CN112104144A - Stator fixing device, compressor and motor - Google Patents
Stator fixing device, compressor and motor Download PDFInfo
- Publication number
- CN112104144A CN112104144A CN202010801034.6A CN202010801034A CN112104144A CN 112104144 A CN112104144 A CN 112104144A CN 202010801034 A CN202010801034 A CN 202010801034A CN 112104144 A CN112104144 A CN 112104144A
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- CN
- China
- Prior art keywords
- stator
- extension
- casing
- main body
- shell
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 9
- 230000005855 radiation Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 230000000452 restraining effect Effects 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 description 9
- 238000003466 welding Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000003405 preventing effect Effects 0.000 description 3
- 230000005284 excitation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
-
- 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
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
- H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Compressor (AREA)
Abstract
The invention provides a stator fixing device, a compressor and a motor, wherein the stator fixing device comprises: stator core (11), casing (2) and lid (3), stator core (11) set up the inside of casing (2), just the periphery wall of stator core (11) with the internal perisporium of casing (2) is connected, lid (3) include main part (31) and extension (32), extension (32) with main part (31) are connected, main part (31) lid is established and is fixed the one end of casing (2), extension (32) extend the entering the inside of casing (2), and with the one end butt of stator core (11). According to the invention, the effect of restraining the axial vibration of the stator can be achieved, the rigidity of the stator is improved, the vibration amplitude of the stator is reduced, the vibration transmission and the noise radiation of the stator are reduced, the noise of the rotary compressor is effectively reduced, and the noise quality of the rotary compressor is improved.
Description
Technical Field
The invention relates to the technical field of compressors, in particular to a stator fixing device, a compressor and a motor.
Background
One of vibration noise sources of the rotary compressor is motor excitation force, namely, a stator coil of the motor generates a magnetic field after being electrified, a rotor of the motor rotates under the action of electromagnetic force of the stator coil, and the opposite rotor also generates reaction force to the stator, so that the stator vibrates. The motor stator is fixed inside the shell of the rotary compressor in a pressing, welding and other modes, so that the vibration of the stator can be transmitted to the shell, and the rotary compressor can vibrate integrally and radiate noise outwards.
The stator of the motor of the rotary compressor in the prior art is easy to vibrate, so that the problems of high noise and the like are caused, and therefore the stator fixing device, the compressor and the motor are researched and designed.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is to overcome the defect that the stator of the compressor motor in the prior art is prone to generate vibration, so as to provide a stator fixing device, a compressor and a motor.
In order to solve the above problems, the present invention provides a stator fixing device, comprising:
stator core, casing and lid, stator core sets up the inside of casing, just stator core's periphery wall with the internal perisporium of casing is connected, the lid includes main part and extension, the extension with the main part is connected, the main part lid is established the one end of casing, the extension extends to get into the inside of casing, and with stator core's one end butt.
Preferably, the housing is a cylindrical body, and the main body portion has a circular plate structure and is matched with the housing in shape.
Preferably, the extension part is of a cylindrical structure, and one axial end of the extension part of the cylindrical structure is fixedly connected with the main body part.
Preferably, the outer diameter of the extension portion is smaller than the outer diameter of the main body portion; and/or the extension part is integrally formed with the main body part.
Preferably, the outer peripheral wall of the extension is in interference fit with the inner peripheral wall of the housing.
Preferably, the length of the extending portion in the axial direction is H, the end surface of the stator core, which is connected to the main body portion, is a first end surface, the end surface of the housing, which is connected to the main body portion, is a second end surface, and the first end surface and the second end surface are separated by a distance H, where H-H is 0.1mm to 0.3 mm.
Preferably, the main body part covers the upper end of the housing, and the extension part is installed into the housing from top to bottom until abutting against the stator core.
Preferably, the main body part is in welded fit with the housing; and/or the stator further comprises a coil structure, and the coil structure is wound on the stator iron core to form the stator.
The invention also provides a compressor comprising the stator fixing device of any one of the preceding claims.
The invention also provides an electric machine comprising a stator fixing device as defined in any one of the preceding claims.
The stator fixing device, the compressor and the motor provided by the invention have the following beneficial effects:
according to the invention, through the structure of the cover body, the main body part and the extension part of the cover body are connected with and covered on one end of the shell, the extension part extends into the shell and is abutted against one end of the stator core, and can be fixedly connected with the shell through the main body part, the extension part effectively extends into the shell and is effectively abutted and fixed on the stator core, and can effectively abut against the upper end surface of the stator after being assembled, so that the axial vibration of the stator is restrained, meanwhile, the rigidity of the stator is improved, the vibration amplitude of the stator is reduced, the vibration transmission and the noise radiation of the stator are reduced, the noise of the rotary compressor is effectively reduced, and the noise quality; the upper cover (cover body) is provided with a sealing part (main body part) and a ring pressing part (extension part), wherein the sealing part is in welding fit with the shell to play a role in sealing the shell, and the ring pressing part is in contact fit with the stator to play a role in restraining axial vibration of the stator, so that the rigidity of the stator is improved, the vibration amplitude of the stator is reduced, and the vibration transmission and noise radiation of the stator are reduced.
Drawings
FIG. 1 is a schematic view of the internal cross-section of a compressor having a stator fixing device of the present invention;
FIG. 2 is a schematic view of the internal cross-section of the stator fixture portion of the present invention;
fig. 3 is a bottom view and a front view of a cover in the stator fixing device portion of the present invention.
The reference numerals are represented as:
1. a stator; 11. a stator core; 12. a coil structure; 13. a first end face; 2. a housing; 21. a second end face; 3. a cover body; 31. a main body portion; 32. an extension portion; 4. and a rotor.
Detailed Description
As shown in fig. 1 to 3, the present invention provides a stator fixing device, which includes:
stator core 11, casing 2 and lid 3, stator core 11 sets up the inside of casing 2, just stator core 11's periphery wall with the internal perisporium of casing 2 is connected, lid 3 includes main part 31 and extension 32, extension 32 with main part 31 is connected, main part 31 lid is established and is fixed the one end of casing 2, extension 32 extends the entering the inside of casing 2, and with stator core 11's one end butt.
According to the invention, through the structure of the cover body, the main body part and the extension part of the cover body are connected with and covered on one end of the shell, the extension part extends into the shell and is abutted against one end of the stator core, and can be fixedly connected with the shell through the main body part, the extension part effectively extends into the shell and is effectively abutted and fixed on the stator core, and can effectively abut against the upper end surface of the stator after being assembled, so that the axial vibration of the stator is restrained, meanwhile, the rigidity of the stator is improved, the vibration amplitude of the stator is reduced, the vibration transmission and the noise radiation of the stator are reduced, the noise of the rotary compressor is effectively reduced, and the noise quality; the upper cover (cover body) is provided with a sealing part (main body part) and a ring pressing part (extension part), wherein the sealing part is in welding fit with the shell to play a role in sealing the shell, and the ring pressing part is in contact fit with the stator to play a role in restraining axial vibration of the stator, so that the rigidity of the stator is improved, the vibration amplitude of the stator is reduced, and the vibration transmission and noise radiation of the stator are reduced.
The invention strengthens the restraint of the motor stator of the rotary compressor and reduces the vibration of the motor stator of the rotary compressor; the noise of the rotary compressor is reduced, and the noise quality of the rotary compressor is improved.
Preferably, the housing 2 is a cylindrical body, and the body portion 31 has a circular plate structure and matches the shape of the housing 2. The preferred structural form and shape of the shell and the preferred shape and structural form of the main body part of the invention are that the shell of the cylinder body can be connected with the main body part of the circular plate structure, so that the main body part of the circular plate structure is covered on the shell of the cylinder body to form effective connection, and the two are fixedly connected to maintain better stability and ensure the contact and anti-vibration effects on the stator.
Preferably, the extension portion 32 has a cylindrical structure, and one axial end of the extension portion 32 having the cylindrical structure is fixedly connected to the main body portion 31. The extension part is preferably in a structural form and shape, namely, the cylindrical extension part can effectively extend into the shell of the cylindrical body and is effectively connected with the shell, one end of the extension part is fixedly connected with the main body part so that the extension part can be fixed through the main body part, and the other end of the extension part abuts against the stator core so that the stator can be effectively abutted and the vibration preventing effect can be realized.
Preferably, the outer diameter of the extension 32 is smaller than the outer diameter of the body 31; and/or the extension part 32 is integrally formed with the main body part 31. This is a preferred form of the extension of the present invention, and the outer diameter of the extension is smaller than that of the main body, so that the main body radially covers one axial end of the housing, and the extension extends into the interior of the housing, and the extension is preferably integrally formed with the main body.
Preferably, the outer peripheral wall of the extension 32 is in interference fit with the inner peripheral wall of the housing 2. This is a further preferred form of fit between the extension and the housing of the present invention, and an effective connection between the extension and the housing can be ensured by interference, preventing the transmission of vibrations.
Preferably, the length of the extending portion 32 in the axial direction is H, the end surface of the stator core 11 contacting the main body portion 31 is a first end surface 13, the end surface of the housing 2 contacting the main body portion 31 is a second end surface 21, and the first end surface 13 and the second end surface 21 are spaced apart by a distance H, where H — H is 0.1mm to 0.3 mm.
After the stator and the shell are fixedly assembled, the installation height of the constraint end face (upper end face) of the stator from the shell is H. After the upper cover and the shell are welded and sealed, the annular pressing part of the upper cover is contacted with the stator constraint end face, and the effect of pressing is achieved. The design requirement H-H is 0.1 mm-0.3 mm, if H is too small (for example, H is less than H), the lower end of the annular pressure part can not abut against the constraint end face of the stator, and the abutting anti-vibration effect can not be achieved, if H is too large, the upper end of the main body part is fixedly connected with the upper end of the shell, so that the lower end of the extension part can generate very large extrusion force on the stator core, and the stator can be crushed or crushed, and the like, therefore, the H-H is set to be 0.1 mm-0.3 mm, the effect of restraining axial vibration of the stator can be ensured, the rigidity of the stator can be improved, and the phenomenon of stator crushing can be prevented.
Preferably, the main body 31 covers the upper end of the housing 2, and the extending portion 32 is installed into the housing 2 from top to bottom until abutting against the stator core 11. In a further preferred configuration of the main body and the extension portion of the present invention, the main body of the cover is located at the upper end of the housing, and the main body is covered at the upper end of the housing and can abut against the stator core by pressure generated from top to bottom, thereby preventing vibration of the stator.
Preferably, the main body portion 31 is in welded fit with the housing 2; and/or the stator further comprises a coil structure 12, wherein the coil structure 12 is wound on the stator core 11 to form the stator 1. The main body part and the shell are firmly combined together through welding fit, and the coil structure is used for being matched with the stator core to generate an alternating magnetic field.
The invention also provides a compressor comprising the stator fixing device of any one of the preceding claims.
Assembling a rotary compressor, namely 1, assembling a pump body assembly, assembling a lower bearing, a cylinder, an upper bearing, a crankshaft, a roller and the like, locking the lower bearing, the cylinder, the upper bearing, the crankshaft, the roller and the like through screws, and welding and connecting the outer circle of the upper bearing and a shell; 2. the rotor is in interference fit with the crankshaft, the stator is fixedly assembled with the shell, and the installation height of the stator constraint end face from the shell is H; 3. the upper cover, the lower cover, the liquid distributor, the shell and the like are welded and sealed.
According to the invention, through the structure of the cover body, the main body part and the extension part of the cover body are connected with and covered on one end of the shell, the extension part extends into the shell and is abutted against one end of the stator core, and can be fixedly connected with the shell through the main body part, the extension part effectively extends into the shell and is effectively abutted and fixed on the stator core, and can effectively abut against the upper end surface of the stator after being assembled, so that the axial vibration of the stator is restrained, meanwhile, the rigidity of the stator is improved, the vibration amplitude of the stator is reduced, the vibration transmission and the noise radiation of the stator are reduced, the noise of the rotary compressor is effectively reduced, and the noise quality; the upper cover (cover body) is provided with a sealing part (main body part) and a ring pressing part (extension part), wherein the sealing part is in welding fit with the shell to play a role in sealing the shell, and the ring pressing part is in contact fit with the stator to play a role in restraining axial vibration of the stator, so that the rigidity of the stator is improved, the vibration amplitude of the stator is reduced, and the vibration transmission and noise radiation of the stator are reduced.
The invention strengthens the restraint of the motor stator of the rotary compressor and reduces the vibration of the motor stator of the rotary compressor; the noise of the rotary compressor is reduced, and the noise quality of the rotary compressor is improved.
The invention also provides an electric machine comprising a stator fixing device as defined in any one of the preceding claims.
By the aid of the motor stator structure, axial vibration of the motor stator is greatly inhibited, the rigidity of the stator is improved, and deformation can be remarkably reduced under the condition of bearing the same excitation force. Therefore, the vibration amplitude of the stator is reduced, the vibration transmission and the noise radiation of the stator are reduced, and the noise quality of the rotary compressor is improved.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.
Claims (10)
1. A stator fixing device is characterized in that: the method comprises the following steps:
stator core (11), casing (2) and lid (3), stator core (11) set up the inside of casing (2), just the periphery wall of stator core (11) with the internal perisporium of casing (2) is connected, lid (3) include main part (31) and extension (32), extension (32) with main part (31) are connected, main part (31) lid is established and is fixed the one end of casing (2), extension (32) extend the entering the inside of casing (2), and with the one end butt of stator core (11).
2. The stator fixing apparatus according to claim 1, wherein:
the shell (2) is a cylinder, and the main body part (31) is of a circular plate structure and is matched with the shape of the shell (2).
3. The stator fixing apparatus according to claim 1, wherein:
the extension part (32) is of a cylindrical structure, and one axial end of the extension part (32) of the cylindrical structure is fixedly connected with the main body part (31).
4. A stator fixing device according to claim 3, wherein:
the outer diameter of the extension (32) is smaller than the outer diameter of the main body (31); and/or the extension part (32) is integrally formed with the main body part (31).
5. The stator fixing apparatus according to claim 1, wherein:
the outer peripheral wall of the extension part (32) is in interference fit with the inner peripheral wall of the shell (2).
6. The stator fixing apparatus according to claim 1, wherein:
the length of extension (32) along the axial direction is H, the terminal surface that stator core (11) meet with main part (31) is first terminal surface (13), the terminal surface that casing (2) meet with main part (31) is second terminal surface (21), and the spacing distance between first terminal surface (13) and second terminal surface (21) is H, and has H-H ═ 0.1mm ~ 0.3 mm.
7. The stator fixing apparatus according to claim 1, wherein:
main part (31) lid is established the upper end of casing (2), and from last make to down extension (32) installation get into the inside of casing (2), until with stator core (11) butt.
8. The stator fixing apparatus according to claim 1, wherein:
the main body part (31) is in welded fit with the shell (2); and/or the stator further comprises a coil structure (12), wherein the coil structure (12) is wound on the stator iron core (11) to form the stator (1).
9. A compressor, characterized by: comprising a stator fixing arrangement according to any of claims 1-8.
10. An electric machine characterized by: comprising a stator fixing arrangement according to any of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010801034.6A CN112104144A (en) | 2020-08-11 | 2020-08-11 | Stator fixing device, compressor and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010801034.6A CN112104144A (en) | 2020-08-11 | 2020-08-11 | Stator fixing device, compressor and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112104144A true CN112104144A (en) | 2020-12-18 |
Family
ID=73753509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010801034.6A Pending CN112104144A (en) | 2020-08-11 | 2020-08-11 | Stator fixing device, compressor and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112104144A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203691086U (en) * | 2013-12-09 | 2014-07-02 | 东明机电（深圳）有限公司 | Small-sized or miniature motor and elastic washer thereof |
| CN203774890U (en) * | 2014-03-31 | 2014-08-13 | 北京建筑大学 | Switch magnetic resistance motor |
| JP2016136818A (en) * | 2015-01-23 | 2016-07-28 | 株式会社デンソー | motor |
| CN109818437A (en) * | 2017-11-21 | 2019-05-28 | 三菱重工业株式会社 | Motor compressor |
| CN209709787U (en) * | 2019-05-27 | 2019-11-29 | 温州同庆车业股份有限公司 | Motor-vehicle fuel pump brushless motor |
| CN210404939U (en) * | 2019-07-29 | 2020-04-24 | 比亚迪股份有限公司 | Motor and vehicle |
| CN213072232U (en) * | 2020-08-04 | 2021-04-27 | 浙江联宜电机有限公司 | Axial positioning structure of small motor stator |
-
2020
- 2020-08-11 CN CN202010801034.6A patent/CN112104144A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203691086U (en) * | 2013-12-09 | 2014-07-02 | 东明机电（深圳）有限公司 | Small-sized or miniature motor and elastic washer thereof |
| CN203774890U (en) * | 2014-03-31 | 2014-08-13 | 北京建筑大学 | Switch magnetic resistance motor |
| JP2016136818A (en) * | 2015-01-23 | 2016-07-28 | 株式会社デンソー | motor |
| CN109818437A (en) * | 2017-11-21 | 2019-05-28 | 三菱重工业株式会社 | Motor compressor |
| CN209709787U (en) * | 2019-05-27 | 2019-11-29 | 温州同庆车业股份有限公司 | Motor-vehicle fuel pump brushless motor |
| CN210404939U (en) * | 2019-07-29 | 2020-04-24 | 比亚迪股份有限公司 | Motor and vehicle |
| CN213072232U (en) * | 2020-08-04 | 2021-04-27 | 浙江联宜电机有限公司 | Axial positioning structure of small motor stator |
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