CN201170533Y - 散热性能良好的大功率led灯具 - Google Patents
散热性能良好的大功率led灯具 Download PDFInfo
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- CN201170533Y CN201170533Y CNU2008200927421U CN200820092742U CN201170533Y CN 201170533 Y CN201170533 Y CN 201170533Y CN U2008200927421 U CNU2008200927421 U CN U2008200927421U CN 200820092742 U CN200820092742 U CN 200820092742U CN 201170533 Y CN201170533 Y CN 201170533Y
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- lamp
- small
- copper post
- substrate
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- 239000006185 dispersions Substances 0.000 title claims description 14
- 230000002349 favourable Effects 0.000 title 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910052802 copper Inorganic materials 0.000 claims abstract description 31
- 239000010949 copper Substances 0.000 claims abstract description 31
- 229910052751 metals Inorganic materials 0.000 claims abstract description 24
- 239000002184 metals Substances 0.000 claims abstract description 24
- 239000003292 glue Substances 0.000 claims abstract description 11
- 239000000741 silica gel Substances 0.000 claims abstract description 11
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound 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O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound 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[Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 240000006028 Sambucus nigra Species 0.000 claims abstract description 5
- 239000000758 substrates Substances 0.000 claims description 41
- 239000004411 aluminium Substances 0.000 claims description 5
- 239000007787 solids Substances 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 4
- 239000011257 shell materials Substances 0.000 claims 1
- 239000000463 materials Substances 0.000 abstract 1
- 235000012431 wafers Nutrition 0.000 description 20
- 238000010586 diagrams Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000005516 engineering processes Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000000034 methods Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Classifications
-
- 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
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
-
- 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
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/02—Globes; Bowls; Cover glasses characterised by the shape
-
- 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]
Abstract
本实用新型公开了一种散热性能良好的大功率LED灯具，旨在改善其散热性能并可设计为大功率的灯具。它包括外圆四周带有多个翼片的、中心设有纵向通孔的灯杯，以及灯罩、灯座和灯头；其中灯杯是用铝材直接挤压成型的，并且其顶面的中心设有一个扁圆柱形的凹窝；金属基板为扁圆柱形，其外径等于或略大于上述凹窝的内径，其厚度等于凹窝的深度，它被冲压固定在该凹窝之中；该金属基板上还设置有至少一个与板面垂直的小通孔；铜柱的外径等于或略大于上述小通孔的直径，其高度等于基板的厚度，它被冲压固定在该小通孔之中；LED晶片固晶在铜柱的顶面上，荧光胶及硅胶覆盖在LED晶片之上。
Description
散热性能良好的大功率LED灯具技术领域本实用新型涉及一种灯具，特别是一种LED灯具。 背景技术现有的LED灯具的结构如图3—5所示，包括外圓四周带有多 个翼片的、中心设有纵向通孔的灯杯52以及环形的灯罩62、灯座 92和灯头102，灯杯52中固定有一个金属基板42，基板42上固 定有至少 一个LED成品光源32， LED成品光源32上固定有一个LED 晶片22, LED晶片22的上面覆盖有荧光胶及硅胶12，金属基板 42下方的空腔中设置有驱动电路板（图中未示出）。另外，在LED 成品光源22的上方还设置有一个透镜112。这种灯具存在的缺陷 是：1、其中的灯杯52是用铝材压铸成型的，因受铸造工艺的限 制，其翼片不可能铸得很薄、很密，所以散热性能不佳。2、其LED 晶片22直接焊在铜柱32上，铜柱32再焊在金属基板42上，金 属基板42用螺钉固定在灯杯52中的平面上。这种结构使LED晶 片22通电后产生的热量传导给翼片散热的传导介质多，传导性能 就差。正因为它的散热性能欠佳，表面温度高，所以该灯具的功 率不能设计的很大，从而限制了该灯具功率的进一步提高。发明内容本实用新型的目的是克服上述现有技术的不足，提供一种散 热性能良好的、光源衰减低、功率可以大大提高的LED灯具。采用以下的技术方案就可以实现上述的目的：本方案的LED 灯具包括外圓四周带有多个翼片的、中心设有纵向通孔的灯杯以 及配套灯罩、灯座和灯头，灯杯中沖压固定有一个金属基板，金 属基板上冲压固定有至少一个铜柱，铜柱上固晶至少一个LED晶 片，LED晶片的上面覆盖有荧光胶及硅胶，基板下方的空腔中设置 有驱动电路板，其特征是：所说的灯杯是用铝材直接挤压成型的，并且其顶面的中心设有一个扁圓柱形的凹窝；所说的金属基板为扁圆柱形，其外径等于或略大于上述凹窝 的内径，其厚度等于凹窝的深度，它被冲压固定在该凹窝之中； 该基板上还设置有至少一个与板面垂直的小通孔；所说的铜柱的外径等于或略大于上述小通孔的直径，其高度 等于基板的厚度，它被沖压固定在该小通孔之中；所说的LED晶 片固晶在铜柱的顶面上。进一步地，上面所说的金属基板上设置的小通孔设计为 一个， 该小通孔位于基板的中心；所说的铜柱、LED晶片也分别是一个。更进一步地，上面所说的金属基板上设置的小通孔设计为多 个，并且这些小通孔以基板的垂直中心线为中心对称的分布；所 说的铜柱、LED晶片的个数与小通孔的数目至少一个。根据上面灯具的结构可以看出，本实用新型的优点是：1、 由于灯杯是用铝材直接挤压成型的，所以其翼片可以制作 得很薄、很密，大大增加了散热性能；2、 由于LED晶片直接固晶在铜柱上，铜柱又直接冲压在金属 基板中，金属基板也直接冲压在灯杯的凹窝中，因此LED晶片通 电后产生的热量传导给翼片散热的传导性能极佳；3、 正因为本灯具具备以上的结构优点，所以它可以为设计、 制造更大功率的LED灯具提供更大的发展空间。为了使本实用新型更加清晰和便于理解，下面通过附图和实 施例对其作进一步iJt明。附图说明图1是本实用新型实施例1的结构剖视示意图。图2是上述实施例的外形示意图。图3是现有技术的灯具之结构剖视示意图。图4是图3的灯具的外形示意图。图5是图3的俯视示意图。图6是本实用新型实施例2的结构剖视示意图。图7是图6的俯视示意图。图8是图6中的灯杯的立体示意图。图9是本实用新型实施例3的结构剖视示意图。图1 0是图9的结构立体示意图。具体实施方式实施例1，参看图1、图2。本实施例的灯具与现有技术一样， 包括外园四周带有多个翼片511的、中心设有纵向通孔512的灯 杯51以及灯罩71、灯座91和灯头101,灯杯51中固定有一个金 属基板41，基板41上固定有一个铜柱31,铜柱31上固定有一个 LED晶片21, LED晶片21的上面覆盖有荧光胶及硅胶11,基板41 下方的空腔512中设置有驱动电路板（图中未示出），其改进之处 是：灯杯51是用铝材直接挤压成型的，并且其顶面A的中心设有 一个圆柱形的凹窝；金属基板41为圆柱形，其外径等于或略大于 上述凹窝的内径，其厚度等于凹窝的深度，它被冲压固定在该凹 窝之中；该基板41的中心上还设置有一个与板面垂直的小通孔； 铜柱31的外径等于或略大于上述小通孔的直径，其高度高于或等 于基板的厚度，它被冲压固定在该小通孔之中。在每个铜柱31上固定有多个LED晶片21，在这些LED晶片 21的上面再覆盖荧光胶及硅胶11也是可以的。实施例2。本实施例与实施例1的区别仅在于金属基板41上 设置的小通孔是多个，并且这些小通孔以基板41的垂直中心线为 中心对称的分布；所说的铜柱31、 LED晶片21的个数与小通孔的 数目至少一个。例如，如图5所示可以在金属基板41上设置7个 小通孔，这7个小通孔以基板41的垂直中心线0为中心对称的分 布为一个4每花形，在每个小通孔中，沖压入一个铜柱31;至少一 个LED晶片21分别固晶在每个铜柱31的顶面上，每个LED晶片 21上用荧光胶及硅胶覆盖。实施例3，再参看图1、图2。本实施例是在上述实施例1和2的基础上将灯罩71设计为半球形的壳体，它与灯杯51的扣合处 分别设有一圈止口，还有一个横截面为"L，，形的环形支架61将 灯罩71和灯杯51连接在一起，设置支架61的目的是可以活动的 连接灯罩71和灯杯51，方便装配和拆卸灯罩71。实施例4。本实施例是在实施例3的基础上，在灯罩71内、 灯杯51之上平面A上还设置有一个反光片81,该反光片81的反 光面为锥形或凹球形，这在功率不变的情况下可以进一步增加光 照的亮度。实施例5,参看图6—图8。本实施例与实施例2的区别仅在 于装在基板43上的每组铜柱33、 LED晶片23、荧光胶及硅胶13 的上面还分别设置有一个透镜113;所说的灯罩73为圆形的平板， 该灯罩73装在灯杯53顶面上设置的圆柱形凹窝中；所说的灯杯 53外表面为圆柱面，当然，外表面的形状设计为其它形状也是可 以的。实施例6，参看图9、图10。本实施例与实施例2的区别^义在 于装在基板44上的全部铜柱34、 LED晶片24、荧光胶及硅胶14 的上面设置有一个大透镜或连体透镜114。
Claims (8)
1、一种散热性能良好的大功率LED灯具，包括外圆四周带有多个翼片的、中心设有纵向通孔的灯杯以及灯罩、灯座和灯头，灯杯中固定有一个金属基板，基板上固定有至少一个铜柱，铜柱上固定有至少一个LED晶片，LED晶片的上面覆盖有荧光胶及硅胶，基板下方的空腔中设置有驱动电路板，其特征是： 所说的灯杯是用铝材直接挤压成型的，并且其顶面的中心设有一个扁圆柱形的凹窝； 所说的金属基板为圆柱形，其外径等于或略大于上述凹窝的内径，其厚度等于凹窝的深度，它被冲压固定在该凹窝之中；该基板上还设置有至少一个与板面垂直的小通孔； 所说的铜柱的外径等于或略大于上述小通孔的直径，其高度等于基板的厚度，它被冲压固定在该小通孔之中；所说的LED晶片固晶在铜柱的顶面上。
2、 根据权利要求1所述的散热性能良好的大功率LED灯具， 其特征是所说的金属基板上设置的小通孔是一个，该小通孔位于 基板的中心；所说的铜柱、LED晶片也分别是一个。
3、 根据权利要求1所述的散热性能良好的大功率LED灯具， 其特征是所说的金属基板上设置的小通孔是一个，该小通孔位于 基板的中心；所说的铜柱是一个，LED晶片是多个。
4、 根据权利要求l一3其中之一所述的散热性能良好的大功 率LED灯具，其特征是所说的金属基板上设置的小通孔是多个， 并且这些小通孔以基板的垂直中心线为中心对称的分布；所说的 铜柱的个数与小通孔的数目相同。
5、 根据权利要求4所述的散热性能良好的大功率LED灯具， 其特征是所说的灯罩为半球形壳体，它与灯杯扣合处分别设有一 圈止口，还有一个横截面为"L'，形的环形支架将灯罩和灯杯连接 在一起。
6、 根据权利要求5所述的散热性能良好的大功率LED灯具， 其特征是在灯罩内、灯杯上平面上还设置有一个反光片，该反光片的反光面为锥形或凹球形。
7、 根据权利要求4所述的散热性能良好的大功率LED灯具， 其特征是在所说的每组铜柱、LED晶片、荧光胶及硅胶的上面还分 别设置有一个透镜；所说的灯罩为圆形的平板，该灯罩装在灯杯 顶面上设置的圓柱形凹窝中。
8、 根据权利要求4所述的散热性能良好的大功率LED灯具， 其特征是在所说的全部铜柱、LED晶片、荧光胶及硅胶的上面设置 有一个大透镜或连体透4竟。
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101893180A (zh) * | 2010-08-17 | 2010-11-24 | 史杰 | 一种led灯泡 |
| CN102367928A (zh) * | 2011-04-13 | 2012-03-07 | 浙江德胜新能源科技股份有限公司 | 一种快速散热led庭院灯 |
| CN102588783A (zh) * | 2009-02-04 | 2012-07-18 | 松下电器产业株式会社 | 灯泡形灯以及照明装置 |
| WO2012144657A1 (en) * | 2011-04-22 | 2012-10-26 | Yazaki Corporation | LED Lighting Unit |
| WO2012149820A1 (zh) * | 2011-05-05 | 2012-11-08 | 广东德豪润达电气股份有限公司 | 一种led灯泡 |
| CN104676292A (zh) * | 2013-11-26 | 2015-06-03 | 苏州承源光电科技有限公司 | 一种带有散热器的led灯 |
| CN104728685A (zh) * | 2015-03-03 | 2015-06-24 | 善研光电科技（上海）有限公司 | 带透镜的筒灯 |
| CN104913248A (zh) * | 2015-07-02 | 2015-09-16 | 都江堰光明光电材料有限责任公司 | 一种灯具 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102588783A (zh) * | 2009-02-04 | 2012-07-18 | 松下电器产业株式会社 | 灯泡形灯以及照明装置 |
| CN102588783B (zh) * | 2009-02-04 | 2015-11-18 | 松下电器产业株式会社 | 灯泡形灯以及照明装置 |
| CN101893180A (zh) * | 2010-08-17 | 2010-11-24 | 史杰 | 一种led灯泡 |
| CN101893180B (zh) * | 2010-08-17 | 2012-08-01 | 史杰 | 一种led灯泡 |
| CN102367928A (zh) * | 2011-04-13 | 2012-03-07 | 浙江德胜新能源科技股份有限公司 | 一种快速散热led庭院灯 |
| CN102367928B (zh) * | 2011-04-13 | 2013-08-14 | 浙江德胜新能源科技股份有限公司 | 一种快速散热led庭院灯 |
| WO2012144657A1 (en) * | 2011-04-22 | 2012-10-26 | Yazaki Corporation | LED Lighting Unit |
| WO2012149820A1 (zh) * | 2011-05-05 | 2012-11-08 | 广东德豪润达电气股份有限公司 | 一种led灯泡 |
| CN104676292A (zh) * | 2013-11-26 | 2015-06-03 | 苏州承源光电科技有限公司 | 一种带有散热器的led灯 |
| CN104728685A (zh) * | 2015-03-03 | 2015-06-24 | 善研光电科技（上海）有限公司 | 带透镜的筒灯 |
| CN104913248A (zh) * | 2015-07-02 | 2015-09-16 | 都江堰光明光电材料有限责任公司 | 一种灯具 |
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