CN216212490U

CN216212490U - Low-temperature-resistant flame-retardant wire cable

Info

Publication number: CN216212490U
Application number: CN202122411765.2U
Authority: CN
Inventors: 冯明义; 孙名友; 贾耀磊
Original assignee: Shandong Yanggu Dongfang Cable Co ltd
Current assignee: Shandong Yanggu Dongfang Cable Co ltd
Priority date: 2021-10-08
Filing date: 2021-10-08
Publication date: 2022-04-05
Anticipated expiration: 2031-10-08

Abstract

The utility model discloses a low-temperature resistant flame-retardant wire and cable, belonging to the technical field of wire and cable, the technical scheme key points of the utility model comprise a cable body, an inner flame-retardant layer and an outer flame-retardant layer have high-temperature resistant, low heat conductivity coefficient and high-temperature insulating property, thus achieving the purpose of flame-retarding a conductor and the cable body, the inner insulating layer and the outer insulating layer can play the role of insulating the conductor and the cable body, thereby improving the insulating capability of the cable body and reducing the probability of electric shock accidents, the fireproof performance of the cable body can be improved through the low-temperature resistant and high-temperature resistant layer, the cable body is prevented from burning due to external overheating, specifically, when the cable body is heated, an elastic ball is heated to expand, thereby extruding an elastic arc sheet to deform the elastic arc sheet, thereby avoiding the damage of the cable body due to overhigh temperature, simultaneously increasing the overall strength of the cable body and increasing the tensile resistance of the cable body, the high and low temperature resistance of the composite material can be effectively improved through the filling layer.

Description

Low-temperature-resistant flame-retardant wire cable

Technical Field

The utility model relates to the technical field of wires and cables, in particular to a low-temperature-resistant flame-retardant wire and cable.

Background

The wire and cable is used for transmitting electromagnetic energy, information and wire products for realizing electromagnetic energy conversion, the generalized wire and cable is also referred to as cable for short, the limited cable is insulated cable, which can be defined as an aggregate consisting of one or more insulated wire cores and a coating layer, a total protection layer and an outer protection layer which may be arranged on the insulated wire and cable, the cable also can be provided with an additional conductor without insulation for transmitting electromagnetic energy, information and wire products for realizing electromagnetic energy conversion, the generalized wire and cable is also referred to as cable for short, and the limited cable is insulated cable.

However, the existing electric wire and cable cannot resist high and low temperatures, and under the condition that the temperature is too high or too low, the electric wire and cable are easy to damage, so that the electric wire and cable cannot be used, and meanwhile, the pressure resistance of the electric wire and cable is weaker, and once the electric wire and cable is influenced by external force, the electric wire and cable are easy to damage.

SUMMERY OF THE UTILITY MODEL

The utility model provides a low-temperature-resistant and flame-retardant wire and cable aiming at the problems to solve the problems.

The utility model relates to a low-temperature-resistant and flame-retardant electric wire and cable, which comprises a cable body, wherein a cable core is arranged inside the cable body, five conductors which are distributed in an annular shape are arranged inside the cable core, the outer walls of the five conductors are fixedly connected with an inner flame-retardant layer and an inner insulating layer in sequence, the outer wall of the cable core is fixedly connected with an outer flame-retardant layer, an outer insulating layer, a heat-insulating layer and a low-temperature-resistant layer in sequence from inside to outside, a plurality of elastic balls which are uniformly distributed in an annular shape are arranged inside the low-temperature-resistant layer, and one side of each elastic ball, which is far away from the heat-insulating layer, is provided with an elastic arc sheet.

In order to improve the high and low temperature resistance of the cable body, the low temperature resistant flame retardant electric wire and cable of the utility model is preferable, and the inside of the cable core is a filling layer.

In order to enhance the protection of the conductor, the low-temperature resistant and flame-retardant wire and cable of the utility model is preferable, and the outer walls of the five inner insulating layers are fixedly connected with the anti-pressure layer.

In order to protect the cable body, the low-temperature-resistant flame-retardant wire and cable is preferable, the outer wall of the cable body is fixedly connected with the outer sheath layer, and the inner wall of the outer sheath layer is fixedly connected with the outer wall of the low-temperature-resistant layer.

In order to reduce the influence of the external environment temperature on the cable body, the low-temperature-resistant flame-retardant wire and cable is preferable, and the heat-insulating cotton is filled in the filling layer.

In order to increase the bearing force of the elastic arc pieces, the low-temperature-resistant flame-retardant electric wire and cable of the utility model is preferable, and the reinforcing pieces are arranged inside the elastic arc pieces.

Compared with the prior art, the utility model has the beneficial effects that:

this kind of fire-retardant wire and cable of low temperature resistant, it has high temperature resistant through interior flame retardant coating and outer flame retardant coating, low and good high temperature insulating properties of coefficient of thermal conductivity, thereby can play the fire-retardant purpose to conductor and cable body, can play insulating effect to conductor and cable body through inner insulating layer and outer insulating layer, thereby improve the insulating ability of cable body, reduce the probability that the electric shock accident takes place, can improve the fire behavior of cable main part through low high temperature resistant layer, prevent that the cable body from burning because of outside overheat, when the cable body is heated specifically, the elastic ball is heated inflation, thereby extrude the elasticity arc piece, make the elasticity arc piece take place deformation, thereby can avoid leading to the damage of cable body because of the temperature is too high, and increased the bulk strength of cable body simultaneously, increase its anti-tensile ability.

Drawings

FIG. 1 is a structural diagram of a low-temperature resistant and flame-retardant electric wire and cable according to the present invention;

figure 2 is a block diagram of a cable core and conductor of the present invention;

FIG. 3 is a diagram of a low temperature resistant layer of the present invention.

In the figure, 1, a cable body; 2. a cable core; 201. a conductor; 202. an inner flame retardant layer; 203. an inner insulating layer; 204. a pressure resistant layer; 205. a filling layer; 3. an outer flame retardant layer; 4. an outer insulating layer; 5. a thermal insulation layer; 6. a low and high temperature resistant layer; 601. an elastic ball; 602. an elastic arc piece; 7. an outer jacket layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1-3, a low-temperature resistant and flame-retardant electric wire comprises a cable body 1, a cable core 2 is installed inside the cable body 1, five conductors 201 distributed in an annular shape are installed inside the cable core 2, an inner flame-retardant layer 202 and an inner insulating layer 203 are fixedly connected to outer walls of the five conductors 201 in sequence, an outer flame-retardant layer 3, an outer insulating layer 4, a heat-insulating layer 5 and a low-temperature resistant layer 6 are fixedly connected to outer walls of the cable core 2 from inside to outside in sequence, a plurality of elastic balls 601 distributed uniformly in an annular shape are installed inside the low-temperature resistant layer 6, and elastic arc pieces 602 are installed on one sides of the elastic balls 601 far away from the heat-insulating layer 5.

In this embodiment: have high temperature resistance through interior flame retardant coating 202 and outer flame retardant coating 3, the coefficient of thermal conductivity is low and good high temperature insulating properties, thereby can play the fire-retardant purpose to conductor 201 and cable body 1, can play insulating effect to conductor 201 and cable body 1 through interior insulating layer 203 and outer insulating layer 4, thereby improve cable body 1's insulating ability, reduce the probability that the electric shock accident takes place, can improve cable body's fire behavior through resistant low temperature layer 6, prevent that cable body 1 from burning because of outside overheat, when cable body 1 is heated specifically, elastic ball 601 thermal expansion, thereby extrude elastic arc piece 602, make elastic arc piece 602 take place deformation, thereby can avoid leading to cable body 1's damage because of the temperature is too high, and increased cable body 1's bulk strength simultaneously, increase its ability that it resists tearing.

As a technical optimization scheme of the present invention, the inside of the cable core 2 is the filling layer 205.

In this embodiment: the temperature loss of the cable body 1 can be reduced through the filling layer 205, and the high and low temperature resistance of the cable body is effectively improved.

As a technical optimization scheme of the utility model, the outer walls of the five inner insulating layers 203 are fixedly connected with the anti-pressure layers 204.

In this embodiment: the anti-pressure layer 204 can prevent external force from directly acting on the conductor 201, thereby enhancing the protection of the conductor 201.

As a technical optimization scheme of the utility model, the outer wall of the cable body 1 is fixedly connected with an outer sheath layer 7, and the inner wall of the outer sheath layer 7 is fixedly connected with the outer wall of the low-temperature resistant layer 6.

In this embodiment: the outer sheath layer 7 can be used for external protection, so that the cable body 1 is protected.

As a technical optimization scheme of the utility model, the filling layer 205 is filled with heat-insulating cotton.

In this embodiment: the influence of the external environment temperature on the cable body 1 can be effectively reduced through the heat insulation cotton.

As a technical optimization scheme of the present invention, a plurality of elastic arc pieces 602 are internally provided with a reinforcing piece.

In this embodiment: the bearing force of the elastic arc piece 602 can be increased by the reinforcing piece.

The working principle and the using process of the utility model are as follows: at first interior fire-retardant layer 202 and interior insulating layer 203 can play fire-retardant and insulating effect to conductor 201, outer fire-retardant layer 3 and outer insulating layer 4 can play fire-retardant insulating effect to cable body 1 simultaneously, thereby protection cable body 1 does not receive the damage, through the inside packing heat preservation cotton at cable core 2 can effectual reduction external environment temperature to cable body 1's influence, can improve the fire behavior of cable main part through resistant low high temperature layer 6 afterwards, prevent that cable body 1 from burning because of outside overheat, oversheath layer 7 can protect cable body 1 simultaneously.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a fire-retardant wire and cable of low temperature resistant, includes cable body (1), its characterized in that: the internally mounted of cable body (1) has cable core (2), the internally mounted of cable core (2) has five conductors (201) that are the annular and distribute, five the outer wall of conductor (201) is fire-retardant layer (202) and internal insulation layer (203) in fixedly connected with in proper order, the outer wall of cable core (2) is from interior to outer fixedly connected with outer fire-retardant layer (3), external insulation layer (4) and insulating layer (5) and low temperature resistant layer (6) in proper order, the internally mounted of low temperature resistant layer (6) has a plurality of elastic balls (601) that are annular evenly distributed, and is a plurality of elastic arc piece (602) are all installed to one side that insulating layer (5) were kept away from in elastic balls (601).

2. The low-temperature-resistant flame-retardant electric wire and cable according to claim 1, wherein: the inside of the cable core (2) is a filling layer (205).

3. The low-temperature-resistant flame-retardant electric wire and cable according to claim 1, wherein: the outer walls of the five inner insulating layers (203) are fixedly connected with pressure resistant layers (204).

4. The low-temperature-resistant flame-retardant electric wire and cable according to claim 1, wherein: the cable comprises a cable body (1) and is characterized in that an outer wall of the cable body (1) is fixedly connected with an outer sheath layer (7), and the inner wall of the outer sheath layer (7) is fixedly connected with the outer wall of a low-temperature resistant layer (6).

5. The low-temperature-resistant flame-retardant electric wire and cable according to claim 2, wherein: the filling layer (205) is filled with heat insulation cotton.

6. The low-temperature-resistant flame-retardant electric wire and cable according to claim 1, wherein: reinforcing plates are arranged inside the elastic arc plates (602).