New energy automobile charging gun locking mechanism

By integrating pressure sensors, voice prompts, and automatic locking mechanisms into the charging gun for new energy vehicles, the problem of the charging gun being difficult to remove in an emergency is solved, ensuring safety and protecting the charging head, and improving the user experience and charging efficiency.

CN120895960APending Publication Date: 2025-11-04SUZHOU TITANIUM NEW ENERGY TECH CO LTD
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Patent Information

Application Number
CN202511137901.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-14
Publication Date
2025-11-04

AI Technical Summary

Technical Problem

Existing charging guns for new energy vehicles are difficult to pull out quickly in emergencies, and can easily lead to safety hazards and reduced charging efficiency due to accidental disconnection or collision. In addition, the charging head is prone to damage and dust accumulation.

Method used

A charging gun locking mechanism was designed, which includes a pressure sensor, a voice player, a distance sensor, and a locking mechanism. The sensor detects the insertion status and automatically locks or unlocks the charging gun. Combined with the flipping mechanism, it protects the charging head and ensures safe and stable charging.

Benefits of technology

It enables quick unlocking of the charging gun in emergencies, preventing accidental disconnection, protecting the charging head, improving charging safety and reliability, and extending service life.

✦ Generated by Eureka AI based on patent content.

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    Figure CN120895960A_ABST
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Abstract

The invention discloses a new energy automobile charging gun locking mechanism which comprises a charging gun body, a locking cover is fixedly connected to the top of the charging gun body, a controller is fixedly connected to the side, corresponding to the locking cover, of the top of the charging gun body, and a control button is arranged at the top of the controller. An emergency button is arranged on the side, corresponding to the control button, of the top of the controller, a pressure sensor is fixedly connected to the bottom of the charging gun body, and a voice player is fixedly connected to the side, corresponding to the pressure sensor, of the bottom of the charging gun body; a locking cover is arranged on the outer surface of the charging gun body, a locking mechanism used for rapidly locking the charging gun body to an automobile charging port is arranged in the locking cover, a protective cover is arranged on one side of the charging gun body, and a turnover mechanism used for automatically opening the protective cover is arranged on the outer surface of the connecting ring. The charging gun solves the problems that the charging gun is difficult to pull out and does not have a protection function under some emergency and special conditions, and the use experience is improved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of new energy vehicle charging, in particular to a new energy vehicle charging gun locking mechanism. BACKGROUND

[0002] With the global emphasis on environmental protection and sustainable development, new energy vehicles have become an important direction for the development of the automotive industry due to their zero or low emission advantages. In recent years, new energy vehicle technology has been continuously improving, market share has been continuously rising, and charging infrastructure has been built on a large scale. As a key device for new energy vehicle energy supply, the number and distribution range of charging piles are increasingly expanding to meet the growing demand for new energy vehicle charging.

[0003] In order to ensure the safety of the charging process and prevent the charging gun from being mistakenly pulled out before the charging is terminated, causing personnel safety accidents or other adverse effects, existing charging piles are generally equipped with electronic locking mechanisms. The working principle of this electronic locking mechanism is that during the charging process, the charging gun will be automatically locked with the charging pile to form a stable connection, ensuring the continuity and stability of the charging. From the technical implementation point of view, the electronic locking mechanism usually controls the action of the locking component through an electrical control system to achieve the locking and unlocking of the charging gun, but in some emergency situations where the charging gun needs to be immediately pulled out to avoid more serious consequences, rescue personnel or users may have difficulty in quickly pulling out the charging gun, not only delaying the rescue opportunity, but also making the fire and other accidents further expand, causing more serious personnel casualties and property losses, and in actual use, the charging head is prone to contact with the ground or other hard objects, and is damaged by collision, scratching, etc. during placement or handling, causing the shell of the charging head to break or dust to easily accumulate on the charging head, impurities in the dust may enter the charging interface, causing poor contact, reducing charging efficiency, and affecting the normal use and charging effect of the charging gun. SUMMARY

[0004] The purpose of the present application is to provide a new energy vehicle charging gun locking mechanism to solve the new energy vehicle charging problem raised in the background art.

[0005] In order to achieve the above object, the present application provides the following technical scheme: A new energy automobile charging gun locking mechanism, comprising a charging gun main body, the top of the charging gun main body is fixedly connected with a locking cover, and the top of the charging gun main body is fixedly connected with a controller on the side corresponding to the locking cover, the top of the controller is provided with a control button, and the top of the controller is provided with an emergency button on the side corresponding to the control button, the bottom of the charging gun main body is fixedly connected with a pressure sensor, and the bottom of the charging gun main body is fixedly connected with a voice player on the side corresponding to the pressure sensor, the bottom of the locking cover is fixedly connected with a connecting ring, and the inside of the locking cover is provided with a locking mechanism for quickly locking the charging gun main body in the automobile charging port, one side of the charging gun main body is provided with a protective cover, and the outer surface of the connecting ring is provided with a turnover mechanism for automatically opening the protective cover.

[0006] Preferably, the charging gun main body is composed of a charging head and a charging handle, one end of the charging head is fixedly connected to one end of the charging handle, and the locking cover and the controller are located on the top of the charging handle, and the pressure sensor and the voice player are located on the bottom of the charging handle, and the protective cover is located on one side of the charging head.

[0007] Preferably, the inner wall of the connecting ring is sleeved on the outer surface of the charging handle of the charging gun main body, and three distance sensors are fixedly connected to the outer surface of the charging head on one end of the charging handle of the charging gun main body, and the three distance sensors are arranged in a ring shape on the charging handle of the charging gun main body.

[0008] Preferably, the locking mechanism comprises a control motor, a double-track conveying wheel, a single-track conveying wheel, a single-track conveying wheel, a conveying belt, a partition plate, a threaded rod, a driving block, a locking rod, a rotating shaft and a lock tongue, the inside of the locking cover is fixedly connected with the control motor, the movable end of the control motor is fixedly connected with the double-track conveying wheel, the outer surface of the double-track conveying wheel is movably connected with two conveying belts, one end of each of the two conveying belts is movably connected with a single-track conveying wheel, one end of each of the two single-track conveying wheels is fixedly connected with a threaded rod, the inner wall of the locking cover is fixedly connected with the partition plate, the inner wall of the locking cover is slidably connected with the driving block on the side corresponding to the partition plate, the inner wall of the locking cover is rotatably connected with the locking rod through the rotating shaft, and one end of the locking rod is fixedly connected with the lock tongue.

[0009] Preferably, the driving block is trapezoidal, two sliding grooves are formed in the bottom of the driving block, and two threaded holes are formed in one end of the driving block.

[0010] Preferably, one end of each of the two threaded rods penetrates through the partition plate and is threadedly connected in the two threaded holes of the driving block, and the outer surfaces of the two threaded rods are rotatably connected with the partition plate.

[0011] Preferably, the bottom inner wall of the locking cover is fixedly connected with two slide rods, and the top portions of the two slide rods are slidably connected inside the two movable grooves of the driving block.

[0012] Preferably, one end of the locking rod is provided with a placing groove, and a transmission wheel is rotatably connected inside the placing groove, and two return springs are fixed between the locking rod and the inner wall of the locking cover.

[0013] Preferably, the turnover mechanism comprises a fixed plate, a control motor two, a worm, a worm wheel, a rotating rod and a connecting rod, the outer surface of the connecting ring is fixedly connected with two fixed plates, one side of one of the fixed plates is fixedly connected with the control motor two, the movable end of the control motor two is fixedly connected with the worm, one side of the worm is meshingly connected with the worm wheel, the center of the worm wheel is fixedly connected with the rotating rod, one end of the rotating rod penetrates through the worm wheel and is rotatably connected on the outer surface of the connecting ring, and the other end of the rotating rod is fixedly connected with the connecting rod.

[0014] Preferably, the rotating rod and the connecting rod are both provided with two, and the protective cover is fixedly connected between the two connecting rods, and one end of each of the two connecting rods is fixedly connected with the two rotating rods, and one end of each of the two rotating rods is rotatably connected on the outer surface of the connecting ring.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] 1. When the distance sensor detects that the charging gun is inserted, the control motor one in the locking mechanism is controlled to work through the controller, driving the double-track conveying wheel, the single-track conveying wheel, the threaded rod and other components to work cooperatively, so as to drive the driving block to slide, and then drive the locking rod to lower the locking tongue, thereby automatically locking the charging gun on the new energy vehicle charging port, which is simple and convenient to operate and does not need manual additional locking steps, thereby improving the use experience.

[0017] 2. The driving block is trapezoidal and provided with a sliding groove at the bottom and a threaded hole at one end, which cooperates with the threaded rod, the slide rod and the like to ensure that the driving block slides linearly and stably, the transmission wheel is arranged at one end of the locking rod, and the driving block can be smoothly lifted or lowered when rolling on the slope, thereby driving the locking tongue to accurately lock or unlock the charging port clamping groove, the overall structure is reasonable, the locking process is stable, and the charging gun can be prevented from being accidentally pulled out during the charging process.

[0018] 3. The control button gives voice prompts through the voice player when the pressure sensor senses that the user holds the charging gun body, thereby preventing mispulling, and after the user presses the emergency button, the control motor one controls the driving block to slide inward, the locking rod drives the locking tongue to move upward under the elastic force of the return spring, thereby quickly unlocking, so that the charging gun can be pulled out from the new energy vehicle charging port in time, thereby avoiding the problem that the charging gun cannot be operated in an emergency.

[0019] 4、By setting the turnover mechanism, the protective cover can be driven to make arc movement downward to cover the charging head end when the charging gun is not used, effectively preventing the charging head from being damaged by knocking and avoiding a large amount of dust from entering the inside of the charging head, protecting the performance of the charging head, prolonging the service life thereof, and ensuring the stability of the charging effect.

[0020] 5、Three distance sensors are fixedly connected to the outer surface of one end of the charging gun handle in a ring-shaped arrangement, which can accurately detect whether the charging gun is inserted properly when the charging gun is inserted into the new energy vehicle charging port, avoid charging failure or safety hazards caused by improper insertion, and improve the safety and reliability of the charging process. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is the overall view of the present application;

[0022] Figure 2 is the bottom view of the present application;

[0023] Figure 3 is the top view of the present application;

[0024] Figure 4 is Figure 1 is the enlarged view of A in the middle;

[0025] Figure 5 is the sectional view of the locking cover of the present application;

[0026] Figure 6 is the partial structure schematic view of the locking mechanism of the present application;

[0027] Figure 7 is the sectional view of the driving block of the present application;

[0028] Figure 8 is the structure schematic view of the locking rod of the present application.

[0029] In the figure: 1, charging gun body; 2, locking cover; 3, controller; 4, control button; 5, emergency button; 6, pressure sensor; 7, voice player; 8, connecting ring; 9, protective cover; 10, distance sensor; 11, control motor one; 12, double-track conveying wheel; 13, single-track conveying wheel; 14, conveying belt; 15, partition plate; 16, threaded rod; 17, driving block; 18, locking rod; 19, transmission wheel; 20, sliding rod; 21, return spring; 22, rotating shaft; 23, locking tongue; 24, fixed plate; 25, control motor two; 26, worm; 27, worm gear; 28, rotating rod; 29, connecting rod. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application.

[0031] Please refer to Figures 1-8 The application provides a new energy automobile charging gun locking mechanism, which comprises a charging gun body 1, a locking cover 2 is fixedly connected to the top of the charging gun body 1, a controller 3 is fixedly connected to the side of the top of the charging gun body 1 corresponding to the locking cover 2, a control button 4 is arranged on the top of the controller 3, an emergency button 5 is arranged on the side of the top of the controller 3 corresponding to the control button 4, a pressure sensor 6 is fixedly connected to the bottom of the charging gun body 1, and a voice player 7 is fixedly connected to the side of the bottom of the charging gun body 1 corresponding to the pressure sensor 6, a connecting ring 8 is fixedly connected to the bottom of the locking cover 2, and a locking mechanism for quickly locking the charging gun body 1 in the automobile charging port is arranged in the locking cover 2, a protective cover 9 is arranged on the side of the charging gun body 1, and a turnover mechanism for automatically opening the protective cover 9 is arranged on the outer surface of the connecting ring 8.

[0032] Further, the charging gun body 1 is composed of a charging head and a charging handle, one end of the charging head is fixedly connected to one end of the charging handle, the locking cover 2 and the controller 3 are located on the top of the charging handle, the pressure sensor 6 and the voice player 7 are located on the bottom of the charging handle, and the protective cover 9 is located on the side of the charging head.

[0033] Further, the inner wall of the connecting ring 8 is sleeved on the outer surface of the charging handle of the charging gun body 1, and three distance sensors 10 are fixedly connected to the outer surface of the charging head on one end of the charging handle of the charging gun body 1, and the three distance sensors 10 are arranged in a ring shape on the charging handle of the charging gun body 1.

[0034] Further, the locking mechanism comprises a control motor 11, double-track conveying wheels 12, single-track conveying wheels 13, conveying belts 14, a partition plate 15, threaded rods 16, driving blocks 17, a locking rod 18, a rotating shaft 22 and a locking tongue 23, the control motor 11 is fixedly connected in the locking cover 2, the active end of the control motor 11 is fixedly connected with the double-track conveying wheels 12, the outer surface of the double-track conveying wheels 12 is movably connected with two conveying belts 14, one end of each of the two conveying belts 14 is movably connected with a single-track conveying wheel 13, one end of each of the two single-track conveying wheels 13 is fixedly connected with a threaded rod 16, the partition plate 15 is fixedly connected to the inner wall of the locking cover 2, the driving blocks 17 are slidably connected to the side of the inner wall of the locking cover 2 corresponding to the partition plate 15, the locking rod 18 is rotatably connected to the inner wall of the locking cover 2 through the rotating shaft 22, and one end of the locking rod 18 is fixedly connected with the locking tongue 23.

[0035] Further, the driving block 17 is trapezoidal, two sliding grooves are formed in the bottom of the driving block 17, and two threaded holes are formed in one end of the driving block 17.

[0036] Further, one end of the two threaded rods 16 penetrates through the partition plate 15 and is threadedly connected in the two threaded holes of the driving block 17 respectively, and the outer surfaces of the two threaded rods 16 are in rotational connection with the partition plate 15.

[0037] Further, the bottom inner wall of the locking cover 2 is fixedly connected with two slide rods 20, and the top portions of the two slide rods 20 are slidably connected in the two movable grooves of the driving block 17 respectively.

[0038] Further, one end of the locking rod 18 is provided with a placing groove, the inside of the placing groove is rotatably connected with a transmission wheel 19, and two return springs 21 are fixed between the locking rod 18 and the inner wall of the locking cover 2.

[0039] Further, the overturning mechanism comprises a fixed plate 24, a control motor two 25, a worm 26, a worm wheel 27, a rotating rod 28 and a connecting rod 29, the outer surface of the connecting ring 8 is fixedly connected with two fixed plates 24, one side of one of the two fixed plates 24 is fixedly connected with the control motor two 25, the movable end of the control motor two 25 is fixedly connected with the worm 26, one side of the worm 26 is meshingly connected with the worm wheel 27, the center of the worm wheel 27 is fixedly connected with the rotating rod 28, one end of the rotating rod 28 penetrates through the worm wheel 27 and is rotatably connected on the outer surface of the connecting ring 8, and the other end of the rotating rod 28 is fixedly connected with the connecting rod 29.

[0040] Further, the rotating rod 28 and the connecting rod 29 are both provided with two, and the protective cover 9 is fixedly connected between the two connecting rods 29, one end of the two connecting rods 29 is fixedly connected with the two rotating rods 28 respectively, and one end of the two rotating rods 28 is rotatably connected on the outer surface of the connecting ring 8.

[0041] The embodiment of the application is used as follows: first, the control button 4 is pressed to start the control motor two 25, so that the movable end of the control motor two 25 drives the worm 26 to rotate between the two fixed plates 24, then the meshing connection between the worm 26 and the worm gear 27 enables the worm 26 to drive the worm gear 27 to rotate, so that the worm gear 27 drives the connecting rod 29 to move in a circle through the rotating rod 28, so that the connecting rod 29 drives the protective cover 9 to move in a circle around the rotating rod 28, thereby driving the protective cover 9 to move downward in an arc, thereby opening the charging head end of the charging gun body 1, conversely, the flip mechanism drives the protective cover 9 to return to the original position, so that when the charging gun body 1 is not charging, the protective cover 9 can protect the charging head end of the charging gun body 1, prevent the charging head of the charging gun body 1 from being bumped and prevent a large amount of dust from entering to affect the charging effect, then the charging head end of the charging gun body 1 is inserted into the charging port of the new energy vehicle, then the distance sensor 10 detects whether the charging gun body 1 is inserted, when the charging gun body 1 is inserted, the distance sensor 10 starts the control motor one 11 through the controller 3, so that the movable end of the control motor one 11 drives the double-track conveying wheel 12 to rotate, then the double-track conveying wheel 12 drives the two single-track conveying wheels 13 to rotate through the two conveying belts 14, thereby driving the two threaded rods 16 to rotate, through the threaded connection between the threaded rod 16 and the driving block 17, the driving block 17 slides outward on the inner wall of the locking cover 2, through the two slide rods 20, the driving block 17 slides linearly, then the driving block 17 slides on the top inclined surface, so that the transmission wheel 19 rolls on the inclined surface of the driving block 17, while the one end of the locking rod 18 slowly rises, so that the other end of the locking rod 18 slowly lowers through the rotating shaft 22, thereby making the locking rod 18 drive the locking tongue 23 to lower, so that the bottom end of the locking tongue 23 can be buckled in the clamping groove of the new energy vehicle charging port, thereby locking the charging gun body 1 on the new energy vehicle charging port, conversely, when an emergency occurs, when the new energy vehicle charging is not completed, the pressure sensor 6 senses that the user holds the charging gun body 1, the control button 4 will give a voice prompt through the voice player 7 to prevent mispulling, then the user presses the emergency button 5, so that the emergency button 5 starts the control motor one 11, thereby controlling the driving block 17 to slide inward, so that the locking rod 18 drives the locking tongue 23 to move upward under the elastic force of the two return springs 21, thereby enabling the charging gun body 1 to be pulled out of the new energy vehicle charging port, avoiding the charging gun body 1 from being unable to be pulled out in an emergency.

[0042] Although the present application has been described in detail with reference to the foregoing embodiments, the technical solutions recorded in the foregoing embodiments can be modified, or some of the technical features can be replaced by equivalent features, by those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A locking mechanism for a charging gun of a new energy vehicle, comprising a charging gun body (1), characterized in that: The top of the charging gun body (1) is fixedly connected to a locking cover (2), and the top of the charging gun body (1) is fixedly connected to a controller (3) on one side of the locking cover (2). The top of the controller (3) is provided with a control button (4), and the top of the controller (3) is provided with an emergency button (5) on one side of the control button (4). The bottom of the charging gun body (1) is fixedly connected to a pressure sensor (6), and the bottom of the charging gun body (1) is fixedly connected to a voice player (7) on one side of the pressure sensor (6). The bottom of the locking cover (2) is fixedly connected to a connecting ring (8), and the inside of the locking cover (2) is provided with a locking mechanism for quickly locking the charging gun body (1) to the car charging port. A protective cover (9) is provided on one side of the charging gun body (1), and the outer surface of the connecting ring (8) is provided with a flipping mechanism for automatically opening the protective cover (9).

2. The new energy vehicle charging gun locking mechanism according to claim 1, characterized in that: The charging gun body (1) consists of a charging head and a charging handle. One end of the charging head is fixedly connected to one end of the charging handle. The locking cover (2) and the controller (3) are both located on the top of the charging handle. The pressure sensor (6) and the voice player (7) are both located at the bottom of the charging handle. The protective cover (9) is located on one side of the charging head.

3. The new energy vehicle charging gun locking mechanism according to claim 2, characterized in that: The inner wall of the connecting ring (8) is sleeved on the outer surface of the charging handle of the charging gun body (1), and three distance sensors (10) are fixedly connected to one end of the charging handle of the charging gun body (1) corresponding to the outer surface of the charging head, and the three distance sensors (10) are arranged in a ring on the charging handle of the charging gun body (1).

4. The new energy vehicle charging gun locking mechanism according to claim 1, characterized in that: The locking mechanism includes a control motor (11), a double-track transmission wheel (12), a single-track transmission wheel (13), a transmission belt (14), a partition plate (15), a threaded rod (16), a drive block (17), a locking rod (18), a rotating shaft (22), and a locking tongue (23). The control motor (11) is fixedly connected inside the locking cover (2), and the double-track transmission wheel (12) is fixedly connected to the movable end of the control motor (11). Two double-track transmission wheels (12) are movably connected to the outer surface of the double-track transmission wheel (12). The conveyor belt (14) has a single track conveyor wheel (13) movably connected to one end of each of the two conveyor belts (14), and a threaded rod (16) is fixedly connected to one end of each of the two single track conveyor wheels (13). A partition plate (15) is fixedly connected to the inner wall of the locking cover (2), and a drive block (17) is slidably connected to one side of the inner wall of the locking cover (2) corresponding to the partition plate (15). A locking rod (18) is rotatably connected to the inner wall of the locking cover (2) through a rotating shaft (22), and a locking tongue (23) is fixedly connected to one end of the locking rod (18).

5. A new energy vehicle charging gun locking mechanism according to claim 4, characterized in that: The drive block (17) is trapezoidal, and two sliding grooves are provided at the bottom of the drive block (17), and two threaded holes are provided at one end of the drive block (17).

6. A new energy vehicle charging gun locking mechanism according to claim 5, characterized in that: One end of each of the two threaded rods (16) passes through the partition plate (15) and is threaded into the two threaded holes of the drive block (17), and the outer surfaces of the two threaded rods (16) are rotatably connected to the partition plate (15).

7. A new energy vehicle charging gun locking mechanism according to claim 5, characterized in that: The bottom inner wall of the locking cover (2) is fixedly connected to two slide rods (20), and the tops of the two slide rods (20) are slidably connected to the two movable slots of the drive block (17).

8. A new energy vehicle charging gun locking mechanism according to claim 1, characterized in that: One end of the locking rod (18) is provided with a placement groove, and a transmission wheel (19) is rotatably connected inside the placement groove. Two return springs (21) are fixed between the locking rod (18) and the inner wall of the locking cover (2).

9. A new energy vehicle charging gun locking mechanism according to claim 1, characterized in that: The flipping mechanism includes a fixed plate (24), a second control motor (25), a worm (26), a worm wheel (27), a rotating rod (28), and a connecting rod (29). Two fixed plates (24) are fixedly connected to the outer surface of the connecting ring (8), and the second control motor (25) is fixedly connected to one side of one of the fixed plates (24). The worm (26) is fixedly connected to the movable end of the second control motor (25). The worm wheel (27) is meshed to one side of the worm (26). The rotating rod (28) is fixedly connected to the center of the worm wheel (27). One end of the rotating rod (28) passes through the worm wheel (27) and is rotatably connected to the outer surface of the connecting ring (8). The other end of the rotating rod (28) is fixedly connected to the connecting rod (29).

10. A new energy vehicle charging gun locking mechanism according to claim 9, characterized in that: Two rotating rods (28) and two connecting rods (29) are provided, and the protective cover (9) is fixedly connected between the two connecting rods (29). One end of each connecting rod (29) is fixedly connected to the two rotating rods (28), and one end of each rotating rod (28) is rotatably connected to the outer surface of the connecting ring (8).