CN204794415U - 6 utmost point formula rotor core of generator - Google Patents
6 utmost point formula rotor core of generator Download PDFInfo
- Publication number
- CN204794415U CN204794415U CN201520539664.5U CN201520539664U CN204794415U CN 204794415 U CN204794415 U CN 204794415U CN 201520539664 U CN201520539664 U CN 201520539664U CN 204794415 U CN204794415 U CN 204794415U
- Authority
- CN
- China
- Prior art keywords
- hole
- generator
- rotor
- rotor core
- depth
- 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
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a 6 utmost point formula rotor core of generator is cylindrical structure by multi -disc disc rotor punching pile pressure, rotor core's terminal surface central authorities set up a pivot hole, rotor core's peripheral face go up the equipartition leading thread to be equipped with 6 with the parallel groove in pivot hole forms a magnetic pole between per two adjacent grooves, the bottom surface central authorities in every groove still set up a backing plate fabrication hole. On rotor core's the terminal surface and the position of every magnetic pole set up respectively one with the parallel ventilation hole in pivot hole, width that the shape of backing plate fabrication hole is the lower part hole is big, the shape of falling T that the width is little in upper portion hole, and the degree of depth in lower part hole is greater than the degree of depth in upper portion hole. The utility model discloses a 6 utmost point formula rotor core of generator has solved calmly, the uneven problem of rotor temperature rise, has improved the performance of generator, has improved generator power.
Description
Technical field
The utility model relates to generator manufacture, particularly relates to salient pole (the being greater than 4 poles) rotor core of middle-size and small-size three-phase brushless alternating-current generator.
Background technology
The rotor core of current domestic and international existing middle-size and small-size three-phase brushless alternating-current generator has two kinds of versions: one is distributed polar rotor core structure, cylindrical (as Fig. 1); Another kind is salient pole type rotor iron core structure, and the magnetic pole of rotor is symmetric (as Fig. 2).
The feature of distributed polar rotor is: every polar curve circle of excitation winding is distributed, and will embed in grain one by one after coil winding, electrician be more for man-hour, is unfavorable for that automation is produced in enormous quantities; Rotor rule, insulation processing must be carried out after rotating shaft processing, iron core press-fit, and are unfavorable for parallel operations; Under same power situation, exciting power is comparatively large, and rotor copper consumption is more, and relative generator volume will design larger; Distributed polar rotor can adopt distribution excitation winding, and air-gap field waveform sine is better, and when zero load and load, voltage waveform is all better; The area of dissipation of excitation winding is comparatively large, and radiating condition is good.
The feature of salient pole rotor is: every polar curve circle of excitation winding is centralized, and electrician is less for man-hour, is conducive to automation and produces in enormous quantities; The coiling of excitation winding and the processing of rotating shaft can separately be carried out, and are convenient to parallel operations; Under same power situation, exciting power is less, and rotor copper consumption is less, and relative generator volume can design smaller; Stator line voltage waveform is poor, and during load, voltage waveform is not as distributed polar rotor, but by reasonably design can close to distributed polar rotor; The area of dissipation of excitation winding is less, and radiating condition is poor, and rotor temperature rise is higher, and namely stator and rotor temperature rise is uneven.
At present in the world popular by salient pole rotor for medium and small generator, be also a kind of trend of development, but also there is above-mentioned said shortcoming: rotor temperature rise is higher, namely stator and rotor temperature rise is uneven.
Utility model content
The purpose of this utility model is the defect overcoming prior art, provides a kind of 6 pole formula rotor cores of generator, it solves stator and rotor temperature rise imbalance problem, improve the performance of generator, improve generator power.
The purpose of this utility model is achieved in that a kind of 6 pole formula rotor cores of generator, laminated and cylindrical structure by the punching of multi-disc disk rotor, the end face central authorities of described rotor core offer a shaft hole, radially in uniform way in the peripheral surface of described rotor core be provided with 6 grooves parallel with described shaft hole, a magnetic pole is formed between every two adjacent grooves, the bottom surface central authorities of each groove also offer a backing plate fabrication hole, wherein
The end face of described rotor core offers a ventilation hole parallel with described shaft hole respectively in the position of each magnetic pole;
The shape of described backing plate fabrication hole is the inverted T-shaped that the width of bottom hole width that is large, upper hole is little, and the degree of depth of bottom hole is greater than the degree of depth of upper hole.
6 pole formula rotor cores of above-mentioned generator, wherein, the shape of described ventilation hole is long waist shaped, and the center line of the center line of each ventilation hole magnetic pole corresponding with it is overlapping.
6 pole formula rotor cores of above-mentioned generator, wherein, the degree of depth of the bottom hole of described backing plate fabrication hole is greater than the degree of depth 1 ~ 2mm of upper hole.
The technical scheme of 6 pole formula rotor cores of generator of the present utility model, by opening a long oval hole on each magnetic pole of rotor core, increase the ventilation of rotor core, generator amature temperature rise is declined, thus improve rotor temperature rise, improve generator performance, solve the ventilating problem of rotor core, finally solve original stator and rotor temperature rise imbalance problem, reach lifting generator power.Also by changing the shape of existing backing plate fabrication hole and the degree of depth, the ventilation of rotor core is more strengthened, more all even smooth and easy; Meanwhile, more can be convenient to line ball backing plate is installed, thus improve production efficiency, reduce production cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of conventional distributed polar rotor iron core;
Fig. 2 is the structural representation of conventional salient pole type rotor iron core;
Fig. 3 is the structural representation of 6 pole formula rotor cores of generator of the present utility model;
Fig. 4 is the structural representation of 6 pole formula rotor cores after the installation completing rotor windings of generator of the present utility model;
Fig. 5 is the end view of Fig. 4;
Fig. 6 is the structural representation of the rotor that 6 pole formula rotor cores of generator of the present utility model are formed.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Refer to Fig. 3,6 pole formula rotor cores of generator of the present utility model, laminated and cylindrical structure by multi-disc disk rotor punching 10, the end face central authorities of rotor core 100 offer a shaft hole 11, the peripheral surface of rotor core 100 is offered in uniform way 6 grooves 12 parallel with shaft hole 11, form a magnetic pole 13 between every two adjacent grooves 12, between shaft hole 11 and groove 12, form yoke 14.
The bottom surface central authorities of each groove 12 also offer a backing plate fabrication hole 15; The shape of backing plate fabrication hole 14 is the inverted T-shaped that the width of bottom hole width that is large, upper hole is little, and the degree of depth of bottom hole is greater than the degree of depth of upper hole.
The end face of rotor core 100 offers a ventilation hole 16 parallel with shaft hole 11 respectively in the position of each magnetic pole 13; The shape of ventilation hole 16 is long waist shaped, and the center line of the center line of each ventilation hole 16 magnetic pole 13 corresponding with it is overlapping.
After 6 pole formula rotor cores of generator of the present utility model are applied in 200 ~ 1680KW-6P three-phase brushless alternating-current generator, successfully solve the ventilating problem of rotor core, solve original stator and rotor temperature rise imbalance problem, improve the performance of generator, improve generator power.Meanwhile, change shape and the degree of depth of original backing plate fabrication hole, make that wire pressing block is installed faster than original, thus improve production efficiency, reduce production cost.
The course of processing of rotor is (see Fig. 4 to Fig. 5): after rotor punching 10 punching is shaped, first by laminating die, rotor punching 10 is pressed into the length of requirement, form rotor core 100, the welding of several welding rods 200 is carried out again in the both sides of each magnetic pole 13, form firm structure, through hot cover process, rotor core 100 is installed in rotating shaft 300 again, and carries out the coiling of rotor windings 400 in groove 12; Then in the rotating shaft 300 of the rear end of rotor core 100, gimbal 500 is installed through hot cover process, is carried out the dynamic balance check of rotor by gimbal 500, to ensure rotor non-jitter in operation process.Generator amature is extracted into outside by the fan 600 being arranged on the front end of rotating shaft 300 air in operation process, through long waist shaped ventilation hole 16 and backing plate fabrication hole 15, the heat that rotor produces is taken away in the process apoplexy of exhausting, thus reduce the temperature rise of rotor.
After rotor windings 400 coiling is good, coil 40 has certain degree of flicking, therefore need, between two adjacent coils 40 and along the length direction of rotor core 100, several wire pressing blocks 41 are installed coil 40 is compressed, in case spline when high speed rotating owing to coil 40 being thrown away under the effect of centrifugal force.Wire pressing block 41 is Y-shaped, the top of this wire pressing block 41 can be pressed on two adjacent coils 40, bottom is inserted in the upper hole of backing plate fabrication hole 15, in the bottom hole of backing plate fabrication hole 15, corresponding wire pressing block 41 puts into backing plate 42, by bolt 43 and packing ring 44 are inserted from the upper surface of wire pressing block 41 screw hole hanging backing plate 42, achieve wire pressing block 41 fixing (see Fig. 4).
The utility model, owing to adding the degree of depth of the bottom hole of backing plate fabrication hole 15, makes bolt 43 can not encounter rotor core 100, can not hang again the screw hole less than backing plate 42, too increase ventilation quantity simultaneously.Best embodiment is the degree of depth 1 ~ 2mm that the degree of depth of the bottom hole of backing plate fabrication hole 15 is greater than upper hole.
6 pole formula rotor cores of generator of the present utility model, owing to offering a long waist shaped ventilation hole on each magnetic pole of rotor core, add the draught capacity of rotor core, the temperature rise of generator amature is declined, thus improve rotor temperature rise, improve generator performance, solve the ventilating problem of rotor core, finally solve original stator and rotor temperature rise imbalance problem, reach lifting generator power.In addition, owing to changing shape and the degree of depth of original backing plate fabrication hole, the draught capacity of rotor core is more strengthened, more all even smooth and easy; Meanwhile, the line ball backing plate of more convenient installation rotor, thus improve production efficiency, reduce production cost.
Above embodiment is only for illustration of the utility model, but not to restriction of the present utility model, person skilled in the relevant technique, when not departing from spirit and scope of the present utility model, various conversion or modification can also be made, therefore all equivalent technical schemes also should belong to category of the present utility model, should be limited by each claim.
Claims (3)
1. 6 pole formula rotor cores of a generator, laminated and cylindrical structure by the punching of multi-disc disk rotor, the end face central authorities of described rotor core offer a shaft hole, radially in uniform way in the peripheral surface of described rotor core be provided with 6 grooves parallel with described shaft hole, a magnetic pole is formed between every two adjacent grooves, the bottom surface central authorities of each groove also offer a backing plate fabrication hole, it is characterized in that
The end face of described rotor core offers a ventilation hole parallel with described shaft hole respectively in the position of each magnetic pole;
The shape of described backing plate fabrication hole is the inverted T-shaped that the width of bottom hole width that is large, upper hole is little, and the degree of depth of bottom hole is greater than the degree of depth of upper hole.
2. 6 pole formula rotor cores of generator according to claim 1, it is characterized in that, the shape of described ventilation hole is long waist shaped, and the center line of the center line of each ventilation hole magnetic pole corresponding with it is overlapping.
3. 6 pole formula rotor cores of generator according to claim 1, is characterized in that, the degree of depth of the bottom hole of described backing plate fabrication hole is greater than the degree of depth 1 ~ 2mm of upper hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520539664.5U CN204794415U (en) | 2015-07-23 | 2015-07-23 | 6 utmost point formula rotor core of generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520539664.5U CN204794415U (en) | 2015-07-23 | 2015-07-23 | 6 utmost point formula rotor core of generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204794415U true CN204794415U (en) | 2015-11-18 |
Family
ID=54534392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520539664.5U Active CN204794415U (en) | 2015-07-23 | 2015-07-23 | 6 utmost point formula rotor core of generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204794415U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108418379A (en) * | 2018-05-03 | 2018-08-17 | 湖州越球电机有限公司 | A kind of BLDC motors of low cost |
| CN109245472A (en) * | 2018-08-17 | 2019-01-18 | 安徽德科电气科技有限公司 | A kind of novel three-phase synchronous high-voltage generator field spider field structure |
| CN111799910A (en) * | 2020-06-11 | 2020-10-20 | 上海马拉松·革新电气有限公司 | Method for setting rotor heat dissipation structure of salient pole type generator |
| CN114337005A (en) * | 2022-01-06 | 2022-04-12 | 哈尔滨电机厂有限责任公司 | Novel single-Dewar efficient motor structure |
| EP4203248A1 (en) * | 2021-12-23 | 2023-06-28 | Valeo eAutomotive Germany GmbH | Welding of a stack of laminations for a rotor |
-
2015
- 2015-07-23 CN CN201520539664.5U patent/CN204794415U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108418379A (en) * | 2018-05-03 | 2018-08-17 | 湖州越球电机有限公司 | A kind of BLDC motors of low cost |
| CN108418379B (en) * | 2018-05-03 | 2024-03-01 | 湖州越球电机有限公司 | Low-cost BLDC motor |
| CN109245472A (en) * | 2018-08-17 | 2019-01-18 | 安徽德科电气科技有限公司 | A kind of novel three-phase synchronous high-voltage generator field spider field structure |
| CN111799910A (en) * | 2020-06-11 | 2020-10-20 | 上海马拉松·革新电气有限公司 | Method for setting rotor heat dissipation structure of salient pole type generator |
| EP4203248A1 (en) * | 2021-12-23 | 2023-06-28 | Valeo eAutomotive Germany GmbH | Welding of a stack of laminations for a rotor |
| CN114337005A (en) * | 2022-01-06 | 2022-04-12 | 哈尔滨电机厂有限责任公司 | Novel single-Dewar efficient motor structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204794415U (en) | 6 utmost point formula rotor core of generator | |
| CN1773817A (en) | AC plate type non-core permasyn motor based on Halbach array | |
| CN109194082B (en) | Amorphous alloy axial flux motor with wide field weakening speed expansion and low rotor loss | |
| CN103236771A (en) | Asynchronous starting rotor of half-magnetic-sheet permanent-magnetic synchronous motor | |
| CN202405896U (en) | Rotor core and high-efficiency variable-frequency speed regulation permanent magnet synchronous motor with same | |
| CN2850109Y (en) | AC disk type iron core-less permanent-magnet synchronous motor based on Halbach array | |
| CN105846580A (en) | Surface-mounted permanent magnet motor structure | |
| CN203193469U (en) | Coreless disc-type direct-current brushless motor | |
| CN101494395A (en) | Permanent magnet motor of stator | |
| CN206195496U (en) | Rotor and permanent -magnet machine | |
| CN107508444A (en) | Electric automobile magnetic-grid-type doubly salient permanent magnet motor | |
| CN102790455A (en) | Rotor core and high-efficiency frequency conversion speed regulating permanent magnet synchronous motor | |
| CN200987085Y (en) | High speed permanent-magnetic motor generator | |
| CN114421654B (en) | Transverse magnetic flux C-type embedded stator permanent magnet brushless wind driven generator | |
| CN202121470U (en) | Quadrupole embedded magnet permanent-magnet synchronous motor used for refrigeration compressor | |
| CN206332513U (en) | A kind of modular Thee-phase alternating current permanent-magnetic frequency control motor | |
| CN201365146Y (en) | Permanent-magnet machine with permanent magnet embedded on stator and projecting pole rotor | |
| CN202111543U (en) | Salient pole type rotor iron core of three-phase brushless alternating-current generator | |
| CN104158367B (en) | A kind of threephase asynchronous | |
| CN209329935U (en) | The compound outer rotor generator of disk target formula | |
| CN204465163U (en) | A kind of ceiling fan stator of low energy consumption | |
| CN103401357B (en) | 60MW brushless excitation steam turbine generator | |
| CN209329808U (en) | The compound internal rotor generator of disk target formula | |
| CN206283341U (en) | The rotor sheet of permanent magnet motor of work frequency conversion performance is taken into account with self-starting ability | |
| CN110784083A (en) | Novel iron core structure of double-stator asynchronous starting permanent magnet synchronous motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |