Vehicle power distribution system and vehicle

Abstract

The utility model relates to a vehicle power distribution system and a vehicle, in the vehicle power distribution system, a first type of power supply distribution line is configured on a symmetry axis in the left-right direction of the vehicle and extends in the front-back direction of the vehicle; the first type power distribution line extends in the left-right direction of the vehicle at at least one of the two ends extending in the front-back direction of the vehicle. The power distribution module is connected with a first-type power distribution line; the distribution voltage of the first type of power distribution lines is different from the distribution voltage of the second type of power distribution lines; the second type power distribution line is not arranged on the symmetry axis of the vehicle in the left-right direction. Through the arrangement, power distribution can be more dispersed. Compared with the mode that two types of wire harnesses are arranged together in the prior art, the distance between the two types of wire harnesses is longer, and electromagnetic interference is smaller. In addition, since the first type of power distribution wires are arranged in the middle of the vehicle, the wiring length is shorter than that arranged on the left and right sides of the vehicle, and electromagnetic interference can be reduced.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, specifically to a vehicle power distribution system and a vehicle. Background Technology

[0002] In vehicles, the power supply voltage of wiring harnesses related to the vehicle's drive is generally several hundred volts, while the power supply voltage of non-operational system wiring harnesses (wiring harnesses unrelated to driving the wheels of electric vehicles) is less than 60V, such as 12V, 36V, or 48V.

[0003] In the realm of gasoline-powered vehicles, due to the relatively small electrical loads, automobiles primarily rely on 12V low-voltage systems. However, with the development of intelligent and electric vehicles, the high-voltage loads on cars are increasing. To increase the low-voltage load limit of automobiles, the traditional 12V low-voltage power supply system is gradually being transformed into a higher-voltage power supply system.

[0004] Currently, most vehicles retain two different power supply systems simultaneously, and the combined wiring of these systems can lead to strong electromagnetic interference. Therefore, how to design the vehicle's power distribution system is an urgent problem to be solved. Utility Model Content

[0005] One objective of this application is to provide a vehicle power distribution system to solve the problem of strong electromagnetic interference caused by the wiring configuration of two different power supply systems in the prior art; the second objective is to provide a vehicle.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0007] This application provides a vehicle power distribution system, the vehicle power distribution system comprising: a first type of power distribution line, a first type of voltage device, a power distribution module, a second type of power distribution line, and a second type of voltage device.

[0008] The first type of power distribution line is arranged on the axis of symmetry in the left-right direction of the vehicle and extends in the front-rear direction of the vehicle; at least one end of the first type of power distribution line extending in the front-rear direction of the vehicle extends in the left-right direction of the vehicle.

[0009] The first type of power distribution cable is connected to the first type of voltage device;

[0010] The power distribution module is connected to the first type of power distribution line, and the power distribution module is used to provide a first voltage to the first type of power distribution line;

[0011] The distribution voltage of the first type of power distribution line is different from that of the second type of power distribution line;

[0012] The second type of power distribution line is connected to the second type of voltage device, and the second type of power distribution line is not arranged on the axis of symmetry in the left and right directions of the vehicle.

[0013] Based on the aforementioned technical methods, placing the first type of power distribution cable on the symmetrical axis of the vehicle's left-right direction, while placing the second type of power distribution cable at a different location, allows for more distributed power distribution. Compared to the existing method of placing the two types of cable harnesses together, the spacing between the two types of cable harnesses is longer, resulting in less electromagnetic interference. Furthermore, since the first type of power distribution cable is located in the middle of the vehicle, its routing length is shorter than that on the left or right sides, further reducing electromagnetic interference. The shorter cable length also reduces the likelihood of damage to inactive cable harnesses due to impact during a vehicle accident.

[0014] Furthermore, the second type of power distribution cable is located on the left and right sides of the vehicle and extends along the front-to-back direction of the vehicle.

[0015] Based on the above technical means, the main trunk lines of the second type of power distribution line and the first type of power distribution line are set in parallel, so that the distance between the two is the same at all points, which will not cause large electromagnetic interference changes and improve stability.

[0016] Furthermore, the power distribution module is connected to the second type of power distribution line, and the power distribution module is also used to provide a second voltage to the second type of power distribution line;

[0017] Based on the above technical means, the second type of power distribution line and the first type of power distribution line are supplied with power independently, which helps to simplify system design and troubleshooting. The voltage of each type of power supply can be adjusted independently as needed to adapt to different electrical requirements, reduce potential risks in the voltage conversion process, and lower the possibility of system problems.

[0018] Furthermore, the vehicle configuration system also includes a power conversion module;

[0019] The power conversion module is connected to the first type of power distribution line and the second type of power distribution line respectively, and the power conversion module is used to convert the first voltage into the second voltage.

[0020] Based on the above technical means, the voltage of the second type of power distribution line is converted from the voltage of the first type of power distribution line. The two are a power supply system. Voltage conversion is achieved through a power conversion module, and the voltage conversion and power distribution functions are centrally managed, making the system design more integrated.

[0021] Furthermore, the vehicle configuration system also includes a power conversion module;

[0022] The first type of power distribution cable is connected at its end to the power conversion module, which is used to convert the first voltage into a second voltage.

[0023] The power conversion module is connected to the second type of power distribution cable.

[0024] According to the above technical means, the voltage is converted into a second voltage at the end of the first type of power distribution line and transmitted to the second type of power distribution line set in the end area. The first type of power distribution line no longer adopts the method of being laid out at both ends of the vehicle, and the main routing of the first type of power distribution line is directly eliminated, reducing electromagnetic interference between the two types of wire harnesses.

[0025] Furthermore, the second type of power distribution cable extends along the front-to-back direction of the vehicle.

[0026] Based on the above technical means, the main trunk lines of the second type of power distribution line and the first type of power distribution line are set in parallel, so that the distance between the two is the same at all points, which will not cause large electromagnetic interference changes and improve stability.

[0027] Furthermore, the distribution voltage of the first type of power distribution line is greater than the distribution voltage of the second type of power distribution line.

[0028] Based on the above technical means, high distribution voltages are set for transmission on the main line to reduce voltage loss.

[0029] Furthermore, the distribution voltage of the first type of power distribution line is 48V, and the distribution voltage of the second type of power distribution line is 12V.

[0030] Furthermore, both the first type of power distribution wire and the second type of power distribution wire are flat wires.

[0031] Based on the aforementioned technical methods, a flat line layout is adopted to reduce wiring difficulty and improve automated assembly efficiency.

[0032] This application also provides a vehicle that includes the vehicle power distribution system described in any of the preceding claims.

[0033] The beneficial effects of this application are:

[0034] (1) In this application, the first type of power distribution wire is arranged on the axis of symmetry in the left-right direction of the vehicle, while the second type of power distribution wire is arranged at a different position than the first type of power distribution wire, which can make the power distribution more distributed. Compared with the prior art, which arranges the two types of wire harnesses together, the spacing between the two types of wire harnesses is longer and the electromagnetic interference is less. In addition, since the first type of power distribution wire is arranged in the middle of the vehicle, the wiring length is shorter than that arranged on the left and right sides of the vehicle, which can also reduce electromagnetic interference. Furthermore, the shorter power harness length can also reduce the possibility of damage to non-operating wire harnesses due to the impact of a vehicle accident.

[0035] (2) In this application, the first type of power distribution line is converted into a second voltage at the end and supplied to the second type of power distribution line set in the end area. The first type of power line is no longer laid out at both ends of the vehicle. The main routing of the first type of power line is directly eliminated, reducing electromagnetic interference between the two types of wire harnesses. Attached Figure Description

[0036] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0037] Figure 1 This is a schematic diagram of the structure of a vehicle power distribution system according to a first embodiment of the present application;

[0038] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of the vehicle power distribution system provided in this application;

[0039] Figure 3 This is a schematic diagram of the structure of Embodiment 3 of the vehicle power distribution system provided in this application;

[0040] Figure 4 This is a schematic diagram of the structure of Embodiment 4 of the vehicle power distribution system provided in this application;

[0041] Figure 5 This is a schematic diagram of the structure of Embodiment 5 of the vehicle power distribution system provided in this application;

[0042] Figure 6 A schematic diagram of the power distribution for the high-voltage and low-voltage systems provided in this application.

[0043] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0044] The embodiments of this application will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. This application can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be understood that the preferred embodiments are only for illustrating this application and are not intended to limit the scope of protection of this application.

[0045] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. Therefore, the drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0046] Vehicle power supply systems are mainly based on 12V low-voltage systems. However, with the development of vehicles, the high-voltage loads on vehicles are increasing, and the 12V voltage system has basically reached its power output limit. In order to increase the low-voltage load limit of automobiles, the traditional 12V low-voltage power supply system has gradually been transformed into a 48V power supply system.

[0047] Currently, most vehicles are equipped with both 48V and 12V power harnesses, located on the left and right sides of the vehicle, and the wiring is routed together. Running two harnesses of different voltages together can generate electromagnetic interference, potentially affecting the normal operation of equipment.

[0048] In view of this, since new energy vehicles do not have complex engines, transmissions, etc. occupying space, the first type of power distribution lines (e.g., 48V) can be placed in the middle of the vehicle and separated from the second type of power distribution lines (e.g., 12V), reducing wiring harness complexity and electromagnetic interference, reducing energy consumption of the wiring harness, and reducing the risk of short circuits. Based on this, this application proposes a vehicle power distribution system and a vehicle.

[0049] The vehicle power distribution system provided in this application is applicable not only to the configuration of 48V and 12V power lines, but also to the configuration of any two power harnesses with different voltages.

[0050] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0051] Figure 1This is a schematic diagram of the structure of a vehicle power distribution system according to an embodiment of the present application. The vehicle power distribution system includes: a first type of power distribution line, a first type of voltage device, a power distribution module, a second type of power distribution line, and a second type of voltage device.

[0052] exist Figure 1 In the diagram, thick solid lines represent Class I power distribution lines, thin solid lines represent Class II power distribution lines, solid-line boxes represent Class I voltage devices, and dashed-line boxes represent Class II voltage devices.

[0053] like Figure 1 As shown, the first type of power distribution cable is arranged on the axis of symmetry in the left-right direction of the vehicle and extends along the front-rear direction of the vehicle. At least one end of the first type of power distribution cable extending along the front-rear direction of the vehicle extends along the left-right direction of the vehicle. Figure 1 The image only shows one end of the Type I power distribution cable extending along the front-rear direction of the vehicle, while extending it laterally in a "T" shape. The electrical load distribution in a vehicle is typically uneven; extending the cable laterally allows for better support of various components within the vehicle, avoiding the problems associated with long-distance cable routing, resulting in a more rational cable arrangement and reduced interference and loss. Furthermore, extending laterally allows the Type I power distribution cable to be closer to the load points on both sides of the vehicle, thus providing a more even power distribution, reducing voltage drop, and improving the stability of the electrical system. It should be noted that front-rear and lateral extensions represent the routing trend, which may be affected by the structure of vehicle components or the location of devices, altering the routing path. For example, the vehicle chassis may contain areas of varying elevations, requiring the cable layout to adapt to these structural changes, resulting in elevation variations during the routing process.

[0054] In some embodiments, the first type of power distribution cable extends in the left-right direction of the vehicle at both ends (not shown in the figure).

[0055] Type I power distribution lines connect to Type I voltage devices. Type I power distribution lines transmit a first voltage and connect to the corresponding Type I voltage devices.

[0056] The power distribution module is connected to a first-type power distribution line and is used to provide a first voltage to the first-type power distribution line. The power source for the power distribution module can be a storage battery, and / or voltage converted from a power battery via a DC-DC converter.

[0057] The distribution voltage of the first type of power distribution line is different from that of the second type of power distribution line; preferably, the distribution voltage of the first type of power distribution line is greater than that of the second type of power distribution line.

[0058] The second type of power distribution line connects to the second type of voltage device. This second type of power distribution line is not positioned on the symmetrical axis of the vehicle's left-right direction. The vehicle contains another set of power distribution lines, namely the second type of power distribution line. This second type of power distribution line transmits a different voltage than the first type of power distribution line, and its placement differs from the first type of power distribution line; it can be located on the left or right sides of the vehicle, or at the end of the first type of power distribution line.

[0059] Optionally, after the first voltage passes through the first type of voltage device, it can continue to output the first voltage. If the first type of voltage device integrates power conversion function, it can also input the second voltage.

[0060] By placing the first type of power distribution cable along the symmetrical axis of the vehicle's left-right direction, and placing the second type of power distribution cable at a different location, the power distribution becomes more distributed. Compared to the existing technology that places the two types of cable harnesses together, the spacing between the two types of cable harnesses is longer, resulting in less electromagnetic interference. Furthermore, since the first type of power distribution cable is placed in the middle of the vehicle, its routing length is shorter than that on the left or right sides, further reducing electromagnetic interference. The shorter cable length also reduces the likelihood of damage to inactive cable harnesses due to impact during a vehicle accident.

[0061] In some other embodiments, the first type of power distribution cable extends only forward and backward along the left and right axes of symmetry of the vehicle.

[0062] The following details why and how to configure settings to reduce electromagnetic interference.

[0063] The three main elements of electromagnetic interference (EMI) are: the interference source, the propagation path, and the sensitive element. Automotive wiring harnesses connect power supplies, electronic devices, and ground, and can generally be considered a propagation path; however, in special cases, they can also act as a sensitive element or interference source. Bundling multiple wiring harnesses together, with varying currents from different voltage sources, can cause crosstalk between the wires, radiating electromagnetic waves that interfere with the operation of electronic devices inside and outside the vehicle. Therefore, the power distribution method of the power harness is extremely important, as it helps reduce overall vehicle EMI.

[0064] Electromagnetic interference is divided into two categories: conducted interference and radiated interference.

[0065] Conducted interference mainly refers to interference signals generated by electronic and electrical equipment that propagate through conductive media or common power lines. It can be transmitted through power lines, grounding wires, signal lines, or other physical connections. When a signal or interference source from one circuit propagates to other circuits through physical connections, conducted interference occurs. To reduce the impact of conducted interference, power line bundles should be distributed as widely as possible; that is, two types of bundles should be placed as far apart as possible. This is equivalent to adding an air shield between the interference source and the affected circuit, reducing coupling along the conduction path.

[0066] Radiated interference refers to the transmission of interfering signals to another electrical device or network through spatial coupling. When calculating the radiated intensity of a cable, it can be considered equivalent to a monopole antenna. The following is the formula for calculating its radiated intensity:

[0067] E = 12.6 * 10 -7 fIL / r

[0068] Where E is the electric field strength (V / m), f is the current frequency (MHz), L is the cable length (m), I is the current intensity (mA), and r is the distance from the test point to the current loop.

[0069] As shown in the formula above, the longer the cable, the greater the radiation intensity. Therefore, changing the power distribution method from the left and right sides of the vehicle to the power distribution method in the middle of the vehicle body reduces the overall cable length, and the radiation intensity is correspondingly reduced, thus reducing radiation interference to electrical equipment such as the ECU. Furthermore, placing the first type of power distribution harness in the center of the vehicle increases the distance between the second type of power distribution harness and the first type, as well as the distance between the first type of power distribution harness and the ECU, and the distance from the test point to the current loop. According to the formula above, this results in even lower radiation intensity. Therefore, changing the scheme of placing the two types of harnesses together to the above power distribution method results in more dispersed power distribution, reducing conducted and radiated interference, and reducing electromagnetic radiation.

[0070] Based on the above embodiment one, the following embodiment describes the setting of the second type of power distribution line.

[0071] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of the vehicle power distribution system provided in this application, as shown below. Figure 2 As shown, the second type of power distribution lines are arranged on both sides of the vehicle (H-shaped) and extend along the front-to-back direction of the vehicle. In this embodiment, the arrangement of the second type of power distribution lines is the same as that in the prior art, only the arrangement of the first type of power distribution lines is changed.

[0072] In this method, the second type of power distribution line and the first type of power distribution line need to be grounded separately.

[0073] This arrangement maximizes the average distance between the Category II and Category I power distribution harnesses, further reducing electromagnetic interference. Simultaneously, separating the Category II and Category I power distribution harnesses reduces the likelihood of short circuits caused by insulation peeling due to moisture or prolonged use, thus lowering the overall probability of short circuit faults.

[0074] Figure 3 This is a schematic diagram of the structure of Embodiment 3 of the vehicle power distribution system provided in this application. Based on Embodiment 2, as follows: Figure 3 As shown, the power distribution module connects to the second type of power distribution line. The power distribution module also provides a second voltage to the second type of power distribution line; that is, the first voltage of the first type of power distribution line and the second voltage of the second type of power distribution line both originate from the power distribution module. This means that the voltage in the first type of power distribution line and the voltage in the second type of power distribution line are not directly related and are two separate power distribution systems.

[0075] In this embodiment, the first and second type of power distribution lines are independent of each other, which helps to simplify system design and troubleshooting. The voltage of each type of power supply can be adjusted independently as needed to adapt to different electrical requirements, reduce potential risks in the voltage conversion process, and lower the possibility of system problems.

[0076] Figure 4 This is a schematic diagram of the structure of Embodiment 4 of the vehicle power distribution system provided in this application. Based on Embodiment 2, as follows: Figure 4 As shown, the vehicle's power distribution system also includes a power conversion module, which is connected to both a first-type power distribution line and a second-type power distribution line. The power conversion module converts the first voltage to a second voltage. This means that the voltage in the second-type power distribution line is obtained by converting the voltage in the first-type power distribution line, forming a complete power distribution system.

[0077] In this embodiment, the voltage of the second type of power distribution line is converted from the voltage of the first type of power distribution line. The two are a power supply system. Voltage conversion is achieved through a power conversion module, which centrally manages voltage conversion and power distribution functions, making the system design more integrated.

[0078] Figure 5 This is a schematic diagram of the structure of Embodiment 5 of the vehicle power distribution system provided in this application. Based on Embodiment 1, as follows... Figure 5 As shown, the end of the first type of power distribution line is connected to a power conversion module, which is connected to the second type of power distribution line. The power conversion module is used to convert the first voltage to a second voltage and supply it to the second type of power distribution line. Either end of the first type of power distribution line can be configured in this way. Figure 5The diagram shows four terminals, all of which are converted to a second voltage and transmitted to a second voltage device via a second type of power distribution line.

[0079] Preferably, the second type of power distribution cable is routed along the front and rear of the vehicle to increase the distance from the first type of power distribution cable and reduce electromagnetic interference. Of course, if structural obstacles are encountered during the cable routing process, the routing direction can be adjusted according to the actual situation.

[0080] In this embodiment, the first type of power distribution cable no longer adopts the layout method at both ends of the vehicle, and the main routing of the first type of power distribution cable is directly eliminated, reducing electromagnetic interference between the two types of cable harnesses.

[0081] Based on any of the above embodiments, preferably, the distribution voltage of the first type of power distribution line is 48V, and the distribution voltage of the second type of power distribution line is 12V. With 48V compared to 12V, the driving voltage increases, and according to P=UI, the current required to drive an appliance of the same power is smaller (25% of 12V). According to Q=I... 2 R, heat loss is 6.25% of that of 12V. Therefore, a 48V power system saves more energy than a 12V power harness and can better support high-power loads. Considering only the needs of in-vehicle electrical appliances, there may be many options such as 24V and 36V, but voltages exceeding 60V can have serious effects on the human body upon electric shock. In other words, 60V is the highest safe voltage, and no additional voltage protection is required. The highest voltage of a 48V battery is 56V, very close to the upper limit of 60V, meaning that the 48V battery voltage is the highest voltage level within the safe voltage range.

[0082] Based on any of the above embodiments, in some embodiments, the distribution voltage of the first type of power distribution line is 48V, and the distribution voltage of the second type of power distribution line is 36V.

[0083] Based on any of the above embodiments, in some embodiments, the distribution voltage of the first type of power distribution line is 48V, and the distribution voltage of the second type of power distribution line is 24V.

[0084] Based on any of the above embodiments, in some embodiments, the distribution voltage of the first type of power distribution line is 36V, and the distribution voltage of the second type of power distribution line is 12V.

[0085] This application does not limit the specific distribution voltage of the two types of power distribution lines. As long as they are set separately, the purpose of reducing electromagnetic interference between the two types of power distribution lines can be achieved.

[0086] Based on any of the above embodiments, the first type of power distribution wire is a flat wire, which reduces the difficulty of wiring and improves the efficiency of automated assembly.

[0087] Based on any of the above embodiments, in some embodiments, some first-type voltage devices and some second-type voltage devices inside the vehicle may be connected by communication lines to facilitate communication between the devices. However, due to the different operating voltages, when the grounding of the first-type voltage device is disconnected, a voltage difference may exist between the two, potentially reaching 30V. In this case, if the internal isolation of the device is insufficient, current may directly flow through the low-voltage device to ground, damaging the low-voltage module components. The internal isolation design of the device needs to have sufficient withstand voltage to withstand voltage differences higher than the normal operating voltage. Therefore, the device design should ensure that it can withstand voltage differences exceeding 36V. Alternatively, a high-voltage blocking device can be installed on the line to automatically cut off current flow when a voltage difference exceeds a preset threshold, protecting the low-voltage device from damage.

[0088] In some embodiments, the first type of voltage device includes one or more of the following: Zone Control Unit (ZCU), Electronic Control Unit (ECU), starter generator, electric supercharger, air conditioning compressor, electric turbocharger, and LED or laser headlights. The second type of voltage device includes one or more of the following: interior lights, instrument panel lights, exterior headlights, brake lights, turn signals, power window regulators, power seat adjusters, heated seats, rear window heaters, audio systems, navigation systems, displays, and power windshield wipers.

[0089] Figure 6 The schematic diagram of the power distribution for the high-voltage and low-voltage systems provided in this application is as follows: Figure 6 As shown, the dashed lines represent high-voltage power supply, and the dashed rectangles represent high-voltage power supply devices, such as power batteries (3), drive motors (4), and wheels (5).

[0090] Solid lines represent low-voltage power supply, and solid rectangles represent devices that supply low voltage, such as batteries (6), power distribution modules (7), power control modules (8), lamps (9), air conditioning motors (10), etc. Among them, DC-DC (Direct Current converter) (11) can convert high voltage to low voltage. Low-voltage systems are further divided into 12V power supply systems and 48V power supply systems.

[0091] The DC-DC converter converts high voltage to 48V and inputs it into the power distribution module, where it is transmitted via Class I power distribution lines. If the battery is a 48V battery, the DC-DC converter also converts the high voltage to 48V and inputs it into the battery. If the battery is a 12V battery, the DC-DC converter converts the high voltage to 12V and inputs it into the battery. If the battery includes both 12V and 48V batteries, the DC-DC converter inputs the converted voltages into the corresponding batteries.

[0092] This application also provides a vehicle that includes the vehicle power distribution system described in any of the above embodiments.

[0093] Finally, it should be noted that other embodiments of this application will readily conceive of by those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A vehicle power distribution system, characterized in that, The vehicle power distribution system includes: a first type of power distribution line, a first type of voltage device, a power distribution module, a second type of power distribution line, and a second type of voltage device. The first type of power distribution line is arranged on the axis of symmetry in the left-right direction of the vehicle and extends in the front-rear direction of the vehicle; at least one end of the first type of power distribution line extending in the front-rear direction of the vehicle extends in the left-right direction of the vehicle. The first type of power distribution cable is connected to the first type of voltage device; The power distribution module is connected to the first type of power distribution line, and the power distribution module is used to provide a first voltage to the first type of power distribution line; The distribution voltage of the first type of power distribution line is different from that of the second type of power distribution line; The second type of power distribution line is connected to the second type of voltage device, and the second type of power distribution line is not arranged on the axis of symmetry in the left and right directions of the vehicle.

2. The vehicle power distribution system according to claim 1, characterized in that, The second type of power distribution cable is located on the left and right sides of the vehicle and extends along the front and rear direction of the vehicle.

3. The vehicle power distribution system according to claim 2, characterized in that, The power distribution module is connected to the second type of power distribution line, and the power distribution module is also used to provide a second voltage to the second type of power distribution line.

4. The vehicle power distribution system according to claim 2, characterized in that, The vehicle configuration system also includes a power conversion module; The power conversion module is connected to the first type of power distribution line and the second type of power distribution line respectively, and the power conversion module is used to convert the first voltage into the second voltage.

5. The vehicle power distribution system according to claim 1, characterized in that, The vehicle configuration system also includes a power conversion module; The end of the first type of power distribution line is connected to the power conversion module, which is used to convert the first voltage into a second voltage; The power conversion module is connected to the second type of power distribution cable.

6. The vehicle power distribution system according to claim 5, characterized in that, The second type of power distribution cable extends along the front-to-back direction of the vehicle.

7. The vehicle power distribution system according to any one of claims 1 to 6, characterized in that, The distribution voltage of the first type of power distribution line is greater than that of the second type of power distribution line.

8. The vehicle power distribution system according to any one of claims 1 to 6, characterized in that, The first type of power distribution line has a distribution voltage of 48V, and the second type of power distribution line has a distribution voltage of 12V.

9. The vehicle power distribution system according to any one of claims 1 to 6, characterized in that, Both the first type of power distribution wire and the second type of power distribution wire use flat wires.

10. A vehicle, characterized in that, The vehicle includes the vehicle power distribution system as described in any one of claims 1-9.

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