CN213754222U - Motor spindle, rotor module and hub motor - Google Patents
Motor spindle, rotor module and hub motor Download PDFInfo
- Publication number
- CN213754222U CN213754222U CN202023037118.1U CN202023037118U CN213754222U CN 213754222 U CN213754222 U CN 213754222U CN 202023037118 U CN202023037118 U CN 202023037118U CN 213754222 U CN213754222 U CN 213754222U
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- motor spindle
- annular mounting
- mounting plate
- motor
- rotor module
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Abstract
The application provides a motor spindle, rotor module and in-wheel motor, motor spindle includes: the axis body with locate the annular mounting panel on the outer peripheral face of axis body: the annular mounting plate is provided with a plurality of first fixing holes which are distributed at intervals around the shaft body, and the first fixing holes are used for penetrating fastening bolts capable of being fixed with the wheel hub; the plate surface of the annular mounting plate is provided with a lightening groove, and the first fixing hole and the lightening groove are arranged at intervals; the thickness of the annular mounting plate at the position where the first fixing hole is provided is larger than that at the position where the lightening groove is provided. The motor spindle is uneven in thickness, so that the motor spindle not only meets the strength requirement, but also can reduce the self weight, and is beneficial to the light-weight design of a vehicle.
Description
Technical Field
The utility model relates to a motor manufacturing field particularly, relates to a motor spindle, rotor module and in-wheel motor.
Background
The hub motor comprises a rotor module and a rotor assembly which are matched with each other, a cover plate is arranged on one side of the rotor module, and the cover plate is connected with the rotor module through a bolt and covers the rotor module, so that the rotor module is in a relatively closed environment. At present, the apron is provided with a plurality of bolt holes, and in order to increase bolted connection's stability, the apron thickness near the bolt hole needs to reach certain requirement, and consequently the apron is whole thick, and then leads to whole weight great, is unfavorable for the lightweight of vehicle.
The inventor researches and discovers that the existing motor spindle has the following defects:
the weight is heavy, which is not favorable for the light weight of the vehicle.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a motor spindle, rotor module and in-wheel motor, its light in weight does benefit to the lightweight design of vehicle.
The embodiment of the utility model is realized like this:
in a first aspect, the present invention provides an electric motor spindle, the electric motor spindle comprising:
the axis body with locate the annular mounting panel on the outer peripheral face of axis body:
the annular mounting plate is provided with a plurality of first fixing holes which are distributed at intervals around the shaft body, and the first fixing holes are used for penetrating fastening bolts capable of being fixed with the wheel hub; the plate surface of the annular mounting plate is provided with a lightening groove, and the first fixing hole and the lightening groove are arranged at intervals; the thickness of the annular mounting plate at the position where the first fixing hole is provided is larger than that at the position where the lightening groove is provided.
In an alternative embodiment, the annular mounting plate has an inboard face for contact with the wheel hub, the lightening slots being provided in the inboard face.
In an alternative embodiment, the number of weight-reducing slots is plural.
In an alternative embodiment, the plurality of weight-reduction grooves are all located on the same plate surface of the annular mounting plate.
In an alternative embodiment, the first fixing holes and the weight-reduction grooves are alternately arranged in the circumferential direction of the shaft body.
In an alternative embodiment, the weight-reduction groove extends on the outer circumferential surface of the annular mounting plate on the side remote from the shaft body.
In an optional embodiment, the annular mounting plate is further provided with a second fixing hole for passing a bolt, and the second fixing hole is located at the outer side of the first fixing hole in the radial direction of the shaft body.
In a second aspect, the present invention provides a rotor module, the rotor module comprising:
the motor spindle of any one of the preceding embodiments.
In an alternative embodiment, the rotor module further comprises a rotor housing, to which the motor spindle is connected.
Third aspect, the utility model provides an in-wheel motor, in-wheel motor includes:
the rotor module of the foregoing embodiment.
The embodiment of the utility model provides a beneficial effect is:
in summary, the present embodiment provides a motor spindle, where a first fixing hole and a lightening slot are formed on the motor spindle, the first fixing hole is used for a fastening bolt to pass through, and the fastening bolt can be screwed with a wheel hub, so that the position of the motor spindle relative to a rotor module remains unchanged, and the motor spindle and a rotor of the rotor module rotate together. The annular mounting plate of the motor spindle is provided with the lightening grooves, and the lightening grooves and the first fixing holes are arranged at intervals, namely, the plate thickness of the annular mounting plate is not equal everywhere, and the plate thickness of the annular mounting plate at the position of the lightening grooves is smaller than that at the position of the first fixing holes.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a motor spindle according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional structural view of the motor spindle according to the embodiment of the present invention;
fig. 3 is a schematic structural diagram of a deformation structure of the motor spindle according to the embodiment of the present invention;
fig. 4 is a schematic cross-sectional structural view of a deformation structure of the motor spindle according to an embodiment of the present invention.
Icon:
100-a motor spindle; 110-shaft body; 111-a central hole; 120-ring mounting plate; 121-a first fixing hole; 122-weight reduction slots; 123-a second fixing hole; 200-fixing the bolt.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
At present, the motor spindle 100 is disposed at the inner side of the wheel hub, and the motor spindle 100 is fixedly connected with the wheel hub through a bolt. In the design, the strength of motor spindle 100 at the position where the bolt is inserted has a requirement, that is, the thickness of motor spindle 100 at the position where the bolt is inserted has a requirement, so that the overall thickness of motor spindle 100 is relatively thick in the design, and thus, motor spindle 100 has a heavy weight and is high in cost.
Referring to fig. 1 to 4, in view of this, the present embodiment provides a motor spindle 100, which can not only reduce the weight of the motor spindle 100, but also does not affect the structural strength of the motor spindle 100 at the position where the bolt is inserted, and the motor spindle 100 ensures the structural strength on the premise of meeting the weight reduction, reduces the cost, and is beneficial to the light weight design of the vehicle.
Referring to fig. 1 or fig. 3, in the present embodiment, the motor spindle 100 includes:
the annular mounting plate 120 is provided with a plurality of first fixing holes 121, the plurality of first fixing holes 121 are arranged around the axle body 110 at intervals, and the first fixing holes 121 are used for penetrating fastening bolts capable of being fixed with a wheel hub; a lightening groove 122 is formed in the plate surface of the annular mounting plate 120, and the first fixing holes 121 and the lightening groove 122 are arranged at intervals; the plate thickness of the annular mounting plate 120 at the position where the first fixing hole 121 is provided is larger than the plate thickness at the position where the lightening groove 122 is provided.
In this embodiment, the motor spindle 100 is provided with a first fixing hole 121 and a lightening slot 122, the first fixing hole 121 is used for a fastening bolt to pass through, and the fastening bolt can be screwed with a wheel hub after passing through the motor spindle 100, so that the position of the motor spindle 100 relative to the wheel hub is kept unchanged, and the functions of protecting the rotor module and transmitting power are achieved. Because the annular mounting plate 120 of the motor spindle 100 is provided with the lightening grooves 122, and the lightening grooves 122 and the first fixing holes 121 are arranged at intervals, that is, the plate thickness of the motor spindle 100 is not equal everywhere, and the plate thickness of the motor spindle 100 at the first position of the lightening grooves 122 is smaller than the plate thickness of the motor spindle 100 at the second position of the first fixing holes 121, so that the plate thickness of the motor spindle 100 at the first fixing holes 121 is thicker, which can meet the strength requirement, and the plate thickness at the position without the first fixing holes 121 is thinner, which plays a role in lightening the weight of the motor spindle 100, thereby playing a role in lightening the weight of the in-wheel motor, and being beneficial to the light weight design of vehicles.
The thickness direction of the annular mounting plate 120 extends along the axis of the shaft body 110 of the motor spindle 100.
In this embodiment, it should be noted that the annular mounting plate 120 is disc-shaped, the annular mounting plate 120 has two circular plate surfaces that are arranged in parallel, and the thickness direction of the annular mounting plate 120 is a direction perpendicular to the circular plate surfaces. For convenience of description, two opposite circular plate surfaces of the annular mounting plate 120 are a first plate surface and a second plate surface, respectively, and when the motor spindle 100 is connected to the wheel hub, the second plate surface of the motor spindle 100 is closer to the wheel hub than the first plate surface. That is, a portion of the second plate surface is in contact with the wheel hub.
Optionally, the shaft body 110 and the annular mounting plate 120 are coaxially disposed, the shaft body 110 is provided with a central hole 111, and two ends of the central hole 111 in the extending direction thereof are respectively located on the first plate surface and the second plate surface.
It should be understood that the shape and number of the lightening grooves 122 are set as needed, and are not particularly limited in the present embodiment.
Referring to fig. 1, when the number of the weight-reducing slots 122 is plural, the plural weight-reducing slots 122 are uniformly spaced around the axis of the shaft body 110, and each weight-reducing slot 122 extends in the circumferential direction of the motor spindle 100. In the circumferential direction of the shaft body 110, a first position is provided between two adjacent lightening grooves 122, and at least one first fixing hole 121 is provided at the first position. In the embodiment, the plurality of first positions are connected into a whole, so that the structure strength is high, the deformation resistance is strong, and the damage is not easy to damage.
Further, when the lightening grooves 122 are provided in plurality, the plurality of lightening grooves 122 may be all located at one side of the motor spindle 100, or at least one lightening groove 122 may be provided at both sides of the motor spindle 100, respectively.
In this embodiment, the plurality of weight-reducing grooves 122 are all disposed on the same side of the motor spindle 100 and are all located on the second plate surface, so that when the weight-reducing cover plate is connected to the wheel hub, the end surface of the notch of the weight-reducing groove 122, that is, the second plate surface is attached to the wheel hub, the weight-reducing groove 122 is not exposed, the appearance of the motor spindle 100 is not easily affected, and impurities or dust are not easily accumulated in the weight-reducing groove 122, so that the motor spindle 100 is not easily contaminated.
Referring to fig. 3, it is apparent that the number of the weight-reducing grooves 122 may be one, and when there is one weight-reducing groove 122, the weight-reducing groove 122 is disposed around the shaft body 110. Further, a side of the lightening groove 122 away from the shaft body 110 extends to the edge of the motor spindle 100. Each first position is in a V shape, the opening of the first position of the V shape faces the edge of the motor spindle 100, and the first position is high in structural strength and not easy to damage.
In this embodiment, optionally, the first fixing hole 121 is a cylindrical hole, and after the bolt is inserted into the first fixing hole 121, the attachment area between the outer circumferential surface of the bolt and the hole wall of the first fixing hole 121 is large, the first fixing hole 121 and the bolt are well matched, tightly combined, and firmly and reliably positioned.
Further, the plurality of first fixing holes 121 are uniformly spaced in the circumferential direction of the shaft body 110.
In this embodiment, optionally, the annular mounting plate 120 is further provided with a plurality of second fixing holes 123, the plurality of second fixing holes 123 are uniformly arranged at intervals in the circumferential direction of the shaft body 110, the plurality of second fixing holes 123 are located at the outer side of the first fixing holes 121 in the radial direction of the shaft body 110, and the aperture of the second fixing holes 123 is smaller than that of the first fixing holes 121.
Further, the second fixing hole 123 is provided at a first position, that is, at a position where the plate thickness of the ring-shaped mounting plate 120 is thick, at both the first fixing hole 121 and the second fixing hole 123. And a bolt is arranged in the second fixing hole 123 in a penetrating manner, and the bolt can be fixed with the rotor shell of the rotor module in a threaded manner.
In other embodiments, the second fixing hole 123 may be disposed at a position where the plate thickness is thin, and on the premise that the structural strength of the second fixing hole 123 is satisfied, the thickness of a part of the annular mounting plate 120 is reduced, thereby further achieving the effect of reducing the weight.
In this embodiment, it should be noted that the shaft body 110 and the annular mounting plate 120 are integrally formed, and the overall structure is firm and reliable, and has high strength, low possibility of being damaged, and long service life.
The motor spindle 100 provided by the embodiment has high structural strength and light weight, and is beneficial to light weight design of a vehicle.
The embodiment further provides a rotor module, which includes a rotor housing and the motor spindle 100 mentioned in the above embodiment, the motor spindle 100 is disposed on the inner side of the wheel hub, and the fixing bolt 200 is disposed through the first fixing hole 121 and screwed to the wheel hub. Bolts are inserted into the second fixing holes 123 and are fixed to the rotor housing by screwing.
The rotor module that this embodiment provided, structural strength is high, light in weight.
The embodiment also provides an in-wheel motor which comprises the rotor module mentioned in the embodiment, and the in-wheel motor is light in weight and beneficial to light-weight design of a vehicle.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An electric motor spindle, comprising:
the axis body with locate the annular mounting panel on the outer peripheral face of axis body:
the annular mounting plate is provided with a plurality of first fixing holes which are distributed at intervals around the shaft body, and the first fixing holes are used for penetrating fastening bolts capable of being fixed with a wheel hub; a weight reduction groove is formed in the plate surface of the annular mounting plate, and the first fixing hole and the weight reduction groove are arranged at intervals; the thickness of the annular mounting plate at the position where the first fixing hole is formed is larger than that at the position where the lightening groove is formed.
2. The motor spindle of claim 1, wherein:
the annular mounting plate is provided with an inner side plate surface used for being in contact with the wheel hub, and the weight reduction groove is formed in the inner side plate surface.
3. The motor spindle of claim 1, wherein:
the number of the weight-reducing grooves is multiple.
4. The motor spindle of claim 3, wherein:
the weight reduction grooves are all located on the same plate surface of the annular mounting plate.
5. The motor spindle of claim 3, wherein:
the first fixing holes and the lightening grooves are alternately distributed in the circumferential direction of the shaft body.
6. The motor spindle of claim 1, wherein:
one side of the weight reduction groove, which is far away from the shaft body, extends to the outer peripheral surface of the annular mounting plate.
7. The motor spindle of claim 1, wherein:
still be equipped with the second fixed orifices that is used for wearing to establish the bolt on the annular mounting panel, the second fixed orifices is located first fixed orifices is in the radial ascending outside of axis body.
8. A rotor module, characterized in that the rotor module comprises:
an electric machine spindle as claimed in any one of claims 1 to 7.
9. The rotor module of claim 8, wherein:
the rotor module further comprises a rotor shell, and the motor spindle is connected with the rotor shell.
10. An in-wheel motor, characterized in that, the in-wheel motor includes:
the rotor module of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023037118.1U CN213754222U (en) | 2020-12-15 | 2020-12-15 | Motor spindle, rotor module and hub motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023037118.1U CN213754222U (en) | 2020-12-15 | 2020-12-15 | Motor spindle, rotor module and hub motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213754222U true CN213754222U (en) | 2021-07-20 |
Family
ID=76835260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023037118.1U Active CN213754222U (en) | 2020-12-15 | 2020-12-15 | Motor spindle, rotor module and hub motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213754222U (en) |
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2020
- 2020-12-15 CN CN202023037118.1U patent/CN213754222U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221209 Address after: 030000 Rooms 601, 602 and 605, Floor 6, Building 1, No. 4, Dong'e'er Lane, Taiyuan Xuefu Park, Taiyuan Comprehensive Reform Demonstration Zone, Shanxi Province Patentee after: SHANXI DONGHUI NEW ENERGY AUTOMOBILE RESEARCH INSTITUTE Co.,Ltd. Address before: Room c-0063, 2 / F, building 3, yard 30, Shixing street, Shijingshan District, Beijing Patentee before: Beijing Cuifeng Capital Investment Co.,Ltd. |