Frequency conversion refrigeration device control method, control device and refrigerator

The technology of a refrigeration device and a control method is applied in the field of control devices, refrigerators, and control methods of variable frequency refrigeration devices, which can solve problems such as inability to adapt well, parts heating, etc., to reduce heat generation, reduce ineffective energy consumption, and improve reliability. Effect

Active Publication Date: 2019-06-11
HEFEI MIDEA REFRIGERATOR CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if you choose a higher carrier frequency to work, it cannot adapt to all actual working conditions well, and it is easy to cause problems such as component heating.

Method used

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  • Frequency conversion refrigeration device control method, control device and refrigerator
  • Frequency conversion refrigeration device control method, control device and refrigerator
  • Frequency conversion refrigeration device control method, control device and refrigerator

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Embodiment Construction

[0048] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0049] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

[0050] Refer below Figure 1 to Figure 3 A control method of an inverter refrigeration device according to some embodiments of the present invention is described.

[0051] Such as figure 1 As show...

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Abstract

The invention provides a control method and a control device for a frequency-conversion refrigeration device, and a refrigerator. The control method for the frequency-conversion refrigeration device comprises the following steps: recording a carrier frequency of a frequency converter as an initial frequency during running of the frequency-conversion refrigeration device; detecting a temperature value T0 of a power switch device in the frequency-conversion refrigeration device; comparing the temperature value T0 of the power switch device with a preset temperature value T1; and adjusting the carrier frequency according to a comparison result. According to the control method for the frequency-conversion refrigeration device, which is provided by the invention, the temperature value T0 of the power switch device is compared with the preset temperature value T1, and the carrier frequency is adjusted to a proper range according to the comparison result. Thus heating of the power device can be reduced, and the reliability of the frequency converter is improved. Meanwhile, the power switch device is also protected, the service life of the frequency-conversion refrigeration device is prolonged, ineffective energy consumption is effectively reduced, and energy conservation and environment protection are achieved.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a control method, a control device and a refrigerator of a frequency conversion refrigeration device. Background technique [0002] Nowadays, almost every family has a refrigerator, which has become a considerable part of household electricity because of its continuous power supply throughout the day. In order to reduce the power consumption of refrigerators, save electricity and protect the environment, many families choose frequency conversion refrigerators with better cooling effect and more energy-saving and environmental protection. [0003] In the frequency conversion control technology, the carrier frequency of the inverter determines the number of times the power switching device of the inverter is turned on and off, and it affects the power loss of the power module. When the carrier frequency is high, the current waveform is sinusoidal and smooth, but the cumulati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25D29/00
CPCF25D29/003
Inventor 方园申东熙孙超张宝玉吴贤萍邵军
Owner HEFEI MIDEA REFRIGERATOR CO LTD
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