New energy automobile charging gun

By setting unlocking parts and separation parts in the charging gun of a new energy vehicle, the problem of cable dragging caused by drivers forgetting to pull out the charging gun is solved, and rapid separation and protection is achieved, improving the safety and service life of the equipment.

CN119283667AInactive Publication Date: 2025-01-10GUANGZHOU XINGCHI TECHNOLOGY CO LTD

Patent Information

Application Number
CN202411821396.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-11
Publication Date
2025-01-10
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

If the existing new energy vehicle charging gun is completed, if the driver forgets to pull out and drive the car after charging, the cables are easily dragged and caused safety accidents or equipment damage.

Method used

A new energy vehicle charging gun is designed. By setting unlocking parts and separation parts, the unlocking parts are triggered when the cable is straightened, and the locking tongue is unlocked, and the charging gun is quickly ejected outward through the separation ring to separate the charging gun from the car. Prevent cable drag and charger from falling.

Benefits of technology

It effectively prevents damage to the charging gun and charging pile caused by dragging the cable, and protects the charging head through the ejected separation ring to avoid falling and damage, improving the safety and service life of the charging gun.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of automobile charging, and discloses a new energy automobile charging gun which comprises a shell, a charging head arranged on the shell and a cable arranged in the shell and further comprises a protection unit arranged in the shell, and the protection unit comprises an unlocking component and a separation component which are arranged in the shell; the unlocking part comprises a locking groove formed in the shell and an unlocking button arranged in the locking groove in a sliding mode. Through the arrangement of the unlocking part, when a driver forgets to pull out the charging gun and starts the automobile to drag the cable, the straightened cable enables the locking tongue piece to unlock the charging gun and the automobile through the trigger assembly, and through the separation part, the separation ring rapidly bounces outwards, and the charging gun is separated from the automobile; and meanwhile, the pop-up separation ring can wrap the charging head to protect the charging head, and the situation that the charging head is damaged due to the fact that the charging gun falls off is prevented.
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Description

Technical Field

[0001] The present invention relates to the technical field of automobile charging, and in particular to a charging gun for a new energy automobile. Background Art

[0002] The new energy vehicle charging gun is a crucial device in the charging process of electric vehicles. It is used to connect the charging port of the electric vehicle with the charging pile to realize battery charging. The design of the charging gun must meet the safety and performance requirements of current, voltage, temperature, etc. At the same time, it also needs to be compatible with electric vehicles of different brands and types.

[0003] Existing staff usually install a locking device on the charging gun to prevent the charging gun from accidentally falling off during the charging process, but the following problem still exists. After the charging gun has finished charging the car, if the driver forgets to unplug the charging gun due to negligence or an emergency, and drives away the car directly, the car will drive the charging gun to move synchronously, and the cable at the connection between the charging gun and the charging pile will be dragged, which may easily cause safety accidents and cause damage to the charging gun and the charging pile. Summary of the invention

[0004] In view of the problem in the prior art that the driver forgets to unplug the charging gun and causes the cable to be dragged when driving the car, resulting in a safety accident or damage to the charging gun or charging pile, a new energy vehicle charging gun is proposed.

[0005] The present application provides a new energy vehicle charging gun, the purpose of which is: by setting an unlocking component, when the driver forgets to unplug the charging gun and starts the car so that the cable is dragged, the straightened cable can trigger the locking tongue to release the lock between the charging gun and the car, and through the separation component, the separation ring can quickly pop outward and separate the charging gun from the car, preventing the cable from being dragged and causing damage to the charging gun and the charging pile. At the same time, the pop-up separation ring can wrap the charging head to protect it, preventing the charging gun from falling and causing damage to the charging head.

[0006] The technical solution of the present invention is: a new energy vehicle charging gun, comprising a housing, a charging head arranged on the housing, a cable arranged inside the housing, and a protection unit arranged in the housing, wherein the protection unit comprises an unlocking component and a separation component arranged in the housing; The unlocking component includes a locking groove provided on the housing, an unlocking button slidably arranged in the locking groove, a return spring arranged at the lower end of the unlocking button and the bottom end of the locking groove, a transmission rod provided on the unlocking button, a hinge block hingedly arranged on the transmission rod, a locking tongue piece provided on one end of the transmission rod, a trigger rod hingedly arranged at the lower end of the unlocking button, a mounting rod provided inside the housing, a slide rail seat provided on the mounting rod, a sliding seat slidably arranged on the slide rail seat, a vertical groove provided on the sliding seat, a hinged rod slidably arranged in the vertical groove, the hinged rod is rotatably mounted on the lower end of the trigger rod, and a trigger assembly is installed in the housing; The cable is located inside the shell in a bent state, one end of the cable is electrically connected to the charging head, a through slot is provided at the lower end of the locking slot, the lower end of the trigger rod is rotatably connected to the hinge rod through the through slot, and the locking tongue is located above the charging head.

[0007] Furthermore, the trigger assembly includes a supporting block arranged inside the shell, a lead groove opened on the supporting block, the cable is located in the lead groove, a fixing ring is arranged on the cable, a slide groove opened on the supporting block, a sliding rod is arranged on the fixing ring, the sliding rod is located in the slide groove, and a transmission element is installed between the sliding rod and the sliding seat.

[0008] Furthermore, the transmission element includes a connecting plate arranged on the side wall of the sliding seat, and a pulling rod hingedly arranged between the connecting plate and the sliding rod.

[0009] Furthermore, the separation component includes an annular groove opened on the charging head, a separation ring slidably arranged in the annular groove, one end of the separation ring is located inside the shell, and an elastic component is installed between the separation ring and the shell.

[0010] Furthermore, the elastic component includes a limiting ring 1 arranged on the inner wall of the separation ring, a limiting ring 2 arranged on the inner wall of the outer shell, a trigger spring arranged between the limiting ring 1 and the limiting ring 2, and a release element is installed between the limiting ring 1 and the sliding seat.

[0011] Furthermore, the release element includes an extended seat arranged on the side wall of the sliding seat, a movable rod arranged on the side wall of the sliding seat, the movable rod is located in the extended seat, a support ring arranged in the extended seat, a cam tube arranged in the support ring, a protruding rod arranged on the movable rod, a threaded groove opened on the inside of the cam tube, one end of the protruding rod is located in the threaded groove, and a blocking rod is arranged on the outer wall of the cam tube, and the side wall of the blocking rod is in close contact with a side wall of the limiting ring.

[0012] Furthermore, the outer surface of the separation ring is solidly covered with rubber, and the side wall of the separation ring is provided with a rounded corner.

[0013] Furthermore, the length of the separation ring inside the shell is greater than the length of the charging head, the trigger spring is in a stretched state, and the stretching distance of the trigger spring is equal to the length of the charging head.

[0014] Beneficial effects of the present invention: By reserving a longer cable inside the charging gun housing, when the driver forgets to unplug the charging gun and start the car, the cable reserved inside the charging gun will be quickly straightened after the cable is dragged, and during the straightening process of the cable, the unlocking component is triggered by the trigger assembly, and the locking tongue is lifted upward to release the lock on the charging gun. This process is triggered during the straightening of the cable, which can release the lock of the locking tongue on the charging gun before the connection between the cable and the charging head is subjected to tension, thereby minimizing the damage and impact of the cable dragging on the cable connection.

[0015] By setting up a separation component, when the locking tongue piece releases the lock on the charging gun, the release element and the elastic component can be used to make the separation ring move outward quickly under the action of the trigger spring, and during the movement, it contacts the outer wall of the car to generate thrust, so that the unlocked charging gun is pushed out and separated from the car, preventing the charging gun from being further dragged by the car.

[0016] By setting rubber on the separation ring, the hard contact between the separation ring and the car can be minimized. At the same time, the pop-up separation ring can wrap around the charging head and protect the charging head to prevent the charging gun from falling to the ground after being separated from the car, causing hard contact between the charging head and the ground and causing damage to the charging head. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure from a first viewing angle of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of partial cross-section structure; Figure 3 It is a schematic diagram of the separation ring structure of the present invention; Figure 4 For the present invention Figure 3 Schematic diagram of the planar structure after partial section; Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle; Figure 6 It is a schematic diagram of the installation structure of the trigger spring of the present invention; Figure 7 It is a schematic diagram of the unlocking component structure of the present invention; Figure 8 It is a schematic diagram of the fixing ring structure of the present invention; Fig. 9 For the present invention Figure 8The enlarged structural diagram at B in the middle; Fig.10 It is a schematic diagram of the planar structure of the release element of the present invention; Fig.11 It is a schematic diagram of the internal structure of the cam cylinder of the present invention; Fig.12 It is a schematic diagram of the baffle structure of the present invention.

[0018] In the figure: 1. Shell; 2. Charging head; 3. Cable; 4. Unlock button; 5. Reset spring; 6. Transmission rod; 7. Articulated block; 8. Locking tongue; 9. Trigger rod; 10. Mounting rod; 11. Slide rail seat; 12. Sliding seat; 13. Articulated rod; 14. Bearing block; 15. Fixed ring; 16. Sliding rod; 17. Connecting plate; 18. Pull rod; 19. Separation ring; 20. Limiting ring 1; 21. Limiting ring 2; 22. Trigger spring; 23. Extension seat; 24. Movable rod; 25. Support ring; 26. Cam tube; 27. Protruding rod; 28. Threaded groove; 29. ​​Stop rod; 30. Locking groove. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0020] Example 1, reference Figure 1-Figure 3 as well as Figure 7-Figure 9 , which is the first embodiment of the present invention, provides a new energy vehicle charging gun, including a housing 1, a charging head 2 fixedly mounted on the housing 1, a cable 3 placed inside the housing 1, and also includes a protection unit installed in the housing 1, the protection unit includes an unlocking component and a separation component installed in the housing 1; The unlocking component includes a locking groove 30 provided on the housing 1, an unlocking button 4 slidably installed in the locking groove 30, a return spring 5 fixedly installed at the lower end of the unlocking button 4 and the bottom end of the locking groove 30, a transmission rod 6 fixedly installed on the unlocking button 4, a hinge block 7 hingedly installed on the transmission rod 6, a locking tongue piece 8 fixedly installed on one end of the transmission rod 6, a trigger rod 9 hingedly installed at the lower end of the unlocking button 4, a mounting rod 10 fixedly installed inside the housing 1, a slide rail seat 11 fixedly installed on the mounting rod 10, a sliding seat 12 slidably installed on the slide rail seat 11, a vertical groove provided on the sliding seat 12, a hinged rod 13 slidably installed in the vertical groove, the hinged rod 13 is rotatably installed at the lower end of the trigger rod 9, and a trigger assembly is installed in the housing 1; The cable 3 is located inside the housing 1 in a bent state, one end of the cable 3 is electrically connected to the charging head 2, a through slot is provided at the lower end of the locking slot 30, the lower end of the trigger rod 9 is rotatably connected to the hinge rod 13 through the through slot, and the locking tongue 8 is located above the charging head 2.

[0021] Reference Figure 6-Figure 9 The trigger assembly includes a bearing block 14 fixedly mounted inside the housing 1, a guide groove provided on the bearing block 14, the cable 3 is located in the guide groove, a fixing ring 15 fixedly mounted on the cable 3, a slide groove provided on the bearing block 14, a sliding rod 16 fixedly mounted on the fixing ring 15, the sliding rod 16 is located in the slide groove, and a transmission element is installed between the sliding rod 16 and the sliding seat 12. The transmission element includes a connecting plate 17 fixedly mounted on the side wall of the sliding seat 12, and a pull rod 18 hingedly mounted between the connecting plate 17 and the sliding rod 16.

[0022] Specifically, the unlocking component has the following function: when the driver forgets to unplug the charging gun and drives the car, the cable 3 at the end of the charging gun will be pulled as the car moves. When the cable 3 is pulled, the unlocking component can be triggered immediately, so that the locking tongue 8 in the prior art can be tilted upward, and the locking of the charging gun and the charging port of the car can be released, so that the charging gun can be pulled out more easily. It should be noted that the front half of the cable 3 located inside the charging gun housing 1 (i.e., the cable 3 between the fixing ring 15 and the charging head 2) needs to reserve a certain length of the cable 3 in a relaxed state. The purpose of this setting is that when the cable 3 is pulled, the tension acts on the cable 3 instead of the two ends of the cable 3 at the first time, and the unlocking component is triggered when the cable 3 is straightened during the pulling process, and the lock can be released at the first time when the cable 3 is pulled. In this way, the charging head 2 can be unlocked before the two ends of the cable 3 are pulled, which is convenient for the subsequent separation of the charging head 2 and the car, and the connection end of the charging head 2 will not be damaged due to the pulling force, which effectively improves the service life.

[0023] The unlocking button 4 slides up and down in the locking groove 30, thereby controlling the up and down movement of the locking tongue 8 (that is, the unlocking button 4 is pressed and moves downward, the locking tongue 8 tilts upward, and after the unlocking button 4 is reset, the locking tongue 8 is reset synchronously). When the locking tongue 8 is tilted, the charging head 2 and the car are in an unlocked state. When the locking tongue 8 is reset, the locking tongue 8 is in a locked state for the charging head 2 and the car (this is the prior art and will not be elaborated on here).

[0024] By hingedly installing the trigger rod 9, the hinge rod 13 and the sliding seat 12 below the unlocking button 4, when the driver is charging normally, he can normally press the unlocking button 4 to charge through the charging head 2, so that normal pressing of the unlocking button 4 will not trigger the displacement of the sliding seat 12. When the cable 3 is pulled to trigger the unlocking component, the sliding seat 12 slides and drives the unlocking button 4 to move downward, which can also unlock the locking tongue 8, and the two effects do not affect each other when triggered.

[0025] By reserving a certain distance of the cable 3 in a relaxed state, when the cable 3 is subjected to the pulling force of the charging pile (not shown in the figure) during the driving of the car, the cable 3 in the relaxed state will be in a straightened state, and the straightened cable 3 will be displaced rearward relative to the housing 1 in the lead groove (that is, the cable 3 at the fixing ring 15 will slide along the lead groove, that is, the sliding rod 16 will slide a certain distance along the direction of the slide groove). When the sliding rod 16 slides a certain distance, the sliding seat 12 will be pulled by the pull rod 18 to slide on the slide rail seat 11 in the same direction. During the sliding process, the sliding seat 12 will pull the unlocking button 4 downward through the trigger rod 9, so that the unlocking button 4 will be displaced downward. When the unlocking button 4 is displaced downward, the locking tongue 8 will tilt upward, and then contact the lock between the charging head 2 and the car, so that the charging head 2 can be more easily cooperated with the subsequent separation components to be separated from the car.

[0026] During use, when the driver completes charging or needs to leave, and forgets to unplug the charging gun and drives the car, the charging gun located on the car will cause the cable 3 to be subjected to tension. When the cable 3 is subjected to tension, the cable 3 reserved inside the charging gun housing 1 will be straightened under the action of the tension, and the cable 3 located inside the housing 1 will move backward relative to the charging gun. During the straightening process of the cable 3, the fixing ring 15 on its surface will move synchronously with the cable 3, so that the fixing ring 15 will slide in the lead groove of the bearing block 14. During the movement of the fixing ring 15, the sliding rod 16 will be driven to slide in the sliding groove. During the sliding process of the sliding rod 16, the sliding seat 12 will be pulled along the slide rail seat 11 by the pull rod 18. During the sliding process of the sliding seat 12, the unlocking button 4 will be pulled downward by the trigger rod 9 to slide. When the unlocking button 4 slides downward, it is lifted upward by the locking tongue 8 to release the lock between the charging head 2 and the car.

[0027] Example 2, reference Figure 2-Figure 6 as well as Figure 10-12, which is the second embodiment of the present invention, and this embodiment is different from the first embodiment in that: the separation component includes a ring groove provided on the charging head 2, a separation ring 19 slidably installed in the ring groove, one end of the separation ring 19 is located inside the housing 1, and an elastic component is installed between the separation ring 19 and the housing 1. The elastic component includes a limiting ring 1 20 fixedly installed on the inner wall of the separation ring 19, a limiting ring 21 fixedly installed on the inner wall of the housing 1, a trigger spring 22 fixedly installed between the limiting ring 1 20 and the limiting ring 21, and a release element is installed between the limiting ring 1 20 and the sliding seat 12. The release element includes an extension seat 23 fixedly mounted on the side wall of the sliding seat 12, a movable rod 24 fixedly mounted on the side wall of the sliding seat 12, the movable rod 24 is located in the extension seat 23, a support ring 25 fixedly mounted in the extension seat 23, a cam tube 26 rotatably mounted in the support ring 25, a protruding rod 27 fixedly mounted on the movable rod 24, a threaded groove 28 provided on the inner wall of the cam tube 26, one end of the protruding rod 27 is located in the threaded groove 28, and a blocking rod 29 fixedly mounted on the outer wall of the cam tube 26, and the side wall of the blocking rod 29 is in close contact with the side wall of the limiting ring 20.

[0028] Specifically, the function of the separation component is: by quickly popping out the separation ring 19, the separation ring 19 contacts the car, and the unlocked charging head 2 is quickly popped out, so that the unlocked charging head 2 is completely separated from the car, and the driving of the car causes the cable 3 to be pulled and damaged at the connection point of the cable 3. The trigger spring 22 is always in a stretched state, so that the separation ring 19 is always inside the housing 1, and the blocking rod 29 blocks and limits the limiting ring 1 20. When the blocking rod 29 no longer blocks the limiting ring 1 20, the limiting ring 1 20 will slide outward under the elastic force of the trigger spring 22 in the stretched state, so that the limiting ring 1 20 drives the separation ring 19 to slide outward and interacts with the car, so that the charging gun is completely separated from the car, preventing safety accidents and equipment damage.

[0029] When the unlocking component is triggered, the sliding sliding seat 12 will drive the movable rod 24 to move synchronously in the horizontal direction. When the movable rod 24 moves horizontally, the convex rod 27 at its upper end cooperates with the threaded groove 28 inside the cam tube 26, so that the cam tube 26 rotates 180°. When the cam tube 26 rotates, it drives the blocking rod 29 to rotate synchronously, so that the blocking rod 29 no longer limits the limiting ring 20. After the limiting ring 20 loses the limit of the blocking rod 29, it will slide outward rapidly under the elastic force of the trigger spring 22, thereby driving the separation ring 19 to move synchronously. When the separation ring 19 moves, it contacts the car and separates the charging gun from the car under the action of the thrust, thereby achieving that when the unlocking component is triggered so that the locking tongue 8 no longer locks the charging gun, the charging gun can be completely separated from the car through the thrust of the separation ring 19, thereby preventing the car from continuing to drive and causing the charging gun to be pulled and damaged.

[0030] When the charging gun is completely separated from the car, the staff always presses the separation ring 19 inward to reset it. While pressing the separation ring 19 inside the ring groove, the cable 3 at the end of the charging gun is conveyed inward. At this time, as the cable 3 is conveyed inward and the reset spring 5 exerts an upward elastic force on the unlocking button 4, the fixed ring 15, the sliding rod 16, the sliding seat 12 and the unlocking button 4 are reset. During the resetting process of the sliding seat 12, the movable rod 24 drives the cam cylinder 26 to rotate in the opposite direction for reset. When the cam cylinder 26 is reset, the blocking rod 29 again limits and fixes the limiting ring 20 on the separation ring 19. After the reset is completed, the staff does not need to press the separation ring 19 again, and the internal structure of the charging gun is in the initial state, which is convenient for subsequent reuse.

[0031] During use, when the sliding seat 12 slides horizontally along the slide rail seat 11, it will drive the movable rod 24 to move synchronously. During the movement of the movable rod 24, the protruding rod 27 on its outer wall cooperates with the threaded groove 28 on the inner wall of the cam tube 26. The sliding movable rod 24 causes the cam tube 26 to rotate 180° through the protruding rod 27. During the rotation of the cam tube 26, the blocking rod 29 is driven to rotate synchronously. The blocking rod 29 rotated 180° no longer limits the limiting ring 20, so that the trigger spring 22 in the stretched state drives the limiting ring 20 and the separation ring 19 to slide outward along the ring groove through the elastic force. During the outward sliding process of the separation ring 19, it contacts with the car, so that the charging gun is completely separated from the car through the thrust, thereby avoiding subsequent pulling on the charging gun.

[0032] The remaining structures are the same as those of Example 1.

[0033] Example 3, reference Figure 5 and Figure 6 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that the outer surface of the separation ring 19 is solidly covered with rubber, and the side wall of the separation ring 19 is provided with a rounded corner. The length of the separation ring 19 inside the housing 1 is greater than the length of the charging head 2, the trigger spring 22 is in a stretched state, and the stretched distance of the trigger spring 22 is equal to the length of the charging head 2.

[0034] Specifically, rubber is arranged above the separation ring 19, so that when the separation ring 19 slides outward and contacts the car, hard contact between the separation ring 19 and the car can be avoided. At the same time, the chamfered corners can also reduce the damage of the separation ring 19 to the surface of the car. At the same time, the length of the separation ring 19 inside the outer shell 1 and the stretching distance of the trigger spring 22 are limited. On the one hand, it is to ensure that when the trigger spring 22 rebounds, it drives the separation ring 19 to effectively contact the car to generate thrust. On the other hand, it can enable the separation ring 19 to completely wrap the charging head 2 when it pops out to prevent the charging head 2 from being damaged when it falls to the ground after being separated from the car. The separation ring 19 can completely separate the charging gun from the car, and at the same time, it can protect the charging head 2 to prevent the charging head 2 from colliding with the ground and being damaged.

[0035] The remaining structure is the same as that of Example 2.

[0036] Based on Examples 1-3, the working principle of the present invention is as follows: when the driver completes charging or needs to leave, and forgets to unplug the charging gun and drives the car, the charging gun located on the car will cause the cable 3 to be subjected to tension. When the cable 3 is subjected to tension, the cable 3 reserved inside the charging gun housing 1 will be straightened under the action of the tension, and the cable 3 located inside the housing 1 will move backward relative to the charging gun. During the straightening process of the cable 3, the fixing ring 15 on the surface of the cable 3 will move synchronously with the cable 3, so that the fixing ring 15 will slide in the lead groove of the bearing block 14. During the movement of the fixing ring 15, the sliding rod 16 will be driven to slide in the sliding groove. During the sliding process of the sliding rod 16, the sliding seat 12 will be pulled by the pull rod 18 to slide along the slide rail seat 11. During the sliding process of the sliding seat 12, the unlocking button 4 will be pulled downward by the trigger rod 9 to slide. When the unlocking button 4 slides downward, it is lifted upward by the locking tongue 8 to release the lock between the charging head 2 and the car.

[0037] When the sliding seat 12 slides horizontally along the slide rail seat 11, it will drive the movable rod 24 to move synchronously. During the movement of the movable rod 24, the protruding rod 27 on its outer wall cooperates with the threaded groove 28 on the inner wall of the cam tube 26. The sliding movable rod 24 causes the cam tube 26 to rotate 180° through the protruding rod 27. During the rotation of the cam tube 26, the blocking rod 29 is driven to rotate synchronously. The blocking rod 29 rotated 180° no longer limits the limiting ring 1 20, so that the trigger spring 22 in the stretched state drives the limiting ring 1 20 and the separation ring 19 to slide outward along the ring groove through elastic force. During the outward sliding process of the separation ring 19, the charging gun is completely separated from the car through thrust, thereby avoiding the subsequent pulling of the charging gun. After the separation ring 19 slides outward to completely separate the charging gun from the car, the pop-up separation ring 19 can completely wrap the charging head 2 to prevent the charging head 2 from being damaged during the falling process.

[0038] When the charging gun is completely separated from the car, the staff always presses the separation ring 19 inward to reset it. While pressing the separation ring 19 inside the ring groove, the cable 3 at the end of the charging gun is conveyed inward. At this time, as the cable 3 is conveyed inward and the reset spring 5 exerts an upward elastic force on the unlocking button 4, the fixed ring 15, the sliding rod 16, the sliding seat 12 and the unlocking button 4 are reset. During the resetting process of the sliding seat 12, the movable rod 24 drives the cam cylinder 26 to rotate in the opposite direction for reset. When the cam cylinder 26 is reset, the blocking rod 29 again limits and fixes the limiting ring 20 on the separation ring 19. After the reset is completed, the staff does not need to press the separation ring 19 again, and the internal structure of the charging gun is in the initial state, which is convenient for subsequent reuse.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A new energy vehicle charging gun, comprising a housing (1), a charging head (2) arranged on the housing (1), and a cable (3) arranged inside the housing (1), characterized in that: Also included is a protection unit arranged in the housing (1), the protection unit comprising an unlocking component and a separation component arranged in the housing (1); The unlocking component comprises a locking groove (30) provided on the housing (1), an unlocking button (4) slidably arranged in the locking groove (30), a return spring (5) arranged at the lower end of the unlocking button (4) and the bottom end of the locking groove (30), a transmission rod (6) provided on the unlocking button (4), a hinge block (7) hingedly arranged on the transmission rod (6), a locking tongue (8) provided on one end of the transmission rod (6), a trigger rod (9) hingedly arranged at the lower end of the unlocking button (4), a mounting rod (10) provided inside the housing (1), a slide rail seat (11) provided on the mounting rod (10), a sliding seat (12) slidably arranged on the slide rail seat (11), a vertical groove provided on the sliding seat (12), a hinge rod (13) slidably arranged in the vertical groove, the hinge rod (13) being rotatably mounted on the lower end of the trigger rod (9), and a trigger assembly being installed in the housing (1); The cable (3) is located inside the housing (1) in a bent state, one end of the cable (3) is electrically connected to the charging head (2), a through slot is provided at the lower end of the locking slot (30), the lower end of the trigger rod (9) is rotatably connected to the hinge rod (13) via the through slot, and the locking tongue (8) is located above the charging head (2).

2. A new energy vehicle charging gun according to claim 1, characterized in that: The trigger assembly comprises a bearing block (14) arranged inside the housing (1), a wire guide groove provided on the bearing block (14), the cable (3) being located in the wire guide groove, a fixing ring (15) provided on the cable (3), a slide groove provided on the bearing block (14), a sliding rod (16) provided on the fixing ring (15), the sliding rod (16) being located in the slide groove, and a transmission element being installed between the sliding rod (16) and the sliding seat (12).

3. A new energy vehicle charging gun according to claim 2, characterized in that: The transmission element comprises a connecting plate (17) arranged on the side wall of the sliding seat (12), and a pulling rod (18) hingedly arranged between the connecting plate (17) and the sliding rod (16).

4. A new energy vehicle charging gun according to claim 1, characterized in that: The separation component comprises an annular groove formed on the charging head (2), a separation ring (19) slidably arranged in the annular groove, one end of the separation ring (19) being located inside the housing (1), and an elastic component being installed between the separation ring (19) and the housing (1).

5. A new energy vehicle charging gun according to claim 4, characterized in that: The elastic component comprises a limiting ring 1 (20) arranged on the inner wall of the separation ring (19), a limiting ring 2 (21) arranged on the inner wall of the housing (1), a trigger spring (22) arranged between the limiting ring 1 (20) and the limiting ring 2 (21), and a release element is installed between the limiting ring 1 (20) and the sliding seat (12).

6. A new energy vehicle charging gun according to claim 5, characterized in that: The release element comprises an extension seat (23) arranged on the side wall of the sliding seat (12), a movable rod (24) arranged on the side wall of the sliding seat (12), the movable rod (24) being located in the extension seat (23), a support ring (25) arranged in the extension seat (23), a cam tube (26) arranged in the support ring (25), a protruding rod (27) arranged on the movable rod (24), a threaded groove (28) provided on the inside of the cam tube (26), one end of the protruding rod (27) being located in the threaded groove (28), and a blocking rod (29) arranged on the outer wall of the cam tube (26), the side wall of the blocking rod (29) being in close contact with the side wall of the limiting ring (20).

7. A new energy vehicle charging gun according to claim 6, characterized in that: The outer surface of the separation ring (19) is solidly covered with rubber, and the side wall of the separation ring (19) is provided with a rounded corner.

8. A new energy vehicle charging gun according to claim 7, characterized in that: The length of the separation ring (19) inside the housing (1) is greater than the length of the charging head (2); the trigger spring (22) is in a stretched state, and the stretched distance of the trigger spring (22) is equal to the length of the charging head (2).

Citation Information

Patent Citations

  • Charging locking device of electric vehicle and using method

    CN117855960A

  • High-power charging connector for new energy automobile

    CN118841773A

  • New energy automobile charging gun

    CN219163805U

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