CN219267922U

CN219267922U - Low-smoke halogen-free flame-retardant cable

Info

Publication number: CN219267922U
Application number: CN202320808719.2U
Authority: CN
Inventors: 吴仁和; 徐延龙; 李桂玉
Original assignee: Quanxing Cable Co ltd Jiangsu
Current assignee: Quanxing Cable Co ltd Jiangsu
Priority date: 2023-04-13
Filing date: 2023-04-13
Publication date: 2023-06-27
Anticipated expiration: 2033-04-13

Abstract

The utility model discloses a low-smoke halogen-free flame-retardant cable which comprises a cable body, a copper nose terminal and a heat exchange clamp assembly, wherein the cable body comprises a low-smoke halogen-free insulating layer, a glass fiber layer, a mica tape layer and an oxygen-free copper core, the copper nose terminal is sleeved on the oxygen-free copper core of the cable body and is in compression joint with the oxygen-free copper core, the heat exchange clamp assembly is sleeved on the copper nose terminal after compression joint, and the bottom of the heat exchange clamp assembly is sleeved at the end part of the low-smoke halogen-free insulating layer of the cable body. Guarantee the stability that electric power system used, improve the stability of copper nose terminal to cable conductor body crimping through heat transfer clamp subassembly simultaneously, solve current copper nose terminal and easily not hard up problem after long-term use to the cable crimping, solve the copper nose terminal of current cable and accumulate the problem that is difficult for radiating greatly during the use.

Description

Low-smoke halogen-free flame-retardant cable

Technical Field

The utility model relates to the technical field of cables, in particular to a low-smoke halogen-free flame-retardant cable.

Background

The low-smoke halogen-free flame-retardant cable is a modern environment-friendly cable, is widely applicable to large industrial sites, and needs to use a halogen-free material to ensure the low-smoke stability at high temperature.

And during the use period of the existing low-smoke halogen-free flame-retardant cable, the wiring terminal of the cable can be subjected to high temperature conditions due to long-time high-load operation, and when the temperature is increased, the resistance of the wiring terminal of the cable can be increased, so that larger voltage drop is generated when current passes through the wiring terminal, and the stability and the safety of a power system are affected.

The binding post of cable conductor is installed through the mode of crimping through the crimping mould usually, but can not appear the condition that looseness appears between terminal and the cable conductor, lacks supplementary card solid structure.

Based on the existing low-smoke halogen-free flame-retardant cable, the following defects exist: the copper nose terminal is easy to loosen after being used for a long time for cable crimping, and the cable terminal and the copper nose terminal are difficult to dissipate heat due to high-temperature accumulation during use. Therefore, we propose a low smoke halogen-free flame retardant cable.

Disclosure of Invention

The utility model mainly aims to provide a low-smoke halogen-free flame-retardant cable which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a low smoke and zero halogen fire-retardant cable conductor, includes cable conductor body, copper nose terminal and heat transfer clamp subassembly, the cable conductor body includes low smoke and zero halogen insulating layer, glass fiber layer, mica tape layer and oxygen-free copper core, copper nose terminal cover is located on the oxygen-free copper core of cable conductor body, and the copper nose terminal crimping on the oxygen-free copper core, on the copper nose terminal after the crimping was located to heat transfer clamp subassembly cover, and heat transfer clamp subassembly bottom cover locates the low smoke and zero halogen insulating layer tip of cable conductor body.

Further, the glass fiber layer, the mica tape layer and the oxygen-free copper core are sequentially arranged in the low-smoke halogen-free insulating layer.

Further, the heat exchange clamp assembly comprises a first heat exchange clamp and a second heat exchange clamp, radiating fins integrated with the first heat exchange clamp and the second heat exchange clamp are arranged on the periphery of the first heat exchange clamp and the periphery of the second heat exchange clamp, crimping clamping grooves corresponding to the crimped copper nose terminals are respectively formed in the inner tops of the first heat exchange clamp and the second heat exchange clamp, and cable body clamping grooves corresponding to the low-smoke halogen-free insulating layers are formed in the inner bottoms of the first heat exchange clamp and the second heat exchange clamp.

Further, the two ends of the first heat exchange clamp and the second heat exchange clamp are respectively provided with an installation lug integrated with the first heat exchange clamp and the second heat exchange clamp.

Further, corresponding mounting holes are formed in the mounting lugs of the first heat exchange clamp and the second heat exchange clamp.

Further, the mounting lugs of the first heat exchange clamp and the mounting lugs of the second heat exchange clamp are connected through bolt mounting.

Compared with the prior art, the utility model has the following beneficial effects: through the subassembly that cable conductor body, copper nose terminal and heat transfer clamp subassembly are constituteed, realize providing the cable conductor that a set of low smoke and zero halogen just has good heat transfer cooling part for electric power system, make the cable conductor body can not produce great harmful smog when receiving high temperature, and all have good heat-resistant flame retardant effect, simultaneously in the cable conductor body in high load during operation, carry out high-efficient heat transfer to the terminal link of cable conductor body tip through the heat transfer clamp subassembly, make outside air fully contact with the terminal of cable conductor body, with play certain cooling treatment, reduce the accumulation of temperature, reduce the increase of resistance, guarantee the stability that electric power system used, improve the stability of copper nose terminal to the crimping of cable body through the heat transfer clamp simultaneously, the problem that current copper nose terminal is easy not hard up after long-term use to the cable crimping is solved the copper nose terminal of current cable and is accumulated the problem that is difficult for heat dissipation greatly in the time.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a low smoke halogen-free flame retardant cable of the utility model.

Fig. 2 is a schematic diagram of copper nose terminal crimping of a low smoke zero halogen flame retardant cable of the present utility model.

Fig. 3 is an uncrimped schematic view of a copper nose terminal of a low smoke zero halogen flame retardant cable of the present utility model.

Fig. 4 is a schematic structural view of a heat exchange clip assembly of a low smoke halogen-free flame retardant cable of the utility model.

Fig. 5 is a schematic structural view of a first heat exchange clip of a low smoke halogen-free flame retardant cable of the utility model.

Fig. 6 is a schematic diagram of a cable body material layer of a low smoke halogen-free flame retardant cable of the utility model.

In the figure: 1. a cable body; 101. a low smoke halogen-free insulating layer; 102. a glass fiber layer; 103. mica tape layers; 104. an oxygen-free copper core; 2. copper nose terminals; 3. a heat exchange clamp assembly; 301. the first heat exchange clamp; 302. the second heat exchange clamp; 303. a crimping clamping groove; 304. a cable body clamping groove; 305. a mounting ear; 306. a mounting hole; 307. and a heat radiating fin.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1-6, a low smoke zero halogen flame retardant cable comprises a cable body 1, a copper nose terminal 2 and a heat exchange clamp assembly 3, wherein the cable body 1 comprises a low smoke zero halogen insulating layer 101, a glass fiber layer 102, a mica tape layer 103 and an oxygen-free copper core 104, the copper nose terminal 2 is sleeved on the oxygen-free copper core 104 of the cable body 1, the copper nose terminal 2 is in pressure connection with the oxygen-free copper core 104, the heat exchange clamp assembly 3 is sleeved on the copper nose terminal 2 after pressure connection, the bottom of the heat exchange clamp assembly 3 is sleeved on the end part of the low smoke zero halogen insulating layer 101 of the cable body 1, the low smoke zero halogen insulating layer 101 is made of polyolefin, magnesium hydroxide or aluminum hydroxide materials, and the glass fiber layer 102, the mica tape layer 103 and the oxygen-free copper core 104 are sequentially arranged in the low smoke zero halogen insulating layer 101.

The heat exchange clamp assembly 3 comprises a first heat exchange clamp 301 and a second heat exchange clamp 302, radiating fins 307 integrated with the first heat exchange clamp 301 and the second heat exchange clamp 302 are arranged on the periphery of the first heat exchange clamp 301 and the periphery of the second heat exchange clamp 302, crimping clamping grooves 303 corresponding to the crimped copper nose terminals 2 are respectively arranged at the inner tops of the first heat exchange clamp 301 and the second heat exchange clamp 302, cable body clamping grooves 304 corresponding to the low-smoke halogen-free insulating layer 101 are arranged at the inner bottoms of the first heat exchange clamp 301 and the second heat exchange clamp 302, the inner cavity diameter of the cable body clamping grooves 304 is smaller than that of the crimping clamping grooves 303, mounting lugs 305 integrated with the first heat exchange clamp 301 and the second heat exchange clamp 302 are respectively arranged at the two ends of the first heat exchange clamp 301 and the second heat exchange clamp 302, corresponding mounting holes 306 are respectively formed in the mounting lugs 305 of the first heat exchange clamp 301 and the mounting lugs 305 of the second heat exchange clamp 302 are connected through bolt mounting.

It should be noted that, the utility model is a low smoke halogen-free flame retardant cable, when in operation, personnel firstly sleeve the copper nose terminal 2 on the oxygen-free copper core 104 at the end part of the cable body 1, then press the heat exchange clamp assembly 3 on the copper nose terminal 2 through the compression mold, so that the compression clamping groove 303 in the heat exchange clamp assembly 3 is clamped on the periphery of the copper nose terminal 2 after compression, and meanwhile, the cable body clamping groove 304 in the heat exchange clamp assembly 3 is pressed on the low smoke halogen-free insulating layer 101 of the cable body 1, and then the first heat exchange clamp 301 and the second heat exchange clamp 302 of the heat exchange clamp assembly 3 are fixed by bolts, so that the heat exchange clamp assembly 3 can further improve the stability of the clamping connection between the copper nose terminal 2 and the cable body 1 while meeting the requirements of accelerating heat dissipation and cooling of the joint part of the cable end part of the heat exchange clamp assembly 3.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a low smoke and zero halogen flame retardant cable, includes cable conductor body (1), copper nose terminal (2) and heat transfer clamp subassembly (3), its characterized in that, cable conductor body (1) are including low smoke and zero halogen insulating layer (101), glass fiber layer (102), mica tape layer (103) and oxygen-free copper core (104), copper nose terminal (2) cover is located on oxygen-free copper core (104) of cable conductor body (1), and copper nose terminal (2) press-joint on oxygen-free copper core (104), on copper nose terminal (2) after the press-joint are located to heat transfer clamp subassembly (3) cover, and heat transfer clamp subassembly (3) bottom cover is located low smoke and zero halogen insulating layer (101) tip of cable conductor body (1).

2. A low smoke zero halogen flame retardant cable according to claim 1 wherein: the glass fiber layer (102), the mica tape layer (103) and the oxygen-free copper core (104) are sequentially arranged in the low-smoke halogen-free insulating layer (101).

3. A low smoke zero halogen flame retardant cable according to claim 1 wherein: the heat exchange clamp assembly (3) comprises a first heat exchange clamp (301) and a second heat exchange clamp (302), radiating fins (307) integrated with the first heat exchange clamp (301) and the second heat exchange clamp (302) are arranged on the periphery of the first heat exchange clamp (301) and the periphery of the second heat exchange clamp (302), crimping clamping grooves (303) corresponding to the crimped copper nose terminals (2) are respectively formed in the inner tops of the first heat exchange clamp (301) and the second heat exchange clamp (302), and cable body clamping grooves (304) corresponding to the low-smoke halogen-free insulating layers (101) are formed in the inner bottoms of the first heat exchange clamp (301) and the inner bottoms of the second heat exchange clamp (302).

4. A low smoke zero halogen flame retardant cable according to claim 3 wherein: and mounting lugs (305) integrated with the two ends of the first heat exchange clamp (301) and the second heat exchange clamp (302) are respectively arranged at the two ends of the first heat exchange clamp.

5. A low smoke zero halogen flame retardant cable according to claim 4 wherein: corresponding mounting holes (306) are formed in the mounting lugs (305) of the first heat exchange clamp (301) and the second heat exchange clamp (302).

6. A low smoke zero halogen flame retardant cable according to claim 5 wherein: the mounting lugs (305) of the first heat exchange clamp (301) are connected with the mounting lugs (305) of the second heat exchange clamp (302) through bolts.