JP7299389B1 - Explosion-proof lighting equipment - Google Patents

Abstract

An explosion-proof lighting fixture that can be made lighter and smaller is provided. SOLUTION: A lighting fixture A (explosion-proof lighting fixture) used in indoor and outdoor areas, comprising a fixture body 1 having a light-emitting part inside, a storage battery container 2 containing a storage battery, and a charging device for charging the storage battery. and a charging device container 3 that houses the device, the device main body 1 has a safety-increased explosion-proof structure, the storage battery container 2 and the charging device container 3 both have a pressure-resistant explosion-proof structure, and the outer peripheral side of the device main body 1 A first mounting portion 91 including a first opening 910 is provided on one side of the battery container, and a second mounting portion 92 including a second opening 920 is provided on the other side of the outer peripheral side. 2 is attached to the first attachment portion 91 so as to be partially exposed from the first opening 910 , and the charging device container 3 is attached to the second attachment portion 92 so as to be partially exposed from the second opening 920 . characterized by [Selection drawing] Fig. 3

Description

The present disclosure relates to explosion-proof lighting fixtures for use in indoor and outdoor areas such as factories, plants, warehouses, and the like.

Conventionally, as lighting used in indoor and outdoor areas such as factories, plants, and warehouses, safety-increased explosion-proof lighting fixtures (see, for example, Patent Document 1), pressure-resistant explosion-proof lighting fixtures (see, for example, Patent Document 2), etc. It has been known.

As a lighting fixture, for example, an emergency lighting fixture (see, for example, Patent Document 3) is known that includes a storage battery capable of lighting a light-emitting portion in an emergency such as a power outage.

JP 2022-031613 A JP 2018-010729 A JP 2018-139222 A

Here, for example, when an emergency lighting fixture as disclosed in Patent Document 3 is made to have an explosion-proof structure, it is necessary to accommodate a storage battery and the like in a container having a pressure-resistant explosion-proof structure for safety reasons. However, in order to ensure the robustness of the pressure-resistant explosion-proof container, there is a concern that the container will become heavy and large.

The present disclosure has been made to solve the above conventional problems, and an object of the present disclosure is to provide an explosion-proof lighting fixture that can be made lighter and smaller.

In order to achieve the above object, the explosion-proof lighting fixture disclosed in the present specification is an explosion-proof lighting fixture for use in indoor and outdoor areas, comprising a fixture body having a light-emitting part inside and a storage battery containing a storage battery. A container and a charging device container containing a charging device for charging the storage battery, wherein the device main body has an increased safety explosion-proof structure, and the storage battery container and the charging device container both have a pressure-resistant explosion-proof structure. A first mounting portion including a first opening is provided on one of the outer peripheral side surfaces of the instrument body, and a second mounting portion including a second opening is provided on the other side of the outer peripheral side surface. is provided, the storage battery container is attached to the first mounting portion so as to be partially exposed from the first opening, and the charging device container is mounted to the first mounting portion so as to be partially exposed from the second opening 2 mounting portion.

In the explosion-proof lighting fixture, the portion of the storage battery container exposed from the first opening may be provided with an insertion/removal opening for inserting/removing the storage battery and a lid for opening/closing the insertion/removal opening.

In the explosion-proof luminaire, the portion exposed from the second opening in the charging device container is provided with an inspection mode in which the power supply to the light emitting unit is the normal power supply, and the storage battery is the power supply. An inspection switch section for switching, and a power switch section for switching lighting and extinguishing of the light emitting section may be provided.

According to the present disclosure, it is possible to reduce the weight and size of the explosion-proof lighting fixture.

1 is a front perspective view of a lighting fixture in one embodiment; FIG. Figure 2 is a rear perspective view of the luminaire of Figure 1; 2 is an exploded perspective view of the lighting fixture of FIG. 1; FIG. It is a sectional view showing the instrument body in one embodiment. 1 is a schematic exploded perspective view showing a storage battery container in one embodiment; FIG. FIG. 6 is a sectional view showing the storage battery container of FIG. 5 and its surroundings; 1 is a front view of a charging device container in one embodiment; FIG. FIG. 8 is a cross-sectional view showing the charging device container of FIG. 7 and its surroundings;

Embodiments of the present disclosure will be described below with reference to the accompanying drawings. In addition, the same code|symbol is attached|subjected to the same component among each embodiment described below, and the description which overlaps with these components is abbreviate|omitted.

-lighting equipment-
FIG. 1 is a front perspective view showing a lighting fixture A in one embodiment. 2 is a rear perspective view of the luminaire A of FIG. 1. FIG. 3 is an exploded perspective view of the luminaire A of FIG. 1. FIG. In addition, in each figure, illustration of a hanger, an electric wire, etc. is omitted. In addition, in each drawing, in order to avoid complication of the drawing, a part of representative elements of a plurality of (or a large number of) elements that are common to each other are given reference numerals.

The luminaire A (explosion-proof luminaire) is, for example, used in indoor and outdoor areas such as factories, plants, warehouses, etc., in a state of being suspended from the ceiling or the like.

A lighting fixture A includes a fixture body 1, a storage battery container 2, and a charging device container 3 (see FIGS. 1 to 3). These units will be described in order below.

<Equipment body>
FIG. 4 is a cross-sectional view showing instrument body 1 in one embodiment.

The apparatus main body 1 includes a housing 10 having an opening 10a on the bottom side, a bottom plate portion 11 attached to the housing 10 so as to cover the opening 10a, a case portion 12 attached to the bottom plate portion 11, and a case It has a light-emitting portion 13 housed inside the portion 12, a power supply portion 14 housed inside the housing 10, and an outer plate portion 15 attached to the outside of the case portion 12 (see FIG. 4). reference).

The housing 10 includes outer peripheral side portions (a front portion 100, a right side portion 101, a rear portion 102 and a left side portion 103) and a top portion 104 (see also FIGS. 1 and 2). The housing 10 is made of, for example, an aluminum alloy. Each part of the housing 10 is ribbed to improve strength.

A first attachment portion 91 to which the storage battery container 2 is attached is provided on the left side portion 103 of the housing 10 (see FIG. 3). The first mounting portion 91 includes a circular first opening 910 and a plurality of first mounting portions 910 (in the present embodiment, 4) first fastening holes 911 .

A front portion 100 of the housing 10 is provided with a second attachment portion 92 to which the charging device container 3 is attached (see FIG. 3). The second mounting portion 92 includes a modified hexagonal second opening 920 and a plurality of second openings 920 (in the present embodiment, , and six second fastening holes 921 .

The bottom plate portion 11 is made of, for example, a steel plate. The bottom plate portion 11 is fixed to the lower end side of the housing 10 by fastening members F1 at a plurality of (six in this embodiment) locations on the peripheral side (see FIG. 1).

The case portion 12 includes a right case portion 12a and a left case portion 12b both of which are made of a translucent material (for example, acrylic resin or the like) (see FIGS. 1 and 4). Both the right case portion 12a and the left case portion 12b are opened upward and form an accommodation space α in which the light emitting portion 13 can be accommodated. The right case portion 12a and the left case portion 12b are each fixed to the outer surface side of the bottom plate portion 11 by fastening members F2 at a plurality of (eight in this embodiment) locations on the peripheral side (see FIG. 1).

The light-emitting portion 13 includes a large number of LED chips 131 mounted on an LED substrate 130, and is housed in the housing space α of the case portion 12 (see FIG. 4). A conducting portion including the LED chip 131 in the light emitting portion 13 is covered with an insulating member such as a resin mold. Thereby, an electrical insulation distance (for example, an insulation space distance, a creepage distance, etc.) of the light emitting part 13 is ensured.

The power supply unit 14 supplies electric power supplied from a commercial power supply to the light emitting unit 13 and a charging device 30 which will be described later. The power supply unit 14 includes a power supply board including a power supply control circuit (not shown). Both sides of the power supply unit 14 are fixed to the inner surface side of the top surface portion 104 of the housing 10 by fastening members F3 via fixing brackets 140 (see FIG. 4). A current-carrying part of the power supply unit 14 is covered with an insulating member such as a resin mold. Thereby, the electrical insulation distance of the power supply unit 14 is ensured.

The outer plate portion 15 is made of a translucent material (for example, transparent glass, etc.). is fixed to the lower end side of the housing 10 (see FIGS. 1 and 4). An annular seal member 151 made of silicon sponge rubber or the like is provided between the housing 10 and the outer plate portion 15 . The seal member 151 prevents water, dust, and the like from entering the housing 10, and ensures the waterproof and dustproof performance of the housing 10 (for example, to the extent that it complies with the IP65 protection class).

As described above, the device main body 1 ensures an electrical insulation distance between the light emitting section 13 and the power supply section 14, and ensures the waterproof and dustproof properties of the housing 10, thereby providing an increased safety explosion-proof structure.

<Battery container>
FIG. 5 is a schematic exploded perspective view showing the storage battery container 2 in one embodiment. FIG. 6 is a sectional view showing the storage battery container 2 of FIG. 5 and its surroundings.

The storage battery container 2 accommodates the storage battery 20, and has a storage battery container main body 21 including an insertion/removal port 21a for inserting/removing the storage battery 20, and a lid portion 22 for opening/closing the insertion/removal port 21a (FIG. 3). , FIGS. 5 and 6). The storage battery 20 can turn on the light emitting unit 13 in an emergency such as a power failure, and is composed of, for example, a lithium ion battery.

The storage battery container main body 21 and the lid portion 22 are formed, for example, from casting such as aluminum die casting. The lid portion 22 is detachably fixed to the storage battery container main body 21 by fastening members F20 at a plurality of (three in this embodiment) locations on the outer peripheral side of the loading/unloading port 21a. The storage battery container 2 has a strength enough to withstand an internal explosion even if an explosive atmosphere enters inside and an internal explosion occurs, and has a pressure-resistant explosion-proof structure.

The fastening member F20 is fastened from the lid portion 22 side, which is the front side of the storage battery container 2, and is detachable. The lid portion 22 can be removed from the storage battery container main body 21 by removing the fastening member F20.

The storage battery container main body 21 includes a bottomed body portion 210 having an opening as an insertion/removal port 21a and a flange portion 211 protruding to the outer peripheral side on the opening side of the body portion 210 . The trunk portion 210 is formed so as to be able to pass through the first opening 910 of the instrument main body 1, while the collar portion 211 is formed so as to be non-insertable through the first opening 910 of the instrument main body 1 (Fig. 3).

A terminal 212 for connecting the storage battery 20 to a charging device 30, which will be described later, is provided on the outside of the bottom surface side of the trunk portion 210 (see FIGS. 5 and 6). First insertion holes 213 are provided at positions corresponding to the first fastening holes 911 of the instrument body 1 on the peripheral edge side of the collar portion 211 (see FIGS. 3 and 5). A seal member 214 such as an O-ring is provided on the back side of the flange portion 211 (see FIG. 6).

A holding member 220 that detachably holds the storage battery 20 is attached to the inside of the lid portion 22 by a fastening member F21 (see FIGS. 5 and 6). In addition, in FIG. 5, the fastening member F21 does not appear. The holding member 220 is formed by bending according to the outer shape of the storage battery 20 . When the lid portion 22 is removed from the storage battery container main body 21, the storage battery 20 held by the holding member 220 inside the lid portion 22 is taken out from the loading/unloading port 21a. The storage battery 20 is in a detachable state with respect to the holding member 220 in a state of being taken out from the loading/unloading port 21a.

The storage battery container 2 is attached to the first attachment portion 91 so as to be partially exposed from the first opening 910 of the device body 1 (see FIGS. 3 and 6). Specifically, as shown in FIG. 3 , the storage battery container 2 is housed inside the instrument body 1 through the first opening 910 until the flange 211 of the storage battery container body 21 interferes with the instrument body 1 . In this state, the fastening members F91 inserted through the first insertion holes 213 are fastened to the first fastening holes 911 of the device main body 1, so that the storage battery container 2 is removed from the first opening 910 of the device main body 1. It is attached to the first attachment portion 91 so as to be partially exposed. In other words, the loading/unloading port 21a and the lid portion 22 are provided in a portion of the storage battery container 2 exposed from the first opening portion 910 (a portion protruding outside from the device main body 1). Thereby, the lid portion 22 can be removed from the storage battery container main body 21 from the outside of the lighting fixture A, and the storage battery 20 can be taken out from the insertion/removal port 21a, and the storage battery 20 can be easily replaced.

Alternatively, the storage battery 20 may be held on the storage battery container main body 21 side, and the storage battery 20 may be manually removed from the insertion/removal port 21a after the lid 22 is removed from the storage battery container main body 21.

<Charging device container>
FIG. 7 is a front view showing the charging device container 3 in one embodiment. FIG. 8 is a cross-sectional view showing the charging device container 3 of FIG. 7 and its surroundings.

The charging device container 3 accommodates the charging device 30 for charging the storage battery 20, and has a charging device container main body 31 having an opening 31a and a closing portion 32 closing the opening 31a ( 3, 7 and 8). Note that the opening 31a does not appear in FIG.

The charging device 30 includes a charging board 30a having a charging control circuit.

The charging device container main body 31 and the closing portion 32 are made of casting such as aluminum die casting, for example. The closing part 32 is fixed to the charging device container main body 31 by fastening members F30 at a plurality of (ten in this embodiment) positions on the outer peripheral side of the opening 31a. The charging device container 3 has a strength enough to withstand an internal explosion even if an explosive atmosphere enters inside and an internal explosion occurs, and has a pressure-resistant explosion-proof structure.

Since it is not assumed that the closing portion 32 is attached to and detached from the charging device container main body 31, the fastening member F30 is fastened from the charging device container main body 31 side and removed from the closing portion 32 side, which is the front side of the charging device container 3. Impossible.

The charging device container main body 31 includes a bottomed body portion 310 and a deformed hexagonal collar portion 311 that protrudes outward from the opening side of the body portion 310 . The trunk portion 310 is formed so as to be able to pass through the second opening 920 of the instrument main body 1, while the collar portion 311 is formed so as to be non-insertable through the second opening 920 of the instrument main body 1 (Fig. 3).

A terminal (not shown) for connecting the charging device 30 to the power source section 14 is provided on the outside of the body section 310 . Second insertion holes 312 are provided at positions corresponding to the second fastening holes 921 of the instrument body 1 on the peripheral edge side of the collar portion 311 (see FIGS. 3 and 7). A seal member 313 such as an O-ring is provided on the back side of the flange portion 311 (see FIG. 8).

An inspection switch portion 33 and a power switch portion 34 are provided outside the closing portion 32 .

The inspection switch unit 33 switches from a regular mode in which the power supply to the light emitting unit 13 is the regular power supply to an inspection mode in which the power supply is the storage battery 20. Switches to inspection mode only while is being pressed. By providing the inspection switch unit 33, the remaining charge amount of the storage battery 20 can be checked.

The power switch unit 34 switches between lighting and extinguishing of the light emitting unit 13, and is composed of, for example, a dial switch. The power switch unit 34 switches ON/OFF of commercial power supply to the power supply unit 14 to switch the light emitting unit 13 on and off.

The charging device container 3 is attached to the second attachment portion 92 so as to be partially exposed from the second opening 920 of the instrument main body 1 (see FIGS. 3 and 8). Specifically, as shown in FIG. 3 , the charging device container 3 is configured such that the body portion 310 of the charging device container main body 31 extends from the second opening 920 to the inside of the device main body 1 until the flange portion 311 of the charging device container main body 31 interferes with the device main body 1 . , the fastening members F92 inserted through the second insertion holes 312 are fastened to the second fastening holes 921 of the instrument main body 1, so that the charging device container 3 is inserted into the second opening of the instrument main body 1. It is attached to the second attachment portion 92 so as to be partially exposed from the portion 920 . In other words, the inspection switch portion 33 and the power switch portion 34 are provided in a portion exposed from the second opening portion 920 in the charging device container 3 . Thereby, the inspection switch section 33 and the power switch section 34 can be operated from the outside of the lighting fixture A, and maintenance and inspection work of the lighting fixture A can be easily performed.

In the lighting fixture A described above, the storage battery 20 and the charging device 30 must be housed in a pressure-resistant explosion-proof container for safety reasons. If the storage battery 20 and the charging device 30 are housed together with the light emitting unit 13 and the power supply unit 14 in a single pressure-resistant and explosion-proof container, the weight and size of the container will increase in order to ensure the robustness of the container. There is a concern that the entire system will become heavy and large.

In this regard, in the above-described lighting fixture A, the storage battery 20 and the charging device 30 are individually accommodated in containers (the storage battery container 2 and the charging device container 3) having a pressure-resistant and explosion-proof structure, and the light emitting unit 13 and the power supply unit 14 are provided for increased safety. Since the storage battery 20, the charging device 30, the light emitting unit 13, and the power supply unit 14 are all accommodated in one pressure-resistant explosion-proof container, the lighting equipment as a whole can be saved. Since the weight and volume ratio of the pressure-resistant explosion-proof container can be reduced, a light-weight and compact lighting fixture A can be realized.

In addition, in the lighting fixture A described above, the storage battery container 2 and the charging device container 3 are partly exposed and the other parts are housed inside the fixture main body 1, so that replacement work, maintenance and inspection work, etc. of the storage battery 20 can be performed easily. A compact lighting fixture A can be realized while having a structure capable of improving workability.

The above-described embodiments are illustrative in all respects and are not grounds for restrictive interpretation. Therefore, the technical scope of the present disclosure should not be construed solely by the above-described embodiments, but should be defined based on the claims. In addition, all changes within the meaning and range of equivalents to the claims are included.

1 Apparatus Main Body 10 Housing 10a Opening 11 Bottom Plate 12 Case 13 Light Emitting Part 14 Power Supply Part 15 Outer Plate 2 Storage Battery Container 20 Storage Battery 21 Storage Battery Container Main Body 21a Entrance 22 Lid 3 Charging Device Container 30 Charging Device 31 Charging Device Container body 32 Closing part 33 Inspection switch part 34 Power switch part 91 First mounting part 910 First opening part 911 First fastening hole 92 Second mounting part 920 Second opening part 921 Second fastening hole A Lighting equipment (explosion-proof lighting equipment)

Claims (3)

An explosion-proof lighting fixture for use in indoor and outdoor areas,
A fixture body having a light emitting part inside, a storage battery container containing a storage battery, and a charging device container containing a charging device for charging the storage battery,
The device body has a safety-increased explosion-proof structure,
Both the storage battery container and the charging device container have a pressure-resistant explosion-proof structure,
A first mounting portion including a first opening is provided on one side of the outer peripheral side of the device body, and a second mounting portion including a second opening is provided on the other side of the outer peripheral side. be
The storage battery container is attached to the first attachment portion so as to be partially exposed through the first opening, and the charging device container is attached to the second attachment portion so as to be partially exposed through the second opening. Explosion-proof luminaire characterized by being mounted. The explosion-proof lighting fixture according to claim 1,
An explosion-proof luminaire, wherein a portion of the storage battery container exposed from the first opening is provided with an insertion/removal port for inserting/removing the storage battery and a lid portion for opening/closing the insertion/removal port. The explosion-proof lighting fixture according to claim 1,
The portion of the charging device container exposed from the second opening includes an inspection switch portion for switching from a normal mode in which power supply to the light-emitting portion is a regular power source to an inspection mode in which the power source is the storage battery, and and a power switch unit for switching on and off of the light emitting unit.

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