JPS5854861A - Magnet holding structure in permanent magnet excited starting motor etc. - Google Patents
Magnet holding structure in permanent magnet excited starting motor etc.Info
- Publication number
- JPS5854861A JPS5854861A JP15205881A JP15205881A JPS5854861A JP S5854861 A JPS5854861 A JP S5854861A JP 15205881 A JP15205881 A JP 15205881A JP 15205881 A JP15205881 A JP 15205881A JP S5854861 A JPS5854861 A JP S5854861A
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- yoke
- holding structure
- brush
- permanent magnet
- 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.)
- Granted
Links
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000007858 starting material Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims 1
- 239000000853 adhesive Substances 0.000 abstract description 3
- 230000001070 adhesive effect Effects 0.000 abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/17—Stator cores with permanent magnets
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Dc Machiner (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は二輪車等に用いる小型の永久磁石励磁式スター
タ等のマグネット保持構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magnet holding structure for a small permanent magnet excited starter used in a motorcycle or the like.
本特許出願人は上記マグネット保持構造に関し先に第１
図（〜、但）に示すごとき開発を行い非常に成果を挙げ
ている。すなわち１図中１はヨーク、２はマグネット、
３はアルミニウム製のマグネットカバーである。The applicant of this patent has previously proposed the first patent regarding the above-mentioned magnet holding structure.
The development shown in the figure (~, however) has been very successful. In other words, in the figure, 1 is the yoke, 2 is the magnet,
3 is an aluminum magnetic cover.
マグネットカバー３は底部とスカート部とを有する筒状
のものでアルミニウムの薄板製であるが底部とスカート
部を有するので剛性があってヨークｌ内にマグネット２
を強固に固着できる機能を有する。またマグネットカバ
−３ｉｉ非磁性体であるから磁気損失がない。The magnet cover 3 has a cylindrical shape with a bottom and a skirt, and is made of a thin aluminum plate. Because it has a bottom and a skirt, it is rigid, and the magnet 2 is inside the yoke l.
It has the function of firmly fixing. Moreover, since the magnet cover 3ii is made of a non-magnetic material, there is no magnetic loss.
マグネット２はフェライト系磁石でロータに面する内周
面の外周縁に適宜面取りが施され。The magnet 2 is a ferrite magnet, and the outer peripheral edge of the inner peripheral surface facing the rotor is appropriately chamfered.
それによって後述のマグネットカバー３のヨーク方向へ
の張出し成形を容易にする。第１図（〜、＠の状態に形
成するには、製造装置の上型ポンチの先端にウレタンゴ
ム等の弾性体を付設しこれを介してプレスするとよい。This facilitates the expansion molding of the magnet cover 3 in the yoke direction, which will be described later. In order to form the state shown in FIG.
マグネットカバー３はその結果としてマグネット２の内
面との合着部３ａ、マグネット２の端面との合着部３ｂ
、ヨーク１との合着部３ｃ、マグネット２の底部と端縁
との間のヨーク１方向へのＵ字状張出し部３ｄ、および
マグネット２間におけるヨーク１方向への張出し部３ｅ
がそれぞれ形成されて接着剤音用いることなくしてヨー
ク１にマグネット３を強固確実に固定することができる
。As a result, the magnet cover 3 has a joining part 3a with the inner surface of the magnet 2 and a joining part 3b with the end surface of the magnet 2.
, a joining part 3c with the yoke 1, a U-shaped overhang part 3d between the bottom and the edge of the magnet 2 in the yoke 1 direction, and an overhang part 3e between the magnets 2 in the yoke 1 direction.
are formed respectively, so that the magnet 3 can be firmly and reliably fixed to the yoke 1 without using adhesive.
ところで第１図（Ａ）、（ロ）に示すものにおいては第
２図に示すごとくマグネットとの合着部における内周面
の直径寸法Ａよりマグネットカバー底部における内周面
の直径寸法Ｂが小さいので組付に際してアーマチュア４
を上方から挿入しなければならず、したがってヨークの
ターミナル５とブラシ６′１ｔつなぐブラシピグテール
７の長さに制約があるので、ブラシ６をブラシホルダー
８の外側から挿入しなければならない。その結果として
ブラシ６は使用摩耗の際にピグテールの取付部分がブラ
シホルダー８と接衝するので有効使用部分６を残して取
換えなければならない。By the way, in the case shown in FIGS. 1(A) and (B), the diameter B of the inner circumferential surface at the bottom of the magnet cover is smaller than the diameter A of the inner circumferential surface at the joint part with the magnet, as shown in FIG. Therefore, when assembling, armature 4
The brush 6 must be inserted from the outside of the brush holder 8 because the length of the brush pigtail 7 that connects the terminal 5 of the yoke and the brush 6'1t is limited. As a result, when the brush 6 wears out during use, the attachment part of the pigtail comes into contact with the brush holder 8, so that the brush 6 must be replaced, leaving only the usable part 6.
本発明はこの点に改良を加え、アーマチュア４を下方か
ら挿入可能とし、その結果として第３図に示すごとくブ
ラシ６をブラシホルダー８の内側から挿入できることと
なり、ブラシ６は有効使用部分を残すことなく全部有効
に使用できることとなった。第３図に示すごとく１本発
明においてはマグネットカバー３のド端部は再加工によ
り上方に折り曲げられてその内周面の寸法Ｃが前記Ｎよ
りも犬となるのでアーマチュア４が下方から挿入可能で
ある。The present invention has improved on this point, allowing the armature 4 to be inserted from below, and as a result, the brush 6 can be inserted from the inside of the brush holder 8 as shown in FIG. All of them can now be used effectively. As shown in FIG. 3, in the present invention, the end portion of the magnet cover 3 is bent upward by reworking, and the dimension C of the inner peripheral surface thereof is longer than the above-mentioned N, so that the armature 4 can be inserted from below. It is.
本発明によると接着剤を使用することなくしてマグネッ
トが確実に保持できる上に下記の効果を生ずる。According to the present invention, the magnet can be held securely without using an adhesive, and the following effects are also produced.
（１） 組付方向の制約がなくなる。(1) There are no restrictions on the assembly direction.
（２）フラジの有効摩耗長を大きくとれるブラシホルダ
ー形状とすることが可能で耐久性が向上する。(2) It is possible to form a brush holder with a shape that allows for a large effective wear length of the flange, improving durability.
（３）張り出し部が二重構造となるのでマグネットカバ
一端部の強度が大となる。(3) Since the projecting portion has a double structure, the strength of one end of the magnetic cover is increased.
（４） 組付時に他の部品があたって変形するのを防
止できる。(4) It can prevent other parts from being hit and deformed during assembly.
（５）組付は部品アーマチュア等に傷をつけるのを防止
できる。(5) During assembly, damage to parts such as the armature can be prevented.
第１図（Ａ）、（Ｂｌは従来例を示す一部切断平面図お
よび一部切断正面図、第２図は従来例の作用を示す説明
用断面図、第３図は本発明実施の１例を示す説明用一部
切断正面図、第４図は第３図Ｍ部の詳細構造を示す部分
拡大図である。
図中の符号はそれぞれ下記部材を示す。1(A), (Bl is a partially cutaway plan view and a partially cutaway front view showing a conventional example, FIG. 2 is an explanatory cross-sectional view showing the operation of the conventional example, and FIG. 3 is a first embodiment of the present invention. Fig. 4 is a partly enlarged view showing the detailed structure of section M in Fig. 3. Reference numerals in the drawings indicate the following members, respectively.
Claims (1)
圧支持するマグネットカバーを設は該マグネットカバー
の底部内周面の直径寸法をマグネット合着部における内
周面の直径寸法以上としてアーマチュアがヨーク下方よ
り挿入できるようにしたことを特徴とする永久磁石励磁
式スタータ等マグネット保持構造。 ２、上部拡大形状のマグネットカバー全マグネットヲ介
してヨーク内に挿入し弾性体を有するポンチによりプレ
スして下部にＵ字状張出部を形成し、さらに再加工によ
り該Ｕ字状張出部を上方に折曲げて成形したことを特徴
とする特許請求の範囲第１項に記載の永久磁石励磁式ス
タータ等のマグネット保持構造。[Claims] 1. A magnetic cover is provided to suppress and support the magnetic cover disposed on the inner peripheral surface of the yoke, and the diameter of the inner peripheral surface of the bottom part of the magnetic cover is equal to the diameter of the inner peripheral surface at the magnetic joining part. As described above, there is provided a magnet holding structure for a permanent magnet excited starter, etc., characterized in that the armature can be inserted from below the yoke. 2. Insert the upper enlarged magnet cover into the yoke through the entire magnet, press it with a punch having an elastic body to form a U-shaped protrusion at the bottom, and further rework the U-shaped protrusion. 2. A magnet holding structure for a permanent magnet-excited starter or the like according to claim 1, which is formed by bending upward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15205881A JPS5854861A (en) | 1981-09-28 | 1981-09-28 | Magnet holding structure in permanent magnet excited starting motor etc. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15205881A JPS5854861A (en) | 1981-09-28 | 1981-09-28 | Magnet holding structure in permanent magnet excited starting motor etc. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5854861A true JPS5854861A (en) | 1983-03-31 |
| JPS6315826B2 JPS6315826B2 (en) | 1988-04-06 |
Family
ID=15532125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15205881A Granted JPS5854861A (en) | 1981-09-28 | 1981-09-28 | Magnet holding structure in permanent magnet excited starting motor etc. |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5854861A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63220752A (en) * | 1987-03-10 | 1988-09-14 | Mitsuba Electric Mfg Co Ltd | Dc servo-motor of permanent magnet type |
| US4873461A (en) * | 1988-05-13 | 1989-10-10 | Stryker Corporation | Electric motor sterilizable surgical power tool |
| EP1235326A3 (en) * | 2001-02-20 | 2002-10-16 | Kabushiki Kaisha Moric | Dc motor |
| US6509662B2 (en) | 2001-02-20 | 2003-01-21 | Kabushiki Kaisha Moric | DC motor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03124415U (en) * | 1990-03-28 | 1991-12-17 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5656158A (en) * | 1979-10-11 | 1981-05-18 | Honda Motor Co Ltd | Fixing method of magnetic filed magnet to rotary electric machine |
| JPS5656156A (en) * | 1979-10-11 | 1981-05-18 | Honda Motor Co Ltd | Structure for fixing field magnet of rotary electric machine |
-
1981
- 1981-09-28 JP JP15205881A patent/JPS5854861A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5656158A (en) * | 1979-10-11 | 1981-05-18 | Honda Motor Co Ltd | Fixing method of magnetic filed magnet to rotary electric machine |
| JPS5656156A (en) * | 1979-10-11 | 1981-05-18 | Honda Motor Co Ltd | Structure for fixing field magnet of rotary electric machine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63220752A (en) * | 1987-03-10 | 1988-09-14 | Mitsuba Electric Mfg Co Ltd | Dc servo-motor of permanent magnet type |
| US4873461A (en) * | 1988-05-13 | 1989-10-10 | Stryker Corporation | Electric motor sterilizable surgical power tool |
| EP1235326A3 (en) * | 2001-02-20 | 2002-10-16 | Kabushiki Kaisha Moric | Dc motor |
| US6509662B2 (en) | 2001-02-20 | 2003-01-21 | Kabushiki Kaisha Moric | DC motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6315826B2 (en) | 1988-04-06 |
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