CN104242491B - The outer stator type alternating current generator of packet excitation con-trol - Google Patents
The outer stator type alternating current generator of packet excitation con-trol Download PDFInfo
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- CN104242491B CN104242491B CN201410456036.0A CN201410456036A CN104242491B CN 104242491 B CN104242491 B CN 104242491B CN 201410456036 A CN201410456036 A CN 201410456036A CN 104242491 B CN104242491 B CN 104242491B
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Abstract
The invention discloses a kind of outer stator type alternating current generator being grouped excitation con-trol, the problem solving phase run effective exciting power surplus of the outer stator type alternating current generator existence of existing heavy duty small-power low cruise.It is overrided to form by ring-shaped silicon steel sheet including outer stator of motor (1), waist at the I-shaped pole shoe of stator (4) is provided with pole shoe stator winding coil (5), the I-shaped pole shoe of stator (4) and pole shoe stator winding coil component units stator pole shoes thereon, unit stator pole shoes is that the afterbody activity of the swallowtail shape by the I-shaped pole shoe of stator (4) is plugged in stator pole shoes elongated slot (3), six unit stator pole shoes form first group of stator excitation group, many group stator excitation groups it are provided with on the medial surface of the outer stator of motor of composition after ring-shaped silicon steel sheet laminates.The power on/off of each stator excitation group is controlled by Programmable Logic Controller (10).It is particularly suitable for those AC driven motor needing heavy load starting and long period low-speed heave-load to run.
Description
Technical field
The present invention relates to a kind of outer stator type ac motor, particularly to the outer stator type alternating current generator of a kind of applicable heavy load starting.
Background technology
If the stator core of existing outer stator type ac motor is laminated aftershaping by dry tablet silicon steel punched chip mostly, in order to embed stator exciting coil, stalloy inwardly goes out several gear pieces pointing to stator punching center along its yoke, that is stator core is made up of stator yoke and stator teeth, stator coil is then wound around on stator teeth, the motor of this structure, the utilization rate of stator punching is relatively low, and when embedding stator coil, generally by embed by hand or completed by automatic coil winding machine, owing to the gap between adjacent stators teeth portion is smaller, cause rule working space little, coiling is extremely inconvenient.Rule for convenience, general stator rabbet arranges the biggest, and the copper factor that result in motor is relatively low.Additionally, the number of turn of the stator winding of existing outer stator type ac motor fixes, can not arbitrarily change, its starting torque and torque capacity are certain, this has resulted in when choosing driving motor according to load, the motor selecting 1.5-2 times of nominal load is needed to start requirement to meet it, when entering into normal operating phase after electric motor starting, motor is in light running state often, there is the problem that superfluous and ac motor the power factor of effective exciting power is relatively low, the particularly heavy duty low speed small power ac motor used in conveying tape transport system, the problems referred to above are the most prominent.
Summary of the invention
The invention provides a kind of outer stator type alternating current generator being grouped excitation con-trol, solve the technical problem that the effective exciting power of phase run is superfluous and power factor is low of the outer stator type alternating current generator existence that existing heavy-duty low-speed runs.
The present invention is to solve above technical problem by the following technical programs:
nullA kind of outer stator type alternating current generator being grouped excitation con-trol，Including outer stator of motor and motor internal rotor，Outer stator of motor is overrided to form by ring-shaped silicon steel sheet，Mutually it is located in parallel to one another the stator pole shoes elongated slot that six vertical sections are swallowtail shape on the medial surface of the outer stator of motor of composition at equal intervals after ring-shaped silicon steel sheet laminates radian，Waist at the I-shaped pole shoe of stator is provided with pole shoe stator winding coil，The I-shaped pole shoe of stator and pole shoe stator winding coil component units stator pole shoes thereon，Unit stator pole shoes is that the afterbody activity of the swallowtail shape by the I-shaped pole shoe of stator is plugged in stator pole shoes elongated slot，Six stator pole shoes elongated slots on the same vertical section of outer stator of motor are all plugged with a unit stator pole shoes，These six unit stator pole shoes form first group of stator excitation group，In first group of stator excitation group, the pole shoe stator winding coil on two unit stator pole shoes diametrically is electrically connected with Programmable Logic Controller after being concatenated；Six stator pole shoes elongated slots on another same vertical section of outer stator of motor first group of stator excitation group side are the most all plugged with another unit stator pole shoes, these six another unit stator pole shoes form second group of stator excitation group, in second group of stator excitation group, the pole shoe stator winding coil on two unit stator pole shoes diametrically is also electrically connected with Programmable Logic Controller after being concatenated, it is provided with unit stator pole shoes spacer block between unit stator pole shoes and another unit stator pole shoes of second group of stator excitation group in first group of stator excitation group.
On the lateral surface of motor internal rotor, the excircle radian at equal intervals ground along rotor stalloy is mutually located in parallel to one another the rotor tooth block length groove that four vertical sections are swallowtail shape, waist at rotor I-shaped tooth block is provided with tooth block rotor winding coil, rotor I-shaped tooth block and tooth block rotor winding coil component units rotor tooth block thereon, unit rotor tooth block is that the afterbody activity of the swallowtail shape by rotor I-shaped tooth block is plugged in rotor tooth block length groove, four rotor tooth block length grooves on the same vertical section of motor internal rotor are all plugged with a unit rotor tooth block, these four unit rotating pole-pieces form the first group rotor coil groups, the tooth block rotor winding coil on four unit rotor tooth blocks in first group rotor coil groups is electrically connected with Programmable Logic Controller after being sequentially connected in series；Four rotor tooth block length grooves on another same vertical section of the motor internal rotor of the first group rotor coil groups side are the most all plugged with another unit rotor tooth block, these four another unit rotor tooth blocks form the second group rotor coil groups, tooth block rotor winding coil on four in second group rotor coil groups another unit rotor tooth blocks is electrically connected with Programmable Logic Controller after being sequentially connected in series, and is provided with unit rotor tooth block gap block between unit rotor tooth block and another unit rotor tooth block of the second group rotor coil groups in the first group rotor coil groups.
It is provided with 3 groups of stator excitation groups on the medial surface of the outer stator of motor of composition after ring-shaped silicon steel sheet laminates, being provided with 3 group rotor coil groups on the lateral surface of motor internal rotor, the rotor coil group arranged on the lateral surface of motor internal rotor is to be correspondingly arranged with the stator excitation group arranged on the medial surface of outer stator of motor.
The present invention controls the stator excitation of motor by packet, achieve motor in startup and effective excitation of the economical rationality in the stage of normal operation, improve the power factor of motor, be particularly suitable for those AC driven motor needing heavy load starting and long period low-speed heave-load to run.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the electric connection structure schematic diagram between the external stator of the present invention and Programmable Logic Controller 10；
Fig. 3 is the structural representation of the unit stator pole shoes of the present invention；
Fig. 4 is the sectional view after the external stator of the present invention is cut open along motor center axis；
Fig. 5 is the sectional view after the internal rotor of the present invention is cut open along motor center axis.
Detailed description of the invention
The present invention is described in detail below in conjunction with the accompanying drawings:
nullA kind of outer stator type alternating current generator being grouped excitation con-trol，Including outer stator of motor 1 and motor internal rotor 2，Outer stator of motor 1 is overrided to form by ring-shaped silicon steel sheet，Mutually it is located in parallel to one another the stator pole shoes elongated slot 3 that six vertical sections are swallowtail shape on the medial surface of the outer stator of motor of composition at equal intervals after ring-shaped silicon steel sheet laminates radian，Waist at the I-shaped pole shoe of stator 4 is provided with pole shoe stator winding coil 5，The I-shaped pole shoe of stator 4 and pole shoe stator winding coil 5 component units stator pole shoes thereon，Unit stator pole shoes is that the afterbody activity of the swallowtail shape by the I-shaped pole shoe of stator 4 is plugged in stator pole shoes elongated slot 3，Six stator pole shoes elongated slots on the same vertical section of outer stator of motor 1 are all plugged with a unit stator pole shoes，These six unit stator pole shoes form first group of stator excitation group，In first group of stator excitation group, the pole shoe stator winding coil on two unit stator pole shoes diametrically is electrically connected with Programmable Logic Controller 10 after being concatenated；Six stator pole shoes elongated slots on another same vertical section of outer stator of motor 1 first group of stator excitation group side are the most all plugged with another unit stator pole shoes, these six another unit stator pole shoes form second group of stator excitation group, in second group of stator excitation group, the pole shoe stator winding coil on two unit stator pole shoes diametrically is also electrically connected with Programmable Logic Controller 10 after being concatenated, it is provided with unit stator pole shoes spacer block 6 between unit stator pole shoes and another unit stator pole shoes of second group of stator excitation group in first group of stator excitation group.
On the lateral surface of motor internal rotor 2, the excircle radian at equal intervals ground along rotor stalloy is mutually located in parallel to one another the rotor tooth block length groove 7 that four vertical sections are swallowtail shape, waist at rotor I-shaped tooth block 8 is provided with tooth block rotor winding coil, rotor I-shaped tooth block 8 and tooth block rotor winding coil component units rotor tooth block thereon, unit rotor tooth block is that the afterbody activity of the swallowtail shape by rotor I-shaped tooth block 8 is plugged in rotor tooth block length groove 7, four rotor tooth block length grooves on the same vertical section of motor internal rotor 2 are all plugged with a unit rotor tooth block, these four unit rotor tooth blocks form the first group rotor coil groups, the tooth block rotor winding coil on four unit rotor tooth blocks in first group rotor coil groups is electrically connected with Programmable Logic Controller 10 after being sequentially connected in series；Four rotor tooth block length grooves 7 on another same vertical section of the motor internal rotor 2 of the first group rotor coil groups side are the most all plugged with another unit rotor tooth block, these four another unit rotor tooth blocks form the second group rotor coil groups, pole shoe rotor winding coil on four in second group rotor coil groups another unit rotor tooth blocks is electrically connected with Programmable Logic Controller 10 after being sequentially connected in series, it is provided with unit rotor tooth block gap block 9 between unit rotor tooth block and another unit rotor tooth block of the second group rotor coil groups in the first group rotor coil groups.
It is provided with 3 groups of stator excitation groups on the medial surface of the outer stator of motor of composition after ring-shaped silicon steel sheet laminates, being provided with 3 group rotor coil groups on the lateral surface of motor internal rotor 2, the rotor coil group arranged on the lateral surface of motor internal rotor 2 is to be correspondingly arranged with the stator excitation group arranged on the medial surface of outer stator of motor.
In first group of stator excitation group of the present invention, the winding process of the pole shoe stator winding coil on two unit stator pole shoes diametrically is: before coiling, unit stator pole shoes is classified and is labeled as belonging to A phase, B phase, C phase, each pole shoe is wound with concentratred winding, make to constitute a phase together with diametrically two windings in series on the same vertical plane of motor central axis, and be electrically connected with Programmable Logic Controller 10.Thus achieve coil packet, and the number of turn of each phase stator winding can be changed at any time.
The outer stator type ac motor of packet excitation con-trol utilizes the characteristic that magnetic flux closes along magnetic resistance minimal path, when electric current flows through stator winding, stator winding produces a Vector Magnetic Field, and this magnetic field can rotate an angle by rotor driven so that the pair of magnetic field direction of rotor is consistent with the magnetic direction of stator.When the Vector Magnetic Field of stator rotates an angle, and rotor turns an angle also with this magnetic field.And i.e. control the method such as frequency of the energising number of tapped-winding, electrical current by the number of turn changing stator winding and control the output speed of motor, torque, thus reach directly to drive the purpose of load.Ohm's law according to magnetic circuit: F=Ni, in formula, F is magnetomotive force, and N is coil turn, and i is size of current.Can draw from formula, by changing number of turn N of coil, can change magnetomotive force F of magnetic circuit, magnetic flux changes the most therewith, and then produces corresponding torque.In the outer stator type alternating current generator of packet excitation con-trol, owing to being provided with, along motor centerline direction, the stator excitation group that multicomponent group controls on the medial surface of motor external stator, according to different loads, Programmable Logic Controller 10 issue an instruction to control the group number of energising stator excitation group.Specifically, when load is in start-up course, owing to required detent torque is bigger, motor stator winding should be made to be operated in the situation of most number of turn, the most all of stator excitation group is all energized to realizing directly driving load, when Programmable Logic Controller 10 detects that load is in steady operational status, in order to avoid motor now is in light condition, motor stator winding should be made to be operated in the situation of the less number of turn, i.e. realize energy-conservation by the energising number of minimizing stator excitation group number.
Claims (2)
- null1. the outer stator type alternating current generator being grouped excitation con-trol，Including outer stator of motor (1) and motor internal rotor (2)，It is characterized in that，Outer stator of motor (1) is overrided to form by ring-shaped silicon steel sheet，Mutually it is located in parallel to one another the stator pole shoes elongated slot (3) that six vertical sections are swallowtail shape on the medial surface of the outer stator of motor of composition at equal intervals after ring-shaped silicon steel sheet laminates radian，Waist at the I-shaped pole shoe of stator (4) is provided with pole shoe stator winding coil (5)，The I-shaped pole shoe of stator (4) and pole shoe stator winding coil thereon (5) component units stator pole shoes，Unit stator pole shoes is that the afterbody activity of the swallowtail shape by the I-shaped pole shoe of stator (4) is plugged in stator pole shoes elongated slot (3)，Six stator pole shoes elongated slots on the same vertical section of outer stator of motor (1) are all plugged with a unit stator pole shoes，These six unit stator pole shoes form first group of stator excitation group，In first group of stator excitation group, the pole shoe stator winding coil on two unit stator pole shoes diametrically is electrically connected with Programmable Logic Controller (10) after being concatenated；Six stator pole shoes elongated slots on another same vertical section of the outer stator of motor (1) of first group of stator excitation group side are the most all plugged with another unit stator pole shoes, these six another unit stator pole shoes form second group of stator excitation group, in second group of stator excitation group, the pole shoe stator winding coil on two unit stator pole shoes diametrically is also electrically connected with Programmable Logic Controller (10) after being concatenated, it is provided with unit stator pole shoes spacer block (6) between unit stator pole shoes and another unit stator pole shoes of second group of stator excitation group in first group of stator excitation group；nullOn the lateral surface of motor internal rotor (2), the excircle radian at equal intervals ground along rotor stalloy is mutually located in parallel to one another rotor tooth block length groove (7) that four vertical sections are swallowtail shape，Waist at rotor I-shaped tooth block (8) is provided with tooth block rotor winding coil，Rotor I-shaped tooth block (8) and tooth block rotor winding coil component units rotor tooth block thereon，Unit rotor tooth block is that the afterbody activity of the swallowtail shape by rotor I-shaped tooth block (8) is plugged in rotor tooth block length groove (7)，Four rotor tooth block length grooves on the same vertical section of motor internal rotor (2) are all plugged with a unit rotor tooth block，These four unit rotor tooth blocks form the first group rotor coil groups，The tooth block rotor winding coil on four unit rotor tooth blocks in first group rotor coil groups is electrically connected with Programmable Logic Controller (10) after being sequentially connected in series；Four rotor tooths block length groove (7) on another same vertical section of the motor internal rotor (2) of the first group rotor coil groups side are the most all plugged with another unit rotor tooth block, these four another unit rotor tooth blocks form the second group rotor coil groups, tooth block rotor winding coil on four in second group rotor coil groups another unit rotor tooth blocks is electrically connected with Programmable Logic Controller (10) after being sequentially connected in series, it is provided with unit rotor tooth block gap block (9) between unit rotor tooth block and another unit rotor tooth block of the second group rotor coil groups in the first group rotor coil groups.
- A kind of outer stator type alternating current generator being grouped excitation con-trol the most according to claim 1, it is characterized in that, it is provided with 3 groups of stator excitation groups on the medial surface of the outer stator of motor of composition after ring-shaped silicon steel sheet laminates, being provided with 3 group rotor coil groups on the lateral surface of motor internal rotor (2), the rotor coil group arranged on the lateral surface of motor internal rotor (2) is to be correspondingly arranged with the stator excitation group arranged on the medial surface of outer stator of motor.
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| CN201410456036.0A CN104242491B (en) | 2014-09-10 | 2014-09-10 | The outer stator type alternating current generator of packet excitation con-trol |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410456036.0A CN104242491B (en) | 2014-09-10 | 2014-09-10 | The outer stator type alternating current generator of packet excitation con-trol |
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| CN104242491A CN104242491A (en) | 2014-12-24 |
| CN104242491B true CN104242491B (en) | 2016-09-14 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3293460A (en) * | 1960-02-22 | 1966-12-20 | Fujitsu Ltd | Electric stepping motor with a nonmagnetic spacer between adjacent rotor sections |
| US4127802A (en) * | 1977-04-06 | 1978-11-28 | Johnson Milton H | High torque stepping motor |
| CN201504159U (en) * | 2009-09-24 | 2010-06-09 | 张世清 | Double-stator-rotor multiple pole switch reluctance motor |
| CN102983694A (en) * | 2012-12-27 | 2013-03-20 | 上海交通大学 | Sectional type switch reluctance motor |
| CN103051129A (en) * | 2012-12-10 | 2013-04-17 | 宁波怡诚电子科技有限公司 | Single phase asynchronous electromotor |
| CN204168015U (en) * | 2014-09-10 | 2015-02-18 | 太原科技大学 | The outer stator type alternating current machine of grouping excitation con-trol |
-
2014
- 2014-09-10 CN CN201410456036.0A patent/CN104242491B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3293460A (en) * | 1960-02-22 | 1966-12-20 | Fujitsu Ltd | Electric stepping motor with a nonmagnetic spacer between adjacent rotor sections |
| US4127802A (en) * | 1977-04-06 | 1978-11-28 | Johnson Milton H | High torque stepping motor |
| CN201504159U (en) * | 2009-09-24 | 2010-06-09 | 张世清 | Double-stator-rotor multiple pole switch reluctance motor |
| CN103051129A (en) * | 2012-12-10 | 2013-04-17 | 宁波怡诚电子科技有限公司 | Single phase asynchronous electromotor |
| CN102983694A (en) * | 2012-12-27 | 2013-03-20 | 上海交通大学 | Sectional type switch reluctance motor |
| CN204168015U (en) * | 2014-09-10 | 2015-02-18 | 太原科技大学 | The outer stator type alternating current machine of grouping excitation con-trol |
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| CN104242491A (en) | 2014-12-24 |
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Inventor after: Yuan Yuan Inventor after: Meng Wenjun Inventor after: Niu Xuemei Inventor after: Sun Xiaoxia Inventor before: Yuan Yuan Inventor before: Meng Wenjun Inventor before: Sun Xiaoxia Inventor before: Li Yongchao |
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Free format text: CORRECT: INVENTOR; FROM: YUAN YUAN MENG WENJUN SUN XIAOXIA LI YONGCHAO TO: YUAN YUAN MENG WENJUN NIU XUEMEI SUN XIAOXIA |
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