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公开(公告)号：US20170063179A1
公开(公告)日：2017-03-02
申请号：US15254379
申请日：2016-09-01
Applicant: Johnson Electric S.A.
Inventor： Yue LI , Tao ZHANG , Chui You ZHOU , Jie CHAI , Jun Jie CHU , Xiao Bing ZUO , Yong WANG , Yong LI
CPC classification number: H02K1/146 , H02K1/2726 , H02K1/276 , H02K1/278 , H02K7/145 , H02K21/16 , H02K29/03 , H02K2213/03
Abstract: A single phase brushless motor and a power tool are provided. The single phase brushless motor includes a stator and a rotor. The stator includes a stator core and windings wound around the stator core. The stator core includes a yoke and at least two teeth. The tooth includes a tooth body and a tooth tip. The tooth tip includes first and second pole shoes. The two pole shoes of each tooth are symmetrical about a center line of the tooth body. Each tooth defines a positioning groove facing the rotor between the two pole shoes. Pole shoes of adjacent two of the at least two teeth are spaced apart by a slot opening. A width of the positioning groove is greater than a width of the slot opening. The peak value of the cogging torque of the motor is increased, and the motor has a large startup torque.
Abstract translation: 提供单相无刷电机和电动工具。 单相无刷电动机包括定子和转子。 定子包括定子芯和围绕定子芯缠绕的绕组。 定子芯包括轭和至少两个齿。 牙齿包括牙体和牙齿尖端。 齿尖包括第一和第二极靴。 每个齿的两个极靴与牙体的中心线对称。 每个齿在两个极靴之间限定面向转子的定位槽。 所述至少两个齿中相邻的两个齿的极靴通过槽口间隔开。 定位槽的宽度大于槽口的宽度。 马达的齿槽转矩的峰值增加，马达起动转矩大。
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公开(公告)号：US20170248145A1
公开(公告)日：2017-08-31
申请号：US15440521
申请日：2017-02-23
Applicant: Johnson Electric S.A.
Inventor： Jun Jie CHU , Fu Ping ZHANG , Yan Fang ZHI
CPC classification number: F04D25/062 , F04D17/16 , H02K1/146 , H02K1/187 , H02K1/2786 , H02K3/18 , H02K5/1735 , H02K7/14 , H02K21/22 , H02K21/227 , H02K29/03 , H02K2213/03
Abstract: An outer-rotor motor includes a support base, a stator attached around the support base, and a rotor rotatably mounted to the stator. The support base includes a substrate and a bearing holder separately formed and assembled together. A through hole is formed in a central area of the substrate. The bearing holder includes a first end engaged with the through hole and a second end protruding in a direction away from the substrate.
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公开(公告)号：US20170254311A1
公开(公告)日：2017-09-07
申请号：US15446273
申请日：2017-03-01
Applicant: Johnson Electric S.A.
Inventor： Xiao Bing ZUO , Jun Jie CHU
IPC: F02N15/02
CPC classification number: F02N15/02 , F02N11/00 , F02N15/006 , F02N15/022 , F02N15/046 , F02N15/067 , F16H57/02 , F16H2057/02082
Abstract: An engine, an engine starter and its housing assembly are provided. The housing assembly includes a gear mounting portion for mounting a driving gear and a switch mounting portion for mounting a solenoid switch. The switch mounting portion comprises a connecting portion and a cover body. The connecting portion is connected with the gear mounting portion and comprises a through structure for mounting the solenoid switch, the cover body covers a top end of the through structure. A wall of the connecting portion corresponding to the gear mounting portion defines an opening for mounting a shifting fork, which is in communication with the through structure.
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Patent Agency Ranking
公开(公告)号：US20130152733A1
公开(公告)日：2013-06-20
申请号：US13714958
申请日：2012-12-14
Applicant: Johnson Electric S.A.
Inventor： Jun KE , Po Wah CHAN , Jun Jie CHU
IPC: F02N11/00
CPC classification number: F02N11/00 , F02N11/14 , F02N15/006 , F02N15/025 , F02N15/043 , Y10T74/134
Abstract: A starter has a high voltage direct current electric motor, a speed reduction device, a clutch, an output gear and a switch box configured to turn on the electric motor. The output gear is driven by the electric motor via the speed reduction device and the clutch. The starter also has a stationary axle on which the output gear is installed. The electric motor has an output shaft. The speed reduction device has a drive gear fixed to the output shaft and a driven gear meshed with the drive gear, the driven gear being rotatably mounted to the axle via a bushing.
Abstract translation: 起动器具有高电压直流电动机，减速装置，离合器，输出齿轮以及配置成接通电动机的开关盒。 输出齿轮通过减速装置和离合器由电动机驱动。 起动器还具有安装输出齿轮的固定轴。 电动机具有输出轴。 减速装置具有固定到输出轴的驱动齿轮和与驱动齿轮啮合的从动齿轮，从动齿轮通过轴套可旋转地安装在轴上。
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公开(公告)号：US20130119790A1
公开(公告)日：2013-05-16
申请号：US13673580
申请日：2012-11-09
Applicant: Johnson Electric S.A.
Inventor： Jin Yan Gan , Chui You ZHOU , Jun Jie CHU , Wan Mei HE
CPC classification number: H02K1/276 , H02K1/02 , H02K1/2773 , H02K7/145 , H02K21/16
Abstract: An electric motor has a wound stator and a permanent magnet rotor. The rotor has a plurality of rotor core portions and a plurality of permanent magnets, the rotor core portions and the permanent magnets being arranged alternately in a circumferential direction of the rotor. The permanent magnets are made of material containing ferric oxide and polarized generally in the circumferential direction of the rotor. The motor may be used in a power tool or a lawn mower.
Abstract translation: 电动机具有缠绕定子和永磁转子。 转子具有多个转子芯部分和多个永磁体，转子芯部分和永磁体在转子的圆周方向上交替布置。 永磁体由含有氧化铁的材料制成，并且大致在转子的圆周方向上极化。 马达可用于电动工具或割草机。
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公开(公告)号：US20170331355A1
公开(公告)日：2017-11-16
申请号：US15584754
申请日：2017-05-02
Applicant: Johnson Electric S.A.
Inventor： Wan Mei HE , Jing CHEN , Jun Jie CHU
Abstract: A motor and a rotary assembly of the motor are provided. The motor includes a rotary assembly and a stationary assembly supporting the rotary assembly. The rotary assembly includes a rotary shaft, a retainer rotating along with the rotary shaft, and a rotor magnet retained by the retainer. A portion of the rotor magnet engages with a portion of the retainer via interference fit, and a gap is defined between another portion of the rotor magnet and another portion of the retainer.
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公开(公告)号：US20170222501A1
公开(公告)日：2017-08-03
申请号：US15424015
申请日：2017-02-03
Applicant: Johnson Electric S.A.
Inventor： Jun Jie CHU , Fu Ping ZHANG , Yan Fang ZHI
CPC classification number: F04D17/16 , F04D25/0646 , F04D25/082 , F04D29/668 , H02K1/146 , H02K1/148 , H02K1/2786 , H02K15/095 , H02K29/03 , H02K2213/03 , H02K2213/09
Abstract: A blower includes a housing, and an impeller and a motor received in the housing. The motor drives the impeller to rotate. The motor includes a stator and a rotor. The stator includes a stator core and windings wound around the stator core. The stator core includes a yoke and teeth extending from the yoke. A distal end of each of the teeth forms a tooth tip, with a slot opening formed between each two adjacent tooth tips. The rotor includes a permanent magnet forming a plurality of magnetic poles. The stator and the rotor define an air gap therebetween. A circumferential width of the slot opening is equal to or less than two times of a radial width of the air gap.
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公开(公告)号：US20150380192A1
公开(公告)日：2015-12-31
申请号：US14751840
申请日：2015-06-26
Applicant: Johnson Electric S.A.
Inventor： Wan Mei HE , Jun Jie CHU , Li Bing LIAO
CPC classification number: H01H50/20 , F02N11/0851 , F02N11/0862 , F02N11/087 , H01H50/34 , H01H50/42 , H01H50/44 , H01H51/065 , H01H2235/01
Abstract: A starter for an internal combustion engine includes an electric motor and a solenoid switch. The solenoid switch includes a housing, a fixed core, a movable core, two spaced contacts, and a conductive member arranged to interconnect the contacts when the solenoid is turned on. The movable core is connected to a pinion of the motor which is movable to engage with a flywheel of the engine. The fixed core includes a pull-in coil of aluminum wire, a holding coil of copper wire, and a magnetic core. The motor is connected in series with the pull-in coil. When the solenoid is energized, the coils generate a magnetic field that attracts the movable core to the magnetic core, thereby the moving the pinion into engagement with the flywheel and causing the conductive member to interconnect the contacts.
Abstract translation: 用于内燃机的起动器包括电动马达和电磁开关。 螺线管开关包括外壳，固定芯，可动芯，两个间隔开的触点，以及导电构件，布置成当螺线管接通时互连触点。 可动铁芯连接到电动机的小齿轮上，该小齿轮可移动以与发动机的飞轮接合。 固定芯包括铝线的拉入线圈，铜线的保持线圈和磁芯。 电机与引入线圈串联连接。 当螺线管通电时，线圈产生吸引可动铁芯到磁芯的磁场，从而使小齿轮与飞轮接合并使导电部件互连。
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