CN211427889U

CN211427889U - Low-smoke halogen-free cross-linked three-core cable

Info

Publication number: CN211427889U
Application number: CN202020097634.4U
Authority: CN
Inventors: 刘志红; 刘晓鹏
Original assignee: Shijiazhuang Opel Cable Co ltd
Current assignee: Shijiazhuang Dingniu Cable Co.,Ltd.
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2020-09-04
Anticipated expiration: 2030-01-16

Abstract

The utility model relates to a low smoke and zero halogen crosslinked three-core cable, including three sinle silk, set up at the outside inner sheath of three sinle silk respectively and with the oversheath that three sinle silk was enclosed together, the inner sheath sets up the circular sheath to low smoke and zero halogen crosslinked plastic material, the oversheath sets up the annular sheath to low smoke and zero halogen crosslinked plastic material, the oversheath laminating is in the outside of three inner sheath, the thickness of oversheath is less than the thickness of inner sheath, and is three the inner sheath is triangular distribution or the axis sets up on the coplanar. The utility model discloses a cable course of working is simple, has higher structural strength and security, and is refractiveness and high temperature resistance can be high, long service life.

Description

Low-smoke halogen-free cross-linked three-core cable

Technical Field

The utility model belongs to the technical field of the technique of cable and specifically relates to a low smoke and zero halogen crosslinked three-core cable is related to.

Background

The low-voltage cable is composed of a wire core, an insulating layer and a protective layer. The wire core is used for conducting current and is generally formed by stranding a plurality of copper wires or a plurality of aluminum wires. The low-voltage cable comprises a single core, a double core, a three core, a four core and the like. The two-core cable is used for a single-phase line, and the three-core cable and the four-core cable are respectively used for a three-phase three-wire system line and a three-phase four-wire system line. The three-core cable comprises a live wire, a zero wire and a ground wire, is commonly used in household circuits and is used as a power line of household appliances, so that the three-core cable has higher requirements on safety and durability.

Chinese patent with publication number CN204632351U discloses a three-core cable, which comprises an outer covering layer, a first cable, a second cable, and a third cable, wherein the first cable, the second cable, and the third cable are disposed in the outer covering layer, hose protection layers are disposed in the outer covering layer corresponding to the first cable, the second cable, and the third cable, respectively, and the first cable, the second cable, and the third cable are disposed in the hose protection layer, respectively, and there are three hose protection layers.

The above prior art solutions have the following drawbacks: the three-core cable is complex in structure, multi-step processing is required in the production process, and stripping of the outer layer is troublesome when the cable is connected.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a low smoke and zero halogen crosslinked three-core cable, the course of working is simple, has higher structural strength and security, and is fire-resistant and high temperature resistance can be high, long service life.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a low smoke and zero halogen crosslinked three-core cable, includes three sinle silk, sets up the oversheath that is in the same place at the outside inner sheath of three sinle silk and with three sinle silk core respectively, the inner sheath sets up the circular cover to low smoke and zero halogen crosslinked plastic material, the oversheath sets up the annular cover to low smoke and zero halogen crosslinked plastic material or irradiation rubber material.

Through adopting above-mentioned technical scheme, low smoke and zero halogen crosslinked plastic is adopted as the inner sheath in the outside of sinle silk, the inner sheath wraps the sinle silk completely, play the first layer guard action, the three sinle silk outside is fixed the integration together by the oversheath of low smoke and zero halogen crosslinked plastic material again, two-layer sheath is protected, the structural strength of cable has been strengthened, and two-layer low smoke and zero halogen crosslinked plastic, the whole refractiveness and the high temperature resistance that has promoted the cable, the ageing resistance of cable has also obtained showing the reinforcing simultaneously, life has obtained great extension, the security is guaranteed, three sinle silk and inner sheath simultaneous processing are in the same place, the course of working has been simplified, the processing degree of difficulty has been reduced.

The present invention may be further configured in a preferred embodiment as: and the three inner sheaths are in a parallel structure formed by injection molding at one time.

Through adopting above-mentioned technical scheme, the inner sheath adopts one shot forming's structure, has simplified the production step of cable, has guaranteed the connection compactness between the three sinle silk, has strengthened the overall structure intensity of inner sheath.

The present invention may be further configured in a preferred embodiment as: the axis of three inner sheaths sets up on the coplanar, and the dividing groove has all been seted up to the connection face both sides of two adjacent inner sheaths.

Through adopting above-mentioned technical scheme, three inner sheath is located the coplanar, has reduced the whole thickness of cable, and the cable is when as the domestic appliance power cord, changes to accomodate and lay wire, and the setting of dividing the grooving is also convenient to be separated each sinle silk of cable.

The present invention may be further configured in a preferred embodiment as: and the thickness of partial inner sheath structures on two sides of the connecting surface of the inner sheath is greater than that of the rest side surfaces of the inner sheath.

Through adopting above-mentioned technical scheme, when every inner sheath cuts, can not hurt the sinle silk, the inner sheath has sufficient thickness protection sinle silk in incision department.

The present invention may be further configured in a preferred embodiment as: the outer sheaths are attached to the outer sides of the three inner sheaths, and the thickness of the outer sheaths is smaller than that of the inner sheaths.

Through adopting above-mentioned technical scheme, reduced the holistic cross-section size of cable, can save material, reduce the hardness of cable simultaneously.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the utility model discloses a cable adopts two-layer sheath to protect the sinle silk, and inner sheath protection sinle silk, the three inner sheath of oversheath protection have strengthened the guard action to the sinle silk, and two-layer sheath all adopts low smoke and zero halogen crosslinked plastics, makes the refractiveness and the high temperature resistance of whole cable all promote greatly, and ageing-resistant performance is good, long service life.

2. The three inner sheaths of cable adopt one shot forming's mode of production, have guaranteed the joint strength of three inner sheath, reduce the production degree of difficulty, make three inner sheath keep the parallelism, have guaranteed the processingquality of cable.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

In the figure, 1, a wire core, 2, an inner sheath, 23, a slitting groove, 3 and an outer sheath.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a low smoke and zero halogen crosslinked three-core cable, including sinle silk 1, set up at the outside inner sheath 2 of three sinle silk 1 and the oversheath 3 of wrapping three sinle silk 1 together respectively, sinle silk 1 is formed by the coiling of stranded copper wire or aluminum wire, inner sheath 2 sets up to the circular cover of low smoke and zero halogen crosslinked plastic material, wrap and keep apart three sinle silk 1 respectively, oversheath 3 sets up to the annular cover of low smoke and zero halogen crosslinked plastic or irradiation rubber, wrap the combination of three sinle silks 1 of group and inner sheath 2 together, become a complete cable structure.

Referring to fig. 1, three inner sheath 2 is injection moulding's parallel structure in this embodiment, and the axis of three inner sheath 2 sets up on the coplanar, and three sinle silk 1 sets up side by side promptly, has reduced the whole thickness of cable, and the cable is when as the domestic appliance power cord, changes and accomodates and the wiring. Dividing grooves 23 are formed in two sides of the connecting surface of each two adjacent inner sheaths 2, and each wire core 1 of the cable can be conveniently separated through the dividing grooves 23. When cutting inner sheath 2, in order to guarantee that inner sheath 2 has sufficient thickness protection sinle silk 1, inner sheath 2 is connected partial inner sheath 2 structure thickness of face both sides and is greater than the thickness of the all the other sides of inner sheath 2, when every inner sheath 2 cuts, can not injure sinle silk 1.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A low smoke and zero halogen crosslinked three-core cable is characterized in that: the cable comprises cable cores (1), an inner sheath (2) and an outer sheath (3), wherein the inner sheath (2) is arranged outside the three cable cores (1) respectively, the outer sheath (3) wraps the three cable cores (1) together, the inner sheath (2) is a circular sheath made of low-smoke halogen-free crosslinked plastic materials, and the outer sheath (3) is an annular sheath made of low-smoke halogen-free crosslinked plastic materials or irradiated rubber materials; it is three inner sheath (2) are injection moulding's parallel structure, three on the axis setting coplanar of inner sheath (2), dividing groove (23) have all been seted up to the connection face both sides of two adjacent inner sheaths (2).

2. The low smoke zero halogen crosslinked three-core cable according to claim 1, characterized in that: the structural thickness of partial inner sheaths (2) on two sides of the connecting surface of the inner sheath (2) is larger than that of the rest sides of the inner sheath (2).

3. The low smoke zero halogen crosslinked three-core cable according to claim 1, characterized in that: the outer sheath (3) is attached to the outer sides of the three inner sheaths (2), and the thickness of the outer sheath (3) is smaller than that of the inner sheaths (2).