Domain controller and vehicle

Abstract

The application discloses a domain controller and a vehicle, the domain controller comprising a shell, an isolation plate, a main circuit board, an auxiliary circuit board and a shielding cover, the shell having a containing cavity; the isolation plate is arranged in the containing cavity and is used for dividing the containing cavity into a first cavity and a second cavity which are arranged at intervals along a first direction; the main circuit board is arranged in the first cavity; the auxiliary circuit board is arranged in the second cavity; the shielding cover is arranged on the main circuit board and is located in the first cavity, a shielding cavity is formed between the shielding cover and the main circuit board, the shielding cover is arranged at intervals and is a plurality of shielding covers, the shielding cavity is a plurality of shielding cavities which are one-to-one corresponding, and the plurality of shielding cavities are not communicated with each other. The application realizes spatial isolation of the main circuit board and the auxiliary circuit board through the isolation plate, and a plurality of shielding covers are arranged at intervals on the main circuit board, different modules on the main circuit board are managed in different areas, secondary protection is realized in cooperation with the shell, the functions of the main circuit board and the auxiliary circuit board are continuously stable and reliable, and therefore the reliability of the domain controller is ensured.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a domain controller and a vehicle. Background Technology

[0002] In related technologies, the domain controller, as the core control unit of intelligent vehicles, integrates key components such as LiDAR / camera signal processing modules and power control interfaces. It needs to achieve precise control command output in the complex electromagnetic environment of the vehicle. With the increasing integration and computing power of domain controllers, internal electromagnetic coupling interference intensifies, and different functional components interfere with each other. For example, there is electromagnetic interference leakage and intrusion between strong interference modules and sensitive modules. Simultaneously, it faces wide-band electromagnetic interference from the engine, high-voltage power distribution system, and vehicle radar. EMC performance directly affects the reliability and safety of the intelligent driving system. These problems can cause domain controller command response delays, erroneous function triggers, and even system crashes, seriously impacting driving safety. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a domain controller that can avoid electromagnetic interference between the main circuit board and the auxiliary circuit board.

[0004] The present invention also proposes a vehicle comprising the aforementioned domain controller.

[0005] A domain controller according to an embodiment of the present invention includes: a housing having a receiving cavity; an isolation plate disposed within the receiving cavity for dividing the receiving cavity into a first cavity and a second cavity spaced apart along a first direction; a main circuit board disposed within the first cavity; an auxiliary circuit board disposed within the second cavity; and a shielding cover located within the first cavity and disposed on the main circuit board, wherein a shielding cavity is formed between the shielding cover and the main circuit board, wherein there are multiple shielding covers spaced apart, and multiple shielding cavities are one-to-one corresponding to each other, and the multiple shielding cavities are not interconnected.

[0006] According to an embodiment of the present invention, a domain controller is provided within a housing, and an isolation plate is placed within the housing. The isolation plate divides the housing into a first cavity and a second cavity spaced apart along a first direction. A main circuit board is disposed in the first cavity, and an auxiliary circuit board is disposed in the second cavity. A shielding cover is disposed on the main circuit board, forming a shielding cavity between the shielding cover and the main circuit board. Multiple shielding covers are spaced apart, and multiple shielding cavities are one-to-one corresponding to each other, with no communication between the multiple shielding cavities. This not only achieves spatial separation of the main circuit board and the auxiliary circuit board, preventing radiative coupling between the main circuit board in the first cavity and the auxiliary circuit board in the second cavity, but also ensures that different modules on the main circuit board do not interfere with each other. Furthermore, in conjunction with the housing, it provides secondary protection, enhancing the electromagnetic protection of the modules on the main circuit board, thereby ensuring the continuous, stable, and reliable function of the main circuit board and the auxiliary circuit board, thus guaranteeing the reliability of the domain controller's operation and ultimately ensuring the safe operation of the vehicle.

[0007] According to some embodiments of the present invention, a first conductive foam is provided between the isolation plate and the main circuit board, the first conductive foam extending along the circumferential direction of the main circuit board; and / or, a second conductive foam is provided between the isolation plate and the auxiliary circuit board, the second conductive foam extending along the circumferential direction of the auxiliary circuit board.

[0008] According to some embodiments of the present invention, the isolation plate is provided with a through hole extending through the isolation plate in a first direction, and the domain controller further includes: a shielding sleeve, the shielding sleeve being disposed in the through hole, and a connection component for connecting the main circuit board and the auxiliary circuit board being disposed in the shielding sleeve.

[0009] According to some embodiments of the present invention, the shielding cover is made of nickel silver.

[0010] According to some embodiments of the present invention, the housing is provided with air vents on both sides opposite to each other along the second direction, and the air vents are provided with grilles, wherein the first direction and the second direction are perpendicular.

[0011] According to some embodiments of the present invention, the connector is disposed on the connecting sidewall of the housing and connected to the main circuit board and / or the auxiliary circuit board; the third conductive foam is disposed on the inner surface of the connecting sidewall, and the connector is disposed on the third conductive foam.

[0012] According to some embodiments of the present invention, the housing includes a housing body and a cover body, the cover body and the housing body being arranged and connected along a first direction, the housing body and the cover body jointly defining the receiving cavity, the first cavity and the second cavity being spaced apart in the first direction.

[0013] According to some embodiments of the present invention, the housing is made of aluminum.

[0014] According to some embodiments of the present invention, the inner surface of the housing is provided with a conductive paint coating.

[0015] The vehicle according to an embodiment of the present invention includes the domain controller described above.

[0016] According to an embodiment of the present invention, in a vehicle equipped with the aforementioned domain controller, a receiving cavity is provided within the housing, and an isolation plate is placed within the receiving cavity. The isolation plate divides the receiving cavity into a first cavity and a second cavity spaced apart along a first direction. A main circuit board is disposed in the first cavity, and an auxiliary circuit board is disposed in the second cavity. A shielding cover is disposed on the main circuit board, forming a shielding cavity between the shielding cover and the main circuit board. Multiple shielding covers are spaced apart, and multiple shielding cavities are one-to-one corresponding to each other, with the multiple shielding cavities not communicating with each other. This not only achieves spatial separation of the main circuit board and the auxiliary circuit board, preventing radiative coupling between the main circuit board in the first cavity and the auxiliary circuit board in the second cavity, but also ensures that different modules on the main circuit board do not interfere with each other. Furthermore, in conjunction with the housing, it provides secondary protection, enhancing the electromagnetic protection of the modules on the main circuit board, thereby ensuring the continuous, stable, and reliable function of the main circuit board and the auxiliary circuit board, thus ensuring the reliability of the domain controller's operation and ultimately ensuring the safe operation of the vehicle. Attached Figure Description

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is an exploded view of a domain controller according to an embodiment of the present invention; Figure 2 This is a perspective view of the shell body of a domain controller according to an embodiment of the present invention; Figure 3 This is a perspective view of the main circuit board and shielding cover of a domain controller according to an embodiment of the present invention; Figure 4 This is a perspective view of the isolation plate, the first conductive foam, and the shielding sleeve of the domain controller according to an embodiment of the present invention; Figure 5 This is a perspective view of the housing body and the third conductive foam of the domain controller according to an embodiment of the present invention; Figure 6 yes Figure 1 Enlarged view of A in the middle; Figure 7 yes Figure 1 A magnified view of B in the middle.

[0018] Figure label: 100. Domain controller; 1. Shell; 11. Cover; 12. Shell body; 13. Receiving cavity; 14. Air outlet; 141. First area; 142. Second area; 143. Third area; 15. Grille; 16. Connecting sidewall; 2. Main circuit board; 3. Isolation plate; 31. Through hole; 4. Auxiliary circuit board; 5. Shielding sleeve; 6. First conductive foam; 7. Shielding cover; 8. Second conductive foam; 9. Connectors; 10. Third conductive foam. Detailed Implementation

[0019] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0020] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention 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 the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] A domain controller 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0023] According to an embodiment of the present invention, a domain controller 100 includes a housing 1, an isolation plate 3, a main circuit board 2, an auxiliary circuit board 4, and a shielding cover 7.

[0024] Specifically, such as Figure 1 As shown, the housing 1 has a receiving cavity 13, and an isolation plate 3 is placed inside the receiving cavity 13. The isolation plate 3 divides the receiving cavity 13 into a first cavity and a second cavity spaced apart along a first direction. The main circuit board 2 is located in the first cavity, and the auxiliary circuit board 4 is located in the second cavity.

[0025] exist Figure 1 In the example shown, housing 1 protects the isolation plate 3, main circuit board 2, and auxiliary circuit board 4 inside housing 1. Simultaneously, housing 1 provides electromagnetic isolation, preventing external electromagnetic interference from penetrating the interior of housing 1 and ensuring the continuous, stable, and reliable function of main circuit board 2 and auxiliary circuit board 4, thereby guaranteeing the safe operation of the vehicle. Furthermore, housing 1 also prevents electromagnetic interference generated inside housing 1 from affecting external components of the domain controller 100.

[0026] exist Figure 1 In the example shown, the housing 1 is rectangular. The rectangular housing 1 can improve the utilization of the internal space of the housing 1. In addition, the regular shape of the rectangular housing 1 is suitable for extrusion molding of aluminum profiles or injection molding of standard molds. The processing steps are simple, the material loss is low, and it can improve the production efficiency of the domain controller 100 and reduce the manufacturing cost of the domain controller 100.

[0027] Of course, the present invention is not limited to this, and the shell 1 can also be cylindrical.

[0028] like Figure 1 As shown, the isolation plate 3 is disposed within the receiving cavity 13, dividing the receiving cavity 13 into a first cavity and a second cavity spaced apart along a first direction. The main circuit board 2 and the auxiliary circuit board 4 are respectively disposed within the first cavity and the second cavity. This isolates the main circuit board 2 and the auxiliary circuit board 4, reducing radiative coupling between them, reducing electromagnetic interference between them, and ensuring the reliability of their operation.

[0029] exist Figure 1 and Figure 4 In the example shown, the isolation plate 3 is an integral flat plate structure, and the isolation plate 3 is a rectangular plate that matches the shape of the housing 1. This not only facilitates the installation of the isolation plate 3 and improves production efficiency, but also better enhances the sealing performance and strengthens the electromagnetic isolation between the first cavity and the second cavity.

[0030] Optionally, the isolation plate 3 can be a metal plate to increase the isolation effect of the isolation plate 3 and enhance the electromagnetic isolation effect of the isolation plate 3 on the main circuit board 2 and the auxiliary circuit board 4.

[0031] Of course, the present invention is not limited to this, and the isolation plate 3 may also include multiple sub-plates that are spliced ​​and connected to each other.

[0032] The main circuit board 2 is the core control circuit board, typically containing a System-on-Chip (SoC) module, a Microcontroller Unit (MCU) module, a power management module, a high-speed clock circuit module, a high-speed signal module (including an RF interface), a sensor signal processing circuit module (including a sensor interface), and an interface circuit module. These modules are mostly weak signal modules, high-frequency modules, and high-sensitivity modules. Therefore, placing the main circuit board 2 in the first cavity, isolated from the second cavity, can better optimize electromagnetic compatibility and improve signal integrity. The isolation plate 3 prevents electromagnetic interference from the main circuit board 2 from entering the auxiliary circuit board 4 in the second cavity, ensuring the continuous, stable, and reliable function of the auxiliary circuit board 4.

[0033] The auxiliary circuit board 4 mainly consists of power adapter boards, auxiliary interface boards, power drive circuits, high-current power supply circuits, and other modules that are prone to strong interference, high noise, and strong radiation. By placing the auxiliary circuit board 4 in the second cavity and isolating it from the first cavity, the reliability of the auxiliary circuit board 4 and its service life are improved.

[0034] The isolation plate 3 isolates the main circuit board 2 in the first cavity and the auxiliary circuit board 4 in the second cavity. Through physical separation, it achieves spatial separation of high-speed sensitive signals from power supply noise and switching interference, avoiding spatial radiation coupling between the first and second cavities. This ensures that the main circuit board 2 and the auxiliary circuit board 4 are completely separated in space, preventing them from forming directly opposing radiation surfaces and avoiding direct electromagnetic coupling between the main circuit board 2 in the first cavity and the auxiliary circuit board 4 in the second cavity. Simultaneously, it prevents power supply noise from interfering with the main control signal, high-speed signal radiation from contaminating the power supply circuit, and cavity resonance enhancement. It reduces the superposition of signal crosstalk, power supply noise coupling, and spatial radiation, ensuring the continuous, stable, and reliable function of the main circuit board 2 and the auxiliary circuit board 4, thereby guaranteeing the safe operation of the vehicle.

[0035] like Figure 1 and Figure 3 As shown, the domain controller 100 also includes a shielding cover 7, which is located within the first cavity and mounted on the main circuit board 2. The shielding cover 7 and the main circuit board 2 form a shielding cavity. The shielding cover 7 and the housing 1 together form a double electromagnetic barrier for the components within the shielding cavity. The housing 1 blocks external electromagnetic interference from intruding into the domain controller 100, while the shielding cover 7 suppresses electromagnetic interference leakage from internal high-radiation modules. This achieves full-domain electromagnetic isolation of the domain controller 100 from the overall system to its parts, thereby ensuring the continuous, stable, and reliable function of the domain controller 100 and ultimately guaranteeing vehicle driving safety.

[0036] Multiple shielding covers 7 are spaced apart, and multiple shielding cavities are one-to-one corresponding to each other, with no interconnection between the cavities. The main circuit board 2 is the core control circuit board, typically containing SOC (System on Chip) modules, MCU (Microcontroller Unit) modules, power management modules, high-speed clock circuit modules, high-speed signal modules, sensor signal processing circuit modules, and interface modules. These modules are mostly weak signal modules, high-frequency modules, and high-sensitivity modules. Based on the layout of different functional components such as chips, power supplies, and RF components, independent enclosed shielding areas are defined. Multiple shielding covers 7 can respectively correspond to SOC (System on Chip) modules, MCU (Microcontroller Unit) modules, power management modules, high-speed clock circuit modules, high-speed signal modules, sensor signal processing circuit modules, and interface modules. By setting up shielded cavities that correspond one-to-one with the above modules and are not interconnected, the different modules on the main circuit board 2 are physically isolated from each other, realizing the zoning management of strong and weak currents, high and low speeds, sensitive devices and interference devices. Together with the inner shielding cover 7, a secondary protection is formed to block near-field coupling and cavity resonance, ensuring the continuous and stable operation of the modules in the shielded cavity.

[0037] Optionally, the shielding cover 7 is fixed to the main circuit board 2 by surface mount soldering, with the soldering points evenly distributed to ensure low impedance conduction between the shielding cover 7 and the ground plane of the main circuit board 2.

[0038] According to an embodiment of the present invention, the domain controller 100 includes a housing 1 with a receiving cavity 13, an isolation plate 3 placed within the receiving cavity 13, and the isolation plate 3 dividing the receiving cavity 13 into a first cavity and a second cavity spaced apart along a first direction. A main circuit board 2 is disposed in the first cavity, and an auxiliary circuit board 4 is disposed in the second cavity. A shielding cover 7 is disposed on the main circuit board 2, forming a shielding cavity between the shielding cover 7 and the main circuit board 2. Multiple shielding covers 7 are spaced apart, and multiple shielding cavities are one-to-one corresponding, with the multiple shielding cavities not communicating with each other. This not only achieves spatial separation between the main circuit board 2 and the auxiliary circuit board 4, preventing radiative coupling between the main circuit board 2 in the first cavity and the auxiliary circuit board 4 in the second cavity, but also ensures that different modules on the main circuit board 2 do not interfere with each other. Furthermore, in conjunction with the housing 1, it provides secondary protection, enhancing the electromagnetic protection of the modules on the main circuit board 2, thereby preventing electromagnetic interference between the main circuit board 2 and the auxiliary circuit board 4, ensuring the continuous, stable, and reliable function of the main circuit board 2 and the auxiliary circuit board 4, thus ensuring the reliability of the domain controller 100 and the safe operation of the vehicle.

[0039] In some embodiments of the present invention, such as Figure 1As shown, a first conductive foam 6 is provided between the isolation plate 3 and the main circuit board 2, extending along the circumferential direction of the main circuit board 2. When the main circuit board 2 is installed in place, the main circuit board 2 and the first conductive foam 6, as well as the isolation plate 3 and the first conductive foam 6, make elastic compression contact, thereby forming a continuous, low-impedance conductive grounding sealing surface between the isolation plate 3 and the main circuit board 2. This also fills the assembly gap between the isolation plate 3 and the main circuit board 2, eliminating electromagnetic leakage gaps, thus forming an all-round sealed shield on the main circuit board 2. This effectively prevents electromagnetic leakage and intrusion of the main circuit board 2, thereby ensuring the continuous, stable, and reliable function of the domain controller 100, ensuring the reliability of the domain controller 100's operation, and ultimately ensuring vehicle driving safety.

[0040] The first conductive foam 6 makes elastic contact with the grounded copper foil of the main circuit board 2 to form a continuous conductive sealing surface, thereby achieving full-enclosed shielding between the connection component area and the edge of the main circuit board 2.

[0041] Optionally, the first conductive foam 6 is bonded to the isolation plate 3 and the main circuit board 2.

[0042] Optionally, the outer edge of the first conductive foam 6 is flush with the outer edge of at least one of the isolation plate 3 and the main circuit board 2.

[0043] In some embodiments of the present invention, such as Figure 1 As shown, a second conductive foam 8 is provided between the isolation plate 3 and the auxiliary circuit board 4, extending along the circumferential direction of the auxiliary circuit board 4. When the auxiliary circuit board 4 is installed in place, the auxiliary circuit board 4 and the second conductive foam 8, as well as the isolation plate 3 and the second conductive foam 8, make elastic compression contact, thereby forming a continuous, low-impedance conductive grounding sealing surface between the isolation plate 3 and the auxiliary circuit board 4. This also fills the assembly gap between the isolation plate 3 and the auxiliary circuit board 4, eliminating electromagnetic leakage gaps, thus forming an all-round sealed shield on the auxiliary circuit board 4. This effectively prevents electromagnetic leakage and intrusion of the auxiliary circuit board 4, thereby ensuring the continuous, stable, and reliable function of the domain controller 100, ensuring the reliability of the domain controller 100's operation, and ultimately ensuring vehicle driving safety.

[0044] The second conductive foam 8 makes elastic contact with the grounded copper foil of the auxiliary circuit board 4 to form a continuous conductive sealing surface, thereby achieving full-enclosed shielding between the connection component area and the edge of the auxiliary circuit board 4.

[0045] Optionally, the second conductive foam 8 is bonded to the isolation plate 3 and the auxiliary circuit board 4.

[0046] Optionally, the outer edge of the second conductive foam 8 is flush with the outer edge of at least one of the isolation plate 3 and the auxiliary circuit board 4.

[0047] In some embodiments of the present invention, such as Figure 1 , Figure 4 and Figure 6 As shown, the isolation plate 3 has a through hole 31 extending through the isolation plate 3 in a first direction. The domain controller 100 also includes a shielding sleeve 5, which passes through the through hole 31. The connecting component for connecting the main circuit board 2 and the auxiliary circuit board 4 passes through the shielding sleeve 5. When the connecting component between the main circuit board 2 and the auxiliary circuit board 4 passes through the isolation plate 3, the tubular fully enclosed shielding channel formed by the metal shielding sleeve 5 ensures that the outside of the connecting component is always in a shielded grounded environment, preventing electromagnetic gaps from being formed due to the connecting component passing through the isolation plate 3. In addition, the signal transmission path of the connecting component is also effectively improved.

[0048] Through the cooperation of the isolation plate 3, the first conductive foam 6, the second conductive foam 8 and the shielding sleeve 5, two electromagnetically independent but electrically grounded but uncoupled shielding zones are formed on both sides of the isolation plate 3 in the first direction.

[0049] exist Figure 1 , Figure 4 and Figure 6 In the example shown, there is one shielding sleeve 5. One shielding sleeve 5 can reduce the processing cost of the isolation plate 3 and the usage cost of the shielding sleeve 5, and improve the assembly efficiency of the shielding sleeve 5.

[0050] Optionally, the shielding sleeve 5 is a metal tube. The shielding sleeve 5 is press-fitted with the through hole 31 to achieve a seal between the shielding sleeve and the through hole, or the shielding sleeve 5 is welded to the isolation plate 3 to achieve a seal between the shielding sleeve 5 and the through hole. At the same time, the shielding sleeve 5 and the isolation plate 3 are reliably grounded. A continuous conductive grounding shielding surface is formed by the isolation plate 3, the first conductive foam 6 and the shielding sleeve 5, and a continuous conductive grounding shielding surface is formed by the isolation plate 3, the second conductive foam 8 and the shielding sleeve 5, thus achieving true electromagnetic isolation.

[0051] Of course, the present invention is not limited to this. The perforation can be multiple, spaced apart, and the shielding sleeve 5 can be multiple, spaced apart, corresponding one-to-one with the multiple shielding holes.

[0052] In some embodiments of the present invention, the shielding cover 7 is made of nickel silver. Nickel silver has high conductivity, high magnetic permeability, good solderability, and structural stability. Furthermore, the nickel silver shielding cover 7 is suitable for both high-frequency and low-frequency shielding applications, effectively blocking electromagnetic leakage and intrusion from the main circuit board 2.

[0053] In some embodiments of the present invention, such as Figure 1 and Figure 2As shown, the housing 1 has air vents 14 on both sides opposite each other along the second direction, and grilles 15 are provided at the air vents 14. The first and second directions are perpendicular. The air vents 14 opposite each other along the second direction of the housing 1 are conducive to the formation of air convection, improve the efficiency of air cooling, reduce the internal temperature of the housing 1, and improve the continuous stability and reliability of the main circuit board 2 and auxiliary circuit board 4. This achieves both efficient heat dissipation and reliable shielding, enabling the domain controller 100 to maintain stable EMC performance under long-term high-load conditions.

[0054] The grille 15 can effectively block the entry of external insects and dust, preventing damage to the functions of the main circuit board 2 and the auxiliary circuit board 4.

[0055] like Figure 1 and Figure 2 As shown, on the same side of the housing 1 along the first direction, the air vent 14 includes a first region 141, a second region 142, and a third region 143 arranged along a third direction. The second region 142 is located between the first region 141 and the third region 143. The first region 141 and the third region 143 include a plurality of gratings spaced apart along the first direction, each grating extending along the third direction, with an air inlet gap defined between adjacent gratings extending along the third direction. The second region 142 also includes a plurality of gratings spaced apart along the third direction, each grating extending along the first direction, with an air inlet gap defined between adjacent gratings extending along the first direction. This not only makes the housing 1 aesthetically pleasing but also ensures the structural strength of the housing 1.

[0056] Furthermore, the grille 15 can be integrally formed with the housing 1 and the housing body 12, thereby reducing the number of parts and the assembly process between the grille 15 and the housing 1, thus improving the assembly efficiency of the domain controller 100, while also improving the structural strength of the housing 1, and ultimately improving the reliability of the domain controller 100.

[0057] In some embodiments of the present invention, such as Figure 1 , Figure 5 and Figure 7 As shown, the domain controller 100 also includes a connector 9 and a third conductive foam. The connector 9 passes through the connection side wall 16 of the housing 1 and is connected to the main circuit board 2 and / or the auxiliary circuit board 4. The main circuit board 2 and / or the auxiliary circuit board 4 transmit signals to the external devices of the domain controller 100 through the connector 9.

[0058] like Figure 5As shown, the third conductive foam is disposed on the inner surface of the connecting sidewall 16, and the connector 9 passes through the third conductive foam. The third conductive foam completely covers the connector 9 exposed inside the connecting sidewall 16, eliminating electromagnetic leakage gaps and effectively preventing electromagnetic leakage from the connector 9, ensuring the continuous, stable, and reliable function of the main circuit board 2 and the auxiliary circuit board 4. At the same time, the third conductive foam can also isolate the external interface area from the internal core control area, reduce external leakage and external interference immunity of the interface area, prevent external interference from directly intruding into the interior through the connector 9 interface, and suppress the radiation of internal high-frequency signals outward through the connector 9 interface.

[0059] In some embodiments of the present invention, such as Figure 1 As shown, the housing 1 includes a housing body 12 and a cover 11. The housing body 12 and the cover 11 together define a receiving cavity 13, which facilitates the assembly of components such as the isolation plate 3, the main circuit board 2, the auxiliary circuit board 4, the first conductive foam 6, the second conductive foam 8, and the shielding sleeve 5. The cover 11 and the housing body 12 are arranged and connected along a first direction. The first cavity and the second cavity are spaced apart in the first direction, which not only facilitates the stacking and assembly of components but also reduces the volume of the housing 1 and lowers the production cost of the housing 1.

[0060] In some embodiments of the present invention, such as Figure 1 and Figure 2 As shown, housing 1 is made of aluminum. The aluminum housing 1 possesses good mechanical strength and rigidity, effectively mitigating external impacts and pressures, thus protecting the internal components. The aluminum housing 1 also provides good electromagnetic shielding, reducing interference from external electromagnetic fields to internal components and vice versa. Furthermore, the aluminum housing 1 is lightweight and easy to process, improving production efficiency and reducing the weight of the domain controller 100. Additionally, the surface of the aluminum housing 1 naturally forms an oxide film, providing excellent corrosion resistance. Ultimately, this ensures the domain controller 100 functions continuously, stably, and reliably, thereby guaranteeing safe vehicle operation.

[0061] Optionally, the cover 11 and the shell body 12 of the shell 1 can be formed by die casting or sheet metal forming.

[0062] In some embodiments of the present invention, the inner surface of the housing 1 is provided with a conductive paint coating. After curing, the conductive paint coating forms a continuous conductive surface, which can effectively improve the shielding effectiveness of the housing 1 and reduce the surface contact resistance. In addition, the conductive paint coating can also compensate for the shielding degradation caused by uneven material and surface oxidation of the metal housing 1 itself, so that the overall housing 1 maintains a stable shielding effect over a wide frequency range and improves the overall shielding performance. Ultimately, this ensures the continuous, stable and reliable function of the domain controller 100, thereby ensuring the safe operation of the vehicle.

[0063] In some embodiments of the present invention, the domain controller 100 may be an intelligent driving domain controller applied to a vehicle.

[0064] This invention addresses the technical problems of existing domain controllers 100 in actual vehicle environments, such as discontinuous shielding and sealing, severe internal coupling, weak shielding in the connector area, EMC performance degradation under high and low temperature and vibration conditions, and incompatibility between heat dissipation and shielding. The invention proposes the aforementioned domain controller 100.

[0065] This invention achieves electromagnetic isolation between the first and second cavities within the housing 1 and sealed shielding of the connector 9 area through the aforementioned structure. The shielding cover 7 enables a synergistic design of dual shielding and zoned isolation, providing EMC (Electromagnetic Compatibility) protection through interference shielding and path isolation. Furthermore, the tight fit between the first conductive foam 6 and the second conductive foam 8 and the isolation plate 3, along with the placement of the third conductive foam, achieves comprehensive sealed shielding of the connector 9, main circuit board 2, and auxiliary circuit board 4. This solves the EMC weakness in the plug-in area of ​​traditional structures, achieving internal interlayer isolation and interface sealed shielding. The heat dissipation and shielding compatibility structure ensures stable performance under all operating conditions. This invention forms a complete electromagnetic protection system from the outside in, from the overall system to the local system, and from structure to circuitry, significantly improving the domain controller 100's anti-interference and radiation suppression capabilities in complex automotive electromagnetic environments. It optimizes electromagnetic compatibility performance across all scenarios, ensuring stable operation of the domain controller 100 in complex automotive environments and guaranteeing the continuous, stable, and reliable operation of intelligent driving functions.

[0066] This invention forms a multi-dimensional EMC protection system that is fully enclosed, fully isolated, fully sealed, and adaptable to all operating conditions. It effectively solves the defects of the existing domain controller 100, such as insufficient shielding and sealing, serious internal coupling, interface leakage, and poor adaptability to operating conditions, and significantly improves the working stability and reliability of the domain controller 100 in the complex electromagnetic environment of the vehicle.

[0067] The vehicle according to an embodiment of the present invention includes the domain controller 100 described above.

[0068] According to an embodiment of the present invention, in a vehicle equipped with the aforementioned domain controller 100, a receiving cavity 13 is provided within the housing 1, and an isolation plate 3 is placed within the receiving cavity 13. The isolation plate 3 divides the receiving cavity 13 into a first cavity and a second cavity spaced apart along a first direction. The main circuit board 2 is located in the first cavity, and the auxiliary circuit board 4 is located in the second cavity. A shielding cover 7 is placed on the main circuit board 2, forming a shielding cavity between the shielding cover 7 and the main circuit board 2. Multiple shielding covers 7 are spaced apart, and multiple shielding cavities are one-to-one corresponding to each other, with the multiple shielding cavities not communicating with each other. This not only achieves spatial separation between the main circuit board 2 and the auxiliary circuit board 4, preventing radiative coupling between the main circuit board 2 in the first cavity and the auxiliary circuit board 4 in the second cavity, but also ensures that different modules on the main circuit board 2 do not interfere with each other. Furthermore, in conjunction with the housing 1, it provides secondary protection, enhancing the electromagnetic protection of the modules on the main circuit board 2, thereby preventing electromagnetic interference between the main circuit board 2 and the auxiliary circuit board 4, ensuring the continuous, stable, and reliable function of the main circuit board 2 and the auxiliary circuit board 4, thus ensuring the reliability of the domain controller 100 and the safe operation of the vehicle.

[0069] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0070] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A domain controller, characterized in that, include: A housing (1) having a receiving cavity (13); A partition plate (3) is disposed in the receiving cavity (13) to divide the receiving cavity (13) into a first cavity and a second cavity spaced apart along a first direction; Main circuit board (2), the main circuit board (2) is disposed in the first cavity; Auxiliary circuit board (4) is disposed in the second cavity; A shielding cover (7) is located in the first cavity and is disposed on the main circuit board (2). A shielding cavity is formed between the shielding cover (7) and the main circuit board (2). There are multiple shielding covers (7) arranged at intervals. There are multiple shielding cavities that correspond one-to-one and the multiple shielding cavities are not connected to each other.

2. The domain controller according to claim 1, characterized in that, A first conductive foam (6) is provided between the isolation plate (3) and the main circuit board (2), and the first conductive foam (6) extends along the circumferential direction of the main circuit board (2); And / or, a second conductive foam (8) is provided between the isolation plate (3) and the auxiliary circuit board (4), the second conductive foam (8) extending along the circumferential direction of the auxiliary circuit board (4).

3. The domain controller according to claim 1 or 2, characterized in that, The isolation plate (3) is provided with a through hole (31) extending through the isolation plate (3) in a first direction, and the domain controller (100) further includes: A shielding sleeve (5) is inserted into the through hole (31), and a connecting component for connecting the main circuit board (2) and the auxiliary circuit board (4) is inserted into the shielding sleeve (5).

4. The domain controller according to claim 1, characterized in that, The shielding cover (7) is made of nickel silver.

5. The domain controller according to claim 1, characterized in that, The housing (1) has air vents (14) on both sides opposite to each other along the second direction, and the air vents (14) are provided with grilles (15). The first direction and the second direction are perpendicular.

6. The domain controller according to claim 1, characterized in that, Also includes: Connector (9), which passes through the connecting sidewall (16) of the housing (1) and is connected to the main circuit board (2) and / or the auxiliary circuit board (4); The third conductive foam is disposed on the inner surface of the connecting sidewall (16), and the connector (9) passes through the third conductive foam.

7. The domain controller according to claim 1, characterized in that, The housing (1) includes a housing body (12) and a cover (11). The cover (11) and the housing body (12) are arranged and connected along a first direction. The housing body (12) and the cover (11) together define the receiving cavity (13). The first cavity and the second cavity are spaced apart in the first direction.

8. The domain controller according to claim 1, characterized in that, The housing (1) is made of aluminum.

9. The domain controller according to claim 1, characterized in that, The inner surface of the housing (1) is provided with a conductive paint coating.

10. A vehicle, characterized in that, Includes a domain controller (100) according to any one of claims 1-9.

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