CN101261000B - Lamp ventilation waterproof device and method - Google Patents

Abstract

A dynamic waterproof method for lamps includes a lamp housing and a vent pipe, one end of the vent pipe is connected to the inner cavity of the lamp housing, and the other end extends to a dry space. Due to the use of such a structure, when the temperature of the lamp rises, the pressure in the lamp housing increases, and the gas in the lamp housing is discharged through the vent pipe to release the pressure; when the temperature of the lamp drops, the pressure in the lamp housing decreases, and the air in the dry space enters the lamp through the vent pipe, dynamically balancing the air pressure inside and outside the lamp housing, eliminating the deformation of the lamp housing caused by gas pressure, preventing the decline of the sealing performance of the lamp, preventing the low air pressure inside the lamp from absorbing water, and preventing leakage and short circuit damage caused by this, thereby extending the service life of the lamp.

Description

Ventilation and waterproof device and method for lamps and lanterns

technical field

The invention relates to a lamp, in particular to a ventilating and waterproof device and method for a lamp.

Background technique

At present, in the existing technology, the outdoor lamps and lanterns are mainly sealed and waterproof for the components of the shell. However, outdoor lamps experience temperature changes and power-on heating in the use environment, and the internal air pressure of the lamps often changes, resulting in pressure that repeatedly squeezes the shell and damages the structure of the lamp. , which eventually leads to the failure of the seal of the component, which seriously causes the casing to rupture. After cooling down again, the negative pressure will attract the moisture attached to the casing to enter, causing leakage or short circuit.

Contents of the invention

The purpose of the present invention is to provide the lamp with a ventilating pipe connected to the dry atmosphere, release the gas pressure inside the lamp at any time, ensure the pressure balance inside and outside the lamp, dynamically eliminate the gas pressure on the lamp shell, prevent the sealing performance of the lamp shell from decreasing, and prevent negative air pressure from absorbing water , to protect the lamps from water leakage damage.

The present invention is realized in the following way: a ventilating and waterproof device for a lamp, comprising a lamp housing, on which there is a ventilation pipe, and the ventilation pipe communicates with the inner cavity of the lamp to a dry space.

The present invention is characterized in that: there is a mounting hole on the shell of the lamp, one end of the vent nozzle is mounted on the mounting hole, and the other end extends to the dry space, the dry space can be the interior space of a building without rain, or it can be various types of artificially arranged Dry and rain-free protected space;

The present invention is characterized in that: the air pipe is integrated with the shell of the lamp;

The present invention is characterized in that: several lamps are connected through ventilation pipes, and then communicated with the drying space through ventilation pipes;

The present invention is characterized in that: the ventilation pipe and the electric wire are integrated to form a ventilation power cord;

The present invention is characterized in that: the ventilation wire enters the interior of the lamp through the installation hole, and the other end extends into the ventilation wire junction box;

The present invention is characterized in that: there is a ventilation hole on the wire junction box, the ventilation hole is covered with a gas-liquid separation material with a microporous structure, and a water-retaining and breathable enclosure, a breathable dry space is formed in the middle of the box, and the ventilation wire is connected to the box and the lamp;

The present invention is characterized in that: several lamps are connected by ventilation wires, and connected with one or several above-mentioned ventilation junction boxes;

The present invention is characterized in that: several lamps are energized and air-conducted by ventilating wires through waterproof butt joints, and connected to one or several above-mentioned ventilating junction boxes;

A ventilation and waterproof method for a lamp ventilation and waterproof device. When the temperature of the lamp rises, the pressure inside the lamp housing increases, and the gas in the lamp housing is discharged through the ventilation pipe to release the pressure. When the temperature of the lamp decreases, the pressure in the lamp housing decreases, drying The air in the space enters the interior of the lamp through the ventilation pipe, and dynamically balances the air pressure inside and outside the lamp housing.

The dynamic waterproof method for a lamp of the present invention comprises a ventilation pipe, one end of the ventilation pipe communicates with the inner cavity of the lamp shell, and the other end extends to the dry space. Due to the adoption of such a structure, when the temperature of the lamp rises, the pressure inside the lamp housing increases, and the gas in the lamp housing is discharged through the ventilation pipe to relieve pressure; when the temperature of the lamp decreases, the pressure in the lamp housing decreases, and the air in the dry space passes through the vent The air pipe enters the interior of the lamp, dynamically balances the air pressure inside and outside the lamp housing, eliminates the deformation of the lamp housing under gas pressure, prevents the degradation of the sealing performance of the lamp, and prevents the water leakage and short circuit damage of the lamp caused by it.

Description of drawings

Fig. 1 is a schematic diagram of the present invention.

Fig. 2 is an embodiment of the present invention

Fig. 3 is a sectional view of the ventilation wire in the embodiment

Fig. 4 is the external view of the ventilated power supply box in the embodiment

Fig. 5 is an exploded view of the ventilation power supply box in the embodiment

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figure 1, a lamp ventilation and waterproof device includes a lamp housing 1, on which there is a vent pipe 2, and the other end of the vent nozzle 2 extends to a dry space 3, which has the function of ventilation and can eliminate the internal pressure of the lamp at any time. Prevent negative air pressure from absorbing water.

Example

As shown in Fig. 2, Fig. 4 and Fig. 5, several lamps 4 are communicated through ventilating electric wires 5, and the other end of lamps 4 leads ventilating electric wires 5, and electric wires 5 pass through a shape on the bottom box 9 of ventilating junction box 8 in the shape of "working" "The font seal ferrule 6, gas, electricity are introduced in the box, and common power cord is entered in the box by seal ferrule 7 and is connected with ventilating electric wire to give electricity, hole 11 is arranged on the box cover 10, and microporous filter core 12 is installed outside hole 11 , can filter mist moisture in the air, the bottom box 9, the sealing ring 15, the box cover 10, and the filter element 12 form a breathable dry space, and the enclosure 13 protects the filter element 12 from rainwater and splashing water. Through the louver-shaped blade 14 gap, the space of the junction between the enclosure and the box cover 10 is detoured into the enclosure, and the rainwater poured onto the box 8 is drained away along the blades 14 with a certain inclination.

Fig. 3 is respectively two-core, three-core and four-core cross-sectional views of ventilated electric wires, wherein the air vent 16 leads to the drying space of the lamp and the junction box, and its special-shaped cross-section also prevents the electric wire from bending to block the air hole, and the metal core wire 17 The power supply in the junction box is supplied to the lamp 4, and the insulating layer 18 and the outer skin 19 play a role of support and protection.

The above structure can dynamically discharge the gas pressure inside the lamp due to temperature changes, prevent negative air pressure from absorbing water, prevent the sealing performance of the lamp from being damaged, prolong the service life of the lamp, and do not change the production and installation process of the existing lamp, and do not change the appearance of the lamp ,low cost.

Claims (5)

1. A ventilating and waterproof device for a lamp, characterized in that it includes a lamp housing, on which there is an air pipe, and the air pipe connects the inner cavity of the lamp to a dry space. 2. The ventilation and waterproof device for lamps according to claim 1, characterized in that: there is a mounting hole on the housing, one end of the ventilation pipe is mounted on the mounting hole, and the other end extends to the dry space. 3. The lamp ventilating and waterproof device according to claim 1, characterized in that: the vent pipe is integrated with the lamp shell. 4. The ventilating and waterproof device for lamps according to claim 1, wherein several lamps are connected through ventilation pipes, and then communicated with the dry space through ventilation pipes. 5. A ventilating and waterproofing method using the ventilating and waterproofing device for lamps according to claim 1, characterized in that: when the temperature of the lamp rises, the pressure inside the lamp housing increases, and the gas in the lamp housing is discharged through the vent pipe to release the pressure. As the temperature of the lamp decreases, the pressure inside the lamp shell decreases, and the air in the dry space enters the inside of the lamp through the ventilation pipe, dynamically balancing the air pressure inside and outside the lamp shell.

Images