WO2023004906A1 - Projector with cyclic heat sink - Google Patents

Projector with cyclic heat sink Download PDF

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Publication number
WO2023004906A1
WO2023004906A1 PCT/CN2021/114047 CN2021114047W WO2023004906A1 WO 2023004906 A1 WO2023004906 A1 WO 2023004906A1 CN 2021114047 W CN2021114047 W CN 2021114047W WO 2023004906 A1 WO2023004906 A1 WO 2023004906A1
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WO
WIPO (PCT)
Prior art keywords
housing
lens
projector
reflector
exhaust fan
Prior art date
Application number
PCT/CN2021/114047
Other languages
French (fr)
Chinese (zh)
Inventor
许博超
Original Assignee
深圳市远古科技有限公司
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Filing date
Publication date
Application filed by 深圳市远古科技有限公司 filed Critical 深圳市远古科技有限公司
Publication of WO2023004906A1 publication Critical patent/WO2023004906A1/en

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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
    • 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

Definitions

  • the utility model relates to the technical field of projectors, in particular to a projector with a circulation cooling device.
  • the heat dissipation of projectors on the market is mainly in the form of single-drawing or single-blowing fans.
  • the single-extraction method refers to that the fan only extracts the hot air inside the projector, and then exhausts it to the outside of the projector.
  • This heat dissipation method has the following defects: (1), because the projector is provided with obstacles such as structural parts and circuit boards, it is necessary to increase the wind power of the fan to effectively dissipate heat, which will cause the fan to produce certain mechanical noise and affect the projector. (2) When the suction force of the fan is increased, it will generate high temperature, and the fan will work in a high temperature environment for a long time, which will greatly reduce its service life.
  • the single blowing method refers to that the fan blows the heat sink inside the projector.
  • This heat dissipation method has the following defects: (1) obstacles such as structural parts and circuit boards are arranged inside the projector, and it is necessary to increase the wind power of the fan to effectively dissipate heat, which will cause the fan to produce certain mechanical noise and affect the performance of the projector. User experience effect; (2), when the hot air inside the projector flows to the outside, it will be directly blown on the casing of the projector, and part of the air flowing outward will be blocked by the outer casing, so that the hot air is blown on the projector. A thermal cycle is formed inside, which eventually causes the internal temperature of the projector to rise, resulting in poor heat dissipation.
  • the utility model provides a projector with a circulation heat dissipation device.
  • the circulation heat dissipation is realized, so that the heat inside the projector can be quickly dissipated into the air.
  • the utility model provides a projector with a circulating heat dissipation device, including a housing, an exhaust fan and a radiator.
  • the housing is a hollow structure, and an LED light source, a lens assembly and a reflector are arranged inside the housing.
  • a lens is fixedly installed on the outer side of the casing, and the exhaust fan and the radiator are attached to the casing on the same side as the lens; the exhaust fan is arranged between the radiator and the casing, and the One side of the casing is provided with an air inlet, and the air inlet is located at the rear end of the reflector; when the exhaust fan is working, the air is sucked in from the air inlet, and after passing through the lens assembly, the heat is transferred to the radiator, so that the The heat is dissipated.
  • the LED light source and the lens are arranged on two mutually perpendicular planes of the housing, the rear end of the lens is provided with the reflector, and the two ends of the reflector are fixed on the inner side of the housing; After the light from the LED light source passes through the lens assembly, it is reflected by the reflector and then emitted from the lens.
  • a mirror seat and a lens seat are provided inside the housing, and bayonets matching the mirror or lens assembly are provided on the mirror seat and the lens seat, and the bayonets are connected with the shell There is a gap between the bodies.
  • a guideway is provided on the inner wall of the housing, one end of the guideway faces the air inlet, and the other end faces the LED light source.
  • the lens assembly includes a display screen, a filter and a lens, and there are two lenses, which are symmetrically distributed on the outside of the display screen and the filter, and there is a channel for gas flow between the display screen, the lens and the filter .
  • the heat sink includes a heat absorbing plate, a heat pipe connected to the heat absorbing plate, and a plurality of fins connected to the heat pipe, the plurality of fins are arranged side by side, and the heat absorbing plate is fixed to the LED light source connected.
  • a dust-proof net is further arranged between the exhaust fan and the casing.
  • the surface of the air inlet is covered with an isolation net, and the isolation net is provided with a plurality of micro holes.
  • the projector provided by the utility model has a circulating heat dissipation device.
  • the exhaust fan draws the external air into the housing of the projector from the air inlet, and first passes through the blocking of the reflector to change the flow direction of the air, so that The cold air moves toward the side of the LED light source and lens assembly. Due to the existence of the gap, the air flow will not have any impact. After passing through the LED light source and lens assembly, the air will dissipate heat from the exhaust fan to the radiator, while the heat dissipation
  • the heat absorbing plate of the device is electrically connected with the LED light source, so that the heat generated by the LED light source is transferred to the fins through the heat pipe, thereby achieving the effect of further heat dissipation.
  • Fig. 1 is the main structure diagram of the utility model
  • Fig. 2 is the internal structure figure of the utility model
  • Fig. 3 is a partial structural diagram of the utility model.
  • the utility model provides a kind of projector with circulating heat dissipation device, comprises casing 1, exhaust fan 2 and radiator 3, and casing 1 is hollow structure, and casing 1 is provided with LED light source 5, lens assembly 6 and reflector 7, the lens 4 is fixedly installed on the outside of the housing 1, the exhaust fan 2 and the radiator 3 are attached to the housing 1, and are located on the same side as the lens 4; the exhaust fan 2 is arranged on the radiator 3 and the housing 1 Between, one side of the housing 1 is provided with an air inlet 11, and the air inlet 11 is located at the rear end of the reflector 7; when the exhaust fan 2 is working, the air is sucked in from the air inlet 11, and the heat is driven to the radiator 3 after passing through the lens assembly 6 to dissipate the heat.
  • the air inlet and the exhaust fan are arranged on both sides of the casing, so that the air passes through the inside of the casing, thereby dissipating the heat inside the casing to the outside; the exhaust fan drives the air to act on the radiator,
  • the air inlet is set on the rear side of the reflector, and the reflector is used to change the flow direction of the air entering the shell, so that the cold air can better interact with the heat. Air, which carries heat away from the outside of the case.
  • the LED light source 5 and the lens 4 are arranged on two mutually perpendicular planes of the housing 1, the rear end of the lens 4 is provided with a reflector 7, and the two ends of the reflector 7 are fixed on the inside of the housing 1; the light of the LED light source 5 passes through After passing through the lens assembly 6, it is reflected by the reflector 7 and then emitted from the lens.
  • the LED light source and the lens are arranged at different positions, and cooperate with the reflector to reduce the volume of the projector to a certain extent.
  • An exhaust fan and a radiator are installed on one side of the lens to better dissipate the heat inside the housing.
  • the interior of the housing 1 is provided with a mirror holder 12 and a lens holder 13, and the mirror holder 12 and the lens holder 13 are provided with bayonets that are compatible with the mirror or lens assembly. gap.
  • a gap is provided to effectively realize the flow of air, so that the air moves along the gap, thereby realizing the internal flow of the air.
  • An introduction channel 14 is provided on the inner wall of the housing 1 , one end of the introduction channel 14 faces the air inlet 11 , and the other end faces the LED light source 5 .
  • an introduction channel can be provided inside the housing, so that the air entering from the air inlet directly acts on the position of the LED light source, increasing the amount of air flow acting on the surface of the LED light source, thereby being able to target the LED light source. For faster heat dissipation.
  • the lens assembly 6 includes a display screen, a filter and a lens. There are two lenses, which are symmetrically distributed on the outside of the display screen and the filter. There is a channel for gas flow between the display screen, the lens and the filter. In this embodiment, channels are provided between the lens components, so that air can flow and heat can be dissipated quickly.
  • the radiator 3 includes a heat absorbing plate 33, a heat pipe 32 connected to the heat absorbing plate 33, and a plurality of fins 31 connected to the heat pipe 32.
  • the plurality of fins 31 are arranged side by side, and the heat absorbing plate 33 is fixed to the LED light source 5. connected.
  • the heat absorbing plate is arranged on the outer side of the LED light source, thereby absorbing the heat generated by the LED light source externally, and transferring it to the fins through the heat pipe to ensure that the temperature of the LED light source is at a lower level; and the radiator
  • the fins correspond to the exhaust fan, and the fins can effectively protect the exhaust fan to ensure that the exhaust fan blades will not be affected by external factors.
  • a dust-proof net 21 is also arranged between the exhaust fan 2 and the housing 1; the surface of the air inlet 11 is covered with an isolation net, and a plurality of micro holes are arranged on the isolation net.
  • the dust-proof net and the isolation net are provided, which can effectively prevent large-diameter foreign objects from entering the housing, thereby affecting the use of the entire projector.

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

Abstract

A projector with a cyclic heat sink, comprising a housing (1), an exhaust fan (2), and a heat sink (3), the housing (1) being a hollow structure, the housing (1) being internally provided with an LED light source (5), a lens assembly (6), and a reflector (7), a lens (4) being fixedly mounted on the outer side of the housing (1), and the exhaust fan (2) and the heat sink (3) being attached to the housing (1) and positioned on the same side as the lens (4); the exhaust fan (2) is arranged between the heat sink (3) and the housing (1), one side of the housing (1) being provided with an air inlet (11), and the air inlet (11) being positioned at the rear end of the reflector (7); during operation, the exhaust fan (2) sucks air from the air inlet (11), which drives heat to the heat sink (3) after passing through the lens assembly (6), thereby dissipating heat. Cyclic heat dissipation is implemented by means of the arrangement of the air inlet (11) and the exhaust fan (2), enabling the heat inside the projector to be quickly dissipated into the air.

Description

具有循环散热装置的投影仪Projectors with recirculating heat sinks 技术领域technical field
本实用新型涉及投影仪技术领域，尤其涉及一种具有循环散热装置的投影仪。The utility model relates to the technical field of projectors, in particular to a projector with a circulation cooling device.
背景技术Background technique
目前市面上投影仪的散热主要是风扇单抽或单吹的方式。其中，单抽方式指的是风扇只抽取投影仪内部的热风，然后排至投影仪外面。这种散热方式存在以下缺陷：(一)、因投影仪里面设置有结构件和电路板等障碍物，需加大风扇 的风力才能进行有效散热，会使风扇产生一定的机械噪音，影响投影仪的用户体验效果； (二)、风扇的抽力加大时会产生高温，风扇长期处于高温环境中工作，会大大降低其使用寿命。At present, the heat dissipation of projectors on the market is mainly in the form of single-drawing or single-blowing fans. Among them, the single-extraction method refers to that the fan only extracts the hot air inside the projector, and then exhausts it to the outside of the projector. This heat dissipation method has the following defects: (1), because the projector is provided with obstacles such as structural parts and circuit boards, it is necessary to increase the wind power of the fan to effectively dissipate heat, which will cause the fan to produce certain mechanical noise and affect the projector. (2) When the suction force of the fan is increased, it will generate high temperature, and the fan will work in a high temperature environment for a long time, which will greatly reduce its service life.
单吹方式指的是风扇对投影仪内部的散热片进行吹风处理。这种散热方式存在以下缺陷：(一)投影仪内部设置有结构件和电路板等障碍物，同样需要加大风扇的风力才能 进行有效散热，会使风扇产生一定的机械噪音，影响投影仪的用户体验效果；(二)、投影仪内部的热空气向外部流动时，会直接吹到投影仪的壳体上，部分向外流动的空气会被外壳体挡回来，从而使热空气在投影仪内部形成热循环，最终导致投影仪的内部温度升高，造成散热不良。The single blowing method refers to that the fan blows the heat sink inside the projector. This heat dissipation method has the following defects: (1) obstacles such as structural parts and circuit boards are arranged inside the projector, and it is necessary to increase the wind power of the fan to effectively dissipate heat, which will cause the fan to produce certain mechanical noise and affect the performance of the projector. User experience effect; (2), when the hot air inside the projector flows to the outside, it will be directly blown on the casing of the projector, and part of the air flowing outward will be blocked by the outer casing, so that the hot air is blown on the projector. A thermal cycle is formed inside, which eventually causes the internal temperature of the projector to rise, resulting in poor heat dissipation.
技术解决方案technical solution
针对上述技术中存在的不足之处，本实用新型提供一种具有循环散热装置的投影仪，通过在设置进风口与排风扇，从而实现循环散热，使得投影仪内部的热量能快速散发到空气中。Aiming at the deficiencies in the above-mentioned technologies, the utility model provides a projector with a circulation heat dissipation device. By setting an air inlet and an exhaust fan, the circulation heat dissipation is realized, so that the heat inside the projector can be quickly dissipated into the air.
为实现上述目的，本实用新型提供一种具有循环散热装置的投影仪，包括壳体、排风扇和散热器，所述壳体为中空结构，壳体内部设置有LED光源，透镜组件和反射镜，壳体的外侧固定安装有镜头，所述排风扇和散热器贴合设置在壳体上，与所述镜头位于同一侧；所述排风扇设置在所述散热器与所述壳体之间，所述壳体的一侧开设有进风口，所述进风口位于所述反射镜的后端；所述排风扇工作时将空气从进风口吸入，经过所述透镜组件后带动热量至散热器上，从而将热量进行散发。In order to achieve the above object, the utility model provides a projector with a circulating heat dissipation device, including a housing, an exhaust fan and a radiator. The housing is a hollow structure, and an LED light source, a lens assembly and a reflector are arranged inside the housing. A lens is fixedly installed on the outer side of the casing, and the exhaust fan and the radiator are attached to the casing on the same side as the lens; the exhaust fan is arranged between the radiator and the casing, and the One side of the casing is provided with an air inlet, and the air inlet is located at the rear end of the reflector; when the exhaust fan is working, the air is sucked in from the air inlet, and after passing through the lens assembly, the heat is transferred to the radiator, so that the The heat is dissipated.
作为优选，所述LED光源与镜头设置在所述壳体的两个相互垂直的平面上，所述镜头的后端设置所述反射镜，反射镜的两端固定在所述壳体的内侧；LED光源的光线穿过透镜组件后，经过反射镜反射后从所述镜头处射出。Preferably, the LED light source and the lens are arranged on two mutually perpendicular planes of the housing, the rear end of the lens is provided with the reflector, and the two ends of the reflector are fixed on the inner side of the housing; After the light from the LED light source passes through the lens assembly, it is reflected by the reflector and then emitted from the lens.
作为优选，所述壳体内部设置有反射镜座和透镜座，所述反射镜座和透镜座上均设置有与反射镜或透镜组件相适配的卡口，所述卡口与所述壳体之间设有间隙。As a preference, a mirror seat and a lens seat are provided inside the housing, and bayonets matching the mirror or lens assembly are provided on the mirror seat and the lens seat, and the bayonets are connected with the shell There is a gap between the bodies.
作为优选，所述壳体的内壁上设置有引道，所述引道的一端朝向进风口，另一端朝向所述LED光源。Preferably, a guideway is provided on the inner wall of the housing, one end of the guideway faces the air inlet, and the other end faces the LED light source.
作为优选，所述透镜组件包括显示屏，滤镜和透镜，所述透镜设置有两个，对称分布在显示屏和滤镜的外侧，显示屏，透镜和滤镜之间存在供气体流动的通道。Preferably, the lens assembly includes a display screen, a filter and a lens, and there are two lenses, which are symmetrically distributed on the outside of the display screen and the filter, and there is a channel for gas flow between the display screen, the lens and the filter .
作为优选，所述散热器包括吸热板、与吸热板相连接的热管、与热管相连接的多个鳍片，多个鳍片并排相间设置，所述吸热板与所述LED光源固定相连。Preferably, the heat sink includes a heat absorbing plate, a heat pipe connected to the heat absorbing plate, and a plurality of fins connected to the heat pipe, the plurality of fins are arranged side by side, and the heat absorbing plate is fixed to the LED light source connected.
作为优选，所述排风扇与所述壳体之间还设置有防尘网。Preferably, a dust-proof net is further arranged between the exhaust fan and the casing.
作为优选，所述进风口表面覆盖有隔离网，所述隔离网上设有多个微型孔洞。Preferably, the surface of the air inlet is covered with an isolation net, and the isolation net is provided with a plurality of micro holes.
有益效果Beneficial effect
与现有技术相比，本实用新型提供的具有循环散热装置的投影仪，排风扇将外部的空气从进风口抽入投影仪的壳体内，首先经过反射镜的阻挡，改变空气的流动方向，使得冷空气朝向LED光源与透镜组件一侧发生运动，由于间隙的存在，从而使得空气流动不会存在任何的影响，经过LED光源和透镜组件后，空气将热量从排风扇散发到散热器上，而散热器的吸热板与LED光源电性相连，从而将LED光源产生的热量通过热管传输到鳍片上，从而到达进一步散热的效果。Compared with the prior art, the projector provided by the utility model has a circulating heat dissipation device. The exhaust fan draws the external air into the housing of the projector from the air inlet, and first passes through the blocking of the reflector to change the flow direction of the air, so that The cold air moves toward the side of the LED light source and lens assembly. Due to the existence of the gap, the air flow will not have any impact. After passing through the LED light source and lens assembly, the air will dissipate heat from the exhaust fan to the radiator, while the heat dissipation The heat absorbing plate of the device is electrically connected with the LED light source, so that the heat generated by the LED light source is transferred to the fins through the heat pipe, thereby achieving the effect of further heat dissipation.
附图说明Description of drawings
图1为本实用新型的主体结构图；Fig. 1 is the main structure diagram of the utility model;
图2为本实用新型的内部结构图；Fig. 2 is the internal structure figure of the utility model;
图3为本实用新型的部分结构图。Fig. 3 is a partial structural diagram of the utility model.
主要元件符号说明如下：The main component symbols are explained as follows:
1.壳体 11.进风口 12.反射镜座 13.透镜座 14.引道1. Shell 11. Air inlet 12. Reflector seat 13. Lens seat 14. Approach
2.排风扇 21.防尘网2. Exhaust fan 21. Dust filter
3.散热器 31.鳍片 32.热管 33.吸热板3. Radiator 31. Fin 32. Heat pipe 33. Heat absorbing plate
4.镜头  5.LED光源  6.透镜组件 7.反射镜。4. Lens 5. LED light source 6. Lens assembly 7. Mirror.
本发明的最佳实施方式BEST MODE FOR CARRYING OUT THE INVENTION
为了更清楚地表述本实用新型，下面结合附图和实施例对本实用新型作进一步地描述，本技术领域技术人员可以理解，除非特意声明，这里使用的单数形式“一”、“一个”、“所述”和“该”也可包括复数形式。应该进一步理解的是，本申请的说明书中使用的措辞“包括”是指存在所述特征、整数、步骤、操作、元件和/或组件，但是并不排除存在或添加一个或多个其他特征、整数、步骤、操作、元件、组件和/或它们的组。应该理解，这里使用的措辞“和/或”包括一个或更多个相关联的列出项的全部或任一单元和全部组合。In order to describe the utility model more clearly, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. Those skilled in the art can understand that unless otherwise stated, the singular forms "one", "one", and " Said and "the" may also include plural forms. It should be further understood that the word "comprising" used in the specification of the present application refers to the presence of the features, integers, steps, operations, elements and/or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and/or groups thereof. It should be understood that the expression "and/or" used herein includes all or any element and all combinations of one or more associated listed items.
本技术领域技术人员可以理解，除非另外定义，这里使用的所有术语（包括技术术语和科学术语），具有与本申请所属领域中的普通技术人员的一般理解相同的意义。还应该理解的是，诸如通用字典中定义的那些术语，应该被理解为具有与现有技术的上下文中的意义一致的意义，并且除非像这里一样被特定定义，否则不会用理想化或过于正式的含义来解释。Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meanings as commonly understood by those of ordinary skill in the art to which this application belongs. It should also be understood that terms, such as those defined in commonly used dictionaries, should be understood to have meanings consistent with their meaning in the context of the prior art, and unless specifically defined as herein, are not intended to be idealized or overly Formal meaning to explain.
请参阅图1，本实用新型提供一种具有循环散热装置的投影仪，包括壳体1、排风扇2和散热器3，壳体1为中空结构，壳体1内部设置有LED光源5，透镜组件6和反射镜7，壳体1的外侧固定安装有镜头4，排风扇2和散热器3贴合设置在壳体1上，与镜头4位于同一侧；排风扇2设置在散热器3与壳体1之间，壳体1的一侧开设有进风口11，进风口11位于反射镜7的后端；排风扇2工作时将空气从进风口11吸入，经过透镜组件6后带动热量至散热器3上，从而将热量进行散发。在本实施例中，将进风口和排气扇设置在壳体的两侧，使得空气穿过壳体内部，从而将位于壳体内部的热量散发到外界；排风扇带动空气作用于散热器上，从而对这些热量进行有效的散发到空气中去，而进风口设置在反射镜的后侧，利用反射镜对进入壳体内部的空气进行流动方向的改变，从而使得冷空气能更好作用与热空气，将热量带出壳体外部。Please refer to Fig. 1, the utility model provides a kind of projector with circulating heat dissipation device, comprises casing 1, exhaust fan 2 and radiator 3, and casing 1 is hollow structure, and casing 1 is provided with LED light source 5, lens assembly 6 and reflector 7, the lens 4 is fixedly installed on the outside of the housing 1, the exhaust fan 2 and the radiator 3 are attached to the housing 1, and are located on the same side as the lens 4; the exhaust fan 2 is arranged on the radiator 3 and the housing 1 Between, one side of the housing 1 is provided with an air inlet 11, and the air inlet 11 is located at the rear end of the reflector 7; when the exhaust fan 2 is working, the air is sucked in from the air inlet 11, and the heat is driven to the radiator 3 after passing through the lens assembly 6 to dissipate the heat. In this embodiment, the air inlet and the exhaust fan are arranged on both sides of the casing, so that the air passes through the inside of the casing, thereby dissipating the heat inside the casing to the outside; the exhaust fan drives the air to act on the radiator, In order to effectively dissipate the heat into the air, and the air inlet is set on the rear side of the reflector, and the reflector is used to change the flow direction of the air entering the shell, so that the cold air can better interact with the heat. Air, which carries heat away from the outside of the case.
LED光源5与镜头4设置在壳体1的两个相互垂直的平面上，镜头4的后端设置反射镜7，反射镜7的两端固定在壳体1的内侧；LED光源5的光线穿过透镜组件6后，经过反射镜7反射后从镜头处射出，在本实施例中，LED光源和镜头设置在不同的位置，配合反光镜，实现对投影仪的体积进行一定程度的缩小，同时在镜头的一侧设置排风扇和散热器，从而更好对位于壳体内部的热量进行散发。The LED light source 5 and the lens 4 are arranged on two mutually perpendicular planes of the housing 1, the rear end of the lens 4 is provided with a reflector 7, and the two ends of the reflector 7 are fixed on the inside of the housing 1; the light of the LED light source 5 passes through After passing through the lens assembly 6, it is reflected by the reflector 7 and then emitted from the lens. In this embodiment, the LED light source and the lens are arranged at different positions, and cooperate with the reflector to reduce the volume of the projector to a certain extent. An exhaust fan and a radiator are installed on one side of the lens to better dissipate the heat inside the housing.
壳体1内部设置有反射镜座12和透镜座13，反射镜座12和透镜座13上均设置有与反射镜或透镜组件相适配的卡口，卡口与壳体1之间设有间隙。在本实施例中，设置有间隙，可以有效实现空气的流动，使得空气沿着该间隙进行运动，从而实现空气的内部流动。The interior of the housing 1 is provided with a mirror holder 12 and a lens holder 13, and the mirror holder 12 and the lens holder 13 are provided with bayonets that are compatible with the mirror or lens assembly. gap. In this embodiment, a gap is provided to effectively realize the flow of air, so that the air moves along the gap, thereby realizing the internal flow of the air.
壳体1的内壁上设置有引道14，引道14的一端朝向进风口11，另一端朝向LED光源5。在具体实施过程中，可以在壳体的内部设置有引道，从而使得从进风口进入的空气直接作用在LED光源位置，增大了作用于LED光源表面的空气流动量，从而能针对LED光源进行更快速的散热。An introduction channel 14 is provided on the inner wall of the housing 1 , one end of the introduction channel 14 faces the air inlet 11 , and the other end faces the LED light source 5 . In the specific implementation process, an introduction channel can be provided inside the housing, so that the air entering from the air inlet directly acts on the position of the LED light source, increasing the amount of air flow acting on the surface of the LED light source, thereby being able to target the LED light source. For faster heat dissipation.
透镜组件6包括显示屏，滤镜和透镜，透镜设置有两个，对称分布在显示屏和滤镜的外侧，显示屏，透镜和滤镜之间存在供气体流动的通道。在本实施例中，透镜组件之间设置有通道，从而使得空气能发生流动，将热量快速散发。The lens assembly 6 includes a display screen, a filter and a lens. There are two lenses, which are symmetrically distributed on the outside of the display screen and the filter. There is a channel for gas flow between the display screen, the lens and the filter. In this embodiment, channels are provided between the lens components, so that air can flow and heat can be dissipated quickly.
散热器3包括吸热板33、与吸热板33相连接的热管32、与热管32相连接的多个鳍片31，多个鳍片31并排相间设置，吸热板33与LED光源5固定相连。在本实施例中，吸热板设置在LED光源的外侧位置，从而在外部对LED光源产生的热量进行吸收，通过热管传输到鳍片上，保证LED光源的处于温度较低的水平；而散热器的鳍片与排风扇相对应，鳍片能有效对排风扇进行防护，确保排风扇叶不会受到外部因素的影响。 The radiator 3 includes a heat absorbing plate 33, a heat pipe 32 connected to the heat absorbing plate 33, and a plurality of fins 31 connected to the heat pipe 32. The plurality of fins 31 are arranged side by side, and the heat absorbing plate 33 is fixed to the LED light source 5. connected. In this embodiment, the heat absorbing plate is arranged on the outer side of the LED light source, thereby absorbing the heat generated by the LED light source externally, and transferring it to the fins through the heat pipe to ensure that the temperature of the LED light source is at a lower level; and the radiator The fins correspond to the exhaust fan, and the fins can effectively protect the exhaust fan to ensure that the exhaust fan blades will not be affected by external factors.
排风扇2与壳体1之间还设置有防尘网21；进风口11表面覆盖有隔离网，隔离网上设有多个微型孔洞。在本实施例中，设置防尘网和隔离网，能有效防止大尺径异物进入到壳体内部，从而影响整个投影仪的使用。A dust-proof net 21 is also arranged between the exhaust fan 2 and the housing 1; the surface of the air inlet 11 is covered with an isolation net, and a plurality of micro holes are arranged on the isolation net. In this embodiment, the dust-proof net and the isolation net are provided, which can effectively prevent large-diameter foreign objects from entering the housing, thereby affecting the use of the entire projector.
以上公开的仅为本实用新型的几个具体实施例，但是本实用新型并非局限于此，任何本领域的技术人员能思之的变化都应落入本实用新型的保护范围。The above disclosures are only a few specific embodiments of the utility model, but the utility model is not limited thereto, and any changes conceivable by those skilled in the art should fall within the protection scope of the utility model.

Claims (8)

  1. 一种具有循环散热装置的投影仪，其特征在于，包括壳体、排风扇和散热器，所述壳体为中空结构，壳体内部设置有LED光源，透镜组件和反射镜，壳体的外侧固定安装有镜头，所述排风扇和散热器贴合设置在壳体上，与所述镜头位于同一侧；所述排风扇设置在所述散热器与所述壳体之间，所述壳体的一侧开设有进风口，所述进风口位于所述反射镜的后端；所述排风扇工作时将空气从进风口吸入，经过所述透镜组件后带动热量至散热器上，从而将热量进行散发。A projector with a circulating heat dissipation device is characterized in that it includes a housing, an exhaust fan and a radiator, the housing is a hollow structure, an LED light source, a lens assembly and a reflector are arranged inside the housing, and the outer side of the housing is fixed A lens is installed, and the exhaust fan and the heat sink are attached to the housing and are located on the same side as the lens; the exhaust fan is disposed between the heat sink and the housing, and one side of the housing An air inlet is provided, and the air inlet is located at the rear end of the reflector; when the exhaust fan is working, the air is sucked in from the air inlet, and after passing through the lens assembly, the heat is driven to the radiator, thereby dissipating the heat.
  2. 根据权利要求1所述的具有循环散热装置的投影仪，其特征在于，所述LED光源与镜头设置在所述壳体的两个相互垂直的平面上，所述镜头的后端设置所述反射镜，反射镜的两端固定在所述壳体的内侧；LED光源的光线穿过透镜组件后，经过反射镜反射后从所述镜头处射出。The projector with a circulating heat dissipation device according to claim 1, wherein the LED light source and the lens are arranged on two mutually perpendicular planes of the housing, and the rear end of the lens is provided with the reflector The two ends of the reflector are fixed on the inner side of the housing; the light from the LED light source passes through the lens assembly, is reflected by the reflector, and then exits the lens.
  3. 根据权利要求1所述的具有循环散热装置的投影仪，其特征在于，所述壳体内部设置有反射镜座和透镜座，所述反射镜座和透镜座上均设置有与反射镜或透镜组件相适配的卡口，所述卡口与所述壳体之间设有间隙。The projector with a circulating heat dissipation device according to claim 1, wherein a reflector seat and a lens seat are arranged inside the housing, and the reflector seat and the lens seat are all provided with reflectors or lenses. A bayonet that fits the assembly, and a gap is provided between the bayonet and the housing.
  4. 根据权利要求1所述的具有循环散热装置的投影仪，其特征在于，所述壳体的内壁上设置有引道，所述引道的一端朝向进风口，另一端朝向所述LED光源。The projector with a circulating heat dissipation device according to claim 1, wherein an introduction path is provided on the inner wall of the housing, one end of the introduction path faces the air inlet, and the other end faces the LED light source.
  5. 根据权利要求1所述的具有循环散热装置的投影仪，其特征在于，所述透镜组件包括显示屏，滤镜和透镜，所述透镜设置有两个，对称分布在显示屏和滤镜的外侧，显示屏，透镜和滤镜之间存在供气体流动的通道。The projector with a circulating heat dissipation device according to claim 1, wherein the lens assembly includes a display screen, a filter and a lens, and there are two lenses, which are symmetrically distributed on the outside of the display screen and the filter , there are channels for gas flow between the display screen, lenses and filters.
  6. 根据权利要求1所述的具有循环散热装置的投影仪，其特征在于，所述散热器包括吸热板、与吸热板相连接的热管、与热管相连接的多个鳍片，多个鳍片并排相间设置，所述吸热板与所述LED光源固定相连。The projector with a circulating heat dissipation device according to claim 1, wherein the radiator comprises a heat absorbing plate, a heat pipe connected to the heat absorbing plate, a plurality of fins connected to the heat pipe, and a plurality of fins The plates are arranged side by side and alternately, and the heat absorbing plate is fixedly connected with the LED light source.
  7. 根据权利要求1所述的具有循环散热装置的投影仪，其特征在于，所述排风扇与所述壳体之间还设置有防尘网。The projector with a circulating heat dissipation device according to claim 1, wherein a dust-proof net is further arranged between the exhaust fan and the housing.
  8. 根据权利要求1所述的具有循环散热装置的投影仪，其特征在于，所述进风口表面覆盖有隔离网，所述隔离网上设有多个微型孔洞。The projector with a circulating heat dissipation device according to claim 1, wherein the surface of the air inlet is covered with an isolation net, and the isolation net is provided with a plurality of micro-holes.
PCT/CN2021/114047 2021-07-26 2021-08-23 Projector with cyclic heat sink WO2023004906A1 (en)

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Publication number Priority date Publication date Assignee Title
US20090141249A1 (en) * 2007-11-29 2009-06-04 Seiko Epson Corporation Projector
JP2016103009A (en) * 2014-11-18 2016-06-02 キヤノン株式会社 Image display device
CN109068115A (en) * 2018-09-26 2018-12-21 兴光谱科技成都有限公司 A kind of novel projector structure
CN109459905A (en) * 2018-12-27 2019-03-12 徐逸 A kind of New type LCD projector
CN211427020U (en) * 2019-12-20 2020-09-04 北京四达时代软件技术股份有限公司 Projector beneficial to heat dissipation
CN211979402U (en) * 2020-06-12 2020-11-20 广州瑞格尔电子有限公司 Vertical projector

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090141249A1 (en) * 2007-11-29 2009-06-04 Seiko Epson Corporation Projector
JP2016103009A (en) * 2014-11-18 2016-06-02 キヤノン株式会社 Image display device
CN109068115A (en) * 2018-09-26 2018-12-21 兴光谱科技成都有限公司 A kind of novel projector structure
CN109459905A (en) * 2018-12-27 2019-03-12 徐逸 A kind of New type LCD projector
CN211427020U (en) * 2019-12-20 2020-09-04 北京四达时代软件技术股份有限公司 Projector beneficial to heat dissipation
CN211979402U (en) * 2020-06-12 2020-11-20 广州瑞格尔电子有限公司 Vertical projector

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