Heat dissipation opening and closing type power cable

Abstract

The invention discloses a heat dissipation opening and closing type power cable which comprises a cable insulating layer, an external sleeving layer, a cable shell and a heat dissipation opening and closing assembly. The dual-operation mode of heat dissipation and closed protection can be achieved, adjustment is conducted through different temperatures, flexible heat dissipation can be conducted at high temperature in summer, closed protection can be conducted at low temperature in winter, and it is avoided that rain and snow enter and freeze the interior; the adjusting ring rotates and drives the multiple movable battens to move in the heat dissipation cavity in the radial direction, when the adjusting ring rotates and enables the inner side of the adjusting ring to abut against the multiple movable battens to move inwards in the radial direction, the opening and closing blocks can be disengaged from the opening and closing holes, and heat dissipation is conducted through the heat dissipation holes, the heat dissipation cavity and the opening and closing holes; when the adjusting ring rotates and enables the closed spring column to eject the movable batten to move towards the outer side, the multiple opening and closing blocks are inserted and closed in the opening and closing holes one by one, so that closed protection is achieved, and flexible adjustment can be conducted.

Description

Technical Field

[0001] The invention belongs to the field of power cable manufacturing for transmitting electric energy, and in particular relates to a heat dissipation on-off type power cable. Background Art

[0002] Power cable is a cable product used to transmit and distribute high-power electric energy in the main line of the power system. It is used in a wide range of occasions and its application range is getting wider and wider. The types of cables are also increasing. The lead-out lines of urban power grids and power stations are especially used in important places such as high-rise buildings, subways, tunnels, power plants and nuclear power plants. For this reason, the research and development and manufacturing of cables are becoming more and more in-depth. In some places where existing cables are used, in order to prevent the inside from being damaged and to improve the protection performance, it is generally necessary to set an outer shell on the outside of the cable for protection. However, this structure greatly reduces the heat dissipation performance of the cable when it is used in an environment with high temperature in summer, which will cause the cable temperature to be too high and damaged. At the same time, when the outside temperature is low in winter, rain and snow entering the cable will cause the inside of the cable to freeze, making the outer layer of the cable hard and making the cable easy to damage. Therefore, it is necessary to increase the heat dissipation performance when the ambient temperature is high, and to close the cable for protection when the ambient temperature is low. Therefore, it is necessary to upgrade the cable structure. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the present invention solves the problem of providing a heat dissipation on-off type power cable which can flexibly dissipate heat and provide closed protection.

[0004] To solve the above problems, the technical solution adopted by the present invention is as follows: A heat dissipation opening and closing type power cable, comprising a cable insulation layer, an external sleeve layer, a cable casing, and a heat dissipation opening and closing component; a cable core is arranged inside the cable insulation layer; the outer sides of the cable insulation layer are connected to the external sleeve layer; a cable casing is installed on the outer side of the external sleeve layer; a heat dissipation cavity is arranged around the inner side of the cable casing and around the outer side of the external sleeve layer; a plurality of through heat dissipation holes are evenly arranged around the external sleeve layer, and the heat dissipation holes are connected to the heat dissipation cavity; the heat dissipation opening and closing component is installed on the cable casing; a plurality of opening and closing holes are evenly arranged around the cable casing; the heat dissipation opening and closing component comprises a movable slat, an opening and closing block, a closed spring column, and an adjusting ring; the heat dissipation cavity is arranged around A plurality of movable slats are evenly installed; a plurality of closed spring columns are evenly installed around the inner sides of both ends of the cable housing; the inner sides of both ends of the movable slats are pressed outward by the closed spring columns; a plurality of opening and closing blocks are evenly installed on the outer sides of the movable slats; the opening and closing blocks and the opening and closing holes correspond one to one; an adjusting ring is respectively installed at both ends of the cable housing, and the inner sides of the adjusting rings are abutted against the outer sides of the plurality of movable slats; the adjusting rings rotate and drive the plurality of movable slats to move radially in the heat dissipation cavity, the inner side of the adjusting rings presses the plurality of movable slats to move radially inward and causes the opening and closing blocks to detach from the opening and closing holes, or the closed spring columns press the movable slats outward and cause the plurality of opening and closing blocks to be plugged in and closed in the opening and closing holes one by one.

[0005] Furthermore, a plurality of radial slots are evenly arranged on the inner sides around the two ends of the cable housing; the two ends of the movable slats are slidably engaged with the radial slots.

[0006] Furthermore, the outer side of the movable slat is an arc-shaped structure protruding outward; and the inner side of the adjusting ring is a concave-convex annular surface structure.

[0007] Furthermore, an external power ring is rotatably installed at both ends of the cable housing, and connecting rods are respectively provided on the upper and lower sides of the inner side of the external power ring. Arc-shaped openings are respectively opened at the upper and lower ends of the cable housing, and the connecting rods pass through the arc-shaped openings of the cable housing and are connected to the outer side of the adjustment ring.

[0008] Furthermore, the inner side of the external power ring is provided with limit rods at the upper and lower sides, and the limit rods are slidably connected to the outer side of the end of the cable housing in an arc-shaped trajectory.

[0009] Furthermore, a locking ring body is screwed on the threaded rod; the locking ring body is rotatably fastened to the outer end surface of the cable housing.

[0010] Furthermore, the outer sides of the movable slats are connected to the opening and closing blocks through a plurality of connecting columns.

[0011] Furthermore, a plurality of support plates are evenly installed around the inner sides of both ends of the cable housing; the outer sides of the support plates are respectively connected to a closed spring column; and the two ends of the closed spring column are elastically pressed between the support plate and the movable strip.

[0012] Furthermore, the opening and closing hole and the opening and closing block both present a conical structure with a small outer end and a large inner end.

[0013] Furthermore, a plurality of threaded holes are provided around the end of the outer sleeve layer; ring sleeves are provided around the inner sides of both ends of the cable housing; and the ring sleeves are penetrated by screws and connected to the threaded holes of the outer sleeve layer.

[0014] The beneficial effects of the present invention are as follows: The present invention can realize a dual operation mode of heat dissipation and closed protection, and can be adjusted through different temperatures. When the temperature is high in summer, it can flexibly dissipate heat, and when the temperature is low in winter, it can provide closed protection to prevent rain and snow from entering and causing internal icing. The present invention rotates an adjusting ring and drives a plurality of movable slats to move radially in the heat dissipation cavity. When the adjusting ring rotates and its inner side presses the plurality of movable slats to move radially inward, the opening and closing blocks will be separated from the opening and closing holes, and heat will be dissipated through the heat dissipation holes, the heat dissipation cavity, and the opening and closing holes. When the adjusting ring rotates and the closed spring column presses the movable slats outward to move, the plurality of opening and closing blocks will be plugged in and closed in the opening and closing holes one by one, thereby realizing closed protection, and flexible adjustment can be performed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention.

[0016] Figure 2 It is a structural schematic diagram of the opening and closing blocks of the present invention being plugged in and closed in the opening and closing holes one by one.

[0017] Figure 3 It is a schematic diagram of the structure in which the opening and closing block of the present invention is separated from the opening and closing hole.

[0018] Figure 4 For the present invention Figure 3 Schematic diagram of the local enlarged structure.

[0019] Figure 5 It is a schematic diagram of the cross-sectional structure of the adjustment ring of the present invention.

[0020] Figure 6 For the present invention Figure 5 Schematic diagram of the structure after the middle adjustment ring is rotated. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0022] like Figures 1 to 6As shown, a heat dissipation opening and closing type power cable comprises a cable insulation layer 1, an external sleeve layer 2, a cable casing 3, and a heat dissipation opening and closing component 4; a cable inner core is arranged inside the cable insulation layer 1; the outer sides of the cable insulation layer 1 are connected to the external sleeve layer 2; the cable casing 3 is installed on the outer side of the external sleeve layer 2; a heat dissipation cavity 31 is arranged around the inner side of the cable casing 3 and around the outer side of the external sleeve layer 2; a plurality of through heat dissipation holes 21 are evenly arranged around the external sleeve layer 2, and the heat dissipation holes 21 are connected to the heat dissipation cavity 31; the heat dissipation opening and closing component 4 is installed on the cable casing 3; a plurality of opening and closing holes 32 are evenly arranged around the cable casing 3; the heat dissipation opening and closing component 4 comprises a movable slat 41, an opening and closing block 42, a closed spring column 43, and an adjusting ring 44; A plurality of movable slats 41 are installed; a plurality of closed spring columns 43 are evenly installed around the inner sides of both ends of the cable housing 3; the inner sides of both ends of the movable slats 41 are pressed outwardly by the closed spring columns 43; a plurality of opening and closing blocks 42 are evenly installed on the outer sides of the movable slats 41; the opening and closing blocks 42 and the opening and closing holes 32 correspond to each other one by one; an adjusting ring 44 is installed at each end of the cable housing 3, and the inner sides of the adjusting ring 44 are abutted against the outer sides of the plurality of movable slats 41; the adjusting ring 44 rotates and drives the plurality of movable slats 41 to move radially in the heat dissipation cavity 31, and the inner side of the adjusting ring 44 presses the plurality of movable slats 41 to move radially inwardly and causes the opening and closing blocks 42 to disengage from the opening and closing holes 32, or the closed spring columns 43 press the movable slats 41 outwardly and cause the plurality of opening and closing blocks 42 to be plugged in and closed in the opening and closing holes 32 one by one.

[0023] like Figures 1 to 6 As shown, in order to improve the moving stability of the moving slat 41 , further, a plurality of radial slots 33 are evenly opened on the inner sides around both ends of the cable housing 3 ; both ends of the moving slat 41 are slidably engaged in the radial slots 33 .

[0024] like Figures 1 to 6 As shown, the rotation of the adjusting ring 44 can drive the multiple moving slats 41 to move radially. Furthermore, the outer side of the moving slats 41 is an arc-shaped structure protruding outward; the inner side of the adjusting ring 44 is a concave-convex annular surface structure.

[0025] like Figures 1 to 6As shown, in order for the external power ring 5 to be able to control the rotation of the adjustment ring 44, further, an external power ring 5 is rotatably installed at both ends of the cable housing 3, and a connecting rod 51 is respectively provided on the inner side of the external power ring 5. The two ends of the cable housing 3 are respectively provided with arc openings 34, and the connecting rod 51 passes through the arc opening 34 of the cable housing 3 and is connected to the outer side of the adjustment ring 44. In order to improve the rotation stability of the external power ring 5, further, a limit rod 52 is provided on the inner side of the external power ring 5, and the limit rod 52 is slidably connected to the outer side of the end of the cable housing 3 in an arc track. In order to improve the locking performance of the external power ring 5 and the connecting rod 51, further, a locking ring body 53 is screwed on the connecting rod 51; the locking ring body 53 is rotatably fastened to the outer end surface of the cable housing 3. Further, the outer side of the movable slat 41 is connected to the opening and closing block 42 through a plurality of connecting columns 411.

[0026] like Figures 1 to 6 As shown, in order to facilitate the installation of the closed spring column 43, further, multiple support plates 35 are evenly installed around the inner sides of both ends of the cable housing 3; the outer sides of the support plates 35 are respectively connected to a closed spring column 43; the two ends of the closed spring column 43 are elastically pressed between the support plates 35 and the movable strip 41.

[0027] like Figures 1 to 6 As shown, in order to facilitate closing, further, the opening and closing hole 32 and the opening and closing block 42 are both in a conical structure with a small outer end and a large inner end.

[0028] like Figures 1 to 6 As shown, the cable casing 3 and the external sleeve layer 2 are connected. Furthermore, a plurality of threaded holes 22 are provided around the end of the external sleeve layer 2; ring sleeves 36 are provided around the inner sides of both ends of the cable casing 3; and the ring sleeves 36 are penetrated by screws 361 and connected to the threaded holes 22 of the external sleeve layer 2.

[0029] The present invention can realize a dual operation mode of heat dissipation and closed protection, and can be adjusted through different temperatures. When the temperature is high in summer, it can flexibly dissipate heat, and when the temperature is low in winter, it can be closed and protected to prevent rain and snow from entering and causing internal ice. The present invention rotates the adjusting ring 44 and drives the multiple movable slats 41 to move radially in the heat dissipation cavity 31. When the adjusting ring 44 rotates and its inner side presses the multiple movable slats 41 to move radially inward, the opening and closing blocks 42 will be separated from the opening and closing holes 32, and heat will be dissipated through the heat dissipation holes 21, the heat dissipation cavity 31, and the opening and closing holes 32. When the adjusting ring 44 rotates and the closed spring column 43 presses the movable slats 41 outward to move, the multiple opening and closing blocks 42 are plugged and closed in the opening and closing holes 32 one by one, thereby realizing closed protection and preventing internal rain and snow from entering and freezing, causing cracks and damage inside. In this way, flexible adjustment can be performed.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat dissipation on-off type power cable, characterized in that: The invention comprises a cable insulation layer, an external sleeve layer, a cable casing, and a heat dissipation opening and closing component; a cable core is arranged inside the cable insulation layer; the outer sides of the cable insulation layer are connected to the external sleeve layer; a cable casing is installed on the outer side of the external sleeve layer; a heat dissipation cavity is arranged around the inner side of the cable casing and around the outer side of the external sleeve layer; a plurality of through heat dissipation holes are evenly arranged around the external sleeve layer, and the heat dissipation holes are connected to the heat dissipation cavity; the heat dissipation opening and closing component is installed on the cable casing; a plurality of opening and closing holes are evenly arranged around the cable casing; the heat dissipation opening and closing component comprises a movable slat, an opening and closing block, a closed spring column, and an adjusting ring; a plurality of heat dissipation holes are evenly arranged around the heat dissipation cavity Movable slats; multiple closed spring columns are evenly installed around the inner sides of both ends of the cable housing; the inner sides of both ends of the movable slats are pressed outward by the closed spring columns; multiple opening and closing blocks are evenly installed on the outer sides of the movable slats; the opening and closing blocks and the opening and closing holes correspond to each other one by one; an adjusting ring is respectively installed at both ends of the cable housing, and the inner sides of the adjusting rings are abutted against the outer sides of multiple movable slats; the adjusting rings rotate and drive the multiple movable slats to move radially in the heat dissipation cavity, and the inner side of the adjusting ring presses the multiple movable slats to move radially inward and causes the opening and closing blocks to detach from the opening and closing holes, or the closed spring columns press the movable slats outward and cause the multiple opening and closing blocks to be plugged in and closed in the opening and closing holes one by one.

2. The heat dissipation on-off type power cable according to claim 1, characterized in that: A plurality of radial slots are evenly arranged on the inner sides of the two ends of the cable housing; the two ends of the movable strip are slidably engaged with the radial slots.

3. The heat dissipation on-off type power cable according to claim 1, characterized in that: The outer side of the movable slat is in an outwardly convex arc structure; the inner side of the adjusting ring is in a concave-convex annular surface structure.

4. The heat dissipation on-off type power cable according to claim 1, characterized in that: An external power ring is rotatably installed at both ends of the cable housing, and connecting rods are respectively provided on the upper and lower sides of the inner side of the external power ring. Arc openings are respectively opened at the upper and lower ends of the cable housing, and the connecting rods pass through the arc openings of the cable housing and are connected to the outer side of the adjustment ring.

5. The heat dissipation on-off type power cable according to claim 4, characterized in that: Limit rods are arranged at the upper and lower sides of the inner side of the external power ring, and the limit rods are slidably connected to the outer side of the end of the cable housing in an arc track.

6. The heat dissipation on-off type power cable according to claim 4, characterized in that: A locking ring body is screwed on the threaded rod; the locking ring body is rotatably fastened to the outer end surface of the cable housing.

7. The heat dissipation on-off type power cable according to claim 1, characterized in that: The outer sides of the movable slats are respectively connected to the opening and closing blocks through a plurality of connecting columns.

8. The heat dissipation on-off type power cable according to claim 1, characterized in that: A plurality of support plates are evenly installed around the inner sides of both ends of the cable housing; the outer sides of the support plates are respectively connected to a closed spring column; and the two ends of the closed spring column are elastically pressed between the support plate and the movable strip.

9. The heat dissipation on-off type power cable according to claim 1, characterized in that: The opening and closing hole and the opening and closing block are both in a conical structure with a small outer end and a large inner end.

10. The heat dissipation on-off type power cable according to claim 1, characterized in that: A plurality of threaded holes are arranged around the end of the outer sleeve layer; ring sleeves are arranged around the inner sides of the two ends of the cable shell; the ring sleeves are penetrated by screws and connected to the threaded holes of the outer sleeve layer.

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