WO2014190661A1 - Motor rotor structure - Google Patents
Motor rotor structure Download PDFInfo
- Publication number
- WO2014190661A1 WO2014190661A1 PCT/CN2013/085762 CN2013085762W WO2014190661A1 WO 2014190661 A1 WO2014190661 A1 WO 2014190661A1 CN 2013085762 W CN2013085762 W CN 2013085762W WO 2014190661 A1 WO2014190661 A1 WO 2014190661A1
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- WO
- WIPO (PCT)
- Prior art keywords
- rotor core
- piece
- outer rotor
- side wall
- inner rotor
- Prior art date
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
Definitions
- the utility model relates to a rotor structure of an electric machine.
- the existing motor rotor structure mainly includes two types: the first type is that the outer rotor core is nested outside the inner rotor core, and the shock absorbing rubber is filled between the outer rotor core and the inner rotor core, and the damping rubber transmission torque is Relying on the tearing force of the outer rotor core and the inner rotor core on the damping rubber, but when the damping rubber is aged, the way of transmitting the torque will be invalid, and the rotor of the motor is easily damaged when operating, and at the same time, the torque of the motor Increment, the motor rotor of this structure is not suitable.
- the motor rotor of this structure is mostly used in motors with less than 100W power; the second is that the outer rotor core and the inner rotor core are connected by elastic sheets.
- the force is usually dependent on the two end points of the elastic piece and the outer rotor core and the inner rotor core.
- the rotor of this structure has high requirements on the elastic piece, and the elastic piece is required to have uniform force and installation elasticity in all directions. The accuracy of the film is high. If one or a few of the elastic pieces become soft, the balance state will be broken, and the inner rotor core and the outer rotor core will inevitably Now the heart of the different operating states, the motor is running will deteriorate.
- the purpose of the utility model is to provide a rotor structure of a motor, which has the advantages of simple structure, good shock absorption effect, low noise, high reliability and long service life.
- An electric motor rotor structure comprises an inner rotor core and an outer rotor core, wherein an inner shaft of the inner rotor core is provided with a shaft hole through which the rotating shaft can pass, and a cavity for accommodating the inner rotor core is disposed in the middle of the outer rotor core
- the outer rotor core is nested outside the inner rotor core, and a gap is formed between the inner rotor core and the outer rotor core, and a plurality of inner rotor core pieces protrude from the outer side wall of the inner rotor core, and the inner side of the outer rotor core
- the elastic connecting piece is mounted, and the inner rotor core piece and the outer rotor core piece respectively press the front wall
- the elastic connecting member described above is a wave elastic piece.
- the wave shrapnel described above fluctuates in the axial direction of the rotor.
- the outer rotor core and the inner rotor core described above are filled with a damping rubber.
- the outer rotor core of the inner rotor core has a plurality of inner rotor core pieces uniformly extending circumferentially, and a plurality of outer rotor core pieces are uniformly protruded circumferentially on the inner side wall of the outer rotor core.
- the width of the elastic connecting member described above is greater than or equal to the width of the inner rotor core piece, and the width of the elastic connecting member is also greater than or equal to the width of the outer rotor core piece.
- the root portion of the inner rotor core tooth piece is disposed at a first support plane, and the root portion of the outer rotor core tooth piece is provided with a second support plane, and the two side walls of the elastic connecting member respectively abut the first support plane and the second support flat.
- the number of inner rotor core pieces described above is eight, and the number of outer rotor core pieces is also eight.
- the inner wall of the cavity described above is octagonal.
- the utility model has the following effects: 1) The outer rotor core is nested outside the inner rotor core, and a plurality of inner rotor core pieces protrude from the outer side wall of the inner rotor core, and the outer rotor core a plurality of outer rotor core pieces are circumferentially extended on the inner side wall, and each inner rotor core piece is matched with an outer rotor core piece, and each inner rotor core piece is combined with an outer rotor core tooth
- An elastic connecting piece is installed between the pieces, and the inner rotor core piece and the outer rotor core piece respectively press the front wall surface of the elastic connecting piece And the rear wall surface, the structure is simple, the transmission of the torque is transmitted through the front wall surface and the rear wall surface of the elastic connecting member perpendicular to the torque direction, the rotor damping effect of the structure is better, the motor running is more stable, and the motor running is reduced.
- the two side walls of the elastic connecting member are respectively abutted against the outer side wall of the inner rotor core and the inner side wall of the outer rotor core, so that the elastic connecting member does not shift during the operation of the rotor or
- the deformation is firmly fixed between the outer side wall of the inner rotor core and the inner side wall of the outer rotor core, so that the concentricity of the inner rotor core and the outer rotor core during operation is ensured, and the reliability of the motor operation is improved.
- the elastic connecting piece is a wave-shaped elastic piece, and the wave-shaped elastic piece is fluctuated along the axial direction of the rotor.
- the compression and rebound of the wave-shaped elastic piece can effectively resist the fluctuation of the torque, can effectively buffer the torque, and improve the rotor of the motor.
- the shock absorbing ability makes the motor run more smoothly; 3)
- the shock absorbing rubber is filled between the outer rotor core and the inner rotor core, and the shock absorbing rubber
- the elastic buffering function further improves the shock absorbing capacity of the rotor of the motor; 4) a plurality of inner rotor core pieces are uniformly extended circumferentially on the outer side wall of the inner rotor core, and the inner side wall of the outer rotor core is uniformly extended circumferentially
- the rotor core pieces, the two side walls of the elastic connecting member respectively abut the first supporting plane and the second supporting plane, the number of inner rotor core pieces is eight, and the number of outer rotor core pieces is also eight.
- the structure is simple, the number of the inner rotor core piece and the outer rotor core piece is designed reasonably, so that the inner rotor core and the outer rotor core are more evenly stressed, the vibration damping capability of the motor rotor is improved, and the motor rotor is avoided. Uneven force causes damage to the local motor rotor, improves the reliability of the motor rotor, and prolongs the service life of the motor rotor.
- Figure 1 is a perspective view of the present invention.
- Figure 2 is an exploded view of the present invention.
- Figure 3 is a perspective view of the elastic connecting member of the present invention.
- Figure 4 is a plan view of the present invention.
- Figure 5 is a cross-sectional view taken along line AA of Figure 4 .
- Fig. 6 is a cross-sectional view taken along line BB of Fig. 5;
- the utility model relates to a rotor structure of an electric motor, which comprises an inner rotor core 1 and an outer rotor core 2, and an inner shaft core 11 is provided with a shaft hole 11 through which a rotating shaft can pass,
- a rotor 21 for accommodating the inner rotor core 1 is disposed in the middle of the rotor core 2, and the outer rotor core 2 is nested outside the inner rotor core 1, and the inner rotor core 1 and the outer rotor core 2 are formed.
- a plurality of inner rotor core pieces 12 are circumferentially protruded from the outer side wall of the inner rotor core 1, and a plurality of outer rotor core pieces 22 are circumferentially extended on the inner side wall of the outer rotor core 2, and each inner rotor core piece 12 is Cooperating with an outer rotor core tooth piece 22, and each inner rotor core piece 12 is connected with an outer rotor core piece 22 with an elastic connecting piece 3, an inner rotor core piece 12 and an outer rotor
- the core teeth piece 22 presses the front wall surface and the rear wall surface of the elastic connecting member 3, respectively, and the two side walls of the elastic connecting member 3 abut against the outer side wall of the inner rotor core 1 and the inner side wall of the outer rotor core 2, respectively.
- the elastic connecting member 3 is a wave elastic piece.
- the wave shrapnel fluctuates along the axial direction of the rotor.
- the shock absorbing rubber 4 is filled between the outer rotor core 2 and the inner rotor core 1.
- the inner rotor core 1 has a plurality of inner rotor core fins 12 extending uniformly in the circumferential direction on the outer side wall, and a plurality of outer rotor core fins 22 are uniformly protruded circumferentially on the inner side wall of the outer rotor core 2.
- the width L of the elastic connecting member 3 is greater than or equal to the width of the inner rotor core piece 12, and the width L of the elastic connecting member 3 is also greater than or equal to the width of the outer rotor core piece 22.
- the root of the inner rotor core tooth piece 12 is provided with a first support plane 120
- the root of the outer rotor core tooth piece 22 is provided with a second support plane 220
- the two side walls of the elastic connecting member 3 respectively abut the first support plane 120 and the first Two support planes 220.
- the number of inner rotor core pieces 12 is eight
- the number of outer rotor core pieces 22 is also eight.
- the inner wall of the cavity 21 is octagonal.
- the principle of the utility model is: the outer rotor core 2 is nested outside the inner rotor core 1, and each inner rotor core piece 12 is matched with an outer rotor core piece 22, and each inner rotor iron
- An elastic connecting member 3 is disposed between the core tooth piece 12 and an outer rotor core piece 22, and the two side walls of the elastic connecting piece 3 respectively abut the outer side wall of the inner rotor core 1 and the inner side wall of the outer rotor core 2
- the structure is simple, the rotor damping effect is good, the motor running noise is small, and it is suitable for a high-power motor, and the concentricity of the inner rotor core 1 and the outer rotor core 2 during operation is ensured, and the reliability of the motor operation is improved. Extend the life of the motor.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
A motor rotor structure comprises an internal rotor core (1) and an external rotor core (2). The external rotor core (2) is nested outside the internal rotor core (1), and an interval is formed between the internal rotor core (1) and the external rotor core (2). A plurality of internal rotor core tooth plates (12) stretch out circumferentially from an external side wall of the internal rotor core (1), and a plurality of external rotor core tooth plates (22) stretch out from an internal side wall of the external rotor core (2). Each internal rotor core tooth plate (12) correspondingly fits with an external rotor core tooth plate (22), and an elastic connector (3) is mounted between the internal rotor core tooth plate (12) and the external rotor core tooth plate (22). The internal rotor core tooth plate (12) and the external rotor core tooth plate (22) press tightly on a front wall surface and a rear wall surface of the elastic connector (3) separately, and two sidewalls of the elastic connector (3) stick closely to the external side wall of the internal rotor core (1) and the internal side wall of the external rotor core (2) separately. The structure is simple, has good damping effect, small noise, high reliability, and long service life.
Description
一种电机转子结构 Motor rotor structure
技术领域 ： Technical field:
本实用新型涉及一种电机转子结构。 The utility model relates to a rotor structure of an electric machine.
背景技术 ： Background technique :
现有的电机转子结构主要包括两种：第一种是外转子铁芯嵌套在内转子铁 芯外面，在外转子铁芯和内转子铁芯之间填充减震橡胶，减震橡胶传递力矩是 依靠外转子铁芯和内转子铁芯对减震橡胶的撕扯力，但是当减震橡胶老化， 这 种传递力矩的方式就会失效， 而电机转子运行时就容易受损， 同时当电机的扭 力加大， 这种结构的电机转子就不适用， 这种结构的电机转子多数用于功率少 于 100W的电机之中； 第二种就是外转子铁芯和内转子铁芯通过弹性片连接在 一起， 受力通常是依靠弹性片和外转子铁芯、 内转子铁芯接触的两个端点， 这 种结构的电机转子对弹性片的要求很高， 要求弹性片各个方向的受力均匀、安 装弹性片的精度要求高， 如果其中某一个或者某几个弹性片特性变软， 这种平 衡状态将会被打破， 内转子铁芯和外转子铁芯必然会出现不同心的运行状态， 电机运行将会恶化。 The existing motor rotor structure mainly includes two types: the first type is that the outer rotor core is nested outside the inner rotor core, and the shock absorbing rubber is filled between the outer rotor core and the inner rotor core, and the damping rubber transmission torque is Relying on the tearing force of the outer rotor core and the inner rotor core on the damping rubber, but when the damping rubber is aged, the way of transmitting the torque will be invalid, and the rotor of the motor is easily damaged when operating, and at the same time, the torque of the motor Increment, the motor rotor of this structure is not suitable. The motor rotor of this structure is mostly used in motors with less than 100W power; the second is that the outer rotor core and the inner rotor core are connected by elastic sheets. The force is usually dependent on the two end points of the elastic piece and the outer rotor core and the inner rotor core. The rotor of this structure has high requirements on the elastic piece, and the elastic piece is required to have uniform force and installation elasticity in all directions. The accuracy of the film is high. If one or a few of the elastic pieces become soft, the balance state will be broken, and the inner rotor core and the outer rotor core will inevitably Now the heart of the different operating states, the motor is running will deteriorate.
发明内容 ： Summary of the invention:
本实用新型的目的是提供一种电机转子结构， 该结构简单、 减震效果好、 噪音小、 可靠性高、 寿命长。 The purpose of the utility model is to provide a rotor structure of a motor, which has the advantages of simple structure, good shock absorption effect, low noise, high reliability and long service life.
本实用新型的目的是通过下述技术方案予以实现的。 The object of the present invention is achieved by the following technical solutions.
一种电机转子结构，包括内转子铁芯和外转子铁芯， 内转子铁芯中间设置 可容转轴穿过的轴孔， 外转子铁芯中间设置有一个用来容纳内转子铁芯的空 腔， 外转子铁芯嵌套在内转子铁芯外面，内转子铁芯和外转子铁芯之间形成空 隙， 内转子铁芯外侧壁上周向伸出若干内转子铁芯齿片， 外转子铁芯内侧壁上
周向伸出若干外转子铁芯齿片，每个内转子铁芯齿片均与一个外转子铁芯齿片 对应配合，且每个内转子铁芯齿片均与一个外转子铁芯齿片之间安装弹性连接 件， 内转子铁芯齿片和外转子铁芯齿片分别压紧弹性连接件的前壁面和后壁 面， 弹性连接件的两侧壁分别贴紧内转子铁芯的外侧壁和外转子铁芯的内侧 壁。 An electric motor rotor structure comprises an inner rotor core and an outer rotor core, wherein an inner shaft of the inner rotor core is provided with a shaft hole through which the rotating shaft can pass, and a cavity for accommodating the inner rotor core is disposed in the middle of the outer rotor core The outer rotor core is nested outside the inner rotor core, and a gap is formed between the inner rotor core and the outer rotor core, and a plurality of inner rotor core pieces protrude from the outer side wall of the inner rotor core, and the inner side of the outer rotor core On the wall Extending a plurality of outer rotor core pieces circumferentially, each inner rotor core piece is correspondingly matched with an outer rotor core piece, and each inner rotor core piece is between an outer rotor core piece and an outer rotor core piece The elastic connecting piece is mounted, and the inner rotor core piece and the outer rotor core piece respectively press the front wall surface and the rear wall surface of the elastic connecting member, and the two side walls of the elastic connecting member respectively abut the outer side wall and the outer side of the inner rotor core The inner side wall of the rotor core.
上述所述的弹性连接件是波形弹片。 The elastic connecting member described above is a wave elastic piece.
上述所述的波形弹片是沿转子的轴向波动。 The wave shrapnel described above fluctuates in the axial direction of the rotor.
上述所述的外转子铁芯和内转子铁芯之间填充减震橡胶。 The outer rotor core and the inner rotor core described above are filled with a damping rubber.
上述所述的内转子铁芯外侧壁上周向均匀伸出若干内转子铁芯齿片，外转 子铁芯内侧壁上周向均匀伸出若干外转子铁芯齿片。 The outer rotor core of the inner rotor core has a plurality of inner rotor core pieces uniformly extending circumferentially, and a plurality of outer rotor core pieces are uniformly protruded circumferentially on the inner side wall of the outer rotor core.
上述所述的弹性连接件的宽度大于或者等于内转子铁芯齿片的宽度，弹性 连接件的宽度也大于或者等于外转子铁芯齿片的宽度。 The width of the elastic connecting member described above is greater than or equal to the width of the inner rotor core piece, and the width of the elastic connecting member is also greater than or equal to the width of the outer rotor core piece.
上述所述的内转子铁芯齿片的根部设置第一支撑平面，外转子铁芯齿片的 根部设置第二支撑平面，弹性连接件的两侧壁分别贴紧第一支撑平面和第二支 撑平面。 The root portion of the inner rotor core tooth piece is disposed at a first support plane, and the root portion of the outer rotor core tooth piece is provided with a second support plane, and the two side walls of the elastic connecting member respectively abut the first support plane and the second support flat.
上述所述的内转子铁芯齿片的数量是 8个， 外转子铁芯齿片的数量也是 8 个。 上述所述的空腔的内壁是八边形。 The number of inner rotor core pieces described above is eight, and the number of outer rotor core pieces is also eight. The inner wall of the cavity described above is octagonal.
本实用新型与现有技术相比， 具有如下效果： 1 ) 外转子铁芯嵌套在内转 子铁芯外面，内转子铁芯外侧壁上周向伸出若干内转子铁芯齿片， 外转子铁芯 内侧壁上周向伸出若干外转子铁芯齿片，每个内转子铁芯齿片均与一个外转子 铁芯齿片对应配合，且每个内转子铁芯齿片均与一个外转子铁芯齿片之间安装 弹性连接件，内转子铁芯齿片和外转子铁芯齿片分别压紧弹性连接件的前壁面
和后壁面， 该结构简单， 力矩的传递是通过垂直于力矩方向的弹性连接件的前 壁面和后壁面传递， 这种结构的转子减震效果更好， 使电机运行更加平稳， 减 小电机运行噪音， 而且适用于大功率电机， 弹性连接件的两侧壁分别贴紧内转 子铁芯的外侧壁和外转子铁芯的内侧壁，使弹性连接件在转子运行的过程中不 会偏移或者变形，牢牢地固定在内转子铁芯的外侧壁和外转子铁芯的内侧壁之 间， 使得内转子铁芯和外转子铁芯运行工作时的同心度得到保证， 提高电机运 行的可靠性， 延长电机的使用寿命； 2 ) 弹性连接件是波形弹片， 波形弹片是 沿转子的轴向波动， 波形弹片的压缩和回弹都可以有效抵制力矩的波动， 可以 有效缓冲力矩， 提高电机转子的减震能力， 使电机运行更加平稳； 3 ) 外转子 铁芯和内转子铁芯之间填充减震橡胶，减震橡胶具有弹性缓冲作用，进一步提 高电机转子的减震缓冲能力； 4) 内转子铁芯外侧壁上周向均匀伸出若干内转 子铁芯齿片， 外转子铁芯内侧壁上周向均匀伸出若干外转子铁芯齿片， 弹性连 接件的两侧壁分别贴紧第一支撑平面和第二支撑平面，内转子铁芯齿片的数量 是 8个， 外转子铁芯齿片的数量也是 8个， 该结构简单、 内转子铁芯齿片和外 转子铁芯齿片的数量设计合理， 使内转子铁芯和外转子铁芯的受力更加均匀， 提高电机转子的减震能力， 避免电机转子因为受力不均造成局部电机转子损 坏， 提高电机转子的可靠性， 延长电机转子的使用寿命。 Compared with the prior art, the utility model has the following effects: 1) The outer rotor core is nested outside the inner rotor core, and a plurality of inner rotor core pieces protrude from the outer side wall of the inner rotor core, and the outer rotor core a plurality of outer rotor core pieces are circumferentially extended on the inner side wall, and each inner rotor core piece is matched with an outer rotor core piece, and each inner rotor core piece is combined with an outer rotor core tooth An elastic connecting piece is installed between the pieces, and the inner rotor core piece and the outer rotor core piece respectively press the front wall surface of the elastic connecting piece And the rear wall surface, the structure is simple, the transmission of the torque is transmitted through the front wall surface and the rear wall surface of the elastic connecting member perpendicular to the torque direction, the rotor damping effect of the structure is better, the motor running is more stable, and the motor running is reduced. Noise, and suitable for high-power motors, the two side walls of the elastic connecting member are respectively abutted against the outer side wall of the inner rotor core and the inner side wall of the outer rotor core, so that the elastic connecting member does not shift during the operation of the rotor or The deformation is firmly fixed between the outer side wall of the inner rotor core and the inner side wall of the outer rotor core, so that the concentricity of the inner rotor core and the outer rotor core during operation is ensured, and the reliability of the motor operation is improved. 2) Extend the service life of the motor; 2) The elastic connecting piece is a wave-shaped elastic piece, and the wave-shaped elastic piece is fluctuated along the axial direction of the rotor. The compression and rebound of the wave-shaped elastic piece can effectively resist the fluctuation of the torque, can effectively buffer the torque, and improve the rotor of the motor. The shock absorbing ability makes the motor run more smoothly; 3) The shock absorbing rubber is filled between the outer rotor core and the inner rotor core, and the shock absorbing rubber The elastic buffering function further improves the shock absorbing capacity of the rotor of the motor; 4) a plurality of inner rotor core pieces are uniformly extended circumferentially on the outer side wall of the inner rotor core, and the inner side wall of the outer rotor core is uniformly extended circumferentially The rotor core pieces, the two side walls of the elastic connecting member respectively abut the first supporting plane and the second supporting plane, the number of inner rotor core pieces is eight, and the number of outer rotor core pieces is also eight. The structure is simple, the number of the inner rotor core piece and the outer rotor core piece is designed reasonably, so that the inner rotor core and the outer rotor core are more evenly stressed, the vibration damping capability of the motor rotor is improved, and the motor rotor is avoided. Uneven force causes damage to the local motor rotor, improves the reliability of the motor rotor, and prolongs the service life of the motor rotor.
附图说明： BRIEF DESCRIPTION OF THE DRAWINGS:
图 1 是本实用新型的立体图。 Figure 1 is a perspective view of the present invention.
图 2 是本实用新型的分解图。 Figure 2 is an exploded view of the present invention.
图 3 是本实用新型弹性连接件的立体图。 Figure 3 is a perspective view of the elastic connecting member of the present invention.
图 4 是本实用新型的俯视图。 Figure 4 is a plan view of the present invention.
图 5 是图 4的 A-A剖视图。
图 6 是图 5的 B-B剖视图。 Figure 5 is a cross-sectional view taken along line AA of Figure 4 . Fig. 6 is a cross-sectional view taken along line BB of Fig. 5;
具体实施方式： detailed description:
下面通过具体实施例并结合附图对本实用新型作进一步详细的描述。 The present invention will be further described in detail below through the specific embodiments and the accompanying drawings.
如图 1至图 6所示， 本实用新型是一种电机转子结构， 包括内转子铁芯 1 和外转子铁芯 2， 内转子铁芯 1中间设置可容转轴穿过的轴孔 11， 外转子铁芯 2中间设置有一个用来容纳内转子铁芯 1的空腔 21，外转子铁芯 2嵌套在内转 子铁芯 1外面，内转子铁芯 1和外转子铁芯 2之间形成空隙， 内转子铁芯 1外 侧壁上周向伸出若干内转子铁芯齿片 12， 外转子铁芯 2内侧壁上周向伸出若 干外转子铁芯齿片 22， 每个内转子铁芯齿片 12均与一个外转子铁芯齿片 22 对应配合，且每个内转子铁芯齿片 12均与一个外转子铁芯齿片 22之间安装弹 性连接件 3， 内转子铁芯齿片 12和外转子铁芯齿片 22分别压紧弹性连接件 3 的前壁面和后壁面，弹性连接件 3的两侧壁分别贴紧内转子铁芯 1的外侧壁和 外转子铁芯 2的内侧壁。 As shown in FIG. 1 to FIG. 6 , the utility model relates to a rotor structure of an electric motor, which comprises an inner rotor core 1 and an outer rotor core 2, and an inner shaft core 11 is provided with a shaft hole 11 through which a rotating shaft can pass, A rotor 21 for accommodating the inner rotor core 1 is disposed in the middle of the rotor core 2, and the outer rotor core 2 is nested outside the inner rotor core 1, and the inner rotor core 1 and the outer rotor core 2 are formed. a plurality of inner rotor core pieces 12 are circumferentially protruded from the outer side wall of the inner rotor core 1, and a plurality of outer rotor core pieces 22 are circumferentially extended on the inner side wall of the outer rotor core 2, and each inner rotor core piece 12 is Cooperating with an outer rotor core tooth piece 22, and each inner rotor core piece 12 is connected with an outer rotor core piece 22 with an elastic connecting piece 3, an inner rotor core piece 12 and an outer rotor The core teeth piece 22 presses the front wall surface and the rear wall surface of the elastic connecting member 3, respectively, and the two side walls of the elastic connecting member 3 abut against the outer side wall of the inner rotor core 1 and the inner side wall of the outer rotor core 2, respectively.
弹性连接件 3是波形弹片。 The elastic connecting member 3 is a wave elastic piece.
波形弹片是沿转子的轴向波动。 The wave shrapnel fluctuates along the axial direction of the rotor.
外转子铁芯 2和内转子铁芯 1之间填充减震橡胶 4。 The shock absorbing rubber 4 is filled between the outer rotor core 2 and the inner rotor core 1.
内转子铁芯 1外侧壁上周向均匀伸出若干内转子铁芯齿片 12， 外转子铁 芯 2内侧壁上周向均匀伸出若干外转子铁芯齿片 22。 The inner rotor core 1 has a plurality of inner rotor core fins 12 extending uniformly in the circumferential direction on the outer side wall, and a plurality of outer rotor core fins 22 are uniformly protruded circumferentially on the inner side wall of the outer rotor core 2.
弹性连接件 3的宽度 L大于或者等于内转子铁芯齿片 12的宽度， 弹性连 接件 3的宽度 L也大于或者等于外转子铁芯齿片 22的宽度。 The width L of the elastic connecting member 3 is greater than or equal to the width of the inner rotor core piece 12, and the width L of the elastic connecting member 3 is also greater than or equal to the width of the outer rotor core piece 22.
内转子铁芯齿片 12的根部设置第一支撑平面 120， 外转子铁芯齿片 22的 根部设置第二支撑平面 220，弹性连接件 3的两侧壁分别贴紧第一支撑平面 120 和第二支撑平面 220。
内转子铁芯齿片 12的数量是 8个， 外转子铁芯齿片 22的数量也是 8个。 空腔 21的内壁是八边形。 The root of the inner rotor core tooth piece 12 is provided with a first support plane 120, and the root of the outer rotor core tooth piece 22 is provided with a second support plane 220, and the two side walls of the elastic connecting member 3 respectively abut the first support plane 120 and the first Two support planes 220. The number of inner rotor core pieces 12 is eight, and the number of outer rotor core pieces 22 is also eight. The inner wall of the cavity 21 is octagonal.
本实用新型的原理是： 外转子铁芯 2嵌套在内转子铁芯 1外面，每个内转 子铁芯齿片 12均与一个外转子铁芯齿片 22对应配合，且每个内转子铁芯齿片 12均与一个外转子铁芯齿片 22之间安装弹性连接件 3， 弹性连接件 3的两侧 壁分别贴紧内转子铁芯 1的外侧壁和外转子铁芯 2的内侧壁， 该结构简单， 转 子减震效果好、 电机运行噪音小， 而且适用于大功率电机， 内转子铁芯 1和外 转子铁芯 2运行工作时的同心度得到保证， 提高电机运行的可靠性， 延长电机 的使用寿命。
The principle of the utility model is: the outer rotor core 2 is nested outside the inner rotor core 1, and each inner rotor core piece 12 is matched with an outer rotor core piece 22, and each inner rotor iron An elastic connecting member 3 is disposed between the core tooth piece 12 and an outer rotor core piece 22, and the two side walls of the elastic connecting piece 3 respectively abut the outer side wall of the inner rotor core 1 and the inner side wall of the outer rotor core 2 The structure is simple, the rotor damping effect is good, the motor running noise is small, and it is suitable for a high-power motor, and the concentricity of the inner rotor core 1 and the outer rotor core 2 during operation is ensured, and the reliability of the motor operation is improved. Extend the life of the motor.
Claims
1. 一种电机转子结构， 包括内转子铁芯（1)和外转子铁芯（2)， 内转 子铁芯 （1) 中间设置可容转轴穿过的轴孔 （11)， 外转子铁芯 （2) 中间设置 有一个用来容纳内转子铁芯 （1) 的空腔 （21)， 外转子铁芯 （2) 嵌套在内转 子铁芯 （1)外面，内转子铁芯 （1)和外转子铁芯 （2)之间形成空隙， 其特征 在于： 内转子铁芯（1)外侧壁上周向伸出若干内转子铁芯齿片 （12)， 外转子 铁芯（2) 内侧壁上周向伸出若干外转子铁芯齿片（22)， 每个内转子铁芯齿片 1. An electric motor rotor structure comprising an inner rotor core (1) and an outer rotor core (2), wherein an inner shaft core (1) is provided with a shaft hole (11) through which the shaft can pass, and the outer rotor core (2) A cavity (21) for accommodating the inner rotor core (1) is disposed in the middle, and the outer rotor core (2) is nested outside the inner rotor core (1), and the inner rotor core (1) Forming a gap with the outer rotor core (2), characterized in that: the outer rotor core (1) has a plurality of inner rotor core pieces (12) extending circumferentially on the outer side wall, and the outer rotor core (2) is on the inner side wall Extending a plurality of outer rotor core pieces (22) circumferentially, each inner rotor core piece
(12)均与一个外转子铁芯齿片（22)对应配合， 且每个内转子铁芯齿片（12) 均与一个外转子铁芯齿片（ 22 )之间安装弹性连接件（ 3 )，内转子铁芯齿片（ 12 ) 和外转子铁芯齿片 （22) 分别压紧弹性连接件 （3) 的前壁面和后壁面， 弹性 连接件 （3) 的两侧壁分别贴紧内转子铁芯 （1) 的外侧壁和外转子铁芯 （2) 的内侧壁。 (12) are respectively matched with an outer rotor core piece (22), and each inner rotor core piece (12) is fitted with an elastic connecting piece between an outer rotor core piece (22) (3) The inner rotor core piece (12) and the outer rotor core piece (22) respectively press the front wall surface and the rear wall surface of the elastic connecting member (3), and the two side walls of the elastic connecting member (3) are respectively pressed tightly The outer side wall of the inner rotor core (1) and the inner side wall of the outer rotor core (2).
2. 根据权利要求 1所述的一种电机转子结构， 其特征在于： 所述的弹 性连接件 （3) 是波形弹片。 2. A rotor structure for an electric machine according to claim 1, wherein: said elastic connecting member (3) is a wave-shaped elastic piece.
3. 根据权利要求 2所述的一种电机转子结构， 其特征在于： 波形弹片 是沿转子的轴向波动。 3. A rotor structure for an electric machine according to claim 2, wherein: the wave shrapnel is fluctuated in the axial direction of the rotor.
4. 根据权利要求 1或 2或 3所述的一种电机转子结构， 其特征在于： 外转子铁芯 （2) 和内转子铁芯 （1) 之间填充减震橡胶 （4)。 4. A rotor structure for an electric machine according to claim 1 or 2 or 3, characterized in that: the outer rotor core (2) and the inner rotor core (1) are filled with a damping rubber (4).
5. 根据权利要求 4所述的一种电机转子结构， 其特征在于： 内转子铁 芯 （1) 外侧壁上周向均匀伸出若干内转子铁芯齿片 （12)， 外转子铁芯 （2) 内侧壁上周向均匀伸出若干外转子铁芯齿片 （22)。 5. The rotor structure of an electric machine according to claim 4, wherein: the inner rotor core (1) has a plurality of inner rotor core pieces (12) and an outer rotor core uniformly extending circumferentially on the outer side wall (1) 2) A plurality of outer rotor core pieces (22) are uniformly protruded circumferentially on the inner side wall.
6. 根据权利要求 1或 2或 3所述的一种电机转子结构， 其特征在于： 弹性连接件（3) 的宽度 （L)大于或者等于内转子铁芯齿片 （12) 的宽度， 弹
性连接件 （3) 的宽度 （L) 也大于或者等于外转子铁芯齿片 （22) 的宽度。6. The rotor structure of an electric machine according to claim 1 or 2 or 3, wherein: the width (L) of the elastic connecting member (3) is greater than or equal to the width of the inner rotor core piece (12), the elastic The width (L) of the connector (3) is also greater than or equal to the width of the outer rotor core piece (22).
7. 根据权利要求 1或 2或 3所述的一种电机转子结构， 其特征在于： 内转子铁芯齿片（12)的根部设置第一支撑平面（120)， 外转子铁芯齿片（22) 的根部设置第二支撑平面 （220)， 弹性连接件 （3) 的两侧壁分别贴紧第一支 撑平面 （120) 和第二支撑平面 （220)。 7. The rotor structure of an electric machine according to claim 1 or 2 or 3, wherein: the root of the inner rotor core piece (12) is provided with a first support plane (120) and an outer rotor core piece ( The root of the 22) is provided with a second supporting plane (220), and the two side walls of the elastic connecting member (3) respectively abut the first supporting plane (120) and the second supporting plane (220).
8. 根据权利要求 1所述的一种电机转子结构， 其特征在于： 内转子铁 芯齿片 （12) 的数量是 8个， 外转子铁芯齿片 （22) 的数量也是 8个。 8. The rotor structure of an electric machine according to claim 1, wherein the number of inner rotor core teeth (12) is eight and the number of outer rotor core teeth (22) is eight.
9. 根据权利要求 7所述的一种电机转子结构， 其特征在于： 空腔（21) 的内壁是八边形。
9. A rotor structure for an electric machine according to claim 7, wherein: the inner wall of the cavity (21) is octagonal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320308695.0 | 2013-05-31 | ||
| CN 201320308695 CN203278576U (en) | 2013-05-31 | 2013-05-31 | Motor rotor structure |
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| WO2014190661A1 true WO2014190661A1 (en) | 2014-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| PCT/CN2013/085762 WO2014190661A1 (en) | 2013-05-31 | 2013-10-23 | Motor rotor structure |
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| Country | Link |
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| CN (1) | CN203278576U (en) |
| WO (1) | WO2014190661A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204030755U (en) * | 2014-06-24 | 2014-12-17 | 中山大洋电机股份有限公司 | A kind of rotor and apply its plastic packaging motor |
| CN106301134A (en) * | 2015-06-08 | 2017-01-04 | 华帝股份有限公司 | Control method and control device of silicon controlled speed-regulating range hood |
| CN105162269B (en) * | 2015-10-22 | 2018-01-30 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of outer rotor iron core, damping rotor and motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005051940A (en) * | 2003-07-30 | 2005-02-24 | Fujitsu General Ltd | Axial gap type motor |
| JP2007209163A (en) * | 2006-02-03 | 2007-08-16 | Nok Corp | Vibration-proof structure of permanent magnet rotor |
| CN201051686Y (en) * | 2007-06-04 | 2008-04-23 | 广东威灵电机制造有限公司 | Electromotor permanent magnetic rotor |
| CN101442229A (en) * | 2007-11-20 | 2009-05-27 | 日本电产芝浦株式会社 | Motor rotor and motor |
-
2013
- 2013-05-31 CN CN 201320308695 patent/CN203278576U/en not_active Expired - Lifetime
- 2013-10-23 WO PCT/CN2013/085762 patent/WO2014190661A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005051940A (en) * | 2003-07-30 | 2005-02-24 | Fujitsu General Ltd | Axial gap type motor |
| JP2007209163A (en) * | 2006-02-03 | 2007-08-16 | Nok Corp | Vibration-proof structure of permanent magnet rotor |
| CN201051686Y (en) * | 2007-06-04 | 2008-04-23 | 广东威灵电机制造有限公司 | Electromotor permanent magnetic rotor |
| CN101442229A (en) * | 2007-11-20 | 2009-05-27 | 日本电产芝浦株式会社 | Motor rotor and motor |
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| CN203278576U (en) | 2013-11-06 |
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