CN104852542A - Pump asynchronous starting permanent magnetism three-phase synchronous motor - Google Patents
Pump asynchronous starting permanent magnetism three-phase synchronous motor Download PDFInfo
- Publication number
- CN104852542A CN104852542A CN201410561403.3A CN201410561403A CN104852542A CN 104852542 A CN104852542 A CN 104852542A CN 201410561403 A CN201410561403 A CN 201410561403A CN 104852542 A CN104852542 A CN 104852542A
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- CN
- China
- Prior art keywords
- rotating shaft
- rotor
- earth permanent
- iron core
- permanent magnet
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/46—Motors having additional short-circuited winding for starting as an asynchronous motor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The invention discloses a pump asynchronous starting permanent magnetism three-phase synchronous motor, mainly composed of a rotating shaft, a front end cover, a stator winding, a base, a stator iron core, a rotor iron core, rare earth permanent magnets, starting cage copper bars, a rear end cover, a fan, a fan housing and a junction box. The rotating shaft is arranged at a central shaft position of the rotor iron core; rotor slots are symmetrically and uniformly punched on the periphery of the rotor iron core; the starting cage copper bars are arranged in the rotor slots of the rotor iron core; four rare earth permanent magnets of same dimensions are uniformly arranged in the center of the rotor iron core between the starting cage copper bars and the rotating shaft in a radial direction; one end of each rare earth permanent magnet close to the rotating shaft is provided with an air slot magnetic shield. The pump asynchronous starting permanent magnetism three-phase synchronous motor employs a built-in rare earth permanent magnet rotor structure, has the characteristics of small size, light weight, less material consumption, high efficiency and power factor, reliable operation, etc., and possesses a wider development prospect applied to a pump system.
Description
Technical field
The present invention relates to technical field of motors, specifically a kind of pump asynchronous starting and permanent magnet three-phase synchronous motor.
Background technology
Water pump is in secondary water supply system application, under most of time motor is all in and departs from nominal load and the larger state of rated speed, pump motor efficiency is the meeting efficient district of substantial deviation under underload converting operation, power factor also greatly declines, less than 60% in a lot of situation of electric efficiency, when motor is when lower than 60% nominal load work, efficiency is by decline more than 15%, power factor declines more than 30%, energy index declines more than 40%, thus the substantial deviation economical operation scope of motor, not only there is larger energy loss, and reduce the useful life of motor.
Summary of the invention
The object of the present invention is to provide and a kind of there is wider economical operation scope and energy-efficient pump asynchronous starting and permanent magnet three-phase synchronous motor.
The technical solution adopted for the present invention to solve the technical problems is: pump asynchronous starting and permanent magnet three-phase synchronous motor is primarily of rotating shaft, front end housing, stator winding, support, stator core, rotor core, rare-earth permanent magnet, start cage copper bar, rear end cap, fan, fan housing and terminal box composition, stator winding is embedded in the stator slot of stator core, stator core is fixed in support, support two ends are equiped with front end housing and rear end cap respectively, rotor is equiped with in support between front end housing and rear end cap, rotor is positioned at the inner chamber of stator core and stator winding, and rotor and stator core and stator winding leave certain interval, described rotor comprises rotating shaft, rotor core, rare-earth permanent magnet and startup cage copper bar, rotating shaft is the rotating shaft of rotor core, for installing rotor core, and transmitting torque and output mechanical power, rotating shaft is placed in the cental axial position of rotor core, and the two ends of rotating shaft extend respectively and pass through the center of front end housing and rear end cap, bearing is equiped with respectively at the center of front end housing and rear end cap, rotating shaft is placed in bearing, to ensure that rotor can drive rotating shaft Rotating with Uniform, one end that front end housing is stretched out in rotating shaft connects with water pump, be provided with flange at front end housing to coordinate with the pump housing and install, the other end of rotating shaft passes through rear end cap and is equiped with fan, fan housing protection is arranged with outside fan, fan housing is fixed on support by screw, support is also provided with terminal box.
Described rotor core is formed by the silicon steel plate stacking that 0.5mm is thick, the rotor had symmetrically and evenly is rushed at rotor core circumference, be equiped with in the rotor of rotor core and start cage copper bar, starting, the rotor core between cage copper bar and rotating shaft is inner radially evenly puts the 4 pieces of rare-earth permanent magnets having dimensions identical, and be respectively equipped with air groove every magnetic at rare-earth permanent magnet near one end of rotating shaft, air groove is set to circular arc strip around rotating shaft, and adjacent vacant air drain separated be not connected mutually.Described rare-earth permanent magnet is a kind of Nd-Fe-Bo permanent magnet material, has the feature of high energy product, high-coercive force, high residual flux density, high response speed and high stability.
The invention has the beneficial effects as follows, the present invention adopts the rotor structure of built-in rare-earth permanent magnet, have that volume is little, lightweight, loss is little, efficiency is high, power factor is high, reliable etc. distinguishing feature, be applied to water pump system and there is comparatively vast potential for future development.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention;
Accompanying drawing 2 is the A-A cutaway view of accompanying drawing 1.
In figure, 1, rotating shaft, 2, flange, 3, front end housing, 4, stator winding, 5, support, 6, stator core, 7, rotor core, 8, rare-earth permanent magnet, 9, start cage copper bar, 10, bearing, 11, rear end cap, 12, fan, 13, fan housing, 14, screw, 15, terminal box, 16, air groove, 17, stator slot, 18, rotor.
Embodiment
With regard to accompanying drawing 1 and accompanying drawing 2, pump asynchronous starting and permanent magnet three-phase synchronous motor of the present invention is described in detail below below.
As shown in Figures 1 and 2, pump asynchronous starting and permanent magnet three-phase synchronous motor of the present invention is primarily of rotating shaft 1, front end housing 3, stator winding 4, support 5, stator core 6, rotor core 7, rare-earth permanent magnet 8, start cage copper bar 9, rear end cap 11, fan 12, fan housing 13 and terminal box 15 form, stator winding 4 is embedded in the stator slot 17 of stator core 6, stator core 6 is fixed in support 5, support 5 two ends are equiped with front end housing 3 and rear end cap 11 respectively, rotor is equiped with in support 5 between front end housing 3 and rear end cap 11, rotor is positioned at the inner chamber of stator core 6 and stator winding 4, and rotor and stator core 6 and stator winding 4 leave certain interval, described rotor comprises rotating shaft 1, rotor core 7, rare-earth permanent magnet 8 and startup cage copper bar 9, rotating shaft 1 is the rotating shaft of rotor core 7, for installing rotor core 7, and transmitting torque and output mechanical power, rotating shaft 1 is placed in the cental axial position of rotor core 7, and the two ends of rotating shaft 1 extend respectively and pass through the center of front end housing 3 and rear end cap 11, bearing 10 is equiped with respectively at the center of front end housing 3 and rear end cap 11, rotating shaft 1 is placed in bearing 10, to ensure that rotor can drive rotating shaft 1 Rotating with Uniform, one end that front end housing 3 is stretched out in rotating shaft 1 connects with water pump, be provided with flange 2 at front end housing 3 to coordinate with the pump housing and install, the other end of rotating shaft 1 passes through rear end cap 11 and is equiped with fan 12, be arranged with fan housing 13 outside fan 12 to protect, fan housing 13 is fixed on support 5 by screw 14, support 5 is also provided with terminal box 15.
Described rotor core 7 is formed by the silicon steel plate stacking that 0.5mm is thick, the rotor 18 had symmetrically and evenly is rushed at rotor core 7 circumference, be equiped with in the rotor 18 of rotor core 7 and start cage copper bar 9, the 4 pieces of rare-earth permanent magnets 8 having dimensions identical are radially evenly put in rotor core 7 inside between startup cage copper bar 9 and rotating shaft 1, and be respectively equipped with air groove 16 every magnetic at rare-earth permanent magnet 8 near one end of rotating shaft 1, air groove 16 is set to circular arc strip around rotating shaft 1, and adjacent vacant air drain 16 separated be not connected mutually.
Claims (1)
1. a pump with asynchronous starting and permanent magnet three-phase synchronous motor primarily of rotating shaft, front end housing, stator winding, support, stator core, rotor core, rare-earth permanent magnet, start cage copper bar, rear end cap, fan, fan housing and terminal box composition, rotating shaft is placed in the cental axial position of rotor core, it is characterized in that, the rotor had symmetrically and evenly is rushed at rotor core circumference, be equiped with in the rotor of rotor core and start cage copper bar, starting, the rotor core between cage copper bar and rotating shaft is inner radially evenly puts the 4 pieces of rare-earth permanent magnets having dimensions identical, and be respectively equipped with air groove every magnetic at rare-earth permanent magnet near one end of rotating shaft, air groove is set to circular arc strip around rotating shaft, and adjacent vacant air drain separated be not connected mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410561403.3A CN104852542A (en) | 2014-10-22 | 2014-10-22 | Pump asynchronous starting permanent magnetism three-phase synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410561403.3A CN104852542A (en) | 2014-10-22 | 2014-10-22 | Pump asynchronous starting permanent magnetism three-phase synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104852542A true CN104852542A (en) | 2015-08-19 |
Family
ID=53851967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410561403.3A Pending CN104852542A (en) | 2014-10-22 | 2014-10-22 | Pump asynchronous starting permanent magnetism three-phase synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104852542A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026576A (en) * | 2016-06-29 | 2016-10-12 | 清华大学 | Asynchronous starting permanent-magnet synchronous motor with smooth self-starting function |
| CN107276354A (en) * | 2017-08-21 | 2017-10-20 | 伊泽瑞尔(大连)科技有限公司 | A kind of rotor of tangential permanent magnetic synchronous motor |
| CN108390532A (en) * | 2018-04-28 | 2018-08-10 | 深圳市永盛微波技术有限公司 | A kind of planar coil three-phase synchronous motor based on polyimides |
| CN111828337A (en) * | 2019-04-18 | 2020-10-27 | 广西大学 | High-lift large-flow water-spraying fire-fighting vehicle-mounted device |
-
2014
- 2014-10-22 CN CN201410561403.3A patent/CN104852542A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026576A (en) * | 2016-06-29 | 2016-10-12 | 清华大学 | Asynchronous starting permanent-magnet synchronous motor with smooth self-starting function |
| CN106026576B (en) * | 2016-06-29 | 2018-06-22 | 清华大学 | A kind of smooth self-running line-start permanent magnetic synchronous motor of energy |
| CN107276354A (en) * | 2017-08-21 | 2017-10-20 | 伊泽瑞尔(大连)科技有限公司 | A kind of rotor of tangential permanent magnetic synchronous motor |
| CN107276354B (en) * | 2017-08-21 | 2024-02-09 | 伊泽瑞尔(大连)科技有限公司 | Rotor of tangential permanent magnet synchronous motor |
| CN108390532A (en) * | 2018-04-28 | 2018-08-10 | 深圳市永盛微波技术有限公司 | A kind of planar coil three-phase synchronous motor based on polyimides |
| CN108390532B (en) * | 2018-04-28 | 2023-08-15 | 成都川大技术转移集团有限公司 | Planar coil three-phase synchronous motor based on polyimide |
| CN111828337A (en) * | 2019-04-18 | 2020-10-27 | 广西大学 | High-lift large-flow water-spraying fire-fighting vehicle-mounted device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150819 |
|
| WD01 | Invention patent application deemed withdrawn after publication |