CN112421817A - Permanent magnet synchronous motor for circulating fan - Google Patents
Permanent magnet synchronous motor for circulating fan Download PDFInfo
- Publication number
- CN112421817A CN112421817A CN202011245610.XA CN202011245610A CN112421817A CN 112421817 A CN112421817 A CN 112421817A CN 202011245610 A CN202011245610 A CN 202011245610A CN 112421817 A CN112421817 A CN 112421817A
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- China
- Prior art keywords
- motor
- permanent magnet
- fan
- rotor
- magnet synchronous
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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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/17—Stator cores with permanent magnets
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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
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a permanent magnet synchronous motor for a circulating fan, which belongs to the technical field of textile fabric production and comprises a motor body, a motor mounting flange, a motor shaft, a first motor bearing, a motor rotor, a motor winding, a permanent magnet stator, a second motor bearing, a cooling fan, a power line interface and a fan protective cover. The permanent magnet synchronous motor for the circulating fan is characterized in that the stator is made of a permanent magnet material, the rotor is wound, the rotor is arranged in the center of the stator with a magnetic field and is influenced by the magnetic field force, the rotor is in a semi-magnetic suspension state, the abrasion of a motor shaft and a bearing is reduced, the motor is low in noise and high in stability, the direct-current high voltage is prevented from impacting a frequency converter through the speed reduction of the magnetic field, the service life of the frequency converter is prolonged, and the purposes of energy conservation and environmental protection are achieved.
Description
Technical Field
The invention relates to a permanent magnet synchronous motor for a circulating fan, and belongs to the technical field of textile fabric production equipment.
Background
The textile setting machine can be widely applied to the after-finishing process of various textiles such as woven fabrics, knitted fabrics and the like, has wide equipment functions, and improves the hand feeling, the color, the breadth, the strength, the appearance and the like of the textiles by padding various dyes to finish the textiles such as soft, stiff, tentering, resin and the like.
In the existing drying and shaping, a chain track of the drying and shaping machine belongs to a single-layer horizontal structure and is heated by adopting heat-carrying oil or natural gas hot air circulation. The device mainly comprises a cloth feeding frame, a padder, a central control operation panel, an upper needle cloth feeding device, a needle plate chain and track, a width adjusting device, a hot air circulating system, an exhaust device, a cold air device, an edge cutting device, a cloth discharging and arranging device and the like; the hot air circulating system mainly comprises a circulating fan, an air pipe, an air outlet nozzle and the like.
The existing circulating fan motor generally adopts an alternating current motor, and the alternating current motor can be divided into a synchronous motor and an asynchronous motor (or called as an asynchronous motor) according to the rotation speed of a rotor. The rotor speed of a synchronous motor is always the same as the speed of the rotating magnetic field regardless of the load, and therefore this speed is called synchronous speed, which, as mentioned above, depends only on the frequency of the power supply. The speed of the asynchronous motor is not constant and depends on the size of the load and the supply voltage. The three-phase asynchronous motor is divided into a motor without a commutator and a motor with a commutator. The most of the asynchronous motors in practical use are induction motors without rectifiers (but the three-phase asynchronous commutator motors connected in parallel and in series have the advantages of being capable of regulating the rotating speed in a wide range, having high power factor and the like), and the rotating speed of the induction motors is constantly lower than the synchronous rotating speed
The existing alternating current motor utilizes a frequency converter to control the rotating speed, and has the advantages of high noise, instability, high cost, high energy consumption and short service life; secondly, because of the structure reason, when braking, it is great to converter and bearing harm, and the ageing damage of converter is accelerated, increases the maintenance cost and influences normal production.
Therefore, the permanent magnet synchronous motor for the circulating fan is capable of reducing abrasion of a motor shaft and a bearing, low in motor noise and high in stability, reducing speed through a magnetic field, avoiding direct-current high-voltage impact on the frequency converter, prolonging the service life of the frequency converter and achieving the purposes of energy conservation and environmental protection, and is a technical problem which needs to be solved urgently in the technical field.
Disclosure of Invention
The invention aims to provide a permanent magnet synchronous motor for a circulating fan based on the defects of the motor of the hot air circulating fan, wherein a permanent magnet is arranged in a stator, and a rotor is in a semi-magnetic suspension state in the center of the stator through a rotor winding, so that the abrasion of a motor shaft and a bearing is effectively reduced, the motor has low noise and high stability, the direct-current high voltage is prevented from impacting a frequency converter through the speed reduction of a magnetic field, the service life of the frequency converter is prolonged, and the purposes of energy conservation and environmental protection are achieved.
In order to achieve the purpose, the invention adopts the following technical scheme:
a permanent magnet synchronous motor for a circulating fan comprises a motor body, a motor mounting flange, a motor shaft, a first motor bearing, a motor rotor, a motor winding, a permanent magnet stator, a second motor bearing, a cooling fan, a power line interface and a fan protective cover; the motor mounting flange is located motor body one side, and the motor shaft passes through the motor first bearing and is connected with the motor body with the motor second bearing, and the one end of motor shaft is connected with radiator fan, and the fan protection casing is connected with the motor body, and the fan protection casing is located the radiator fan outside, and the electric motor rotor is connected with the motor shaft, and motor winding is connected with the electric motor rotor, and the permanent magnetism material stator is connected with the motor body, and the power cord interface is located the upper portion intermediate position of motor body.
Preferably, the motor power of the permanent magnet synchronous motor for the circulating fan is 0.75kW-18 kW.
Preferably, the circulation fan is arranged on the stator with the permanent magnet of the permanent magnet synchronous motor.
Preferably, the circulation fan is wound on the rotor with a permanent magnet synchronous motor.
Preferably, the rotor of the permanent magnet synchronous motor for the circulating fan is in a semi-magnetic suspension state in the center of the stator.
Has the advantages that:
compared with the traditional permanent magnet synchronous motor, the permanent magnet synchronous motor for the circulating fan is characterized in that the stator is made of permanent magnet materials, the rotor is wound, the rotor is arranged in the center of the stator with a magnetic field and is influenced by the magnetic field force, the rotor is in a semi-magnetic suspension state, the abrasion of a motor shaft and a bearing is reduced, the motor is low in noise and high in stability, the direct-current high voltage is prevented from impacting a frequency converter through the speed reduction of the magnetic field, the service life of the frequency converter is prolonged, and the purposes of energy conservation and environmental protection are.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments, but the present invention is not meant to be limited to the scope of the present invention.
Drawings
Fig. 1 is a schematic structural diagram of a permanent magnet synchronous motor for a circulation fan in embodiment 1 of the present invention.
Names of main parts:
1 motor body and 2 motor mounting flange
3 motor shaft 4 motor first bearing
5 motor rotor 6 motor winding
7 permanent magnet stator 8 motor second bearing
9 heat radiation fan 10 power line interface
11 protective cover for fan
Detailed Description
Unless otherwise indicated, the devices and methods described in the detailed description of the invention are all conventional in the art; unless otherwise indicated, the devices or components of the embodiments of the present invention are commercially available conventional devices or components, and their installation and connection are conventional in the art.
Example 1
Fig. 1 is a schematic structural diagram of a permanent magnet synchronous motor for a circulation fan in embodiment 1 of the present invention; the motor comprises a motor body 1, a motor mounting flange 2, a motor shaft 3, a first motor bearing 4, a motor rotor 5, a motor winding 6, a permanent magnet stator 7, a second motor bearing 8, a cooling fan 9, a power line interface 10 and a fan protective cover 11, wherein the motor body is arranged on the motor body 1;
the permanent magnet synchronous motor for the circulating fan comprises: the motor comprises a motor body 1, a motor mounting flange 2, a motor shaft 3, a motor first bearing 4, a motor rotor 5, a motor winding 6, a permanent magnet stator 7, a motor second bearing 8, a cooling fan 9, a power line interface 10 and a fan protective cover 11; motor mounting flange 2 is located 1 one side of motor body, be used for installing PMSM for the circulating fan in other equipment, motor shaft 3 is connected with motor body 1 through motor primary shaft bearing 4 and motor secondary shaft bearing 8, the one end of motor shaft 3 is connected with radiator fan 9, fan protection casing 11 is connected with motor body 1, fan protection casing 11 is located radiator fan 9 outside, electric motor rotor 5 is connected with motor shaft 3, motor winding 6 is connected with electric motor rotor 5, permanent magnetism material stator 7 is connected with motor body 1, power cord interface 10 is located the upper portion intermediate position of motor body 1.
The motor power of the permanent magnet synchronous motor for the circulating fan is 0.75kW-18 kW; the permanent magnet of the permanent magnet synchronous motor for the circulating fan is arranged in the permanent magnet stator; the winding of the permanent magnet synchronous motor for the circulating fan is arranged on the motor rotor; the motor rotor of the permanent magnet synchronous motor for the circulating fan is arranged in the center of a stator with a magnetic field and is influenced by the force of the magnetic field, and the motor rotor is in a magnetic suspension state.
The permanent magnet synchronous motor for the circulating fan is characterized in that the stator is made of a permanent magnet material, the rotor is wound, the rotor is arranged in the center of the stator with a magnetic field and is influenced by the magnetic field force, the rotor is in a magnetic suspension state, the abrasion of a motor shaft and a bearing is reduced, the motor is low in noise and high in stability, the direct-current high voltage is prevented from impacting a frequency converter through the speed reduction of the magnetic field, the service life of the frequency converter is prolonged, and meanwhile, the purposes of energy conservation and environmental protection are.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. The utility model provides a PMSM for circulating fan which characterized in that: the motor comprises a motor body, a motor mounting flange, a motor shaft, a first motor bearing, a motor rotor, a motor winding, a permanent magnet stator, a second motor bearing, a cooling fan, a power line interface and a fan protective cover; the motor mounting flange is located motor body one side, and the motor shaft passes through the motor first bearing and is connected with the motor body with the motor second bearing, and the one end of motor shaft is connected with radiator fan, and the fan protection casing is connected with the motor body, and the fan protection casing is located the radiator fan outside, and the electric motor rotor is connected with the motor shaft, and motor winding is connected with the electric motor rotor, and the permanent magnetism material stator is connected with the motor body, and the power cord interface is located the upper portion intermediate position of motor body.
2. The permanent magnet synchronous motor for a circulation fan according to claim 1, wherein: the motor power of the permanent magnet synchronous motor for the circulating fan is 0.75kW-18 kW.
3. The permanent magnet synchronous motor for a circulation fan according to claim 2, wherein: the permanent magnet of the permanent magnet synchronous motor for the circulating fan is arranged in the permanent magnet stator.
4. The permanent magnet synchronous motor for a circulation fan according to claim 3, wherein: and the winding of the permanent magnet synchronous motor for the circulating fan is arranged on the motor rotor.
5. The permanent magnet synchronous motor for a circulation fan according to claim 4, wherein: the motor rotor of the permanent magnet synchronous motor for the circulating fan is arranged in the center of a stator with a magnetic field and is under the influence of magnetic field force, and the motor rotor is in a magnetic suspension state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011245610.XA CN112421817A (en) | 2020-11-10 | 2020-11-10 | Permanent magnet synchronous motor for circulating fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011245610.XA CN112421817A (en) | 2020-11-10 | 2020-11-10 | Permanent magnet synchronous motor for circulating fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112421817A true CN112421817A (en) | 2021-02-26 |
Family
ID=74781174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011245610.XA Pending CN112421817A (en) | 2020-11-10 | 2020-11-10 | Permanent magnet synchronous motor for circulating fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112421817A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201118409Y (en) * | 2007-08-21 | 2008-09-17 | 象山县东方汽车电机厂 | A permanent magnetic DC electromotor |
| CN106803705A (en) * | 2015-10-20 | 2017-06-06 | 周文三 | Motor structure with heat radiation function |
| CN210490594U (en) * | 2019-10-12 | 2020-05-08 | 常州市一鑫电气有限公司 | High-strength stable motor structure |
| CN211859743U (en) * | 2020-03-25 | 2020-11-03 | 无锡川木驱动科技有限公司 | Permanent magnet synchronous servo motor |
-
2020
- 2020-11-10 CN CN202011245610.XA patent/CN112421817A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201118409Y (en) * | 2007-08-21 | 2008-09-17 | 象山县东方汽车电机厂 | A permanent magnetic DC electromotor |
| CN106803705A (en) * | 2015-10-20 | 2017-06-06 | 周文三 | Motor structure with heat radiation function |
| CN210490594U (en) * | 2019-10-12 | 2020-05-08 | 常州市一鑫电气有限公司 | High-strength stable motor structure |
| CN211859743U (en) * | 2020-03-25 | 2020-11-03 | 无锡川木驱动科技有限公司 | Permanent magnet synchronous servo motor |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210226 |
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| RJ01 | Rejection of invention patent application after publication |