CN207868564U - High temperature flame retardant power cord - Google Patents

Abstract

The utility model relates to the field of power lines, in particular to a high temperature resistant and flame retardant power line, which comprises a plug connected with a power supply, a joint connected with electric equipment, a line body connecting the plug and the joint, a first protective sleeve positioned at the joint of the line body and the plug and coated outside the line body, and a second protective sleeve positioned at the joint of the line body and the joint and coated outside the line body; the cable body comprises four cable cores, an inner protection layer and an outer protection layer, the four cable cores are of a same-direction twisting structure, each cable core comprises three conductors, each conductor is formed by twisting a plurality of copper wires, the inner protection layer is made of epoxy resin materials, the outer protection layer is sequentially made of a flame-retardant layer, a high-temperature-resistant layer, an insulating layer and a shielding layer from outside to inside, and ceramic fiber materials are filled between the shielding layer and the cable cores. The utility model provides a high temperature resistant fire-retardant power cord that high temperature resistant fire-retardant ability is strong, safety, long service life.

Description

High temperature flame retardant power cord

technical field

The utility model relates to the field of power cords, in particular to a high-temperature-resistant and flame-retardant power cord.

Background technique

Although the wire and cable industry is only a supporting industry, it accounts for 1/4 of the output value of China's electrical industry. It has a wide variety of products and a wide range of applications, involving industries such as electric power, construction, communications, and manufacturing, and is closely related to various sectors of the national economy. Wires and cables are also known as the "arteries" and "nerves" of the national economy. They are indispensable basic equipment for transmitting electric energy, transmitting information, manufacturing various motors, instruments, and meters, and realizing electromagnetic energy conversion. necessary basic products in a modernized society.

The current power cord generally only has a wire core and an insulating layer, which is formed by melting the insulating layer and then combining with the wire core, and then cooling; its high temperature resistance is poor, and the insulating layer is easy to age and detach, so that the wire core loses The protection of the insulation layer causes unsafe factors such as leakage and fire, and the replacement and maintenance of the power cord increases the corresponding costs, which causes great inconvenience to life and production.

Utility model content

In order to solve the above problems, the utility model provides a high-temperature-resistant and flame-retardant power cord with strong high-temperature resistance and flame-retardant ability, safety and long service life.

The utility model adopts the following technical scheme: a high temperature resistant and flame retardant power cord, including a plug connected to the power supply, a joint connected to the electrical equipment, a line body connecting the plug and the joint, and a wire body located at the connection between the line body and the plug and wrapped The first protective sheath covering the outside of the wire body, the second protective sheath located at the connection between the wire body and the joint and covering the outside of the wire body; the wire body includes four wire cores, an inner protective layer and an outer protective layer, four The cores are twisted in the same direction, and the cores include three conductors, the conductors are twisted from several copper wires, the inner protective layer is made of epoxy resin material, and the outer protective layer is formed from From outside to inside, there are flame retardant layer, high temperature resistant layer, insulating layer and shielding layer in sequence, and ceramic fiber material is filled between the shielding layer and the core.

A further improvement to the above technical solution is that the flame-retardant layer is a low-smoke halogen-free cross-linked polyethylene flame-retardant layer.

A further improvement to the above technical solution is that the high temperature resistant layer is a methyl vinyl silicone rubber layer.

A further improvement to the above technical solution is that the shielding layer is a diamond-shaped mesh structure braided by tinned copper wires.

The beneficial effects of the utility model are:

1. The first protective sleeve located at the connection between the wire body and the plug and the second protective sleeve located at the connection between the wire body and the connector. The connection between the wire body and the plug and the connector is often damaged due to twisting and other reasons. The internal conductor is prone to electric shock hazard after being exposed to water. By setting the first protective cover and the second protective cover, it can protect the connection of the wire body, improve the overall mechanical strength of the wire body, prevent the wire body from breaking, and prolong its service life. , to reduce potential safety hazards; the wire body is composed of four wire cores, an inner protective layer and an outer protective layer. The stranding of the wire cores is stable and firm, reducing the volume, preventing the wire cores from being scattered and affecting the internal structure. The four wire cores each contain three conductors. The conductors are twisted by several copper wires, and the inner protective layer is made of epoxy resin. Material, epoxy resin has the characteristics of high insulation performance and high structural strength, which enhances the insulation performance of the utility model and effectively improves its service life. Ceramic fiber materials are filled between the outer protective layer and the wire core to improve insulation performance and external protection. The layer includes a flame-retardant layer, a high-temperature-resistant layer, an insulating layer, and a shielding layer. The four sets of material layers are coaxial cladding structures, and the structure is set reasonably, which not only ensures the high-temperature-resistant flame-retardant performance of the utility model, but also resists electromagnetic interference. The product competitiveness of the utility model is improved.

2. The flame-retardant layer is a low-smoke halogen-free cross-linked polyethylene flame-retardant layer, which has excellent flame-retardant performance and good safety. When burning, the smoke is small, and no corrosive gas escapes, which reduces the damage to people and equipment. .

3. The high temperature resistant layer is made of methyl vinyl silicone rubber material, which has high and low temperature resistance and aging resistance. It can work for a long time at -50 ° C ~ 250 ° C, and has a wide range of applications.

4. The shielding layer is a diamond-shaped mesh structure woven by tinned copper wires, which is conducive to resisting interference such as electromagnetic induction and poor grounding.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic cross-sectional view of the wire body of the present invention.

Fig. 3 is a schematic structural diagram of the shielding layer of the present invention.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings.

As shown in Fig. 1, Fig. 2 and Fig. 3, the high temperature and flame retardant power cord 100 is characterized in that it includes a plug 110 connected to the power supply, a connector 120 connected to the electrical equipment, and a wire connecting the plug 110 and the connector 120 The body 130 also includes a first protective cover 140 located at the connection between the line body 130 and the plug 110 and covering the outside of the line body 130 , and a second protective cover 140 located at the connection between the line body 130 and the connector 120 and covering the outside of the line body 130 Cover 150; the wire body 130 includes four wire cores 131, an inner protective layer 132 and an outer protective layer 133, the four wire cores 131 are twisted in the same direction, and the wire core 131 includes three conductors 134, so The conductor 134 is twisted by several copper wires, the inner protective layer 132 is made of epoxy resin material, and the outer protective layer 133 includes a flame retardant layer 133d, a high temperature resistant layer 133c, an insulating layer 133b, and a shielding layer 133a. The inside of the flame retardant layer 133d is a high temperature resistant layer 133c, the inside of the high temperature resistant layer 133c is an insulating layer 133b, the inside of the insulating layer 133b is a shielding layer 133a, and the filling between the shielding layer 133a and the core 131 is There are ceramic fiber materials 135 .

The flame retardant layer 133d is a low-smoke halogen-free cross-linked polyethylene flame retardant layer 133d, which has excellent flame retardant performance, good safety, low smoke when burning, no corrosive gas escape, and reduced damage to people and equipment .

The high temperature resistant layer 133c is made of methyl vinyl silicone rubber material, which has high and low temperature resistance and aging resistance, and can work for a long time at -50°C~250°C, and has a wide range of applications.

The shielding layer 133a is a diamond-shaped mesh structure a woven by tinned copper wires, which is beneficial to resist electromagnetic induction, poor grounding and other interferences.

The first protective sleeve 140 located at the connection between the wire body 130 and the plug 110 and the second protective sleeve 150 located at the connection between the wire body 130 and the connector 120, the connection between the wire body 130 and the plug 110 and the connector 120 is often due to twisting and other reasons, The connection is prone to damage, exposing the internal conductor 134, and it is prone to electric shock hazards after being exposed to water. By setting the first protective cover 140 and the second protective cover 150, the connection of the line body 130 is protected, and the overall performance of the line body 130 is improved. Mechanical strength prevents the wire body 130 from breaking, prolongs its service life, and reduces potential safety hazards; the wire body 130 is composed of four wire cores 131, an inner protective layer 132 and an outer protective layer 133, and the overall structure design is reasonable, safe, and high temperature resistant Good flame retardant performance, the four wire cores 131 are twisted in the same direction, the four wire cores 131 are twisted stably and firmly, reducing the volume, preventing the wire cores 131 from being scattered and affecting the internal structure, and the four wire cores 131 each contain three Conductor 134, conductor 134 is formed by twisting several copper wires, and inner protection layer 132 adopts epoxy resin material, and epoxy resin has characteristics such as high insulating performance, structural strength, strengthens the insulating performance of the present utility model, effectively improves Its service life is filled with ceramic fiber materials between the outer protective layer 133 and the core 131 to improve insulation performance. The outer protective layer 133 includes a flame retardant layer 133d, a high temperature resistant layer 133c, an insulating layer 133b, and a shielding layer 133a. Four groups of materials The layer is a coaxial cladding structure, and the structure setting is reasonable, which not only ensures the high temperature resistance and flame retardant performance of the utility model, but also can resist electromagnetic interference, and improves the product competitiveness of the utility model.

The above-mentioned embodiments only express several implementations of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (4)

1. the power cord of heat-resistant fireproof, it is characterised in that：Including being connected to the plug of power supply, being connected to connecing for electrical equipment The wire body of head, connection plug and connector further includes the first protection for being located at wire body and plug junction and being coated on outside wire body Set, positioned at wire body and joint and the second protective case for being coated on outside wire body；The wire body includes four cores, interior guarantor Sheath and external protection, four cores are lay configuration in the same direction, and the core includes three conductors, and the conductor is by several Root copper wire is twisted, the inner protective layer use epoxide resin material, the external protection be followed successively by from outside to inside flame-retardant layer, High-temperature-resistant layer, insulating layer, shielded layer are filled with ceramic fibre material between the shielded layer and core.

2. the power cord of heat-resistant fireproof according to claim 1, it is characterised in that：The flame-retardant layer is handed over for low smoke and zero halogen Join polyethylene anti-flaming layer.

3. the power cord of heat-resistant fireproof according to claim 1, it is characterised in that：The high-temperature-resistant layer is ethylene methacrylic Silastic-layer.

4. the power cord of heat-resistant fireproof according to claim 1, it is characterised in that：The shielded layer is compiled for tinned copper wire The diamond-mesh structure being made into.