A waterproof plug for charging and discharging

Abstract

The application relates to a waterproof plug for charging and discharging, which comprises a plug body, the upper portion of the plug body is provided with an insulating positioning sleeve, a plug hole is formed in the insulating positioning sleeve, the top end of the outer wall of the insulating positioning sleeve is provided with a positioning convex edge, and connecting holes are formed on the two sides of the positioning convex edge; the lower portion of the plug body is provided with an insulating protection block which is arranged on the bottom surface of the insulating positioning sleeve and protrudes from the bottom surface, and positive and negative electrode connecting terminals are arranged in the plug hole; a rubber sealing gasket which is matched with the bottom surface of the positioning convex edge is arranged on the outer wall of the insulating positioning sleeve, and the rubber sealing gasket is provided with a rubber cover which can close the plug hole. The utility model belongs to the technical field of battery charging and discharging, can be quickly inserted into the positioning hole on the lithium battery pack shell, is convenient to install, is additionally provided with a rubber sealing gasket for sealing, and can effectively prevent rainwater, moisture and dust from entering the inside of the lithium battery pack shell to cause a short circuit.

Description

Technical Field

[0001] This application relates to the field of battery charging and discharging technology, and in particular to a waterproof plug for charging and discharging. Background Technology

[0002] The lithium battery in an electric bicycle is its power source. The electric bicycle is equipped with a charging / discharging plug that is electrically connected to the lithium battery. The power adapter plugs into the charging / discharging plug to charge the lithium battery multiple times. Existing lithium battery charging / discharging plugs have been found to have the following shortcomings during use: First, their waterproof performance is poor. In humid or dusty environments, existing charging / discharging plugs are prone to short circuits and poor contact due to water ingress or foreign objects.

[0003] To address the above issues, there is an urgent need for a waterproof plug that combines high sealing performance with easy plugging and unplugging. Utility Model Content

[0004] Therefore, it is necessary to provide a waterproof plug for charging and discharging, and its specific technical solution is as follows.

[0005] A waterproof plug for charging and discharging includes a plug body, an insulating positioning sleeve on the upper part of the plug body, a socket hole inside the insulating positioning sleeve, a positioning protrusion on the top of the outer wall of the insulating positioning sleeve, and connecting holes on both sides of the positioning protrusion; an insulating protective block protruding from the bottom surface of the insulating positioning sleeve is provided on the lower part of the plug body, positive and negative terminals are provided inside the socket hole, and the positive and negative terminals are arranged downward through the insulating protective block; a rubber sealing gasket adapted to the bottom surface of the positioning protrusion is provided on the outer wall of the insulating positioning sleeve, and a rubber cap capable of sealing the socket hole is provided on one side of the rubber sealing gasket.

[0006] Furthermore, the bottom end of the insulating protective block has two protruding insulating pillars that enclose the positive and negative electrical terminals. The bottom end of the insulating pillars has a positioning end face, and the bottom of the positive and negative electrical terminals is a copper pillar structure that protrudes downward from the positioning end face.

[0007] Furthermore, the socket is a triangular hole structure arranged in an axisymmetric manner, and the socket is provided with two positive and negative electrical terminals and a grounding terminal, which are arranged in a triangular pattern.

[0008] Furthermore, the outer wall of the insulating positioning sleeve is a hexagonal triangular positioning part, which can be adapted to the positioning hole on the battery pack housing. A sealing groove is provided on the triangular positioning part, which is used to position the sealing ring.

[0009] Furthermore, the insulating protective block has a waist-shaped key structure.

[0010] Furthermore, the rubber sealing gasket has a through hole that is adapted to the outer wall of the insulating positioning sleeve, and there is a clearance gap between the hole wall and the outer wall of the insulating positioning sleeve.

[0011] Furthermore, one side of the rubber cap is provided with a connecting part that is connected to the rubber sealing gasket, and the height of the connecting part is the same as the height of the positioning protrusion.

[0012] Furthermore, the bottom surface of the rubber cap has a protruding sealing block that adapts to the wall of the insertion hole.

[0013] Furthermore, a raised block is provided on the other side of the rubber cap, and a groove is formed on the raised block.

[0014] Compared with existing technologies, this utility model has the following beneficial effects:

[0015] This utility model provides a waterproof plug for charging and discharging. It can be quickly plugged into the positioning hole on the lithium battery pack shell, making installation convenient. It also features a rubber sealing gasket for sealing, which can effectively prevent rainwater, moisture, and dust from entering the interior of the lithium battery pack shell, thus avoiding short circuits caused by humid air and dust affecting the internal circuitry of the lithium battery pack. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural view of the waterproof plug for charging and discharging according to this utility model;

[0018] Figure 2 This is a front view of the structure of the waterproof plug for charging and discharging according to this utility model;

[0019] Figure 3 This is a structural cross-sectional view of the waterproof plug for charging and discharging according to this utility model;

[0020] Figure 4 This is a three-dimensional structural view of the plug body in this utility model;

[0021] Figure 5 This is a three-dimensional structural view of the rubber sealing gasket in this utility model;

[0022] Figure 6This is a front view of the structure of the rubber sealing gasket in this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1. Plug body; 2. Insulating positioning sleeve; 3. Socket; 4. Positioning protrusion; 5. Connection hole; 6. Insulating protective block; 7. Positive and negative terminals; 8. Rubber sealing gasket; 9. Rubber cover; 10. Insulating post; 11. Copper post structure; 12. Grounding terminal; 15. Sealing groove; 16. Sleeve hole; 17. Connection part; 18. Sealing block; 19. Raised block. Detailed Implementation

[0024] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0025] The embodiments of this utility model will be described below based on its overall structure.

[0026] Reference Figures 1-6 As shown, this embodiment provides a waterproof plug for charging and discharging, including a plug body 1, which is a plastic insulating structure. An insulating positioning sleeve 2 is provided on the upper part of the plug body 1. An insertion hole 3 is provided inside the insulating positioning sleeve 2. A positioning protrusion 4 is provided at the top of the outer wall of the insulating positioning sleeve 2, and connection holes 5 are provided on both sides of the positioning protrusion 4. An insulating protective block 6 protruding from the bottom surface of the insulating positioning sleeve 2 is provided on the lower part of the plug body 1. Positive and negative terminals 7 are provided inside the insertion hole 3, and the positive and negative terminals 7 pass downwards through the insulating protective block 6. A rubber sealing gasket 8 adapted to the bottom surface of the positioning protrusion 4 is provided on the outer wall of the insulating positioning sleeve 2. A rubber cap 9 capable of sealing the insertion hole 3 is provided on one side of the rubber sealing gasket 8, and through holes adapted to the connection holes 5 are provided on both sides of the rubber sealing gasket 8.

[0027] In this utility model of a waterproof plug for charging and discharging, the plug body 1 is quickly inserted into the positioning hole on the lithium battery pack shell through the insulating positioning sleeve 2, and then positioned by the positioning protrusion 4. In addition, a rubber sealing gasket 8 is provided for sealing connection. By setting a bolt structure at the connection hole 5 of the positioning protrusion 4 to lock it with the lithium battery pack shell, the positioning protrusion 4 of the insulating positioning sleeve 2 and the rubber sealing gasket 8 can be pressed tightly on the lithium battery pack shell. The sealing performance is good, which can effectively prevent rainwater, moisture and dust from entering the interior of the lithium battery pack shell, and avoid the short circuit caused by the influence of humid air and dust on the internal circuit of the lithium battery pack.

[0028] Moreover, a rubber cap 9 is provided on one side of the rubber sealing gasket 8 to seal the socket 3 of the insulating positioning sleeve 2, which can prevent rainwater and dust from entering the socket 3, and ensure that when the external plug is connected to the socket 3 of the insulating positioning sleeve 2, the positive and negative terminals 7 in the socket 3 can make good contact with the contact piece of the external plug, ensuring smooth power supply.

[0029] The rubber sealing gasket 8 and the rubber cap 9 are integrally injection molded, which is simple and convenient to manufacture. Moreover, the connection between the rubber sealing gasket 8 and the rubber cap 9 can prevent the rubber cap 9 from falling off or being lost during use.

[0030] Specifically, refer to Figure 1-4 The bottom end of the insulating protective block 6 has two protruding insulating pillars 10 that wrap around the positive and negative terminals 7. The bottom end of the insulating pillar 10 has a positioning end face. The bottom of the positive and negative terminals 7 is a copper pillar structure 11 that protrudes downward from the positioning end face. The top of the positive and negative terminals 7 is a flat pillar structure connected to the copper pillar structure 11.

[0031] Specifically, refer to Figure 1-4 The socket 3 is a triangular hole structure arranged in an axially symmetrical manner. The socket 3 is provided with two positive and negative terminals 7 and a grounding terminal 12. The two positive and negative terminals 7 and the grounding terminal 12 are arranged in a triangular distribution.

[0032] Specifically, refer to Figure 1-4 The outer wall of the insulating positioning sleeve 2 is a hexagonal triangular positioning part. The triangular positioning part can be adapted to the positioning hole on the battery pack housing. The triangular positioning part can be quickly inserted into the positioning hole on the battery pack housing. The triangular shape can prevent reverse insertion. A sealing groove 15 is provided on the triangular positioning part. The sealing groove 15 is used to position the sealing ring. The sealing ring is installed in the sealing groove 15 and can be in close contact with the inner wall of the positioning hole to further prevent rainwater and dust from entering the battery pack.

[0033] Specifically, refer to Figure 1-4 The insulating protective block 6 has an oblong key structure, and the two sides of the oblong key structure are rounded to avoid collision with external structures.

[0034] Specifically, refer to Figure 5-6The rubber sealing gasket 8 has a through hole 16 that adapts to the outer wall of the insulating positioning sleeve 2, and there is a clearance between the hole wall of the hole 16 and the outer wall of the insulating positioning sleeve 2; one side of the rubber cover 9 has a connecting part 17 connected to the rubber sealing gasket 8, and the height of the connecting part 17 is the same as the height of the positioning protrusion 4; the bottom surface of the rubber cover 9 has a protruding sealing block 18 that adapts to the hole wall of the insertion hole 3. By inserting the sealing block 18 into the insertion hole 3, the insertion hole 3 can be sealed to prevent water and dust from entering.

[0035] Specifically, refer to Figure 5-6 On the other side of the rubber cap 9, a lifting block 19 is provided protruding upward. The lifting block 19 has a groove. The lifting block 19 and the groove can be used to make it easy for the operator to pry open the rubber cap 9 and separate the sealing block 18 from the insertion hole 3.

[0036] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0037] The above embodiments only illustrate one or more implementation methods of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A waterproof plug for charging and discharging, comprising a plug body (1), characterized in that, The upper part of the plug body (1) is provided with an insulating positioning sleeve (2), and the insulating positioning sleeve (2) is provided with a socket (3). The top of the outer wall of the insulating positioning sleeve (2) is provided with a positioning protrusion (4), and the two sides of the positioning protrusion (4) are provided with connecting holes (5). The lower part of the plug body (1) is provided with an insulating protective block (6) protruding from the bottom surface of the insulating positioning sleeve (2). The socket (3) is provided with positive and negative terminals (7), and the positive and negative terminals (7) pass downward through the insulating protective block (6). The outer wall of the insulating positioning sleeve (2) is provided with a rubber sealing gasket (8) that is adapted to the bottom surface of the positioning protrusion (4). One side of the rubber sealing gasket (8) is provided with a rubber cap (9) that can close the socket (3).

2. A waterproof plug for charging and discharging according to claim 1, characterized in that, The bottom end of the insulating protective block (6) is provided with two insulating pillars (10) that wrap around the positive and negative terminals (7). The bottom end of the insulating pillar (10) is provided with a positioning end face. The bottom of the positive and negative terminals (7) is a copper pillar structure (11) that protrudes downward from the positioning end face.

3. A waterproof plug for charging and discharging according to claim 2, characterized in that, The socket (3) is a triangular hole structure arranged in an axisymmetric manner. The socket (3) is provided with two positive and negative terminals (7) and a grounding terminal (12). The two positive and negative terminals (7) and the grounding terminal (12) are arranged in a triangular pattern.

4. A waterproof plug for charging and discharging according to claim 3, characterized in that, The outer wall of the insulating positioning sleeve (2) is a hexagonal triangular positioning part, which can be adapted to the positioning hole on the battery pack housing. A sealing groove (15) is provided on the triangular positioning part, and the sealing groove (15) is used to position the sealing ring.

5. A waterproof plug for charging and discharging according to claim 1, characterized in that, The insulating protective block (6) has a waist-shaped key structure.

6. A waterproof plug for charging and discharging according to any one of claims 1-5, characterized in that, The rubber sealing gasket (8) has a through hole (16) that is adapted to the outer wall of the insulating positioning sleeve (2), and there is a clearance between the hole wall of the hole (16) and the outer wall of the insulating positioning sleeve (2).

7. A waterproof plug for charging and discharging according to claim 6, characterized in that, The rubber cap (9) has a connecting part (17) on one side that is connected to the rubber sealing gasket (8), and the height of the connecting part (17) is the same as the height of the positioning protrusion (4).

8. A waterproof plug for charging and discharging according to claim 7, characterized in that, The bottom surface of the rubber cap (9) is provided with a sealing block (18) that is adapted to the hole wall of the insertion hole (3).

9. A waterproof plug for charging and discharging according to claim 8, characterized in that, The other side of the rubber cap (9) is provided with a protruding protrusion block (19), and the protrusion block (19) has a groove.

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