CN112311111A - Stator punching sheet of shaded pole motor - Google Patents
Stator punching sheet of shaded pole motor Download PDFInfo
- Publication number
- CN112311111A CN112311111A CN202011129607.1A CN202011129607A CN112311111A CN 112311111 A CN112311111 A CN 112311111A CN 202011129607 A CN202011129607 A CN 202011129607A CN 112311111 A CN112311111 A CN 112311111A
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- China
- Prior art keywords
- punching sheet
- hole
- sheet body
- inner hole
- stator
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- 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
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- 238000004080 punching Methods 0.000 title claims abstract description 94
- 239000011148 porous material Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000004804 winding Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 238000003475 lamination Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
- H02K1/14—Stator cores with salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/03—Machines characterised by aspects of the air-gap between rotor and stator
-
- 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)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a stator punching sheet of a shaded pole motor, which comprises a punching sheet body, at least two arc openings and at least two stator core sheets, wherein the punching sheet body is provided with a mounting groove for placing a winding frame and an inner hole for a rotor core to pass through, the arc openings and the inner hole are concentrically arranged and are symmetrical about the center of a round point of the inner hole, the arc openings are avoided and far away from the thinnest position between the punching sheet body and the inner hole, the included angle range of one end part of the arc opening and the symmetrical axis of the punching sheet body is between 4 and 10 degrees, the end part is particularly close to one end of the symmetrical axis of the punching sheet body, the stator punching sheet under the same size and the same material can greatly reserve the wall thickness for both sides of the inner hole of the punching sheet body and a short circuit ring hole on the punching sheet body, the structural strength of the punching sheet body is ensured, meanwhile, the inner hole can be greatly enlarged on the stator punching sheet, so that the, the power of the motor is improved to a large extent.
Description
Technical Field
The invention relates to the technical field of water purifiers, in particular to a stator punching sheet of a shaded pole motor.
Background
In a shaded pole motor, a stator and a rotor are formed by overlapping punching sheets, an air gap needs to be reserved between the stator and the rotor to ensure that the rotor freely rotates in the stator, and simultaneously, the electromagnetic relation between the stator and the rotor is kept, and in addition, a winding frame and a slot for mounting the winding frame need to be arranged on one side of a rotor hole on the stator, referring to fig. 3, the stator punching sheet in the prior art usually slots on the hole wall of the rotor hole to form a second air gap, but because the second air gap is contacted with the axial line of the stator punching sheet, after the stator punching sheet is provided with a mounting groove and the rotor hole, the wall thickness of the stator punching sheet in the length direction is too small, so that the stator punching sheet is easy to deform in the overlapping riveting or punching production process, the assembly and the motor work are influenced, meanwhile, the too small wall thickness of the stator punching sheet limits the maximum size, therefore, in order to increase the output power of the motor, the prior art motor usually directly increases the lamination thickness of the motor or the overall size of the stator lamination, which results in excessive cost and volume.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a stator punching sheet of a shaded pole motor so as to ensure the structural strength of the stator punching sheet and the motor operation efficiency.
The technical purpose of the invention is realized by the following technical scheme: the utility model provides a shaded pole motor stator punching, includes towards the piece body, offer the mounting groove that supplies the bobbin to put into and supply the hole that rotor core passed towards the piece body, still include two at least arcs of extending the setting along the pore wall of hole, the arc sets up with the hole is concentric and the dot central symmetry about the hole, the arc dodges and keeps away from towards the thinnest department between piece body and the hole, just a tip of arc and the contained angle scope of the axis of symmetry of piece body are between 4 to 10, and this tip specifically is the one end of the axis of symmetry of the piece body that is close to.
Further, the thinnest part refers to the wall thickness of the inner hole and the punching sheet body along the axial line.
Furthermore, first air gaps are uniformly distributed between the inner hole and the outer diameter of the rotor, and second uniform air gaps are formed between the outer diameter of the arc opening and the aperture of the inner hole.
Furthermore, the number of the arc openings is two, and the included angle range between the central axis of the two arc openings and the symmetric axis of the punching sheet body is 22-40 degrees.
Further, the aperture of hole is 31mm, the external diameter of arc mouth is 32mm, the length dimension of punching the piece body is 58.5mm, and the width dimension is 60 mm. Through the improvement, compared with the stator punching sheet with the same size and length, the setting ranges of the maximum aperture of the inner hole and the maximum outer diameter of the rotor are increased, and the integral output power and the load operation efficiency of the motor are improved.
Furthermore, at least six riveting points are uniformly distributed on the punching sheet body along the outline of the punching sheet body, mounting holes are formed in two sides of the punching sheet body, which are located on the symmetrical axis of the punching sheet body, and two riveting points are arranged on two sides of each mounting hole.
Furthermore, a notch is formed in one side, far away from the opening of the installation groove, of the punching sheet body.
Further, the depth of the slotted groove is 0.1 mm.
Further, the length of the punching sheet body located on two sides of the inner hole is 33.9mm, and the minimum wall thickness of the punching sheet body located on two sides of the inner hole is 0.9mm to 1.4 mm.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the aperture of the inner hole is larger than the outer diameter of the rotor, so that a first air gap is formed, an arc opening is formed in the wall of the inner hole in an extending mode, a second air gap is formed, magnetic leakage is reduced, the saturation degree of a magnetic circuit is reduced, and the performance and the working efficiency of the motor are improved.
2. This arc mouth dodges and keeps away from the axis of hole, adopt above-mentioned structure, stator punching sheet under the same maximum dimension and same material, furthest gives the hole both sides of punching the piece body, and reserve the wall thickness towards the short circuit annular ring on the piece body, guarantee the structural strength towards the piece body, avoid stator punching sheet to appear buckling deformation at the stack riveting in-process, influence the whole quality of stator, simultaneously, reserve the wall thickness towards on the piece body, can be on stator punching sheet furthest's expansion hole, thereby relative increase rotor maximum external diameter, and rotor external diameter or the square of stator internal diameter is directly proportional with the output of motor, thereby under the condition that does not increase motor stack thickness and motor overall dimension, furthest's improvement motor power.
3. Riveting point equipartition has arranged two riveting points in the both sides of mounting hole at stator towards piece week side, and structural arrangement is more reasonable, and stator towards piece riveting is more reliable and more stable.
By way of example, the size of a stator punching sheet in the prior art is 58.5mmx60mm, the aperture of an inner hole of the stator punching sheet is 30.5mm, the maximum outer diameter of a rotor applicable to the stator punching sheet after a second air gap is reserved is 29.9mm, the aperture of the inner hole of the stator punching sheet adopting the structure of the invention can reach 31mm, the maximum outer diameter of the rotor applicable to the stator punching sheet after the second air gap is reserved is 30.4mm, and the formula P is equal to kD2L shows that the output power of the motor with the stator punching sheet with the structure can be increased by 3.37%.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view at A in FIG. 1;
fig. 3 is a schematic view of a stator punching sheet in the prior art;
in the figure: 1. punching a sheet body; 2. mounting grooves; 3. an inner bore; 4. an arc opening; 5. a first air gap; 6. a second air gap; 7. riveting points; 8. grooving; 9. an inner magnetic ring hole is formed; 10. externally dividing a magnetic ring hole;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.
It will be understood that, although the terms upper, middle, lower, top, end, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another for ease of understanding, and are not used to define any direction or order of limitation.
As shown in fig. 1-2, a stator punching sheet of a shaded pole motor comprises a punching sheet body 1, wherein the punching sheet body 1 is provided with a mounting groove 2 and an inner hole 3 in the length direction, the mounting groove 2 is used for placing and mounting a winding frame, two support legs are arranged on the punching sheet body 1 at two sides of the mounting groove 2, the inner hole 3 is used for rotating a rotor therein, an inner sub-magnetic ring hole 9 and an outer sub-magnetic ring hole 10 are arranged on the punching sheet body 1 at the peripheral side of the inner hole 3, an arc line where the inner sub-magnetic ring hole 9 is located is concentric with the inner hole 3, an arc line where the outer sub-magnetic ring hole 10 is located is concentric with the inner hole 3, the outer sub-magnetic ring hole 10 is incompletely penetrated and arranged on the outer wall of the punching sheet body 1, two mounting holes are symmetrically arranged at two sides of a symmetry axis of the punching sheet body 1, two arc ports 4 are extended from the inner wall of the inner hole 3 on the punching sheet body 1, and the arc opening 4 avoids and is far away from the symmetrical axis of the punching sheet body 1.
Specifically, the bore diameter of the inner bore 3 is larger than the rotor outer diameter to form a first air gap 5, and a second air gap 6 is formed between the outer diameter of the arc opening 4 and the bore diameter of the inner bore 3, and in this embodiment, the preferable length dimension of the punching sheet body 1 may be 58.5 m.
Specifically, the number of the arc ports 4 is two, and the included angle between one end of each arc port 4 and the symmetric axis of the punching sheet body 1 is 4 ° to 10 °, in this embodiment, as the most preferable, the included angle between the end of each arc port 4, which is closer to the symmetric axis of the punching sheet body 1, and the symmetric axis of the punching sheet is 7 °, the effective arc length of each arc port 4 is 8.4mm, and the included angle between two side edges of each arc port 4 is 30 °.
Specifically, an included angle formed by connecting the circle centers of the two inner magnetic ring dividing holes 9 and the circle center of the inner hole 3 is 20 degrees, an included angle between the center line of the two inner magnetic ring dividing holes 9 and the symmetry axis of the punching sheet body 1 is 53 degrees, and the inner magnetic ring dividing holes 9 are communicated with the inner hole 3.
Specifically, the aperture D1 of the inner hole 3 is 31mm, the outer diameter D2 of the arc opening 4 is 32mm, in this embodiment, the applicable rotor may be 30.3mm to 30.5mm, and is most preferably 30.4mm, compared with the stator punching sheet with the same size and length, the setting range of the maximum aperture of the inner hole 3 and the maximum outer diameter of the rotor is increased, and the overall output power and the load operation efficiency of the motor are increased.
Specifically, six riveting points 7 are uniformly distributed on the punching sheet body 1 along the profile of the punching sheet body, in the embodiment, two riveting points 7 are arranged on two sides of each mounting hole along the length direction, one riveting point 7 is arranged at the front end of the punching sheet body 1, and a riveting point 7 is arranged on the supporting leg of each mounting groove 2.
Specifically, be equipped with a fluting 8 towards one side of keeping away from mounting groove 2 opening on the piece body 1, the fluting 8 depth of groove is 0.1 mm.
Specifically, the length a of the punching sheet body 1 on the two sides of the inner hole 3 is 33.9mm, the maximum length L is 28.5mm, and the maximum width is 60mm, and compared with the stator punching sheet in the prior art, the stator punching sheet has the same size, and the minimum wall thickness of the punching sheet body 1 on the two sides of the inner hole 3 is 0.9mm to 1.4 mm.
By way of example, a stator lamination of the same material and the same maximum size in the prior art has a size of 58.5mmx60mm, a hole diameter D1 of the inner hole 3 of 30.5mm, a maximum outer diameter of the applicable rotor after the second air gap 6 is reserved is 29.9mm, a hole diameter D1 of the inner hole 3 of the stator lamination in the embodiment is 31mm, and a maximum outer diameter of the applicable rotor after the second air gap 6 is reserved is 30.4mm, which is expressed by the formula P ═ kD2L indicates that, in the motor using the stator lamination 1 in this embodiment, the output power can be increased by 3.37%, where P is the output power of the motor, k is a constant, D is the outer diameter of the rotor or the inner hole of the stator, and L is the thickness of the iron core, that is, the lamination thickness of the motor.
1. The aperture of the inner hole 3 is larger than the outer diameter of the rotor, so that a first air gap 5 is formed, an arc opening 4 is formed in the hole wall of the inner hole 3 in an extending mode, a second air gap 6 is formed, the magnetic leakage is reduced, the saturation degree of a magnetic circuit is reduced, and the performance and the working efficiency of the motor are improved.
2. This arc mouth 4 dodges and keeps away from the axis of hole 3, adopt above-mentioned structure, stator punching sheet under the same dimension, furthest gives 3 both sides of hole towards piece body 1, and reserve the wall thickness towards the short circuit annular ring on the piece body 1, guarantee towards the structural strength of piece body 1, avoid stator punching sheet to appear buckling deformation at the stack riveting in-process, influence the whole quality of stator, simultaneously, reserve the wall thickness towards piece body 1 on, can be at the last furthest of stator punching sheet enlarge hole 3, thereby relative increase rotor maximum external diameter, and the square of rotor external diameter or stator internal diameter is directly proportional with the output of motor, consequently can furthest's improvement motor power.
3. Riveting point 7 equipartition has arranged two riveting points 7 in the both sides of mounting hole at stator punching week side, and structural arrangement is more reasonable, and stator punching riveting is more reliable and more stable.
In the motors with the same specification, the output power of the motor can be increased by 10.4% by adopting the stator punching sheet.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (9)
1. The utility model provides a shaded pole motor stator punching, includes towards piece body (1), offer towards piece body (1) and supply mounting groove (2) that the bobbin put into and supply hole (3) that rotor core passed, hole (3) pore wall is close to towards the both sides outer wall of piece body (1), the length towards piece body (1) is 58.5mm, and the width is 60mm, the length towards the both sides that lie in hole (3) on piece body (1) is 33.9mm, its characterized in that: still include at least two arc mouths (4) that extend the setting along the pore wall of hole (3), arc mouth (4) dodge and keep away from at the thinnest department towards piece body (1), just a tip of arc mouth (4) and the contained angle scope of the symmetry axis towards piece body (1) are between 4 to 10, the aperture of hole (3) is 31mm, the external diameter of arc mouth (4) is 32 mm.
2. The stator punching sheet of the shaded pole motor as claimed in claim 1, wherein: first air gaps (5) uniformly distributed are arranged between the inner hole (3) and the outer diameter of the rotor, and second air gaps (6) are arranged between the outer diameter of the arc opening (4) and the aperture of the inner hole (3).
3. The stator punching sheet of the shaded pole motor as claimed in claim 1, wherein: the number of the arc openings (4) is two, and the two arc openings (4) and the inner hole (3) are concentrically arranged and are symmetrical about the center of a circular point of the inner hole (3).
4. The stator punching sheet of the shaded pole motor as claimed in claim 1, wherein: the minimum wall thickness of the punching sheet body (1) on two sides of the inner hole (3) is 0.9mm to 1.4 mm.
5. The stator punching sheet of the shaded pole motor as claimed in claim 1, wherein: the punching sheet body (1) is uniformly provided with at least six riveting points (7) along the outline, mounting holes are formed in two sides of the punching sheet body (1) which are located on the symmetrical axis of the punching sheet body, and two riveting points (7) are arranged on two sides of each mounting hole.
6. The stator punching sheet of the shaded pole motor as claimed in claim 1, wherein: one side of the punching sheet body (1) far away from the opening of the mounting groove (2) is provided with a groove (8).
7. The stator punching sheet of the shaded pole motor as claimed in claim 1, wherein: two pairs of inner branch magnetic ring holes (9) and two pairs of outer branch magnetic ring holes (10) are formed in the peripheral side of the inner hole (3), the inner branch magnetic ring holes (9) are communicated with the inner hole (3), and the outer branch magnetic ring holes (10) are incompletely communicated with the outer wall of the punching sheet body (1).
8. The stator punching sheet of the shaded-pole motor as claimed in claim 7, wherein: an included angle between the circle center of each pair of the inner magnetic ring separating holes (9) and the line connecting the circle centers of the inner holes (3) is 20 degrees, and an included angle between the center line of each pair of the inner magnetic ring separating holes (9) and the symmetric axis of the punching sheet body (1) is 53 degrees.
9. The stator punching sheet of the shaded pole motor as claimed in claim 1, wherein: an included angle between one end part of the arc opening (4) and the symmetric axis of the punching sheet body (1) is 7 degrees, and the end part is close to one end of the symmetric axis of the punching sheet body (1).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020208868422 | 2020-05-22 | ||
| CN202020886842 | 2020-05-22 |
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| Publication Number | Publication Date |
|---|---|
| CN112311111A true CN112311111A (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011129607.1A Pending CN112311111A (en) | 2020-05-22 | 2020-10-21 | Stator punching sheet of shaded pole motor |
| CN202022359350.0U Active CN212676965U (en) | 2020-05-22 | 2020-10-21 | Stator punching sheet of shaded pole motor |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022359350.0U Active CN212676965U (en) | 2020-05-22 | 2020-10-21 | Stator punching sheet of shaded pole motor |
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| Country | Link |
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| CN (2) | CN112311111A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113839478A (en) * | 2021-11-04 | 2021-12-24 | 科力尔电机集团股份有限公司 | Improved single-phase shaded pole asynchronous motor main stator punching sheet |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112311111A (en) * | 2020-05-22 | 2021-02-02 | 慈溪市玛西德电机有限公司 | Stator punching sheet of shaded pole motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2013986A (en) * | 1978-02-02 | 1979-08-15 | Plessey Co Ltd | A two or four pole A.C. motor |
| CN202424327U (en) * | 2012-02-29 | 2012-09-05 | 郭前勇 | Stator core of novel shaded pole motor |
| CN203151265U (en) * | 2013-02-04 | 2013-08-21 | 嵊州市协力电机科技有限公司 | Shaded pole motor |
| CN204696883U (en) * | 2015-06-05 | 2015-10-07 | 石河子大学 | A kind of double steering shaded-pole monopole asynchronous motor |
| US20160294266A1 (en) * | 2015-03-30 | 2016-10-06 | Johnson Electric S.A. | Single-Phase Brushless Motor |
| CN206820621U (en) * | 2017-04-21 | 2017-12-29 | 深圳市兆力电机有限公司 | A kind of single-phase shaded pole asynchronous the core plate of the motor and single-phase shaded pole asynchronous motor |
| CN207184175U (en) * | 2017-09-13 | 2018-04-03 | 吴杰宏 | A kind of Novel shade-pole motor turns stator |
| CN208353082U (en) * | 2018-06-07 | 2019-01-08 | 宁波意卡德电器科技有限公司 | A kind of shaded pole asynchronous motor stator of abnormity |
| CN212676965U (en) * | 2020-05-22 | 2021-03-09 | 慈溪市玛西德电机有限公司 | Stator punching sheet of shaded pole motor |
-
2020
- 2020-10-21 CN CN202011129607.1A patent/CN112311111A/en active Pending
- 2020-10-21 CN CN202022359350.0U patent/CN212676965U/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2013986A (en) * | 1978-02-02 | 1979-08-15 | Plessey Co Ltd | A two or four pole A.C. motor |
| CN202424327U (en) * | 2012-02-29 | 2012-09-05 | 郭前勇 | Stator core of novel shaded pole motor |
| CN203151265U (en) * | 2013-02-04 | 2013-08-21 | 嵊州市协力电机科技有限公司 | Shaded pole motor |
| US20160294266A1 (en) * | 2015-03-30 | 2016-10-06 | Johnson Electric S.A. | Single-Phase Brushless Motor |
| CN106160389A (en) * | 2015-03-30 | 2016-11-23 | 德昌电机(深圳)有限公司 | Single-phase brushless direct-current motor |
| CN204696883U (en) * | 2015-06-05 | 2015-10-07 | 石河子大学 | A kind of double steering shaded-pole monopole asynchronous motor |
| CN206820621U (en) * | 2017-04-21 | 2017-12-29 | 深圳市兆力电机有限公司 | A kind of single-phase shaded pole asynchronous the core plate of the motor and single-phase shaded pole asynchronous motor |
| CN207184175U (en) * | 2017-09-13 | 2018-04-03 | 吴杰宏 | A kind of Novel shade-pole motor turns stator |
| CN208353082U (en) * | 2018-06-07 | 2019-01-08 | 宁波意卡德电器科技有限公司 | A kind of shaded pole asynchronous motor stator of abnormity |
| CN212676965U (en) * | 2020-05-22 | 2021-03-09 | 慈溪市玛西德电机有限公司 | Stator punching sheet of shaded pole motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113839478A (en) * | 2021-11-04 | 2021-12-24 | 科力尔电机集团股份有限公司 | Improved single-phase shaded pole asynchronous motor main stator punching sheet |
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|---|---|
| CN212676965U (en) | 2021-03-09 |
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