阅读说明：本技术 一种散热电缆 (Heat dissipation cable ) 是由 李万松 于 2021-06-17 设计创作，主要内容包括：本发明公开了一种散热电缆,属于电缆领域,包括由内至外依次设置的缆芯、功能防护层及外保护层,功能防护层包括开设有散热孔的第一隔离防护层和第二隔离防护层,初始状态下,第一隔离防护层和第二隔离防护层上的散热孔错位分布；缆芯外套设导热套管,导热套管上沿其周侧等间距固定有支撑体,支撑体的长度方向呈与缆芯同圆心设置的弧形,支撑体内设有热膨胀块,导热套管上套设有转动套环,转动套环上固定有径向连接到第二隔离防护层上的转动条,热膨胀块的一端固定有用于推动转动条转动的推板。本发明具有优异的自散热功能,可实现电缆的快速散热,且电缆的强度和抗压性能均得以提升。(The invention discloses a heat dissipation cable, which belongs to the field of cables and comprises a cable core, a functional protection layer and an outer protection layer which are sequentially arranged from inside to outside, wherein the functional protection layer comprises a first isolation protection layer and a second isolation protection layer which are provided with heat dissipation holes, and the heat dissipation holes on the first isolation protection layer and the second isolation protection layer are distributed in a staggered manner in an initial state; the cable core overcoat is established heat-conducting sleeve pipe, and the last equidistant supporter that is fixed with of its week side of heat-conducting sleeve pipe, the length direction of supporter be with the arc that the cable core concentric circles set up, is equipped with the thermal expansion piece in the supporter, and the cover is equipped with the rotation lantern ring on the heat-conducting sleeve pipe, is fixed with the rotation strip of radial connection to on the second isolation protective layer on the rotation lantern ring, and the one end of thermal expansion piece is fixed with and is used for promoting to rotate strip pivoted push pedal. The cable has an excellent self-heat dissipation function, can realize quick heat dissipation of the cable, and improves the strength and the pressure resistance of the cable.)

1. A heat dissipation cable comprises a cable core, a functional protection layer and an outer protection layer (1) which are sequentially arranged from inside to outside, wherein at least two cable cores (6) are arranged in the cable core; the cable core is characterized in that a heat-conducting sleeve (5) is sleeved outside the cable core, the functional protective layer comprises a second isolation protective layer (3) sleeved outside the heat-conducting sleeve (5) and a first isolation protective layer (2) sleeved outside the second isolation protective layer (3), and the outer protective layer (1) is sleeved outside the first isolation protective layer (2);

a plurality of supporting assemblies are fixed on the heat-conducting sleeve (5) along the length direction of the heat-conducting sleeve, each group of supporting assemblies comprises at least two supporting bodies (8) which are fixed at equal intervals along the peripheral side of the heat-conducting sleeve (5), the length direction of each supporting body (8) is arc-shaped and concentric with the cable core, and one end of each supporting body (8) in the length direction is fixedly connected to the heat-conducting sleeve (5); the heat conducting sleeve (5) is rotatably sleeved with rotating lantern rings (4) which correspond to the supporting components one by one, the rotating lantern rings (4) are correspondingly positioned at one side of the corresponding supporting components one by one, rotating strips (7) which are in one-to-one correspondence with the supporting bodies (8) on the same group of supporting components are fixed on the rotating lantern rings (4) at equal intervals along the peripheral sides of the rotating lantern rings, the rotating strips (7) are positioned in the radial direction of the cable, each rotating strip (7) is positioned at one side of the free end of the corresponding supporting body (8), an arc-shaped groove (16) which is bent along the radian of the support body and penetrates through the free end of the support body (8) is arranged in the support body (8), a thermal expansion block (9) is arranged in the arc-shaped groove (16) in an inner filling manner, and a push plate (10) positioned at the outer side of the arc-shaped groove (16) is fixed at the outer side end of the thermal expansion block (9), one side of the push plate (10) is fixed on the corresponding rotating strip (7);

form the cavity that is used for holding supporter (8) and rotation strip (7) between second isolation inoxidizing coating (3) and heat conduction sleeve (5), and rotate strip (7) inside one end embedding second isolation inoxidizing coating (3) that rotates lantern ring (4) dorsad, the interior anchor ring of first isolation inoxidizing coating (2) is attached completely on the outer anchor ring of second isolation inoxidizing coating (3), at least one row of interior louvre (14) have been seted up along its week side equidistant on second isolation inoxidizing coating (3), first isolation inoxidizing coating (2) are gone up and are seted up along its week side equidistant outer louvre (13) with interior louvre (14) one-to-one, and under the initial condition, interior louvre (14) and outer louvre (13) dislocation distribution.

2. A heat-radiating cable according to claim 1, characterized in that the second protective insulating layer (3) and the first protective insulating layer (2) are both flame-retardant and heat-insulating layers.

3. The heat dissipation cable according to claim 1, wherein a nylon layer (12) is fixed on an inner side surface of the first isolation protection layer (2), the nylon layer (12) is provided with through holes aligned with the outer heat dissipation holes (13), and the inner side surface of the nylon layer (12) is completely attached to an outer annular surface of the second isolation protection layer (3).

4. A heat dissipating cable according to claim 1, wherein a filler (11) is filled between the inner side of the heat conducting sleeve (5) and the outer side of each cable core (6).

5. A heat dissipating cable according to claim 4, characterized in that the filler (11) comprises PP cords.

6. A heat-radiating cable according to claim 1, characterized in that the side of the push plate (10) facing away from the cable core is fixed with an outer arc piece (17) attached to the outer arc side of the corresponding support (8), and the side of the push plate (10) facing the cable core is fixed with an inner arc piece (18) attached to the inner arc side of the corresponding support (8).

7. A heat-dissipating cable according to claim 1, wherein a stopper (15) is fixed to the side of the support body (8) where the fixing end is located.

8. A heat-dissipating cable according to claim 1, characterized in that each of the rotating collars (4) is provided with a fixed collar (19) fixed to the heat-conducting sleeve (5) on the side facing away from the corresponding support member, and an elastic sleeve (20) is connected between the fixed collar (19) and the opposite side of the corresponding rotating collar (4).

Technical Field

The invention relates to the field of cables, in particular to a heat dissipation cable.

Background

The cable is a common conductor in daily life, and transmits electric power or information from one place to another place, at present, along with the development of society, the power consumption also increases, the requirement on the cable is higher and higher, when the cable passes through certain load current, the cable can generate heat certainly, along with the increase of load current, the surface temperature of the cable is higher, if the current carrying capacity of the electric wire cable exceeds the limit bearing capacity, a fire disaster can be caused due to untimely heat dissipation, life and property loss can be caused, the heat dissipation effect of the cable is improved by reducing the thickness of a cable core protective layer in a traditional heat dissipation mode, but the possibility of increasing the damage of the cable is a problem which needs to be solved at present urgently.

Disclosure of Invention

1. Technical problem to be solved

The invention aims to provide a heat dissipation cable which has an excellent self-heat dissipation function, can realize quick heat dissipation of the cable, and improves the strength and the pressure resistance of the cable.

2. Technical scheme

In order to solve the problems, the invention adopts the following technical scheme:

a heat dissipation cable comprises a cable core, a functional protection layer and an outer protection layer which are sequentially arranged from inside to outside, wherein at least two cable cores are arranged in the cable core; the cable core is sleeved with a heat conduction sleeve, the functional protection layer comprises a second isolation protection layer sleeved outside the heat conduction sleeve and a first isolation protection layer sleeved outside the second isolation protection layer, and the outer protection layer is sleeved outside the first isolation protection layer;

the cable core is characterized in that a plurality of support assemblies are fixed on the heat-conducting sleeve along the length direction of the heat-conducting sleeve, each group of support assemblies comprises at least two support bodies fixed at equal intervals along the peripheral side of the heat-conducting sleeve, each support body and the heat-conducting sleeve are made of heat-conducting materials, the length direction of each support body is in an arc shape concentric with the cable core, and one end of each support body in the length direction is fixedly connected to the heat-conducting sleeve; the heat conducting sleeve is rotatably sleeved with rotating sleeve rings which correspond to the supporting components one to one, the rotating sleeve rings are located on one side of the corresponding supporting components one to one, rotating strips which correspond to the supporting bodies on the same group of supporting components one to one are fixed on the rotating sleeve rings at equal intervals along the peripheral sides of the rotating sleeve rings, the rotating strips are located in the radial direction of the cable, each rotating strip is located on one side of the free end of the corresponding supporting body (namely the side where one end of the supporting body, facing away from the fixed end of the rotating sleeve body, is provided with an arc-shaped groove which is bent along the radian of the supporting body and penetrates through the free end of the supporting body, a heat expansion block is filled in the arc-shaped groove, a push plate located on the outer side of the arc-shaped groove is fixed on the outer side of the heat expansion block, and one side of the push plate is fixed on the corresponding rotating strip;

a cavity for accommodating the support body and the rotating strip is formed between the second isolation protective layer and the heat conducting sleeve, one end of the rotating strip, which faces away from the rotating sleeve ring, is embedded into the second isolation protective layer, the inner ring surface of the first isolation protective layer is completely attached to the outer ring surface of the second isolation protective layer, at least one row of inner radiating holes are formed in the second isolation protective layer at equal intervals along the circumferential side of the second isolation protective layer, outer radiating holes which correspond to the inner radiating holes in a one-to-one mode are formed in the first isolation protective layer at equal intervals along the circumferential side of the first isolation protective layer, and the inner radiating holes and the outer radiating holes are distributed in a staggered mode in an initial state; the second isolation protection layer can rotate relative to the first isolation protection layer, and the inner heat dissipation holes can be communicated with the outer heat dissipation holes after the second isolation protection layer rotates.

Further, the support body and the heat-conducting sleeve are both made of heat-conducting materials, such as: copper wire, steel wire, aluminum wire, etc.; the rotating lantern ring, the rotating strip and the push plate are made of metal or plastic; the thermal expansion block is composed of thermally expandable microspheres bonded together by a binder resin.

Further, the second isolation protection layer and the first isolation protection layer are both flame-retardant heat insulation layers. Although the heat dissipation holes are formed in the second isolation protective layer and the first isolation protective layer, the inner ring surface of the first isolation protective layer is completely attached to the outer ring surface of the second isolation protective layer, and the inner heat dissipation holes and the outer heat dissipation holes are distributed in a staggered mode in the initial state, so that the flame-retardant and heat-insulation effects can be normally exerted while the heat dissipation of the cable core can be promoted by the second isolation protective layer and the first isolation protective layer.

Furthermore, a nylon layer is fixed on the inner side face of the first isolation protection layer, through holes which are in one-to-one correspondence with the outer heat dissipation holes and are aligned with the outer heat dissipation holes are formed in the nylon layer, and the inner side face of the nylon layer is completely attached to the outer ring face of the second isolation protection layer. The nylon layer is made of nylon materials, the nylon has self-lubricating property, the friction coefficient of the nylon is low, and the second isolation protection layer can be guaranteed to rotate relative to the first isolation protection layer.

Furthermore, filling materials are filled between the inner side of the heat-conducting sleeve and the outer side of each cable core. The protective effect on the cable core can be enhanced by the filling material.

Still further, the filling includes PP cords. The PP rope is made of polypropylene, the polypropylene is semi-crystalline thermoplastic plastic, and has high impact resistance, high mechanical property and high toughness, and can resist corrosion of various organic solvents and acid and alkali, so that a good protection effect on a cable core can be realized.

Furthermore, one side of the push plate, which is opposite to the cable core, is fixed with an outer arc sheet attached to the outer arc side of the corresponding support body, and one side of the push plate, which is opposite to the cable core, is fixed with an inner arc sheet attached to the inner arc side of the corresponding support body. Through outer arc piece and the centre gripping of interior arc piece in the supporter both sides, can prevent that the push pedal from taking place the skew, and promote the in-process of push pedal at the thermal energy piece, through the attached removal of supporter of outer arc piece and interior arc piece, can carry out spacing direction to the removal of push pedal to be favorable to the mobility stability of guarantee push pedal, still be favorable to resetting of push pedal.

Furthermore, a limiting block is fixed on the side where the fixed end of the supporting body is located. The stopper is along with this supporter stable position motionless, can carry on spacingly to the mobile terminal of the push pedal that the supporter adjacent that the stopper place side is connected corresponds with this supporter, prevents that the push pedal from removing excessively, realizes the removal stroke control to the push pedal to the turned angle of inoxidizing coating is kept apart to steerable second, guarantees interior louvre and outer radiating hole intercommunication.

Furthermore, each side of the rotating lantern ring back to the corresponding supporting component is provided with a fixed lantern ring fixedly sleeved on the heat conducting sleeve, and an elastic sleeve is connected between the opposite sides of the fixed lantern ring and the corresponding rotating lantern ring. Preheat the inflation at the thermal expansion piece and promote the push pedal, promote again and rotate the strip pivoted in, can drive corresponding rotation lantern ring and rotate, and the fixed lantern ring that corresponds does not change for the elasticity external member that corresponds takes place to twist reverse, and then after the heat dissipation, the expansion effect of thermal expansion piece disappears, under the elasticity of elasticity external member reset action, drives and rotates the lantern ring antiport, and it can drive the second through rotating the strip and keep apart the inoxidizing coating and rotate to reseing. The provision of the retaining collar and the resilient sleeve is advantageous to facilitate repositioning of the second barrier shield.

3. Advantageous effects

(1) The functional protective layer comprises a first isolation protective layer and a second isolation protective layer which are provided with heat dissipation holes, and the heat dissipation holes on the first isolation protective layer and the second isolation protective layer are distributed in a staggered mode in an initial state, so that the isolation protection effect of the double-layer isolation protective layer on a cable core can be guaranteed; a heat conducting sleeve is sleeved outside the cable core, a supporting body is fixed on the heat conducting sleeve, a thermal expansion block is arranged in the supporting body, a rotating sleeve ring is sleeved on the heat conducting sleeve, a rotating strip which is radially connected to the second isolation protective layer is fixed on the rotating sleeve ring, a push plate for pushing the rotating strip to rotate is fixed at one end of the thermal expansion block, when the cable core is heated, the heat is transferred to the supporting body, the thermal expansion block is thermally expanded, the corresponding rotating strip can be pushed by the push plate, thereby driving the rotating lantern ring at the heating part of the cable and the rotating strip on the rotating lantern ring to rotate, and then driving the second isolation protective layer to rotate relative to the first isolation protective layer, can make interior louvre and outer louvre intercommunication, at this moment, the heat of cable core can be more give off to the function inoxidizing coating outside, and the heat can be very fast radiate to go in the surrounding space, has realized the quick radiating effect of cable.

(2) The supporting body, the rotating lantern ring and the rotating strip are arranged between the cable core and the second isolation protective layer, so that a better supporting effect can be provided, the strength of the cable is improved, and the supporting body is arranged in an arc-shaped structure, so that the force acting on the supporting body in the range can be dispersed to two sides, and the compression resistance of the cable can be enhanced; and the support assembly and the rotating lantern ring are distributed at equal intervals along the length direction of the heat-conducting sleeve, so that the bending performance of the cable cannot be influenced.

In conclusion, the cable has an excellent self-heat dissipation function, can realize quick heat dissipation of the cable, and improves the strength and the pressure resistance of the cable.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention in example 1;

fig. 2 is a side view of a structure provided on a heat conductive sleeve 5 in example 1;

fig. 3 is a side view of the first barrier-protective layer 2;

fig. 4 is a schematic cross-sectional view of the present invention in example 2, and shows only the structure inside the second barrier shield layer 3;

fig. 5 is a side view of a structure provided on a heat conductive sleeve 5 in example 2.

Reference numerals: 1. an outer protective layer; 2. a first barrier shield layer; 3. a second barrier shield layer; 4. rotating the lantern ring; 5. a heat conducting sleeve; 6. a cable core; 7. rotating the strip; 8. a support body; 9. a thermal expansion block; 10. pushing the plate; 11. a filler; 12. a nylon layer; 13. an outer heat dissipation aperture; 14. internal heat dissipation holes; 15. a limiting block; 16. an arc-shaped slot; 17. an outer arc piece; 18. an inner arc piece; 19. a fixed collar; 20. an elastic sleeve.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Example 1

The heat dissipation cable shown in fig. 1 comprises a cable core, a functional protection layer and an outer protection layer 1 which are sequentially arranged from inside to outside, wherein at least two cable cores 6 (five cable cores 6 are shown in the figure) are arranged in the cable core, and each cable core 6 comprises a conductor, and a shielding layer and an insulating layer which are coated outside the conductor; the cable core is externally sleeved with a heat-conducting sleeve 5, the functional protection layer comprises a second isolation protection layer 3 sleeved outside the heat-conducting sleeve 5 and a first isolation protection layer 2 sleeved outside the second isolation protection layer 3, and the outer protection layer 1 is sleeved outside the first isolation protection layer 2;

as shown in fig. 1 and 2, a plurality of support assemblies are fixed on the heat conducting sleeve 5 along the length direction thereof, each support assembly includes at least two support bodies 8 fixed at equal intervals along the circumference of the heat conducting sleeve 5, the length direction of each support body 8 is in an arc shape concentric with the cable core, and one end of each support body 8 in the length direction is fixedly connected to the heat conducting sleeve 5; the heat conducting sleeve 5 is rotatably sleeved with rotating sleeve rings 4 which correspond to the supporting components one to one, the rotating sleeve rings 4 are located on one sides of the corresponding supporting components one to one, rotating strips 7 which correspond to the supporting bodies 8 on the same group of supporting components one to one are fixed on the rotating sleeve rings 4 at equal intervals along the peripheral sides of the rotating sleeve rings, the rotating strips 7 are located in the radial direction of the cable, each rotating strip 7 is located on one side of the free end of the corresponding supporting body 8 (namely the side where one end of the supporting body 8 back to the fixed end of the supporting body is located), an arc-shaped groove 16 which is bent along the radian of the supporting body 8 and penetrates through the free end of the supporting body is formed in the supporting body 8, a heat expansion block 9 is arranged in the arc-shaped groove 16 in a filling mode, a push plate 10 which is located on the outer side of the arc-shaped groove 16 is fixed on the outer side of the heat expansion block 9, and one side of the push plate 10 is fixed on the corresponding rotating strip 7;

as shown in fig. 1, a cavity for accommodating the supporting body 8 and the rotating strip 7 is formed between the second isolation protection layer 3 and the heat conducting sleeve 5, and one end of the rotating strip 7, which faces away from the rotating sleeve ring 4, is embedded inside the second isolation protection layer 3, the inner ring surface of the first isolation protection layer 2 is completely attached to the outer ring surface of the second isolation protection layer 3, at least one row of inner heat dissipation holes 14 (eight rows of inner heat dissipation holes 14 are shown in the drawing) are formed on the second isolation protection layer 3 at equal intervals along the circumferential side of the second isolation protection layer, as shown in fig. 1 and 3, the first isolation protection layer 2 is provided with outer heat dissipation holes 13 at equal intervals along the circumferential side of the first isolation protection layer, which correspond to the inner heat dissipation holes 14 one by one, and the inner heat dissipation holes 14 and the outer heat dissipation holes 13 are distributed in a staggered manner in an initial state; the second isolation protection layer 3 can rotate relative to the first isolation protection layer 2, and after the second isolation protection layer 3 rotates, the inner heat dissipation holes 14 can be communicated with the outer heat dissipation holes 13.

The supporting body 8 and the heat conducting sleeve 5 are both made of copper wires, and the rotating lantern ring 4, the rotating strip 7 and the push plate 10 are made of metal; the thermal expansion block 9 is composed of thermally expandable microspheres bonded together by a binder resin.

In this embodiment, the second isolation-protection layer 3 and the first isolation-protection layer 2 are both flame-retardant and thermal-insulation layers, and the flame-retardant and thermal-insulation layers are made of at least one of asbestos, glass fiber, calcium silicate and the like. Although the heat dissipation holes are formed in the second isolation protection layer 3 and the first isolation protection layer 2, the inner ring surface of the first isolation protection layer 2 is completely attached to the outer ring surface of the second isolation protection layer 3, and the inner heat dissipation holes 14 and the outer heat dissipation holes 13 are distributed in a staggered mode in the initial state, so that the second isolation protection layer 3 and the first isolation protection layer 2 can normally exert the flame-retardant and heat-insulating effects while the heat dissipation of the cable core can be promoted.

In this embodiment, as shown in fig. 1, a nylon layer 12 is fixed on an inner side surface of the first isolation protection layer 2, through holes aligned with the outer heat dissipation holes 13 are formed in the nylon layer 12 in a one-to-one correspondence, and an inner side surface of the nylon layer 12 is completely attached to an outer annular surface of the second isolation protection layer 3. The nylon layer 12 is made of nylon, the nylon has self-lubricating property and low friction coefficient, and the second isolation protection layer 3 can be ensured to rotate relative to the first isolation protection layer 2.

In the present embodiment, as shown in fig. 1, a filling material 11 is filled between the inner side of the heat-conducting sleeve 5 and the outer side of each cable core 6; and the filling 11 comprises PP cords. The PP rope is made of polypropylene, the polypropylene is semi-crystalline thermoplastic plastic, and has high impact resistance, high mechanical property and high toughness, and can resist corrosion of various organic solvents and acid and alkali, so that a good protection effect on the cable core 6 can be realized.

In the present embodiment, as shown in fig. 1 and 2, a stopper 15 is fixed to the side of the fixed end of the support body 8. The stopper 15 is along with this supporter 8 steady position motionless, can carry on spacingly to the mobile terminal of the push pedal 10 that the supporter 8 that is connected with this stopper 15 of stopper 15 place side corresponds, prevents that the push pedal 10 from moving excessively, realizes the removal stroke control to the push pedal 10 to the turned angle of inoxidizing coating 3 is kept apart to steerable second, guarantees interior louvre 14 and outer louvre 13 intercommunication.

The specific action principle of the heat dissipation cable is as follows:

the outer protection layer 1 forms a first heavy protection barrier for the cable core, and the first isolation protection layer 2 and the second isolation protection layer 3 form a second heavy protection barrier for the cable core, so that the cable core can be well protected.

When the cable core 6 is applied and works, heat is firstly conducted to the heat conducting sleeve 5 and then conducted to the supporting body 8 and the cavity where the heat conducting sleeve is located, the thermal expansion block 9 is heated and expanded, the inner side end and the peripheral side of the thermal expansion block 9 are limited by the supporting body 8, so that the thermal expansion block 9 is expanded and extends out of the arc-shaped groove 16, the push plate 10 moves along with the thermal expansion block to push the corresponding rotating strip 7, the rotating sleeve ring 4 at the cable heating position and the rotating strip 7 on the rotating sleeve ring 4 are driven to rotate, one end of the rotating strip 7, which is opposite to the rotating sleeve ring 4, is embedded into the second isolation protective layer 3, so that the second isolation protective layer 3 is driven to rotate, the moving stroke of the push plate 10 is limited by the limiting block 15, namely, after the rotating angle of the second isolation protective layer 3 is controlled, the inner heat dissipation hole 14 is communicated with the outer heat dissipation hole 13, at the moment, the heat of the cable core can be dissipated to the outside of the functional protective layer more, the heat can be radiated to the surrounding space quickly, and the effect of quickly radiating the cable is achieved.

The supporting body 8, the rotating lantern ring 4 and the rotating strip 7 are arranged between the cable core and the second isolation protective layer 3, so that a better supporting effect can be provided, the strength of the cable is improved, and the supporting body 8 is arranged in an arc-shaped structure, so that the force acting in the range of the supporting body 8 can be dispersed to two sides, and the compression resistance of the cable can be enhanced; and the support component and the rotating lantern ring 4 are distributed at equal intervals along the length direction of the heat-conducting sleeve 5, so that the bending performance of the cable is not influenced.

Example 2

The present embodiment is different from embodiment 1 in that:

in this embodiment, as shown in fig. 4, an outer arc piece 17 attached to the outer arc side of the corresponding support 8 is fixed to a side of the push plate 10 facing away from the cable core, and an inner arc piece 18 attached to the inner arc side of the corresponding support 8 is fixed to a side of the push plate 10 facing the cable core. Through outer arc piece 17 and the centre gripping of interior arc piece 18 in the 8 both sides of supporter, can prevent that push pedal 10 from taking place the skew, and promote the in-process of push pedal 10 at thermal expansion block 9, through outer arc piece 17 and the attached removal of supporter 8 of interior arc piece 18, can carry out spacing direction to the removal of push pedal 10 to be favorable to the mobility stability of guarantee push pedal 10, still be favorable to resetting of push pedal 10.

In this embodiment, as shown in fig. 5, a fixed collar 19 fixedly sleeved on the heat conducting sleeve 5 is disposed on a side of each of the rotating collars 4 facing away from the corresponding supporting component, and an elastic sleeve 20 is connected between the fixed collar 19 and an opposite side of the corresponding rotating collar 4. Preheating expansion at thermal expansion block 9 and promoting push pedal 10, promote again and rotate strip 7 pivoted simultaneously, can drive corresponding rotation lantern ring 4 and rotate, and corresponding fixed lantern ring 19 does not rotate for corresponding elasticity external member 20 takes place to twist reverse, and then after the heat dissipation, thermal expansion block 9's expansion effect disappears, under the elasticity reset action of elasticity external member 20, drives and rotates lantern ring 4 antiport, and it can drive second isolation protective layer 3 through rotating strip 7 and rotate to reseing. The provision of the fixing collar 19 and the elastic sleeve 20 is advantageous in facilitating the resetting of the second barrier-shield layer 3.

Otherwise, the same procedure as in example 1 was repeated.

According to the invention, the cable has an excellent self-heat dissipation function, can realize rapid heat dissipation of the cable, and improves the strength and the pressure resistance of the cable.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.