CN217134042U

CN217134042U - Composite shielded cable

Info

Publication number: CN217134042U
Application number: CN202220341581.5U
Authority: CN
Inventors: 闵海华
Original assignee: Wuxi Huacheng Cable Co ltd
Current assignee: Wuxi Huacheng Cable Co ltd
Priority date: 2022-02-21
Filing date: 2022-02-21
Publication date: 2022-08-05
Anticipated expiration: 2032-02-21

Abstract

The utility model discloses the technical field of cables, in particular to a composite shielding cable, which comprises a protective part, a shielding part and a conductor, the number of the conductors is three, the conductors are all cylindrical, the outer side of each conductor is provided with a protection component, the inner wall of the second insulating layer is wrapped on the outer wall of the conductor, the second protective layer is fixed on the outer wall of the second insulating layer, the inner wall of the wear-resistant layer is fixedly connected with a waterproof layer, the inner wall of the waterproof layer is fixedly connected with a first insulating layer in a sleeving manner, the inner wall of the first shielding layer is fixedly connected with the outer wall of the first insulating layer, the outer wall of the first shielding layer is fixedly connected with the inner wall of the first insulating layer, the inner wall of the heat insulation layer is fixedly connected with the first protective layer in a sleeved mode, and the conductor is placed in the first protective layer to play a role in enabling the cable to have wear resistance, water resistance and insulation.

Description

Composite shielded cable

Technical Field

The utility model relates to a cable field, concretely relates to compound shielded cable.

Background

The shielding cable is a transmission line which wraps a signal wire by using a metal mesh braid, the shielding is to ensure the transmission performance of a system in an electromagnetic interference environment, the anti-interference performance comprises two aspects, namely the capability of resisting external electromagnetic interference and the capability of radiating electromagnetic interference outwards by the system, theoretically, a metal material shielding layer is coated on the outer surfaces of a cable and a connecting piece, unnecessary electromagnetic waves can be effectively filtered, for the shielding system, the metal shielding layer is not enough, more importantly, the shielding layer must be completely and well grounded, so that the interference current can be effectively led into the ground, but in the practical construction, the shielding system has some non-negligible difficulties: because of the harsh requirement of the shielding system on grounding, poor grounding is easily caused, such as overlarge grounding resistance, unbalanced grounding potential and the like, so that a potential difference is generated between certain two points of the transmission system, and further current on the metal shielding layer is generated, the shielding layer is discontinuous, and the integrity of the shielding layer is damaged, at the moment, the shielding layer per se becomes a maximum interference source, so that the performance of the shielding layer is far inferior to that of a non-shielding system; when the shielding wire is used for high-frequency transmission, two ends of the shielding wire are required to be grounded, so that potential difference is more likely to be generated on the shielding layer; it follows that the requirements of the shielding system itself constitute precisely the greatest obstacle to ensuring its performance; a complete shielded system requires shielding everywhere, and once any shielding at any point fails to meet the requirement, the overall transmission performance of the system is inevitably affected.

The prior art has the following defects: the waterproof performance and the wear resistance of current compound shielded cable are all relatively poor, and some cables are arranged outdoors, often can be drenched by the rainwater, so take place to damage easily, and the cable can with ground or other object surface friction in the wiring process, so the wear resistance is relatively poor, also takes place to damage easily.

Therefore, a need exists for a composite shielded cable.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a composite shielded cable is equipped with the protection part through the outside at the conductor, is equipped with filling layer, protective layer one, insulating layer, shielding layer one, insulating layer one, waterproof layer and wearing layer in proper order in the outside of protection part to the waterproof performance and the wear resistance of solving composite shielded cable are all relatively poor, and the problem of damage takes place outdoor easy for the cable layout.

In order to achieve the above object, the present invention provides the following technical solutions: a composite shielded cable comprises three conductors, wherein the conductors are cylindrical, a protective component is arranged on the outer side of each conductor, the protective component is positioned on the outer side of the protective component, and a shielding component is arranged on the outer side of each conductor;

the protection component is an insulating layer II and a protection layer II, the insulating layer II is in a circular tube shape, and the inner wall of the insulating layer II wraps the side wall of the outer end of the conductor.

Preferably, the second protective layer is located on the outer side of the second insulating layer, the second protective layer is in a circular tube shape, the second protective layer is sleeved on the outer wall of the second insulating layer, and the inner wall of the second protective layer is fixedly connected with the outer wall of the second insulating layer.

Preferably, the protective part includes the wearing layer, the shape of wearing layer is the pipe form, through the mode fixedly connected with waterproof layer that cup joints on the inner wall of wearing layer, the shape of waterproof layer is the pipe form, the inner wall of waterproof layer is through the mode fixedly connected with insulating layer one that cup joints, the shape of insulating layer one is the pipe form, the inboard of insulating layer one is equipped with the insulating layer.

Preferably, the thermal insulation layer is in a circular tube shape, the inner wall of the thermal insulation layer is fixedly connected with a first protective layer in a sleeved connection mode, and the first protective layer is in a circular tube shape.

Preferably, the inside of the first protective layer is filled with a filling layer, and the three second protective layers are all wrapped by the filling layer.

Preferably, the shielding component comprises a first shielding layer, the first shielding layer is in a circular tube shape, the first shielding layer is located between the first insulating layer and the thermal insulating layer, the inner wall of the first shielding layer is fixedly connected with the outer wall of the thermal insulating layer, and the outer wall of the first shielding layer is fixedly connected with the inner wall of the first insulating layer.

Preferably, the first shielding layer is a metal braid layer, and the material of the first shielding layer is woven by one of red copper or tinned copper.

Preferably, the protection part is insulating layer three, protective layer three and shielding layer two, the shape of insulating layer three is the pipe form, the inner wall of insulating layer three is through the mode fixedly connected with shielding layer two that cup joints, the shape of shielding layer two is the pipe form, the inner wall parcel of shielding layer two is on the outer end lateral wall of conductor, and the protective layer three is in the outside of insulating layer three, the shape of protective layer three is the pipe form, the inner wall of protective layer three and the outer wall fixed connection of insulating layer three.

The utility model has the advantages that:

1. the waterproof layer is fixedly connected to the inner wall of the wear-resistant layer, the first insulating layer is fixedly connected to the inner wall of the waterproof layer in a sleeving manner, the inner wall of the first shielding layer is fixedly connected with the outer wall of the thermal insulation layer, the outer wall of the first shielding layer is fixedly connected with the inner wall of the first insulating layer, and the first protective layer is fixedly connected to the inner wall of the thermal insulation layer in a sleeving manner, so that the cable has the effects of wear resistance, water resistance and insulation;

2. the inner wall of the second insulating layer is wrapped on the outer wall of the conductor, the second protective layer is fixed on the outer wall of the second insulating layer, the conductor is placed inside the first protective layer, the filling layer is filled inside the first protective layer, the three conductors are wrapped by the filling layer, and the effect of mutual insulation between the three conductors is achieved.

Drawings

Fig. 1 is a schematic cross-sectional view of the overall structure of example 1 provided by the present invention;

fig. 2 is a schematic view of the overall structure of embodiment 1 provided by the present invention;

fig. 3 is a schematic cross-sectional view of a protective member according to embodiment 1 of the present invention;

fig. 4 is a schematic cross-sectional view of the overall structure of example 2 provided by the present invention;

fig. 5 is a schematic cross-sectional view of a protective member according to embodiment 2 of the present invention.

In the figure: 1. a wear layer; 2. a waterproof layer; 3. a first insulating layer; 4. a first shielding layer; 5. a thermal insulation layer; 6. a first protective layer; 7. a filling layer; 8. a second protective layer; 9. a second insulating layer; 10. a conductor; 11. a second shielding layer; 12. a third protective layer; 13. a third insulating layer; 100. a shielding member; 200. a protective member; 300. a shield member.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example 1:

referring to fig. 1 to 3, the present invention provides a composite shielded cable, which includes a protection member 300, a protection member 200, a shielding member 100, and a conductor 10;

conductor 10 is equipped with threely, the shape of conductor 10 all is cylindricly, the outside of every conductor 10 all is equipped with protection component 200, protection component 300 is located protection component 200's the outside, the outside of conductor 10 is equipped with shielding component 100, protection component 200 is two 9 and two 8 of insulating layer, the shape of two 9 of insulating layer is the pipe form, the inner wall parcel of two 9 of insulating layer is on the outer end lateral wall of conductor 10, two 9 of insulating layer play the effect of protecting conductor 10, let mutual insulation between the conductor 10, two 8 of protective layer are located the outside of two 9 of insulating layer, the shape of two 8 of protective layer is the pipe form, two 8 covers of protective layer on two 9's the outer wall, the inner wall of two 8 of protective layer and the outer wall fixed connection of two 9 of insulating layer, two 8 of protective layer play the effect of protecting two 9 of insulating layer.

The protection component 300 comprises a wear-resistant layer 1, the wear-resistant layer 1 plays a wear-resistant role, the effect that the epidermis is worn out when the cable is used for a long time in external tea is prevented, the shape of the wear-resistant layer 1 is in a round tube shape, a waterproof layer 2 is fixedly connected to the inner wall of the wear-resistant layer 1 in a sleeved mode and plays a role in preventing the cable from being broken, the shape of the waterproof layer 2 is in a round tube shape, a first insulating layer 3 is fixedly connected to the inner wall of the waterproof layer 2 in a sleeved mode and plays a role in insulating the cable, the first insulating layer 3 is in a round tube shape, a heat insulation layer 5 is arranged on the inner side of the first insulating layer 3, the heat insulation layer 5 is in a round tube shape, a first protective layer 6 is fixedly connected to the inner wall of the heat insulation layer 5 in a sleeved mode and is in a round tube shape, the first protective layer 6 is made of a steel strip, the steel strip plays a role in enhancing the firmness of the cable, and the cable is prevented from being pulled, Tear and lead to the cable to damage, insulating layer 5 adopts high temperature resistant rubber material to make, and high temperature resistant rubber generally indicates still has normal performance's rubber under high temperature environment, plays the effect of carrying out the protection to the inside object of insulating layer 5, and the inside packing of protective layer 6 has filling layer 7, and filling layer 7 plays the effect to cable shock attenuation, and filling layer 7 lives three protective layer two 8 equal parcels.

Shielding part 100 includes shielding layer 4, shielding layer 4's shape is the pipe form, shielding layer 4 is located between insulating layer 3 and the insulating layer 5, shielding layer 4's inner wall and the outer wall fixed connection of insulating layer 5, shielding layer 4's outer wall and insulating layer 3's inner wall fixed connection, shielding layer 4 plays the effect of shielding external electromagnetic interference, shielding layer 4 sets up to the metallic braid, shielding layer 4's material adopts one of red copper or tin-plated copper to weave and forms.

The utility model discloses a use as follows: the technical personnel in the field fix protective layer two 8 on the outer wall of insulating layer two 9 through the inner wall parcel with insulating layer two 9 on the outer wall of conductor 10, fixed connection waterproof layer 2 on the inner wall of wearing layer 1, mode fixed connection insulating layer one 3 through cup jointing at the inner wall of waterproof layer 2, the inner wall with shielding layer one 4 and the outer wall fixed connection of insulating layer 5, the outer wall of shielding layer one 4 and the inner wall fixed connection of insulating layer one 3, mode fixed connection protective layer one 6 through cup jointing at the inner wall of insulating layer 5, through placing conductor 10 inside protective layer one 6 and pack at the inside of protective layer one 6 has filling layer 7, filling layer 7 is all wrapped up three conductor 10.

Example 2:

referring to fig. 4-5, the present invention provides a composite shielded cable, which includes a protection member 200;

the protection component 200 is an insulating layer three 13, a protective layer three 12 and a shielding layer two 11, the insulating layer three 13 is in a round tube shape, the inner wall of the insulating layer three 13 is fixedly connected with the shielding layer two 11 through a sleeving mode, the shielding layer two 11 is in a round tube shape, the inner wall of the shielding layer two 11 wraps the outer end side wall of the conductor 10, the shielding layer two 11 plays a role in shielding external electromagnetic interference, the shielding layer two 4 is set to be a metal braid layer, the shielding layer two 11 is made of red copper or tin-plated copper, the protective layer three 12 is located on the outer side of the insulating layer three 13, the protective layer three 12 is in a round tube shape, the inner wall of the protective layer three 12 is fixedly connected with the outer wall of the insulating layer three 13, the protective layer three 12 plays a role in protecting the insulating layer three 13, and the insulating layer three 13 plays a role in insulating protection for the conductor 10.

The utility model discloses a use as follows: in comparison with embodiment 1, the protective member 200 in this embodiment is an insulating layer three 13, protective layer three 12 and shielding layer two 11, the shape of insulating layer three 13 is the pipe form, the inner wall of insulating layer three 13 is through the mode fixedly connected with shielding layer two 11 that cup joints, the shape of shielding layer two 11 is the pipe form, the inner wall parcel of shielding layer two 11 is on the outer end lateral wall of conductor 10, shielding layer two 11 plays the effect of shielding external electromagnetic interference, shielding layer two 11 sets up to the metallic braid, the material of shielding layer two 11 adopts one of red copper or tin-plated copper to weave and forms, protective layer three 12 is located the outside of insulating layer three 13, the shape of protective layer three 12 is the pipe form, the inner wall of protective layer three 12 and the outer wall fixed connection of insulating layer three 13, protective layer three 12 plays the effect of protecting insulating layer three 13, insulating layer three 13 plays the effect of carrying out insulation protection to conductor 10.

The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solutions described above. Therefore, any simple modifications or equivalent replacements made according to the technical solution of the present invention belong to the scope of the claimed invention as far as possible.

Claims

1. The utility model provides a composite shielded cable, includes protecting component (300), protecting component (200), shielding part (100) and conductor (10), its characterized in that, conductor (10) are equipped with threely, the shape of conductor (10) all is cylindricly, every the outside of conductor (10) all is equipped with protecting component (200), protecting component (300) are located the outside of protecting component (200), the outside of conductor (10) is equipped with shielding part (100).

2. A composite shielded electrical cable according to claim 1, wherein: protection component (200) are two (9) on insulating layer and two (8) on the protective layer, the shape of two (9) on insulating layer is the pipe form, the inner wall parcel of two (9) on the outer end lateral wall of conductor (10) on the insulating layer, two (8) on the protective layer are located the outside of two (9) on the insulating layer, the shape of two (8) on the protective layer is the pipe form, two (8) on the outer wall of two (9) on the protective layer, the inner wall of two (8) on the protective layer and the outer wall fixed connection of two (9) on the insulating layer.

3. A composite shielded electrical cable according to claim 1, wherein: the protective component (300) comprises a wear-resistant layer (1), the shape of the wear-resistant layer (1) is in a circular tube shape, a waterproof layer (2) is fixedly connected to the inner wall of the wear-resistant layer (1) in a sleeved mode, the shape of the waterproof layer (2) is in a circular tube shape, a first insulating layer (3) is fixedly connected to the inner wall of the waterproof layer (2) in a sleeved mode, the shape of the first insulating layer (3) is in a circular tube shape, and a heat insulation layer (5) is arranged on the inner side of the first insulating layer (3).

4. A composite shielded electrical cable according to claim 3, wherein: the shape of insulating layer (5) is the pipe form, the inner wall of insulating layer (5) is through the mode fixedly connected with protective layer (6) that cup joints, the shape of protective layer (6) is the pipe form.

5. The composite shielded electrical cable of claim 4, wherein: the interior of the first protective layer (6) is filled with a filling layer (7), and the three second protective layers (8) are wrapped by the filling layer (7).

6. A composite shielded electrical cable according to claim 1, wherein: shielding part (100) is including shielding layer (4), the shape of shielding layer (4) is the pipe form, shielding layer (4) are located between insulating layer (3) and insulating layer (5), the inner wall of shielding layer (4) and the outer wall fixed connection of insulating layer (5), the outer wall of shielding layer (4) and the inner wall fixed connection of insulating layer (3).

7. The composite shielded electrical cable of claim 6, wherein: the first shielding layer (4) is set to be a metal braid layer, and the first shielding layer (4) is made of one of red copper or tinned copper by weaving.

8. A composite shielded electrical cable according to claim 1, wherein: protection part (200) are insulating layer three (13), protective layer three (12) and shielding layer two (11), the shape of insulating layer three (13) is the pipe form, the inner wall of insulating layer three (13) is through mode fixedly connected with shielding layer two (11) that cup joints, the shape of shielding layer two (11) is the pipe form, the inner wall parcel of shielding layer two (11) is on the outer end lateral wall of conductor (10), and protective layer three (12) are located the outside of insulating layer three (13), the shape of protective layer three (12) is the pipe form, the inner wall of protective layer three (12) and the outer wall fixed connection of insulating layer three (13).