CN217215918U

CN217215918U - Elastic sheet type electromagnetic shielding joint

Info

Publication number: CN217215918U
Application number: CN202220337508.0U
Authority: CN
Inventors: 徐小元; 余志华; 单林章
Original assignee: Jiaxing Shengyang Electric Co Ltd
Current assignee: Jiaxing Shengyang Electric Co Ltd
Priority date: 2022-02-15
Filing date: 2022-02-15
Publication date: 2022-08-16
Anticipated expiration: 2032-02-15

Abstract

The utility model discloses a shell fragment formula electromagnetic shield connects, characterized by: comprises a shell, a sealing ring and an elastic shielding ring; the housing comprises a tubular body and a connecting cap which are connected with each other and made of POM or PPS material; the sealing ring is divided into a first section and a second section along the axial direction of the sealing ring, the first section is fixed in the connecting cap, and the second section extends into the tubular main body; the elastic shielding ring comprises a positioning ring clamped in the annular clamping groove, a moving ring movably matched in the tubular main body and an elastic sheet bent towards the center of the tubular main body. The utility model discloses in by the tubulose main part that POM or PPS material made with connect the cap, compare in prior art by the shell that metal connection cap and metal tubulose main part are constituteed, can show to reduce shell fragment formula electromagnetic shield and connect holistic weight, can also reduce the cost that shell fragment formula electromagnetic shield connects simultaneously.

Description

Elastic sheet type electromagnetic shielding joint

Technical Field

The utility model relates to a connect technical field, especially relate to a shell fragment formula electromagnetic shield connects.

Background

After the cable is laid, the sections of the cable must be connected together in order to form a continuous line, and these connections are called cable connectors. Nowadays, the metal joint of the cable has wide application. The method mainly comprises the fields of nuclear power stations, railways, communication, petrifaction, passenger cars, electric power and the like. Its main function is to connect and fix the cable, guarantees its high waterproof performance, fire behaviour and the electromagnetic compatibility function of requirement simultaneously. Thereby effectively forming long-term stable effective protection for the cable and the equipment.

In the prior art, the housings of various cable metal connectors are mainly made of copper materials or aluminum materials, and the cable metal connectors made of the materials have the following defects: 1. the product is heavy in mass; 2. the product price is high. There is therefore room for improvement in prior art cable metal joints.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a shell fragment formula electromagnetic shield connects has light in weight, characteristics with low costs.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a shell fragment formula electromagnetic shield connects, characterized by: comprises a shell, a sealing ring and an elastic shielding ring;

the housing comprises a tubular body and a connecting cap which are connected with each other and made of POM or PPS material;

the sealing ring is divided into a first section and a second section along the axial direction of the sealing ring, the first section is fixed in the connecting cap, and the second section extends into the tubular main body;

the elastic shielding ring comprises a positioning ring clamped in the annular clamping groove, a moving ring movably matched in the tubular main body and an elastic sheet bent towards the center of the tubular main body.

Preferably, the connecting cap is connected with the tubular main body through thread fit.

Preferably, the end of the connecting cap facing away from the tubular body has an internal flange against which the end of the first section abuts, the external diameter of the first section being greater than the external diameter of the second section, so as to form an external step on the sealing ring, which is supported on the end wall of the tubular body.

Preferably, an arc transition structure is arranged between the positioning ring and the elastic sheet.

Preferably, the positioning ring, the moving ring and the elastic sheet are of an integrated structure.

Compared with the prior art, the utility model has the advantages that: tubular main part and the connection cap made by POM or PPS material compare in prior art by the metal shell of connecting cap and metal tubular main part constitution, can show the holistic weight of reduction shell fragment formula electromagnetic shield joint, can also reduce the cost that shell fragment formula electromagnetic shield connects simultaneously.

Drawings

Fig. 1 is a cross-sectional view of a flip-chip type electromagnetic shielding connector provided in this embodiment;

fig. 2 is a schematic view of a sealing ring in the elastic sheet type electromagnetic shielding joint provided in this embodiment.

Detailed Description

The present invention will be further described with reference to fig. 1 to 2.

A shell fragment formula electromagnetic shield connects, characterized by: comprising a housing 1, a sealing ring 2 and an elastic shielding ring 4. The casing 1 comprises a tubular body 12 and a connecting cap 11, which are connected to each other and are made of POM or PPS material. The sealing ring 2 is divided along its axial direction into a first section 21 and a second section 22, the first section 21 being fixed in the connecting cap 11 and the second section 22 extending into the tubular body 12. The tubular main body 12 has an inner step 121 therein, an annular clamping groove 3 is formed between the inner step 121 and the end of the second section 22, and the elastic shielding ring 4 comprises a positioning ring 41 clamped in the annular clamping groove 3, a moving ring 43 movably fitted in the tubular main body 12, and a spring sheet 42 bent towards the center of the tubular main body 12.

Specifically, the connecting cap 11 is connected with the tubular body 12 through a thread fit. I.e. on the inner wall of the connecting cap 11, and on the outer side wall of the tubular body 12, with an outer thread cooperating with the inner thread in the connecting cap 11, whereby a screw-fit connection between the connecting cap 11 and the tubular body 12 is achieved.

The end of said connecting cap 11 facing away from the tubular body 12 has an internal flange 111 against which the end of the first section 21 abuts, said first section 21 having an external diameter greater than the external diameter of the second section 22 and forming an external step 23 on the sealing ring which is supported on the end wall of the tubular body 12. That is, in the state that the connection cap 11 is connected to the tubular main body 12, the end of the tubular main body 12 protrudes from the inner wall of the connection cap 11, so that the outer step 23 on the sealing ring 2 abuts against the inner wall, and the sealing ring 2 is positioned.

An arc transition structure is formed between the positioning ring 41 and the elastic sheet 42. Since the positioning ring 41 is defined between the sealing ring 2 and the inner step 121 of the tubular body 12, the arc transition structure can protect the end of the sealing ring 2, and avoid the problem that the end of the sealing ring 2 is scratched.

The positioning ring 41, the moving ring 43 and the elastic sheet 42 are integrated. This structure can promote the holistic structural strength of elasticity shield ring 4 and elasticity performance.

When specifically using, tubular main part 12 and the connection cap 11 of being made by POM or PPS material compare in the shell that comprises metal connection cap and metal tubular main part among the prior art, can show the holistic weight that reduces shell fragment formula electromagnetic shield and connect, can also reduce the cost that shell fragment formula electromagnetic shield connects simultaneously. When the shell 1 is required to have a conductive effect, the POM material may be selected as the material of the shell 1.

The assembly structure of the elastic shielding ring in the tubular main body can be adaptively deformed along with the insertion of the cable, so that the elastic shielding ring can be effectively contacted with the inserted cable, and the electromagnetic shielding effect is achieved.

Unless otherwise specified, in the present invention, if the terms "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are used for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art by referring to the drawings as appropriate.

Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass both fixed and removable connections, or integral connections; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A shell fragment formula electromagnetic shield connects, characterized by: comprises a shell, a sealing ring and an elastic shielding ring;

2. The shrapnel type electromagnetic shielding connector as claimed in claim 1, wherein: the connecting cap is connected with the tubular main body in a threaded fit mode.

3. The shrapnel type electromagnetic shielding connector as claimed in claim 2, wherein: one end of the connecting cap, which is back to the tubular main body, is provided with an inner flanging for abutting against the end part of the first section, and the outer diameter of the first section is larger than that of the second section, so that an outer step supported on the end wall of the tubular main body is formed on the sealing ring.

4. The shrapnel type electromagnetic shielding connector as claimed in claim 1, wherein: and an arc transition structure is arranged between the positioning ring and the elastic sheet.

5. The shrapnel type electromagnetic shielding connector as claimed in claim 1, wherein: the positioning ring, the moving ring and the elastic sheet are of an integrated structure.