A new energy automobile charging interface locking mechanism

Abstract

The utility model relates to new energy automobile charging gun technical field discloses a new energy automobile charging interface locking mechanism, including charging gun, the right side fixedly connected with handle of charging gun, the upper surface fixedly connected with fixed casing of charging gun, the upper surface left side fixedly connected with rain shield of fixed casing, the left side surface of fixed casing is set up with through slot, the inside center of fixed casing is fixedly connected with pivot, the outside rotationally connected with locking plate of pivot, the left end fixedly connected with lock hook of locking plate, the inside right side of fixed casing is provided with the down pressure piece. In the utility model, the cooperation of the arc cap, the rain shield, the limiting along and the water baffle can shield the penetration position between the down pressure piece and the fixed casing, avoid rainwater from entering, at the same time, the arc cap shields the upper side of the down pressure piece, and the arc surface of itself makes the rainwater slide, and double protection further strengthens waterproof.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle charging gun technology, and in particular to a new energy vehicle charging interface locking mechanism. Background Technology

[0002] With the rapid development of new energy technologies, the number of new energy vehicles is also increasing. Currently, in order to improve the safety of the charging process, locking devices are installed at the charging interfaces of new energy vehicles. These locking devices mostly adopt mechanical structures, typically consisting of components such as a locking hook, a locking groove, and a spring. When the user correctly inserts the charging gun into the vehicle's charging port, the locking hook is squeezed by the inclined surface or structure inside the socket and retracts into the gun head. When the charging gun is fully inserted, the locking hook will pop out under the action of the spring force and lock into the specially designed locking groove inside the vehicle's charging port, achieving physical locking and preventing the charging gun from being accidentally pulled out. This locking structure is simple, highly reliable, and provides basic mechanical fixing.

[0003] However, in actual use, the existing charging interface locking mechanism requires a button to be pressed to release the lock when locking and limiting the position through a mechanical structure. To avoid obstructing the movement of the button, a slot needs to be made on the outside of the charging gun. However, the charging gun is often used outdoors and is exposed to rain, car wash water splashes, etc. Water can easily enter the housing through the slot, corroding metal parts (such as springs and shafts), affecting lubrication, and causing electrical short circuits or mechanical jamming. Therefore, a new energy vehicle charging interface locking mechanism is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a locking mechanism for the charging interface of new energy vehicles, which aims to solve the problem that external water flow can easily enter the housing through the slots and holes, affecting the service life of metal parts in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a new energy vehicle charging interface locking mechanism, comprising a charging gun, a handle fixedly connected to the right side of the charging gun, a fixed housing fixedly connected to the upper surface of the charging gun, a rain shield fixedly connected to the left side of the upper surface of the fixed housing, a through groove formed on the left side surface of the fixed housing, a rotating shaft fixedly connected to the center of the interior of the fixed housing, a locking plate rotatably connected to the outer side of the rotating shaft, a locking hook fixedly connected to the left end of the locking plate, a pressing block provided on the right side of the interior of the fixed housing, the upper end of the pressing block penetrating the fixed housing, an arc cap fixedly connected to the upper end of the pressing block, a limit edge fixedly connected to the outer side of the pressing block, a water-blocking frame fixedly connected to the upper surface of the fixed housing, and a spring provided above the locking plate.

[0006] As a further description of the above technical solution:

[0007] The left end of the rain shield protrudes from the fixed housing, and the upper surface of the arc cap is an arc surface.

[0008] As a further description of the above technical solution:

[0009] The left end of the locking plate passes through the through groove.

[0010] As a further description of the above technical solution:

[0011] The upper surface of the limiting edge is in contact with the inner top surface of the fixed housing.

[0012] As a further description of the above technical solution:

[0013] The upper end of the spring is fixedly connected to the inner top surface of the fixed housing.

[0014] As a further description of the above technical solution:

[0015] The water-blocking frame is sleeved on the outside of the lower pressure block, and the outer ring of the upper surface of the water-blocking frame is chamfered.

[0016] As a further description of the above technical solution:

[0017] The left end of the fixed housing is arc-shaped, an arc-shaped plate is fixedly connected to the outer side of the locking plate, a waterproof cotton sleeve is fitted on the outer side of the spring, the upper end of the waterproof cotton sleeve is fixedly connected to the inner top surface of the fixed housing, and the bottom end of the waterproof cotton sleeve is fixedly connected to the upper surface of the locking plate.

[0018] As a further description of the above technical solution:

[0019] The right surface of the arc-shaped plate is in contact with the left surface of the fixed housing.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the combination of the arc-shaped cap, rain shield, limiting edge and water-blocking frame can block the through position between the lower pressure block and the fixed housing, preventing rainwater from entering. At the same time, the arc-shaped cap blocks the top of the lower pressure block, and its own arc surface allows rainwater to slide off. The double protection further enhances waterproofing and reduces the probability of mechanism failure caused by rainwater intrusion.

[0022] 2. In this utility model, the arc-shaped plate can rotate with the locking plate and always fits the arc surface of the left end of the housing, dynamically sealing the through groove to prevent rainwater from entering the fixed housing through the through groove and affecting the service life of the internal components. The waterproof cotton sleeve can absorb moisture in the air to prevent the spring from rusting and failing due to moisture inside the fixed housing, ensuring the long-term stable operation of the spring. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a new energy vehicle charging interface locking mechanism proposed in this utility model.

[0024] Figure 2 This is a schematic diagram of the front cross-section of the fixing housing of a new energy vehicle charging interface locking mechanism proposed in this utility model.

[0025] Figure 3 This is a schematic diagram of the fixing housing of a new energy vehicle charging interface locking mechanism proposed in this utility model;

[0026] Figure 4 This is a schematic diagram showing the disassembled locking plate and lower pressure block of a new energy vehicle charging interface locking mechanism proposed in this utility model.

[0027] Legend:

[0028] 1. Charging gun; 2. Handle; 3. Fixed housing; 4. Rain shield; 5. Through groove; 6. Rotating shaft; 7. Locking plate; 8. Locking hook; 9. Lower pressure block; 10. Arc cap; 11. Limiting edge; 12. Waterproof frame; 13. Spring; 14. Arc plate; 15. Waterproof cotton cover. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figures 1-3This utility model provides an embodiment of a new energy vehicle charging interface locking mechanism, including a charging gun 1. A handle 2 is fixedly connected to the right side of the charging gun 1, allowing the user to quickly pick up or insert the charging gun 1 by holding the handle 2. A fixed housing 3 is fixedly connected to the upper surface of the charging gun 1. A rain shield 4 is fixedly connected to the left side of the upper surface of the fixed housing 3, with the left end of the rain shield 4 protruding from the fixed housing 3. The rain shield 4 can protect the left side of the fixed housing 3, reducing the risk of water flowing into the interior of the fixed housing 3 through the left side. A through groove 5 is formed on the left side surface of the fixed housing 3, and a rotating shaft 6 is fixedly connected to the center of the interior of the fixed housing 3. A locking plate 7 is rotatably connected to the outer side of the rotating shaft 6. The locking plate 7 can rotate around the rotating shaft 6. The left end of the locking plate 7 passes through the through groove 5. A locking hook 8 is fixedly connected to the left end of the locking plate 7. An annular slot that matches the size of the locking hook 8 is provided inside the charging port, so that the locking hook 8 can engage with it to limit the position of the charging gun 1. A spring 13 is provided above the locking plate 7. The spring 13 is made of piano wire. The upper end of the spring 13 is fixedly connected to the inner top surface of the fixed housing 3. When the right end of the locking plate 7 is pressed down, the locking plate 7 can rotate around the rotating shaft 6 to the upper left, which can drive the locking hook 8 to tilt upward, so that the charging gun 1 can be smoothly inserted into the charging port.

[0031] Reference Figures 2-4 A pressing block 9 is located on the right side of the interior of the fixed housing 3. The bottom end of the pressing block 9 is arc-shaped, which allows it to better fit against the upper surface of the locking plate 7. The upper end of the pressing block 9 penetrates the fixed housing 3, and an arc-shaped cap 10 is fixedly connected to the upper end of the pressing block 9. The upper surface of the arc-shaped cap 10 is arc-shaped, allowing the user to quickly press the pressing block 9. The upper surface of the arc-shaped cap 10 is polished to prevent rainwater from adhering. A limiting edge 11 is fixedly connected to the outer side of the pressing block 9. The upper surface of the limiting edge 11 fits against the inner top surface of the fixed housing 3, and the limiting edge 11 can limit the pressing block 9, preventing it from falling out. The upper part is detached from the fixed housing 3. A water-blocking frame 12 is fixedly connected to the upper surface of the fixed housing 3. The water-blocking frame 12 is sleeved on the outside of the lower pressure block 9. The outer ring of the upper surface of the water-blocking frame 12 is chamfered. The water-blocking frame 12 can block and protect the outside of the penetration position between the lower pressure block 9 and the fixed housing 3, which can prevent rainwater falling on the upper surface of the fixed housing 3 from entering the interior of the fixed housing 3 through the penetration position. At the same time, the arc cap 10 can block and protect the upper part of the lower pressure block 9, so that rainwater will not fall directly to the penetration position between the lower pressure block 9 and the fixed housing 3. The arc surface structure of the upper surface of the arc cap 10 itself can also make the rainwater falling on it slide directly off.

[0032] Reference Figures 2-4The left end of the fixed housing 3 is arc-shaped, and the diameter of the arc surface at the left end of the fixed housing 3 is the same as the diameter of the movement trajectory of the locking plate 7. An arc-shaped plate 14 is fixedly connected to the outer side of the locking plate 7. The right side surface of the arc-shaped plate 14 is in contact with the left side surface of the fixed housing 3. When the locking plate 7 rotates, it can drive the arc-shaped plate 14 to move synchronously. At the same time, when the arc-shaped plate 14 rotates, it can move in contact with the left end of the fixed housing 3, so that the arc-shaped plate 14 can always keep the through groove 5 blocked and protected, preventing rainwater from splashing into the fixed housing 3 through the through groove 5. Inside, a waterproof cotton sleeve 15 is fitted around the outside of the spring 13. The waterproof cotton sleeve 15 is made of super absorbent polymer (SAP) composite cotton. The waterproof cotton sleeve 15 can absorb moisture in the air outside the spring 13, preventing the inside of the fixed housing 3 from being too humid, which would affect the service life of the spring 13. The upper end of the waterproof cotton sleeve 15 is fixedly connected to the inner top surface of the fixed housing 3, and the lower end of the waterproof cotton sleeve 15 is fixedly connected to the upper surface of the locking plate 7. At the same time, the waterproof cotton sleeve 15 is made of absorbent cotton material and can deform itself, so it will not move up the locking plate 7 and obstruct it.

[0033] Working principle: When the charging gun 1 is inserted into the charging port, the user can press down the arc cap 10 to move the pressing block 9 down, which squeezes the locking plate 7. This causes the left end of the locking plate 7 to move the locking hook 8 up, while simultaneously squeezing the spring 13. This causes the spring 13 to compress and deform, generating elastic potential energy. The upward-curving locking hook 8 can prevent the charging gun 1 from being inserted into the charging port. As the charging gun 1 is fully inserted into the charging port, the user can release the pressing block 9, allowing the locking hook 8 to quickly move down and reset under the action of the elastic potential energy of the spring 13, locking into the corresponding locking structure of the charging port to achieve locking and ensure the stability of the charging gun 1 during charging.

[0034] When the charging gun 1 needs to be pulled out, the user presses the arc cap 10, the lower pressing block 9 moves down, and its bottom arc surface presses against the upper surface of the right end of the locking plate 7. The locking plate 7 rotates around the pivot 6, and the left end tilts up, causing the locking hook 8 to disengage from the charging port locking structure. At the same time, the spring 13 is compressed, which can quickly release the limit on the charging gun 1, so that the charging gun 1 can be pulled out quickly.

[0035] Then, the arc cap 10 is released, the spring 13 returns to its original position, and the locking plate 7 is pushed back to its initial position to prepare for the next locking. Then the charging gun 1 can be pulled out. In rainy weather, the arc cap 10 and the water-blocking frame 12 can protect the through position between the lower pressure block 9 and the fixed housing 3, reducing the intrusion of rainwater into the fixed housing 3 and affecting the service life of the internal components. At the same time, the arc plate 14 and the rain-blocking plate 4 can protect the through groove 5, further reducing the intrusion of rainwater. The waterproof cotton sleeve 15 can also dehumidify the outside of the spring 13, preventing excessive humidity from affecting the use of the spring 13.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A locking mechanism for a charging interface of a new energy vehicle, comprising a charging gun (1), characterized in that: A handle (2) is fixedly connected to the right side of the charging gun (1). A fixed housing (3) is fixedly connected to the upper surface of the charging gun (1). A rain shield (4) is fixedly connected to the left side of the upper surface of the fixed housing (3). A through groove (5) is opened on the left side surface of the fixed housing (3). A rotating shaft (6) is fixedly connected to the center of the interior of the fixed housing (3). A locking plate (7) is rotatably connected to the outside of the rotating shaft (6). A locking hook (8) is fixedly connected to the left end of the locking plate (7). A pressing block (9) is provided on the right side of the interior of the fixed housing (3). The upper end of the pressing block (9) penetrates the fixed housing (3). An arc cap (10) is fixedly connected to the upper end of the pressing block (9). A limit edge (11) is fixedly connected to the outside of the pressing block (9). A water-blocking frame (12) is fixedly connected to the upper surface of the fixed housing (3). A spring (13) is provided above the locking plate (7).

2. The locking mechanism for a new energy vehicle charging interface according to claim 1, characterized in that: The left end of the rain shield (4) protrudes from the fixed housing (3), and the upper surface of the arc cap (10) is an arc surface.

3. The locking mechanism for a new energy vehicle charging interface according to claim 1, characterized in that: The left end of the locking plate (7) passes through the through groove (5).

4. The locking mechanism for a new energy vehicle charging interface according to claim 1, characterized in that: The upper surface of the limiting edge (11) is in contact with the inner top surface of the fixed housing (3).

5. A new energy vehicle charging interface locking mechanism according to claim 1, characterized in that: The upper end of the spring (13) is fixedly connected to the inner top surface of the fixed housing (3).

6. A new energy vehicle charging interface locking mechanism according to claim 1, characterized in that: The water-blocking frame (12) is sleeved on the outside of the lower pressure block (9), and the outer ring of the upper surface of the water-blocking frame (12) is chamfered.

7. A new energy vehicle charging interface locking mechanism according to claim 1, characterized in that: The left end of the fixed housing (3) is arc-shaped. An arc plate (14) is fixedly connected to the outer side of the locking plate (7). A waterproof cotton sleeve (15) is sleeved on the outer side of the spring (13). The upper end of the waterproof cotton sleeve (15) is fixedly connected to the inner top surface of the fixed housing (3). The bottom end of the waterproof cotton sleeve (15) is fixedly connected to the upper surface of the locking plate (7).

8. A new energy vehicle charging interface locking mechanism according to claim 7, characterized in that: The right side surface of the arc plate (14) is in contact with the left side surface of the fixed housing (3).

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