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公开(公告)号：EP1969702A1
公开(公告)日：2008-09-17
申请号：EP06801547.8
申请日：2006-08-15
申请人： SHOP VAC CORPORATION
CPC分类号： H02K23/64 , A47L9/2878 , A47L9/2889 , H02K23/66
摘要： A motor is disclosed that operates on either AC outlet power or DC battery power with decreased power drop when switching between AC and DC power. The AC power to the motor may be stepped down by using a clipper circuit, while the DC power supplied to the motor may be increased by switching motor field windings from a series wound circuit to a parallel wound circuit. The motor may be used in a vacuum motor embodiment, or in other consumer devices that utilize electric motors.
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2.发明授权
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3.发明公开
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公开(公告)号：EP0673105A2
公开(公告)日：1995-09-20
申请号：EP95301097.2
申请日：1995-02-21
申请人： Black & Decker Inc.
摘要： An electric motor such as a universal series wound motor having permanent magnetic segments (38,40) mounted within slots formed in the poles (14,16) of the stator. The permanent magnets are precisely positioned and securely retained within the slots with an injected metal bonding agent having very stable mechanical properties even under severe temperature conditions. The permanent magnets ensure that a predetermined level of braking current exists when the armature is short circuited to effectively dynamically brake the motor. The AC supply signal is rectified to prevent demagnetization of the permanent magnets and to avoid overheating of the permanent magnets and the armature caused by the continuous changing of polarity of the AC supply signal. An alternative embodiment describes a modified armature core construction that sufficiently reduces eddy current losses to offset the addition of the permanent magnet braking members.
摘要翻译： 一种电动机，例如具有永久磁段（38,40）的通用串联卷绕电动机，其安装在形成在定子的极（14,16）中的槽内。 永久磁铁被精确定位并牢固地保持在槽内，注入的金属粘合剂甚至在恶劣的温度条件下也具有非常稳定的机械性能。 永久磁铁确保当电枢短路时存在预定水平的制动电流，以有效地动态地制动电动机。 交流电源信号被整流以防止永磁体的退磁，并且避免由于交流电源信号的极性的连续变化引起的永磁体和电枢的过热。 替代实施例描述了一种改进的电枢铁芯结构，其充分地减小了涡流损耗以抵消永磁制动构件的添加。
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公开(公告)号：EP1214775A4
公开(公告)日：2004-08-11
申请号：EP00920168
申请日：2000-04-06
申请人： BLACK & DECKER INC
发明人： DU HUNG T
摘要： A motor for a power tool adapted to be powered by either an AC power source or a DC power source. The motor (12) includes a permanent magnet field (30) having an armature (34) disposed within the field (30). The armature (34) includes a shaft (36) having a DC commutator (38) disposed at one end of the shaft (36). The DC commutator (38) is coupled to a first armature winding (40). An AC commutator (42) is disposed coaxially over a portion of the DC commutator (38) and is coupled to a second armature winding (44). A first pair of brushes (46) is disposed on the DC commutator (38) for coupling power from the DC power source to the first armature winding. A second pair of brushes (48) couples rectified AC power to the second armature winding (44). A power module including an AC/DC selector switch (26) enables a user to select whether AC or DC power is to be used to power the tool.
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公开(公告)号：EP1193843A4
公开(公告)日：2003-04-09
申请号：EP01912298
申请日：2001-03-13
发明人： NATSUHARA T , YAMADA TOMIO
摘要： A commutator motor capable of utilizing any of dc and ac power supplies and superior in the function of preventing the burning of coil wires during overload. This commutator motor includes an iron core having a plurality of slots, a rotary shaft inserted centrally through the iron core, and a pair of first and second commutators mounted on the rotary shaft at both ends of the iron core. The first commutator has a first coil wire connected thereto, the first coil wire being wound on the bottom of the slot to form an inner coil portion. The second commutator has connected thereto a second coil having a smaller diameter than that of the first coil wire, the second coil wire being wound on the inner coil in the slot to form an outer coil portion.
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公开(公告)号：EP1043829A3
公开(公告)日：2002-04-17
申请号：EP00302948.5
申请日：2000-04-07
申请人： Black & Decker Inc.
发明人： Du, Hung T.
IPC分类号： H02K23/36
摘要： A motor for a power tool adapted to be powered by either an AC power source or a DC power source. The motor 12 includes a permanent magnet field 30 having an armature 34 disposed within the field. The armature 34 includes a shaft 36 having a DC commutator 38 disposed at one end of the shaft. The DC commutator is coupled to a first armature winding. An AC commutator 42 is disposed coaxially over a portion of the DC commutator 38 and is coupled to a second armature winding 44. A first pair of brushes 46 are disposed on the DC commutator 38 for coupling power from a DC power source to the first armature winding 40. A second pair of brushes 48 couple rectified AC power to the second armature winding 44. A power module including an AC/DC selector switch 26 enables a user to select whether AC or DC power is to be used to power the tool.
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公开(公告)号：EP3306808A1
公开(公告)日：2018-04-11
申请号：EP16802972.6
申请日：2016-04-29
发明人： TANIMOTO, Hideyuki , NAKAYAMA, Eiji
CPC分类号： H02P6/28 , B23D47/12 , B25F5/00 , B25F5/02 , H02K23/64 , H02P4/00 , H02P6/085 , H02P25/18 , H02P25/188
摘要： To provide a power tool capable of suppressing variations in motor characteristics between external power sources with different voltage while preventing an increase in the size of the power tool. The power tool includes: a motor including a stator on which a plurality of windings are wound and a rotor rotatable relative to the stator; an output unit driven by rotation of the rotor; a power source connection part connectable to an external power source serving as a driving power source of the motor; power source voltage detecting means configured to perform detecting a voltage of the external power source connected to the power source connection part; and connection form changing means configured to perform changing a connection form of the plurality of windings on the basis of the voltage of the external power source.
摘要翻译： 提供一种电动工具，其能够抑制具有不同电压的外部电源之间的电动机特性的变化，同时防止电动工具的尺寸增加。 该电动工具包括：电动机，该电动机包括其上缠绕有多个绕组的定子和相对于该定子可旋转的转子; 由转子的旋转驱动的输出单元; 电源连接部分，其可连接到用作电动机的驱动电源的外部电源; 电源电压检测装置，被配置为执行检测连接到电源连接部的外部电源的电压; 以及连接形式改变装置，被配置为基于外部电源的电压执行改变多个绕组的连接形式。
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9.发明公开
公开(公告)号：EP1925070A2
公开(公告)日：2008-05-28
申请号：EP06735831.7
申请日：2006-02-21
申请人： Bojiuc, Dumitru
发明人： Bojiuc, Dumitru
摘要： A pair of stators produce a magnetic field within a space between them, a ferromagnetic toroidal rotor is rotationally mounted within the magnetic field. A plurality of windings are wound radially on the rotor and each winding provides a plurality of coils. Each of coils is interconnected through a switch, the switch configured for placing each of the coils within each winding alternatively in one of an electrical series connection, an electrical parallel connection, and an electrically isolated connection, so that when operated as a generator, a selected output voltage and current are produced by rotor rotation and when operated as a motor a selected output speed and torque are produced.
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公开(公告)号：EP1922796A2
公开(公告)日：2008-05-21
申请号：EP06735830.9
申请日：2006-02-21
申请人： Bojiuc, Dumitru
摘要： A rotating electromagnetic apparatus has a stator including a stator frame supporting parallel spaced apart, disc-shaped permanent magnet sets. Each of the magnet sets is formed as plural, spaced apart, co-planar magnet segments. The segments are arranged with permanent magnet poles of opposite polarity in an alternating sequence. A rotor provides a magnetically permeable rotating rotor frame mounted on an axle and supported by the stator frame. The rotor frame provides a plurality of radially oriented, toroidally wound coils. Like poles of the magnet sets are set in opposing, face-to-face positions with the rotor between them. A current supplying commutator engages the rotor such that each of the coils provides electromagnet poles positioned alternately for attraction and repulsion of the electromagnet poles with respect to the permanent magnet poles thereby causing rotor rotation.
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