KR100756897B1 - Led lighting lamp - Google Patents

Abstract

An LED(Light Emitting Diode) lighting lamp is provided to discharge the heat transferred through a heat pipe and a heat sink by using a heat cover. An LED lighting lamp includes a heat sink(330). The heat sink(330) includes a base(331), a plurality of heat radiating fins(332), and a heat pipe(120). The base(331) is coupled to the heat pipe(120). The plurality of heat radiating fins(332) are coupled to the base(331), and have envelope planes on ends thereof. The envelope plane has the same shape as an inner circumference of a heat sink cover(140). The heat pipe(120) is mounted on an aluminum substrate(110), and discharges heat generated from a plurality of LEDs(Light Emitting Diode)(102).

Description

LED lighting lamp

1 is a cross-sectional view of a LED light emitting lamp according to the prior art.

2 is a cross-sectional view of an LED light emitting lamp according to an embodiment of the present invention.

3 is a detailed perspective view of the main portion of FIG. 2.

4 is a cross-sectional view of another main portion of FIG. 2.

5 is a bottom perspective view of the heat dissipation lid of FIG. 2.

6 is a perspective view of main parts of an LED light emitting lamp according to another embodiment of the present invention.

7 is a cross-sectional view of an LED light emitting lamp according to another embodiment of the present invention.

8 is a plan view of principal parts of FIG. 7.

9 is a perspective view illustrating main parts of FIG. 7.

10 is a perspective view of principal parts of an LED light emitting lamp according to still another embodiment of the present invention.

     Explanation of symbols on the main parts of the drawings

102; LED 110; Aluminum substrate

120; Heat Pipe 121; Flange

130, 230, 330, 430; Heatsink

131, 231, 331, 431; Base

140; Heat shield P1; Tightening Screw

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting lamp. In particular, heat pipes and heat sinks having various structures can be used to efficiently dissipate heat generated from LEDs, and also heat generated from LEDs. The heat dissipation cover can be transferred to the heat dissipation cover through pipes and heat sinks, and the heat dissipation can be dissipated through the heat dissipation cover. The present invention relates to an LED luminous lamp that is adapted to make it possible.

Generally, various lightings including headlamps, rear combination lamps, street lamps, and fluorescent lamps of automobiles use a general bulb as a light source.

However, since the bulb has a short service life and low impact resistance, the bulb has a tendency to use a high brightness LED (Light Emitting Diode) having excellent impact resistance as a light source.

In particular, the high-brightness LED can be used as a light source for various lightings, including headlamps, rear combination lamps, street lamps, and fluorescent lamps of automobiles, and the scope of application thereof can be very broad.

As the high-intensity LED as described above generates very high heat when turned on, there are many difficulties in applying and designing it by the exothermic temperature of high heat.

Therefore, in the related art, as shown in FIG. 1, the cover 13 positioned on the rear surface of the substrate 11 to which the plurality of LEDs 2 is attached is formed of a metal material, or the plurality of heat dissipation and atmospheric circulation on the cover 13. The holes 13a are formed to dissipate heat generated from the LED 2 by natural heat dissipation.

However, the heat dissipation structure of the LED light emitting lamp by the natural heat dissipation as described above is limited in its heat dissipation amount, and the heat generated from the LED 2 is higher than the heat dissipation heat, so that the lamp is constantly warmed. In the design of the product, expensive flame retardant and non-flammable materials were selected, as well as an uneconomical problem of using a resin or metal material that does not cause thermal deformation or shrinkage even at high temperatures.

In particular, since LEDs and various electrical connection mechanisms have fragility from high temperatures, they have been a cause of shortening their service life.

The present invention was created to solve the problems of the prior art as described above, the object of the LED light-emitting lamp according to the present invention, by using a heat pipe and a heat sink of various structures can efficiently heat the heat generated from the LED. In addition, the heat generated from the LED can be radiated to the outside by transferring heat generated from the heat pipe and the heat sink to the heat dissipation cover, and cooling and heat dissipation efficiency is formed by forming a hole through which outside and bet can enter and exit the heat dissipation cover. It is to provide an LED luminous lamp that is suitable to make it even higher.

The LED emitting lamp according to the present invention for achieving the above object is, in the LED emitting lamp, an aluminum substrate on which a plurality of LEDs are mounted, and a lower end is mounted on the aluminum substrate to dissipate heat generated from the plurality of LEDs. And at least one heat pipe and a heat sink fastened to an upper end of the heat pipe in order to smoothly discharge the heat transferred from the heat pipe.

The LED luminous lamp according to the present invention is characterized in that the heat pipe is mounted directly above the plurality of LEDs.

LED light emitting lamp according to the invention is characterized in that it is configured to further comprise a heat dissipation cover coupled to the aluminum substrate.

In the LED light lamp according to the present invention, the heat sink is characterized in that the heat pipe is joined by welding.

The LED luminous lamp according to the present invention is characterized in that the heat sink is composed of a base fastened to the heat pipe and a plurality of heat dissipation fins fastened to the base.

LED lighting lamp according to the present invention, the heat sink, the base is fastened to the heat pipe, a first heat dissipation fin module consisting of a plurality of heat dissipation fins fastened to the base, a predetermined distance from the first heat dissipation fin module spaced apart from the base Characterized in that composed of a second heat radiation fin module consisting of a plurality of heat radiation fins fastened to the.

LED lighting lamp according to the present invention, the heat sink is composed of a base to be coupled to the heat pipe and a plurality of heat dissipation fins fastened to the base, the plurality of heat dissipation fins are formed at the end of the encapsulation surface is the heat dissipation It is formed in the same way as the shape of the inner peripheral surface of the cover.

The LED light emitting lamp according to the present invention is characterized in that the heat dissipation fin of the first heat dissipation fin module and the heat dissipation fin of the second heat dissipation fin module are formed in the same shape as the inner circumferential surface of the heat dissipation cover.

LED lighting lamp according to the present invention is characterized in that it further comprises a plurality of air access holes formed in the front lower side and the lower side of the heat dissipation cover so that the outside air is introduced into the interior and the bet out the outside. .

LED lighting lamp according to the present invention is characterized in that it further comprises a plurality of rear air entry hole formed in the rear of the heat dissipation cover in order to allow the outside air to be introduced into the inside and the outside to flow out.

LED lighting lamp according to the present invention further includes a fastening screw for fastening the heat pipe and the aluminum substrate by screwing the flange fastened to the lower end of the heat pipe and the fastening hole formed in the flange and the fastening hole formed in the aluminum substrate. It is characterized in that the configuration.

The LED luminous lamp according to the present invention is characterized in that the LED luminous lamp is a street lamp.

The LED luminous lamp according to the present invention is characterized in that the LED luminous lamp is a fluorescent lamp.

Next will be described in detail with reference to the accompanying drawings, preferred embodiments of the present invention LED light emitting lamp.

The technical field to which the LED light-emitting lamp according to the present invention is applied is various LED light-emitting lamps including headlamps or rear combination lamps of automobiles, and more preferable applications are street lamps (ie, LED street lamps) and fluorescent lamps (ie, LED fluorescent lamps). In the embodiment of the present invention will be described taking the case implemented in the street lamp as an example.

FIG. 2 is a cross-sectional view of the LED lighting lamp according to an embodiment of the present invention, FIG. 3 is a detailed view of the main part of FIG. 2, and FIG. 4 is a detailed cross-sectional view of another main part of FIG. 2. 5 is a bottom perspective view of the heat dissipation cover 140 is shown.

As shown in Figure 2 and 3, the LED light emitting lamp according to an embodiment of the present invention, including an aluminum substrate 110, heat pipe 120, heat sink 130 and heat dissipation cover 140 It is composed.

The aluminum substrate 110 is equipped with a plurality of LEDs 102 for irradiating high brightness light.

The heat pipe 120 has a lower end mounted on the aluminum substrate 110 to transfer heat generated from the plurality of LEDs 102 to the upper end to radiate heat.

In addition, the heat pipe 120 is preferably mounted at a position directly above the aluminum substrate 110 on which the plurality of LEDs 102 are mounted. This is because heat generated from the LED 102 can be transmitted to the outside more efficiently.

Thus, the heat pipe 120 is both a heat transfer medium and a first heat dissipation means.

On the other hand, since the heat pipe 120 is a configuration known to those skilled in the art before the present application, a detailed description of the operation principle and structure will be omitted.

The heat sink 130 is fastened to the top of the heat pipe 120 in order to smoothly discharge the heat transferred from the heat pipe 120.

The heat sink 130 is preferably joined to the heat pipe 120 by welding.

The heat sink 130 includes a base 131 fastened to the heat pipe 120 and a plurality of heat dissipation fins 132 fastened to the base 131.

The heat sink 130 is a second heat dissipation means.

The heat dissipation cover 140 is coupled to the aluminum substrate 110, and receives heat generated from the LED 102 through the heat pipe 120 and the heat sink 130 to radiate heat to the outside. That is, the heat dissipation cover 140 heats the heat of the LED 102 transmitted through the heat pipe 120 and the heat sink 130 by an air cooling method.

Since the heat dissipation cover 140 is directly coupled to the aluminum substrate 110, the heat of the aluminum substrate 110 is directly conducted to the heat dissipation cover 140 to radiate heat, and the heat pipe 120 is secondarily. And heat dissipated heat transferred through the heat sink 130.

The heat dissipation cover 140 is preferably implemented with a metal having high thermal conductivity, and may be implemented with aluminum in consideration of economical and thermal conductivity. Therefore, the heat dissipation cover 140 is a third heat dissipation means.

As shown in FIG. 2 and FIG. 5, a plurality of air access holes 140a are formed in the front lower part and the side lower part of the heat dissipation cover 140. Outside air (that is, cold air outside) is introduced into the lamp through the plurality of air access holes 140a, and the inside air, that is, the hot air inside, flows out.

In addition, a plurality of rear air access holes 140b are formed at the rear of the heat dissipation cover 140. Outside air is introduced into the inside through the plurality of rear air access holes 140b, and the inside of the outside is discharged to the outside.

On the other hand, the fixed pipe (B1) is mounted on the rear end of the heat dissipation cover 140 is configured to support and secure the support (not shown), the inside and outside air entering and exiting the rear air access hole (140b) the fixed pipe ( Access will be possible via B1).

As described above, the air access hole 140a is formed at the lower side of the side or the front, and the rear air access hole 140b is formed inside the heat dissipation cover 140 to prevent rain water from flowing in when the lamp is installed outside. You can do it.

Reference numeral (C) is known as a 'cover lens' to function to pass the light irradiated from the LED 102 and to prevent foreign matter from entering the interior of the lamp.

Next, a coupling configuration of the heat pipe 120 and the aluminum substrate 110 will be described.

As shown in FIG. 4, in an embodiment of the present invention, the flange 121 and the flange fastened to the lower end of the heat pipe 120 are configured to fasten the heat pipe 120 to the aluminum substrate 110. The fastening screw P1 is screwed into the fastening hole 121a formed in the 121 and the fastening hole 110a formed in the aluminum substrate 110 to fasten the heat pipe 120 and the aluminum substrate 110. have.

Fastening of the flange 121 to the heat pipe 120 is preferably fastened by welding. This is because the fastening strength can be increased and the fastening can be performed simply.

Hereinafter, another embodiment of the present invention will be described. The same technical content as the embodiment shown in FIGS. 2 to 4 will be omitted and described based on other technical features.

6 is a perspective view of main parts of an LED light emitting lamp according to another embodiment of the present invention.

As illustrated in FIG. 6, in the LED light emitting lamp according to another embodiment of the present invention, the heat sink 230 is fastened to the base 231 fastened to the heat pipe 120 and the base 231. The first heat dissipation fin module 230a composed of a plurality of heat dissipation fins 232a and a plurality of heat dissipation fins 232b spaced apart from the first heat dissipation fin module 230a by a predetermined distance D and fastened to the base 231. Characterized in that it is composed of a second heat radiation fin module 230b.

That is, the heat sink 230 shown in FIG. 6 is separated into a first heat dissipation fin module 230a and a second heat dissipation fin module 230b, and heat flows by the separation space S having a width D of a predetermined length. (heat flow) (shown by the dotted arrow) is made smoothly so that the hot air inside can be discharged to the outside smoothly.

FIG. 7 is a cross-sectional view of the LED lighting lamp according to another embodiment of the present invention, FIG. 8 is a plan view of the main part of FIG. 7, and FIG. 9 is a perspective view of the main part of FIG. 7.

According to another embodiment of the present invention as shown in Figure 7 to 9, the heat sink 330, the base 331 is fastened to the heat pipe 120 and a plurality of fastened to the base 331 Comprising a heat dissipation fin 332, the plurality of heat dissipation fins 332 is characterized in that the envelope is formed in the same shape as the inner peripheral surface of the heat dissipation cover 140.

That is, the height of the heat sink 330 is configured to be symmetrically higher from the edge toward the center line (E), which is to ensure that the heat sink fin 332 of the heat sink close to the heat dissipation cover 140 so that the heat dissipation cover ( 140) to allow the heat to be transferred more smoothly.

10 is a perspective view of main parts of an LED light emitting lamp according to another embodiment of the present invention.

As shown in FIG. 10, the heat sink 430 of the LED lighting lamp according to another embodiment of the present invention is a combination of the heat sink 230 of FIG. 6 and the heat sink 330 of FIG. 7. The heat dissipation fin 432a of the first heat dissipation fin module 430a and the heat dissipation fin 432b of the second heat dissipation fin module 430b are formed in the same shape as that of the inner circumferential surface of the heat dissipation cover 140. It is characterized by. Reference numeral 431 is a base, of course.

The following describes the operation of the LED light emitting lamp of the present invention having the configuration as described above.

First, a process of assembling the heat pipe 120 and the heat sink will be described.

First, as shown in FIG. 4, the heat pipe 120 is fastened to the aluminum substrate 110 by a fastening screw P1 to which the flange 121 is fastened by welding. 110).

Then, the heat sinks 130, 230, 330, 430 are fastened by welding to the plurality of heat pipes 120 assembled as described above.

The following describes the heat dissipation effect by the LED light emitting lamp having the configuration as described above.

Heat generated from the LED 102 is transferred to the aluminum substrate 110 and the heat transferred to the aluminum is transferred to the bottom of the heat pipe 120 to transfer heat to the top while the heat pipe 120 operates.

The heat transferred to the upper end by the operation of the heat pipe 120 is transferred back to the heat sinks 130, 230, 330, and 430, and the heat sinks 130, 230, 330, and 430 radiate heat.

The heat sinks 130, 230, 330, and 430 radiate heat into the interior space of the lamp, and the heat radiated into the interior space of the lamp is discharged to the outside through the plurality of air access holes 140a, and a plurality of rear surfaces. It flows out through the rear air access hole 140b and the fixed pipe (B1).

In particular, when the heat sink is configured as a separate module, that is, in the case of the heat sinks 230 and 430, the heat flow is more smoothly through the intermediate separation space S (that is, the plurality of air access holes ( Since the separation space is present between the 140a) and the rear air access hole 140b, the heat flow becomes smoother).

On the other hand, as described above, a part of the heat radiated by the heat sinks 130, 230, 330, 430 is transmitted to the heat dissipation cover 140, the heat dissipation cover 140 releases the received heat back to the outside.

In particular, since the heat sinks 330 and 430 are very close to the heat dissipation cover 140, the heat transfer efficiency to the heat dissipation cover 140 becomes higher, and as a result, the heat dissipation may proceed more smoothly.

On the other hand, since the aluminum substrate 110 is directly coupled to the heat dissipation cover 140, the heat of the aluminum substrate 110 is directly conducted to the heat dissipation cover 140 to be discharged to the outside.

Therefore, the lamp according to the present invention radiates heat generated by the LED 102 through four heat transfer routes.

The first heat transfer route is LED (102) ?? Aluminum substrate (110) Heat pipe (120) ?? Heat sinks (130, 230, 330, 430) Air inlet (140a), the second heat transfer route is LED (102) ?? Aluminum substrate (110) Heat pipe (120) ?? Heat sinks (130, 230, 330, 430) Rear air access hole (140b) Fixed pipe (B1), the third heat transfer route is LED (102) ?? Aluminum substrate (110) Heat pipe (120) ?? Heat sinks (130, 230, 330, 430) Heat shield 140 and the fourth heat transfer route is LED 102; Aluminum substrate (110) The heat dissipation cover 140.

In the exemplary embodiment of the present invention, the heat pipe 120 and the aluminum substrate 110 are fastened by the fastening screw P1, but the present invention is not limited thereto, and of course, the fastening may be fastened by riveting. Of course, it belongs to the technical scope of this invention.

In an embodiment of the present invention, the heat sink is described with an example of two heat dissipation fin modules, but the present invention is not limited thereto. For example, even when three heat dissipation fin modules are configured to have two separation spaces, the present invention is described. Of course belongs to the technical scope of.

The above embodiments of the present invention are merely one embodiment of the technical idea of the present invention, and of course, other modifications are possible within the technical idea of the present invention.

LED light emitting lamp of the present invention having the configuration and action as described above has the following effects.

First, the heat pipe 120 and the heat sink 130, 230, 330, 430 using the heat generated from the LED 102 can be effectively radiated to the outside.

Second, heat generated from the LED 102 is transferred to the heat dissipation cover 140 through the heat pipe 120 and the heat sink, and the heat dissipation cover 140 radiates the heat to the outside to more efficiently dissipate heat. It can be effective.

Third, when the heat sink is configured as a separate module, that is, in the case of the heat sinks 230 and 430, the heat dissipation may be more actively performed because the heat flow is more smoothly through the intermediate separation space.

Fourth, in the case of the heat sink 330, 430 is very close to the heat dissipation cover 140, the heat transfer efficiency to the heat dissipation cover 140 is higher and, as a result, the heat dissipation can proceed more smoothly. .

Fifth, by directly coupling the heat dissipation cover 140 to the aluminum substrate 110, there is an effect that can further increase the heat dissipation efficiency.

Sixth, since the heat dissipation at the same time by the four heat transfer routes as described above it is possible to heat more quickly and efficiently.

Seventh, the air access hole 140a is formed at the lower side of the side or front, and the rear air access hole 140b is formed inside the heat dissipation cover 140 so that, for example, rain water may enter even when the lighting is installed outside. There is no effect.

Claims (15)

delete delete In the LED lighting lamp: An aluminum substrate 110 on which a plurality of LEDs 102 are mounted; One or more heat pipes (120) having a lower end mounted on the aluminum substrate (110) to dissipate heat generated from the plurality of LEDs (102); A heat sink fastened to an upper end of the heat pipe 120 to smoothly discharge heat transferred from the heat pipe 120; And Is coupled to the aluminum substrate 110, is configured to include a heat dissipation cover 140 for receiving heat generated from the LED 102 through the heat pipe 120 and the heat sink 130 to radiate heat to the outside. , The heat pipe (120), LED lighting lamp, characterized in that mounted on the upper side of the plurality of LED (102). delete The method according to claim 3, wherein the heat sink 130, A base 131 fastened to the heat pipe 120; And, LED lighting lamp, characterized in that consisting of a plurality of heat dissipation fins (132) fastened to the base (131). The method according to claim 3, wherein the heat sink 230, A base 231 fastened to the heat pipe 120; A first heat radiation fin module 230a composed of a plurality of heat radiation fins 232a fastened to the base 231; And, LED emitting light, characterized in that composed of a second heat radiation fin module 230b composed of a plurality of heat radiation fins 232b fastened to the base 231 spaced apart from the first heat radiation fin module 230a by a predetermined interval (D). . The method according to claim 3, The heat sink 330 is composed of a base 331 fastened to the heat pipe 120 and a plurality of heat dissipation fins 332 fastened to the base 331, The plurality of heat dissipation fins (332) is an LED light emitting lamp, characterized in that the envelope is formed in the same shape as the inner peripheral surface of the heat dissipation cover 140. The method according to claim 6, The heat dissipation fin 332a of the first heat dissipation fin module 330a and the heat dissipation fin 332b of the second heat dissipation fin module 330b are formed in the same shape as that of the inner circumferential surface of the heat dissipation cover 140. LED light emitting lamp, characterized in that. The method according to any one of claims 3, 5, 6, 7 or 8, LED light emission, characterized in that it further comprises a plurality of air access hole (140a) formed in the front lower side and the lower side of the heat dissipation cover 140 so that the outside air is introduced into the interior and the outside air flows out Lighting. The method according to claim 9, LED light, characterized in that it further comprises a plurality of rear air entry hole (140b) formed in the rear of the heat dissipation cover 140 to allow the outside air to be introduced into the inside and the outside to flow out. The method according to any one of claims 3, 5, 6, 7 or 8, A flange 121 coupled to a lower end of the heat pipe 120; And, The fastening screw P1 is screwed into the fastening hole 121a formed in the flange 121 and the fastening hole 110a formed in the aluminum substrate 110 to fasten the heat pipe 120 and the aluminum substrate 110. LED luminous lamp, characterized in that further comprises. The method according to claim 9, A flange 121 coupled to a lower end of the heat pipe 120; And, The fastening screw P1 is screwed into the fastening hole 121a formed in the flange 121 and the fastening hole 110a formed in the aluminum substrate 110 to fasten the heat pipe 120 and the aluminum substrate 110. LED luminous lamp, characterized in that further comprises. The method according to claim 10, A flange 121 coupled to a lower end of the heat pipe 120; And, The fastening screw P1 is screwed into the fastening hole 121a formed in the flange 121 and the fastening hole 110a formed in the aluminum substrate 110 to fasten the heat pipe 120 and the aluminum substrate 110. LED luminous lamp, characterized in that further comprises. The method according to any one of claims 3, 5, 6, 7 or 8, LED emitting light is characterized in that the street light. The method according to any one of claims 3, 5, 6, 7 or 8, The LED light emitting lamp, characterized in that the fluorescent light.

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