CN202091844U

CN202091844U - Double-cavity explosion-suppression LED lamp

Info

Publication number: CN202091844U
Application number: CN2011201726493U
Authority: CN
Inventors: 何雷; 张佃环
Original assignee: JIANGSU SUNLIGHT PHOTOELECTRIC CO Ltd
Current assignee: JIANGSU SUNLIGHT PHOTOELECTRIC CO Ltd
Priority date: 2011-05-27
Filing date: 2011-05-27
Publication date: 2011-12-28
Anticipated expiration: 2021-05-27

Abstract

The utility model relates to a double-cavity explosion-suppression LED lamp, which includes a cavity body of a light source cavity and a cavity body of a power supply cavity. The cavity body of the light source cavity includes a glass gland, a glass lampshade, a glass compacting cushion, a light source assembly and a light source cavity casing, wherein the glass lampshade and the glass gland are sealed through organic silica gel and form a gluing joint surface; meanwhile, the glass lampshade is compacted in the light source cavity casing through the glass compacting cushion, so as to seal the light source assembly in the light source cavity casing; and the glass gland is fixedly connected with the light source casing through a threaded structure. The double-cavity explosion-suppression LED lamp can be mutually independent when heat is generated during the work or danger occurs, the explosion-suppression effect is more excellent, and the lamp has excellent anti-explosion suppression, corrosion resistance and antistatic performance.

Description

Dual chamber explosion-proof type LED light fixture

Technical field

The utility model relates to a kind of explosion-proof lamp, especially relate to a kind of with the explosion-proof lamp of high-power and high-luminance white light emitting diode as lighting source, belong to field of illumination lamp technology, be widely used in the Special Work light fixture of special industries such as oil field, petrochemical industry, boats and ships, electric power, railway, mine, military project.

Background technology

Explosion-proof lamp is meant the light fixture for the various certain measures that prevent environment such as explosive mixture on every side such as explosive gas atmosphere, explosive dust atmosphere, methane gas and take.The very important explosion-proof principle of one of them of explosion-proof lamp is exactly the temperature on the restriction case surface, component surface or the electronic devices and components surface that contact with damp, explosive dust and limits electric contact surface temperature and be lower than its minimum ignition temperature or ignition temperature.And the flame-proof type explosion-proof lamp is wherein a kind of flame proof pattern, its shell can bear the flammable mixtures that is penetrated into enclosure by any composition surface of shell or structure interval and it can not damaged at internal explosion, and can not cause lighting of the outside explosive atmosphere that is formed by a kind of, multiple gases or steam.

Because LED belongs to solid-state cold light source, be to utilize semiconductor chip as luminescent material, be encapsulated in the transparent material with certain intensity, have energy-conservation, environmental protection, life-span is long, characteristics such as volume is little, because operating voltage belongs to safe low-voltage, advantage with long service life, therefore large power white light LED is an explosion-proof lamp, a kind of very desirable electric light source of Portable explosion-proof lamp particularly, the LED explosion-proof lamp mainly solves the lighting problem of specific occasion, it comprises lamp housing, be arranged on the lampshade of lamp housing front end, be arranged at the illuminator and the battery of lamp housing inside, be arranged at the switch on lamp housing surface, thereby reach desirable illuminating effect through scientific and reasonable luminous intensity distribution again, on explosion-proof lamp, can show its unique one side fully.

Traditional explosion-proof lamp light source and electrical appliance part are in same chamber, and the heat that produces in the course of work adds up, and make the case surface temperature sharply raise, and produce potential safety hazard; The geometry formation more complicated of a chamber to inside exists together, corner angle are more to cause unbalanced stress and volumetric spaces bigger, be easy to generate the pressure piling phenomenon, traditional explosion-proof lamp flame proof pattern also has very strict requirement to the selection of light source, surface temperature as light source works when good, colour rendering, and when damaging, whether can produce harmful effect.

The utility model content

For solving the deficiencies in the prior art, the purpose of this utility model is to provide a kind of dual chamber explosion-proof type LED light fixture that can effectively overcome the technical deficiency of traditional explosion-proof lamp.

Principle of the present utility model is: the utility model is by taking special shell composition surface structure, and cable introducing device and translucent cover handled especially, feasible light source cavity and the power supply cavity that the utlity model has sufficient intensity, all devices that are easy to generate spark and electric arc and dangerous temperature all are enclosed in its cavity, in two separate cavitys, work, when blasting, can not damage at internal explosion, and can not cause outside by a kind of by the flammable mixtures that shell composition surface or structure interval are penetrated into enclosure, lighting of the explosive atmosphere that multiple gases or steam form.

The utility model is to realize by following technical scheme:

Dual chamber explosion-proof type LED light fixture, comprise light-source chamber cavity and power source cavity cavity, described light-source chamber cavity comprises the glass gland, glass lamp shade, the glass clamping pad, light source assembly and light-source chamber housing, wherein, seal by organic silica gel between glass lamp shade and the glass gland, form gluing faying face, simultaneously, glass lamp shade is pressed in the light-source chamber housing by the glass clamping pad, wherein, the glass clamping pad adopts the structural carbon steel Q235A of high-quality, make light fixture antiknock ability strengthen greatly, it is sealed in light source assembly in the light-source chamber housing, and the glass lamp shade employing is high transmission rate, high-intensity ultrawhite safety glass, promptly refer to energy impact, and be by explosive test through 4J, popular drama becomes test.And advanced the glass after test back light transmittance is handled greater than 88% ultrawhite tempering in light fixture, described glass gland is then fixedlyed connected with light source shell by helicitic texture.

And be provided with through wires hole in the middle of the upper end of described light-source chamber housing, also be formed with stepped hole around the described through wires hole, described stepped hole passes through the epoxy resin embedding at the step place.

The beneficial effects of the utility model are: high accuracy full thread structure that all faying faces described in the utility model all adopt and two-chamber explosion separation structure, meet the requirement of up-to-date flame-proof type explosion-proof lamp Design of Luminaires, the heat that produces during work and separate when causing danger, flame proof effect are excellent more; In addition, product appearance described in the utility model is frivolous, shock-resistant, antidetonation, comprehensive mechanical mechanical property are good, adopt the tempering treatment process glass of the strictness of ultrawhite, the service life of having improved light fixture.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the utility model one embodiment;

Fig. 2 is the perspective exploded view of explosion-proof lamp light source cavity shown in Figure 1.

The implication of each Reference numeral is among the figure:

1, glass gland 2, glass lamp shade 3, glass clamping pad

4, light source assembly 5, light source shell

The specific embodiment

Below in conjunction with the drawings and specific embodiments the utility model is done concrete introduction.

For the introducing mode of flame-proof type light fixture, country has made clear and definite regulation, and light fixture has two kinds of introducing modes:

A) introduce indirectly, with terminal box or plug assembly ways of connecting;

B) directly introduce, cable and lead are directly inserted the connected mode of main shell.It should be noted that under the situation that sealing ring is aging or do not press tightly and directly to produce burning or propagation of explosion.

When operate as normal, produce dangerous spark, electric arc or dangerous temperature and shell volume greater than 2000cm ³Or the 4th explosion-proof lamp that divides II C level into of GB3836.1 " explosive gas atmosphere electrical installation part 1: general requirement ", cannot adopt the elastic seal ring compression type directly to introduce mode.

Introduce its device that comes down to easily to produce dangerous spark, electric arc or dangerous temperature indirectly and be divided into a plurality of cavitys, thereby reach better flame proof effect.The explosion-proof type LED explosion-proof lamp has the characteristics of afore mentioned rules, light fixture preferentially adopts two-chamber or a plurality of cavity, be difficult for producing electric arc or spark when at first led light source is originally as its work of solid state light emitter, and be spaced, the easy cavity that produces the device place of spark or electric arc of work is dwindled once more like this, and safety coefficient also increases greatly.

Fig. 1 is the overall structure schematic diagram of the utility model one embodiment; Fig. 2 is the perspective exploded view of explosion-proof lamp light source cavity shown in Figure 1.

As depicted in figs. 1 and 2:

Dual chamber explosion-proof type LED light fixture, comprise light-source chamber cavity and power source cavity cavity, and above-mentioned light source cavity comprises glass gland 1, glass lamp shade 2, glass clamping pad 3, light source assembly 4 and the sealing of light-source chamber housing 5 organic silica gels, form gluing faying face, effectively play the flame proof effect, simultaneously, glass lamp shade 2 is pressed in the light-source chamber housing 5 by glass clamping pad 3, effectively avoided because of becoming flexible that the long-time vibrations of light fixture cause, make that gluing flame proof effect is effectively guaranteed, wherein, glass clamping pad 3 adopts the structural carbon steel Q235A of high-quality, makes light fixture antiknock ability strengthen greatly, it is sealed in light source assembly 4 in the light-source chamber housing 5, and what glass lamp shade 2 adopted is high transmission rate, high-intensity ultrawhite safety glass promptly refers to the energy impact through 4J, and is by explosive test, popular drama becomes test.And in light fixture, advanced the glass after test back light transmittance is handled greater than 88% ultrawhite tempering, glass lamp shade 2 is the tempering treatment process through strictness, thickness is 12mm, interface takes place without any the bad phenomenon such as gouge that produce because of grinding, and through popular drama become, explosive test checking back is after qualified, described glass gland 1 is then fixedlyed connected with light-source chamber housing 5 by helicitic texture, and by the silicon rubber loop sealing, makes light fixture integral protection grade can reach IP65.

More specifically explanation is: be provided with through wires hole in the middle of the upper end of light-source chamber housing 5, also be formed with stepped hole around the described through wires hole, described stepped hole passes through the epoxy resin embedding at the step place, it is divided into two cavitys up and down, cavity size is reduced greatly, and brisance is dwindled much accordingly when meeting accident.

In a word, the led light source that the utility model adopts belongs to solid-state cold light source, have the electro-optical efficiency height, caloric value is little, power consumption is little, operating voltage belongs to advantages such as safe low-voltage, long service life, so large power white light LED is a kind of very desirable electric light source of explosion-proof lamp.The light fixture that its unique blast resistance construction is formed is widely used in the Special Work light fixture of special industries such as oil field, petrochemical industry, boats and ships, electric power, railway, mine, military project.

The foregoing description does not limit the utility model in any form, and all employings are equal to the technical scheme that mode obtained of replacement or equivalent transformation, all drop in the protection domain of the present utility model.

Claims

1. dual chamber explosion-proof type LED light fixture, comprise light-source chamber cavity and power source cavity cavity, it is characterized in that, described light-source chamber cavity comprises glass gland, glass lamp shade, glass clamping pad, light source assembly and light-source chamber housing, wherein, seal by organic silica gel between glass lamp shade and the glass gland, form gluing faying face, simultaneously, glass lamp shade is pressed in the light-source chamber housing by the glass clamping pad, it is sealed in light source assembly in the light-source chamber housing, and described glass gland is then fixedlyed connected with light source shell by helicitic texture.

2. dual chamber explosion-proof type LED light fixture according to claim 1, it is characterized in that, be provided with through wires hole in the middle of the upper end of described light-source chamber housing, also be formed with stepped hole around the described through wires hole, described stepped hole passes through the epoxy resin embedding at the step place.