CN202634093U - Stator punching sheet, stator core and motor - Google Patents
Stator punching sheet, stator core and motor Download PDFInfo
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- CN202634093U CN202634093U CN 201220257589 CN201220257589U CN202634093U CN 202634093 U CN202634093 U CN 202634093U CN 201220257589 CN201220257589 CN 201220257589 CN 201220257589 U CN201220257589 U CN 201220257589U CN 202634093 U CN202634093 U CN 202634093U
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- 238000004080 punching Methods 0.000 title claims abstract description 65
- 229910000976 Electrical steel Inorganic materials 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Abstract
The utility model provides a stator punching sheet, stator core and motor, this stator punching sheet has the annular yoke portion of circle and 24 teeth that extend to centre of a circle direction from yoke portion, form the groove between two adjacent teeth, and the stator punching sheet has interior round hole of cavity, the excircle diameter of stator punching sheet is between 92 millimeters to 98 millimeters, wherein, the diameter of interior round hole is between 63.2 millimeters to 65 millimeters, the notch width in groove is between 1.5 millimeters to 2.1 millimeters, the groove shoulder width in groove is between 4.74 millimeters to 4.94 millimeters, the notch height in groove is between 0.6 millimeters to 0.8 millimeters, the groove shoulder height in groove is between 0.6 millimeters to 0.8 millimeters. The utility model discloses can reduce the use amount of silicon steel sheet when preparation stator punching to improve the rate of utilization of silicon steel sheet, stator core yoke portion is more even with the magnetic field density of tooth portion when making motor operation, vibration and noise when reducing motor operation.
Description
Technical field
The utility model relates to machine field, especially relates to a kind of stator punching, the stator core that is overrided to form by this stator punching and the motor with this stator core.
Background technology
Motor is widely used in the various electric equipments of commercial production and life; Referring to Fig. 1; The end cap 11,12 that prior motor has housing 10 and is positioned at housing 10 two ends; Housing 10 and end cap 11,12 surround a cavity, and stator 15 and rotor 18 are installed in the cavity, and stator 15 has stator core 16 and is embedded into the coil 17 on stator core 16.Rotor 18 is installed in the stator 15, and can be with respect to stator 15 rotations.Armature spindle 19 is installed in the rotor 18, and with rotor 18 interference fit, armature spindle 19 rotates under the drive of rotor 18, thus outside outputting power.
In the existing stator punching 20; Outside diameter φ A1 is between 92 millimeters to 98 millimeters, and the diameter phi B1 of interior circular hole is generally 55 millimeters, so the ring width H of stator punching 20 is bigger; Cause groove 23 areas of stator punching 20 also bigger; Groove 23 area utilizations are lower, are approximately 61%, so also cause the utilance of silicon steel sheet lower.
And the magnetic leakage factor of the stator core 16 that this stator punching 20 is processed is bigger, causes the maximum moment of motor and starting torque to descend, and temperature is higher during the motor operation, causes the useful life of motor shorter, thereby has influence on the motor reliability of operation.For the magnetic flux that increases stator core and the temperature when reducing the motor operation, improve magnetic loading with the quantity that increases coil 17 and the use amount mode of silicon steel sheet usually, but will increase the production cost of motor like this.
In addition; The stator core 16 that uses said stator punching 20 to process, when motor moved, the magnetic density of yoke portion 21 was approximately 9000 Gausses; And the magnetic density at tooth 22 places is 12000 Gausses; Cause on the stator 15 magnetic density inhomogeneous like this, cause vibration during the motor operation easily, and produce noise.
Summary of the invention
The main purpose of the utility model provides a kind of comparatively uniform stator punching of magnetic density that makes stator.
Another purpose of the utility model provides the higher stator core of a kind of silicon steel sheet utilance.
A purpose again of the utility model provides the motor that a kind of functional reliability is higher and noise is less.
For realizing the main purpose of the utility model, 24 teeth that the stator punching that the utility model provides has circular yoke portion and extends to center of circle direction from yoke portion form groove between two adjacent teeth; And stator punching has circular hole in the hollow; The outside diameter of stator punching is between 92 millimeters to 98 millimeters, and wherein, the diameter of interior circular hole is between 63.2 millimeters to 65 millimeters; The width of rebate of groove is between 1.5 millimeters to 2.1 millimeters; The groove shoulder breadth degree of groove is between 4.74 millimeters to 4.94 millimeters, and the notch height of groove is between 0.6 millimeter to 0.8 millimeter, and the groove shoulder height degree of groove is between 0.6 millimeter to 0.8 millimeter.
Visible by such scheme, the interior Circularhole diameter of stator punching is bigger, and ring width is less, and the magnetic density of yoke portion and tooth portion is comparatively approaching, and the magnetic density of stator is more even during the motor operation.In addition, because the not variation of the outside diameter of stator punching, and interior Circularhole diameter increases, the area of groove is able to reduce, thereby reduces the use amount of silicon steel sheet, improves the utilization rate of silicon steel sheet.
A preferred scheme is that the groove top radius of groove is between 3.1 millimeters to 3.3 millimeters.Because the also corresponding minimizing of groove top radius of groove, thereby reduce the area of groove, avoided a large amount of wastes of silicon steel sheet.
For realizing another purpose of the utility model; The stator core that the utility model provides is overrided to form by the identical stator punching of multi-disc shape, and 24 teeth that each stator punching has circular yoke portion and extends to center of circle direction from yoke portion form groove between two adjacent teeth; And stator punching has circular hole in the hollow; The outside diameter of stator punching is between 92 millimeters to 98 millimeters, and wherein, the diameter of the interior circular hole of stator punching is between 63.2 millimeters to 65 millimeters; The width of rebate of groove is between 1.5 millimeters to 2.1 millimeters; The groove shoulder breadth degree of groove is between 4.74 millimeters to 4.94 millimeters, and the notch height of groove is between 0.6 millimeter to 0.8 millimeter, and the groove shoulder height degree of groove is between 0.6 millimeter to 0.8 millimeter.
Visible by such scheme, Circularhole diameter increases in the punching of stator core, has reduced ring width; And reduced the area of groove; Improve the utilance of silicon steel sheet, and the magnetic density of stator core is more even during machine operation, the noise that produces when helping reducing machine operation.
For realizing a purpose again of the utility model, the motor that the utility model provides comprises stator and rotor, and stator comprises stator core and is embedded in the coil on the stator core; Stator core is overrided to form by the identical stator punching of multi-disc shape, and 24 teeth that each stator punching has circular yoke portion and extends to center of circle direction from yoke portion form groove between two adjacent teeth; And stator punching has circular hole in the hollow; The outside diameter of stator punching is between 92 millimeters to 98 millimeters, and wherein, the diameter of the interior circular hole of stator punching is between 63.2 millimeters to 65 millimeters; The width of rebate of groove is between 1.5 millimeters to 2.1 millimeters; The groove shoulder breadth degree of groove is between 4.74 millimeters to 4.94 millimeters, and the notch height of groove is between 0.6 millimeter to 0.8 millimeter, and the groove shoulder height degree of groove is between 0.6 millimeter to 0.8 millimeter.
This shows that the stator punching outside diameter of motor and the diameter of interior circular hole are more approaching, the magnetic density of yoke portion and tooth portion is also comparatively approaching, thereby makes that the magnetic density of stator is comparatively even, and more stable during the motor operation, the noise of generation is less.
Description of drawings
Fig. 1 be existing motor partly cut open figure.
Fig. 2 is the structure chart of existing stator punching.
Fig. 3 is the structure chart of the utility model stator punching embodiment.
Fig. 4 is the partial enlarged drawing of the utility model stator punching embodiment.
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Embodiment
The motor of present embodiment has housing and is positioned at the housing end covers at two sides; Housing and end cap surround a cavity, and stator and rotor are installed in the cavity, and stator has stator core and is embedded into the coil on stator core; Rotor is installed in the stator, and can rotate with respect to stator.Armature spindle is installed in the rotor, and with the rotor interference fit, armature spindle rotates under the drive of rotor, and outside outputting power.
Stator core is overrided to form by the identical stator punching of multi-disc shape, and each sheet stator punching is stamped to form by silicon steel sheet.Referring to Fig. 3; It is circular that stator punching 30 roughly is, and 24 teeth 32 that it has yoke portion 31 and extends to stator punching 30 center of circle directions from yoke portion 31 form groove 33 between two adjacent teeth 32; Groove 33 is the grooves with an opening, and width of rebate is less than the Breadth Maximum in the groove 33.And, offer the interior circular hole 34 of hollow at the middle part of stator punching 30.
In the present embodiment, the outside diameter φ A of stator punching 30 is between 92 millimeters to 98 millimeters, preferably, is 95 millimeters.The diameter phi B of interior circular hole 34 is between 63.2 millimeters to 65 millimeters, preferably, is 64 millimeters.Like this, stator punching 30 ring widthes of present embodiment are less, the use amount that helps saving silicon steel sheet.
Referring to Fig. 4, the width of rebate C of the groove 33 of stator punching 30 is between 1.5 millimeters to 2.1 millimeters, preferably, is 2.0 millimeters, and groove shoulder breadth degree D is between 4.74 millimeters to 4.94 millimeters, preferably, is 4.84 millimeters.And notch height E is between 0.6 millimeter to 0.8 millimeter, preferably, be 0.7 millimeter, and groove shoulder height degree F also is between 0.6 millimeter to 0.8 millimeter, preferably, also is 0.7 millimeter.In addition, the groove top radius R of groove 33 is between 3.1 millimeters to 3.3 millimeters, preferably, is 3.194 millimeters.
Like this, because the outside diameter φ A of stator punching 30 do not reduce, but the diameter phi B of interior circular hole increases, and the ring width of stator punching 30 reduces, thereby has reduced the use amount of silicon steel sheet, also makes yoke portion 31 more even with the magnetic density on the tooth 32.Magnetic density through to stator core is measured, the stator core that the stator punching of use present embodiment is processed, and the magnetic density of yoke portion 31 is 9300 Gausses when motor moves, and the magnetic density of tooth 32 is 11000 Gausses.It is thus clear that the magnetic density on the magnetic density of yoke portion 31 and the tooth 32 is comparatively approaching, be difficult for vibrating the also corresponding minimizing of noise during the motor operation.
And,, improved the utilization rate of silicon steel sheet owing to, the area of groove 33 is reduced to some extent to the design again of width of rebate C, groove shoulder breadth degree D, notch height E, groove shoulder height degree F and the groove top radius R of groove 33.Simultaneously, the motor maximum moment of using this stator punching 30 to process increases, and temperature is too high in the time of also avoiding the motor operation, prolongs the useful life of motor.
It is emphasized that at last; The utility model is not limited to above-mentioned execution mode, in the size range of setting, changes also should be included in the protection range of the utility model claim like width of rebate, groove shoulder breadth degree, notch height, groove shoulder height degree and groove top radius.
Claims (10)
1. stator punching comprises
Circular yoke portion and 24 teeth that extend to center of circle direction from said yoke portion form groove between two adjacent teeth, and said stator punching has circular hole in the hollow, and the outside diameter of said stator punching is between 92 millimeters to 98 millimeters;
It is characterized in that:
The diameter of circular hole is between 63.2 millimeters to 65 millimeters in said; The width of rebate of said groove is between 1.5 millimeters to 2.1 millimeters; The groove shoulder breadth degree of said groove is between 4.74 millimeters to 4.94 millimeters; The notch height of said groove is between 0.6 millimeter to 0.8 millimeter, and the groove shoulder height degree of said groove is between 0.6 millimeter to 0.8 millimeter.
2. stator punching according to claim 1 is characterized in that:
The groove top radius of said groove is between 3.1 millimeters to 3.3 millimeters.
3. stator punching according to claim 1 and 2 is characterized in that:
Said outside diameter is 95 millimeters, and the diameter of said interior circular hole is 64 millimeters, and said width of rebate is 2.0 millimeters, and said groove shoulder breadth degree is 4.84 millimeters, and said notch height is 0.7 millimeter, and said groove shoulder height degree is 0.7 millimeter.
4. stator punching according to claim 1 and 2 is characterized in that:
Said groove top radius is 3.196 millimeters.
5. stator core; The stator punching identical by the multi-disc shape is overrided to form; 24 teeth that each said stator punching has circular yoke portion and extends to center of circle direction from said yoke portion; Form groove between two adjacent teeth, and said stator punching has circular hole in the hollow, the outside diameter of said stator punching is between 92 millimeters to 98 millimeters;
It is characterized in that:
The diameter of circular hole is between 63.2 millimeters to 65 millimeters in said; The width of rebate of said groove is between 1.5 millimeters to 2.1 millimeters; The groove shoulder breadth degree of said groove is between 4.74 millimeters to 4.94 millimeters; The notch height of said groove is between 0.6 millimeter to 0.8 millimeter, and the groove shoulder height degree of said groove is between 0.6 millimeter to 0.8 millimeter.
6. stator core according to claim 5 is characterized in that:
The groove top radius of said groove is between 3.1 millimeters to 3.3 millimeters.
7. according to claim 5 or 6 described stator cores, it is characterized in that:
Said outside diameter is 95 millimeters, and the diameter of said interior circular hole is 64 millimeters, and said width of rebate is 2.0 millimeters, and said groove shoulder breadth degree is 4.84 millimeters, and said notch height is 0.7 millimeter, and said groove shoulder height degree is 0.7 millimeter.
8. motor comprises
Stator and rotor; Said stator has stator core and is embedded in the coil on the said stator core; Said stator core is overrided to form by the identical stator punching of multi-disc shape, and 24 teeth that each said stator punching has circular yoke portion and extends to center of circle direction from said yoke portion form groove between two adjacent teeth; And said stator punching has circular hole in the hollow, and the outside diameter of said stator punching is between 92 millimeters to 98 millimeters;
It is characterized in that:
The diameter of circular hole is between 63.2 millimeters to 65 millimeters in said; The width of rebate of said groove is between 1.5 millimeters to 2.1 millimeters; The groove shoulder breadth degree of said groove is between 4.74 millimeters to 4.94 millimeters; The notch height of said groove is between 0.6 millimeter to 0.8 millimeter, and the groove shoulder height degree of said groove is between 0.6 millimeter to 0.8 millimeter.
9. motor according to claim 8 is characterized in that:
The groove top radius of said groove is between 3.1 millimeters to 3.3 millimeters.
10. it is characterized in that according to Claim 8 or 9 described motors:
Said outside diameter is 95 millimeters, and the diameter of said interior circular hole is 64 millimeters, and said width of rebate is 2.0 millimeters, and said groove shoulder breadth degree is 4.84 millimeters, and said notch height is 0.7 millimeter, and said groove shoulder height degree is 0.7 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220257589 CN202634093U (en) | 2012-05-31 | 2012-05-31 | Stator punching sheet, stator core and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220257589 CN202634093U (en) | 2012-05-31 | 2012-05-31 | Stator punching sheet, stator core and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202634093U true CN202634093U (en) | 2012-12-26 |
Family
ID=47387238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220257589 Expired - Lifetime CN202634093U (en) | 2012-05-31 | 2012-05-31 | Stator punching sheet, stator core and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202634093U (en) |
-
2012
- 2012-05-31 CN CN 201220257589 patent/CN202634093U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |
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| CX01 | Expiry of patent term |