CN206672679U - Wire and cable for a box - Google Patents

Abstract

The utility model discloses a wire and cable for a box, comprising a plurality of groups of insulating core wires, wherein the insulating core wires comprise a plurality of groups of core wires, a metal shielding layer is arranged on the outside of the plurality of groups of core wires, and each of the core wires is composed of a conductor and an insulator coated on the outside of the conductor; in addition, a wrapping layer is arranged on the outside of each group of insulating core wires, and the outer sides of the plurality of groups of wrapping layers are sequentially coated with an inner protective layer and an outer protective layer, wherein the wrapping layer is composed of an aluminized polyester film, a tinned soft copper wire braid and a non-woven fabric, wherein the aluminized polyester film, the tinned soft copper wire braid and the non-woven fabric are sequentially coated from the inside to the outside. The beneficial effects are: enhancing the flexibility of the wire and cable, effectively improving the bending resistance problem of the existing wire and cable, improving the corrosion resistance and high temperature resistance of the wire and cable, and enhancing the tensile strength of the entire cable.

Description

Wire and cable for a box

technical field

The utility model relates to the technical field of wires and cables, in particular to a wire and cable for a box.

Background technique

At present, the existing wires and cables for teaching boxes generally use PVC or polyurethane to form protective sleeves to protect the conductors in the wires and cables. Although this structure can protect the wires and cables to a certain extent, it is The wires and cables of this structure are either too soft or too hard when used, lack of elasticity and rigidity, and cannot meet the needs of practical applications. Moreover, this traditional structure is prone to chemical reactions such as hydrolysis in a high-temperature and high-humidity environment, resulting in damage to the wire and cable, thereby bringing safety hazards to the use of the wire and cable.

Aiming at the problems in the related technologies, no effective solution has been proposed yet.

Utility model content

The purpose of this utility model is to propose a wire and cable for a box, so as to overcome the above-mentioned technical problems existing in the related art.

The technical scheme of the utility model is achieved in that:

A wire and cable for a box, comprising several groups of insulated core wires, the insulated core wires include several groups of core wires, the outer sides of the several groups of core wires are provided with metal shielding layers, and each of the core wires is composed of a conductor and Insulators covering the outside of the conductor; in addition, each group of insulated core wires is provided with a wrapping layer on the outside, and the outer sides of several groups of wrapping layers are sequentially covered with an inner protective layer and an outer protective layer. The wrapping layer It is composed of aluminized polyester film, tinned annealed copper wire braiding and non-woven fabric, wherein the aluminized polyester film, the tinned annealed copper wire braiding and non-woven fabric are sequentially covered and arranged from inside to outside.

The beneficial effects of the above-mentioned technical scheme of the utility model are: by adopting the wrapping layer composed of aluminized polyester film, tinned annealed copper wire braiding and non-woven fabric, the wire and cable have excellent folding resistance, good toughness and good Anti-corrosion performance, prevent the cable from being damaged, and ensure the safe use of the cable. In addition, the double-layer protective structure can further improve the wear resistance and corrosion resistance of the wire and cable.

Further, in the wrapping layer, between the several sets of insulating core wires and in the inner protective layer, a filling layer is arranged between the several sets of wrapping layers, and the filling layer is metal fiber wire.

The beneficial effects of the above-mentioned technical solution of the utility model are: the stability of the cable core of the cable can be ensured through the filling layer, and the circular shaping of the cable can be ensured at the same time; Lightweight, longer service life than traditional materials, and also has corrosion resistance and high temperature resistance.

Further, a flame-retardant layer is provided on the inner side of the inner protective layer, and a heat-sensitive color-changing layer is also provided between the inner protective layer and the flame-retardant layer.

The beneficial effect of the above-mentioned technical solution of the utility model is: the fire resistance of the wire and cable can be effectively improved by setting the flame-retardant layer, and the safe use of the wire and cable can be ensured. The mica refractory material can be selected as the material of the flame-retardant layer. According to the color of the heat-sensitive color-changing layer, the temperature change inside the wire and cable can be understood, so that when the surface temperature of the cable is too high due to a short circuit or other fault, the power supply can be quickly cut off to ensure the safety of use.

Further, the inner protective layer and the outer protective layer are provided with an observation window for observing the heat-sensitive discoloration layer, the observation window is made of a transparent PU film, the inner protective layer is a non-woven fabric, and the outer protective layer The protective layer is a PU leather sheath, the conductors include 26AWG conductors and/or 24AWG conductors, and the insulators include HDPE insulators and TPEE insulators.

The beneficial effect of the above-mentioned technical solution of the utility model is: by setting the observation window on the inner protective layer and the outer protective layer, and the observation window is made of a transparent PU film, the color change of the heat-sensitive color-changing layer can be clearly observed, so that at any time Understand temperature changes inside wire and cable.

To sum up, the beneficial effects of the utility model are: enhancing the flexibility of wires and cables, effectively improving the bending resistance of existing wires and cables, improving the performance of corrosion resistance and high temperature resistance of wires and cables, and enhancing the flexibility of the entire wire and cable. of tensile capacity.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only the present invention. For some embodiments of the present invention, those of ordinary skill in the art can also obtain other drawings based on these drawings on the premise of not paying creative efforts.

Fig. 1 is a schematic structural view of a wire and cable for a box according to an embodiment of the present invention;

Fig. 2 is a schematic structural view of the core wire according to an embodiment of the present invention;

Fig. 3 is a side view of the wire and cable for the box according to the embodiment of the present invention.

In the picture:

1. Metal shielding layer; 2. Conductor; 3. Insulator; 4. Inner protective layer; 5. Outer protective layer; 6. Aluminum-plated polyester film; 7. Tinned annealed copper wire braiding; 8. Non-woven fabric; 9. Filling layer; 10, flame retardant layer; 11, heat-sensitive color-changing layer; 12, observation window.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

According to an embodiment of the utility model, a wire and cable for a box is provided.

As shown in Figure 1, the wire and cable for box according to the embodiment of the present invention includes several groups of insulated core wires, the insulated core wires include several groups of core wires, and the outer sides of the several groups of core wires are provided with metal shielding layer 1, and each of the core wires is composed of a conductor 2 and an insulator 3 covering the outside of the conductor; in addition, each group of insulated core wires is provided with a wrapping layer on the outside, and several groups of wrapping layers are wound on the outside in turn Covered with an inner protective layer 4 and an outer protective layer 5, the wrapping layer is made of aluminized polyester film 6, tinned annealed copper wire braiding 7 and non-woven fabric 8, wherein the aluminized polyester film 6, the The tinned annealed copper wire group 7 and the non-woven fabric 8 are sequentially covered and arranged from the inside to the outside.

With the help of the above technical scheme, the wire and cable have excellent folding resistance, good toughness and good corrosion resistance by using aluminized polyester film, tinned annealed copper wire braiding and non-woven fabric to prevent If the cable is damaged, ensure the safety of the cable. In addition, the double-layer protective structure can further improve the wear resistance and corrosion resistance of the wire and cable.

In addition, in one embodiment, in order to ensure the circular shape of the cable, gaps will be generated during the process of twisting the insulating core wires into a cable, so that the cable core of the wire and cable will be unstable. In the wrapping layer, the Filling layers 9 are provided between several groups of insulating core wires and in the inner protective layer 4 , and between the several groups of wrapping layers.

In specific applications, for the filling layer 9, metal fiber wires can be used for filling. Metal fiber wires can effectively improve the tensile capacity of the cable, and also have the function of radiation protection, light weight, and longer service life than traditional materials. Long, also has corrosion resistance, high temperature performance.

In addition, in order to improve the fire resistance of the wire and cable, a flame retardant layer 10 is provided inside the inner protective layer 4, and mica refractory material can be used as the material of the flame retardant layer.

In addition, in order to facilitate the understanding of the temperature change inside the wire and cable, a heat-sensitive color-changing layer 11 can be provided between the inner protective layer 4 and the flame-retardant layer 10. In order to facilitate the observation of the color change of the heat-sensitive color-changing layer 11 On the inner protective layer 4 and the outer protective layer 5, an observation window 12 for observing the heat-sensitive color-changing layer is set, and the observation window 12 is made of a transparent PU film, so that heat can be seen through the observation window. The color of the color-sensitive layer 11 changes, so that the temperature change of the surface of the wire and cable can be known at any time, so that the power can be cut off quickly when the surface temperature of the cable is too high due to a fault such as a short circuit, so as to ensure safe use.

Specifically, in one embodiment, the inner protective layer 4 is a non-woven fabric, the outer protective layer 5 is a PU leather sheath, the conductor 2 includes a 26AWG conductor and/or a 24AWG conductor, and the insulator 3 includes an HDPE insulator and TPEE insulator.

To sum up, with the help of the above-mentioned technical solution of the utility model, the flexibility of the wire and cable is enhanced, the bending resistance of the existing wire and cable is effectively improved, the corrosion resistance and high temperature resistance of the wire and cable are improved, and the whole wire and cable are enhanced. The tensile strength of the cable.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (8)

1. A wire and cable for a box, characterized in that it comprises several groups of insulated core wires, the insulated core wires comprise several groups of core wires, the outer sides of the several groups of core wires are provided with a metal shielding layer (1), and, Each of the core wires is composed of a conductor (2) and an insulator (3) covering the outside of the conductor; in addition, each group of insulated core wires is provided with a wrapping layer on the outside, and the outer sides of several groups of wrapping layers are wrapped in turn. Covered with an inner protective layer (4) and an outer protective layer (5), the wrapping layer is composed of aluminized polyester film (6), tinned annealed copper wire braiding (7) and non-woven fabric (8), wherein the The aluminized polyester film (6), the tinned annealed copper wire braid (7) and the non-woven fabric (8) are sequentially covered and arranged from inside to outside. 2. The wire and cable for box according to claim 1, characterized in that, in the wrapping layer, between the several groups of insulated core wires and in the inner protective layer (4), the several Filling layers (9) are arranged between the winding cladding layers. 3. The electric wire and cable for box according to claim 2, characterized in that, the filling layer (9) is metal fiber. 4. The wire and cable for box according to claim 1, characterized in that it further comprises a flame retardant layer (10), and the flame retardant layer (10) is arranged inside the inner protective layer (4). 5. The electric wire and cable for box according to claim 4, characterized in that it further comprises a heat-sensitive color-changing layer (11), and the heat-sensitive color-changing layer (11) is arranged between the flame-retardant layer (10) and the An observation window (12) for observing the thermosensitive color-changing layer is arranged between the inner protective layer (4), and on the inner protective layer (4) and the outer protective layer (5). 6. The electric wire and cable for box according to claim 5, characterized in that, the observation window (12) is made of a transparent PU film. 7. The electric wire and cable for box according to any one of claims 1-6, characterized in that, the conductors include 26AWG conductors and/or 24AWG conductors, and the insulators include HDPE insulators and/or TPEE insulators. 8. The electric wire and cable for box according to any one of claims 1-6, characterized in that, the inner protective layer (4) is non-woven fabric, and the outer protective layer (5) is a PU leather sheath.