PVC aluminum-plastic composite flame-retardant shielding electrical bushing and manufacturing equipment
An aluminum-plastic composite, electrical casing technology, applied in the direction of electrical components, etc., can solve the problems of no external signal shielding, no flame retardancy, electrical signal interference of wires and cables, etc.
Active Publication Date: 2018-11-06
SHENZHEN MINGDIAO DECORATION CO LTD
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Problems solved by technology
[0002] The existing wire casings are basically made of PVC and other plastic materials. Although they are light in weight and easy to install, they have certain safety hazards when used as wire casings because they do not have good flame retardancy.
At the same time, PVC material cannot shield external signals, and it is easy to interfere with electrical signals in wires and cables, affecting the stability of electrical signal transmission
Method used
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[0020] In order to make the purpose, technical solutions and advantages of the invention clearer, 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 part of the invention Examples, but all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0021] Such as figure 1 As shown, the present invention provides an embodiment of a PVC-aluminum-plastic composite flame-retardant shielding electrical bushing.
[0022] The PVC-aluminum-plastic composite flame-retardant shielding electrical bushing includes a PVC inner layer 1 and a PVC outer layer 2, and an aluminum foil layer 3 is arranged between the PVC inner layer 1 and the ...
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The invention discloses a PVC (polyvinyl chloride) aluminum-plastic composite flame-retardant shielded electrical casing, comprising a PVC inner layer and a PVC outer layer; and an aluminum foil layer is arranged between the PVC inner layer and the PVC outer layer. As the aluminum foil layer is arranged between the PVC inner layer and the PVC outer layer, the aluminum foil layer can shield disturbances from external electrical signals to improve stability and reliability of the electrical signals transmitted in a wire or cable in the casing, and the aluminum foil layer can also conduct electricity, enables wire casings to be serially connected to arrive at metal interconnection through special fittings, and may also function as a ground wire, thereby conducting current to a ground through the aluminum foil in case of wire short circuit or manual contact with a wire, without causing electrical shock injury to a human body. The surface is melted by infrared heating to fill second through holes of the aluminum foil, the aluminum foil tightly contacts the PVC inner layer, PVC material fills first through holes during re-shaping of the PVC outer layer, and the aluminum foil may also tightly contact the PVC outer layer, the bending flexibility of a conduit is guaranteed, and layering rarely occurs during bending.
Description
technical field [0001] The invention relates to the technical field of pipe materials, in particular to a PVC-aluminum-plastic composite flame-retardant shielding electrical bushing and manufacturing equipment. Background technique [0002] Existing wire sleeves are basically made of plastic materials such as PVC. Although they are light in weight and easy to install, they have certain safety hazards when used as wire sleeves because they do not have good flame retardancy. At the same time, PVC material cannot shield external signals, and it is easy to interfere with electrical signals in wires and cables, affecting the stability of electrical signal transmission. Contents of the invention [0003] The technical problem mainly solved by the present invention is to provide a flat PVC-aluminum-plastic composite flame-retardant shielded electrical bushing and its manufacturing equipment. The PVC-aluminum-plastic composite flame-retardant shielded electrical bushing can avoid ...
Claims
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IPC IPC(8): H02G3/04
CPCH02G3/0406H02G3/0412
Inventor 赵斌蓝继晓
Owner SHENZHEN MINGDIAO DECORATION CO LTD