CN107800228B - Motor assembly, centrifugal fan and air purifier - Google Patents
Motor assembly, centrifugal fan and air purifier Download PDFInfo
- Publication number
- CN107800228B CN107800228B CN201711131978.1A CN201711131978A CN107800228B CN 107800228 B CN107800228 B CN 107800228B CN 201711131978 A CN201711131978 A CN 201711131978A CN 107800228 B CN107800228 B CN 107800228B
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- China
- Prior art keywords
- motor
- limiting surface
- shell
- annular
- mounting post
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Links
- 230000035939 shock Effects 0.000 claims abstract description 29
- 238000013016 damping Methods 0.000 claims abstract description 19
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of household appliances, in particular to a motor assembly, a centrifugal fan and an air purifier, wherein the motor assembly comprises: a housing; the motor is arranged in the shell; damping structure sets up between casing and motor to radial, axial shock attenuation and spacing are carried out to the motor, carry out radial, axial shock attenuation and spacing to the motor through setting up damping structure between casing and motor, and then realized that the motor is at radial axial spacing and shock attenuation completely, guaranteed axiality when the motor is installed, have alleviateed the vibration of motor, and can cushion the vibration that the motor produced, guaranteed air purifier's steady operation, promoted user experience.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a motor assembly, a centrifugal fan and an air purifier.
Background
The motor is one of the core components of the air purifier, and the performance of the motor directly influences the performance of the whole air purifier in the use process.
Currently, the motor in an air cleaner is typically mounted in a motor mounting groove on a volute in a centrifugal fan, and then screwed by covering the motor cover. However, in the manufacturing process, the spiral case and the motor cover have gaps due to manufacturing precision errors, so that the motor which is installed cannot be completely limited, coaxiality cannot be guaranteed when the motor is installed, and larger vibration can be generated in the motor operation process, so that user experience is affected.
Disclosure of Invention
The invention mainly aims to provide a motor assembly, a centrifugal fan and an air purifier, so as to solve or at least reduce the problem of vibration of the motor assembly in the air purifier in the prior art.
To achieve the above object, the present invention provides a motor assembly comprising: a housing; the motor is arranged in the shell; the damping structure is arranged between the shell and the motor, so as to radially and axially damp and limit the motor.
Further, the damping structure at least comprises a damping pad, the damping pad comprises a body, a first inner annular limiting surface and a first outer annular limiting surface which are arranged on the body and take the axis of a motor shaft as the center of a circle, wherein the first inner annular limiting surface is in abutting arrangement with the annular side wall of the motor, and the first outer annular limiting surface is in abutting arrangement with the annular inner wall of the shell; and the second inner limiting surface and the second outer limiting surface are arranged on the body and are perpendicular to the motor shaft, wherein the second inner limiting surface is in abutting arrangement with the motor, and the second outer limiting surface is in abutting arrangement with the inner wall of the shell.
Further, the shock pad is provided between at least one of both ends of the motor in the axial direction and the housing.
Further, annular protrusions taking the axis of the motor shaft as the center of a circle are arranged at two ends of the motor along the axial direction, counter bores corresponding to the annular protrusions are formed in the shell, and the shock pad is arranged between the annular protrusions and the counter bores.
Further, the counter bore is in interference fit with the shock pad.
Further, the shell is further provided with a convex rib protruding towards the motor, and the convex rib is abutted with the second outer limiting surface of the shock pad so as to limit the shock pad in the axial direction of the motor.
Further, the number of the convex ribs is multiple, and the convex ribs are uniformly distributed on the motor cover.
Further, the housing includes: a volute having a motor mounting groove thereon; and the motor cover is arranged on the volute and is connected with the volute into a whole.
Further, the motor cover is provided with a first mounting column, the volute is provided with a second mounting column, screw holes for mounting screws are formed in the first mounting column and the second mounting column, and a limiting structure for limiting alignment of the screw holes is formed between the first mounting column and the second mounting column.
Further, the limiting structure comprises a limiting groove arranged on the first mounting column, and the notch of the limiting groove is suitable for the second mounting column to be inserted.
The embodiment also provides a centrifugal fan, which comprises a motor assembly, wherein the motor assembly is the motor assembly.
The embodiment also provides an air purifier, which comprises a centrifugal fan, wherein the centrifugal fan is the centrifugal fan.
The technical scheme of the invention has the following advantages:
1. According to the motor assembly, the centrifugal fan and the air purifier, the damping structure is arranged between the shell and the motor to perform radial and axial damping and limiting on the motor, so that the motor is completely limited and damped in the radial and axial directions, the coaxiality of the motor during installation is ensured, the vibration of the motor is reduced, the vibration generated by the motor can be buffered, the stable operation of the air purifier is ensured, and the user experience is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art. In the drawings:
FIG. 1 is a schematic cross-sectional view of a motor assembly according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an exploded view of a motor assembly according to an embodiment of the present invention;
Fig. 3 is a schematic view of the motor cover in the motor assembly shown in fig. 2.
Wherein, the reference numerals in the drawings are as follows:
10. A volute; 11. a motor mounting groove; 13. a second mounting post; 30. a motor; 50. a motor cover; 51. countersink; 55. convex ribs; 57. a first mounting post; 58. a limit groove; 70. a shock pad; 71. a first inner annular limiting surface; 72. a first outer annular limiting surface; 73. a second inner limiting surface; 74. and a second outer limit surface.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Example 1
As shown in fig. 1, the motor assembly in this embodiment is provided in the air purifier as part of a centrifugal fan to power the operation of the air purifier.
The motor assembly mainly comprises: a housing, a motor 30 and a shock absorbing structure. The motor 30 is arranged in the shell, the damping structure is arranged between the shell and the motor 30 to radially and axially damp and limit the motor 30, so that the shell can radially and axially damp and limit the motor 30 by arranging the damping structure between the shell and the motor 30 under the condition of manufacturing precision errors, the motor 30 is completely limited and damped in the radial and axial directions, the coaxiality of the motor 30 during installation is ensured, the vibration of the motor 30 is reduced, the vibration generated by the motor 30 can be buffered, the stable operation of the air purifier is ensured, and the user experience is improved.
As shown in fig. 1 and 2, the housing in the present embodiment specifically includes: a scroll case 10 having a motor installation groove 11 thereon, the motor 30 being installed in the motor installation groove 11; a motor cover 50, which is provided on the scroll case 10, integrally connected with the scroll case 10 for fastening the motor 30 in the motor mounting groove 11.
For how the damping structure realizes radial and axial damping and limiting of the motor 30, the damping structure specifically comprises a damping pad 70 arranged between the motor 30 and the motor cover 50, the damping pad 70 comprises a body, and a first inner annular limiting surface 71 and a first outer annular limiting surface 72 which are arranged on the body and take the axis of the motor shaft as the center of a circle. The first inner annular limiting surface 71 is in abutting arrangement with the annular side wall of the motor 30, the first outer annular limiting surface 72 is in abutting arrangement with the annular inner wall of the shell, and further the shock pad 70 can respectively limit the shell and the motor 30 in the radial direction of the motor 30, and further the limit between the motor 30 and the shell in the radial direction is limited by the shock pad 70; the shock pad 70 further includes a second inner limiting surface 73 and a second outer limiting surface 74 disposed perpendicular to the motor shaft. The second inner limiting surface 73 is in abutting arrangement with the motor 30, the second outer limiting surface 74 is in abutting arrangement with the inner wall of the housing, and the shock pad 70 can respectively limit the housing and the motor 30 in the axial direction of the motor, and further limit the motor 30 relative to the housing in the axial direction is limited by the shock pad 70.
Specifically, the shock pad 70 may be provided between one of both ends of the motor 30 in the axial direction and the housing, for example, between the motor 30 and the motor cover 50.
With further reference to fig. 3, preferably, annular protrusions with the axle center of the motor shaft as the center are arranged at two ends of the motor 30 along the axial direction, concave positions corresponding to the annular protrusions are formed on the shell, the concave positions are formed by counter bores 51 on the shell, the shock pad 70 is arranged between the annular protrusions and the counter bores 51, the annular protrusions are arranged on the motor 30, the counter bores 51 are arranged on the motor cover 50, and therefore limiting between the motor 30 and the shock pad 70 and limiting between the motor cover 50 and the shock pad 70 can be achieved, and meanwhile cost for arranging and manufacturing the shock absorbing structure can be reduced.
Preferably, the counter bore 51 is in interference fit with the shock pad 70, so that the accuracy and reliability of limiting can be guaranteed.
Preferably, the housing further has a protruding rib 55 protruding toward the motor 30, and the protruding rib 55 abuts against the second outer limiting surface 74 of the shock pad 70 to limit the shock pad 70 in the axial direction of the motor 30, so that when the protruding rib 55 is matched, the protruding rib 55 can be embedded into the shock pad 70 to form reliable matching and limiting. Specifically, the number of the ribs 55 is plural, and the ribs are uniformly distributed on the motor cover 50, so that the uniformity of stress during limiting is ensured, and the overall strength of the motor cover 50 can be improved.
For how to install between the motor cover 50 and the spiral case 10, a first mounting column 57 is formed on the motor cover 50, a second mounting column 13 is formed on the spiral case 10, screw holes for mounting screws are formed on the first mounting column 57 and the second mounting column 13, after the screw holes on the first mounting column 57 and the second mounting column 13 are aligned, screw fastening can be directly performed, preferably, a limiting structure for limiting screw hole alignment is formed between the first mounting column 57 and the second mounting column 13, and further, when the motor cover 50 and the spiral case 10 are installed, alignment between the motor cover 50 and the spiral case 10 can be realized quickly, and the assembly efficiency of a motor assembly is improved.
The specific limiting structure comprises a limiting groove 58 arranged on the first mounting column 57, and the notch of the limiting groove 58 is suitable for the second mounting column 13 to be inserted.
Example 2
The present embodiment also provides a centrifugal fan, including a motor assembly, where the motor assembly is a motor assembly as described above, and further, the centrifugal fan in the present embodiment should also have advantages of the motor assembly in the above embodiment, which is not described herein again.
Example 3
The air purifier in this embodiment includes a centrifugal fan, where the centrifugal fan is the centrifugal fan as described above, and further has advantages of the centrifugal fan, and the air purifier in this embodiment should also have advantages, which are not described herein.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (7)
1. An electric motor assembly, comprising:
a housing;
A motor (30) disposed within the housing;
the damping structure is arranged between the shell and the motor (30) to radially and axially damp and limit the motor (30);
The damping structure at least comprises a damping pad (70), wherein the damping pad (70) comprises a body, a first inner annular limiting surface (71) and a first outer annular limiting surface (72) which are arranged on the body and take the axis of a motor shaft as the center of a circle, the first inner annular limiting surface (71) is in abutting arrangement with the annular side wall of the motor (30), and the first outer annular limiting surface (72) is in abutting arrangement with the annular inner wall of the shell; the second inner limiting surface (73) and the second outer limiting surface (74) are arranged on the body and are perpendicular to the motor shaft, the second inner limiting surface (73) is in abutting arrangement with the motor (30), and the second outer limiting surface (74) is in abutting arrangement with the inner wall of the shell;
Annular protrusions taking the axis of the motor shaft as the center of a circle are arranged at two ends of the motor (30) along the axial direction, counter bores (51) corresponding to the annular protrusions are formed in the shell, the shock pad (70) is arranged between the annular protrusions and the counter bores (51), and the counter bores (51) are in interference fit with the shock pad (70);
The shell is further provided with a convex rib (55) protruding towards the direction of the motor (30), and the convex rib (55) is abutted with the second outer limiting surface (74) of the shock pad (70) so as to limit the shock pad (70) in the axial direction of the motor (30).
2. Motor assembly according to claim 1, characterized in that the shock pad (70) is provided between the housing and at least one of the two ends of the motor (30) in the axial direction.
3. The motor assembly of claim 1 or 2, wherein the housing comprises:
a volute (10) having a motor mounting groove (11) thereon;
a motor cover (50) which is arranged on the volute (10) and is connected with the volute (10) into a whole,
The number of the convex ribs (55) is a plurality, and the convex ribs are uniformly distributed on the motor cover (50).
4. A motor assembly according to claim 3, wherein the motor cover (50) is formed with a first mounting post (57), the volute (10) is formed with a second mounting post (13), screw holes for mounting screws are formed in both the first mounting post (57) and the second mounting post (13), and a limiting structure for limiting alignment of the screw holes is formed between the first mounting post (57) and the second mounting post (13).
5. The motor assembly according to claim 4, characterized in that the limit structure comprises a limit groove (58) provided on the first mounting post (57), the notch of the limit groove (58) being adapted to the insertion of the second mounting post (13).
6. A centrifugal fan comprising a motor assembly according to any one of claims 1 to 5.
7. An air cleaner comprising the centrifugal fan of claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711131978.1A CN107800228B (en) | 2017-11-15 | 2017-11-15 | Motor assembly, centrifugal fan and air purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711131978.1A CN107800228B (en) | 2017-11-15 | 2017-11-15 | Motor assembly, centrifugal fan and air purifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107800228A CN107800228A (en) | 2018-03-13 |
| CN107800228B true CN107800228B (en) | 2024-10-18 |
Family
ID=61536077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711131978.1A Active CN107800228B (en) | 2017-11-15 | 2017-11-15 | Motor assembly, centrifugal fan and air purifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107800228B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3089933B1 (en) * | 2018-12-14 | 2021-09-10 | Alstom Transp Tech | Railway vehicle engine and engine installation method |
| CN109578759B (en) * | 2019-01-25 | 2023-12-15 | 吉林大学 | A passive vibration reduction aspherical lens push-broom swing-sweep aerial camera |
| CN110460189A (en) * | 2019-08-16 | 2019-11-15 | 珠海格力电器股份有限公司 | Power component and wind wheel device |
| CN111162626A (en) * | 2020-01-21 | 2020-05-15 | 珠海格力电器股份有限公司 | An air outlet device and an air purifier |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222303A (en) * | 2015-11-04 | 2016-01-06 | 珠海格力电器股份有限公司 | Air purifier's motor mounting structure, fan subassembly and air purifier |
| CN205160270U (en) * | 2015-11-06 | 2016-04-13 | 广东新宝电器股份有限公司 | Motor amortization wind channel |
| CN207652166U (en) * | 2017-11-15 | 2018-07-24 | 珠海格力电器股份有限公司 | Motor element, centrifugal fan and air purifier |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200812198A (en) * | 2006-08-21 | 2008-03-01 | Sunonwealth Electr Mach Ind Co | Shock-prevention structure of motor |
| CN102720707A (en) * | 2012-06-21 | 2012-10-10 | 江苏超力电器有限公司 | Blower assembly of automotive air conditioning |
-
2017
- 2017-11-15 CN CN201711131978.1A patent/CN107800228B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222303A (en) * | 2015-11-04 | 2016-01-06 | 珠海格力电器股份有限公司 | Air purifier's motor mounting structure, fan subassembly and air purifier |
| CN205160270U (en) * | 2015-11-06 | 2016-04-13 | 广东新宝电器股份有限公司 | Motor amortization wind channel |
| CN207652166U (en) * | 2017-11-15 | 2018-07-24 | 珠海格力电器股份有限公司 | Motor element, centrifugal fan and air purifier |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107800228A (en) | 2018-03-13 |
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