A charging gun for new energy vehicles

Abstract

The present invention discloses a charging gun for new energy vehicles, comprising a housing and a lock plate, a button, and a support head elastically connected to the housing. The lock plate is provided with a pressure groove, the bottom of the button is provided with a self-locking shaft, the bottom of the button is provided with a driven plate, the driven plate is provided with a driven hole, a driving plate is fixed on the self-locking shaft, the driving plate is provided with a driving head, the support head is in contact with the button, and a pressure plate is movably provided on it, one end of the pressure plate is inserted into the pressure groove, and the other end is fixedly connected to the driving plate in the horizontal direction and movably connected in the vertical direction. After pressing the button, the button presses one end of the lock plate upward through the pressure plate. After the self-locking shaft moves toward the driven plate, the driving plate drives the pressure plate out of the pressure groove. At the same time, the driving head is inserted into and downwardly contacts the driven hole to drive the button to move downward. The beneficial effect of the present invention is that when the charging gun is working, the button moves downward and is hidden and cannot be pressed, which is safer and more convenient.

Description

Technical Field

[0001] The present invention belongs to the field of new energy technology, and specifically relates to a charging gun for new energy vehicles. Background Art

[0002] A charging gun for new energy vehicles is a device used to provide power to electric vehicles or plug-in hybrid vehicles. It is usually used in conjunction with a charging pile or charging station to transfer electricity from the grid to the vehicle's battery.

[0003] Existing charging guns have a resiliently connected lock plate and button. When the gun is inserted into a charging station or vehicle charging port, the lock plate engages and locks with them, preventing the gun from being directly unplugged. Pressing the button drives the lock plate upward, releasing the lock and allowing the gun to be unplugged. To prevent the gun from being directly unplugged during charging, which could cause a safety accident, a self-locking mechanism is usually installed at the bottom of the button to prevent it from being pressed. The self-locking mechanism releases the button only after the gun is fully charged.

[0004] However, in actual use, the operator cannot directly determine by observation whether the self-locking mechanism has released the blockage of the button. At this time, the operator may still press the button during the charging process of the charging gun. On the one hand, there is a safety hazard, and on the other hand, it is easy to cause damage to the self-locking mechanism. Summary of the Invention

[0005] With existing charging guns for new energy vehicles, operators cannot directly determine whether the button on the gun is blocked by the self-locking mechanism by observation. As a result, they may press the button during charging, posing a safety hazard and easily damaging the self-locking mechanism.

[0006] A charging gun for new energy vehicles includes a shell, a lock plate, and a button. The button and the lock plate are elastically connected to the shell. A self-locking mechanism is provided at the bottom of the button. A self-locking shaft is transmission-connected to the self-locking mechanism. A pressure groove is provided on the lock plate. A driven plate extending to one side of the self-locking shaft is provided at the bottom of the button. A driven hole is provided on the driven plate. A driving plate is fixed on the self-locking shaft. A driving head facing the driven hole is provided on one side of the driving plate. A supporting head in contact with the driving plate is also provided below the button. The supporting head is elastically connected to the shell and a pressure plate is movably provided on it. One end of the pressure plate is inserted into the pressure groove, and the other end is fixedly connected to the driving plate in the horizontal direction and movably connected in the vertical direction.

[0007] When the self-locking mechanism does not drive the self-locking shaft to move toward the driven plate, after pressing the button, the button drives the pressure plate to move downward through the support head. After the pressure plate moves downward, it presses downward against the pressure groove, and one end of the lock plate is lifted upward. The charging gun enters the unlocked state and can be directly unplugged. After the self-locking mechanism drives the self-locking shaft to move toward the driven plate, the driving plate drives the pressure plate to move and disengage from the pressure groove. Then the driving head is inserted and presses downward against the driven hole to drive the driven plate and the button to move downward. At this time, the button enters the hidden state, and after pressing it, it still cannot lift one end of the lock plate upward by pressing the pressure plate. The operator knows but cannot press the button to unlock the charging gun.

[0008] Furthermore, a first driving surface extending obliquely is provided in the driven hole, and a second driving surface extending obliquely and matching the first driving surface is provided on the driving head. After the self-locking shaft moves toward the driven plate, the driving head is inserted into the driven hole, and then the first driving surface is abutted by the second driving surface to drive the driven plate and the button to move downward; a vertical plug column extending vertically downward is provided on the driving plate, and a vertical plug hole for vertically and movably inserting the vertical plug column is provided on the pressure plate.

[0009] Furthermore, it also includes a driven block arranged on the inner side of the driven plate, the driven hole is arranged on the driven block, the driven block is provided with a connecting shaft rotatably connected to the driven plate, the connecting shaft is also provided with a fixing plate located on the outside of the shell, and the fixing plate is provided with a fixing member that fixes it to the shell.

[0010] Furthermore, an axis socket is provided below the driven block, and a baffle plate is provided above the driven hole. The fixing part is removed, and the fixing plate is rotated to drive the driven block to rotate until the axis socket is located above the driven hole. After that, when the self-locking shaft moves toward the driven plate, it will eventually be blocked under the baffle plate, so that the button cannot be pressed down. At the same time, the driving head is inserted into the axis socket. At this time, the button will not move down and be hidden, and its function remains the same as that of the button of the existing charging gun.

[0011] Furthermore, the locking plate is elastically connected to the shell through a first spring, and a protective shell is provided on the outside of the self-locking mechanism. A movable socket is provided on the protective shell, and a second spring elastically connected to the support head is provided in the movable socket.

[0012] Furthermore, the self-locking shaft is provided with a square block, and the driving plate is provided with a square hole matching the square block to fixedly connect the self-locking shaft and the driving plate.

[0013] Furthermore, a ring baffle and a vertical slot are provided at the opening of the movable socket, a first limit plate blocked by the ring baffle is provided on the support head, and a second limit plate is provided at both ends of the pressure plate to prevent the pressure plate from detaching from the support head. The pressure plate is inserted into the vertical slot after the support head moves downward.

[0014] Furthermore, a pressure rod located above the support head is provided at the bottom of the button. When the button is pressed, the pressure rod presses the support head to move it downward.

[0015] Furthermore, a push plate elastically connected to the protective shell is provided in the shell, and a push head is provided on the push plate to block one side of the push plate. After the push plate is pushed, the push plate drives the self-locking shaft to move horizontally.

[0016] The present invention proposes a charging gun for new energy vehicles, which has the beneficial effects of: as the self-locking shaft of the self-locking mechanism moves horizontally, the driving plate drives the pressure plate to move horizontally, and at the same time cooperates with the driven hole to make the driven plate move vertically, so that the button moves up and down. When the charging gun is in working state, the button moves down and enters a hidden state. At this time, the operator can directly judge whether the button can be pressed to unlock the charging gun, reducing the possibility of safety hazards. At the same time, it is more intuitive and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the charging gun in the present invention;

[0018] Figure 2 Schematic diagram of the three-dimensional structure of the self-locking mechanism and the locking plate in the present invention;

[0019] Figure 3 Schematic diagram of the three-dimensional structure of the locking plate in the present invention;

[0020] Figure 4 Schematic diagram of the three-dimensional structure of the self-locking mechanism of the present invention;

[0021] Figure 5 Schematic diagram of the split structure of the self-locking mechanism in the present invention;

[0022] Figure 6 Schematic diagram of the three-dimensional structure of the button in the present invention;

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the driven block in the present invention.

[0024] The corresponding relationship between the labels and component names in the figures is as follows:

[0025] 1. Housing; 2. Self-locking mechanism; 3. Button; 4. Drive plate; 5. Support head; 6. Push plate; 11. Gun head; 12. Locking plate; 13. Pressure groove; 14. First spring; 21. Self-locking shaft; 22. Protective shell; 23. Square block; 24. Second spring; 31. Driven plate; 32. Driven block; 33. Driven hole; 34. Shaft socket; 35. First drive surface; 36. Connecting shaft; 37. Fixed plate; 38. Fixing piece; 39. Press rod; 40. Block plate; 41. Drive head; 42. Second drive surface; 43. Square hole; 44. Vertical plug column; 51. Press plate; 52. Movable socket; 53. First limit plate; 54. Second limit plate; 55. Vertical slot; 56. Ring baffle; 57. Vertical socket; 61. Push head. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be clearly and completely described below in conjunction with embodiments.

[0027] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work should fall within the scope of protection of this application.

[0028] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, for the purposes of describing the embodiments of the present application herein.

[0029] In addition, the terms "comprises" and "having" and any variations thereof are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, product or apparatus.

[0030] like Figure 1-Figure 7As shown, it is a preferred embodiment of the present invention, a charging gun for new energy vehicles, including a shell 1 and a gun head 11 located at the end of the shell 1, the shell 1 includes a lock plate 12, a button 3, and a self-locking mechanism 2, the lock plate 12 and the button 3 are elastically connected to the shell 1, the self-locking mechanism 2 is arranged below the button 3, and a self-locking shaft 21 is transmission-connected to the self-locking mechanism 2. The horizontal movement of the self-locking shaft 21 can be controlled by the electronic control system inside the charging gun. On the basis of the above, the lock plate 12 is provided with a pressure groove 13 on the side facing the button 3, and the bottom of the button 3 is provided with a driven plate 31 extending vertically downward to the side above the self-locking shaft 21, and a driven hole 33 is provided on the driven plate 31. A driving plate 4 is fixed on the self-locking shaft 21, and a driving head 41 facing the driven hole 33 is provided on one side of the driving plate 4. A support head 5 is also provided below the button 3, which is in contact with it and elastically connected to the shell 1. A pressure plate 51 is provided on the support head 5 and is movably connected to it in the horizontal direction. One end of the pressure plate 51 is inserted into the pressure groove 13, and the other end is fixedly connected to the driving plate 4 in the horizontal direction and movably connected in the vertical direction.

[0031] During actual use, in the initial state, the charging gun is in an inoperative state. At this time, the self-locking mechanism 2 is in an unlocked state, and the self-locking shaft 21 does not move. After the operator presses the button 3, the button 3 moves downward, driving the support head 5 and the pressure plate 51 to move downward. After the pressure plate 51 moves downward, it presses downward against the pressure groove 13 of the lock plate 12, so that the lock plate 12 moves downward near the pressure groove 13 and the other end is lifted upward, and the charging gun can be freely inserted into the charging pile or the car; after the charging gun enters the working state, the self-locking mechanism 2 inside it also enters the self-locking state accordingly. At this time, the self-locking shaft 21 will move horizontally toward the driven plate 31 At the same time, the drive plate 4 moves along with the self-locking shaft 21, driving the pressure plate 51 to move horizontally and disengage from the pressure groove 13. At the same time, the drive head 41 is inserted into the driven hole 33 and presses downward on the driven hole 33, causing the driven plate 31 and the button 3 to move downward. When the button 3 moves downward, it also presses the support head 5 and the pressure plate 51 downward. After this, on the one hand, after the button 3 moves downward, it enters a hidden state, and the operator can directly determine whether the button 3 can be pressed down at this time. On the other hand, the button 3 cannot press the lock plate 12 downward through the pressure plate 51, that is, the button 3 cannot be pressed to lift the lock plate 12 at this time. After the charging gun is finished working, the self-locking shaft 21 drives the drive plate 4 to move toward the initial position, the drive head 41 disengages from the driven hole 33, and the button 3 moves upward against the support head 5. At the same time, the pressure plate 51 moves along with the drive plate 4 and is inserted into the pressure groove 13.

[0032] like Figure 5 and Figure 7As shown, in this embodiment, a first driving surface 35 extending obliquely is further provided in the driven hole 33, and a second driving surface 42 extending obliquely and matching the first driving surface 35 is further provided on the driving head 41. After the self-locking shaft 21 moves toward the driven plate 31, the driving head 41 is inserted into the driven hole 33, and then the first driving surface 35 is abutted by the second driving surface 42 to drive the driven plate 31 and the button 3 to move downward; further, a vertical plug column 44 extending vertically downward is provided on the driving plate 4, and a vertical plug hole 57 for vertically movable insertion of the vertical plug column 44 is provided on the pressing plate 51, thereby realizing that the driving plate 4 and the pressing plate 51 are fixedly connected in the horizontal direction and move vertically in the vertical direction, that is, the pressing plate 51 can move toward the pressed plate 51 together with the driving plate 4 and the self-locking shaft 21, and will not affect the normal downward movement of the supporting head 5 when the button 3 is pressed.

[0033] like Figure 7 As shown, it further includes a driven block 32 arranged on the inner side of the driven plate 31, the driven hole 33 is arranged on the driven block 32, and the driven block 32 is provided with a connecting shaft 36 rotatably connected to the driven plate 31, and the connecting shaft 36 is also provided with a fixing plate 37 located on the outside of the shell 1, and the fixing plate 37 is threaded with a fixing member 38 that fixes it to the shell 1; a shaft socket 34 is provided below the driven block 32, and a baffle plate 40 is provided above the driven hole 33. After the driven block 32 moves downward, the shaft socket 34 moves downward and is inserted into it by the self-locking shaft 21.

[0034] A prismatic groove of a specific shape is provided on the fixing part 38. After removing the fixing part 38 using a specific tool, the fixing plate 37 can be rotated. After the fixing plate 37 is rotated 180°, the driven block 32 is also rotated 180°, so that the shaft socket 34 is located above the driven hole 33, and the baffle plate 40 is rotated to the bottom. After that, when the self-locking mechanism 2 enters the self-locking state, the self-locking shaft 21 will move toward the driven plate 31 and finally resist under the baffle plate 40, so that the button 3 cannot be pressed downward. At the same time, the driving head 41 is inserted into the shaft socket 34 and will not contact the shaft socket 34. At this time, the button 3 of the charging gun will not enter the hidden state, which is the same as the button 3 of the existing charging gun.

[0035] like Figure 4 and Figure 5As shown, further, the locking plate 12 is elastically connected to the shell 1 through the first spring 14, and a protective shell 22 is also provided on the outside of the self-locking mechanism 2, and a movable socket 52 is provided on the protective shell 22, and a second spring 24 elastically connected to the support head 5 is provided in the movable socket 52; an annular baffle 56 and a vertical slot 55 are provided at the opening of the movable socket 52, and a first limit plate 53 blocked by the annular baffle 56 is provided on the support head 5, and a second limit plate 54 is provided at both ends of the pressure plate 51 to prevent the pressure plate 51 from detaching from the support head 5, and the pressure plate 51 is inserted into the vertical slot 55 after moving down with the support head 5.

[0036] like Figure 6 As shown, in this embodiment, a pressure rod 39 is provided at the bottom of the button 3 and is located above the support head 5. After the button 3 is pressed, the pressure rod 39 presses the support head 5 to move it downward; a square block 23 is provided on the self-locking shaft 21, and a square hole 43 matching the square block 23 is provided on the drive plate 4 to fixedly connect the self-locking shaft 21 and the drive plate 4. Furthermore, a push plate 6 elastically connected to the protective shell 22 is also provided in the shell 1, and a push head 61 is provided on the push plate 6 to block one side of the push plate 6. After the push plate 6 is manually pushed, the push head 61 directly pushes the self-locking shaft 21 to return to its initial position.

[0037] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A charging gun for a new energy vehicle, comprising a housing (1), a locking plate (12), and a button (3), wherein the button (3) and the locking plate (12) are elastically connected to the housing (1), a self-locking mechanism (2) is provided at the bottom of the button (3), and a self-locking shaft (21) is connected to the self-locking mechanism (2), and the characteristics are: The lock plate (12) is provided with a pressure groove (13), the bottom of the button (3) is provided with a driven plate (31) extending to one side of the self-locking shaft (21), the driven plate (31) is provided with a driven hole (33), a driving plate (4) is fixedly provided on the self-locking shaft (21), a driving head (41) facing the driven hole (33) is provided on one side of the driving plate (4), and a supporting head (5) in contact with the button (3) is further provided below the button (3), the supporting head (5) is elastically connected to the housing (1) and a pressure plate (51) is movably provided on the supporting head (5), one end of the pressure plate (51) is inserted into the pressure groove (13), and the other end is in contact with the self-locking shaft (21). The driving plate (4) is fixedly connected in the horizontal direction and movably connected in the vertical direction. After pressing the button (3), the button (3) drives the pressure plate (51) to move downward through the support head (5). After the pressure plate (51) moves downward, it presses downward against the pressure groove (13). One end of the locking plate (12) is lifted upward. After the self-locking mechanism (2) drives the self-locking shaft (21) to move toward the driven plate (31), the driving plate (4) drives the pressure plate (51) to move and disengage from the pressure groove (13). Then, the driving head (41) is inserted into and presses downward against the driven hole (33) to drive the driven plate (31) and the button (3) to move downward. A first driving surface (35) extending obliquely is further provided in the driven hole (33), and a second driving surface (42) extending obliquely and matching the first driving surface (35) is further provided on the driving head (41). After the self-locking shaft (21) moves toward the driven plate (31), the driving head (41) is inserted into the driven hole (33), and then the first driving surface (35) is abutted by the second driving surface (42) to drive the driven plate (31) and the button (3) to move downward; a vertical plug column (44) extending vertically downward is provided on the driving plate (4), and a vertical plug hole (57) for the vertical plug column (44) to be vertically inserted is provided on the pressing plate (51).

2. The charging gun according to claim 1, characterized in that: The invention also includes a driven block (32) provided on the inner side of the driven plate (31), the driven hole (33) being provided on the driven block (32), the driven block (32) being provided with a connecting shaft (36) rotatably connected to the driven plate (31), the connecting shaft (36) being provided with a fixing plate (37) located outside the housing (1), the fixing plate (37) being provided with a fixing member (38) fixedly connected to the housing (1).

3. The charging gun according to claim 2, characterized in that: A shaft socket (34) is provided below the driven block (32), and a baffle plate (40) is provided above the driven hole (33). The fixing member (38) is removed, and the fixing plate (37) is rotated to drive the driven block (32) to rotate until the shaft socket (34) is located above the driven hole (33). Thereafter, when the self-locking shaft (21) moves toward the driven plate (31), it will eventually be blocked below the baffle plate (40), so that the button (3) cannot be pressed downward, and at the same time, the driving head (41) is inserted into the shaft socket (34).

4. The charging gun according to claim 3, characterized in that: The locking plate (12) is elastically connected to the housing (1) via a first spring (14), and a protective shell (22) is further provided on the outside of the self-locking mechanism (2). A movable socket (52) is provided on the protective shell (22), and a second spring (24) elastically connected to the support head (5) is provided in the movable socket (52).

5. The charging gun according to claim 1, characterized in that: The self-locking shaft (21) is provided with a square block (23), and the driving plate (4) is provided with a square hole (43) matching the square block (23) to fixedly connect the self-locking shaft (21) and the driving plate (4).

6. The charging gun according to claim 4, characterized in that: The opening of the movable socket (52) is provided with a ring baffle (56) and a vertical slot (55); the support head (5) is provided with a first limit plate (53) blocked by the ring baffle (56); both ends of the pressure plate (51) are provided with second limit plates (54) to prevent the pressure plate (51) from detaching from the support head (5); the pressure plate (51) is inserted into the vertical slot (55) after the support head (5) moves downward.

7. The charging gun according to claim 1, characterized in that: A pressure rod (39) located above the support head (5) is provided at the bottom of the button (3). When the button (3) is pressed, the pressure rod (39) presses the support head (5) to move it downward.

8. The charging gun according to claim 4, characterized in that: A push plate (6) elastically connected to the protective shell (22) is further provided in the housing (1), and a push head (61) is provided on the push plate (6) to block one side of the push plate (6).

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