Waterproof connector assembly

Abstract

The utility model discloses a waterproof connector assembly, comprising a female seat and a male head which are mutually plugged, the female seat comprises a first main body and a terminal group; the male head comprises a second main body, a connecting plug, a first sealing ring and a second sealing ring; a first sealing ring and a second sealing ring are arranged, and the first sealing ring is arranged on the second main body and clamped between the second main body and the inner side wall of the insertion cavity, so that the sealing performance of the insertion part between the male head and the female seat is improved; the second sealing ring is arranged at the opening of the mounting cavity and is in extrusion fit with the external wire harness; therefore, the sealing performance of the connection part between the external wire harness and the male head is improved. External water vapor is prevented from entering the connecting assembly, the waterproof performance is better, internal assemblies are prevented from being eroded by external water, and the overall service life of the connector assembly is effectively prolonged.

Description

Technical Field

[0001] This utility model relates to the field of connectors, and in particular to a waterproof connector assembly. Background Technology

[0002] Connectors, also known as plugs or sockets, are generally electrical connectors. They are devices that connect two active devices to transmit current or signals. They can be categorized into many different types based on their application, installation method, special structure, and special performance characteristics, and are frequently mentioned in publications and manufacturers' promotional materials. They primarily use male and female connectors to connect and transmit data.

[0003] Existing connectors have gaps at the male and female connector mating points, allowing external moisture to easily enter through these gaps. Furthermore, moisture can easily seep in at the connection point between the male connector and external wires. This results in poor overall waterproofing, and over time, internal components are susceptible to damage from moisture corrosion, thus affecting the connector's lifespan. Therefore, it is necessary to further improve the existing connector structure. Utility Model Content

[0004] In view of this, the present invention addresses the deficiencies of the existing technology and its main objective is to provide a waterproof connector assembly that can effectively solve the problems of poor waterproof performance, susceptibility to external moisture corrosion, and short service life of existing connector assemblies.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A waterproof connector assembly includes a female connector and a male connector that are interlocked. The female connector includes a first body and a terminal group. The first body has a insertion cavity with an open front end. The terminal group is disposed on the first body, with its front end extending inward into the insertion cavity to form a mating portion, and its rear end extending backward out of the first body to form a first soldering portion. The male connector includes a second body, a plug, a first sealing ring, and a second sealing ring. The second body mates with the insertion cavity and has a mounting cavity penetrating the front and rear ends of the second body, the mounting cavity corresponding to the position of the terminal group. The plug is disposed in the mounting cavity, and an external wire harness extends inward into the mounting cavity and is connected to the plug by crimping. The plug has a mating groove that mates with the mating portion. The first sealing ring is disposed on the second body and sandwiched between the second body and the inner wall of the insertion cavity. The second sealing ring is disposed at the opening of the mounting cavity and is crimped to engage with the external wire harness.

[0007] As a preferred embodiment, the rear end of the first main body is recessed to form an installation groove that mates with the first welding part. The bottom of the installation groove has a through hole that communicates with the insertion cavity, and the insertion part extends into the insertion cavity through the through hole.

[0008] As a preferred embodiment, the first welding part is integrally bent outward from the rear end of the terminal group, and the first welding part is attached to the inner sidewall of the rear end of the mounting groove.

[0009] As a preferred option, the female connector also includes a fixing foot, which is fixed to the rear end face of the first body. The rear end of the fixing foot is integrally bent to form a second welding part that mates with an external PCB board.

[0010] As a preferred embodiment, the terminal group includes two terminals arranged symmetrically in the horizontal direction, and correspondingly, the mounting cavity and the connector are also arranged symmetrically in the horizontal direction; the fixing feet are two terminals arranged symmetrically in the vertical direction.

[0011] As a preferred option, the outer periphery of the second main body is provided with an annular mounting groove, and the first sealing ring is embedded in the mounting groove.

[0012] As a preferred embodiment, the mounting cavity extends integrally inward from the opening of the female seat to form a limiting portion, and the end of the connector abuts against the inner wall of the limiting portion.

[0013] As a preferred embodiment, the connector is integrally recessed to form a contact portion, and the inner sidewall of the contact portion is in contact with the connector portion.

[0014] As a preferred embodiment, the second sealing ring is a silicone ring, which has a plurality of elastic compression portions arranged laterally at intervals protruding outward; the second sealing ring extends outward from the mounting cavity.

[0015] As a preferred option, the first main body has a buckle hole, and the second main body is provided with a pressing part, the movable end of which is provided with a buckle that cooperates with the buckle hole.

[0016] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0017] By incorporating a first sealing ring and a second sealing ring, with the first sealing ring positioned on the second body and sandwiched between the second body and the inner wall of the insertion cavity, the sealing performance at the insertion point between the male and female connectors is enhanced. Furthermore, the second sealing ring is positioned at the opening of the mounting cavity and press-fits with the external wire harness, thereby increasing the sealing performance at the connection between the external wire harness and the male connector. This prevents external moisture from entering the connector assembly, improving waterproofing and preventing internal components from being corroded by external moisture, effectively increasing the overall service life of the connector assembly.

[0018] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the usage state of the first preferred embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of the exploded state of the female seat in the first preferred embodiment of this utility model;

[0021] Figure 3 This is a schematic diagram of the exploded state of the male head in the first preferred embodiment of this utility model;

[0022] Figure 4 This is a cross-sectional schematic diagram of the first preferred embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the usage state of the second preferred embodiment of this utility model;

[0024] Figure 6 This is an exploded view of the second preferred embodiment of the present invention.

[0025] Explanation of reference numerals in the attached diagram:

[0026] 10. Female connector 101. Insertion cavity

[0027] 102. Mounting slot; 103. Through hole

[0028] 104. Buckle hole 11. First main body

[0029] 12. Terminal group 121. Plug-in part

[0030] 122. First welding part; 123. Terminal

[0031] 13. Fixing foot 131. Second welding part

[0032] 20. Male connector 201. Installation cavity

[0033] 202. Plug-in slot; 203. Mounting slot

[0034] 21. Second main body 22. Connector

[0035] 221. Contact part; 23. First sealing ring

[0036] 24. Second sealing ring; 241. Elastic compression part

[0037] 25. Limiting part 26. Pressing part

[0038] 261. Buckle 30. Wire harness. Detailed Implementation

[0039] Please refer to Figures 1 to 4 As shown, it illustrates the specific structure of the first preferred embodiment of the present invention, which includes a female connector 10 and a male connector 20 that are interlocked.

[0040] The female connector 10 includes a first body 11 and a terminal group 12. The first body 11 has an insertion cavity 101 with an open front end. The terminal group 12 is disposed on the first body 11, and the front end of the terminal group 12 extends inward into the insertion cavity 101 to form a plug-in portion 121. The rear end of the terminal group 12 extends rearward out of the first body 11 to form a first welding portion 122. In this embodiment, the rear end of the first body 11 is recessed to form a mounting groove 102 that mates with the first welding portion 122. The bottom of the mounting groove 102 has a through hole 103 that communicates with the insertion cavity 101. The plug-in portion 121 extends inward into the insertion cavity 101 through the through hole 103. The first welding portion 122 is integrally bent outward from the rear end of the terminal group 12 and is attached to the inner sidewall of the rear end of the mounting groove 102, thereby increasing the welding area between the first welding portion 122 and the external PCB board and ensuring the stability of the welding structure. The female connector 10 also includes a fixing foot 13, which is fixed to the rear end face of the first main body 11. The rear end of the fixing foot 13 is integrally bent to form a second welding part 131 that mates with the external PCB board. The terminal group 12 includes two terminals 123 arranged laterally symmetrically. The fixing foot 13 is arranged vertically symmetrically. The two fixing feet 13 further increase the contact welding area between the female connector 10 and the external PCB board, ensuring the stability of the welding structure between the female connector 10 and the external PCB board.

[0041] The male connector 20 includes a second body 21, a plug connector 22, a first sealing ring 23, and a second sealing ring 24. The second body 21 mates with the insertion cavity 101. The second body 21 has a mounting cavity 201 extending through the front and rear end faces of the second body 21, and the mounting cavity 201 corresponds to the position of the terminal group 12. The plug connector 22 is disposed in the mounting cavity 201. The external wire harness 30 extends inward into the mounting cavity 201 and is connected to the plug connector 22 by crimping. This crimping method replaces the existing welding method, making the assembly process more convenient and ensuring... The transmission process is stable; the connector 22 has a plug groove 202 that mates with the plug part 121; the first sealing ring 23 is disposed on the second body 21 and sandwiched between the second body 21 and the inner side wall of the insertion cavity 101, thereby increasing the sealing of the plug connection between the male connector 20 and the female connector 10 and preventing external moisture from entering; the second sealing ring 24 is disposed at the opening of the mounting cavity 201 and is squeezed together with the external wire harness 30, thereby increasing the sealing between the external wire harness 30 and the side wall of the mounting cavity 201, and increasing the overall waterproof performance through its cooperation with the first sealing ring 23. In this embodiment, the mounting cavity 201 and the connector 22 are also arranged symmetrically in the transverse direction, and each connector 22 is disposed in the corresponding mounting cavity 201 and plugged into the corresponding terminal 123.

[0042] The second main body 21 has an annular mounting groove 203 recessed inward on the outer periphery of its outer side wall. The first sealing ring 23 is embedded in the mounting groove 203 to prevent the first sealing ring 23 from sliding back and forth under the action of friction during the insertion process. The mounting cavity 201 extends inward from the opening facing the female seat 10 to form a limiting part 25. The end of the plug 22 abuts against the inner side wall of the limiting part 25, and the limiting part 25 limits the position of the plug 22, ensuring the stability of the overall structure. The plug 22 has a contact part 221 integrally recessed inward, and the inner side wall of the contact part 221 is in contact with the plug part 121. The second sealing ring 24 is a silicone ring. The silicone ring has multiple elastic compression parts 241 arranged laterally and protruding outward. The sealing performance is ensured by the compression between the elastic compression parts 241 and the mounting cavity 201. The second sealing ring 24 extends outward from the mounting cavity 201. The extended second sealing ring 24 can play a certain role in protecting the external wire harness 30 and prevent the external wire harness 30 from bending at a large angle under the action of external force.

[0043] Please refer to Figures 5 to 6 As shown, it illustrates the specific structure of the second preferred embodiment of the present invention, which is basically the same as the structure of the aforementioned first preferred embodiment, except that:

[0044] In this embodiment, the first main body 11 has a snap hole 104, and the second main body 21 is provided with a pressing part 26. The movable end of the pressing part 26 is provided with a snap part 261 that cooperates with the snap hole 104. Through the cooperation of the snap hole 104 and the snap part 261, when the male connector 20 is inserted into the female connector 10, it can be locked and fixed by the snap structure, thereby preventing the male connector 20 from falling off the female connector and ensuring the stability of the insertion process.

[0045] The key design features of this invention are: by incorporating a first sealing ring and a second sealing ring, with the first sealing ring positioned on the second body and sandwiched between the second body and the inner wall of the insertion cavity, the sealing performance at the connection between the male and female connectors is enhanced; and the second sealing ring is positioned at the opening of the mounting cavity and press-fits with the external wire harness, thereby increasing the sealing performance at the connection between the external wire harness and the male connector; preventing external moisture from entering the connector assembly, improving waterproofing, preventing internal components from being corroded by external moisture, and effectively increasing the overall service life of the connector assembly.

[0046] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A waterproof connector assembly, comprising a female socket and a male connector that interlock, characterized in that: The female connector includes a first body and a terminal group; the first body has an insertion cavity with an open front end; the terminal group is disposed on the first body, and the front end of the terminal group extends inward into the insertion cavity to form a plug-in portion, and the rear end of the terminal group extends backward out of the first body to form a first solder portion; the male connector includes a second body, a plug connector, a first sealing ring, and a second sealing ring; the second body mates with the insertion cavity, and the second body has a mounting cavity penetrating the front and rear ends of the second body, the mounting cavity corresponding to the position of the terminal group; the plug connector is disposed in the mounting cavity, and an external wire harness extends inward into the mounting cavity and is connected to the plug connector by crimping; the plug connector has a plug groove that mates with the plug-in portion; the first sealing ring is disposed on the second body and sandwiched between the second body and the inner sidewall of the insertion cavity; the second sealing ring is disposed at the opening of the mounting cavity and is crimped to engage with the external wire harness.

2. The waterproof connector assembly according to claim 1, characterized in that: The rear end of the first main body is recessed and formed with an installation groove that mates with the first welding part. The bottom of the installation groove has a through hole that communicates with the insertion cavity. The insertion part extends into the insertion cavity through the through hole.

3. The waterproof connector assembly according to claim 2, characterized in that: The first welding part is integrally bent outward from the rear end of the terminal group, and the first welding part is attached to the inner side wall of the rear end of the mounting groove.

4. The waterproof connector assembly according to claim 1, characterized in that: The female base also includes a fixing foot, which is fixed to the rear end face of the first body. The rear end of the fixing foot is integrally bent to form a second welding part that mates with the external PCB board.

5. The waterproof connector assembly according to claim 4, characterized in that: The terminal group includes two terminals arranged symmetrically in the horizontal direction, and correspondingly, the mounting cavity and the connector are also arranged symmetrically in the horizontal direction; the fixing feet are two terminals arranged symmetrically in the vertical direction.

6. The waterproof connector assembly according to claim 1, characterized in that: The outer periphery of the second main body is provided with an annular mounting groove, and the first sealing ring is embedded in the mounting groove.

7. The waterproof connector assembly according to claim 1, characterized in that: The mounting cavity extends integrally inward from the opening facing the female seat to form a limiting part, and the end of the plug abuts against the inner wall of the limiting part.

8. The waterproof connector assembly according to claim 1, characterized in that: The connector is integrally recessed inward to form a contact portion, and the inner sidewall of the contact portion is in contact with the connector portion.

9. The waterproof connector assembly according to claim 1, characterized in that: The second sealing ring is a silicone ring, which has multiple elastic compression parts arranged laterally at intervals protruding outwards; the second sealing ring extends outwards from the mounting cavity.

10. The waterproof connector assembly according to claim 1, characterized in that: The first main body has a buckle hole, and the second main body has a pressing part, the movable end of which has a buckle part that cooperates with the buckle hole.

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