CN204947862U - A kind of permanent-magnet water-submersible electric machine of asynchronous starting - Google Patents
A kind of permanent-magnet water-submersible electric machine of asynchronous starting Download PDFInfo
- Publication number
- CN204947862U CN204947862U CN201520636021.2U CN201520636021U CN204947862U CN 204947862 U CN204947862 U CN 204947862U CN 201520636021 U CN201520636021 U CN 201520636021U CN 204947862 U CN204947862 U CN 204947862U
- Authority
- CN
- China
- Prior art keywords
- permanent
- magnet
- electric machine
- coil
- submersible electric
- 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.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model relates to motor apparatus technical field, particularly relates to a kind of permanent-magnet water-submersible electric machine of asynchronous starting.The stator coil of the permanent-magnet water-submersible electric machine of this asynchronous starting 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.
Description
Technical field
The utility model relates to motor apparatus technical field, particularly relates 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.
Utility model content
(1) technical problem that will solve
The technical problems to be solved in the utility model 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 utility model 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, and 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 utility model has following beneficial effect: the stator coil of the permanent-magnet water-submersible electric machine of asynchronous starting of the present utility model 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 utility model embodiment;
Fig. 2 is the front view of the rotor mechanism of the utility model embodiment;
Fig. 3 is the end view of the rotor mechanism of the utility model embodiment.
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, execution mode of the present utility model is described in further detail.Following examples for illustration of the utility model, but can not be used for limiting scope of the present utility model.
In description of the present utility model, 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 utility model and simplified characterization for convenience of description, instead of the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
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.
Embodiment of the present utility model provides for the purpose of example and description, and is not exhaustively or by the utility model be limited 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 utility model and practical application are better described, and enables those of ordinary skill in the art understand the utility model 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 permanent-magnet water-submersible electric machine of asynchronous starting 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 7, 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 |
|---|---|---|---|
| CN201520636021.2U CN204947862U (en) | 2015-08-21 | 2015-08-21 | A kind of permanent-magnet water-submersible electric machine of asynchronous starting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520636021.2U CN204947862U (en) | 2015-08-21 | 2015-08-21 | A kind of permanent-magnet water-submersible electric machine of asynchronous starting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204947862U true CN204947862U (en) | 2016-01-06 |
Family
ID=55015251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520636021.2U Expired - Fee Related CN204947862U (en) | 2015-08-21 | 2015-08-21 | A kind of permanent-magnet water-submersible electric machine of asynchronous starting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204947862U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105071621A (en) * | 2015-08-21 | 2015-11-18 | 长沙迪沃机械科技有限公司 | Asynchronously-started permanent-magnet submersible motor |
| WO2020143621A1 (en) * | 2019-01-11 | 2020-07-16 | 青蛙泵业有限公司 | Mechatronics high-speed asynchronous submersible electric pump |
-
2015
- 2015-08-21 CN CN201520636021.2U patent/CN204947862U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105071621A (en) * | 2015-08-21 | 2015-11-18 | 长沙迪沃机械科技有限公司 | Asynchronously-started permanent-magnet submersible motor |
| WO2020143621A1 (en) * | 2019-01-11 | 2020-07-16 | 青蛙泵业有限公司 | Mechatronics high-speed asynchronous submersible electric pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8461711B2 (en) | Counter rotation subsurface current generator | |
| CN204947862U (en) | A kind of permanent-magnet water-submersible electric machine of asynchronous starting | |
| JP2018040301A (en) | Wind and water power generation device | |
| CN202055980U (en) | Module combine type vertical axle tide-energy direct drive type power generation device | |
| CN206776518U (en) | A kind of Ecological Fish Culture field | |
| CN202228266U (en) | Wind collection type wind generating set | |
| CN204126815U (en) | Bilobed wheel coreless wind driven generator | |
| CN104158377B (en) | A kind of stormy waves switch reluctance generator system being applied to offshore platform | |
| CN105071621A (en) | Asynchronously-started permanent-magnet submersible motor | |
| CN201165940Y (en) | Permanent magnetism direct drive wind power generator | |
| 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 | |
| CN210396958U (en) | Semi-direct-drive radial composite dual-port permanent magnet synchronous wind driven generator | |
| CN104632529A (en) | Vertical axis efficient hollow-core megawatt wind driven generator and generator set | |
| CN203717374U (en) | High speed pump-in-pipe | |
| CN101429927A (en) | Permanent magnet direct-driving aerogenerator | |
| CN203538129U (en) | Efficient and energy-saving water-surface impeller-type aerator | |
| CN212928046U (en) | Floating waterwheel for power generation | |
| CN201165941Y (en) | Compound permanent magnetism direct drive wind power generator | |
| CN2934642Y (en) | Horizontal wind power generator with sail | |
| CN201137553Y (en) | Wind power generator for road lamp illumination | |
| CN204877980U (en) | Energy -saving portable flood control pump of speedily carrying out rescue work |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160106 Termination date: 20180821 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |