Wireless charging device for electric vehicle

Abstract

The utility model provides an electric vehicle wireless charging device which comprises a charging cabinet, an earth crust and a plurality of wireless charging induction coil modules, the earth crust is connected with the bottom of the charging cabinet, and a wiring cavity with a downward opening is formed below the earth crust; the plurality of wireless charging induction coil modules are fixed on the earth crust at intervals and are connected with the charging cabinet through electric wires, the electric wires are arranged in the wiring cavity, and at least part of each wireless charging induction coil module is arranged in the wiring cavity. According to the wireless charging device for the electric vehicle, the electric wire connecting the charging cabinet and the wireless charging induction coil module is wrapped through the earth crust, and the problem that the electric wire is placed in a mess and is prone to damage is solved.

Description

Technical Field

[0001] The present application relates to the field of wireless charging technology, and in particular to a wireless charging device for electric vehicles. Background Art

[0002] Currently, the wiring of devices that provide wireless charging for electric vehicles is embedded in the ground. Grooves need to be cut in the public ground and the wires need to be buried. Embedded wiring is not convenient for maintenance on the one hand, and on the other hand, it destroys the integrity of the ground and affects the appearance of the ground. Summary of the invention

[0003] The purpose of the present application is to provide a wireless charging device for electric vehicles, which provides a wiring cavity through the earth's crust, and the wireless charging induction coil module and the charging cabinet are routed through the wiring cavity, thereby solving the problem in the prior art that the embedded wiring is inconvenient to maintain and damages the ground.

[0004] In order to achieve one of the above-mentioned purposes of the invention, an embodiment of the present application provides a wireless charging device for an electric vehicle, comprising:

[0005] Charging cabinet;

[0006] A ground shell connected to the bottom of the charging cabinet, a wiring cavity opening downward is formed below the ground shell;

[0007] A plurality of wireless charging induction coil modules are fixed to the ground crust at intervals and connected to the charging cabinet via wires, the wires are arranged in a wiring cavity, and each wireless charging induction coil module is at least partially arranged in the wiring cavity.

[0008] As a further improvement of an embodiment of the present application, the crust includes a first crust and a second crust, two ends of the first crust are respectively connected to the charging cabinet and the second crust, and a plurality of wireless charging induction coil modules are fixed at intervals to the second crust.

[0009] As a further improvement of an embodiment of the present application, the second shell is provided with a plurality of mounting holes at intervals corresponding to the number of wireless charging induction coil modules;

[0010] The wireless charging induction coil module includes a shell and a transmitting coil arranged in the shell, the shell includes a supporting part and a containing part, the containing part passes through the mounting hole and is located in the wiring cavity, and the supporting part is exposed to the surface of the second crust.

[0011] As a further improvement of an embodiment of the present application, it also includes a wireless charging receiver arranged on the electric vehicle, wherein the wireless charging receiver includes a receiving coil arranged on the kick support of the electric vehicle;

[0012] The transmitting coil is arranged in the accommodating portion, and the supporting portion is used to support the electric vehicle kickstand with the receiving coil.

[0013] As a further improvement of an implementation mode of the present application, a transmitting end main control board, a power supply and a switch control board are provided in the charging cabinet.

[0014] As a further improvement of an embodiment of the present application, a 4G communication module is also provided in the charging cabinet.

[0015] As a further improvement of an embodiment of the present application, the charging cabinet includes a cabinet body, and the upper and lower halves on both sides of the cabinet body are respectively provided with air outlets and return air outlets.

[0016] As a further improvement of an implementation manner of the present application, the area occupied by the air outlet is larger than the area occupied by the return air outlet.

[0017] As a further improvement of an embodiment of the present application, a fan is arranged inside the air outlet.

[0018] As a further improvement of an embodiment of the present application, the charging cabinet also includes a cabinet door, on which a charging status indicator light area and a payment area for user payment are provided.

[0019] One or more technical solutions provided by this application have at least the following technical effects or advantages:

[0020] The electric vehicle wireless charging device provided in the present application is provided with a crust between the charging cabinet and the wireless charging induction coil module. The crust can form a wiring cavity with the ground. The connecting wires between the wireless charging induction coil module and the charging cabinet are routed through the wiring cavity, and the wireless charging induction coil module is also at least partially arranged in the wiring cavity for easy routing, without damaging the ground and convenient maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the wireless charging device for electric vehicles in an embodiment of the present application.

[0022] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0023] Figure 3 yes Figure 2 Exploded view of the housing of the wireless charging induction coil module.

[0024] Figure 4 yes Figure 2 Schematic diagram of the structure of the shell of the wireless charging induction coil module.

[0025] Figure 5 yes Figure 1 A top view of the wireless charging device for electric vehicles.

[0026] Figure 6 yes Figure 5 Schematic cross-sectional view along line BB.

[0027] 1. Charging cabinet; 11. Cabinet; 111. Air outlet; 112. Air return outlet; 113. Fan; 12. Cabinet door; 121. Charging status indicator light area; 122. Payment area; 13. Transmitter main control board; 14. Power supply; 15. Switch control board; 2. Crust; 21. First crust; 211. First flange; 2111. First fixing hole; 22. Second crust; 221. Second flange; 2211. Second fixing hole; 3. Wireless charging induction coil module; 31. Shell; 311. Support part; 312. Accommodating part; 313. Shell; 3131. Wire outlet; 314. Cover; 32. Charging status indicator light. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] Terms such as "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used herein to indicate spatial relative positions are used for the purpose of convenience to describe the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. Terms of spatial relative positions may be intended to include different orientations of the device in use or operation other than the orientation shown in the drawings.

[0030] For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] Furthermore, it should be understood that although the terms first, second, etc. may be used herein to describe various elements or structures, these described objects should not be limited by these terms. These terms are only used to distinguish these described objects from each other. For example, the first crust may be referred to as the second crust, and similarly the second crust may also be referred to as the first crust, without departing from the scope of protection of this application.

[0033] The present application embodiment provides a wireless charging device for an electric vehicle, such as Figure 1 As shown, it includes a charging cabinet 1, a crust 2 and a plurality of wireless charging induction coil modules 3. The crust 2 is connected to the bottom of the charging cabinet 1, and a wiring cavity opening downward is formed under the crust 2; the plurality of wireless charging induction coil modules 3 are fixed to the crust 2 at intervals and connected to the charging cabinet 1 through wires, and the wires are arranged in the wiring cavity, and each wireless charging induction coil module 3 is at least partially arranged in the wiring cavity.

[0034] The charging cabinet 1 is connected to the wireless charging induction coil module 3 by wires. The wireless charging device for electric vehicles provided in the present application is provided with a ground shell 2. The ground shell 2 forms a wiring cavity with an opening downward for wiring. The ground shell 2 can cooperate with the ground, and the wires connecting each wireless charging induction coil module 3 and the charging cabinet 1 are arranged between the ground shell 2 and the ground. Each wireless charging induction coil module 3 is at least partially arranged in the wiring cavity, so that the wireless charging induction coil module 3 can be connected to the charging cabinet 1 after it is connected in the wiring cavity. With the protection of the ground shell 2, the wires can be prevented from being scattered on the ground, which makes them untidy and easy to be damaged, and at the same time, it will not affect the maintenance of the wireless charging device for electric vehicles.

[0035] In some embodiments, the crust 2 includes a first crust 21 and a second crust 22, the two ends of the first crust 21 are respectively connected to the charging cabinet 1 and the second crust 22, and a plurality of wireless charging induction coil modules 3 are fixed at intervals in the second crust 22. The first crust 21 is connected to the charging cabinet 1, and accommodates a plurality of wires extending from the charging cabinet 1 and connected to the wireless charging induction coil module 3, and the plurality of wires are dispersed in the second crust 22 to the positions where the wireless charging induction coil modules 3 are located.

[0036] like Figure 1 In the figure, the length direction of the first crust 21 is perpendicular to the front side of the charging cabinet 1 , and the length direction of the second crust 22 is perpendicular to the length direction of the first crust 21 . Figure 2The two long sides of the first crust 21 are both provided with first flanges 211, and the first flanges 211 are provided with a plurality of first fixing holes 2111 at intervals along the length direction thereof. The first flanges 211 are used to be in close contact with the ground and fixed to the ground through the first fixing holes 2111, and are usually fixed to the ground with expansion screws. Similarly, the two long sides of the second crust 22 are provided with second flanges 221, and the second flanges 221 are provided with a plurality of second fixing holes 2211 at intervals along the length direction thereof. The second flanges 221 are used to be in close contact with the ground and fixed to the ground through the second fixing holes 2211, and may adopt the same fixing method as the first flanges 211 or a fixing method different from the first flanges 211.

[0037] In some embodiments, the second crust 22 is provided with a plurality of mounting holes at intervals corresponding to the number of wireless charging induction coil modules 3; the wireless charging induction coil module 3 includes a shell 31 and a transmitting coil disposed in the shell 31, the shell 31 includes a support portion 311 and a receiving portion 312, the receiving portion 312 passes through the mounting hole and is located in the wiring cavity, and the support portion 311 is exposed to the surface of the second crust 22. The mounting holes are arranged at intervals along the length direction of the second crust 22 (the mounting holes are blocked by the wireless charging induction coil module 3 and are not shown in the figure), so that the plurality of wireless charging induction coil modules 3 are also arranged at intervals along the length direction of the second crust 22, the receiving portion 312 of the shell 31 passes through the mounting hole from top to bottom, and the support portion 311 is exposed to the surface of the second crust 22, as shown in FIG. Figure 2 In the figure, the support portion 311 has a lightning pattern to remind the user to charge here.

[0038] In some embodiments, the electric vehicle wireless charging device provided by the present application further includes a wireless charging receiver disposed on the electric vehicle, and the wireless charging receiver includes a receiving coil disposed on the electric vehicle kickstand; the transmitting coil is disposed in the accommodating portion 312, and the supporting portion 311 is used to support the electric vehicle kickstand with the receiving coil. The wireless charging receiver also includes a receiving end main control board, which is used to process the energy signal received by the receiving coil and transmit it to the battery of the electric vehicle. The installation position of the receiving end main control board is not fixed and is determined according to the model of the electric vehicle, etc.

[0039] like Figure 3 , 4 In the figure, the shell 31 includes a shell body 313 and a cover body 314. The upper half of the shell body 313 is formed as a support portion 311 with a lightning pattern, and the lower half and the cover body 314 form a receiving portion 312. The side of the lower half of the shell body 313 is provided with a wire outlet 3131. After the transmitting coil is placed in the shell body 313, the wire is discharged from the wire outlet 3131 and the cover body 314 is closed.

[0040] The wireless charging induction coil modules 3 are arranged at intervals along the length direction of the second crust 22. Since the electric vehicle wireless charging device provided in the present application is provided with a receiving coil on the electric vehicle kickstand, the electric vehicle is parked along a length direction perpendicular to the second crust 22, and the front wheels of the electric vehicle need to cross the second crust 22. Therefore, both long sides of the second crust 22 are formed as slopes to facilitate users to cross the second crust 22.

[0041] In some embodiments, a transmitter main control board 13, a power supply 14 and a switch control board 15 are provided in the charging cabinet 1. The number of switches on the switch control board 15 and the number of transmitter main control boards 13 are the same as the number of wireless charging induction coil modules 3, and each transmitter main control board 13 and switch are connected to a corresponding wireless charging induction coil module 3; the power supply 14 is used to supply power to the transmitter main control board 13, and the number of power supplies 14 is usually less than or equal to the number of wireless charging induction coil modules 3.

[0042] In some embodiments, a 4G communication module is also provided in the charging cabinet 1 for connecting with software such as WeChat and Alipay to pay for charging service fees. The 4G communication module is integrated into the switch control board 15, which is not shown in the figure.

[0043] In some embodiments, the charging cabinet 1 includes a cabinet body 11, and the upper and lower halves of both sides of the cabinet body 11 are respectively provided with an air outlet 111 and an air return outlet 112. Figure 6 In the embodiment, the air outlet 111 and the return air outlet 112 are both configured in a grille shape, and the air outlet 111 and the return air outlet 112 cooperate to allow air to circulate inside and outside the cabinet 11 to help dissipate heat inside the cabinet 11 .

[0044] In some embodiments, the area occupied by the air outlet 111 is larger than the area occupied by the air return outlet 112 , so that the hot air in the cabinet 11 can be more easily dissipated out of the cabinet 11 .

[0045] In some embodiments, a fan 113 is disposed inside the air outlet 111, and the fan 113 can accelerate the circulation of air inside and outside the cabinet 11. Of course, a fan 113 can also be disposed at the return air outlet 112 to cooperate with the fan 113 at the air outlet 111 to strengthen the circulation of air.

[0046] In some embodiments, the charging cabinet 1 further includes a cabinet door 12 , on which a charging status indicator light area 121 and a payment area 122 for user payment are provided.

[0047] The charging status indicator light area 121 is arranged in sequence with charging status indicator lights, which can display the working status of each wireless charging induction coil module 3 on the second shell 22. Figure 2A charging status indicator light 32 is also provided on the housing 32 of the wireless charging induction coil module 3; the payment area 122 can be pasted with a QR code to realize online payment charging such as WeChat and Alipay, and an NFC module can also be provided for card payment.

[0048] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0049] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present application. They are not intended to limit the scope of protection of the present application. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present application should be included in the scope of protection of the present application.

Claims

1. A wireless charging device for electric vehicles, characterized in that: include: Charging cabinet; A ground shell connected to the bottom of the charging cabinet, a wiring cavity opening downward is formed below the ground shell; A plurality of wireless charging induction coil modules are fixed to the ground crust at intervals and connected to the charging cabinet via wires, the wires are arranged in a wiring cavity, and each wireless charging induction coil module is at least partially arranged in the wiring cavity.

2. The wireless charging device for electric vehicles according to claim 1, characterized in that: The crust includes a first crust and a second crust, two ends of the first crust are respectively connected to the charging cabinet and the second crust, and a plurality of wireless charging induction coil modules are fixed to the second crust at intervals.

3. The wireless charging device for electric vehicles according to claim 2, characterized in that: The second shell is provided with a plurality of mounting holes at intervals corresponding to the number of wireless charging induction coil modules; The wireless charging induction coil module includes a shell and a transmitting coil arranged in the shell, the shell includes a supporting part and a containing part, the containing part passes through the mounting hole and is located in the wiring cavity, and the supporting part is exposed to the surface of the second crust.

4. The wireless charging device for electric vehicles according to claim 3, characterized in that: It also includes a wireless charging receiver disposed on the electric vehicle, wherein the wireless charging receiver includes a receiving coil disposed on the kick support of the electric vehicle; The transmitting coil is arranged in the accommodating portion, and the supporting portion is used to support the electric vehicle kickstand with the receiving coil.

5. The wireless charging device for electric vehicles according to claim 1, characterized in that: The charging cabinet is provided with a transmitter main control board, a power supply and a switch control board.

6. The wireless charging device for electric vehicles according to claim 5, characterized in that: A 4G communication module is also provided in the charging cabinet.

7. The wireless charging device for electric vehicles according to claim 1, characterized in that: The charging cabinet comprises a cabinet body, and the upper half and the lower half of both sides of the cabinet body are respectively provided with an air outlet and an air return outlet.

8. The wireless charging device for electric vehicles according to claim 7, characterized in that: The area occupied by the air outlet is larger than the area occupied by the return air outlet.

9. The wireless charging device for electric vehicles according to claim 8, characterized in that: A fan is arranged inside the air outlet.

10. The wireless charging device for electric vehicles according to claim 7, characterized in that: The charging cabinet also includes a cabinet door, on which a charging status indicator light area and a payment area for users to pay are provided.

Images