KR20100006046A - Lighting device using led superseding fluorescent lamp - Google Patents

Abstract

PURPOSE: A lighting device using an LED superseding fluorescent lamp is provided to secure durability by preventing residual heat inside the light device. CONSTITUTION: A base housing(100) is comprised of a connection part connected to a socket of a fluorescent lamp, a PCB(132) controlling an LED module, and an LED module(120). At least a part connected from the bond part of the PCB to an external surface is formed with a thermal conductive material. A plurality of protrusions are formed on the external side of a part which is formed with the thermal conductive material in order to increase the surface area of the part. A cover housing(200) is formed with a material having a constant elasticity. The cover housing is attached to the base housing. The cover housing comprises an illumination surface emitting the light of the LED module to the outside.

Description

LED lighting device for fluorescent lamp replacement {LIGHTING DEVICE USING LED SUPERSEDING FLUORESCENT LAMP}

The present invention relates to an LED lighting device for replacing a fluorescent lamp, the LED lighting device for replacing a fluorescent lamp having a more durable and energy-saving effect by dimming by LED in a state that is coupled to the existing fluorescent lamp socket compatible. It is about.

 Fluorescent lamps currently widely used as lighting functions in buildings, other places, and devices, including homes and public places, have a power output of 10 to 60 W depending on their use and amount of power, and are applied to fluorescent materials coated on fluorescent lamps. The infrared rays generated by the discharge of the light is generated by the function of generating visible light by contact.

However, these fluorescent lamps have been measured to have a lifespan of 3000 to 5000 hours due to the development of technology, but due to frequent on / off switching of filament aging, that is, frequent filament heating is triggered, actual use time is less than 3000 hours. In fact, it has been pointed out that environmental problems are caused by mercury flowing out of the discarded fluorescent lamp.

On the other hand, LED (Light Emitting Diode), which is made of the principle of using the change of current as the intensity change of light, has the advantage that it can be used for a long time with the stable lighting effect and the life of about 6000 hours compared to the fluorescent lamp.

However, these LED lights are widely used for advertisements and stages, but are not properly used in homes or general buildings. One of the reasons is that it is difficult to handle heat generated by LED lights. In addition, it is difficult to use as an indoor lighting fixture due to its unique optical straightness.

Looking at domestic and foreign patent publications, a large number of lighting fixtures for replacing fluorescent lamps using LED lights have been posted. For example, in the case of Korean Patent Application No. 10-2007-0016980, a vent or blower is provided on one side of an LED lighting fixture. LED residual heat is processed by dissipating heat to the outside by installing it, but in the case of through-holes, residual heat on LED lighting fixtures or PCBs installed for controlling them is used since the air conduction uses relatively weak air as a conductor. There is a concern that this may result in overloading, and in the case of Solaunggi, there is a separate power loss, which is pointed out as a disadvantage in terms of energy conservation.

In addition, domestic patent registration No. 784886 'LED fluorescent lamp' overcomes the straightness of the LED light to some extent, but does not have a means to properly handle the heat problem, domestic patent No. 826955 'fluorescent lamp module The technology such as the LED lighting device attached to the Korean Utility Model Application No. 20-2006-0029443 'LED linked train fluorescent lamp device' does not replace the fluorescent light with the LED light, but the LED light and the fluorescent light are used in parallel. The disadvantages are pointed out.

Accordingly, there is a need for a new and advanced fluorescent lamp replacement LED lighting device that can replace the fluorescent lamp while adequately overcoming the heat generation problem and the problem of diffusion falling due to the straightness of the LED light.

The present invention has been made to overcome the problems of the above technology, in the state having a shape similar to the existing fluorescent lamp, in order to prevent the overload by the heat in the LED module and the PCB for this control, the heat easily to the outside along the PCB formation site In addition to providing these conducting conductors, LEDs can more effectively block the heat problem pointed out by the shortcomings of LED lighting by increasing the surface area on the outer surface of the conductor and forming projections that can be easily cooled by contact with air. The main purpose is to provide a lighting device.

Another object of the present invention is to provide a plurality of reflecting plates in the appropriate portion to correct the straight propensity of the LED light to have more faithful diffuse reflection and light diffusion effect.

Still another object of the present invention is to detach the housing formed in the shape of a fluorescent lamp as two parts in order to provide the convenience of replacement of the LED light, to facilitate the ease of detachment and robustness of assembly.

It is a further object of the present invention to project a predetermined portion of the housing to which the LED module is detached from the detachable housing in a raised shape so as to properly prevent the LED lighting from being distributed to the side and the rear of the protruding portion.

In order to achieve the above object, the LED lighting apparatus for replacing a fluorescent lamp according to the present invention, the connection portion is connected to a known fluorescent lamp socket, a PCB for controlling the LED module, and protruding a predetermined length along the dimming direction on the PCB. A base housing comprising a LED module, the base housing having a plurality of protrusions on the outer side to increase the surface area in a state where at least the portion from the PCB attachment portion to the outer side is made of a thermally conductive material; Made of a material having a certain elasticity is detachably coupled to the base housing, the cover housing having a dimming surface for radiating the light of the LED module to the outside; including, coupled to the fluorescent lamp socket can be used as a fluorescent lamp substitute It is characterized by.

The base housing further includes a ridge extending protruding at right angles in the direction of the dimming surface of the cover housing from the support tuck formed horizontally symmetrically from the outer surface thereof, wherein the PCB is formed on the surface of the ridge. It is characterized by that.

In addition, the side portion of the ridge, the first projection extending in the transverse direction from the surface of the ridge; A second projection protruding in parallel with the first projection from an upper end of the support jaw below the first projection; A first recess provided between the first and second protrusions; And a second recess provided between the second protrusion and the support jaw, and recessed deeper inward than the first recess.

In addition, the PCB surface, characterized in that the reflection plate for reflecting the light beam of the LED module to the illumination surface of the cover housing.

According to the LED lighting device for replacing a fluorescent lamp according to the present invention,

1) By using the LED lighting as it has or upgrades the optical characteristics of the existing fluorescent lamp, it can be used longer than the existing fluorescent lamp (about 6000 hours) and at the same time saves energy,

2) It can be used interchangeably without replacing the existing fluorescent lamp device, which can reduce the cost and bring convenience of assembly and disassembly.

3) In the assembled state, while providing a more solid assembly state and durable use state,

3) It ensures durability more safely by blocking internal residual heat generation phenomenon, which is a problem of existing LED lighting,

4) It has the effect of achieving more concentrated light divergence by dual light reflection / diffusion enhancement functions.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. The accompanying drawings are not drawn to scale, and like reference numerals in each of the drawings refer to like elements.

1 is a perspective view showing a schematic appearance of the LED lighting device for replacing a fluorescent lamp according to the present invention.

The device according to the present invention is made of a cylindrical housing having a certain length (the same length as a fluorescent lamp currently used) like a general conventional fluorescent lamp and has a connecting portion 110 for connecting to a socket at both ends of the cylindrical housing. It has an external standard and a power standard (for example, 20 to 100 W) that can replace a conventional fluorescent lamp, and the LED module 120 is mounted in this cylindrical housing.

The cylindrical housing is composed of two parts, which can be disassembled and assembled. As can be seen from FIG. 1, a cover housing 200 which is a portion having an illuminating surface through which light rays of the LED module 120 are diffused to the outside is provided. And a base housing 100 which is detachably coupled to the cover housing 200 in a state in which the connection part 110 is provided at both ends and the LED module 120 and the other predetermined configuration therein. It consists of.

The cover housing 200 and the base housing 100 have a semi-cylindrical shape, such as a cross-section of the cylindrical pipe in the approximately transverse direction, such that the shape is the same as or similar to that of a cylindrical housing, that is, a known fluorescent lamp. Will have

 Figure 2 is a longitudinal sectional view specifically showing the internal configuration of the device according to the invention.

As can be seen from Figure 2, the base housing 100 has a specific structure in the state in which the LED module 120 and other components are mounted, and easy to assemble / disassemble with the cover housing 200 while being robust at the time of assembly. It is designed to ensure a bonding relationship.

First, the base housing 100 is provided under the LED module 120, the PCB 132 for controlling the lighting state of the LED module 120, the LED module 120 to play a pivotal role in the lighting function. The first to second recesses 135 and 136 and the first to second recesses 150 and 136 provided to ensure an excellent coupling relationship with the reflector plate 150 and the cover housing 200 to maximize the reflection effect on the LED light. The projections 133 and 134 and the support jaw 137, the protrusions 140 formed on the outer circumferential surface to achieve proper heat dissipation, and are provided to ensure the concentration of the LED light at right angles at the inner end of the support jaw 137. A ridge 130 that is upright and raised but includes the LED module 120 to the PCB 132 on the surface 131, and is formed at both ends to be connected to a known fluorescent lamp socket as shown in FIG. It includes a connector 110.

The base housing 100 has a shape such as a semi-cylindrical pipe having a substantially inner circumferential space as mentioned above, but is suitably covered through the space provided by the second recess 136. Insert one end of).

Specifically, it is formed to extend horizontally inward from the outer peripheral surface (outer surface) of the base housing 100 to form a support jaw 137 having a symmetrical shape as a whole. In addition, the base housing 100 includes a raised portion 130 that is bent (preferably at right angles) and extended toward the dimming surface of the cover housing 200 at the inner end of the supporting jaw 137.

The ridge 130 is ultimately closer to the inner space of the cover housing 200 by the length of the ridge to reduce the inner space of the cover housing 200 so that the light rays generated from the LED module 120 are reflected on the inner wall of the cover housing 200. In order to have a constant direction toward the dimming surface of the cover housing 200 without unnecessary dispersal, and to ensure a more tight coupling relationship with the cover housing 200 (that is, between the uneven portion of the cover housing and the first protrusion) In addition to providing the possibility of coupling, it performs an important function for properly blocking the probability that LED light will be unnecessarily distributed in the lateral direction to the rear direction of the LED module 120.

In addition, the first protrusion 133 extends in the horizontal direction from the surface of the ridge 130 toward the outer side (the direction toward the uneven portion of the cover housing), and the ridge portion that is the lower portion of the first protrusion 133 ( A second protrusion 134 is also formed extending from the upper side of the support tuck 137 of the one side wall of the support 137 also in the horizontal direction.

Due to the structure of the first protrusion 133 and the second protrusion 134, the first recess 135 is naturally formed between the first and second protrusions 133 and 134, and the second protrusion 134 is supported. A second recess 136 is also naturally formed between the surface portions of the jaw 137.

In addition, one side (upper surface in FIG. 2) edge portions of the first and second protrusions 133 and 134 are formed with a chamfer treatment portion C subjected to a chamfer treatment.

The LED module 120 is preferably formed to protrude from the surface of the ridge 130, and has a main function of emitting light peculiar to the LED by receiving power or a signal supplied from the PCB 132.

As can be seen in FIG. 2, the LED module 120 protrudes to a predetermined height toward a dimming surface (surface portion in which the uneven portion is formed in FIG. 2) of the cover housing 200. ) Is controlled by the PCB 132, for example, on / off to brightness adjustment, control of only the selective LED module 120 among the plurality of LED modules 120, and the like.

Conventional LED lighting devices often use a method of connecting the LED module 120 by bolts on the PCB 132 substrate, so that the heat generated by the LED lighting is concentrated on the bolt area and does not properly disperse heat to the surroundings. Otherwise, there is a problem that the residual heat concentrates on the PCB 132 and increases the ambient temperature or increases the fatigue of the PCB 132 when used for a long time, so that the PCB 132 itself is used as a sufficient heat dissipation agent to prevent this. The inventors have sought to improve the PCB 132 including the surface of the ridge 130.

Specifically, the side of the ridge 130, including the surface 131 of the ridge, is preferably made of a thermal conductor (a metal material having good thermal and electrical conductivity such as, for example, aluminum), so that the surface 130 Direct PCB printing or already closely bonding the PCB 132 to the surface 131 of the ridge (see FIG. 2), and directly mounting the LED module 120 to the PCB 132.

It is more preferable that the thickness of the surface of the ridge on which the PCB 132 is printed is made to be as thin as possible (for example, 0.7 to 12 mm) so as to increase the thermal conductivity than when the thickness is thick.

Furthermore, the outer surface connected to the outside from the base housing 100 itself or the support tuck 137 is made of a heat conductor (a metal material of aluminum has the most appropriate thermal conductivity and conductivity at the same time, most preferably). The heat generated from the LED module 120 to the PCB 132 is properly distributed from the surface 131 of the ridge to the outer side along the side wall (side) and the support tuck 137 of the ridge to properly overheat the phenomenon. It can be overcome.

At this time, the outer surface of the base housing 100 is formed with a protrusion 140 for increasing the surface area to increase the maximum heat dissipation effect.

The protrusion 140 has a structure in which a plurality of protrusions protrude from the outer surface of the base housing 100 to the outside on the opposite side of the surface to which the cover housing 200 is attached. That is, the surface area of the base housing 100 is sufficiently increased by the protrusion 140 so that heat generated from the LED module 120 to the PCB 132 is evenly distributed along the entire surface of the base housing 100 as much as possible. Overloading the module 120 to the PCB 132 or the temperature inside the base housing 100 may be prevented as much as necessary.

In particular, in order to solve the problem that the fluorescent lamp shape is not derived when the base housing 100 and the cover housing 200 are coupled due to the existence of the protrusion 140, and thus, the fluorescent lamp shape is not inserted into the fluorescent lamp storage case installed on the wall or wall. As illustrated in FIG. 2, the outer surface of the base housing 100 in which the protrusion 140 is formed is recessed inwardly by the height of the protrusion 140, and the base housing is formed by the final height of the protrusion 140. It is preferable to set so that the radius of curvature of 100) corresponds to the shape of a general fluorescent lamp.

In addition, an appropriate number of through holes (not shown) may be formed through the outer surface of the base housing 100 toward the inner side to naturally dissipate heat therein.

Referring to the enlarged partial view of FIG. 2, the reflector plate 150 is formed on the surface 131 of the ridge and the PCB 132 (or the surface of the ridge in which the PCB is integrally formed), so that the LED module 120 is formed. It can be seen that the protrusions are formed based on the surface 131 and the reflecting plate 150 of the ridge.

Figure 3 is a perspective view showing a schematic shape of the reflecting plate according to the present invention, Figure 4 is a longitudinal cross-sectional view showing the end structure of the reflecting plate according to the present invention.

Reflector plate 150 according to the present invention is provided to maximize the phenomenon that the LED module 120 is concentrated in the dimming surface direction of the cover housing 200, the surface preferably to simultaneously act the reflection and heat dissipation effect It is made of a material such as aluminum that is smoothly molded to reduce the roughness of the metal as much as possible.

As can be seen from FIG. 3, the reflector 150 is recessed to secure a wide range of reflection angles while minimizing surface roughness for maximizing reflection (eg, to maximize reflection). It is possible to provide a plurality of reflective units 151 having a predetermined matrix structure in which the formed portion, or the convex portion other than the reflective recess) is formed. Of course, the reflecting plate 150 may be formed as one reflector without the combination of the reflecting units 151.

By the reflector 150, it is possible to ensure the light concentration, light diffusivity, or light concentration of the LED housing of the cover housing 200 by 50% or more than when the reflector 150 is absent.

As can be seen from FIGS. 3 and 4, both ends of the reflecting plate 150 have a reflecting plate bent portion 151 bent downward so that the reflecting plate bent portion 151 surrounds the first protrusion 133. The reflective plate 150 is coupled to the side of the ridge 130.

In addition, although not shown in the drawings, when the reflector plate 150 is formed of a single reflector, the surface of the LED module 120 is illuminated by the uneven surface formed in a zigzag form. It provides a characteristic that can be concentrated and expanded in the direction.

In the space provided below the surface 131 of the ridge, a control box 160 connected to an external power source is installed to play a power supply role and other known functions to the PCB 132 to the LED module 120.

Referring back to FIG. 2, the cover housing 200 according to the present invention has a semi-cylindrical shape (not necessarily limited to a semi-cylindrical shape, but may have a similar three-dimensional shape) like the base housing 100. And bent portions 210 are provided at both ends, and an inner circumferential surface thereof includes irregularities 220.

The cover housing 200 is appropriate to have a certain elasticity rather than elastic material such as glass to be bendable when bonded to the base housing 100, preferably made of a material such as acrylic to ensure transparency At the same time, it is possible to have a predetermined elasticity.

In addition, a fluorescent layer containing a fluorescent material such as phosphate-based (Ca ₂ (PO ₄ ) ₂ -CaF ₂ : Sb, etc.) silicate-based or pure tungstate-based (CaWO ₄ or MgWO ₄ ) on the inner surface of the cover housing This coating treatment may produce a visual effect as if using a known fluorescent lamp.

The bent portion 210 has a chamfer treatment portion C that has been chamfered on one side (the portion corresponding to the chamfer treatment portion of the second protrusion in FIG. 2), like the second protrusion 134, and is bent. The portion 210 is inserted into the second recess 136 to achieve a close coupling relationship between the cover housing 200 and the base housing 100. At this time, the cover housing 200 can be stretched by its elasticity.

In addition, an uneven portion 220 is formed at an inner portion of the dimming surface of the cover housing 200. The uneven part 220 is provided by forming an inner side of the cover housing 200 ruggedly according to a predetermined rule by a continuous combination of protrusions and grooves, and when the light beams by the LED module 120 arrive, the diffuse reflection By causing light diffusion, the light beam can be diffused at a wider width and angle.

Referring to the operation of the device according to the invention by such a configuration in more detail as follows.

  The bent portion 210 of the cover housing 200 approaches toward the second recess 136 of the base housing 100 so as to preferentially combine the two. At this time, since the cover housing 200 has a constant elasticity, the bending portion 210 is guided to slide in the second recess 136 in a state in which a force is exerted slightly to the outside. A chamfer treatment portion C is formed at each of the bent portions 210 and the second protrusions 134 to face each other, so that the bent portion 210 is subjected to a natural sliding movement when the two are in contact with each other. It serves as a guide that is more smoothly inserted into the set (136).

When the cover housing 200 is coupled to the base housing 100 through such a process, the elasticity of the cover housing 200 causes the two to form a close coupling relationship, and further, the chamfer of the first protrusion 133. The treatment site C may be coupled to the concave-convex portion 220 of the cover housing 200 formed at the periphery thereof to ensure a more tight and secure coupling relationship between the two. (To this end, the premise that the protrusion angle of the uneven portion and the chamfer treatment angle of the first protrusion must be the same)

When power is applied through a switch provided separately, the LED module 120 is light-emitting. At this time, the surface of the cover housing 200, that is, the dimming surface is made transparent / translucent, but the surface of the base housing 100 is formed opaque so that the light beam of the LED module 120 to the dimming surface of the cover housing 200 Try to focus more intensively.

First, the internal residual heat generated by the light emission of the LED module 120 and the operation of the PCB 132 / control box 160 is generated at the side of the ridge 130 on the surface 131 of the ridge made of a material having high thermal conductivity. It extends beyond the support tuck 137 to the outer surface, which is due to the good conductivity of the surface 131 of the ridge of the metal material on which the PCB 132 is directly integrally printed, and also of the base housing 200. The surface area is sufficiently secured by the protrusion 140 formed on the outer surface (outer circumferential surface) so that the heat is sufficiently rubbed with the outside air to maintain the inside of the base housing 100 at an appropriate temperature.

In addition, when the LED module 120 is formed to protrude from the PCB 132 to have the cover housing 200 directional, but the light reflected from the inner side of the cover housing 200 is reduced to the LED module 120 again. The reduced light beam is re-reflected by the reflecting plate 150 to ensure more light concentration, so that the reduced light beam has directivity with respect to the dimming surface of the cover housing 210.

At this time, the concave-convex portion 220 protrudes from the inner side of the illumination surface of the cover housing 200, and the concave-convex portion 220 may secure a wider angle so that LED light can be diffused as a wider range. It provides a convenient function.

By this action, the device according to the present invention has the characteristics of luminous intensity and visual similar effect that can replace the existing fluorescent lamp, and provide power prevention and durability guarantee, excellent heat dissipation effect and light concentration / diffusion effect. .

In addition, it is manufactured to have a power specification such as 10 to 100 W, such as a conventional fluorescent lamp, it is sufficiently possible to be configured so that there is no problem in replacing the fluorescent lamp.

As described so far, the configuration and operation of the LED lighting apparatus for replacing a fluorescent lamp according to the present invention have been expressed in the above description and the drawings, but this is merely an example, and the spirit of the present invention is not limited to the above description and the drawings. Various changes and modifications are possible without departing from the technical spirit of the present invention.

1 is a perspective view showing a schematic appearance of the LED lighting device for replacing a fluorescent lamp according to the present invention.

Figure 2 is a longitudinal sectional view specifically showing the internal configuration of the device according to the invention.

3 is a perspective view showing a schematic shape of a reflecting plate according to the present invention;

4 is a longitudinal sectional view showing the end structure of the reflecting plate according to the present invention;

<Explanation of symbols for the main parts of the drawings>

100: base housing 140: protrusion

110: connecting portion 150: reflector

120: LED module 151: reflection unit

130: ridge 152: reflective recess

131: surface of the ridge 160: control box

132: PCB 200: cover housing

133: first projection 210: bent portion

134: second projection 220: uneven portion

135: first recess C: chamfer treatment site

136: second recess

137: support jaw

Claims (9)

LED lighting device for fluorescent lamp replacement, Consists of a connection portion connected to a known fluorescent lamp socket, a PCB for controlling the LED module, and an LED module protruding a predetermined length along the dimming direction on the PCB, wherein at least the portion extending from the PCB attachment portion to the outer surface is opened. A base housing having a plurality of protrusions on an outer side thereof in order to increase surface area in a state made of a conductive material; It is made of a material having a certain elasticity is detachably coupled to the base housing, the cover housing having a dimming surface for emitting a light beam of the LED module to the outside; including, Fluorescent lamp replacement LED lighting device, characterized in that can be used as a fluorescent lamp replacement. The method of claim 1, The base housing, And a ridge extending protruding at right angles in the direction of the dimming surface of the cover housing from the supporting jaw formed horizontally symmetrically horizontally from the outer surface thereof. The PCB is formed on the surface of the raised portion, fluorescent lamp replacement LED lighting device. The method of claim 2, The PCB, LED lighting apparatus for replacing a fluorescent lamp, characterized in that printed integrally on the surface of the ridge. The method of claim 2, The side of the ridge, A first protrusion extending laterally from the surface of the ridge; A second projection protruding in parallel with the first projection from an upper end of the support jaw below the first projection; A first recess provided between the first and second protrusions; And a second recess provided between the second protrusion and the support jaw, and recessed deeper inward than the first recess. The method of claim 4, wherein The cover housing, With additional bends at both side ends, And the bent portion is fitted into the second recess to form a coupling relationship between the cover housing and the base housing. The method of claim 1, On the PCB surface, And a reflecting plate for reflecting light rays of the LED module to an illuminating surface of the cover housing. The method of claim 6, The reflector is, An LED lighting device for replacing a fluorescent lamp, characterized in that a plurality of reflection units having a reflection recess recessed inward. The method of claim 1, LED lighting apparatus for replacing a fluorescent lamp, characterized in that a plurality of uneven portion; is further formed on the inner surface of the dimming surface of the cover housing. The method of claim 1, And a fluorescent layer made of a fluorescent material on an inner portion of the illuminating surface of the cover housing, wherein the fluorescent lamp replacement LED lighting device is further formed.

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