Method for preventing indoor coiled-tube from over-low temp., and air-conditioner thereof

An indoor coil and coil temperature technology, applied in the field of air conditioners, can solve the problems of affecting the service life of the compressor, increasing the energy consumption of the air conditioner, and frequently starting and stopping the outdoor fan, so as to reduce the number of times of starting and stopping, prolong the service life and save energy. The effect of cost of use

Inactive Publication Date: 2005-02-16
HAIER GRP CORP +1
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The compressor will start and stop frequently due to the low temperature of the indoor evaporator, which not only increases the energy consumption of the air conditioner, but also directly affects the service life of the compressor
[0005] 2. Especially in communication base stations or some commercial facilities (such as skating rinks), due to the needs of working equipment or use, it is necessary to perform refrigeration when the outdoor environment is at low temperature. The above scheme will not reach the set temperature. The outdoor fan frequently starts and stops, and the working temperature cannot be reached within the design time, so the working requirements under special working conditions cannot be guaranteed.

Method used

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  • Method for preventing indoor coiled-tube from over-low temp., and air-conditioner thereof
  • Method for preventing indoor coiled-tube from over-low temp., and air-conditioner thereof
  • Method for preventing indoor coiled-tube from over-low temp., and air-conditioner thereof

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Embodiment Construction

[0031] refer to Figure 1-Figure 4 As shown, the coil tube anti-low temperature method of the present invention is to cancel the relay on the main computer board of the existing air conditioner and provide a control method for dynamic adjustment.

[0032] There is a coil temperature detection control module solidified in the single-chip CPU of the air conditioner. When the computer board is first installed, there are critical standard temperatures T1 and T2 solidified in the CPU, where T1 is the critical temperature for starting the fan, and T2 is the termination of the fan. working critical temperature.

[0033] Wherein, the value of T1 is 7°C, and the value of T2 is 0°C.

[0034] An optocoupler thyristor chip is added on the computer board.

[0035] After the air conditioner is powered on, the CPU calls the coil temperature detection control module and receives the coil surface temperature value T input by the temperature sensor.

[0036] Such as figure 2 As shown, firs...

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Abstract

This is a method to prevent the indoor coil-pipe's temperature over lower, and its air conditioner. In the CPU of monotype set, install a temperature test block of the coil-pipe. Use the light-coupled silicon controlled method, according to the temperature of test value to control the alternating voltage of outdoor set, then to realize control the rotating speed of blower in the outdoor set. This invention provide a new electric-control method for fixed-frequency air conditioner, it can dynamic control the rotating speed of outdoor set's blower, to adjust the exchange efficient of this system in certain time interval.

Description

technical field [0001] The invention relates to a method for preventing the temperature of an indoor coil from being too low and an air conditioner, in particular to a technical proposal for dynamically adjusting the rotational speed of an outdoor fan according to the temperature of the indoor coil. Background technique [0002] Along with the development of social economy at present, air conditioner has been applied more and more. When the existing fixed-frequency air conditioner is cooling, in order to prevent the indoor coil temperature from being too low and excessive frosting, a temperature sensor and a relay are generally installed on the host computer. When the CPU on the computer board detects the temperature After the temperature on the sensor reaches or exceeds the set temperature, the compressor and the outdoor fan will automatically stop and enter the overcooling protection, thereby terminating the refrigeration operation of the entire system. [0003] Although ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/76
CPCY02B30/746
Inventor 林凡卿刘俊东
Owner HAIER GRP CORP
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