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公开(公告)号：US11557443B2
公开(公告)日：2023-01-17
申请号：US16883352
申请日：2020-05-26
摘要： A coupler between an activator mounted on an enclosure and an electronic protection device located within the enclosure facilitates alignment between the coupler and the electronic protection device during installation and requires no tool for installation. The coupler is positioned over an opening in the electronic protection device and oriented such that a first coupling portion is configured to engage a complementary coupling portion on the electronic protection device. The coupler may be manually mounted, engaging the complementary coupling portions on the door handle coupler and the electronic protection device without requiring a tool for installation. The coupler includes an upper sleeve configured to receive an axle, connected to the activator, that rotates independently of a lower sleeve which is mounted to the electronic protection device, facilitating orientation of the activator on the outside of the enclosure. The coupler provides for local lock-out of the electronic protection device.
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公开(公告)号：US20220279714A1
公开(公告)日：2022-09-08
申请号：US17189498
申请日：2021-03-02
发明人： Kyusang RO
摘要： An electric lawn mower includes an electric motor and battery supported on a wheeled motor deck, a handle mounted on the deck and pivotable between first and second handle positions, and a pivoting failsafe switch system for respectively enabling and disabling powered operation of the electric motor when the handle is in the first and second handle positions. The pivoting switch assembly includes a magnet and a magnet sensor sensing the magnet. The magnet is carried by a turning member that moves when the handle is moved. The magnet sensor respectively generates high and low signals when the handle is located in the first and second handle positions. The sensor signals are transmitted to a motor control unit for respectively enabling and disabling the operation of the electric motor.
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公开(公告)号：US20210152058A1
公开(公告)日：2021-05-20
申请号：US16684777
申请日：2019-11-15
摘要： A motor assembly includes a motor, a controller controlling at least one aspect of operation of the motor, and a control housing defining a control chamber. The controller is in part received within the control chamber. The controller includes a main electronics board and a modular connector assembly. The modular connector assembly includes a secondary electronics board and a connector at least in part supporting the secondary electronics board. The connector includes an inner connector portion and an outer connector portion. The connector extends through the control housing such that the inner connector portion is disposed inside the control chamber and the outer connector portion is disposed outside the control chamber. The outer connector portion defines a first access portal facilitating access to a first component of the secondary electronics board.
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公开(公告)号：US10998805B2
公开(公告)日：2021-05-04
申请号：US14806979
申请日：2015-07-23
申请人： BLACK & DECKER INC.
发明人： Curtis Stanfield , Wong Kun Ng
摘要： A power tool with a motor which is rotatable in a forward direction and a reverse direction. A tool holder is driven by the motor. The power tool has a user operable trigger for operating the motor, a reversing switch for choosing the direction of rotation of the motor and a controller. The controller determines a direction of rotation of the motor based on a characteristic of the motor.
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公开(公告)号：US10855141B2
公开(公告)日：2020-12-01
申请号：US16353744
申请日：2019-03-14
发明人： Tomas Gottfried
IPC分类号： H02K7/20 , H02K19/38 , H02K7/18 , H02K7/02 , H02K11/042 , H02K19/36 , F02N11/04 , F02N11/08 , H02K11/28 , F16F15/30
摘要： A power supply system includes a regulated power source that has an a synchronous machine, a flywheel with the shaft connected thereto, an electrical generator electrically connected through a switch to the synchronous machine of the regulated power source, an engine having a main shaft coupled to the shaft of the electrical generator, a power supply, and a switch connected between the electrical generator, the power supply and the regulated power source. The switch transfers power from the regulated power source to the electrical generator so as to cause the electrical generator to rotate the shaft in order to rotate the shaft of the engine during engine start-up.
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公开(公告)号：US10454267B1
公开(公告)日：2019-10-22
申请号：US15996426
申请日：2018-06-01
发明人： Nicholas A. Cooper , Adrian Chavis , Thomas S. Wolf , Zachary K. Foster , Yaritza Brinker , Dalton Paull
IPC分类号： H02P1/46 , H02P1/52 , H02H7/08 , H02K5/22 , H02K11/28 , H04B3/54 , H02K11/33 , H02H1/00 , H02K11/00
摘要： A load protection system and a method of protecting a load. The load protection system includes a PLC transmitter and a PLC receiver, which are configured to communicate a plurality of bits of data, each bit transmitted near a zero-crossing of a voltage on the power lines supplying power to the load, in the form of a high frequency burst of pulses. The pulses are structured in two patterns. The first pattern serves to identify the start of the second pattern, and the second pattern includes the data. The first pattern is unique and not represented within the second pattern. The load may be a motor, and the data may include a parameter value representing a parameter of the motor. A motor controller may evaluate the parameter value to determine whether to institute a warning or alert action, to shut the motor down, or to continue operating.
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公开(公告)号：US20180174773A1
公开(公告)日：2018-06-21
申请号：US15901287
申请日：2018-02-21
申请人： MAKITA CORPORATION
CPC分类号： H01H9/20 , B25F5/00 , H01H2231/048 , H01H2300/024 , H02K7/14 , H02K11/28
摘要： A rechargeable grinder includes a brushless motor, a main body housing configured to accommodate the brushless motor, a main switch and a micro switch configured to distribute power to the brushless motor, and a switch lever capable of moving with respect to the main switch and the micro switch, wherein a lock off lever capable of operating the micro switch in association with movement of the switch lever toward a switch is provided so as to be movable between a lock release position in which the micro switch can be operated and a lock position in which the micro switch cannot be operated.
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公开(公告)号：US20160301339A1
公开(公告)日：2016-10-13
申请号：US14368881
申请日：2014-04-15
发明人： Reijiro Ito
摘要： To provide a brushless DC motor drive circuit operating with low electric power without a hall element, etc., and to provide a drive circuit for brushless DC motor which may be generally started regardless of an amount of load or size of inertia moment.The drive circuit comprises a two-stage amplifying circuit comprised of transistors 13 and 14 for switching and amplifying a drive current to drive coils 11; a detecting coil 15 disposed together with the drive coils in a magnetic field of permanent magnets in a rotor, and connected to a base of the transistor 14 at one end; and a diode connected in series with the other end of the detecting coil 15 and provided between the base and an emitter of the transistor 14, wherein the diode controls and adjusts a base current of the transistor 14 such that the transistor 14 is turned on when induced electromotive force generated in the detecting coil 15 is a reverse voltage, and such that the transistor 14 is turned off when the induced electromotive force of the detecting coil 15 is a forward voltage.
摘要翻译： 驱动电路包括由用于切换和放大驱动线圈11的驱动电流的晶体管13和14组成的两级放大电路; 检测线圈15，其与驱动线圈一起设置在转子的永久磁铁的磁场中，并且在一端与晶体管14的基极连接; 以及二极管，与检测线圈15的另一端串联连接，并且设置在晶体管14的基极和发射极之间，其中二极管控制并调节晶体管14的基极电流，使晶体管14导通， 在检测线圈15中产生的感应电动势是反向电压，并且当检测线圈15的感应电动势为正向电压时，晶体管14截止。
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公开(公告)号：US11532971B2
公开(公告)日：2022-12-20
申请号：US17190362
申请日：2021-03-02
申请人： Falcon Power, LLC
IPC分类号： H02K11/28 , H05K7/20 , H03K3/011 , H03K17/687 , H02K1/20 , H02K3/24 , H02K5/20 , H02K9/197 , H02K1/16 , H02K1/278 , H02K29/03 , H02K5/10
摘要： An electric machine with variable torque generation having a tunable Halbach array configuration. The electric machine includes a magnet assembly for generating a magnetic field. The magnet assembly includes a plurality of fixed magnets disposed in a ring arrangement so that fixed magnets having a north pole faced toward the rotor or stator are alternated with fixed magnets having a south pole faced toward the rotor or stator, a plurality of rotatable magnets disposed within a respective slot formed between two adjacent fixed magnets, a drive assembly for turning the rotatable magnets within the slots to vary the magnetic field generated by the magnet assembly in the rotor or stator, the drive assembly configured to turn the rotatable magnets between a first position wherein the magnetic field in the rotor or stator is augmented and a second position wherein the magnetic field in the rotor or stator is cancelled.
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公开(公告)号：US11499845B2
公开(公告)日：2022-11-15
申请号：US16532652
申请日：2019-08-06
发明人： Peter Spevak
摘要： An apparatus includes a first electrode, a second electrode, and a third electrode having first and second opposing surfaces. The first opposing surface is adjacent the first electrode and separated from the first electrode by a first distance, and the second opposing surface is adjacent the second electrode and separated from the second electrode by a second distance. The third electrode is configured to move relative to the first and second electrodes. A capacitance sensing circuit is coupled to the first and second electrodes. The capacitive sensing circuit is configured to determine a capacitance using the first and second electrodes.
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