hand with regard to the charging of the respective electrical energy storage devices serving to supply energy.

The object is achieved by a measuring device for measuring electrical quantities according to claim 1. The dependent claims relate to possible embodiments of the measuring device. The measuring device described here (“measuring device”) is generally used to measure electrical quantities or measurement quantities, ie in particular electrical currents and / or electrical voltages. The measuring device is typically designed as a mobile or portable terminal. The measuring device can, for example, be a multimeter, which is also regularly referred to as a multimeter.

The measuring device comprises a housing body defined in its spatial-physical shape by walls or wall sections. The housing body typically has a cuboid-like or -shaped geometric basic shape. The housing body can be made in one or more parts; In a multi-part embodiment, the housing body comprises a plurality of housing body segments, which can be or are connected to one another to form the housing body.

Regardless of the one-part or multi-part design, the housing body defines or comprises a housing (interior) space; this is typically an inner housing body volume delimited by corresponding walls or wall sections of the housing body. The housing (interior) space functions functionally, at least in sections, as a receiving space for receiving various electrical or electronic components or assemblies of the measuring device. As an example of a corresponding electrical or electronic component or group of components, at least one measuring device for measuring an electrical variable that can be measured or measured by means of the measuring device, ie. H. arranged or designed, in particular, for the recording and processing of a measurement signal which can be measured or measured by means of the measuring device. The measuring device can e.g. B. be designed as hardware and / or software implemented measuring electronics or include such.

The measuring device is connected to the electrical power supply of the measuring device, i. H. respective measuring device-side electrical components or consumers, such as. B. the measuring device, electrical power supply module (hereinafter referred to as energy supply module) supplied with electrical energy. The energy supply module can be set up for the electrical energy supply of the measuring device with energy that can be provided or provided by an external inductive energy source and / or for the electrical supply of the measuring device with electrical energy that can be provided or provided by an external electrical energy source, in particular an external energy supply network.

The components or consumers of the measuring device to be supplied for the operation of the measuring device or electrically supplied, ie in particular the space in the housing (interior) of the measuring device Measuring device-side housing body arranged or formed measuring device, the required electrical energy is then provided via at least one corresponding energy supply module. The measuring device thus typically comprises at least one energy supply module which is set up to supply electrical energy to the measuring device with energy that can be provided or provided by an external inductive energy source and / or with electrical energy that can be provided or provided by an external electrical energy source, in particular an external energy supply network.

If the at least one energy supply module for the electrical energy supply of the measuring device is set up with energy that can be provided or provided by an inductive energy source, the at least one energy supply module can have at least one electrical energy store that can be inductively charged with or can be provided by an external inductive energy supply source, such as, for. B. include an accumulator, battery for short. Charging processes of the at least one electrical energy store can take place here without a charging cable and thus without wires or cables.

In this variant, a corresponding energy supply module typically comprises at least one inductive element assigned to the at least one inductively chargeable electrical energy store, ie. H. typically an inductive coil (receiver or secondary coil), which is (s) set up to charge the inductively rechargeable electrical energy store via inductive interaction with at least one further inductive element, i. H. typically to supply another inductive coil (transmitter or primary coil), an external inductive energy source with electrical energy. The at least one inductive element is therefore set up to generate electrical energy via inductive interaction with at least one further inductive element and to supply the at least one electrical energy store with electrical energy in this way. The further inductive element is typically not part of the at least one energy supply module, but part of an external inductive energy source, i. H. e.g. B. a separate charging device for charging the at least one electrical energy store of the at least one energy supply module. An inductive element on the power supply module side can be referred to as the "first inductive element", and a further inductive element on the charger side can be referred to as the "second inductive element".

The inductive interaction between the respective first and second inductive elements results in a wireless or wireless inductive energy transmission between them. Here, in the further or second inductive element serving as the transmitter or primary coil, a magnetic field, in particular an alternating magnetic field, generated, whereby an electrical voltage, in particular an electrical alternating voltage, is induced in the first inductive element serving as the receiving or secondary coil.

Since there is typically an electrically conductive connection between the at least one first inductive element and the at least one electrical energy store assigned to it, the electrical energy generated in the at least one first inductive element upon inductive interaction with the at least one second inductive element of the at least one electrical energy store are supplied to the at least one electrical energy store for a charging process.

The at least one first inductive element is typically arranged or formed on or in a housing body of the at least one energy supply module. The at least one first inductive element is therefore typically integrated into a housing body of the at least one energy supply module. In this way, in the form of the at least one energy supply module, there is a highly integrated module for supplying energy to the measuring device.

If the at least one energy supply module is set up to supply electrical energy to the measuring device with electrical energy that can be provided or provided by an external electrical energy source, in particular an electrical energy supply network, the at least one energy supply module can be at least one that can be provided by an external electrical energy source, in particular an electrical energy supply network or provided electrical energy rechargeable electrical energy storage. Charging processes of the at least one electrical energy store can take place here with a charging cable and thus with a wire or cable. The operation of the measuring device can also take place in a wired or cable-connected manner in the state of the at least one energy supply module connected to an external electrical energy source via a corresponding charging cable, which basically makes the operation of the measuring device independent of the state of charge of the at least one energy store. This is particularly useful for long-term operation of the measuring device, ie in particular for long-term measurements. It is also conceivable to use the at least one energy supply module to implement a pure network operation of the measuring device and thus an “energy supply bypass”, which enables operation of the measuring device completely independently of the at least one electrical energy store and thus operation of the measuring device. B. also ensures in the event of a defect in the at least one electrical energy store. This is also particularly useful for long-term operation of the measuring device, ie in particular for long-term measurements. In order to connect the at least one energy supply module to an external electrical energy source, at least one first electrical connection element, which forms part of a first electrical connection device of the energy supply module on the energy supply module side, can be connected to the at least one energy supply module, ie in particular to a housing body of the energy supply module, for connecting an external one electrical energy source connectable or connected charging or supply cable to the power supply module. A corresponding first connection element can, for. B. be designed as a plug receptacle for a plug section of a charging or supply cable or include such.

The at least one first electrical connection element can, for. B. in the area of a exposed in the receiving area of the housing body of the measuring device of the at least one power supply module exposed area of a housing body of the at least one power supply module. The at least one first electrical connection element is thus easily accessible, which has a positive effect on the handling of the measuring device.

Specifically, the at least one first electrical connection element can be in the state of the at least one power supply module, for example, in the receiving region of the housing body of the measuring device. B. in the region of an end face of the housing body of the at least one energy supply module and thus also in the region of one, as will also become apparent, also in the state of the at least one accommodated in the housing body-side receiving region

Power supply module typically exposed or arranged end face of the housing body of the measuring device.

The at least one first connection element can thus be arranged or formed in the region of one side of a housing body on the energy supply module side, which is accessible in the state of the energy supply module received in the housing region on the housing body side of the housing body of the measuring device. The power supply module does not have to be removed from the receiving area in order to be connected or charged with a charging cable.

At this point it should be mentioned again generally that a corresponding energy supply module both for the electrical energy supply of the measuring device with energy that can be provided or provided by an external inductive energy source and / or from an external electrical energy source, in particular an external energy supply network, can be provided or provided energy. A corresponding energy supply module can therefore be configured differently with regard to compatibility with a respective energy source, via which it provides electrical energy for a respective assigned electrical energy store, so that both the provision of electrical energy via an inductive energy source, ie in particular a wireless charging operation, as well as via an external electrical energy source, ie a wired charging operation.

At this point, it should also be mentioned again generally that the measuring device can also comprise several differently configured energy supply modules, a first energy supply module only for the electrical energy supply of the at least one electrical energy store or the measuring device with energy that can be provided or provided by an external inductive energy source and another Energy supply module can be set up only for the electrical energy supply of the at least one electrical energy store or the measuring device from an external electrical energy source, in particular an external energy supply network.

The at least one energy supply module can be assigned a control device, in particular implemented in terms of hardware and / or software, for controlling charging and discharging processes of the electrical energy store. In particular, the at least one energy supply module can comprise a corresponding control device. Charging processes of the at least one electrical energy store can then be controlled via a corresponding control device. A corresponding energy supply module can therefore be a control device which is set up to control the state of charge and / or the charging operation of the at least one electrical energy store and to determine at least one state of charge and / or charging mode information describing the state of charge and / or the charging operation of the at least one electrical energy store, include.

The measuring device can have an output device assigned to the control device, which is used to output at least one charge status or charge operation information determined by the control device to a user and / or to a user-side (mobile) end device, ie, for example, a cell phone, smartphone, laptop, tablet Smartwatch, etc., is set up to include. A corresponding output device is, in the case of direct output of corresponding charge status and / or charge mode information to a user, in particular set up to output corresponding charge status and / or charge mode information acoustically and / or optically and / or haptically. Certain charging or charging operating states of an electrical energy store on the energy supply module side can thus be output by means of certain assignable or assigned acoustic and / or optical and / or haptic signals. For this purpose, the output device can be used as a loudspeaker device for outputting acoustic signals of specific intensity (volume), frequency and rhythm and / or in the simplest case as a light-emitting diode display device for outputting optical signals with a specific graphic representation, frequency and rhythm and / or a vibration device for outputting haptic Signals of certain intensity, frequency and rhythm may be formed or include at least one. When corresponding charging status and / or charging mode information is output to a user-side (mobile) terminal, the output device is set up to send corresponding charging status and / or charging mode information directly or indirectly, ie, for example, via a communication network, to a user-side (mobile) terminal.

In order to connect the measuring device or the housing body to a corresponding energy supply module, the housing body of the measuring device has at least one receiving area for the (damage-free or non-destructive) detachable receiving of an energy supply module. The receiving area is designed as a shaft-like or shaft-shaped recess in the housing body. For the conceivable embodiment of an elongated housing body, it applies that a corresponding shaft-like or shaft-shaped recess typically extends along the longitudinal axis of the housing body or in the longitudinal direction of the housing body.

A shaft-like or -shaped recess can be understood to mean both a design of the receiving area that is only open on one side and a design of the receiving area on the housing body side that is open on several sides.

The design of the receiving area designed as a shaft-like or -shaped recess can, in a first exemplary variant, consist in the recess being (only) open on one side, ie the housing body being a shaft-like, particularly in the longitudinal direction of the housing body. has a channel-like or -shaped opening which extends in or through the housing body and which is set up via a (single) access area for (complete) accommodation of a corresponding energy store. Of the at least one (essentially cuboid or - shaped) power supply module accommodated in a correspondingly designed receiving area, typically only one end face is visible; all other sides of a correspondingly designed power supply module can be surrounded or enclosed by the housing body. The receiving area typically has one of the, in particular rectangular, cross-sectional geometry of the at least one cross-sectional geometry that is the same in this energy supply module to be accommodated; a correspondingly designed receiving area typically has a rectangular cross-sectional geometry that is adapted to the cross-sectional geometry of the at least one energy supply module to be accommodated in the latter.

The embodiment of the receiving area designed as a shaft-like or -shaped recess can, however, also consist in a further exemplary variant in that the recess has multiple sides, ie. H. in particular bilateral, is open, d. That is to say that the housing body has a channel-like or -shaped opening, in particular in the longitudinal direction of the housing body, in the form of a shaft or in the channel extending into or through the housing body, which opening is set up via (two) access areas for the (complete) reception of a corresponding energy supply module is. An end face and an exposed top or bottom side of a power supply module accommodated in a correspondingly designed receiving area are typically visible, all other sides of the power supply module are surrounded or enclosed by the housing body. In this variant, too, the receiving region typically has a cross-sectional geometry that is the same, in particular rectangular, in cross-section geometry of the at least one energy supply module to be accommodated therein; a correspondingly designed receiving area typically has a (substantially) U-shaped cross-sectional geometry.

In all cases, the receiving area thus defines a receiving space in which at least one energy supply module can be received and is or can be connected to the housing body in this way. The shaft-like or -shaped design of the receiving area enables a reliable connection and / or connection of at least one corresponding energy supply module to or with the housing body of the measuring device, in particular in terms of function and design.

As follows, an energy supply module accommodated in the receiving area or space is typically captively connected to the housing body. A connection of an energy supply module accommodated in the receiving area to the housing body typically also includes an electrical connection, ie an electrical contacting of respective electrical connection elements on the measuring device or housing body side with respective electrical connection elements on the energy supply module side, as well as a mechanical connection of the energy supply module to the housing body. The receiving area can be designed as a slide-in area into which an energy supply module to be inserted in the receiving area can be inserted, or as an insertion area into which at least one energy supply module can be inserted in the receiving area. In all cases, the geometrical-constructive dimensions of the receiving area are chosen with regard to the geometrically constructive dimensions of the at least one energy supply module to be accommodated in the accommodating area, so that insertion or insertion of an energy supply module and removal of an energy supply module accommodated in the accommodating area is possible from the receiving area . Typically, the shaft-like or -shaped shape of the receiving area defines an insertion or insertion direction that is intuitively recognizable for a user, which simplifies the handling of the measuring device in connection with the installation or removal of an energy supply module.

The receiving area can, in particular with regard to the dimensions of an energy supply module to be accommodated therein, be dimensioned such that an energy supply module accommodated therein is finally received flush with the wall sections of the housing body delimiting the receiving area. A power supply module accommodated in the accommodating area can accordingly terminate flush with the wall sections of the housing body delimiting the accommodating area. The dimensions of the measuring device typically do not change, or only insignificantly, as a result of the inclusion of an energy supply module in the housing-body receiving region, which also results in a compact shape of the housing body in the state in which an energy supply module is accommodated in the housing-body receiving region.

The recording area can e.g. B. be formed in the area of a rear or underside of the housing body. The rear or underside of the housing body is typically the side of the housing body, which has one with at least one display element, ie for example a display, for displaying information and / or an operating element for operating the measuring device and / or a measuring connection element for connecting a measuring cable is arranged or formed on the side of the housing body equipped with the measuring device. The housing body can accordingly, in particular in the region of a front side arranged or formed opposite a rear or underside, with at least one display element for displaying information and / or an operating element for operating the measuring device and / or with at least one connecting element for a measuring cable be equipped. The measuring device or the housing body can comprise a guide device for movably guiding an energy supply module to be received or received in the receiving area at least between a first guide position, in particular a guide starting position, and a second guide position, in particular a guide end position. A corresponding guide device enables stable and reliable guidance of an energy supply module accommodated in the receiving area between corresponding guide positions and accordingly improves the handling of the measuring device in connection with the installation or removal of an energy supply module. A corresponding second guide position, ie in particular a guide end position, can be defined by a stop designed or arranged on the housing body side. A corresponding stop can be arranged or formed by a wall section of the housing body delimiting the receiving area or in the area of a wall section of the housing body delimiting the receiving area.

The guide device can comprise at least one first guide element arranged or formed on the housing body and at least one second guide element arranged or formed on the energy supply module side, which are configured to cooperate to form the movable guide of an energy supply module accommodated in the receiving area. Corresponding first and second guide elements can, for. B. positive cooperation; with appropriate guide elements, it can accordingly. B. to corresponding positive locking elements, d. H. e.g. B. are projections and corresponding recordings.

As an alternative or in addition, the measuring device or the housing body can comprise a securing device for securing an energy supply module accommodated in the accommodating area, in particular in a leading end position, against an undesired movement of the energy supply module from the accommodating area. A corresponding securing device enables a stable and reliable reception of an energy supply module accommodated in the reception area and improves the handling of the measuring device; the measuring device can, for. B. by a user, can be moved as desired without risking loss of the power supply module.

The securing device can comprise at least one first securing element arranged or formed on the housing body side and at least one second securing element arranged or formed on the energy supply module side, which are set up to form a securing element accommodated in the receiving area Interact energy supply module. Corresponding first and second securing elements can - analogously to respective first and second guide elements (if present) - z. B. positive cooperation; with appropriate guide elements, it can accordingly. B. to corresponding positive locking elements, ie z. Z. B. hook-like or -shaped, projections or corresponding recordings.

First securing elements arranged or formed on the housing body side can be spring-loaded into a securing position by means of a spring force exerted by a respective spring element, so that securing takes place by forming a z. B. positive connection spring-loaded against the energy supply module-formed second securing elements are moved.

Solving such a z. B. positive connection z. B. by actuating respective actuating elements coupled to respective first securing elements against the spring force. Corresponding actuating elements can be arranged in the area of the housing body and, relative to this, between at least two

Operating positions, with at least one operating position resulting in the release of the positive connection, be movably supported.

To connect one recorded in the recording area

To produce the power supply module with the respective components or consumers of the measuring device that are to be supplied with electrical power, an electrical connecting element forming part of an electrical connecting device on the housing body side, ie. H. in particular an electrical contact for the electrical connection of a receptacle received in the receiving area

Power supply module may be arranged or formed. A corresponding electrical connection element can, for. B. be arranged or formed in the area of the receiving area. In this way, it can be ensured that, by properly accommodating an energy supply module in the accommodating area, an electrical connection of the energy supply module to respective components or consumers of the measuring device to be electrically supplied can be established or established.

A corresponding electrical connection element can in particular be arranged or formed in the region of a wall section of the housing body delimiting the receiving region. According to an expedient arrangement or configuration, the electrical connection element is recessed in a contact-protected manner within a wall section of the housing body that delimits the receiving region executed trained recess arranged or formed. The electrical connection element can thus z. B. set back or formed against a wall portion of the housing body delimiting the receiving area, so that touching the electrical connection element by a user is not possible. Such a touch-protected (e.g. in the sense of the relevant standards for touch protection of electrical or electronic devices) arrangement or design of the electrical connection elements on the housing body side results in considerable safety-related advantages of the measuring device. Due to the fact that the electrical connection elements on the housing body side are arranged protected against contact, the electrical connection elements are, for. B. even if there is an electrical measuring voltage present during operation of the measuring device, ie, for example a high voltage, cannot be touched by a user. Corresponding is an electrical disconnection of the measuring device from a measuring circuit when a change is made

Power supply module not (absolutely) required.

With regard to the energy supply module, a second electrical connection element forming part of a second electrical connection device on the energy supply module side for the electrical connection of the energy supply module accommodated in the receiving region to an electrical connection device on the housing body side or an electrical connection element associated therewith as one of a housing body on the energy supply module side, in particular in the manner of a projection or shape , outstanding approach. A corresponding approach is set up to engage or immerse, as described, in a recess of the housing body-side electrical connection element, which forms part of an electrical connection device on the housing body side, in a recess formed in the region of a wall section of the housing body which delimits the housing-body-receiving region, in which recess the one Part of the electrical connection element forming the housing body-side connection device is arranged or formed. An electrical connection element on the power supply module side is accordingly dimensioned, in particular in the longitudinal direction with respect to a longitudinal axis on the connection element side, in such a way that it can in any case be contacted with an electrical connection element on the housing body side which is designed or arranged in a manner protected against contact. The second electrical connection element on the power supply module side is typically designed to be protected against contact. The second electrical connection element on the power supply module side is in particular insulated, that is to say, for example, at least in sections it is surrounded by an insulation material or an insulation material structure such that contact by a user is not possible. To the measuring device against external, ie in particular mechanical, influences such. B. to protect improper handling, falls, etc., the measuring device can comprise a detachably connectable or connected to the housing body, at least partially surrounding it in the state connected to the housing body to protect the housing body from external influences. The protective covering can be made of a mechanical influence absorbing or damping material, such as. B. an elastomer or rubber material, or a mechanical influences absorbing or damping material structure, such as. B. a foam or cell structure.

The protective sheath can be formed with at least one recess through which an energy supply module accommodated in the housing body-side receiving region can be removed from the receiving region, or an energy supply module to be accommodated in the housing body-side receiving region can be inserted into the receiving region. In this way, it is also possible to change an energy supply module if a corresponding protective sheath is connected to the housing body.

The protective cover can be, for. B. formed by projections, actuating elements which are arranged or designed such that they are coupled to the housing body-side coupled with respective first securing elements

Actuators can interact. Specifically, in the state of the housing body accommodated in the protective casing, by exerting pressure, i.e. H. e.g. B. finger pressure, on the actuating elements of the protective cover an actuation of the housing body side coupled to respective first securing elements

Actuating elements take place, which results in the release of the energy supply module. In this way, it is possible to remove an energy supply module from the protective sheath or to change an energy supply module.

In addition to a corresponding recess for an energy supply module, the protective sheath can also be formed with at least one further recess, in particular for display and / or operating and / or measuring connection elements arranged or formed on the housing body side.

In addition to the measuring device, the invention also relates to a housing body for a measuring device as described. The housing body is characterized in that it has at least one receiving area for detachably receiving at least one energy supply module, the receiving area being designed as a shaft-like or -shaped recess in the housing body. All, in particular housing-related, designs in connection with the The measuring device applies analogously to the housing body.

In addition, the invention relates to an energy supply module for a measuring device as described. All, in particular energy supply module-related, designs in connection with the measuring device apply analogously to the energy supply module.

The invention is explained in more detail using exemplary embodiments in the drawings. Show:

1 - 6 each show a schematic representation of a measuring device according to one

Embodiment;

7, 8 each show a schematic representation of an energy supply module according to one

Embodiment;

9, 10 each show a basic representation of a measuring device according to another

Embodiment; and

11, 12 each show a schematic representation of a protective covering according to a

Embodiment.

FIGS. 1-6 each show a basic illustration of a measuring device 1 according to a first exemplary embodiment; The measuring device 1 is shown in FIG. 1 in a front view, in FIG. 2 in a perspective view on the front side and in FIG. 3 in a perspective view on the rear side.

The measuring device 1 is used to measure electrical quantities or measurement quantities, i. H. in particular electrical currents and / or electrical voltages. The measuring device 1 can be a multimeter, for example. The measuring device 1 is designed as a mobile or portable terminal.

The measuring device 1 comprises a housing body 2 defined in terms of its spatial-physical shape by walls 2a-2f or wall sections. In the exemplary embodiments shown in the figures, the walls 2a-2f are designated by way of example, the walls 2a, 2b in each case one side of the Housing body 2 forming side wall, wall 2c is a front wall forming the front side of housing body 2, wall 2d is a rear wall forming the rear or rear side of housing body 2, wall 2e is an upper wall forming the top side of housing body 2 and the Wall 2f is a lower one forming the underside of the housing body 2 Wall forms. The housing body 2 can be made in one or more parts; the walls 2a - 2f can accordingly represent wall sections of a one-piece housing body 2 or a multi-part housing body 2, that is to say wall sections of respective housing body segments which can be or are connected to one another to form the housing body 2.

The housing body 2 comprises a housing (interior) space (not shown in more detail); this is an inner housing body volume limited by corresponding walls or wall sections of the housing body 2. The housing space serves functionally as an accommodation space for accommodating various electrical or electronic components or assemblies of the measuring device 1. In the housing space there is a measuring device (not shown) for measuring an electrical quantity that can be measured or measured by means of the measuring device 1, ie. H. arranged or designed, in particular, for recording and processing a measurement signal which is measurable or to be measured by means of the measuring device 1.

The measuring device 1 is assigned an energy supply module 3 (cf. in particular FIGS. 4-6) for the electrical supply of the measuring device 1, in particular the measuring device, with electrical energy, via which the measuring device 1 is supplied with electrical energy. The electrical energy required for the operation of the measuring device 1 or the measuring device is then made available via the energy supply module 3.

In order to connect the measuring device 1 or the housing body 2 to the energy supply module 3, the housing body 2 has a receiving area 4 for detachably (without damage or destruction) receiving the energy supply module 3. The receiving area 4 is formed as a shaft-like or shaft-shaped recess 5 in the housing body 2 (cf. in particular FIGS. 4-6). In the exemplary embodiments shown in the figures, the receiving area 4 is formed in the area of the rear side of the housing body 2 and extends in the longitudinal direction of the elongated housing body 2.

The shaft-like or -shaped recess 5 of the design of the receiving area 4 in the exemplary embodiments shown in the figures consists in the recess 5 being open on more than one side, ie on both sides, that is to say that the housing body 2 has a shaft-like or shaft-like shape has or extends through the housing body 2 channel-like or -shaped opening 6. 2, 3 that an end face and an upper side of the energy supply module 3 accommodated in the receiving area 4 are exposed and are therefore visible; all other sides of the energy supply module 3 are surrounded or enclosed by the housing body 2. It can be seen from FIGS. 4-6 that the receiving region 4 has a cross-sectional geometry that is the same as the (essentially) cuboid cross-sectional geometry of the cuboid-like or -shaped energy supply module 3 in the exemplary embodiments; specifically, the receiving area 4 in the exemplary embodiments shown in the figures has an (essentially) U-shaped cross-sectional geometry.

The energy supply module 3 received in the receiving area 4 is captively connected to the housing body 2. A connection of the energy supply module 3 accommodated in the receiving area 4 to the housing body 2 includes an electrical connection, i. H. an electrical contacting of respective electrical connection elements 7 on the measuring device or housing body side, as well as a mechanical connection of the energy supply module 3 to the housing body 2.

In the exemplary embodiments shown in the figures, the receiving area 4 is designed as an insertion or insertion area, in which the energy supply module 3 to be inserted in the receiving area 4 can be inserted or inserted. The insertion or insertion direction coincides with the longitudinal axis or direction of the housing body 2. The geometrical-constructive dimensions of the receiving area 4 are accordingly chosen with regard to the geometrical-constructive dimensions of the energy supply module 3 to be accommodated in the accommodating area 4, so that the energy supply module 3 is plugged in or pushed in and the energy supply module 3 accommodated in the receiving area 4 is removed from the Recording area 4 is possible (see. Fig. 4 - 6). The insertion or insertion of the energy supply module 3 is indicated in FIGS. 4-6 by the arrow P1.

The receiving area 4 is dimensioned with regard to the dimensions of the energy supply module 3 to be accommodated in such a way that the energy supply module 3 accommodated therein is finally received flush with the wall sections of the housing body 2 delimiting the receiving area 4 (cf., for example, FIG. 3). . The energy supply module 3 accommodated in the accommodating area 4 is therefore flush with the wall sections of the housing body 2 delimiting the accommodating area 4.

In the exemplary embodiments shown in the figures, the measuring device 1 comprises a guide device 10 for movably guiding the energy supply module 3 accommodated in the receiving area 4 between a first guide position, in particular a starting guide position shown in FIG. 5, and a second one Management position, especially a z. B. in Figs. 2, 3 shown end position, and vice versa. The second guide position, ie the guide end position, is clearly defined by a stop formed on the housing body side. The stop is formed by a wall section 9 of the housing body 2 which delimits the receiving region 4 and extends transversely with respect to the longitudinal axis of the housing body 2.

The guide device 10 comprises first guide elements 10a on the housing body side, which in the exemplary embodiments shown in the figures are formed by wall sections of the housing body 2 delimiting the receiving area 4, and second guide elements 10b on the power supply module side, which in the exemplary embodiments shown in the figures are formed by a housing body 1 1 of the energy supply module 3 laterally delimiting wall sections are formed. The guide elements 10a, 10b are set up to cooperate in a form-fitting manner to form the movable guide of the energy supply module 3 to be received or received in the receiving area 4; in the case of corresponding guide elements 10a, 10b, although not shown in the figures, corresponding positive-locking elements, i. H. e.g. B. protrusions or corresponding recordings.

The measuring device 1 further comprises a securing device 12 for securing the energy supply module 3 accommodated in the receiving area 4, in particular in the leading end position, against an undesired movement of the energy supply module 3 from the receiving area 4.

The securing device 12 comprises first securing elements 12a on the housing body side, which in the exemplary embodiments shown in the figures are formed purely by way of example by form-locking elements in the form of receiving openings in the region of the wall sections of the housing body 2 delimiting the receiving area 4, and second securing elements 12b formed on the energy supply module side, which in the exemplary embodiments shown in the figures purely by way of example by form-locking elements in the form of the housing body 11 of the energy supply module 3, ie. H. in particular a free end facing the housing body 2 of the measuring device 1 and projecting in the longitudinal direction of hook-like or - shaped projections are formed. The securing elements 12a, 12b are set up to cooperate in a form-fitting manner by forming the securing device for the energy supply module 3 accommodated in the receiving area 4.

The first securing elements 12a formed on the housing body side can be moved in by means of a spring force exerted by a respective spring element (not shown) The securing position must be spring-loaded so that it is secured in such a way that it is spring-loaded against the second securing elements 12b designed on the power supply module side to form a positive connection. This positive connection can be released in the exemplary embodiments shown in the figures by actuating respective actuating elements 13 coupled to respective first securing elements 12a against the spring force. In the exemplary embodiments shown in the figures, the actuating elements 13 are arranged in the region of the housing body 2 of the measuring device 1 and are movably mounted relative to the latter between at least two actuating positions, at least one actuating position resulting in the positive connection being released.

In order to establish a connection between an energy supply module 3 accommodated in the receiving area 4 and the respective components of the measuring device 1 that are to be supplied with electricity, the housing body 2 of the measuring device 1 comprises the electrical connecting element 7 that forms part of an electrical connection device 8 on the housing body side, ie. H. in particular an electrical contact. The electrical connection element 7 is arranged in the area of the receiving area 4. An electrical connection of the energy supply module 3 to the respective components of the measuring device 1 to be supplied with electrical power can thus be produced or established by properly accommodating the energy supply module 3 in the receiving area 4.

It can be seen from FIGS. 4-6 that the electrical connection element 7 is arranged in the region of a wall section 9 of the housing body 2 delimiting the receiving region 4. Specifically, in the exemplary embodiments shown in the figures, the electrical connection element 7 is arranged in a contact-protected manner within a wall section 9 in the region of the wall section 9 delimiting the receiving area 4 in a recess 14 which is recessed with respect to a wall section 9 delimiting the receiving area 4. The electrical connection element 7 is thus set back in relation to the wall section 9 delimiting the receiving region 4, so that it is not possible to touch the electrical connection element 7. Due to the fact that the electrical connection element 7 on the housing body side is arranged protected against contact, the electrical connection element 7 is, for. B. even if there is an electrical measuring voltage present during operation of the measuring device 1, d. H. e.g. B. a high voltage, not touchable. Correspondingly, an electrical disconnection of the measuring device 1 from a measuring circuit is not (absolutely) necessary when changing the energy supply module 3.

4-6 it can also be seen that a part of a (second) electrical connection device 15 on the power supply module side is connected to a Any existing electrical supply module 25 on the power supply module side will be discussed in more detail below in connection with FIG. 8 - forming a second electrical connection element 16 for the electrical connection of the energy supply module 3 accommodated in the receiving region 4 to the electrical connection device 8 on the housing body side or the electrical connection element 7 associated therewith as a projection projecting or projecting from the housing module 11 on the energy supply module side can be formed. A corresponding approach is set up to engage in the state electrically connected to the electrical connection element 7 on the housing body side, in the recess 14 formed in the region of the wall section 9 delimiting the receiving region 4, in which recess 14 the electrical connection element 7 is arranged. The electrical connection element 16 on the power supply module side is accordingly dimensioned, in particular in the longitudinal direction with respect to a longitudinal axis on the connection element side, such that it can in any case be contacted with the electrical connection element 7 arranged on the housing body in a contact-protected manner. The electrical connection element 16 on the power supply module side is typically insulated in such a way that contact by a user is not possible.

The. 7, 8 each show a basic illustration of an energy supply module 3 according to an exemplary embodiment, the energy supply module 3 in FIG. 7 in a perspective view of the outside of the energy supply module 3 exposed in the intended state in the receiving area 4 of the housing body 2 of the measuring device 1 and FIG. 8 shows a perspective top view of the inside of the energy supply module 3 that is not exposed in the intended state in the receiving area 4 of the housing body 2 of the measuring device 1.

The energy supply module 3 shown in FIG. 7 is set up for the electrical energy supply of the measuring device 1 with energy that can be provided or provided by an external inductive energy source (not shown). The energy supply module 8 shown in FIG. 8 is set up for the electrical supply of the measuring device 1 with electrical energy that can be provided or provided by an external electrical energy source, in particular an external energy supply network.

The energy supply module 3 shown in FIG. 7 comprises an electrical energy store (not shown) which can be inductively charged with energy which can be provided or provided by an external inductive energy supply source, such as, for. B. an accumulator, or battery for short. The electrical energy storage device can be charged without a charging cable and thus without wires or cables. In this exemplary embodiment, the energy supply module 3 comprises an inductive element 22 assigned to an inductively chargeable electrical energy store, ie an inductive coil (receiver or secondary coil) which is (s) set up to inductively charge the electrical energy store via inductive interaction with at least one further inductive element (not shown), ie typically to supply an additional inductive coil (transmitter or primary coil), an external inductive energy source with electrical energy. The inductive element 22 is thus set up to generate electrical energy via inductive interaction with at least one further inductive element and to thus supply the electrical energy store with electrical energy. The further inductive element is not part of the energy supply module 3, but part of an external inductive energy source, ie, for example, a separate charging device for charging the electrical energy store of the energy supply module 3. The inductive element 22 on the energy supply module side is further referred to as the “first inductive element”, a charging device side another inductive element is referred to below as “second inductive element”.

The inductive interaction between the respective first and second inductive elements results in a wireless or wireless inductive energy transmission between them. A magnetic field, in particular an alternating magnetic field, is generated in the further or second inductive element serving as the transmitter or primary coil, as a result of which an electrical voltage, in particular an alternating electrical voltage, is induced in the first inductive element 22 serving as the receiving or secondary coil becomes.

Since there is an electrically conductive connection between the first inductive element 22 and the electrical energy store associated therewith, the electrical energy generated in the first inductive element 22 upon inductive interaction with the second inductive element of the energy store can be supplied to the electrical energy store for a charging process.

7 that the first inductive element 22 can be arranged or formed on or in the housing body 11 of the energy supply module 3. The first inductive element 22 can thus be integrated into the housing body 11 of the energy supply module 3. Although the first inductive element 22 in FIG. 7 is shown as being exposed within a recess 23 in the housing body 11 of the energy supply module 3, it can of course also be completely integrated in the housing body 11 of the energy supply module 3, so that, contrary to the illustration in FIG. 7 is neither touchable nor visible from the outside. The energy supply module 3 shown in FIG. 8 comprises an electrical energy store (not shown) which can be charged by an external electrical energy source (not shown), in particular an electrical energy supply network, or by providing electrical energy. Charging processes of the electrical energy store take place here with a charging cable 24 and thus take place by wire or cable. The operation of the measuring device 1 can also take place in a wired or cable-connected manner in the state of the energy supply module 3 connected to an external electrical energy source via a corresponding charging cable 24, which basically makes the operation of the measuring device 1 independent of the state of charge of the energy store. This is particularly useful for long-term operation of the measuring device 1, ie in particular for long-term measurements. It is also conceivable to use the energy supply module 3 to implement a pure network operation of the measuring device 1 and thus an “energy supply bypass”, which enables the measuring device 1 to be operated completely independently of the electrical energy store and thus to operate the measuring device 1, for example. B. also ensures in the event of a defect in the at least energy store. This is also particularly useful for long-term operation of the measuring device 1, ie in particular for long-term measurements.

In order to establish a connection between the energy supply module 3 and an external electrical energy source, a first electrical connection element 26, which forms part of a first electrical connection device 25 of the energy supply module 3 and forms part of a first electrical connection device 25 of the energy supply module 3, is connected to the housing body 1 1 for connecting a connection to an external electrical energy source Charging cable 24 arranged or formed on the power supply module 3. As can be seen, the first connection element 26 can be designed as a plug receptacle for a plug section 27 of the charging cable 24.

8 that the first electrical connection element 26 can be arranged or formed in the area of an exposed surface area 28 of the housing body 11 of the energy supply module 3 in the state of the power supply module 3 that is intended to be accommodated in the receiving area 4 of the housing body 2 of the measuring device 1. The first electrical connection element 26 is thus easily accessible.

Specifically, FIG. 8 shows that the first electrical connection element 26 in the state of the power supply module 3, which is intended to be accommodated in the receiving area 4 of the housing body 2 of the measuring device 1, in the area of an end face of the housing body 11 of the power supply module 3 and thus also in the area of the housing body-side receiving area 4 in the state of the power supply module 3 exposed front side of the housing body 4 of the measuring device 1 can be arranged or formed.

As can be seen, the first connection element 26 can thus be arranged or formed in the region of one side of the housing body 11 of the energy supply module 3, which is accessible in the state of the energy supply module 3 which is intended to be accommodated in the housing region 4 on the housing body side. The energy supply module 3 does not have to be removed from the receiving area 4 in order to be connected or charged with a charging cable 24.

Both the energy supply module 3 shown in FIG. 7 and the FIG. 8 can be assigned a control device (not shown), in particular implemented in terms of hardware and / or software, for controlling charging and discharging processes of the respective electrical energy store. In particular, the respective energy supply module 3 can comprise a corresponding control device. Charging processes of the respective energy store can then be carried out via a corresponding control device which is used to control the state of charge and / or the charging operation of the at least one electrical energy store and to determine at least one state of charge and / or charging mode information describing the state of charge and / or the charging operation of the at least one electrical energy store is set up to be controlled.

The measuring device 1 can have an output device (not shown) assigned to a corresponding control device, which is used to output at least one charge status or charge operation information determined by the control device to a user and / or to a user-side (mobile) terminal device, ie, for example, a cell phone, smartphone , Laptop, tablet, a smartwatch, etc., is included. A corresponding output device is, in the case of direct output of corresponding charge status and / or charge mode information to a user, in particular set up to output corresponding charge status and / or charge mode information acoustically and / or optically and / or haptically. Certain charging or charging operating states of an electrical energy store on the energy supply module side can thus be output by means of certain assignable or assigned acoustic and / or optical and / or haptic signals. For this purpose, the output device can be used as a loudspeaker device for outputting acoustic signals of specific intensity (volume), frequency and rhythm and / or in the simplest case as a light-emitting diode display device for outputting optical signals with a specific graphic representation, frequency and rhythm and / or a vibration device for outputting haptic Signals certain intensity, frequency and rhythm should be formed or include at least one. When corresponding charging status and / or charging mode information is output to a user-side (mobile) terminal, the output device is set up to send corresponding charging status and / or charging mode information directly or indirectly, ie, for example, via a communication network, to a user-side (mobile) terminal.

9, 10 each show a basic illustration of a measuring device 1 according to a second exemplary embodiment of the measuring device 1 that can be combined with the first exemplary embodiment of the measuring device 1; The measuring device 1 is shown in FIG. 9 in a perspective view on the front side and in FIG. 10 in a perspective view on the rear side. 1 1, 12 each show a basic illustration of a protective sheath 17; the protective cover

17 is shown in FIG. 11 in a perspective view on the front side and in FIG. 12 in a perspective view on the rear side.

The protective sheath 17 is used to protect the measuring device 1 from external, ie. H. in particular mechanical, influences such. B. improper handling, falls, etc. to protect. The protective sheath 17 is releasably connectable or connected to the housing body 2 of the measuring device 1 (cf. FIGS. 9, 10) and surrounds it in sections when it is connected to the housing body 2. The protective sheath 17 is made of a mechanical influence absorbing or damping material, such as. B. an elastomer or rubber material, or a mechanical influences absorbing or damping material structure, such as. B. a foam or cell structure.

9-12 it can be seen that the protective sheath 17 has a recess

18 is formed, through which an energy supply module 3 accommodated in the housing body-side receiving region 4 can be removed from the receiving region 4 or an energy supply module 3 to be accommodated in the housing body-side receiving region 4 can be inserted into the receiving region 4. In this way, it is also possible to change an energy supply module 3 if the protective sheath 17 is connected to the housing body 2.

The figures also show that the protective sheath 17 is provided with actuating elements 22 that are designed in a protruding manner in the exemplary embodiments. The actuating elements 22 are arranged and designed in such a way that they can interact with the actuating elements 13 on the housing body side coupled to the respective first securing elements 12a. Specifically, when the housing body 2 is accommodated in the protective sheath 17, the actuating elements 22 can be actuated by exerting pressure, ie, for example, finger pressure Actuate elements 13 coupled to the respective first securing elements 12a on the housing body side, which results in the energy supply module 3 being released. In this way, removal or replacement of an energy supply module 3 is possible.

In addition to a corresponding recess 18 for the energy supply module 3, the protective sheath 17 is also formed with at least one further recess, in particular for display elements 19, operating elements 20 or measuring connection elements 21 arranged or formed on the housing body side.

Individual, several or all features of a specific exemplary embodiment can be combined with individual, several or all characteristics of at least one further exemplary embodiment.

Claims

PAT EN TA NSPRÜ CHE

1. Measuring device (1) for measuring electrical quantities, in particular electrical voltages and / or electrical currents, comprising:

a housing body (2) comprising a housing space,

- At least one measuring device arranged or formed in the housing space for measuring an electrical variable measurable by means of the measuring device (1), characterized in that the housing body (2) has at least one receiving area (4) for detachably receiving at least one electrical energy supply module (3) for electrical Energy supply of the measuring device (1) with energy that can be provided or provided by an external inductive energy source and / or energy that can be provided or provided by an external electrical energy source, in particular an external energy supply network, wherein

the receiving area (4) is designed as a shaft-like or -shaped recess (5) in the housing body (2).

2. Measuring device according to claim 1, characterized by at least one in the housing body-side receiving area (4) receivable or accommodated energy supply module (3) for the electrical energy supply of the measuring device (1) with an external inductive energy source and / or from an external electrical energy Energy source, in particular an external energy supply network, available or provided energy.

3. Measuring device according to claim 1 or 2, characterized in that the at least one energy supply module (3) for the electrical energy supply of the measuring device (1) is set up with energy that can be provided or provided by an inductive energy source, wherein

the at least one energy supply module (3) comprises at least one electrical energy store which can be inductively charged by an external inductive energy supply source.

4. Measuring device according to claim 3, characterized in that the at least one energy supply module (3) at least one of the inductively chargeable electrical Energy storage associated inductive element (22), which is set up to supply the at least one inductively rechargeable electrical energy storage (3) via inductive interaction with an inductive element (5) of an external inductive energy source with electrical energy.

5. Measuring device according to claim 3 or 4, characterized in that the at least one energy supply module-side inductive element (22) is designed as an inductive coil, in particular an inductive receiver or secondary coil, or at least comprises one.

6. Measuring device according to one of claims 3 to 5, characterized in that the at least one energy supply module-side inductive element (22) is arranged or formed on or in a housing body (11) of the at least one energy supply module (3).

7. Measuring device according to one of the preceding claims, characterized in that the at least one energy supply module (3) for the electrical energy supply of the measuring device (1) with an external electrical energy source, in particular an electrical energy supply network, can be provided or provided electrical energy, wherein the at least one energy supply module (3) comprises at least one electrical energy store which can be recharged by an external electrical energy source, in particular an electrical energy supply network.

8. Measuring device according to claim 7, characterized in that at least one part of an electrical connection device (25) of the energy supply module (3) on the at least one energy supply module (3), in particular on a housing body (11) of the at least one energy supply module (3). Electrical connecting element (26) for connecting a charging or supply cable (24) which can be connected or is connected to an external electrical energy source to the at least one energy supply module (3).

9. Measuring device according to claim 8, characterized in that the at least one electrical connection element (26) in the area of an exposed in the receiving area (4) of the housing body (2) of the measuring device (1) state of the power supply module (3) exposed surface area of a housing body (1 1) of the at least one energy supply module (3) is arranged or formed.

10. Measuring device according to claim 9, characterized in that the at least one electrical connection element (26) in the receiving area (4) of the housing body (2) of the measuring device (1) recorded state of the at least one energy supply module (3) in the region of an end face of the Housing body (2) of the measuring device (1) is arranged or formed.

1 1. Measuring device according to one of the preceding claims, characterized in that the at least one energy supply module (3) comprises a control device, in particular implemented in terms of hardware and / or software, for controlling charging and discharging processes of the electrical energy store.

12. Housing body (2) for a measuring device (1) according to one of the preceding claims, characterized in that the housing body (2) has at least one receiving area (4) for releasably receiving at least one energy supply module (3), the receiving area (4) is designed as a shaft-like or -shaped recess (5) in the housing body (2).

13. Energy supply module (3) for a measuring device (1) according to one of claims 1 to 1 1.