KR101121947B1 - Bar type floodlight - Google Patents

Abstract

PURPOSE: A bar-shaped floodlight is provided to maximize thermal performance since a heat radiation fin installed inside an air ventilation portion is heat-released by the circulation of the air. CONSTITUTION: A housing(1) integrates a power supply unit insertion part(11) and an air ventilation part(12). A light penetrating/diffusing plate fixing bar(14) is detachably coupled by screws. Heat radiation fin fixing grooves(121,122) are formed in the longitudinal direction at regular intervals. Adhesive fills between the heat radiation fin fixing groove and the contact part of the heat radiation fin. A waterproof packing blocks moisture and foreign material.

Description

Bar type floodlight

The present invention relates to a bar-type floodlight, and more particularly, in the production of a bar-type floodlight using a light emitting diode (LED) having low heat generation and low power consumption as a light source, the housing itself is light in weight and has very good thermal conductivity. The heat dissipation fins, which diffuse and dissipate heat, are extruded so that the power supply insertion part, the air distribution part, and the printed circuit board installation part are integrally formed using a conductive / polymer thermal radiation resin material containing a tube (CNT). Printed circuit board and light having a light emitting diode chip including a housing are formed by magnesium (Mg) alloy, which is a series alloy, and thinly formed separately from the housing and inserted into the heat radiation fin fixing grooves formed on the upper and lower surfaces of the housing. The floodlight and diffuser plate corresponds to the light output capacity of the floodlight to be manufactured The multi-purpose bar flood lamps are invented so that they can be cut and combined with each other and then combined with each other. It is about.

Generally, various light sources such as fluorescent lamps, neon lamps and halogen lamps have been preoccupied as flood lamps, landscape lamps, and advertisement lamps, but in recent years, light emitting diodes (LEDs) have been used as light sources in these fields. The trend is in the spotlight. The reason why the LED is spotlighted as a light source is because of the device characteristics of the LED.

Conventional light sources emit light using mercury lamps, but the LEDs are environmentally friendly because they do not use mercury, and are low in power consumption, thus saving maintenance costs. Has

In addition, the use of LED is increasing in brightness and luminous efficiency, and it is driven by low voltage so that there is no risk of electric shock.

In view of this, in recent years, a lighting device using a light emitting diode (LED) as a light source has been proposed, and with the development of technology, a light emitting diode which emits light with low power consumption and high brightness has been developed and is gradually being used. Since the light emitted from the high-brightness LED has a strong straightness, when the LED chip is packaged so that the light can be irradiated over a large area, the light emitted from the LED chip is dispersed, for example, 12 °. Lens, 25 ° lens, 30 ° lens, 45 ° lens, etc. can be divided and used.

Conventional bar lamps (such as floodlights, landscape lamps, advertising lamps, etc.) using the LEDs include a bar-shaped housing having a predetermined length; A printed circuit board having a predetermined length installed inside the housing; A plurality of LEDs installed on the printed circuit board at predetermined intervals and emitting light; It is composed of a power supply unit for supplying power to the LED.

As a conventional bar-shaped LED lighting device in Patent No. 10-0834973 can be used to produce lighting in a bending state using only a plurality of bar-shaped lighting units without a separate lighting structure, building a number of bar-shaped lighting units stepped LED landscape lighting system that can be easily installed on the wall is proposed.

Such LED landscape lighting apparatus includes a connection member body having a predetermined length, and a connection member having circular protrusions formed at both sides along a length direction of the connection member body; A plurality of lighting units having a predetermined length and fitted at both sides thereof to be rotated to the projection of the connecting member; It is disposed inside the lighting unit, and includes a light emitting module for emitting a plurality of light by receiving power from the outside.

However, in the LED landscape lighting device, a light emitting module including a light emitting diode, a PCB, and a control unit is disposed inside the unit body of the lighting unit, and the unit body has an end cover coupled to both sides to protect the light emitting module. Since the inside is kept in a sealed state, there is a problem that effective heat dissipation is not achieved.

That is, since the LED landscape lighting device is difficult to efficiently dissipate heat emitted from a plurality of high-brightness light emitting diodes to the outside, the light emission efficiency may not be lowered by heat and damage to components may occur. have.

In addition, Patent No. 10-0903305 also has a PCB that serves as a power supply device in the housing of the rectangular cylindrical shape with a plurality of heat radiation fins formed on the side, both sides thereof are sealed by a bracket, the LED formed on the upper side of the housing Disclosed is an LED lighting apparatus in the form of a fluorescent lamp, in which a rod-shaped LED portion and a lens portion are mounted in a receiving portion and a cover formed on the top thereof to cover the LED portion and the lens portion to protect them.

However, the LED lighting device of the Patent No. 10-0903305 adopts a structure for sealing the inside of the housing with a bracket, the heat dissipated to the lower side of the LED portion has a structure that does not effectively radiate heat.

In addition, the illumination device using the light emitting diode of Unexamined-Japanese-Patent No. 10-2011-0049620 is a housing which has an accommodating groove inside; A heat dissipation fin installed on the housing and having an LED module accommodating groove having at least one inclined surface or mounting surface on which the LED module is mounted and having a plurality of fins extending on an outer circumferential surface of the accommodating groove; A power supply device installed inside the housing; An air circulation passage formed in a longitudinal direction between the housing and the heat dissipation fins; A pair of covers coupled to both ends of the housing and the heat dissipation fins, each of which has an air vent hole configured to allow air circulation at both ends of the air circulation passage; A plurality of LED modules mounted on an upper portion of a metal PCB installed on an inclined surface or a mounting surface of the LED module receiving groove; And a transmission plate coupled to an upper portion of the heat dissipation fin to transmit light generated from the LED module.

However, the housing used in the lighting device using the light emitting diode having such a configuration also has a form in which the heat dissipation fins are extruded using aluminum so that several heat dissipation fins are integrally protruded and formed in an uneven shape on the outside of the housing having the receiving groove. Due to the limitations of the metal materials constituting the heat sink fins, the thickness and volume of the heat sink fins are increased to satisfy the heat dissipation efficiency required and to satisfy the technical limitations of the extrusion molding, thereby increasing the housing size and weight of the lighting device. There is a problem.

In other words, the heat dissipation fins are extruded from aluminum so as to protrude integrally with the outer surface of the housing, so that the thickness and volume and volume of the heat dissipation fins as well as the housing itself are not only high, which increases the production cost of the product and makes it impossible to reduce the weight. have.

The present invention has been made in order to solve such a conventional problem, in the manufacture of a bar-type floodlight using a light emitting diode (LED) with low heat generation and low power consumption as a light source, the housing itself is light in weight and very thermal conductivity Using conductive / polymeric heat-dissipating resin material containing good aluminum or carbon nanotubes (CNT), extrusion molding is performed so that the power supply insertion part, the air distribution part, and the printed circuit board installation part are integrally provided. The heat dissipation fins are made of aluminum (Mg) alloy, which is an alloy of light metals, etc., and are thinly formed separately from the housing and inserted into the heat dissipation fin fixing grooves formed on the upper and lower surfaces of the air distribution part of the housing to be adhesively fixed, and the LED chip including the housing is installed. Printed circuit boards, light floodlights, and diffuser boards emit light from floodlights It is possible to cut each length into a certain length and then combine with each other to cope with the power capacity, so that the heat dissipation fins including the housing can be easily processed, and the production of bar type floodlights is easy, and the processing cost can be greatly reduced, and the weight and size can be reduced. The purpose is to provide a bar-type floodlight that can maximize the heat dissipation effect, and can greatly improve the reliability of the product.

Another object of the present invention, as well as puncturing the air passage hole communicating with the air distribution portion of the housing in which the heat dissipation fins are inserted into the side plate coupled to the side of the housing as well as the contact portion of the housing and the light transmitting and diffuser plate By installing the waterproof bar and the waterproof packing at the contact parts of both sides and the side plates, respectively, the air supply is smoothly distributed to the heat dissipation fin installed in the air distribution part formed through the middle part of the housing by the pressure difference between the two sides of the housing. And it is possible to maximize the heat dissipation effect on the light emitting diodes to provide a bar-type floodlight that can greatly extend the life of the power supply, including billet diodes, as well as significantly improve airtightness.

In the present invention, a bar-shaped housing having a bar shape, a printed circuit board provided with several light emitting diode chips, a light transmitting and diffusing plate, a power supply, and a light irradiation angle adjusting means, The housing is extrusion-molded using a conductive / polymer heat-dissipating resin material containing aluminum or carbon nanotubes (CNT), and a power supply insertion part and an air distribution part are formed integrally with upper and lower square tubes, respectively. A printed circuit board mounting portion is formed on a bottom surface of the air distribution unit, and a light transmitting and diffusing plate for detachably coupling the light transmitting and diffusing plates in a horizontal direction at the front and rear portions of the printed circuit board mounting portion through several screws. The fixing bar is integrally formed to protrude and includes the openings at both sides of the housing, and the housing at both openings of the light transmitting plate and the diffusion plate. The side plate is injection-molded to have a shape corresponding to the shape of the outer peripheral surface of the both sides of the gong and the light transmitting and diffuser plate, it is characterized in that detachably installed through several screws.

At this time, the side plate is provided with an air passage hole communicated with the air distribution portion of the housing, and each forming a projection protrusion for detachably coupling the light irradiation angle adjusting means, each one of the side plates of the power supply portion Characterized in that further drilled through the power supply line passage hole for supplying an AC voltage.

In addition, a plurality of heat dissipation fin fixing grooves are formed at predetermined intervals in the longitudinal direction from the upper and lower surfaces of the air distribution part of the housing, and the heat dissipation fin fixing grooves are thinly formed of magnesium (Mg) alloy, which is aluminum or a light metal alloy. It is characterized by inserting a plurality of heat radiation fins respectively.

"을 갖도록 성형하고, 상기 방열핀의 저부에는 "┚"자 형상을 갖는 걸림 고정편을 일체로 절곡 성형한 것을 특징으로 한다.At this time, the heat radiation fin fixing groove formed on the lower surface of the air distribution unit of the heat sink fin fixing groove has a side cross section "

It is characterized in that it is molded to have a "," at the bottom of the heat radiation fin is characterized in that the locking fixing piece having a "┚" shape integrally bent molded.

In addition, between the heat dissipation fin fixing grooves formed on the upper and lower surfaces of the air distribution part of the housing and the contact portions of the heat dissipation fins, respectively, a thermally conductive adhesive is filled so that the heat dissipation fins having the upper and lower ends respectively inserted in the heat dissipation fin fixing grooves are formed by air conductive adhesive. Characterized in that it has a form fixedly installed in the housing in the distribution unit.

In addition, the substrate holder having a side surface having a "c" shape so as to be inserted into and fixed to the printed circuit board of the power supply in the horizontal direction from the upper and rear walls in the power supply insertion portion of the housing is formed by protruding integrally. It is characterized by.

In addition, the front and rear edge portions of the power supply insertion portion, the air distribution portion and the printed circuit board installation portion of the housing, respectively, characterized in that the screw coupling holes for fixing the side plate with a screw integrally formed.

In addition, the upper surface of the fixing piece of the light transmitting and diffusing plate and the bottom surface of the light transmitting and diffusing plate fixing bar is characterized in that the waterproof bar insertion groove for installing the airtight bar for maintaining the airtightness is formed, respectively.

In addition, between the both sides of the housing and the inner surface of the side plate is characterized in that it further installed a waterproof packing to prevent various foreign substances, including moisture from the outside.

As described above, according to the bar-type floodlight of the present invention, in the production of a bar-type floodlight using an LED having a low heat generation and low power consumption as a light source, the housing itself is light in weight and has very good thermal conductivity. Using a conductive / polymer heat-dissipating resin material containing), extrusion molding is performed so that the power supply insertion part, the air distribution part, and the printed circuit board installation part are integrally provided, and the heat dissipation fins that diffuse and dissipate heat are aluminum or light metal alloy. Molded separately from the housing by a magnesium (Mg) alloy, etc., inserted into the heat radiation fin fixing grooves formed on the upper and lower surfaces of the housing, the adhesive is fixed to the printed circuit board, light transmitting and diffusing the light emitting diode chip including the housing The plate can be of any length corresponding to the light output capacity of the floodlight to be manufactured. By cutting and then coupling each other, the heat dissipation fins including the housing can be processed easily, and the production of bar-shaped floodlights is easy, and the processing cost can be greatly reduced, thereby reducing the production cost of the product itself, and reducing the weight and size. In addition, the heat dissipation effect can be maximized, which can greatly improve the reliability of the product.

In addition, in the present invention, both sides of the housing including a contact portion of the housing and the light transmitting and diffuser plate as well as puncturing the air passage hole communicating with the air distribution portion of the housing in which the heat radiation fins are inserted into the side plate coupled to the side of the housing. By installing the waterproof bar and the waterproof packing at the contact portion of the side plate and the side plate, respectively, the air flow is smoothly distributed to the heat dissipation fin installed inside the air distribution part which is formed to penetrate the middle part of the housing by the pressure difference between the two sides of the housing. Since the heat dissipation effect on the power supply and the light emitting diodes can be maximized, the lifespan of the power supply can be greatly extended, including bilge diodes, and the failure rate of the product which can greatly improve airtightness can be minimized. It is a very useful invention.

1 is an exploded perspective view of a bar flood lamp of the present invention.
Figure 2 is a perspective view of the coupled state of the present invention bar-shaped floodlight.
3 is a side cross-sectional view of the bar flood lamp of the present invention.
Figure 4 is a side view showing a light irradiation angle adjustment state of the present invention bar type floodlight.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 shows an exploded perspective view of the bar-shaped floodlight of the present invention, Figure 2 shows a perspective view of the coupled state of the bar-shaped floodlight of the present invention, Figure 3 shows a side cross-sectional view of the bar-shaped floodlight of the present invention, Figure 4 It shows a side view showing the light irradiation angle adjustment state of the invention bar-type floodlight.

According to the present invention,

An aluminum printed circuit board 3 having a bar-shaped housing 1, several light emitting diodes 31 chips, a light transmitting and diffusing plate 4, a power supply unit 5, and a light irradiation angle adjusting means 6 In the bar-shaped floodlight provided with

The housing 1,

Extrusion is performed using a conductive / polymer heat-dissipating resin material containing aluminum or carbon nanotubes (CNT), but the power supply insertion part 11 and the air distribution part 12 each having a rectangular tube shape at the top and the bottom thereof are integrated. And a printed circuit board mounting portion 13 is formed on a bottom surface of the air distribution unit 12, and a light transmitting and diffusing plate in a horizontal direction in front and rear of the printed circuit board mounting portion 13 ( The light transmission and the diffusion plate fixing bar 14 for detachably coupling 4) through several screws 8 are integrally formed by extrusion.

Injection molding including both openings of the housing 1 to have shapes corresponding to the outer circumferential shapes of both sides of the housing 1 and the light transmitting and diffusing plate 4 at both openings of the light transmitting and diffusing plate 4. The side plates 7 are characterized in that they are detachably installed through several screws 8.

At this time, the side plate 7 is provided with an air passage hole 71 in communication with the air distribution unit 12 of the housing 1, the coupling protrusion for detachably coupling the light irradiation angle adjusting means (6) ( Each of the side plates 7 is formed to protrude, and one of the side plates 7 is further characterized in that the power supply line passage hole 73 for supplying an AC voltage to the power supply unit 5 is further drilled.

In addition, the heat dissipation fin fixing grooves 121 and 122 are formed at predetermined intervals in the longitudinal direction from the upper and lower surfaces of the air distribution unit 12 of the housing 1, respectively. Between the 122), a plurality of heat dissipation fins 2 thinly formed of a magnesium (Mg) alloy, which is an aluminum or light metal series alloy, are inserted and installed.

"을 갖도록 성형하고, 상기 방열핀(2)의 저부에는 "┚"자 형상을 갖는 걸림 고정편(21)을 일체로 절곡 성형한 것을 특징으로 한다.At this time, the heat dissipation fin fixing grooves 122 formed on the bottom surface of the air distribution unit 12 of the housing 1 of the heat dissipation fin fixing grooves 121 and 122 have side cross-sections thereof.

It is characterized in that it is molded to have a "," the bottom portion of the heat radiation fin (2) is characterized in that the locking fixing piece 21 having a "┚" shape integrally bent molded.

In addition, between the heat dissipation fin fixing grooves 121 and 122 and the contact portions of the heat dissipation fins 2 formed on the upper and lower surfaces of the air distribution unit 12 of the housing 1, respectively, a thermal conductive adhesive 16 is filled to dissipate the heat dissipation fins. The heat dissipation fins 2 having upper and lower ends inserted into the fixing grooves 121 and 122, respectively, have a form in which the heat dissipation fins 2 are fixedly installed in the housing 1 inside the air distribution unit 12 by the thermally conductive adhesive 16. It is characterized by.

In addition, the cross-sectional side surface of the power supply inserting portion 11 of the housing 1 is formed in the horizontal direction in the transverse direction, respectively, so that the side surface is formed with a "c" shaped so as to be fixed by sliding the printed circuit board of the power supply unit 5 in a sliding manner. It characterized in that the substrate fixture 111 having a protruding molded integrally.

In addition, the inner side of the front and rear edges of the power supply insertion portion 11, the air distribution portion 12 and the printed circuit board mounting portion 13 of the housing 1, the side plate 7 with screws 8, respectively. Screw fastener 15 for fixing is characterized in that the integrally formed extrusion.

In addition, a waterproof bar insertion groove for installing an airtight-proof waterproof bar 9 on the upper surface of the fixing piece 41 of the light transmitting and diffusing plate 4 and the bottom of the light transmitting and diffusing plate fixing bar 14, respectively. 411 and 141 are formed.

In addition, between the both sides of the housing 1 and the inner surface of the side plate 7 is characterized in that the waterproof packing 10 is further installed to prevent various foreign substances, including moisture from the outside.

Where 17 is formed on the side of the boundary plate between the power supply insertion portion 11 and the air distribution portion 12 of the housing 1 and the boundary plate between the air distribution portion 12 and the printed circuit board mounting portion 13 It is a power supply and signal line passage groove for allowing a power supply and a signal line connected between the power supply unit 5 and the printed circuit board 3 to pass therethrough.

Referring to the effects of the present invention configured as described above are as follows.

First, the bar floodlight according to the present invention includes a housing 1 having a bar shape, an aluminum printed circuit board 3 on which several light emitting diodes 31 chips are installed, a light transmitting and diffusing plate 4, and a power supply unit ( 5) In the known bar floodlight having the light irradiation angle adjusting means 6, the material for forming the housing 1 and its shape as well as the heat dissipation fins 2 are the same as or different from the housing 1; The housing 1 having a bar shape and a side plate coupled to both side surfaces of the light transmitting and diffusing plate 4 coupled to the bottom of the housing 1 while being separately molded by a material and bonded to the housing ( 7) The main technical components are to improve the shape of the bar and to make the bar floodlight more efficiently, to be lighter and smaller, and to maximize the heat dissipation effect.

That is, in forming the housing 1 having a bar shape, extrusion molding is performed using a conductive / polymer heat-dissipating resin material containing aluminum or carbon nanotubes (CNT) which are light in weight and have very good thermal conductivity. The power supply insertion part 11 and the air distribution part 12 each having a rectangular tube shape are integrally molded, and the printed circuit board installation part 13 is formed on the bottom of the air distribution part 12. Light transmitting and diffusing plate fixing bar 14 for detachably coupling the light transmitting and diffusing plate 4 to each other in the horizontal direction at the front and the rear of the printed circuit board mounting part 13 through several screws 8. ) Is integrally projected and molded.

In addition, the heat dissipation fin fixing grooves 121 and 122 are formed at predetermined intervals in the longitudinal direction from the upper and lower surfaces of the air distribution unit 12 of the housing 1, and the heat dissipation fin fixing grooves 121 ( In addition to the housing 1, a plurality of heat dissipation fins 2, which are formed relatively thin by using a magnesium (Mg) alloy, which is light in weight and has a high thermal conductivity and has a very good thermal conductivity, can be inserted. .

At this time, the thermal diffusion coefficient, thermal conductivity, density, melting temperature and specific heat of the conductive / polymer heat-dissipating resin material containing aluminum and carbon nanotubes (CNT) and magnesium (Mg) alloy of light metal alloy Is shown in the following table.

Item unit Conductive Polymer / Heat Resistant Magnesium (Mg) Alloy Aluminum (Al) Heat diffusion coefficient [Cm 2 / sec] 0.41 -1.64 1.3-1.4 0.84 Thermal conductivity [W / m.K] 90-150 60-90 220-240 density [g / cm 3] 1.4 ± 0.3 1.8 ± 0.3 2.7 Melting temperature [℃] 105-160 595 600-660 specific heat [J / gK] 1.1 ± 0.4 1.02-1.05 0.9

That is, the thermal diffusion coefficient of aluminum (Al) is 0.84 [cm 2 / sec], the thermal conductivity is 220-240 [W / mK], the density is 2.7 [g / cm 3], and the melting temperature is 600-660 [° C.]. ], And the specific heat represents 0.9 [J / gK].

The heat diffusion coefficient of magnesium (Mg), which is a light metal series alloy, is 1.3-1.4 [cm 2 / sec], the thermal conductivity is 60-90 [W / mK], and the density is 1.8 ± 0.3 [g / cm 3]. The melting temperature is 595 [° C.] and the specific heat is 1.02-1.05 [J / gK].

In addition, the thermal diffusion coefficient of the conductive / polymer heat-dissipating resin material containing carbon nanotubes (CNT) is 0.4-1.6 [cm 2 / sec], the thermal conductivity is 90-150 [W / mK], and the density is 1.4 ± 0.3 [ g / cm 3], the melting temperature is 106-160 [° C.], and the specific heat is 1.1 ± 0.4 [J / gK].

As such, the density and specific heat of the conductive / polymer heat-dissipating resin material containing carbon nanotubes (CNT) among the materials used for forming the housing 1 are 1.4 ± 0.2 [g / cm 3] and 1.1 ± 0.4 [J / gK, respectively]. ], And density and specific heat are smaller than aluminum having 2.7 [g / cm 3] and 0.9 [J / gK], respectively, and 0.4-1.6 [cm 2 / sec], unlike aluminum whose heat diffusion coefficient is 0.84 [cm 2 / sec] ] Shows similar or slightly higher characteristics.

Therefore, in forming the housing 1, when forming the conductive / polymer heat-dissipating resin material containing carbon nanotubes (CNT) rather than forming aluminum, the surface area of the housing 1 is less than that of the aluminum 1 As the volume increases the air emission performance of hot electrons, it is more advantageous to reduce the weight, size, and manufacturing cost by molding from conductive / polymeric heat dissipating resin containing carbon nanotubes (CNT) rather than extrusion molding with aluminum. It can be seen.

In addition, when forming the heat dissipation fins 2 into magnesium alloys, which are light metal alloys, the density and specific heat of the heat dissipation fins 2 are 1.8 ± 0.3 [g / cm 3] and 1.02-1.05 [J / gK, respectively]. ], The density and specific heat are smaller than aluminum with 2.7 [g / cm 3] and 0.9 [J / gK], respectively, and the thermal diffusivity is at least 0.4, but average 1.2 and maximum, unlike aluminum with 0.84 [cm 2 / sec] It can be seen that it has a high characteristic of 1.6 [cm 2 / sec] and 60-90 [W / mK] in thermal conductivity compared to aluminum having 220-240 [W / mK].

Therefore, if the heat dissipation fin (2) is formed of a magnesium alloy, which is one of the light metal series alloys, rather than forming the aluminum, the heat dissipation fin (2) is made of a magnesium alloy, which is one of the light metal series alloys, because the atmospheric emission performance of hot electrons is increased even with a small surface area. It can be seen that it is more preferable to mold, and if the heat radiation fin (2) is formed of a magnesium alloy in this way, even if the thickness is formed thinner than when molding with aluminum, the heat radiation fin (2) itself can be reduced because the same heat dissipation effect It can also be seen that it can be thinned.

On the other hand, in the case of forming all of the plurality of heat sink fin fixing grooves 121, 122 formed in the longitudinal direction on the air distribution portion 12, the lower surface of the housing 1 simply "∩" type or "∪" There is a fear that the fixing state of (2) may not be good.

"을 갖도록 성형하고, 상기 방열핀(2)의 저부에는 "┚"자 형상을 갖는 걸림 고정편(21)을 일체로 절곡 성형하여 줌으로써 "┚"자형 걸림 고정편(21)이 일체로 절곡 형성된 방열핀(2)의 저부가 측단면이 "

"을 갖는 방열핀 고정홈(122)에 끼워져 걸리게 되므로 외부에서 어떠한 충격이 가해지더라도 상기 방열핀(2)들이 상,하 방향으로 유동되지 않게 된다.Therefore, in the present invention, the heat dissipation fin fixing grooves 122 formed on the bottom surface of the air distribution unit 12 of the housing 1 of the heat dissipation fin fixing grooves 121 and 122 as necessary, have a side cross-section ".

And the heat dissipation fin formed by integrally bending the locking fixing piece 21 having the “┚” shape at the bottom of the heat dissipation fin 2 by bending the molded piece. The bottom of (2) has a side cross section "

Since the heat sink fins are fixed to the grooves 122, the heat sink fins 2 are prevented from flowing in the up and down directions even if any impact is applied from the outside.

In addition, according to the present invention, a thermally conductive adhesive is formed between the contact portions of the heat dissipation fin fixing grooves 121 and 122 and the heat dissipation fins 2 formed on the upper and lower surfaces of the air distribution unit 12 of the housing 1 as necessary. The heat dissipation fins 2 having upper and lower ends respectively inserted in the heat dissipation fin fixing grooves 121 and 122 are filled with the heat dissipation fins 16 to the housing 1 by the heat conductive adhesive 16. It was to have a form fixedly installed.

In this case, the thermally conductive adhesive 16 has a characteristic of smoothly transferring the heat transmitted through the housing 1 itself to the heat dissipation fins 2, as well as dissipating the heat dissipation fins 2 into the heat dissipation fin fixing grooves 121 and 122. Since each has a function of adhering, the heat dissipation fins 2 are integrally fixed to the housing 1 in a state in which the heat dissipation function of the heat dissipation fins 2 including the housing 1 itself is not affected. do.

In addition, in the present invention, by further protruding and integrally forming the substrate fixing member 111 having a side surface in the transverse direction at the front and rear walls in the power supply inserting portion 11 of the housing 1 in a horizontal direction. It is possible to fix the printed circuit board of the power supply unit 5 by sliding it into the fixing grooves of the substrate fixing parts 111 without being fixed by using screws or the like separately. It can greatly reduce.

Including the housing 1 described above, the printed circuit board 3 and the light transmitting and diffusing plate 4 provided with the light emitting diode 31 chip are formed to be long and have a predetermined length corresponding to the desired light output capacity, if necessary. The cut and then coupled to each other to produce the desired bar-shaped floodlight, wherein both sides of the light-transmitting and diffuser plate 4 including the housing 1 has an open shape.

Accordingly, in the present invention, both side openings of the housing 1 correspond to shapes of both outer peripheral surfaces of the housing 1 and the light transmitting and diffusing plates 4 at both openings of the light transmitting and diffusing plates 4. The side plates 7 were each injection molded to have a shape so as to be detachably installed through several screws 8.

In this case, in order to fix the side plates 7 to the openings on both sides of the housing 1 and the light transmitting and diffusing plate 4 by using the screw 8, the side plates 7 may be mounted on the side of the housing 1 using a drill or the like. When directly forming two screw coupling holes, workability is not very good and there is a risk of damaging a part of the housing itself.

Therefore, in the present invention, the side plate 7 is screwed into the inner and front edges of the power supply insertion part 11, the air distribution part 12, and the printed circuit board installation part 13 of the housing 1, respectively. 8) By screwing the screw coupling portion 15 for integrally fixed protrusions, workability due to the detachment of the side plate 7 is very good, and it is possible to prevent the housing itself from being damaged.

On the other hand, in the present invention, the side plate (7) which is installed in such a way as to block the openings on both sides of the housing (1) and the light transmitting and diffuser plate (4) is in communication with the air distribution section 12 of the housing (1) The heat dissipation fins provided therein, including an air distribution part 12 formed through the housing 1 by the air pressure difference between the two sides of the housing 1 by providing the air passage hole 71 ( 2) Since the air flows smoothly to the side, it is possible to maximize the heat radiation effect on the heat generated from the power supply unit 5 and the light emitting diodes 31 and transmitted through the heat dissipation fins 2 including the housing 1 itself. Therefore, the lifespan of the power supply unit 5 may be significantly extended, including the light emitting diodes 31.

In addition, the side plate 7 has a coupling protrusion for detachably coupling a known light irradiation angle adjusting means 6 composed of a pair of connectors 61, a fixed plate 62, a butterfly bolt 63 and the like ( Each of the side plates 7 as well as further protruding the 72 is formed to further drill the power supply line through hole 73 for supplying an AC voltage to the power supply unit 5 in any one side plate.

As such, the side plates 7 having the shape including the air passage hole 71, the coupling protrusion 72, the power supply line passage hole 73, and the like, including the housing 1, are provided with light transmitting and diffusing plates 4. When directly fixed to the side opening of the side using a few screws (8) or the like, between both sides of the housing (1) and the both sides of the light transmission and diffuser plate 4 and the inner surface of the side plate (7) There is a possibility that a gap is generated from the outside, including moisture or moisture, various foreign matters including the power supply inserting portion 11 into the light transmission and diffusion plate (4).

Therefore, in the present invention, by installing a waterproof gasket 10 having a gasket shape between both side surfaces of the housing 1 and the inner surface of the side plate 7, both side surfaces of the housing 1 and light transmitting and diffusing plates are provided. It is possible to completely prevent the introduction of various foreign matters including moisture from the outside through both side surfaces of (4) and the inner surface of the side plate (7).

In addition, in the present invention, in the longitudinal direction of the fixing piece 41 of the light transmitting and diffusing plate 4 and the bottom surface of the light transmitting and diffusing plate fixing bar 14 in the longitudinal direction respectively inserted into the waterproof bar having an arc shape By forming the grooves 411 and 141 to insert the waterproof bar 9 for airtightness, the gap between the bottom surface of the housing 1 and the top surface of the fixing piece 41 of the light transmitting and diffusing plate 4 is formed. It can completely prevent the inflow of various foreign matters including moisture and moisture that can be introduced through it, thereby minimizing the failure rate of the product due to various foreign matters that can greatly improve the airtightness of bar-type floodlights.

It should be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

1: housing
11: power supply insertion portion 111: substrate fixture
12: air distribution section 121, 122: heat radiation fin fixing groove
13: printed circuit board mounting portion
14: light projection and diffusion plate fixing bar 141, 411: waterproof bar insertion groove
15 screw joint 16: heat conductive adhesive
17: power supply and signal line passing groove
2: heat dissipation fin 21: locking fixing piece
3: printed circuit board 31: light emitting diode
4: light transmission and diffuser plate 41: fixing piece
5: power supply
6: light irradiation angle adjusting means 61: connector
62: fixing plate 63: butterfly bolt
7: side plate 71: air passage hole
72: coupling protrusion 73: power supply line through hole
8: screw
9: waterproof bar for confidentiality
10: waterproof packing

Claims (7)

In constructing a printed circuit board having a housing and several light emitting diodes, a light floodlight and a diffusion plate, a power supply, and a bar-type floodlight provided with a light irradiation angle adjusting means,
The housing is extrusion-molded using a conductive / polymer heat-dissipating resin material containing aluminum or carbon nanotubes (CNT), and integrally formed with a power supply insertion part and an air distribution part each having an upper and lower rectangular tubular shapes. A printed circuit board mounting portion is formed on a bottom surface of the air distribution unit, and light transmission and diffusion for detachably coupling the light transmission and diffusion plate in the horizontal direction at the front and rear portions of the printed circuit board installation portion through several screws. Extrude the plate fixing bar integrally,
Several heat dissipation fin fixing grooves are formed at predetermined intervals in the longitudinal direction from the upper and lower surfaces of the air distribution part of the housing, and a plurality of heat dissipation fin fixing grooves are formed of magnesium (Mg) alloy, which is aluminum or light metal alloy, between the heat dissipation fin fixing grooves. Insert and install the heat sink fins,
The heat dissipation fin fixing groove formed on the lower surface of the air distribution part of the heat dissipation fin fixing groove has a side cross-section "

", And integrally bent and formed a locking fixing piece having a" ┚ "shape on the bottom of the heat radiation fins,
Filling the thermal conductive adhesive between the heat dissipation fin fixing groove and the contact portion of the heat dissipation fin, respectively, and the heat dissipation fins having upper and lower ends inserted into the heat dissipation fin fixing grooves are fixedly installed in the housing in the air distribution part by the heat conductive adhesive,
Including openings on both sides of the housing, both openings of the light transmitting and diffusing plates may be detachably attached to each of the side plates formed by injection molding to have shapes corresponding to the shapes of both outer peripheral surfaces of the housing and the light transmitting and diffusing plates. Install it,
The side plate is provided with an air passage hole communicating with the air distribution portion of the housing, one of the side plates of either side of the power supply line through hole for supplying an AC voltage to the power supply,
On the upper surface of the fixing piece of the light transmitting and diffusing plate and the bottom of the light transmitting and diffusing plate fixing bar, respectively, forming a waterproof bar insertion groove for installing a waterproof bar for maintaining airtightness,
Bar-type floodlight, characterized in that between the two sides of the housing and the inner surface of the side plate is installed a waterproof packing to prevent the inflow of various foreign substances, including moisture from the outside.






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