Wireless charging system of electric automobile

Abstract

The utility model provides a wireless charging system of an electric vehicle. The wireless charging system comprises a wireless charging receiving module arranged on the electric vehicle, a vehicle-mounted low-voltage DC-DC converter and a grounding wire connected with the wireless charging receiving module. When the grounding wire is connected with a grounding point on the ground, the wireless charging receiving module starts to receive high-voltage alternating current which is transmitted by a power grid and received by the wireless charging transmitting module, converts the high-voltage alternating current into high-voltage direct current and transmits the high-voltage direct current to the vehicle-mounted low-voltage DC-DC converter; the vehicle-mounted low-voltage DC-DC converter converts the high-voltage direct current into low-voltage direct current and transmits the low-voltage direct current to a storage battery arranged on the electric vehicle. Therefore, the wireless charging of the storage battery of the electric vehicle is realized, the use experience of the electric vehicle is improved, and the reliability and the safety of the charging of the storage battery are also improved.

Description

Technical Field

[0001] This application relates to the technical field of electric vehicle charging, and more particularly, to a wireless charging system for electric vehicles. Background Art

[0002] With the rapid development of new energy vehicles, especially the rise of pure electric vehicles, people's demand for the charging convenience of electric vehicles is becoming increasingly strong.

[0003] When an electric vehicle is parked for a long time, the storage battery in the electric vehicle will be over-discharged, resulting in the inability of the electric vehicle to start normally, which seriously affects the user's driving experience. At present, to replenish the electrical energy of the storage battery, a wired charging method is often used. Wired charging requires the user to manually connect the charging cable on the charging pile to the charging interface of the vehicle. After frequent plugging and unplugging operations, problems such as line aging or poor contact may occur, greatly reducing the reliability and safety of power supply. Therefore, how to improve the safety of storage battery charging has become a technical problem that cannot be underestimated. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a wireless charging system for electric vehicles, which realizes wireless charging of the storage battery of the electric vehicle, improves the driving experience of the electric vehicle, and also improves the reliability and safety of storage battery charging.

[0005] An embodiment of this application provides a wireless charging system for electric vehicles. The wireless charging system includes a wireless charging receiving module, a vehicle-mounted low-voltage DC-DC converter, and a grounding wire connected to the wireless charging receiving module, which are arranged on the electric vehicle. The wireless charging receiving module is electrically connected to the vehicle-mounted low-voltage DC-DC converter;

[0006] When the grounding wire is connected to the grounding point on the ground, the wireless charging receiving module starts to receive the high-voltage alternating current transmitted by the power grid received by the wireless charging transmitting module. The wireless charging receiving module converts the high-voltage alternating current into high-voltage direct current and transmits it to the vehicle-mounted low-voltage DC-DC converter. The vehicle-mounted low-voltage DC-DC converter converts the high-voltage direct current into low-voltage direct current and transmits it to the storage battery arranged on the electric vehicle.

[0007] Further, the wireless charging receiving module is connected to the vehicle-mounted information processing device, and the wireless charging receiving module sends a storage battery over-discharge prompt message to the vehicle-mounted information processing device.

[0008] Further, the wireless charging receiving module includes a wireless charging vehicle-end coil and a wireless charging vehicle-end module;

[0009] The vehicle-side coil of the wireless charger receives the high-voltage alternating current transmitted by the wireless charging transmitting module, and the vehicle-side module of the wireless charger converts the received high-voltage alternating current into high-voltage direct current.

[0010] Further, the wireless charging transmitting module includes a wireless charging ground-side module and a wireless charging ground-side coil;

[0011] The wireless charging ground-side module obtains the high-voltage alternating current provided by the power grid and transmits the received high-voltage alternating current to the wireless charging ground-side coil.

[0012] Further, the storage battery transmits electric energy to a plurality of low-voltage load modules provided on the electric vehicle.

[0013] Further, the wireless charging system further includes an on-vehicle charger provided on the electric vehicle. The on-vehicle charger is connected to the wireless charging receiving module, and the on-vehicle charger transmits the electric energy sent by the wireless charging receiving module to the power battery of the electric vehicle.

[0014] Further, the storage battery and the power battery are respectively connected to an on-vehicle heater provided on the electric vehicle. The storage battery transmits low-voltage electricity to the on-vehicle heater, and the power battery transmits high-voltage electricity to the on-vehicle heater to make the on-vehicle heater work.

[0015] Further, the power battery is connected to an electric drive assembly provided on the electric vehicle. The power battery supplies power to the electric drive assembly to make the electric drive assembly convert electric energy into mechanical energy and drive the electric vehicle to travel.

[0016] Further, the storage battery transmits electric energy to a plurality of low-voltage load interfaces provided on the electric vehicle.

[0017] Further, the on-vehicle charger transmits the electric energy sent by the wireless charging receiving module to the power battery through a high-voltage wire harness.

[0018] A wireless charging system for an electric vehicle provided by an embodiment of the present application. The wireless charging system includes a wireless charging receiving module disposed on the electric vehicle, an in-vehicle low-voltage DC-DC converter, and a grounding wire connected to the wireless charging receiving module. The wireless charging receiving module is electrically connected to the in-vehicle low-voltage DC-DC converter. When the grounding wire is connected to a grounding point on the ground, the wireless charging receiving module starts to receive high-voltage alternating current transmitted by the power grid received by the wireless charging transmitting module. The wireless charging receiving module converts the high-voltage alternating current into high-voltage direct current and transmits it to the in-vehicle low-voltage DC-DC converter. The in-vehicle low-voltage DC-DC converter converts the high-voltage direct current into low-voltage direct current and transmits it to a storage battery disposed on the electric vehicle.

[0019] According to the wireless charging system for an electric vehicle provided by the present application, wireless charging is combined with battery charging. The high-voltage alternating current is received through the wireless charging receiving module, and the high-voltage direct current is converted into low-voltage direct current by the in-vehicle low-voltage DC-DC converter to supply power to the storage battery, thereby realizing wireless charging of the storage battery of the electric vehicle, improving the vehicle use experience of the electric vehicle, and also improving the reliability and safety of battery charging.

[0020] In order to make the above objects, features, and advantages of the present application more obvious and understandable, the following specifically gives preferred embodiments and, in conjunction with the accompanying drawings, makes the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present application and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 One of the structural schematic diagrams of a wireless charging system for an electric vehicle provided by an embodiment of the present application;

[0023] Figure 2 Another structural schematic diagram of a wireless charging system for an electric vehicle provided by an embodiment of the present application;

[0024] Figure 3 Another structural schematic diagram of a wireless charging system for an electric vehicle provided by an embodiment of the present application.

[0025] In combination with the accompanying drawings, the reference numerals in the embodiments of the present application are as follows:

[0026] 1 - Wireless charging system; 10 - Wireless charging receiving module; 11 - Vehicle - side coil for wireless charging; 12 - Vehicle - side module for wireless charging; 20 - On - vehicle low - voltage DC - DC converter; 30 - Ground wire; 40 - Wireless charging transmitting module; 50 - Battery; 60 - Vehicle - mounted information processing device; 70 - On - vehicle charger; 80 - Power battery; 90 - On - vehicle heater; 100 - Electric drive assembly. Detailed implementation manners

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are only a part rather than all of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application claimed, but merely represents selected embodiments of the present application. Based on the embodiments of the present application, every other embodiment obtained by those skilled in the art without creative efforts belongs to the scope of protection of the present application.

[0028] First, the applicable application scenarios of the present application will be introduced. The present application can be applied to electric vehicles as a wireless charging system for electric vehicles.

[0029] With the rapid development of new - energy vehicles, especially the rise of pure electric vehicles, people's demand for the charging convenience of electric vehicles is becoming increasingly strong.

[0030] When an electric vehicle has been parked for a long time, the battery in the electric vehicle will be over - discharged, resulting in the electric vehicle being unable to start normally, which seriously affects the user's driving experience. Currently, to replenish the electrical energy of the battery, a wired charging method is often used. Wired charging requires the user to manually connect the charging cable on the charging pile to the charging interface of the vehicle. After frequent plugging and unplugging operations, problems such as wire aging or poor contact may occur, greatly reducing the reliability and safety of power supply. Therefore, how to improve the safety of battery charging has become a technical problem that cannot be underestimated.

[0031] Based on this, the embodiments of the present application provide a wireless charging system for electric vehicles, which combines wireless charging with battery charging. The wireless charging receiving module receives high - voltage alternating current, and the on - vehicle low - voltage DC - DC converter converts the high - voltage direct current into low - voltage direct current to supply power to the battery, thereby realizing wireless charging of the battery of the electric vehicle, improving the driving experience of the electric vehicle, and also enhancing the reliability and safety of battery charging.

[0032] Please refer to Figure 1 ,Figure 1 One of the structural schematic diagrams of a wireless charging system for an electric vehicle provided by an embodiment of the present application. As Figure 1 shown, the wireless charging system 1 provided by the embodiment of the present application includes a wireless charging receiving module 10 arranged on the electric vehicle, an in-vehicle low-voltage DC-DC converter 20, and a grounding wire 30 connected to the wireless charging receiving module 10. The wireless charging receiving module 10 is electrically connected to the in-vehicle low-voltage DC-DC converter 20.

[0033] Here, the wireless charging receiving module 10 refers to a device on the electric vehicle that receives electrical energy wirelessly to charge the electrical devices in the electric vehicle. The in-vehicle low-voltage DC-DC converter 20 is mainly responsible for converting the high-voltage direct current received by the vehicle into a lower-voltage direct current for use by the low-voltage electrical system of the vehicle. A grounding wire 30 is also installed on the wireless charging receiving module 10.

[0034] When the grounding wire 30 of the wireless charging receiving module 10 is connected to the ground connection point on the ground, the wireless charging receiving module 10 starts to receive the high-voltage alternating current transmitted by the power grid received by the wireless charging transmitting module 40. The wireless charging receiving module 10 converts the high-voltage alternating current into high-voltage direct current and transmits it to the in-vehicle low-voltage DC-DC converter 20. The in-vehicle low-voltage DC-DC converter 20 converts the high-voltage direct current into low-voltage direct current and transmits it to the battery 50 arranged on the electric vehicle.

[0035] Here, the wireless charging transmitting module 40 is connected to the power grid through a high-voltage wire harness.

[0036] Here, the wireless charging transmitting module 40 is arranged at the charging parking space and is used to wirelessly charge the electric vehicle. It is responsible for converting electrical energy into an electromagnetic field so that the wireless charging receiving module 10 can receive and convert it into electrical energy available for the device.

[0037] Specifically, when the electric vehicle stops at the charging position and it is found that the battery of the electric vehicle has insufficient power, the wireless charging receiving module 10 is forcibly awakened through the manual grounding point, that is, the user actively connects the grounding wire 30 connected to the wireless charging receiving module 10 to the grounding point on the ground, which is equivalent to actively connecting to the vehicle body to form a wake-up circuit. When the grounding wire 30 is connected to the grounding point on the ground, the wireless charging transmitting module 40 receives the 220V high-voltage alternating current transmitted by the power grid and delivers the 220V high-voltage alternating current to the wireless charging receiving module 10. The wireless charging receiving module 10 converts the 220V high-voltage alternating current into high-voltage direct current available for the vehicle battery and transmits the high-voltage direct current to the in-vehicle low-voltage DC-DC converter 20. At the same time, the in-vehicle low-voltage DC-DC converter 20 starts to work, converting the high-voltage direct current into low-voltage direct current, that is, 12V direct current, and transmitting it to the battery 50 provided on the electric vehicle to provide a 12V charging power supply for the battery 50, realizing emergency charging of the battery 50.

[0038] Please refer to Figure 2 , Figure 2 FIG. 2 is a second schematic structural diagram of a wireless charging system for an electric vehicle provided by an embodiment of the present application. As Figure 2 shown in FIG. 2, the wireless charging receiving module 10 includes a wireless charging vehicle-side coil 11 and a wireless charging vehicle-side module 12.

[0039] Here, the wireless charging vehicle-side coil 11 is electrically connected to the wireless charging vehicle-side module 12. The wireless charging vehicle-side coil 11 is the core part of the wireless charging receiving module 10 and is responsible for receiving the electromagnetic field energy from the wireless charging transmitting module 40. The wireless charging vehicle-side module 12 is responsible for converting the received alternating current energy into direct current so that the device can be used.

[0040] Specifically, when the electric vehicle stops at the charging position, the wireless charging vehicle-side coil 11 receives the high-voltage alternating current transmitted by the wireless charging transmitting module 40, and the wireless charging vehicle-side module 12 converts the received high-voltage alternating current into high-voltage direct current.

[0041] Furthermore, the wireless charging transmitting module 40 includes a wireless charging ground-side module and a wireless charging ground-side coil. The wireless charging ground-side module is used to obtain the high-voltage alternating current provided by the power grid. The wireless charging ground-side module transmits the received high-voltage alternating current to the wireless charging ground-side coil. The wireless charging ground-side coil is responsible for generating an electromagnetic field. When current passes through the transmitting coil, a changing magnetic field will be generated, and this magnetic field can be induced by the wireless charging vehicle-side coil 11 and converted into electrical energy.

[0042] Please refer to Figure 3 , Figure 3 FIG. 3 is a third schematic structural diagram of a wireless charging system for an electric vehicle provided by an embodiment of the present application. AsFigure 3 As shown in the figure, the wireless charging receiving module 10 is connected to the vehicle information processing device 60, and the wireless charging receiving module 10 sends a battery over-discharge prompt message to the vehicle information processing device 60.

[0043] Here, the vehicle information processing device 60 is equivalent to the vehicle Tbox module. T-Box (Telematics Box) is an intelligent device integrated in the vehicle. It combines GPS technology, wireless communication technology, vehicle diagnostic systems, and Internet services to provide various information and entertainment services for the driver. The wireless charging receiving module 10 has an inspection function during dormancy. When the wireless charging receiving module 10 detects that the battery 50 is power-starved, it can actively record and send a battery over-discharge prompt message to the vehicle information processing device 60 to notify the vehicle owner through the vehicle information processing device 60.

[0044] Furthermore, the battery 50 transmits electrical energy to a plurality of low-voltage load modules provided on the electric vehicle.

[0045] Here, the low-voltage load module refers to an electronic device on the electric vehicle that needs to rely on low-voltage electricity to operate. For example, the low-voltage load module can be a vehicle lamp, an in-vehicle lighting system, a sensor, and an in-vehicle central control system, etc. The present application does not make specific limitations in this regard. Specifically, the battery 50 is connected to a plurality of low-voltage load modules in the electric vehicle through a low-voltage power supply line. When the battery 50 has sufficient power, it can provide 12V voltage to the plurality of low-voltage load modules through the low-voltage power supply line to drive the plurality of low-voltage load modules to operate normally.

[0046] Furthermore, the battery 50 transmits electrical energy to a plurality of low-voltage load interfaces provided on the electric vehicle.

[0047] Here, the low-voltage load interface refers to an interface on the electric vehicle for connecting low-voltage electrical equipment. These low-voltage load interfaces can provide power for various external devices. For example, the low-voltage load interface can be a USB interface, a 12V power socket, and a wireless charging board, etc. The present application does not make specific limitations in this regard. Specifically, the battery 50 is connected to a plurality of low-voltage load interfaces in the electric vehicle through a low-voltage power supply line. When the battery 50 has sufficient power, it can provide 12V voltage to the plurality of low-voltage load interfaces through the low-voltage power supply line, and the low-voltage load interface can provide electrical energy to the electrical equipment connected thereto.

[0048] As Figure 3 shown in the figure, the wireless charging system 1 further includes a vehicle-mounted charger 70 provided on the electric vehicle, and the vehicle-mounted charger 70 is connected to the wireless charging receiving module 10.

[0049] The in-vehicle charger 70 refers to the OBC (On-Board Charger) component in an electric vehicle. Its main function is to convert alternating current (AC) from an external power source into direct current (DC) suitable for charging the vehicle's high-voltage battery.

[0050] After the wireless charging receiving module 10 receives the high-voltage alternating current transmitted by the wireless charging transmitting module 40, the in-vehicle charger 70 converts the electrical energy sent by the wireless charging receiving module 10 into high-voltage direct current and transmits it to the power battery 80 of the electric vehicle to charge the power battery 80.

[0051] Furthermore, the in-vehicle charger 70 transmits the electrical energy sent by the wireless charging receiving module 10 to the power battery 80 through a high-voltage harness.

[0052] As Figure 3 shown, the storage battery 50 and the power battery 80 are respectively connected to the in-vehicle heater 90 on the electric vehicle. The storage battery 50 transmits low-voltage electricity to the in-vehicle heater 90, and the power battery 80 transmits high-voltage electricity to the in-vehicle heater 90 to make the in-vehicle heater work.

[0053] Here, the storage battery 50 transmits low-voltage electricity to the in-vehicle heater 90 through a low-voltage power supply line, and the power battery 80 transmits high-voltage electricity to the in-vehicle heater 90 through a high-voltage power supply line. In this way, after the in-vehicle heater 90 receives the low-voltage electricity and high-voltage electricity, it can work normally to cool or heat the whole vehicle.

[0054] As Figure 3 shown, the power battery 80 is connected to the electric drive assembly 100 on the electric vehicle. Specifically, the power battery 80 is connected to the electric drive assembly 100 through a high-voltage harness.

[0055] Here, the power battery 80 is the energy source of the electric vehicle, and it directly supplies power to the electric drive assembly 100 of the vehicle. The electric drive assembly 100 is one of the core components of the electric vehicle. It integrates a motor, a transmission, and related control electronics, and is responsible for converting electrical energy into mechanical energy to drive the vehicle forward.

[0056] Specifically, the power battery 80 supplies power to the electric drive assembly 100 through a high-voltage harness, so that the electric drive assembly 100 converts electrical energy into mechanical energy to drive the electric vehicle to travel. When the driver starts the electric vehicle and steps on the accelerator, the power battery 80 starts to discharge. During the discharge process, the direct current (DC) provided by the power battery 80 is converted into alternating current (AC) through an inverter, and the converted alternating current is sent into the electric drive assembly 100. The electric drive assembly 100 converts electrical energy into mechanical energy and drives the wheels to rotate through the transmission system, thereby pushing the vehicle forward.

[0057] A wireless charging system for an electric vehicle provided by an embodiment of the present application. The wireless charging system 1 includes a wireless charging receiving module 10 arranged on the electric vehicle, an in-vehicle low-voltage DC-DC converter 20, and a ground wire 30 connected to the wireless charging receiving module. The wireless charging receiving module 10 is electrically connected to the in-vehicle low-voltage DC-DC converter 20. When the ground wire 30 is connected to a grounding point on the ground, the wireless charging receiving module 10 starts to receive the high-voltage alternating current transmitted by the power grid received by the wireless charging transmitting module 40. The wireless charging receiving module 10 converts the high-voltage alternating current into high-voltage direct current and transmits it to the in-vehicle low-voltage DC-DC converter 20. The in-vehicle low-voltage DC-DC converter 20 converts the high-voltage direct current into low-voltage direct current and transmits it to a storage battery 50 arranged on the electric vehicle.

[0058] According to the wireless charging system for an electric vehicle provided by the present application, wireless charging is combined with battery charging. The high-voltage alternating current is received through the wireless charging receiving module, and the high-voltage direct current is converted into low-voltage direct current by the in-vehicle low-voltage DC-DC converter to supply power to the storage battery, thereby realizing wireless charging of the storage battery of the electric vehicle, improving the vehicle use experience of the electric vehicle, and also improving the reliability and safety of battery charging.

[0059] In several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. The device embodiments described above are only illustrative. For example, the division of the units is only a logical function division, and there can be other division methods in actual implementation. For another example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point, the displayed or discussed coupling or direct coupling or communication connection between each other can be through some communication interfaces. The indirect coupling or communication connection of the device or unit can be in an electrical, mechanical, or other form.

[0060] The units described as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they can be located in one place, or they can be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0061] In addition, the functional units in each embodiment of the present application can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit.

[0062] When the above-mentioned functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a non-volatile computer-readable storage medium executable by a processor. Based on such an understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROM), random access memories (RAM), magnetic disks, or optical discs that can store program codes.

[0063] Finally, it should be noted that the above-mentioned embodiments are only specific implementation manners of this application, used to illustrate the technical solutions of this application, rather than limiting them. The protection scope of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: any person skilled in the art within the technical scope disclosed in this application can still modify the technical solutions recorded in the foregoing embodiments or can easily think of changes, or perform equivalent replacements on some of the technical features; and these modifications, changes, or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

1. A wireless charging system for an electric vehicle, characterized in that: The wireless charging system comprises a wireless charging receiving module arranged on the electric vehicle, an on-board low-voltage DC-DC converter and a ground wire connected to the wireless charging receiving module, wherein the wireless charging receiving module is electrically connected to the on-board low-voltage DC-DC converter; When the grounding wire is connected to the grounding point on the ground, the wireless charging receiving module starts to receive the high-voltage alternating current transmitted by the power grid received by the wireless charging transmitting module, the wireless charging receiving module converts the high-voltage alternating current into high-voltage direct current and transmits it to the on-board low-voltage DC-DC converter, and the on-board low-voltage DC-DC converter converts the high-voltage direct current into low-voltage direct current and transmits it to the battery installed on the electric vehicle.

2. The wireless charging system according to claim 1, characterized in that: The wireless charging receiving module is connected to the vehicle-mounted information processing device, and the wireless charging receiving module sends battery over-discharge prompt information to the vehicle-mounted information processing device.

3. The wireless charging system according to claim 1, characterized in that: The wireless charging receiving module includes a wireless charging vehicle-end coil and a wireless charging vehicle-end module; The wireless charging vehicle-end coil receives the high-voltage alternating current transmitted by the wireless charging transmitting module, and the wireless charging vehicle-end module converts the received high-voltage alternating current into high-voltage direct current.

4. The wireless charging system according to claim 1, characterized in that: The wireless charging transmitting module includes a wireless charging ground terminal module and a wireless charging ground terminal coil; The wireless charging ground terminal module obtains the high-voltage alternating current provided by the power grid, and transmits the received high-voltage alternating current to the wireless charging ground terminal coil.

5. The wireless charging system according to claim 1, characterized in that: The storage battery transmits electric energy to a plurality of low-voltage load modules arranged on the electric vehicle.

6. The wireless charging system according to claim 1, characterized in that: The wireless charging system also includes an on-board charger arranged on the electric vehicle, the on-board charger is connected to the wireless charging receiving module, and the on-board charger transmits the electric energy sent by the wireless charging receiving module to the power battery of the electric vehicle.

7. The wireless charging system according to claim 6, characterized in that: The storage battery and the power battery are respectively connected to the vehicle heater on the electric vehicle, the storage battery transmits low voltage electricity to the vehicle heater, and the power battery transmits high voltage electricity to the vehicle heater, so that the vehicle heater works.

8. The wireless charging system according to claim 6, characterized in that: The power battery is connected to the electric drive assembly on the electric vehicle, and the power battery supplies power to the electric drive assembly so that the electric drive assembly converts electrical energy into mechanical energy to drive the electric vehicle.

9. The wireless charging system according to claim 1, characterized in that: The storage battery transmits electric energy to a plurality of low-voltage load interfaces arranged on the electric vehicle.

10. The wireless charging system according to claim 6, characterized in that: The on-board charger transmits the electric energy sent by the wireless charging receiving module to the power battery through a high-voltage wiring harness.

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