Flame-retardant wire connector

Abstract

This invention relates to a flame-retardant wire connector, comprising a male connector, a female connector, and a sheathing layer. One end of the male connector is connected to a first wire, and the other end has a protruding male terminal electrically connected to the first wire. One end of the female connector is connected to a second wire, and the other end has a protruding female terminal electrically connected to the second wire. When the male connector and the female connector are mated, the male terminal and the female terminal are electrically connected. The sheathing layer covers the entire mating male and female connectors and includes a flame-retardant layer and a waterproof insulating layer. The flame-retardant layer is adhered to the surfaces of the male and female connectors, and the waterproof insulating layer is located outside the flame-retardant layer. The flame-retardant layer contains a flame-retardant material selected from one of the following: perfluorohexanone microcapsules, fluoroketone compound microcapsules, potassium salt aerosol, paraffin PCM, hydrated salt PCM, graphite composite PCM, ammonium polyphosphate (APP), pentaerythritol (PER), and melamine. This enhances the flame-retardant and protective effect of the wire connector and reduces the risk of fire spread in case of abnormal heating or ignition.

Claims

1. A flame-retardant wire connector, comprising: a male connector, one end of which is connected to a first wire, and the other end having a protruding male terminal electrically connected to the first wire; a female connector, one end of which is connected to a second wire, and the other end having a protruding female terminal electrically connected to the second wire; wherein the male terminal and the female terminal are electrically connected when the male connector and the female connector are mated; a covering layer covering the entire mated male connector and the female connector, the covering layer comprising a flame-retardant layer and a waterproof insulating layer, the flame-retardant layer being attached to the surfaces of the male connector and the female connector, and the waterproof insulating layer being located outside the flame-retardant layer; the flame-retardant layer comprising a flame-retardant material selected from one of perfluorohexanone microcapsules, self-fluorinated ketone compound microcapsules, potassium salt aerosol, paraffin PCM, hydrated salt PCM, graphite composite PCM, ammonium polyphosphate (APP), pentaerythritol (PER), and melamine.

2. The flame-retardant wire connector as described in claim 1, wherein, The flame-retardant material of the flame-retardant layer is dispersed in one of the following: pressure-sensitive adhesive, silicone, polyurethane (PU), thermoplastic polyurethane (TPU), and polyimide.

3. The flame-retardant wire connector as described in claim 2, wherein, The waterproof insulation layer material is selected from, but is not limited to, PET, aluminum foil, polyimide, polyvinylidene fluoride (PVDF), nylon film, TPU, silicone self-fusing tape, silicone cold shrink tubing, ethylene propylene rubber (EPR) self-fusing tape, polyisobutylene self-fusing tape, polyvinyl chloride (PVC) heat shrink film, polyethylene terephthalate (PET) heat shrink film, polyethylene (PE) heat shrink film, polyvinylidene fluoride (PVDF) heat shrink film, and fluorinated ethylene propylene copolymer (FEP) heat shrink film.

4. The flame-retardant wire connector as described in claim 3, wherein, The flame-retardant layer and the waterproof insulation layer are both membrane-type.

5. The flame-retardant wire connector as described in claim 4, wherein, The flame-retardant layer and the waterproof insulating layer are each in the form of a film, and the waterproof insulating layer is covered with an adhesive layer to adhere the flame-retardant layer.

6. The flame-retardant wire connector as described in claim 3, wherein, The flame-retardant layer is applied over the waterproof insulation layer.

7. A flame-retardant wire connector as described in any one of claims 1 to 6, wherein, This wire connector is a connector for current transmission in a solar photovoltaic power generation system.

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