Automobile wireless charging system

Abstract

A wireless charging system for automobiles includes a ground-based power transmitter and an on-board power receiver. The ground-based power transmitter is installed on the ground and switches between a standby state and a charging state. The on-board power receiver is installed on the vehicle. The ground-based power transmitter includes a power transmitting component, a lifting component, and a housing. In the standby state, both the lifting component and the power transmitting component are housed in the housing. When switching from the standby state to the charging state, the housing opens, and the lifting component raises the power transmitting component vertically so that it contacts the on-board power receiver for charging. Because there is no gap between the power transmitting component and the on-board power receiver, the system has a compact structure and small size, which can reduce costs and improve charging efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile charging, in particular to an automobile wireless charging system. BACKGROUND

[0002] The current automobile wireless charging system generally comprises a transmitting module arranged on the ground and a receiving module arranged on the automobile. When the automobile drives into the charging area, the transmitting module transmits electromagnetic waves to the receiving module, and the receiving module receives the electromagnetic waves and forms electric energy through conversion.

[0003] The transmitting module and the receiving module of the current automobile wireless charging system have a large charging distance, the system is large in size, high in cost and low in charging efficiency. SUMMARY

[0004] The purpose of the present application is to provide an automobile wireless charging system which can solve the above problems.

[0005] To achieve the purpose of the present application, the present application provides the following technical solutions:

[0006] The present application provides an automobile wireless charging system, comprising a ground electric energy transmitting device and a vehicle-mounted electric energy receiving device. The ground electric energy transmitting device is arranged on the ground. The ground electric energy transmitting device is switched between a standby state and a charging state. The vehicle-mounted electric energy receiving device is arranged on the automobile. The ground electric energy transmitting device comprises an electric energy transmitting assembly, a lifting assembly and a shell. In the standby state, the lifting assembly and the electric energy transmitting assembly are both accommodated by the shell. When switched from the standby state to the charging state, the shell is opened. The lifting assembly drives the electric energy transmitting assembly to rise in the vertical direction, so that the electric energy transmitting assembly contacts the vehicle-mounted electric energy receiving device for charging.

[0007] In an embodiment, the shell comprises a shell body, a cover plate and a linkage mechanism. The shell body is provided with an opening facing away from the ground. The cover plate is connected to the shell body through the linkage mechanism. In the standby state, the cover plate closes the opening. When switched from the standby state to the charging state, the lifting assembly operates. The linkage mechanism follows the linkage to drive the cover plate to move, so as to expose the opening, and the electric energy transmitting assembly extends from the opening.

[0008] In an embodiment, the lifting assembly comprises a driving member and a transmission member. The driving member is arranged in the shell body. The transmission member connects the driving member and the electric energy transmitting assembly. The linkage mechanism is connected to the transmission member or the electric energy transmitting assembly.

[0009] In one embodiment, the cover plate comprises two pieces, the linkage mechanism comprises a plurality of links, and the two pieces of the cover plate are connected with the links. When switching from the standby state to the charging state, the two pieces of the cover plate move to opposite sides respectively to expose the opening.

[0010] In one embodiment, the transmission member comprises any one of a worm gear, a gear rack, and a screw-nut transmission structure.

[0011] In one embodiment, the shell comprises a bottom plate and a plurality of side plates. The plurality of side plates are connected to edges of the bottom plate. The plurality of side plates and the bottom plate jointly enclose a receiving cavity. The electric energy emitting assembly and the lifting assembly are accommodated in the receiving cavity. An end of the plurality of side plates away from the bottom plate encloses the opening.

[0012] In one embodiment, one end of the side plate is connected to an edge of the bottom plate, and the other end of the side plate extends towards the middle part of the bottom plate, so that the shell forms an inclined outer surface.

[0013] In one embodiment, the side plate is provided with a receiving groove. When the electric energy emitting assembly completely extends out of the opening, the cover plate is attached to the side plate, and the linkage mechanism is accommodated in the receiving groove. The linkage mechanism accommodated in the receiving groove can make the cover plate completely attached to the side plate. Since the side plate is inclined relative to the ground, the cover plate needs to be inclined to adapt to the inclined shape of the cover plate during the movement process. Therefore, the cover plate also assumes an inclined shape during the process of rising from the closed opening and opening to both sides. The opposite side of the two cover plates is high, and the opposite side of the two cover plates is low. If there is foreign matter (such as fallen leaves, cigarette butts, or gravel) on the cover plate, the foreign matter will fall from the lower side of the cover plate under the action of gravity during the movement of the cover plate, so that there is no foreign matter on the electric energy emitting assembly, and the foreign matter does not affect charging. Therefore, the wireless charging system of the present application does not need to be provided with a foreign matter detection and living body detection function.

[0014] In one embodiment, the electric energy emitting assembly comprises a first charging surface, and one side of the first charging surface is provided with a sensor. The vehicle-mounted electric energy receiving device comprises a second charging surface. The sensor is used to detect the interval distance between the first charging surface and the second charging surface. When in the charging state, the first charging surface and the second charging surface are in contact, and the sensor feeds back an electric signal for controlling the lifting assembly to stop the rising action.

[0015] In one embodiment, the automobile wireless charging system further comprises a ground power electronic control unit and a vehicle-mounted power electronic control unit, the ground power electronic control unit is arranged on the ground and electrically connected with at least one ground electric energy transmitting device, and the vehicle-mounted power electronic control unit is arranged on the automobile and electrically connected with the vehicle-mounted electric energy receiving device.

[0016] The shell of the ground electric energy transmitting device is openable, and the electric energy transmitting assembly can be lifted by the lifting assembly to contact the vehicle-mounted electric energy receiving device on the automobile to perform charging. Since the electric energy transmitting assembly and the vehicle-mounted electric energy receiving device are in contact without spacing therebetween, the system has compact structure and small volume, and can reduce cost and improve charging efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort based on these drawings.

[0018] Figure 1 A schematic view of an automobile wireless charging system according to one embodiment;

[0019] Figure 2 A schematic view of an automobile wireless charging system according to one embodiment;

[0020] Figure 3 A schematic view of an automobile performing wireless charging at a parking space;

[0021] Figure 4 A side view of an automobile performing wireless charging;

[0022] Figure 5a - Figure 5d A schematic view of a process of an automobile wireless charging system performing wireless charging;

[0023] Figure 6a - Figure 6d A schematic view of a process of a ground electric energy transmitting device performing wireless charging;

[0024] Figure 7 An exploded schematic view of an internal structure of a ground electric energy transmitting device.

[0025] BRIEF DESCRIPTION OF DRAWINGS

[0026] 100 - parking space, 101 - ground, 102 - driving direction sign, 104 - wheel positioning block, 110 - support plate, 111 - support surface;

[0027] 200 - car, 201 - car head, 202 - car tail;

[0028] 10 - ground power transmitting device, 11 - power transmitting assembly, 114 - sensor, 115 - first charging surface, 12 - lifting assembly, 121 - driving member, 1211 - bevel gear one, 122 - transmission rod, 1221 - bevel gear two, 1222 - bevel gear three, 123 - base, 124 - lead screw, 1241 - bevel gear four, 125 - sliding block nut, 126 - connecting rod, 127 - supporting block, 13 - shell, 131 - bottom plate, 132 - side plate, 133 - containing cavity, 134 - containing groove, 14 - cover plate, 15 - connecting rod mechanism;

[0029] 20 - ground power electronic control unit;

[0030] 30 - vehicle-mounted power receiving device, 31 - second charging surface;

[0031] 40 - vehicle-mounted power electronic control unit. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0033] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to or "coupled" to another element, it can be directly connected to the other element or intervening elements can also be present.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this description, the singular forms "a", "an" and "the" include plural references unless the context clearly dictates otherwise. The term "and / or" includes any and all combinations of one or more of the associated listed items.

[0035] Some embodiments of the present application will be described in detail with reference to the drawings, in which:

[0036] Reference will now be made to Figure 1 and Figure 2The application provides a wireless charging system for a vehicle, which comprises ground power transmitting devices 10 and vehicle-mounted power receiving devices 30. The ground power transmitting devices 10 are arranged on the ground 101, and the ground power transmitting devices 10 are switched between standby state and charging state. The vehicle-mounted power receiving devices 30 are arranged on the vehicle 200.

[0037] The ground power transmitting devices 10 can be arranged on the ground 101 of the parking space 100, or a groove can be dug on the ground 101 of the parking space 100, and the ground power transmitting devices 10 are arranged in the groove. Alternatively, the parking space 100 has a convex platform, and the ground power transmitting devices 10 are arranged on the convex platform. The vehicle-mounted power receiving devices 30 are arranged on the chassis of the vehicle 200, and can be arranged on the chassis near the front 201 or the rear 202 of the vehicle (as shown in the figure). Figure 3 The ground 101 of the parking space 100 can be provided with a driving indication sign 102, and the vehicle 200 drives into the parking space 100 and stops according to the indication of the driving indication sign 102, so that the vehicle-mounted power receiving devices 30 on the vehicle 200 are aligned with the ground power transmitting devices 10. Of course, the wireless charging system for the vehicle of the application is not limited to be applied to the parking space 100, and can be applied to any parking position.

[0038] The wireless charging system for the vehicle further comprises a ground power electronic control unit 20 and a vehicle-mounted power electronic control unit 40. The ground power electronic control unit 20 is arranged on the ground 101 and electrically connected with at least one ground power transmitting device 10. The vehicle-mounted power electronic control unit 40 is arranged on the vehicle 200 and electrically connected with the vehicle-mounted power receiving devices 30.

[0039] One side of the parking space 100 can be provided with a support plate 110 or a wall, and the support plate 110 or the wall has a support surface 111. The ground power electronic control unit 20 can be arranged on the support surface 111 or hung on the support surface 111. Figure 1 As shown in the figure, one ground power electronic control unit 20 corresponds to one parking space 100, that is, one ground power electronic control unit 20 is electrically connected with one ground power transmitting device 10. Figure 2 As shown in the figure, one ground power electronic control unit 20 corresponds to three parking spaces 100, that is, one ground power electronic control unit 20 is electrically connected with three ground power transmitting devices 10. The electrical connection between the ground power electronic control unit 20 and the ground power transmitting device 10 can be wireless connection or cable connection, and is not limited in particular. The vehicle-mounted power electronic control unit 40 is arranged in the vehicle 200, and the electrical connection between the vehicle-mounted power electronic control unit 40 and the vehicle-mounted power receiving devices 30 can be wireless connection or cable connection, and is not limited in particular.

[0040] As shown in the figure, Figure 2 and Figure 3As shown, the vehicle-mounted electric energy receiving device 30 can be arranged at the chassis of the front 201 or the rear 202 of the car 200, Figure 3 In the leftmost parking space 100, the vehicle-mounted electric energy receiving device 30 is arranged at the chassis of the rear 202, and the car 200 can be wirelessly charged after reversing into the garage, Figure 3 In the middle parking space 100, the vehicle-mounted electric energy receiving device 30 is arranged at the chassis of the front 201, and the car 200 can be wirelessly charged after driving into the garage. Figure 3 As shown, the ground 101 of the parking space 100 is provided with a wheel positioning block 104. When the car 200 drives into the parking space 100 and the wheels are in contact with the wheel positioning block 104, the vehicle-mounted electric energy receiving device 30 on the car 200 is just aligned with the ground electric energy transmitting device 10 on the ground 101 of the parking space 100, and the wireless charging can be performed.

[0041] As shown in Figure 3 and Figure 4 , when the vehicle-mounted electric energy receiving device 30 is arranged at the chassis of the front 201 of the car 200, the car 200 drives into the garage and the front wheels are in contact with the wheel positioning block 104, the vehicle-mounted electric energy receiving device 30 is aligned with the ground electric energy transmitting device 10, and the wireless charging can be performed. Of course, the front wheels of the car 200 can also not be in contact with the wheel positioning block 104, but the wheels can be in contact with the ground electric energy transmitting device 10, and the wireless charging can be performed. The specific choice of when to stop for wireless charging can be set according to the actual situation.

[0042] The ground electric energy transmitting device 10 switches between standby state and charging state. When the car 200 drives into the parking space 100 and stops at the predetermined position, the ground electric energy transmitting device 10 can switch from standby state to charging state. When the car 200 is fully charged, the ground electric energy transmitting device 10 can switch from charging state back to standby state, and the car 200 can drive out of the parking space 100.

[0043] Please refer to Figure 5a - Figure 5d , and Figure 6a - Figure 6d , the ground electric energy transmitting device 10 includes an electric energy transmitting assembly 11, a lifting assembly 12 and a shell. Please refer to Figure 5a and Figure 6a , in standby state, the lifting assembly 12 and the electric energy transmitting assembly 11 are both housed by the shell. Please refer to Figure 5b - Figure 5d , and Figure 6b - Figure 6d When switching from standby state to charging state, the shell is opened, the lifting assembly 12 drives the electric energy transmitting assembly 11 to rise in the vertical direction, so that the electric energy transmitting assembly 11 is in contact with the vehicle-mounted electric energy receiving device 30 for charging. Specifically, as Figure 5a -Figure 5b and Figure 6a As shown in Fig. 6b, in the standby state, the lifting assembly 12 and the electric energy transmitting assembly 11 are accommodated in the shell. When switching from the standby state to the charging state, the shell is gradually opened, the lifting assembly 12 starts to drive the electric energy transmitting assembly 11 to move, and the electric energy transmitting assembly 11 starts to be exposed. Please refer to Figure 5b - Figure 5c and Figure 6b - Figure 6c The shell continues to open, the lifting assembly 12 continues to drive the electric energy transmitting assembly 11 to rise, and the exposure area of the electric energy transmitting assembly 11 increases. Please refer to Figure 5c - Figure 5d and Figure 6c - Figure 6d The shell is opened to the maximum, the electric energy transmitting assembly 11 is exposed to the maximum, the lifting assembly 12 continues to drive the electric energy transmitting assembly 11 to rise, until the electric energy transmitting assembly 11 contacts with the vehicle-mounted electric energy receiving device 30, at which time charging is performed. The switching from the standby state to the charging state and the switching from the charging state to the standby state can be reversed, and the movement process of the ground electric energy transmitting device 10 can be reversed.

[0044] The shell 13 of the ground electric energy transmitting device 10 can be opened, and the electric energy transmitting assembly 11 can be driven by the lifting assembly 12 to rise and contact with the vehicle-mounted electric energy receiving device 30 on the automobile 200 to charge. Since the electric energy transmitting assembly 11 contacts with the vehicle-mounted electric energy receiving device 30 without spacing therebetween, the system structure is compact and small in size, the cost can be reduced, and the charging efficiency can be improved.

[0045] Please refer to Figure 5a - Figure 5d and Figure 6a - Figure 6d The shell includes the shell body 13, the cover plate 14 and the connecting rod mechanism 15. The shell body 13 is provided with an opening (not shown) facing away from the ground 101. The cover plate 14 is connected with the shell body 13 through the connecting rod mechanism 15. In the standby state, the cover plate 14 closes the opening. When switching from the standby state to the charging state, the lifting assembly 12 operates, the connecting rod mechanism 15 follows to drive the cover plate 14 to move, so as to expose the opening, and the electric energy transmitting assembly 11 extends out of the opening.

[0046] Specifically, as shown in Figure 5a - Figure 5b and Figure 6a - Figure 6bThe opening is arranged on the top of the shell 13, and the electric energy transmitting assembly 11 and the lifting assembly 12 are arranged in sequence from the opening to the ground 101 in the vertical direction. In the standby state, the cover plate 14 covers the opening, so that the shell 13 forms a complete and unified appearance. When switching from the standby state to the charging state, the electric energy transmitting assembly 11 starts to rise under the driving of the lifting assembly 12, and at the same time, the connecting rod mechanism 15 follows the movement to drive the cover plate 14 to gradually open the opening. When the cover plate 14 moves, the cover plate 14 can first rise and then move to the side of the shell 13 to expose the opening. Please refer to Figure 5b Figure 5c Figure 6b Figure 6c The connecting rod mechanism 15 drives the cover plate 14 to continue to move, and the opening gradually increases to completely expose the opening, and at the same time, the electric energy transmitting assembly 11 driven by the lifting assembly 12 has started to pass through the opening and gradually extend to the top of the shell 13. Please refer to Figure 5c Figure 5d Figure 6c Figure 6d When the connecting rod mechanism 15 drives the cover plate 14 to move to the side of the shell 13 and the electric energy transmitting assembly 11 contacts the vehicle-mounted electric energy receiving device 30, charging is performed, and at this time, the lifting mechanism stops moving until the charging is completed. After the charging is completed, switching from the charging state to the standby state can be performed in the reverse direction of the above-mentioned movement, that is, the lifting mechanism drives the electric energy transmitting assembly 11 to descend until the electric energy transmitting assembly 11 is retracted into the shell 13 from the opening, and at the same time, the connecting rod mechanism 15 drives the cover plate 14 to gradually move until the cover plate 14 covers the opening to close the opening. The connecting rod mechanism 15 drives the cover plate 14 to move so that the cover plate 14 covers the opening or exposes the opening, and when the cover plate 14 covers the opening, the shell has a complete and unified appearance, and when the cover plate 14 moves to the side of the shell 13 to expose the opening, the electric energy transmitting assembly 11 can extend from the opening for charging, which is simple in structure.

[0047] Optionally, please refer to Figure 5a Figure 5d Figure 6a Figure 6d The shell 13 includes a bottom plate 131 and a plurality of side plates 132, the plurality of side plates 132 are connected to the edges of the bottom plate 131, the plurality of side plates 132 and the bottom plate 131 jointly enclose a containing cavity 133, the electric energy transmitting assembly 11 and the lifting assembly 12 are contained in the containing cavity 133, and the plurality of side plates 132 enclose the opening at the ends away from the bottom plate 131. The number of the side plates 132 can be four or more.

[0048] Optionally, please refer to Figure 5a Figure 5d Figure 6a Figure 6d ​​​​​​​​​​​​, one end of the side plate 132 is connected with the edge of the bottom plate 131, and the other end of the side plate 132 extends towards the middle part of the bottom plate 131, so that the shell forms an inclined outer surface. In combination Figure 4 , the inclined outer surface of the shell can be used for the vehicle of the automobile 200 to roll over, so that when the automobile 200 drives into the parking space 100 for wireless charging, even if the wheels roll over the ground power emission device 10 due to misoperation, the protection of the shell can avoid damage to the power emission assembly 11 and the lifting assembly 12 and other structures inside the shell.

[0049] Optionally, please refer to Figure 5a - Figure 5d , and Figure 6a - Figure 6d , the cover plate 14 includes two cover plates, and the link mechanism 15 includes a plurality of links, and each of the two cover plates 14 is connected with a link, and when switching from the standby state to the charging state, the two cover plates 14 move to the opposite sides respectively to expose the opening. The number of links connected to each cover plate 14 is the same, and the structure and arrangement of the links connected to the two cover plates 14 are symmetrical relative to the middle part of the opening, and the movement of the two cover plates 14 and the corresponding links is also symmetrical when the cover plates 14 move. The number of links is not specifically limited.

[0050] Optionally, please refer to Figure 5a and Figure 5d , the side plate 132 is provided with a receiving groove 134, and when the power emission assembly 11 completely extends from the opening, the cover plate 14 is attached to the side plate 132, and the link mechanism 15 is accommodated in the receiving groove 134.

[0051] The link mechanism 15 is accommodated in the receiving groove 134, so that the cover plate 14 can be completely attached to the side plate 132. Since the side plate 132 is inclined relative to the ground 101, the cover plate 14 needs to be inclined to adapt to the inclined shape of the cover plate 14 when being attached to the side plate 132 during movement. Therefore, the cover plate 14 will also be inclined during the process of rising from the closed opening and opening to the two sides, and the opposite side of the two cover plates 14 is high, and the opposite side of the two cover plates 14 is low. If there are foreign matters (such as fallen leaves, cigarette butts or stones, etc.) on the cover plate 14, the foreign matters will fall from the lower side of the cover plate 14 under the action of gravity during the movement of the cover plate 14, so that there are no foreign matters on the power emission assembly 11. Therefore, the wireless charging system of the present application does not need to be provided with foreign matter detection and living body detection functions.

[0052] Optionally, please refer to Figure 5a - Figure 5d and Figure 7 , the lifting assembly 12 includes a driving member 121 and a transmission member, the driving member 121 is arranged in the shell 13, the transmission member is connected with the driving member 121 and the power emission assembly 11, and the link mechanism 15 is connected with the transmission member or the power emission assembly 11.

[0053] The driving component 121 can be a motor. During the process of the driving component 121 driving the transmission component to move the power transmitting component 11, the linkage mechanism 15 can be connected to the transmission component or the power transmitting component 11. The linkage mechanism 15 moves with the movement of the transmission component or the power transmitting component 11. The linkage mechanism 15 then drives the cover plate 14 to move, so as to realize the action of the cover plate 14 closing the opening and revealing the opening.

[0054] Optionally, the transmission component can be any type of transmission structure, such as worm gear, gear rack, lead screw and nut, without specific restrictions, as long as the structure can realize the lifting action.

[0055] Please refer to Figure 7 The diagram illustrates the specific structure of a lifting assembly 12, which includes a drive component 121 and a transmission component. The drive component 121 has an output shaft, on which a bevel gear 1211 is connected. The transmission component includes a transmission rod 122, a base 123, a lead screw 124, a slider nut 125, a connecting rod 126, and a support block 127. A bevel gear 1221 is connected to the middle of the transmission rod 122, and a bevel gear 1222 is connected to each end. Both ends of the transmission rod 122 are rotatably connected to a base 123. A slide rail is provided on the base 123. A bevel gear 1241 is connected to the middle of the lead screw 124, and threads are present on both sides of the lead screw 124. A slider nut 125 is slidably connected to the slide rail, and the slider nut 125 is threaded into the lead screw 124. Each base 123 is slidably connected to two slider nuts 125. There are two connecting rods 126, each rotatably connected to one slider nut 125. The ends of the two connecting rods 126 furthest from the slider nut 125 are rotatably connected. A support block 127 is connected to the ends of each connecting rod 126 furthest from the slider nut 125. The support block 127 is used to connect to the power transmission assembly 11.

[0056] During operation, the output shaft of the drive component 121 rotates, driving the first bevel gear 1211 to rotate. The first bevel gear 1211 drives the second bevel gear 1221 of the transmission rod 122 to rotate, and the second bevel gear 1221 drives the transmission rod 122 to rotate. The rotation of the transmission rod 122 drives the third bevel gear 1222 at both ends to rotate. The rotation of the third bevel gear 1222 drives the fourth bevel gear 1241 of the lead screw 124 to rotate. The rotation of the fourth bevel gear 1241 drives the lead screw 124 to rotate, and the rotation of the lead screw 124 drives the two slider nuts 125 to move relative to each other or in opposite directions. The movement of the two slider nuts 125 drives the two connecting rods 126 to rotate relative to each other, thereby causing the support block 127 to rise or fall, and thus causing the power transmitting component 11 to rise or fall.

[0057] The lifting assembly 12 described above adopts a common structure, which has good stability and can improve the reliability of the lifting assembly 12.

[0058] Please refer to Figure 5a - Figure 5d , Figure 6a - Figure 6d and Figure 7 The power transmitting component 11 includes a first charging surface 115, and a sensor 114 is provided on one side of the first charging surface 115. The on-board power receiving device 30 includes a second charging surface 31. The sensor 114 is used to detect the distance between the first charging surface 115 and the second charging surface 31. When in a charging state, the first charging surface 115 and the second charging surface 31 are in contact, and the sensor 114 feeds back an electrical signal to control the lifting component 12 to stop its upward movement.

[0059] Sensor 114 can be connected to the control unit of ground power electronic control unit 20. The electrical signal fed back by sensor 114 is transmitted to the control unit, and the control unit then controls the lifting assembly 12 to stop the lifting action.

[0060] When the first charging surface 115 and the second charging surface 31 come into contact, the power transmitting component 11 provides power, which is transmitted through the first charging surface 115 to the second charging surface 31. The power received by the second charging surface 31 can be transmitted to the battery of the vehicle 200 through the internal components of the on-board power receiving device 30, thereby achieving charging. The power transmission between the first charging surface 115 and the second charging surface 31 can be achieved by forming a transformer-like structure through a magnetic core, coil, or other structure, and by using the electromagnetic induction effect, the power provided by the ground power transmitting device 10 is transmitted to the on-board power receiving device 30.

[0061] The present application provides a detailed description of a wireless charging system for automobiles. Specific examples have been used to illustrate the principles and embodiments of the present application. The description of the embodiments above is only for the purpose of helping to understand the method and core ideas of the present application. At the same time, for those skilled in the art, there will be changes in specific embodiments and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.

Claims

1. A wireless charging system for automobiles, characterized in that, The device includes a ground-based power transmitter and a vehicle-mounted power receiver. The ground-based power transmitter is installed on the ground and switches between a standby state and a charging state. The vehicle-mounted power receiver is installed on a vehicle. The ground-based power transmitter includes a power transmitter component, a lifting component, and a housing. In the standby state, both the lifting component and the power transmitter component are housed in the housing. When switching from the standby state to the charging state, the housing opens, and the lifting component raises the power transmitter component vertically so that it contacts the vehicle-mounted power receiver for charging. The outer casing includes a housing, a cover plate, and a linkage mechanism. The housing has an opening facing away from the ground. The cover plate is connected to the housing via the linkage mechanism. In the standby state, the cover plate closes the opening. When switching from the standby state to the charging state, the lifting component is activated, and the linkage mechanism follows suit to move the cover plate to expose the opening. The power transmitting component extends out from the opening. The housing includes side panels that form an inclined outer surface of the housing, and the cover plate is attached to the side panels when the power transmitting assembly is fully extended from the opening; The lifting assembly includes a driving component and a transmission component. The driving component is disposed inside the housing. The transmission component connects the driving component and the power transmitting assembly. The linkage mechanism is connected to the transmission component or the power transmitting assembly. During the process of the drive member driving the transmission member to move the power transmitting component, the linkage mechanism moves along with the movement of the transmission member or the power transmitting component, and the linkage mechanism then drives the cover plate to move, so as to realize the action of the cover plate closing the opening and exposing the opening; The transmission component includes a base, a lead screw, two slider nuts, two connecting rods, and a support block. The base is slidably connected to the two slider nuts, and the slider nuts are threadedly engaged with the lead screw. Each connecting rod is rotatably connected to one slider nut, and the ends of the two connecting rods away from the slider nuts are rotatably connected. The support block is connected to the ends of the two connecting rods away from the slider nuts, and the support block is used to connect to the power transmission assembly.

2. The wireless charging system for automobiles as described in claim 1, characterized in that, The cover plate includes two pieces, and the linkage mechanism includes multiple linkages. Each of the two cover plates is connected to a linkage. When switching from the standby state to the charging state, the two cover plates move to opposite sides to expose the opening.

3. The automotive wireless charging system as described in claim 1, characterized in that, The housing includes a base plate and a plurality of side plates. The plurality of side plates are connected to the edge of the base plate. The plurality of side plates and the base plate together enclose a receiving cavity. The power transmitting component and the lifting component are housed in the receiving cavity. The ends of the plurality of side plates away from the base plate enclose and form the opening.

4. The wireless charging system for automobiles as described in claim 3, characterized in that, One end of the side plate is connected to the edge of the bottom plate, and the other end of the side plate extends toward the center of the bottom plate.

5. The wireless charging system for automobiles as described in claim 4, characterized in that, The side plate is provided with a receiving groove, and the linkage mechanism is housed in the receiving groove.

6. The wireless charging system for automobiles as described in claim 1, characterized in that, The power transmitting component includes a first charging surface, and a sensor is provided on one side of the first charging surface. The vehicle-mounted power receiving device includes a second charging surface. The sensor is used to detect the distance between the first charging surface and the second charging surface. When in the charging state, the first charging surface and the second charging surface are in contact. The sensor feeds back an electrical signal to control the lifting component to stop its upward movement.

7. The wireless charging system for automobiles as described in claim 1, characterized in that, The wireless charging system for automobiles also includes a ground-based power electronic control unit and an on-board power electronic control unit. The ground-based power electronic control unit is located on the ground and is electrically connected to at least one of the ground-based power transmitting devices. The on-board power electronic control unit is located on the vehicle and is electrically connected to the on-board power receiving device.

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