KR101974876B1 - Potable LED lighting device for preventing pressure explosion - Google Patents

Abstract

The present invention relates to a portable LED working lamp for pressure resistance and explosion prevention, which can be used when a worker performs a maintenance work in an industrial site with explosion danger caused by a flammable gas like a chemical plant. To this end, provided is the portable LED working lamp for pressure resistance and explosion prevention, in which main parts constituting the working lamp for explosion prevention are easily assembled in a manner of fitting, screwing, etc. to increase coupling strength and airtightness performance between the parts and to completely prevent flame caused by internal explosion and danger of ignition caused by leakage of high temperature gas to an external work space, the body constituting the explosion preventing lamp is integrally formed to maximize an external heat radiation effect, and a globe of the working lamp is manufactured with polycarbonate mixed with a pigment to prevent glare towards a worker.

Description

Portable LED lighting device for preventing pressure explosion

The present invention relates to an LED work light, and more particularly, to a pressure-resistant explosion-proof portable LED work light used when an operator repairs in an industrial site where there is a risk of explosion due to a flammable gas such as a chemical plant.

In general, industrial sites with explosion risks, such as chemical plants, use explosion-proof explosion-proof work that does not allow the flame to leak outside even if an explosion occurs in a container when the worker performs maintenance work.

Therefore, the pressure-resistant explosion-proof work is mandatory to be used in places where there is a risk of explosion, such as chemical plants, oil refineries, and gas storage facilities that handle flammable materials. There is a risk of explosion.

Even if flammable external gas enters into the container during the construction of pressure-resistant explosion-proof work and causes explosion by the spark or heat of the electric circuit inside, it can easily resist explosion pressure and prevent leakage of flame or gas to the outside. Should be

To this end, the explosion-proof work lamp firstly has a mechanical strength to withstand the internal explosion pressure, and secondly, the flame or hot gas generated by the internal explosion exists in the external workspace through the junction of the container. It should not be ignited by flammable gas, and thirdly it must meet the requirements such that the external surface temperature of the vessel does not reach the ignition temperature of the external gas.

However, the conventional pressure-resistant explosion-proof work lamp is satisfied with the mechanical strength to withstand the explosion pressure, but a number of various components constituting the work lamp are simply combined, and since the heat generated from the work lamp is not properly radiated, There is a problem that the resulting spark or hot gas leaks through the junction of the container and ignites the gas present in the external workspace.

In addition, the outer surface temperature of the container reaches the ignition temperature of the external gas, which increases the risk of explosion. Furthermore, the globe covering the work lamp is made of tempered glass. There is a problem that the durability is poor, such as being broken.

The present invention has been made in order to solve the above-mentioned conventional problems, the main components constituting the explosion-proof work lamp is easily assembled in a manner of mixing the method of fitting and screwing, etc. to improve the bonding strength and airtight performance between each component By increasing, it is possible to completely block the risk of spark or hot gas leaking from the internal explosion into the external work space and ignite, and maximize the external heat dissipation effect by integrally constructing the body constituting the explosion-proof, etc. Its purpose is to provide a pressure-resistant explosion-proof portable LED work lamp made of polycarbonate mixed with pigments to prevent glare of workers.

In order to achieve the above object, the present invention, the LED module is a body having a heat dissipation housing attached to the surface and a plurality of first heat dissipation fins integrally formed on the upper periphery of the heat dissipation housing; A heat sink in which a power supply is inserted into and fastened to a center thereof, and a plurality of second heat dissipation fins are integrally formed along the circumferential direction of the heat sink and fastened to the upper surface of the body; A hanger support having a power line inlet formed therein and having a hanger attached to the top thereof to be laminated and fastened to an upper surface of the heat sink; A power supply device having a structure in which a switching mode power supply (SMPS) for power supply control for the LED module is wrapped in a case and press-fitted into a fastening hole of the heat sink; A plurality of LED modules attached to an outer surface of the heat dissipation housing of the body while being connected to the power supply device to supply power; A glove having a top shape of a container surrounding the LED module and provided with a structure in which a mounting end is integrally protruded from an upper outer circumference, the glove is spaced apart from the LED module and emits LED light to the outside; A seating end bent inwardly is formed at a lower end portion so that the mounting end of the glove is seated, and a first female thread for fastening the lock nut is formed on an inner diameter surface of the middle portion, and an upper part extending further upward of the first female thread for fastening the lock nut. The cover is formed of a coupling end for assembly with the body; An airtight O-ring inserted into a gap between the mounting end of the glove and the seating end of the cover; And a lock nut provided in a circular ring shape having a first male thread formed on an outer diameter surface thereof so as to be screwed with the first female thread for fastening the lock nut of the cover in a state in which the cover is laminated on the mounting end of the glove before being fastened to the body. It provides a portable LED work light for explosion-proof, characterized in that configured.

In particular, the lower end of the heat dissipation fin of the body is formed integrally with the second end of the fastening end formed with a second male thread for screwing with the cover downwards, the inner end surface of the coupling end of the cover is coupled to the second male thread It characterized in that the second female thread for the formation.

Preferably, the glove is produced by injection molding using a polycarbonate (PC) as a base material, characterized in that the injection molding by mixing a pigment which is a colorant for preventing glare.

In addition, a guard fastener is further formed at a position inside the mounting end of the cover, and the guard, which is a kind of protective net surrounding the glove, is fixed and assembled by a screw.

Preferably, the hanger support is selected to have a long length or a short length to determine the mounting height of the work lamp according to the work space and the situation, characterized in that the fastening laminated on the upper surface of the heat sink.

The present invention provides the following effects through the problem solving means described above.

First, by assembling the assembly between the main components of the explosion-proof work, such as fitting and screw fastening method to be combined with each other to be airtight, the assembly is not only easy and easy, but also spark or hot gas from the explosion of the internal circuit It can easily be prevented from leaking into the workspace.

For example, by fitting the cover and the glove and tightening it with a lock nut, and then mutually coupling the cover by screwing it into the body, the assembly is simple and easy as well as an internal circuit for supplying the LED module and power thereto. Flames or hot gases from explosions can be easily prevented from leaking into the outside work space.

Second, since the body to which the LED module is attached is exposed to the outside and is directly integrated with the heat sink, the heat transfer path generated from the LED module is shortened, and thus, the LED module and the power supply device (SMPS) The heat generated can be easily radiated to the outside to maximize the heat dissipation effect.

Third, the material of the glove surrounding the LED module is made of polycarbonate (PC), which is a durable plastic, to prevent damage due to impact, and injection molding by mixing the glove with a pigment as a colorant, thus causing the glare of the operator. Can be easily prevented, and thus a safer operation can be made.

1 is a cross-sectional view showing a state in which each component of the explosion-proof explosion-proof movable LED work light according to an embodiment of the present invention.
Figure 2 is a cross-sectional view showing a process of assembling each component of the explosion-proof explosion-proof movable LED work lamp according to an embodiment of the present invention.
Figure 3 is a cross-sectional view showing a state of fully assembled each component of the explosion-proof explosion-proof movable LED work lamp according to an embodiment of the present invention.
Figure 4 is a cross-sectional view showing a state in which each component of the explosion-proof explosion-proof movable LED work light according to another embodiment of the present invention.
5 is a cross-sectional view showing a process of assembling each component of the explosion-proof explosion-proof movable LED work lamp according to another embodiment of the present invention.
Figure 6 is a cross-sectional view showing a state of fully assembling each part of the explosion-proof explosion-proof movable LED work lamp according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 3 show a movable LED work light for explosion-proof explosion-proof according to an embodiment of the present invention, in Figures 1 to 3, reference numeral 10 denotes a body.

The body 10 is made of a heat-conductive material capable of heat dissipation while being a skeleton to which the LED module is attached, and a heat dissipation housing 12 to which the LED module 50 is attached to an outer surface, and an upper end of the heat dissipation housing 12. It comprises a plurality of first heat radiation fins 14 formed integrally with the circumference.

In addition, the heat dissipation housing 12 of the body 10 is manufactured in a hollow structure with an open top so that the power supply device 40 is embedded therein, and in particular, a cover under the first heat dissipation fin 14 of the body 10. The fastening end 18 in which the second male thread 16 is formed for screwing with 70 is integrally projected downward.

The heat sink 20 is directly laminated and fastened to the upper surface of the body 10 provided as described above.

The heat sink 20 has a fastening hole 22 in which a power supply device 40 is inserted and fastened at the center thereof, and a plurality of second heat dissipation fins 24 are formed integrally along the circumferential direction on an outer surface thereof. .

In this case, the power supply device 40 is provided with a structure in which a switching mode power supply (SMPS) 42 is wrapped in a case 44 to control power supply to the LED module. Press-fit into the fastening holes 22 of the c) and are disposed in the heat dissipation housing 12 of the body 10, and a power supply device is provided in the outer upper end of the case 44 and the fastening groove 22 as necessary. At the time of replacement of the 40, screws are formed to facilitate disassembly, respectively, and are provided to enable screwing.

In addition, the heat dissipation housing 12 of the body 10 is made to have a hexagonal cross-section, each of the outer surface of the hexagon is a plurality of LED module 50 is connected to the power supply 40 and the power supply is possible It is attached so that light can be irradiated to the outside.

Therefore, the heat sink 20 is fastened and fastened by a screw or the like in a state in which the heat sink 20 is stacked on the upper surface of the body 10, so that heat generated from the LED module 50 and the power supply device 40, etc. is transferred to the body 10. In addition to being discharged to the outside through the first heat radiation fin 14, the heat generated from the LED module, etc. is further transferred to the heat sink 20 through the body 10 is also emitted to the outside through the heat sink 20 in the LED module, etc. It is possible to maximize the heat dissipation effect of radiating the generated heat to the outside.

In other words, the heat dissipation housing 12 to which the body 10 is attached to the LED module 50 and the first heat dissipation fin 14 exposed to the outside are integrally formed as well as the heat sink 20 to the body 10. ) Is directly fastened, so the heat transfer path for dissipating heat generated from the LED module is shortened, and as a result, heat generated from the LED module and the power supply device 40 (SMPS) can be easily radiated to the outside. The effect can be maximized.

On the other hand, on the heat sink 20, a hanger support 30 capable of supporting a work explosion proof work in a predetermined workplace is laminated and fastened.

The hanger support 30 has a power line inlet 32 for supplying power to the power supply device 40 is vertically penetrated downwards from one side, the explosion-proof work lamp can be hung on the workshop Hanger 34 is attached.

The hanger support 30 provided in this way is laminated on the upper surface of the heat sink 20 and fastened and fixed by screws or the like.

Referring to FIG. 2, as described above, the LED module 50 is attached to the body 10 and the heat sink 20 is fastened, and the power supply 40 is inserted into the heat sink 20. The primary assembly is performed such that the hanger support 30 is laminated and fastened on the heat sink 20, and the secondary assembly for assembling the remaining glove 60, the cover 70, the lock nut 80, and the like. It is done separately.

The glove 60 has a structure of an upper open type container enclosing the LED module 50 and a mounting end 62 is integrally protruded toward the outside in the upper outer circumference thereof to provide light of the LED module 50. It plays a role in releasing to the outside.

In addition, the cover 70 is first assembled with the glove 60, and then serves as a medium and airtightness to finally assemble between the glove 60 and the body 10.

To this end, the cover 70 is formed with a seating end 72 bent inward to the lower end so that the mounting end 62 of the glove 60 is seated, the first internal thread for fastening the lock nut on the inner diameter surface of the middle portion 74 is formed, and the upper end portion extending further upward from the first female screw thread 74 for fastening the lock nut is provided as a structure formed by a coupling end 76 for fastening with the body 10.

In addition, a second female thread 78 is formed on the inner diameter surface of the coupling end 76 of the cover 70 for coupling with the second male thread 16 formed at the fastening end 18 of the body 10. do.

In particular, the lock nut 80 is provided in a circular ring shape in which a first male thread 82 is formed on an outer diameter surface so as to be screwed with the first female thread 74 for fastening the lock nut of the cover 70.

Accordingly, the mounting ring 72 of the glove 60 overlaps with the seating end 72 of the cover 70, and an O-ring for airtightness in the gap between the mounting end 62 and the seating end 72. The lock nut 80 is laminated on the mounting end 62 while the lock nut 80 is inserted, and then the lock nut 80 is rotated in the locking direction so that the first male thread 82 of the lock nut 80 is covered. The lock nut 80 is screwed with the first female thread 74 for fastening the lock nut 70, and the lock nut 80 presses the mounting end 62 of the glove 60.

Therefore, the pressing force by the fastening of the lock nut 80 acts on the mounting end 62 so that the close coupling between the mounting end 62 and the seating end 72 is securely made without any gap, thereby supplying the LED module and power thereto. The internal circuit of the power supply device 40 can easily prevent the spark or hot gas from leaking to the outside work space.

Next, the glove 60 and the cover 70 fastened to each other by the lock nut 80 are fastened to the body 10. In this case, the heat sink 20 and the hanger support are attached to the body 10 as described above. 30 and the like have already been laminated and assembled first.

To this end, the second male screw thread 16 formed at the fastening end 18 of the body 10 has oil interposed between the second female thread thread 78 formed at the coupling end 76 of the cover 70. By screwing, the assembly between the body 10 and the cover 70 is made.

More specifically, as shown in the accompanying FIG. 2, the LED module 50 is attached to the body 10, the heat sink 20 is fastened, and the power supply device 40 is inserted into the heat sink 20. It is fastened, and the primary assembly such as the hanger support 30 is laminated on the heat sink 20 is made separately, and the assembly of the glove 60 and the cover 70 and the lock nut 80, etc. After the second assembly is performed separately, the second male thread 16 formed at the fastening end 18 of the body 10 is connected to the second female thread 78 formed at the engaging end 76 of the cover 70. By screwing, the assembly between the body 10 and the cover 70 is finally made as shown in the accompanying FIG. 3, and the assembly for the pressure-resistant explosion-proof work lamp of the present invention is completed.

In this way, by assembling the assembly between the main components of the explosion-proof operation light, such as fitting and screw fastening method to be hermetically coupled to each other, the assembly is very simple and easy, as well as the LED module and the internal circuit for supplying power thereto Flames or hot gases from explosions can be easily prevented from leaking into the outside work space.

Meanwhile, the material of the glove 60 surrounding the LED module 50 is made of polycarbonate (PC), which is a plastic having excellent impact resistance and durability, to prevent breakage due to external impact as well as to prevent glare. By injection molding by mixing the pigment as a colorant with polycarbonate, it is possible to easily prevent the glare caused by the LED light of the operator, thereby a safer operation can be made.

In addition, a guard fastener 79 is further formed at a position inside the mounting end 62 of the cover 70 to further protect the LED module 50 and the globe 60 surrounding the LED module 50 from external impact. A guard 90, which is a kind of protection net that surrounds the glove 60 in the guard fastener 79, is fixedly assembled by a screw.

4 to 6 is a view showing a explosion-proof explosion-proof movable LED work lamp according to another embodiment of the present invention, compared to the one in which the hanger support 30 is selected to have a long length in comparison with an embodiment of the present invention. Each configuration and operation is the same as the above-described embodiment except for the difference.

That is, the hanger support 30 may be of a short length (see FIGS. 1 to 3 showing one embodiment) or a long length (another embodiment to determine a mounting height of a work lamp according to a work space and a situation). 4 to 6), which are selected to be laminated and fastened to the top surface of the heat sink 20, and the rest of the overall configuration according to another embodiment of the present invention is the same as each configuration and operation of the embodiment. Detailed description will be omitted.

10 body 12 heat dissipation housing
14: first heat radiation fin 16: the second male thread
18: fastening end 20: heat sink
22: fastening hole 24: second heat radiation fin
30: hanger support 32: power line inlet
34: hanger 40: power supply
42: switching mode power supply 44: case
50: LED module 60: globe
62: pedestal 64: O-ring
70: cover 72: seating end
74: first female thread 76: binding end
78: 2nd female thread 79: Guard fastener
80: lock nut 82: first male thread
90: guard

Claims (6)

A body 10 having a heat dissipation housing 12 to which an LED module is attached to a surface, and a plurality of first heat dissipation fins 14 integrally formed at an upper periphery of the heat dissipation housing 12;
A fastening hole 22 is formed in the center to which the power supply device 40 is inserted and fastened, and a plurality of second heat dissipation fins 24 are integrally formed along the circumferential direction on an outer surface of the upper surface of the body 10. Heat sink 20 is fastened to;
A hanger support (30) formed inside the power line inlet (32), and having a structure having a hanger (34) attached to the top thereof to be laminated and fastened to an upper surface of the heat sink (20);
Switching mode power supply 42 for controlling power supply to the LED module is provided in a structure surrounded by a case 44 to press-fit into the fastening hole 22 of the heat sink 20. Power supply device 40;
A plurality of LED modules 50 attached to an outer surface of the heat dissipation housing 12 of the body 10 while being connected to the power supply device 40 to supply power;
The upper open type surrounding the LED module 50 is provided in a structure in which the mounting end 62 is integrally protruded in the upper outer circumference and is spaced apart from the LED module 50 and emits LED light to the outside. Glove 60;
A seating end 72 bent inwardly at a lower end thereof is formed to seat the mounting end 62 of the glove 60, and a first female thread 74 for fastening the lock nut is formed on an inner diameter surface of the middle portion of the glove 60. A cover 70 formed at an upper end portion of the fastening first female screw thread 74 further formed as a coupling end 76 for assembling with the body 10;
An airtight O-ring 64 inserted into a gap between the mounting end 62 of the glove 60 and the seating end 72 of the cover 70;
External diameter such that the cover 70 is screwed with the first female thread 74 for fastening the lock nut of the cover 70 in a state in which the cover 70 is stacked on the mounting end 62 of the glove 60 before being fastened to the body 10. Pressure-proof explosion-proof movable LED work lamp, comprising: a lock nut (80) provided in a circular ring shape having a first male thread (82) formed on a surface thereof.
The method according to claim 1,
Under the first heat radiation fin 14 of the body 10, a fastening end 18 having a second male thread 16 formed therein is formed integrally protruding downwards for screwing with the cover 70, and the cover The explosion-proof explosion-proof movable LED work lamp of claim 70, wherein the inner end surface of the coupling end 76 has a second female thread 78 for engaging with the second male thread 16.
The method according to claim 1,
The glove 60 is produced by injection molding using a polycarbonate (PC) as a base material, but a pressure-resistant explosion-proof portable LED work light, characterized in that the injection molding by mixing a pigment which is a color for preventing glare.
The method according to claim 1,
A guard fastener 79 is further formed at a position inside the seating end 72 of the cover 70, and a guard 90, which is a kind of protection net surrounding the glove 60, is formed by the screw. Explosion-proof explosion-proof movable LED work light, characterized in that the fixed assembly.
The method according to claim 1,
The hanger support 30 is explosion-proof for explosion-proof characterized in that the fastened to the upper surface of the heat sink 20 is selected to have a long length or a short length to determine the mounting height of the work lamp according to the work space and situation Removable LED Work Light.
The method according to claim 1,
Internal pressure of the case 44, the fastening hole 22 of the heat sink 20, the internal pressure, characterized in that the screw is formed to be screwed to facilitate the disassembly and coupling when replacing the power supply device 40 Explosion-proof removable LED work light.

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