CN202634094U - Stator punching, stator core and motor - Google Patents
Stator punching, stator core and motor Download PDFInfo
- Publication number
- CN202634094U CN202634094U CN 201220131055 CN201220131055U CN202634094U CN 202634094 U CN202634094 U CN 202634094U CN 201220131055 CN201220131055 CN 201220131055 CN 201220131055 U CN201220131055 U CN 201220131055U CN 202634094 U CN202634094 U CN 202634094U
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- stator
- stator punching
- circular hole
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Abstract
The utility model provides a stator punching, a stator core and a motor. The stator punching is provided with an annular yoke portion and a plurality of teeth extending from the yoke portion to a direction of the center of the annular yoke portion. A groove is formed between two adjacent teeth, and the stator punching is provided with a hollow inner circular hole. The outer ring diameter of the stator punching is between 115mm and 120mm, wherein, the diameter of the inner circular hole is between 72mm and 76mm. Notch width of the groove is between 1.9mm and 2.3mm. Width of a groove shoulder of the groove is between 4.5mm and 4.7mm. Notch height of the groove is between 1.1mm and 1.3mm. Height of the groove shoulder of the groove is between 0.75mm and 0.95mm. The stator punching, the stator core and the motor can reduce application amount of silicon steel sheets, improve utilization rate of the silicon steel sheets, make magnetic density of the yoke portion and teeth portion more uniform, and reduce vibration and noise when the motor is in 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, rotation under the drive of rotor 18, thereby outside outputting power.
In the existing stator punching 20; Outside diameter φ A1 is between 115 millimeters to 120 millimeters; The diameter phi B1 of interior circular hole is between 68 millimeters to 75 millimeters, so the ring width H of stator punching 20 is bigger, causes groove 23 areas of stator punching 20 also bigger; Groove 23 area utilizations are lower, 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.
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 8000 Gausses; And the magnetic density at tooth 22 places is 14000 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, a plurality of 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 115 millimeters to 120 millimeters, and wherein, the diameter of interior circular hole is between 72 millimeters to 76 millimeters; The width of rebate of groove is between 1.9 millimeters to 2.3 millimeters; The groove shoulder breadth degree of groove is between 4.5 millimeters to 4.7 millimeters, and the notch height of groove is between 1.1 millimeters to 1.3 millimeters, and the groove shoulder height degree of groove is between 0.75 millimeter to 0.95 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 more 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 3.2 millimeters to 3.4 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 a plurality of 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 115 millimeters to 120 millimeters, and wherein, the diameter of interior circular hole is between 72 millimeters to 76 millimeters; The width of rebate of groove is between 1.9 millimeters to 2.3 millimeters; The groove shoulder breadth degree of groove is between 4.5 millimeters to 4.7 millimeters, and the notch height of groove is between 1.1 millimeters to 1.3 millimeters, and the groove shoulder height degree of groove is between 0.75 millimeter to 0.95 millimeter.
Visible by such scheme, Circularhole diameter increases in the punching of stator core, has reduced ring width, and has reduced the area of groove, improves the utilance of silicon steel sheet.
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 a plurality of 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 115 millimeters to 120 millimeters, and wherein, the diameter of interior circular hole is between 72 millimeters to 76 millimeters; The width of rebate of groove is between 1.9 millimeters to 2.3 millimeters; The groove shoulder breadth degree of groove is between 4.5 millimeters to 4.7 millimeters, and the notch height of groove is between 1.1 millimeters to 1.3 millimeters, and the groove shoulder height degree of groove is between 0.75 millimeter to 0.95 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 rotor interference fit, rotation under the drive of rotor, thereby 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.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 115 millimeters to 120 millimeters, preferably, is 120 millimeters.The diameter phi B of interior circular hole 34 is between 72 millimeters to 76 millimeters, preferably, is 76 millimeters.
Referring to Fig. 4, the width of rebate C of the groove 33 of stator punching 30 is between 1.9 millimeters to 2.3 millimeters, preferably, is 2.3 millimeters, and groove shoulder breadth degree D is between 4.5 millimeters to 4.7 millimeters, preferably, is 4.6 millimeters.And notch height E is between 1.1 millimeters to 1.3 millimeters, preferably, be 1.2 millimeters, and groove shoulder height degree F is between 0.75 millimeter to 0.95 millimeter, preferably, is 0.85 millimeter.In addition, the groove top radius R of groove 33 is between 3.2 millimeters to 3.4 millimeters, preferably, is 3.31 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 10100 Gausses when motor moves, and the magnetic density of tooth 32 is 11500 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 a plurality of 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 115 millimeters to 120 millimeters;
It is characterized in that:
The diameter of circular hole is between 72 millimeters to 76 millimeters in said; The width of rebate of said groove is between 1.9 millimeters to 2.3 millimeters; The groove shoulder breadth degree of said groove is between 4.5 millimeters to 4.7 millimeters; The notch height of said groove is between 1.1 millimeters to 1.3 millimeters, and the groove shoulder height degree of said groove is between 0.75 millimeter to 0.95 millimeter.
2. stator punching according to claim 1 is characterized in that:
The groove top radius of said groove is between 3.2 millimeters to 3.4 millimeters.
3. stator punching according to claim 1 and 2 is characterized in that:
Said outside diameter is 120 millimeters, and the diameter of said interior circular hole is 76 millimeters, and said width of rebate is 2.3 millimeters, and said groove shoulder breadth degree is 4.6 millimeters, and said notch height is 1.2 millimeters, and said groove shoulder height degree is 0.85 millimeter.
4. stator punching according to claim 2 is characterized in that:
Said groove top radius is 3.31 millimeters.
5. stator core; The stator punching identical by the multi-disc shape is overrided to form; A plurality of 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 115 millimeters to 120 millimeters;
It is characterized in that:
The diameter of circular hole is between 72 millimeters to 76 millimeters in said; The width of rebate of said groove is between 1.9 millimeters to 2.3 millimeters; The groove shoulder breadth degree of said groove is between 4.5 millimeters to 4.7 millimeters; The notch height of said groove is between 1.1 millimeters to 1.3 millimeters, and the groove shoulder height degree of said groove is between 0.75 millimeter to 0.95 millimeter.
6. stator core according to claim 5 is characterized in that:
The groove top radius of said groove is between 3.2 millimeters to 3.4 millimeters.
7. according to claim 5 or 6 described stator cores, it is characterized in that:
Said outside diameter is 120 millimeters, and the diameter of said interior circular hole is 76 millimeters, and said width of rebate is 2.3 millimeters, and said groove shoulder breadth degree is 4.6 millimeters, and said notch height is 1.2 millimeters, and said groove shoulder height degree is 0.85 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 a plurality of 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 115 millimeters to 120 millimeters;
It is characterized in that:
The diameter of circular hole is between 72 millimeters to 76 millimeters in said; The width of rebate of said groove is between 1.9 millimeters to 2.3 millimeters; The groove shoulder breadth degree of said groove is between 4.5 millimeters to 4.7 millimeters; The notch height of said groove is between 1.1 millimeters to 1.3 millimeters, and the groove shoulder height degree of said groove is between 0.75 millimeter to 0.95 millimeter.
9. motor according to claim 8 is characterized in that:
The groove top radius of said groove is between 3.2 millimeters to 3.4 millimeters.
10. it is characterized in that according to Claim 8 or 9 described motors:
Said outside diameter is 120 millimeters, and the diameter of said interior circular hole is 76 millimeters, and said width of rebate is 2.3 millimeters, and said groove shoulder breadth degree is 4.6 millimeters, and said notch height is 1.2 millimeters, and said groove shoulder height degree is 0.85 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220131055 CN202634094U (en) | 2012-03-30 | 2012-03-30 | Stator punching, stator core and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220131055 CN202634094U (en) | 2012-03-30 | 2012-03-30 | Stator punching, stator core and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202634094U true CN202634094U (en) | 2012-12-26 |
Family
ID=47387239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220131055 Expired - Lifetime CN202634094U (en) | 2012-03-30 | 2012-03-30 | Stator punching, stator core and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202634094U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113872350A (en) * | 2021-10-14 | 2021-12-31 | 广东美芝制冷设备有限公司 | Stator structure, motor structure, compressor structure and refrigeration plant |
-
2012
- 2012-03-30 CN CN 201220131055 patent/CN202634094U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113872350A (en) * | 2021-10-14 | 2021-12-31 | 广东美芝制冷设备有限公司 | Stator structure, motor structure, compressor structure and refrigeration plant |
| CN113872350B (en) * | 2021-10-14 | 2023-08-01 | 广东美芝制冷设备有限公司 | Stator structure, motor structure, compressor structure and refrigeration equipment |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |