Vehicle networking control unit and vehicle

Abstract

The utility model relates to an Internet of Vehicles control unit and a vehicle, the Internet of Vehicles control unit comprises a box body, a mainboard and a cover body, and the box body comprises an open placing cavity; the main board comprises a board body and a heating component, the board body is connected to the box body and at least partially covers the opening of the placing cavity, and the heating component is connected to the end face, facing the placing cavity, of the board body; the cover body is located on the side, away from the box body, of the main board and is of an integrated structure, the cover body comprises a heat dissipation part and a connecting part located on the periphery of the heat dissipation part, the connecting part is connected to the box body, the heat dissipation part is aligned with and at least covers the area, provided with the heating components, of the main board, and the heat dissipation part is a heat conduction material part and at least partially attached to the main board. According to the scheme, the overall weight of the cover body is reduced, the heat dissipation requirement of the heating component is considered, the overall weight of the vehicle networking control unit is reduced, the heat dissipation requirement is met, and the product cost is reduced.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to vehicle networking control units and vehicles. Background Technology

[0002] The Telematics Box (T-BOX) is the central node for communication between the vehicle's communication system and the outside world. It integrates a 4G communication module, multi-standard antennas, and the vehicle communication control unit, primarily encompassing functions such as diagnostics, communication, safety warnings, data reporting, and software update downloads. It is a crucial component of the vehicle networking system. By connecting the vehicle's CAN bus and an external cloud platform, it enables communication and data exchange between vehicles, between vehicles and infrastructure, and between vehicles and the internet. Vehicle owners can access vehicle status reports, driving reports, fuel consumption statistics, fault alerts, traffic violation inquiries, location tracking, driving behavior monitoring, security and anti-theft features, and remote vehicle location via a mobile app from the cloud server. They can also control car doors, windows, lights, and locks, providing users with a brand-new intelligent interactive experience and enhancing driving quality and safety.

[0003] The TBOX contains multiple functional modules, such as the MCU (Microcontroller Unit), communication module, and positioning module. Currently, the integration of terminals is becoming increasingly higher, and power consumption requirements are increasing. The various components are located very close together in the small space inside the vehicle networking box, resulting in relatively concentrated heat. Therefore, heat dissipation treatment is needed for these components to quickly transfer the heat generated by the heat source to the outer casing without affecting their reliability and stability.

[0004] In existing technologies, die-cast aluminum alloy shells with good thermal conductivity are typically used to disperse and dissipate heat generated by internal components, thus ensuring that the TBOX does not overheat and cause performance degradation or system instability under prolonged high-load operation. However, this results in a heavier overall unit, higher component costs, and the die-casting mold is limited to 8W cycles. When the demand for TBOX is large, multiple molds need to be made, increasing mold costs. On the other hand, lighter plastic parts have low thermal conductivity, which cannot meet the heat dissipation requirements of high-power chip temperature junctions. Some devices also use built-in fans to help airflow and accelerate heat dissipation, but this solution results in high noise levels, and the fan structure also adds to the overall size of the unit.

[0005] Therefore, existing technologies suffer from the problem of not being able to simultaneously address the issues of overall weight, size, cost, and the high integration and heat dissipation requirements of the TBOX. Utility Model Content

[0006] Therefore, it is necessary to provide a vehicle networking control unit and vehicle to address the problem that existing technologies cannot simultaneously meet the issues of overall weight, size, cost, and the high integration and heat dissipation requirements of TBOX.

[0007] A vehicle networking control unit includes a housing, a main board, and a cover. The housing includes an open placement cavity. The main board includes a plate and a heat-generating component. The plate is connected to the housing and at least partially covers the open end of the placement cavity. The heat-generating component is connected to the end face of the plate facing the placement cavity. The cover is located on the side of the main board away from the housing and is an integral structure. The cover includes a heat dissipation part and a connecting part located on the outer periphery of the heat dissipation part. The connecting part is connected to the housing. The heat dissipation part is aligned with and at least covers the area of ​​the main board where the heat-generating component is located. The heat dissipation part is made of thermally conductive material and is at least partially attached to the main board.

[0008] In one embodiment, the connecting part is made of resin material, and the cover is an insert injection molded part.

[0009] In one embodiment, the heat dissipation part includes a heat sink protruding toward the motherboard, the heat sink being aligned with the heat-generating component, and the heat sink being attached to the heat-generating component.

[0010] In one embodiment, the vehicle networking control unit further includes thermally conductive adhesive, which is applied to the heat sink for attaching to the surface of the heat-generating component.

[0011] In one embodiment, the plate includes a hole for the heat-generating element, the heat-generating element being partially exposed through the hole to form an exposed copper area, and the heat dissipation portion being attached to the exposed copper area.

[0012] In one embodiment, the vehicle networking control unit further includes a grounding component located between the motherboard and the cover, with both ends of the grounding component abutting against the board and the heat dissipation unit, respectively.

[0013] In one embodiment, the grounding element is an elastic element, and the grounding element is clamped between the motherboard and the cover.

[0014] In one embodiment, the heat dissipation portion includes a grounding block protruding toward the motherboard, the grounding block being aligned with the grounding member, and the end of the grounding member away from the motherboard abutting against the grounding block.

[0015] In one embodiment, the vehicle network control unit further includes a heat sink, which is made of thermally conductive material. The heat sink is connected to the housing and located within the placement cavity, and the heat sink is attached to the end face of the heat-generating component facing away from the housing.

[0016] In one embodiment, the heat sink includes a bonding portion, a transition portion, and a limiting portion connected in sequence. The bonding portion is bonded to the heat-generating element, and the limiting portion is snapped into the housing.

[0017] In one embodiment, the fitting portion and the limiting portion are arranged in parallel.

[0018] In one embodiment, the box body includes a base plate and a pressure plate connected to the base plate. The base plate is used to define the bottom of the placement cavity. The pressure plate is connected to the base plate and extends toward the placement cavity. The pressure plate includes a free end spaced apart from the base plate. The limiting portion is sandwiched between the free end and the base plate.

[0019] In one embodiment, the housing includes a base plate for defining the bottom of the placement cavity. The base plate includes a limiting block that protrudes from the end face of the base plate facing the heat sink. The end of the limiting block near the transition portion is an inclined surface with an upward slope in the direction away from the transition portion. The limiting portion has a limiting hole that aligns with the limiting block, and the limiting portion is at least partially inserted into the limiting hole.

[0020] In one embodiment, the housing includes a base plate for defining the bottom of the placement cavity. The base plate includes a guide member that protrudes from the end face of the base plate facing the heat sink. The guide member includes a limiting surface and a guiding surface that are angled together. The limiting surface is disposed towards the side wall of the limiting portion or the transition portion, and the guiding surface is inclined at an upward slope in the direction toward the heat sink.

[0021] In one embodiment, the housing includes a base plate defining the bottom of the placement cavity. The base plate includes a support block protruding from the end face of the base plate facing the heat sink. The end face of the heat sink away from the heat-generating component at least partially abuts against the end of the support block away from the base plate.

[0022] In one embodiment, the end of the support block away from the base plate is a support surface. The support block includes a protrusion protruding from the support surface. The protrusion is located on one side of the heat sink, and the height of the protrusion from the support surface is not greater than the height of the end face of the heat sink away from the support surface from the support surface.

[0023] In one embodiment, the vehicle networking control unit further includes thermally conductive adhesive, which is applied to the heat sink to adhere to the surface of the heat-generating component.

[0024] A vehicle includes the vehicle networking control unit described in any of the above embodiments.

[0025] The vehicle networking control unit provided in the above solution splits the cover into a connected heat dissipation section and a connecting section located on the outer periphery of the heat dissipation section. The heat dissipation section is aligned with the area where the heat-generating components are located, so the heat dissipation section with thermal conductivity conducts heat to the heat-generating components. At this time, the connecting section located on the outer periphery of the heat dissipation section does not need to have thermal conductivity, which greatly increases the range of materials that can be selected. It can use materials with lower weight and lower raw material prices, thereby reducing the overall weight of the cover while taking into account the heat dissipation requirements of the heat-generating components. This achieves the goal of reducing the overall weight of the vehicle networking control unit, satisfying heat dissipation requirements and reducing product costs. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the vehicle networking control unit in one embodiment of this application.

[0027] Figure 2 for Figure 1 A top view of the CRRC Internet of Things control unit.

[0028] Figure 3 for Figure 2 A schematic diagram of the AA cross-section of the CRRC Internet of Things control unit.

[0029] Figure 4 for Figure 1 A top view of the CRRC Internet of Things control unit without its cover.

[0030] Figure 5 for Figure 1 A schematic diagram of the CRRC Internet of Things control unit without a cover and in the motherboard state.

[0031] Figure 6 for Figure 5 A cross-sectional schematic diagram of the CRRC Internet of Things control unit.

[0032] Figure 7 for Figure 5 A schematic diagram of the exploded structure of the CRRC Internet of Things control unit.

[0033] Explanation of reference numerals in the attached figures:

[0034] 100. Vehicle networking control unit; 110. Box body; 111. Placement cavity; 112. Base plate; 113. Pressing plate; 114. Limiting block; 1141. Inclined surface; 115. Guide component; 1151. Limiting surface; 1152. Guide surface; 116. Support block; 1161. Supporting surface; 1162. Protrusion; 117. Positioning post; 120. Main board; 121. Board body; 1211. Main positioning hole; 1 212, Secondary positioning hole; 122, Heating element; 1221, Exposed copper area; 130, Cover; 131, Heat dissipation part; 1311, Heat sink; 1312, Grounding block; 132, Connecting part; 140, Thermal conductive adhesive; 150, Grounding component; 160, Heat sink; 161, Fitting part; 162, Transition part; 163, Limiting part; 1631, Limiting hole; 170, Fastener; 180, Buckle. Detailed Implementation

[0035] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0036] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0037] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0039] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0041] One embodiment of this application provides a vehicle, which can be any type of vehicle and is not limited thereto. The vehicle includes the vehicle networking control unit 100 in any of the following embodiments.

[0042] See Figure 1 , Figure 1 The diagram shows a structural schematic of a vehicle networking control unit 100 in one embodiment of this application. The vehicle networking control unit 100 provided in one embodiment of this application is part of the vehicle's vehicle networking system and is mainly used to communicate with the background system or mobile APP (software) to realize the display and control of vehicle information by the mobile APP. It can be applied to any vehicle.

[0043] Combination Figure 2 and Figure 3 As shown, Figure 2 A top view of a vehicle networking control unit 100 according to an embodiment of this application is shown. Figure 3 for Figure 2 A cross-sectional schematic diagram (AA) shows that the vehicle networking control unit 100 includes a housing 110, a main board 120, and a cover 130. The housing 110 includes an open placement cavity 111, and the cover 130 covers the housing 110. In this embodiment, as shown... Figure 1 As shown, the box body 110 and the cover body 130 are connected by a snap fastener 180.

[0044] Combination Figure 4 As shown, the motherboard 120 includes a board body 121 and a heat-generating component 122. It should be noted that the heat-generating component 122 refers to components such as chips connected to the motherboard 120, which will generate heat when they are working, and is not limited to having a function of generating heat.

[0045] like Figure 3 and Figure 4 As shown, the plate 121 is connected to the box 110 and at least partially covers the opening of the placement cavity 111, in combination with... Figure 4 As shown, in this embodiment, the plate 121 completely covers the opening of the placement cavity 111. However, in other embodiments, the plate 121 may partially cover the opening of the placement cavity 111, which is not a limitation. Figure 3 and Figure 4 As shown, in this embodiment, the plate 121 is fixedly connected to the box 110 by a fastener 170, which is exemplarily a bolt. Optionally, the box 110 is provided with a positioning post 117 located inside the placement cavity 111, and the plate 121 has a positioning hole that aligns with the positioning post 117. The positioning post 117 passes through the positioning hole to guide and position the plate 121 in the box 110. Preferably, as shown... Figure 4 As shown, the positioning holes include a main positioning hole 1211 and a secondary positioning hole 1212, wherein the main positioning hole 1211 is a circular hole and the secondary positioning hole 1212 is an oblong hole, for positioning and guiding the plate 121 during installation.

[0046] like Figure 3 As shown, the heating element 122 is connected to the end face of the plate 121 facing the placement cavity 111. The heating element 122 is arranged on one side of the plate 121, which makes the space required for the cover 130 smaller, reduces the overall size of the vehicle network control unit 100, and also places the heating element 122 inside the placement cavity 111, thereby protecting the heating element 122 through the box 110 and preventing it from being bumped and affecting its function.

[0047] like Figures 1 to 3 As shown, the cover 130 is located on the side of the main board 120 opposite to the box 110 and is an integral structure to facilitate the assembly of the cover 130 and the box 110. Figures 1 to 3As shown, the cover 130 includes a heat dissipation portion 131 and a connecting portion 132 located on the outer periphery of the heat dissipation portion 131. The connecting portion 132 is connected to the housing 110. The heat dissipation portion 131 is aligned with and at least covers the area of ​​the motherboard 120 where the heat-generating component 122 is located. The heat dissipation portion 131 is made of thermally conductive material and is at least partially attached to the motherboard 120, thereby conducting and dissipating heat through the heat dissipation portion 131 for the heat-generating component 122. Exemplarily, the heat dissipation portion 131 can be made of aluminum with a high thermal conductivity, but this is not a limitation. In other embodiments, other materials with thermal conductivity can also be used.

[0048] In one embodiment, the connecting part 132 is made of resin material to reduce the weight of the cover 130, thereby reducing the overall weight of the vehicle networking control unit 100, achieving both heat dissipation requirements and reduced product costs.

[0049] The cover 130 is an insert injection molded part. Insert injection molding is produced using molds. Typically, the number of injection molding cycles for injection molded parts exceeds 300,000, and for aluminum sheet metal parts as an example, the number of metal mold cycles exceeds 500,000. Moreover, the price of raw materials is relatively low, effectively reducing the cost of molds and parts. Insert injection molding can fully utilize the performance of materials and reduce product weight and cost. In other embodiments, the cover 130 can also be integrally formed using hot melting (the heat dissipation part 131 is pressed into the connecting part 132 by pressing the rivet with a heated rivet), hot riveting (the long hot melt column of the connecting part 132 is made into a hole, and the heat dissipation part 131 and the connecting part 132 are hot melted into one piece), screw fastening, adhesive bonding, snap-fit ​​180, and other forming methods.

[0050] like Figure 1 and Figure 3 As shown, in one embodiment, the heat dissipation part 131 includes a heat dissipation block 1311 protruding toward the motherboard 120. The heat dissipation block 1311 is aligned with the heat-generating component 122. The heat dissipation block 1311 is attached to the heat-generating component 122 so as to reduce the distance between the heat dissipation block 1311 and the heat-generating component 122 by protruding inward.

[0051] In this embodiment, such as Figure 3 As shown, the heat dissipation part 131 has a uniform thickness structure. The heat dissipation block 1311 is formed by bending and concave in the heat dissipation part 131. By concavely setting the heat dissipation block 1311, the area of ​​the heat dissipation block 1311 is increased compared with the planar state, thereby increasing the heat dissipation area and obtaining a better heat dissipation effect.

[0052] like Figure 3As shown, in one embodiment, the vehicle network control unit 100 further includes thermally conductive adhesive 140, which is applied to the heat sink 1311 to adhere to the surface of the heat-generating component 122, thereby connecting the heat sink 1311 and the heat-generating component 122, fixing their relative positions and preventing them from shifting and affecting the heat dissipation effect.

[0053] like Figure 4 As shown, in one embodiment, the board body 121 includes a hole for the heat-generating component 122, and the heat-generating component 122 is partially exposed through the hole to form an exposed copper area 1221. The heat dissipation part 131 is attached to the exposed copper area 1221 so that the heat dissipation part 131 directly acts on the heat-generating component 122, thereby avoiding the board body 121 from affecting the heat dissipation of the heat-generating component 122.

[0054] Electrostatic discharge (ESD) voltages generated during the production, transportation, storage, transfer, and normal use of electronic products often far exceed their breakdown voltage thresholds. ESD can cause device breakdown, affecting product specifications, reducing reliability, and even leading to product failure and serious losses. Therefore, ESD protection is of paramount importance. Figure 3 and Figure 4 As shown, in one embodiment, to prevent electrostatic discharge from causing the mainboard 120 to fail, the vehicle network control unit 100 further includes a grounding component 150. The grounding component 150 is located between the mainboard 120 and the cover 130, and the two ends of the grounding component 150 abut against the board 121 and the heat sink 131 respectively, so as to realize the electrical connection between the mainboard 120 and the cover 130. This avoids the accumulation of charge due to capacitance effect between the metal heat sink 131 and the mainboard 120, which could cause the mainboard 120 to fail. It also avoids high voltage discharge from causing the mainboard 120 to fail, thus affecting the reliability and stability of the mainboard 120 and effectively reducing the risk of mainboard 120 failure.

[0055] like Figure 3 As shown, in one embodiment, the grounding member 150 is an elastic member. The grounding member 150 is sandwiched between the motherboard 120 and the cover 130. By utilizing the elastic properties of the grounding member 150 itself, even if there are installation errors between the motherboard 120 and the cover 130 or the gap increases slightly due to long-term use, the grounding member 150 can still maintain its two ends abutting against the motherboard 120 and the cover 130 respectively, thereby ensuring grounding stability and reliability.

[0056] like Figure 3 As shown, in one embodiment, the heat dissipation unit 131 includes a grounding block 1312 protruding towards the motherboard 120. The grounding block 1312 and the grounding member 150 are aligned one-to-one, and the end of the grounding member 150 away from the motherboard 120 abuts against the grounding block 1312, so as to reduce the distance between the heat dissipation unit 131 and the motherboard 120 through the grounding block 1312. In this embodiment, as... Figure 4 As shown, there are two grounding components 150. Correspondingly, the number of grounding blocks 1312 is the same as that of grounding components 150 and they are set one-to-one.

[0057] like Figure 3 , Figures 5 to 7 As shown, in one embodiment, the vehicle network control unit 100 further includes a heat sink 160, wherein the heat sink 160 is made of a thermally conductive material. Exemplarily, the heat sink 160 can also be made of sheet metal, such as 1070 aluminum plate with a thermal conductivity as high as 226 W / (m·K), which is beneficial for heat dissipation, lightweight, and relatively inexpensive. The heat sink 160 is connected to the housing 110 and located in the placement cavity 111. The heat sink 160 is attached to the end face of the heat-generating component 122 opposite to the housing 110, so that it and the heat dissipation part 131 are respectively located on the two end faces opposite to the heat-generating component 122. The two work together to heat the heat-generating component 122, and are used in a synchronous heat dissipation scheme on both the front and back of the heat-generating component 122 to achieve the effect of enhanced local heat dissipation, thereby improving the heat dissipation effect of the heat-generating component 122.

[0058] The heat generated by the heat-generating component 122 during normal operation is partially dissipated by the thermally conductive adhesive 140 and heat sink 160 on the front side, and the other part is transferred from the exposed copper area 1221 on the back side through the thermally conductive adhesive 140 and heat sink 1311 to the entire heat dissipation part 131, thereby achieving heat dissipation through full heat exchange with the external environment.

[0059] like Figure 6 and Figure 7 As shown, in one embodiment, the heat sink 160 includes a bonding portion 161, a transition portion 162 and a limiting portion 163 connected in sequence. The bonding portion 161 is bonded to the heat-generating component 122, and the limiting portion 163 is snapped into the housing 110 to fix the overall position of the heat sink 160 through the limiting portion 163.

[0060] like Figure 6 and Figure 7 As shown, in one embodiment, the fitting portion 161 and the limiting portion 163 are arranged in parallel. In this embodiment, the heat sink 160 has a U-shaped structure.

[0061] like Figure 6 and Figure 7 As shown, in one embodiment, the housing 110 includes a base plate 112 and a pressure plate 113 connected to the base plate 112. The base plate 112 is used to define the bottom of the placement cavity 111. The pressure plate 113 is connected to the base plate 112 and extends toward the placement cavity 111. The pressure plate 113 includes a free end spaced apart from the base plate 112. A limiting part 163 is clamped between the free end and the base plate 112 so that the limiting part 163 is clamped in a set position by the pressure plate 113 and the base plate 112 together, so as to prevent the heat sink 160 from shifting and affecting the heat dissipation effect.

[0062] like Figure 6 and Figure 7 As shown, in one embodiment, the base plate 112 includes a limiting block 114, which protrudes from the end face of the base plate 112 facing the heat sink 160. The end of the limiting block 114 near the transition portion 162 is an inclined surface 1141. The inclined surface 1141 is inclined at an upward slope in the direction away from the transition portion 162, so that the limiting portion 163 can move along the inclined surface 1141 and pass over the limiting block 114 during installation. The limiting portion 163 has a limiting hole 1631 that aligns with the limiting block 114. The limiting portion 163 is at least partially inserted into the limiting hole 1631. The limiting portion 163 is fixed in position by the limiting block 114 abutting against the peripheral wall of the limiting hole 1631, thereby preventing the heat sink 160 from shifting.

[0063] like Figures 5 to 7 As shown, in one embodiment, the base plate 112 includes a guide 115, which protrudes from the end face of the base plate 112 facing the heat sink 160. The guide 115 includes a limiting surface 1151 and a guiding surface 1152 arranged at an angle. The limiting surface 1151 is disposed towards the side wall of the limiting portion 163 or the transition portion 162, and the guiding surface 1152 is inclined at an upward slope in the direction close to the heat sink 160 to guide the installation of the heat sink 160. In this embodiment, the limiting surface 1151 is disposed towards the side wall of the limiting portion 163, but when the plane of the transition portion 162 is parallel to the installation direction of the heat sink 160, the limiting surface 1151 is disposed towards the transition portion 162.

[0064] like Figures 5 to 7 As shown, in one embodiment, the base plate 112 includes a support block 116, which protrudes from the end face of the base plate 112 facing the heat sink 160. The end face of the heat sink 160 away from the heat-generating component 122 at least partially abuts against the end of the support block 116 away from the base plate 112, so that the support block 116 supports the bonding portion 161, thereby keeping the bonding portion 161 in contact with the heat-generating component 122.

[0065] In one embodiment, such as Figure 7 As shown, the end of the support block 116 furthest from the base plate 112 is the support surface 1161, as... Figures 5 to 7As shown, the support block 116 includes a protrusion 1162 protruding from the support surface 1161. The protrusion 1162 is located on one side of the heat sink 160, and on the side of the support surface 1161 facing the mounting direction of the heat sink 160, thereby defining the mounting position of the heat sink 160. Furthermore, the height of the protrusion 1162 from the support surface 1161 is not greater than the height of the end face of the heat sink 160 facing away from the support surface 1161, to avoid interference between the protrusion 1162 and the contact portion 161 contacting the heat-generating component 122.

[0066] In one embodiment, thermally conductive adhesive 140 is applied to the heat sink 160 to adhere to the surface of the heat-generating component 122, thereby fixing the position of the heat sink 160 and preventing the heat sink 160 from shifting and affecting the heat dissipation effect.

[0067] The vehicle networking control unit 100 provided in the above solution divides the cover 130 into a connected heat dissipation part 131 and a connecting part 132 located on the outer periphery of the heat dissipation part 131. The heat dissipation part 131 is aligned with the area where the heat-generating component 122 is located, so the heat dissipation part 131 with thermal conductivity conducts heat to the heat-generating component 122. At this time, the connecting part 132 located on the outer periphery of the heat dissipation part 131 does not need to have thermal conductivity, and the range of materials that can be selected is greatly increased. It can use materials with lower weight and lower raw material price, thereby reducing the overall weight of the cover 130, while taking into account the heat dissipation requirements of the heat-generating component 122, thus reducing the overall weight of the vehicle networking control unit 100, satisfying the heat dissipation requirements and reducing product costs.

[0068] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A vehicle networking control unit, characterized in that, The vehicle network control unit includes: The box body, including an open placement cavity; A motherboard, comprising a board body and heating elements, the board body being connected to the housing and at least partially covering the opening of the placement cavity, the heating elements being connected to the end face of the board body facing the placement cavity; and The cover is located on the side of the motherboard away from the box and is an integral structure. The cover includes a heat dissipation part and a connecting part located on the outer periphery of the heat dissipation part. The connecting part is connected to the box. The heat dissipation part is aligned with and at least covers the area of ​​the motherboard where the heat-generating components are located. The heat dissipation part is made of thermally conductive material and is at least partially attached to the motherboard.

2. The vehicle networking control unit according to claim 1, characterized in that, The connecting part is made of resin material, and the cover is an insert injection molded part.

3. The vehicle networking control unit according to claim 1, characterized in that, The heat dissipation part includes a heat sink protruding towards the motherboard, the heat sink being aligned with the heat-generating components, and the heat sink being attached to the heat-generating components.

4. The vehicle networking control unit according to claim 3, characterized in that, The vehicle networking control unit also includes thermally conductive adhesive, which is applied to the heat sink to adhere to the surface of the heat-generating components.

5. The vehicle networking control unit according to claim 1 or 3, characterized in that, The plate includes holes located on the heat-generating components, with a portion of the heat-generating components exposed through the holes to form an exposed copper area, and the heat dissipation part is attached to the exposed copper area.

6. The vehicle networking control unit according to claim 1, characterized in that, The vehicle networking control unit also includes a grounding component, which is located between the motherboard and the cover, with its two ends abutting against the board and the heat dissipation unit, respectively.

7. The vehicle networking control unit according to claim 6, characterized in that, The grounding element is an elastic element, and it is sandwiched between the motherboard and the cover.

8. The vehicle networking control unit according to claim 6, characterized in that, The heat dissipation part includes a grounding block protruding towards the motherboard. The grounding block and the grounding component are aligned one-to-one, and the end of the grounding component away from the motherboard abuts against the grounding block.

9. The vehicle networking control unit according to claim 1, characterized in that, The vehicle network control unit also includes a heat sink, which is made of thermally conductive material. The heat sink is connected to the housing and located inside the placement cavity. The heat sink is attached to the end face of the heat-generating component away from the housing.

10. The vehicle networking control unit according to claim 9, characterized in that, The heat sink includes a bonding part, a transition part, and a limiting part connected in sequence. The bonding part is bonded to the heat-generating component, and the limiting part is snapped into the housing.

11. The vehicle networking control unit according to claim 10, characterized in that, The fitting portion and the limiting portion are arranged in parallel.

12. The vehicle networking control unit according to claim 10, characterized in that, The box body includes a base plate and a pressure plate connected to the base plate. The base plate is used to define the bottom of the placement cavity. The pressure plate is connected to the base plate and extends toward the placement cavity. The pressure plate includes a free end spaced apart from the base plate. The limiting part is sandwiched between the free end and the base plate.

13. The vehicle networking control unit according to claim 10, characterized in that, The box body includes a base plate, which defines the bottom of the placement cavity. The base plate includes a limiting block, which protrudes from the end face of the base plate facing the heat sink. The end of the limiting block near the transition portion is an inclined surface. The inclined surface is inclined at an upward slope in the direction away from the transition portion. The limiting portion has a limiting hole that aligns with the limiting block. The limiting portion is at least partially inserted into the limiting hole.

14. The vehicle networking control unit according to claim 10, characterized in that, The box body includes a base plate for defining the bottom of the placement cavity. The base plate includes a guide member that protrudes from the end face of the base plate facing the heat sink. The guide member includes a limiting surface and a guiding surface that are angled together. The limiting surface is disposed towards the side wall of the limiting part or the transition part, and the guiding surface is inclined at an upward slope in the direction closer to the heat sink.

15. The vehicle networking control unit according to claim 9, characterized in that, The housing includes a base plate for defining the bottom of the placement cavity. The base plate includes a support block that protrudes from the end face of the base plate facing the heat sink. The end face of the heat sink away from the heat-generating component at least partially abuts against the end of the support block away from the base plate.

16. The vehicle networking control unit according to claim 15, characterized in that, The end of the support block away from the base plate is the support surface. The support block includes a protrusion protruding from the support surface. The protrusion is located on one side of the heat sink, and the height of the protrusion from the support surface is not greater than the height of the end face of the heat sink away from the support surface from the support surface.

17. The vehicle networking control unit according to claim 9, characterized in that, The vehicle networking control unit also includes thermally conductive adhesive, which is applied to the heat sink to adhere to the surface of the heat-generating components.

18. A vehicle, characterized in that, Includes the vehicle networking control unit as described in any one of claims 1-17.

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