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公开(公告)号：US11636429B2
公开(公告)日：2023-04-25
申请号：US16438961
申请日：2019-06-12
IPC分类号： G06Q10/08 , G06Q30/08 , G06Q10/0875 , G06Q10/0835
摘要： An automatic parts resupply system for building equipment including a model predictive maintenance system configured to determine a service time at which to perform service on the building equipment by performing a predictive optimization of a total cost of operating and servicing the building equipment over a time period. The service time is a decision variable in the predictive optimization. The automatic parts resupply system includes a resupply manager. The resupply manager is configured to generate a parts resupply order for the building equipment based on a result of the predictive optimization. The resupply manager is configured to determine a transmission time at which to transmit the parts resupply order to a parts supplier. The resupply manager is configured to transmit the parts resupply order to the parts supplier at the transmission time.
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公开(公告)号：US11635232B2
公开(公告)日：2023-04-25
申请号：US17212938
申请日：2021-03-25
发明人： Thomas D. Chase
摘要： A flame sensor for a furnace of a heating, ventilation, and air conditioning (HVAC) system includes a sensor body and an electrically conductive member of the sensor body. The electrically conductive member is configured to be disposed within a flame region of a burner of the furnace and configured to receive electrical current from a controller of the furnace. The flame sensor also includes an anti-oxidation coating disposed on an outer surface of the electrically conductive member and configured to transmit the electrical current from the electrically conductive member. The anti-oxidation coating is configured to contact a flame produced by the burner and expose the electrical current to the flame.
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公开(公告)号：US11629866B2
公开(公告)日：2023-04-18
申请号：US16252243
申请日：2019-01-18
摘要： A heating, ventilation, and/or air conditioning (HVAC) system includes a cooling circuit, a reheat circuit, a recovery circuit, and a control system. The cooling circuit includes a condenser, a compressor, an evaporator, and a three-way valve, and the HVAC system is configured to circulate refrigerant through the cooling circuit in a cooling operating mode. The reheat circuit includes a reheat heat exchanger, the compressor, the evaporator, and the three-way valve, and the HVAC system is configured to circulate refrigerant through the reheat circuit in a reheat operating mode. The recovery circuit extends between the condenser and the compressor and includes a recovery valve. The control system is configured to send a first signal to the three-way valve to switch the HVAC system between the cooling operating mode and the reheat operating mode and a second signal to the recovery valve to recover refrigerant from the cooling circuit at a subsequent time based on the first signal.
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公开(公告)号：US11624524B2
公开(公告)日：2023-04-11
申请号：US16730798
申请日：2019-12-30
摘要： A method for calibrating a flow sensor in a heating, ventilation, or air conditioning (HVAC) system. The method includes receiving, at a controller, a request to enter a calibration mode and, in response to receiving the request, automatically commanding a flow control device to achieve a target flow rate. The method further includes generating, by the controller, calibration data for the flow sensor using a reference flow value of the flow rate when the flow control device has achieved the target flow rate and a corresponding flow measurement from the flow sensor.
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公开(公告)号：US11609589B2
公开(公告)日：2023-03-21
申请号：US15944560
申请日：2018-04-03
摘要： An actuator in a HVAC system includes a mechanical transducer, an input connection configured to receive a power supply line voltage, and a voltage divider circuit. The voltage divider circuit includes a first capacitor in series between the input connection and the mechanical transducer, a second capacitor in parallel with the first capacitor between the input connection and the mechanical transducer, and a first transistor operable to connect and disconnect the first capacitor and/or the second capacitor from the voltage divider circuit based on the power supply line voltage, thereby adjusting a capacitance between the input connection and the mechanical transducer. The voltage divider circuit is configured to receive the power supply line voltage from the input connection, use at least one of the first capacitor or the second capacitor to reduce the power supply line voltage to a reduced voltage, and provide the reduced voltage to the mechanical transducer.
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公开(公告)号：US11609009B2
公开(公告)日：2023-03-21
申请号：US17195025
申请日：2021-03-08
发明人： Norman J. Blanton
IPC分类号： G05D15/00 , F24F11/36 , F24F11/77 , F24F140/12
摘要： A refrigerant leak management system includes a controller is configured to receive a signal indicative of a refrigerant pressure within a refrigerant circuit and determine whether the refrigerant pressure is indicative of a refrigerant leak in the refrigerant circuit. In response to determining that the refrigerant pressure is indicative of the refrigerant leak, the controller is configured to activate a fan configured to motivate air proximate the refrigerant circuit.
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公开(公告)号：US11609005B2
公开(公告)日：2023-03-21
申请号：US16146051
申请日：2018-09-28
发明人： Anil V. Bhosale
IPC分类号： F24F11/30 , F24F11/67 , F25B49/02 , F24F140/20 , F24F110/12
摘要： A heating, ventilation, and/or air conditioning (HVAC) system, includes a housing configured to direct an air flow through an air flow path of the housing and an evaporator configured to translate between a first position and a second position, such that the evaporator is disposed within the air flow path in the first position and the evaporator is disposed external to the air flow path in the second position.
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公开(公告)号：US11598554B2
公开(公告)日：2023-03-07
申请号：US17175348
申请日：2021-02-12
申请人： York Guangzhou Air Conditioning and Refrigeration Co., Ltd. , Johnson Controls Technology Company
发明人： Jinqiang Wu , Zuowei Zhong , Yunhong Huang , Aihua Tan
摘要： The present application provides a filter fixing device, comprising: a lock mounting piece, a hold-down piece, a push rod and at least one connecting rod. The lock mounting piece is provided with a lock used for engaging the lock receiving part on the filter fixing frame; the hold-down piece and the lock mounting piece are connected to each other in such a way that they can move relative to each other in a first direction, and the hold-down piece is used to hold down the filter; the push rod is connected to the hold-down piece and can pivotally rotate around an axis; at least one connecting rod is pivotally connected to the push rod and the lock mounting piece; the filter fixing device is configured in such a way that the rotation of the push rod relative to the hold-down piece may cause relative motion of the hold-down piece and the lock mounting piece in the first direction. The filter fixing device provided by the present application has a simple structure, is easy to operate, and can firmly hold the filter so that it is possible to easily replace the filter while meeting the requirement on the filtering performance of the air conditioning unit.
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公开(公告)号：US11592212B2
公开(公告)日：2023-02-28
申请号：US17258728
申请日：2019-03-17
摘要： A vapor compression system includes a first conduit fluidly coupling a liquid collection portion of a condenser and an evaporator, where the first conduit is configured to direct a first flow of refrigerant from the condenser to a first inlet of the evaporator and a second conduit fluidly coupling the liquid collection portion of the condenser and the evaporator, where the second conduit is configured to direct a second flow of refrigerant from the condenser to a second inlet of the evaporator via gravitational force, and where the first inlet is disposed above the second inlet relative to a vertical dimension of the evaporator.
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公开(公告)号：US11555629B2
公开(公告)日：2023-01-17
申请号：US16795283
申请日：2020-02-19
摘要： A heating, ventilation, and/or air conditioning (HVAC) system includes a discharge section housing forming a chamber, a first opening formed in the discharge section housing such that the chamber is configured to receive an air flow from a blower of the HVAC system via the first opening, and a second opening formed in the discharge section housing such that the second opening is positionally offset to the first opening. The chamber is configured to discharge the air flow through the second opening. The HVAC system also includes a guide extending across the chamber and sloping toward the second opening such that the guide is configured to direct the air flow from the first opening toward the second opening.
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