CN1223069C - Rotor of synchronous induction motor and its manufacturing method - Google Patents
Rotor of synchronous induction motor and its manufacturing method Download PDFInfo
- Publication number
- CN1223069C CN1223069C CN 01144401 CN01144401A CN1223069C CN 1223069 C CN1223069 C CN 1223069C CN 01144401 CN01144401 CN 01144401 CN 01144401 A CN01144401 A CN 01144401A CN 1223069 C CN1223069 C CN 1223069C
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- Prior art keywords
- rotor
- permanent magnet
- rotor core
- hole
- secondary conductor
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- Expired - Fee Related
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- Manufacture Of Motors, Generators (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The present invention relates to a rotor of a simultaneous induction motor and a manufacturing method thereof, particularly to the structure and the manufacturing method of the rotor of a simultaneous induction motor. The structure of the rotor of the present invention mainly comprises a rotor iron core, a secondary conductor, a permanent magnet and a magnetic flux wall, wherein lateral plates which are used for preventing die-casting secondary conductor aluminum from flowing in are arranged on both sides of the rotor iron core. The rotor of the present invention has the manufacturing method that a, punching a core sheet and manufacturing the rotor iron core; b, inserting the permanent magnet; c, sticking the lateral plates on both lateral surfaces of the rotor iron core; d, casting aluminum; e, completing the manufacture of the rotor of the simultaneous induction motor. The present invention has the advantages that the present invention can prevent aluminum from flowing towards the magnetic flux wall and the sides of the permanent magnet when the aluminum is cast because lateral plates which is injected in aluminum through holes are arranged on both lateral surfaces of the rotor iron core when the rotor is manufactured, can reduce the loss of aluminum materials, can prevent the permanent magnet from cracking, and can improve the reliability of the simultaneous induction motor.
Description
Technical field
The present invention relates to synchronous induction motor, particularly be rotor and the manufacture method thereof that has the die casting secondary conductor in the synchronous induction motor.
Background technology
The general synchronous induction motor and the main distinction of asynchronous machine are in the electrode permanent magnet to be housed synchronously.And drive by the reluctance torque that is taken place between permanent magnet and the stator.Because synchronous induction motor need not additional position transducer or driver, because rotor does not have electric current in the conductor when turning round with synchronizing speed,, improved efficiency of motor again so reduced power loss.Therefore synchronous induction motor as power source, will replace asynchronous machine at household appliances and other product scopes.
Fig. 1 is the profile of prior art synchronous induction motor.The synchronous motor of prior art is made up of stator and rotor.Stator interior has certain space; Rotor is positioned at the center of stator, keeps a determining deviation and rotatable.This stator is made up of stator core 106 and a plurality of stator slot 108.A plurality of stator slots 108 interior week keep a determining deviation stator core 106, and can twine stator coil.This rotor is by rotor core 112, and conductor 116 and permanent magnet 118 are formed.There is motor shaft 110 at rotor core 112 centers; Conductor 116 is located on the outer circumference of rotor core 112, makes rotating speed improve synchronizing speed, inserts permanent magnet 118 between conductor 116 and rotor core 112.At the two ends of permanent magnet 118 magnetic flux wall 120 is set, to prevent the flux leakage of permanent magnet 118.Making the method for synchronous induction electromotor rotor in prior art, generally is after rotor core is made, and the hand-hole of punching press aluminium injects secondary conductor again, after permanent magnet is inserted in the inboard of rotor core, by pressure casting method aluminium is injected in the above-mentioned hand-hole.
Because the magnetic flux wall is very near apart from permanent magnet, after the energising, also reduced permanent magnet magnetic force when acting on the increase starting torque by synchronous induction motor.When carrying out die casting,, not only cause the aluminium loss, more caused the decreased performance of synchronous induction motor work because the effect of pressure makes permanent magnet be subjected to impacting and is easy to generate the crack.
Summary of the invention
The objective of the invention is to overcome above-mentioned technical deficiency, provide a kind of after inserting permanent magnet, increase by two side plates in the permanent magnet two sides, by the die casting secondary conductor in the rotor of the hole on the side plate, just can prevent during die casting that aluminum that permanent magnet produces the crack and reduces secondary conductor from flowing into permanent magnet and magnetic flux wall and damnous manufacturing synchronous induction electromotor rotor and method thereof.
The technical scheme that technical solution problem of the present invention is adopted is: a kind of rotor of synchronous induction motor, its structure mainly includes rotor core, secondary conductor, permanent magnet and magnetic flux wall, secondary conductor is contained in the periphery hand-hole of rotor core, permanent magnet is inserted between secondary conductor and the rotor core with keeping certain intervals, the magnetic flux wall is arranged between permanent magnet, be equipped with in the both sides of rotor core and prevent that die casting secondary conductor aluminium from flowing into the side plate in permanent magnet and the magnetic flux wall, on the disc side plate, have with the corresponding through hole of the hand-hole of secondary conductor aluminium and with the corresponding through hole of Syncronous induction arbor; Be shut with permanent magnet and the corresponding position of magnetic flux wall on the side plate.
A kind of manufacture method of above-mentioned synchronous induction electromotor rotor, make rotor and carry out as follows:
A. punching press chip, make rotor core: the punching press chip laminates and makes rotor core; On iron core, be formed for injecting the hand-hole of secondary conductor aluminium;
B. insert permanent magnet: after the hand-hole of rotor core forms, permanent magnet is inserted in the rotor core;
C. paste side plate in the rotor core two sides: the two sides that biside plate are attached to rotor core respectively;
D. die casting aluminium: with pressure casting method with aluminium by being injected in the hand-hole with the corresponding through hole of hand-hole on the side plate, make the secondary conductor aluminium in the rotor core of packing into;
E. finish the synchronous induction electromotor rotor manufacturing.
Effect of the present invention is: the present invention is when making synchronous induction electromotor rotor, owing to being equipped with in the two sides of rotor core to injecting the side plate that through hole is arranged that aluminium is set up, can prevent that when carrying out aluminium die casting aluminium from flowing to magnetic flux wall and permanent magnet, reduce the loss of aluminium, prevent that permanent magnet from producing the crack, improves the reliability of rotor.
Description of drawings
Fig. 1 is the cutaway view of prior art synchronous induction motor;
Fig. 2 is the cutaway view of synchronous induction motor of the present invention;
Fig. 3 is the schematic diagram of side plate of the present invention;
Fig. 4 is the cutaway view of rotor of the present invention;
Fig. 5 is the process chart of method for manufacturing rotor of the present invention.
Embodiment
Below embodiments of the invention are described in further detail: synchronous induction motor keeps certain intervals and rotatable rotor to form by stator with stator.Stator is made up of stator core 2 and a plurality of stator slot 6.Stator slot 6 forms with a determining deviation in the inboard of stator core, and can twine stator coil.
Rotor is made up of rotor core 4, secondary conductor aluminium 10 and permanent magnet 12 and magnetic flux wall 20.There is the axle 8 of synchronous induction motor rotor core 4 inside; Secondary conductor aluminium 10 is arranged on the periphery of above-mentioned rotor core 4, makes the rotating speed of rotor bring up to synchronizing speed, and the permanent magnet 12 that produces magnetic force is inserted between secondary conductor aluminium 10 and the rotor core 4 with keeping certain intervals.In order to prevent leakage of magnetic flux, between the eastern magnet 12 magnetic flux wall 20 is being set forever, secondary conductor aluminium 10 is by the casting method moulding of die casting.During die casting secondary conductor aluminium 10, flow into to magnetic flux wall 20 and permanent magnet 12, side plate 26 is housed in the both sides of rotor core 4 in order to prevent aluminium.On side plate 26, have with the hand-hole 32 corresponding through holes 28 of secondary conductor aluminium 10 and with motor shaft 8 corresponding through holes 30; Be shut with permanent magnet 12 and magnetic flux wall 20 corresponding positions on the side plate 26.Side plate 26 is to have certain thickness disc-shaped plate, and through hole 28 is that punching press forms on side plate 26.The thickness of side plate 26 need reach the intensity of the pressure that produces in the time of can bearing die casting aluminium.
Synchronous induction motor with structure of the present invention is brought up to synchronizing speed by the effect of secondary conductor aluminium 10 from toggle speed, and from synchronizing speed, the reluctance torque that the magnetic flux that produces by permanent magnet 12 and the interaction of stator coil produce drives.
Manufacture method to above-mentioned synchronous induction electromotor rotor further describes below.
A kind of manufacture method of above-mentioned synchronous induction electromotor rotor, make rotor and carry out as follows:
A. punching press chip, make rotor core: the punching press chip laminates and makes rotor core 4; On iron core, be formed for injecting the hand-hole 32 of secondary conductor aluminium 10;
B. insert permanent magnet: after the hand-hole 32 of rotor core 4 forms, permanent magnet 12 is inserted in the rotor core 4;
C. paste side plate in the rotor core two sides: the two sides that biside plate 26 are attached to rotor core 4 respectively;
D. die casting aluminium: with pressure casting method with aluminium by being injected in the hand-hole 32 with the corresponding through hole 28 of hand-hole on the side plate 26, make the secondary conductor aluminium 10 in the rotor core 4 of packing into;
E. finish the synchronous induction electromotor rotor manufacturing
That is, pasting side plate 26 back enforcement aluminium die casting, aluminium can only could flow to the hand-hole of rotor core by the through hole of side plate 26, prevents to flow to magnetic flux wall or permanent magnet.
Claims (2)
1. the rotor of a synchronous induction motor, its structure mainly includes rotor core, secondary conductor, permanent magnet and magnetic flux wall, secondary conductor is contained in the periphery hand-hole of rotor core, permanent magnet is inserted between secondary conductor and the rotor core with keeping certain intervals, the magnetic flux wall is arranged between permanent magnet, be equipped with in the both sides of rotor core and prevent that die casting secondary conductor aluminium from flowing into the side plate in permanent magnet and the magnetic flux wall, it is characterized in that on disc side plate (26), having with the corresponding through hole of hand-hole (32) (28) of secondary conductor aluminium (10) and with the corresponding through hole of Syncronous induction arbor (8) (30); Side plate (26) is gone up and permanent magnet (12) and the corresponding position of magnetic flux wall (20) are shut.
2, the manufacture method of synchronous induction electromotor rotor in a kind of claim 1 is characterized in that making rotor and carries out as follows:
The punching press chip, make rotor core: the punching press chip laminates and makes rotor core (4); On iron core, be formed for injecting the hand-hole (32) of secondary conductor aluminium (10);
Insert permanent magnet: after the hand-hole (32) of rotor core (4) forms, permanent magnet (12) is inserted in the rotor core (4);
Paste side plate in the rotor core two sides: the two sides that biside plate (26) are attached to rotor core (4) respectively;
Die casting aluminium: aluminium is gone up by side plate (26) and the corresponding through hole of hand-hole (28) is injected in the hand-hole (32) with pressure casting method, made the secondary conductor aluminium (10) in the rotor core of packing into (4);
Finish the synchronous induction electromotor rotor manufacturing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01144401 CN1223069C (en) | 2001-12-17 | 2001-12-17 | Rotor of synchronous induction motor and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01144401 CN1223069C (en) | 2001-12-17 | 2001-12-17 | Rotor of synchronous induction motor and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1427525A CN1427525A (en) | 2003-07-02 |
| CN1223069C true CN1223069C (en) | 2005-10-12 |
Family
ID=4677549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01144401 Expired - Fee Related CN1223069C (en) | 2001-12-17 | 2001-12-17 | Rotor of synchronous induction motor and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1223069C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100467850C (en) * | 2005-09-06 | 2009-03-11 | 株式会社电装 | Fluid pump and motor and method for manufacturing same |
| CN101262158B (en) * | 2008-04-16 | 2011-01-05 | 广州嘉特利微电机实业有限公司 | A synchronous induction electromotor rotor making method |
| CN106602809B (en) * | 2017-02-14 | 2021-02-12 | 哈尔滨东安发动机（集团）有限公司 | Assembling method of cast aluminum rotor assembly with built-in magnetic steel |
-
2001
- 2001-12-17 CN CN 01144401 patent/CN1223069C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1427525A (en) | 2003-07-02 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051012 Termination date: 20100118 |