CN105071621A - Asynchronously-started permanent-magnet submersible motor - Google Patents
Asynchronously-started permanent-magnet submersible motor Download PDFInfo
- Publication number
- CN105071621A CN105071621A CN201510518711.2A CN201510518711A CN105071621A CN 105071621 A CN105071621 A CN 105071621A CN 201510518711 A CN201510518711 A CN 201510518711A CN 105071621 A CN105071621 A CN 105071621A
- Authority
- CN
- China
- Prior art keywords
- permanent
- coil
- magnet
- rotor
- rotating shaft
- 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
Links
Landscapes
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The invention relates to the technical field of motor equipment, in particular to an asynchronously-started permanent-magnet submersible motor. The asynchronously-started permanent-magnet submersible motor comprises a machine base, a stator coil and a rotor mechanism, wherein the stator coil is fixed in the machine base, the rotor mechanism is assembled in the stator coil in a rotatable manner, the rotor mechanism comprises a rotor coil and even number of permanent magnets, the rotor coil is assembled in the stator coil in a rotatable manner, the rotor coil and the stator coil are coaxially arranged, the permanent magnets are arranged in the rotor coil and are arranged in a polygonal shape symmetrically relative to the axis of the rotor coil, and magnetic poles of the adjacent permanent magnets are opposite. By arranging the permanent magnets in a polygonal shape symmetrically, the asynchronously-started permanent-magnet submersible motor effectively reduces size and weight of the rotor mechanism and can ensure that the permanent magnets cut a magnetic field generated by the stator coil efficiently in rotation, thereby acquiring higher magnetic flux density, so as to ensure that the asynchronously-started permanent-magnet submersible motor has high power; and the starting step is simplified, the control system is simple, and the operation and maintenance are convenient.
Description
Technical field
The present invention relates to motor apparatus technical field, particularly relate to a kind of permanent-magnet water-submersible electric machine of asynchronous starting.
Background technology
Submersible electric motor usually and pump combinationally use, or directly load onto pump part by submersible electric motor axle stretch end and form pump unification product, slipping in mine water or rivers, lake, work is carried out in ocean water and in other occasion water, it is little that it has volume, lightweight, prestart does not need diversion, not by the degree system of suction, do not need separately to establish pump house, easy to install, dependable performance, efficiency is higher, cheap, can the advantage such as investment reduction, be widely used in from down-hole or rivers, fetch water in lake, agricultural irrigation, urban water supply, industrial and mining enterprises' draining, urban and rural buildings draining, resident living water, city or plant effuent filth disposal etc., meanwhile, submersible electric motor also can as the supporting power source of various submarine mechanical, as bridge river and building detection rig drive motor, various Hydraulic Service Under Water propeller power sources etc.
At present, the volume and weight of the general submersible pump on market affects comparatively greatly by the supporting of submersible motor, and the volume and weight of submersible motor supporting when parameters of pump is larger also increases thereupon.Therefore high-power submerged pump often adopts vehicle-mounted or trailer form to be transported to scene when carrying, and uses hoisting equipment to carry out auxiliary construction, thus causes its use very inconvenient.Though adopt permanent magnet frequency conversion motor immersible pump small in volume another kind of but need variable frequency starting, control system is more complicated need be equipped with technical staff's Operation and Maintenance.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention there is provided a kind of permanent-magnet water-submersible electric machine of asynchronous starting, can effectively reduce its volume and weight, and it is simple to have control system, and Operation and Maintenance is feature easily.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of permanent-magnet water-submersible electric machine of asynchronous starting, the stator coil comprising support, rotor mechanism and be fixed in described support, described rotor mechanism is rotating to be assemblied in described stator coil; Described rotor mechanism comprises rotor coil and even number of permanent magnets, described rotor coil is rotating to be assemblied in described stator coil, and coaxially arrange with described stator coil, described permanent magnet is arranged in described rotor coil, and be arranged to polygon relative to the axisymmetrical of described rotor coil, the magnetic pole of adjacent described permanent magnet is contrary.
Wherein, described rotor mechanism also comprises rotating shaft, and described shaft set in described rotor coil, and is coaxially arranged with described rotor coil, and described permanent magnet is arranged between described rotor coil and rotating shaft.
Wherein, be provided with even number between described rotor coil and rotating shaft for installing the through hole of described permanent magnet, described through hole is arranged to polygon relative to the axisymmetrical of described rotating shaft, and closes connection between each described through hole.
Wherein, the quantity of described through hole is two, and two described through holes are arranged relative to the axisymmetrical of described rotating shaft, and two ends connect into quadrangle, and two described permanent magnet symmetries are installed in two described through holes, and the magnetic of two described permanent magnets is contrary.
Wherein, the quantity of described through hole is four or more even number, and the polygonal limit number be arranged to relative to the axisymmetrical of described rotating shaft by described through hole is four or more even number.
Wherein, described permanent magnet comprises multiple permanent magnetism sheet, parallel being arranged in a described through hole of multiple described permanent magnetism sheet, and the same pole of each described permanent magnetism sheet is all arranged at same one end of described through hole.
Wherein, the two ends of described support are installed with bearing pedestal respectively, and the two ends of described rotating shaft are set with in described bearing pedestal.
Wherein, the two ends of described rotating shaft are loaded in described bearing pedestal respectively by bearing holder (housing, cover).
Wherein, described rotor coil is mouse-cage type coil, comprises multiple squirrel-cage bar, and the quantity of described squirrel-cage bar is 8-64 root, and described in every root, the cross section of squirrel-cage bar is polygon.
Wherein, described stator coil is provided with multiple stator slot for wrap wire, and described stator slot is straight trough.
(3) beneficial effect
Technique scheme of the present invention has following beneficial effect: the stator coil of the permanent-magnet water-submersible electric machine of asynchronous starting of the present invention is fixed in support, and rotor mechanism is rotating to be assemblied in stator coil; Rotor mechanism comprises rotor coil and even number of permanent magnets, rotor coil is rotating to be assemblied in stator coil, and coaxially arranges with stator coil, and permanent magnet is arranged in rotor coil, and be arranged to polygon relative to the axisymmetrical of rotor coil, the magnetic pole of adjacent permanent magnet is contrary.The permanent-magnet water-submersible electric machine of this asynchronous starting is by being symmetrical arranged into polygon by permanent magnet, both the volume and weight of rotor mechanism had been effectively reduced, the permanent magnet magnetic field that high efficiency cutting stator coil produces when rotating can be ensured again, thus obtain higher magnetic flux density, to ensure that it still has larger power, and simplifying the step of startup, control system is simple, and Operation and Maintenance is convenient.
Accompanying drawing explanation
Fig. 1 is the structural representation of the permanent-magnet water-submersible electric machine of the embodiment of the present invention;
Fig. 2 is the front view of the rotor mechanism of the embodiment of the present invention;
Fig. 3 is the end view of the rotor mechanism of the embodiment of the present invention.
Wherein, 1, support; 2, bearing pedestal; 3, stator coil; 4, rotating shaft; 5, bearing; 6, permanent magnet; 7, through hole; 8, rotor coil.
Embodiment
Below in conjunction with drawings and Examples, embodiments of the present invention are described in further detail.Following examples for illustration of the present invention, but can not be used for limiting the scope of the invention.
In describing the invention, except as otherwise noted, the implication of " multiple " is two or more.Term " on ", D score, "left", "right", " interior ", " outward ", " front end ", " rear end ", " head ", the orientation of the instruction such as " afterbody " or position relationship be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
As shown in Figure 1, the stator coil 3 of the permanent-magnet water-submersible electric machine of the asynchronous starting that the present embodiment provides is fixed in support 1, and rotor mechanism is rotating to be assemblied in stator coil 3; Rotor mechanism comprises rotor coil 8 and even number of permanent magnets 6, and rotor coil 8 is rotating to be assemblied in stator coil 3, and coaxially arranges with stator coil 3, and when permanent-magnet water-submersible electric machine just starts, rotor coil 8 drives rotating shaft 4 relative stator coil 3 to rotate.
Rotor mechanism comprises permanent magnet 6, rotor coil 8 and rotating shaft 4, permanent magnet 6 is arranged in rotor coil 8, and be arranged to polygon relative to the axisymmetrical of rotor coil 8, the magnetic pole of adjacent permanent magnet 6 is contrary, the rotating shaft 4 of rotor mechanism is set in rotor coil 8, and coaxially arrange with rotor coil 8, permanent magnet 6 is arranged between rotor coil 8 and rotating shaft 4.The magnetic field that cutting stator coil 3 produces when rotating, magnetic field that the permanent magnet 6 that adjacent magnetic is contrary produces, rotating shaft 4 is driven to rotate by magnetic fields, thus replace rotor coil 8 Driving Torque, this permanent-magnet water-submersible electric machine is enable to reach total power output effect, the volume and weight of rotor mechanism can be effectively reduced, permanent magnet 6 magnetic field that high efficiency cutting stator coil 3 produces when rotating can be ensured again, thus obtain higher magnetic flux density, to ensure that it still has larger power, and simplify the step of startup, control system is simple, and Operation and Maintenance is convenient.
The stator coil 3 of the present embodiment, rotor coil 8 and rotating shaft 4 are coaxially installed, as Fig. 2, shown in Fig. 3, in order to ensure the reliable installation of permanent magnet 6, even number is provided with for installing the through hole 7 of permanent magnet 6 between rotor coil 8 and rotating shaft 4, the axisymmetrical of through hole 7 phase countershaft 4 is arranged to polygon, and close connection between each through hole 7, arranging of through hole 7 effectively can control the laying structure of permanent magnet 6 in rotor coil 8 inside, effectively reduce the volume required of rotor coil 8 and weight further, and ensure that the magnetic limit of distribution of permanent magnet 6 is clear, with the efficient Driving Torque of magnetic field interaction that the magnetic field and stator coil 3 that ensure permanent magnet 6 are formed.
The minimum number of through hole 7 is two, and two through holes 7 are arranged relative to the axisymmetrical of rotating shaft 4, and the two ends of two through holes 7 connect into quadrangle or class quadrangle, and two permanent magnet 6 symmetries are installed in two through holes 7, and the magnetic of two permanent magnets 6 is contrary.
The quantity of through hole 7 also can be four or more even number, and the polygonal limit number be arranged to relative to the axisymmetrical of rotating shaft 4 by through hole 7 is four or more even number.Through hole 7 quantity of the present embodiment is four, is arranged to quadrangle with the axisymmetrical of rotating shaft 4, and four through holes 7 are closed not connected each other, and during to ensure that permanent magnet 6 is installed in through hole, the magnetic pole of adjacent permanent magnet 6 can not affect each other.
The permanent magnet 6 of the present embodiment comprises multiple permanent magnetism sheet, and what multiple permanent magnetism sheet was parallel is arranged in each through hole 7, and the same pole of each permanent magnetism sheet is all arranged at same one end of this through hole 7, consistent to guarantee the magnetic of the permanent magnet 6 installed in this through hole 7.Parallel installation permanent magnetism sheet effectively can simplify the installation process of permanent magnet 6, is convenient to dismounting and change or maintenance.
In order to ensure that the rotation of rotor mechanism in stator coil 3 is reliable, the two ends of the support 1 of the present embodiment are installed with bearing pedestal 2 respectively, and the two ends of rotating shaft 4 are set with in bearing pedestal 2; In order to ensure that rotating shaft 4 is connected with the reliable of bearing pedestal 2, the two ends of rotating shaft 4 are set in described bearing pedestal 2 respectively by bearing 5.
The rotor coil 8 of the present embodiment is mouse-cage type coil, and this mouse-cage type coil comprises multiple squirrel-cage bar, and the quantity of preferred squirrel-cage bar is 8-64 root, and the cross section of every root squirrel-cage bar is polygon.Cage rotor coil 8 magnetic field that cutting stator coil 3 produces when this permanent-magnet water-submersible electric machine starts, rotor driven mechanism produces asynchronous rotary.
The stator coil 3 of the present embodiment is provided with multiple stator slot for wrap wire, and stator slot is straight trough, and this stator coil 3 is iron-core coil.
The course of work of the permanent-magnet water-submersible electric machine of the asynchronous starting of the present embodiment is as described below: when permanent-magnet water-submersible electric machine starts, the magnetic field that rotor coil 8 cutting stator coil 3 produces, rotor mechanism is made to produce asynchronous rotary, when the magnetic field speed of service that the rotating speed of rotor mechanism produces close to stator coil 3, the field synchronous of the magnetic field that the permanent magnet 6 on rotor mechanism produces and stator coil 3 runs, replace rotor coil 8 Driving Torque in motor, thus reach the object of permanent-magnet synchronous output, make this permanent-magnet water-submersible electric machine reach total power to export, now the rotational power source of rotor mechanism is no longer provided by cage rotor coil 8.Therefore, this permanent-magnet water-submersible electric machine is by cage-shaped structure asynchronous starting, the lightweight heavy-duty motor that operated by permanent-magnet synchronous.
The permanent-magnet water-submersible electric machine of the asynchronous starting of the present embodiment can obtain higher magnetic flux density compared to existing submersible motor technology, reach the object reducing motor volume, the step of variable frequency starting is in turn simplify relative to permanent-magnetic variable-frequency motor, eliminate the parts such as frequency converter, non-technical personnel also can operate; And under the prerequisite meeting performance, reduce the volume and weight of motor for submerged pump significantly, reach the object reducing complete machine weight.
It should be noted that, any water pump hydraulic part so as to implementing the permanent-magnet water-submersible electric machine described in the present embodiment, can reduce the volume and weight of the water pump matched, so this permanent-magnet water-submersible electric machine is not limited to motor pole number, shape, watt level.
In sum, the stator coil 3 of the permanent-magnet water-submersible electric machine of the asynchronous starting of the present embodiment is fixed in support 1, and rotor mechanism is rotating to be assemblied in stator coil 3; Rotor mechanism comprises rotor coil 8 and even number of permanent magnets 6, rotor coil 8 is rotating to be assemblied in stator coil 3, and coaxially arrange with stator coil 3, permanent magnet 6 is arranged in rotor coil 8, and be arranged to polygon relative to the axisymmetrical of rotor coil 8, the magnetic pole of adjacent permanent magnet 6 is contrary.The permanent-magnet water-submersible electric machine of this asynchronous starting is by being symmetrical arranged into polygon by permanent magnet 6, both the volume and weight of rotor mechanism had been effectively reduced, the magnetic field energy that permanent magnet 6 is formed when rotating and the magnetic field generation effect that stator coil 3 produces can be ensured again, thus obtain higher magnetic flux density, to ensure that it still has larger power, and simplifying the step of startup, control system is simple, and Operation and Maintenance is convenient.
Embodiments of the invention provide in order to example with for the purpose of describing, and are not exhaustively or limit the invention to disclosed form.Many modifications and variations are apparent for the ordinary skill in the art.Selecting and describing embodiment is in order to principle of the present invention and practical application are better described, and enables those of ordinary skill in the art understand the present invention thus design the various embodiments with various amendment being suitable for special-purpose.
Claims (10)
1. the permanent-magnet water-submersible electric machine of an asynchronous starting, it is characterized in that, comprise support (1), rotor mechanism and be fixed on the stator coil (3) in described support (1), described rotor mechanism is rotating to be assemblied in described stator coil (3); Described rotor mechanism comprises rotor coil (8) and even number of permanent magnets (6), described rotor coil (8) is rotating to be assemblied in described stator coil (3), and coaxially arrange with described stator coil (3), described permanent magnet (6) is arranged in described rotor coil (8), and be arranged to polygon relative to the axisymmetrical of described rotor coil (8), the magnetic pole of adjacent described permanent magnet (6) is contrary.
2. the permanent-magnet water-submersible electric machine of asynchronous starting according to claim 1, it is characterized in that, described rotor mechanism also comprises rotating shaft (4), described rotating shaft (4) is set in described rotor coil (8), and coaxially arrange with described rotor coil (8), described permanent magnet (6) is arranged between described rotor coil (8) and rotating shaft (4).
3. the permanent-magnet water-submersible electric machine of asynchronous starting according to claim 2, it is characterized in that, even number is provided with for installing the through hole (7) of described permanent magnet (6) between described rotor coil (8) and rotating shaft (4), described through hole (7) is arranged to polygon relative to the axisymmetrical of described rotating shaft (4), and closes connection between each described through hole (7).
4. the permanent-magnet water-submersible electric machine of asynchronous starting according to claim 3, it is characterized in that, the quantity of described through hole (7) is two, two described through holes (7) are arranged relative to the axisymmetrical of described rotating shaft (4), and two ends connect into quadrangle, two described permanent magnet (6) symmetries are installed in two described through holes (7), and the magnetic of two described permanent magnets (6) is contrary.
5. the permanent-magnet water-submersible electric machine of asynchronous starting according to claim 3, it is characterized in that, the quantity of described through hole (7) is four or more even number, and the polygonal limit number be arranged to relative to the axisymmetrical of described rotating shaft (4) by described through hole (7) is four or more even number.
6. the permanent-magnet water-submersible electric machine of the asynchronous starting according to any one of claim 3-5, it is characterized in that, described permanent magnet (6) comprises multiple permanent magnetism sheet, what multiple described permanent magnetism sheet was parallel is arranged in a described through hole (7), and the same pole of each described permanent magnetism sheet is all arranged at same one end of described through hole (7).
7. the magnetic submersible motor of asynchronous starting forever according to claim 2, it is characterized in that, the two ends of described support (1) are installed with bearing pedestal (2) respectively, and the two ends of described rotating shaft (4) are set with in described bearing pedestal (2).
8. the permanent-magnet water-submersible electric machine of asynchronous starting according to claim 5, is characterized in that, the two ends of described rotating shaft (4) are set in described bearing pedestal (2) respectively by bearing (5).
9. the permanent-magnet water-submersible electric machine of asynchronous starting according to claim 1, it is characterized in that, described rotor coil (8) is mouse-cage type coil, comprises multiple squirrel-cage bar, the quantity of described squirrel-cage bar is 8-64 root, and described in every root, the cross section of squirrel-cage bar is polygon.
10. the permanent-magnet water-submersible electric machine of asynchronous starting according to claim 1, is characterized in that, described stator coil (3) is provided with multiple stator slot for wrap wire, and described stator slot is straight trough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510518711.2A CN105071621A (en) | 2015-08-21 | 2015-08-21 | Asynchronously-started permanent-magnet submersible motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510518711.2A CN105071621A (en) | 2015-08-21 | 2015-08-21 | Asynchronously-started permanent-magnet submersible motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105071621A true CN105071621A (en) | 2015-11-18 |
Family
ID=54500930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510518711.2A Pending CN105071621A (en) | 2015-08-21 | 2015-08-21 | Asynchronously-started permanent-magnet submersible motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105071621A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107612199A (en) * | 2017-10-31 | 2018-01-19 | 天津昊野科技有限公司 | A kind of complete deep permagnetic synchronous motor in sea of built-in driving |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4506181A (en) * | 1984-03-02 | 1985-03-19 | General Electric Company | Permanent magnet rotor with complete amortisseur |
| CN1392654A (en) * | 2001-06-14 | 2003-01-22 | Lg电子株式会社 | Single phase directly start permanent magnetic synchronous moter |
| CN1937371A (en) * | 2006-10-16 | 2007-03-28 | 中山大学 | Alternating current permanent-magnet water-submersible electric machine |
| CN204947862U (en) * | 2015-08-21 | 2016-01-06 | 长沙迪沃机械科技有限公司 | A kind of permanent-magnet water-submersible electric machine of asynchronous starting |
-
2015
- 2015-08-21 CN CN201510518711.2A patent/CN105071621A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4506181A (en) * | 1984-03-02 | 1985-03-19 | General Electric Company | Permanent magnet rotor with complete amortisseur |
| CN1392654A (en) * | 2001-06-14 | 2003-01-22 | Lg电子株式会社 | Single phase directly start permanent magnetic synchronous moter |
| CN1937371A (en) * | 2006-10-16 | 2007-03-28 | 中山大学 | Alternating current permanent-magnet water-submersible electric machine |
| CN204947862U (en) * | 2015-08-21 | 2016-01-06 | 长沙迪沃机械科技有限公司 | A kind of permanent-magnet water-submersible electric machine of asynchronous starting |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107612199A (en) * | 2017-10-31 | 2018-01-19 | 天津昊野科技有限公司 | A kind of complete deep permagnetic synchronous motor in sea of built-in driving |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104883015B (en) | Bimorph transducer superconduction exciting field modulating motor | |
| US8536723B2 (en) | Integrated hydroelectric power-generating system and energy storage device | |
| WO2013112573A3 (en) | Power conversion and energy storage device | |
| US8461711B2 (en) | Counter rotation subsurface current generator | |
| CN101469662A (en) | Waterpipe generator | |
| JP2018040301A (en) | Wind and water power generation device | |
| CN204947862U (en) | A kind of permanent-magnet water-submersible electric machine of asynchronous starting | |
| CN105071621A (en) | Asynchronously-started permanent-magnet submersible motor | |
| CN105221438A (en) | Submersible motor and screw pump integrated device | |
| CN202228266U (en) | Wind collection type wind generating set | |
| CN201165940Y (en) | Permanent magnetism direct drive wind power generator | |
| CN204677358U (en) | A kind of novel overbottom pressure energy electricity generating device | |
| CN215370096U (en) | Portable small-sized pipeline micro water head power generation device | |
| CN105257460B (en) | Modularization misphase installs multiphase fault-tolerant structure ocean current power generation unit | |
| CN202100374U (en) | Hollow through-flow horizontal axis direct drive tidal power generating device | |
| CN210343573U (en) | Water flow power generation device | |
| CN203604113U (en) | Vertical axis wind turbine capable of being started by breezes efficiently and of coreless structure and generating set | |
| CN104632529A (en) | Vertical axis efficient hollow-core megawatt wind driven generator and generator set | |
| CN101429927A (en) | Permanent magnet direct-driving aerogenerator | |
| CN204089542U (en) | A kind of H250 sextupole harmonic excited generator | |
| CN203717374U (en) | High speed pump-in-pipe | |
| CN102882335B (en) | Axial magnetic flux permanent magnet induction wind-driven generator | |
| CN201165941Y (en) | Compound permanent magnetism direct drive wind power generator | |
| CN101440780A (en) | Composite permanent magnetism direct drive wind power generator | |
| CN201137553Y (en) | Wind power generator for road lamp illumination |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| 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: 20151118 |
|
| RJ01 | Rejection of invention patent application after publication |