KR101398673B1 - Explosion proof type lamp - Google Patents

Abstract

The present invention relates to an explosion-proof lamp. The explosion-proof lamp comprises a main body having an open front side, an open rear side, a mounting space inside thereof, and a partition wall for partitioning the mounting space into a first mounting space and a second mounting space that are mutually separated from each other; a front cover coupled to the front side of the main body and having a light-transmitting window to allow a person to see the first mounting space; a rear cover coupled to the rear side of the main body to close the second mounting space; a light part including an LED module installed in the first mounting space and a control module installed in the second mounting space to control operation of the LED module; a tempered glass installed between the front of the main body and the front cover to protect the LED module; and a sealant interposed between the LED module and the tempered glass to seal the space between the LED module and the tempered glass. According to the present invention, as the space is partitioned into the space for installing the LED module and the space where the control module is installed, which are mutually separated from each other, pressure, gas, or moisture in one space is not introduced into the other space. Thus the explosion-proof lamp can work safely even in a place where an explosion risk exists. Moreover, the heat generated from the LED module can be quickly dissipated through the partition wall and heat-dissipating wings, whereby the lifetime can be increased and the replacement cost can be reduced.

Description

Explosion proof type lamp

More particularly, the present invention relates to an explosion-proof luminaire capable of being used in an atmosphere having high lightness, high air-tightness with high flammability, and high moisture content, as well as being not damaged even when subjected to an external impact .

In general, explosive gases and explosive atmospheres due to vapors or dust are formed, and factories handling various flammable materials are areas of constant risk. These hazardous areas are classified into 0, 1, and 2 hazardous areas according to the hazardous conditions. Among these hazardous areas, 0 and 1 are always exposed to fire, explosion and heat. .

The electric apparatus and the lighting apparatus used in the place where the explosion danger atmosphere is formed are designed to prevent the spark generated by the electrical coupling from being released to the outside and to prevent the gas, Structure.

For example, an explosive gas can penetrate into a small gap caused by expansion and contraction caused by blinking of the lighting apparatus, and it is difficult to obtain explosion-proof effect even if the apparatus is closed. Therefore, in the prior art, explosion-proof lamps are those in which an inert gas is introduced so as not to be ignited even when an explosive gas is infiltrated by explosion gas. Generally, such explosion-proof lamps are generally used for lamps such as sodium lamps, halogen lamps, incandescent lamps, There is a problem that the size is large and the power consumption is large.

Particularly, when a discharge lamp such as sodium is used as a light source, a ballast is used to control an overcurrent, which is bulky, consumes a lot of power, and is exposed to an unstable state in a place where vibration is high.

In addition, when the light source and the stabilizer are not properly heat-dissipated, such an explosion-proof lamp has a problem that it can shorten its life due to overheating and cause a very dangerous situation. Therefore, such an explosion-proof lamp usually has a lamp having a glass bulb such as a high-pressure mercury lamp or a high-pressure sodium lamp, or a metal halide lamp, and has a pressure-resistant casing for preventing explosion of the lamp from secondary explosion in the event of spark due to overheating do.

The pressure-resistant casing has an internal pressure that resists pressure when an explosion occurs inside due to an electrical defect therein, and air tightness is required which is not likely to be ignited by external explosive gas through a joint surface, an opening or the like. A casing such as an explosion-proof casing has a structure in which a glass globe or a tempered glass is tightly bonded to a casing main body made of a metal and a protective net is formed outside the glass globe or tempered glass to protect it from an external impact.

Further, since the lamp is provided with a glass bulb, a glass globe or a tempered glass must have a sufficient inner space for accommodating the glass bulb and must have an internal pressure against the breaking force at the time of explosion of the bulb, The entire casing including the glass has a thick and large size explosion-proof structure.

On the other hand, when the LED is applied as a light source, there is almost no risk of sparking of the lamp due to heat. Therefore, if an explosion proof is formed by using an LED lamp, a strong pressure resistant structure is unnecessary.

Accordingly, although explosion-proofing using LEDs is conventionally proposed in Korean Patent Publication No. 10-0910539 and Korean Utility Model Publication No. 20-2011-0006648, the structure is complicated and the heat dissipation performance is not supported, This is a short problem.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an explosion-proof illuminating apparatus capable of performing a lighting function safely even in the presence of a risk of explosion of gas.

Further, it is an object of the present invention to provide an explosion-proof lighting apparatus which can dissipate heat generated from an LED quickly, thereby prolonging the life of the product and of course reducing the replacement cost.

According to another aspect of the present invention, there is provided an explosion-proof illuminating device including a front mounting part and a rear mounting part, the front mounting part having a front mounting part and a rear mounting part, A main body provided with a partition wall; A front cover coupled to a front portion of the main body and provided with a light transmitting window so that the first mounting space can be seen from the outside of the main body; A rear cover coupled to a rear portion of the main body to close the second mounting space; An illumination module installed in the first installation space and a control module installed in the second installation space and controlling an operation of the LED module; A tempered glass installed between the front surface of the main body and the front cover to protect the LED module; And a sealing material interposed between the LED module and the tempered glass to seal a space between the LED module and the tempered glass.

A first packing member interposed between the front portion of the main body and the front cover, a second packing member interposed between the front cover and the tempered glass, and a third packing member interposed between the rear portion of the main body and the rear cover. A pressing groove for pressing the upper surface of the tempered glass placed in the seating groove is formed on the front cover, .

Wherein the front portion has a first engagement flange extending radially from the body edge and the front cover has a second engagement flange formed in a shape corresponding to the first engagement flange and in tight contact with the first engagement flange Wherein the first engaging flange is drawn inward from a surface facing the second engaging flange to form a first packing groove into which the first packing member is inserted, and the second packing member is inserted into the press- Wherein the first packing flange and the second fitting flange are formed with fastening grooves for fastening the fixing bolts at positions corresponding to each other, and the rear cover is provided with the third packing member, Is formed in the recessed portion.

A packing unit coupled to a through hole passing through the partition wall so as to allow a cable extending from the control module to the LED module to supply power to the LED module so as to seal a gap between the cable and the through hole; Wherein the packing unit further comprises a socket part formed with a hollow part for allowing the cable to pass therethrough and screwed to the through hole, a head part extended from the upper part of the socket part so as to be distant from the hollow part, And a charging part filled in a space between the inner peripheral surface of the part and the cable.

And an elastic part interposed between the head part and the partition wall and elastically deformed by the head part when the socket part is screwed into the through hole to close a gap between the partition and the head part .

According to the explosion-proof luminaire of the present invention, the space in which the LED module is mounted and the space in which the control module for controlling the operation of the LED module are installed is partitioned into mutually independent spaces through partition walls, It is possible to prevent the spark due to electrical defects from being transmitted outside from the inside of the main body by blocking completely through the front cover and the rear cover. In addition, the explosion pressure, explosive gas, It is possible to prevent the gas from entering into the inside of the apparatus, and to perform the lighting function safely even in the case where there is a danger of gas explosion.

In addition, the heat generated from the LED module can be rapidly dissipated through the partition wall and the heat dissipating blade, thereby prolonging the life of the product, and of course, reducing the replacement cost.

1 is an exploded perspective view showing an explosion-proof luminaire according to the present invention.
2 is a sectional view of the explosion-proof luminous means shown in Fig.
3 is a sectional view of the explosion-proof illuminating apparatus shown in Figs. 1 and 3. Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an explosion-proof illuminating device according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 to 3 show an explosion-proof luminaire according to the present invention.

1 to 3, the explosion-proof luminaire according to the present invention includes a first mounting space 101 and a second mounting space 101. The first mounting space 101 and the second mounting space 101 are separated from each other by a front surface and a rear surface, A main body 100 provided with a partition 130 separating the main body 100 from the main body 100 and a second main body 100 coupled to the main body 100, A front cover 200 provided with a window 201 and a rear cover 300 coupled to a rear portion of the main body 100 and closing the second mounting space 102; And a control module 160 installed in the second mounting space 102 and controlling the operation of the LED module 150. The front cover 200 and the front cover 200 are mounted on the front surface of the main body 100, A reinforcing glass 400 installed between the LED module and the tempered glass to protect the LED module 150, And a cable 130 extending from the control module 160 to the LED module 150 in order to supply power to the LED module 150. [ And a packing unit 170 coupled to the penetrating through hole 131 and sealing the gap between the cable C and the through hole 131.

A mounting space is formed along the longitudinal direction so as to mount the illumination unit inside the main body 100, and the front and rear portions opposed to each other are opened to have a structure communicating with the outside, It is made of metal material.

A plurality of radially extending heat dissipating vanes 105 are formed on an outer circumferential surface of the main body 100 so that the heat generated by the LED chip 152 of the LED module 150 can be easily radiated to the outside, A first fastening bracket (not shown) for fastening the rear cover 300 to be described later is separately provided on one side of the heat dissipating vane 105. A first engagement flange (not shown) extending from the edge of the main body 100 110 are provided.

In the drawing, reference numeral 151 is a substrate on which the LED chip 152 is mounted.

A seating groove 106 for seating the tempered glass 400 is formed on the front surface of the main body 100. The front surface of the main body 100 is drawn inward on the surface of the first engaging flange 110, A first packing groove 113 for inserting a first packing member 114 interposed in the first packing groove 113 is formed.

The main body 100 is further provided with support hooks 500 rotatably coupled to support brackets 112 provided on both sides of the main body 100 so as to be fixed to a wall or support.

The front cover 200 is formed in a size and shape corresponding to the front portion of the opened main body 100, and has a translucent window 201 at a central portion thereof.

The front cover 200 is formed with a pressing groove 206 for pressing the upper surface of the tempered glass 400 that is seated in the seating groove 106. The front cover 200 is drawn inward into the pressing groove 206, A second packing groove 222 for inserting a second packing member 221 interposed between the reinforcing glass 400 is formed.

The front cover 200 is provided with a second engagement flange 210 extending from the edge to engage the first engagement flange 110 of the body 100.

The first coupling flange 110 and the second coupling flange 210 are formed with coupling grooves 230 for coupling the fixing bolts to each other.

The first packing member 114 and the second packing member 221 are fixed to the main body 100 when the front cover 200 and the main body 100 are coupled to each other, that is, the first engaging flange 110 and the second engaging flange 210 are fixed The first engaging flange 110 and the second engaging flange 210 and the second engaging flange 210 and the tempered glass 400 are elastically deformed while being pressed by the bolts 240. Therefore, The gap between the coupling flange 110 and the second coupling flange 210 and the gap between the pressing groove 206 and the tempered glass 400 can be sealed so that moisture or gas flows into the first mounting space 101 Can be prevented.

The rear cover 300 is formed in a size and shape corresponding to the rear portion of the opened main body 100, and the first fastening bracket and the second fastening brackets 330 for fastening are spaced apart from each other along the edge. The first fastening bracket and the second fastening bracket 330 are tightly coupled by a fixing bolt.

The rear cover 300 includes an inner barrier 310 inserted into the second mounting space of the main body 100 and closely contacting the inner circumferential surface of the main body 100 and an inner barrier 310 extending to the outside of the main body 100, And an outer barrier 320 formed to enclose the outer barrier 320. The inner and outer barriers 310 and 320 of the rear cover 300 are spaced apart from each other by a predetermined distance.

A third packing groove 350 for inserting a third packing member (not shown) interposed between the rear portion of the main body 100 and the rear portion of the main body 100 is formed in the rear cover 300 . The third packing groove 350 is formed by the inner and outer barriers 310 and 320 and the width thereof is determined by the thickness of the main body 100.

When the rear cover 300 is coupled to the main body 100, that is, when the first and second fastening brackets 330 and 330 are tightly coupled through the fixing bolts 340, And the third packing groove is sealed by the rear portion of the main body 100 that is introduced into the second mounting space. Therefore, moisture or gas can be prevented from flowing from the outside of the second mounting space.

The illumination unit is mounted on the second mounting space 102 and emits light toward the front side of the main body 100. The illumination unit includes an LED module 150 having LEDs 152 arranged in a matrix on a substrate 151, And a control module 160 for controlling the operation of the LED module 150.

A through hole 108 is formed on one side of the main body 100 so that a power line for supplying power to the control module 160 can pass therethrough. Although not shown in the drawing, the through hole 108 is further provided with a separate packing member (not shown) for sealing the gap with the power line.

The partition 130 has a first mounting space 101 in which the LED module 150 is installed and a second mounting space 101 in which the control module 160 is installed, The LED module 150 is divided into the first mounting space 102 and the second mounting space 102 so that the cable C extending from the control module 160 to the LED module 150 can be passed through the through hole 131 ).

The partition 130 is formed integrally with the main body 100 so that no gap is formed between the inner circumferential surfaces of the main body 100. The LED module 150 is fixed to one side of the barrier rib 130, that is, the side facing the front part, and the control module 160 is fixed to the other side. The barrier ribs 130 may be formed of a metal material such as an aluminum alloy or a copper alloy so as to effectively dissipate heat generated from the LED module 150. In this case, Metal PCB can be applied to improve heat dissipation performance.

The sealing material 153 is filled between the LED module 150 and the tempered glass 4000 so as to seal a space formed between the LED module 150 and the tempered glass 400, That is, the light emitted from the LED chip 152 is made of a transparent material so as to be transmissive. The sealing material 153 is a colorless transparent synthetic resin that can transmit light. The sealing member 153 seals a space between the LED module 150 and the tempered glass 400 to prevent inflow of air or gas into the first mounting space 101 and the second mounting space 102, The LED module 150 is formed to surround the LED module 150, thereby preventing the LED module 150 from being damaged by the explosion.

The packing unit 170 includes a socket 172 formed with a hollow portion 171 for allowing the cable C to pass therethrough and screwed to the through hole 131, A head portion 173 extended away from the hollow portion 171 and a charging portion 174 filled in a space between the inner circumferential surface of the hollow portion 171 and the cable C. [

The socket portion 172 and the through hole 131 are screwed together and the head portion 173 is formed to have a larger diameter than the socket portion 172.

The hollow portion 171 is integrally formed at the center of the socket portion 172 and the head portion 173 and has a diameter slightly larger than the diameter of the cable C for supplying power to the LED module 150 .

The charging part 174 is filled in the hollow part 171 so as to seal the gap between the cable C and the inner peripheral surface of the hollow part 171. Thermosetting plastic material or ceramic material can be used.

The charging unit 174 blocks the movement of gas or moisture from the first mounting space 101 to the first mounting space 101 from the second mounting space 102 or the second mounting space 102.

The packing unit 170 is interposed between the head part 173 and the partition wall 130 and elastically deformed by the head part 173 when the socket part is screwed into the through hole 131, And an elastic portion 180 for closing the gap between the protrusions 173.

The explosion-proof illuminating device according to the present invention includes a first mounting space 101 and a second mounting space 102 in which the inner space of the main body 100 is divided into a first mounting space 101 and a second mounting space 102, The through hole 131 that communicates with the other side 102 is completely sealed through the packing unit 170. Therefore, even if the infiltration of moisture or gas into one space is blocked, In addition, in the opposite case, that is, the explosion generated from the inside due to an electrical defect in the explosion-proof lighting device can be prevented from being transmitted to the outside, which is advantageous in that it can be safely used in an area where there is a risk of explosion.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. It is understandable.

Therefore, the true scope of the present invention should be determined by the technical idea of the appended claims.

100: main body 101: first mounting space
102: second mounting space 105: heat dissipating blade
106: seat groove 110: first engagement flange
200: front cover 201: light transmitting window
206: pressure grooves 210: second engagement flange
300: rear cover 310: inner barrier
320: outer barrier 330: second fastening bracket
400: Tempered glass 500: Support hook

Claims (5)

A front wall and a rear wall are opened, a mounting space is provided therein, and a partition for partitioning the mounting space into a first mounting space and a second mounting space that are independent from each other is provided, and a plurality of radially extending A body formed with heat dissipating wings;
A support bracket rotatably coupled to support brackets provided on both sides of the main body;
A front cover coupled to a front portion of the main body and provided with a light transmitting window so that the first mounting space can be seen from the outside of the main body;
A rear cover coupled to a rear portion of the main body to close the second mounting space;
An illumination module installed in the first installation space and a control module installed in the second installation space and controlling an operation of the LED module;
A tempered glass installed between the front surface of the main body and the front cover to protect the LED module;
A sealing material interposed in the space formed between the LED module and the tempered glass to seal a space between the LED module and the tempered glass and formed of a transparent material so that light emitted from the LED module can be transmitted;
A packing unit coupled to the through hole passing through the partition so as to allow a cable extending from the control module to the LED module to supply power to the LED module so as to seal a gap between the cable and the through hole; ;
A first packing member interposed between a front surface of the main body and the front cover;
A second packing member interposed between the front cover and the tempered glass;
And a third packing member interposed between the rear portion of the main body and the rear cover,
Wherein the front portion of the body has a seating groove for seating the tempered glass and a first engagement flange extending radially from the body edge,
Wherein the front cover has a pressing groove for pressing an upper surface of the tempered glass placed in the seating groove and a second engaging flange formed in a shape corresponding to the first engaging flange and closely fitted to the first engaging flange In addition,
The first engaging flange is drawn inward from a surface facing the second engaging flange to form a first packing groove into which the first packing member is inserted,
A second packing groove into which the second packing member is inserted is formed in the pressure groove,
The rear cover has an inner barrier inserted into the second mounting space of the main body and closely contacting the inner circumferential surface of the main body and an outer barrier extending outside the main body so as to surround the outer side of the main body, And the second packing member and the rear wall of the main body are inserted between the outer barriers and the outer barriers,
Wherein the packing unit includes a socket part formed with a hollow part for allowing the cable to pass therethrough and being screwed to the through hole, a head part extending away from the hollow part from the upper part of the socket part, And an elastic member which is elastically deformed by the head portion when the socket portion is screwed to the through hole and is closed by a gap between the partition and the head portion, And a lighting unit for lighting the room.
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