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Chang Jia meiyin international limited
Tung Choi Street, Mong Kok, Kowloon, Hong Kong 1A-1L-Wai commercial building, Room 10/F1003
Tel: 00852-27592923
Fax: 00852-27592926
Beijing Chang Camry technology limited
123th, Zhongguancun East Road, Haidian District, Beijing C-105
Zip code: 100,089
Tel: 010-62130067
Fax: 010-62136107
Email: BJ@ccyscreen.com
24-hour consultation: 13,581,676,957
Shenzhen Chang Camry Technology Ltd
Block c, SEG Technology Park, building 3, room 512
Tel: 0755-83953075
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Laser projector cooling technology analysis
No matter how perfect laser projector cooling function design, difficult to guarantee high fever caused by prolonged use of the projector, as the projector itself will produce a large amount of heat, a lot of components are sensitive to temperature and, therefore, in order to ensure that the projector is safe, high-temperature thermal protection become a design requirement of all the projectors must be taken into account. Inside the LCD projector mainly by fan groups to the core portion of the projectors and power supplies, and other major heat sources for heat, at the same time in order to ensure that the projector's life, real-time monitoring of temperature sensors installed inside the projector the projector temperature changes, and feedback to processing circuit. Projector when in cooling fans under the influence of, in a thermal equilibrium State. This status is associated with outside temperature, when the outside temperature exceeds a certain temperature (mostly 35~36℃), the internal temperature exceeds the rated value of the vital parts. Important parts of the cooling temperature sensor has its own (such as LCD, light bulbs, power over near the radiator), once the temperature reaches the threshold above, inside the projector will start and automatically turn off the projector. This is the projector's cooling system and the basic working principle of high temperature thermal protection function.
This feature ensures maximum service life of the projector. As the laser projector using the extension of the scope of, as well as in individual areas, such as: high strength in the fields of education, monitoring, high-temperature thermal protection in these areas from the protection role to influence the use of the role change of the projector. In addition, in order to enhance the ventilation effect, the projector of the noise from the cooling fan will also have an impact on users. Visible cooling and temperature protection features required of a projector, there is a contradiction between this function and users.
Projector for the best schools throughout the country use surveys, survey results show that currently high temperature thermal protection in excess of 50% schools receive adequate attention, projector usage in high school, school classroom environment is not ideal, mostly big classroom of 100~200 people, indoor temperatures up to 35 ° c, projector working hours closer to 8 hours a day.
High-temperature thermal protection of the marked increase in the frequency of occurrence of the phenomenon of the projector, and directly affected the normal teaching activities. In order to solve this problem, some schools are considering the addition of air conditioning equipment, lower the ambient temperature, but because of a substantial investment in, so only schools with sufficient funds. Currently, schools in general practice is to increase the power of a large exhaust fan on the back of the projector, but depending on the actual test, a method to reduce the frequency of high-temperature thermal protection with no apparent help. This is because the projectors in the classrooms mostly used lifting, indoor course usually more in the classroom, room temperature is 32 ° c, the indoor temperature reached 36 degrees centigrade at the top (starting temperature of 36 ° c for thermal protection of the projector).
Because the ambient temperature has reached its critical temperature, install the fan does not make the air temperature drops into the projector and fans outside the machine, you cannot effectively improve the air velocity in the projector, install the fan does not reduce the frequency of high-temperature thermal protection. According to the present situation of domestic users to use, cooperation with the audio-visual Center of Tsinghua University, for high temperature thermal protection, the proposed solution. For domestic users have been using the projector, can be achieved with external cooling products delayed high-temperature thermal protection purposes. The products by lowering the air temperature entering the projector, to slow down the speed of temperature rise within the projector, thus prolonging the projector working hours.
This feature ensures maximum service life of the projector. As the laser projector using the extension of the scope of, as well as in individual areas, such as: high strength in the fields of education, monitoring, high-temperature thermal protection in these areas from the protection role to influence the use of the role change of the projector. In addition, in order to enhance the ventilation effect, the projector of the noise from the cooling fan will also have an impact on users. Visible cooling and temperature protection features required of a projector, there is a contradiction between this function and users.
Projector for the best schools throughout the country use surveys, survey results show that currently high temperature thermal protection in excess of 50% schools receive adequate attention, projector usage in high school, school classroom environment is not ideal, mostly big classroom of 100~200 people, indoor temperatures up to 35 ° c, projector working hours closer to 8 hours a day.
High-temperature thermal protection of the marked increase in the frequency of occurrence of the phenomenon of the projector, and directly affected the normal teaching activities. In order to solve this problem, some schools are considering the addition of air conditioning equipment, lower the ambient temperature, but because of a substantial investment in, so only schools with sufficient funds. Currently, schools in general practice is to increase the power of a large exhaust fan on the back of the projector, but depending on the actual test, a method to reduce the frequency of high-temperature thermal protection with no apparent help. This is because the projectors in the classrooms mostly used lifting, indoor course usually more in the classroom, room temperature is 32 ° c, the indoor temperature reached 36 degrees centigrade at the top (starting temperature of 36 ° c for thermal protection of the projector).
Because the ambient temperature has reached its critical temperature, install the fan does not make the air temperature drops into the projector and fans outside the machine, you cannot effectively improve the air velocity in the projector, install the fan does not reduce the frequency of high-temperature thermal protection. According to the present situation of domestic users to use, cooperation with the audio-visual Center of Tsinghua University, for high temperature thermal protection, the proposed solution. For domestic users have been using the projector, can be achieved with external cooling products delayed high-temperature thermal protection purposes. The products by lowering the air temperature entering the projector, to slow down the speed of temperature rise within the projector, thus prolonging the projector working hours.