CN213213295U - Double-air-gap permanent magnet auxiliary synchronous reluctance motor - Google Patents
Double-air-gap permanent magnet auxiliary synchronous reluctance motor Download PDFInfo
- Publication number
- CN213213295U CN213213295U CN202021426886.3U CN202021426886U CN213213295U CN 213213295 U CN213213295 U CN 213213295U CN 202021426886 U CN202021426886 U CN 202021426886U CN 213213295 U CN213213295 U CN 213213295U
- Authority
- CN
- China
- Prior art keywords
- rotor
- stator
- layer
- permanent magnet
- synchronous reluctance
- 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.)
- Active
Links
Images
Abstract
The utility model provides a synchronous reluctance machine is assisted to two air gaps permanent magnetism belongs to the synchronous reluctance machine technical field is assisted to the permanent magnetism. The utility model discloses be provided with stainless steel magnetism separation cover in the middle of well rotor skin and the rotor inlayer, the outer coaxial cover in outside of rotor has outer stator, and the inboard coaxial cover in rotor inlayer has the inner stator, and rotor skin and rotor inlayer all are provided with the permanent magnet, the rotor skin is provided with the three-layer groove, and two-layer in the outer three-layer groove of rotor is provided with the permanent magnet, and the rotor inlayer is provided with two-layer groove, and the two-layer groove in rotor inlayer all is provided with the permanent magnet, is provided with first work air gap between outer stator and the rotor, is provided with second work air gap between rotor. The utility model discloses can effectively improve the torque density of this motor, improve power factor, reduce the exciting current of motor, torque density is big, and power factor is high, and it is less to be applicable to the space, and the higher motor of torque output uses the place.
Description
Technical Field
The utility model relates to a synchronous reluctance machine is assisted to two air gaps permanent magnetism belongs to the synchronous reluctance machine technical field is assisted to the permanent magnetism.
Background
The problems of low torque density, low power factor and the like of a synchronous reluctance motor in the prior art,
the double-air-gap permanent magnet auxiliary synchronous reluctance motor consists of five parts, namely an inner stator, an outer stator, ferrite, a stainless steel magnetism isolating sleeve and a rotor punching sheet. The motor utilizes the minimum principle of magnetic resistance to output torque, and the current problems are as follows: 1. the output torque density is low; 2. the power factor is low.
The utility model discloses can effectively improve the torque density of this motor, improve power factor, through using inside and outside two stators, make full use of motor inner space increases the output torque of motor to improve the power factor of motor through the permanent magnet is supplementary, reduce motor current, improve torque density, reduce and generate heat.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that above-mentioned prior art exists, and then provide a synchronous reluctance motor is assisted to two air gaps permanent magnetism.
The utility model aims at realizing through the following technical scheme:
a dual air gap permanent magnet assisted synchronous reluctance machine comprising: the outer stator, the rotor and the inner stator are coaxially arranged;
the rotor comprises a rotor outer layer and a rotor inner layer, a stainless steel magnetism isolating sleeve is arranged between the rotor outer layer and the rotor inner layer, an outer stator is coaxially sleeved on the outer side of the rotor outer layer, an inner stator is coaxially sleeved on the inner side of the rotor inner layer, the inner stator comprises an inner stator core and an inner stator winding embedded in an inner stator core groove, the outer stator comprises an outer stator core and an outer stator winding embedded in an outer stator core groove, permanent magnets are arranged on the rotor outer layer and the rotor inner layer, the rotor outer layer is provided with three layers of grooves, two layers of permanent magnets are arranged in the three layers of grooves on the rotor outer layer, two layers of grooves on the rotor inner layer are provided with permanent magnets, a first working air gap is arranged between the outer stator and the rotor, and a second working air gap is arranged between the rotor and the inner stator.
The permanent magnet is a ferrite permanent magnet.
The permanent magnet is a tile-shaped permanent magnet.
The outer stator and the inner stator are respectively controlled by two sets of frequency conversion systems.
And permanent magnets are arranged in two layers of the three layers of slots on the outer layer of the rotor, which are far away from the outer stator.
The utility model has the advantages that:
the utility model discloses an inside and outside two stators of use, make full use of motor inner space increases the output torque of motor to improve the power factor of motor through the permanent magnet is supplementary, reduce the motor current, improve torque density, reduce and generate heat.
The utility model provides a present synchronous reluctance motor have torque density low, the low scheduling problem of power factor, can effectively improve the torque density of this motor, improve power factor, and torque density is big, and power factor is high, is applicable to the space less, and the higher motor of torque output uses the place.
The utility model discloses synchronous reluctance motor is assisted to two air gap permanent magnetism can effectively increase synchronous reluctance motor's output torque, improves synchronous reluctance motor's power density, has higher power factor simultaneously, effectively reduces the electric current of motor.
The utility model discloses the utilization of well ferrite permanent magnet can reduce the exciting current of motor, improves power factor, and the motor uses the minimum principle of magnetic resistance, and the difference that the motor is expected to guarantee magnetic circuit quadrature axis and direct axis inductance is big more to the motor towards the piece in the design process of motor, and the permanent magnet is towards the piece in order to adapt to the motor, so chooses tile type permanent magnet, and the number of piles of motor is more better, but because the limited inner rotor in space is only two-layer, then can set up more numbers of piles if the space allows.
Drawings
Fig. 1 is a schematic structural diagram of the dual-air-gap permanent magnet auxiliary synchronous reluctance motor of the present invention.
Fig. 2 is the utility model discloses a motor magnetic flux distribution schematic diagram of synchronous reluctance machine is assisted to two air gaps permanent magnetism.
In the figure, reference numeral 1 is an outer stator, 2 is a rotor outer layer, 3 is a stainless steel magnetism isolating sleeve, 4 is a rotor inner layer, 5 is an inner stator, and 6 is a permanent magnet.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings: the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation is given, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1 and fig. 2, the double air gap permanent magnet assisted synchronous reluctance machine according to the present embodiment includes: the outer stator 1, the rotor and the inner stator 5 are coaxially arranged;
wherein, the rotor comprises a rotor outer layer 2 and a rotor inner layer 4, a stainless steel magnetism-isolating sleeve 3 is arranged between the rotor outer layer 2 and the rotor inner layer 4, an outer stator 1 is coaxially sleeved outside the rotor outer layer 2, an inner stator 5 is coaxially sleeved inside the rotor inner layer 4, the inner stator 5 comprises an inner stator iron core and an inner stator winding embedded in an inner stator iron core groove, the outer stator 1 comprises an outer stator iron core and an outer stator winding embedded in an outer stator iron core groove, both the rotor outer layer 2 and the rotor inner layer 4 are provided with permanent magnets 6, the outer layer 2 of the rotor is provided with three layers of grooves, two layers of the three layers of grooves of the outer layer 2 of the rotor are provided with permanent magnets 6, the inner layer 4 of the rotor is provided with two layers of grooves, the two layers of grooves of the inner layer 4 of the rotor are provided with the permanent magnets 6, a first working air gap is arranged between the outer stator 1 and the rotor, and a second working air gap is arranged between the rotor and the inner stator 5.
The permanent magnet 6 is a ferrite permanent magnet.
The permanent magnet 6 is a tile-shaped permanent magnet.
The outer stator 1 and the inner stator 5 are respectively controlled by two sets of frequency conversion systems.
And permanent magnets 6 are arranged in two layers of the three layers of slots of the rotor outer layer 2 far away from the outer stator 1.
Example 1
According to the minimum reluctance principle, the synchronous reluctance motor can stably output torque by the rotor on the premise that current and a power angle meet certain conditions.
As shown in fig. 1, the outer stator 1, the rotor and the inner stator 5 are coaxially installed; the outer stator 1 and the inner stator 5 are respectively controlled by two sets of frequency conversion systems, the output power of the inner stator and the output power of the outer stator can be respectively adjusted through adjusting the power angle, and meanwhile, the motor has certain fault tolerance, and can work with reduced power if the inner stator and the outer stator are damaged by insulation.
The rotor comprises a rotor outer layer 2 and a rotor inner layer 4, a stainless steel magnetism-isolating sleeve 3 is arranged between the rotor outer layer 2 and the rotor inner layer 4, an outer stator 1 is coaxially sleeved outside the rotor outer layer 2, an inner stator 5 is coaxially sleeved inside the rotor inner layer 4, the inner stator 5 comprises an inner stator iron core and an inner stator winding embedded in an inner stator iron core groove, the outer stator 1 comprises an outer stator iron core and an outer stator winding embedded in an outer stator iron core groove,
outer 2 and the rotor inlayer 4 of rotor all are provided with permanent magnet 6, outer 2 of rotor is provided with the three-layer groove, and two-layer in the outer 2 three-layer groove of rotor is provided with permanent magnet 6, and permanent magnet 6 is tile type ferrite permanent magnet, and rotor inlayer 4 is provided with two-layer groove, and the two-layer groove of rotor inlayer 4 all is provided with permanent magnet 6, is provided with first working air gap between outer stator 1 and the rotor, is provided with second working air gap between rotor and the inner stator 5. The magnetic flux distribution of the motor is shown in fig. 2, and the utilization of the ferrite permanent magnet can reduce the excitation current of the motor and improve the power factor. In the three layers of grooves of the rotor outer layer 2, two layers of permanent magnets are arranged, one layer of permanent magnets is not arranged, the permanent magnets 6 are not arranged in the outermost layer of grooves, and the grooves are small in size, so that the performance of placing the permanent magnets is not greatly improved, and the permanent magnets 6 are not placed.
According to the magnetic force lines, the magnetic field direction of the motor can be seen, the permanent magnet is not mainly coupled with the magnetic field of the stator, and the permanent magnet plays an auxiliary role, so that the magnetic force lines pass through the permanent magnet, the magnetic potential in the magnetic circuit of the motor can be improved, the magnetizing current is reduced, and the power factor of the motor is improved;
the motor in this embodiment adopts the principle of minimum magnetic resistance, the mutual coupling of the magnetic fields of the stator and the rotor is used to generate electromagnetic force in the prior art, and the present embodiment utilizes the magnetic lines of force to always pass through the path with minimum magnetic resistance to be closed, when the rotor position is not at the minimum position, the electromagnetic force is generated to move the rotor to the minimum position, and finally the motor rotates.
Due to the principle, the rotor of the motor has no magnetic field, and no magnetic field interaction exists in the motor, so that the magnetizing current of the motor is generated by the stator, and the power factor of the motor is lower. Therefore, the permanent magnets are added on the rotor to help the motor to establish a magnetic field, reduce magnetizing current and improve power factor.
The permanent magnet 6 in this embodiment is made of ferrite, which is a permanent magnet with poor performance, but is cheap and easily available, so that other permanent magnets besides ferrite can be used.
The above description is only the preferred embodiments of the present invention, and these embodiments are all based on the present invention, and the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. The utility model provides a synchronous reluctance motor is assisted to two air gaps permanent magnetism, its characterized in that includes: the outer stator (1), the rotor and the inner stator (5) are coaxially arranged;
wherein, the rotor comprises a rotor outer layer (2) and a rotor inner layer (4), a stainless steel magnetism isolating sleeve (3) is arranged between the rotor outer layer (2) and the rotor inner layer (4), an outer stator (1) is coaxially sleeved outside the rotor outer layer (2), an inner stator (5) is coaxially sleeved inside the rotor inner layer (4), the inner stator (5) comprises an inner stator iron core and an inner stator winding embedded in an inner stator iron core groove, the outer stator (1) comprises an outer stator iron core and an outer stator winding embedded in the outer stator iron core groove, the rotor outer layer (2) and the rotor inner layer (4) are both provided with permanent magnets (6), the rotor outer layer (2) is provided with three layers of grooves, two layers of the three layers of the rotor outer layer (2) are provided with the permanent magnets (6), the rotor inner layer (4) is provided with two layers of grooves, and the two layers of the rotor inner layer (4) are both provided with the permanent magnets (6), a first working air gap is arranged between the outer stator (1) and the rotor, and a second working air gap is arranged between the rotor and the inner stator (5).
2. A double air gap permanent magnet assisted synchronous reluctance machine according to claim 1, characterized in that said permanent magnets (6) are ferrite permanent magnets.
3. A double-air-gap permanent-magnet-assisted synchronous reluctance machine according to claim 1, characterized in that said permanent magnets (6) are tile-type permanent magnets.
4. A double-air-gap permanent-magnet-assisted synchronous reluctance machine according to claim 1, wherein said outer stator (1) and inner stator (5) are controlled by two sets of frequency conversion systems, respectively.
5. A double air gap permanent magnet assisted synchronous reluctance machine according to claim 1, characterized in that two of the three layers of slots of the rotor outer layer (2) far from the outer stator (1) are provided with permanent magnets (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021426886.3U CN213213295U (en) | 2020-07-20 | 2020-07-20 | Double-air-gap permanent magnet auxiliary synchronous reluctance motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021426886.3U CN213213295U (en) | 2020-07-20 | 2020-07-20 | Double-air-gap permanent magnet auxiliary synchronous reluctance motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213213295U true CN213213295U (en) | 2021-05-14 |
Family
ID=75834044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021426886.3U Active CN213213295U (en) | 2020-07-20 | 2020-07-20 | Double-air-gap permanent magnet auxiliary synchronous reluctance motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213213295U (en) |
-
2020
- 2020-07-20 CN CN202021426886.3U patent/CN213213295U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102306995B (en) | Permanent magnet biased bearingless switched reluctance motor | |
| CN109347288B (en) | Electric automobile modularization stator-rotor motor | |
| CN108631459B (en) | High-power high-reliability six-phase permanent magnet fault-tolerant hub motor for electric armored vehicle | |
| CN102868266B (en) | High-reliability permanent-magnet synchronous motor based on redundancy and fault-tolerant technology | |
| CN103490532B (en) | A kind of error-tolerance type stator partition type Magneticflux-switching type memory electrical machine | |
| CN111082560B (en) | Motor rotor and motor | |
| CN104410234A (en) | Spindle synchronous motor with wide speed regulation range for lathe | |
| CN101577449A (en) | Magnetic flux switching type transverse magnetic flux permanent magnetism wind mill generator | |
| CN109245468B (en) | Birotor synchronous motor adopting permanent magnet auxiliary cage barrier rotor | |
| CN104967275A (en) | Double-salient-pole permanent magnet linear motor and motor module group using same | |
| CN104052180A (en) | Multiple symmetrical winding magnetic flux switching motor and winding design method thereof | |
| CN111786523A (en) | Double-air-gap permanent magnet auxiliary synchronous reluctance motor | |
| CN110838779B (en) | Mixed excitation wound rotor and mixed excitation wound synchronous motor | |
| CN202334229U (en) | Stator surface-mounted-type doubly salient permanent magnet motor with complementary winding magnetic circuits | |
| CN110601481A (en) | Birotor permanent magnet synchronous reluctance motor and configuration method | |
| CN107425629B (en) | Permanent magnet motor rotor | |
| CN114123581A (en) | Self-starting permanent magnet auxiliary synchronous reluctance motor rotor and motor | |
| CN210350986U (en) | Birotor permanent magnet synchronous reluctance motor | |
| CN211830364U (en) | Synchronous motor with permanent magnet reluctance hybrid rotor structure | |
| CN102403857A (en) | Stator surface-mounted doubly salient permanent-magnet motor with complementary winding magnetic paths | |
| CN102611219A (en) | High-reliability half stator-tooth winded stator-surface mounted permanent magnet motor | |
| CN213213295U (en) | Double-air-gap permanent magnet auxiliary synchronous reluctance motor | |
| CN114094738B (en) | Self-starting permanent magnet auxiliary synchronous reluctance motor rotor and motor | |
| CN109167502B (en) | Permanent magnet auxiliary cage barrier rotor synchronous motor | |
| CN103795203B (en) | A kind of novel two-part seven phase fault tolerant permanent magnet motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |