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公开(公告)号：WO2021016565A1
公开(公告)日：2021-01-28
申请号：PCT/US2020/043511
申请日：2020-07-24
Applicant: EMERSON CLIMATE TECHNOLOGIES, INC.
Inventor： LAKHKAR, Nikhil R. , GEHRET, Kevin J. , BEISNER, Russ M.
Abstract: A compressor may include a compressor shell, a motor, a compression mechanism, and an assembly that houses an electronic component. The electronic component may control operation of the compressor and/or diagnose compressor faults. The assembly may include a shell, an electronic component, a fan, and an airflow deflector. The shell member may define an enclosure having an internal cavity. The fan and the electronic component may be disposed within the internal cavity. The airflow deflector may include a base portion, a first leg, and a second leg. The first and second legs may be spaced apart from each other and extend from the base portion. The fan may force air against the base portion. A first portion of the air may flow from the base portion along the first leg. A second portion of the air may flow from the base portion along the second leg.
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公开(公告)号：WO2023081146A1
公开(公告)日：2023-05-11
申请号：PCT/US2022/048566
申请日：2022-11-01
Applicant: EMERSON CLIMATE TECHNOLOGIES, INC.
Inventor： MARCINKIEWICZ, Joseph G. , QIN, Mark , LAKHKAR, Nikhil R. , DZIUBA, Robert
Abstract: In other features, a refrigeration system is provided and includes a compressor motor, an inverter, a converter and a control module. The inverter is configured to convert a direct current (DC) bus voltage to an alternating current (AC) voltage and supply the AC voltage to the compressor motor. The converter is configured to convert a DC input voltage to the DC bus voltage. The control module is configured to obtain a parameter and in response to the parameter exceeding a predetermined threshold, reduce the DC bus voltage and at least one of (i) reduce a switching frequency, (ii) increase an amount of negative d-axis current of the compressor motor, or (iii) reduce a speed of the compressor motor.
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