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1. 发明授权

US5030864A Three-phase electrical machine with reduced cogging torque 失效
标题翻译：三相电机减少齿槽转矩
公开(公告)号：US5030864A
公开(公告)日：1991-07-09
申请号：US403555
申请日：1989-09-06
申请人： Henricus M. Van Hout , Jan Janson , Johannes H. H. Janssen , Robertus I. Van Steen
发明人： Henricus M. Van Hout , Jan Janson , Johannes H. H. Janssen , Robertus I. Van Steen
IPC分类号： H02K21/22 , H02K21/24 , H02K29/00
CPC分类号： H02K21/22 , H02K21/24
摘要： An electrical multipole machine comprises a first machine section (1), a second machine section (3) and a machine shaft (5), about which one machine section is rotatable relative to the other machine section. The first machine section comprises an annular permanent-magnet body (11) having a plurality of adjacent pole pairs (N; S). The second machine section comprises a lamination assembly (25) having teeth (27-35) and coils (37-45). The teeth comprise tooth surfaces (47-55) which are geometrically spaced from one another by slots (57-65) and from the magnet body by an air gap (67). Near the air gap the slots extend in a tangential direction over at least 80 electrical degrees and at the most 90 electrical degrees, or over at least 130 electrical degrees and at the most 150 electrical degrees. The ratio between the number of poles and the number of teeth is either 4:3 or 2:3.
摘要翻译：电动多极机器包括第一机器部分（1），第二机器部分（3）和机器轴（5），一个机器部分相对于另一个机器部分可旋转。第一机器部分包括具有多个相邻极对（N; S）的环形永磁体（11）。第二机器部分包括具有齿（27-35）和线圈（37-45）的层压组件（25）。这些齿包括通过狭槽（57-65）几何地彼此间隔开的齿面（47-55），并且通过气隙（67）与磁体本体隔开。在气隙附近，槽沿着切线方向延伸至少80电度和最多90电度，或超过至少130电度和最多150电度。极数与齿数之比为4：3或2：3。

2. 发明授权

US4703236A Brushless d.c. motor 失效
标题翻译：无刷直流发动机
公开(公告)号：US4703236A
公开(公告)日：1987-10-27
申请号：US848504
申请日：1986-04-07
申请人： Johannes H. H. Janssen
发明人： Johannes H. H. Janssen
IPC分类号： H02P6/08 , H02P6/04 , H02P6/06 , H02P6/10 , H02P6/14 , H02P6/02
CPC分类号： H02P6/15
摘要： A brushless d.c. motor comprises a commutation device by means of which the stator coils are connected to and disconnected from a direct-voltage source in a cyclic switching pattern for energizing said stator coils. In order to reduce torque variations as a result of transient effects in the energizing currents during commutation, the commutation device comprises means which cause the instants of disconnection and connection to be shifted by a fixed time interval relative to one another.
摘要翻译：无刷直流电动机包括换向装置，通过该换向装置，定子线圈以循环切换模式连接到直流电源并与其断开，以激励所述定子线圈。为了减少由于在换向期间的通电电流中的瞬态效应而产生的转矩变化，换向装置包括使断开和连接的时刻相对于彼此偏移固定时间间隔的装置。

3. 发明授权

US4354145A Electronically commutating motor 失效
标题翻译：电子换向电机
公开(公告)号：US4354145A
公开(公告)日：1982-10-12
申请号：US207541
申请日：1980-11-17
申请人： Johannes H. H. Janssen
发明人： Johannes H. H. Janssen
IPC分类号： H02P6/14 , H02K29/02
CPC分类号： H02P6/14
摘要： An electric machine with electronic commutation includes two Hall elements arranged at an angular spacing about the rotor axis smaller than the phase difference .phi. required between the energizing signals in order to obtain a correct energization of the motor. The energizing circuit for the stator coils is provided with a combining circuit for linearly combining the signals obtained from the Hall elements in order to obtain signals with a phase difference equal to .phi..
摘要翻译：具有电子换向的电机包括两个霍尔元件，其围绕转子轴线以相对于所述通电信号之间所需的相位差phi的角度间隔布置，以获得电动机的正确通电。用于定子线圈的通电电路设置有用于线性组合从霍尔元件获得的信号的组合电路，以获得具有等于phi的相位差的信号。

4. 发明授权

US4074173A Electric machine 失效
标题翻译：电机
公开(公告)号：US4074173A
公开(公告)日：1978-02-14
申请号：US653084
申请日：1976-01-28
申请人： Johannes H. H. Janssen
发明人： Johannes H. H. Janssen
IPC分类号： H02K29/08 , H02K29/00
CPC分类号： H02K29/08
摘要： The invention relates to a collectorless d.c. machine which is provided with a disc which rotates with the rotor, in which disc magnetically coded tracks are provided which co-operate with magneto-sensitive elements for selectively energizing the stator coils depending on the rotor position. The invention in particular relates to a three-phase motor, while on a disc on the rotor shaft two magnetic codes are provided which are shifted through 120.degree. relative to each other. The magnetic codes are separately detected by a magneto-sensitive element. The two elements together with the associated electronic circuitry which amplifies the two signals and produces a third signal which has a 120.degree. phase shift relative to the two other signals, take the form of one integrated circuit. The invention relates to an electric machine comprising an electronic commutator and a rotor which at least partly consists of a magnetic material and co-operates with stationary stator coils. This machine is provided with a number of magneto-sensitive elements, in particular Hall elements, for selectively applying electric current to the stator coils depending on the rotor position.Such a machine is known from U.S. Pat. 3,486,099, in which machine said coils consist of two centre-tapped coils which are arranged at 90.degree. relative to each other. The rotor is made of a permanent-magnet material with a diametrical North-South magnetization. In the magnetic field of this rotor two Hall elements are disposed, which are actually disposed at an angle of 90.degree. relative to the rotor axis. Thus, the field of the rotating rotor induces signals in the Hall elements with a phase difference of 90.degree., which signals control the current through said coils so that a rotary field is produced in synchronism with the rotor movement.The same principle may also be used in other motors, such as three-phase motors, for example by arranging three Hall elements at 120.degree. relative to each other.The known field detection method for controlling the current through the stator coils has the drawback that for each Hall element required, a space is necessary between the stator and rotor. Moreover for each Hall element a number of signal and supply leads must be provided.It is an object of the invention to provide a machine which does not have said drawback and the invention is therefore characterized in that a multiplicity of magnetically coded tracks are formed on a body which is connected to the rotor, which tracks each co-operate with a magneto-sensitive element.When using a machine according to the invention the Hall elements may be disposed at substantially any suitable location in or, if necessary, outside the machine.For simplicity of construction the magnetically coded tracks in a preferred embodiment of a machine according to the invention are concentric rings which are disposed on a disc-shaped body which is disposed substantially parallel to one of the axial bounding surfaces of the rotor on the rotor shaft.Apart from the previously mentioned drawbacks of the known motor, the use of spatially displaced Hall elements is a disadvantage during assembly of the motor because, for each Hall element, a number of mechanical and electrical connections must be made, while the mutual position must be accurately adjusted.As in the machine according to the invention several more or less independently coded tracks can be provided, the invention, in order to mitigate the last-mentioned drawbacks, is further characterized in that the magneto-sensitive elements are disposed on one carrier plate.When using magneto-sensitive elements which can be manufactured from semiconductor materials, as is the case with Hall elements, it is particularly advantageous according to the invention to provide a carrier plate made of a semiconductor crystal, in which said magneto-sensitive elements are arranged, together with an amplifier circuit, by means of integrated circuit technology. The amplifier circuit amplifies the signals from the magnetosensitive elements, the outputs of said amplifier circuit leading to the stator coils.With respect to the mutual position of the magnetically coded tracks, an electric machine according to the invention, with n phases, is characterized in that n-magneto-sensitive elements are disposed on one carrier plate and are spaced relative to a first magneto-sensitive element through angles of .phi..sub.i, where i equals 2 . . . n, and that the tracks which co-operate with the corresponding magneto-sensitive elements are spaced relative to a first track through angles of ##EQU1## Here, the index i is a sequence number. The n magneto-sensitive elements make angles of .phi..sub.2 . . . to .phi..sub.n relative to a first element and the corresponding n magnetically coded tracks are spaced through angles of ##EQU2## relative to a corresponding first track.The invention further relates to a three-phase machine.In three-phase machines three magneto-sensitive elements may be used for producing signals with a mutual phase difference of 120.degree., which signals supply the three stator coils. When, for example, Hall elements are employed as magneto-sensitive elements, and when said Hall elements are included in an electronic circuit in a similar manner to that described in the cited U.S. Patent, two mutually 180.degree. phase-shifted signals will be available per Hall element. When two Hall elements are used which are spatially shifted relative to the rotor axis through 120.degree., two of the four signals yield a third phase when added, so that with only two Hall elements three-phase signals can be realized.Since the use of a machine according to the invention allows the magneto-sensitive elements, including the associated electronic circuit, to be incorporated in one integrated circuit, it is advantageous for an electric three-phase machine according to the invention, which is provided with two Hall elements, of which the Hall electrodes are connected to amplifier circuits whose output lead to the stator coils, that one Hall electrode of the one Hall element, or a point of the amplifier circuit driven thereby, be connected to one Hall electrode of the other Hall element, or a corresponding point of the amplifier circuit driven thereby, while the amplifier circuit may be a common circuit up from said interconnections and the output(s) thereof is (are) connected to one of the stator coils.Such a machine according to the invention, adapted for three-phase operation and equipped with two magnetically coded tracks which co-operate with two magneto-sensitive elements which are included in one integrated circuit, is more advantageous than a three-phase machine according to the invention which is equipped with three magnetically coded tracks which co-operate with three-magneto-sensitive elements in one integrated circuit especially in the case of mass production of inexpensive machines. In that case no stringent requirements have to be imposed on the tolerances of the width of the magnetically coded tracks because it is sufficient that the two magneto-sensitive elements be located one on each side of the bounding line between the two tracks. If three tracks with three magneto-sensitive elements are used, the tolerances of the centre track should meet stringent requirements because said centre track co-operates with the centre magneto-sensitive element which is included in the integrated circuit, whose dimensions are limited for technological reasons.
摘要翻译：本发明涉及无集电极直流机器设置有与转子一起旋转的盘，其中设置有磁性编码轨道，其与磁敏元件协作，以根据转子位置选择性地给定子线圈供电。本发明特别涉及一种三相电动机，而在转子轴上的盘上，提供两个磁代码，相对于eac

5. 发明授权

US4123772A Multisegment Hall element for offset voltage compensation 失效
标题翻译：用于偏移电压补偿的多段霍尔元件
公开(公告)号：US4123772A
公开(公告)日：1978-10-31
申请号：US801924
申请日：1977-05-31
申请人： Johannes H. H. Janssen
发明人： Johannes H. H. Janssen
IPC分类号： H01L27/22 , H01L43/06
CPC分类号： H01L27/22 , H01L43/065
摘要： A semiconductor device having a Hall element in which, in order to reduce the offset, the Hall element consists of an even number of sub-Hall elements provided in one semiconductor body and the anode and cathode contacts of which are connected together, which sub-Hall elements each have a Hall contact, and in which one half of the Hall contacts is of one polarity and the other half is of the opposite polarity. The sub-Hall elements are divided into groups of each two sub-Hall elements with mutually parallel main current directions, and Hall contacts of the same polarity are connected together. The sub-Hall elements advantageously have a common Hall body in the form of a square of another regular polygon, in which the contacts are placed along the edge of the Hall body.
摘要翻译：具有霍尔元件的半导体器件，为了减小偏移，霍尔元件由设置在一个半导体本体中的偶数个子霍尔元件和阳极和阴极触点连接在一起构成，霍尔元件各自具有霍尔触点，其中霍尔触点的一半具有一个极性，另一半具有相反的极性。子霍尔元件被分成具有相互平行的主电流方向的每两个子霍尔元件的组，并且相同极性的霍尔触点连接在一起。子霍尔元件有利地具有以另一规则多边形的正方形的形式的公共霍尔体，其中触点沿着霍尔体的边缘放置。

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