CN215986869U - External high temperature resistant split type laser projector of cooling system - Google Patents
External high temperature resistant split type laser projector of cooling system Download PDFInfo
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- CN215986869U CN215986869U CN202122448290.4U CN202122448290U CN215986869U CN 215986869 U CN215986869 U CN 215986869U CN 202122448290 U CN202122448290 U CN 202122448290U CN 215986869 U CN215986869 U CN 215986869U
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Abstract
The utility model discloses a high-temperature-resistant split laser projector with an external cooling system, which comprises a laser projector host with a heat dissipation plate and a temperature control system, cooling medium input and output hoses and an external cooling heat dissipation case, wherein a red, a green and a blue monochromatic laser, a temperature sensor and a thermoelectric refrigerator are arranged on the heat dissipation plate with a cooling medium pipeline. The external cooling heat dissipation case comprises a pressurizing circulating pump, a heat dissipation fan and a heat dissipation case pipeline. The cooling medium input and output hose and the cooling plate cooling medium pipeline are connected with the heat dissipation case pipeline to form a closed circulation passage, so that the heat of the laser projector host is transferred to the external cooling heat dissipation case. The utility model not only realizes the accurate control of different working temperature requirements of the three-color laser light source, but also adopts an external cooling cabinet mode, so that the problem that the laser projector can not be normally used for a long time in severe environments such as high temperature and the like can be solved, and the utility model has important significance for expanding the application field of the laser projector.
Description
Technical Field
The utility model relates to the field of laser projectors, in particular to a high-temperature-resistant split type laser projector with an external cooling system.
Background
With the improvement of modern information technology, people have higher and higher requirements on projection pictures. Laser light is gradually replacing traditional light sources due to its advantages of good monochromaticity, high brightness, long service life of light source, low light attenuation, etc., and becomes the main light source for next generation projection display.
The laser projector uses laser beams emitted by a semiconductor laser as a light source, red, green and blue lasers are subjected to light homogenizing, shaping and dissipation through corresponding optical elements, are modulated by an image processing chip, and finally are projected onto a display screen by a projection objective. However, the high heat energy generated during the operation of the semiconductor laser currently limits the application range. Particularly, a light source module of a high-brightness laser projector usually requires a plurality of semiconductor lasers to perform array combination, so that the heat productivity of the whole module is greatly increased, and great heat dissipation pressure is brought to the whole system. Meanwhile, the temperature ranges of normal operation of different types of lasers are different, and the lasers are difficult to operate in a high-temperature environment due to the adoption of a single heat dissipation mode. Therefore, how to overcome the limitation of using a laser projector in a high temperature environment while reducing the system size is still one of the problems to be solved by those skilled in the art.
Disclosure of Invention
The utility model aims to provide a high-temperature resistant split type laser projector with an external cooling system, which has a stable and reliable light power output environment for a laser light source and aims at the requirement of long-time high-temperature operation in special fields while further reducing the volume of the laser projector system.
The purpose of the utility model is realized as follows:
the utility model provides an external split type laser projector of high temperature resistant of cooling system which the characteristic is: the laser projector comprises a laser projector host with a heat dissipation plate and a temperature control system, a cooling medium input hose, a cooling medium output hose and an external cooling heat dissipation case, wherein a pressurization circulating pump for providing power for cooling medium circulation, a heat dissipation fan for increasing heat dissipation capacity of the whole system and a heat dissipation case pipeline are arranged in the external cooling heat dissipation case, the laser projector host is separated from the external cooling heat dissipation case, the input end of the cooling medium input hose is connected with the output end of the pressurization circulating pump, the output end of the cooling medium input hose is connected with the input end of a cooling medium pipeline of the heat dissipation plate in the heat dissipation plate of the laser projector host, the input end of the cooling medium output hose is connected with the output end of a cooling medium pipeline of the heat dissipation plate in the heat dissipation plate of the laser projector host, and the output end of the cooling medium output hose is connected with the input end of the pressurization circulating pump through the heat dissipation case pipeline, cooling media are filled in a cooling medium input hose, a cooling medium output hose, a cooling medium pipeline of a heat dissipation plate and a heat dissipation machine box pipeline, the cooling medium input hose and the cooling medium output hose connect the cooling medium pipeline of the heat dissipation plate with the heat dissipation machine box pipeline in an external cooling heat dissipation machine box to form a closed circulation passage, and a pressurizing circulation pump and a heat dissipation fan are connected with a temperature control system through wires; the laser projector is characterized in that a heat dissipation plate is arranged in a laser projector host, three monochromatic lasers of red, green and blue, a thermoelectric refrigerator and a heat dissipation plate cooling medium pipeline are arranged on the heat dissipation plate, a temperature sensor connected with a temperature control system through a lead is arranged on each monochromatic laser, a heat dissipation surface on each laser is connected with a refrigeration surface of the thermoelectric refrigerator, a hot surface of the thermoelectric refrigerator is attached to the heat dissipation plate cooling medium pipeline, and the heat dissipation plate cooling medium pipeline is arranged in the heat dissipation plate, so that the thermoelectric refrigerator can timely transfer the heat of each laser to the cooling medium pipeline of the heat dissipation plate.
Preferably, in order to further enhance the heat dissipation effect of the external cooling heat dissipation case, the heat dissipation fan is a water cooling exhaust fan, which can enhance the heat dissipation effect of the heat dissipation case.
Preferably, the external cooling heat dissipation case is arranged in an air-conditioning environment.
The temperature sensor is connected with a temperature control system, and the temperature control system controls the power of the thermoelectric cooler, the pressurizing circulating pump and the rotating speed of the cooling fan by receiving real-time temperature signals of the temperature sensor, so that the accurate control of different working temperature requirements of the red, green and blue monochromatic lasers is achieved.
The external cooling heat dissipation case is additionally arranged on the basis of the traditional laser projector host, the external cooling heat dissipation case is separated from the laser projector host, and the heat dissipation plate in the laser projector host is connected with the external cooling heat dissipation case through the cooling medium input hose and the cooling medium output hose, so that the heat of the laser projector host is well conducted to the external cooling heat dissipation case. In order to meet the heat dissipation requirements of a heat dissipation plate in a laser projector host on different lasers, the temperature sensors and the thermoelectric refrigerators are arranged on the different lasers, and the temperature information of the different lasers is transmitted to the temperature control system in real time through the temperature sensors, so that the working power of the thermoelectric refrigerators on the different lasers is accurately controlled, and the accurate heat dissipation control of the lasers with different temperature requirements on the heat dissipation plate is achieved. The external cooling heat dissipation case comprises a cooling medium pump, a cooling medium pipeline and a cooling medium pipeline, wherein the cooling medium pump is arranged in the external cooling heat dissipation case, and the cooling medium pipeline is connected with the cooling medium pump.
The utility model monitors the working temperatures of different lasers in the laser projector host through the temperature sensor, and achieves the purposes of adjusting the power of thermoelectric refrigerators on the different lasers, thereby realizing the real-time accurate monitoring and control of the working temperatures of the different lasers.
The utility model can meet the requirements of different working temperatures of the red, green and blue laser light sources, simultaneously adopts the mode of connecting the laser projector host with the external cooling heat dissipation case through the cooling medium input hose and the cooling medium output hose, adopts the water-cooling exhaust fan in the external cooling heat dissipation case and places the external cooling heat dissipation case in a proper environment, so that the laser projector host can be suitable for working in severe working environments such as high temperature, overcomes the problem that the laser projector host cannot be used in severe environments such as high temperature, and has important significance for expanding the use field of the laser projector.
Drawings
FIG. 1 shows a schematic diagram of a high temperature tolerant split laser projector system with an external cooling system; in the figure: the system comprises a laser projector host 1, a projector temperature control system 2, a heat dissipation plate 3, a cooling medium input hose 4, a pressurizing circulating pump 5, a cooling fan 6, a cooling medium output hose 7 and an external cooling system heat dissipation box 8, wherein the heat dissipation plate is provided with a heat dissipation pipeline in the laser projector host;
FIG. 2 is a schematic diagram of the heat dissipation structure for the red, green and blue monochromatic lasers in the host system of the high-temperature resistant split laser projector with the external cooling system; a, B, C in the figure represents a red, green, blue (RGB) three-color laser and its installation position, 301 is a temperature sensor in the laser, 302 is the laser, 303 is a cooling medium pipeline in a heat dissipation plate, and 304 is a thermoelectric refrigerator.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings.
As shown in fig. 1, a high temperature resistant split laser projector with an external cooling system comprises a laser projector host 1 with a heat dissipation plate 3 and a temperature control system 2, a cooling medium input hose 4, a cooling medium output hose 7, and an external cooling heat dissipation case 8, wherein a pressure circulating pump 5 for providing power for cooling medium circulation, a heat dissipation fan 6 for increasing heat dissipation capacity of the whole system, and a heat dissipation case pipeline 9 are arranged in the external cooling heat dissipation case 8, the laser projector host 1 is separated from the external cooling heat dissipation case 8, an input end of the cooling medium input hose 4 is connected with an output end of the pressure circulating pump 5, an output end of the cooling medium input hose 4 is connected with an input end of a heat dissipation plate cooling medium pipeline 303 in the heat dissipation plate 3 of the laser projector host 1, an input end of the cooling medium output hose 7 is connected with an output end of a heat dissipation plate cooling medium pipeline 303 in the heat dissipation plate 3 of the laser projector host 1, the output end of the cooling medium output hose 7 is connected with the input end of the pressurizing circulating pump 5 through a heat dissipation case pipeline 9, cooling media are filled in the cooling medium input hose 4, the cooling medium output hose 7, the heat dissipation plate cooling medium pipeline 303 and the heat dissipation case pipeline 9, the cooling medium input hose 4 and the cooling medium output hose 7 connect the heat dissipation plate cooling medium pipeline 303 with the heat dissipation case pipeline 9 in the external cooling heat dissipation case to form a closed circulating passage, and the pressurizing circulating pump 5 and the heat dissipation fan 6 are connected with the temperature control system 2 through wires.
The heat dissipation fan 6 is a water cooling exhaust fan.
The external cooling heat dissipation case 8 is arranged in an air conditioning environment.
As shown in fig. 2, a heat sink 3 is disposed in the laser projector host 1, three monochromatic lasers 302 of red, green and blue, a thermoelectric refrigerator 304 and a heat sink cooling medium pipeline 303 are disposed on the heat sink 3, a temperature sensor 301 connected to the temperature control system 2 through a wire is disposed on each laser 302, a heat sink surface on the laser 302 is connected to a cooling surface of the thermoelectric refrigerator 304, a hot surface of the thermoelectric refrigerator 304 is attached to the heat sink cooling medium pipeline 303, and the heat sink cooling medium pipeline 303 is disposed in the heat sink 3, so that the thermoelectric refrigerator 304 can transmit heat of different lasers 302 to the cooling medium pipeline 303 of the heat sink 3 in time. The temperature control system 2 collects working temperature information of different lasers in real time through the temperature sensor 301 to adjust the power of the thermoelectric refrigerator 304 on the different lasers 302, the pressure of the pressurizing and circulating pump 5 in the external cooling heat dissipation case 8 and the rotating speed of the heat dissipation fan 6, so as to achieve real-time and accurate monitoring and control of the working temperatures of the different lasers 302.
It should be noted that the specific embodiment of the high temperature tolerant split laser projector with the external cooling system described herein is only for illustrating the present invention and is not limited thereto. Obvious variations or modifications which are within the spirit of the utility model are possible within the scope of the utility model.
Claims (3)
1. The utility model provides an external split type laser projector of high temperature resistant of cooling system which characterized in that: the laser projector comprises a laser projector host with a heat dissipation plate and a temperature control system, a cooling medium input hose, a cooling medium output hose and an external cooling heat dissipation case, wherein a pressurization circulating pump for providing power for cooling medium circulation, a heat dissipation fan for increasing heat dissipation capacity of the whole system and a heat dissipation case pipeline are arranged in the external cooling heat dissipation case, the laser projector host is separated from the external cooling heat dissipation case, the input end of the cooling medium input hose is connected with the output end of the pressurization circulating pump, the output end of the cooling medium input hose is connected with the input end of a cooling medium pipeline of the heat dissipation plate in the heat dissipation plate of the laser projector host, the input end of the cooling medium output hose is connected with the output end of a cooling medium pipeline of the heat dissipation plate in the heat dissipation plate of the laser projector host, and the output end of the cooling medium output hose is connected with the input end of the pressurization circulating pump through the heat dissipation case pipeline, cooling media are filled in a cooling medium input hose, a cooling medium output hose, a cooling medium pipeline of a heat dissipation plate and a heat dissipation machine box pipeline, the cooling medium input hose and the cooling medium output hose connect the cooling medium pipeline of the heat dissipation plate with the heat dissipation machine box pipeline in an external cooling heat dissipation machine box to form a closed circulation passage, and a pressurizing circulation pump and a heat dissipation fan are connected with a temperature control system through wires; the laser projector is characterized in that a heat dissipation plate is arranged in a laser projector host, three monochromatic lasers of red, green and blue, a thermoelectric refrigerator and a heat dissipation plate cooling medium pipeline are arranged on the heat dissipation plate, a temperature sensor connected with a temperature control system through a lead is arranged on each monochromatic laser, a heat dissipation surface on each laser is connected with a refrigeration surface of the thermoelectric refrigerator, a hot surface of the thermoelectric refrigerator is attached to the heat dissipation plate cooling medium pipeline, and the heat dissipation plate cooling medium pipeline is arranged in the heat dissipation plate, so that the thermoelectric refrigerator can timely transfer the heat of each laser to the cooling medium pipeline of the heat dissipation plate.
2. The high temperature resistant split laser projector with the external cooling system of claim 1, wherein: the hot air fan is a water-cooling exhaust fan.
3. The high temperature resistant split laser projector with the external cooling system of claim 1, wherein: the external cooling heat dissipation case is arranged in an air conditioning environment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122448290.4U CN215986869U (en) | 2021-10-12 | 2021-10-12 | External high temperature resistant split type laser projector of cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122448290.4U CN215986869U (en) | 2021-10-12 | 2021-10-12 | External high temperature resistant split type laser projector of cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215986869U true CN215986869U (en) | 2022-03-08 |
Family
ID=80568991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122448290.4U Active CN215986869U (en) | 2021-10-12 | 2021-10-12 | External high temperature resistant split type laser projector of cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215986869U (en) |
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2021
- 2021-10-12 CN CN202122448290.4U patent/CN215986869U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Cheng Ruijian Inventor before: Cheng Duanjian |
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| CB03 | Change of inventor or designer information |