Electronic control device for vehicle and vehicle

Abstract

The utility model relates to the technical field of vehicles, in particular to an electronic control device for a vehicle, which comprises a printed circuit board provided with a first side, a second side, a first grounding area positioned on the first side and a second grounding area positioned on the second side, the shell comprises a first shell part and a second shell part which are independent from each other, the first shell part and the second shell part are assembled with each other to form an accommodating cavity suitable for accommodating the printed circuit board, the first shell part is in conductive contact with the first grounding area, and the second shell part is in conductive contact with the second grounding area; and a first electromagnetic shield, independent of the housing, extending from the first housing part to the second housing part and at least partially surrounding the printed circuit board. The utility model further relates to a vehicle. The first shell part and the second shell part are in conductive contact with the first grounding area and the second grounding area of the printed circuit board respectively, a good grounding path between the printed circuit board and the shell is formed, and the overall electromagnetic shielding effect is remarkably improved by combining the independently-arranged first electromagnetic shielding part.

Description

Technical Field

[0001] This utility model relates to the technical field of vehicles, specifically to an electronic control device for vehicles and a corresponding vehicle. Background Technology

[0002] With the continuous development of the automotive industry and the widespread application of electronic technology, modern automobiles integrate an increasing number of electronic control devices, such as body controllers, in-vehicle entertainment systems, and intelligent driving assistance systems. These electronic control devices are based on microelectronics technology and utilize highly integrated printed circuit boards (PCBs) to implement various electronic control functions. Therefore, PCBs typically integrate a large number of electronic components, such as microcontrollers, memory, and interface circuits, which are connected by wiring to form a complete circuit system. To improve the reliability and stability of the circuit system, PCBs and electronic components are usually housed in a mechanical metal casing to protect them from external environmental influences such as vibration, impact, dust, and humidity. However, as the functions of electronic control devices become increasingly complex, the density of electronic components on PCBs continues to increase, making electromagnetic interference (EMI) a growing concern. In this case, various electronic components on the PCB generate electromagnetic radiation, interfering with adjacent circuits and, in severe cases, causing circuit malfunction or even damage. Meanwhile, various external electromagnetic interference sources exist in the vehicle environment, such as engine ignition systems, transmission control, and wireless communications. The electromagnetic radiation they generate can couple into the electronic control unit, interfering with the printed circuit board. Therefore, it is necessary to effectively shield the printed circuit board and its electronic components to reduce electromagnetic interference and ensure the electromagnetic compatibility (EMC) of automotive electronic control units.

[0003] Therefore, there is still a real need for continued structural improvements to electronic control devices used in vehicles. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide an improved electronic control device for a vehicle and an improved vehicle, so as to at least solve some of the problems in the prior art and / or overcome other possible disadvantages not mentioned herein.

[0005] According to a first aspect of the present invention, an electronic control device for a vehicle is provided, the electronic control device comprising: a printed circuit board having a first side and a second side opposite to each other, a first ground region on the first side and a second ground region on the second side; a housing comprising a first housing member and a second housing member independent of each other, the first housing member and the second housing member being assembled to each other to form a receiving cavity suitable for receiving the printed circuit board, wherein the first housing member is in conductive contact with the first ground region and the second housing member is in conductive contact with the second ground region; and a first electromagnetic shielding member independent of the housing, the first electromagnetic shielding member extending from the first housing member to the second housing member and at least partially surrounding the printed circuit board.

[0006] According to an optional embodiment of the present invention, the first housing member has a first flat surface on its inner side, the second housing member has a second flat surface on its inner side, and the first electromagnetic shielding member extends from the first flat surface to the second flat surface.

[0007] According to an optional embodiment of the present invention, the first housing member has a first conductive plane on its inner side, and the first housing member presses against the first grounding area with the first conductive plane.

[0008] According to an optional embodiment of the present invention, the second housing member has a second conductive plane on its inner side, and the second housing member presses against the second grounding area with the second conductive plane.

[0009] According to an optional embodiment of the present invention, in the assembled state of the electronic control device, the first electromagnetic shielding member is compressed between the first housing member and the second housing member.

[0010] According to an optional embodiment of the present invention, the electronic control device includes a plurality of anchors adapted to hold the first housing member, the printed circuit board and the second housing member fastened to each other, the printed circuit board having through holes through which the anchors pass, and the first grounding region and the second grounding region being disposed at least at the location of the through holes.

[0011] According to an optional embodiment of the present invention, in the assembled state of the electronic control device, the distance between the first flat surface and the second flat surface is less than the distance between the first conductive plane and the second conductive plane or less than the thickness of the printed circuit board.

[0012] According to an optional embodiment of the present invention, the second flat surface and the second conductive plane are on the same plane and adjacent to each other.

[0013] According to an optional embodiment of the present invention, when the electronic control device is installed in the vehicle, the first flat surface and the second flat surface are opposite each other in the direction of gravity.

[0014] According to an optional embodiment of the present invention, the printed circuit board has a first side region and a second side region opposite to each other, and a third side region and a fourth side region opposite to each other. The electronic control device includes an electronic connector soldered to the four side regions, and the first electromagnetic shield extends around the first side region, the second side region and the third side region.

[0015] According to an optional embodiment of the present invention, the first electromagnetic shielding member extends continuously without interruption.

[0016] According to an optional embodiment of the present invention, the first grounding region extends in a closed path through the first side region, the second side region, the third side region, and the four side regions.

[0017] According to an optional embodiment of the present invention, the second grounding region extends through the first side region, the second side region, the third side region, and the four side regions in a closed path.

[0018] According to an optional embodiment of the present invention, the electronic control device includes a second electromagnetic shield and a third electromagnetic shield extending in the fourth side region, the second electromagnetic shield extending from the first housing to the printed circuit board, and the third electromagnetic shield extending from the second housing to the printed circuit board.

[0019] According to an optional embodiment of the present invention, the first housing component has a first flange located on the periphery of the first side region and a second flange located on the periphery of the second side region, and the electronic control device includes mounting portions located on the first flange and the second flange respectively and adapted to be fixed on the vehicle.

[0020] According to an optional embodiment of the present invention, the third electromagnetic shielding member extends continuously and uninterruptedly through the entire fourth side region.

[0021] According to an optional embodiment of the present invention, the second electromagnetic shielding member has an interruption portion in the fourth side region, and the first grounding region and the second grounding region cover the interruption portion.

[0022] According to an optional embodiment of the present invention, the first housing member has a plurality of support portions adapted to support the fourth side region, the plurality of support portions being arranged sequentially along the extending direction of the fourth side region, and the second electromagnetic shielding member being arranged adjacent to the plurality of support portions.

[0023] According to an optional embodiment of the present invention, the second housing member has a protrusion adapted to press against the fourth side region, and the second electromagnetic shield and the third electromagnetic shield are located on the inner and outer sides respectively with reference to the position of the protrusion.

[0024] According to an alternative embodiment of the present invention, the electronic connector is adapted to be housed within the cavity between the plurality of supports.

[0025] According to an optional embodiment of the present invention, the second electromagnetic shielding member is disposed inwardly relative to the plurality of support portions.

[0026] According to an optional embodiment of the present invention, the plane where the second electromagnetic shielding member is located has a lower recessed height than the support plane of the plurality of support parts.

[0027] According to an optional embodiment of the present invention, the support planes of the plurality of support portions are on the same plane as the first conductive plane.

[0028] According to an optional embodiment of the present invention, the height of the second electromagnetic shielding component in its unassembled state is greater than the sinking height.

[0029] According to an optional embodiment of the present invention, the second electromagnetic shielding member is disposed inward with reference to the third electromagnetic shielding member.

[0030] According to an optional embodiment of the present invention, the second electromagnetic shielding member and / or the third electromagnetic shielding member are constructed as conductive colloids.

[0031] According to an optional embodiment of the present invention, the electronic control device is configured as a domain controller for the vehicle.

[0032] According to an optional embodiment of the present invention, the first electromagnetic shielding member is spaced apart from the printed circuit board.

[0033] According to an optional embodiment of the present invention, the first housing component is constructed as a die-cast aluminum alloy component.

[0034] According to an optional embodiment of the present invention, the second housing part is constructed as a stamped metal part.

[0035] According to an optional embodiment of the present invention, the first grounding region and / or the second grounding region are configured as exposed copper areas of the printed circuit board.

[0036] According to an optional embodiment of the present invention, the first electromagnetic shielding component is constructed as a conductive colloid.

[0037] According to a second aspect of the present invention, a vehicle is provided, the vehicle including an electronic control device for a vehicle provided in any optional embodiment of the first aspect described above.

[0038] According to certain exemplary embodiments of the present invention, by making conductive contact between the first housing component and the second housing component and the first grounding area and the second grounding area of ​​the printed circuit board respectively, a good grounding path is formed between the printed circuit board and the housing. Combined with the independently set first electromagnetic shielding component, a double-layer electromagnetic shielding structure can be formed, which significantly improves the overall electromagnetic interference resistance and shielding effect of the electronic control device. Attached Figure Description

[0039] The present invention will now be described in more detail with reference to the accompanying drawings, which will provide a better understanding of its principles, features, and advantages. The drawings include:

[0040] Figure 1 A schematic diagram of a vehicle according to an exemplary embodiment of the present invention is shown;

[0041] Figure 2 An exploded view of an electronic control device for a vehicle according to an exemplary embodiment of the present invention is shown;

[0042] Figure 3 It shows from Figure 2 A schematic diagram of the assembled electronic control device as seen from view A;

[0043] Figure 4 It shows the relationship with Figure 3 A schematic diagram of an electronic control device with a similar orientation but excluding the second housing component;

[0044] Figure 5 It shows along Figure 3 The sectional view shown is cut by the section line BB.

[0045] Figure 6 It shows Figure 5 The enlarged view of part D shown;

[0046] Figure 7 It shows Figure 6 The image shown is a simplified enlarged view of part E.

[0047] Figure 8 It shows along Figure 3The sectional view shown is cut by the section line CC; and

[0048] Figure 9 It shows Figure 8 The image shown is a magnified view of part F.

[0049] Figure label:

[0050] 2000: Vehicle; 1000: Electronic control device; 940: Through hole; 921: Second grounding area; 920: Second side; 911: First grounding area; 910: First side; 904: Fourth side area; 903: Third side area; 902: Second side area; 901: First side area; 900: Printed circuit board; 800: Housing; 700: Electronic connector; 600: Anchor; 500: Mounting part; 240: Protrusion; 201: Second flat surface; 200: Second housing part; 140: Support part; 120: Second flange; 110: First flange; 102: First conductive plane; 202: Second conductive plane; 101: First flat surface; 3: Third electromagnetic shield; 2: Second electromagnetic shield; 1: First electromagnetic shield; d: Sinking height. Detailed Implementation

[0051] To make the technical problems to be solved, the technical solutions, and the beneficial technical effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and several exemplary embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the scope of protection of the present utility model. Various embodiments may share the same view or multiple views for description, but not all features appearing in the same view should be interpreted as features that must be present in one embodiment.

[0052] First, for ease of understanding, one can recall the description made in the background section of this utility model. One objective of this utility model is to provide an electronic control device for a vehicle, the electronic control device comprising: a printed circuit board having a first side and a second side opposite to each other, a first grounding region on the first side, and a second grounding region on the second side; a housing comprising a first housing member and a second housing member independent of each other, the first housing member and the second housing member being assembled together to form a receiving cavity suitable for accommodating the printed circuit board, wherein the first housing member is in conductive contact with the first grounding region, and the second housing member is in conductive contact with the second grounding region; and a first electromagnetic shielding member independent of the housing, the first electromagnetic shielding member extending from the first housing member to the second housing member and at least partially surrounding the printed circuit board. Thus, by having the first housing member and the second housing member respectively in conductive contact with the first grounding region and the second grounding region of the printed circuit board, a good grounding path is formed between the printed circuit board and the housing. Combined with the independently provided first electromagnetic shielding member, a double-layer electromagnetic shielding structure can be formed, significantly improving the overall electromagnetic interference resistance and shielding effect of the electronic control device.

[0053] Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings.

[0054] Figure 1 A schematic diagram of a vehicle 2000 according to an exemplary embodiment of the present invention is shown. Figure 1 As shown, vehicle 2000 includes an electronic control unit 1000, which will be described in detail below. The electronic control unit 1000 is preferably configured as a domain controller for vehicle 2000 and, as schematically shown, can be mounted on the chassis of vehicle 2000, for example. In other embodiments not shown, the electronic control unit 1000 may also be configured as other electronic control units for vehicle 2000, such as other domain controllers, and mounted in other locations within vehicle 2000. Thus, according to the electromagnetic shielding structure described in detail below, electromagnetic interference from the vehicle domain controller can be effectively suppressed, avoiding electromagnetic compatibility problems with other nearby electronic devices.

[0055] Figure 2 An exploded view of an electronic control device 1000 for a vehicle 2000 according to an exemplary embodiment of the present invention is shown. Figure 2 As shown, the electronic control device 1000 includes a printed circuit board 900 for implementing electronic control functions of the vehicle 2000. The printed circuit board 900 has first sides 910 facing each other (based on...). Figure 2 The orientation shown is the upper side) and the second side 920 (based on Figure 2(The orientation shown is the lower side). The electronic control device 1000 also includes a housing 800 for accommodating the printed circuit board 900. The housing 800, as shown, specifically includes a first housing part 100 and a second housing part 200 that are independent of each other. The first housing part 100 is preferably constructed as a die-cast aluminum alloy part, thereby ensuring the necessary strength and rigidity of the housing; while the second housing part 200 is preferably constructed as a stamped metal part, such as an aluminum sheet metal part, thereby reducing manufacturing costs.

[0056] Figure 3 It shows from Figure 2 A schematic diagram of the assembled electronic control device 1000 as seen from view A; Figure 4 It shows the relationship with Figure 3 A schematic diagram of an electronic control device 1000 with a similar orientation but not including the second housing 200; Figure 5 It shows along Figure 3 The sectional view shown is cut by the section line BB. Figure 6 It shows Figure 5 The enlarged view of part D shown; Figure 7 It shows Figure 6 The image shown is a simplified enlarged view of part E. Figure 8 It shows along Figure 3 The sectional view shown is cut by the section line CC; and Figure 9 It shows Figure 8 The image shown is a magnified view of part F.

[0057] from Figure 5 Combination Figure 2 and Figure 3 It can be seen that the first housing member 100 and the second housing member 200 can be assembled together to form a receiving cavity 801 suitable for accommodating the printed circuit board 900. Figure 5 In the cross-sectional view and Figure 6 The enlarged view schematically illustrates, with double-dotted lines, the first shielding ring (outer ring) formed by the first electromagnetic shielding component independent of the housing and the housing itself, and with single-dotted lines, the second shielding ring (inner ring) formed by the housing and the grounding area of ​​the printed circuit board. These two shielding ring structures will be described in further detail in conjunction with the following embodiments.

[0058] like Figure 6 and Figure 7 As shown, the printed circuit board 900 has a first ground region 911 and a second ground region 921, schematically shown in dashed boxes, wherein the first ground region 911 is located on a first side 910 of the printed circuit board 900, and the second ground region 921 is located on a second side 920 of the printed circuit board 900. Figure 4The approximate extensions of the first grounding region 911 and the second grounding region 921 on the printed circuit board 900 are also schematically shown using double-dotted lines. The first grounding region 911 and / or the second grounding region 921 can be directly constructed as bare copper or exposed copper areas of the printed circuit board 900, for example. This allows full utilization of the wiring resources of the printed circuit board itself to construct a grounding shielding layer, simplifying the shielding structure and process.

[0059] like Figure 6 As shown, the first housing member 100 is in conductive contact with the first grounding region 911. Preferably, the first housing member 100 presses against the first grounding region 911 with its inner first conductive plane 102. Similarly, the second housing member 200 is in conductive contact with the second grounding region 921. Preferably, the second housing member 200 presses against the second grounding region 921 with its inner second conductive plane 202. These conductive planes can apply pressure through the structure of the housing itself, thereby achieving stable large-area contact with the corresponding grounding region of the printed circuit board, thus obtaining excellent conductivity. Figure 6 and Figure 7 As can be seen, the electronic control device 1000 also includes a first electromagnetic shielding element 1, independent of the housing 800 (or relative to the first housing member 100 and the second housing member 200). This first electromagnetic shielding element 1 can be constructed as conductive foam, but is preferably constructed as a conductive colloid (also known as EMCgasket), such as a high-temperature curing conductive adhesive. This conductive colloid can be directly provided on the surface of the housing, offering flexible processing, high production efficiency, and improved shielding performance and connection reliability.

[0060] like Figure 6 and Figure 7 As shown, the first electromagnetic shield 1 extends directly from the first housing 100 to the second housing 200 without contacting the printed circuit board 900. In this structure, the independent first electromagnetic shield avoids direct action on the printed circuit board, reducing the stress impact on the printed circuit board. Preferably, the first housing 100 has a first flat surface 101 on its inner side, and the second housing 200 has a second flat surface 201 on its inner side, with the first electromagnetic shield 1 extending from the first flat surface 101 to the second flat surface 201. This allows the first electromagnetic shield to have no height difference along its extension path while forming a tight fit with the housing.

[0061] from Figure 6 and Figure 7It can also be seen that, in the assembled state of the electronic control device 1000, the distance between the first flat surface 101 and the second flat surface 201 is less than the distance between the first conductive plane 102 and the second conductive plane 202, and also less than the thickness of the printed circuit board 900 itself. This ensures that the first electromagnetic shielding component undergoes sufficient compressive deformation between the two housing components, forming a reliable shielding connection. In the preferred embodiment, as... Figure 6 and Figure 7 As shown, the second flat surface 201 and the second conductive plane 202 are on the same plane and adjacent to each other. This is particularly beneficial when the second housing component is constructed of sheet metal, as it simplifies the housing structure design and manufacturing. Since the electronic control device 1000 is typically... Figure 5 The components are installed on vehicle 2000 in the indicated orientation; therefore, the first housing 100 is also called the upper cover, and the second housing 200 is also called the lower cover. In the installed state, the first flat surface 101 and the second flat surface 201 are opposite each other in the direction of gravity. Thus, the effect of gravity in the installed state can be used to further press the first electromagnetic shielding component against the first flat surface of the first housing component and make it fully fit against the second flat surface of the second housing component, thereby further enhancing the shielding effect.

[0062] For clarity, Figure 6 The black triangle in the diagram represents the uncompressed state of the first electromagnetic shield 1, while... Figure 7 The first electromagnetic shield 1 is schematically represented by a white trapezoid in a compressed state. That is, in the assembled state of the electronic control device 1000, the first electromagnetic shield 1 is compressed between the first housing 100 and the second housing 200 (e.g., compressed from a triangular cross-section to a trapezoidal cross-section). This allows the first electromagnetic shield to tightly fill the gap between the two housings, forming a complete shielding layer and preventing electromagnetic leakage. In particular, after being deformed under pressure, the first electromagnetic shield can form a tighter contact with the two housings, further improving the shielding effect. To apply compressive force to the first electromagnetic shield 1 and for assembling the electronic control device 1000, the electronic control device 1000 includes a plurality of anchors 600 suitable for securing the first housing 100, the printed circuit board 900, and the second housing 200 together. Figure 2 These anchors 600 are constructed, for example, as metal fasteners such as screws. During assembly, these screws first pass through the through-holes in the second housing 200, and then through the through-holes 940 specifically provided for this purpose in the printed circuit board 900 (in... Figure 4 The example shows several through holes 940), and finally screws them into the threaded holes in the first housing part 100, thereby aligning these three components in the extension direction of the anchor 600 (based on...). Figure 2 (As shown in the orientation, i.e., in the vertical direction) keep them firmly together. From Figure 4 It can also be seen that the first grounding region 911 and the second grounding region 921, schematically shown with double-dotted lines, are at least located at the position of the through hole 940. Thus, these anchors can simultaneously electrically connect the upper and lower grounding regions to the corresponding housing components at the through hole positions, forming a multi-point distributed shielding grounding path, significantly improving the reliability of the shielding.

[0063] from Figure 4 and Figure 6 It can be seen that the first electromagnetic shield 1 is spaced apart from and at least partially surrounds the printed circuit board 900 (in Figure 4 (Example: Three side areas surrounding the printed circuit board 900). Figure 4 As exemplarily shown, the printed circuit board 900 has a first side region 901 and a second side region 902 (here, two opposing short side regions on the left and right) and a third side region 903 and a fourth side region 904 (here, two opposing long side regions on the top and bottom) that are opposite each other. The electronic control device 1000 also includes an electronic connector 700 soldered to the fourth side region 904 of the printed circuit board 900. Figure 4 Only one electronic connector 700 is shown as an example. The electronic connector 700 is used, for example, to connect to an external cable to transmit electrical signals. In a preferred embodiment, also as... Figure 4 As shown, the first electromagnetic shielding element 1 extends only around the first side region 901, the second side region 902, and the third side region 903 of the printed circuit board 900, and does not extend at the four side regions 904. Therefore, electromagnetic shielding with a larger coverage area can be achieved without affecting the connector layout. In a further preferred embodiment, as also... Figure 4 As shown, the first electromagnetic shield 1 extends continuously and uninterruptedly around the first side region 901, the second side region 902, and the third side region 903 of the printed circuit board 900. This ensures an effective shielding layer is formed around the printed circuit board, preventing electromagnetic energy leakage. Unlike the first electromagnetic shield 1, which is only partially closed around the three side regions, the first grounding region 911 and the second grounding region 921, schematically shown with double-dotted lines, extend through the first side region 901, the second side region 902, the third side region 903, and the fourth side region 904 of the printed circuit board 900 in closed paths. This forms a complete grounding shielding ring, which enhances the effectiveness and reliability of electromagnetic shielding.

[0064] To compensate for the lack of shielding effectiveness in the fourth side region 904 where the first electromagnetic shield 1 is not located, the electronic control device 1000 includes a second electromagnetic shield 2 and a third electromagnetic shield 3 extending into the fourth side region 904. The second electromagnetic shield 2 extends from the first housing 100 to the printed circuit board 900, and the third electromagnetic shield 3 extends from the second housing 200 to the printed circuit board 900, thereby achieving complete shielding around the printed circuit board. The second electromagnetic shield 2 and / or the third electromagnetic shield 3 may be constructed as a conductive colloid similar to the first electromagnetic shield 1. Figure 4 A horizontal dashed line schematically illustrates the possible contact point between the second electromagnetic shield 2 and the printed circuit board 900, where both ends are connected to the first grounding area 911, indicated by double-dotted lines, thereby achieving effective shielding. In another embodiment (see also...), Figure 2 The second electromagnetic shielding component 2 is not as described. Figure 4 The schematically shown fourth side region 904 extends continuously and uninterruptedly, but with an interruption, which is covered by the first ground region 911 and the second ground region 921. Thus, electromagnetic shielding compensation is achieved at this interruption using the ground region on the printed circuit board, thereby maintaining the shielding integrity of the connector region while meeting other layout requirements. In contrast, the third electromagnetic shield 3 preferably extends continuously and uninterruptedly through the entire fourth side region 904. This ensures complete shielding of the connector region and effectively suppresses electromagnetic interference introduced into this region.

[0065] from Figure 3 and Figure 4 As can be seen, the first housing component 100 has a first flange 110 located around the first side region 901 and a second flange 120 located around the second side region 902. The electronic control device 1000 includes mounting portions 500 (shown as mounting holes in the figure) located on the first flange 110 and the second flange 120 respectively. The mounting portions 500 can be used to fix the electronic control device 1000 to the vehicle 2000 (e.g., to the chassis of the vehicle 2000). Thus, the flanges surround both sides of the printed circuit board, providing mechanical protection for the printed circuit board. At the same time, the flange structure is fixedly connected to the vehicle body, achieving reliable electromagnetic shielding through effective grounding.

[0066] In a preferred embodiment, the first housing member 100 further has a plurality of supports 140 adapted to support the fourth side region 904 of the printed circuit board 900. Figure 4 The approximate positions of two of the support portions 140 are schematically shown in dashed boxes. To stably support the printed circuit board 900, the support planes of these support portions 140 are preferably coplanar with the first conductive plane 102 of the first housing 100. Figure 4It can be seen that these support portions 140 extend along the fourth side region 904 (based on...) Figure 4 The directions (i.e., horizontal) are arranged sequentially, such as Figure 4 As schematically shown, the second electromagnetic shielding element 2 is arranged adjacent to these support portions 140. This provides effective mechanical support and protection for the printed circuit board while simultaneously providing electromagnetic shielding. The second electromagnetic shielding element 2 is preferably positioned further inward than the support portions 140 (i.e., closer to the center of the printed circuit board 900). Figure 4 It can also be seen that the electronic connector 700 is suitable for being housed within the cavities between these supports 140. This allows for a rational layout of the connector, improves space utilization, and enhances the electromagnetic shielding effect in the vicinity of the connector.

[0067] like Figure 9 Combination Figure 8 As shown, the second housing member 200 has a protrusion 240 adapted to press against the fourth side region 904, and preferably also forms a conductive connection. Here, the force exerted by the protrusion 240 on the printed circuit board 900 is substantially able to offset the supporting force of the support portion 140 on the printed circuit board 900 without causing the printed circuit board 900 to be subjected to adverse stress.

[0068] Figure 9 Similarly, the second electromagnetic shield 2 and the third electromagnetic shield 3 are schematically represented by black triangles in their uncompressed state. It should be understood that, in the assembled state of the electronic control device 1000, similar to the first electromagnetic shield 1, the second electromagnetic shield 2 and the third electromagnetic shield 3 are also compressed to, for example, have a trapezoidal cross-section. Figure 9 As can be seen, the second electromagnetic shield 2 and the third electromagnetic shield 3 are located on the inner and outer sides respectively, referring to the position of the protrusion 240. This forms a double-layer nested shield in the electronic connector area, significantly enhancing the shielding effect of this area. Preferably, the second electromagnetic shield 2 is positioned further inward than the third electromagnetic shield 3 (i.e., closer to the center of the printed circuit board 900). Thus, within the limited layout inside the electronic control device 1000, a nested shielding structure can be formed, thereby significantly enhancing the overall shielding effect of the connector area.

[0069] from Figure 9 It can also be seen that the recessed height d of the plane where the second electromagnetic shield 2 is located is lower than the supporting plane of the support part 140, while the height of the second electromagnetic shield 2 in its unassembled state (e.g.) Figure 9 The height of the black triangle shown is preferably slightly greater than the recessed height d. This ensures stable and reliable contact between the second shielding element and the printed circuit board, guaranteeing the shielding effect.

[0070] Other advantages and alternative embodiments of this invention will be apparent to those skilled in the art. Therefore, this invention is not, in its broader sense, limited to the specific details, representative structures, and exemplary embodiments shown and described. Various modifications and substitutions can be made by those skilled in the art without departing from the basic spirit and scope of this invention.

Claims

1. An electronic control device for a vehicle, characterized in that, the electronic control device (1000) comprises: a printed circuit board (900) having a first side (910) and a second side (920) opposite to each other, and a first land area (911) on the first side (910) and a second land area (921) on the second side (920); a housing (800) comprising a first housing part (100) and a second housing part (200) independent of each other, the first housing part (100) and the second housing part (200) being assembled with each other to form a receiving cavity (801) suitable for accommodating the printed circuit board (900), wherein the first housing part (100) is in conductive contact with the first land area (911), and the second housing part (200) is in conductive contact with the second land area (921); and a first electromagnetic shielding member (1) independent of the housing (800), the first electromagnetic shielding member (1) extending from the first housing part (100) to the second housing part (200) and at least partially surrounding the printed circuit board (900).

2. The electronic control device for a vehicle according to claim 1, characterized in that, the first housing part (100) has a first flat surface (101) on its inner side, the second housing part (200) has a second flat surface (201) on its inner side, and the first electromagnetic shielding member (1) extends from the first flat surface (101) to the second flat surface (201); and / or the first housing part (100) has a first conductive flat surface (102) on its inner side, and the first housing part (100) presses the first conductive flat surface (102) against the first land area (911); and / or the second housing part (200) has a second conductive flat surface (202) on its inner side, and the second housing part (200) presses the second conductive flat surface (202) against the second land area (921); and / or in the assembled state of the electronic control device (1000), the first electromagnetic shielding member (1) is compressed between the first housing part (100) and the second housing part (200); and / or the electronic control device (1000) comprises a plurality of anchor members (600) suitable for holding the first housing part (100), the printed circuit board (900) and the second housing part (200) fastened to each other, the printed circuit board (900) has through holes (940) for the anchor members (600) to pass through, and the first land area (911) and the second land area (921) are arranged at least at the positions of the through holes (940).

3. The electronic control device for a vehicle according to claim 2, characterized in that, in the assembled condition of said electronic control device (1000), the distance between said first flat surface (101) and said second flat surface (201) is less than the distance between said first conductive surface (102) and said second conductive surface (202) or less than the thickness of said printed circuit board (900); and / or said second flat surface (201) and said second conductive surface (202) are in the same plane and are contiguous to each other; and / or in the condition in which said electronic control device (1000) is mounted on said vehicle (2000), said first flat surface (101) and said second flat surface (201) are opposite each other in the direction of gravity; and / or said printed circuit board (900) has a first lateral region (901) and a second lateral region (902) opposite each other and a third lateral region (903) and a fourth lateral region (904) opposite each other, said electronic control device (1000) comprising an electronic connector (700) welded on said fourth lateral region (904), said first electromagnetic shield (1) extending perimetrally on said first lateral region (901), said second lateral region (902) and said third lateral region (903).

4. Electronic control device for a vehicle according to claim 3, characterized in that said first electromagnetic shield (1) extends continuously and without interruption; and / or said first grounding region (911) extends in a closed path through said first lateral region (901), said second lateral region (902), said third lateral region (903) and said fourth lateral region (904); and / or said second grounding region (921) extends in a closed path through said first lateral region (901), said second lateral region (902), said third lateral region (903) and said fourth lateral region (904).

5. Electronic control device for a vehicle according to claim 4, characterized in that said electronic control device (1000) comprises a second electromagnetic shield (2) and a third electromagnetic shield (3) extending in said fourth lateral region (904), said second electromagnetic shield (2) extending from said first housing element (100) to said printed circuit board (900), said third electromagnetic shield (3) extending from said second housing element (200) to said printed circuit board (900); and / or said first housing element (100) has a first flange (110) perimetrally located on said first lateral region (901) and a second flange (120) perimetrally located on said second lateral region (902), said electronic control device (1000) comprising a mounting portion (500) located on said first flange (110) and on said second flange (120) respectively and adapted to be fixed on said vehicle (2000).

6. Electronic control device for a vehicle according to claim 5, characterized in that said third electromagnetic shield (3) extends continuously and without interruption through the entire fourth lateral region (904); and / or The second electromagnetic shield (2) has an interruption in the fourth side edge region (904), and the first contact region (911) and the second contact region (921) cover the interruption; and / or The first housing part (100) has a plurality of support portions (140) adapted to support the fourth side edge region (904), the plurality of support portions (140) are arranged in sequence along the extension direction of the fourth side edge region (904), and the second electromagnetic shield (2) is arranged adjacent to the plurality of support portions (140); and / or The second housing part (200) has a protrusion (240) adapted to press against the fourth side edge region (904), and the second electromagnetic shield (2) and the third electromagnetic shield (3) are located on the inner and outer sides, respectively, with reference to the position of the protrusion (240).

7. The electronic control device for a vehicle according to claim 6, wherein The electronic connector (700) is adapted to be accommodated in the cavities between the plurality of support portions (140); and / or The second electromagnetic shield (2) is arranged inward with reference to the plurality of support portions (140); and / or The second electromagnetic shield (2) is sunken below the plane in which it is located, and the sinking height is lower than the support plane of the plurality of support portions (140); and / or The support plane of the plurality of support portions (140) is in the same plane as the first conductive plane (102).

8. The electronic control device for a vehicle according to claim 7, wherein The second electromagnetic shield (2) has a self height in an unassembled state that is greater than the sinking height; and / or The second electromagnetic shield (2) is arranged inward with reference to the third electromagnetic shield (3); and / or The second electromagnetic shield (2) and / or the third electromagnetic shield (3) are configured as a conductive colloid.

9. The electronic control device for a vehicle according to any one of claims 1 to 8, wherein The electronic control device (1000) is configured as a domain controller of the vehicle (2000); and / or The first electromagnetic shield (1) is spaced apart from the printed circuit board (900); and / or The first housing part (100) is configured as a die-cast aluminum alloy part; and / or The second housing part (200) is configured as a stamping metal part; and / or The first contact region (911) and / or the second contact region (921) are configured as a copper-exposed region of the printed circuit board (900); and / or The first electromagnetic shield (1) is configured as a conductive colloid.

10. A vehicle, wherein The vehicle (2000) comprises the electronic control device for a vehicle according to any one of claims 1 to 9.

Images