CN2430764Y

CN2430764Y - Improved transmission conductor shield structure of blocking electromagnetic wave interference

Info

Publication number: CN2430764Y
Application number: CN 00239219
Authority: CN
Inventors: 罗景远
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-06-06
Filing date: 2000-06-06
Publication date: 2001-05-16
Anticipated expiration: 2010-06-06

Abstract

The utility model relates to an improved transmission and electricity conductive shield structure for blocking electromagnetic wave interference. The structure is provided with transmission and electricity conductive wires which are used for transmitting electronic signals and connecting with a power supply, while the surfaces of the transmission and electricity conductive wires are covered with plastic insulators. The surfaces of the plastic insulators are wound with textiles with the function of shielding the electromagnetic waves (EMI). The transmission and electricity conductive wires not only can block the electromagnetic wave interference (EMI) generated by the transmission and electricity conductive wires or the external environment effectively through the textiles, but also can be fixed together tightly through winding. Therefore, when the covering insulators at the surfaces of the transmission and electricity conductive wires are molded in an injection mode, the transmission and electricity conductive wires can not be scattered and have the function of shaping.

Description

The transmission conductor wire shielding construction of follow-on obstruct Electromagnetic Interference

The utility model relates to the transmission conductor wire shielding construction of a kind of obstruct itself and external environment electromagnetic wave (EMI) interference, refer in particular to and a kind ofly be wrapped in transmission conductor wire periphery, the transmission conductor wire shielding construction that follow-on obstruct electromagnetic wave (EMI) disturbs by the yarn fabric that can intercept Electromagnetic Interference.

General existing Cable structure, as shown in Figure 1, its structure is two electric wires 100, these two electric wire 100 surfaces are coated with insulation plastic casing-pipe 101, has the conductor wire of forming by copper wire 102 in this insulation plastic casing-pipe 101, then has filler 200 at these 100 in two electric wires, this filler 200 is filled in 100 in these two electric wires, and two electric wires 100 are coated fully, form the shape of a circle, so that aluminium foil or Copper Foil wheat draw 300 to be easy to twine in its surface, after these two electric wires 100 are fixed together, again with its periphery of guard 400 fits by metal wire knitted one-tenth, at last, mode by ejection formation again, make plastic cement 500 be coated on its surface, this kind structure in use, must draw earlier 300 winding by aluminium foil or Copper Foil wheat, two electric wires 100 are fixed together, and because of it is that mode with metal wire knitted is made into as the guard 400 that intercepts electromagnetic wave (EMI), so no matter on making or all very time-consuming on assembling, and cost height, because of using metal wire knitted, so Heavy Weight, relative cost of transportation also significantly increases simultaneously.

Main purpose of the present utility model is to provide the transmission conductor wire shielding construction of a kind of follow-on obstruct itself and external environment electromagnetic wave (EMI) interference.

The utility model is provided with the transmission conductor wire, and this transmission conductor wire is to be used for transmitting electric signal or to be connected with power supply, and this transmission conductor wire surface is coated with the plastic cement insulator, and this plastic cement insulator surface then twines the yarn fabric with shielding electromagnetic wave (EMI); This transmission conductor wire not only can reach the electromagnetic wave (EMI) that external environment produced by the effective obstruct of this yarn fabric itself and disturb, and can closely be fixed together by its winding, and the insulation cladding that makes its surface is when ejection formation, and this transmission conductor wire is unlikely to scatter and have the setting function.

Effect of the present utility model is: because of simple in structure, the cost price that can significantly shorten working hours, increase production efficiency and above-mentioned yarn fabric is lower, more can alleviate whole cable finished weight, relatively also reduce cost of transportation, simultaneously because above-mentioned yarn fabric has more flexibility, bending can not fracture easily, has more increased the market competitiveness.

Below be description of drawings of the present utility model:

Fig. 1 is the schematic diagram of existing structure.

Fig. 2 is the cross-sectional schematic of the utility model embodiment.

Below in conjunction with accompanying drawing the utility model is described in detail.

The utility model is the transmission conductor wire shielding construction that a kind of follow-on obstruct electromagnetic wave (EMI) disturbs, and this transmission conductor wire can be general electric wire, coaxial cable hyperfrequency (more than the 100MBz) signal transmission line ... or the like.Fig. 2 is an embodiment of the present utility model, this structure is provided with the transmission conductor wire of being separated by electrical insulator 10 (is the sleeve pipe that plastic cement is made at present embodiment) 20 (is copper cash at present embodiment), this transmission conductor wire 20 is to be used for transmission electronic signal or be connected with power supply, has filler 13 in 10 in two electric wires, then be wound with the yarn fabric of making by special material 30 with shielding electromagnetic wave (EMI) interference function on the surface of this transmission conductor wire 20, at present embodiment is to mix up to have the yarn fabric of multiple metal material (to be familiar with this skill person, still can other element be replaced), this yarn fabric 30 not only can effectively intercept electromagnetic wave (EMI) interference that transmission conductor wire 20 is produced, and this conductor wire 20 and electrical insulator 10 closely can be fixed together, and be coated with cladding 40 on these yarn fabric 30 surfaces through ejection formation, this cladding 40 is to be made by plastic cement, so, make cladding 40 when ejection formation, these conductor wire 20 unlikely scattering, simultaneously, use the metal wire knitted mode because of using this yarn fabric canoe to replace tradition, reach the shield effectiveness that effective obstruct electromagnetic wave (EMI) disturbs, so not only reduce the operating time, increase production efficiency, more because weight is lighter, relative cost of transportation is also saved greatly, has better flexibility because of this yarn fabric simultaneously, bending can not fracture easily, has more increased the competitive advantage in market.

Claims

1, a kind of transmission conductor wire shielding construction of follow-on obstruct Electromagnetic Interference, this structure is provided with electric wire, the electric wire surface is coated with insulator, the transmission conductor wire that is provided with the transmission electronic signal in this insulator or is connected with power supply, and has filler between the electric wire, its outside is provided with the insulation cladding through ejection formation, it is characterized in that: be provided with the fabric layer of an obstruct Electromagnetic Interference between this cladding and the electric wire, this fabric layer is twined electric wire and closely is fixed together.

2, the transmission conductor wire shielding construction of the described follow-on obstruct Electromagnetic Interference of claim 1 is characterized in that: above-mentioned fabric layer can be mixes up the nonwoven layer that multiple metal material is arranged.