CN216014880U

CN216014880U - Shielded cable

Info

Publication number: CN216014880U
Application number: CN202122298641.8U
Authority: CN
Inventors: 王阁; 周侠; 陈浩; 冷荣华
Original assignee: Ruixin Group Co ltd
Current assignee: Ruixin Group Co ltd
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-03-11
Anticipated expiration: 2031-09-18

Abstract

The application discloses shielded cable, including a plurality of sinle silk, every the outside of sinle silk all wraps up insulating layer and shielding layer in proper order, every all be provided with first buffer layer between insulating layer and the shielding layer, be provided with the second buffer layer between first buffer layer and the shielding layer, evenly be provided with a plurality of buffering post, all between first buffer layer and the second buffer layer the outside of sinle silk is provided with the wearing layer jointly. When the sinle silk receives external heavy object and strikes, partly impact force can be alleviated to first buffer layer and second buffer layer, and the cushion post between first buffer layer and the second buffer layer simultaneously receives to take place deformation after assaulting to alleviate partly impact force, and then reduce the impact force that the sinle silk received, the condition that the reduction sinle silk damaged takes place, ensures that the cable can normal use.

Description

Shielded cable

Technical Field

The present application relates to the field of cables, and more particularly, to a shielded cable.

Background

Shielded cables are transmission lines in which signal wires are wrapped with a metallic mesh braid.

At present, chinese patent publication No. CN105280300A discloses a shielded cable, which includes a plurality of insulated wire cores, a braid layer, a sheath layer, a copper-plastic composite shielding layer, and a plurality of spaced shielding plates.

In view of the above prior art, the inventors consider that the following drawbacks exist: the shielded cable is easy to be accidentally collided or rolled by heavy objects such as stones in the laying process, so that the inner insulated wire core is damaged, and the shielded cable is to be improved.

SUMMERY OF THE UTILITY MODEL

In order to reduce the condition emergence that the sinle silk damaged, this application provides a shielded cable.

The utility model provides a shielded cable, includes a plurality of sinle silk, every the outside of sinle silk all wraps up insulating layer and shielding layer in proper order, every all be provided with first buffer layer between insulating layer and the shielding layer, be provided with the second buffer layer between first buffer layer and the shielding layer, evenly be provided with a plurality of buffering post, all between first buffer layer and the second buffer layer the outside of sinle silk is provided with the wearing layer jointly.

Through adopting above-mentioned technical scheme, when the sinle silk receives external heavy object and strikes, partly impact force can be alleviated to first buffer layer and second buffer layer, and the buffering post between first buffer layer and the second buffer layer takes place deformation after receiving the impact simultaneously to alleviate partly impact force, and then reduce the impact force that the sinle silk received, the condition that reduces the sinle silk damage takes place, ensures that the cable can normal use.

Optionally, the outer side walls at the two ends of the buffer column are respectively connected with a reinforcing ring along the circumferential direction, and the reinforcing rings at the two ends of the buffer column are respectively connected with the first buffer layer and the second buffer layer.

Through adopting above-mentioned technical scheme, the firm in connection nature between reinforcement ring can increase buffering post and first buffer layer and the second buffer layer prevents the unexpected fracture in both ends of buffering post.

Optionally, a plurality of wear-resistant rings are arranged on the outer side wall of the wear-resistant layer at intervals along the length direction of the wear-resistant layer.

Through adopting above-mentioned technical scheme, wear-resisting ring can reduce the area of contact of wearing layer and ground to slow down the wearing and tearing of wearing layer.

Optionally, a plurality of connecting holes are formed in the side wall of the wear-resistant ring adjacent to the wear-resistant layer at intervals along the circumferential direction.

Through adopting above-mentioned technical scheme, when the wear-resisting ring received the heavy object striking, great deformation can take place for the connecting hole department on the wear-resisting ring to reinforcing wear-resisting ring's deformability, and then buffering partly impact force, the impact force that reduces the sinle silk and receive.

Optionally, both ends of the connecting hole are connected with filter screens for limiting sundries from entering the connecting hole.

Through adopting above-mentioned technical scheme, the filter screen can restrict the less debris of external volume and get into in the connecting hole to prevent that debris from hindering the deformation of connecting hole.

Optionally, a plurality of heat dissipation holes are formed in the first buffer layer and the second buffer layer.

Through adopting above-mentioned technical scheme, the louvre can increase the radiating effect of first buffer layer and second buffer layer to make the heat that the sinle silk produced distribute out through the louvre fast.

Optionally, the inner side wall of the wear-resistant layer is provided with a flame-retardant layer.

Through adopting above-mentioned technical scheme, fire-retardant layer can prevent the cable burning to protect the sinle silk.

Optionally, a tensile layer is arranged between the wear-resistant layer and the flame-retardant layer, and the tensile layer is a carbon fiber layer.

By adopting the technical scheme, the carbon fiber has good tensile property, so that the tensile layer has good tensile property, thereby increasing the tensile property of the cable and preventing the cable from being torn accidentally; in addition, the carbon fiber has good heat conduction effect, so that the tensile layer can conduct heat generated by the wire core to the wear-resistant layer quickly, and the heat dissipation effect is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the sinle silk receives external heavy object and strikes, partly impact force can be alleviated to first buffer layer and second buffer layer, and the cushion post between first buffer layer and the second buffer layer simultaneously receives to take place deformation after assaulting to alleviate partly impact force, and then reduce the impact force that the sinle silk received, the condition that the reduction sinle silk damaged takes place, ensures that the cable can normal use.

2. When the wear-resistant ring is impacted by a heavy object, the connecting hole on the wear-resistant ring can be greatly deformed, so that the deformation capability of the wear-resistant ring is enhanced, part of impact force is buffered, and the impact force on the wire core is reduced.

3. The filter screen can restrict the less debris of external volume to get into in the connecting hole to prevent debris from hindering the deformation of connecting hole.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Fig. 2 is a schematic sectional view taken along the plane a-a in fig. 1.

Description of the reference numerals:

1. a wire core; 2. an insulating layer; 3. a shielding layer; 4. a first buffer layer; 41. heat dissipation holes; 5. a second buffer layer; 6. a buffer column; 61. a reinforcing ring; 7. a wear layer; 71. a wear ring; 72. connecting holes; 73. a filter screen; 8. a flame retardant layer; 9. a tensile layer.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses a shielded cable. Referring to fig. 1 and 2, the cable comprises three cable cores 1, wherein an insulating layer 2, a first buffer layer 4, a second buffer layer 5 and a shielding layer 3 are sequentially arranged on the outer side of each cable core 1, and a flame-retardant layer 8, a netted tensile layer 9 and a wear-resistant layer 7 are sequentially and jointly wrapped on the outer sides of all the cable cores 1 from inside to outside. Insulating layer 2 is the ethylene propylene rubber layer, therefore insulating layer 2 has good insulating properties, and shielding layer 3 is the metal braid layer that the compound area of copper-plastic was woven and is made, and first buffer layer 4 and second buffer layer 5 are the butadiene styrene rubber layer, therefore first buffer layer 4 and second buffer layer 5 all have good elasticity. The flame-retardant layer 8 is an ethylene-tetrafluoroethylene copolymer resin layer, the tensile layer 9 is a carbon fiber layer, and the wear-resistant layer 7 is a butadiene-acrylonitrile rubber layer.

Referring to fig. 2, a plurality of wear-resistant rings 71 are integrally formed on the outer side wall of the wear-resistant layer 7 at intervals along the length direction, a plurality of connecting holes 72 are formed on the side wall of the wear-resistant layer 7 adjacent to the wear-resistant rings 71 at intervals around the axial lead direction of the wear-resistant layer 7, and the openings at the two ends of the connecting holes 72 are fixedly connected with filter screens 73. On one hand, the wear-resistant ring 71 can reduce the contact area of the wear-resistant layer 7 and the ground, so that the wear of the wear-resistant layer 7 is reduced; on the other hand, the wear-resistant ring 71 can increase the impact resistance of the wear-resistant layer 7, the connecting holes 72 can improve the deformation capability of the wear-resistant ring 71, and the deformation of the wear-resistant ring 71 can offset part of the impact force of the heavy object on the cable.

Referring to fig. 2, a plurality of buffer posts 6 with circular cross-sections are uniformly arranged between the first buffer layer 4 and the second buffer layer 5. The circumference lateral wall at 6 both ends of cushion column all has reinforcing ring 61 along circumference integrated into one piece, two reinforcing ring 61 respectively with first buffer layer 4 and second buffer layer 5 fixed connection. When sinle silk 1 receives external heavy object to strike, partly impact force can be alleviated to second buffer layer 5, and buffer column 6 takes place to deform and alleviates partly impact force after receiving the impact after that, then first buffer layer 4 deformation is alleviated partly impact force to reduce the impact force that sinle silk 1 received.

Referring to fig. 2, a plurality of heat dissipation holes 41 are formed in the first buffer layer 4 and the second buffer layer 5, and the heat dissipation holes 41 can increase the heat dissipation effect of the first buffer layer 4 and the second buffer layer 5, so that heat generated by the core 1 can be quickly dissipated through the heat dissipation holes 41.

The implementation principle of the shielding cable in the embodiment of the application is as follows: when sinle silk 1 receives external heavy object impact, partial impact force can be alleviated to wearing layer 7 and wear-resisting ring 71, and partial impact force can be alleviated to first buffer layer 4, bumping post 6 and second buffer layer 5 afterwards to reduce the impact force that sinle silk 1 received, ensure that the cable can normal use.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a shielded cable, includes a plurality of sinle silk (1), every the outside of sinle silk (1) all wraps up in proper order has insulating layer (2) and shielding layer (3), its characterized in that: every all be provided with first buffer layer (4) between insulating layer (2) and shielding layer (3), be provided with second buffer layer (5) between first buffer layer (4) and shielding layer (3), evenly be provided with a plurality of buffering post (6), all between first buffer layer (4) and second buffer layer (5) the outside of sinle silk (1) is provided with wearing layer (7) jointly.

2. A shielded electrical cable according to claim 1, wherein: all along circumferential direction on the lateral wall at the both ends of cushion column (6) have reinforcement ring (61), reinforcement ring (61) at cushion column (6) both ends are connected with first buffer layer (4) and second buffer layer (5) respectively.

3. A shielded electrical cable according to claim 1, wherein: the outer side wall of the wear-resistant layer (7) is provided with a plurality of wear-resistant rings (71) at intervals along the length direction.

4. A shielded electrical cable according to claim 3, wherein: and a plurality of connecting holes (72) are formed in the side wall of the wear-resistant ring (71) adjacent to the wear-resistant layer (7) at intervals along the circumferential direction.

5. A shielded electrical cable according to claim 4, wherein: and both ends of the connecting hole (72) are connected with filter screens (73) used for limiting sundries from entering the connecting hole (72).

6. A shielded electrical cable according to claim 1, wherein: a plurality of heat dissipation holes (41) are formed in the first buffer layer (4) and the second buffer layer (5).

7. A shielded electrical cable according to claim 1, wherein: and a flame-retardant layer (8) is arranged on the inner side wall of the wear-resistant layer (7).

8. A shielded electrical cable according to claim 7, wherein: a tensile layer (9) is arranged between the wear-resistant layer (7) and the flame-retardant layer (8), and the tensile layer (9) is a carbon fiber layer.