CN202495270U - Computer flexible cable with flame retardant polyolefin insulation elastomer rubber sheath - Google Patents

Abstract

The utility model discloses a flexible cable for a computer with a flame-retardant polyolefin insulated elastic body rubber sheath, which comprises several conductor groups, and the several conductor groups are formed by twisting two soft copper conductors wrapped with an insulating layer and a reinforcing core. Several conductor groups are wrapped with an inner tape layer and a sub-shield layer in turn, and several conductor groups wrapped with a sub-shield layer are twisted with the filling tape to form a cable core with a circular cross-section, and the cable core is wrapped with a middle tape layer in turn. , The total shielding layer, the outer tape layer, the sheath layer of elastomer rubber material. The structure design of the utility model is simple and reasonable. The conductor group is formed by twisting the insulated wire core and the reinforcing core. At the same time, the inner, middle and outer wrapping layers are used, and the middle layer is longitudinally wrapped, so that the cable has good flame retardancy, low smoke and halogen, environmental protection, Good heat resistance, aging resistance, anti-electromagnetic interference, soft and easy to lay and other characteristics.

Description

A kind of flexible cable for computer with flame retardant polyolefin insulation elastomer rubber sheath

Technical field:

The utility model relates to a computer cable, in particular to a flexible cable for a computer with a flame-retardant polyolefin insulation elastomer rubber sheath.

Background technique:

With the wide application of information network and automation control technology, as the core computer of equipment control, it has been widely used in all walks of life in the national economy. Because the vast majority of its use environment is indoors, cables for computer connection control The environmental protection performance of the materials used has been paid more and more attention by people. Low-smoke, halogen-free, and flame-retardant polyolefin materials have good environmental protection performance. When burning, no halogen acid gas is released, the release of toxic and corrosive gases is rare, and the smoke concentration produced is low. It has a good application prospect as the insulation or sheath material of cables.

The structural strength of the insulated wire core of the original conductor group cannot meet the requirements of the actual working environment, which affects the service life of the cable.

Utility model content:

In view of the existing technical problems, the purpose of this utility model is to provide a flexible cable for computers with a flame-retardant polyolefin insulated elastomer rubber sheath, which has good flame-retardant performance, low-smoke and halogen-free, environmental protection, good heat resistance, and aging resistance , anti-electromagnetic interference, soft and easy to lay and a series of excellent characteristics, suitable for high-rise buildings, ships, oil and gas platforms and other closed places.

The technical scheme of the utility model is as follows:

The flame-retardant polyolefin insulated elastic body rubber sheathed flexible cable for computers includes several conductor groups, which are characterized in that: the several conductor groups are composed of two annealed copper conductors wrapped with an insulating layer and a reinforcing core twisted with each other, Several conductor groups are wrapped with an inner cladding layer and a sub-shielding layer in turn, and the several conductor groups wrapped around the sub-shielding layer are twisted with the filling tape to form a cable core with a circular cross section. Tape layer, overall shielding layer, outer tape layer, sheath layer of elastomer rubber material.

The flame-retardant polyolefin insulated elastic body rubber sheathed flexible cable for computers is characterized in that the conductor is made of multiple strands of oxygen-free copper strands twisted.

The flame-retardant polyolefin insulated elastic body rubber sheathed flexible cable for computers is characterized in that: the sub-shielding layer and the overall shielding layer are braided by copper wires, and the braiding rate of the sub-shielding layers is not less than 80%. The braiding rate of the shielding layer is not less than 75%.

The flame-retardant polyolefin insulated elastic body rubber sheathed flexible cable for computers is characterized in that: the inner tape layer and the outer tape layer are made of flame-retardant polypropylene tape, and the middle tape layer is made of flame-retardant polypropylene tape. Made of acrylic tape vertically.

The utility model has the advantages of:

The structure design of the utility model is simple and reasonable. The conductor group is formed by twisting the insulated wire core and the reinforcing core. At the same time, it adopts the inner, middle and outer wrapping layers, and the middle layer is longitudinally wrapped, so that the cable has good flame retardancy, low smoke and halogen-free, environmental protection, Good heat resistance, aging resistance, anti-electromagnetic interference, soft and easy to lay and other characteristics.

Description of drawings:

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

Detailed ways:

See Figure 1:

Flame-retardant polyolefin insulated elastic body rubber sheath flexible cable for computers, including several conductor groups, several conductor groups are composed of two annealed copper conductors 1 wrapped with insulating layer 2 and reinforcing core 3 twisted with each other, several conductor groups The outer layer is wrapped with an inner tape layer 4 and a sub-shield layer 5 in turn, and several conductor groups wrapped with the sub-shield layer 5 are twisted with the filling tape 6 to form a cable core with a circular cross-section, and the cable core is wrapped with a middle tape layer in turn 7. The overall shielding layer 8, the outer tape layer 9, and the sheath layer 10 of elastomer rubber material.

The conductor is made of strands of oxygen-free copper strands.

The sub-shielding layer 5 and the overall shielding layer 8 are braided with copper wires, the braiding ratio of the sub-shielding layer 5 is not less than 80%, and the braiding ratio of the overall shielding layer is not less than 75%.

The inner tape layer 4 and the outer tape layer 9 are made of flame-retardant polypropylene tape wrapping, and the middle tape layer 7 is made of flame-retardant polypropylene tape longitudinally.

Claims (4)

1. a fire retardant polyolefin insulating elastomer rubber sheath computer is used flexible cable; Comprise several conductor groups; It is characterized in that: described several conductor groups adopt the soft copper conductor and the mutual stranded formation of strengthening core of two wrap insulate layers; Several conductor groups are enclosed with interior belting layer, sub-shield outward successively; Several conductor groups of parcel sub-shield and the mutual stranded formation of filling tape cross section are circular cable core, and described cable core is enclosed with the restrictive coating of middle belting layer, total screen, outer belting layer, elastomer rubber material outward successively.

2. fire retardant polyolefin insulating elastomer rubber sheath computer according to claim 1 is used flexible cable, it is characterized in that: described conductor adopts multiply oxygen-free copper tow strand to constitute.

3. fire retardant polyolefin insulating elastomer rubber sheath computer according to claim 1 is used flexible cable; It is characterized in that: described sub-shield adopts the copper wire braiding to constitute with total screen; The braiding rate of sub-shield is not less than 80%, and the braiding rate of total screen is not less than 75%.

4. fire retardant polyolefin insulating elastomer rubber sheath computer according to claim 1 is used flexible cable, it is characterized in that: belting layer, outer belting layer adopt the wrapped formation of polypropylene flame redardant band in described, and middle belting layer adopts the vertical bag of polypropylene flame redardant band to constitute.