CN108574356A - A kind of canned motor pump motor permanent magnet rotor structure - Google Patents
A kind of canned motor pump motor permanent magnet rotor structure Download PDFInfo
- Publication number
- CN108574356A CN108574356A CN201810429636.6A CN201810429636A CN108574356A CN 108574356 A CN108574356 A CN 108574356A CN 201810429636 A CN201810429636 A CN 201810429636A CN 108574356 A CN108574356 A CN 108574356A
- Authority
- CN
- China
- Prior art keywords
- rotor
- permanent magnet
- motor
- canned
- rotor structure
- 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
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
Abstract
A kind of canned motor pump motor permanent magnet rotor structure, including arc magnet steel, cast aluminium winding and housing, rotor embed arc magnet steel, and rotor is equipped with cast aluminium winding, and housing is equipped on the outside of rotor, and stainless steel shielding is put on equipped with diversion channel slot.The canned motor pump motor permanent magnet rotor structure of the present invention, electric efficiency is significantly improved using permanent magnet synchronous motor instead of threephase asynchronous；Permanent magnet is embedded using arc magnet steel, can significantly reduce the torque fluctuation of permanent magnet pole；It is designed with diversion channel slot in rotor shielding sleeve outer diameter, the flow of heat eliminating medium between rotor can be increased, improves radiating condition, reduces motor temperature rise, improves motor performance.
Description
Technical field
The present invention relates to shielded electric pump technical fields, more particularly to the matching used motor of shielded electric pump.
Background technology
The shielded electric pump that country chemical plant uses at present, matching used shield electric machine are all made of threephase asynchronous,
Normal phase asynchronous shield electric machine, rotor mostly uses mouse-cage type cast-aluminum rotor or copper bar rotor, due to asynchronous machine rotary magnetic
With the presence of rotor slip, have eddy-current loss on stator can and generate, and formed a complete production network by threephase asynchronous
Canned motor pump will produce housing eddy-current loss in the process of running, which can reduce by 15% ~ 20% efficiency of motor, for improving
Product efficiency, saving electric energy etc. room for promotion are limited.
In addition, the stator can fever due to phase asynchronous shield electric machine can also improve motor temperature rise, motor is influenced
Energy.
Invention content
In order to solve the above problem existing for the existing shielded electric pump using threephase asynchronous, the present invention provides
A kind of canned motor pump motor permanent magnet rotor structure.
Present invention technical solution used for the above purpose is：A kind of canned motor pump motor permanent magnet rotor structure, packet
Bracket magnet steel, cast aluminium winding and housing, rotor embed arc magnet steel, and rotor is equipped with cast aluminium winding, is equipped on the outside of rotor
Housing.
The stainless steel shielding is put on equipped with diversion channel slot.
The canned motor pump motor permanent magnet rotor structure of the present invention replaces threephase asynchronous very big using permanent magnet synchronous motor
Degree improves electric efficiency；Permanent magnet is embedded using arc magnet steel, can significantly drop the torque fluctuation of permanent magnet pole
It is low；It is designed with diversion channel slot in rotor shielding sleeve outer diameter, the flow of heat eliminating medium between rotor can be increased, improves heat sink strip
Part reduces motor temperature rise, improves motor performance.
Description of the drawings
Fig. 1 is canned motor pump motor permanent magnetic rotor end face structure figure of the present invention.
Fig. 2 is canned motor pump motor permanent magnetic rotor overall structure figure of the present invention.
In figure：1, diversion trench, 2, cast aluminium winding, 3, arc magnet steel, 4, housing.
Specific implementation mode
The canned motor pump motor permanent magnet rotor structure of the present invention is as depicted in figs. 1 and 2, including arc magnet steel 3, cast aluminium winding 2
With housing 4, rotor embeds arc magnet steel 3, and rotor is equipped with cast aluminium winding 2, housing 4, stainless steel screen are equipped on the outside of rotor
It covers set 4 and is equipped with diversion channel slot 1.
The present invention designs self-start permanent-magnet synchronous shielded electric pump, rotor using the permanent magnet synchronous motor structure mating with pump
Upper design self-starting cast aluminium winding 2, the induction torque realization generated with cage-type rotor interaction by stator rotating excitation field are opened
It is dynamic.When normal operation, rotor operation no longer works in synchronous rotational speed, cage-type rotor.
Permanent magnet is embedded using arc magnet steel 3, and arc magnet steel 3 uses radial magnetizing, and the direction of the magnetic line of force is by justifying
The heart is to the direction of external radiation.Under the action of rotor each section rationally designs, the torque fluctuation of permanent magnet pole can significantly be dropped
It is low.
Spiral grooves 1 are designed on the outside of rotor on stainless steel housing 4, canned motor pump at runtime, it is logical can to increase medium
The flow in stator and rotor gap is crossed, radiating condition is improved, reduces motor temperature rise, improves motor performance.
New shielded electric pump electric machine structure has the advantage that compared with original structure：Invariablenes turning speed is synchronous rotational speed, pump fortune
Flow, lift are stablized when row；Power factor is high；Machine volume is small, light-weight；It is efficient, improve 15% ~ 20%.And it is shielding
Pump low-load operating condition still has very high electric efficiency；Temperature rises low.
The present invention is described by embodiment, and those skilled in the art know, in the spirit for not departing from the present invention
In the case of range, various changes or equivalence replacement can be carried out to these features and embodiment.In addition, in the religion of the present invention
It leads down, can modify to these features and embodiment with the essence for adapting to particular situation and material without departing from the present invention
God and range.Therefore, the present invention is not limited to the particular embodiment disclosed, fallen with claims hereof
Embodiment in range belongs to protection scope of the present invention.
Claims (2)
1. a kind of canned motor pump motor permanent magnet rotor structure, it is characterised in that：Including arc magnet steel（3）, cast aluminium winding（2）And shielding
Set（4）, the embedded arc magnet steel of rotor（3）, rotor is equipped with cast aluminium winding（2）, rotor outside is equipped with housing（4）.
2. a kind of canned motor pump motor permanent magnet rotor structure according to claim 1, it is characterised in that：The stainless steel shielding
Set（4）It is equipped with diversion channel slot（1）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810429636.6A CN108574356A (en) | 2018-05-08 | 2018-05-08 | A kind of canned motor pump motor permanent magnet rotor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810429636.6A CN108574356A (en) | 2018-05-08 | 2018-05-08 | A kind of canned motor pump motor permanent magnet rotor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108574356A true CN108574356A (en) | 2018-09-25 |
Family
ID=63571934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810429636.6A Pending CN108574356A (en) | 2018-05-08 | 2018-05-08 | A kind of canned motor pump motor permanent magnet rotor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108574356A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101873043A (en) * | 2010-07-14 | 2010-10-27 | 天津驰达电机有限公司 | Asynchronous starting and permanent magnet synchronous submersible pump motor |
| CN102306965A (en) * | 2011-09-13 | 2012-01-04 | 陈强 | Permanent magnet motor rotor |
| CN103545986A (en) * | 2013-10-12 | 2014-01-29 | 中国核动力研究设计院 | Cooling structure of stator bore of shield motor |
| CN104638788A (en) * | 2015-02-04 | 2015-05-20 | 浙江大学 | Rotor sheath of high-speed permanent magnet motor |
-
2018
- 2018-05-08 CN CN201810429636.6A patent/CN108574356A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101873043A (en) * | 2010-07-14 | 2010-10-27 | 天津驰达电机有限公司 | Asynchronous starting and permanent magnet synchronous submersible pump motor |
| CN102306965A (en) * | 2011-09-13 | 2012-01-04 | 陈强 | Permanent magnet motor rotor |
| CN103545986A (en) * | 2013-10-12 | 2014-01-29 | 中国核动力研究设计院 | Cooling structure of stator bore of shield motor |
| CN104638788A (en) * | 2015-02-04 | 2015-05-20 | 浙江大学 | Rotor sheath of high-speed permanent magnet motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180925 |