A heat dissipation opening and closing type power cable

Abstract

The present invention discloses a heat dissipation opening and closing type power cable, comprising a cable insulation layer, an outer sleeve layer, a cable casing, and a heat dissipation opening and closing component; the present invention can realize a dual operation mode of heat dissipation and closed protection, and can be adjusted through different temperatures. When it is hot in summer, it can flexibly dissipate heat; when it is cold 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 causes its inner side to press the plurality of movable slats to move radially inward, the opening and closing block will be separated from the opening and closing hole, and heat will be dissipated through the heat dissipation hole, the heat dissipation cavity, and the opening and closing hole. When the adjusting ring rotates and causes the closed spring column to press the movable slats outward, the plurality of opening and closing blocks will be plugged in and closed in the opening and closing hole one by one, thereby realizing closed protection, and thus flexible adjustment can be performed.

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 opening and closing type power cable. Background Art

[0002] Power cable is a cable product used to transmit and distribute high-power electrical energy in the main lines 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. It is used in urban power grids, power station lead-out lines, especially 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 their internal parts from being damaged and to improve their protective 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 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 be damaged. Therefore, it is necessary to increase the heat dissipation performance when the ambient temperature is high, and to seal and protect the cable when the ambient temperature is low. For this reason, the cable structure needs to be upgraded and renovated. 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-dissipating open-close type power cable that can flexibly dissipate heat and provide closed protection.

[0004] In order to solve the above problems, the technical solutions adopted by the present invention are as follows:

[0005] A heat dissipation opening and closing type power cable, comprising a cable insulation layer, an outer sheath layer, a cable casing, and a heat dissipation opening and closing component; a cable core is provided inside the cable insulation layer; the outer sides of the cable insulation layer are connected to the outer sheath layer; a cable casing is installed on the outer side of the outer sheath layer; a heat dissipation cavity is provided around the inner side of the cable casing and around the outer side of the outer sheath layer; a plurality of through heat dissipation holes are evenly arranged around the outer sheath, 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 provided 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 in contact with the outer sides of the plurality of movable slats; the adjusting rings rotate and drive the plurality of movable slats to move radially inward in the heat dissipation cavity, and 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.

[0006] Furthermore, a plurality of radial slots are evenly arranged on the inner sides around both ends of the cable housing; and both ends of the movable strip are slidably engaged with the radial slots.

[0007] Furthermore, the outer side of the movable slat is an outwardly convex arc structure; the inner side of the adjustment ring is a concave-convex annular surface structure.

[0008] 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.

[0009] Furthermore, limit rods are provided on the upper and lower sides of the inner side of the external power ring, and the limit rods are slidably engaged with the outer side of the end of the cable housing in an arc-shaped trajectory.

[0010] Furthermore, a locking ring is screwed onto the connecting rod; the locking ring is rotatably fastened to the outer end surface of the cable housing.

[0011] Furthermore, the outer sides of the movable slats are connected to the opening and closing blocks through a plurality of connecting columns.

[0012] 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 plates and the movable strips.

[0013] Furthermore, the opening and closing hole and the opening and closing block both have a conical structure with a small outer end and a large inner end.

[0014] 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 shell; the ring sleeves are penetrated by screws and connected to the threaded holes of the outer sleeve layer.

[0015] The beneficial effects of the present invention are as follows:

[0016] The present invention can realize a dual operation mode of heat dissipation and closed protection, and can be adjusted through different temperatures. When it is hot in summer, it can flexibly dissipate heat, and when it is cold in winter, it can provide closed protection to prevent rain and snow from entering and causing internal ice. The present invention rotates the adjustment ring and drives the multiple movable slats to move radially in the heat dissipation cavity. When the adjustment ring rotates and its inner side presses the multiple 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 adjustment ring rotates and the closed spring column presses the movable slats outward, the multiple opening and closing blocks are 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

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 This 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.

[0019] Figure 3 This is a structural schematic diagram of the opening and closing block of the present invention being separated from the opening and closing hole.

[0020] Figure 4 For the present invention Figure 3 Schematic diagram of the local enlarged structure.

[0021] Figure 5 It is a schematic diagram of the cross-sectional structure of the adjustment ring of the present invention.

[0022] Figure 6 For the present invention Figure 5 Schematic diagram of the structure after the middle adjustment ring is rotated. DETAILED DESCRIPTION

[0023] The present invention will be described in further detail below with reference to the accompanying drawings.

[0024] like Figures 1 to 6 As shown, a heat dissipation opening and closing type power cable comprises a cable insulation layer 1, an outer sheath layer 2, a cable casing 3, and a heat dissipation opening and closing component 4; a cable inner core is provided inside the cable insulation layer 1; the outer sides of the cable insulation layer 1 are connected to the outer sheath layer 2; a cable casing 3 is installed on the outer side of the outer sheath layer 2; a heat dissipation cavity 31 is provided around the inner side of the cable casing 3 and around the outer side of the outer sheath layer 2; a plurality of through heat dissipation holes 21 are evenly arranged around the outer sheath 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; Multiple movable slats 41 are installed; multiple 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 outward by the closed spring columns 43; multiple opening and closing blocks 42 are evenly installed on the outer side of the movable slats 41; the opening and closing blocks 42 and the opening and closing holes 32 correspond one to 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 in contact with the outer sides of the multiple movable slats 41; the adjusting ring 44 rotates and drives the multiple movable slats 41 to move radially in the heat dissipation cavity 31, and the inner side of the adjusting ring 44 presses the multiple movable slats 41 radially inward 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 outward and cause the multiple opening and closing blocks 42 to be plugged in and closed in the opening and closing holes 32 one by one.

[0025] like Figures 1 to 6 As shown, in order to improve the movement stability of the movable strip 41, a plurality of radial slots 33 are evenly opened on the inner sides around both ends of the cable housing 3; the two ends of the movable strip 41 are slidably engaged with the radial slots 33.

[0026] like Figures 1 to 6 As shown, the rotation of the adjusting ring 44 can drive the multiple movable slats 41 to move radially. Furthermore, the outer side of the movable slats 41 is an outwardly convex arc structure; the inner side of the adjusting ring 44 is a concave-convex annular surface structure.

[0027] like Figures 1 to 6As shown, to allow the external power ring 5 to control the rotation of the adjustment ring 44, an external power ring 5 is rotatably mounted on each end of the cable housing 3. Connecting rods 51 are provided on the upper and lower inner sides of the external power ring 5. Arc-shaped openings 34 are provided at the upper and lower ends of the cable housing 3. The connecting rods 51 pass through the arc-shaped openings 34 of the cable housing 3 and connect to the outer side of the adjustment ring 44. To enhance the rotational stability of the external power ring 5, stop rods 52 are provided on the upper and lower inner sides of the external power ring 5. The stop rods 52 slide along an arc-shaped trajectory and engage the outer ends of the cable housing 3. To enhance the locking performance between the external power ring 5 and the connecting rod 51, a locking ring 53 is threadedly connected to the connecting rod 51; the locking ring 53 is rotatably secured to the outer end surface of the cable housing 3. Furthermore, the outer sides of the movable slats 41 are connected to the opening and closing block 42 via multiple connecting posts 411.

[0028] 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.

[0029] like Figures 1 to 6 As shown, in order to facilitate closing, the opening and closing hole 32 and the opening and closing block 42 are both tapered structures with a small outer end and a large inner end.

[0030] like Figures 1 to 6 As shown, the cable jacket 3 and the outer sleeve layer 2 are connected. Furthermore, a plurality of threaded holes 22 are provided around the end of the outer sleeve layer 2; ring sleeves 36 are provided around the inner sides of both ends of the cable jacket 3; the ring sleeves 36 are penetrated by screws 361 and connected to the threaded holes 22 of the outer sleeve layer 2.

[0031] The present invention can realize a dual operation mode of heat dissipation and closed protection, and can be adjusted through different temperatures. When it is hot in summer, it can flexibly dissipate heat, and when it is cold 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 radially inward, the opening and closing blocks 42 will be separated from the opening and closing holes 32, so that heat is 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 closing spring column 43 presses the movable slats 41 outward, the multiple opening and closing blocks 42 are plugged into 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.

[0032] 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 principles of the present invention should be included in the scope of protection 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 outer 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 outer sleeve layer; a cable casing is installed on the outer side of the outer sleeve layer; a heat dissipation cavity is arranged around the inner side of the cable casing and around the outer side of the outer sleeve layer; a plurality of through heat dissipation holes are evenly arranged around the outer 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 one to one; an adjusting ring is installed at each end of the cable housing, and the inner sides of the adjusting rings are in contact with 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 rings presses the multiple movable slats to move radially inward and causes the opening and closing blocks to disengage 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 switchable 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 switchable 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 switchable power cable according to claim 1, characterized in that: An external power ring is rotatably installed at both ends of the cable housing. A connecting rod is provided on the upper and lower sides of the inner side of the external power ring. Arc-shaped openings are provided on the upper and lower sides of the cable housing. The connecting rod passes through the arc-shaped openings of the cable housing and is connected to the outer side of the adjustment ring.

5. The heat dissipation switchable power cable according to claim 4, characterized in that: Limit rods are provided on 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 shell in an arc-shaped track.

6. The heat dissipation switchable power cable according to claim 4, characterized in that: A locking ring body is screwed onto the threaded portion of the connecting rod; the locking ring body is rotated and fastened to the outer end surface of the cable housing.

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

8. The heat dissipation switchable 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; the two ends of the closed spring column are elastically pressed between the support plate and the movable strip.

9. The heat dissipation switchable 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 switchable power cable according to claim 1, characterized in that: 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 shell; the ring sleeves are penetrated by screws and connected to the threaded holes of the outer sleeve layer.

Images