CN214099204U

CN214099204U - Composite cable with multilayer protective structure

Info

Publication number: CN214099204U
Application number: CN202021385576.1U
Authority: CN
Inventors: 卢飞
Original assignee: Anhui Off Special Cable Technology Co ltd
Current assignee: Anhui Off Special Cable Technology Co ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2021-08-31
Anticipated expiration: 2030-07-15

Abstract

The utility model relates to a wire and cable technical field, concretely relates to composite cable with multilayer protective structure. The cable core comprises a main cable core and at least one auxiliary cable core, wherein the auxiliary cable core is annularly distributed by taking the main cable core as the center, and a shielding layer and a first insulating layer are sleeved outside the main cable core and the auxiliary cable core; the connecting frame is fixedly arranged between the two adjacent first insulating layers, the elastic filling layer is arranged between the connecting frame and the heat dissipation layer, one end of the connecting frame penetrates through the elastic filling layer to be fixedly connected with the heat dissipation layer, the connecting frame is of a hollow structure, and the auxiliary cable core is communicated with the heat dissipation layer through the connecting frame.

Description

Composite cable with multilayer protective structure

Technical Field

The utility model relates to a wire and cable technical field, concretely relates to composite cable with multilayer protective structure.

Background

The cable can be a power cable, a compensation cable, a shielding cable, a wear-resistant cable, a computer cable, a signal cable, a coaxial cable, a fire-resistant cable, a marine cable, a mining cable, an aluminum alloy cable and the like. They are composed of single-strand or multi-strand wires and insulating layers, and are used for connecting circuits, electric appliances and the like, and are respectively applied to different occasions.

At present, a general structure of a general outdoor transmission cable wraps a conductor, insulation, a wrapping tape and a sheath, the conductor is wrapped in an insulation layer, an insulation wire core is cabled around the wrapping tape, and a cabled wire core is wrapped in the sheath layer. This is also the development direction of this patent. Cables are generally rope-like cables made by stranding several or groups of conductors (at least two in each group), each group being insulated from each other and often twisted around a center, the entire outer surface being coated with a highly insulating coating.

In daily life, outdoor cables are easily affected by severe weather environments such as strong wind, rainstorm and the like, so that a sheath material structure wrapped on the cables is easily worn and damaged, and an insulating material is gradually exposed outside. Once the phenomenon occurs, the cable needs to be replaced, the operation time is influenced, the production cost is improved, the tensile property and the wear resistance are not outstanding, the improvement of the wear resistance of the cable means the prolonging of the service life of the outdoor laid cable, but the common outdoor cable is not ideal in the aspect of wind erosion prevention at present. And when the cable is used, especially under a high-temperature environment or in a thunder and lightning weather, certain potential safety hazards often exist, and the safety of the existing cable and measures are not perfect.

Reference application number is CN 201020258758.2's a novel dampproofing power cable that blocks water, it includes three-core cable and parcel outer jacket outside three-core cable, and the cable includes conductor and insulating layer, characterized by: the insulating layer of the cable is wrapped by a water-blocking tape wrapping, and a water-blocking rope is filled between the three-core cable and the outer protective layer. The waterproof belt wrapping is wrapped between the waterproof rope and the outer protective layer, and the cable structure is used for outdoor use, and the use effect is easily influenced by weather due to lower wear resistance. And the cable does not have safety measures for coping when used in a high-temperature environment, and the applicability is low.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a composite cable with multilayer protective structure that practicality is strong excellent in use effect.

In order to achieve the above object, the utility model provides a following technical scheme:

a composite cable with a multilayer protection structure comprises a cable core, wherein a heat dissipation layer, a waterproof layer, a flame retardant layer, an inner protection layer, an armor layer, a second insulation layer, a fireproof layer and an outer protection layer are sequentially arranged on the cable core from inside to outside; the connecting frame is fixedly arranged between every two adjacent first insulating layers, the elastic filling layer is arranged between the connecting frame and the heat dissipation layer, one end of the connecting frame penetrates through the elastic filling layer and is fixedly connected with the heat dissipation layer, the connecting frame is of a hollow structure, the auxiliary cable core is communicated with the heat dissipation layer through the connecting frame, a heat dissipation cavity is formed between the main cable core and the auxiliary cable core through the connecting frame, a buffer block is arranged in the heat dissipation cavity, and the buffer block is fixedly arranged between the main cable core and the auxiliary cable core.

The further optimization of this technical scheme still includes high temperature resistant layer, and high temperature resistant layer sets up between second insulating layer and flame retardant coating.

According to the further optimization of the technical scheme, the PEEK resin material is selected for the high-temperature resistant layer. The PEEK resin material has the characteristics of high temperature resistance, high strength, wear resistance, high toughness and the like.

The further optimization of this technical scheme, the buffer block includes spring and bumping post, and the bumping post is fixed to be set up between main cable core and supplementary cable core, and the spring housing is established on the bumping post, and the spring both ends all with first insulation layer fixed connection. The spring and the buffer column are matched to effectively play a role in buffering, so that the external impact force can be effectively reduced, and a buffer protection effect is played.

According to the further optimization of the technical scheme, one end, far away from the heat dissipation layer, of the connecting frame is located in the heat dissipation cavity and is communicated with the heat dissipation cavity. The connecting frame is communicated with the heat dissipation cavity, so that the auxiliary heat dissipation effect can be effectively achieved.

According to the further optimization of the technical scheme, the number of the auxiliary cable cores is 5, and the auxiliary cable cores are distributed in a ring shape at equal intervals by taking the main cable core as the center.

Further optimization of the technical scheme is realized, and the inside of the armor layer is of a net structure woven by steel wires.

The technical scheme is further optimized, and the filling material in the flame-retardant layer is brominated polystyrene. Brominated polystyrene has good mechanical physical and chemical properties such as high flame retardance, thermal stability, light stability and the like, and can be used as a good flame retardant material.

Compared with the prior art the utility model discloses following beneficial effect has: the utility model discloses a set up the link that has hollow structure between two adjacent auxiliary cable cores, can separate the auxiliary cable core on the one hand, prevent to produce the friction between two adjacent auxiliary cable cores, avoid causing wearing and tearing. On the other hand, the connecting frame can communicate the auxiliary cable core with the heat dissipation layer to help the cable core dissipate heat, and the auxiliary cable core can form a heat dissipation cavity between the connecting frame and the main cable core, and the connecting frame is communicated with the heat dissipation cavity to further help the cable core dissipate heat.

The buffer block is fixedly arranged between the main cable core and the auxiliary cable core, so that the main cable core and the auxiliary cable core are prevented from colliding due to severe vibration generated by external force, external impact force can be reduced, and abrasion is avoided. The utility model discloses extension cable life that can be by a wide margin to improved the practical security of cable, its excellent in use effect, practicality is strong.

Drawings

Fig. 1 is a cross-sectional view of a composite cable having a multi-layer protective structure.

In the figure: an auxiliary cable core 1; a main cable core 2; a connecting frame 3; a buffer block 4; a flame retardant layer 5; a heat dissipation layer 6; a waterproof layer 7; an inner protective layer 8; an armor layer 9; a second insulating layer 10; a high temperature resistant layer 11; a fire-resistant layer 12; an outer protective layer 13; a wear strip 14; a heat dissipation chamber 15.

Detailed Description

To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

Referring to fig. 1, for a composite cable's cross-sectional view with multilayer protective structure, the utility model discloses a composite cable with multilayer protective structure, including the cable core, by interior heat dissipation layer 6, waterproof layer 7, fire-retardant layer 5, inner protective layer 8, armor 9, second insulating layer 10, flame retardant coating 12, high temperature resistant layer 11 and outer protective layer 13 of having set gradually outside to on the cable core. The cable core includes main cable core 2 and auxiliary cable core 1, and auxiliary cable core 1 has 5, and auxiliary cable core 1 uses main cable core 2 to be the annular distribution as the center, and auxiliary cable core 1 has 5 cable conductor to form of transposition each other. The main cable core 2 and the auxiliary cable core 1 are sequentially wrapped with a shielding layer and a first insulating layer. The connecting frame 3 is fixedly arranged between two adjacent first insulating layers, the connecting frame 3 is of a cross-shaped structure, the connecting frame 3 is of a hollow structure, and the two adjacent auxiliary cable cores 1 are communicated through the connecting frame 3. An elastic filling layer is arranged between the connecting frame 3 and the heat dissipation layer 6, one end of the connecting frame 3 penetrates through the elastic filling layer to be fixedly connected with the heat dissipation layer 6, namely the auxiliary cable core 1 is communicated with the heat dissipation layer 6 through the connecting frame 3, and the generated heat of the auxiliary cable core 1 can be led to the heat dissipation layer 6 through the connecting frame 3 to help the cable to dissipate heat. A heat dissipation cavity 15 is formed between the main cable core 2 and the auxiliary cable core 1 through the connecting frame 3, one end, far away from the heat dissipation layer 6, of the connecting frame 3 is communicated with the heat dissipation cavity 15, and the heat dissipation cavity 15 can help the auxiliary cable core 1 to dissipate heat through the connecting frame 3. And be provided with buffer block 4 in the heat dissipation chamber 15, buffer block 4 includes spring and buffering post, and the buffering post is fixed to be set up between main cable core 2 and auxiliary cable core 1, and the buffering post both ends all with first insulating layer fixed connection, and the spring housing is established on the buffering post, and the spring both ends all with first insulating layer fixed connection. The buffer column is made of elastic rubber materials, and the buffer column can prevent the main cable core 2 and the auxiliary cable core 1 from being abraded due to the influence of external force. When the cable received external force and assaulted, the spring can play the effect that slows down the impact force with the cooperation of cushion post, prevents that the cable from causing harm and wearing and tearing owing to the impact and the vibrations of receiving external force. Wear-resistant strips 14 are integrally formed on the surface of the outer protective sleeve, and the wear-resistant strips 14 are annularly and equidistantly distributed by taking the center of the outer protective sleeve as a circle center. Wear-resisting strip 14 that the annular set up on outer protective layer 13 has effectually avoided outer protective layer 13 direct and ground contact, has avoided wire and cable to receive wearing and tearing when being removed.

The inside reticular structure that is woven for the steel wire of armor 9, this kind of structure hardness is big, and intensity is high, the guard action that can effectively play. The first insulating layer and the second insulating layer 10 both adopt polytetrafluoroethylene wrapping layers, and the material has excellent electrical insulating property, high insulating resistance, high voltage resistance, flame resistance and aging resistance, and is long in service life. Can improve fire resistance, high temperature resistance and electrical insulation. The filling material in the flame-retardant layer 5 is brominated polystyrene, and the brominated polystyrene has good mechanical physical and chemical properties such as high flame retardance, thermal stability, light stability and the like, and is a good flame-retardant material. The high temperature resistant layer 11 is made of PEEK resin material, and the PEEK resin material has the characteristics of high temperature resistance, high strength, wear resistance, high toughness and the like.

The utility model discloses when using, the setting is at the wear-resisting strip 14 that the annular set up on the overcoat, can effectually avoid the direct contact with ground of overcoat, has avoided wire and cable to receive wearing and tearing when being removed. The connecting frame 3 with the hollow structure is arranged between the two adjacent auxiliary cable cores 1, so that the auxiliary cable cores 1 can be separated, friction between the two adjacent auxiliary cable cores 1 is prevented, and abrasion is avoided. On the other hand, the connecting frame 3 can communicate the auxiliary cable core 1 with the heat dissipation layer 6 to help the cable core dissipate heat, a heat dissipation cavity 15 can be formed between the connecting frame 3 and the main cable core 2 through the auxiliary cable core 1, and the connecting frame 3 is communicated with the heat dissipation cavity 15 to further help the cable core dissipate heat. The buffer block 4 fixedly arranged between the main cable core 2 and the auxiliary cable core 1 can effectively prevent the main cable core 2 from colliding with the auxiliary cable core 1 when the external force produces violent vibration, so that the external impact force can be reduced, and the abrasion degree and the probability can be greatly reduced. The setting forms this cable first fire prevention and high temperature resistant protective screen at armor 9 outside high temperature resistant layer 11 and flame retardant coating 12, cooperatees with the fire-retardant layer 5 that sets up in armor 9 inside, can improve high temperature resistance and fire behavior greatly, has improved the safety in utilization of cable. The utility model provides an above-mentioned technical scheme can effectual improvement this cable's life, has also improved the safety in utilization of cable simultaneously greatly, and its excellent in use effect, the practicality is strong.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrases "comprising … …" or "comprising … …" does not exclude the presence of additional elements in a process, method, article, or terminal that comprises the element. Further, herein, "greater than," "less than," "more than," and the like are understood to exclude the present numbers; the terms "above", "below", "within" and the like are to be understood as including the number.

Although the embodiments have been described, once the basic inventive concept is known, other changes and modifications can be made to the embodiments by those skilled in the art, so that the above embodiments are only examples of the present invention, and not intended to limit the scope of the present invention, and all the modifications of the equivalent structure or equivalent flow path using the contents of the specification and the drawings of the present invention, or directly or indirectly using other related technical fields are also included in the scope of the present invention.

Claims

1. A composite cable with a multilayer protection structure is characterized by comprising a cable core, wherein the cable core is sequentially provided with a heat dissipation layer, a waterproof layer, a flame retardant layer, an inner protection layer, an armor layer, a second insulation layer, a fireproof layer and an outer protection layer from inside to outside; the cable comprises a main cable core, a heat dissipation layer, a first insulation layer, a second insulation layer, a connecting frame, an elastic filling layer, a connecting frame, a buffer block and a heat dissipation layer, wherein the connecting frame is fixedly arranged between the first insulation layers, the elastic filling layer is arranged between the connecting frame and the heat dissipation layer, one end of the connecting frame penetrates through the elastic filling layer and is fixedly connected with the heat dissipation layer, the connecting frame is of a hollow structure, the auxiliary cable core is communicated with the heat dissipation layer through the connecting frame, a heat dissipation cavity is formed between the main cable core and the auxiliary cable core through the connecting frame, the heat dissipation cavity is internally provided with the buffer block, and the buffer block is fixedly arranged between the main cable core and the auxiliary cable core.

2. The composite cable having a multilayer protective structure according to claim 1, further comprising a high temperature resistant layer disposed between the second insulating layer and the flame retardant layer.

3. The composite cable with multilayer protective structure as claimed in claim 2, wherein said high temperature resistant layer is made of PEEK resin material.

4. The composite cable with the multilayer protection structure as claimed in claim 1, wherein the buffer block comprises a spring and a buffer column, the buffer column is fixedly arranged between the main cable core and the auxiliary cable core, the spring is sleeved on the buffer column, and two ends of the spring are fixedly connected with the first insulating layer.

5. The composite cable with multi-layer protection structure as claimed in claim 1, wherein the end of the connecting frame away from the heat dissipation layer is located in the heat dissipation chamber and is connected to the heat dissipation chamber.

6. The composite cable with the multilayer protection structure according to claim 1, wherein the number of the auxiliary cable cores is 5, and the auxiliary cable cores are annularly and equidistantly distributed by taking the main cable core as a center.

7. The composite cable with multilayer protective structure according to claim 1, wherein the surface of the outer protective layer is integrally formed with wear resistant strips, and the wear resistant strips are annularly and equidistantly distributed around the center of the outer protective sleeve.

8. A composite cable with a multi-layer protective structure according to claim 1, wherein the armor layer is internally a mesh structure formed by weaving steel wires.

9. The composite cable with multilayer protective structure according to claim 1, wherein the filling material inside the flame retardant layer is brominated polystyrene.