JP2017195746A - Stator core structure and manufacturing method thereof - Google Patents

Stator core structure and manufacturing method thereof Download PDF

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JP2017195746A
JP2017195746A JP2016086269A JP2016086269A JP2017195746A JP 2017195746 A JP2017195746 A JP 2017195746A JP 2016086269 A JP2016086269 A JP 2016086269A JP 2016086269 A JP2016086269 A JP 2016086269A JP 2017195746 A JP2017195746 A JP 2017195746A
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slot
tooth
cuff
stator core
covering member
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JP6579029B2 (en
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貴志 山田
Takashi Yamada
貴志 山田
祐治 坂田
Yuji Sakata
祐治 坂田
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Toyota Motor Corp
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Abstract

【課題】スロット被覆部材をスロット内に確実に押し込むことができるステータコア構造及びその製造方法を提供すること。【解決手段】ステータコア構造は、基部となる円環状のヨーク部と、該ヨーク部の円周方向に沿って形成され、内側へ延在するティース部であって、隣接する該ティース部間に形成されるスロットを覆うスロット被覆部材がヨーク部の軸と平行に挿入される、複数のティース部と、該各ティース部のスロット入口端に嵌合し、該ティース部を覆うカフサ部と、を備える。ティース部は、スロット被覆部材の挿入側が幅狭の段差部が形成されている。カフサ部は、ティース部のスロット被覆部材の挿入側端面と段差部を覆う。ティース部の挿入側端面と段差部の間にある角部を覆うカフサ部の少なくとも一部を切欠くティース溝が形成されている。【選択図】図１To provide a stator core structure and a method for manufacturing the same, which can surely push a slot covering member into the slot. A stator core structure includes an annular yoke portion serving as a base portion, and a tooth portion that is formed along the circumferential direction of the yoke portion and extends inward, and is formed between adjacent tooth portions. A slot covering member that covers the slot to be inserted is inserted in parallel with the axis of the yoke portion; and a cuff portion that fits into the slot inlet end of each tooth portion and covers the tooth portion. . The teeth portion is formed with a stepped portion having a narrow width on the insertion side of the slot covering member. The cuff portion covers the insertion side end face and the step portion of the slot covering member of the tooth portion. A tooth groove that cuts out at least a part of a cuff portion that covers a corner portion between the insertion-side end face of the tooth portion and the step portion is formed. [Selection] Figure 1

Description

本発明は、ステータコア構造及びその製造方法に関する。   The present invention relates to a stator core structure and a manufacturing method thereof.

基部となる円環状のヨーク部と、該ヨーク部の円周方向に沿って形成され、内側へ延在する複数のティース部と、該ティース部端面を覆うカフサ部と、を備えるステータコア構造が知られている（例えば、特許文献１参照）。   A stator core structure comprising an annular yoke portion serving as a base portion, a plurality of tooth portions formed along the circumferential direction of the yoke portion and extending inward, and a cuff portion covering the end surface of the tooth portion is known. (For example, refer to Patent Document 1).

特開平０８−０７０５４４号公報Japanese Patent Laid-Open No. 08-070544

上記のようなステータコア構造において、隣接するティース部１０３間に形成されるスロットを覆うスロット被覆部材１０１が、ヨーク部の軸方向へ挿入されるとする。この場合、スロット被覆部材１０１を押すプッシャーが最後の押し込みで、カフサ部１０２に接触する（図４）。このため、スロット被覆部材１０１の後端をティース部１０３の挿入側端面まで押し込むことができず、スロット被覆部材１０１はカフサ部１０２の厚さ分だけ押し込み不足となる。   In the stator core structure as described above, it is assumed that the slot covering member 101 that covers the slot formed between the adjacent tooth portions 103 is inserted in the axial direction of the yoke portion. In this case, the pusher that pushes the slot covering member 101 comes into contact with the cuff portion 102 by the final push (FIG. 4). For this reason, the rear end of the slot covering member 101 cannot be pushed to the insertion side end face of the tooth portion 103, and the slot covering member 101 is insufficiently pushed by the thickness of the cuff portion 102.

本発明は、このような問題点に鑑みてなされたものであり、スロット被覆部材をスロット内に確実に押し込むことができるステータコア構造及びその製造方法を提供することを主たる目的とする。   The present invention has been made in view of such problems, and a main object of the present invention is to provide a stator core structure and a method for manufacturing the stator core structure in which the slot covering member can be surely pushed into the slot.

上記目的を達成するための本発明の一態様は、基部となる円環状のヨーク部と、該ヨーク部の円周方向に沿って形成され、内側へ延在するティース部であって、隣接する該ティース部間に形成されるスロットを覆うスロット被覆部材が前記ヨーク部の軸と平行に挿入される、複数の前記ティース部と、該各ティース部のスロット入口端に嵌合し、該ティース部を覆うカフサ部と、を備えるステータコア構造であって、前記ティース部は、前記スロット被覆部材の挿入側が幅狭の段差部が形成され、前記カフサ部は、前記ティース部の前記スロット被覆部材の挿入側端面と前記段差部を覆い、前記ティース部の挿入側端面と前記段差部の間にある角部を覆う前記カフサ部の少なくとも一部を切欠くティース溝が形成されている、を特徴とするステータコア構造である。
この一態様によれば、プッシャーなどを、ティース溝に沿ってティース部の挿入側端面まで押し込むことができ、スロット被覆部材の後端をティース部の挿入側端面まで押し込むことができる。すなわち、スロット被覆部材をスロット内に確実に押し込むことができる。
この一態様において、前記ティース部は、コア薄板を積層して形成されており、前記カフサ部の両脚部は、前記ティース部の段差部におけるコア薄板の凹凸に引っ掛り、該段差部に嵌合していてもよい。
この一態様において、前記カフサ部の脚部は、前記ティース部のスロット入口端の段差部に嵌合し、前記ティース部のスロット被覆部材の挿入側端面及び前記段差部全体を覆ってもよい。
上記目的を達成するための本発明の一態様は、基部となる円環状のヨーク部と、該ヨーク部の円周方向に沿って形成され、内側へ延在するティース部であって、隣接する該ティース部間に形成されるスロットを覆うスロット被覆部材が前記ヨーク部の軸と平行に挿入される、複数の前記ティース部と、該各ティース部のスロット入口端に嵌合し、該ティース部を覆うカフサ部と、を備え、前記ティース部は、前記スロット被覆部材の挿入側が幅狭の段差部が形成され、前記カフサ部は前記ティース部の前記スロット被覆部材の挿入側端面と前記段差部を覆う、ステータコア構造の製造方法であって、前記ティース部の挿入側端面と前記段差部の間にある角部を覆う前記カフサ部の少なくとも一部を切欠くティース溝を形成する、を特徴とするステータコア構造の製造方法であってもよい。 One aspect of the present invention for achieving the above object is an annular yoke portion serving as a base portion, and a teeth portion formed along the circumferential direction of the yoke portion and extending inward, which are adjacent to each other. A slot covering member that covers a slot formed between the teeth portions is inserted in parallel with the axis of the yoke portion, and the teeth portions are fitted to the slot inlet ends of the teeth portions, and the teeth portions A cuff portion covering the slot, and the teeth portion is formed with a narrow step portion on the insertion side of the slot covering member, and the cuff portion is inserted into the slot covering member of the tooth portion. A tooth groove that covers a side end surface and the stepped portion and that cuts out at least a part of the cuff portion that covers a corner portion between the insertion side end surface of the tooth portion and the stepped portion is formed. The A stator core structure.
According to this aspect, the pusher or the like can be pushed along the teeth groove to the insertion side end surface of the tooth portion, and the rear end of the slot covering member can be pushed to the insertion side end surface of the tooth portion. That is, the slot covering member can be reliably pushed into the slot.
In this aspect, the teeth portion is formed by laminating core thin plates, and both leg portions of the cuff portion are hooked on the unevenness of the core thin plate at the step portion of the teeth portion and are fitted to the step portion. You may do it.
In this aspect, the leg portion of the cuff portion may be fitted to the step portion at the slot inlet end of the tooth portion, and may cover the insertion side end surface of the slot covering member of the tooth portion and the entire step portion.
One aspect of the present invention for achieving the above object is an annular yoke portion serving as a base portion, and a teeth portion formed along the circumferential direction of the yoke portion and extending inward, which are adjacent to each other. A slot covering member that covers a slot formed between the teeth portions is inserted in parallel with the axis of the yoke portion, and the teeth portions are fitted to the slot inlet ends of the teeth portions, and the teeth portions A step portion having a narrow width on the insertion side of the slot covering member, and the cuff portion includes an end surface on the insertion side of the slot covering member of the tooth portion and the step portion. A stator core structure manufacturing method, characterized in that a tooth groove is formed by notching at least a part of the cuff portion covering a corner portion between the insertion side end face of the tooth portion and the stepped portion. Do It may be a method for manufacturing a stator core structure.

本発明によれば、スロット被覆部材をスロット内に確実に押し込むことができるステータコア構造及びその製造方法を提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, the stator core structure which can push in a slot covering member reliably in a slot, and its manufacturing method can be provided.

本発明の一実施形態に係るステータコア構造を示す斜視図である。It is a perspective view which shows the stator core structure which concerns on one Embodiment of this invention. 各コア薄板が極僅かにずれて積層された状態の一例を示す断面図である。It is sectional drawing which shows an example of the state by which each core thin plate was shifted | deviated slightly and was laminated | stacked. ティース部及びカフサ部を一体にしてスロット被覆部材を挿入する状態の一例を示す図である。It is a figure which shows an example of the state which inserts a slot coating | coated member by uniting a teeth part and a cuff part. スロット被覆部材はカフサ部の厚さ分だけ押し込み不足となる一例を示す図である。It is a figure which shows an example in which the slot covering member is insufficiently pushed in by the thickness of the cuff part. スロット被覆部材の後端をティース部の端面まで押し込んだ状態の一例を示す図である。It is a figure which shows an example of the state which pushed the rear end of the slot covering member to the end surface of the teeth part. セグメントコイルの両先端部を相互に逆方向に倒し込んだ状態の一例を示す図である。It is a figure which shows an example of the state which both the front-end | tip parts of the segment coil fell in the mutually reverse direction. 本発明の一実施形態に係るステータコア構造の製造方法のフローを示すフローチャートである。It is a flowchart which shows the flow of the manufacturing method of the stator core structure which concerns on one Embodiment of this invention.

以下、図面を参照して本発明の実施の形態について説明する。図１は、本発明の一実施形態に係るステータコア構造を示す斜視図である。本実施形態に係るステータコア構造１は、基部となる円環状のヨーク部２と、ヨーク部２の円周方向に沿って形成され、内側へ延在する複数のティース部３と、各ティース部３を覆うカフサ部４と、を備えている。   Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a stator core structure according to an embodiment of the present invention. The stator core structure 1 according to the present embodiment includes an annular yoke portion 2 serving as a base, a plurality of tooth portions 3 formed along the circumferential direction of the yoke portion 2 and extending inward, and each tooth portion 3. And a cuff portion 4 covering the same.

本実施形態に係るステータコア５は、例えば、ハイブリッド車両用のモータに用いられる。ステータコア５は、複数枚の銅板からなるコア薄板（例えば、０、２５ｍｍ程度の薄板）を積層して形成されている。ステータコア５は、一体で形成された上記ヨーク部２及び複数のティース部３を有している。隣接するティース部３間には、スロット６が形成されている。スロット６を覆うスロット被覆部材７がヨーク部２の軸と平行にスロット６内に挿入される。このスロット被覆部材７が挿入される、ティース部３のスロット入口端に所定高さの段差部３１が夫々形成されている。このティース部３の段差部３１は、スロット被覆部材７の挿入側が幅狭に形成されている。   The stator core 5 according to the present embodiment is used in, for example, a motor for a hybrid vehicle. The stator core 5 is formed by laminating core thin plates (for example, thin plates of about 0, 25 mm) made of a plurality of copper plates. The stator core 5 has the yoke part 2 and a plurality of teeth parts 3 formed integrally. Slots 6 are formed between adjacent teeth 3. A slot covering member 7 covering the slot 6 is inserted into the slot 6 in parallel with the axis of the yoke portion 2. Step portions 31 having a predetermined height are respectively formed at the slot entrance ends of the tooth portions 3 into which the slot covering members 7 are inserted. The step portion 31 of the tooth portion 3 is formed with a narrow width on the insertion side of the slot covering member 7.

スロット被覆部材７は、例えば、樹脂被覆材であり、ポリエステルからなる薄葉材などが用いられていて、予めスロット６の形状に合わせて熱成形されている。
カフサ部４は、ティース部３のスロット被覆部材７の挿入側端面と段差部３１を覆う。カフサ部４の両脚部４１は、各ティース部３のスロット入口端の段差部３１に嵌合し、該ティース部３の挿入側端面及び段差部３１全体を覆う。カフサ部４は、例えば、樹脂などの絶縁材で形成され、ティース部３の段差部３１に合わせて熱成形されている。スロット６にはセグメントコイル（コイル導線）８が挿入されるが（図６）、カフサ部４の端縁（角部）はこのセグメントコイル８の曲げ起点となり、ステータコア５のティース部３とセグメントコイル８との絶縁を確保する。 The slot covering member 7 is, for example, a resin covering material, and a thin leaf material made of polyester or the like is used. The slot covering member 7 is thermoformed according to the shape of the slot 6 in advance.
The cuff part 4 covers the insertion side end face of the slot covering member 7 of the tooth part 3 and the step part 31. The leg portions 41 of the cuff portion 4 are fitted into the step portions 31 at the slot entrance ends of the respective tooth portions 3 to cover the insertion side end face of the teeth portions 3 and the entire step portion 31. The cuff portion 4 is formed of, for example, an insulating material such as resin, and is thermoformed according to the stepped portion 31 of the tooth portion 3. A segment coil (coil conductor) 8 is inserted into the slot 6 (FIG. 6), but the end edge (corner portion) of the cuff portion 4 serves as a bending start point of the segment coil 8, and the tooth portion 3 of the stator core 5 and the segment coil Insulation with 8 is secured.

カフサ部４の両脚部４１は段差部３１全体を覆うように形成され、段差部３１はこのカフサ部４によって、セグメントコイル８と確実に絶縁される。したがって、この段差部３１に対して、スロット被覆部材７が不要となるため、スロット被覆部材７の簡素化に繋がる。   Both leg portions 41 of the cuff portion 4 are formed so as to cover the entire step portion 31, and the step portion 31 is reliably insulated from the segment coil 8 by the cuff portion 4. Therefore, the slot covering member 7 is not required for the step portion 31, which leads to simplification of the slot covering member 7.

ここで、ステータコア５のティース部３は、上述の如く、コア薄板３２を積層して形成されているが、各コア薄板３２は極僅かにステータコア５の周方向にずれて積層されている（図２）。したがって、カフサ部４の両脚部４１は、ティース部３の段差部３１におけるコア薄板３２のずれによって生じた凹凸に引っ掛りつつ（アンカー効果）、その段差部３１に嵌合し接着されている。このアンカー効果によりカフサ部４をティース部３に確実に固定することができる。図２において、凹凸は理解を容易にするために実際より大きく表現している。   Here, the tooth portion 3 of the stator core 5 is formed by stacking the core thin plates 32 as described above, but the core thin plates 32 are stacked slightly shifted in the circumferential direction of the stator core 5 (see FIG. 2). Therefore, both the leg portions 41 of the cuff portion 4 are fitted and bonded to the step portion 31 while being caught by the unevenness caused by the shift of the core thin plate 32 in the step portion 31 of the tooth portion 3 (anchor effect). The cuff portion 4 can be reliably fixed to the teeth portion 3 by this anchor effect. In FIG. 2, the unevenness is expressed larger than the actual size for easy understanding.

なお、従来、ステータコアのティース部にカフサ部を取り付けた後、その後工程（コイル挿入工程、コイル曲げ工程、コイルひねり工程、コイル溶接工程、紛体ワニス工程など）で、カフサ部の脱落を防止する、特別な脱落防止機構が必要であった。   In addition, conventionally, after the cuff portion is attached to the teeth portion of the stator core, the cuff portion is prevented from falling off in subsequent steps (coil insertion step, coil bending step, coil twisting step, coil welding step, powder varnish step, etc.) A special drop prevention mechanism was required.

これに対し、本実施形態においては、上述の如く、アンカー効果によりカフサ部４をステータコア５のティース部３に確実に固定できる。これにより、上記のような脱落防止機構を必要とせず、工程設備を大幅に簡素化することができる。   On the other hand, in this embodiment, the cuff part 4 can be reliably fixed to the teeth part 3 of the stator core 5 by the anchor effect as described above. Thereby, the above-mentioned drop-off prevention mechanism is not required, and the process equipment can be greatly simplified.

ところで、ステータコア５の体格低減などを目的として、ステータコア５のティース部３にカフサ部４を直接的に成形することが行われている。この場合、ステータコア５のティース部３にカフサ部４を成形した状態で、各スロット６にスロット被覆部材７をヨーク部２の軸方向へ挿入することとなる（図３）。   Incidentally, for the purpose of reducing the physique of the stator core 5, the cuff portion 4 is directly formed on the teeth portion 3 of the stator core 5. In this case, the slot covering member 7 is inserted into each slot 6 in the axial direction of the yoke portion 2 in a state where the cuff portion 4 is formed on the teeth portion 3 of the stator core 5 (FIG. 3).

このとき、従来、スロット被覆部材１０１を押すプッシャーが最後の押し込みで、カフサ部１０２に接触する。このため、スロット被覆部材１０１の後端をティース部１０３の挿入側端面まで押し込むことができず、スロット被覆部材１０１はカフサ部１０２の厚さ分だけ押し込み不足となる（図４）。   At this time, conventionally, the pusher that pushes the slot covering member 101 comes into contact with the cuff portion 102 by the last push. For this reason, the rear end of the slot covering member 101 cannot be pushed down to the insertion side end face of the tooth portion 103, and the slot covering member 101 becomes insufficiently pushed by the thickness of the cuff portion 102 (FIG. 4).

これに対し、本実施形態に係るステータコア構造１において、ティース部３の挿入側端面と段差部３１の間にある角部を覆うカフサ部４の少なくとも一部を切欠くティース溝４２が形成されている（図１）。これにより、プッシャーを、ティース溝４２に沿ってティース部３の挿入側端面まで押し込むことができ、スロット被覆部材７の後端をティース部３の挿入側端面まで押し込むことができる（図５）。すなわち、スロット被覆部材７をスロット６内に確実に押し込むことができる。   On the other hand, in the stator core structure 1 according to the present embodiment, the tooth groove 42 is formed by notching at least a part of the cuff portion 4 covering the corner portion between the insertion side end face of the tooth portion 3 and the step portion 31. (Fig. 1). Thereby, a pusher can be pushed in to the insertion side end surface of the teeth part 3 along the teeth groove | channel 42, and the rear end of the slot coating | coated member 7 can be pushed in to the insertion side end surface of the teeth part 3 (FIG. 5). That is, the slot covering member 7 can be reliably pushed into the slot 6.

各カフサ部４の両端縁には、スロット被覆部材７が挿入される方向に凹状を成すティース溝４２がカフサ部４の長手方向に沿って複数形成されている（図１）。カフサ部４の一方端縁の各ティース溝４２は、他方端縁の各ティース溝４２に対して、カフサ部４の長手方向に互い違いにずれた位置で形成されている。これは、図６に示す如く、セグメントコイル８を、ステータコア５の各スロット６に組み付け、各セグメントコイル８の両先端部を、ステータコア５の周方向で相互に逆方向に倒し込む。このとき、各セグメントコイル８は、カフサ部４の端縁（角部）に当たり、この端縁を支点（曲げ起点）として曲げられる。このため、この各セグメントコイル８の曲げ起点となる部分には、ティース溝４２を設けることができず、上述したようなカフサ部４の長手方向に互い違いにずれた位置に形成されることとなる。   A plurality of teeth grooves 42 having a concave shape in the direction in which the slot covering member 7 is inserted are formed at both end edges of each cuff member 4 along the longitudinal direction of the cuff member 4 (FIG. 1). Each tooth groove 42 at one end edge of the cuff portion 4 is formed at a position that is staggered in the longitudinal direction of the cuff portion 4 with respect to each tooth groove 42 at the other end edge. As shown in FIG. 6, the segment coils 8 are assembled in the slots 6 of the stator core 5, and both end portions of the segment coils 8 are tilted in opposite directions in the circumferential direction of the stator core 5. At this time, each segment coil 8 hits an end edge (corner portion) of the cuff portion 4 and is bent with this end edge as a fulcrum (bending start point). For this reason, the tooth groove 42 cannot be provided in the portion serving as the bending start point of each segment coil 8, and is formed at positions that are staggered in the longitudinal direction of the cuff portion 4 as described above. .

本実施形態において、例えば、ティース溝４２は、カフサ部４の各端縁に、カフサ部４の長手方向に沿って３つずつ略等間隔に形成されている。この場合、各スロット６に対して、合計６つのティース溝４２が設けられていることになる。隣接する各カフサ部４のティース溝４２は、スロット６を挟んで対向するように形成されている。ティース溝４２は、略矩形の断面形状で、ティース部３の挿入側端面までの深さで形成されている。なお、カフサ部４に設けられるティース溝４２の形状、及び数は、これに限定されず、任意でよい。   In the present embodiment, for example, the teeth grooves 42 are formed at substantially equal intervals in three along the longitudinal direction of the cuff member 4 at each end edge of the cuff member 4. In this case, a total of six tooth grooves 42 are provided for each slot 6. The teeth grooves 42 of the adjacent cuff parts 4 are formed so as to face each other with the slot 6 interposed therebetween. The teeth groove 42 has a substantially rectangular cross-sectional shape and is formed with a depth to the insertion side end surface of the tooth portion 3. In addition, the shape and number of the teeth grooves 42 provided in the cuff portion 4 are not limited to this and may be arbitrary.

図７は、本実施形態に係るステータコア構造の製造方法のフローを示すフローチャートである。
複数のティース溝４２を有するカフサ部４を、一体成型などにより複数成形する（ステップＳ１０１）。成形した各カフサ部４の両脚部４１をステータコア５の各ティース部３のスロット入口端の各段差部３１に嵌合させて、各カフサ部４を各ティース部３に組み付ける（ステップＳ１０２）。 FIG. 7 is a flowchart showing a flow of a method for manufacturing a stator core structure according to the present embodiment.
A plurality of cuff parts 4 having a plurality of teeth grooves 42 are formed by integral molding or the like (step S101). The leg portions 41 of the molded cuff members 4 are fitted into the step portions 31 at the slot entrance ends of the teeth 3 of the stator core 5, and the cuff members 4 are assembled to the teeth 3 (step S102).

各スロット被覆部材７をヨーク部の軸方向でティース部３間に形成された各スロット６に挿入する（ステップＳ１０３）。このとき、プッシャーを、ティース溝４２に沿ってティース部３の挿入側端面まで押し込み、スロット被覆部材７の後端をティース部３の挿入側端面まで押し込む（図５）。このように、スロット被覆部材７をスロット６に挿入することで、ステータコア５とカフサ部４を接着でき、さらに、ステータコア５とセグメントコイル８とを絶縁することができる。   Each slot covering member 7 is inserted into each slot 6 formed between the tooth portions 3 in the axial direction of the yoke portion (step S103). At this time, the pusher is pushed along the tooth groove 42 to the insertion side end surface of the tooth portion 3 and the rear end of the slot covering member 7 is pushed to the insertion side end surface of the tooth portion 3 (FIG. 5). In this manner, by inserting the slot covering member 7 into the slot 6, the stator core 5 and the cuff portion 4 can be bonded, and the stator core 5 and the segment coil 8 can be insulated.

各セグメントコイル８を、ステータコア５の各スロット６に組み付け、各セグメントコイル８の両先端部を、ステータコア５の周方向で相互に逆方向に倒し込む（ステップＳ１０４）。   Each segment coil 8 is assembled to each slot 6 of the stator core 5, and both end portions of each segment coil 8 are tilted in opposite directions in the circumferential direction of the stator core 5 (step S104).

なお、本発明は上記実施の形態に限られたものではなく、趣旨を逸脱しない範囲で適宜変更することが可能である。   Note that the present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the spirit of the present invention.

１ ステータコア構造、２ ヨーク部、３ ティース部、４ カフサ部、５ ステータコア、６ スロット、７ スロット被覆部材、８ セグメントコイル、３１ 段差部、３２ コア薄板、４１ 脚部、４２ ティース溝   DESCRIPTION OF SYMBOLS 1 Stator core structure, 2 yoke part, 3 teeth part, 4 cuff part, 5 stator core, 6 slot, 7 slot covering member, 8 segment coil, 31 step part, 32 core thin plate, 41 leg part, 42 teeth groove

Claims (4)

基部となる円環状のヨーク部と、
該ヨーク部の円周方向に沿って形成され、内側へ延在するティース部であって、隣接する該ティース部間に形成されるスロットを覆うスロット被覆部材が前記ヨーク部の軸と平行に挿入される、複数の前記ティース部と、
該各ティース部のスロット入口端に嵌合し、該ティース部を覆うカフサ部と、
を備えるステータコア構造であって、
前記ティース部は、前記スロット被覆部材の挿入側が幅狭の段差部が形成され、
前記カフサ部は、前記ティース部の前記スロット被覆部材の挿入側端面と前記段差部を覆い、
前記ティース部の挿入側端面と前記段差部の間にある角部を覆う前記カフサ部の少なくとも一部を切欠くティース溝が形成されている、
を特徴とするステータコア構造。 An annular yoke portion as a base,
A tooth portion that is formed along the circumferential direction of the yoke portion and extends inward, and a slot covering member that covers a slot formed between the adjacent tooth portions is inserted in parallel with the axis of the yoke portion. A plurality of the tooth portions;
A cuff part that fits into the slot inlet end of each tooth part and covers the tooth part;
A stator core structure comprising:
The teeth portion is formed with a narrow step portion on the insertion side of the slot covering member,
The cuff portion covers the insertion side end surface of the slot covering member of the teeth portion and the step portion,
Teeth grooves that cut out at least a part of the cuff portion covering the corner portion between the insertion side end face of the teeth portion and the stepped portion are formed,
Stator core structure characterized by 請求項１記載のステータコア構造であって、
前記ティース部は、コア薄板を積層して形成されており、
前記カフサ部の両脚部は、前記ティース部の段差部におけるコア薄板の凹凸に引っ掛り、該段差部に嵌合している、
ことを特徴とするステータコア構造。 The stator core structure according to claim 1,
The teeth portion is formed by laminating core thin plates,
Both leg portions of the cuff portion are hooked on the unevenness of the core thin plate in the step portion of the teeth portion, and are fitted to the step portion.
A stator core structure characterized by that. 請求項１又は２記載のステータコア構造であって、
前記カフサ部の脚部は、前記ティース部のスロット入口端の段差部に嵌合し、前記ティース部のスロット被覆部材の挿入側端面及び前記段差部全体を覆っている、
ことを特徴とする、ステータコア構造。 The stator core structure according to claim 1 or 2,
The leg part of the cuff part is fitted to the step part of the slot inlet end of the tooth part, and covers the insertion side end face of the slot covering member of the tooth part and the whole step part.
A stator core structure characterized by that. 基部となる円環状のヨーク部と、
該ヨーク部の円周方向に沿って形成され、内側へ延在するティース部であって、隣接する該ティース部間に形成されるスロットを覆うスロット被覆部材が前記ヨーク部の軸と平行に挿入される、複数の前記ティース部と、
該各ティース部のスロット入口端に嵌合し、該ティース部を覆うカフサ部と、を備え、
前記ティース部は、前記スロット被覆部材の挿入側が幅狭の段差部が形成され、
前記カフサ部は前記ティース部の前記スロット被覆部材の挿入側端面と前記段差部を覆う、ステータコア構造の製造方法であって、
前記ティース部の挿入側端面と前記段差部の間にある角部を覆う前記カフサ部の少なくとも一部を切欠くティース溝を形成する、
を特徴とするステータコア構造の製造方法。 An annular yoke portion as a base,
A tooth portion that is formed along the circumferential direction of the yoke portion and extends inward, and a slot covering member that covers a slot formed between the adjacent tooth portions is inserted in parallel with the axis of the yoke portion. A plurality of the tooth portions;
A cuff portion that fits into the slot inlet end of each tooth portion and covers the teeth portion, and
The teeth portion is formed with a narrow step portion on the insertion side of the slot covering member,
The cuff part is a method for manufacturing a stator core structure, covering the insertion side end face of the slot covering member of the teeth part and the step part,
Forming a tooth groove that cuts out at least a part of the cuff portion covering the corner portion between the insertion-side end face of the tooth portion and the stepped portion;
A manufacturing method of a stator core structure characterized by the above.
JP2016086269A 2016-04-22 2016-04-22 Stator core structure and manufacturing method thereof Expired - Fee Related JP6579029B2 (en)

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JPS54158607A (en) * 1978-06-05 1979-12-14 Hitachi Ltd Armature core for rotary electric machine
US5477096A (en) * 1992-12-16 1995-12-19 Kabushiki Kaisha Sankyo Seiko Seisakusho Laminated core for a motor
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JP2007166759A (en) * 2005-12-13 2007-06-28 Yaskawa Electric Corp Stator, manufacturing method thereof and electric motor using the stator
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