公开(公告)号：US20220345063A1

公开(公告)日：2022-10-27

申请号：US17860945

申请日：2022-07-08

Applicant: Regal Beloit America, Inc.

Inventor： Ludovic Andre Chretien

IPC: H02P27/04 ,  H02P23/28 ,  H02P27/08

Abstract: An electric motor system is described. The electric motor system includes a drive circuit configured to supply variable frequency current and a contactor configured to supply line frequency current, wherein the drive circuit includes a three-phase inverter and an H-bridge including two phases of the inverter. The electric motor system also includes an electric motor and a controller. The controller is configured to control the inverter to supply variable frequency current to the electric motor over a first duration and determine to control the drive circuit to transition from supplying variable frequency current to supplying line frequency current. The controller is also configured to determine a polarity of a sensed alternating current (AC) voltage, disable at least two switches of the H-bridge, and control the contactor to close, thereby preventing the contactor and the inverter from energizing the electric motor at the same time once the contactor is closed.

公开(公告)号：US11466889B2

公开(公告)日：2022-10-11

申请号：US16813299

申请日：2020-03-09

Applicant: Regal Beloit America, Inc.

Inventor： Bin Yang ,  Brian L. Beifus ,  Roger C. Becerra

IPC: F24F11/75 ,  F24F11/64 ,  F24F11/88 ,  H02K7/14

Abstract: An electric blower system is described. The blower system includes a blower, an airflow system, a sensor, and an electric motor. The electric motor includes a motor controller. The motor controller is configured to operate the motor at a first torque and a first speed to generate a first airflow, determine a first airflow value wherein the first airflow value, the first torque, and the first speed define a first benchmark data point. The motor controller is also configured to operate the motor at a second torque and a second speed to generate a second airflow and determine a second airflow value wherein the second airflow value, the second torque, and the second speed define a second benchmark data point. The motor controller is further configured to generate an operating profile for the blower system defining torque, speed, and airflow points for different system resistances.

公开(公告)号：US20220294307A1

公开(公告)日：2022-09-15

申请号：US17680007

申请日：2022-02-24

Applicant: REGAL BELOIT AMERICA, INC.

Inventor： Jeffrey William Crosson

IPC: H02K5/22 ,  H02K3/52 ,  H02K5/10 ,  H02K9/06

Abstract: An electric machine assembly includes a housing having a first portion and a second portion. The electric machine assembly also includes a midframe coupled between the first and second portions such that the mid-frame and the first portion partially define a first compartment and such that the mid-frame and the second portion partially define a second compartment. A terminal box is coupled to the mid-frame and configured to house a first plurality of electrical components. A stator is positioned within the first compartment and a second plurality of electrical components positioned with the second compartment. The stator and the second plurality of electrical components are electrically coupled by a first plurality of wires extending through the mid-frame, and the first plurality of electrical components are electrically coupled to the second plurality of electrical components by a second plurality of wires extending through the second compartment and into the terminal box.

公开(公告)号：US20220271617A1

公开(公告)日：2022-08-25

申请号：US17680013

申请日：2022-02-24

Applicant: REGAL BELOIT AMERICA, INC.

Inventor： Jeffrey William Crosson

IPC: H02K5/22 ,  H02G11/00 ,  H05K7/14

Abstract: An electric machine assembly includes a housing defining an inner cavity and an electrical component positioned within the cavity. The electric machine assembly also includes a mid-frame positioned within the cavity and configured to separate the cavity into a first compartment and a second compartment. The mid-frame includes a guide structure for guiding a plurality of wires through the second compartment toward the electrical component.

公开(公告)号：US11306725B2

公开(公告)日：2022-04-19

申请号：US16869219

申请日：2020-05-07

Applicant: Regal Beloit America, Inc.

Inventor： Steven W. Post ,  Matthew Turner ,  Steven Camilleri

IPC: F04D17/16 ,  F04D25/06 ,  F04D29/28 ,  F04D29/26

Abstract: A blower assembly having a blower housing, an impeller fan within the blower housing, the impeller fan being adapted for rotation about an axis and having a plurality of impeller blades and having an axial length, a motor having a stator and a rotor, the motor having an axial length, the rotor being configured to rotate relative to the stator for rotation about the axis, the rotor and the impeller fan being coupled so that the impeller fan rotates with the rotor about the axis, wherein a ratio of the axial length of the motor to the axial length of the impeller fan is less than 0.3, and a motor support bracket operatively securing the stator to one of the first and second side walls of the blower housing.

公开(公告)号：US11293444B2

公开(公告)日：2022-04-05

申请号：US16439039

申请日：2019-06-12

Applicant: Regal Beloit America, Inc. ,  Regal Beloit Australia Pty, Ltd.

Inventor： Jason Jon Kreidler ,  Samuel Augustin Dieckhaus ,  Alexander Julian Baer

IPC: F04D13/06 ,  F04D29/048 ,  H02K5/15 ,  F04D29/58 ,  F04D29/043 ,  H02K5/20 ,  F04D1/00

Abstract: A pump assembly includes a pump housing having a fluid inlet, a fluid outlet, and a fluid channel defined therebetween. The pump assembly also includes an impeller positioned within the fluid channel and configured to channel a fluid between the fluid inlet and the fluid outlet. The pump assembly also includes a motor assembly having a shaft coupled to the rear plate, wherein the shaft defines a first fluid cavity coupled in flow communication with an opening in the rear plate to enable fluid flow into the shaft. The motor assembly also includes a motor housing having a back plate positioned relative to the impeller rear plate to define a second fluid cavity therebetween. The motor assembly further includes a stator assembly coupled to the back plate and positioned opposite the second fluid cavity such that the fluid facilitates cooling the stator assembly.

公开(公告)号：US20220099337A1

公开(公告)日：2022-03-31

申请号：US17547859

申请日：2021-12-10

Applicant: Regal Beloit America, Inc.

Inventor： Steven W. Post ,  Jeffrey Jay Long ,  William S. Gatley, JR.

IPC: F24H9/00 ,  F23L17/00 ,  F24H1/20

Abstract: A draft inducer blower assembly for use with a water heater has a housing, a motor, and a fan. The housing has an exhaust volute surrounding the fan and a base adapted to be mounted atop a water heater. The housing has an inlet port adapted to receive exhaust gas from the water heater. The fan is connected to the motor for rotation about a rotation axis. The exhaust volute has a cut-off at a cut-off angle relative to the rotation axis. The exhaust volute has an exhaust outlet passageway that extends to an exhaust port. The exhaust port is lower than the top of the exhaust volute.

公开(公告)号：US11277045B2

公开(公告)日：2022-03-15

申请号：US16834067

申请日：2020-03-30

Applicant: Regal Beloit America, Inc.

Inventor： Subhash Marutirao Brahmavar ,  Lester Benjamin Manz ,  Ludovic Andre Chretien ,  Changiz Rashidzadeh ,  Dan Mircea Ionel

IPC: H02K1/27 ,  H02K1/276 ,  H02K15/03 ,  H02K21/16 ,  H02K3/02

Abstract: In one embodiment, a permanent magnet rotor is provided. The permanent magnet rotor includes at least one permanent magnet and a substantially cylindrical rotor core including an outer edge and an inner edge defining a central opening. The rotor core includes a radius R, at least one pole, and at least one radial aperture extending radially though the rotor core from the outer edge to a predetermined depth less than the radius. The at least one radial aperture is configured to receive the at least one permanent magnet. The rotor further includes at least one protrusion extending into the at least one radial aperture, the at least one protrusion positioned substantially along a bottom of the at least one radial aperture and configured to facilitate retention of the at least one permanent magnet within the at least one radial aperture.

公开(公告)号：US20210381718A1

公开(公告)日：2021-12-09

申请号：US16891924

申请日：2020-06-03

Applicant: Regal Beloit America, Inc.

Inventor： Ludovic Andrew Chretien ,  Leonard Theodore McElhose ,  Mohammad Khalil Dahouk ,  Paul Steven Mullin

IPC: F24F11/77 ,  H02P3/06 ,  H02P1/02 ,  F25D17/06 ,  F25D29/00

Abstract: Described herein is an electric motor assembly for an environmental control system. The electric motor assembly includes a fan configured to rotate to circulate air within a controlled environment chamber of the environmental control system, and an electric motor coupled to the fan and configured to rotate the fan. The electric motor includes a motor controller configured to receive a braking control signal from a sensor associated with the controlled environment chamber. The braking control signal indicates an entrance to the controlled environment chamber is about to be opened. The motor controller is also configured to initiate braking the electric motor in response to receiving the braking control signal.

公开(公告)号：USD938010S1

公开(公告)日：2021-12-07

申请号：US29716498

申请日：2019-12-10

Applicant: Regal Beloit America, Inc.

Designer： Jeevan Gnana Robinson ,  Neha Kumari ,  Yunpeng Yang