CN109709669B - A Projector Color Wheel Structure and Its Heat Dissipation Scheme - Google Patents
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Abstract
Description
技术领域technical field
本发明涉及投影行业技术领域，具体为一种投影机色轮结构。同时本发明还涉及一种投影机色轮结构的散热方案。The invention relates to the technical field of the projection industry, in particular to a color wheel structure of a projector. At the same time, the invention also relates to a heat dissipation solution for the color wheel structure of the projector.
背景技术Background technique
在DLP投影系统中，输入信号被转化为RGB数据，数据按顺序写入DMD的SRAM，光源通过聚焦透镜聚焦在色轮上，通过色轮的光线然后成像在DMD的表面。当色轮旋转时，红、绿、蓝光顺序地入射在DMD上。色轮和视频图像是顺序进行的，所以当红光射到DMD上时，镜片按照红色信息应该显示的位置和强度倾斜到"开"，绿色和蓝色光及视频信号亦是如此工作。人体视觉系统集中红、绿、蓝信息并看到一个全彩色图像。通过投影透镜，在DMD表面形成的图像可以被投影到一个大屏幕上。In the DLP projection system, the input signal is converted into RGB data, and the data is sequentially written into the SRAM of the DMD. The light source is focused on the color wheel through the focusing lens, and the light passing through the color wheel is then imaged on the surface of the DMD. When the color wheel rotates, red, green, and blue light are sequentially incident on the DMD. The color wheel and video image are sequential, so when red light hits the DMD, the lens is tilted "on" according to the position and intensity of the red information that should be displayed, and the same works for green and blue light and video signals. The human visual system concentrates red, green, and blue information and sees a full-color image. Through the projection lens, the image formed on the DMD surface can be projected onto a large screen.
在该光学系统中，色轮的散热是一个重要的环节，光源发出的光经过汇聚成一束高能量光束，入射在色轮片上产生的热量，积聚在色轮结构罩里，如果色轮结构罩内部热量积累，导致内部温度超过色轮马达工作温度上限，则会损坏色轮马达，导致色轮马达性能下降或者减少色轮马达工作寿命。In this optical system, the heat dissipation of the color wheel is an important link. The light emitted by the light source is converged into a high-energy beam, and the heat generated by the incident on the color wheel sheet is accumulated in the color wheel structure cover. If the internal heat of the color wheel structure cover is accumulated, causing the internal temperature to exceed the upper limit of the working temperature of the color wheel motor, the color wheel motor will be damaged, resulting in a decrease in the performance of the color wheel motor or a reduction in the working life of the color wheel motor.
目前，超短焦投影机光学系统散热方案，针对色轮部位的散热方式，是采用风扇引导冷风流过色轮结构罩表面，利用冷风对色轮结构罩表面进行降温，把色轮结构罩表面热量带离色轮结构罩，实现冷热交换散热。At present, the heat dissipation scheme for the optical system of ultra-short-throw projectors is aimed at the heat dissipation method of the color wheel, which uses a fan to guide cold air to flow over the surface of the color wheel structure cover, and uses the cold air to cool the surface of the color wheel structure cover, and takes the heat from the surface of the color wheel structure cover away from the color wheel structure cover to achieve heat exchange and heat dissipation.
采用风冷散热的方式，散热效果的优劣取决于冷风经过色轮结构罩表面的流量，也就是说，只有保持相对高的风扇转速，才可以保证足够多的冷风流量和色轮结构罩表面的热量交换进行散热。这种方式的弊端是风扇不可能低速工作，而风扇高速工作时会产生大噪音，另外，利用风扇冷热交换散热，效率低。With the air-cooled heat dissipation method, the heat dissipation effect depends on the flow of cold air passing through the surface of the color wheel structure cover, that is to say, only by maintaining a relatively high fan speed can the sufficient flow of cold air flow and the heat exchange on the surface of the color wheel structure cover be guaranteed for heat dissipation. The disadvantage of this method is that it is impossible for the fan to work at a low speed, and when the fan works at a high speed, it will generate a lot of noise. In addition, the cooling and heat exchange of the fan is used for heat dissipation, and the efficiency is low.
发明内容Contents of the invention
本发明的目的在于提供一种投影机色轮结构及其方法，以解决上述背景技术中提出的问题。The object of the present invention is to provide a projector color wheel structure and method thereof, so as to solve the problems raised in the background art above.
为实现上述目的，本发明提供如下技术方案：一种投影机色轮结构，包括，色轮结构罩，所述色轮结构罩内部设置有色轮，所述色轮的旁边固定设置有导热伸缩装置，所述色轮包括荧光粉、色轮片基材、马达转轴、固定装置A；所述导热伸缩装置由固定装置B、伸缩装置、接触装置组成，所述色轮片基材的周边设置荧光粉，所述色轮片基材的中间固定连接马达转轴，所述色轮片基材且位于马达转轴的两边设置有固定装置A，所述色轮片基材上还设置有色轮标记，所述伸缩装置的一侧固定设置有接触装置，所述伸缩装置的另一侧固定设置有固定装置B，所述固定装置B固定设置在色轮结构罩内部。In order to achieve the above object, the present invention provides the following technical solution: a projector color wheel structure, comprising: a color wheel structure cover, a color wheel is arranged inside the color wheel structure cover, a heat conduction expansion device is fixedly arranged beside the color wheel, the color wheel includes fluorescent powder, a color wheel base material, a motor shaft, and a fixing device A; the heat conduction expansion device is composed of a fixing device B, a expansion device, and a contact device; A fixing device A is arranged on both sides of the color wheel sheet, a color wheel mark is also arranged on the base material of the color wheel sheet, a contact device is fixedly arranged on one side of the telescoping device, and a fixing device B is fixedly arranged on the other side of the telescoping device, and the fixing device B is fixedly arranged inside the color wheel structure cover.
优选的，所述固定装置A为两个正方形、四个正方形、圆环形中任意一种，所述固定装置A左右对称设置在马达转轴的两边。马达转轴连接的马达由导线连接在超短焦投影机的供电系统。Preferably, the fixing device A is any one of two squares, four squares, and a circular ring, and the fixing device A is symmetrically arranged on both sides of the motor shaft. The motor connected to the motor shaft is connected to the power supply system of the ultra-short-throw projector by wires.
优选的，所述色轮上还设置有激光发射装置。激光发射装置通过导线连接在超短焦投影机的供电系统。Preferably, a laser emitting device is also arranged on the color wheel. The laser emitting device is connected to the power supply system of the ultra-short-throw projector through wires.
优选的，所述荧光粉、固定装置A、色轮标记均设置在所述色轮的同侧。Preferably, the fluorescent powder, the fixing device A, and the color wheel marks are all arranged on the same side of the color wheel.
优选的，所述接触装置的材料为石墨烯，所述接触装置为矩形片状结构。Preferably, the material of the contact device is graphene, and the contact device is a rectangular sheet structure.
优选的，所述固定装置A和固定装置B均为导热的金属材料。Preferably, both the fixing device A and the fixing device B are heat-conducting metal materials.
一种投影机色轮结构的散热方案，包括如下步骤：A heat dissipation scheme for a projector color wheel structure, comprising the following steps:
步骤1：接触装置选用的石墨烯材料在碰撞到色轮后弹簧伸缩；Step 1: The graphene material selected by the contact device springs and expands after colliding with the color wheel;
步骤2：导热装置的工作时间定义为nT(n＝100、200、300………,T是色轮转一周所需要的时间)；Step 2: The working time of the heat conduction device is defined as nT (n=100, 200, 300..., T is the time required for the color wheel to make one revolution);
步骤3：整机正常工作后，在nT时间后导热装置完成与色轮固定装置接触，接触后迅速离开固定装置A，两者接触过程中会使色轮的转速减慢，这一过程中可以关掉激光，关掉激光的时间应小于人眼可识别的时间(人眼可识别最低频率24Hz)，在此时间段，迅速完成色轮正常工作转速的调整，从而不影响色轮的正常工作和成像的颜色。Step 3: After the whole machine works normally, the heat conduction device completes contact with the color wheel fixing device after nT time, and leaves the fixing device A quickly after contact. During the contact process, the speed of the color wheel will slow down. During this process, the laser can be turned off. The time for turning off the laser should be less than the time that can be recognized by human eyes (the lowest frequency that can be recognized by human eyes is 24Hz). During this time period, the adjustment of the normal working speed of the color wheel can be completed quickly, so as not to affect the normal operation of the color wheel and the color of the image.
与现有技术相比，本发明的有益效果是：本结构在色轮的基材上增加固定装置(导热金属)，在色轮结构罩内壁安装可伸缩快速导热装置，利用可导热装置与固定装置A接触时快速将色轮上的热导向色轮结构罩。快速导热装置离开后，色轮基材继续通过辐射向色轮结构罩散热。从而实现传导散热和辐射散热的效果。Compared with the prior art, the beneficial effects of the present invention are: the structure adds a fixing device (heat-conducting metal) to the base material of the color wheel, installs a retractable and fast heat-conducting device on the inner wall of the color wheel structure cover, and quickly guides the heat on the color wheel to the color wheel structure cover when the heat-conducting device contacts the fixing device A. After the fast heat conduction device leaves, the color wheel base material continues to dissipate heat to the color wheel structure cover through radiation. Thereby realizing the effect of conduction heat dissipation and radiation heat dissipation.
附图说明Description of drawings
图1为本发明的结构示意图；Fig. 1 is a structural representation of the present invention;
图2为本发明的色轮结构一示意图；Fig. 2 is a schematic diagram of a color wheel structure of the present invention;
图3为本发明的色轮结构二示意图；Fig. 3 is the second schematic diagram of the color wheel structure of the present invention;
图4为本发明的色轮结构三示意图；Fig. 4 is three schematic diagrams of the color wheel structure of the present invention;
图5为本发明的导热伸缩装置结构示意图。Fig. 5 is a structural schematic diagram of the heat conduction expansion device of the present invention.
具体实施方式Detailed ways
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，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。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它实施例，都属于本发明保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
请参阅图1-5所示的一种投影机色轮结构，包括，色轮结构罩，所述色轮结构罩内部设置有色轮，所述色轮的旁边固定设置有导热伸缩装置，所述色轮包括荧光粉、色轮片基材、马达转轴、固定装置A；所述导热伸缩装置由固定装置B、伸缩装置、接触装置组成，所述色轮片基材的周边设置荧光粉，所述色轮片基材的中间固定连接马达转轴，所述色轮片基材且位于马达转轴的两边设置有固定装置A，所述色轮片基材上还设置有色轮标记，所述伸缩装置的一侧固定设置有接触装置，所述伸缩装置的另一侧固定设置有固定装置B，所述固定装置B固定设置在色轮结构罩内部。Please refer to the color wheel structure of a projector shown in Figures 1-5, which includes a color wheel structure cover. A color wheel is arranged inside the color wheel structure cover. A heat conduction telescopic device is fixedly arranged beside the color wheel. The color wheel includes phosphor, a color wheel base material, a motor shaft, and a fixing device A; Fixing device A, the base material of the color wheel sheet is also provided with a color wheel mark, one side of the telescopic device is fixedly provided with a contact device, and the other side of the telescopic device is fixedly provided with a fixing device B, and the fixing device B is fixedly installed inside the color wheel structure cover.
进一步地，所述固定装置A为两个正方形、四个正方形、圆环形中任意一种，所述固定装置A左右对称设置在马达转轴的两边。Further, the fixing device A is any one of two squares, four squares, and a circular ring, and the fixing device A is symmetrically arranged on both sides of the motor shaft.
进一步地，所述色轮上还设置有激光发射装置。Further, the color wheel is also provided with a laser emitting device.
进一步地，所述荧光粉、固定装置A、色轮标记均设置在所述色轮的同侧。Further, the fluorescent powder, the fixing device A, and the color wheel mark are all arranged on the same side of the color wheel.
进一步地，所述接触装置的材料为石墨烯，所述接触装置为矩形片状结构。Further, the material of the contact device is graphene, and the contact device is a rectangular sheet structure.
进一步地，所述固定装置A和固定装置B均为导热的金属材料。Further, both the fixing device A and the fixing device B are heat-conducting metal materials.
一种投影机色轮结构的散热方案，包括如下步骤：A heat dissipation scheme for a projector color wheel structure, comprising the following steps:
步骤1：接触装置选用的石墨烯材料在碰撞到色轮后弹簧伸缩；Step 1: The graphene material selected by the contact device springs and expands after colliding with the color wheel;
步骤2：导热装置的工作时间定义为nT(n＝100、200、300………,T是色轮转一周所需要的时间)；Step 2: The working time of the heat conduction device is defined as nT (n=100, 200, 300..., T is the time required for the color wheel to make one revolution);
步骤3：整机正常工作后，在nT时间后导热装置完成与色轮固定装置接触，接触后迅速离开固定装置A，两者接触过程中会使色轮的转速减慢，这一过程中可以关掉激光，关掉激光的时间应小于人眼可识别的时间(人眼可识别最低频率24Hz)，在此时间段，迅速完成色轮正常工作转速的调整，从而不影响色轮的正常工作和成像的颜色。Step 3: After the whole machine works normally, the heat conduction device completes contact with the color wheel fixing device after nT time, and leaves the fixing device A quickly after contact. During the contact process, the speed of the color wheel will slow down. During this process, the laser can be turned off. The time for turning off the laser should be less than the time that can be recognized by human eyes (the lowest frequency that can be recognized by human eyes is 24Hz). During this time period, the adjustment of the normal working speed of the color wheel can be completed quickly, so as not to affect the normal operation of the color wheel and the color of the image.
综上所述：本结构的色轮散热优化方案原理是，在色轮的基材上增加固定装置(导热金属)，在色轮结构罩内壁安装可伸缩快速导热装置，利用可导热装置与固定装置A接触时快速将色轮上的热导向色轮结构罩。快速导热装置离开后，色轮基材继续通过辐射向色轮结构罩散热。从而实现传导散热和辐射散热的效果。To sum up: the principle of the color wheel heat dissipation optimization scheme of this structure is to add a fixing device (heat-conducting metal) to the base material of the color wheel, install a retractable and fast heat-conducting device on the inner wall of the color wheel structure cover, and use the heat-conducting device to quickly guide the heat on the color wheel to the color wheel structure cover when it contacts the fixing device A. After the fast heat conduction device leaves, the color wheel base material continues to dissipate heat to the color wheel structure cover through radiation. Thereby realizing the effect of conduction heat dissipation and radiation heat dissipation.
在本说明书的描述中，参考术语“一个实施例”、“示例”、“具体示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。In the description of this specification, descriptions with reference to the terms "one embodiment", "example", "specific example" and the like mean that specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
以上公开的本发明优选实施例只是用于帮助阐述本发明。优选实施例并没有详尽叙述所有的细节，也不限制该发明仅为所述的具体实施方式。显然，根据本说明书的内容，可作很多的修改和变化。本说明书选取并具体描述这些实施例，是为了更好地解释本发明的原理和实际应用，从而使所属技术领域技术人员能很好地理解和利用本发明。本发明仅受权利要求书及其全部范围和等效物的限制。The preferred embodiments of the invention disclosed above are only to help illustrate the invention. The preferred embodiments are not exhaustive in all detail, nor are the inventions limited to specific embodiments described. Obviously, many modifications and variations can be made based on the contents of this specification. This description selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the art can well understand and utilize the present invention. The invention is to be limited only by the claims, along with their full scope and equivalents.
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| CN1723414A (en) * | 2003-08-26 | 2006-01-18 | 精工爱普生株式会社 | Optical devices and projectors |
| CN102692798A (en) * | 2011-03-23 | 2012-09-26 | 卡西欧计算机株式会社 | Cooling unit and projector |
| KR101266432B1 (en) * | 2013-03-12 | 2013-05-22 | 주식회사 세기하이텍 | A wide heat spreader for cooling down a digital information display device |
| CN203643734U (en) * | 2013-12-11 | 2014-06-11 | 深圳市光峰光电技术有限公司 | color wheel device |
| CN105290672A (en) * | 2015-10-12 | 2016-02-03 | 余储 | Plate fixing device for welding which is capable of water-cooling and is provided with LED lamps |
| CN205179610U (en) * | 2015-11-27 | 2016-04-20 | 深圳市绎立锐光科技开发有限公司 | Heat abstractor and applied this heat abstractor's projection equipment |
| CN107505804A (en) * | 2016-06-14 | 2017-12-22 | 深圳市光峰光电技术有限公司 | Colour wheel heat abstractor and the projector equipment with the heat abstractor |
| CN206057778U (en) * | 2016-08-10 | 2017-03-29 | 深圳市绎立锐光科技开发有限公司 | A kind of colour wheel module, light source module and optical projection system |
| CN106304616A (en) * | 2016-08-19 | 2017-01-04 | 浙江宇视科技有限公司 | The radiator structure of a kind of pcb board and the manufacture method of this radiator structure |
| CN108227352A (en) * | 2016-12-09 | 2018-06-29 | 深圳市光峰光电技术有限公司 | Color block component, light supply apparatus and projection device |
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| CN109709669A (en) | 2019-05-03 |
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