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CN103542304A - Outward-radiation LED (light emitting diode) lamp - Google Patents

Outward-radiation LED (light emitting diode) lamp Download PDF

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Publication number
CN103542304A
CN103542304A CN 201310528282 CN201310528282A CN103542304A CN 103542304 A CN103542304 A CN 103542304A CN 201310528282 CN201310528282 CN 201310528282 CN 201310528282 A CN201310528282 A CN 201310528282A CN 103542304 A CN103542304 A CN 103542304A
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light
member
face
distribution
lamp
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CN 201310528282
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Chinese (zh)
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CN103542304B (en )
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李甫文
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立达信绿色照明股份有限公司
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Abstract

An outward-radiation LED lamp comprises a lamp base, a bulb housing, an illuminating unit and a light distribution unit. The bulb housing covers the top of the lamp base; the illuminating unit comprises a substrate and an LED light source; the light distribution unit comprises a light distribution member and a heat transfer member thermally connected with the light distribution member, and the heat transfer member is arranged at the top of the lamp base; both the light distribution member and the heat transfer member are made of materials with good heat transfer or radiation capacities, the heat distribution member is made of transparent or semitransparent materials and comprises a mounting face and a light emitting face, and an accommodating slot is formed in the mounting face; the substrate is fixed onto the mounting face and the LED light source on the substrate is accommodated inside the accommodating slot; the illuminating face is thermally connected with the mounting face of the light distribution member; the light emitting face faces towards the bulb housing. The outward-radiation LED lamp has the advantages of timely radiation, light weight and assembling convenience.

Description

外向散热LED灯 LED lamp radiating outward

技术领域 FIELD

[0001] 本发明涉及LED照明领域,特别是一种外向散热LED灯。 [0001] The present invention relates to the field of LED lighting, in particular a LED lamp radiating outward.

背景技术 Background technique

[0002]目前,LED灯已经在照明领域得到广泛的应用,然而LED灯的发热直接影响到LED灯的寿命。 [0002] Currently, the LED has been widely used in the field of lighting, but heat directly affects LED lamp life of LED lights. 现有的LED灯通常采用光源连接金属或陶瓷散热器进行散热,为了提高散热效果往往需要设置体积较大的散热器;同时为实现大角度的发光,通常需将LED光源设置在一个立体柱上。 Conventional LED light source usually connected to a radiator for cooling a metal or ceramic, in order to improve the heat dissipation effect tends to be set large volume radiator; simultaneously achieve large emission angle of the LED light sources need to be disposed generally in a perspective column . 例如授权公告日为2012年10月31日,专利号为201220060615.X的中国实用新型专利即揭示了一种高光效大角度LED灯泡。 For example, authorized announcement of October 31, 2012, Chinese Utility Model Patent No. 201220060615.X, i.e. patent discloses a high-efficiency large-angle LED light bulb. 该高光效大角度LED灯泡包括基壳、灯头、恒流电源、盖板、散热立柱、透光罩,该散热立柱固定于该盖板上方呈立方体,该散热立柱的底面安装于该盖板上,其余面均贴有PCB板,每片PCB板上分布焊有若干个LED芯片。 The high-efficiency large-angle LED light bulb includes a base housing, the base, a constant current source, cover, cooling column, the translucent cover, the heat dissipating post is fixed to the upper cover plate cuboid, the bottom surface of the heat dissipating post is mounted on the cover plate , affixed with the remaining surface of the PCB, the PCB sheet each have a plurality of distributed welding LED chips. 由于该高光效大角度LED灯泡PCB板通过设置散热立柱来散热,这些LED芯片产生的热量仅由相贴的一面传递散发,容易造成散热不及时的现象,降低这些LED芯片的使用寿命,且需要设立较大的散热立柱及PCB板,增加了该高光效大角度LED灯泡的重量及成本。 Since the high-efficiency large-angle LED lamp PCB board by providing the heat dissipating post to heat, heat of the LED chips are generated only by the phase affixed to side transfer distribution, likely to cause the heat dissipation is not timely phenomenon, reduce the life of the LED chips, and need column and the establishment of larger heat PCB board, increases the weight and cost of the high-efficiency large-angle LED bulbs.

发明内容 SUMMARY

[0003] 有鉴于此,有必要提供一种散热及时、轻便的外向散热LED灯。 [0003] In view of this, it is necessary to provide a heat timely, the LED lamp radiating light outward.

[0004] 本发明解决其技术问题所采用的技术方案为:一种外向散热LED灯,包括灯头体、灯泡壳、发光件及配光件,该灯泡壳罩设在该灯头体的顶部,该发光件包括基板及设置在基板上的LED光源,该配光件包括配光部及与配光部热连接的传热部,该传热部设置于该灯头体顶部,该配光部与该传热部均由具有良好导热或散热能力的材料制成,该配光部由透明或半透明材料制成,该配光部包括安装面及出光面,该安装面上设有收容槽,该基板固定在该安装面上且其上的LED光源收容在所述收容槽内,该发光件与该配光件的安装面热连接,该出光面朝向该灯泡壳设置。 [0004] aspect of the present invention to solve the technical problem is: one kind of heat outward LED lamp, comprising a lamp body, the lamp bulb, a light emitting element and the light distribution member provided on the top of the bulb cage of the base body, which a light emitting member comprises a substrate and a LED light source disposed on the substrate, the light distribution member includes a light distribution portion and the heat transfer portion thermally connected with the light portion of the heat transfer portion is provided at the top of the base member, the portion of the light distribution a heat transfer portion made of a material having good thermal conductivity or by dissipation capability, the light distribution portion made of a transparent or translucent material, the light distribution section includes a mounting surface and a surface, the mounting surface provided with receiving grooves, which the surface of the substrate is fixed and which is mounted on the LED light source housed in the housing groove, which is connected to the light emitting element mounting surface of the heat member with light, toward the light emitting surface of the lamp bulb is provided.

[0005] 进一步的,所述收容槽内设有导热材料,所述LED光源发出的热量通过该导热材料传递到该收容槽上,该导热材料为液态或固态的导热胶。 [0005] Further, the storage tank is provided with a thermally conductive material, the heat emitted from the LED light source is transmitted to the receiving groove by the thermally conductive material, the thermally conductive material is a thermally conductive liquid or solid gel.

[0006] 与现有技术相比,该外向散热LED灯设置了配光件,该发光件的LED光源设置在该发光件的基板与该配光件热连接形成的收容槽内,该收容槽内填有导热材料对这些LED光源的外表进行全方位的散热,且将这些LED光源产生热量及时传递到该配光件上,及时将热量散发出去,从而避免热量的堆积;另一部分热量由该基板传递到与其热连接的配光件上,该配光件上的热量由该传热部传递到该灯头体上将热量散到外部空间。 [0006] Compared with the prior art, the LED lamp radiating outward light distribution member is provided, the LED light emitting element disposed in the housing groove of the substrate and the light emitting element is connected with the heat element is formed, the receiving groove filled with a thermally conductive material inside these outer full range of the LED light source heat, and the LED light sources which generate heat promptly transmitted to the light distribution member, the heat dissipated in time, to avoid heat accumulation; another portion of the heat generated by the a light distribution on the substrate transfer member thermally connected thereto, the light distribution on the heat transferred from the heat transfer member to the base body portion on the heat dissipated to the outside space. 这样,由于该外向散热LED灯无需设置较大的散热立柱和PCB板,就能够对这些LED光源产生的热量进行全方位的散热,使得该外向散热LED灯具有散热及时、轻便的优点。 Thus, since the LED light radiating outward without providing larger heat pillar and the PCB, the heat dissipation can be performed on a full range of heat generated by the LED light sources, such that the LED lamp has heat radiating outward timely, lightweight advantages.

附图说明 BRIEF DESCRIPTION

[0007]图1是本发明第一实施例外向散热LED灯的立体分解图;[0008] 图2是图1所示外向散热LED灯组装后的剖面示意图; [0007] FIG. 1 is a perspective exploded view of a first embodiment of an exception to the heat of the LED lamp of the present invention; [0008] FIG. 2 is a cross-sectional schematic view of the LED lamp radiating outward assembly shown in Figure 1;

[0009] 图3是图2所示A部分的局部放大图。 [0009] FIG. 3 is shown in FIG. 2 A is an enlarged portion of FIG.

[0010] 图4是图1所示外向散热LED灯中配光件与发光件组装后沿另一方向的立体示意图。 [0010] FIG. 4 is a perspective schematic view of the LED lamp radiating outward light distribution of the light emitting element is assembled in the other direction is shown in FIG.

[0011] 附图标记说明: [0011] REFERENCE NUMERALS:

[0012] 100 外向散热LED灯10 灯头体 20 灯泡壳 [0012] 100 20 radiating outward lamp bulb LED lamp 10 of the holding body

[0013] 30 配光件 40 发光件 31 配光部 [0013] 30 with the light emitting element 40 light distribution portion 31

[0014] 32 传热部 311 安装面 312 出光面 [0014] 32 surface of the heat transfer portion 311 mounting surface 312

[0015] 313 收容槽 35 导热材料 [0015] The thermally conductive material 313 receiving slot 35

[0016] 41 基板 42 LED 光源 [0016] The substrate 42 LED 41 light source

具体实施方式 detailed description

[0017] 下面结合附图与具体实施方式对本发明作进一步详细描述。 [0017] The present invention will be described in further detail in conjunction with the accompanying drawings specific embodiments.

[0018]图1为本发明第一实施例外向散热LED灯100的立体分解图,该外向散热LED灯100包括灯头体10、灯泡壳20、发光件40及配光件30,该灯泡壳20罩设在该灯头体10的顶部,将该配光件30及该发光件40收容于内。 Exceptions to the exploded perspective view of a heat lamp LED 100, the LED lamp 100 radiating outward body 10 includes a cap, the lamp bulb 20, the light emitting element 40 and light distribution member 30, the lamp bulb 20 of the first embodiment [0018] FIG. 1 of the present invention a top cover provided on the cap body 10, the light-emitting element 30 and light distribution member 40 housed within.

[0019] 请参考图1至图4,该发光件40包括基板41及设置在该基板41上的LED光源42(如图3所示)。 [0019] Please refer to FIG. 1 to FIG. 4, the light emitting member 40 comprises a substrate 41 and a substrate 41 disposed on the LED light source 42 (FIG. 3). 该基板41为环形结构,包括多个LED光源42,这些LED光源42间隔设置在该基板41上且围绕该基板41中心呈环状排列。 The substrate 41 has an annular structure, comprising a plurality of LED light source 42, the LED light source 42 disposed at intervals on the substrate 41 and arranged in a ring around the center of the substrate 41. 该基板41由透明材料制成,且该基板41由导热材料制成。 The substrate 41 made of transparent material, and the substrate 41 is made of thermally conductive material.

[0020] 请参考图1至图3,该配光件30包括配光部31及与该配光部31热连接的传热部32,该传热部32设置于该灯头体10的顶部,用于支撑该配光件30且将该发光件40产生的热量传递到该灯头体10上。 [0020] Please refer to FIG. 1 to FIG. 3, the light distribution member 30 comprises a portion 31 and the light distribution of the light distribution portion 32 and the heat transfer portion 31 thermally connected to the heat transfer portion 32 is provided at the top of the cap body 10, for supporting the light distribution member 30 and transfers the heat generated by the light emitting member 40 to the cap body 10. 该传热部32的一端设有与该配光部31连接的支架,该配光部31为透镜结构,该配光部31由透明或半透明材料制成。 The heat transfer portion 32 is provided at one end is connected to the bracket portion 31 of the light distribution, the light distribution section 31 is a lens structure, the light distribution section 31 is made of transparent or translucent material. 该配光部31为环形结构,该配光部31的横截面为圆心角大于180度的扇形结构(如图3所示),以便对照射到其上的光进行折射,使得更多的光线射向该灯泡壳20的底部。 The light distribution portion 31 has an annular structure, the cross section of the light distribution portion 31 is greater than a central angle of 180 degrees fan structure (FIG. 3), in order to control the light incident thereon is refracted, so that more light toward the bottom 20 of the lamp bulb. 该配光部31与该传热部32均由具有良好导热或散热能力的材料制成。 The light distribution portion 31 formed by the material 32 having a good thermal conductivity or heat dissipation capability of the heat transfer portion. 该配光部31包括安装面311及出光面312 (如图3所示)。 The light distribution portion 311 and the surface 31 comprises a mounting surface 312 (FIG. 3). 该安装面311位于该配光部31的底面,且该配光部31的底面面积大于该发光件40的基板41的面积。 The mounting surface 311 is located in the bottom surface of the light distribution section 31, and the light distribution area of ​​the bottom portion 31 is larger than the area of ​​the substrate 41 of the light emitting element. 该安装面311位于该配光部31朝向该灯头体10的侧边上,该出光面312朝向该灯泡壳20设置。 The mounting surface 311 is located on the side of the cap body 10 toward the light distribution section 31, the light emitting surface 312 faces the lamp bulb 20 is provided. 该配光部31将该发光件40发出的光更多地朝向该灯泡壳20的底部折射,以便照亮该灯泡壳20的底部。 The light 40 emitted from the light distribution portion 31 toward the bottom of the light emitting element more refractive the lamp bulb 20, so as to illuminate the bottom portion 20 of the lamp bulb. 该发光件40与该配光部31的安装面311热连接,该安装面311上设有收容槽313,该基板41固定在该安装面311上,该基板41与该安装面311之间通过导热介质热连接,且其上的LED光源42收容在这些收容槽313内。 The light emitting element 40 is connected to the mounting surface of the heat distribution 311 of the light receiving portion 31, a receiving groove 313 on the mounting surface 311, the substrate 41 is fixed on the mounting surface 311, between the substrate 41 and the mounting surface 311 by thermally conductive medium thermally connected, and the LED light source 42 which is accommodated in the receiving slot 313. 这些收容槽313内设有导热材料35,这些LED光源42发出的热量通过该导热材料35传递到该收容槽313上,该导热材料35为液态或固态的透明或半透明材料。 These slots 313 are equipped with receiving thermally conductive material 35, the heat emitted from the LED light source 42 is transmitted to the receiving slot 313 by the thermally conductive material 35, the thermally conductive material 35 is a liquid or solid transparent or translucent material. 优选为液态材料,因为液体的导热性能极好,能将该LED光源42表面的热量快速传递到该配光部31上。 Preferably a liquid material, since the excellent thermal conductivity of the liquid, can quickly transfer the heat of the LED light source 42 to the surface of the light distribution portion 31. 该配光件30上设有透光散射材料,这些LED光源42发出的光经过散射,使得该LED灯100的发光曲线分布更均匀。 The member 30 is disposed on the light-scattering light-transmissive material, scattering of light through the LED light source 42 is emitted such that the emission curve of the LED lamp 100 more evenly distributed.

[0021] 工作时,这些LED光源42发出的光经该配光部31的发散作用而照亮该灯泡壳20,这些LED光源42产生的一部分热量被该收容槽313内的导热材料35及时传递到该配光部31上,另一部分热量经由与该基板41热连接的安装面311传递到该配光部31上,该配光部31的热量经由与其热连接的传热部32传递到该灯头体10上,从而将热量及时散发到外部空间。 When the [0021] working, the LED light source 42 which emits light by the action of the diverging portion 31 of the light distribution of the lamp bulb 20 to illuminate a portion of the heat generated by the LED light source 42 is a thermally conductive material within the receiving slot timely transmission 31335 to the light distribution section 31, the other part of the heat transferred via the mounting surface 311 thermally connected to the substrate 41 on the light distribution section 31, the heat of the light distribution portion 31 is thermally connected thereto via the heat transfer portion 32 is transferred to the the base body 10, so that the heat is promptly dissipated to the external space.

[0022] 综上所述,该外向散热LED灯100设置了配光件30,该发光件40的LED光源42设置在该发光件40的基板41与该配光件30热连接形成的收容槽313内,该收容槽313内填有导热材料35对这些LED光源42的外表进行全方位的散热,且将这些LED光源42产生热量及时传递到该配光件30上,及时将热量散发出去,从而避免热量的堆积;另一部分热量由该基板41传递到与其热连接的配光件30上,该配光件30上的热量由该配光件30的传热部32传递到该灯头体10上将热量散到外部空间。 [0022] In summary, the LED lamp 100 radiating outward light distribution member 30 provided with the LED light source 40 is a light emitting element disposed on the substrate 42 of the light emitting element 40 and the light 41 is connected to the heat member 30 is formed with the receiving slot the 313, 313 inside the receiving tank filled with a thermally conductive material 35 on the appearance of the LED light source 42 is a full range of heat, and the LED light source 42 generates heat which is transmitted in time to the light distribution member 30, the heat dissipated in time, thus avoiding heat accumulation; another portion of the heat transferred from the substrate 41 to a light distribution member 30 thermally connected thereto, the heat of the light guide 30 is transmitted by the distribution of the light distribution member 30 to the transfer section 32 of the cap 10 It will dissipate heat to the outside space. 这样,由于该外向散热LED灯100无需设置较大的散热立柱和PCB板,就能够对这些LED光源42产生的热量进行全方位的散热,使得该外向散热LED灯100具有散热及时、轻便的优点。 Thus, since the LED lamp 100 radiating outward without providing larger heat pillar and the PCB, the heat dissipation can be performed on a full range of heat generated by the LED light source 42, such that the LED lamp 100 having the outward radiating heat in a timely manner, the advantages of lightweight .

[0023] 由于该安装面312位于该配光部31的底面,且该安装面312的面积大于该基板41的面积,使得该安装面312不会被该基板41遮挡,光线可以从该安装面312射出,照向该灯泡壳20的底部。 [0023] Since the mounting surface 312 is located in the bottom surface of the light distribution section 31, and the area of ​​the mounting surface 312 is larger than the area of ​​the substrate 41, such that the mounting surface 312 will not be blocked by the substrate 41, light from the mounting surface 312 emits, according to the bottom 20 of the lamp bulb. 另外,由于该基板41由透明材料制成,该LED光源42发出的光可以直接穿过该基板41向该灯泡壳20的底部发射。 Further, since the substrate 41 made of transparent material, the light emitted from the LED light source 42 directly pass through the bottom of the substrate 41 to the lamp bulb 20 is emitted. 这些LED光源42发出的光经该配光件30配光部31的发散,照亮该灯泡壳20的顶部、侧壁及底部从而实现大角度发光。 The diverging light is a light distribution member 30 of light distribution portion 31, a top, a bottom and side walls of the lamp bulb 20 is illuminated to achieve a large angle of emission of the LED light source 42 is emitted. 之所以将该配光部31的横截面设置为圆心角大于180度的扇形结构,并将该安装面设置在该配光部31朝向该灯头体10的侧边上,是因为我们发现,LED光源42发出的光线将被更多的朝向透镜比较厚的部位折射。 The reason why the cross section of the light distribution portion 31 is set to be greater than a central angle of 180 degrees of fan-out structure, and the mounting surface is provided on the side of the cap body 10 toward the light distribution section 31, because we have found, LED light emitted from the light source 42 to be more thick toward the lens of the refractive portion. 与现有技术相比,由于无需在散热立柱上设置多个PCB板且在每个PCB板上焊接LED芯片就能实现大角度发光,使得该外向散热LED灯100还具有组装方便的优点。 Compared with the prior art, since no need to provide a plurality of the PCB and soldered on the heat sink post LED chip can emit light in high angle of each PCB board, such that the LED lamp 100 radiating outward convenient assembly further advantages.

[0024] 进一步的,还可以设计不同的该配光件30配光部31的横截面,只要能够对这些LED光源42发出的光进行二次配光,来达到大角度发光的目的。 [0024] Further, may also be designed with different cross section of the optical element 30 is a light distribution section 31, as long as the purpose of the light distribution of secondary light emitted from the LED light source 42, to achieve a large angle of emission.

[0025] 以上这些仅为本发明的较佳实施例而已,并不用以限制本发明,任何本领域人员在不脱离本方案技术范围内,利用上述揭露的技术内容作些许改动的为同等变化的等效实施例。 [0025] These are merely preferred embodiments of the present invention but are not intended to limit the present invention, anyone skilled in the art without departing from the technical scope of the present embodiment, for the same change in the content using the technique disclosed above is intended that changes equally effective embodiments. 但凡脱离本发明技术方案内容,依据本发明技术实质对以上实施例所做的任何修改、等同替换、改进等,均应包含在本发明保护的范围之内。 Whenever departing from the technical content of the present invention, based on the technical essence of the present invention any modifications made to the above embodiment, equivalent replacement, improvement, etc., should be included within the scope of the present invention.

Claims (10)

  1. 1.一种外向散热LED灯,包括灯头体、灯泡壳、发光件及配光件,该灯泡壳罩设在该灯头体的顶部,该发光件包括基板及设置在基板上的LED光源,其特征在于:该配光件包括配光部及与配光部热连接的传热部,该传热部设置于该灯头体顶部,该配光部与该传热部均由具有良好导热或散热能力的材料制成,该配光部由透明或半透明材料制成,该配光部包括安装面及出光面,该安装面上设有收容槽,该基板固定在该安装面上且其上的LED光源收容在所述收容槽内,该发光件与该配光部的安装面热连接,该出光面朝向该灯泡壳设置。 An LED lamp radiating outward, comprising a base body, the lamp bulb, a light emitting element and the light distribution member provided on the top of the bulb cage of the base body, the light emitting element comprises a substrate and a LED light source disposed on the substrate, which characterized in that: the light distribution of the light distribution member includes a connecting portion and a heat transfer portion of the heat distribution of the light, the heat transfer portion is provided at the top of the cap body portion and the light distribution of the heat transfer portion having excellent thermal conductivity or heat dissipation by capability made of a material, the light distribution portion made of a transparent or translucent material, the light distribution section includes a mounting surface and exit surface, a receiving groove of the mounting surface, the mounting surface of the substrate is fixed and on which LED light source received in the receiving groove, the surface heat emission element is connected to the mounting portion of the light distribution, the light emitting surface faces the lamp bulb is provided.
  2. 2.根据权利要求1所述的外向散热LED灯,其特征在于:该基板为环形结构,包括多个LED光源,所述LED光源间隔设置在该基板上且围绕该基板中心呈环状排列。 The outward radiating LED lamp according to claim 1, wherein: the substrate is an annular structure comprising a plurality of LED light source, the LED light source disposed at intervals on the substrate and arranged in a ring around the center of the substrate.
  3. 3.根据权利要求1所述的外向散热LED灯,其特征在于:该基板由透明材料制成。 3. The outward radiating LED lamp according to claim 1, wherein: the substrate is made of a transparent material.
  4. 4.根据权利要求1所述的外向散热LED灯,其特征在于:该配光件上设有透光散射材料。 The outward radiating LED lamp according to claim 1, wherein: on the light scattering material is provided with a light-transmitting member of the formulation.
  5. 5.根据权利要求2所述的外向散热LED灯,其特征在于:该安装面位于该配光部的底面,且该安装面的面积大于该基板的面积。 The outward radiating LED lamp according to claim 2, wherein: the mounting surface is located in the bottom surface portion of the light distribution, and the area of ​​the mounting surface is larger than the area of ​​the substrate.
  6. 6.根据权利要求5所述的外向散热LED灯,其特征在于:该配光部为环形结构,该传热部的一端设有与该配光部连接的支架。 The outward radiating LED lamp according to claim 5, wherein: the light distribution unit has an annular structure, one end of the heat transfer portion is connected to the holder is provided with light distribution portion.
  7. 7.根据权利要求5或6所述的外向散热LED灯,其特征在于:该配光部为透镜结构,该配光部将该发光件发出的光更多地向该灯泡壳底部折射。 The outward radiating LED lamp of claim 5 or claim 6, wherein: the portion of the light distribution lens structure, the light emitting section emitted from the member with the bottom of the lamp bulb to more refraction.
  8. 8.根据权利要求7所述的外向散热LED灯,其特征在于:该配光部的横截面为圆心角大于180度的扇形结构,该安装面位于该配光部朝向该灯头体的侧边上。 The outward radiating LED lamp according to claim 7, characterized in that: a cross section of the light distribution portion is greater than a central angle of 180 degrees fan structure, the mounting surface of the light distribution portion is located toward the sides of the base body on.
  9. 9.根据权利要求7所述的外向散热LED灯,其特征在于:所述收容槽内设有导热材料,所述LED光源发出的热量通过该导热材料传递到该收容槽上,该导热材料为液态或固态的透明或半透明材料。 9. The LED lamp radiating outward to claim 7, wherein: said storage tank is provided with a thermally conductive material, said LED light source of heat transmitted to the receiving groove by the thermally conductive material, the thermally conductive material is liquid or solid of transparent or translucent material.
  10. 10.根据权利要求1至6中任一项所述的外向散热LED灯,其特征在于:该基板由导热材料制成,该基板与该安装面之间通过导热介质热连接。 10.1-6 outward radiating LED lamp as claimed in any of the preceding claims, characterized in that: the substrate is made of thermally conductive material, the connection between the substrate and the mounting surface of the heat transfer medium by heat.
CN 201310528282 2013-10-29 2013-10-29 Outbound heat led lights CN103542304B (en)

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