KR100968270B1 - The led lamp - Google Patents

Abstract

PURPOSE: An LED device is provided to irradiate light emitted from an LED at various angles by mounting a plurality of circuit boards on the outer surface of metal materials. CONSTITUTION: The terminal of a base(110) is mounted on a socket. A metal material(130) is arranged on the lower side of the base. The metal material has a tubular shape. An air path is formed inside the metal material and is connected to the outside through the lower space of the base and a first penetration hole. A first circuit board is mounted on the outer surface of the metal material. A plurality of first LEDs(121) are formed on the first circuit board. A first cover(141) is combined with the metal material to protect the first circuit board.

Description

LED lighting equipment {THE LED LAMP}

The present invention relates to an LED lighting device mounted on a socket such as a street light, a park light, a security light, a security light, etc. and used to irradiate light, and in particular, the light can be irradiated from any angle so that the light efficiency is good. The light emitting diode (LED) greatly increases the lifespan, and relates to an LED lighting device that has excellent economical efficiency and has a beautiful aesthetic.

For example, street lamps are installed in places such as highways, main roads in urban areas, commercial roads, residential roads, and parks, and irradiate light for safety and security of road traffic.

In the past, incandescent lamps and halogen lamps were used to irradiate light, but since power consumption is enormous, recently, LEDs are being used as LED light sources with high energy efficiency, long lifespan, and no pollutants.

The LED emits light when a voltage is applied using a semiconductor to illuminate a road or a park by illuminating light.

For example, Korean Laid-Open Patent Publication No. 10-2003-14953 "Street Lamp Using Fluorescent LED Lamp", Korean Laid-Open Patent Publication No. 10-2009-13011 "High Performance LED Street Light and Its Main Frame", Korean Patent Publication No. 10-0896768 "LED Street Light", Korean Patent Laid-Open Publication No. 10-2009-67333 "Street lamp with LED lamp device" has been disclosed in a number of documents such as a street light technology using the LED as a light source.

However, LEDs have a problem of shortening their lifespan because they generate high heat during light emission. In the past, LEDs radiate heat from LEDs simply by using a heat-dissipating metal body.

In addition, in the past, since the LED is installed only to the ground, since the heat dissipation metal body is located in the flat form on the opposite side of the LED, it can only be installed toward the ground, so it is limited to increase the light efficiency to a higher level than expected. There is.

SUMMARY OF THE INVENTION An object of the present invention is to provide an LED lighting device having excellent light efficiency by irradiating light from any angle.

Another object of the present invention is to provide an LED lighting device excellent in economic efficiency by greatly increasing the life of the LED.

Still another object of the present invention is to provide an LED lighting device which does not have glare by covering a light spot.

Still another object of the present invention is to provide an LED lighting device having a beautiful aesthetic with a beautiful appearance.

In order to achieve the above object, the present invention provides an illumination device configured to electrically connect to a socket of a luminaire installed outside to form a light source for irradiating light on a road or a park, the bar being electrically connected to the socket. A plurality of first LEDs arranged along a length of the first circuit board having a shape to irradiate light; And a tubular metal body formed on the outer periphery for fixing the first circuit board on which the first LEDs are arranged, and having an airway communicating with the outside.

The metal body is fixedly installed in contact with the base to the base of the hollow structure having a terminal coupled to the socket and electrically connected to provide a surface for fixing the first circuit board, the first circuit board is a terminal of the base It is preferably electrically connected with the first LEDs to supply power from the socket.

In addition, a plate-shaped heat sink fixed to the metal body is further provided between the metal body and the first circuit board, the first circuit board is laminated on the heat sink, and the heat sink is preferably installed in contact with the base.

In addition, a partition plate for dividing the inside of the base into two upper and lower spaces is further provided inside the base, and the heat sink is preferably in contact with the base in contact with the lower space.

In addition, the portion of the base forming the lower space is preferably made of a metal material.

In addition, the outer periphery of the base of the metal material, it is preferable that a plurality of heat dissipation projections are further formed.

In addition, the upper space of the base is a converter for converting the power from the socket into a direct current power supply to the first LED through the first circuit board is built-in, the base has a first through hole for contacting the inside and outside of the lower space It is preferable that this be further formed.

The metal body may further include an arc-shaped first cover for covering and protecting the first circuit board on which the first LEDs are arranged, and an unevenness may be further formed on an inner surface of the first cover.

In addition, a second circular circuit board, which is electrically connected to the transducer, is disposed on a cross section opposite to the base of the metal body, with a gap keeping member interposed therebetween, and the second LEDs are further disposed along the circumference of the second circuit board. It is preferable to arrange the array.

In addition, it is preferable that a hole through which air passes is further formed in the center of the second circuit board.

In addition, the second circuit board on which the second LEDs are arranged is preferably further provided with a circular second cover for covering and protecting the second LEDs.

In addition, the second cover is preferably installed on the second circuit board through a projection that is sequentially penetrated through the second circuit board and the gap holding member to the end face of the metal body.

In addition, it is preferable that an arc-shaped protrusion for covering the first cover further protrudes from the peripheral portion of the second cover.

In addition, since the first circuit board is arranged in plural along the outer circumference of the metal body, the first LEDs irradiate light at any angle.

In addition, since the surface of the metal body to which the first circuit board is fixed is formed in a plane, it is preferable that the metal body has a polygonal shape.

In addition, it is preferable that a metal insert is further inserted into the channel of the metal body to enlarge the heat transfer area with respect to the air flow.

In addition, the metal insert is a form in which the radiation wings protrude radially on the outer periphery of the cylindrical body, the insertion of the heat dissipation wings is preferably in contact with the inner circumference of the metal body.

In addition, it is preferable that a plurality of heat dissipation fins protrude further from the heat dissipation wings.

By the above solution, since light can be irradiated from any angle, the light efficiency is excellent.

In addition, since the life of the LED is greatly increased, it is economical.

In addition, there is no glare because the spot of light is not visible.

In addition, because the appearance is beautiful, it gives a considerable aesthetic.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference numerals designate like parts throughout the drawings.

1 is a view showing a state in which the LED lighting apparatus of the first embodiment of the present invention is mounted on the socket of the street lamp head.

2 is a perspective view showing the LED lighting apparatus of the first embodiment of the present invention, Figure 3 is an exploded perspective view showing the LED lighting apparatus of the first embodiment of the present invention.

4 is a cross-sectional view taken along line II of FIG. 2, FIG. 5 is a cross-sectional view taken along line II-II of FIG. 2, FIG. 6 is an enlarged view of a portion A of FIG. 5 taken at different angles, and FIG. In the first embodiment, the first cover is fitted to the metal body.

8 and 9 are views showing a state of use of the LED lighting apparatus of the first embodiment of the present invention.

As shown in the drawing, the LED lighting apparatus of the first embodiment of the present invention is electrically mounted on a socket 3 of a street lamp, a park lamp, a security lamp, a security lamp, etc. (hereinafter referred to as "light fixture 1"). A connecting base includes a base 110 having an empty structure, and the base 110 forms a cylindrical body as shown in the drawing to produce a design element.

The base 110 is electrically connected by mounting the terminal 111 protruding on the upper end to the socket 3, and is mounted by inserting the terminal 111 into the socket 3. It is preferable that the screw is formed on the outer circumference of the terminal 111 to be screwed to the socket 3.

Inside the base 110, a converter 123 for converting the power of the socket 3 applied via the terminal 111 into a DC power source and supplying the first LEDs 121 to form a light source is provided. It is installed, the converter 123 is preferably used SMPS (SWITCHED-MODE POWER SUPPLY).

SMPS, as is well known, oscillates a high frequency to a desired voltage and then rectifies and filters the power of the socket 3 to a DC power supply to the first LEDs 121, which is optionally used.

That is, when the first LEDs 121 receive AC power from the sockets 3 to emit light, it is noted that the SMPS, that is, the converter 123 is not installed in the base 110.

In this case, the base 110 is installed so that the partition plate 112 is placed horizontally therein, and partitions the interior into two upper and lower spaces 113 and 114, and the transducer 123 is mounted in the upper space 113. On the side surface, a second through hole 115 communicating with the inside and outside of the upper space 113 is formed to effectively dissipate heat generated when the converter 123 is operated.

The lower surface of the base 110 facing the terminal 111 is provided with a metal body 130 of a metallic material having excellent conductivity (eg, aluminum, etc.).

The metal body 130 has a tubular shape formed through the left and right both ends to communicate with the outside to form a tubular shape 131 is fixed to the base 110 by being coupled to the lower end of the base 110 as shown in the figure. In addition, the crossroads 131 are fixedly installed on the bottom surface of the base 110 so as to contact the lower space 114 of the base 110 through the contact holes 116 formed on the bottom surface of the base 110.

At this time, the base 110 forms a first through-hole 117 contacting the inside and the outside of the lower space 114 on the side so that the cross-section 131 of the metal body 130 and the lower space 114 of the base 110 and Through the first through hole 117 to be able to contact the outside.

The metal body 130 forms a plurality of first grooves 132 having a circular bottom on the inner circumference at regular intervals, but is formed along the length of the metal body 130 to penetrate the bottom surface of the base 110. It is firmly installed on the lower surface of the base 110 by being combined with a pin or a screw.

In order to easily couple the metal body 130 to the lower surface of the base 110, and to accommodate the transducer 123 in the upper space 113 of the base 110, as shown in FIG. ) Is divided into an upper side portion and a lower side portion that form the upper space 113 and the lower space 114, respectively, with the side portions on which the divider 112 is installed, that is, formed into a shape separated into three parts. It is preferable that the upper side portion and the lower side portion coupled to the side plate on which the partition plate 112 is installed may be coupled by a method of fitting the fitting protrusions to the fitting holes by forming corresponding fitting protrusions and fitting holes, respectively.

As described above, the first circuit board 125 having a bar shape in which the first LEDs 121 are arranged is fixed to the outer circumference of the metal body 130 coupled to the base 110.

The first circuit board 125 provides a place where the first LEDs 121 can be electrically arranged on the metal body 130, and is electrically connected between the converter 123 and the first LEDs 121. The first LEDs 121 are connected to each other so that the first LEDs 121 may receive power from the converter 123 to irradiate light from the metal body 130.

As such, the first circuit boards 125 in which the first LEDs 121 are arranged are arranged in plural numbers at regular intervals along the outer circumference of the metal body 130, and thus the first LEDs may be formed at any angle (ie, 360 °). By allowing the 121 to irradiate light, the light efficiency of the luminaire 1 is greatly improved (see FIGS. 8 and 9), and the surface 135 of the metal body 130 on which the first circuit board 125 is fixed is provided. ) Is formed in a plane, the metal body 130 forms a polygon such as triangular, square, pentagonal, hexagonal, octagonal.

When the first circuit board 125 on which the first LEDs 121 are arranged is fixed to the metal body 130, the first circuit board 125 on which the first LEDs 121 are arranged on the metal body 130. An arc-shaped first cover 141 is installed to cover and protect the cover.

The first cover 141 has the same structure as a conventional fluorescent tube having an opaque structure by coating a fluorescent material, and is installed on the metal body 130 to protect the first LEDs 121 and the first LEDs 121. ), That is, the spot to avoid glare.

The metal body 130 includes metal grooves having second grooves 133 that can be slidably inserted at both ends of the first cover 141 on both left and right sides of the surface 135 on which the first circuit board 125 is fixed. The first cover 141 may be formed along the length of the 130 to cover the first circuit board 125 on which the first LEDs 121 are arranged.

In addition, a metal insert 150 of a metal material having excellent conductivity (eg, aluminum) is inserted into the channel 131 of the metal body 130.

When the first LEDs 121 emit heat, the heat is conducted to the metal body 130, and air flow is naturally generated in the air passage 131 due to a temperature difference between the inside and the outside, and the metal insert 150 is applied to the air flow. By increasing the heat transfer area for the first LEDs 121 to cool the heat more effectively.

That is, the metal insert 150 receives heat from the first LEDs 121 from the metal body 130 to radiate heat to the airflow flowing along the crossroads 131 to further heat the first LEDs 121. Cooling effectively extends the life of the first LEDs 121 significantly.

The metal insert 150 as described above protrudes the heat dissipation blades 153 radially on the outer circumference of the cylindrical body 151. By contacting the inner circumference of the 130, the first LEDs 121 receive heat from the metal body 130 and radiate heat to the airflow.

In addition, the metal insert 150 protrudes a plurality of heat dissipation fins 155 to further extend the heat transfer area on the heat dissipation wings 153 to more effectively dissipate heat of the first LEDs 121.

In addition, a second circular cross-section which is electrically connected to the transducer 123 between the base 110 of the metal body 130, that is, the left end of the metal body 130 in the drawing, with the spacer 161 interposed therebetween. The circuit board 171 is installed, and the second LEDs 173 are arranged in the second circuit board 171 along the circumference.

The second LEDs 173 are supplied with the power of the converter 123 through the second circuit board 171 to irradiate light from the left end of the metal body 130 to further improve the light efficiency of the luminaire 1. (See FIGS. 8 and 9).

The gap maintaining member 161 may form a space between the second circuit board 171 and the metal body 130 to prevent the crossroad 131 from being blocked from the outside, thereby allowing the crossroad 131 to communicate with the outside smoothly. Make sure

A hole 175 through which air can pass is formed in the center of the second circuit board 171 to effectively dissipate heat of the second LEDs 173 generated in the second circuit board 171.

In addition, the second circuit board 171 on which the second LEDs 173 are arranged is provided with a circular second cover 181 for covering and protecting the second LEDs 173.

The second cover 181 sequentially penetrates the second circuit board 171 and the space keeping member 161 so that the protrusion 183 is fitted into the first groove 132 formed at the left end of the metal body 130. Through the second circuit board 171 is firmly installed.

In this case, the protrusion 183 forms a jaw that is caught by the second circuit board 171 in the middle thereof, and thus the second cover 181 is installed at a distance from the second circuit board 171 so that the second cover 181 is formed. Do not interfere with the cooling of the 2LEDs (173).

The second cover 181 covers the second circuit board 171 on which the second LEDs 173 are arranged, and protrudes an arc-shaped protrusion 185 at the periphery to cover the first cover 141. As a result, a considerable aesthetic feeling can be produced at the left end of the metal body 130.

In addition, the second cover 181 has the same opaque structure as the first cover 141 so that there is no glare by the second LEDs 173.

Accordingly, as shown in FIG. 8, the arrangement of the first LEDs 121 is installed in the socket 3 of the luminaire 1 so that the arrangement of the first LEDs 121 is placed horizontally, or as shown in FIG. 9. Is installed in the socket 3, when the power is supplied from the converter 123, the first LEDs 121 emit light to emit light on the road or park generates high temperature heat.

Since heat generated by the first LEDs 121 emits heat to the metal body 130 via the first circuit board 125, air flow naturally occurs in the air passage 131 due to a temperature difference between inside and outside. Air flows from the left side of the second circuit board 171, that is, from the left end of the metal body 130 to the furnace 131, flows along the furnace 131, and then passes through the lower space 113 of the base 110 and the first through hole. It is formed from the flow exiting through 117.

When the air flow is formed in the airway 131, since the cool air continues to circulate, the metal body 130 can quickly dissipate and cool the heat of the first LEDs 121, and furthermore, the metal insert 150 With the help of), the heat of the first LEDs 121 can be cooled more quickly, so that the life of the first LEDs 121 can be greatly extended.

FIG. 10 is an exploded perspective view showing the LED lighting apparatus according to the second embodiment of the present invention. FIG. 11 is a cross-sectional view showing the LED lighting apparatus according to the second embodiment of the present invention in a longitudinal axis.

As shown in the figure, the LED lighting apparatus of the second embodiment of the present invention removes the metal insert 150, and instead employs a heat sink, thereby changing the structure of the base 110. Since only the light diffusing irregularities are formed on the inner surface of the first cover 141, the remaining components are the same as those of the first embodiment. Explain.

The heat sink 211 has a plate-like shape made of a metal material such as aluminum having excellent conductivity, and includes a first circuit board 125 having the surface 135 and the first LEDs 121 of the metal body 130 arranged thereon. It is installed in between.

The first circuit board 125 is stacked on the heat sink 211 to arrange the first LEDs 121 along the surface 135 of the metal body 130.

The heat sink 211 may be installed to be in close contact with the surface 135 of the metal body 130 or may be installed at a distance from each other. The heat sink 211 may be positioned below the second grooves 133 to which the first cover 141 is fitted. The third grooves 136 formed from the surface 135 of the metal body 130 are slidably fitted to cover the surface 135 of the metal body 130.

At this time, the heat sink 211 is in contact with the base 110, that is, the lower space 114 by being fitted into the slot-shaped fitting hole 118 formed on the lower surface of the base 110.

The heat sink 211 installed in this way forms a gap through which air can communicate with the surface 135 of the metal body 130, and the first LEDs 121 are conducted from the first circuit board 125. By dissipating heat and conducting while distributing heat to the metal body 130 and the base 110, it is possible to effectively dissipate heat of the first LEDs 121.

In addition, the base 110 effectively radiates heat from the first LEDs 121 conducted from the heat sink 211 by forming a side portion of the lower space 114 made of a metal material such as aluminum having excellent conductivity. The heat dissipation protrusion 119 is formed on the outer circumference thereof to more effectively dissipate heat of the first LEDs 121.

When the portion of the base 110 forming the lower space 114 is formed in this way, even if the first through-hole 116 of the first embodiment is not formed, it turns out that there is no problem in heat dissipation.

On the other hand, the inner surface of the first cover 141 is to increase the light efficiency by forming an unevenness (141a) that can scatter and diffuse light along the length.

Until now, the present invention has been described with reference to specific embodiments, but various modifications and changes (eg, LEDs 121 and 173) are provided within the scope of the technical spirit described in the claims of the present invention. It is apparent that the converter 123 is not required by the light supplied from the light emitting device, etc.), so that the detailed description of the present invention and the accompanying drawings should not be construed as limiting the technical spirit of the present invention but merely as an illustration. .

As described above, according to the present invention, it is possible to irradiate light from any angle to provide an LED lighting apparatus which is excellent in light efficiency and excellent in economic efficiency by greatly increasing the life of the LED.

1 is a view showing a state in which the LED lighting apparatus of the first embodiment of the present invention is mounted on the socket of the street lamp head.

2 is a perspective view showing the LED lighting apparatus of the first embodiment of the present invention.

3 is an exploded perspective view showing the LED lighting apparatus of the first embodiment of the present invention.

4 is a cross-sectional view taken along the line II of FIG. 2.

5 is a cross-sectional view taken along the line II-II of FIG. 2.

FIG. 6 is an enlarged view of a portion A of FIG. 5 taken at different angles.

7 is a view showing the first cover is fitted to the metal body in the first embodiment of the present invention.

8 and 9 are views showing a state of use of the LED lighting apparatus of the first embodiment of the present invention.

10 is an exploded perspective view showing the LED lighting apparatus of the second embodiment of the present invention.

11 is a cross-sectional view showing the LED lighting apparatus of the second embodiment of the present invention in the longitudinal axis.

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

1: Luminaire 3: Socket

110: base 111: terminal

112: Partition 113: Upper space

114: lower space 115: second through

116: contact hole 117: first through

118: fitting hole 119: heat radiating protrusion

121: First LED 123: Converter

125: first circuit board 130: metal body

131: Rogi 132: First home

133: second groove 136: third groove

141: first cover 141a: light diffusion irregularities

150: metal insert 151: cylinder

153: heat dissipation wing 155: heat dissipation fin

161: interval holding member 171: second circuit board

173: Second LED 175: Hole

181: second cover 183: projection

185: arc protrusion 211: heat sink

Claims (18)

In the lighting device to be electrically connected to the socket of the luminaire to be installed outside to form a light source for irradiating light on the road or park, A plurality of first LEDs arranged along a length of the bar-shaped first circuit board electrically connected to the socket to irradiate light; And The outer periphery is provided with a surface for fixing the first circuit board arranged the first LED, the inside is configured to include a tubular metal body formed in a cross-contact with the outside through the left and right open ends, Since the first circuit board is arranged in plural along the outer circumference of the metal body, the first LEDs irradiate light from any angle, The metal body is provided with an arc-shaped first cover for covering and protecting the first circuit board arranged the first LEDs, The metal body is fixedly installed in contact with the interior of the base through the contact holes formed in the lower surface of the base on the lower surface of the base having an internal terminal having a terminal coupled to the socket and electrically connected to the socket. Providing a surface for fixing the first circuit board, the first circuit board is electrically connected to a terminal of the base to supply power to the first LEDs from the socket, The side of the base is formed with a first through-hole for contacting the inside of the base and the outside so that the cross of the metal body communicates with the outside through the opening, the contact hole, the inside and the first through-hole of the metal body, When heat generated by the first LEDs is transmitted to the metal body through the first circuit board, air flows into the crossroad through the other open end of the metal body, and the open ends of the metal body, the contact holes and the inside of the base. And an air stream exiting to the outside through the first through hole is formed, and heat of the first LEDs conducted to the metal body is released to the air stream to be cooled. LED lighting device. delete The plate-type heat sink fixed to the metal body is further provided between the metal body and the first circuit board. The first circuit board is stacked on the heat sink, and the heat sink is in contact with the base. LED lighting apparatus characterized in that. According to claim 3, wherein the base is further divided into a partition plate for partitioning the interior of the base into two upper and lower spaces, the heat sink is fitted to the fitting hole formed in the lower surface of the base and the lower space and LED lighting device characterized in that the base facing the facing. The LED lighting apparatus of claim 4, wherein a portion of the base forming the lower space is made of a metal material. The LED lighting apparatus according to claim 5, wherein a plurality of heat dissipation protrusions are further formed on the outer circumference of the base of the metal material. The method of claim 4, wherein the upper space of the base is a converter for converting the power from the socket to direct current power supply to the first LED through the first circuit board is built-in, the first through hole and the contact hole LED lighting apparatus, characterized in that formed on the side and bottom of the base forming a space. According to claim 1, LED lighting device, characterized in that irregularities are further formed on the inner surface of the first cover. The circuit board of claim 8, wherein a circular second circuit board electrically connected to the transducer is disposed on a cross section opposite to the base of the metal body, the second LED being electrically connected to the transducer. LED lighting device, characterized in that further arranged along the circumference. 10. The LED lighting apparatus as claimed in claim 9, wherein a hole through which air passes is formed in the center of the second circuit board. The LED lighting apparatus of claim 9, wherein the second circuit board on which the second LEDs are arranged is further provided with a circular second cover for covering and protecting the second LEDs. 12. The LED lighting apparatus of claim 11, wherein the second cover is installed on the second circuit board through a protrusion that sequentially penetrates the second circuit board and the space keeping member and is fitted to the end face of the metal body. 12. The LED lighting apparatus of claim 11, wherein an arc-shaped protrusion for covering the first cover is further protruded from the periphery of the second cover. delete The LED lighting apparatus of claim 1, wherein the metal body is polygonal because the surface of the metal body to which the first circuit board is fixed is formed in a plane. The LED lighting apparatus of claim 1, wherein a metal insert is further inserted into the cross section of the metal body to enlarge a heat transfer area with respect to the air flow. 17. The LED lighting device according to claim 16, wherein the metal insert has a shape in which radially radiating blades protrude from the outer circumference of the cylindrical body, and the tip of the radiating blades is in contact with the inner circumference of the metal body when inserted into the cross section. Device. 18. The LED lighting apparatus of claim 17, wherein a plurality of heat dissipation fins are further protruded from the heat dissipation wings.

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