CN101488692B - Three-winding single phase induction motor - Google Patents
Three-winding single phase induction motor Download PDFInfo
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- CN101488692B CN101488692B CN2009100143930A CN200910014393A CN101488692B CN 101488692 B CN101488692 B CN 101488692B CN 2009100143930 A CN2009100143930 A CN 2009100143930A CN 200910014393 A CN200910014393 A CN 200910014393A CN 101488692 B CN101488692 B CN 101488692B
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- 238000004804 winding Methods 0.000 title claims abstract description 98
- 230000006698 induction Effects 0.000 title claims abstract description 23
- 239000003990 capacitor Substances 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
本发明公开了一种三绕组单相感应电动机。它采用电机定子绕组与电容器连接的方式，可以使三绕组单相感应电机在单相运行时效率接近三相对称运行的电机，并且高于同容量普通单相感应电机。其结构为：它包括机座，在机座内安装转轴，在转轴上安装有转子，同时在机座内还设有定子铁心，定子铁心上设有定子绕组，所述定子绕组有三套，各绕组轴线在空间互差120度电角度，全部绕组的六个出线头分别与两个电容器联结，三个绕组中电流保持接近对称状态。
The invention discloses a three-winding single-phase induction motor. It adopts the method of connecting the stator winding of the motor to the capacitor, which can make the efficiency of the three-winding single-phase induction motor close to that of the three-phase symmetrical operation motor in single-phase operation, and is higher than that of ordinary single-phase induction motors with the same capacity. Its structure is as follows: it includes a machine base, a rotating shaft is installed in the machine base, a rotor is installed on the rotating shaft, and a stator core is arranged in the machine base, and a stator winding is arranged on the stator core. There are three sets of stator windings, each The axes of the windings have a 120-degree electrical angle difference in space, and the six outlets of all the windings are respectively connected to two capacitors, and the currents in the three windings are kept close to a symmetrical state.
Description
Technical field
The present invention relates to a kind of motor, relate in particular to a kind of three-winding single phase induction motor.
Background technology
Monocyclic-start induction motor only needs the single phase alternating current power supply power supply, is widely used.In order to produce starting torque, major and minor two phase windings of the general employing of common monocyclic-start induction motor stator winding have quadrature on the space.When rated power during greater than 0.5kW, it is uneconomic adopting monocyclic-start induction motor, and one of way of solution is three phase induction motor to be received on the single phase poaer supply move.The three winding single-phase capacitor operation motors that convert for threephase asynchronous, identical when the analytical method of its electromagnetic performance is powered by single phase poaer supply with threephase asynchronous, therefore have bigger negative-sequence current in motor, the motor operation is in asymmetrical state.
Summary of the invention
Purpose of the present invention is exactly in order to improve the efficient of monocyclic-start induction motor, a kind of three-winding single phase induction motor has been proposed, it can make the three-winding single phase induction motor when single phasing efficient near the motor of three-phase symmetrical operation, and be higher than with the common single phase induction motor of capacity, simultaneously core dimensions is less than with the common single phase induction motor of capacity.
For achieving the above object, the present invention has adopted following technical scheme:
A kind of three-winding single phase induction motor, it comprises support, rotating shaft is installed in support, rotor is installed in rotating shaft, also is provided with stator core simultaneously in support, stator core is provided with stator winding, described stator winding has three covers, each winding axis is in 120 ° of electrical degrees of space mutual deviation, and all six terminals of winding connect with two capacitors respectively, and electric current keeps near symmetry status in three windings.
Described stator winding is made of by wye connection A phase winding, B phase winding and C phase winding, wherein A phase winding and a capacitor I are composed in series a branch road, connect single phase poaer supply, the C phase winding be composed in series another branch road with the B phase winding after another capacitor I I is in parallel, this branch road is connected in parallel on the capacitor I, electric current among the capacitor I I be in B phase winding and the C phase winding electric current and, the electric current in the capacitor I be in A phase winding and the B phase winding electric current and.
The client link of the same name that goes out to hold direct and other windings of described C phase winding.
Described support two ends are provided with end cap, also are provided with fan and fan housing at an end of support.
Described rotor is a cage rotor, and it comprises rotor core and rotor bar.
Described capacitor I and capacitor I I are installed in casing inside or are installed in the casing outside.
The three-winding single phase induction motor of bind mode of the present invention, it comprises support, installation shaft in it is installed stator in support, rotor is installed on axle, described rotor and conventional induction motor are basic identical, be cage rotor, three phase windings are arranged on the motor stator, winding axis is 120 ° of electrical degrees of mutual deviation spatially, adopt special connection, external two capacitors.The two ends of described casing are provided with end cap, are provided with fan.
Motor stator winding has 3 cover windings among the present invention, the space differs 120 ° of electrical degrees, six terminals of winding connect with two capacitors respectively, A phase winding and a capacitor I are composed in series a branch road, connect single phase poaer supply, the C phase winding be composed in series another branch road with the B phase winding after another capacitor I I is in parallel, this branch road is connected in parallel on the capacitor I.Electric current among the capacitor I I be in B phase winding and the C phase winding electric current and, the electric current in the capacitor I be in A phase winding and the B phase winding electric current with.Its basic functional principle is as follows: because the C phase winding is incorporated capacitor I I into, B phase winding and C phase winding are incorporated capacitor I into, therefore B phase winding current phase lags behind, C phase winding current phase is leading, A phase winding current phase remains unchanged, make that electric current keeps symmetry status in three windings, thereby motor is realized near symmetrical operation basically.
The invention has the beneficial effects as follows, the structure uniqueness, the mode of connection is simple, can effectively reduce core dimensions, improves efficiency of motor, energy savings.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a stator winding connection diagram of the present invention;
Fig. 3 is a stator wiring schematic diagram of the present invention.
Wherein 1-rotating shaft, 2-bearing, 3-end cap, 4-stator winding, 41-A phase winding, 42-B phase winding, the 43-C phase winding, 5-support, 6-stator core, 7-rotor bar, 8-rotor core, the 9-fan, 10-fan housing, 11-capacitor I, 12-capacitor II, 13-single phase poaer supply.
Embodiment
The invention will be further described below in conjunction with accompanying drawing and embodiment.
Among Fig. 1, three-winding single phase induction motor, it comprises casing, casing is provided with support 5, is provided with end cap 3 at support 5 two ends, also is provided with fan 9 and fan housing 10 at an end of support 5.Its interior rotating shaft 1 and bearing 2 installed of casing is equipped with rotor in rotating shaft 1, rotor is a cage rotor, and it comprises rotor core 8 and rotor bar 7.Be provided with stator core 6 in casing, stator core 6 is provided with stator winding 4, and stator winding 4 has three covers, is respectively A phase winding 41, B phase winding 42 and C phase winding 43, as Fig. 2, shown in Figure 3.A phase winding 41 and a capacitor I 11 are composed in series a branch road, connect single phase poaer supply 13, C phase winding 43 be composed in series another branch road with B phase winding 42 after another capacitor I I12 is in parallel, this branch road is connected in parallel on the capacitor I 11, electric current among the capacitor I I12 be B phase winding 42 with C phase winding 43 in electric current and, the electric current in the capacitor I 11 be A phase winding 41 with B phase winding 42 in electric current and.Among Fig. 3, a, b and c are respectively the end of the same name of A phase winding 41, B phase winding 42 and C phase winding 43.
Claims (4)
1. three-winding single phase induction motor, it comprises support, rotating shaft is installed in support, rotor is installed in rotating shaft, in support, also be provided with stator core simultaneously, stator core is provided with stator winding, it is characterized in that described stator winding has three covers, each winding axis is certain electrical degree in the space, all six terminals of winding connect with two capacitors respectively, and electric current keeps near symmetry status in three windings; Described stator winding is made of by wye connection A phase winding, B phase winding and C phase winding, and wherein A phase winding and a capacitor I are composed in series a branch road, connects single phase poaer supply; The C phase winding be composed in series another branch road with the B phase winding after another capacitor I I is in parallel, this branch road is connected in parallel on the capacitor I; Electric current among the capacitor I I be in B phase winding and the C phase winding electric current and, the electric current in the capacitor I be in A phase winding and the B phase winding electric current and; The client link of the same name that goes out to hold direct and other windings of described C phase winding.
2. three-winding single phase induction motor as claimed in claim 1 is characterized in that, described support two ends are provided with end cap, also is provided with fan and fan housing at an end of support.
3. three-winding single phase induction motor as claimed in claim 1 is characterized in that, described rotor is a cage rotor, and it comprises rotor core and rotor bar.
4. three-winding single phase induction motor as claimed in claim 1 is characterized in that, described capacitor I and capacitor I I are installed in casing inside or are installed in the casing outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100143930A CN101488692B (en) | 2009-02-26 | 2009-02-26 | Three-winding single phase induction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100143930A CN101488692B (en) | 2009-02-26 | 2009-02-26 | Three-winding single phase induction motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101488692A CN101488692A (en) | 2009-07-22 |
| CN101488692B true CN101488692B (en) | 2011-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100143930A Expired - Fee Related CN101488692B (en) | 2009-02-26 | 2009-02-26 | Three-winding single phase induction motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN101488692B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005880B (en) * | 2010-11-16 | 2012-09-05 | 山东大学 | Three-winding parallel single-phase induction motor |
| CN104167891A (en) * | 2014-09-04 | 2014-11-26 | 安徽美芝精密制造有限公司 | Single-phase asynchronous starting permanent magnet synchronous motor and compressor system with same |
| CN105305688B (en) * | 2015-11-01 | 2017-10-24 | 嘉兴学院 | Novel double-layer simplex lap winding low-vibration noise single phase series motor |
| CN106655598A (en) * | 2016-11-29 | 2017-05-10 | 安徽永华电机科技有限公司 | Voltage-doubled (220V/440V) motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1134063A (en) * | 1995-04-18 | 1996-10-23 | 奥托·J·M·史密夫 | Three-phase motor control |
| US6049188A (en) * | 1996-11-07 | 2000-04-11 | Smith; Otto J. M. | Single-phase motor starters |
| CN1822477A (en) * | 2006-02-28 | 2006-08-23 | 山东大学 | Single-phase induction motors with negative-sequence suppression windings |
| EP1496606B1 (en) * | 2003-07-09 | 2006-12-13 | Emerson Appliance Motors Europe S.r.l. | Electric induction motor |
-
2009
- 2009-02-26 CN CN2009100143930A patent/CN101488692B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1134063A (en) * | 1995-04-18 | 1996-10-23 | 奥托·J·M·史密夫 | Three-phase motor control |
| US6049188A (en) * | 1996-11-07 | 2000-04-11 | Smith; Otto J. M. | Single-phase motor starters |
| EP1496606B1 (en) * | 2003-07-09 | 2006-12-13 | Emerson Appliance Motors Europe S.r.l. | Electric induction motor |
| CN1822477A (en) * | 2006-02-28 | 2006-08-23 | 山东大学 | Single-phase induction motors with negative-sequence suppression windings |
Non-Patent Citations (1)
| Title |
|---|
| 王蕾等.单相SemihexTM感应电动机的电容确定方法.《电机技术》.2007,(第4期),19-20页、24页. * |
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| CN101488692A (en) | 2009-07-22 |
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Granted publication date: 20111221 Termination date: 20170226 |