WO2017008689A1 - 一种色轮散热装置 - Google Patents

一种色轮散热装置 Download PDF

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Publication number
WO2017008689A1
WO2017008689A1 PCT/CN2016/089314 CN2016089314W WO2017008689A1 WO 2017008689 A1 WO2017008689 A1 WO 2017008689A1 CN 2016089314 W CN2016089314 W CN 2016089314W WO 2017008689 A1 WO2017008689 A1 WO 2017008689A1
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WO
WIPO (PCT)
Prior art keywords
color wheel
motor
side wall
heat
path opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2016/089314
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English (en)
French (fr)
Inventor
李武
林伟
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Shenzhen Appotronics Corp Ltd
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Appotronics Corp Ltd
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Publication date
Application filed by Appotronics Corp Ltd filed Critical Appotronics Corp Ltd
Publication of WO2017008689A1 publication Critical patent/WO2017008689A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/40—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity
    • F21V9/45—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity by adjustment of photoluminescent elements
    • 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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • 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 utility model relates to a color wheel heat dissipation device for optical projection.
  • the wavelength converting material on the color wheel converts the excitation light into a laser light, and part of the energy of the excitation light is converted into heat and absorbed by the color wheel, thereby causing the phosphor As the temperature increases, the conversion efficiency decreases.
  • the technical problem to be solved by the utility model is to provide a color wheel heat dissipating device according to the above defects of the prior art.
  • a color wheel heat sink comprising:
  • first sidewall and a second sidewall disposed opposite to each other, the first sidewall is provided with a first optical path opening, and the second sidewall is provided with a second optical path opening, and
  • the first side wall and / Or the inner side of the second side wall has convex heat dissipating teeth;
  • the color wheel is disposed in the housing, and the color wheel is located between the first optical path opening and the second optical path opening;
  • heat dissipating teeth extend from the inner side of the first side wall and/or the second side wall toward the color wheel.
  • a further improvement of the color wheel heat sink further includes a motor for driving the rotation of the color wheel and a blade for generating a flowing airflow, the motor being mounted in the housing, the color wheel and the blade being mounted on the motor Above, and both are driven by the motor and rotate around the center of rotation of the motor rotor.
  • the heat dissipating teeth are plural, and the direction in which the heat dissipating teeth protrude from the inner side of the casing is parallel to the rotation center line of the rotor of the motor.
  • a fixed disk is also mounted, the fixed disk is mounted on the motor and rotated by the motor, and the color wheel and the blade are disposed on the fixed disk.
  • the fixing plate comprises a sleeve and a disc body connected to the sleeve, the fixing disc is sleeved on the motor through a sleeve, and the color wheel is fixed on the disc body,
  • the fan blade is disposed on the sleeve of the fixed disc and / Or on the plate.
  • the disk body is provided with a plurality of vents.
  • a blade is disposed between each adjacent two vents.
  • the blades are disposed directly on the color wheel.
  • the heat dissipating teeth have a conical or truncated cone shape.
  • the housing is provided with external heat dissipating teeth for heat dissipation of the housing.
  • the color wheel heat dissipation device proposed by the utility model has a shell The first sidewall and the second sidewall are oppositely disposed, the first sidewall is provided with a first optical path opening, the second sidewall is provided with a second optical path opening, and the first sidewall and/or the second sidewall
  • the inner side has heat-dissipating teeth arranged in a convex shape.
  • the color wheel is blocked between the first optical path opening and the second optical path opening.
  • the heat dissipating teeth extend from the inner side of the first side wall and/or the second side wall toward the color wheel direction, and the space between the color wheel and the two opposite side walls can be fully utilized.
  • the heat dissipating teeth are in direct contact with the airflow, which can increase the contact surface between the casing and the airflow, thereby improving the heat exchange efficiency between the casing and the airflow, and dissipating heat in the casing more quickly.
  • FIG. 1 is an exploded view of an embodiment of a color wheel heat sink of the present invention
  • Figure 2 is a schematic view showing the inner structure of the bottom case of the structure shown in Figure 1;
  • Figure 3 is a schematic view showing the structure of the fixed disk in the structure shown in Figure 1.
  • the first embodiment provides a color wheel heat dissipation device.
  • the color wheel heat sink includes a housing and a color wheel.
  • the housing is a closed structure having a receiving cavity. And a first sidewall and a second sidewall disposed opposite to each other, the first sidewall is provided with a first optical path opening, and the second sidewall is provided with a second optical path opening, the first optical path opening and the second
  • the optical path switch can communicate with the accommodating cavity to form an optical path.
  • the color wheel is fixedly disposed in the accommodating cavity, and the color wheel is blocked between the first optical path opening and the second optical path opening. Passing light through the color wheel after entering the housing from the first optical path opening or the second optical path opening.
  • the conversion of the wavelength converting material converts the excitation light into a received laser light, which is emitted from the second optical path opening or the first optical path opening.
  • the color wheel is well cooled and has heat sinking teeth.
  • the heat dissipating teeth extend from the inner side of the first side wall and/or the second side wall toward the color wheel.
  • the color wheel heat sink is a flat structure in which The first side wall and the second side wall area of the first optical path opening and the second optical path opening may be relatively large, so that more heat dissipating teeth may be disposed on the two side walls.
  • the heat dissipating teeth are in direct contact with the airflow, which can increase the contact surface of the casing and the airflow, thereby improving the heat exchange efficiency between the casing and the airflow, and dissipating heat in the casing more quickly.
  • the second embodiment provides a color wheel heat dissipation device.
  • the color wheel heat sink includes a housing, a motor 3, a color wheel 4, and a fixed plate 5.
  • the housing includes a bottom case 1 and a cover plate 2, and the bottom case 1 and the cover plate 2 are engaged with each other.
  • Bottom case 1 and cover 2 A sealing ring is provided at the joint to ensure a good seal between the bottom case 1 and the cover plate 2.
  • the side wall 12 is provided with a first optical path opening 13 and the other side wall 21 is provided with a second optical path opening 22.
  • the housing forms a sealed receiving cavity.
  • the first optical path opening 13 and the second optical path switch 22 can communicate with the accommodating cavity to form an optical path.
  • the motor 3 Mounted in the housing this not only includes the motor 3 being directly fixedly mounted on the bottom case 1 or the cover plate 2, but also including the motor 3 being fixed by a structure such as a bracket fixedly coupled to the housing.
  • the color wheel 4 is disposed in the casing at a position corresponding to the opening of the optical path, and is driven to rotate by the motor 3.
  • the corresponding optical path opening referred to herein means that the color wheel 4 is blocked between the first optical path opening 13 and the second optical path opening 22, and the light source entering from the first optical path opening 13 or the second optical path opening 22 can be illuminated.
  • the color wheel 4 is provided with a wavelength converting material which converts the light source irradiated onto the color wheel 4 from the excitation light into a laser light, and the laser light is emitted from the second optical path opening 22 or the first optical path opening 13. .
  • the color wheel 4 is mounted on the motor 3 via the fixed disk 5.
  • the fixed disk 5 includes a sleeve 51 and a disc body 52 connected to the sleeve 51.
  • the fixing disc 5 is fitted on the outer wall of the rotor of the motor 3 through the sleeve 51.
  • the color wheel 4 is fixed on the disc body 52, for example, the backlight surface of the color wheel 4
  • the side is fixed to the disk body 52 (the surface on the color wheel 4 that is illuminated by the light source is the light receiving surface, and the side opposite to the light receiving surface on the color wheel 4 is the backlight surface), so that the color wheel 4 rotates together with the rotor of the motor 3.
  • the center of the color wheel 4 and the disk 52 is provided with a hole through which the motor 3 is placed.
  • the structure of the fixed disk 5 is not limited to the embodiment.
  • the structure of only one sleeve 51 may be used to directly fix the color wheel 4 to the sleeve 51.
  • the color wheel 4 can also be directly fixed to the motor 3 instead of being interlocked with the motor 3 by the fixed disk 5.
  • the color wheel 4 is directly fixed to the motor 3, and the color wheel 4 is disposed as a firmware on the fixed plate 5, so that the color wheel 4 is not required. Add any unnecessary devices to reduce the production cost of the color wheel 4. Moreover, if the color wheel 4 is damaged, only the color wheel 4 can be replaced, thereby saving costs.
  • At least one set of blades may be disposed for this purpose, and the fan blades are disposed in the casing around the rotation center line of the motor rotor, and are also driven by the motor to rotate to form a fan-like structure.
  • the housing then dissipates heat outward.
  • the blade is disposed on the disk 52 of the fixed disk 5 in this embodiment.
  • a plurality of blades 53 are disposed on the surface of the disk 52, and the plurality of blades 53 integrally surround the disk 52.
  • the rotation center line i.e., the rotation center line of the motor rotor
  • each of the blades 53 extends in the radial direction of the disk body 52, respectively.
  • a plurality of vents 54 for example, the plurality of vents 54 are designed to be annularly disposed integrally around the center line of rotation of the disk body 52, each of the vents 54 having a circular arc shape, wherein each of the circular vents 54 surrounds The disk body 52 is rotated by a center line for extension.
  • the vent 54 can communicate the space on the side of the backlight surface of the color wheel 4 with the space on the side of the light receiving surface (the space on both sides is communicated through the space between the color wheel 4 and the inner side of the casing), which is more advantageous for the fan.
  • the leaf 53 rotates, the back surface of the color wheel 4 and the space gas on both sides of the light receiving surface flow through the color wheel 4, thereby improving the heat exchange efficiency between the air and the color wheel.
  • the vent 54 and the blade 53 better fit, the airflow is better entered into the air inlet of the fan blade 53.
  • a blade 53 is disposed between each adjacent two vents 54.
  • the vent 54 can be removed from the disk 52 without affecting the operation of the color wheel 4.
  • the rotation center line extends radially outward, and the vent 54 is oblong or rectangular, such that the plurality of vents 54 are radially distributed around the center line of rotation of the disk 52.
  • this embodiment only shows one embodiment in which the blade 53 is disposed on the disk 52, but in other embodiments, the blade 53 It may also be separately disposed on the sleeve 51.
  • a plurality of blades are disposed on the outer side surface of the sleeve 51, and the blades are radially radially outwardly distributed from the center of the sleeve 51, and the blades and the fixed plate 5
  • the center line of rotation is at an angle such that it forms a fan that rotates coaxially with the fixed disk 5.
  • the length of the blade can extend out of the fixed plate 5
  • the edge is specifically subject to no contact with the housing and other components. With such a structural design, the length of the blade and the sweeping radius can be increased to make the air flow around the color wheel 4 flow faster.
  • the blade 53 may be disposed on the sleeve 51 and the disk 52 at the same time.
  • the blade 53 is not necessarily provided on the fixed disk 5, and in other embodiments, the blade 53 may be independent of the fixed disk 5 And color wheel 4, connected separately to motor 3.
  • the blade 53 is mounted to the blade sleeve or other mount by a blade sleeve or other mount that is fixedly coupled to the rotor of the motor 3.
  • the blade 53 can also be placed directly on the color wheel 4, for example, on the color wheel 4
  • a plurality of blades are fixedly disposed on the backlight surface, and the blades rotate together with the color wheel 4.
  • convex heat dissipating teeth are provided on the inner side of the casing.
  • the heat dissipating tooth can increase the contact area of the casing with the air, greatly increasing the heat exchange rate between the casing and the internal air, so that the temperature of the air around the color wheel 4 is lowered more rapidly, and the color wheel 4 has a better cooling effect. .
  • the heat dissipating teeth may be disposed on the inner side of the bottom case 1 and/or the cover plate 2. Specifically, the heat dissipating teeth may be from the side wall 12 or the side wall 21 The inner side of the protrusion extends toward the color wheel.
  • the extension to the color wheel direction includes not only the extending direction of the heat dissipating teeth but also the rotation center line of the motor rotor, and the extending direction of the heat dissipating teeth and The center line of rotation of the motor rotor has an acute angle structure.
  • the heat dissipating teeth extend toward the air outlet direction of the fan blade 53. Extending the fan blade 53 in the direction of the air outlet allows more surfaces on the heat dissipating teeth to come into contact with the flowing gas formed by the fan blades 53.
  • this embodiment does not affect the motor 3, the color wheel 4, and the fixed disk 5
  • the heat dissipating teeth 11 are disposed on the inner side of the side wall 12, and the heat dissipating teeth 11 It protrudes from the inner side of the casing and extends toward the color wheel 4 along the rotation center line of the rotor of the motor 3.
  • the heat dissipating teeth 11 and the fan blades 53 are located on the same side of the color wheel 4, and the air blowing direction of the fan blades 53 faces the heat dissipating teeth 11.
  • the heat dissipating tooth 11 Since the airflow formed by the blade 53 flows along the rotation center line of the rotor of the motor 3, if the heat dissipating tooth 11 is disposed in the vertical direction of the rotation center line of the rotor, it corresponds to the direction in which the heat dissipating tooth 11 traverses the flow direction of the flowing gas. First, the side of the heat dissipating tooth 11 facing the flowing airflow is more in contact with the airflow, and the side facing away from the flowing airflow is less in contact with the airflow, and the second is that the radiating tooth 11 near the fan blade 53 is far away.
  • the heat dissipating teeth 11 at the position of the blade 53 form a barrier, so that the flowing gas does not come into good contact with the heat dissipating teeth 11 away from the position of the blade 53, and in fact, the heat dissipating effect of all the dissipating teeth 11 is not exerted.
  • the example structure adopts the heat dissipating teeth 11 to face the air outlet direction of the fan blade 53, so that the above two problems can be avoided, and the heat dissipating teeth 11 can better contact the airflow to dissipate heat.
  • the color wheel device is generally a flat structure, the area of the other side walls is much smaller than the area of the side wall 12 and the side wall 21, so that the former is more expensive to manufacture and produce, and more heat dissipating teeth 11 cannot be arranged, thereby causing The effective surface area of the heat dissipating teeth 11 is reduced.
  • the shape of the heat dissipating teeth 11 can be flexibly selected, such as a columnar shape, a plate shape, a undulating surface, and the like.
  • the exemplary structure of the embodiment adopts a conical or truncated cone structure.
  • the end portion of the heat dissipating tooth 11 has a small end and a large root portion. Therefore, when the airflow contacts the heat dissipating tooth 11, the end surface can be extended along the end surface to the root portion to make the heat dissipating tooth. 11 Fully contact with the air stream.
  • external heat dissipating teeth for heat dissipation or other common heat dissipating structures may be further provided outside the casing to enhance heat dissipation efficiency of the casing and the outside.
  • the color wheel heat dissipating device provided by the present application has a fan blade 53 added to the fixing plate 5
  • the air flow velocity and range inside the color wheel cavity are greatly increased, the convection heat transfer coefficient is increased, and the heat dissipation tooth is added inside the casing.
  • the surface area with which it is in contact is also greatly increased, and the heat exchange efficiency is improved. Therefore, the work of the color wheel 4 is to generate the heat faster, and the operating temperature of the color wheel 4 is lowered, so that the color wheel 4
  • the working efficiency and the service life of the upper phosphor are increased, so that the operating temperature of the motor 3 is lowered and the life is increased.
  • the blade 53 is provided as a firmware on the fixed disk 5, so that it is not necessary to be on the color wheel 4 Any unnecessary equipment is added to reduce the production cost of the color wheel 4, and the material and production resources caused by the other auxiliary heat dissipating devices on the color wheel 4 are not wasted when the color wheel 4 is replaced, and the color can be enhanced.
  • Wheel 4 The heat dissipation effect of the device can reduce the production difficulty of the device and greatly reduce the production cost.

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  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Projection Apparatus (AREA)

Abstract

一种色轮（4）散热装置，其壳体具有相对设置的第一侧壁（12）和第二侧壁（21），第一侧壁（12）上设有第一光路开口（13），第二侧壁（21）上设有第二光路开口（22），且第一侧壁（12）和/或第二侧壁（21）的内侧具有凸起设置的散热齿（11）。色轮（4）阻隔在第一光路开口（13）和第二光路开口（22）之间。其中，散热齿（11）自第一侧壁（12）和/或第二侧壁（21）的内侧向色轮（4）方向延伸，可充分利用色轮（4）到这两个相对侧壁（12、21）之间的空间。同时该散热齿（11）与气流直接接触，可增加壳体与气流的接触面，进而提高壳体与气流之间的热交换效率，更快地将壳体内的热量散出去。

Description

一种色轮散热装置 技术领域
本实用新型涉及一种用于光学投影的色轮散热装置。
背景技术
色轮装置中的荧光色轮在受到光源照射时，色轮上的波长转换材料会把激发光转换成受激光，该过程激发光的部分能量会转换成热量被色轮吸收，从而引起荧光粉温度升高，转换效率降低。
技术问题
当前大部分高功率色轮都是依靠送风设备将空气通过管道输送到色轮所在腔体的内部，再通过管道将热空气从色轮内部带走。但这种主动散热方式需要额外增加送风设备以及配套的管道，而且在进风口和出风口都需要增加防尘设备，如此不仅成本升高，而且也给设备运行到来了更大噪音。而且在使用一段时间后，还需要对防尘设备进行维护，才能保证送风的效率和色轮内部空气的洁净度。
技术解决方案
本实用新型要解决的技术问题在于，针对现有技术的上述缺陷， 提供一种色轮散热装置
本实用新型解决技术问题所采用的技术方案如下：
一种色轮散热装置，包括：
壳体，所述壳体具有相对设置的第一侧壁和第二侧壁，所述第一侧壁上设有第一光路开口，所述第二侧壁上设有第二光路开口，且所述第一侧壁和 / 或第二侧壁的内侧具有凸起设置的散热齿；
以及色轮，所述色轮设置在壳体内，且所述色轮位于所述第一光路开口和第二光路开口之间；
其中，所述散热齿自第一侧壁和 / 或第二侧壁的内侧向色轮方向延伸。
作为所述色轮散热装置的进一步改进，还包括用于驱动色轮旋转的马达和用于产生流动气流的扇叶，所述马达安装在壳体内，所述色轮和扇叶均安装在马达上，且都由马达驱动并围绕马达转子的旋转中心线旋转。
作为所述色轮散热装置的进一步改进，所述散热齿为多个，且所述散热齿自壳体内侧凸起的方向与马达的转子的旋转中心线平行。
作为所述色轮散热装置的进一步改进，还包括固定盘，所述固定盘安装在马达上，并在马达的驱动下旋转，所述色轮和扇叶则设置在固定盘上。
作为所述色轮散热装置的进一步改进，所述固定盘包括套筒和与套筒相连的盘体，所述固定盘通过套筒套装在马达上，所述色轮固定在盘体上，所述扇叶设置于固定盘的套筒和 / 或盘体上。
作为所述色轮散热装置的进一步改进，所述盘体上设有多个通气口。
作为所述色轮散热装置的进一步改进，每相邻两个通气口之间设置一个扇叶。
作为所述色轮散热装置的进一步改进，所述扇叶直接设置于色轮上。
作为所述色轮散热装置的进一步改进，所述散热齿呈圆锥或圆台形。
作为所述色轮散热装置的进一步改进，所述壳体外部设有用于壳体散热的外部散热齿。
 有益效果
本实用新型提出的一种色轮散热装置，其壳体 具有相对设置的第一侧壁和第二侧壁，第一侧壁上设有第一光路开口，第二侧壁上设有第二光路开口，且第一侧壁和/或第二侧壁的内侧具有凸起设置的散热齿。色轮阻隔在第一光路开口和第二光路开口之间。其中，散热齿自第一侧壁和/或第二侧壁的内侧向色轮方向延伸，可充分利用色轮到这两个相对侧壁之间的空间。同时该散热齿与气流直接接触，可增加壳体与气流的接触面，进而提高壳体与气流之间的热交换效率，更快地将壳体内的热量散出去。
附图说明
图 1 是本实用新型 色轮散热装置一种实施例的爆炸图；
图 2 是图 1 所示结构中底壳内侧结构示意图；
图 3 为图 1 所示结构中固定盘结构示意图。
 本发明的最佳实施方式
为使本实用新型的目的、技术方案及优点更加清楚、明确，以下参照附图并举实施例对本实用新型进一步详细说明。 应当理解，此处所描述的具体实施例仅仅用以解释本实用新型，并不用于限定本实用新型。
实施例一
本实施例一提供一种色轮散热装置。
该 色轮散热装置包括 壳体以及色轮。
该壳体为一个封闭结构，其具有容置腔。且壳体上具有相对设置的第一侧壁和第二侧壁，第一侧壁上设有第一光路开口，第二侧壁上设有第二光路开口，该第一光路开口和第二光路开关可与容置腔连通形成光路通道。
该色轮固定设置在容置腔内，且色轮阻隔在第一光路开口和第二光路开口之间。使得光从第一光路开口或第二光路开口进入壳体内后，经色轮上 波长转换材料的转换，把激发光转换成受激光，受激光从第二光路开口 或第一光路开口 射出。
其中，为了能够 对色轮进行良好的散热，还设有散热齿。该散热齿自第一侧壁和/或第二侧壁的内侧向色轮方向延伸。
这种设计可充分利用色轮到第一侧壁和/或第二侧壁之间的空间。通常情况下， 色轮散热装置为扁平状结构，其中设置有 第一光路开口和第二光路开口的第一侧壁和第二侧壁面积会比较大，因此在这两个侧壁可设置较多的散热齿。该散热齿与气流直接接触，可增加壳体与气流的接触面，进而提高壳体与气流之间的热交换效率，更快地将壳体内的热量散出去。
实施例二
本实施例二提供一种色轮散热装置。
请参考图 1 ，该色轮散热装置包括壳体、马达 3 、色轮 4 和固定盘 5 。
该壳体包括底壳 1 和盖板 2 ，底壳 1 和盖板 2 相互扣合。底壳 1 和盖板 2 连接处设有密封圈，确保底壳 1 和盖板 2 的密封良好。该底壳 1 和盖板 2 扣合后，底壳 1 上的一个侧壁 12 和盖板 2 上的另一个侧壁 21 为两个相对设置的侧壁，侧壁 12 上设有第一光路开口 13 ，另一个侧壁 21 设有第二光路开口 22 。除第一光路开口 13 和第二光路开口 22 外，壳体构成一密封的容置腔。 该第一光路开口13和第二光路开关22可与容置腔连通形成光路通道。 该马达 3 安装在壳体内，这不仅包括马达3直接固定安装在底壳1或盖板2上，也包括马达3通过与壳体固定联接的支架等结构进行固定等方式。
该色轮4对应光路开口的位置设置于壳体内，并由马达3驱动进行旋转。这里所说的对应光路开口是指色轮4阻隔在第一光路开口13和第二光路开口22之间，从第一光路开口13或第二光路开口22进入的光源可照射到 色轮 4 上。色轮 4 上设有波长转换材料，该波长转换材料可将照射到色轮 4 上的光源由 激发光转换成受激光，受激光从 第二光路开口22或第一光路开口13射出 。
在本实施例中，色轮 4 是通过固定盘 5 安装在马达 3 上。
具体地，请参考图1和3， 该固定盘 5 包括 套筒51和与套筒51相连的盘体52，该固定盘5通过套筒51套装在马达3的转子外壁，该色轮4固定在盘体52上，例如可以是色轮4背光面一侧固定在盘体52上（色轮4上受到光源照射的一面为受光面，色轮4上与受光面相反的一面为背光面），从而使色轮4随马达3的转子一同转动。 色轮 4 与盘体 52 的中心位置设有孔，通过该孔套在马达 3 上。这样色轮 4 高速旋转时由于固定盘 5 的作用，有效的避免了色轮 4 的震动，使色光的投射效果更好。
当然，在其他实施例中，固定盘5的结构并不仅限于本实施例所示，例如还可采用只有一个套筒51的结构，将色轮4直接固定在套筒51上。
除此之外，色轮4也可以直接固定于马达3上，而不是通过固定盘5来实现与马达3的联动。
相比色轮 4 直接固定于马达 3 上，将色轮 4 作为固件设置在固定盘 5 上，这样就无需在色轮 4 上增设任何不必要的装置，降低色轮 4 的生产成本。而且如果色轮 4 损坏时，可仅更换色轮 4 即可，以此节约成本。
本实施例为了能够提高色轮4的散热效率，为此可设置至少一组扇叶，扇叶围绕马达转子的旋转中心线设置于壳体内，且也由马达驱动进行旋转形成类似风扇的结构，用以在壳体内形成流动的气流。这种气流与色轮4接触并进行热交换，将色轮4上的热量带走，降低色轮4的温度，同时气流在流动过程中与壳体又进行接触，将热量传导给壳体，然后壳体再向外将热量散出。
为实现扇叶与马达3的连接，本实施例将扇叶设置于固定盘5的盘体52上。
具体地，请参考图 1 ，在盘体 52 的表面设有多个扇叶 53 ，该多个扇叶 53 整体围绕盘体 52 的旋转中心线（即 马达转子的旋转中心线） 成环形设置，而每个扇叶 53 又分别沿盘体 52 的径向延伸。
采用这样的结构设计，当固定盘 5 旋转时，扇叶 53 对空气产生压力形成激流，使色轮 4 背光侧的空气快速流动，从而增加整个壳体内部的空气流动速度，将色轮 4 周围的热空气吹向壳体，增加热交换速率。
进一步地，还可以在盘体 52 上设计 多个通气口54，例如将该多个通气口54设计为整体围绕盘体52旋转中心线成环形设置，每个通气口54为圆弧形，其中每个圆弧形的通气口54又围绕盘体52旋转中心线进行延伸。
通气口54可将色轮4背光面一侧的空间与受光面一侧的空间连通（该两侧空间本身是通过色轮4与壳体内侧之间的空隙连通的），这样更利于在扇叶53旋转时色轮4背光面和受光面两侧空间气体穿过色轮4进行流动，提高空气与色轮之间的热交换效率。为了使通气口54与扇叶53能够更好的配合，使气流更好地进入到扇叶53进风口内，本实施例在每相邻两个通气口54之间设置一个扇叶53。
在其他实施例中，在不影响色轮 4 工作的前提下，通气口 54 可从盘体 52 旋转中心线沿径向向外延伸，通气口 54 呈长圆形或矩形，使得多个通气口 54 以盘体 52 旋转中心线为中心呈放射状分布。
当然，本实施例仅示出扇叶 53 设置于盘体 52 上这一种实施方式，但在其他实施例中，扇叶 53 还可单独设置于套筒 51 上，例如套筒 51 的外侧表面上设置多个扇叶，扇叶自套筒 51 中心向外沿径向呈放射状分布，且扇叶与固定盘 5 旋转中心线呈一定角度，这样就构成了一个与固定盘 5 同轴旋转的风扇。为了使迎风角度更大，扇叶的长度可以伸出固定盘 5 的边缘，具体以不碰触壳体及其他部件为准。采用这样的结构设计，可以加大扇叶的长度及扫风半径，使色轮 4 周围的空气流动速度更快。
或者，扇叶 53 也可同时设置于套筒 51 和盘体 52 上。
再或者，扇叶 53 也并非一定要设置于固定盘 5 上，在其他实施例中，扇叶 53 也可独立于固定盘 5 和色轮 4 ，单独与马达 3 联接。例如，通过一扇叶套筒或其他固定座与马达 3 的转子固定联接，将扇叶 53 安装在该扇叶套筒或其他固定座上。
再或者，扇叶 53 也可直接设置于色轮 4 上，例如，在色轮 4 背光面上固定设置多个扇叶，该扇叶随色轮 4 一同转动。
为了能够进一步地提升散热效率，本实施例中在壳体的内侧 设有凸起的散热齿 。该散热齿能够使壳体与空气的接触面积增大，极大地增加了壳体与内部空气的热交换速率，使色轮 4 周围的空气温度下降的更快，色轮 4 的降温效果更好。
该散热齿可设置于底壳 1 和 / 或盖板 2 的内侧上。具体来说，该散热齿可自侧壁 12 或侧壁 21 的内侧凸起后 向色轮方向延伸。向色轮方向延伸不仅包括散热齿 的延伸方向与 马达转子的旋转中心线平行 ，也包括 散热齿 的延伸方向与 马达转子的旋转中心线成锐角结构 。
为了使扇叶 53 所产生的气流与散热齿能够更好的接触，可设计为 散热齿对着扇叶53出风方向延伸设置。对着扇叶53出风方向延伸设置可以使散热齿上更多表面能够与扇叶53形成的流动气体进行接触。
作为一种示例，请参考图 1 和 2 ，本实施例在不影响马达 3 、色轮 4 、固定盘 5 正常运行的情况下，将散热齿 11 设置于侧壁 12 的内侧，且散热齿 11 自壳体内侧凸起，并沿马达3转子的旋转中心线向色轮4方向延伸设置。该散热齿11与扇叶53位于色轮4的同侧，而且扇叶53的出风方向对着散热齿11。
由于扇叶53形成的气流是沿马达3转子的旋转中心线流动，如将散热齿11设置于转子的旋转中心线的垂直方向上，就相当于散热齿11横在流动气体的流动方向上，一是会造成散热齿11上面向流动气流的一侧与气流进行接触较多，而背向流动气流的一侧则与气流接触较少，二是靠近扇叶53位置的散热齿11会对远离扇叶53位置的散热齿11形成阻挡，使流动气体不能很好地与远离扇叶53位置的散热齿11进行接触，实则并没有发挥出所有散热齿11的散热作用。而本示例结构采用散热齿11正对扇叶53出风方向设置，则可避免上述两个问题，使散热齿11更好的与气流进行接触散热。
同时，由于色轮装置通常是扁平状结构，其它侧壁的面积远小于侧壁12和侧壁21的面积，因此前者制造和生产成本更高，而且无法排布更多散热齿11，进而造成散热齿11的有效表面积减少。
对于散热齿11的形状可灵活选择，如柱状、板状、起伏表面等。本实施例示例结构是采用圆锥或圆台形结构，这种结构散热齿11的端部小，根部大，因此气流与散热齿11接触时，可顺着端部表面一路延伸到根部，使散热齿11充分与气流进行接触。
当然，还可以进一步地在壳体外部设有用于散热的外部散热齿或其他常用散热结构，以加强壳体与外界的散热效率。
本申请所提供的色轮散热装置，由于固定盘 5 上增加了扇叶 53 ，使色轮腔体内部的空气流动速度和范围大大增加，提高了对流换热系数，另外由于壳体内部增加了散热齿 11 ，使跟其接触的表面积也大大的增加，提高了换热效率。从而使色轮 4 工作是产生的热量更快的带出，降低色轮 4 的工作温度，使色轮 4 上荧光粉的工作效率以及使用寿命提高，使马达 3 的工作温度降低，寿命增加。
此外，将扇叶 53 作为固件设置在固定盘 5 上，这样就无需在色轮 4 上增设任何不必要的装置，降低色轮 4 的生产成本，也不会在更换色轮 4 时，由于色轮 4 上设有其他辅助散热设备而导致的材料及生产资源浪费，既能增强色轮 4 装置的散热效果，又能减 小装置的生产难度，极大地降低了生产成本。
以上内容是结合具体的实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干简单推演或替换。

Claims (10)

1. 一种色轮散热装置，其特征在于，包括：
壳体，所述壳体具有相对设置的第一侧壁和第二侧壁，所述第一侧壁上设有第一光路开口，所述第二侧壁上设有第二光路开口，且所述第一侧壁和/或第二侧壁的内侧具有凸起设置的散热齿；
以及色轮，所述色轮设置在壳体内，且所述色轮位于所述第一光路开口和第二光路开口之间；
其中，所述散热齿自第一侧壁和/或第二侧壁的内侧向色轮方向延伸。
2. 根据权利要求1所述的色轮散热装置，其特征在于，还包括用于驱动色轮旋转的马达和用于产生流动气流的扇叶，所述马达安装在壳体内，所述色轮和扇叶均安装在马达上，且都由马达驱动并围绕马达转子的旋转中心线旋转。
3. 根据权利要求2所述的色轮散热装置，其特征在于，所述散热齿为多个，且所述散热齿自壳体内侧凸起的方向与马达的转子的旋转中心线平行。
4. 根据权利要求1-3任一项所述的色轮散热装置，其特征在于，还包括固定盘，所述固定盘安装在马达上，并在马达的驱动下旋转，所述色轮和扇叶则设置在固定盘上。
5. 根据权利要求4所述的色轮散热装置，其特征在于，所述固定盘包括套筒和与套筒相连的盘体，所述固定盘通过套筒套装在马达上，所述色轮固定在盘体上，所述扇叶设置于固定盘的套筒和/或盘体上。
6. 根据权利要求5所述的色轮散热装置，其特征在于，所述盘体上设有多个通气口。
7. 根据权利要求6所述的色轮散热装置，其特征在于，每相邻两个通气口之间设置一个扇叶。
8. 根据权利要求1-3任一项所述的色轮散热装置，其特征在于，所述扇叶直接设置于色轮上。
9. 根据权利要求1-3任一项所述的色轮散热装置，其特征在于，所述散热齿呈圆锥或圆台形。
10. 根据权利要求1-3任一项所述的色轮散热装置，其特征在于，所述壳体外部设有用于壳体散热的外部散热齿。
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