Electronic assemblies for hybrid or electric vehicles, particularly electronic power assemblies
The use of a flexible second printed circuit board with a coupling and gripping region, along with alignment and retaining devices, addresses the challenge of complex assembly in hybrid and electric vehicles by enabling easy and compact electrical connections.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- ROBERT BOSCH GMBH
- Filing Date
- 2023-05-09
- Publication Date
- 2026-07-03
AI Technical Summary
Existing electronic assemblies in hybrid and electric vehicles face challenges in efficiently and easily coupling printed circuit boards with electronics units due to inaccessible or difficult-to-access plug-in connectors, leading to complex assembly processes and increased board size.
A flexible second printed circuit board with a coupling region and gripping region is used to facilitate easy electrical connection by inserting through a hole in the first printed circuit board, allowing access from the top side, combined with a centering device for alignment and a retaining device for secure insertion.
Enables efficient, compact, and easy assembly of electronic assemblies by allowing plug-in connections from the top side, reducing complexity and board size while ensuring precise alignment and electrical contact.
Smart Images
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Abstract
Description
Technical Field
[0001] The present invention relates to an electronic assembly, in particular an electronic power assembly, for a hybrid vehicle or an electric vehicle, having the features of the preamble of independent claim 1.
Background Art
[0002] In a hybrid vehicle or an electric vehicle, an inverter structure and a converter structure including a commutation circuit composed of an intermediate circuit capacitor and a half bridge, which are formed, for example, in a power module, are used. For example, an inverter for providing a phase current for an electric machine is used for the operation of the electric machine.
[0003] Regarding this, the power module is controlled via a printed circuit board that is in conductive contact with the power module.
Summary of the Invention
[0004] The present invention proposes an electronic assembly, in particular an electronic power assembly, for a hybrid or electric vehicle. This electronic assembly includes a first printed circuit board having a top surface and a bottom surface opposite to the top surface, on which plug-in connectors for electrical contacts of the first printed circuit board are arranged. The electronic assembly further includes an electronics unit, in particular a power electronics unit, which is located on the underside of a first printed circuit board and is electrically contacted by a flexible second printed circuit board, the flexible second printed circuit board including a coupling region having a plug-in region, the plug-in region of the flexible second printed circuit board being plugged into a plug-in connector of the first printed circuit board in the plug-in direction, thereby making electrical contact between the electronics unit and the first printed circuit board, the plug-in connector of the first printed circuit board being located on the underside of the first printed circuit board, and the coupling region of the flexible second printed circuit board including at least one gripping region, the gripping region protruding beyond the plug-in region in the plug-in direction, the gripping region protruding from the underside of the first printed circuit board to the upper surface of the first printed circuit board through a hole in the first printed circuit board. [Advantages of the invention] Compared to the prior art, the electronic assembly according to the present invention has the advantage that the first printed circuit board can be coupled and electrically contacted with an electronics unit particularly easily and efficiently. In this regard, the electronics unit is electrically contacted with the first printed circuit board via a flexible second printed circuit board. In this electronic assembly, it is advantageous that this can be done on the lower side of the first printed circuit board facing the electronics unit. It is advantageous that the insertion area of the flexible second printed circuit board can be inserted into the insertion connector of the first printed circuit board located on the lower surface of the first printed circuit board. The coupling area of the flexible second printed circuit board can also be gripped on the upper side of the first printed circuit board by a gripping area that protrudes from the lower surface to the upper surface of the first printed circuit board through a hole in the first printed circuit board. Thus, the insertion area of the flexible second printed circuit board can be inserted into the insertion connector of the first printed circuit board located on the lower surface of the first printed circuit board by pulling the gripping area on the upper side of the first printed circuit board. The plug-in area and plug-in connector are located between the first printed circuit board and the electronics unit, and are either inaccessible and invisible, or difficult to access and therefore difficult to see. Nevertheless, the gripping area on the top side of the first printed circuit board allows the plug-in area to be inserted into the plug-in connector. Thus, a "blind fit" of the plug-in area into the plug-in connector is possible. The coupling area containing the plug-in area is already aligned with the plug-in connector by a hole in the first printed circuit board. Therefore, the plug-in area can be inserted into the plug-in connector by pulling the gripping area away from the top surface of the first printed circuit board. It is advantageous that the process of inserting the plug-in area into the plug-in connector can be performed from the top side of the first printed circuit board, even though the plug-in plug and plug-in connector are located on the bottom side of the first printed circuit board. The top side of the printed circuit board is clearly more accessible for this process. This process cannot be performed directly on the bottom side of the first printed circuit board because the electronics unit makes access difficult or prevents it.In other words, a further advantage is that the plug-in connector can be positioned on the underside of the first printed circuit board, and the plug-in area of the flexible second printed circuit board can be inserted from the underside of the first printed circuit board, allowing for a compact electronic assembly. In this case, there is no need to guide the plug-in area of the flexible second printed circuit board to the top side of the first printed circuit board by passing through or beside the first printed circuit board in order to insert it into the plug-in connector on the top side of the first printed circuit board. Thus, it is advantageous that the area of the first printed circuit board is reduced, and the first printed circuit board can be formed compactly.
[0005] Further advantageous embodiments and variations of the present invention are made possible by the features presented in the dependent claims. According to one advantageous exemplary embodiment, at least two gripping regions are formed on a flexible second printed circuit board, and the plug-in region and plug-in connector of the flexible second printed circuit board are intended to be positioned between the gripping regions of the second printed circuit board. For example, the plug-in region can be plugged straight into the plug-in connector by two gripping regions that each protrude from the lower surface of the first printed circuit board to the upper surface of the first printed circuit board through a hole in the first printed circuit board. The coupling region may be gripped by both gripping regions on either side of the plug-in region and plug-in connector and pulled away from the upper surface of the first printed circuit board, thereby plugging the plug-in region into the plug-in connector.
[0006] According to one advantageous exemplary embodiment, the insertion region and / or gripping region are intended to be formed as rigid regions of a flexible second printed circuit board. Thus, the gripping region and the insertion region are rigidly coupled to each other, and the direction in which the insertion region is inserted into the plug-in connector corresponds to the direction in which the coupling region is pulled by the gripping region. The insertion region can thus be reliably and well aligned on the lower side of the first printed circuit board by the gripping region on the upper side of the first printed circuit board and inserted into the plug-in connector.
[0007] According to one advantageous exemplary embodiment, a centering device is positioned between a first printed circuit board and an electronics unit, and a flexible second printed circuit board is guided through a centering opening in the centering device, particularly in the insertion direction, thereby aligning the insertion area of the flexible second printed circuit board, in which case at least one centering element is formed in the centering device, the centering element is in contact with the first printed circuit board, and the first printed circuit board is intended to be aligned with the centering device via the centering element. It is advantageous that the centering device can ensure that the coupling area of the flexible second printed circuit board is well positioned relative to the first printed circuit board and the electronics unit. The centering opening in the centering device ensures that the insertion area is correctly positioned and aligned with the plug-in connector in the insertion direction. The centering element aligns the first printed circuit board, and therefore the plug-in connector on the underside of the first printed circuit board, with respect to the insertion area of the flexible second printed circuit board.
[0008] According to one advantageous exemplary embodiment, the centering element is formed as a pin, which is intended to protrude through an alignment opening formed in the first printed circuit board. Thus, when the first printed circuit board is mounted, for example, on a centering device, the centering element can align it with respect to the centering device and the insertion area of the flexible second printed circuit board.
[0009] According to one advantageous exemplary embodiment, the centering device is intended to be formed as a plate, in particular as a support plate for the first printed circuit board. Thus, the centering device serves, on the one hand, as a support plate for the first printed circuit board, and on the other hand, to align the insertion area of the flexible second printed circuit board with respect to the first printed circuit board and therefore the insertion connector of the first printed circuit board.
[0010] According to one advantageous exemplary embodiment, a retaining device for holding and aligning a coupling region of a flexible second printed circuit board is intended to be formed in the electronics unit. This retaining device is advantageous because it allows the coupling region of the flexible second printed circuit board to be aligned and held toward the plug-in connector before the plug-in region is plugged into the plug-in connector.
[0011] According to one advantageous exemplary embodiment, the coupling region of a flexible second printed circuit board is held by a retaining device in a first position and aligned in the insertion direction, and the coupling region of the flexible second printed circuit board is intended to be released from the retaining device by pulling the gripping region in the insertion direction. That is, the coupling region may be aligned in the first position to position a centering device on an electronics unit, and when the centering device is positioned on an electronics unit, the coupling region of the flexible second printed circuit board is passed through a centering opening in the centering device.
[0012] According to one advantageous exemplary embodiment, the retaining device includes a first retaining portion and a second retaining portion, separated by a gap, and a coupling region of a flexible second printed circuit board can be sandwiched in the gap between the first and second retaining portions, so that the coupling region is held by the retaining device and aligned in the insertion direction. In this way, a retaining device is provided that aligns the coupling region toward a centering opening in a centering device and toward a plug-in connector before the plug-in region is plugged into a plug-in connector. In this case, when the gripping portion is pulled, the coupling region of the flexible second printed circuit board is pulled out from the gap between the first and second retaining portions, and the plug-in region can then be plugged into the plug-in connector. Thus, once the plug-in region is plugged into the plug-in connector, the retaining device no longer holds the coupling region.
[0013] According to one advantageous exemplary embodiment, a mating element is formed on a first retaining portion and / or a second retaining portion, the mating element protruding into the gap, in which case a mating opening complementary to the mating element is formed in the coupling region of the flexible printed circuit board, and it is intended that the mating element can be mated into this opening. The mating element is used to hold the coupling region in the retaining device, and the advantage is that it ensures that the coupling region will not come out of the retaining device except by pulling the gripping region when inserting the plug-in region into the plug-in connector.
[0014] Exemplary embodiments of the present invention are shown in the drawings and will be described in more detail below. [Brief explanation of the drawing]
[0015] [Figure 1] This figure shows an exemplary embodiment of an electronic assembly in which a plug-in area of a flexible second printed circuit board is plugged into a plug-in connector, and the coupling area of the flexible second printed circuit board is not held by a retaining device. [Figure 2] This is a cross-sectional view of an exemplary embodiment of the electronic assembly shown in Figure 1. [Figure 3] This figure shows one exemplary embodiment of an electronics unit equipped with a retaining device, a flexible second printed circuit board, and a plug-in connector, in which the plug-in area of the flexible second printed circuit board is not plugged into the plug-in connector, and the coupling area of the flexible second printed circuit board is held by the retaining device. [Modes for carrying out the invention]
[0016] The electronic assembly 1 according to the present invention is applicable in a wide variety of ways and can be used, for example, as an inverter or converter in automotive technology. For example, this electronic assembly can be formed not only as an inverter, also called an inverse converter, but also for the operation of, for example, electromechanical devices in hybrid vehicles or electric vehicles.
[0017] Figure 1 shows one exemplary embodiment of electronic assembly 1. Figure 2 shows a cross-sectional view attributable to the exemplary embodiment of the electronic assembly based on Figure 1. Electronic assembly 1 includes a first printed circuit board 10 having a top surface 11 and a bottom surface 12 opposite to the top surface 11. Electronic assembly 1 further includes a flexible second printed circuit board 30 and an electronics unit 20. The first printed circuit board 10 is used, for example, to control the electronics unit 20. The flexible second printed circuit board 30 is in electrical contact with both the first printed circuit board 10 and the electronics unit 20. Conductor paths of the flexible second printed circuit board 30 are used, for example, to transmit signals for controlling the electronics unit 20.
[0018] The electronics unit 20 may be, for example, a power electronics unit. In this exemplary embodiment, the electronics unit 20 includes a molded housing. A carrier substrate is disposed within the housing, for example, and electrical and / or electronic components are disposed on the carrier substrate. The carrier substrate may be, for example, a circuit board, or in this exemplary embodiment, a DBC (Direct Bonded Copper) substrate. However, the carrier substrate may be, for example, an AMB (Active Metal Brazed) substrate, an IMS (Insulated Metal Substrate), a Printed Circuit Board (PCB), or another substrate suitable for a power module. Various electrical and / or electronic components may be disposed on the carrier substrate, such as power semiconductors, such as field-effect transistors like MIS-FETs (Metal Insulated Semiconductor Field Effect Transistors), IGBTs (insulated-gate bipolar transistors), and power MOSFETs (metal oxide semiconductor field-effect transistors), and / or diodes, such as rectifier diodes. Passive components such as resistors or capacitors may also be further disposed on the carrier substrate as electrical and / or electronic components. The carrier substrate may further include conductive paths not shown in the figure. The conductive paths of the carrier substrate may be formed as conductive surfaces capable of carrying high currents, as in this exemplary embodiment. Electrical and / or electronic components may be conductively coupled to each other or to further electrical and / or electronic elements not shown in the figure located outside the electronics unit 20, for example, by soldering or sintering, via conductive paths of the carrier substrate, bonding wires, or other suitable conductive contact elements. The electronics unit 20 has connections that electrically contact the electronics unit 20 with a flexible second printed circuit board 30.
[0019] The electronic assembly 1 may further include a cooler, not shown in the figure, which cools the electronic unit 20. The cooler may be made of a material with good thermal conductivity, such as aluminum or copper. The cooler may be formed, for example, as a plate. The cooler may have structures to improve heat dissipation, such as ribs, pins, or channels.
[0020] The electronic assembly 1 further includes a first printed circuit board 10. The first printed circuit board 10 has an upper surface 11 and a lower surface 12 opposite to the upper surface 11. The first printed circuit board 10 is positioned within the electronic assembly 1 such that its lower surface 12 faces the electronics unit 20. The first printed circuit board 10 may be, for example, a rigid printed circuit board, such as a printed circuit board of grade FR4 or higher, i.e., a printed circuit board made of glass fiber reinforced epoxy resin. However, the first printed circuit board 10 may be an HDI (High Density Interconnect) printed circuit board, an LTCC (Low Temperature Cofired Ceramics) printed circuit board, or another suitable rigid or flexible printed circuit board. The first printed circuit board 10 includes, for example, one or more electrical and / or electronic components, also not shown in the figure, which are interconnected by conductive paths not shown in the figure, and together these electrical and / or electronic components constitute, for example, a control circuit for the electronics unit 20.
[0021] A plug-in connector 40 is located on the first printed circuit board 10. The plug-in connector 40 is provided for electrical contact with the first printed circuit board 10. For this purpose, a plug-in area 32 is pluggable into the plug-in connector 40. Within the plug-in connector 40 are numerous contact points provided for contact with the conductive paths of the flexible second printed circuit board 30. The contact points within the plug-in connector 40 are used for electrical contact with the first printed circuit board 10. When the plug-in area 32 of the second flexible printed circuit board 30 is plugged into the plug-in connector 40, an electrical coupling is established between the contact points within the plug-in connector 40 and the conductive paths of the second flexible printed circuit board 30. In this exemplary embodiment, the printed circuit board 10 is formed as a control circuit provided for controlling an electronics unit 20. For this purpose, the contact points within the plug-in connector 40 of the printed circuit board 10 are electrically coupled to the connections of the electronics unit 20 by the flexible second printed circuit board 30. The plug-in connector 40 is located on the lower surface 12 side of the first printed circuit board 10. The plug-in connector 40 faces the electronics unit 20. The plug-in connector 40 is fixed to the lower surface 12 of the first printed circuit board 10. The plug-in connector 40 protrudes from the lower surface 12 of the first printed circuit board toward the electronics unit 20. The plug-in connector 40 has a housing opening facing the electronics unit 2 in order to accommodate the plug-in area 32 of the second flexible printed circuit board 30. The plug-in connector 40 may be formed, for example, as an FPC plug-in connector.
[0022] The electronic assembly 1 further includes a flexible second printed circuit board 30. The flexible second printed circuit board 30 may be formed, for example, as an FPC (flexible printed circuit), and in particular as an FPC connector. The flexible second printed circuit board 30 has considerable flexibility, for example, due to its plasticity. The flexible second printed circuit board 30 is used to connect the electronic assembly. Here, the electronic assembly and the electronics unit 20, which are placed on the first printed circuit board 10, are connected by the second flexible printed circuit board 30. The flexible second printed circuit board 30 may include, for example, a printed circuit, which is formed on a flexible plastic support, such as polyimide, Mylar, nylon, or polyester film. Copper may be used as the conductive material. Contact areas may be gold-plated, for example. The flexible second printed circuit board 30 has a region placed on the electronics unit 20, in which the flexible second printed circuit board 30 is electrically coupled to the connection portion of the electronics unit 20. The flexible second printed circuit board 30 can be welded, for example, to the connection points of the electronics unit 20.
[0023] The flexible second printed circuit board 30 further has a coupling region 31, by which the flexible second printed circuit board 30 is electrically coupled to the first printed circuit board 10. The coupling region 31 of the second flexible printed circuit board 10 includes an insertion region 32 and at least one gripping region 33. In the exemplary embodiment shown in the figure, the coupling region includes one insertion region 32 and two gripping regions 33. The insertion region 32 is arranged between both gripping regions 33. The insertion region 32 is formed for electrical contact between the flexible second printed circuit board 30 and the insertion connector 40 of the first printed circuit board 10. For this purpose, contact portions are formed in the insertion region 32 of the flexible second printed circuit board 30. The contact portions of the insertion region 32 of the flexible second printed circuit board 30 are, for example, the ends of conductor paths within the flexible second printed circuit board 30. The insertion region 32 of the flexible second printed circuit board 30 is inserted into the insertion connector 40 of the first printed circuit board 10 in the insertion direction R. Thereby, the contact portions of the insertion region 32 are in conductive contact with the contact portions of the insertion connector 40, and thus the flexible second printed circuit board 30 is conductively coupled to the first printed circuit board 10. The insertion direction R represents the direction in which the insertion region 31 of the flexible second printed circuit board 30 is inserted into the insertion connector 40. The insertion direction R is, for example, perpendicular to the first printed circuit board 10.
[0024] The insertion area 32 and the gripping area 33 are, for example, each formed planarly and extending planarly within the same plane. The insertion area 32 and the gripping area 33 extend in the insertion direction R. The insertion area 32 is, for example, formed substantially rectangularly. The gripping areas 33 are, for example, each formed in a tongue shape. The insertion area 32 and the gripping area 33 are formed in the same plane, and the insertion area 32 is located in the plane between the two gripping areas 33. The gripping area 33 extends beyond the insertion area 32 in the insertion direction R. A structure may be formed at the end of the gripping area 33 located on the upper surface 11 side of the first printed circuit board 10 to facilitate gripping the gripping area 33. In the exemplary embodiment shown herein, each of the gripping areas 33 has a hole formed therein that a gripping tool can engage with. The coupling area 31 having the insertion area 32 and the gripping area 33 is, for example, formed substantially fork-shaped.
[0025] The coupling region 31, which has an insertion region 32 and a gripping region 33, is one end of the flexible second printed circuit board 30, at which end the flexible printed circuit board 30 is coupled to the first printed circuit board 10. The coupling region 31, which has the insertion region 32 and the gripping region 33, is formed as a rigid region of the flexible second printed circuit board 30. The flexible second printed circuit board 30 is made rigid in the coupling region 31 and is therefore formed rigidly in the coupling region 31. The insertion region 32 is inserted into a plug connector 40 located on the lower surface 12 of the first printed circuit board 10 and is therefore located on the lower surface 12 side of the first printed circuit board 10. The gripping region 33 protrudes from the upper surface 11 of the first printed circuit board 10 through a hole 13 in the first printed circuit board 10, in the insertion direction R, next to the plug connector 40. One hole 13 is provided in the first printed circuit board 10 for each gripping region 33. In the exemplary embodiment shown herein, the printed circuit board 10 includes two holes 13 for gripping areas 33. The plug-in connector 40 is positioned between both holes 13. The holes 13 are formed, for example, as slits in the first printed circuit board 10. These slits are, for example, perpendicular to the plugging direction R and extend in the direction from which the housing for the plugging area 32 in the plug-in connector 40 also extends. The gripping areas 33 protrude from the holes 13 on the upper surface 11 side of the first printed circuit board 10, and thus the gripping areas 33 can be gripped on the upper surface 11 side.
[0026] The electronic assembly 1 further includes a centering device 50. The centering device 50 is disposed between the first printed circuit board 10 and the electronics unit 20. The centering device 50 is formed, for example, in a plate shape. The centering device 50 can also serve, for example, as a support plate for the first printed circuit board 10. The flexible second printed circuit board 30 passes through the centering device 50. For this purpose, a centering port 51 is formed in the centering device 50. The centering port 51 is formed, for example, in a slit shape. The flexible second printed circuit board 30 passes through the centering port 51 in the centering device 50, particularly in the insertion direction R. By the flexible second printed circuit board 30 passing through the centering port 51 in the insertion direction R, the bonding region 31 of the flexible second printed circuit board 30 is also aligned in the insertion direction R. The centering device 50 may include an accessory element 55. The accessory element 55 is disposed, for example, within the centering device 50 formed as a plate, and the centering port 51 is formed within the accessory element 55. The centering port 50 can be formed, for example, at least partially in a funnel shape and can become narrower in the insertion direction R as it moves away from the electronics unit 2. Thus, the flexible second printed circuit board 30 can be inserted particularly well and easily into the centering port 51 of the centering device 50 from the side facing the electronics unit 2 of the centering device 50. A protrusion (not shown in the drawings) can be further provided beside the centering port 51, and this protrusion serves to guide and align the flexible second printed circuit board 30 in the insertion direction R.
[0027] The first printed circuit board 10 is aligned by a centering device 50. During this alignment, the first printed circuit board 10 is positioned such that the flexible printed circuit board 30 simultaneously protrudes through a centering opening 51 in the centering device 50 and a hole 13 in the first printed circuit board 10. The centering device 50 has, for example, a centering element 52 formed as a pin. The centering element 52 protrudes from the centering device 50 toward the first printed circuit board 10 in the insertion direction R. The centering element 52 of the centering device 50 helps to align the first printed circuit board 10 with respect to the centering device 50. The centering element 52 can protrude, for example, through an alignment opening 14 in the first printed circuit board 10. Therefore, the first printed circuit board 10 can be aligned by the centering element 52 and thus by the centering device 50.
[0028] The centering device 50 is further aligned with respect to the electronics unit 20. For this purpose, the electronic assembly 1 may include further components, not shown in the figure, that establish the coupling between the centering device 50 and the electronics unit 2. That is, the electronics unit 2 can be coupled to the centering unit 50, for example, via a cooler and / or housing, thereby being aligned with respect to the centering unit 50.
[0029] The electronics unit 20 may further include a retaining device 60. The retaining device 60 is formed to hold a flexible second printed circuit board 30 and align it in the insertion direction R. The retaining device 60 aligns the coupling region 31 of the flexible second printed circuit board 30 in the insertion direction R so that the coupling region 31 protrudes through the centering opening 51 in the centering device 50 and the hole 13 in the first printed circuit board 10. Within the retaining device 60, the coupling region 31 of the flexible second printed circuit board 30 can be clipped, thereby fixing it to the electronics unit 20 and aligning it in the insertion direction R. When the centering device 50 and the first printed circuit board 10 are mounted above the electronics unit 20, the coupling region 31 of the flexible second printed circuit board 30 passes through the centering opening 51 of the centering device 50 and the hole 13 in the first printed circuit board 10. When the centering device 50 and the first printed circuit board 10 are mounted in this case, the gripping device can grip the gripping area 33 of the coupling area 31 on the upper surface 11 side of the first printed circuit board 10 and pull the coupling area 31 in the insertion direction R, thereby inserting the insertion area 32 into the plug-in connector 40. The retaining device 60 in the electronics unit 20 is formed such that when the gripping area 33 is pulled, the coupling area 31 is released from the retaining device 60 in the insertion direction R. For this purpose, the retaining device 60 may include, for example, one or more clips. The retaining device may include, for example, a first retaining portion 61 and a second retaining portion 62, as in the exemplary embodiment shown herein. The first retaining portion 61 and the second retaining portion 62 protrude, for example, in the insertion direction R. The first retaining portion 61 and the second retaining portion 62 are separated from each other by a gap 63. The insertion area 31 of the flexible second printed circuit board 30 is partially located in the gap 63 between the first retaining portion 61 and the second retaining portion 62. The insertion area 31 of the flexible second printed circuit board 30 is located, for example, between the first retaining portion 61 and the second retaining portion 62. Therefore, the coupling area 31 is held by the retaining device 60 and aligned in the insertion direction R.The first retaining portion 61 and / or the second retaining portion 62 may further have a mating element 64, such as a mating projection. A mating opening 35 complementary to the mating element 64 may further be formed within the coupling region 31 of the flexible second printed circuit board 30, into which the mating element 64 can be fitted. The mating element 64 protrudes, for example, into the gap 63. When the coupling region 31 is fitted, the coupling region 31 is aligned in the insertion direction R. By pulling the gripping region 33 in the insertion direction R, the coupling region 31 is released from mating within the retaining device 60, and the insertion region 32 is inserted into the plug-in connector 40.
[0030] Of course, further exemplary embodiments and mixed forms of the illustrated exemplary embodiments are possible.
Claims
1. Electronic assemblies (1) for hybrid or electric vehicles, in particular electronic power assemblies, A first printed circuit board (10) having an upper surface (11) and a lower surface (12) opposite to the upper surface (11), wherein a plug connector (40) for electrical contact of the first printed circuit board (10) is provided, An electronics unit (20), in particular a power electronics unit, is located on the lower surface (12) side of the first printed circuit board (10), The present invention further includes an electronics unit (20) which is electrically contacted by a flexible second printed circuit board (30), In an electronic assembly (1), the flexible second printed circuit board (30) includes a coupling region (31) having an insertion region (32), and the insertion region (32) of the flexible second printed circuit board (30) is inserted in the insertion direction (R) into the insertion connector (40) of the first printed circuit board (10), thereby the electronics unit (20) is in electrical contact with the first printed circuit board (10), The plug-in connector (40) of the first printed circuit board (10) is located on the lower surface (12) side of the first printed circuit board (10), and the coupling region (31) of the flexible second printed circuit board (30) includes at least one gripping region (33), the gripping region (33) protruding beyond the plug-in region (32) in the plug-in direction (R), In this regard, the electronic assembly (1) is characterized in that the gripping region (33) protrudes from the lower surface (12) of the first printed circuit board (10) to the upper surface (11) of the first printed circuit board (10) through a hole (13) in the first printed circuit board (10).
2. The electronic assembly according to claim 1, characterized in that at least two gripping regions (33) are formed on the flexible second printed circuit board (30), and the insertion region (32) and the insertion connector (40) of the flexible second printed circuit board (30) are arranged between the gripping regions (33) of the second printed circuit board (32).
3. The electronic assembly according to claim 1, characterized in that the insertion region (32) and / or the gripping region (33) are formed as rigid regions of the flexible second printed circuit board (30).
4. The electronic assembly according to claim 1, characterized in that a centering device (50) is disposed between the first printed circuit board (10) and the electronics unit (20), the flexible second printed circuit board (30) is guided through the centering opening (51) of the centering device (50), particularly in the insertion direction (R), thereby aligning the insertion area (32) of the flexible second printed circuit board (30), in which case at least one centering element (52) is formed on the centering device (50), the centering element (52) is in contact with the first printed circuit board (10), and the first printed circuit board (10) is aligned with the centering device (50) via the centering element (52).
5. The electronic assembly according to claim 4, characterized in that the centering element (52) is formed as a pin (52), and the pin (52) protrudes through an alignment opening (14) formed in the first printed circuit board (10).
6. The electrical assembly according to claim 4, characterized in that the centering device (50) is formed as a plate, and in particular as a support plate for the first printed circuit board (10).
7. The electronic assembly according to claim 1, characterized in that a holding device (60) for holding and aligning the bonding region (31) of the flexible second printed circuit board (30) is formed on the electronics unit (20).
8. The electronic assembly according to claim 7, characterized in that the coupling region (31) of the flexible second printed circuit board (30) is held by the holding device (60) in the first position and aligned in the insertion direction (R), and the coupling region (31) of the flexible second printed circuit board (30) can be released from the holding device (60) by pulling the gripping region (33) in the insertion direction (R).
9. The electronic assembly according to claim 7, characterized in that the holding device (60) includes a first holding portion (61) and a second holding portion (62), the first holding portion (61) and the second holding portion (62) are separated by a gap (63), the coupling region (31) of the flexible second printed circuit board (30) can be sandwiched in the gap (63) between the first holding portion (61) and the second holding portion (62), thereby the coupling region (31) is held by the holding device (60) and aligned in the insertion direction (R).
10. The electronic assembly according to claim 9, characterized in that a fitting element (64) is formed on the first holding portion (61) and / or the second holding portion (62), the fitting element (64) protrudes into the gap (63), and in this case, a fitting opening (35) complementary to the fitting element (64) is formed in the coupling region (31) of the flexible second printed circuit board (30), and the fitting element (64) can be fitted into the fitting opening (35).