CN200976528Y - Electric motor built-in wind cooling structure - Google Patents
Electric motor built-in wind cooling structure Download PDFInfo
- Publication number
- CN200976528Y CN200976528Y CN 200620165014 CN200620165014U CN200976528Y CN 200976528 Y CN200976528 Y CN 200976528Y CN 200620165014 CN200620165014 CN 200620165014 CN 200620165014 U CN200620165014 U CN 200620165014U CN 200976528 Y CN200976528 Y CN 200976528Y
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- CN
- China
- Prior art keywords
- bearing
- end cover
- wall
- electric motor
- left end
- 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.)
- Expired - Fee Related
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- Motor Or Generator Frames (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The utility model discloses an electric motor built-in air-cooling device, which is composed of a shell, a stator, a rotor, a left end cover, a right end cover, a left bearing, a right bearing, a left pressure cover and a right pressure cover, which together forms the main body of a electric motor. An axial hole is arranged on the wall of the left end cover, and the inner wall of the left end cover is connected with a wind guide cover in axial direction, while an axial hole is also arranged on the wall of the right end cover. The wind guide cover with siphon function can inhale the outside cold air through the axial hole arranged on wall the left end cover to cool down the left bearing with relative stronger calorific power firstly, secondly to cool down the rotor and the right bearing in sequence, finally the cold air flows out through the axial hole that arranged on the wall of the right end cover after heat transmission. The utility model has the advantages of rational temperature cooling sequence and good cooling performance, and is applicable to be the built-in cooling device for the medium and small electric motor.
Description
Technical field
The utility model relates to a kind of motor cooling structure, and more particularly, the utility model relates to the built-in aeration-cooling structure of a kind of motor.
Background technology
Common motor drives corollary equipment with the rotor rotation, and the long-time high speed rotating of motor must cause the bearing heating at armature spindle two ends.Prior art has been taked effective cooling measure to the bearing at armature spindle two ends, and its structure is to be to be provided with axial ventilation hole on the right-hand member tegmental wall at the rear portion of motor, and the right end cap inwall is provided with axial wind scooper.The wind scooper of truncated cone has siphonage, wind scooper is drawn into the ventilation hole that the cold air of outside is provided with from the right-hand member tegmental wall in the motor, the flow direction of cold air is pressed electric motor structure order cooling right bearing, rotor, left bearing, flows out until the axial ventilation hole that is provided with from motor left end tegmental wall.Because there is the motor output shaft end at the left bearing place, it is loaded greater than right bearing, and in like manner, the left bearing caloric value is greater than right bearing.And prior art is more abundant to the little relatively right bearing cooling of caloric value, and then not enough to the left bearing cooling that caloric value is relatively large, left bearing is relatively badly more fragile than right bearing because of operational environment.
The utility model content
The purpose of this utility model is the bearing falling temperature technique problem that solves motor output shaft end place.A kind of simple in structure, rational motor built-in wind cooling structure of warm down sequence is proposed.
The utility model is achieved through the following technical solutions technical goal.
The motor built-in wind cooling structure, it constitutes motor body by shell, stator, rotor, left end cap, right end cap, left bearing, right bearing, left gland and right gland.Described left end tegmental wall is provided with axially extending bore, and the right-hand member tegmental wall is provided with axially extending bore.Improvements are: axially connect wind scooper on the described left end cap inwall, wind scooper is truncated cone, and larger diameter end is towards a left side, and smaller diameter end is towards the right side.
Wind scooper in the said structure is located on the left end cap inner side end, the wind scooper of truncated cone has siphonage, wind scooper sucks extraneous cold air from the axially extending bore that the left end tegmental wall is provided with, cold air at first passes through the relatively large left bearing of caloric value, order finally flows out from the axially extending bore that the right-hand member tegmental wall is provided with rotor and right bearing cooling again.
The utility model compared with prior art has following good effect:
1, adjusts the wind scooper installation site, do not change electric motor structure, do not increase manufacturing cost;
2, front wind-guide cover warm down sequence is reasonable, and the relatively large left bearing of caloric value is effectively lowered the temperature, and has improved the operational environment of left bearing, reduces the spoilage of left bearing, makes the left and right bearing of motor fair relatively useful life.
Description of drawings
It shown in the accompanying drawing structural representation of the present utility model.
Embodiment
Motor built-in wind cooling structure shown in the drawings, it constitutes motor body by shell 4, stator 5, rotor 6, left end cap 1, right end cap 7, left bearing 10, right bearing 9, left gland 11 and right gland 3.Described left end cap 1 wall is provided with axially extending bore 12, and right end cap 7 walls are provided with axially extending bore 8.Axially connect wind scooper 2 on described left end cap 1 inwall, wind scooper 2 is truncated cone, and larger diameter end is towards a left side, and smaller diameter end is towards the right side.The wind scooper 2 of truncated cone has siphonage, preposition wind scooper 2 sucks outside cold air from the axially extending bore 12 that left end cap 1 wall is provided with, at first relatively large left bearing 10 coolings to caloric value, order is to rotor 6 and right bearing 9 coolings again, and cold air flows out from the axially extending bore 8 that right end cap 7 walls are provided with after heat exchange.Because the relatively large left bearing 10 of caloric value is effectively lowered the temperature, and has improved the operational environment of left bearing 10, reduce the damage of left bearing 10, make the left and right bearing of motor fair relatively useful life.
Claims (1)
1, a kind of motor built-in wind cooling structure, it constitutes motor body by shell (4), stator (5), rotor (6), left end cap (1), right end cap (7), left bearing (10), right bearing (9), left gland (11) and right gland (3); Described left end cap (1) wall is provided with axially extending bore (12), and right end cap (7) wall is provided with axially extending bore (8); It is characterized in that: axially connect wind scooper (2) on described left end cap (1) inwall, wind scooper (2) is truncated cone, and larger diameter end is towards a left side, and smaller diameter end is towards the right side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620165014 CN200976528Y (en) | 2006-12-08 | 2006-12-08 | Electric motor built-in wind cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620165014 CN200976528Y (en) | 2006-12-08 | 2006-12-08 | Electric motor built-in wind cooling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200976528Y true CN200976528Y (en) | 2007-11-14 |
Family
ID=38902808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620165014 Expired - Fee Related CN200976528Y (en) | 2006-12-08 | 2006-12-08 | Electric motor built-in wind cooling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200976528Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347262A (en) * | 2018-09-29 | 2019-02-15 | 东方电机控制设备有限公司 | A kind of anti-siphon method of Generator Stator Cooling water system |
-
2006
- 2006-12-08 CN CN 200620165014 patent/CN200976528Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347262A (en) * | 2018-09-29 | 2019-02-15 | 东方电机控制设备有限公司 | A kind of anti-siphon method of Generator Stator Cooling water system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071114 Termination date: 20101208 |