CN112737189A - Motor end cover and motor - Google Patents
Motor end cover and motor Download PDFInfo
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- CN112737189A CN112737189A CN202110011926.0A CN202110011926A CN112737189A CN 112737189 A CN112737189 A CN 112737189A CN 202110011926 A CN202110011926 A CN 202110011926A CN 112737189 A CN112737189 A CN 112737189A
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- 230000007423 decrease Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000005489 elastic deformation Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010009 beating Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The utility model relates to the technical field of electric motor, the application discloses a motor end cover and motor, including a plurality of meshing teeth and the meshing groove that can counterpoint with the frame meshing, each meshing teeth and meshing groove center on the axle center of motor end cover distributes, meshing teeth and meshing groove distribute in turn each other. According to the invention, because the meshing teeth have manufacturing errors, slight interference or tiny gaps are generated between certain contact surfaces, when the motor end cover and the base are assembled, the meshing teeth are tightly attached under axial pressure, and the contact surfaces of the meshing teeth generate slight elastic deformation, so that the manufacturing errors of the meshing teeth are evenly distributed, the deviations of the meshing teeth in multiple directions such as the radial direction and the axial direction are compensated, the integral assembly precision of the meshing teeth is improved, and the assembly accumulated error between the motor end cover and the base is effectively reduced.
Description
Technical Field
The present application relates generally to a motor, and more particularly, to a motor end cap and a motor.
Background
The motor is a common device for converting electric energy into mechanical energy, in the aspect of structure, the coaxiality of a motor base and an end cover is guaranteed by means of matching of a spigot, and the spigot joint end face is a base face assembled between motor shafts and needs to be in close contact with the base face, otherwise, the damage of overlarge motor vibration can be caused. However, in order to facilitate the installation and the disassembly, a certain gap needs to be left on the end face of the spigot, so that the selection of a proper high-precision matching mode is extremely important.
The motor base and the end cover are in transition fit and are connected through screw holes. And knocking the end cover bearing part along the circumference by using a hammer, aligning and fixing the screw hole position after the end cover part enters the machine base, installing a screw into the end cover fixing hole and screwing the screw by using a spanner. However, the spigot fitting installation mode can cause accumulated errors to be generated after the two ends of the base and the front and rear end covers are assembled, so that the coaxiality precision of the motor base and the end covers cannot be guaranteed, the centering of a stator and a rotor in the motor is influenced, and the vibration and the noise of the motor are increased. Moreover, the end cover needs to be knocked by a hammer along the circumference with uniform force, otherwise, installation errors are easy to cause, and the motor using the installation method has the defect of inconvenient disassembly.
In view of the above, it is desirable to improve the matching structure of the motor and the end cover in the prior art to reduce the assembly error.
Disclosure of Invention
One of the main objects of the present application is to overcome the defect of large assembly error of the matching structure of the motor and the end cover in the prior art, and provide a motor end cover and a motor.
The invention provides a motor end cover which comprises a plurality of meshing teeth and meshing grooves, wherein the meshing teeth and the meshing grooves can be meshed and aligned with a base, the meshing teeth and the meshing grooves are distributed around the axis of the motor end cover, and the meshing teeth and the meshing grooves are alternately distributed.
According to an embodiment of the present invention, a positioning surface is connected between the meshing teeth and the meshing teeth, and the positioning surface is a plane, a concave arc surface, or a convex arc surface.
Further, in the above embodiment, the positioning surface forms an included angle with the axial direction of the motor, and the included angle is in a range of 20-40 °.
Further, in the above embodiment, the positioning surface is a cylindrical surface, and the diameter of the cylindrical surface is 2-3 times the outer diameter of the motor end cover.
According to an embodiment of the present invention, the engaging tooth further includes a first face and a second face, the first face and the second face being parallel to an axial direction of the motor, and a distance between the first face and the second face being a thickness of the engaging tooth.
Further, in the above embodiment, the first surface and the second surface are both cylindrical surfaces with the axis of the motor as a central axis, the diameter of the first surface is D, the diameter of the second surface is D, and when D is less than or equal to 180mm, D is less than or equal to 0.02D and less than or equal to 0.03D; when D is more than 180mm and less than or equal to 225mm, D is more than or equal to 0.03D and less than or equal to 0.035D.
Or further, in the above embodiment, the first surface and the second surface are planes, a distance between the first surface and the central axis of the motor is D, a distance between the second surface and the central axis of the motor is D, and when D is less than or equal to 180mm, D is greater than or equal to 0.02D and less than or equal to 0.03D; when D is more than 180mm and less than or equal to 225mm, D is more than or equal to 0.03D and less than or equal to 0.035D.
According to an embodiment of the present invention, the height of the first surface is greater than the height of the second surface, and the tooth top of the meshing tooth is inclined and gradually decreases from the first surface to the second surface.
According to an embodiment of the invention, the motor end cover is provided with at least two connecting parts, and the connecting parts are provided with connecting holes for being matched with the connecting pieces.
The invention also provides a motor which comprises a base and the motor end cover with the structure, wherein the base is provided with a plurality of positioning teeth and positioning grooves, the positioning teeth and the positioning grooves are alternately distributed along the axis of the base, the positioning teeth are in splicing fit with the meshing grooves, and the positioning grooves are in splicing fit with the meshing teeth.
According to an embodiment of the invention, the height of the axis of the machine base is 80-225mm, and the height of the positioning teeth is 3-6 mm.
According to the technical scheme, the motor end cover and the motor have the advantages and positive effects that: because the meshing teeth have manufacturing errors, slight interference or tiny gaps are generated between certain contact surfaces, when the motor end cover is assembled with the base, the meshing teeth are tightly attached under axial pressure, and the contact surfaces of the meshing teeth generate slight elastic deformation, so that the manufacturing errors of the meshing teeth are evenly distributed, the deviations of the meshing teeth in multiple directions such as the radial direction and the axial direction are compensated, the integral assembly precision of the meshing teeth is improved, and the assembly accumulated error between the motor end cover and the base is effectively reduced.
And moreover, by utilizing the meshing teeth, the rabbets are matched without beating during installation, and only the motor end covers need to be aligned and kept in a positioning state, and then the next step of fastening connection is carried out, so that the assembly and disassembly efficiency is effectively improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a motor end cover according to an exemplary embodiment.
Fig. 2 is a schematic diagram illustrating the structure of each of the meshing teeth according to an exemplary embodiment.
FIG. 3 is an assembly view illustrating mating of meshing teeth according to an exemplary embodiment.
Fig. 4 is a structural cross-sectional view of each tooth in a radial plane, according to an exemplary embodiment.
Fig. 5 is a schematic structural view of a motor end cover according to another exemplary embodiment.
Fig. 6 is an exploded view of a housing and motor end cap shown in accordance with an exemplary embodiment.
FIG. 7 is a graph comparing bearing vibration for a motor shown in accordance with an exemplary embodiment and a conventional motor.
Fig. 8 is an exploded view of a noise structure of a motor and a conventional motor shown according to an exemplary embodiment.
Wherein the reference numerals are as follows:
100. a motor end cover; 110. meshing teeth; 111. positioning the surface; 112. a first side; 113. a second face; 120. an engagement groove; 130. a connecting portion; 140. a connecting member; 200. a machine base.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In order to overcome the defect that the motor in the prior art has larger vibration and noise due to the assembly error of the end cover and the base 200, as shown in fig. 1 and fig. 2, the invention discloses a motor end cover 100, which comprises a plurality of meshing teeth 110 and meshing grooves 120 capable of meshing with the base 200 in an alignment manner, wherein each meshing tooth 110 and each meshing groove 120 are distributed around the axis of the motor end cover 100, and the meshing teeth 110 and the meshing grooves 120 are alternately distributed.
According to the technical scheme provided by the invention, because the meshing teeth 110 have manufacturing errors, slight interference or tiny gaps are generated between certain contact surfaces, when the motor end cover 100 and the base 200 are assembled, the meshing teeth 110 are tightly attached under axial pressure, and the contact surfaces of the meshing teeth 110 are slightly elastically deformed, so that the manufacturing errors of the meshing teeth 110 are evenly distributed, the deviation of the meshing teeth 110 in multiple directions such as the radial direction and the axial direction is compensated, the integral assembly precision of the meshing teeth 110 is improved, and the assembly accumulated error between the motor end cover 100 and the base 200 is effectively reduced.
Moreover, by using the engaging teeth 110, the rabbets are matched without beating during installation, and only the motor end cover 100 needs to be aligned and kept in a positioning state, and then the next fastening connection is carried out, so that the assembling and disassembling efficiency is effectively improved.
The characteristics of the arc end tooth structure and the motor are combined, the modulus m is selected to be 7-8, the too small modulus can increase the number of teeth, and the processing efficiency is reduced; an excessively large modulus may result in a reduction in the number of teeth, reducing the average spring effect between the teeth and thereby affecting the motor coaxiality accuracy. The formula for the number of teeth N is:
preferably, as shown in fig. 2 to 4, a positioning surface 111 is connected between the engaging tooth 110 and the engaging groove 120, and the positioning surface 111 is a flat surface, a concave arc surface, or a convex arc surface. The positioning surface 111 is used to connect the tooth 110 and the tooth groove 120, and the concave-convex structure formed by the tooth 110 and the tooth groove 120 is transited by the structure of the positioning surface 111 itself. The positioning surface 111 can be configured as a plane surface and a cambered surface, and the positioning surface 111 can perform automatic positioning and centering functions by utilizing the structure thereof, so that the meshing teeth 110 are matched with the meshing grooves 120. If the positioning surface 111 is set to be arc-shaped, the positioning effect can be further improved due to the arc-shaped structural characteristics, and impact damage and friction can be reduced. As shown in fig. 5, the positioning surface 111 may be a plane perpendicular to the tooth top, so that the engaging teeth 110 are square teeth, thereby improving the anti-dislocation effect.
Further, as shown in fig. 4, the positioning surface 111 forms an angle with the axial direction of the motor, and the angle ranges from 20 ° to 40 °. The structural feature of locating surface 111 has played the decision function to the pressure between the meshing tooth 110, and when the axial of locating surface 111 and motor formed the contained angle, meshing tooth 110 born the pressure direction for the incline direction, formed the contained angle (pressure angle theta) with the tooth height direction, and meshing tooth 110's both sides all can receive pressure moreover, and the transverse pressure (perpendicular with axial pressure) that the locating surface 111 of both sides received like this can offset each other, and then only remain axial pressure. The pressure angle theta refers to an included angle between the tooth height h direction and the tooth surface (namely the positioning surface 111) direction, the separating force of a small pressure angle is small, the strength of a large pressure angle is high, and the pressure angle of 20-40 degrees gives consideration to the separating force and the strength, so that the optimal selection of the structure of the meshing tooth 110 is realized.
Further, the positioning surface 111 is a cylindrical surface, and the diameter of the cylindrical surface is 2-3 times of the outer diameter of the motor end cover 100. In this embodiment, the positioning surface 111 is a cylindrical surface, and the axis of the cylindrical surface can converge at a certain point by combining the above-mentioned angle structure, so that the arc surface is utilized to play a positioning and centering role, and the positioning device has the characteristic of being convenient for splicing and meshing. R is the radius of the circular arc of the positioning surface 111 of the tooth 110, and this value is calculated by the machining principle of the circular arc end tooth. The radius of the cylindrical surface should not be too small, and the too small not only can increase the processing difficulty, but also can increase the assembly difficulty. The diameter of the arc surface is matched with the specific model and size of the motor end cover 100 by taking the outer diameter of the motor end cover 100 as a reference standard, so that the application effect is improved.
As shown in fig. 1 and 2, the tooth 110 preferably further includes a first surface 112 and a second surface 113, the first surface 112 and the second surface 113 are parallel to the axial direction of the motor, and the distance between the first surface 112 and the second surface 113 is the thickness of the tooth 110. Because the motor end cover 100 is of a circular structure, the first surface 112 and the second surface 113 are arranged to be parallel to the axial direction of the motor, so that a circular or approximately circular assembly space is formed after the meshing teeth 110 are butted, and the assembly of the rotating shaft and the bearing inside is facilitated. The first surface 112 and the second surface 113 are connected to each other at both sides of the tooth 110 by the positioning surfaces 111.
Furthermore, the first surface 112 and the second surface 113 are both cylindrical surfaces taking the axis of the motor as a central axis, the diameter of the first surface 112 is D, the diameter of the second surface 113 is D, and when D is less than or equal to 180mm, D is less than or equal to 0.02D and less than or equal to 0.03D; when D is more than 180mm and less than or equal to 225mm, D is more than or equal to 0.03D and less than or equal to 0.035D.
Or the first surface 112 and the second surface 113 are planes, the distance between the first surface 112 and the central axis of the motor is D, the distance between the second surface 113 and the central axis of the motor is D, and when D is less than or equal to 180mm, D is less than or equal to 0.03D and is greater than or equal to 0.02D; when D is more than 180mm and less than or equal to 225mm, D is more than or equal to 0.03D and less than or equal to 0.035D.
The thickness and the assembly difficulty of the meshing teeth 110 are determined by the first surface 112 and the second surface 113, the greater the thickness is, the greater the assembly difficulty is, in this embodiment, the thickness of the meshing teeth 110 is based on the size of the motor end cover 100, and the greater the size of the motor end cover 100 is, the greater the diameter D of the first surface 112 is, so that the thickness of the meshing teeth 110 can be flexibly set according to the specific structures of the motor and the motor end cover 100, and the parameter proportion can avoid the problems of too high processing cost and too heavy weight of the base 200.
Preferably, the height of the first surface 112 is greater than that of the second surface 113, and the tooth top of the meshing tooth 110 is inclined and gradually decreases from the first surface 112 to the second surface 113. The height of the tooth top is gradually reduced from outside to inside along the radial direction, namely, the planes of the tooth tops of the meshing teeth 110 can be converged at a certain point of the axis of the motor, and the self structure is utilized to play a centering role, so that the meshing teeth 110 are prevented from being staggered.
Preferably, the motor end cover 100 is provided with at least two connection parts 130, and the connection parts 130 are provided with connection holes for fitting with the connection members 140. Connecting portion 130 can be extended from the periphery of motor end cover 100 and obtain, makes through integrated into one piece, and connecting piece 140 is connected fixedly through the connecting hole with frame 200, also can set up in the structure of connecting portion 130 laminating on the frame 200, improves the stability and the fastness of connecting.
As shown in fig. 6, the present invention further discloses a motor, which comprises a base 200 and the motor end cover 100 with the above structure, wherein the base 200 is provided with a plurality of positioning teeth 210 and positioning grooves 220, the positioning teeth 210 and the positioning grooves 220 are alternately distributed along the axis of the base 200, the positioning teeth 210 are in insertion fit with the engaging grooves 120, and the positioning grooves 220 are in insertion fit with the engaging teeth 110.
The motor end caps 100 are disposed at one end or both ends of the base 200, and are used to fix the motor housing after the internal components are assembled. The motor end cover 100 and the base 200 are engaged with each other and fastened by a plurality of bolts passing through the connection holes and the through holes of the base 200.
Preferably, the height of the axle center of the base 200 is 80-225mm, and the height of the positioning teeth is 3-6 mm. The axial height of the base 200 basically determines the size of the base 200 and the outer diameter of the motor end cover 100, the tooth height of the positioning teeth 210 is 3-6mm, the positioning teeth 210 and the meshing grooves 120 can be completely meshed in a closed mode, and tooth top gaps are not left in the tooth height h direction.
As shown in fig. 7 and 8, the dotted line represents the test data of the conventional motor (the motor end cover 100 and the base 200 are bolted together), and the solid line represents the test data of the present application, it can be seen that the structure of the present application can reduce the bearing vibration and noise, and the difference between them is particularly significant at 2000rmp-3000rmp when the motor speed increases.
According to the technical scheme, the motor end cover 100 and the motor have the advantages and positive effects that: when the motor end cover 100 and the base 200 are assembled, due to manufacturing errors of the meshing teeth 110, slight interference or slight gaps are generated between certain contact surfaces, when the meshing teeth 110 are tightly attached under axial pressure, the contact surfaces of the meshing teeth 110 are slightly elastically deformed, so that the manufacturing errors of the meshing teeth 110 are evenly distributed, deviations of the meshing teeth 110 in multiple directions of the radial direction, the axial direction and the positioning surface 111 are compensated, the overall assembly accuracy of the meshing teeth 110 is improved, and the assembly accumulated error between the motor end cover 100 and the base 200 is effectively reduced.
Moreover, by using the engaging teeth 110, the rabbets are matched without beating during installation, and only the motor end cover 100 needs to be aligned and kept in a positioning state, and then the next fastening connection is carried out, so that the assembling and disassembling efficiency is effectively improved.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention to enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (11)
1. The motor end cover (100) is characterized by comprising a plurality of meshing teeth (110) and meshing grooves (120) which can be meshed and aligned with a base (200), wherein the meshing teeth (110) and the meshing grooves (120) are distributed around the axis of the motor end cover (100), and the meshing teeth (110) and the meshing grooves (120) are alternately distributed.
2. The end cover (100) of the motor according to claim 1, wherein a positioning surface (111) is connected between the meshing teeth (110) and the meshing grooves (120), and the positioning surface (111) is a plane surface, a concave arc surface or a convex arc surface.
3. The end cover (100) of the motor according to claim 2, wherein the locating surface (111) forms an angle with the axial direction of the motor, the angle being in the range of 20 ° to 40 °.
4. The motor end cover (100) according to claim 2, wherein the locating surface (111) is a cylindrical surface, and the diameter of the cylindrical surface is 2-3 times the outer diameter of the motor end cover (100).
5. The motor end cover (100) of claim 1, wherein the meshing tooth (110) further comprises a first face (112) and a second face (113), the first face (112) and the second face (113) being parallel to an axial direction of the motor, the first face (112) and the second face (113) being spaced apart by a thickness of the meshing tooth (110).
6. The end cover (100) of the motor as claimed in claim 5, wherein the first face (112) and the second face (113) are both cylindrical surfaces with the axis of the motor as a central axis, the diameter of the first face (112) is D, the diameter of the second face (113) is D, and when D is less than or equal to 180mm, D is less than or equal to 0.02D and less than or equal to 0.03D; when D is more than 180mm and less than or equal to 225mm, D is more than or equal to 0.03D and less than or equal to 0.035D.
7. The end cover (100) of the motor according to claim 5, wherein the first face (112) and the second face (113) are planes, the first face (112) is at a distance D from a motor central axis, the second face (113) is at a distance D from the motor central axis, and when D is less than or equal to 180mm, D is less than or equal to 0.02D and less than or equal to 0.03D; when D is more than 180mm and less than or equal to 225mm, D is more than or equal to 0.03D and less than or equal to 0.035D.
8. The motor end cover (100) according to claim 5, wherein the height of the first face (112) is greater than the height of the second face (113), and the tooth tops of the meshing teeth (110) are inclined and gradually decrease from the first face (112) to the second face (113).
9. The motor end cover (100) according to claim 1, wherein the motor end cover (100) is provided with at least two connecting portions (130), and the connecting portions (130) are provided with connecting holes for being adapted with connecting pieces (140).
10. An electric motor, characterized in that, including the motor end cover (100) of any claim 1-9 and the frame (200), the frame (200) is provided with a plurality of positioning teeth (210) and positioning grooves (220), the positioning teeth (210) and the positioning grooves (220) are alternately distributed along the axis of the frame (200), the positioning teeth (210) and the meshing grooves (120) are in plug-in fit, and the positioning grooves (220) and the meshing teeth (110) are in plug-in fit.
11. The electric machine according to claim 10, characterized in that the height of the axis of the housing (200) is 80-225mm and the height of the positioning teeth (210) is 3-6 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110011926.0A CN112737189A (en) | 2021-01-06 | 2021-01-06 | Motor end cover and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110011926.0A CN112737189A (en) | 2021-01-06 | 2021-01-06 | Motor end cover and motor |
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| Publication Number | Publication Date |
|---|---|
| CN112737189A true CN112737189A (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110011926.0A Pending CN112737189A (en) | 2021-01-06 | 2021-01-06 | Motor end cover and motor |
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| CN (1) | CN112737189A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200713758A (en) * | 2005-09-23 | 2007-04-01 | Hon Hai Prec Ind Co Ltd | Fan |
| CN107614890A (en) * | 2015-05-29 | 2018-01-19 | 日本电产株式会社 | Air-supply arrangement and dust catcher |
| CN108988550A (en) * | 2018-07-31 | 2018-12-11 | 浙江美茵电机有限公司 | A kind of high thrust direct current T-type band self-locking device electric pushrod motor |
| CN208257556U (en) * | 2018-06-27 | 2018-12-18 | 广东威灵电机制造有限公司 | Motor end cover component and motor |
| CN209016830U (en) * | 2017-09-28 | 2019-06-21 | 日本电产株式会社 | Motor |
| CN110971061A (en) * | 2018-09-29 | 2020-04-07 | 广东威灵电机制造有限公司 | Electric machine |
| CN210380610U (en) * | 2019-08-20 | 2020-04-21 | 东莞市顺合电机有限公司 | Fast-assembling oscillator motor |
| CN210686378U (en) * | 2019-09-09 | 2020-06-05 | 浙江奥正机电技术有限公司 | Centrifugal fan of dust collector |
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2021
- 2021-01-06 CN CN202110011926.0A patent/CN112737189A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200713758A (en) * | 2005-09-23 | 2007-04-01 | Hon Hai Prec Ind Co Ltd | Fan |
| CN107614890A (en) * | 2015-05-29 | 2018-01-19 | 日本电产株式会社 | Air-supply arrangement and dust catcher |
| CN209016830U (en) * | 2017-09-28 | 2019-06-21 | 日本电产株式会社 | Motor |
| CN208257556U (en) * | 2018-06-27 | 2018-12-18 | 广东威灵电机制造有限公司 | Motor end cover component and motor |
| CN108988550A (en) * | 2018-07-31 | 2018-12-11 | 浙江美茵电机有限公司 | A kind of high thrust direct current T-type band self-locking device electric pushrod motor |
| CN110971061A (en) * | 2018-09-29 | 2020-04-07 | 广东威灵电机制造有限公司 | Electric machine |
| CN210380610U (en) * | 2019-08-20 | 2020-04-21 | 东莞市顺合电机有限公司 | Fast-assembling oscillator motor |
| CN210686378U (en) * | 2019-09-09 | 2020-06-05 | 浙江奥正机电技术有限公司 | Centrifugal fan of dust collector |
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