CN213183725U

CN213183725U - Internal heat dissipation cable

Info

Publication number: CN213183725U
Application number: CN202022762964.3U
Authority: CN
Inventors: 蔡洪祥
Original assignee: Changshu Shantong Power Technology Co ltd
Current assignee: Changshu Shantong Power Technology Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-05-11
Anticipated expiration: 2030-11-25

Abstract

The utility model belongs to the technical field of power cables, and discloses an internal heat dissipation cable which is provided with a sheath component, four transmission conductors and a reinforcing component, wherein each transmission conductor consists of a conductor and an insulating layer coated outside the conductor; the protective sleeve is characterized by comprising an outer sheath and a partition part positioned in the outer sheath, wherein the outer sheath comprises an outer sheath first part, an outer sheath second part, an outer sheath third part and an outer sheath fourth part which are sequentially connected, and the outer sheath is in a rectangular ring column structure; the dividing component divides the space in the outer sheath into four containing cavities and an inner heat dissipation cavity, and the inner heat dissipation cavity is the space inside the quadrangular star-shaped column body; the reinforcement is located the interior heat dissipation intracavity, and four transmission conductor are located four holding cavitys respectively. The utility model discloses following main beneficial effect has: high strength, high space utilization rate and better heat dissipation effect.

Description

Internal heat dissipation cable

Technical Field

The utility model belongs to the technical field of power cable, especially, relate to an interior heat dissipation cable.

Background

The heat dissipation of the cable is always regarded by people in the technical field, and the excellent heat dissipation effect means that the heat resistance of the cable material can be reduced, and the cost can be reduced; the area of the conductor can be reduced under the same current-carrying condition; to this end, a person skilled in the art has made numerous studies, as disclosed in the following documents.

CN111933347A discloses a heat dissipation cable with an improved structure, which has a protection tube, 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 heat is dissipated through the accommodating cavity and the heat dissipation cavity which are communicated with each other inside.

CN207909565U discloses a can realize outside and inside common radiating easy heat dissipation cable, its technical scheme main points are easy heat dissipation cable, including many sinle silks and oversheath, the sinle silk includes the conductor, arrange the outer insulating layer of conductor in, still include the inner frame, the inner frame includes cylindric main part, encircle the brace rod that main part periphery wall equidistance was arranged, form the chamber that holds that is used for placing the sinle silk between the double-phase adjacent brace rod, the main part axle center is equipped with the through-hole, the through-hole inner wall is equipped with corrosion resistant layer, the cladding has the weaving layer in the periphery of inner frame, the oversheath cover is established in the weaving layer outside, a plurality of aluminium foil fragments have been inlayed on the outer wall of oversheath, one of them holds the intracavity and is equipped. The air duct is arranged in the accommodating cavity to dissipate heat.

CN210006534U discloses a heat dissipation cable for new energy automobile, which includes an inner layer skeleton, a predetermined number of cable cores, an insulating sheath and a wear-resistant protective sleeve sequentially covering the inner layer skeleton, a predetermined number of heat conducting fins, and a predetermined number of heat conducting pipes, wherein the inner layer skeleton includes a hollow cylinder and a predetermined number of skeleton plates with one end disposed around the hollow cylinder, each cable core includes a conductor, an insulating layer sequentially covering the conductor, a shielding layer, a flame-retardant layer, and a heat conducting sleeve, a predetermined number of accommodating cavities are formed between the inner layer skeleton and the insulating sheath, and each cable core is disposed in the accommodating cavity and the hollow cylinder respectively. The heat is dissipated through the heat conducting sleeve and the heat conducting pipe.

However, the applicant has found that it has the following drawbacks: (1) the cable is circular in cross section, the insulated wires are in line contact with the outer sheath, the central part and the insulated wires, and the heat dissipation effect is still to be improved; (2) the round cable is placed in the square wiring groove, so that the space utilization rate is low; (3) when insulated wires with different diameters are used, the diameter of the cable core can only be close to the diameter of the two additional center parts with the maximum diameter, so that the diameter is larger, the consumption of peripheral materials is increased, and the cost is increased. For this reason, the industry expects solutions to the corresponding technical problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the present invention discloses an internal heat dissipation cable, which is implemented by the following technical solution.

An internal heat dissipation cable is provided with a sheath component, four transmission leads and a reinforcement, wherein the transmission leads are composed of conductors and insulating layers coated outside the conductors; the protective sleeve is characterized by comprising an outer sheath and a partition part positioned in the outer sheath, wherein the outer sheath comprises an outer sheath first part, an outer sheath second part, an outer sheath third part and an outer sheath fourth part which are sequentially connected, and the outer sheath is in a rectangular ring column structure; the dividing component is composed of a first isolating strip, a second isolating strip, a third isolating strip and a fourth isolating strip, the first isolating strip extends out from the inner wall of the first part of the outer sheath and is bent at a fourth joint end at the position close to the other end, the second isolating strip extends out from the inner wall of the second part of the outer sheath and is bent at the first joint end at the position close to the other end, the third isolating strip extends out from the inner wall of the third part of the outer sheath and is bent at a second joint end at the position close to the other end, the fourth isolating strip extends out from the inner wall of the fourth part of the outer sheath and is bent at a third joint end at the position close to the other end, and the spliced and sealed parts of the first isolating strip, the second isolating strip, the third isolating strip and the fourth isolating strip form a quadrangular; the dividing component divides the space in the outer sheath into a first containing cavity, a second containing cavity, a third containing cavity, a fourth containing cavity and an inner heat dissipation cavity, wherein the inner heat dissipation cavity is the space inside the quadrangular star cylinder, the first containing cavity is defined by a first part of the outer sheath, a second part of the outer sheath, a first isolating strip and a second isolating strip, the second containing cavity is defined by a second part of the outer sheath, a third part of the outer sheath, a second isolating strip and a third isolating strip, the third containing cavity is defined by a third part of the outer sheath, a fourth part of the outer sheath, a third isolating strip and a fourth isolating strip, and the fourth containing cavity is defined by a fourth part of the outer sheath, a first part of the outer sheath, a fourth isolating strip and the first isolating strip; the reinforcement is located the interior heat dissipation intracavity, and four transmission conductor are located four holding cavitys respectively.

The internal heat dissipation cable is characterized in that the four-corner star cylinder is provided with a plurality of internal heat dissipation holes.

The internal heat radiation cable is characterized in that the reinforcing member is a star-shaped reinforcing member or a circular reinforcing member; the cross section of the star-shaped reinforcing piece is a quadrangle star; the cross section of the circular reinforcing member is circular.

The internal heat radiation cable is characterized in that the cross section of the outer edge of the conductor is a convex pentagon or a circle.

An internal heat dissipation cable is provided with a sheath component, four transmission leads and a reinforcement, wherein the transmission leads are composed of conductors; the protective sleeve is characterized by comprising an outer sheath and a partition part positioned in the outer sheath, wherein the outer sheath comprises an outer sheath first part, an outer sheath second part, an outer sheath third part and an outer sheath fourth part which are sequentially connected, and the outer sheath is in a rectangular ring column structure; the dividing component is composed of a first isolating strip, a second isolating strip, a third isolating strip and a fourth isolating strip, the first isolating strip extends out from the inner wall of the first part of the outer sheath and is bent at a fourth joint end at the position close to the other end, the second isolating strip extends out from the inner wall of the second part of the outer sheath and is bent at the first joint end at the position close to the other end, the third isolating strip extends out from the inner wall of the third part of the outer sheath and is bent at a second joint end at the position close to the other end, the fourth isolating strip extends out from the inner wall of the fourth part of the outer sheath and is bent at a third joint end at the position close to the other end, and the spliced and sealed parts of the first isolating strip, the second isolating strip, the third isolating strip and the fourth isolating strip form a quadrangular; the dividing component divides the space in the outer sheath into a first containing cavity, a second containing cavity, a third containing cavity, a fourth containing cavity and an inner heat dissipation cavity, wherein the inner heat dissipation cavity is the space inside the quadrangular star cylinder, the first containing cavity is defined by a first part of the outer sheath, a second part of the outer sheath, a first isolating strip and a second isolating strip, the second containing cavity is defined by a second part of the outer sheath, a third part of the outer sheath, a second isolating strip and a third isolating strip, the third containing cavity is defined by a third part of the outer sheath, a fourth part of the outer sheath, a third isolating strip and a fourth isolating strip, and the fourth containing cavity is defined by a fourth part of the outer sheath, a first part of the outer sheath, a fourth isolating strip and the first isolating strip; the reinforcement is located the interior heat dissipation intracavity, and four transmission conductor are located four holding cavitys respectively.

The internal heat dissipation cable is characterized in that the cross section of the outer edge of the insulating layer is a convex pentagon or a circle.

The internal heat dissipation cable is characterized in that the insulating layer is made of plastic.

The internal heat dissipation cable is characterized in that the sheath component is of an integrated structure.

The internal heat dissipation cable is characterized in that the material of the sheath component is plastic.

The internal heat dissipation cable is characterized in that the conductor is made of copper or aluminum or an alloy.

The internal heat dissipation cable is characterized in that the material of the reinforcing member is copper or iron or aluminum or alloy or steel or glass fiber reinforced plastic.

The utility model discloses following main beneficial effect has: high strength, high space utilization rate and better heat dissipation effect.

Drawings

FIG. 1 is a perspective, anatomical view of a section of a sheath component for use in 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 segment of the example 1.

Fig. 4 is a schematic perspective view of a dissected segment of the example 2.

Fig. 5 is a schematic perspective view of a dissected segment of the example 3.

Fig. 6 is a perspective view showing a length of an anatomical structure of a sheath member used in example 4.

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: 11-first part of outer sheath, 12-second part of outer sheath, 13-third part of outer sheath, 14-fourth part of outer sheath, 111-first isolating bar, 121-second isolating bar, 131-third isolating bar, 141-fourth isolating bar, 1112-first accommodating cavity, 1213-second accommodating cavity, 1314-third accommodating cavity, 1411-fourth accommodating cavity, 1234-inner radiating cavity, a-first joint end, B-second joint end, C-third joint end, D-fourth joint end, 21-conductor, 22-insulating layer, 3-star-shaped reinforcement, 4-circular reinforcement, 12034-inner radiating hole.

Detailed Description

Examples 1

Referring to fig. 1 to 3, an internal heat dissipation cable includes a sheath member, four power conductors, and a star-shaped reinforcement 3, where the power conductors include conductors 21 and an insulating layer 22 covering the conductors 21; the novel LED lamp is characterized in that the sheath component consists of an outer sheath and a partition component positioned in the outer sheath, the outer sheath consists of an outer sheath first part 11, an outer sheath second part 12, an outer sheath third part 13 and an outer sheath fourth part 14 which are sequentially connected, and the outer sheath is of a rectangular ring column structure; the dividing component is composed of a first isolating strip 111, a second isolating strip 121, a third isolating strip 131 and a fourth isolating strip 141, the first isolating strip 111 extends from the inner wall of the first part 11 of the outer sheath and is bent at a fourth joint end D at the near other end, the second isolating strip 121 extends from the inner wall of the second part 12 of the outer sheath and is bent at a first joint end A at the near other end, the third isolating strip 131 extends from the inner wall of the third part 13 of the outer sheath and is bent at a second joint end B at the near other end, the fourth isolating strip 141 extends from the inner wall of the fourth part 14 of the outer sheath and is bent at a third joint end C at the near other end, and the splicing and sealing parts of the first isolating strip 111, the second isolating strip 121, the third isolating strip 131 and the fourth isolating strip 141 form a quadrangular star-column shape; the dividing component divides the space in the outer sheath into a first containing cavity 1112, a second containing cavity 1213, a third containing cavity 1314, a fourth containing cavity 1411 and an inner heat dissipation cavity 1234, the inner heat dissipation cavity 1234 is a space inside the quadrangular star pillar, the first containing cavity 1112 is defined by a first part 11 of the outer sheath, a second part 12 of the outer sheath, a first isolating bar 111 and a second isolating bar 121, the second containing cavity 1213 is defined by a second part 12 of the outer sheath, a third part 13 of the outer sheath, a second isolating bar 121 and a third isolating bar 131, the third containing cavity 1314 is defined by a third part 13 of the outer sheath, a fourth part 14 of the outer sheath, a third isolating bar 131 and a fourth isolating bar 141, and the fourth containing cavity 1411 is defined by a fourth part 14 of the outer sheath, a first part 11 of the outer sheath, a fourth isolating bar 141 and a first isolating bar 111; star strength member 3 is located in inner heat dissipation chamber 1234, and four power conductors are located in the four receiving chambers, respectively.

An internal heat dissipation cable as described above, wherein the star strength members are omitted.

The internal heat dissipation cable is characterized in that the cross section of the star-shaped reinforcing piece is a four-corner star.

EXAMPLES example 2

Referring to fig. 4, and fig. 1 and 2, an internal heat dissipation cable includes a sheath member, four power transmission wires, and a circular reinforcement member 4, where the power transmission wires are composed of conductors 21 and an insulating layer 22 covering the conductors 21; the novel LED lamp is characterized in that the sheath component consists of an outer sheath and a partition component positioned in the outer sheath, the outer sheath consists of an outer sheath first part 11, an outer sheath second part 12, an outer sheath third part 13 and an outer sheath fourth part 14 which are sequentially connected, and the outer sheath is of a rectangular ring column structure; the dividing component is composed of a first isolating strip 111, a second isolating strip 121, a third isolating strip 131 and a fourth isolating strip 141, the first isolating strip 111 extends from the inner wall of the first part 11 of the outer sheath and is bent at a fourth joint end D at the near other end, the second isolating strip 121 extends from the inner wall of the second part 12 of the outer sheath and is bent at a first joint end A at the near other end, the third isolating strip 131 extends from the inner wall of the third part 13 of the outer sheath and is bent at a second joint end B at the near other end, the fourth isolating strip 141 extends from the inner wall of the fourth part 14 of the outer sheath and is bent at a third joint end C at the near other end, and the splicing and sealing parts of the first isolating strip 111, the second isolating strip 121, the third isolating strip 131 and the fourth isolating strip 141 form a quadrangular star-column shape; the dividing component divides the space in the outer sheath into a first containing cavity 1112, a second containing cavity 1213, a third containing cavity 1314, a fourth containing cavity 1411 and an inner heat dissipation cavity 1234, the inner heat dissipation cavity 1234 is a space inside the quadrangular star pillar, the first containing cavity 1112 is defined by a first part 11 of the outer sheath, a second part 12 of the outer sheath, a first isolating bar 111 and a second isolating bar 121, the second containing cavity 1213 is defined by a second part 12 of the outer sheath, a third part 13 of the outer sheath, a second isolating bar 121 and a third isolating bar 131, the third containing cavity 1314 is defined by a third part 13 of the outer sheath, a fourth part 14 of the outer sheath, a third isolating bar 131 and a fourth isolating bar 141, and the fourth containing cavity 1411 is defined by a fourth part 14 of the outer sheath, a first part 11 of the outer sheath, a fourth isolating bar 141 and a first isolating bar 111; circular reinforcement 4 is located interior heat dissipation chamber 1234, and four power conductors are located four holding chambeies respectively.

The internal heat dissipation cable according to the embodiment 1 or 2 is characterized in that the cross section of the outer edge of the insulating layer is a convex pentagon.

The internal heat dissipation cable is characterized in that the circular reinforcing piece can be omitted.

EXAMPLE 3

Referring to fig. 5, and fig. 1 and 2, an internal heat dissipation cable includes a sheath member, four power transmission wires, and a circular reinforcement 4, where the power transmission wires are composed of conductors 21 and an insulating layer 22 covering the conductors 21; the novel LED lamp is characterized in that the sheath component consists of an outer sheath and a partition component positioned in the outer sheath, the outer sheath consists of an outer sheath first part 11, an outer sheath second part 12, an outer sheath third part 13 and an outer sheath fourth part 14 which are sequentially connected, and the outer sheath is of a rectangular ring column structure; the dividing component is composed of a first isolating strip 111, a second isolating strip 121, a third isolating strip 131 and a fourth isolating strip 141, the first isolating strip 111 extends from the inner wall of the first part 11 of the outer sheath and is bent at a fourth joint end D at the near other end, the second isolating strip 121 extends from the inner wall of the second part 12 of the outer sheath and is bent at a first joint end A at the near other end, the third isolating strip 131 extends from the inner wall of the third part 13 of the outer sheath and is bent at a second joint end B at the near other end, the fourth isolating strip 141 extends from the inner wall of the fourth part 14 of the outer sheath and is bent at a third joint end C at the near other end, and the splicing and sealing parts of the first isolating strip 111, the second isolating strip 121, the third isolating strip 131 and the fourth isolating strip 141 form a quadrangular star-column shape; the dividing component divides the space in the outer sheath into a first containing cavity 1112, a second containing cavity 1213, a third containing cavity 1314, a fourth containing cavity 1411 and an inner heat dissipation cavity 1234, the inner heat dissipation cavity 1234 is a space inside the quadrangular star pillar, the first containing cavity 1112 is defined by a first part 11 of the outer sheath, a second part 12 of the outer sheath, a first isolating bar 111 and a second isolating bar 121, the second containing cavity 1213 is defined by a second part 12 of the outer sheath, a third part 13 of the outer sheath, a second isolating bar 121 and a third isolating bar 131, the third containing cavity 1314 is defined by a third part 13 of the outer sheath, a fourth part 14 of the outer sheath, a third isolating bar 131 and a fourth isolating bar 141, and the fourth containing cavity 1411 is defined by a fourth part 14 of the outer sheath, a first part 11 of the outer sheath, a fourth isolating bar 141 and a first isolating bar 111; the circular reinforcement 4 is located in the inner heat dissipation cavity 1234, and the four power conductors are located in the four accommodation cavities, respectively; the cross section of the outer edge of the insulating layer is circular.

EXAMPLE 4

Referring to fig. 6 and fig. 1 and 2, an internal heat dissipation cable is substantially the same as embodiment 1 or embodiment 2, except that: the four-pointed star cylinder has a plurality of internal heat dissipation holes 12034.

An internal heat dissipation cable as described in any of the above embodiments, wherein the insulating layer is omitted.

Further, an internal heat dissipation cable as described in any one of the above embodiments, wherein the cross section of the outer edge of the conductor is a convex pentagon or a circle when the insulating layer is omitted.

An internal heat dissipation cable as in any one of the above embodiments, wherein the conductor is formed of a material having a reduced dielectric constant

An internal heat dissipation cable as described in any one of the above embodiments, wherein the sheath member is of a unitary structure.

An internal heat dissipating cable as claimed in any one of the above embodiments, wherein the material of the sheath member is plastic.

An internal heat dissipation cable as described in any one of the above embodiments, wherein the material of the insulating layer is plastic.

An internal heat dissipation cable as described in any one of the above embodiments, wherein the conductor is made of copper or aluminum or an alloy.

An internal heat dissipation cable as recited in any of the above embodiments, wherein the star reinforcement is made of copper or iron or aluminum or an alloy or steel or fiberglass reinforced plastic.

An internal heat dissipation cable as described in any one of the above embodiments, wherein the material of the round reinforcing member is copper or iron or aluminum or alloy or steel or glass fiber reinforced plastic.

In the present application, the presence of the star-shaped reinforcement or the circular reinforcement increases the tensile strength or mechanical strength of the cable, and at the same time, if it is a conductor, it can transfer heat quickly and efficiently, and at the same time, it can be used as a ground wire.

In the application, when the star-shaped reinforcing element or the circular reinforcing element does not exist, heat transmission can be realized in the inner heat dissipation cavity, and even cold air or a cooling medium is input to cool the cable.

In this application, when star reinforcement or circular reinforcement do not exist, have a plurality of interior louvres on the four corners star cylinder, the louvre in sending into in the mode of the accessible convection current that generates heat in four holding chambeies like this, has improved the radiating effect.

Four transmission conductors are arranged in the device, and the device can be used as two phase lines and can also be used as a three-phase four-wire system line.

The outer fringe cross section is the rectangle structure in this application for it more is suitable for the cable duct of cuboid structure, makes the utilization ratio in space higher.

In this application, two surfaces of transmission conductor paste with the oversheath mutually, and other surfaces of transmission conductor paste with the partition member surface mutually, all are that the area touches the heat dissipation, compare the line heat dissipation among the prior art, and the radiating effect greatly promotes.

In the application, when the insulating layer does not exist, the conductor directly radiates heat, so that the heat radiation effect is increased, and materials are saved; the two surfaces of the insulating layer or the conductor are in direct surface contact with the outer sheath, and the other three surfaces of the insulating layer or the conductor are in surface contact with the central star-shaped body, so that the heat dissipation area is increased, and the heat dissipation effect is better; the square structure is more suitable for being placed in a cable trough, space waste is less, and space utilization rate is higher; this application make full use of space, when the conductor area is different, can not increase holistic area through reasonable design, even the star body forms irregular structure, be promptly not the positive four corners star, cut apart the part relative rotation can.

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 internal heat radiation cable is provided with a sheath component, four transmission leads and a reinforcement, wherein the transmission leads are composed of conductors (21) and insulating layers (22) coated outside the conductors (21); the novel LED lamp is characterized in that the sheath component consists of an outer sheath and a partition component positioned in the outer sheath, the outer sheath consists of an outer sheath first part (11), an outer sheath second part (12), an outer sheath third part (13) and an outer sheath fourth part (14) which are sequentially connected, and the outer sheath is of a rectangular ring column structure; the dividing component is composed of a first isolating strip (111), a second isolating strip (121), a third isolating strip (131) and a fourth isolating strip (141), the first isolating strip (111) extends from the inner wall of the first part (11) of the outer sheath and is bent at a fourth joint end (D) at the position close to the other end, the second isolating strip (121) extends from the inner wall of the second part (12) of the outer sheath and is bent at the first joint end (A) at the position close to the other end, the third isolating strip (131) extends from the inner wall of the third part (13) of the outer sheath and is bent at a second joint end (B) at the position close to the other end, the fourth isolating strip (141) extends from the inner wall of the fourth part (14) and is bent at a third joint end (C) at the position close to the other end, the closed parts of the first isolating strip (111), the second isolating strip (121), the third isolating strip (131) and the fourth isolating strip (141) are spliced to form a quadrangular star-shaped cylinder; the dividing component divides the space in the outer sheath into a first accommodating cavity (1112), a second accommodating cavity (1213), a third accommodating cavity (1314), a fourth accommodating cavity (1411) and an inner heat dissipation cavity (1234), the inner heat dissipation cavity (1234) is the space inside the four-corner star-shaped cylinder, the first accommodating cavity (1112) is defined by a first part (11) of the outer sheath, a second part (12) of the outer sheath, a first isolating strip (111) and a second isolating strip (121), the second accommodating cavity (1213) is defined by a second part (12) of the outer sheath, a third part (13) of the outer sheath, a second isolating strip (121) and a third isolating strip (131), the third accommodating cavity (1314) is defined by a third part (13) of the outer sheath, a fourth part (14) of the outer sheath, a third isolating strip (131) and a fourth isolating strip (141), and the fourth accommodating cavity (1411) is defined by a fourth part (14) of the outer sheath, the first part (11) and the outer sheath, The fourth isolating strip (141) and the first isolating strip (111) are encircled; the reinforcement is located in interior heat dissipation chamber (1234), and four transmission conductors are located four holding intracavity respectively.

2. The cable of claim 1, wherein the quadrilateral star-shaped body has a plurality of internal heat dissipation holes.

3. The internal heat dissipation cable of claim 1, wherein the strength members are star-shaped strength members or round strength members; the cross section of the star-shaped reinforcing piece is a quadrangle star; the cross section of the circular reinforcing member is circular.

4. The cable of claim 1, wherein the outer edge of the conductor has a cross-section of a convex pentagon or a circle.

5. An internal heat dissipation cable has a sheath member, four power transmission conductors, and a reinforcement, the power transmission conductors being formed of conductors (21); the novel LED lamp is characterized in that the sheath component consists of an outer sheath and a partition component positioned in the outer sheath, the outer sheath consists of an outer sheath first part (11), an outer sheath second part (12), an outer sheath third part (13) and an outer sheath fourth part (14) which are sequentially connected, and the outer sheath is of a rectangular ring column structure; the dividing component is composed of a first isolating strip (111), a second isolating strip (121), a third isolating strip (131) and a fourth isolating strip (141), the first isolating strip (111) extends from the inner wall of the first part (11) of the outer sheath and is bent at a fourth joint end (D) at the position close to the other end, the second isolating strip (121) extends from the inner wall of the second part (12) of the outer sheath and is bent at the first joint end (A) at the position close to the other end, the third isolating strip (131) extends from the inner wall of the third part (13) of the outer sheath and is bent at a second joint end (B) at the position close to the other end, the fourth isolating strip (141) extends from the inner wall of the fourth part (14) and is bent at a third joint end (C) at the position close to the other end, the closed parts of the first isolating strip (111), the second isolating strip (121), the third isolating strip (131) and the fourth isolating strip (141) are spliced to form a quadrangular star-shaped cylinder; the dividing component divides the space in the outer sheath into a first accommodating cavity (1112), a second accommodating cavity (1213), a third accommodating cavity (1314), a fourth accommodating cavity (1411) and an inner heat dissipation cavity (1234), the inner heat dissipation cavity (1234) is the space inside the four-corner star-shaped cylinder, the first accommodating cavity (1112) is defined by a first part (11) of the outer sheath, a second part (12) of the outer sheath, a first isolating strip (111) and a second isolating strip (121), the second accommodating cavity (1213) is defined by a second part (12) of the outer sheath, a third part (13) of the outer sheath, a second isolating strip (121) and a third isolating strip (131), the third accommodating cavity (1314) is defined by a third part (13) of the outer sheath, a fourth part (14) of the outer sheath, a third isolating strip (131) and a fourth isolating strip (141), and the fourth accommodating cavity (1411) is defined by a fourth part (14) of the outer sheath, the first part (11) and the outer sheath, The fourth isolating strip (141) and the first isolating strip (111) are encircled; the reinforcement is located in interior heat dissipation chamber (1234), and four transmission conductors are located four holding intracavity respectively.

6. The internal heat dissipation cable of claim 5, wherein the four-pointed star cylinder has a plurality of internal heat dissipation holes.

7. The internal heat dissipation cable of claim 5, wherein the strength members are star-shaped strength members or round strength members; the cross section of the star-shaped reinforcing piece is a quadrangle star; the cross section of the circular reinforcing member is circular.

8. An internal heat dissipation cable according to claim 5, wherein the outer edge of the insulating layer has a cross section of a convex pentagon or a circle.

9. An internal heat dissipation cable according to claim 5, wherein the insulating layer is made of plastic.

10. An internal heat dissipation cable according to claim 5, wherein the sheath member is of unitary construction.