CN110768412A - Assembly structure for connecting motor stator and end cover and motor - Google Patents
Assembly structure for connecting motor stator and end cover and motor Download PDFInfo
- Publication number
- CN110768412A CN110768412A CN201911106153.3A CN201911106153A CN110768412A CN 110768412 A CN110768412 A CN 110768412A CN 201911106153 A CN201911106153 A CN 201911106153A CN 110768412 A CN110768412 A CN 110768412A
- Authority
- CN
- China
- Prior art keywords
- end cover
- mounting
- arc surface
- stator
- hole
- 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
Images
Classifications
-
- 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
-
- 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
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/06—Cast metal casings
Abstract
The invention discloses an assembly structure for connecting a motor stator and an end cover and a motor, wherein the assembly structure comprises a stator and an end cover; the end cover is provided with an end cover inner hole, the excircle of the end cover extends outwards to form a plurality of mounting feet, and the mounting feet are provided with mounting bosses; the stator comprises a stator iron core and a winding; the stator core is provided with an iron core inner circular hole and a plurality of mounting holes; the mounting boss is provided with a mounting boss arc surface which is concentric with the inner hole of the end cover; the mounting hole is provided with a mounting hole circular arc surface which is coaxial with the inner circular hole of the iron core; the arc surface of the mounting boss is matched with the arc surface of the mounting hole, so that the end cover is assembled on the stator. The motor comprises the assembling structure for connecting the motor stator and the end cover. The motor has higher integral concentricity during assembly, enhances the concentricity of the stator and the rotor, effectively improves the air gap of the motor, reduces the electromagnetic vibration of the motor, reduces the electromagnetic noise, improves the product quality, improves the performance of the motor, improves the reliability of the product and reduces the cost.
Description
Technical Field
The invention relates to the technical field of motors, in particular to an assembly structure for connecting a motor stator and an end cover and a motor.
Background
With the increasingly strong competition of the motor industry, the shaded pole motor is widely applied to the fields of mobile air conditioners, dehumidifiers, refrigerators, electric fans and the like due to the advantages of small structure, simple process and the like. The shaded pole motor structure is generally shown in fig. 1, and at least comprises a stator 1 part, a rotor 3 part and an end cover 2, wherein an iron core is exposed out of the end cover 2 or a machine shell, the end cover 2 fixes the rotor 3 on the iron core, and the stator 1 is provided with a plurality of mounting round holes, so that the end cover 2 is positioned and mounted through the mounting round holes. In the industry, the end cap 2 is typically a cast part, and when the end cap 2 is a cast part, the following disadvantages exist: 1. in the aspects of structure and actual production, the end cover has the advantages that due to the shrinkage deformation of materials in the casting process, if the end cover is machined again, a reference surface cannot be found, the measurement difficulty of supplied materials is high, the measurement is not accurate, the position degree of the end cover and a stator matching mounting pin is difficult to meet the product requirement, the quality abnormity such as the blocking of batch motors, the sweeping of a hall and the like occurs in the production process, the rework cost and the raw material scrap cost of products are greatly increased, and the production efficiency is obviously reduced; 2. in the aspect of performance, this structural installation is because the installation foot that the end cover itself extends can't guarantee with the concentricity of bearing room, and the end cover later stage processing degree of difficulty is big, leads to the air gap inequality after the installation, makes motor electromagnetic vibration strengthen, leads to quality such as electromagnetic noise unusual, influences user experience, has the quality hidden danger, and the reliability is low to lead to motor overall cost to increase.
Disclosure of Invention
The invention aims to solve the problems and provides an assembly structure for connecting a motor stator and an end cover and a motor, so as to improve the concentricity of the end cover and an iron core, improve the machinability of the end cover, enhance the concentricity of a stator and a rotor, effectively improve the air gap of the motor, improve the reliability of a product, reduce the cost and the like.
In order to achieve the purpose, the technical scheme of the invention is as follows:
an assembly structure for connecting a motor stator and an end cover comprises the stator and the end cover; the end cover is provided with an end cover inner hole, a plurality of mounting feet extend outwards from the excircle of the end cover, and mounting bosses are arranged on the mounting feet; the stator comprises a stator iron core and a winding; the stator core is provided with an inner circular hole of the core and a plurality of mounting holes for mounting the end cover so that the mounting bosses of the end cover can be embedded in the mounting holes; the mounting boss is provided with a mounting boss arc surface which is concentric with the inner hole of the end cover; the mounting hole is provided with a mounting hole circular arc surface which is coaxial with the inner circular hole of the iron core; the mounting boss arc surface is matched with the mounting hole arc surface, so that the end cover is assembled on the stator through the matching of the mounting boss arc surface and the mounting hole arc surface.
As an improvement to the above technical solution, the arc surface of the mounting boss may be an inner arc surface or an outer arc surface of the mounting boss, the inner arc surface refers to a surface close to the center of the inner hole of the end cover, the outer arc surface refers to a surface far from the center of the inner hole of the end cover, and at least one of the inner arc surface or the outer arc surface is concentric with the inner hole of the end cover; the arc surface of the mounting hole can be an inner arc surface or an outer arc surface of the mounting hole, the inner arc surface is a surface close to the center of the inner circular hole of the iron core, the outer arc surface is a surface far away from the center of the inner circular hole of the iron core, and at least one of the inner arc surface or the outer arc surface is concentric with the center of the inner circular hole of the iron core.
As an improvement to the technical scheme, the width of the arc surface of the mounting boss is smaller than that of the arc surface of the mounting hole.
As an improvement to the above technical scheme, the number of the mounting bosses is at least two, and the mounting bosses are arranged on a concentric circle by taking the center of an inner hole of the end cover as a reference; the corresponding mounting holes are at least two and are arranged on a concentric circle by taking the center of the inner circular hole of the iron core as a reference.
As an improvement to the above technical scheme, the periphery of the end cover is provided with a reinforcing boss to reinforce and reinforce the end cover.
As an improvement on the technical scheme, the mounting foot is provided with a limiting boss and a fastening hole.
As an improvement on the technical scheme, a reinforcing rib is arranged between the excircle of the end cover and the mounting foot to reinforce the connection between the excircle of the end cover and the mounting foot.
As an improvement to the technical scheme, the height of a limiting boss of the mounting foot is set to be H, the height of an inner hole of the end cover is set to be H1, the height of the reinforcing rib is set to be H2, H is more than or equal to H1 and more than or equal to H2, namely the height of the limiting boss is more than or equal to the height of the inner hole of the end cover, and the height of the inner hole of the end cover is more than or equal to the height of the connecting reinforcing rib; the outer end face of the mounting foot refers to the face away from the stator when the end cover is mounted on the stator.
As an improvement to the above technical scheme, the end cover is a metal casting or a plastic casting.
As an improvement to the above technical solution, the present invention also provides a motor including the above assembly structure for connecting a motor stator and an end cover.
As an improvement to the above technical solution, the motor is a shaded pole motor.
Compared with the prior art, the invention has the advantages and positive effects that:
the invention discloses an assembling structure for connecting a motor stator and an end cover and a motor. The whole concentricity of motor is higher during the assembly, strengthens stator and rotor concentricity, and effectual improvement motor air gap has reduced motor electromagnetic vibration simultaneously, reduces electromagnetic noise, promotes product quality, improves motor performance, promotes product reliability, reduce cost etc..
Drawings
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 that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of a prior art stator and end cap assembly;
FIG. 2 is a schematic view of a stator and end cap assembly of the present invention;
FIG. 3 is a schematic structural view of a stator;
FIG. 4 is a schematic structural view of an end cap;
FIG. 5 is a perspective view of the end cap;
FIG. 6 is a side view of the end cap.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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 invention.
In the description of the invention, the singular is also intended to include the plural unless the context clearly dictates otherwise. The terms "comprises," "comprising," and "having" specify the presence of stated features, quantities, operations, elements, components, and/or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and/or combinations thereof.
Next, examples are described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 6, the assembly structure for connecting a motor stator and an end cover of the present invention includes a stator 1 and an end cover 2, wherein the end cover 2 is a metal casting or a plastic casting; the end cover 2 is provided with an end cover inner hole 21 (27 is a bearing chamber in fig. 4), the outer circle of the end cover 2 extends outwards to form a plurality of mounting feet 22, and the mounting feet 22 are provided with mounting bosses 221; the stator 1 comprises a stator core 11 and a winding 12; the stator core 11 is provided with a core inner circular hole 111 and a plurality of mounting holes 112 for mounting the end cover 2 so that the mounting bosses 221 of the end cover 2 are embedded; the mounting boss 221 is provided with a mounting boss arc surface which is concentric with the end cover inner hole 21; the mounting hole 112 has a mounting hole circular arc surface which is coaxial with the iron core inner circular hole 111; the mounting boss arc surface is matched with the mounting hole arc surface, so that the end cover 2 is assembled on the stator 1 through the matching of the mounting boss arc surface and the mounting hole arc surface.
In this embodiment, the arc surface of the mounting boss may be an inner arc surface 2211 or an outer arc surface 2212 of the mounting boss 221, the inner arc surface 2211 refers to a surface close to the center of the inner hole 21 of the end cover, the outer arc surface 2212 refers to a surface far from the center of the inner hole 21 of the end cover, and at least one of the inner arc surface 2211 or the outer arc surface 2212 is concentric with the inner hole 21 of the end cover; the mounting hole arc surface may be inner arc surface 1121 or outer arc surface 1122 of mounting hole 112, inner arc surface 1121 refers to a surface close to the center of core inner circular hole 111, outer arc surface 1122 refers to a surface away from the center of core inner circular hole 111, and at least one of inner arc surface 1121 or outer arc surface 1122 is concentric with the center of core inner circular hole 111. The width of the arc surface of the mounting boss is smaller than that of the arc surface of the mounting hole. The number of the mounting bosses 221 is at least two, and the mounting bosses are arranged on a concentric circle by taking the center of the inner hole 21 of the end cover as a reference; the corresponding mounting holes 112 are provided in a concentric circle with respect to the center of the core inner circular hole 111 as a minimum of two.
The periphery of the end cover 2 is provided with a reinforcing boss 23 to reinforce and reinforce the end cover 2. The mounting foot 22 is provided with a limiting boss 24 and a fastening hole 25. And a reinforcing rib 26 is arranged between the excircle of the end cover 2 and the mounting foot 22 so as to reinforce the connection between the excircle of the end cover and the mounting foot 22.
Setting the height of a limiting boss 221 of the mounting foot 22 as H, the height of an end cover inner hole 21 as H1 and the height of the reinforcing rib 26 as H2 by taking the outer end face 222 of the mounting foot 22 as a reference, wherein H is more than or equal to H1 and more than or equal to H2, namely the height of the limiting boss 221 is more than or equal to the height of the end cover inner hole 21 and the height of the end cover inner hole 21 is more than or equal to the height of the connecting reinforcing rib 26; the outer end face 222 of the mounting foot 22 refers to the face of the end cap 2 that is away from the stator 1 when mounted on the stator 1.
The invention also provides a motor which comprises the assembling structure for connecting the motor stator and the end cover. The motor is a shaded pole motor.
The end cover can be machined by clamping the end cover at one time by a machine tool and positioning the end cover by the outer diameter of the end cover, so that the inner hole of the end cover and any arc surface matched with the iron core can be machined and finished at one time, the concentricity of the arc surface of the mounting boss of the end cover and the inner hole of the end cover is ensured, the subsequent machinability of the end cover is realized, the machining difficulty is reduced, and the precision of the mounting pin of the end cover is improved; the periphery of the inner circular hole of the iron core is provided with a plurality of mounting holes with arc surfaces, and the arc surface of each mounting hole is concentric with the circle center of the inner circular hole of the iron core, so that the processing difficulty of a die is reduced, and the product precision is improved; the whole concentricity of motor has been improved after the assembly, reinforcing stator and rotor concentricity, and effectual improvement motor air gap has reduced motor electromagnetic vibration simultaneously, reduces electromagnetic noise, promotes product quality, improves the motor performance, and greatly reduced breaks machine and reprocesses rate and disability rate to effectual reprocesses cost and the disability cost of having reduced has guaranteed the product uniformity, has improved production efficiency, promotes product quality, reduce cost.
Claims (10)
1. An assembly structure for connecting a motor stator and an end cover comprises the stator and the end cover; the end cover is provided with an end cover inner hole, a plurality of mounting feet extend outwards from the excircle of the end cover, and mounting bosses are arranged on the mounting feet; the stator comprises a stator iron core and a winding; the stator core is provided with an inner circular hole of the core and a plurality of mounting holes for mounting the end cover so that the mounting bosses of the end cover can be embedded in the mounting holes; the method is characterized in that: the mounting boss is provided with a mounting boss arc surface which is concentric with the inner hole of the end cover; the mounting hole is provided with a mounting hole circular arc surface which is coaxial with the inner circular hole of the iron core; the mounting boss arc surface is matched with the mounting hole arc surface, so that the end cover is assembled on the stator through the matching of the mounting boss arc surface and the mounting hole arc surface.
2. An assembling structure for connecting a stator and an end cover of a motor according to claim 1, wherein: the arc surface of the mounting boss can be an inner arc surface or an outer arc surface of the mounting boss, the inner arc surface is a surface close to the center of the inner hole of the end cover, the outer arc surface is a surface far away from the center of the inner hole of the end cover, and at least one of the inner arc surface or the outer arc surface is concentric with the inner hole of the end cover; the arc surface of the mounting hole can be an inner arc surface or an outer arc surface of the mounting hole, the inner arc surface is a surface close to the center of the inner circular hole of the iron core, the outer arc surface is a surface far away from the center of the inner circular hole of the iron core, and at least one of the inner arc surface or the outer arc surface is concentric with the center of the inner circular hole of the iron core.
3. An assembling structure for connecting a stator and an end cover of a motor according to claim 2, wherein: the width of the arc surface of the mounting boss is smaller than that of the arc surface of the mounting hole.
4. An assembling structure for connecting a stator and an end cover of a motor according to claim 2, wherein: the number of the mounting bosses is at least two, and the mounting bosses are arranged on a concentric circle by taking the center of an inner hole of the end cover as a reference; the corresponding mounting holes are at least two and are arranged on a concentric circle by taking the center of the inner circular hole of the iron core as a reference.
5. An assembling structure for connecting a stator and an end cover of a motor according to claim 2, wherein: the periphery of end cover is provided with strengthens the boss in order to strengthen the reinforcement to the end cover.
6. An assembling structure for connecting a stator and an end cover of a motor according to claim 5, wherein: and the mounting foot is provided with a limiting boss and a fastening hole.
7. An assembling structure for connecting a stator and an end cover of a motor according to claim 1, wherein: and a reinforcing rib is arranged between the excircle of the end cover and the mounting foot to reinforce the connection between the excircle of the end cover and the mounting foot.
8. An assembling structure for connecting a stator and an end cover of a motor according to claim 7, wherein: setting the height of a limiting boss of the mounting foot as H, the height of an inner hole of the end cover as H1 and the height of the reinforcing rib as H2 by taking the outer end surface of the mounting foot as a reference, wherein H is more than or equal to H1 and more than or equal to H2, namely the height of the limiting boss is more than or equal to the height of the inner hole of the end cover, and the height of the inner hole of the end cover is more than or equal to the height; the outer end face of the mounting foot refers to the face away from the stator when the end cover is mounted on the stator.
9. An electric machine characterized by: the electric machine comprises a mounting structure according to any of claims 1-8 for connecting the stator of the electric machine to the end cover.
10. The electric machine of claim 9, wherein: the motor is a shaded pole motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911106153.3A CN110768412A (en) | 2019-11-13 | 2019-11-13 | Assembly structure for connecting motor stator and end cover and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911106153.3A CN110768412A (en) | 2019-11-13 | 2019-11-13 | Assembly structure for connecting motor stator and end cover and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110768412A true CN110768412A (en) | 2020-02-07 |
Family
ID=69338010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911106153.3A Pending CN110768412A (en) | 2019-11-13 | 2019-11-13 | Assembly structure for connecting motor stator and end cover and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110768412A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116054515A (en) * | 2022-12-09 | 2023-05-02 | 江苏中车电机有限公司 | Modularized multifunctional motor end cover tool and application method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201181873Y (en) * | 2008-03-10 | 2009-01-14 | 中山大洋电机股份有限公司 | Electric motor end closure |
| CN202160037U (en) * | 2011-07-04 | 2012-03-07 | 中山大洋电机制造有限公司 | Mounting structure for motor end cap and stator iron core |
| CN202889152U (en) * | 2012-10-23 | 2013-04-17 | 上海六盛电机有限公司 | Single-phase alternating-current permanent magnet motor |
| CN206620024U (en) * | 2017-03-30 | 2017-11-07 | 宁波富佳实业有限公司 | A kind of stator assembling structure applied in motor |
-
2019
- 2019-11-13 CN CN201911106153.3A patent/CN110768412A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201181873Y (en) * | 2008-03-10 | 2009-01-14 | 中山大洋电机股份有限公司 | Electric motor end closure |
| CN202160037U (en) * | 2011-07-04 | 2012-03-07 | 中山大洋电机制造有限公司 | Mounting structure for motor end cap and stator iron core |
| CN202889152U (en) * | 2012-10-23 | 2013-04-17 | 上海六盛电机有限公司 | Single-phase alternating-current permanent magnet motor |
| CN206620024U (en) * | 2017-03-30 | 2017-11-07 | 宁波富佳实业有限公司 | A kind of stator assembling structure applied in motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116054515A (en) * | 2022-12-09 | 2023-05-02 | 江苏中车电机有限公司 | Modularized multifunctional motor end cover tool and application method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103227519B (en) | Motor stator and there is the external rotor electric machine of this motor stator | |
| US20080122300A1 (en) | Motor | |
| KR20160094329A (en) | Electric motor | |
| CN110768412A (en) | Assembly structure for connecting motor stator and end cover and motor | |
| CN104135101A (en) | Brushless plastic motor and manufacturing method thereof | |
| CN203278409U (en) | Motor stator and external rotor motor having the motor stator | |
| JP2009077603A (en) | Electric motor | |
| CN109412297A (en) | A kind of embedded servo motor rotor component of no balance ring and manufacturing method | |
| CN212162960U (en) | Motor outer rotor, brushless permanent magnet motor and electric product | |
| CN203813574U (en) | Molded motor and air-conditioner outdoor unit | |
| KR20150083681A (en) | Motor rotor and method for manufacturing the same | |
| KR100447185B1 (en) | Rotor assembly of outer rotor type induction motor | |
| US20180278107A1 (en) | Rotor, motor, air-conditioning apparatus, and method for manufacturing rotor | |
| JPH10322962A (en) | Motor-bearing assembly structure | |
| CN211791029U (en) | Motor housing of simple and convenient installation and motor that has this shell | |
| CN215870940U (en) | Motor stator, motor and electric product | |
| CN215990353U (en) | Direct current variable frequency motor suitable for automatic assembly | |
| KR0184205B1 (en) | Induction motor of rotor fixing device | |
| CN220190634U (en) | Encoder magnetic steel and motor with same | |
| CN220527744U (en) | Injection molding stator with shaft injection molding | |
| CN220544759U (en) | Rotor core body of motor, rotor assembly, motor and electric appliance | |
| CN109617352A (en) | A kind of external rotor electric machine and exhaust fan | |
| CN217883161U (en) | Motor rotor assembly structure, compressor motor and compressor | |
| CN211351842U (en) | Electric machine | |
| CN219145127U (en) | Magnet ring and rotor assembly using same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200207 |
|
| RJ01 | Rejection of invention patent application after publication |