Sealing ring structure of high-voltage wiring harness connector

Abstract

The utility model relates to the field of high-voltage wiring harnesses, in particular to a sealing ring structure of a high-voltage wiring harness connector, which comprises a front cover sealing ring cover plate, an annular sealing ring and a connector base. The lower end face of the annular sealing ring is fixed to the connector base in a welded mode, a sawtooth inserting groove is formed in the side end of the annular sealing ring, the front cover sealing ring cover plate and the annular sealing ring adopt an integrated injection molding rubber ring cover plate manufactured in an integrated injection molding mode, and the design of a boss buckle of the sealing ring and a groove of the front cover sealing ring cover plate is omitted. No positioning structure exists, the oblique insertion resistance of the sealing ring on the plug insertion face of the connector shell under the extreme working condition is enhanced, and the annular sealing ring is fixed to the connector base through ultrasonic welding to improve the retaining force of a cover plate of the sealing ring of the front cover.

Description

Technical Field

[0001] The utility model relates to the field of high-voltage wire harnesses, in particular to a sealing ring structure of a high-voltage wire harness connector. Background Art

[0002] Automotive high-voltage wiring harness connectors are key components in new energy vehicles. They connect key high-voltage electrical equipment, such as battery packs, electric motors, and charging devices, to form a high-voltage power system. These connectors utilize an end-face sealing ring when mating plugs and sockets. However, in actual use, because the sealing ring and cover assembly utilize a snap-fit design, the socket can easily squeeze and deform the sealing ring, causing it to rupture or break during mating, leading to seal failure.

[0003] Therefore, in order to solve the deficiencies in the prior art, a high-voltage wire harness connector sealing ring structure with a simple structure needs to be designed. Utility Model Content

[0004] The utility model provides a sealing ring structure of a high-voltage wire harness connector in order to solve the problems of the prior art.

[0005] The purpose of the utility model can be achieved through the following technical solutions: A high-voltage wire harness connector sealing ring structure includes: a front cover sealing ring cover plate, an annular sealing ring and a connector base, the annular sealing ring is connected to the lower end surface of the front cover sealing ring cover plate by integral injection molding, the lower end surface of the annular sealing ring is fixed to the connector base by welding, and a serrated slot is provided at the side end of the annular sealing ring.

[0006] As a further improvement, the lower end surface of the annular sealing ring is fixed to the connector base by ultrasonic welding.

[0007] As a further improvement, the four side ends of the annular sealing ring are provided with serrated slots and are connected in sequence.

[0008] As a further improvement, the connection between the sawtooth slots is provided with an arc chamfer.

[0009] Compared with the prior art, the sealing ring structure of the high-voltage wire harness connector of the present invention has the following advantages:

[0010] 1. The front cover sealing ring cover and the annular sealing ring are made of one-piece injection molding. The boss buckle of the sealing ring and the groove design of the front cover sealing ring cover are eliminated. There is no positioning structure, which enhances the anti-oblique insertion ability of the sealing ring on the mating surface of the connector housing plug under extreme working conditions.

[0011] 2. The annular sealing ring is fixed to the connector base by welding. Through comprehensive welding, the sealing ring will not be squeezed, deformed or cracked by the socket after assembly, thereby improving the retention force of the front cover sealing ring cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the utility model

[0013] Figure 2 This is a schematic diagram of the internal structure of the utility model

[0014] Figure 3 This is a schematic diagram of the structure of the annular sealing ring in the utility model

[0015] In the figure, 1-front cover sealing ring cover, 2-annular sealing ring, 21-serrated slot, 22-arc chamfer, 3-connector base. DETAILED DESCRIPTION

[0016] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0017] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0018] Below with reference to the embodiment and the attached Figures 1 to 3 , the technical solution of the utility model is further elaborated.

[0019] Example 1

[0020] A high-voltage wire harness connector sealing ring structure includes: a front cover sealing ring cover plate 1, an annular sealing ring 2 and a connector base 3. The annular sealing ring 2 is connected to the lower end surface of the front cover sealing ring cover plate 1 by integral injection molding, and the lower end surface of the annular sealing ring 2 is fixed to the connector base 3 by welding. A serrated slot 21 is provided at the side end of the annular sealing ring 2.

[0021] like Figures 1 to 3As shown, the working principle of the present invention is as follows: the front cover sealing ring cover plate 1 and the annular sealing ring 2 are manufactured into an integral injection-molded rubber ring cover plate by integral injection molding, and then the integral injection-molded rubber ring cover plate is fixed in the groove 31 at the upper end of the connector base 3 by welding, and the serrated slot 2 is used for plugging and connecting with the external connector.

[0022] Advantages of this utility model:

[0023] 1. The front cover sealing ring cover plate 1 and the annular sealing ring 2 are made of an integral injection-molded rubber ring cover plate. The boss buckle of the sealing ring and the groove design of the front cover sealing ring cover plate are eliminated. There is no positioning structure, which enhances the anti-oblique insertion capability of the sealing ring on the mating surface of the connector housing plug under extreme working conditions.

[0024] 2. The annular sealing ring 2 is fixed to the connector base 3 by welding. The comprehensive welding method prevents the sealing ring from being squeezed, deformed or cracked by the socket after assembly, thereby improving the retention force of the front cover sealing ring cover.

[0025] As a further preferred embodiment, the lower end face of the annular sealing ring 2 is fixed to the connector base 3 by ultrasonic welding. The use of ultrasonic welding further enhances the connection strength between the annular sealing ring 2 and the connector base 3. Ultrasonic welding utilizes an ultrasonic generator to convert electrical energy into high-frequency mechanical vibrations, which are transmitted to the contact surface between the annular sealing ring 2 and the connector base 3 via a transducer and a welding head. Under the action of pressure, friction between the contact surfaces generates heat energy, causing the materials to melt and bond, thereby enhancing the holding force of the mating surface sealing ring under extreme operating conditions.

[0026] As a further preferred embodiment, the four side ends of the annular sealing ring 2 are provided with sawtooth slots 21 and are sequentially connected. The sawtooth slots 21 at the four side positions further improve the anti-oblique insertion capability.

[0027] As a further preferred embodiment, the connection of the serrated slots 21 is provided with an arc-shaped chamfer 22 , which can disperse stress and improve the fatigue life of the annular sealing ring 2 .

[0028] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.

Claims

1. A high-voltage wire harness connector sealing ring structure, characterized in that: include: The front cover sealing ring cover plate, the annular sealing ring and the connector base, the annular sealing ring is connected to the lower end surface of the front cover sealing ring cover plate by integral injection molding, the lower end surface of the annular sealing ring is fixed to the connector base by welding, and the side end of the annular sealing ring is provided with a serrated slot.

2. A high-voltage wire harness connector sealing ring structure according to claim 1, characterized in that: The lower end surface of the annular sealing ring is fixed to the connector base through ultrasonic welding.

3. The high-voltage wire harness connector sealing ring structure according to claim 1, characterized in that: The four side ends of the annular sealing ring are all provided with serrated slots and are connected in sequence.

4. A high-voltage wire harness connector sealing ring structure according to claim 3, characterized in that: The connection between the sawtooth slots is provided with an arc chamfer.

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