CN203571689U - Anti-negative-pressure cable - Google Patents

Abstract

An anti-negative-pressure cable is of a cable structure that can prevent underground lamps and underwater light fixtures from absorbing water due to negative pressure. An anti-negative-pressure cable lower housing, a cable line, a PCB and an anti-negative-pressure cable upper cover are combined in order to form the anti-negative-pressure cable. Epoxy AB glue is adopted inside a cavity for embedment, thereby preventing water drops and moisture caused by negative pressure from entering a light fixture along the outer sheath of the cable line.

Description

Anti-negative pressure cable

technical field

The utility model relates to a kind of Cable structure of anti-negative pressure water suction, particularly for the Cable structure that solves the anti-negative pressure water suction of underground lamp and Under water lamp.

background technology

At present, known underground lamp and Under water lamp waterproof protective are to adopt totally-enclosed mode, but product is because of its operation with close, inner can be because variations in temperature makes air pressure change larger, in housing, gas just can be from vulnerable area discharge side; After product power-off, along with the reduction gradually of internal temperature, produce negative pressure, the media such as the rainwater of outside and humid air, just enter inside cavity along cable crust, and long-term accumulation will cause the electrical property of product to lose efficacy.

utility model content

In order to solve the defect that adopts totally-enclosed mode to seal, the utility model provides a kind of can the prevention because negative pressure reason makes the globule and moisture along cable crust, to enter the anti-negative pressure cable of light fixture.

The technical scheme that the utility model solves its technical problem employing is: anti-negative pressure cable lower casing, cable, pcb board, anti-negative pressure cable upper cover are combined in order, and in cavity, use the embedding of epoxy AB glue, be assembled into anti-negative pressure cable.During use, the power line using anti-negative pressure cable as light fixture uses, thereby stop, because negative pressure reason makes the globule and moisture, along cable crust, enters light fixture, reaches best waterproof effect.

The beneficial effects of the utility model are, make underground lamp and Under water lamp, reach best waterproof effect.And simple and compact for structure, do not affect poling wiring, effective.

accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is further illustrated.

Figure mono-is outside drawing of the present utility model.

Figure bis-is that the K of anti-negative pressure cable is to view.

Figure tri-is that the L of anti-negative pressure cable is to end view drawing.

Figure tetra-is A-A cutaway views of Fig. 1.

1. anti-negative pressure cable upper covers in figure tetra-, 2. anti-negative pressure cable lower casing, 3. epoxy AB glue, 4. pcb board, 5. cable.

the specific embodiment

In figure tetra-, one, the welding of cable (5) and pcb board (4); Two, the cable welding (5) is penetrated to anti-negative pressure cable lower casing (2); Three, will insert pcb board (4) the embedding epoxy AB glue (3) of anti-negative pressure cable lower casing (2) cavity; Four, cover again anti-negative pressure cable upper cover (1), form anti-negative pressure cable.During use, the power line using anti-negative pressure cable as light fixture uses.

Claims (1)

1. a kind ofanti-negative pressure cable, is characterized in that: be connected to the device on totally enclosed underground lamp and Under water lamp, by anti-negative pressure cable lower casing, cable, pcb board, anti-negative pressure cable upper cover, combine in order, and in cavity, use the embedding of epoxy AB glue.

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