CN205452702U - Ageing -resistant shielding flat data line - Google Patents

Abstract

The utility model relates to a flexible flat data line especially relates to flexible shield flat data line's improvement. The utility model discloses ageing -resistant shielding flat data line, including the line body, aluminium membrane and metal reinforcement board, exposed and the formation joint of metallic conductor of line end of body, the metal reinforcement board bond in the tip of the line body, the aluminium membrane is pasted the surface of the line body and with metal reinforcement board electricity is connected, the metal reinforcement board connect the straight rack of sharp cusp that is equipped with a plurality of evaginations on the face of inserting, the line body go up the spraying and have PTFE membrane. It can be better improvement flexible shield flat data line's shielding effect, can also improve flat data line's aging resistance ability.

Description

Ageing-resistant shielded flat data wire

Technical field:

This utility model relates to flexible flat data wire, particularly relates to the improvement of flexible shielding flat data line.

Background technology:

Flexible shielding flat data line is a kind of flexible flat data line component for signal transmission, have can arbitrarily bend, high speed transmission of signals, shielding interference signal and can arbitrarily select the advantage such as wire count and spacing, make on line convenient, greatly reduce electronic product volume, reduce production cost, improve production efficiency；It is widely used in the various electronic products such as computer, printer, mobile phone, liquid crystal display connecting between parts, in modern electrical equipment, nearly ubiquitous.

Current flexible shielding flat data line is by wire body, aluminum film and metal reinforcement plate are constituted, wherein wire body is placed in two-layer coating by many parallel distributions and metallic conductor spaced apart from each other has between the insulation film of PUR and hot-forming constitutes, the metallic conductor of wire body end is exposed and forms joint, the one side of metal reinforcement plate is mucilage glue surface, for metal reinforcement plate being adhered to the end of wire body, to increase the mechanical strength of joint, the another side of metal reinforcement plate is to patch face, during for patching, metal reinforcement plate contacts with the ground electrode on socket and electrically connects, aluminum film is pasted onto the outer surface of wire body and electrically connects with metal reinforcement plate, thus operationally make aluminum film be in zero potential state all the time, play good shielding action.The weak point of the flexible shielding flat data line of this structure is；1. after metal reinforcement plate uses a period of time, the contact resistance between ground electrode on metal reinforcement plate and socket has a little increase, causing shield effectiveness to decline, this is mainly caused by the electrochemical reaction occurred after different metal material (or metal material of different component) contacts；2. to be often in the temperature difference big for flexible shielding flat data line, frequently flexure and bending, electromagnetic radiation pollution, chemical contamination, in the use environment that light pollution etc. are the most severe and complicated, even work in outdoor open-air atmosphere, colloid adhesion strength is easily caused to decline, metallic conductor is caused to deform with insulation film, cracking and separation, between metallic conductor, insulation impedance declines, metallic conductor play or off normal, have a strong impact on the electrical property of flexible flat data wire, even cause disorder and interruption that data transmit, and cause metallic conductor and insulation film deformation, cracking, one of reason separated is that insulation film is the strongest with the ageing-resistant performance of the PUR being coated on insulation film, in electromagnetic radiation pollution, chemical contamination, in the environment of the multiple polluter of light pollution etc. the most aging.There is no preferable solution at present, do not find in data and media report.

Utility model content:

For the above-mentioned deficiency existing for prior art, technical problem to be solved in the utility model is to provide for a kind of ageing-resistant shielded flat data wire, it can preferably reduce the contact resistance between the ground electrode on metal reinforcement plate and socket, improve the shield effectiveness of flexible shielding flat data line, the ageing-resistant performance of flat data line can also be improved, adverse circumstances are not easy deformation and cracking.

In order to solve above-mentioned technical problem, this utility model solves the scheme of technical problem: ageing-resistant shielded flat data wire, including wire body, aluminum film and metal reinforcement plate, the metallic conductor of described wire body end is exposed and forms joint, described metal reinforcement plate is adhered to the end of described wire body, described aluminum film is pasted onto the outer surface of described wire body and electrically connects with described metal reinforcement plate, the face that patches of described metal reinforcement plate is provided with the tooth bar that the sharp tooth of some evaginations is straight, and described wire body is coated with poly tetrafluoroethylene.

After using such scheme, owing to the face that patches of metal reinforcement plate is provided with the tooth bar that the sharp tooth of some evaginations is straight, after metal reinforcement plate inserts socket, contacted with ground electrode by patching the tooth bar of sharp tooth on face, reduce the contact area between the face of patching and ground electrode, patch pressure certain in the case of, add the footprint pressure between the face of patching and ground electrode, thus increase and patch the contact pressure between face and ground electrode, this makes the contact resistance patching between face and ground electrode be substantially reduced, aluminum film can preferably be in zero potential state, play good shielding action.On the other hand, poly tetrafluoroethylene it is coated with in wire body, politef has excellent chemical stability and anti-electromagnetic-radiation pollutes, light pollution performance, in electromagnetic radiation pollution, chemical contamination, the environment of the multiple polluter of light pollution etc. is not easy aging, not easily lead to metallic conductor deform with insulation film, cracking and separation, flexible flat data wire is wrapped by poly tetrafluoroethylene, be equivalent to wear a coat keeping out many heavily contaminateds to flexible flat data wire, improve stability and the reliability of flexible flat data wire, preferably ensure that the product quality of flexible flat data wire and service life and environmental suitability.

The bearing of trend of tooth bar is identical with direction of insertion so that metal reinforcement plate reduces the abrasion of pointed tooth on tooth bar during inserting socket, extends the service life of metal reinforcement plate.

Direction of insertion refers to direction of motion during metal reinforcement plate insertion socket.

Patching the tooth bar of sharp tooth on face to be processed to form by manufacturing the mould of plate body, its technique is uncomplicated, it is possible to realize.

The cross section of tooth bar is triangle, it is simple to compression molding.

Accompanying drawing illustrates:

Shielded flat data wire ageing-resistant to this utility model with detailed description of the invention further describes below in conjunction with the accompanying drawings.

Fig. 1 is the structural principle schematic diagram of this utility model ageing-resistant shielded flat data wire detailed description of the invention.

Fig. 2 is the structural principle schematic diagram of this utility model ageing-resistant shielded flat data wire metal stiffening plate.

Detailed description of the invention:

In Fig. 1, Fig. 2, ageing-resistant shielded flat data wire, including wire body 5, aluminum film 4 and metal reinforcement plate 1, the metallic conductor of wire body 5 end is exposed and forms joint 3, metal reinforcement plate 1 is adhered to the end of wire body 5, and aluminum film 4 is pasted onto the outer surface of wire body 5 and electrically connects with metal reinforcement plate 1, and the face that patches of metal reinforcement plate 1 is provided with the tooth bar 2 that the sharp tooth of some evaginations is straight, the cross section of tooth bar 2 is triangle, it is simple to compression molding.Wire body 5 on be coated with poly tetrafluoroethylene 6.

Claims (2)

1. The most ageing-resistant shielded flat data wire, including wire body (5), aluminum film (4) and metal reinforcement plate (1), the metallic conductor of described wire body (5) end is exposed and forms joint (3), described metal reinforcement plate (1) is adhered to the end of described wire body (5), described aluminum film (4) is pasted onto the outer surface of described wire body (5) and electrically connects with described metal reinforcement plate (1), it is characterized in that: the face that patches of described metal reinforcement plate (1) is provided with the tooth bar (2) that the sharp tooth of some evaginations is straight, it is coated with poly tetrafluoroethylene (6) in described wire body (5).
2. Ageing-resistant shielded flat data wire the most according to claim 1, is characterized in that: the cross section of described tooth bar (2) is triangle.