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公开(公告)号：US11472017B2
公开(公告)日：2022-10-18
申请号：US16717443
申请日：2019-12-17
发明人： Yunjie Shangguan
摘要： A power tool including a housing, a motor housed in the housing, and a handle formed on the housing, the handle being provided with a speed regulating mechanism for adjusting the rotational speed of the motor. A speed limiting mechanism cooperates with the speed regulating mechanism. The speed limiting mechanism includes a first knob and a second knob disposed on two sides of the handle. The first knob and the second knob are interlocked with each other to be toggled to limit the motor to operate at a fixed rotational speed.
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公开(公告)号：US20210347339A1
公开(公告)日：2021-11-11
申请号：US17381905
申请日：2021-07-21
申请人： SAF-HOLLAND, Inc.
发明人： William J. Hicks , Andrew L. Wallner , David Sun , Tianyu Ling , Patrick Salois , Brian M. Collins
摘要： A landing gear assembly includes a leg assembly including a first portion and a second portion, wherein the first and second portions of the leg assembly telescopingly engage one another, a gear assembly operably coupled to the first and second leg portions and configured to telescopingly move the first and second leg portions with respect to one another, the gear assembly including an input shaft, and a drive assembly coupled to the gear assembly comprising a gear arrangement configured to drive the drive shaft of the gear assembly at a first speed and at a second speed that is different than the first speed, an electric motor configured to drive the gear arrangement, and a battery configured to provide power to the motor.
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公开(公告)号：US20210273531A1
公开(公告)日：2021-09-02
申请号：US17190354
申请日：2021-03-02
申请人： Falcon Power, LLC
IPC分类号： H02K11/28 , H03K17/687 , H03K3/011 , H05K7/20
摘要： A cascade MosFet circuit design for variable gear switching using pulse width modulation (PWM) between electronic gears to achieve a smooth transition is disclosed. In an embodiment, in the system, there can be three separate stages of two or more switches from very low amperage to hundreds of amps that can be automatically selected within a chosen stage. The automatic switching can be programmed to be power (e.g., current) sensitive or can be both power and electronic gear sensitive as to cascade into the right MosFet combination for different gear settings and still select greater values for varying power levels. Such a smooth transition can allow the generator or motor using such cascade MosFet circuit design to operate more efficiently and/or more quietly.
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公开(公告)号：US11095193B2
公开(公告)日：2021-08-17
申请号：US16705460
申请日：2019-12-06
申请人： Black & Decker Inc.
发明人： Eric W. Wachter , Erik A. Ekstrom , Alpay Hizal
IPC分类号： H02K9/00 , H02K9/22 , B25F5/00 , H02K11/33 , H02K7/14 , H02K11/28 , B25B21/02 , H02K5/22 , H05K1/02 , H05K1/11 , H05K1/18
摘要： An electronic switch module for a power tool having an electric motor is provided, including a printed circuit board (PCB), power switches mounted on the PCB and configured to switchably supply electric power from a power source to the electric motor, a series of primary heat sinks mounted on the PCB in association with the power switches, and a secondary heat sink mounted on the primary heat sinks. Output wires attached to the PCB to facilitate electrical connection between the power switches and the electric motor are passed through a slot of the secondary heat sink.
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公开(公告)号：US20210249981A1
公开(公告)日：2021-08-12
申请号：US17274038
申请日：2019-09-04
摘要： A reconfigurable rotating electric machine having a rotor to rotate in association with a stator. Coils are arranged to form the windings of one or more phases. Each coil or group of coils has a pair of terminals to receive an electrical input. Switches are arranged to connect each coil or group of coils in series or parallel with another coil or group of coils to form defined coil topology configurations. A processor has memory storing settings to determine a state of each of the switches for each of the defined coil topology configurations. The switches are controllable to connect the coils into a force expansion topology configuration to form an electrical machine having two, four, or more virtual poles.
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公开(公告)号：US11018558B2
公开(公告)日：2021-05-25
申请号：US16322524
申请日：2017-08-07
申请人： INTERROLL HOLDING AG
发明人： Stefan Hamacher
IPC分类号： H02K11/00 , H02K11/33 , B65G23/08 , B65G43/02 , H02K1/27 , H02K7/116 , H02K11/28 , B65G43/00 , H02K11/20
摘要： A drum motor, comprises a drum tube having a cavity formed therein and a longitudinal axis, a shaft, which runs in the longitudinal axis and on which the drum tube is mounted by means of at least one rotary bearing, an electric synchronous drive unit arranged in the cavity of the drum tube, having a stator and a rotor, which are arranged in the longitudinal axis of the drum tube and wherein the rotor is connected to the drum tube and the stator is connected to the shaft, and a control unit for controlling the synchronous drive unit. The control unit of the drum motor has a frequency converter and is fastened directly to the shaft.
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公开(公告)号：US20210021178A1
公开(公告)日：2021-01-21
申请号：US16817634
申请日：2020-03-13
申请人： MITSUBA Corporation
IPC分类号： H02K11/28
摘要： The disclosure provides a manufacturing method of a touch sensor unit that includes a tubular insulator housing a plurality of electrodes, and the plurality of electrodes housed in the tubular insulator are prevented from being fixed in a short-circuited state by the resin flowing into the tubular insulator. The manufacturing method of the touch sensor unit includes: a first process of disposing an end of a sensor holder, a resistor, connection wires, and a separator, which are included in a mold part provided at an end of the touch sensor unit, in a mold; and a second process of supplying molten resin into the mold in a state where the tubular insulator housing linear electrodes is pressed from an outer side of the sensor holder in the mold. In the second process, the tubular insulator is pressed within a range where the tubular insulator and an insertion protrusion overlap.
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公开(公告)号：US20200161778A1
公开(公告)日：2020-05-21
申请号：US16682768
申请日：2019-11-13
申请人： BorgWarner Inc.
发明人： Thomas GLASS , Kai HOMANN
摘要： An assembly (2) is described for the electrical connection of two components, in particular of a power electronics switch (58) to an electric motor (56) of a charging device (48), wherein a first component (24) has a first contact element (4) made from a conductive material and formed along a longitudinal axis (6) and designed with an outer surface (8) at least partially surrounding the longitudinal axis (6), and a second component (30) has a second contact element (14) made from a conductive material and is designed with a cavity (18) formed along the longitudinal axis (6), whose inner surface (20) corresponds to the outer surface (8) of the first contact element (4), wherein either the inner surface (20) of the second contact element (14) or the outer surface (8) of the first contact element (4) is provided with a profile (22) which has a plurality of projecting elements, wherein the inner surface (20) and the outer surface (8) are selected with respect to their lateral dimensions such that the projecting elements of the profile (22) penetrate in an area close to the surface during insertion of the first contact element (4) into the second contact element (14).
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公开(公告)号：US20190001479A1
公开(公告)日：2019-01-03
申请号：US15749003
申请日：2016-06-27
摘要： In order to provide a tool in which a motor is assuredly prevented from being restarted when power is turned on again after a power supply interruption due to a contingency, a disk grinder 1 includes a motor 2 and a switch 12 switchable between an ON position at which the motor is driven by an operator and an OFF position at which the motor is stopped. Furthermore, first and second restart prevention means 60, 90 are provided to disable driving of the motor until the switch is turned again to the ON position when power supplied to the motor 2 falls below or under a predetermined value.
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公开(公告)号：US09687008B1
公开(公告)日：2017-06-27
申请号：US15284692
申请日：2016-10-04
申请人： Carl Harris
发明人： Carl Harris
CPC分类号： A22C25/025 , A22C25/006
摘要： The fish descaling tool is adapted for use with a fish. Specifically, the fish descaling tool is a hand held device that is designed to remove scales from fish. The fish descaling tool is an electrically powered device that rotates a scaling cylinder in such a manner that the scaling cylinder will remove the scales of the fish without damaging the underlying flesh of the fish. The fish descaling tool comprises a scaling cylinder, a hood, a handle, a motor, and a power source.
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