Disconnecting device for charging plug of electric vehicle

Abstract

The invention relates to the technical field of electric vehicle equipment, and provides an electric vehicle charging plug disconnecting device. The driving main body is arranged on the guide column in a sliding and sleeving manner; the charging interface is fixedly arranged on the base through a fixing rod and is positioned in front of the sliding path of the driving main body; the spring is arranged between the driving main body and the base and provides reset elastic force towards the direction far away from the base for the driving main body; the electric cylinder is arranged at the bottom of the base; the positioning rod is fixedly arranged at the bottom of the driving main body, and an annular groove is formed in the tail end of the positioning rod; the charging plug abuts against the driving body to overcome the elastic force of the spring to slide towards the base, the charging plug is connected with the charging interface in an inserted mode, and meanwhile the tail end of the positioning rod corresponds to the output end of the electric cylinder. The electric cylinder clamps and locks the driving body and releases the positioning rod when the driving body needs to be disconnected, and the driving body slides reversely under the action of the reset elastic force of the spring, so that the charging plug is pushed out of the charging interface.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric vehicle equipment, in particular to an electric vehicle charging plug disconnecting device. BACKGROUND

[0002] With the popularity of electric vehicles, their charging convenience and safety are increasingly concerned. At present, when charging, electric vehicles generally use manual methods to insert or pull out the charging plug from the charging interface of the vehicle body. This operation method relying on human power has many drawbacks: first, when the electric vehicle is fully charged, if the user fails to timely notice and manually pull out the charging plug, the charger will remain connected to the charging interface. This overcharging or long-time idle connection not only wastes electrical energy, but also may cause overheating, aging or even short circuit and fire of the components due to continuous power supply, which poses a significant safety hazard.

[0003] Secondly, for some users with less strength or in the case of the plug being inserted too tightly, it is often very laborious to manually pull out the charging plug, which is not a good experience. Therefore, we propose an electric vehicle charging plug disconnecting device. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides an electric vehicle charging plug disconnecting device, which overcomes the deficiencies of the prior art, is reasonable in design, compact in structure, and solves the problems raised in the background art.

[0005] To achieve the above purpose, the present application is realized by the following technical scheme:

[0006] An electric vehicle charging plug disconnecting device, comprising:

[0007] a housing;

[0008] a base fixedly arranged inside the housing;

[0009] a guide post fixedly arranged on the base and extending along the axial direction of the housing;

[0010] a drive body slidingly sleeved on the guide post;

[0011] a charging interface fixedly arranged on the base through a fixing rod and located in front of the sliding path of the drive body;

[0012] a spring arranged between the drive body and the base to provide a reset elastic force of the drive body towards the direction away from the base;

[0013] an electric cylinder arranged at the bottom of the base;

[0014] a positioning rod fixedly arranged at the bottom of the drive body, with an annular groove arranged at the end thereof;

[0015] Wherein, the charging plug pushes the driving body to slide to the base direction against the spring force, and makes the charging plug and the charging interface plug, and makes the end of the positioning rod correspond to the output end of the electric cylinder; the electric cylinder clamps and locks the driving body, and releases the positioning rod when needed to disconnect, and the driving body reversely slides under the reset spring force of the spring, so that the charging plug is pushed out from the charging interface.

[0016] Preferably, the top of the driving body is connected with a connecting rod, and the end of the connecting rod is connected with a pushing platform; the pushing platform is provided with a groove for accommodating or guiding the charging interface and the charging plug.

[0017] Preferably, the circumferential side of the pushing platform is provided with a plurality of extension rods, each of which is hinged with a limiting rod, and a torsion spring is arranged between the extension rod and the limiting rod to keep the limiting rod in an outward tendency; the limiting rod is provided with an opening for clamping the flange on the charging plug.

[0018] Preferably, a roller is connected to the limiting rod, and the roller is in contact with the inner wall of the shell.

[0019] Preferably, the end of the guide column is fixedly connected with an external ring, and the external ring is fixedly connected with the guide column through a nut.

[0020] Preferably, the bottom of the driving body is connected with a coaxially arranged sleeve, and the spring is sleeved on the sleeve.

[0021] Preferably, the number of the electric cylinders is one pair, and the electric cylinders are oppositely arranged on both sides of the positioning rod; the output end of the electric cylinder is provided with an arc-shaped clamp that is matched with the annular groove at the end of the positioning rod.

[0022] Preferably, the driving body is a circular truncated cone shell with a closed top and an open bottom, and at least three independent foot supports are uniformly distributed around the driving body, and the foot supports are slidingly sleeved on the guide column.

[0023] Preferably, the fixed rod penetrates through the driving body and extends to the direction of the charging interface, and the driving body can slide along the fixed rod.

[0024] Preferably, the shell and the base are fixedly connected to form a single-sided sealed cylindrical structure.

[0025] The application provides a charging plug disconnecting device for an electric vehicle.

[0026] 1. Through the cooperative action of the driving body, the spring and the electric cylinder, the automatic locking and releasing of the charging plug are realized. When charging, the thrust of the plug drives the entire system to compress the spring and complete the connection, and finally the electric cylinder is locked to ensure reliable connection; when power off, the electric cylinder is released, and the reset force of the spring can automatically push the plug out to disconnect, the process is smooth and does not need manual effort to pull out, and the safety hazard is reduced.

[0027] 2. By integrating components such as the outer shell, base, guide column, drive body, and charging interface fixing rod into a cylindrical shell, the device is modularized and miniaturized, making it easy to arrange and install within the limited space inside an electric vehicle. Attached Figure Description

[0028] Figure 1 This is a schematic diagram showing the present invention being removed from an electric vehicle;

[0029] Figure 2 For the present invention Figure 1 A diagram showing the process of removing the outer casing;

[0030] Figure 3 For the present invention Figure 2 A three-dimensional cross-sectional view of the charging plug removed;

[0031] Figure 4 For the present invention Figure 2 A 3D diagram showing the removal of the charging plug and charging port;

[0032] Figure 5 For the present invention Figure 4 An explosion diagram showing the removal of the outer ring and the push platform;

[0033] Figure 6 For the present invention Figure 5 A side view diagram.

[0034] In the diagram: 1. Outer shell; 11. Base; 12. Electric cylinder; 13. Guide column; 2. Drive body; 21. Connecting rod; 22. Outer ring; 23. Pushing platform; 24. Extension rod; 25. Limiting rod; 26. Roller; 27. Positioning rod; 28. Sleeve; 29. ​​Spring; 3. Fixing rod; 31. Charging interface; 4. Charging plug. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, what is described is only a part of this invention, not all of it. All other works obtained by those skilled in the art based on this invention without inventive effort are within the scope of protection of this invention.

[0036] See attached document Figures 1-6An electric vehicle charging plug disconnection device includes a housing 1 installed inside the electric vehicle. A base 11 installed inside the housing 1 is fixedly connected to the end of the housing 1 to form a single-sided cylindrical seal. Several guide posts 13 are fixedly connected to the base 11. The guide posts 13 are arranged parallel to the cylindrical axis and the same external ring 22 is fixedly connected to the parallel end of the guide post 13. The parallel end of the guide post 13 has a gradient structure. The external ring 22 is fixedly installed on the guide post 13 by threaded engagement with the guide post 13 through a nut.

[0037] A drive body 2 is slidably provided between the base 11 and the outer ring 22. The drive body 2 is a frustum-shaped shell with a closed top and an open bottom. At least three independent feet are evenly distributed around the circumference. The feet are sleeved on the guide post 13 so that the drive body 2 can slide along the direction of the guide post 13. A connecting rod 21 is also connected to the top of the drive body 2. The connecting rod 21 is arranged in a cross pattern and extends to the parallel end of the guide post 13. The same push platform 23 is connected to the extended end of the connecting rod 21.

[0038] A groove is provided on the pushing platform 23. The shape of the groove is consistent with the shape of the charging interface 31 and is used to accommodate the charging interface 31. Several fixing rods 3 are also connected to the base 11. The fixing rods 3 extend through the driving body 2 towards the pushing platform 23 and are connected to the same charging interface 31 to firmly fix the charging interface 31. The driving body 2 can slide on the guide post 13 and the fixing rods 3.

[0039] A positioning rod 27 and a sleeve 28 are coaxially connected to the bottom of the drive body 2. The end of the positioning rod 27 is provided with an annular groove. A spring 29 is sleeved on the sleeve 28. The two ends of the spring 29 abut against the base 11 and the drive body 2. A pair of electric cylinders 12 are arranged opposite each other at the bottom of the base 11. The output end of the electric cylinder 12 is provided with an arc-shaped clamp, which is used to cooperate with the annular groove of the positioning rod 27 to form a clamp. The charging plug 4 is also provided with an annular buckle. When charging is required, the annular buckle on the charging plug 4 abuts against the push platform 23 to push the drive body 2 towards the base 11. At this time, the charging plug 4 is inserted into the charging interface 31. The spring 29 retracts until the positioning rod 27 at the bottom of the drive body 2 passes through the base 11 and corresponds to the output end of the electric cylinder 12. The electric cylinder 12 drives the positioning rod 27 to form a clamp. After full charging, the electric cylinder 12 retracts to release the positioning rod 27. Under the force of the spring 29, the drive body 2 is pushed out and the charging plug 4 is disconnected from the charging interface 31.

[0040] A flange is provided around the annular buckle, and multiple extension rods 24 are provided around the push platform 23. Each extension rod 24 is hinged with a limiting rod 25 with a notch, and the extension rod 24 and the limiting rod 25 are also connected and cooperated by a torsion spring to keep the limiting rod 25 extended. The notch of the limiting rod 25 can correspond to the flange of the annular buckle. A roller 26 is also connected to the limiting rod 25, and the roller 26 contacts the inside of the outer shell 1. When not plugged in, the notch of the limiting rod 25 is located on the outside of the outer shell 1. When docked with the charging plug 4, the flange corresponds to the notch of the limiting rod 25. When the charging plug 4 is pushed, the limiting rod 25 will enter the outer shell 1 and clamp the flange of the charging plug 4 to form a fixed cooperation. When disconnected, the push platform 23 will push the charging plug 4 to the outside of the outer shell 1. At this time, the limiting rod 25 will unfold under the action of the torsion spring, and the charging plug 4 will be disengaged from the charging interface 31, completing the disconnection operation.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0042] The above description is only used to illustrate the technical solutions of the present invention, and is not intended to limit them. Although the present invention has been described in detail with reference to the foregoing, those skilled in the art should understand that modifications can still be made to the foregoing technical solutions, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A device for disconnecting an electric vehicle charging plug, characterized in that, The utility model relates to a kind of charging interface and charging plug automatic disconnecting device, including: Shell (1); Base (11), fixedly arranged in the shell (1) inside; Guide column (13), fixedly arranged on base (11) and along the axial extension of shell (1); Drive body (2), slidingly sleeved on guide column (13); Charging interface (31), fixedly arranged on base (11) by fixed rod (3), and located in the sliding path front of drive body (2); Spring (29), arranged between drive body (2) and base (11), provides reset elastic force of drive body (2) to the direction away from base (11); Electric cylinder (12), arranged at the bottom of base (11); Positioning rod (27), fixedly arranged at the bottom of drive body (2), and its end is provided with annular groove; Wherein, charging plug (4) pushes drive body (2) to overcome the elastic force of spring (29) and slides to the direction of base (11), and makes charging plug (4) and charging interface (31) plug-in, simultaneously makes the end of positioning rod (27) and the output end of electric cylinder (12) correspond;Electric cylinder (12) clamps locking drive body (2), and releases positioning rod (27) when needing to disconnect, drive body (2) reversely slides under the reset elastic force of spring (29), to push charging plug (4) from charging interface (31).

2. The electric vehicle charging plug disconnect device of claim 1, wherein: The top of the drive body (2) is connected with a connecting rod (21), and the end of the connecting rod (21) is connected with a pushing platform (23). The pushing platform (23) is provided with a groove for accommodating or guiding the abutment of the charging interface (31) and the charging plug (4).

3. A device for disconnecting a charging plug of an electric vehicle as claimed in claim 2, wherein: The pushing platform (23) is provided with a plurality of extension rods (24) on the circumferential side. Each extension rod (24) is hingedly connected with a limiting rod (25), and a torsion spring is arranged between the extension rod (24) and the limiting rod (25) to keep the limiting rod (25) in an outwardly extending trend. The limiting rod (25) is provided with an opening for engaging with a flange on the charging plug (4).

4. The electric vehicle charging plug disconnect device of claim 3, wherein: The limiting rod (25) is connected with a roller (26), and the roller (26) is in contact with the inner wall of the shell (1).

5. The electric vehicle charging plug disconnect device of claim 1, wherein: The end of the guide column (13) is fixedly connected with an external ring (22), and the external ring (22) is fixedly connected with the guide column (13) through screw nut.

6. The electric vehicle charging plug disconnect device of claim 1, wherein: The bottom of the drive body (2) is connected with a coaxially arranged sleeve (28), and the spring (29) is sleeved on the sleeve (28).

7. The electric vehicle charging plug disconnect device of claim 1, wherein: The number of the electric cylinder (12) is one pair, and the electric cylinder (12) is oppositely arranged on both sides of the positioning rod (27). The output end of the electric cylinder (12) is provided with an arc-shaped clamp corresponding to the annular groove at the end of the positioning rod (27).

8. The electric vehicle charging plug disconnect device of claim 1, wherein: The drive body (2) is a circular truncated cone shell with a closed top and an open bottom, and at least three independent foot supports are uniformly distributed around the drive body (2). The foot supports are slidingly sleeved on the guide column (13).

9. The electric vehicle charging plug disconnect device of claim 1, wherein: The fixed rod (3) penetrates through the drive body (2) and extends towards the charging interface (31), and the drive body (2) can slide along the fixed rod (3).

10. A device for disconnecting a charging plug of an electric vehicle as claimed in any one of claims 1 to 9, wherein: The shell (1) is fixedly connected with the base (11) to form a single-sided sealed cylindrical structure.

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