CN203444797U

CN203444797U - Cable

Info

Publication number: CN203444797U
Application number: CN201320428982.5U
Authority: CN
Inventors: 叶时堃; 张�杰
Original assignee: Bozhou Lanto Electronic Ltd
Current assignee: Bozhou Lanto Electronic Ltd
Priority date: 2013-05-03
Filing date: 2013-07-18
Publication date: 2014-02-19
Anticipated expiration: 2023-07-18
Also published as: CN103854731A

Abstract

The utility model relates to a cable. The cable comprises conductors and insulating films, wherein the conductors are respectively covered with the insulating films, the insulating films are made of polyethylene, and the dielectric constant of the insulating films is relatively low. When the cable is used for transmitting high-frequency signals, the impedance is relatively low, and signal loss is reduced.

Description

Cable

Technical field

The utility model relates to a kind of cable, relates in particular to a kind of cable with dielectric film.

Background technology

Consumer electronics product is all to light, thin future development at present, as notebook computer, digital camera, mobile phone etc., and flexible flat cable (FFC) because of have softness, arbitrarily bending fold, thin thickness, volume little, connect the advantage such as simple and be widely used in consumer electronics product.The dielectric film that existing flat cable adopts is that polyethylene terephthalate (PET) material and PUR are made, and dielectric constant is higher, and especially, when cable transmission high-frequency signal, impedance is higher, causes the loss of signal larger.

So, be necessary to design a kind of new cable to solve the problems of the technologies described above.

Utility model content

The purpose of this utility model is to provide a kind of more low-impedance cable that has.

For realizing aforementioned object, the utility model adopts following technical scheme: a kind of cable, and the dielectric film that it comprises conductor and covers conductor, the material of described dielectric film adopts polyethylene.

As further improvement of the utility model, described cable is flexible flat cable.

As further improvement of the utility model, described cable comprises adhesive tape, screen and the insulated hull that covers successively from inside to outside dielectric film.

As further improvement of the utility model, described adhesive tape, screen and insulated hull are all set to one deck, and adhesive tape is between dielectric film and screen, and screen is between adhesive tape and insulated hull.

As further improvement of the utility model, described adhesive tape, screen and insulated hull are all set to two-layer, and described conductor and dielectric film are co-located between this two-layer adhesive tape, screen and insulated hull, and this two-layer insulated hull is positioned at the outermost of cable.

As further improvement of the utility model, described screen is Copper Foil or aluminium foil.

As further improvement of the utility model, described insulated hull is that polyethylene terephthalate materials is made.

As further improvement of the utility model, described adhesive tape is two-sided tape.

As further improvement of the utility model, described adhesive tape is substituted by adhesive.

The material of the utility model cable insulating film adopts polyethylene, and the dielectric constant of dielectric film is lower, and especially, when cable transmitting high-frequency signal, impedance is lower, has reduced the loss of signal.

Accompanying drawing explanation

Fig. 1 is the generalized section of the utility model the first execution mode cable.

Fig. 2 is the generalized section of the utility model the second execution mode cable.

Fig. 3 is the generalized section of the utility model the 3rd execution mode cable.

Embodiment

Please read shown in Fig. 1, the cable 100 of the utility model the first execution mode is flexible flat cable (FFC), it comprises the some conductors 10 as holding wire and earth connection use, described some conductors 10 configure in mode arranged side by side, and the two sides of conductor 10 is coated with dielectric film 20, and dielectric film 20 materials adopt polyethylene (PE), the dielectric constant of dielectric film 20 is lower, especially when cable 100 transmitting high-frequency signal, impedance is lower, has reduced the loss of signal.

Consult shown in Fig. 2, the cable 200 of the utility model the second execution mode, it comprises the some conductors 10 as holding wire and earth connection use, described some conductors 10 configure in mode arranged side by side, the two sides of conductor 10 is provided with dielectric film 20A to cover conductor 10, outer surface at dielectric film 20A is disposed with from inside to outside: two-sided tape 30, screen 40 and insulated hull 50, meanwhile, two-sided tape 30, screen 40 and insulated hull 50 from bottom to top fit together.

Dielectric film 20A is identical with the dielectric film 20 in the first execution mode, so this cable 200 can be reached the purpose of this utility model equally.Screen 40 is Copper Foil or aluminium foil, in order to the signal interference of shielded cable 100 outsides.Insulated hull 50 is made for polyethylene terephthalate materials.

Consult shown in Fig. 3, the cable 300 of the utility model the 3rd execution mode is with the difference of above-mentioned the second execution mode, the adhesive tape 30 of this cable 300, screen 40 and insulated hull 50 are all set to spaced apart from each other two-layer, conductor 10 and dielectric film 20C are co-located between this two-layer adhesive tape 30, screen 40 and insulated hull 50, the material of velum 20C also adopts polyethylene, so this cable 300 can be reached the purpose of this utility model too.

In other embodiments, adhesive tape 30 is substituted by adhesive, and adhesive adopts self-adhesive or PUR etc.

Although be example object, preferred implementation of the present utility model is disclosed, but those of ordinary skill in the art will recognize, in the situation that not departing from by the disclosed scope and spirit of the present utility model of appending claims, various improvement, increase and replacement are possible.

Claims

1. a cable, the dielectric film that it comprises conductor and covers conductor, is characterized in that: the material of described dielectric film adopts polyethylene.

2. cable according to claim 1, is characterized in that: described cable is flexible flat cable.

3. cable according to claim 2, is characterized in that: described cable comprises adhesive tape, screen and the insulated hull that covers successively from inside to outside dielectric film.

4. cable according to claim 3, is characterized in that: described adhesive tape, screen and insulated hull are all set to one deck, and adhesive tape is between dielectric film and screen, and screen is between adhesive tape and insulated hull.

5. cable according to claim 3, it is characterized in that: described adhesive tape, screen and insulated hull are all set to two-layer, described conductor and dielectric film are co-located between this two-layer adhesive tape, screen and insulated hull, and this two-layer insulated hull is positioned at the outermost of cable.

6. according to claim 3 to 5 cable described in wherein, it is characterized in that: described screen is Copper Foil or aluminium foil.

7. cable according to claim 6, is characterized in that: described insulated hull is that polyethylene terephthalate materials is made.

8. cable according to claim 6, is characterized in that: described adhesive tape is two-sided tape.

9. cable according to claim 6, is characterized in that: described adhesive tape is substituted by adhesive.