CN206834936U - A kind of special interior cooling motor of screw air compressor - Google Patents
A kind of special interior cooling motor of screw air compressor Download PDFInfo
- Publication number
- CN206834936U CN206834936U CN201720722485.4U CN201720722485U CN206834936U CN 206834936 U CN206834936 U CN 206834936U CN 201720722485 U CN201720722485 U CN 201720722485U CN 206834936 U CN206834936 U CN 206834936U
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- motor
- end cover
- cooling
- rotor
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Abstract
It the utility model is related to a kind of special interior cooling motor of screw air compressor, including motor front end cover（1）, motor front end cover wind deflector（4）, electric machine casing（8）, motor stator（23）, rotor（5）, back end cover for motor（10）, back end cover for motor wind deflector（12）.Described motor front end cover（1）With motor front end cover wind deflector（4）It is connected, in motor front end cover（1）On be provided with motor front end cover air inlet（14）With motor front end cover air outlet（15）, described electric machine casing（8）On be provided with electric machine casing wind guide tank（9）, described rotor（5）On be provided with the forward and backward cooling wind blade of rotor（6）With（7）, described back end cover for motor（10）With back end cover for motor wind deflector（12）It is connected, and is provided with back end cover for motor air inlet（13）.Rotor rotates, and in the presence of cooling wind blade before and after rotor, realizes to the high efficiency and heat radiation of outer and stator outer motor in the coil of stator both ends.
Description
Technical field
The present invention relates to a kind of special interior cooling motor of screw air compressor.
Background technology
Interior cooling motor cooling effectiveness is high, and effect is good, and small volume simple in construction, manufacturing cost is low, is often used in environment
Preferable occasion, it is low in the pollution of the environment because motor is arranged in casing using relatively broad on screw air compressor.China shows
There is the interior cooling motor used on screw air compressor there are two kinds of forms：When under the centrifugal action of rotor fan blade, rear end cap end
Face enters cooling air in the presence of wind deflector, and along the wind guide tank of motor internal, from motor front end cover end face, air-guiding hole goes out,
Realize the cooling to motor stator and coil；Second, cooling wind enters from the front and rear cover end-face hole of motor, respectively in front and rear wind-guiding
In the presence of plate, gone out by wind guide tank from exhaust outlet in the middle part of motor case, realize the cooling to motor stator and coil.Scheme
One, small volume is simple to manufacture, manufacturing cost is low, but can not realize to the strong cooling on the inside of the coil-end of stator leading section, cooling effect
Fruit scheme two, can reach the strong cooling realized to end turn before and after stator periphery and stator, but electric machine casing not as good as scheme two
Manufacturing process is complicated, and motor entirety manufacturing cost is high and structure corresponding scheme one is complicated, and volume is big.
The content of the invention
In view of the deficiencies in the prior art, it is an object of the invention to provide a kind of small volume, it is simple to manufacture that cost is low, cooling
A kind of special interior cooling motor of the good screw air compressor of effect.
To achieve these goals, the solution of the present invention is：A kind of special interior cooling motor of screw air compressor, including：Electricity
Machine drive end bearing bracket 1；Motor front end cover bearing 3；Motor front end cover wind deflector 4；Motor front end cover wind deflector fixing bolt 19；Before motor
End cap air inlet 14；Motor front end cover air outlet 15；Electric machine casing 8；Electric machine casing wind guide tank 9；Motor stator 23；Motor stator
Coil leading section 16；Coil of stator of motor rearward end 17；Rotor 5；Rotor axis of electric 2；Rotor end 22；Motor turns
Cooling wind blade 6 before son；Cooling wind blade 7 after rotor；Motor front end cover fixing bolt 20；Back end cover for motor 10；Motor rear end
Lid bearing 11；Back end cover for motor air inlet 13；Back end cover for motor wind deflector 12；Back end cover for motor fixing bolt 21；Motor rear end
Lid wind deflector fixing bolt 18, described motor front end cover 1 are connected by motor front end cover fixing bolt 20 with electric machine casing 8
Connecing, described motor front end cover wind deflector 4 is connected by motor front end cover wind deflector fixing bolt 19 with motor front end cover 1,
Described motor front end cover air inlet 14 and motor front end cover air outlet 15 is separately positioned on motor front end cover end face, described electricity
Machine Front Cover Bearing 3 is arranged in motor front end cover bearing chamber, and the described inner side of electric machine casing 8 is provided with a plurality of electric machine casing wind-guiding
Groove 9, described motor stator 23 are arranged on the inner side of electric machine casing 8, and its outer ring and electric machine casing wind guide tank 9 form cooling wind radiating
Wind guide tank, described motor stator coil end portion are respectively coil of stator of motor leading section 16 and coil of stator of motor rearward end
17, it is to be formed by the coil combination for being embedded in stator interior, described rotor 5 is arranged on inside motor stator, described
Rotor axis of electric 2 and motor rotor punching sheet endoporus are fixed, respectively and the He of motor front end cover bearing 3 that is arranged on motor front end cover
It is arranged on the back end cover for motor bearing 11 that motor rear end covers to be connected, cooling wind blade 6 and motor turn before described rotor
Cooling wind blade 7 after son, it is separately positioned on front and rear rotor end 22, described back end cover for motor 10 is consolidated by back end cover for motor
Determine bolt 21 back end cover for motor 10 and electric machine casing 8 are connected, described back end cover for motor wind deflector 12 is by back end cover for motor
Wind deflector is fixed spiral shell select 18 and is connected with back end cover for motor 10.
Further, the monolithic sectional area of cooling wind blade 6 should be than cooling wind blade after rotor 7 before described rotor
Monolithic sectional area small five to percent percent 40, make after rotor that centrifugation blast is more than caused by cooling wind blade 7
Centrifugal force caused by cooling wind blade 6 before rotor.
Further, the end outer of cooling wind blade 6 and the end of motor front end cover wind deflector 4 before described rotor
The distance of outer is 0.5 to 9 millimeter, is flowed back with reducing the short circuit of pressure cooling wind.
Further, the end wind edge of cooling wind blade 7 and the end of back end cover for motor wind deflector 12 after described rotor
The distance of portion outer is 0.5 to 10 millimeter, is flowed back with reducing the short circuit of pressure cooling wind.
The main advantage of the present invention is：Motor front end cover wind deflector 4 is provided with motor front end cover 1, when rotor rotates
Before rotor under the centrifugal action of cooling wind blade 6, cooling wind is entered by motor front end cover air inlet 14, along before rotor
Then the outer of cooling wind blade 6 is tangentially directly cooled down to coil of stator of motor leading section 16 from motor front end cover air outlet 15
Go out, realize the cooling to motor stator.Simultaneously as the centrifugal force of the rotation of rotor cooling wind blade 7 after rotor
Under effect, cooling wind is entered by the back end cover for motor air inlet 13 of back end cover for motor 10, along rotor after cooling wind blade 7 it is outer
Edge is gone out by electric machine casing wind guide tank 9 along motor front end cover air outlet 15, is realized to coil of stator of motor rearward end 17 and stator
The cooling of iron core outer ring.Realized using the present invention outside strong cooling and stator periphery and the end to motor stator rear ends interior edge
The direct cooling on edge, cooling air-flow is small in motor internal resistance, good cooling results, small volume, is simple to manufacture easy to process, cost
Low, electric efficiency is high.
Brief description of the drawings
Fig. 1 is a kind of special interior cooling electric machine structure figure of screw air compressor.
Embodiment
It is further elaborated with reference to accompanying drawing 1：Electrical power rotor rotates, cooling wind blade 6 and electricity before rotor
After machine rotor under the centrifugal action of cooling wind blade 7, in the rear end of motor, cooling wind enters from back end cover for motor air inlet 13, along electricity
The outer of cooling wind blade 7 is realized to cool down the interior edge of coil of stator of motor rearward end 17 by force and led thereafter through electric machine casing after machine rotor
Wind groove 9 goes out along motor front end cover air outlet 15 again, realizes outer and motor stator periphery to coil of stator of motor rear ends
Efficient cooling, before rotor under the centrifugal action of cooling wind blade 6, cooling wind entered by motor front end cover air inlet 14, edge
Cooling wind blade 6 before rotor it is outer tangentially the interior edge of coil of stator of motor leading section 16 is realized strong cooling then from
Motor front end cover air outlet 15 goes out, so as to reach the purpose efficiently cooled down.
Claims (4)
1. a kind of special interior cooling motor of screw air compressor, including：Motor front end cover (1)；Motor front end cover bearing (3)；Motor
Drive end bearing bracket wind deflector (4)；Motor front end cover air inlet (14)；Motor front end cover air outlet (15)；Electric machine casing (8)；Motor turns
Sub (5)；Back end cover for motor (10)；Back end cover for motor air inlet (13)；Back end cover for motor wind deflector (12)；It is characterized in that：Institute
The motor front end cover (1) stated is connected by motor front end cover fixing bolt (20) with electric machine casing (8), described motor front end
Lid wind deflector (4) is connected by motor front end cover wind deflector fixing bolt (19) with motor front end cover (1), before described motor
End cap air inlet (14) and motor front end cover air outlet (15) are separately positioned on motor front end cover end face, described back end cover for motor
（10）Pass through fixing bolt（21）And electric machine casing（8）It is connected, described rotor（5）It is arranged on electric machine casing（8）It is interior.
A kind of 2. special interior cooling motor of screw air compressor according to claim 1, it is characterised in that：Described motor turns
The monolithic sectional area of cooling wind blade (6) should arrive than the monolithic sectional area small 5 percent of cooling wind blade after rotor (7) before son
40 percent, centrifugation blast caused by cooling wind blade (7) is more than cooling wind blade (6) institute before rotor after making rotor
Caused centrifugal force.
A kind of 3. special interior cooling motor of screw air compressor according to claim 1, it is characterised in that：Described motor turns
Son（5）It is provided with preceding cooling wind blade（6）, outside the end outer of preceding cooling wind blade (6) and the end of motor front end cover wind deflector (4)
The distance on edge is 0.5 to 9 millimeter, is flowed back with reducing the short circuit of pressure cooling wind.
A kind of 4. special interior cooling motor of screw air compressor according to claim 1, it is characterised in that：Described motor turns
Son（5）It is provided with rear cooling wind blade（7）, the end wind edge of rear cooling wind blade (7) and the end of back end cover for motor wind deflector (12)
The distance of outer is 0.5 to 10 millimeter, is flowed back with reducing the short circuit of pressure cooling wind.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720722485.4U CN206834936U (en) | 2017-06-21 | 2017-06-21 | A kind of special interior cooling motor of screw air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720722485.4U CN206834936U (en) | 2017-06-21 | 2017-06-21 | A kind of special interior cooling motor of screw air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206834936U true CN206834936U (en) | 2018-01-02 |
Family
ID=60776484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720722485.4U Expired - Fee Related CN206834936U (en) | 2017-06-21 | 2017-06-21 | A kind of special interior cooling motor of screw air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206834936U (en) |
-
2017
- 2017-06-21 CN CN201720722485.4U patent/CN206834936U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180102 Termination date: 20180621 |