WO2014089930A1 - 具有非隔离电源的led球泡灯 - Google Patents

具有非隔离电源的led球泡灯 Download PDF

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Publication number
WO2014089930A1
WO2014089930A1 PCT/CN2013/071425 CN2013071425W WO2014089930A1 WO 2014089930 A1 WO2014089930 A1 WO 2014089930A1 CN 2013071425 W CN2013071425 W CN 2013071425W WO 2014089930 A1 WO2014089930 A1 WO 2014089930A1
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Prior art keywords
isolated power
power supply
lamp
led
bakelite pcb
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PCT/CN2013/071425
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English (en)
French (fr)
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林培林
李艳潮
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Lin Peilin
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Publication of WO2014089930A1 publication Critical patent/WO2014089930A1/zh

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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
    • 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
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • 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 relates to an LED lamp, in particular to an LED bulb with non-isolated power source.
  • the purpose of the present invention is to overcome the deficiencies of the prior art and to provide an LED bulb having a non-isolated power source.
  • An LED bulb having a non-isolated power source comprising a non-isolated power source, and an LED lamp bead electrically connected to the non-isolated power source, wherein the LED lamp bead is fixed on the bakelite PCB board, the bakelite One side of the PCB board is provided with a printed circuit for electrically connecting the LED lamp bead to the non-isolated power source; the other side of the bakelite PCB board is soldered to the heat sink provided, and the bakelite PCB board and the heat sink A solder paste layer is disposed between the bodies; the heat dissipating body is a lamp shell, and the lamp shell is a cylindrical structure, and a spherical lamp cover is disposed at a front end thereof.
  • a further technical solution is that the rear end of the lamp housing is provided with a cylindrical cavity for accommodating a non-isolated power supply; and the inner wall of the cylindrical cavity is further coupled with a lamp cap coupling.
  • a further technical solution is that the outer end of the base coupling is provided with a lamp cap, and the other end is provided with a plurality of coupling pieces for coupling with the lamp housing; the coupling piece is attached to the inner wall of the cylindrical cavity.
  • the non-isolated power supply comprises a rectification filter circuit and a buck circuit, wherein the buck circuit is an inductor buck circuit or a resistor buck circuit; and the input end of the non-isolated power source is an alternating current .
  • the utility model has the beneficial effects compared with the prior art that the LED bulb of the utility model uses the solder paste layer to directly solder the bakelite PCB board on the heat dissipating body, thereby directly discharging the heat dissipation effect and reducing the structure of the LED lamp.
  • the volume because the bakelite PCB board has insulation, can use non-isolated power supply, compared with other metal PCB board LED lights, due to the use of non-isolated power supply, reducing the heat source.
  • the power supply is integrated with the heat sink or the housing (this compact LED lamp has two heat sinks, one is the LED lamp bead and the other is the power supply part), compared with the LED lamp with isolated power supply.
  • the LED lamp of the utility model has higher power, and after optimization design, the power can be increased by 50-80%, the luminous efficiency is increased by 20-50%, and the luminous flux is increased by 80-200%;
  • the bakelite PCB board uses the solder layer to play the role of soldering and fixing, avoiding the use of the screw hole to fix the bakelite PCB board, which causes the bakelite PCB board to be susceptible to cracks and the like.
  • the utility model Compared with the LED lamps in the prior art, the utility model has the advantages of faster heat dissipation and longer service life, and the product volume can be further miniaturized, which is convenient for the user to install, reduces the production cost, and effectively enhances the competitiveness. .
  • the cost is lower due to the non-isolated power supply structure.
  • FIG. 1 is a perspective exploded view of a specific embodiment of an LED bulb having a non-isolated power supply according to the present invention
  • FIG. 2 is a block diagram showing the circuit of the embodiment shown in FIG. 1.
  • the LED bulb of the present invention has a non-isolated power supply, comprising a non-isolated power supply S1, and an LED lamp bead S2 electrically connected to the non-isolated power supply S1.
  • the LED lamp bead S2 is fixed on the bakelite PCB board S3, and one side of the bakelite PCB board S3 is provided with a printed circuit S4 for electrically connecting the LED lamp bead S2 with the non-isolated power source S1; the other side of the bakelite PCB board S3 is The heat sink is welded and connected, the heat sink is the lamp shell S5, the solder paste layer S6 is arranged between the bakelite PCB board S3 and the lamp shell S5; the lamp shell S5 has a cylindrical structure, and the front end is provided with a spherical lampshade S9.
  • the rear end is provided with a cylindrical cavity S51 for accommodating the non-isolated power supply; the inner wall of the cylindrical cavity S51 is further coupled with a base coupling S7, the outer end of the base coupling S7 is provided with a lamp cap S8, and the other end is provided with a lamp housing S5 A plurality of coupling pieces S71 are coupled; the coupling piece S71 is attached to the inner wall of the cylindrical cavity S51.
  • the gusset S71 therein is provided with a boss portion S711 that functions as a mounting coupling and a rib S712 for preventing rotation.
  • a concave cavity S50 for accommodating the bakelite PCB board and a reflective cup S52 (which functions as a collecting light) located around the concave cavity S50 are provided at the front end of the lamp housing S5.
  • the non-isolated power supply S1 includes a rectifying and filtering circuit S11 and a step-down circuit S12, and the step-down circuit S12 is an inductive step-down circuit or a resistor step-down circuit; the input end of the non-isolated power source (ie, the lamp head S8) inputs alternating current.
  • the lamp head can be screwed into a screw hole in a commonly used lamp or lamp holder to directly use the mains network to replace the existing lamp product.
  • the LED bulb of the present invention uses a solder paste layer to directly solder the bakelite PCB board to the heat sink, thereby directly reducing the heat dissipation effect, and at the same time reducing the volume of the LED lamp structure, since the bakelite PCB board has Insulation, so that non-isolated power supply can be used.
  • the use of non-isolated power supply reduces the heat dissipation source.
  • the LED lamp of the utility model has higher power, and after optimization design, the power can be increased by 50-80%, the luminous efficiency is increased by 20-50%, and the luminous flux is increased by 80-200%;
  • the bakelite PCB board uses the solder layer to play the role of soldering and fixing, avoiding the use of the screw hole to fix the bakelite PCB board, which causes the bakelite PCB board to be susceptible to cracks and the like.
  • the utility model Compared with the LED lamps in the prior art, the utility model has the advantages of faster heat dissipation and longer service life, and the product volume can be further miniaturized, which is convenient for the user to install, reduces the production cost, and effectively enhances the competitiveness. .
  • the cost is lower due to the non-isolated power supply structure.

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

Abstract

一种具有非隔离电源的LED球泡灯，包括非隔离式电源（S1），及与非隔离式电源电性联接的LED灯珠（S2），LED灯珠固定于电木PCB板（S3）上，电木PCB板的一面设有用于电性联接LED灯珠与非隔离式电源的印刷电路（S4）；电木PCB板的另一面与设有的散热体（S5）焊接式联接，电木PCB板与散热体之间设有焊锡膏层（S6）；散热体为灯壳，灯壳为圆柱形结构，其前端设有球形灯罩（S9）。球泡灯具有直接的散热效果，同时减少了LED灯的结构体积，由于电木PCB板具有绝缘作用，可以采用非隔离电源，减少了散热源。与同等散热器体积的传统LED灯相比，其功率可以提高50-80%，光效可以提高20-50%，光通量可以提高80-200%。

Description

具有非隔离电源的LED球泡灯
　　　技术领域
　　　本实用新型涉及一种LED灯具，更具体地说是指一种具有非隔离电源的LED球泡灯。
　　
　　　背景技术
　　　现有技术中，在LED灯具行业，其散热是一项技术难题。目前，大部分的LED灯具采用的是金属PCB板作为LED灯珠的载体，由于金属PCB板是导电材料，当金属PCB板与灯具的外壳之间未采用绝缘层或其它绝缘结构时，LED灯具的电源输入端需要采用具有变压器的隔离电源结构，由于具有变压器的隔离电源结构，发热量大，当LED灯具采用整体结构时，隔离电源常被容置于灯壳内，与散热器成一个整体或设置得很近；由此，隔离电源成了LED灯具的另一个热源；这给原本就需要解决散热问题的LED灯具，带来新的技术难题。
　　　因此，有必要开发出一种新的LED灯具结构。
　　　
　　　实用新型内容
　　　本实用新型的目的在于克服现有技术的缺陷，提供一种具有非隔离电源的LED球泡灯。
　　　为实现上述目的，本实用新型采用以下技术方案：
　　　一种具有非隔离电源的LED球泡灯，包括非隔离式电源，及与非隔离式电源电性联接的LED灯珠，所述的LED灯珠固定于电木PCB板上，所述电木PCB板的一面设有用于电性联接LED灯珠与非隔离式电源的印刷电路；所述电木PCB板的另一面与设有的散热体焊接式联接，所述的电木PCB板与散热体之间设有焊锡膏层；所述的散热体为灯壳，所述的灯壳为圆柱形结构，其前端设有球形灯罩。
　　　其进一步技术方案为：所述灯壳的后端设有用于容置非隔离式电源的圆柱腔；所述圆柱腔内壁上还联接有灯头联接件。
　　　其进一步技术方案为：所述的灯头联接件外端设有灯头，另一端设有用于与灯壳联接的若干个联接片；所述联接片贴附于圆柱腔内壁。
　　　其进一步技术方案为：所述的非隔离式电源包括整流滤波电路和降压电路，所述的降压电路为电感降压电路或电阻降压电路；所述非隔离式电源的输入端为交流电。
　　　本实用新型与现有技术相比的有益效果是：本实用新型LED球泡灯利用焊锡膏层将电木PCB板直接焊在散热体上，起到直接的散热效果，同时减少了LED灯具结构的体积，由于电木PCB板具有绝缘作用，从而可以采用非隔离电源，相对于其它金属PCB板的LED灯，由于采用了非隔离电源，减少了散热源。在电源与散热体或壳体成一体式设计时（此种结构紧凑的LED灯具有二个散热源，一个是LED灯珠，另一个是电源部分），与采用隔离电源的LED灯相比，采用相同体积和重量的材料，本实用新型的LED灯的功率更大，经过优化设计之后，其功率可以提高50-80%,光效提高20-50%，光通量提高80-200%；其效果主要是因为非隔离电源的发热量小，以及电木PCB板采用直接焊在散热体上的结构。其中，电木PCB板利用焊锡层起到焊接固定的作用，避免利用钻螺丝孔的方式进行电木PCB板的固定而引起电木PCB板易产生裂纹等缺陷。本实用新型与现有技术中的LED灯具相比，由于散热更快，使用寿命更长，产品的体积可以更加地小型化，既便于用户的安装，又降低了生产成本，有力地提升竞争力。由于采用非隔离电源结构，成本更低。
　　　下面结合附图和具体实施例对本实用新型作进一步描述。
　　　
　　　附图说明
　　　图1为本实用新型具有非隔离电源的LED球泡灯具体实施例的立体爆炸图；
　　　图2为图1所示实施例的电路方框示意图。
　　　附图说明
　　　S1 非隔离式电源 S2 LED灯珠
　　　S3 电木PCB板 S4 印刷电路
　　　S5 灯壳 S51 圆柱腔
　　　S6 焊锡膏层 S9 球形灯罩
　　　S7 灯头联接件 S71 联接片
　　　S8 灯头 S52 反光杯
　　　S11 整流滤波电路 S12 降压电路
　　　
　　　具体实施方式
　　　为了更充分理解本实用新型的技术内容，下面结合具体实施例对本实用新型的技术方案进一步介绍和说明，但不局限于此。
　　　如图1至图2所示，本实用新型具有非隔离电源的LED球泡灯，包括非隔离式电源S1，及与非隔离式电源S1电性联接的LED灯珠S2， LED灯珠S2固定于电木PCB板S3上，电木PCB板S3的一面设有用于电性联接LED灯珠S2与非隔离式电源S1的印刷电路S4；电木PCB板S3的另一面与设有的散热体焊接式联接，散热体为灯壳S5，电木PCB板S3与灯壳S5之间设有焊锡膏层S6；灯壳S5为圆柱形结构，其前端设有球形灯罩S9，其后端设有用于容置非隔离式电源的圆柱腔S51；圆柱腔S51内壁上还联接有灯头联接件S7，灯头联接件S7外端设有灯头S8，另一端设有用于与灯壳S5联接的若干个联接片S71；联接片S71贴附于圆柱腔S51的内壁。其中的联接片S71设有起到安装联接作用的凸起部S711和用于防止转动的凸条S712。在灯壳S5的前端设有用于容置电木PCB板的凹腔S50，以及位于凹腔S50四周的反光杯S52（起集光的作用）。其中，非隔离式电源S1包括整流滤波电路S11和降压电路S12，降压电路S12为电感降压电路或电阻降压电路；非隔离式电源的输入端（即灯头S8）输入的是交流电。灯头可以旋入常用的灯具或灯座内的螺孔内，直接利用市电网络，以替换现有的灯具产品。
　　　综上所述，本实用新型LED球泡灯利用焊锡膏层将电木PCB板直接焊在散热体上，起到直接的散热效果，同时减少了LED灯具结构的体积，由于电木PCB板具有绝缘作用，从而可以采用非隔离电源，相对于其它金属PCB板的LED灯，由于采用了非隔离电源，减少了散热源。在电源与散热体或壳体成一体式设计时（此种结构紧凑的LED灯具有二个散热源，一个是LED灯珠，另一个是电源部分），与采用隔离电源的LED灯相比，采用相同体积和重量的材料，本实用新型的LED灯的功率更大，经过优化设计之后，其功率可以提高50-80%,光效提高20-50%，光通量提高80-200%；其效果主要是因为非隔离电源的发热量小，以及电木PCB板采用直接焊在散热体上的结构。其中，电木PCB板利用焊锡层起到焊接固定的作用，避免利用钻螺丝孔的方式进行电木PCB板的固定而引起电木PCB板易产生裂纹等缺陷。本实用新型与现有技术中的LED灯具相比，由于散热更快，使用寿命更长，产品的体积可以更加地小型化，既便于用户的安装，又降低了生产成本，有力地提升竞争力。由于采用非隔离电源结构，成本更低。
　　　上述仅以实施例来进一步说明本实用新型的技术内容，以便于读者更容易理解，但不代表本实用新型的实施方式仅限于此，任何依本实用新型所做的技术延伸或再创造，均受本实用新型的保护。本实用新型的保护范围以权利要求书为准。

Claims (4)

  1. 一种具有非隔离电源的LED球泡灯，其特征在于包括非隔离式电源，及与非隔离式电源电性联接的LED灯珠，所述的LED灯珠固定于电木PCB板上，所述电木PCB板的一面设有用于电性联接LED灯珠与非隔离式电源的印刷电路；所述电木PCB板的另一面与设有的散热体焊接式联接，所述的电木PCB板与散热体之间设有焊锡膏层；所述的散热体为灯壳，所述的灯壳为圆柱形结构，其前端设有球形灯罩。
  2. 根据权利要求1所述的具有非隔离电源的LED球泡灯，其特征在于所述灯壳的后端设有用于容置非隔离式电源的圆柱腔；所述圆柱腔内壁上还联接有灯头联接件。
  3. 根据权利要求2所述的具有非隔离电源的LED球泡灯，其特征在于所述的灯头联接件外端设有灯头，另一端设有用于与灯壳联接的若干个联接片；所述联接片贴附于圆柱腔内壁。
  4. 根据权利要求1所述的具有非隔离电源的LED球泡灯，其特征在于所述的非隔离式电源包括整流滤波电路和降压电路，所述的降压电路为电感降压电路或电阻降压电路；所述非隔离式电源的输入端为交流电。
PCT/CN2013/071425 2012-12-13 2013-02-06 具有非隔离电源的led球泡灯 WO2014089930A1 (zh)

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CN103032847B (zh) * 2012-12-13 2014-09-10 林培林 具有非隔离式电源的led照明装置和led灯

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