CN206461450U - A kind of interior wind path structure of asynchronous machine - Google Patents
A kind of interior wind path structure of asynchronous machine Download PDFInfo
- Publication number
- CN206461450U CN206461450U CN201621413414.8U CN201621413414U CN206461450U CN 206461450 U CN206461450 U CN 206461450U CN 201621413414 U CN201621413414 U CN 201621413414U CN 206461450 U CN206461450 U CN 206461450U
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- CN
- China
- Prior art keywords
- wind path
- air vent
- rotor punching
- interior wind
- punching
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- 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.)
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Abstract
The utility model is related to a kind of interior wind path structure of asynchronous machine, including stator punching, rotor punching, rotating shaft, and is placed in the support that rotor punching is supported in rotating shaft.It is characterized in that：To stator punching perforate strip air vent, to rotor punching opened round air vent and square air vent, but the non-90 degree of right angle connected modes in square air vent corner, but arc transition, rotor punching equi-spaced apart.The tapping of air gap and rotor punching between air gap, rotor punching and stator punching of the cooling air between rotating shaft and rotor punching enters to be flowed along motor axial direction, the axial path of wind path in motor is formed, the space of rotor punching equi-spaced apart formation constitutes the radial ventilation path of interior wind path.Both structures are bonded to the interior wind path path of New-type electric machine, the ability that cooling gas quickly reduces key position temperature had both been improved, the phenomenon of turbulent flow in interior wind path is reduced again.
Description
Technical field
The utility model is related to a kind of interior wind path structure of asynchronous machine, specially rotor punching perforate and air gap shape
Into the axial ventilation road of interior wind path, rotor punching equi-spaced apart forms the radial ducts of interior wind path, belongs to motor ventilation skill
Art field.
Background technology
Current asynchronous machine application is more and more extensive, to the demand of power also more and more higher.
Research for motor temperature rise problem becomes important problem, and it is reduction motor temperature to design excellent ventilating system
Highly important work is risen, good Design of ventilation can not only take away more heats to reduce shadow of the temperature rise to insulating materials
Ring, and significant effect is suffered from for improving motor operation stability and reducing cost.
And the draft type of wind path is usually that centrifugal or radial inflow fan is installed in rotating shaft in traditional motor, adopt
With the mode for forcing cooling, do not consider how to optimize the ventilating path of motor internal, and real electrical machinery internal structure is complicated,
Directly ventilation can be made not uniform enough using the ventilation of this compulsory type, turbulent flow is more, and cooling air is not efficiently utilized, main hair
The cooling effect of thermal source is not good enough, and causes noise of motor to increase.
The utility model optimizes the ventilating path of wind path in motor in this context, improves cooling capacity.
The content of the invention
The utility model is not enough for current Design of ventilation, it is proposed that a kind of motor with new interior wind path structure,
Ventilating path is also optimized while draught area is increased, is improved to the main pyrotoxin stator winding of motor and rotor bar
Cooling capacity, the combination in radial ducts and axial ventilation road can be with more efficient utilization cooling gas.
The technical solution of the utility model is：A kind of interior wind path structure of asynchronous machine, including rotor punching perforate, it is fixed
Rotor punching equi-spaced apart, it is characterised in that：Two kinds of shaped vents are opened on rotor punching, it is a kind of to be proximate to the square of rotating shaft end
Air vent, but the non-90 degree of right angle connected modes in its corner, but arc transition, another is that the circle of nearly rotor trench bottom is led to
Air holes, stator punching perforate is strip air vent, and positioned at stator slot top, radial ducts is equidistant arrangement.
Further, circular vent is located at two neighboring rotor trench bottom, between its center line and adjacent two rotor slot
Tooth body center line overlap, be along the circumferential direction equally spaced.
Further, square ventilation centerline hole is overlapped with the regional center line between adjacent two circular vent, is located at
At the nearly rotating shaft of rotor punching, along the circumferential direction it is equally spaced.
Further, the stator tooth body center line weight between strip ventilation centerline hole and two adjacent stator slots
Close, it is circumferentially square to be equally spaced.
Compared with prior art, the utility model beneficial effect is：The nearly rotating shaft end evolution shape ventilation of rotor punching in Fig. 1
Hole（5）, this structure can be in the case where area be certain closer to rotating shaft, and the gap opposing circular ventilation of adjacent air vent
Pore structure is advantageously in the close distribution of magnetic, the influence that also electric machine iron core is lost for reduction perforate to a certain extent；In nearly rotor
Trench bottom opened round air vent（4）Be conducive to distributing for adjacent rotor groove inner wire heat；Due to the close distribution of motor magnetic radially
Distribution, opens stator punching strip air vent（2）It can reduce and degree is blocked to the close trend of magnetic；Both may be used by symmetrically designing
There is the possibility of turbulent flow to reduce cooling air, cooling capacity can be improved again.
The cooling air flow path of wind path is as shown in solid arrow in Fig. 2 in motor.
Brief description of the drawings
Fig. 1, the utility model motor diagrammatic cross-section.
Wind path ventilating system schematic diagram in Fig. 2, the utility model motor.
Reference：1st, stator punching；2nd, strip air vent；3rd, rotating shaft；4th, circular vent；5th, square air vent；6
Rotor field spider；7th, radial ducts.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.
Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Two kinds of shaped vents are opened on rotor punching in Fig. 1, one kind is proximate to rotating shaft end evolution shape air vent（5）, but
The non-90 degree of right angle connected modes in its corner, but arc transition, another is nearly rotor trench bottom opened round air vent（4）,
Stator punching perforate is strip air vent（2）, positioned at stator slot top, radial ducts in fig. 2（7）For equidistant arrangement.
Further, circular vent（4）Positioned at two neighboring rotor trench bottom, its center line and adjacent two rotor slot it
Between tooth body center line overlap, be along the circumferential direction equally spaced.
Further, square air vent（5）Center line and adjacent two circular vent（4）Between regional center line weight
Close, at the nearly rotating shaft of rotor punching, be along the circumferential direction equally spaced.
Further, strip air vent（2）Stator tooth body center line between center line and two adjacent stator slots
Overlap, it is circumferentially square to be equally spaced.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out in the case where not departing from principle of the present utility model and spirit a variety of changes, repaiies
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of interior wind path structure of asynchronous machine, it is characterised in that：Two kinds of shaped vents are opened on rotor punching, one kind is to lean on
Nearly rotating shaft end evolution shape air vent（5）, but the non-90 degree of right angle connected modes in its corner, but arc transition, another is near
Rotor trench bottom opened round air vent（4）, stator punching perforate is strip air vent（2）, it is radially logical positioned at stator slot top
Air channel（7）For equidistant arrangement.
2. a kind of interior wind path structure of asynchronous machine according to claim 1, it is characterised in that：Circular vent（4）Position
Tooth body center line between two neighboring rotor trench bottom, its center line and adjacent two rotor slot is overlapped, along the circumferential direction etc.
Away from distribution.
3. the interior wind path structure of a kind of asynchronous machine according to claim 1, it is characterised in that：Square air vent（5）Center
Line and adjacent two circular vent（4）Between regional center line overlap, at the nearly rotating shaft of rotor punching, along the circumferential direction etc.
Away from distribution.
4. the interior wind path structure of a kind of asynchronous machine according to claim 1, it is characterised in that：Strip air vent（2）In
Stator tooth body center line between heart line and two adjacent stator slots is overlapped, circumferentially square to be equally spaced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621413414.8U CN206461450U (en) | 2016-12-22 | 2016-12-22 | A kind of interior wind path structure of asynchronous machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621413414.8U CN206461450U (en) | 2016-12-22 | 2016-12-22 | A kind of interior wind path structure of asynchronous machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206461450U true CN206461450U (en) | 2017-09-01 |
Family
ID=59696598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621413414.8U Expired - Fee Related CN206461450U (en) | 2016-12-22 | 2016-12-22 | A kind of interior wind path structure of asynchronous machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206461450U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN113704900A (en) * | 2021-07-22 | 2021-11-26 | 无锡欧瑞京电机有限公司 | Asynchronous motor rotor vent design method based on magnetic circuit calculation and electromagnetic field check |
-
2016
- 2016-12-22 CN CN201621413414.8U patent/CN206461450U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN113704900A (en) * | 2021-07-22 | 2021-11-26 | 无锡欧瑞京电机有限公司 | Asynchronous motor rotor vent design method based on magnetic circuit calculation and electromagnetic field check |
| CN113704900B (en) * | 2021-07-22 | 2023-12-26 | 无锡欧瑞京电机有限公司 | Design method for rotor vent hole of asynchronous motor based on magnetic circuit calculation and electromagnetic field check |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170901 Termination date: 20181222 |
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| CF01 | Termination of patent right due to non-payment of annual fee |