Compressor frequency control method and device, and air conditioner

A technology of compressor frequency and control method, which is applied in heating and ventilation control systems, heating methods, mechanical equipment, etc., and can solve problems such as air conditioner shutdown and impact on compressor life.

Inactive Publication Date: 2018-12-28
NINGBO AUX ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the prior art, the above startup process will cause the compressor to run rapidly and at high frequency, which will have a great impact on the life of the compressor, and even cause the protection of the compressor current module to stop the operation of the air conditioner instantly.

Method used

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  • Compressor frequency control method and device, and air conditioner
  • Compressor frequency control method and device, and air conditioner
  • Compressor frequency control method and device, and air conditioner

Examples

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no. 1 example

[0059] The embodiment of the present invention provides an air conditioner 1, which is used to realize the soft start of the compressor 4 while adjusting the indoor temperature. see figure 1 , is a functional block diagram of the air conditioner 1 provided by the embodiment of the present invention. The air conditioner 1 includes: a controller 2 , a memory 3 , a compressor 4 and a compressor frequency control device 5 . Wherein, the controller 2 is electrically connected to the memory 3 and the compressor 4, and at least one of the compressor frequency control methods may be stored in the memory 3 in the form of software or firmware.

[0060] Among them, the memory 3 can be used to store software programs and units, such as the program instructions / units corresponding to the compressor frequency control device 5 and the method in the embodiment of the present invention, the controller 2 controls the frequency of the compressor stored in the memory 3 by running The software p...

no. 2 example

[0064] The embodiment of the present invention provides a compressor frequency control method, which is applied to the air conditioner 1 provided in the first embodiment, and is used to realize the soft start of the compressor 4, so as to prevent the compressor 4 from continuously operating at a high frequency since the start of the compressor. The influence caused by the service life of machine 4. see figure 2 , is a flowchart of a compressor frequency control method provided by an embodiment of the present invention. The compressor frequency control method includes:

[0065] Step S201: Obtain the running time of the compressor 4 .

[0066] When the controller 2 receives the start command, it starts counting, and controls the compressor 4 to run at the preset first operating frequency at the first preset time after receiving the start command, and the second time after receiving the start command. The preset time controls the compressor 4 to run according to the preset se...

no. 3 example

[0105] see Figure 4 , Figure 4 A functional block diagram of a compressor frequency control device 5 provided for a preferred embodiment of the present invention. It should be noted that the compressor frequency control device 5 provided in this embodiment is applied to the air conditioner 1 provided in the first embodiment, and its basic principles and technical effects are the same as those of the above-mentioned embodiments. For the parts not mentioned in the example part, reference may be made to the corresponding content in the above-mentioned embodiments. The compressor frequency control device 5 includes: an operation parameter acquisition unit 6 , a judging unit 7 , a frequency range determination unit 8 , a calculation unit 9 , an operation frequency adjustment unit 10 and an external fan speed adjustment unit 11 .

[0106] Wherein, the operation parameter acquiring unit 6 is used to acquire the running time of the compressor 4 .

[0107] It can be understood tha...

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PUM

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Abstract

The invention provides a compressor frequency control method and device, and an air conditioner, and relates to the technical field of air conditioners. According to the compressor frequency control method and device, by obtaining the operating time of a compressor, when the operating time is larger than or equal to a preset first time threshold value, the outdoor environment temperature and the indoor environment temperature are obtained; then, the operating frequency range of the compressor is determined according to the temperature range of the outdoor environment temperature; then, according to the indoor environment temperature and the preset target temperature, the temperature difference is calculated; and finally, according to the temperature difference and the operating frequency range, the operating frequency of the compressor is adjusted. By applying the steps, after the compressor is started, the operating frequency of the compressor can rise slowly in a segmental mode, softstarting of the compressor is achieved, and thus influences of the situation that the compressor has continuously operated at the high frequency since starting on the life of the compressor are avoided.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a compressor frequency control method and device and an air conditioner. Background technique [0002] With the continuous improvement of the economy, the application of air conditioners is becoming more and more extensive. Among them, inverter air conditioners are becoming more and more popular among users due to their power saving and energy saving features. At the same time, inverter air conditioners have more and more functions and modes. For example, many companies are promoting 1-minute refrigeration, Cooling and other functions can quickly cool and heat the room. [0003] However, in the prior art, the above-mentioned start-up process will cause the compressor to run rapidly and at high frequency, thereby greatly affecting the life of the compressor, and even instantly causing the protection of the compressor current module to stop the operation of the air condit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/30F24F11/64F24F11/70F24F11/88
CPCF24F11/30F24F11/64F24F11/70F24F11/88
Inventor 左泽明秦宪杨明登李海利杨辉
Owner NINGBO AUX ELECTRIC
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