JP4889988B2 - Insulator, stator, and brushless motor - Google Patents

Insulator, stator, and brushless motor Download PDF

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JP4889988B2
JP4889988B2 JP2005270214A JP2005270214A JP4889988B2 JP 4889988 B2 JP4889988 B2 JP 4889988B2 JP 2005270214 A JP2005270214 A JP 2005270214A JP 2005270214 A JP2005270214 A JP 2005270214A JP 4889988 B2 JP4889988 B2 JP 4889988B2
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insulator
annular
rotation
connection
core
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JP2006115685A (en
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昌宏 後藤
則幸 鈴木
真史 山村
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Asmo Co Ltd
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Description

本発明は回転電機のコアと巻線とを絶縁するインシュレータ、及びそのインシュレータを備えたステータ、ブラシレスモータに関する。   The present invention relates to an insulator that insulates a core and a winding of a rotating electrical machine, a stator including the insulator, and a brushless motor.

従来、ブラシレスモータ等におけるステータは、コア（ステータコア）のティース部に巻線が巻回されてなる。詳しくは、コアは、放射状に設けられる複数のティース部と各ティース部を径方向外側で連結する環状部とを備え、そのティース部にインシュレータを介して巻線が巻装されることになる。このようなコアとしては、周方向に（ティース部毎に）分割された形状で互いに回動が許容される複数の分割コアから構成されるものがある。このようなステータでは、分割コアを環状とする前に、即ちティース部同士の間隔を広げた状態で巻線を巻装することで、隣り合うティース部が邪魔になることなく、巻線を容易に巻装することができる。   Conventionally, a stator in a brushless motor or the like has a winding wound around a tooth portion of a core (stator core). Specifically, the core includes a plurality of teeth portions provided radially and an annular portion that connects the teeth portions on the radially outer side, and windings are wound around the teeth portions via insulators. As such a core, there is one composed of a plurality of divided cores which are allowed to rotate with respect to each other in a shape divided in the circumferential direction (for each tooth portion). In such a stator, before winding the divided core into an annular shape, that is, by winding the winding in a state in which the interval between the tooth portions is widened, the winding can be easily performed without interfering with the adjacent tooth portions. Can be wound around.

そして、このようなステータ（コア）に設けられるインシュレータは、分割コアの回動を許容する、言い換えると分割コアと一体的に回動可能とされる必要がある。そして、このようなインシュレータとしては、分割コア毎に別体とされた複数のインシュレータ部材が、それぞれ分割コアに装着されてインシュレータを構成するものがある（例えば、特許文献１参照）。
特開２００２−２４７７８８号公報 And the insulator provided in such a stator (core) needs to permit rotation of the split core, in other words, to be rotatable integrally with the split core. As such an insulator, there is one in which a plurality of insulator members separated for each divided core are respectively mounted on the divided core to form an insulator (see, for example, Patent Document 1).
JP 2002-247788 A

しかしながら、上記のような複数のインシュレータ部材をそれぞれ分割コア（コア）に対して装着することは組み付け工数が多くなり面倒であるという問題がある。このことは、組み付け時間を増大させるとともに、組み付けコストを増大させる原因となる。また、巻線を巻装するために分割コアを回動するため、製造時に分割コア同士の連結が維持されていないと円滑な製造を行うことができない。   However, it is troublesome to attach a plurality of insulator members as described above to the divided cores (cores), which increases the number of assembly steps. This increases the assembling time and increases the assembling cost. Further, since the split cores are rotated in order to wind the windings, smooth manufacturing cannot be performed unless the connection between the split cores is maintained during manufacturing.

本発明は、上記問題を解決するためになされたものであって、その目的は、簡単な構成としながら、容易にコアに装着することができるとともに、巻線の巻装が容易であるインシュレータおよびそのインシュレータを用いたステータ、ブラシレスモータを提供することにある。   The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an insulator that can be easily mounted on a core and can be easily wound with a winding while having a simple configuration. The object is to provide a stator and a brushless motor using the insulator.

上記課題を解決するため、請求項１に記載の発明は、環状部と該環状部から径方向内側に延びるティース部とを持つコアを周方向にティース部毎に分割した分割コアに装着されるインシュレータであって、前記ティース部を覆うコアティース被覆部と、前記コアティース被覆部から前記環状部に沿って延びる環状被覆部と、前記インシュレータとそのインシュレータに隣接する他の前記インシュレータとの相対回動を可能に連結する連結回動部と、を備え、前記連結回動部は、前記環状被覆部の周方向端部に備えられた軸方向に突出する連結凸部、または、軸方向に窪み連結凸部と軸方向に嵌合する連結凹部を備え、前記連結凸部はその外周に円弧形状をなす回動案内面を有し、前記連結凹部はその内周に円弧形状をなす回動案内面を有し、隣接する両インシュレータにおいて前記連結凹部に前記連結凸部が嵌合した状態で両インシュレータを相対回動させるときそれらの回動案内面により連結凸部と連結凹部との回動案内が可能に構成される。
請求項２に記載の発明は、請求項１に記載のインシュレータにおいて、前記連結回動部は、前記環状部の径方向幅中心より外径側に回動中心を有する。
請求項３に記載の発明は、請求項１または２に記載のインシュレータにおいて、前記連結凸部は、前記環状被覆部から前記分割コア側に向けて突出する。 In order to solve the above problems, the invention according to claim 1 is mounted on a split core obtained by dividing a core having an annular portion and a tooth portion extending radially inward from the annular portion into each tooth portion in the circumferential direction. An insulator, a core teeth covering portion that covers the teeth portion, an annular covering portion that extends from the core teeth covering portion along the annular portion, and a relative rotation of the insulator and the other insulator adjacent to the insulator. A connecting rotation portion that allows movement, and the connection rotation portion is an axially protruding connection protrusion provided at a circumferential end of the annular covering portion, or a depression in the axial direction. comprising a consolidated recesses that fit match to the connecting boss and axially said a connecting projections rotation guiding surface forming an arc shape on the outer periphery thereof, said connecting recess of times an arc shape on the inner peripheral thereof A moving guide surface, When both insulators are rotated relative to each other in contact with both insulators in a state in which the connecting protrusions are fitted to the connecting recesses, the rotation guide surfaces are configured to enable rotation guidance between the connecting protrusions and the connecting recesses. .
According to a second aspect of the present invention, in the insulator according to the first aspect, the connecting rotation portion has a rotation center on the outer diameter side from the radial width center of the annular portion.
According to a third aspect of the present invention, in the insulator according to the first or second aspect, the connecting convex portion protrudes from the annular covering portion toward the divided core.

請求項４に記載の発明は、環状部と該環状部から径方向内側に延びるティース部とを持つコアを周方向にティース部毎に分割した分割コアに装着されるインシュレータであって、前記ティース部を覆うコアティース被覆部と、前記コアティース被覆部から前記環状部に沿って延びる環状被覆部と、前記インシュレータとそのインシュレータに隣接する他の前記インシュレータとの相対回動を可能に連結する連結回動部と、を備え、前記連結回動部は、前記環状被覆部の周方向端部に備えられた軸方向に突出する連結凸部、または、軸方向に窪み連結凸部と嵌合する軸方向に窪む連結凹部を備え、前記環状部の径方向幅中心より外径側に回動中心を有し、前記連結凸部は、前記環状被覆部から前記分割コア側に向けて突出する。
請求項５に記載の発明は、請求項４に記載のインシュレータにおいて、前記連結凸部又は前記連結凹部は、隣接するインシュレータに備えられた連結凹部又は連結凸部との回動を案内する回動案内面を備える。 The invention according to claim 4 is an insulator attached to a split core obtained by dividing a core having an annular part and a tooth part extending radially inward from the annular part into each tooth part in the circumferential direction, A core teeth covering portion that covers a portion; an annular covering portion that extends from the core teeth covering portion along the annular portion; and a coupling that enables relative rotation between the insulator and another insulator adjacent to the insulator. A rotating part, and the connecting rotating part is fitted with a connecting convex part protruding in the axial direction provided at a circumferential end of the annular covering part or a concave connecting convex part in the axial direction. A connecting recess that is recessed in the axial direction has a rotation center on the outer diameter side from the radial width center of the annular portion, and the connecting convex portion protrudes from the annular covering portion toward the split core side. .
According to a fifth aspect of the present invention, in the insulator according to the fourth aspect , the connecting convex portion or the connecting concave portion is configured to guide rotation with a connecting concave portion or a connecting convex portion provided in an adjacent insulator. A guide surface is provided.

請求項６に記載の発明は、環状部と該環状部から径方向内側に延びるティース部とを持つコアを周方向にティース部毎に分割した分割コアに装着されるインシュレータであって、前記ティース部を覆うコアティース被覆部と、前記コアティース被覆部から前記環状部に沿って延びる環状被覆部と、前記インシュレータとそのインシュレータに隣接する他の前記インシュレータとの相対回動を可能に連結する連結回動部と、を備え、前記連結回動部は、前記環状被覆部の周方向端部に備えられた軸方向に突出する連結凸部、または、軸方向に窪み連結凸部と嵌合する軸方向に窪む連結凹部を備え、前記環状部の径方向幅中心より外径側に回動中心を有し、前記連結凸部又は前記連結凹部は、隣接するインシュレータに備えられた連結凹部又は連結凸部との回動を案内する回動案内面を備え、前記回動案内面は半円弧未満の円弧面である。
請求項７に記載の発明は、環状部と該環状部から径方向内側に延びるティース部とを持つコアを周方向にティース部毎に分割した分割コアに装着されるインシュレータであって、前記ティース部を覆うコアティース被覆部と、前記コアティース被覆部から前記環状部に沿って延びる環状被覆部と、前記インシュレータとそのインシュレータに隣接する他の前記インシュレータとの相対回動を可能に連結する連結回動部と、を備え、前記連結回動部は、前記環状被覆部の周方向端部に備えられた軸方向に突出する連結凸部、または、軸方向に窪み連結凸部と嵌合する軸方向に窪む連結凹部を備え、前記環状部の径方向幅中心より外径側に回動中心を有し、前記連結凸部又は前記連結凹部は、隣接するインシュレータに備えられた連結凹部又は連結凸部との回動を案内する回動案内面を備え、前記連結凸部は、前記回動案内面の軸方向に沿った方向の一部に、前記連結凸部の突出方向と直交する方向に突出する鉤凸部を備え、前記連結凹部は、前記鉤凸部に応じた形状を備えた軸方向に延びる溝である鉤凹部を備える。 The invention according to claim 6 is an insulator attached to a split core obtained by dividing a core having an annular part and a tooth part extending radially inward from the annular part into each tooth part in the circumferential direction, A core teeth covering portion that covers a portion; an annular covering portion that extends from the core teeth covering portion along the annular portion; and a coupling that enables relative rotation between the insulator and another insulator adjacent to the insulator. A rotating part, and the connecting rotating part is fitted with a connecting convex part protruding in the axial direction provided at a circumferential end of the annular covering part or a concave connecting convex part in the axial direction. A connecting recess recessed in the axial direction, having a rotation center on the outer diameter side from the radial width center of the annular portion, and the connecting protrusion or the connecting recess is a connecting recess provided in an adjacent insulator or Communicating Includes a rotation guiding surface for guiding the rotation of the convex portion, the rotating guide surface is arcuate surface of less than half an arc.
The invention according to claim 7 is an insulator attached to a split core obtained by dividing a core having an annular portion and a tooth portion extending radially inward from the annular portion into each tooth portion in the circumferential direction, and the teeth A core teeth covering portion that covers a portion; an annular covering portion that extends from the core teeth covering portion along the annular portion; and a coupling that enables relative rotation between the insulator and another insulator adjacent to the insulator. A rotating part, and the connecting rotating part is fitted with a connecting convex part protruding in the axial direction provided at a circumferential end of the annular covering part or a concave connecting convex part in the axial direction. A connecting recess recessed in the axial direction, having a rotation center on the outer diameter side from the radial width center of the annular portion, and the connecting protrusion or the connecting recess is a connecting recess provided in an adjacent insulator or Communicating Includes a rotation guiding surface for guiding the rotation of the convex portion, the connecting projections are a part of the direction along the axial direction of the rotating guide surface, a direction orthogonal to the projecting direction of the connecting projections The connecting concave portion includes a collar concave portion that is a groove extending in the axial direction and having a shape corresponding to the collar convex portion.

請求項８に記載の発明は、請求項７に記載のインシュレータにおいて、前記鉤凸部は、前記連結凸部の前記回動案内面上に形成され、前記回動中心と前記環状部を形成する円弧の中心とを結ぶ線上以外にその突出方向端部を有する。 The invention according to claim 8 is the insulator according to claim 7 , wherein the flange protrusion is formed on the rotation guide surface of the connection protrusion, and forms the rotation center and the annular portion. In addition to the line connecting the center of the arc, it has an end in the protruding direction.

請求項９に記載の発明は、請求項７または８に記載のインシュレータにおいて、前記鉤凹部は、前記連結凹部の前記回動案内面上に形成され、前記回動中心と前記環状部とを形成する円弧の中心を結ぶ線上以外にその底を有する。 The invention according to claim 9 is the insulator according to claim 7 or 8 , wherein the flange recess is formed on the rotation guide surface of the connection recess and forms the rotation center and the annular portion. It has its bottom other than on the line connecting the centers of the arcs.

請求項１０に記載の発明は、請求項１〜３，５〜９のいずれか１項に記載のインシュレータにおいて、前記回動案内面は、前記回動中心を中心とした円弧面状に形成され、前記回動案内面は、少なくとも前記回動中心から前記環状被覆部の径方向外周までの距離よりも大きな半径を備える円弧から形成される。
請求項１１に記載の発明は、請求項１〜１０のいずれか１項に記載のインシュレータを備えたステータ。 A tenth aspect of the present invention is the insulator according to any one of the first to third to fifth to ninth aspects , wherein the rotation guide surface is formed in a circular arc shape centered on the rotation center. The rotation guide surface is formed of an arc having a radius larger than at least the distance from the rotation center to the outer periphery in the radial direction of the annular covering portion .
The invention according to claim 11, comprising an insulator according to any one of claims 1-10 stator.

請求項１２に記載の発明は、請求項１〜１０のいずれかに１項に記載のインシュレータを備えたモータ。
（作用）
請求項１に記載の発明によれば、軸方向に突出した回動軸を備えることができる。回動軸によって連結されることにより、複数の分割コアに対して同時に装着させることが容易になる。また、回動軸を備えることによって、ティース部の突出方向の相対角度を変化させることができる。よって、ティース部先端を径方向内側に向け分割コアを円環状とした完成形のステータ状態のときよりも巻線の巻装されるティース部間の距離を広くすることが可能となり、巻線の巻装が容易となる。また、連結回動部に連結凸部又は連結凹部が形成されているため、回動軸とするための新たな部材を必要としない。よって、製造工程を複雑にすることなく回動軸を備えることが可能となる。また、回動案内面によって連結凸部及び連結凹部の径方向および周方向の変位が規制される。よって、回動中心が固定され、回動を容易にすることができる。
請求項２に記載の発明によれば、回動中心を環状部の径方向幅中心より外側に配設することによって、回動中心からティース部の中心線までの距離は長くなる。よって、各分割コアのティース部の中心線が平行になるように配列したとき、隣接する分割コア同士のティース部の距離が大きくなり巻線の巻装がさらに容易となる。
請求項３に記載の発明によれば、組み付け後、連結凸部は連結凹部およびコア（分割コア）に囲まれる。よって、運転時に折損した場合でも、折損片が離脱する恐れを低減することができる。また、他の部材等とが接触することを抑制することが可能となり、連結凸部の折損する恐れを低減することができる。 Invention according to claim 1 2, the motor having an insulator according to item 1 to claim 1-10.
(Function)
According to the first aspect of the present invention, the rotating shaft protruding in the axial direction can be provided. By being connected by the rotating shaft, it becomes easy to attach to a plurality of divided cores simultaneously. Moreover, the relative angle | corner of the protrusion direction of a teeth part can be changed by providing a rotating shaft. Therefore, it is possible to increase the distance between the tooth portions around which the windings are wound, compared to the completed stator state in which the tip of the teeth portion is radially inward and the split core is annular. Winding becomes easy. Moreover, since the connection convex part or the connection recessed part is formed in the connection rotation part, the new member for setting it as a rotation axis is not required. Therefore, it becomes possible to provide a rotating shaft without complicating the manufacturing process. Further, the rotation guide surface restricts the radial displacement and circumferential displacement of the coupling convex portion and the coupling concave portion. Therefore, the rotation center is fixed and rotation can be facilitated.
According to the invention described in claim 2, by arranging outside the radial width center of the ring-shaped portion of the rotation center, the distance from the rotation center to the center line of the tooth portion becomes longer. Therefore, when arranged so that the center lines of the tooth portions of each divided core are parallel, the distance between the tooth portions of adjacent divided cores is increased, and winding of the winding is further facilitated.
According to the invention described in claim 3, after the assembly, the connecting convex portion is surrounded by the connecting concave portion and the core (divided core). Therefore, even when it breaks at the time of driving | operation, a possibility that a broken piece may detach | leave can be reduced. Moreover, it becomes possible to suppress that another member etc. contact, and a possibility that a connection convex part may be broken can be reduced.

請求項４，６，７に記載の発明によれば、軸方向に突出した回動軸を備えることができる。回動軸によって連結されることにより、複数の分割コアに対して同時に装着させることが容易になる。また、回動軸を備えることによって、ティース部の突出方向の相対角度を変化させることができる。よって、ティース部先端を径方向内側に向け分割コアを円環状とした完成形のステータ状態のときよりも巻線の巻装されるティース部間の距離を広くすることが可能となり、巻線の巻装が容易となる。また、連結回動部に連結凸部又は連結凹部が形成されているため、回動軸とするための新たな部材を必要としない。よって、製造工程を複雑にすることなく回動軸を備えることが可能となる。また、回動中心を分割コア環状部の径方向幅中心より外側に配設することによって、回動中心からティース部の中心線までの距離は長くなる。よって、各分割コアのティース部の中心線が平行になるように配列したとき、隣接する分割コア同士のティース部の距離が大きくなり巻線の巻装がさらに容易となる。
請求項４に記載の発明によれば、組み付け後、連結凸部は連結凹部およびコア（分割コア）に囲まれる。よって、運転時に折損した場合でも、折損片が離脱する恐れを低減することができる。また、他の部材等とが接触することを抑制することが可能となり、連結凸部の折損する恐れを低減することができる。
請求項５〜７に記載の発明によれば、回動案内面によって連結凸部及び連結凹部の径方向および周方向の変位が規制される。よって、回動中心が固定され、回動を容易にすることができる。 According to invention of Claim 4,6,7, the rotating shaft protruded to the axial direction can be provided. By being connected by the rotating shaft, it becomes easy to attach to a plurality of divided cores simultaneously. Moreover, the relative angle | corner of the protrusion direction of a teeth part can be changed by providing a rotating shaft. Therefore, it is possible to increase the distance between the tooth portions around which the windings are wound, compared to the completed stator state in which the tip of the teeth portion is radially inward and the split core is annular. Winding becomes easy. Moreover, since the connection convex part or the connection recessed part is formed in the connection rotation part, the new member for setting it as a rotation axis is not required. Therefore, it becomes possible to provide a rotating shaft without complicating the manufacturing process. Moreover, the distance from the rotation center to the center line of the teeth portion is increased by disposing the rotation center outside the center in the radial direction of the split core annular portion. Therefore, when arranged so that the center lines of the tooth portions of each divided core are parallel, the distance between the tooth portions of adjacent divided cores is increased, and winding of the winding is further facilitated.
According to the invention described in claim 4, after the assembly, the connecting convex portion is surrounded by the connecting concave portion and the core (divided core). Therefore, even when it breaks at the time of driving | operation, a possibility that a broken piece may detach | leave can be reduced. Moreover, it becomes possible to suppress that another member etc. contact, and a possibility that a connection convex part may be broken can be reduced.
According to the invention described in claims 5 to 7 , radial displacement and circumferential displacement of the coupling convex portion and the coupling concave portion are regulated by the rotation guide surface. Therefore, the rotation center is fixed and rotation can be facilitated.

請求項６に記載の発明によれば、連結凸部を形成する円弧の半径を許容される最大長とすることができる。よって、連結凸部の断面積が広くなるため連結凸部の強度が更に増し、その折損を防止することができる。 According to invention of Claim 6 , the radius of the circular arc which forms a connection convex part can be made into allowable maximum length. Therefore, since the cross-sectional area of the connecting convex portion is increased, the strength of the connecting convex portion is further increased, and breakage thereof can be prevented.

請求項７に記載の発明によれば、鉤凸部と鉤凹部とが同軸上に並ばない限り、鉤凸部は連結凹部を形成する部材に当接するため軸方向の相対変位が規制され挿入若しくは挿抜が不能となる。ここで、鉤凸部と鉤凹部とは回動案内面上に形成されているため、それらの位置はインシュレータの相対回動角度およびティース部の突出方向と関係している。よって、鉤凸部と鉤凹部とが同軸上に並ばない限り、連結回動部の連結は維持され、インシュレータの配列状態の変更が容易となり、巻線の巻装を容易とすることができる。 According to the seventh aspect of the present invention, as long as the ridge convex portion and the ridge concave portion are not aligned on the same axis, the ridge convex portion contacts the member forming the connection concave portion, so that the relative displacement in the axial direction is restricted and inserted or Insertion / extraction becomes impossible. Here, since the heel protrusion and the heel recess are formed on the rotation guide surface, their positions are related to the relative rotation angle of the insulator and the protruding direction of the tooth portion. Therefore, as long as the ridge protrusions and the ridge recesses are not aligned on the same axis, the connection of the connecting and rotating portions is maintained, the change of the arrangement state of the insulators is facilitated, and the winding of the winding can be facilitated.

請求項８に記載の発明によれば、連結凸部の回動案内面上に環状被覆部の径方向を除く方向に突出する鉤凸部を備えることができる。環状被覆部の内周側には巻線の巻装されるティース部があり、また、その外周側にはハウジングに当接しているため、連結凸部および鉤凸部の径方向幅は、環状被覆部の径方向幅に収まる必要がある。よって、連結凸部と鉤凸部との径方向幅は制限されているため、鉤凸部を径方向に突出させると、連結凸部の径方向幅を小さくする必要がある。従って、本発明によれば、連結凸部の断面積を低減させることなく鉤凸部を備えることができる。 According to the eighth aspect of the present invention, it is possible to provide the ridge convex portion protruding in the direction excluding the radial direction of the annular covering portion on the rotation guide surface of the connecting convex portion. There is a tooth portion on which the winding is wound on the inner peripheral side of the annular covering portion, and since the outer peripheral side is in contact with the housing, the radial width of the connecting convex portion and the hook convex portion is annular. It is necessary to fit within the radial width of the covering portion. Therefore, since the radial width of the connecting convex portion and the ridge convex portion is limited, it is necessary to reduce the radial width of the connecting convex portion when the ridge convex portion is protruded in the radial direction. Therefore, according to the present invention, it is possible to provide the ridge convex portion without reducing the cross-sectional area of the connecting convex portion.

請求項９に記載の発明によれば、連結凹部の回動案内面上に環状被覆部の径方向を除く方向に窪む鉤凹部を備えることができる。環状被覆部の内周側には巻線の巻装されるティース部があり、また、その外周側にはハウジングに当接しているため、環状被覆部の径方向幅は制限されている。このため、鉤凹部を径方向に窪ませると、連結凹部を形成する部材の径方向の断面積が小さくなる。従って、本発明によれば、連結凹部を形成する部材の断面積を低減させることなく鉤凸部を備えることができる。よって、連結凹部に強度を備えることが可能となり、折損する恐れを低減することができる。 According to the ninth aspect of the present invention, it is possible to provide the collar recess that is recessed in the direction excluding the radial direction of the annular covering portion on the rotation guide surface of the connection recess. There is a tooth portion around which the winding is wound on the inner peripheral side of the annular covering portion, and since the outer peripheral side is in contact with the housing, the radial width of the annular covering portion is limited. For this reason, if a collar recessed part is dented in radial direction, the cross-sectional area of the radial direction of the member which forms a connection recessed part will become small. Therefore, according to the present invention, it is possible to provide the ridge convex portion without reducing the cross-sectional area of the member forming the connection concave portion. Therefore, it is possible to provide the connecting recess with strength and reduce the risk of breakage.

請求項１０に記載の発明によれば、連結凸部を環状部に収まる円柱状に形成した場合よりもその断面積を大きくすることができる。よって、連結凸部の強度が増し、その折損を防止することができる。 According to invention of Claim 10 , the cross-sectional area can be enlarged rather than the case where a connection convex part is formed in the column shape which fits in an annular part. Therefore, the strength of the connecting convex portion can be increased and the breakage thereof can be prevented .

請求項１１に記載の発明によれば、簡単な構成としながら、容易にコアに装着することができるとともに、巻線の巻装が容易であり、連結部の強度の高いインシュレータを備えたステータを得ることができる。 According to the eleventh aspect of the present invention, there is provided a stator including an insulator having a simple structure and capable of being easily attached to the core, being easy to wind the winding, and having a high strength connecting portion. Obtainable.

請求項１２に記載の発明によれば、簡単な構成としながら、容易にコアに装着することができるとともに、巻線の巻装が容易であり、連結部の強度の高いインシュレータを備えたモータを得ることができる。 According to the invention of claim 1 2, with a simple configuration, it is possible to easily mount the core, it is easy to wound windings, motors with high strength of the connecting portion insulator Can be obtained.

本発明によれば、簡単な構成としながら、容易にコアに装着することができるとともに、巻線の巻装が容易であるインシュレータおよびそのインシュレータを備えたステータ、引いては、ブラシレスモータを得ることができる。   According to the present invention, an insulator that can be easily mounted on a core and can be easily wound with a winding, and a stator including the insulator, and thus a brushless motor can be obtained with a simple configuration. Can do.

以下、本発明を具体化した一実施形態を図１〜９に従って説明する。
図１は、本発明に係るインシュレータを用いたブラシレスモータを示す断面図である。ブラシレスモータ１はステータ２と、ステータ２と対向配置されるマグネット（図示略）を有したロータ３（図中、一点鎖線で示す）とを備える。ステータ２は、略円筒状のハウジング４内に配設され、インシュレータ５によって巻線６と絶縁されたコアとしてのステータコア７を備える。 Hereinafter, an embodiment embodying the present invention will be described with reference to FIGS.
FIG. 1 is a sectional view showing a brushless motor using an insulator according to the present invention. The brushless motor 1 includes a stator 2 and a rotor 3 (shown by an alternate long and short dash line in the drawing) having a magnet (not shown) disposed opposite to the stator 2. The stator 2 is provided in a substantially cylindrical housing 4 and includes a stator core 7 as a core insulated from the winding 6 by an insulator 5.

ステータコア７は、放射状に設けられ巻線６が巻装される複数のティース部８と、その各ティース部８の径方向外側端部を連結する環状部９とを備える。尚、本実施の形態では、ティース部８は、等角度（３０度）間隔に１２個形成されている。   The stator core 7 includes a plurality of tooth portions 8 provided radially and wound with the winding 6, and an annular portion 9 that connects the radially outer end portions of the tooth portions 8. In the present embodiment, twelve teeth portions 8 are formed at equiangular (30 degree) intervals.

ステータコア７は、ティース部８を一つずつ備えた複数（本実施形態では１２個）の分割コア１０から構成されている。各分割コア１０同士は、ティース部８から周方向両側へ延びる弧状に形成された分割コア環状部１１の周方向端部において当接している。分割コア１０は分割コア環状部１１とティース部８とを備えた薄板状の部材を積層することによって形成されている。なお、積層される部材の分割コア環状部１１の端部は、環状部９上に円弧中心を持つ円弧凸状または円弧凹状に形成されている。そして、分割コア１０同士の回動は、これら端部に形成された円弧によって案内される。   The stator core 7 includes a plurality of (in this embodiment, 12) divided cores 10 each having one tooth portion 8. The divided cores 10 are in contact with each other at the circumferential end portion of the divided core annular portion 11 formed in an arc shape extending from the tooth portion 8 to both sides in the circumferential direction. The split core 10 is formed by laminating thin plate-like members each including a split core annular portion 11 and a tooth portion 8. In addition, the edge part of the division | segmentation core annular part 11 of the member to be laminated | stacked is formed in the circular arc convex shape or circular arc concave shape which has an arc center on the cyclic | annular part 9. FIG. Then, the rotation of the split cores 10 is guided by arcs formed at these end portions.

インシュレータ５は、分割コア１０に対応した形状の複数（上記の分割コア１０に対応する数であり、本実施形態では１２個）のインシュレータ部材１２によって構成されている。そして、各インシュレータ部材１２は、個々の分割コア１０に対するインシュレータを構成する。なお、インシュレータ部材１２は絶縁性を有する樹脂材よりなる。   The insulator 5 is composed of a plurality of insulator members 12 (the number corresponding to the above-described divided core 10, which is 12 in this embodiment) having a shape corresponding to the divided core 10. Each insulator member 12 constitutes an insulator for each divided core 10. The insulator member 12 is made of an insulating resin material.

各インシュレータ部材１２は、隣接するインシュレータ部材１２同士が軸方向に重なる連結回動部１３を備えている。連結回動部１３の周方向端面１３ａは円弧状に形成されている。連結回動部１３は、回動軸としての軸方向に突出する凸部（連結凸部１０４）、もしくは、軸方向に窪む凹部（連結凹部２０４）を備える。これら凸部と凹部とを嵌合することによって、インシュレータ部材１２同士の連結が維持される。ここで、インシュレータ５を直線状に配列したとき、その両端のインシュレータ部材１２の周方向一端の連結回動部１３には凸部または凹部は形成されていない（図８参照）。つまり、直線状に配列された複数のインシュレータ部材１２において、両端に配置された２つのインシュレータ部材１２は凸部と凹部の嵌合による連結が不能となるように形成されている。   Each insulator member 12 includes a connecting rotation portion 13 in which adjacent insulator members 12 overlap each other in the axial direction. The circumferential end surface 13a of the connecting rotation unit 13 is formed in an arc shape. The connection rotation part 13 is provided with the convex part (connection convex part 104) which protrudes in the axial direction as a rotation axis | shaft, or the recessed part (connection recessed part 204) dented in an axial direction. By fitting these convex portions and concave portions, the connection between the insulator members 12 is maintained. Here, when the insulators 5 are arranged in a straight line, no convex portion or concave portion is formed on the connecting rotation portion 13 at one end in the circumferential direction of the insulator member 12 at both ends (see FIG. 8). That is, in the plurality of insulator members 12 arranged in a straight line, the two insulator members 12 arranged at both ends are formed so as to be unable to be connected by fitting the convex portions and the concave portions.

次に、連結回動部１３を備えたインシュレータ５としてのインシュレータ部材１２について詳しく説明する。
本実施形態のインシュレータ部材１２の連結回動部１３には軸方向に突出する凸部（連結凸部１０４）と軸方向に窪む凹部（連結凹部２０４）とが嵌合し、隣接するインシュレータ部材１２同士が連結される。つまり、インシュレータ５には、連結回動部１３上に軸方向に突出する連結凸部を有するインシュレータ部材１２と、連結回動部１３上に軸方向に窪む連結凹部を有するインシュレータ部材１２とがあり、両インシュレータ部材１２を周方向に交互に配設する。そして、隣接するインシュレータ部材１２同士の凸部と凹部とを嵌合することでインシュレータ部材１２を連結している。 Next, the insulator member 12 as the insulator 5 provided with the connecting rotation part 13 will be described in detail.
The connecting rotation portion 13 of the insulator member 12 of the present embodiment is fitted with an axially protruding convex portion (connecting convex portion 104) and an axially recessed portion (connecting concave portion 204), and is adjacent to the insulator member. 12 are connected. That is, the insulator 5 includes an insulator member 12 having a connecting convex portion protruding in the axial direction on the connecting rotating portion 13 and an insulator member 12 having a connecting concave portion recessed in the axial direction on the connecting rotating portion 13. Yes, the two insulator members 12 are alternately arranged in the circumferential direction. And the insulator member 12 is connected by fitting the convex part and recessed part of adjacent insulator members 12 with each other.

以下、両インシュレータ部材１２を区別するために、連結凸部を有するインシュレータ部材１２を第１インシュレータ部材１００（図２及び図３参照）、連結凹部を有するインシュレータ部材１２を第２インシュレータ部材２００（図４及び図５参照）とする。   Hereinafter, in order to distinguish between the two insulator members 12, the insulator member 12 having a connecting convex portion is referred to as a first insulator member 100 (see FIGS. 2 and 3), and the insulator member 12 having a connecting concave portion is referred to as a second insulator member 200 (see FIG. 2). 4 and FIG. 5).

図２は、第１インシュレータ部材１００の平面図、図３は第１インシュレータ部材１００の斜視図である。
第１インシュレータ部材１００は、ティース部８（図１参照）を被覆するコアティース被覆部１０１と、そのコアティース被覆部１０１から周方向に延びる環状被覆部１０２とを備える。 FIG. 2 is a plan view of the first insulator member 100, and FIG. 3 is a perspective view of the first insulator member 100.
The 1st insulator member 100 is provided with the core teeth coating | coated part 101 which coat | covers the teeth part 8 (refer FIG. 1), and the cyclic | annular coating | coated part 102 extended in the circumferential direction from the core teeth coating | coated part 101. FIG.

コアティース被覆部１０１は、ティース部８（図１参照）の軸方向一方の面を被覆する面１０１ａと、ティース部８（図１参照）の周方向両側面を被覆する一対の面１０１ｂとを備えている。また、コアティース被覆部１０１の先端部は巻装される巻線の径方向内側へのはみ出しを規制するべく軸方向に突出している突出面１０１ｃを備える。   The core teeth covering portion 101 includes a surface 101a that covers one axial surface of the tooth portion 8 (see FIG. 1) and a pair of surfaces 101b that cover both circumferential sides of the tooth portion 8 (see FIG. 1). I have. Further, the tip portion of the core teeth covering portion 101 includes a protruding surface 101c protruding in the axial direction so as to restrict the protrusion of the wound winding to the radially inner side.

環状被覆部１０２は、分割コア環状部１１（図１参照）の内周側を被覆し周方向に延びる面である環状被覆面１０２ａと分割コア環状部１１（図１参照）の軸方向一方の面上に配設される端面部１０２ｂとを備えている。   The annular covering portion 102 covers the inner peripheral side of the split core annular portion 11 (see FIG. 1) and extends in the circumferential direction. The annular covering surface 102a and one axial direction of the split core annular portion 11 (see FIG. 1) are provided. And an end surface portion 102b disposed on the surface.

端面部１０２ｂは、巻装される巻線６（図１参照）の径方向外側へのはみ出しを規制すべく軸方向に突出して形成され、その一部には巻線６（図１参照）を係止可能な係止溝１０２ｃが形成されている。   The end surface portion 102b is formed so as to protrude in the axial direction so as to restrict the protrusion of the wound winding 6 (see FIG. 1) to the outside in the radial direction, and a winding 6 (see FIG. 1) is formed in a part thereof. A locking groove 102c that can be locked is formed.

環状被覆部１０２の端面部１０２ｂの周方向端面１０２ｄには、連結回動部１０３が配設されている。さらに、環状被覆部１０２の端面部１０２ｂの周方向端面１０２ｄは周方向内側に窪む円弧面状に形成され、図１に示すように、隣接するインシュレータ部材１２（インシュレータ部材２００）の連結回動部１３（連結回動部２０３）の周方向端面１３ａ（周方向端面２０３ａ）と当接し互いの回動の妨げとならないようになっている。   On the end surface 102d in the circumferential direction of the end surface portion 102b of the annular covering portion 102, a connecting rotation portion 103 is disposed. Furthermore, the circumferential end surface 102d of the end surface portion 102b of the annular covering portion 102 is formed in an arcuate surface shape recessed inward in the circumferential direction, and as shown in FIG. 1, the connecting rotation of the adjacent insulator member 12 (insulator member 200) is performed. It abuts against the circumferential end surface 13a (circumferential end surface 203a) of the portion 13 (coupled rotating portion 203) so as not to interfere with the mutual rotation.

連結回動部１０３は図１に示す環状部９の径方向幅内に形成され、その回動部端面１０３ａは周方向外側に脹らむ半円未満の円弧状に形成されている。さらに隣接する連結回動部１３（連結回動部２０３）（図１参照）と軸方向に当接する面である当接面１０３ｂ上には、連結凸部１０４が形成されている。   The connecting rotation portion 103 is formed within the radial width of the annular portion 9 shown in FIG. 1, and the rotation portion end surface 103a is formed in an arc shape less than a semicircle expanding outward in the circumferential direction. Further, a connecting convex portion 104 is formed on an abutting surface 103b which is an axially abutting surface with the adjacent connecting rotating portion 13 (the connecting rotating portion 203) (see FIG. 1).

連結凸部１０４は、図２及び図３に示すように、連結回動部１０３の当接面１０３ｂから軸方向に突出している。連結凸部１０４は、分割コア環状部１１（図１参照）の径方向幅の中心よりも外周側に円弧中心をもつ円弧によって形成された曲面である回動案内面としての凸部円弧面１０５と、２つの平面１０６と、をもつ扇状に構成されている。   As shown in FIGS. 2 and 3, the connecting convex portion 104 protrudes in the axial direction from the contact surface 103 b of the connecting rotating portion 103. The connecting convex portion 104 is a convex circular arc surface 105 as a rotation guide surface that is a curved surface formed by an arc having an arc center on the outer peripheral side of the center of the radial width of the split core annular portion 11 (see FIG. 1). And the two planes 106 are configured in a fan shape.

凸部円弧面１０５を形成する円弧は半円未満の円弧である。ここで、凸部円弧面１０５と連結回動部１０３の回動部端面１０３ａとは同一の円弧中心をもつ円弧面から形成される。また、この円弧中心は、図１に示すように分割コア１０に装着されたとき、分割コア環状部１１の端部を形成する円弧の中心と同軸上に配設される。   The arc forming the convex arc surface 105 is an arc less than a semicircle. Here, the convex arc surface 105 and the rotation end surface 103a of the connecting rotation unit 103 are formed from arc surfaces having the same arc center. Further, this arc center is disposed coaxially with the center of the arc forming the end of the split core annular portion 11 when mounted on the split core 10 as shown in FIG.

また、凸部円弧面１０５を形成する円弧の半径は、少なくとも円弧中心（分割コアの回動中心）から環状被覆部１０２の径方向外周までの距離よりも大きな半径に設定され、本実施形態では分割コア環状部１１（図１参照）の幅の略１／２となっている。すなわち、凸部円弧面１０５を形成する円弧は、例えば分割コア環状部１１（図１参照）に収まるように形成され分割コア環状部１１の径方向幅の中心よりも外周側に中心をもつ円柱の半径よりも大きな半径を有している。   Further, the radius of the arc that forms the convex arc surface 105 is set to a radius that is at least larger than the distance from the arc center (rotation center of the split core) to the outer periphery in the radial direction of the annular covering portion 102. This is approximately half the width of the split core annular portion 11 (see FIG. 1). That is, the circular arc forming the convex arcuate surface 105 is, for example, a cylinder formed so as to be accommodated in the split core annular portion 11 (see FIG. 1) and having a center on the outer peripheral side with respect to the center of the radial width of the split core annular portion 11. It has a larger radius than

連結凸部１０４は、連結回動部１０３の当接面１０３ｂから軸方向に突出しており、その突出方向はティース部８の周方向側面を被覆する面１０１ｂの延びる方向（図３において下方向）と同一である。   The connecting convex portion 104 protrudes in the axial direction from the contact surface 103b of the connecting rotating portion 103, and the protruding direction is a direction in which the surface 101b covering the circumferential side surface of the tooth portion 8 extends (downward in FIG. 3). Is the same.

また、凸部円弧面１０５の軸方向端部には凸部円弧面１０５から垂直に突出する鉤凸部１０７を備えている。鉤凸部１０７は、環状部９（図１参照）を形成する円の径方向以外に向いて突出するとともに、環状部９の径方向幅内に収まるように形成されている。   Further, a hooked convex portion 107 protruding perpendicularly from the convex circular surface 105 is provided at the axial end of the convex circular surface 105. The collar protrusion 107 protrudes in a direction other than the radial direction of the circle forming the annular portion 9 (see FIG. 1) and is formed so as to be within the radial width of the annular portion 9.

図４は、第２インシュレータ部材２００の平面図、図５は第２インシュレータ部材２００の斜視図である。
第２インシュレータ部材２００は、ティース部８を被覆するコアティース被覆部２０１と、そのコアティース被覆部２０１から周方向に延びる環状被覆部２０２とを備える。 FIG. 4 is a plan view of the second insulator member 200, and FIG. 5 is a perspective view of the second insulator member 200.
The second insulator member 200 includes a core teeth covering portion 201 that covers the tooth portion 8 and an annular covering portion 202 that extends from the core teeth covering portion 201 in the circumferential direction.

コアティース被覆部２０１は、ティース部８（図１参照）の軸方向一方の面を被覆する面２０１ａと、ティース部８（図１参照）の周方向両側面を被覆する一対の面２０１ｂとを備えている。また、コアティース被覆部２０１の先端部は巻装される巻線の径方向内側へのはみ出しを規制するべく軸方向に突出している突出面２０１ｃを備える。   The core teeth covering portion 201 includes a surface 201a that covers one axial surface of the tooth portion 8 (see FIG. 1) and a pair of surfaces 201b that cover both circumferential sides of the tooth portion 8 (see FIG. 1). I have. Further, the tip portion of the core teeth covering portion 201 is provided with a protruding surface 201c protruding in the axial direction so as to restrict the protrusion of the wound winding to the radially inner side.

環状被覆部２０２は、分割コア環状部１１の内周側を被覆し周方向に延びる面である環状被覆面２０２ａと分割コア環状部１１の軸方向一方の面上に配設される端面部２０２ｂとを備えている。   The annular covering portion 202 covers the inner peripheral side of the divided core annular portion 11 and extends in the circumferential direction, and an end surface portion 202b disposed on one axial surface of the divided core annular portion 11. And.

端面部２０２ｂは、巻装される巻線６（図１参照）の径方向外側へのはみ出しを規制すべく軸方向に突出して形成され、その一部には巻線６（図１参照）を係止可能な係止溝２０２ｃが形成されている。   The end surface portion 202b is formed so as to protrude in the axial direction so as to restrict the protrusion of the wound winding 6 (see FIG. 1) to the outside in the radial direction, and a winding 6 (see FIG. 1) is formed in a part thereof. A locking groove 202c that can be locked is formed.

環状被覆部２０２の端面部２０２ｂの周方向端面２０２ｄには、連結回動部２０３が配設されている。さらに、環状被覆部２０２の端面部２０２ｂの周方向端面２０２ｄは周方向内側に窪む円弧面状に形成され、図１に示すように、隣接するインシュレータ部材１２（インシュレータ部材１００）の連結回動部１３（連結回動部１０３）の周方向端面１３ａ（周方向端面１０３ａ）と当接し互いの回動の妨げとならないようになっている。   On the end surface 202d in the circumferential direction of the end surface portion 202b of the annular covering portion 202, a connecting rotation portion 203 is disposed. Further, the circumferential end surface 202d of the end surface portion 202b of the annular covering portion 202 is formed in an arcuate surface shape recessed inward in the circumferential direction, and as shown in FIG. 1, the connecting rotation of the adjacent insulator member 12 (insulator member 100) is performed. It abuts against the circumferential end surface 13a (circumferential end surface 103a) of the portion 13 (coupled rotating portion 103) so as not to prevent mutual rotation.

連結回動部２０３は、図１に示す環状部９の径方向幅内に形成され、その回動部端面２０３ａは周方向外側に脹らむ半円未満の円弧状に形成されている。さらに隣接する連結回動部１３（連結回動部１０３ａ）（図１参照）と軸方向に当接する面である当接面２０３ｂ上には、連結凹部２０４が形成されている。   The connecting rotation portion 203 is formed within the radial width of the annular portion 9 shown in FIG. 1, and the rotation portion end surface 203a is formed in an arc shape less than a semicircle expanding outward in the circumferential direction. Further, a connecting concave portion 204 is formed on an abutting surface 203b that is an axially abutting surface with the adjacent connecting rotating portion 13 (connected rotating portion 103a) (see FIG. 1).

連結凹部２０４は、図４及び図５に示すように、連結回動部２０３を軸方向に貫く孔である。連結凹部２０４は、分割コア環状部１１（図１参照）の径方向幅の中心よりも外周側に円弧中心をもつ円弧によって形成された曲面である回動案内面としての凹部円弧面２０５と平面２０６とをもつ扇状に構成されている。   As shown in FIGS. 4 and 5, the connection recess 204 is a hole that penetrates the connection rotation portion 203 in the axial direction. The connecting recess 204 is flat with a recess arc surface 205 as a rotation guide surface which is a curved surface formed by an arc having an arc center on the outer peripheral side of the center of the radial width of the split core annular portion 11 (see FIG. 1). 206 is configured in a fan shape.

ここで、凹部円弧面２０５と連結回動部２０３の回動部端面２０３ａとは同一の円弧中心をもつ円弧面から形成される。また、この円弧中心は、図１に示すように分割コア１０に装着されたとき、分割コア環状部１１の端部を形成する円弧の中心と同軸上に配設される。   Here, the concave arc surface 205 and the rotating portion end surface 203a of the connecting rotating portion 203 are formed from arc surfaces having the same arc center. Further, this arc center is disposed coaxially with the center of the arc forming the end of the split core annular portion 11 when mounted on the split core 10 as shown in FIG.

凹部円弧面２０５上には軸方向に延びる溝である鉤凹部２０７が形成されている。鉤凹部２０７は、環状部９（図１参照）を形成する円の径方向以外に窪み、環状部９の径方向幅内に収まるように形成されている。なお、鉤凸部１０７（図２又は３参照）と鉤凹部２０７とは、連結凸部１０４と連結凹部２０４とが所定の相対角度のときにのみ同軸上に並ぶように形成されている。   On the concave arcuate surface 205, a collar recess 207, which is a groove extending in the axial direction, is formed. The collar recess 207 is formed in such a manner as to be recessed in a direction other than the radial direction of the circle forming the annular portion 9 (see FIG. 1) and fit within the radial width of the annular portion 9. Note that the collar protrusion 107 (see FIG. 2 or 3) and the collar recess 207 are formed so as to be aligned coaxially only when the connection protrusion 104 and the connection recess 204 are at a predetermined relative angle.

第２インシュレータ部材２００の周方向端面２０２ｄは連結回動部２０３によって軸方向外側の面２０２ｅと内側の面２０２ｆとに分断されている。ここで、第１インシュレータ部材１００の連結回動部１０３の軸方向厚さは、第２インシュレータ部材２００の周方向端面２０２ｄの外側の面２０２ｅの軸方向幅よりも小さい。また、第１インシュレータ部材１００の連結凸部１０４から鉤凸部１０７を除いた軸方向長さは、第２インシュレータ部材２００の連結回動部２０３の軸方向厚さよりも小さい。さらに、連結凸部１０４上に形成される鉤凸部１０７の軸方向長さは、第２インシュレータ部材２００の周方向端面１０２ｄの内側の面２０２ｆの軸方向長さよりも短い。つまり、第１インシュレータ部材１００の連結回動部１０３と、第２インシュレータ部材２００の連結回動部２０３を軸方向に重ねたとき、その両方が周方向端面１０２ｄ，２０２ｄの軸方向幅内に収まるように形成されている。   The circumferential end surface 202d of the second insulator member 200 is divided by the connecting rotation portion 203 into an axially outer surface 202e and an inner surface 202f. Here, the axial thickness of the connecting rotation portion 103 of the first insulator member 100 is smaller than the axial width of the outer surface 202 e of the circumferential end surface 202 d of the second insulator member 200. In addition, the axial length of the first insulator member 100 excluding the collar convex portion 107 from the connecting convex portion 104 is smaller than the axial thickness of the connecting rotating portion 203 of the second insulator member 200. Further, the axial length of the collar convex portion 107 formed on the connecting convex portion 104 is shorter than the axial length of the inner surface 202 f of the circumferential end surface 102 d of the second insulator member 200. That is, when the connection rotation part 103 of the 1st insulator member 100 and the connection rotation part 203 of the 2nd insulator member 200 are piled up on an axial direction, both are settled in the axial direction width | variety of the circumferential direction end surfaces 102d and 202d. It is formed as follows.

これら第１及び第２インシュレータ部材１００，２００は、それぞれの連結回動部１０３，２０３に配設された連結凸部１０４と連結凹部２０４とを嵌合することによって連結され、インシュレータ５となる。   The first and second insulator members 100 and 200 are connected by fitting the connecting convex portions 104 and the connecting concave portions 204 arranged in the respective connecting rotation portions 103 and 203 to form the insulator 5.

次に、前述した第１インシュレータ部材１００と第２インシュレータ部材２００との連結状態について示す。
図６は、嵌合直後のインシュレータ５である。嵌合時、第１及び第２インシュレータ部材１００，２００の周方向端部にそれぞれ配設された連結凸部１０４に形成された鉤凸部１０７と連結凹部２０４に形成された鉤凹部２０７とは同軸上に並んでいる。 Next, a connection state between the first insulator member 100 and the second insulator member 200 described above will be described.
FIG. 6 shows the insulator 5 immediately after fitting. At the time of fitting, the hook convex portion 107 formed on the connecting convex portion 104 and the hook concave portion 207 formed on the connecting concave portion 204 respectively disposed at the circumferential ends of the first and second insulator members 100 and 200 They are lined up on the same axis.

図７は、図６における連結回動部１０３，２０３（図１においては１３）の断面であるＡ−Ａ断面の拡大図である。連結凸部１０４の凸部円弧面１０５上に形成された鉤凸部１０７の突出長さは、連結凹部２０４の凹部円弧面２０５に形成された鉤凹部２０７の深さより小さい。よって鉤凸部１０７が連結凹部２０４に当接することなく鉤凹部２０７を通り、連結凹部２０４に連結凸部１０４が挿入される。なお、第１及び第２インシュレータ部材１００，２００を連結した状態で分割コア１０（図１参照）に装着したとき、連結凸部１０４は、連結凹部２０４と分割コア１０とに囲まれることとなる。   FIG. 7 is an enlarged view of the AA cross section, which is a cross section of the connecting rotation portions 103 and 203 (13 in FIG. 1) in FIG. The protruding length of the ridge convex portion 107 formed on the convex arc surface 105 of the connecting convex portion 104 is smaller than the depth of the ridge concave portion 207 formed on the concave arc surface 205 of the connecting concave portion 204. Therefore, the collar convex portion 107 passes through the collar concave portion 207 without contacting the coupling concave portion 204, and the coupling convex portion 104 is inserted into the coupling concave portion 204. When the first and second insulator members 100 and 200 are connected to the split core 10 (see FIG. 1) in a connected state, the connection convex portion 104 is surrounded by the connection concave portion 204 and the split core 10. .

図８は、図６の状態を経て連結されたインシュレータ５をコアティース被覆部１０１，２０１の突出方向が平行となるように並べた状態を示している。このとき、第１及び第２インシュレータ部材１００，２００は相対回動しているため、連結凸部１０４に形成された鉤凸部１０７と連結凹部２０４に形成された鉤凹部２０７とは同軸上に並ばない。よって、鉤凸部１０７と連結凹部２０４とが連結凸部１０４と連結凹部２０４との嵌合方向に垂直な面で当接するため、連結凸部１０４は連結凹部２０４から抜けることができない。よって、連結状態が維持される。   FIG. 8 shows a state in which the insulators 5 connected through the state of FIG. 6 are arranged so that the protruding directions of the core teeth covering portions 101 and 201 are parallel to each other. At this time, since the first and second insulator members 100 and 200 are relatively rotated, the flange protrusion 107 formed on the connection protrusion 104 and the flange recess 207 formed on the connection recess 204 are coaxial. Not lined up. Therefore, since the collar convex portion 107 and the connecting concave portion 204 abut on a plane perpendicular to the fitting direction of the connecting convex portion 104 and the connecting concave portion 204, the connecting convex portion 104 cannot come out of the connecting concave portion 204. Therefore, the connected state is maintained.

図９は、インシュレータ５のコアティース被覆部１０１，２０１を内周方向に配設したものである。この状態にしても前述した図８の時と同様、連結凸部１０４に形成された鉤凸部１０７と連結凹部２０４に形成された鉤凹部２０７とは同軸上に並ばない。よって、鉤凸部１０７と連結凹部２０４とが連結凸部１０４と連結凹部２０４と嵌合方向に垂直な面で当接するため、連結凸部１０４は連結凹部２０４から抜けることができない。   FIG. 9 shows the core teeth covering portions 101 and 201 of the insulator 5 arranged in the inner circumferential direction. Even in this state, as in the case of FIG. 8 described above, the collar protrusion 107 formed in the connection protrusion 104 and the collar recess 207 formed in the connection recess 204 are not aligned on the same axis. Therefore, since the collar protrusion 107 and the connection recess 204 abut on the connection protrusion 104 and the connection recess 204 on a surface perpendicular to the fitting direction, the connection protrusion 104 cannot be removed from the connection recess 204.

図６〜図９に示すインシュレータ５を分割コア１０（図１参照）に装着し、連結回動部１０３，２０３（図１においては１３）上の連結凸部１０４を回動軸として、図１に示すインシュレータ部材１２ひいては分割コア１０同士の相対角を変化させる。このとき、連結凸部１０４の凸部円弧面１０５と、連結凹部２０４の凹部円弧面２０５および分割コア環状部１１の円弧上に形成された端部によって回動が案内される。その後、巻線６を巻装するティース部８の突出方向端部の間隔を広くし（図８の状態）、巻線６を巻装する。   The insulator 5 shown in FIGS. 6 to 9 is mounted on the split core 10 (see FIG. 1), and the connecting convex portion 104 on the connecting rotating portions 103 and 203 (13 in FIG. 1) is used as a rotating shaft. The relative angle between the insulator members 12 and the divided cores 10 shown in FIG. At this time, the rotation is guided by the convex arc surface 105 of the connecting convex portion 104, the concave arc surface 205 of the connecting concave portion 204 and the end portion formed on the arc of the split core annular portion 11. Then, the space | interval of the protrusion direction edge part of the teeth part 8 which winds the coil | winding 6 is widened (state of FIG. 8), and the coil | winding 6 is wound.

図１に示すように、前述したインシュレータ５（第１及び第２インシュレータ部材１００，２００）を用いてコア（分割コア１０）と巻線６とを絶縁することによって、巻線６の巻装が容易なステータコア、引いては、ブラシレスモータを得ることが可能となる。   As shown in FIG. 1, the core 6 (split core 10) and the winding 6 are insulated from each other by using the insulator 5 (first and second insulator members 100 and 200) described above, whereby the winding 6 is wound. It is possible to obtain an easy stator core, and thus a brushless motor.

上記したように、本実施形態によれば、以下の効果を有する。
（１）連結凸部１０４および連結凹部２０４を形成する円弧（凸部円弧面１０５，凹部円弧面２０５）の円弧中心を環状部径方向幅中心より外径側にすることによって、回動中心も外径側になる。よって、回動によりティース部８先端を径方向内側に向け分割コア１０を円環状とした完成形のステータ状態のときよりも分割コア同士の回動角を広くすることができる。また、回動中心が外径側にあるため、回動中心が内径側にあるものよりも、回動中心からティース部８の中心線までの距離が長くなる。よって、回動中心を中心として回動させ、各分割コアのティース部８の中心線が平行になるように配列したとき、隣接する分割コア同士のティース部８の距離が大きくなり、巻線の巻装がさらに容易となる。さらに、連結凸部１０４及び連結凹部２０４を形成する円弧を半円未満とすることによって、連結凸部１０４及び連結凹部２０４を形成する円弧面（凸部円弧面１０５，凹部円弧面２０５）の半径を環状部９（連結回動部１０３，２０３）の径方向幅と略同一にすることが可能となる。よって、連結凸部１０４の断面積を大きくすることができるため連結凸部１０４の強度が高くなり、製造時に連結凸部１０４の折損する恐れを低減することができる。 As described above, the present embodiment has the following effects.
(1) By setting the arc center of the arcs (convex arc surface 105, concave arc surface 205) forming the connecting convex portion 104 and the connecting concave portion 204 to be on the outer diameter side from the radial width center of the annular portion, the rotation center is also set. It becomes the outer diameter side. Therefore, the rotation angle between the split cores can be made wider than that in the completed stator state in which the tip of the teeth portion 8 is directed radially inward and the split core 10 is formed in an annular shape. Further, since the rotation center is on the outer diameter side, the distance from the rotation center to the center line of the tooth portion 8 is longer than that in which the rotation center is on the inner diameter side. Therefore, when it is rotated around the center of rotation and arranged so that the center lines of the tooth portions 8 of each divided core are parallel, the distance between the tooth portions 8 between adjacent divided cores increases, Winding becomes even easier. Furthermore, the radius of the circular arc surface (the convex circular arc surface 105, the concave circular arc surface 205) which forms the connection convex part 104 and the connection recessed part 204 by making the circular arc which forms the connection convex part 104 and the connection concave part 204 into less than a semicircle. Can be made substantially the same as the radial width of the annular portion 9 (the connecting rotation portions 103 and 203). Therefore, since the cross-sectional area of the connecting convex portion 104 can be increased, the strength of the connecting convex portion 104 is increased, and the risk of breaking the connecting convex portion 104 during manufacturing can be reduced.

（２）連結凸部１０４に鉤凸部１０７を配設することによって、連結凸部１０４の嵌入方向（軸方向）に変位を与えようとしても、鉤凸部１０７と鉤凹部２０７とが同軸上に並ばない限り、連結凸部１０４と連結凹部２０４との嵌合は保持される。よって、巻線６の巻装時やコアを形成する際の配列変更時にインシュレータ部材１２もしくは分割コア１０同士の連結を維持しやすくなる。そのため、複数の分割コア１０に対して同時にインシュレータ部材１２を装着することが可能となり、製造が容易となる。   (2) By disposing the collar convex portion 107 on the coupling convex portion 104, the collar convex portion 107 and the collar concave portion 207 are coaxially arranged even if a displacement is applied in the insertion direction (axial direction) of the coupling convex portion 104. As long as they are not aligned with each other, the fitting between the connecting convex portion 104 and the connecting concave portion 204 is maintained. Therefore, it becomes easy to maintain the connection between the insulator member 12 or the divided cores 10 when winding the winding 6 or when changing the arrangement when forming the core. Therefore, it is possible to attach the insulator member 12 to the plurality of divided cores 10 at the same time, which facilitates manufacture.

（３）鉤凸部１０７を環状部９（図１参照）を形成する円の径方向以外に向いて突出するとともに、環状部９の径方向幅内に収まるように形成することによって、連結凸部１０４の径方向幅に影響を与えることなく鉤凸部１０７を備えることができる。よって、連結凸部１０４に強度を変化させることなく、鉤凸部１０７を備えることができる。同様に、鉤凹部２０７を環状部９（図１参照）を形成する円の径方向以外に向いて窪ませることによって、連結凹部２０４を備える連結回動部２０３の径方向断面積を変化させることなく鉤凹部２０７を備えることができる。よって、連結凹部２０４を備える連結回動部２０３の強度を変化させることなく、鉤凹部２０７を備えることができる。   (3) The projections 107 are formed so as to protrude in directions other than the radial direction of the circle forming the annular portion 9 (see FIG. 1) and to be within the radial width of the annular portion 9, thereby The ridges 107 can be provided without affecting the radial width of the portion 104. Therefore, the ridge protrusion 107 can be provided in the connecting protrusion 104 without changing the strength. Similarly, changing the radial cross-sectional area of the connecting rotation portion 203 including the connecting recess 204 by recessing the saddle recess 207 in a direction other than the radial direction of the circle forming the annular portion 9 (see FIG. 1). And a saddle recess 207 can be provided. Therefore, the collar recess 207 can be provided without changing the strength of the connecting rotation part 203 including the connection recess 204.

（４）連結凸部１０４を分割コア１０側に突出することによって、鉤凸部１０７は分割コア１０側に形成される。このように形成することよって、鉤凸部１０７は他の部材などとの引っかかりを抑制することが可能となる。よって、製造時の連結部の信頼性が高まる。また、インシュレータ部材１２を連結し分割コア１０を装着しさらにハウジング４に収容すると連結凸部１０４は連結凹部２０４と分割コア１０の分割コア環状部１１とハウジング４とに囲まれる。よって、連結凸部１０４が折損しても離脱することを防止することができる。   (4) By projecting the connecting convex portion 104 to the split core 10 side, the collar convex portion 107 is formed on the split core 10 side. By forming in this way, it is possible to suppress the hooked portion 107 from being caught with other members. Therefore, the reliability of the connection part at the time of manufacture increases. Further, when the insulator member 12 is connected, the split core 10 is mounted, and further accommodated in the housing 4, the connection convex portion 104 is surrounded by the connection concave portion 204, the split core annular portion 11 of the split core 10, and the housing 4. Therefore, it can be prevented that the connecting convex portion 104 is detached even if it is broken.

（５）連結回動部１３を回動中心として分割コア１０同士を相対回動させることができる。よって、近接する分割コア１０のティース部８の端部の間隔を広くすることが可能となり、巻線６の巻装が容易となる。   (5) The split cores 10 can be rotated relative to each other with the connecting rotation portion 13 as the rotation center. Therefore, it is possible to widen the interval between the end portions of the tooth portions 8 of the adjacent split cores 10, and the winding 6 can be easily wound.

尚、本発明の実施形態は、以下のように変更してもよい。
○上記実施形態では、１２個の分割コア１０から構成されるステータコア７としたが、その他の個数の分割コアから構成されるステータコアに変更してもよい。尚、勿論、この場合、第１及び第２インシュレータ部材１００，２００の個数も変更する必要がある。 In addition, you may change embodiment of this invention as follows.
In the above embodiment, the stator core 7 is composed of 12 divided cores 10, but may be changed to a stator core composed of other numbers of divided cores. Of course, in this case, the number of the first and second insulator members 100 and 200 also needs to be changed.

○上記実施形態では、凸部円弧面１０５を形成する円弧の半径を分割コア環状部１１（図１）の幅の略１／２とした。しかし、必ずしも略１／２とする必要はなく、分割コア環状部１１の径方向幅内に収まる範囲で変更しても良い。   In the above embodiment, the radius of the arc that forms the convex arc surface 105 is approximately ½ of the width of the split core annular portion 11 (FIG. 1). However, it is not necessarily required to be approximately ½, and may be changed within a range that falls within the radial width of the split core annular portion 11.

○上記実施形態では、連結凸部１０４もしくは連結凹部２０４のみをその両端に備えたインシュレータ部材１２を交互に配設することによってインシュレータ５を形成した。しかし、一端に連結凸部１０４を備え、他端に連結凹部２０４を備えたインシュレータ部材からインシュレータを構成することもできる。   In the above embodiment, the insulator 5 is formed by alternately disposing the insulator members 12 having only the connecting convex portions 104 or the connecting concave portions 204 at both ends thereof. However, it is also possible to configure the insulator from an insulator member provided with the connecting convex portion 104 at one end and the connecting concave portion 204 at the other end.

○上記実施形態では、連結凸部１０４をコアティース被覆部１０１の周方向側面を被覆する面１０１ｂの延びる方向（図３において下方向）へ突出させた。しかし、連結凸部１０４を実施形態とは逆の方向に突出させても、半円弧未満の円弧から形成すれば許容される幅内で突出面積の大きく強度をもった連結凸部１０４を備えることができる。   In the above embodiment, the connecting convex portion 104 is protruded in the extending direction (downward in FIG. 3) of the surface 101 b that covers the circumferential side surface of the core teeth covering portion 101. However, even if the connecting convex portion 104 protrudes in the opposite direction to that of the embodiment, the connecting convex portion 104 having a large protruding area and a strong strength within an allowable width is provided if formed from an arc less than a semicircular arc. Can do.

○上記実施形態では、連結凹部２０４を軸方向に貫通する穴とした。しかし、必ずしも貫通させる必要はない。例えば、連結凹部２０４に底を備えてもよい。この場合、連結凸部１０４の回動は許容されるとともに、所定の角度以外では連結回動部１３（１０３，２０３）の連結は解除されない。さらに、連結凸部１０４が折損しても連結凹部２０４とその底部から構成される空間内にその折損片が保持されるため離脱を防ぐことができる。   In the above embodiment, the connecting recess 204 is a hole penetrating in the axial direction. However, it is not always necessary to penetrate. For example, the connection recess 204 may have a bottom. In this case, the rotation of the connection convex portion 104 is allowed, and the connection of the connection rotation portion 13 (103, 203) is not released except at a predetermined angle. Furthermore, even if the connection convex part 104 breaks, since the broken piece is held in the space constituted by the connection concave part 204 and the bottom part thereof, separation can be prevented.

○上記実施の形態では、分割コア１０の周方向端部は隣接する分割コア同士の回動が案内される円弧凹凸状に形成されるとした。しかし、少なくとも、インシュレータ５の連結回動部１３の回動中心と同軸上に配設される回動中心で分割コア同士が回動可能で、環状に配列したときに分割コア１０同士が周方向に当接するように形成されていればよい。   In the above embodiment, the circumferential end portion of the split core 10 is formed in an arcuate uneven shape that guides the rotation of the adjacent split cores. However, the split cores can rotate at the center of rotation disposed coaxially with the center of rotation of the connecting rotation portion 13 of the insulator 5, and the split cores 10 are circumferentially arranged when arranged in an annular shape. What is necessary is just to be formed so that it may contact | abut.

○上記実施の形態では、第１及び第２インシュレータ部材１００，２００の嵌合状態はコアティース被覆部１０１，２０１が外周側に延びる配列とした（図６参照）。しかし、他の角度、例えば、図７に示す状態と図８に示す状態の間の角度に変更してもよい。尚、その場合、勿論、鉤凸部１０７及び鉤凹部２０７の少なくとも一方の延びる方向を変更する必要がある。   In the above embodiment, the fitting state of the first and second insulator members 100 and 200 is an arrangement in which the core teeth covering portions 101 and 201 extend to the outer peripheral side (see FIG. 6). However, you may change into another angle, for example, the angle between the state shown in FIG. 7, and the state shown in FIG. In this case, of course, it is necessary to change the extending direction of at least one of the ridge protrusion 107 and the ridge recess 207.

上記各実施形態から把握できる技術的思想を以下に記載する。
（イ）前記鉤凸部は、前記連結凸部の突出方向端部側に配設される。本発明によれば、鉤凸部から軸方向端部側に突出していない。よって、連結凸部と他の部材等とが接触することを抑制することが可能となり、連結凸部の折損する恐れを低減することができる。 The technical idea that can be grasped from each of the above embodiments will be described below.
(B) pre-Symbol鉤凸unit is disposed in the protruding direction end portion side of the connecting projections. According to the present invention, it does not protrude from the ridge convex portion toward the axial end portion. Therefore, it becomes possible to suppress that a connection convex part and other members contact, and a possibility that a connection convex part may be broken can be reduced.

（ロ）前記連結凸部は、前記環状被覆部の周方向一端に形成され、前記連結凹部は前記環状被覆部の周方向他端に形成される。本発明によれば、一端に連結凸部を備え、多端に連結凹部を備えたインシュレータを得ることができる。よって、隣接するインシュレータ同士の連結凸部と連結凹部とを連結することで、分割コア同士を相対回動可能に連結し巻線の巻装を容易とすることのできるインシュレータを得ることができる。 (B) pre-Symbol connecting protrusions, the formed in the circumferential end of the annular covering part, wherein the connecting recess is formed in the circumferential direction end of the annular covering part. According to the present invention, it is possible to obtain an insulator having a connecting convex portion at one end and a connecting concave portion at multiple ends. Therefore, by connecting the connecting convex portions and the connecting concave portions between the adjacent insulators, it is possible to obtain an insulator that can connect the split cores so as to be relatively rotatable and facilitate winding of the winding.

（ハ）前記連結凸部または前記連結凹部は、前記環状被覆部の周方向両端に形成される。本発明によれば、両端に連結凸部を備えたインシュレータと、両端に連結凹部を備えたインシュレータとを得ることができる。よって、これらを交互に配列し隣接するインシュレータ同士の連結凸部と連結凹部とを連結することで、分割コア同士を相対回動可能に連結し巻線の巻装を容易とすることのできるインシュレータを得ることができる。 (C) before Symbol connecting protrusions or the coupling recess is formed in the circumferential end of the annular covering part. According to the present invention, it is possible to obtain an insulator having connecting convex portions at both ends and an insulator having connecting concave portions at both ends. Therefore, by arranging these alternately and connecting the connecting projections and the connecting recesses between the adjacent insulators, the split cores can be connected to each other so as to be relatively rotatable, and the winding can be easily wound. Can be obtained.

本発明に係るインシュレータを用いたモータを示す断面図。Sectional drawing which shows the motor using the insulator which concerns on this invention. 本発明に係る第１インシュレータ部材の平面図。The top view of the 1st insulator member which concerns on this invention. 本発明に係る第１インシュレータ部材の斜視図。The perspective view of the 1st insulator member which concerns on this invention. 本発明に係る第２インシュレータ部材の平面図。The top view of the 2nd insulator member which concerns on this invention. 本発明に係る第２インシュレータ部材の斜視図。The perspective view of the 2nd insulator member concerning the present invention. 本発明に係るインシュレータの平面図。The top view of the insulator which concerns on this invention. 図６のＡ−Ａ断面図。AA sectional drawing of FIG. 本発明に係るインシュレータの平面図。The top view of the insulator which concerns on this invention. 本発明に係るインシュレータの平面図。The top view of the insulator which concerns on this invention.

符号の説明Explanation of symbols

１…モータとしてのブラシレスモータ、２…ステータ、５…インシュレータ、６…巻線、７…コアとしてのステータコア、８…ティース部、９…環状部、１０…分割コア、１１…分割環状部、１２，１００，２００…インシュレータ部材、１３，１０３，２０３…連結回動部、１０１，２０１…コアティース被覆部、１０２，２０２…環状被覆部、１０２ｄ，２０２ｄ…周方向端部、１０４…連結凸部、１０５…回動案内面としての凸部円弧面、１０７…鉤凸部、２０４…連結凹部、２０５…回動案内面としての凹部円弧面、２０７…鉤凹部。   DESCRIPTION OF SYMBOLS 1 ... Brushless motor as a motor, 2 ... Stator, 5 ... Insulator, 6 ... Winding, 7 ... Stator core as a core, 8 ... Teeth part, 9 ... Ring part, 10 ... Split core, 11 ... Split ring part, 12 , 100, 200 ... insulator member, 13, 103, 203 ... connecting rotation part, 101, 201 ... core teeth covering part, 102, 202 ... annular covering part, 102d, 202d ... circumferential end part, 104 ... connecting convex part 105: convex circular arc surface as a rotation guide surface, 107: saddle convex portion, 204: connecting concave portion, 205: concave circular arc surface as a rotation guide surface, 207 ... concave portion.

Claims (12)

環状部と該環状部から径方向内側に延びるティース部とを持つコアを周方向にティース部毎に分割した分割コアに装着されるインシュレータであって、
前記ティース部を覆うコアティース被覆部と、
前記コアティース被覆部から前記環状部に沿って延びる環状被覆部と、
前記インシュレータとそのインシュレータに隣接する他の前記インシュレータとの相対回動を可能に連結する連結回動部と、を備え、
前記連結回動部は、前記環状被覆部の周方向端部に備えられた軸方向に突出する連結凸部、または、軸方向に窪み連結凸部と軸方向に嵌合する連結凹部を備え、
前記連結凸部はその外周に円弧形状をなす回動案内面を有し、前記連結凹部はその内周に円弧形状をなす回動案内面を有し、隣接する両インシュレータにおいて前記連結凹部に前記連結凸部が嵌合した状態で両インシュレータを相対回動させるときそれらの回動案内面により連結凸部と連結凹部との回動案内が可能に構成される
ことを特徴とするインシュレータ。 An insulator attached to a split core obtained by dividing a core having an annular part and a tooth part extending radially inward from the annular part for each tooth part in the circumferential direction,
A core teeth covering portion covering the teeth portion;
An annular covering portion extending along the annular portion from the core teeth covering portion;
A connecting rotation part that connects the insulator and the other insulator adjacent to the insulator so as to enable relative rotation; and
The coupling turning portion, the coupling protrusion protruding in the axial direction provided in the circumferential end portion of the annular covering part, or a consolidated recesses that match fitted to the connecting boss and axially recess in the axial direction Prepared,
The connection convex portion has a rotation guide surface having an arc shape on an outer periphery thereof, and the connection recess has a rotation guide surface having an arc shape on an inner periphery thereof, and the connection recesses are adjacent to the connection recess in both adjacent insulators. An insulator characterized in that when both insulators are rotated relative to each other in a state in which the connecting convex portions are fitted, the rotating guide surfaces can turn the connecting convex portions and the connecting concave portions . 請求項１に記載のインシュレータにおいて、Insulator according to claim 1,
前記連結回動部は、前記環状部の径方向幅中心より外径側に回動中心を有するThe connecting rotation part has a rotation center on the outer diameter side from the radial width center of the annular part.
ことを特徴とするインシュレータ。An insulator characterized by that. 請求項１または２に記載のインシュレータにおいて、The insulator according to claim 1 or 2,
前記連結凸部は、前記環状被覆部から前記分割コア側に向けて突出するThe connecting convex portion protrudes from the annular covering portion toward the split core side.
ことを特徴とするインシュレータ。An insulator characterized by that. 環状部と該環状部から径方向内側に延びるティース部とを持つコアを周方向にティース部毎に分割した分割コアに装着されるインシュレータであって、An insulator attached to a split core obtained by dividing a core having an annular part and a tooth part extending radially inward from the annular part for each tooth part in the circumferential direction,
前記ティース部を覆うコアティース被覆部と、A core teeth covering portion covering the teeth portion;
前記コアティース被覆部から前記環状部に沿って延びる環状被覆部と、An annular covering portion extending along the annular portion from the core teeth covering portion;
前記インシュレータとそのインシュレータに隣接する他の前記インシュレータとの相対回動を可能に連結する連結回動部と、を備え、A connecting rotation part that connects the insulator and the other insulator adjacent to the insulator so as to enable relative rotation; and
前記連結回動部は、前記環状被覆部の周方向端部に備えられた軸方向に突出する連結凸部、または、軸方向に窪み連結凸部と嵌合する軸方向に窪む連結凹部を備え、前記環状部の径方向幅中心より外径側に回動中心を有し、The connecting rotation portion includes a connecting projection protruding in the axial direction provided at a circumferential end of the annular covering portion, or a connecting recess recessed in the axial direction that fits in a recess in the axial direction. And having a rotation center on the outer diameter side from the radial width center of the annular portion,
前記連結凸部は、前記環状被覆部から前記分割コア側に向けて突出するThe connecting convex portion protrudes from the annular covering portion toward the split core side.
ことを特徴とするインシュレータ。An insulator characterized by that. 請求項４に記載のインシュレータにおいて、
前記連結凸部又は前記連結凹部は、隣接するインシュレータに備えられた連結凹部又は連結凸部との回動を案内する回動案内面を備える
ことを特徴とするインシュレータ。 The insulator according to claim 4 ,
The said connection convex part or the said connection recessed part is equipped with the rotation guide surface which guides rotation with the connection recessed part or connection convex part with which the adjacent insulator was equipped. The insulator characterized by the above-mentioned. 環状部と該環状部から径方向内側に延びるティース部とを持つコアを周方向にティース部毎に分割した分割コアに装着されるインシュレータであって、
前記ティース部を覆うコアティース被覆部と、
前記コアティース被覆部から前記環状部に沿って延びる環状被覆部と、
前記インシュレータとそのインシュレータに隣接する他の前記インシュレータとの相対回動を可能に連結する連結回動部と、を備え、
前記連結回動部は、前記環状被覆部の周方向端部に備えられた軸方向に突出する連結凸部、または、軸方向に窪み連結凸部と嵌合する軸方向に窪む連結凹部を備え、前記環状部の径方向幅中心より外径側に回動中心を有し、
前記連結凸部又は前記連結凹部は、隣接するインシュレータに備えられた連結凹部又は連結凸部との回動を案内する回動案内面を備え、
前記回動案内面は半円弧未満の円弧面である
ことを特徴とするインシュレータ。 An insulator attached to a split core obtained by dividing a core having an annular part and a tooth part extending radially inward from the annular part for each tooth part in the circumferential direction,
A core teeth covering portion covering the teeth portion;
An annular covering portion extending along the annular portion from the core teeth covering portion;
A connecting rotation part that connects the insulator and the other insulator adjacent to the insulator so as to enable relative rotation; and
The connecting rotation portion includes a connecting projection protruding in the axial direction provided at a circumferential end of the annular covering portion, or a connecting recess recessed in the axial direction that fits in a recess in the axial direction. And having a rotation center on the outer diameter side from the radial width center of the annular portion,
The connection convex portion or the connection concave portion includes a rotation guide surface that guides rotation with the connection concave portion or the connection convex portion provided in an adjacent insulator,
The insulator, wherein the rotation guide surface is an arc surface less than a semicircular arc. 環状部と該環状部から径方向内側に延びるティース部とを持つコアを周方向にティース部毎に分割した分割コアに装着されるインシュレータであって、
前記ティース部を覆うコアティース被覆部と、
前記コアティース被覆部から前記環状部に沿って延びる環状被覆部と、
前記インシュレータとそのインシュレータに隣接する他の前記インシュレータとの相対回動を可能に連結する連結回動部と、を備え、
前記連結回動部は、前記環状被覆部の周方向端部に備えられた軸方向に突出する連結凸部、または、軸方向に窪み連結凸部と嵌合する軸方向に窪む連結凹部を備え、前記環状部の径方向幅中心より外径側に回動中心を有し、
前記連結凸部又は前記連結凹部は、隣接するインシュレータに備えられた連結凹部又は連結凸部との回動を案内する回動案内面を備え、
前記連結凸部は、前記回動案内面の軸方向に沿った方向の一部に、前記連結凸部の突出方向と直交する方向に突出する鉤凸部を備え、
前記連結凹部は、前記鉤凸部に応じた形状を備えた軸方向に延びる溝である鉤凹部を備える
ことを特徴とするインシュレータ。 An insulator attached to a split core obtained by dividing a core having an annular part and a tooth part extending radially inward from the annular part for each tooth part in the circumferential direction,
A core teeth covering portion covering the teeth portion;
An annular covering portion extending along the annular portion from the core teeth covering portion;
A connecting rotation part that connects the insulator and the other insulator adjacent to the insulator so as to enable relative rotation; and
The connecting rotation portion includes a connecting projection protruding in the axial direction provided at a circumferential end of the annular covering portion, or a connecting recess recessed in the axial direction that fits in a recess in the axial direction. And having a rotation center on the outer diameter side from the radial width center of the annular portion,
The connection convex portion or the connection concave portion includes a rotation guide surface that guides rotation with the connection concave portion or the connection convex portion provided in an adjacent insulator,
The connecting convex part includes a hook convex part protruding in a direction perpendicular to the protruding direction of the connecting convex part in a part of the direction along the axial direction of the rotation guide surface,
The said connection recessed part is equipped with the collar recess which is a groove | channel extended in the axial direction provided with the shape according to the said collar convex part. The insulator characterized by the above-mentioned. 請求項７に記載のインシュレータにおいて、
前記鉤凸部は、前記連結凸部の前記回動案内面上に形成され、前記回動中心と前記環状部を形成する円弧の中心とを結ぶ線上以外にその突出方向端部を有する
ことを特徴とするインシュレータ。 The insulator according to claim 7 ,
The hook protrusion is formed on the rotation guide surface of the connection protrusion, and has a protruding direction end other than a line connecting the rotation center and the center of an arc forming the annular portion. Insulator characterized. 請求項７または８に記載のインシュレータにおいて、
前記鉤凹部は、前記連結凹部の前記回動案内面上に形成され、前記回動中心と前記環状部とを形成する円弧の中心を結ぶ線上以外にその底を有する
ことを特徴とするインシュレータ。 The insulator according to claim 7 or 8 ,
The insulator recess is formed on the rotation guide surface of the connection recess, and has a bottom other than a line connecting a center of an arc forming the rotation center and the annular portion. 請求項１〜３，５〜９のいずれか１項に記載のインシュレータにおいて、
前記回動案内面は、前記回動中心を中心とした円弧面状に形成され、
前記回動案内面は、少なくとも前記回動中心から前記環状被覆部の径方向外周までの距離よりも大きな半径を備える円弧から形成される
ことを特徴とするインシュレータ。 The insulator according to any one of claims 1 to 3 and 5 to 9 ,
The rotation guide surface is formed in a circular arc shape centered on the rotation center ,
The insulator is characterized in that the turning guide surface is formed of an arc having a radius larger than at least a distance from the turning center to a radially outer periphery of the annular covering portion. 請求項１〜１０のいずれか１項に記載のインシュレータを備えたステータ。 Stator with an insulator according to any one of claims 1 to 10. 請求項１〜１０のいずれかに１項に記載のインシュレータを備えたモータ。 Motor with an insulator according to item 1 to claim 1-10.
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