Insulating part fixing structure

Through the insulating member fixing structure where the metal retaining clip cooperates with the middle ring groove of the shell, the strict radial dimension requirements and environmental tolerance of the tail of the shell are solved, and the reliable fixation of the insulating member is achieved.

CN223218527UActive Publication Date: 2025-08-12ZHENGZHOU ASTRONAUTIC ELECTRONICS TECH
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Patent Information

Application Number
CN202422293530.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-15
Publication Date
2025-08-12
Estimated Expiration
2034-09-15

AI Technical Summary

Technical Problem

The fixing method of existing electrical connector insulators cannot be met when the radial dimensions of the tail of the housing are strictly required, and it is prone to fail in harsh environments.

Method used

The insulating member fixing structure is adopted where the metal retaining clip cooperates with the ring groove in the middle of the shell. The elastic claws and the ring groove steps are used to prevent the metal retaining clip from moving backwards, the rear end face of the insulating member is matched with the metal retaining clip edge to prevent the insulating member from moving backwards, and the housing step and the front end face of the insulating member are matched with the insulating member to prevent the insulating member from moving forwards.

Benefits of technology

Effectively reduce the radial size of the tail of the shell, improve the reliability and environmental resistance of the insulator fixing structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

An insulating part fixing structure is composed of a metal retaining clamp, a shell and an insulating part. An elastic clamping jaw is designed on the outer side of the circumference of the metal retaining clamp, the elastic clamping jaw pops up after being installed in an annular groove in the middle of the shell, the elastic clamping jaw is matched with a step of the annular groove to prevent the metal retaining clamp from moving backwards, and the rear end face of the insulating part is matched with a flange of the metal retaining clamp to prevent the insulating part from moving backwards. And the step on the shell is matched with the front end face of the insulating part to prevent the insulating part from moving forwards. The matching part of the insulator fixing part and the shell is located in the middle of the shell, compared with an insulator fixing structure with the matching part at the tail of the shell, the radial size of the tail of the shell can be reduced, meanwhile, the retaining clip made of the metal material has higher environment resistance, and the reliability of the insulator fixing structure can be improved.
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Description

Technical Field

[0001] The invention relates to an insulating component fixing structure, belongs to the technical field of electric connectors, and is suitable for occasions where connectors are compact in size and the reliability of the insulating component fixing structure is required to be high. Background Art

[0002] Currently, the main methods for fixing the insulating parts of electrical connectors include: fixing with elastic rings, fixing with nuts, fixing with glue, etc. The above structures have the following disadvantages:

[0003] The elastic retaining ring and nut fixing structure requires a large radial dimension space at the rear of the shell. For products with strict requirements on the radial dimension of the rear of the shell, these two fixing methods cannot meet the requirements; although the glue fixing structure can save the radial dimension of the rear of the shell, in places with relatively harsh application environments, long-term temperature stress cycles, radiation exposure and mechanical stress will accelerate the aging of the potting glue, thereby causing the attenuation and failure of the fixing function of the insulation parts.

[0004] The present invention uses a metal elastic retaining clip to achieve fixation between the insulating part and the shell. The elastic claws of the retaining clip are positioned with the annular groove located in the middle of the shell. Compared with the insulating part fixing structure at the tail of the shell, the mating part is conducive to reducing the radial size of the tail of the shell. At the same time, the retaining clip made of metal has stronger environmental resistance and can improve the reliability of the insulating part fixing structure. Summary of the Invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an insulating member fixing structure suitable for occasions with strict requirements on the radial dimensions of the shell tail, which can improve the reliability of the insulating member fixing structure.

[0006] The technical solution adopted by the present invention is: an insulating part fixing structure, which consists of a metal retaining clip, a shell and an insulating part; an elastic claw is designed on the outer side of the circumference of the metal retaining clip, and the elastic claw pops out after being installed in the ring groove in the middle of the shell. The elastic claw cooperates with the step of the ring groove to prevent the metal retaining clip from moving backward, and the rear end face of the insulating part cooperates with the retaining edge of the metal retaining clip to prevent the insulating part from moving backward; the step on the shell cooperates with the front end face of the insulating part to prevent the insulating part from moving forward.

[0007] The advantages of the present invention are that the elastic claws of the metal retaining clip and the matching part of the shell are located in the middle of the shell, which can effectively reduce the radial size of the tail of the shell. At the same time, the metal retaining clip has stronger environmental resistance and can improve the reliability of the insulating part fixing structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram (front view) of the present invention.

[0009] Figure 2 It is a schematic structural diagram of the metal retaining clip of the present invention.

[0010] Figure 3 It is a structural schematic diagram of the shell of the present invention.

[0011] Figure 4 It is a structural schematic diagram of the insulating member of the present invention. DETAILED DESCRIPTION

[0012] The present invention is described in detail below with reference to the accompanying drawings and specific examples.

[0013] The present invention Figure 1 As shown, it consists of a metal retaining clip (1), a shell (2) and an insulating member (3); the characteristics are: the metal retaining clip (1) is designed with an elastic claw (11) that cooperates with the annular groove (21) on the shell (2); the rear end face (31) of the insulating member cooperates with the retaining edge (12) of the metal retaining clip (1) to prevent the insulating member (3) from moving backward; the step (22) on the shell (2) cooperates with the front end face (32) of the insulating member to prevent the insulating member (3) from moving forward.

Claims

1. An insulating member fixing structure, comprising a metal retaining clip (1), a housing (2) and an insulating member (3); characterized in that: The metal retaining clip (1) is designed with an elastic claw (11) that cooperates with the annular groove (21) on the housing (2); the rear end face (31) of the insulating member cooperates with the retaining edge (12) of the metal retaining clip (1) to prevent the insulating member (3) from moving backward; the step (22) on the housing (2) cooperates with the front end face (32) of the insulating member to prevent the insulating member (3) from moving forward.