CN108964309A - High pressure increased safety frequency conversion permanent magnet synchronous motor - Google Patents
High pressure increased safety frequency conversion permanent magnet synchronous motor Download PDFInfo
- Publication number
- CN108964309A CN108964309A CN201810756212.0A CN201810756212A CN108964309A CN 108964309 A CN108964309 A CN 108964309A CN 201810756212 A CN201810756212 A CN 201810756212A CN 108964309 A CN108964309 A CN 108964309A
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- rotor
- frequency conversion
- increased safety
- high pressure
- 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
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
-
- 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
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
-
- 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
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/30—Windings characterised by the insulating material
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a kind of high pressure increased safety frequency conversion permanent magnet synchronous motors, including stator, rotor, end shield；The rotor includes axis, the rotor field spider being sheathed on axis, the pole core being assemblied on rotor field spider, the permanent magnet being axially arranged in pole core, the rotor bar panelling is in pole core and both ends are connected with end ring, end ring is set to conducting bar end, the pole core both ends are equipped with the magnetic pole baffle of the fixed permanent magnet of axis, the permanent magnet both ends, which contact, magnetic pole baffle, the magnetic pole baffle is connected in the end on pole core and being pressed on permanent magnet by bolt, and pass through the self-locking washer fastening of butterfly, the stator includes base, stator core, winding, the winding uses epoxy resin encapsulated, compared with conventional synchronization machine, increased safety frequency conversion permanent magnet motor uses permanent magnet excitation, eliminate electrical excitation system, reduce production cost and maintenance cost, reduce plant maintenance workload.
Description
Technical field
The present invention relates to a kind of synchronous motor, concretely relate to a kind of high pressure increased safety frequency conversion permanent magnet synchronize it is electronic
Machine.
Background technique
Currently, industry tradition increased safety synchronous motor needs to install electrical excitation winding and matched excitation unit, structure are multiple
Miscellaneous, volume is big, greatly limits the flexibility of electric machine structure；Power supply need to be provided to electrical excitation winding simultaneously, accordingly need to increase
Add exciter, demagnetization winding, rotary rectifier system etc..Electrical excitation system control component be mostly it is nonmetallic, spoilage is high, needs
Maintenance and Repair are periodically carried out, heavy workload maintenance cost is high, carries out shutting down when necessary and open and inspect, production line is caused to stop.And
Frequency conversion permanent magnet synchronous motor of the present invention is not required to electrical excitation device, hardly needs maintenance within the phase in permanent magnet longevity, therefore, the present invention
Motor has structure simple, small in size, and operational reliability is high, effectively reduces the advantages that maintenance cost extends maintenance period.
Be provided simultaneously with the high efficiency of magneto, High Power Factor (low-load rate state still possess higher efficiency and power because
Number), the features such as power density is high.Based on the above-mentioned numerous advantages of permanent magnet synchronous motor, especially in current national ' energy-saving and emission-reduction '
Under overall background, application prospect is extremely wide.Its application range can substantially cover at present using motor all spectra: including
Locomotive traction, vehicle traction, wind-driven generator, air-conditioning, oil drilling, exploitation, chemical industry, nuclear power and current synchronous motor apply institute
There is occasion etc..
Summary of the invention
The object of the present invention is to provide a kind of high pressure increased safety frequency conversion permanent magnet synchronous motor,.
In order to solve the above technical problems, the object of the present invention is achieved like this:
A kind of high pressure increased safety frequency conversion permanent magnet synchronous motor, including stator, rotor, end shield；
The rotor includes axis, the rotor field spider being sheathed on axis, the pole core being assemblied on rotor field spider, is axially arranged in
Permanent magnet, the rotor bar panelling in pole core are in pole core and both ends are connected with end ring, and end ring is set to conducting bar
End, the pole core both ends are equipped with the magnetic pole baffle of the fixed permanent magnet of axis, and the permanent magnet both ends, which contact, to be had
Magnetic pole baffle, the magnetic pole baffle is connected in the end on pole core and being pressed on permanent magnet by bolt, and passes through butterfly
Self-locking washer fastening, may be implemented easily and efficiently to install permanent magnet, guarantee that part will not loosen in rotor high-speed rotation
And it falls off；
The stator includes base, stator core, winding, and the winding uses epoxy resin encapsulated, according to high pressure increased safety electricity
The particularity of machine Inverter fed motor uses epoxy sealing technique, and purpose is to eliminate end glow discharge, avoids bloom phenomenon, passes through
The technique, which has succeeded, solves this problem.
Motor uses permanent magnet excitation, does not need excitation winding, demagnetization winding, rotary rectifier system, can be significant
Increase power factor (up to 1, even capacitive), reduces stator current and stator resistance loss, and do not have in stable operation
There is rotor loss, and then fan can be reduced because total losses reduce.
Preferred embodiment on the basis of above scheme and as above scheme: the rotor field spider is using whole carbon steel casting
It makes.
Preferred embodiment on the basis of above scheme and as above scheme: offering T-slot on the rotor field spider,
The gap wedging wedge block of fin of the pole core with the embeddable T-slot, T-slot and fin keeps the two affixed, this
Pole core and rotor field spider turn distribution structure make it is easy to assembly quickly, while reliability is mentioned significantly compared to being bolted after assembling
It is high.
Preferred embodiment on the basis of above scheme and as above scheme: between having between the adjacent pole core
Every the interval is enclosed wide-mouth shape structure by the side wall of adjacent pole iron core, is equipped with trapezoidal briquetting in the interval, bolt passes through
It is tightened in rotor field spider after trapezoidal briquetting, so that trapezoidal two waist of briquetting is squeezed the side wall of two pole cores, make pole core
Secondary positioning is directly carried out, its stability and reliability are further increased.
Preferred embodiment on the basis of above scheme and as above scheme: the permanent magnet, which uses, radially or tangentially pacifies
Dress.
Preferred embodiment on the basis of above scheme and as above scheme: the end shield is provided at least one observation
Window, convenient for the operating condition inside observation motor.
Preferred embodiment on the basis of above scheme and as above scheme: the pole core is rushed by what multi-disc stacked
Tabletting and the more compressing pull rods for passing through stamping form, and the compressing pull rod both ends and the stamping of pole core outermost are welded
It connects, guarantees that rotor core stacking factor will not change in production to complete machine operation life cycle management.
Preferred embodiment on the basis of above scheme and as above scheme: axis is using whole carbon steel or alloy steel forging
It makes.
The present invention is prominent and beneficial compared with prior art to have the technical effect that the increased safety frequency conversion compared with conventional synchronization machine
Permanent magnet motor uses permanent magnet excitation, eliminates electrical excitation system, reduces production cost and maintenance cost, reduces factory
Upkeep operation amount.Increased safety frequency conversion permanent magnet motor high-efficiency high-power-factor simultaneously, it is more energy saving.Motor of the invention
Design is rationally advanced, compact-sized, easy for operation, improves driving equipment reliability and stability.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is overall structure left view of the invention；
Fig. 3 is rotor axial view of the present invention；
Fig. 4 is rotor cross-sectional view；
Fig. 5 is stator structure schematic diagram.
1 bearing, 2 measuring temperature of bearing terminal box, 3 stator, 4 rotor, 41 permanent magnet, 42 pole core, 421 fin
422 compressing pull rod, 423 permanent magnet mounting groove, 424 rotor bar slot, 43 magnetic pole baffle, 431 bolt, 44 rotor bar 441
6 bearing of end ring 45 rotor field spider, 451 T-slot, 46 axis, 5 main power source terminal box, 7 positive draft protects system 8 to see
Examine 13 heater connection box of window 9 end shield, 10 cooler, 11 stator temperature measuring junction box, 12 nameplate, 14 pedestal.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with the attached drawing in embodiment, to reality
The technical solution applied in example is clearly and completely described,
A kind of high pressure increased safety frequency conversion permanent magnet synchronous motor is mainly connect by bearing 1 and bearing 6, stator 3, rotor 4, main power source
System 7, end shield 9, cooler 10, pedestal 14, measuring temperature of bearing terminal box 2, stator temperature measuring junction box are protected in wire box 5, positive draft
11, heater connection box 13 forms；
Preferably, end shield 9 is provided at least one observation window 8, is preferably 4 in the present embodiment.
Rotor 4 includes axis 46, the rotor field spider 45 being sheathed on axis 46, the pole core being assemblied on rotor field spider 45
42, the axial permanent magnet 41 being arranged in pole core 42,44 panelling of rotor bar pole core 42 rotor bar slot 424
Interior and both ends are connected with end ring 441, and rotor bar 44 is embedded into 44 inward at both ends pressure of rotor bar after rotor bar slot 424,
It is 44 cross-sectional deformation of rotor bar and increases, so that tensioner, in rotor bar slot 424, end ring 441 is placed in rotor bar 44
Both ends, and guarantee to weld it is firm；
Preferably, rotor bar 44 is brass material, and end ring 441 is forge copper material.
Specifically, rotor field spider 45 is pressed into axis 46, pole core 42 is assembled after indentation, offers T on rotor field spider 45
Shape slot 451, pole core 42 have the fin 421 of the embeddable T-slot 451, the gap wedging of T-slot 451 and fin 421
Wedge block 47 keeps the two affixed；
In addition, having interval between the adjacent pole core 42, the side wall of adjacent pole iron core 42 encloses at the interval extensively
Mouthful shape structure is equipped with trapezoidal briquetting 48 in the interval, and bolt is tightened in rotor field spider 45 after passing through trapezoidal briquetting 48, makes ladder
48 liang of waists of shape briquetting squeeze the side wall of two pole cores 42.
Preferably, rotor field spider 45 can root using whole carbon steel or steel alloy forging using whole cast carbon steel, axis 46
Determine that flange shaft is stretched or key axis is stretched according to user.
In the present embodiment, there is permanent magnet mounting groove 423 on pole core 42, permanent magnet 41 is embedded in the permanent magnet mounting groove
In 423,42 both ends of pole core are equipped with the magnetic pole baffle 43 of the fixed permanent magnet 41 of axis, and 41 both ends of permanent magnet, which contact, to be had
Magnetic pole baffle 43, magnetic pole baffle 43 are connected on pole core 42 by bolt 431 and are pressed on the end of permanent magnet 41；
The stamping and the more compressing pull rods 422 for passing through stamping that pole core 42 is stacked by multi-disc form, compressing pull rod
422 both ends and 42 outermost stamping of pole core are welded.
It should be noted that needing to apply enough pressures in the stamping of stacking when stamping carries out stack assembly
After power reaches the stacking factor of requirement, then practical compressing pull rod 422 penetrates into the stamping of heap poststack and is welded
It connects.
Preferably, magnetic pole baffle 43 and bolt 431 are Stainless steel 316 L material, and Stainless steel 316 L has non-magnetic spy
Property, and machining accuracy is high, thermal expansion coefficient is low.
It should be noted that it is radial or tangentially mounted to determine that permanent magnet 41 uses according to user's torque parameter, and permanent magnetism
Magnet is preferably Nd-Fe-B rare earth permanent magnetic material.
Further, stator 3 includes base 31, stator core 33, winding 34, and the winding 34 is filled using epoxy resin
Envelope.
In the present embodiment, encapsulating uses vacuum encapsulation technology, guarantees bubble-free after encapsulating.
Above-described embodiment is only presently preferred embodiments of the present invention, is not limited the scope of the invention according to this, therefore: it is all according to
The equivalence changes that structure of the invention, shape, principle are done, should all be covered by within protection scope of the present invention.
Claims (8)
1. a kind of high pressure increased safety frequency conversion permanent magnet synchronous motor, including stator (3), rotor (4), end shield (9)；
The rotor (4) includes axis (4-6), the rotor field spider (4-5) being sheathed on axis (4-6), is assemblied in rotor field spider (4-5)
On pole core (4-2), axial permanent magnet (4-1), the rotor bar (4-4) being arranged in pole core (4-2) it is embedding
Tightly in the pole core (4-2) and both ends are connected with end ring (441), the pole core both ends (4-2) are equipped with the fixed institute of axis
The magnetic pole baffle (4-3) of permanent magnet (4-1) is stated, permanent magnet (41) both ends, which contact, magnetic pole baffle (43), the magnetic pole
Baffle (43) is connected on pole core (42) by bolt and is pressed on the end of permanent magnet (41)；
The stator (3) includes base (3-1), stator core (3-3), winding (3-4), and the winding (3-4) uses asphalt mixtures modified by epoxy resin
Rouge encapsulating.
2. a kind of high pressure increased safety frequency conversion permanent magnet synchronous motor according to claim 1, it is characterised in that: the rotor
Bracket (4-5) is using whole cast carbon steel.
3. a kind of high pressure increased safety frequency conversion permanent magnet synchronous motor according to claim 1, it is characterised in that: the rotor
It is offered on bracket (45) T-slot (451), pole core (42) has the fin (421) of the embeddable T-slot (451), T
The gap of shape slot (451) and fin (421) wedging wedge block (47) keeps the two affixed.
4. a kind of high pressure increased safety frequency conversion permanent magnet synchronous motor according to claim 1, it is characterised in that: adjacent described
There is interval, which is enclosed wide-mouth shape structure by the side wall of adjacent pole iron core (42), between being somebody's turn to do between pole core (42)
It is equipped with trapezoidal briquetting (48) every interior, bolt is tightened in rotor field spider (45) after passing through trapezoidal briquetting (48), makes trapezoidal briquetting
(48) two waists squeeze the side wall of two pole cores (42).
5. a kind of high pressure increased safety frequency conversion permanent magnet synchronous motor according to claim 1, it is characterised in that: the permanent magnetism
Body (4-1) is used and is radially or tangentially installed.
6. a kind of high pressure increased safety frequency conversion permanent magnet synchronous motor according to claim 1, it is characterised in that: the end shield
(9) it is provided at least one observation window (8).
7. a kind of high pressure increased safety frequency conversion permanent magnet synchronous motor according to claim 1, it is characterised in that: the magnetic pole
The stamping and the more compressing pull rods (422) for passing through stamping that iron core (4-2) is stacked by multi-disc form, the compressing pull rod
(422) both ends and pole core (4-2) outermost stamping are welded.
8. a kind of high pressure increased safety frequency conversion permanent magnet synchronous motor according to claim 1, it is characterised in that: axis (46) is adopted
It is forged with whole carbon steel or steel alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810756212.0A CN108964309A (en) | 2018-07-11 | 2018-07-11 | High pressure increased safety frequency conversion permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810756212.0A CN108964309A (en) | 2018-07-11 | 2018-07-11 | High pressure increased safety frequency conversion permanent magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108964309A true CN108964309A (en) | 2018-12-07 |
Family
ID=64482833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810756212.0A Pending CN108964309A (en) | 2018-07-11 | 2018-07-11 | High pressure increased safety frequency conversion permanent magnet synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108964309A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112821685A (en) * | 2021-02-23 | 2021-05-18 | 江西江特电机有限公司 | Design method for saving axial space of motor |
| CN113726037A (en) * | 2021-08-30 | 2021-11-30 | 大连日牵电机有限公司 | High-speed permanent magnet motor for hybrid power pack of rail car |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003189518A (en) * | 2001-10-11 | 2003-07-04 | Techno Takatsuki Co Ltd | Squirrel-cage rotor and synchronous inductive motor employing the same |
| CN204012985U (en) * | 2014-08-26 | 2014-12-10 | 湘潭电机股份有限公司 | A kind of permanent magnet machine rotor |
| CN105429388A (en) * | 2015-12-29 | 2016-03-23 | 卧龙电气南阳防爆集团股份有限公司 | High-capacity increased safety synchronous motor magnetic pole installation method and matching device thereof |
| CN106059232A (en) * | 2016-03-21 | 2016-10-26 | 宋艺宁 | Permanent magnet motor for automobile |
| CN206850542U (en) * | 2017-03-31 | 2018-01-05 | 精基科技有限公司 | A kind of compressor dedicated three-phase permanent-magnet synchronous variable-frequency electric motor rotor structure |
-
2018
- 2018-07-11 CN CN201810756212.0A patent/CN108964309A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003189518A (en) * | 2001-10-11 | 2003-07-04 | Techno Takatsuki Co Ltd | Squirrel-cage rotor and synchronous inductive motor employing the same |
| CN204012985U (en) * | 2014-08-26 | 2014-12-10 | 湘潭电机股份有限公司 | A kind of permanent magnet machine rotor |
| CN105429388A (en) * | 2015-12-29 | 2016-03-23 | 卧龙电气南阳防爆集团股份有限公司 | High-capacity increased safety synchronous motor magnetic pole installation method and matching device thereof |
| CN106059232A (en) * | 2016-03-21 | 2016-10-26 | 宋艺宁 | Permanent magnet motor for automobile |
| CN206850542U (en) * | 2017-03-31 | 2018-01-05 | 精基科技有限公司 | A kind of compressor dedicated three-phase permanent-magnet synchronous variable-frequency electric motor rotor structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112821685A (en) * | 2021-02-23 | 2021-05-18 | 江西江特电机有限公司 | Design method for saving axial space of motor |
| CN113726037A (en) * | 2021-08-30 | 2021-11-30 | 大连日牵电机有限公司 | High-speed permanent magnet motor for hybrid power pack of rail car |
| CN113726037B (en) * | 2021-08-30 | 2023-08-01 | 大连日牵电机有限公司 | High-speed permanent magnet motor for railcar hybrid power pack |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102204070B (en) | Permanently excited synchronous machine | |
| Fengxiang et al. | Design considerations of high-speed PM generators for micro turbines | |
| CN108964309A (en) | High pressure increased safety frequency conversion permanent magnet synchronous motor | |
| CN102412640A (en) | Offshore type superconducting wind power generator | |
| CN101860100B (en) | Permanent magnetic synchronous motor | |
| CN201414061Y (en) | Novel permanent magnet synchronous motor | |
| CN110676998A (en) | Dual-rotor motor structure | |
| CN201994808U (en) | Explosion suppression type explosion-proof generator | |
| CN207053272U (en) | Three-phase permanent-magnetic synchronous motors surface-mounted rotor structure | |
| CN107508440B (en) | A kind of axial direction multiple-unit stator electrical excitation bipolarity inductor machine | |
| CN2826811Y (en) | Highly effective super-low speed wind-power generator | |
| CN202334249U (en) | Novel radial magnetic field induction-type asynchronous permanent-magnet coupler | |
| CN201113716Y (en) | Large-capacity synchronizing generator brushless exciter | |
| CN101873029A (en) | Coreless permanent magnet diesel generator | |
| CN110224562A (en) | A kind of energy-saving motor with the multi-direction three-dimensional flux path of axial-radial | |
| CN113541431A (en) | Permanent magnet synchronous motor capable of replacing speed reducer | |
| CN204168096U (en) | A kind of novel 13.8kV60Hz full rotating speed brushless excitation vapour sends out machine | |
| CN202334039U (en) | Offshore type superconductive wind driven generator | |
| CN212543474U (en) | Cylindrical single-air-gap inner rotor motor | |
| CN206775304U (en) | A kind of split type dismountable motor shaft structure | |
| CN201252456Y (en) | Flame-proof type permanent-magnetic industrial frequency generator | |
| CN202374070U (en) | Rotor structure for novel permanent magnet pilot exciter | |
| CN102487236B (en) | Rotor of permanent magnet synchronous motor | |
| CN220122661U (en) | Permanent magnet synchronous motor rotor structure | |
| CN204231101U (en) | A kind of external rotor generator without bearing |
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: 20181207 |