CN219553255U - High-voltage cable for storage battery - Google Patents

Abstract

The utility model relates to a high-voltage cable of a storage battery, which comprises a movable sheath, an outer sheath, a shielding layer, a plastic water-blocking tape, an inner sheath, a plurality of cables and an inner reinforcing core, wherein the movable sheath, the outer sheath, the shielding layer, the plastic water-blocking tape, the inner sheath and the inner reinforcing core are sequentially arranged in sequence from outside to inside, a gap is arranged between the inner sheath and the inner reinforcing core, and a plurality of cables are arranged in the gap; the cable comprises a sheath, a winding, an insulating layer and a conductor, wherein the sheath, the winding, the insulating layer and the conductor are sequentially arranged in sequence from outside to inside, the sheath and the insulating layer are both made of irradiation crosslinking polyolefin, the conductor is formed by twisting a plurality of annealing soft copper wires, and 100% back twist is adopted for twisting the conductor. The high-voltage cable of the storage battery has the advantages of low temperature resistance, high flame retardance, low smoke, no halogen, weather resistance and the like, can completely meet the use requirement of the high-voltage cable of the storage battery, greatly prolongs the service life of the cable, and has great economic benefit.

Description

High-voltage cable for storage battery

Technical Field

The utility model relates to the technical field of cables, in particular to a high-voltage cable of a storage battery.

Background

Currently, with the development of new energy automobiles and battery industries worldwide, storage batteries, especially high-performance, high-capacity and high-power storage batteries, are used as energy sources in more and more industrial applications, and cables used in electrical equipment and automobiles have higher requirements on the transmission performance of the conventional cables with the improvement of charge and discharge current and power and the improvement of pressure resistance, high temperature resistance and shielding performance.

The electric automobile high voltage battery cable in the market at present is a single-core insulation sheath-added structure type cable, the insulation sheath material is TPE (thermoplastic elastomer), XLPO (cross-linked polyolefin) material, and the cable is used for connecting a storage battery in the electric automobile and is used for transmitting electric energy.

The cable has the advantages that the structure is simple, the safety performance of the cable is poor, and the flame retardant and heat insulating capacity of the cable is poor through the analysis, so that the application range of the cable on a battery is affected, and the cable has certain limitation.

Disclosure of Invention

Therefore, the utility model aims to solve the technical problems of cracking, large insulation leakage current, smoke generation after combustion and the like of the cable in the low-temperature environment in the prior art, and meets the requirements of the storage battery market on the cable.

In order to solve the technical problems, the utility model provides a high-voltage cable of a storage battery, which comprises a movable sheath, an outer sheath, a shielding layer, a plastic water-blocking tape, an inner sheath, a plurality of cables and an inner reinforcing core, wherein the movable sheath, the outer sheath, the shielding layer, the plastic water-blocking tape, the inner sheath and the inner reinforcing core are sequentially arranged in sequence from outside to inside, gaps are arranged between the inner sheath and the inner reinforcing core, and the plurality of cables are arranged in the gaps; the cable comprises a sheath, a winding, an insulating layer and a conductor, wherein the sheath, the winding, the insulating layer and the conductor are sequentially arranged in sequence from outside to inside, the sheath and the insulating layer are all made of irradiation crosslinking polyolefin, the conductor is formed by twisting a plurality of annealing soft copper wires, and 100% back twist is adopted for twisting the conductor. The high-voltage cable of the storage battery has the advantages of low temperature resistance, high flame retardance, low smoke, no halogen, weather resistance and the like, can completely meet the use requirement of the high-voltage cable of the storage battery, greatly prolongs the service life of the cable, and has great economic benefit.

In one embodiment of the utility model, the movable sheath comprises an annular inclusion, a first connecting boss and a second connecting boss, the annular inclusion is sleeved outside the outer sheath, an opening is formed in the side wall of the annular inclusion, the opening penetrates through two ends of the annular inclusion in the axial direction, the first connecting boss and the second connecting boss are respectively arranged at the opening of the annular inclusion, and the first connecting boss and the second connecting boss are connected through a buckle.

In an embodiment of the present utility model, the first connection boss is provided with a buckle, the second connection boss is provided with a clamping groove, and the buckle is disposed in the clamping groove.

In one embodiment of the present utility model, the materials of the annular inclusion, the first connection boss, the second connection boss and the buckle are polyurethane rubber.

In one embodiment of the utility model, the material of the outer sheath is polyethylene.

In one embodiment of the utility model, the shielding layer is a metal mesh layer.

In one embodiment of the present utility model, the material of the inner sheath is polyethylene.

In one embodiment of the utility model, the inner reinforcing core is EVA foam.

In one embodiment of the utility model, the cross sections of the outer sheath, the shielding layer, the plastic water-blocking tape and the inner sheath are all circular, the cross section of the inner reinforcing core is circular, and the outer sheath, the shielding layer, the plastic water-blocking tape, the inner sheath and the inner reinforcing core are concentrically arranged.

The plurality of cables are arranged in an annular array mode by taking the center of the inner reinforcing core as the center, and the cables are contacted with the inner wall of the inner sheath and the outer wall of the inner reinforcing core.

Compared with the prior art, the technical scheme of the utility model has the following advantages:

1) The softness of the whole cable is improved through extremely fine annealing multi-strand stranded soft copper conductors, and the cable has good electrical and mechanical properties and can be used in a complex environment;

2) The twisting of the conductor adopts a 100% back-twisting production process, so that the torsional stress of the conductor is eliminated;

3) The insulation and the sheath are made of excellent irradiation crosslinking polyolefin materials, the low temperature resistance can be up to minus 40 ℃, the flame retardance can be realized through FT4 bunching combustion, the low smoke meets the halogen-free requirements of EN 61034-2 and EN50525-1 standards, and the long-term outdoor use is met by acid and alkali resistance, salt fog resistance and ultraviolet resistance.

Drawings

In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings, in which

Fig. 1 is a cross-sectional view of a battery high voltage cable of the present utility model;

fig. 2 is a cross-sectional view of the cable of the present utility model.

Description of the specification reference numerals: the cable comprises a movable sheath 1, an annular inclusion 11, a first connecting boss 12, a buckle 121, a second connecting boss 13, a clamping groove 131, an outer sheath 2, a shielding layer 3, a plastic water blocking tape 4, an inner sheath 5, a cable 6, a sheath 61, a wrapping 62, an insulating layer 63, a conductor 64 and an inner reinforcing core 7.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.

Referring to fig. 1, the high-voltage cable for the storage battery comprises a movable sheath 1, an outer sheath 2, a shielding layer 3, a plastic water-blocking tape 4, an inner sheath 5, a plurality of cables 6 and an inner reinforcing core 7, wherein the movable sheath 1, the outer sheath 2, the shielding layer 3, the plastic water-blocking tape 4, the inner sheath 5 and the inner reinforcing core 7 are sequentially arranged from outside to inside, a gap 10 is arranged between the inner sheath 5 and the inner reinforcing core 7, and the plurality of cables 6 are arranged in the gap 10. The outer sheath 2, the shielding layer 3, the plastic water-blocking tape 4 and the inner sheath 5 wrap the plurality of cables 6 layer by layer outside the plurality of cables 6, and cooperate with the supporting function of the inner reinforcing core 7 inside, so that a multi-core cable structure can be formed. According to different choices, can select in a flexible way to install movable sheath 1 additional, movable sheath 1 is similar to the clamp structure, can convenient dismantlement and installation, can play the effect of the whole protection of cable at outermost.

Referring to fig. 2, the cable 6 includes a sheath 61, a winding 62, an insulating layer 63 and a conductor 64, wherein the sheath 61, the winding 62, the insulating layer 63 and the conductor 64 are sequentially arranged from outside to inside, the sheath 61 and the insulating layer 63 are made of irradiation cross-linked polyolefin, the conductor 64 is formed by twisting a plurality of annealed soft copper wires, and the twisting of the conductor 64 is 100% untwisted. Conductor 64 is formed by twisting a plurality of strands of thin copper wires in the same direction, and greatly improves the flexibility of the cable.

In the above-mentioned structure, the movable sheath 1 includes annular inclusion 11, connection boss first 12 and connection boss second 13, be equipped with the opening on the lateral wall of annular inclusion 11, the opening extends to the other end from the one end of annular inclusion 11 axis direction, connection boss first 12 and connection boss second 13 set up respectively in annular inclusion 11's open position department, annular inclusion 11 cover is established in the outside of oversheath 2, connect through the buckle between boss first 12 and the connection boss second 13. The first connecting boss 12 is provided with a buckle 121, the second connecting boss 13 is provided with a clamping groove 131, and the buckle 121 is arranged in the clamping groove 131. The annular inclusion 11, the first connecting boss 12, the second connecting boss 13 and the buckle 121 are all made of polyurethane rubber. The first connecting boss 12 and the second connecting boss 13 are of rectangular structures, are arranged along the radial direction of the opening position of the annular inclusion 11, and are pulled open when the movable sheath 1 is installed, the whole cable is plugged into the inner cavity of the annular inclusion 11 from the opening position, the first connecting boss 12 and the second connecting boss 13 are stacked together after being released, the first connecting boss 12 is pressed, the buckle 121 is pressed into the clamping groove 131 to form clamping connection, and the annular inclusion 11 is integrally wrapped outside the outer sheath 2 in a circular shape; the movable sheath 1 needs to be disassembled, and the buckle 121 is pulled out from the clamping groove 131, so that the whole cable is pulled out for the old.

The movable sheath 1 can also be made of TPU material, and is produced by extrusion molding of TPU sheath material, so that the heat resistance, chemical resistance, radiation resistance and high strength of the sheath are improved. The TPU sheath material has good chemical stability, namely excellent oil resistance, liquefied gas resistance and corrosion resistance, and can improve the reliability and the service life of the cable.

In addition, the materials of the outer sheath 2 and the inner sheath 5 are polyethylene, and the ultraviolet radiation resistant and environmental stress cracking resistant performances are realized.

Again, the shielding layer 3 is a metal mesh layer. The metal net is preferably an iron net, and the iron net is made of magnetic materials, so that the penetration of low-frequency electromagnetic waves can be reduced. In addition, the metal net can also be a gold net or a silver net, and the gold net or the silver net is made of a non-magnetic material, so that the penetration of high-frequency electromagnetic waves can be reduced.

The inner reinforcing core 7 of the present utility model is made of EVA foam. A filler, preferably a mineral fire-resistant rope, with fire-resistant particles attached to the rope body, which is an asbestos rope, may be added between the inner reinforcing core 7 and the inner sheath 5 depending on the particular use. The mineral fireproof rope has good flame-retardant effect.

In addition, the cross sections of the outer sheath 2, the shielding layer 3, the plastic water-blocking tape 4 and the inner sheath 5 are all circular, the cross section of the inner reinforcing core 7 is circular, and the outer sheath 2, the shielding layer 3, the plastic water-blocking tape 4, the inner sheath 5 and the inner reinforcing core 7 are concentrically arranged. The plurality of electric cables 6 are arranged in an annular array with the center of the inner reinforcing core 7 as the center, and the electric cables 6 are in contact with the inner wall of the inner sheath 5 and the outer wall of the inner reinforcing core 7.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present utility model will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present utility model.

Claims (10)

1. The utility model provides a battery high voltage cable which characterized in that: the cable comprises a movable sheath, an outer sheath, a shielding layer, a plastic water-blocking tape, an inner sheath, a plurality of cables and an inner reinforcing core, wherein the movable sheath, the outer sheath, the shielding layer, the plastic water-blocking tape, the inner sheath and the inner reinforcing core are sequentially arranged in sequence from outside to inside, and a gap is arranged between the inner sheath and the inner reinforcing core;

the cable comprises a sheath, a winding, an insulating layer and a conductor, wherein the sheath, the winding, the insulating layer and the conductor are sequentially arranged in sequence from outside to inside, the sheath and the insulating layer are made of irradiation crosslinking polyolefin, the conductor comprises a plurality of annealed copper wires, and the annealed copper wires are mutually stranded.

2. The battery high voltage cable of claim 1, wherein: the movable sheath comprises an annular inclusion, a first connecting boss and a second connecting boss, the annular inclusion is sleeved outside the outer sheath, an opening is formed in the side wall of the annular inclusion, the opening penetrates through two ends of the annular inclusion in the axial direction, the first connecting boss and the second connecting boss are respectively arranged at the opening of the annular inclusion, and the first connecting boss and the second connecting boss are connected through a buckle.

3. The battery high voltage cable of claim 2, wherein: the first connecting boss is provided with a buckle, the second connecting boss is provided with a clamping groove, and the buckle is arranged in the clamping groove.

4. A battery high voltage cable according to claim 3, characterized in that: the annular inclusion, the first connecting boss, the second connecting boss and the buckle are made of polyurethane rubber.

5. The battery high voltage cable of claim 1, wherein: the outer sheath is made of polyethylene.

6. The battery high voltage cable of claim 1, wherein: the shielding layer is a metal net layer.

7. The battery high voltage cable of claim 1, wherein: the inner sheath is made of polyethylene.

8. The battery high voltage cable of claim 1, wherein: the material of inside enhancement core is EVA foam.

9. The battery high voltage cable of claim 1, wherein: the cross sections of the outer sheath, the shielding layer, the plastic water-blocking tape and the inner sheath are circular, the cross section of the inner reinforcing core is circular, and the outer sheath, the shielding layer, the plastic water-blocking tape, the inner sheath and the inner reinforcing core are concentrically arranged.

10. The battery high voltage cable of claim 9, wherein: the plurality of cables are arranged in an annular array by taking the center of the inner reinforcing core as the center, and the cables are contacted with the inner wall of the inner sheath and the outer wall of the inner reinforcing core.