CN204928391U - Rotor core , rotor and motor - Google Patents
Rotor core , rotor and motor Download PDFInfo
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- CN204928391U CN204928391U CN201520580791.XU CN201520580791U CN204928391U CN 204928391 U CN204928391 U CN 204928391U CN 201520580791 U CN201520580791 U CN 201520580791U CN 204928391 U CN204928391 U CN 204928391U
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- punching
- rotor
- shaft hole
- rotor punching
- end rotor
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Abstract
The utility model discloses a rotor core, rotor and motor, rotor core includes at least three rotor punching, the rotor punching has the pivot hole, the axial superpose in pivot hole is followed to at least three rotor punching, the rotor punching divide into the first end rotor punching, the second end rotor punching and establish the middle rotor punching between first end rotor punching and the second end rotor punching, each diameter that all is greater than the pivot hole of middle rotor punching in the diameter in the diameter in the pivot hole of first end rotor punching and the pivot hole of the second end rotor punching, and at the quadrature in the plane of the axis in pivot hole, the projection in the pivot hole of middle rotor punching is arranged in the projection in each pivot hole in the pivot hole of pivot hole and the second end rotor punching of first end rotor punching. According to the utility model discloses a rotor core is at cast aluminium in -process pivot hole non -deformable to the motor noise can be reduced, motor production efficiency is improved.
Description
Technical field
The utility model relates to technical field of motors, in particular to a kind of rotor core, has the rotor of described rotor core and has the motor of described rotor.
Background technology
Rotor core in correlation technique is in cast aluminium process, adopt extrusion process, the core of mould is supported on the end faces of the rotor core, easily causes shaft hole to be out of shape, thus the airgap uniformity degree affected after the axiality of rotor, axis and circular runout and assembling, and then produce noise.For this reason, after cast aluminium, need increase by one shaft hole trimming, cause production efficiency low.
Utility model content
The utility model is intended to solve one of above-mentioned technical problem in correlation technique at least to a certain extent.For this reason, the utility model proposes a kind of rotor core, this rotor core is not easily out of shape at cast aluminium process transfer axis hole, thus can reduce motor noise, raising motor production efficiency.
The utility model also proposes a kind of rotor with described rotor core.
This use is novel also proposes a kind of motor with described rotor.
For achieving the above object, according to first aspect of the present utility model, a kind of rotor core is proposed, described rotor core comprises at least three rotor punchings, described rotor punching has shaft hole, described at least three rotor punchings are stacked along the axis of described shaft hole, described rotor punching is divided into first end rotor punching, the second end rotor punching and the center roller punching be located between described first end rotor punching and described the second end rotor punching, each in the diameter of the diameter of the shaft hole of described first end rotor punching and the shaft hole of described the second end rotor punching is all greater than the diameter of the shaft hole of described center roller punching, and in the plane of axis being orthogonal to described shaft hole, the projection of the shaft hole of described center roller punching is arranged in the projection of each shaft hole of the shaft hole of described first end rotor punching and the shaft hole of described the second end rotor punching.
Not easily be out of shape at cast aluminium process transfer axis hole according to rotor core of the present utility model, thus motor noise, raising motor production efficiency can be reduced.
In addition, following additional technical characteristic can also be had according to rotor core of the present utility model:
Described first end rotor punching is at least two, and described the second end rotor punching is at least two.
Each in described first end rotor punching and described the second end rotor punching is 5.
The degree of depth sum of the shaft hole of at least two described first end rotor punchings is more than or equal to 1 millimeter, and the degree of depth sum of the shaft hole of at least two described the second end rotor punchings is more than or equal to 1 millimeter.
Described center roller punching is at least two and the central axes of the shaft hole of at least two described center roller punchings.
The central axis of the central axis of the shaft hole of described first end rotor punching and the shaft hole of described the second end rotor punching respectively with the central axes of the shaft hole of described center roller punching.
In the shaft hole of described first end rotor punching and the shaft hole of described the second end rotor punching, the diameter of any one is greater than the diameter 2-20 millimeter of the shaft hole of described center roller punching.
The equal diameters of the diameter of the shaft hole of described first end rotor punching and the shaft hole of described the second end rotor punching.
Propose a kind of rotor according to second aspect of the present utility model, described rotor comprises: rotor core, and described rotor core is the rotor core according to first aspect of the present utility model; The both ends of the surface of the axis along described rotor core of described rotor core are respectively equipped with cast aluminium end ring; Armature spindle, described armature spindle is engaged in the shaft hole of described center roller punching.
According to rotor of the present utility model have production efficiency high, can the advantages such as motor noise be reduced.
Propose a kind of motor according to the third aspect of the present utility model, described motor comprises the rotor according to second aspect of the present utility model.
Have according to motor of the present utility model that noise is little, production efficiency advantages of higher.
Accompanying drawing explanation
Fig. 1 is the structural representation of the center roller punching of rotor core according to the utility model embodiment.
Fig. 2 is the structural representation of the first end rotor punching of rotor core according to the utility model embodiment.
Fig. 3 is the structural representation of the rotor core according to the utility model embodiment.
Reference numeral: the shaft hole 31 of the shaft hole 21 of the shaft hole 11 of rotor core 1, first end rotor punching 10, first end rotor punching 10, the second end rotor punching 20, the second end rotor punching 20, center roller punching 30, center roller punching 30.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
Below with reference to the accompanying drawings rotor core 1 according to the utility model embodiment is described.
As shown in Figure 1-Figure 3, the rotor core 1 according to the utility model embodiment comprises at least three rotor punchings, and described rotor punching has shaft hole, and described at least three rotor punchings are stacked along the axis of described shaft hole.
Wherein, the described rotor punching center roller punching 30 that is divided into first end rotor punching 10, the second end rotor punching 20 and is located between first end rotor punching 10 and the second end rotor punching 20.In other words, first end rotor punching 10 and the second end rotor punching 20 lay respectively at the both ends of rotor core 1, and center roller punching 30 is positioned at the middle part of rotor core 1.Each in the diameter of the diameter of the shaft hole 11 of first end rotor punching 10 and the shaft hole 21 of the second end rotor punching 20 is all greater than the diameter of the shaft hole 31 of center roller punching 30, and in the plane of axis being orthogonal to described shaft hole, the projection of the shaft hole 31 of center roller punching 30 is arranged in the projection of each of the shaft hole 11 of first end rotor punching 10 and the shaft hole 21 of the second end rotor punching 20.
According to the rotor core 1 of embodiment of the present utility model, by offering the shaft hole of different-diameter on the rotor punching of diverse location, make the diameter of the shaft hole 11 of the first end rotor punching 10 at the both ends being positioned at rotor core 1 and the shaft hole 21 of the second end rotor punching 20 be greater than the diameter of the shaft hole 31 of the center roller punching 30 at the middle part being positioned at rotor core 1, thus make the diameter of the shaft hole of the end of rotor core 1 be greater than the diameter of the shaft hole at middle part.Such rotor core 1 is in cast aluminium process, the core of mould contacts with the second end rotor punching 20 with first end rotor punching 10, and avoid with the shaft hole 31 of center roller punching 30, the shaft hole 31 of center roller punching 30 can be avoided thus to be out of shape, after the shaft hole 31 of armature spindle and center roller punching 30 assembles, the airgap uniformity degree after the axiality of rotor, axis and circular runout and assembling can be ensured, thus reduce the noise of motor.In addition, due in cast aluminium process, can not there is deformation in the shaft hole 31 of center roller punching 30, can save shaft hole trimming thus, and then significantly enhance productivity.Therefore, be not easily out of shape at cast aluminium process transfer axis hole according to rotor core 1 of the present utility model, thus motor noise, raising motor production efficiency can be reduced.
Below with reference to the accompanying drawings rotor core 1 according to the utility model specific embodiment is described.
In specific embodiments more of the present utility model, as shown in Figure 1-Figure 3, first end rotor punching 10 is at least two, and the second end rotor punching 20 is at least two.The shaft hole 21 of the shaft hole 11 of multiple first end rotor punching 10 and multiple the second end rotor punching 20 can be utilized thus to form enough hole depths at the two ends of rotor core 1, thus prevent the core of mould from weighing the shaft hole 31 of center roller punching 30 wounded further, and then ensure that the shaft hole 31 of center roller punching 30 can not be out of shape in cast aluminium process further.
Alternatively, each in first end rotor punching 10 and the second end rotor punching 20 is 5.
Particularly, the degree of depth sum of the shaft hole 11 of multiple first end rotor punching 10 is more than or equal to 1 millimeter, and the degree of depth sum of the shaft hole 21 of multiple the second end rotor punching 20 is more than or equal to 1 millimeter.
In concrete examples more of the present utility model, as shown in Figure 3, center roller punching 30 is at least two, and the central axes of the shaft hole 31 of at least two center roller punchings 30.The shaft hole 31 of multiple center roller punching 30 can be utilized like this to form enough hole depths at the middle part of rotor core 1, thus ensure the assembly reliability of the armature spindle coordinated with the shaft hole 31 of center roller punching 30.
Advantageously, as shown in Figure 3, in order to ensure the axiality of multiple rotor punchings of rotor core 1, facilitate the punching press of rotor punching, the central axis of the central axis of the shaft hole 11 of first end rotor punching 10 and the shaft hole 21 of the second end rotor punching 20 respectively with the central axes of the shaft hole 31 of center roller punching 30.
In specific embodiments more of the present utility model, in the shaft hole 11 of first end rotor punching 10 and the shaft hole 21 of the second end rotor punching 20, the diameter of any one is greater than the diameter 2-20 millimeter of the shaft hole 31 of center roller punching 30, to guarantee that the core of mould in cast aluminium process can avoid the shaft hole 31 of center roller punching 30.
Alternatively, the equal diameters of the diameter of the shaft hole 11 of first end rotor punching 10 and the shaft hole 21 of the second end rotor punching 20, in other words, in order to simplify production technology, first end rotor punching 10 is identical with the structure of the second end rotor punching 20, the structure of first end rotor punching 10 has been shown in Fig. 2, and the structure of the second end rotor punching 20 can refer to Fig. 2.
Such as, take overall diameter as the cage rotor of 62 millimeters, the diameter of the shaft hole 31 of center roller punching 30 is 8 millimeters, and the diameter of the shaft hole 11 of first end rotor punching 10 and the shaft hole 21 of the second end rotor punching 20 is 20 millimeters.
Rotor according to the utility model embodiment is described below.Rotor core, cast aluminium end ring (not shown) and armature spindle (not shown) is comprised according to the rotor of the utility model embodiment.
Described rotor core is the rotor core 1 according to the utility model above-described embodiment.The both ends of the surface of the axis along rotor core 1 of rotor core 1 are respectively equipped with cast aluminium end ring.Described armature spindle is engaged in the shaft hole 31 of center roller punching 30.
According to rotor of the present utility model, by utilizing according to the rotor core 1 of the utility model above-described embodiment, have production efficiency high, can the advantages such as motor noise be reduced.
Motor according to the utility model embodiment is described below.The rotor according to the utility model above-described embodiment is comprised according to the motor of the utility model embodiment.
According to motor of the present utility model, by utilizing according to the rotor of the utility model above-described embodiment, have that noise is little, production efficiency advantages of higher.
According to the motor of the utility model embodiment other form and operation be all known for those of ordinary skills, be not described in detail here.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In description of the present utility model, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature immediately below second feature and tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.In addition, the different embodiment described in this specification or example can carry out engaging and combining by those skilled in the art.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment, revises, replace and modification in scope of the present utility model.
Claims (10)
1. a rotor core, it is characterized in that, comprise at least three rotor punchings, described rotor punching has shaft hole, described at least three rotor punchings are stacked along the axis of described shaft hole, described rotor punching is divided into first end rotor punching, the second end rotor punching and the center roller punching be located between described first end rotor punching and described the second end rotor punching, each in the diameter of the diameter of the shaft hole of described first end rotor punching and the shaft hole of described the second end rotor punching is all greater than the diameter of the shaft hole of described center roller punching, and in the plane of axis being orthogonal to described shaft hole, the projection of the shaft hole of described center roller punching is arranged in the projection of each shaft hole of the shaft hole of described first end rotor punching and the shaft hole of described the second end rotor punching.
2. rotor core according to claim 1, is characterized in that, described first end rotor punching is at least two, and described the second end rotor punching is at least two.
3. rotor core according to claim 2, is characterized in that, each in described first end rotor punching and described the second end rotor punching is 5.
4. rotor core according to claim 2, it is characterized in that, the degree of depth sum of the shaft hole of at least two described first end rotor punchings is more than or equal to 1 millimeter, and the degree of depth sum of the shaft hole of at least two described the second end rotor punchings is more than or equal to 1 millimeter.
5. the rotor core according to any one of claim 1-4, is characterized in that, described center roller punching is at least two and the central axes of the shaft hole of at least two described center roller punchings.
6. rotor core according to claim 1, it is characterized in that, the central axis of the central axis of the shaft hole of described first end rotor punching and the shaft hole of described the second end rotor punching respectively with the central axes of the shaft hole of described center roller punching.
7. rotor core according to claim 1, is characterized in that, in the shaft hole of described first end rotor punching and the shaft hole of described the second end rotor punching, the diameter of any one is greater than the diameter 2-20 millimeter of the shaft hole of described center roller punching.
8. rotor core according to claim 1, is characterized in that, the equal diameters of the diameter of the shaft hole of described first end rotor punching and the shaft hole of described the second end rotor punching.
9. a rotor, is characterized in that, comprising:
Rotor core, described rotor core is the rotor core according to any one of claim 1-8; The both ends of the surface of the axis along described rotor core of described rotor core are respectively equipped with cast aluminium end ring;
Armature spindle, described armature spindle is engaged in the shaft hole of described center roller punching.
10. a motor, is characterized in that, comprises rotor according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520580791.XU CN204928391U (en) | 2015-07-31 | 2015-07-31 | Rotor core , rotor and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520580791.XU CN204928391U (en) | 2015-07-31 | 2015-07-31 | Rotor core , rotor and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204928391U true CN204928391U (en) | 2015-12-30 |
Family
ID=54977489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520580791.XU Active CN204928391U (en) | 2015-07-31 | 2015-07-31 | Rotor core , rotor and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204928391U (en) |
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2015
- 2015-07-31 CN CN201520580791.XU patent/CN204928391U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |