WO2013159343A1 - Led light bulb - Google Patents

Led light bulb Download PDF

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Publication number
WO2013159343A1
WO2013159343A1 PCT/CN2012/074841 CN2012074841W WO2013159343A1 WO 2013159343 A1 WO2013159343 A1 WO 2013159343A1 CN 2012074841 W CN2012074841 W CN 2012074841W WO 2013159343 A1 WO2013159343 A1 WO 2013159343A1
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WIPO (PCT)
Prior art keywords
cover
heat conducting
inner cover
led light
light bulb
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Ceased
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PCT/CN2012/074841
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French (fr)
Chinese (zh)
Inventor
陈少藩
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Individual
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Individual
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Priority to PCT/CN2012/074841 priority Critical patent/WO2013159343A1/en
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Ceased legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/507—Cooling arrangements characterised by the adaptation for cooling of specific components of means for protecting lighting devices from damage, e.g. housings
    • 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
    • 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
    • F21K9/238—Arrangement or mounting of circuit elements integrated in the light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/004—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board
    • F21V23/006—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board the substrate being distinct from the light source holder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses
    • 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]

Definitions

  • the utility model belongs to the technical field of lighting lamps, in particular to an LED bulb.
  • the object of the present invention is to provide an LED bulb with a simple structure and good heat dissipation effect.
  • an LED light bulb comprising: a casing, a light-emitting component disposed at a front end of the casing, a lamp cap assembly disposed at a rear end of the casing, and a circuit board disposed in the casing, the lamp cap assembly passing the circuit board Electrically connecting with the light-emitting component
  • the outer casing comprises a heat-conducting outer cover and an inner cover sleeved in the heat-conducting outer cover
  • the light-emitting component is provided with a heat-conducting plate, the heat-conducting plate is in contact with the heat-conductive outer cover, and the light-emitting component is disposed therein
  • the circuit board is disposed inside the inner cover, and the rear end of the inner cover is connected to the base assembly.
  • the light emitting component comprises an aluminum substrate and an LED chip disposed on the aluminum substrate, and the heat conducting plate is disposed at the bottom of the aluminum substrate.
  • the inner cover is provided with a plurality of positioning posts, and the heat conducting plate is correspondingly provided with a plurality of positioning holes, and the heat conducting plate is fixed by a snap fit or a screw through the positioning holes and the positioning posts on the inner cover.
  • the inner cover is provided with a card slot for fixing the circuit board.
  • the circuit board is provided with a card hole, and the inner cover is provided with a positioning buckle for clamping the card hole after the circuit board is inserted into the card slot.
  • a diffuser cover is disposed on the light emitting surface of the light emitting component.
  • the heat conducting plate is provided with a snap structure for fixing the diffusion cover.
  • the base assembly is coupled to the thermally conductive outer cover by an insulating ring.
  • the heat conducting cover is made of aluminum or copper.
  • the inner cover is a plastic inner cover.
  • the utility model is designed as an inner and outer cover structure, and the outer cover is a heat conduction cover, and the heat on the heat conduction plate is directly transmitted to the outside, thereby avoiding the defect that the existing heat conduction cover is disposed inside, which has poor heat dissipation effect, and greatly improves
  • the heat dissipation efficiency of the LED bulb is separately separated from the heat-conducting outer cover, the processing is easier, the structure is simpler, and the existing outer casing is prevented from being single-piece, and the processing is complicated.
  • FIG. 1 is a schematic cross-sectional structural view of an LED bulb of the present invention
  • FIG. 2 is a schematic exploded view of the LED bulb of the present invention.
  • the present invention discloses an LED light bulb, comprising a casing, a light-emitting component disposed at a front end of the casing, a lamp cap assembly 15 disposed at a rear end of the casing, and a circuit board 3 disposed in the casing, and the lamp cap assembly 15
  • the heat conducting outer cover 1 and the inner cover 2 disposed inside the heat conducting outer cover 1 are disposed on the light emitting component, and the heat conducting plate 4 and the heat conducting outer cover 1 are disposed on the light emitting component.
  • the light-emitting assembly is disposed at the front end of the inner cover 2
  • the circuit board 3 is disposed inside the inner cover 2
  • the rear end of the inner cover 2 is coupled to the base assembly 15.
  • the utility model designs the outer casing as the inner and outer cover structure, and the outer cover is a heat conduction cover, and the heat on the heat conduction plate is directly transmitted to the outside, thereby avoiding the defect that the existing heat conduction cover is disposed inside, and the heat dissipation effect is not good, and Separating the mounting inner cover from the heat-conducting outer cover makes it easier to process, and also avoids the fact that the existing outer casing has only a single piece, and the processing is complicated.
  • the light emitting component includes an aluminum substrate 5 and an LED chip 6 disposed on the aluminum substrate 5, and the heat conducting plate 4 is disposed at the bottom of the aluminum substrate 5.
  • the inner cover 2 is provided with a plurality of positioning posts 7 .
  • the heat conducting plate 4 is correspondingly provided with a plurality of positioning holes 8 , and the heat conducting plate 4 is fixed by a snap fit or a screw through the positioning holes 8 and the positioning posts 7 on the inner cover 2 .
  • the two can be fixed by a snap or a screw.
  • the inner cover 2 is provided with a card slot 9 for fixing the circuit board 3.
  • the circuit board 3 is provided with a card hole 10, and the inner cover 2 is provided with a positioning buckle 11 for clamping the card hole 10 after the circuit board 3 is inserted into the card slot 9.
  • the circuit board 3 can be conveniently slid into the inner cover 2, and the removal is also very convenient, thereby greatly improving assembly and rework efficiency.
  • a diffuser cover 12 is disposed on the light emitting surface of the light emitting component.
  • the heat conducting plate 4 is provided with a snap structure 13 for fixing the diffusion cover 12.
  • the base assembly 15 is coupled to the thermally conductive outer cover 1 via an insulating ring 14.
  • the heat conducting cover 1 is an aluminum or copper outer cover
  • the inner cover 2 is a plastic inner cover.

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

Description

一种LED灯泡LED bulb

技术领域 Technical field

本实用新型属于照明灯具技术领域，具体涉及一种LED灯泡。 The utility model belongs to the technical field of lighting lamps, in particular to an LED bulb.

背景技术 Background technique

现有的LED灯泡在运行工作中会产生高温，而高温不但会导致运行不稳，使用寿命缩短，甚至有可能使某些部件烧毁。现有技术中的散热器大多数是在导热板上设置有若干散热片，有些是散热效果差，有些是设计复杂，难以制造，而有些是结构相对比较复杂，增加了在安装的难度。 Existing LED bulbs generate high temperatures during operation, and high temperatures not only result in unstable operation, shortened service life, and may even burn some components. Most of the heat sinks in the prior art are provided with a plurality of heat sinks on the heat conducting plate, some of which are poor in heat dissipation, some are complicated in design, difficult to manufacture, and some are relatively complicated in structure, which increases the difficulty in installation.

实用新型内容 Utility model content

针对现有技术的缺点，本实用新型的目的是提供一种结构简单、散热效果好的LED灯泡。 In view of the shortcomings of the prior art, the object of the present invention is to provide an LED bulb with a simple structure and good heat dissipation effect.

为实现上述目的，本实用新型的技术方案为：一种LED灯泡，包括外壳、设于外壳前端的发光组件、设于外壳后端的灯头组件及设于外壳内的电路板，灯头组件通过电路板与发光组件电连接，其中，所述外壳包括导热外罩及套设于导热外罩内的内罩，所述发光组件上设有导热板，导热板与导热外罩相接触，所述发光组件设于内罩前端，电路板设于内罩内部，内罩后端与灯头组件连接。 In order to achieve the above object, the technical solution of the present invention is: an LED light bulb, comprising: a casing, a light-emitting component disposed at a front end of the casing, a lamp cap assembly disposed at a rear end of the casing, and a circuit board disposed in the casing, the lamp cap assembly passing the circuit board Electrically connecting with the light-emitting component, wherein the outer casing comprises a heat-conducting outer cover and an inner cover sleeved in the heat-conducting outer cover, wherein the light-emitting component is provided with a heat-conducting plate, the heat-conducting plate is in contact with the heat-conductive outer cover, and the light-emitting component is disposed therein At the front end of the cover, the circuit board is disposed inside the inner cover, and the rear end of the inner cover is connected to the base assembly.

所述发光组件包括铝基板及设于铝基板上的LED芯片，所述导热板设于铝基板底部。 The light emitting component comprises an aluminum substrate and an LED chip disposed on the aluminum substrate, and the heat conducting plate is disposed at the bottom of the aluminum substrate.

所述 内罩上设有多个定位柱，导热板上对应设有多个定位孔，导热板通过定位孔与内罩上的定位柱通过卡扣配合或螺丝固定。 Said The inner cover is provided with a plurality of positioning posts, and the heat conducting plate is correspondingly provided with a plurality of positioning holes, and the heat conducting plate is fixed by a snap fit or a screw through the positioning holes and the positioning posts on the inner cover.

所述 内罩上设有用于固定电路板的卡槽。所述电路板上设有卡孔，所述内罩上设有电路板装入卡槽后用于卡住卡孔的定位扣。 Said The inner cover is provided with a card slot for fixing the circuit board. The circuit board is provided with a card hole, and the inner cover is provided with a positioning buckle for clamping the card hole after the circuit board is inserted into the card slot.

所述 发光组件出光面上设有扩散罩。所述导热板上设有用于固定扩散罩的卡扣结构。所述灯头组件通过绝缘环与导热外罩连接。 Said A diffuser cover is disposed on the light emitting surface of the light emitting component. The heat conducting plate is provided with a snap structure for fixing the diffusion cover. The base assembly is coupled to the thermally conductive outer cover by an insulating ring.

所述导热外罩为铝制或铜制外罩。所述内罩为塑料内罩。 The heat conducting cover is made of aluminum or copper. The inner cover is a plastic inner cover.

与现有技术相比较，本实用新型的有益效果在于， Compared with the prior art, the utility model has the beneficial effects that

本实用新型通过将外壳设计为内外罩结构，且外罩为导热罩，将导热板上的热量直接传导至外界，避免现有的导热罩设在内部所造成的散热效果不佳的缺陷，大大提高了LED灯泡的散热效率；另外将安装用内罩与导热用的外罩分开，加工更为容易，结构更为简单，也避免现有的外壳只有单件，而加工复杂的缺陷。 The utility model is designed as an inner and outer cover structure, and the outer cover is a heat conduction cover, and the heat on the heat conduction plate is directly transmitted to the outside, thereby avoiding the defect that the existing heat conduction cover is disposed inside, which has poor heat dissipation effect, and greatly improves The heat dissipation efficiency of the LED bulb is separately separated from the heat-conducting outer cover, the processing is easier, the structure is simpler, and the existing outer casing is prevented from being single-piece, and the processing is complicated.

附图说明 DRAWINGS

图1 为 本实用新型LED灯泡的剖面结构示意图； 1 is a schematic cross-sectional structural view of an LED bulb of the present invention;

图2 为本实用新型LED灯泡的分解结构示意图。 2 is a schematic exploded view of the LED bulb of the present invention.

具体实施方式 detailed description

以下结合实施例及附图对本实用新型进行详细的描述。 The present invention will be described in detail below with reference to the embodiments and the accompanying drawings.

如图1至图2所示，本实用新型公开一种LED灯泡，包括外壳、设于外壳前端的发光组件、设于外壳后端的灯头组件15及设于外壳内的电路板3，灯头组件15通过电路板3与发光组件电连接，其中，所述外壳包括导热外罩1及套设于导热外罩1内的内罩2，所述发光组件上设有导热板4，导热板4与导热外罩1相接触，所述发光组件设于内罩2前端，电路板3设于内罩2内部，内罩2后端与灯头组件15连接。 As shown in FIG. 1 to FIG. 2, the present invention discloses an LED light bulb, comprising a casing, a light-emitting component disposed at a front end of the casing, a lamp cap assembly 15 disposed at a rear end of the casing, and a circuit board 3 disposed in the casing, and the lamp cap assembly 15 The heat conducting outer cover 1 and the inner cover 2 disposed inside the heat conducting outer cover 1 are disposed on the light emitting component, and the heat conducting plate 4 and the heat conducting outer cover 1 are disposed on the light emitting component. In contact with each other, the light-emitting assembly is disposed at the front end of the inner cover 2, the circuit board 3 is disposed inside the inner cover 2, and the rear end of the inner cover 2 is coupled to the base assembly 15.

本实用新型通过将外壳设计为内、外罩结构，且外罩为导热罩，将导热板上的热量直接传导至外界，避免现有的导热罩设在内部所造成的散热效果不佳的缺陷，另外将安装用内罩与导热用的外罩分开，加工更为容易，也避免现有的外壳只有单件，而加工复杂的缺陷。 The utility model designs the outer casing as the inner and outer cover structure, and the outer cover is a heat conduction cover, and the heat on the heat conduction plate is directly transmitted to the outside, thereby avoiding the defect that the existing heat conduction cover is disposed inside, and the heat dissipation effect is not good, and Separating the mounting inner cover from the heat-conducting outer cover makes it easier to process, and also avoids the fact that the existing outer casing has only a single piece, and the processing is complicated.

具体地，所述发光组件包括铝基板5及设于铝基板5上的LED芯片6，所述导热板4设于铝基板5底部。 Specifically, the light emitting component includes an aluminum substrate 5 and an LED chip 6 disposed on the aluminum substrate 5, and the heat conducting plate 4 is disposed at the bottom of the aluminum substrate 5.

进一步地，所述 内罩2上设有多个定位柱7，导热板4上对应设有多个定位孔8，导热板4通过定位孔8与内罩2上的定位柱7通过卡扣配合或螺丝固定。安装时，仅需将导热板4的定位孔8对准定位柱7，再通过卡扣或者螺丝即可将两者固定。 Further, said The inner cover 2 is provided with a plurality of positioning posts 7 . The heat conducting plate 4 is correspondingly provided with a plurality of positioning holes 8 , and the heat conducting plate 4 is fixed by a snap fit or a screw through the positioning holes 8 and the positioning posts 7 on the inner cover 2 . When installing, only the positioning hole 8 of the heat conducting plate 4 needs to be aligned with the positioning post 7, and then the two can be fixed by a snap or a screw.

所述 内罩2上设有用于固定电路板3的卡槽9。所述电路板3上设有卡孔10，所述内罩2上设有电路板3装入卡槽9后用于卡住卡孔10的定位扣11。利用此卡槽9的定位结构，能方便将电路板3滑动装进内罩2中，取出时也十分便捷，大大提高装配和返修效率。 Said The inner cover 2 is provided with a card slot 9 for fixing the circuit board 3. The circuit board 3 is provided with a card hole 10, and the inner cover 2 is provided with a positioning buckle 11 for clamping the card hole 10 after the circuit board 3 is inserted into the card slot 9. By using the positioning structure of the card slot 9, the circuit board 3 can be conveniently slid into the inner cover 2, and the removal is also very convenient, thereby greatly improving assembly and rework efficiency.

进一步地，所述 发光组件出光面上设有扩散罩12。所述导热板4上设有用于固定扩散罩12的卡扣结构13。所述灯头组件15通过绝缘环14与导热外罩1连接。 Further, said A diffuser cover 12 is disposed on the light emitting surface of the light emitting component. The heat conducting plate 4 is provided with a snap structure 13 for fixing the diffusion cover 12. The base assembly 15 is coupled to the thermally conductive outer cover 1 via an insulating ring 14.

具体地，所述导热外罩1为铝制或铜制外罩，所述内罩2为塑料内罩。 Specifically, the heat conducting cover 1 is an aluminum or copper outer cover, and the inner cover 2 is a plastic inner cover.

Claims (10)

一种LED灯泡，包括外壳、设于外壳前端的发光组件、设于外壳后端的灯头组件及设于外壳内的电路板，灯头组件通过电路板与发光组件电连接，其特征在于，所述外壳包括导热外罩及套设于导热外罩内的内罩，所述发光组件上设有导热板，导热板与导热外罩相接触，所述发光组件设于内罩前端，电路板设于内罩内部，内罩后端与灯头组件连接。An LED light bulb includes a casing, a light-emitting component disposed at a front end of the casing, a lamp cap assembly disposed at a rear end of the casing, and a circuit board disposed in the casing, the lamp cap assembly being electrically connected to the lighting component through the circuit board, wherein the casing The utility model comprises a heat conducting cover and an inner cover sleeved in the heat conducting cover, wherein the light emitting component is provided with a heat conducting plate, the heat conducting plate is in contact with the heat conducting outer cover, the light emitting component is arranged at the front end of the inner cover, and the circuit board is arranged inside the inner cover. The rear end of the inner cover is connected to the base assembly. 根据权利要求1所述的LED灯泡，其特征在于，所述发光组件包括铝基板及设于铝基板上的LED芯片，所述导热板设于铝基板底部。The LED light bulb according to claim 1, wherein the light emitting component comprises an aluminum substrate and an LED chip disposed on the aluminum substrate, and the heat conducting plate is disposed at the bottom of the aluminum substrate. 根据权利要求2所述的LED灯泡，其特征在于，所述内罩上设有多个定位柱，导热板上对应设有多个定位孔，导热板通过定位孔与内罩上的定位柱通过卡扣配合或螺丝固定。The LED light bulb according to claim 2, wherein the inner cover is provided with a plurality of positioning posts, and the heat conducting plate is correspondingly provided with a plurality of positioning holes, and the heat conducting plate passes through the positioning holes and the positioning posts on the inner cover Snap fit or screw. 根据权利要求1所述的LED灯泡，其特征在于，所述内罩上设有用于固定电路板的卡槽。The LED light bulb according to claim 1, wherein the inner cover is provided with a card slot for fixing the circuit board. 根据权利要求4所述的LED灯泡，其特征在于，所述电路板上设有卡孔，所述内罩上设有电路板装入卡槽后用于卡住卡孔的定位扣。The LED light bulb according to claim 4, wherein the circuit board is provided with a card hole, and the inner cover is provided with a positioning buckle for clamping the card hole after the circuit board is inserted into the card slot. 根据权利要求1所述的LED灯泡，其特征在于，所述发光组件出光面上设有扩散罩。The LED light bulb according to claim 1, wherein a diffusion cover is disposed on the light emitting surface of the light emitting component. 根据权利要求6所述的LED灯泡，其特征在于，所述导热板上设有用于固定扩散罩的卡扣结构。The LED light bulb according to claim 6, wherein the heat conducting plate is provided with a snap structure for fixing the diffusion cover. 根据权利要求1所述的 LED 灯泡，其特征在于，所述灯头组件通过绝缘环与导热外罩连接。The LED light bulb of claim 1 wherein said base assembly is coupled to the thermally conductive outer cover by an insulating ring. 根据权利要求1至8任一项所述的LED灯泡，其特征在于，所述导热外罩为铝制或铜制外罩。The LED light bulb according to any one of claims 1 to 8, wherein the heat conducting outer cover is an aluminum or copper outer cover. 根据权利要求9所述的LED灯泡，其特征在于，所述内罩为塑料内罩。The LED light bulb of claim 9 wherein said inner cover is a plastic inner cover.
PCT/CN2012/074841 2012-04-27 2012-04-27 Led light bulb Ceased WO2013159343A1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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Publication number Priority date Publication date Assignee Title
GB2529036A (en) * 2014-07-22 2016-02-10 Shyh Ming Chen Light-emitting diode bulb
CN112393129A (en) * 2020-12-04 2021-02-23 横店集团得邦照明股份有限公司 Multi-gear color temperature adjusting lamp and implementation method thereof

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