New energy automobile charging gun locking mechanism

Abstract

The utility model relates to the technical field of new energy automobile charging guns, and provides a new energy automobile charging gun locking mechanism which comprises a charging gun, a charging head, a fixing cover, two side limiting cavities, a clamping tongue and a control groove, the charging head of the charging gun is fixedly connected to one end of the charging gun, a grip is fixedly connected to the upper wall of the charging gun, and the clamping tongue is fixedly connected to the upper wall of the charging gun. The control groove is formed in one end, close to the charging head, of the grip; and an electromagnet is fixedly connected to the interior of the control groove. Through interaction of an electromagnet and a permanent magnet, after electric energy is input to the electromagnet, magnetic force is generated, through magnetic pole exchange of the electromagnet and mutual cooperation of the permanent magnet and a downward pressing spring, a clamping tongue can controllably conduct unlocking action of locking, through arrangement of a side limiting cavity and an inserting strip, the device is prevented from swinging left and right during locking, and the locking effect is improved. And through the arrangement of the inner contact and the outer contact, the device can sense whether the charging gun is correctly inserted or not, and poor contact caused by discharging due to incomplete insertion is avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of new energy vehicle charging guns, specifically relating to a new energy vehicle charging gun locking mechanism. Background Technology

[0002] The charging gun locking mechanism is a core safety device in the charging process of new energy vehicles. Its core function is to ensure that the charging gun and the vehicle charging interface are firmly connected during charging, preventing accidental detachment or plugging and unplugging while the power is on. Its importance is reflected in: ensuring personal safety, maintaining charging stability and improving user experience. At the same time, it must meet the harsh environmental tolerance requirements and is a key technical support for the safe and efficient operation of new energy vehicle charging.

[0003] A known authorized patent with application number 202222005704.0 discloses a locking mechanism for a new energy vehicle charging gun: It includes a connector and a limiting device. The connector has a button on its surface. One end of the connector is fixedly connected to a wire, and the end of the connector away from the wire has a charging block. A handle is fixedly connected to the surface of the connector. The limiting device is located on the inner wall of the connector and includes a limiting hole and a slot. The limiting hole is located on the inner wall of the connector, and the slot is located on the inner wall of the charging block. This invention, by setting a limiting device, effectively restricts the connection between the connector and the charging block, thus securing the connector and reducing the likelihood of the connector easily detaching from the charging block during use, which could hinder charging and improve the practicality of the device.

[0004] However, in implementing the relevant technology, the following problems were found in the above technical solution: the device uses a purely mechanical locking method to lock the charging gun, but the locking operation is cumbersome, and it is impossible to confirm whether the charging gun is correctly and completely inserted when using it.

[0005] Therefore, a new energy vehicle charging gun locking mechanism is proposed to solve the above problems. Utility Model Content

[0006] This utility model proposes a new energy vehicle charging gun locking mechanism, which solves the problem that the device in the related technology uses a purely mechanical latch to lock the charging gun, but the locking operation is relatively cumbersome and it is impossible to confirm whether the charging gun is correctly and fully inserted during use.

[0007] The technical solution of this utility model is as follows: a new energy vehicle charging gun locking mechanism, including: a charging gun, a charging head, a fixing cover, two side limiting cavities, a latch and a control groove. The charging head of the charging gun is fixedly connected to one end of the charging gun, and a handle is fixedly connected to the upper wall of the charging gun. The control groove is opened at the end of the handle near the charging head.

[0008] An electromagnet is fixedly connected inside the control slot. A plastic limiting post is inserted inside the electromagnet. A permanent magnet is fixedly connected to the top of the plastic limiting post. The latch is engaged between the permanent magnet and the electromagnet.

[0009] The side limiting cavity is fixedly connected to both sides of the charging gun, and two internal contacts are provided inside the side limiting cavity.

[0010] Preferably, a sleeve rod is fixedly connected to the top end of the permanent magnet, and the other end of the sleeve rod is fixedly connected to the top end of the control groove. A compression spring is sleeved on the outer wall of the sleeve rod, and a limit post is fixedly connected inside the control groove, with the limit post penetrating the latch.

[0011] Preferably, a top post is inserted into the inner wall of the side limiting cavity, a top plate is fixedly connected inside the side limiting cavity, the top post penetrates the top plate, a locking strip is fixedly connected to the top of the top post, a spring is fixedly connected to the top of the top plate, the other end of the spring is fixedly connected to the outer wall of the top post, a connecting strip is fixedly connected to the bottom of the top post, and a limiting post is fixedly connected inside the side limiting cavity.

[0012] Preferably, the outer wall of the fixing cover is fixedly connected with an insert, the outer wall of the insert is fixedly connected with an external contact, the inside of the insert has a limiting groove, the limiting groove corresponds to the position of the limiting post, and the bottom end of the insert has a locking tooth corresponding to the locking strip.

[0013] Preferably, the interior of the fixing cover is provided with a top slot, and the interior of the top slot is provided with a locking groove corresponding to the locking tongue.

[0014] Preferably, a control button is fixedly connected to the outer wall of the grip, and a spare battery is provided on the inner wall of the grip.

[0015] The working principle and beneficial effects of this utility model are as follows:

[0016] Through the interaction between the electromagnet and the permanent magnet, magnetic force is generated after electrical energy is input to the electromagnet. The interaction between the electromagnet's magnetic poles and the permanent magnet and the pressing spring allows the latch to controllably lock and unlock. The side limiting cavity and the insertion bar prevent the device from swaying left and right during locking, making the locking more reliable. Furthermore, the internal and external contacts allow the device to sense whether the charging gun is correctly inserted, avoiding poor contact caused by incomplete discharge. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a cross-sectional three-dimensional structural diagram of the side limiting cavity of this utility model;

[0020] Figure 3 This utility model Figure 2 A magnified structural diagram at point A;

[0021] Figure 4 This is a cross-sectional three-dimensional structural diagram of the control groove of this utility model;

[0022] Figure 5 This utility model Figure 4 A magnified structural diagram at point A.

[0023] In the diagram: 1. Charging gun; 2. Charging head; 3. Handle; 4. Fixing cover; 5. Side limiting cavity; 6. Limiting post; 7. Locking strip; 8. Top post; 9. Top plate; 10. Spring; 11. Connecting strip; 12. Inner contact; 13. Outer contact; 14. Insert strip; 15. Limiting groove; 16. Top slot; 17. Locking tongue; 18. Control button; 19. Control groove; 20. Spare battery; 21. Limiting post; 22. Electromagnet; 23. Plastic limiting post; 24. Permanent magnet; 25. Downward spring; 26. Sleeve rod. Detailed Implementation

[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0025] Implementation

[0026] Please see Figure 1 -5. A new energy vehicle charging gun locking mechanism, comprising: a charging gun 1, a charging head 2, a fixing cover 4, two side limiting cavities 5, a latch 17 and a control groove 19, wherein the charging head 2 is fixedly connected to one end of the charging gun 1, and a handle 3 is fixedly connected to the upper wall of the charging gun 1, and the control groove 19 is opened at the end of the handle 3 near the charging head 2.

[0027] An electromagnet 22 is fixedly connected inside the control slot 19. A plastic limiting post 23 is inserted inside the electromagnet 22. A permanent magnet 24 is fixedly connected to the top of the plastic limiting post 23. A latch 17 is engaged between the permanent magnet 24 and the electromagnet 22.

[0028] The side limiting cavity 5 is fixedly connected to both sides of the charging gun 1, and two internal contacts 12 are provided inside the side limiting cavity 5.

[0029] The technical solution provided in this embodiment is as follows: First, the fixing cover 4 is fixed. Then, the charging head 2 of the charging gun 1 is inserted into the interior of the fixing cover 4. During insertion, the permanent magnet 24 is not energized. Only the downward spring 25 is used to press down the latch 17, and the limit rod 21 limits the displacement of the latch 17 to linear up and down movement. When the insert 14 is inserted into the side limiting cavity 5, the insertion of the insert 14 presses the latch 7 downward, and the limiting post 6 prevents the angle from deviating during insertion. After full insertion, the latch 7 will be pushed upward under the action of the spring 10, so that the latch 7 and the insert 14 are firmly engaged, and the inner contact 12 and the outer contact 13 are in contact with each other. By sensing the current, it is confirmed that the insertion is complete, and the charging operation can be carried out. When charging is completed, the charging gun 1 needs to be pulled out. First, press the control button 18 to control the button 18 to issue a command to the electromagnet 22. When energized, the magnetic poles of electromagnet 22 are opposite to those of permanent magnet 24. Under the repulsive force of the magnetic forces, the latch 17 is raised and engages with the locking position of the top slot 16. Then, the two connecting strips 11 are pulled down. The connecting strips 11 resist the upward force of the spring 10 and move the latch 7 downward, engaging with the locking position of the latch 7 and the insert 14. After the contacts open, the energization of permanent magnet 24 is stopped, and the magnetic force of permanent magnet 24 is removed to prevent overheating caused by prolonged energization of electromagnet 24. After the inner and outer contacts open, the latch 17 has left the locking position of the top slot 16, releasing the restriction. After the insert 14 is completely pulled out, the fixing cover 4 is completely disconnected from the charging gun 1. In the event of a sudden power failure, the backup battery 20 is responsible for energizing electromagnet 24, ensuring that the connection between charging gun 1 and fixing cover 3 can still be disconnected in special circumstances.

[0030] Furthermore, a sleeve rod 26 is fixedly connected to the top of the permanent magnet 24, and the other end of the sleeve rod 26 is fixedly connected to the top of the control groove 19. A compression spring 25 is sleeved on the outer wall of the sleeve rod 26, and a limit post 21 is fixedly connected inside the control groove 19, with the limit post 21 penetrating the latch 17.

[0031] Specifically, by setting the downward spring 25, the latch 17 can continuously provide sufficient downward pressure when it is correctly inserted.

[0032] Furthermore, a top post 8 is inserted into the inner wall of the side limiting cavity 5, a top plate 9 is fixedly connected inside the side limiting cavity 5, the top post 8 penetrates the top plate 9, a retaining strip 7 is fixedly connected to the top of the top post 8, a spring 10 is fixedly connected to the top of the top plate 9, the other end of the spring 10 is fixedly connected to the outer wall of the top post 8, a connecting strip 11 is fixedly connected to the bottom of the top post 8, and a limiting post 6 is fixedly connected inside the side limiting cavity 5.

[0033] Specifically, the locking strip 7 and the spring 10 are designed to ensure that the locking strip 7 can be securely engaged with the insert strip 14, and the locking strip 7 will immediately reset after the top post 8 is pulled down to release the locking strip 7 from the insert strip 14.

[0034] Furthermore, the outer wall of the fixed cover 4 is fixedly connected with an insert 14, the outer wall of the insert 14 is fixedly connected with an external contact 13, the inside of the insert 14 is provided with a limiting groove 15, the limiting groove 15 corresponds to the position of the limiting post 6, and the bottom end of the insert 14 is provided with a corresponding locking tooth of the locking strip 7.

[0035] Specifically, by setting the inner contact 12 and the outer contact 13, the device can determine whether the charging gun 1 is correctly inserted after insertion, thus avoiding damage to the charging gun 1 caused by locking when it is not fully inserted.

[0036] Furthermore, the interior of the fixing cover 4 is provided with a top slot 16, and the interior of the top slot 16 is provided with a groove corresponding to the latch 17.

[0037] Specifically, the top slot 16 can cooperate with the latch 17 to give the device multiple locking mechanisms, making the locking of the device more secure.

[0038] Furthermore, a control button 18 is fixedly connected to the outer wall of the grip 3, and a spare battery 20 is provided on the inner wall of the grip 3.

[0039] Specifically, the backup battery 20 can also power the electromagnet 22 during operation, ensuring that the charging gun 1 can be pulled out under special conditions.

[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A locking mechanism for a charging gun of a new energy vehicle, comprising: A charging gun (1), a charging head (2), a fixing cover (4), two side limiting cavities (5), a latch (17) and a control groove (19), characterized in that the charging head (2) of the charging gun (1) is fixedly connected to one end of the charging gun (1), a handle (3) is fixedly connected to the upper wall of the charging gun (1), and the control groove (19) is opened at one end of the handle (3) near the charging head (2); An electromagnet (22) is fixedly connected inside the control slot (19). A plastic limiting post (23) is inserted inside the electromagnet (22). A permanent magnet (24) is fixedly connected to the top of the plastic limiting post (23). The latch (17) is engaged between the permanent magnet (24) and the electromagnet (22). The side limiting cavity (5) is fixedly connected to both sides of the charging gun (1), and two internal contacts (12) are provided inside the side limiting cavity (5).

2. The new energy vehicle charging gun locking mechanism according to claim 1, characterized in that: The top end of the permanent magnet (24) is fixedly connected to a sleeve rod (26), and the other end of the sleeve rod (26) is fixedly connected to the top end of the control groove (19). A compression spring (25) is sleeved on the outer wall of the sleeve rod (26). A limit post (21) is fixedly connected inside the control groove (19), and the limit post (21) passes through the latch (17).

3. The new energy vehicle charging gun locking mechanism according to claim 1, characterized in that: A top post (8) is inserted into the inner wall of the side limiting cavity (5). A top plate (9) is fixedly connected inside the side limiting cavity (5). The top post (8) penetrates the top plate (9). A retaining strip (7) is fixedly connected to the top of the top post (8). A spring (10) is fixedly connected to the top of the top plate (9). The other end of the spring (10) is fixedly connected to the outer wall of the top post (8). A connecting strip (11) is fixedly connected to the bottom of the top post (8). A limiting post (6) is fixedly connected inside the side limiting cavity (5).

4. The new energy vehicle charging gun locking mechanism according to claim 1, characterized in that: The outer wall of the fixed cover (4) is fixedly connected with a strip (14), and the outer wall of the strip (14) is fixedly connected with an external contact (13). A limiting groove (15) is opened inside the strip (14), and the limiting groove (15) corresponds to the position of the limiting post (6). The bottom end of the strip (14) is provided with a corresponding locking tooth of the locking strip (7).

5. A new energy vehicle charging gun locking mechanism according to claim 1, characterized in that: The fixed cover (4) has a top slot (16) inside, and the top slot (16) has a groove corresponding to the latch (17).

6. The new energy vehicle charging gun locking mechanism according to claim 1, characterized in that: A control button (18) is fixedly connected to the outer wall of the grip (3), and a spare battery (20) is provided on the inner wall of the grip (3).

Images