CN110855080A - Ventilation and heat dissipation system of five-phase asynchronous induction motor - Google Patents
Ventilation and heat dissipation system of five-phase asynchronous induction motor Download PDFInfo
- Publication number
- CN110855080A CN110855080A CN201911388177.2A CN201911388177A CN110855080A CN 110855080 A CN110855080 A CN 110855080A CN 201911388177 A CN201911388177 A CN 201911388177A CN 110855080 A CN110855080 A CN 110855080A
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- CN
- China
- Prior art keywords
- heat dissipation
- ventilation
- rotor
- end cover
- fan
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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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Classifications
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- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
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- 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
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- 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
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/003—Couplings; Details of shafts
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- 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
Abstract
The invention relates to a ventilation and heat dissipation system of a five-phase asynchronous induction motor, which comprises a casing, a front end cover, a rear end cover, a motor fan end cover, a fan, a stator, a rotor and a rotating shaft, wherein the casing is internally provided with the stator, the middle of the stator is rotatably provided with the rotor, the rotor is provided with the rotating shaft, the rotating shaft is provided with four symmetrical arc-shaped ventilation holes, the yoke part of the rotor is provided with axial ventilation holes with equal intervals and circles, the front end cover and the rear end cover of the motor are provided with the ventilation holes with symmetrical front and rear, a heat dissipation fin on the motor casing is provided with a ventilation channel with a triangular cross section, the rear end of the casing is provided with a fan cavity communicated with the outside, a fan blade is arranged on the rotating shaft in the fan cavity, the wind blown out by the fan blade hits the fan cover, one part of the heat of the stator is taken away by the heat dissipation fin, the, the heat generated by the rotor part is taken away, the heat dissipation efficiency is improved, the temperature rise is better inhibited, and the heat dissipation effect is good.
Description
Technical Field
The invention relates to a ventilation and heat dissipation system of a five-phase asynchronous induction motor, mainly relates to a yoke part of a rotor and an opening of an axial ventilation hole of a rotating shaft, and belongs to the technical field of motors.
Background
The most common cooling method for electric machines today is air cooling. The temperature rise of the motor is generally caused by the heating of the winding, and the overheating of the motor can influence the performance of the motor. A good heat dissipation system is needed for effectively reducing the temperature rise of the motor, the heat dissipation efficiency of the motor is improved, and the motor can stably and efficiently run.
When the motor is used, the stator and the rotor can generate heat, the rotating shaft can also generate heat, and the whole motor can generate heat seriously after a long time. Therefore, the longitudinal section of the radiating fin on the surface of the shell is designed into a triangle to accelerate heat radiation, the radiating area is increased, the radiating efficiency on the surface of the stator is improved, and the axial ventilation holes of the rotor and the rotating shaft accelerate the radiating speed in the motor. The system can accelerate the air circulation flow in the motor and improve the air cooling heat dissipation effect of the motor.
The mode that the axial vent and the casing vent in the system combine together can make the inside temperature of motor reach uniform state as soon as possible, avoids the local temperature rise of motor too high to lead to motor trouble.
Disclosure of Invention
The invention aims to provide a ventilation and heat dissipation system of a five-phase asynchronous induction motor, which aims to solve the existing heat dissipation deficiency of the motor, ensure the motor to work stably and is not easy to damage due to overhigh local temperature.
In order to achieve the aim, the invention adopts the technical scheme that:
the invention relates to a ventilation and heat dissipation system of a five-phase asynchronous induction motor, which comprises: the motor comprises a shell (1), a front end cover (6), a rear end cover (8), a motor fan end fan cover (11), a fan (10), a stator (3), a rotor (4) and a rotating shaft (5), which are coaxially arranged. A stator is arranged in the casing, a rotor is rotatably arranged in the middle of the stator, a rotating shaft is arranged on the rotor, the rotating shaft is provided with four symmetrical arc-shaped ventilation holes (15), the yoke part of the rotor is provided with equidistant circular axial ventilation holes (13), the front end cover and the rear end cover of the motor are provided with ventilation holes (7) and (9) which are symmetrical front and back, the heat dissipation fin (2) on the motor shell is provided with a ventilation ditch (14) with a triangular section, the rear end of the casing is provided with a fan blade cavity (16) communicated with the outside, a rotating shaft in the fan blade cavity is provided with a fan blade, the wind blown out by the fan blades hits the fan cover (11), one part of the wind takes away the heat of the stator part through the heat dissipation fins (2), and the other part of the wind blows to the ventilation holes of the front end cover along the circular axial ventilation holes of the rotor yoke part from the holes of the rear end cover to take away the heat generated by the rotor part.
The invention has the beneficial effects that: the pivot is opened has four symmetrical arc ventilation holes (15), and it has the circular shape axial ventilation hole of equidistance (13) to open on the rotor yoke portion, is close to the rotor conducting bar, improves the heat-sinking capability of motor.
The front end cover and the rear end cover of the motor are provided with ventilation holes (7) and (9) which are symmetrical front and back, a heat dissipation fin (2) on a motor shell is provided with a ventilation channel (14) with a triangular cross section, the rear end of the motor shell is provided with a fan blade cavity (16) communicated with the outside, a fan blade is arranged on a rotating shaft in the fan blade cavity, air blown out by the fan blade is blown onto a fan cover (11), one part of the air takes away heat of a stator part through the heat dissipation fin (2), and the other part of the air is blown to the ventilation hole of the front end cover along the circular axial ventilation hole of a rotor yoke part by a rear end cover hole to. The ventilation and heat dissipation structure with multiple ventilation paths provides multiple ventilation and heat dissipation paths for the inner wind path, so that the heat dissipation capacity of the motor is enhanced, the weight of the motor is reduced, and the iron core loss and the manufacturing cost of the motor are reduced to a certain extent.
Drawings
Fig. 1 is an axial half three-dimensional sectional view of a ventilation and heat dissipation system motor of a five-phase asynchronous induction motor according to the present invention.
Fig. 2 is a radial three-dimensional sectional view of a motor of a ventilation and heat dissipation system of a five-phase asynchronous induction motor according to the present invention.
Fig. 3 is a half sectional view of a motor rotor structure of a ventilation and heat dissipation system of a five-phase asynchronous induction motor according to the present invention.
Fig. 4 is a structural view of a motor shaft of a ventilation and heat dissipation system of a five-phase asynchronous induction motor according to the present invention.
In the figure: 1-motor shell, 2-shell radiating fins, 3-stator, 4-rotor, 5-rotating shaft, 6-front end cover, 7-front end cover vent hole, 8-rear end cover, 9-rear end cover vent hole, 10-fan, 11-fan cover, 12-fan cover air inlet hole, 13-rotor yoke vent hole, 14-radiating fin triangular vent hole, 15-rotating shaft vent hole and 16-fan blade cavity.
Detailed Description
The following provides a more detailed description of the present invention with reference to the accompanying drawings.
The attached figures 1, 2, 3 and 4 are a structure diagram of a ventilation and heat dissipation system of a five-phase asynchronous induction motor, and the structure diagram aims to solve the problem of insufficient heat dissipation of the motor in the prior art, form a ventilation and heat dissipation structure with multiple ventilation paths, provide multiple ventilation and heat dissipation paths for an internal air path, enhance the heat dissipation capacity of the motor, reduce the weight of the motor, and reduce the iron core loss and the manufacturing cost of the motor to a certain extent.
The invention relates to a ventilation and heat dissipation system of a five-phase asynchronous induction motor, which comprises: the motor comprises a shell (1), a front end cover (6), a rear end cover (8), a motor fan end fan cover (11), a fan (10), a stator (3), a rotor (4) and a rotating shaft (5), which are coaxially arranged. Be provided with the stator in the casing, it is provided with the rotor to rotate in the middle of the stator, be equipped with the pivot on the rotor, arc ventilation hole (15) that have four symmetries are opened in the pivot, it has the circular axial ventilation hole of equidistance (13) to open on the rotor yoke portion, the end cover is opened ventilation hole (7) (9) that have the front and back symmetry around the motor, and heat dissipation wing (2) on the motor casing have cross sectional shape for triangular ventilation ditch (14), the casing rear end is provided with fan blade chamber (16) that switch on with the external world, install the fan leaf in the pivot in the fan blade chamber, the wind that the fan leaf blew off is beaten on fan housing (11), and the heat of stator part is taken away in some process heat dissipation wing (2), and another part wind is taken away the hole that the circular axial ventilation hole of rotor yoke portion blew to the front end.
The pivot is opened has four symmetrical arc ventilation holes (15), and it has the circular shape axial ventilation hole of equidistance (13) to open on the rotor yoke portion, is close to the rotor conducting bar, improves the heat-sinking capability of motor.
The front end cover and the rear end cover of the motor are provided with ventilation holes (7) and (9) which are symmetrical front and back, a heat dissipation fin (2) on a motor shell is provided with a ventilation channel (14) with a triangular cross section, the rear end of the motor shell is provided with a fan blade cavity (16) communicated with the outside, a fan blade is arranged on a rotating shaft in the fan blade cavity, air blown out by the fan blade is blown onto a fan cover (11), one part of the air takes away heat of a stator part through the heat dissipation fin (2), and the other part of the air is blown to the ventilation hole of the front end cover along the circular axial ventilation hole of a rotor yoke part by a rear end cover hole to. The ventilation and heat dissipation structure with multiple ventilation paths provides multiple ventilation and heat dissipation paths for the inner wind path, so that the heat dissipation capacity of the motor is enhanced, the weight of the motor is reduced, and the iron core loss and the manufacturing cost of the motor are reduced to a certain extent.
It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the device structures and processing steps closely related to the aspects of the present invention are shown in the drawings, and other details not so related to the present invention are omitted.
Although the embodiments of the present invention have been described above, the contents thereof are merely embodiments adopted to facilitate understanding of the technical aspects of the present invention, and are not intended to limit the present invention. It will be apparent to persons skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. A ventilation and heat dissipation system of a five-phase asynchronous induction motor is characterized by comprising a casing (1), a front end cover (6), a rear end cover (8), a motor fan end fan cover (11), a fan (10), a stator (3), a rotor (4) and a rotating shaft (5), wherein the stator is arranged in the casing, the rotor is rotatably arranged in the middle of the stator, the rotating shaft is arranged on the rotor, four symmetrical arc-shaped ventilation holes (15) are formed in the rotating shaft, equidistant circular axial ventilation holes (13) are formed in the yoke part of the rotor, front and rear symmetrical ventilation holes (7) and (9) are formed in the front and rear end covers of the motor, heat dissipation fins on the motor casing are provided with ventilation ditches (14) with triangular cross sections, a fan blade cavity (16) communicated with the outside is arranged at the rear end of the casing, a fan blade is arranged on the rotating shaft in the fan blade cavity, and air blown out by the, one part of the wind carries away the heat of the stator part through the heat dissipation fins (2), and the other part of the wind blows from the ventilation holes of the rear end cover to the ventilation holes of the front end cover along the circular axial ventilation holes of the rotor yoke part to carry away the heat generated by the rotor part.
2. The ventilation and heat dissipation system of a five-phase asynchronous induction motor according to claim 1, wherein: the rotating shaft is provided with four symmetrical arc-shaped ventilation holes (15).
3. The ventilation and heat dissipation system of a five-phase asynchronous induction motor according to claim 1, wherein: and the rotor yoke part is provided with axial ventilation holes (13) with equal distance and circular shape.
4. The ventilation and heat dissipation system of a five-phase asynchronous induction motor according to claim 1, wherein: the front end cover and the rear end cover of the motor are provided with ventilation holes (7) and (9) which are symmetrical front and rear.
5. The ventilation and heat dissipation system of a five-phase asynchronous induction motor according to claim 1, wherein: the radiating fin on the motor shell is provided with a ventilating duct (14) with a triangular section.
6. The ventilation and heat dissipation system of a five-phase asynchronous induction motor according to claim 1, wherein: the heat dissipation fin on the motor shell is provided with a ventilation channel (14) with a triangular cross section, the rear end of the motor shell is provided with a fan blade cavity (16) communicated with the outside, and a rotating shaft in the fan blade cavity is provided with a fan blade (10).
7. The ventilation and heat dissipation system of a five-phase asynchronous induction motor according to claim 1, wherein: the wind blown out by the fan blades hits on a fan cover (11), one part of the wind passes through the heat dissipation fins (2), and the other part of the wind is blown to the ventilation holes (7) of the front end cover by the ventilation holes (9) of the rear end cover along the circular axial ventilation holes (13) of the yoke part of the rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911388177.2A CN110855080A (en) | 2019-12-30 | 2019-12-30 | Ventilation and heat dissipation system of five-phase asynchronous induction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911388177.2A CN110855080A (en) | 2019-12-30 | 2019-12-30 | Ventilation and heat dissipation system of five-phase asynchronous induction motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110855080A true CN110855080A (en) | 2020-02-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911388177.2A Pending CN110855080A (en) | 2019-12-30 | 2019-12-30 | Ventilation and heat dissipation system of five-phase asynchronous induction motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110855080A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116566154A (en) * | 2023-06-21 | 2023-08-08 | 佛山市顺德龙佳微电机实业有限公司 | Single-phase capacitance asynchronous motor and electric drill provided with same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006180617A (en) * | 2004-12-22 | 2006-07-06 | Asmo Co Ltd | Fan motor |
| CN206332570U (en) * | 2017-01-04 | 2017-07-14 | 温岭市东菱电机有限公司 | Permanent magnet low-speed induction machine |
| CN208874373U (en) * | 2018-10-15 | 2019-05-17 | 哈尔滨理工大学 | A kind of ventilation and heat structure of medium-sized high pressure asynchronous motor |
-
2019
- 2019-12-30 CN CN201911388177.2A patent/CN110855080A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006180617A (en) * | 2004-12-22 | 2006-07-06 | Asmo Co Ltd | Fan motor |
| CN206332570U (en) * | 2017-01-04 | 2017-07-14 | 温岭市东菱电机有限公司 | Permanent magnet low-speed induction machine |
| CN208874373U (en) * | 2018-10-15 | 2019-05-17 | 哈尔滨理工大学 | A kind of ventilation and heat structure of medium-sized high pressure asynchronous motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116566154A (en) * | 2023-06-21 | 2023-08-08 | 佛山市顺德龙佳微电机实业有限公司 | Single-phase capacitance asynchronous motor and electric drill provided with same |
| CN116566154B (en) * | 2023-06-21 | 2023-12-15 | 佛山市顺德龙佳微电机实业有限公司 | Single-phase capacitance asynchronous motor and electric drill provided with same |
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| PB01 | Publication | ||
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Application publication date: 20200228 |