KR102094855B1 - LED Explosion Proof Lamp - Google Patents

Abstract

The present invention relates to an LED explosion-proof lamp having excellent heat-radiating performance and an improved structure in which a wire connecting a power supply device to an LED module is prevented from being twisted and snapped. The LED explosion-proof lamp of the present invention comprises: an upper case having a lower surface that is opened and an accommodation room having a certain size inside; a lower case assembled into the lower surface of the upper case to have an upper surface that is opened and an accommodation room having a certain size inside; a lamp housing assembled into the lower case to have a lower surface that is opened and an accommodation room having a certain size inside; an LED module installed in the lamp housing; and a lamp cover installed to cover the opened lower surface of the lamp housing, wherein arc-shaped heat-radiating protrusions having certain length are formed to protrude at certain height from the external circumferences of the upper case, the lower case and the lamp housing.

Description

LED Explosion Proof Lamp

The present invention relates to an LED explosion-proof lamp, and more particularly, it is excellent in resistance and durability to high-temperature and high-pressure environments, and is configured to quickly dissipate heat inside, and is installed and used in an indoor space where a risk of explosion follows. Explosion-proof, etc.

Explosion-proof lamps, which are manufactured to have high resistance to high temperature and high pressure and are not easily damaged by various external environments, are used as lighting lamps used in factories, etc., where there is a risk of explosion, such as chemical substances.

Explosion-proof lamps (hereinafter referred to as 'patent documents') with improved stability of the registered utility model publication No. 0450282 are disclosed as such conventional technologies such as explosion-proof lamps.

The explosion-proof lamp disclosed in the patent document includes a light-emitting socket equipped with a lamp; A housing disposed on the light emitting socket and receiving a ballast for supplying power to the lamp; And it is provided to prevent the overheating of the lamp or ballast or both, it is configured to include a temperature rise prevention unit characterized in that the light emitting socket is a space formed by being fastened to the housing.

In the conventional explosion-proof lamp as described above, a power supply (SMPS) and an LED module for supplying power to the LED module are installed in different housings, and a hole is formed in a coupling portion connecting each housing to provide power to the LED module and power. The wires are connected between the supply devices. In the process of screwing these housings to each other, the internal wires are naturally twisted, and when the twisted state is weighted, there are problems such as that the wires are easily disconnected.

Therefore, there is a need to develop an LED explosion-proof lamp with excellent heat dissipation performance and an improved structure so that the wire connecting the power supply and the LED module is not twisted and disconnected.

KR 20-0450282 Y1 (2010. 09. 10.) KR 20-2016-0000244 U (January 21, 2010) KR 10-0910539 B1 (July 27, 2009) KR 10-1280963 B1 (2013. 06. 26.)

The present invention is to solve the problems of the conventional LED explosion-proof lamp as described above, the problem to be solved by the present invention is excellent heat dissipation performance, the wire connecting the power supply and the LED module is twisted and disconnected It is to provide an explosion-proof LED explosion-proof structure.

The LED explosion-proof lamp according to the present invention for solving the above problems, the bottom surface is opened, the upper case is formed inside the receiving space of a predetermined size; A lower case in which an upper surface is opened while being assembled to the bottom surface of the upper case to form a receiving space of a predetermined size therein; A lamp housing in which a bottom surface is opened while being assembled to the bottom surface of the lower case to form a receiving space of a predetermined size therein; An LED module installed inside the lamp housing; And a lamp cover installed to cover the open bottom surface of the lamp housing, wherein the upper case, the lower case, and an arc-shaped radiating protrusion having a predetermined length are projected to a predetermined height on the outer surfaces of the lamp housing. It is characterized by.

And the present invention is the case of the cylindrical case body having a predetermined diameter of the upper case and the lamp housing; It includes a connecting portion protruding to a predetermined height in the center of the upper surface of the case body, the heat dissipation projections, one end is connected to the outer surface of the connecting portion, the other end is connected to a predetermined length so as to be connected to the lower side of the outer surface of the case body A plurality of first heat dissipation protrusions arranged radially at predetermined intervals; A plurality of second heat dissipation protrusions having a predetermined length such that one end is spaced apart from the outside surface of the connection portion and the other end is connected to the bottom of the outside surface of the case body while being positioned between the plurality of first heat dissipation protrusions; And a plurality of third heat dissipating protrusions having a predetermined length such that one end is spaced apart from the outer surface of the connecting portion and the other end is connected to a lower side of the outer surface of the case body while being positioned between the first heat dissipating protrusion and the second heat dissipating protrusion. Another feature to include.

In addition, the present invention is characterized in that the third heat dissipation protrusion is formed to have a relatively shorter length than the second heat dissipation protrusion.

In addition to this, the present invention is further provided with a cylindrical fixing protrusion having a predetermined diameter while being located at one end of the second heat dissipating protrusion on the lamp housing, and in the lower case, a plurality of insertion grooves into which the fixing protrusion is inserted are formed. It is another feature that the fixing housing is assembled to the bottom surface of the lower case by being inserted into the insertion groove so that the lamp housing is assembled smoothly.

In addition, the present invention is characterized in that the coupling protrusion that is protruded to have a predetermined length in the center of the bottom surface of the lower case is inserted into the connection portion of the lamp housing.

According to the present invention, the power supply device is installed inside the upper and lower cases, and the LED module is installed inside the lamp housing and then covered to allow light to pass through the lamp cover, so that the power supply device and the LED module generate respectively. The heat can be quickly dissipated, and the lower case and the lamp housing are assembled so that they do not run out of each other, thereby preventing the internal wires from being twisted and disconnected.

1 is a perspective view showing an example of an LED explosion-proof lamp according to the present invention.
Figure 2 is an exploded perspective view of Figure 1;
Figure 3 is a front view of Figure 1;
Figure 4 is a perspective view showing an example of the upper case according to the present invention.
5 is a plan view of FIG. 4;
6 is a perspective view showing an example of a lower case according to the present invention.
Fig. 7 is a bottom view of Fig. 6;
8 is a perspective view showing an example of a lamp housing according to the present invention.
9 is a plan view of FIG. 8;
10 is a view showing an example in which the lamp housing is assembled and fixed to the lower case according to the present invention.
11 is a perspective view showing an example of a lamp cover according to the present invention.
12 is a view showing an example in which the LED explosion-proof lamp according to the present invention is assembled and used in a fixed bracket.
13 is a view showing another embodiment of the lower case according to the present invention.
14 is a view showing another embodiment of the lamp housing according to the present invention.
15 (a, b) is a view showing an example in which the lamp housing is assembled to the lower case according to FIGS. 13 and 14;
16 is a cross-sectional view showing an example in which the lamp housing is assembled to the lower case according to the present invention.

Hereinafter will be described in detail in accordance with the accompanying drawings showing a preferred embodiment of the present invention.

The present invention relates to an LED explosion-proof lamp having an excellent heat dissipation performance and an improved structure so that a wire connecting the power supply and the LED module is not twisted and disconnected, and the present invention is as illustrated in FIGS. 1 to 3. It includes a case 10, a lower case 20, a lamp housing 30, an LED module 40 and a lamp cover 50.

The upper case 10 is configured to allow the power supply device 3 to be accommodated in an accommodation space of a predetermined size formed by being assembled with the lower case 20 to be described later while being assembled with the fixing bracket 1 installed in a building or structure. .

3 and 4, the upper case 10 has a predetermined diameter and a bottom surface is opened to form a receiving space of a predetermined size, and a case body 11 and a central portion of the case body 11 It includes a plurality of heat dissipating projections formed radially along the upper outer surface of the case body 11 and the connection portion 12 is formed to protrude to a predetermined height while a hole of a predetermined diameter is formed to penetrate the.

Here, the heat dissipation protrusion of the upper case 10 is largely composed of a first heat dissipation protrusion 13A, a second heat dissipation protrusion 13B, and a third heat dissipation protrusion 13C, as shown in FIGS. 4 and 5.

At this time, the first heat dissipation protrusion 13A is formed at a predetermined distance radially while having a predetermined length, one end of which is connected to the outer surface of the connecting portion 12 and the other end of which is connected to the lower side of the outer surface of the case body 11.

In addition, the second heat dissipation protrusion 13B is positioned between the plurality of first heat dissipation protrusions 13A, so that one end is spaced a predetermined distance from the outer surface of the connection part 12 so that the other end is connected to the lower side of the outer surface of the case body 11. Is formed.

In addition, the third heat dissipation protrusion (13C) is positioned between the first heat dissipation protrusion (13A) and the second heat dissipation protrusion (13B), one end is spaced a predetermined distance from the outer surface of the connection portion 12, the other end is the case body (11) ) Is formed to be connected to the lower side of the outer surface.

In addition to this, the first heat dissipation protrusion 13A is formed to have a higher height as it approaches the connection portion 12, whereby the heat at the center of the case body 11 has a relatively large area. Once through, the heat dissipation is faster.

In addition, the first, second, and third heat dissipation protrusions 13A, 13B, and 13C are respectively formed in an arc shape having a predetermined diameter, whereby the heat dissipation area is relatively wide compared to that in which the heat dissipation protrusions are formed in a straight line, and as a result, The heat dissipation efficiency is further improved.

In addition, the third heat dissipation protrusion 33C is formed to have a relatively short length compared to the second heat dissipation protrusion 13B, 33B, whereby the heat of the central portion of the case body 11 is the first, second, and third heat dissipation protrusion. It can flow more easily into the space between (13A, 13B, 13C).

And a relatively large diameter flange (without reference numerals) is formed around the lower circumference of the case body 11, whereby when the upper and lower cases 10 and 20 are assembled with each other, the flanges are in close contact with each other. Confidentiality is maintained. At this time, a sealing material made of rubber may be installed between the flanges of the upper and lower cases 10 and 20.

A hole formed in the connecting portion 12 of the upper case 10 by the above-described configuration is connected to the power supply device 3 installed inside the upper and lower cases 10 and 20 by inserting one end of the power cable connected to the outside. do.

The lower case 20 is a configuration in which the power supply device 3 is installed in an accommodation space formed by being assembled with the upper case 10 while being assembled on the bottom surface of the upper case 10.

The lower case 20 has a predetermined diameter corresponding to the upper case 10, as shown in Figures 6 and 7, and the upper surface is opened to form a receiving space of a predetermined size inside the case body 21 and , A guide protrusion 22 formed to protrude in a ring shape so as to have a predetermined diameter on the bottom surface of the case body 21 and a plurality of heat radiation formed radially along the outer surface to connect the upper side of the case body 21 It includes a projection (23).

Here, the heat dissipation protrusion 23 of the lower case 20 has a predetermined length so that one end is connected to the outer surface of the guide protrusion 22 and the other end is connected to the upper side along the outer surface of the case body 21, such heat dissipation The projection 23 is formed in an arc shape having a predetermined diameter.

And the bottom surface of the lower case 20 is provided with a coupling protrusion 24 of a predetermined diameter coupled to the lamp housing 30 to be described later, the coupling protrusion 24 is formed with a hole of a predetermined diameter, through these holes Wires for supplying power to the LED module 40 to be described later are installed.

In addition, a plurality of insertion grooves 25 are formed radially between the guide projection 22 and the coupling projection 24, and the fixing projections 33B 'of the lamp housing 30 to be described later are formed in these insertion grooves 25. It is inserted, whereby the lower case 20 and the lamp housing 30 are assembled separately.

At the upper end of the lower case 20, flanges (without reference numerals) that are in surface contact with the upper case 10 are formed, whereby the flanges of the upper and lower cases 10 and 20 are in close contact with each other to be assembled in close contact.

In addition, a thread (not shown) is formed on the inner surface of the upper case 10, and an upper portion of the lower case 20 protrudes a predetermined height from the flange portion to form a thread on the outer surface (not shown). Is further formed, the upper and lower cases (10, 20) may be screwed through this coupling portion.

The lamp housing 30 is assembled to the bottom surface of the lower case 20 and is configured to install the LED module 40 therein.

8 and 9, the lamp housing 30 has a predetermined diameter and a bottom surface is opened to form a receiving space having a predetermined size therein, and the case body 31 It includes a connection portion 32 protruding to a predetermined height in the center portion of the upper surface and a plurality of radiating protrusions formed radially along the outer surface of the case body 31.

And the heat dissipation projections of the lamp housing 30, as shown in Figure 9, the first, second, and third heat dissipation projections 33A, 33B having different lengths while being arranged in an arc shape with a predetermined distance around the connecting portion 32 , 33C).

Here, the first heat dissipating protrusions 33A are arranged at a predetermined distance radially while having a predetermined length so that one end is connected to the outer surface of the connecting portion 32 and the other end is connected to the lower side of the outer surface of the case body 31, The first heat dissipation protrusion (33A) is formed to gradually increase in height as it approaches the connection portion (12), so that the center portion of the case body (11) and the heat inside the connection portion (32) form the first heat dissipation protrusion (33A). It can be quickly dissipated.

And the second heat dissipation projection (33B) is located between the plurality of first heat dissipation projection (33A), one end is spaced a predetermined distance from the outer surface of the connecting portion 32, the other end is connected to the lower side of the outer surface of the case body (31) It is formed as long as possible.

In addition, the third heat dissipation protrusion (33C) is positioned between the first heat dissipation protrusion (33A) and the second heat dissipation protrusion (33B), one end is spaced a predetermined distance from the outer surface of the connecting portion (12, 32), the other end is the case body It is formed to be connected to the lower side of the outer surface of the (31), the third heat dissipating projection (33C) is formed in a relatively short length compared to the second heat dissipating projection (33B) to prevent the heat of the middle portion of the case body (31) It can flow more easily into the space between the 1, 2, 3 radiating protrusions 33A, 33B, 33C.

Since the first, second, and third heat dissipation protrusions 33A, 33B, and 33C are formed in an arc shape having a predetermined diameter, the heat dissipation protrusions may be formed to have a relatively long length compared to those formed in a straight line. The heat dissipation performance is improved by increasing the heat dissipation area.

In addition, a fixed protrusion 33B 'having a predetermined diameter is formed at one end of the second heat dissipation protrusion 33B, and the fixed protrusion 33B' is an insertion groove of the lower case 20 as shown in FIG. 25) is inserted into the lower case 20 and the lamp housing 30 is fixed to a position assembled with each other.

The LED module 40 is installed inside the lamp housing 30 and is configured to irradiate light toward the bottom surface of the lamp housing 30 as power is supplied from the power supply device 3. It is made of a structure in which a plurality of LEDs are arranged radially on a base plate having a predetermined diameter so as to be accommodated in an accommodation space of the lamp housing 30.

The lamp cover 50 is configured to protect the LED module 40 installed inside the lamp housing 30 and refract light so that light emitted from the LED module 40 can be diffused and irradiated to a predetermined range. .

The lamp cover 50 has a predetermined width along the upper circumference of the cover body 51 and the upper cover of the cover body 51, the upper surface is concavely formed to protrude downward to bend the center portion as shown in FIG. It includes a flange portion 52 is formed to extend horizontally to have.

And on the concave upper surface of the cover body 51, as shown in FIG. 11, while being arranged in a cobweb shape, a triangular protrusion 51A having a triangular cross-sectional shape protrudes, and the lamp cover 50 is formed by the triangular protrusion 51A. The light is not easily damaged even by external force, and at the same time, the light irradiated from the LED module 40 is concentrated and irradiated based on the space divided by the triangular protrusion 51A. As a result, the light of the LED is a concave lamp cover ( 50) to prevent excessive dispersion to the surroundings.

Hereinafter, an example in which the LED explosion-proof lamp according to the present invention is assembled will be described.

Referring to FIG. 12, the connection part 12 of the upper case 10 is assembled to one end of the fixed bracket 1 fixedly installed on the ceiling, wall, or structure, and installed through the interior of the fixed bracket 1 The wires are installed to be drawn out into the interior of the upper case 10 through the holes of the connecting portion 12.

And after inserting a wire for supplying power to the LED module 40 through the engaging projection 24 of the lower case 20, then fastening members such as screws (not shown) to the power supply device 3 in the receiving space It is fixed by using.

Then, the LED module 40 is assembled into the receiving space of the lamp housing 30, and the coupling protrusion 24 of the lower case 20 is inserted into the connection portion 32 of the lamp housing 30.

At this time, the fixing protrusion 33B 'of the second heat dissipation protrusion 33B is positioned to be inserted into the insertion groove 25 of the lower case 20, and then the lower case 20 and the lamp housing through a fastening member such as a screw ( 30) is strongly assembled.

To this end, a hole (not shown) of a predetermined diameter is formed in the insertion groove 25, a fastening hole (not shown) is formed in the fixing protrusion 33B ', and the fixing protrusion 33B is inserted into the insertion groove 23. When the ') is inserted, the screw is inserted through a hole (a hole formed in the insertion groove 23) in the receiving space side of the lower case 20 and screwed into a fastening hole (a fastening hole formed in the fixing protrusion 33B'). It can be configured to be combined.

After the lamp housing 30 is assembled to the lower case 20 in this way, the wire inserted through the connecting portion 12 of the upper case 10 is connected to the power supply device 3, and the lower case 10 is coupled. The wire inserted through the projection 24 is connected to the LED module 40 inside the lamp housing 30.

Then, the upper and lower cases 10 and 20 are combined with each other, and the lamp cover 50 is assembled to the bottom surface of the lamp housing 30 to complete assembly.

Meanwhile, the lower case 20 and the lamp housing 30 have been described above as being assembled through screws. Alternatively, the lower case 20 and the lamp housing 30 may be assembled through a structure in which they are mutually coupled.

In this example, an arc-shaped insertion groove 25 'is formed around the coupling protrusion 24 on the bottom surface of the lower case 20, and is predetermined along both sides of the insertion groove 25'. The width of the locking jaw 25A is formed, the lamp housing 30 may be made of a predetermined width of the locking groove (H) is formed on the upper portion of the fixing projection (33B ') as shown in FIG.

Through the above configuration, as shown in FIG. 15 (a), the fixing protrusion 33B 'is inserted into one end of the insertion groove 25', and then the lamp housing 30 is rotated at a predetermined angle to turn the locking jaw ( 25A) is inserted into the locking groove (H), whereby the lower case 20 and the lamp housing 30 can be firmly assembled to each other without using separate screws.

At this time, as shown in FIG. 15 (b), an inclined surface of a predetermined angle is formed in the engaging groove H, and the lamp housing 30 is naturally rotated in the process of being assembled by rotating the lamp housing 30 at a predetermined angle through the inclined surface. It may be configured to act to force the force to be in close contact with the bottom surface of the lower case 20, through which the airtightness of the upper and lower cases 10, 20, the inner receiving space and the receiving space of the lamp housing 30 is secured. .

At this time, as shown in Figure 16, the connection portion 32 is spaced a predetermined distance around the hole, the installation groove 32A of a predetermined depth is formed in a ring shape, and then the first sealing material (S1) is inserted, the connection portion 32 The inside of the stepped (no drawing sign) is formed, and then the second sealing material (S2) is inserted.

Accordingly, when the fixing protrusion 33B 'of the lamp housing 30 is inserted into the insertion groove 25' and then rotated at a predetermined angle, the lamp housing 30 and the lower case 20 along the inclined surface of the locking groove H ) As the close contact with each other, the first and second sealing materials S1 and S2 are naturally pressed, and thereby the airtightness of the assembly part is further secured.

At this time, the second sealing material (S2) is a taper of a predetermined angle is formed on the inner surface, a taper of a predetermined angle is formed on the outer surface of the engaging projection (24), and the second sealing material (S2) is formed by the engaging projection (24). When pressurized, the coupling protrusion 24 is naturally inserted into the second sealing material S2, thereby expanding the second sealing material S2 to the outside, and as a result, the second sealing material S2 is in the hole of the connecting portion 32. The airtightness between the holes of the coupling protrusion 24 and the connecting portion 32 is further secured while being closely adhered to the side surface.

In the above, for convenience of description, the drawings showing the preferred embodiments and the components shown in the drawings have been described with reference numerals and names, but this is an embodiment according to the present invention. It should be construed that the scope of the right is not to be interpreted, and that the simple substitution from the description of the invention to a configuration that functions the same as the change to various predictable shapes is within the range that can be changed by a person skilled in the art for easy implementation. You will see it as self-evident.

1: Fixed bracket 2: LED explosion-proof light
3: Power supply 10: Upper case
11: Case body 12: Connection
13A: first radiating protrusion 13B: second radiating protrusion
13C: third radiating protrusion 20: lower case
21: case body 22: guide projection
23: radiating projection 24: coupling projection
25: Insertion groove 25 ': Insertion groove
25A: Jam 30: Lamp housing
31: case body 32: connection
32A: Installation groove 33A: First heat dissipation projection
33B: second radiating projection 33B ': fixed projection
33C: third heat dissipation projection 40: LED module
50: lamp cover 51: cover body
51A: Triangular projection 52: Flange
52A: Pressurized projection A: Slope
H: Hanging groove S1: First sealing material
S2: Second sealing material

Claims (5)

An upper case 10 in which a bottom surface is opened to form a receiving space of a predetermined size therein;
A lower case 20 in which an upper surface is opened while being assembled to the bottom surface of the upper case 10 to form a receiving space of a predetermined size therein;
A lamp housing 30 that is assembled to the bottom surface of the lower case 20 and the bottom surface is opened to form a receiving space of a predetermined size therein;
An LED module 40 installed inside the lamp housing 30; And
A lamp cover 50 installed to cover an open bottom surface of the lamp housing 30;
Including,
On the outer surfaces of the upper case 10, the lower case 20 and the lamp housing 30, arc-shaped radiating projections having a predetermined length are formed to protrude to a predetermined height,
The upper case 10 and the lamp housing 30,
Cylindrical case bodies having a predetermined diameter (11, 31);
Connection parts (12, 32) protruding to a predetermined height in the center portion of the upper surface of the case body (11, 31);
Including,
The heat dissipation projection,
A plurality of first is arranged at a predetermined distance radially while having a predetermined length so that one end is connected to the outer surface of the connecting portion (12, 32), and the other end is connected to the lower side of the outer surface of the case body (11, 31). Heat dissipation projections 13A, 33A;
While being positioned between the plurality of first heat dissipating protrusions 13A, 33A, one end is spaced apart from the outer surfaces of the connecting portions 12, 32, and the other end is connected to the lower side of the outer surfaces of the case bodies 11, 31. A plurality of second heat dissipation protrusions 13B and 33B having a predetermined length; And
While being positioned between the first heat dissipating protrusions 13A, 33A and the second heat dissipating protrusions 13B, 33B, one end is spaced apart from the outer surface of the connecting portions 12, 32, and the other end is the case body 11 , 31) a plurality of third heat dissipation projections (13C, 33C) having a predetermined length to be connected to the lower side of the outer surface;
It includes,
At one end of the second radiating protrusion 33B of the lamp housing 30,
A cylindrical fixing protrusion 33B 'having a predetermined diameter is provided,
In the lower case 20,
A plurality of insertion grooves 25 into which the fixing protrusions 33B 'are inserted are formed, and the fixing protrusions 33B' are assembled to the bottom surface of the lower case 20 by being inserted into the insertion grooves 25. The lamp housing 30 is assembled so as not to waste,
A coupling protrusion 24 that protrudes downward so as to have a predetermined length in the middle portion of the bottom surface and is inserted into the connection portion 32 of the lamp housing 30 is provided,
An arc-shaped insertion groove 25 'is formed around the engaging projection 24, and a locking jaw 25A of a predetermined width is formed along both sides of the insertion groove 25',
In the lamp housing 30,
A locking groove H of a predetermined width is formed on the fixing protrusion 33B ',
After the fixing protrusion 33B 'is inserted into one end of the insertion groove 25', the lamp housing 30 is rotated at a predetermined angle so that the locking groove H is inserted into the locking jaw 25A. Mutually assembled,
The connection portion 32,
The installation groove 32A having a predetermined depth is formed in a ring shape, and the first sealing material S1 is inserted,
In the engaging groove (H),
An inclined surface of a predetermined angle is formed,
LED explosion-proof lamp, characterized in that the lamp housing 30 is rotated at a predetermined angle to assemble the lamp housing 30 to the bottom surface of the lower case 20 to act as a force.
delete The method according to claim 1,
The third heat dissipation protrusion (13C, 33C) is an LED explosion-proof lamp characterized in that the length is formed relatively short compared to the second heat dissipation protrusion (13B, 33B). delete delete

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