CN1848623A - High starting torque large and middle size squirrel cage asynchronous motor - Google Patents
High starting torque large and middle size squirrel cage asynchronous motor Download PDFInfo
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- CN1848623A CN1848623A CN 200510056600 CN200510056600A CN1848623A CN 1848623 A CN1848623 A CN 1848623A CN 200510056600 CN200510056600 CN 200510056600 CN 200510056600 A CN200510056600 A CN 200510056600A CN 1848623 A CN1848623 A CN 1848623A
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- sliver
- starting torque
- asynchronous motor
- high starting
- big
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Abstract
A squirrel-cage asynchronous motor with high starting torque is featured as using H62 brass to prepare top bar conductor with ladder shaped section, using T2 red copper to prepare bottom bar conductor with rectangular section, combining two said bar conductors then embedding them into corresponding slots on rotator iron core, setting end ring at two sides of bottom bar conductor then welding them together firmly for raising torque of said motor.
Description
Technical field:
The present invention is applicable to big-and-middle-sized squirrel-cage asynchronous motor, can be used for new product manufacturing and old product transformation.
Background technology:
Known big-and-middle-sized squirrel-cage asynchronous motor is simple in structure, cost is low, working service is convenient, therefore obtain very widely using, but compare with wound rotor asynchronous motor, its shortcoming is that this motor starting torque is less, has limited use in many instances.
Summary of the invention:
The objective of the invention is to design a kind of novel cage-shaped structure, and conversion fraction cage bar material, so as to improving starting torque, thoroughly solve the little problem of starting torque of big-and-middle-sized squirrel-cage asynchronous motor, enlarge its range of application significantly.
The object of the present invention is achieved like this:
Its theory structure mainly by the rotor 1 of accompanying drawing one, stator 2, support 3, end cap 4, bearing pedestal 5, base plate 6, and the last sliver 7 of accompanying drawing two, time sliver 8, end ring 9 etc. form.The be born in the year of mouse original structure of cage asynchronous motor of its rotor 1, stator 2, support 3, end cap 4, bearing pedestal 5, base plate 6.
It is characterized in that:
Last sliver 7 is made the trapezoid cross section, and material is H
62Brass; Following sliver 8 is made the square-section, and material is T
2Red copper.And will go up sliver 7 and following sliver 8 lumps together, press shown in the accompanying drawing two A-A sections, assembly is gone in the rotor core respective grooves, all corresponding grooves on the rotor core circumference are all carried out assembly like this, all after the assembly completion, the both sides of 2 end ring 9 being packed to descend into sliver 8 by position shown in the accompanying drawing two, to descend sliver 8 and end ring 9 scarfwelds firm with silver solder (or phos copper), to go up sliver 7 again and weld with silver solder (or phos copper), constitute the big-and-middle-sized squirrel-cage asynchronous motor of high starting torque with the exposed parts at following sliver 8 places of combining.
This mainly be since squirrel-cage asynchronous motor in starting process, the skewness of rotor slot leakage reactance and produce and squeeze the stream effect forces rotor current to pass through from the upper strata of rotor bar.Utilize this principle, known technology is made double-cage rotor, and the cage bar is H for circular, material on this rotor
62Brass, so as to obtaining higher starting resistance, because starting resistance is big, starting torque is just high; And the cage bar is also made circle down, material is T
2Red copper is so as to improving the operational efficiency of motor.
But this double-cage rotor, because the cage bar all is circular, so it is very big to occupy core area, the waste raw material again because last cage bar is circular, almost do not have self to squeeze the stream effect, though so all in all can improve starting torque, but effect is not ideal, and this still more motor rotor needs two cover mouse cage, wastes especially.
People are in order to dwindle motor volume, to save raw material, and all do not produce this double cage motor the present age, and use the single cage rotor of rectangular conductors instead, because the crowded stream effect of rectangular conductors is poorer, so its starting torque more can not meet the demands.
The present invention has avoided two mouse cage slivers just, and to occupy core area big, needs waste problems such as two cover mouse cages, avoided not making full use of the shortcoming of squeezing the stream effect again, absorbed the single cage rotor of rectangular conductors simultaneously and saved raw material, the advantage that volume is little.Because upward sliver 7 of the present invention is trapezoidal, have good crowded stream effect, material makes H into simultaneously
62Brass more can increase starting resistance, and sliver 8 is T down
2Red copper is made the operational efficiency that can improve motor.
Description of drawings
Accompanying drawing one is the big-and-middle-sized squirrel-cage asynchronous motor overall structure of high starting torque.
Accompanying drawing two is relevant cage-shaped structure enlarged drawings of accompanying drawing one rotor 1.
Embodiment:
The present invention mainly by: rotor 1, stator 2, support 3, end cap 4, bearing pedestal 5, base plate 6, go up sliver 7, sliver 8, end ring 9 etc. are formed the original structure of the cage asynchronous motors of all being born in the year of mouse such as its rotor 1, stator 2, support 3, end cap 4, bearing pedestal 5, base plate 6 down.
The present invention makes the trapezoid cross section with last sliver 7, and material is H
62Brass, following sliver 8 is made the square-section, and material is T
2Red copper.To go up sliver 7 and following sliver 8 lumps together, press assembly shown in the accompanying drawing two A-A sections in the corresponding groove of rotor core, treat that rotor is by all of circle distribution up and down after the whole assemblies completions of sliver, the both sides of end ring 9 being packed to descend into sliver 8 by position shown in the accompanying drawing two, to descend sliver 8 and end ring 9 scarfwelds firm with silver solder (or phos copper), to go up sliver 7 again and weld with silver solder (or phos copper), constitute the big-and-middle-sized squirrel-cage asynchronous motor of high starting torque with the exposed parts at following sliver 8 places of combining.
Last sliver 7 is used H
62Brass is made, and following sliver 8 is used T
2Red copper is made, and end ring 9 is used T
2Red copper is made.
Claims (4)
1, the big-and-middle-sized squirrel-cage asynchronous motor of high starting torque is made up of rotor, stator, support, end cap, bearing pedestal, base plate, last sliver, following sliver, end ring.It is characterized in that: go up sliver and make the trapezoid cross section, material is H
62Brass, following sliver is made the square-section, and material is T
2Red copper, sliver lumps together up and down, assembly is gone in the rotor core respective grooves, all corresponding grooves on the rotor core circumference all are performed such assembly, again 2 end ring are packed into following sliver both sides and weld, the exposed parts of sliver junction also welds up and down, constitutes the big-and-middle-sized squirrel-cage asynchronous motor of high starting torque, reaches to improve this motor starting torque purpose.
2, the big-and-middle-sized squirrel-cage asynchronous motor of high starting torque according to claim 1 is characterized in that: going up the sliver material is H
62Brass, following sliver material are T
2Red copper, end ring material are T
2Red copper.
3, the big-and-middle-sized squirrel-cage asynchronous motor of high starting torque according to claim 1 is characterized in that: upward sliver is made trapezoidal, following sliver and is made rectangle.
4, the big-and-middle-sized squirrel-cage asynchronous motor of high starting torque according to claim 1 is characterized in that: pack into end ring and welding of following sliver both sides, exposing partly of sliver junction welds up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510056600 CN1848623A (en) | 2005-04-04 | 2005-04-04 | High starting torque large and middle size squirrel cage asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510056600 CN1848623A (en) | 2005-04-04 | 2005-04-04 | High starting torque large and middle size squirrel cage asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1848623A true CN1848623A (en) | 2006-10-18 |
Family
ID=37078042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510056600 Pending CN1848623A (en) | 2005-04-04 | 2005-04-04 | High starting torque large and middle size squirrel cage asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1848623A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951043A (en) * | 2010-10-15 | 2011-01-19 | 无锡哈电电机有限公司 | End ring structure of squirrel cage rotor |
| CN116054454A (en) * | 2022-12-08 | 2023-05-02 | 淮阴工学院 | High-power-density shaft radial hybrid asynchronous motor |
| CN116260304A (en) * | 2022-12-08 | 2023-06-13 | 淮阴工学院 | High-power-density shaft radial hybrid synchronous motor |
-
2005
- 2005-04-04 CN CN 200510056600 patent/CN1848623A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951043A (en) * | 2010-10-15 | 2011-01-19 | 无锡哈电电机有限公司 | End ring structure of squirrel cage rotor |
| CN116054454A (en) * | 2022-12-08 | 2023-05-02 | 淮阴工学院 | High-power-density shaft radial hybrid asynchronous motor |
| CN116260304A (en) * | 2022-12-08 | 2023-06-13 | 淮阴工学院 | High-power-density shaft radial hybrid synchronous motor |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |