Control method and device of unit and air conditioner

A control method and unit technology, applied in heating and ventilation control systems, mechanical equipment, high-efficiency adjustment technology, etc., can solve problems such as compressor overload protection and compressor damage, and achieve the effect of reducing overload protection and reducing damage rate.

Active Publication Date: 2019-07-02
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a control method and device for a unit, and an air conditioner, so as to at least solve the technical problem in the related art that compressor overload protection is prone to occur when the air conditioner unit is running, resulting in damage to the compressor

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  • Control method and device of unit and air conditioner
  • Control method and device of unit and air conditioner
  • Control method and device of unit and air conditioner

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Embodiment Construction

[0027] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0028] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention discloses a control method and device of a unit and an air conditioner. The control method of the unit comprises the steps that a first change rate of an inner tube temperature in the unit and a first change speed of the rate are obtained; the first change rate is compared with a preset change rate, and the first change speed of the rate is compared with a preset change speed; and ifthe first change rate is larger than or equal to the preset change rate and the first change speed of the rate is larger than or equal to the preset change speed, the rotating speed of a draught fanof the unit is adjusted. According to the control method and device of the unit and the air conditioner, the technical problem that when an air conditioner unit operates in a related technology, overload protection of a compressor is prone to occurring and causes the damage on the compressor is solved.

Description

technical field [0001] The invention relates to the technical field of air conditioner control, in particular to a control method and device for a unit, and an air conditioner. Background technique [0002] In the related art, when the unit of the air conditioner is controlled for heating, the indoor ambient temperature is often much higher than the outdoor ambient temperature, which makes it easy to reach the limit value of the air conditioner compressor, which will reduce the overload operation of the compressor. Shorten the service life of the compressor. For example, for a fixed-frequency air conditioner, the heating effect of the fixed-frequency air conditioner is better at the outdoor critical point and freezing point, and the indoor temperature can reach the set temperature, but the indoor unit is often in a high-temperature environment, and the The outdoor unit is indeed in the low-temperature environment. At this time, the compressor pressure ratio increases. At thi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/64F24F11/77F24F140/20
CPCF24F11/64F24F11/77F24F2140/20Y02B30/70
Inventor 方祥建夏光辉王现林罗永前施清清张永亮汤梓颖
Owner GREE ELECTRIC APPLIANCES INC
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