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An air conditioner low temperature heating start control method, device and air conditioner

A low-temperature and air-conditioning technology, which is applied in the field of equipment, air conditioners, and low-temperature heating start-up control methods for air conditioners, and can solve problems such as low oil discharge rate of heat exchanger compressors, difficulty in realizing rapid heating of air conditioners, and affecting system reliability.

Active Publication Date: 2020-04-24
NINGBO AUX ELECTRIC
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, due to the low ambient temperature, it takes a long time for the heat exchanger to rise to a high temperature state; as the ambient temperature is lower, the refrigeration oil is more likely to dissolve in the refrigerant, and the oil discharge is larger, which affects the reliability of the system
When the existing air conditioner starts heating at low temperature, it is difficult to ensure that the heat exchanger rises to a high temperature state at a fast enough speed and the oil discharge rate of the compressor is low, so it is difficult to achieve rapid heating of the air conditioner

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  • An air conditioner low temperature heating start control method, device and air conditioner
  • An air conditioner low temperature heating start control method, device and air conditioner
  • An air conditioner low temperature heating start control method, device and air conditioner

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[0051] 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.

[0052] It should be noted that the start-up control in this application is a process from when the compressor receives a start-up command to when the entire air-conditioning system is basically stable. The existing entire start-up time is generally 0-30 minutes, but this start-up time is too long for the rapid heating to be achieved in this application.

[0053] The solution claimed in this application is applied to the control within 5 minutes after the air conditioner receives the start-up command. At this stage, due to the short time, many similar control methods in the prior art compress the start-up time from 30 minutes to 5 minutes. Both are not applicable; and due to the compression of start-up time, the instability of the system in...

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Abstract

A method and a device for controlling low-temperature heating startup of an air conditioner, an air conditioner, and a storage medium. The method comprises: acquiring an ambient temperature; if the ambient temperature is less than a set temperature, sending a first startup instruction to a fan of an outdoor unit, and controlling the fan to start up and run at the highest rotation speed; after a first duration, sending a second startup instruction to a compressor to control the compressor to start up; and after a fifth duration, turning on an electronic expansion valve of the outdoor unit. The method for controlling low-temperature heating startup of an air conditioner can quickly establish the degree of superheat of a system while ensuring a low amount of oil discharged from the system, thereby improving the heat exchange effect, enabling the compressor to be heated quickly, reducing the amount of oil discharged, ensuring the reliability of the system, and achieving the quick heating for low-temperature heating startup of the air conditioner.

Description

technical field [0001] The present invention relates to the technical field of air conditioners, in particular to an air conditioner low temperature heating start control method and device and an air conditioner. Background technique [0002] When the air conditioner starts heating in a low temperature environment, the heat exchanger must be raised to a high temperature state at a fast enough speed, and the oil discharge rate of the compressor must be low to achieve rapid heating. However, due to the low ambient temperature, it takes a long time for the heat exchanger to rise to a high temperature state; as the ambient temperature is lower, the refrigeration oil is more likely to dissolve in the refrigerant, and the oil discharge is larger, which affects the reliability of the system. When the existing air conditioner starts heating at low temperature, it is difficult to simultaneously ensure that the heat exchanger rises to a high temperature state at a fast enough speed an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/64F24F11/871F24F11/61F24F11/86F24F11/84F24F110/12
CPCF24F11/61F24F11/64F24F11/84F24F11/86F24F11/871F24F2110/12
Inventor 邓赛峰刘合心陈华宋磊
Owner NINGBO AUX ELECTRIC
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