201141010 六、發明說明： 【發明所屬之技術領域】 本發明大體上係關於電機。更特定言之，本發明係關於 一種旋轉的調變磁極電機’諸如具有一永久磁鐵轉子之一 旋轉的橫向磁通電機。可取決於應用領域而將此類型電機 用作為一電動機或一發電機。 【先前技術】 橫向磁通電機（transverse flux machine; TFM)拓撲係一 調變磁極電機之一實例。已知其具有許多優於習知電機之 優點。一單側徑向磁通靜子之基本設計的特徵在於平行於 空氣間隙之一簡單的單相線圈且具有圍繞該線圈且在面對 β亥空氣間隙之輪齒的兩個平行列中暴露之一大體上u形的 輛狀物區段。 如（例如）Jack等人之專利申請案第W02007/024184號中 所述’一高效轉子之一實例為使用與軟磁極區段或軟磁極 片組合之所謂的内埋磁鐵以允許永久磁鐵磁場在橫向於運 動之一方向上磁通集中或靈活。 W02007/024184揭示一種旋轉電機，其包含一第一靜子 芯體區段，該第一靜子芯體區段大致上為環形且包含複數 個輪齒；一第二靜子芯體區段，該第二靜子芯體區段大致 上為環形且包含複數個輪齒；一線圈，其配置在該等第一 與第二環形靜子芯體區段之間；及一轉子，其包含複數個 永久磁鐵》該第一靜子芯體區段、該第二靜子芯體區段、 該線圈及該轉子環繞一共同的幾何軸線，且該第一靜子芯 152806.doc 201141010 體區段及該第二靜子芯體區段之該複數個輪齒係經配置以 朝該轉子凸出。另外’該第二靜子芯體區段之該等輪齒相 對於該第一靜子芯體區段之該等輪齒圓周錯位，且藉由轴 向延伸由軟磁材料製成之磁極區段而使該轉子中之該等永 久磁鐵在圓周方向上相互分隔。 可藉由軸向堆疊複數個靜子相位區段而獲得一多相電 機。該等個別靜子相位區段之堆疊有利地利用該等個別相 位區段之間的一實體磁性分隔以減小可能具有在操作期間 減小該空氣間隙中的有效磁通之一影響的該等相位之間的 磁性耗合。 可藉由一適當的壓實（compaction)製程由金屬粉末有利 地製造該等靜子芯體區段。可將該等第一與第二靜子芯體 區製造為在製造該靜子時裝配之兩個單獨元件。 WO2009/116936揭示一種高效的壓實製程，其中將該等第 一與第二靜子芯體區段兩者壓實為一單一的整合組件。 §玄線圈通常具有提供電流至該線圈之兩根連接導線（一 引導線及一尾隨導線），需將該等連接導線自該線圈引導 至該靜子之一連接區域。 大體上期望提供可以較低製造成本製造且可高效裝配之 一調變的磁極電機的若干組件以便獲得一調變的磁極電 機。大體上進一步期望提供滿足下列標準之一或多項的一 調變的磁極電機的若干組件：高度穩定性、高度耐用性、 高度抗應變性、較輕的重量、所得之調變的磁極電機之高 效能數或值（諸如單位體積之扭矩及/或單位電流之扭矩卜 152806.doc 201141010 【發明内容】 本文揭示—種用於—旋轉電機之-靜子，該靜子包括： •一第環形靜子芯體區段，各環形靜子芯體 區段包含自該等第一與第二環形靜子芯體區段之各自 的％形靜子芯體區段凸出之各自的複數個輪齒； •-靜子芯體背部，其提供該等第—與第二環形靜子芯 體區4又之間的一軸向磁通橋； 線圈，其軸向配置在該等第一與第二靜子芯體區段 之間，其中該等第一與第二靜子芯體區段及該線圈環 繞一共同的幾何軸線； 其中該第一靜子芯體區段包括形成一導線通道之至少—凹 槽以便建立引導至該線圈或自該線圈引導之—導線的—徑 向通路，其中該第二靜子芯體區段包括用於引導該等第一 與第一靜子芯體區段在相對於該第一靜子芯體區段之該等 輪齒之該第二靜子芯體區段之該等輪齒的一預定圓周位置 中相互裝配的一指標凸出物；且其中該指標凸出物係經調 適以軸向延伸至該導線通道中以相對於該第一靜子芯體區 段界疋該第二靜子芯體區段的一圓周位置。 如此，可藉由組合該指標特徵與該導線通道而使該等靜 子芯體區段利用少量的三維特徵保持相對簡單的結構，因 此提供具有較低的工具崩溃風險之一穩固的製程（例如在 該等靜子芯體區段係藉由一粉末壓實製程由磁性粉末製成 之時）。 藉由提供用於將該線圈之一連接導線饋送至該靜子之一 152806.doc 201141010 連接區域的一導線通道，可相對於在該等靜子芯體區段之 間提供的環形穴的大小而最佳化該線圈之大小。應瞭解的 是’該線圈可能包含一單一繞組或多重繞組。 該指標凸出物可具有一軸向尺寸，其使該指標凸出物僅 延伸到該導線通道之一深度之一部分中，以便留出該指標 凸出物與該導線通道之一底部之間的一導線之一通路。該 指標凸出物可能具有與該導線通道之一截面寬度匹配之一 橫向尺寸，以便允許該指標凸出物在該導線通道中之一滑 動配合且提供該等第一與第二靜子芯體區段間之—精確的 圓周對齊。 在一些實施例中，該靜子芯體區段係一軟磁結構.。一優 點在於軟磁結構之改良的㈣率弓丨起改良的單位體積之效 能。在一實施例中，該等靜子芯體區段係由磁性粉末（諸 如軟磁性粉末）製成。藉由以磁性粉末製成該等靜子芯體 區段’可簡化靜子裝置之製造，且利用有效的三維磁通路 徑之優點的磁通集中可為更高效。 , ·"…八印於目磁性粉禾壓實或 形-亥靜子心體區段之衝壓機而形成佈線通道。當在該第一 ㈣段之―第—側上提供該導線通道時及當該第— 體區段之-第二側上相對之該第一靜子β '凸出物（例如呈一隆脊形式）時， =出物係與該導線通道軸向對齊，可以―簡單的工 :2統-的壓實比率製造該第—靜子芯體區段，這= r j或甚至’肖除該第一靜子芯體區段之軸向厚度的變 152806.doc 201141010 異β本文中所述之該靜子的一進一步優點在於其製造僅需 要簡單、穩固及相對廉價之工具加工。 在一些實施例中，該等第一與第二靜子芯體區段各包括 一凹槽，該凹槽形成一導線通道以便建立引導至該線圈或 自該線圈引導之一導線的一徑向通路；及一指標凸出物， 其用於引導該等第一與第二靜子芯體區段在相對於該第一 靜子芯體區段之該等輪齒之該第二靜子芯體區段之該等輪 齒的一預定圓周位置中相互裝配；且其中該指標凸出物係 經調適以軸向延伸至該等第一與第二靜子芯體區段之對應 的另一靜子芯體區段的導線通道中以相對於該第一靜子芯 體區段界定該第二靜子芯體區段的一圓周位置。此外，各 靜子怒體區段之該指標凸出物可自該靜子芯體區段之該導 線通道圓周錯位。因此，該靜子包括與該線圈之繞組幾何 形狀匹配且簡化該線圈之安裝的兩個圓周上及軸向上分隔 的徑向導線通道。在一些實施例中，該線圈包括配置在該 線圈之各自的軸向側上之兩根連接導線（一引導線及一尾 隨導線），因此進一步促進該靜子之一高效裝配。 在一些實施例中，該等靜子芯體區段之一者或兩者可包 括一個以上凹槽’各凹槽形成一各自的導線通道。例如， 該靜子可包括複數個線圈（例如多重平行繞組）以減小可改 良最小的關鍵機械彎曲半徑或阻礙皮膚深度之導線大小， 從而導致在增加的頻率下之較高的歐姆電阻。 可將該等第一與第二靜子芯體區段提供為兩個相同的組 件，因此藉由使用兩個靜子芯體半部之一單一設計提供一 152806.doc 201141010 高效的製造以便能夠藉由一輩一的T 备 f巧秸田早的工具加工套件製造兩個 靜子怎體區段。 該靜子芯體背部可在徑向上位於該線圈之一第一側上， @該等輪齒在徑向上位於與該第-側相對之該線圈的一第 一側上。因此，當該導線通道提供穿過該靜子芯體背部之 . 一徑向通路時，該導線通道提供自繞組區域至該靜子之連 接區域的一通路。 提供該磁通橋之該靜子芯體背部可為與該等第一與第二 靜子芯體區段同心配置之一靜子軛狀物構件。在一些實施 例中，各環形靜子芯體區段具有鄰近該線圈之一内側及遠 離該線圈之一外側；且該第一靜子芯體區段包括自該第一 靜子芯體區段之該内側軸向凸出的一環形凸緣，該環形凸 緣形成該靜子芯體背部之至少一部分。該凸緣可在該圓周 方向上大致連續且與該靜子芯體區段同心。 在一些實施例中，該第二靜子芯體區段包括自該第二靜 子芯體區段之該内側轴向凸出的一環形凸緣，且該第—靜 子芯體區段之該環形凸緣鄰接該第二靜子芯體區段之該環 形凸緣以便形成該靜子芯體背部。 - 如此’在此等實施例中，將該靜子芯體背部提供為一個 • 或兩個靜子芯體區段之一整合部分。藉由配置具有整合的 靜子芯體背部之此一靜子芯體區段，可促進靜子總成之部 件的製程及該靜子總成之裝配程序且使其等更具成本效 益。 因此’該等靜子芯體區段可提供各自的環形壁，該等環 152806.doc 201141010 形壁提供徑向的磁通路徑且界定用於容納該線圈之一穴的 側壁。輪齒自該等環形壁之一第一圓周邊緣徑向凸出。界 疋該靜子芯體背部之至少一部分之該凸出物係配置在接近 或處在與該第一邊緣相對之該等環形壁的一第二圓周邊緣 處。 本發明係關於包含上文及下文所述之該靜子及對應的方 法、裝置及/或產品構件之不同的態樣，各態樣產生結合 該所提及之第一態樣所述之該等益處及優點的一者或多 者，且各態樣具有對應於結合該所提及之第一態樣所述及/ 或隨附技術方案中所揭示之實施例的一或多個實施例。 特定言之，本文揭示一種用於如上文及下文所述之一靜 子的靜子芯體區段。 此外，本文中所揭示之一種旋轉電機包括上文及下文中 所述之一轉子及一靜子。 在一些實施例中，該轉子包括複數個永久磁鐵。在一些 貫施例中°玄轉子中之該等永久磁鐵係藉由以軟磁材料製 成之磁極區段相互分隔。特定言之，該轉子中之該等永久 磁鐵可藉由軸向延伸的磁極區段在圓周方向上相互分隔。 該等磁極區段可由一磁性粉末製成◎該等永久磁鐵可在該 圓周方向上被磁化且具有交替的定向。 在-些實施例（亦稱為外轉子組態）中，該轉子係圍繞該 等第-與第二靜子芯體區段配置’且其中該等輪齒徑向向 外延伸。在替代實施例（亦稱為内轉子組態）令，該靜子圍 繞該轉子配置’且該等輪齒徑向向内延伸。 152806.doc •10· 201141010 -貫fe例中，s亥旋轉電機係一調變的磁極電機。在 ::知的電機中’線圈明確形成磁場之多極結構，且磁芯功 此僅為攜帶此多極場以鏈結磁鐵及/或其他線圈。在-調 • ^的磁極電機中，磁路以該線圈所產生之-非常弱的磁極 (、常為兩個）开）成該多極磁場。在一調變的磁極電機 中，該等磁鐵通常明確形成匹配的多極場，但是可能具有 由一單一磁鐵形成多極場之磁路。在操作期間，一調變的 磁極電機之實施例具有一三維⑽磁通路徑，包含相對於 移動方向之橫向上的一磁通路徑分量。該靜子及/或轉子 可包括此一橫向的磁通路徑分量，亦即軸向上之一磁通路 控分量。 具有該調變之一益處在於每個磁極會遭遇該線圈之磁動 勢（MMF)的全部，使得隨著磁極數目增加磁場強度 (MMF/米）&之增加而在該線圈中未產生任何改變。可將此 與一習知電機相比較，其中隨著磁極數目增加，線圈數目 隨之增加，且因此各線圈變得更小。然而，極距隨磁極數 目增加而減小，使得隨著磁極數目增加，一習知電機中之 磁場強度大約為恆定，這是因為MMF/線圈減小與極距減 • 小平衡。 在一些實施例中，該調變的磁極電機包括一爪形磁極配 置或延伸。對於調變的磁極電機，將由一圓周/軸向表面 形成之扭矩的一幾何形狀視為固定（亦即一徑向場電機）， 可隨磁路攜帶該場徑向跨越空氣間隙，該等空氣間隙在圓 周上間隔一極距’可在該靜子或該轉子中或在兩者中部分 152806.doc 201141010 進行該操作’且在兩個方向上軸向進行該操作以包圍該線 圈。若該軸向磁路在圍繞該線圈之該靜子中閉合，則產生 該爪形磁極配置。 該旋轉電機可為一多相電機，其中該靜子係一多相靜 子’其中該等相位在該轴向上並排配置，且其中各相位包 括兩個靜子芯體區段（各具有一各自的輪齒組）、連接該等 靜子芯體區段之一磁通橋及一線圈，且其中該等輪齒係經 配置以朝該轉子凸出。 【實施方式】 參考附圖，對本發明之實施例之下列說明性及非限制詳 細描述進一步闡明本發明之以上及/或額外的目的、特徵 及優點》 在下列描述中，對附圖進行參考，該等附圖以繪示方式 展示可如何實踐本發明。 本發明係關於-調變的磁極電機1⑽之領域，圖以圖] 中展示該調變的磁極電機100之一實例 靜子10包括磁性饋送由軟磁芯結構形成 一中心線圈20(例如，一單一繞組）。然4 一實例。調變的磁極電機201141010 VI. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention generally relates to electric machines. More particularly, the present invention relates to a rotating modulated pole motor such as a transverse flux machine having one of a permanent magnet rotor rotating. This type of motor can be used as an electric motor or a generator depending on the field of application. [Prior Art] A transverse flux machine (TFM) topology is an example of a modulated magnetic pole motor. It is known to have many advantages over conventional motors. The basic design of a single-sided radial flux stator is characterized by a simple single-phase coil parallel to one of the air gaps and having one of the two parallel columns surrounding the coil and facing the teeth of the β-air gap. A generally u-shaped segment of the vehicle. An example of an efficient rotor is the use of a so-called embedded magnet in combination with a soft magnetic pole section or a soft magnetic pole piece to allow the permanent magnet magnetic field to be used, as described in, for example, the patent application No. WO2007/024184 to the same. The flux is concentrated or flexible in one direction transverse to the motion. W02007/024184 discloses a rotating electrical machine comprising a first stator core section, the first stator core section being substantially annular and comprising a plurality of teeth; a second stator core section, the second The stator core segment is substantially annular and includes a plurality of gear teeth; a coil disposed between the first and second annular stator core segments; and a rotor including a plurality of permanent magnets a first stator core segment, the second stator core segment, the coil and the rotor surround a common geometric axis, and the first stator core 152806.doc 201141010 body segment and the second stator core region The plurality of gear teeth of the segment are configured to project toward the rotor. Further, the teeth of the second stator core segment are offset from the circumference of the teeth of the first stator core segment and are axially extended by a magnetic pole segment made of a soft magnetic material. The permanent magnets in the rotor are separated from each other in the circumferential direction. A multiphase motor can be obtained by axially stacking a plurality of stator phase segments. The stacking of the individual stator phase segments advantageously utilizes a physical magnetic separation between the individual phase segments to reduce those phases that may have the effect of reducing one of the effective magnetic fluxes in the air gap during operation Magnetic compatibility between. The stator core segments can advantageously be fabricated from metal powder by a suitable compaction process. The first and second stator core regions can be fabricated as two separate components that are assembled when the stator is fabricated. WO 2009/116936 discloses an efficient compaction process in which both the first and second stator core segments are compacted into a single integrated assembly. The sinusoidal coil typically has two connecting wires (a guiding wire and a trailing wire) that supply current to the coil, and the connecting wires are guided from the coil to a connection region of the stator. It is generally desirable to provide several components of a modulated pole motor that can be manufactured at lower manufacturing costs and that can be efficiently assembled in order to obtain a modulated pole motor. It is generally further desirable to provide several components of a modulated pole motor that meet one or more of the following criteria: high stability, high durability, high strain resistance, light weight, and efficient use of the resulting modulated pole motor Energy number or value (such as torque per unit volume and/or torque per unit current) 152806.doc 201141010 [Disclosed herein] A stator for a rotating electrical machine, the stator comprising: • a ring-shaped stator core a segment, each annular stator core segment comprising a respective plurality of teeth protruding from respective ones of the first and second annular stator core segments; • a stator core a back, which provides an axial flux bridge between the first and second annular stator core regions 4; a coil axially disposed between the first and second stator core segments, Wherein the first and second stator core segments and the coil surround a common geometric axis; wherein the first stator core segment includes at least a groove forming a wire passage to establish guidance to the coil or The a coil-guided-radial path of the wire, wherein the second stator core segment includes means for directing the first and first stator core segments relative to the first stator core segment An index projection that is assembled with each other in a predetermined circumferential position of the teeth of the second stator core segment of the tooth; and wherein the index projection is adapted to extend axially into the wire passage Positioning a circumferential position of the second stator core segment relative to the first stator core segment. Thus, the stator core segment can be utilized in a small amount by combining the index feature with the wire channel The three-dimensional features maintain a relatively simple structure, thus providing a robust process with a lower risk of tool collapse (e.g., when the stator core segments are made of magnetic powder by a powder compaction process). By providing a wire path for feeding one of the coil connection wires to one of the stators 152806.doc 201141010 connection area, the size of the annular hole provided between the stator core segments can be maximized Jiahua The size of the coil. It should be understood that the coil may contain a single winding or multiple windings. The index projection may have an axial dimension that allows the index projection to extend only to one of the depths of the conductor channel. Means, in order to leave a path of a wire between the indicator protrusion and the bottom of one of the wire channels. The index protrusion may have a lateral dimension matching one of the wire channel widths to allow the The index projections are slidably engaged in one of the wire passages and provide precise circumferential alignment between the first and second stator core segments. In some embodiments, the stator core segments are a soft magnetic Structure: An advantage is that the improved (4) rate of the soft magnetic structure is effective in improving the unit volume. In one embodiment, the stator core section is made of a magnetic powder such as soft magnetic powder. The fabrication of the stator device from the magnetic powder can simplify the manufacture of the stator device, and the concentration of flux utilizing the advantages of an effective three-dimensional flux path can be more efficient. , · "... Eight printed on the magnetic powder and compacted - shaped - Hai Jingzi heart section of the punch to form a wiring channel. When the wire passage is provided on the "first" side of the first (four) segment and the first stator β' projection is opposite to the second side of the first body portion (for example, in the form of a ridge) When, the output system is axially aligned with the wire channel, and the first stator core segment can be fabricated by a simple work ratio: rj or even the first stator A variation in the axial thickness of the core section 152806.doc 201141010 A further advantage of the stator described herein is that it requires only simple, robust and relatively inexpensive tooling for its manufacture. In some embodiments, the first and second stator core segments each include a recess that defines a wire passage to establish a radial path leading to or guiding one of the wires from the coil And an index protrusion for guiding the first and second stator core segments to the second stator core segment of the teeth relative to the first stator core segment The predetermined circumferential positions of the teeth are assembled to each other; and wherein the index projections are adapted to extend axially to another corresponding one of the first and second stator core segments A circumferential position of the second stator core segment is defined in the wire passage relative to the first stator core segment. In addition, the index protrusion of each of the stator anger segments may be offset from the circumference of the wire channel of the stator core segment. Thus, the stator includes two circumferentially and axially separated radial wire passages that match the winding geometry of the coil and simplify the installation of the coil. In some embodiments, the coil includes two connecting wires (a guide wire and a trailing wire) disposed on respective axial sides of the coil, thereby further facilitating efficient assembly of one of the stators. In some embodiments, one or both of the stator core segments may include more than one groove' each groove forming a respective wire passage. For example, the stator may include a plurality of coils (e.g., multiple parallel windings) to reduce the minimum critical mechanical bending radius or the wire size that impedes skin depth, resulting in higher ohmic resistance at increased frequencies. The first and second stator core segments can be provided as two identical components, thus providing a 152806.doc 201141010 efficient manufacturing by using a single design of two stator core halves to enable The one-of-a-kind T-prepared stalker's early tooling kit makes two stators. The stator core back may be located radially on a first side of the coil, and the teeth are radially on a first side of the coil opposite the first side. Thus, when the wire passage provides a radial passage through the back of the stator core, the wire passage provides a passage from the winding region to the connecting region of the stator. The stator core back provided with the flux bridge may be one of the stator yoke members concentrically disposed with the first and second stator core segments. In some embodiments, each annular stator core segment has an inner side adjacent one of the coils and away from an outer side of the coil; and the first stator core segment includes the inner side of the first stator core segment An annular flange projecting axially, the annular flange forming at least a portion of the back of the stator core. The flange may be substantially continuous in the circumferential direction and concentric with the stator core section. In some embodiments, the second stator core segment includes an annular flange that projects axially from the inner side of the second stator core segment, and the annular projection of the first stator core segment The rim abuts the annular flange of the second stator core section to form the stator core back. - Thus, in these embodiments, the back of the stator core is provided as an integrated portion of one or two stator core segments. By configuring the stator core section with the integrated stator core back, the process of the components of the stator assembly and the assembly procedure of the stator assembly can be facilitated and made more cost effective. Thus, the stator core segments can provide respective annular walls that provide a radial flux path and define a sidewall for receiving a hole in the coil. The teeth project radially from a first circumferential edge of one of the annular walls. The projections of at least a portion of the back of the stator core are disposed proximate or at a second circumferential edge of the annular wall opposite the first edge. The present invention relates to different aspects of the method and apparatus, and/or product components, including the above and below, each of which produces the same as described in connection with the first aspect mentioned. One or more of the benefits and advantages, and each aspect has one or more embodiments corresponding to the embodiments described in conjunction with the first aspect mentioned and/or in the accompanying claims. In particular, a stator core segment for a stator as described above and below is disclosed herein. Further, a rotating electrical machine disclosed herein includes one of the rotor and a stator described above and below. In some embodiments, the rotor includes a plurality of permanent magnets. In some embodiments, the permanent magnets in the mysterious rotor are separated from one another by magnetic pole segments made of soft magnetic material. In particular, the permanent magnets in the rotor can be circumferentially separated from one another by axially extending pole segments. The pole segments may be made of a magnetic powder which may be magnetized in the circumferential direction and have an alternating orientation. In some embodiments (also referred to as outer rotor configurations), the rotor is disposed about the first and second stator core segments and wherein the teeth extend radially outward. In an alternate embodiment (also referred to as an inner rotor configuration), the stator surrounds the rotor arrangement & and the teeth extend radially inwardly. 152806.doc •10· 201141010 - In the case of the fe, the shai rotary motor is a modulated pole motor. In a well-known motor, the coil clearly forms a multipole structure of the magnetic field, and the core function only carries the multipole field to link the magnets and/or other coils. In a pole-pole motor, the magnetic circuit is turned into a multi-pole magnetic field by a very weak magnetic pole (often two) generated by the coil. In a modulated pole motor, the magnets typically form a matching multipole field, but may have a magnetic circuit that forms a multipole field from a single magnet. During operation, an embodiment of a modulated pole motor has a three dimensional (10) flux path including a flux path component in a lateral direction relative to the direction of movement. The stator and/or rotor may include such a transverse flux path component, i.e., one of the magnetic path control components in the axial direction. One of the benefits of having this modulation is that each pole encounters all of the magnetomotive force (MMF) of the coil, such that as the number of poles increases, the strength of the magnetic field (MMF/meter) & increases without producing any change. This can be compared to a conventional motor in which the number of coils increases as the number of poles increases, and thus the coils become smaller. However, the pole pitch decreases as the number of poles increases, so that as the number of poles increases, the strength of the magnetic field in a conventional motor is approximately constant because of the MMF/coil reduction and the pole pitch reduction. In some embodiments, the modulated pole motor includes a claw pole configuration or extension. For a modulated pole motor, a geometry of the torque formed by a circumferential/axial surface is considered to be fixed (ie, a radial field motor) that can carry the field radially across the air gap with the magnetic circuit. The gap is circumferentially spaced by a pole pitch 'this can be done in the stator or the rotor or in portions 152806.doc 201141010' and the operation is performed axially in both directions to enclose the coil. The claw pole configuration is produced if the axial magnetic circuit is closed in the stator surrounding the coil. The rotating electrical machine can be a multi-phase electric machine, wherein the stator is a multi-phase stator, wherein the phases are arranged side by side in the axial direction, and wherein each phase comprises two stator core segments (each having a respective wheel) a tooth set), a flux bridge connecting one of the stator core segments and a coil, and wherein the gear teeth are configured to protrude toward the rotor. The above and/or additional objects, features and advantages of the present invention will be further clarified by the following description of the embodiments of the invention. The drawings show how the invention can be practiced. The present invention relates to the field of a modulated pole motor 1 (10), an example of which is illustrated in FIG. 1 . The stator 10 includes a magnetic feed formed by a soft magnetic core structure to form a center coil 20 (eg, a single winding) ). Of course 4 an example. Modulated pole motor
I52806.doc 12 201141010 的一線圈20、提供該等靜子芯體區段14、16之間的一軸向 磁通路從的一磁通橋18及包含複數個永久磁鐵22的一轉子 3〇。此外，該等靜子芯體區段14、該線圈2〇及該轉子3〇環 繞一共同的幾何軸線1〇3 ’且該兩個靜子芯體區段14之該 複數個輪齒係經配置以朝該轉子3〇凸出以形成一閉合的環 形磁通路徑。圖1中之該電機係屬徑向的空氣間隙磁通外 轉子類型，這是因為在該靜子圍繞該轉子之此情況下該 等靜子輪齒在朝該轉子之一徑向上凸出。然而，同樣亦可 相對於該轉子内置該靜子，下列圖式之一些中亦繪示該轉 子類型。本文中所述之該靜子可結合不同類型的調變的磁 極電機使用，例如軸向與徑向類型兩者及對於相對於該轉 子之内置與外置靜子兩者之電機。類似地，本文中所述之 該靜子可應用於單相電機以及多相電機。圖丨中將該等靜 子芯體區段14展示為經層壓，亦即由一薄的電絕緣物分隔 之軟磁材料的堆疊薄片製成。熟習此項技術者熟知層壓靜 子芯體之一般技術。然而，應瞭解的是，可將該等靜子芯 體區段製成由軟磁金屬粉末製成的壓實組件。特定言之， 該等靜子芯體區段可具有如本文中所述之一導線通道及一 指標凸出物。 主動轉子結構30係由偶數個片段22、24構建，而半數片 段（亦稱為磁極區段24)係由軟磁材料製成而其他片段則係 由永久磁鐵材料22製成。最新的方法係將此等片段製造為 個別組件。該片段數目常常可能為相當大，通常為約1〇至 50個個別單體。配置該等永久磁鐵22使得該等永久磁鐵之 152806.doc •13· 201141010 磁化方向大致上為圓周方向，亦即北極與南極分別在一大 致圓周方向上面對。此外，沿圓周計數之每隔一個永久磁 鐵22係使其磁化方向處於相對於其他永久磁鐵之相反方向 上而配置。所要的電機結構中之該等軟磁極單體24的磁性 功能係完全三維，且需要該軟磁極單體24能夠在全部三個 空間方向上以高磁導率高效地攜帶磁通。使用層壓鋼片之 一傳統設計不會展示在垂直於該等鋼片之平面的方向上之 所需的高磁導率，且此處有利地使用展示比一最新的層壓 鋼片結構更高之一磁通各向同性的一軟磁結構及材料β 圖2展示與圖1中相同之徑向調變的磁極電機，但是呈該 已裝配電機之一截面視圖，從而更清晰地展示該等靜子輪 齒102如何朝該轉子延伸及該兩個靜子芯體區段14之該等 靜子輪齒如何相對於彼此旋轉錯位。 該轉子12及該靜子1〇之此設計具有使來自該等永久磁鐵 22之磁通能夠集中，使得面對該靜子丨〇之一輪齒之該轉子 12的表面可能將自鄰近的永久磁鐵22兩者至該面對輪齒之 表面的總磁通呈現的優點。可將該磁通集中視為面對以面 對一輪齒之區域劃分之各磁極區段24的該等永久磁鐵22之 區域的一功能。特定言之，歸因於該等輪齒之圓周錯位， 面對一磁極區段之一輪齒造成僅跨該磁極區段之軸向延伸 部分延伸的一主動空氣間隙。儘管如此，來自該等永久磁 鐵之整個軸向延伸的磁通朝該主動空氣間隙在該磁極區段 中轴向及徑向導向。 各磁極區段24之此等磁通集中屬性可能將微弱的低成本 152806.doc \λ 201141010 永久磁鐵用作為該轉子中之永久磁鐵22，且可能達到非常 同的空氣間隙磁通密度。由導致有效的三維磁通路徑之磁 性粉末製成的該磁極區段可能促進該磁通集中。此外，誃 設計亦可能比在對應的電機類型中更高效地使用該等磁 鐵。該設計之另一優點在於該等磁鐵遭遇與在脈動磁通情 況下之轉子位置減輕問題無關之相同的磁阻。 現在參考圖3至圖7更詳細地描述本文中所揭示之一靜子 的一實例。 圖3展示一三相靜子之一實例，其含有三組靜子組件 對，各對固持一圓周繞組。圖3之該靜子包括三個靜子相 位區段1 0a至1 〇c，各靜子相位區段類似於圖丨之該靜子， 但是針對一外轉子組態（即具有徑向向外凸出之輪齒ι〇2)。 如在圖1之該實例中，圖3之各調變的磁極電機靜子工如 至i〇c包括磁性饋送由軟磁芯結構形成之多個輪齒ι〇2的一 中心線圈20a至20c(例如，一單一繞組）^更特定言之該 所展示之調變的磁極電機100的各靜子相位1〇a至i〇c包括 兩個靜子芯體區段14(各靜子芯體區段14包含複數個輪齒 102且大致上為環形）、配置在該等第一與第二環形靜子芯 體區段之間的一線圈20。此外，各靜子相位之該等靜子芯 體區段14及該線圈20環繞一中心軸3〇3所界定之一共同軸 線，且該等靜子芯體區段丨4之該複數個輪齒i 〇2係經配置 以徑向向外凸出。在圖3之實例中，一轉子（未明確展示）可 與该靜子同轴配置且環繞該靜子，以便形成該靜子及該轉 子之該等輪齒102之間的一空氣間隙。可將該轉子提供為 152806.doc -15- 201141010 如結合圖1所述但是具有使該轉子環繞該靜子之一足夠大 的半控的交替永久磁鐵及磁極單體。應瞭解的是，本文令 所述之該靜子亦可用於一單相電機中或用於具有不同於三 個之相位數目的一多相電機中。 該等靜子芯體區段係安裝在穿過該等靜子芯體區段之中 心開口軸向突出的一圓筒形套管315上。該等靜子芯體區 段係成對配置，使一線圈夾在形成一靜子相位之一對靜子 心體區段之間。該靜子配置係（例如）藉由螺絲連接至該中 心圓筒形套管315之環形蓋平板（未明確展示）軸向固定。該 等靜子相位片段1〇3至10c可由環形分隔物平板（未展示）進 一步相互軸向分隔。 圖4展示包括兩個靜子芯體區段14及一線圈汕之一單相 靜子。圓4之該單相靜子1〇可用作為一單相電機之一靜子 及/或一多相電機之一靜子相位（例如圖3之該電機之該等靜 子相位10a至l〇c之一者）。該靜子包括兩個相同的靜子區 段14，各靜子區段係由經壓實的磁性粉末製成，其中各靜 子區段包括許多輪齒102。各靜子芯體區段係由磁性粉末 金屬製成且經單獨壓實以在_a|^具中成形。當該等靜 子思體區段具有相同的形狀時，纟等可在相同的工具中壓 製。然後在另一操作中接合該兩個靜子芯體區段，且與秤 向延伸之靜子芯體輪齒-起形成該靜子㈣，纟卜靜^ 芯體區段之輪齒相對於另—靜子芯體區段之輪齒軸向及圓 圖5展示體現為壓實為— 單體之一單一靜子芯體區段組 152806.doc 201141010 例如圖4之該靜子之該等靜子芯A coil 20 of 201141010, a flux bridge 18 providing an axial magnetic path between the stator core segments 14, 16 and a rotor 3A comprising a plurality of permanent magnets 22. In addition, the stator core section 14, the coil 2〇 and the rotor 3〇 surround a common geometric axis 1〇3′ and the plurality of gear teeth of the two stator core sections 14 are configured to Projecting toward the rotor 3 turns to form a closed toroidal flux path. The motor of Figure 1 is of the radial air gap flux outer rotor type because the stator teeth project radially toward one of the rotors in the case where the stator surrounds the rotor. However, it is also possible to incorporate the stator with respect to the rotor, which is also shown in some of the following figures. The stator described herein can be used in conjunction with different types of modulated pole motors, such as both axial and radial types and for motors with both internal and external stators relative to the rotor. Similarly, the stator described herein can be applied to single phase motors as well as multiphase motors. The stator core segments 14 are shown in the figures as laminated sheets, i.e., stacked sheets of soft magnetic material separated by a thin electrical insulator. Those skilled in the art are familiar with the general techniques of laminating a stator core. However, it will be appreciated that the stator core segments can be formed as a compacting assembly made of soft magnetic metal powder. In particular, the stator core segments can have a wire channel and an index projection as described herein. The active rotor structure 30 is constructed from an even number of segments 22, 24, while half of the segments (also referred to as pole segments 24) are made of a soft magnetic material and the other segments are made of a permanent magnet material 22. The latest method is to make these segments into individual components. The number of fragments can often be quite large, typically from about 1 to 50 individual monomers. The permanent magnets 22 are disposed such that the magnetization directions of the permanent magnets are substantially circumferential, that is, the north and south poles are respectively opposed in a substantially circumferential direction. Further, every other permanent magnet 22 counted along the circumference is arranged such that its magnetization direction is in the opposite direction to the other permanent magnets. The magnetic function of the soft magnetic pole elements 24 in the desired motor configuration is completely three dimensional and requires the soft magnetic pole unit 24 to efficiently carry magnetic flux with high magnetic permeability in all three spatial directions. The conventional design using one of the laminated steel sheets does not exhibit the required high magnetic permeability in a direction perpendicular to the plane of the steel sheets, and is advantageously used here to exhibit more than a new laminated steel sheet structure. A soft magnetic structure and material of a high magnetic flux isotropic. Figure 2 shows the same radially modulated pole motor as in Figure 1, but in a cross-sectional view of the assembled motor, showing this more clearly. How the stator teeth 102 extend toward the rotor and how the stator teeth of the two stator core segments 14 are rotationally offset relative to one another. The rotor 12 and the stator 1 are designed to concentrate the magnetic flux from the permanent magnets 22 such that the surface of the rotor 12 facing one of the stator teeth may be from the adjacent permanent magnet 22 The advantage of the total magnetic flux to the surface facing the teeth. This magnetic flux concentration can be regarded as a function of facing the regions of the permanent magnets 22 of the respective magnetic pole sections 24 divided by the area of the teeth. In particular, due to the circumferential misalignment of the teeth, one of the teeth facing a pole segment creates an active air gap that extends only across the axially extending portion of the pole segment. Nonetheless, the magnetic flux from the entire axial extent of the permanent magnets is directed axially and radially in the pole section toward the active air gap. These flux concentration properties of each pole segment 24 may use a weak low cost 152806.doc \λ 201141010 permanent magnet as the permanent magnet 22 in the rotor and may achieve very similar air gap flux density. This magnetic pole section made of a magnetic powder that causes an effective three-dimensional magnetic flux path may promote the concentration of the magnetic flux. In addition, the 誃 design may use these magnets more efficiently than in the corresponding motor type. Another advantage of this design is that the magnets experience the same reluctance that is unrelated to the problem of rotor position relief in the case of pulsating magnetic flux. An example of one of the stators disclosed herein will now be described in more detail with reference to Figures 3-7. Figure 3 shows an example of a three-phase stator containing three sets of stator assemblies, each pair holding a circumferential winding. The stator of Figure 3 includes three stator phase segments 10a to 1 〇c, each stator phase segment being similar to the stator of the figure, but configured for an outer rotor (i.e., having a radially outwardly convex wheel) Tooth ι〇2). As in the example of FIG. 1, each of the modulated pole motor stators of FIG. 3 includes a center coil 20a to 20c that magnetically feeds a plurality of gear teeth ι 2 formed by a soft magnetic core structure (eg, , a single winding), more specifically, each of the stator phases 1 〇 a to i 〇 c of the modulating pole motor 100 shown includes two stator core segments 14 (each stator core segment 14 includes a plurality of The teeth 102 are substantially annular and a coil 20 disposed between the first and second annular stator core segments. In addition, the stator core segments 14 of the stator phases and the coil 20 surround a common axis defined by a central axis 3〇3, and the plurality of teeth i 〇 of the stator core segments 丨4 The 2 series are configured to project radially outward. In the example of Fig. 3, a rotor (not explicitly shown) can be disposed coaxially with the stator and surround the stator to form an air gap between the stator and the teeth 102 of the rotor. The rotor can be provided as 152806.doc -15- 201141010 as described in connection with Figure 1 but having a semi-controlled alternating permanent magnet and pole unit that is sufficiently large to surround the rotor. It should be understood that the stator described herein can also be used in a single phase machine or in a multiphase machine having a phase number different from three. The stator core segments are mounted on a cylindrical sleeve 315 that projects axially through the central opening of the stator core segment. The stator core segments are arranged in pairs such that a coil is sandwiched between one of the stator phases and the stator core segment. The stator configuration is axially fixed, for example, by an annular cover plate (not explicitly shown) that is screwed to the central cylindrical sleeve 315. The isochronous phase segments 1〇3 to 10c may be further axially separated from each other by an annular spacer plate (not shown). Figure 4 shows a single phase stator comprising two stator core segments 14 and a coil. The single-phase stator 1 of the circle 4 can be used as one of a single-phase motor and/or a stator phase of a multi-phase motor (for example, one of the stator phases 10a to l〇c of the motor of FIG. 3). . The stator includes two identical stator segments 14, each of which is made of compacted magnetic powder, wherein each stator segment includes a plurality of teeth 102. Each stator core section is made of magnetic powder metal and is separately compacted to form in the _a® tool. When the stator segments have the same shape, the weirs can be pressed in the same tool. Then, in another operation, the two stator core segments are joined, and the stator (4) is formed with the stator core teeth extending from the scale, and the teeth of the core segment are opposite to the other stator. The tooth axis and the circle of the core section are shown as compacted as one of the single single stator core section groups 152806.doc 201141010. For example, the stator core of the stator of FIG.
靜子芯體區段之側部。 件14的一靜子芯體區段， 體區段的一者。各靜子芯 邊緣551所界定之一中心 物。該等輪6 L靜子中’該圓周凸緣434係配置在 535上’亦即面對該線圈2〇及另一 在圖3至圖7中所示之實施例中，該 等靜子芯體區段14係形成為相同的組件。特定言之，兩個 靜子芯體區段包括朝各自的另一靜子芯體區段凸出之一凸 緣434。在该已裝配之靜子中，該等凸緣434相互鄰接且形 成允許提供該等靜子芯體區段之間的一軸向磁通路徑之一 軸向磁通橋。在一外轉子電機之已裝配靜子中，該線圈因 此環繞凸緣434所形成之靜子芯體背部。 各線圈20具有用於提供電流至線圈之兩根連接導線 321。該等連接導線可在不同的圓周及/或徑向位置連接至 該線圈。在圖3至圖7中所示之實例中’各線圏係形成為一 單一繞組，其中一根連接導線（圖7中指定為321a)係在該繞 組之徑向向内邊緣處連接至該線圈’而另一根連接導線 (圖7中指定為3 21 b)係在該繞組之程向向外邊緣處連接至該 線圈。該等連接導線321在一圓周方向上相互鄰接，因此 允許3亥線圈之最大的完整阻數。朝遠離該轉子之該靜子的 152806.doc 17 201141010 部分徑向料該等連接導線，亦即朝圖3至圖7中所示之該 外轉子設計之實例中的該靜子的徑向内邊緣 '然後在沿著 該等靜子芯體區段之該徑向内邊緣551的_軸向上引導該 等連接導線32卜在圖3之該三相靜子中，將全部靜子相位 之連接導線引導至該等靜子之内邊緣與該套管3 15之間的 該靜子之一軸向終端。為此目的，該套管315在其外表面 上具有用於容納該等連接導線321之—凹槽325。因此，該 等連接導線321可方便地連接至該電機之一控制及/或電源 電路（未展不）。可在該靜子之一軸向側上的一連接區域中 執行至該等導線321之連接。 在沿著該線圈20之一徑向上引導該等連接導線32丨之至 少一者。在圖3至圖7之該外轉子靜子設計之實例中，如圖 7中之導線321b所繪示，自該線圈20之徑向外邊緣徑向向 内引導一根連接導線。自該徑向内邊緣徑向向内引導另一 根連接導線（圖7中指定為321a)，因此僅利用該另一靜子芯 體區段之導線通道的一部分。徑向引導兩根連接導線321 a 至32lb穿過該等凸緣434所形成之靜子芯體背部。如圖6中 所示’面對該線圈之該凸緣434中之凹槽的邊緣654可具有 避免可能使該等導線遭到破壞之任意形狀邊緣的一足夠大 的半徑之"曲率。 為此目的’各靜子芯體區段具有形成沿著各靜子芯體區 段之内側535(亦即，在該凸緣434自其延伸之該靜子芯體 區段的側部上）徑向延伸之一導線通道43 1的一伸長凹槽。 圖6展示該靜子芯體區段14之徑向導線通道431及一對應的 152806.doc -J8 * 201141010 指標特徵部432的一詳細視圖。 該凹槽43 1自該靜子芯體區段之内邊緣55〖延伸至該等輪 齒102自其徑向向外延伸之該環形盤狀物的外邊緣。應瞭 解的是，若該線圈在徑向上比該環形盤狀物更薄（亦即， 僅自該凸緣向外延伸而未達該環形盤狀物之外邊緣），則 該導線通道可能僅需沿著該靜子芯體區段之徑向厚度的一 部分延伸。 圖3至圖7中之該導線通道431係展示為一筆直的徑向導 向之導線通道。雖然此提供最簡單的設計，但是應瞭解的 是’可使用該通道的其他佈局’只要其提供一徑向通路至 5亥靜子芯體區段之内邊緣。類似地，應進一步瞭解的是， 該導線通道可能無需一直延伸至該靜子芯體區段之内邊 緣’但是可替代地終止於該内邊緣之一切口中或甚至終止 於穿過該靜子芯體區段軸向延伸之該導線通道之内部終端 處的一孔中。然而，當該導線通道一直延伸至該内邊緣 時’會達成一特別簡單的總成及佈線佈局（尤其對於多相 電機）。如在圖3至圖7之實例中，該導線通道43丨可具有任 何適當的截面’例如一矩形截面、一 u形截面或一梯形截 面。如在圖3至圖7之實例中，可在兩個輪齒之間沿圓周定 位忒導線通道43 1 ’因此減小對磁通之任何非期望的影 響。 s亥靜子芯體區段14進一步具有位於其外側上的一徑向隆 脊433 ’該外側與其上提供該凸緣434及該導線通道43丨之 該内側535相對。該隆脊433與該導線通道43 1圓周對齊， 152806.doc -19- 201141010 亦即直接相對該導線通道提供隸脊1此，雖然提供該 導線通道，但是該靜子區段之軸向厚度沿著圓周大致上怪 定，因此減少經壓實組件之壓實比率的任何變異。 當兩個靜子芯體區段皆具有一導線通道時，在已裝配之 靜子中的該線圈20之各侧上提供一導線通道。因此，當沿 著該線圈之各自軸向側上的線圈徑向引導該等連接導線321 時，可將各連接導線置於該等導線通道之一者的内部。 各靜子芯體區段14進一步具有朝另一靜子於體區段自該 靜子芯體區段14之内侧535軸向凸出之一指標凸出物432。 將該指標凸出物432提供為該凸緣434之一部分，亦即在軸 向上比該凸緣之剩餘部分更加凸出。選擇該指標凸出物 432之軸向尺寸及形狀，使得該指標凸出物能塞入該已裝 配靜子中之各自的另一靜子芯體區段之該導線通道431， 但是使得該指標凸出物僅延伸到該另一靜子芯體區段之該 導線通道之深度的一部分中，因此仍然留出該指標凸出物 與該導線通道之底部之間的一連接導線321之一通路。一 般而言，該導線通道之深度及該指標凸出物之高度係配合 該等連接導線之厚度。 選定該指標凸出物432相對於該導線通道43 1之圓周位 置，使得該指標凸出物在該等靜子芯體區段相互裝配時能 塞入s亥另一靜子芯體區段之該導線通道，從而相對於該另 一靜子芯體區段按期望圓周定位該等靜子輪齒1〇2。 可將該指標凸出物432定位於接近該導線通道處，例如 直接鄰近該導線通道（如圖3至圖7中所示），因此促進容易 152806.doc •20- 201141010 地裝配包括整數個完整阻之一線圈。然而，應瞭解的是， 可將該& t凸出物及該導線通道置於任意圓周位置，只要 該等靜子芯體區段之間的相對於該等輪齒之間的節距所定 義之磁極節距的圓周位置差係該節距之v”當期望允許部 分繞组觅(例如，在其中導線厚度較大且阻數較少之低壓 應用中）時’此可為有用。 類似地，該指標凸出物可經定位以自該凸緣徑向錯位， 亦即該指標凸出物可自該環形盤狀物凸出。然巾，因為該 導線通道之相對深度在該凸出物之區域中較大，故可提供 -較高的指標凸出物’同時仍然允許該連接導線之一通 路。此允許該指標凸出物與該導線通道之—更精確且牢固 的配合。 精由提供該指標凸出物以便接合該導線通道，以該等靜 子芯體區段中之少#的複雜特徵部促進該等靜子芯體區段 之一圓周對齊及高效的裝配。The side of the stator core section. A stator core section of the piece 14, one of the body sections. Each of the stator core edges 551 defines a center. In the wheel 6 L stator, 'the circumferential flange 434 is disposed on 535', that is, facing the coil 2〇 and the other embodiment shown in FIGS. 3 to 7, the stator core region Segment 14 is formed as the same component. In particular, the two stator core segments include a convex edge 434 that projects toward the respective other stator core segment. In the assembled stator, the flanges 434 abut one another and form an axial flux bridge that allows for providing an axial flux path between the stator core segments. In the assembled stator of an outer rotor motor, the coil thus surrounds the back of the stator core formed by the flange 434. Each coil 20 has two connecting wires 321 for supplying current to the coil. The connecting wires can be connected to the coil at different circumferential and/or radial positions. In the example shown in Figures 3 to 7, 'each wire is formed as a single winding, one of which is connected to the coil at the radially inward edge of the winding (designated 321a in Figure 7). 'Another connecting wire (designated 3 21 b in Figure 7) is connected to the coil at the outer edge of the winding. The connecting wires 321 are adjacent to each other in the circumferential direction, thereby allowing the maximum complete resistance of the 3 kel coil. The connecting wires are radially directed toward the stator 152806.doc 17 201141010 remote from the rotor, that is, toward the radially inner edge of the stator in the example of the outer rotor design shown in Figures 3-7. Then guiding the connecting wires 32 along the axial direction of the radially inner edge 551 of the isostatic core segment, in the three-phase stator of FIG. 3, guiding all the stator phase connecting wires to the same One of the stators between the inner edge of the stator and the sleeve 3 15 is axially terminated. For this purpose, the sleeve 315 has a recess 325 on its outer surface for receiving the connecting wires 321 . Therefore, the connecting wires 321 can be conveniently connected to one of the control and/or power circuits of the motor (not shown). The connection to the wires 321 can be performed in a connection region on one of the axial sides of the stator. At least one of the connecting wires 32 is guided radially along one of the coils 20. In the example of the outer rotor stator design of Figures 3 through 7, a connecting conductor is guided radially inward from the radially outer edge of the coil 20 as depicted by conductor 321b in Figure 7. Another connecting wire (designated 321a in Figure 7) is directed radially inward from the radially inner edge, thus utilizing only a portion of the wire path of the other stator core segment. The two connecting wires 321a to 321b are radially guided through the back of the stator core formed by the flanges 434. The edge 654 of the recess in the flange 434 facing the coil as shown in Figure 6 may have a "curvature of a sufficiently large radius to avoid any shape edges that may damage the wires. For this purpose 'each stator core section has a radial extension extending along the inner side 535 of each stator core section (i.e., on the side of the stator core section from which the flange 434 extends) An elongated groove of one of the wire passages 43 1 . Figure 6 shows a detailed view of the radial wire passage 431 of the stator core section 14 and a corresponding 152806.doc - J8 * 201141010 indicator feature 432. The recess 43 1 extends from the inner edge 55 of the stator core section to the outer edge of the annular disc from which the teeth 102 extend radially outward. It will be appreciated that if the coil is radially thinner than the annular disc (i.e., extends only outward from the flange without reaching the outer edge of the annular disc), the wire passage may only It is required to extend along a portion of the radial thickness of the stator core section. The wire passage 431 of Figures 3 through 7 is shown as a straight radial guide wire passage. While this provides the simplest design, it should be understood that 'other layouts that can use this channel' are provided as long as they provide a radial path to the inner edge of the 5th hollow core segment. Similarly, it will be further appreciated that the wire channel may not need to extend all the way to the inner edge of the stator core section 'but alternatively terminate in one of the inner edge cuts or even terminate through the stator core region The segment extends axially into a hole in the inner end of the wire channel. However, a particularly simple assembly and wiring layout (especially for multiphase motors) is achieved when the wire path extends all the way to the inner edge. As in the examples of Figures 3 through 7, the wire channel 43A can have any suitable cross-section, such as a rectangular cross-section, a u-shaped cross-section, or a trapezoidal cross-section. As in the examples of Figures 3 through 7, the 忒 wire channel 43 1 ' can be positioned circumferentially between the two teeth thereby reducing any undesired effects on the magnetic flux. The sill stator core section 14 further has a radial ridge 433' on its outer side opposite the inner side 535 on which the flange 434 and the wire passage 43 are provided. The ridge 433 is circumferentially aligned with the wire passage 43 1 , and 152806.doc -19- 201141010 directly provides a ridge 1 to the wire passage. Although the wire passage is provided, the axial thickness of the stator segment is along The circumference is generally odd, thus reducing any variation in the compaction ratio of the compacted component. When both stator core segments have a wire passage, a wire passage is provided on each side of the coil 20 in the assembled stator. Therefore, when the connecting wires 321 are radially guided along the coils on the respective axial sides of the coil, the connecting wires can be placed inside one of the wire channels. Each stator core section 14 further has an index projection 432 that projects axially from the inner side 535 of the stator core section 14 toward the other stator section. The index projection 432 is provided as part of the flange 434, i.e., more axially convex than the remainder of the flange. The axial dimension and shape of the index protrusion 432 are selected such that the index protrusion can be inserted into the wire channel 431 of the respective other stator core segment of the assembled stator, but the index is convex The object extends only into a portion of the depth of the wire channel of the other stator core segment, thereby leaving a path for a connecting wire 321 between the index projection and the bottom of the wire channel. In general, the depth of the wire passage and the height of the index projection match the thickness of the connecting wires. The circumferential position of the index protrusion 432 relative to the wire channel 43 1 is selected such that the index protrusion can be inserted into the wire of the other stator core segment when the stator core segments are assembled with each other The passage, thereby positioning the stator teeth 1 〇 2 in a desired circumference relative to the other stator core section. The index protrusion 432 can be positioned proximate to the wire channel, such as directly adjacent to the wire channel (as shown in Figures 3-7), thus facilitating the assembly of 152806.doc • 20-201141010 including integers complete Block one coil. However, it should be understood that the & t protrusion and the wire channel can be placed at any circumferential position as long as the pitch between the stator segments is defined relative to the pitch between the teeth The circumferential position difference of the pole pitch is the "v" of the pitch. This may be useful when it is desired to allow partial winding turns (e.g., in low voltage applications where the wire thickness is large and the number of resistances is low). The index protrusion may be positioned to be radially offset from the flange, that is, the index protrusion may protrude from the annular disk. However, because the relative depth of the wire channel is at the protrusion The larger of the area provides a higher index bulge' while still allowing one of the connecting wires to pass. This allows for a more precise and robust fit of the index bulge with the wire channel. The index projections are provided to engage the wire passages, with the complex features of the lesser core segments promoting circumferential alignment and efficient assembly of the one of the stator core segments.
一般而言’本文中所述之該等靜子結構可由-磁性粉末 製成。該磁性粉末可（例如）為—軟磁性鐵粉末或含有c〇或 Ni或含有Co或Ni之部分的合金之粉末。該軟磁性粉末可為 一大致上純淨的水霧化鐵粉末或具有已塗佈-電絕緣物之 不規則形狀顆粒的一海綿鐵粉末。在此背景下，術語「大 致純淨」意指該粉末應大致上不具有内含物且雜質。〇、C 及N的數量應保持為最小 米且大於10微米。 平均的顆粒大小—般小於300微 然而’可使用任何軟磁性金屬粉末或金層合金粉末，只 152806.doc •21 · 201141010 要軟磁屬性係充足且該粉末適用於模具壓實。 該等粉末顆粒之電絕緣物可由一無機材料製成。揭示於 US 6348265(其藉此以引用方式併入）中之絕緣物類型尤其 適用，US 6348265涉及由具有一絕緣的含氧及含磷阻障^ 基本上純㈣縣叙-基材粉末㈣粒。具有也緣顆粒 之粉末可使用購自瑞典的H6ganas AB之s〇mal〇y@5〇〇、In general, the so-called stator structures described herein can be made of -magnetic powder. The magnetic powder may, for example, be a soft magnetic iron powder or a powder containing an alloy of c〇 or Ni or a portion containing Co or Ni. The soft magnetic powder may be a substantially pure water atomized iron powder or a sponge iron powder having irregularly shaped particles of coated-electric insulation. In this context, the term "substantially pure" means that the powder should be substantially free of inclusions and impurities. The number of 〇, C and N should be kept to a minimum of more than 10 microns. The average particle size is generally less than 300 micrometers. However, any soft magnetic metal powder or gold alloy powder can be used, only 152806.doc •21 · 201141010 The soft magnetic properties are sufficient and the powder is suitable for mold compaction. The electrical insulation of the powder particles can be made of an inorganic material. The type of insulation disclosed in US Pat. No. 6,348, 265, which is hereby incorporated by reference, is hereby incorporated by reference in its entirety, U.S. Patent No. 6,348,265, which is incorporated herein by reference. . Powders with rim particles can be obtained from s〇mal〇y@5〇〇 from H6ganas AB, Sweden.
Somaloy®550或 Somaloy®700。 雖然已詳細描述且展示一些實施例’但是本發明並不限 於此，而是亦可以下列申請專利範圍中所定義的標的之範 嘴内的其他方式予以體現。特定言之，應瞭解的是，在不 脫離本發明之料下，可利用其他實施似可進行結構及 功能修改。例如’雖然已主要關於—外轉子電機描述本發 明’但是應瞭解的是，本發明可同樣應用於一内轉子電 機。在此-實施例巾’大體上互換對徑向(内與外及向内 與向外）之引述。 本文中所揭示之本發明的實施例可用於一電動自行車S 其他電力驅動的車輛（尤其是—輕量車輛）之—直接輪驅重 電動機。此等應用可要求高扭矩、相對低速及低成本。^ 时量永久㈣及導線圈之具有呈—何形狀之相 對尚的極數目之一電動機可滿足此蓉 疋此寺要求以藉由增強型賴 子裝配程序適應且滿足成本要求。 在列舉若干構件之裝置請求項中， ^ Ψ數個此等構件可由同 一個硬體項目體現。某些措施敎 双现隹相互不同的從屬請求 項中，但僅就此事實，並不砉+ 不表不不能利用此等措施之組合 152806.doc -22- 201141010 以更具有優越性。 應強調的是，當用於此說明書中時，術語「包括」係用 於指明所陳述之特徵、整數、步驟或組件之存在，但是並 不排除-或多個其他特徵、整數、步驟、組件或其等之群 組的存在或增設。 【圖式簡單說明】 圖1展示一橫向磁通電機之一實例的一示意分解透視 圖； 圆2展示圖1之該已裝配電機的一截面圓； 圖3展示一三相靜子，其含有三組靜子組件對，各對固 持-圓周繞組。特定言之，圖3a展示該三相靜子之一示意 透視圖，㈣3b展示該三相靜子之—示意分解透視圖;’、 圖4展示包括兩個靜子芯體半體及一繞組的一單相靜子 配置； 單—紐件的一靜子芯 圖5展示體現為壓實為一單體之一 體區段； 徑向導線通道及指標特徵 圖6展示一靜子芯體區段之一 部之一詳細視圖；及 圖7展示在裝配兩個靜子芯體區段時形成之導線通道的 詳細視圖。 【主要元件符號說明】 10 調變的磁極電機靜子 1〇a 調變的磁極電機靜子 l〇b 調變的磁極電機靜子 I52806.doc -23- 201141010 10c 12 14 18 20 22 24 30 100 102 103 303 315 321 321a 321b 325 431 432 433 434 535 551 654 調變的磁極電機靜子 轉子 靜子芯體區段 磁通橋 中心線圈 永久磁鐵 片段/磁極區段 轉子 調變的磁極電機 靜子輪齒 幾何軸線 中心轴線 圓筒形套管 連接導線 連接導線 連接導線 凹槽 導線通道 指標特徵部 徑向隆脊 凸緣 内側 内邊緣 邊緣 152806.doc -24-Somaloy® 550 or Somaloy® 700. Although some embodiments have been described and illustrated in detail, the present invention is not limited thereto, but may be embodied in other forms within the scope of the invention as defined in the following claims. In particular, it will be appreciated that other configurations may be utilized to modify the structure and function without departing from the invention. For example, although the present invention has been described primarily with respect to the outer rotor motor, it should be understood that the present invention is equally applicable to an inner rotor motor. Herein, the embodiment's are generally interchanged with reference to radial (inner and outer and inward and outward). Embodiments of the invention disclosed herein may be used in an electric bicycle S other electrically powered vehicle (especially a lightweight vehicle) - a direct wheel drive heavy motor. These applications can require high torque, relatively low speed and low cost. ^ The amount of time (4) and the number of poles of the guide coil having the same shape as the shape of the motor can satisfy the requirements of this temple to be adapted by the enhanced type assembly procedure and meet the cost requirement. In the device request item enumerating several components, ^ a number of these components can be represented by the same hardware project. Some measures are different from each other in the subordinate request, but only in this fact, it is not ambiguous + not to be able to take advantage of the combination of these measures 152806.doc -22- 201141010 to be more advantageous. It should be emphasized that the term "comprising", when used in this specification, is used to indicate the existence of the recited features, integers, steps or components, but does not exclude - or many other features, integers, steps, components The presence or addition of a group or group thereof. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 shows a schematic exploded perspective view of one example of a transverse flux machine; circle 2 shows a section circle of the assembled motor of Figure 1; Figure 3 shows a three-phase stator containing three Pair of stator subassemblies, each pair of holding-circumferential windings. In particular, Figure 3a shows a schematic perspective view of the three-phase stator, (4) 3b shows a schematic exploded perspective view of the three-phase stator; ', Figure 4 shows a single phase comprising two stator core halves and one winding Static stator configuration; a static core of a single-piece member Figure 5 shows a compaction of a single body segment; radial wire channel and index features Figure 6 shows a detailed view of one of the stator core segments And Figure 7 shows a detailed view of the wire path formed when the two stator core segments are assembled. [Main component symbol description] 10 Modulated pole motor stator 1〇a Modulated pole motor stator l〇b Modulated pole motor stator I52806.doc -23- 201141010 10c 12 14 18 20 22 24 30 100 102 103 303 315 321 321a 321b 325 431 432 433 434 535 551 654 Modulated pole motor stator rotor rotor stator core section flux bridge center coil permanent magnet segment / pole section rotor modulated pole motor stator wheel tooth geometry axis central axis Cylindrical Casing Connection Wire Connection Wire Connection Wire Groove Wire Channel Index Feature Radial Ridge Flange Inner Inner Edge Edge 152806.doc -24-