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A control method and device for starting a compressor, and an air conditioner

A control method and compressor technology, applied in heating and ventilation control systems, heating methods, mechanical equipment, etc., can solve problems such as balancing high pressure

Active Publication Date: 2021-09-21
NINGBO AUX ELECTRIC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention solves the problem that the existing pressure balance technology cannot simply and efficiently balance the high pressure and low pressure when the air conditioner starts

Method used

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  • A control method and device for starting a compressor, and an air conditioner
  • A control method and device for starting a compressor, and an air conditioner
  • A control method and device for starting a compressor, and an air conditioner

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Embodiment Construction

[0049] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0050] When the air conditioner is restarted after a short shutdown, the high pressure and low pressure of the system refrigerant are not completely balanced, and it is easy to start under pressure at this time. Existing air conditioner pressure balance technology sets various passages between the return air pipe of the compressor and the exhaust port of the compressor, and controls the connection or disconnection of the above passages through the control valve, so as to realize the pressure balance of the air conditioner. However, the existing air-conditioning pressure balance technology balances the pressure by setting additional hardware facilities, which is not conducive to cost saving, and the control operation is complicated, the reli...

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Abstract

A control method, device and air conditioner for starting a compressor, relating to the technical field of air conditioners, including: when the compressor is started, acquiring a mode signal, a system high pressure, and a system low pressure; according to the mode signal, the system high pressure and the system low pressure The pressure judges whether the preset condition of pressure balance is satisfied; if the preset condition of pressure balance is satisfied, the initial load of the compressor is controlled to be changed, and the pressure difference between the high-pressure side and the low-pressure side of the refrigerant of the system is controlled to balance the pressure. When the air conditioner is restarted after a short shutdown, the high pressure and low pressure of the system refrigerant are not completely balanced, and the start of the air conditioner when the pressure is not balanced is likely to cause damage to the air conditioner. The invention solves the problem of pressure imbalance when the compressor is started by changing the operating state of the compressor and the pressure difference between the high and low pressures of the system refrigerant, ensuring that the system can balance the pressure in time and work normally when the system is started with pressure, and avoid damage caused by the pressure imbalance. Improve user comfort.

Description

technical field [0001] The present invention relates to the technical field of air conditioners, in particular to a control method and device for starting a compressor and an air conditioner. Background technique [0002] When the air conditioner is restarted after a short shutdown, the high pressure of the refrigerant at the discharge port of the compressor and the low pressure of the refrigerant at the air return port of the compressor are not completely balanced. When the high pressure of the refrigerant and the low pressure of the refrigerant have not reached the pressure balance, the load on the compressor will be too large. Thus, it is easy to cause damage to the motor of the compressor, which adversely affects the reliability of the operation of the entire air-conditioning unit. In the prior art, in order to solve the above-mentioned problems, when receiving an instruction to start the air conditioner, the air conditioning system generally sets a waiting period until ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/30F24F11/64F24F11/86F24F11/88F24F140/12
CPCF24F11/30F24F11/64F24F11/86F24F11/88F24F2140/12
Inventor 李存永
Owner NINGBO AUX ELECTRIC
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