公开(公告)号：US20250012482A1

公开(公告)日：2025-01-09

申请号：US18711735

申请日：2022-11-18

Applicant: Danfoss A/S

Inventor： Yubao LIU ,  Lisha CHEN

IPC: F24F13/30 ,  F24F11/67 ,  F24F11/84 ,  F28F9/02

Abstract: A heat exchanger assembly and an air conditioning system having the heat exchanger assembly. The heat exchanger assembly includes: a first heat exchanger portion and a second heat exchanger portion; and a control valve, the control valve having an open position and a closed position, at the open position, the first heat exchanger portion being in fluid communication with the second heat exchanger portion by means of the control valve, and at the closed position, the first heat exchanger portion being in fluid isolation with the second heat exchanger portion by means of the control valve. By using the heat exchanger assembly of the present disclosure, performance of the air conditioning system can be improved.

公开(公告)号：US20240418391A1

公开(公告)日：2024-12-19

申请号：US18383338

申请日：2023-10-24

Applicant: Fujitsu General America, Inc.

Inventor： Satoshi OKAYAMA

IPC: F24F11/67

Abstract: A heat pump apparatus is provided and includes an outdoor unit, an indoor unit in communication with the outdoor unit, and a control unit in communication with the outdoor unit and the indoor unit. The indoor unit includes a heat exchange housing for heating inlet air, a plurality of temperature sensors to detect and measure temperature of the inlet air and heated air at various positions in the indoor unit, and a control unit to control heat pump operations. The heat exchange housing includes a heat exchanger, a blower, and a heater unit. The control unit includes a processor and a memory, and is configured to perform operations to control a heating operation of the heat pump apparatus based on a calculated temperature of the heated air passing the heat exchanger.

公开(公告)号：US20240392987A1

公开(公告)日：2024-11-28

申请号：US18421195

申请日：2024-01-24

Applicant: Uplight, Inc.

Inventor： Eric M. Shiflet

IPC: F24F11/46 ,  F24F11/30 ,  F24F11/67 ,  F24F110/00 ,  F24F110/10 ,  F24F140/60 ,  G05B19/042 ,  G05D23/19 ,  G06Q10/06

Abstract: A facility for performing setpoint adjustment-based duty cycling techniques by adjusting the setpoint of a device or component is described. The facility reduces energy consumption for a system, such as an HVAC system, or device by adjusting or modulating an associated setpoint or temperature setting. The facility modulates the setpoint between a base setpoint value and another setpoint value based on a mode of the system. When the system is in a cooling mode, the facility modulates the temperature between the base setpoint value and a higher setpoint value. When the system is in heating mode, the facility modulates the temperature between the base setpoint value and a lower setpoint value. The facility may modulate the setpoint between the two setpoint values based on an offset value or a fixed setpoint value.

公开(公告)号：US12117192B2

公开(公告)日：2024-10-15

申请号：US17750633

申请日：2022-05-23

Applicant: GD MIDEA AIR-CONDITIONING EQUIPMENT CO., LTD.

Inventor： Bo Liu

IPC: F24F11/42 ,  F24F11/41 ,  F24F11/61 ,  F24F11/64 ,  F24F11/67 ,  F24F11/871 ,  F24F11/43

CPC classification number: F24F11/42 ,  F24F11/41 ,  F24F11/61 ,  F24F11/64 ,  F24F11/67 ,  F24F11/871 ,  F24F11/43

Abstract: A self-cleaning control method for an air conditioner and a device and a computer readable storage medium associated with the method are provided. According to the method, in response to the air conditioner entering a self-cleaning mode, the air conditioner is controlled to perform a cooling operation. During the cooling operation, a high-pressure-side pressure of an exhaust port of a compressor is acquired and a duration of the cooling operation is recorded. Based on the high-pressure-side pressure and the duration, the air conditioner is controlled to switch to perform a heating operation. During the heating operation, a temperature at a bottom of an outdoor heat exchanger is acquired and a duration of the heating operation is recorded. Based on the temperature and the duration, the air conditioner is controlled to exit the self-cleaning mode.

公开(公告)号：US20240044542A1

公开(公告)日：2024-02-08

申请号：US18485505

申请日：2023-10-12

Applicant: QINGDAO HISENSE HITACHI AIR-CONDITIONING SYSTEMS CO., LTD.

Inventor： Yulei ZHAO ,  Haibin LU ,  Heng ZHANG ,  Chen DONG ,  Jia PENG ,  Tingyu LI

IPC: F24F11/67 ,  F24F3/153

CPC classification number: F24F11/67 ,  F24F3/153 ,  F24F2110/10

Abstract: Some embodiments of the present disclosure provide an air conditioner and a control method thereof. The air conditioner includes an outdoor unit, an indoor unit, a temperature sensor, a humidity sensor, and a controller. The temperature sensor is configured to detect a first indoor temperature and a second indoor temperature. The humidity sensor is configured to detect a first indoor humidity and a second indoor humidity. The controller is configured to control the air conditioner to operate in a reheat dehumidification mode if it is determined that a first preset condition is satisfied, control the air conditioner to operate in a cooling mode if it is determined that the first preset condition is not satisfied, and control the air conditioner to enter a shutdown state if it is determined that one of a second preset condition and a third preset condition is satisfied.

公开(公告)号：US11885518B2

公开(公告)日：2024-01-30

申请号：US17277330

申请日：2018-12-11

Applicant: MITSUBISHI ELECTRIC CORPORATION

Inventor： Koji Fukui ,  Kosuke Tanaka ,  Kazuya Watanabe

IPC: F24F11/42 ,  F24F11/67 ,  F24F1/16 ,  F25B47/02 ,  F24F1/32

CPC classification number: F24F11/42 ,  F24F1/16 ,  F24F11/67 ,  F25B47/022 ,  F24F1/32 ,  F25B2313/0251 ,  F25B2313/0253 ,  F25B2313/02522 ,  F25B2313/02531 ,  F25B2313/02532 ,  F25B2313/02533 ,  F25B2313/0314 ,  F25B2313/0315 ,  F25B2347/021

Abstract: An air-conditioning apparatus includes a refrigerant circuit, an air-conditioning load state detection unit, an operation-state detection unit, and a controller. The refrigerant circuit includes a main circuit and a bypass circuit. The air-conditioning apparatus has a simultaneous heating and defrosting operation mode. In the simultaneous heating and defrosting operation mode, the controller controls a compressor, a pressure reducing device, and a defrosting refrigerant pressure-reducing device such that control amounts of the compressor, the pressure reducing device, and the defrosting refrigerant pressure-reducing device reach respective normal-time control target values that are set based on an air-conditioning load state and an operation state.

公开(公告)号：US11874014B2

公开(公告)日：2024-01-16

申请号：US17255105

申请日：2019-06-19

Applicant: E.ON SVERIGE AB

Inventor： Per Rosén ,  Jacob Skogström ,  Fredrik Rosenqvist ,  Bengt Lindoff

IPC: F24F11/67 ,  F24D10/00

CPC classification number: F24F11/67 ,  F24D10/003 ,  F24D2200/12 ,  F24D2220/0271

Abstract: A controller configured to selectively set a reversible heat pump assembly (100) in either a heating mode or in a cooling mode is presented. The controller comprising a control circuit (44) configured to: for a time period, determine, using a demand determining function (50), a heating demand for heat from one or more local heating circuits (140) connected to the reversible heat pump assembly (100) and a cooling demand for cold from one or more local cooling circuits (140) connected to the reversible heat pump assembly (100); generate, using a control function (52), a control signal indicative of if the reversible heat pump assembly (100) is to be set in either the heating mode or in the cooling mode, wherein the control function is configured to use the heating demand and the cooling demand as input data; and send, using a transmission function (54), the control signal to a heat pump (110) of the reversible heat pump assembly (100). Also a method for controlling the reversible heat pump assembly (100) is presented.

公开(公告)号：US11754308B1

公开(公告)日：2023-09-12

申请号：US17895355

申请日：2022-08-25

Applicant: Jason Sullins

Inventor： Jason Sullins

IPC: F24F11/67 ,  F24F7/013 ,  F24F11/52 ,  F24F11/00 ,  F24F11/64 ,  F24F11/56 ,  F24F110/70 ,  F24F110/12 ,  F24F110/10

CPC classification number: F24F11/67 ,  F24F7/013 ,  F24F11/0001 ,  F24F11/52 ,  F24F11/56 ,  F24F11/64 ,  F24F2011/0002 ,  F24F2110/10 ,  F24F2110/12 ,  F24F2110/70

Abstract: A system and method for cooling a building using cool fresh outside air is disclosed. When the integrated thermostat is operating during a heating period, the integrated thermostat operates a remote air conditioning unit, such as a furnace, an HVAC unit, an electric baseboard heater, or a heat pump, to heat air provided to the building interior. When the integrated thermostat is operating during a cooling period or a fresh air cooling period, the integrated thermostat compares the indoor air temperature with the temperature of the outdoor fresh air. The integrated thermostat operates a remote fan, such as a whole-house exhaust fan, to draw the cooler fresh air into the building interior in response to the outdoor air temperature being less than the indoor air temperature and/or in response to the indoor temperature being greater than a fresh air cooling set point stored in the memory.

公开(公告)号：US11708993B2

公开(公告)日：2023-07-25

申请号：US17645397

申请日：2021-12-21

Applicant: Lennox Industries Inc.

Inventor： Keith R. Mowery ,  Nguyen T. Ho

IPC: F24F11/80 ,  F24F11/59 ,  F24F11/523 ,  F24F11/49 ,  F24F11/64 ,  F24F11/67 ,  F24F11/74 ,  F24F11/46 ,  F24F11/54 ,  F24F110/20 ,  F24F140/40 ,  F24F110/10 ,  F24F120/12 ,  F24F3/00 ,  G05B13/02 ,  G05B19/02

CPC classification number: F24F11/80 ,  F24F11/46 ,  F24F11/49 ,  F24F11/523 ,  F24F11/54 ,  F24F11/59 ,  F24F11/64 ,  F24F11/67 ,  F24F11/74 ,  G05B13/024 ,  G05B19/02 ,  F24F2003/003 ,  F24F2110/10 ,  F24F2110/20 ,  F24F2120/12 ,  F24F2140/40

Abstract: A network of wireless remote climate sensors in a heating, ventilation, and air conditioning (HVAC) system permits the creation of personalized microclimates within an enclosed space. In addition to collecting temperature and humidity data, the wireless remote climate sensors can detect whether the enclosed space is occupied by a human. Human detection is made possible by optional cameras, microphones, and gas sensors on the wireless remote climate sensors. As the human moves throughout the enclosed space, the HVAC system is able to track the human's movement using the wireless remote climate sensors. The HVAC system may adjust airflow to different portions of the enclosed space based on the human's location. The result is an efficient use of system resources to keep users at their ideal temperature.

公开(公告)号：US11668482B2

公开(公告)日：2023-06-06

申请号：US16757948

申请日：2019-07-10

Applicant: LG ELECTRONICS INC.

Inventor： Youngjoo Shin ,  Jaewon Lee ,  Ilyoong Shin

IPC: F24F11/63 ,  F24F11/30 ,  F24F11/49 ,  F24F11/67 ,  F24F11/84 ,  F24F110/10 ,  F24F140/20 ,  F25B13/00 ,  F24F1/0007

CPC classification number: F24F11/30 ,  F24F11/49 ,  F24F11/63 ,  F24F11/67 ,  F24F11/84 ,  F24F1/00077 ,  F24F2110/10 ,  F24F2140/20 ,  F25B13/00 ,  F25B2313/003 ,  F25B2313/007 ,  F25B2313/0231 ,  F25B2313/0233 ,  F25B2313/02732 ,  F25B2500/26 ,  F25B2600/01 ,  F25B2600/2513 ,  F25B2600/2515 ,  F25B2700/2103

Abstract: An air conditioning system may include an outdoor unit including a compressor; at least one distributor connected to the outdoor unit and including a condenser and an evaporator that exchange heat between refrigerant and water; a plurality of heating pipes in communication with the condenser; a plurality of cooling pipes in communication with the evaporator; a plurality of fan coil units connected to the plurality of heating pipes or the plurality of cooling pipes; and a controller configured to perform a heating pipe search operation for matching a portion of the plurality of fan coil units with the plurality of heating pipes, and a cooling pipe search operation for matching another portion of the plurality of fan coil units with the plurality of cooling pipes, in parallel.