201206026 六、發明說明： ' 【發明所屬之技術領域】 本發明係有關旋轉電機及其製造方法。 【先前技術】 以往之旋轉電機係為了將定子（stator)固定於殼體 (housing)而進行與具有定子安裝面的殼體間之熱套（參照 例如專利文獻1)。但，當將定子與殼體藉由熱套而固定 時，需要加熱殼體，而需要加熱爐等設備費和其管理費、 設置空間，故將提高製造成本。另外，由於因熱套而會對 定子施加來自殼體的應力，故於定子鐵心產生變形而將成 為轉矩脈動的惡化或馬達效率降低的要因。因此，有於在 具有較定子外徑稍大之直徑的内周面的殼體中，將定子配 置於殼體，且於定子之外周面與殼體之内周面間注入接著 劑而加以固定的方法（參照例如專利文獻2)。 (先前技術文獻） (專利文獻） [專利文獻1]日本特開2004-201428號公報（第9項，第1 圖） [專利文獻2]日本特開2008-92759號公報（第8項，第2圖） 【發明内容】 (發明所欲解決的課題） 然而，如上所述，當採用將定子與殼體藉由接著劑而 固定的製造方法時，由於接著劑之使用量多，故存有製造 成本增高的問題。因此，對於製造成本低廉之旋轉電機及 4 322812 201206026 其製造方法的要求增高。 (解決課題的手段） 本發明之一例的旋轉電機，係具有：定子，於定子鐵 心設有線圈；殼體，保持前述定子；以及接著層，設置於 定子之殼體固定面與殼體之定子安裝面之間，將定子之殼 體固定面與定子安裝面予以接著；且前述接著層係含有粒 體與結合材。 本發明之一例的旋轉電機之製造方法，係具有：形成 定子鐵心的步驟；於所形成之定子鐵心捲繞線圈而形成定 子的步驟；形成用以保持定子之殼體的步驟；形成設置於 定子之殼體固定面與殼體之定子安裝面之間，將殼體固定 面與定子安裝面予以接著之接著層的步驟；且形成接著層 的步驟，係使用由線圈之廢材或於形成定子鐵心之步驟中 產生的廢材而獲得的粒體，以及使定子之殼體固定面、殼 體之定子安裝面、及粒體結合的結合材而形成接著層。 (發明效果） 本發明之一例的旋轉電機係採用如上所述之構成，結 果即可提供製造成本低廉的旋轉電機及其製造方法。 【實施方式】 (第1實施形態） 以下，根據圖式說明本發明之實施形態。 第1圖為本發明實施形態之旋轉電機的正面示意圖。 如第1圖所示，定子10係具有：定子鐵心la，係藉 由將電磁鋼板等金屬片材（sheet)藉由衝壓機衝切所得零 5 322812 201206026 -··件予以積層形成；以及線圏繞組lbm错' ^ =徑:向外侧具有殼體固定面ic。另：二係： 3的殼體2係具有與該殼_定❿相對㈣定子子安t;la 藉由將定子Η)收納於殼體於定子1〇之 ^1C與殼體2之定子安裝面3之間係形成有間隙又4。另 外紅於定子H)之徑方向内側係配置有以可轉動的方式組合 於軸5的轉子（r〇t〇r)6。 第2圖為示有本發明第1實施形態之旋轉電機的定子 10與忒體2間之固定部分的部分剖面圖。 如第2圖所示，於間隙4係形成有接著層9。該接著 層9係含有粒體7與結合材8。該結合材8係滲透於粒體7 與粒體7之間，並且藉由將定子1〇之殼體固定面ic、殼 體2之定子安裝面3、以及粒體7相互接著而結合。 在此，若使接著層9之厚度為G，粒體7之平均徑為 D，則其各者之大小比率為D/G‘i/3左右。 第3圖為示有粒體7剖面形狀之一例圖。第3圖（A) 為示有大致圓形之固形體，第3圖（B)為示有大致丨字狀、 大致L字狀、大致V字狀之固形體之一例。 另外，對於結合材8之種類’除了丙烯酸（acryiic) 類接著劑等有機類接著劑之外，亦可使用水泥（cement)等 無機類接著劑等。 其次，對於本發明第1實施形態之旋轉電機之製造方 法的一例使用第1圖至第4圖進行說明。於藉由該製造方 6 322812 201206026 法而得的旋轉電機中所使用的粒體7係含有由與定子鐵心 la為相同材料，或藉由與線圈比相同材料而形成。 材料所構成的粒體7。 ，、第4圖為使用將電磁鋼板等金屬薄片藉由衝壓加工而 形成定子鐵心la時所產生的廢材u、或線圈繞組化之廢 材12作為粒體7時之示意圖。 於該實施形態中，首先，如第4圖所示，藉 鋼板等金屬薄片衝壓加U卩可獲得構成定子鐵。各層 之一部分的大致τ字型金屬片。帛4圖係示有衝切大致ts 字型部分後所剩餘的金屬片材，大致τ字型之部分係未圖 示。藉由將所得之大致Τ字型金屬片圓形配置，並且於紙 面方向（與第1圖之軸平行的方向）積層，藉此而形成定子 鐵心la。 其次，藉由於如上所述而得的定子鐵心13捲繞線圈 lb而形成定子1〇。藉由將如上所述而得的定子1〇收納於 殼體2,而於定子1〇之殼體固定面lc、與殼體2之定子安 裝面3之間形成間隙4。 接著，於該間隙4加入複數的粒體7與結合材8。在 此，该粒體7係將由進行衝壓加工時衝切大致τ字型之金 屬片而剩餘的金屬片材（於第4圖中以斜線表示的部分）而 得的廢材11、或將線圈捲繞線之廢材12破碎打細而得。 當將上述廢材11或12用於粒體7時，粒體7之平均直徑 D之下限值依據鐵心積層版（金屬片材）厚度、線圈繞組（磁 線，magnet wire)之線徑等而為約〇. ι_。 322812 7 201206026 結合材8係藉由適度的加熱、冷卻、或時間經過而固 化，藉此，將定子10之殼體固定面lc、殼體2之定子安 裝面3、以及粒體7互相接著。如此，形成接著層9,定子 10係藉由接著於殼體2而被固定。 於習知技術中，為了確保接著強度，係以將接著層之 厚度設定為0. lmm以下，較佳為0. 03至0. 1mm左右為宜。 但，例如當以鑄造的方式製造殼體2時，鑄出後之殼體2 之尺寸公差為±2至1 Omm左右。因此，必須於殼體2之成 形後進行定子安裝面3之追加加工，而存有接著層較0. 1mm 厚的情形。 因此，由於有接著劑變厚的情形，而存有接著強度降 低的問題。 依據本實施形態，由於係在定子10之殼體固定面lc、 與殼體2之定子安裝面3之間隙4間填充粒體7，藉由結 合材8而將定子10固定，因此即使在接著層9變厚的情形 中，亦可高強度地將定子10固定。 另外，亦可減低結合材8的使用量，而可謀求抑制製 造成本。 更且，當於粒體7使用鐵或銅等金屬材料時，可提升 接著層9之散熱性或磁特性，而可謀求提升產品特性。 此外，於本實施形態中，由於加入在定子10之殼體 固定面lc、與殼體2之定子安裝面3之間隙4間的粒體7, 係使用將電磁鋼板等金屬片材衝壓加工而形成定子鐵心 la時所產生的廢材11或線圈繞組lb之廢材12,故可進行 8 322812 201206026 廢材之再利用，而可提升工廠内材料的利用率。 又，如第2圖所示，亦可先將粒體7放入間隙4之後， 再注入結合材8。如上所述，可將粒體7與結合材8分別 加入間隙4。或者，亦可將粒體7與結合材8預先混合而 成者加入間隙4。上述任一情形皆包含於本發明之中。 另外，衝壓加工、廢材之破碎步驟、與在間隙4形成 接著層9的步驟之間通常存有時間延遲。因此，可推想將 以於某特定一次衝壓加工中所得的大致T字型金屬片、和 於為在該特定衝壓加工時所產生的廢材之粒體7使用於同 一個旋轉電機之製造中的情形較少。然而，上述情形亦包 含於本發明中。另外，當然，將於某批量製造的大致T字 型金屬片、與在和該金屬片不同之批量（不同次衝壓加工） 而得之廢材使用於同一個旋轉電機之製造的情形亦包含於 本發明中。 另外，除了加入間隙4之粒體7全部由為製造旋轉電 機時產生之廢材構成的情形之外，亦可有加入間隙4之粒 體7的一部分為由如上所述之廢材構成的情形。 (第2實施形態） 第5圖為本發明實施形態之旋轉電機的正面示意圖。 本實施形態除了將轉子6設定於定子10之外周面側 的點以外，係與第1實施形態相同。對於相同或對應的部 分係附加同一或對應的編號而省略其說明。 依據本實施形態，可獲得與第1實施形態同樣的效果。 (產業上之可利用性） 322812 201206026 本發明係可利用於旋轉電機及旋轉電機製造方法。 【圖式簡單說明】 第1圖係示有本發明實施形態之旋轉電機的正面示意 圖。 第2圖係用以說明本發明第1實施形態之旋轉電機的 定子與殼體間之固定部分的部分剖面圖。 第3圖（A)及（B)係表示粒體之剖面形狀之一例圖。 第4圖係表示使用將電磁鋼板等金屬片材衝壓加工而 形成定子鐵心時所產生的廢材和線圈廢材將定子固定時的 示意圖。 第5圖係本發明第2實施形態之旋轉電機的正面示意 圖。 【主要元件符號說明】 la 定子鐵心 lb 線圈繞組 lc 殼體固定面 2 殼體 3 定子安裝面 4 間隙 5 軸 6 轉子 7 粒體 8 結合材 9 接著層 10 定子 11 ' 12 廢材 10 322812201206026 VI. Description of the invention: 'Technical field to which the invention pertains>> The present invention relates to a rotating electrical machine and a method of manufacturing the same. [Prior Art] In the conventional rotary electric machine, a heat jacket is provided between a housing having a stator mounting surface in order to fix a stator to a housing (see, for example, Patent Document 1). However, when the stator and the casing are fixed by the heat jacket, it is necessary to heat the casing, and the equipment cost such as the heating furnace, the management fee, and the installation space are required, so that the manufacturing cost is increased. Further, since the stress from the casing is applied to the stator due to the heat jacket, deformation of the stator core causes deterioration of torque ripple or a decrease in motor efficiency. Therefore, in a casing having an inner circumferential surface having a diameter slightly larger than the outer diameter of the stator, the stator is disposed in the casing, and an adhesive is injected between the outer circumferential surface of the stator and the inner circumferential surface of the casing to be fixed. (refer to, for example, Patent Document 2). (Prior Art Document) (Patent Document 1) Japanese Laid-Open Patent Publication No. 2004-201428 (No. 9 and First FIG. 1) [Patent Document 2] Japanese Laid-Open Patent Publication No. 2008-92759 (No. 8 (Fig. 2) [Explanation] [Problems to be Solved by the Invention] However, as described above, when a manufacturing method in which a stator and a casing are fixed by an adhesive is used, since the amount of the adhesive is large, there is The problem of increased manufacturing costs. Therefore, there is an increasing demand for a manufacturing method of a rotating electric machine having a low manufacturing cost and 4 322812 201206026. (Means for Solving the Problem) A rotary electric machine according to an aspect of the present invention includes: a stator having a coil provided in a stator core; a casing holding the stator; and an adhesive layer provided on a stator fixing surface of the stator and a stator of the casing Between the mounting faces, the stator fixing surface of the stator and the stator mounting surface are followed; and the subsequent layer contains the granules and the bonding material. A method of manufacturing a rotating electrical machine according to an embodiment of the present invention includes: a step of forming a stator core; a step of forming a stator by winding a coil in the formed stator core; a step of forming a casing for holding the stator; and forming a stator a step of attaching the casing fixing surface and the stator mounting surface to the subsequent mounting layer between the fixing surface of the casing and the stator mounting surface of the casing; and forming the following layer, using the waste material of the coil or forming the stator The granules obtained by the waste material generated in the step of the iron core, and the bonding material of the stator fixing surface of the stator, the stator mounting surface of the casing, and the granules are combined to form an adhesive layer. (Effect of the Invention) The rotary electric machine according to an example of the present invention has the above configuration, and as a result, a rotary electric machine having a low manufacturing cost and a method for manufacturing the same can be provided. [Embodiment] (First embodiment) Hereinafter, an embodiment of the present invention will be described based on the drawings. Fig. 1 is a front elevational view showing a rotary electric machine according to an embodiment of the present invention. As shown in Fig. 1, the stator 10 has a stator core la formed by laminating a sheet of metal such as an electromagnetic steel sheet by punching with a punch 5 322812 201206026 - a piece;圏 winding lbm is wrong ' ^ = diameter: has a housing fixing surface ic to the outside. In addition, the second system: the casing 2 of the casing 3 is opposite to the casing _ ❿ ( ( 四 四 四 ; ; ; ; ; ; ; 收纳 收纳 收纳 收纳 收纳 收纳 收纳 收纳 收纳 收纳 收纳 收纳 收纳 收纳 收纳 收纳 收纳 收纳 收纳 收纳 收纳 收纳 收纳 收纳 收纳 收纳There is a gap between the 3 and 4. Further, a rotor (r〇t〇r) 6 rotatably coupled to the shaft 5 is disposed on the inner side in the radial direction of the stator H). Fig. 2 is a partial cross-sectional view showing a fixed portion between the stator 10 and the body 2 of the rotary electric machine according to the first embodiment of the present invention. As shown in Fig. 2, an adhesive layer 9 is formed in the gap 4. This adhesive layer 9 contains the granules 7 and the binder 8. The binder 8 is infiltrated between the granules 7 and the granules 7, and is joined by joining the casing fixing faces ic of the stator 1 , the stator mounting faces 3 of the casing 2, and the granules 7 to each other. Here, when the thickness of the adhesive layer 9 is G and the average diameter of the granular body 7 is D, the size ratio of each of them is about D/G 'i/3. Fig. 3 is a view showing an example of the cross-sectional shape of the granular body 7. Fig. 3(A) shows a solid body having a substantially circular shape, and Fig. 3(B) shows an example of a solid body having a substantially U shape, a substantially L shape, and a substantially V shape. In addition, as the type of the binder 8, an organic binder such as cement may be used in addition to an organic binder such as an acrylic (acrylic) adhesive. Next, an example of a method of manufacturing a rotary electric machine according to the first embodiment of the present invention will be described with reference to Figs. 1 to 4 . The granule 7 used in the rotary electric machine obtained by the method of the manufacturer 6 322812 201206026 is formed of the same material as the stator core la or by the same material as the coil. Granules 7 composed of materials. Fig. 4 is a view showing a state in which the waste material u generated when the stator core la is formed by press working using a metal foil such as an electromagnetic steel sheet, or the waste material 12 wound by the coil is used as the granular body 7. In this embodiment, first, as shown in Fig. 4, the stator iron can be obtained by punching and joining a metal foil such as a steel sheet. A substantially τ-shaped metal piece of a portion of each layer. The 帛4 figure shows the metal sheet remaining after the punching of the ts-shaped portion, and the portion of the approximate τ-shape is not shown. The stator core la is formed by arranging the obtained substantially U-shaped metal pieces in a circular shape and laminating in the paper surface direction (direction parallel to the axis of Fig. 1). Next, the stator 1 is formed by winding the coil lb by the stator core 13 as described above. By accommodating the stator 1〇 as described above in the casing 2, a gap 4 is formed between the casing fixing surface 1c of the stator 1 and the stator mounting surface 3 of the casing 2. Next, a plurality of granules 7 and a binder 8 are added to the gap 4. Here, the granular body 7 is a waste material 11 obtained by punching a metal piece having a substantially τ-shaped shape while being subjected to press working (a portion indicated by oblique lines in FIG. 4), or a coil The waste material 12 of the winding line is broken and thinned. When the above-mentioned waste material 11 or 12 is used for the granule 7, the lower limit of the average diameter D of the granule 7 depends on the thickness of the iron core laminate (metal sheet), the wire diameter of the coil winding (magnet wire), and the like. And for about 〇. ι_. 322812 7 201206026 The bonding material 8 is cured by moderate heating, cooling, or time passage, whereby the casing fixing surface lc of the stator 10, the stator mounting surface 3 of the casing 2, and the granular body 7 are mutually connected. Thus, the adhesive layer 9 is formed, and the stator 10 is fixed by being attached to the casing 2. 1〜左右。 Preferably, the thickness of the adhesive layer is set to 0. lmm or less, preferably 0. 03 to 0. 1mm or so. However, for example, when the casing 2 is manufactured by casting, the dimensional tolerance of the cast casing 2 is about ±2 to 1 Omm. Therefore, it is necessary to carry out additional processing of the stator mounting surface 3 after the formation of the housing 2, and there is a case where the adhesive layer is thicker than 0.1 mm. Therefore, there is a problem that the strength of the adhesive is lowered due to the case where the adhesive becomes thick. According to the present embodiment, since the granular body 7 is filled between the casing fixing surface 1c of the stator 10 and the gap 4 between the stator mounting surface 3 of the casing 2, the stator 10 is fixed by the bonding material 8, so that even after In the case where the layer 9 is thick, the stator 10 can also be fixed with high strength. Further, the amount of the binder 8 to be used can be reduced, and the production cost can be suppressed. Further, when a metal material such as iron or copper is used for the granular body 7, the heat dissipation property or the magnetic property of the subsequent layer 9 can be improved, and the product characteristics can be improved. Further, in the present embodiment, the granular body 7 which is interposed between the casing fixing surface 1c of the stator 10 and the gap 4 between the stator mounting surface 3 of the casing 2 is formed by pressing a metal sheet such as an electromagnetic steel sheet. When the stator core la or the waste material 11 of the coil winding lb is formed, the waste material of the coil material lb can be reused, and the utilization rate of materials in the factory can be improved. Further, as shown in Fig. 2, the granules 7 may be placed in the gap 4 before the bonding material 8 is injected. As described above, the granules 7 and the binder 8 can be separately added to the gap 4. Alternatively, the granules 7 and the binder 8 may be preliminarily mixed to form a gap 4. Any of the above cases is included in the present invention. Further, there is usually a time lag between the press working, the crushing step of the waste material, and the step of forming the subsequent layer 9 in the gap 4. Therefore, it is conceivable that the substantially T-shaped metal piece obtained in a certain one-time press working and the granular body 7 which is a waste material generated at the time of the specific press working are used in the manufacture of the same rotating electric machine. There are fewer situations. However, the above situation is also included in the present invention. In addition, of course, it is also included in the case where a substantially T-shaped metal piece manufactured in a batch and a waste material obtained in a different batch (different press working) from the metal piece are used in the manufacture of the same rotating electrical machine. In the present invention. Further, in addition to the case where the granules 7 added to the gap 4 are all composed of waste materials generated when the rotary electric machine is manufactured, a part of the granules 7 to which the gap 4 is added may be constituted by the waste material as described above. . (Second Embodiment) Fig. 5 is a front elevational view showing a rotary electric machine according to an embodiment of the present invention. This embodiment is the same as the first embodiment except that the rotor 6 is set to a point on the outer peripheral side of the stator 10. The same or corresponding reference numerals are attached to the same or corresponding parts, and the description is omitted. According to this embodiment, the same effects as those of the first embodiment can be obtained. (Industrial Applicability) 322812 201206026 The present invention is applicable to a manufacturing method of a rotating electrical machine and a rotating electrical machine. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a front elevational view showing a rotary electric machine according to an embodiment of the present invention. Fig. 2 is a partial cross-sectional view showing a fixing portion between a stator and a casing of the rotary electric machine according to the first embodiment of the present invention. Fig. 3 (A) and (B) are views showing an example of a sectional shape of a granular body. Fig. 4 is a schematic view showing a state in which a stator is fixed by using a scrap material and a coil waste material which are produced when a metal sheet such as an electromagnetic steel sheet is press-formed to form a stator core. Fig. 5 is a front elevational view showing a rotary electric machine according to a second embodiment of the present invention. [Main component symbol description] la Stator core lb Coil winding lc Shell fixing surface 2 Housing 3 Stator mounting surface 4 Clearance 5 Shaft 6 Rotor 7 Granule 8 Bonding material 9 Next layer 10 Stator 11 ' 12 Waste material 10 322812