JPS6130452Y2 - - Google Patents
Info
- Publication number
- JPS6130452Y2 JPS6130452Y2 JP7122278U JP7122278U JPS6130452Y2 JP S6130452 Y2 JPS6130452 Y2 JP S6130452Y2 JP 7122278 U JP7122278 U JP 7122278U JP 7122278 U JP7122278 U JP 7122278U JP S6130452 Y2 JPS6130452 Y2 JP S6130452Y2
- Authority
- JP
- Japan
- Prior art keywords
- flange
- insulating resin
- coil
- wound core
- stator
- 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
- 229920005989 resin Polymers 0.000 claims description 34
- 239000011347 resin Substances 0.000 claims description 34
- 239000000463 material Substances 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000010125 resin casting Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Landscapes
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Dc Machiner (AREA)
Description
【考案の詳細な説明】
この考案は偏平形電動機の固定子構造の改良に
関する。[Detailed Description of the Invention] This invention relates to an improvement in the stator structure of a flat motor.
従来の偏平形電動機の固定子構造は第１図に示
す如く、フランジ１上に固定した巻鉄心２の放射
状スロツト３にコイル４を収納し、巻鉄心２の
内、外周側に突出したコイル４端部を絶縁性樹脂
５で包み成形固定している。巻鉄心２の他の端面
は第２図に示す如く複数箇所放射状に設けた切欠
部６に溶接７を行ない巻鉄心２の積層間を一体に
結合し、スポツト溶接８等によりフランジ１上に
巻鉄心２を固定し密着させ巻鉄心２の熱伝導によ
る熱拡散をはかり、かつ前記絶縁性樹脂５は熱伝
導性をよくするために、充てん剤としてたとえば
酸化アルミナ粉末等を混入したエポキシ樹脂等の
絶縁性樹脂５を用い、巻鉄心２の内外周側に突出
したコイル４端部を包み固定している。このよう
な構成の固定子において、コイル４に発生した熱
は一部巻鉄心２からフランジ１へと移動し、一部
は絶縁性樹脂５からフランジ１へと移動する。従
来の固定子構造では第１図に示す如く前記絶縁性
樹脂５と前記フランジ１上面との間が全面密着し
た構造と第３図に示す如く全面的に密着していな
い構造とがある。前記のように熱が移動する事に
よりコイル４の温度上昇が、前者では低い値、後
者では高い値となる。この巻鉄心２をポンプ用電
動機に装着し、電動機を液体中で使用してコイル
４の温度上昇が低い場合は、液体の粘度が高く電
動機の機械的損失が大きく電動機特性が悪くな
る。また電動機を特殊ガス雰囲気で使用した時、
コイル４の温度上昇が高いと特殊ガス雰囲気の温
度が高くなり反応しては都合の悪いガスが反応
し、化学反応により電動機寿命を短かくする虞れ
を生ずる。上記のような変化に対応するため、コ
イル４の温度上昇値は巻鉄心２や絶縁性樹脂５の
寸法を、その都度設計変更により変えなければな
らず巻鉄心２の製作は高価となり多大のロスを生
ずる。 As shown in FIG. 1, the stator structure of a conventional flat motor is such that coils 4 are housed in radial slots 3 of a wound core 2 fixed on a flange 1, and the coils 4 protrude toward the outer periphery of the wound core 2. The ends are wrapped with insulating resin 5 and fixed by molding. As shown in FIG. 2, the other end face of the wound core 2 is welded 7 to the notches 6 provided radially at multiple locations to connect the laminated layers of the wound core 2 together, and then wound onto the flange 1 by spot welding 8 or the like. The iron core 2 is fixed and brought into close contact with the wound core 2 to achieve heat diffusion through heat conduction, and the insulating resin 5 is made of epoxy resin or the like mixed with alumina oxide powder as a filler to improve thermal conductivity. An insulating resin 5 is used to wrap and fix the ends of the coil 4 that protrude toward the inner and outer peripheries of the wound core 2. In the stator having such a configuration, part of the heat generated in the coil 4 moves from the wound core 2 to the flange 1, and part of it moves from the insulating resin 5 to the flange 1. Conventional stator structures include a structure in which the insulating resin 5 and the upper surface of the flange 1 are in full contact as shown in FIG. 1, and a structure in which the insulating resin 5 and the upper surface of the flange 1 are not in full contact as shown in FIG. As the heat moves as described above, the temperature rise of the coil 4 becomes a low value in the former case and a high value in the latter case. When this wound iron core 2 is attached to a pump motor and the motor is used in a liquid and the temperature rise of the coil 4 is low, the viscosity of the liquid is high and the mechanical loss of the motor is large, resulting in poor motor characteristics. Also, when the electric motor is used in a special gas atmosphere,
If the temperature rise of the coil 4 is high, the temperature of the special gas atmosphere will become high, and unsuitable gases will react, causing a risk of shortening the life of the motor due to chemical reactions. In order to cope with the above-mentioned changes, the temperature rise value of the coil 4 has to be changed each time by changing the design of the wound core 2 and the insulating resin 5, making the manufacturing of the wound core 2 expensive and resulting in a large amount of loss. will occur.
また第１図に示すフランジ１上面に絶縁性樹脂
５が全面密着していると、巻鉄心２のコイル４収
納側端面には薄い絶縁樹脂層が形成され、この端
面角に亀裂が発生する。この原因は、樹脂注形後
の硬化段階或いは電動機として使用中の冷熱サイ
クル等夫々の冷却時に、絶縁性樹脂５が密着面積
の大きいフランジ１側に引張られ、この時の応力
が機械的強度の弱い端面角の絶縁樹脂層に集中し
亀裂発生となつて現われる。そしてこの亀裂によ
り巻鉄心２の端面が腐蝕するのを防止するために
塗料を塗る。 Further, if the insulating resin 5 is in full contact with the upper surface of the flange 1 shown in FIG. 1, a thin insulating resin layer will be formed on the end face of the wound core 2 on the side where the coil 4 is accommodated, and cracks will occur at the corners of this end face. The reason for this is that the insulating resin 5 is pulled toward the flange 1 side, which has a large adhesion area, during the curing stage after resin casting or cooling during cooling and heating cycles during use as an electric motor, and the stress at this time increases the mechanical strength. It concentrates on the insulating resin layer with weak end face angles and appears as cracks. Then, paint is applied to prevent the end faces of the wound core 2 from being corroded due to these cracks.
この考案は上記した事情に鑑みて成されたもの
で、コイル温度を所望の温度上昇に管理できるよ
うにした偏平形電動機の固定子を提供する事を目
的とする。 This invention was made in view of the above-mentioned circumstances, and the purpose is to provide a stator for a flat type motor that can control the coil temperature to a desired temperature increase.
以下この考案の一実施例を第４図を参照して説
明するが、従来と同一部分には同一符号で付して
ある。フランジ１上に固定した巻鉄心２の一方の
端面に設けた放射状のスロツト３にコイル４を収
納する。他の端面は第２図に示す如く切欠部６を
溶接７にて巻鉄心２の積層面を一体に結合し、フ
ランジ１上に外周部を溶接８又は複数本のボルト
等（図示しない）で一体に固定する。しかしてこ
の考案においては、樹脂注型の型を組込む段階
で、前記フランジ１の上面であつて巻鉄心２の両
側面近傍からフランジ１の内周および外周側に、
離型材料例えばシリコーンあるいはテフロン等を
所望の面積だけ塗布（第４図の９はこの塗布層を
示している）あるいは塗布焼付した処理後に樹脂
注型を組込む。次に樹脂注型内に溶融した注形材
を注入して、巻鉄心２の両側面から突出するコイ
ル４の端部周面を絶縁性樹脂５で被覆すると共
に、フランジ１上面の前記離型材料の塗布されな
い部分だけ絶縁性樹脂５で密着させた構造とす
る。 An embodiment of this invention will be described below with reference to FIG. 4, in which the same parts as in the prior art are given the same reference numerals. A coil 4 is housed in a radial slot 3 provided on one end face of a wound core 2 fixed on a flange 1. As shown in FIG. 2, the other end face is formed by joining the laminated surfaces of the wound core 2 together by welding 7 at the notch 6, and by welding the outer periphery onto the flange 1 or by using a plurality of bolts (not shown). fixed together. However, in this invention, at the stage of assembling the resin casting mold, from the upper surface of the flange 1 near both sides of the wound core 2 to the inner and outer circumferential sides of the flange 1,
A mold release material such as silicone or Teflon is coated on a desired area (9 in FIG. 4 indicates this coated layer) or after coating and baking, resin casting is incorporated. Next, a molten casting material is injected into the resin casting mold to cover the peripheral surface of the end portion of the coil 4 protruding from both sides of the wound core 2 with an insulating resin 5, and at the same time, the above-mentioned mold release on the upper surface of the flange 1 is performed. The structure is such that only the parts where the material is not applied are tightly adhered with insulating resin 5.
このような構成のこの考案の固定子の作用効果
について説明する。従来絶縁性樹脂５とフランジ
１上面とが全面密着されている構造、あるいは全
面的に密着されていない構造では、コイル４の温
度上昇がおのずと低いかあるいは高いかに決まつ
ていた。しかしこの考案による偏平形電動機の固
定子構造においては、フランジ１上面で巻鉄心２
の両側面近傍のみ絶縁性樹脂５が密着し、前記両
側面近傍からフランジ１の内外周側には離型材料
が付着しているので絶縁性樹脂５は付着しない。
このためコイル４に発生する熱の一部は絶縁性樹
脂５の密着した巻鉄心２の両側面近傍からフラン
ジ１へと移動する。このためフランジ１上面に於
ける絶縁性樹脂５の密着面積の変化によつて、コ
イル４からフランジ１への伝熱抵抗が変化し、こ
の密着面積によりコイル４の温度上昇を所定値に
することができる。これを図によつて説明する
と、第５図は横軸に絶縁性樹脂５とフランジ１上
面の間の密着面積の割合を示し、縦軸にコイル４
の温度を示したものである。第５図のＴLは従来
の固定子構造において前記絶縁性樹脂５とフラン
ジ１上面とが全面密着した構造のコイル４の温
度、ＴHは前記絶縁性樹脂５とフランジ１上面が
全面的に密着していない構造のコイル４の温度で
ある。この考案における固定子構造では絶縁樹脂
５とフランジ１上面との密着面積を任意にとれる
ため、コイル４温度は第５図の曲線Ａの点で任意
に与えられる。たとえば第５図のＴEは密着面積
の割合がαEの時のコイル４の温度である。 The effects of the stator of this invention having such a configuration will be explained. Conventionally, in a structure in which the insulating resin 5 and the upper surface of the flange 1 are entirely in close contact with each other, or in a structure in which they are not entirely in close contact with each other, the temperature rise of the coil 4 is naturally determined to be either low or high. However, in the stator structure of the flat electric motor according to this invention, the wound core 2 is attached to the upper surface of the flange 1.
The insulating resin 5 is in close contact with only the vicinity of both sides of the flange 1, and the mold release material is attached to the inner and outer peripheral sides of the flange 1 from the vicinity of both sides, so that the insulating resin 5 is not attached.
Therefore, a part of the heat generated in the coil 4 moves from the vicinity of both side surfaces of the wound core 2 to which the insulating resin 5 is in close contact to the flange 1. Therefore, the heat transfer resistance from the coil 4 to the flange 1 changes due to a change in the contact area of the insulating resin 5 on the upper surface of the flange 1, and this contact area allows the temperature rise of the coil 4 to be kept at a predetermined value. Can be done. To explain this with the help of a diagram, in FIG.
It shows the temperature of In FIG. 5, T L is the temperature of the coil 4 in a conventional stator structure in which the insulating resin 5 and the upper surface of the flange 1 are in close contact with each other on the entire surface, and T H is the temperature of the coil 4 in which the insulating resin 5 and the upper surface of the flange 1 are in full contact with each other. This is the temperature of the coil 4 that is not in close contact with each other. In the stator structure according to this invention, since the contact area between the insulating resin 5 and the upper surface of the flange 1 can be set arbitrarily, the temperature of the coil 4 can be set arbitrarily at the point of the curve A in FIG. For example, T E in FIG. 5 is the temperature of the coil 4 when the contact area ratio is α E.
このようにコイル４の温度上昇設定値は離型材
料をフランジ１に塗布するだけで簡単にできる。
このため、この巻鉄心２をポンプ用電動機に装着
し、電動機を液体中或いは特殊ガス雰囲気で使用
しても、巻鉄心２が高低のない安定した所定の温
度特性である。この結果液体粘度を高くしたり或
いは反応したら都合の悪いガスの反応もなく電動
機が特殊雰囲気や液体中で安定した運転ができ
る。 In this way, the temperature rise setting value of the coil 4 can be easily set by simply applying the mold release material to the flange 1.
Therefore, even if this wound core 2 is attached to a pump motor and the motor is used in a liquid or in a special gas atmosphere, the wound core 2 has stable and predetermined temperature characteristics without high or low temperature. As a result, the electric motor can operate stably in a special atmosphere or in a liquid without increasing the viscosity of the liquid or causing an inconvenient gas reaction.
またフランジ１上面に於いて巻鉄心２の両側面
近傍からフランジ１の内外周側に絶縁性樹脂５が
付着していない。このため冷却過程の絶縁性樹脂
５がフランジ１の外周側へ引張られるようにして
収縮するのでなく、巻鉄心２の方向へ収縮する。
よつて巻鉄心２端面周辺の絶縁性樹脂５の収縮と
同方向になるので、端面角で発生していた亀裂は
皆無となつた。このため巻鉄心２端面への防錆処
理は不要となつた。 Further, on the upper surface of the flange 1, the insulating resin 5 is not attached to the inner and outer peripheral sides of the flange 1 from the vicinity of both side surfaces of the wound core 2. Therefore, the insulating resin 5 during the cooling process does not contract as if being pulled toward the outer circumference of the flange 1, but instead contracts in the direction of the wound core 2.
As a result, the shrinkage of the insulating resin 5 around the end face of the wound core 2 occurs in the same direction, so that there are no cracks that had occurred at the end face corners. Therefore, anti-rust treatment on the two end faces of the wound core is no longer necessary.
以上述べたこの考案によれば、フランジに離型
材料を塗布だけで絶縁性樹脂とフランジ上面との
密着面積が任意に選択できるので、絶縁樹脂から
フランジへの熱の移動量をコントロールできる。
また絶縁性樹脂がフランジの外周側には付いてい
ないので、冷却過程の絶縁性樹脂がフランジの外
周方向へ収縮せず巻鉄心端面角の亀裂が発生しな
い。これらの結果コイル温度ひいては固定子の温
度上昇を任意にすることができ、偏平形電動機の
用途拡大にも寄与する偏平形電動機の固定子を提
供することができる。 According to this invention described above, the area of close contact between the insulating resin and the upper surface of the flange can be arbitrarily selected by simply applying a mold release material to the flange, so the amount of heat transferred from the insulating resin to the flange can be controlled.
Furthermore, since the insulating resin is not attached to the outer periphery of the flange, the insulating resin does not shrink toward the outer periphery of the flange during the cooling process, and cracks do not occur at the end face angles of the wound core. As a result, it is possible to arbitrarily increase the temperature of the coil and thus the temperature of the stator, and it is possible to provide a stator for a flat motor that contributes to expanding the applications of flat motors.
第１図は従来の偏平形電動機の固定子構造を有
する絶縁性樹脂とフランジ上面が全面密着した固
定子要部の縦断側面図、第２図は第１図の−
線に沿う矢印方向から見た要部断面図、第３図は
従来の偏平形電動機の固定子構造を有する絶縁性
樹脂とフランジ上面が全面的に密着していない固
定子要部の縦断側面図、第４図はこの考案の偏平
形電動機の固定子の一実施例の要部を示す縦断側
面図、第５図は同実施例の作用効果を説明するた
めの特性図である。
１……フランジ、２……巻鉄心、３……スロツ
ト、４……コイル、５……絶縁性樹脂、６……切
欠部、７，８……溶接部、９……離型材料の塗布
層。
Fig. 1 is a longitudinal sectional side view of the main part of the stator of a conventional flat motor with the stator structure in which the insulating resin and the upper surface of the flange are in close contact with each other, and Fig. 2 is the -
A cross-sectional view of the main part seen from the direction of the arrow along the line, and Figure 3 is a longitudinal cross-sectional side view of the main part of the stator of a conventional flat motor with a stator structure in which the insulating resin and the top surface of the flange are not in full contact with each other. FIG. 4 is a longitudinal sectional side view showing a main part of an embodiment of a stator for a flat electric motor of this invention, and FIG. 5 is a characteristic diagram for explaining the effects of the embodiment. 1... Flange, 2... Wound core, 3... Slot, 4... Coil, 5... Insulating resin, 6... Notch, 7, 8... Welded part, 9... Application of mold release material layer.
Claims (1)
が収納されて他方の端面がフランジに固定され、
前記巻鉄心の側面から突出するコイルの端部周面
が注形により絶縁性樹脂で被覆されるとともに、
前記巻鉄心の固定されている面を除く前記コイル
の端部と対向するフランジの上面に前記絶縁性樹
脂が全面密着した偏平形電動機の固定子におい
て、前記コイルの端部と対向するフランジの上面
であつて前記巻鉄心の両側面近傍から前記フラン
ジの内外周側へ注形前に所望の面積だけ離型材料
を塗布し、この離型材料の塗布されないフランジ
の上面にのみ前記絶縁性樹脂を密着させたことを
特徴とする偏平形電動機の固定子。 The coil is housed in a slot on one end face of the wound core, and the other end face is fixed to a flange.
The peripheral surface of the end portion of the coil protruding from the side surface of the wound core is coated with an insulating resin by casting, and
In a stator for a flat electric motor, the insulating resin is fully adhered to the upper surface of the flange opposite to the end of the coil except for the surface to which the wound core is fixed, and the upper surface of the flange opposite to the end of the coil is provided. A mold release material is applied to a desired area from the vicinity of both sides of the wound core to the inner and outer circumferential sides of the flange before casting, and the insulating resin is applied only to the upper surface of the flange where the mold release material is not applied. A stator for a flat electric motor, characterized by being in close contact with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7122278U JPS6130452Y2 (en) | 1978-05-26 | 1978-05-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7122278U JPS6130452Y2 (en) | 1978-05-26 | 1978-05-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54173214U JPS54173214U (en) | 1979-12-07 |
| JPS6130452Y2 true JPS6130452Y2 (en) | 1986-09-05 |
Family
ID=28981767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7122278U Expired JPS6130452Y2 (en) | 1978-05-26 | 1978-05-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6130452Y2 (en) |
-
1978
- 1978-05-26 JP JP7122278U patent/JPS6130452Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54173214U (en) | 1979-12-07 |
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