US2026009551A1PendingUtilityA1

Method and apparatus for controlling air conditioner, electronic device, air conditioner, storage medium and product

Assignee: XIAOMI TECHNOLOGY WUHAN CO LTDPriority: Jul 5, 2024Filed: Nov 15, 2024Published: Jan 8, 2026
Est. expiryJul 5, 2044(~17.9 yrs left)· nominal 20-yr term from priority
F24F 11/32F25B 2500/26F25B 2700/15F25B 2700/151F25B 2500/06Y02B30/70F24F 2140/20F24F 2110/12F24F 2110/10F24F 11/86F24F 11/64F24F 11/61F25B 49/005F24F 11/38
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Claims

Abstract

A method for controlling an air conditioner, provides that a power-on duration of an air conditioner indoor unit is determined, a refrigerant circulation state of the air conditioner is determined based on a current change situation of an air conditioner outdoor unit and a current change situation of an air conditioner compressor in a case that the power-on duration is less than a first preset duration, and an abnormity protection instruction for controlling the air conditioner compressor to perform a halt protection is generated in a case that the refrigerant circulation state is abnormal.

Claims

exact text as granted — not AI-modified
1 . A method for controlling an air conditioner, comprising:
 determining a power-on duration of an air conditioner indoor unit;   determining a refrigerant circulation state of the air conditioner based on a current change situation of an air conditioner outdoor unit and a current change situation of an air conditioner compressor in a case that the power-on duration is less than a first preset duration; and   generating an abnormity protection instruction in a case that the refrigerant circulation state is abnormal, wherein the abnormity protection instruction is used to control the air conditioner compressor to perform a halt protection.   
     
     
         2 . The method according to  claim 1 , wherein determining the refrigerant circulation state of the air conditioner based on the current change situation of the air conditioner outdoor unit and the current change situation of the air conditioner compressor comprises:
 determining the refrigerant circulation state as abnormal refrigerant circulation in a case that an absolute value of an absolute change value of a current of the air conditioner outdoor unit at a first moment and a second moment is greater than or equal to a preset current threshold and an absolute value of a relative change rate of a current of the compressor at a third moment and a fourth moment is greater than or equal to a preset proportion threshold, and   wherein an interval between the first moment and the second moment is a second preset duration, and an interval between the third moment and the fourth moment is a third preset duration.   
     
     
         3 . The method according to  claim 1 , wherein determining the refrigerant circulation state of the air conditioner based on the current change situation of the air conditioner outdoor unit and the current change situation of the air conditioner compressor comprises:
 determining running stability of the air conditioner; and   determining the refrigerant circulation state of the air conditioner based on the current change situation of the air conditioner outdoor unit and the current change situation of the air conditioner compressor in a case that the air conditioner runs stably.   
     
     
         4 . The method according to  claim 3 , wherein determining the running stability of the air conditioner comprises:
 determining that the air conditioner runs stably in a case that a preset condition is met, and   wherein the preset condition comprises at least one of:
 a fluctuation of a running frequency of the air conditioner compressor within a fourth preset duration is less than a preset frequency threshold, 
 a fluctuation of a rotation speed of an internal fan of the air conditioner within a fifth preset duration is less than a first preset rotation speed threshold, 
 a fluctuation of a rotation speed of an external fan of the air conditioner within a sixth preset duration is less than a second preset rotation speed threshold, or 
 a fluctuation of a variation range of an alternating current voltage of the air conditioner outdoor unit within a seventh preset duration is less than a preset voltage threshold. 
   
     
     
         5 . The method according to  claim 1 , wherein determining the refrigerant circulation state of the air conditioner based on the current change situation of the air conditioner outdoor unit and the current change situation of the air conditioner compressor comprises:
 obtaining an inner tube temperature, an inner loop temperature, an outer tube temperature and an outer loop temperature corresponding to a starting-up moment of the air conditioner outdoor unit; and   determining the refrigerant circulation state of the air conditioner based on the current change situation of the air conditioner outdoor unit and the current change situation of the air conditioner compressor in a case of determining that a preset temperature difference condition is met based on the inner tube temperature, the inner loop temperature, the outer tube temperature and the outer loop temperature.   
     
     
         6 . The method according to  claim 5 , wherein determining the refrigerant circulation state of the air conditioner based on the current change situation of the air conditioner outdoor unit and the current change situation of the air conditioner compressor in the case of determining that the preset temperature difference condition is met based on the inner tube temperature, the inner loop temperature, the outer tube temperature and the outer loop temperature comprises:
 determining the refrigerant circulation state of the air conditioner based on the current change situation of the air conditioner outdoor unit and the current change situation of the air conditioner compressor in cases of determining that the preset temperature difference condition is met based on the inner tube temperature, the inner loop temperature, the outer tube temperature and the outer loop temperature and determining that a starting-up duration of the air conditioner compressor reaches an eighth preset duration.   
     
     
         7 . A method for controlling an air conditioner, performed by an air conditioner outdoor unit, comprising:
 receiving a power-on duration parameter sent by an air conditioner indoor unit;   determining a power-on duration of the air conditioner indoor unit according to the power-on duration parameter, wherein the power-on duration parameter is sent continuously within a ninth preset duration after the air conditioner indoor unit is powered on;   determining a refrigerant circulation state of the air conditioner based on a current change situation of the air conditioner outdoor unit and a current change situation of an air conditioner compressor in a case that the power-on duration is less than a first preset duration;   generating an abnormity protection instruction in a case that the refrigerant circulation state is abnormal; and   controlling the air conditioner compressor to perform a halt protection based on the abnormity protection instruction.   
     
     
         8 . An electronic device, comprising:
 one or more first processors; and   a first memory configured to store an instruction executable by the one or more first processors, and   wherein the one or more first processors are collectively configured to:
 determine a power-on duration of an air conditioner indoor unit, 
 determine a refrigerant circulation state of the air conditioner based on a current change situation of an air conditioner outdoor unit and a current change situation of an air conditioner compressor in a case that the power-on duration is less than a first preset duration, and 
 generate an abnormity protection instruction in a case that the refrigerant circulation state is abnormal, wherein the abnormity protection instruction is used to control the air conditioner compressor to perform a halt protection. 
   
     
     
         9 . The electronic device according to  claim 8 , wherein the one or more first processors are collectively configured to:
 determine the refrigerant circulation state as abnormal refrigerant circulation in a case that an absolute value of an absolute change value of a current of the air conditioner outdoor unit at a first moment and a second moment is greater than or equal to a preset current threshold and an absolute value of a relative change rate of a current of the compressor at a third moment and a fourth moment is greater than or equal to a preset proportion threshold, and   wherein an interval between the first moment and the second moment is a second preset duration, and an interval between the third moment and the fourth moment is a third preset duration.   
     
     
         10 . The electronic device according to  claim 8 , wherein the one or more first processors are collectively configured to:
 determine running stability of the air conditioner; and   determine the refrigerant circulation state of the air conditioner based on the current change situation of the air conditioner outdoor unit and the current change situation of the air conditioner compressor in a case that the air conditioner runs stably.   
     
     
         11 . The electronic device according to  claim 10 , wherein the one or more first processors are collectively configured to:
 determine that the air conditioner runs stably in a case that a preset condition is met, and   wherein the preset condition comprises at least one of:
 a fluctuation of a running frequency of the air conditioner compressor within a fourth preset duration is less than a preset frequency threshold, 
 a fluctuation of a rotation speed of an internal fan of the air conditioner within a fifth preset duration is less than a first preset rotation speed threshold, 
 a fluctuation of a rotation speed of an external fan of the air conditioner within a sixth preset duration is less than a second preset rotation speed threshold, or 
 a fluctuation of a variation range of an alternating current voltage of the air conditioner outdoor unit within a seventh preset duration is less than a preset voltage threshold. 
   
     
     
         12 . The electronic device according to  claim 8 , wherein the one or more first processors are collectively configured to:
 obtain an inner tube temperature, an inner loop temperature, an outer tube temperature and an outer loop temperature corresponding to a starting-up moment of the air conditioner outdoor unit; and   determine the refrigerant circulation state of the air conditioner based on the current change situation of the air conditioner outdoor unit and the current change situation of the air conditioner compressor in a case of determining that a preset temperature difference condition is met based on the inner tube temperature, the inner loop temperature, the outer tube temperature and the outer loop temperature.   
     
     
         13 . The electronic device according to  claim 12 , wherein the one or more first processors are collectively configured to:
 determine the refrigerant circulation state of the air conditioner based on the current change situation of the air conditioner outdoor unit and the current change situation of the air conditioner compressor in cases of determining that the preset temperature difference condition is met based on the inner tube temperature, the inner loop temperature, the outer tube temperature and the outer loop temperature and determining that a starting-up duration of the air conditioner compressor reaches an eighth preset duration.   
     
     
         14 . An electronic device, comprising:
 one or more first processors; and   a first memory configured to store an instruction executable by the one or more first processors, and   wherein the one or more first processors are collectively configured to implement steps of the method for controlling the air conditioner according to  claim 7 .   
     
     
         15 . An air conditioner, comprising an air conditioner outdoor unit, wherein the air conditioner outdoor unit comprises:
 one or more second processors; and   a second memory configured to store an instruction executable by the one or more second processors, and   wherein the one or more second processors are collectively configured to implement steps of the method for controlling the air conditioner according to  claim 1 .   
     
     
         16 . An air conditioner, comprising an air conditioner outdoor unit, wherein the air conditioner outdoor unit comprises:
 one or more second processors; and   a second memory configured to store an instruction executable by the one or more second processors, and   wherein the one or more second processors are collectively configured to implement steps of the method for controlling the air conditioner according to  claim 7 .   
     
     
         17 . A non-transitory computer-readable storage medium, storing one or more programs configured to be executed by one or more processors of a processing device, the one or more programs including instructions which, when executed by the processing device, cause the processing device to carry out the method for controlling the air conditioner according to  claim 1 . 
     
     
         18 . A non-transitory computer-readable storage medium, storing one or more programs configured to be executed by one or more processors of a processing device, the one or more programs including instructions which, when executed by the processing device, cause the processing device to carry out the method for controlling the air conditioner according to  claim 7 .

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