CN201821183U - Permanent magnet fixing structure of permanent magnet generator or motor - Google Patents
Permanent magnet fixing structure of permanent magnet generator or motor Download PDFInfo
- Publication number
- CN201821183U CN201821183U CN2010202438501U CN201020243850U CN201821183U CN 201821183 U CN201821183 U CN 201821183U CN 2010202438501 U CN2010202438501 U CN 2010202438501U CN 201020243850 U CN201020243850 U CN 201020243850U CN 201821183 U CN201821183 U CN 201821183U
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- Prior art keywords
- permanent magnet
- pole shoe
- fixed
- motor
- fixed structure
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- Expired - Lifetime
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- 239000012212 insulator Substances 0.000 claims description 10
- 239000000696 magnetic material Substances 0.000 claims description 7
- 238000006664 bond formation reaction Methods 0.000 claims description 5
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model relates to a permanent magnet fixing structure of a permanent magnet generator, which comprises a rotor cylinder and permanent magnets arranged along the circumference of the surface of the rotor cylinder at intervals, wherein pole shoes used for fixing the permanent magnets are arranged between adjacent permanent magnets arranged along the circumference of the surface of the rotor cylinder, the two side surfaces of each pole shoe are respectively provided with a protruding part used for tightly compressing the permanent magnets on the two sides of the pole shoe, and each permanent magnet is fixed on the surface of the rotor cylinder through the pole shoes adjacent to the two sides of the permanent magnet. The utility model effectively solves the problems that the permanent magnets of the existing generator are unstably fixed and waste time and energy during fixation, reduces air gaps between rotors and stators, and improves the work efficiency of the generator.
Description
Technical field
The utility model relates to a kind of generator or motor, is specifically related to the permanent magnet fixed structure of a kind of permanent magnet generator or motor.
Background technology
Permanent magnet generator is widely used in each power field.In existing permanent magnet generator, be mostly permanent magnet is fixed on the surface (permanent magnet is between air gap) of rotor drum structure.For fixed permanent magnet, the general glue that adopts is bonded in rotor surface with it, every permanent magnet all must be forced into rotor surface, and till bonding firmly, large-scale computer needed hundreds of sheet permanent magnet, the whole process of being adhesively fixed is very consuming time, and have bonding not firm problem, though there are some to adopt carriage to assist fixing permanent magnet forever, in case viscose glue goes wrong, carriage is to fix permanent magnet, and permanent magnet comes off and will damage motor.Because permanent magnet is located at the surface of rotor drum, therefore, the air gap between rotor and the stator be permanent magnet thickness with permanent magnet surfaces arrive stator inner surface apart from sum, have the big problem of air gap, and then influence power output efficient.
The CN200520045576.6 utility model patent discloses a kind of Nd-Fe-B permanent-magnet motor rotor that is used on the wind-driven generator; in this patent for fear of separately by the not firm problem that is adhesively fixed; it is provided with installing hole in the middle of magnet; be provided with fixing hole in the rotor surface correspondence; magnet is fixed on the surface of rotor by screw; and between adjacent magnets, be provided with separator, be provided with protective layer at the outer surface of magnet and separator.Though this patent has solved bonding not firm problem, still waste time and energy for the fixing of up to a hundred magnets.And also be very difficult for the extremely strong permanent magnet of magnetic force location.
Summary of the invention
The purpose of this utility model is to solve existing permanent magnet generator permanent magnet to fix defective not firm and that waste time and energy, solve the existing permanent magnet mode that is adhesively fixed simultaneously and have the big problem of air gap, the permanent magnet that a kind of convenience is fixed and reliability is high, power output is high fixed structure is provided.
The technical solution of the utility model is: a kind of permanent magnet generator or motor permanent magnet fixed structure, and it comprises rotor drum, the permanent magnet that circumferentially evenly is provided with at interval along described rotor drum surface; It is characterized in that: be provided with the pole shoe that is used for fixing described permanent magnet along between the described adjacent permanent magnet, the two sides of described pole shoe are respectively equipped with the protuberance that is used to compress the both sides permanent magnet; Described permanent magnet is fixed on described rotor drum surface by the adjacent described pole shoe in its both sides.
As optimal way, the top arcuation face of described pole shoe for projecting upwards.
As a kind of optimal way, be provided with the pole shoe insulator between described pole shoe, permanent magnet and the described rotor drum, to prevent that permanent magnet is to the rotor drum leakage field.
As preferably, the protuberance of pole shoe described in the utility model is located at the upper end of the both sides of pole shoe.
As preferably, described pole shoe comprises that one is used for and will itself be fixedly mounted on the fixed part on rotor drum surface, described fixed part comprise along described pole shoe body central shaft to the installing hole that is provided with under described pole shoe towards the fixing hole of the vertical perforation of described installing hole, the lower surface of described installing hole is the plane.Adopt fixedly pole shoe of installing hole and fixing hole, its advantage is, can alleviate the weight of pole shoe on the one hand, thereby alleviate the weight of rotor, is beneficial to ventilation and heat simultaneously.
As preferably, in the installing hole of described pole shoe, be provided with one and extend axially the pole shoe fixed lever that connects axial pole shoe, described pole shoe fixed lever is provided with the through hole that is used for fixing pole shoe corresponding to the position of the fixing hole of described pole shoe, and described pole shoe fixed lever is fixed on described pole shoe and described pole shoe insulator on the described rotor drum by screw.
As preferably, the outer face that is preferably in described rotor drum end permanent magnet is provided with the fixing dististyle of permanent magnet that is used for the axial restraint permanent magnet, and described permanent magnet fixedly dististyle is fixed on the end of described pole shoe fixed lever.Employing permanent magnet fixedly dististyle also is fixed on the pole shoe anchor portion dexterously, can realize the axial restraint of permanent magnet easily.
As preferably, the described permanent magnet fixedly position of corresponding pole shoe 3 installing holes 33 in upper end of dististyle has a v-shaped openings 22.
In order to reduce permanent magnet eddy current loss, be one deck magnetic material or the bonding formation of two-layer, two-layer above magnetic material at least as preferred described permanent magnet.With the permanent magnet layering, and be bonded as one, can reduce the thickness of permanent magnet, reduce the eddy current loss of permanent magnet, improve efficiency of motor by insulating cement.
The utility model is provided with protuberance in the both sides of this pole shoe owing to circumferentially all be provided with the ordered series of numbers pole shoe in the surperficial upper edge of rotor drum, thereby just forms a passage that penetrates for permanent magnet between the adjacent pole shoe of two row.Therefore, permanent magnet can directly be inserted into permanent magnet within the passage one by one with instrument when assembling, need not to stick with glue to connect again.Because pole shoe is not magnetic material, so it is easy to be fixed on the surface of rotor drum, permanent magnet is placed in the passage between the pole shoe, whole process only needs the very short time to finish, and for large-size machine, the efficient of permanent magnet assembling improves more remarkable.And the assembly precision of the fixed form of permanent magnet of the present utility model is higher than available technology adopting line, bonding or screw fixation method far away.Particularly, between permanent magnet, be provided with the pole shoe that is used for fixing permanent magnet, can reduce the air gap between rotor and the stator, and make Distribution of Magnetic Field more even, reduce eddy current. can make power output improve at least 25% thus.We once carried out design improvement to the 1.3MW generator that adopts the surface to paste magnetic technology, and after having adopted solution of the present utility model, the power output of generator has reached 1.7MW, and power output has improved 30.77%.
Description of drawings
Fig. 1 is the end face partial view of permanent magnet generator described in the utility model or motor permanent magnet fixed structure;
Fig. 2 is the partial top view of permanent magnet generator described in the utility model or motor permanent magnet fixed structure;
Fig. 3 is the schematic diagram of the pole shoe of permanent magnet generator described in the utility model or motor permanent magnet fixed structure;
Fig. 4 is the pole shoe insulator schematic diagram of permanent magnet generator described in the utility model or motor permanent magnet fixed structure;
Fig. 5 is the pole shoe fixed lever schematic diagram of permanent magnet generator described in the utility model or motor permanent magnet fixed structure;
Fig. 6 is the fixing dististyle schematic diagram of permanent magnet of permanent magnet generator described in the utility model or motor permanent magnet fixed structure;
Fig. 7 is the permanent magnet schematic diagram of permanent magnet generator described in the utility model or motor permanent magnet fixed structure.
Embodiment
Referring to Fig. 1,2, showed permanent magnet generator described in the utility model or motor permanent magnet fixed structure among the figure, it comprises rotor drum 6, is provided with ordered series of numbers permanent magnet 1 along circumferentially even compartment of terrain, the surface of rotor drum 6; Be provided with pole shoe 3 between described permanent magnet 1, the two sides of pole shoe 3 are respectively equipped with the protuberance 31 that is used to compress both sides permanent magnet 1; Optimal way is the upper end that protuberance 31 is located at the two sides of described pole shoe 3, form the passage that the described permanent magnet 1 of confession penetrates between the two adjacent pole shoes, described permanent magnet 1 is inserted in the described passage and is fixed on the surface of described rotor drum 6 by the protuberance 31 of the adjacent pole shoe 3 in its both sides.Certainly, the protuberance 31 of wherein said pole shoe 3 can be located at the side of pole shoe 3, only needs this moment to be provided with a groove at the side of permanent magnet 1 correspondence position, promptly can realize the fixing of permanent magnet 1.
In order to prevent leakage field, between rotor drum and pole shoe, be provided with pole shoe insulator 5.Participate in Fig. 4, in the present embodiment, as a kind of optimal way, this pole shoe insulator 5 is vertically corresponding with a described rotor drum long bars, and the pole shoe insulating part 5 uniform surfaces that closely are arranged in rotor drum.Described pole shoe insulator 5 can be the bars in the present embodiment, arranges continuously and is covered with along the rotor drum peripheral surface; Also can be the insulating cement belt of insulating tape around the rotor drum winding; Perhaps be one to be located at the insulating cylinder between rotor drum and permanent magnet, the pole shoe.
Wherein, described pole shoe 3 can be fixed on the surface of rotor drum 6 easily, can adopt screw directly to be fixed on the rotor drum surface.Referring to Fig. 3, provided a kind of preferred fixed form in the present embodiment: comprise that at described pole shoe 3 one is used for and will itself be fixedly mounted on the fixed part 32 on rotor drum 6 surfaces; Described fixed part 32 comprises along described pole shoe body central shaft to the installing hole 33 that is provided with, with under described pole shoe towards the fixing hole 34 of described installing hole 33 vertical perforations, in the present embodiment, fixing hole 34 is a strip hole that axially connects whole pole shoe, and the lower surface 35 of described installing hole 33 is the plane.Thus, the fixing hole 34 that screw can be passed fixing hole 51 on the described pole shoe insulating part 5, pole shoe in rotor drum extend into the installing hole 33 of pole shoe fixing.The fixing hole 34 of pole shoe 3 is can alleviate the weight of pole shoe from the advantages that the installing hole 33 of pole shoe 3 is provided with downwards, and helps ventilation and heat.
Referring to Fig. 3, top 36 of described pole shoe 3 adopts the arcuation face that projects upwards, and is beneficial to Distribution of Magnetic Field.
Referring to Fig. 2, the pole shoe 3 between the two row adjacent permanent magnet 1 outside the described rotor drum is several continuous distribution vertically, also can as a whole pole shoe.
Referring to Fig. 6,4, for permanent magnet 1 is fixing vertically, be provided with the fixing dististyle 2 of permanent magnet that is used for axial restraint permanent magnet 1 in the outer face of the permanent magnet 1 of axial end portion, described permanent magnet fixedly is provided with hole 21 in the middle of the dististyle 2, by screw fixedly dististyle 2 be fixed on the bending part 42 of described pole shoe fixed lever 4, thereby the end of realizing permanent magnet 1 is fixed.Further, the permanent magnet fixedly position of corresponding pole shoe 3 installing holes 33 in upper end of dististyle 2 has a v-shaped openings 22, is beneficial to ventilation and heat and weight reduction.
Referring to Fig. 7, in the present embodiment, for reducing the eddy current loss in the permanent magnet, described permanent magnet 1 is that 3 layers of magnetic material are by the bonding formation of insulating cement, because insulating cement is as the insulating barrier 11 of each interlayer of permanent magnet, the thickness of individual layer permanent magnet reduces, and can reduce eddy current loss effectively thus, raises the efficiency.Permanent magnet 1 can be divided into more multi-layered structure as required.
The above only is a preferred embodiment of the present utility model, the utility model is intended to reach the purpose that makes things convenient for fixed permanent magnet by special pole shoe structure, can reduce the air gap between rotor and stator simultaneously, makes Distribution of Magnetic Field more even, reduce eddy current, improve the effect of power output.On the basis of the foregoing description; can also decompose again and combination; perhaps carrying out simple key element replaces; for example: the fixed form that changes pole shoe; the structure that changes the pole shoe insulator can obtain more execution mode; these execution modes all should be worked as and belong to protection range of the present utility model as if the inventive concept that does not break away from the application.
Claims (14)
1. permanent magnet generator or motor permanent magnet fixed structure, it comprises rotor drum, the permanent magnet that circumferentially evenly is provided with at interval along described rotor drum surface; It is characterized in that: be provided with the pole shoe that is used for fixing described permanent magnet along between the described adjacent permanent magnet, the two sides of described pole shoe are respectively equipped with the protuberance that is used to compress the both sides permanent magnet; Described permanent magnet is fixed on described rotor drum surface by the adjacent described pole shoe in its both sides.
2. permanent magnet generator according to claim 1 or motor permanent magnet fixed structure is characterized in that: be provided with the pole shoe insulator between described pole shoe, permanent magnet and the described rotor drum.
3. permanent magnet generator according to claim 1 or motor permanent magnet fixed structure, it is characterized in that: the protuberance of described pole shoe is located at the upper end of the both sides of pole shoe.
4. according to claim 1-3 wherein each described permanent magnet generator or motor permanent magnet fixed structure, it is characterized in that: described pole shoe comprises that one is used for and will itself be fixedly mounted on the fixed part on rotor drum surface, described fixed part comprise along described pole shoe body central shaft to the installing hole that is provided with under described pole shoe towards the fixing hole of the vertical perforation of described installing hole, the lower surface of described installing hole is the plane.
5. permanent magnet generator according to claim 4 or motor permanent magnet fixed structure is characterized in that: the top arcuation face for projecting upwards of described pole shoe.
6. permanent magnet generator according to claim 4 or motor permanent magnet fixed structure, it is characterized in that: in the installing hole of described pole shoe, be provided with one and extend axially the pole shoe fixed lever that connects axial pole shoe, described pole shoe fixed lever is provided with the through hole that is used for fixing pole shoe corresponding to the position of the fixing hole of described pole shoe, and described pole shoe fixed lever is fixed on described pole shoe and described pole shoe insulator on the described rotor drum by screw.
7. permanent magnet generator according to claim 5 or motor permanent magnet fixed structure, it is characterized in that: in the installing hole of described pole shoe, be provided with one and extend axially the pole shoe fixed lever that connects axial pole shoe, described pole shoe fixed lever is provided with the through hole that is used for fixing pole shoe corresponding to the position of the fixing hole of described pole shoe, and described pole shoe fixed lever is fixed on described pole shoe and described pole shoe insulator on the described rotor drum by screw.
8. permanent magnet generator according to claim 6 or motor permanent magnet fixed structure, it is characterized in that: be provided with the fixing dististyle of permanent magnet that is used for the axial restraint permanent magnet in the outer face of described rotor drum end permanent magnet, described permanent magnet fixedly dististyle is fixed on the end of described pole shoe fixed lever.
9. permanent magnet generator according to claim 7 or motor permanent magnet fixed structure, it is characterized in that: be provided with the fixing dististyle of permanent magnet that is used for the axial restraint permanent magnet in the outer face of described rotor drum end permanent magnet, described permanent magnet fixedly dististyle is fixed on the end of described pole shoe fixed lever.
10. permanent magnet generator according to claim 8 or motor permanent magnet fixed structure is characterized in that: the described permanent magnet fixedly position of corresponding pole shoe 3 installing holes 33 in upper end of dististyle has a v-shaped openings 22.
11. permanent magnet generator according to claim 9 or motor permanent magnet fixed structure is characterized in that: the described permanent magnet fixedly position of corresponding pole shoe 3 installing holes 33 in upper end of dististyle has a v-shaped openings 22.
12. according to claim 1-3 wherein each described permanent magnet generator or motor permanent magnet fixed structure, it is characterized in that: described permanent magnet is the bonding formation of two-layer or two-layer above magnetic material.
13. permanent magnet generator according to claim 10 or motor permanent magnet fixed structure is characterized in that: described permanent magnet is the bonding formation of two-layer or two-layer above magnetic material.
14. permanent magnet generator according to claim 11 or motor permanent magnet fixed structure is characterized in that: described permanent magnet is the bonding formation of two-layer or two-layer above magnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202438501U CN201821183U (en) | 2010-07-01 | 2010-07-01 | Permanent magnet fixing structure of permanent magnet generator or motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202438501U CN201821183U (en) | 2010-07-01 | 2010-07-01 | Permanent magnet fixing structure of permanent magnet generator or motor |
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| Publication Number | Publication Date |
|---|---|
| CN201821183U true CN201821183U (en) | 2011-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202438501U Expired - Lifetime CN201821183U (en) | 2010-07-01 | 2010-07-01 | Permanent magnet fixing structure of permanent magnet generator or motor |
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| Country | Link |
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| CN (1) | CN201821183U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290928A (en) * | 2011-08-19 | 2011-12-21 | 广东明阳风电产业集团有限公司 | Method for installing magnet components of permanent magnet motor |
| CN102315710A (en) * | 2010-07-01 | 2012-01-11 | Hrs风电技术有限公司 | Fixing structure of permanent magnet generator or motor permanent magnet |
| CN109691906A (en) * | 2017-10-23 | 2019-04-30 | 佛山市顺德区美的电热电器制造有限公司 | Disk, stirring toolbox and food cooking machine |
-
2010
- 2010-07-01 CN CN2010202438501U patent/CN201821183U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102315710A (en) * | 2010-07-01 | 2012-01-11 | Hrs风电技术有限公司 | Fixing structure of permanent magnet generator or motor permanent magnet |
| CN102315710B (en) * | 2010-07-01 | 2014-03-26 | 京能新能源科技（上海）有限公司 | Fixing structure of permanent magnet generator or motor permanent magnet |
| CN102290928A (en) * | 2011-08-19 | 2011-12-21 | 广东明阳风电产业集团有限公司 | Method for installing magnet components of permanent magnet motor |
| CN109691906A (en) * | 2017-10-23 | 2019-04-30 | 佛山市顺德区美的电热电器制造有限公司 | Disk, stirring toolbox and food cooking machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CAPWIND TECHNOLOGY(SHANGHAI) CO., LTD. Free format text: FORMER OWNER: HRS WIND POWER TECHNOLOGY CO., LTD. Effective date: 20130827 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; TO: 200230 BAOSHAN, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130827 Address after: 200230, B-403, building 9088, 5 Hu Tai Road, Shanghai, Baoshan District Patentee after: HRS WIND POWER TECHNOLOGIES LTD. Address before: Virgin Islands (British) Patentee before: HRS WIND POWER TECHNOLOGY CO.,LTD. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110504 Effective date of abandoning: 20140326 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20110504 Effective date of abandoning: 20140326 |