WO2022088772A1 - 光源组件、投影仪光机和投影仪 - Google Patents

光源组件、投影仪光机和投影仪 Download PDF

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Publication number
WO2022088772A1
WO2022088772A1 PCT/CN2021/107043 CN2021107043W WO2022088772A1 WO 2022088772 A1 WO2022088772 A1 WO 2022088772A1 CN 2021107043 W CN2021107043 W CN 2021107043W WO 2022088772 A1 WO2022088772 A1 WO 2022088772A1
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Prior art keywords
light source
heat
source module
soaking plate
plate
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PCT/CN2021/107043
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English (en)
French (fr)
Inventor
郑健
屈珅
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成都极米科技股份有限公司
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Publication of WO2022088772A1 publication Critical patent/WO2022088772A1/zh

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    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/14Details
    • G03B21/16Cooling; Preventing overheating

Definitions

  • the purpose of the present invention is to provide a light source assembly, a projector optical machine and a projector, which can achieve better heat dissipation and help reduce or avoid overheating of the light source.
  • an embodiment of the present invention provides a light source assembly, the light source assembly includes a heat soaking plate and at least one light source module, the at least one light source module is all disposed on the heat soaking plate, and the heat soaking plate uses It is connected to the heat sink of the projector's optical engine. Through the heat soaking plate, the heat in the working process of the light source module can be uniformly transferred to the heat sink, which is beneficial to improve the heat conduction efficiency and the heat dissipation effect of the light source module.
  • the light source module includes a light-emitting body and a circuit board, the light-emitting body is connected to the circuit board;
  • the circuit board is arranged on the first casing, and the second casing is used for connecting with the heat sink.
  • the circuit board and the heat sink are located on opposite sides of the vapor chamber, which can further ensure that the heat in the vapor chamber is basically uniform, thereby further ensuring the heat transfer efficiency and heat dissipation effect.
  • the circuit board is integrally formed with the first casing, and a circuit electrically connected to the light-emitting body is provided on the first casing.
  • the heat transfer paths are sequentially: illuminant, vapor chamber (first casing (circuit board), internal structure of the vapor chamber, second casing), heat sink, and then the fan dissipates heat from the heat sink.
  • the heat transfer efficiency is higher and the heat dissipation effect is better.
  • a plurality of the heat-spreading plates includes a first heat-spreading plate and a second heat-spreading plate
  • the light source module includes a first light source module and a second light source module
  • the first light source module is provided with On the first soaking plate
  • the second light source module is disposed on the second soaking plate, and both the first soaking plate and the second soaking plate are used for connecting with the heat sink.
  • a plurality of the vapor chambers include a first vapor chamber, a second vapor chamber, and a third vapor chamber, the first vapor chamber and the third vapor chamber Opposite;
  • the light source module includes a first light source module, a second light source module and a third light source module, the first light source module is arranged on the first soaking plate, and the second light source module is arranged on the second light source module a soaking plate, the third light source module is disposed on the third soaking plate, the first soaking plate, the second soaking plate and the third soaking plate are all used for heat dissipation with the heat dissipation slice connection.
  • the at least one light source module includes a plurality of light source modules
  • the light source assembly further includes a dichroic plate, and the reflective surface of the dichroic plate and the light emitted by the plurality of light source modules It is arranged at an included angle and is used to adjust the optical paths of the plurality of light source modules;
  • the soaking plate has an installation surface, the plurality of light source modules are all arranged on the installation surface, and the installation surface is flat.
  • an embodiment of the present invention provides an optical machine for a projector, including a fan, a heat sink, and the light source assembly according to any one of the foregoing embodiments, the heat sink is connected to the soaking plate, and the A fan is opposite the fins for passing gas through the fins.
  • an embodiment of the present invention provides a projector, including the projector optical machine as described in the foregoing embodiments.
  • the projector further includes a heat dissipation plate, and the heat dissipation plate is connected to the vapor chamber.
  • the heat transfer paths of the light source module are sequentially: the light source module, the heat soaking plate, and the heat sink, and the heat of the heat sink is taken away in the form of airflow through the fan, so as to realize the heat dissipation of the light source.
  • the heat transfer paths are: light source, heat-conducting copper block, heat pipe, and fins, and the heat of the fan fins is carried away in the form of airflow to realize heat dissipation of the light source.
  • the embodiment of the present invention has more efficient heat conduction efficiency, and the vapor chamber can make the heat on the vapor chamber substantially uniform, and then transfer the heat of the vapor chamber to the heat sink through the heat sink.
  • the embodiment of the present invention has better heat dissipation effect, which is beneficial to reduce or avoid overheating of the light source.
  • FIG. 1 is a schematic structural diagram of a projector optical machine provided by an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a third arrangement of light sources and soaking plates according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a fifth arrangement of light sources and soaking plates according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a sixth arrangement of light sources and soaking plates according to an embodiment of the present invention.
  • Icons 100-projector optical machine; 110-fan; 120-heat sink; 121-first heat dissipation part; 122-second heat dissipation part; 123-third heat dissipation part; 130-light source assembly; 131-heating plate; 1311-first shell; 1312-second shell; 1313-first soaking plate; 1314-second soaking plate; 1315-third soaking plate; 132-light source module; 1321-illuminator; 1322- circuit board; 1323-first light source module; 1324-second light source module; 1325-third light source module; 133-dichroic plate; 134-specular reflector.
  • horizontal does not imply that a component is required to be absolutely horizontal or overhang, but rather may be slightly inclined.
  • horizontal only means that its direction is more horizontal than “vertical”, it does not mean that the structure must be completely horizontal, but can be slightly inclined.
  • the projector optical machine 100 includes a fan 110, a heat sink 120, and a light source assembly 130, wherein the light source assembly 130 may include a soaking plate 131 and at least one light source module 132, and at least one light source module 132 is provided with On the heat-spreading plate 131 , the heat-spreading plate 131 is connected with the heat sink 120 , and the fan 110 is used to make the air flow through the heat sink 120 , so as to take away the heat on the heat sink 120 .
  • the light source module 132 works and generates heat.
  • the light source module 132 is disposed on the heat-spreading plate 131 , and the heat generated by the light source module 132 is then transferred to the heat-spreading plate 131 , and then transferred to the heat sink 120 through the heat-spreading plate 131 .
  • the fan 110 can take away the heat transferred to the heat sink 120 in the form of airflow.
  • the heat-conducting efficiency of the heat-spreading plate 131 is good, and the heat can be well diffused into the entire structure of the heat-spreading plate 131, thereby achieving better heat dissipation.
  • the heat generated during operation is concentrated on the heat-spreading plate 131 that is in direct contact with the light source module 132, and the heat-spreading plate 131 can transfer the heat from this part to other parts of the heat-spreading plate 131, That is, the heat soaking plate 131 can quickly dissipate the heat from the contact part with the light source module 132 to other parts, so as to realize the heat dissipation of the contact part between the heat soaking plate 131 and the light source module 132 , and also realize the heat dissipation of the light source module 132 .
  • the heat sink 120 is connected to the vapor chamber 131 , and the heat of the vapor chamber 131 is further transferred to the heat sink 120 ;
  • the light source of the projector optical machine 100 transmits heat to the heat pipe (or the heat conducting copper pipe) through the heat conducting copper block, the heat pipe is connected with the heat dissipation fins, and the heat on the fins is taken away by the fan 110 .
  • the heat transfer paths are: light source, thermally conductive copper block, heat pipe, and fins, and the heat from the fins of the fan 110 is carried away in the form of airflow to realize heat dissipation of the light source.
  • the heat pipe (or the heat-conducting copper pipe) is generally in the shape of a round tube, the contact area between the heat pipe and the heat-conducting copper block is small, and the contact parts of the two are connected by a heat-conducting material, so that the The heat transfer effect is greatly affected.
  • the round tube can be machined into an oblate shape or a specific part can be machined into a flat surface to increase the contact area with the thermally conductive copper block and improve heat transfer, the actual joint between the thermally conductive copper block and the heat pipe is still There is a large thermal resistance.
  • the light source module 132 may be a red light module, a green light module, a blue light module, etc., correspondingly emitting red light, green light, blue light, and the like.
  • R represents the red light module
  • G represents the green light module
  • B represents the blue light module
  • Bp represents the blue pumping blue light excitation, which is used to improve the brightness.
  • the light source assembly 130 includes a heat soaking plate 131 and at least one light source module 132 , and the light source module 132 is disposed on the heat soaking plate 131 .
  • the heat generated by the light source module 132 can be transferred through the heat soaking plate 131, which is beneficial to improve the heat dissipation efficiency of the light source module 132 and improve its heat dissipation effect.
  • the light source module 132 may include a luminous body 1321 and a circuit board 1322 , and the luminous body 1321 is connected to the circuit board 1322 ; please refer to FIG. 3 , the vapor chamber 131 has an opposite first housing 1311 and the second casing 1312, the circuit board 1322 is arranged on the first casing 1311, and the second casing 1312 is used for connecting with the heat sink 120.
  • the light-emitting body 1321 can be an LED.
  • the circuit board 1322 can be a copper pole piece, a circuit is set on the copper pole piece, the LED is electrically connected to the circuit, and the controller of the projector can control the working state of the LED, which includes but is not limited to: the LED is turned on and off , brightness, etc.
  • the second housing 1312 is provided with heat sinks 120 .
  • the heat sink 120 may also be integrally formed with the heat soaking plate 131 , and the setting method includes, but is not limited to, welding or integral molding of the heat sink 120 and the second housing 1312 .
  • the heat transfer paths are in sequence: the illuminator 1321, the soaking plate 131 (the first casing 1311 (circuit board 1322), the internal structure of the soaking plate 131, the second casing body 1312, heat sink 120), and then take away heat through the fan 110.
  • the heat transfer efficiency is higher and the heat dissipation effect is better.
  • the light source assembly 130 may further include a specular reflection plate 134, and the arrangement of the dichroic plate 133 and the arrangement of the specular reflection plate 134 can be
  • the light emitted by the light source module 132 is collected on a digital micromirror device (DMD, Digital Micromirror Device) of the projector optical machine 100 for imaging.
  • DMD Digital Micromirror Device
  • the heat dissipation fin 120 includes a first heat dissipation part 121 and a second heat dissipation part 122, wherein the first heat dissipation part 121 is connected with the first heat dissipation plate 1313, and the second heat dissipation part 122 is connected with the second heat dissipation plate 1314 is connected, and the heat of the first heat dissipation part 121 and the second heat dissipation part 122 is taken away by the fan 110 .
  • the third soaking plate 1315 is opposite; the light source module 132 includes a first light source module 1323, a second light source module 1324 and a third light source module 1325, the first light source module 1323 is disposed on the first soaking plate 1313, and the second light source module 1324 is disposed On the second soaking plate 1314 , the third light source module 1325 is disposed on the third soaking plate 1315 , and the first soaking plate 1313 , the second soaking plate 1314 and the third soaking plate 1315 are all used for connecting with the heat sink 120 .
  • the heat dissipation plate 131 is used to realize the heat dissipation of the plurality of light source modules 132 .
  • the arrangement of the plurality of heat-spreading plates can realize good heat dissipation by using the heat-spreading plates 131 on the basis of the layout of the existing light source modules 132 .
  • the arrangement of the light source modules 132 described above in FIGS. 5 to 9 is only an example, and the embodiment of the present invention can achieve good heat dissipation of the light source modules 132 in various arrangements, including but not limited to the above arrangement.
  • the soaking plate 131 has an installation surface, and the plurality of light source modules 132 are all disposed on the installation surface, and the installation surface is flat.
  • the multiple light source modules 132 can be arranged in a line, that is, the heating surfaces of the multiple light source modules 132 are on the same plane. When the multiple light source modules 132 are working, the heat can be transferred to the soaking plate 131 synchronously, so as to achieve better performance. heat conduction effect.
  • the circuit board 1322 of the light source module 132 is integrally provided with the first housing 1311
  • the heat sink 120 is integrally provided with the second housing 1312 .
  • the circuit board 1322 of the light source module 132 is integrated with the first casing 1311, which can improve the thermal conductivity of the circuit board 1322 and the first casing 1311; Thermal conductivity between the body 1312 and the heat sink 120 . That is to say, in this embodiment, the efficiency of heat transfer is higher, which is more conducive to the heat dissipation of the light source module 132 .
  • the circuit board 1322 is integrally formed with the first casing 1311
  • the heat sink 120 is integrally formed with the second casing 1312 .
  • the circuit board 1322 is integrally formed with the first casing 1311, and a circuit can be provided on the first casing 1311, and the circuit is electrically connected to the light-emitting body 1321 (LED, etc.).
  • the heat generated by the light-emitting body 1321 during operation can be directly transferred to the first casing 1311, thereby improving the heat transfer efficiency.
  • the heat sink 120 is integrally formed with the second casing 1312 , that is, the heat sink 120 is disposed on the second casing 1312 of the vapor chamber 131 .
  • Embodiments of the present invention provide a projector including the above projector optical engine 100, the projector has good heat dissipation effect, which is beneficial to avoid or reduce overheating of the projector optical engine 100, thereby improving user experience and product service life.
  • the projector may also include a heat dissipation plate, which is connected to the soaking plate 131 for transferring the heat on the soaking plate 131 to the heat dissipation plate, which is beneficial to improve the heat dissipation effect of the light source and further avoid or reduce the light source. overheat.
  • the projector optical engine 100 includes a fan 110 , a heat sink 120 and a light source assembly 130 , the light source assembly 130 It includes a heat soaking plate 131 and at least one light source module 132 , and the light source module 132 is disposed on the heat soaking plate 131 .
  • the heat-dissipating plate 131 has good thermal conductivity, and can well diffuse heat into the entire structure of the heat-spreading plate 131, thereby achieving better heat dissipation.
  • the heat transfer paths of the light source module 132 are sequentially: the light source module 132 , the heat soaking plate 131 , and the heat sink 120 , and the heat of the heat sink 120 is taken away by the fan 110 in the form of airflow, so as to realize the light source. of heat dissipation.
  • the heat transfer paths are: light source, thermally conductive copper block, heat pipe, and fins, and the heat from the fins of the fan 110 is carried away in the form of airflow to realize heat dissipation of the light source.
  • the embodiment of the present invention has more efficient heat conduction efficiency, and the vapor chamber 131 can make the heat on the vapor chamber 131 substantially uniform, and then the heat of the vapor chamber 131 is transferred to the heat sink 131 through the heat sink 120 .
  • Heat sink 120 Compared with the above-mentioned prior art, the embodiment of the present invention has better heat dissipation effect, which is beneficial to reduce or avoid overheating of the light source.

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Abstract

一种光源组件(130)、投影仪光机(100)和投影仪,涉及投影仪领域。光源组件(130)包括均热板(131)和至少一个光源模块(132),至少一个光源模块(132)均设置于均热板(131)上,均热板(131)用于与投影仪光机(100)的散热片(120)连接。投影仪光机(100),包括风扇(110)、散热片(120)和光源组件(130),散热片(120)与均热板(131)连接,风扇(110)与散热片(120)相对,用于使气体流经散热片(120)。投影仪包括投影仪光机(100),能够实现更好的散热。

Description

光源组件、投影仪光机和投影仪 技术领域
本发明涉及投影仪领域,具体而言,涉及一种光源组件、投影仪光机和投影仪。
背景技术
投影仪光机的光源可以为LED或者激光,光源在工作时会产生较多的热量,光源过热会导致光衰现象,甚至烧坏光源。光机的常规散热是利用导热铜块将热量导给热管,热管再与散热鳍片相连,风扇对着鳍片吹风,依靠气流带走热量。但是该散热方式的散热效果不好。
发明内容
本发明的目的在于提供一种光源组件、投影仪光机和投影仪,其能够实现更好的散热,有利于减少或避免光源过热。
本发明的实施例是这样实现的:
第一方面,本发明实施例提供一种光源组件,所述光源组件包括均热板和至少一个光源模块,所述至少一个光源模块均设置于所述均热板上,所述均热板用于与投影仪光机的散热片连接。通过均热板能够将光源模块工作过程中的热量均匀地传递至散热片,有利于提高热量传导效率、提升光源模块的散热效果。
在可选的实施方式中,所述光源模块包括发光体和电路板,所述发光体与所述电路板连接;所述均热板具有相对的第一壳体和第二壳体,所述电路板设置于所述第一壳体上,所述第二壳体用于与所述散热片连接。电路板和散热片位于均热板相对的两侧,能够进一步确保均热板内热量基本 均匀,从而进一步保证热量传递效率和散热效果。
在可选的实施方式中,所述电路板与所述第一壳体一体成型,且所述第一壳体上设置有与所述发光体电连接的电路。此时热量传递路径依次为:发光体、均热板(第一壳体(电路板)、均热板内部结构、第二壳体)、散热片,再通过风扇对散热片散热。在该实施例中,热量传递效率更高,散热效果更好。
在可选的实施方式中,所述第二壳体设置有所述散热片。此时热量传递路径依次为:发光体、均热板(第一壳体(电路板)、均热板内部结构、第二壳体、散热片),再通过风扇带走热量。在该实施例中,热量传递效率更高,散热效果更好。
在可选的实施方式中,所述至少一个光源模块包括多个光源模块,所述光源组件还包括二向色板,所述二向色板的反射面与所述多个光源模块发出的光成夹角设置,用于调整所述多个光源模块的光路;所述均热板的数量为多个,每一个所述均热板上均设置有至少一个所述光源模块,多个所述均热板均用于与所述散热片连接。对于多个光源模块来说,可以通过二向色板调整光源模块的光路,而多个光源模块可以通过对应的均热板实现导热;也就是说,该实施例能够实现光源模块的灵活设置。
在可选的实施方式中,多个所述均热板包括第一均热板和第二均热板,所述光源模块包括第一光源模块和第二光源模块,所述第一光源模块设置于所述第一均热板,所述第二光源模块设置于所述第二均热板,所述第一均热板和所述第二均热板均用于与所述散热片连接。
在可选的实施方式中,多个所述均热板中包括第一均热板、第二均热板和第三均热板,所述第一均热板和所述第三均热板相对;所述光源模块包括第一光源模块、第二光源模块和第三光源模块,所述第一光源模块设置于所述第一均热板,所述第二光源模块设置于所述第二均热板,所述第三光源模块设置于所述第三均热板,所述第一均热板、所述第二均热板和所述第三均热板均用于与所述散热片连接。
在可选的实施方式中,所述至少一个光源模块包括多个光源模块,所 述光源组件还包括二向色板,所述二向色板的反射面与所述多个光源模块发出的光成夹角设置,用于调整所述多个光源模块的光路;所述均热板具有安装面,所述多个光源模块均设置于所述安装面上,且所述安装面为平面。
第二方面,本发明实施例提供一种投影仪光机,包括风扇、散热片和如前述实施方式中任一项所述的光源组件,所述散热片与所述均热板连接,所述风扇与所述散热片相对,用于使气体流经所述散热片。
在可选的实施方式中,所述散热片与所述均热板一体设置,进一步提升导热效率,提高光源的散热效果。
第三方面,本发明实施例提供一种投影仪,包括如前述实施方式所述的投影仪光机。
在可选的实施方式中,所述投影仪还包括散热板,所述散热板与所述均热板连接。
本发明实施例提供的光源组件、投影仪光机和投影仪:该投影仪光机包括风扇、散热片和光源组件,该光源组件包括均热板和至少一个光源模块,光源模块设置在均热板上。均热板的导热效率好,能够很好地将热量扩散到整个均热板结构中,从而实现更好的散热。对于光源模块来说,其在工作中产生的热量集中于与该光源模块直接接触的均热板上,均热板能够将该部位的热量传递至均热板的其他部位,即均热板能够将与光源模块接触部位的热量迅速扩散到其他部位,实现均热板与光源模块接触部位的散热,也实现了光源模块的散热。在本发明实施例中,光源模块的热量传递路径依次为:光源模块、均热板、散热片,并通过风扇将散热片的热量以气流的形式带走,从而实现光源的散热。在现有技术中,热量传递的路径依次为:光源、导热铜块、热管、鳍片,并通过风扇鳍片的热量以气流的形式带走,实现光源的散热。相比于该现有技术,本发明实施例具有更高效的导热效率,并且均热板能够使均热板上的热量基本均匀,再通过散热片将均热板的热量传递至散热片。本发明实施例相对于上述的现有技术具有更好的散热效果,有利于减少或避免光源过热。
附图说明
为了更清楚地说明本发明实施例的技术方案,下面将对实施例中所需要使用的附图作简单地介绍,应当理解,以下附图仅示出了本发明的某些实施例,因此不应被看作是对范围的限定,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他相关的附图。
图1为本发明实施例提供的投影仪光机的结构示意图;
图2为图1中的光源模块的结构示意图;
图3为本发明实施例提供的均热板的第一壳体和第二壳体的结构示意图;
图4为本发明实施例提供的光源模块与第一壳体、散热片与第二壳体连接的结构示意图;
图5为本发明实施例提供的另一种光源和均热板排布的结构示意图;
图6为本发明实施例提供的第三种光源和均热板排布的结构示意图;
图7为本发明实施例提供的第四种光源和均热板排布的结构示意图;
图8为本发明实施例提供的第五种光源和均热板排布的结构示意图;
图9为本发明实施例提供的第六种光源和均热板排布的结构示意图。
图标:100-投影仪光机;110-风扇;120-散热片;121-第一散热部;122-第二散热部;123-第三散热部;130-光源组件;131-均热板;1311-第一壳体;1312-第二壳体;1313-第一均热板;1314-第二均热板;1315-第三均热板;132-光源模块;1321-发光体;1322-电路板;1323-第一光源模块;1324-第二光源模块;1325-第三光源模块;133-二向色板;134-镜面反射板。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。 通常在此处附图中描述和示出的本发明实施例的组件可以以各种不同的配置来布置和设计。
因此,以下对在附图中提供的本发明的实施例的详细描述并非旨在限制要求保护的本发明的范围,而是仅仅表示本发明的选定实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
应注意到:相似的标号和字母在下面的附图中表示类似项,因此,一旦某一项在一个附图中被定义,则在随后的附图中不需要对其进行进一步定义和解释。
在本发明的描述中,需要说明的是,术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系,或者是该发明产品使用时惯常摆放的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。此外,术语“第一”、“第二”、“第三”等仅用于区分描述,而不能理解为指示或暗示相对重要性。
此外,术语“水平”、“竖直”等术语并不表示要求部件绝对水平或悬垂,而是可以稍微倾斜。如“水平”仅仅是指其方向相对“竖直”而言更加水平,并不是表示该结构一定要完全水平,而是可以稍微倾斜。
在本发明的描述中,还需要说明的是,除非另有明确的规定和限定,术语“设置”、“安装”、“相连”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通。对于本领域的普通技术人员而言,可以具体情况理解上述术语在本发明中的具体含义。
请参阅图1,本发明实施例提供一种光源组件130、以及包括该光源组件130的投影仪光机100。该投影仪光机100可以应用于投影仪,具有散热效果好的特点,有利于避免或减少因光源过热导致的光衰现象和烧坏光源, 能够使光源散热良好,保证投影仪的使用效果和使用寿命,从而提升用户体验。
在本发明实施例中,该投影仪光机100包括风扇110、散热片120和光源组件130,其中,光源组件130可以包括均热板131和至少一个光源模块132,至少一个光源模块132均设置于均热板131上,均热板131与散热片120连接,风扇110用于使气体流经散热片120,从而带走散热片120上的热量。
应当理解的是,在本发明实施例中,投影仪光机100在使用时,光源模块132工作并产生热量。光源模块132设置在均热板131上,光源模块132产生的热量随之传递至均热板131上,并通过均热板131传递至散热片120。风扇110能够以气流形式带走传递至散热片120的热量。也就是说,在本发明实施例中,光源模块132的热量传递路径依次为:光源模块132、均热板131、散热片120,并通过风扇110将散热片120的热量以气流的形式带走,从而实现光源的散热。
在本发明实施例中,均热板131的导热效率好,能够很好地将热量扩散到整个均热板131结构中,从而实现更好的散热。对于光源模块132来说,其在工作中产生的热量集中于与该光源模块132直接接触的均热板131上,均热板131能够将该部位的热量传递至均热板131的其他部位,即均热板131能够将与光源模块132接触部位的热量迅速扩散到其他部位,实现均热板131与光源模块132接触部位的散热,也实现了光源模块132的散热。散热片120与均热板131连接,均热板131的热量进一步传递至散热片120上;风扇110能够促进散热片120及其附近的气体流动,气流带走热量,实现散热片120散热。
需要说明的是,在现有技术中,投影仪光机100的光源通过导热铜块将热量传递至热管(或导热铜管),热管与散热鳍片连接,通过风扇110带走鳍片上的热量。即在现有技术中,热量传递的路径依次为:光源、导热铜块、热管、鳍片,并通过风扇110鳍片的热量以气流的形式带走,实现光源的散热。通常,导热铜管贴在导热铜块上,即导热铜块和导热铜管为两个不同部件,通过导热材料连接,这部分导热材料会带来较大热阻,影 响热量及时传递;也就是说,热量会在导热铜块上积累而不能及时地传递至导热铜管上,影响光源的散热效果。同时,导热铜块和导热铜管的尺寸存在差异,导热铜块上的热量在传递至导热铜管时,不能均匀传递至导热铜管;也就是说,导热铜块上与导热铜管直接连接的部位热量传递得快一些,而其他部位热量传得慢一些,导热铜块上的热量不均匀会影响光源热量的传递。
而本发明实施例提供的投影仪光机100,均热板131能够将集中的热量迅速分散到均热板131的各个部位,热量在均热板131上基本是均匀的;光源模块132设置在均热板131上,可以实现热量的迅速传递。均热板131能够使均热板131上的热量基本均匀,再通过散热片120将均热板131的热量传递至散热片120。本发明实施例相对于上述的现有技术具有更好的散热效果,有利于减少或避免光源过热。
此外,还需要说明的是,在上述的现有技术中,热管(或导热铜管)一般为圆管状,热管与导热铜块的接触面积较小,加之两者接触部位通过导热材料连接,对传热效果影响较大。虽然可以通过机械加工,将圆管加工成扁圆形或将特定部位加工成平面,以此加大与导热铜块的接触面积,改善热传递,但实际在导热铜块和热管的结合部位仍存在较大热阻。同时热管的传热为一维方向传热,热量的扩散比较受限,进一步影响热量传递效率。而在本发明实施例中,均热板131能够做到迅速将热量传递至各部位,可以实现水平和垂直两个方向传热,均热板131是一种二维方向的传热,相较于热管的一维传热,具有显著的传热优势。
此外,对于均热板131来说,其具有良好的导热效果,散热片120可以相应缩小体积,从而可以使得均热板131和散热片120占用体积更小。
可选地,光源模块132可以为红光模块、绿光模块、蓝光模块等,对应地发出红光、绿光、蓝光等。图中,R表示红光模块;G表示绿光模块;B表示蓝光模块;Bp表示Blue pumping蓝光激发,用于提升亮度。
而对于本发明实施例中的光源组件130,其包括均热板131和至少一个光源模块132,光源模块132设置在均热板131上。光源模块132产生的热 量能够通过均热板131进行传递,有利于提升光源模块132的散热效率,提升其散热效果。
需要说明的是,投影仪的光源可以为LED或激光(LED,Light Emitting Diode,发光二极管),对于投影仪光源为LED时,该光源模块132为LED模块;对于投影仪光源为激光时,该光源模块132为激光模块。
请参阅图2,在本实施方式中,该光源模块132可以包括发光体1321和电路板1322,发光体1321与电路板1322连接;请参阅图3,均热板131具有相对的第一壳体1311和第二壳体1312,电路板1322设置于第一壳体1311上,第二壳体1312用于与散热片120连接。
可选地,该发光体1321可以为LED。电路板1322可以为铜极片,该铜极片上设置有电路,LED与该电路电连接,投影仪的控制器能够控制该LED的工作状态,该工作状态包括但不限于:LED的开启、关闭、亮度等。
电路板1322设置在第一壳体1311上,其设置方式包括但不限于:电路板1322与第一壳体1311连接、电路板1322与第一壳体1311一体设置等。电路板1322与第一壳体1311连接的方式可以为通过导热材料连接;电路板1322与第一壳体1311一体设置的方式可以为焊接或者一体成型等。该电路板1322可以为设置有电路的铜极片,第一壳体1311也可以为铜板或铜片,以提升光源的导热效率。
在该实施例中,均热板131相对的第一壳体1311和第二壳体1312分别对应电路板1322和散热片120:电路板1322设置于第一壳体1311;散热片120与第二壳体1312连接。也就是说,电路板1322和散热片120位于均热板131相对的两侧,热量从发光体1321和电路板1322传递至第一壳体1311,第一壳体1311上的热量扩散到均热板131上包括第二壳体1312的其他结构,在通过第二壳体1312将热量传递至散热片120。电路板1322与散热片120的位置相对能够进一步确保均热板131内热量基本均匀,从而进一步保证热量传递效率和散热效果。
如图4所示,电路板1322与第一壳体1311一体成型,且第一壳体1311上设置有与发光体1321电连接的电路。也就是说,光源模块132的电路板 1322为均热板131的第一壳体1311;可选地,在电路板1322为铜极片,第一壳体1311为铜板或铜片,电路板1322的铜极片与第一壳体1311的铜板或铜片为同一结构。
应当理解的是,电路板1322与第一壳体1311一体成型,即电路板1322和第一壳体1311可以为同一结构。上述的发光体1321设置在第一壳体1311上。在发光体1321工作时,热量能够直接传递至第一壳体1311,能够进一步提升热量传递效率,保证发光体1321的散热。此时热量传递路径依次为:发光体1321、均热板131(第一壳体1311(电路板1322)、均热板131内部结构、第二壳体1312)、散热片120,再通过风扇110对散热片120散热。在该实施例中,热量传递效率更高,散热效果更好。
可选地,第二壳体1312设置有散热片120。也就是说,散热片120也可以与均热板131设置为一体,其设置方式包括但不限于:焊接或者散热片120与第二壳体1312一体成型。
在散热片120与第二壳体1312一体成型时,热量传递路径依次为:发光体1321、均热板131(第一壳体1311(电路板1322)、均热板131内部结构、第二壳体1312、散热片120),再通过风扇110带走热量。在该实施例中,热量传递效率更高,散热效果更好。
在可选的实施方式中,至少一个光源模块132包括多个光源模块132,光源组件130还包括二向色板133,二向色板133的反射面与多个光源模块132发出的光成夹角设置,用于调整多个光源模块132的光路;均热板131的数量为多个,每一个均热板131上均设置有至少一个光源模块132,多个均热板131均用于与散热片120连接。
如图5所示,二向色板133可以有多个;在某些实施例中,光源组件130还可以包括镜面反射板134,二向色板133的设置以及镜面反射板134的设置能够是光源模块132发出的光线汇集到投影仪光机100的数字微镜器件(DMD,Digital Micromirror Device)上成像。
请参阅图5,在可选的实施方式中,在多个均热板131中包括第一均热板1313和第二均热板1314,光源模块132包括第一光源模块1323和第二 光源模块1324,第一光源模块1323设置于第一均热板1313,第二光源模块1324设置于第二均热板1314,第一均热板1313和第二均热板1314均用于与散热片120连接。此时,相对应地,散热片120包括第一散热部121和第二散热部122,其中,第一散热部121与第一均热板1313连接,第二散热部122与第二均热板1314连接,并通过风扇110带走第一散热部121和第二散热部122的热量。
应当理解的是,在如图5至图7所示的实施例中,第一均热板1313和第二均热板1314可以连接,也可以相互间隔,第一均热板1313和第二均热板1314成夹角可以为两者的延长线相交成夹角。相应地,对于散热片120来说,第一散热部121和第二散热部122也可以相互连接或间隔。
请参阅图8和图9,在可选的实施方式中,多个均热板包括第一均热板1313、第二均热板1314和第三均热板1315,第一均热板1313和第三均热板1315相对;光源模块132包括第一光源模块1323、第二光源模块1324和第三光源模块1325,第一光源模块1323设置于第一均热板1313,第二光源模块1324设置于第二均热板1314,第三光源模块1325设置于第三均热板1315,第一均热板1313、第二均热板1314和第三均热板1315均用于与散热片120连接。此时,相对应地,散热片120包括第一散热部121、第二散热部122和第三散热部123,其中,第一散热部121与第一均热板1313连接,第二散热部122与第二均热板1314连接,第三散热部123与第三均热板1315连接,并通过风扇110带走第一散热部121、第二散热部122和第三散热部123的热量。
需要说明的是,在上述的图5至图9所示的实施例中,其利用均热板131实现多个光源模块132的散热。多个均热板的设置可以在现有光源模块132的布局基础上,利用均热板131实现良好散热。同时,也应当理解的是,上述图5至图9中所述的光源模块132的排布只是举例,本发明实施例能够实现各种排布方式的光源模块132的良好散热,包括但不限于上述的排布方式。
在可选的实施方式中,均热板131具有安装面,多个光源模块132均设置于安装面上,且安装面为平面。多个光源模块132可以成一字排布, 即多个光源模块132的发热面在同一平面上,在多个光源模块132工作时,能够将热量同步地传递到均热板131上,实现更好的导热效果。
请参阅图3,如前所述,均热板131具有相对的第一壳体1311和第二壳体1312,在第一壳体1311和第二壳体1312之间设置有管芯和蒸汽腔。光源模块132设置于第一壳体1311,散热片120设置于第二壳体1312,有利于使均热板131中的热量更加均匀,从而提升导热效果。
可选地,光源模块132的电路板1322与第一壳体1311一体设置,散热片120与第二壳体1312一体设置。光源模块132的电路板1322与第一壳体1311设置为一体,能够提升电路板1322与第一壳体1311的导热效率;散热片120与第二壳体1312设置为一体,能够提升第二壳体1312与散热片120的导热效率。也就是说,在该实施例中,热量传递的效率更高,更有利于光源模块132散热。
进一步地,该电路板1322与第一壳体1311一体成型,散热片120与第二壳体1312一体成型。电路板1322与第一壳体1311一体成型,可以在该第一壳体1311上设置电路,该电路与发光体1321(LED等)电连接。发光体1321在工作时产生的热量能够直接传递至第一壳体1311,从而提升热量传递效率。散热片120与第二壳体1312一体成型,即在均热板131的第二壳体1312上设置散热片120。
本发明实施例提供一种包括上述投影仪光机100的投影仪,该投影仪具有良好的散热效果,有利于避免或减少投影仪光机100过热,从而提升用户体验和产品的使用寿命。
进一步地,该投影仪还可以包括散热板,散热板与均热板131连接,用于将均热板131上的热量传递至散热板上,有利于提升光源的散热效果,进一步避免或减少光源过热。
请结合参阅图1至图9,本发明实施例提供的光源组件130、投影仪光机100和投影仪:该投影仪光机100包括风扇110、散热片120和光源组件130,该光源组件130包括均热板131和至少一个光源模块132,光源模块132设置在均热板131上。均热板131的导热效率好,能够很好地将热量扩 散到整个均热板131结构中,从而实现更好的散热。对于光源模块132来说,其在工作中产生的热量集中于与该光源模块132直接接触的均热板131上,均热板131能够将该部位的热量传递至均热板131的其他部位,即均热板131能够将与光源模块132接触部位的热量迅速扩散到其他部位,实现均热板131与光源模块132接触部位的散热,也实现了光源模块132的散热。在本发明实施例中,光源模块132的热量传递路径依次为:光源模块132、均热板131、散热片120,并通过风扇110将散热片120的热量以气流的形式带走,从而实现光源的散热。在现有技术中,热量传递的路径依次为:光源、导热铜块、热管、鳍片,并通过风扇110鳍片的热量以气流的形式带走,实现光源的散热。相比于该现有技术,本发明实施例具有更高效的导热效率,并且均热板131能够使均热板131上的热量基本均匀,再通过散热片120将均热板131的热量传递至散热片120。本发明实施例相对于上述的现有技术具有更好的散热效果,有利于减少或避免光源过热。
以上所述仅为本发明的优选实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。

Claims (12)

  1. 一种光源组件,其特征在于,所述光源组件(130)包括均热板(131)和至少一个光源模块(132),所述至少一个光源模块(132)均设置于所述均热板(131)上,所述均热板(131)用于与投影仪光机(100)的散热片(120)连接。
  2. 根据权利要求1所述的光源组件,其特征在于,所述光源模块(132)包括发光体(1321)和电路板(1322),所述发光体(1321)与所述电路板(1322)连接;所述均热板(131)具有相对的第一壳体(1311)和第二壳体(1312),所述电路板(1322)设置于所述第一壳体(1311)上,所述第二壳体(1312)用于与所述散热片(120)连接。
  3. 根据权利要求2所述的光源组件,其特征在于,所述电路板(1322)与所述第一壳体(1311)一体成型,且所述第一壳体(1311)上设置有与所述发光体(1321)电连接的电路。
  4. 根据权利要求2所述的光源组件,其特征在于,所述第二壳体(1312)设置有所述散热片(120)。
  5. 根据权利要求1-4中任一项所述的光源组件,其特征在于,所述至少一个光源模块(132)包括多个光源模块(132),所述光源组件(130)还包括二向色板(133),所述二向色板(133)的反射面与所述多个光源模块(132)发出的光成夹角设置,用于调整所述多个光源模块(132)的光路;所述均热板(131)的数量为多个,且每一个所述均热板(131)上均设置有至少一个所述光源模块(132),所述均热板(131)均用于与所述散热片(120)连接。
  6. 根据权利要求5所述的光源组件,其特征在于,多个所述均热板(131)中包括第一均热板(1313)和第二均热板(1314),所述光源模块(132)包括第一光源模块(1323)和第二光源模块(1324),所述第一光源模块(1323)设置于所述第一均热板(1313),所述第二光源模块(1324)设置于所述第二均热板(1314),所述第一均热板(1313)和所述第二均热板(1314)均用于与所述散热片(120)连接。
  7. 根据权利要求5所述的光源组件,其特征在于,多个所述均热板中包括第一均热板(1313)、第二均热板(1314)和第三均热板(1315),所述第一均热板(1313)和所述第三均热板(1315)相对;所述光源模块(132)包括第一光源模块(1323)、第二光源模块(1324)和第三光源模块(1325),所述第一光源模块(1323)设置于所述第一均热板(1313),所述第二光源模块(1324)设置于所述第二均热板(1314),所述第三光源模块(1325)设置于所述第三均热板(1315),所述第一均热板(1313)、所述第二均热板(1314)和所述第三均热板(1315)均用于与所述散热片(120)连接。
  8. 根据权利要求1-4中任一项所述的光源组件,其特征在于,所述至少一个光源模块(132)包括多个光源模块(132),所述光源组件(130)还包括二向色板(133),所述二向色板(133)的反射面与所述多个光源模块(132)发出的光成夹角设置,用于调整所述多个光源模块(132)的光路;所述均热板(131)具有安装面,所述多个光源模块(132)均设置于所述安装面上,且所述安装面为平面。
  9. 一种投影仪光机,其特征在于,包括风扇(110)、散热片(120)和如权利要求1-6中任一项所述的光源组件(130),所述散热片(120)与所述均热板(131)连接,所述风扇(110)与所述散热片(120)相对,用于使气体流经所述散热片(120)。
  10. 根据权利要求9所述的投影仪光机,其特征在于,所述散热片(120)与所述均热板(131)一体设置。
  11. 一种投影仪,其特征在于,包括如权利要求9或10所述的投影仪光机(100)。
  12. 根据权利要求11所述的投影仪,其特征在于,所述投影仪还包括散热板,所述散热板与所述均热板(131)连接。
PCT/CN2021/107043 2020-10-26 2021-07-19 光源组件、投影仪光机和投影仪 WO2022088772A1 (zh)

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