CN-122015257-A - Control method, device, storage medium and program product for air conditioner

CN122015257ACN 122015257 ACN122015257 ACN 122015257ACN-122015257-A

Abstract

The application discloses a control method, equipment, a storage medium and a program product of an air conditioner, which relate to the technical field of air conditioner control and comprise the steps of acquiring initial ambient temperature of a space where an outdoor unit is located when the air conditioner starts a refrigeration mode, acquiring outdoor ambient temperature of the space where the outdoor unit is located after starting a preset time, determining an ambient temperature difference value between the outdoor ambient temperature and the initial ambient temperature, determining a heat dissipation state of the outdoor unit according to the ambient temperature difference value, determining a fan rotating speed of the outdoor unit according to the heat dissipation state and a current compressor frequency, and controlling the operation of the outdoor unit according to the fan rotating speed. The application improves the accuracy of fan control so as to ensure that the outdoor unit maintains a good heat dissipation state.

Inventors

WANG HONGCHEN
FAN RUITAO
LIU YANFEI
QI WENDUAN

Assignees

广东美的制冷设备有限公司

Dates

Publication Date: 20260512
Application Date: 20241111

Claims (14)

1. A control method of an air conditioner, the method comprising: when the air conditioner starts a refrigeration mode, acquiring an initial environmental temperature of a space where the outdoor unit is located, and after starting a preset time, acquiring an outdoor environmental temperature of the space where the outdoor unit is located; Determining an ambient temperature difference value between the outdoor ambient temperature and the initial ambient temperature, and determining a heat dissipation state of the outdoor unit according to the ambient temperature difference value; and determining the fan rotating speed of the outdoor unit according to the heat radiation state and the current compressor frequency, and controlling the operation of the outdoor unit according to the fan rotating speed.
2. The method of claim 1, wherein the step of determining the heat radiation state of the outdoor unit according to the ambient temperature difference value comprises: when the ambient temperature difference is greater than a preset difference threshold, determining that the heat dissipation state of the outdoor unit is an abnormal heat dissipation state; and when the ambient temperature difference is smaller than or equal to a preset difference threshold and the initial ambient temperature is smaller than the preset temperature threshold, determining that the heat dissipation state of the outdoor unit is a normal heat dissipation state.
3. The method of claim 2, wherein the step of determining the fan speed of the outdoor unit according to the heat radiation state and the current compressor frequency comprises: when the heat radiation state of the outdoor unit is an abnormal heat radiation state, determining an increment rotating speed according to the current compressor frequency and/or the temperature range of the outdoor environment temperature; Determining a frequency difference between the target compressor frequency and the current compressor frequency; And determining the fan rotating speed according to a target rotating speed and/or the frequency difference value and the increment rotating speed, wherein the target rotating speed and the target compressor frequency are determined by initial control logic of the air conditioner.
4. A method according to claim 3, wherein said step of determining an incremental rotational speed from a current compressor frequency and/or a temperature range to which said outdoor ambient temperature belongs comprises: when the current compressor frequency is reduced and the outdoor environment temperature is less than or equal to a preset first temperature threshold value, determining the increment rotating speed as a first rotating speed value; the step of determining the fan rotation speed according to the target rotation speed and/or the frequency difference value and the increment rotation speed comprises the following steps: determining whether beat frequency abnormal sound or beat frequency abnormal sound risks exist in the air conditioner according to the target rotating speed and the target compressor frequency; When beat frequency abnormal sound exists, the target rotating speed is redetermined according to the current compressor frequency, and the fan rotating speed is determined according to the redetermined target rotating speed, the frequency difference value and the first rotating speed value; And when the beat frequency abnormal sound risk exists, determining the fan rotating speed according to the target rotating speed, the frequency difference value and the first rotating speed value.
5. A method according to claim 3, wherein said step of determining an incremental rotational speed from a current compressor frequency and/or a temperature range to which said outdoor ambient temperature belongs comprises: Determining the increment rotating speed as a second rotating speed value when the current compressor frequency is reduced and the outdoor environment temperature is greater than a preset first temperature threshold and less than or equal to a preset second temperature threshold; the step of determining the fan rotation speed according to the target rotation speed and/or the frequency difference value and the increment rotation speed comprises the following steps: And determining the rotating speed of the fan according to the target rotating speed, the frequency difference value and the second rotating speed value.
6. A method according to claim 3, wherein said step of determining an incremental rotational speed from a current compressor frequency and/or a temperature range to which said outdoor ambient temperature belongs comprises: when the current compressor frequency is reduced, and the outdoor environment temperature is greater than a preset second temperature threshold and less than or equal to a preset third temperature threshold, determining the increment rotating speed as a third rotating speed value; the step of determining the fan rotation speed according to the target rotation speed and/or the frequency difference value and the increment rotation speed comprises the following steps: and determining the rotating speed of the fan according to the target rotating speed, the frequency difference value and the third rotating speed value.
7. A method according to claim 3, wherein said step of determining an incremental rotational speed from a current compressor frequency and/or a temperature range to which said outdoor ambient temperature belongs comprises: determining that the incremental rotation speed is a fourth rotation speed value when the current compressor frequency is reduced and the outdoor ambient temperature is greater than a preset third temperature threshold; the step of determining the fan rotation speed according to the target rotation speed and/or the frequency difference value and the increment rotation speed comprises the following steps: and determining the rotating speed of the fan according to the sum of the target rotating speed and the fourth rotating speed value.
8. A method according to claim 3, wherein said step of determining an incremental rotational speed from a current compressor frequency and/or a temperature range to which said outdoor ambient temperature belongs comprises: When the current compressor frequency rises, determining that the increment rotating speed is a fifth rotating speed value; the step of determining the fan rotation speed according to the target rotation speed and/or the frequency difference value and the increment rotation speed comprises the following steps: and determining the rotating speed of the fan according to the sum of the target rotating speed and the fifth rotating speed value.
9. The method of claim 2, wherein the step of determining the fan speed of the outdoor unit according to the heat radiation state and the current compressor frequency comprises: When the heat radiation state of the outdoor unit is a normal heat radiation state and the compressor frequency is determined to be reduced according to the current compressor frequency, determining a frequency difference value between the target compressor frequency and the current compressor frequency; and determining the rotating speed of the fan according to the target rotating speed and/or the frequency difference, wherein the target rotating speed and the target compressor frequency are determined by initial control logic of the air conditioner.
10. The method of claim 9, wherein the step of determining the fan speed based on a target speed and/or the frequency difference comprises: when the outdoor environment temperature is smaller than or equal to a preset first temperature threshold value, determining whether beat frequency abnormal sound or beat frequency abnormal sound risks exist in the air conditioner according to the target rotating speed and the target compressor frequency; when beat frequency abnormal sound exists, the target rotating speed is redetermined according to the current compressor frequency, and the fan rotating speed is determined according to the redetermined target rotating speed and the frequency difference value; And when the beat frequency abnormal sound risk exists, determining the rotating speed of the fan according to the target rotating speed and the frequency difference value.
11. The method of claim 9, wherein the step of determining the fan speed based on a target speed and/or the frequency difference comprises: And if the outdoor environment temperature is greater than a preset first temperature threshold and is less than or equal to a preset second temperature threshold, determining the fan rotating speed according to the target rotating speed and the frequency difference value.
12. An air conditioner control device, characterized in that the device comprises a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program being configured to implement the steps of the air conditioner control method according to any one of claims 1 to 11.
13. A storage medium, characterized in that the storage medium is a computer-readable storage medium, on which a computer program is stored, which computer program, when being executed by a processor, realizes the steps of the control method of an air conditioner according to any one of claims 1 to 11.
14. A computer program product, characterized in that it comprises a computer program which, when executed by a processor, implements the steps of the control method of an air conditioner according to any one of claims 1 to 11.

Description

Control method, device, storage medium and program product for air conditioner Technical Field The present application relates to the field of control technologies of air conditioners, and in particular, to a control method, apparatus, storage medium, and program product for an air conditioner. Background When the air conditioner operates in a refrigeration mode, the rotating speed of the fan of the outdoor unit is divided into different gears, when the temperature of the outer side of the fan is lower, the rotating speed of the fan is properly reduced, and when the temperature of the outer side of the fan is higher, the rotating speed of the fan is properly increased. Or when the compressor frequency is lower, the fan speed is properly reduced by the gear, and when the compressor frequency is higher, the fan speed is properly increased by the gear. Under different installation environments, when the outdoor unit runs at the same fan rotating speed gear, the heat dissipation effect is different. Especially, under the high temperature working condition, the outdoor unit is easily affected by the installation space, and under the conditions that the installation space of the outdoor unit is narrow and the environment is relatively closed, for example, in a lattice cage, the heat dissipation is poor, and when the fixed rotation speed gear is determined only according to the temperature outside the fan or the frequency of the compressor, the heat dissipation condition of the outdoor unit is not considered, and at the moment, the accuracy of the rotation speed adjustment of the fan is low, so that the heat dissipation effect of the outdoor unit is poor. Disclosure of Invention The application mainly aims to provide a control method, equipment, a storage medium and a program product of an air conditioner, and aims to solve the technical problem of low accuracy of fan rotation speed adjustment. In order to achieve the above object, the present application provides a control method of an air conditioner, the method comprising: when the air conditioner starts a refrigeration mode, acquiring an initial environmental temperature of a space where the outdoor unit is located, and after starting a preset time, acquiring an outdoor environmental temperature of the space where the outdoor unit is located; Determining an ambient temperature difference value between the outdoor ambient temperature and the initial ambient temperature, and determining a heat dissipation state of the outdoor unit according to the ambient temperature difference value; and determining the fan rotating speed of the outdoor unit according to the heat radiation state and the current compressor frequency, and controlling the operation of the outdoor unit according to the fan rotating speed. In an embodiment, the step of determining the heat dissipation state of the outdoor unit according to the ambient temperature difference includes: when the ambient temperature difference is greater than a preset difference threshold, determining that the heat dissipation state of the outdoor unit is an abnormal heat dissipation state; and when the ambient temperature difference is smaller than or equal to a preset difference threshold and the initial ambient temperature is smaller than the preset temperature threshold, determining that the heat dissipation state of the outdoor unit is a normal heat dissipation state. In an embodiment, the step of determining the fan speed of the outdoor unit according to the heat dissipation state and the current compressor frequency includes: when the heat radiation state of the outdoor unit is an abnormal heat radiation state, determining an increment rotating speed according to the current compressor frequency and/or the temperature range of the outdoor environment temperature; Determining a frequency difference between the target compressor frequency and the current compressor frequency; And determining the fan rotating speed according to a target rotating speed and/or the frequency difference value and the increment rotating speed, wherein the target rotating speed and the target compressor frequency are determined by initial control logic of the air conditioner. In an embodiment, the step of determining the incremental rotational speed according to the current compressor frequency and/or the temperature range to which the outdoor ambient temperature belongs comprises: when the current compressor frequency is reduced and the outdoor environment temperature is less than or equal to a preset first temperature threshold value, determining the increment rotating speed as a first rotating speed value; the step of determining the fan rotation speed according to the target rotation speed and/or the frequency difference value and the increment rotation speed comprises the following steps: determining whether beat frequency abnormal sound or beat frequency abnormal sound risks exist in the air conditioner according to the target rotat