WO2018103209A1 - 一种高效散热的色轮 - Google Patents

一种高效散热的色轮 Download PDF

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Publication number
WO2018103209A1
WO2018103209A1 PCT/CN2017/075608 CN2017075608W WO2018103209A1 WO 2018103209 A1 WO2018103209 A1 WO 2018103209A1 CN 2017075608 W CN2017075608 W CN 2017075608W WO 2018103209 A1 WO2018103209 A1 WO 2018103209A1
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WIPO (PCT)
Prior art keywords
substrate
working ring
color wheel
heat dissipation
working
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PCT/CN2017/075608
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English (en)
French (fr)
Inventor
高志强
杨伟樑
杨承德
陈程
宁曼莹
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广景视睿科技（深圳）有限公司
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Publication of WO2018103209A1 publication Critical patent/WO2018103209A1/zh

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2006—Lamp housings characterised by the light source
    • G03B21/2033—LED or laser light sources
    • G03B21/204—LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/16—Cooling; Preventing overheating

Definitions

  • the invention relates to the field of heat dissipation technology, in particular to a color wheel for efficient heat dissipation.
  • the color wheel is generally applied to an illumination device or a projection device as an optical beam splitting unit, and is driven by the driving unit to rotate, so that different color regions on the color wheel correspond to light emitted by the light source to generate light of a corresponding color to achieve splitting. Effect.
  • the excitation light source excites the phosphor and generates heat, so that the temperature of the color wheel increases, the energy of the excitation light source increases, and the temperature generated by the color wheel is higher, and the excessive temperature causes the color wheel to fail to work normally.
  • the energy of the excitation light source will increase. Therefore, how to control the temperature of the color wheel to make it run normally under the premise of high brightness is the key to the light source technology.
  • the object of the present invention is to provide an efficient heat dissipation structure for the double-sided excitation color wheel.
  • the technical solution of the present invention includes: a color wheel for efficiently dissipating heat, comprising: a first substrate, a second substrate and a rotating shaft; The first substrate is placed in parallel with the second substrate and connected by the rotating shaft; the first substrate comprises a first working ring, and the first working ring is located on the first substrate away from the One side of the second substrate; the second substrate includes a second working ring, and the second working ring is located on a side of the second substrate away from the first substrate.
  • the rotating shaft includes a driving shaft and a driven shaft
  • the first substrate is fixed on the driving shaft
  • the first substrate and the second substrate are connected through the driven shaft. Synchronous rotation is achieved and there is a gap between the two substrates.
  • the color wheel comprises a nano heat dissipation coating layer covering a region other than the first working ring and the second working ring.
  • the area other than the first working ring and the second working ring is formed into a fan or a concave-convex shape.
  • the present invention also provides a color wheel for efficiently dissipating heat, comprising: a first substrate, a second substrate, a rotating shaft and an intermediate material; the first substrate is placed in parallel with the second substrate, and passes through An intermediate material connection; the first substrate includes a first working ring, the first working ring is located on a side of the first substrate away from the second substrate; and the second substrate includes a second work a ring, the second working ring being located on a side of the second substrate that is away from the first substrate.
  • the intermediate material may be a pasting fixing material or a heat insulating material.
  • the first working ring and the second working ring combine to distribute a fluorescent region, a light transmitting region and a filter region.
  • the invention has the beneficial effects that the double-sided excitation color wheel is separated on two substrates, and the nano-heat-dissipating paint or the filling heat-insulating material is used to increase the radiation heat dissipation area and accelerate the heat generated by the excitation of the fluorescent region, thereby making the color wheel always Maintain normal work.
  • FIG. 1 is a side view of a highly efficient heat dissipating color wheel according to Embodiment 1 of the present invention
  • FIG. 2 is a front elevational view of the efficient heat dissipation color wheel of Embodiment 1 of the present invention
  • Figure 3 is a side elevational view of the efficient heat dissipating color wheel of Embodiment 2 of the present invention.
  • FIG. 1 is a side view of the high efficiency heat dissipating color wheel of the present embodiment
  • FIG. 2 is a front view of the high efficiency heat dissipating color wheel of the present embodiment.
  • An efficient heat-dissipating color wheel that separates the double-sided excitation color wheel in two On the substrate, the two substrates are connected to the fixed rotating shaft via a gap. Thereby, the heat which has been conventionally carried by a double-sided excitation color wheel can be dispersed to the two substrates, and the heat generated by the excitation of the fluorescent region can be accelerated, so that the color wheel can always maintain normal operation.
  • the rotating shaft includes a driving shaft 100 and a driven shaft 101.
  • the two substrates are a first substrate 200 and a second substrate 201, and a nano heat-dissipating paint layer 300 is provided at portions other than the working areas of the two substrates.
  • the heat dissipation structure of the present invention is not limited to the provision of the nano heat-dissipating paint layer, and the portions other than the working areas of the two substrates may be formed into a fan or a concave-convex shape, and the heat is dissipated by the rotation of the color wheel.
  • the first substrate 200 further includes a first working ring 400
  • the second substrate 201 includes a second working ring 401.
  • the first working ring and the second working ring can simultaneously or in combination distribute the fluorescent region, the light transmitting region and the filter.
  • the zone can have more than one torus, and can be multiple torus according to requirements.
  • the first substrate 200 is placed in parallel with the second substrate 201, the driving shaft 100 is fixed to the first substrate 200, the driven shaft 101 is connected to the first substrate 200 and the second substrate 201, and the driving shaft 100 is driven.
  • the shaft 101 rotates synchronously, and there is a gap between the first substrate 200 and the second substrate 201.
  • the first working ring 400 is located on a side of the first substrate 200 away from the second substrate 201, and the second working ring 401 is located in the second
  • the substrate 201 is away from one side of the first substrate 200, that is, the first working ring 400 and the second working ring 401 are respectively located on opposite sides of the opposing faces of the first substrate 200 and the second substrate 201.
  • the nano heat dissipation coating layer 300 is mainly plated at positions other than the first working ring 400 and the second working ring 401, that is, applied to the first substrate 200, the second substrate 201, the driving shaft 100, and the driven shaft 101.
  • the first working ring 400 and the second working ring 401 have a light transmitting region or a transmissive fluorescent region, the light transmitting region and the front and rear of the transmissive fluorescent region are not coated with the nano heat dissipating paint.
  • the nano heat dissipating coating is preferably a nano heat dissipating coating having a thermal radiation of more than 80%, such as an IR coating such as graphene, diamond-like carbon or nano-carbon powder, and the thickness of the nano-heat-dissipating coating layer is preferably 2-90 ⁇ m.
  • the high efficiency heat dissipating color wheel comprises a driving shaft 102, a first substrate 202, a second substrate 203 and an intermediate material 103, wherein the first substrate 202 and the first substrate The two substrates 203 are placed in parallel, the driving shaft 102 is fixed together with the first substrate 202, and the intermediate material 103 is located between the first substrate 202 and the second substrate 203 without voids; wherein the first substrate 202 and the first substrate
  • the second substrate 203 has the same first working ring and second working ring as the first embodiment. The distribution of the first working ring and the second working ring is the same as that described in the first embodiment, and the description is not repeated here.
  • the intermediate material 103 may be a pasting fixing material or a heat insulating material, and there is no intermediate material 103 in the range of the first working ring and the second working ring, wherein the adhesive fixing material may be an inorganic/inorganic glue, and the heat insulating material may be heat conductive.
  • the first substrate and the second substrate of the above two embodiments may each be an aluminum plate, a copper heat sink or a sapphire transmission substrate.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Optics & Photonics (AREA)
  • Projection Apparatus (AREA)
  • Optical Filters (AREA)

Abstract

一种高效散热的色轮包括：第一基片（200）、第二基片（201）和转轴；第一基片（200）与第二基片（201）平行放置，并通过转轴相连；第一基片（200）包括第一工作环（400），第一工作环（400）位于第一基片（200）上远离第二基片（201）的一面；第二基片（201）包括第二工作环（401），第二工作环（401）位于第二基片（201）上远离第一基片（200）的一面。这种将双面激发色轮分开在两片基板上，通过在非工作区和主动轴（100）或/和从动轴（101）镀纳米散热涂料或填充隔热材料来增大辐射散热面积，加快荧光区激发产生的热量的散发，从而使色轮始终维持正常工作。

Description

一种高效散热的色轮 技术领域
本发明涉及散热技术领域，特别是一种高效散热的色轮。
背景技术
色轮一般是应用在照射装置或投影装置以作为光学分光单元，由驱动单元的驱动进行转动，以使色轮上的不同颜色区域对应光源所发出的光进而产生对应的颜色的光来达到分光的效果。然而由于激发光源激发荧光粉的同时会产生热，从而使色轮的温度升高，激发光源的能量越大，色轮产生的温度越高，过高的温度会使色轮无法正常工作，随着人们对亮度要求的提高，激发光源的能量就会越大，因此，如何能在高亮度的前提下，控制色轮的温度，使其正常运行，是光源技术的关键所在。
发明内容
本发明的目的在于，为双面激发色轮提供一种高效散热结构，为此本发明的技术方案包括：一种高效散热的色轮，包括：第一基片、第二基片和转轴；所述第一基片与所述第二基片平行放置，并通过所述转轴相连；所述第一基片包括第一工作环，所述第一工作环位于所述第一基片上远离所述第二基片的一面；所述第二基片包括第二工作环，所述第二工作环位于所述第二基片上远离所述第一基片的一面。
优选地，所述转轴包括主动轴和从动轴，所述第一基片固定在所述主动轴上，所述第一基片与所述第二基片通过所述从动轴连接，来达到同步转动，且两基片之间有间隙。
优选地，所述色轮包括纳米散热涂料层，所述纳米散热涂层覆盖除所述第一工作环和所述第二工作环以外的区域。
优选地，所述第一工作环和所述第二工作环以外的区域被做成风扇或凹凸状。
另外，本发明还提供一种高效散热的色轮，包括：第一基片、第二基片、转轴和中间材料；所述第一基片与所述第二基片平行放置，并通过所述中间材料连接；所述第一基片包括第一工作环，所述第一工作环位于所述第一基片上远离所述第二基片的一面；所述第二基片包括第二工作环，所述第二工作环位于所述第二基片上远离所述第一基片的一面。
优选地，所述中间材料可以为粘贴固定材料或隔热材料。
优选地，所述第一工作环和所述第二工作环组合分布荧光区、透光区和滤光区。
本发明的有益效果：将双面激发色轮分开在两片基板上，通过镀纳米散热涂料或填充隔热材料来，增大辐射散热面积，加快荧光区激发产生的热量，从而使色轮始终维持正常工作。
附图说明
图1为本发明实施例1的高效散热色轮的侧视图；
图2为本发明实施例1的高效散热色轮的正视图；
图3为本发明实施例2的高效散热色轮的侧视图。
具体实施方式
实施例1
图1所示为本实施例的高效散热色轮的侧视图，图2所示为本实施例的高效散热色轮的正视图。一种高效散热色轮，将双面激发色轮分开在两 个基片上，使两个基片隔着间隙而在连接固定转轴上。由此，能够将以往由一个双面激发色轮承担的热量分散到两个基片，加快荧光区激发产生的热量的散发，从而使色轮始终维持正常工作。另外，转轴包括主动轴100和从动轴101，两个基片为第一基片200和第二基片201，在两个基片的工作区以外的部分设有纳米散热涂料层300。此外，本发明的散热结构并不限于设置纳米散热涂料层，也可以将两个基片的工作区以外的部分做成风扇或凹凸状等，利用色轮的转动来散热。其中第一基片200还包括第一工作环400，第二基片201包括第二工作环401，第一工作环与第二工作环上可同时或组合分布荧光区、透光区和滤光区且可以不止有一个环面，可根据需求为多个环面。
第一基片200与第二基片201平行放置，主动轴100与第一基片200固定在一起，从动轴101连接第一基片200和第二基片201，主动轴100与从动轴101同步转动，且第一基片200和第二基片201之间有间隙，第一工作环400位于第一基片200远离第二基片201的一面，第二工作环401位于第二基片201远离第一基片200的一面，即第一工作环400和第二工作环401分别位于第一基片200与第二基片201的对置面的相反面。纳米散热涂料层300主要镀于除第一工作环400和第二工作环401以外的位置，即可涂抹于第一基片200、第二基片201、主动轴100和从动轴101上，其中如第一工作环400和第二工作环401有透光区或透射式荧光区，则透光区和透射式荧光区的前后面均不涂纳米散热涂料。纳米散热涂料优选热辐射大于80％的纳米散热涂料，如：石墨烯、类钻碳或纳米碳粉等IR涂料，且纳米散热涂料层的厚度在2-90微米为最佳。通过在色轮的非工作区上涂抹纳米散热涂料，能够进一步加快荧光区激发产生的热量的散发，从而使色轮始终维持正常工作。
实施例2
图3为本实施例的高效散热色轮的侧视图，一种高效散热色轮包括主动轴102、第一基片202、第二基片203和中间材料103，其中第一基片202与第二基片203平行放置，主动轴102与第一基片202固定在一起，中间材料103位于第一基片202与第二基片203之间，且无空隙；其中第一基片202和第二基片203上与实施例1相同分别有第一工作环和第二工作环，其中第一工作环与第二工作环的分布与作用于实施例1中描述相同，在此不重复说明。
中间材料103可以为粘贴固定材料，也可为隔热材料，且第一工作环和第二工作环范围内没有中间材料103，其中粘贴固定材料可以为有/无机胶水，隔热材料可以为导热系数高的材料，如焊锡。
以上两种实施例的第一基片和第二基片均可以采用铝板、铜质散热板或蓝宝石透射基板。

Claims (7)

  1. 一种高效散热的色轮，包括：第一基片、第二基片和转轴；
    所述第一基片与所述第二基片平行放置，并通过所述转轴相连；
    所述第一基片包括第一工作环，所述第一工作环位于所述第一基片上远离所述第二基片的一面；
    所述第二基片包括第二工作环，所述第二工作环位于所述第二基片上远离所述第一基片的一面。
  2. 根据权利要求1所述的高效散热的色轮，其特征在于，所述转轴包括主动轴和从动轴，所述第一基片固定在所述主动轴上，所述第一基片与所述第二基片通过所述从动轴连接，来达到同步转动，且两基片之间有间隙。
  3. 根据权利要求2所述的高效散热的色轮，其特征在于，所述色轮包括纳米散热涂料层，所述纳米散热涂层覆盖除所述第一工作环和所述第二工作环以外的区域。
  4. 根据权利要求2所述的高效散热的色轮，其特征在于，所述第一工作环和所述第二工作环以外的区域被做成风扇或凹凸状。
  5. 一种高效散热的色轮，包括：第一基片、第二基片、转轴和中间材料；所述第一基片与所述第二基片平行放置，并通过所述中间材料连接；所述第一基片包括第一工作环，所述第一工作环位于所述第一基片上远离所述第二基片的一面；所述第二基片包括第二工作环，所述第二工作环位于所述第二基片上远离所述第一基片的一面。
  6. 根据权利要求5所述的高效散热的色轮，其特征在于，所述中间材料为粘贴固定材料或隔热材料。
  7. 根据权利要求1－6的任一项所述的高效散热的色轮，其特征在于，所述第一工作环和所述第二工作环组合分布荧光区、透光区和滤光区。
PCT/CN2017/075608 2016-12-06 2017-03-03 一种高效散热的色轮 WO2018103209A1 (zh)

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CN110632813A (zh) * 2019-10-31 2019-12-31 珠海市大晟云视传媒科技有限公司 一种荧光轮散热结构
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