CN210956226U

CN210956226U - Metal pre-braided tube applied to wire harness signal shielding

Info

Publication number: CN210956226U
Application number: CN201922473230.0U
Authority: CN
Inventors: 江华新
Original assignee: Suzhou Cmr Electronic Devices Co ltd
Current assignee: Suzhou Cmr Electronic Devices Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-07-07
Anticipated expiration: 2029-12-31

Abstract

Be applied to pencil signal shielding's metal and weave the pipe in advance, the metal is woven the pipe in advance and is included hot melt adhesive layer and weaving layer, the side week of hot melt adhesive layer is located to the weaving layer, the weaving layer includes inboard weaving layer and outside weaving layer, the side week of inboard weaving layer is located to the outside weaving layer, the inboard weaving layer is woven the braided shield that forms with the cross mode for the naked line of metal, the outside weaving layer is woven the braided shield that forms with the cross mode for copper foil wire and naked line of metal, the metal is woven in advance and is still equipped with on the pipe and weaves the ground wire, copper foil and outside weaving layer fixed connection are passed through to the one end. The utility model provides a weaving layer adopts bilayer structure, has improved signal shielding ability to still be equipped with the braided ground wire, the utility model provides a metal pre-weaving tubular construction with signal shielding function is simple, and shielding ability is outstanding, and application scope is wide, is fit for promoting.

Description

Metal pre-braided tube applied to wire harness signal shielding

Technical Field

The utility model relates to a cable technical field, in particular to be applied to wire harness signal shielding's metal and weave the pipe in advance.

Background

Due to special requirements of customers, the shielding requirements of individual wire harness products on signals are particularly strict, and common wire harnesses cannot meet the requirements. The prior art reduces the signal interference by adopting a multi-core wire with a shielding layer, but has the following two problems:

1. for a complex wire harness, the whole multi-core wire with the shielding layer cannot be used, and the shielding effect on signals is greatly reduced.

2. The shielding of the whole product is difficult to realize because a plurality of multi-core wires are used by individual products.

Therefore, in order to overcome the defects of the prior art, a metal pre-braided tube applied to the wiring harness signal shielding needs to be designed.

SUMMERY OF THE UTILITY MODEL

For overcoming the not enough among the above-mentioned prior art, the utility model aims to provide a be applied to pencil signal shielding's metal and weave the pipe in advance.

In order to achieve the above objects and other related objects, the present invention provides a technical solution: be applied to the metal of pencil signal shielding and weave pipe in advance, its characterized in that: weave the pipe and include hot melt adhesive layer and weaving layer, the weaving layer is located the side week of hot melt adhesive layer, the weaving layer includes inboard weaving layer and outside weaving layer, the outside weaving layer is located the side week of inboard weaving layer, the inboard weaving layer is woven the braided shield that forms with the cross mode for the naked line of metal, the outside weaving layer is woven the braided shield that forms with the cross mode for copper foil wire and naked line of metal, the metal still is equipped with in advance weaves the pipe and weaves the ground wire, the one end of weaving the ground wire pass through the copper foil with outside weaving layer fixed connection, the other end of weaving the ground wire is equipped with ground terminal.

The preferable technical scheme is as follows: d1 > D2, where D1 represents the outer diameter of the copper foil wire of the outer woven layer and D2 represents the outer diameter of the bare metal wire of the outer woven layer.

The preferable technical scheme is as follows: the ratio D1/D2 between D1 and D2 is 1.2 to 2.

Because of the application of the technical scheme, the utility model discloses the beneficial effect who has does:

the utility model provides a weaving layer adopts bilayer structure, has improved signal shielding ability to still be equipped with and weave the ground wire, weave the branch that the ground wire can ground according to the demand, fix and connect outside weaving layer and weave the ground wire through the copper foil.

Drawings

Fig. 1 is a sectional view of the present invention.

In the above drawings, 1, a hot melt adhesive layer; 2. weaving layer; 3. an inner braid; 4. an outer braid; 5. copper foil; 6. weaving a ground wire; 7. and a ground terminal.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Please refer to fig. 1. It should be understood that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the product of the present invention is usually placed when in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, and a connection 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.

As shown in fig. 1, the metal pre-braided tube applied to the wiring harness signal shielding comprises a hot melt adhesive layer 1 and a braided layer 2 arranged at the side wall of the hot melt adhesive layer 1; wherein, hot melt adhesive layer 1 is used for and locates cable protective layer fixed connection in it, and weaving layer 2 then possesses the function of shielding interference signal.

The braided layer 2 comprises an inner braided layer 3 and an outer braided layer 4 arranged on the side wall of the inner braided layer 3; the inner braid 3 is a braided shield formed by braiding bare metal wires in a crossed manner, and the outer braid 4 is a braided shield formed by braiding copper foil wires and bare metal wires in a crossed manner. When the diameter of the copper foil wire is D1 and the diameter of the bare metal wire is D2, the ratio D1/D2 is preferably 1.2 or more and 2 or less in order to improve the bending resistance and the twisting resistance without increasing the resistance of the braided shield conductor.

Braided ground wire 6 is provided on the metal pre-braided tube, one end of braided ground wire 6 is fixedly connected to outer braid 4 via copper foil 5, and the other end of braided ground wire 6 is connected to ground terminal 7.

Therefore, the utility model has the advantages of it is following:

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. Be applied to the metal of pencil signal shielding and weave pipe in advance, its characterized in that: weave the pipe and include hot melt adhesive layer and weaving layer, the weaving layer is located the side week of hot melt adhesive layer, the weaving layer includes inboard weaving layer and outside weaving layer, the outside weaving layer is located the side week of inboard weaving layer, the inboard weaving layer is woven the braided shield that forms with the cross mode for the naked line of metal, the outside weaving layer is woven the braided shield that forms with the cross mode for copper foil wire and naked line of metal, the metal still is equipped with in advance weaves the pipe and weaves the ground wire, the one end of weaving the ground wire pass through the copper foil with outside weaving layer fixed connection, the other end of weaving the ground wire is equipped with ground terminal.

2. The metal pre-braided tube applied to a wire harness signal shield as claimed in claim 1, wherein: d1 > D2, where D1 represents the outer diameter of the copper foil wire of the outer woven layer and D2 represents the outer diameter of the bare metal wire of the outer woven layer.

3. The metal pre-braided tube applied to a wire harness signal shield as claimed in claim 2, wherein: the ratio D1/D2 between D1 and D2 is 1.2 to 2.