Air conditioner and controlling method thereof

Patent metadata

Field	Value
Publication number	US-2024426509-A1
Application number	US-202418824312-A
Country	US
Kind code	A1
Filing date	Sep 4, 2024
Priority date	Apr 28, 2022
Publication date	Dec 26, 2024
Grant date	—

Abstract

An air conditioner is provided. The air conditioner includes a compressor configured to compress a refrigerant, an indoor heat exchanger in which heat exchange between indoor air and the refrigerant is performed, a discharge temperature sensor configured to measure a discharge temperature of air at which the heat exchange has been completed, an intake temperature sensor configured to measure an intake temperature of the indoor air drawn into the indoor heat exchanger, an inputter configured to receive a target temperature from a user, memory storing one or more computer programs, and one or more processors communicatively coupled the compressor, the indoor heat exchanger, the discharge temperature sensor, the intake temperature sensor, the inputter, and the memory, wherein the one or more computer programs include computer-executable instructions that, when executed by the one or more processors individually or collectively, cause the air conditioner to adjust an operating frequency of the compressor by comparing the intake temperature and the target temperature, and control the compressor to reduce the operating frequency in response to the discharge temperature reaching a reference temperature.

First claim

What is claimed is:

1 . An air conditioner comprising:
a compressor configured to compress a refrigerant; an indoor heat exchanger in which heat exchange between indoor air and the refrigerant is performed; a discharge temperature sensor configured to measure a discharge temperature of air at which the heat exchange is completed; an intake temperature sensor configured to measure an intake temperature of the indoor air drawn into the indoor heat exchanger; an inputter configured to receive a target temperature from a user; memory storing one or more computer programs; and one or more processors communicatively coupled the compressor, the indoor heat exchanger, the discharge temperature sensor, the intake temperature sensor, the inputter, and the memory, wherein the one or more computer programs include computer-executable instructions that, when executed by the one or more processors individually or collectively, cause the air conditioner to:
adjust an operating frequency of the compressor by comparing the intake temperature and the target temperature, and
control the compressor to reduce the operating frequency in response to the discharge temperature reaching a reference temperature.

2 . The air conditioner of claim 1 ,
wherein the one or more computer programs further include computer-executable instructions that, when executed by the one or more processors individually or collectively, cause the air conditioner to adjust the operating frequency of the compressor or stop the compressor based on the intake temperature, and wherein, in response to the discharge temperature reaching the reference temperature after the intake temperature reaches the target temperature, the one or more computer programs further include computer-executable instructions that, when executed by the one or more processors individually or collectively, cause the air conditioner to control the compressor to reduce the operating frequency instead of stopping the compressor.

3 . The air conditioner of claim 1 , wherein the one or more computer programs further include computer-executable instructions that, when executed by the one or more processors individually or collectively, cause the air conditioner to maintain the operating frequency at a second operating frequency reduced from a first operating frequency in response to the discharge temperature reaching the reference temperature.

4 . The air conditioner of claim 3 , wherein, in response to the discharge temperature increasing in a section, in which the compressor is operated at the second operating frequency, and reaching a predetermined first temperature, the one or more computer programs further include computer-executable instructions that, when executed by the one or more processors individually or collectively, cause the air conditioner to maintain a third operating frequency increased from the second operating frequency.

5 . The air conditioner of claim 4 , wherein, in response to the discharge temperature decreasing in a section, in which the compressor is operated at the third operating frequency, and reaching the reference temperature, the one or more computer programs further include computer-executable instructions that, when executed by the one or more processors individually or collectively, cause the air conditioner to maintain the second operating frequency reduced from the third operating frequency.

6 . The air conditioner of claim 5 , wherein the reference temperature is a predetermined cooling reference temperature.

7 . The air conditioner of claim 3 , wherein, in response to the discharge temperature decreasing in a section, in which the compressor is operated at the second operating frequency, and reaching a predetermined second temperature, the one or more computer programs further include computer-executable instructions that, when executed by the one or more processors individually or collectively, cause the air conditioner to maintain a fourth operating frequency increased from the second operating frequency.

8 . The air conditioner of claim 7 , wherein, in response to the discharge temperature increasing in a section, in which the compressor is operated at the fourth operating frequency, and reaching the reference temperature, the one or more computer programs further include computer-executable instructions that, when executed by the one or more processors individually or collectively, cause the air conditioner to maintain the second operating frequency reduced from the fourth operating frequency.

9 . The air conditioner of claim 8 , wherein the reference temperature is a predetermined heating reference temperature.

10 . The air conditioner of claim 3 , wherein the one or more computer programs further include computer-executable instructions that, when executed by the one or more processors individually or collectively, cause the air conditioner to:
control the compressor to increase the operating frequency to the first operating frequency in response to start of a cooling operation or heating operation; and maintain the first operating frequency in response to the intake temperature reaching the target temperature.

11 . The air conditioner of claim 3 , wherein the one or more computer programs further include computer-executable instructions that, when executed by the one or more processors individually or collectively, cause the air conditioner to control the operating frequency based on a predetermined fuzzy table in a section in which the operating frequency is increased to the first operating frequency.

12 . A method of controlling an air conditioner comprising:
a compressor configured to compress a refrigerant; an indoor heat exchanger in which heat exchange between indoor air and the refrigerant is performed; a discharge temperature sensor configured to measure a discharge temperature; an intake temperature sensor configured to measure an intake temperature; and an inputter configured to receive a target temperature from a user, the method comprising:
receiving the target temperature from the user,
obtaining the intake temperature and the discharge temperature,
adjusting an operating frequency of the compressor by comparing the intake temperature and the target temperature, and
controlling the compressor to reduce the operating frequency of the compressor in response to the discharge temperature reaching a reference temperature.

13 . The method of claim 12 , wherein the controlling of the compressor comprises:
adjusting the operating frequency of the compressor or stopping the compressor based on the intake temperature; and controlling the compressor to reduce the operating frequency instead of stopping the compressor, in response to the discharge temperature reaching the reference temperature after the intake temperature reaches the target temperature.

14 . The method of claim 13 , wherein the controlling of the compressor comprises:
maintaining the operating frequency at a second operating frequency reduced from a first operating frequency in response to the discharge temperature reaching the reference temperature.

15 . The method of claim 13 , wherein the reference temperature is determined based on at least one of a size of the indoor heat exchanger and a blowing capacity of the air conditioner.

16 . The method of claim 14 , wherein, in response to the discharge temperature increasing in a section, in which the compressor is operated at the second operating frequency, and reaching a predetermined first temperature, maintaining a third operating frequency increased from

Assignees

• Samsung Electronics Co Ltd

Inventors

• Kim Taewoo
• Oh Seungwon
• Kim Daehui
• Kim Minseok
• Kim Younghoon
• Park Seungjun
• Seong Junkyu
• Son Sunhee
• Yun Younguk

Classifications

• F25B2700/2115

  of a compressor or the drive means therefor · CPC title

• F25B2600/11

  Fan speed control · CPC title

• F25B2700/21152

  at the discharge side of the compressor · CPC title

• F25B2600/0251

  with on-off operation · CPC title

• F25B49/02

  for compression type machines, plants or systems · CPC title