Unmanned charging vehicle with adjustable charging connection assembly

Abstract

The invention relates to an unmanned charging vehicle with an adjustable charging connection assembly, and relates to the technical field of electric vehicle charging, the unmanned charging vehicle comprises a charging vehicle body and a charging arm support installed at the top of the charging vehicle body, an installation box is arranged at the end of the charging arm support, and the charging connection assembly connected with a charging jack of a vehicle to be charged is arranged in the installation box; the charging connection assembly comprises a plug conversion unit used for placing various types of plugs and a plugging unit used for pushing the plugs on the plug conversion unit into a charging jack of a vehicle to be charged. The plug conversion unit comprises a frame body, and a driving member and a driven member respectively located at the upper and lower ends of the frame body. A transmission member is wound between the driving member and the driven member. The unmanned charging vehicle is provided with the adjustable charging connection assembly, can adapt to different types of charging jacks through the arrangement of the plug conversion unit, and greatly improves the precision in the automatic connection process through the arrangement of the plugging unit and the positioning unit.

Description

Technical Field

[0001] The present invention belongs to the technical field of electric vehicle charging, and in particular relates to an unmanned charging vehicle with an adjustable charging connection component. Background Art

[0002] Unmanned charging vehicles are gradually becoming an innovative solution to the problem of electric vehicle charging. They are suitable for a variety of scenarios, such as parks, parking garages, parking lots, shopping malls and other areas. With just one click on the mobile phone, they can autonomously drive to the vehicle to be charged for charging, providing great convenience for managers and car owners.

[0003] However, the existing unmanned charging vehicles have a low degree of automation, and the charging socket needs to be manually moved to the charging position of the vehicle to be charged. Since the charging cable is relatively bulky, it is not friendly to some people with less strength. When the distance between vehicles is small, manual operation is also easy to touch other vehicles, causing unnecessary losses. The use of a retractable charging arm to move the charging plug to the charging position of the vehicle to be charged can save a certain amount of effort. However, since the charging interface of electric vehicles has not yet been completely unified, the charging connection components of the unmanned charging vehicle may not be perfectly matched with all vehicles. The position and direction of the charging interface also vary on different models. Some vehicles have charging interfaces at the front, some at the rear, and some on the side of the body. The existing charging arm has limited movement flexibility and cannot adapt well to all situations. The accuracy of the automatic connection process is not high enough. In the process of inserting the charging plug into the interface, due to factors such as mechanical movement errors and slight shaking of the vehicle, the plug and the interface may not be accurately connected.

[0004] To this end, we provide an unmanned charging vehicle with an adjustable charging connection assembly to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide an unmanned charging vehicle with an adjustable charging connection assembly in response to the problems of the background technology.

[0006] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0007] A driverless charging vehicle with an adjustable charging connection assembly comprises a charging vehicle body and a charging arm mounted on the top of the charging vehicle body, an installation box is provided at the end of the charging arm, a charging connection assembly connected to the charging socket of a vehicle to be charged is provided inside the installation box, the charging connection assembly comprises a plug conversion unit for placing multiple types of plugs and a plug-in unit for pushing the plug on the plug conversion unit into the charging socket; the plug conversion unit comprises a frame body and an active part and a driven part respectively located at the upper and lower ends of the frame body, a transmission part is wound between the active part and the driven part, a plurality of first magnetic parts distributed at equal intervals are fixedly provided on the transmission part, and a plug body is magnetically attracted inside the first magnetic part.

[0008] The charging connection assembly also includes a positioning unit inserted into the charging slot of the vehicle to be charged for adjusting the orientation of the charging connection assembly, the charging socket is located in the charging slot, and the plug-in unit and the positioning unit are both located at the bottom end of the plug conversion unit.

[0009] As a further optimization scheme of the present invention, the charging arm comprises a first electric telescopic rod vertically embedded and fixed in the body of the charging vehicle and a folding frame fixed to the top of the first electric telescopic rod; a second electric telescopic rod is fixed at the end of the folding frame, a walking device is provided at the bottom end of the second electric telescopic rod, and a first motor for driving the walking device to rotate is provided on the side of the walking device.

[0010] As a further optimization solution of the present invention, the installation box is installed on the second electric telescopic rod, and a limiting guide wheel for moving along the surface of the vehicle to be charged is provided on the side of the installation box.

[0011] As a further optimization solution of the present invention, a second motor for driving the active component to rotate is provided on the side of the active component, and a second magnetic component that magnetically cooperates with the first magnetic component is provided on the outer end of the plug body.

[0012] As a further optimization solution of the present invention, rotating shafts rotatably connected to the installation box are fixedly provided on both sides of the top of the frame.

[0013] As a further optimization scheme of the present invention, the plug-in unit includes a connector and a first cylinder for pushing the connector to move; a fourth magnetic part is sleeved on one end of the connector close to the plug body, and a third magnetic part that magnetically cooperates with the fourth magnetic part is sleeved on the inner end of the plug body; a charging cable connected to the body of the charging vehicle is provided on the top of the connector, and the charging cable is attached to the charging arm through a wire clamp; an XY fine-tuning platform for driving fine-tuning its position is sleeved on the outside of the first cylinder, and the XY fine-tuning platform is fixed to the frame through a support plate.

[0014] As a further optimization scheme of the present invention, the positioning unit includes a fixed plate fixed on the frame and a movable plate located on the side of the fixed plate; a second cylinder for driving the movable plate to move is provided on the other side of the fixed plate, four third cylinders evenly distributed along the circumference are fixed on the side of the movable plate, a positioning rod is fixed on the movable end of the third cylinder, and an annular tube for driving the four third cylinders to move is also fixed on the side of the movable plate, and the annular tube is connected to the air supply unit located in the installation box.

[0015] As a further optimization scheme of the present invention, a heat dissipation fan and an air inlet are respectively provided on the side of the movable plate close to the fixed plate, the inlet of the heat dissipation fan is fixedly provided with an air outlet pipe that passes through the movable plate, and a filter is provided at the air inlet; a temperature sensor and a camera are respectively provided on the side of the movable plate away from the fixed plate.

[0016] As a further optimization scheme of the present invention, the charging connection assembly also includes a protective cover unit arranged on the outside of the positioning unit; the protective cover unit includes a plurality of elastic telescopic rods evenly distributed along the circumference fixed on the movable plate, and an airbag ring body is commonly provided on the outer sides of the plurality of elastic telescopic rods.

[0017] The beneficial effects of the present invention are:

[0018] 1. The present invention provides a plug conversion unit so that the charging connection assembly can accommodate various types of plugs and can automatically convert the corresponding plug body based on the vehicle to be charged, so that it can adapt to different types of charging sockets and can perfectly match most vehicles.

[0019] 2. The present invention can automatically connect the plug body with the charging socket by providing a plug-in unit and a positioning unit, and the positioning function of the positioning unit greatly improves the accuracy of the automatic connection process, thereby avoiding the situation where the plug body and the charging socket are not accurately connected, resulting in damage to the charging device or failure to charge normally.

[0020] 3. The present invention provides a positioning unit and a protective cover unit so that the unmanned charging vehicle can cope with charging requirements under adverse weather conditions. The airbag ring is tightly fitted with the surface of the vehicle to be charged to prevent rainwater, dust, etc. from entering the charging slot. The protective cover unit also plays a protective role to avoid accidental collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a three-dimensional schematic diagram of the internal structure of the installation box of the present invention;

[0023] Figure 3 It is a side view of the internal structure of the installation box of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the plug conversion unit of the present invention;

[0025] Figure 5 It is a schematic diagram of the connection structure between the plug conversion unit and the installation box of the present invention;

[0026] Figure 6 It is a schematic diagram of the connection structure between the plug unit and the plug body of the present invention;

[0027] Figure 7 The structure of the positioning unit of the present invention is shown in FIG. Figure 1 ;

[0028] Figure 8 The structure of the positioning unit of the present invention is shown in FIG. Figure 2 ;

[0029] Fig. 9 It is a schematic diagram of the protective cover unit structure of the present invention.

[0030] In the figure:

[0031] 1. Charging vehicle body; 2. Charging arm; 201. First electric telescopic rod; 202. Folding frame; 203. Second electric telescopic rod; 204. Walking device; 205. First motor; 3. Installation box; 301. Limiting guide wheel; 4. Plug conversion unit; 401. Frame; 402. Active part; 403. Driven part; 404. Transmission part; 405. Second motor; 406. Rotating shaft; 407. First magnetic part; 408. Plug body; 408a. Second magnetic part; 408b. Third magnetic part; 5. Plug-in unit; 501 , connector; 502, fourth magnetic part; 503, charging line; 504, first cylinder; 505, XY fine-tuning platform; 6, positioning unit; 601, fixed plate; 602, movable plate; 602a, cooling fan; 602b, air outlet; 602c, air inlet; 602d, temperature sensor; 602e, camera; 603, second cylinder; 604, third cylinder; 605, positioning rod; 606, annular tube; 7, protective cover unit; 701, elastic telescopic rod; 702, airbag ring; 8, charging jack; 9, charging slot. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0033] Embodiment 1

[0034] In order to solve the problem that the existing unmanned charging vehicles have a low degree of automation, the charging socket needs to be manually moved to the charging position of the vehicle to be charged, which is not friendly to some people with less strength, and manual operation is also easy to touch other vehicles. Figure 1-Figure 3 The present invention provides an unmanned charging vehicle with an adjustable charging connection assembly, comprising a charging vehicle body 1 and a charging arm 2 mounted on the top of the charging vehicle body 1, an installation box 3 is provided at the end of the charging arm 2, and a charging connection assembly connected to a charging socket 8 of a vehicle to be charged is provided inside the installation box 3, and the charging connection assembly comprises a plug conversion unit 4 for placing multiple types of plugs and a plug-in unit 5 for pushing the plug on the plug conversion unit 4 into the charging socket 8. The installation box 3 can be automatically moved to the charging socket 8 by the charging arm 2 to avoid artificial pulling of the line, and the automatic charging connection is realized by the cooperation of the plug conversion unit 4 and the plug-in unit 5.

[0035] like Figure 1 As shown, the charging arm 2 includes a first electric telescopic rod 201 vertically embedded and fixed in the charging vehicle body 1 and a folding frame 202 fixed at the top of the first electric telescopic rod 201; a second electric telescopic rod 203 is fixed at the end of the folding frame 202, a walking device 204 is provided at the bottom of the second electric telescopic rod 203, and a first motor 205 for driving the walking device 204 to rotate is provided on the side of the walking device 204; wherein the walking device 204 is any mobile device driven by power in the prior art, including but not limited to wheeled, crawler and walking mobile devices. The installation box 3 is installed on the second electric telescopic rod 203, and a limiting guide wheel 301 for moving along the surface of the vehicle to be charged is provided on the side of the installation box 3. The first motor 205 drives the walking device 204 to rotate, and the walking device 204 drives the folding frame 202 to unfold. The walking device 204 can move along the surface of the vehicle to be charged. Its specific moving path and obstacle avoidance functions are realized based on existing sensor technology or algorithm technology. The folding frame 202 is higher than the vehicle to be charged to avoid collision with the vehicle. The walking device 204 can move to the front, rear or side of the vehicle, so as to adapt to vehicles to be charged with charging sockets 8 in different positions, and has high movement flexibility.

[0036] like Figure 4As shown, the plug conversion unit 4 includes a frame 401 and an active member 402 and a driven member 403 respectively located at the upper and lower ends of the frame 401, a second motor 405 for driving the active member 402 to rotate is provided on the side of the active member 402, a transmission member 404 is wound between the active member 402 and the driven member 403, wherein the transmission member 404 includes but is not limited to chains, chain plates, belts, steel belts, etc., the active member 402 and the driven member 403 match the transmission member 404 and are configured as sprockets, chain rollers, gears, etc., a plurality of first magnetic members 407 distributed at equal intervals are fixedly provided on the transmission member 404, a plug body 408 is magnetically attracted to the first magnetic member 407, and a second magnetic member 408a magnetically matched with the first magnetic member 407 is sleeved on the outer end of the plug body 408; rotating shafts 406 rotatably connected to the installation box 3 are fixedly provided on both sides of the top of the frame 401, and corresponding bearing seats are provided in the installation box 3. The camera 602e can be used to identify the type of specific charging socket 8, and then the second motor 405 drives the active part 402 to rotate, the active part 402 drives the transmission part 404 to rotate, and the transmission part 404 drives the first magnetic part 407 to move, so as to move the required plug body 408 to the front of the plug-in unit 5; the setting of the plug conversion unit 4 enables the charging connection component to hold a variety of types of plugs, including five types of charging plugs of national standard GB / T 20234.1-2015, J1772 Type-1, Mennekes Type-2, CCS standard and CHAdeMO, and can automatically convert the corresponding plug body 408 based on the vehicle to be charged, so that it can adapt to different types of charging sockets 8 and can perfectly match most vehicles.

[0037] like Figure 6As shown, the plug-in unit 5 includes a connector 501 and a first cylinder 504 for pushing the connector 501 to move; a fourth magnetic member 502 is sleeved on one end of the connector 501 close to the plug body 408, and a third magnetic member 408b that magnetically cooperates with the fourth magnetic member 502 is sleeved on the inner end of the plug body 408; a charging line 503 connected to the body 1 of the charging vehicle is provided on the top of the connector 501, and the charging line 503 is attached to the charging arm 2 through a wire clamp; an XY fine-tuning platform 505 for driving its position fine-tuning is sleeved on the outside of the first cylinder 504, and the XY fine-tuning platform 505 is fixed to the frame 401 through a support plate. During use, the first cylinder 504 drives the connector 501 to move until the fourth magnetic part 502 and the third magnetic part 408b are adsorbed. As the first cylinder 504 continues to push, the second magnetic part 408a separates from the first magnetic part 407, and then the specific position of the charging socket 8 can be identified through the camera 602e, and the placement of the first cylinder 504 is fine-tuned through the XY fine-tuning platform 505, and then the position of the plug body 408 is fine-tuned, and finally the plug body 408 is pushed into the charging socket 8 by the first cylinder 504. After charging is completed, the plug body 408 is driven to leave the charging socket 8 by the first cylinder 504. When the second magnetic part 408a and the first magnetic part 407 are adsorbed, as the first cylinder 504 continues to retract, the fourth magnetic part 502 separates from the third magnetic part 408b.

[0038] Embodiment 2

[0039] On the basis of the first embodiment, in order to improve the accuracy of the automatic connection process of the plug unit 5 and avoid the situation where the plug body 408 and the charging socket 8 are not accurately connected, resulting in damage to the charging device or failure to charge normally, such as Figure 1-Figure 3 As shown, the charging connection assembly also includes a positioning unit 6 inserted into the charging slot 9 of the vehicle to be charged for adjusting the orientation of the charging connection assembly, the charging socket 8 is located in the charging slot 9, and the plug-in unit 5 and the positioning unit 6 are both located at the bottom end of the plug conversion unit 4.

[0040] like Figure 5 , Figure 7-Figure 8As shown, the positioning unit 6 includes a fixed plate 601 fixed on the frame 401 and a movable plate 602 located on the side of the fixed plate 601; a second cylinder 603 for driving the movable plate 602 to move is provided on the other side of the fixed plate 601, and four third cylinders 604 evenly distributed along the circumference are fixedly provided on the side of the movable plate 602, and a positioning rod 605 is fixedly provided on the movable end of the third cylinder 604. An annular tube 606 for driving the four third cylinders 604 to move is also fixedly provided on the side of the movable plate 602, and the annular tube 606 is connected to the air supply unit located in the installation box 3. During positioning, the positioning rod 605 is driven by the second cylinder 603 to extend into the charging slot 9, and then air is supplied to the third cylinder 604 through the annular tube 606 through the air supply unit. The third cylinder 604 drives the positioning rod 605 to move outward and contact the inner wall of the charging slot 9. During the movement, the positioning rod 605 gradually becomes parallel to the inner wall of the charging slot 9. Since the frame 401 is rotatably arranged in the installation box 3 via the rotating shaft 406, the frame 401 can rotate with the movement of the positioning rod 605 to be parallel to the charging slot 9, thereby greatly improving the accuracy of the automatic connection process and avoiding the situation where the plug body 408 and the charging socket 8 are not accurately connected, resulting in damage to the charging device or failure to charge normally.

[0041] In order to improve the heat dissipation performance in the fast charging mode, a heat dissipation fan 602a and an air inlet 602c are respectively provided on the side of the movable plate 602 close to the fixed plate 601. The inlet of the heat dissipation fan 602a is fixedly provided with an air outlet pipe 602b that runs through the movable plate 602, and a filter is provided at the air inlet 602c; a temperature sensor 602d and a camera 602e are respectively provided on the side of the movable plate 602 away from the fixed plate 601. The temperature of the charging place is constantly monitored by the temperature sensor 602d, the internal heat is extracted by the heat dissipation fan 602a, and the external cold air enters the protective cover unit 7 through the air inlet 602c to realize the heat dissipation cycle.

[0042] Embodiment 3

[0043] On the basis of the first and second embodiments, in order to further improve the functionality of the charging connection assembly, the unmanned charging vehicle can cope with the charging requirements under severe weather conditions, such as Figure 1-Figure 3 , Fig. 9As shown, the charging connection assembly also includes a protective cover unit 7 that is covered outside the positioning unit 6; the protective cover unit 7 includes a plurality of elastic telescopic rods 701 that are evenly distributed along the circumference and fixed on the movable plate 602, and an airbag ring body 702 is commonly provided on the outer side of the plurality of elastic telescopic rods 701. The second cylinder 603 drives the movable plate 602 to move, and the movable plate 602 drives the elastic telescopic rods 701 to move until it contacts the surface of the vehicle to be charged, and then inflates the airbag ring body 702 to fit closely with the surface of the vehicle to be charged to prevent rainwater, dust, etc. from entering the charging slot 9. The protective cover unit 7 also plays a protective role to prevent accidental collision.

[0044] The above-mentioned embodiment only expresses one implementation mode of the present invention, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An unmanned charging vehicle with an adjustable charging connection assembly, comprising a charging vehicle body (1) and a charging arm (2) mounted on the top of the charging vehicle body (1), characterized in that: An installation box (3) is provided at the end of the charging arm (2), and a charging connection assembly connected to the charging socket (8) of the vehicle to be charged is provided inside the installation box (3), and the charging connection assembly includes a plug conversion unit (4) for placing multiple types of plugs and a plug-in unit (5) for pushing the plug on the plug conversion unit (4) into the charging socket (8); The plug conversion unit (4) comprises a frame (401) and an active member (402) and a driven member (403) respectively located at the upper and lower ends of the frame (401); a transmission member (404) is wound between the active member (402) and the driven member (403); a plurality of first magnetic members (407) distributed at equal intervals are fixedly provided on the transmission member (404); a plug body (408) is magnetically attracted inside the first magnetic member (407); The charging connection assembly also includes a positioning unit (6) inserted into a charging slot (9) of a vehicle to be charged for adjusting the orientation of the charging connection assembly, the charging socket (8) is located in the charging slot (9), and the plug-in unit (5) and the positioning unit (6) are both located at the bottom end of the plug conversion unit (4).

2. The unmanned charging vehicle with an adjustable charging connection assembly according to claim 1, characterized in that: The charging arm (2) comprises a first electric telescopic rod (201) vertically embedded and fixed in the body (1) of the charging vehicle, and a folding frame (202) fixed on the top of the first electric telescopic rod (201); A second electric telescopic rod (203) is fixedly provided at the end of the folding frame (202), a walking device (204) is provided at the bottom end of the second electric telescopic rod (203), and a first motor (205) for driving the walking device (204) to rotate is provided on the side of the walking device (204).

3. The unmanned charging vehicle with an adjustable charging connection assembly according to claim 2, characterized in that: The installation box (3) is installed on the second electric telescopic rod (203), and a limiting guide wheel (301) for moving along the surface of the vehicle to be charged is provided on the side of the installation box (3).

4. The unmanned charging vehicle with an adjustable charging connection assembly according to claim 1, characterized in that: A second motor (405) for driving the active component (402) to rotate is disposed on the side thereof, and a second magnetic component (408a) for magnetically engaging with the first magnetic component (407) is sleeved on the outer end of the plug body (408).

5. The unmanned charging vehicle with an adjustable charging connection assembly according to claim 1, characterized in that: Rotating shafts (406) rotatably connected to the installation box (3) are fixedly provided on both sides of the top of the frame (401).

6. The unmanned charging vehicle with an adjustable charging connection assembly according to claim 1, characterized in that: The plug-in unit (5) comprises a connector (501) and a first cylinder (504) for pushing the connector (501) to move; A fourth magnetic member (502) is sleeved on one end of the connector (501) close to the plug body (408); a third magnetic member (408b) that is magnetically matched with the fourth magnetic member (502) is sleeved on the inner end of the plug body (408); a charging line (503) connected to the body (1) of the charging vehicle is provided on the top of the connector (501); the charging line (503) is attached to the charging arm (2) via a wire clip; The outer sleeve of the first cylinder (504) is provided with an XY fine-tuning platform (505) for driving the first cylinder (504) to fine-tune its position, and the XY fine-tuning platform (505) is fixed on the frame (401) via a support plate.

7. The unmanned charging vehicle with an adjustable charging connection assembly according to claim 1, characterized in that: The positioning unit (6) comprises a fixed plate (601) fixed on the frame (401) and a movable plate (602) located on the side of the fixed plate (601); A second cylinder (603) for driving the movable plate (602) to move is provided on the other side of the fixed plate (601); four third cylinders (604) evenly distributed along the circumference are fixedly provided on the side of the movable plate (602); a positioning rod (605) is fixedly provided on the movable end of the third cylinder (604); an annular tube (606) for driving the four third cylinders (604) to move is also fixedly provided on the side of the movable plate (602); the annular tube (606) is connected to the air supply unit located in the installation box (3).

8. The unmanned charging vehicle with an adjustable charging connection assembly according to claim 7, characterized in that: A heat dissipation fan (602a) and an air inlet (602c) are respectively provided on one side of the movable plate (602) close to the fixed plate (601); an air outlet pipe (602b) penetrating the movable plate (602) is fixedly provided at the inlet of the heat dissipation fan (602a); and a filter is provided at the air inlet (602c); A temperature sensor (602d) and a camera (602e) are respectively provided on one side of the movable plate (602) away from the fixed plate (601).

9. The unmanned charging vehicle with an adjustable charging connection assembly according to claim 7, characterized in that: The charging connection assembly further comprises a protective cover unit (7) which is arranged outside the positioning unit (6); The protective cover unit (7) comprises a plurality of elastic telescopic rods (701) fixed on a movable plate (602) and evenly distributed along a circumference, and an airbag ring body (702) is commonly provided on the outer sides of the plurality of elastic telescopic rods (701).

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