KR20220065504A - Explosion proof light - Google Patents

Abstract

The present invention relates to an explosion-proof lighting fixture (1000) and, more specifically, to an explosion-proof lighting fixture (1000) with an improved cooling performance. The explosion-proof lighting fixture (1000) according to the present invention can effectively dissipate a heat generated inside the explosion-proof lighting fixture (1000) to the outside, allow a lighting part (1200) installed inside a cover part (1100) to be easily replaced, and allow an explosion-proof molding part applied to the cover part (1100) of the explosion-proof lighting fixture (1000) to provide an effect that is not deformed by a lighting part (1200).

Description

Explosion-proof luminaires {EXPLOSION PROOF LIGHT}

The present invention relates to an explosion-proof luminaire, and more particularly, to an explosion-proof luminaire with improved cooling performance and replaceable lighting parts.

Herein, background information related to the present disclosure is provided, and they do not necessarily mean prior art (This section provides background information related to the present disclosure which is not necessarily prior art).

In general, where an explosive atmosphere is formed by combustible gas and steam or dust, the risk of fire, explosion, and heat generation is high, so electrical appliances used are usually prescribed to have an explosion-proof structure, and have such an explosion-proof structure Explosion-proof luminaires must be sealed in order to eliminate the risk of explosion caused by combustible gas, etc.

On the other hand, conventional explosion-proof luminaires generally use incandescent lamps, fluorescent lamps, three-wavelength lamps, etc. as light sources, so they are bulky and consume a lot of power. Even when used as a light source, it is important to effectively dissipate heat because a significant amount of used power is generated as heat.

As described above, an explosion-proof luminaire using an LED as a light source is disclosed in Korean Patent Registration No. 10-1907667 (hereinafter referred to as 'Prior Patent 1'). In Prior Patent 1, in order to cool the explosion-proof luminaire, it penetrates the heat dissipation unit 400 and the casing unit 210, is fastened to both sides of the casing unit, and is provided in the form of a rod having a center through which the external air flows. A cooling unit cooling the heat dissipation unit An explosion-proof luminaire comprising 500 is disclosed.

However, there is a problem in that there is a limitation in discharging heat generated inside the explosion-proof luminaire to the outside in that the cooling unit of Prior Patent 1 has a structure configured to allow air to flow.

On the other hand, in the conventional explosion-proof luminaire, the casing part and the lighting device mounted inside the casing part are tightly fastened to form an integral body. There was a problem that the entire explosion-proof luminaire had to be replaced.

Republic of Korea Patent Registration No. 10-1907667 (2018.10.05.)

An object of the present invention is to provide an explosion-proof luminaire capable of dissipating heat generated inside the explosion-proof luminaire to the outside in one aspect.

Another object of the present invention is to provide an explosion-proof luminaire that can be easily replaced with a lighting unit installed inside the cover portion of the explosion-proof luminaire in another aspect.

Another object of the present invention is to provide an explosion-proof luminaire having a structure in which the explosion-proof molding applied to the cover part of the explosion-proof luminaire in another aspect is not deformed by the lighting part.

Herein, a general summary of the present disclosure is provided, which should not be construed as limiting the scope of the present disclosure (This section provides a general summary of the disclosure and is not a comprehensive disclosure of its full scope or all of its features).

According to an aspect according to the present disclosure (According to one aspect of the present disclosure), in the explosion-proof luminaire, the cover portion; an illumination unit disposed inside the cover unit and irradiating light when power is applied; and a cooling unit disposed inside the lighting unit to cool the lighting unit, wherein the cover unit is a tubular shielding cover with both sides open, the shielding cover including a first end of the shielding cover and a second end of the shielding cover; a first side cover provided to be fastened to the first end of the shielding cover; A tubular shielding cover support part with both sides open, including a shielding cover support part first end and a shielding cover support part second end, and including a first groove part at the shielding cover support part's first end so that the shielding cover second end is inserted and fastened. Shielding cover support for supporting the cover; and a second side cover provided to close the second end of the shielding cover support and having a through hole formed therein so that the first end of the cooling unit is inserted and fastened; The substrate is arranged to be radially upright while forming a hollow portion and configured to emit light, and the cooling unit has a closed cooling unit first end, an open cooling unit second end, and a closed cooling unit first end and an open cooling unit. It has a tubular structure including a connection part for connecting the second end, and the first end of the cooling part and the connection part are inserted and fastened into the through hole of the second side cover and disposed in the hollow part of the lighting part, and the second end of the cooling part is on the outside of the cover part is disposed, cooling water is supplied from the outside of the cover to the inside of the cover through the second end of the cooling unit, then flows along the connection, then flows back from the first end of the cooling unit and is discharged back to the outside of the cover to cool the lighting unit An explosion-proof luminaire is provided, characterized in that it is additionally configured.

Explosion-proof luminaire according to the present invention can effectively dissipate heat generated inside the explosion-proof luminaire to the outside, and can easily replace the lighting unit installed inside the cover part, and also explosion-proof molding applied to the cover part of the explosion-proof luminaire It is possible to provide an effect of not being deformed by the additional lighting unit.

1 is a diagram schematically showing Prior Patent 1. As shown in FIG.
2 is a diagram schematically showing a perspective view of an explosion-proof luminaire according to an embodiment of the present invention.
3 and 4 are views schematically showing an exploded view of an explosion-proof luminaire according to an embodiment of the present invention.
5 and 6 are views schematically showing a cross-sectional view and a partially enlarged view of an explosion-proof luminaire according to an embodiment of the present invention.

Hereinafter, the present disclosure will be described in detail with reference to the accompanying drawings (The present disclosure will now be described in detail with reference to the accompanying drawing(s)).

Note that in assigning reference numerals to the components of the accompanying drawings to help the understanding of the embodiments described below, the same components are given the same reference numerals as much as possible even though they are indicated on different drawings. In addition, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

2 is a view schematically showing a perspective view of an explosion-proof luminaire according to an embodiment of the present invention.

3 and 4 are views schematically showing an exploded view of an explosion-proof luminaire according to an embodiment of the present invention.

2 to 6 , an explosion-proof luminaire 1000 according to an embodiment of an aspect of the present invention is disposed inside the cover unit 1100 and the cover unit 1100 and irradiates light when power is applied. The lighting unit 1200 may include a cooling unit 1300 disposed inside the lighting unit 1200 to cool the lighting unit 1200 .

The cover unit 1100 may be formed to surround the lighting unit 1200 disposed therein.

3 and 4, the cover part 1100 is a tubular shielding cover 1110 with both sides open. The shielding cover first end 1111 and the shielding cover second end 1112 are A shielding cover 1110 including, a first side cover 1120 provided to be fastened to the shielding cover first end 1111, and a tubular shielding cover support 1130 with both sides open, the shielding cover support first end 1136 ) and the shield cover support part second end 1137, including a first groove part 1131 in the shield cover support part first end 1136 so that the shield cover second end 1112 is inserted and fastened, the shield cover 1110 ) is provided to close the shield cover support part 1130, and the shield cover support part second end 1137 for supporting the second side cover ( 1140) may be included.

That is, in the tubular shielding cover 1110 with both sides open, the shielding cover first end 1111 is fastened to the first side cover 1120, and the shielding cover second end 1112 is the shielding cover supporting part first end 1136 ) may be inserted and fastened to the first groove portion 1131 formed in the .

In other words, in the shield cover support part 1130, the first groove part 1131 is formed in the shield cover support part first end 1136, and the shield cover second end 1112 is inserted and fastened into the first groove part 1131. there is.

The shield cover support part second end 1137 may be closed by being fastened to the second side cover 1140 . Meanwhile, a through hole 1141 into which the cooling unit 1300 is inserted and fastened may be formed in the second side cover 1140 . Specifically, the cooling unit 1300 may be extended into the cover unit 1100 by inserting and fastening the cooling unit first end 1301 into the through hole 1141 formed in the second side cover 1140 .

The shielding cover 1110 may be configured as a double case in order to further improve the explosion-proof performance. In addition, the shielding cover 1110 is preferably made of polycarbonate, tempered glass, etc., which are transparent materials so that light can be transmitted to the outside while having high impact resistance to have an explosion-proof function. The material of the shielding cover 1110 is not limited thereto, and may be made of any material as long as it has high impact resistance and transparency.

The lighting unit 1200 may be disposed inside the cover unit 1100 and configured to irradiate light when power is applied.

Specifically, the lighting unit 1200 includes a substrate 1220 provided with a plurality of light emitting units 1210 arranged along the longitudinal direction of the cover unit 1100 to form a hollow portion 1230 and radially upright to emit light. It can be configured to do this. For example, the substrate 1220 on which the light emitting part 1210 is provided is configured in a hexagonal column shape including the hollow part 1230 , so that light may be radiated from the light emitting part 1210 .

More specifically, the lighting unit 1200 may include a circuit board 1220 on which a circuit is formed, and a plurality of light emitting units 1210 disposed on the circuit formed on the circuit board 1220 and emitting light when power is applied. there is. The light emitting unit 1210 may be, for example, an LED, but is not limited thereto.

In addition, the lighting unit 1200 may further include a heat dissipation unit (not shown) for dissipating heat from the light emitting unit 1210 by being fastened to the circuit board 1220 .

5 and 6 are views schematically showing a cross-sectional view and a partially enlarged view of an explosion-proof luminaire 1000 according to an embodiment of the present invention.

More specifically, FIGS. 5 and 6 (I) are views schematically showing a side view of an explosion-proof luminaire 1000 according to an embodiment of the present invention, and (II) of FIGS. 5 and 6 is (I) is a cross-sectional view taken along A-A.

(III) and (IV) of FIG. 5 are enlarged views of area B shown in (II) of FIG. 5 .

5 and 6 , the cooling unit 1300 may be disposed inside the lighting unit 1200 to cool the lighting unit 1200 . Specifically, the cooling unit 1300 may be inserted and fastened into the through hole 1141 formed in the second side cover 1140 to extend into the cover unit 1100 . More specifically, the lighting unit 1200 may be disposed inside the cover unit 1100 , and the lighting unit 1200 may include a hollow part 1230 . Accordingly, the cooling unit 1300 may be inserted and fastened into the through hole 1141 formed in the second side cover 1140 to extend into the hollow portion 1230 of the lighting unit 1200 .

More specifically, the cooling unit 1300 includes a closed cooling unit first end 1301, an open cooling unit second end 1302, and a closed cooling unit first end 1301 and an open cooling unit. It may have a cylindrical structure including a connecting portion 1303 for connecting the second end 1302 . The cooling unit first end 1301 and the connecting unit 1303 are inserted and fastened into the through hole 1141 of the second side cover 1140 and disposed in the hollow portion 1230 of the lighting unit 1200, and the cooling unit second end ( 1302 may be disposed outside the cover unit 1100 .

Accordingly, cooling water is supplied from the outside of the cover unit 1100 to the inside of the cover unit 1100 through the second end 1302 of the cooling unit, and then flows along the connection unit 1303 and then flows backward from the first end 1301 of the cooling unit. The cooling unit 1300 may be configured to cool the lighting unit 1200 by being discharged to the outside of the cover unit 1100 again.

In the explosion-proof luminaire 1000 according to another embodiment of the present invention, the cooling unit 1300 may include a cooling water external flow path 1310 and a cooling water internal flow path 1320 .

5 and 6 , the cooling water internal flow path 1320 may be disposed inside the cooling water external flow path 1310 and may have a cylindrical shape with both ends open. Meanwhile, the cooling water external flow path 1310 has a cylindrical shape configured to surround the cooling water internal flow path 1320 , and may include an external flow path first end 1311 and an external flow path second end 1312 . The first end 1311 of the external flow path may be closed, and the second end 1312 of the external flow path may be open.

On the other hand, one end of the cooling water internal flow path 1320 and the external flow path first end 1311 are inserted into the cover unit 1100 through the through hole 1141 of the second side cover 1140 and inserted into the lighting unit 1200. It may be located in the hollow part 1230 .

Accordingly, the cooling water is supplied into the cover part 1100 through any one of the cooling water external flow path 1310 and the cooling water internal flow path 1320 , and then located in the hollow part 1230 of the lighting unit 1200 through the connection part 1303 . After flowing to the end of the cooling unit 1300 , the cooling water may be discharged to the outside of the cover unit 1100 along the remaining flow paths not used for supplying cooling water among the cooling water external flow path 1310 and the cooling water internal flow path 1320 .

For example, when the cooling water is supplied into the cover unit 1100 through the cooling water internal flow path 1320, the cooling water is located in the hollow part 1230 of the lighting unit 1200 through the connection part 1303 of the cooling water internal flow path 1320. After flowing to the end of the cooling unit 1300 , it may flow through one open end of the cooling water internal flow path 1320 to the cooling water external flow path 1310 . As described above, one end of the cooling water external flow path 1310 is closed, so the cooling water flowing into the cooling water external flow path 1310 after passing through one open end of the cooling water internal flow path 1320 is one side of the cooling water external flow path 1310 . It may flow backward from the end to flow to the connection part 1303 of the external cooling water flow path 1310 , and then to the opposite end of the cooling water external flow path 1310 . The opposite end of the cooling water external flow path 1310 penetrates the through hole 1141 of the second side cover 1140 and is located outside the cover unit 1100. Accordingly, the cooling water closes the opposite end of the cooling water external flow path 1310. It may be discharged to the outside through the cover unit 1100.

On the other hand, for example, when cooling water is supplied to the inside of the cover unit 1100 through the cooling water external flow path 1310 , the cooling water is supplied through the connection part 1303 of the cooling water external flow path 1310 to the hollow part 1230 of the lighting unit 1200 . After flowing to the end of the cooling unit 1300 located at Subsequently, the coolant may flow to the opposite end of the internal flow path 1320 . The opposite end of the cooling water internal flow path 1320 penetrates the through hole 1141 of the second side cover 1140 and is located outside the cover part 1100, and accordingly, the cooling water passes through the opposite end of the cooling water internal flow path 1320. It may be discharged to the outside through the cover unit 1100.

(III) and (IV) of FIG. 6 are enlarged views of region C shown in (II) of FIG. 6 . More specifically, (III) of FIG. 6 is an enlarged view including the shielding cover 1110, and (IV) of FIG. 6 is an enlarged view without the shielding cover 1110.

3 and 6, in the explosion-proof luminaire 1000 according to another embodiment of the present invention, the first groove portion 1131 of the shield cover support portion 1130 is inserted and fastened in the longitudinal direction of the shield cover ( The first inner protrusion 1132 and the first outer protrusion 1133 protruding toward 1110), and the first inner protrusion 1132 and the first outer protrusion 1133, which are depressed to the opposite side of the shield cover 1110 to be inserted and fastened It may include a first recessed portion 1134 for connecting.

That is, the first groove portion 1131 of the shield cover support portion 1130 may include a first inner protrusion 1132 , a first outer protrusion 1133 , and a first recessed portion 1134 .

The first inner protrusion 1132 and the first outer protrusion 1133 may be formed to protrude toward the shield cover 1110 to be inserted and fastened in the longitudinal direction of the shield cover support part 1130 . More specifically, the first inner protrusion 1132 is formed on the inside along the circumference of the shield cover support 1130 and the first outer protrusion 1133 is formed on the outside along the circumference of the shield cover support 1130. .

Meanwhile, the first recessed portion 1134 may be recessed opposite to the shielding cover 1110 to be inserted and fastened to connect the first inner protrusion 1132 and the first outer protrusion 1133 .

Accordingly, the shield cover second end 1112 may be inserted and fastened to the first recessed portion 1134 formed between the first inner protrusion 1132 and the first outer protrusion 1133 .

Meanwhile, a first explosion-proof molding unit 1135 may be formed between the outer surface of the shielding cover 1110 to be inserted and fastened and the inner surface of the first external protrusion 1133 . The first explosion-proof molding unit 1135 is configured to seal the inside of the explosion-proof lamp 1000, and may be made of, for example, an epoxy resin, but is not limited thereto.

In addition, the first inner protrusion 1132 protrudes longer toward the shielding cover 1110 to be inserted and fastened than the first outer protrusion 1133 , thereby shielding the first explosion-proof molding unit 1135 from the light irradiated from the lighting unit 1200 . can do it In general, the explosion-proof molding part may be accelerated in deformation by the light irradiated from the lighting unit 1200 , and thus the sealing property of the explosion-proof lighting fixture 1000 may be deteriorated, thereby shortening the lifespan.

In the present invention, by configuring the first inner protrusion 1132 of the shielding cover supporting part 1130 to protrude longer toward the shielding cover 1110 that is inserted and fastened than the first outer protrusion 1133, the first explosion-proof molding part 1135 ) can be shielded from the light irradiated from the lighting unit 1200 to prevent acceleration of deformation of the explosion-proof molding unit by the light.

(III) and (IV) of FIG. 5 are enlarged views of area B shown in (II) of FIG. 5 . More specifically, (III) of Figure 5 is an enlarged view including the shield cover 1110, Figure 5 (IV) is an enlarged view excluding the shield cover (1110).

3 and 5 , in the explosion-proof luminaire 1000 according to another embodiment of the present invention, the cover unit 1100 may further include a shield cover fixing ring 1150 .

The shield cover fixing ring 1150 is provided to be fastened to the shield cover first end 1111, and is fastened to the first side cover 1120 and the shield cover first end 1111 at the same time to fix the shield cover 1110. can

More specifically, the shield cover fixing ring 1150 may include a second groove portion 1151 so that the shield cover first end 1111 is inserted and fastened.

The second groove 1151 is a second inner protrusion 1152 and a second outer protrusion 1153 protruding toward the shielding cover 1110 to be inserted and fastened in the longitudinal direction, and the shielding cover 1110 to be inserted and fastened. to include a second recessed portion 1154 connecting the second inner protrusion 1152 and the second outer protrusion 1153 .

That is, the second groove portion 1151 of the shield cover fixing ring 1150 may include a second inner protrusion 1152 , a second outer protrusion 1153 , and a second recessed portion 1154 .

The second inner protrusion 1152 may be formed on the inside along the circumference of the shield cover fixing ring 1150 , and the second outer projection 1153 may be formed on the outside along the circumference of the shield cover fixing ring 1150 .

Meanwhile, the second recessed portion 1154 may be recessed opposite to the shielding cover 1110 to be inserted and fastened to connect the second inner protrusion 1152 and the second outer protrusion 1153 .

Accordingly, the shield cover first end 1111 may be inserted and fastened to the second recessed portion 1154 formed between the second inner protrusion 1152 and the second outer protrusion 1153 .

Also, a thread may be formed on the inside along the circumference of the second inner protrusion 1152 .

Meanwhile, the first side cover 1120 may have a cylindrical ring shape in which a through hole is formed in the center, and may include a protrusion 1121 formed to protrude in the longitudinal direction of the cylindrical tube along the circumference. In addition, the first side cover 1120 may include an internal thread formed on the inside along the circumference and an external thread formed on the outside. Specifically, the internal thread of the first side cover 1120 may be formed on the inner surface of the protrusion 1121 , and the external thread of the first side cover 1120 may be formed on the outer surface of the protrusion 1121 .

On the other hand, the lighting unit 1200 may have an end of the substrate 1220 formed in a cylindrical shape and may include a screw thread formed along the outer surface of the circumference.

Accordingly, the external thread of the first side cover 1120 and the thread of the shield cover fixing ring 1150 are closely coupled, and the internal thread of the first side cover 1120 and the thread of the substrate 1220 of the lighting unit 1200 are threaded. By being in close contact with each other, the first side cover 1120 can be simultaneously fastened to the shield cover fixing ring 1150 and the substrate 1220 of the lighting unit 1200 .

On the other hand, since the shielding cover first end 1111 is inserted and fastened into the second recessed part 1154 as described above, the shielding cover 1110 and the lighting unit 1200 and the substrate 1220 are the shield cover fixing ring 1150 and the first 1 It can be fastened together by the side cover 1120 and fixed.

In the conventional explosion-proof lighting fixture 1000, the cover part 1100 and the lighting part 1200 mounted inside the cover part 1100 are closely fastened to form an integral body, so the lighting part 1200 is replaced with another lighting part 1200 as needed. In this case, there was a problem in that the entire explosion-proof luminaire 1000 in which the cover part 1100 and the lighting part 1200 were integrally formed had to be replaced.

However, in the explosion-proof light fixture 1000 according to an embodiment of the present invention, the first side cover 1120 and the shield cover fixing ring 1150 are detachably provided at one end of the light fixture, so that the first side cover 1120 ), since the lighting part 1200 provided inside the cover part 1100 is spaced apart from the cover part 1100, when removing the lighting part 1200, pull the lighting part 1200 to the opposite end of the end provided with the first side cover 1120. can be removed Therefore, the lighting unit 1200 disposed inside the cover unit 1100 can be easily replaced as needed.

In the explosion-proof luminaire 1000 according to another embodiment of the present invention, the outer surface and the second external protrusion 1153 of the shield cover 1110 inserted and fastened to the second groove portion 1151 of the shield cover fixing ring 1150. A second explosion-proof molding unit 1160 may be formed between the inner surfaces of the .

Similar to the above, the second explosion-proof molding unit 1160 is configured to seal the inside of the explosion-proof lamp 1000, and may be made of, for example, an epoxy resin, but is not limited thereto.

In addition, the second inner protrusion 1152 protrudes longer toward the shield cover 1110 to be inserted and fastened than the second outer protrusion 1153 , thereby shielding the second explosion-proof molding unit 1160 from the light irradiated from the lighting unit 1200 . can do it In general, the explosion-proof molding part may be accelerated in deformation by the light irradiated from the lighting unit 1200 , and thus the sealing property of the explosion-proof lighting fixture 1000 may be deteriorated, thereby shortening the lifespan.

In the present invention, by configuring the second inner protrusion 1152 of the shield cover fixing ring 1150 to protrude longer toward the shield cover 1110 that is inserted and fastened than the second outer protrusion 1153, the second explosion-proof molding part ( 1160 ) may be shielded from the light irradiated from the lighting unit 1200 to prevent acceleration of deformation of the explosion-proof molding unit by the light.

Various embodiments of the present invention are disclosed below.

(1) In the explosion-proof luminaire 1000, the cover unit (1100); a lighting unit 1200 disposed inside the cover unit 1100 and irradiating light when power is applied; and a cooling unit 1300 disposed inside the lighting unit 1200 to cool the lighting unit 1200;

The cover part 1100 is a shielding cover 1110 of a cylindrical shield 1110 with both sides open, the shielding cover 1110 including a shielding cover first end 1111 and a shielding cover second end 1112; a first side cover 1120 provided to be fastened to the first end 1111 of the shielding cover; A tubular shielding cover support 1130 with both sides open, including a shielding cover supporter first end 1136 and a shielding cover supporter second end 1137, and the shielding cover second end 1112 is inserted and fastened to the shielding cover a shielding cover support portion 1130 for supporting the shielding cover 1110, including a first groove portion 1131 at the first end 1136 of the support portion; and a second side cover 1140 provided to close the shield cover supporting part second end 1137 and having a through hole 1141 formed therein so that the cooling unit first end 1301 is inserted and fastened.

The lighting unit 1200 includes a substrate 1220 provided with a plurality of light emitting units 1210 arranged along the length direction of the cover unit 1100 so as to form a hollow portion 1230 and radially upright to emit light. is composed,

The cooling unit 1300 includes a closed cooling unit first end 1301, an open cooling unit second end 1302, and a closed cooling unit first end 1301 and an open cooling unit second end 1302. It has a tubular structure including a connection part 1303 for connecting, and the cooling part first end 1301 and the connection part 1303 are inserted and fastened into the through hole 1141 of the second side cover 1140 and the lighting part 1200 of the It is disposed in the hollow part 1230 and the second end 1302 of the cooling part is disposed outside the cover part 1100,

Cooling water is supplied from the outside of the cover unit 1100 to the inside of the cover unit 1100 through the second end 1302 of the cooling unit, then flows along the connection unit 1303, and then flows backward from the first end 1301 of the cooling unit. Explosion-proof luminaire 1000, characterized in that the cooling unit 1300 is configured to cool the lighting unit 1200 by being discharged to the outside of the cover unit 1100 again.

(2) The cooling unit 1300 includes a cooling water external flow path 1310 and a cooling water internal flow path 1320, the cooling water internal flow path 1320 is disposed inside the cooling water external flow path 1310, both ends are open tubular The cooling water external flow path 1310 has a cylindrical shape configured to surround the cooling water internal flow path 1320 and includes a closed external flow path first end 1311 and an open external flow path second end 1312, and the cooling water internal flow path ( One end of 1320 and the first end 1311 of the external flow path enter the inside of the cover 1100 through the through hole 1141 of the second side cover 1140, and the coolant flows inside the coolant external flow path 1310 and the inside of the coolant. The cooling water is supplied to the inside of the cover unit 1100 through any one of the flow paths 1320 and then flows to the end of the cooling unit 1300 located in the hollow portion 1230 of the lighting unit 1200 through the connection unit 1303, and then the cooling water again Explosion-proof luminaire 1000 that is discharged to the outside of the cover unit 1100 along the remaining flow paths not used for supplying cooling water among the external flow path 1310 and the cooling water internal flow path 1320 .

(3) The first groove portion 1131 of the shielding cover support portion 1130 is a first inner protrusion 1132 and a first outer protrusion 1133 protruding toward the shielding cover 1110 to be inserted and fastened in the longitudinal direction, and the insertion The shield cover 1110 to be fastened includes a first depression 1134 that is depressed opposite to the first inner protrusion 1132 and the first outer protrusion 1133 to connect, the first inner protrusion 1132 is the shield cover It is formed on the inside along the circumference of the support part 1130 , and the first external protrusion 1133 is formed on the outside along the circumference of the shield cover support part 1130 , and the shield cover second end 1112 has a first internal protrusion 1132 . ) and the first recessed portion 1134 formed between the first external protrusion 1133 and inserted and fastened, between the outer surface of the shielding cover 1110 which is inserted and fastened and the inner surface of the first external protrusion 1133 for a first explosion-proof A molding part 1135 is formed, and the first inner protrusion 1132 protrudes longer toward the shielding cover 1110 to be inserted and fastened than the first external protrusion 1133, thereby illuminating the first explosion-proof molding part 1135. 1200) to shield from light irradiated from, explosion-proof luminaire.

(4) The cover part 1100 further includes a shield cover fixing ring 1150, and the shield cover fixing ring 1150 includes a second groove part 1151 so that the shield cover first end 1111 is inserted and fastened. , The second groove portion 1151 is a second inner protrusion 1152 and a second outer protrusion 1153 protruding toward the shield cover 1110 to be inserted and fastened in the longitudinal direction, and the shield cover 1110 to be inserted and fastened to the opposite side. It is depressed and includes a second recessed portion 1154 connecting the second inner protrusion 1152 and the second outer protrusion 1153 , and the second inner protrusion 1152 is along the circumference of the shield cover fixing ring 1150 . It is formed on the inside and the second external protrusion 1153 is formed on the outside along the circumference of the shield cover fixing ring 1150, and the shield cover first end 1111 has a second internal protrusion 1152 and a second external protrusion ( 1153) is inserted and fastened to the second recessed portion 1154 formed between, a thread is formed on the inside along the circumference of the second inner protrusion 1152, and the first side cover 1120 is formed on the inside along the circumference. It includes a thread and an external thread formed on the outside, and the lighting unit 1200 has a cylindrical end of the substrate 1220 and includes a thread formed along the outer surface of the circumference, and the external thread of the first side cover 1120 and The screw thread of the shield cover fixing ring 1150 is closely fastened, and the inner screw thread of the first side cover 1120 and the screw thread of the lighting unit 1200 and the substrate 1220 are closely fastened, thereby the shield cover 1110 and the lighting unit 1200. Explosion-proof luminaire 1000, characterized in that the substrate 1220 is fastened together and fixed.

(5) A second explosion-proof molding unit 1160 is formed between the outer surface of the shielding cover 1110 to be inserted and fastened and the inner surface of the second outer protrusion 1153 , and the second inner protrusion 1152 is a second outer protrusion By protruding longer toward the shielding cover 1110 to be inserted and fastened than (1153), the second explosion-proof molding unit 1160 is shielded from the light irradiated from the lighting unit 1200, an explosion-proof luminaire.

As described above, although the present invention has been described with reference to limited embodiments and drawings, the present invention is not limited thereto, and the technical idea of the present invention and the following by those of ordinary skill in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

Explosion-proof luminaire 1000, cover unit 1100, lighting unit 1200, cooling unit 1300

Claims (5)

In the explosion-proof luminaire 1000,
cover unit 1100;
a lighting unit 1200 disposed inside the cover unit 1100 and irradiating light when power is applied; and
a cooling unit 1300 disposed inside the illumination unit 1200 to cool the illumination unit 1200;
including,
The cover part 1100 is
A shielding cover 1110 including a shielding cover first end 1111 and a shielding cover second end 1112 as a tubular shielding cover 1110 with both sides open;
a first side cover 1120 provided to be fastened to the first end 1111 of the shielding cover;
A tubular shielding cover support part 1130 with both sides open, including a shielding cover support part first end 1136 and a shielding cover support part second end 1137, and a shielding cover so that the shielding cover second end 1112 is inserted and fastened. a shielding cover support portion 1130 for supporting the shielding cover 1110, including a first groove portion 1131 at the first end of the support portion 1136; and
a second side cover 1140 provided to close the shielding cover support part second end 1137 and having a through hole 1141 formed so that the cooling unit first end 1301 is inserted and fastened;
including,
The lighting unit 1200 includes a substrate 1220 provided with a plurality of light emitting units 1210 arranged along the longitudinal direction of the cover unit 1100 to form a hollow portion 1230 and radially upright to emit light. is composed,
The cooling unit 1300 includes a closed cooling unit first end 1301, an open cooling unit second end 1302, and a closed cooling unit first end 1301 and an open cooling unit second end 1302. It has a tubular structure including a connection part 1303 for connecting, and the cooling part first end 1301 and the connection part 1303 are inserted and fastened into the through hole 1141 of the second side cover 1140 and the lighting part 1200 of the It is disposed in the hollow part 1230 and the second end 1302 of the cooling part is disposed outside the cover part 1100,
Cooling water is supplied from the outside of the cover unit 1100 to the inside of the cover unit 1100 through the second end 1302 of the cooling unit, then flows along the connection unit 1303, and then flows backward from the first end 1301 of the cooling unit. Explosion-proof luminaire 1000, characterized in that the cooling unit 1300 is configured to cool the lighting unit 1200 by being discharged to the outside of the cover unit 1100 again. The method according to claim 1,
The cooling unit 1300 includes a cooling water external flow path 1310 and a cooling water internal flow path 1320,
The cooling water internal flow path 1320 is disposed inside the cooling water external flow path 1310 and has a cylindrical shape with both ends open,
The cooling water external flow path 1310 has a cylindrical shape configured to surround the cooling water internal flow path 1320 and includes a closed external flow path first end 1311 and an open external flow path second end 1312,
One end of the cooling water internal flow path 1320 and the external flow path first end 1311 are inside the cover part 1100 through the through hole 1141 of the second side cover 1140,
Cooling water is supplied to the inside of the cover part 1100 through any one of the coolant external flow path 1310 and the coolant internal flow path 1320 , and then cooled located in the hollow part 1230 of the lighting part 1200 through the connection part 1303 . After flowing to the end of the part 1300, it is discharged to the outside of the cover part 1100 along the remaining flow paths not used for supplying cooling water among the coolant external flow path 1310 and the coolant internal flow path 1320. Explosion-proof luminaire 1000). The method according to claim 1 or 2,
The first groove portion 1131 of the shielding cover support portion 1130 has a first inner protrusion 1132 and a first outer protrusion 1133 protruding toward the shielding cover 1110 to be inserted and fastened in the longitudinal direction, and a shield to be inserted and fastened. The cover 1110 is recessed to the opposite side and includes a first recessed portion 1134 connecting the first inner protrusion 1132 and the first outer protrusion 1133,
The first inner protrusion 1132 is formed on the inside along the circumference of the shield cover support 1130 and the first outer protrusion 1133 is formed on the outside along the circumference of the shield cover support 1130,
The shield cover second end 1112 is inserted and fastened to the first recessed portion 1134 formed between the first inner protrusion 1132 and the first outer protrusion 1133,
A first explosion-proof molding part 1135 is formed between the outer surface of the shielding cover 1110 to be inserted and fastened and the inner surface of the first external protrusion 1133,
The first inner protrusion 1132 protrudes longer toward the shielding cover 1110 to be inserted and fastened than the first outer protrusion 1133, thereby shielding the first explosion-proof molding unit 1135 from the light irradiated from the lighting unit 1200. , explosion-proof luminaires. The method according to claim 1 or 2,
The cover part 1100 further includes a shield cover fixing ring 1150,
The shield cover fixing ring 1150 includes a second groove portion 1151 so that the shield cover first end 1111 is inserted and fastened,
The second groove 1151 is a second inner protrusion 1152 and a second outer protrusion 1153 protruding toward the shielding cover 1110 to be inserted and fastened in the longitudinal direction, and the shield cover 1110 to be inserted and fastened, recessed to the opposite side. and a second depression 1154 connecting the second inner protrusion 1152 and the second outer protrusion 1153,
The second inner protrusion 1152 is formed on the inside along the circumference of the shield cover fixing ring 1150 and the second outer projection 1153 is formed on the outside along the circumference of the shield cover fixing ring 1150,
The shield cover first end 1111 is inserted and fastened to the second recessed portion 1154 formed between the second inner protrusion 1152 and the second outer protrusion 1153,
A thread is formed on the inside along the circumference of the second inner protrusion 1152,
The first side cover 1120 includes an internal thread formed on the inside along the circumference and an external thread formed on the outside,
The lighting unit 1200 includes a screw thread formed at the end of the substrate 1220 in a cylindrical shape and formed along the outer surface of the circumference,
The external screw thread of the first side cover 1120 and the screw thread of the shield cover fixing ring 1150 are in close contact, and the inner screw thread of the first side cover 1120 and the screw thread of the lighting unit 1200 substrate 1220 are in close contact and fastened. Explosion-proof lighting fixture 1000, characterized in that by fastening the shield cover 1110 and the lighting unit 1200 and the substrate 1220 together. 6. The method of claim 5,
A second explosion-proof molding unit 1160 is formed between the outer surface of the shielding cover 1110 to be inserted and fastened and the inner surface of the second outer protrusion 1153,
The second inner protrusion 1152 protrudes longer toward the shielding cover 1110 to be inserted and fastened than the second outer protrusion 1153, thereby shielding the second explosion-proof molding unit 1160 from the light irradiated from the lighting unit 1200. , explosion-proof luminaires.

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