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公开(公告)号：US12123622B2
公开(公告)日：2024-10-22
申请号：US18512410
申请日：2023-11-17
CPC分类号： F24F7/06 , F04D25/08 , F04D29/282 , F04D29/4226 , F24F7/007 , F24F7/08 , F24F11/74 , F24F13/20 , F24F2013/205
摘要： In an embodiment, a blower for a heating, ventilation, and air conditioning system includes a blower wheel and a housing. The blower wheel includes backward-curved blades configured to rotate in a rotational plane. The housing forms an at least hexagonal cross-section around at least a portion of the rotational plane, where the blower wheel is positioned within the housing such that there exists a first distance and a second distance. The first distance is measured radially outward from a center of the blower wheel to a first side of the at least hexagonal cross-section. The second distance is measured radially outward from the center of the blower wheel to a second side of the at least hexagonal cross-section. The second distance forms a an acute angle with the first distance. The first distance and the second distance are unequal and less than a diameter of the blower wheel.
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公开(公告)号：US20240344728A1
公开(公告)日：2024-10-17
申请号：US18299302
申请日：2023-04-12
发明人： Payam Delgoshaei , Sridhar Venkatesh , Eric Berg
IPC分类号： F24F11/38 , F24F11/52 , F24F110/10 , F24F140/00
CPC分类号： F24F11/38 , F24F11/52 , F24F2110/10 , F24F2140/00
摘要： A method for heating, ventilation, and air conditioning (HVAC) system diagnostics includes sending a first instruction to a thermostat to shut down an HVAC system. A user is instructed to minimize background noise. A second instruction is sent to the thermostat to turn on the HVAC system. A third instruction is sent to the thermostat to set a temperature setpoint below or above a value of a room temperature. Indoor unit sound data is captured for a second time period. The baseline sound data is subtracted from the indoor unit sound data to determine normalized indoor unit sound data. Expected sound signatures of the indoor unit are identified. The normalized indoor unit sound data is compared to the expected sound signatures. In response to determining that an expected sound signature for a blower is missing from the normalized indoor unit sound data, it is determined that the blower has failed.
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公开(公告)号：US20240344727A1
公开(公告)日：2024-10-17
申请号：US18299257
申请日：2023-04-12
发明人： Payam Delgoshaei , Sridhar Venkatesh , Eric Berg
CPC分类号： F24F11/38 , F24F11/39 , F24F11/67 , F24F2110/10 , F24F2140/00
摘要： A method for heating, ventilation, and air conditioning (HVAC) system diagnostics includes, in response to determining that a triggering event has occurred, entering a filter diagnostics mode. A first instruction is sent to a thermostat to shut down an HVAC system. A user is instructed to locate and remove a filter. The filter is classified as acceptable or dirty. In response to classifying the filter as acceptable, the user is instructed to the turn on the HVAC system. In response to determining based on the triggering event that a desired mode is a cooling mode, a first value of a room temperature is determined. The user is instructed to set a temperature setpoint below the first value. A second value of the room temperature is determined. In response to determining that the second value is less than the first value, it is determined that the HVAC system operates properly.
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公开(公告)号：US12104815B2
公开(公告)日：2024-10-01
申请号：US17139250
申请日：2020-12-31
IPC分类号： F24F11/63 , F24F120/10 , G05B13/02 , G05B13/04 , G10L15/20 , H04B17/318 , H04L67/12
CPC分类号： F24F11/63 , G05B13/0265 , G05B13/048 , G10L15/20 , H04B17/318 , H04L67/12 , F24F2120/10
摘要： An occupancy tracking device configured to receive sound samples, to identify voices within the sound samples, and to determine a first occupancy level based on the identified voices. The device is further configured to identify user devices connected to an access point and to determine a second occupancy level based on the user devices that are connected to the access point. The device is further configured to measure a signal strength of a network connection with the access point and to determine a third occupancy level based on the signal strength of the network connection with the access point. The device is further configured to determine a predicted occupancy level based on the first occupancy level, the second occupancy level, and the third occupancy level and to control a Heating, Ventilation, and Air Conditioning (HVAC) system based on the predicted occupancy level.
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公开(公告)号：US20240310065A1
公开(公告)日：2024-09-19
申请号：US18185715
申请日：2023-03-17
CPC分类号： F24F11/32 , F24F11/52 , F24F11/77 , F24F11/80 , F24F2110/65 , F24F2221/34
摘要： A method of operating a HVAC system is provided. The method includes transferring heat between airflow and a heating element in the duct system. The heating element is configured to receive a fuel and ignite the fuel to heat the heating element. The method includes measuring a change in at least one gas property value of the airflow in the duct system using a leak detection sensor, where the change in the at least one gas property value is indicative of a gas leaked into the duct system. The method includes determining a concentration of the leaked gas based at least in part upon the change in the at least one gas property value and determining that the concentration as measured by the leak detection sensor has a negative value, where the negative value is indicative of the leaked gas comprising fuel.
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公开(公告)号：US12066253B2
公开(公告)日：2024-08-20
申请号：US17500024
申请日：2021-10-13
发明人： Berthold Adomat
IPC分类号： F28D1/047 , F28D1/02 , F28D1/04 , F28D1/053 , F28D7/06 , F28F9/02 , F28F13/12 , F28F19/04 , F28F19/06 , F28D21/00
CPC分类号： F28D1/0476 , F28D1/0213 , F28D1/0435 , F28D1/0471 , F28D1/0475 , F28D1/05383 , F28D7/06 , F28F9/0202 , F28F13/125 , F28F19/04 , F28F19/06 , F28D2021/0071 , F28F2260/02
摘要： A microchannel evaporator includes a plurality of microchannels. Each of the plurality of microchannels includes a first end and a second end. A first end-tank is coupled to each first end of the plurality of microchannels and a second end-tank is coupled to each second end of the plurality of microchannels. A second-fluid inlet is coupled to either the first end-tank or the second end-tank and configured to receive a fluid into the microchannel evaporator and a second-fluid outlet is coupled to either the first end-tank or the second end-tank and configured to expel the fluid from the microchannel evaporator. Each microchannel of the plurality of microchannels includes at least one bend along a length thereof.
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公开(公告)号：US20240102676A1
公开(公告)日：2024-03-28
申请号：US17935827
申请日：2022-09-27
摘要： An analysis device is configured to operate a heating, ventilation, and air conditioning (HVAC) system and to receive an audio signal from a sound sensor, wherein the audio signal is associated with a condensing unit of the HVAC system. The device is configured to determine an audio signature from the audio signal and to determine whether a motor of the condensing unit is operating within a mode of operation based on the audio signature. The device is further configured to determine a fault type that is associated with the audio signature and to output a recommendation based on the determined fault type.
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公开(公告)号：US11898764B2
公开(公告)日：2024-02-13
申请号：US18153237
申请日：2023-01-11
发明人： Payam Delgoshaei , Eric Berg
IPC分类号： F24F11/36 , F24F11/84 , F24F11/86 , F24F140/12 , F24F140/20
CPC分类号： F24F11/36 , F24F11/84 , F24F11/86 , F24F2140/12 , F24F2140/20
摘要： An HVAC system includes a high-pressure subsystem and a low-pressure subsystem. After determining that refrigerant leak diagnostics should be performed, a controllable valve is closed between a condenser and compressor of the HVAC system. The compressor then operates until a predetermined input refrigerant pressure is reached. After the predetermined input refrigerant pressure is reached, operation of the compressor is stopped. After stopping operation of the compressor and waiting at least a predetermined wait time, the pressure in the low-pressure subsystem of the HVAC system is monitored. A rate of change of the pressure in the low-pressure subsystem is determined. If the rate of change is negative and a magnitude of the rate of change is greater than a threshold value, a leak location is determined to be in the low-pressure subsystem.
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公开(公告)号：US20240007289A1
公开(公告)日：2024-01-04
申请号：US17853162
申请日：2022-06-29
发明人： Nguyen Trong Ho
IPC分类号： H04L9/32
CPC分类号： H04L9/3213
摘要： A system for authenticating components using software security tokens receives, from a remote server, a security token that is a software security artifact that is used to uniquely identify a component. The system programs the security token into the component, where programming the security token into the component comprises encoding the component with the security token such that the security token in retrievable upon request for authenticating the component. The system generates a report file comprising the programmed security token. The programmed security token is used to authenticate the component. The system transmits the report file to the remote server.
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公开(公告)号：US20240005337A1
公开(公告)日：2024-01-04
申请号：US17853107
申请日：2022-06-29
发明人： Nguyen Trong Ho
IPC分类号： G06Q30/00
CPC分类号： G06Q30/018
摘要： A component authentication and validation system requests a token server to provide tokens for a product line. The system receives, from the token server, the requested tokens. The system associates each token with a unique identifier that uniquely identifies the token. The system receives, from a production line server, a request to transmit a particular number of tokens to program the components associated with the product line. The system receives, from the production line server, a report file comprising a programmed token that is programmed into a component associated with the product line. The programmed token is used to authenticate the component. The system registers the token with the token server, such that inquiries about the token are tracked by the token server.
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