JPS639261Y2 - - Google Patents
Info
- Publication number
- JPS639261Y2 JPS639261Y2 JP7864780U JP7864780U JPS639261Y2 JP S639261 Y2 JPS639261 Y2 JP S639261Y2 JP 7864780 U JP7864780 U JP 7864780U JP 7864780 U JP7864780 U JP 7864780U JP S639261 Y2 JPS639261 Y2 JP S639261Y2
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- rotor body
- rotor
- magnetic pole
- open end
- 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.)
- Expired
Links
- 239000000696 magnetic material Substances 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 34
- 229910052742 iron Inorganic materials 0.000 description 17
- 238000003780 insertion Methods 0.000 description 14
- 230000037431 insertion Effects 0.000 description 14
- 210000002105 tongue Anatomy 0.000 description 13
- 230000002093 peripheral effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000004323 axial length Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Description
【考案の詳細な説明】
本発明は磁石発電機の回転子に係り、より詳し
くは、金属から成るカツプ形の回転子本体（「鉄
椀」とも称される）に磁石を固定する構造の改良
に係る。[Detailed Description of the Invention] The present invention relates to a rotor for a magnet generator, and more specifically, an improvement in the structure for fixing magnets to a cup-shaped rotor body (also called an "iron bowl") made of metal. Pertains to.
実開昭54−9812号公報には、鉄椀内周面に沿つ
て挿入されたリング状の磁石保持体の磁石挿入部
すなわち磁石ポケツトに複数個の磁石を挿入し、
該磁石保持体の磁石ポケツト間で回転子の軸方向
に延びる楔挿入部に楔を打ち込むことによつて磁
石ポケツト内の磁石を鉄椀内周面に押圧固定し、
更に、鉄椀の開口端に設けられた巻き締め用の舌
片を巻き締めして磁石保持体、楔および磁石を鉄
椀に強固に固定した構造が記載されている。 Japanese Utility Model Application Publication No. 54-9812 discloses that a plurality of magnets are inserted into a magnet insertion portion, that is, a magnet pocket, of a ring-shaped magnet holder inserted along the inner peripheral surface of an iron bowl.
By driving a wedge into a wedge insertion portion extending in the axial direction of the rotor between the magnet pockets of the magnet holder, the magnet in the magnet pocket is pressed and fixed to the inner peripheral surface of the iron bowl,
Furthermore, a structure is described in which a magnet holder, a wedge, and a magnet are firmly fixed to an iron bowl by tightening a tongue piece for tightening provided at the open end of the iron bowl.
上記公開公報に記載の回転子の構造は従来の同
種回転子の構造に比して部品の組立作業をかなり
自動化でき従つて製造コストも低減できるという
利点があるが、磁石保持体、楔および磁石を鉄椀
に固定する手段として、鉄椀開口端の巻き締め用
舌片を巻き締めしているので、該巻き締め用舌片
を形成するために鉄椀開口端を複雑な形状に切削
しなければならず、そのために専用の設備が必要
とされる。また、巻き締め作業も必要である。 The structure of the rotor described in the above-mentioned publication has the advantage that it can considerably automate the assembly work of parts and reduce manufacturing costs compared to the structure of conventional rotors of the same type. As a means of fixing the iron bowl to the iron bowl, a wrapping tongue piece at the opening end of the iron bowl is rolled up, so the opening end of the iron bowl must be cut into a complicated shape in order to form the wrapping tongue piece. Therefore, special equipment is required. In addition, tightening work is also required.
また、鉄椀開口端の舌片を巻き締める方法によ
らずに、磁石を接着剤のみで鉄椀に固定する方
法、および、鉄椀内に磁極片を配置すると共に該
鉄椀と磁極片との間に磁石を配置し、鉄椀と磁極
片とをねじ又はリベツトにより固着することによ
り磁石と磁極片とを鉄椀に固定する方法も知られ
ている。しかし、ねじ又はリベツトによる固定方
法は煩雑なねじ締め又はリベツト止め作業が必要
とされ、また、接着剤を用いる固定方法では、外
部の力（例えば、エンジンの振動とか、修理に際
し回転子を固定子から取外すべく叩いた時の衝撃
等）によつて接着部がはがれ、回転子が破損する
おそれがある。 In addition, there is a method of fixing the magnet to the iron bowl using only adhesive instead of tightening the tongue piece at the open end of the iron bowl, and a method of arranging the magnetic pole piece in the iron bowl and connecting the iron bowl and the magnetic pole piece. It is also known to fix the magnet and the pole piece to the iron bowl by placing a magnet therebetween and fixing the iron bowl and the pole piece with screws or rivets. However, fixing methods using screws or rivets require complicated screw-tightening or riveting work, and fixing methods using adhesives can prevent external forces (such as engine vibrations, etc.) There is a risk that the adhesive may peel off due to the impact (such as when you hit it to remove it) and damage the rotor.
本考案は以上の諸問題を解決せんとするもの
で、その要旨とするところは、回転子本体（すな
わち鉄椀）の開口端に隣接する内周面に環状溝を
形成し、この場合、該環状溝の両側面のうち少く
とも回転子本体開口端に近い方の側面は該開口端
の方に開いた傾斜面とし、該傾斜側面付きの環状
溝に実質上環状の押え板を押込み嵌合させること
によつて磁石、磁極片および磁石保持体を回転子
本体の内面に押付け固定した構造にある。 The present invention aims to solve the above-mentioned problems, and its gist is to form an annular groove on the inner peripheral surface adjacent to the open end of the rotor body (i.e. iron bowl), and in this case, to Of both sides of the annular groove, at least the side closer to the open end of the rotor main body is an inclined surface that opens toward the open end, and a substantially annular presser plate is pushed and fitted into the annular groove with the inclined side. It has a structure in which the magnets, magnetic pole pieces, and magnet holder are pressed and fixed to the inner surface of the rotor body.
上記の構造を採用したことによつて、本考案
は、回転子本体の端面の複雑な切削作業を必要と
せず、巻き締め、ねじ締め、リベツト止め等の煩
雑な固定作業を必要とせずに磁石等の部品の取付
けを簡単かつ確実に行えるようにするという利点
がある。特に、本考案においては、前記環状溝の
両側面のうち少くとも回転子本体の開口端に近い
方の側面は該開口端の方に開いた傾斜面としたの
で、前記環状の押え板は、環状溝内へ容易に嵌り
込み、磁石、磁極片および磁石保持体の軸方向寸
法（個々の部品自体の寸法や組付寸法）に応じて
前記傾斜面の任意の位置に位置決めされるため、
これらの寸法の誤差を吸収して確実に、磁石、磁
極片および磁石保持体に押圧力を付与することが
できる。また、巻き締めによるものに比して、本
考案の構造は巻き締め用舌片を必要としないから
その分だけ回転子本体用の原材料の軸長を短くで
き、材料費の節約によるコスト低下に寄与する。 By adopting the above structure, the present invention eliminates the need for complicated cutting work on the end face of the rotor body, and eliminates the need for complicated fixing work such as winding, screwing, riveting, etc. This has the advantage of making it possible to easily and reliably attach parts such as the like. In particular, in the present invention, at least the side surface of the annular groove that is closer to the open end of the rotor body is an inclined surface that opens toward the open end. Because it easily fits into the annular groove and is positioned at any position on the inclined surface according to the axial dimensions (the dimensions of the individual parts themselves and the assembled dimensions) of the magnet, magnetic pole piece, and magnet holder,
It is possible to absorb these dimensional errors and reliably apply a pressing force to the magnet, magnetic pole piece, and magnet holder. In addition, compared to a method using winding, the structure of the present invention does not require winding tongues, so the axial length of the raw material for the rotor body can be shortened accordingly, resulting in lower costs due to material cost savings. Contribute.
上記の目的、構成および効果は以下の詳細な説
明からより明らかとなるであろう。 The above objects, configurations, and effects will become clearer from the detailed description below.
第１図〜第８図において、鉄板のごとき磁性板
をプレス絞り加工により成形して成るカツプ形の
回転子本体１０内には半径方向に着磁された複数
個のフエライト製円弧状磁石２０および磁極片２
２が磁石ケースとも称される非磁性材料製の磁石
保持体３０によつて所定位置に位置決め保持され
ている。 1 to 8, a cup-shaped rotor body 10 formed by press-drawing a magnetic plate such as an iron plate includes a plurality of arc-shaped ferrite magnets 20 magnetized in the radial direction. magnetic pole piece 2
2 is positioned and held at a predetermined position by a magnet holder 30 made of a non-magnetic material, also called a magnet case.
図示実施例においては、磁石保持体３０は合成
樹脂から成り、回転子本体１０の底壁１１の内面
に接して配置されたリング状の基部３１と、回転
子本体１０の周壁１２の内周面に沿つて基部３１
から軸方向に突出する鳩尾状断面の複数の柱状部
３２とを有する。柱状部３２は円周方向に等間隔
に配置され、それ等の間に磁石収容ポケツト３３
（第４図参照）、が形成され、各磁石２０および磁
極片２２はそれぞれの磁石収容ポケツトに収容さ
れている。 In the illustrated embodiment, the magnet holder 30 is made of synthetic resin, and includes a ring-shaped base 31 disposed in contact with the inner surface of the bottom wall 11 of the rotor body 10 and an inner circumferential surface of the peripheral wall 12 of the rotor body 10. along the base 31
It has a plurality of columnar parts 32 having a dovetail cross-section and projecting in the axial direction from the center. The columnar portions 32 are arranged at equal intervals in the circumferential direction, and magnet receiving pockets 33 are arranged between them.
(see FIG. 4), and each magnet 20 and pole piece 22 is housed in a respective magnet receiving pocket.
より詳しく説明すると、各柱状部３２は鳩尾状
の断面形状を有するために、その各側面は回転子
本体１０の内周面に隣接してほゞ円周方向に向い
た部分３２ａと、この部分３２ａの内側に位置し
かつこの部分３２ａに対してある角度をなす部分
３２ｂとを有し、円周方向に隣り合う各対の柱状
部３２，３２の側面３２ａ，３２ｂ；３２ａ，３
２ｂ間に磁石収容ポケツト３３が形成される。磁
石２０と磁極片２２とを重ねた半径方向の寸法l1
は自由状態の磁石収容ポケツトの半径方向の寸法
l2よりも小であり、従つて、回転子の組立てに当
り磁石２０および磁極片２２を磁石収容ポケツト
３３に挿入するのは容易である。 More specifically, since each columnar portion 32 has a dovetail cross-sectional shape, each side thereof includes a portion 32a adjacent to the inner circumferential surface of the rotor body 10 and oriented substantially in the circumferential direction; side faces 32a, 32b of each pair of columnar parts 32, 32 adjacent in the circumferential direction;
A magnet housing pocket 33 is formed between 2b. Radial dimension of overlapping magnet 20 and pole piece 22 l 1
is the radial dimension of the magnet receiving pocket in the free state
l 2 , and therefore it is easy to insert the magnets 20 and pole pieces 22 into the magnet receiving pockets 33 during rotor assembly.
各柱状部３２の両側面の部分３２ａには磁石２
０の周方向のガタを止めるための押え３２ｃが突
設され、磁石２０として最小寸法のものが磁石収
容ポケツトに挿入された場合にも周方向にガタが
生じないようになつている。 Magnets 2 are attached to portions 32a on both sides of each columnar portion 32.
A presser foot 32c is provided in a protruding manner to prevent the magnet 20 from wobbling in the circumferential direction, so that even when the smallest size magnet 20 is inserted into the magnet storage pocket, no wobbling occurs in the circumferential direction.
鳩尾状断面の各柱状部３２内には両側面の部分
３２ｂ，３２ｂ間に３角形断面の楔挿入穴３２ｄ
が形成され、また、柱状部３２の半径方向内側面
には楔挿入穴３２ｄと連通する縦方向のスリツト
３２ｆが形成されている。楔挿入穴３２ｄは円周
方向の寸法l3を有する。 In each columnar part 32 with a dovetail cross section, a wedge insertion hole 32d with a triangular cross section is provided between the portions 32b on both sides 32b.
A vertical slit 32f is formed on the radially inner surface of the columnar portion 32 and communicates with the wedge insertion hole 32d. The wedge insertion hole 32d has a circumferential dimension l3 .
各柱状部３２の楔挿入穴３２ｄには三角形断面
の楔４０がそれぞれ挿入されている。図示実施例
では、これらの楔４０はアルミニユーム、合成樹
脂等の非磁性材料からリング４１と一体に作られ
てこのリング上で円周方向に等間隔に配置されか
つ軸方向に突出している（第５図）、各楔４０の
円周方向の寸法すなわち幅l4（第６図）は楔挿入
部３２ｄの幅寸法l3よりも幾分大であるが、挿入
を容易にできるようにするために第５図に示すよ
うに先端を先細にしてある。各柱状部３２の楔挿
入穴３２ｄには上記構成の楔４０が押し込まれて
いるため、柱状部３２のスリツト３２ｆは円周方
向に広げられ、その結果、柱状部両側面の部分３
２ｂは外径方向に変位して磁石収容ポケツト３３
内の磁極片２２の当り面２２ａに圧接してこの磁
極片２２を磁石２０の内面に押圧し、磁石２０を
回転子本体１０の内周面に強固に固定している。 A wedge 40 having a triangular cross section is inserted into each wedge insertion hole 32d of each columnar portion 32. In the illustrated embodiment, these wedges 40 are made integrally with a ring 41 from a non-magnetic material such as aluminum or synthetic resin, are arranged on the ring at equal intervals in the circumferential direction, and protrude in the axial direction. 5), the circumferential dimension of each wedge 40, that is, the width l 4 (FIG. 6) is somewhat larger than the width l 3 of the wedge insertion portion 32d, but in order to facilitate insertion. The tip is tapered as shown in Figure 5. Since the wedge 40 having the above structure is pushed into the wedge insertion hole 32d of each columnar portion 32, the slit 32f of the columnar portion 32 is widened in the circumferential direction, and as a result, the portions 3 of both side surfaces of the columnar portion
2b is displaced in the outer diameter direction to form a magnet housing pocket 33.
The contact surface 22a of the inner magnetic pole piece 22 is pressed against the inner surface of the magnet 20, and the magnet 20 is firmly fixed to the inner peripheral surface of the rotor body 10.
以上のように、磁石２０と磁極片２２とを重ね
た寸法l1を磁石収容ポケツト３３の寸法l2よりも
小とし、かつ、柱状部３２の楔挿入穴３２ｄの寸
法l3を楔４０の寸法l4よりも小としておくことに
より、回転子の組立作業すなわち、回転子本体１
０内への磁石２０および磁極片２２の挿入、位置
決めおよび固定が非常に簡単かつ確実に行える。 As described above, the dimension l 1 of the overlapping magnet 20 and magnetic pole piece 22 is made smaller than the dimension l 2 of the magnet housing pocket 33, and the dimension l 3 of the wedge insertion hole 32d of the columnar part 32 is made smaller than the dimension l 2 of the wedge 40. By making the dimension l smaller than 4 , the assembly work of the rotor, that is, the rotor body 1
Insertion, positioning, and fixing of the magnet 20 and magnetic pole pieces 22 into the 0 can be performed very easily and reliably.
上述の構成に加えて、本考案の回転子において
は、回転子本体１０の開口端１３に隣接する内周
面に環状溝１４が形成され、この環状溝１４に第
８図に示すほゞ環状の押え板５０が嵌合してい
る。第７図に明示するように、環状溝１４の両側
面のうち少くとも回転子本体１０の開口端１３に
近い方の側面１４ａは該開口端１３の方に開いた
傾斜面となつており、一方、押え板５０の外周縁
には円周方向に等間隔に円弧状の突出部５０ａが
一体に凸設されている。これらの突出部５０ａの
半径方向外端と押え板５０の中心との間の距離
φAは回転子本体１０の環状溝１４の傾斜側面１
４ａの半径方向最内方端から該本体１０の軸線ま
での距離φBよりも多少大きく設定されている。
従つて、回転子本体１０内に磁石保持体３０、磁
石２０および磁極片２２を挿入した後に楔挿入穴
３２に楔４０を押し込み、しかる後に押え板５０
を回転子本体１０の開口端部に位置させて軸方向
内方に強く押圧すると突出部５０ａは弾性変形し
て環状溝１４内に容易に嵌り込む（スナツプ・イ
ン）。これにより、磁石２０、磁極片２２および
磁石保持体３０は軸方向内方に押圧され、回転子
本体１０に強固に固定される。すなわち、押え板
５０は、磁石２０、磁極片２２および磁石保持体
３０の軸方向寸法に応じて環状溝１４の傾斜側面
１４ａ上の任意の位置に位置決めされるので、傾
斜側面１４ａと押え板５０との組み合わせは磁石
２０、磁極片２２および磁石保持体３０の寸法誤
差を吸収し、これらの部品に確実に押圧力を付与
する。尚、回転子本体１０の開口端１３の内周縁
部を１３ａに示すように面取りしておくことによ
つて、環状溝１４への押え板５０の押し込み嵌合
作業が容易となる。また、第８図に示す押え板５
０の形状に代えて、第９図に示すごときＣ字形又
は割りリング状の押え板５０′を用いてもよい。 In addition to the above-mentioned configuration, in the rotor of the present invention, an annular groove 14 is formed in the inner peripheral surface adjacent to the open end 13 of the rotor body 10, and the annular groove 14 has a substantially annular groove shown in FIG. A presser plate 50 is fitted. As clearly shown in FIG. 7, at least the side surface 14a of the annular groove 14 that is closer to the open end 13 of the rotor body 10 is an inclined surface that opens toward the open end 13. On the other hand, arc-shaped protrusions 50a are integrally provided on the outer peripheral edge of the presser plate 50 at equal intervals in the circumferential direction. The distance φA between the radially outer ends of these protrusions 50a and the center of the presser plate 50 is equal to the inclined side surface 1 of the annular groove 14 of the rotor body 10.
The distance φB from the radially innermost end of 4a to the axis of main body 10 is set to be somewhat larger.
Therefore, after inserting the magnet holder 30, the magnet 20, and the magnetic pole pieces 22 into the rotor body 10, the wedge 40 is pushed into the wedge insertion hole 32, and then the presser plate 50 is inserted.
When the protrusion 50a is placed at the open end of the rotor body 10 and strongly pressed axially inward, the protrusion 50a is elastically deformed and easily fits into the annular groove 14 (snap-in). As a result, the magnets 20, magnetic pole pieces 22, and magnet holders 30 are pressed inward in the axial direction and are firmly fixed to the rotor body 10. That is, since the presser plate 50 is positioned at an arbitrary position on the inclined side surface 14a of the annular groove 14 according to the axial dimensions of the magnet 20, the magnetic pole piece 22, and the magnet holder 30, the presser plate 50 is positioned on the inclined side surface 14a of the annular groove 14. This combination absorbs dimensional errors in the magnet 20, magnetic pole piece 22, and magnet holder 30, and reliably applies a pressing force to these parts. By chamfering the inner circumferential edge of the open end 13 of the rotor body 10 as shown at 13a, it becomes easier to press and fit the presser plate 50 into the annular groove 14. In addition, the presser plate 5 shown in FIG.
0, a C-shaped or split ring-shaped holding plate 50' as shown in FIG. 9 may be used.
従来のこの種の構造の磁石発電機の回転子にお
いては、第１０図に示すように、回転子本体１１
０の開口端には舌部１１３が突設され、この舌部
１１３を巻き締めることにより磁石１２０および
楔リング１４１を軸方向に押圧保持していたが、
回転子本体１１０開口端に舌部１１３を突設する
煩雑な切削作業および舌部１１３を巻き締める作
業が必要とされるのみならず、回転子本体１１０
の原材料としては、本体１１０の軸長に舌部１１
３の長さをプラスした長さのものを用いなければ
ならないから不経済である。しかし、本願のもの
では巻き締め用舌部を用いないから舌部形成作
業、巻き締め作業が不要で、しかも材料費が節約
され、その上、押え板５０又は５０′の押し込み
嵌合により、磁石保持体３０、磁石２０および磁
極片２２の、回転子本体１０への固定作業を非常
に容易に行えるという利点がある。 In the rotor of a conventional magnet generator having this type of structure, as shown in FIG.
A tongue portion 113 was protruded from the open end of the magnet 113, and the magnet 120 and the wedge ring 141 were pressed and held in the axial direction by tightening the tongue portion 113.
Not only is a complicated cutting operation for protruding the tongue portion 113 at the open end of the rotor body 110 and an operation for tightening the tongue portion 113 required, but the rotor body 110
The raw material for the tongue part 11 is the axial length of the main body 110.
It is uneconomical because it is necessary to use a length that is equal to or greater than the length of 3. However, since the device of the present invention does not use a tongue for tightening, there is no need for the tongue forming work or the tightening work, and the material cost is saved.Furthermore, the press-fitting of the holding plate 50 or 50' allows the magnetic There is an advantage that the work of fixing the holder 30, the magnets 20, and the magnetic pole pieces 22 to the rotor body 10 can be performed very easily.
上述の実施例では、磁石２０および磁極片２２
を位置決め保持する構成として、楔挿入穴３２ｄ
を有する柱状部３２を有する形式の磁石保持体３
０と該楔挿入穴３２ｄに挿入される楔４０との組
合わせを用いているが、この組合わせの代りに単
なるリング状のスペーサを用いた場合でも押え板
５０又は５０′と傾斜側面１４ａ付きの環状溝１
４とを用いたことによる効果は得られる。 In the embodiment described above, the magnet 20 and the pole piece 22
As a structure for positioning and holding the wedge insertion hole 32d
A magnet holder 3 having a columnar part 32 having
0 and the wedge 40 inserted into the wedge insertion hole 32d, but even if a simple ring-shaped spacer is used instead of this combination, the holding plate 50 or 50' and the inclined side surface 14a are attached. annular groove 1
The effect of using 4 can be obtained.
従つて、本書中において使用される「磁石保持
体」なる用語はリング状のスペーサを用いた場合
をも含むものと解釈されるべきである。また、リ
ング４１に複数本の楔４０を一体に設けた例を示
したが、各楔４０をそれぞれ単独に設けてもよ
い。 Therefore, the term "magnet holder" used in this document should be interpreted to include the case where a ring-shaped spacer is used. Further, although an example has been shown in which a plurality of wedges 40 are integrally provided on the ring 41, each wedge 40 may be provided independently.
第１図は本考案の磁石発電機の回転子の一実施
例を示す一部断面正面図、第２図は第１図の−
線に沿う縦断面図、第３図は第１図の−線
に沿う縦断面図、第４図は磁石保持体の一部分の
正面図、第５図は楔リングの縦断面図、第６図図
示の楔リングの一部分の背面図、第７図は回転子
本体の開口端に形成された傾斜側面付き環状溝を
示した回転子本体の部分断面図、第８図は押え板
の斜視図、第９図は押え板の変形例を示す斜視
図、第１０図は回転子本体の開口端から突出する
舌部を巻き締めることにより楔リング、磁石およ
び磁石ケースを回転子本体内で軸方向に押圧する
従来の方法を示す部分断面図である。
１０……回転子本体、１３……開口端、１４…
…環状溝、１４ａ……溝の傾斜側面、２０……磁
石、２２……磁極片、３０……磁石保持体。
Fig. 1 is a partially sectional front view showing an embodiment of the rotor of the magnet generator of the present invention, and Fig. 2 is a - of Fig. 1.
3 is a longitudinal sectional view taken along the - line in FIG. 1, FIG. 4 is a front view of a portion of the magnet holder, FIG. 5 is a longitudinal sectional view of the wedge ring, and FIG. FIG. 7 is a partial cross-sectional view of the rotor body showing an annular groove with inclined sides formed at the open end of the rotor body; FIG. 8 is a perspective view of the presser plate; FIG. 9 is a perspective view showing a modification of the holding plate, and FIG. 10 is a perspective view showing a modification of the holding plate, and FIG. 10 shows the wedge ring, magnet, and magnet case being moved axially within the rotor body by tightening the tongue protruding from the open end of the rotor body. FIG. 2 is a partial cross-sectional view showing a conventional method of pressing. 10... Rotor body, 13... Open end, 14...
...Annular groove, 14a...Slanted side surface of the groove, 20...Magnet, 22...Magnetic pole piece, 30...Magnet holder.
Claims (1)
転子本体内に配置されかつ半径方向に着磁されて
いる複数個の磁石および磁極片と、該回転子本体
内に配設されて前記磁石および磁極片を所定位置
に位置決め保持する非磁性材料製の磁石保持体と
を有する磁石発電機の回転子において、前記回転
子本体の開口端に隣接する内周面に環状溝を形成
し、この場合、該環状溝の両側面のうち少くとも
前記回転子本体の開口端に近い方の側面は該開口
端の方に開いた傾斜面とし、該傾斜側面付きの環
状溝に実質上環状の押え板を押込み嵌合させるこ
とによつて前記磁石、磁極片および磁石保持体を
前記回転子本体の内面に押付け固定したことを特
徴とする磁石発電機の回転子。 a cup-shaped rotor body made of a magnetic material; a plurality of magnets and magnetic pole pieces disposed within the rotor body and magnetized in the radial direction; and a magnet holder made of a non-magnetic material that positions and holds the magnetic pole pieces in a predetermined position. In this case, at least the side surface of the annular groove that is closer to the open end of the rotor body is an inclined surface that opens toward the open end, and the annular groove with the inclined side surface is provided with a substantially annular presser foot. A rotor for a magnet generator, characterized in that the magnets, magnetic pole pieces, and magnet holder are pressed and fixed to the inner surface of the rotor main body by press-fitting plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7864780U JPS639261Y2 (en) | 1980-06-06 | 1980-06-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7864780U JPS639261Y2 (en) | 1980-06-06 | 1980-06-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS573378U JPS573378U (en) | 1982-01-08 |
| JPS639261Y2 true JPS639261Y2 (en) | 1988-03-18 |
Family
ID=29441152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7864780U Expired JPS639261Y2 (en) | 1980-06-06 | 1980-06-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS639261Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008199697A (en) | 2007-02-08 | 2008-08-28 | Mitsubishi Electric Corp | Magnet generator |
-
1980
- 1980-06-06 JP JP7864780U patent/JPS639261Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS573378U (en) | 1982-01-08 |
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