CN215681980U - Motor, driving device and vehicle - Google Patents
Motor, driving device and vehicle Download PDFInfo
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- CN215681980U CN215681980U CN202121367597.5U CN202121367597U CN215681980U CN 215681980 U CN215681980 U CN 215681980U CN 202121367597 U CN202121367597 U CN 202121367597U CN 215681980 U CN215681980 U CN 215681980U
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- motor
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Abstract
The application provides a motor, a driving device and a vehicle. The motor has a stator, a rotor, and a cylindrical housing that holds a stator core of the stator. The outer peripheral surface of the shell is provided with a plurality of connecting parts extending along the axial direction along the circumferential direction, and a first rib part with radial amplitude is arranged between every two connecting parts on the outer peripheral surface of the shell; the radial extent of the first rib portion increases with distance from the connecting portion. With this structure, vibration and noise due to torsional resonance of the stator core are reduced.
Description
Technical Field
The embodiment of the application relates to the field of electromechanics, in particular to a motor, a driving device and a vehicle.
Background
Conventionally, the following three methods are generally adopted for the vibration countermeasure of a motor: the method comprises the steps of reducing vibration by reducing exciting force for exciting the vibration; the second method is that the rigidity of the motor structure is increased to reduce the vibration; and thirdly, reducing vibration on the motor supporting part.
It should be noted that the above background description is only for the convenience of clear and complete description of the technical solutions of the present application and for the understanding of those skilled in the art. Such solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the present application.
SUMMERY OF THE UTILITY MODEL
The inventors have found that in order to reduce the weight and size of the product, a configuration in which a motor, a gear transmission, and an inverter are integrated is often employed. The motor is composed of a stator and a rotor, the stator core is held in a motor housing, stator core resonance such as a circular ring 4-order mode may be generated when the motor is driven, and at this time, vibration may be transmitted to the motor housing, and noise may be generated due to the resonance of the motor housing being excited. Further, in the structure in which the stator core is held by being burned to the motor case, the vibration of the stator core is more likely to be transmitted to the motor case than the structure in which the stator core is held by being fastened by the bolt.
In order to solve at least one of the above-described problems or other similar problems, embodiments of the present application provide a motor, a drive device, and a vehicle.
According to an aspect of the embodiments of the present application, there is provided a motor having a stator and a rotor, and a cylindrical housing holding a stator core of the stator,
a plurality of connecting parts extending along the axial direction are arranged on the peripheral surface of the shell along the circumferential direction;
a first rib part with radial amplitude is further arranged between every two connecting parts on the outer peripheral surface of the shell;
the radial extent of the first rib portion increases with distance from the connecting portion.
In some embodiments, the first ribs are arranged in plurality along the axial direction, and the axial distance between every two adjacent first ribs in the axial direction is equal.
In some embodiments, a plurality of fastening portions extending in the axial direction are further provided in the circumferential direction on the outer circumferential surface of the casing, the fastening portions being located at positions of the first ribs having the largest radial extent in the circumferential direction.
In some embodiments, the connecting portion further has a positioning portion at an axial end portion thereof, and the outer circumferential surface of the casing is further provided with a second rib portion, and both ends of the second rib portion in the axial direction are respectively connected to one axial side edge of the fastening portion and the other axial side edge of the positioning portion.
In some embodiments, the motor is fastened to an external component by the fastening portion.
In some embodiments, the plurality of fastening portions are disposed at equal intervals in a circumferential direction on an outer circumferential surface of the casing.
In some embodiments, the plurality of connection portions are provided at equal intervals in a circumferential direction on the outer circumferential surface of the casing.
According to another aspect of embodiments of the present application, there is provided a driving apparatus including:
speed change device, and
the motor of any preceding embodiment, fixed to the transmission.
In some embodiments, the motor is fastened to the transmission by a fastening portion.
According to a further aspect of the embodiments of the present application, there is provided a vehicle including the driving apparatus of any one of the preceding embodiments.
One of the beneficial effects of the embodiment of the application lies in: according to the structure of the motor of the embodiment of the application, the noise caused by the resonance of the stator core can be reduced.
Specific embodiments of the present application are disclosed in detail with reference to the following description and drawings, indicating the manner in which the principles of the application may be employed. It should be understood that the embodiments of the present application are not so limited in scope. The embodiments of the application include many variations, modifications and equivalents within the spirit and scope of the appended claims.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic view of one example of a motor of an embodiment of the present application;
FIG. 2 is a schematic view of another angle of the motor shown in FIG. 1;
FIG. 3 is a top view of the motor shown in FIG. 1;
fig. 4 is a schematic view of an example of a driving device of an embodiment of the present application.
Detailed Description
The foregoing and other features of the present application will become apparent from the following description, taken in conjunction with the accompanying drawings. In the description and drawings, particular embodiments of the application are disclosed in detail as being indicative of some of the embodiments in which the principles of the application may be employed, it being understood that the application is not limited to the described embodiments, but, on the contrary, is intended to cover all modifications, variations, and equivalents falling within the scope of the appended claims.
In the embodiments of the present application, the terms "first", "second", and the like are used for distinguishing different elements by reference, but do not denote a spatial arrangement, a temporal order, or the like of the elements, and the elements should not be limited by the terms. The term "and/or" includes any and all combinations of one or more of the associated listed terms. The terms "comprising," "including," "having," and the like, refer to the presence of stated features, elements, components, and do not preclude the presence or addition of one or more other features, elements, components, and elements.
In the embodiments of the present application, the singular forms "a", "an", and the like may include the plural forms and should be interpreted broadly as "a" or "an" and not limited to the meaning of "a" or "an"; furthermore, the term "comprising" should be understood to include both the singular and the plural, unless the context clearly dictates otherwise. Further, the term "according to" should be understood as "at least partially according to … …," and the term "based on" should be understood as "based at least partially on … …," unless the context clearly dictates otherwise.
In addition, in the following description of the present application, a direction extending along the central axis O of the motor or a direction parallel thereto is referred to as an "axial direction" for convenience of description; a radial direction centered on the central axis O is referred to as a "radial direction"; the direction close to the central axis O is referred to as "radially inward"; the direction away from the central axis O is referred to as "radially outward"; the direction around the center axis O is referred to as "circumferential direction". It should be noted that these are for convenience of illustration only and do not limit the orientation of the motor during use and manufacture.
Embodiments of the present application will be described below with reference to the drawings.
Embodiments of the first aspect
The embodiment of the application provides a motor.
Fig. 1 is a schematic view of an example of a motor 100 according to an embodiment of the present application, fig. 2 is a schematic view of another angle of the motor 100 shown in fig. 1, and fig. 3 is a plan view of the motor 100 shown in fig. 1, showing the motor 100 viewed from an axial direction.
As shown in fig. 1 to 3, a motor 100 of an embodiment of the present application includes: stator 10, rotor 20, and tubular housing 30, housing 30 holds stator core 11 of stator 10. The present application does not limit the structure of the stator 10 and the rotor 20, and reference may be made to the related art, and the description thereof is omitted.
In the embodiment of the present application, as shown in fig. 1 and 2, a plurality of connecting portions 31 extending in the axial direction are provided on the outer circumferential surface of the housing 30 in the circumferential direction, and a first rib 32 having a radial width is further provided between every two connecting portions 31 on the outer circumferential surface of the housing 30, and the radial width of the first rib 32 increases as the distance from the connecting portions 31 increases. Thus, by providing the connecting portion 31 at a position (i.e., a resonance antinode) where resonance occurs where vibration of the motor housing is large, rigidity at the position is increased, and thus vibration of the stator core at the time of resonance occurrence can be suppressed, and the noise level can be reduced.
In some embodiments, as shown in fig. 1 to 3, the plurality of connecting portions 31 are provided at equal intervals in the circumferential direction on the outer circumferential surface of the housing 30. This makes it possible to maintain the balance of the outer peripheral shape of the motor housing, to ensure the structural balance of the motor, and to suppress noise from the motor housing when the stator core resonates, because the connection portion 31 is likely to resonate at the installation position.
In some embodiments, as shown in fig. 1 and 2, the first ribs 32 are provided in plurality in the axial direction, and the axial distance between each two adjacent first ribs 32 in the axial direction is equal. Therefore, the balance of the outer peripheral shape of the motor shell can be kept, the balance of the structure of the motor is further ensured, and the noise level is further reduced.
In the above embodiment, as shown in fig. 1 and 2, the first rib portion 32 is formed as a fan-shaped rib, but the present invention is not limited thereto, and the first rib portion 32 may be formed in other shapes.
In the above embodiment, as shown in fig. 1 and fig. 2, four first ribs 32 are provided in the axial direction as an example, but the present application is not limited thereto, and more or fewer first ribs 32 may be provided in the axial direction according to the shape and size of the motor housing.
In some embodiments, as shown in fig. 1 and 2, a plurality of axially extending fastening portions 33 are further provided on the outer circumferential surface of the housing 30 in the circumferential direction, and as shown in fig. 3, the fastening portions 33 are located at positions of the first ribs 32 in the circumferential direction, which have the largest radial extent. Thereby, the overall weight of the motor housing is reduced compared to having the same radial extent for the entire circumference of the first rib 32.
In the above embodiment, the motor 100 is fastened to the external member by the fastening portion 33. The external component here is, for example, another component included in the device to which the motor is applied. For example, when the motor 100 is applied to a driving apparatus including other components such as a transmission in addition to the motor, the motor 100 may be fastened to the transmission by the fastening portion 33. The above is merely an example, and when the motor 100 is applied to other apparatuses, the external part may be other parts.
In the above embodiment, as shown in fig. 3, the fastening portion 33 may be configured to be provided with a bolt, that is, the motor 100 may be fastened to the external member by providing a bolt to the fastening portion 33. However, the present invention is not limited thereto, and the motor 100 may be fastened to the external member by the fastening portion 33 in another fastening method.
In the above embodiment, as shown in fig. 1 to 3, the plurality of fastening portions 33 are provided at equal intervals in the circumferential direction on the outer circumferential surface of the housing 30. This makes it possible to maintain the balance of the outer peripheral shape of the motor housing, to ensure the balance of the motor structure, to facilitate resonance at the positions between the fastening portions 33, and to suppress noise from the motor housing at the time of resonance of the stator core by providing the connecting portion 31 at the position between the two fastening portions 33.
In the above embodiment, as shown in fig. 1 and 2, the connecting portion 31 further includes the positioning portion 311 at an axial end portion thereof, the housing 30 further includes the second rib 34 at an outer peripheral surface thereof, and both ends of the second rib 34 in the axial direction are respectively connected to one axial side edge of the fastening portion 33 and the other axial side edge of the positioning portion 311. This can improve the structural stability of the motor housing.
It should be noted that, the above description is only made on the structure of the motor related to the present application, and the motor may also include other structures, and specifically, reference may be made to the related art, and the description is omitted here. It is also possible to add components not shown in fig. 1 to 3 or to reduce one or more components in fig. 1 to 3. Regarding other configurations and structures of the motor, the related art can be referred to, and the description thereof is omitted here.
According to the structure of the motor of the embodiment of the application, the noise caused by the resonance of the stator core can be reduced.
Embodiments of the second aspect
The embodiment of the application provides a driving device.
Fig. 4 is a schematic diagram of an example of a driving device 200 according to an embodiment of the present application, and as shown in fig. 4, the driving device 200 includes a transmission 300 and the motor 100 described in the embodiment of the first aspect. The motor 100 is fixed to the transmission 300 and electrically connected to the transmission 300 for providing a driving force to the transmission 300. The present application does not limit the structure of the transmission 300 and the fixing and connecting manner with the motor 100, and reference may be made to the related art, and the description thereof is omitted here.
In some embodiments, the motor 100 may be fastened to the transmission 300 by the fastening portion 33, and since in the embodiment of the first aspect, the fastening manner is explained, the content thereof is incorporated herein, and the explanation is omitted here.
Further, since the structure of the motor 100 has been described in detail in the embodiment of the first aspect, the contents thereof are incorporated herein, and the description thereof is omitted here.
Examples of the third aspect
Embodiments of the present application provide a vehicle including the driving device according to the embodiment of the second aspect. The present application does not limit the specific structure of the vehicle, and reference may be made to the related art, and the description thereof is omitted here.
The present application has been described in conjunction with specific embodiments, but it should be understood by those skilled in the art that these descriptions are intended to be illustrative, and not limiting. Various modifications and adaptations of the present application may occur to those skilled in the art based on the spirit and principles of the application and are within the scope of the application.
Preferred embodiments of the present application are described above with reference to the accompanying drawings. The many features and advantages of the embodiments are apparent from the detailed specification, and thus, it is intended by the appended claims to cover all such features and advantages of the embodiments that fall within the true spirit and scope thereof. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the embodiments of the present application to the exact construction and operation illustrated and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope thereof.
Claims (10)
1. A motor having a stator, a rotor, and a cylindrical housing holding a stator core of the stator,
a plurality of connecting parts extending along the axial direction are arranged on the peripheral surface of the shell along the circumferential direction,
a first rib part with radial amplitude is further arranged between every two connecting parts on the outer peripheral surface of the shell;
the radial extent of the first rib portion increases with distance from the connecting portion.
2. The motor of claim 1,
the first rib is provided with a plurality of along the axial, and the axial distance between every two adjacent first ribs is equal in the axial.
3. The motor of claim 1,
the outer circumferential surface of the casing is also provided with a plurality of fastening parts extending along the axial direction, and the fastening parts are positioned at the position with the maximum radial amplitude of the first rib part in the circumferential direction.
4. The motor of claim 3,
the axial end part of the connecting part is also provided with a positioning part, the outer peripheral surface of the shell is also provided with a second rib part, and two ends of the second rib part in the axial direction are respectively connected with one axial side edge of the fastening part and the other axial side edge of the positioning part.
5. The motor according to claim 3, wherein the motor is fastened to an external member by the fastening portion.
6. The motor according to claim 3, wherein the plurality of fastening portions are provided at equal intervals in a circumferential direction on an outer circumferential surface of the housing.
7. The motor according to claim 1, wherein the plurality of connecting portions are provided at equal intervals in a circumferential direction on an outer circumferential surface of the housing.
8. A drive device, characterized in that the drive device comprises:
speed change device, and
the motor of any one of claims 1 to 7, which is fixed to the transmission.
9. The drive device according to claim 8,
the motor is fastened to the transmission through a fastening portion.
10. A vehicle, characterized in that the vehicle comprises a drive arrangement according to claim 8 or 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121367597.5U CN215681980U (en) | 2021-06-18 | 2021-06-18 | Motor, driving device and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121367597.5U CN215681980U (en) | 2021-06-18 | 2021-06-18 | Motor, driving device and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215681980U true CN215681980U (en) | 2022-01-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121367597.5U Active CN215681980U (en) | 2021-06-18 | 2021-06-18 | Motor, driving device and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215681980U (en) |
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2021
- 2021-06-18 CN CN202121367597.5U patent/CN215681980U/en active Active
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