JPS63148844A - Molded motor - Google Patents
Molded motorInfo
- Publication number
- JPS63148844A JPS63148844A JP29694186A JP29694186A JPS63148844A JP S63148844 A JPS63148844 A JP S63148844A JP 29694186 A JP29694186 A JP 29694186A JP 29694186 A JP29694186 A JP 29694186A JP S63148844 A JPS63148844 A JP S63148844A
- Authority
- JP
- Japan
- Prior art keywords
- metal plate
- bracket
- stator
- motor
- rotor
- 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
- 239000002184 metal Substances 0.000 claims abstract description 23
- 229920003002 synthetic resin Polymers 0.000 claims description 8
- 239000000057 synthetic resin Substances 0.000 claims description 8
- 238000004804 winding Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 229920005989 resin Polymers 0.000 abstract description 8
- 239000011347 resin Substances 0.000 abstract description 8
- 238000000465 moulding Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Motor Or Generator Frames (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、合成樹脂で一体にモールドされた固定子を有
するモールドモータに関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a molded motor having a stator integrally molded with synthetic resin.
従来の技術
この種のモータは、例えば冷蔵庫内の冷気循環用等、湿
気の多い雰囲気中で多く用いられている。2. Description of the Related Art Motors of this type are often used in humid environments, such as for circulating cold air in refrigerators.
第４図はモールドモータの外観図であり、図に於て１は
固定子、２はブラケット、３は回転子、４は機器のシャ
ーシ等への取付孔５を複数個有するフランジ部である。FIG. 4 is an external view of the molded motor. In the figure, 1 is a stator, 2 is a bracket, 3 is a rotor, and 4 is a flange portion having a plurality of mounting holes 5 to the chassis of a device, etc.
従来のモールドモータは第５図に示したような構成であ
る。A conventional molded motor has a configuration as shown in FIG.
即ち、巻線６が施された固定子鉄心７を合成樹脂８にて
モールドし、固定子１を構成すると共に、この固定子１
には機器シャーシ等への取付孔５を有するフランジ部４
も一体に合成樹脂にて形成している。That is, the stator core 7 with the winding 6 is molded with synthetic resin 8 to constitute the stator 1.
has a flange portion 4 having a mounting hole 5 to the equipment chassis, etc.
It is also made of synthetic resin.
このように構成された固定子１の内部には回転子３が収
められており、この回転子の一部分を形成する回転子シ
ャフト９はその一端は前記固定子１の内周部に配置され
たベアリング１０により軸支されている。また２はブラ
ケットであり、その内部には前記回転子シャフト９を軸
支するヘアリしかしながら、上記した従来のモールドモ
ータは以下の様な諸問題点を有していた。A rotor 3 is housed inside the stator 1 configured as described above, and a rotor shaft 9 forming a part of the rotor has one end disposed on the inner circumference of the stator 1. It is pivotally supported by a bearing 10. Reference numeral 2 denotes a bracket, inside which there is a bracket for pivotally supporting the rotor shaft 9. However, the above-mentioned conventional molded motor had the following problems.
即ち、
（ｉ）機器への取付孔５は合成樹脂製のフランジ部４に
設けられているものであるため、その孔周辺の強度が弱
くなるためそのフランジ部の厚さを厚くしなければなら
ず、このモータの取付スペースが大きくなり、また、こ
の取付孔５の内部に螺溝を形成して使用することは、機
器への締め付は強度の点において困難なものであった。That is, (i) Since the mounting hole 5 for the device is provided in the flange portion 4 made of synthetic resin, the strength around the hole is weakened, so the thickness of the flange portion must be increased. First, the mounting space for this motor becomes large, and the use of a screw groove formed inside the mounting hole 5 makes it difficult to tighten the motor to a device in terms of strength.
このため取付孔５には螺溝を設けず、単なる貫通孔とな
し、第６図に示したように各種機器のシャーシ１３との
固定にはポルト１４とナツト１５を用いていたため、取
付作業性も悪いという問題点。For this reason, the mounting hole 5 is not provided with a screw groove, but is simply a through hole, and as shown in FIG. 6, ports 14 and nuts 15 are used to fix various devices to the chassis 13, making the installation work easier. The problem is that it is also bad.
（ｉｔ）回転子を支持するブラケット２は固定子３の内
径部に圧入されて固定されているが、ブラケット５は金
属、このブラケット２が圧入される固定子の部分は合成
樹脂にて形成されているため、高温での使用時に固定子
の内径部へのブラケットの固定が緩くなり、回転子３の
支持が不確実になるという問題点、つまり、金属と樹脂
では樹脂のほうが熱膨張率が大きいためブラケット２と
固定子３の圧入部の締めじろは常温時には適切であって
も、モータの発熱等の理由により高温となった時には、
ブラケット２と固定子３との間の固定が緩くなり、振動
や落下等の衝撃により容易に変位し、甚だしい場合には
ブラケットが固定子より抜は落ちるといったことも発生
する。(it) The bracket 2 that supports the rotor is press-fitted into the inner diameter part of the stator 3 and fixed, but the bracket 5 is made of metal, and the part of the stator into which this bracket 2 is press-fitted is made of synthetic resin. Therefore, when used at high temperatures, the fixation of the bracket to the inner diameter of the stator becomes loose, making the support of the rotor 3 uncertain.In other words, the coefficient of thermal expansion of resin is higher than that of metal. Because of their large size, the tightness of the press-fit parts of the bracket 2 and stator 3 may be appropriate at room temperature, but when the temperature rises due to heat generation from the motor, etc.
The fixation between the bracket 2 and the stator 3 becomes loose, and it is easily displaced by shocks such as vibration or falling, and in extreme cases, the bracket may fall out of the stator.
という問題点である。This is the problem.
問題点を解決するための手段
そこで本発明のモールドモータは、一部に機器への取付
孔が穿設され且つ内周部が回転子支持部材を取り付ける
支持部材取付端面付近まで延びた金属板を固定子鉄心と
共に樹脂にて一体に成型した。Means for Solving the Problems Therefore, the molded motor of the present invention includes a metal plate in which a mounting hole for a device is formed in a part and whose inner circumference extends to the vicinity of the support member mounting end surface to which the rotor support member is attached. It is integrally molded with the stator core from resin.
作 用
本構成により、モールドモータのフランジ部の強度を大
きくすることができると共に、当該部分の厚さを薄くす
ることができる。また、高温になっても金属板により、
ブラケット等の回転子支持部材の取付部分の寸法変化が
小さく押えられる。Effect: With this configuration, the strength of the flange portion of the molded motor can be increased, and the thickness of the portion can be reduced. In addition, even at high temperatures, the metal plate allows
Dimensional changes in the mounting portion of the rotor support member such as the bracket can be kept small.
実 施 例
以下、本発明のモールドータの一実施例を図面を参照し
て説明する。Embodiment Hereinafter, an embodiment of the mold daughter of the present invention will be described with reference to the drawings.
第１図は一実施例のモールドモータの断面図であり、ま
た、第２図は本発明の主要部分を構成する金属板の正面
図である。FIG. 1 is a sectional view of a molded motor according to an embodiment, and FIG. 2 is a front view of a metal plate that constitutes the main part of the present invention.
第１図において、２１は巻線２２が施された固定子鉄心
、２３は第２図にその詳細を示した金属板、２４は前記
固定子鉄心２１と金属板２３とを一体成型した合成樹脂
であり上記２１〜２４の各構成部材により固定子は構成
されている。、２５は回転子、２６は回転子２５の一部
分を構成する回転子シャフト、２７は前記回転子シャフ
ト２６の一端を軸支するベアリング、２８は金属製のブ
ラケットであり、内部には前記回転子シャフト２６を軸
支するベアリング２９が収められている。In FIG. 1, 21 is a stator core to which a winding 22 is applied, 23 is a metal plate whose details are shown in FIG. 2, and 24 is a synthetic resin made by integrally molding the stator core 21 and metal plate 23. The stator is constituted by each of the constituent members 21 to 24 described above. , 25 is a rotor, 26 is a rotor shaft that constitutes a part of the rotor 25, 27 is a bearing that pivotally supports one end of the rotor shaft 26, and 28 is a metal bracket, inside which the rotor is attached. A bearing 29 that pivotally supports the shaft 26 is housed therein.
このブラケット２８とベアリング２９により回転子支持
部材が構成されている。３０は前記ブラケット２８を圧
入する面でありこれ以降は支持部材取付端面と称する。The bracket 28 and the bearing 29 constitute a rotor support member. Reference numeral 30 denotes a surface into which the bracket 28 is press-fitted, and will hereinafter be referred to as a support member attachment end surface.
また、前記金属板２３の外周近傍には、機器への取付孔
３１が４個形成され、しかもこの取付孔３１の内周面に
は螺溝がきられている。なお、この金属板は厚さ２ ｍ
ｍ程度の金属板をプレス加工により打ち抜いて形成し
た。さらに、この金属板２３の内径寸法は第１図に示し
た如く、前記 支持部材取付端面３０の内径寸法（ブラ
ケット２８の外径寸法とほぼ同じ）より若干太き（形成
され、取付孔３１の部分が表出している以外は全て樹脂
にて包囲されている。また、前記固定子はフランジ部３
２を有している。Furthermore, near the outer periphery of the metal plate 23, four mounting holes 31 for mounting the device are formed, and the inner peripheral surface of each of the mounting holes 31 is provided with a threaded groove. The thickness of this metal plate is 2 m.
It was formed by punching out a metal plate with a diameter of approximately 1.5 m. Furthermore, as shown in FIG. The stator is entirely surrounded by resin except for the exposed part.Furthermore, the stator is surrounded by the flange part 3.
It has 2.
このように構成された本実施例のモールドモータは、金
属板２３に穿設した取付孔３１の内周面に螺溝を形成し
ているので従来のようにボルトとナツトにてこのモータ
を機器のシャーシ３４等へ固定しなくても、第３図に示
した如くビス３３にて簡単にシャーシ３４等へ固定でき
る。また、高温下で本モータを使用してもブラケット２
８が圧入される支持部材取付端面３０の部分は、その近
傍まで金属板２３が延びているため、熱膨張が抑制され
、従ってブラケット２８と固定子との圧入状態は然程変
化しない。さらに、フランジ部３２に金属板２３の一部
が位置しているため、当部分の強度はフランジ部が樹脂
だけで形成された従来のモールドモータに比べ格段に大
きくなっている。The molded motor of this embodiment configured as described above has a threaded groove formed on the inner circumferential surface of the mounting hole 31 drilled in the metal plate 23, so that the motor can be attached to the equipment using bolts and nuts as in the past. Even if it is not fixed to the chassis 34 or the like, it can be easily fixed to the chassis 34 or the like using the screws 33 as shown in FIG. Also, even if this motor is used at high temperatures, the bracket 2
Since the metal plate 23 extends to the vicinity of the portion of the support member attachment end surface 30 where the bracket 8 is press-fitted, thermal expansion is suppressed, and therefore the press-fitting state between the bracket 28 and the stator does not change appreciably. Furthermore, since a part of the metal plate 23 is located in the flange part 32, the strength of this part is much greater than that of a conventional molded motor in which the flange part is formed only of resin.
このため、当フランジ部３２の厚さも従来のものに比較
して十分薄くできる。Therefore, the thickness of the flange portion 32 can be made sufficiently thinner than that of the conventional one.
なお、本実施例においては、回転子支持部材をブラケッ
ト２８とベアリング２９により構成したが、ブラケット
を用いず、ベアリング２９の径をそのブラケットの分だ
け大きく形成して、支持部材取付端面に直接圧入しても
なんら本発明の要旨を変更するものではない。In this embodiment, the rotor support member was constructed from the bracket 28 and the bearing 29, but instead of using the bracket, the diameter of the bearing 29 was made larger by the amount of the bracket, and it was directly press-fitted into the support member mounting end surface. However, the gist of the present invention is not changed in any way.
発明の効果
以上、説明したように本発明のモールドモータは一部に
機器への取付孔が穿設され且つ内周部が回転子支持部材
を取り付ける支持部材取付端面付近まで延びた金属板を
固定子鉄心と共に樹脂にて一体に成型したことにより、
モールドモータのフランジ部の強度を大きくすることが
できると共に、当該部分の厚さを薄くすることができる
。このため、各種機器において本モータの占有部分を小
さく抑えることができる。また、支持部材取付端面部分
は、その近傍まで金属板が延びてきているため、高温下
での当該部分のモールド樹脂の熱膨張が抑制され、従っ
て回転子支持部材と固定子との圧入状態は然程変化せず
、耐環境性も従来に比べ格段に向上するという優れた効
果を奏する。As explained above, the molded motor of the present invention fixes a metal plate that has a hole for attaching it to the equipment in a part and whose inner circumference extends to the vicinity of the support member attachment end surface to which the rotor support member is attached. By integrally molding the child core with resin,
The strength of the flange portion of the molded motor can be increased, and the thickness of the portion can be reduced. Therefore, the area occupied by this motor in various devices can be kept small. In addition, since the metal plate extends to the vicinity of the support member attachment end face, the thermal expansion of the molded resin in that part under high temperature is suppressed, and therefore the press-fit state between the rotor support member and the stator is reduced. It has excellent effects in that it does not change much and its environmental resistance is significantly improved compared to the conventional one.
第１図は本発明の１実施例のモールドモータをの断面図
、第２図は同実施例に用いる金属板の正面図、第３図は
本実施例のモールドモータを各種機器のシャーシへ取り
付けた状態を示す要部断面図、第４図はモールドドータ
の斜視図、第５図は従来のモールドモータの断面図、第
６図は従来のモールドモータを各種機器のシャーシへ取
り付けた状態を示す要部断面図である。
２１・・・・・・固定子鉄心、２２・・・・・・巻線、
２３・・・・・・金属板、２４・・・・・・合成樹脂、
２５・・・・・・回転子、２６・・・・・・回転子シャ
フト、２７・・・・・・ヘアリング、２８・・・・・・
ブラケット、２９・・・・・・ヘアリング、３０・・・
・・・支持部材取付端面、３１・・・・・・取付孔、３
２・・・・・・フランジ部、３３・・・・・・ビス、３
４・・・・・・シャーシ代理人の氏名 弁理士 中尾敏
男 ほか１名一
稼 綜
− ぐ）
ぐ） ＱｑFig. 1 is a sectional view of a molded motor according to an embodiment of the present invention, Fig. 2 is a front view of a metal plate used in the same embodiment, and Fig. 3 is a mounting of the molded motor of this embodiment on the chassis of various devices. Fig. 4 is a perspective view of the mold daughter, Fig. 5 is a sectional view of a conventional molded motor, and Fig. 6 shows the conventional molded motor attached to the chassis of various devices. It is a sectional view of the main part. 21... Stator core, 22... Winding wire,
23...Metal plate, 24...Synthetic resin,
25...Rotor, 26...Rotor shaft, 27...Hair ring, 28...
Bracket, 29...Hair ring, 30...
...Support member mounting end surface, 31...Mounting hole, 3
2...flange part, 33...screw, 3
4...Name of chassis agent Patent attorney Toshio Nakao and 1 other person
Claims (2)
付孔が穿設され且つ内周部が回転子支持部材を取り付け
る支持部材取付端面付近まで延びた金属板と、前記固定
子鉄心の内周部に配置される回転子とを備え、前記金属
板の取付孔を含む部分が機器への取付用フランジ部を形
成するようになすと共にこの金属板と前記固定子鉄心と
を合成樹脂にて一体に成型したことを特徴とするモール
ドモータ。(1) a stator core having a winding thereon; a metal plate having a hole for attaching the device to the equipment; a rotor disposed on the inner periphery of the stator core, a portion of the metal plate including the mounting hole forms a flange for mounting to equipment, and the metal plate and the stator core A molded motor characterized by being integrally molded from synthetic resin.
徴とする特許請求の範囲第１項に記載のモールドモータ
。(2) The molded motor according to claim 1, wherein a threaded groove is formed on the inner peripheral surface of the mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61296941A JP2633239B2 (en) | 1986-12-12 | 1986-12-12 | Mold motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61296941A JP2633239B2 (en) | 1986-12-12 | 1986-12-12 | Mold motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63148844A true JPS63148844A (en) | 1988-06-21 |
| JP2633239B2 JP2633239B2 (en) | 1997-07-23 |
Family
ID=17840159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61296941A Expired - Lifetime JP2633239B2 (en) | 1986-12-12 | 1986-12-12 | Mold motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2633239B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0827258A1 (en) * | 1996-02-15 | 1998-03-04 | Seiko Epson Corporation | Device for supporting rotating shaft and small-sized motor |
| US5982057A (en) * | 1998-06-01 | 1999-11-09 | Mitsubishi Denki Kabushiki Kaisha | Molded motor |
| US6002185A (en) * | 1998-06-03 | 1999-12-14 | Mitsubishi Denki Kabushiki Kaisha | Molded motor |
| JP2020167917A (en) * | 2019-03-28 | 2020-10-08 | 日本電産株式会社 | motor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020137385A1 (en) * | 2018-12-28 | 2020-07-02 | ダイキン工業株式会社 | Support structure, and rotating compressor comprising same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5457309U (en) * | 1977-09-30 | 1979-04-20 | ||
| JPS5714647U (en) * | 1980-06-20 | 1982-01-25 |
-
1986
- 1986-12-12 JP JP61296941A patent/JP2633239B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5457309U (en) * | 1977-09-30 | 1979-04-20 | ||
| JPS5714647U (en) * | 1980-06-20 | 1982-01-25 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0827258A1 (en) * | 1996-02-15 | 1998-03-04 | Seiko Epson Corporation | Device for supporting rotating shaft and small-sized motor |
| EP0827258A4 (en) * | 1996-02-15 | 2001-05-09 | Seiko Epson Corp | Device for supporting rotating shaft and small-sized motor |
| US5982057A (en) * | 1998-06-01 | 1999-11-09 | Mitsubishi Denki Kabushiki Kaisha | Molded motor |
| US6002185A (en) * | 1998-06-03 | 1999-12-14 | Mitsubishi Denki Kabushiki Kaisha | Molded motor |
| JP2020167917A (en) * | 2019-03-28 | 2020-10-08 | 日本電産株式会社 | motor |
| CN113424407A (en) * | 2019-03-28 | 2021-09-21 | 日本电产株式会社 | Motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2633239B2 (en) | 1997-07-23 |
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