CN101699723A - Large and medium-sized high-speed motor - Google Patents
Large and medium-sized high-speed motor Download PDFInfo
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- CN101699723A CN101699723A CN200910213036A CN200910213036A CN101699723A CN 101699723 A CN101699723 A CN 101699723A CN 200910213036 A CN200910213036 A CN 200910213036A CN 200910213036 A CN200910213036 A CN 200910213036A CN 101699723 A CN101699723 A CN 101699723A
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Abstract
The invention relates to a large and medium-sized high-speed motor, comprising a machine base, and a stator and a rotor which are arranged in the machine base; two air inlets and two air outlets are arranged at the top part of the machine base, two air outlets are respectively arranged at two ends of the machine base and are axially arranged right above the stator side by side, clapboards are respectively connected at two sides of the two air outlets in the machine base to form two clapboard groups, the outer edge of the clapboard is connected with the inner wall of the machine base and the inner hole thereof is connected with the outer wall of the stator, air holes with corresponding position are arranged on the clapboards, and air pipes are arranged between two clapboard groups to communicate the air holes with corresponding position. An air channel structure in the invention has high cooling efficiency of the motor, so as to greatly reduce temperature rise of the motor. In addition, a conventional air hole is omitted on a rotor stamping sheet, so as to lead the rotor stamping sheet to have high yield strength and meet requirement of mechanical performance of the rotor stamping sheet under a high-speed condition.
Description
Technical field
The present invention relates to motor, relate in particular to big-and-middle-sized high-speed electric expreess locomotive.
Background technology
Big-and-middle-sized high-speed electric expreess locomotive is widely used in water pump class motor and tests with on the dragging motor, and major part is squirrel-cage motor or the two poles of the earth wound motor.The characteristics of this type of motor are the rotating speed height, and rotating speed is near 3000r/min (50Hz), so the requirement of strength of countershaft and rotor punching is very high.
The structure of existing big-and-middle-sized high-speed electric expreess locomotive as shown in Figure 1, comprise support 107 and be installed on stator 103 and rotor 104 in the support 107, support 107 tops offer 101,106 and two air outlets 102,105 of two air inlets, two air inlets 101,106 are opened in support 107 two ends respectively, two air outlets 102,105 axially are opened in directly over the stator 103 side by side, and whole motor is two wind path footpath axial ventilation structures.With the wind path that forms between one group of air inlet 101 among Fig. 1 and the air outlet 102 is the example explanation, and when motor external refrigeration blower fan or the running of motor internal aerofoil fan, cold air enters motor internal from air inlet 101, brushes the end of stator 103 and rotor 104.Wherein a wind path I brushes rotor 104 surfaces through rotor air gap 108, the heat of rotor 104 is delivered to air outlet 102 through stator air duct 109 discharge.Another wind path II directly discharges by air outlet 102.The wind path that forms between another group air inlet 106 and the air outlet 105 is same as described above.The rotor punching structure of existing big-and-middle-sized high-speed electric expreess locomotive has radiating groove 203 as shown in Figure 2 on the rotor punching 201, the center of rotor punching 201 has shaft hole 204, particularly also has a plurality of axial ventilation holes 202 on the rotor punching 201.
When the rotating speed of bipolar machine is higher, reach 3600r/min (60Hz) and when above, following problem can appear in above-mentioned big-and-middle-sized high-speed electric expreess locomotive as rotating speed: the one, the ventilation effect of motor is not good under high rotating speed, causes the temperature rise of motor too high; The 2nd, can't meet the demands in the mechanical strength of high rotating speed lower rotor part punching, very easily deform, " surrender " phenomenon such as disintegration.
The content of invention
At the existing problem that the temperature rise under high speed conditions of big-and-middle-sized high-speed electric expreess locomotive is higher, " surrender " phenomenon easily takes place rotor punching, the applicant has carried out research and has improved, another kind of big-and-middle-sized high-speed electric expreess locomotive is provided, not only can reduces electric machine temperature rise, and can improve the mechanical strength of rotor punching.
Technical scheme of the present invention is as follows:
A kind of big-and-middle-sized high-speed electric expreess locomotive, comprise support and be installed on support interior stator and rotor, the support top offers two air inlets and two air outlets, two air outlets are opened in the support two ends respectively, two air outlets axially are opened in directly over the stator side by side, two air outlet both sides in described support are connected with dividing plate respectively, constitute two dividing plate groups, the outer of described dividing plate is connected with inboard wall of base, its endoporus is connected with the stator outer wall, the air-guiding hole that the position correspondence is arranged on the described dividing plate has guide duct that the air-guiding hole of correspondence position is communicated with between per two dividing plate groups.
Described rotor is overrided to form by rotor punching, has radiating groove on the rotor punching, and the center of rotor punching has shaft hole.
Useful technique effect of the present invention is:
Wind path structure of the present invention can reduce electric machine temperature rise greatly to the cooling effectiveness of motor higher (from invention architectural feature supplementary notes reason, why can reduce electric machine temperature rise).And cancelled conventional ventilation hole on the rotor punching, and make the yield strength of rotor punching higher, satisfy under the high speed conditions requirement to the rotor punching mechanical performance.
Description of drawings
Fig. 1 is the structural representation of existing big-and-middle-sized high-speed electric expreess locomotive.
Fig. 2 is the structural representation of existing rotor punching.
Fig. 3 is a structural representation of the present invention.
Fig. 4 is the structural representation of rotor punching of the present invention.
Fig. 5 is the structural representation of the dividing plate of invention.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described further.
Fig. 3 shows structure of the present invention.As shown in Figure 3, the present invention includes support 311 and be installed on stator 313 and rotor 312 in the support 311, support 311 tops offer first air inlet 301, second air inlet 310 and first air outlet 304, second air outlet 307, first air inlet 301, second air inlet 310 is opened in support 311 two ends respectively, first air outlet 304, second air outlet 307 axially is opened in directly over the stator 313 side by side, first air outlet 304 in described support 311, second air outlet, 307 both sides are connected with dividing plate respectively, have four (two groups) dividing plates: dividing plate 302 and dividing plate 305, dividing plate 306 and dividing plate 309.Seeing Fig. 5, is example with dividing plate 302, and the outer 501 of dividing plate 302 is connected with support 311 inwalls, and its endoporus 502 is connected with stator 313 outer walls, has air-guiding hole 503 on the dividing plate 302.The structure of dividing plate 305, dividing plate 306 and dividing plate 309 is identical with dividing plate 302 with connected mode.See Fig. 3, have the air-guiding hole 316 and the air-guiding hole 317 of position correspondence on the described dividing plate, and air-guiding hole 318 and air-guiding hole 319, there is guide duct 303 that the air-guiding hole 316 and the air-guiding hole 317 of correspondence position are communicated with between dividing plate 302 and the dividing plate 305, has guide duct 308 that the air-guiding hole 318 and the air-guiding hole 319 of correspondence position are communicated with between dividing plate 306 and the dividing plate 309.
Arrow among Fig. 3 is represented the wind path trend in the present invention.Wind path with formation between first air inlet 301 among Fig. 3 and first air outlet 304 is the example explanation, when motor external refrigeration blower fan or the running of motor internal aerofoil fan, cooling air enters in the present invention from first air inlet 301, brushes the end of stator 313 and rotor 312.Wherein a wind path I brushes rotor 312 surfaces through rotor air gap 314, the heat of rotor 312 is delivered to first air outlet 304 through stator air duct 315 discharge.Another wind path II enters guide duct 303 through air-guiding hole 316, come out from air-guiding hole 317 again, be blown into stator air duct 315, reverse once more by rotor air gap 314 then and enter stator air duct 315, discharge by first air outlet 304 then, so wind path II has cooled off the inside of stator 313 and the surface of stator 313 and rotor 312.Greatly reduce the internal heat of motor like this.The wind path of second air inlet 310 and second air outlet 307 moves towards same as described above among Fig. 3.
Fig. 4 shows the structure of rotor punching of the present invention.Rotor 312 among Fig. 3 is overrided to form by rotor punching 401 as shown in Figure 4, has a plurality of radiating grooves 402 on the rotor punching 401, and 64 radiating grooves are arranged among Fig. 4.The center of rotor punching 401 has shaft hole 403, by shaft hole 403 rotor punching 401 is piled up to be assembled in the rotating shaft, and the radiating groove 402 on each rotor punching 401 is aimed at mutually, and rotor punching 401 is no key interference fit with rotating shaft.The heat dissipation channel that the heat that this structure can be distributed rotor is formed by above-mentioned radiating groove 402 drains in the air outside the rotor, and owing to cancelled the ventilation hole 202 of routine among Fig. 2 on the rotor punching 401, therefore the yield strength of rotor punching 401 is higher, can satisfy under the high speed conditions requirement to the rotor punching mechanical performance.
Above-described only is preferred implementation of the present invention, the invention is not restricted to above embodiment.Be appreciated that those skilled in the art under the prerequisite that does not break away from spirit of the present invention and design, can make other improvement and variation.
Claims (2)
1. big-and-middle-sized high-speed electric expreess locomotive, comprise support and be installed on support interior stator and rotor, the support top offers two air inlets and two air outlets, two air outlets are opened in the support two ends respectively, two air outlets axially are opened in directly over the stator side by side, it is characterized in that: two air outlet both sides in described support are connected with dividing plate respectively, constitute two dividing plate groups, the outer of described dividing plate is connected with inboard wall of base, its endoporus is connected with the stator outer wall, the air-guiding hole that the position correspondence is arranged on the described dividing plate has guide duct that the air-guiding hole of correspondence position is communicated with between per two dividing plate groups.
2. according to the described big-and-middle-sized high-speed electric expreess locomotive of claim 1, it is characterized in that: described rotor is overrided to form by rotor punching, has radiating groove on the rotor punching, and the center of rotor punching has shaft hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910213036A CN101699723A (en) | 2009-11-10 | 2009-11-10 | Large and medium-sized high-speed motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910213036A CN101699723A (en) | 2009-11-10 | 2009-11-10 | Large and medium-sized high-speed motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101699723A true CN101699723A (en) | 2010-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910213036A Pending CN101699723A (en) | 2009-11-10 | 2009-11-10 | Large and medium-sized high-speed motor |
Country Status (1)
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| CN (1) | CN101699723A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106816974A (en) * | 2017-02-27 | 2017-06-09 | 百恒石油装备有限公司 | A kind of slip frequency-conversion and speed-regulation motor high for driving beam pumping unit |
| CN107237685A (en) * | 2016-03-28 | 2017-10-10 | 长城汽车股份有限公司 | Supercharger assembly and the gas handling system with it |
| CN110474458A (en) * | 2019-09-24 | 2019-11-19 | 上海电气集团上海电机厂有限公司 | A kind of rotor punching wind path structure |
| JP2019213282A (en) * | 2018-05-31 | 2019-12-12 | 東芝三菱電機産業システム株式会社 | Dynamo-electric machine and stator cooling structure |
-
2009
- 2009-11-10 CN CN200910213036A patent/CN101699723A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107237685A (en) * | 2016-03-28 | 2017-10-10 | 长城汽车股份有限公司 | Supercharger assembly and the gas handling system with it |
| CN106816974A (en) * | 2017-02-27 | 2017-06-09 | 百恒石油装备有限公司 | A kind of slip frequency-conversion and speed-regulation motor high for driving beam pumping unit |
| JP2019213282A (en) * | 2018-05-31 | 2019-12-12 | 東芝三菱電機産業システム株式会社 | Dynamo-electric machine and stator cooling structure |
| CN110474458A (en) * | 2019-09-24 | 2019-11-19 | 上海电气集团上海电机厂有限公司 | A kind of rotor punching wind path structure |
| CN110474458B (en) * | 2019-09-24 | 2024-05-14 | 上海电气集团上海电机厂有限公司 | Rotor punching sheet air path structure |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 214131 No. 777 East high wave road, Jiangsu, Wuxi Applicant after: SEC Electric Machinery Co., Ltd. Address before: 214131 No. 2, Da Tong Road, Binhu Development Zone, Jiangsu, Wuxi Applicant before: Wuxi HEC Electric Machinery Co., Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: WUXI HEC ELECTRIC MACHINERY CO., LTD. TO: SEC ELECTRIC MACHINERY CO., LTD. |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100428 |