CN212342347U

CN212342347U - Improved heat dissipation cable and photoelectric composite cable

Info

Publication number: CN212342347U
Application number: CN202021664516.3U
Authority: CN
Inventors: 袁红
Original assignee: Changshu Liangfang Intelligent Technology Co ltd
Current assignee: Changshu Liangfang Intelligent Technology Co ltd
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2021-01-12
Anticipated expiration: 2030-08-12

Abstract

The utility model belongs to the technical field of electric power and cables, in particular to an improved heat dissipation cable which is provided with a protection tube and a power transmission component; the heat dissipation device is characterized in that a partition part is arranged in the protection tube, one end of the partition part is connected to the inner wall of the protection tube, the other ends of the partition part are connected together and located in the center of the protection tube, a bent isolation part is arranged at the joint of the partition part, and a cavity formed by the adjacent partition parts and the protection tube is divided into an accommodating cavity and a heat dissipation cavity which are communicated through the isolation part; the power transmission component is positioned in the accommodating cavity. The application also discloses a photoelectric composite cable. The utility model discloses following main beneficial effect has: the structure is simpler, the stripping is more convenient, and the heat dissipation effect is better.

Description

Improved heat dissipation cable and photoelectric composite cable

Technical Field

The utility model belongs to the technical field of electric power and cable, especially, relate to a modified heat dissipation cable and photoelectricity are synthesized cable.

Background

CN210956262U discloses a high-efficient heat dissipation cable, it is outer including the cable, be equipped with a plurality of extensions in the cable skin, it arranges the chamber to form a sinle silk between extension and the cable skin, the sinle silk is arranged the intracavity and is arranged the sinle silk, form a buffer channel between two adjacent extensions, a plurality of buffers have been placed in the buffer channel, the laminating of buffer block surface has two conducting strips, the one deck of conducting strip is equipped with an extension piece, the one end of extension piece is passed the extension and is inserted to the buffer channel in, the one end protrusion of extension is outer in the cable, be equipped with the fresh air inlet on this end, be equipped with the interface channel who switches on with the fresh. The utility model has simple structure, good heat dissipation effect and longer service life; the pressure-resistant effect is good, and the transportation is not easy to crush.

CN208970195U discloses a high-efficiency fire-resistant heat-dissipating cable, wherein the shielding belt is wrapped and overlapped by wave-shaped overlapping sections at two sides to form the shielding layer; a heat collecting cavity is arranged between the shielding layer and the heat collecting sheath, and the heat collecting cavity is communicated to the outer surface of the cable through a heat radiating hole; the armored steel strip is formed into the metal armored layer by mutually wrapping and lapping the steel strip lapping sections at two sides, the steel strip lapping section at one side of the armored steel strip is provided with an embedding hole, the steel strip lapping section at the other side of the armored steel strip is provided with an embedding lug boss, and the embedding lug boss is embedded into the embedding hole during lapping; the cable not only has extremely high-temperature-resistant flame-retardant performance, but also can efficiently dissipate heat, and has stable structural integrity and higher mechanical performance.

CN205984384U discloses an internal heat dissipation cable, in which a core includes a conductive wire formed by twisting a plurality of conductive wires, an internal shielding layer is extruded outside the conductive wire, an insulating heat dissipation layer is extruded outside the internal shielding layer, and an external shielding layer is extruded outside the insulating heat dissipation layer; the insulating heat dissipation layer comprises an inner layer and an outer layer which is fixed outside the inner layer in a wrapping mode, a plurality of support ribs are arranged in a cavity between the inner layer and the outer layer along the length direction of the cable, and the cavity is divided into a plurality of heat dissipation cavities by the support ribs. In this interior heat dissipation cable, including insulating heat dissipation layer in the sinle silk, can strengthen the heat dissipation of wire again when playing insulating effect. The heat dissipation cavity is provided with the heat dissipation cavity, heat generated by the working process of the lead can be conducted to the heat dissipation cavity channel through the inner layer, the heat dissipation effect is particularly remarkable when the lead is in a local overheating condition, the heat at the part can be rapidly diffused, the temperature of each part of the whole cable is balanced and adjusted, and damage to the cable caused by local overheating due to unsmooth heat dissipation is avoided.

Although the cables can increase the heat dissipation effect of the cables to a certain extent, the applicant thinks that the cables mainly have the following defects that (1) the insulating wires are mutually contacted and the mutual influence of heat generation is large; (2) heat is dissipated through the holes in the insulating layer, losing safety.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the present invention provides an improved heat dissipation cable and an improved optical/electrical composite cable, which are implemented by the following technical solutions.

An improved heat dissipation cable comprises a protection tube, a first power transmission component, a second power transmission component and a third power transmission component, wherein the first power transmission component, the second power transmission component and the third power transmission component are positioned in the protection tube; the heat dissipation device is characterized in that a first dividing part, a second dividing part and a third dividing part are arranged in the protection pipe, one end of the first dividing part is connected to the inner wall of the protection pipe, one end of the second dividing part is connected to the inner wall of the protection pipe, one end of the third dividing part is connected to the inner wall of the protection pipe, the other ends of the first dividing part, the second dividing part and the third dividing part are connected together and located in the center of the protection pipe, a bent first isolation part is arranged at the connecting position of the other end of the first dividing part and the other end of the second dividing part, and a cavity defined by the first dividing part, the second dividing part and the protection pipe is divided into a first containing cavity and a first heat dissipation cavity which are communicated by the first isolating part; the other end of the second dividing part is connected with the other end of the third dividing part, and a bent second isolating part is arranged at the joint of the other end of the second dividing part and the other end of the third dividing part, and divides a cavity formed by the second dividing part, the third dividing part and the protection pipe into a second accommodating cavity and a second heat dissipation cavity which are communicated; a bent third isolation part is arranged at the joint of the other end of the third dividing part and the other end of the first dividing part, and the third isolation part divides a cavity formed by the third dividing part, the first dividing part and the protection tube into a third accommodating cavity and a third heat dissipation cavity which are communicated; the first power transmission component is positioned in the first accommodating cavity, the second power transmission component is positioned in the second accommodating cavity, and the third power transmission component is positioned in the third accommodating cavity.

An improved heat dissipation cable is characterized in that the first accommodating cavity is a part of a cylinder.

An improved heat dissipation cable is characterized in that the second accommodating cavity is a part of a cylinder.

The improved heat dissipation cable is characterized in that the third accommodating cavity is a part of a cylinder.

The improved heat dissipation cable is characterized in that the protection tube, the first dividing component, the second dividing component, the third dividing component, the first isolation component, the second isolation component and the third isolation component are integrally formed.

The improved heat dissipation cable is characterized in that the protective tube is made of polypropylene or polybutylene terephthalate or low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halogen-free polyethylene or low-smoke low-halogen polyethylene or polyvinyl chloride or nylon or polytetrafluoroethylene or TPE or TPU.

The improved heat dissipation cable is characterized in that the first insulating layer is made of polypropylene or polybutylene terephthalate or low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halogen-free polyethylene or low-smoke low-halogen polyethylene or polyvinyl chloride or nylon or polytetrafluoroethylene or TPE or TPU.

The improved heat dissipation cable is characterized in that the second insulating layer is made of polypropylene or polybutylene terephthalate or low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halogen-free polyethylene or low-smoke low-halogen polyethylene or polyvinyl chloride or nylon or polytetrafluoroethylene or TPE or TPU.

The improved heat dissipation cable is characterized in that the third insulating layer is made of polypropylene, polybutylene terephthalate, low-density polyethylene, medium-density polyethylene, high-density polyethylene, low-smoke halogen-free polyethylene, low-smoke low-halogen polyethylene, polyvinyl chloride, nylon, polytetrafluoroethylene, TPE or TPU.

An improved heat dissipating cable as described above, characterized in that the material of the first electrical conductor is copper or aluminum or an alloy.

An improved heat dissipating cable as described above, characterized in that the material of the second electrical conductor is copper or aluminum or an alloy.

An improved heat dissipation cable as described above, characterized in that the material of the third electrical conductor is copper or aluminium or an alloy.

The improved heat dissipation cable is characterized in that the outer surface of the protection tube is a cylindrical surface, an elliptic cylindrical surface or a polyhedral cylindrical surface.

The improved heat dissipation cable is characterized in that the protection tube is of an integrated structure.

An improved heat-dissipation photoelectric composite cable comprises a protection tube, a first power transmission component, a second power transmission component, a third power transmission component, a first loose tube, a second loose tube and a third loose tube, wherein the first power transmission component, the second power transmission component, the third power transmission component, the first loose tube and the third loose tube are positioned in the protection tube, the first power transmission component is composed of a first electric conductor and a first insulating layer covering the first electric conductor, the second power transmission component is composed of a second electric conductor and a second insulating layer covering the second electric conductor, the first loose tube is composed of a first optical conductor and a first tube body positioned outside the first optical conductor, a gap is formed between the first optical conductor and the inner wall of the first tube body, the second loose tube is composed of a second optical conductor and a second tube body positioned outside the second optical conductor, and a gap is formed between the second optical conductor and the inner wall of the second tube body, the third loose tube is composed of a third optical conductor and a third tube body positioned outside the third optical conductor, and a gap is formed between the third optical conductor and the inner wall of the third tube body; the heat dissipation device is characterized in that a first dividing part, a second dividing part and a third dividing part are arranged in the protection pipe, one end of the first dividing part is connected to the inner wall of the protection pipe, one end of the second dividing part is connected to the inner wall of the protection pipe, one end of the third dividing part is connected to the inner wall of the protection pipe, the other ends of the first dividing part, the second dividing part and the third dividing part are connected together and located in the center of the protection pipe, a bent first isolation part is arranged at the connecting position of the other end of the first dividing part and the other end of the second dividing part, and a cavity defined by the first dividing part, the second dividing part and the protection pipe is divided into a first containing cavity and a first heat dissipation cavity which are communicated by the first isolating part; the other end of the second dividing part is connected with the other end of the third dividing part, and a bent second isolating part is arranged at the joint of the other end of the second dividing part and the other end of the third dividing part, and divides a cavity formed by the second dividing part, the third dividing part and the protection pipe into a second accommodating cavity and a second heat dissipation cavity which are communicated; a bent third isolation part is arranged at the joint of the other end of the third dividing part and the other end of the first dividing part, and the third isolation part divides a cavity formed by the third dividing part, the first dividing part and the protection tube into a third accommodating cavity and a third heat dissipation cavity which are communicated; the first power transmission component is positioned in the first accommodating cavity, the second power transmission component is positioned in the second accommodating cavity, and the third power transmission component is positioned in the third accommodating cavity; the first loose tube is positioned in the first heat dissipation cavity, the second loose tube is positioned in the second heat dissipation cavity, and the third loose tube is positioned in the third heat dissipation cavity.

The improved heat-dissipation photoelectric composite cable is characterized in that the first optical conductor, the second optical conductor and the third optical conductor are all optical fibers.

The improved heat dissipation photoelectric composite cable is characterized in that the type of the optical fiber is G.652, G.653, G.654, G.655, G.656, G.657, A1a, A1b, A1c, A1d, OM1, OM2, OM3 or OM 4.

The improved heat dissipation photoelectric composite cable is characterized in that the first sleeve body is made of polypropylene, polybutylene terephthalate, low-density polyethylene, medium-density polyethylene, high-density polyethylene, low-smoke halogen-free polyethylene, low-smoke low-halogen polyethylene, polyvinyl chloride, nylon, polytetrafluoroethylene, TPE or TPU.

The improved heat dissipation photoelectric composite cable is characterized in that the second sleeve body is made of polypropylene, polybutylene terephthalate, low-density polyethylene, medium-density polyethylene, high-density polyethylene, low-smoke halogen-free polyethylene, low-smoke low-halogen polyethylene, polyvinyl chloride, nylon, polytetrafluoroethylene, TPE or TPU.

The improved heat dissipation photoelectric composite cable is characterized in that the third sleeve body is made of polypropylene, polybutylene terephthalate, low-density polyethylene, medium-density polyethylene, high-density polyethylene, low-smoke halogen-free polyethylene, low-smoke low-halogen polyethylene, polyvinyl chloride, nylon, polytetrafluoroethylene, TPE or TPU.

The improved heat dissipation photoelectric composite cable is characterized in that a water-blocking filler is arranged inside the sleeve body.

The utility model discloses following main beneficial effect has: the structure is simpler, the stripping is more convenient, and the heat dissipation effect is better.

Drawings

Fig. 1 is a schematic perspective view of a section of an anatomical structure according to example 1 of the present application.

Fig. 2 is an enlarged cross-sectional structure diagram of fig. 1.

Fig. 3 is a schematic perspective view of a dissected length of a protective tube used in the present application.

Fig. 4 is an enlarged cross-sectional view of fig. 3.

Fig. 5 is a schematic perspective view of a section of anatomy according to example 2 of the present application.

Fig. 6 is an enlarged cross-sectional view of fig. 5.

In order that those skilled in the art will more accurately and clearly understand and practice the present application, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, in which: 1-protective tube, 11-first division part, 12-second division part, 13-third division part, 112-first isolation part, 114-first containing cavity, 115-first radiating cavity, 123-second isolation part, 131-third isolation part, 124-second containing cavity, 125-second radiating cavity, 134-third containing cavity, 135-third radiating cavity, 21-first power transmission part, 22-second power transmission part and 23-third power transmission part, 211-first electrical conductor, 212-first insulating layer, 221-second electrical conductor, 222-second insulating layer, 231-third electrical conductor, 232-third insulating layer, 31-first loose tube, 32-second loose tube, 33-third loose tube, 311-first optical conductor, 312-first sleeve body, 321-second optical conductor, 322-second sleeve body, 331-third optical conductor, 332-third sleeve body.

Detailed Description

Examples 1

Referring to fig. 1 to 4, an improved heat dissipation cable includes a protective tube 1, a first power transmission component 21, a second power transmission component 22, and a third power transmission component 23 disposed in the protective tube 1, wherein the first power transmission component 21 is composed of a first electrical conductor 211 and a first insulating layer 212 covering the first electrical conductor 211, the second power transmission component 22 is composed of a second electrical conductor 221 and a second insulating layer 222 covering the second electrical conductor 221, and the third power transmission component 23 is composed of a third electrical conductor 231 and a third insulating layer 232 covering the third electrical conductor 231; the protection tube is characterized in that a first segmentation part 11, a second segmentation part 12 and a third segmentation part 13 are arranged inside the protection tube 1, one end of the first segmentation part 11 is connected to the inner wall of the protection tube, one end of the second segmentation part 12 is connected to the inner wall of the protection tube, one end of the third segmentation part 13 is connected to the inner wall of the protection tube, the other ends of the first segmentation part 11, the second segmentation part 12 and the third segmentation part 13 are connected together and are positioned in the center of the protection tube, a bent first isolation part 112 is arranged at the connection position of the other end of the first segmentation part 11 and the other end of the second segmentation part 12, and the first isolation part 112 divides a cavity formed by the first segmentation part, the second segmentation part and the protection tube into a first accommodating cavity 114 and a first heat dissipation cavity 115 which are communicated with each other; a bent second isolation part 123 is arranged at the joint of the other end of the second dividing part 12 and the other end of the third dividing part 13, and the second isolation part 123 divides a cavity formed by the second dividing part, the third dividing part and the protection pipe into a second accommodating cavity 124 and a second heat dissipation cavity 125 which are communicated; a bent third isolation part 131 is arranged at the joint of the other end of the third segmentation part 13 and the other end of the first segmentation part 11, and the third isolation part 131 divides a cavity formed by the third segmentation part, the first segmentation part and the protection tube into a third accommodating cavity 134 and a third heat dissipation cavity 135 which are communicated; the first power transmission component 21 is located in the first accommodation chamber 114, the second power transmission component 22 is located in the second accommodation chamber 124, and the third power transmission component 23 is located in the third accommodation chamber 134.

An improved heat dissipation cable as described above, wherein the first power transmission component cannot enter the first heat dissipation chamber when the first isolation component is pulled open without application of a force.

An improved heat dissipation cable as described above, wherein the second power transmission component cannot enter the second heat dissipation chamber without the application of force to toggle the second isolation component open.

An improved heat dissipation cable as described above, wherein the third power transmission component cannot enter the third heat dissipation chamber without applying a force to toggle the third isolation component open.

EXAMPLES example 2

Referring to fig. 5 and 6 and fig. 1 to 4, an improved heat dissipation optical-electrical composite cable is substantially the same as embodiment 1, except that: the light guide tube is further provided with a first loose tube 31, a second loose tube 32 and a third loose tube 33, wherein the first loose tube is composed of a first light conductor 311 and a first tube body 312 positioned outside the first light conductor 311, a gap is formed between the inner walls of the first light conductor and the first tube body, the second loose tube is composed of a second light conductor 321 and a second tube body 322 positioned outside the second light conductor 321, a gap is formed between the inner walls of the second light conductor and the second tube body, the third loose tube is composed of a third light conductor 331 and a third tube body 312 positioned outside the third light conductor 331, a gap is formed between the inner walls of the third light conductor and the third tube body, the first loose tube 31 is positioned in the first heat dissipation cavity, the second loose tube 32 is positioned in the second heat dissipation cavity, and the third loose tube 33 is positioned in the third heat dissipation cavity.

In the application, the number of the first dividing parts, the number of the isolating parts, the number of the accommodating cavities and the number of the heat dissipation cavities are not limited to the three first dividing parts, the three isolating parts, the three accommodating cavities and the three heat dissipation cavities, and the number of the first dividing parts, the three isolating parts, the three accommodating cavities and the three heat dissipation; thus the cable or cable density is greater.

In this application, the existence in heat dissipation chamber and heat dissipation chamber communicate with each other with the holding chamber, and transmission of electricity part generates heat and can transmit the heat dissipation chamber, has realized the bypass heat dissipation, has improved the radiating effect, and moreover, heat dissipation chamber, holding chamber all are close to with the protection tube mutually, so the heat dissipation is more direct.

In the application, the heat dissipation effect is improved by adopting a bypass heat dissipation mode; the accommodating cavity and the dividing component are adopted to limit the power transmission component, so that the structure is more stable and reliable; the division component has the functions of isolating the power transmission components, fixing the positions of the power transmission components relatively and hooking the power transmission components, and the power transmission components which are connected with each other are not in contact with each other, so that the mutual influence of heating is reduced.

The above-mentioned embodiments are merely preferred technical solutions of the present invention, and should not be construed as limitations of the present invention. The protection scope of the present invention shall be defined by the claims and the technical solutions described in the claims, including the technical features of the equivalent alternatives as the protection scope. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.

Claims

1. An improved heat dissipation cable has a protective tube (1), a first power transmission component (21), a second power transmission component (22), and a third power transmission component (23) located inside the protective tube (1), the first power transmission component (21) being composed of a first electrical conductor (211) and a first insulating layer (212) covering the first electrical conductor (211), the second power transmission component (22) being composed of a second electrical conductor (221) and a second insulating layer (222) covering the second electrical conductor (221), the third power transmission component (23) being composed of a third electrical conductor (231) and a third insulating layer (232) covering the third electrical conductor (231); it is characterized in that a first dividing component (11), a second dividing component (12) and a third dividing component (13) are arranged in the protection tube (1), one end of the first dividing component (11) is connected with the inner wall of the protection tube, one end of the second dividing component (12) is connected with the inner wall of the protection tube, one end of the third dividing component (13) is connected with the inner wall of the protection tube, the other ends of the first dividing component (11), the second dividing component (12) and the third dividing component (13) are connected together and positioned in the center of the protection tube, a bent first isolating component (112) is arranged at the connecting position of the other end of the first dividing component (11) and the other end of the second dividing component (12), the first isolation part (112) divides a cavity formed by the first dividing part, the second dividing part and the protection pipe into a first containing cavity (114) and a first heat dissipation cavity (115) which are communicated; a bent second isolation part (123) is arranged at the joint of the other end of the second dividing part (12) and the other end of the third dividing part (13), and the second isolation part (123) divides a cavity formed by the second dividing part, the third dividing part and the protection pipe into a second accommodating cavity (124) and a second heat dissipation cavity (125) which are communicated; a bent third isolation part (131) is arranged at the joint of the other end of the third segmentation part (13) and the other end of the first segmentation part (11), and the third isolation part (131) divides a cavity formed by the third segmentation part, the first segmentation part and the protection pipe into a third accommodating cavity (134) and a third heat dissipation cavity (135) which are communicated; the first power transmission component (21) is located in the first accommodating cavity (114), the second power transmission component (22) is located in the second accommodating cavity (124), and the third power transmission component (23) is located in the third accommodating cavity (134).

2. The improved heat dissipating cable of claim 1, wherein the protective tube, the first divided member, the second divided member, the third divided member, the first insulating member, the second insulating member, and the third insulating member are integrally formed.

3. An improved heat dissipation cable as recited in claim 1, wherein the material of the protection tube is polypropylene or polybutylene terephthalate or low density polyethylene or medium density polyethylene or high density polyethylene or low smoke zero halogen polyethylene or low smoke low halogen polyethylene or polyvinyl chloride or nylon or polytetrafluoroethylene or TPE or TPU.

4. An improved heat dissipation cable as recited in claim 1, wherein the material of the first insulating layer is polypropylene or polybutylene terephthalate or low density polyethylene or medium density polyethylene or high density polyethylene or low smoke zero halogen polyethylene or low smoke low halogen polyethylene or polyvinyl chloride or nylon or polytetrafluoroethylene or TPE or TPU.

5. An improved heat dissipation cable as recited in claim 1, wherein the material of the second insulating layer is polypropylene or polybutylene terephthalate or low density polyethylene or medium density polyethylene or high density polyethylene or low smoke zero halogen polyethylene or low smoke low halogen polyethylene or polyvinyl chloride or nylon or polytetrafluoroethylene or TPE or TPU.

6. An improved heat dissipation cable as recited in claim 1, wherein the material of the third insulating layer is polypropylene or polybutylene terephthalate or low density polyethylene or medium density polyethylene or high density polyethylene or low smoke zero halogen polyethylene or low smoke low halogen polyethylene or polyvinyl chloride or nylon or polytetrafluoroethylene or TPE or TPU.

7. An improved heat dissipation cable according to claim 1, wherein the material of the first electrical conductor is copper or aluminum or an alloy.

8. An improved heat dissipating cable according to claim 1, wherein the protective tube is of a one-piece construction.

9. An improved heat dissipation photoelectric composite cable comprises a protection tube (1), a first power transmission component (21), a second power transmission component (22), a third power transmission component (23), a first loose tube (31), a second loose tube (32) and a third loose tube (33) which are positioned in the protection tube (1), wherein the first power transmission component (21) is composed of a first electric conductor (211) and a first insulating layer (212) covering the first electric conductor (211), the second power transmission component (22) is composed of a second electric conductor (221) and a second insulating layer (222) covering the second electric conductor (221), the third power transmission component (23) is composed of a third electric conductor (231) and a third insulating layer (232) covering the third electric conductor (231), the first loose tube is composed of a first optical conductor (311) and a first tube body (312) positioned outside the first optical conductor (311), a gap is formed between the first optical conductor and the inner wall of the first sleeve body, the second loose sleeve is composed of a second optical conductor (321) and a second sleeve body (322) positioned outside the second optical conductor (321), a gap is formed between the second optical conductor and the inner wall of the second sleeve body, the third loose sleeve is composed of a third optical conductor (331) and a third sleeve body (332) positioned outside the third optical conductor (331), and a gap is formed between the third optical conductor and the inner wall of the third sleeve body; it is characterized in that a first dividing component (11), a second dividing component (12) and a third dividing component (13) are arranged in the protection tube (1), one end of the first dividing component (11) is connected with the inner wall of the protection tube, one end of the second dividing component (12) is connected with the inner wall of the protection tube, one end of the third dividing component (13) is connected with the inner wall of the protection tube, the other ends of the first dividing component (11), the second dividing component (12) and the third dividing component (13) are connected together and positioned in the center of the protection tube, a bent first isolating component (112) is arranged at the connecting position of the other end of the first dividing component (11) and the other end of the second dividing component (12), the first isolation part (112) divides a cavity formed by the first dividing part, the second dividing part and the protection pipe into a first containing cavity (114) and a first heat dissipation cavity (115) which are communicated; a bent second isolation part (123) is arranged at the joint of the other end of the second dividing part (12) and the other end of the third dividing part (13), and the second isolation part (123) divides a cavity formed by the second dividing part, the third dividing part and the protection pipe into a second accommodating cavity (124) and a second heat dissipation cavity (125) which are communicated; a bent third isolation part (131) is arranged at the joint of the other end of the third segmentation part (13) and the other end of the first segmentation part (11), and the third isolation part (131) divides a cavity formed by the third segmentation part, the first segmentation part and the protection pipe into a third accommodating cavity (134) and a third heat dissipation cavity (135) which are communicated; the first power transmission component (21) is positioned in the first accommodating cavity (114), the second power transmission component (22) is positioned in the second accommodating cavity (124), and the third power transmission component (23) is positioned in the third accommodating cavity (134); the first loose tube (31) is positioned in the first heat dissipation cavity, the second loose tube (32) is positioned in the second heat dissipation cavity, and the third loose tube (33) is positioned in the third heat dissipation cavity.

10. An improved heat dissipating optoelectric composite cable of claim 9, wherein the first, second, and third optical conductors are optical fibers; the type of the optical fiber is G.652, G.653, G.654, G.655, G.656, G.657, A1a, A1b, A1c, A1d, OM1, OM2, OM3 or OM 4.