Source: https://patents.google.com/patent/DE102015216419A1/en
Timestamp: 2019-12-12 14:08:06
Document Index: 1463730

Matched Legal Cases: ['arts 4', 'arts 4', 'arts 4', 'art 9', 'arts 4', 'arts 6', 'art 8', 'art 8', 'arts 4', 'arts 4', 'art 4']

DE102015216419A1 - Electronic device with a housing with a printed circuit board arranged therein - Google Patents
Electronic device with a housing with a printed circuit board arranged therein
DE102015216419A1
DE102015216419A1 DE102015216419.5A DE102015216419A DE102015216419A1 DE 102015216419 A1 DE102015216419 A1 DE 102015216419A1 DE 102015216419 A DE102015216419 A DE 102015216419A DE 102015216419 A1 DE102015216419 A1 DE 102015216419A1
DE102015216419.5A
2015-08-27 Application filed by Continental Automotive GmbH filed Critical Continental Automotive GmbH
2015-08-27 Priority to DE102015216419.5A priority Critical patent/DE102015216419A1/en
2017-03-02 Publication of DE102015216419A1 publication Critical patent/DE102015216419A1/en
The invention relates to an electronic device (1) with a multi-part printed circuit board (3), the printed circuit board parts (4-9) are interconnected by means of current-carrying, flexible regions, with a supporting frame (19) around which around their flexible areas (10 -13) curved printed circuit board (3) is arranged and fixed, and with a housing (2) in which on the support frame (19) mounted circuit board (3) is fixed.
Control devices for sequence control in vehicles, in particular engine control units, must take over increasingly complex control tasks and therefore have an increasing number of electronic and electrical components that must be arranged on printed circuit boards. In order to meet this requirement, there are in addition to the use of multiple circuit boards, which then have to be connected to each other consuming electrical, also multi-part circuit boards, which are connected to each other by means of current-carrying, flexible areas that are produced for example by milling. This means a simplification of the manufacturing process, as in particular eliminates the subsequent electrical connection of multiple circuit boards.
However, since control devices in the automotive sector are exposed to high mechanical loads, in particular vibrations, it is necessary to anchor the individual printed circuit board parts well to the housing. At present, this is usually done by means of screws, which, however, entails an increased manufacturing outlay. In addition, due to power electronics components and the associated strong heating a good thermal transition from a printed circuit board part to the mostly metallic housing, which acts as a heat sink, be given.
The DE 39 36 906 A1 discloses a printed circuit board of a plurality of circuit board parts, which are interconnected via flexible areas, by means of which the circuit board parts are pivoted by bending several times around the flexible areas such that the two edge portions of the overall board to receive the plug, come to rest in the same plane. Two printed circuit board parts lying opposite one another by the repeated bending are glued to a cover or a bottom of a housing receiving the printed circuit board, wherein the cover and the floor are spread in corresponding grooves of a peripheral housing frame part. In this way, although a multi-part printed circuit board can be well mechanically and thermally coupled to the housing, but the production is complex.
The DE 10 2013 200 635 A1 also discloses a multi-part circuit board, in which on several sides of a central sub-circuit board further sub-circuit boards are connected via flexible areas, to which in turn further, smaller sub-circuit boards are connected. By appropriate bending of the flexible regions, the sub-circuit boards are positioned so that all sub-circuit boards are arranged perpendicular to the central sub-board and the smaller sub-boards come to lie next to each other, since they should be equipped with plugs and positioned in the opening of a housing. Although the restoring force of the flexible regions, the sub-circuit boards are pressed against an adjacent housing wall, when the circuit board is mounted in a housing, but this is not sufficient to vibration of the sub-circuit boards, as they occur in a motor vehicle to a high degree so they usually need to be screwed on.
The multipart circuit boards of DE 39 36 906 A1 and the DE 10 2013 200 635 A1 can of course be supplemented by further sub-circuit boards, so that for example a whole cuboid can be produced, the side walls is formed by the sub-circuit boards.
However, with increasing complexity of the multi-part circuit board, despite its advantages, the problem of an increasingly complex production of the final shape and their assembly in a housing.
It is therefore an object of the invention to design an electronic device such that a simple and cost-effective production and assembly is possible.
The object is achieved by an electronic device having a housing with a printed circuit board arranged therein according to claim 1. Advantageous further developments are specified in the subclaims.
Thus, the electronic device having a multi-part circuit board whose circuit board parts are connected to each other by means of current-carrying, flexible regions, a support frame, around which is arranged and fixed around its flexible areas printed circuit board and a housing in which mounted on the scaffold board is fixed, formed.
By the scaffold, the final shape of the multi-part circuit board can be easily manufactured by folding the individual circuit board parts around the support frame and fixing the circuit board parts thereto. It is finally possible in a simple and cost-effective manner, to insert the entire "PCB package" in the housing. The scaffold can be formed with rods, which are interconnected via respective corner connectors.
In an advantageous embodiment of the invention, the support frame for fixing the circuit board locking lugs, in which corresponding circuit board parts are locked.
The scaffold is particularly advantageous when the multi-part circuit board is completely folded around it, that is, when it has at least five circuit board parts arranged in a row, wherein the circuit board mounted on the scaffold, the respective row end circuit board parts have a smaller width than the overall circuit board wherein the sum of the row end circuit board part widths is not larger than the total circuit board width, and the row end circuit board parts are juxtaposed on the same support frame side. These can then be provided with plugs, wherein input signals via the one and output signals via the other connector are routed to or from the circuit board and thus only have to be guided in one direction over the circuit board, which leads to a simplification of the wiring.
In such closed molds, the final shape can be produced particularly efficiently by means of the scaffold according to the invention.
This also applies in particular to the case that the row end circuit board parts are equipped with contact plugs.
When the scaffold and the interior of the housing taper in at least one cross-sectional plane towards the interior of the housing, the "printed circuit board packet" is wedged in the housing so that the circuit board surfaces facing the housing walls are in good thermal contact with the housing walls for cooling purposes.
In an advantageous development, a good heat-conducting mass is arranged between a housing wall and a surface of a printed circuit board part facing this housing wall.
The printed circuit board parts can be equipped on both sides, wherein very flat components are preferably mounted on the housing walls adjacent circuit board surfaces, while higher-building components, such as capacitors or coils, are applied to the inside of the housing facing the printed circuit board surface.
If a printed circuit board part is arranged on the support frame on the side opposite the housing opening, advantageously at least one component can be applied thereto which protrudes into a cavity of the housing in order to be better cooled.
The invention will be described below with reference to an embodiment with the aid of figures. Show
1 an inventive electronic device with a scaffold,
2 the electronic device according to the invention in a cross-sectional representation,
3 and 4 the schematic representation of the production of an electronic device according to the invention, and
5 a scaffold with locking lugs and attached circuit board in cross section.
The 1 shows a perspective view of an inventive electronic device 1 in which case in a housing 2 a multipart circuit board 3 with the help of a scaffold 19 is mounted. The scaffold 19 is formed with rods which are interconnected by means of corner connecting parts and form the edges of a body with an approximately trapezoidal cross-section. In the illustrated embodiment of the 1 If the side surfaces extend approximately parallel to one another, however, in principle opposing side surfaces can also be arranged at an angle to one another.
In the illustrated embodiment, the multi-part circuit board 3 with their printed circuit board parts 4 - 9 around the scaffold 19 folded over so that two opposite sides of the scaffold 19 not covered with circuit board parts. The edge elements of the multipart circuit board 3 are as smaller circuit board parts 4 . 5 and 9 formed, with the two circuit board parts 4 and 5 at one edge of the multipart circuit board 3 and the circuit board part 9 at the other edge of the multipart circuit board 3 are connected by means of a respective flexible area. By folding around the scaffold 19 come the small circuit board parts 4 . 5 and 9 on the same side of the scaffold 19 lie and cover this page largely by mesh. After inserting the with the PCB 3 Provided scaffold 19 in the case 2 they are in the opening of the housing 2 arranged and can be provided in an advantageous manner with plugs, which are optionally provided for input and output signals or designed for high currents.
In the illustrated embodiment of the 1 the housing interior is tapered towards the housing bottom and adapted to the trapezoidal cross section of the scaffold, so when inserting the with the circuit board 3 Provided scaffold 19 in the case 2 the printed circuit board parts are pressed against the housing walls.
Advantageously, the housing walls facing surfaces of the corresponding circuit board parts 6 and 7 and optionally also of the printed circuit board part 8th be provided with a good thermal conductivity mass, so that the heat generated by power components well to the metal housing 2 can be delivered.
In an advantageous embodiment of the electronic device according to the invention 1 are on the circuit board part 8th that is the bottom of the case 2 facing, at least one higher building component 17 provided, which is inserted into a cavity of the housing in order to be able to be cooled particularly well there. The individual circuit board parts 4 - 9 are by means of flexible areas 10 - 13 interconnected, with the flexible areas 10 - 13 For example, by means of deep milling from a previously continuous circuit board may have arisen. The flexible areas 10 - 13 , on the one hand for signal transmission between the individual board parts 4 - 9 On the other hand, however, they can also be designed to guide higher currents.
The multipart circuit board 3 can be fitted on both sides with electrical and / or electronic components, with flat components 16 , which may need to be well cooled, on the surfaces of the circuit board parts facing the housing walls 4 - 9 are arranged while larger components 18 such as electrolytic capacitors or coils on the inside of the housing facing surface of a circuit board part 4 - 9 are arranged.
The 2 shows a cross-sectional view of an electronic housing with inserted scaffold with it mounted circuit board 3 and illustrates the possibility of arranging a component 17 in a housing cavity 15 ,
In the 3 and 4 the manufacturing process is shown in a schematic way. So first, a multi-part circuit board 3 around the scaffold 19 folded this, not only in one plane but also in several levels, for example, with a circuit board according to the DE 10 2013 200 635 A1 can be done. The resulting "PCB package" is then in a housing 2 inserted, wherein by an optionally provided wedge-shaped cross-sectional area, in both cross-sectional planes of the housing 2 can be provided, the printed circuit board parts are pressed well on the housing walls, so that a good mechanical and thermal contact exists, whereby on the one hand a good heat conduction and on the other hand, a good vibration resistance is given.
So that the circuit board 3 due to the restoring forces of the flexible areas 10 - 13 not again from the scaffold 19 solves are advantageously holding elements, for example in the form of locking lugs 20 as they are in the 5 are indicated, provided. Of course, any other form of fixation of the circuit board to the scaffold is possible.
DE 3936906 A1 [0003, 0005]
DE 102013200635 A1 [0004, 0005, 0031]
Electronic device ( 1 ) with - a multipart circuit board ( 3 ), whose printed circuit board parts ( 4 - 9 ) are connected to each other by means of current-carrying, flexible regions, - a scaffold ( 19 ) around that around their flexible areas ( 10 - 13 ) curved printed circuit board ( 3 ) is arranged and fixed, - a housing ( 2 ), in which the on the scaffold ( 19 ) mounted circuit board ( 3 ) is fixed.
Electronic device ( 1 ) according to claim 1, characterized in that the supporting framework ( 19 ) for fixing the circuit board ( 3 ) Latching lugs ( 20 ), in which corresponding circuit board parts ( 4 - 9 ) are locked.
Electronic device ( 1 ) according to claim 1 or 2, characterized in that the printed circuit board has at least five printed circuit board parts arranged in a row, wherein the mounted on the scaffold board, the respective Reihenendleiterplattenteile have a smaller width than the total printed circuit board, wherein the sum of the Reihenendleiterplattenteilbreiten not is larger than the total board width, and the row end board parts are adjacent to each other on the same support frame side.
Electronic device ( 1 ) according to claim 3, characterized in that the row end circuit board parts ( 4 . 5 . 9 ) are equipped with contact plugs.
Electronic device ( 1 ) according to one of the preceding claims, characterized in that the supporting framework ( 19 ) and the housing interior taper in at least one cross-sectional plane in the direction of the interior of the housing.
Electronic device ( 1 ) according to one of the preceding claims, characterized in that the housing ( 2 ) is designed as a housing cup.
Electronic device ( 1 ) according to one of the preceding claims, characterized in that between a housing wall and a housing wall facing surface of a circuit board part ( 4 - 9 ) a good thermal conductivity mass ( 14 ) is arranged.
Electronic device ( 1 ) according to one of the preceding claims, characterized in that the printed circuit board ( 3 ) on both sides with components ( 16 . 17 . 18 ) is equipped.
Electronic device ( 1 ) according to one of the preceding claims, characterized in that the housing wall opposite the housing opening at least one cavity ( 15 ), in which a on this housing wall facing printed circuit board part ( 7 ) arranged component ( 17 ) is positioned.
Electronic device ( 1 ) according to one of the preceding claims, characterized in that the supporting framework ( 19 ) is formed with rods which are interconnected via respective corner connectors.
DE102015216419.5A 2015-08-27 2015-08-27 Electronic device with a housing with a printed circuit board arranged therein Pending DE102015216419A1 (en)
DE102015216419.5A DE102015216419A1 (en) 2015-08-27 2015-08-27 Electronic device with a housing with a printed circuit board arranged therein
PCT/EP2016/069771 WO2017032729A1 (en) 2015-08-27 2016-08-22 Electronic device having a housing with a circuit board provided therein
CN201680049780.6A CN107926129A (en) 2015-08-27 2016-08-22 Electronic device with the housing for being provided with circuit board
US15/906,394 US10342152B2 (en) 2015-08-27 2018-02-27 Electronic device having a housing with a circuit board provided therein
DE102015216419A1 true DE102015216419A1 (en) 2017-03-02
ID=56741066
DE102015216419.5A Pending DE102015216419A1 (en) 2015-08-27 2015-08-27 Electronic device with a housing with a printed circuit board arranged therein
US (1) US10342152B2 (en)
CN (1) CN107926129A (en)
DE (1) DE102015216419A1 (en)
WO (1) WO2017032729A1 (en)
DE3936906A1 (en) 1989-11-06 1991-05-08 Telefunken Electronic Gmbh Housing for electronic device in motor vehicle - has frame provided by inside surface fitted with two opposing carrier plates
DE102008052243A1 (en) * 2008-10-18 2010-04-22 Carl Freudenberg Kg Protective cover for a flexible printed circuit board
EP1575344B1 (en) * 2004-03-11 2007-05-30 Siemens Aktiengesellschaft Control device
2015-08-27 DE DE102015216419.5A patent/DE102015216419A1/en active Pending
2016-08-22 WO PCT/EP2016/069771 patent/WO2017032729A1/en active Application Filing
2016-08-22 CN CN201680049780.6A patent/CN107926129A/en active Search and Examination
2018-02-27 US US15/906,394 patent/US10342152B2/en active Active
US10342152B2 (en) 2019-07-02
CN107926129A (en) 2018-04-17
WO2017032729A1 (en) 2017-03-02
US20180255659A1 (en) 2018-09-06
FR2697717A1 (en) 1994-05-06 Device for reheating electronic cards.
EP2091105A2 (en) 2009-08-19 Directly mounted electronics housing
US8582311B2 (en) 2013-11-12 Modular electronics housing
JP2005197493A (en) 2005-07-21 Circuit board assembly
US8885343B2 (en) 2014-11-11 Heat dissipation from a control unit
CN103929926B (en) 2017-04-19 Motor-drive Unit Having Heat Radiator
JP5566356B2 (en) 2014-08-06 Motor drive device
JP2005160235A (en) 2005-06-16 Joint connector