KR101045457B1 - Led lamp - Google Patents

Led lamp Download PDF

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Publication number
KR101045457B1
KR101045457B1 KR1020100013434A KR20100013434A KR101045457B1 KR 101045457 B1 KR101045457 B1 KR 101045457B1 KR 1020100013434 A KR1020100013434 A KR 1020100013434A KR 20100013434 A KR20100013434 A KR 20100013434A KR 101045457 B1 KR101045457 B1 KR 101045457B1
Authority
KR
South Korea
Prior art keywords
heat dissipation
dissipation cover
pcb
led lamp
led
Prior art date
Application number
KR1020100013434A
Other languages
Korean (ko)
Inventor
최재영
Original Assignee
희성전자 주식회사
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Publication date
Application filed by 희성전자 주식회사 filed Critical 희성전자 주식회사
Priority to KR1020100013434A priority Critical patent/KR101045457B1/en
Application granted granted Critical
Publication of KR101045457B1 publication Critical patent/KR101045457B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/232—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

PURPOSE: A converter embedded an LED lamp is provided to improve assemblity by applying a vertical connector to not only the structure, which couples a radiant heat cover and a lens, but also the LED module. CONSTITUTION: The lower part of a radiant heat cover(300) includes a plurality of connecting apertures and hitching protrusions on the sides of connecting apertures. A hook portion includes the end part of a contact surface with the angle of inclination upward. A guide hook is assembled in the hitching protrusion of the radiant heat cover and gets strong elasticity so that prevents flow by vibration. A plurality of the hook portions is formed at the location corresponding to the connecting aperture and the hitching protrusion in a lens(400). The end part of the contact surface is assembled in the hitching protrusion of the radiant heat cover.

Description

Light Emitting Diode Lamp with Built-in Converter {LED lamp}

The present invention relates to a light emitting diode (hereinafter referred to as "LED") lamp, more specifically, a simple fastening structure of the heat dissipation cover and the lens and a vertical connector applied to the LED module, the assembly is simple and the manufacturing process is simplified, The present invention relates to an LED lamp which reduces the number of parts and is effective for improving productivity.

LEDs have high efficiency for converting power into light, and are widely used for displays and indicators. Recently, due to the development of a blue LED and a white LED that can supply white light by using a fluorescent material having an emission spectrum corresponding to red and green, research on the use of the LED as an illumination is being actively conducted.

Compared to incandescent lamps and fluorescent lamps, which are currently used, the efficiency of light is much higher than that of unit power, and the economic efficiency is excellent. Moreover, the amount of light can be obtained even at low voltage. It is a trend.

In particular, with the development of white LEDs, the luminous brightness represented by the unit output is gradually improved, which solves the problem of lack of brightness, and white luminous LEDs whose luminous brightness exceeds the luminous brightness of traditional incandescent light bulbs have already been commercialized. The commercialization of white light LEDs will soon be realized.

However, even when using LEDs for lighting, there is a limit to the amount of light that can be obtained through one LED, and thus it is difficult to obtain enough light as desired. Therefore, a large number of LEDs are needed to obtain enough light for lighting. The lamp should be used. In this case, it is more economical to use as few LEDs as possible by flowing more current per unit LED since the more economically the more LEDs are used, the lower the economics are.

In addition, while the LED has a high efficiency of converting power to light, the light emitting part is made of a semiconductor device, which is relatively weak to heat compared to light emitting devices such as incandescent lamps using filaments or fluorescent lamps using cathode rays. In other words, the LED is easily degraded due to thermal stress caused by its own heat generated from the light emitting device when the LED is used for a long time, thereby degrading its performance. Therefore, in order to send a large amount of current to the LED, a heat dissipation structure for effectively dissipating heat generated therefrom becomes a very important factor. Therefore, the poor heat radiation effect is an important problem of the current LED for use in lighting.

In addition, the lighting LED lamp is configured by fastening not only the LED element, but also a socket, a lamp case, a heat dissipation cover, and a front lens. In the related art, the complicated structure of each component makes the manufacturing and assembly process difficult and the manufacturing cost increases. There was a problem.

The present invention has been proposed to solve the above problems, the object of the present invention is to provide a converter built-in LED lamp simple structure and assembly by applying a vertical connector to the LED module and the structure that the heat dissipation cover and the lens can be simply fastened. It is done.

In addition, another object of the present invention is to provide an LED lamp with a built-in converter that can simplify the manufacturing process by reducing the number of parts constituting the lamp, and improve the productivity.

In the converter-embedded LED lamp of the present invention for achieving the above object, the case, the heat dissipation cover and the lens is fastened, the converter built-in LED lamp is mounted inside the converter PCB and the LED module PCB, a plurality of lower portion in the heat dissipation cover Fastening jaws are formed to the outside of the fastening hole and the fastening hole, a plurality of hooks are formed in a position corresponding to the fastening hole and the locking jaw, the hook portion has a shape in which the end of the contact surface has an inclination angle upward The guide hook is assembled to the locking jaw of the heat dissipation cover to prevent flow due to the vibration with strong elasticity, and the coupling hook is assembled to the locking jaw of the heat dissipation cover in the shape of the end of the contact surface having the inclined angle downward to prevent the detachment. Characterized in that configured to be fastened to the hook portion of the dual structure.

In the above-described configuration, the LED module PCB is provided with a connector housing in the center of the substrate of the LED module PCB, the connector header is provided at the end of the wire connected to the converter PCB for electrical connection with the converter PCB The connector header is configured to be fastened to the connector housing in a vertical direction.

The LED lamp with a built-in converter according to the embodiment of the present invention has a structure in which the heat dissipation cover and the lens can be simply fastened and a vertical connector is applied to the LED module, thereby simplifying the structure and assembly. By reducing the quantity, the manufacturing process can be simplified and productivity can be improved.

1 is a side cross-sectional view showing an LED lamp according to an embodiment of the present invention,
2 is an exploded perspective view showing an LED lamp according to an embodiment of the present invention,
3 is a perspective view showing a case of the LED lamp according to an embodiment of the present invention,
4A and 4B are perspective views illustrating a heat dissipation cover of the LED lamp according to the embodiment of the present invention;
5 is a perspective view showing a lens of the LED lamp according to an embodiment of the present invention,
6a and 6b are detailed views showing the fastening structure of the heat dissipation cover and the lens according to the embodiment of the present invention;
7 is a perspective view showing the LED module PCB of the LED lamp according to the embodiment of the present invention,
8 is a cross-sectional view showing a connector of the LED module PCB according to an embodiment of the present invention.

The technical problem achieved by the present invention and the practice of the present invention will be apparent from the preferred embodiments described below. The following examples are merely illustrated to illustrate the present invention and are not intended to limit the scope of the present invention. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a side cross-sectional view showing an LED lamp according to an embodiment of the present invention, Figure 2 is an exploded perspective view showing an LED lamp according to an embodiment of the present invention, Figure 3 is a case of an LED lamp according to an embodiment of the present invention 4 is a perspective view showing a heat dissipation cover of the LED lamp according to an embodiment of the present invention, Figure 5 is a perspective view showing a lens of the LED lamp according to an embodiment of the present invention, Figure 6 is Detailed view showing a fastening structure of the heat dissipation cover and the lens according to the embodiment, Figure 7 is a perspective view showing the LED module PCB of the LED lamp according to an embodiment of the present invention, Figure 8 is an LED module according to an embodiment of the present invention A cross-sectional view showing a connector of a PCB.

1 and 2, the LED lamp according to the embodiment of the present invention is a socket 100 connected to an external power source, a case 200 in which a driving module for driving the LED lamp is mounted therein, and an LED lamp. The heat dissipation cover 300 for dissipating the generated heat to the outside, the lens 400 for diffusing the light emitted from the LED element to the front is sequentially coupled, the inside of the case by applying an external power to the LED lamp The converter PCB 500 is mounted with a driving element for driving the LED, and the LED module PCB 600 with a plurality of LEDs 620 is fastened between the heat dissipation cover 300 and the lens 400.

Looking at this in more detail, the above-described socket 100 is a configuration for supplying power to the lamp is connected to the external power supply, a general spiral socket base having a two-pole electrode terminal, for example made of an E26 base Can be.

The case 200 is a component for fastening the various elements for driving the LED lamp therein, and protect them, it may be made of a heat-resistant plastic material.

Referring to FIG. 3, the case 200 has a hemispherical shape, and a spiral socket coupling portion 210 is formed at the top thereof to be coupled to the socket 100, and the converter PCB 500 is fastened to the bottom thereof. A cylindrical fastening part 220 is formed to be coupled with the heat dissipation cover 300.

In addition, a plurality of through holes 230 communicating internal and external parts are formed in a vertical direction on the inclined surface of the case 200 having a hemispherical shape to discharge heat generated in the case 200 to the outside, and Guide protrusions 224 for guiding the heat dissipation cover 300 are formed on the outer circumferential surface so that the heat dissipation cover 300 can be easily fastened.

The heat dissipation cover 300 described above is configured to prevent the malfunction of the LED lamp and extend its life by dissipating heat generated when the LED lamp is driven to the outside and protecting various elements due to heat.

4A and 4B, the heat dissipation cover 300 includes a plurality of radial heat dissipation ribs 320 in a vertical direction to the inside and the outside of the cylindrical side wall 310. In particular, a passage 323 for air flow is formed between the outer heat dissipation ribs 322 so that heat transferred to the ribs 322 can be efficiently discharged.

In addition, a guide groove 314 corresponding to the guide protrusion 224 of the case 200 is formed on an inner wall of the heat dissipation cover side wall 310, and a ground for electrical ground is formed on one side of the heat dissipation rib 321. The terminal fastening part 330 is formed, and a groove 311 is formed at the upper end of the side wall to smoothly flow air into and out of the heat dissipation cover 300.

In addition, a plurality of fastening holes 312 and a locking jaw 313 are formed at an outer side of the fastening hole 312 at a lower portion of the heat dissipation cover 300. The hook part 410 is inserted and fixedly fastened by the locking step 313.

The above-described lens 400 is configured to diffuse light emitted from the LED element at a wide angle forward, and is formed in a dome shape using glass or plastic of transparent or translucent material.

Referring to FIG. 5, a plurality of hooks 410 corresponding to the position of the fastening 312 of the heat dissipation cover 310 are formed at the edge of the lens 400 to be inserted into the fastening hole 312. It is fixed to the locking jaw 315.

Here, the hook part 410 is for preventing the lens 400 from flowing out of the heat dissipation cover 300 by vibration and preventing the fastening of the fastening of the guide hook 411 and the lens 400 to be firmly coupled. It consists of a pair of hooks of the engagement hook 412.

6A and 6B, referring to the fastening structure of the heat dissipation cover 300 and the lens 400 according to an embodiment of the present invention, the fastening hole 312 of the heat dissipation cover 300 of the lens 400 is described. The hook part 410 is inserted, and the hook part 410 of the lens is coupled while being caught by the locking step 313 of the heat dissipation cover.

At this time, as shown in Figure 6a, the guide hook 411 of the hook portion 410 is formed so that the end of the contact surface 411a to be inclined at a predetermined angle upwards, the locking step 313 anywhere on the inclined surface It is coupled while being caught, the lens 400 is prevented from flowing from the heat dissipation cover 300 when an impact or vibration is applied by the strong elasticity of the guide hook 411.

In addition, as shown in Figure 6b, the engaging hook 412 of the hook portion 410 is formed in a ring shape in which the end of the contact surface 412a is inclined horizontally or downwards, and is caught by the locking jaw 413 Is coupled while being built, by the ring shape of the coupling hook 412 to prevent the lens 400 is separated from the heat dissipation cover 300.

Referring back to FIGS. 1 and 2, the converter PCB 500 described above is a transformer for converting an AC power into a DC power and a voltage for driving an LED device. LED driving elements 520 such as and the like are disposed.

The above-described LED module PCB 600 is configured to function as a light source of a lamp, and a plurality of LED 620 elements are bonded to a lower surface of the disk-shaped PCB substrate 610.

7 and 8, the LED 620 emits light by receiving power from the converter PCB 500, and a connector 630 is provided at the center of the PCB substrate 610.

The connector 630 includes a connector housing 631 and a connector header 632 fastened to the connector housing 631, and the connector housing 631 is integrally provided at the center of the PCB board 610. The connector header 632 is provided at an end of the wire 700 connected to the converter PCB 500. In particular, the connector 630 according to the embodiment of the present invention is configured such that the connector header 632 is fastened to the connector housing 631 in the vertical direction as shown in FIG. 8.

Power for driving the LED module is supplied through a power wire 700 connected from the socket 100 to the LED module PCB 600.

Meanwhile, a heat transfer plate 800 may be further provided between the LED module PCB 600 and the heat dissipation cover 300 to efficiently transfer heat generated from the LED module to the heat dissipation cover 300. Heat generated in the LED module of the PCB by the heat transfer plate 800 may be directly transmitted to the heat dissipation cover 300 to be efficiently discharged.

The LED lamp having the above structure is fixed to the converter PCB 500 by screwing the inside of the case 200, the case 200, the heat dissipation cover 300, the heat transfer plate 800 and the LED module PCB 600 ) Is fixedly coupled to the screw sequentially by the coupling hole 222 of the case 200, for this purpose, a screw is passed through the heat dissipation cover 300, the heat transfer plate 800 and the LED module PCB 600 Holes are formed.

Although the embodiments of the present invention have been described with reference to the present invention, those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom.

100: socket
200: case
300: heat dissipation cover
400: Lens
500: Converter PCB
600: LED Module PCB
700: power wire
800: electric plate

Claims (2)

In the converter built-in LED lamp that the case, the heat dissipation cover and the lens is fastened, and the converter PCB and the LED module PCB are mounted inside,
A plurality of fastening holes 312 and a locking jaw 313 are formed on the outside of the fastening hole 312 under the heat dissipation cover 300, and the fastening holes 312 and a locking jaw ( A plurality of hook portion 410 is formed at a position corresponding to 313,
The hook portion 410 has a shape in which the end of the contact surface 411a has an inclination angle upward and is assembled to the locking jaw 313 of the heat dissipation cover 300 at any place of the inclined surface to prevent flow due to vibration with strong elasticity. Guide hook 411 and the end of the contact surface (412a) is coupled to the hook of the double structure by the coupling hook 412 to be assembled to the engaging projection 313 of the heat dissipation cover 400 in a ring shape to prevent separation Converter built-in LED lamp, characterized in that configured to. The method of claim 1,
The LED module PCB 600 is provided with a connector housing 631 in the center of the substrate 610 of the LED module PCB 600, for electrical connection with the converter PCB 500, the converter PCB 500 Connector header (632) is provided at the end of the wire (700) to be connected, the connector embedded LED lamp, characterized in that the connector header (632) is configured to be fastened in a vertical direction to the connector housing (631).
KR1020100013434A 2010-02-12 2010-02-12 Led lamp KR101045457B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100013434A KR101045457B1 (en) 2010-02-12 2010-02-12 Led lamp

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Application Number Priority Date Filing Date Title
KR1020100013434A KR101045457B1 (en) 2010-02-12 2010-02-12 Led lamp

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KR101045457B1 true KR101045457B1 (en) 2011-07-01

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013009049A2 (en) * 2011-07-08 2013-01-17 Lg Innotek Co., Ltd. Lighting device
WO2013148239A1 (en) * 2012-03-30 2013-10-03 3M Innovative Properties Company Electrical connectors for solid state light
KR101859439B1 (en) 2011-07-08 2018-05-21 엘지이노텍 주식회사 Lighting device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006313717A (en) 2005-04-08 2006-11-16 Toshiba Lighting & Technology Corp Bulb type lamp
JP2009004130A (en) 2007-06-19 2009-01-08 Sharp Corp Illuminating device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006313717A (en) 2005-04-08 2006-11-16 Toshiba Lighting & Technology Corp Bulb type lamp
JP2009004130A (en) 2007-06-19 2009-01-08 Sharp Corp Illuminating device

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9353915B2 (en) 2011-07-08 2016-05-31 Lg Innotek Co., Ltd. Lighting device
CN105909994A (en) * 2011-07-08 2016-08-31 Lg伊诺特有限公司 Lighting device
KR101859439B1 (en) 2011-07-08 2018-05-21 엘지이노텍 주식회사 Lighting device
CN103649637A (en) * 2011-07-08 2014-03-19 Lg伊诺特有限公司 Lighting device
EP2729733A2 (en) * 2011-07-08 2014-05-14 LG Innotek Co., Ltd. Lighting device
EP2729733A4 (en) * 2011-07-08 2014-11-26 Lg Innotek Co Ltd Lighting device
WO2013009049A3 (en) * 2011-07-08 2013-02-07 Lg Innotek Co., Ltd. Lighting device
US9562674B2 (en) 2011-07-08 2017-02-07 Lg Innotek Co., Ltd. Lighting device
EP3073188A1 (en) * 2011-07-08 2016-09-28 LG Innotek Co., Ltd. Lighting device
WO2013009049A2 (en) * 2011-07-08 2013-01-17 Lg Innotek Co., Ltd. Lighting device
US8931921B2 (en) 2011-07-08 2015-01-13 Lg Innotek Co., Ltd. Lighting device
CN104204663A (en) * 2012-03-30 2014-12-10 3M创新有限公司 Electrical connectors for solid state light
US9175813B2 (en) 2012-03-30 2015-11-03 3M Innovative Properties Company Electrical connectors for solid state light
CN104204663B (en) * 2012-03-30 2017-06-13 3M创新有限公司 For the electric connector of solid state lamp
WO2013148239A1 (en) * 2012-03-30 2013-10-03 3M Innovative Properties Company Electrical connectors for solid state light

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