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公开(公告)号：US12222117B2
公开(公告)日：2025-02-11
申请号：US17935827
申请日：2022-09-27
Applicant: Lennox Industries Inc.
Inventor： Payam Delgoshaei , Ian Burmania , Fnu Aishwarya Mukunda
Abstract: 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：US20240429699A1
公开(公告)日：2024-12-26
申请号：US18340963
申请日：2023-06-26
Applicant: Lennox Industries Inc.
Inventor： Palanivel Subramaniam , Yan Yang
IPC: H02H3/087 , G01R19/165
Abstract: A system for detecting motor disconnections while a motor is switched on comprises a motor, a motor drive circuit, and a processor. The processor determines whether a set of disconnection conditions is met for more than a threshold time. In this process, the processor determines that a pulse signal that leads to power the motor is enabled, that a speed associated with the motor is more than a threshold speed, a drive voltage output associated with the motor drive circuit is more than a threshold voltage, a current applied to the motor is less than a threshold current, and that the speed associated with the motor is zero. The processor determines that at least one terminal of the motor is disconnected from the motor drive circuit in response to determining that the set of disconnection conditions is met for more than the threshold time.
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公开(公告)号：US20240429698A1
公开(公告)日：2024-12-26
申请号：US18340952
申请日：2023-06-26
Applicant: Lennox Industries Inc.
Inventor： Palanivel Subramaniam , Yan Yang
IPC: H02H3/087 , G01R19/165
Abstract: A system for detecting motor disconnections while a motor is switched off comprises a motor, a motor drive circuit, and a processor. The processor determines that a pulse signal that powers the motor is enabled. The processor determines whether a permanent magnet associated with the motor is being aligned with at least one winding associated with the motor. The processor communicates, to the motor drive circuit, a control signal that indicates to transmit a DC voltage signal to a first terminal from among the terminals at the motor. The processor determines a first current value at the first terminal of the motor. The processor compares the first current value with a first threshold current value. The processor determines that the first current value is less than the first threshold current value. In response, the processor determines that the first terminal of the motor is disconnected from the motor drive circuit.
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公开(公告)号：US12158942B2
公开(公告)日：2024-12-03
申请号：US17853215
申请日：2022-06-29
Applicant: Lennox Industries, Inc.
Inventor： Nguyen Trong Ho
Abstract: An apparatus stores a security token in a memory associated with the apparatus. The security token is a software security artifact used to uniquely identify the apparatus. The apparatus receives a query message to provide the security token. The apparatus transmits the security token to be verified. In response to the security token being verified, the apparatus participates in a secured communication channel with a user device. The apparatus receives a second security token that is used for a subsequent authentication of the apparatus. The apparatus stores the second security token in the memory.
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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
Applicant: Lennox Industries Inc.
Inventor： Patric Ananda Balan Thobias , Amit Parsai , Shiliang Wang
CPC classification number: F24F7/06 , F04D25/08 , F04D29/282 , F04D29/4226 , F24F7/007 , F24F7/08 , F24F11/74 , F24F13/20 , F24F2013/205
Abstract: 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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Patent Agency Ranking
公开(公告)号：US20240344728A1
公开(公告)日：2024-10-17
申请号：US18299302
申请日：2023-04-12
Applicant: Lennox Industries Inc.
Inventor： Payam Delgoshaei , Sridhar Venkatesh , Eric Berg
IPC: F24F11/38 , F24F11/52 , F24F110/10 , F24F140/00
CPC classification number: F24F11/38 , F24F11/52 , F24F2110/10 , F24F2140/00
Abstract: 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
Applicant: Lennox Industries Inc.
Inventor： Payam Delgoshaei , Sridhar Venkatesh , Eric Berg
CPC classification number: F24F11/38 , F24F11/39 , F24F11/67 , F24F2110/10 , F24F2140/00
Abstract: 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
Applicant: Lennox Industries Inc.
Inventor： Sunil Bondalapati , Prasad Mecheri Chandravihar , Bhavana Chadive , F N U Kriti
IPC: F24F11/63 , F24F120/10 , G05B13/02 , G05B13/04 , G10L15/20 , H04B17/318 , H04L67/12
CPC classification number: F24F11/63 , G05B13/0265 , G05B13/048 , G10L15/20 , H04B17/318 , H04L67/12 , F24F2120/10
Abstract: 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
Applicant: Lennox Industries Inc.
Inventor： Vijay Kumar Sathyamurthi , Joe R. Powell , Darko Hadzidedic , Ajith Kumar Cherumani
CPC classification number: F24F11/32 , F24F11/52 , F24F11/77 , F24F11/80 , F24F2110/65 , F24F2221/34
Abstract: 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：US20240102676A1
公开(公告)日：2024-03-28
申请号：US17935827
申请日：2022-09-27
Applicant: Lennox Industries Inc.
Inventor： Payam Delgoshaei , Ian Burmania , Fnu Aishwarya Mukunda
Abstract: 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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