DE102010003923A1 - Drive control module for use in motor car, has circuitry carrier attaching drive control electronics unit to components, and electromagnetic compatibility filter module arranged in recess for receiving filter module in circuitry carrier - Google Patents

Abstract

The module has a circuitry carrier (1) attaching drive control electronics unit to components. An electromagnetic compatibility filter module is arranged in a recess (3) for receiving the filter module in the carrier and includes housing that is arranged in the recess and provided with a silicon gel. A punching scrap is arranged in an upper part of the housing and forms a contacting device for the filter module, where the upper part of the housing is manufactured from metal, and a lower part of the housing is manufactured from plastic and formed as heat-conducting plate.

Description

The present invention relates to a transmission control module according to the preamble of claim 1.

Electrical filter components are used to produce a transmission control module or a transmission control, in particular a motor vehicle, conventionally directly to the circuit carrier, for. B. a circuit board equipped. This leads to considerable space for the relatively large components of an LC element, i. e. Coils and capacitors, is needed. An arrangement in which the necessary space is opened, may require that interconnects must be crossed on the circuit board in a disadvantageous manner.

Furthermore, such surface mounting is disadvantageous insofar as protection of the LC element or filter components from the strong vibrations in the transmission and from shock is possible only with additional effort.

Proceeding from this, the present invention seeks to propose a transmission control module, which overcomes the disadvantages of the prior art and in which the filter components are arranged space saving and protected.

This object is achieved by the features of claim 1.

The invention proposes a transmission control module comprising a circuit carrier for connecting a transmission control electronics to further components, wherein the transmission control module has an EMC filter module, which is arranged in a recess which is formed in the circuit carrier for receiving the EMC filter module.

In one embodiment of the transmission control module according to the invention, the EMC filter module has a housing, wherein the housing is arranged in the recess.

In a further embodiment of the transmission control module according to the invention, at least one stamped grid for forming a contact-making device for the EMC filter module is arranged in the housing, in particular in the housing upper part.

In yet another embodiment of the transmission control module according to the invention at least one coil and at least one capacitor are arranged in the housing of the EMC filter module, which cooperate for the purpose of interference suppression, wherein the coil and the capacitor are electrically conductively connected to the lead frame, in particular by means of connecting wires thereto are welded.

According to one aspect of the transmission control module according to the invention, the lower housing part is made of metal and / or the upper housing part is made of plastic.

According to a further aspect of the transmission control module according to the invention, the lower housing part of the EMC filter module is designed as a heat conducting plate.

According to yet another aspect of the transmission control module according to the invention, the coil and / or the capacitor is encapsulated in the housing.

According to the invention, a transmission control module is proposed, wherein a silicone gel, in particular adjacent to the upper housing part and / or a thermal compound, in particular adjacent to the lower housing part, is accommodated in the housing.

In an embodiment of the transmission control module according to the invention, the EMC filter module is contacted to the circuit carrier by means of the at least one stamped grid accommodated in the housing.

In a further embodiment of the transmission control module according to the invention, the housing has a fastening device, in particular the lower housing part.

Further features and advantages of the invention will become apparent from the following description of embodiments of the invention, with reference to the figures of the drawings, which show details essential to the invention, and from the claims. The individual features can be realized individually for themselves or for several in any combination in a variant of the invention.

Preferred embodiments of the invention are explained below with reference to the accompanying drawings. Show it:

1 exemplarily a circuit carrier with a recess for forming a transmission control module according to a possible embodiment of the invention;

2 an exemplary EMC filter module according to a possible embodiment of the invention;

3 an example of an upper housing part of the EMC filter module according to 2 with filter components received therein;

4 exemplarily a Getriebesteuermödulin the top view, which by means of a circuit carrier according to 1 and an EMC filter module according to 2 and 3 is formed;

5 exemplarily an underside of the transmission control module according to 4 ,

In the following description and the drawings, the same elements or similar functions are provided with the same reference numerals.

1 shows an example of a circuit carrier 1 to form a transmission control module according to the invention 2 according to z. B. 4 and 5 , An inventive transmission control module 2 is intended to form a transmission control, in particular a transmission control of a motor vehicle. The transmission control module 2 points next to the circuit carrier 1 further to form a transmission control, in particular an integrated mechatronic transmission control, required components on, for. As an electronic control system and / or power electronics, sensors, connectors, etc.

The circuit carrier 1 is designed in particular as a printed circuit board, for. B. as FR-4 circuit board, and provided, an electronic control unit of the transmission control module 2 to connect to other components of a transmission control in a known manner, for. B. to sensors, valves, connectors, etc.

The circuit carrier 1 , which is formed in particular as a rigid or at least partially rigid circuit board, has z. B. strip conductors, which are arranged to be suitable for networking the control electronics. The circuit carrier 1 is also intended to filter components for EMC suppression (EMC: electromagnetic compatibility) of the transmission control module 2 ie, in particular coils and capacitors, which are intended to suppress unwanted narrowband interference and / or broadband interference, which z. B. of switching processes or on the part of the microprocessors.

To save the relatively large components for EMC filtering space saving on the circuit board 1 to be able to arrange is in the circuit carrier 1 according to the invention a recess 3 educated, 1 , The recess 3 which is in particular a passage opening is z. B. an opening in the circuit board or the circuit board 1 with closed peripheral edge, which the circuit carrier 1 opposite a recess 3 gives a higher stability with open peripheral edge.

Furthermore, the invention provides to summarize the EMC filter components provided for filtering to form an independent module.

For this purpose, according to the invention, a separate EMC filter module 4 formed, which receives and protects the EMC filter components, 2 and 3 ,

The EMC filter module according to the invention 4 has the intended for filtering EMC filter components 5 . 6 on, in particular at least one coil 5 and at least one capacitor 6 , which together form an LC element or cooperate for suppression. The at least one coil 5 and the at least one capacitor 6 are to form an EMC filter module 4 in a common housing 7 received, which in this case in particular as a box-shaped two-piece housing 7 with a housing lower part 8th and an upper housing part 9 is formed, wherein between the housing base 8th and housing top 9 z. B. a seal is inserted to those in the housing 7 recorded EMC filter components 5 . 6 against z. B. to protect penetrating oil. Housing bottom 8th and / or upper housing part 9 can z. B. trough-shaped to the EMC filter components 5 . 6 absorb or encapsulate each other when connected.

The lower housing part 8th is according to the invention, for example, a metallic lower part, for. B. an aluminum element, for. B an aluminum die-cast element, which allows a good heat dissipation. The upper housing part 9 is for example a plastic shell, which is inexpensive and stable to produce.

For holding the EMC filter components 5 . 6 has a housing element 8th respectively. 9 , in this case z. B. the upper housing part 9 , z. B. at the EMC filter components 5 . 6 Housing interior to be facing on a shape which with the shape of the male EMC filter components 5 . 6 corresponds, for. B. such that the EMC filter components 5 . 6 through the corresponding shapes when connecting housing upper part 9 and housing base 8th to a housing 7 are fixed positionally stable, and / or in the housing element 8th respectively. 9 stable in position can be arranged or pre-fixed.

According to the invention z. B. provided, the EMC filter components 5 . 6 in the case 7 to shed, such that the EMC filter components 5 . 6 are protected against especially strong vibrations and vibrations. In the case 7 can in this case, in particular z. B. at the to Housing top 9 adjacent side, for example, be introduced a silicone gel. In the case 7 can hereby also z. B. a thermal compound, in particular z. B. at the to the lower housing part 8th adjacent side, be included. The lower housing part 8th is here according to the invention z. B. in particular for the cooling of the EMC filter module 4 educated. For example, is a bottom of the housing base 8th designed as a heat conducting plate ( 5 ), which is intended to rest against a transmission plate.

The EMC filter module 4 also has a Ankontaktiervorrichtung 10 which is intended, the EMC filter components 5 . 6 with the circuit carrier 1 electrically connect. These are in the case 7 for the formation of Ankontaktiervorrichtung 10 in particular one or more stamped grids 11 arranged, in this case z. B. in the upper housing part 9 integrated. By means of the punched grid 11 can be a cost Ankontaktierungsvorrichtung 10 form, which in a simple way with the circuit carrier 1 is connectable. The punched grid 11 are z. B. in the upper housing part 9 embedded, z. B. in a plastic material, for. B. partially encapsulated or otherwise recorded. It is also conceivable, the punched grid 11 in the housing lower part 8th to arrange. The ends of the punched grid 11 are for electrical Ankontaktierung in particular from the housing 7 led out.

The EMC filter components 5 . 6 are according to the invention with their respective electrical connection elements 12 , z. B. connecting wires ( 3 ), directly with the punched bars 11 permanently connected, z. B. by laser or resistance welding, bringing the EMC filter components 5 . 6 cost-effective and highly automated to the stamped grid 11 are contactable. After the Ankontaktierung z. B. the upper housing part 9 with the housing lower part 8th , in particular under insertion of the seal, permanently connected, whereby a preferably media-tight housing 7 is formed and the EMC filter module 4 especially completed.

According to the invention, the EMC filter module is provided 4 in the recess 3 ( 1 . 4 ), which for receiving the EMC filter module 4 in the circuit carrier 1 is formed. By such an arrangement in which the EMC filter module 4 in particular z. B. by the circuit carrier 1 extends, a space-saving arrangement of the EMC filter components 5 . 6 be achieved.

That in the recess 3 arranged EMC filter module 4 as well as the recess 3 preferably have mutually corresponding dimensions. This allows the EMC filter module 4 z. B. by the circuit carrier 1 be supported against lateral slipping. Furthermore, the EMC filter module 4 z. B. a projection or z. B. have a projecting edge, which acts as a contact element and z. B. slipping through the recess 3 , z. B. for the purpose of prefixing prevented.

The EMC filter module 4 is in particular with its housing 7 in the recess 3 arranged, in particular such that the housing 7 from the wall of the recess 3 is embraced. For this purpose, the housing 7 and the recess 3 in particular corresponding dimensions. An arrangement according to the invention z. B. provided such that the EMC filter module 4 together with other components of the transmission control module, 5 , z. B. forms a common contact surface for a transmission plate, in particular by means of the bottom of the housing lower part 8th , The Ankontaktiervorrichtung 10 is z. B. for the purpose of Ankontaktierung outside the recess 3 arranged.

The EMC filter module 4 indicates the permanent arrangement on the circuit carrier 1 z. B. a fastening device 13 on, in particular, for example, a device for screwing, which z. B. the EMC filter module 4 in the recess holds. By means of the fastening device 13 which z. B. integral with the housing base 8th and / or the upper housing part 9 is formed, is the EMC filter module 4 For example, attached to a valve housing or a transmission housing, such that it is permanently in the recess 3 recorded and on the circuit board 1 is arranged. Another attachment is next conceivable. After or in the course of a fortification z. B. the Ankontaktiervorrichtung 10 at a corresponding Ankontaktiervorrichtung of the circuit substrate 1 be contacted, z. B. laser welded or resistance welded or otherwise.

The fastening device 13 is for example by means of several, z. B. two extensions 14 formed, which z. B. opposite sides of the housing 7 each tower over ( 2 ), such that slipping through the recess 3 prevents and attachment outside the dimensions of the recess 3 is possible.

LIST OF REFERENCE NUMBERS

1

circuit support

2

Transmission control module

3

recess

4

EMC filter module

5

Kitchen sink

6

capacitor

7

casing

8th

Housing bottom

9

Housing top

10

Ankontaktiervorrichtung

11

lead frame

12

connecting element

13

fastening device

14

extension

Claims (10)

Transmission control module ( 2 ), comprising a circuit carrier ( 1 ) for connecting a transmission control electronics to further components, characterized in that the transmission control module ( 2 ) an EMC filter module ( 4 ), which in a recess ( 3 ) arranged to receive the EMC filter module ( 4 ) in the circuit carrier ( 1 ) is formed. Transmission control module ( 2 ) according to claim 1, characterized in that the EMC filter module ( 4 ) a housing ( 7 ), wherein the housing ( 7 ) in the recess ( 3 ) is arranged. Transmission control module ( 2 ) according to one of the preceding claims, characterized in that in the housing ( 7 ) at least one punched grid ( 11 ) for forming a Ankontaktiervorrichtung ( 10 ) for the EMC filter module ( 4 ) is arranged, in particular in the upper housing part ( 9 ). Transmission control module ( 2 ) according to one of the preceding claims, characterized in that in the housing ( 7 ) of the EMC filter module ( 4 ) at least one coil ( 5 ) and at least one capacitor ( 6 ) are arranged, which cooperate for the purpose of interference suppression, wherein the coil ( 5 ) and the capacitor ( 6 ) electrically conductive with the stamped grid ( 11 ) are connected, in particular by means of connecting wires ( 12 ) are welded to it. Transmission control module ( 2 ) according to one of the preceding claims, characterized in that the lower housing part ( 8th ) is made of metal and / or the upper housing part ( 9 ) is made of plastic. Transmission control module ( 2 ) according to one of the preceding claims, characterized in that the lower housing part ( 8th ) of the EMC filter module ( 4 ) is designed as a heat conducting plate. Transmission control module ( 2 ) according to one of the preceding claims, characterized in that the coil ( 5 ) and / or the capacitor ( 6 ) in the housing ( 7 ) is shed. Transmission control module ( 2 ) according to one of the preceding claims, characterized in that in the housing ( 7 ) a silicone gel, in particular adjacent to the upper housing part ( 9 ) and / or a thermal compound, in particular adjacent to the housing lower part ( 8th ). Transmission control module ( 2 ) according to one of the preceding claims, characterized in that the EMC filter module ( 4 ) by means of the housing ( 7 ) received at least one punched grid ( 11 ) on the circuit carrier ( 1 ) is contacted. Transmission control module ( 2 ) according to one of the preceding claims, characterized in that the housing ( 7 ) a fastening device ( 13 ), in particular the lower housing part ( 8th ).

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