JPH07245901A - Generator for vehicle - Google Patents
Generator for vehicleInfo
- Publication number
- JPH07245901A JPH07245901A JP3485994A JP3485994A JPH07245901A JP H07245901 A JPH07245901 A JP H07245901A JP 3485994 A JP3485994 A JP 3485994A JP 3485994 A JP3485994 A JP 3485994A JP H07245901 A JPH07245901 A JP H07245901A
- Authority
- JP
- Japan
- Prior art keywords
- stator core
- bolt tightening
- bolt
- tightening seat
- peripheral surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Motor Or Generator Frames (AREA)
- Synchronous Machinery (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は車両用発電機に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle generator.
【０００２】[0002]
【従来の技術】図８は従来の一般的な車両用発電機を示
す軸方向断面図である。図において、１は回転子、２は
回転子１の軸であり、この軸２により回転子１は軸受３
ａ，３ｂを介してフロントブラケット４ａおよびリヤブ
ラケット４ｂに支持される。５は固定子コイル６を装着
した固定子鉄心であり、フロントブラケット４ａおよび
リヤブラケット４ｂの両嵌合部７ａ，７ｂ間に嵌合され
る。８は両ブラケット４ａ，４ｂを結合する通しボル
ト、９は図９に示すように両ブラケット４ａ，４ｂにそ
れぞれ形成した通しボルト締付座部である。2. Description of the Related Art FIG. 8 is an axial sectional view showing a conventional general vehicle generator. In the figure, 1 is a rotor, 2 is a shaft of the rotor 1, and the shaft 2 causes the rotor 1 to have a bearing 3
It is supported by the front bracket 4a and the rear bracket 4b via a and 3b. Reference numeral 5 denotes a stator core on which a stator coil 6 is mounted, which is fitted between both fitting portions 7a and 7b of the front bracket 4a and the rear bracket 4b. Reference numeral 8 is a through bolt for connecting both brackets 4a and 4b, and 9 is a through bolt tightening seat formed on both brackets 4a and 4b as shown in FIG.
【０００３】[0003]
【発明が解決しようとする課題】従来の車両用発電機
は、図８に示すように固定子鉄心５はフロントブラケッ
ト４ａおよびリヤブラケット４ｂの両嵌合部７ａ，７ｂ
間に嵌合され、これらは通しボルト８によって結合する
ことにより構成されるので、図１０に示すように通しボ
ルト８を締付けることにより通しボルト締付座部９を含
むブラケットの通しボルト部分が回転機中心方向に変形
し、固定子鉄心５の内周の真円度が悪化するという問題
点があった。In the conventional vehicular generator, as shown in FIG. 8, the stator core 5 has both fitting portions 7a, 7b of the front bracket 4a and the rear bracket 4b.
Since they are fitted into each other and are connected by the through bolt 8, the through bolt portion of the bracket including the through bolt tightening seat portion 9 is rotated by tightening the through bolt 8 as shown in FIG. There was a problem that the circularity of the inner circumference of the stator core 5 deteriorates due to deformation in the machine center direction.
【０００４】この変形の様子を説明するために変形の倍
率を大きくし、例えばフロントブラケット４ａの開口側
から見たフロントブラケット４ａと固定子鉄心５との変
形の様子を図１１に示す。このように通しボルト８の締
付けによるフロントブラケット４ａと固定子鉄心５との
変形は、通しボルト８の本数に関与する多角形になり、
固定子鉄心５の内周の真円度が悪化することになる。こ
のことにより回転子（図示せず）と固定子鉄心５との空
隙が一様でなくなり、空隙を介して発生する磁気吸引力
が不均一となって、運転時に発生する電磁騒音が大きく
なるのである。In order to explain the state of this deformation, the magnification of the deformation is increased, and, for example, the state of deformation of the front bracket 4a and the stator core 5 viewed from the opening side of the front bracket 4a is shown in FIG. As described above, the deformation of the front bracket 4a and the stator core 5 due to the tightening of the through bolts 8 becomes a polygonal shape that is involved in the number of through bolts 8.
The roundness of the inner circumference of the stator core 5 deteriorates. As a result, the air gap between the rotor (not shown) and the stator core 5 becomes uneven, the magnetic attraction force generated through the air gap becomes non-uniform, and the electromagnetic noise generated during operation increases. is there.
【０００５】この発明は上記のような問題点を解消する
ためになされたもので、従来装置の形状を大幅に変更す
ることなく、通しボルトの締付けに対しても固定子鉄心
の真円度を保ち、固定子鉄心の真円度の悪化による電磁
騒音を回避できる車両用発電機を得ることを目的とす
る。The present invention has been made to solve the above-mentioned problems, and the circularity of the stator core can be maintained even when tightening the through bolts without significantly changing the shape of the conventional device. An object of the present invention is to obtain a vehicular generator that can be kept and avoid electromagnetic noise due to deterioration of roundness of the stator core.
【０００６】[0006]
【課題を解決するための手段】この発明に係る車両用発
電機は、両ブラケットの間に固定子鉄心を入れて前記両
ブラケットを前記固定子鉄心に嵌合させ軸方向の通しボ
ルトにより締付けるものにおいて、前記通しボルトで締
付けた状態で前記ブラケットの固定子鉄心との嵌合部に
より前記固定子鉄心の外周面が内側に押圧変形しないよ
うにしたものである。A vehicle generator according to the present invention is one in which a stator core is inserted between both brackets, the both brackets are fitted to the stator core and tightened by through bolts in the axial direction. In the above, the outer peripheral surface of the stator core is prevented from being pressed and deformed inward by the fitting portion of the bracket with the stator core while being tightened with the through bolt.
【０００７】[0007]
【作用】この発明における車両用発電機は、通しボルト
締付時において、ブラケットの通しボルト締付座部が中
心方向に変形しても、ブラケットの嵌合部全体の変形に
は影響が小さく、またブラケットの通しボルト締付座部
の内周面が固定子鉄心の外周面に接しない限り固定子鉄
心は変形しないことになる。In the vehicle generator according to the present invention, even when the through bolt tightening seat portion of the bracket is deformed toward the center when the through bolt is tightened, the deformation of the entire fitting portion of the bracket is not significantly affected. Further, unless the inner peripheral surface of the through bolt tightening seat portion of the bracket contacts the outer peripheral surface of the stator core, the stator core will not be deformed.
【０００８】[0008]
実施例１．以下、この発明の一実施例を図について説明
する。図１はフロントブラケット４ａの通しボルト締付
座部９を拡大して示す斜視図、図２は図１を下からみた
図であり、前記従来のものと同一または相当部分には同
一符号を付して説明を省略する。図において、１０はフ
ロントブラケット４ａの通しボルト締付座部９の周方向
両側に設けた軸方向の切欠きで、この切欠き１０を利用
して通しボルト締付座部９を変形させてその内周面９ａ
と固定子鉄心５の外周面５ａとの間に空隙１１を構成し
てある。Example 1. An embodiment of the present invention will be described below with reference to the drawings. 1 is an enlarged perspective view showing a through bolt tightening seat portion 9 of the front bracket 4a, and FIG. 2 is a view of FIG. 1 seen from below. And the description is omitted. In the figure, 10 is an axial notch provided on both sides in the circumferential direction of the through bolt tightening seat portion 9 of the front bracket 4a, and the notch 10 is used to deform the through bolt tightening seat portion 9 to Inner peripheral surface 9a
An air gap 11 is formed between the outer peripheral surface 5a of the stator core 5 and the outer core surface 5a.
【０００９】通しボルト８を締付けることにより、通し
ボルト締付座部９は切欠き１０の底部を支点に中心方向
へ，つまり通しボルト締付座部９は軸方向の遊離端側を
内側に向けて首振りをして変形してくる。しかしなが
ら、図２に示すように固定子鉄心５の外周面５ａに対向
する通しボルト締付座部９の内周面９ａは、固定子鉄心
５の外周面５ａに対して適当な空隙１１をもっているの
で、上述のような通しボルト締付座部９の変形が発生し
ても、通しボルト締付座部９の内周面９ａが固定子鉄心
５の外周面５ａと接しない限り、固定子鉄心５の変形を
誘発させることはない。By tightening the through bolt 8, the through bolt tightening seat portion 9 is centered on the bottom of the notch 10 as a fulcrum, that is, the through bolt tightening seat portion 9 is oriented with the axial free end side inward. It swings and deforms. However, as shown in FIG. 2, the inner peripheral surface 9a of the through bolt tightening seat portion 9 facing the outer peripheral surface 5a of the stator core 5 has an appropriate gap 11 with respect to the outer peripheral surface 5a of the stator core 5. Therefore, even if the through bolt tightening seat portion 9 is deformed as described above, unless the inner peripheral surface 9a of the through bolt tightening seat portion 9 contacts the outer peripheral surface 5a of the stator core 5, the stator core It does not trigger the deformation of 5.
【００１０】実施例２．上記実施例１では切欠き１０を
軸方向に設けたものを示したが、図３に示すように溝１
２を周方向に設けても同等程度の効果が得られる。な
お、図３はフロントブラケット４ａの通しボルト締付座
部９を拡大して示す斜視図、図４は図３の軸方向断面の
要部を示す図、図５は図４の作用を説明するための図で
ある。Embodiment 2. In the first embodiment described above, the notch 10 is provided in the axial direction, but as shown in FIG.
Even if 2 is provided in the circumferential direction, the same effect can be obtained. 3 is an enlarged perspective view showing the through bolt tightening seat portion 9 of the front bracket 4a, FIG. 4 is a view showing a main part of the axial cross section of FIG. 3, and FIG. FIG.
【００１１】この実施例において、溝１２を両ブラケッ
ト４ａ，４ｂの各通しボルト締付座部９，９の周方向に
それぞれ設けてあるので、通しボルト８を締付けること
によって、通しボルト締付座部９の加重側通しボルト締
付座部９ｂが図５に示すように押され（引張られ）て微
小変形することになるが、通しボルト締付座部９の内周
面９ａはては両嵌合部７ａ，７ｂの変形には至らず、固
定子鉄心５の真円度は保たれることになる。また、この
ような溝１２は、通しボルト締付座部９に容易に加工で
きる。In this embodiment, since the groove 12 is provided in the circumferential direction of the through bolt tightening seat portions 9 of both brackets 4a and 4b, the through bolt 8 is tightened by tightening the through bolt 8. The weight side through bolt tightening seat portion 9b of the portion 9 is pushed (pulled) as shown in FIG. 5 and is slightly deformed, but the inner peripheral surface 9a of the through bolt tightening seat portion 9 has both sides. The fitting portions 7a and 7b are not deformed, and the circularity of the stator core 5 is maintained. Further, such a groove 12 can be easily processed in the through bolt tightening seat portion 9.
【００１２】実施例３．図６に示すように、上記実施例
１の切欠き１０と上記実施例２の溝１２とを設けたもの
とすれば、通しボルト８の締付けに対する固定子鉄心５
の真円度はさらに確保されるものである。Embodiment 3. As shown in FIG. 6, if the notch 10 of the first embodiment and the groove 12 of the second embodiment are provided, the stator core 5 against the tightening of the through bolt 8 will be described.
The roundness of is further secured.
【００１３】実施例４．また、図７に示すように、上記
実施例２の溝１２に緩衝部材１３として例えばゴム製弾
性部材を挿入すれば、電磁騒音の発生をさらに抑制でき
るという効果が得られる。また、このゴム製弾性部材１
３により加重側通しボルト締付座部９ｂの過度の変形を
防止できる。なお、上記実施例３の溝１２においても同
様にして同様の効果が得られることは勿論である。Embodiment 4. Further, as shown in FIG. 7, if a rubber elastic member, for example, is inserted as the buffer member 13 into the groove 12 of the second embodiment, the effect of further suppressing the generation of electromagnetic noise can be obtained. Also, this rubber elastic member 1
3 can prevent excessive deformation of the weight side through bolt tightening seat portion 9b. Of course, similar effects can be obtained in the groove 12 of the third embodiment.
【００１４】実施例５．上記実施例１，３，４ではフロ
ントブラケット４ａの通しボルト締付座部９について述
べたが、リヤブラケット４ｂの通しボルト締付座部９に
ついても同様の効果が得られるし、さらに両ブラケット
４ａ，４ｂの各通しボルト締付座部９にそれぞれ同様に
設ければさらなる効果が得られることは勿論である。Example 5. Although the through bolt tightening seat portion 9 of the front bracket 4a has been described in the first, third, and fourth embodiments, the same effect can be obtained with the through bolt tightening seat portion 9 of the rear bracket 4b, and further, both brackets 4a. It is needless to say that further effects can be obtained if the through bolt tightening seat portions 9 of 4 and 4b are similarly provided.
【００１５】また、上記実施例２では両ブラケット４
ａ，４ｂの各通しボルト締付座部９にそれぞれ設けたも
のを示したが、いずれか一方のブラケット４ａまたは４
ｂの通しボルト締付座部９に設けてもよい。さらに、上
記各実施例１〜４の構成を両ブラケット４ａ，４ｂにお
いて任意に片方ずつ組み合わせてもよい。In the second embodiment, both brackets 4 are used.
Although it is shown that the through bolt tightening seat portions 9 of a and 4b are respectively provided, one of the brackets 4a or 4
It may be provided on the through bolt tightening seat portion 9b. Furthermore, the configurations of the above-described first to fourth embodiments may be arbitrarily combined in each of the brackets 4a and 4b.
【００１６】[0016]
【発明の効果】以上のように、この発明によれば従来装
置の形状を大幅に変更することなく、通しボルトの締付
けに対しても固定子鉄心の真円度を保ち、固定子鉄心の
真円度の悪化による電磁騒音を回避できるという効果が
得られる。As described above, according to the present invention, the circularity of the stator core is maintained even when the through bolt is tightened, and the roundness of the stator core is maintained without significantly changing the shape of the conventional device. The effect of avoiding electromagnetic noise due to deterioration of roundness is obtained.
【図１】この発明の実施例１を示す要部斜視図である。FIG. 1 is a perspective view of essential parts showing a first embodiment of the present invention.
【図２】図１を下からみた図である。FIG. 2 is a view of FIG. 1 seen from below.
【図３】この発明の実施例２を示す要部斜視図である。FIG. 3 is a perspective view of a main part showing a second embodiment of the present invention.
【図４】図３の軸方向断面の要部を示す図である。FIG. 4 is a view showing a main part of an axial cross section of FIG.
【図５】図４の作用を説明するための図である。5A and 5B are views for explaining the operation of FIG.
【図６】この発明の実施例３を示す要部斜視図である。FIG. 6 is a perspective view of a main part showing a third embodiment of the present invention.
【図７】この発明の実施例４を示す要部斜視図である。FIG. 7 is a perspective view of a main part showing a fourth embodiment of the present invention.
【図８】従来の装置を示す軸方向断面図である。FIG. 8 is an axial sectional view showing a conventional device.
【図９】図８のフロントブラケットの要部を示す斜視図
である。9 is a perspective view showing a main part of the front bracket of FIG.
【図１０】図８の作用を説明するための図である。FIG. 10 is a diagram for explaining the operation of FIG.
【図１１】図９のフロントブラケットの変形を示す図で
ある。FIG. 11 is a diagram showing a modification of the front bracket of FIG. 9.
１ 回転子 ２ 軸 ４ａ フロントブラケット ４ｂ リヤブラケット ５ 固定子鉄心 ７ａ 嵌合部 ７ｂ 嵌合部 ８ 通しボルト ９ 通しボルト締付座部 ９ａ 通しボルト締付座部の内周面 １０ 切欠き １２ 溝 １３ 緩衝部材 1 Rotor 2 Shaft 4a Front Bracket 4b Rear Bracket 5 Stator Iron Core 7a Fitting Part 7b Fitting Part 8 Through Bolt 9 Through Bolt Tightening Seat 9a Through Bolt Tightening Seat Inner Surface 10 Notch 12 Groove 13 Cushioning material
Claims (5)
前記両ブラケットを前記固定子鉄心に嵌合させ軸方向の
通しボルトにより締付けるものにおいて、前記通しボル
トで締付けた状態で前記ブラケットの固定子鉄心との嵌
合部により前記固定子鉄心の外周面が内側に押圧変形し
ないようにしたことを特徴とする車両用発電機。1. In a structure in which a stator core is inserted between both brackets, the both brackets are fitted to the stator core and tightened by axial through bolts, and the bracket is fixed in the state of being tightened by the through bolts. A generator for a vehicle, wherein an outer peripheral surface of the stator core is prevented from being pressed and deformed inward by a fitting portion with the child core.
ルト締付座部の周方向両側に軸方向の切欠きを設け、こ
の切欠きにより区画される通しボルト締付座部の内周面
を前記ブラケットの嵌合部の内周面よりも外側に位置さ
せたことを特徴とする請求項１記載の車両用発電機。2. A notch in the axial direction is provided on both sides in the circumferential direction of at least one through bolt tightening seat portion of both brackets, and an inner peripheral surface of the through bolt tightening seat part defined by the notch is formed on the bracket. The vehicular generator according to claim 1, wherein the vehicular generator is located outside the inner peripheral surface of the fitting portion.
ルト締付座部に周方向の溝を設けたことを特徴とする請
求項１記載の車両用発電機。3. The vehicular generator according to claim 1, wherein at least one of the brackets has a through bolt tightening seat portion provided with a circumferential groove.
ルト締付座部の周方向両側に軸方向の切欠きを設け、こ
の切欠きにより区画される通しボルト締付座部の内周面
を前記ブラケットの嵌合部の内周面よりも外側に位置さ
せると共に、前記通しボルト締付座部に周方向の溝を設
けたことを特徴とする請求項１記載の車両用発電機。4. A notch in the axial direction is provided on both sides in the circumferential direction of at least one through bolt tightening seat portion of both brackets, and an inner peripheral surface of the through bolt tightening seat portion partitioned by the notch is formed on the bracket. The vehicle generator according to claim 1, wherein the fitting portion is located outside of the inner peripheral surface of the fitting portion, and the through bolt tightening seat portion is provided with a circumferential groove.
とを特徴とする請求項３または４記載の車両用発電機。5. The vehicular generator according to claim 3, wherein a cushioning member is inserted in the groove in the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3485994A JPH07245901A (en) | 1994-03-04 | 1994-03-04 | Generator for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3485994A JPH07245901A (en) | 1994-03-04 | 1994-03-04 | Generator for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07245901A true JPH07245901A (en) | 1995-09-19 |
Family
ID=12425904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3485994A Pending JPH07245901A (en) | 1994-03-04 | 1994-03-04 | Generator for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07245901A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6337530B1 (en) | 1997-10-17 | 2002-01-08 | Denso Corporation | AC generator for vehicle with helical stator having bolt recesses on outer cylindrical surface |
| JP2009216062A (en) * | 2008-03-12 | 2009-09-24 | Mitsuba Corp | Starter |
| JP2014023352A (en) * | 2012-07-20 | 2014-02-03 | Asmo Co Ltd | Motor |
| CN103872858A (en) * | 2012-12-14 | 2014-06-18 | 迪尔公司 | Electric machine stator securing method |
| JP2015053760A (en) * | 2013-09-05 | 2015-03-19 | アスモ株式会社 | Motor |
-
1994
- 1994-03-04 JP JP3485994A patent/JPH07245901A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6337530B1 (en) | 1997-10-17 | 2002-01-08 | Denso Corporation | AC generator for vehicle with helical stator having bolt recesses on outer cylindrical surface |
| JP2009216062A (en) * | 2008-03-12 | 2009-09-24 | Mitsuba Corp | Starter |
| JP2014023352A (en) * | 2012-07-20 | 2014-02-03 | Asmo Co Ltd | Motor |
| CN103580355A (en) * | 2012-07-20 | 2014-02-12 | 株式会社电装 | Electric motor |
| US9263923B2 (en) | 2012-07-20 | 2016-02-16 | Denso Corporation | Electric motor having first frame and second frame fastened together with through bolt |
| CN103580355B (en) * | 2012-07-20 | 2017-04-12 | 株式会社电装 | Electric motor |
| CN103872858A (en) * | 2012-12-14 | 2014-06-18 | 迪尔公司 | Electric machine stator securing method |
| JP2015053760A (en) * | 2013-09-05 | 2015-03-19 | アスモ株式会社 | Motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10193411B2 (en) | Outer rotor motor | |
| WO2011158471A1 (en) | Fan motor, on-vehicle air conditioner using the fan motor, and method for assembling fan motor | |
| JPH04229046A (en) | Rotor shift type motor | |
| JPH07245901A (en) | Generator for vehicle | |
| JP2004262286A (en) | Blower motor support structure | |
| CN115667758A (en) | Electromagnetic suspension | |
| JP3076718B2 (en) | Dynamic damper | |
| US7320480B2 (en) | Structure for fixing steering-gear housing | |
| JP3267419B2 (en) | Rotating electric machine | |
| JP3266721B2 (en) | Propeller shaft center bearing | |
| JPH11234956A (en) | Vibration damping structure of sr motor | |
| JPH11125290A (en) | Cylindrical vibration isolating device | |
| JPH10315789A (en) | Engine supporting device | |
| JP2000287396A (en) | Rotor for electric motor | |
| JPH1122785A (en) | Engine mount damper | |
| JPH08130847A (en) | Motor | |
| JPH08226491A (en) | Vibration isolating mount | |
| JP2022180870A (en) | Vibration control device | |
| JPH10136605A (en) | Thrust-supporting device for motor | |
| JPH04113048A (en) | Cylindrical antirattle rubber | |
| JP3260579B2 (en) | Electromagnetic coupling device | |
| JPH0740409Y2 (en) | Center bearing support | |
| JPH087150Y2 (en) | Electromagnetic clutch | |
| JPH06233513A (en) | Spindle motor | |
| JPH11243660A (en) | Rotating electric machine |