JP3234152U

JP3234152U - motor

Info

Publication number: JP3234152U
Application number: JP2021002710U
Authority: JP
Inventors: 林易鴻; 呉承安; 徐雍智
Original assignee: Delta Electronics Inc
Current assignee: Delta Electronics Inc
Priority date: 2021-06-03
Filing date: 2021-07-12
Publication date: 2021-09-24
Anticipated expiration: 2031-07-12
Also published as: CN215601101U

Abstract

【課題】固定子イ素鋼板の弧状延出部のアーク面が、異なる弧度のアーク面で構成されるモーターを提供する。【解決手段】固定子と回転子３とを備えるモーターであり、固定子は固定子イ素鋼板を備え、固定子イ素鋼板は環状軛部２１と複数の歯部２２とを備える。環状軛部が固定子イ素鋼板の周縁に設けられる。複数の歯部が環状軛部の半径方向に沿って環状軛部に接続され、歯部は弧状延出部２３を備える。弧状延出部はアーク面２３０と第１延出端部２３４と第２延出端部２３５とを備える。アーク面のアーク面中心ｉと回転子との間に隙間幅Ｄを有する。第１延出端部がアーク面の一側端に接続される。第２延出端部がアーク面の他側端に接続される。第１延出端部と中心軸とは第１半径方向を形成し、第２延出端部と中心軸とは第２半径方向を形成し、第１延出端部が第１半径方向に沿って回転子から離れ、第２延出端部が第２半径方向に沿って回転子から離れ、隙間幅が一定に維持される。【選択図】図３PROBLEM TO BE SOLVED: To provide a motor in which an arc surface of an arc-shaped extending portion of a stator steel plate is composed of arc surfaces having different radians. A motor including a stator and a rotor 3, the stator includes a stator steel plate, and the stator steel plate includes an annular yoke portion 21 and a plurality of tooth portions 22. An annular yoke is provided on the periphery of the stator steel plate. A plurality of tooth portions are connected to the annular yoke portion along the radial direction of the annular yoke portion, and the tooth portion includes an arc-shaped extension portion 23. The arc-shaped extending portion includes an arc surface 230, a first extending end portion 234, and a second extending end portion 235. A gap width D is provided between the arc surface center i of the arc surface and the rotor. The first extending end is connected to one end of the arc surface. The second extending end is connected to the other end of the arc surface. The first extending end and the central axis form the first radial direction, the second extending end and the central axis form the second radial direction, and the first extending end is in the first radial direction. The second extending end is separated from the rotor along the second radial direction, and the gap width is kept constant. [Selection diagram] Fig. 3

Description

本考案は、モーターに関し、特に、固定側に固定子を有し、回転側に回転子を有するモーターであって、固定子イ素鋼板の弧状延出部のアーク面に異なる弧度を有するモーターに関する。 The present invention relates to a motor, in particular, a motor having a stator on the fixed side and a rotor on the rotating side, and having a different radian degree on the arc surface of the arc-shaped extending portion of the stator steel plate. ..

モーターの構造には、回転子と固定子とを備えており、固定子は、その上に配置された巻線を備え、回転子は、その上に配置された磁気要素を備える。この構造によって、固定子と回転子との間に発生する磁場が回転子を回転させることができる。 The structure of the motor includes a rotor and a stator, the stator comprising windings arranged on it, and the rotor comprising magnetic elements arranged on it. With this structure, the magnetic field generated between the stator and the rotor can rotate the rotor.

固定子イ素鋼板の成形及び均一に隙間を形成するのが困難であるため、従来のモーターでは、固定子の内側円弧は完全な円形に設計されていることが多い。例えば、固定子の内側円弧が完全な円があるモーター（１０つの磁気要素と１２つのスロットを備えるモーター）が挙げられ、このモーターは、理論上、スロットと極の最小公倍数であるコギングトルクレベル（ｄｅｇｒｅｅ、ｏｒｄｅｒ）が６０である。コギングトルクレベルが小さいと、モーターのコギングトルク及びトルクリップルが大きくなり、モーターの動作が不安定で、振動が発生しやすい。 In conventional motors, the inner arc of the stator is often designed to be a perfect circle because it is difficult to form the stator steel sheet and form gaps uniformly. For example, a motor with a perfect circle inside the stator (a motor with 10 magnetic elements and 12 slots), which is theoretically the least common multiple of slots and poles, the cogging torque level ( The degree (order) is 60. When the cogging torque level is small, the cogging torque and torque ripple of the motor become large, the operation of the motor is unstable, and vibration is likely to occur.

したがって、上記の従来技術を改善することができるモーターをどのように開発するかが必要とされている。 Therefore, there is a need for how to develop a motor that can improve the above-mentioned conventional technology.

本考案の目的は、固定子イ素鋼板の弧状延出部のアーク面の形状は異なる弧度に設計されたモーターを提供することである。これによって、モーターのコギングトルクレベルが増加し、モーターのコギングトルク及びトルクリップルの最適化が実現することができる。また、モーターの震度が低減され、モーターがよりスムーズに動作することができる。されに、コギングトルクの最適化によって、製造工程による製品品質が不均一、又はコギングトルクの変動などを回避でき、製品の統一性を維持することができる。 An object of the present invention is to provide a motor designed so that the shape of the arc surface of the arc-shaped extension portion of the stator steel plate has a different radian degree. As a result, the cogging torque level of the motor is increased, and the cogging torque and torque ripple of the motor can be optimized. In addition, the seismic intensity of the motor is reduced, and the motor can operate more smoothly. In addition, by optimizing the cogging torque, it is possible to avoid uneven product quality due to the manufacturing process, fluctuations in the cogging torque, and the like, and to maintain product uniformity.

本考案のもう一つの目的は、アーク形成前後のモーターの固定子イ素鋼板の弧状延出部の高さ、２つの弧状延出部間のスリットの大きさ、及び固定子イ素鋼板と回転子との間にある隙間幅が一定に維持でき、モーターの出力トルクに影響しないモーターを提供することである。 Another object of the present invention is the height of the arc-shaped extension portion of the stator steel plate of the motor before and after arc formation, the size of the slit between the two arc-shaped extension portions, and the rotation with the stator steel plate. It is to provide a motor that can maintain a constant gap width between the child and the child and does not affect the output torque of the motor.

本考案によれば、固定子と回転子とを備えるモーターを提供し、固定子が回転子を取り囲むように設けられ、回転子は、中心軸を中心として固定子に対して回転し、固定子は固定子イ素鋼板を備え、固定子イ素鋼板は環状軛部と複数の歯部とを備える。環状軛部は、固定子イ素鋼板の外周に設けられる。複数の歯部は、環状軛部の半径方向に沿って環状軛部に接続され、各歯部は弧状延出部を備え、弧状延出部は、環状軛部に空間的に対向するように配置される。弧状延出部はアーク面と第１延出端部と第２延出端部とを備える。アーク面のアーク面中心と回転子との間に隙間幅が設けられる。第１延出端部はアーク面の一側端に接続される。第２延出端部はアーク面の他側端に接続され、アーク面の両側端は互いに反対側に配置される。第１延出端部と中心軸とは第１半径方向を形成し、第２延出端部と中心軸とは第２半径方向を形成し、第１延出端部は、第１半径方向に沿って回転子から離れ、第２延出端部が第２半径方向に沿って回転子から離れるように設けられ、隙間幅が一定に維持される。 According to the present invention, a motor including a stator and a rotor is provided, the stator is provided so as to surround the rotor, and the rotor rotates with respect to the stator about a central axis and the stator. The stator element steel plate is provided, and the stator element steel plate is provided with an annular ridge portion and a plurality of tooth portions. The annular yoke is provided on the outer circumference of the stator steel plate. The plurality of teeth are connected to the annular yoke along the radial direction of the annular yoke, each tooth has an arcuate extension, and the arc extension is spatially opposed to the annular yoke. Be placed. The arc-shaped extending portion includes an arc surface, a first extending end portion, and a second extending end portion. A gap width is provided between the center of the arc surface and the rotor. The first extending end is connected to one end of the arc surface. The second extending end is connected to the other end of the arc surface, and both ends of the arc surface are arranged on opposite sides of each other. The first extending end portion and the central axis form the first radial direction, the second extending end portion and the central axis form the second radial direction, and the first extending end portion forms the first radial direction. The second extending end portion is provided so as to be separated from the rotor along the second radial direction, and the gap width is maintained constant.

本考案によれば、固定子と回転子とを備えるモーターを提供し、回転子が固定子を取り囲むように設けられ、回転子は、固定子を中心として回転し、固定子は固定子イ素鋼板を備え、固定子イ素鋼板は環状軛部と複数の歯部とを備える。環状軛部は固定子イ素鋼板の内周に設けられる。複数の歯部は環状軛部の半径方向に沿って環状軛部に接続され、各歯部は弧状延出部を備え、弧状延出部は、環状軛部に空間的に対向するように配置される。弧状延出部はアーク面と第１延出端部と第２延出端部とを備える。アーク面のアーク面中心と回転子との間に隙間幅を有する。第１延出端部はアーク面の一側端に接続される。第２延出端部はアーク面の他側端に接続され、アーク面の両側端は互いに反対側に配置される。第１延出端部と固定子の中心は第１半径方向を形成し、第２延出端部と固定子の中心は第２半径方向を形成し、第１延出端部が第１半径方向に沿って回転子から離れ、第２延出端部が第２半径方向に沿って回転子から離れ、隙間幅が一定に維持される。 According to the present invention, a motor including a stator and a rotor is provided, the rotor is provided so as to surround the stator, the rotor rotates around the stator, and the stator is a stator element. A steel plate is provided, and the stator steel plate is provided with an annular ridge and a plurality of teeth. The annular yoke is provided on the inner circumference of the stator steel plate. Multiple teeth are connected to the annular yoke along the radial direction of the annular yoke, each tooth has an arcuate extension, and the arcuate extension is spatially opposed to the annular yoke. Will be done. The arc-shaped extending portion includes an arc surface, a first extending end portion, and a second extending end portion. There is a gap width between the center of the arc surface and the rotor. The first extending end is connected to one end of the arc surface. The second extending end is connected to the other end of the arc surface, and both ends of the arc surface are arranged on opposite sides of each other. The center of the first extension end and the stator forms the first radial direction, the center of the second extension end and the stator forms the second radial direction, and the first extension end has the first radius. The second extending end is separated from the rotor along the second radial direction, and the gap width is kept constant.

本考案の好ましい実施形態のモーターの平面図である。It is a top view of the motor of the preferable embodiment of this invention. 本考案の好ましい実施形態の固定子イ素鋼板の平面図である。It is a top view of the stator steel plate of the preferred embodiment of this invention. 図２の部分拡大図である。It is a partially enlarged view of FIG. 図２の固定子イ素鋼板のアーク形成を示す概念図である。It is a conceptual diagram which shows the arc formation of the stator element steel plate of FIG. 図２の固定子イ素鋼板のアーク形成を示す概念図である。It is a conceptual diagram which shows the arc formation of the stator element steel plate of FIG. 図２の固定子イ素鋼板のアーク形成を示す概念図である。It is a conceptual diagram which shows the arc formation of the stator element steel plate of FIG. 図２の固定子イ素鋼板のアーク形成を示す概念図である。It is a conceptual diagram which shows the arc formation of the stator element steel plate of FIG. 図２の固定子イ素鋼板のアーク形成を示す概念図である。It is a conceptual diagram which shows the arc formation of the stator element steel plate of FIG. 異なる第１距離Ｘ１及び第２距離Ｘ２でシミュレートしたコギングトルクを示す図である。It is a figure which shows the cogging torque simulated at the different first distance X1 and the second distance X2. 異なる第１距離Ｘ１及び第２距離Ｘ２のシミュレーションで得られたトルクリップルを示す図である。It is a figure which shows the torque ripple obtained by the simulation of the 1st distance X1 and the 2nd distance X2 which are different. アーク形成前の固定子イ素鋼板のコギングトルクの時間変化及び共鳴周波数を示す図である。It is a figure which shows the time change and the resonance frequency of the cogging torque of the stator steel sheet before arc formation. アーク形成後の固定子イ素鋼板のコギングトルクの時間変化及び共鳴周波数を示す図である。It is a figure which shows the time change and the resonance frequency of the cogging torque of the stator steel sheet after arc formation. 本考案の別の好ましい実施形態のモーターの平面図である。It is a top view of the motor of another preferred embodiment of the present invention.

本考案の特徴および利点を具体化するいくつかの典型的な実施形態は、以下の説明で詳細に説明される。本考案は、実用新案登録請求の範囲から逸脱することなく、様々な変更を加えることができる。また、本考案の明細書及び図面に示されている構造は、本考案を説明するためのものであり、限定するものではない。 Some typical embodiments that embody the features and advantages of the present invention will be described in detail below. The present invention can be modified in various ways without departing from the scope of claims for utility model registration. Further, the structure shown in the specification and drawings of the present invention is for explaining the present invention and is not limited to the present invention.

図１は、本考案の好ましい実施形態におけるモーターの平面図であり、図２は、本考案の好ましい実施形態における固定子イ素鋼板の平面図である。図１及び図２に示すように、本考案の好ましい実施形態によって提供されるモーター１は、固定子２と回転子３とを備え、固定子２は、回転子３を取り囲むように設けられている。回転子３は、中心軸（図示せず）を中心として、固定子２に対して回転する。固定子２は、固定子イ素鋼板２０を備え、固定子イ素鋼板２０は、環状軛部２１と複数の歯部２２とを備え、環状軛部２１が固定子イ素鋼板２０の外周に設けられている。各歯部２２は、環状軛部２１の半径方向に沿って環状軛部２１に接続され、且つ各歯部２２は弧状延出部２３を備え、弧状延出部２３が環状軛部２１に対して空間的に対向している。固定子２は、複数の巻線２４を備え、任意の２つの隣接する歯部２２は収容空間Ｓを形成し、収容空間Ｓは複数の巻線２４のうちの１つを収容するために使用される。 FIG. 1 is a plan view of a motor according to a preferred embodiment of the present invention, and FIG. 2 is a plan view of a stator steel plate according to a preferred embodiment of the present invention. As shown in FIGS. 1 and 2, the motor 1 provided by the preferred embodiment of the present invention includes a stator 2 and a rotor 3, and the stator 2 is provided so as to surround the rotor 3. There is. The rotor 3 rotates about the central axis (not shown) with respect to the stator 2. The stator 2 includes a stator steel plate 20, the stator steel plate 20 includes an annular yoke portion 21 and a plurality of tooth portions 22, and the annular yoke portion 21 is provided on the outer periphery of the stator steel plate 20. It is provided. Each tooth portion 22 is connected to the annular yoke portion 21 along the radial direction of the annular yoke portion 21, and each tooth portion 22 is provided with an arc-shaped extension portion 23, and the arc-shaped extension portion 23 is provided with respect to the annular yoke portion 21. They are spatially opposed to each other. The stator 2 comprises a plurality of windings 24, any two adjacent tooth portions 22 form a containment space S, which is used to accommodate one of the plurality of windings 24. Will be done.

図３は図２の部分拡大図である。図３に示すように、弧状延出部２３はアーク面２３０と第１延出端部２３４と第２延出端部２３５とを備え、アーク面２３０のアーク面中心ｉは、回転子３に対して隙間幅Ｄを有する。第１延出端部２３４は、アーク面２３０の一側端に位置され、第２延出端部２３５は、アーク面２３０の他側端に位置されるので、第１延出端部２３４が第２延出端部２３５の反対側にある。また、隣接する弧状延出部２３間に、スリットＡが設けられている。 FIG. 3 is a partially enlarged view of FIG. As shown in FIG. 3, the arc-shaped extending portion 23 includes an arc surface 230, a first extending end portion 234, and a second extending end portion 235, and the arc surface center i of the arc surface 230 is located on the rotor 3. On the other hand, it has a gap width D. Since the first extending end portion 234 is located at one side end of the arc surface 230 and the second extending end portion 235 is located at the other side end of the arc surface 230, the first extending end portion 234 is located. It is on the opposite side of the second extension end 235. Further, a slit A is provided between the adjacent arc-shaped extending portions 23.

各歯部２２は、第１側面２２１と第２側面２２２とを備え、第１側面２２１及び第２側面２２２は、環状軛部２１と弧状延出部２３との間に接続されている。別の実施形態では、第１側面２２１及び第２側面２２２は互いに平行であるが、本考案はこれに限定されない。 Each tooth portion 22 includes a first side surface 221 and a second side surface 222, and the first side surface 221 and the second side surface 222 are connected between the annular yoke portion 21 and the arc-shaped extension portion 23. In another embodiment, the first side surface 221 and the second side surface 222 are parallel to each other, but the present invention is not limited thereto.

以下、モーター１の固定子イ素鋼板２０のアーク形成について説明する。図４Ａ〜図４Ｅを参照されたい。まず、図４Ａに示すように、アークが形成されていない時、弧状延出部２３のアーク面２３０の初期形状は、単一ラジアンのアーク形状である。次に、図４Ｂに示すように、第１延出端部２３４及び中心軸は第１半径方向Ｌ１を形成し、第２延出端部２３５及び中心軸は第２半径方向Ｌ２を形成し、第１延出端部２３４は、第１半径方向Ｌ１に沿って回転子３を第１距離Ｘ１離れ、第２延出端部２３５は、第２半径方向Ｌ２に沿って回転子３を第１距離Ｘ１離れ、ここでは、隙間幅Ｄが維持されるままである。第１半径方向Ｌ１は、回転子３の中心Ｏから第１延出端部２３４に向かう方向であり、第２半径方向Ｌ２は、回転子３の中心Ｏから第２延出端部２３５に向かう方向である。 Hereinafter, the arc formation of the stator steel plate 20 of the motor 1 will be described. See FIGS. 4A-4E. First, as shown in FIG. 4A, when no arc is formed, the initial shape of the arc surface 230 of the arc-shaped extending portion 23 is a single radian arc shape. Next, as shown in FIG. 4B, the first extending end portion 234 and the central axis form the first radial direction L1, and the second extending end portion 235 and the central axis form the second radial direction L2. The first extending end portion 234 separates the rotor 3 by the first distance X1 along the first radial direction L1, and the second extending end portion 235 first separates the rotor 3 along the second radial direction L2. A distance X1 away, where the gap width D remains maintained. The first radial direction L1 is the direction from the center O of the rotor 3 toward the first extending end portion 234, and the second radial direction L2 is toward the second extending end portion 235 from the center O of the rotor 3. The direction.

図４Ａ及び図４Ｂを参照されたい。第１側面２２１は、弧状延出部２３の第１接続辺２３６に対して第１角度θ１を有し、第２側面２２２は、弧状延出部２３の第２接続辺２３７に対して第２角度θ２を有する。第１延出端部２３４が第１半径方向Ｌ１に沿って回転子３から離れると、第１角度θ１が減少し、第２延出端部２３５が第２半径方向Ｌ２に沿って回転子３から離れると、第２角度θ２が減少する。 See FIGS. 4A and 4B. The first side surface 221 has a first angle θ1 with respect to the first connecting side 236 of the arc-shaped extending portion 23, and the second side surface 222 has a second angle with respect to the second connecting side 237 of the arc-shaped extending portion 23. It has an angle θ2. When the first extending end portion 234 separates from the rotor 3 along the first radial direction L1, the first angle θ1 decreases, and the second extending end portion 235 moves along the second radial direction L2. The second angle θ2 decreases as the distance increases from.

なお、図４Ｂ〜図４Ｅに示されている破線は、図４Ａにおけるアークが形成されていない時の固定子イ素鋼板２０の形状であり、破線の形状は、固定子イ素鋼板２０の初期形状を比較するために使用され、アーク形成前後の差異を示している。 The broken line shown in FIGS. 4B to 4E is the shape of the stator iron steel plate 20 when the arc is not formed in FIG. 4A, and the broken line shape is the initial shape of the stator iron steel plate 20. Used to compare shapes and show differences before and after arc formation.

図４Ｃに示すように、弧状延出部２３のアーク面２３０の弧度が第１弧度Ｒ１に調整され、弧度を調整する過程において、アーク面２３０のアーク面中心ｉの移動距離が第２距離Ｘ２とする。 As shown in FIG. 4C, the radian of the arc surface 230 of the arc-shaped extending portion 23 is adjusted to the first radian R1, and in the process of adjusting the radian, the moving distance of the arc surface center i of the arc surface 230 is the second distance X2. And.

図４Ｄに示すように、アーク線ｋを使用してアーク面２３０の一部に対して、アーク面２３０を弧度が第２弧度Ｒ２である第３アーク面２３２になるようにアークを形成する。これによって、第３アーク面２３２は、アーク線ｋに従って、第１アーク面２３１と第２アーク面２３３との間に凹状に形成され、ここでは、アーク線ｋの円心が回転子３の中心Ｏに位置されることを留意されたい。 As shown in FIG. 4D, the arc line k is used to form an arc on a part of the arc surface 230 so that the arc surface 230 has a third arc surface 232 having an arc degree of R2. As a result, the third arc surface 232 is formed in a concave shape between the first arc surface 231 and the second arc surface 233 according to the arc line k, and here, the center of the arc line k is the center of the rotor 3. Note that it is located in O.

図４Ｅに示すように、弧状延出部２３のアーク面２３０は、弧度が第１弧度Ｒ１である第１アーク面２３１と、弧度が第２弧度Ｒ２である第３アーク面２３２と、弧度が第１弧度Ｒ１である第２アーク面２３３とを順に備え、ここでは、第１弧度Ｒ１と第２弧度Ｒ２との弧度が異なることを留意されたい。また、第３アーク面２３２と回転子３との間の最大距離が隙間幅Ｄに等しい。第１アーク面２３１及び第２アーク面２３３は非円弧形状であり、第３アーク面２３２が円弧形状である。別の実施形態では、第１アーク面２３１及び第２アーク面２３３は平面である。 As shown in FIG. 4E, the arc surface 230 of the arc-shaped extending portion 23 has a first arc surface 231 having an radian of the first radian R1 and a third arc surface 232 having an radian of the second radian R2. It should be noted that the second radian surface 233, which is the first radian R1, is provided in order, and here, the radians of the first radian R1 and the second radian R2 are different. Further, the maximum distance between the third arc surface 232 and the rotor 3 is equal to the gap width D. The first arc surface 231 and the second arc surface 233 have a non-arc shape, and the third arc surface 232 has an arc shape. In another embodiment, the first arc surface 231 and the second arc surface 233 are flat.

本考案では、固定子イ素鋼板２０の弧状延出部２３のアーク面２３０の形状が複数の異なる弧度に設計されることによって、モーター１のコギングトルクレベルを向上させ、モーター１のコギングトルク及びトルクリップルを最適化することができる。また、モーター１の振動が低減され、モーター１がよりスムーズに動作することができる。さらに、コギングトルクの最適化によって、モーター１の製造工程による製品品質が不均一、又はコギングトルクの変動などを回避できるため、製品の統一性を維持することができる。 In the present invention, the shape of the arc surface 230 of the arc-shaped extending portion 23 of the stator steel plate 20 is designed to have a plurality of different arc degrees, thereby improving the cogging torque level of the motor 1 and the cogging torque of the motor 1 and the cogging torque of the motor 1. The torque ripple can be optimized. In addition, the vibration of the motor 1 is reduced, and the motor 1 can operate more smoothly. Further, by optimizing the cogging torque, it is possible to avoid uneven product quality due to the manufacturing process of the motor 1 or fluctuations in the cogging torque, so that product uniformity can be maintained.

図３及び図４Ａ〜図４Ｅを参照されたい。本考案のモーター１は、アーク形成前後の固定子イ素鋼板２０の弧状延出部２３の高さｈ及び固定子イ素鋼板２０と回転子３との隙間幅Ｄは変化せず、２つの弧状延出部２３間のスリットＡも変化していない（上述したアーク形成プロセスでは、隣接する弧状延出部２３間の相対距離が変化していない）ので、モーター１の出力トルクに影響しない。 See FIGS. 3 and 4A-4E. In the motor 1 of the present invention, the height h of the arc-shaped extending portion 23 of the stator steel plate 20 and the gap width D between the stator steel plate 20 and the rotor 3 do not change before and after the formation of the arc. Since the slit A between the arc-shaped extension portions 23 has not changed (in the above-mentioned arc forming process, the relative distance between the adjacent arc-shaped extension portions 23 has not changed), the output torque of the motor 1 is not affected.

図５及び図６を参照されたい。図５は、異なる第１距離Ｘ１及び第２距離Ｘ２でシミュレートしたコギングトルクを示す図である。図６は、異なる第１距離Ｘ１及び第２距離Ｘ２でシミュレートしたトルクリップルを示す図である。本考案は、異なる数値の第１距離Ｘ１と第２距離Ｘ２をシミュレートすることにより、モーターがよりスムーズに動作し、モーターの振動量を低減させ、且つモーターの出力トルクに影響しないように、コギングトルク及びトルクリップルを最適化することができる。なお、第１距離Ｘ１及び第２距離Ｘ２の数値は、実際の用途要件（例えば、異なる種類の回転子及び固定子、異なる極対スロット比を有する固定子、又は異なる形状の固定子など）に応じて調整することができ、本考案はこれに限定されない。 See FIGS. 5 and 6. FIG. 5 is a diagram showing cogging torques simulated at different first distances X1 and second distances X2. FIG. 6 is a diagram showing torque ripples simulated at different first distance X1 and second distance X2. The present invention simulates the first distance X1 and the second distance X2 with different numerical values so that the motor operates more smoothly, the vibration amount of the motor is reduced, and the output torque of the motor is not affected. Cogging torque and torque ripple can be optimized. The numerical values of the first distance X1 and the second distance X2 are based on actual application requirements (for example, different types of rotors and stators, stators having different pole-to-slot ratios, or stators having different shapes, etc.). It can be adjusted accordingly, and the present invention is not limited to this.

図７及び図８を参照されたい。図７は、固定子イ素鋼板がアーク形成前のコギングトルクの時間変化及び共鳴周波数を示す図である。図８は、固定子イ素鋼板がアーク形成後のコギングトルクの時間変化及び共鳴周波数を示す図である。図７及び図８より、アーク形成前の固定子イ素鋼板２０の周波数が６０Ｈｚであり、アーク形成後の固定子イ素鋼板２０の共鳴周波数が１８０Ｈｚである。固定子イ素鋼板２０のコギングトルクのレベルが６０から１８０にまで増加することにより、モーター１の振動が低減され、モーター１がよりスムーズに動作し、モーターの性能が向上した。

See FIGS. 7 and 8. FIG. 7 is a diagram showing the time change of the cogging torque and the resonance frequency of the stator steel sheet before arc formation. FIG. 8 is a diagram showing the time change of the cogging torque and the resonance frequency of the stator steel sheet after arc formation. From FIGS. 7 and 8, the frequency of the stator steel sheet 20 before arc formation is 60 Hz, and the resonance frequency of the stator steel sheet 20 after arc formation is 180 Hz. By increasing the level of the cogging torque of the stator steel sheet 20 from 60 to 180, the vibration of the motor 1 was reduced, the motor 1 operated more smoothly, and the performance of the motor was improved.

図７、図８及び図５に示すコギングトルク図より、アーク形成前後のモーター１のコギングトルク比率を計算でき、その結果は、表１に示されている。本考案の固定子イ素鋼板２０のアーク面２３０がアーク形成された後のコギングトルクは、アーク面にアーク形成部を有しない構造（すなわち、アーク面形状が円弧状である）の固定子イ素鋼板に対して、比較的に小さいコギングトルク比率を得ることができる。換言すれば、本考案の第３アーク面２３２は、アーク線ｋに従って、第１アーク面２３１と第２アーク面２３３との間に凹状に設計されることによって、モーター１のコギングトルクの最小化を実現することができる。これによって、モーター１の振動が低減され、モーター１がよりスムーズに動作することができる。 From the cogging torque diagrams shown in FIGS. 7, 8 and 5, the cogging torque ratio of the motor 1 before and after the arc formation can be calculated, and the results are shown in Table 1. The cogging torque after the arc surface 230 of the stator steel sheet 20 of the present invention is arc-formed is a stator having a structure having no arc forming portion on the arc surface (that is, the arc surface shape is arcuate). A relatively small cogging torque ratio can be obtained with respect to the bare steel sheet. In other words, the third arc surface 232 of the present invention is designed to be concave between the first arc surface 231 and the second arc surface 233 according to the arc line k, thereby minimizing the cogging torque of the motor 1. Can be realized. As a result, the vibration of the motor 1 is reduced, and the motor 1 can operate more smoothly.

図９を参照されたい。図９は、本考案の別の好ましい実施形態のモーターの平面図である。本実施形態のモーター１ａと図１に示すモーター１との違いは、図１のモーター１はインナー回転子・アウター固定子のモーターであり、本実施形態におけるモーター１ａはアウター回転子・インナー固定子のモーターである。本実施形態では、固定子のアーク形成は、図１のモーターの固定子のアーク形成と実質的に同じである。具体的に、回転子３ａは、固定子２ａの中心（図示せず）に対して回転し、環状軛部（図示せず）は、固定子イ素鋼板２０ａの内周に設けられる。また、第１延出端部（図示せず）及び固定子２ａの中心は、第１半径方向を形成し、第２延出端部（図示せず）及び固定子２ａの中心は、第２半径方向を形成し、第１延出端部は、第１半径方向に沿って回転子３ａから離れ、第２延出端部は、第２半径方向に沿って回転子３ａから離れるように設けられる。ここでは、隙間幅が維持されるままである。 See FIG. FIG. 9 is a plan view of the motor of another preferred embodiment of the present invention. The difference between the motor 1a of the present embodiment and the motor 1 shown in FIG. 1 is that the motor 1 of FIG. 1 is a motor of an inner rotor / outer stator, and the motor 1a of the present embodiment is an outer rotor / inner stator. Motor. In this embodiment, the stator arc formation is substantially the same as the stator arc formation of the motor of FIG. Specifically, the rotor 3a rotates with respect to the center (not shown) of the stator 2a, and the annular yoke portion (not shown) is provided on the inner circumference of the stator steel plate 20a. Further, the center of the first extension end (not shown) and the stator 2a forms the first radial direction, and the center of the second extension end (not shown) and the stator 2a is the second. The first extending end is provided so as to be separated from the rotor 3a along the first radial direction, and the second extending end is provided so as to be separated from the rotor 3a along the second radial direction. Be done. Here, the gap width remains maintained.

本実施形態では、第１側面と弧状延出部２３ａの第１接続辺とは、第１角度を形成し、第２側面と弧状延出部２３ａの第２接続辺とは、第２角度を形成し、第１延出端部が第１半径方向に沿って回転子３ａから離れると、第１角度が減少し、第２延出端部が第２半径方向に沿って回転子３ａから離れると、第２角度が減少する。隣接する弧状延出部２３ａ間に、スリットが設けられる。また、各歯部２２ａは、第１側面及び第２側面を備え、第１側面及び第２側面は、環状軛部と弧状延出部２３ａとの間に接続される。別の実施形態では、固定子２ａは、複数の巻線２４ａを備え、任意の隣接する２つの歯部２２ａが収容空間を形成し、形成された収容空間は、複数の巻線２４ａのうちの１つを収容するために使用される。 In the present embodiment, the first side surface and the first connecting side of the arc-shaped extending portion 23a form a first angle, and the second side surface and the second connecting side of the arc-shaped extending portion 23a form a second angle. When the first extending end is formed and separated from the rotor 3a along the first radial direction, the first angle decreases and the second extending end is separated from the rotor 3a along the second radial direction. Then, the second angle decreases. A slit is provided between the adjacent arc-shaped extending portions 23a. Further, each tooth portion 22a includes a first side surface and a second side surface, and the first side surface and the second side surface are connected between the annular yoke portion and the arc-shaped extending portion 23a. In another embodiment, the stator 2a comprises a plurality of windings 24a, any two adjacent tooth portions 22a form a containment space, and the formed accommodation space is of the plurality of windings 24a. Used to house one.

第１延出端部が第１半径方向に沿って回転子３ａから離れ、第２延出端部が第２半径方向に沿って回転子３ａから離れると、弧状延出部２３ａのアーク面の弧度は、第１弧度に調整される。弧状延出部２３ａのアーク面の弧度が第１弧度に調整された後、アーク面の一部がアーク線に従ってアークを形成するので、アーク面の一部の弧度が第２弧度に形成される。アーク面は、第１アーク面と、第３アーク面と、第２アーク面とを順に備え、第１アーク面が第１延出端部に接続され、第２アーク面が第２延出端部に接続され、第１アーク面と第２アーク面の弧度が第１弧度であり、第３アーク面の弧度が第２弧度であり、第３アーク面が第１アーク面と第２アーク面との間に接続されている。別の実施形態では、第１アーク面及び第２アーク面は非円弧形状であり、第３アーク面は円弧形状であるが、本考案はこれに限定されない。 When the first extending end portion is separated from the rotor 3a along the first radial direction and the second extending end portion is separated from the rotor 3a along the second radial direction, the arc surface of the arc-shaped extending portion 23a The radian is adjusted to the first radian. After the radian of the arc surface of the arc-shaped extending portion 23a is adjusted to the first radian, a part of the arc surface forms an arc according to the arc line, so that a part of the radian of the arc surface is formed to the second radian. .. The arc surface includes a first arc surface, a third arc surface, and a second arc surface in this order, the first arc surface is connected to the first extension end portion, and the second arc surface is the second extension end. The radians of the first arc plane and the second arc plane are the radians of the first arc plane, the radians of the third arc plane are the radians of the second arc plane, and the third arc plane is the first arc plane and the second arc plane. Is connected to. In another embodiment, the first arc surface and the second arc surface have a non-arc shape, and the third arc surface has an arc shape, but the present invention is not limited thereto.

上述したように、本考案は、固定側に固定子を有し、回転側に回転子を有するモーターを提供しており、当該モーターでは、固定子弧状延出部のアーク面の形状が異なる弧度に設計され、モーターのコギングトルクレベルを増加し、モーターのコギングトルク及びトルクリップルを最適化にすることができる。また、モーターの震度が低減され、モーターがよりスムーズに動作することができる。コギングトルクの最適化によって、モーターの製造工程による製品品質が不均一、又はコギングトルクの変動などを回避できるため、製品の統一性を維持することができる。また、モーターの固定子イ素鋼板がアークを形成する前後、固定子イ素鋼板の弧状延出部の高さ、２つの弧状延出部間のスリットの大きさ、及び固定子イ素鋼板と回転子との間にある隙間幅が一定に維持されるので、モーターの出力トルクへの影響を抑えることができる。 As described above, the present invention provides a motor having a stator on the fixed side and a rotor on the rotating side. In the motor, the arc surface of the stator arc-shaped extension portion has a different arcuate degree. Designed to increase the cogging torque level of the motor and optimize the cogging torque and torque ripple of the motor. In addition, the seismic intensity of the motor is reduced, and the motor can operate more smoothly. By optimizing the cogging torque, it is possible to avoid uneven product quality due to the manufacturing process of the motor, fluctuations in the cogging torque, and the like, so that product uniformity can be maintained. Also, before and after the stator steel plate of the motor forms an arc, the height of the arc-shaped extension of the stator steel plate, the size of the slit between the two arc-shaped extensions, and the stator steel plate. Since the gap width between the rotor and the rotor is kept constant, the influence on the output torque of the motor can be suppressed.

なお、上述した内容は、本考案を説明するための好ましい実施形態にすぎず、本考案は、以上の実施形態に限定されない。本考案が保護を請求しようとする範囲は、添付の実用新案登録請求の範囲によって定義されている。また、本考案は、当該技術分野における技術者によって変更・改良をすることができ、それらの変更・改良は、実用新案登録請求の範囲に含まれている。 It should be noted that the above-mentioned contents are merely preferable embodiments for explaining the present invention, and the present invention is not limited to the above embodiments. The scope of claims for protection of the present invention is defined by the scope of the attached utility model registration claims. In addition, the present invention can be changed / improved by an engineer in the technical field, and those changes / improvements are included in the scope of claims for utility model registration.

１、１ａ：モーター
２、２ａ：固定子
２０、２０ａ：固定子イ素鋼板
３、３ａ：回転子
Ｄ：隙間幅
Ｏ：中心
２１：環状軛部
２２、２２ａ：歯部
２２１：第１側面
２２２：第２側面
２３、２３ａ：弧状延出部
Ａ：スリット
ｈ：高さ
２３０：アーク面
ｉ：アーク面中心
２３１：第１アーク面
２３２：第３アーク面
２３３：第２アーク面
２３４：第１延出端部
２３５：第２延出端部
２３６：第１接続辺
２３７：第２接続辺
２４、２４ａ：巻線
Ｓ：収容空間
ｋ：アーク線
Ｒ１：第１弧度
Ｒ２：第２弧度
Ｌ１：第１半径方向
Ｌ２：第２半径方向
Ｘ１：第１距離
Ｘ２：第２距離
θ１：第１角度
θ２：第２角度 1, 1a: Motor 2, 2a: Stator 20, 20a: Stator radian steel plate 3, 3a: Rotor D: Gap width O: Center 21: Circular radian 22, 22a: Tooth 221: First side surface 222 : Second side surface 23, 23a: Arc-shaped extension A: Slit h: Height 230: Arc surface i: Arc surface center 231: First arc surface 232: Third arc surface 233: Second arc surface 234: First Extension end 235: Second extension end 236: First connection side 237: Second connection side 24, 24a: Winding S: Containment space k: Arc line R1: First arc degree R2: Second arc degree L1: 1st radial direction L2: 2nd radial direction X1: 1st distance X2: 2nd distance θ1: 1st angle θ2: 2nd angle

Claims

A motor including a stator and a rotor, the stator is provided so as to surround the rotor, the rotor rotates about the central axis with respect to the stator, and the stator is The stator element steel plate is provided, and the stator element steel plate includes an annular ridge portion and a plurality of tooth portions.
The annular yoke is provided on the outer circumference of the stator steel plate.
Each of the teeth is connected to the annular yoke along the radial direction of the annular yoke, each tooth has an arcuate extension, and the arcuate extension is spatial to the annular yoke. The arc-shaped extension portion includes an arc surface, a first extension end portion, and a second extension end portion.
There is a gap width between the center of the arc surface of the arc surface and the rotor.
The first extending end is connected to one side of the arc surface,
The second extension end is connected to the other end of the arc surface, and the first extension end and the second extension end are located on opposite sides of each other.
The first extending end portion and the central axis form a first radial direction, and the second extending end portion and the central axis form a second radial direction.
The first extending end portion is provided so as to be separated from the rotor along the first radial direction, and the second extending end portion is provided so as to be separated from the rotor along the second radial direction. The motor is characterized in that the gap width is maintained constant.

The motor according to claim 1, wherein a slit is formed between the adjacent arc-shaped extending portions.

Each of the tooth portions includes a first side surface and a second side surface, and the first side surface and the second side surface are connected between the annular yoke portion and the arc-shaped extension portion, respectively. The motor according to claim 1.

The first side surface and the first connecting side of the arc-shaped extending portion form a first angle, and the second side surface and the second connecting side of the arc-shaped extending portion form a second angle, and the first extending portion is formed. When the protruding end portion separates from the rotor along the first radial direction, the first angle decreases, and when the second extending end portion separates from the rotor along the second radial direction, the first angle decreases. The motor according to claim 3, wherein the second angle is reduced.

The stator comprises a plurality of windings, and any two adjacent teeth form an accommodation space, and the accommodation space accommodates one of the plurality of windings. The motor according to claim 1.

When the first extending end portion separates from the rotor along the first radial direction and the second extending end portion separates from the rotor along the second radial direction, the arc-shaped extending portion The motor according to claim 1, wherein the radian of the arc surface is adjusted to the first radian.

When the radian of the arc surface of the arc-shaped extension portion is adjusted to the first radian, a part of the arc surface follows the arc line to form an arc so that the radian of the arc surface becomes the second radian. The motor according to claim 6, wherein the motor is characterized in that.

The arc surface includes a first arc surface, a third arc surface, and a second arc surface in this order, the first arc surface is connected to the first extending end portion, and the second arc surface is the said. Connected to the second extension end, the arc degree of the first arc surface and the second arc surface is the first arc degree, the arc degree of the third arc surface is the second arc degree, and the third arc The motor according to claim 7, wherein the surface is connected between the first arc surface and the second arc surface.

The motor according to claim 8, wherein the first arc surface and the second arc surface have a non-arc shape, and the third arc surface has an arc shape.

A motor including a stator and a rotor, the rotor is provided so as to surround the stator, the rotor rotates with respect to the center of the stator, and the stator is a stator a. The stator steel plate is provided with a base steel plate, and the stator steel plate is provided with an annular ridge portion and a plurality of tooth portions.
The annular yoke is provided on the inner circumference of the stator steel plate.
Each of the teeth is connected to the annular yoke along the radial direction of the annular yoke, each tooth has an arcuate extension, and the arcuate extension is spatial to the annular yoke. The arc-shaped extension portion includes an arc surface, a first extension end portion, and a second extension end portion.
There is a gap width between the center of the arc surface of the arc surface and the rotor.
The first extending end is connected to one side of the arc surface,
The second extension end is connected to the other end of the arc surface, and the first extension end and the second extension end are located on opposite sides of each other.
The first extending end portion and the central axis form a first radial direction, and the second extending end portion and the central axis form a second radial direction.
The first extending end portion is provided so as to be separated from the rotor along the first radial direction, and the second extending end portion is provided so as to be separated from the rotor along the second radial direction. The motor is characterized in that the gap width is maintained constant.