CN201869064U - Double-stator single-rotor rare earth permanent magnet motor - Google Patents
Double-stator single-rotor rare earth permanent magnet motor Download PDFInfo
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- CN201869064U CN201869064U CN2010202999703U CN201020299970U CN201869064U CN 201869064 U CN201869064 U CN 201869064U CN 2010202999703 U CN2010202999703 U CN 2010202999703U CN 201020299970 U CN201020299970 U CN 201020299970U CN 201869064 U CN201869064 U CN 201869064U
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Abstract
The utility model relates to a double-stator single-rotor rare earth permanent magnet motor, in particular to a low-voltage high-power rare earth permanent magnet motor, belonging to the technical field of motors. The double-stator single-rotor rare earth permanent magnet motor comprises two stators and a rotor, wherein the rotor is positioned between the two stators, an armature winding is embedded into a coil assembling slot for a special stator iron core, a plurality of rare earth steel magnets are embedded in a rotor magnet conductive ring to provide a multi-pole magnetic field for the air gaps on the left and right sides simultaneously, and a starting winding and a damping winding are designed in the rotor. Each stator can drive the rotor to revolve; the two stators can be loaded simultaneously or respectively and can be unloaded respectively; the stators can be controlled by direct current or frequency modulation. The stators are fixed at two ends of a casing through a front end cover and a rear end cover; the rotor is sleeved on a shaft and connected through a key; a motor shaft can be driven to revolve to output the mechanical power when the rotor revolves. The double-stator single-rotor rare earth permanent magnet motor has the beneficial effects that the sectional area of an electrified lead and the sectional area of the coil assembling slot of the iron core are ensured, the temperature rise of the motor is controlled, the output power and the efficiency are improved, and the design problem of the low-voltage high-power motor is solved.
Description
Technical field
The present invention relates to technical field of motors, especially relate to a kind of low-voltage high-power rare-earth permanent magnet motor.
Background technology
High-power rare-earth permanent magnet motor, no matter be DC motor, still three-phase alternating-current motor if operational environment requirement operating voltage is lower, so high-powerly must cause big electric current, will bring very big difficulty to design of electrical motor.
For example the drive motors that adopts of electric automobile needs high-powerly, if take high voltage, then can realize little electric current, but high voltage, and the power storage battery piece number of will connecting is a lot, mates with safe in utilization for the storage battery parameter mutually and brings difficulty and inconvenience; If the low-voltage of taking, though power storage battery series connection piece number reduces, operating current must increase, and the winding enamelled wire will the heavy in section as current, and armature core line embedding groove cross section is also inevitable very big, is difficult to realize for the motor conventional design.
If take two stators to drive a rotor structure, so, winding conducting wire cross section and stator built-in line slot cross-section just can reduce half; This project of employing electric machine structure keeps under the constant substantially prerequisite of motor volume, and the low-voltage high-power rare-earth permanent-magnet electric machine just can be realized.Such design, the electrified wire sectional area is guaranteed, and electric machine temperature rise is controlled, and functional reliability increases, safe in utilization being guaranteed.
For this structure high power motor, the controller of no matter taking DC control to mate, still the frequency converter of taking frequency modulation control to mate, can be converted into the small-power design by high-power design, bring convenience for choosing of electronic devices and components, control system product functional reliability is guaranteed.
This project motor is particularly useful for driving motor for electric automobile, no matter manually control, and still automatic program control, can satisfy the running rule: car starting, or the speed-raising of overtaking other vehicles, or during the load-carrying upward slope, two stators load simultaneously, high-power operation; Smooth highway section underloading is travelled, and one of them stator can unload, and only allows a job; The non-stop run of one group of big capacity accumulator jar, be divided into now two groups independently-powered, can take turns discontinuous operation; Storage battery is safe in utilization and increase substantially use cost decline useful life.
Motor conventional design casing all has base, so that motor is installed; But the installation of drive motors on electric automobile be then because of vehicle difference, motor way of output difference, in the automobile chassis installation site in addition direction also different, so, the design base is with regard to the installation of inconvenient drive motors and fixing on casing; Therefore, drive motors adapts to the installation needs in different automobile types for convenience, and the present invention's outer end cap outer face design before and after motor has the column type location hole and the fixing screw hole of omnipotent installation.
Summary of the invention:
Two stators of a design of electrical motor drive a rotor; Rotor is positioned in the middle of two stators; The design of outer end cap outer face has the column type location hole and the fixing screw hole of omnipotent installation before and after the motor.Each stator can drive the rotor rotation; Two stators can load simultaneously, also can load respectively, can also unload respectively; Can DC control, also can frequency modulation control.
Under certain voltage, take hvdc control mode, be exactly a rareearth permanent-magnet DC brushless motor; Taking the frequency modulation control mode, is exactly a rare earth permanent magnet three-phase alternating current synchronous motor.By direct current voltage reulation, perhaps AC frequency modulation can be realized the motor speed adjusting.
Its benefit is, electrified wire cross section and iron core line embedding groove cross section are guaranteed, and electric machine temperature rise is controlled, and power output and efficient are improved, and have solved a low-voltage high-power design of electrical motor difficult problem.
Need when high-power two stators to work simultaneously, need small-power just allow a stator job; The controller of coupling, perhaps frequency modulator is from the high-power small-power that is converted into; The power storage battery is converted into low capacity from big capacity; Whole dynamical system prolongs useful life, and functional reliability improves, and use cost descends.
Concrete structure is
Two stators, a rotor; Rotor is positioned in the middle of two stators; Form two plane air-gaps between the stator and rotor;
Two stators are fixed on housing by outer end cap in the front and back; The design of outer end cap outer face has column type location hole and fixing screw hole before and after the motor; Rotor is through on the axle, connects by key, and the rotor rotation can drive motor shaft rotation, output mechanical power;
Stator winding is a three-phase symmetric winding, embeds in the special stator core wire embedding slots; Change coil-inserting method, or satisfy DC control, or satisfy AC frequency modulation control; The polylith rare earth magnetic steel is embedded in the rotor magnetic guiding loop; Inside and outside magnetic shield effectively cuts off radially leakage field of magnetic field; Inside and outside magnetic shield forms electric motor starting and damping winding with bare copper rod short circuit;
Embodiment:
The present invention includes: stator core, stator winding, rare earth magnetic steel, inside and outside magnetic shield, magnetic guiding loop, bare copper rod, casing, inside and outside end cap, motor shaft, seal, bearing, positioning sleeve, adjustment pad, securing member, parts such as winding lead-out wire;
The technical application scheme:
Stator comprises stator winding and stator core, and the winding lead-out wire etc.; Rotor comprises rare earth magnetic steel, magnetic guiding loop, inside and outside magnetic shield, bare copper rod etc.; Two stators are fixed on inner end cap, are fixed on the casing two ends by outer end cap; Motor shaft and rotor assembling connect by key;
Stator core and inner end cap assembling form core assembly; Embed stator winding and form stator module; Assembling forms end-cap assembly with outer end cap again; The rear end cap assembly is fixed on casing one end, and the rotor that will install axle is again packed into, adjusts the air gap of rotor side surface and back stator faces with positioning sleeve and adjustment pad; Refill and join the front end housing assembly, adjust rotor another side and preceding stator faces air gap with positioning sleeve, adjustment pad, the winding lead-out wire is drawn from the casing wire hole, fixes with securing member at last.
Beneficial effect of the present invention: electrified wire sectional area and iron core line embedding groove sectional area are guaranteed, and electric machine temperature rise is controlled, and power output and efficient are improved, and have solved a low-voltage high-power design of electrical motor difficult problem.
Description of drawings:
Below in conjunction with accompanying drawing the present invention is described in further detail: Fig. 1 is a complete machine structure schematic diagram of the present invention.
Among the figure: motor shaft (1), seal (2), bearing (3), preceding outer end cap (4), inner end cap (5), soket head cap screw (6), sunk screw (7), outer six side's screws (8), casing (9), interior magnetic shield (10), outer magnetic shield (11), rare earth magnetic steel (12), magnetic guiding loop (13), bare copper rod (14), stator core (15), stator winding (16), back outer end cap (17), positioning sleeve (18), key (19) is adjusted pad (20), lead-out wire 1 (21).
Embodiment:
As shown in Figure 1:
The design of the line embedding groove of stator core (15) is at end face, along circumference evenly radially radiation distribute, height and groove depth be axially, and be folded thick in radially; Grooved, groove number, highly, thickness and motor operating voltage, power output, working speed be complementary;
Is a rigid body with bare copper rod (14) with magnetic guiding loop (13) and interior magnetic shield (10), outer magnetic shield (11) riveted joint;
Several piece rare earth magnetic steel (12) is according to certain polarity, pastes or is built in the magnetic guiding loop (13), forms rotor (doing);
Stator core (15) is fixed on inner end cap (5) with soket head cap screw (6); Stator winding (16) is embedded stator core (15); Winding lead-out wire (21) is drawn in winding head, terminal doubling, welding, shaping, colligation, forms stator (doing two);
Motor shaft (1) is pressed into magnetic shield (10) endoporus in the rotor, and connects with key (19);
Seal (2) and bearing (3) are assemblied in the closed chamber and the bearing chamber of preceding outer end cap (4); With soket head cap screw (6) preceding outer end cap (4) and inner end cap (5) are fixed together, form the front end housing assembly; Bearing is assemblied in back outer end cap (17) bearing chamber, back outer end cap (17) and inner end cap (5) is fixed together, form the rear end cap assembly with soket head cap screw (6);
With the rear end cap assembly, by inner end cap (5) button and the assembling of casing (9) one ends, lead-out wire (21) is drawn from casing (9) wire hole, and is fixing with outer six side's screws (8); To put on the rotor of axle and be contained in the rear end cap assembled of housing (9) one ends, with positioning sleeve (18) and adjust pad (20) adjust side of rotor with after the air gap value of stator faces; Front end housing assembly and housing (9) other end, motor shaft (1) assembling, with the air gap value of positioning sleeve (18) and adjustment pad (20) adjustment rotor another side and preceding stator faces, lead-out wire (21) is drawn from another wire hole of casing (9); Then, with outer six side's screws (8) the front end housing assembly is fixed on casing (9).
Rotary electric machine axle (1), rotation is flexible and do not have catching phenomenon, and the high-power rare-earth permanent magnet motor assembling of two stator single rotors is finished.
Claims (8)
1. two stator single rotor rare-earth permanent magnet motor, mainly by casing, stator core, stator winding, inside and outside magnetic shield, magnetic guiding loop, bare copper rod, rare earth magnetic steel, interior outer end cap, motor shaft, bearing, seal, securing member, parts such as lead-out wire are formed; It is characterized in that: in the motor, two stators and a rotor are arranged; Rotor is positioned in the middle of two stators; Two stators and a rotor form two multipole air-gap fields of plane.
2. according to claim 1 pair of stator single rotor rare-earth permanent magnet motor is characterized in that motor has inside and outside two-layer end cap; Stator core is fixed on inner end cap, is fixed on casing by outer end cap; Bearing and seal are assemblied in outer end cap.
3. according to claim 1 pair of stator single rotor rare-earth permanent magnet motor, it is characterized in that: stator line embedding groove is opened at end face, along circumference evenly radially radiation distribute, height and groove depth be axially, and be folded thick in radially.
4. a kind of pair of stator single rotor rare-earth permanent magnet motor according to claim 1 is characterized in that stator winding is a three-phase symmetric winding, or satisfies DC control, or satisfies AC frequency modulation control.
5. a kind of pair of stator single rotor rare-earth permanent magnet motor according to claim 1 is characterized in that: rotor is by rare earth magnetic steel, magnetic guiding loop, and inside and outside magnetic shield, bare copper rod is formed.
6. a kind of pair of stator single rotor rare-earth permanent magnet motor according to claim 1 is characterized in that: the polylith rare earth magnetic steel is pasted or is built in magnetic guiding loop, provides multipole magnetic field simultaneously to the both sides air gap.
7. a kind of pair of stator single rotor rare-earth permanent magnet motor according to claim 1 is characterized in that: magnetic guiding loop is riveted into a rigid body with inside and outside magnetic shield with bare copper rod; Inside and outside magnetic shield constitutes electric motor starting and damping winding with bare copper rod short circuit.
8. a kind of pair of stator single rotor rare-earth permanent magnet motor according to claim 1 is characterized in that: the design of outer end cap outer face has omnipotent installing and locating hole and screw hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202999703U CN201869064U (en) | 2010-08-17 | 2010-08-17 | Double-stator single-rotor rare earth permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202999703U CN201869064U (en) | 2010-08-17 | 2010-08-17 | Double-stator single-rotor rare earth permanent magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201869064U true CN201869064U (en) | 2011-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202999703U Expired - Fee Related CN201869064U (en) | 2010-08-17 | 2010-08-17 | Double-stator single-rotor rare earth permanent magnet motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN201869064U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377300A (en) * | 2010-08-17 | 2012-03-14 | 杨中兴 | Double-stator single-rotor rare earth permanent magnet motor |
| CN102684443A (en) * | 2012-05-18 | 2012-09-19 | 山耐斯气动液压(磐安)有限公司 | Dual-power disc type DC brushless motor |
| WO2016001495A2 (en) | 2014-07-04 | 2016-01-07 | Whylot Sas | Radial-flux electromagnetic motor comprising multiple air gaps and a rotor surrounded by two stators, with reduced cogging torque |
| TWI554007B (en) * | 2015-12-31 | 2016-10-11 | With inside and outside of the hollow rotor of motor delineated DC sub-structure |
-
2010
- 2010-08-17 CN CN2010202999703U patent/CN201869064U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377300A (en) * | 2010-08-17 | 2012-03-14 | 杨中兴 | Double-stator single-rotor rare earth permanent magnet motor |
| CN102684443A (en) * | 2012-05-18 | 2012-09-19 | 山耐斯气动液压(磐安)有限公司 | Dual-power disc type DC brushless motor |
| WO2016001495A2 (en) | 2014-07-04 | 2016-01-07 | Whylot Sas | Radial-flux electromagnetic motor comprising multiple air gaps and a rotor surrounded by two stators, with reduced cogging torque |
| TWI554007B (en) * | 2015-12-31 | 2016-10-11 | With inside and outside of the hollow rotor of motor delineated DC sub-structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20110615 Termination date: 20130817 |