CN107994734A - A kind of high power density fire-proof motor - Google Patents
A kind of high power density fire-proof motor Download PDFInfo
- Publication number
- CN107994734A CN107994734A CN201711372262.0A CN201711372262A CN107994734A CN 107994734 A CN107994734 A CN 107994734A CN 201711372262 A CN201711372262 A CN 201711372262A CN 107994734 A CN107994734 A CN 107994734A
- Authority
- CN
- China
- Prior art keywords
- engine base
- proof motor
- high power
- power density
- air passage
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/10—Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
Abstract
The present invention discloses a kind of high power density fire-proof motor, including engine base and internal fan, stator, rotor in engine base, and internal fan is installed in shaft, and engine base front and back end is correspondingly provided with drive end bearing bracket, rear end cap respectively.Engine base includes cylinder, and cylinder excircle uniform intervals set multiple axially disposed air passages, and multiple axially disposed radiating ribs are intervally distributed with the cylinder between adjacent air passage；Engine base rear end is equipped with noise reduction end shield, is diametrically formed between end shield front end inner periphery and rear end cap excircle interior equipped with the external fan for being sleeved on shaft non-shaft stretching end with air passage, the corresponding air outlet of radiating ribs, end shield.The present invention by the way of radiating ribs heat dissipation is combined, on the premise of fire-proof motor small volume, improves the result of ventilating heat dissipation of fire-proof motor using cooling tube heat dissipation.
Description
Technical field
The present invention relates to fire-proof motor technical field, more specifically a kind of high power density fire-proof motor.
Background technology
With the overall situation situation of national energy-saving emission reduction, the continuous improvement of forced motor efficiency level, large capacity, Gao Gong
Rate density, small motor are the development trends of fire-proof motor, and efficiency is low, bulky motor will withdraw from the market or by
Gradually eliminate.The motor of high power density is in the situation of equal output power, small volume, more compact structure.But high power is close
The electromagnetic load height of fire-proof motor is spent, the heat that unit volume stator coil produces is relatively large, therefore ventilation and heat is always
Limit the exploitation bottleneck of high power density motor.Therefore, the result of ventilating heat dissipation of high power density fire-proof motor how is improved, is
Recent study develops the hot subject of high power density fire-proof motor.
At present, some designers add internal fan on the interior wind path of fire-proof motor, and improve its air quantity, pressure expires
The demand of sufficient motor internal ventilation and heat.But the increase of internal fan flow is realized by increasing internal fan appearance and size, because
The volume of this fire-proof motor will accordingly increase, and the mechanical loss of internal fan can also increase, and so motor can be caused to imitate on the contrary
The decline of rate, while can also cause the increase of noise.In addition, also some designers take motor internal add radiating ribs,
Increase the methods of radiating ribs in engine base outer surface to improve the heat-sinking capability of motor, but motor volume can be caused to increase, it is impossible to is full
The requirement of sufficient high power density fire-proof motor.
The content of the invention
It is an object of the invention to provide a kind of high power density fire-proof motor, is radiated by cooling tube heat dissipation with radiating ribs
The mode being combined, on the premise of fire-proof motor small volume, improves the result of ventilating heat dissipation of fire-proof motor.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of high power density fire-proof motor, including engine base and internal fan, stator, rotor in engine base, internal fan peace
In shaft, drive end bearing bracket, rear end cap are correspondingly provided with respectively in the front and back end of engine base, between drive end bearing bracket, rear end cap and shaft
Equipped with bearing, and bearing internal external side is correspondingly provided with internal bearing cover and bearing cover respectively.Engine base includes cylinder, and cylinder excircle is equal
It is even to be arranged at intervals multiple axially disposed air passages, it is intervally distributed with the cylinder between adjacent air passage multiple axially disposed
Radiating ribs；Engine base rear end is equipped with noise reduction end shield, and end shield front inner diameter is more than rear end cap outside diameter, end shield front end inner periphery and rear end cap
Diametrically formed between excircle with air passage, the corresponding air outlet of radiating ribs, rear end is equipped with that to be set in shaft non-in end shield
The external fan of axle stretch end.
The air passage is radially protruded and air passage is connected with base inner, is equipped with each air passage through air passage
Multiple cooling tubes, the corresponding ports of cooling tube are connected with the air outlet.
Cooling tube quantity all same in each air passage.
The air passage is four, is respectively provided with three identical cooling tubes of specification in each air passage, the both ends of cooling tube with
The corresponding both ends expanded joint of engine base.
Gap between the cooling tube, adjacent heat radiation muscle constitutes the exogenous wind paths of engine base, is come out from air outlet
Air flows through exogenous wind paths.
Radiating ribs between adjacent air passage are one group, and every group of radiating ribs are using gradual change spacing, the gradual change type of gradual change height
Structure, height of the every group of radiating ribs from centre to both sides increase successively.
The outside diameter of air outlet is identical with the outside diameter of exogenous wind paths.
Be equipped with the noise-reducing structure that there is axial spacing with rear end cap in the end shield, noise-reducing structure be located at end shield inner periphery and
Between the excircle of external fan, the axial length of noise-reducing structure is along end shield radially by being become larger in the outwardly direction of center.
The noise-reducing structure is silencing cotton.
The internal fan is installed in the non-shaft stretching end of shaft, and the end shield is fixed on engine base by fastener.
The present invention by the way of radiating ribs heat dissipation is combined, i.e., is set using cooling tube heat dissipation in cylinder excircle uniform intervals
Multiple axially disposed air passages are put, are intervally distributed with multiple axially disposed radiating ribs between adjacent air passage, in air passage
Equipped with multiple cooling tubes, the air in air and engine base in cooling tube carries out heat transfer by cooling tube, and heat transfer efficiency is high, into
And improve the heat-sinking capability of motor；Between end shield front end inner periphery and rear end cap excircle diametrically formed with air passage, dissipate
The hot corresponding air outlet of muscle, makes cooling tube, radiating ribs have air to flow through, radiates than more uniform；Radiating ribs are used between gradual change
Gradual change type innovative design away from, gradual change height so that the heat sink design of motor is in appearance and modeling, casting technique, ventilation and heat
Aspect than traditional equidistant circumference radial pattern heat sink in appearance and modeling it is more compact, simultaneously because the design of gradual change more meet it is logical
Wind radiating principle, adds motor specific volume power density, the capacity of motor is done more.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 be Fig. 1 along A-A to sectional view；
Fig. 3 be Fig. 2 along B-B to sectional view.
Embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book understands other advantages and effect of the present invention easily.It should be clear that structure depicted in this specification attached drawing,
Ratio, size etc., only to coordinate the revealed content of specification, so that those skilled in the art understands and reads, and
It is not used to limit the enforceable qualifications of the present invention, therefore does not have technical essential meaning, the modification of any structure, ratio is closed
The change of system or the adjustment of size, in the case where not influencing the effect of present invention can be generated and the purpose that can reach, should all still fall
In the range of disclosed technology contents can be covered.Meanwhile in this specification it is cited as " on ", " under ",
The term of "left", "right", " centre " and " one " etc., is merely convenient to understanding for narration, and is not used to limit the present invention and can implement
Scope, its relativeness is altered or modified, in the case where changing technology contents without essence, when being also considered as the enforceable model of the present invention
Farmland.
As shown in Figure 1 to Figure 3, a kind of high power density fire-proof motor, including engine base 1 and internal fan 2 in engine base 1,
Stator 3, rotor 4, internal fan 2 are installed in shaft 5.It is correspondingly provided with drive end bearing bracket 6, rear end cap 7 respectively in the front and back end of engine base 1,
Bearing is equipped between drive end bearing bracket 6, rear end cap 7 and shaft 5, and bearing internal external side is correspondingly provided with internal bearing cover 8 and bearing respectively
Outer cover 9.Engine base 1 includes cylinder 10, and 10 excircle uniform intervals of cylinder set multiple air passages 11 axially extended, adjacent air passage
Multiple radiating ribs 12 axially extended are intervally distributed with cylinder 10 between 11.1 rear end of engine base is equipped with noise reduction end shield 13, end
Cover 13 front inner diameters and be more than 7 outside diameter of rear end cap, between 13 front end inner periphery of end shield and 7 excircle of rear end cap diametrically formed with
Air passage 11, the corresponding air outlet 14 of radiating ribs 12, rear end is equipped with the external fan for being set in 5 non-shaft stretching end of shaft in end shield 13
15。
The air passage 11 is radially protruded and air passage 11 is connected with the inside of engine base 1, and number is equipped with each air passage 11
Multiple cooling tubes 16 identical and through air passage 11 are measured, the corresponding ports of cooling tube 16 are connected with the air outlet 14.This reality
Apply in example, air passage 11 is four, sets the identical cooling tube 16 of three specifications in each air passage 11, the both ends of cooling tube 16 with
The corresponding both ends expanded joint of engine base 1.
Gap between the cooling tube 16, adjacent heat radiation muscle 12 constitutes the exogenous wind paths of engine base 1, from air outlet 14
Air out flows through exogenous wind paths, and the outside diameter of air outlet 14 is identical with the outside diameter of exogenous wind paths.Adjacent air passage 11 it
Between radiating ribs 12 be one group, every group of radiating ribs 12 using gradual change spacing, the gradual change type structure of gradual change height, every group of radiating ribs
12 height from centre to both sides increases successively.The noise-reducing structure that there is axial spacing with rear end cap 7 is equipped with the end shield 13
17, noise-reducing structure 17 is located between the inner periphery of end shield 13 and the excircle of external fan 15, the axial length edge of noise-reducing structure 17
For 13 radial direction of end shield by being become larger in the outwardly direction of center, the noise-reducing structure 17 is silencing cotton.Noise-reducing structure 17 is using gradually
Become the structure of axial length, i.e. noise-reducing structure 17 is smaller close to the axial length of external fan 15, and the axial direction close to air outlet 14 is long
Spend larger, the wind pressure of air outlet 14 can be improved, and effectively reduce ventilation noise.
The internal fan 2 is installed in the non-shaft stretching end of shaft 5, and internal fan 2 makes the interior wind path of engine base 1 flow to and outer ventilation circuit stream
To consistent, raising heat exchange efficiency.The end shield 13 is fixed on engine base 1 by fastener, easy to the installation and dismounting of end shield 13.
Specific work process is as follows：
The ventilation and heat of the present invention is divided into interior wind path and outer ventilation circuit：1st, interior wind path refers under the action of internal fan 2, in engine base 1
Air flow to front end from the rear end in the outside of stator 3, in this process, portion of air contacted with cylinder 10 after through radiating ribs
12 heat dissipations, another part contact heat dissipation with the outer wall of cooling tube 16 in air passage 11, and the air after heat dissipation runs into 6 rear steering of drive end bearing bracket
Flowed backward along the air passage on the air gap and rotor 4 of stator 3 and rotor 4；2nd, outer ventilation circuit refers under the action of external fan 15,
Outside air is flowed into end shield 13 from the air inlet 18 of end shield 13, and the air in end shield 13 flows to outer ventilation circuit through air outlet 14 and leads to
Road, sub-fraction air flow into cooling tube 16 in, flowed through in internal wind path 16 outer wall of cooling tube air absorbed heat after flow out,
Surplus air flows into the gap between adjacent heat radiation muscle 12, absorbs the heat that cylinder 10 passes to radiating ribs 12.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (10)
1. a kind of high power density fire-proof motor, including engine base and internal fan, stator, rotor in engine base, internal fan
It is fixed in shaft, drive end bearing bracket, rear end cap is correspondingly provided with respectively in the front and back end of engine base, between drive end bearing bracket, rear end cap and shaft
Bearing is equipped with, and bearing internal external side is correspondingly provided with internal bearing cover and bearing cover respectively, it is characterised in that：Engine base includes cylinder
Body, cylinder excircle uniform intervals set multiple axially disposed air passages, are intervally distributed with the cylinder between adjacent air passage
Multiple axially disposed radiating ribs；Engine base rear end is equipped with noise reduction end shield, and end shield front inner diameter is more than rear end cap outside diameter, before end shield
Hold diametrically formed between inner periphery and rear end cap excircle with air passage, the corresponding air outlet of radiating ribs, be equipped with end shield
It is sleeved on the external fan of shaft non-shaft stretching end.
2. high power density fire-proof motor according to claim 1, it is characterised in that：Radially protrude in the air passage
And air passage is connected with base inner, multiple cooling tubes through air passage are equipped with each air passage, the corresponding ports of cooling tube are equal
Connected with the air outlet.
3. high power density fire-proof motor according to claim 2, it is characterised in that：Cooling tube in each air passage
Quantity all same.
4. high power density fire-proof motor according to claim 3, it is characterised in that：The air passage is four, Mei Gefeng
Three identical cooling tubes of specification, the both ends both ends expanded joint corresponding with engine base of cooling tube are respectively provided with road.
5. high power density fire-proof motor according to claim 4, it is characterised in that：The cooling tube, adjacent heat radiation muscle
Between gap constitute the exogenous wind paths of engine base, the air come out from air outlet flows through exogenous wind paths.
6. high power density fire-proof motor according to claim 5, it is characterised in that：Radiating ribs between adjacent air passage are
One group, every group of radiating ribs are using gradual change spacing, the gradual change type structure of gradual change height, height of the every group of radiating ribs from centre to both sides
Degree increases successively.
7. high power density fire-proof motor according to claim 6, it is characterised in that：The outside diameter of air outlet leads to outer ventilation circuit
The outside diameter in road is identical.
8. high power density fire-proof motor according to claim 1, it is characterised in that：It is equipped with the end shield and rear end cap
Noise-reducing structure with axial spacing, noise-reducing structure between end shield inner periphery and the excircle of external fan, noise-reducing structure
Axial length is along end shield radially by being become larger in the outwardly direction of center.
9. high power density fire-proof motor according to claim 8, it is characterised in that：The noise-reducing structure is silencing cotton.
10. high power density fire-proof motor according to any one of claim 1 to 9, it is characterised in that：The internal fan
The non-shaft stretching end of shaft is installed in, the end shield is fixed on engine base by fastener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711372262.0A CN107994734A (en) | 2017-12-19 | 2017-12-19 | A kind of high power density fire-proof motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711372262.0A CN107994734A (en) | 2017-12-19 | 2017-12-19 | A kind of high power density fire-proof motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107994734A true CN107994734A (en) | 2018-05-04 |
Family
ID=62038721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711372262.0A Pending CN107994734A (en) | 2017-12-19 | 2017-12-19 | A kind of high power density fire-proof motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107994734A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109450151A (en) * | 2018-11-30 | 2019-03-08 | 葛氏控股有限公司 | The permanent-magnet servo motor of built-in heat dissipation wind channel |
| WO2021238334A1 (en) * | 2020-05-25 | 2021-12-02 | Abb Schweiz Ag | Housing of electric machine and associated electric machine |
| CN114856823A (en) * | 2022-05-09 | 2022-08-05 | 西安空天机电智能制造有限公司 | Air-cooled rotor engine's cooling structure and unmanned aerial vehicle |
| CN117081305A (en) * | 2023-08-23 | 2023-11-17 | 玉柴芯蓝新能源动力科技有限公司 | Motor heat radiation structure |
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| CN202183689U (en) * | 2011-07-30 | 2012-04-04 | 南阳防爆集团股份有限公司 | Internal wind path structure for 2-pole motor |
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| CN105391220A (en) * | 2015-12-15 | 2016-03-09 | 卧龙电气南阳防爆集团股份有限公司 | High-voltage explosion-proof three-phase asynchronous motor with low temperature rise |
| CN107276313A (en) * | 2017-06-26 | 2017-10-20 | 中煤科工集团重庆研究院有限公司 | High power density compact mine ventilator motor |
| CN207638503U (en) * | 2017-12-19 | 2018-07-20 | 卧龙电气集团股份有限公司 | A kind of high power density fire-proof motor |
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| CN102939700A (en) * | 2010-06-11 | 2013-02-20 | 西门子公司 | Dynamoelectric machine having air/liquid cooling |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109450151A (en) * | 2018-11-30 | 2019-03-08 | 葛氏控股有限公司 | The permanent-magnet servo motor of built-in heat dissipation wind channel |
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| WO2021238334A1 (en) * | 2020-05-25 | 2021-12-02 | Abb Schweiz Ag | Housing of electric machine and associated electric machine |
| CN114856823A (en) * | 2022-05-09 | 2022-08-05 | 西安空天机电智能制造有限公司 | Air-cooled rotor engine's cooling structure and unmanned aerial vehicle |
| CN114856823B (en) * | 2022-05-09 | 2023-11-10 | 西安空天机电智能制造有限公司 | Cooling structure of air-cooled rotor engine and unmanned aerial vehicle |
| CN117081305A (en) * | 2023-08-23 | 2023-11-17 | 玉柴芯蓝新能源动力科技有限公司 | Motor heat radiation structure |
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