CN103219854A - Dry-type asynchronous-startup permanent-magnet synchronous motor based on sealing structure - Google Patents
Dry-type asynchronous-startup permanent-magnet synchronous motor based on sealing structure Download PDFInfo
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- CN103219854A CN103219854A CN2013101705490A CN201310170549A CN103219854A CN 103219854 A CN103219854 A CN 103219854A CN 2013101705490 A CN2013101705490 A CN 2013101705490A CN 201310170549 A CN201310170549 A CN 201310170549A CN 103219854 A CN103219854 A CN 103219854A
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Abstract
The invention relates to a dry-type asynchronous-startup permanent-magnet synchronous motor based on a sealing structure. The motor comprises a stator, a rotor and a shell, wherein the rotor is mounted on a motor shaft, an output end of the motor shaft is mounted on a front end cover of the shell, the front end cover is connected with a shell body and a rear end cover so as to form the shell, the rotor is a cast-aluminum rotor inside which magnetic steel is embedded, a shielding isolation plate is mounted between the shell body and the rear end cover, the stator is mounted on the shielding isolation plate and comprises a stator tooth body and a stator yoke part, the stator tooth body is of an L shape, a straight end of the stator tooth body penetrates through the shielding isolation plate and is clung to the stator yoke part, a hook part of the L shape of the stator tooth body is effectively aligned to the rotor, the rear end cover is in sealed connection with the stator yoke part and the shielding isolation plate so as to form a stator cavity, a stator winding is wound on the stator tooth body and is located in the stator cavity, and compressed air is filled in the stator cavity. According to the dry-type asynchronous-startup permanent-magnet synchronous motor based on the sealing structure, the complete isolation of the stator and rotor of the motor is realized, and the aim of protecting the stator winding can be achieved by only using a static seal, so that the motor has a good sealing effect; and the motor has the advantages of good safety in operation and few faults.
Description
Technical field
The invention belongs to the AC asynchronous motor technical field, particularly relate to a kind of dry type asynchronous starting permagnetic synchronous motor based on hermetically-sealed construction.
Background technology
Along with the expansion in motor application field, the demand of motors such as the extra large motor of diving, submersible motor, dustproof motor, grease proofing motor, fire-proof motor increases gradually.These motors need excellent sealing performance, and particularly the Sealing Technology of motor windings is particularly crucial, so this technology also is the emphasis of various countries' research always.
In the existing motor seal technology, in order to protect stator winding, major part is all used the employing dynamic sealing technology, makes the hermetically-sealed construction more complicated that becomes, and sealing effectiveness is also undesirable; Along with the variation of external factor such as pressure, temperature, extraneous moisture, greasy dirt and dust and other impurities are easy to invade in the space at motor windings place, cause coil wearing and tearing, corrosion and aging, have a strong impact on motor useful life.Here propose a kind of new electric machine structure, do not reduce under the prerequisite of motor performance, effectively improve the sealing property of motor in maintenance.
Summary of the invention
Technical problem to be solved by this invention provides a kind of dry type asynchronous starting permagnetic synchronous motor based on hermetically-sealed construction, and the protection motor stator winding makes it avoid influence such as moisture, greasy dirt and dust and aging, the damage that cause.
The technical solution adopted for the present invention to solve the technical problems is: a kind of dry type asynchronous starting permagnetic synchronous motor based on hermetically-sealed construction is provided, comprise stator, rotor and shell, described rotor is installed on the motor shaft, described motor shaft shaft one end is installed on the front end housing of shell, described front end housing connects housing and rear end cap forms shell, described rotor is the inner cast-aluminum rotor that embeds magnet steel, between described housing and the rear end cap shielded partitions is installed, on the described shielded partitions stator is housed, described stator comprises stator tooth body and stator yoke portion, described stator tooth body is L-shaped, straight end passes shielded partitions and stator yoke portion fits, the hook portion of described stator tooth body " L " shape is effectively alignd with rotor, described rear end cap is connected sealing and forms bore of stator with stator yoke portion and shielded partitions, described stator tooth is wound with stator winding on one's body, described stator winding is positioned at bore of stator, using charged air pressure in the described bore of stator.
Described rear end cap surrounds bore of stator and partly charges into the hole and be furnished with sealing device.
The described motor shaft other end passes shielded partitions and stator yoke portion is installed on rear end cap, and described motor shaft is positioned at bore of stator and partly is with axle sleeve.
The installing port that described rear end cap is installed motor shaft is equipped with bearing (ball) cover.
Be full of compressed air in the bore of stator, can effectively strengthen the ability that shielded partitions is born hydraulic pressure.
Beneficial effect
The present invention realizes the isolation fully of motor stator and rotor, only uses static seal just can reach the purpose of protection stator winding, has good sealing effect; The motor safety in operation is good, and fault is few.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is installed in the schematic diagram of rear end cap situation for motor shaft of the present invention.
Fig. 3 is the schematic diagram of rotor of the present invention.
Fig. 4 is a stator tooth body schematic diagram of the present invention.
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Shown in Fig. 1 to 4, a kind of dry type asynchronous starting permagnetic synchronous motor based on hermetically-sealed construction, comprise stator, rotor 3 and shell, described rotor 3 is installed on the motor shaft 1, described motor shaft 1 shaft one end is installed on the front end housing 2 of shell, described front end housing 2 connects housing and rear end cap 8 forms shell, described rotor 3 is the inner cast-aluminum rotor that embeds magnet steel, between described housing and the rear end cap 8 shielded partitions 5 is installed, on the described shielded partitions 5 stator is housed, described stator comprises stator tooth body 4 and stator yoke portion 7, described stator tooth body 4 is L-shaped, straight end passes shielded partitions 5 and fits with stator yoke portion 7, the hook portion of described stator tooth body 4 " L " shape is effectively alignd with rotor, described rear end cap 8 is connected sealing and forms bore of stator 9 with stator yoke portion 7 and shielded partitions 5, be wound with stator winding 6 on the described stator tooth body 4, described stator winding 6 is positioned at bore of stator 9, using charged air pressure in the described bore of stator 9.
Described rear end cap 8 surrounds bore of stator 9 parts has compressed air to inject closed hole 10.
Described motor shaft 1 other end passes shielded partitions 5 and stator yoke portion 7 is installed on rear end cap 8, and described motor shaft 1 is positioned at bore of stator 9 parts and is with axle sleeve 11.
The installing port that described rear end cap 8 is installed motor shaft 1 is equipped with bearing (ball) cover 12.
Claims (4)
1. dry type asynchronous starting permagnetic synchronous motor based on hermetically-sealed construction, comprise stator, rotor (3) and shell, described rotor (3) is installed on the motor shaft (1), described motor shaft (1) shaft one end is installed on the front end housing (2) of shell, described front end housing (2) connects housing and rear end cap (8) forms shell, described rotor (3) is the inner cast-aluminum rotor that embeds magnet steel, it is characterized in that, shielded partitions (5) is installed between described housing and the rear end cap (8), described shielded partitions is equipped with stator on (5), described stator comprises stator tooth body (4) and stator yoke portion (7), described stator tooth body (4) is L-shaped, straight end passes shielded partitions (5) and fits with stator yoke portion (7), the hook portion of described stator tooth body (4) " L " shape is effectively alignd with rotor, described rear end cap (8) is connected sealing and forms bore of stator (9) with stator yoke portion (7) and shielded partitions (5), be wound with stator winding (6) on the described stator tooth body (4), described stator winding (6) is positioned at bore of stator (9), the interior using charged air pressure of described bore of stator (9).
2. a kind of dry type asynchronous starting permagnetic synchronous motor based on hermetically-sealed construction according to claim 1 is characterized in that, described rear end cap (8) surrounds bore of stator (9) part and charges into hole (10) and be furnished with sealing device.
3. a kind of dry type asynchronous starting permagnetic synchronous motor according to claim 1 based on hermetically-sealed construction, it is characterized in that, described motor shaft (1) other end passes shielded partitions (5) and stator yoke portion (7) is installed on rear end cap (8), and described motor shaft (1) is positioned at bore of stator (9) part and is with axle sleeve (11).
4. a kind of dry type asynchronous starting permagnetic synchronous motor based on hermetically-sealed construction according to claim 3 is characterized in that, the installing port that described rear end cap (8) is installed motor shaft (1) is equipped with bearing (ball) cover (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101705490A CN103219854A (en) | 2013-05-09 | 2013-05-09 | Dry-type asynchronous-startup permanent-magnet synchronous motor based on sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101705490A CN103219854A (en) | 2013-05-09 | 2013-05-09 | Dry-type asynchronous-startup permanent-magnet synchronous motor based on sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103219854A true CN103219854A (en) | 2013-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101705490A Pending CN103219854A (en) | 2013-05-09 | 2013-05-09 | Dry-type asynchronous-startup permanent-magnet synchronous motor based on sealing structure |
Country Status (1)
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| CN (1) | CN103219854A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5767606A (en) * | 1992-11-27 | 1998-06-16 | Hydor S.R.L. | Synchronous electric motor, particularly for submersible pumps, and pump including the motor |
| WO2001045235A1 (en) * | 1999-12-17 | 2001-06-21 | MONEGO, Guido | Electronically controlled permanent-magnet electric motor |
| US6765325B1 (en) * | 1999-09-03 | 2004-07-20 | Elf Exploration Production | Alternating current electric motor |
| CN201038873Y (en) * | 2006-12-12 | 2008-03-19 | 中国电子科技集团公司第二十一研究所 | Sealing structure of brush AC signal motor |
| CN201478909U (en) * | 2009-07-24 | 2010-05-19 | 江苏大学 | Semidry submersible motor |
-
2013
- 2013-05-09 CN CN2013101705490A patent/CN103219854A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5767606A (en) * | 1992-11-27 | 1998-06-16 | Hydor S.R.L. | Synchronous electric motor, particularly for submersible pumps, and pump including the motor |
| US6765325B1 (en) * | 1999-09-03 | 2004-07-20 | Elf Exploration Production | Alternating current electric motor |
| WO2001045235A1 (en) * | 1999-12-17 | 2001-06-21 | MONEGO, Guido | Electronically controlled permanent-magnet electric motor |
| CN201038873Y (en) * | 2006-12-12 | 2008-03-19 | 中国电子科技集团公司第二十一研究所 | Sealing structure of brush AC signal motor |
| CN201478909U (en) * | 2009-07-24 | 2010-05-19 | 江苏大学 | Semidry submersible motor |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130724 |