KR101175678B1 - Led lamp with slant radiating fins - Google Patents

Abstract

PURPOSE: An LED lamp comprising sloping heat sink fins is provided to smoothly dissipate heat from light emitting diodes because ventilation holes are formed in the heat sink fins to accelerate the flow of air. CONSTITUTION: A main body(1) comprises a plurality of heat sink fin insertion holes(11) and a fixing element coupling protrusion(12). A disk cap(2) is attached to the lower part of the main body. An LED board(4) is located under the disk cap. A light diffusion shade(5) is detachably installed in the disk cap. A power supply unit(6) is installed inside the body or a cover(7) and drives an LED(43).

Description

LED lamp with slant radiating fins {LED lamp with slant radiating fins}

The present invention relates to an LED lamp with an inclined heat dissipation fin, and more specifically, by forming a ventilation hole in the heat dissipation fin of the LED lamp, the wind is circulated through the ventilation hole to smoothly dissipate heat generated from the light emitting diodes, The present invention relates to an LED lamp with an inclined heat dissipation fin that enables not only significant reduction but also light weight.

Recently, the LED lamp is widely used in homes and offices, there was a problem affecting the service life of the lamp due to heat generation.

Because LED has high photoelectric conversion efficiency, power consumption is very low as 5W, so there is little heat generation, and because it is not thermal and discharge light emission, it does not need extra time, so it is turned on and off quickly. In addition, since there is no gas or filament, it is strong against shock, safe, and adopts stable DC lighting method, which consumes less power, enables repeated pulse operation, reduces optic nerve fatigue, and is semi-permanent. . In addition, the lighting effect of various colors can be produced, and miniaturization is possible by using a small light source.

However, such LEDs have a problem of affecting brightness and service life due to heat generated when the LED chip is driven. In other words, if the heat generated from the LED lighting device has a constant inside, there is a problem that the temperature of the LED device is increased to inhibit efficient light emission and the life is abruptly reduced due to thermal stress.

In order to solve this problem, conventionally, attempts have been made to increase the heat dissipation effect by providing a heat dissipation fin in contact with the LED substrate to increase the heat dissipation surface, but there is a problem that is insufficient to obtain a sufficient heat dissipation effect.

Accordingly, an object of the present invention is to incline the heat radiation fins of the LED light, which is installed to be embedded or protruded from the ceiling or wall of the building, so that the wind flows between the heat radiation fins to more effectively dissipate heat generated from the light emitting diodes. It is to provide a LED lamp with a photo heat radiation fin.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

LED lighting lamp is applied to the inclined heat dissipation fin according to one aspect of the present invention for achieving the above object, and a cylindrical body formed with a plurality of heat dissipation fin insertion groove at a predetermined interval in the vertical direction from the outer peripheral surface; Vertical plate and the lower end of the vertical plate is bent to form a horizontal plate is successively bent to have a longitudinal cross-section, the inner side of the vertical plate is formed with a coupling protrusion piece is inserted into the heat radiation fin insertion groove of the cylindrical body, the coupling A plurality of heat dissipation fins which are inserted into the heat dissipation fin insertion grooves of the cylindrical body and coupled; A bottom surface of the LED substrate having a plurality of LEDs fixed radially at a distance and a predetermined distance, and directly or indirectly in thermal contact with the plurality of heat dissipation fins, the LED substrate being detachably fixed to the bottom of the cylindrical body; LED power supply for driving the LED by converting an AC voltage into a DC voltage when the power switch is turned "on" in the state of being placed inside the cylindrical body or the cover that is detachably installed on the upper surface of the cylindrical body. Including, the heat dissipation fin is configured to be inclined with respect to the central axis of the cylindrical body, one or more vent holes are formed in the vertical plate of the heat dissipation fin, the vent hole, the contact portion of the heat dissipation fins in contact with the outer peripheral surface of the cylindrical body If the position is formed in the 1/5 to 3/5 area to the curved curved end of the heat radiating fins, and the position of the vent hole on a certain vertical plate spaced apart from the bottom by a predetermined distance, the first adjacent to the arbitrary vertical plate The vent position of the first vertical plate is at a higher position, the second of which is adjacent to the first vertical plate. The position of the ventilation hole formed in the vertical plate is formed at a position higher than the position of the ventilation hole formed in the first vertical plate, so that the overall arrangement shape of the ventilation hole formed in each vertical plate is arranged in a spiral direction with respect to the central axis of the cylindrical body. It is characterized by.

According to the present invention, it is possible to smoothly dissipate heat generated from the light emitting diodes by forming a spiral upward air flow in the heat radiation fins of the LED lamps in which the inclined heat sink fins are installed to be embedded or protruded from the ceiling or wall of the building.

1 is an exploded perspective view showing an LED lamp with an inclined radiating fin according to an embodiment of the present invention.
Figure 2 is a perspective view of the LED lamp to which the inclined heat dissipation fin is applied according to an embodiment of the present invention.
3 is a perspective view showing an LED lamp to which the inclined heat dissipation fin is applied according to another embodiment of the present invention.
Figure 4 is a view for explaining another embodiment of the radiation fin attachment according to the present invention.
5a to 5c are views for explaining another embodiment of the heat radiation fin is attached according to the present invention.
Figure 6 is a plan view of the LED lamp to which the inclined radiating fin according to another embodiment of the present invention.
7A to 7C are cross-sectional views taken along the line 'IV-IV' shown in FIG. 6, and show various exemplary shapes of the heat radiation fin through holes.
FIG. 8 is a perspective view illustrating an LED lamp to which an inclined heat dissipation fin shown in FIG. 6 is applied.
FIG. 9 is a cross-sectional view taken along the line 'V-V' of FIG. 6.
FIG. 10 is a cross-sectional view taken along line VI-VI of FIG. 6.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used to refer to the same components even though they are shown in different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

Hereinafter, with reference to the accompanying drawings, it will be described an LED lamp applied to the inclined radiating fin according to an embodiment of the present invention.

As shown, the LED lamp is applied inclined radiating fins according to the present invention, a plurality of radiating fin insertion grooves 11 are formed at a predetermined interval in the vertical direction from the outer peripheral surface, a plurality of fastener coupling protrusions 12 are formed on the inner peripheral surface And a cylindrical body 1 extruded to protrude in the vertical direction.

The disc-shaped cap 2 is attached to the lower part of the main body 1, and the disc-shaped cap 2 passes the electric wire through the center point of the disc 22 in which the strip-shaped guide plate 21 is integrally bent toward the bottom from the periphery. A hole 221 is drilled, and a plurality of fastener through holes 222 are drilled in the first flat plate portion 22a of the disc 22 formed outside of the wire through hole 221, and the first flat plate portion 22a. A plurality of heat dissipation fin through holes 223 are radially drilled at a predetermined angle in the second flat part 22b of the disc 22 formed between the band guide plate 21 and the band-shaped guide plate 21.

In addition, a plurality of fastener passage holes 224 are formed in the periphery of the second flat plate portion 22b, and the upper surface of the first flat plate portion 22a is in close contact with the bottom surface of the cylindrical body 1. .

On the other hand, the heat dissipation fins 3 are attached to the disc 22, the heat dissipation fins 3 are bent by pressing a thin iron plate using a press die, the outer surface is curved in the vertical plate 31 and the horizontal plate 32 is curved It is successively formed to have a shape so that the longitudinal section has an inclination, the inner surface of the vertical plate 31 has a configuration in which the engaging projection piece 311 is inserted into the heat radiation fin insertion groove 11 of the cylindrical body (1) is formed extended After the 31 is inserted through the heat dissipation fin through hole 223 at the bottom of the disc-shaped cap 2, the engaging projection 311 is fitted into the heat dissipation fin insertion groove 11 of the cylindrical body (1).

In addition, as shown in FIG. 4, the heat dissipation fin 3 may be attached to the top surface of the disc 22 instead of being fitted at the bottom of the disc 22 as described above. .

As an attachment method, it is preferable to directly attach the bottom surface of the radiating fin 3 vertical plate 31 and the upper surface of the original plate 22 by a known method such as welding or bonding. In addition, it is possible to obtain an advantage that the heat dissipation effect is improved by increasing the amount of thermal conductivity due to the improvement in contact properties.

As another embodiment, as shown in Figures 5a to 5d, the heat dissipation fins 3 and the disc 22 can be configured to interlock with each other.

That is, as shown in FIG. 5A or 5B, fastening holes 61 and 63 and fastening protrusions 62 and 64 are provided in the vertical plate 31 and the disc 22 of the heat dissipation fin 3 to correspond to each other. The fastening holes and fastening protrusions (ie, 61 and 64 and 62 and 64) may be configured to interlock with each other to simplify the process and improve work productivity. In addition, the removal is relatively easy, convenient for maintenance.

5A illustrates a case in which the heat dissipation fin 3 is rotated counterclockwise or clockwise along a central axis to interlock with the disc 22. The embodiment of FIG. 5B pushes the heat dissipation fin 3 toward the central axis. This is an example in the case of combining with (22).

5C is an enlarged view of the fastening hole and the fastening protrusion, and FIG. 5D is an enlarged view showing a state in which the heat dissipation fins 3 and the disc 22 are engaged.

An LED substrate 4 is located below the disc shaped cap 2, and the LED substrate 4 is perforated with a wire through hole 41 and a plurality of fixture through holes 42 around the center point and the bottom thereof. There is a configuration in which a plurality of LEDs 43 are radially fixed at a predetermined interval and distance, the upper surface of the heat dissipation fin (3) in the state that is placed inside the band-shaped guide plate 21 at the bottom of the disc-shaped cap (2) Bottom surface of the cylindrical body 1 together with the heat dissipation fins 3 and the disc shaped cap 2 through the fasteners 8 which are in close contact with the bottom surface of the horizontal plate 32 and are fastened to the fastener coupling protrusion 12. Removably fixed to the installation.

In addition, the LED lamp is applied to the inclined heat dissipation fin according to the present invention is mounted on the light diffusion shade 5 detachably installed in the disc-shaped cap (2), the cylindrical body (1) or the inside of the cover (7) LED driving power supply unit 6 for driving the LED 43 in a state, and the LED driving power source in the outer periphery and the upper end of the round socket-shaped coupling portion 72 protruding in the center of the upper surface of the hemispherical cap 71 A spiral power supply terminal 73 and a hemispherical power supply terminal 74 for supplying an alternating voltage to the supply unit 6 are respectively provided, and a plurality of fastener passage holes 75 are drilled inside the bottom periphery of the hemispherical cap 71. In the form of blocking the upper opening of the cylindrical body (1) to be detachable to the upper surface of the cylindrical body (1) through a fastener (8) coupled to the fastener coupling protrusion 12 of the cylindrical body (1) Cover 7 is provided.

In this case, a plurality of air distribution holes 225 and 44 may be further drilled into the first flat plate portion 22a of the disc-shaped cap 2 and the LED substrate 4 corresponding thereto. In addition, by cutting a portion of the bottom portion of the engaging projection piece 311 protruding on the inner surface of the vertical plate 31 of the heat dissipation fin (3) to allow air to flow between the outer peripheral surface of the cylindrical body (1) and the contact portion of the heat dissipation fins (3) Distribution grooves 312 are formed.

In addition, a fixture through-hole 321 through which a fixture 8 for detachably fixing the light diffusion shade 5 to the disc-shaped cap 2 can be passed to the outer end of the horizontal plate 32 of the heat dissipation fin 3. ) Is formed.

On the other hand, the hemispherical cap 71 of the cover 7 is preferably formed with a plurality of air distribution holes 76 having a rectangular arc shape at a predetermined interval.

Hereinafter, the operation and role of each component of the LED lamp to which the inclined radiating fin according to the present invention is applied will be described in more detail.

The main body 1 is formed into a cylindrical shape by extrusion molding using aluminum alloy as a raw material. A plurality of heat sink fin insertion grooves 11 are formed at predetermined intervals in the vertical direction from the outer circumferential surface thereof, and a plurality of fastener coupling protrusions 12 are formed to protrude in the vertical direction at a predetermined angle from the inner circumferential surface thereof.

The disc-shaped cap 2 is manufactured by cutting and bending a thin iron plate through a press die, and is directed toward the bottom from the periphery of the disc 22, which is composed of the first and second flat plate portions 22a and 22b. Is bent to form a band-shaped guide plate 21 integrally, the center hole of the disc 22 punctures the wire through hole 221. In addition, a plurality of fastener through holes 222 are drilled in the first flat plate portion 22a of the disc 22 formed outside the wire through hole 221, and the first flat plate portion 22a and the strip-shaped guide plate 21 are formed. A plurality of heat dissipation fin through-holes 223 are radially drilled at a predetermined angle in the second flat plate portion 22b of the disc 22 formed therebetween, and a plurality of fastener through holes are formed at the periphery of the second flat plate portion 22b. 224 has a perforated configuration at predetermined intervals.

The disc shaped cap 2 having such a configuration is positioned so that the top surface of the first flat plate portion 22a is in close contact with the bottom surface of the cylindrical body 1. In addition, when fixing the LED substrate 4 to the bottom of the cylindrical body 1 through a fastener 8 such as a screw, the bottom surface of the cylindrical body 1 together with the heat dissipation fins 3 and the LED substrate 4. It is fixedly installed so that the light diffusion shade 5 including the heat radiation fins 3 and the LED substrate 4 can be installed. In addition, the heat generated when the LED 43 is driven is performed to transfer the heat radiation fins 3 and the cylindrical body 1.

The heat dissipation fins 3 are manufactured through a process of cutting and bending a thin iron plate through a press die like the disc cap 2. The horizontal plate 32 is integrally bent in one direction at the bottom end of the vertical plate 31 which is formed to be curved in a streamlined outer surface, but the vertical plate is inclined such that the horizontal plate and the vertical plate have an acute or obtuse angle. At this time, the inner surface of the vertical plate 31 has a configuration in which the coupling protrusion piece 311 which can be fitted into the heat radiation fin insertion groove 11 of the cylindrical body (1) is formed extended.

The heat dissipation fins 3 having such a configuration may pass through the heat dissipation fins through the vertical plate 31 at the bottom of the disc-shaped cap 2 until the horizontal plate 32 is in close contact with the bottom of the disc-shaped cap 2. It is inserted through the coupling), the coupling protrusion 311 extending from the inner side of the vertical plate 31 is combined so as to be fitted into the heat radiation fin insertion grooves 11 formed in the vertical direction at the outer periphery of the cylindrical body (1), respectively. .

As described above, as a more preferred embodiment, the heat dissipation fins 3 may be configured to be attached to the upper surface of the disc 22 rather than to be fitted to the disc 22.

Or it may be configured in a form that is directly bonded to the upper surface of the LED substrate 4, in this case, the disc-shaped cap (2) may be removed.

In the present specification, an LED lamp having an inclined heat dissipation fin according to the present invention is described as having a disc-shaped cap 2 interposed therebetween. The understanding of the embodiment that does not include 2), the parts described in the configuration that includes the disc cap 2 in the description herein, the structure without the disc cap 2 in the technical common sense of those skilled in the art It is to be understood that it will be easily understood by those of ordinary skill in the field of LED lighting, so in order to avoid unnecessary duplication or repetitive description, it is described throughout the present specification based on having a disc-shaped cap (2) Although the detailed description of each component for the LED lamp applied with the inclined heat dissipation fin without the disc-shaped cap 2 is not described, the inclined dissipation fin according to the present invention. LED lamp is applied to a disk-shaped cap (2) it is clearly a necessary but not a must.

As described above, the heat dissipation fins 3 perform the cooling function of releasing the heat generated from the LED 43 that is transmitted through the LED substrate 4 into the air, as well as the disc-shaped cap 2 and the cylindrical body ( 1) also transmits to perform the function of heat dissipation through them.

Furthermore, the heat radiation fins of the LED lamps including the inclined heat radiation fins according to the present invention are bent to form an obtuse angle or an acute angle between the vertical plate and the horizontal plate, so that the vertical plate is inclined. Preferably, as shown in the accompanying drawings, it may be configured to form a spiral narrowing the tip, such as a peak screw. That is, the heat dissipation fins may be inclined in a spiral rotating shape along the central axis of the main body.

When the vertical plate is configured to be inclined, when there is an external wind or air flow, a spiral rotating wind is formed along the heat radiating fin in the upward direction around the central axis of the main body, and is vertically raised near the original plate or the LED substrate by the rotating wind. Airflow (C of FIG. 2) is formed.

The inclination of the vertical plate can be largely obtained by the following two methods.

First, as shown in FIG. 1, the connection between the cylinder and the heat sink fin is diagonally connected, which is a manner in which the vertical plate and the vertical plate of the heat sink fin form an obtuse angle or an acute angle as described above.

Alternatively, the heat sink fins are manufactured so that the vertical and horizontal plates are perpendicular to each other, and then the heat sink fins are vertically connected to the cylinder (not shown). It may take a manner to twist by adding, in this case, the heat radiation fins may be inclined in a spiral rotating shape along the central axis of the body.

The heat of the LED substrate can be obtained not only by the heat conduction to the heat dissipation fin but also by the convection cooling effect due to the vertical rising airflow and the spiral rotational wind.

Basically, in the structure that adopts heat radiating fins, the heat radiating fins should be discharged as much as possible to cool the radiating fins and there is a difference in thermal temperature between the LED substrate and the radiating fins.

Therefore, in order to further improve the heat dissipation effect to the external atmosphere, the LED lamp to which the inclined heat dissipation fin according to the present invention is shown, as shown in FIG. One or more circular ventilation holes 313 spaced apart from the lower end of the vertical plate 31 in a vertical direction and spaced apart from the outer peripheral surface of the cylindrical body 1 and the contact portion of the heat dissipation fins 3 may be formed.

This can reduce the heat island phenomenon in which heat remains between the heat dissipation fins 3. In addition, when the wind blows even a little, the air flows between the vertical plates 31 while the air passes through the ventilation holes 313 formed in the vertical plates 31, so that the heat dissipation effect due to convection (A) also occurs. As a result, the heat dissipation of the heat dissipation fin is effectively made, and the temperature of the heat dissipation fin is kept lower than the LED substrate at all times, so that the heat of the LED substrate is continuously dissipated to the outside, thereby further increasing the cooling efficiency.

The inventors of the present invention, through a number of experiments, the installation position of the ventilation hole 313 is based on the outer peripheral surface of the cylindrical body 1 and the contact portion of the heat dissipation fins 3 to the shortest end of the heat dissipation fins, as shown in FIG. 7A. It was concluded that it is desirable to be formed in the 1/5 to 3/5 region (the area between the dashed lines).

In particular, as shown, it is more preferable when the ventilation hole 313 is located in the 3/7 area from the contact portion of the outer circumferential surface and the heat dissipation fins 3 to the shortest end of the LED heat dissipation fins.

On the other hand, in order to exhibit sufficient convection effect, it is preferable that the total area ratio of the area of each of the heat radiation fins 3 to one or the plurality of ventilation holes 313 is 5: 1 to 3: 1.

Outside the above range, that is, if the area of the ventilation hole 313 is large enough to exceed the above range, the conduction effect of the heat radiation fin 4 is reduced, and if the area of the ventilation hole 313 is small enough to be less than the above range, sufficient convection effect is obtained. Hard to get

On the other hand, the shape of the ventilation hole 313 is basically circular, but of course includes a polygon such as a triangle.

Hereinafter, with reference to the accompanying drawings another embodiment of the vertical plate 31 of the LED lamp having the inclined radiating fin according to the present invention will be described in detail. The same reference numerals are used for the same components as those described in the above embodiments, and detailed description thereof will be omitted.

8 is a perspective view showing an LED lamp to which an inclined heat dissipation fin is applied according to another embodiment of the present invention.

In the above-described embodiment, a plurality of ventilation holes 313 are formed in each vertical plate 31 or spaced apart from each other by a predetermined distance. In another embodiment of the present invention, the ventilation holes 313 in each vertical plate 31 are formed. ') Is formed in a different position, preferably the ventilation hole 313' is formed in the height of the left or right sequentially on the vertical plate 31 of each of the heat radiation fin (3).

That is, for example, if the position of the vent hole 313 'is formed in any vertical plate 31 spaced apart from the bottom by a predetermined distance, the position of the vent hole 313' of the first vertical plate 313 on the right of the vertical plate is At a higher position, the position of the ventilation hole 313 'formed in the vertical plate 31 is then formed at a position higher than the ventilation hole 313' formed in the first vertical plate 31 on the right side. That is, as the position of the ventilation hole 313 'formed in each of the vertical plates 31 is gradually increased, the ventilation hole 313 is formed in the spiral direction as a whole.

In this structure, when the wind blows, the inclined heat dissipation fins 3 form an ascending air flow B that rotates helically with respect to the central axis of the LED lamp to which the inclined heat dissipation fins are applied. Together, the convection and heat dissipation effects can be further doubled to further increase the cooling efficiency.

Here, although not shown in the drawing, the longitudinal cross-section of the heat radiation fin may be formed vertically. The heat radiation efficiency may be lower than that of the heat radiation fins having an inclined vertical direction in which heat radiation fins are vertical, but there is an advantage in that the heat radiation fins are manufactured.

Referring again to FIG. 1, the LED substrate 4 is formed to have a shape of a disc having a diameter slightly smaller than the diameter of the disc 22 of the disc-shaped cap 2, respectively, around the center point and the center point. The wire through hole 221 and the plurality of fixture through holes 222 are punctured, and the bottom surface has a configuration in which a plurality of LEDs 43 are radially fixed at a predetermined interval and distance.

The LED substrate 4 having such a configuration is in close contact with the bottom surface of the horizontal plate 32 of the heat dissipation fins 3 while the LED substrate 4 is placed in the band-shaped guide plate 21 on the bottom surface of the disc shaped cap 2. Take form. And, through the fastener 8 is coupled to the fastener coupling protrusion 12 has a shape that is detachably fixed to the bottom surface of the cylindrical body 1 together with the heat dissipation fins 3 and the disc-shaped cap (2).

In other words, the assembly of the product is simple and the post-processing is not required at the time of manufacturing each component, thereby greatly reducing the manufacturing and production costs of the product, and the disc-shaped cap 2 and the heat dissipation fins 3 into the press mold. By making a thin steel plate that can be manufactured smoothly, as compared with the one-piece manufacturing using aluminum, the heat dissipation area can be significantly increased, and the weight thereof can be greatly reduced, thereby making it lighter.

The light diffusing shade 5 diffuses the light generated by the plurality of LEDs 43 evenly over the entire surface, and prevents circular flow from being caught inside the strip-shaped guide plate 21 of the disc-shaped cap 2 at the upper periphery. A protrusion 51 and a strip-shaped ridge projection 52 for pressing the bottom edge of the LED substrate 4 are formed to protrude at a predetermined distance, and are formed between the circular flow preventing protrusion 51 and the strip-shaped ridge projection 52. The space portion has a configuration in which a plurality of fastener fastening rods 53 are formed to protrude at a predetermined interval.

The light diffusing shade 5 having such a configuration is positioned at the bottom of the LED substrate 4 and inserted through the fixing hole through hole 224 drilled into the second flat plate portion 22b of the disc-shaped cap 2. Removably attached to the disc-shaped cap (2) by a fastener (8) coupled to the fastener fastening rod (53). At this time, the circular flow preventing protrusion 51 protruding from the upper periphery of the light diffusion shade 5 is caught inside the strip-shaped guide plate 21 of the disc-shaped cap 2. In addition, the band-shaped press protrusion 52 protruding from the inner side of the circular flow preventing protrusion 51 may have a shape that presses the bottom peripheral portion of the LED substrate 4.

The LED driving power supply unit 6 has a shape installed inside the cylindrical body 1 or the cover 7, and when the power switch (not shown) is "on" by the user and the AC voltage is supplied to the LED 43, It is converted into a DC voltage necessary for driving of and supplied to the LED substrate 4.

The cover 7 is formed by protruding the round-shaped socket coupler 72 in the center of the upper surface of the hemispherical cap 71 through the injection mold, the LED driving power supply on the outer periphery of the round-shaped socket coupler 72 A spiral power supply terminal 73 is embedded among two power supply terminals for supplying an AC voltage to the supply unit 6, and a hemispherical power supply terminal 74 is installed at an upper end thereof. In addition, a plurality of fastener through-holes 75 are formed in the periphery of the bottom periphery of the hemispherical cap 71.

The cover 7 injection-molded to have such a configuration is coupled through a fastener 8 coupled to the fastener coupling protrusion 12 of the cylindrical body 1 after being coupled in a form to block the upper opening of the cylindrical body 1. It is detachably attached to the upper surface of the cylindrical body 1. At this time, the socket coupling hole 72 and the spiral power supply terminal 73 and the hemispherical power supply terminal 74 of the cover 7 is the same as the shape of the socket coupling hole of the conventional incandescent light bulb, the LED lamp to which the present invention is applied is compared with the conventional incandescent light bulb. As described above, the socket (not shown) can be used simply by screwing.

On the other hand, although the main body 1 is formed in a cylindrical shape and has a sufficient space portion through which air can flow, the first of the disc-shaped cap 2 fixedly installed at the bottom of the cylindrical main body 1 is provided. When the flat plate portion 22a and the LED substrate 4 itself at a position corresponding thereto remain blocked, and the cover 7 coupled to the upper end of the cylindrical body 1 also remains blocked, Since the air flow into the main body 1 is not made, the heat generated by the LED 43 as well as the heat generated by the LED driving power supply 6 may not be cooled smoothly.

Therefore, in the present invention, a plurality of air distribution holes 225 and 44 are further drilled into the first flat plate portion 22a of the disc-shaped cap 2 and the LED substrate 4 corresponding thereto. Of course, by forming a plurality of air distribution holes 76 having a rectangular arc shape in the hemispherical cap 71 of the cover 7 at regular intervals, the hemispherical shape of the cover 7 having a rectangular arc shape After the outside air flows into the cylindrical body 1 through the plurality of air distribution holes 76 formed in the cap 71, the first flat portion 22a of the disc shaped cap 2 and the corresponding The LED substrate 4 in the position may be introduced into the space formed between the LED substrate 4 and the light diffusion shade 5 through a plurality of air flow holes 225 and 44 respectively drilled. Hot air present in the inner space can be discharged to the outside through the reverse direction so that the inside of the cylindrical body (1) or cover (7) Including the LED driving power supply 6 for the installed smoothly than the heat generated by a plurality of LED (43) that is installed on the LED substrate 4, and it is possible to efficiently heat a.

In addition, when the shape of the horizontal plate 32 of the heat dissipation fin (3) to have a substantially triangular shape throughout, a plurality of heat dissipation fins (3) coupled to the cylindrical body (1) through a disc-shaped cap (2) The horizontal plate 32 of the heat dissipation fin 3 of the plurality of blocks the plurality of fastener passage holes 224 perforated in the periphery of the second plate portion 22b of the disc-shaped cap 2, the light diffusion shade ( 5) the second flat plate of the disc-shaped cap 2 when it is intended to couple the fixture 8 to the fixture fastening rod 53 protruding from the light diffusing shade 5 to fix and install 5) to the disc-shaped cap 2. It is necessary to perform the operation of punching the fixture through-hole through post-processing on the horizontal plate 32 of the heat dissipation fin 3 blocking the fixture through-holes 224 perforated in the periphery of the part 22b.

Therefore, in the present invention, by forming a fastener passage groove 321 at the outer end of the horizontal plate 32 of the heat dissipation fin 3, the light diffusion shade 5 has a disc-shaped cap 2 without the need for post-processing. When it is to be fixed to the fixing plate, the fastener passage hole 224 perforated in the second flat plate portion 22b of the disc-shaped cap 2 and the horizontal plate 32 of the heat dissipation fin 3 immediately without the need for post processing. The fastener 8 is inserted into the fastener fastening rod 53 of the light diffusion shade 5 by inserting the fastener 8 through the fastener passing groove 321 formed in the c).

Although the configuration of the present invention has been described in detail above, this is merely an example, and the scope of the present invention is not limited thereto. Those skilled in the art to which the present invention pertains will be able to make various modifications and changes to the overall structure and each component of the LED lighting lamps to which the inclined radiating fins are applied through the description of the present specification. It would of course belong to the category of technical ideas.

The scope of the invention should be defined by the description of the claims below.

1: cylindrical body 11: heat radiation fin insertion groove
12: fastener coupling protrusion
2: disc cap 21: guide plate
22: disc 22a, 22b: 1st and 2nd flat plate part
221: wire through hole 222, 224: fixture through hole
223: heat radiation fin through hole 225: air distribution hole
3: heat sink fin 31: vertical plate
32: horizontal plate 311: binding stone piece
312: Air distribution home 313, 313 ': Ventilation
321: fixture through groove 4: LED substrate
41: wire through hole 42: fixture through hole
43: LED 44: air distributor
5: light diffusion shade 51: circular flow preventing projection
52: strip-shaped push projection 53: fastener fastening rod
6: LED driving power supply
7: cover 71: hemispherical cap
72: socket coupler 73: spiral power supply terminal
74: hemispherical power supply terminal 75: fastener through hole
76: air distributor
8: Fixture

Claims (10)

A cylindrical body having a plurality of heat dissipation fin insertion grooves formed at regular intervals in a vertical direction from an outer circumferential surface thereof;
A vertical plate and a lower end of the vertical plate are bent to form a horizontal plate. An inner side of the vertical plate extends a coupling protrusion that is fitted into the heat dissipation fin insertion groove of the cylindrical body, and the coupling protrusion is inserted into the heat dissipation fin of the cylindrical body. A plurality of heat dissipation fins coupled to the grooves;
A bottom surface of the LED substrate having a plurality of LEDs fixed radially at a distance and a predetermined distance, and directly or indirectly in thermal contact with the plurality of heat dissipation fins, the LED substrate being detachably fixed to the bottom of the cylindrical body;
An LED driving power supply unit for converting an AC voltage into a DC voltage to drive an LED when the power switch is turned “on” in a state of being placed in a cylindrical body or a cover detachably installed on an upper surface of the cylindrical body; Including,
The heat dissipation fin is configured to be inclined with respect to the central axis of the cylindrical body,
One or more ventilation holes are formed in the vertical plate of the heat dissipation fin,
The vent hole,
It is formed in the area 1/5 to 3/5 to the shortest curved end of the heat radiation fins on the basis of the contact portion of the heat radiation fins in contact with the outer peripheral surface of the cylindrical body,
If the position of the vent hole in any vertical plate is formed a predetermined distance away from the bottom, the position of the vent hole of the first vertical plate adjacent to the arbitrary vertical plate is at a higher position, the next second adjacent to the first vertical plate The position of the ventilation hole formed in the vertical plate is formed at a position higher than the position of the ventilation hole formed in the first vertical plate, so that the overall arrangement shape of the ventilation hole formed in each vertical plate is arranged in a spiral direction with respect to the central axis of the cylindrical body. LED lighting lamps characterized in that the inclined heat dissipation fins are applied.
The method according to claim 1,
The heat dissipation fin is an LED lamp applied to the inclined heat dissipation fin, characterized in that inclined in a spiral shape rotating along the central axis of the main body.
The method according to claim 1,
Attached to the bottom of the body, a plurality of heat dissipation fin coupling holes and coupling projections LED lamp, characterized in that it further comprises a disk cap radially punctured.
The method according to claim 3,
The heat dissipation fins, LED lamps to which the inclined heat dissipation fins are applied, characterized in that the coupling with the disk-shaped cap or welded.
delete The method according to claim 1,
The ventilation hole is formed in the vertical plate of the heat dissipation fin, the inclined heat dissipation fin is formed in the 3/7 area to the streamlined curved end of the heat dissipation fins based on the contact portion of the heat dissipation fins in contact with the outer peripheral surface of the cylindrical body LED lights applied.
The method according to claim 1,
The ratio of the area of each heat sink fin to the area of one or more ventilation holes is 5: 1 to 3: 1 LED lamp with a sloped heat sink is applied.
delete delete A cylindrical body having a plurality of heat dissipation fin insertion grooves formed at regular intervals in a vertical direction from an outer circumferential surface thereof;
A vertical plate and a lower end of the vertical plate are bent to form a horizontal plate. An inner side of the vertical plate extends a coupling protrusion that is fitted into the heat dissipation fin insertion groove of the cylindrical body, and the coupling protrusion is inserted into the heat dissipation fin of the cylindrical body. A plurality of heat dissipation fins coupled to the grooves, the vertical plates being inclined with respect to the central axis of the cylindrical body;
A bottom surface of the LED substrate having a plurality of LEDs fixed radially at a distance and a predetermined distance, and directly or indirectly in thermal contact with the plurality of heat dissipation fins, the LED substrate being detachably fixed to the bottom of the cylindrical body;
An LED driving power supply for driving an LED by converting an AC voltage into a DC voltage when the power switch is turned “on” while being placed inside the cylindrical body or a cover detachably installed on an upper surface of the cylindrical body; Including,
The heat dissipation fins are directly attached to the upper side of the LED substrate or through a heat conducting member. Vent holes are formed in each of the vertical plates of the plurality of heat dissipation fins, and the entire array shape of the vent holes is spiral based on the central axis of the cylindrical body. LED lamp applied to the inclined radiating fins, characterized in that formed by.

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