CN214014075U - Motor and electric product - Google Patents
Motor and electric product Download PDFInfo
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- CN214014075U CN214014075U CN202022755316.5U CN202022755316U CN214014075U CN 214014075 U CN214014075 U CN 214014075U CN 202022755316 U CN202022755316 U CN 202022755316U CN 214014075 U CN214014075 U CN 214014075U
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- circuit board
- motor
- fixing
- base
- base member
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Abstract
The application provides a motor and an electric product. The motor has: a rotor rotatable about a central axis; a bearing supporting the rotor; a stator disposed to be opposed to the rotor in a radial direction; and a circuit board driving the motor. The stator has: a bushing that holds the bearing; and a base member located axially below the circuit board and extending in a radial direction. The bushing has: a cylindrical tube portion; a flange portion located axially below the cylindrical portion and extending in a radial direction; and a fixing portion located axially above the flange portion. The flange portion is in contact with an axially lower surface of the base member, and the fixing portion is in contact with an axially upper surface of the circuit board. Thus, the mounting board and the circuit board can be connected by a simple structure, and the number of manufacturing processes is reduced.
Description
Technical Field
The embodiment of the application relates to the field of electromechanics, in particular to a motor and an electric product.
Background
In the existing motor structure, the mounting plate is fixed on the bearing bush firstly, and then the circuit board is fixed on the mounting plate, so that the process is complex due to the fixing mode, and the structure for fixing the circuit board is required to be arranged on the mounting plate, so that the complexity and the working hours of the structure are increased.
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
In order to solve the problems identified by the above background art or other similar problems, embodiments of the present application provide an electric product of a motor.
According to an aspect of embodiments of the present application, there is provided a motor having: a rotor rotatable about a central axis; a bearing supporting the rotor; a stator disposed to be opposed to the rotor in a radial direction; and a circuit board driving the motor;
the stator has:
a bushing that holds the bearing; and
a base member located axially below the circuit board and extending in a radial direction;
wherein the bushing has:
a cylindrical tube portion;
a flange portion located axially below the cylindrical portion and extending in a radial direction; and
a fixing portion located axially above the flange portion;
the flange portion is in contact with an axially lower surface of the base member, and the fixing portion is in contact with an axially upper surface of the circuit board.
In some embodiments, the fixing portion has a fixing base portion extending upward in an axial direction from the flange portion and a bent portion extending radially outward from an upper end in the axial direction of the fixing base portion, and the axial upper surface of the circuit board is in contact with the bent portion.
In some embodiments, the number of the fixing portions is plural, and the plural fixing portions are arranged at equal intervals or unequal intervals in the circumferential direction around the cylindrical portion.
In some embodiments, the fixing portion is a tube protruding portion protruding radially outward from an outer surface of the tube, and the base member and the circuit board have a substrate recess portion and a circuit board recess portion, respectively, each having an outer circumferential dimension larger than an outer circumferential dimension of the tube protruding portion.
In some embodiments, the number of the cylindrical portion protruding portions is plural, and the plural cylindrical portion protruding portions are arranged at equal intervals or at unequal intervals in the circumferential direction.
In some embodiments, the number of the substrate recess and the circuit board recess is greater than or equal to the number of the barrel portion protrusion.
In some embodiments, the base member has a base hole portion through which the bush passes, and a base protruding portion extending radially inward from an inner peripheral surface of the base hole portion; the bushing has a recess recessed radially inward, and at least a part of the base projection is accommodated in the recess.
In some embodiments, the circuit board has a substrate hole portion through which the bushing passes, and a substrate protruding portion extending radially inward from an inner peripheral surface of the substrate hole portion; at least a portion of the substrate projection is received within the recess.
According to another aspect of the embodiments of the present application, there is provided an electric product including the motor of the foregoing embodiments.
One of the beneficial effects of the embodiment of the application lies in: in the structure of fixing the mounting plate and the circuit board to the bearing bush, the mounting plate and the circuit board are not fixed to the bearing bush separately but are riveted together, so that the mounting plate and the circuit board can be connected by a simple structure, and the number of manufacturing processes is 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. 1a is a schematic view of one example of a motor of an embodiment of the present application;
FIG. 1b is a schematic view of an axial cross-section of the motor shown in FIG. 1 a;
FIG. 2 is a schematic view of one example of a bushing of a motor of an embodiment of the present application;
FIG. 3 is a schematic view of another example of a bushing of a motor of an embodiment of the present application;
FIG. 4 is a schematic view of the outer peripheral dimensions of the substrate recess and the circuit board recess and the outer peripheral dimension of the barrel projection;
FIG. 5 is a schematic view of one example of a base member and bushing;
FIG. 6 is a schematic view of the base assembly shown in FIG. 5;
FIG. 7 is a schematic view of the bushing shown in FIG. 5;
FIG. 8 is a schematic view of one example of a base member, a bushing, and a circuit board;
fig. 9 is a schematic view of the circuit board 40 shown in fig. 8.
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 parallel to a direction extending along the central axis C of the motor is referred to as an "axial direction" for convenience of description; a direction from the bottom of the motor toward the cover of the motor is referred to as "upper" or "upper side" or "axially one side"; a direction from the cover portion of the motor toward the bottom portion of the motor is referred to as "lower" or "lower side" or "axially other side"; a radial direction centered on the central axis C is referred to as a "radial direction"; a direction close to the central axis C is referred to as "radially inward"; the direction away from the central axis C is referred to as "radially outward"; the direction around the center axis C 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. 1a is a schematic view of an example of a motor of an embodiment of the present application, fig. 1b is a schematic view of an axial section of the motor shown in fig. 1a, fig. 2 is a schematic view of an example of a bushing of the motor of the embodiment of the present application, and fig. 3 is a schematic view of another example of a bushing of the motor of the embodiment of the present application.
As shown in fig. 1a and 1b, the motor of the embodiment of the present application includes:
a rotor 10 rotatable about a central axis;
a bearing 20 supporting the rotor 10;
a stator 30 disposed to be opposed to the rotor 10 in a radial direction; and
a circuit board 40 driving the motor.
As shown in fig. 1b, the stator 30 includes a bush 31 that holds the bearing 20 and a base member 32 that extends in the radial direction and is positioned axially below the circuit board 40.
As shown in fig. 2 and 3, the bush 31 has a cylindrical tube portion 311; a flange portion 312 located axially below the cylindrical portion 311 and extending in the radial direction; and a fixing portion 313 located axially above the flange portion 312. In the present embodiment, the flange portion 312 of the bush 31 is in contact with the axially lower surface of the base member 32, and the fixing portion 313 of the bush 31 is in contact with the axially upper surface of the circuit board 40.
With this structure, in the structure in which the base member 32 (mounting plate) and the circuit board 40 are fixed to the bearing bush 31, the base member 32 and the circuit board 40 are not fixed to the bearing bush 31 separately but are fixed by caulking together, whereby the base member 32 and the circuit board 40 can be connected by a simple structure, and the number of manufacturing processes can be reduced.
In some embodiments, as shown in fig. 2, the fixing portion 313 has a fixing base 3131 extending upward in an axial direction from the flange portion 312 and a bending portion 3132 extending outward in a radial direction from an upper end in the axial direction of the fixing base 3131, and an upper surface in the axial direction of the circuit board 40 is in contact with the bending portion 3132. Thus, the circuit board 40 and the base member 32 can be fixed to the bush 31 by the fixing portion 313 provided to the flange portion 312 without fixing them by a complicated structure, and the fixing process can be saved.
In the above embodiment, the number of the fixing portions 313 may be plural. In some embodiments, the plurality of fixing portions 313 are arranged at equal or unequal intervals in the circumferential direction around the cylinder portion 31. By providing a plurality of fixing portions 313, the fixing strength can be improved.
In some embodiments, as shown in fig. 3, the fixing portion 313 is a cylindrical portion protruding portion 313 protruding radially outward from the outer surface of the cylindrical portion 311, and the base member 32 and the circuit board 40 have a substrate recess 321 and a circuit board recess 41, respectively, each having an outer circumferential dimension larger than that of the cylindrical portion protruding portion 313. Fig. 4 shows an outer circumferential dimension S1 of the substrate recess 321 and the circuit board recess 41 and an outer circumferential dimension S2 of the tube portion protrusion 313. Thereby, the circuit board 40 and the base member 32 can be connected by a simple structure.
In the above embodiment, the number of the cylindrical portion protruding portions 313 may be plural, and the plural cylindrical portion protruding portions 313 are arranged at equal intervals or unequal intervals in the circumferential direction. This can improve the fixing strength.
In the above-described embodiment, the number of the substrate recess 321 and the circuit board recess 41 may be greater than or equal to the number of the barrel portion protrusion 313. This can further improve the fixing strength.
Fig. 5 is a schematic view of one example of the base member 32 and the bush 31, fig. 6 is a schematic view of the base member 32 shown in fig. 5, and fig. 7 is a schematic view of the bush 31 shown in fig. 5. As shown in fig. 5 to 7, in some embodiments, the base member 32 has a base hole portion 322 through which the bush 31 passes and a base protruding portion 323 extending radially inward from an inner peripheral surface of the base hole portion 322; the bush 31 has a recess 314 recessed radially inward, and at least a part of the base protruding portion 323 is accommodated in the recess 314. With this structure, the base member 32 can be positioned in the circumferential direction, facilitating the fixing of the base member 32.
Fig. 8 is a schematic view of one example of the base member 32, the bush 31, and the circuit board 40, and fig. 9 is a schematic view of the circuit board 40 shown in fig. 8. As shown in fig. 8 and 9, in some embodiments, the circuit board 40 has a substrate hole portion 42 through which the bush 31 passes and a substrate protruding portion 43 extending radially inward from an inner peripheral surface of the substrate hole portion 42; at least a portion of the substrate projection 43 is received within the recess 314. With this structure, the circuit board 40 can be positioned in the circumferential direction, which is favorable for fixing the circuit board 40.
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. 1a to 9 or to reduce one or more components in fig. 1a to 9. 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 motor of the embodiment of the present application, in the structure in which the mounting plate and the circuit board are fixed to the bearing bush, the mounting plate and the circuit board are not fixed to the bearing bush separately but are fixed by caulking together, and thus the mounting plate and the circuit board can be connected by a simple structure, and the number of manufacturing processes can be reduced.
Embodiments of the second aspect
Embodiments of the second aspect of the present application provide an electrical product having a motor as described in embodiments of the first aspect. Since the structure of the electric product 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.
In the embodiment of the present application, as for other structures of the electrical product, reference may be made to related technologies, and a description thereof is omitted.
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 (9)
1. A motor, comprising: a rotor rotatable about a central axis; a bearing supporting the rotor; a stator disposed to be opposed to the rotor in a radial direction; and a circuit board driving the motor;
the stator has:
a bushing that holds the bearing; and
a base member located axially below the circuit board and extending in a radial direction;
characterized in that the bushing has:
a cylindrical tube portion;
a flange portion located axially below the cylindrical portion and extending in a radial direction; and
a fixing portion located axially above the flange portion;
the flange portion is in contact with an axially lower surface of the base member, and the fixing portion is in contact with an axially upper surface of the circuit board.
2. The motor according to claim 1, wherein the fixing portion has a fixing base portion extending upward in the axial direction from the flange portion and a bent portion extending radially outward from an upper end in the axial direction of the fixing base portion, and an axially upper surface of the circuit board is in contact with the bent portion.
3. The motor according to claim 2, wherein the number of the fixing portions is plural, and the plural fixing portions are arranged at equal intervals or unequal intervals in a circumferential direction around the cylinder portion.
4. The motor according to claim 1, wherein the fixing portion is a tube protruding portion protruding radially outward from an outer surface of the tube, and the base member and the circuit board each have a substrate recess portion and a circuit board recess portion each having an outer peripheral dimension larger than an outer peripheral dimension of the tube protruding portion.
5. The motor according to claim 4, wherein the number of the cylindrical protruding portions is plural, and the plural cylindrical protruding portions are arranged at equal intervals or unequal intervals in a circumferential direction.
6. The motor of claim 5, wherein the number of the base plate recesses and the circuit board recesses is greater than or equal to the number of the barrel portion protrusions.
7. The motor of claim 1,
the base member has a base hole portion through which the bush passes, and a base protruding portion extending radially inward from an inner peripheral surface of the base hole portion;
the bushing has a recess recessed radially inward, and at least a part of the base projection is accommodated in the recess.
8. The motor of claim 7,
the circuit board has a substrate hole portion through which the bush passes, and a substrate protruding portion extending radially inward from an inner peripheral surface of the substrate hole portion;
at least a portion of the substrate projection is received within the recess.
9. An electrical product, characterized in that it comprises a motor according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022755316.5U CN214014075U (en) | 2020-11-25 | 2020-11-25 | Motor and electric product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022755316.5U CN214014075U (en) | 2020-11-25 | 2020-11-25 | Motor and electric product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214014075U true CN214014075U (en) | 2021-08-20 |
Family
ID=77306959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022755316.5U Active CN214014075U (en) | 2020-11-25 | 2020-11-25 | Motor and electric product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214014075U (en) |
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2020
- 2020-11-25 CN CN202022755316.5U patent/CN214014075U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |