A flexible connection mechanism for intelligent automobile automatic charging

By introducing a flexible connection mechanism into intelligent vehicle automatic charging piles, and utilizing the combination structure of connecting rods and sliders, the problem of damage to charging guns or charging ports caused by rigid connections of robotic arms is solved, achieving a stable and safe charging connection.

CN224375357UActive Publication Date: 2026-06-19SUZHOU REGRESSION LINE INFORMATION TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU REGRESSION LINE INFORMATION TECH CO LTD
Filing Date
2025-06-27
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The robotic arms of existing smart car automatic charging stations are prone to damage to the charging gun or charging port due to the rigid connection during the charging process caused by the shaking of the car.

Method used

A flexible connection mechanism is adopted, which uses a combination of connecting rod and slider to achieve a flexible connection between the charging gun and the charging port. The spring and slider work together to buffer the shaking and maintain a stable connection.

Benefits of technology

This effectively avoids damage to the charging gun and charging port, improves the stability and safety of the charging connection, and ensures the normal operation of the robotic arm.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of intelligent automobile automatic charging, specifically related to a flexible connecting mechanism for intelligent automobile automatic charging, including mechanical arm, the mechanical arm one side is provided with the charging gun. The utility model discloses a mechanical arm drives the charging gun and connects the charging port, when the shaking occurs, at this moment, each group of sliding blocks of the butt joint plate one side will slide along the corresponding slide bar, and slightly extrude spring one, the connecting rod is slightly rotated to the corresponding direction simultaneously, and in the process of the charging gun plug connection, the fixed link can be attached with the charging port edge, thereby avoiding the situation that the charging gun falls off or the plug connection is not firm, through this structure, the flexible connection between the charging gun and the charging port can be realized, and the normal work of the mechanical arm is not affected, thereby the safety between the charging gun and the charging port is improved, and the fixed link can be attached with the charging port edge through the action of plug connection, thereby improving the overall stability of the charging connection.
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Description

Technical Field

[0001] This utility model relates to the field of automatic charging for intelligent vehicles, and specifically to a flexible connection mechanism for automatic charging of intelligent vehicles. Background Technology

[0002] Intelligent electric vehicle automatic charging piles are electric vehicle charging devices that integrate intelligent and automated technologies. They can significantly improve charging efficiency and user experience. Intelligent charging piles can automatically identify vehicle models, battery types, and remaining power, dynamically adjust charging parameters, and provide the optimal charging solution.

[0003] A search revealed an invention patent with publication number CN106218435B, which discloses an automated car charging station. The station includes a charging host and a charging gun connected by a charging cable. A omnidirectional robotic arm connects the charging gun and the charging host, allowing the charging gun's connector to be adjusted to any angle in three-dimensional space. The connector has a notched circular cross-section with a main camera at its center. The charging station also includes a monochrome aperture on the car charging interface. After the main camera captures the monochrome aperture, the omnidirectional robotic arm continuously adjusts the connector until the aperture is perfectly circular and centered in the main camera's field of view. Then, the robotic arm pushes the connector forward along its axis until it is inserted into the car charging interface. This automated car charging station can automatically locate the car charging interface and automatically insert the charging gun for charging, saving manpower.

[0004] Existing smart car automatic charging stations rely on robotic arms to automatically identify the car's charging port and connect it automatically. Since the robotic arm is a rigid mechanical connection, even slight shaking of the car after the charging gun is connected to the charging port may affect the connection between the port and the charging gun, and in severe cases, may damage the charging gun or the charging port.

[0005] Therefore, it is necessary to invent a flexible connection mechanism for automatic charging of intelligent vehicles to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a flexible connection mechanism for automatic charging of intelligent vehicles. By connecting the connecting rod and the slider, a flexible connection is made between the docking plate and the connecting plate, which avoids damage to the charging gun or charging port due to shaking. This solves the problem in the prior art where the lack of an effective flexible structure when the robotic arm controls the connecting gun easily leads to damage to the charging gun or charging port.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a flexible connection mechanism for automatic charging of intelligent vehicles, including a robotic arm, wherein a charging gun is provided on one side of the robotic arm, and the side of the robotic arm away from the charging gun is connected to a charging pile.

[0008] The flexible connection assembly located on one side of the robotic arm includes a connecting plate installed on one side of the robotic arm, and multiple sets of connecting rods are rotatably connected to one side of the connecting plate in a ring shape.

[0009] The fixing component disposed on one side of the docking plate includes a docking seat, which is installed on the side of the docking plate away from the connecting plate, and the surface of the docking seat has a sliding cavity.

[0010] Preferably, the flexible connection assembly further includes a sliding cavity, which is formed on the surface of each group of connecting rods, and a sliding rod is installed in each group of sliding cavities.

[0011] Preferably, a docking plate is provided on one side of the connecting plate, and multiple sets of sliders are rotatably connected in a ring on one side of the docking plate. The sliders are slidably connected to the corresponding sliding rods. Each set of sliding rods is fitted with a spring, and the two sides of the spring are respectively in contact with the inner wall of the sliding cavity and the slider.

[0012] Preferably, the fixing component further includes a sleeve, which is fitted onto the docking seat and has its outer side fixedly connected to the charging gun. A positioning ring is installed on the inner wall of the sleeve and is slidably connected to the sliding cavity.

[0013] Preferably, a second spring is sleeved inside the second sliding cavity, and the two sides of the second spring are respectively attached to the inner wall of the second sliding cavity and one side of the positioning ring, and the elastic force of the second spring is greater than the sum of the elastic forces of each group of first springs.

[0014] Preferably, multiple sets of through grooves are arranged in a ring on the inner wall of the sleeve. A fixed rod is connected through the through groove, and one end of each fixed rod is rotatably connected to one side of the docking seat. The other end of each fixed rod is located on the side of the charging gun. A sliding cavity is formed on the surface of the fixed rod. A positioning block is installed on the inner wall of the through groove, and the positioning block is slidably connected to the sliding cavity.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] The robotic arm drives the charging gun to connect to the charging port. When shaking occurs, the sliders on one side of the docking plate slide along the corresponding sliding rods and slightly compress the spring. At the same time, the connecting rod rotates slightly in the corresponding direction. During the insertion of the charging gun, the fixing rod can fit against the edge of the charging port, thus preventing the charging gun from falling off or being loosely connected. This structure achieves a flexible connection between the charging gun and the charging port without affecting the normal operation of the robotic arm, thereby improving the safety between the charging gun and the charging port. Furthermore, the insertion action allows the fixing rod to fit against the edge of the charging port, thus improving the overall stability of the charging connection. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the charging gun structure of this utility model;

[0020] Figure 3 This is a cross-sectional structural diagram of the sleeve of this utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure of the connecting plate and the mating plate of this utility model;

[0022] Figure 5 This is a schematic diagram of the connecting rod layout structure of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 001. Robotic arm; 101. Charging gun; 002. Flexible connection assembly; 201. Connecting plate; 202. Connecting rod; 203. Slide cavity one; 204. Slide rod; 205. Docking plate; 206. Slider; 207. Spring one; 003. Fixing assembly; 301. Docking seat; 302. Slide cavity two; 303. Sleeve; 304. Positioning ring; 305. Spring two; 306. Through groove; 307. Fixing rod; 308. Slide cavity two; 309. Positioning block. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model provides, for example Figure 1-5 The flexible connection mechanism for automatic charging of intelligent vehicles shown includes a robotic arm 001, a charging gun 101 on one side of the robotic arm 001, and the side of the robotic arm 001 away from the charging gun 101 is connected to the charging pile.

[0027] The robotic arm 001 can drive the charging gun 101 to connect to the car's charging port.

[0028] The flexible connection component 002 disposed on one side of the robotic arm 001 includes a connecting plate 201 installed on one side of the robotic arm 001, and multiple sets of connecting rods 202 are rotatably connected in a ring on one side of the connecting plate 201.

[0029] The robotic arm 001 can move the connecting plate 201.

[0030] The fixing component 003 located on one side of the docking plate 205 includes a docking seat 301. The docking seat 301 is installed on the side of the docking plate 205 away from the connecting plate 201, and a sliding cavity 302 is formed on the surface of the docking seat 301.

[0031] Furthermore, in the above structure, the flexible connection assembly 002 also includes a sliding cavity 203, which is formed on the surface of each set of connecting rods 202, and a sliding rod 204 is installed in each set of sliding cavities 203.

[0032] Furthermore, in the above structure, a docking plate 205 is provided on one side of the connecting plate 201. Multiple sets of sliders 206 are rotatably connected in a ring on one side of the docking plate 205. The sliders 206 are slidably connected to the corresponding slide rods 204. Each set of slide rods 204 is fitted with a spring 207. The two sides of the spring 207 are respectively attached to the inner wall of the slide cavity 203 and the slider 206.

[0033] Spring 207 can maintain the position between each set of sliding rods 204 and the corresponding sliders 206, thereby keeping the docking plate 205 in a neutral position. When the docking plate 205 shakes, the position of the connecting plate 201 can remain unchanged when the docking plate 205 shakes because of the rotational connection of the slider 206 and its cooperation with the sliding rod 204.

[0034] Furthermore, in the above structure, the fixing component 003 also includes a sleeve 303, which is sleeved on the docking seat 301, and the outer side of the sleeve 303 is fixedly connected to the charging gun 101. A positioning ring 304 is installed on the inner wall of the sleeve 303, and the positioning ring 304 is slidably connected to the sliding cavity 302.

[0035] The sleeve 303 can be limited and slid on the docking seat 301 by the cooperation of the positioning ring 304 and the second sliding cavity 302.

[0036] Furthermore, in the above structure, a second spring 305 is sleeved inside the second sliding cavity 302, and the two sides of the second spring 305 are respectively attached to the inner wall of the second sliding cavity 302 and one side of the positioning ring 304, and the elastic force of the second spring 305 is greater than the sum of the elastic forces of each group of springs 207.

[0037] Spring 305 can maintain the position of sleeve 303. When the robotic arm 001 drives the charging gun 101 to contact the charging port, spring 305 can act as a buffer to avoid affecting the contact and damaging the charging port or charging gun 101. In addition, the high elasticity of spring 305 can ensure that spring 207 is not affected when the docking plate 205 shakes and is squeezed.

[0038] Furthermore, in the above structure, multiple sets of through grooves 306 are arranged in a ring on the inner wall of the sleeve 303. Fixed rods 307 are connected through the through grooves 306. One end of each set of fixed rods 307 is rotatably connected to one side of the docking seat 301, and the other end of each set of fixed rods 307 is located on the side of the charging gun 101. A sliding cavity 308 is formed on the surface of the fixed rod 307. A positioning block 309 is installed on the inner wall of the through groove 306, and the positioning block 309 is slidably connected to the sliding cavity 308.

[0039] By moving the sleeve 303, the positioning block 309 can slide along the sliding cavity 308, thereby allowing the fixing rod 307 to slide in the through groove 306, thus creating an unfolding effect. This allows the fixing rod 307 to fully unfold when the charging gun 101 is connected to the charging port. After the connection is completed, the robotic arm 001 will move slightly backward a short distance. During this process, the spring 305 will ensure that the position of the sleeve 303 is maintained, so that each set of fixing rods 307 can fit against the edge of the car charging port, thereby achieving a fixing effect.

[0040] The working principle of this practical application is as follows:

[0041] Refer to the instruction manual appendix Figure 1-5 The robotic arm 001 moves the charging gun 101 to a position around the car's charging port. The charging gun 101 then inserts into the charging port, causing the sleeve 303 to compress the spring 305, thus unfolding the fixing rod 307. After insertion, the robotic arm 001 moves outward a short distance. The spring 305 then maintains the position of the sleeve 303, closing the fixing rod 307 and ensuring it fits against the edge of the charging port. When the car shakes, the docking seat 301 causes the docking plate 205 to swing, causing the slider 206 on one side to slide along the sliding rod 204. The direction of the swing also causes the connecting rods 202 to rotate accordingly, compressing the spring 207. This structure allows for a flexible connection between the charging gun 101 and the charging port without affecting the normal operation of the robotic arm 001, thus improving the safety between the charging gun 101 and the charging port. Furthermore, the insertion action ensures that the fixing rod 307 fits against the edge of the charging port, improving the overall stability of the charging connection.

[0042] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A flexible connection mechanism for intelligent automobile automatic charging, comprising a mechanical arm (001), characterized in that: A charging gun (101) is provided on one side of the robotic arm (001), and the side of the robotic arm (001) away from the charging gun (101) is connected to the charging pile. The flexible connection assembly (002) disposed on one side of the robotic arm (001) includes a connecting plate (201) installed on one side of the robotic arm (001), and multiple sets of connecting rods (202) are rotatably connected in a ring on one side of the connecting plate (201). The fixing component (003) disposed on one side of the docking plate (205) includes a docking seat (301), which is installed on the side of the docking plate (205) away from the connecting plate (201), and a sliding cavity (302) is provided on the surface of the docking seat (301).

2. The flexible connection mechanism for automatic charging of intelligent vehicles according to claim 1, characterized in that: The flexible connection assembly (002) further includes a sliding cavity (203), which is formed on the surface of each group of connecting rods (202), and each group of sliding cavities (203) is equipped with a sliding rod (204).

3. The flexible connection mechanism for automatic charging of intelligent vehicles according to claim 1, characterized in that: A docking plate (205) is provided on one side of the connecting plate (201). Multiple sets of sliders (206) are rotatably connected in a ring on one side of the docking plate (205). The sliders (206) are slidably connected to the corresponding slide rods (204). Each set of slide rods (204) is fitted with a spring (207). The two sides of the spring (207) are respectively attached to the inner wall of the slide cavity (203) and the slider (206).

4. The flexible connection mechanism for automatic charging of intelligent vehicles according to claim 1, characterized in that: The fixing component (003) also includes a sleeve (303), which is sleeved on the docking seat (301) and the outer side of the sleeve (303) is fixedly connected to the charging gun (101). A positioning ring (304) is installed on the inner wall of the sleeve (303) and the positioning ring (304) is slidably connected to the second sliding cavity (302).

5. A flexible connection mechanism for automatic charging of intelligent vehicles according to claim 4, characterized in that: Spring 2 (305) is sleeved inside the second sliding cavity (302), and the two sides of spring 2 (305) are respectively attached to the inner wall of the second sliding cavity (302) and one side of the positioning ring (304), and the elastic force of spring 2 (305) is greater than the sum of the elastic forces of each group of spring 1 (207).

6. The flexible connection mechanism for automatic charging of intelligent vehicles according to claim 4, characterized in that: Multiple sets of through grooves (306) are arranged in a ring on the inner wall of the sleeve (303). A fixed rod (307) is connected through the through groove (306). One end of each fixed rod (307) is rotatably connected to one side of the docking seat (301), and the other end of each fixed rod (307) is located on the side of the charging gun (101). A sliding cavity three (308) is opened on the surface of the fixed rod (307). A positioning block (309) is installed on the inner wall of the through groove (306), and the positioning block (309) is slidably connected to the sliding cavity three (308).