Small-size electric connector

By employing in-mold injection molding and a surface-mount terminal design, the problems of large size and high cost of electrical connectors have been solved, resulting in small-sized, high-performance, and low-cost electrical connectors suitable for applications such as electric vehicles.

CN223471857UActive Publication Date: 2025-10-24WENYI PRECISION TECH (SHANGHAI) CO LTD
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Patent Information

Application Number
CN202422798466.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-15
Publication Date
2025-10-24
Estimated Expiration
2034-11-15

AI Technical Summary

Technical Problem

Existing electrical connectors are insufficient in terms of size and cost, making it difficult to meet the high requirements of fields such as electric vehicles.

Method used

A small-volume electrical connector was designed, and the socket assembly was manufactured using in-mold injection molding. It uses a surface-mount terminal and a sealing structure, combined with a flexible locking mechanism, to achieve convenient docking of the plug and socket, reducing the number of parts and assembly complexity.

Benefits of technology

This has resulted in a small-sized, high-performance, and low-cost electrical connector, simplifying the assembly process and improving stability and sealing.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223471857U_ABST
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Abstract

The utility model discloses a small-size electric connector comprising a socket assembly which is connected with a plug assembly. The socket assembly comprises a socket shell, a hook is arranged at the bottom of the inner side of the socket shell, limiting columns are arranged on the four sides of the top of the socket shell, a socket sealing gasket is installed on the top of the socket shell and arranged on the lower sides of the limiting columns, and copper bars are installed on the two sides of the top of the socket shell. The plug assembly comprises a plug shell, a plug tail cover is installed at the bottom of the plug shell, a plug sealing ring is installed on the outer side of the top of the plug shell, an elastic lock catch is arranged on the side, corresponding to the hook, of the plug shell, sheet type terminals are installed on the two sides of the interior of the plug shell, and clamping jaws are arranged on the front sides and the rear sides of the sheet type terminals. A limiting end face is arranged at the position, corresponding to the clamping jaw, of the plug shell, the clamping jaw is arranged in the limiting end face, and wire sealing bodies are arranged at the bottoms of the sheet-type terminals on the two sides and installed at the bottom of the plug shell.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of electric connector, specifically relates to a small size electric connector. BACKGROUND

[0002] Electric connector is indispensable element in electronic and electrical device. With the renewal of electronic and electrical device, electric connector has developed into quite mature product, and with the rise of electric automobile, automobile electric connector has become new hotspot of connector application, with the development of industry and the price reduction of whole car, the volume, cost and performance of electric connector have higher requirement, under the premise of guaranteeing quality, electric connector needs to consider small volume and low cost, therefore, it is necessary to improve the existing electric connector to solve the above problems. SUMMARY

[0003] In view of the problems in the above background technology, the utility model aims at providing a small size electric connector.

[0004] To achieve the above technical purpose, the utility model adopts the following technical scheme:

[0005] A small size electric connector, including socket assembly, the socket assembly is connected with plug assembly;

[0006] The socket assembly includes socket shell, the inner side bottom of socket shell is equipped with hook, the top four sides of socket shell are equipped with limiting post, the top of socket shell is installed with socket sealing gasket, socket sealing gasket is arranged in the downside of limiting post, the both sides of top of socket shell are installed with copper bar;

[0007] The plug assembly includes plug shell, the bottom of plug shell is installed with plug tail cover, the top outside of plug shell is installed with plug sealing ring, the inside of plug shell is equipped with elastic lock catch on the side corresponding to hook, the both sides of inside of plug shell are installed with sheet type terminal, the front and rear sides of sheet type terminal are equipped with claw, the inside of plug shell is equipped with limiting end face at the position corresponding to claw, claw is arranged in limiting end face, the bottom of both sides of sheet type terminal is equipped with wire sealing body, wire sealing body is installed in the bottom of plug shell.

[0008] Further limit, the outside of copper bar is installed with press rivet nut, the inside of copper bar is equipped with limiting hole. Such structural design is convenient for installation connection.

[0009] Further limit, the outside of plug shell is equipped with limiting slot, plug sealing ring is installed in limiting slot. Such structural design is convenient for fixed installation plug sealing ring.

[0010] Further limited, the bottom of the plug shell is provided with limit block on both sides, the plug tail cover is provided with stop block on both sides at corresponding limit block. Such structure design facilitates the fixed connection installation of the plug shell and the plug tail cover.

[0011] Further limited, the sheet terminal is further connected with a wire, the bottom of the wire sequentially penetrates the wire sealing body and the plug tail cover, and extends to the outside thereof. Such structure design facilitates the connection use.

[0012] The socket assembly and the plug assembly are convenient to plug, do not need to press a button or other operations, and can be directly plugged and locked, the socket shell uses a mode of in-mold injection, greatly increases product stability and reduces volume, the sealing gasket at the socket end and the sealing ring and the wire sealing body at the plug end ensure that the plug and the socket are matched, meet sealing requirements, the sheet terminal is used at the plug end, low cost, small volume and high performance are considered, the utility model has the advantages of simple structure, convenient operation, low cost, small volume, high performance and strong practicality. BRIEF DESCRIPTION OF DRAWINGS

[0013] The utility model can be further illustrated by the non-limiting embodiments shown in the drawings;

[0014] Figure 1 It is an axial side structure schematic view of a small-volume electric connector according to an embodiment of the utility model;

[0015] Figure 2 It is a central cross-sectional structure schematic view of a small-volume electric connector according to an embodiment of the utility model;

[0016] Figure 3 It is a sheet terminal cross-sectional structure schematic view of a small-volume electric connector according to an embodiment of the utility model;

[0017] Figure 4 It is an axial side structure schematic view of a socket assembly of a small-volume electric connector according to an embodiment of the utility model;

[0018] Figure 5 It is an axial side structure schematic view of a plug assembly of a small-volume electric connector according to an embodiment of the utility model;

[0019] The main element symbols are explained as follows:

[0020] The socket assembly 1, the plug assembly 2, the socket shell 3, the hook 4, the limit post 5, the socket sealing gasket 6, the copper bar 7, the plug shell 8, the plug tail cover 9, the plug sealing ring 10, the elastic lock 11, the sheet terminal 12, the clamping jaw 13, the limit end face 14, the wire sealing body 15, the press rivet nut 16, the limit hole 17, the limit groove 18, the limit block 19, the stop block 20, the wire 21. DETAILED DESCRIPTION

[0021] In order for those skilled in the art to better understand the present application, the technical scheme of the present application is further described below in conjunction with the drawings and examples.

[0022] As shown in Figures 1-5 The socket assembly 1 is connected with the plug assembly 2.

[0023] The socket assembly 1 includes a socket shell 3, the inner side bottom of the socket shell 3 is provided with a hook 4, the top four sides of the socket shell 3 are provided with limiting columns 5, the top of the socket shell 3 is installed with a socket sealing pad 6, the socket sealing pad 6 is arranged on the lower side of the limiting column 5, and the top two sides of the socket shell 3 are installed with copper bars 7.

[0024] The plug assembly 2 includes a plug shell 8, the bottom of the plug shell 8 is installed with a plug tail cover 9, the top outer side of the plug shell 8 is installed with a plug sealing ring 10, the plug shell 8 is provided with an elastic lock catch 11 on the side corresponding to the hook 4, the inside two sides of the plug shell 8 are installed with sheet type terminals 12, the front and rear two sides of the sheet type terminals 12 are provided with clamping jaws 13, the plug shell 8 is provided with limiting end faces 14 at the positions corresponding to the clamping jaws 13, the clamping jaws 13 are arranged in the limiting end faces 14, the bottom of the two side sheet type terminals 12 is provided with wire sealing bodies 15, and the wire sealing bodies 15 are installed at the bottom of the plug shell 8.

[0025] Preferably, the outer side of the copper bar 7 is installed with a press rivet nut 16, and the inner side of the copper bar 7 is provided with a limiting hole 17. Such a structure design is convenient for installation and connection. In fact, other installation and connection structure shapes of the copper bar 7 can also be considered according to specific conditions

[0026] Preferably, the outer upper side of the plug shell 8 is provided with a limiting groove 18, and the plug sealing ring 10 is installed in the limiting groove 18. Such a structure design is convenient for fixing and installing the plug sealing ring 10. In fact, other switch structure shapes of the plug shell 8 can also be considered according to specific conditions

[0027] Preferably, the bottom two sides of the plug shell 8 are provided with limiting blocks 19, and the two sides of the plug tail cover 9 are provided with retreat stopping blocks 20 at positions corresponding to the limiting blocks 19. Such a structure design is convenient for fixedly connecting and installing the plug shell 8 and the plug tail cover 9. In fact, other connection structure shapes of the plug shell 8 and the plug tail cover 9 can also be considered according to specific conditions

[0028] Preferably, the sheet type terminal 12 is further connected with a wire 21, the bottom of the wire 21 penetrates the wire sealing body 15 and the plug tail cover 9 in sequence and extends to the outside thereof. Such a structure design is convenient for connection and use. In fact, other connection structure shapes of the sheet type terminal 12 can also be considered according to specific conditions

[0029] In the embodiment, the electric connector is composed of a socket assembly 1 and a plug assembly 2, the socket assembly 1 is composed of a socket shell 3 and a socket sealing gasket 6, the socket shell 3 is formed by in-mold injection with a copper bar 7 and a press-in nut 16, in order to ensure the pull-out force requirement of the copper bar 7, a limiting hole 17 is formed in the middle of the copper bar 7 to ensure the pull-out force requirement, the plug assembly 2 is composed of a plug shell 8, a plug tail cover 9, a plug sealing ring 10, a wire sealing body 15 and a sheet terminal 12.

[0030] In the installation, the socket sealing gasket 6 is clamped into the four limiting columns 5 of the socket shell 3 to form the socket assembly 1, the plug sealing ring 10 is clamped into the limiting groove 18 of the plug shell 8, then the clamping jaw 13 of the sheet terminal 12 is clamped into the limiting end face 14 of the plug shell 8, the wire sealing body 15 is installed, finally the retreat stopping block 20 of the plug tail cover 9 is clamped into the limiting block 19 of the plug shell 8 to form the plug assembly 2, the plug assembly 2 is inserted into the socket assembly 1, the elastic lock 11 of the plug shell 8 is completely buckled with the hook 4 of the socket shell 3, and the assembly is completed.

[0031] The socket assembly 1 is formed by in-mold injection, the quality and the volume are considered, the whole socket part only has a sealing gasket except the in-mold injection part, the structure is simple, the assembly time is reduced, the plug assembly 2 part uses the sheet terminal with large current, the sheet terminal has better performance and lower cost than the traditional round terminal (the sheet terminal is formed by sheet metal process without machining, so the cost is lower), and after the sheet terminal is selected, the volume of the connector can be reduced, the locking mechanism of the plug part and the shell are integrated, multiple parts are not needed, the mold cost is reduced, and the assembly time is also reduced.

[0032] The above embodiment only exemplarily illustrates the principle and effect of the utility model, and is not used for limiting the utility model. Any person skilled in the art can modify or change the above embodiment without departing from the spirit and category of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought of the utility model should be covered by the claims of the utility model.

Claims

1. A small volume electrical connector characterized by: Including the socket assembly (1), the plug assembly (2) is connected; The socket assembly (1) includes a socket shell (3), the inner side bottom of the socket shell (3) is provided with a hook (4), the top four sides of the socket shell (3) are provided with limiting column (5), the top of the socket shell (3) is provided with socket gasket (6), the socket gasket (6) is arranged in the lower side of the limiting column (5), the top of the socket shell (3) is provided with copper bar (7) on both sides; The plug assembly (2) includes a plug shell (8), the bottom of the plug shell (8) is provided with a plug tail cover (9), the top of the plug shell (8) is provided with a plug seal ring (10), the plug shell (8) is provided with an elastic lock (11) on the side corresponding to the hook (4), the inside of the plug shell (8) is provided with a sheet type terminal (12) on both sides, the front and back of the sheet type terminal (12) is provided with a jaw (13), the plug shell (8) is provided with a limiting end face (14) corresponding to the jaw (13), the jaw (13) is arranged in the limiting end face (14), the bottom of the sheet type terminal (12) is provided with a wire sealing body (15), the wire sealing body (15) is arranged on the bottom of the plug shell (8).

2. A small volume electrical connector according to claim 1, characterised in that: The outer side of the copper bar (7) is provided with a press-in nut (16), the inner side of the copper bar (7) is provided with a limiting hole (17).

3. A small volume electrical connector according to claim 2, characterised in that: The outer side of the plug shell (8) is provided with a limiting groove (18), and the plug seal ring (10) is arranged in the limiting groove (18).

4. A small volume electrical connector according to claim 3, characterised in that: The bottom of the plug shell (8) is provided with a limiting block (19), and the two sides of the plug tail cover (9) are provided with a retreat block (20) corresponding to the limiting block (19).

5. A small volume electrical connector according to claim 4, characterised in that: The sheet type terminal (12) is further connected with a wire (21), the bottom of the wire (21) penetrates the wire sealing body (15) and the plug tail cover (9) in sequence and extends to the outside.