CN2814785Y - High starting torque big and medium squirrel cage asynchronous motor - Google Patents
High starting torque big and medium squirrel cage asynchronous motor Download PDFInfo
- Publication number
- CN2814785Y CN2814785Y CN 200520017424 CN200520017424U CN2814785Y CN 2814785 Y CN2814785 Y CN 2814785Y CN 200520017424 CN200520017424 CN 200520017424 CN 200520017424 U CN200520017424 U CN 200520017424U CN 2814785 Y CN2814785 Y CN 2814785Y
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- CN
- China
- Prior art keywords
- sliver
- guide strips
- starting torque
- rotor
- asynchronous motor
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- Expired - Lifetime
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Abstract
The utility model relates to a big and medium squirrel cage type asynchronous motor with high starting torque, which is mainly composed of a rotor, a stator, a machine seat, an end cover, a bearing cover, a bottom plate, upper guide strips, lower guide strips and an end ring. The utility model is characterized in that the sections of the upper guide strips are made into trapezoids; the sections of the lower guide strips are made into rectangles. The upper guide strips and the lower guide strips are combined together and are inserted into all corresponding grooves of a rotor iron core, after all upper guide strips and all lower guide strips of the rotor which are distributed along a circumference are inserted, end rings are arranged in both sides of the lower guide strips and are welded firmly, the exposed parts of the combination parts between the upper guide strips and the lower guide strips are welded firmly, a big and medium squirrel cage type asynchronous motor with high starting torque is formed, and the purpose of the increase of the starting torque of the motor is reached. The utility model is suitable for places which request high starting torque.
Description
Technical field:
The utility model is the new structure of squirrel-cage asynchronous motor, relates to the big-and-middle-sized squirrel-cage asynchronous motor of a kind of high starting torque.
Background technology:
In big electrical engineering, a kind of basic reason that restricts big-and-middle-sized squirrel-cage asynchronous motor development, be exactly because this motor starting poor performance, starting torque are low, the accident that frequent generation can't be started, domestic and international over the years motor expert to this, all pay and much make great efforts to study and improve, but do not have fine addressing this problem so far.
Summary of the invention:
In order to overcome the low shortcoming of this starting torque of big-and-middle-sized squirrel-cage asynchronous motor, solve the difficult problem of starting difficulty, the utility model designs a kind of novel cage-shaped structure, and conversion fraction cage bar material, so as to improving starting torque, thoroughly solve the low shortcoming of starting torque of big-and-middle-sized squirrel-cage asynchronous motor, capture the difficult problem of starting difficulty.
The utility model is that the technical scheme that this difficult problem of solution is adopted is: by the big-and-middle-sized squirrel-cage asynchronous motor of a kind of high starting torque shown in the accompanying drawing 1, be made up of rotor 1, stator 2, support 3, end cap 4, bearing pedestal 5, base plate 6, the last sliver 7 that reaches accompanying drawing 2, following sliver 8, end ring 9 etc.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.And feature of the present utility model is, rotor bar is resolved into as last sliver shown in the accompanying drawing 27 and following sliver 8, and 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 2 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 2, to descend sliver 8 and end ring 9 scarfwelds firm with scolder, to go up sliver 7 again and weld (as the ab line segment of accompanying drawing 2) with scolder, 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, but 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, is the new structure that kills two birds with one stone.
Description of drawings
Accompanying drawing 1 is the big-and-middle-sized squirrel-cage asynchronous motor overall structure of high starting torque.
Accompanying drawing 2 is relevant cage-shaped structure enlarged drawings of accompanying drawing 1 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 shown in the accompanying drawing 2A-A section, assembly is 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 2, to descend sliver 8 and end ring 9 scarfwelds firm with scolder, to go up sliver 7 again welds with scolder with the exposed parts at following sliver 8 places of combining, constitute the big-and-middle-sized squirrel-cage asynchronous motor of high starting torque, overcome the low shortcoming of starting torque, reached the purpose of high starting performance.
Claims (1)
1, the big-and-middle-sized squirrel-cage asynchronous motor of a kind of high starting torque, by rotor (1), stator (2), support (3), end cap (4), bearing pedestal (5), base plate (6), last sliver (7), following sliver (8), end ring (9) is formed, it is characterized in that: go up sliver (7) and make the trapezoid cross section, following sliver (8) is made the square-section, sliver lumps together up and down, assembly is in the rotor core respective grooves, treat that rotor is by all of circle distribution up and down after the whole assemblies completions of sliver, with end ring (9) pack into following sliver (8) 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520017424 CN2814785Y (en) | 2005-04-18 | 2005-04-18 | High starting torque big and medium squirrel cage asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520017424 CN2814785Y (en) | 2005-04-18 | 2005-04-18 | High starting torque big and medium squirrel cage asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2814785Y true CN2814785Y (en) | 2006-09-06 |
Family
ID=36949871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520017424 Expired - Lifetime CN2814785Y (en) | 2005-04-18 | 2005-04-18 | High starting torque big and medium squirrel cage asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2814785Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102263466A (en) * | 2010-05-28 | 2011-11-30 | 通用电气公司 | Electric machine rotor bar and method of making same |
| CN103765738A (en) * | 2011-08-30 | 2014-04-30 | 西门子工业公司 | Induction machine rotor slot and forming method |
-
2005
- 2005-04-18 CN CN 200520017424 patent/CN2814785Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102263466A (en) * | 2010-05-28 | 2011-11-30 | 通用电气公司 | Electric machine rotor bar and method of making same |
| CN102263466B (en) * | 2010-05-28 | 2016-01-06 | 通用电气公司 | Motor rotor conducting bar and manufacture method thereof |
| US9438077B2 (en) | 2010-05-28 | 2016-09-06 | James P. Alexander | Electric machine rotor bar and method of making same |
| CN103765738A (en) * | 2011-08-30 | 2014-04-30 | 西门子工业公司 | Induction machine rotor slot and forming method |
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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: HAERBIN TONGNENG ELECTRICAL APPLIANCE CO., LTD. Free format text: FORMER OWNER: WANG SHENGWU Effective date: 20100521 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 150060 NO.17 JINGBO ROAD, JIZHONG DISTRICT, HAPING ROAD, HARBIN HIGH-TECH INDUSTRIAL DEVELOPMENT AREA, HEILONGJIANG PROVINCE TONGNENG COMPANY TO: 150060 HAERBIN TONGNENG ELECTRICAL STOCK CO., LTD., NO.17, JIGNBO ROAD, HAPING ROAD JIZHONG ZONE, HAERBIN HIGH AND NEW TECHNOLOGY INDUSTRY DEVELOPMENT ZONE, HEILONGJIANG |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100521 Address after: 150060 Heilongjiang Province, Harbin high tech Industrial Development Zone haping Road District No. 17 Harbin Road, Tong Jingbo electrical Limited by Share Ltd Patentee after: Harbin Tong Neng Electric Appliance Co., Ltd. Address before: 150060 Heilongjiang city of Harbin province high tech Industrial Development Zone haping Road District Road No. 17 Tong company Jingbo Patentee before: Wang Shengwu |
|
| ASS | Succession or assignment of patent right |
Owner name: HARBIN TONGNENG ELECTRIC JOINT STOCK CO., LTD. Free format text: FORMER OWNER: HARBIN TONGNENG ELECTRIC APPLIANCE CO., LTD. Effective date: 20100825 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 150060 HARBIN TONGNENG ELECTRIC JOINT STOCK CO., LTD., NO.17, JINGPO ROAD, CONCENTRATION AREA, HAPING ROAD, HARBIN HIGH TECHNOLOGY INDUSTRIAL DEVELOPMENT ZONE, HEILONGJIANG PROVINCE TO: 150060 HARBIN TONGNENG ELECTRIC JOINT STOCK CO., LTD., NO.17, JINGPO ROAD, CONCENTRATION AREA, HAPING ROAD, HARBIN ECONOMIC DEVELOPMENT ZONE, HEILONGJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100825 Address after: 150060 Heilongjiang Province, Harbin Economic Development Zone haping Road District No. 17 Harbin Road, Tong Jingbo electrical Limited by Share Ltd Patentee after: Harbin Tongneng Electric Co., Ltd. Address before: 150060 Heilongjiang Province, Harbin high tech Industrial Development Zone haping Road District No. 17 Harbin Road, Tong Jingbo electrical Limited by Share Ltd Patentee before: Harbin Tong Neng Electric Appliance Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150418 Granted publication date: 20060906 |