Air conditioning system, liquid level detection device and method, water pumping device and method

A liquid level detection and liquid level technology, which is applied in the fields of liquid level detection devices, air conditioning systems, and water pumping equipment, can solve the limitation of the application range of temperature sensor type liquid level detection devices, the large environmental impact of liquid level detection devices, and the problems of temperature sensor type liquid level detection devices. The problems such as the failure of the bit detection device, to achieve the effect of improving the sensitivity and reliability, and increasing the scope of application

Active Publication Date: 2015-08-26
GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the liquid temperature is the same as the ambient temperature, the temperature sensor type liquid level detection device will fail, that is, the liquid level detection device is greatly affected by the environment, and the application range of the temperature sensor type liquid level detection device is greatly limited

Method used

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  • Air conditioning system, liquid level detection device and method, water pumping device and method
  • Air conditioning system, liquid level detection device and method, water pumping device and method
  • Air conditioning system, liquid level detection device and method, water pumping device and method

Examples

Experimental program
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Effect test

example 1

[0111] like Figure 4 As shown, the predetermined temperature field is a constant temperature field, and the initial value T of the predetermined temperature field is detected 0 , and store it in the controller 4 in advance. In addition, the temperature threshold ΔT needs to be stored in the controller 4 in advance. 0 .

[0112] The temperature value corresponding to the temperature signal detected by the temperature sensor 2 for the first time is T 1 , the controller 4 calculates the temperature value T 1 with T 0 Difference ΔT 1 , where ΔT 1 =|T 1 -T 0 |, and compare ΔT 1 Is it greater than the pre-stored temperature threshold ΔT 0 ;

[0113] If not, delete T 1 and ΔT 1 , continue to be detected by the temperature sensor 2;

[0114] If so, then start the timer, and store T in controller 4 1 and ΔT 1 , and continue the second, third, ..., nth iterative detection, so that the controller 4 can obtain the corresponding temperature value T 2 , T 3 ,...,T n , and...

example 2

[0117] like Figure 5 As shown, the predetermined temperature field is a constant temperature field, and the initial value T of the predetermined temperature field is detected 0 , and store it in the controller 4 in advance. In addition, the temperature threshold ΔT needs to be stored in the controller 4 in advance. 0 .

[0118] The temperature value corresponding to the temperature signal detected by the temperature sensor 2 for the first time is T 1 , the temperature value corresponding to the temperature signal detected for the second time is T 2 , the controller 4 calculates the temperature value T 1 with T 2 arithmetic mean of in then calculate with T 0 difference in and compare Is it greater than the pre-stored temperature threshold ΔT 0 ;

[0119] If not, delete T 1 , T 2 , and Continue to detect by temperature sensor 2;

[0120] If so, then start the timer, and store T in controller 4 1 , T 2 , and And continue the third, fourth, ..., nt...

example 3

[0123] like Figure 6 As shown, the predetermined temperature field is a constant temperature field, and the initial value T of the predetermined temperature field is detected 0 , and store it in the controller 4 in advance. In addition, the temperature threshold ΔT needs to be stored in the controller 4 in advance. 0 .

[0124] The temperature value corresponding to the temperature signal detected by the temperature sensor 2 for the first time is T 1 , calculate the temperature value T 1 with T 0 Difference ΔT 1 , where ΔT 1 =|T 1 -T 0 |;

[0125] The temperature value corresponding to the temperature signal detected by the temperature sensor 2 for the second time is T 2 , calculate the temperature value T 2 with T 0 Difference ΔT 2 , where ΔT 2 =|T 2 -T 0 |;

[0126] Controller 4 calculates ΔT 1 with ΔT 2 arithmetic mean of in and compare Is it greater than the pre-stored temperature threshold ΔT 0 ;

[0127] If not, delete T 1 , T 2 , ΔT 1 , ΔT ...

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Abstract

The invention relates to an air conditioning system, a liquid level detection device and method, a water pumping device and method. The liquid level detection device is used for detecting whether liquid in a container reaches the preset liquid level and comprises a temperature adjusting unit, a temperature sensor and a controller. The temperature sensor is arranged in the position capable of making contact with the liquid when the liquid reach the preset liquid level. The temperature adjusting unit is arranged in the position of a preset temperature field capable of acquiring the temperature different from the temperature of the liquid around the temperature sensor. The controller is in signal connection with the temperature sensor and can receive temperature signals detected and transmitted by the temperature sensor and confirm whether the liquid reaches the preset liquid level according to the corresponding temperature change of the temperature signals. By the adoption of the liquid level detection device, the problem that the temperature sensor fails when the temperature of the liquid and the temperature of the environment are different in the prior art can be solved, the liquid level detection device is not limited to the temperature of the environment, the sensitivity and the reliability of the liquid level detection device are improved, and the application range is enlarged.

Description

technical field [0001] The invention relates to the technical field of electronic devices, in particular to an air conditioning system, a liquid level detection device and method, and water pumping equipment and method. Background technique [0002] At present, there are mainly two types of liquid level detection devices in the prior art: a float switch and a temperature sensor. [0003] Such as figure 1 As shown, it is an assembly diagram of an old-fashioned float switch in the prior art. The mechanical float switch 106 is connected to the water pump. The float inside the float switch 106 rises and falls with the water surface, and the magnetic substance inside the float can control the flow of the wire. On and off, and then control the operation of the pump. When the float switch 106 detects that the water level reaches the critical water level 104, the water suction port 103 of the water pump is opened, and the lower pump body 102 starts, and water is drawn out of the w...

Claims

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Application Information

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IPC IPC(8): F24F11/00
CPCF24F11/30F24F11/52F24F11/62F24F2110/00
Inventor 李要伟
Owner GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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