False touch prevention protection mechanism of charging gun and charging socket plugging assembly

Abstract

The invention discloses a mistaken touch prevention protection mechanism of a charging gun and charging socket plugging assembly, which comprises a charging gun and a charging socket, the charging gun comprises a gun head and a plurality of hollow plugging columns, the front ends of the hollow plugging columns are provided with jacks, female terminals are arranged in the hollow plugging columns, and the charging socket is provided with male terminals corresponding to the female terminals; the socket is characterized in that a rotary locking mechanism is installed on an insertion hole in the front end of each hollow insertion column, each rotary locking mechanism is provided with a protective cap with a hole, a plurality of hollowed-out grooves are formed in the upper ring of each protective cap at equal intervals in the circumferential direction, rotary baffles and elastic elements used for resisting rotation of the rotary baffles are installed in the hollowed-out grooves, and the rotary baffles are closed under the action of elastic force to shield the insertion holes. Each rotary baffle is provided with a stress part protruding out of the outer side of the hollow groove; the charging socket is provided with jacking pipes which correspond to the rotary locking mechanisms and are aligned with the stress parts of the rotary locking mechanisms, and the jacking pipes are used for providing pushing force to force the rotary baffles to overcome the elastic force to rotate so as to be mutually dispersed, and avoiding positions for male terminals to be inserted into the jacks are formed. According to the invention, tighter mistaken touch prevention protection can be provided, and the operation is convenient.

Description

Technical Field

[0001] The present invention relates to an anti-mis-touch protection mechanism for a charging gun and a charging socket plug-in assembly. Background Art

[0002] Generally, the charging plug-in assembly of new energy vehicles mainly includes a charging socket provided on the vehicle body and a matching charging gun. A plurality of hollow plug posts with jacks opened at the front ends are fixed on the inner side panel of the gun head opening of the charging gun. A female terminal is provided inside the hollow plug post, and a plurality of male terminals are provided on the charging socket corresponding to each female terminal. When the outer shells of the charging gun and the charging socket are aligned and plugged together, the male terminals are inserted into the hollow plug posts to contact and conduct electricity with the female terminals.

[0003] With the continuous development of new energy vehicle charging technology, higher and higher requirements are put forward for the design and use safety of its charging plug-in assembly. At present, in the industry, in addition to the conventional waterproof and discharge function requirements for the above-mentioned charging plug-in assembly, it is particularly important to add a design for the anti-mis-touch protection mechanism of the charging gun, that is, to prevent the female terminals inside the hollow plug posts of the charging gun from being accidentally touched by people using metal objects and being damaged or causing danger, especially to prevent children from performing the above actions. For products exported to European and American countries, their protection standards often have higher and more stringent requirements. The plugging gap tolerance between each jack and the male terminal needs to be limited from 12 mm to 1 mm, so as to completely prevent the accidental touch of each jack on the charging gun.

[0004] The existing anti-mis-touch protection mechanism of the charging plug-in assembly usually includes two parts. One part is a locking mechanism provided on the charging gun, and the other part is a triggering mechanism provided on the charging socket for driving the locking mechanism to act. However, the anti-mis-touch protection mechanisms of the charging plug-in assemblies produced in the domestic industry at present often do not meet the above protection requirements, and the reasons are shown in the following two aspects: 1. The existing charging guns often set an integral locking mechanism at the front end of the gun head shell to prevent the accidental touch of the male terminals inside the jacks of the charging gun. However, the disadvantage is that if the integral locking mechanism is accidentally opened or damaged, there is a risk of accidental touch of each jack with an internal male terminal, and it cannot meet the higher European protection standards.

[0005] 2. After the gun head of the charging gun and the outer shell of the charging socket are aligned and plugged together, according to the different mechanical composition principles of the existing anti-mis-touch protection mechanism, it is also necessary to press, rotate and other ways to force the locking mechanism to open. Not only is the mechanism complex, with many components, but also the operation is inconvenient. Especially for multiple jacks on the charging gun, if this kind of anti-mis-touch protection mechanism is adopted for all of them, it will greatly increase the assembly complexity, increase the volume of the charging gun, and increase the production cost. Summary of the Invention

[0006] The object of the present invention is to overcome the above problems existing in the prior art, and to provide an anti-misoperation protection mechanism for a charging gun and a charging socket plug-in assembly, which can ensure that each jack of the built-in female terminal on the charging gun has better protection effect, and has a compact structure, smaller volume, is convenient for operation, and the overall design and manufacturing cost is lower.

[0007] The technical solution of the present invention is: an anti-misoperation protection mechanism for a charging gun and a charging socket plug-in assembly, including a charging gun and a charging socket. The charging gun includes a gun head and a plurality of hollow plug posts with jacks opened at the front end arranged thereon. A female terminal is arranged inside the hollow plug post, and a male terminal corresponding to the female terminal one by one is arranged on the charging socket; It is characterized in that: a rotary locking mechanism is installed on the jack at the front end of each hollow plug post. This rotary locking mechanism includes a protective cap fixed to the front end of the hollow plug post. A through hole opposite to the jack is opened on the front wall of the protective cap. A plurality of hollow slots are arranged in the circumferential direction of the protective cap. A rotary baffle capable of rotating around a rotating shaft and an elastic element for resisting the rotation of the rotary baffle are assembled in each hollow slot. Under the elastic force of the elastic element, these rotary baffles are closed in the through hole to block the jack. At the same time, each rotary baffle has a stress part protruding outside the hollow slot; A triggering mechanism is arranged on the charging socket corresponding to each rotary locking mechanism. Each triggering mechanism includes a top pipe arranged around the corresponding male terminal. The top pipe is opposite to the stress parts on all the rotary baffles of the corresponding rotary locking mechanism, and is used to provide a thrust to the stress part to make the rotary baffle rotate against the elastic force of the elastic element and spread apart from each other, so as to form an avoidance position for the male terminal to insert into the jack.

[0008] Further, in the present invention, the elastic element is a torsion spring sleeved on the rotating shaft.

[0009] Furthermore, in the present invention, a positioning cavity for accommodating the torsion spring is formed on the rotary baffle corresponding to each torsion spring. One end of the torsion spring abuts against the inner wall of the positioning cavity, and a step groove or a convex block for correspondingly cooperating with each positioning cavity to abut against the other end of the torsion spring is arranged on the protective cap.

[0010] Further, in the present invention, the elastic element can also be a compression spring or a compression spring piece or a special-shaped spring abutted between the rotary baffle and the protective cap.

[0011] Furthermore, when the elastic element is a compression spring or a compression spring piece or a special-shaped spring, a baffle card slot is arranged on the rotary baffle for clamping one end of the elastic element, or one end of the elastic element is directly injection-molded and fixed on the rotary baffle; and a protective cap card slot is arranged on the protective cap for clamping the other end of the elastic element, or the other end of the elastic element is directly injection-molded and fixed on the protective cap.

[0012] Further, in the present invention, the hollow slots are equidistantly arranged in the circumferential direction of the protective cap, and the rotating baffle is centrally symmetrically distributed with the center of the through hole as the center of symmetry.

[0013] Further, in the present invention, a plurality of radially inwardly protruding clamping blocks are formed on the inner circumference of the jack of the hollow plug post, and a plurality of connecting elastic pieces corresponding to the clamping blocks one by one extend from the rear end of the protective cap. A clamping hole for the clamping block to be inserted is provided on the connecting elastic piece; alternatively, a plurality of clamping holes are formed on the inner circumference of the jack of the hollow plug post, and a plurality of connecting elastic pieces corresponding to the clamping holes one by one extend from the rear end of the protective cap. A clamping block that protrudes radially inwardly or outwardly and is used to be inserted into the corresponding clamping hole is provided on the connecting elastic piece.

[0014] Further, in the present invention, an inclined surface for bearing the thrust of the jacking pipe is provided on the force-bearing portion of the rotating baffle.

[0015] Further, in the present invention, plug post rotation shaft positioning holes for inserting and fixing the rotating shaft are distributed on the peripheral end walls around the jack of the hollow plug post, and a hollow slot rotation shaft positioning hole for the rotating shaft to penetrate through the hollow slot is provided on the protective cap opposite to the rotation shaft positioning hole.

[0016] Further, for the convenience of assembling the rotating baffle in the present invention, the protective cap can adopt a split structure and is formed by connecting a front cap and a rear cap cylinder. The through hole is provided on the cap, and a plurality of connecting arms with reverse buckles extending backward are provided at intervals along the circumference on the cap. A buckle groove for cooperating and fixing with the reverse buckles on each connecting arm is provided on the outer circumference of the cap cylinder. And a gap is left between the front end wall of the cap cylinder after the cap is connected to the cap cylinder. This gap is divided into a plurality of the hollow slots by the connecting arms; the rotating shaft is fixed on the front end wall of the cap cylinder.

[0017] Furthermore, in the present invention, a plurality of support arms extending backward are provided at intervals along the circumference on the cap for supporting against the front end wall of the cap cylinder to enhance the supporting force for the cap.

[0018] Furthermore, when the rotating baffles are closed, the heads of the rotating baffles are sequentially abutted along the circumference; and an arc convex portion and a concave portion matching the shape of the arc convex portion are provided on the head of each rotating baffle. When the rotating baffles are all closed, the arc convex portion on each rotating baffle cooperates with the concave portion on the adjacent rotating baffle, and the concave portion on each rotating baffle cooperates with the arc convex portion on the adjacent rotating baffle. This structural design ensures that the protection against external force intrusion can be increased when the rotating baffles are closed.

[0019] The advantages of adopting the technical solution of the present invention are as follows: 1. Compared with the prior art, the present invention installs a rotary locking mechanism on the jack at the front end of each hollow plug of the charging gun. This rotary locking mechanism can only be opened by means of the triggering mechanism of the charging socket, which can provide more rigorous and effective anti-misoperation protection for each female terminal, preventing it from being easily exposed and damaged or causing danger due to accidental contact by human using metal objects, especially being able to well prevent children from performing the above actions, thereby further improving the protection level and use safety of such charging guns and charging socket assemblies, and being able to meet the relatively high European protection standards.

[0020] 2. Compared with the prior art, the opening of the rotary locking mechanism in the anti-misoperation protection mechanism of the present invention can be completed only by the alignment and insertion of the gun head of the charging gun and the charging socket, without the need to force the locking mechanism to open by means of pressing or rotating with the help of complex mechanisms. It is not only convenient to operate, has high execution reliability, but also has a simple mechanism, a compact structure, and few components. In particular, it is suitable for the current design of charging guns with multiple female terminal jacks, greatly reducing the assembly difficulty, not increasing the axial and radial dimensions of the charging gun, having a smaller volume, and a lower overall design and manufacturing cost.

[0021] 3. In the rotary locking mechanism of the present invention, elastic elements are designed to oppose the rotation of the rotary baffle. These elastic elements can provide an elastic force to drive the rotary baffle to close in the through hole. This design ensures that after charging is completed, the user only needs to pull out the charging gun, and the rotary locking mechanism can automatically lock, making the operation more labor-saving.

[0022] The objectives, advantages and features of the present invention will be illustrated and explained by the following non-limiting description of the preferred embodiments, which are given only as examples with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a sectional view of the non-connected state of the charging gun and the charging socket in the present invention (the rotary locking mechanism is in the locked state); Figure 2 is a sectional view of the connected state of the charging gun and the charging socket in the present invention (the rotary locking mechanism is in the open state); Figure 3 is a three-dimensional structural schematic diagram of the separated state of the front part of the charging gun in the present invention with the rotary locking mechanism disengaged; Figure 4 is a single three-dimensional structural schematic diagram of the front part of the gun head of the charging gun in the present invention; Figure 5 is a single side view of the protective cap in the present invention; Figure 6 is a sectional view of the protective cap in the present invention; Figure 7 is a rear view of the protective cap in the present invention; Figure 8It is a schematic diagram of the three-dimensional structure of the rotating baffle in the present invention; Figure 9 It is a schematic diagram of the three-dimensional structure of the rotating baffle in the present invention from another angle; Figure 10 A front view of the charging gun in the locked state of the rotary locking mechanism of the present invention; Figure 11 for Figure 10 Rear view of the central rotation locking mechanism; Figure 12 A front view of the charging gun in the present invention with the rotary locking mechanism in an open state; Figure 13 for Figure 12 Rear view of the central rotation locking mechanism; Figure 14 It is a schematic diagram of the three-dimensional structure of another embodiment of the present invention, in which the front rotary locking mechanism of the charging gun is disengaged and disassembled; Figure 15 for Figure 14 Schematic diagram of the three-dimensional structure of the middle cap alone; Figure 16 for Figure 14 Schematic diagram of the three-dimensional structure of the middle cap tube alone; Figure 17 for Figure 14 Schematic diagram of the three-dimensional structure of the middle rotating baffle; Figure 18 for Figure 14 A schematic diagram of the three-dimensional structure of the central rotating baffle from another angle; Figure 19 for Figure 14 An enlarged view of the three rotating baffles in the closed state.

[0024] The meanings of the reference numerals in the figures are as follows: 1. Charging gun; 101. Gun head; 102. Hollow plug; 102a. Socket; 102b. Block; 102c. Plug shaft positioning hole; 2. Charging socket; 3. Female terminal; 4. Male terminal; 5. Protective cap; 501. Through hole; 502. Hollow groove; 503. Step groove; 504. Connecting spring; 504a. Block hole; 505. Hollow groove shaft positioning hole; 506. Protective cap block slot; 5A. Cap; 5B. Cap barrel; 6. Rotating shaft; 7. Rotating baffle; 701. Force-bearing part; 701a. Inclined surface; 702. Positioning cavity; 703. Arc-shaped convex part; 704. Inner concave part; 8. Top tube; 9. Torsion spring; 10. Special-shaped spring; 11. Connecting arm; 11a. Undercut; 12. Buckle slot; 13. Support arm. DETAILED DESCRIPTION

[0025] Example 1: Combination Figures 1 - 11As shown, a specific embodiment of the anti-misoperation protection mechanism for the plugging and unplugging assembly of the charging gun and the charging socket provided by the present invention will be described in detail as follows: First, in combination with Figure 1 and Figure 2 As shown, like the conventional technology, it has a charging gun 1 and a charging socket 2. The charging gun 1 has a gun head 101 and four hollow plug posts 102 with jacks 102a opened at the front ends thereof. A female terminal 3 is provided inside the hollow plug post 102, and male terminals 4 corresponding to the female terminals 3 one by one are provided on the charging socket 2.

[0026] The core improvement of the present invention lies in that: a rotary locking mechanism is installed on the jack 102a at the front end of each hollow plug post 102. This rotary locking mechanism is jointly composed of a protective cap 5, a rotating shaft 6, three rotating baffles 7 and a torsion spring 9. Specifically, in combination with Figures 3 - 7 As shown, the protective cap 5 is fixed to the front end of the hollow plug post 102. A through hole 501 opposite to the jack 102a is opened on the front wall of the protective cap 5. Three hollow grooves 502 are provided in the circumferential direction of the protective cap 5. A rotating baffle 7 that can rotate around the rotating shaft 6 and a torsion spring 9 sleeved on the rotating shaft 6 for counteracting the rotation of the rotating baffle 7 are assembled in each hollow groove 502. Under the elastic force of the torsion spring 9, these rotating baffles 7 are closed in the through hole 501 to block the jack 102a. At the same time, each rotating baffle 7 has a force-receiving part 701 protruding outside the hollow groove 502. Specifically, as shown in Figure 10 and Figure 11 As shown. And in this embodiment, the hollow grooves 502 are equally spaced in the circumferential direction of the protective cap 5, and the rotating baffles 7 are centrosymmetrically distributed with the center of the through hole 501 as the center of symmetry.

[0027] Then, in combination with Figure 1 and Figure 2 As shown, a triggering mechanism is provided on the charging socket 2 corresponding to each rotary locking mechanism. Each triggering mechanism is a top pipe 8 provided outside the corresponding male terminal 4. The top pipe 8 faces the force-receiving parts 701 on all the rotating baffles 7 of the corresponding rotary locking mechanism, and is used to provide a thrust to the force-receiving part 701 to make the rotating baffle 7 rotate and disperse from each other against the elastic force of the torsion spring 9, so as to form an avoidance position for the male terminal 4 to insert into the jack 102a, as shown in Figure 12 and Figure 13 As shown.

[0028] Furthermore, in combination with Figures 6 - 9 As shown, in this embodiment, a positioning cavity 702 for accommodating the torsion spring 9 is formed on the corresponding rotating baffle 7 for each torsion spring 9. One end of the torsion spring 9 abuts against the inner wall of the positioning cavity 702, and a step groove 503 corresponding to each positioning cavity 702 is provided on the protective cap 5 to abut against the other end of the torsion spring 9.

[0029] And specifically, asFigure 8 As shown in Figure 8 , on the force - receiving part 701 of the rotary baffle 7 in this embodiment, there is an inclined surface 701a for bearing the thrust of the jacking pipe 8. The inclined surface 701a facilitates better conversion of the thrust of the jacking pipe 8 into the extrusion force that drives the rotary baffle 7 to rotate, making the process smoother.

[0030] Combined with Figures 3 - 6 As shown in Figures 3 - 6 , in this embodiment, four radially inward - protruding blocks 102b are formed at equal intervals on the inner circumference of the insertion hole 102a of the hollow insertion post 102. And at the rear end of the protective cap 5, four connecting elastic pieces 504 corresponding to the blocks 102b are extended. On the connecting elastic pieces 504, there are card holes 504a for the blocks 102b to be inserted into.

[0031] Combined with Figure 3 and Figure 4 As shown in Figure 3 and Figure 4 , in this embodiment, on the peripheral end walls around the insertion hole 102a of the hollow insertion post 102, there are insertion - post rotating - shaft positioning holes 102c for inserting and fixing the rotating shaft 6. And on the protective cap 5, there is a hollow - slot rotating - shaft positioning hole 505 opposite to the rotating - shaft positioning hole 102c for the rotating shaft 6 to penetrate through the hollow slot 502. During actual assembly, one end of the rotating shaft 6 is fixed in the insertion - post rotating - shaft positioning hole 102c, and the other end is inserted into the hollow slot 502 through the hollow - slot rotating - shaft positioning hole 505 and penetrates through the rotary baffle 7, thus completing the rotational assembly of the rotary baffle 7.

[0032] As Figure 1 、 Figure 10 and Figure 11 As shown in Figure 1 , Figure 10 and Figure 11 , in the present invention, when the charging gun 1 and the charging socket 2 are not plugged in, all the rotary locking mechanisms on the charging gun 1 are in the locked state. Specifically, each rotary baffle 7 is closed in the through - hole 501 under the elastic force of the torsion spring 9 to block the insertion hole 102a, so that the male terminal 4 on the charging socket 2 cannot be inserted into the hollow insertion post 102 to cooperate with the female terminal 3.

[0033] As Figure 2 、 Figure 12 and Figure 13 As shown in Figure 2 , Figure 12 and Figure 13 , when the charging gun 1 and the charging socket 2 are plugged in, all the rotary locking mechanisms on the charging gun 1 are in the open state. Specifically, the jacking pipe 8 around the corresponding female terminal 3 on the charging socket 2 is opposite to the force - receiving parts 701 on all the rotary baffles 7 of the corresponding rotary locking mechanism, so as to provide thrust to the force - receiving part 701 to make the rotary baffle 7 rotate and disperse from each other against the elastic force of the torsion spring 9, thereby forming an avoidance position for the male terminal 4 to be inserted into the insertion hole 102a, so that the male terminal 4 can cooperate with the female terminal 3.

[0034] Embodiment 2: Further combined with Figures 14 - 19The following shows another specific embodiment of the anti-misoperation protection mechanism of the plugging component of the charging gun and the charging socket of the present invention. Its overall structure is basically the same as that of Embodiment 1, except for the structural changes in the protection cap 5, the rotating baffle 7, and the elastic element. The following is a detailed description: As Figure 14 shown, this embodiment also has a charging gun 1 and a charging socket 2. The charging gun 1 has a gun head 101 and four hollow plug posts 102 with jacks 102a opened at the front ends arranged thereon. A female terminal 3 is provided inside the hollow plug post 102, and male terminals 4 corresponding to the female terminals 3 one by one are provided on the charging socket 2. A rotary locking mechanism is installed on the jack 102a at the front end of each hollow plug post 102. This rotary locking mechanism is jointly composed of a protection cap 5, a rotating shaft 6, three rotating baffles 7, and a special-shaped spring 10.

[0035] Further combining Figure 15 and Figure 16 shown, in this embodiment, the protection cap 5 has a split structure, which is formed by connecting a front cap 5A and a rear cap cylinder 5B. A through hole 501 opposite to the jack 102a is provided on the cap 5A. Three connecting arms 11 with buckles 11a extending backward are evenly spaced along the circumference on the cap 5A, and buckle grooves 12 for cooperating with the buckles 11a on each connecting arm 11 are provided on the outer circumference of the cap cylinder 5B. And after the cap 5A is connected to the cap cylinder 5B, a gap is left between the cap 5A and the front wall of the cap cylinder 5B, and this gap is equally divided into three hollow slots 502 by the three connecting arms 11 (see Figure 3 and Figure 5 shown). Three rotating shafts 6 are evenly spaced along the circumference and fixed on the front wall of the cap cylinder 5B, and respectively extend into the three hollow slots 502 for assembling the corresponding rotating baffles 7.

[0036] Moreover, in this embodiment, three support arms 13 extending backward at equal intervals along the circumference are also provided on the cap 5A for abutting against the front wall of the cap cylinder 5B to enhance the supporting force for the cap 5A. Although the hollow slot 502 is further divided by the support arms 13, since the actual rotation amplitude of the rotating baffle 7 around the rotating shaft 6 in the hollow slot 502 is very small, the support arms 13 do not interfere with the rotation of the rotating baffle 7.

[0037] Same as Embodiment 1, four radially inwardly protruding blocks 102b are formed at equal intervals on the inner circumference of the jack 102a of the hollow plug post 102, and four connecting elastic pieces 504 corresponding to the blocks 102b one by one extend from the rear end of the cap cylinder 5B of the protection cap 5. Card holes 504a for the blocks 102b to be inserted into are provided on the connecting elastic pieces 504.

[0038] Further combining Figure 17 and 18As shown, in this embodiment, the elastic element used to counter the rotation of the rotating baffle 7 is a special-shaped spring 10. The special-shaped spring 10 is a section of spring rod. One end of it is bent and then directly injection-molded and fixed on the rotating baffle 7, while the other end is bent and clamped and fixed in the protective cap slot 506 provided on the end face of the cap cylinder 5B. The working principle of the torsion spring 9 in Embodiment 1 is the same. Under the elastic force of the special-shaped spring 10, these rotating baffles 7 are closed in the through hole 501 to block the jack 102a. At the same time, each rotating baffle 7 has a force-receiving part 701 protruding outside the hollow groove 502, and an inclined surface 701a for bearing the thrust of the top pipe 8 around the male terminal 4 is provided on the force-receiving part 701. Figure 1 and Figure 2 in the public terminal 4.

[0039] Combined with Figure 19 As shown, in this embodiment, the three rotating baffles 7 are centrosymmetrically distributed with the center of the through hole 501 as the center of symmetry. When the rotating baffles 7 are closed, the heads of the rotating baffles 7 are sequentially abutted along the circumference; and an arc-shaped convex part 703 and a concave part 704 matching the shape of the arc-shaped convex part 703 are provided on the head of each rotating baffle 7. When the rotating baffles 7 are all closed, the arc-shaped convex part 703 on each rotating baffle 7 cooperates with the concave part 704 on the adjacent rotating baffle 7, and the concave part 704 on each rotating baffle 7 cooperates with the arc-shaped convex part 703 on the adjacent rotating baffle 7. This structural design ensures that the protection against external force intrusion can be increased when the rotating baffles 7 are closed.

[0040] For the rest of the structure and working principle in this embodiment, reference can be made to Embodiment 1.

[0041] Of course, the above are only specific application examples of the present invention and do not constitute any limitation to the protection scope of the present invention. In addition to the above embodiments, the present invention can also have other implementation manners. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A protection mechanism for preventing accidental touch of a charging gun and a charging socket connector assembly, comprising a charging gun (1) and a charging socket (2), wherein the charging gun (1) comprises a gun head (101) and a plurality of hollow plug posts (102) with plug holes (102a) provided at the front end thereof, wherein a female terminal (3) is provided inside the hollow plug post (102), and the charging socket (2) is provided with a male terminal (4) corresponding to the female terminal (3) in a one-to-one manner; Features: A rotational locking mechanism is installed on the insertion hole (102a) at the front end of each hollow plug post (102), and the rotational locking mechanism comprises a protective cap (5) fixed to the front end of the hollow plug post (102), a through hole (501) opposite to the insertion hole (102a) is opened on the front wall of the protective cap (5), and a plurality of hollow grooves (502) are arranged in the circumferential direction of the protective cap (5), and each hollow groove (502) is equipped with a rotating baffle (7) that can rotate around the rotating shaft (6), and an elastic element for resisting the rotation of the rotating baffle (7), and the rotating baffles (7) are closed in the through hole (501) under the elastic force of the elastic element to cover the insertion hole (102a), and each rotating baffle (7) has a force-bearing portion (701) protruding from the outside of the hollow groove (502); A trigger mechanism is provided on the charging socket (2) corresponding to each rotary locking mechanism. Each trigger mechanism comprises a top tube (8) provided on the periphery of the corresponding male terminal (4). The top tube (8) is opposite to the force-bearing portion (701) on all the rotary baffles (7) of the corresponding rotary locking mechanism, and is used to provide a thrust to the force-bearing portion (701) so that the rotary baffles (7) overcome the elastic force of the elastic element and rotate to spread apart from each other, thereby forming an avoidance position for the male terminal (4) to be inserted into the socket (102a).

2. The anti-accidental touch protection mechanism of the charging gun and the charging socket connector assembly according to claim 1 is characterized in that The elastic element is a torsion spring (9) sleeved on the rotating shaft (6).

3. The anti-accidental touch protection mechanism of the charging gun and charging socket connector assembly according to claim 2 is characterized in that The rotating baffle (7) is formed with a positioning cavity (702) corresponding to each torsion spring (9) for accommodating the torsion spring (9), one end of the torsion spring (9) is abutted against the inner wall of the positioning cavity (702), and the protective cap (5) is provided with a stepped groove (503) or a protrusion corresponding to each positioning cavity (702) for abutting against the other end of the torsion spring (9).

4. The anti-accidental touch protection mechanism of the charging gun and charging socket connector assembly according to claim 1, characterized in that The elastic element is a compression spring or a compression spring sheet or a special-shaped spring (10) disposed between the rotating baffle (7) and the protective cap (5).

5. The anti-accidental touch protection mechanism of the charging gun and the charging socket connector assembly according to claim 4, characterized in that The rotating baffle (7) is provided with a baffle slot for fixing one end of the elastic element, or one end of the elastic element is directly injection-molded and fixed to the rotating baffle (7); and the protective cap (5) is provided with a protective cap slot (506) for fixing the other end of the elastic element, or the other end of the elastic element is directly injection-molded and fixed to the protective cap (5).

6. The anti-accidental touch protection mechanism of the charging gun and charging socket connector assembly according to claim 1, characterized in that The hollow grooves (502) are arranged at equal intervals in the circumferential direction of the protective cap (5), and the rotating baffles (7) are centrally symmetrically distributed with the center of the through hole (501) as the symmetry center.

7. The anti-accidental touch protection mechanism of the charging gun and charging socket connector assembly according to claim 1, characterized in that The inner circumference of the insertion hole (102a) of the hollow plug post (102) is formed with a plurality of radially inwardly protruding blocks (102b), and the rear end of the protective cap (5) is extended with a plurality of connecting spring sheets (504) corresponding to the blocks (102b), and the connecting spring sheets (504) are provided with a clamping hole (504a) for the clamping block (102b) to be clamped into; or the inner circumference of the insertion hole (102a) of the hollow plug post (102) is formed with a plurality of clamping holes, and the rear end of the protective cap (5) is extended with a plurality of connecting spring sheets (504) corresponding to the clamping holes, and the connecting spring sheets (504) are provided with a radially inwardly or outwardly protruding clamping block for clamping into the corresponding clamping hole.

8. The anti-accidental touch protection mechanism of the charging gun and charging socket connector assembly according to claim 1, characterized in that The force-bearing portion (701) of the rotating baffle (7) is provided with an inclined surface (701a) for bearing the thrust of the jacking pipe (8).

9. The anti-accidental touch protection mechanism of the charging gun and charging socket connector assembly according to claim 1, characterized in that The insertion hole (102a) of the hollow insertion column (102) is provided with insertion column shaft positioning holes (102c) for inserting and fixing the shaft (6), and the protective cap (5) is provided with a hollow groove shaft positioning hole (505) opposite to the shaft positioning hole (102c) for the shaft (6) to pass through the hollow groove (502).

10. The anti-accidental touch protection mechanism of the charging gun and the charging socket connector assembly according to any one of claims 2 to 8, characterized in that The protective cap (5) is a split structure, which is formed by connecting a front cap (5A) and a rear cap barrel (5B). The cap (5A) is provided with the through hole (501), and a plurality of connecting arms (11) with undercuts (11a) extending toward the rear end are provided at intervals along the circumference of the cap (5A), and buckle grooves (12) are provided on the outer circumference of the cap barrel (5B) to be matched and fixed with the undercuts (11a) on each connecting arm (11). After the cap (5A) is connected to the cap barrel (5B), a gap is left between the cap (5A) and the front end wall of the cap barrel (5B), and the gap is divided into a plurality of hollow grooves (502) by the connecting arms (11); the rotating shaft (6) is fixed on the front end wall of the cap barrel (5B).

11. The anti-accidental touch protection mechanism of the charging gun and charging socket connector assembly according to claim 10, characterized in that The cap (5A) is provided with a plurality of support arms (13) extending toward the rear end at intervals along the circumference, and is used to support the front end wall of the cap barrel (5B).

12. The anti-accidental touch protection mechanism of the charging gun and charging socket connector assembly according to claim 6, characterized in that When the rotating baffles (7) are closed, the heads of the rotating baffles (7) are abutted in sequence along the circumference; and the head of each rotating baffle (7) is provided with an arc-shaped convex portion (703) and an inner concave portion (704) matching the shape of the arc-shaped convex portion (703); when the rotating baffles (7) are closed, the arc-shaped convex portion (703) on each rotating baffle (7) cooperates with the inner concave portion (704) on an adjacent rotating baffle (7), and the inner concave portion (704) on each rotating baffle (7) cooperates with the arc-shaped convex portion (703) on an adjacent rotating baffle (7).

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