KR101005324B1 - LED lighting lamp - Google Patents

Abstract

The present invention relates to an LED lighting lamp, the main configuration of the base housing is electrically and mechanically connected to the power supply; A main PCB electrically connected to the power supply unit through the base; A cylindrical heat dissipation frame forming a reflection surface on an outer circumferential surface of the body extending downward; A plurality of side LEDs attached to the outer circumferential surface of the heat dissipation frame by forming a plurality of rows in an axial direction and spaced apart from each other in a circumferential direction so that the reflective surface is exposed in the axial direction; A plurality of downward LEDs attached to a lower end of the body of the heat dissipation frame; And an optical casing made of a translucent material coupled to a lower end of the base housing and extending downward to surround the heat dissipation frame, wherein the bottom surface of the flange has a reflective LED at the same angle in the circumferential direction with the reflective surface. According to the above configuration, it is possible to obtain proper light emitting performance while using the smallest number of LEDs, and to reduce the unit cost compared to the performance of the lighting lamps. By reflecting the reflecting surface by the reflecting LED, it is possible to solve the aesthetic problem in which a mottled pattern is generated in the light casing due to the light emission deviation according to the LED arrangement.

Lighting Lamps, LEDs, Reflectors, Reflective LEDs, Ventilators

Description

LED lighting lamp {LED lighting lamp}

The present invention relates to an LED lighting lamp, and more particularly, to a plurality of LEDs mounted inside the optical casing, which is a translucent body, through a cylindrical heat dissipation frame, to provide a soft and bright light having a feeling like a three-wavelength lamp. will be.

In general, lighting lamps are aimed at indoor lighting, but in recent years, a lot of decorative aspects are emphasized. Therefore, the brightness for illumination is important, but the appearance as interior decoration is also more important.

As an example, an indoor light 110 using a three-wavelength lamp 101 as shown by reference numeral 101 in FIG. 1 may be a case in which the indoor light 101 is installed inside the ceiling 120 as shown. And a three-wavelength lamp 101 detachably coupled to the bulb socket 105 and the bulb socket 105 formed at the top center of the case 103.

Here, the three-wavelength lamp 101 used as the light source is a base 113 is made of a screw type is detachably mounted to the bulb socket 105 by screwing, bar in a narrow place having the same color as the fluorescent lamp It can be installed, allowing for improved functionality and decorativeness than previously used incandescent bulbs.

However, since the three-wavelength lamp 101 is relatively more expensive than the incandescent lamp due to its manufacturing characteristics, and its size is proportional to the brightness, more than a certain size should be used to secure and maintain a predetermined brightness, so that the price increases again. There was a problem that the economic burden is increased.

In order to solve this problem, "LED lighting lamp" as shown in Figure 2 has been disclosed in the domestic patent application No. 10-2007-7025517. This LED lighting lamp attaches a plurality of LED units 205 over the support member 203, as shown by reference numeral 201 in FIG. 2, and in each LED unit 205 a plurality of LED units as shown in FIG. The LED element 207 is mounted.

Therefore, according to the LED lighting lamp 201, not only the relatively inexpensive LED element 207 can be used as a light source, but also easy to attach and detach like a general incandescent lamp or a three-wavelength lamp, and implement a lamp having a similar light emission pattern.

However, the LED lighting lamp 201 above, as shown in Figure 3, the LED element 207 is provided in six rows of nine to one line to cover the entire light emitting surface consisting of a hexagonal bar, maintaining an appropriate illumination Too many LED elements 207 are used to achieve this, so it is difficult to expect a comparative advantage over ordinary incandescent lamps or three-wavelength lamps in terms of price, and in view of these price aspects, the number of LED elements 207 is reduced or reduced. Since the distance between the LED element 207 and the element 207 is too far apart in the vertical and horizontal direction even if not reduced, the variation in the longitudinal direction occurs in the light emitted through the light-transmissive resin body 209, the mottled pattern is the lamp 201 As shown on the surface, such as incandescent lamps and three-wavelength lamps do not emit light uniformly throughout the light emitting surface, and thus the overall aesthetics of the lamp 201 is deteriorated .

The present invention has been proposed in order to solve the problems of the conventional LED lighting lamp as described above, while increasing the price competitiveness compared to the luminous performance for the conventional incandescent lamp or three-wavelength lamp, and so that the luminous deviation does not occur on the light emitting surface of the lamp Therefore, the object of the present invention is to realize the same light emission pattern as an incandescent lamp or a three-wavelength lamp.

In addition, the LED lighting lamp of the present invention has another object to improve the luminous performance by effectively dissipating heat generated from the LED by manufacturing the material and structure of the heat radiation frame to which the LED is attached to improve the thermal conductivity.

Accordingly, the present invention to achieve the above object, the base housing which forms a body to be electrically and mechanically connected to the power supply by the base formed on the top; A main PCB mounted inside the base housing and electrically connected to the power supply unit through the base; A cylindrical heat dissipation frame coupled to a bottom surface of the main PCB, extending downward along an axis, and forming a reflective surface on an outer circumferential surface of the body extending downward; A plurality of side LEDs attached to the outer circumferential surface of the heat dissipation frame in a axial direction with a plurality of rows spaced apart from each other in a circumferential direction such that the reflective surface is elongated in the axial direction; A plurality of downward LEDs attached to a lower end of the body of the heat dissipation frame; And an optical casing made of a translucent material, which is coupled to a lower end of the base housing and extends downwardly to surround the heat dissipation frame, wherein the heat dissipation frame has a bottom surface of the flange coupled to the main PCB toward the body. It is inclined to collect inward, and the bottom edge portion of the flange is provided with an LED lighting lamp is attached to the reflective LED at the same angle in the circumferential direction with the reflective surface.

In addition, the heat dissipation frame has a hollow cylindrical shape which is opened downward, and a plurality of vent holes penetrate the flange and the body.

In addition, the side, downward, and reflecting LED is preferably a top-view surface-mounting device.

In addition, the vertical and horizontal PCB on which the side and the bottom LED is mounted is preferably a metal PCB.

In addition, the heat dissipation frame is preferably a plurality of heat dissipation fins spaced in the circumferential direction on the inner circumferential surface of the body protruding in the longitudinal direction.

Therefore, according to the LED lighting lamp of the present invention, while employing a relatively inexpensive LED as a light source compared to the conventional incandescent lamp or three-wavelength lamp as the light source, the number is employed by densely arranged in the longitudinal direction and coarse in the transverse direction By minimizing, it is possible to further improve the price competitiveness compared to the light emitting performance of the lighting lamp.

That is, in attaching the LED on the heat dissipation frame, the LED columns arranged vertically and vertically are spaced apart in the horizontal direction, and the reflective surfaces are formed at the same time, and the reflective LEDs are attached to the bottom of the flange at the top of the heat dissipation frame. Since the reflecting surface is irradiated, the light is emitted only by the reflected light even in the part where the LED is not attached like the reflecting surface so that the required number of LEDs can be minimized and the light emission performance of the entire lamp can be further improved. do.

Moreover, there is no gap between the rows and columns of LEDs, and the light emission deviation that can occur between the columns and columns of LEDs eliminates the reflected light from the reflecting surface, without compromising the aesthetics of the photocasing. It is possible to implement the emission pattern of the same feeling as the conventional three-wavelength lamp.

In addition, since the heat-dissipating frame to which the LED is attached is manufactured in a structure having excellent air permeability having a plurality of openings and ventilation holes by a metal material such as aluminum having high thermal conductivity, it is possible to prevent the degradation of light emission performance due to overheating of the LED. Will be.

Hereinafter, the LED lighting lamp according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The LED lighting lamp of the present invention is a luminaire having a shape and size similar to a conventional three-wavelength lamp using the LED, as shown by the reference numeral 1 in Figs. 4 and 5, the base housing 3, the main PCB ( 5), the heat dissipation frame 7, the side LED 8, the bottom LED 9, and the optical casing 11.

Here, the base housing (3) is the base of the LED lighting lamp (1), as in incandescent lamps or three-wavelength lamps, so that the LED lighting lamp (1) is electrically and mechanically connected to a power source such as a light bulb socket. A base 13 is formed at the upper side, and a plurality of vent holes 14 for venting are circumferentially penetrated at the upper end of the peripheral surface adjacent to the base 13, and below it, by conduction from the heat radiating frame 7. A plurality of heat dissipation fins 16 for releasing the heat transferred to the base housing 3 to the outside more smoothly protrude at regular intervals in the circumferential direction along the outer circumferential surface, in particular, the heat dissipation fins 16 are directly vertical PCB 33 It is preferable to be located behind.

In addition, the main PCB (5) is a conventional PCB, as shown in Figures 4 and 5, mounted on the lower end of the inner peripheral surface of the base housing 3 is electrically connected to the base 13 by the light bulb socket or the like Power is supplied and supplies the power to the side and bottom LEDs (8, 9) through the body (15) coupled to the bottom, as well as the various circuits or terminals necessary for the control circuit or amplification circuit on the opposite side As shown in FIG. 7, the inner space of the base housing 3 and the inner space of the body 15 connected to the outside through the ventilation hole 14 are connected to the center and various terminals or components. A plurality of vent holes 24, 26, 31 are penetrated between them.

In addition, the heat dissipation frame 7 is coupled to the bottom of the main PCB (5), as shown in Figures 4 and 5 so that a plurality of side and lower LEDs (8, 9) together with the main PCB (5) This part is to be mounted under the housing (3), the flange 19 and the flange (19) made of a metal material, such as aluminum with high thermal conductivity, in close contact with the bottom surface of the main PCB (5) to increase the heat dissipation performance. It consists of a solid or hollow cylindrical body 15 which extends downwardly along the axis of the LED lighting lamp 1 at the bottom, which body 15 is in the form of a hollow cylinder which is open downward, in particular as shown. Preferably, the flange 19 and the body 15 may be provided with a plurality of vent holes 25, 27, 29, respectively, through the vent holes 25, 27 through the heat radiation frame (7) Air introduced between the light casing and the light casing 11 flows into the base housing 3, in particular aeration The ball 25 also serves as a passage through which the power lines of the vertical PCB 33 and the horizontal PCB 37 pass, and are provided between the heat dissipation frame 7 and the optical casing 11 through the air vent 29. A portion of the introduced air flows into the heat dissipation frame 7 and flows out into the base housing 3 through the upper opening 39 and the vent hole 31 of the main PCB 5. In addition, the vertical and horizontal PCBs 33 and 37 are made of metal PCBs so that heat generated from the side and lower LEDs 8 and 9 can be more smoothly transferred to the heat dissipation frame 7.

In this way, the sheet portion 18 for mounting the vertical PCB 33 on which the plurality of side LEDs 8 are mounted is processed on the outer circumferential surface of the body 15 extending downward, and the sheet portion 18 and the sheet are processed. The outer circumferential surface of the body 15 exposed between the portions 18 is processed into a reflective surface 17 with a smooth surface roughness. In addition, on the inner circumferential surface of the body 15, a plurality of heat dissipation fins 22 circumferentially spaced in the longitudinal direction so as to smoothly extract the heat generated from the vertical PCB 33 is protruded in the longitudinal direction long have.

On the other hand, the flange 19 of the heat dissipation frame 7 has an opening 39 extending into the inside of the body 15 at the center as shown in FIG. 6, and protrudes radially from the top of the body 15. 4 and 5, the bottom surface 21 is inclined to be collected inward toward the body 15, coupled to the main PCB (5). In addition, the reflective LED 23 is attached to the edge of the inclined bottom surface 21 at the same angle in the circumferential direction with the reflective surface 17. For this purpose, the reflective LED 23 is, for example, FIG. As shown in Fig. 6, it is attached to the flange 19 through PCBs of various shapes and arrangements, such as a pair of two at 90 ° intervals on the auxiliary PCB 35 curved in the form of a quarter arc. In addition, it is preferable to use a top-view surface mount device (SMD) like the side and bottom LEDs (8, 9).

In addition, the plurality of side LEDs 8 and the lower LEDs 9 are attached to the outer surface of the heat dissipation frame 7 to emit light, and are particularly used by a top-view surface mount device (SMD). It is preferable to be. Among them, the lateral LEDs 8 are mounted in a row on the vertical PCB 33 and are axially attached to the body 15 of the heat dissipation frame 7, as shown in FIGS. 4 and 5. (15) The rows and columns of the side LEDs 8 are spaced at 90 ° intervals in the circumferential direction, for example, as shown, by being fitted to the sheet portion 18 formed on the outer circumferential surface, and thus the rows and rows of the side LEDs 8. The reflective surface 17 is exposed long in the axial direction at intervals of 90 degrees. Meanwhile, the plurality of lower LEDs 9 are attached to the bottom of the body 15 of the heat dissipation frame 7 as shown in FIGS. 4 and 5, and the outer circumferential surface shape of the body 15 is illustrated in FIG. 8. According to, for example, mounted on a PCB 37 made in a circular shape, when the body 15 is a hollow park barrel, the vent hole 41 may be penetrated through the center to communicate with the interior of the trunk 15.

Finally, the optical casing 11 is a cylindrical case surrounding the heat dissipation frame 7 and the plurality of lateral and downward LEDs 8, 9, as shown in FIGS. 4 and 5. , 9) is made of a translucent material such as synthetic resin to diffuse the light from, and is coupled to the bottom of the base housing (3) and extends down long, the lower part surrounding the lower LED (9) is made in the form of a dome, three-wavelength overall It is desirable to have a shape like a lamp. In addition, the optical casing 11 has a heat dissipation performance of the heat dissipation frame 7 by forming a plurality of through-holes 43 through the circumferential direction at a circumferential direction at the boundary portion of the cylindrical body and the lower dome form as shown. You can also increase it.

Now, the operation of the LED lighting lamp 1 according to the preferred embodiment of the present invention configured as described above will be described.

The LED lighting lamp 1 of the present invention is surrounded by a plurality of side and lower LEDs (8, 9) by the optical casing 11 so that the external appearance as a three-wavelength lamp as a whole, as shown in Figures 4 and 5 As described above, the base 13 of the base housing 3 is fitted to a light bulb socket of a luminaire such as a ceiling, a wall, or a stand such as a general incandescent lamp or a three-wavelength lamp.

When the LED lighting lamp 1 is inserted into the bulb socket as described above, external power is supplied through the base 13, and the supplied power is applied to the vertical PCB 33 and the horizontal PCB 37 through the main PCB 5. To emit light of the lateral and downward LEDs 8 and 9, respectively. At this time, the amount of light emitted from the LED 8.9 can be increased or decreased through an amplification circuit or a resistor of the main PCB 5, and the light emitted from the side and bottom LEDs 8 and 9 diffuses widely while passing through the optical casing 11. The light spreads evenly, as in a three-wavelength lamp, for a subtle visual effect. At this time, the color of the light generated from the light casing 11 can be changed to red, green, and blue depending on the type of the side and bottom LEDs 8 and 9 as well as the reflective LED 23. By using different LEDs in combination above, it is possible to generate various colors of light.

In particular, the LED lighting lamp 1 of the present invention, the side LED (8) is mounted in a row up and down on the outer peripheral surface of the body (15) of the heat dissipation frame (7), in order to increase the overall light emission, the entire outer peripheral surface of the body (15) Although it is preferable to attach the LED to all parts, this is only considering the amount of emitted light, and considering the unit cost of the LED lighting lamp 1 or the internal heat generation problem, it is hardly applicable.

Therefore, the LED lighting lamp 1 of the present invention forms a reflecting surface 17 at a predetermined interval between the rows and rows where the side LEDs 8 are arranged, and toward the reflecting surface 17. Since the reflective LED 23 emits light and applies light to the reflecting surface 17, the light emitting effect is exhibited to some extent by the reflecting surface 17, so that another LED is attached to the reflecting surface 17. As can be seen, light can be emitted evenly without deviation in the entire optical casing 11, and ultimately, a visual effect such as a three-wavelength lamp can be obtained.

In addition, the LED lighting lamp 1 of the present invention, since the heat dissipation frame 7 is a solid or hollow cylindrical body, the side and bottom LEDs 8 and 9 are basically mounted, as well as the reflective LEDs 23. Not only does it serve as a structure, but also serves to absorb heat generated from these LEDs (8, 9, 23) and release it to the outside through the base housing (3).

That is, heat generated from the side and bottom LEDs 8 and 9 is transferred to the flange 19 via the body 15 of the heat dissipation frame 7, as shown by arrow A in FIG. 9, and the flange ( 19) A plurality of vents may be transferred to the inside of the base housing 3 to which the heat dissipation frame 7 is coupled by convection from the upper surface or to the base housing 3 itself by conduction at the circumferential surface of the flange 19. It is discharged directly to the outside through the 14 or through the heat radiation fins 16, etc. protruding from the outer surface of the base housing (3). At this time, when the vent hole 43 is penetrated through the lower end of the optical casing 11, as shown by the arrow B in FIG. 9, outside air flows into the optical casing 11 through the vent hole 43. Heat can be directly released by convection on the heat dissipation frame 7 and the surfaces of the side and bottom LEDs 8 and 9, and the heat released from the inner circumferential surface of the heat dissipation frame 7 or the heat dissipation fins 22 may be vented. 29, 41, and the heat emitted from the outside of the heat dissipation frame 7 through the opening 39 of the flange 19 and the vent hole 31 of the main PCB 5 are transferred to the vent hole of the flange 19. After being discharged to the base housing 3 through the vent holes 24 and 26 of the main PCB 5 and 25 and 27, respectively, and then to the outside through the vent hole 14.

1 is a longitudinal sectional front view showing a conventional three-wavelength lamp in use.

Figure 2 is a front view showing a conventional LED lighting lamp.

3 is a partially cutaway front view of the LED unit shown in FIG. 2;

Figure 4 is a longitudinal sectional front view of the LED lighting lamp according to the present invention.

5 is an exploded view of FIG. 4;

6 is a bottom view of the heat dissipation frame shown in FIG. 5.

7 is a plan view of the main PCB shown in FIG.

FIG. 8 is a bottom view of the lower LED shown in FIG. 5. FIG.

9 is a view showing the ventilation and heat transfer direction in and out of the heat radiation frame shown in FIG.

Description of the Related Art

1: LED lighting lamp 3: Base housing

5: main PCB 7: heat dissipation frame

8: Side LED 9: Down LED

11: optical casing 13: base

15: torso 17: reflective surface

19: flange 23: reflecting LED

31,41,43: Aerator 33: Vertical PCB

35: auxiliary PCB 37: horizontal PCB

Claims (5)

A base housing 3 which forms a body so as to be electrically and mechanically connected to the power supply unit by a base 13 formed at an upper end thereof; A main PCB (5) mounted inside the base housing (3) and electrically connected to the power supply unit through the base (13); A cylindrical heat dissipation frame 7 coupled to a bottom surface of the main PCB 5 and extending downward along an axis, and forming a reflective surface 17 on an outer circumferential surface of the body 15 extending downward; A plurality of sides are attached to the outer circumferential surface of the body 15 of the heat dissipation frame 7 to form a plurality of rows axially spaced apart from each other in the circumferential direction so that the reflective surface 17 is exposed in the axial direction elongated LED 8; A plurality of downward LEDs (9) attached to a lower end of the body (15) of the heat dissipation frame (7); And It is coupled to the bottom of the base housing 3, the optical casing 11 of a translucent material extending long to surround the heat dissipation frame (7); The heat dissipation frame 7 is inclined so that the bottom surface 21 of the flange 19 coupled to the main PCB 5 is collected inward toward the body 15, and the flange 19 LED lighting lamp, characterized in that the reflecting LED (23) is attached to the edge portion of the bottom surface (21) on the same angle in the circumferential direction with the reflecting surface (17). According to claim 1, The heat dissipation frame 7 has a hollow cylindrical shape which is opened downward, and a plurality of vent holes 25, 27, 29 are penetrated through the flange 19 and the body 15. Lighting lamp. The method according to claim 1 or 2, LED lighting lamp, characterized in that the side, down, and reflecting LED (8, 9, 23) is a top-view surface-mounting device (SMD). The method of claim 3, LED lighting lamp, characterized in that the vertical and horizontal PCB (33,37) on which the side and the bottom LED (8,9) is mounted. 5. The method of claim 4, The heat dissipation frame (7) is LED lighting lamp, characterized in that the plurality of heat dissipation fins (22) spaced in the circumferential direction on the inner circumferential surface of the body (15) protruding in the longitudinal direction.

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