TW201108569A - Electric motor and method for assembling of an electric motor - Google Patents

Electric motor and method for assembling of an electric motor Download PDF

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Publication number
TW201108569A
TW201108569A TW099117543A TW99117543A TW201108569A TW 201108569 A TW201108569 A TW 201108569A TW 099117543 A TW099117543 A TW 099117543A TW 99117543 A TW99117543 A TW 99117543A TW 201108569 A TW201108569 A TW 201108569A
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Taiwan
Prior art keywords
bearing
stator
spacer
bridge
rotor
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TW099117543A
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Chinese (zh)
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TWI492494B (en
Inventor
Uwe Caldewey
Mathias Varnhorst
Thomas Braun
Volker Theuermann
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Vorwerk Co Interholding
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Publication of TW201108569A publication Critical patent/TW201108569A/en
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Publication of TWI492494B publication Critical patent/TWI492494B/en

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/173Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
    • H02K5/1732Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at both ends of the rotor

Abstract

The invention relates to an electrical motor (1), particularly a reluctance motor, having a rotor (3) and a stator (5), wherein the stator (5) is received in a motor housing (9) composed of two housing members, wherein each housing member (10, 11) furthermore forms at once a bearing bridge (12), a roller or plain bearing (16) for mounting the rotor shaft (2) of the rotor (3) being contained in the bearing bridge, wherein further an isolation body (8) is provided to overlap the stator (5), which isolation body takes up the stator windings (7). In order to improve such electrical motor, it is proposed, that the bearing (16) is glued with the bearing bridge (12) and/or that the bearing bridge (12) is glued with the associated isolation body (8) using a distance member (20). A further invention relates to a method for assembling such electrical motor, wherein first the stator (5) is assembled with the isolation body (8), which body does cover the stator poles (6), and wherein thereafter the stator windings (7) are made. In order to improve such method, it is proposed, that after the bearing bridges (12) are applied, an adjustment of the rotor (3) relatively to the stator (5) is made using a glue alignment of the bearings (16) sitting on at the rotor shaft (2) relatively to the bearing bridges (12), preferential with simultaneous fixing of the bearing bridges (12) with the isolation body (8) using the distance member (20).

Description

201108569 六、發明說明: 【發明所屬之技術領域】 本發明係有關一種電動馬達,尤其是磁阻馬達,其包括一 轉子及一定子,定子被設置在一由兩殼體部所構成的馬達殼 體中,該殼體部各構成一軸承橋,軸承橋中各設置一支撐轉 子之轉子軸的滾動或滑動軸承,定子由一絕緣體覆蓋,該絕 緣體設置有定子繞組。 【先前技術】 上述電動馬達為習知。此處之轉子需儘量同軸對正定子。 不同之干擾會在轉子系統中產生振盪。為此通常使用一低臨 界尺寸,軸向上的固有頻率明顯高於旋轉頻率。為保持系統 之固有頻率,需要一適當的剛性。具内轉子之電動馬達的軸 承設在軸承橋上,該轴承橋固定在定子的軸向外側。此種系 統需要較大的壁厚及進行特殊的手段,例如捲邊。轉子軸的 支樓利用軸承,例如滾珠軸承。定子之中心位置通常由軸承 座界定。未被進一步加工之組件的公差對同軸性有不利之影 響。 定子極由一塑膠絕緣體所覆蓋的電動馬達亦為習知,定子 繞組設在該絕緣體上。 【發明内容】 本發明之目的在於提供一種上述之電動馬達,其在振盪技 術上之設計較為有利。 099117543 5 201108569 本目的由令請專利範圍第〗項之標的物達成,其使軸承與 軸承橋黏合連接’及/或使m橋經—間隔件而與絕緣體黏 合連接。因此可在組裝技術上有利地使轉子同軸對正定子。 軸κ在軸承橋上的固定係利用黏合連接,其較佳地使用填補 縫隙之黏合劑。設置軸承之軸承橋只使軸承預先定位,利用 黏合劑塗層對正軸承而進行微調,黏合劑硬化後使得轉子軸 同軸對正定子。可組合或取代之設計係使軸承橋經由一間隔 件而與絕緣體黏合連接,該設計亦具獨特意義,亦即不需迫 使軸承與麻橋黏合4處之黏合亦難地使用填補縫隙之 黏合劑’故可藉黏合劑塗層中之間隔件之對正而在黏合劑硬 化後達到精準對正。在另—較佳實施财,歸與軸承橋之 黏^連接’及/或軸承橋經由一間隔件而與絕緣體之黏合連 接白在兩轴承橋處進行。使用—裝置將轉子定位在定 廊的中心。為維持每—組裝步驟之自由度,需留 : :縫隙’尤其是轴承橋與間隔件以及轴承與 ;: 隙,而使得組裝時不產生碰撞。藉由使用間隔件於每= 承橋係可大為提高系統的自體共振,轴承橋之壁厚^= 設f轴承之部分)可較小,尤其是在十分之幾毫米至2 = 的範圍内。相較於習知軸 〜、 件之公差可由黏合連接補償。 合、且 099117543 =他特社要依據申料利範圍第丨項之標的 °月專利摩巳圍之特徵。其亦可只依據申請專利範圍第^項或 201108569 其他申請專利範圍之單項特徵或為獨立。 在另一較佳實施例中,軸承橋構成一設置軸承之凹槽。該 凹才曰之直仏及南度係考置填補黏合劑之環形縫隙而配合所 •設置之轴承。軸承橋較佳由金屬彎曲成形件所製成,凹槽與 軸承橋為一體成型。 . _件較佳地配合軸承橋凹•亦設作凹槽狀,其中心具 有:使轉伟通義穿孔,間隔件凹_徑配合轴承橋凹槽 卜仅以‘纟峰承橋凹槽’此處同樣需考量填獅合劑之環 Φ縫隙間件中心牙孔對準軸承橋凹槽使轉子轴通過的穿 孔,該等穿孔較佳地具有相同之直徑。 在另-較佳實施例中,間隔件是—塑膠件,尤其是一硬塑 膠件,而以轉射出成縣製成。故間隔件與定子絕緣體係 由相同之塑膠構成,而可與其黏合連接。 間隔件及/或軸承經由—在_上變化的徑向黏合縫隙而 與軸承橋及絕緣體連接。此處之黏合縫隙的平均徑向寬度為 十分之數宅米,尤其是3_20/10mm。該縫隙使得軸承在軸承 座中及/或間隔件相對於絕緣體或軸承橋而具有足夠的活動 性,該活動性可被利用於黏合缝隙之填補黏合劑,而使轉子 精準對正定子,以在黏合劑硬化後定位於該位置。故黏合劑 硬化狀態時,黏合縫隙由於上述對正而具一在圓周上變化的 徑向寬度。理想情形下,亦即組件無公差時,黏合縫隙在圓 周上具一均勻的徑向寬度。 099117543 7 201108569 間隔件經由軸承橋凹槽壁而軸向包覆軸承,在一較佳實施 例中以轴向高度來看,至少部分包覆設置轴承之轴承橋凹 槽,該軸承橋凹槽之底部較佳地完全貼覆與之平行之間隔件 之底部..。 為有利地預先定位組件,尤其是使間隔件預先定位於欲黏 . 合連接之絕緣體,間隔件外側可設有圖案,亦即設有徑向凸 — 部及凹部。故本發明標的物之另一實施例中,間隔件外側設 有滾邊,其例如由徑向或軸向凸肋構成。 間隔件可構成一填補環’以填滿軸承橋凹槽與定子絕緣體 之間的距離。可提高系統自體共振之間隔件填滿該環形空 間”並使軸承橋凹槽與定子絕緣體黏合連接。 本發明尚有關一種電動馬達(尤其是磁阻馬達)之組裝方 法,其包括-轉子及-定子,定子被設置在一由兩殼體部所 構成的馬達殼體中’該殼體部各構成一軸承橋,轴承橋中各 設置一支撐轉子之轉子軸的滚動或滑動軸承,定子由一絕緣 體覆蓋’該絕緣體設置有定子繞組,首先使定子與覆蓋定子 極的絕緣體組裝在一起,然後安裝定子繞組。 上述方法為習知。定子繞組絲於覆蓋定子極的絕緣體 後,使轉子與轉伟穿過定子,然後馬達殼體及其所構* 成的軸承橋對正轉子軸’支撐轉子軸的滾動或滑動轴承則被· 插入軸承橋的相應設置部中。 本發明之目的在於提供-種上述之方法,尤其是簡單使轉 099117543 〇 201108569 子軸同軸對正久子,以進一步改良振盈技術有利之設計。 本目的由申請專利範圍第1〇項之標的物達成,安裝袖承 子對正—用^子轴上之轴承相對於轴承橋的黏合調整而使轉 . 歸 尤其疋同時使軸承橋經由一間隔件而定位於絕 •、彖妝β方法可滴單地將轉子軸同軸對正於定子。即使各組 件具有較大的公差’亦可在㈣技術上被有利地補償。轉子 軸之軸承被黏合劑固定在殼體轴承橋十,塗佈於黏合面之黏 f劑可使轉子轴同轴對正於定子,並在黏合劑硬化後固定於 ^ 位置故每—軸承在軸承橋設置部中皆構成一縫隙。 在車又仏實知例中,轴承被一環形縫隙圍繞,該環形縫隙塗 布逢隙的黏合劑填滿。故組裝時可在軸承橋設置部中傾斜轴 、使‘子轴同軸對正於^子。在—有利設計中設有間隔 位在轴承橋(尤其是軸承設置部)與絕緣體之間 。該間 牛同该m橋及絕緣體黏合連接。此處可進—步微調轉 子輛之對正。黏合劑硬化後固定在該對正位置。此外,使用 件並可提同至系統的自體共振。利用黏合調整,尤其是 表相對於軸承橋,以及軸承橋經由間隔件而對絕緣體之定 . 位可有利及簡單地對正轉子轴及組裝電動馬達。 1他特徵主要依據申請專韻圍第1G項之標的物或其他 申請專利㈣之特徵。其亦可只依據申請專利範圍第1〇項 或其他申請專利範圍之單項特徵或為獨立。 另—較佳實施例中,將軸承橋安裝到定子上之前,在轴令 099117543 201108569 橋上塗佈黏合劑而預先定位間隔件,故可在進 尤其是對正轉子軸時,微調間隔件。黏合劍步組農時, 被固定於該位置。軸承橋與預先定位於其上心時該間隔件 到定子上’間隔件與絕緣體欲連接數個壁之=:网件被安裝 塗佈黏合劑,以填滿間隔件與絕緣體 或兩點合面被 正。 縫隙’並定位姆 另一實施例中,將軸承橋安裝到定子上之前、 間隔件預先定位於絕緣體。此實施例中預先j定彳从黏合劑將 合,而可在對正轉子似/或軸承橋時移動^位亦使用勒 緣體朝向軸承橋的面被塗佈黏合劑,阳件。此處絕 互相作用的面。 承橋與間隔件 將轉子軸插入由絕緣體覆蓋的定子中,然 另 其間之間隔件,再將軸承套接於轉子軸上。此=放軸承橋與 轉子軸之固定亦可使用黏合'然後將與轉子輛:::承内環尉 承放入轴承橋凹槽找置部中,而在滚珠轴承外的轴 内壁之間產生-環形缝隙’該縫隙被填補黏合劑, ㈣正時被改變,直到轉子轴同㈣正定子為止。進行本方 法呀並可在軸承橋設置部中略微傾斜轴承,以達到精準的轉 子軸對正填補縫隙的黏合劑在硬化之後固定轉子軸之對 正0 以下將依據附圖詳細說明本發日㈣〇 【實施方式】 099117543 201108569 圖1顯示一電動馬達1,其為一 4/2磁阻馬達。該二相馬 達設有一固定在轉子軸2上的轉子3。該轉子具有兩個在直 徑上相對的轉子極4。電動馬達1運轉時,轉子3相對一穿 過轉子轴2的幾何轉轴X旋轉。 ’包圍轉子3的定子5具有四個位在轉子3之圓周方向上彼 此互為90°角的定子極6,其承載構成線圈之定子繞組7。 為使繞組7對定子5電性絕緣,定子極6及定子極6之間 圓周方向上的定子壁皆由一塑膠射出成形件所構成的絕緣 體8覆蓋。如圖4所示,該絕緣體的剖面為盆狀,以覆蓋定 子鄰接繞組7之部分。 定子5被設置在包覆定子的馬達殼體9中。該馬達殼體由 兩個至少部分為槽形的包覆殼體部10、11構成,其在組裝 位置時彼此連接。 每一殼體部10、11皆構成一垂直於轉軸X的軸承橋12, 其在中心處構成一由轉子軸2穿過的凹槽13,該凹槽底部 14基本上為水平,亦即垂直於轉軸X,凹槽底部14係軸向 向内朝向定子5。圍繞凹槽底部14的凹槽壁15垂直於凹槽 13之底部平面。凹槽壁15不朝向凹槽底部14的端部而連 接軸承橋12徑向向外延伸的橋部。 每一凹槽13設置一軸承16,尤其是一滾動軸承或滑動軸 承。圖中所示為滚珠軸承。 凹槽13之内徑略大於軸承16外徑,故軸承16可在凹槽 r 099117543 11 201108569 13内垂直於轉軸χ移動每俩奴 及傾斜。此處凹槽之内徑使得幸 16周圍缝隙約為〇.2-lmm,尤甘β… Κ 凡其疋約為〇.3mm。 凹槽之轴向高度配合轴承16相同方向之厚度,故耗承可 被完全設置在凹槽13中。 在所不貫施例中,每一卓由7¾ 1 κ 釉承16之内環17皆套設在轉子軸 2上。 外環18與凹槽壁15之間的m 、衣形缝隙填補一黏合劑19, 其被塗佈於凹槽壁15之内彻丨十从 内側或外每18之外側。該黏合 19亦可被注入環形縫隙中。 黏合劑19可在硬化之前預先 貝无疋位轴承橋凹槽13中的軸承 16° 在所示實施例中,凹槽 15的材料厚度與軸承橋12 屬板彎曲成形的殼體部1〇 具相當薄的壁。 13(尤其是凹槽底部14)與凹槽壁 之橋部的材料厚度相同,並與金 、11的材料厚度相同,故凹槽13 —同樣為槽形的間隔件2G包覆,該間 20使得軸承橋凹槽13與定子絕緣體8連接。 ^ m_2G為—_射出成形件,其較佳由與 8相同之塑膠材料製成。 、么、、彖 間隔件2〇設在凹槽13之轴向内側,為橋接凹槽13的外 壁與絕緣體8的_之_#向H13的外 』跑蠘5又有一填補環21,並 ” μ套接部22,其連接間隔件底部23。套接部22 099117543 12 201108569 於間隔件20之底部平面。 間隔件套接部22的内徑大於凹槽壁15的外徑’並使設置 凹槽13時,凹槽壁15與套接部22間的環形缝隙之徑向寬 度為0.2-lmm ’尤其是〇_3-0.5mm。該黏合缝隙24與軸承 16及凹槽壁15之間的黏合縫隙一樣被填補黏合劑19,其可 塗佈在套接部22的内側及/或凹槽壁15的外侧上。 套接部22的外側與絕緣體8的内側產生另一黏合缝隙 24,其亦由黏合劑19填補。利用套接部22外侧的滚邊26 圖案可有利地使間隔件20預先定位。 此種配置使得軸承橋12之凹槽13可經由間隔件2〇而與 …邑緣體8黏合連接,該黏合連接可在硬化之前預先定位組 各黏合縫隙24中所填充的黏合劑19可在硬化之前使轉軸 精準地同軸對JL定子5,而精準對正定子5中的轉子軸2 及轉子軸2上的轉子3 +轉,軸之轉子單元可㈣定在轉子軸2上黏合在凹槽13201108569 VI. Description of the Invention: [Technical Field] The present invention relates to an electric motor, in particular a reluctance motor, comprising a rotor and a stator, the stator being arranged in a motor casing composed of two casing parts In the body, the housing portions each form a bearing bridge, and each of the bearing bridges is provided with a rolling or sliding bearing supporting a rotor shaft of the rotor. The stator is covered by an insulator, and the insulator is provided with stator windings. [Prior Art] The above electric motor is conventional. The rotor here needs to be coaxially aligned with the stator. Different disturbances can oscillate in the rotor system. A low critical dimension is usually used for this purpose, and the natural frequency in the axial direction is significantly higher than the rotational frequency. In order to maintain the natural frequency of the system, a proper rigidity is required. The shaft of the electric motor with the inner rotor is mounted on a bearing bridge which is fixed to the axially outer side of the stator. Such systems require large wall thicknesses and special means such as crimping. The bearings of the rotor shaft utilize bearings, such as ball bearings. The center position of the stator is usually defined by the bearing housing. The tolerances of components that are not further processed have an adverse effect on the coaxiality. It is also known to have an electric motor in which the stator pole is covered by a plastic insulator, and the stator winding is provided on the insulator. SUMMARY OF THE INVENTION An object of the present invention is to provide an electric motor as described above, which is advantageous in designing an oscillation technique. 099117543 5 201108569 This object is achieved by the subject matter of the scope of the patent application, which allows the bearing to be bonded to the bearing bridge and/or to the m-bridge via the spacer to be bonded to the insulator. It is therefore advantageous in the assembly technique to make the rotor coaxially aligned with the stator. The fixing of the shaft κ on the bearing bridge utilizes an adhesive joint, which preferably uses an adhesive that fills the gap. The bearing bridge of the bearing is only pre-positioned by the bearing, and the positive bearing is finely adjusted by the adhesive coating, and the adhesive is hardened to make the rotor shaft coaxially align the stator. The combination or replacement design allows the bearing bridge to be bonded to the insulator via a spacer. This design also has a unique meaning, that is, it does not need to force the bearing to bond with the bridge, and it is difficult to use the adhesive to fill the gap. 'Therefore, the alignment of the spacers in the adhesive coating can be used to achieve accurate alignment after the adhesive hardens. In another preferred embodiment, the bonding of the bearing bridge and/or the bearing bridge to the insulator via a spacer is performed at the two bearing bridges. Use the device to position the rotor in the center of the gallery. In order to maintain the freedom of each assembly step, it is necessary to leave: : gaps, especially bearing bridges and spacers, and bearings and gaps, so that no collision occurs during assembly. By using spacers in each bridge system, the self-resonance of the system can be greatly improved, and the wall thickness of the bearing bridge can be small, especially in the range of a few tenths of a millimeter to 2 = Inside. Compared to the conventional axis, the tolerance of the part can be compensated by the adhesive connection. Hehe, and 099117543 = the special characteristics of the company's patents based on the scope of the application of the scope of the patent. It may also be independent of the individual features of the scope of patent application or the patent application scope of 201108569. In another preferred embodiment, the bearing bridge defines a recess in which the bearing is disposed. The straight and the south are placed to fill the annular gap of the adhesive to match the bearings provided. The bearing bridge is preferably made of a metal bent part, and the groove is integrally formed with the bearing bridge. The _ piece is preferably matched with the bearing bridge recess. It is also designed as a groove. The center has: the hole is turned into a perforation, and the spacer is concave-diameter fits the bearing bridge groove. Only the 'peak bridge groove' It is also necessary to consider the ring of the lion-filled mixture. The center hole of the gap is aligned with the groove of the bearing bridge to allow the rotor shaft to pass through. The perforations preferably have the same diameter. In another preferred embodiment, the spacer is a plastic member, particularly a rigid plastic member, which is made by transferring it into a county. Therefore, the spacer and the stator insulation system are made of the same plastic and can be bonded to the same. The spacers and/or the bearings are connected to the bearing bridge and the insulator via a radial bonding gap that varies in _. The average radial width of the bond gap here is a few tenths of a meter, especially 3_20/10mm. The gap allows the bearing to have sufficient mobility in the bearing housing and/or the spacer relative to the insulator or bearing bridge. This activity can be utilized to fill the gap filling adhesive, so that the rotor accurately aligns the stator to The adhesive is positioned in this position after hardening. Therefore, when the adhesive is in a hardened state, the adhesive gap has a circumferentially varying radial width due to the above alignment. Ideally, that is, when the component has no tolerance, the adhesive gap has a uniform radial width on the circumference. 099117543 7 201108569 The spacer axially encloses the bearing via the bearing bridge groove wall, in a preferred embodiment, at least partially covering the bearing bridge groove of the bearing in terms of axial height, the bearing bridge groove The bottom is preferably completely attached to the bottom of the spacer parallel thereto... In order to advantageously pre-position the component, in particular to pre-position the spacer to the insulator to be bonded, the outer side of the spacer may be provided with a pattern, i.e., a radial projection and a recess. In another embodiment of the subject matter of the present invention, the outside of the spacer is provided with a piping which is formed, for example, by a radial or axial rib. The spacer may constitute a fill ring 'to fill the distance between the bearing bridge groove and the stator insulator. The spacer of the self-resonance of the system can be filled to fill the annular space and the bearing bridge groove is bonded to the stator insulator. The invention relates to an assembly method of an electric motor (especially a reluctance motor), which comprises a rotor and a stator, the stator being disposed in a motor housing formed by two housing portions each forming a bearing bridge, each of which is provided with a rolling or sliding bearing supporting a rotor shaft of the rotor, the stator Covered by an insulator, the insulator is provided with stator windings, first assembling the stator with the insulator covering the stator poles, and then mounting the stator windings. The above method is conventional. The stator winding wire is used to cover the insulator of the stator pole, so that the rotor and the rotor The rotor is passed through the stator, and then the motor housing and its bearing bridge are aligned with the rotor shaft. The rolling or sliding bearing that supports the rotor shaft is inserted into the corresponding arrangement of the bearing bridge. The object of the present invention is to provide - The above method, especially the simple rotation of the 099117543 〇201108569 sub-axis coaxial alignment, to further improve the advantageous design of the vibration technology This purpose is achieved by the object of the first application of the patent scope, the mounting sleeve is aligned, and the bearing on the shaft is adjusted relative to the bearing bridge to make the rotation. In particular, the bearing bridge is also passed through a space. The method of positioning and squeezing the β can directly align the rotor shaft coaxially with the stator. Even if the components have large tolerances, it can be advantageously compensated in (4) technology. The bearing of the rotor shaft is bonded. The agent is fixed on the bearing bridge 10. The adhesive applied to the bonding surface can make the rotor shaft coaxially aligned with the stator, and is fixed to the position after the adhesive is hardened. Therefore, each bearing is in the bearing bridge setting portion. In the case of a vehicle, the bearing is surrounded by an annular gap, and the annular gap is filled with the adhesive of the gap. Therefore, the shaft can be tilted in the bearing bridge setting portion during assembly, so that the 'sub-axis is coaxial In the advantageous design, there is a spacer between the bearing bridge (especially the bearing setting part) and the insulator. The cow is bonded to the m bridge and the insulator. Here, the rotor can be fine-tuned. The alignment of the vehicle. Adhesive After being fixed, it is fixed in the alignment position. In addition, the parts can be used and can be added to the self-resonance of the system. The adhesion adjustment, especially the table relative to the bearing bridge, and the bearing bridge are fixed to the insulator via the spacer. Conveniently and simply align the rotor shaft and assemble the electric motor. 1The characteristics of the application are mainly based on the subject matter of the application for the 1G item of the special rhyme, or the characteristics of other patent applications (4). It may also be based on the first application of the patent scope or other The individual features of the scope of the patent application are either independent. In the preferred embodiment, before the bearing bridge is mounted on the stator, the adhesive is applied on the shaft of the 099117543 201108569 bridge to pre-position the spacer, so that it can be advanced, especially In the case of the positive rotor shaft, the fine-tuning spacer is fixed at the position when the stalking group is engaged. When the bearing bridge is pre-positioned on the upper center of the core, the spacer is connected to the stator and the spacer and the insulator are connected to several walls. : The mesh member is coated with a binder to fill the spacer and the insulator or the two joint faces are positive. The slit & is positioned. In another embodiment, the spacer is pre-positioned to the insulator prior to mounting the bearing bridge to the stator. In this embodiment, the binder is pre-defined, and the adhesive can be applied to the surface of the bearing bridge when the rotor is aligned and/or the bearing bridge is applied, and the male member is coated. The surface that interacts here. The bridge and the spacer insert the rotor shaft into the stator covered by the insulator, and then the spacer between them, and then the bearing is sleeved on the rotor shaft. This = the bearing bridge and the rotor shaft can also be fixed by using 'bonding' and then the rotor::: bearing inner ring bearing into the bearing bridge groove looking portion, and between the ball bearing outside the shaft inner wall - ring The gap 'the gap is filled with the adhesive, and (4) the timing is changed until the rotor shaft is the same as the (four) positive stator. The method can be carried out and the bearing can be slightly tilted in the bearing bridge setting portion to achieve accurate rotor shaft alignment. The adhesive for filling the gap is fixed after the hardening of the rotor shaft. The following will be described in detail according to the drawings (4). 〇【Embodiment】 099117543 201108569 FIG. 1 shows an electric motor 1 which is a 4/2 reluctance motor. The two-phase motor is provided with a rotor 3 fixed to the rotor shaft 2. The rotor has two rotor poles 4 that are diametrically opposed. When the electric motor 1 is in operation, the rotor 3 rotates relative to a geometrical axis X passing through the rotor shaft 2. The stator 5 surrounding the rotor 3 has four stator poles 6 positioned at an angle of 90 to each other in the circumferential direction of the rotor 3, which carries the stator windings 7 constituting the coils. In order to electrically insulate the stator 7 from the stator 5, the stator walls in the circumferential direction between the stator pole 6 and the stator pole 6 are covered by an insulator 8 formed of a plastic injection molded article. As shown in Fig. 4, the insulator has a trough-like cross section to cover a portion of the stator adjacent to the winding 7. The stator 5 is disposed in a motor housing 9 that covers the stator. The motor housing consists of two cover housing portions 10, 11 which are at least partially groove-shaped, which are connected to one another in the assembled position. Each of the housing portions 10, 11 constitutes a bearing bridge 12 perpendicular to the axis of rotation X, which at the center forms a recess 13 through which the rotor shaft 2 passes, the bottom portion 14 of the recess being substantially horizontal, ie vertical At the axis of rotation X, the bottom 14 of the groove is axially inward toward the stator 5. The groove wall 15 around the bottom 14 of the groove is perpendicular to the bottom plane of the groove 13. The groove wall 15 does not extend toward the end of the groove bottom 14 to connect the bridge portion of the bearing bridge 12 extending radially outward. Each groove 13 is provided with a bearing 16, in particular a rolling bearing or a sliding bearing. The ball bearing is shown in the figure. The inner diameter of the recess 13 is slightly larger than the outer diameter of the bearing 16, so that the bearing 16 can move each of the slaves and tilt perpendicular to the pivot axis in the recess r 099117543 11 201108569 13 . Here, the inner diameter of the groove makes the gap around the 16 is about 2-.2-lmm, 尤甘β... 凡 凡 疋 is about 〇.3mm. The axial height of the groove matches the thickness of the bearing 16 in the same direction, so that the yoke can be completely disposed in the recess 13. In the case of the inconsistency, the inner ring 17 of each of the 73⁄4 1 κ glazes 16 is sleeved on the rotor shaft 2. The m, garment-shaped gap between the outer ring 18 and the groove wall 15 fills an adhesive 19 which is applied within the groove wall 15 from the inside or the outside of each of the 18 outer sides. The bond 19 can also be injected into the annular gap. The adhesive 19 can be pre-baked prior to hardening of the bearing 16 in the bearing bridge recess 13 in the illustrated embodiment. In the illustrated embodiment, the material thickness of the recess 15 is curved with the housing portion 1 of the bearing bridge 12 Quite a thin wall. 13 (especially the groove bottom 14) has the same material thickness as the bridge portion of the groove wall and is the same as the material thickness of the gold, 11 so that the groove 13 is also covered by the groove-shaped spacer 2G, which is 20 The bearing bridge groove 13 is connected to the stator insulator 8. ^ m_2G is an injection molded part, which is preferably made of the same plastic material as 8. The spacer member 2 is disposed on the inner side of the groove 13 in the axial direction, and is the outer wall of the bridge groove 13 and the outer surface of the insulator 8 and the outer ring of the H13, and has a filling ring 21, and The μ sleeve portion 22 is connected to the spacer bottom portion 23. The socket portion 22 099117543 12 201108569 is at the bottom plane of the spacer 20. The inner diameter of the spacer sleeve portion 22 is larger than the outer diameter of the groove wall 15 and the concave portion is provided. In the case of the groove 13, the radial width of the annular gap between the groove wall 15 and the socket portion 22 is 0.2-lmm', especially 〇3-3-0.5 mm. The adhesive gap 24 is between the bearing 16 and the groove wall 15. The adhesive gap is filled with the adhesive 19, which can be applied on the inner side of the socket portion 22 and/or on the outer side of the groove wall 15. The outer side of the socket portion 22 and the inner side of the insulator 8 create another adhesive gap 24, It is also filled by the adhesive 19. The spacer 20 can be advantageously pre-positioned by the pattern of the piping 26 on the outside of the socket 22. This configuration allows the groove 13 of the bearing bridge 12 to be passed through the spacer 2 The body 8 is adhesively bonded, and the adhesive connection can pre-position the adhesive 19 filled in each of the adhesive gaps 24 before hardening. Before the transformation, the rotating shaft is accurately coaxially aligned with the JL stator 5, and the rotor shaft 2 in the stator 5 and the rotor 3 on the rotor shaft 2 are accurately aligned, and the rotor unit of the shaft can be fixed on the rotor shaft 2 in the groove. 13

可具有不同的徑向寬度。 留出黏合_ 24而㈣隔件2()與轴承橋 黏合在一起亦可對正軸承橋12 099117543 •u興釉承橋凹槽及絕緣體8 尤其是使凹槽底部14抵靠 13 201108569 間隔件底部23,該底部具有一使轉子軸2通過的穿孔25, 該穿孔25基本上對正凹槽底部14的穿孔。 黏合劑19硬化後係固定間隔件20,使得軸承橋12與絕 緣體8連接。 一組裝完成而設有絕緣體8及定子繞組7之定子5在插入 轉子3後可如下進行進一步之組裝: 在間隔件20之套接部22的外壁上塗佈黏合劑,尤其是環 氧樹脂基之雙成分黏合劑,並壓入絕緣體8之設置部中。該 壓合不需縫隙尺寸。黏合劑在3至5分鐘後硬化,故可利用 壓合固定而快速組裝。在該組裝步驟之後定子5兩側設有間 隔件20,由於該壓合而不需以進一步調整定子5及間隔件 20 ° 在進行下一個組裝步驟之前,可在轴承橋12之凹槽13 的外表面上塗佈一類似的黏合劑,然後壓合定子5與軸承橋 12直到達到一預設的軸向尺寸。該黏合與壓合使得後續之 組裝步驟可直接進行。此處亦不需進行進一步調整,因間隔 件20與凹槽13壁的缝隙尺寸約為0.3-0.5mm,而可補償組 件之公差。 下一個組裝步驟中同樣進行第二軸承橋12之固定,並在 固定之後接合軸承橋(例如使用的焊接)而封閉馬達殼體9。 一組裝裝置將轉子3及定子5互相固定在一需要的位置 上。凹槽13的内壁被塗佈一厭氧黏合劑。該黏合劑之特徵 099117543 14 201108569 為金屬接觸硬化後不含空氣。可添加一活化劑(例如銅鹽) 而大為縮短硬化時間。轴承16被壓合在轉子軸2上,而套 接在其末端的位置上。 在下一步驟中以轉子3及定子極6間的縫隙尺寸而使轉子 3、轉子軸2及轴承16軸向對正馬達殼體9。軸承外環與四 才㈢13之間的縫隙尺寸約為〇.3mm。如已對正,則使用丈 具等固定彼此之位置,並在軸承16之周圍缝隙中的黏合劑 中點狀加入活化劑,而在約2分鐘後達到硬化。被夹固之組 件在硬化時處於一等待位置,之後可移除央具。故精準同車 對正轉子3及定子5。 利用填補黏合劑19之黏合縫隙24可在組裝技術上有利地 補償製造公差。使用間隔件2()可提高整個電動馬達i之自 &共振’軸承橋12可具較小的壁厚,而有利於電動馬達1 之重量。 所有揭不特徵本身皆具有發明性質。本發明揭米之特微70 全包含於本案之申請專利範圍中。 【圖式簡單說明】 ,目1係本發明電動馬達之讀分解圖,包括4有-絕緣 . Ά子、〜且的定子、構成馬達殼體的兩殼體部及〆其轉孑 軸與兩間隔件的轉子。 圖2係本發明電動馬達之立體圖。 圖3係本發明電動馬達讀視圖。 [ 099117543 15 201108569 圖4係圖3線IV-IV之剖面圖。 圖5係圖4部分V之放大圖。 【主要元件符號說明】 1 電動馬達 2 轉子轴 3 轉子 4 轉子極 5 定子 6 定子極 7 定子繞組 8 絕緣體 9 馬達殼體 10 殼體部 11 殼體部 12 軸承橋 13 凹槽 14 凹槽底部 15 凹槽壁 16 軸承 17 内環 18 外環 19 黏合劑 099117543 16 201108569 20 間隔件 21 填補環 22 套接部 23 間隔件底部 * 24 黏合縫隙 * 25 穿孔 26 滚邊 X 轉軸 099117543 17Can have different radial widths. Leave the adhesive _ 24 and (4) The spacer 2 () is bonded to the bearing bridge and can also be aligned with the bearing bridge 12 099117543 • The glazed yoke groove and the insulator 8 especially the groove bottom 14 abuts 13 201108569 spacer The bottom portion 23 has a perforation 25 through which the rotor shaft 2 passes, the perforation 25 substantially aligning the perforations of the bottom portion 14 of the groove. After the adhesive 19 is hardened, the spacer 20 is fixed so that the bearing bridge 12 is connected to the insulator 8. After assembly, the stator 5 provided with the insulator 8 and the stator winding 7 can be further assembled after being inserted into the rotor 3: an adhesive, in particular an epoxy resin base, is applied to the outer wall of the sleeve portion 22 of the spacer 20. The two-component adhesive is pressed into the set portion of the insulator 8. This press does not require a gap size. The adhesive hardens after 3 to 5 minutes, so it can be assembled quickly by press-fitting. After the assembly step, spacers 20 are provided on both sides of the stator 5, and it is not necessary to further adjust the stator 5 and the spacer 20° due to the pressing, before the next assembly step, the groove 13 of the bearing bridge 12 can be A similar adhesive is applied to the outer surface and the stator 5 and bearing bridge 12 are then pressed until a predetermined axial dimension is achieved. This bonding and pressing allows the subsequent assembly steps to be carried out directly. Further adjustments are not required here, since the gap between the spacer 20 and the wall of the recess 13 is about 0.3-0.5 mm, and the tolerance of the assembly can be compensated. The fixing of the second bearing bridge 12 is also carried out in the next assembly step, and after the fixing, the bearing bridge (e.g., the welding used) is engaged to close the motor housing 9. An assembly device secures the rotor 3 and the stator 5 to each other in a desired position. The inner wall of the recess 13 is coated with an anaerobic adhesive. Characteristics of the adhesive 099117543 14 201108569 Air-free after contact hardening. An activator (such as a copper salt) can be added to greatly shorten the hardening time. The bearing 16 is press-fitted to the rotor shaft 2 and is placed at its end. In the next step, the rotor 3, the rotor shaft 2, and the bearing 16 are axially aligned with the motor housing 9 by the gap size between the rotor 3 and the stator pole 6. The gap between the outer ring of the bearing and the four (three) 13 is about 〇3 mm. If they are aligned, the position of each other is fixed using a tool or the like, and the activator is added in a dot form in the adhesive in the gap around the bearing 16, and hardening is achieved after about 2 minutes. The clamped component is in a waiting position when hardened, after which the implement can be removed. Therefore, the same car is aligned with the rotor 3 and the stator 5. The use of the adhesive gap 24 filling the adhesive 19 advantageously compensates for manufacturing tolerances in assembly techniques. The use of the spacer 2() can increase the self-resonance of the entire electric motor i and the bearing bridge 12 can have a smaller wall thickness, which is advantageous for the weight of the electric motor 1. All of the features are inherently inventive. The invention of the present invention is fully included in the scope of the patent application of the present application. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded view of the electric motor of the present invention, including four insulated wires, a stator, a two-shell portion constituting a motor casing, and a turn shaft and two The rotor of the spacer. Figure 2 is a perspective view of the electric motor of the present invention. Figure 3 is a view of the electric motor of the present invention. [099117543 15 201108569 Figure 4 is a cross-sectional view taken along line IV-IV of Figure 3. Figure 5 is an enlarged view of a portion V of Figure 4. [Main component symbol description] 1 Electric motor 2 Rotor shaft 3 Rotor 4 Rotor pole 5 Stator 6 Stator pole 7 Stator winding 8 Insulator 9 Motor housing 10 Housing part 11 Housing part 12 Bearing bridge 13 Groove 14 Groove bottom 15 Groove wall 16 Bearing 17 Inner ring 18 Outer ring 19 Adhesive 099117543 16 201108569 20 Spacer 21 Fill ring 22 Sleeve 23 Spacer bottom* 24 Bonding gap* 25 Perforation 26 Rolling X Rotary shaft 099117543 17

Claims (1)

201108569 七、申請專利範圍: 1. 一種電動馬達(1),尤其是磁阻馬達,其包括—轉子(3) 及一定子(5) ’定子(5)被設置在一由兩殼體部所構成的馬達 殼體(9)中,該殼體部(^丨丨)各構成一軸承橋〇2),軸承橋(12) 中各設置一支撐轉子(3)之轉子軸(2)的滾動或滑動軸承 (16),定子(5)由一絕緣體(8)覆蓋,該絕緣體設置有定子繞 組⑺’其特徵為:使軸承(16)與軸承橋(12)黏合連接,及/ 或使軸承橋(12)經由一間隔件(20)而與絕緣體(8)黏合連接。 2. 如申請專利範圍第1項之電動馬達,其中,軸承橋(12) 構成一容置轴承(16)之凹槽(13)。 3. 如上述一項或多項申請專利範圍之電動馬達,其中,間 隔件(20)設作凹槽狀,其中心具有一使轉子軸(2)通過的穿孔 (25)。 4. 如上述一項或多項申請專利範圍之電動馬達,其中’間 隔件(20)是一塑膠件。 5. 如上述一項或多項申請專利範圍之電動馬達,其中,間 隔件(20)及/或轴承(16)經由一在圓周上變化的徑向黏合縫 隙(24)而與軸承橋(12)及絕緣體⑻連接。 6. 如上述一項或多項申請專利範圍之電動馬達’其中,間 隔件(20)經由軸承橋(12)之凹槽壁(丨5)而軸向包覆軸承(16)。 7. 如上述一項或多項申請專利範圍之電動馬達,其中,間 隔件(20)外侧設有圖案。 099117543 18 201108569 8·如上述-項❹項巾請專利範圍之電動馬達,其中,間 隔件(20)外側設有滾邊。 9_如上述-項以項巾請專賴圍之電動馬達,其中,間 隔件(20)具一填補環(21)。 10-種尤其是磁阻馬ϋ之電動馬達⑴之組裝I法,該電 動馬達包括-轉子(3)及-定子(5),定子(5)被設置在一由\ 殼體部所構成的馬達殼體(9)中,該殼體部(1〇,各構成一 轴承橋(12) ’軸承橋(12)中各設置—支撐轉子⑺之轉子轴⑺ 的滾動或滑動軸承(I6),定子(5)由一絕、緣體⑻覆蓋,該絕 緣體設置有定子繞組⑺,首先使定子(5)與覆蓋定子極⑹的 絕緣體(8)組裝在一起,然後安裝定子繞組(7),其特徵為: 安裝軸承橋⑽後,個轉子軸⑵上軸承⑽㈣於轴承橋 (12)的黏合調整而使轉子(3)對正定子(5),X其是同時使軸 承橋(12)經由一間隔件(2〇)而定位於絕緣體(8)。 11.如申請專職圍第Π)項之方法,其中,將歸橋⑽ 安裝到定子(5)上之前,在軸承橋⑽上塗佈黏合劑而預先定 位間隔件(20)。 12.如申請專·圍第1G或n項之方法,其巾,將轴; 橋⑽絲到定子(5)上之前,以黏合劑將間隔件⑽預先, 位於絕緣體(8)。 、13.如中請專鄉圍第1()至12項中任—項或多項之; 法’其中’將轉子軸(2)插人被絕緣體(8)所覆“定 099117543 201108569 中,然後安裝軸承橋(12)與其間之間隔件(20),再將軸承(16) 套接於轉子軸(2)上。 099117543 20201108569 VII. Patent application scope: 1. An electric motor (1), especially a reluctance motor, comprising a rotor (3) and a stator (5) 'the stator (5) is arranged in a two-part housing In the motor housing (9), the housing portions each form a bearing bridge 2), and each of the bearing bridges (12) is provided with a rolling shaft (2) for supporting the rotor (3). Or a plain bearing (16), the stator (5) is covered by an insulator (8) provided with a stator winding (7)' characterized by: bonding the bearing (16) to the bearing bridge (12), and/or making the bearing The bridge (12) is adhesively coupled to the insulator (8) via a spacer (20). 2. The electric motor of claim 1, wherein the bearing bridge (12) constitutes a recess (13) for receiving the bearing (16). 3. An electric motor according to one or more of the preceding claims, wherein the spacer (20) is provided in the form of a groove having a perforation (25) passing through the rotor shaft (2) at the center. 4. An electric motor according to one or more of the preceding claims, wherein the 'spacer (20) is a plastic piece. 5. An electric motor according to one or more of the preceding claims, wherein the spacer (20) and/or the bearing (16) is coupled to the bearing bridge (12) via a circumferentially varying radial bonding gap (24) And the insulator (8) is connected. 6. An electric motor as claimed in one or more of the above claims, wherein the spacer (20) axially encloses the bearing (16) via a groove wall (丨5) of the bearing bridge (12). 7. An electric motor according to one or more of the preceding claims, wherein the spacer (20) is provided with a pattern on the outside. 099117543 18 201108569 8. The electric motor of the patent range of the above-mentioned item, wherein the outer side of the spacer (20) is provided with a piping. 9_If the above-mentioned item is for the item, please rely on the electric motor, where the spacer (20) has a filling ring (21). 10, in particular, an assembly method of an electric motor (1) of a reluctance stirrup, the electric motor comprising a rotor (3) and a stator (5), the stator (5) being arranged in a housing portion In the motor housing (9), the housing portions (1) each constitute a bearing bridge (12) - each of the bearing bridges (12) is provided with a rolling or sliding bearing (I6) for supporting the rotor shaft (7) of the rotor (7), The stator (5) is covered by a permanent body (8) provided with a stator winding (7), which first assembles the stator (5) with the insulator (8) covering the stator pole (6), and then mounts the stator winding (7). The characteristics are as follows: After the bearing bridge (10) is installed, the bearing (10) (4) of the rotor shaft (2) is adjusted to the bearing bridge (12) so that the rotor (3) is aligned with the stator (5), and X is simultaneously passed through the bearing bridge (12). The spacer (2〇) is positioned in the insulator (8). 11. For the method of applying for the full-time enclosure, in which the bridge (10) is coated on the bearing bridge (10) before being applied to the stator (5) The spacer is pre-positioned (20). 12. If the method of applying the 1G or n item is applied, the towel, the shaft; the bridge (10) wire is placed on the stator (5), and the spacer (10) is pre-positioned on the insulator (8) with an adhesive. 13. If the middle of the township is from 1st to 12th, the term or multiple items are included; the law 'where' the rotor shaft (2) is inserted by the insulator (8) "set 099117543 201108569, then Install the bearing bridge (12) with the spacer (20) and then the bearing (16) on the rotor shaft (2). 099117543 20
TW099117543A 2009-06-16 2010-06-01 Electric motor and method for assembling of an electric motor TWI492494B (en)

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