CN215204453U - Ground electric energy transmitting platform and automobile wireless charging system - Google Patents

Abstract

A wireless charging system of an automobile and a ground electric energy transmitting platform are provided, wherein the ground electric energy transmitting platform comprises a contact element and a deformation component, and the contact element is elastically abutted against a vehicle-mounted electric energy receiving platform; the deformation subassembly includes the base, extensible member and elastic component, the base sets up on ground, the extensible member extends along the first direction, the base is connected to the one end of extensible member, the contact is connected to the other end that carries on the back mutually, the contact has spacing distance with the base, the extensible member is scalable on the first direction, the elastic component cover is established in the extensible member periphery, the contact is supported to the one end elasticity of elastic component, the other end that carries on the back mutually supports and holds base or extensible member, the elastic component can have good support to the contact, and produce elastic deformation when the contact is pressurized, guarantee contact and on-vehicle electric energy receiving platform remain the contact all the time, the elastic deformation direction of elastic component can be restricted to the extensible member, guarantee the stable in structure of contact and can not empty, can cushion the damping simultaneously, guarantee the contact reliable and stable.

Description

Ground electric energy transmitting platform and automobile wireless charging system

Technical Field

The application relates to the technical field of automobile charging, in particular to a ground electric energy transmitting platform and an automobile wireless charging system.

Background

The existing wireless charging system for the automobile generally comprises a transmitting module arranged on the ground and a receiving module arranged on the automobile, wherein when the automobile drives into a charging area, the transmitting module transmits electromagnetic waves to the receiving module, and the receiving module receives the electromagnetic waves and converts the electromagnetic waves into electric energy.

The transmitting module and the receiving module of the current automobile wireless charging system have larger charging intervals, in order to meet the requirements of regulations and standards, functions such as foreign matter detection and living body detection need to be added, the system is large in size and high in cost, and the charging efficiency is lower due to the fact that the charging intervals are larger.

SUMMERY OF THE UTILITY MODEL

The ground electric energy transmitting platform comprises a ground electric energy transmitting platform body, a ground electric energy transmitting platform body and a wireless charging system of an automobile.

In order to achieve the purpose of the application, the application provides the following technical scheme:

in a first aspect, the application provides a ground electric energy launching platform, which comprises a contact element and a deformation assembly, wherein the contact element is used for elastically abutting against a vehicle-mounted electric energy receiving platform; the deformation assembly comprises a base, a telescopic piece and an elastic piece, the base is arranged on the ground, the telescopic piece extends along a first direction, one end of the telescopic piece is connected with the base, the other end of the telescopic piece, which is back to the back, is connected with the contact piece, the contact piece and the base are spaced, the telescopic piece is telescopic in the first direction, the elastic piece is sleeved on the periphery of the telescopic piece, one end of the elastic piece elastically supports against the contact piece, and the other end of the telescopic piece, which is back to the back, supports against the base or the telescopic piece.

In one embodiment, the number of the extensible member and the elastic member is a plurality of, and a plurality of the extensible members are arranged at intervals, and each extensible member is sleeved with one of the elastic members.

In one embodiment, the telescopic part comprises a first telescopic part and a second telescopic part, two ends of the first telescopic part are respectively connected with the base and the contact part, and two ends of the second telescopic part are respectively connected with the base and the contact part in a rotating manner.

In one embodiment, a first hinge is arranged on the base, a second hinge is arranged on the contact element, and two ends of the second telescopic element are respectively and rotatably connected with the first hinge and the second hinge.

In one embodiment, a connecting portion is disposed at an end of the second extensible member, the connecting portion is rotatably connected to the first hinge, and the elastic member elastically abuts against the connecting portion.

In one embodiment, the base is provided with a limiting part, the limiting part is provided with a limiting groove, the elastic part extends into the limiting groove, and the peripheral surface of the elastic part is tightly attached to the inner side wall of the limiting groove.

In one embodiment, the telescopic part comprises a cylinder sleeve and a cylinder rod, the cylinder rod part extends into the cylinder sleeve and stretches relative to the cylinder sleeve, one of the cylinder sleeve and the cylinder rod is connected with the base, the other of the cylinder sleeve and the cylinder rod is connected with the contact element, the elastic element is sleeved on the periphery of the cylinder sleeve and the cylinder rod, and the elastic element is tightly attached to the peripheral surface of the cylinder sleeve.

In one embodiment, the cylinder rod further comprises a limiting structure, and when the cylinder rod extends into the cylinder sleeve for a preset distance, the limiting structure limits the cylinder rod to continue to extend into the cylinder sleeve.

In one embodiment, the cylinder sleeve or the cylinder rod is provided with a plurality of limiting parts arranged at intervals along the first direction, and the locking part is matched and connected with different limiting parts to adjust the relative telescopic length of the cylinder sleeve and the cylinder rod.

In a second aspect, the present application further provides a wireless charging system for an automobile, including a vehicle-mounted electric energy receiving platform and any one of various embodiments of the first aspect, the ground electric energy transmitting platform, the vehicle-mounted electric energy receiving platform is used for being arranged on a chassis of the automobile, and when the automobile is charged, the vehicle-mounted electric energy receiving platform elastically supports against the ground electric energy transmitting platform.

Through setting up extensible member and elastic component, the elastic component cover is established in the extensible member periphery, and the elastic component can have good support to the contact to produce elastic deformation when the contact pressurized, guarantee contact and on-vehicle electric energy receiving platform remain the contact all the time, the elastic deformation direction of elastic component can be restricted to the extensible member, guarantees the stable in structure of contact and can not empty, can cushion the damping simultaneously, guarantees that the contact is reliable and stable.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of a wireless charging system for an automobile;

FIG. 2 is a schematic diagram of an automobile about to be wirelessly charged;

3 a-3 c are schematic diagrams of a car entering a parking space for wireless charging;

4 a-4 d are schematic views illustrating a process of entering a charging state from a driving state of a vehicle;

4 e-4 h are schematic diagrams illustrating a process of adjusting the charging position when the vehicle is in a passing position;

fig. 5 a-5 b are schematic diagrams of a ground power transmitting platform.

Description of reference numerals:

100-parking space, 101-bracket, 102-driving indication arrow mark, 105-ground, 106-wheel alignment pier, 108-road;

200-automobile;

11-ground electric energy launching platform, 111-deformation assembly, 1111-base, 1112-expansion member, 1113-elastic member, 1114-limiting member, 1115-first hinge, 1116-connecting part, 112-contact member, 113-first charging surface, 114-first contact surface, 115-second contact surface, 116-extension plate, 12-ground electric power electronic control unit, 13-vehicle electric energy receiving platform, 131-mounting surface, 132-second charging surface and 14-vehicle electric power electronic control unit.

Detailed Description

The technical solutions in the embodiments of the present application will be described below clearly with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.

Unless defined otherwise, 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 herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Referring to fig. 1 and fig. 2, the present application provides a wireless charging system for a vehicle, which includes a ground power transmitting platform 11 and a vehicle power receiving platform 13. The ground power transmitting platform 11 is disposed on the ground 105, and the ground power transmitting platform 11 is elastically deformable in a vertical direction. The in-vehicle power receiving platform 13 is provided to be disposed on the chassis of the automobile 200. When the automobile 200 is charged, the vehicle-mounted electric energy receiving platform 13 abuts against the ground electric energy transmitting platform 11, and the ground electric energy transmitting platform 11 is in a compressed state.

Specifically, the ground power transmitting platform 11 is disposed on the parking space 100 where the automobile 200 is parked, and protrudes relative to the surface of the parking space 100, and may be disposed at various positions of the parking space 100 as required.

As shown in fig. 2 and fig. 3a, the ground power transmitting platform 11 is disposed at a position close to the front of the parking space 100, correspondingly, the vehicle power receiving platform 13 is disposed at a chassis of the vehicle 200 close to the front of the vehicle, the vehicle 200 is driven forward into the parking space 100, that is, the front of the vehicle enters the parking space 100 first, and the rear of the vehicle enters the parking space 100 last, when the vehicle 200 is stopped stably in the parking space 100, the ground power transmitting platform 11 is just aligned with the vehicle power receiving platform 13.

As shown in fig. 3b, the same as that shown in fig. 3a, except that the vehicle-mounted power receiving platform 13 is disposed at the chassis of the vehicle 200 near the rear of the vehicle, and the vehicle 200 drives into the parking space 100 in a reverse direction, that is, the rear of the vehicle firstly enters the parking space 100, and finally the vehicle body enters the parking space 100 again, similarly, when the vehicle 200 is entirely stably parked in the parking space 100, the ground power transmitting platform 11 is exactly aligned with the vehicle-mounted power receiving platform 13.

As shown in fig. 3c, which is substantially the same as that shown in fig. 3a and 3b, except that parking space 100 is arranged obliquely compared to road 108, whereas parking space 100 of fig. 3a and 3b is arranged vertically to road 108, fig. 3c shows an embodiment in which parking space 100 is inclined at a large angle relative to road 108, and the vehicle head first enters parking space 100. In similar embodiments, parking space 100 may also have various tilt angles with respect to road 108, including the case where parking space 100 is parallel to road 108, the way of parking sideways, and the way of parking forward and backward, both of which may be arranged ground power transmitting platform 11 and vehicle power receiving platform 13 of the present application for wireless charging.

As shown in fig. 2 and fig. 3a to 3c, a driving indication arrow mark 102, a wheel alignment pier 106, etc. may be provided at the parking space 100 to assist the driver to stop the vehicle 200 at a designated position, so that the vehicle-mounted power receiving platform 13 and the ground power transmitting platform 11 are in an aligned state at the designated position.

As fig. 3a to 3c show an embodiment of clearly marking the parking space 100, in other embodiments, for example, in a home garage, in a rural area, or the like, where the parking space 100 is not marked, the ground power transmitting platform 11 and the vehicle power receiving platform 13 of the present application may also be arranged for wireless charging.

Fig. 4a to 4d show the process of the vehicle 200 entering the charging state from the driving state. As shown in fig. 4a, after the automobile 200 drives into the parking space 100, the vehicle-mounted power receiving platform 13 moves along with the automobile 200 and gradually approaches the ground power transmitting platform 11; as shown in fig. 4b, the vehicle-mounted power receiving platform 13 starts to contact with the ground power transmitting platform 11, and the ground power transmitting platform 11 starts to be compressed in the vertical direction under the pressure of the automobile 200; as shown in fig. 4c, the ground power transmitting platform 11 is compressed to a certain extent by the vehicle power receiving platform 13, and then does not contract any more, and maintains the compressed state; as shown in fig. 4d, after the vehicle-mounted electric energy receiving platform 13 and the ground electric energy transmitting platform 11 are aligned, the vehicle 200 stops moving, the vehicle-mounted electric energy receiving platform 13 and the ground electric energy transmitting platform 11 are in close contact, and the ground electric energy transmitting platform 11 is kept in a compressed state, so that the vehicle-mounted electric energy receiving platform 13 and the ground electric energy transmitting platform 11 are kept in abutting contact.

Fig. 4 e-4 h illustrate the process of adjusting the charging position when the vehicle 200 is driving over the parking space. As shown in fig. 4e, after the automobile 200 is over-positioned, the vehicle-mounted electric energy receiving platform 13 moves along with the automobile 200 and gradually approaches the ground electric energy transmitting platform 11, and the vehicle-mounted electric energy receiving platform needs to run in the reverse direction; as shown in fig. 4f, the vehicle-mounted power receiving platform 13 starts to contact with the ground power transmitting platform 11, and the ground power transmitting platform 11 starts to be compressed in the vertical direction under the pressure of the automobile 200; as shown in fig. 4g, the ground power transmitting platform 11 is compressed to a certain extent by the vehicle power receiving platform 13, and then does not contract any more, and maintains the compressed state; as shown in fig. 4h, after the vehicle-mounted electric energy receiving platform 13 and the ground electric energy transmitting platform 11 are aligned, the vehicle 200 stops moving, the vehicle-mounted electric energy receiving platform 13 and the ground electric energy transmitting platform 11 are in close contact, and the ground electric energy transmitting platform 11 is kept in a compressed state, so that the vehicle-mounted electric energy receiving platform 13 and the ground electric energy transmitting platform 11 are kept in abutting contact.

This application is through setting up ground electric energy transmitting platform 11 and on-vehicle electric energy receiving platform 13, set up ground electric energy transmitting platform 11 at ground 105, on-vehicle electric energy receiving platform 13 sets up the chassis at car 200, when car 200 charges, on-vehicle electric energy receiving platform 13 and ground electric energy transmitting platform 11 in close contact with, ground electric energy transmitting platform 11 is in compression state, can keep the state of holding, thereby make no interval between the two, need not carry out foreign matter detection and live body detection, the system is simple, small and compact, and can promote the efficiency of charging.

In the traditional scheme that a transmitting end and a receiving end are arranged at a distance, the charging efficiency can only reach 90% -92% at most, and the ground electric energy transmitting platform 11 and the vehicle-mounted electric energy receiving platform 13 in the application are in close contact, so that the charging efficiency can reach 95% -96% at most, and the charging efficiency is remarkably improved compared with the traditional scheme.

With continued reference to fig. 1 and 2, the wireless charging system for an automobile further includes a ground power electronic control unit 12 and an on-board power electronic control unit 14. The ground power electronic control unit 12 may be disposed on the ground 105 or on the support 101 of the ground 105, the ground power electronic control unit 12 may be electrically connected to the ground power transmitting platform 11 through a wire, the vehicle power electronic control unit 14 is disposed on the automobile 200, and the vehicle power electronic control unit 14 may be electrically connected to the vehicle power receiving platform 13 through a wire. The ground power electronic control unit 12 is configured to control the ground power transmitting platform 11 to transmit electromagnetic waves to form a magnetic field, and the vehicle power electronic control unit 14 is configured to control the vehicle power receiving platform 13 to receive electromagnetic waves, so that the vehicle power receiving platform 13 is magnetized in the magnetic field of the ground power transmitting platform 11, and then an induced current is generated according to electromagnetic induction, and the induced current can flow to the storage battery to perform charging.

The specific structures and principles of the ground power electronic control unit 12 and the vehicle-mounted power electronic control unit 14 are not limited too much, and components such as circuits in the two control units are not limited specifically, and can be set by referring to any existing technical scheme.

Referring to fig. 4a to 4d, the ground power launching platform 11 includes a contact member 112 and a deformation component 111, wherein the contact member 112 is disposed on a side of the deformation component 111 away from the ground 105. The contact 112 includes a first contact surface 114 and a first charging surface 113 that are connected smoothly, the first contact surface 114 is provided on one side of the first charging surface 113 in the horizontal direction, and the first contact surface 114 extends from the first charging surface 113 in the direction of the ground 105.

Referring to fig. 4a and 4b, when the car 200 needs to be charged, the car 200 moves from the outside of the parking space 100 to the inside of the parking space 100, and the on-board power receiving platform 13 abuts against the first contact surface 114. Referring to fig. 4b and 4c, as the automobile 200 moves, under the pressure of the automobile 200, the vehicle-mounted power receiving platform 13 gradually presses the contact 112 of the ground power transmitting platform 11, so that the contact 112 of the ground power transmitting platform 11 transmits the pressure to the deformation component 111, and the deformation component 111 is compressed, so that the contact 112 moves towards the ground 105. Referring to fig. 4c and 4d, until the vehicle-mounted power receiving platform 13 contacts the first charging surface 113, the vehicle 200 stops moving for charging.

Specifically, referring to fig. 4a to 4d and fig. 5a and 5b, the first charging surface 113 is substantially parallel to the ground 105, it can be understood that the first charging surface 113 is substantially horizontal, the first charging surface 113 is substantially located in the middle of the contact 112, and the first contact surface 114 is substantially located at the edge of the contact 112. When the vehicle 200 enters the vehicle space 100 from outside the vehicle space 100, the first contact surface 114 is located on the side of the first charging surface 113 facing the vehicle 200. First contact surface 114 has one end connected to first charging surface 113 and the other end extending toward ground surface 105. The first charging surface 113 is substantially a plane, a main body portion of the first contact surface 114 may be a plane or an arc, and an edge connected to the first charging surface 113 may be rounded so as to smoothly transition with the first charging surface 113, so that the vehicle-mounted power receiving platform 13 can smoothly slide on the first contact surface 114 and smoothly slide on the first charging surface 113.

Optionally, referring to fig. 4a to 4d and fig. 5a and 5b, an extension plate 116 may be disposed on the first contact surface 114, the extension plate 116 is substantially flush with the first contact surface 114, one end of the extension plate 116 is connected to the first contact surface 114, and the other end is suspended and extends toward the ground 105. The extension plate 116 is disposed to extend the area of the first contact surface 114, so that the automobile 200 with a lower chassis can first contact the extension plate 116 and gradually slide to the first contact surface 114 and the first charging surface 113 when moving. This arrangement can be adapted to charging various types of automobiles 200, and can also make the area of the first contact surface 114 small, and the extension plate 116 can expand the area of the first contact surface 114, so as to reduce the size of the ground power transmitting platform 11.

Referring to fig. 4e to 4h and fig. 5a and 5b, the contact 112 further includes a second contact surface 115, the second contact surface 115 is disposed on a side of the first charging surface 113 opposite to the first contact surface 114, the second contact surface 115 is connected to the first charging surface 113 in a smooth manner, and the second contact surface 115 extends from the first charging surface 113 to the direction of the ground 105. Referring to fig. 4e and fig. 4f, when the vehicle 200 enters the parking space 100 from outside the parking space 100 and moves over the parking space to cause the vehicle-mounted power receiving platform 13 to exceed the first charging surface 113, the vehicle 200 stops and moves in the opposite direction, and the vehicle-mounted power receiving platform 13 abuts against the second contact surface 115. Referring to fig. 4f and 4g, as the automobile 200 moves, under the pressure of the automobile 200, the vehicle-mounted power receiving platform 13 gradually presses the contact 112 of the ground power transmitting platform 11, so that the contact 112 of the ground power transmitting platform 11 transmits the pressure to the deformation component 111, and the deformation component 111 is compressed, so that the contact 112 moves towards the ground 105. Referring to fig. 4g and 4h, until the vehicle-mounted power receiving platform 13 contacts the first charging surface 113, the vehicle 200 stops moving for charging.

Specifically, referring to fig. 4a to 4d, and fig. 5a and 5b, the second contact surface 115 is substantially located at the edge of the contact 112. The second contact surface 115 has one end connected to the first charging surface 113 and the other end extending toward the ground 105. The main body of the second contact surface 115 may be a plane or an arc surface, and the edge contacting with the first charging surface 113 may be rounded so as to be smoothly transited to the first charging surface 113, so that the vehicle-mounted power receiving platform 13 can smoothly slide on the second contact surface 115 and smoothly slide on the first charging surface 113.

Referring to fig. 4a to 4h, the vehicle-mounted power receiving platform 13 includes a mounting surface 131 and a second charging surface 132 opposite to each other, the mounting surface 131 is used for connecting with the vehicle 200, and the second charging surface 132 is in contact with the first charging surface 113 for charging.

Specifically, the second charging surface 132 corresponding to the first charging surface 113 may also be substantially planar and substantially parallel to the ground 105, which may be understood as the second charging surface 132 being a horizontal surface. The mounting surface 131 may be substantially parallel to the second charging surface 132, or may be non-parallel, and may be adaptively arranged according to the structure of the chassis of the automobile 200.

For a ground power transmission platform, the present application also provides the following embodiments.

Referring to fig. 5a and 5b, a ground power transmitting platform 11 includes a contact member 112 and a deformation component 111, wherein the contact member 112 is elastically abutted against a vehicle-mounted power receiving platform 13. For the contact 112 and the vehicle-mounted power receiving platform 13, reference is made to the foregoing description, and details are not repeated here.

Deformation assembly 111 includes base 1111, telescoping member 1112, and resilient member 1113.

The base 1111 is installed on the ground, and the base 1111 has a substantially plate shape and an outer circumferential profile corresponding to the contact 112. Base 1111 serves as a support base for the telescoping member 1112, spring member 1113, and contact member 112.

Telescoping member 1112 extends in a first direction, which may be substantially vertical or may be inclined relative to vertical. The extension 1112 is connected to the base 1111 at one end and to the contact 112 at an opposite end, the contact 112 being spaced from the base 1111, the extension 1112 being extendable and retractable in a first direction. Alternatively, the extension 1112 may be a pneumatic cylinder, hydraulic cylinder, or the like. The elastic member 1112 is used to guide the deformation direction of the elastic member 1113, and ensure that the elastic member 1113 is elastically deformed in a direction substantially equal to the first direction, thereby preventing the contact 112 from falling down to the surroundings when the contact is pressed or the pressure is released. The telescoping member 1112 may also provide some support for the contact member 112. In addition, the expansion piece 1112 also has a buffer and vibration damping function, and when the contact piece 112 is subjected to sudden pressure impact, the expansion piece 1112 can buffer the pressure, so that the stability and reliability of the contact piece 112 are ensured.

The elastic member 1113 is disposed around the periphery of the elastic member 1112, one end of the elastic member 1113 elastically abuts against the contact 112, and the other end opposite to the contact abuts against the base 1111 or the elastic member 1112. Optionally, the resilient member 1113 is a spring. The elastic member 1113 is configured to support the contact member 112 and to be elastically deformed when the contact member 112 is pressed, thereby ensuring constant contact between the contact member 112 and the vehicle-mounted power receiving platform 13.

Through setting up extensible member 1112 and elastic component 1113, elastic component 1113 cover is established in extensible member 1112 periphery, elastic component 1113 can have good support to contact piece 112, and produce elastic deformation when contact piece 112 is pressurized, guarantee contact piece 112 and on-vehicle electric energy receiving platform 13 keep in contact all the time, extensible member 1112 can restrict elastic component 1113's elastic deformation direction, guarantee contact piece 112 stable in structure and can not empty, can carry out buffering damping simultaneously, guarantee contact piece 112 reliable and stable.

Wherein, the base 1111, the telescopic member 1112 and the elastic member 1113, and the contact member 112, the telescopic member 1112 and the elastic member 1113 can be detachably connected to each other, so that the transportation and installation are convenient.

Optionally, referring to fig. 5a and 5b, the number of the telescopic elements 1112 and the elastic elements 1113 is plural, the plurality of telescopic elements 1112 are arranged at intervals, and each telescopic element 1112 is sleeved with one elastic element 1113. The plurality of telescopic members 1112 may be uniformly arranged with the center of gravity of the contact member 112 as the center, so that each elastic member 1113 sleeved on the outer circumference of the telescopic member 1112 may apply a substantially uniform supporting force, so that the structure of the contact member 112 is stable.

In one embodiment, referring to fig. 5a, the number of the telescopic elements 1112 and the elastic elements 1113 can be 4, and two ends of the telescopic element 1112 are respectively fixed to the base 1111 and the contact element 112.

In one embodiment, referring to fig. 5b, the telescopic member 1112 includes a first telescopic member 1112 and a second telescopic member 1112, two ends of the first telescopic member 1112 are respectively connected to the base 1111 and the contact member 112, and two ends of the second telescopic member 1112 are respectively rotatably connected to the base 1111 and the contact member 112. The number of the first and second telescoping members 1112, 1112 can be 2 or other, and fig. 5b shows that the number of the first telescoping member 1112 is 2 and the number of the second telescoping member 1112 is 2. The second telescopic element 1112 is rotatably connected with the base 1111 and the contact element 112, so that a part of the contact element 112 can generate small rotation, and can be better contacted and abutted with the vehicle-mounted electric energy receiving platform 13. Optionally, both ends of the first extensible member 1112 are fixedly connected, rotatably connected, one end of the first extensible member is fixedly connected, and the other end of the first extensible member 1112 is rotatably connected to the base 1111 and the contact member 112, respectively. Alternatively, the second extensible member 1112 is provided on a side closer to the direction in which the vehicle moves from the driving state to the charging state than the first extensible member 1112.

Optionally, referring to fig. 5b, a first hinge 1115 is disposed on the base 1111, a second hinge is disposed on the contact member 112, and two ends of the second extensible member 1112 are respectively rotatably connected to the first hinge 1115 and the second hinge. The first hinge 1115 may be formed by a protrusion formed on the base 1111 and a through hole formed on the contact member 112, and the second extensible member 1112 may be respectively engaged with the two through holes, and may be rotatably connected by inserting a pin into the through hole, for example.

By providing the first hinge 1115 and the second hinge, the second extensible member 1112 can be connected conveniently, and the rotary connection structure is simple.

Similarly, the hinge connection structure described above can also be used when the first telescopic element 1112 is rotatably connected to the base 1111 and/or the contact element 112.

Optionally, referring to fig. 5b, a connection portion 1116 is disposed at an end of the second expansion element 1112, the connection portion 1116 is rotatably connected to the first hinge 1115, and the elastic element 1113 elastically abuts against the connection portion 1116. The connecting portion 1116 may be substantially a circular disc and two protrusions spaced apart from each other on a side surface of the circular disc, the two protrusions having through holes, the two protrusions being capable of cooperating with the first hinge 1115 to align the through holes, so that the through holes can be rotatably connected by inserting pins into the through holes. Meanwhile, the elastic member 1113 abuts against the disk, so that the elastic member 1113 can support the contact member 112 and elastically deform.

Optionally, referring to fig. 5a and 5b, a limiting member 1114 is disposed on the base 1111, the limiting member 1114 has a limiting groove, the elastic member 1113 extends into the limiting groove, and the outer peripheral surface of the elastic member 1113 is tightly attached to the inner sidewall of the limiting groove. Optionally, the limiting member 1114 is a circular truncated cone protruding from the base 1111, and the limiting groove is a circular groove. The outer peripheral surface of the elastic member 1113 is closely attached to the inner sidewall of the limiting groove, so that the elastic member 1113 is limited and structurally stable, thereby facilitating stable support of the contact member 112. Optionally, the contact 112 may also be provided with a limiting member 1114 that is the same as the limiting member 1114 on the base 1111, so that both ends of the elastic member 1113 are limited to avoid generating unnecessary displacement.

Optionally, the telescopic element 1112 includes a cylinder sleeve and a cylinder rod, the cylinder rod partially extends into the cylinder sleeve and is telescopic relative to the cylinder sleeve, one of the cylinder sleeve and the cylinder rod is connected to the base 1111, the other is connected to the contact element 112, the elastic element 1113 is sleeved on the periphery of the cylinder sleeve and the cylinder rod, and the elastic element 1113 is tightly attached to the peripheral surface of the cylinder sleeve.

As mentioned above, the extension 1112 can be a pneumatic or hydraulic cylinder, and the cylinder sleeve is filled with gas or liquid, and when the cylinder rod extends into the cylinder sleeve, the pressure of the gas or liquid acts on the cylinder rod to extend and retract the cylinder rod relative to the cylinder sleeve. The cylinder sleeve and the cylinder rod are rigid parts, can be made of stainless steel and the like, have good rigidity, and can ensure that the telescopic direction (namely the first direction) is unchanged. The inside wall of elastic component 1113 hugs closely with the peripheral surface of cylinder liner for elastic component 1113 is spacing by the cylinder liner, and further elastic component 1113 produces unnecessary displacement and avoids.

Optionally, the ground power emission platform 11 further includes a limiting structure (not shown in the figure), and when the cylinder rod extends into the cylinder sleeve for a preset distance, the limiting structure limits the cylinder rod to continue to extend into the cylinder sleeve. The limiting structure can be arranged on the cylinder sleeve or the cylinder rod, and also can be arranged on the base 1111, and the specific structure is not limited.

Contact 112 can move towards base 1111 direction when contacting with on-vehicle electric energy receiving platform 13 for the jar pole can stretch into in the cylinder liner, and elastic component 1113 can be compressed simultaneously, is in overpressure condition and inefficacy for avoiding elastic component 1113, sets up limit structure, avoids the jar pole to continue to stretch into the cylinder liner, can protect elastic component 1113. The preset distance is determined according to different vehicle types, and optionally, the preset distance is approximately 0-80 mm.

Optionally, the cylinder sleeve or the cylinder rod is provided with a plurality of limiting portions (not shown in the figure) arranged at intervals along the first direction, and the locking member is connected with different limiting portions in a matching manner so as to adjust the relative telescopic length of the cylinder sleeve and the cylinder rod. The spacing distance between two adjacent limiting parts is not limited, and may be, for example, 20 mm.

The limiting part can be a hole or a groove and the like, the locking part can be a pin, a key, a bolt and the like, the locking part can extend into the limiting part to form matching, the cylinder sleeve or the cylinder rod is clamped, and the cylinder rod cannot continue to extend into the cylinder sleeve. The plurality of limiting parts are arranged, so that the relative telescopic length of the cylinder sleeve and the cylinder rod can be adjusted, namely the compression stroke range of the ground electric energy emission platform 11 in the first direction is adjusted, and the device is suitable for different vehicle types.

The ground electric energy transmitting platform and the automobile wireless charging system provided by the application are introduced in detail, specific examples are applied in the description to explain the principle and the embodiment of the application, and the description of the above embodiments is only used for helping to understand the method and the core idea of the application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (10)

1. The ground electric energy transmitting platform is characterized by comprising a contact element and a deformation assembly, wherein the contact element is elastically abutted against a vehicle-mounted electric energy receiving platform;

the deformation assembly comprises a base, a telescopic piece and an elastic piece, the base is arranged on the ground, the telescopic piece extends along a first direction, one end of the telescopic piece is connected with the base, the other end of the telescopic piece, which is back to the back, is connected with the contact piece, the contact piece and the base are spaced, the telescopic piece is telescopic in the first direction, the elastic piece is sleeved on the periphery of the telescopic piece, one end of the elastic piece elastically supports against the contact piece, and the other end of the telescopic piece, which is back to the back, supports against the base or the telescopic piece.

2. The ground electric energy launching platform of claim 1, wherein the number of the telescopic members and the number of the elastic members are multiple, the plurality of telescopic members are arranged at intervals, and each telescopic member is sleeved with one of the elastic members.

3. The ground power launch platform of claim 2 wherein the telescoping member comprises a first telescoping member and a second telescoping member, wherein the first telescoping member is connected at each end to the base and the contact member, and wherein the second telescoping member is rotatably connected at each end to the base and the contact member.

4. The ground electric energy launching platform of claim 3, wherein the base is provided with a first hinge, the contact member is provided with a second hinge, and two ends of the second telescopic member are rotatably connected with the first hinge and the second hinge respectively.

5. The ground electric energy launching platform of claim 4, wherein the end of the second telescopic member is provided with a connecting portion, the connecting portion is rotatably connected with the first hinge, and the elastic member elastically abuts against the connecting portion.

6. The ground electric energy launching platform of claim 1, wherein the base is provided with a limiting member, the limiting member is provided with a limiting groove, the elastic member extends into the limiting groove, and the outer circumferential surface of the elastic member is tightly attached to the inner side wall of the limiting groove.

7. The ground electric energy launching platform as recited in claim 1, wherein the telescopic member comprises a cylinder sleeve and a cylinder rod, the cylinder rod partially extends into the cylinder sleeve and is telescopic relative to the cylinder sleeve, one of the cylinder sleeve and the cylinder rod is connected with the base, the other of the cylinder sleeve and the cylinder rod is connected with the contact member, the elastic member is sleeved on the peripheries of the cylinder sleeve and the cylinder rod, and the elastic member is tightly attached to the peripheral surface of the cylinder sleeve.

8. The ground electric energy launching platform of claim 7, further comprising a limiting structure that limits the cylinder rod from continuing to extend into the cylinder sleeve when the cylinder rod extends into the cylinder sleeve a predetermined distance.

9. The ground electric energy emission platform of claim 7, wherein the cylinder sleeve or the cylinder rod is provided with a plurality of limiting parts arranged at intervals along the first direction, and the locking member is connected with different limiting parts in a matching manner so as to adjust the relative telescopic length of the cylinder sleeve and the cylinder rod.

10. An automobile wireless charging system, characterized by comprising a vehicle-mounted electric energy receiving platform and the ground electric energy transmitting platform as claimed in any one of claims 1 to 9, wherein the vehicle-mounted electric energy receiving platform is arranged on a chassis of an automobile, and when the automobile is charged, the vehicle-mounted electric energy receiving platform elastically supports against the ground electric energy transmitting platform.

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