200824227 九、發明說明： 【發明所屬之技術領域】 *圓开 相直流馬達結構，尤指—種具有三個角之定子 ^开4子’以及制_子式的三相直流馬達 【先前技術】 在許多的制場合巾，對料式小魏錢馬達 =曰皱增加，尤其是在許多f訊產品中，隨著資訊產。雕 ，的快速縮小，對包含於f訊產品中的馬達1 = ==動馬達等的要求也更加強調小型化與扁;: 子的線槽外徑將快速的縮小 ：二 小而造成難以製造生產、以及造成馬達雷磁；; 變小而造成輪出轉矩縮小的_。 、有效力月 線槽m採=轉子架構’目前—般的封閉型外定子 均勻日對稱的際將造成難以繞線生產的問題，且 達線槽架構也將佔據馬達外型盘轉子外和Η 矩縮小的問題。 』有放力^小，而造成輸出轉 因此’在盡量增大轉子有效力劈曰 下，運用-般馬達模組方形外型鱼圓^^轉矩的前提 結合内轉子的架構，將使在有限的空間: = 間， 爲平架構、與提昇輸出轉矩的效益 ==、 旋轉件間的空間存在於四個角落，H = = = 以九十度的線槽間距，無法構 ^相距為九十度， 再风—相馬達，而僅能双單相 200824227 運作中，極二二庐f其在此小型化馬達輸出轉矩極小的 缺而i Hi 述問題的限制下，本發明動機油 轉件間的空二购 馬達無啟動死點、低轉矩漣波等ς異特=化亚且具備三相 【發明内容】 相吉ί ίΤ此’本發明提供一種三相直流馬達結構，該： 才目直流馬達可設計Μ平架構、可小魏 ^ 達無啟動死點、低轉矩漣波等優異特性。/、備—相馬 t明之三相直“達結構，包财 =ΐ射/?磁極。該定子具有-第-角 二第:=鄰=7 二角；5兮筮一 Y r ”、、μ乐—角。该弟一角、該第 該轉子方向延伸有-第-線槽、- 第弟二線槽’且該第一線槽、該第二線槽及該 =二^^別繞設有—第—_、—第二線圈及 =夺ΐ第一線槽與該第二線槽相距機械角度7^ ’该第—線槽與該第三線槽也相距機械角度7 5至8 轉件=由= 模組::外型與_ 線槽架構與間距以及轉=二 單相馬達啟動死點、轉輯波大消=知 200824227 本發明之二相直流馬達具備扁平架構、可小型化、以及可 三相運作無啟動死點、低轉矩漣波、提昇效料優異特性。 以上的概述與接下來的詳細說明皆為示範性質 了進-步說明本發明㈣請專利範圍。而有關本發明的其 他目的與優點’將在後續的說明與圖示加以闊述。 【實施方式】 請參考第-圖，為本發明第一實施例之三相直流馬達 之槽極架構示意圖。本發明揭露之三相直流馬達結構，係 包括有一轉子1與—定子2，該轉子1具有多數個磁極。 該定子2具有-第-角2!Q、—第二角2 χ 2及一第三 角214。其中，該第一角210相鄰第-方向為該第二 角2 1 2，该第-角2 1 〇相鄰第二方向為該第三角2工 4。該第一角2 1 0分別延伸連接第一方向之該第二角2 1 2，以及第二方向之該第三角214。該第一角21〇、 該第二角212及該第三角214分別向該轉子χ方向延 伸有-第-線槽2 1 6、-第二線槽2 1 8及-第三線槽 2 1 9。此外，該第一線槽2 1 6、該第二線槽2 1 8及 忒第二線槽2 1 9分別繞設有一第一線圈wi、一第二線 UW2及-第三線圈W3，該第-線槽2 1 6與該第二線 槽2 18相距機械角度7 5至8 5度，該第一線槽2 1 6 與該第三線槽2 1 9相距機械角度7 5至85度。該第一 線槽2 1 6、忒第一線槽2 18及該第三線槽21 g分別 與該轉子1間隔有一氣隙。 復參考第一圖，該第一線槽2 i 6與該第二線槽2工 8、該第三線槽2 1 9分別設計成相距機械角度8 〇度， 且繞置於弟一線槽2 1 6上之弟一線圈11係分別與繞置 200824227 於該線槽2 1 8與該第三線槽2 χ 9上之第二線圈w 2與第三線UW3分別相距旋轉機械角度8〇度。此外， 轉子1係由一磁石實施之。該磁石充磁磁極可為6極或是 12極，充磁方向為N磁極、§磁極交錯之徑向充磁。 、ί參考第—圖’本發_以轉子1之磁石充磁磁極6 極為實施例，馬達旋轉—圈將構成三次的N、s磁極循環， 故電氣訊號角度為馬達旋轉機械角的3倍。而第一線槽2 6與第二線槽2 1 8相距機械角8 〇度，相當於電‘訊 唬角度2 4 0度，可視為第二線槽2工8與第一線槽2工 2電氣訊號角度相差—！ 2 〇度。而第三線槽2 1 9在與 第一線槽2 1 8相反方向與第一線槽2丄6相距機械角8 0度’加入方向的效益則為機械角—8 〇度，相當於電氣 訊號角度-24 0度可視為第三線槽2 i 9與第—線槽2 1 6電氣訊號角度相差+1 2 0度。因此定子2上，三個 線槽的電氣肢關係為第三線槽2工9、第一線槽2丄 6、第二線槽21 8依序相差工2 〇度，構成三相^達的 運作條件。 此外，根據月ίι述原理，當轉子工之磁石充磁磁極為丄 2極時（未標示），馬達旋轉—圈將構成6次咖、s磁極 循環，故電氣訊號角度為馬達旋轉機械角的六倍，而第一 線槽2 1 6與第二線槽2 1 8相距機械角8 〇度，相當於 電氣訊號角度4 8 0度，可視為第二線槽2丄8與第一線 槽2 1 6電氣訊號肖度相差1 2 Q度。而第三線槽2 1 9 在與第二線槽2 1 8相反方向與第—線槽2丨6相距機械 角8 0度，加入方向的效益則為機械角_8 〇度，相當於 電氣訊號角度-4 8 0度可視為第三線槽2丄9與第一線 200824227 槽2 1 6電氣訊號角度相差一1 2 0度。因此— 三個線槽的電氣角度關係為第二線槽2 ] β ^子2上’ 16、第三=2 19依序相差12〇度，也;構= 馬達的運作條件。 取一相 請參考第二Α圖至第二F圖，係為本 方向與磁力線分佈之示意圖。第二A圖中)〜一纟，之磁通 與第三線圈W3被控制成通電狀態，而第二圈^^ 接狀態。此時，弟-線槽2 1 6感應產生…兹 ：: 槽2 19則感應產生S磁極，第-線槽2!6產生= 極可以吸引轉子1上的充磁s磁極以及拆斥 、兹 而第三線槽2 1 9產生的S磁極可以吸弓丨轉子^上磁極 N磁極以及排斥充磁S磁極。經由前述磁極 上的充磁 第一線槽2 1 Θ產生的N磁與第三線槽Ρ Ί n j互作用， G丄y產生的Q r# 極係可帶動轉子1呈逆時鐘方向轉動，而前述磁 作用所產生的磁力線分佈則呈現於第二;β圖。 、互 第二C圖中，第二線圈W2與第三線圈w 通電狀態，而第一線圈W1為浮接狀態。此時，Μ:制成 2 1 9感應產生Ν磁極而第二線槽2 1 8則咸=、、1才曰 極，第三線槽2 1 9產生的Ν磁極可以吸弓丨生S磁 磁S磁極以及排斥充磁N磁極，而第二線槽^ 上的充 S磁極可以吸引轉子j_上的充磁N磁極以 產生的 極。經由前述磁極的相互作用，第三線槽 磁S磁 磁與第二線槽2 1 8產生的S磁極係可帶動 鐘方向轉動，而前述軸的相互作用所^ ^時 則呈現於第二D圖。 王的磁力線分佈 第二Μ中’第—_W1與第二線圈W2被控制成 200824227 通電狀態，而第三線圈W3為浮接狀態。此時，第二線槽 2 1 8感應產生N磁極而第一線槽2 1 6則感應產生3磁 極，第一線槽2 1 8產生的N磁極可以吸引轉子1上的充 磁S磁極以及排斥充磁N磁極，而第一線槽2丄6產生的 S磁極可以吸㈣子i上的充磁__及排斥充磁§磁 極。經由前述磁極的相互作用，第二線槽2丄8產生的N T與第-線槽2 1 6產生的S磁極係可帶動轉子丄呈逆時 鐘方向轉動，而前述磁極的相互作用所產生的磁力線 則呈現於第二F圖。 根據前述第二A圖至第二F圖可以得知，使用者只要 控制定子2線槽上的線圈通電情形，即可以於線槽上感、應 產生磁極。此外，藉由控制線圈的通電順序即可以於定子 2的線槽上有效的產生—旋轉磁場，而此旋轉磁場係可以 帶動轉子1的轉動’而實現本發明之三相直流馬達可三相 運作操啟動死點、低轉矩漣波、提昇效率等優異特性。 請參考第三圖，為本發明第二實施例之三相直流馬達 =槽極架構示意圖。在本發明第二實施例中的元件與第一 實施例相同者’係以相同符號標示。第二實施例與第一實 施例的電路動作原理與達成的功效相同，經過比較下，其 主要的差異處在於定子的結構。 本發明第二實施例揭露之定子2 0具有一第一角2 =二第二角2 0 2及一第三角2 0 4。其中，該第- L L 第一方向為該第二角2 0 2，該第-角2 〇 ^相心―方向為該第三角2 04。該第-角2〇〇、該 02及該第三角204分別向該轉子1方向延伸 有-弟-線槽2 〇 6、一第二線槽2 〇 8及一第三線槽2 11 200824227 0 9。此外，該第一線槽2 0 6、該第二線槽2 〇 8及該 第三線槽2 0 9分別繞設有一第一線圈wi、一第二線圈 W2及一第三線圈W3，該第一線槽20 6與該第二線槽 2 0 8相距機械角度7 5至8 5度，該第一線槽2 〇 6與 該第三線槽2 0 9相距機械角度7 5至8 5度。該第一線 槽2 0 6、该弟一線槽2 0 8及該第三線槽2 〇 9分別與 該轉子1間隔有一氣隙。 第四Α圖至第四G圖為本發明使用120度六步方波 換相與產生之轉矩波形示意圖。其中，第四A圖到第四c 圖為本發明三相直流馬達之轉矩常數波形示意圖，而本發 明可使用1 2 0度六步方波換相的控制方式來控制三個線 圈的導通情形，如第四D圖到第四F圖所示，根據1 2 0 度六步方波換相的控制方式且可產生轉矩波形，如第四G 圖所示。 此外，本發明也可使用1 8 〇度方波換相的控制方式 來控制三個線圈的導通情形，如第五D圖到第五F圖所 示，根據1 8 0度方波換相的控制方式且可產生轉矩波 形，如第五G圖所示。而第五a圖到第五c圖為本發明三 相直流馬達之轉矩常數波形示意圖。 本發明也可使用1 5 〇度十二步方波換相的控制方式 來才工制一個線圈的導通情形，如第六D圖到第六ρ圖所 示，根據1 5 0度十二步方波換相的控制方式且可產生轉 矩波形’如第六G圖所示。而第六A圖到第六c圖為本發 明二相直流馬達之轉矩常數波形示意圖。 本唤明也可使用1 8 〇度弦波換相的控制方式來控制 二個線圈的導通情形，如第七D圖到第七F圖所示，根據 12 200824227 1 8 0度料換_控 七G圖所示。而笆二Λ 八且可產生定轉矩波形，如第 4乐七Α圖到笛^ ^ 達之轉矩常數波形示音固乐七c圖為本發明三相直流馬 當採用如第四D圖^第 相或如第五D圖至第五？。 ^圖的1 2 0度六步方波換 的硬體可以採用接觸式#圖的1 8 〇度方波換相時，換相 感測器感測轉子旋轉位置=的方式換相，或是無刷式運用 F圖的1 2 〇度六步方你美相。當採用如第圖至第四 硬體方式外，還可以、柄由:相日τ ’除了採用前述兩種換相 動勢，判斷轉子旋轉:置擷取線圈上無導通時段的感應電 與感應器’可構成：感例相’如此可以不需要電刷 當採用無刷式方波換相；目嗔達。 瞬間的方波切換，將容易、，在訊號換相的交界處由於 波，造成振動、噪立導致馬達線圈電感效應產生突 小曰厂口]及P ，、 瞬間方波切換更改為如第乂。」M將訊號換相切換時，由 切換，以降低馬達線圈c斤不之具備-斜率的漸進式 音等特性。該漸進式切突波，造成振動、嗓 器訊號變化斜率、或Η夢 万式’可以藉由引入感測 訊號切換時進行漸進定的時間斜率’以造成方波 接時奐 控制，使用1 8 〇梯形波換相===波= 圏的導通情形，其可細轉矩波形如第九 =到第九C圖為本發明三相直流馬達之轉起常數波形 此外，當馬達啟動瞬開，由於轉速低線圖電屢缺少威 13 200824227 應電動勢的壓制，往往瞬間有較大的電流，容易造成線圈 或是驅動Ic的損壞，且瞬間以最大轉速加速容易造成風 扇啟動時的高噪音，配合本案發明之三相直流馬達結構， 可以採用時序法逐漸加大馬達線圈中的驅動電流，逐漸加 大的方式可以採用PWM式的快速開關切換線圈端電壓， 也可以採用線性控制流過驅動電晶體的電流。相同地，控 制此馬達的轉速大小也可以採用P W Μ式的快速開關切換 線圈端電壓，或是採用線性控制流過驅動電晶體電流的方 式以控制馬達轉速。 上所述，本發明提供之三相直流馬達，其結構包括： 一具有多數個磁極的轉子及一特殊結構之定子’該定子具 有一第一角、一第二角及一第三角，在該第一角相鄰的第 一方向為該第二角，在該第一角相鄰的第二方向為該第三 角。而該第一角、該第二角及該第三角分別向該轉子方向 延伸有一第一線槽、一第二線槽及一第三線槽，且該第一 線槽、該第二線槽及該第三線槽分別繞設有一第一線圈、 一第二線圈及一第三線圈。前述之該第一線槽與該第二線 槽相距機械角度7 5至8 5度，該第一線槽與該第三線槽 相距機械角度75至85度。 根據前述三相直流馬達的結構，係有效運用一般馬達 模組方形外型與圓形旋轉件間的空間，結合内轉子的架 構，並提出原創性的馬達線槽架構與間距以及轉子磁石充 磁磁極設計，以構成三相直流馬達。本發明提供之三相直 流馬達係可有效消除習知單相馬達啟動死點、轉矩漣波 大、效率低的問題，此外，本發明之三相直流馬達具備扁 平架構、可小型化、以及可三相運作無啟動死點、低轉矩 14 200824227 漣波、提昇效率等優異特性。 惟，以上所述，僅為本發明最佳之一的具體實施例之 詳細說明與圖式，任何熟悉該項技藝者在本發明之領域 内，可輕易思及之變化或修飾皆可涵蓋在以下本案之專利 範圍。 【圖式簡單說明】 第一圖為本發明第一實施例三相直流馬達之槽極架構示意 圖； 第二A圖至第二F圖為本發明動作之磁通方向與磁力線分 佈之示意圖； 第三圖為本發明第二實施例三相直流馬達之槽極架構示意 圖， 第四A圖至第四G圖為本發明使用1 2 0度六步方波換相 與產生之轉矩波形示意圖； 第五A圖至第五G圖為本發明使用1 8 0度方波換相與產 生之轉矩波形不意圖， 第六A圖至第六G圖為本發明使用1 5 0度十二步方波換 相與產生之轉矩波形不意圖， 第七A圖至第七G圖為本發明使用1 8 0度弦波換相與產 生之轉矩波形不意圖， 第八圖為具斜率的漸進式波形示意圖；及 第九A圖至第九G圖為本發明使用1 8 0度梯形波換相與 產生之轉矩波形示意圖。 【主要元件符號說明】 15 200824227 轉子1 第一角2 1 0 第三角2 1 4 第二線槽218 第一線圈W1 第三線圈W3 定子2 第二角2 1 2 第一線槽216 第三線槽219 第二線圈W2 16200824227 IX. Description of the invention: [Technical field of invention] * Round-phase DC motor structure, especially a three-phase DC motor with three corners and a three-phase DC motor [Prior Art] In many cases, the material type Wei Wei Qian motor = wrinkle increase, especially in many products, with information products. The rapid shrinking of the carving, the requirements of the motor 1 = == moving motor included in the product of the signal are also more emphasis on miniaturization and flatness; the outer diameter of the sub-slot will be rapidly reduced: two small and difficult to manufacture Production, and causing motor lightning;; Effective force trough trough m mining = rotor structure 'currently the closed outer stator uniform day symmetry will cause difficult winding production problems, and the cable trough structure will also occupy the outer rotor of the motor and the outer rotor The problem of moment reduction. 』There is a force to be small, and the output is turned down. Therefore, in order to increase the rotor's effective force, the premise of using the inner motor module square shape fish circle ^^ torque combined with the inner rotor structure will be Limited space: = between, for the flat structure, with the benefit of increasing the output torque ==, the space between the rotating parts exists in the four corners, H = = = at 90 degrees of the slot spacing, can not be constructed ^ distance Ninety degrees, re-wind-phase motor, and only dual-phase single-phase 200824227 operation, the extreme two-two 庐f in this miniaturized motor output torque is extremely small, the problem of the problem, the engine oil The air supply motor between the transfer parts has no start dead point, low torque ripple, etc., and has three phases. [Inventive content] The present invention provides a three-phase DC motor structure, : The purpose of the DC motor can be designed to flatten the structure, can be small Wei ^ no start dead point, low torque chopping and other excellent features. /, preparation - phase Ma t Ming three-phase straight "up to the structure, Baocai = ΐ / /? magnetic pole. The stator has - the first - angle two: = neighbor = 7 two angles; 5 兮筮 a Y r ",, μ Le - horn. In the corner of the brother, the first rotor direction extends with a -th-line slot, a second-half slot, and the first slot, the second slot, and the second slot are disposed--_ , the second coil and the first coil and the second slot are separated from each other by a mechanical angle 7^ 'the first slot is also separated from the third slot by a mechanical angle of 7 5 to 8 rotation = by = module ::External shape and _ Trunking structure and spacing and turn = two single-phase motor start dead point, transfer wave big elimination = know 200824227 The two-phase DC motor of the invention has a flat structure, can be miniaturized, and can be operated in three phases No start dead point, low torque chopping, excellent performance of lifting effect. The above summary and the following detailed description are exemplary. Further description of the invention (4) is claimed. Other objects and advantages of the present invention will be described in the following description and drawings. [Embodiment] Please refer to the first drawing, which is a schematic diagram of a slot structure of a three-phase DC motor according to a first embodiment of the present invention. The three-phase DC motor structure disclosed in the present invention comprises a rotor 1 and a stator 2, the rotor 1 having a plurality of magnetic poles. The stator 2 has a -th angle 2!Q, a second angle 2 χ 2 and a third angle 214. The first angle 210 adjacent to the first direction is the second angle 2 1 2, and the first angle 2 1 〇 adjacent to the second direction is the third angle 2 . The first angle 2 1 0 extends to connect the second angle 2 1 2 in the first direction and the third angle 214 in the second direction, respectively. The first corner 21 〇, the second corner 212 and the third corner 214 respectively extend toward the rotor 有 with a -th-line groove 2 16 , a second line groove 2 1 8 and a third line groove 2 1 9 . In addition, the first wire slot 2 16 , the second wire slot 2 18 8 and the second wire slot 2 1 9 are respectively disposed with a first coil wi, a second wire UW2 and a third coil W3. The first wire groove 2 16 is spaced from the second wire groove 2 18 by a mechanical angle of 75 to 85 degrees, and the first wire groove 2 16 is spaced from the third wire groove 2 1 9 by a mechanical angle of 75 to 85 degrees. The first wire groove 2 16 , the first wire groove 2 18 and the third wire groove 21 g are respectively spaced apart from the rotor 1 by an air gap. Referring to the first figure, the first slot 2 i 6 and the second slot 2 and the third slot 2 1 9 are respectively designed to be at a mechanical angle of 8 degrees, and are placed around the first slot 2 1 The upper coil one of the coils 11 is respectively rotated by a mechanical angle of 8 degrees from the second coil w 2 and the third line UW3 on the winding groove 2 18 and the third wire groove 2 χ 9 respectively. Further, the rotor 1 is implemented by a magnet. The magnet magnetizing magnetic pole can be 6 poles or 12 poles, the magnetization direction is N magnetic poles, and the magnetic poles are staggered by radial magnetization. For example, the magnet-magnetizing pole 6 of the rotor 1 is an embodiment. The motor rotating coil will constitute three times of N and s magnetic pole cycles, so the electrical signal angle is three times that of the motor rotating mechanical angle. The first slot 6 6 and the second slot 2 1 8 are separated by a mechanical angle of 8 degrees, which is equivalent to an electrical 'twist angle of 2 40 degrees, which can be regarded as the second slot 2 and the first slot 2 2 electrical signal angle difference -! 2 twists. The third slot 2 1 9 is opposite to the first slot 2 1 8 from the first slot 2 丄 6 by a mechanical angle of 80 degrees. The benefit of the joining direction is a mechanical angle of - 8 degrees, which is equivalent to an electrical signal. Angle -24 0 degrees can be regarded as the third line slot 2 i 9 and the first line slot 2 1 6 electrical signal angle difference +1 2 0 degrees. Therefore, on the stator 2, the electrical limb relationship of the three trunkings is the third trunking 2, the first trunking 2丄6, and the second trunking 21 8 sequentially differing by 2 degrees to form a three-phase operation. condition. In addition, according to the principle of the month ί, when the magnet of the rotor is magnetized to a maximum of 2 poles (not shown), the motor rotation-circle will constitute 6 cycles of coffee and s magnetic poles, so the angle of the electrical signal is the mechanical angle of the motor. Six times, and the first slot 2 16 is separated from the second slot 2 1 8 by a mechanical angle of 8 degrees, which corresponds to an electrical signal angle of 480 degrees, which can be regarded as a second slot 2 丄 8 and a first slot 2 1 6 The electrical signal has a difference of 1 2 Q degrees. The third slot 2 1 9 is at a mechanical angle of 80 degrees from the first slot 2 8 6 in the opposite direction to the second slot 2 1 8 , and the benefit of the joining direction is a mechanical angle _8 ,, which is equivalent to an electrical signal. Angle -4 8 0 degrees can be regarded as the third line slot 2丄9 and the first line 200824227 slot 2 1 6 electrical signal angle difference of 1 2 0 degrees. Therefore, the electrical angle relationship of the three trunkings is the second slot 2] β ^ 2 on the '16, the third = 2 19 sequentially differs by 12 degrees, also; = the operating conditions of the motor. Take one phase Please refer to the second to second F diagrams, which is a schematic diagram of the distribution of the direction and magnetic lines. In the second A picture, the magnetic flux and the third coil W3 are controlled to be energized, and the second coil is connected to the state. At this time, the younger-line slot 2 16 is induced to generate...Z:: The slot 2 19 induces the S magnetic pole, and the first-line slot 2!6 generates the pole. The pole can attract the magnetized s magnetic pole on the rotor 1 and the repulsion. The S magnetic pole generated by the third wire slot 2 19 can suck the magnetic pole N magnetic pole and repel the magnetic S magnetic pole. The N magnet generated by the magnetizing first slot 2 1 Θ on the magnetic pole interacts with the third slot Ρ Ί nj, and the Q r# pole generated by G 丄 y can drive the rotor 1 to rotate in the counterclockwise direction, and the foregoing The magnetic field line generated by the magnetic action is presented in the second; β map. In the second C diagram, the second coil W2 and the third coil w are energized, and the first coil W1 is in a floating state. At this time, Μ: made 2 19 to induce the Ν magnetic pole and the second slot 2 1 8 is salty =, 1 is the 曰 pole, and the 线 magnetic pole generated by the third slot 2 1 9 can suck the S magnetic field The S magnetic pole and the repulsive magnetizing N magnetic pole, and the S magnetic pole on the second wiring slot ^ can attract the magnetized N magnetic pole on the rotor j_ to generate the pole. Through the interaction of the magnetic poles, the S-magnetic field generated by the third slot magnetic S magnetic field and the second slot 2 18 can drive the clock direction rotation, and the interaction of the aforementioned axis is presented in the second D diagram. . The magnetic flux distribution of the king in the second ’ 'the first _W1 and the second coil W2 are controlled to be the power state of 200824227, and the third coil W3 is in the floating state. At this time, the second wire slot 2 18 induces an N magnetic pole and the first wire groove 2 16 induces 3 magnetic poles, and the N magnetic pole generated by the first wire groove 2 18 can attract the magnetized S magnetic pole on the rotor 1 and The magnetizing N magnetic pole is repelled, and the S magnetic pole generated by the first wiring groove 2丄6 can absorb the magnetization __ on the (iv) sub i and repel the magnetic § magnetic pole. Through the interaction of the magnetic poles, the NT generated by the second slot 2丄8 and the S-pole generated by the first-line slot 2 16 can drive the rotor 转动 to rotate in a counterclockwise direction, and the magnetic lines of force generated by the interaction of the aforementioned magnetic poles It is then presented in the second F map. According to the foregoing second to second F diagrams, it can be known that the user can control the energization of the coil on the stator 2 slot, that is, the magnetic pole can be generated on the trunk. In addition, by controlling the energization sequence of the coil, the rotating magnetic field can be effectively generated on the slot of the stator 2, and the rotating magnetic field can drive the rotation of the rotor 1 to realize the three-phase operation of the three-phase DC motor of the present invention. It has excellent characteristics such as starting dead point, low torque ripple and improving efficiency. Please refer to the third figure, which is a schematic diagram of a three-phase DC motor according to a second embodiment of the present invention. The elements in the second embodiment of the present invention are the same as those in the first embodiment, and are denoted by the same reference numerals. The circuit operation principle of the second embodiment is the same as that of the first embodiment. After comparison, the main difference lies in the structure of the stator. The stator 20 disclosed in the second embodiment of the present invention has a first angle 2 = two second angles 2 0 2 and a third angle 2 0 4 . The first direction of the first-L L is the second angle 2 0 2 , and the first-angle 2 〇 ^ phase-direction is the third angle 2 04. The first angle 2 〇〇, the 02 and the third angle 204 respectively extend toward the rotor 1 with a ridge-line slot 2 〇6, a second slot 2 〇8, and a third slot 2 11 200824227 0 9 . In addition, the first wire slot 206, the second wire slot 2 〇8, and the third wire slot 209 are respectively disposed with a first coil wi, a second coil W2, and a third coil W3. The first slot 20 6 is at a mechanical angle of 75 to 85 degrees from the second slot 2 0 8 , and the first slot 2 〇 6 is spaced from the third slot 2 0 9 by a mechanical angle of 75 to 85 degrees. The first wire slot 2 0 6 , the first wire slot 2 0 8 and the third wire slot 2 〇 9 are respectively spaced apart from the rotor 1 by an air gap. The fourth to fourth G diagrams are schematic diagrams of the torque waveforms of the present invention using a 120 degree six-step square wave commutation and generation. 4A to 4C are schematic diagrams showing the torque constant waveforms of the three-phase DC motor of the present invention, and the present invention can control the conduction of the three coils by using a control method of a 1 2 0 degree six-step square wave commutation. In the case, as shown in the fourth D to the fourth F, the torque waveform can be generated according to the control mode of the 1 2 0 degree six-step square wave commutation, as shown in the fourth G diagram. In addition, the present invention can also control the conduction of three coils by using a control method of 18-degree square wave commutation, as shown in the fifth D to the fifth F, according to the 180-degree square wave commutation The control mode and the torque waveform can be generated as shown in the fifth G diagram. The fifth to fifth c diagrams are schematic diagrams showing the torque constant waveforms of the three-phase DC motor of the present invention. The present invention can also be used to control the conduction state of a coil by using a 15 〇 12-step square wave commutation control method, as shown in the sixth D to the sixth ρ diagram, according to the steps of 1 50 degrees and 12 steps. The square wave commutation control mode and the torque waveform can be generated as shown in the sixth G diagram. The sixth to sixth c diagrams are schematic diagrams showing the torque constant waveforms of the two-phase DC motor of the present invention. This call can also control the conduction of two coils by using the control method of 1 〇 弦 弦 换 ,, as shown in the seventh D to the seventh F, according to 12 200824227 1 8 0 The seven G diagram is shown. And the second and eighth can produce a constant torque waveform, such as the 4th music chart to the flute ^ ^ The torque constant waveform shows the sound of the music seven c picture is the invention three-phase DC Madang adopts the fourth D Figure ^ Phase or as in the fifth D to fifth? . ^The figure of 1 2 0 degree 6-step square wave commutated hardware can be replaced by the contact type #1 1 〇 方 square wave commutation, the commutation sensor senses the rotor rotation position = the way of commutation, or Brushless use of the F map of 1 2 六 degrees six steps to your beauty. When using the method as shown in the figure to the fourth hardware, it is also possible to use: the phase τ ' in addition to the two kinds of commutation momentums to determine the rotor rotation: the induction current and the induction without the conduction period on the coil The device 'can be constructed: a sense phase' so that no brush can be used when using a brushless square wave commutation; The instantaneous square wave switching will be easy. At the junction of the signal commutation, due to the wave, the vibration and noise will cause the motor coil inductance effect to suddenly appear at the factory mouth] and P, and the instantaneous square wave switching will be changed to the first level. . When M switches the signal to commutate, it is switched to reduce the characteristics of the motor coil and the progressive sound with a slope. The progressive tangential wave causes vibration, the slope of the sinus signal change, or the sneak peek can be performed by introducing a gradual time slope when the sensing signal is switched to cause a square wave connection 奂 control, using 1 8 〇 Trapezoidal wave commutation === wave = 导 conduction condition, its fine torque waveform, such as ninth to ninth C, is the constant waveform of the three-phase DC motor of the present invention. In addition, when the motor starts to turn on, Due to the lack of speed, the low-line diagram is often lacking. Wei 13200824227 The suppression of the electromotive force often results in a large current, which is easy to cause damage to the coil or the drive Ic, and the instantaneous acceleration at the maximum speed easily causes high noise when the fan is started. In the three-phase DC motor structure of the present invention, the driving current in the motor coil can be gradually increased by the time series method, and the PWM type fast switching switch terminal voltage can be adopted in a gradually increasing manner, or the linear control can be used to flow through the driving transistor. Current. Similarly, controlling the speed of the motor can also use the P W 快速 type fast switch to switch the coil terminal voltage, or linearly control the flow through the drive transistor to control the motor speed. As described above, the three-phase DC motor provided by the present invention comprises: a rotor having a plurality of magnetic poles and a stator having a special structure having a first angle, a second angle and a third angle. The first direction adjacent to the first corner is the second angle, and the second direction adjacent to the first corner is the third angle. The first corner, the second corner and the third corner respectively extend a first slot, a second slot and a third slot in the direction of the rotor, and the first slot, the second slot and The third wire groove is respectively wound with a first coil, a second coil and a third coil. The first wire trough is at a mechanical angle of 75 to 85 degrees from the second wire groove, and the first wire groove is at a mechanical angle of 75 to 85 degrees from the third wire groove. According to the structure of the three-phase DC motor described above, the space between the square shape of the general motor module and the circular rotating member is effectively utilized, combined with the structure of the inner rotor, and the original motor trunking structure and spacing and magnet magnet magnetization are proposed. The magnetic pole is designed to form a three-phase DC motor. The three-phase DC motor provided by the invention can effectively eliminate the problems of the conventional single-phase motor starting dead point, large torque ripple and low efficiency, and the three-phase DC motor of the invention has a flat structure, can be miniaturized, and It can operate in three phases without starting dead point, low torque 14 200824227 Chopping, improving efficiency and other excellent characteristics. However, the above description is only a detailed description of the specific embodiments of the present invention, and any one skilled in the art can easily conceive changes or modifications in the field of the present invention. The scope of the patent in this case below. BRIEF DESCRIPTION OF THE DRAWINGS The first figure is a schematic diagram of a slot structure of a three-phase DC motor according to a first embodiment of the present invention; the second A diagram to the second F diagram are schematic diagrams of a magnetic flux direction and a magnetic line distribution of the action of the present invention; 3 is a schematic diagram of a slot structure of a three-phase DC motor according to a second embodiment of the present invention, and FIGS. 4A to 4G are schematic diagrams showing torque waveforms of a 12-step six-step square wave commutation and generation according to the present invention; The fifth to fifth G-pictures are not intended to use the 180-degree square wave commutation and the generated torque waveform, and the sixth to sixth G-pictures are the first and second steps of the present invention. The square wave commutation and the generated torque waveform are not intended. The seventh to seventh G diagrams are not intended to use the 180 sine wave commutation and the generated torque waveform, and the eighth figure is sloped. The progressive waveform diagram; and the ninth to ninth G diagrams are schematic diagrams of the torque waveforms of the 180° ladder wave commutation and generation according to the present invention. [Main component symbol description] 15 200824227 Rotor 1 first angle 2 1 0 third triangle 2 1 4 second slot 218 first coil W1 third coil W3 stator 2 second angle 2 1 2 first slot 216 third slot 219 second coil W2 16