CN202737602U - Rotor punching sheet, rotor core, and motor - Google Patents
Rotor punching sheet, rotor core, and motor Download PDFInfo
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- CN202737602U CN202737602U CN 201220274408 CN201220274408U CN202737602U CN 202737602 U CN202737602 U CN 202737602U CN 201220274408 CN201220274408 CN 201220274408 CN 201220274408 U CN201220274408 U CN 201220274408U CN 202737602 U CN202737602 U CN 202737602U
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Abstract
The utility model provides a rotor punching sheet, a rotor core, and a motor, wherein the rotor punching sheet is provided with a circular yoke portion and a plurality of teeth extending from the yoke portion to a circumference direction along a rotor punching sheet radial direction, a slot is formed between two adjacent teeth, the rotor punching sheet is provided with a hollow inner circle hole, a diameter of the inner circle hole is between 17mm and 25mm, a number of the teeth is 33, an outer circle diameter of the rotor punching sheet is between 90mm and 106mm, a slot mouth width of the slot is between 0.9mm and 1.1mm, a slot shoulder width of the slot is between 3.7mm and 3.9mm, a height of the slot shoulder of the slot is between 0.8mm and 1.0mm, and a depth of the slot is between 15.0mm and 15.2mm. The rotor punching sheet of the utility model has increased slot depth and increased slot area, a condition of air holes or broken bars of aluminium bars formed after aluminium casting is prevented, magnetic field density of the motor is more uniform, and the motor is facilitated to operate steadily.
Description
Technical field
The utility model relates to machine field, especially relates to a kind of rotor punching, the rotor core that is overrided to form by this rotor punching and the motor with this rotor core.
Background technology
Motor is widely used in the various electric equipments of industrial production and life, referring to Fig. 1, the end cap 11,12 that existing motor has housing 10 and is positioned at housing 10 two ends, housing 10 and end cap 11,12 surround a cavity, stator 15 and rotor 18 are installed in the cavity, and stator 15 has stator core 16 and is embedded into 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.
Existing rotor punching 30 outside diameter φ A1 are between 98 millimeters to 106 millimeters, the diameter phi B1 of interior circular hole 34 is between 17 millimeters to 25 millimeters, and the area of groove 33 is generally less, the degree of depth of groove 33 is inadequate, when rotor is carried out cast aluminium, affect the quality of cast aluminium and the speed of cast aluminium, cause easily aluminum strip the situation of pore or disconnected bar to occur.Because the pore of aluminum strip and disconnected bar situation can't visualizes, need to use special equipment to detect, and increased the production cost of rotor.In addition, because there are quality problems in aluminum strip, increased the quality risk of motor, caused that motor is reprocessed, scrappage high.
In addition, when motor moves, yoke section 21 place's magnetic densities of stator punching 20 are approximately 12000 Gausses, and the magnetic density at tooth 32 places of rotor punching 30 is approximately 7000 Gausses, Distribution of Magnetic Field during the motor operation on stator core and the rotor core is very inhomogeneous, the situation of easy vibration-generating when causing the motor operation, and produce larger noise, also cause the motor operational efficiency not high.In order to improve the motor operational efficiency, usually adopt the modes such as thickness of increase winding quantity or stator core, rotor core to improve magnetic loading, will cause like this production cost of motor significantly to improve.
Referring to Fig. 3, existing another kind of rotor punching 40 also has circular yoke section 41, and be provided with 28 teeth 42 that extend along rotor radial to circumferencial direction from yoke section 41, form a groove 43 between two adjacent teeth 42, and also offer interior circular hole 44 at the middle part of rotor punching 40, the diameter phi B2 of interior circular hole 44 is between 17 millimeters to 25 millimeters, and the outside diameter φ A2 of rotor punching 40 is between 98 millimeters to 106 millimeters.
Because groove 43 areas of this rotor punching 40 are also less, the situation of pore or disconnected bar appears in the aluminum strip that also can cause forming behind the cast aluminium, affects the qualification rate of motor.
Summary of the invention
Main purpose of the present utility model provides a kind of rotor punching that reduces aluminum strip quality problems behind the motor cast-aluminum.
Another purpose of the present utility model provides a kind of comparatively uniform rotor core of magnetic density that makes motor.
An again purpose of the present utility model provides the motor that a kind of functional reliability is higher and noise is less.
For realizing main purpose of the present utility model, a plurality of teeth that the rotor punching that the utility model provides has circular yoke section and radially extends to circumferencial direction along rotor punching from yoke section, form groove between two adjacent teeth, and rotor punching has the interior circular hole of hollow, the diameter of interior circular hole is between 17 millimeters to 25 millimeters, wherein, the quantity of tooth is 33, the outside diameter of rotor punching is between 90 millimeters to 106 millimeters, the width of rebate of groove is between 0.9 millimeter to 1.1 millimeters, the groove shoulder breadth degree of groove is between 3.7 millimeters to 3.9 millimeters, and the groove shoulder height degree of groove is between 0.8 millimeter to 1.0 millimeters, and the degree of depth of groove is between 15.0 millimeters to 15.2 millimeters.
By such scheme as seen, the rotor punching groove area increases to some extent, and especially groove depth increases to some extent, and the aluminum strip that produces in the time of can avoiding cast aluminium produces the situation of pore or disconnected bar, improves the quality of production of motor.And, the motor that uses this rotor punching to make, the magnetic density of the yoke section of stator core and rotor core tooth section is comparatively even during operation, produces vibration when avoiding the motor operation, thereby reduces the noise that the motor operation produces, and improves the motor reliability of operation.
A preferred scheme is that the groove top radius of groove is between 0.35 millimeter to 0.55 millimeter.Because groove depth increases, groove top radius reduces slightly according to groove depth, the shape of mating groove.In addition, the also to some extent increase of groove quantity that reduces to guarantee rotor punching of groove top radius, and then make the magnetic density of rotor and stator more even.
For realizing another purpose of the present utility model, the rotor core that the utility model provides is overrided to form by the identical rotor punching of multi-disc shape, a plurality of teeth that each rotor punching has circular yoke section and radially extends to circumferencial direction along rotor punching from yoke section, form groove between two adjacent teeth, and rotor punching has the interior circular hole of hollow, the diameter of interior circular hole is between 17 millimeters to 25 millimeters, wherein, the quantity of tooth is 33, the outside diameter of rotor punching is between 90 millimeters to 106 millimeters, the width of rebate of groove is between 0.9 millimeter to 1.1 millimeters, the groove shoulder breadth degree of groove is between 3.7 millimeters to 3.9 millimeters, the groove shoulder height degree of groove is between 0.8 millimeter to 1.0 millimeters, and the degree of depth of groove is between 15.0 millimeters to 15.2 millimeters.
By such scheme as seen, the rotor punching groove quantity that consists of rotor core increases to some extent, and the also corresponding increase of the area of each groove, so that the aluminum strip quality that forms behind the casting aluminum rotor is better, avoids occurring the situation of disconnected bar behind the pore.In addition, magnetic density is comparatively even on the motor when operation stator core that uses above-mentioned rotor core and the rotor core, thus the noise and vibration when reducing motor and moving.
For realizing an again purpose of the present utility model, the motor that the utility model provides comprises stator and rotor, rotor has rotor core, rotor core is overrided to form by the identical rotor punching of multi-disc shape, a plurality of teeth that each rotor punching has circular yoke section and radially extends to circumferencial direction along rotor punching from yoke section, form groove between two adjacent teeth, and rotor punching has the interior circular hole of hollow, the diameter of interior circular hole is between 17 millimeters to 25 millimeters, wherein, the quantity of tooth is 33, the outside diameter of rotor punching is between 90 millimeters to 106 millimeters, and the width of rebate of groove is between 0.9 millimeter to 1.1 millimeters, and the groove shoulder breadth degree of groove is between 3.7 millimeters to 3.9 millimeters, the groove shoulder height degree of groove is between 0.8 millimeter to 1.0 millimeters, and the degree of depth of groove is between 15.0 millimeters to 15.2 millimeters.
This shows, because the groove area of rotor punching increases to some extent, the aluminum strip quality that forms behind the cast aluminium is higher, greatly reduced the generation of pore or disconnected bar situation, and the Distribution of Magnetic Field of stator core and rotor core is more even when making the motor operation, motor oscillating is less, moves more steadily, and noise is also less.
Description of drawings
Fig. 1 be existing motor partly cut open figure.
Fig. 2 is the structure chart that existing stator punching cooperates with rotor punching.
Fig. 3 is the structure chart of existing another kind of rotor punching.
Fig. 4 is the structure chart that the utility model rotor punching embodiment cooperates with stator punching.
Fig. 5 is the structure enlarged drawing of the utility model rotor punching embodiment.
Fig. 6 is the partial enlarged drawing of the utility model stator punching embodiment.
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment
The end cap that the motor of present embodiment has housing and is positioned at the housing both 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 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 every a slice stator punching is stamped to form by silicon steel sheet.Referring to Fig. 4, it is circular that stator punching 50 roughly is, and a plurality of teeth 52 that it has yoke section 51 and extends to stator punching 50 center of circle directions from yoke section 51 form groove 53 between two adjacent teeth 52.Rotor is with after stator cooperates, and rotor punching 60 is positioned at the circular hole of stator punching 50.
Referring to Fig. 5, rotor punching 60 has circular yoke section 61, and is provided with 33 teeth 62 that radially extend to circumferencial direction along rotor core 60 from yoke section 61, form a groove 63 between two adjacent teeth 62, therefore, the quantity of groove 63 equates with the quantity of tooth 62, also is 33.
In the present embodiment, the outside diameter φ A of rotor punching 60 is between 90 millimeters to 106 millimeters, preferably, is 98 millimeters.Offer the interior circular hole 64 of hollow at the middle part of rotor punching 60, the diameter phi B of interior circular hole 64 is between 17 millimeters to 25 millimeters, preferably, is 25 millimeters.
Referring to Fig. 6, the width of rebate C of the groove 63 of rotor punching 60 is between 0.9 millimeter to 1.1 millimeters, preferably, is 1.0 millimeters, and groove shoulder breadth degree D is between 3.7 millimeters to 3.9 millimeters, preferably, is 3.8 millimeters.And groove shoulder height degree E is between 0.8 millimeter to 1.0 millimeters, preferably, also be 0.86 millimeter, and the degree of depth F of groove 63 is between 15.0 millimeters to 15.2 millimeters, preferably, is 15.14 millimeters.In addition, the groove top radius R of groove 63 is between 0.35 millimeter to 0.55 millimeter, preferably, is 0.45 millimeter.
Like this, than existing rotor punching, groove 63 quantity of the rotor punching 60 of present embodiment increase to some extent, and the groove depth F of groove 63 increases, the area of groove 63 also increases to some extent, and the aluminum strip that forms behind cast aluminium is not prone to the situation of pore or disconnected bar, improves the qualification rate of motor.
Simultaneously, the size of groove 63 changes to some extent, and the yoke section 51 that makes stator punching 50 is more even with the magnetic density on the tooth 62 of rotor punching 60.Measure by the magnetic density to stator core and rotor core, the magnetic density of the yoke section 51 of stator core is 9300 Gausses when motor moves, and the magnetic density of the tooth 62 of rotor punching 60 is 9500 Gausses.As seen, the magnetic density on the magnetic density of the yoke section 51 of stator punching 50 and the tooth 62 of rotor punching 60 is comparatively approaching, is difficult for vibration-generating during the motor operation, and noise is corresponding minimizing also, and the operation of motor is more steady, and reliability is higher.
It is emphasized that at last; the utility model is not limited to above-mentioned execution mode, changes also should be included in the protection range of the utility model claim in the size range of setting such as width of rebate, groove shoulder breadth degree, groove shoulder height degree, groove depth length and groove top radius.
Claims (10)
1. rotor punching comprises
Circular yoke section and from described yoke section a plurality of teeth that radially extend to circumferencial direction along described rotor punching, form groove between two adjacent teeth, and described rotor punching has the interior circular hole of hollow, and the diameter of described interior circular hole is between 17 millimeters to 25 millimeters;
It is characterized in that:
The quantity of described tooth is 33, the outside diameter of described rotor punching is between 90 millimeters to 106 millimeters, the width of rebate of described groove is between 0.9 millimeter to 1.1 millimeters, the groove shoulder breadth degree of described groove is between 3.7 millimeters to 3.9 millimeters, the groove shoulder height degree of described groove is between 0.8 millimeter to 1.0 millimeters, and the degree of depth of described groove is between 15.0 millimeters to 15.2 millimeters.
2. rotor punching according to claim 1 is characterized in that:
The groove top radius of described groove is between 0.35 millimeter to 0.55 millimeter.
3. rotor punching according to claim 1 and 2 is characterized in that:
Described outside diameter is 98 millimeters, and the diameter of described interior circular hole is 25 millimeters, and described width of rebate is 1.0 millimeters, and described groove shoulder breadth degree is 3.8 millimeters, and described groove shoulder height degree is 0.86 millimeter, and the degree of depth of described groove is 15.14 millimeters.
4. rotor punching according to claim 2 is characterized in that:
Described groove top radius is 0.45 millimeter.
5. rotor core, the rotor punching identical by the multi-disc shape is overrided to form, each described rotor punching has circular yoke section and a plurality of teeth that radially extend to circumferencial direction along described rotor punching from described yoke section, form groove between two adjacent teeth, and described rotor punching has the interior circular hole of hollow, and the diameter of described interior circular hole is between 17 millimeters to 25 millimeters;
It is characterized in that:
The quantity of described tooth is 33, the outside diameter of described rotor punching is between 90 millimeters to 106 millimeters, the width of rebate of described groove is between 0.9 millimeter to 1.1 millimeters, the groove shoulder breadth degree of described groove is between 3.7 millimeters to 3.9 millimeters, the groove shoulder height degree of described groove is between 0.8 millimeter to 1.0 millimeters, and the degree of depth of described groove is between 15.0 millimeters to 15.2 millimeters.
6. rotor core according to claim 5 is characterized in that:
The groove top radius of described groove is between 0.35 millimeter to 0.55 millimeter.
7. it is characterized in that according to claim 5 or 6 described rotor cores:
Described outside diameter is 98 millimeters, and the diameter of described interior circular hole is 25 millimeters, and described width of rebate is 1.0 millimeters, and described groove shoulder breadth degree is 3.8 millimeters, and described groove shoulder height degree is 0.86 millimeter, and the degree of depth of described groove is 15.14 millimeters.
8. motor comprises
Stator and rotor, described rotor has rotor core, described rotor core is overrided to form by the identical rotor punching of multi-disc shape, each described rotor punching has circular yoke section and a plurality of teeth that radially extend to circumferencial direction along described rotor punching from described yoke section, form groove between two adjacent teeth, and described rotor punching has the interior circular hole of hollow, and the diameter of described interior circular hole is between 17 millimeters to 25 millimeters;
It is characterized in that:
The quantity of described tooth is 33, the outside diameter of described rotor punching is between 90 millimeters to 106 millimeters, the width of rebate of described groove is between 0.9 millimeter to 1.1 millimeters, the groove shoulder breadth degree of described groove is between 3.7 millimeters to 3.9 millimeters, the groove shoulder height degree of described groove is between 0.8 millimeter to 1.0 millimeters, and the degree of depth of described groove is between 15.0 millimeters to 15.2 millimeters.
9. motor according to claim 8 is characterized in that:
The groove top radius of described groove is between 0.35 millimeter to 0.55 millimeter.
10. it is characterized in that according to claim 8 or 9 described motors:
Described outside diameter is 98 millimeters, and the diameter of described interior circular hole is 25 millimeters, and described width of rebate is 1.0 millimeters, and described groove shoulder breadth degree is 3.8 millimeters, and described groove shoulder height degree is 0.86 millimeter, and the degree of depth of described groove is 15.14 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220274408 CN202737602U (en) | 2012-06-11 | 2012-06-11 | Rotor punching sheet, rotor core, and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220274408 CN202737602U (en) | 2012-06-11 | 2012-06-11 | Rotor punching sheet, rotor core, and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202737602U true CN202737602U (en) | 2013-02-13 |
Family
ID=47663263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220274408 Expired - Lifetime CN202737602U (en) | 2012-06-11 | 2012-06-11 | Rotor punching sheet, rotor core, and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202737602U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114257004A (en) * | 2020-09-25 | 2022-03-29 | 全亿大科技（佛山）有限公司 | Motor rotor sheet, motor rotor, motor and fan |
-
2012
- 2012-06-11 CN CN 201220274408 patent/CN202737602U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114257004A (en) * | 2020-09-25 | 2022-03-29 | 全亿大科技（佛山）有限公司 | Motor rotor sheet, motor rotor, motor and fan |
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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: 20130213 |