KR101260822B1 - Street lamp head - Google Patents

Abstract

PURPOSE: A streetlight head is provided to reduce a volume thereof by integrating a module mounting part with a heat sink. CONSTITUTION: A combination part(10) is combined with a pillar. A module mounting part(20) is extended from the combination part. The module mounting part mounts a light emitting diode module. A heat sink includes a plurality of first through holes and second through holes. A plurality of heat radiation fins are inserted into the second through holes, respectively.

Description

Street lamp head {Street lamp head}

The present invention relates to a street lamp head, and more particularly, to a street lamp head that can quickly release the heat generated from the lamp unit installed in the street lamp.

In general, sodium bulbs are mercury bulbs, and sodium bulbs and mercury bulbs have advantages and disadvantages, but they are used for proper use. However, light tends to be scattered in all directions. The brightness of the low, compared with the power consumption is a lot of energy efficiency is low.

Therefore, recently, streetlights using light emitting diodes (LEDs) have been developed. Conventional streetlights using light-emitting diodes have significantly lower power consumption than conventional streetlights using conventional sodium or mercury bulbs, and have higher brightness than traditional streetlights. As it can be extended several times, management costs can be greatly reduced, and replacement with existing streetlights is also increasing.

As such, the light emitting diodes used in streetlights have advantages of high brightness, low power consumption, and long lifespans compared to conventional light bulbs, and thus their use is increasing not only in streetlights but also in various fields such as indoor lighting, decorative lighting, and vehicle lighting.

However, since a single light emitting diode alone cannot satisfy the high brightness required by a street light, a large number of light emitting diodes are usually connected to each other to form a module, and the modules thus configured are connected in series or in parallel. High brightness by configuring a single lamp.

However, when a light emitting diode light connected to a module consisting of a plurality of light emitting diodes is turned on for a long time, a light emitting diode having low heat resistance is damaged by heat, and thus a failure occurs frequently. Because a cooling structure must be provided to prevent failure due to overheating of the lamp by dissipating the heat of the diode, each company that manufactures a streetlight using the light emitting diode emits heat of the light emitting diode using a unique technology.

In order to solve the above problems, Korean Patent No. 10-1035944 discloses a street light fixture having a natural convection heat radiation function.

The street lamp mechanism having a natural convection heat dissipation function includes an upper case coupled to an upper end of the street lamp post; A lower case coupled to a lower portion of the upper case to cover a lower portion, and having a plurality of air distribution holes formed at an edge thereof; In the streetlight mechanism consisting of an LED module unit installed in the lower case to guide the traffic of the vehicle and pedestrians by irradiating light to the LED of the LED module unit, the LED module unit is coupled to the heat sink and the heat sink for radiating heat of the LED And a transparent cover plate coupled to the periphery of the heat dissipation plate to cover the front surface of the substrate, and an upper surface of the upper case having an air distribution hole for air flow in and out of the upper case. As air passes through the air distribution holes formed in the case and the lower case, respectively, heat is radiated in a natural convection manner. The upper case has a streamlined upper surface, and a plurality of protrusions adjacent to the periphery of the air distribution hole on the upper surface. Protrudes, and a bottom surface of the protrusion is formed on an upper side of the upper case. It is is the cover plate installed to be spaced apart from the upper surface of the upper case so as to cover the upper side of the air circulation hole.

However, the street light fixture having a natural convection heat dissipation function is formed of the LED module unit and the heat dissipation plate for dissipating heat generated by the LED module unit is separated from each other, the upper and lower width of the heat sink is the overall street light fixture In addition to the problem of increasing the size and weight of the, the upper case is closed and the lower case is formed in the air distribution hole there is a problem that the heat dissipation efficiency is lowered because the amount of air passing through the heat sink is not substantially large.

The present invention is to solve the conventional problems as described above, by heat dissipating heat generated from the light emitting diode more quickly and with high efficiency to improve the efficiency and life of the light emitting diode, the module mounting portion to which the light emitting diode is mounted And a heat dissipation unit for dissipating heat generated from the light emitting diode is integrally provided to reduce the volume and weight.

Street lamp head according to the present invention for achieving the above object is coupled to the holding portion; A module mounting part extending from the coupling part and provided with an electrode to mount the light emitting diode module; A plurality of first through holes extending from the module mounting part to emit heat generated by the light emitting diode module and penetrating up and down to allow air to pass therethrough, and up and down in an area between the first through holes; A heat dissipation unit provided with a plurality of second through holes penetrating the through; And a plurality of heat dissipation fins respectively inserted into the second through holes.

The heat dissipation fin may have a diameter corresponding to the diameter of the second through hole, and a heat dissipation hole having a diameter smaller than the diameter of the second through hole is formed.

The second through hole is formed to be tapered, and the heat dissipation fin is formed in a shape corresponding to the shape of the second through hole so as to be inserted into the second through hole.

The surface of the heat dissipation portion is characterized in that the reflective layer is coated to reflect the light emitted from the light emitting diode module.

According to the street lamp head according to the present invention, the heat generated from the light emitting diode can be radiated more quickly and with high efficiency to improve the efficiency and life of the light emitting diode, and the module mounting portion to which the light emitting diode is mounted and the heat generated from the light emitting diode are provided. By integrally forming a heat dissipation unit for emitting the volume and the weight of the street light can be reduced.

1 is a side view of a street lamp with a street lamp head according to a first embodiment of the present invention;
FIG. 2 is an enlarged perspective view of the street lamp head shown in FIG. 1. FIG.
Figure 3 is an enlarged perspective view of a street lamp head according to a second embodiment of the present invention.
Figure 4 is an enlarged perspective view of a street lamp head according to a third embodiment of the present invention.

Hereinafter, a street lamp head according to a preferred embodiment of the present invention with reference to the accompanying drawings will be described in detail. 1 and 2 illustrate a street lamp head according to a first embodiment of the present invention.

1 and 2, the street lamp head 1 according to the present invention includes a coupling part 10 coupled to a support 100; A module mounting part 20 extending from the coupling part 10 and provided with an electrode to mount the light emitting diode module 25; A plurality of first through holes 33 extending from the module mounting part 20 to dissipate heat generated by the light emitting diode module 25 and penetrating up and down to allow air to pass therethrough; A heat dissipation unit 30 having a plurality of second through holes 34 penetrating up and down in an area between the first through holes 33; And a plurality of heat dissipation fins 40 respectively inserted into the second through holes 34.

Coupling portion 10 is a portion that is coupled to the upper portion of the support 100 is formed in a rectangular shape, the passage is formed so that the power line for applying power to the light emitting diodes 26 pass through, The outer circumferential surface is formed to be spaced apart from the engaging projection 11 protruding outward so that it is not easily removed when inserted into the support.

The module mounting part 20 is for mounting the light emitting diode module 25, extends from the coupling part 10, and is formed flat so that the upper surface has a predetermined area or more. The upper surface of the module mounting portion 20 is formed so that the electrode terminal 21 is exposed so that the power supplied from the power line to the light emitting diode module 25 can be supplied.

The light emitting diode module 25 mounted on the module mounting unit 20 surrounds a substrate on which the light emitting diode 26 is mounted, an optical lens that focuses light emitted from the light emitting diode 26, a substrate, and an optical lens. It is formed so as to have a cover 27 for screwing the module mounting portion (20). The light emitting diode module 25 contacts the electrode terminal 21 of the module mounting unit 20 by screwing the cover 27 to the module mounting unit 20.

The heat dissipation part 30 extends radially from the edge of the module mounting part 20 and is formed in a mesh structure so that the first through holes 33 are formed in the vertical direction. An edge portion 35 having a shape similar to that of the tennis racket is formed at the edge of the heat dissipation part 30.

The heat dissipation unit 30 is spaced apart from each other at predetermined intervals and extends in parallel with the plurality of first ribs 31, extending in a direction crossing each other with the first ribs 31, and spaced apart from each other at predetermined intervals. A plurality of second ribs 32 extending in parallel are provided, and a second through hole 34 penetrating up and down is formed in an area where the first ribs 31 and the second ribs 32 cross each other. It is.

The first through hole 33 of the heat dissipation part 30 is formed by the first ribs 31 and the second ribs 32, and the first ribs 31 and the second ribs ( The size of the first through hole 33 may be increased or reduced by adjusting the distance between the first and second ribs 32 and the first ribs 31 and 32.

The heat dissipation unit 30 is formed in a honeycomb structure.

The heat dissipation unit 30 is preferably applied to a high thermal conductivity metal material, it is possible to apply a thermally conductive plastic to reduce the overall weight and cost of the street lamp, and to implement a free design.

The heat dissipation fin 40 is inserted into the second through hole 34 and is formed in a shape corresponding to the second through hole 34, and the length of the heat dissipation fin 40 is greater than the depth of the second through hole 34. It is formed at least equal to or longer than the thickness of 30). A thermally conductive adhesive may be applied to an outer circumferential surface of the heat dissipation fin 40 so that the heat dissipation fin 40 may be positioned in the second through hole 34. The heat dissipation fin 40 is preferably applied to a metal having a heat conductivity higher than the heat conductivity of the heat dissipation unit 30.

The heat dissipation fin 40 receives heat transmitted from the first rib 31 and the second rib 32 of the heat dissipation unit 30 while being inserted into the second through hole 34 of the heat dissipation unit 30. Release to the outside.

That is, the first through hole 33 and the second through hole 34 provided in the heat dissipation unit 30 emit heat using both air cooling and conduction methods, respectively.

In the street lamp according to the present invention having the structure as described above, the module mounting portion 20 on which the light emitting diodes 26 are mounted and the heat dissipation portion 30 for dissipating heat generated from the light emitting diodes 26 are integrally formed. In addition to reducing the volume and weight, the first through hole 33 penetrates up and down so that the heat dissipation part 30 can pass air, and the second through hole formed in the heat dissipation part 30. 34) and through the heat radiation fin 40 inserted into the second through hole 34, the heat generated from the light emitting diodes 26 may be quickly released to the outside.

On the other hand, the heat radiation fin of the street lamp head according to the present invention may be formed as shown in FIG. Referring to FIG. 3, the heat dissipation fin 140 has a diameter corresponding to the diameter of the second through hole 34, and a heat dissipation hole 141 having a diameter smaller than that of the second through hole 34 is formed. have.

The heat dissipation hole 141 of the heat dissipation fin 140 penetrates the center of the heat dissipation fin 140 to allow air to pass therethrough, and the heat dissipation fin 140 and the air to increase the heat dissipation performance of the heat dissipation fin 140. The contact area is expanded.

On the other hand, the heat radiation fin of the street lamp head according to the present invention may be formed as shown in FIG. Referring to FIG. 4, the upper portion of the heat dissipation fin 240 is wider, and the lower portion thereof is tapered to have a structure of a narrow light receiving narrow. The heat dissipation unit 30 has a second through hole 234 formed in a shape corresponding to the shape of the heat dissipation fin 240 so that the heat dissipation fin 240 is inserted, and an outer circumferential surface of the heat dissipation fin 240 and the second through hole 234. The inner circumferential surface of the) is in contact with the heat is transferred from the heat dissipation unit 30 to the heat dissipation fin 240. Since the heat dissipation fin 240 having the structure as described above does not pass through the second through hole 234, it is easy to install the heat dissipation fin 240.

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The street lamp head according to the present invention described above has been described with reference to one embodiment shown in the drawings, but this is only an example, and those skilled in the art will appreciate that various modifications and equivalent other embodiments are therefrom. I understand that it is possible.

Therefore, the true technical protection scope of the present invention should be defined by the appended claims.

1: street light head
10: coupling part
11: jamming protrusion
20: Module mounting part
21: electrode terminal
25: light emitting diode module
27: cover
30: heat dissipation unit
31: first rib
32: second rib
33: first through hole
34: second through hole
35: border
40: heat radiation fin

Claims (4)

An engaging portion coupled to the support;
A module mounting part extending from the coupling part and provided with an electrode to mount the light emitting diode module;
A plurality of first through holes extending from the module mounting part to emit heat generated by the light emitting diode module and penetrating up and down to allow air to pass therethrough, and up and down in an area between the first through holes; A heat dissipation unit provided with a plurality of second through holes penetrating the through;
And a plurality of heat dissipation fins respectively inserted into the second through holes. The method of claim 1,
The heat dissipation fin has a diameter corresponding to the diameter of the second through hole, the street light head, characterized in that the heat dissipation hole having a diameter smaller than the diameter of the second through hole is formed. The method of claim 1,
The second through hole is formed to be tapered,
The heat dissipation fins are formed in a shape corresponding to the shape of the second through hole so as to be inserted into the second through hole. 4. The method according to any one of claims 1 to 3,
The surface of the heat dissipation unit is a street light head, characterized in that the reflective layer is coated to reflect the light emitted from the light emitting diode module.

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