Rainproof charging gun shell and charging gun

Abstract

This utility model discloses a rainproof charging gun housing and a charging gun. The rainproof charging gun housing includes a gun shell and a gun cover. The gun cover covers the upper end of the gun shell and cooperates with the gun shell to form a receiving cavity. A mechanical locking hook and a micro switch are provided in the receiving cavity. A drain hole communicating with the receiving cavity is provided on the side of the gun shell. The height of the drain hole is lower than the height of the lower end face of the micro switch. The advantage is that it prevents rainwater from accumulating in the receiving cavity and affecting the normal use of the micro switch, thus helping to extend its service life.

Description

Technical Field

[0001] This utility model belongs to the field of charging equipment technology, and in particular relates to a rainproof charging gun housing and charging gun. Background Technology

[0002] A charging gun is a tool used to charge electric vehicles. Existing charging guns are generally equipped with a mechanical locking hook, which locks with the charging socket of the electric vehicle to ensure a stable connection between the charging gun and the charging socket during the charging process.

[0003] For example, a charging gun disclosed in application number CN202223567584X includes a charging gun body and a locking component. The charging gun body includes a gun body and a gun cover that overlap each other to form a receiving cavity. The gun cover includes a cover plate, a side plate, and a buckle disposed on the side plate. The side plate is arranged around the circumference of the cover plate. The side plate is inserted into the receiving cavity and fits against the wall of the gun body near the receiving cavity. The wall of the gun body near the receiving cavity has a groove that cooperates with the buckle. The locking component is disposed in the receiving cavity and is rotatably connected to the side plate. The locking component is a mechanical lock hook used to lock the charging gun to the charging socket of an electric vehicle.

[0004] To reduce the risk of danger caused by users misinterpreting the mechanical locking hook, a microswitch is also installed in the housing. However, there is an opening between the gun body and the gun cover for the latching mechanism to extend, and the opening is larger than the cross-section of the rotating part of the latching mechanism. This means that the housing is not completely isolated from the outside world. In rainy or humid environments, rainwater may seep into the housing through the opening. If too much water accumulates in the housing, it will adversely affect the use of the microswitch, such as causing short circuits or failure of the contacts. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a rainproof charging gun housing and charging gun, which prevents rainwater from accumulating in the housing cavity and forming water accumulation that affects the normal use of the micro switch, and helps to extend its service life.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a rainproof charging gun housing, including a gun housing and a gun cover, the gun cover covering the upper end of the gun housing and cooperating with the gun housing to form a receiving cavity, a mechanical locking hook and a micro switch are provided in the receiving cavity, and a drain hole communicating with the receiving cavity is provided on the side of the gun housing, the height of the drain hole being lower than the height of the lower end face of the micro switch.

[0007] Preferably, the inner bottom surface of the receiving cavity is stepped, including a first step surface, a second step surface, and a third step surface distributed sequentially from front to back. The height of the first step surface, the second step surface, and the third step surface decreases sequentially. The micro switch is disposed above the second step surface and the third step surface. The drain hole corresponds to the third step surface, and the height of the drain hole is located between the second step surface and the third step surface.

[0008] Preferably, the cross-section of the third step surface is high in the middle and low on the left and right sides, and the drain hole is provided on the left and right sides of the gun shell, and the drain hole is tangent to the edge of the third step surface.

[0009] Preferably, the third step surface is convex arc-shaped, and the two edges of the third step surface are recessed downward to form grooves. The grooves extend in the front-back direction, and the drain holes correspond to and are connected to the grooves.

[0010] Preferably, the width of the groove in the left-right direction is less than 2 mm.

[0011] Preferably, the third step surface is divided into a left section, a middle section, and a right section. The middle section of the third step surface protrudes upward to form an arc surface. The left and middle sections of the third step surface form low-lying areas between the left side wall of the receiving cavity and the right and middle sections of the third step surface form low-lying areas between the right side wall of the receiving cavity and the right side wall of the receiving cavity. The drain hole is connected to each of the low-lying areas.

[0012] Preferably, the width of the left segment and the width of the right segment of the third step surface are both less than 2 mm.

[0013] Preferably, mounting brackets for mounting the micro switch are provided on the second step surface and the third step surface, respectively.

[0014] Preferably, the second step surface and the third step surface are connected by an inclined guide surface, which is inclined from front to back and downward.

[0015] And a charging gun that uses the aforementioned rainproof charging gun housing.

[0016] Compared with the prior art, the advantages of this utility model are:

[0017] 1. By setting a drain hole on the side of the gun housing that communicates with the receiving cavity, and the height of the drain hole is lower than the height of the lower end face of the micro switch, it is ensured that rainwater seeping into the receiving cavity can be drained in time, avoiding water accumulation from contacting the micro switch and affecting its normal use, which helps to improve the reliability and service life of the micro switch in humid environments.

[0018] 2. The drainage function of the receiving cavity is achieved by adding a drain hole on the side of the gun casing. The structure is simple and easy to implement.

[0019] 3. By optimizing the shape of the third step surface, the cross-section of the third step surface is made to be high in the middle and low on the left and right sides. The infiltrated rainwater can flow quickly to the left and right sides, smoothly flow to the drain hole and be discharged, which helps to drain quickly. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the charging gun in this utility model;

[0021] Figure 2 This is a schematic diagram of the exploded structure of the charging gun in this utility model;

[0022] Figure 3 This is a schematic diagram of the gun casing in this utility model;

[0023] Figure 4 This is a cross-sectional structural diagram of the gun body in this utility model;

[0024] Figure 5 This is a schematic cross-sectional view of the gun casing in this utility model. Figure 1 ;

[0025] Figure 6 This is a schematic cross-sectional view of the gun casing in this utility model. Figure 2 .

[0026] In the diagram: 1. Charging gun; 11. Gun casing; 111. Drain hole; 12. Gun cover; 121. Mounting port; 13. Receiving cavity; 131. First step surface; 132. Second step surface; 133. Third step surface; 1332. Left section; 1333. Middle section; 1334. Right section; 1331. Groove; 135. Inclined guide surface; 14. Opening; 2. Mechanical locking hook; 21. Rotating rod; 22. Hook; 23. Button; 3. Micro switch; 4. Mounting bracket. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] Example 1: As Figures 1 to 4 As shown, a rainproof charging gun housing includes a gun shell 11 and a gun cover 12. The gun cover 12 covers the upper end of the gun shell 11 and cooperates with the gun shell 11 to form a receiving cavity 13. A mechanical locking hook 2 and a micro switch 3 are provided inside the receiving cavity 13. A drain hole 111 communicating with the receiving cavity 13 is provided on the side of the gun shell 11. The height of the drain hole 111 is lower than the height of the lower end face of the micro switch 3. When rainwater seeps into the receiving cavity 13, the rainwater can be discharged in time through the drain hole 111, preventing water from contacting the micro switch 3 and affecting its normal operation.

[0030] It should be noted that both the mechanical locking hook 2 and the micro switch 3 are conventional technologies in this field. Taking the mechanical locking hook 2 as an example, it generally includes a rotating rod 21, a hook 22, and a button 23. The upper end of the gun shell 11 cooperates with the front end of the gun cover 12 to form an opening 14. The upper end of the gun cover 12 is provided with an installation port 121. The rotating rod 21 is rotatably connected to the side wall of the receiving cavity 13. The front end of the rotating rod 21 extends out of the opening 14 and is provided with a hook 22. The button 23 is located at the rear end of the rotating rod 21 and extends out of the installation port 121. By pressing the button 23, the user can make the rotating rod 21 rotate up and down so that the hook 22 locks or unlocks with the slot on the charging dock of the electric vehicle.

[0031] In this embodiment, the inner bottom surface of the receiving cavity 13 is stepped, including a first stepped surface 131, a second stepped surface 132, and a third stepped surface 133 distributed sequentially from front to back. The height of the first stepped surface 131, the second stepped surface 132, and the third stepped surface 133 decreases sequentially. The micro switch 3 is located above the second stepped surface 132 and the third stepped surface 133. The drain hole 111 corresponds to the third stepped surface 133, and the height of the drain hole 111 is located between the second stepped surface 132 and the third stepped surface 133. When rainwater seeps into the receiving cavity 13 from the opening 14, the rainwater will flow sequentially along the first stepped surface 131, the second stepped surface 132 to the third stepped surface 133, and finally be discharged from the drain hole 111.

[0032] To facilitate rapid drainage, the cross-section of the third step surface 133 is high in the middle and low on the left and right sides. Drainage holes 111 are provided on the left and right sides of the gun casing 11. The drainage holes 111 are tangent to the edge of the third step surface 133. Rainwater that seeps into the third step surface 133 can flow quickly to the left and right sides and smoothly flow to the drainage holes 111 and be discharged.

[0033] Example 2: Figure 5 As shown, the rest of the structure is the same as in Embodiment 1, except that the third step surface 133 is convexly arc-shaped, and the two edges of the third step surface 133 are recessed downward to form grooves 1331. The grooves 1331 extend in the front-back direction, and the drainage holes 111 correspond one-to-one with and are connected to the grooves 1331. In this structure, the grooves 1331 serve as water collection channels to ensure that rainwater can be efficiently guided to the drainage holes 111.

[0034] In this embodiment, the width of the groove 1331 in the left-right direction is less than 2mm.

[0035] Example 3: Figure 4 and Figure 6 As shown, the rest of the parts are the same as in Embodiment 1, except that the third step surface 133 is divided into a left section 1332, a middle section 1333 and a right section 1334. The middle section 1333 of the third step surface 133 protrudes upward to form an arc surface. The left section 1332 and the middle section 1333 of the third step surface 133 are connected to the left side wall of the receiving cavity 13, and the right section 1334 and the middle section 1333 of the third step surface 133 are connected to the right side wall of the receiving cavity 13. The drain hole 111 is connected to the low-lying area in a one-to-one correspondence.

[0036] In this embodiment, the width of the left segment 1332 and the width of the right segment 1334 of the third step surface 133 are both less than 2mm.

[0037] Example 4: Figure 2 , Figure 5 and Figure 6 As shown, the rest is the same as in Embodiment 1. The difference is that mounting brackets 4 for mounting micro switches 3 are respectively provided on the second step surface 132 and the third step surface 133. The micro switches 3 are mounted on the mounting brackets 4, and a passage is formed between the lower end surface of the micro switches 3 and the second step surface 132 and the third step surface 133, so that rainwater will not come into contact with the micro switches 3 when it flows through.

[0038] In this embodiment, the second step surface 132 and the third step surface 133 are connected by an inclined guide surface 135. The inclined guide surface 135 is set from front to back and downward to form a slope, which helps to guide rainwater to the third step surface 133.

[0039] Example 5: Figure 1 As shown, a charging gun 1 adopts any one of the rainproof charging gun shells from Embodiment 1 to Embodiment 4.

[0040] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the implementation of the present invention is not limited to the above-described manner. Any improvements made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A rainproof charging gun shell, comprising a gun shell (11) and a gun cover (12), the gun cover (12) covers the upper end of the gun shell (11) and cooperates with the gun shell (11) to form a containing cavity (13), a mechanical lock hook (2) and a micro switch (3) are arranged in the containing cavity (13), characterized in that: The side of the gun shell (11) is provided with a drain hole (111) in communication with the accommodating cavity (13), and the height of the drain hole (111) is lower than the height of the lower end surface of the micro switch (3).

2. The rainproof charging gun shell according to claim 1, characterized in that: The inner bottom surface of the accommodating cavity (13) is stage-shaped, including a first step surface (131), a second step surface (132) and a third step surface (133) sequentially distributed from front to back, the height of the first step surface (131), the height of the second step surface (132) and the height of the third step surface (133) are sequentially reduced, the micro switch (3) is arranged above the second step surface (132) and the third step surface (133), the drain hole (111) corresponds to the third step surface (133), and the height of the drain hole (111) is located between the second step surface (132) and the third step surface (133).

3. The rainproof charging gun shell according to claim 2, characterized in that: The cross section of the third step surface (133) is shaped as high in the middle and low on both sides, the left side and the right side of the gun shell (11) are respectively provided with the drain hole (111), and the drain hole (111) is tangent to the edge of the third step surface (133).

4. The rainproof charging gun shell according to claim 3, characterized in that: The third step surface (133) is arranged in an arc shape protruding upward, the two edges of the third step surface (133) in the left-right direction are recessed downward to form a groove (1331), the groove (1331) extends in the front-rear direction, and the drain hole (111) corresponds to and communicates with the groove (1331) one by one.

5. The rainproof charging gun housing according to claim 4, characterized in that: The width of the groove (1331) in the left-right direction is less than 2 mm.

6. The rainproof charging gun shell according to claim 3, characterized in that: The third step surface (133) is divided into a left segment (1332), a middle segment (1333) and a right segment (1334), the middle segment (1333) of the third step surface (133) is protruded upward to form an arc surface, the left segment (1332) and the middle segment (1333) of the third step surface (133) and the left side wall of the accommodating cavity (13) and the right segment (1334) and the middle segment (1333) of the third step surface (133) and the right side wall of the accommodating cavity (13) form a low-lying area respectively, and the drain hole (111) corresponds to and communicates with the low-lying area one by one.

7. The rainproof charging gun housing according to claim 6, characterized in that: The width of the left segment (1332) and the width of the right segment (1334) of the third step surface (133) are less than 2 mm respectively.

8. The rainproof charging gun shell according to claim 2, characterized in that: The second step surface (132) and the third step surface (133) are respectively provided with a mounting bracket (4) for mounting the micro switch (3).

9. The rainproof charging gun shell of claim 2, wherein: The second step surface (132) and the third step surface (133) are connected by a bevel surface (135) which is inclined downward from front to back.

10. A charging gun, characterized by: The rainproof charging gun shell body of any one of claims 1-9 is adopted.

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