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公开(公告)号：US4661733A
公开(公告)日：1987-04-28
申请号：US838581
申请日：1986-03-11
Applicant: Marc A. Heyraud
Inventor： Marc A. Heyraud
CPC classification number: H02K5/225 , H02K11/26 , H02K11/33 , H02K23/54 , H02K23/66 , H02K5/143 , H02K2211/03 , Y10S310/06
Abstract: The motor comprises a flexible circuit composed of a substrate disposed in an air gap between the stator and the rotor, bearing a coating of copper etched to produce the various circuit components. Conductive paths carry the current to brushes soldered on zones of the circuit. Another path leads to further zones constituting shorted turns interconnected by striated areas constituting resistor elements.
Abstract translation: 电动机包括由设置在定子和转子之间的空气间隙中的衬底组成的柔性电路，承载蚀刻的铜的涂层以产生各种电路部件。 导电路径将电流传送到焊接在电路区域上的电刷。 另一路径通过构成电阻器元件的条纹区域导致构成由短路匝互连的另外的区域。
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公开(公告)号：US3849704A
公开(公告)日：1974-11-19
申请号：US30162972
申请日：1972-10-27
Applicant: FRANKLIN ELECTRIC CO INC
Inventor： STREATER A
CPC classification number: H02K5/1285 , H01T4/08 , H02K11/26 , H02K11/40
Abstract: A lightning arrestor comprising an electrode and gas-generating, arc extinguishing material contained within a closed casing is provided for use within a submersible electric motor. The lightning arrestor is located within the motor and is grounded directly to the housing of the submerged motor.
Abstract translation: 提供一种避雷器，其包括电极和包含在封闭壳体内的产生气体的消弧材料，用于潜水电动机内。 避雷器位于电机内，并直接接地到潜水电机的外壳上。
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公开(公告)号：US12113403B2
公开(公告)日：2024-10-08
申请号：US17753159
申请日：2020-08-13
Applicant: AutoNetworks Technologies, Ltd. , Sumitomo Wiring Systems, Ltd. , Sumitomo Electric Industries, Ltd.
Inventor： Kota Oda , Masayuki Kato , Ryohei Sawada
CPC classification number: H02K11/33 , H02K11/26 , H02K11/27 , H02M7/48 , H03K17/063 , H02K2213/06
Abstract: A drive device drives a motor serving as a load. A first upstream switch is disposed upstream from the motor and a first downstream switch is disposed downstream from the motor in a first current path of current flowing via the motor. A second upstream switch is disposed upstream from the motor and a second downstream switch is disposed downstream from the motor in a second current path of current flowing via the motor. A direction of the current flowing in the motor when current flows in the first current path is different from a direction of the current flowing in the motor when current flows in the second current path. The first upstream drive circuit stops flow of current via the first upstream switch when the current flowing through the first upstream switch becomes greater than or equal to a current threshold.
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公开(公告)号：US12055419B2
公开(公告)日：2024-08-06
申请号：US17511623
申请日：2021-10-27
Applicant: HOYI ELECTRONIC TECHNOLOGY CO., LTD.
Inventor： Chi-Yang Chen , Min-Fu Hsieh
CPC classification number: G01D5/142 , H02K11/215 , H02K11/26 , H02K11/33 , G01D5/2451 , H02K29/08
Abstract: An electronic rotary encoder is configured to be disposed on a vertical rotary shaft in a rotary object to obtain two encoded signals: a phase A signal and a phase B signal for calculating a rotational speed and a position. The electronic rotary encoder includes: at least one Hall element outputting Hall signals used as a square wave of the phase A signal; two capacitors, to respectively obtain a first voltage and a second voltage; two buffer gates, to respectively output waveform signals of a first X voltage and a second X voltage; two comparators outputting, a control signal through a latch; and an exclusive OR gate, where a direction signal and the control signal outputted through the latch are inputted to the exclusive OR gate, to obtain the phase B signal.
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公开(公告)号：US12031535B2
公开(公告)日：2024-07-09
申请号：US17271413
申请日：2020-01-28
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Jun Chida , Kiyofumi Shirouzu
IPC: F04B49/10 , F04B35/04 , F04B39/12 , F04B39/14 , F04B49/06 , F04C28/06 , F04C28/28 , H02K11/25 , H02K11/26 , H02K11/27
CPC classification number: F04B49/10 , F04B35/04 , F04B39/121 , F04B39/14 , F04B49/06 , F04C28/06 , F04C28/28 , F04C2270/19 , H02K11/25 , H02K11/26 , H02K11/27
Abstract: A compressor includes a casing accommodating a compression mechanism, a detection device having a detection face configured to detect an internal state of the casing, an elastic member, and a cover mounted to the casing to cover the detection device and a part of the elastic member. The detection face is located opposite an outer peripheral face of the casing. The elastic member includes a first portion overlapping the detection device and a second portion not overlapping the detection device, as seen in plan view. The cover is configured to press the second portion of the elastic member against the casing, with the first portion of the elastic member pressing the detection device against the casing.
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Patent Agency Ranking
公开(公告)号：US20240113599A1
公开(公告)日：2024-04-04
申请号：US18472148
申请日：2023-09-21
Applicant: Apple Inc.
Inventor： Juil LEE
Abstract: Haptic power control techniques provide improved power control for the haptic generator to reduce deficiencies of operation and/or increase performance of the haptic generator across various thermal conditions. In some examples, a first resistance measurement can be obtained and used for estimating an actuation voltage limit for the haptic generator. In some examples, estimating the actuation voltage limit for the haptic generator using the first resistance measurement includes estimating a first actuation voltage limit for the haptic generator when the first resistance measurement is a first resistance value and estimating a second actuation voltage limit for the haptic generator when the first resistance measurement is a second resistance value.
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公开(公告)号：US11855520B2
公开(公告)日：2023-12-26
申请号：US17260667
申请日：2019-06-14
Inventor： Fumiiki Yoneda
Abstract: An electric tool includes a motor and a motor control device. The motor control device is configured to update a command value of a speed of the motor based on a parameter relating to at least one of a voltage of a direct-current power supply for the motor or a magnitude of a load applied to the motor during rotation of the motor.
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公开(公告)号：US11742739B2
公开(公告)日：2023-08-29
申请号：US17408543
申请日：2021-08-23
Applicant: OMRON Corporation
Inventor： Ryuji Kawamoto
IPC: H02K41/035 , H02K7/14 , H02K11/33 , H02K11/26 , A63F7/02
CPC classification number: H02K41/0354 , A63F7/022 , H02K7/14 , H02K11/26 , H02K11/33
Abstract: A gimmick device according to one or more embodiments may include a gimmick and a voice coil motors (VCM). The VCM includes a casing, a permanent magnet, a yoke and iron-core, a bobbin, and a coil part. The gimmick is mounted to the casing on a movable side. The coil part includes a drive and primary coil serving as a drive coil and a primary coil of a displacement sensor including a differential transformer, the drive and primary coil being interlinked with a magnetic flux by the permanent magnet, and two secondary coils of the displacement sensor. The yoke and iron-core may be disposed in a central space defined in the coil part, and serves as an iron core of the displacement sensor.
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公开(公告)号：US11686317B2
公开(公告)日：2023-06-27
申请号：US17372178
申请日：2021-07-09
Applicant: AIR COOL INDUSTRIAL CO., LTD.
Inventor： Shih-Ming Chen
CPC classification number: F04D27/004 , F04D25/088 , H02K7/14 , H02K11/26 , H02K11/33 , H02P7/05
Abstract: A long-distance speed control system for a brushless DC motor of a fan is provided. The long-distance speed control system includes a switch connected with a mains power supply, a switch circuit, a voltage detection module, a power cord, a processing unit, and a drive unit, which can control the multi-stage rotational speed of the motor. In the field of brushless DC motors for fans, there is no need to use analog-to-digital conversion chips between the mains power supply and the processor, having the advantages of low cost, environmental protection, and reduction of waste of earth resources. Besides, the switch, the switch circuit and the power cord can withstand the mains power supply, having the advantages of less signal attenuation and long-distance transmission.
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公开(公告)号：US20180219498A1
公开(公告)日：2018-08-02
申请号：US15749045
申请日：2016-06-27
Applicant: Hitachi Koki Co., Ltd.
Inventor： Kazutaka Iwata , Kazuhiko Funabashi
CPC classification number: H02P6/10 , B23D45/16 , B23D47/12 , B25F5/00 , B25F5/001 , B25F5/02 , H02K7/145 , H02K11/26 , H02K11/33 , H02K29/03 , H02P29/40 , H02P2207/05
Abstract: To provide a power tool capable of suppressing torque ripple and reducing power consumption without demagnetizing the permanent magnets in the rotor. The power tool includes a brushless motor, converting means, voltage detecting, and means conduction switching means. The brushless motor includes: a stator including a plurality of windings; and a rotor rotatable relative to the stator. The converting means is configured to convert an AC voltage supplied from an AC power supply into a varying DC voltage. The voltage detecting means is configured to detect the varying DC voltage. The conduction switching means includes an output line for applying the varying DC voltage to the plurality of windings. The conduction switching means is configured to perform: sequentially switching at least one winding to be applied with the varying DC voltage among the plurality of windings to rotate the rotor; and changing number of conducting windings on the basis of the varying DC voltage, the number of conducting windings being number of the at least one winding to be applied with the varying DC voltage.
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