CN209184454U - A kind of short magnetic circuit switch reluctance motor of low torque ripple - Google Patents
A kind of short magnetic circuit switch reluctance motor of low torque ripple Download PDFInfo
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- CN209184454U CN209184454U CN201822020384.XU CN201822020384U CN209184454U CN 209184454 U CN209184454 U CN 209184454U CN 201822020384 U CN201822020384 U CN 201822020384U CN 209184454 U CN209184454 U CN 209184454U
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Abstract
The utility model relates to switched reluctance machines fields to propose a kind of short magnetic circuit switch reluctance motor of low torque ripple to overcome the disadvantage that existing switched reluctance machines torque pulsation is big, core loss is high.The motor includes stator and rotor two parts；The stator includes stator core and winding, and the stator core has 16 stator tooths；The rotor includes 6 rotor tooth groups, and each rotor tooth group includes rotor tooth after 1 preceding rotor tooth and 1；The preceding rotor tooth and rear rotor tooth are equipped with pole shoe in the positive direction that rotor rotates, and are equipped with groove in the reverse direction of rotor rotation；In each rotor tooth group, a height of first yoke of yoke between preceding rotor tooth and rear rotor tooth is high；A height of second yoke of yoke between adjacent rotor tooth group is high, and first yoke is tall and big in the second yoke height.The motor can reduce torque pulsation from structure, reduce core loss, suitable for requiring motor to have the field of high stationarity and low-power consumption, such as artificial heart pump field.
Description
Technical field
The utility model relates to switched reluctance machines fields, more particularly to a kind of short Magnetic circuit switch magnetic of low torque ripple
Hinder motor.
Background technique
Switched reluctance machines because structure is simple, reliable operation, almost Maintenance free the advantages of, in the industry neck that environment is complicated
There is good applicability in domain；And switched reluctance machines have that detent torque is big, starting current is small, speed-regulating range width etc. is excellent
Point has critical role in the industrial production.
By the working principle of switched reluctance machines it is found that the torque generated on switch reluctance machine rotor is by a series of arteries and veins
Red switch square is formed by stacking, and due to the influence of double-salient-pole structure and magnetic circuit saturation nonlinearity, synthesizing torque is not one constant turn
Square, but have certain harmonic component, to generate torque pulsation, affect the runnability of motor；Currently, most of switches
Reluctance motor uses long magnetic circuit excitation, and the magnetic utilization rate of motor is low, core loss is big, and blocky rotor switched reluctance motor is using short
Magnetic circuit excitation, but its manufacturing cost is higher, torque pulsation also without be improved significantly.
Summary of the invention
The technical problem to be solved by the utility model is to overcoming, existing switched reluctance machines torque pulsation is big, iron core damage
High disadvantage is consumed, a kind of short magnetic circuit switch reluctance motor of low torque ripple is proposed, which reduces torque from structure
It pulses, reduce core loss, suitable for the field having higher requirements to motor operation stationarity and low-power consumption, such as artificial heart
The fields such as dirty pump.The motor includes stator and rotor two parts；The stator includes stator core and winding, the stator core
There are 16 stator tooths, the winding is wound on stator core；The rotor includes 6 rotor tooth groups, and each rotor tooth group includes 1
Rotor tooth after a preceding rotor tooth and 1.
The technical solution of the utility model is also: the winding has eight phases, including A phase, B phase, C phase, D phase, E phase, F phase, G
Mutually with H phase, spatially it is separated by 180 degree with phase winding；Two-phase is connected in the winding every time, and turn-on sequence is " A phase, B phase-D
Phase, E phase-G phase, H phase-B phase, C phase-E phase, F phase-H phase, A phase-C phase, D phase-F phase, G phase "；After winding is powered, generation is acted on
The electromagnetic torque of rotor tooth group, driving rotor rotate counterclockwise.
The technical solution of the utility model is also: after the winding is powered, the magnetic line of force of generation enters from stator core to be turned
Then the preceding rotor tooth of sub- tooth group returns to stator core from the rear rotor tooth of the rotor tooth group, in stator core and rotor tooth
Short magnetic circuit excitation is formed between group, to reduce core loss.
The technical solution of the utility model is also: the preceding rotor tooth and rear rotor tooth are equipped in the positive direction that rotor rotates
Pole shoe is equipped with groove in the reverse direction of rotor rotation；The pole shoe can be relieved edge flux effect, reduce magnetically saturated degree；
The groove can reduce the opposing torque generated when commutation, reduce torque pulsation.
The technical solution of the utility model is also: the yoke in each rotor tooth group, between preceding rotor tooth and rear rotor tooth
A height of first yoke is high；A height of second yoke of yoke between adjacent rotor tooth group is high, and first yoke is tall and big in the second yoke height, according to most
Small reluctance principle, the tall and big distribution situation that can improve the magnetic line of force when the second yoke is high of the first yoke reduce leakage field.
The advantageous effects of the utility model are: pole shoe reduces edge flux effect and magnetically saturated degree, enhancing
The reliability of motor；Groove can reduce opposing torque, reduce torque pulsation when commutation, while increase motor power output；The
One yoke is tall and big can to effectively reduce leakage field in the second yoke height, improve electric efficiency；Using short magnetic circuit excitation, iron core damage is reduced
Consumption.
Detailed description of the invention
Fig. 1 is the general structure schematic diagram of the utility model one embodiment.
Fig. 2 is the structural schematic diagram of one rotor tooth group of the utility model.
In figure: 1 is stator, and 2 be rotor, and 3 be stator core, and 4 be winding, and 5 be rotor tooth group, and 6 be preceding rotor tooth, and 7 are
Rotor tooth afterwards, 8 be pole shoe, and 9 be groove, and 10 is high for the first yoke, and 11 is high for the second yoke.
Specific embodiment
The utility model is made of stator 1 and 2 two parts of rotor；The stator 1 includes stator core 3 and winding 4, described
Stator core 3 has 16 stator tooths, and the winding 4 is wound on stator core 3, and the winding 4 shares eight phases, including A phase, B phase,
C phase, D phase, E phase, F phase, G phase and H phase are spatially separated by 180 degree with phase winding 4；The rotor 2 includes 6 rotor tooth groups
5, each rotor tooth group 5 includes rotor tooth 7 after 1 preceding rotor tooth 6 and 1；7 increment of the preceding rotor tooth 6 and rear rotor tooth
Front is equipped with pole shoe 8, and the rear of increment is equipped with groove 9；Yoke between the preceding rotor tooth 6 and rear rotor tooth 7 of each rotor tooth group 5
A height of first yoke is high by 10, and a height of second yoke of the yoke between adjacent rotor tooth group 5 is high by 11.
The preceding rotor tooth 6 and rear rotor tooth 7 are equipped with pole shoe 8 in the positive direction that rotor 2 rotates, and rotate in rotor 2 inverse
Direction is equipped with groove 9；The pole shoe 8 can be relieved edge flux effect, reduce magnetically saturated degree, improve peace when motor operation
Quan Xing；The groove 9 can reduce the opposing torque generated when commutation, reduce the torque pulsation of motor, when improving motor operation
Stationarity, while increasing motor power output.
A kind of short magnetic circuit switch reluctance motor working principle of low torque ripple: two-phase, step pitch is connected in the winding 4 every time
Angle is 7.5 degree, and the turn-on sequence of the winding 4 is " A phase, B phase-D phase, E phase-G phase, H phase-B phase, C phase-E phase, F phase-H phase, A
Phase-C phase, D phase-F phase, G phase "；The winding 4 can generate the magnetic line of force after being connected, and according to minimum reluctance principle, the magnetic line of force can be from calmly
Sub- iron core 3 enters the preceding rotor tooth 6 of rotor tooth group 5, since the height of the first yoke high 10 is high by 11 greater than the second yoke, again depending on most
Small reluctance principle is it is found that the magnetic line of force can return to stator core 3 from the rear rotor tooth 7 of the rotor tooth group 5, without passing through other
Stator core 3 is returned again to after rotor tooth group 5, to form short magnetic circuit excitation between stator core 3 and rotor tooth group 5, is generated
The electromagnetic torque of rotor tooth group 5 is acted on, driving rotor 2 rotates counterclockwise.
Claims (4)
1. a kind of short magnetic circuit switch reluctance motor of low torque ripple, it is characterised in that: including stator (1) and rotor (2) two
Point；The stator (1) includes stator core (3) and winding (4), and the stator core (3) has 16 stator tooths, the winding
(4) it is wound on stator core (3)；The rotor (2) includes 6 rotor tooth groups (5), and each rotor tooth group (5) includes 1 forward
Rotor tooth (7) after sub- tooth (6) and 1.
2. a kind of short magnetic circuit switch reluctance motor of low torque ripple according to claim 1, it is characterised in that: it is described around
Group (4) has eight phases, including A phase, B phase, C phase, D phase, E phase, F phase, G phase and H phase, and same phase winding (4) is spatially separated by 180
Degree；Two-phase is connected in the winding (4) every time, and turn-on sequence is " A phase, B phase-D phase, E phase-G phase, H phase-B phase, C phase-E phase, F
Phase-H phase, A phase-C phase, D phase-F phase, G phase " after the winding (4) is powered, generates the electromagnetism turn for acting on rotor tooth group (5)
Square, driving rotor (2) rotate counterclockwise.
3. a kind of short magnetic circuit switch reluctance motor of low torque ripple according to claim 1, it is characterised in that: before described
Rotor tooth (6) and rear rotor tooth (7) are equipped with pole shoe (8) in the positive direction that rotor (2) rotates, in the reverse direction of rotor (2) rotation
Equipped with groove (9).
4. a kind of short magnetic circuit switch reluctance motor of low torque ripple according to claim 1, it is characterised in that: each
In rotor tooth group (5), a height of first yoke of yoke between preceding rotor tooth (6) and rear rotor tooth (7) is high (10)；Adjacent rotor tooth group
(5) a height of second yoke of yoke between is high (11), and it is high (11) that first yoke high (10) is greater than the second yoke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822020384.XU CN209184454U (en) | 2018-12-04 | 2018-12-04 | A kind of short magnetic circuit switch reluctance motor of low torque ripple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822020384.XU CN209184454U (en) | 2018-12-04 | 2018-12-04 | A kind of short magnetic circuit switch reluctance motor of low torque ripple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209184454U true CN209184454U (en) | 2019-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822020384.XU Expired - Fee Related CN209184454U (en) | 2018-12-04 | 2018-12-04 | A kind of short magnetic circuit switch reluctance motor of low torque ripple |
Country Status (1)
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| CN (1) | CN209184454U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112688444A (en) * | 2020-12-11 | 2021-04-20 | 杭州星成电气科技有限公司 | Single-phase reluctance motor with self-starting capability |
| CN114389387A (en) * | 2022-01-14 | 2022-04-22 | 广东联柏科技集团有限公司 | Double-salient-pole stator and rotor structure |
-
2018
- 2018-12-04 CN CN201822020384.XU patent/CN209184454U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112688444A (en) * | 2020-12-11 | 2021-04-20 | 杭州星成电气科技有限公司 | Single-phase reluctance motor with self-starting capability |
| CN112688444B (en) * | 2020-12-11 | 2021-11-26 | 杭州星成电气科技有限公司 | Single-phase reluctance motor with self-starting capability |
| CN114389387A (en) * | 2022-01-14 | 2022-04-22 | 广东联柏科技集团有限公司 | Double-salient-pole stator and rotor structure |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190730 Termination date: 20201204 |
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| CF01 | Termination of patent right due to non-payment of annual fee |