WO2018202222A1 - 一种具有充气止回结构的led灯泡 - Google Patents

一种具有充气止回结构的led灯泡 Download PDF

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Publication number
WO2018202222A1
WO2018202222A1 PCT/CN2018/094482 CN2018094482W WO2018202222A1 WO 2018202222 A1 WO2018202222 A1 WO 2018202222A1 CN 2018094482 W CN2018094482 W CN 2018094482W WO 2018202222 A1 WO2018202222 A1 WO 2018202222A1
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Prior art keywords
check
inflation
led light
light bulb
circuit board
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PCT/CN2018/094482
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English (en)
French (fr)
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苏睿
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惠州市圣士照明有限公司
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Publication of WO2018202222A1 publication Critical patent/WO2018202222A1/zh

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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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • 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
    • F21V31/00—Gas-tight or water-tight arrangements
    • F21V31/005—Sealing arrangements therefor

Definitions

  • the invention relates to the technical field of LED lamps, and in particular to an LED bulb with an inflatable check structure.
  • the gas filling of the LED bulb is divided into two cases, one is to fill the bulb with a negative air pressure, that is, the air pressure in the bulb is less than or equal to the outside air pressure.
  • a negative air pressure that is, the air pressure in the bulb is less than or equal to the outside air pressure.
  • this method has strong selectivity to gases, the air density in the bulb is not high and the thermal conductivity is poor, which affects the heat dissipation performance of the bulb.
  • Another way is to fill the bulb with positive air pressure, ie the air pressure inside the bulb is greater than the outside air pressure.
  • This method has a weak selectivity to gas, and can only be filled with liquid nitrogen in the bulb (ie, the shell is immersed in liquid nitrogen to lower the temperature inside the shell to the liquid nitrogen temperature, and the filling boiling point is higher than or equal to the boiling point of nitrogen.
  • the gas can be liquefied.
  • the gas inlet is sealed, the temperature of the casing returns to normal temperature, the previously filled gas is vaporized to reach a positive pressure, and the liquid nitrogen filling process is complicated and the manufacturing cost is high, which is disadvantageous for the enterprise. Long-term production development.
  • the object of the present invention is to overcome the deficiencies in the prior art and to provide an LED bulb having an inflation check structure, which can perform positive air pressure filling in the bulb and has strong selectivity to gases.
  • An LED light bulb having an inflatable check structure comprising: a lamp cover, a lamp holder and a circuit board, wherein the lamp cover is mounted to cooperate with the lamp holder to form a hollow cavity, and the circuit board is disposed in the lamp cover, the lamp cover One end of the inflatable groove is provided with a check seal block, and one end of the check seal block is disposed in the inflatable groove and abuts against the inner wall of the lamp cover, and the other end is mounted Fixed on the circuit board.
  • the check seal block includes: a check sealing piece, a first fixed end and a second fixed end, wherein the first fixed end and the second fixed end are symmetrically disposed at each other Determining both sides of the sealing piece, the first fixed end is disposed in the inflation groove, the second fixed end is mounted on the circuit board, and the check sealing piece is abutted against the inner wall of the lamp cover Pick up.
  • the check sealing sheet is a circular sealing sheet that is concave toward the first fixed end.
  • the first fixed end is a tapered positioning post.
  • the second fixed end includes a first fixing clip and a second fixing clip, and the first fixing clip and the second fixing clip are fixed on the circuit board. Two sides.
  • the check seal block is a high temperature resistant silicone block.
  • the inflatable groove is a tapered groove.
  • the lampshade is a low temperature glass cover.
  • a plurality of light emitting chips are mounted on the circuit board, and the plurality of light emitting chips are electrically connected to the circuit board.
  • the light emitting chip is covered with a fluorescent silica gel layer.
  • the present invention has the following advantages:
  • the LED bulb with the inflation check structure of the invention has a good non-return sealing function in the inflation process by installing a check seal block between the lamp cover and the circuit board, so that the lamp cover can be filled with the external air pressure.
  • the positive air pressure makes the gas in the lampshade have sufficient density, greatly enhances the heat conduction and heat dissipation performance of the bulb, and is suitable for charging different gases, effectively enhancing the gas selectivity, simplifying the production process and reducing the production cost.
  • FIG. 1 is a structural view of an LED light bulb having an inflation check structure according to an embodiment of the present invention
  • FIG. 2 is a structural view of a check seal block of the LED light bulb having the inflation check structure of FIG. 1.
  • FIG. 3 is a structural view of the circuit board, the conductive metal piece and the conductive metal pins of FIG. 1.
  • FIG. 1 is a structural view of an LED bulb 10 having an inflation check structure according to an embodiment of the present invention.
  • An LED bulb 10 having an inflatable check structure includes a lamp cover 100, a lamp holder 200 and a circuit board 300.
  • the lamp cover 100 and the lamp holder 200 are mounted to form a hollow cavity, and the circuit board 300 is disposed in the lamp cover 100.
  • one end of the lamp cover 100 is provided with an inflation groove 110, and the inflation groove 110 is mounted with a check seal block 400.
  • One end of the check seal block 400 is disposed in the inflation groove 110 and abuts against the inner wall of the lamp cover 100. The other end is mounted and fixed on the circuit board 300.
  • the check seal block 400 includes a check seal 410, a first fixed end 420 and a second fixed end 430.
  • the first fixed end 420 and the second fixed end 430 are symmetrically arranged with each other.
  • the first fixed end 410 is disposed in the inflation groove 110
  • the second fixed end 430 is mounted on the circuit board 300
  • the check sealing piece 410 abuts against the inner wall of the lamp cover 100.
  • the check seal block 400 is a high temperature resistant silicone block.
  • the check seal 410 is a circular seal that is concave toward the first fixed end 410.
  • the first fixed end 420 is a tapered positioning post.
  • the inflatable groove 110 is a tapered groove.
  • the second fixed end 430 includes a first fixing clip 431 and a second fixing clip 432 .
  • the first fixing clip 431 and the second fixing clip 432 are fixed on both sides of the circuit board 300 .
  • the inflation groove 110 on one end of the lamp cover 100 is a through groove structure, and the gas is flushed into the lamp cover 100 from the inflation groove 110.
  • the gas passes through the check seal 410 on the check seal block 400, the gas presses the check seal 410, thereby causing a gap between the check seal 410 and the inner wall of the globe 100 so that gas can escape from the gap. Enter the lampshade 100.
  • the gas in the lamp cover 100 will press the check seal 410 outward, since the check seal 410 is a circular seal that is concave toward the first fixed end 410. And abutting against the inner wall of the lamp cover 100, thereby effectively forming a sealed air leakage preventing structure, ensuring that the charged gas does not leak out from the inflation groove 110, so that there is sufficient time to seal the gas-filled groove 110.
  • the treatment ensures that the air pressure in the lamp cover 100 is greater than the outside air pressure.
  • the first fixed end 420 is a tapered positioning post. On the one hand, it can be conveniently mounted and positioned with the conical groove-shaped inflation groove 110, so that the installation of the check seal block 400 is faster and more efficient. On the other hand, when the inside of the globe 100 is inflated, since the material of the check seal block 400 is soft, the first fixed end 420 may have a gap with the inflation groove 110 due to the air pressure to allow the gas to pass. When the external air pressure is lower than the internal air pressure, the first fixed end 420 is also sucked up by the pressure difference.
  • the lower portion of the taper is larger than the inflation port of the inflating groove 110, so the first fixed end 420 is sucked up and The inflation groove 110 is in close contact to achieve a sealing effect, thereby cooperating with the check seal piece 410 to form a double seal structure.
  • the second fixed end 430 is fixedly mounted on both sides of the circuit board 300 by the first fixing clip 431 and the second fixing clip 432.
  • the clip-like structure formed by the first fixing clip 431 and the second fixing clip 432 can fix the check sealing block 400 on the circuit board 300 so that the air pressure does not seal against the check during the inflation process.
  • the robustness of the block 400 affects, further improving the non-return sealing performance of the check seal block 400.
  • the lamp cover 100 may be made of a low temperature glass cover or a plastic lamp cover.
  • the low temperature glass cover can effectively reduce the melting point of the lamp cover 100, thereby facilitating the sealing process of the lamp cover 100.
  • a plurality of light emitting chips are mounted on the circuit board 300, and the plurality of light emitting chips are electrically connected to the circuit board 300.
  • the light-emitting chip is covered with a fluorescent silica gel layer (not shown).
  • the fluorescent silica gel layer is a mixture of phosphor and silica gel, and different light distribution curves are achieved by setting different shapes of fluorescent silica gel layers on the light-emitting chip.
  • one end of the circuit board 300 is provided with a conductive metal piece 310 and a conductive metal pin 320.
  • One end of the electric metal piece 310 is connected to the circuit board 300 through the conductive wire 330, and the other end is connected to the conductive metal pin 320.
  • the through hole of the conductive metal stitch 320 is mounted on the socket 200. Thereby a complete electrically conductive structure is formed.
  • the present invention has the following advantages:
  • the LED bulb 10 with the inflation check structure of the present invention has a good check seal function by inserting the check seal block 400 between the lamp cover 100 and the circuit board 300, so that the lamp can be in the lamp cover 100.
  • the positive air pressure is greater than the outside air pressure, so that the gas in the lampshade 100 has sufficient density, greatly enhances the heat conduction and heat dissipation performance of the bulb, and is suitable for charging different gases, effectively enhancing the gas selectivity, and simplifying the production process. It also reduces production costs.

Abstract

一种具有充气止回结构的LED灯泡（10），包括：灯罩（100）、灯座（200）与电路板（300），灯罩（100）与灯座（200）安装配合形成中空腔体，电路板（300）设于灯罩（100）内，灯罩（100）的一端开设有充气凹槽（110），充气凹槽（110）上安装有止回密封块（400），止回密封块（400）的一端设于充气凹槽（110）内并与灯罩（100）的内壁抵接，另一端安装固定在电路板（300）上。

Description

一种具有充气止回结构的LED灯泡 技术领域
本发明涉及LED灯技术领域，特别是涉及一种具有充气止回结构的LED灯泡。
背景技术
在现有的LED灯制造工艺中，需要在LED灯泡内进行惰性气体的填充。目前，LED灯泡的气体填充分为两种情况，一种是在灯泡内填充负气压，即灯泡内的气压小于或等于外界气压。这种方式虽然对气体的选择性较强，但是灯泡内空气密度不高、导热性能较差，从而影响灯泡散热性能。另一种方式是在灯泡内填充正气压，即灯泡内的气压大于外界气压。这种方式对气体的选择性较弱，只能在灯泡内进行液氮填充工艺(即将壳体浸泡在液氮中，使壳体内温度降至液氮温度，填充沸点高于或等于氮气沸点的气体时，可使这些气体液化，当将充气口密封后，壳体温度恢复常温，之前填充的气体气化，从而达到正压)，而且液氮填充工艺比较复杂、制造成本高，不利于企业长远的生产发展。
发明内容
本发明的目的是克服现有技术中的不足之处，提供一种具有充气止回结构的LED灯泡，可以在灯泡内进行正气压填充，而且对气体的选择性较强。
本发明的目的是通过以下技术方案来实现的：
一种具有充气止回结构的LED灯泡，包括：灯罩、灯座与电路板，所述灯罩与所述灯座安装配合形成中空腔体，所述电路板设于所述灯罩内，所述灯罩的一端开设有充气凹槽，所述充气凹槽上安装有止回密封块，所述止回密封块的一端设于所述充气凹槽内并与所述灯罩的内壁抵接，另一端安装固定在所述电路板上。
作为本发明一种优选的方案，所述止回密封块包括：止回密封片、第一固 定端与第二固定端，所述第一固定端与所述第二固定端相互对称设置在所述止回密封片的两面，所述第一固定端设于所述充气凹槽内，所述第二固定端安装在所述电路板上，所述止回密封片与所述灯罩的内壁抵接。
作为本发明一种优选的方案，所述止回密封片为凹向所述第一固定端的圆形密封片。
作为本发明一种优选的方案，所述第一固定端为锥型定位柱。
作为本发明一种优选的方案，所述第二固定端包括第一固定夹块与第二固定夹块，所述第一固定夹块与所述第二固定夹块固定在所述电路板的两面。
作为本发明一种优选的方案，所述止回密封块为耐高温硅胶块。
作为本发明一种优选的方案，所述充气凹槽为锥形凹槽。
作为本发明一种优选的方案，所述灯罩为低温玻璃罩。
作为本发明一种优选的方案，所述电路板上安装有多个发光芯片，多个所述发光芯片与所述电路板电连接。
作为本发明一种优选的方案，所述发光芯片上覆盖有荧光硅胶层。
与现有技术相比，本发明具有以下优点：
本发明的具有充气止回结构的LED灯泡通过在灯罩与电路板之间安装止回密封块，使得灯泡在充气工艺中具有很好的止回密封功能，从而可以在灯罩内充入大于外界气压的正气压，使得灯罩内的气体具有足够的密度，大大增强灯泡导热散热的性能，而且适用于不同气体的充入，有效增强气体的选用性，简化了生产工艺的同时也降低了生产成本。
附图说明
图1为本发明一实施例的具有充气止回结构的LED灯泡的结构图；
图2为图1中的具有充气止回结构的LED灯泡的止回密封块的结构图。
图3为图1中的电路板、导电金属片与导电金属针脚的结构图。
具体实施方式
为了便于理解本发明，下面将参照相关附图对本发明进行更全面的描述。 附图中给出了本发明的较佳实施方式。但是，本发明可以以许多不同的形式来实现，并不限于本文所描述的实施方式。相反地，提供这些实施方式的目的是使对本发明的公开内容理解的更加透彻全面。
需要说明的是，当元件被称为“固定于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。
除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是旨在于限制本发明。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
如图1所示，为本发明一实施例的具有充气止回结构的LED灯泡10的结构图。一种具有充气止回结构的LED灯泡10，包括：灯罩100、灯座200与电路板300，灯罩100与灯座200安装配合形成中空腔体，电路板300设于灯罩100内。
进一步的，灯罩100的一端开设有充气凹槽110，充气凹槽110上安装有止回密封块400，止回密封块400的一端设于充气凹槽110内并与灯罩100的内壁抵接，另一端安装固定在电路板300上。
如图2所示，进一步的，止回密封块400包括：止回密封片410、第一固定端420与第二固定端430，第一固定端420与第二固定端430相互对称设置在止回密封片410的两面，第一固定端410设于充气凹槽110内，第二固定端430安装在电路板300上，止回密封片410与灯罩100的内壁抵接。
在本实施例中，止回密封块400为耐高温硅胶块。止回密封片410为凹向第一固定端410的圆形密封片。第一固定端420为锥型定位柱。充气凹槽110为锥形凹槽。
第二固定端430包括第一固定夹块431与第二固定夹块432，第一固定夹块431与第二固定夹块432固定在电路板300的两面。
要说明的是，在进行灯泡充气加工工艺时，灯罩100一端上的充气凹槽110为通槽结构，气体从充气凹槽110冲入灯罩100内。当气体经过止回密封块400上的止回密封片410时，气体会对止回密封片410进行挤压，从而使止回密封片410与灯罩100的内壁出现间隙，使得气体可以从该间隙中进入灯罩100。
当充入的气压大于外界气压且停止充气时，灯罩100内的气体会向外对止回密封片410进行挤压，由于止回密封片410为凹向第一固定端410的圆形密封片且与灯罩100的内壁抵接，从而可以有效形成一个密封防漏气结构，保证充入的气体不会从充气凹槽110出泄漏出去，使得有充分的时间对充气凹槽110进行封泡密封处理，这样就可以确保灯罩100内的气压大于外界气压。
第一固定端420为锥型定位柱，一方面可以方便与锥形凹槽状的充气凹槽110进行安装定位，使得止回密封块400的安装更加快速，效率更高。另一方面，往灯罩100内部充气时，由于止回密封块400材料柔软，第一固定端420会因为气压挤压与充气凹槽110产生间隙，使气体通过。当外部气压小于内部气压时，第一固定端420也会由于压差被吸上去，由于采用锥形结构，锥形下部大于充气凹槽110的充气口，因此吸上去后第一固定端420与充气凹槽110紧密接触，达到密封效果，从而与止回密封片410配合成为双层密封结构。
第二固定端430则通过第一固定夹块431与第二固定夹块432固定安装在电路板300的两面。第一固定夹块431与第二固定夹块432形成的夹片状结构可以将止回密封块400很好的固定在电路板300上，使得在充气加工工艺时，气压不会对止回密封块400的牢固性造成影响，进一步提高止回密封块400的止回密封性能。
在本实施例中，灯罩100为低温玻璃罩或塑料灯罩等材质均可。采用低温玻璃罩可以有效降低灯罩100的熔点，从而有利于灯罩100进行封泡加工。
电路板300上安装有多个发光芯片(图未示)，多个发光芯片与电路板300电连接。发光芯片上覆盖有荧光硅胶层(图未示)。荧光硅胶层为荧光粉与硅胶的混合物，通过在发光芯片上设置不同形状的荧光硅胶层，从而达到不同的配光曲线效果。
如图3所示，电路板300的一端上设有导电金属片310与导电金属针脚320， 电金属片310的一端通过导电金属丝330与电路板300连接，另一端与导电金属针脚320连接，导电金属针脚320的穿设安装于灯座200上。由此形成完整的导电结构。
与现有技术相比，本发明具有以下优点：
本发明的具有充气止回结构的LED灯泡10通过在灯罩100与电路板300之间安装止回密封块400，使得灯泡在充气工艺中具有很好的止回密封功能，从而可以在灯罩100内充入大于外界气压的正气压，使得灯罩100内的气体具有足够的密度，大大增强灯泡导热散热的性能，而且适用于不同气体的充入，有效增强气体的选用性，简化了生产工艺的同时也降低了生产成本。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (10)

  1. 一种具有充气止回结构的LED灯泡，包括：灯罩、灯座与电路板，所述灯罩与所述灯座安装配合形成中空腔体，所述电路板设于所述灯罩内，其特征在于，所述灯罩的一端开设有充气凹槽，所述充气凹槽上安装有止回密封块，所述止回密封块的一端设于所述充气凹槽内并与所述灯罩的内壁抵接，另一端安装固定在所述电路板上。
  2. 根据权利要求1所述的具有充气止回结构的LED灯泡，其特征在于，所述止回密封块包括：止回密封片、第一固定端与第二固定端，所述第一固定端与所述第二固定端相互对称设置在所述止回密封片的两面，所述第一固定端设于所述充气凹槽内，所述第二固定端安装在所述电路板上，所述止回密封片与所述灯罩的内壁抵接。
  3. 根据权利要求2所述的具有充气止回结构的LED灯泡，其特征在于，所述止回密封片为凹向所述第一固定端的圆形密封片。
  4. 根据权利要求2所述的具有充气止回结构的LED灯泡，其特征在于，所述第一固定端为锥型定位柱。
  5. 根据权利要求2所述的具有充气止回结构的LED灯泡，其特征在于，所述第二固定端包括第一固定夹块与第二固定夹块，所述第一固定夹块与所述第二固定夹块固定在所述电路板的两面。
  6. 根据权利要求2所述的具有充气止回结构的LED灯泡，其特征在于，所述止回密封块为耐高温硅胶块。
  7. 根据权利要求1所述的具有充气止回结构的LED灯泡，其特征在于，所述充气凹槽为锥形凹槽。
  8. 根据权利要求1所述的具有充气止回结构的LED灯泡，其特征在于，所述灯罩为低温玻璃罩。
  9. 根据权利要求1所述的具有充气止回结构的LED灯泡，其特征在于，所述电路板上安装有多个发光芯片，多个所述发光芯片与所述电路板电连接。
  10. 根据权利要求9所述的具有充气止回结构的LED灯泡，其特征在于，所述发光芯片上覆盖有荧光硅胶层。
PCT/CN2018/094482 2017-05-05 2018-07-04 一种具有充气止回结构的led灯泡 WO2018202222A1 (zh)

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CN107035980A (zh) * 2017-05-05 2017-08-11 惠州市圣士照明有限公司 一种具有充气止回结构的led灯泡
CN108488674A (zh) * 2018-06-02 2018-09-04 宁波金羽桥照明科技有限公司 一种具有防遮光功能的led落地灯

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CN103836409A (zh) * 2013-11-18 2014-06-04 上海亚浦耳照明电器有限公司 一种led光源及其制备方法
CN205534419U (zh) * 2016-03-22 2016-08-31 惠州市唐群座椅科技股份有限公司 逆止阀
CN107035980A (zh) * 2017-05-05 2017-08-11 惠州市圣士照明有限公司 一种具有充气止回结构的led灯泡

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CN103836409A (zh) * 2013-11-18 2014-06-04 上海亚浦耳照明电器有限公司 一种led光源及其制备方法
CN205534419U (zh) * 2016-03-22 2016-08-31 惠州市唐群座椅科技股份有限公司 逆止阀
CN107035980A (zh) * 2017-05-05 2017-08-11 惠州市圣士照明有限公司 一种具有充气止回结构的led灯泡

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