CN105576864A - Intermediate-frequency asynchronous motor - Google Patents
Intermediate-frequency asynchronous motor Download PDFInfo
- Publication number
- CN105576864A CN105576864A CN201610041225.0A CN201610041225A CN105576864A CN 105576864 A CN105576864 A CN 105576864A CN 201610041225 A CN201610041225 A CN 201610041225A CN 105576864 A CN105576864 A CN 105576864A
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- CN
- China
- Prior art keywords
- rotor
- width
- asynchronous motor
- end cover
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- H02K1/26—Rotor cores with slots for windings
- H02K1/265—Shape, form or location of the slots
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/12—Asynchronous induction motors for multi-phase current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses an intermediate-frequency asynchronous motor. The intermediate-frequency asynchronous motor comprises a front end cover (1), a shell (2), a stator (3), a rotor (4), a rear end cover (5) and a shaft (6), wherein the front end cover (1) and the rear end cover (5) are in threaded connection with the two ends of the shell (2), the stator (3) is pressed inside the shell (2), the rotor (4) is pressed on the shaft (6), the two ends of the shaft (6) are respectively matched with the front end cover (1) and the rear end cover (5) through bearings, grooves are formed in the rotor (4), the notch width is larger than the groove bottom width, the notch width is 1.5 times of rotor teeth width, and the groove height is two thirds of the notch width. After the motor rotor adopts skin effect type grooves, the current density of the rotor is effectively reduced, the influence generated by a skin effect on the rotor current is reduced, and the motor performance is improved. The intermediate-frequency asynchronous motor has the advantages of simplicity in structure, running reliability, firmness and durability.
Description
Technical field
The present invention relates to structural design and the applied technical field of motor, specifically provide a kind of intermediate frequency asynchronous motor.
Background technology
This motor operating frequency is higher, and rotor current kelvin effect is serious, and current domestic motor rotor adopts pears type groove or parallel slot mostly.Considerable influence is produced to motor performance.
People urgently wish to obtain the excellent intermediate frequency asynchronous motor of a kind of technique effect.
Summary of the invention
The object of this invention is to provide the intermediate frequency asynchronous motor that a kind of technique effect is excellent.
Described intermediate frequency asynchronous motor is constructed as follows: front end housing 1, housing 2, stator 3, rotor 4, rear end cap 5 and axle 6; Described front end housing 1 and rear end cap 5 are threaded connection at the two ends of housing 2, front end housing 1, rear end cap 5 and housing 2 form agent structure, play the effect of support, it is inner that stator 3 is crimped on housing 2, and rotor 4 is crimped on axle 6, and the two ends of axle 6 coordinate with front end housing 1 and rear end cap 5 respectively by bearing, described rotor 4 is provided with groove, width of rebate is greater than slot bottom width, and width of rebate is 1.5 times of the rotor facewidth, and groove height is 2/3 of width of rebate.Motor exports machine torque by axle and drives load movement.
Motor operating frequency is higher, and the kelvin effect of rotor current is serious, and rotor current can be made to concentrate on the top of groove, and namely current density is higher.Conventional peariform slot or parallel slot are comparatively dark, its basic no current in groove bottom, and namely current density is lower, reduces the utilance of rotor, increase rotor loss, the efficiency of motor is reduced.
The rotor width of rebate of intermediate frequency asynchronous motor of the present invention is greater than slot bottom width, collection skin formula grooved can be called, by reducing the height of groove, the width of increase groove increases the sectional area on groove top, the effective area of rotor is made more to press close to air gap, this invention can effectively reduce rotor current density, reduces the impact that kelvin effect produces rotor current, improves the utilance of rotor, more reasonably make use of kelvin effect, reduce the efficiency of rotor loss and then raising motor.
Three-phase 400Hz symmetrical current is passed into during described intermediate frequency asynchronous motor work, thus set up rotating magnetic field in air gap, this rotating magnetic field induced electromotive force produce corresponding electric current in rotor windings in the rotor windings of short circuit, rotating magnetic field in this electric current and air gap interacts and produces electromagnetic torque, rotor rotates under the influence of this torque, drive entity load movement by rotating shaft, realize the conversion of electric energy to mechanical energy.
Described intermediate frequency asynchronous motor is the auxiliary products of aircraft electrical system.There is simple, reliable, the robust advantage of structure, wide market, be widely used in the actuator of the electronic equipment such as space flight, aviation, boats and ships.Motor rotor effectively reduces rotor current density, reduces the impact that kelvin effect produces rotor current, improve motor performance after adopting collection skin formula grooved.Described intermediate frequency asynchronous motor has simple, reliable, the robust advantage of structure.
Accompanying drawing explanation
Below in conjunction with drawings and the embodiments, the present invention is further detailed explanation:
Fig. 1 is intermediate frequency Induction Motor Structure schematic diagram;
Fig. 2 is parallel slot schematic diagram;
Fig. 3 is peariform slot schematic diagram;
Fig. 4 is collection skin formula grooved schematic diagram.
Embodiment
Embodiment 1
Described intermediate frequency asynchronous motor is constructed as follows: front end housing 1, housing 2, stator 3, rotor 4, rear end cap 5 and axle 6; Described front end housing 1 and rear end cap 5 are threaded connection at the two ends of housing 2, front end housing 1, rear end cap 5 and housing 2 form agent structure, play the effect of support, it is inner that stator 3 is crimped on housing 2, and rotor 4 is crimped on axle 6, and the two ends of axle 6 coordinate with front end housing 1 and rear end cap 5 respectively by bearing, described rotor 4 is provided with groove, width of rebate is greater than slot bottom width, and width of rebate is 1.5 times of the rotor facewidth, and groove height is 2/3 of width of rebate.Motor exports machine torque by axle and drives load movement.
Motor operating frequency is higher, and the kelvin effect of rotor current is serious, and rotor current can be made to concentrate on the top of groove, and namely current density is higher.Conventional peariform slot or parallel slot are comparatively dark, its basic no current in groove bottom, and namely current density is lower, reduces the utilance of rotor, increase rotor loss, the efficiency of motor is reduced.
The rotor width of rebate of described intermediate frequency asynchronous motor is greater than slot bottom width, collection skin formula grooved can be called, by reducing the height of groove, the width of increase groove increases the sectional area on groove top, the effective area of rotor is made more to press close to air gap, this invention can effectively reduce rotor current density, reduces the impact that kelvin effect produces rotor current, improves the utilance of rotor, more reasonably make use of kelvin effect, reduce the efficiency of rotor loss and then raising motor.
Three-phase 400Hz symmetrical current is passed into during described intermediate frequency asynchronous motor work, thus set up rotating magnetic field in air gap, this rotating magnetic field induced electromotive force produce corresponding electric current in rotor windings in the rotor windings of short circuit, rotating magnetic field in this electric current and air gap interacts and produces electromagnetic torque, rotor rotates under the influence of this torque, drive entity load movement by rotating shaft, realize the conversion of electric energy to mechanical energy.
Described intermediate frequency asynchronous motor is the auxiliary products of aircraft electrical system.There is simple, reliable, the robust advantage of structure, wide market, be widely used in the actuator of the electronic equipment such as space flight, aviation, boats and ships.Motor rotor effectively reduces rotor current density, reduces the impact that kelvin effect produces rotor current, improve motor performance after adopting collection skin formula grooved.Described intermediate frequency asynchronous motor has simple, reliable, the robust advantage of structure.
Claims (1)
1. an intermediate frequency asynchronous motor, is characterized in that: described intermediate frequency asynchronous motor is constructed as follows: front end housing (1), housing (2), stator (3), rotor (4), rear end cap (5) and axle (6); Described front end housing (1) and rear end cap (5) are threaded connection the two ends in housing (2), it is inner that stator (3) is crimped on housing (2), rotor (4) is crimped on axle (6), the two ends of axle (6) coordinate with front end housing (1) and rear end cap (5) respectively by bearing, described rotor (4) is provided with groove, width of rebate is greater than slot bottom width, width of rebate is 1.5 times of the rotor facewidth, and groove height is 2/3 of width of rebate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610041225.0A CN105576864A (en) | 2016-01-22 | 2016-01-22 | Intermediate-frequency asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610041225.0A CN105576864A (en) | 2016-01-22 | 2016-01-22 | Intermediate-frequency asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105576864A true CN105576864A (en) | 2016-05-11 |
Family
ID=55886673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610041225.0A Pending CN105576864A (en) | 2016-01-22 | 2016-01-22 | Intermediate-frequency asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105576864A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110979A (en) * | 2017-12-29 | 2018-06-01 | 沈阳兴华航空电器有限责任公司 | A kind of new intermediate frequency asynchronous motor with stator winding end protection |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2118364U (en) * | 1992-05-15 | 1992-10-07 | 上海先锋电工厂 | Three phase asynchronous intermediate frequency vibrating motor |
| JPH0622516A (en) * | 1992-07-02 | 1994-01-28 | Toshiba Corp | Squirrel-cage rotor for induction machine |
| CN105048744A (en) * | 2015-07-17 | 2015-11-11 | 中国科学院电工研究所 | Cast copper rotor for variable frequency motor |
| CN205544666U (en) * | 2016-01-22 | 2016-08-31 | 沈阳兴华航空电器有限责任公司 | Intermediate frequency asynchronous motor |
-
2016
- 2016-01-22 CN CN201610041225.0A patent/CN105576864A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2118364U (en) * | 1992-05-15 | 1992-10-07 | 上海先锋电工厂 | Three phase asynchronous intermediate frequency vibrating motor |
| JPH0622516A (en) * | 1992-07-02 | 1994-01-28 | Toshiba Corp | Squirrel-cage rotor for induction machine |
| CN105048744A (en) * | 2015-07-17 | 2015-11-11 | 中国科学院电工研究所 | Cast copper rotor for variable frequency motor |
| CN205544666U (en) * | 2016-01-22 | 2016-08-31 | 沈阳兴华航空电器有限责任公司 | Intermediate frequency asynchronous motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110979A (en) * | 2017-12-29 | 2018-06-01 | 沈阳兴华航空电器有限责任公司 | A kind of new intermediate frequency asynchronous motor with stator winding end protection |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160511 |
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| RJ01 | Rejection of invention patent application after publication |