WO2018032856A1 - 投影装置及其散热*** - Google Patents

投影装置及其散热*** Download PDF

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Publication number
WO2018032856A1
WO2018032856A1 PCT/CN2017/086168 CN2017086168W WO2018032856A1 WO 2018032856 A1 WO2018032856 A1 WO 2018032856A1 CN 2017086168 W CN2017086168 W CN 2017086168W WO 2018032856 A1 WO2018032856 A1 WO 2018032856A1
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WO
WIPO (PCT)
Prior art keywords
heat dissipation
heat
dissipation system
airflow
fan
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Application number
PCT/CN2017/086168
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English (en)
French (fr)
Inventor
杜伦春
黄旻
闵岚
李屹
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深圳市光峰光电技术有限公司
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Application filed by 深圳市光峰光电技术有限公司 filed Critical 深圳市光峰光电技术有限公司
Publication of WO2018032856A1 publication Critical patent/WO2018032856A1/zh

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Classifications

    • 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 the field of projection technology, in particular to a heat dissipation system and a projection device applying the same.
  • a projection device is a high-power device that converts electrical energy into light energy, and its constituent structure includes a plurality of heat sources that generate a large amount of heat during operation, such as a light source, a color wheel, a light modulator, and the like.
  • a light modulator (such as a DMD light modulator) is an important digital optical device currently used in a projector, which performs image modulation by light emitted from a light source via a color wheel or the like to form a picture.
  • the light emitted by the light source in the projector via the color wheel or the like is irradiated on the light modulator to increase the temperature of the light modulator, and a large number of control circuits integrated on the light modulator also generate considerable heat during operation. This causes the operating temperature of the light modulator to rise. Excessive operating temperatures can degrade the life of the light modulator and can even cause damage to the light modulator. Therefore, it is necessary to set a heat dissipation system to cool and cool the light modulator, and reduce the operating temperature of the light modulator to ensure that the light modulator is within the set operating temperature to ensure its performance and service life.
  • a heat sink thermally connected to a light modulator is disposed in an air flow passage, and a first air suction fan and a first air exhaust fan are respectively disposed at two ends of the air flow passage.
  • the heat generated on the modulator is transferred to the heat sink, and the airflow flowing in the airflow passage flows through the heat sink to remove the heat generated by the heat sink, thereby taking away the heat generated by the light modulator, thereby achieving The heat dissipation of the light modulator.
  • the first fan is far from the center position of the light modulator, and the air flow in the air flow channel sequentially flows through the first end, the center position, and the second end of the heat sink.
  • the airflow in the airflow passage sequentially dissipates heat to the first end, the central position, and the second end of the optical modulator, which cannot directly dissipate heat directly to the center position of the optical modulator, so that the center of the optical modulator
  • the higher operating temperature of the location reduces the lifetime of the light modulator.
  • a heat dissipation system includes a duct assembly, a first fan, and a first heat generating component, and a first air duct is formed in the air duct assembly.
  • the first fan is disposed in the first air duct, the first heat generating component is disposed outside the first air duct, and the airflow discharged by the first fan is substantially perpendicular to a main heat of the first heat generating component The center of the face.
  • the heat dissipation system further includes a heat dissipation component disposed between the first heat generating component and the first fan and thermally connected to a main heat generating surface of the first heat generating component.
  • the airflow discharged by the first fan flows into the heat dissipating component, and is guided to flow out from two airflow outflow directions different from the inflow direction of the airflow via the heat dissipating component.
  • the two airflow outflow directions are oppositely disposed and are respectively disposed substantially perpendicular to the inflow direction of the airflow.
  • the heat dissipating component includes a plurality of heat dissipating fins disposed in parallel, and an air flow channel is formed between each adjacent two heat dissipating fins, and a straight line extending in a direction of the airflow flowing into the heat dissipating device is substantially perpendicular to The plane in which the plurality of heat dissipation fins are located, the airflow flowing into the heat dissipation assembly is guided to flow from two opposite directions extending along the heat dissipation fin via the plurality of air flow passages.
  • the heat dissipation system is further provided with a second air passage and a third air passage for respectively flowing two air flows flowing out through the heat dissipation component.
  • the heat dissipation system further includes a current limiting plate disposed at an air inlet of the first air passage for preventing the flow through the second air duct or the third air passage. Airflow is drawn into the first air duct.
  • the air duct assembly includes a plurality of panels connected to each other, and sidewalls of the plurality of panels define the first air duct.
  • the at least one panel is made of a thermally conductive material
  • the heat dissipation system further comprises a second heating element thermally coupled to the panel of thermally conductive material.
  • the plurality of panels are made of a heat insulating material.
  • a projection device comprising any of the above described heat dissipation systems.
  • the heat dissipation system of the present invention provides a first fan capable of generating an air flow substantially at a center position of the first heat generating component, so that the cold air absorbed by the first fan directly dissipates heat to the center position of the first heat generating component, thereby improving the pair.
  • the heat dissipation efficiency of the first heating element is provided.
  • FIG. 1 is a view showing the optical path structure of a projection apparatus according to an embodiment of the present invention.
  • FIG. 2 is a partial structural schematic view of a heat dissipation system according to a first embodiment of the present invention.
  • FIG 3 is a partial structural schematic view of a heat dissipation system according to a second embodiment of the present invention.
  • Projection device 100 cooling system 200 light source 10 Color wheel 20 Optical relay system 30 Light modulator 40 Projection lens unit 50 Channel component 60 Plate 61 First air duct 62 Inlet 621 Air outlet 623 First fan 63 Heat sink 64 Heat sink fin 642 Second fan 65 Control panel bracket 66 Current limiting plate 72 Second air duct 73 Second heating element 74 Third heating element 75 Fourth heating element 76 Third air duct 77 Third fan 78
  • intersection angle is approximately 90°, for example, the intersection angle is 90 ⁇ 5°, 90. ⁇ 10°.
  • a projection apparatus 100 provided by an embodiment of the present invention includes a light source 10 , a color wheel 20 , an optical relay system 30 , a light modulator 40 , and a projection lens unit 50 .
  • the light source 10 is used to emit excitation light, such as blue excitation light, and the light source 10 may be a blue laser light source (or blue laser). In a modified embodiment, the light source 10 may also be a light source of other colors, and is not limited to the blue light source.
  • the light source 10 may be an ultraviolet laser source (or an ultraviolet laser) to emit ultraviolet excitation. Light.
  • the light source 10 is preferably a semiconductor laser light source for providing high brightness excitation light.
  • the color wheel 20 is disposed on the optical path of the excitation light emitted by the light source 10 for receiving the emitted excitation light of the light source 10 and emitting the light of the at least two colors.
  • the color wheel 20 may be a disk-shaped color wheel for sequentially emitting light of the at least two colors (such as red, green, blue, three-color light, yellow-blue light, etc.).
  • the color wheel 20 may be provided with a fluorescent material, and the fluorescent material may be excited by the excitation light to generate a laser of another color or two colors (such as a laser of a color such as red, green and yellow). Thereby the color wheel can emit light of at least two colors.
  • the color wheel 20 is a transmissive color wheel, that is, the light of the light source 10 is incident from one side of the color wheel 20, and the other side of the color wheel 20 emits the at least two types.
  • the light of the color can also be a reflective color wheel 20.
  • the optical relay system 30 is disposed on one side of the light source 10 for performing uniformization, collection, and shaping of the light emitted by the color wheel 20 (for example, such that the projection spot of the light beam conforms to a predetermined shape). Provided to the light modulator 40.
  • the light modulator 40 is disposed between the optical relay system 30 and the projection lens unit 50 for illuminating a light beam incident on the light modulator 40 via the optical relay system 30 according to input image data. Image modulation is performed to generate modulated image light, and the modulated image light is transmitted to the projection lens unit 50.
  • the light modulator 40 may include a reflective light modulator or a transmissive light modulator. Wherein, the light beam from the light source 10 is incident on the front surface of the reflective light modulator and is reflected from the reflective light modulator to the projection lens unit 50; or the light beam from the light source 10 is incident on the projected light The front surface of the modulator is transmitted to the projection lens unit 50 through the projection type light modulator.
  • the reflective light modulator comprises a reflective light valve (Digital Micromirror Device, DMD), the reflective light valve comprising a plurality of tiny mirrors of the same number of pixels, electronically or mechanically changing the angle of each mirror into the reflection
  • the beam on the front surface of the light valve is modulated and reflected.
  • the light modulator 40 is a reflective light valve, that is, a DMD light modulator.
  • the projection lens unit 50 is configured to magnify an incident modulated image light and project the modulated image light onto a screen (not shown) to display a predetermined image.
  • the light modulator 40 When the light modulator 40 is driven, it generates heat by itself. At the same time, in addition to self-heating, the reflective optical modulator generates heat due to reflection loss, and the projection type optical modulator generates heat due to transmission loss.
  • the first embodiment of the present invention provides a heat dissipation system 200 disposed adjacent to the light modulator 40.
  • the heat dissipation system 200 is configured to dissipate heat from the heat generating components of the light modulator 40, and other projection devices 100.
  • the heat dissipation system 200 includes a channel assembly 60, a first fan 63, a heat dissipation assembly 64, and a second fan 65.
  • the channel assembly 60 includes a plurality of panels 61 that are interconnected. It will be appreciated that the plurality of panels 61 may be integrally formed to form the channel assembly 60, or may be separately formed and reassembled to form the channel assembly 60. At least one panel 61 is mounted to the control panel bracket 66. The control board bracket 66 serves as a mounting bracket for the control board of the projection apparatus 100. It will be appreciated that in other embodiments, the channel assembly 60 can be mounted to other internal brackets of the projection device 100.
  • a first air passage 62 is formed in the passage assembly 60. In other words, the side walls of the plurality of panels 61 define the first air passage 62.
  • the first air passage 62 has an air inlet 621 and an air outlet 623.
  • the first fan 63 is disposed at the air outlet 623. It can be understood that the first fan 63 can be disposed directly on the plate 61 of the first air duct 62 or on the internal support frame (not shown) of the projection device 100. It can be understood that in other embodiments, other internal components of the projection device 100, such as a circuit board, electronic components, etc., may also be disposed on the panel 61 to cause the heat dissipation system 200 to perform other internal components of the projection device 100. Cooling.
  • the first air duct 62 In the first duct 62, external cold air is sucked into the first duct 62 from the air inlet 621 by the pressure (negative pressure) generated by the first fan 63, and is discharged by the first fan 63 from the air outlet 623. Road 62 outside.
  • the first air duct 62 is generally dome shaped for guiding and forming an air flow that is substantially perpendicular to the heat dissipation assembly 64. It can be understood that in other embodiments, the shape of the first air passage 62 is not limited.
  • the plurality of plates 61 are made of a heat insulating material such as an insulating plastic material for preventing heat outside the first air passage 62 from being transmitted to the cold air in the first air passage 62 via the air passage wall.
  • the heat dissipation assembly 64 is disposed outside the first air passage 62 and located below the air flow of the air outlet of the first fan 63. Specifically, in the illustrated embodiment, the air outlet of the first fan 63 also faces the center position of the heat dissipation assembly 64. It can be understood that, in other embodiments, the center position of the heat dissipation component 64 may not be opposite to the air outlet of the first fan 63, as long as the heat dissipation component 64 is located below the airflow of the air outlet of the first fan 63.
  • the airflow generated by the first fan 63 may be substantially opposite (or substantially perpendicular) to the center of the heat dissipation assembly 64, for example, the first fan 63 is disposed at a middle position of the first air passage 62. And the airflow discharged by the first fan 63 flows to the center position of the heat dissipation assembly 64 substantially in a right or vertical direction.
  • the heat dissipating component 64 includes a plurality of heat dissipating fins 642 disposed in parallel, and each of the two adjacent heat dissipating fins 642 has a predetermined gap therebetween to form an air flow channel.
  • the heat dissipation fins 642 are disposed in a strip shape, and the plurality of heat dissipation fins 642 are arranged in a rectangular shape in parallel.
  • a straight line extending in the airflow direction of the cool air discharged from the exhaust vent of the first fan 63 is substantially perpendicular to a plane in which the plurality of heat radiating fins 642 disposed in parallel are located.
  • the cool air discharged from the air outlet of the first fan 63 is blown substantially vertically toward the center of the plane of the plurality of heat dissipation fins 642 of the heat dissipation assembly 64, and guided by the air flow passages, from the heat dissipation fins.
  • the 642 is divided into two airflows at a substantially central position, and the outflow directions of the two airflows are substantially perpendicular to the inflow direction of the airflow flowing into the heat dissipation assembly 64, respectively.
  • the two air flows are respectively discharged in the opposite directions, that is, two opposite directions in which the heat radiating fins 642 extend along the length thereof, under the action of the pressure (negative pressure) generated by the second fan 65, and the heat dissipation system is discharged. 200 outside.
  • the second fan 65 can be omitted, and the two airflows shunted by the heat dissipation component 64 can also be discharged outside the heat dissipation system 200 under the action of the first fan 63.
  • the heat sink assembly 64 is also thermally coupled to the first heat generating component.
  • the first heat generating component is the light modulator 40.
  • the air outlet of the first fan 63 is substantially opposite to the center position of the main heat generating surface of the first heat generating component. It can be understood that the air outlet of the first fan 63 may not face the center position of the main heat generating surface of the first heat generating component as long as the airflow discharged by the first fan 63 is substantially perpendicular to the main heat of the first heat generating component.
  • the air flow at the center of the face may be, for example, the first fan 63 is disposed at a central portion of the first air passage 62 and generates an air flow that is substantially opposite or perpendicular to the center of the main heat generating surface of the first heat generating component.
  • the heat generated by the first heating element is transferred to the heat dissipation component 64, and the two airflows branched by the heat dissipation component 64 discharge heat generated by the first heat generating component out of the heat dissipation system 200. Since the air outlet of the first fan 63 is substantially opposite to the center position of the main heat generating surface of the first heat generating component, heat generated at a center position of the main heat generating surface of the first heat generating component is directly transmitted to the heat sink. The assembly 64 is in turn carried away by the air flow driven by the first fan 63, thereby improving the heat dissipation efficiency of the center position of the main heat generating surface of the first heat generating component.
  • a heat dissipation system 200 has a structure substantially the same as that of the projection apparatus of the first embodiment. The difference is that the heat dissipation system 200 further includes a current limiting plate 72, a second heating element 74, a third heating element 75, a fourth heating element 76, and a third fan 78.
  • the heat generation amounts of the third heat generating component 75 and the fourth heat generating component 76 are both greater than the heat generation amount of the first heat generating component.
  • At least one of the plates 61 is made of a thermally conductive material such as silicon, silver, copper, gold, aluminum or the like.
  • the plate member 61 made of a heat conductive material is thermally connected to the second heat generating component 74, which is, for example, a circuit board.
  • the heat dissipation system 200 is further provided with a second air passage 73 and a third air passage 77, two air flows that are branched via the heat dissipation assembly 64, wherein one airflow is discharged out of the heat dissipation system 200 via the second air passage 73, and the other The strand airflow exits the heat dissipation system 200 via the third air duct 77.
  • the second fan 65 and the third heat generating component 75 are disposed in the second air duct 73.
  • the airflow flowing through the second air duct 73 discharges the heat generated by the third heat generating component 75 to the heat dissipation system 200.
  • the third fan 78 and the fourth heat generating component 76 are disposed in the third air duct 77. Under the action of the third fan 78, the airflow flowing through the third air duct 77 discharges the heat generated by the fourth heat generating component 76 to the projection apparatus 100. outer.
  • the restrictor plate 72 is disposed at the air inlet 621 of the first air duct 62, and is bent and extended toward the second air duct 73 for preventing the gas flowing out of the second air duct 73 or the third air duct 77 from being directly sucked in. In the air passage 62, the area of the air inlet 621 is increased, so that the outside cold air is better introduced into the first air passage 62.
  • the heat dissipating component 64 may be omitted, and the airflow discharged by the first fan 63 flows substantially perpendicularly to a central position of the main heat generating surface of the first heat generating component, thereby directly The central position of the first heating element is used to dissipate heat.
  • the two airflows shunted through the heat dissipation component 64 can flow in two opposite directions.
  • the heat dissipation component 64 includes a plurality of heat dissipation fins 642 disposed in parallel.
  • the shape of the heat dissipation fins 642 is V-shaped.
  • the cold air absorbed by the first fan 63 is directly directed to the main heat generating surface of the first heat generating component by providing the first fan 63 substantially facing the center position of the main heat generating surface of the first heat generating component.
  • the central position is used for heat dissipation to improve the heat dissipation efficiency of the first heating element.
  • the airflow direction of the airflow discharged from the first air duct 62 is substantially perpendicular to the plane in which the plurality of heat radiating fins 642 disposed in parallel in the heat dissipating component 64 are located, and an airflow is formed between the adjacent two heat radiating fins 642.
  • the passages cause the airflow discharged from the first air passage 62 to flow substantially perpendicularly to a central position of the plane in which the plurality of heat dissipation fins 642 are located, and the airflow flowing into the heat dissipation assembly 64 is centered by the plane in which the plurality of heat dissipation fins 642 are located.
  • the flow in the extending direction of the air flow passage is divided into two opposite air flows out of the heat dissipation component 64, thereby further improving the heat dissipation efficiency of the first heat generating component.
  • the third heat generating element 75 and the fourth heat generating element 76 are respectively disposed in the second air passage 73 and the third air passage 77, which simplifies the structure of the heat dissipation system 200 while improving the overall heat dissipation efficiency of the heat dissipation system 200.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)

Abstract

一种散热***及应用上述散热***的投影装置，散热***包括风道组件（60）、第一风扇（63）以及第一发热元件（40），所述风道组件（60）中形成有第一风道（62）。所述第一风扇（63）设置于所述第一风道（62）中，所述第一发热元件（40）设置于所述第一风道（62）外，且所述第一风扇（63）排出的气流大致垂直于所述第一发热元件（40）的主要发热面的中心位置。散热***中，第一风扇（63）吸收的冷空气直接针对第一发热元件（40）的中心位置进行散热，提高对第一发热元件（40）的散热效率。

Description

投影装置及其散热*** 技术领域
本实用新型涉及投影技术领域，尤其涉及一种散热***以及应用该散热***的投影装置。
 背景技术
随着科技的发展，投影装置(如投影仪)在生活和工作中的应用越来越广泛。投影装置是一种将电能转化为光能的大功率设备，其组成结构包括有多个在工作过程中产生大量热量的热源，例如光源、色轮、光调制器等。
 技术问题
其中，光调制器（如DMD光调制器）为目前在投影机中使用的重要数字光学装置，其通过对光源经由色轮等发出的光进行图像调制以形成画面。然而，投影机中光源经由色轮等发出的光线照射在光调制器上会使光调制器的温度上升，同时光调制器上集成的大量的控制电路在工作时也会产生相当大的热量，从而导致光调制器工作温度升高。过高的工作温度会使得光调制器的使用寿命降低，甚至可能导致光调制器损坏。因此，需要设置散热***对光调制器进行散热降温，降低光调制器的工作温度，以保证光调制器处于设定的工作温度内，以保证其性能以及使用寿命。
现有投影装置中，主要通过将与光调制器热连接的散热器设置在一气流通道中，在所述气流通道的两端分别设置吸风第一风扇以及排风第一风扇，所述光调制器上产生的热量热传递至所述散热器上，在所述气流通道中流通的气流流经散热器将散热器产生的热量带走，从而将光调制器产生的热量带走，实现对光调制器的散热。然而，现有的散热方式中，所述第一风扇距离所述光调制器的中心位置较远，且所述气流通道中的气流依次经由散热器的第一端、中心位置以及第二端流出，即所述气流通道中的气流依次对所述光调制器的第一端、中心位置以及第二端进行散热，其不能对光调制器的中心位置直接进行有效地散热，使光调制器中心位置的工作温度较高，降低了光调制器的寿命。
 技术解决方案
鉴于上述状况，有必要提供一种散热效率较高的散热***以及采用所述散热***的投影装置。
一种散热***，其包括风道组件、第一风扇以及第一发热元件，所述风道组件中形成有第一风道。所述第一风扇设置于所述第一风道中，所述第一发热元件设置于所述第一风道外，且所述第一风扇排出的气流大致垂直于所述第一发热元件的主要发热面的中心位置。
作为一种优选方案，所述散热***还包括散热组件，所述散热组件设置于所述第一发热元件与所述第一风扇之间并与所述第一发热元件的主要发热面热连接，所述第一风扇排出的气流流入所述散热组件内，并经由所述散热组件引导从不同于气流的流入方向的两个气流流出方向流出。
作为一种优选方案，所述两个气流流出方向相反设置，并分别与所述气流的流入方向大致垂直设置。
作为一种优选方案，所述散热组件包括平行设置的多个散热鳍片，每相邻两个散热鳍片之间形成有气流通道，沿气流流入所述散热装置的方向延伸的直线大致垂直于所述多个散热鳍片所在的平面，流入所述散热组件内的气流经由多个气流通道引导从沿所述散热鳍片延伸的两个相反方向流出。
作为一种优选方案，所述散热***还设置有供经由所述散热组件流出的两股气流分别流通的第二风道以及第三风道。
作为一种优选方案，所述散热***还包括限流板，所述限流板设置于所述第一风道的进风口，用于防止经由所述第二风道或第三风道流出的气流被吸入所述第一风道中。
作为一种优选方案，所述风道组件包括相互连接的多个板件，所述多个板件的侧壁界定所述第一风道。
作为一种优选方案，至少一个板件由导热材料制成，所述散热***还包括与导热材料制成的板件相热连接的第二发热元件。
作为一种优选方案，所述多个板件由绝热材料制成。
一种投影装置，其包括上述任一种散热***。
 有益效果
本实用新型的散热***，通过设置能够大致正对第一发热元件的中心位置产生气流的第一风扇，使由第一风扇吸收的冷空气直接针对第一发热元件的中心位置进行散热，提高对第一发热元件的散热效率。
 附图说明
图1为本实用新型一实施方式的投影装置的光路结构图。
图2为本实用新型第一实施方式的散热***的部分结构示意图。
图3为本实用新型第二实施方式的散热***的部分结构示意图。
主要元件符号说明
投影装置 100
散热*** 200
光源 10
色轮 20
光中继*** 30
光调制器 40
投影透镜单元 50
通道组件 60
板件 61
第一风道 62
进风口 621
出风口 623
第一风扇 63
散热组件 64
散热鳍片 642
第二风扇 65
控制板支架 66
限流板 72
第二风道 73
第二发热元件 74
第三发热元件 75
第四发热元件 76
第三风道 77
第三风扇 78
如下具体实施方式将结合上述附图进一步说明本实用新型。
 本发明的最佳实施方式
为使本实用新型的上述目的、特征和优点能够更加明显易懂，下面结合附图对本实用新型的具体实施方式做详细的说明。
在下面的描述中阐述了很多具体细节以便于充分理解本实用新型，但是本实用新型还可以采用其他不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本实用新型内涵的情况下做类似应用，因此本实用新型不受下面公开的具体实施例的限制。
其次，本实用新型结合示意图进行详细描述，在详述本实用新型实施例时，为便于说明，表示器件结构的剖面图会不依一般比例作局部放大，而且所述示意图只是示例，其在此不应限制本实用新型保护的范围。此外，在实际制作中应包含长度、宽度及深度的三维空间尺寸。
需要说明的是，在本实用新型实施方式以及所附权利要求书中所使用的“大致垂直”以及“大致正对”是指相交角度大致为90°，例如相交角度为90±5°、90±10°。
下面通过实施方式进行详细描述。
请参阅图1，本实用新型实施方式提供的投影装置100，其包括光源10、色轮20、光中继***30、光调制器40以及投影透镜单元50。
所述光源10用于发出激发光，如蓝色激发光，所述光源10可以为蓝色激光光源（或称蓝色激光器）。在一种变更实施方式中，所述光源10也可以是其他颜色的光源，并不以蓝色光源为限，如所述光源10可以是紫外激光光源（或称紫外激光器），从而发出紫外激发光。进一步地，所述光源10优选为半导体激光光源，用以提供高亮度的激发光。
所述色轮20设置于所述光源10发出的激发光的光路上，用于接收所述光源10的发出的激发光并射出所述至少两种颜色的光。所述色轮20可以为圆盘状的色轮，用于依序射出所述至少两种颜色的光（如红绿蓝三色光、黄蓝两色光等）。具体地，所述色轮20上可以设置有荧光材料，所述荧光材料受所述激发光的激发可以产生另一种或两种颜色的受激光（如红绿黄等颜色的受激光），从而所述色轮可以射出至少两种颜色的光。
本实施方式中，所述色轮20为透射式色轮，即所述光源10的光从所述色轮20的一侧入射，并且所述色轮20的另一侧射出所述至少两种颜色的光。当然，在一种变更实施方式中，所述色轮也可以为反射式色轮20。
所述光中继***30设置于所述光源10的一侧，用于将所述色轮20射出的光进行匀光、收集及整形（例如，使得光束的投射光斑符合预定形状）等处理后提供至所述光调制器40。
所述光调制器40设置于所述光中继***30与所述投影透镜单元50之间，用于依据输入图像数据对经由所述光中继***30入射到所述光调制器40的光束进行图像调制以产生调制图像光线，并将所述调制图像光线传输至所述投影透镜单元50。所述光调制器40可以包括反射型光调制器或者透射型光调制器。其中，来自光源10的光束入射到反射型光调制器的前表面上，并从该反射型光调制器被反射传输至所述投影透镜单元50；或者，来自光源10的光束入射到投射型光调制器的前表面上，并穿过该投射型光调制器传输至所述投影透镜单元50。反射型光调制器包括反射型光阀（数字微镜装置，DMD），所述反射型光阀包括多个与像素数量相同的微小镜子，通过电子地或机械地改变各个镜子的角度，进入反射型光阀前表面的光束被调制和反射。本实施方式中，光调制器40为反射型光阀，即DMD光调制器。
所述投影透镜单元50用于将入射的调制图像光线进行放大，并将所述调制图像光线向屏幕（图未示）进行投影以显示预定图像。
光调制器40被驱动时，其自身产生热量。同时，除自发热外，反射型光调制器由于反射损失产生热量，投射型光调制器由于传输损失产生热量。
请一并参阅图2，本实用新型第一实施方式提供的邻近所述光调制器40设置的散热***200。所述散热***200用于对光调制器40,等其他投影装置100的发热元件进行散热。具体地，所述散热***200包括通道组件60、第一风扇63、散热组件64以及第二风扇65。
所述通道组件60包括相互连接的多个板件61。可以理解的是，所述多个板件61可一体成型以形成所述通道组件60，也可分体成型再组装以形成所述通道组件60。至少一个板件61安装于控制板支架66上。所述控制板支架66用作所述投影装置100的控制板的安装架。可以理解的是，在其他实施方式中，通道组件60可安装于投影装置100的其他内部支架上。所述通道组件60内形成有第一风道62，换句话说，所述多个板件61的侧壁界定形成所述第一风道62。所述第一风道62具有进风口621与出风口623。所述第一风扇63设置于所述出风口623处。可以理解的是，所述第一风扇63可以直接设置在第一风道62的板件61上，也可以设置在投影装置100的内部支撑架（图未示）上。可以理解的是，在其他实施方式中，投影装置100的其他内部元件，如电路板、电子元件等，还可设置在板件61上，以使散热***200对投影装置100的其他内部元件进行散热。
在第一风道62中，外部冷空气从进风口621由第一风扇63产生的压力（负压）吸入到第一风道62中，并被第一风扇63从出风口623排出第一风道62外。具体在图示实施方式中，所述第一风道62大致为┐形，用于引导并形成大致垂直于所述散热组件64的气流。可以理解的是，在其他实施方式中，所述第一风道62的形状并不受限制。所述多个板件61由绝热材料（如绝缘塑胶材料）制成，用于防止第一风道62外的热量经由风道壁传递至第一风道62内的冷空气中。
散热组件64设置于第一风道62外，并位于第一风扇63的排风口的气流下方。具体在图示实施方式，所述第一风扇63的排风口也正对散热组件64的中心位置。可以理解的是，在其他实施方式中，所述散热组件64的中心位置也可不正对所述第一风扇63的排风口，只要散热组件64位于第一风扇63的排风口的气流下方，且由所述第一风扇63产生的气流与所述散热组件64的中心大致正对（或大致垂直）即可，例如，将第一风扇63设置在所述第一风道62的中部位置，且所述第一风扇63排出的气流大致正对或垂直地流向所述散热组件64的中心位置。
所述散热组件64包括平行设置的多个散热鳍片642，每相邻的两个散热鳍片642之间具有预设间隙，以形成气流通道。本实施方式中，所述散热鳍片642呈条状设置，多个散热鳍片642平行排列呈长方形设置。沿从第一风扇63的排风口排出的冷空气的气流方向延伸的直线与平行设置的多个散热鳍片642所在的平面大致垂直。从第一风扇63的排风口排出的冷空气大致垂直地吹向所述散热组件64的多个散热鳍片642所在的平面的中心位置，并在各气流通道的引导下，从散热鳍片642大致中心位置处分流成两股气流排出，且所述两股气流的流出方向分别与流入所述散热组件64的气流的流入方向大致垂直。所述两股气流分别沿相反的两个方向，即所述散热鳍片642沿其长度方向延伸的两个相反方向，在第二风扇65产生的压力（负压）的作用下，排出散热***200外。可以理解的是，在其他实施方式中，所述第二风扇65可以省略，由散热组件64分流的两股气流在第一风扇63的作用下，同样可排出散热***200外。
散热组件64还与第一发热元件热连接。本实施方式中，所述第一发热元件为光调制器40。所述第一风扇63的排风口大致正对第一发热元件的主要发热面的中心位置。可以理解的是，所述第一风扇63的排风口可不正对第一发热元件的主要发热面的中心位置，只要第一风扇63排出的气流大致垂直于所述第一发热元件的主要发热面的中心位置的气流即可，例如，将第一风扇63设置在所述第一风道62的中部位置并产生大致正对或垂直所述第一发热元件的主要发热面的中心的气流。所述第一发热元件产生的热量热传递至散热组件64，经由散热组件64分流的两股气流将第一发热元件产生的热量排出散热***200外。由于所述第一风扇63的排风口大致正对所述第一发热元件的主要发热面的中心位置，所述第一发热元件的主要发热面的中心位置产生的热量直接传递至所述散热组件64进而被第一风扇63驱动的气流快速带走，从而提高了对所述第一发热元件的主要发热面的中心位置的散热效率。
请参阅图3，本实用新型第二实施方式的提供的散热***200，其结构与第一实施方式的投影装置的结构大致相同。不同之处在于：散热***200还包括限流板72、第二发热元件74、第三发热元件75、第四发热元件76以及第三风扇78。优选地，所述第三发热元件75以及第四发热元件76的发热量均大于所述第一发热元件的发热量。至少一个板件61由导热材料制成，如硅、银、铜、金铝等。该由导热材料制成的板件61与第二发热元件74热连接，所述第二发热元件74例如为电路板。所述散热***200中还设置有第二风道73与第三风道77，经由散热组件64分流的两股气流，其中一股气流经由第二风道73排出散热***200外，其中另一股气流经由第三风道77排出散热***200外。第二风扇65以及第三发热元件75设置在第二风道73中，在第二风扇65的作用下，流经第二风道73的气流将第三发热元件75产生的热量排出散热***200外。第三风扇78以及第四发热元件76设置在第三风道77中，在第三风扇78的作用下，流经第三风道77的气流将第四发热元件76产生的热量排出投影装置100外。限流板72设置在第一风道62的进风口621处，其朝向第二风道73弯折延伸，用于防止由第二风道73或第三风道77流出的气体被直接吸入第一风道62中，且增大了进风口621的面积，使外界冷空气更好地导入第一风道62中。
可以理解的是，在其他实施方式中，所述散热组件64可以省略，所述第一风扇63排出的气流大致垂直地流向所述第一发热元件的主要发热面的中心位置，从而直接对所述第一发热元件的中心位置进行散热。
可以理解的是，在其他实施方式中，经由所述散热组件64分流的两股气流可沿两个并不相反的方向流出，例如，散热组件64包括多个平行设置的散热鳍片642，所述散热鳍片642的形状为V形。
本实用新型的散热***200，通过设置大致正对第一发热元件的主要发热面的中心位置的第一风扇63，使由第一风扇63吸收的冷空气直接针对第一发热元件的主要发热面的中心位置进行散热，提高对第一发热元件的散热效率。同时，由于从第一风道62排出的气流的气流方向与散热组件64中平行设置的多个散热鳍片642所在的平面大致相垂直，且相邻两个散热鳍片642之间形成有气流通道，使从第一风道62排出的气流大致垂直地流向多个散热鳍片642所在的平面的中心位置，且流入散热组件64中的气流由多个散热鳍片642所在的平面的中心位置处沿气流通道的延伸方向分流为两股方向相反的气流流出散热组件64外，进一步提高了对第一发热元件的散热效率。且在第二风道73以及第三风道77中分别设置第三发热元件75以及第四发热元件76，在提高散热***200的整体散热效率的同时简化了散热***200的结构。
以上实施方式仅用以说明本实用新型的技术方案而非限制，另外，可知的是，对于其他类型装置中的发热元件的散热也可以参照采用本实用新型所提供的散热***。尽管参照以上较佳实施方式对本实用新型进行了详细说明，本领域的普通技术人员应当理解，可以对本实用新型的技术方案进行修改或等同替换都不应脱离本实用新型技术方案的精神和范围。

Claims (10)

1.一种散热***，其包括风道组件、第一风扇以及第一发热元件，所述风道组件中形成有第一风道，其特征在于：所述第一风扇设置于所述第一风道中，所述第一发热元件设置于所述第一风道外，且所述第一风扇排出的气流大致垂直于所述第一发热元件的主要发热面的中心位置。
2.如权利要求1所述的散热***，其特征在于：所述散热***还包括散热组件，所述散热组件设置于所述第一发热元件与所述第一风扇之间并与所述第一发热元件的主要发热面热连接，所述第一风扇排出的气流流入所述散热组件内，并经由所述散热组件引导从不同于气流的流入方向的两个气流流出方向流出。
3.如权利要求2所述的散热***，其特征在于：所述两个气流流出方向相反设置，并分别与所述气流的流入方向大致垂直设置。
4.如权利要求3所述的散热***，其特征在于：所述散热组件包括平行设置的多个散热鳍片，每相邻两个散热鳍片之间形成有气流通道，沿气流流入所述散热装置的方向延伸的直线大致垂直于所述多个散热鳍片所在的平面，流入所述散热组件内的气流经由多个气流通道引导从沿所述散热鳍片延伸的两个相反方向流出。
5.如权利要求2所述的散热***，其特征在于：所述散热***还设置有供经由所述散热组件流出的两股气流分别流通的第二风道以及第三风道。
6.如权利要求5所述的散热***，其特征在于：所述散热***还包括限流板，所述限流板设置于所述第一风道的进风口，用于防止经由所述第二风道或第三风道流出的气流被吸入所述第一风道中。
7.如权利要求1所述的散热***，其特征在于：所述风道组件包括相互连接的多个板件，所述多个板件的侧壁界定所述第一风道。
8.如权利要求7所述的散热***，其特征在于：至少一个板件由导热材料制成，所述散热***还包括与导热材料制成的板件相热连接的第二发热元件。
9.如权利要求7所述的散热***，其特征在于：所述多个板件由绝热材料制成。
10.一种投影装置，其包括权利要求1-9项中任一项所述的散热***。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023065824A1 (zh) * 2021-10-18 2023-04-27 荣耀终端有限公司 风扇及电子设备

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205982964U (zh) * 2016-08-16 2017-02-22 深圳市光峰光电技术有限公司 投影装置及其散热***
CN109152296A (zh) * 2018-09-28 2019-01-04 佛吉亚好帮手电子科技有限公司 一种车载娱乐导航散热风道***

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1573521A (zh) * 2003-05-30 2005-02-02 精工爱普生株式会社 冷却装置、具备该冷却装置的光学装置及投影机
US20140125958A1 (en) * 2012-11-02 2014-05-08 Hon Hai Precision Industry Co., Ltd. Projector with dissipatiion sinks and fan
CN103995422A (zh) * 2014-05-22 2014-08-20 无锡启晖光电科技有限公司 投影机灯泡的冷却机构
CN203882078U (zh) * 2014-04-17 2014-10-15 深圳市绎立锐光科技开发有限公司 一种dmd散热结构及投影机
CN104267566A (zh) * 2014-08-15 2015-01-07 广东威创视讯科技股份有限公司 一种投影机风冷散热装置
CN205982964U (zh) * 2016-08-16 2017-02-22 深圳市光峰光电技术有限公司 投影装置及其散热***

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1573521A (zh) * 2003-05-30 2005-02-02 精工爱普生株式会社 冷却装置、具备该冷却装置的光学装置及投影机
US20140125958A1 (en) * 2012-11-02 2014-05-08 Hon Hai Precision Industry Co., Ltd. Projector with dissipatiion sinks and fan
CN203882078U (zh) * 2014-04-17 2014-10-15 深圳市绎立锐光科技开发有限公司 一种dmd散热结构及投影机
CN103995422A (zh) * 2014-05-22 2014-08-20 无锡启晖光电科技有限公司 投影机灯泡的冷却机构
CN104267566A (zh) * 2014-08-15 2015-01-07 广东威创视讯科技股份有限公司 一种投影机风冷散热装置
CN205982964U (zh) * 2016-08-16 2017-02-22 深圳市光峰光电技术有限公司 投影装置及其散热***

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023065824A1 (zh) * 2021-10-18 2023-04-27 荣耀终端有限公司 风扇及电子设备

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