CN201204526Y - Squirrel-cage structure for high-speed motor - Google Patents
Squirrel-cage structure for high-speed motor Download PDFInfo
- Publication number
- CN201204526Y CN201204526Y CNU2008200942563U CN200820094256U CN201204526Y CN 201204526 Y CN201204526 Y CN 201204526Y CN U2008200942563 U CNU2008200942563 U CN U2008200942563U CN 200820094256 U CN200820094256 U CN 200820094256U CN 201204526 Y CN201204526 Y CN 201204526Y
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- Prior art keywords
- rotor
- cage
- double
- squirrel
- wedge
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Abstract
A high speed motor rotor cage structure comprises a motor rotor and a stator sleeved out of the rotor, wherein the rotor is integrally connected with a rotating shaft. The outer surface of the rotor is axially provided with a plurality of parallel strip recesses, wherein the cross section of the recess is double-wedge. A squirrel-cage bus bar is embedded in the double-wedge recess. An angle between a lower side surface and a bottom of the double-wedge recess is no more than 60 degrees. The squirrel-cage bus bar is the pure copper strip. A gap between the pure copper strip and the double-wedge recess is sealed by silver brazing. The high speed motor adopting the structure of this utility model is capable of bearing the higher current intensity and has good heat dispersion because the conductance of the copper rotor cage is excellent. And the output power of this utility model is much higher than that of the aluminum alloy rotor cage. This utility model is suitable for the demand of higher rotating speed.
Description
Technical field
The present invention relates to high-speed electric expreess locomotive, especially refer to the copper cage-shaped structure of high-speed electric expreess locomotive.
Background technology
The high-speed electric expreess locomotive mouse cage of variable frequency power supply control, its rotating speed is directly proportional with frequency, and the frequency range of frequency converter is very big, from several hertz-several ten thousand hertz, even the hundreds of thousands hertz.The frequency of supposing frequency converter is 1000Hz, and then rotating speed of motor should be: ten thousand rev/mins of 60 * 1000=6, the rest may be inferred.
The related high-speed electric expreess locomotive mouse cage of this patent is to be subjected to frequency converter directly actuated, therefore, its rotating speed generally all surpasses 100,000 rev/mins when real work, maximum speed requires to reach 300,000 rev/mins, concerning frequency converter, its working range is very narrow, but then requires very high to rotor, the especially design to the motor mouse cage of motor.
By the squirrel-cage motor that national standard is recommended, be under the frequency of the conventional power supply 50Hz of industry, to work, the nominal speed of monophase machine is up to 50 * 60=3000 rev/min.But, be generally 2800 rev/mins of ability outputting powers owing to have asynchronous loss between rotor and stator.The mouse cage of this kind motor builds up the cylindricality of certain size with special-purpose silicon steel sheet, and silicon steel sheet dashes the breach that can embed the squirrel-cage bus.When being connected with alternating current in the coil, then can produce alternating magnetic field.Prior motor as shown in Figure 1 and Figure 2, silicon steel sheet is fixedlyed connected with the motor pedestal with the parts that are wound with coil, as the stator 1 of motor, and the silicon steel sheet group 3 that mouse cage 2 is housed is fitted together as rotor and rotating shaft 4.The material of mouse cage is with electric conductivity aluminium alloy cast preferably.The poor electric conductivity of this squirrel-cage motor can not be born higher current strength, and thermal diffusivity is bad, and power output is lower.
The utility model content
The utility model is to provide a kind of high-speed electric expreess locomotive cage-shaped structure in order to solve above deficiency.
In order to reach above purpose, this high-speed electric expreess locomotive cage-shaped structure, comprise rotor and be placed in the outer stator of rotor, its rotor also is connected with the rotating shaft one, described rotor outer surface upper edge is axially arranged with several parallel strip grooves, it is characterized in that: the cross section of described groove is the narrow double-wedge in the wide centre of opening and bottom, is inlaid with the squirrel-cage bus in the groove.
The medial surface of double-wedge groove and the angle between the bottom surface are not more than 60 degree.
The squirrel-cage bus is made for the fine copper plate, and the width of conduction fine copper bar is corresponding with the width of described double-wedge groove, and the breach available silver sealing mouth between conduction fine copper bar and double-wedge groove, and the purity of fine copper bar is high more, and electric conductivity is good more.
Adopt the high-speed electric expreess locomotive of the utility model structure, good because of copper mouse cage conduction, can bear higher current strength, perfect heat-dissipating, its power output will improve much than aluminium alloy mouse cage.Simultaneously, this groove design can be compressed into the embedding of fine copper strip adoption vacuum hotpressing method more easily, adds with silver soldering to seal and can further implement fine finishining to the copper mouse cage, can adapt to rotation requirement more at a high speed.
Description of drawings
Fig. 1 is existing electric machine structure cutaway view.
Fig. 2 is existing motor rotor construction schematic diagram.
Fig. 3 is that fine copper plate stamping-out of the present utility model launches schematic diagram.
Fig. 4 is that the A-A of Fig. 3 is to cutaway view.
Fig. 5 is the utility model copper cage-shaped structure schematic diagram.
Fig. 6 is the utility model rotor schematic diagram.
Fig. 7 is the B portion enlarged drawing of Fig. 5.
Embodiment
In order to sharpen understanding, the utility model is further described below in conjunction with the accompanying drawing and the mouse cage course of processing.
Earlier fine copper plate (tough cathode, purity reaches 99.99%) is made into copper coin net 10 as shown in Figure 3, Figure 4.Wherein L be the fine copper mouse cage length (unit: millimeter, down with), 1 is brace length, π D is the girth of rotor, h is the fine copper plate thickness, m
1Be fine copper bar 11 width.
Identical with prior art, the rotor of being made up of the silicon steel sheet group 20 is connected with rotating shaft 30 one, as Fig. 5, Fig. 6, shown in Figure 7, difference is, the groove 21 both sides sidewalls that rotor 20 peripheries are provided with protrude in opposite directions, form bottom land and the narrow double-wedge groove in the wide slightly centre of notch, promptly the cross section of groove is double-wedge.Specifically, the seamed edge 22 in the middle of the double-wedge groove is that medial surface and groove floor form sharp angle with the joint face on groove base, and this angle is not more than 60 degree generally speaking, and α is 60 degree in this practical example.
With copper coin net 10 to curve diameter be the cylindric of D, and be enclosed within on the iron and steel rotor, make each fine copper bar 11 corresponding with double-wedge groove 21 positions of rotor, adopt the method for vacuum hotpressing, fine copper bar 11 is pressed in the double-wedge groove 21 of rotor, breach between fine copper bar and double-wedge groove seals with silver soldering, will carry out fine finishining to the rotor that is inlaid with the copper mouse cage at last, makes the rotor of high speed rotating.
L=40 in this practical example, l=4, D=19, h=3.2, M=2.2, m
1=1.8, m
2=2.2, S
1=0.9, α=60 °, h=S+0.8～1.2.
With the motor that the method is made, rotating speed can be up to 12.5 ten thousand rev/mins, and can move stably in a long term.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, its framework form can be flexible and changeable, can the subseries product.Just make some simple deduction or replace, all should be considered as belonging to the scope of patent protection that the utility model is determined by claims of being submitted to.
Claims (3)
1, a kind of high-speed electric expreess locomotive cage-shaped structure, comprise rotor and be placed in the outer stator of rotor, its rotor also is connected with the rotating shaft one, described rotor outer surface upper edge is axially arranged with several parallel strip grooves, it is characterized in that: the cross section of described groove is the narrow double-wedge in the wide centre of opening and bottom, is inlaid with the squirrel-cage bus in the groove.
2, high-speed electric expreess locomotive cage-shaped structure according to claim 1 is characterized in that: the medial surface of described double-wedge groove and the angle between the bottom surface are not more than 60 degree.
3, high-speed electric expreess locomotive cage-shaped structure according to claim 1 is characterized in that: described squirrel-cage bus is the fine copper bar, and the breach between fine copper bar and double-wedge groove seals with silver soldering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200942563U CN201204526Y (en) | 2008-05-30 | 2008-05-30 | Squirrel-cage structure for high-speed motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200942563U CN201204526Y (en) | 2008-05-30 | 2008-05-30 | Squirrel-cage structure for high-speed motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201204526Y true CN201204526Y (en) | 2009-03-04 |
Family
ID=40426841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200942563U Expired - Lifetime CN201204526Y (en) | 2008-05-30 | 2008-05-30 | Squirrel-cage structure for high-speed motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201204526Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107112870A (en) * | 2015-01-19 | 2017-08-29 | 三菱电机株式会社 | The manufacture method of cage induction motor and cage induction motor |
| CN112994388A (en) * | 2021-03-24 | 2021-06-18 | 横川机器人（深圳）有限公司 | Linear rotation two-degree-of-freedom motor |
-
2008
- 2008-05-30 CN CNU2008200942563U patent/CN201204526Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107112870A (en) * | 2015-01-19 | 2017-08-29 | 三菱电机株式会社 | The manufacture method of cage induction motor and cage induction motor |
| CN112994388A (en) * | 2021-03-24 | 2021-06-18 | 横川机器人（深圳）有限公司 | Linear rotation two-degree-of-freedom motor |
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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: SHENZHEN SUFENG TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: LI XIAOLIN Effective date: 20101014 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 518126 2/F, HONGSHAN BUILDING, XICHENG INDUSTRIAL AREA, XIXIANG, BAOAN DISTRICT, SHENZHEN CITY, GUANGDONG PROVINCE TO: 518126 EAST 2ND BUILDING, HONGSHAN BUILDING, XICHENG INDUSTRIAL AREA, XIXIANG SUBDISTRICT, BAOAN DISTRICT, SHENZHEN CITY |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20101014 Address after: 518126, Shenzhen, Baoan District Xixiang Street West Industrial Zone Hongshan building, east two floor Patentee after: ShenZhen SuFeng Technology Co., Ltd. Address before: Two, building 518126, Hongshan building, Xicheng Industrial Zone, Baoan District, Shenzhen, Guangdong, Xixiang Patentee before: Li Xiaolin |
|
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 518126, Shenzhen, Guangdong province Baoan District Xixiang Street Xicheng Industrial Zone Hongshan building east two floor Patentee after: Shenzhen speed Polytron Technologies Inc Address before: 518126, Shenzhen, Baoan District Xixiang Street West Industrial Zone Hongshan building, east two floor Patentee before: ShenZhen SuFeng Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090304 |