High-voltage wiring harness, high-voltage power supply system and vehicle

Abstract

The application provides a high-voltage wire harness, a high-voltage power supply system and a vehicle. The high-voltage wire harness is applied to a power supply circuit between a power battery and a high-voltage component of the vehicle, and the high-voltage wire harness comprises a power supply cable. The power supply cable is connected between the power battery and the high-voltage component of the vehicle. An overcurrent protection component is arranged in the power supply cable. The overcurrent protection component is used for being disconnected when the current of the power supply cable is greater than a current threshold value, and cutting off the power supply circuit between the power battery and the high-voltage component of the vehicle. The application can reduce the disassembly and maintenance of the power battery of the vehicle.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a high-voltage wiring harness, a high-voltage power supply system, and a vehicle. Background Technology

[0002] Currently, the fuses of power batteries are integrated inside the power battery. In the event of overcurrent or other problems, they are passively melted, cutting off the high-voltage circuit and protecting the vehicle's power battery and the entire vehicle.

[0003] When an overcurrent problem occurs due to an external short circuit, the battery fuse often burns out because the protection time of external high-voltage components is long and the response is slow, such as in cases of shoot-through in drive motor control. In this situation, not only must the external high-voltage components be replaced, but the battery fuse must also be replaced. This process requires removing the battery from the vehicle, unpacking it, and replacing the fuse—a time-consuming and complex procedure.

[0004] Currently, there is a problem where the vehicle's power battery needs to be disassembled and maintained due to short-circuit damage to high-voltage components. Utility Model Content

[0005] This application provides a high-voltage wiring harness, a high-voltage power supply system, and a vehicle to reduce the need for disassembly and maintenance of the vehicle's power battery.

[0006] According to a first aspect of the embodiments of this application, a high-voltage wiring harness is provided, which is applied in the power supply circuit between the power battery and high-voltage components of a vehicle, the high-voltage wiring harness including power supply cables;

[0007] The power supply cable is connected between the vehicle's power battery and the high-voltage component;

[0008] The power supply cable is equipped with an overcurrent protection component.

[0009] The overcurrent protection component is used to disconnect and cut off the power supply circuit between the vehicle's power battery and the high-voltage component when the current in the power supply cable exceeds the current threshold.

[0010] Optionally, the power supply cable includes a first cable and a second cable;

[0011] The first cable connects the positive terminal of the vehicle's power battery to the first end of the high-voltage component, and the second cable connects the negative terminal of the vehicle's power battery to the second end of the high-voltage component.

[0012] The overcurrent protection component is installed inside the first cable.

[0013] Optionally, the overcurrent protection component includes a fuse.

[0014] Optionally, the two ends of the fuse and the power supply cable are connected by metal crimping or welding.

[0015] According to a second aspect of the embodiments of this application, a high-voltage power supply system is provided, including a vehicle's power battery and power supply cables;

[0016] The power supply cable connects the vehicle's power battery and high-voltage components;

[0017] The power supply cable is equipped with an overcurrent protection component.

[0018] The overcurrent protection component is used to disconnect and cut off the power supply circuit between the vehicle's power battery and the high-voltage component when the current in the power supply cable exceeds the current threshold.

[0019] Optionally, the power supply cable includes a first cable and a second cable;

[0020] The first cable connects the positive terminal of the vehicle's power battery to the first end of the high-voltage component, and the second cable connects the negative terminal of the vehicle's power battery to the second end of the high-voltage component.

[0021] The overcurrent protection component is installed inside the first cable.

[0022] Optionally, the high-voltage power supply system further includes a first high-voltage connector, a second high-voltage connector, a third high-voltage connector, and a fourth high-voltage connector;

[0023] The first high-voltage connector is connected between the positive terminal of the vehicle's power battery and the first end of the first cable; the second high-voltage connector is connected between the second end of the first cable and the first end of the high-voltage component; the third high-voltage connector is connected between the negative terminal of the vehicle's power battery and the first end of the second cable; and the fourth high-voltage connector is connected between the second end of the second cable and the second end of the high-voltage component.

[0024] Optionally, the overcurrent protection component includes a fuse.

[0025] Optionally, the two ends of the fuse and the power supply cable are connected by metal crimping or welding.

[0026] According to a third aspect of the embodiments of this application, a vehicle is provided, including a high-voltage power supply system as described in the second aspect.

[0027] In this application, the high-voltage wiring harness is used in the power supply circuit between the vehicle's power battery and high-voltage components. The high-voltage wiring harness includes a power supply cable that connects the vehicle's power battery and the high-voltage components. An overcurrent protection component is installed inside the power supply cable. This overcurrent protection component disconnects when the current in the power supply cable exceeds a current threshold, thus cutting off the power supply circuit between the vehicle's power battery and the high-voltage components. In this application, the overcurrent protection component is no longer located inside the vehicle's power battery, but rather inside the power supply cable. When an overcurrent problem occurs, the overcurrent protection component inside the power supply cable disconnects, cutting off the power supply circuit between the vehicle's power battery and the high-voltage components, protecting the vehicle's power battery from damage. The high-voltage wiring harness can then be directly replaced, reducing the need for disassembly and maintenance of the vehicle's power battery. This is convenient, quick, and cost-effective, reducing the time and cost associated with disassembling the entire vehicle's power battery and replacing the overcurrent protection component. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of a high-voltage wire harness provided in the embodiments of this application;

[0030] Figure 2 This is a schematic diagram of another high-voltage wire harness provided in the embodiments of this application;

[0031] Figure 3 This is a schematic diagram of the structure of a high-voltage power supply system provided in the embodiments of this application;

[0032] Figure 4 This is a schematic diagram of another high-voltage power supply system provided in the embodiments of this application.

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

[0034] 10-High voltage power supply system, 100-High voltage wiring harness, 110-Power supply cable, 111-First cable, 112-Second cable, 120-Overcurrent protection component, 200-Power battery, 300-High voltage component, 400-First high voltage connector, 500-Second high voltage connector, 600-Third high voltage connector, 700-Fourth high voltage connector. Detailed Implementation

[0035] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] Exemplary high-voltage wiring harness

[0037] Please see Figure 1 In one exemplary embodiment, a high-voltage wiring harness is provided. For example... Figure 1 As shown, the high-voltage wiring harness 100 is used in the power supply circuit between the vehicle's power battery 200 and the high-voltage component 300. The high-voltage wiring harness 100 includes a power supply cable 110.

[0038] The power supply cable 110 is connected between the vehicle's power battery 200 and the high-voltage component 300;

[0039] The power supply cable 110 is equipped with an overcurrent protection component 120.

[0040] The overcurrent protection component 120 is used to disconnect and cut off the power supply circuit between the vehicle's power battery 200 and the high-voltage component 300 when the current in the power supply cable 110 exceeds the current threshold.

[0041] In an exemplary embodiment, the vehicle's power battery 200 can refer to a battery pack. The power supply cable 110 is connected between the vehicle's power battery 200 and the high-voltage component 300. The power supply cable 110 is located outside the battery pack. An overcurrent protection component 120 is installed inside the power supply cable 110, which is also located outside the battery pack. When an overcurrent problem occurs, the overcurrent protection component inside the power supply cable 110 disconnects, cutting off the power supply circuit between the vehicle's power battery 200 and the high-voltage component 300. Since the power supply cable 110 and the overcurrent protection component 120 are located outside the battery pack, the battery pack can be protected from damage, effectively reducing the time and sample costs of disassembling the entire vehicle's battery pack and replacing the overcurrent protection component 120.

[0042] In the exemplary embodiment, the high-voltage component 300 refers to a component directly connected to the vehicle's power battery 200. For example, the voltage of the high-voltage component 300 is generally above 300 volts. The high-voltage component 300 may include, but is not limited to, a generator, a drive motor, etc.

[0043] In an exemplary embodiment, the overcurrent protection component 120 may include a fuse, or other types of overcurrent protection components, such as a relay, and this application is not limited thereto.

[0044] In this application, the overcurrent protection component is no longer located inside the vehicle's power battery, but rather inside the power supply cable. When an overcurrent problem occurs, the overcurrent protection component inside the power supply cable disconnects, cutting off the power supply circuit between the vehicle's power battery and the high-voltage component, thus protecting the vehicle's power battery from damage. The high-voltage wiring harness can then be replaced directly, reducing the need for disassembly and maintenance of the vehicle's power battery. This is convenient, quick, and cost-effective, reducing the time and cost associated with disassembling the entire vehicle's power battery and replacing the overcurrent protection component.

[0045] When a high-voltage component fails and an overcurrent problem occurs, the overcurrent protection device in the high-voltage wiring harness connected to the failed component disconnects. Only the high-voltage wiring harness connected to the failed component needs to be replaced. This does not affect the normal operation of the vehicle's power battery, and the loss of power supply to the entire power battery due to the damage of one high-voltage component will not occur. The vehicle's power battery can still supply power to other high-voltage components that are not faulty, ensuring the normal operation of other high-voltage components and reducing maintenance costs and time. This is especially advantageous in the after-sales service sector.

[0046] In some embodiments, such as Figure 2 As shown, the power supply cable 110 includes a first cable 111 and a second cable 112;

[0047] The first cable 111 is connected between the positive (+) terminal of the vehicle's power battery 200 and the first end of the high-voltage component 300, and the second cable 112 is connected between the negative (-) terminal of the vehicle's power battery 200 and the second end of the high-voltage component 300.

[0048] The first cable 111 is equipped with an overcurrent protection component 120.

[0049] If only the connection between the negative terminal (-) of the vehicle's power battery 200 and the high-voltage component 300 is disconnected, without disconnecting the connection between the positive terminal (+) of the vehicle's power battery 200 and the high-voltage component 300, the positive terminal (+) of the vehicle's power battery 200 and the high-voltage component 300 may form a circuit through other conductors, and the vehicle's power battery 200 may still be damaged. However, in this application, when an overcurrent problem occurs, the overcurrent protection component 120 inside the first cable 111 disconnects, breaking the connection between the positive terminal (+) of the vehicle's power battery 200 and the first end of the high-voltage component 300. This more directly and thoroughly interrupts the current between the vehicle's power battery 200 and the high-voltage component 300, completely isolating the high-voltage component 300 and the positive terminal (+) of the vehicle's power battery 200, protecting the vehicle's power battery 200 from damage.

[0050] In some embodiments, the overcurrent protection component 120 includes a fuse.

[0051] In an exemplary embodiment, the fuse may be a conventional fuse or a special alloy material.

[0052] When an overcurrent problem occurs, the fuse inside the power cable will passively melt within a specified time, cutting off the power supply circuit between the vehicle's power battery and high-voltage components, protecting the vehicle's power battery from damage. The high-voltage wiring harness can then be replaced directly, reducing the need for disassembly and maintenance of the vehicle's power battery. This is convenient, quick, and low-cost, reducing the time and cost of disassembling the entire vehicle's power battery and replacing the overcurrent protection components.

[0053] In some embodiments, the two ends of the fuse and the power supply cable 110 are connected by metal crimping or welding.

[0054] In an exemplary embodiment, the two ends of the fuse and the copper wires in the power supply cable 110 are connected by metal crimping or welding.

[0055] The two ends of the fuse are connected to the power supply cable 110 by metal crimping or welding to ensure a stable connection between the fuse and the power supply cable 110, and to allow current to flow between the fuse and the power supply cable 110. In the event of an overcurrent problem, the fuse inside the power supply cable will passively melt within a specified time, cutting off the power supply circuit between the vehicle's power battery and high-voltage components, thus protecting the vehicle's power battery from damage.

[0056] In some embodiments, the power supply cable 110 includes a first cable 111 and a second cable 112;

[0057] The first cable 111 is connected between the positive (+) terminal of the vehicle's power battery 200 and the first end of the high-voltage component 300, and the second cable 112 is connected between the negative (-) terminal of the vehicle's power battery 200 and the second end of the high-voltage component 300.

[0058] The first cable 111 has a fuse inside; the two ends of the fuse are connected to the first cable 111 by metal crimping or welding.

[0059] In an exemplary embodiment, the two ends of the fuse and the copper wires in the first cable 111 are connected by metal crimping or welding.

[0060] The two ends of the fuse and the first cable 111 are connected by metal crimping or welding to ensure a stable connection between the fuse and the first cable 111, and current can flow between the fuse and the first cable 111. When an overcurrent problem occurs, the fuse inside the first cable 111 will passively melt within a specified time, disconnecting the positive (+) terminal of the vehicle's power battery 200 from the first end of the high-voltage component 300. This can more directly and completely interrupt the current between the vehicle's power battery 200 and the high-voltage component 300, completely isolating the high-voltage component 300 from the positive (+) terminal of the vehicle's power battery 200, protecting the vehicle's power battery 200 from damage.

[0061] Exemplary high-voltage power supply system

[0062] Accordingly, embodiments of this application also provide a high-voltage power supply system, such as... Figure 3 As shown, the high-voltage power supply system 10 includes the vehicle's power battery 200 and power supply cable 110;

[0063] The power supply cable 110 is connected between the vehicle's power battery 200 and the high-voltage component 300;

[0064] The power supply cable 110 is equipped with an overcurrent protection component 120.

[0065] The overcurrent protection component 120 is used to disconnect and cut off the power supply circuit between the vehicle's power battery 200 and the high-voltage component 300 when the current in the power supply cable 110 exceeds the current threshold.

[0066] In an exemplary embodiment, the vehicle's power battery 200 can refer to a battery pack. The power supply cable 110 is connected between the vehicle's power battery 200 and the high-voltage component 300. The power supply cable 110 is located outside the battery pack. An overcurrent protection component 120 is installed inside the power supply cable 110, which is also located outside the battery pack. When an overcurrent problem occurs, the overcurrent protection component inside the power supply cable 110 disconnects, cutting off the power supply circuit between the vehicle's power battery 200 and the high-voltage component 300. Since the power supply cable 110 and the overcurrent protection component 120 are located outside the battery pack, the battery pack can be protected from damage, effectively reducing the time and sample costs of disassembling the entire vehicle's battery pack and replacing the overcurrent protection component 120.

[0067] In the exemplary embodiment, the high-voltage component 300 refers to a component directly connected to the vehicle's power battery 200. For example, the voltage of the high-voltage component 300 is generally above 300 volts. The high-voltage component 300 may include, but is not limited to, a generator, a drive motor, etc.

[0068] In an exemplary embodiment, the overcurrent protection component 120 may include a fuse, or other types of overcurrent protection components, such as a relay, and this application is not limited thereto.

[0069] In this application, the overcurrent protection component is no longer located inside the vehicle's power battery, but rather inside the power supply cable. When an overcurrent problem occurs, the overcurrent protection component inside the power supply cable disconnects, cutting off the power supply circuit between the vehicle's power battery and the high-voltage component, thus protecting the vehicle's power battery from damage. The high-voltage wiring harness can then be replaced directly, reducing the need for disassembly and maintenance of the vehicle's power battery. This is convenient, quick, and cost-effective, reducing the time and cost associated with disassembling the entire vehicle's power battery and replacing the overcurrent protection component.

[0070] When a high-voltage component fails and an overcurrent problem occurs, the overcurrent protection device in the high-voltage wiring harness connected to the failed component disconnects. Only the high-voltage wiring harness connected to the failed component needs to be replaced. This does not affect the normal operation of the vehicle's power battery, and the loss of power supply to the entire power battery due to the damage of one high-voltage component will not occur. The vehicle's power battery can still supply power to other high-voltage components that are not faulty, ensuring the normal operation of other high-voltage components and reducing maintenance costs and time. This is especially advantageous in the after-sales service sector.

[0071] In some embodiments, such as Figure 2 As shown, the power supply cable 110 includes a first cable 111 and a second cable 112;

[0072] The first cable 111 is connected between the positive (+) terminal of the vehicle's power battery 200 and the first end of the high-voltage component 300, and the second cable 112 is connected between the negative (-) terminal of the vehicle's power battery 200 and the second end of the high-voltage component 300.

[0073] The first cable 111 is equipped with an overcurrent protection component 120.

[0074] If only the connection between the negative terminal (-) of the vehicle's power battery 200 and the high-voltage component 300 is disconnected, without disconnecting the connection between the positive terminal (+) of the vehicle's power battery 200 and the high-voltage component 300, the positive terminal (+) of the vehicle's power battery 200 and the high-voltage component 300 may form a circuit through other conductors, and the vehicle's power battery 200 may still be damaged. However, in this application, when an overcurrent problem occurs, the overcurrent protection component 120 inside the first cable 111 disconnects, breaking the connection between the positive terminal (+) of the vehicle's power battery 200 and the first end of the high-voltage component 300. This more directly and thoroughly interrupts the current between the vehicle's power battery 200 and the high-voltage component 300, completely isolating the high-voltage component 300 and the positive terminal (+) of the vehicle's power battery 200, protecting the vehicle's power battery 200 from damage.

[0075] In some embodiments, such as Figure 4 As shown, the high-voltage power supply system 10 also includes a first high-voltage connector 400, a second high-voltage connector 500, a third high-voltage connector 600, and a fourth high-voltage connector 700.

[0076] The first high-voltage connector 400 is connected between the positive (+) terminal of the vehicle's power battery 200 and the first end of the first cable 111. The second high-voltage connector 500 is connected between the second end of the first cable 111 and the first end of the high-voltage component 300. The third high-voltage connector 600 is connected between the negative (-) terminal of the vehicle's power battery 200 and the first end of the second cable 112. The fourth high-voltage connector 700 is connected between the second end of the second cable 112 and the second end of the high-voltage component 300.

[0077] In the exemplary embodiment, the first high-voltage connector 400, the second high-voltage connector 500, the third high-voltage connector 600, and the fourth high-voltage connector 700 can be high-voltage connectors. They connect the positive (+) terminal of the vehicle's power battery 200 to the first end of the first cable 111, the second end of the first cable 111 to the first end of the high-voltage component 300, the negative (-) terminal of the vehicle's power battery 200 to the first end of the second cable 112, and the second end of the second cable 112 to the second end of the high-voltage component 300 via a plug-in connection. This plug-in connection facilitates the installation and removal of the first cable 111 and the second cable 112, providing convenience and speed. Of course, the first high-voltage connector 400, the second high-voltage connector 500, the third high-voltage connector 600, and the fourth high-voltage connector 700 can also be other types of connectors, and this application does not limit this.

[0078] In some embodiments, the overcurrent protection component 120 includes a fuse.

[0079] In an exemplary embodiment, the fuse may be a conventional fuse or a special alloy material.

[0080] When an overcurrent problem occurs, the fuse inside the power cable will passively melt within a specified time, cutting off the power supply circuit between the vehicle's power battery and high-voltage components, protecting the vehicle's power battery from damage. The high-voltage wiring harness can then be replaced directly, reducing the need for disassembly and maintenance of the vehicle's power battery. This is convenient, quick, and low-cost, reducing the time and cost of disassembling the entire vehicle's power battery and replacing the overcurrent protection components.

[0081] In some embodiments, the two ends of the fuse and the power supply cable 110 are connected by metal crimping or welding.

[0082] In an exemplary embodiment, the two ends of the fuse and the copper wires in the power supply cable 110 are connected by metal crimping or welding.

[0083] The two ends of the fuse are connected to the power supply cable 110 by metal crimping or welding to ensure a stable connection between the fuse and the power supply cable 110, and to allow current to flow between the fuse and the power supply cable 110. In the event of an overcurrent problem, the fuse inside the power supply cable will passively melt within a specified time, cutting off the power supply circuit between the vehicle's power battery and high-voltage components, thus protecting the vehicle's power battery from damage.

[0084] In some embodiments, the power supply cable 110 includes a first cable 111 and a second cable 112;

[0085] The first cable 111 is connected between the positive (+) terminal of the vehicle's power battery 200 and the first end of the high-voltage component 300, and the second cable 112 is connected between the negative (-) terminal of the vehicle's power battery 200 and the second end of the high-voltage component 300.

[0086] The first cable 111 has a fuse inside; the two ends of the fuse are connected to the first cable 111 by metal crimping or welding.

[0087] In an exemplary embodiment, the two ends of the fuse and the copper wires in the first cable 111 are connected by metal crimping or welding.

[0088] The two ends of the fuse and the first cable 111 are connected by metal crimping or welding to ensure a stable connection between the fuse and the first cable 111, and current can flow between the fuse and the first cable 111. When an overcurrent problem occurs, the fuse inside the first cable 111 will passively melt within a specified time, disconnecting the positive (+) terminal of the vehicle's power battery 200 from the first end of the high-voltage component 300. This can more directly and completely interrupt the current between the vehicle's power battery 200 and the high-voltage component 300, completely isolating the high-voltage component 300 from the positive (+) terminal of the vehicle's power battery 200, protecting the vehicle's power battery 200 from damage.

[0089] Exemplary vehicle

[0090] Accordingly, this application also provides a vehicle including the high-voltage power supply system provided in any of the above embodiments of this application.

[0091] In some embodiments, the vehicle includes a vehicle power battery 200, a plurality of power supply cables 110 and a plurality of high-voltage components 300;

[0092] Each power supply cable 110 is connected between the vehicle's power battery 200 and each high-voltage component 300;

[0093] Each power supply cable 110 is equipped with an overcurrent protection component 120 inside;

[0094] The overcurrent protection component 120 is used to disconnect and cut off the power supply circuit between the vehicle's power battery 200 and the high-voltage component 300 corresponding to the power supply cable 110 when the current in the power supply cable 110 exceeds the current threshold.

[0095] When a high-voltage component fails and an overcurrent problem occurs, the overcurrent protection device in the power supply cable connected to the faulty high-voltage component disconnects. Only the power supply cable connected to the faulty high-voltage component and the overcurrent protection device inside the power supply cable need to be replaced. This does not affect the normal use of the vehicle's power battery, and the loss of power supply to the entire power battery due to the damage of one high-voltage component will not affect the normal use of other high-voltage components. This ensures the normal operation of other functions of the vehicle, reduces maintenance costs and time, and has a very obvious replacement advantage, especially in the after-sales service.

[0096] For technical details not described in detail in this embodiment, please refer to the specific content of the high-voltage power supply system provided in the above embodiments of this application, which will not be repeated here.

[0097] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0098] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0099] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0100] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-voltage wiring harness, characterized in that, The high-voltage harness, which is used in the power supply circuit between the vehicle's power battery and high-voltage components, includes power supply cables. The power supply cable is connected between the vehicle's power battery and the high-voltage component; The power supply cable is equipped with an overcurrent protection component. The overcurrent protection component is used to disconnect and cut off the power supply circuit between the vehicle's power battery and the high-voltage component when the current in the power supply cable exceeds the current threshold.

2. The high-voltage wiring harness according to claim 1, characterized in that, The power supply cable includes a first cable and a second cable; The first cable connects the positive terminal of the vehicle's power battery to the first end of the high-voltage component, and the second cable connects the negative terminal of the vehicle's power battery to the second end of the high-voltage component. The overcurrent protection component is installed inside the first cable.

3. The high-voltage wiring harness according to claim 1, characterized in that, The overcurrent protection component includes a fuse.

4. The high-voltage wiring harness according to claim 3, characterized in that, The two ends of the fuse are connected to the power supply cable by metal crimping or welding.

5. A high-voltage power supply system, characterized in that, This includes the vehicle's power battery and power cables; The power supply cable connects the vehicle's power battery and high-voltage components; The power supply cable is equipped with an overcurrent protection component. The overcurrent protection component is used to disconnect and cut off the power supply circuit between the vehicle's power battery and the high-voltage component when the current in the power supply cable exceeds the current threshold.

6. The high-voltage power supply system according to claim 5, characterized in that, The power supply cable includes a first cable and a second cable; The first cable connects the positive terminal of the vehicle's power battery to the first end of the high-voltage component, and the second cable connects the negative terminal of the vehicle's power battery to the second end of the high-voltage component. The overcurrent protection component is installed inside the first cable.

7. The high-voltage power supply system according to claim 6, characterized in that, The high-voltage power supply system also includes a first high-voltage connector, a second high-voltage connector, a third high-voltage connector, and a fourth high-voltage connector; The first high-voltage connector is connected between the positive terminal of the vehicle's power battery and the first end of the first cable; the second high-voltage connector is connected between the second end of the first cable and the first end of the high-voltage component; the third high-voltage connector is connected between the negative terminal of the vehicle's power battery and the first end of the second cable; and the fourth high-voltage connector is connected between the second end of the second cable and the second end of the high-voltage component.

8. The high-voltage power supply system according to claim 5, characterized in that, The overcurrent protection component includes a fuse.

9. The high-voltage power supply system according to claim 8, characterized in that, The two ends of the fuse are connected to the power supply cable by metal crimping or welding.

10. A vehicle, characterized in that, This includes the high-voltage power supply system as described in any one of claims 5 to 9.

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