A sealing structure for preventing water from entering a charging gun head

Abstract

The utility model discloses a kind of sealing structure for preventing water from entering charging gun head, it is related to charging gun related technical field.The utility model includes charging gun main body, outer mounting disc, fixed sleeve and internal thread cylinder, the inner thread cylinder is fixed with internal thread cylinder in the side of charging gun main body, internal thread cylinder internal thread is connected with outer thread sleeve, outer thread sleeve is fixed with fixed sleeve in one end close to charging gun main body charging end, fixed sleeve is fixed with flexible ring in one end away from outer thread sleeve, flexible ring side is fixed with outer mounting disc, outer mounting disc side is fixed with flexible cavity.The utility model is fixed with internal thread cylinder by setting charging gun main body, outer mounting disc, fixed sleeve and internal thread cylinder, the problem that charging gun head is not good enough when working to butt joint electric structure waterproof protection, and sealing structure is inconvenient to replace, the utility model has the advantages that: charging gun head is better when working to butt joint electric structure waterproof protection, and sealing structure is replaced more conveniently.

Description

Technical Field

[0001] This utility model belongs to the technical field of charging guns, and in particular relates to a sealing structure to prevent water from entering the charging gun head. Background Technology

[0002] The charging gun head is a key component for electric vehicle charging, primarily providing a power connection for new energy vehicles. The charging gun head is typically made of flame-retardant glass fiber reinforced nylon or flame-retardant glass fiber reinforced PBT. These two materials exhibit excellent performance in terms of water absorption, fire resistance, temperature resistance, dimensional stability, and electrical properties. During operation, the charging gun is inserted into the charging station or the charging port of the electric vehicle, sealing the charging location from the external space for waterproofing. However, it still has the following drawbacks in practical use: When a charging gun is used to charge a car or installed on a charging station, small gaps will remain between the charging gun head and the electrical connection structure during operation. Rainwater and moisture can easily enter the charging gun head, causing the electrical connection structure to come into contact with moisture and corrode, affecting the stability of the electrical connection. When the charging gun head is in operation, the sealing structure is usually fixedly installed on the gun head. During long-term use, the sealing structure is prone to wear due to oxidation and other factors, which affects the sealing effect of the sealing structure and requires replacement. Replacement requires complete disassembly, which is not convenient. Utility Model Content

[0003] The purpose of this utility model is to provide a sealing structure to prevent water from entering the charging gun head. By setting up a charging gun body, an outer mounting plate, a fixing sleeve and an inner threaded cylinder, it solves the problems of insufficient waterproof protection of the charging gun head's electrical connection structure during operation and the inconvenience of replacing the sealing structure.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a sealing structure to prevent water from entering the charging gun head, including a charging gun body, an outer mounting plate, a fixing sleeve, and an internal threaded cylinder. The internal threaded cylinder is fixed to the periphery of the charging gun body, and an external threaded sleeve is internally threaded to the internal threaded cylinder. A fixing sleeve is fixed to the end of the external threaded sleeve near the charging end of the charging gun body, and a flexible ring is fixed to the end of the fixing sleeve away from the external threaded sleeve. An outer mounting plate is fixed to the periphery of the flexible ring, and a flexible cavity is fixed to the periphery of the outer mounting plate. During operation, the charging gun body is electrically connected to the charging pile to charge the vehicle. The flexible cavity is fixed to the outer mounting plate, and the external threaded sleeve is connected to the fixing sleeve. When the fixing sleeve rotates, it drives the external threaded sleeve to screw into and out of the internal threaded cylinder, separating and installing the charging gun body and the fixing sleeve.

[0005] Furthermore, a locking slot is provided on the upper part of the charging gun body near the charging end. The locking slot is located between the charging end of the charging gun body and the end of the flexible ring away from the fixed sleeve, and the charging gun body is locked by the locking slot.

[0006] Furthermore, the outer mounting plate is located at the edge of the flexible ring near the fixed sleeve, and the flexible cavity is open at one end near the charging end of the charging gun body, so as to be attracted to the charging pile.

[0007] Furthermore, the flexible cavity has an open end face with an inner ring fixed to a flexible outer ring, and the flexible cavity has an open end face with an outer ring fixed to a flexible outer ring. An exhaust valve is fixedly connected to the end of the flexible cavity away from the flexible inner ring and the flexible outer ring, so that when the flexible cavity is pressed, the air in the exhaust valve is discharged.

[0008] Furthermore, the fixed sleeve is fixed with connecting rods in a ring array around its periphery, and a rotating ring is fixed to the end of all the connecting rods away from the fixed sleeve. When the fixed sleeve is working, it is connected to the rotating ring through the connecting rods.

[0009] Furthermore, a sealing ring is fixed at the outer edge of the flexible ring away from the fixed sleeve. The fixed sleeve, the external threaded sleeve, and the flexible ring are all movably connected to the periphery of the charging gun body. The flexible ring is squeezed and sealed to the outside of the car charging port through the cooperation of the sealing ring.

[0010] This utility model has the following beneficial effects: This invention solves the problem of insufficient waterproof protection of the charging gun head's electrical connection structure during operation by setting up a charging gun body, a fixing sleeve, and an internal threaded cylinder. When the charging gun body is inserted into the charging port of a car, the flexible ring and its sealing ring abut against the outside of the charging port, sealing the gap between the charging port and the charging gun body. This prevents rainwater from entering the charging end of the charging gun body. After charging is complete, the charging gun body is removed and inserted into the socket on the charging pile. After locking, the flexible outer ring and flexible inner ring of the flexible cavity on the outer mounting plate press against the surface of the charging pile. After compression, the air in the flexible cavity is discharged in conjunction with the exhaust valve, creating an adsorption state that seals the gap between the charging gun body and the charging pile, increasing the waterproofness of the charging gun body placed on the charging pile and providing better waterproof protection for the charging gun head's electrical connection structure.

[0011] This invention solves the problem of inconvenient replacement of the sealing structure of the charging gun head during operation by setting up a charging gun body, an outer mounting plate, and a fixing sleeve. When it is necessary to install the sealing structure on the charging gun body, the outer threaded sleeve is put on the charging end of the charging gun body and then moved to the vicinity of the inner threaded cylinder. Then, the rotating ring is rotated, which drives the fixing sleeve to rotate, so that the outer threaded sleeve is screwed into the inner threaded sleeve and tightened, so that the sealing structure is installed on the charging gun body and can be put into operation immediately. When it is necessary to disassemble the sealing structure, the rotating ring is rotated, which drives the fixing sleeve and the outer threaded sleeve to rotate, so that the outer threaded sleeve is screwed out from the inner threaded cylinder. After separating the fixing sleeve from the charging gun body, the disassembly is completed, making it more convenient to replace the sealing structure of the charging gun head during operation. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 A three-dimensional view of the assembly structure of a sealing structure to prevent water from entering the charging gun head; Figure 2 A 3D view of the main structure of the charging gun; Figure 3 This is a 3D view of the external mounting plate structure; Figure 4 This is a three-dimensional view of the fixed sleeve structure; Figure 5 This is a three-dimensional view of an internally threaded cylinder structure.

[0014] Figure label: 1. Charging gun body; 101. Locking port; 2. External mounting plate; 201. Flexible cavity; 202. Flexible inner ring; 203. Flexible outer ring; 204. Exhaust valve; 3. Fixing sleeve; 301. Connecting rod; 302. Rotary ring; 303. External threaded sleeve; 304. Flexible ring; 305. Sealing ring; 4. Internal threaded cylinder. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation Example 1

[0016] Please see Figure 1-5 This utility model is a sealing structure to prevent water from entering the charging gun head, including a charging gun body 1, an outer mounting plate 2, a fixing sleeve 3, and an internal threaded cylinder 4. The internal threaded cylinder 4 is fixed around the periphery of the charging gun body 1. When the charging gun body 1 is working, it transmits power to the charging vehicle. The external threaded sleeve 303 is threadedly connected to the internal threaded cylinder 4. The internal threaded cylinder 4 connects the external threaded sleeve 303 to the fixing sleeve 3 and the charging gun body 1. The fixing sleeve 3 is fixed at the end of the external threaded sleeve 303 near the charging end of the charging gun body 1. When the fixing sleeve 3 rotates, it drives the external threaded sleeve 303. Rotation allows the external threaded sleeve 303 to separate from the internal threaded cylinder 4. A flexible ring 304 is fixed to the end of the fixed sleeve 3 away from the external threaded sleeve 303. The flexible ring 304, in conjunction with the sealing ring 305, seals the charging gun with the charging port during charging. An external mounting plate 2 is fixed around the flexible ring 304. The flexible cavity 201 is fixed on the external mounting plate 2. The flexible cavity 201 is fixed around the external mounting plate 2. After the flexible cavity 201 is adsorbed onto the surface of the charging pile, it seals the gap between the charging end of the charging gun body 1 and the locking port 101 on the charging pile, preventing water from entering the charging end of the charging gun body 1.

[0017] Specifically, a locking slot 101 is provided on the upper side of the charging gun body 1 near the charging end. The locking slot 101 is located between the charging end of the charging gun body 1 and the end of the flexible ring 304 away from the fixed sleeve 3. When the charging gun body 1 is working, it is locked to the charging pile through the locking slot 101.

[0018] Furthermore, the outer mounting plate 2 is located at the edge of the flexible ring 304 near the fixed sleeve 3, and the section of the flexible cavity 201 near the charging end of the charging gun body 1 is open, so that during operation, the air in the flexible cavity 201 can be discharged, so that the flexible cavity 201 is in a negative pressure state, forming an adsorption effect with the charging pile.

[0019] Furthermore, a flexible outer ring 203 is fixed to the inner ring of one open end face of the flexible cavity 201, and a flexible outer ring 203 is fixed to the outer ring of one open end face of the flexible cavity 201. An exhaust valve 204 is fixedly connected to the end of the flexible cavity 201 away from the flexible inner ring 202 and the flexible outer ring 203. When the flexible cavity 201 is working, it is adsorbed onto the charging pile through the cooperation of the flexible outer ring 203 and the flexible inner ring 202.

[0020] Furthermore, connecting rods 301 are fixed in a ring array around the periphery of the fixed sleeve 3. All connecting rods 301 are fixed with a rotating ring 302 at the end away from the fixed sleeve 3. When the fixed sleeve 3 is working, it drives the fixed sleeve 3 to rotate by connecting the rotating ring 302.

[0021] The operation process of this embodiment is as follows: During operation, when a sealing structure needs to be installed on the charging gun body 1, the external threaded sleeve 303 is inserted from the charging end of the charging gun body 1 and then moved close to the internal threaded cylinder 4. Then, the rotating ring 302 is rotated, which drives the fixed sleeve 3 to rotate, so that the external threaded sleeve 303 is screwed into the internal threaded sleeve and tightened, so that the sealing structure is installed on the charging gun body 1 and can be put into operation immediately. When it is necessary to disassemble the sealing structure, the rotating ring 302 is rotated, which drives the fixed sleeve 3 and the external threaded sleeve 303 to rotate, so that the external threaded sleeve 303 is screwed out from the internal threaded cylinder 4, and the fixed sleeve 3 is separated from the charging gun body 1 to complete the disassembly. A new sealing structure is selected, and the above installation operation is repeated to complete the replacement. Specific Implementation Example 2

[0022] Please see Figure 1-3 Based on the first specific embodiment, a sealing ring 305 is fixed at the outer edge of the flexible ring 304 away from the fixed sleeve 3. The fixed sleeve 3, the external threaded sleeve 303 and the flexible ring 304 are all movably connected to the periphery of the charging gun body 1. When the charging gun body 1 is inserted into the charging port in the car, the flexible ring 304 is pressed and sealed with the structure outside the charging port of the car through the sealing ring 305.

[0023] The operation process of this embodiment is as follows: During operation, when the charging gun body 1 is removed from the charging pile and then moved to the charging port position on the car to be charged, the charging gun body 1 is inserted into the charging port on the car. At this time, the flexible ring 304 and its sealing ring 305 abut against the outside of the car charging port, sealing the gap between the car charging port and the charging gun body 1, preventing rainwater and other substances from entering the charging end of the charging gun body 1. After the charging port is completed, the charging gun body 1 is removed and inserted into the socket on the charging pile. After locking, the flexible outer ring 203 and flexible inner ring 202 of the flexible cavity 201 on the outer mounting plate 2 are pressed onto the surface of the charging pile. After being squeezed, the air in the flexible cavity 201 is discharged in conjunction with the exhaust valve 204, and it is in an adsorption state, so that the gap between the charging gun body 1 and the charging pile is sealed, increasing the waterproofness of the charging gun body 1 placed on the charging pile.

[0024] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A sealing structure for preventing water ingress into the charging gun head, comprising a charging gun body (1), an outer mounting plate (2), a fixing sleeve (3), and an internal threaded cylinder (4), characterized in that: An internal threaded cylinder (4) is fixed around the body of the charging gun (1). An external threaded sleeve (303) is internally threaded onto the internal threaded cylinder (4). A fixing sleeve (3) is fixed at one end of the external threaded sleeve (303) near the charging end of the charging gun body (1). A flexible ring (304) is fixed at one end of the fixing sleeve (3) away from the external threaded sleeve (303). An external mounting plate (2) is fixed around the flexible ring (304). A flexible cavity (201) is fixed around the external mounting plate (2).

2. The sealing structure for preventing water ingress into the charging gun head according to claim 1, characterized in that: A locking opening (101) is provided on the upper side of the charging gun body (1) near the charging end. The locking opening (101) is located between the charging end of the charging gun body (1) and the end of the flexible ring (304) away from the fixed sleeve (3).

3. The sealing structure for preventing water ingress into the charging gun head according to claim 1, characterized in that: The outer mounting plate (2) is located at the edge of the flexible ring (304) near the fixed sleeve (3), and the flexible cavity (201) is open at one end of the charging end of the charging gun body (1).

4. The sealing structure for preventing water ingress into the charging gun head according to claim 3, characterized in that: The flexible cavity (201) has an open end face with an inner ring fixed to a flexible outer ring (203), and the flexible cavity (201) has an open end face with an outer ring fixed to a flexible outer ring (203). An exhaust valve (204) is fixedly connected to the end of the flexible cavity (201) away from the flexible inner ring (202) and the flexible outer ring (203).

5. The sealing structure for preventing water ingress into the charging gun head according to claim 1, characterized in that: The fixed sleeve (3) has connecting rods (301) fixed in a ring array around its periphery, and a rotating ring (302) is fixed to the end of all the connecting rods (301) away from the fixed sleeve (3).

6. The sealing structure for preventing water ingress into the charging gun head according to claim 1, characterized in that: A sealing ring (305) is fixed at the outer edge of the flexible ring (304) away from the fixed sleeve (3). The fixed sleeve (3), the external threaded sleeve (303) and the flexible ring (304) are all movably connected to the periphery of the charging gun body (1).

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