High-temperature-resistant anti-cracking overhead insulated cable

Abstract

The utility model relates to the field of cable especially relates to a high temperature resistant anti -cracking overhead insulated cable, including frame assembly, support assembly connected on frame assembly and auxiliary assembly connected on frame assembly. The utility model through the first insulation cover in frame assembly and first support layer synergistic effect, provide structure support, the heat strip of heat dissipation rib cooperation can more effectively transmit heat to heat dissipation rib, further promote the heat dissipation capacity of whole, can effectively reduce the temperature of cable under high temperature environment, thereby significantly improve the high temperature resistant performance of cable, and effectively prevent the material aging and the cracking phenomenon caused by internal stress accumulation under long -term high temperature effect, through the compensation layer in support assembly, second support layer and second reinforcing layer form a high strength, high toughness support core, can effectively bear external mechanical load and internal cable's tension, and the second reinforcing layer of net -like braided structure improves cable tensile and wear resistance ability.

Description

Technical Field

[0001] This utility model relates to the field of cables, and in particular to a high-temperature resistant and crack-resistant overhead insulated cable. Background Technology

[0002] Overhead insulated cables, as an indispensable key component of power transmission systems, are widely used in outdoor power transmission and distribution lines, especially in densely populated urban areas, complex terrains, and places where aesthetics are important.

[0003] Currently, most overhead insulated cables are exposed to extreme temperature changes for a long time. High temperatures not only accelerate the aging and thermal degradation of insulation materials, but also cause differences in thermal expansion between the insulation layer and the conductor, leading to cracks in the insulation or sheath materials and affecting the service life of the cable. Utility Model Content

[0004] To overcome the problems of accelerated aging and thermal degradation of existing insulation materials due to high temperatures, as well as cracking caused by the difference in thermal expansion between the insulation layer and the conductor.

[0005] The technical solution of this utility model is: a high-temperature resistant and crack-resistant overhead insulated cable, comprising a frame assembly, a support assembly connected to the frame assembly, and an auxiliary assembly connected to the frame assembly.

[0006] The frame assembly includes an outer sheath connected to a support assembly and a first insulating sleeve connected to the outer sheath;

[0007] The support assembly includes a cable connected to a first insulating sleeve and a compensation layer connected to the cable;

[0008] The auxiliary component includes a first retaining ring connected to the outer sheath and a second retaining ring connected to the first retaining ring.

[0009] Preferably, the frame assembly further includes heat dissipation ribs connected to the outer sheath, a first reinforcing layer connected to the first insulating sleeve, and a heat-conducting strip connected to the first reinforcing layer. The heat dissipation ribs are circumferentially distributed on the outer side of the outer sheath, and the heat-conducting strips are circumferentially distributed inside the first reinforcing layer.

[0010] Preferably, the frame assembly further includes a first support layer connected to the first insulating sleeve and a second insulating sleeve connected to the first support layer, wherein the first support layer is a ring-shaped mesh structure.

[0011] Preferably, the support assembly further includes a second support layer connected to the compensation layer and a second reinforcing layer connected to the second support layer, wherein the second reinforcing layer is a mesh woven structure.

[0012] Preferably, the auxiliary component further includes a bolt connected to the first retaining ring and the second retaining ring, and a washer connected to the bolt, the washer being located at the connection between the bolt and the first retaining ring and the second retaining ring.

[0013] Preferably, the auxiliary component further includes a traction groove connected to the second retaining ring, the traction groove being welded to the second retaining ring, and the inner side of the traction groove being provided with a metal liner.

[0014] The beneficial effects of this utility model are:

[0015] 1. This utility model provides structural support through the synergistic effect of the first insulating sleeve and the first supporting layer in the frame assembly. The heat dissipation ribs are circumferentially distributed on the outside of the outer sheath, which can effectively dissipate the heat generated inside the cable to the outside. The heat-conducting strips are circumferentially distributed inside the first insulating sleeve, which can more effectively transfer heat to the heat dissipation ribs, further improving the overall heat dissipation capacity. This can effectively reduce the temperature of the cable in high-temperature environments, thereby significantly improving the high-temperature resistance of the cable and effectively preventing material aging and cracking caused by internal stress accumulation due to long-term high-temperature action.

[0016] 2. This utility model forms a high-strength and high-toughness support core through the compensation layer, the second support layer and the second reinforcing layer in the support component, which can effectively withstand external mechanical loads and the tension of internal cables. The second reinforcing layer with mesh braid structure improves the cable's tensile strength and wear resistance. Attached Figure Description

[0017] Figure 1 The diagram shown is a three-dimensional structural schematic of the cable of this utility model;

[0018] Figure 2 The diagram shown is a three-dimensional structural schematic of the frame component of this utility model.

[0019] Figure 3 The diagram shown is a three-dimensional structural schematic of the support component of this utility model.

[0020] Figure 4 The diagram shown is a three-dimensional structural schematic of the second reinforcing layer of this utility model;

[0021] Figure 5 The diagram shown is a three-dimensional structural schematic of the auxiliary component of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Frame assembly; 2. Support assembly; 3. Auxiliary assembly; 101. Outer sheath; 102. Heat dissipation rib; 103. First reinforcing layer; 104. Heat-conducting strip; 105. First insulating sleeve; 106. First support layer; 107. Second insulating sleeve; 201. Cable; 202. Compensation layer; 203. Second reinforcing layer; 204. Second support layer; 301. First retaining ring; 302. Bolt; 303. Washer; 304. Second retaining ring; 305. Traction groove. Detailed Implementation

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

[0024] A high-temperature resistant and crack-resistant overhead insulated cable, according to Figures 1-5 As shown, a high-temperature resistant and crack-resistant overhead insulated cable includes a frame assembly 1, a support assembly 2 connected to the frame assembly 1, and an auxiliary assembly 3 connected to the frame assembly 1.

[0025] The frame assembly 1 includes an outer sheath 101 connected to the support assembly 2 and a first insulating sleeve 105 connected to the outer sheath 101;

[0026] Support component 2 includes a cable 201 connected to the first insulating sleeve 105 and a compensation layer 202 connected to the cable 201;

[0027] The auxiliary component 3 includes a first retaining ring 301 connected to the outer sheath 101 and a second retaining ring 304 connected to the first retaining ring 301.

[0028] according to Figure 2 The frame assembly 1 also includes heat dissipation ribs 102 connected to the outer sheath 101, a first reinforcing layer 103 connected to the first insulating sleeve 105, and heat-conducting strips 104 connected to the first reinforcing layer 103. The heat dissipation ribs 102 are circumferentially distributed on the outside of the outer sheath 101, and the heat-conducting strips 104 are circumferentially distributed inside the first reinforcing layer 103.

[0029] according to Figure 2 The frame assembly 1 also includes a first support layer 106 connected to the first insulating sleeve 105 and a second insulating sleeve 107 connected to the first support layer 106. The first support layer 106 has a ring-shaped mesh structure.

[0030] It should be noted that the outer sheath 101 provides mechanical protection, the heat dissipation ribs 102 increase the outer surface area and improve heat dissipation efficiency, the first reinforcing layer 103 enhances the impact and shock resistance of the frame assembly 1, the heat-conducting strip 104 can improve the conduction of heat from the inside to the outside and improve the heat resistance of the cable, the first insulating sleeve 105 and the second insulating sleeve 107 can prevent leakage and ensure electrical safety, and the ring mesh structure first support layer 106 can reduce the weight of the assembly and improve the stability when it is suspended in the air while ensuring strength.

[0031] according to Figure 3 and Figure 4 The support component 2 also includes a second support layer 204 connected to the compensation layer 202 and a second reinforcing layer 203 connected to the second support layer 204, wherein the second reinforcing layer 203 is a mesh woven structure.

[0032] It should be noted that the compensation layer 202 can absorb or alleviate stress and deformation, and compensate for thermal expansion. The second support layer 204 improves the stability of the second reinforcing layer 203, while the mesh braided structure significantly enhances the overall strength, toughness and deformation resistance, thereby improving the strength of the cable.

[0033] according to Figure 5 The auxiliary component 3 also includes a bolt 302 connected to the first retaining ring 301 and the second retaining ring 304, and a washer 303 connected to the bolt 302. The washer 303 is located at the connection between the bolt 302 and the first retaining ring 301 and the second retaining ring 304.

[0034] according to Figure 5 The auxiliary component 3 also includes a traction groove 305 connected to the second retaining ring 304. The traction groove 305 is welded to the second retaining ring 304, and the inner side of the traction groove 305 is provided with a metal liner.

[0035] It should be noted that the first retaining ring 301, bolt 302, and second retaining ring 304 facilitate cable fixing, the washer 303 increases the bearing area of ​​the bolt 302, reduces stress concentration, and prevents damage, the traction groove 305 facilitates overhead cable operation, and the metal liner provides an additional protective layer, improving the wear resistance and tensile strength of the traction groove 305.

[0036] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A high-temperature resistant and crack-resistant overhead insulated cable, characterized in that: It includes a frame component (1), a support component (2) connected to the frame component (1), and an auxiliary component (3) connected to the frame component (1); The frame assembly (1) includes an outer sheath (101) connected to the support assembly (2) and a first insulating sleeve (105) connected to the outer sheath (101); The support assembly (2) includes a cable (201) connected to the first insulating sleeve (105) and a compensation layer (202) connected to the cable (201); The auxiliary component (3) includes a first retaining ring (301) connected to the outer sheath (101) and a second retaining ring (304) connected to the first retaining ring (301).

2. The high-temperature resistant and crack-resistant overhead insulated cable according to claim 1, characterized in that: The frame assembly (1) further includes a heat dissipation rib (102) connected to the outer sheath (101), a first reinforcing layer (103) connected to the first insulating sleeve (105), and a heat-conducting strip (104) connected to the first reinforcing layer (103). The heat dissipation rib (102) is circumferentially distributed on the outside of the outer sheath (101), and the heat-conducting strip (104) is circumferentially distributed inside the first reinforcing layer (103).

3. The high-temperature resistant and crack-resistant overhead insulated cable according to claim 1, characterized in that: The frame assembly (1) further includes a first support layer (106) connected to the first insulating sleeve (105) and a second insulating sleeve (107) connected to the first support layer (106), wherein the first support layer (106) is a ring mesh structure.

4. The high-temperature resistant and crack-resistant overhead insulated cable according to claim 1, characterized in that: The support component (2) further includes a second support layer (204) connected to the compensation layer (202) and a second reinforcing layer (203) connected to the second support layer (204), wherein the second reinforcing layer (203) is a mesh woven structure.

5. A high-temperature resistant and crack-resistant overhead insulated cable according to claim 1, characterized in that: The auxiliary component (3) also includes a bolt (302) connected to the first retaining ring (301) and the second retaining ring (304) and a washer (303) connected to the bolt (302), the washer (303) being located at the connection between the bolt (302) and the first retaining ring (301) and the second retaining ring (304).

6. A high-temperature resistant and crack-resistant overhead insulated cable according to claim 1, characterized in that: The auxiliary component (3) also includes a traction groove (305) connected to the second retaining ring (304), the traction groove (305) being welded to the second retaining ring (304), and the inner side of the traction groove (305) being provided with a metal liner.

Images