CN209962763U

CN209962763U - High-temperature-resistant snow-accumulation-preventing cable

Info

Publication number: CN209962763U
Application number: CN201920927157.7U
Authority: CN
Inventors: 李付昌
Original assignee: Hebei Xiongke Wire And Cable Manufacturing Co Ltd
Current assignee: Hebei Xiongke Wire And Cable Manufacturing Co Ltd
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2020-01-17
Anticipated expiration: 2029-06-19

Abstract

The utility model discloses a high temperature resistant snow accumulation cable belongs to cable technical field. The utility model provides a high temperature resistant snow cable of preventing, includes a plurality of electricity core 1, filling layer 2, insulating layer 3 sets up silicone tube 4 outward, silicone tube 4 sets up layer 5 that generates heat outward. Insulating layer 3 sets up outside electric core 1, electric core 1 with set up filling layer 2 between the insulating layer 3, silicone tube 4 has good adiabaticity, can prevent that external high temperature from conveying to electric core 1, extension cable life. The filling layer 2 is made of flexible material. The utility model discloses have high temperature resistant, snow can be prevented to snow weather, and snow is for preventing when melting that snow from crushing the cable, extension cable life's beneficial effect.

Description

High-temperature-resistant snow-accumulation-preventing cable

Technical Field

The utility model relates to a high temperature resistant snow accumulation cable belongs to cable technical field.

Background

At present, along with the rapid development of power grid construction, the demand of cables for power grid construction is increasing day by day, and meanwhile, the requirements on the use safety of the cables are higher and higher, and especially in some areas with large day-night temperature difference and cold areas, the tests on the safety of the cables are more severe. In some areas, day and night temperature difference is large, and aging of a cable insulating layer is accelerated due to environmental reasons after the cable is used for a long time, so that the service life of the cable is shortened. And in cold areas, snow often falls in winter, snow is easily accumulated on the surface of the cable, even the cable is easily frozen, and the cable is easily crushed.

SUMMERY OF THE UTILITY MODEL

For solving among the prior art cable can not resist high temperature, the problem of the easy disconnected cable of pressing of snowing, the utility model provides a high temperature resistant snow cable of preventing, concrete scheme is as follows:

a high-temperature-resistant snow accumulation-preventing cable comprises a plurality of electric cores, a filling layer and an insulating layer, wherein the insulating layer is arranged outside the electric cores, the filling layer is arranged between the electric cores and the insulating layer, a silicone tube is arranged outside the insulating layer, and a heating layer is arranged outside the silicone tube;

the battery cell support comprises a plurality of battery cells, wherein the battery cells are arranged in a grid, the battery cells are arranged in the grid, the battery cells are arranged in; the heating layer is provided with an inner layer and an outer layer, the outer layer is a plurality of radiating fins which are arranged outside the inner layer at equal intervals, and heating resistance wires are arranged in the heating layer; the resistance wire is in the form of a spiral spring on the inner layer, and the resistance wire is in serpentine arrangement on the outer layer.

The heating layer is internally provided with a cavity, the heating resistance wire is arranged in the cavity, and the filler in the cavity is water.

The outer layer of the heating layer is arranged perpendicular to a cable spool at equal intervals along the cable.

The heating layer is made of heat conducting materials.

The contact part of the tops of the two support rods on the support frame and the insulating layer is arc-shaped.

And a spring is arranged between the two support rods on the support rod.

The filling layer is made of flexible materials.

The utility model has the advantages that: the silicone tube is arranged outside the insulating layer in the cable, and can achieve the heat insulation effect and prevent external high temperature from being transmitted to the interior of the cable; a heating layer is arranged outside the cable, a cavity in the heating layer is provided with a heating resistance wire, and the outside of the cable can be heated when snowing to prevent snow from accumulating; the outer layer of the heating layer is provided with the radiating fins, so that the radiating area is increased, and accumulated snow or condensed ice can be quickly melted; the cavity in the heating layer is filled with water, so that the heating process is mild, and meanwhile, heat can be absorbed in hot days, and the service life of the cable is prolonged; the setting of bracing piece can bear a burden the pressure of snow to the cable when the snow, prevents that the cable from crushing.

Drawings

FIG. 1 is a cross-sectional view of an embodiment of the present invention;

FIG. 2 is a side view of the heat generating layer of FIG. 1;

fig. 3 is a sectional view taken along the plane a-a in fig. 2.

In the figure: 1, an electric core; 2, filling a layer; 3, an insulating layer; 4, a silicone tube; 5, a heating layer; 51, an inner layer; 52, an outer layer; 53, heating resistance wires; 54, water; 6, supporting the rod; 61, a strut; 62, a spring.

Detailed Description

The materials, methods and apparatus used in the following examples, which are not specifically illustrated, are conventional in the art and are commercially available to those of ordinary skill in the art.

In the following description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and "upright" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the following description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the connection may be direct or indirect via an intermediate medium, or the connection may be internal to both components. To those of ordinary skill in the art, the specific meaning of the written terms in the present invention can be understood as a specific case.

In addition, in the following description of the present invention, the meaning of "a plurality", and "a plurality" is two or more unless otherwise specified.

The present invention will be described in further detail with reference to the accompanying drawings, but the following detailed description is not to be construed as limiting the present invention.

As shown in fig. 1, a high temperature resistant snow accumulation prevention cable comprises a plurality of battery cells 1, a filling layer 2 and an insulating layer 3, a silicone tube 4 is arranged outside the insulating layer 3, and a heating layer 5 is arranged outside the silicone tube 4. Insulating layer 3 sets up outside electric core 1, electric core 1 with set up filling layer 2 between the insulating layer 3, silicone tube 4 has good adiabaticity, can prevent that external high temperature from conveying to electric core 1, extension cable life. The filling layer 2 is made of flexible material.

Set up support frame 6 between two adjacent electric core 1, support frame 6 is Y shape, 6 lower extremes of support frame are inserted between two adjacent electric core 1, fix through electric core 1, and 6 lower extreme bottoms interconnect of a plurality of support frames are fixed. Two supporting rods 61 at the upper end of the supporting frame 6 are connected with the lower end of the supporting frame 6 through a rotating shaft and can rotate. The top of the support rod 61 is arc-shaped and is in contact with the insulating layer. The two struts 61 are connected by a spring 62, said spring 62 having no spring force when the struts are not opened.

As shown in fig. 2, the heat generating layer 5 includes an inner layer 51 and an outer layer 52. The outer layer 52 is a hollow heat sink and is arranged outside the inner layer 51 at equal distance from the cable axis. The shell of the heating layer 5 is made of heat conducting materials, the inside of the heating layer is a cavity, and the inner layer 51 is connected with the cavity of the outer layer 52. Heating resistance wires 53 are arranged in the cavity, the heating resistance wires 53 are spirally wound on the inner layer 51, and are arranged in a snake shape on the outer layer 52. The cavity in the heating layer 5 is filled with water 54, so that the heating process can be milder, the service life of the heating layer 5 is prolonged, heat can be absorbed in hot days, and the burden of the silicone tube 4 is reduced.

When snow falls in cold weather, the heating resistance wire 53 is electrified and heated to heat the water 54, so that the snow can be melted when falling on the cable, and the arrangement of the radiating fins which are vertical to the cable shaft can ensure that the melted snow water directly falls along the gaps and can not be accumulated. The weight that produces when snow has not yet melted causes pressure to the cable, makes support frame 6 upper end branch 61 outwards rotate, and spring 62 is in tensile state this moment, and spring 62 can give certain holding power to the cable to the inward pulling force of branch 61, prevents that the gravity of snow from directly acting on electric core 1, prevents that electric core 1 from crushing. When the weather is hot, the water in the heating layer 5 can absorb a part of heat, and the residual heat is transferred to the silica gel layer 4 and then is absorbed, so that the influence on the internal battery cell is avoided.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a high temperature resistant snow cable of preventing, includes a plurality of electricity core, filling layer, insulating layer, its characterized in that: the insulating layer is arranged outside the electric core, a filling layer is arranged between the electric core and the insulating layer, a silica gel tube is arranged outside the insulating layer, and a heating layer is arranged outside the silica gel tube; the battery cell support comprises a plurality of battery cells, wherein the battery cells are arranged in a grid, the battery cells are arranged in the grid, the battery cells are arranged in; the heating layer is provided with an inner layer and an outer layer, the outer layer is a plurality of radiating fins which are arranged outside the inner layer at equal intervals, and heating resistance wires are arranged in the heating layer; the resistance wire is in the form of a spiral spring on the inner layer, and the resistance wire is in serpentine arrangement on the outer layer.

2. The high temperature resistant snow protection cable of claim 1, wherein: the heating layer is internally provided with a cavity, the heating resistance wire is arranged in the cavity, and the filler in the cavity is water.

3. The high temperature resistant snow protection cable of claim 1, wherein: the outer layer of the heating layer is arranged perpendicular to a cable spool at equal intervals along the cable.

4. The high temperature resistant snow protection cable of claim 1, wherein: the heating layer is made of heat conducting materials.

5. The high temperature resistant snow protection cable of claim 1, wherein: the contact part of the tops of the two support rods on the support frame and the insulating layer is arc-shaped.

6. The high temperature resistant snow protection cable of claim 1, wherein: and a spring is arranged between the two support rods on the support frame.

7. The high temperature resistant snow protection cable of claim 1, wherein: the filling layer is made of flexible materials.