CN217306177U - High temperature resistant photovoltaic cable - Google Patents

Abstract

The utility model relates to the technical field of cables, specifically be a high temperature resistant photovoltaic cable. The utility model discloses a high temperature resistant photovoltaic cable includes: a plurality of conductive wire cores; the heat dissipation support assemblies are sleeved on the conductive wire cores and used for separating the conductive wire cores; and an isolation layer. Fixing the conductive wire core through a plurality of heat dissipation supporting components that set up to make not take place the contact between the conductive wire core, thereby stopping the conductive wire core and carrying out power transmission's in-process, because of the increase of the electric current that the mutual contact leads to and then the temperature promotes, simultaneously, heat dissipation supporting component supports and keeps apart out the clearance with cable inside, thereby improves the radiating efficiency, has solved the relatively poor not high temperature resistant technical problem of current photovoltaic cable fire behaviour.

Description

High temperature resistant photovoltaic cable

Technical Field

The utility model relates to the technical field of cables, specifically be a high temperature resistance photovoltaic cable.

Background

The photovoltaic cable is used for transmitting and distributing electric energy, and is commonly used for urban underground power grids, power station leading-out lines, power supply in industrial and mining enterprises and power transmission lines under river-crossing seawater. In photovoltaic circuits, the cable's specific gravity is increasing. Photovoltaic cables are cable products used in the trunk lines of photovoltaic systems to transmit and distribute high power electrical energy, including photovoltaic cables of various voltage classes, 1-500KV and above, and various insulations. The China economy continues to grow rapidly, a huge market space is provided for cable products, strong attraction is brought to the China market, the world focuses on the China market, and the huge production capacity formed by the China cable manufacturing industry makes the world look at after the short decades of reform are opened.

The current photovoltaic cable is poor in fireproof and flame-retardant performance, does not have a good safety protection effect, and is easy to cause damage to an inner core of the cable.

SUMMERY OF THE UTILITY MODEL

The utility model provides a high temperature resistant photovoltaic cable to the relatively poor not high temperature resistant technical problem of current photovoltaic cable fire prevention fire behaviour has been solved.

In order to solve the technical problem, the utility model provides a high temperature resistant photovoltaic cable, include: a plurality of conductive wire cores; the heat dissipation support components are sleeved on the conductive wire cores and used for separating the conductive wire cores; and an isolation layer.

Further, the outer side of the conductive wire core is coated with an insulating sheath; the insulating sheath comprises a heat insulating layer attached to the conductive wire core; and an insulating layer covering the thermal insulation layer.

Further, the heat dissipation support assembly includes: the supporting sleeve ring and the supporting rods are arranged on the supporting sleeve ring; the supporting lantern ring is arranged in the center of an annular space enclosed by the plurality of conductive wire cores; and the support rods respectively correspond to the corresponding conductive wire cores, so that the conductive wire cores are separated.

Furthermore, a groove for inserting the supporting rod is formed in the outer surface of the supporting lantern ring.

Furthermore, arc-shaped supporting sleeves are arranged at one ends of the supporting rods, which are contacted with the corresponding conductive wire cores; the radian of the arc-shaped supporting sleeve is the same as the curvature of the conductive wire core, so that the conductive wire core is clamped in the arc-shaped supporting sleeve.

Furthermore, a limiting connecting rod component is also arranged on the supporting rod; wherein connect fixedly between two adjacent bracing pieces through spacing connecting rod subassembly.

Further, the limit connecting rod assembly comprises a left limit connecting rod and a right limit connecting rod; wherein the left limit connecting rod is provided with a fixed bulge; a fixing groove is formed in the right limiting connecting rod; the adjacent supporting rods are clamped with the left limiting connecting rod and the right limiting connecting rod to realize fixation.

Further, the isolation layer is sleeved on the conductive wire core and the periphery of the heat dissipation support component, so that the isolation layer of the heat dissipation support component and the conductive wire core is coated, and the conductive wire core is not in contact with the outside.

Further, the isolation layer is made of nitrile rubber.

The beneficial effects of the utility model are that, the utility model discloses a high temperature resistant photovoltaic cable fixes the conductive core through a plurality of heat dissipation supporting components that set up to make and do not take place the contact between the conductive core, thereby block the conductive core at the in-process that carries out power transmission, because of the increase of electric current that the mutual contact leads to and then the temperature promotes, simultaneously, heat dissipation supporting component supports and keeps apart the clearance with cable inside, thereby improves the radiating efficiency, has solved the relatively poor not high temperature resistant technical problem of current photovoltaic cable fire behaviour.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic cross-sectional view of a high temperature resistant photovoltaic cable of the present invention;

fig. 2 is a schematic structural diagram of a heat dissipation support assembly in the high temperature resistant photovoltaic cable of the present invention;

FIG. 3 is a schematic front view of a spacing connecting rod in the heat dissipating support assembly;

fig. 4 is a schematic view of the back side of the position-limiting connecting rod in the heat dissipation support assembly.

In the figure:

conductive wire core 1, heat dissipation supporting component 2, supporting sleeve ring 21, supporting rod 22, arc supporting sleeve 23, limiting connecting rod component 3, left limiting connecting rod 31, fixing protrusion 311, right limiting connecting rod 32, fixing groove 321 and isolating layer 4

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 and 2, the present embodiment provides a high temperature resistant photovoltaic cable, including: a plurality of conductive wire cores 1; the heat dissipation support components 2 are sleeved on the conductive wire cores 1 and are used for separating the conductive wire cores 1; and an isolation layer 4.

In this embodiment, the heat dissipation supporting component 2 is sleeved outside the conductive wire core 1, and fixes the conductive wire core 1, so that the conductive wire core 1 is not in contact with each other, thereby preventing the conductive wire core 1 from increasing current and further increasing temperature due to mutual contact in the process of power transmission, and meanwhile, the heat dissipation supporting component 2 supports the inside of the cable and isolates a gap, thereby improving heat dissipation efficiency.

In this embodiment, a plurality of heat dissipation supporting component 2 are evenly arranged in the cable to utilize two adjacent heat dissipation supporting component 2 to strain the conductive core 1 in this section of cable, in order to realize contactless between the conductive core 1, and furthest's reduction is favorable to thermal giving off to conductive core 1's cladding.

In this embodiment, the outside of the conductive wire core 1 is covered with an insulating sheath; the insulating sheath comprises a heat insulating layer attached to the conductive wire core 1; and an insulating layer covering the thermal insulation layer.

In the present embodiment, the material of the thermal insulation layer is selected from polyurethane fiber; the insulating layer is made of rubber.

In this embodiment, the heat dissipation support assembly 2 includes: a supporting lantern ring 21 and a plurality of supporting rods 22 arranged on the supporting lantern ring 21; the supporting ring 21 is arranged in the center of an annular space enclosed by the plurality of conductive wire cores 1; and the support rods 22 respectively correspond to the corresponding conductive wire cores 1, thereby separating the conductive wire cores 1.

In this embodiment, the supporting collar 21 is installed in an annular space enclosed by the plurality of conductive wire cores 1, so as to separate the conductive wire cores 1, and the supporting collar 21 leaves an air flow channel at the center of the cable, so as to facilitate the flow of air to take away heat.

In this embodiment, the outer surface of the supporting collar 21 is provided with a groove for inserting the supporting rod 22.

In this embodiment, the supporting rods 22 can be inserted into the grooves on the outer surface of the supporting sleeve 21 for fixing, so that in actual use, the number of the supporting rods 22 can be selected according to the specific number of the conductive wire cores 1, and the connecting mode between the supporting rods 22 and the supporting sleeve 21 can make the cable integrally foldable, so that the movement of the conductive wire cores 1 in the ring phase is not affected. Thereby being more convenient for practical use.

In this embodiment, the end of each support rod 22 contacting with the corresponding conductive wire core 1 is provided with an arc-shaped support sleeve 23; the radian of the arc-shaped supporting sleeve 23 is the same as the curvature of the conductive wire core 1, so that the conductive wire core 1 is clamped in the arc-shaped supporting sleeve 23.

In this embodiment, the radian of the arc-shaped supporting sleeve 23 is the same as the curvature of the conductive wire core 1, so that the conductive wire cores 1 can be clamped into the respective arc-shaped supporting sleeves 23, and the rotation does not cause abrasion, thereby protecting the conductive wire cores 1.

As shown in fig. 2, 3 and 4, in the present embodiment, a limit connecting rod assembly 3 is further disposed on the supporting rod 22; wherein, two adjacent support rods 22 are fixedly connected through the limit connecting rod component 3.

In this embodiment, the limiting connection rod assembly 3 and the support rod 22 are integrally arranged, and the limiting rod assembly can effectively prevent the support rod 22 from falling off and contacting the conductive wire core 1 caused by shaking.

In this embodiment, the limit connecting rod assembly 3 includes a left limit connecting rod 31 and a right limit connecting rod 32; wherein the left limit connecting rod 31 is provided with a fixed bulge 311; a fixing groove 321 is formed in the right limiting connecting rod 32; the adjacent support rods 22 are fixed by clamping the left limit connecting rod 31 and the right limit connecting rod 32.

In this embodiment, the left limit connecting rod 31 and the right limit connecting rod 32 are matched in shape, and the left limit connecting rod 31 and the right limit connecting rod 32 are attached to each other and have the same width as the support rod 22.

In this embodiment, the left limiting connecting rod 31 and the right limiting connecting rod 32 are made of plastic, and the number of the fixing protrusions 311 and the number of the fixing grooves 321 include, but are not limited to, 2, in an actual use process, the arrangement distance of the supporting rods 22 can be selected according to the specific number of the conductive wire cores 1, and the fixing protrusions 311 are clamped in different fixing grooves 321, so that the supporting rods 22 can be fixed at different distances.

In this embodiment, the isolation layer 4 is sleeved on the periphery of the conductive wire core 1 and the heat dissipation support component 2, so as to coat the isolation layer 4 of the heat dissipation support component 2 and the conductive wire core 1, so that the conductive wire core 1 is not in contact with the outside.

In this embodiment, the material of the isolation layer 4 is nitrile rubber.

To sum up, the utility model discloses a high temperature resistant photovoltaic cable fixes conducting wire core 1 through a plurality of heat dissipation supporting component 2 that set up to make and do not take place the contact between the conducting wire core 1, thereby block conducting wire core 1 and carrying out power transmission's in-process, because of the increase of the electric current that the mutual contact leads to and then the temperature promotes, simultaneously, heat dissipation supporting component 2 supports and keeps apart the clearance with the cable is inside, thereby improves the radiating efficiency, has solved the relatively poor not high temperature resistant technical problem of current photovoltaic cable fire behaviour.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the description, and must be determined according to the scope of the claims.

Claims (7)

1. A high temperature resistant photovoltaic cable, comprising:

a plurality of conductive wire cores; and

the heat dissipation support components are sleeved on the conductive wire cores and used for separating the conductive wire cores; and

an isolation layer;

the outer side of the conductive wire core is coated with an insulating sheath;

the insulating sheath comprises a heat insulating layer attached to the conductive wire core; and

an insulating layer covering the thermal insulation layer;

the heat dissipation support assembly includes: the supporting sleeve ring and the supporting rods are arranged on the supporting sleeve ring; wherein

The supporting lantern ring is arranged in the center of an annular space enclosed by the plurality of conductive wire cores; and is

The support rods respectively correspond to the corresponding conductive wire cores, so that the plurality of conductive wire cores are separated.

2. The photovoltaic cable of claim 1,

the outer surface of the supporting lantern ring is provided with a groove for the supporting rod to be inserted.

3. The photovoltaic cable of claim 2,

one end of each support rod, which is contacted with the corresponding conductive wire core, is provided with an arc-shaped support sleeve;

the radian of the arc-shaped supporting sleeve is the same as the curvature of the conductive wire core, so that the conductive wire core is clamped in the arc-shaped supporting sleeve.

4. The photovoltaic cable of claim 3,

the support rod is also provided with a limiting connecting rod component; wherein

And the two adjacent supporting rods are fixedly connected through the limiting connecting rod component.

5. The photovoltaic cable of claim 4,

the limiting connecting rod assembly comprises a left limiting connecting rod and a right limiting connecting rod; wherein

A fixed bulge is arranged on the left limit connecting rod;

a fixed groove is formed in the right limiting connecting rod;

the adjacent supporting rods are clamped with the left limiting connecting rod and the right limiting connecting rod to realize fixation.

6. The photovoltaic cable of claim 1,

the isolation layer is sleeved on the periphery of the conductive wire core and the heat dissipation support component so as to coat the isolation layer of the heat dissipation support component and the conductive wire core, so that the conductive wire core is not in contact with the outside.

7. The photovoltaic cable of claim 6,

the isolation layer is made of nitrile rubber.

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