CN87217207U - Shaded-pole starting type single-phase asynchronous motor - Google Patents
Shaded-pole starting type single-phase asynchronous motor Download PDFInfo
- Publication number
- CN87217207U CN87217207U CN 87217207 CN87217207U CN87217207U CN 87217207 U CN87217207 U CN 87217207U CN 87217207 CN87217207 CN 87217207 CN 87217207 U CN87217207 U CN 87217207U CN 87217207 U CN87217207 U CN 87217207U
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- China
- Prior art keywords
- asynchronous motor
- winding
- type single
- shaded
- phase asynchronous
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- 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.)
- Expired - Lifetime
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- Induction Machinery (AREA)
Abstract
The utility model discloses a shaded-pole starting type single-phase asynchronous motor, which is composed of a stator and a rotor, wherein, the rotor is provided with a primary winding and a secondary winding, the primary winding and the secondary winding differ by the electric angle of 30 DEG-50 DEG in space, the secondary winding is connected with a starting switch in parallel, the secondary winding and the primary winding are connected with each other in series, and both ends of the primary winding and both ends of the secondary winding are led out as the terminals of the power supply. The utility model can replace the existing Bo type single-phase asynchronous motor under the status that the positive rotation and the reverse are not needed, or the shaded-pole starting type single-phase asynchronous motor can be used in the status that 0.5 times to 1.5 times rated torque is needed, and copper wires or silicon steel sheets used by the shaded-pole starting type single-phase asynchronous motor are less than the Bo type single-phase asynchronous motor with the identical specification.
Description
The utility model belongs to the monopole asynchronous motor technical field.
Monopole asynchronous motor generally has following several types at present: single-phase resistance starting asynchronous motor, single-phase capacitance starting asynchronous motor, single-phase capacitor operation asyn. motor, single-phase capacitance starting and running asynchronous motor and single-phase shaded-pole asynchronous motor.With the utility model comparatively approaching be single-phase resistance starting asynchronous motor and single-phase shaded-pole asynchronous motor.
Single-phase resistance starting asynchronous motor is a BO type monopole asynchronous motor, and two cover windings are arranged in its stator core, and a cover is a main winding, also is work winding or operation winding; One cover is an auxiliary winding, also is the starting winding.The position of major-minor winding in stator spatially differs 90 ° of electrical degrees, and auxiliary winding is parallel on the single phase poaer supply by a starting switch and main winding.When rotor speed forwarded 75% left and right sides with leg speed to, starting switch disconnected, and auxiliary winding breaks away from power supply, only stays main winding and is connected on the electrical network, to keep the normal operation of motor.The shortcoming of this motor is that auxiliary winding is not utilized when normal operation, causes the required copper cash large usage quantity of winding.
Also be provided with two cover windings in the stator core of single-phase shaded-pole asynchronous motor, a cover is a main winding, the winding of promptly working (or claiming the operation winding); One cover is an auxiliary winding, promptly starts winding (also claiming short-circuited winding).The position of major-minor winding in stator spatially differs 45 ° of electrical degrees.The shortcoming of this motor is when entering normal operation behind motor starting, very big electric current to be arranged in the short-circuited winding, makes the efficient of motor reduce, and temperature rise improves.Therefore, the number of turn of short-circuited winding can not design manyly, or the line of winding footpath can not be selected big.So the starting torque that this motor produces is very little, it can only use at light start, and promptly starting torque requires less occasion.
The purpose of this utility model, be to develop a kind of when normal operation auxiliary winding also can be fully utilized, the starting torque novel monopole asynchronous motor bigger than single-phase shaded pole asynchronous motor that produces is in order to replace existing single-phase resistance starting asynchronous motor in the occasion that does not need rotating.Or use to the occasion of 1.5 times of nominal torques requiring starting torque to be 0.5 times.And its used copper cash or silicon steel sheet lack than the consumption of the single-phase resistance starting asynchronous motor of same size.
The utility model--split-pole start type monopole asynchronous motor is made up of stator and rotor two large divisions, is wound with major-minor two cover windings in its stator core, and the major-minor winding is connected mutually, and the supply terminals as motor is drawn at their two ends.The position of major-minor winding in stator spatially differs θ electrical degree (θ=30 °～50 ° are generally 45 °).Auxiliary winding is in parallel with starting switch.
Fig. 1 is the schematic diagram of split-pole start type monopole asynchronous motor.Wherein M is a main winding, and A is an auxiliary winding, and K is a starting switch.
During motor starting, firing switch is with the auxiliary winding short circuit, to produce starting torque. When rotor speed forwarded 75% left and right sides with leg speed to, firing switch disconnected, and major-minor winding string is connected on normally operation on the electrical network together. Therefore the electric current at normal auxiliary winding in service equates with main winding current, and for producing bigger starting torque, even the number of turn of auxiliary winding designs some morely, the efficient that single-phase shaded pole asynchronous motor also can not occur is low, the shortcoming of temperature rise. When manufacturing and designing, the major-minor winding can adopt identical wire diameter, and the ratio of auxiliary winding and main winding effective turn requires starting torque more big according to the requirement of starting torque is decided, and this ratio is more high. One highest wisdom will reach the national standard of BO type monopole asynchronous motor to the requirement of starting torque, and this ratio approximately can be taken as 0.4～0.5. And should make the summation of major-minor double winding effective turn and BO type monopole asynchronous motor main winding effective turn about equally. The wire diameter of major-minor winding can be chosen the identical wire diameter of BO type monopole asynchronous motor main winding. Manufacture and design like this The shaded-pole starting type single-phase asynchronous motor that comes out just can reach the performance roughly the same with BO type monopole asynchronous motor.
Auxiliary winding on the utility model stator occupies suitable component, utilizes firing switch with its short circuit, can produce the starting torque that BO type monopole asynchronous motor national standard requires. After raising, the starting process medium speed utilize firing switch that short circuit is disconnected, auxiliary winding is concatenated into and enters normal operation on the main winding, electric current in the auxiliary winding equates with main winding current, thereby overcome the Efficiency Decreasing that single-phase shaded-pole asynchronous motor occurs when normal operation, the shortcoming that temperature rise improves, and because the main winding number of turn of the summation of major-minor double winding effective turn and BO type monopole asynchronous motor about equally, thereby saved the auxiliary winding part of BO type monopole asynchronous motor, therefore make the motor of same size, the amount ratio BO type monopole asynchronous motor of the utility model winding copper cash is few. Owing to saved the auxiliary winding part winding that is equivalent to BO type monopole asynchronous motor, the lead that some groove is arranged in the motor stator greatly reduces. If when adopting special-shaped slot to manufacture and design scheme, can reach the purpose of saving silicon steel sheet than BO type monopole asynchronous motor.
The inventor has following embodiment.
Manufacturing and designing voltage is the split-pole start type monopole asynchronous motor of 370W, 4 utmost points for 220V rated power.The line of the used copper cash of major-minor winding directly is φ 0.85mm.The conductor number of the total series connection of main winding is 744, and the conductor number of the total series connection of auxiliary winding is 304.The ratio of auxiliary winding and main winding effective turn is 304/744=0.4086.Main winding and auxiliary winding are wound on the iron core of stator, and both connect mutually, and the supply terminals as motor is drawn at their two ends, and auxiliary winding is in parallel with starting switch.The position of major-minor winding in stator spatially differs 45 ° of electrical degrees.Fig. 2 is the distribution map of major-minor winding.For making the major-minor winding spatially differ 45 ° of electrical degrees, auxiliary winding just differs 1.5 grooves.The shared copper cash amount of major-minor winding is 0.7672 kilogram.
And voltage is 220V, and rated power is the BO type monopole asynchronous motor (BO of 370W, 4 utmost points
2-8024).The line of the used copper cash of its main winding directly is φ 0.85mm, and the conductor number of total series connection is 992, and the used copper cash line of auxiliary winding directly is φ 0.47mm, and the conductor number of total series connection is 712.The shared copper cash amount of major-minor winding is 0.8878 kilogram.As seen the utility model compares BO
2-8024 motor are saved 0.1206 kilogram of copper cash.
The utility model and BO
2-8024 motor and the every performance of BO type monopole asynchronous motor national standard relatively see the following form:
From last table as seen, every performance index of the present utility model meet BO type monopole asynchronous motor request of national standard.Therefore, in the occasion that does not need rotating, it can replace existing BO type monopole asynchronous motor.And its used copper cash lacks than the BO type monopole asynchronous motor of same size, so cost is lower.
Claims (1)
- A kind of by stator and rotor split-pole start type dimerous monopole asynchronous motor, it is characterized in that having on the stator cover main winding and to be enclosed within the auxiliary winding that differs 30 °～50 ° of electrical degrees on the space with main winding, auxiliary winding also connects a starting switch, auxiliary winding is connected mutually with main winding, and the supply terminals as motor is drawn at their two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87217207 CN87217207U (en) | 1987-12-31 | 1987-12-31 | Shaded-pole starting type single-phase asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87217207 CN87217207U (en) | 1987-12-31 | 1987-12-31 | Shaded-pole starting type single-phase asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87217207U true CN87217207U (en) | 1988-08-31 |
Family
ID=4831015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87217207 Expired - Lifetime CN87217207U (en) | 1987-12-31 | 1987-12-31 | Shaded-pole starting type single-phase asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87217207U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109698661A (en) * | 2017-10-23 | 2019-04-30 | 德昌电机(深圳)有限公司 | Motor and its driving circuit |
| CN113839477A (en) * | 2021-11-04 | 2021-12-24 | 科力尔电机集团股份有限公司 | Improved single-phase shaded pole asynchronous motor |
| WO2024087529A1 (en) * | 2022-10-26 | 2024-05-02 | 鸣志电器(太仓)有限公司 | Driving module with variable output torque |
| GB2628227A (en) * | 2022-10-26 | 2024-09-18 | Moons Electric Taicang Co Ltd | Drive Module with variable output torque |
-
1987
- 1987-12-31 CN CN 87217207 patent/CN87217207U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109698661A (en) * | 2017-10-23 | 2019-04-30 | 德昌电机(深圳)有限公司 | Motor and its driving circuit |
| CN113839477A (en) * | 2021-11-04 | 2021-12-24 | 科力尔电机集团股份有限公司 | Improved single-phase shaded pole asynchronous motor |
| WO2024087529A1 (en) * | 2022-10-26 | 2024-05-02 | 鸣志电器(太仓)有限公司 | Driving module with variable output torque |
| GB2628227A (en) * | 2022-10-26 | 2024-09-18 | Moons Electric Taicang Co Ltd | Drive Module with variable output torque |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |