• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    FIELD OF THE INVENTION The present invention relates to a unipolar transverse flux machine, in particular two coaxially shaped ferromagnetic rotor rings (14, 15) and an axially unipolar magnetized permanent magnet ring (16) arranged between the rotor rings. A rotor 12, a stator 11 concentric with the rotor shaft 13, a U-shaped stator yoke 19 exhibiting magnetic poles, a magnetic return element 20, and a stator coil 21 It relates to an electric motor having a. In order to achieve a very flat structure and to ensure limited maneuvering in a particular direction, the stator coil 21 consists of two bobbins 22, 23, one of which bobbin sides 221, 231 has a stator yoke 19. And extend across the group of magnetic return elements 20 and are arranged circumferentially along the side of the magnetic return element 20 towards the farther away from the rotor shaft 13 between the arms of the yoke 19. The group spanned by the bobbin side 221 of one bobbin 22 is arranged 90 ° from the group spanned by the bobbin side 231 of the other bobbin 23 physically on the stator circumference.
    公开号:KR20020033197A
    申请号:KR1020027003850
    申请日:2001-07-17
    公开日:2002-05-04
    发明作者:카스팅어귄터
    申请人:클라우스 포스, 게오르그 뮐러；로베르트 보쉬 게엠베하；
    IPC主号:
    专利说明:

    Unipolar Transverse Flux Machine
    [2] In such a monopolar transverse flux machine (DE 100 21 914.4) a ring-shaped bobbin extending coaxially with respect to the rotor axis and extending by the yoke leg of the stator yoke on the outer side of the magnetic return element facing away from the rotor axis. It has already been proposed to form a faulty coil. Here, the machine may be formed in a single phase with one stator module and one rotor module or in a polyphase with at least two stator and rotor modules, and the stator modules arranged adjacent in the axial direction. Each of these constitutes a ring bobbin. In an ideal embodiment, the stator or rotor module is arranged electrically displaced relative to each other by at least 90 °, and the ring bobbin can be anodicly energized by a current pulse in accordance with the rotation angle of the rotor. .
    [3] Single-phase machines with only one rotor and stator module have the disadvantage that they cannot be started by themselves and additional auxiliary machines must be provided for starting. However, it has the advantage of a very flat structure.
    [1] The present invention relates to a unipolar transverse flux machine according to the preamble of claim 1.
    [7] 1 is a perspective view of a unipolar transverse flux machine.
    [8] FIG. 2 is a cross-sectional view along the line II-II of FIG. 1.
    [9] 3 is a diagram of the stator current of the motor.
    [4] The unipolar transverse flux machine according to the invention has the advantages of a two-phase, very flat structure and limited maneuvering in a particular direction assured by the stator.
    [5] Due to the features defined in the other claims, other preferred other embodiments and improvements of the unipolar transverse flux machine given in claim 1 are possible.
    [6] The invention is explained in more detail in the following description according to the embodiment shown in the drawings.
    [10] A monopole transverse flux motor, which is an embodiment of a conventional monopole transverse flux machine shown at various angles and cross sections in the figures, is rotatable within the stator 11 and the stator 11 and rotatable on the rotor shaft 13. The rotor 12 is fixedly supported.
    [11] The rotor 12 is rotatably fixed on the rotor shaft 13 and is supported between two coaxial shafts interposed between the unipolar magnetized permanent magnet ring 16 in the axial direction, i.e., in the direction of the rotor shaft or the housing shaft. Phosphor magnetic rotor rings 14, 15 (FIG. 2). In Fig. 2, the magnetization direction of the permanent magnet ring 16 is given as N-S by way of example. Each rotor ring 14, 15 is toothed at a constant tooth pitch on its outer circumference away from the rotor shaft 13, so that the teeth are separated from each other by the resulting toothed grooves 17. 18 have the same rotation angle difference from each other. The rotor ring 14 and the teeth 18 on the rotor ring 15 are aligned with respect to one another in the axial direction. The rotor rings 14, 15 with integrally formed teeth 18 are formed from the same thin sheet perforations that are sheet formed and preferably overlapping in the axial direction.
    [12] The stator 11 coaxially arranged with respect to the rotor 12 comprises a U-shaped stator yoke 19 with two long yoke legs 191, 192 connected by a transverse web 193, and a stator yoke ( A magnetic return element 20 consisting of two short legs 201 and 202 arranged between each other and connected to each other in a U shape by a transverse web 203 in an embodiment, and a stator coil 21. do. The stator yoke 19 and the magnetic return element 20 forming the stator poles are sheet-formed and composed of a thin laminate from the perforated sheet, the width b ZS of the stator yoke 19 and the width of the magnetic return element 20. Are generally the same when measured in the direction of rotation, respectively. Here, the tooth width b ZR of the teeth 18 on the rotor rings 14, 15 with respect to the width b ZS of the stator yoke 19 and magnetic return element 20 (as measured in the rotation direction, respectively). ) Ratio is greater than 1 and less than 2, preferably 1.5 or less. The stator yokes 19 are fixed on the housing 10 at a pitch corresponding to the tooth pitch, with one yoke leg 191 with the other yoke leg 192 different from the other rotor ring 14 with respect to one rotor ring 14. They are opposed to the ring 15 with radial gaps respectively (FIG. 2). Between the stator yokes 19, each magnetic return element 20 is arranged at a distance of half the yoke pitch from the stator yoke 19, for example a predetermined displacement is allowed to reduce moment fluctuations. The magnetic return elements 20 are again displaced by the mutual yoke pitch. The magnetic return elements 20 extend over both rotor rings 14, 15 and are positioned with their short legs 201, 202 spaced relative to the rotor rings 14, 15, respectively. On the one hand the gap between the stator yoke 19 and the rotor rings 14, 15 and on the other hand between the magnetic return element 20 and the rotor rings 14, 15 is assigned the same size. The free end faces 194 of the yoke legs 191, 192 of the stator yoke 19 have at least the same axial width as the rotor rings 14, 15, or preferably one or both through the axial width. Protrude from the side. The same applies to the magnetic return element 20 having at least the same axial width as the rotor rings 14, 15 or having a free end face 204 projecting on one or both sides via the axial width. .
    [13] The stator coil 21 is identical with two bobbin sides 221, 222 or 231, 232, respectively, and here consists of two bobbins 22, 23, FIG. One bobbin side 221 or 231 of each bobbin 22 or 23 extends coaxially with respect to the rotor shaft or rotor shaft 13 and overlaps in the circumferential stator yoke 19 and the magnetic return element ( Extending above the group of 20, the bobbin side 221 or 231 extends between the yoke legs 191, 192 of the stator yoke 19 on the side of the magnetic return element 20 facing away from the rotor shaft 13. do. Each group includes the same number of circumferentially overlapping stator yokes 19 and magnetic return elements 20, which in this embodiment comprise six stator yokes 19 and six magnetic return elements 20. do. Here, each of the twelve stator yokes 19 and the magnetic return elements 20, the upper group, which is straddled by the bobbin side 221 of the bobbin 22, is the lower group, which is strung by the bobbin side 231 of the bobbin 23, respectively. Are arranged displaced on the circumference electrically by 90 ° with respect to. In FIG. 1, the lower group of magnetic return elements 20 spanned by the bobbin side 231 are radially aligned with the teeth 18 of the rotor 12 and the magnets in the upper group spanned by the bobbin side 221. It can be seen that the return element 20 is displaced in the circumferential direction opposite to the teeth 18 of the rotor 12. For 16 teeth numbers and 22.5 ° tooth pitch, the displacement of both groups of stator yoke 19 and magnetic return element 20 corresponds to a 5.625 ° peripheral angle with respect to each other. The other bobbin sides 221 or 232 of the bobbin 22 or 23 are coaxial with respect to the rotor shaft 13 over the transverse web 193 on the outer side of the stator yoke 19 facing away from the rotor shaft 13. Extending in the shape of a circular cross-sectional shape, such as bobbin side 221 or 231.
    [14] In order to realize an electrically 90 ° displacement of both groups of the stator yoke 19 and the magnetic return element 20 and to accommodate the coil heads of the bobbins 22, 23, the stator yoke 19 belonging to one group The number is smaller than the maximum possible number of stator yokes 19 generated from tooth or yoke pitch. In the embodiment of FIG. 1, the rotor 12 has sixteen teeth 18. The maximum possible number of stator yokes 19 is 16, as is the maximum possible number of magnetic return elements 20. However, in the embodiment of FIG. 1 only six stator yokes 19 and six magnetic return elements 20 are arranged in each bobbin 22, 23, which together collectively each bobbin 22, 23. 12 poles for the bobbin, and the bobbins 22, 23 are arranged radially with respect to each other by each pole to accommodate the coil heads of the bobbins 22, 23 in the space without the poles.
    [15] Both bobbins 22 and 23, each representing the coil phase of the permanent magnet excitation abnormal motor, are energized bipolarly by a current pulse in accordance with the rotation angle of the rotor 12, and the current pulses in the bobbins 22 and 23 For example, the phases are displaced with respect to each other by 90 °. An energization model of both bobbins 22 and 23 is shown in FIG. 3 according to the rotation angle of the rotor 12. The rotation angle difference between the vertical lines shown is 5.625 degrees each.
    权利要求:
    Claims (13)
    [1" claim-type="Currently amended] Axially interposed between the two coaxial ferromagnetic rotor rings 14, 15 and the rotor rings 14, 15 that are toothed at a constant tooth pitch on the outer circumference facing away from the rotor shaft 13, respectively. And a rotor 12 composed of a permanent magnet ring 16 axially unipolar magnetized so as to be rotatably supported on the rotor shaft 13, and a stator 11 concentric with respect to the rotor shaft 13. And yoke legs 191 and 192 connected to each other in a U shape by the lateral web 193 and fixed on the housing 10 at a pitch corresponding to the tooth pitch, so that one yoke leg 191 The stator yoke 19 arranged so that the other yoke leg 192 faces the other stator ring 15 radially with respect to the rotor ring 14, respectively, and the rotation of the rotor 12, respectively. Arranged and rotated between the stator yokes 19 superimposed in the direction Unipolar transverse, such as in particular monopolar transverse flux electric motors, with magnetic return elements 20 extending axially over the rings 14, 15 opposite the rotor with radial clearance and holding the stator coil 21. Flux machine,
    The stator coil 21 comprises two bobbins 22, 23 with two bobbin sides 221, 222 or 231, 232, respectively, which bobbin sides 221 or 231 are connected to the rotor shaft 13. Yoke legs 191 and 192 along the side of the magnetic return element 20 facing away from the rotor shaft 13 above the stator yoke 19 and magnetic return element 20 superimposed relative to one another in the circumferential direction with respect to each other. ) And spanning by the bobbin side 221 of one bobbin 22 are spatially on the stator circumference electrically by 90 ° relative to the group spanning by the bobbin side 231 of the other bobbin 23. A monopolar transverse flux machine characterized in that it is displaced and arranged.
    [2" claim-type="Currently amended] 2. The other bobbin side (222 or 232) of both bobbins (22, 23) extends on the outer side of the transverse web (193) of the stator yoke (19) facing away from the rotor shaft (13). Single pole transverse flux machine.
    [3" claim-type="Currently amended] 3. The monopolar transverse flux machine as claimed in claim 1 or 2, wherein each group comprises a stator yoke (19) and a magnetic return element (20) superimposed on each other in the same number of circumferential directions.
    [4" claim-type="Currently amended] 4. The number of stator yokes (19) according to any one of the preceding claims, wherein the number of stator yokes (19) spanned entirely by one bobbin side (221, 231) of both bobbins (22, 23) is produced from tooth or yoke pitch. Unipolar transverse flux machine, characterized in that it is larger than the maximum possible number of stator yokes (19).
    [5" claim-type="Currently amended] 5. The bobbin according to any one of claims 1 to 4, wherein both bobbins 22 and 23 are bipolarly energized by a current pulse according to the rotation angle Θ of the rotor 12, and the bobbins 22 and 23 Single-pole transverse flux machine, characterized in that the current pulses in the phase are shifted relative to each other by 90 ° in particular.
    [6" claim-type="Currently amended] 6. The monopolar transverse flux machine as claimed in claim 1, wherein the stator yoke (19), the magnetic return element (20) and the rotor rings (14, 15) are sheet-molded. 7.
    [7" claim-type="Currently amended] The monopolar transverse flux machine as claimed in claim 1, characterized in that the magnetic return element is arranged displaced relative to the stator yoke (19), in particular by half of the yoke pitch.
    [8" claim-type="Currently amended] 8. The magnetic return element 20 and the rotor rings 14, 15 on the one hand between the stator yoke 19 and the rotor rings 14, 15 and on the other hand. Unipolar transverse flux machine, characterized in that the radial gap between them is assigned the same size.
    [9" claim-type="Currently amended] 9. The free end face 194 of the yoke legs 191, 192 of the stator yoke 19 has at least the same axial width as the rotor rings 14, 15. And preferably protrude from one or both sides through an axial width.
    [10" claim-type="Currently amended] 10. The unipolar transverse flux as claimed in any one of claims 1 to 9, characterized in that the width of the stator yoke 19 and the width of the magnetic return element 20 are each substantially the same size as measured in the direction of rotation. machine.
    [11" claim-type="Currently amended] The tooth width of the teeth 18 on the rotor rings 14, 15 with respect to the width b ZS of the stator yoke 19 and the magnetic return element 20. The ratio of (b ZR ) is each selected from greater than 1 and less than 2 when viewed in the rotational direction, and preferably less than or equal to 1.5.
    [12" claim-type="Currently amended] 12. The magnetic return element (20) according to any one of the preceding claims, wherein the magnetic return element (20) comprises two short legs (201, 202) opposite each other radially opposed to the rotor rings (14, 15), Single pole transverse flux machine, characterized in that it has a U shape with a transverse web (203) to connect thereto.
    [13" claim-type="Currently amended] 13. The free end face 204 of the short legs 201, 202 of the magnetic return element 20 has at least the same axial width as the rotor rings 14, 15, preferably axially. A unipolar transverse flux machine characterized by protruding from one or both sides through a width.
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    同族专利:
    公开号 | 公开日
    ES2232650T3|2005-06-01|
    WO2002009261A1|2002-01-31|
    EP1208631A1|2002-05-29|
    US6882066B2|2005-04-19|
    AU7838501A|2002-02-05|
    US20020171315A1|2002-11-21|
    DE10036288A1|2002-02-07|
    BR0107035A|2002-05-21|
    EP1208631B1|2004-12-01|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2000-07-26|Priority to DE10036288.5
    2000-07-26|Priority to DE2000136288
    2001-07-17|Application filed by 클라우스 포스, 게오르그 뮐러, 로베르트 보쉬 게엠베하
    2001-07-17|Priority to PCT/DE2001/002668
    2002-05-04|Publication of KR20020033197A
    优先权:
    申请号 | 申请日 | 专利标题
    DE10036288.5|2000-07-26|
    DE2000136288|DE10036288A1|2000-07-26|2000-07-26|Unipolar transverse flux|
    PCT/DE2001/002668|WO2002009261A1|2000-07-26|2001-07-17|Unipolar transverse flux machine|
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