阅读说明：本技术 一种电动汽车用充电系统 (Charging system for electric automobile ) 是由 王洪军 郭建伟 马爱国 李振 李登科 于 2018-07-27 设计创作，主要内容包括：为克服现有电动汽车充电装置存在定位不准和安全隐患的问题,本发明提供了一种电动汽车用充电系统,包括底座、安装支架、驱动机构、充电盘和第一位置传感装置,所述安装支架可上下滑动地设置于所述底座上,所述第一位置传感装置和所述充电盘设置于所述安装支架上,所述驱动机构用于驱动所述充电盘在所述安装支架上进行同一水平面内的相对位移。本发明提供的电动汽车用充电系统实现了充电盘和受电盘的精准定位,避免安全隐患。(The invention provides a charging system for an electric automobile, which aims to solve the problems of inaccurate positioning and potential safety hazard of the conventional charging device for the electric automobile. The charging system for the electric automobile provided by the invention realizes the accurate positioning of the charging tray and the receiving tray, and avoids potential safety hazards.)

1. A charging system for an electric automobile is characterized by comprising a base, a mounting bracket, a driving mechanism, a charging disc and a first position sensing device, wherein the mounting bracket is arranged on the base in a vertically sliding manner, the first position sensing device and the charging disc are arranged on the mounting bracket, and the driving mechanism is used for driving the charging disc to perform relative displacement on the mounting bracket in the same horizontal plane;

the first position sensing device is used for mutually sensing with a second position sensing device on the electric automobile so as to determine the relative positions of the charging tray and a power receiving tray on the top of the electric automobile;

the mounting bracket and the driving mechanism drive the charging tray to move according to the relative position until the charging tray is in electrical contact with a power receiving tray on the top of the electric automobile.

2. The charging system for electric vehicles according to claim 1, further comprising a driving controller for receiving the relative position information of the second position sensing device and the first position sensing device, and calculating the relative positions of the charging tray and the power receiving tray to control the movement of the mounting bracket and the driving mechanism.

3. The charging system for the electric vehicle according to claim 1, wherein a rack and pinion transmission mechanism is provided between the mounting bracket and the base, and the rack and pinion transmission mechanism is configured to drive the mounting bracket to slide up and down on the base.

4. The charging system for the electric vehicle according to claim 3, wherein a first rack and a second rack that are parallel to each other are fixed on an outer side of the mounting bracket, the first rack and the second rack are slidably disposed on the base, a first motor, a first gear, a second motor and a second gear are disposed in the base, the first motor is connected to the first gear, the first gear is engaged with the first rack, the second motor is connected to the second gear, and the second gear is engaged with the second rack.

5. The charging system for the electric vehicle according to claim 4, wherein a first bar-shaped hole and a second bar-shaped hole are formed in two sides of the base and are parallel to each other, a first hook and a second hook are arranged on one side of the mounting bracket, the first hook slidably penetrates through the first bar-shaped hole, the first rack is located inside the base and connected with the first hook, the second hook slidably penetrates through the second bar-shaped hole, and the second rack is located inside the base and connected with the second hook.

6. The charging system of claim 1, wherein the charging tray is in sliding electrical connection with the drive mechanism, the drive mechanism is in sliding electrical connection with the mounting bracket, and the base is in sliding electrical connection with the mounting bracket.

7. The charging system for an electric vehicle according to claim 6, wherein the charging tray includes a charging positive plate and a charging negative plate, a first positive electrode embedded conductor and a first negative electrode embedded conductor are provided in the base, a second positive electrode embedded conductor and a second negative electrode embedded conductor are provided in the mounting bracket, and a third positive electrode embedded conductor and a third negative electrode embedded conductor are provided in the drive mechanism;

the first positive electrode embedded conductor is in sliding electrical connection with the second positive electrode embedded conductor, the second positive electrode embedded conductor is in sliding electrical connection with the third positive electrode embedded conductor, and the third positive electrode embedded conductor is in sliding electrical connection with the charging positive electrode plate;

the first negative embedded conductor is in sliding electrical connection with the second negative embedded conductor, the second negative embedded conductor is in sliding electrical connection with the third negative embedded conductor, and the third negative embedded conductor is in sliding electrical connection with the charging negative plate.

8. The charging system for the electric automobile according to claim 7, wherein the mounting bracket comprises a mounting plate and a rectangular frame, and the driving mechanism comprises an X-direction slider, a Y-direction slider, a third motor, a first transmission worm, a fourth motor and a second transmission worm;

the two ends of the X-direction sliding block are arranged on the inner walls of the two opposite sides of the rectangular frame in a sliding mode, the first transmission worm penetrates through the X-direction sliding block along the direction perpendicular to the X-direction sliding block, the first transmission worm is in threaded connection with the X-direction sliding block, the third motor is located on the mounting plate, and the first transmission worm is driven to rotate by the third motor;

the Y-direction sliding block is arranged on the X-direction sliding block in a sliding mode, the second transmission worm penetrates through the Y-direction sliding block along the direction parallel to the X-direction sliding block, the second transmission worm is in threaded connection with the Y-direction sliding block, the fourth motor is located on the X-direction sliding block, and the second transmission worm is driven to rotate by the fourth motor.

9. The charging system for an electric vehicle according to claim 8, wherein the first positive electrode embedded conductor and the first negative electrode embedded conductor are parallel to each other, the second positive electrode embedded conductor includes a positive electrode lead-out section and a positive electrode slide rail section, one end of the positive electrode lead-out section is located inside the rectangular frame and connected to the positive electrode slide rail section, the other end of the positive electrode lead-out section extends out of the rectangular frame and is in sliding electrical connection with the first positive electrode embedded conductor, the second negative electrode embedded conductor includes a negative electrode lead-out section and a negative electrode slide rail section, one end of the negative electrode lead-out section is located inside the rectangular frame and is connected to the negative electrode slide rail section, the other end of the negative electrode lead-out section extends out of the rectangular frame and is in sliding electrical connection with the first negative electrode embedded conductor, the positive electrode slide rail section and the negative electrode slide rail section are respectively disposed on inner walls on two opposite sides of the rectangular frame, the third positive electrode embedded conductor and the third negative electrode embedded conductor are located in the X-direction sliding block, the end part of the third positive electrode embedded conductor extends out of one end of the X-direction sliding block and is in sliding electric connection with the positive electrode sliding rail section, and the end part of the third negative electrode embedded conductor extends out of the other end of the X-direction sliding block and is in sliding electric connection with the negative electrode sliding rail section.

10. The charging system for an electric vehicle according to claim 8, wherein a first through groove and a second through groove are formed in a top portion of the Y-direction slider in parallel to each other, the third positive electrode embedded conductor is disposed in the first through groove, and the third negative electrode embedded conductor is disposed in the second through groove.

11. The charging system for an electric vehicle according to claim 8, wherein the first position sensing device includes a first infrared ray receiving device, a second infrared ray receiving device, and a third infrared ray receiving device, the first infrared ray receiving device, the second infrared ray receiving device, and the third infrared ray receiving device are distributed in a triangular shape on the mounting plate, and the first infrared ray receiving device, the second infrared ray receiving device, and the third infrared ray receiving device are configured to receive infrared rays emitted from the second position sensing device on the electric vehicle.

12. The charging system for an electric vehicle according to claim 1, wherein a pressure sensor is provided on the charging tray.

Technical Field

The invention belongs to the technical field of electric vehicle charging, and particularly relates to a charging system for an electric vehicle.

Background

The current electric automobile mode of charging generally adopts the electric power rifle and the electric automobile mouth that charges to peg graft the complex mode, charges and inserts the rifle and charge between the socket through the cable junction, and the cable generally drags subaerial when charging, and people pass through easily and drag the cable when charging and cause the socket damage that charges.

In addition, the cable between ordinary charging electric gun and the socket that charges often drags the time on the ground for a long time and has caused cable insulation epidermis to damage easily and lead to the electric leakage during charging, and is great to staff's safety influence, has the risk of electrocuteeing.

The existing top charging mode is connected by a plurality of cables, the problem of abrasion of the insulating skin of the cable still exists, and the intellectualization of the top charging system is not high at the present stage, so that the defect of inaccurate positioning of the electric automobile is generally existed in the charging process, a driver is required to continuously adjust the position of the automobile, the operation is complex, and the humanization degree is not high. Secondly, because the human factor leads to charging structure and receives the poor contact of electrical structure, leads to charging the hookup location easily and generates heat, has the potential safety hazard.

Disclosure of Invention

The invention provides a charging system for an electric automobile, aiming at the problems of inaccurate positioning and potential safety hazard of the existing charging device for the electric automobile.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the invention provides a charging system for an electric automobile, which comprises a base, a mounting bracket, a driving mechanism, a charging disc and a first position sensing device, wherein the mounting bracket is arranged on the base in a vertically sliding manner, the first position sensing device and the charging disc are arranged on the mounting bracket, and the driving mechanism is used for driving the charging disc to perform relative displacement in the same horizontal plane on the mounting bracket;

the first position sensing device is used for mutually sensing with a second position sensing device on the electric automobile so as to determine the relative positions of the charging tray and a power receiving tray on the top of the electric automobile;

the mounting bracket and the driving mechanism drive the charging tray to move according to the relative position until the charging tray is in electrical contact with a power receiving tray on the top of the electric automobile.

According to the charging system for the electric automobile provided by the invention, when the electric automobile is charged, only the electric automobile provided with the power receiving disc needs to be driven to the bottom of the mounting bracket, the relative positions of the charging disc and the power receiving disc are determined through the induction of the second position sensing device and the first position sensing device, so that the vertical movement of the mounting bracket relative to the base and the movement of the driving mechanism relative to the mounting bracket are controlled, the electric contact between the charging disc and the power receiving disc is realized, and the electric automobile is charged.

Optionally, the charging system further comprises a driving controller, wherein the driving controller is used for receiving the relative position information of the second position sensing device and the first position sensing device, and calculating the relative position of the charging tray and the power receiving tray so as to control the movement of the mounting bracket and the driving mechanism.

Optionally, a rack and pinion transmission mechanism is arranged between the mounting bracket and the base, and the rack and pinion transmission mechanism is used for driving the mounting bracket to slide up and down on the base.

Optionally, a first rack and a second rack which are parallel to each other are fixed on the outer side of the mounting bracket, the first rack and the second rack are slidably disposed on the base, a first motor, a first gear, a second motor and a second gear are disposed in the base, the first motor is connected with the first gear, the first gear is engaged with the first rack, the second motor is connected with the second gear, and the second gear is engaged with the second rack.

Optionally, a first strip-shaped hole and a second strip-shaped hole which are parallel to each other are formed in the two sides of the base, a first clamping hook and a second clamping hook are arranged on one side of the mounting support, the first clamping hook penetrates through the first strip-shaped hole in a sliding mode, the first rack is located inside the base and connected with the first clamping hook, the second clamping hook penetrates through the second strip-shaped hole in a sliding mode, and the second rack is located inside the base and connected with the second clamping hook.

Optionally, the charging tray is in sliding electrical connection with the driving mechanism, the driving mechanism is in sliding electrical connection with the mounting bracket, and the base is in sliding electrical connection with the mounting bracket.

Optionally, the charging tray includes a charging positive plate and a charging negative plate, a first positive electrode embedded conductor and a first negative electrode embedded conductor are disposed in the base, a second positive electrode embedded conductor and a second negative electrode embedded conductor are disposed in the mounting bracket, and a third positive electrode embedded conductor and a third negative electrode embedded conductor are disposed in the driving mechanism;

the first positive electrode embedded conductor is in sliding electrical connection with the second positive electrode embedded conductor, the second positive electrode embedded conductor is in sliding electrical connection with the third positive electrode embedded conductor, and the third positive electrode embedded conductor is in sliding electrical connection with the charging positive electrode plate;

the first negative embedded conductor is in sliding electrical connection with the second negative embedded conductor, the second negative embedded conductor is in sliding electrical connection with the third negative embedded conductor, and the third negative embedded conductor is in sliding electrical connection with the charging negative plate.

Optionally, the mounting bracket includes a mounting plate and a rectangular frame, and the driving mechanism includes an X-direction slider, a Y-direction slider, a third motor, a first transmission worm, a fourth motor, and a second transmission worm;

the two ends of the X-direction sliding block are arranged on the inner walls of the two opposite sides of the rectangular frame in a sliding mode, the first transmission worm penetrates through the X-direction sliding block along the direction perpendicular to the X-direction sliding block, the first transmission worm is in threaded connection with the X-direction sliding block, the third motor is located on the mounting plate, and the first transmission worm is driven to rotate by the third motor;

the Y-direction sliding block is arranged on the X-direction sliding block in a sliding mode, the second transmission worm penetrates through the Y-direction sliding block along the direction parallel to the X-direction sliding block, the second transmission worm is in threaded connection with the Y-direction sliding block, the fourth motor is located on the X-direction sliding block, and the second transmission worm is driven to rotate by the fourth motor.

Optionally, the first positive electrode embedded conductor and the first negative electrode embedded conductor are parallel to each other, the second positive electrode embedded conductor includes a positive electrode leading-out section and a positive electrode slide rail section, one end of the positive electrode leading-out section is located inside the rectangular frame and connected to the positive electrode slide rail section, the other end of the positive electrode leading-out section extends out of the rectangular frame and is in sliding electrical connection with the first positive electrode embedded conductor, the second negative electrode embedded conductor includes a negative electrode leading-out section and a negative electrode slide rail section, one end of the negative electrode leading-out section is located inside the rectangular frame and connected to the negative electrode slide rail section, the other end of the negative electrode leading-out section extends out of the rectangular frame and is in sliding electrical connection with the first negative electrode embedded conductor, the positive electrode slide rail section and the negative electrode slide rail section are respectively disposed on inner walls on two opposite sides of the rectangular frame, and the third positive electrode embedded conductor and the third negative electrode embedded conductor are located in the X-direction slider, the end part of the third positive electrode embedded conductor extends out of one end of the X-direction sliding block and is electrically connected with the positive electrode sliding rail section in a sliding mode, and the end part of the third negative electrode embedded conductor extends out of the other end of the X-direction sliding block and is electrically connected with the negative electrode sliding rail section in a sliding mode.

Optionally, a first through groove and a second through groove which are parallel to each other are formed in the top of the Y-direction slider, the third positive electrode embedded conductor is disposed in the first through groove, and the third negative electrode embedded conductor is disposed in the second through groove.

Optionally, the first position sensing device includes a first infrared receiving device, a second infrared receiving device and a third infrared receiving device, the first infrared receiving device, the second infrared receiving device and the third infrared receiving device are distributed in a triangular shape on the mounting plate, and the first infrared receiving device, the second infrared receiving device and the third infrared receiving device are all used for receiving infrared rays emitted by the second position sensing device on the electric vehicle.

Optionally, a pressure sensor is disposed on the charging tray.

Drawings

Fig. 1 is a schematic structural diagram of a charging system for an electric vehicle according to an embodiment of the present invention;

fig. 2 is a schematic view of an internal structure of a base of the charging system for an electric vehicle according to an embodiment of the present invention;

FIG. 3 is an enlarged schematic view at A in FIG. 2;

FIG. 4 is an enlarged schematic view at B in FIG. 2;

fig. 5 is a schematic bottom view of a mounting bracket of the charging system for an electric vehicle according to an embodiment of the present invention;

fig. 6 is an internal circuit diagram of a mounting bracket of the charging system for an electric vehicle according to an embodiment of the present invention;

fig. 7 is a schematic partial structural view of a mounting bracket of a charging system for an electric vehicle according to an embodiment of the present invention;

FIG. 8 is an enlarged schematic view at C of FIG. 7;

fig. 9 is a schematic structural diagram of a second positive electrode embedded conductor and a second negative electrode embedded conductor of the charging system for an electric vehicle according to the embodiment of the present invention.

FIG. 10 is an enlarged schematic view at D of FIG. 9;

FIG. 11 is an enlarged schematic view at E in FIG. 9;

fig. 12 is a schematic structural diagram of an embedded conductor of a charging system for an electric vehicle according to an embodiment of the present invention;

FIG. 13 is an enlarged schematic view at F of FIG. 12;

FIG. 14 is an enlarged schematic view at G of FIG. 12;

FIG. 15 is an enlarged schematic view at H in FIG. 12;

FIG. 16 is an enlarged schematic view at I of FIG. 12;

fig. 17 is a schematic diagram of a position sensing operation according to an embodiment of the present invention.

The reference numbers in the drawings of the specification are as follows:

1. an electric vehicle; 2. a base; 21. a first positive electrode embedded conductor; 22. a first negative embedded conductor; 23. a first gear; 24. a second gear; 25. a first motor; 26. a second motor; 27. a first bar-shaped hole; 28. a second bar-shaped hole; 3. mounting a bracket; 31. a first hook; 32. a second hook; 33. a second positive electrode embedded conductor; 331. a positive lead-out section; 332. a positive slide rail section; 333. a first clamping end; 334. a second clamping end; 34. a second negative embedded conductor; 341. a negative electrode lead-out section; 342. a negative slide rail section; 343. a third clamping end; 344. a fourth clamping end; 35. mounting a plate; 36. a rectangular frame; 361. a first chute; 362. a first embedded groove; 363. a second embedded groove; 37. a first rack; 38. a second rack; 4. a drive mechanism; 41. an X-direction sliding block; 42. a first drive worm; 43. a third motor; 44. a Y-direction sliding block; 441. a first through groove; 442. a second through groove; 443. a groove; 45. a second drive worm; 46. a fourth motor; 47. a third positive electrode embedded conductor; 471. a fifth clamping end; 472. a sixth clamping end; 48. a third negative embedded conductor; 481. a seventh clamping end; 482. an eighth clamping end; 5. a charging tray; 51. charging the positive plate; 52. charging the negative plate; 6. a first position sensing device; 61. a first infrared receiving device; 62. a second infrared receiving device; 63. a third infrared receiving device; 7. a power receiving panel; 71. a power receiving positive plate; 72. a power receiving negative plate; 8. a second position sensing device.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

Referring to fig. 1 to 6, an embodiment of the present invention provides a charging system for an electric vehicle, including a base 2, a mounting bracket 3, a driving mechanism 4, a charging tray 5, and a first position sensing device 6, where the mounting bracket 3 is slidably disposed on the base 2 in an up-down direction, the first position sensing device 6 and the charging tray 5 are disposed on the mounting bracket 3, and the driving mechanism 4 is configured to drive the charging tray 5 to perform a relative displacement on the mounting bracket 3 in a same horizontal plane.

The first position sensing device 6 is used for mutually sensing with a second position sensing device 8 on the electric automobile 1 to determine the relative positions of the charging tray 5 and a power receiving tray 7 on the top of the electric automobile 1;

the mounting bracket 3 and the driving mechanism 4 drive the charging tray 5 to move according to the relative position until the charging tray 5 is in electrical contact with a power receiving tray 7 on the top of the electric automobile 1.

According to the charging system for the electric automobile provided by the invention, when the electric automobile 1 is charged, the electric automobile 1 provided with the power receiving disc 7 only needs to be driven to the bottom of the mounting bracket 3, the relative positions of the charging tray 5 and the power receiving tray 7 are determined by the sensing of the second position sensing means 8 and the first position sensing means 6, thereby controlling the up-and-down movement of the mounting bracket 3 relative to the base 2 and the movement of the driving mechanism 4 relative to the mounting bracket 3 to realize the electric contact between the charging tray 5 and the power receiving tray 7, further charging the electric automobile 1, the charging system for the electric automobile can effectively realize the accurate positioning of the charging tray 5 and the receiving tray 7, avoid the phenomenon of inaccurate positioning caused by manual control, meanwhile, the system does not need to be additionally connected with a cable, so that the problem of abrasion and electric leakage of an insulating skin of the cable is avoided.

In one embodiment, the charging system further comprises a driving controller (not shown) for receiving the relative position information of the second position sensing device 8 and the first position sensing device 6, and calculating the relative positions of the charging tray 5 and the power receiving tray 7 to control the movement of the mounting bracket 3 and the driving mechanism 4.

The arrangement of the driving controller can realize the calculation of the relative positions of the charging tray 5 and the power receiving tray 7 and the automatic control of the mounting bracket 3 and the driving mechanism 4, thereby effectively avoiding the problems of operation errors and the like caused by manual calculation or manual control.

As shown in fig. 2 to 3, in an embodiment, in order to realize the up-and-down sliding of the mounting bracket 3, a rack and pinion transmission mechanism is disposed between the mounting bracket 3 and the base 2, and the rack and pinion transmission mechanism is used for driving the up-and-down sliding motion of the mounting bracket 3 on the base 2.

Specifically, a first rack 37 and a second rack 38 which are parallel to each other are fixed on the outer side of the mounting bracket 3, the first rack 37 and the second rack 38 are slidably disposed on the base 2, a first motor 25, a first gear 23, a second motor 26 and a second gear 24 are disposed in the base 2, the first motor 25 is connected to the first gear 23, the first gear 23 is engaged with the first rack 37, the second motor 26 is connected to the second gear 24, and the second gear 24 is engaged with the second rack 38.

The base 2 is a vertically arranged plate-shaped structure, the first rack 37 and the second rack 38 both extend in the vertical direction, the first motor 25 and the second motor 26 are fixed inside the base 2, the first motor 25 drives the first gear 23 to rotate, the second motor 26 drives the second gear 24 to rotate, the first gear 23 and the second gear 24 drive the first rack 37 and the second rack 38 to ascend and descend, the tooth spaces of the first rack 37 and the second rack 38 are consistent, and the mounting bracket 3 can be ensured to stably slide up and down on the base 2.

Specifically, a first strip-shaped hole 27 and a second strip-shaped hole 28 which are parallel to each other are formed in two sides of the base 2, a first clamping hook 31 and a second clamping hook 32 are arranged on one side of the mounting support 3, the first clamping hook 31 slidably penetrates through the first strip-shaped hole 27, the first rack 37 is located inside the base 2 and connected with the first clamping hook 31, the second clamping hook 32 slidably penetrates through the second strip-shaped hole 28, the second rack 38 is located inside the base 2 and connected with the second clamping hook 32, the first rack 37 and the second rack 38 are oppositely arranged, and the first gear 23 and the second gear 24 are located between the first rack 37 and the second rack 38.

Through first trip 31 with second trip 32 is in first strip hole 27 with the slip in the second strip hole 28 can restrict installing support 3 is in displacement direction on the base 2, simultaneously first trip 31 with second trip 32 is right the buckle effect that base 2 formed also can avoid installing support 3 breaks away from base 2.

In one embodiment, the charging tray 5 is in sliding electrical connection with the driving mechanism 4, the driving mechanism 4 is in sliding electrical connection with the mounting bracket 3, and the base 2 is in sliding electrical connection with the mounting bracket 3.

The sliding electrical connection mode among the charging tray 5, the driving mechanism 4, the mounting bracket 3 and the base 2 can avoid the use of connecting cables among different components, thereby greatly reducing the mutual interference generated in the displacement process of each component.

As shown in fig. 1 and 5, in an embodiment, the power receiving pad 7 includes a power receiving positive plate 71 and a power receiving negative plate 72, and the charging pad 5 includes a charging positive plate 51 and a charging negative plate 52.

The electricity-receiving positive plate 71 with the rectangular plate-shaped structure of shape looks adaptation is charged positive plate 51, electricity-receiving negative plate 72 with the rectangular plate-shaped structure of shape looks adaptation is charged negative plate 52, through electricity-receiving positive plate 71 with between the charge positive plate 51, electricity-receiving positive plate 71 with the electricity-receiving large tracts of land electric contact between the negative plate 72 can satisfy the transmission of super large current, realizes high-power charging.

As shown in fig. 12 to 15, in one embodiment, a first positive electrode embedded conductor 21 and a first negative electrode embedded conductor 22 are provided in the base 2, a second positive electrode embedded conductor 33 and a second negative electrode embedded conductor 34 are provided in the mounting bracket 3, and a third positive electrode embedded conductor 47 and a third negative electrode embedded conductor 48 are provided in the driving mechanism 4.

The first positive electrode embedded conductor 21 is electrically connected to the second positive electrode embedded conductor 33 in a sliding manner, the second positive electrode embedded conductor 33 is electrically connected to the third positive electrode embedded conductor 47 in a sliding manner, and the third positive electrode embedded conductor 47 is electrically connected to the charging positive electrode plate 51 in a sliding manner.

The first negative embedded conductor 22 is in sliding electrical connection with the second negative embedded conductor 34, the second negative embedded conductor 34 is in sliding electrical connection with the third negative embedded conductor 48, and the third negative embedded conductor 48 is in sliding electrical connection with the charging negative plate 52.

In this embodiment, the current conduction among the base 2, the mounting bracket 3, the driving mechanism 4 and the charging tray 5 is realized through the form of the embedded conductors which are mutually and electrically connected in a sliding manner, the continuous communication of the current is ensured while the base 2, the mounting bracket 3, the driving mechanism 4 and the charging tray 5 are mutually displaced, the existing cable connection dragging form is completely omitted, so that the problems of various potential safety hazards and interference among equipment caused by exposed cables are effectively solved, and meanwhile, the conductors for electric connection are embedded into the charging tray 5, the driving mechanism 4, the mounting bracket 3 and the base 2, so that the safety of the charging system is improved, and electric shock accidents are avoided.

As shown in fig. 5, 12 and 16, in an embodiment, the mounting bracket 3 includes a mounting plate 35 and a rectangular frame 36, and the driving mechanism 4 includes an X-direction slider 41, a Y-direction slider 44, a third motor 43, a first transmission worm 42, a fourth motor 46 and a second transmission worm 45.

X is the stripe structure to slider 41, X to slider 41's both ends slide set up in on the relative both sides inner wall of rectangle frame 36, first transmission worm 42 is along perpendicular X passes to slider 41's direction X is to slider 41, just first transmission worm 42 with X is to slider 41 threaded connection, first transmission worm 42's both ends rotate respectively connect in on the rectangle frame 36, third motor 43 is located on the mounting panel 35, first transmission worm 42 by the drive of third motor 43 rotates, first transmission worm 42 rotates the drive X is followed to slider 41 the extending direction of first transmission worm 42 slides.

Specifically, as shown in fig. 5, 9 and 11, a first sliding groove 361 and a second sliding groove (not shown) are respectively disposed on the inner walls of two opposite sides of the rectangular frame 36, and two ends of the X-direction slider 41 are respectively inserted into the first sliding groove 361 and the second sliding groove.

The Y-direction slider 44 is slidably disposed on the X-direction slider 41, the second driving worm 45 penetrates through the Y-direction slider 44 along a direction parallel to the X-direction slider 41, the second driving worm 45 is in threaded connection with the Y-direction slider 44, the fourth motor 46 is disposed on the X-direction slider 41, the second driving worm 45 is driven by the fourth motor 46 to rotate, and the second driving worm 45 rotates to drive the Y-direction slider 44 to slide along an extending direction of the second driving worm 45.

As shown in fig. 7 to 15, in an embodiment, the first positive electrode embedded conductor 21 and the first negative electrode embedded conductor 22 are embedded in two sides of the inside of the base 2 and are parallel to each other, so as to prevent the first positive electrode embedded conductor 21 and the first negative electrode embedded conductor 22 from being exposed, and reduce the risk of electric shock; the second positive electrode embedded conductor 33 includes a positive electrode lead-out section 331 and a positive electrode slide rail section 332, one end of the positive electrode lead-out section 331 is located inside the rectangular frame 36 and connected to the positive electrode slide rail section 332, the positive electrode lead-out section 331 extends along the inner wall of the rectangular frame 36, the other end of the positive electrode lead-out section 331 extends out of the rectangular frame 36 and is electrically connected to the first positive electrode embedded conductor 21 in a sliding manner, the second negative electrode embedded conductor 34 includes a negative electrode lead-out section 341 and a negative electrode slide rail section 342, one end of the negative electrode lead-out section 341 is located inside the rectangular frame 36 and is connected to the negative electrode slide rail section 342, the negative electrode lead-out section 341 extends along the inner wall of the rectangular frame 36, the other end of the negative electrode lead-out section 341 extends out of the rectangular frame 36 and is electrically connected to the first negative electrode embedded conductor 22 in a sliding manner, it can be understood that the positive electrode lead-out section 331 is led out from, the negative electrode leading-out section 341 is led out by the second hook 32, the positive electrode slide rail section 332 and the negative electrode slide rail section 342 are respectively arranged on the inner walls of two opposite sides of the rectangular frame 36, the third positive electrode embedded conductor 47 and the third negative electrode embedded conductor 48 are positioned in the X-direction slider 41, the end part of the third positive electrode embedded conductor 47 extends out of one end of the X-direction slider 41 and is in sliding electrical connection with the positive electrode slide rail section 332, and the end part of the third negative electrode embedded conductor 48 extends out of the other end of the X-direction slider 41 and is in sliding electrical connection with the negative electrode slide rail section 342.

The second positive electrode embedded conductor 33 and the second negative electrode embedded conductor 34 are arranged in the rectangular frame 36 in a segmented extending manner, so that the second positive electrode embedded conductor 33 and the second negative electrode embedded conductor 34 simultaneously play a role in electrically connecting the conductors and the slide rails, the length of the electrically connected conductors is effectively reduced, and the difficulty in arranging the electrically connected conductors in the rectangular frame 36 is reduced.

As shown in fig. 10 and 11, a first insertion groove 362 for receiving the second positive electrode insertion conductor 33 and a second insertion groove 363 for receiving the second negative electrode insertion conductor 34 are provided on an inner wall of the rectangular frame 36, the first insertion groove 362 and the second insertion groove 363 extend along the inner wall of the rectangular frame 36, and the first insertion groove 362 and the second insertion groove 363 are provided to facilitate the installation of the second positive electrode insertion conductor 33 and the second negative electrode insertion conductor 34 while ensuring that the second positive electrode insertion conductor 33 and the second negative electrode insertion conductor 34 have exposed surfaces for sliding electrical connection.

As shown in fig. 13 and 14, a first clamping end 333 and a second clamping end 334 are formed at an end portion of the second positive electrode embedded conductor 33, which is electrically connected to the first positive electrode embedded conductor 21, and the first clamping end 333 and the second clamping end 334 respectively abut against two side surfaces of the first positive electrode embedded conductor 21; correspondingly, a third clamping end 343 and a fourth clamping end 344 are formed at the end of the second negative embedded conductor 34 for electrically connecting with the first negative embedded conductor 22, and the third clamping end 343 and the fourth clamping end 344 respectively abut against the two side surfaces of the first negative embedded conductor 22 to realize sliding electrical connection.

As shown in fig. 4, 8 and 15, a fifth fastening end 471 and a sixth fastening end 472 are formed at an end of the third positive electrode embedded conductor 47 for electrically connecting with the second positive electrode embedded conductor 33, and the fifth fastening end 471 and the sixth fastening end 472 respectively abut against two side surfaces of the second positive electrode embedded conductor 33; correspondingly, a seventh clamping end 481 and an eighth clamping end 482 are formed at the end of the third negative embedded conductor 48 for electrically connecting with the second negative embedded conductor 34, and the seventh clamping end 481 and the eighth clamping end 482 are respectively abutted against the two side surfaces of the second negative embedded conductor 34 to realize sliding electrical connection.

Second positive pole embedding conductor 33 with when relative displacement takes place for first positive pole embedding conductor 21, through first joint end 333 and second joint end 334 are right first positive pole embedding conductor 21 carries out the centre gripping, are favorable to second positive pole embedding conductor 33 with the steady current output between the first positive pole embedding conductor 21, simultaneously, first joint end 333 with second joint end 334 butt in the both sides surface of first positive pole embedding conductor 21 can guarantee after long-term use wearing and tearing first positive pole embedding conductor 21 has at least a surface and the contact of second positive pole embedding conductor 33, is favorable to keeping the stability of electricity connection. Similarly, the third card end 343, the fourth card end 344, the fifth card end 471, the sixth card end 472, the seventh card end 481, and the eighth card end 482 have similar functions.

It should be noted that, in other embodiments, the sliding electrical connection may also adopt other manners, such as a snap ring structure, a plane contact electrical connection, etc., and all of them should be included in the protection scope of the present invention.

As shown in fig. 5, 6 and 16, a groove 443 is formed at the top of the Y-direction slider 44, and the X-direction slider 41 passes through the groove 443.

A first through groove 441 and a second through groove 442 which are parallel to each other are formed in the top of the Y-direction slider 44, the first through groove 441 and the second through groove 442 are located on both sides of the groove 443, the third positive electrode embedded conductor 47 is disposed in the first through groove 441, the third negative electrode embedded conductor 48 is disposed in the second through groove 442, when the Y-direction slider 44 is displaced, the first through groove 441 and the third positive electrode embedded conductor 47 slide relative to each other, and the second through groove 442 and the third negative electrode embedded conductor 48 slide relative to each other; the charging disk 5 is located at the bottom of the Y-direction slider 44, the positive charging plate 51 is electrically connected to the third positive electrode embedded conductor 47 from the inside of the Y-direction slider 44, and the negative charging plate 52 is electrically connected to the third negative electrode embedded conductor 48 from the inside of the Y-direction slider 44.

As shown in fig. 1 and 3, in an embodiment, the second position sensing device 8 is an infrared emitting device, the infrared emitting device is located on the power receiving panel 7, the first position sensing device 6 includes a first infrared receiving device 61, a second infrared receiving device 62 and a third infrared receiving device 63, the first infrared receiving device 61, the second infrared receiving device 62 and the third infrared receiving device 63 are distributed on the mounting plate 35 in a triangular shape, and the first infrared receiving device 61, the second infrared receiving device 62 and the third infrared receiving device 63 are all used for receiving infrared emitted from the second position sensing device 8 on the electric vehicle 1.

When positioning is performed, the infrared transmitting device periodically transmits the unique ID of the object to be measured to the first infrared receiving device 61, the second infrared receiving device 62 and the third infrared receiving device 63 which are placed on the mounting plate 35, the first infrared receiving device 61, the second infrared receiving device 62 and the third infrared receiving device 63 measure the angle and the distance of the signal source, and the data are transmitted to a background database of the driving controller through a wireless network for operation so as to determine the position of the charging tray 5.

This positioning uses the time of arrival positioning (TOA) technique. The time-of-arrival localization technique requires three or more devices to be arranged in a localization environment and the location coordinates are known, and signals are received by the arranged first infrared receiving device 61, second infrared receiving device 62 and third infrared receiving device 63.

Here, three known positions are taken as examples for calculation and explanation

Assume that the position coordinates of the power receiving panel 7 of the electric vehicle 1 are (x, y).

As shown in fig. 17, the linear distance between the infrared ray emitting device and each of the first infrared ray receiving device 61, the second infrared ray receiving device 62, and the third infrared ray receiving device 63 is di, the time when the signal emitted from the infrared ray emitting device reaches the infrared ray receiving device is Ti, and the speed of infrared ray transmission in the air is close to the speed of light C, so the distance can be obtained by di Ti × C. The equation is as follows

(x1-x)²+(y1-y)²＝d1²

(x2-x)²+(y2-y)²＝d2²

(x3-x)²+(y3-y)²＝d3²

From the geometric principle, it is known that the determined positions s1(x1, y1), s2(x2, y2) and s3(x3, y3) of the first infrared receiving device 61, the second infrared receiving device 62 and the third infrared receiving device 63, and the distances between the infrared receiving device to be measured and each infrared emitting device are known, then a circle is drawn by taking the three infrared emitting devices as the center of the circle, the distance from the infrared receiving device to be measured to each infrared receiving device is taken as the radius, and the position of the power receiving panel 7 of the electric vehicle 1 is at the intersection point of the three circles. The position (x, y) of the power receiving disc 7 of the electric vehicle 1 can be calculated according to the equation set.

In one embodiment, a pressure sensor (not shown) is disposed on the charging tray 5.

The position (x, y) of the power receiving plate of the electric automobile 1 is obtained by using the principle, the driving controller controls the driving mechanism 4 to move the charging disc 5 to the position above the point (x, y), after the charging disc 5 of the device is aligned with the power receiving disc, the driving controller controls the mounting bracket 3 to descend, and due to the fact that the pressure sensor is mounted on the charging disc 5, when the mounting bracket 3 moves downwards and the charging disc 5 is in contact with the power receiving disc 7, the pressure sensor feeds back the pressure value to the driving controller, and the driving controller controls the mounting bracket 3 to stop moving.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.