M400155 五、新型說明： 【新型所屬之技術領域】 本創作係有關一種旋轉電機之定子結構改良，在提供一 種可改善旋轉式電機之振動，並可減少振動噪音之定子結構 改良。 .【先前技術】 v 現今產業界中，常需要提供動力以驅動機械做旋轉、或 _其他形式之運動，此時，常以旋轉式電機（例如馬達）作為動 力來源；由於馬達可將電能或磁能轉換成為機械能，故廣泛 地應用於各種工業、電器、及運輸系統上，已成為一種不可 或缺的設備。 而馬達的種類眾多，·大致可分為永磁式電機、感應式電 機等不同型態。一般而言，馬達之結構係由一轉子以及—定 子所組成，藉由定子產生一旋轉磁場，此旋轉磁場切割轉子 之導艘部分’促使轉子旋轉進而帶動負載。 • 以永磁式馬達為例，請參閱第一圖所示係為習知永磁式 ，馬達10之立體分解圖，其係由轉子11以及定子所組成， 轉子11上設置有磁鐵111，而定子12上則設有複數個極靴 121，磁鐵111及極靴121間所產生的磁通交鏈，即可騍使 子11進行旋轉運動；轉子u可另具有一心轴112，以 轉子11進行旋轉運動時，將機械能傳導出來 ，供作進一步之 使用》 如第二圖所示係、為習知極机121之放大示意圓，其主要 3 M400155 係由主體122及靴頭部123所組成，通常在主體122上繞設 有線圈（圖未示），俾於通電後於靴頭部123上產生磁通效 應。一般而言，極靴121之靴頭部123形狀通常採平滑設計， 當多個極靴121並列環設，各靴頭部123共同形成接近正圓 形之感應面，並形成一磁通環境，以利旋轉運動之進行。 然而，習知之旋轉式電機普遍存在有振動問題，其原因 眾多，若排除製程上的不良因素，其影響因素可舉例如：定 子及轉子槽對數之選用、諳波之產生、以及氣隙磁通密度等。 其中’諧波會造成通過氣隙的磁通波形扭曲，不利於馬達順 暢運轉，換言之，若氣隙磁通波形越接近正弦波時，則諧波 越小，相對的振動也會越小，反之則振動越大；另外，氣隙 磁通密度的強弱亦影響馬達振動的幅值，氣隙磁通密度越 高，振動幅值便會越大。 而上述習知永磁式馬達，各轨頭部共同形成接近正圓形 之感應面，使得轉子與定子之間形成固定間隙。此種馬達於 運轉時所獲得之氣隙磁通密度曲線略呈一方波，而非理磙 態之正弦波，即表減種馬達於運轉時會產 ^ 動現象，進而產生振動噪音。 反<撖 【新型内容】 本創作係之主要目的即在提供—種可改善旋轉式電機之 振動，並可減少振動噪音之定子結構改良。 2作之定子係具有—雜主趙部以及複數定子磁極， 縫隙，衫子磁極係凸設於該主體部内 和而各定子磁極内並形成有一容置空間，該容置空間係用 4 M400155 以容置一轉子；其中，各定子磁極設有由該主體部朝容置空 間延伸之連接部，以及於該連接部末端朝二側縫隙分別延伸 之第、第一齒部，而該第一、第二齒部並朝容置空間形成 有第一、第二圓弧部，且該第一、第二圓弧部之第一、第二 圓心非位於同一位置。 其中，各第一、第二圓弧部共同形成非正圓形之感應面， .使得該感應面與轉子間形成不均勻的間隙，可調整氣隙之寬 度及磁通分佈，以改善旋轉式電機之振動，進而可減少振動 •嗓音。 【實施方式】 本創作之特點’可參閱本案圖式及實施例之詳細說明而 獲得清楚地瞭解。 本創作主要針對一般旋轉電機中之定子加以改良’如第 三圖所示’該旋轉電機2〇係包含有：定子21、轉子22以及 轉轴23 ;其中： • 該定子21係具有一環狀主體部211以及複數定子磁極 ，212，各定子磁極212係凸設於該主體部211内部，各定子磁 極211間係具有縫隙213 ,而各定子磁極212内並形成有一 容置空間214。 該轉子22係設置於該容置空間213中，並與各定子磁極 212間具有氣隙，該轉子22並形成有複數轉子磁極221，而 各轉子磁極221中並設有磁鐵222。 一轉轴23 ’係設於轉子22之中心處，與轉子22連接為 一體0 5 W00155 本案之重點在於：各定子磁極212設有由該主體部211 朝容置空間214延伸之連接部215,請同時參閱第四圖所示， 以及於該連接部215末端朝二側缝隙213分別延伸之第一、 第二齒部216、217，而該第一、第二齒部216、217並朝容 置空間214形成有第一、第二圓弧部218、219，且該第一、 第二圓弧部218、219之第一、第二圓心〇1、〇2非位於同一 位置’而該第一、第二圓弧部218、219之半徑（R1 = R2)相同，. 其中’該第一圓心〇1位置係由該連接部215之中心線（L)位 置朝遠離該第一圓弧部218處偏移；而該第二圓心02位置係 · 由該連接部215之中心線（L)位置朝遠離該第二圓弧部219處 偏移，該環狀主體部211中心點03至第一、第二圓弧部218、 219交接處〇4之距離（R3)係小於第一、第二圓弧部218、219 之半綠（則、R2)，亦即R3<R1、R3<R2。 其中’各第一、第二圓弧部共同形成非正圓形之感應面， 故相對於轉子之外表面形成不均勻的間隙，可調整氣隙之寬 度及磁通分佈，故當旋轉電機啟動後，馬達的振動也可以得 到大幅的改善，亦可減少振動嗓音。 鲁 再者’該轉子22上係進一步設有複數通氣孔223，並可-穿設有鉚釘孔224，可加強轉子22之結構強度，或不穿設鉚 釘孔而保持各通氣孔223之空洞狀態時，可減少轉子之轉動 慣量，並可作為散熱之用。 另外，為了便於控制轉子與定子間之間隙，該第一、第 二圓弧部218、219間可進一步設有一第三圓弧部210，如第 五圖之第二實施例所示，該第三圓弧部21〇係以該中心點〇3 作為圓心’且該圓心角（0)可為0度< 0 <25度，而該距離 6 M400155 R3則為該第三圓弧部210之半徑，其同樣小於第一、第二圓 弧部 218、219 之半徑（Rl、R2)，亦即 R3<R1、R3<R2。 本創作之技術内容及技術特點巳揭示如上，然而熟悉本 項技術之人士仍可能基於本創作之揭示而作各種不背離本案 創作精神之替換及修飾。因此，本創作之保護範圍應不限於 實施例所揭示者，而應包括各種不背離本創作之替換及修 飾，並為以下之申請專利範圍所涵蓋。 _【圖式簡單說明】 第一圖係為習知永磁式馬達之立體分解圖。 第二圖係為習知極勒^之放大不意圖。 第三圖係為本創作中旋轉電機之結構示意圖。 第四圖係為本創作中定子之部分放大結構示意圖。 第五圖係為本創作中定子第二實施例之部分放大結構示 意圖。 M400155 【主要元件符號說明】 半徑Rl、R2 缝隙213 距離R3 容置空間214 中心線L 連接部215 中心點03 第一齒部216 交接處04 第二齒部217 永磁式馬達10 第一圓弧部218 轉子11 第二圓弧部219 磁鐵111 第三圓弧部210 心轴112 第一圓心01 定子12 第二圓心02 極靴121 轉子22 主體122 轉子磁極221 靴頭部123 磁鐵222 旋轉電機20 通氣孔223 定子21 鉚釘孔224 主體部211 定子磁極212 轉軸23M400155 V. New description: [New technical field] This creation is related to the improvement of the stator structure of a rotating electric machine, and provides an improved stator structure which can improve the vibration of the rotating electric machine and reduce the vibration noise. [Prior Art] v In today's industry, it is often necessary to provide power to drive a machine for rotation, or other forms of motion. In this case, a rotary motor (such as a motor) is often used as a power source; Magnetic energy is converted into mechanical energy, so it has become widely used in various industrial, electrical, and transportation systems, and has become an indispensable device. There are many types of motors, and they can be roughly classified into different types such as permanent magnet motors and inductive motors. In general, the structure of the motor consists of a rotor and a stator. The stator generates a rotating magnetic field that cuts the pilot portion of the rotor to cause the rotor to rotate and thereby drive the load. • Take the permanent magnet motor as an example. Please refer to the first figure for a conventional permanent magnet type. The exploded view of the motor 10 is composed of a rotor 11 and a stator. The rotor 11 is provided with a magnet 111 and the stator. 12 is provided with a plurality of pole pieces 121, a magnetic flux interlinking between the magnets 111 and the pole pieces 121, so that the sub-11 can be rotated; the rotor u can have a mandrel 112 and rotate with the rotor 11. When exercising, the mechanical energy is transmitted out for further use. As shown in the second figure, it is an enlarged schematic circle of the conventional polar machine 121, and the main 3 M400155 is composed of the main body 122 and the boot head 123. A coil (not shown) is usually wound around the main body 122 to generate a magnetic flux effect on the boot head 123 after being energized. In general, the shape of the shoe head 123 of the pole piece 121 is generally designed to be smooth. When the plurality of pole pieces 121 are juxtaposed, the shoe heads 123 together form a sensing surface close to a perfect circle and form a magnetic flux environment. Eli rotary motion. However, conventional rotary motors generally have vibration problems for a variety of reasons. If the adverse factors in the process are excluded, the influencing factors include, for example, the selection of the stator and rotor groove pairs, the generation of chopping waves, and the air gap flux. Density, etc. The 'harmonic will cause the magnetic flux waveform through the air gap to be distorted, which is not conducive to the smooth running of the motor. In other words, if the air gap flux waveform is closer to the sine wave, the smaller the harmonic, the smaller the relative vibration, and vice versa. The greater the vibration; in addition, the strength of the air gap flux density also affects the amplitude of the motor vibration, the higher the air gap flux density, the greater the vibration amplitude. In the above conventional permanent magnet type motor, the head portions of the rails collectively form a sensing surface close to a perfect circle, so that a fixed gap is formed between the rotor and the stator. The air gap flux density curve obtained by such a motor during operation is slightly square wave, and is not a sinusoidal wave of the rational state, that is, the watch reduction motor generates a vibration phenomenon during operation, thereby generating vibration noise. Reverse <撖 [New Content] The main purpose of this creation department is to provide an improved stator structure that can improve the vibration of a rotating motor and reduce vibration noise. The stator system of the second embodiment has a heterogeneous main portion and a plurality of stator poles, a slit, and a magnetic pole of the shirt is protruded in the main body portion and an accommodation space is formed in each of the stator magnetic poles. The housing space is 4 M400155. Having a rotor; wherein each of the stator poles is provided with a connecting portion extending from the main body portion toward the accommodating space, and a first and a first tooth portion extending toward the two side slits at the end of the connecting portion, and the first, The second tooth portion is formed with the first and second arc portions toward the accommodating space, and the first and second centers of the first and second arc portions are not at the same position. Wherein, the first and second circular arc portions together form a non-circular sensing surface, so that an uneven gap is formed between the sensing surface and the rotor, and the width of the air gap and the magnetic flux distribution can be adjusted to improve the rotary type. Vibration of the motor, which in turn reduces vibration and noise. [Embodiment] The features of the present invention can be clearly understood by referring to the detailed description of the drawings and the embodiments. This creation is mainly for the improvement of the stator in a general rotating electric machine. As shown in the third figure, the rotary electric machine 2 includes: a stator 21, a rotor 22 and a rotating shaft 23; wherein: • the stator 21 has a ring shape The main body portion 211 and the plurality of stator magnetic poles 212 are protruded from the main body portion 211, and each of the stator magnetic poles 211 has a slit 213, and an accommodation space 214 is formed in each of the stator magnetic poles 212. The rotor 22 is disposed in the accommodating space 213 and has an air gap with each of the stator poles 212. The rotor 22 is formed with a plurality of rotor poles 221, and a magnet 222 is disposed in each of the rotor poles 221. A rotating shaft 23' is disposed at the center of the rotor 22 and is integrally connected to the rotor 22. The focus of the present invention is that each of the stator poles 212 is provided with a connecting portion 215 extending from the main body portion 211 toward the accommodating space 214. Please refer to the fourth figure, and the first and second tooth portions 216 and 217 respectively extending toward the two side slits 213 at the end of the connecting portion 215, and the first and second tooth portions 216 and 217 are facing each other. The first and second circular arc portions 218 and 219 are formed in the space 214, and the first and second circular centers 〇1 and 〇2 of the first and second circular arc portions 218 and 219 are not located at the same position. 1. The radius of the second arc portions 218 and 219 (R1 = R2) is the same, wherein 'the position of the first center circle 1 is from the center line (L) of the connecting portion 215 away from the first arc portion 218 offset; and the second center 02 position is offset from the second arc portion 219 by the center line (L) position of the connecting portion 215, the annular body portion 211 center point 03 to the 1. The distance (R3) of the intersection of the second arc portions 218 and 219 is smaller than the half green of the first and second arc portions 218 and 219 (then, R2). I.e. R3 < R1, R3 < R2. Wherein, the first and second circular arc portions together form a non-circular sensing surface, so that an uneven gap is formed with respect to the outer surface of the rotor, and the width of the air gap and the magnetic flux distribution can be adjusted, so when the rotating electric machine is started After that, the vibration of the motor can be greatly improved, and the vibration and noise can be reduced. Further, the rotor 22 is further provided with a plurality of vent holes 223, and can be provided with rivet holes 224, which can strengthen the structural strength of the rotor 22, or maintain the hollow state of each vent 223 without rivet holes. In time, the moment of inertia of the rotor can be reduced and used as a heat sink. In addition, in order to facilitate the control of the gap between the rotor and the stator, a third arc portion 210 may be further disposed between the first and second arc portions 218 and 219, as shown in the second embodiment of the fifth figure. The third circular arc portion 21 has the center point 〇3 as the center 'and the central angle (0) may be 0 degrees < 0 < 25 degrees, and the distance 6 M400155 R3 is the third circular arc portion 210 The radius is also smaller than the radius (R1, R2) of the first and second circular arc portions 218, 219, that is, R3 < R1, R3 < R2. The technical content and technical features of the present invention are disclosed above, but those skilled in the art may still make various substitutions and modifications without departing from the spirit of the present invention based on the disclosure of the present invention. Therefore, the scope of protection of the present invention is not limited to the embodiments disclosed, but includes various alternatives and modifications that do not depart from the present invention and are covered by the following patent claims. _[Simple diagram of the diagram] The first diagram is an exploded view of a conventional permanent magnet motor. The second figure is a magnified intent of the conventional. The third picture is a schematic diagram of the structure of the rotating electric machine in this creation. The fourth figure is a schematic diagram of a part of the enlarged structure of the stator in the creation. The fifth drawing is a partial enlarged structural view of the second embodiment of the stator in the present creation. M400155 [Description of main component symbols] Radius Rl, R2 Slot 213 Distance R3 accommodating space 214 Center line L Connection part 215 Center point 03 First tooth part 216 Junction 04 Second tooth part 217 Permanent magnet motor 10 First arc Portion 218 Rotor 11 Second arc portion 219 Magnet 111 Third arc portion 210 Mandrel 112 First center 01 Stator 12 Second center 02 Echelon 121 Rotor 22 Main body 122 Rotor pole 221 Boot head 123 Magnet 222 Rotating motor 20 Vent 223 Stator 21 Rivet hole 224 Body portion 211 Stator pole 212 Shaft 23