Vehicle and vehicle detection method

Abstract

The invention provides a vehicle and a vehicle detection method, relates to the technical field of vehicles, and is used for solving the problem that part of functions of an existing vehicle are prone to failing due to cable failure. The vehicle comprises a plurality of electrical systems and a plurality of circuit board assemblies. The plurality of circuit board assemblies are electrically connected with the plurality of electrical systems, and the plurality of electrical systems are electrically connected through the plurality of circuit board assemblies; wherein the circuit board assembly comprises a plurality of first circuit boards and a connecting busbar; the plurality of first circuit boards enclose an accommodating space with openings at two ends; the connecting busbar is connected with the first circuit boards and located on the periphery of the containing space defined by the multiple first circuit boards; according to the vehicle, the electrical system is connected through the circuit board assembly, and vehicle function faults caused by cable faults can be avoided.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a vehicle and a vehicle detection method. Background Art

[0002] With the improvement of people's living standards, cars have gradually become a necessary means of transportation for most families. Among them, with the continuous development of vehicle electrification, electric vehicles have gradually become the first choice of users.

[0003] As electric vehicles become more intelligent, the number of electrical devices in electric vehicles is also increasing. Generally, electrical devices use cables for power supply and data transmission, which leads to an increase in the number of cables in electric vehicles.

[0004] Since the quality of cables is difficult to control during production and installation, the cables connecting the electrical equipment in electric vehicles are prone to failure, which leads to failure of the corresponding functions in the electric vehicles, increasing the overall failure rate of electric vehicles and affecting the user experience. Summary of the invention

[0005] The purpose of the present application is to provide a vehicle and a vehicle detection method, which are used to solve the problem that existing vehicles are prone to malfunction of some vehicle functions due to cable failure.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows: In a first aspect, an embodiment of the present application provides a vehicle, comprising a plurality of electrical systems and a plurality of circuit board assemblies. The plurality of circuit board assemblies are electrically connected to the plurality of electrical systems, and the plurality of electrical systems are electrically connected through the plurality of circuit board assemblies. The circuit board assembly comprises a plurality of first circuit boards and a connecting busbar. The plurality of first circuit boards form a receiving space with openings at both ends. The connecting busbar is connected to the first circuit board and is located at the periphery of the receiving space formed by the plurality of first circuit boards.

[0007] According to the above-mentioned technical means, the vehicle provided by the embodiment of the present application, since multiple circuit board assemblies are electrically connected to multiple electrical systems, multiple electrical systems can be electrically connected through multiple circuit board assemblies. In this way, the electrical connection of multiple electrical systems is directly realized by using circuit board assemblies, without the need to use cables for connection, thereby avoiding the problem of partial functional failure of the vehicle caused by the prone failure of cables, and improving the performance of the vehicle. In addition, multiple first circuit boards can form a three-dimensional space structure, which can effectively utilize the three-dimensional space, making it more convenient to install during installation. By setting a connecting busbar, when the large current that needs to be transmitted by the electrical system electrical connection cannot be circulated through the first circuit board, the connecting busbar can be connected to the electrical system, and the connecting busbar is used to circulate a larger current.

[0008] In a possible implementation manner, the circuit board assembly further includes at least one second circuit board. The second circuit board is located in the accommodating space and connected to the first circuit board.

[0009] According to the above technical means, since the second circuit board is arranged in the accommodation space formed by the plurality of first circuit boards, space can be further saved, making installation more convenient. At the same time, by arranging the second circuit board, the circuit board assembly can make more electrical connections.

[0010] In a possible implementation, the vehicle further includes a connecting pipeline, and the connecting pipeline is arranged in the accommodating space.

[0011] According to the above technical means, through the accommodation space formed by the multiple first circuit boards, the connecting pipeline can be arranged in the accommodation space, thereby realizing the rational use of the space.

[0012] In a possible implementation, the vehicle further includes a connecting cable, and the connecting cable is passed through the accommodating space.

[0013] According to the above technical means, when some electrical connection lines of the electrical system cannot be connected through the circuit board, they can be connected using connecting cables. At the same time, since the connecting cables can be arranged in the accommodation space, reasonable use of space can also be achieved.

[0014] In a possible implementation manner, the vehicle further includes a filling material, and the filling material is filled in the accommodating space.

[0015] According to the above technical means, by providing a filling material, the connecting cables or connecting pipes located in the accommodating space can be kept stable and prevented from shaking back and forth.

[0016] In a possible implementation, the circuit board assembly further includes a housing, an installation space is formed inside the housing, and a plurality of first circuit boards are located in the installation space.

[0017] According to the above technical means, by providing a shell, the first circuit board can be arranged inside the shell, which plays a role in protecting the first circuit board and preventing the first circuit board from being directly impacted by the outside.

[0018] In a possible implementation, the housing is formed with a snap-in groove. The vehicle further includes a body. The body includes a beam structure. A portion of the beam structure is snap-into the snap-in groove and connected to the housing.

[0019] According to the above technical means, the circuit board assembly can also be installed on the beam structure through the clamping groove formed by the shell, and the installation is simple, convenient and easy to implement.

[0020] In a possible implementation, the vehicle further includes a plurality of temperature sensors, which are disposed on a plurality of circuit board assemblies and are used to detect the temperature of the circuit board assemblies.

[0021] According to the above technical means, the temperature of the circuit board assembly can be detected by multiple temperature sensors. When the temperature of the circuit board assembly is too high, the temperature sensor can be used to detect it in time to avoid safety hazards.

[0022] In a second aspect, an embodiment of the present application provides a vehicle detection method, comprising the steps of: detecting the temperature of multiple circuit board assemblies. Determining whether the temperature of the multiple circuit board assemblies is abnormal. Among them, detecting the temperature of the multiple circuit board assemblies includes: detecting the temperature of multiple first circuit boards, and the highest temperature among the multiple first circuit boards is the temperature of the circuit board assembly.

[0023] According to the above technical means, by judging whether the temperature of the circuit board assembly is abnormal, it is possible to judge whether the circuit board assembly fails, thereby avoiding the occurrence of safety hazards.

[0024] In a possible implementation, after detecting the temperatures of the plurality of circuit board assemblies, the vehicle detection method further includes: comparing the temperatures of the plurality of circuit board assemblies in pairs in sequence to obtain a plurality of sets of temperature difference values. Determining whether the temperatures of the plurality of circuit board assemblies are abnormal includes: comparing the plurality of sets of temperature difference values ​​with preset temperature difference values ​​respectively, and if the temperature difference values ​​are greater than the preset temperature difference values, the temperature of the circuit board assembly is abnormal.

[0025] According to the above technical means, by comparing the temperature difference between the circuit board assemblies, if the temperature difference between the circuit board assemblies is too high and greater than the preset temperature difference, it can be determined that one of the two groups of circuit board assemblies has a higher temperature and the circuit board assembly may have failed.

[0026] In a possible implementation, determining whether the temperatures of the plurality of circuit board assemblies are abnormal includes: comparing the temperatures of the plurality of circuit board assemblies with a preset temperature; if the temperatures of the circuit board assemblies are greater than the preset temperature, the temperatures of the circuit board assemblies are abnormal.

[0027] According to the above technical means, by directly comparing the temperature of the circuit board assembly with the preset temperature, when the temperature of the circuit board assembly is too high and greater than the preset temperature, it can be determined that the circuit board assembly has a high temperature and the circuit board assembly may fail. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of the structure of a vehicle provided in an embodiment of the present application; Figure 2 A schematic diagram of the structure of another vehicle provided in an embodiment of the present application; Figure 3 A schematic diagram of the structure of a circuit board assembly provided in an embodiment of the present application; Figure 4 A schematic diagram of the structure of another circuit board assembly provided in an embodiment of the present application; Figure 5 A schematic diagram of the structure of another circuit board assembly provided in an embodiment of the present application; Figure 6 A schematic diagram of the structure of a circuit board assembly provided in an embodiment of the present application with connecting pipes and connecting cables; Figure 7 A schematic diagram of the structure of another circuit board assembly provided in an embodiment of the present application, in which a connecting pipe and a connecting cable are provided; Figure 8 A schematic diagram of the structure when the circuit board assembly provided in the embodiment of the present application is arranged inside the beam structure; Fig. 9 A schematic diagram of the structure of another circuit board assembly provided in an embodiment of the present application; Fig.10 One of the flow charts of a vehicle detection method provided in an embodiment of the present application; Fig.11 A block diagram of a connection between a power management unit and a circuit board assembly provided in an embodiment of the present application; Fig.12 A second flow chart of a vehicle detection method provided in an embodiment of the present application; Fig.13 A third flow chart of a vehicle detection method provided in an embodiment of the present application; Fig.14 A fourth flow chart of a vehicle detection method provided in an embodiment of the present application; Fig.15 A fifth flow chart of a vehicle detection method provided in an embodiment of the present application.

[0029] Reference numerals: 100-vehicle; 10-body; 101-beam structure; 20-circuit board assembly; 201-chamber; 21-first circuit board; 22-connecting busbar; 23-second circuit board; 24-housing; 241-clip-on slot; 30-connecting pipe; 40-connecting cable; 50-power management unit; 60-power channel; 61-unit channel; 70-temperature sensor. DETAILED DESCRIPTION

[0030] In order to enable ordinary persons in the art to better understand the technical solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0031] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

[0032] Based on this, the embodiment of the present application provides a vehicle. The embodiment of the present application does not specifically limit the specific type of the vehicle. For example, the vehicle provided in the embodiment of the present application can be an electric car, a hybrid car, or a solar car.

[0033] like Figure 1 As shown, the vehicle 100 provided in the embodiment of the present application may include a vehicle body 10. Among them, the vehicle body 10 may include a vehicle frame, a vehicle door and a vehicle window. The vehicle frame may form the overall shape structure of the exterior of the vehicle 100 and form a seating space for accommodating passengers. The vehicle door may be rotatably connected to the vehicle frame and may open or close the internal driving and riding space. The vehicle window may be installed on the vehicle door or the vehicle frame to facilitate passengers to observe the external environment.

[0034] In addition, in order to realize the basic functions of the vehicle 100, the vehicle 100 may also include a plurality of electrical systems. Among them, the electrical system may be operated by power supply. It is understood that the specific type of the electrical system may be selected according to actual conditions. For example, the plurality of electrical systems may include systems such as a cockpit system, a battery management system, and an intelligent driving system that require power supply and data transmission. In addition, illustratively, the electrical system may also include components such as a drive system and a power system.

[0035] Among them, the drive system can drive the wheels to rotate. According to the different driving modes of the drive system, the drive system can be divided into front-wheel drive, rear-wheel drive and four-wheel drive and other layouts.

[0036] The power system can provide power for the vehicle 100 so that the vehicle 100 can complete basic driving functions. The composition of the power system varies according to the type of the vehicle 100. For example, when the vehicle 100 is an electric vehicle, the power system may include an electric motor.

[0037] In order to realize the circuit connection between multiple electrical systems, such as Figure 1As shown, the vehicle 100 provided in the embodiment of the present application may further include a circuit board assembly 20. Multiple circuit board assemblies 20 may be electrically connected to multiple electrical systems. Multiple electrical systems may be electrically connected through multiple circuit board assemblies 20. Thus, the electrical systems may be electrically connected through the circuit board assembly 20, and the circuit board assembly 20 may realize functions such as power supply and data transmission of the electrical systems.

[0038] It is understandable that the electrical connection relationship between the multiple electrical systems can be designed according to actual conditions. For example, the battery management system in the electrical system can be electrically connected to the power battery through the circuit board assembly 20.

[0039] Therefore, in the vehicle 100 provided by the embodiment of the present application, since the multiple circuit board assemblies 20 are electrically connected to the multiple electrical systems, the multiple electrical systems can be electrically connected through the multiple circuit board assemblies 20. In this way, the electrical connection of the multiple electrical systems is directly achieved by using the circuit board assemblies 20, without the need to use cables for connection, thereby avoiding the problem of partial functional failure of the vehicle 100 caused by the easy failure of the cables, and improving the performance of the vehicle 100.

[0040] In addition, since multiple electrical systems are electrically connected through multiple circuit board assemblies 20, the circuit board assemblies 20 can be directly industrialized and automated, which improves production efficiency and avoids quality problems caused by manual production. At the same time, compared with cables, the circuit board assemblies 20 are more regular and more compact, which can save installation space and are neater after installation.

[0041] For example, in order to realize the electrical connection between the circuit board assembly 20 and the electrical system, a socket may be designed on the circuit board assembly 20. The circuit board assembly 20 and the electrical system may be electrically connected by plugging.

[0042] It is understood that the circuit board assembly 20 can be disposed at different locations of the vehicle 100 to facilitate its connection with the electrical system. Figure 1 and Figure 2 As shown, the circuit board assembly 20 can be installed at various positions of the vehicle body 10 to form a basic frame structure of the entire vehicle, so that the electrical systems arranged at various positions can be electrically connected to the surrounding circuit board assemblies 20.

[0043] In some embodiments, Figure 3 As shown, the circuit board assembly 20 may include a plurality of first circuit boards 21. The plurality of first circuit boards 21 surround a receiving space with openings at both ends. In this way, the plurality of first circuit boards 21 may form a three-dimensional space structure, which may effectively utilize the three-dimensional space, making it more convenient to install.

[0044] It is understandable that the number of the first circuit boards 21 can be designed according to actual conditions. Figure 3 As shown, the number of the first circuit boards 21 can be four. The four first circuit boards 21 together form a square space area. Of course, the first circuit boards 21 can also be other numbers. For example, the first circuit boards 21 can also be three or five.

[0045] Of course, when the circuit board assembly 20 needs to connect fewer electrical systems, in other embodiments, the circuit board assembly 20 may also include only one first circuit board 21. In this case, a single first circuit board 21 can complete the connection between the electrical systems.

[0046] In some embodiments, Figure 4 As shown, the circuit board assembly 20 further includes a connecting busbar 22. The connecting busbar 22 is connected to the first circuit board 21 and is located at the periphery of the accommodation space surrounded by the plurality of first circuit boards 21. By providing the connecting busbar 22, when the large current that needs to be transmitted by the electrical connection of the electrical system cannot flow through the first circuit board 21, the connecting busbar 22 can be connected to the electrical system, and the connecting busbar 22 is used to flow the large current.

[0047] Exemplarily, the connecting busbar 22 can be used to connect a redundant power supply in an intelligent driving system, a redundant power supply in a wire-controlled chassis system, or high-power devices such as pedals.

[0048] It is understandable that the connecting busbar 22 can be made of metal material. Exemplarily, the connecting busbar 22 can be made of metal copper or aluminum. Of course, the connecting busbar 22 can also be made of other metal materials as long as the conductive function can be achieved.

[0049] In addition, in some embodiments, the number of the connecting busbars 22 can be multiple. In this way, multiple electrical connections can be made through multiple connecting busbars 22, making the connection more efficient. Of course, in other embodiments, the number of the connecting busbar 22 can also be one, which can be specifically designed according to actual conditions.

[0050] In some embodiments, Figure 5 As shown, the circuit board assembly 20 further includes at least one second circuit board 23. The second circuit board 23 is located in the accommodation space and connected to the first circuit board 21. In this way, since the second circuit board 23 is arranged in the accommodation space formed by the plurality of first circuit boards 21, space can be further saved, making installation more convenient. At the same time, by providing the second circuit board 23, the circuit board assembly 20 can make more electrical connections.

[0051] For example, Figure 6As shown, there may be more than one second circuit board 23. The plurality of second circuit boards 23 may divide the accommodation space into chambers 201. Of course, the number of the second circuit board 23 may also be one, which may be specifically set according to actual conditions.

[0052] In some other embodiments, the circuit board assembly 20 may not include the second circuit board 23. In this case, the electrical system may be electrically connected only through the first circuit board 21.

[0053] In some embodiments, Figure 6 As shown, the vehicle 100 further includes a connecting pipe 30. The connecting pipe 30 is arranged in the accommodation space. Thus, the accommodation space formed by the plurality of first circuit boards 21 can be used to arrange the connecting pipe 30 in the accommodation space, thereby realizing reasonable use of the space. Exemplarily, the connecting pipe 30 can be a connecting pipe 30 for circulating washing water, oil pipe or cooling medium.

[0054] In some embodiments, Figure 6 As shown, the vehicle 100 further includes a connecting cable 40. The connecting cable 40 is inserted into the accommodation space. When some electrical connection lines of the electrical system cannot be connected through the circuit board, the connecting cable 40 can be used for connection. At the same time, since the connecting cable 40 can be arranged in the accommodation space, the space can also be reasonably utilized. Exemplarily, the connecting cable 40 can be a cable for coaxial transmission, Ethernet transmission, high speed data (High Speed ​​Data, HSD) transmission, and universal serial bus (Universal Serial Bus, USB) transmission.

[0055] In some embodiments, the vehicle 100 further includes a filling material. The filling material is filled in the accommodation space. By providing the filling material, the connecting cable 40 or the connecting pipeline 30 located in the accommodation space can be kept stable to avoid shaking back and forth. Exemplarily, the filling material can be a soft material such as foam. Alternatively, the filling material can also be a material such as a sealant.

[0056] In some embodiments, Figure 7 As shown, the circuit board assembly 20 further includes a housing 24. An installation space is formed inside the housing 24. A plurality of first circuit boards 21 are located in the installation space. Thus, by providing the housing 24, the first circuit boards 21 can be arranged inside the housing 24, which plays a role in protecting the first circuit boards 21 and preventing the first circuit boards 21 from being directly hit by the outside.

[0057] In some embodiments, Figure 8As shown, the vehicle body 10 may include a beam structure 101. The circuit board assembly 20 may be disposed inside the beam structure 101. In this way, the beam structure 101 as a whole may protect the circuit board assembly 20. At the same time, the circuit board assembly 20 may be conveniently installed by utilizing the internal space of the beam structure 101 without occupying additional space at other locations.

[0058] In some embodiments, Fig. 9 As shown, the housing 24 is formed with a snap-in groove 241. The beam structure 101 ( Figure 8 ) is engaged in the engaging groove 241 and connected to the housing 24. In this way, the circuit board assembly 20 can also be installed on the beam structure 101 through the engaging groove 241 formed by the housing 24, and the installation is simple, convenient and easy to implement.

[0059] In some embodiments, the vehicle 100 further includes a plurality of temperature sensors. The plurality of temperature sensors are disposed on the plurality of circuit board assemblies 20 to detect the temperature of the circuit board assemblies 20. Thus, the temperature of the circuit board assemblies 20 can be detected by the plurality of temperature sensors. When the temperature of the circuit board assemblies 20 is too high, the temperature sensors can be used to detect it in time to avoid potential safety hazards.

[0060] The present application also provides a vehicle detection method, such as Fig.10 As shown, the detection method includes steps S100-S200.

[0061] S100: Detect the temperature of multiple circuit board components. For example, Fig.11 As shown, the temperature of the circuit board assembly 20 can be obtained by the temperature sensor 70. The power management unit 50 of the vehicle is connected to the multiple unit channels 61 of the power channel 60, and can control the conduction and disconnection of the power channel 60. At the same time, the power management unit 50 is also electrically connected to the temperature sensors 70 on the multiple circuit board assemblies 20. In this way, the temperature detected by the temperature sensor 70 can be transmitted to the power management unit 50.

[0062] S200: Determine whether the temperature of the multiple circuit board assemblies is abnormal. By determining whether the temperature of the circuit board assemblies is abnormal, it is possible to determine whether the circuit board assemblies are faulty, thereby avoiding the occurrence of safety hazards. Fig.11 If one group of circuit board assemblies 20 has an excessively high temperature and fails, the corresponding unit channel 61 can be disconnected by the power management unit 50 to prevent the temperature of the circuit board assembly 20 that may fail from continuing to rise.

[0063] Wherein, when the circuit board assembly 20 includes a plurality of first circuit boards 21 ( Figure 3), detecting the temperature of the plurality of circuit board assemblies 20 includes: detecting the temperature of the plurality of first circuit boards 21, and the highest temperature among the plurality of first circuit boards 21 is the temperature of the circuit board assembly 20. In this way, the temperature of the circuit board assembly 20 is the highest temperature among the plurality of first circuit boards 21, ensuring that the temperature used to determine whether the temperature of the circuit board assembly 20 is abnormal is the highest temperature of each first circuit board 21 in the circuit board assembly 20, ensuring that the detection result is safe and reliable.

[0064] In some embodiments, after the temperatures of the plurality of circuit board components are detected, Fig.12 As shown, the vehicle detection method may further include step S300.

[0065] S300: Compare the temperatures of the plurality of circuit board components in pairs in sequence to obtain a plurality of groups of temperature difference values.

[0066] Determining whether the temperatures of the plurality of circuit board assemblies are abnormal includes step S201.

[0067] S201: Compare the multiple groups of temperature differences with the preset temperature differences respectively. If the temperature difference is greater than the preset temperature difference, the temperature of the circuit board assembly is abnormal. In this way, by comparing the temperature difference between the circuit board assemblies, if the temperature difference of the circuit board assemblies is too high and greater than the preset temperature difference, it can be determined that one of the two groups of circuit board assemblies has a higher temperature, and the circuit board assembly may have a fault.

[0068] It is understandable that the detection time of the circuit board assembly can be designed according to actual conditions. For example, the temperature of one side of the circuit board assembly can be detected every 100 ms to obtain the temperature difference.

[0069] Different preset temperature differences may be set for different ambient temperatures and operating conditions. For example, a different preset temperature difference may be set for every 5°C change in ambient temperature. When the ambient temperature is 25°C, the preset temperature difference may be a first preset temperature difference. When the ambient temperature is 30°C, the preset temperature difference may be a second preset temperature difference. The first preset temperature difference and the second preset temperature difference may be different.

[0070] As an example, based on the steps of the above scheme, the complete detection process can be as follows Fig.13As shown. First, the vehicle is powered on. Then the power management unit uses the temperature sensor to detect the temperature difference every 100ms, and compares the temperature difference with the preset temperature difference. If the temperature difference is less than or equal to the preset temperature difference, the temperature difference detection is repeated. If the temperature difference is greater than the preset temperature difference, the vehicle will issue an abnormal reminder and can perform a self-check after parking. Specifically, the different unit channels of the circuit board assembly itself can be used to power on and off each unit channel of the circuit board assembly, perform temperature difference detection, and find the abnormal unit channel. Among them, if the temperature difference decreases after disconnecting a unit channel, it means that the unit channel is an abnormal unit channel, and a high temperature abnormality will occur when the channel is connected.

[0071] Of course, in other embodiments, such as Fig.14 As shown, determining whether the temperatures of the plurality of circuit board assemblies are abnormal includes step S202.

[0072] S202: Compare the temperature of the plurality of circuit board assemblies with a preset temperature. If the temperature of the circuit board assembly is greater than the preset temperature, the temperature of the circuit board assembly is abnormal. In this way, by directly comparing the temperature of the circuit board assembly with the preset temperature, when the temperature of the circuit board assembly is too high and greater than the preset temperature, it can be determined that the circuit board assembly has a high temperature and the circuit board assembly may fail.

[0073] Further, such as Fig.15 As shown, after determining that the temperature of the circuit board assembly is greater than the preset temperature, it can be further determined whether the temperature of the circuit board assembly exceeds the alarm temperature. If it exceeds the alarm temperature, the vehicle will be stopped immediately and the power supply will be stopped. Finally, the vehicle will be powered off. If the temperature of the circuit board assembly does not exceed the alarm temperature, the unit channel corresponding to the circuit board assembly with too high a temperature can be disconnected first, and then it is determined whether the accumulated temperature exceeds T0 in the next cycle. If it does not exceed T0, the vehicle can continue to drive. If it exceeds T0, the vehicle needs to be stopped and the power supply stopped for inspection.

[0074] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A vehicle, characterized in that: include: multiple electrical systems; as well as, A plurality of circuit board assemblies (20), wherein the plurality of circuit board assemblies (20) are connected to the plurality of electrical systems; A plurality of the electrical systems are electrically connected via a plurality of the circuit board assemblies (20); Wherein, the circuit board assembly (20) comprises: A plurality of first circuit boards (21), wherein the plurality of first circuit boards (21) enclose a receiving space having openings at both ends; and A connecting busbar (22), the connecting busbar (22) being connected to the first circuit board (21) and being located at the periphery of the accommodation space surrounded by the plurality of first circuit boards (21).

2. The vehicle according to claim 1, characterized in that The circuit board assembly (20) further comprises: At least one second circuit board (23), the second circuit board (23) being located in the accommodating space and connected to the first circuit board (21).

3. The vehicle according to claim 1, characterized in that The vehicle (100) further comprises: A connecting pipeline (30) is arranged in the accommodating space; and / or, A connecting cable (40) is inserted into the accommodation space.

4. The vehicle according to claim 3, characterized in that The vehicle (100) further comprises: A filling material is filled in the accommodating space.

5. The vehicle according to claim 1, characterized in that The circuit board assembly (20) further comprises: A housing (24), wherein an installation space is formed inside the housing (24); a plurality of first circuit boards (21) are arranged in the installation space.

6. The vehicle according to claim 5, characterized in that The housing (24) is formed with a snap-on groove (241); the vehicle (100) further comprises: A vehicle body (10), the vehicle body (10) comprising a beam structure (101); a portion of the beam structure (101) is snap-fitted into the snap-fitting groove (241) and connected to the outer shell (24).

7. The vehicle according to claim 1, characterized in that The vehicle (100) further comprises: A plurality of temperature sensors are provided on a plurality of circuit board assemblies (20) and are used to detect the temperature of the circuit board assemblies (20).

8. A vehicle detection method according to any one of claims 1 to 7, characterized in that: include: Detecting the temperatures of a plurality of circuit board assemblies (20); as well as, Determining whether the temperatures of the plurality of circuit board assemblies (20) are abnormal; Wherein, detecting the temperature of the plurality of circuit board assemblies comprises: The temperatures of the plurality of first circuit boards are detected, and the highest temperature among the plurality of first circuit boards is the temperature of the circuit board assembly.

9. The vehicle detection method according to claim 8, characterized in that: After detecting the temperatures of the plurality of circuit board assemblies (20), the detection method of the vehicle (100) further comprises: Comparing the temperatures of the plurality of circuit board assemblies (20) in sequence in pairs to obtain a plurality of groups of temperature difference values; Determining whether the temperatures of the plurality of circuit board assemblies (20) are abnormal comprises: The plurality of groups of temperature difference values ​​are respectively compared with preset temperature difference values; if the temperature difference value is greater than the preset temperature difference value, the temperature of the circuit board assembly (20) is abnormal.

10. The vehicle detection method according to claim 8, characterized in that: Determining whether the temperatures of the plurality of circuit board assemblies (20) are abnormal comprises: The temperatures of the plurality of circuit board assemblies (20) are compared with a preset temperature; if the temperature of the circuit board assembly (20) is greater than the preset temperature, the temperature of the circuit board assembly (20) is abnormal.

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