CN201994824U - High-torque permanent magnet transmission - Google Patents
High-torque permanent magnet transmission Download PDFInfo
- Publication number
- CN201994824U CN201994824U CN2011200575212U CN201120057521U CN201994824U CN 201994824 U CN201994824 U CN 201994824U CN 2011200575212 U CN2011200575212 U CN 2011200575212U CN 201120057521 U CN201120057521 U CN 201120057521U CN 201994824 U CN201994824 U CN 201994824U
- Authority
- CN
- China
- Prior art keywords
- speed rotor
- permanent magnet
- high speed
- low speed
- iron block
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
A high-torque permanent magnet transmission belongs to the technical field of transmissions and solves the problem of stability in low-speed operation of a permanent magnet transmission. The high-torque permanent magnet transmission comprises a high-speed rotor component, a low-speed rotor component and magnetic regulating iron blocks, and the relationship among the drive ratio Gr of the permanent magnet transmission, the number ph of pole pairs of the high-speed rotor component, the number pl of pole pairs of the low-speed rotor component and the number ns of the magnetic regulating iron blocks is Gr=-pl/ph and ns=pl+ph. The high-torque permanent magnet transmission is used as a transmission.
Description
Technical field
The utility model relates to a kind of speed changer of torque permanent magnet energetically, belongs to the speed changer technical field.
Background technology
Permanent-magnet variable-speed device and permanent magnetism compound gear are two kinds of transmission devices of structural similarity, and its design parameter is similar.In recent years, research to the permanent magnetism compound gear is more and more, but lay particular emphasis on magnetic field calculation and simple model machine application more, concerning torque permanent magnet gear energetically, its application mainly concentrates in the low-speed and large-torque transmission, and the stationarity of this application during to the stationarity in the running especially low cruise has special requirement.
In magneto, the principal element that influences the low cruise stationarity is location torque and fluctuation moment, the permanent-magnet variable-speed device is not owing to there is electric excitation, the principal element of its low cruise stationarity is exactly a location torque, existing permanent-magnet variable-speed device does not structurally provide how to design and can make it can obtain minimum location torque, stationarity when satisfying its low cruise, and be informed under the minimum location torque parameter designing influence to gear ratio.
The utility model content
The utility model is in order to solve the stationarity problem of permanent-magnet variable-speed device when the low cruise, a kind of speed changer of torque permanent magnet energetically to be provided.
The utility model comprises high speed rotor assembly, low speed rotor assembly and adjustable magnetic iron block, the gearratio G of described permanent-magnet variable-speed device
rNumber of pole-pairs p with the high speed rotor assembly
h, the low speed rotor assembly number of pole-pairs p
l, the adjustable magnetic iron block piece count n
sBetween the pass be:
n
s=p
l+ p
h
The magnetic pole logarithm p of described high speed rotor permanent magnet
hEqual 4, the magnetic pole logarithm p of low speed rotor permanent magnet
lEqual 26, the piece of adjustable magnetic iron block is counted n
sEqual 30.
The magnetic pole logarithm p of described high speed rotor permanent magnet
hEqual 5, the magnetic pole logarithm p of low speed rotor permanent magnet
lEqual 30, n
sEqual 35.
The magnetic pole logarithm p of described high speed rotor permanent magnet
hEqual 6, the magnetic pole logarithm p of low speed rotor permanent magnet
lEqual 27, the piece of adjustable magnetic iron block is counted n
sEqual 33.
The magnetic pole logarithm p of described high speed rotor permanent magnet
hEqual 7, the magnetic pole logarithm p of low speed rotor permanent magnet
lEqual 28, the piece of adjustable magnetic iron block is counted n
sEqual 35.
The magnetic pole logarithm p of described high speed rotor permanent magnet
hEqual 8, the magnetic pole logarithm p of low speed rotor permanent magnet
lEqual 28, the piece of adjustable magnetic iron block is counted n
sEqual 36.
The described speed changer of torque permanent magnet energetically is the permanent-magnet variable-speed device of mixed magnetic circuit structure, its high speed rotor assembly is identical with the external diameter of low speed rotor assembly, and coaxial setting, has the gap between high speed rotor assembly and the low speed rotor assembly, distance between two outer faces of high speed rotor assembly and low speed rotor assembly is L
The adjustable magnetic iron block is that length is the strip iron block of L, n
sPiece adjustable magnetic iron block evenly distributes along the outer round surface side of high speed rotor assembly, and n
sOne end of piece adjustable magnetic iron block aligns with the outer face of high speed rotor assembly, described n
sHave air gap between the outer round surface of piece adjustable magnetic iron block and high speed rotor assembly,
The high speed rotor assembly is made up of high speed rotor yoke and a plurality of high speed rotor permanent magnet, and a plurality of high speed rotor permanent magnets are along the circumferential direction evenly closely arranged and are fixed on the outer round surface of high speed rotor yoke, and the polarity of adjacent high speed rotor permanent magnet is opposite,
The low speed rotor assembly is made up of low speed rotor yoke and a plurality of low speed rotor permanent magnet, and a plurality of low speed rotor permanent magnets are along the circumferential direction evenly closely arranged and are fixed on the outer round surface of low speed rotor yoke, and the polarity of adjacent low speed rotor permanent magnet is opposite,
The outer round surface of high speed rotor assembly is the formed outer round surface of a plurality of high speed rotor permanent magnets, and the outer round surface of low speed rotor assembly is the formed outer round surface of a plurality of low speed rotor permanent magnets.
The described speed changer of torque permanent magnet energetically is the permanent-magnet variable-speed device of axial magnetic circuit structure, its high speed rotor assembly and low speed rotor assembly are respectively in the axial two ends of adjustable magnetic iron block, and in axial direction be followed successively by high speed rotor yoke, high speed rotor permanent magnet, adjustable magnetic iron block, low speed rotor permanent magnet and low speed rotor yoke, form air gap respectively between high speed rotor permanent magnet and the adjustable magnetic iron block and between adjustable magnetic iron block and the low speed rotor permanent magnet.
The described speed changer of torque permanent magnet energetically is the permanent-magnet variable-speed device of radially magnetic structure, its high speed rotor assembly is in innermost ring radially, the adjustable magnetic iron block of middle ring for along the circumferential direction evenly arranging, outer shroud is the low speed rotor assembly, in the low speed rotor assembly, the low speed rotor permanent magnet is along the circumferential direction evenly closely arranged and is fixed on the internal circular surfaces of low speed rotor yoke; In the high speed rotor assembly, the high speed rotor permanent magnet is along the circumferential direction evenly closely arranged and is fixed on the outer round surface of high speed rotor yoke, the internal circular surfaces of low speed rotor permanent magnet is relative with the adjustable magnetic iron block respectively with the outer round surface of high speed rotor permanent magnet, and form outer air gap between adjustable magnetic iron block and the low speed rotor permanent magnet, air gap in forming between adjustable magnetic iron block and the high speed rotor permanent magnet.
The utility model has the advantages that: the utility model to the low cruise Effect on Performance, by design and analysis, has provided the logarithm p of high speed rotor permanent magnet based on permanent-magnet variable-speed device design parameter
h, the low speed rotor permanent magnet logarithm p
lCount n with adjustable magnetic iron block piece
sBetween relativeness, provided parameter p simultaneously
hAnd p
lGearratio G with the permanent-magnet variable-speed device
rRelation, therefore obtained different drive ratios G
rDown, p
hAnd p
lOptimum combination, structure of the present utility model has been guaranteed the even running of permanent-magnet variable-speed device when low speed, for the design of permanent-magnet variable-speed device provides foundation.
The utility model can obtain desirable runnability, helps reducing vibration and noise.
Description of drawings:
Fig. 1 is the structural representation of high speed rotor components side of the permanent-magnet variable-speed device of mixed magnetic circuit structure;
Fig. 2 is the structural representation of low speed rotor assembly side of the permanent-magnet variable-speed device of mixed magnetic circuit structure;
Fig. 3 is the structural representation of the permanent-magnet variable-speed device of axial magnetic circuit structure;
Fig. 4 is that the high speed rotor permanent magnet of permanent-magnet variable-speed device of axial magnetic circuit structure is at the distribution schematic diagram of circumferencial direction;
Fig. 5 is that the low speed rotor permanent magnet of permanent-magnet variable-speed device of axial magnetic circuit structure is at the distribution schematic diagram of circumferencial direction;
Fig. 6 is that the adjustable magnetic iron block of permanent-magnet variable-speed device of axial magnetic circuit structure is at the distribution schematic diagram of circumferencial direction;
Fig. 7 is the structural representation of the permanent-magnet variable-speed device of radially magnetic structure.
Embodiment
Embodiment one: below in conjunction with Fig. 1 and Fig. 7 present embodiment is described, present embodiment comprises high speed rotor assembly, low speed rotor assembly and adjustable magnetic iron block 3, the gearratio G of described permanent-magnet variable-speed device
rNumber of pole-pairs p with the high speed rotor assembly
h, the low speed rotor assembly number of pole-pairs p
l, adjustable magnetic iron block 3 piece count n
sBetween the pass be:
n
s=p
l+ p
h
Embodiment two: present embodiment is for further specifying the magnetic pole logarithm p of described high speed rotor permanent magnet 1-2 to execution mode one
hEqual 4, the magnetic pole logarithm p of low speed rotor permanent magnet 2-2
lEqual 26, the piece of adjustable magnetic iron block 3 is counted n
sEqual 30.Other is identical with execution mode one.
Select the magnetic pole logarithm p of high speed rotor permanent magnet 1-2
hBe 4 experimental prototype, this moment low speed rotor permanent magnet 2-2 magnetic pole logarithm p
lBe 26, adjustable magnetic iron block 3 number n
sBe 30, its gearratio G
rBe-6.5, experiment showed, that its test effect can reach requirement.
Embodiment three: present embodiment is for further specifying the magnetic pole logarithm p of described high speed rotor permanent magnet 1-2 to execution mode one
hEqual 5, the magnetic pole logarithm p of low speed rotor permanent magnet 2-2
lEqual 30, the piece of adjustable magnetic iron block 3 is counted n
sEqual 35.Other is identical with execution mode one.
Embodiment four: present embodiment is for further specifying the magnetic pole logarithm p of described high speed rotor permanent magnet 1-2 to execution mode one
hEqual 6, the magnetic pole logarithm p of low speed rotor permanent magnet 2-2
lEqual 27, the piece of adjustable magnetic iron block 3 is counted n
sEqual 33.Other is identical with execution mode one.
Embodiment five: present embodiment is for further specifying the magnetic pole logarithm p of described high speed rotor permanent magnet 1-2 to execution mode one
hEqual 7, the magnetic pole logarithm p of low speed rotor permanent magnet 2-2
lEqual 28, the piece of adjustable magnetic iron block 3 is counted n
sEqual 35.Other is identical with execution mode one.
Embodiment six: present embodiment is for further specifying the magnetic pole logarithm p of described high speed rotor permanent magnet 1-2 to execution mode one
hEqual 8, the magnetic pole logarithm p of low speed rotor permanent magnet 2-2
lEqual 28, the piece of adjustable magnetic iron block 3 is counted n
sEqual 36.Other is identical with execution mode one.
The utility model has comprehensively provided the influence relation of each design parameter to gearratio, and has obtained different drive ratios G by design and analysis
rUnder optimum combination and bad combination, see that optimized parameter cooperates and bad parameter cooperation table 1 for details.
Table 1
Concerning undersized relatively permanent-magnet variable-speed device, the magnetic pole logarithm p of high speed rotor permanent magnet 1-2
hUnsuitable too many, otherwise corresponding identical gearratio G
r, the magnetic pole logarithm p of low speed rotor permanent magnet 2-2
lNumber of pole-pairs too much, mechanical processing technique and magnetic field utilance are all undesirable.
Can sum up from table 1, at the magnetic pole logarithm p of low speed rotor permanent magnet 2-2
lBe no more than under 30 the prerequisite, take all factors into consideration difficulty of processing and location torque number of times two aspect factors, the magnetic pole logarithm p of high speed rotor permanent magnet 1-2
hBe 4,5,6,7,8 o'clock, the gearratio of optimum combination correspondence is respectively-6.5 ,-6 ,-4.5 ,-4 ,-3.5.
Embodiment seven: present embodiment is described below in conjunction with Fig. 1 to Fig. 2, present embodiment is further specifying execution mode one to six, the described speed changer of torque permanent magnet energetically is the permanent-magnet variable-speed device of mixed magnetic circuit structure, its high speed rotor assembly is identical with the external diameter of low speed rotor assembly, and coaxial setting, have the gap between high speed rotor assembly and the low speed rotor assembly, the distance between two outer faces of high speed rotor assembly and low speed rotor assembly is L
Adjustable magnetic iron block 3 is that length is the strip iron block of L, n
sPiece adjustable magnetic iron block 3 evenly distributes along the outer round surface side of high speed rotor assembly, and n
sOne end of piece adjustable magnetic iron block 3 aligns with the outer face of high speed rotor assembly, described n
sHave air gap between the outer round surface of piece adjustable magnetic iron block 3 and high speed rotor assembly,
The high speed rotor assembly is made up of high speed rotor yoke 1-1 and a plurality of high speed rotor permanent magnet 1-2, a plurality of high speed rotor permanent magnet 1-2 along the circumferential direction evenly closely arrange and are fixed on the outer round surface of high speed rotor yoke 1-1, and the polarity of adjacent high speed rotor permanent magnet 1-2 is opposite
The low speed rotor assembly is made up of low speed rotor yoke 2-1 and a plurality of low speed rotor permanent magnet 2-2, a plurality of low speed rotor permanent magnet 2-2 along the circumferential direction evenly closely arrange and are fixed on the outer round surface of low speed rotor yoke 2-1, and the polarity of adjacent low speed rotor permanent magnet 2-2 is opposite
The outer round surface of high speed rotor assembly is the formed outer round surface of a plurality of high speed rotor permanent magnet 1-2, and the outer round surface of low speed rotor assembly is the formed outer round surface of a plurality of low speed rotor permanent magnet 2-2.
When the high-speed side of permanent-magnet variable-speed device or low speed side were seen, the permanent-magnet variable-speed device all was the equal of a magneto, and its location torque number of times just depends on the magnetic pole logarithm of corresponding rotor permanent magnet and the number n of adjustable magnetic iron block 3
sThe location torque number of times is high more, and then its amplitude is more little, and is more little to the low-speed performance influence of speed changer.Least rational, be the number n of the magnetic pole logarithm and the adjustable magnetic iron block 3 of rotor permanent magnet
sBecome the integral multiple relation, the amplitude maximum of the location torque of permanent-magnet variable-speed device at this moment, the torque pulsation during the speed changer low cruise is the most obvious.
Embodiment eight: present embodiment is described below in conjunction with Fig. 3 to Fig. 6, present embodiment is further specifying execution mode one to six, the described speed changer of torque permanent magnet energetically is the permanent-magnet variable-speed device of axial magnetic circuit structure, its high speed rotor assembly and low speed rotor assembly are respectively in the axial two ends of adjustable magnetic iron block 3, and in axial direction be followed successively by high speed rotor yoke 1-1, high speed rotor permanent magnet 1-2, adjustable magnetic iron block 3, low speed rotor permanent magnet 2-2 and low speed rotor yoke 2-1 form air gap respectively between high speed rotor permanent magnet 1-2 and the adjustable magnetic iron block 3 and between adjustable magnetic iron block 3 and the low speed rotor permanent magnet 2-2.
Embodiment nine: present embodiment is described below in conjunction with Fig. 7, present embodiment is further specifying execution mode one to six, the described speed changer of torque permanent magnet energetically is the permanent-magnet variable-speed device of radially magnetic structure, its high speed rotor assembly is in innermost ring radially, the adjustable magnetic iron block 3 of middle ring for along the circumferential direction evenly arranging, outer shroud is the low speed rotor assembly, in the low speed rotor assembly, low speed rotor permanent magnet 2-2 along the circumferential direction evenly closely arranges and is fixed on the internal circular surfaces of low speed rotor yoke 2-1; In the high speed rotor assembly, high speed rotor permanent magnet 1-2 along the circumferential direction evenly closely arranges and is fixed on the outer round surface of high speed rotor yoke 1-1, the internal circular surfaces of low speed rotor permanent magnet 2-2 is relative with adjustable magnetic iron block 3 respectively with the outer round surface of high speed rotor permanent magnet 1-2, and form outer air gap between adjustable magnetic iron block 3 and the low speed rotor permanent magnet 2-2, air gap in forming between adjustable magnetic iron block 3 and the high speed rotor permanent magnet 1-2.
Can learn the magnetic pole logarithm p of low speed rotor permanent magnet 2-2 of the present utility model by the respective embodiments described above are described
l, high speed rotor permanent magnet 1-2 magnetic pole logarithm p
hCount n with the piece of adjustable magnetic iron block 3
sThe restriction relation of optimum combination, be applicable to that all radially, axially reach the permanent-magnet variable-speed device of hybrid magnetic structure, and the permanent magnetism compound gear.
Claims (9)
1. torque permanent magnet speed changer energetically, it comprises high speed rotor assembly, low speed rotor assembly and adjustable magnetic iron block (3), it is characterized in that: the gearratio G of described permanent-magnet variable-speed device
rNumber of pole-pairs p with the high speed rotor assembly
h, the low speed rotor assembly number of pole-pairs p
l, adjustable magnetic iron block (3) piece count n
sBetween the pass be:
n
s=p
l+ p
h
2. the speed changer of torque permanent magnet energetically according to claim 1 is characterized in that: the magnetic pole logarithm p of described high speed rotor permanent magnet (1-2)
hEqual 4, the magnetic pole logarithm p of low speed rotor permanent magnet (2-2)
lEqual 26, the piece of adjustable magnetic iron block (3) is counted n
sEqual 30.
3. the speed changer of torque permanent magnet energetically according to claim 1 is characterized in that: the magnetic pole logarithm p of described high speed rotor permanent magnet (1-2)
hEqual 5, the magnetic pole logarithm p of low speed rotor permanent magnet (2-2)
lEqual 30, n
sEqual 35.
4. the speed changer of torque permanent magnet energetically according to claim 1 is characterized in that: the magnetic pole logarithm p of described high speed rotor permanent magnet (1-2)
hEqual 6, the magnetic pole logarithm p of low speed rotor permanent magnet (2-2)
lEqual 27, the piece of adjustable magnetic iron block (3) is counted n
sEqual 33.
5. the speed changer of torque permanent magnet energetically according to claim 1 is characterized in that: the magnetic pole logarithm p of described high speed rotor permanent magnet (1-2)
hEqual 7, the magnetic pole logarithm p of low speed rotor permanent magnet (2-2)
lEqual 28, the piece of adjustable magnetic iron block (3) is counted n
sEqual 35.
6. the speed changer of torque permanent magnet energetically according to claim 1 is characterized in that: the magnetic pole logarithm p of described high speed rotor permanent magnet (1-2)
hEqual 8, the magnetic pole logarithm p of low speed rotor permanent magnet (2-2)
lEqual 28, the piece of adjustable magnetic iron block (3) is counted n
sEqual 36.
7. according to the described torque permanent magnet energetically of any one claim of claim 1 to 6 speed changer, it is characterized in that: the described speed changer of torque permanent magnet energetically is the permanent-magnet variable-speed device of mixed magnetic circuit structure, its high speed rotor assembly is identical with the external diameter of low speed rotor assembly, and coaxial setting, has the gap between high speed rotor assembly and the low speed rotor assembly, distance between two outer faces of high speed rotor assembly and low speed rotor assembly is L
Adjustable magnetic iron block (3) is that length is the strip iron block of L, n
sPiece adjustable magnetic iron block (3) evenly distributes along the outer round surface side of high speed rotor assembly, and n
sOne end of piece adjustable magnetic iron block (3) aligns with the outer face of high speed rotor assembly, described n
sHave air gap between the outer round surface of piece adjustable magnetic iron block (3) and high speed rotor assembly,
The high speed rotor assembly is made up of high speed rotor yoke (1-1) and a plurality of high speed rotor permanent magnet (1-2), a plurality of high speed rotor permanent magnets (1-2) are along the circumferential direction evenly closely arranged and are fixed on the outer round surface of high speed rotor yoke (1-1), and the polarity of adjacent high speed rotor permanent magnet (1-2) is opposite
The low speed rotor assembly is made up of low speed rotor yoke (2-1) and a plurality of low speed rotor permanent magnet (2-2), a plurality of low speed rotor permanent magnets (2-2) are along the circumferential direction evenly closely arranged and are fixed on the outer round surface of low speed rotor yoke (2-1), and the polarity of adjacent low speed rotor permanent magnet (2-2) is opposite
The outer round surface of high speed rotor assembly is the formed outer round surface of a plurality of high speed rotor permanent magnets (1-2), and the outer round surface of low speed rotor assembly is the formed outer round surface of a plurality of low speed rotor permanent magnets (2-2).
8. according to the described torque permanent magnet energetically of any one claim of claim 1 to 6 speed changer, it is characterized in that: the described speed changer of torque permanent magnet energetically is the permanent-magnet variable-speed device of axial magnetic circuit structure, its high speed rotor assembly and low speed rotor assembly are respectively in the axial two ends of adjustable magnetic iron block (3), and in axial direction be followed successively by high speed rotor yoke (1-1), high speed rotor permanent magnet (1-2), adjustable magnetic iron block (3), low speed rotor permanent magnet (2-2) and low speed rotor yoke (2-1) form air gap respectively between high speed rotor permanent magnet (1-2) and the adjustable magnetic iron block (3) and between adjustable magnetic iron block (3) and the low speed rotor permanent magnet (2-2).
9. according to the described torque permanent magnet energetically of any one claim of claim 1 to 6 speed changer, it is characterized in that: the described speed changer of torque permanent magnet energetically is the permanent-magnet variable-speed device of magnetic structure radially, its high speed rotor assembly is in innermost ring radially, the adjustable magnetic iron block (3) of middle ring for along the circumferential direction evenly arranging, outer shroud is the low speed rotor assembly, in the low speed rotor assembly, low speed rotor permanent magnet (2-2) is along the circumferential direction evenly closely arranged and is fixed on the internal circular surfaces of low speed rotor yoke (2-1); In the high speed rotor assembly, high speed rotor permanent magnet (1-2) is along the circumferential direction evenly closely arranged and is fixed on the outer round surface of high speed rotor yoke (1-1), the internal circular surfaces of low speed rotor permanent magnet (2-2) is relative with adjustable magnetic iron block (3) respectively with the outer round surface of high speed rotor permanent magnet (1-2), and form outer air gap between adjustable magnetic iron block (3) and the low speed rotor permanent magnet (2-2), air gap in forming between adjustable magnetic iron block (3) and the high speed rotor permanent magnet (1-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200575212U CN201994824U (en) | 2011-03-07 | 2011-03-07 | High-torque permanent magnet transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200575212U CN201994824U (en) | 2011-03-07 | 2011-03-07 | High-torque permanent magnet transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201994824U true CN201994824U (en) | 2011-09-28 |
Family
ID=44671298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200575212U Expired - Fee Related CN201994824U (en) | 2011-03-07 | 2011-03-07 | High-torque permanent magnet transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201994824U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441651A (en) * | 2013-09-03 | 2013-12-11 | 东南大学 | Multi-port energy conversion device |
| CN103840637A (en) * | 2014-03-17 | 2014-06-04 | 华中科技大学 | Magnetic field modulation type permanent magnetic coupler |
| CN104221269A (en) * | 2012-03-27 | 2014-12-17 | 日立金属株式会社 | Frequency conversion device |
| CN113991968A (en) * | 2021-11-03 | 2022-01-28 | 大连交通大学 | Double-excitation double-modulation disc type permanent magnet gear |
-
2011
- 2011-03-07 CN CN2011200575212U patent/CN201994824U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104221269A (en) * | 2012-03-27 | 2014-12-17 | 日立金属株式会社 | Frequency conversion device |
| CN104221269B (en) * | 2012-03-27 | 2017-07-25 | 日立金属株式会社 | Frequency conversion apparatus |
| US9755552B2 (en) | 2012-03-27 | 2017-09-05 | Hitachi Metals, Ltd. | Frequency converter |
| CN103441651A (en) * | 2013-09-03 | 2013-12-11 | 东南大学 | Multi-port energy conversion device |
| CN103441651B (en) * | 2013-09-03 | 2016-01-06 | 东南大学 | A kind of multi-port energy conversion device |
| CN103840637A (en) * | 2014-03-17 | 2014-06-04 | 华中科技大学 | Magnetic field modulation type permanent magnetic coupler |
| CN113991968A (en) * | 2021-11-03 | 2022-01-28 | 大连交通大学 | Double-excitation double-modulation disc type permanent magnet gear |
| CN113991968B (en) * | 2021-11-03 | 2023-11-14 | 大连交通大学 | Double-excitation double-modulation disc type permanent magnet gear |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102155492B (en) | Mixed type driving and driven magnetic suspension bearing | |
| CN102312986B (en) | Outer rotor magnetic flux collecting magnetic gear | |
| CN201994824U (en) | High-torque permanent magnet transmission | |
| CN206807260U (en) | A kind of New Magnetic Field Controlled geared system | |
| CN201742192U (en) | Tangential magnetic steel rotor structure of permanent magnet motor | |
| CN204967578U (en) | Reduce PMSM torque ripple's rotor structure | |
| CN2894036Y (en) | Economic self-starting permanent magnetic synchronous motor | |
| CN203014620U (en) | A permanent magnetic motor | |
| CN202142926U (en) | Motor rotor and motor with same | |
| CN102324821A (en) | Coaxial magnetic gear | |
| CN102269221B (en) | Mixed excitation shaft radial magnetic suspension bearing | |
| CN109889016A (en) | A kind of high torque density magnetic-gear of non-homogeneous air gap | |
| CN103929026B (en) | Magneto | |
| CN209472530U (en) | A kind of high torque density magnetic-gear of non-homogeneous air gap | |
| CN105141109A (en) | Magnetic field modulation type coaxial magnetic gear | |
| CN206077099U (en) | Motor and its rotor structure | |
| CN103915921B (en) | Magneto | |
| CN202206274U (en) | Coaxial magnetic gear | |
| CN202395636U (en) | Low-speed and high-thrust-density linear motor | |
| CN104917352A (en) | Magnetic gear with magnetism regulating ring adopting chute structure for reducing torque pulsation | |
| CN202203361U (en) | Outer rotor magnetism-gathering magnetic gear | |
| CN202513694U (en) | Permanent magnet motor | |
| CN202997723U (en) | Permanent magnetic motor | |
| CN101975224B (en) | Magnetic suspension bearing of hybrid magnetic circuit | |
| CN109586549A (en) | A kind of axial direction taper magnetic gear |
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: 20110928 Termination date: 20130307 |