CN209072186U - A kind of level-one efficiency flame-proof type asynchronous starting three-phase permanent-magnetic synchronous motors - Google Patents
A kind of level-one efficiency flame-proof type asynchronous starting three-phase permanent-magnetic synchronous motors Download PDFInfo
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- CN209072186U CN209072186U CN201822143792.4U CN201822143792U CN209072186U CN 209072186 U CN209072186 U CN 209072186U CN 201822143792 U CN201822143792 U CN 201822143792U CN 209072186 U CN209072186 U CN 209072186U
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Abstract
A kind of level-one efficiency flame-proof type asynchronous starting three-phase permanent-magnetic synchronous motors, including flameproof enclosure, stator module and the shaft for being equipped with permanent magnet rotor component, stator module is fixed in flameproof enclosure, and stator module includes stator core and stator coil, permanent magnet rotor component includes rotor core, boot cage item, magnet steel and nonmagnetic magnet steel pressing plate；Rotor core is coaxially stacked by rotor punching and forms and be fixed in shaft, the magnetic slot that rotor punching is equipped with several boot cage mounting grooves and is distributed in W type.The flame-proof type asynchronous starting three-phase permanent-magnetic synchronous motors, pass through built-in magnetic line structure, magnetic slot is distributed in W type, have the advantages that tandem rotor structure and parallel rotor structure simultaneously, the magnet steel that can be installed on rotor assembly is more than series and parallel type magnetic structure, unloaded magnetic leakage factor is small, improves the globality and mechanical strength of rotor assembly, is suitable for bad working environments locating for explosion-proof motor.
Description
Technical field
The utility model relates to a kind of flame-proof type permanent-magnetic motor, in particular to a kind of level-one efficiency flame-proof type asynchronous starting three
Phase permasyn morot.
Background technique
Energy-saving and emission-reduction are the topics that the world today can not avoid, and affect the development of world economy.Electric system is made
For the emphasis of energy-saving and emission-reduction in industrial circle, energy-saving potential is very huge.Flame-Proof Three-Phase Induction Motors are widely used in stone
The industries such as oil, chemical industry, coal, equipment are mostly long-term continuous operations, and power consumption is huge.The main reason for power consumption is big first is that
Flame-Proof Three-Phase Induction Motors low efficiency itself, power factor are low, and efficiency and power factor are lower when the operation of low-load rate.
The efficiency for all having made middle-size and small-size motor in succession to the energy law of each advanced country, this world limits mandatory standard, China
Also efficiency limit standard has been formulated.
Asynchronous starting three-phase permanent-magnetic synchronous motors both have compared with threephase asynchronous in three-phase main-frequency alternating current
The ability voluntarily started under source, and have the advantages that be more suitably applied to wide loading range internal efficiency is high, power factor is high
Some pairs of power conservation requirements are relatively high, such as using the occasion of blower, compressor and oil-field oil pumper.Therefore, petroleum, chemical industry,
The industries such as coal promote energy-efficient flame-proof type asynchronous starting three-phase permanent-magnetic synchronous motors substitution explosion-proof three-phase asynchronous electricity
The serious status of the industries waste of energy such as current China's oil, chemical industry or coal can be changed in motivation, is one and benefits the nation and the people, have compared with
The motor industrial upgrading activity of high social benefit.The direction for meeting national " energy conservation and environmental protection ", before having a wide range of applications
Scape.
Utility model content
The purpose of this utility model is in view of the above shortcomings of the prior art, to provide that a kind of level-one efficiency flame-proof type is asynchronous to be opened
Dynamic three-phase permanent-magnetic synchronous motors, meet the requirement of level-one efficiency.
In order to solve the above technical problems, the technical solution adopted in the utility model is:
The level-one efficiency flame-proof type asynchronous starting three-phase permanent-magnetic synchronous motors, including flameproof enclosure, stator module and peace
Shaft equipped with permanent magnet rotor component, stator module are fixed in flameproof enclosure, and stator module includes stator core and stator
Coil, the permanent magnet rotor component include rotor core, boot cage item, magnet steel and nonmagnetic magnet steel pressing plate；
Rotor core is coaxially stacked by rotor punching and forms and be fixed in shaft, and rotor punching is equipped with several startings
Cage mounting groove and the magnetic slot being distributed in W type, magnetic slot are located at the radially inner side of boot cage mounting groove, and magnet steel is disposed in phase
In the magnetic slot answered, the corresponding both ends for being disposed in rotor core of magnet steel pressing plate are simultaneously solid by the stretching screw through rotor core
It is fixed；Boot cage item correspondence is disposed in boot cage mounting groove, and boot cage mounting groove is radially distributed in the close of rotor punching
On outer circumferential end face, and the groove profile of boot cage mounting groove is convex flat-bottom slot.
The adjacent boot cage mounting groove is that not etc. the facewidth are not laid.
The magnetic slot in the distribution of W type includes several radial slots and is folded to slot, and radial slot is radially distributed, is folded to slot
It is distributed between adjacent radial slot, and encloses W type groove with adjacent radial slot.
The radial slot sets there are four and radially spaced is uniformly distributed.
Radially there are gaps between the radial slot and boot cage mounting groove, and referred to as magnetic bridge, the length of magnetic bridge
For 1.5 ~ 2.5mm.
It is additionally provided with cooling fan and fan housing outside the flameproof enclosure, and the flabellum angle of cooling fan is not set up separately not etc.
It sets, fan housing is corresponding to cooling fan to be arranged.
The stator core is made of cold rolled silicon steel sheet material 50W350, and the stator coil uses low harmonic winding knot
Structure.
The magnet steel uses permanent-magnet material.
The magnet steel uses permanent-magnet material N35SH.
The beneficial effects of the utility model are:
1) magnetic slot is in W type by built-in magnetic line structure by the flame-proof type asynchronous starting three-phase permanent-magnetic synchronous motors
Distribution, while having the advantages that tandem rotor structure and parallel rotor structure, the magnet steel ratio that can be installed on rotor assembly
Series and parallel type magnetic structure is more, and unloaded magnetic leakage factor is small, improves the globality and mechanical strength of rotor assembly, is suitble to
Bad working environments locating for explosion-proof motor.
2) the flabellum angle of cooling fan is arranged using not equal part, and selects the fan housing being mutually arranged with cooling fan, reduces
Draft loss reduces ventilation noise.
3) power density is high, small in size, light-weight, compared with YB3 series Flame-Proof Three-Phase Induction Motors, identical base
Effective material used in number is less.
4) high efficiency has higher efficiency, together compared with same size YB3 series Flame-Proof Three-Phase Induction Motors
When economical operation range it is wide, energy conservation and consumption reduction effects are significant；Power factor is high, can reduce the consumption of quadergy.
5) explosion separation structure improves, and protective performance is good, and complete machine has IP66 degree of protection, highly-safe.
Detailed description of the invention
Fig. 1 is the general assembly structural schematic diagram of the utility model；
Fig. 2 is the assembling schematic diagram of shaft and rotor assembly；
Fig. 3 is the structural schematic diagram of rotor assembly；
Fig. 4 is the structural schematic diagram of rotor punching；
Fig. 5 is the structural schematic diagram of cooling fan.
Specific embodiment
The embodiments of the present invention is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the utility model easily.
The utility model provides a kind of level-one efficiency flame-proof type asynchronous starting three-phase permanent-magnetic synchronous motors, extremely such as Fig. 1
Shown in Fig. 5.The level-one efficiency flame-proof type asynchronous starting three-phase permanent-magnetic synchronous motors, including flameproof enclosure 2,24 and of stator module
The shaft 1 of permanent magnet rotor component 14 is installed, stator module 24 is fixed in flameproof enclosure 2, and stator module 24 includes stator
Iron core 241 and stator coil 242, in the present embodiment, the stator core 241 is made of cold rolled silicon steel sheet material 50W350,
The stator coil 242 uses low harmonic winding structure.
The permanent magnet rotor component 14 includes rotor core, boot cage item 142, magnet steel 143 and nonmagnetic magnet steel pressure
Plate 144；Rotor core is coaxially stacked by rotor punching 141 and forms and be fixed in shaft 1, and rotor punching 141 is equipped with several
A boot cage mounting groove 1411 and the magnetic slot being distributed in W type, the diameter that magnetic slot is located at boot cage mounting groove 1411 are inside
Side, magnet steel 143 are disposed in corresponding magnetic slot, and magnet steel pressing plate 144 corresponds to the both ends for being disposed in rotor core and by passing through
The stretching screw 145 for wearing rotor core is fixed；The correspondence of boot cage item 142 is disposed in boot cage mounting groove 1411, boot cage
Mounting groove 1411 is radially distributed on the nearly outer circumferential end face of rotor punching 141, and the slot of boot cage mounting groove 1411
Type is convex flat-bottom slot, enhances skin-effect and reaches effectively every magnetic, and boot cage item 142 uses cast aluminium formula.Preferably, described
Magnet steel 143 uses permanent-magnet material N35SH.
In the present embodiment, in order to weaken the torque of boot cage item 142, the adjacent boot cage mounting groove 1411 is not
Etc. the facewidth lay, i.e., width A, B between adjacent boot cage mounting groove 1411 are different, as shown in figure 4, reduce cogging torque,
Reduce torque pulsation, and then keep its torque steady, while placing magnet steel 143 to provide enough space setting magnetic slots, opens
Dynamic 1411 height of cage mounting groove is smaller.
The magnetic slot in the distribution of W type includes several radial slots 1413 and is folded to slot 1412, and radial slot 1413 is along diameter
It to distribution, is folded to slot 1412 and is distributed between adjacent radial slot 1413, and enclose W type groove with adjacent radial slot 1413；
Preferably, the radial slot 1413 is equipped with several, and concrete foundation motor pole number is formulated, in the present embodiment, the radial slot
1413 set there are four and it is radially spaced be uniformly distributed, and between radial slot 1413 and boot cage mounting groove 1411 radially there are
Gap, and referred to as magnetic bridge, as shown in arrow h in Fig. 4, the length of magnetic bridge is 1.5 ~ 2.5mm, improves magnetism isolating effect.It should be in W
The magnetic slot of type distribution, it has the advantages that tandem rotor structure and parallel rotor structure simultaneously, can be on rotor punching
The magnet steel of installation is more than series and parallel type magnetic structure, and unloaded magnetic leakage factor is small.
It when assembly, is inserted into the magnetic slot of rotor punching after magnet steel 143 is coated epoxy resin, then with from dry asphalt mixtures modified by epoxy resin
The vacant place of magnetic slot is filled up in rouge encapsulating, and magnet steel 143 is firmly secured to inside rotor punching 141, meanwhile, encapsulated epoxy resin
Be conducive to magnet steel heat dissipation, prevent hot-spot from generating demagnetization；And the both ends of rotor core are pressed with nonmagnetic magnet steel pressing plate 144
It covers and stretching screw 145 is used to tense, magnet steel 143 is thrown away when preventing from running at high speed, and further enhances the reliability of rotor assembly.
In the magnetic structure selection of the level-one efficiency flame-proof type asynchronous starting three-phase permanent-magnetic synchronous motors of the utility model
Formula is set, magnet steel is installed in the rotor core between boot cage item 142 and shaft 1, and axis inductor is greater than d-axis inductance, the magnetic
Reluctance torque caused by the asymmetry of line structure helps to improve the overload capacity and power density of motor, and this is built-in
Formula magnetic structure is simple and reliable, improves the globality and mechanical strength of rotor assembly, is suitable for evil locating for explosion-proof motor
Bad operating condition.
Cooling fan 4 and fan housing 5 are additionally provided with outside the flameproof enclosure, and the flabellum angle of cooling fan 4 is used and differed
Set up separately and set, as shown in figure 5, and selecting the fan housing 5 being mutually arranged with cooling fan, reduction draft loss, reduction ventilation noise, this reality
After novel use new construction cooling fan 4 and fan housing 5, draft loss reduces 10-20%, and noise reduces 3-5dB (A).Separately
Outside, the flameproof enclosure of the motor is explosion-proof, has enough intensity requirements, is suitable for petroleum, chemical industry or coal etc. containing inflammable
The hazardous area of explosion hazard gases or coal dust, and base 23 is to be effectively reduced with the heat radiation type structure for increasing cooling surface area
Motor temperature rise, and complete machine blast resistance construction is connected using seam allowance, so that complete machine is had IP66 high-protection level, and efficiency average value compares mesh
The efficiency of the preceding widely used YB3 Flame-Proof Three-Phase Induction Motors series in the country averagely about improves 3.1%, meets level-one efficiency
Requirement.
The words such as " first ", " second " have been used in this patent come if limiting components, those skilled in the art should
Know: the use of " first ", " second " is intended merely to facilitate description the utility model and simplifies description, and above-mentioned word is not
Special meaning.
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, the utility model can also on the premise of not departing from the spirit and scope of the utility model
There are various changes and modifications, these changes and improvements are both fallen within the scope of claimed utility model.The requires of the utility model
Protection scope is defined by appended claims and equivalent.
In the description of the present invention, it should be understood that term "front", "rear", "left", "right", "center", etc. refer to
The orientation or positional relationship shown is to be based on the orientation or positional relationship shown in the drawings, and is only the utility model and letter for ease of description
Change description, rather than indicate or imply signified device or element must have a particular orientation, for specific orientation construction and
Operation, thus should not be understood as the limitation that content is protected to the utility model.
Claims (9)
1. a kind of level-one efficiency flame-proof type asynchronous starting three-phase permanent-magnetic synchronous motors, including flameproof enclosure, stator module and peace
Shaft equipped with permanent magnet rotor component, stator module are fixed in flameproof enclosure, and stator module includes stator core and stator
Coil, it is characterised in that: the permanent magnet rotor component includes rotor core, boot cage item, magnet steel and nonmagnetic magnet steel pressure
Plate；
Rotor core is coaxially stacked by rotor punching and forms and be fixed in shaft, and rotor punching is equipped with several boot cage items
Mounting groove and the magnetic slot being distributed in W type, magnetic slot are located at the radially inner side of boot cage mounting groove, and magnet steel is disposed in accordingly
In magnetic slot, the corresponding both ends for being disposed in rotor core of magnet steel pressing plate are simultaneously fixed by the stretching screw through rotor core；
Boot cage item correspondence is disposed in boot cage mounting groove, the radially distributed nearly outer circle in rotor punching of boot cage mounting groove
On all end faces, and the groove profile of boot cage mounting groove is convex flat-bottom slot.
2. a kind of level-one efficiency flame-proof type asynchronous starting three-phase permanent-magnetic synchronous motors according to claim 1, feature
Be: the adjacent boot cage mounting groove is that not etc. the facewidth are not laid.
3. a kind of level-one efficiency flame-proof type asynchronous starting three-phase permanent-magnetic synchronous motors according to claim 1, feature
Be: the magnetic slot in the distribution of W type includes several radial slots and is folded to slot, and radial slot is radially distributed, is folded to slot point
It is distributed between adjacent radial slot, and encloses W type groove with adjacent radial slot.
4. a kind of level-one efficiency flame-proof type asynchronous starting three-phase permanent-magnetic synchronous motors according to claim 3, feature
Be: the radial slot sets there are four and radially spaced is uniformly distributed.
5. a kind of level-one efficiency flame-proof type asynchronous starting three-phase permanent-magnetic synchronous motors according to claim 3, feature
Be: radially there are gaps between the radial slot and boot cage mounting groove, and referred to as magnetic bridge, and the length of magnetic bridge is
1.5~2.5mm。
6. a kind of level-one efficiency flame-proof type asynchronous starting three-phase permanent according to any one of claims 1 to 5 synchronizes electronic
Machine, it is characterised in that: cooling fan and fan housing are additionally provided with outside the flameproof enclosure, and the flabellum angle of cooling fan is
Set up separately and set, fan housing is corresponding to cooling fan to be arranged.
7. a kind of level-one efficiency flame-proof type asynchronous starting three-phase permanent according to any one of claims 1 to 5 synchronizes electronic
Machine, it is characterised in that: the stator core is made of cold rolled silicon steel sheet material 50W350, and the stator coil uses low harmony wave
Winding construction.
8. a kind of level-one efficiency flame-proof type asynchronous starting three-phase permanent-magnetic synchronous motors according to claim 6, feature
Be: the magnet steel uses permanent-magnet material.
9. a kind of level-one efficiency flame-proof type asynchronous starting three-phase permanent-magnetic synchronous motors according to claim 7, feature
Be: the magnet steel uses permanent-magnet material N35SH.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822143792.4U CN209072186U (en) | 2018-12-20 | 2018-12-20 | A kind of level-one efficiency flame-proof type asynchronous starting three-phase permanent-magnetic synchronous motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822143792.4U CN209072186U (en) | 2018-12-20 | 2018-12-20 | A kind of level-one efficiency flame-proof type asynchronous starting three-phase permanent-magnetic synchronous motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209072186U true CN209072186U (en) | 2019-07-05 |
Family
ID=67101851
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822143792.4U Active CN209072186U (en) | 2018-12-20 | 2018-12-20 | A kind of level-one efficiency flame-proof type asynchronous starting three-phase permanent-magnetic synchronous motors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209072186U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109639000A (en) * | 2018-12-20 | 2019-04-16 | 卧龙电气南阳防爆集团股份有限公司 | A kind of 1 grade of efficiency flame-proof type asynchronous starting three-phase permanent-magnetic synchronous motors |
| EP4220899A4 (en) * | 2021-01-08 | 2024-04-17 | Aisin Corp | Rotor core |
-
2018
- 2018-12-20 CN CN201822143792.4U patent/CN209072186U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109639000A (en) * | 2018-12-20 | 2019-04-16 | 卧龙电气南阳防爆集团股份有限公司 | A kind of 1 grade of efficiency flame-proof type asynchronous starting three-phase permanent-magnetic synchronous motors |
| WO2020125206A1 (en) * | 2018-12-20 | 2020-06-25 | 卧龙电气南阳防爆集团股份有限公司 | First-level energy-efficient flameproof asynchronous-starting three-phase permanent magnet synchronous electric motor |
| EP4220899A4 (en) * | 2021-01-08 | 2024-04-17 | Aisin Corp | Rotor core |
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