TWI580158B - A rotor structure of a synchronous motor - Google Patents
A rotor structure of a synchronous motor Download PDFInfo
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- TWI580158B TWI580158B TW105100469A TW105100469A TWI580158B TW I580158 B TWI580158 B TW I580158B TW 105100469 A TW105100469 A TW 105100469A TW 105100469 A TW105100469 A TW 105100469A TW I580158 B TWI580158 B TW I580158B
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Description
本發明係關於一種同步馬達，特別係關於一種同步馬達之轉子的結構。The present invention relates to a synchronous motor, and more particularly to the structure of a rotor of a synchronous motor.
馬達於現今社會中，無論工業上或者民生方面皆為不可或缺之設備，於近年來馬達的技術也日新月異，市面上馬達種類繁多，相較於其他近代馬達， 同步馬達因其轉子與定子旋轉磁場為同步旋轉，因此沒有感應電流，也無二次銅損，所以具有能量轉換效率高、製程簡單、不須另投入大量資金購買加工設備、生產成本低等優點。In today's society, motors are indispensable equipments for industrial or people's livelihood. In recent years, the technology of motors has been changing with each passing day. There are many types of motors on the market. Compared with other modern motors, synchronous motors rotate with their rotors and stators. The magnetic field is synchronously rotated, so there is no induced current and no secondary copper loss, so it has the advantages of high energy conversion efficiency, simple process, no need to invest a large amount of money to purchase processing equipment, and low production cost.
同步馬達主要是利用磁阻力來運轉，磁阻力有別於一般馬達所運用之勞倫茲力，磁阻力的原理是利用磁力線在空間中形成一封閉迴路時，磁力線會選擇走磁阻最低的路徑，所以當轉子置於定子磁場時，磁力線會驅使轉子移動至磁阻為最低的位置，因轉子主要在於轉子上形成轉子槽，使磁阻產生最大與最小之磁阻差，進而產生磁阻轉矩，如圖1所示，為同步馬達之一轉子90，該轉子90係由一本體91及穿設於該本體91之一主軸92所構成，該本體91之兩端具有一第一端面911及一第二端面912，該第一端面911延伸至該第二端面912之方向為一軸向A ，該本體91軸向A開設複數長條形之穿孔93，各該穿孔93間成形複數連結部94，由於該本體90具有該些穿孔93，使 同步馬達之結構的強度較弱、品質不容易掌握，且應用於較高轉速或低速大扭力之應用場合，該轉子90接近該穿孔93處所產生剪應力與拉伸應力，使轉子結構強度產生問題，甚至損壞。The synchronous motor mainly uses magnetic resistance to operate. The magnetic resistance is different from the Lorentz force used by the general motor. The principle of magnetic resistance is to use magnetic lines of force to form a closed loop in space. The lowest path, so when the rotor is placed in the stator magnetic field, the magnetic lines of force will drive the rotor to the position where the reluctance is the lowest. Because the rotor mainly forms the rotor groove on the rotor, the magnetoresistance produces the largest and smallest magnetoresistance difference, which in turn The reluctance torque, as shown in FIG. 1 , is a rotor 90 of a synchronous motor. The rotor 90 is composed of a main body 91 and a main shaft 92 penetrating the main body 91. The two ends of the main body 91 have a first An end surface 911 and a second end surface 912, the first end surface 911 extends to the second end surface 912 in an axial direction A, and the main body 91 has a plurality of elongated strips 93 in the axial direction A, and each of the through holes 93 The plurality of connecting portions 94 are formed. Since the body 90 has the through holes 93, the structure of the synchronous motor is weak, the quality is not easy to grasp, and the rotor 90 is close to the application in a high speed or low speed large torque application. Perforation 93 Shear stress and the tensile stress generated by the structural strength of the rotor cause problems and even damage.
更甚者，同步馬達之轉子容易具有偏擺、動平衡偏差等缺失，為克服此問題業界便發展出幾種配重之方式，習知配重之方式係藉由於該本體91較重之一側的連結部94開設複數配重孔95，藉此使該本體91整體的重量均衡，惟，此種方式容易使該轉子90之結構更為脆弱，大幅提高損壞之風險。What's more, the rotor of the synchronous motor is prone to eccentricity, dynamic balance deviation, etc. In order to overcome this problem, the industry has developed several ways of weighting. The conventional method of weighting is due to the fact that the body 91 is heavier. The side connecting portion 94 opens the plurality of weight holes 95, thereby equalizing the weight of the body 91 as a whole. However, in this manner, the structure of the rotor 90 is more fragile and the risk of damage is greatly increased.
本發明提供一種同步馬達之轉子的結構，其主要目的係增強同步馬達之結構強度。The invention provides a structure of a rotor of a synchronous motor, the main purpose of which is to enhance the structural strength of the synchronous motor.
其另一目的係提供一種避免破壞馬達結構，即可達成配重效果之同步馬達之轉子的結構。Another object of the present invention is to provide a structure of a rotor of a synchronous motor that avoids damaging the motor structure and achieves a weighting effect.
為達前述目的，本發明同步馬達之轉子的結構，包括：For the foregoing purposes, the structure of the rotor of the synchronous motor of the present invention comprises:
一轉子，該轉子係由一本體及穿設於該本體之一主軸所構成，該本體具有相對之一第一端面及一第二端面，該第一端面延伸至該第二端面之方向為一軸向，該本體軸向開設複數長條形之穿孔，至少一個該穿孔內具有一非導磁性材料。a rotor, the rotor is formed by a main body and a main shaft of the main body, the main body has a first end surface and a second end surface, and the first end surface extends to the second end surface. In the axial direction, the body axially defines a plurality of elongated perforations, and at least one of the perforations has a non-magnetic material.
較佳的，該轉子於重量較重一側之該非導磁性材料開設一配重孔。Preferably, the rotor has a weight hole on the non-magnetic material on the heavier side.
由前述可知，本發明同步馬達之轉子的結構主要藉由於該些穿孔內設置非導磁性材料，藉此增強同步馬達之結構強度，並於該轉子重量較重一側之該非導磁性材料開設該配重孔，以達成提供一種避免破壞馬達結構，即可達成配重效果之同步馬達之轉子的結構之目的。It can be seen from the foregoing that the structure of the rotor of the synchronous motor of the present invention is mainly due to the provision of a non-magnetic material in the perforations, thereby enhancing the structural strength of the synchronous motor, and opening the non-magnetic material on the heavier side of the rotor. The weight hole is provided for the purpose of providing a structure of a rotor of a synchronous motor that avoids damaging the motor structure and achieving a weighting effect.
為使貴審查委員對本發明之目的、特徵及功效能夠有更進一步之瞭解與認識，以下茲配合圖式簡單說明詳述如後：In order to enable your review committee to have a better understanding and understanding of the purpose, features and effects of the present invention, the following is a brief description of the following:
本發明提供一種同步馬達之轉子的結構，如圖2至圖7所示，包括：The invention provides a structure of a rotor of a synchronous motor, as shown in FIG. 2 to FIG. 7, comprising:
一轉子10，該轉子10係由一本體11及穿設於該本體11之一主軸12所構成，該本體11具有相對之一第一端面111及一第二端面112，該第一端面111延伸至該第二端面112之方向為一軸向B ，該本體11軸向B開設複數長條形之穿孔13，至少一個該穿孔13內具有一非導磁性材料20，至少一個該穿孔13內具有一永磁體15，較佳的，該非導磁性材料20 為熱塑性或熱固性之塑料。A rotor 10 is formed by a body 11 and a main shaft 12 extending through the body 11. The body 11 has a first end surface 111 and a second end surface 112. The first end surface 111 extends. The direction of the second end surface 112 is an axial direction B. The main body 11 has a plurality of elongated strips 13 in the axial direction B. At least one of the through holes 13 has a non-magnetic material 20 therein, and at least one of the through holes 13 has A permanent magnet 15, preferably, the non-magnetic material 20 is a thermoplastic or thermosetting plastic.
本發明之第二實施例，如圖4所示，該非導磁性材料20係設置於每一該穿孔13，且該非導磁性材料20分別自該轉子10之該第一端面111及該第二端面112延伸成形一厚度，並覆蓋該第一端面111及該第二端面112，藉此增加該轉子10兩側之結構強度。In the second embodiment of the present invention, as shown in FIG. 4, the non-magnetic material 20 is disposed on each of the through holes 13, and the non-magnetic material 20 is respectively from the first end surface 111 and the second end surface of the rotor 10. The extension 112 is formed to a thickness and covers the first end surface 111 and the second end surface 112, thereby increasing the structural strength of both sides of the rotor 10.
本發明之第三實施例，如圖5及圖6所示，該轉子10具有連接該第一端面111及該第二端面112之一圓周面113，該轉子於該圓周面113軸向B開設至少二凹槽14，該非導磁性材料20設置於每一該穿孔13，該非導磁性材料20分別自該轉子10之該第一端面111及該第二端面112延伸成形一厚度，並覆蓋該第一端面111及該第二端面112，且填滿該些凹槽14，藉此增加該轉子10整體結構之強度。In the third embodiment of the present invention, as shown in FIG. 5 and FIG. 6, the rotor 10 has a circumferential surface 113 connecting the first end surface 111 and the second end surface 112. The rotor is opened in the axial direction B of the circumferential surface 113. At least two recesses 14 , the non-magnetic material 20 is disposed on each of the through holes 13 , and the non-magnetic material 20 is respectively formed from the first end surface 111 and the second end surface 112 of the rotor 10 to form a thickness, and covers the first An end surface 111 and the second end surface 112 fill the recesses 14, thereby increasing the strength of the overall structure of the rotor 10.
較佳的，如圖7所示，該轉子10於重量較重一側之該非導磁性材料20開設至少一配重孔21，藉此使該轉子10的重量平均，達成配重之效果。Preferably, as shown in FIG. 7, the rotor 10 has at least one weight hole 21 on the non-magnetic material 20 on the heavier side, thereby averaging the weight of the rotor 10 to achieve a weighting effect.
由前述可知，本發明同步馬達之轉子的結構主要藉由於該些穿孔13內設置非導磁性材料20，藉此增強同步馬達之結構強度，並於該轉子10重量較重一側之該非導磁性材料20開設該配重孔21，以達成提供一種避免破壞馬達結構，即可達成配重效果之同步馬達之轉子的結構之目的。It can be seen from the foregoing that the structure of the rotor of the synchronous motor of the present invention is mainly due to the provision of the non-magnetic conductive material 20 in the through holes 13, thereby enhancing the structural strength of the synchronous motor, and the non-magnetic permeability on the heavier side of the rotor 10 The material 20 opens the weight hole 21 to achieve the purpose of providing a structure of a rotor of a synchronous motor that avoids damaging the motor structure and achieving a weighting effect.
惟以上所述者，僅為本發明之較佳實施例，當不能以此限定本發明實施之範圍，即大凡依本發明申請專利範圍及發明說明書內容所作之等效變化與修飾，皆應仍屬本發明專利涵蓋之範圍內。However, the above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the equivalent changes and modifications made by the scope of the invention and the contents of the invention are still It is within the scope of the patent of the present invention.
《習知技術》"Knowledge Technology"
90‧‧‧轉子90‧‧‧Rotor
91‧‧‧本體91‧‧‧Ontology
92‧‧‧主軸92‧‧‧ Spindle
911‧‧‧第一端面911‧‧‧ first end
912‧‧‧第二端面912‧‧‧ second end
93‧‧‧穿孔93‧‧‧Perforation
94‧‧‧連結部94‧‧‧Connecting Department
95‧‧‧配重孔95‧‧‧weight hole
A‧‧‧軸向A‧‧‧Axial
《本發明》"this invention"
10‧‧‧轉子10‧‧‧Rotor
11‧‧‧本體11‧‧‧Ontology
111‧‧‧第一端面111‧‧‧ first end face
112‧‧‧第二端面112‧‧‧second end face
113‧‧‧圓周面113‧‧‧circular surface
12‧‧‧主軸12‧‧‧ Spindle
13‧‧‧穿孔13‧‧‧Perforation
14‧‧‧凹槽14‧‧‧ Groove
15‧‧‧永磁體15‧‧‧ permanent magnet
20‧‧‧非導磁性材料20‧‧‧Non-magnetic materials
21‧‧‧配重孔21‧‧‧With heavy holes
B‧‧‧軸向B‧‧‧Axial
圖1 為習知同步馬達之立體圖。 圖2 為本發明同步馬達之轉子的結構之立體圖。 圖3 為本發明同步馬達之轉子的結構之立體圖。 圖4 為本發明同步馬達之轉子的結構第二實施例之立體圖。 圖5 為同步馬達另一態樣之立體圖。 圖6 為本發明同步馬達之轉子的結構第三實施例之立體圖。 圖7 為本發明同步馬達之轉子的結構較佳實施例之立體圖。Figure 1 is a perspective view of a conventional synchronous motor. 2 is a perspective view showing the structure of a rotor of a synchronous motor of the present invention. Fig. 3 is a perspective view showing the structure of a rotor of a synchronous motor of the present invention. Figure 4 is a perspective view showing a second embodiment of the structure of the rotor of the synchronous motor of the present invention. Figure 5 is a perspective view of another aspect of the synchronous motor. Figure 6 is a perspective view showing a third embodiment of the structure of the rotor of the synchronous motor of the present invention. Fig. 7 is a perspective view showing a preferred embodiment of the structure of the rotor of the synchronous motor of the present invention.
10‧‧‧轉子 10‧‧‧Rotor
11‧‧‧本體 11‧‧‧Ontology
111‧‧‧第一端面 111‧‧‧ first end face
112‧‧‧第二端面 112‧‧‧second end face
113‧‧‧圓周面 113‧‧‧circular surface
12‧‧‧主軸 12‧‧‧ Spindle
13‧‧‧穿孔 13‧‧‧Perforation
14‧‧‧凹槽 14‧‧‧ Groove
20‧‧‧非導磁性材料 20‧‧‧Non-magnetic materials
B‧‧‧軸向 B‧‧‧Axial
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW105100469A TWI580158B (en) | 2016-01-08 | 2016-01-08 | A rotor structure of a synchronous motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW105100469A TWI580158B (en) | 2016-01-08 | 2016-01-08 | A rotor structure of a synchronous motor |
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| Publication Number | Publication Date |
|---|---|
| TWI580158B true TWI580158B (en) | 2017-04-21 |
| TW201725833A TW201725833A (en) | 2017-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW105100469A TWI580158B (en) | 2016-01-08 | 2016-01-08 | A rotor structure of a synchronous motor |
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| Country | Link |
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| TW (1) | TWI580158B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989002669A1 (en) * | 1987-09-17 | 1989-03-23 | Fanuc Ltd | Rotor structure of synchronous motor |
| US5157297A (en) * | 1989-06-26 | 1992-10-20 | Fanuc, Ltd. | Structure of radial type rotor |
| JPH06225486A (en) * | 1993-01-20 | 1994-08-12 | Fanuc Ltd | Rotor of synchronous motor |
| WO2011132250A1 (en) * | 2010-04-19 | 2011-10-27 | トヨタ自動車株式会社 | Rotor for an embedded-magnet synchronous motor |
-
2016
- 2016-01-08 TW TW105100469A patent/TWI580158B/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989002669A1 (en) * | 1987-09-17 | 1989-03-23 | Fanuc Ltd | Rotor structure of synchronous motor |
| US5157297A (en) * | 1989-06-26 | 1992-10-20 | Fanuc, Ltd. | Structure of radial type rotor |
| JPH06225486A (en) * | 1993-01-20 | 1994-08-12 | Fanuc Ltd | Rotor of synchronous motor |
| WO2011132250A1 (en) * | 2010-04-19 | 2011-10-27 | トヨタ自動車株式会社 | Rotor for an embedded-magnet synchronous motor |
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| Publication number | Publication date |
|---|---|
| TW201725833A (en) | 2017-07-16 |
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