CN210444139U - Motor and electric device - Google Patents
Motor and electric device Download PDFInfo
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- CN210444139U CN210444139U CN201921627988.9U CN201921627988U CN210444139U CN 210444139 U CN210444139 U CN 210444139U CN 201921627988 U CN201921627988 U CN 201921627988U CN 210444139 U CN210444139 U CN 210444139U
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- bus bar
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Abstract
The embodiment of the utility model provides a motor and electrical equipment, this motor has the rotation axis; a bus bar assembly having a bus bar and a bus bar holder; and a circuit board having a connection terminal extending in an axial direction, the connection terminal being inserted through a through hole of the circuit board, the circuit board being connected with the connection terminal by press-fit fitting, wherein the connection terminal has a contact portion interference-fitted with an inner periphery of the through hole of the circuit board, and a first support portion at least a part of which is embedded in the bus bar holder, the first support portion includes a circumferential support portion, a width of the circumferential support portion in a circumferential direction is larger than a width of the contact portion in the circumferential direction, the circumferential support portion is in contact with the bus bar holder, and a surface of one axial side of the circumferential support portion is protruded from a surface of one axial side of the bus bar holder. Through the embodiment of the utility model provides a, can prevent the axial float of the relative busbar holder of busbar terminal.
Description
Technical Field
The embodiment of the utility model provides a relate to the motor field.
Background
In a conventional motor, in a structure in which a circuit board is disposed in a bus bar assembly and electrical connection with the bus bar assembly is achieved, conventionally, bus bar terminals extending in an axial direction of the bus bar assembly are inserted into a plurality of through holes of the circuit board, respectively, and the bus bar terminals are soldered to the circuit board.
With the widespread use of press-fit fitting, a press-fit fitting technique is generally applied to electrical connection between a circuit board and a bus bar terminal of a bus bar assembly, and in a press-fit fitting structure between a circuit board and a bus bar assembly of a conventional structure, a bus bar terminal for press-fit fitting formed in a bus bar assembly has a contact portion with a diameter enlarged, and the circuit board has a through hole, and the circuit board is press-fitted into a bus bar assembly in which the bus bar terminal for press-fit fitting is integrally formed, so that the outer diameter of the contact portion is interference-fitted with the inner diameter of the through hole of the circuit board to achieve connection.
It should be noted that the above background description is provided only for the sake of clarity and complete description of the technical solutions of the present invention, and for the sake of understanding by those skilled in the art. These 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 invention.
SUMMERY OF THE UTILITY MODEL
However, the inventors have found that, when the above-described press-fit fitting is employed, when the circuit board is press-fitted to the bus bar terminal for press-fit fitting, if the pressing force is excessively large, axial play of the bus bar terminal with respect to the bus bar holder may be caused, resulting in inaccurate axial positioning of the circuit board.
In order to solve at least one of the above problems, an embodiment of the present invention provides a motor and an electrical apparatus having the same, which can prevent axial movement of a bus bar terminal relative to a bus bar holder.
According to a first aspect of embodiments of the present invention, there is provided a motor having a rotary shaft extending along a central axis; a bus bar assembly disposed around the rotation shaft with the center axis as a center, the bus bar assembly having a bus bar and a bus bar holder on which the bus bar is mounted; and a circuit board, the circuit board set up in axial one side of the busbar holder, the busbar has the connecting terminal that extends along the axial, connecting terminal run-through inserts in the perforating hole of circuit board, the circuit board through the press fit with connecting terminal connects, wherein, connecting terminal have with the contact site of the inner peripheral interference fit of the perforating hole of circuit board, and at least some buries first supporting part in the busbar holder, first supporting part includes circumference supporting part, circumference supporting part is greater than the width of contact site in circumference, circumference supporting part with the busbar holder contact, and the surface of the axial one side of circumference supporting part is followed the surface protrusion of the axial one side of busbar holder.
In at least one embodiment, the other axial side of the circumferential support portion is buried in the bus bar holder.
In at least one embodiment, the circumferential support portion is connected to the contact portion in the axial direction, the first support portion further has an axial support portion that is distant from the contact portion with respect to the circumferential support portion, and the circumferential support portion has a width in the circumferential direction that is larger than a width of the axial support portion in the circumferential direction.
In at least one embodiment, the bus bar assembly further has a second support portion that supports the circuit board, which protrudes from the bus bar holder to one axial side, the second support portion having a support surface that contacts a surface of the other axial side of the circuit board, the support surface being located at the same axial position as a surface of the one axial side of the circumferential support portion.
In at least one embodiment, the bus bar assembly further has a second support portion that supports the circuit board, which protrudes from the bus bar holder to one axial side, the second support portion having a support surface that is in contact with a surface of the other axial side of the circuit board, the support surface being axially closer to the circuit board with respect to the surface of the one axial side of the circumferential support portion.
In at least one embodiment, the bus bar extends from the connection terminal toward a radially outer side to be formed in a U-shaped structure recessed toward the other side in the axial direction of the bus bar holder.
In at least one embodiment, the motor further has an induction magnet ring component disposed between the circuit board and the bus bar holder.
In at least one embodiment, the bus bar holder has a side wall portion extending in an axial direction, and a thick-walled portion protruding from an inner periphery of the side wall portion toward a radially inner side and extending in the axial direction, a surface on one axial side of the thick-walled portion being closer to the other axial side of the bus bar holder with respect to a surface on one axial side of the side wall portion, the connection terminal protruding from the surface on one axial side of the thick-walled portion and extending in the axial direction, and a surface on one axial side of the circumferential support portion of the connection terminal protruding from the surface on one axial side of the thick-walled portion.
In at least one embodiment, the second support portion includes a pin-shaped structure integrally formed with the bus bar holder and extending in a direction axially toward the circuit board, the pin-shaped structure having a through portion inserted through a through hole of the circuit board and a mounting portion axially positioned between the through portion and the bus bar holder, a surface of the mounting portion on one axial side is the support surface, and an outer diameter of the support surface is larger than an outer diameter of the through portion.
According to a second aspect of embodiments of the present invention, there is provided an electrical device, wherein the electrical device comprises the motor of the aforementioned first aspect.
One of the beneficial effects of the embodiment of the application lies in: the first supporting part which is larger than the circumferential width of the contact part is arranged, so that the axial supporting force between the connecting terminal and the bus bar holder is enhanced, the axial movement of the connecting terminal relative to the bus bar holder can be prevented in the process of pressing the circuit board into the bus bar holder, and the inaccurate axial positioning of the circuit board is avoided. And because the circumferential support part protrudes from the surface of the bus bar retainer, whether the connecting terminal generates axial displacement or not can be observed in the assembling process, and the generation of defective products is effectively avoided.
Specific embodiments of the present invention are disclosed in detail with reference to the following description and the accompanying drawings, which specify the manner in which the principles of the invention may be employed. It should be understood that the embodiments of the present invention are not so limited in scope. The embodiments of the invention 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 invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, 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 a motor according to embodiment 1 of the present invention;
fig. 2 is a schematic view of a bus bar assembly of embodiment 1 of the present invention;
fig. 3 is a schematic view of a connection terminal according to embodiment 1 of the present invention;
fig. 4 is an enlarged view of a connection terminal according to embodiment 1 of the present invention;
fig. 5 is a sectional view of a bus bar assembly of embodiment 1 of the present invention;
fig. 6 is a schematic view of a bus bar according to embodiment 1 of the present invention.
Detailed Description
The foregoing and other features of the invention will become apparent from the following description taken in conjunction with the accompanying drawings. In the description and drawings, particular embodiments of the invention have been disclosed in detail as being indicative of some of the embodiments in which the principles of the invention may be employed, it being understood that the invention is not limited to the embodiments described, 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 invention, the terms "first", "second", and the like are used for distinguishing different elements from each other in a descriptive sense, but do not denote any spatial arrangement, temporal order, or the like of the elements, and the elements should not be limited by these 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 invention, the singular forms "a", "an", and the like 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 the following description of the present invention, unless otherwise specified, a direction extending along or parallel to the central axis of the motor is referred to as "axial direction", a radial direction centering on the central axis is referred to as "radial direction", and a direction around the central axis is referred to as "circumferential direction", but this is for convenience of description only, and does not limit the orientation of the motor when it is used or manufactured.
Example 1
The embodiment 1 of the utility model provides a motor.
Fig. 1 is a schematic view of a motor according to embodiment 1 of the present invention; fig. 2 is a schematic view of a bus bar assembly of embodiment 1 of the present invention; fig. 3 is a schematic view of a connection terminal according to embodiment 1 of the present invention; fig. 4 is an enlarged view of a connection terminal according to embodiment 1 of the present invention.
As shown in fig. 1 and 2, the motor 10 has a rotary shaft 11, a bus bar assembly 12, and a circuit board 13, wherein the rotary shaft 11 extends along a central axis O; the bus bar assembly 12 is disposed around the rotation shaft 11 with the center axis O as the center, and the bus bar assembly 12 includes a bus bar 121 and a bus bar holder 122 on which the bus bar 121 is mounted; the circuit board 13 is provided on one axial side S (upper side in fig. 1) of the bus bar holder 122, the bus bar 121 has a connection terminal 1211 extending in the axial direction, the connection terminal 1211 is inserted through the through hole 131 of the circuit board 13, and the circuit board 13 is connected to the connection terminal 1211 by press-fitting.
In the present embodiment, as shown in fig. 3 and 4, the connection terminal 1211 has a contact portion 1212 that is interference-fitted with the inner periphery of the through hole 131 of the circuit board 13, and a first support portion 1213 that is at least partially embedded in the bus bar holder 122, the first support portion 1213 including a circumferential support portion 1214, a width d1 of the circumferential support portion 1214 in the circumferential direction being larger than a width d2 of the contact portion 1212 in the circumferential direction, where the width in the circumferential direction refers to the maximum length of a line connecting two points of the circumferential support portion 1214 in the direction perpendicular to the axial direction; the circumferential support portion 1214 is in contact with the bus bar holder 122, and an axial one-side surface F1 of the circumferential support portion 1214 protrudes from an axial one-side surface F2 of the bus bar holder 122.
That is, as shown in fig. 3 and 4, the surface F1 of the circumferential support portion 1214 protrudes to one side in the axial direction from the surface F2 of the bus bar holder 122 when viewed in cross section, and both form a stepped structure.
With this configuration, by providing the circumferential support portion 1214 larger than the circumferential width of the contact portion 1212, the axial supporting force between the connection terminal 1211 and the bus bar holder 122 is enhanced, so that it is possible to prevent the axial movement of the connection terminal 1211 with respect to the bus bar holder 122 in the process of press-fitting the circuit board 13 into the bus bar holder 122, thereby avoiding the inaccurate axial positioning of the circuit board 13. And since the circumferential support portion 1214 protrudes from the surface of the bus bar holder 122, it can be observed whether the connection terminal 1211 is axially shifted during the assembly process, effectively avoiding the generation of defective products.
It should be noted that: the width d1 of the circumferential support portion 1214 in the circumferential direction and the width d2 of the contact portion 1212 in the circumferential direction are linear lengths rather than arc lengths around the central axis O.
In the present embodiment, as described above, one axial side of the bus bar holder 122 is S, and similarly, the other axial side of the bus bar holder 122 is D (as shown in fig. 1).
In the present embodiment, as shown in fig. 3, the other axial side of the circumferential support portion 1214 may not be buried in the bus bar holder 122, that is, the surface F3 on the other axial side of the circumferential support portion 1214 is closer to the one axial side S than the surface F2 on the one axial side of the bus bar holder 122 on the outer periphery thereof, and is in surface contact with the one axial side of the bus bar holder 122.
However, the present embodiment is not limited to this, and for example, as shown in fig. 4, the other axial side of the circumferential support portion 1214 may be buried in the bus bar holder 122, that is, the surface F3 on the other axial side of the circumferential support portion 1214 is closer to the other axial side D of the bus bar holder 122 than the surface F2 on the one axial side of the bus bar holder 122 on the outer periphery thereof. That is, at least a part of the circumferential support portion 1214 is embedded in the bus bar holder 122 so as to extend in the axial direction, and the bus bar holder 122 located on the outer periphery of the circumferential support portion 1214 and the surface of one axial side of the bus bar holder located on the other axial side of the circumferential support portion 1214 form a stepped structure. This widens the axial depth of the circumferential support portion 1214, thereby more reliably preventing the connection terminal 1211 from moving in the axial direction relative to the bus bar holder 122.
In the present embodiment, as shown in fig. 3 and 4, the circumferential support portion 1214 is connected with the contact portion 1212 in the axial direction, the first support portion 1213 further has an axial support portion 1215 farther from the contact portion 1212 than the circumferential support portion 1214, and a width d3 of the circumferential support portion 1214 in the circumferential direction is larger than a width d4 of the axial support portion 1215 in the circumferential direction.
That is, the first support portion 1213 is formed in two parts, i.e., a circumferential support portion 1214 and an axial support portion 1215, and the circumferential support portion 1214 may be partially embedded in the bus bar holder 122 (see fig. 4), or may be entirely located on one axial side S of the bus bar holder 122 (see fig. 3) on the premise of being in contact with the bus bar holder 122; the axial support portion 1215 is located axially further to the other side than the circumferential support portion 1214, and the axial support portion 1215 is entirely embedded in the busbar holder 122.
Thereby, the axial support portion 1215 may provide support for the circumferential support portion 1214, thereby further preventing the connection terminal 1211 from being displaced during press-fitting of the circuit board 13.
Fig. 5 is a sectional view of a bus bar assembly according to embodiment 1 of the present invention.
In the present embodiment, as shown in fig. 1, 2, and 5, the bus bar assembly 12 further has a second support portion 123 protruding from the bus bar holder 122 to one axial side S for supporting the circuit board 13, the second support portion 123 having a support surface 1231 in contact with the surface E1 on the other axial side of the circuit board 13, the support surface 1231 being located at the same axial position as the surface F1 on the one axial side of the circumferential support portion 1214.
That is, the surface F1 of the circumferential support portion 1214 is located on the same plane as the support surface 1231, which is perpendicular to the axial direction, whereby the circuit board 13 can be prevented from being tilted while the axial play is prevented by the first support portion 1213 while the circuit board 13 is kept on the same plane in the axial direction.
In the present embodiment, the seating surface 1231 and the surface F1 of the circumferential support portion 1214 may not be aligned in the same plane perpendicular to the axial direction, as described above.
For example, the bearing surface 1231 may be axially closer to the circuit board 13 than the surface F1 on the one axial side of the circumferential bearing portion 1214. That is, in fig. 5, the horizontal position of the bearing surface 1231 may be higher than the horizontal position of the surface F1 on the one axial side of the circumferential bearing portion 1214.
This prevents the circuit board 13 from directly acting on the surface of the circumferential support portion 1214 during press-fitting into the connection terminal 1211, and thus, excessive force from being applied to the connection terminal 1211.
In this case, the circuit board 13 may be directly mounted on the support surface 1231, but the circuit board 13 is not directly mounted on the surface F1 of the circumferential support portion 1214, and for example, a boss may be provided near the connection terminal 1211, and the circuit board 13 may be mounted on the support surface 1231 and the boss, thereby preventing the circuit board 13 from being inclined.
Fig. 6 is a schematic view of a bus bar according to embodiment 1 of the present invention.
In the present embodiment, as shown in fig. 1, 5, and 6, the bus bar 121 is formed to extend radially outward from the connection terminal 1211 in a U-shaped configuration recessed toward the other axial side D of the bus bar holder 122.
With this configuration, the bus bar 121 can support the circuit board 13 by the repulsive force toward the one axial side S of the U-shaped structure itself, and the connection terminal 121 has the circumferential support portion 1214, so that a larger reverse support force (support force toward the one axial side S) can be applied to the circuit board 13 when the axial play occurs. And resin is filled in the bus bar structure with the U-shaped structure, so that the bus bar can be held in multiple directions, and the bus bar is effectively prevented from moving in multiple directions.
In the present embodiment, as shown in fig. 1, the motor 10 further has an induction magnetic ring component 14, and the induction magnetic ring component 14 is disposed between the circuit board 13 and the bus bar holder 122. For example, the induction magnetic ring part 14 may be disposed at one side in the axial direction of the rotating shaft 11. Alternatively, the radially inner peripheral surface of the bus bar holder 122 is formed with an accommodation space in which the induction magnet ring member 14 is disposed.
Therefore, the advance angle adjustment can be realized by adjusting the whole bus bar assembly, and the interference between the circuit board 13 and the induction magnetic ring part 14 caused by the inclination of the circuit board 13 is avoided.
In the present embodiment, as shown in fig. 2, the bus bar holder 122 has a side wall portion 1221 extending in the axial direction, and a thick-walled portion 1222 protruding from the inner periphery of the side wall portion 1221 toward the radially inner side and extending in the axial direction, and a surface F4 on one axial side of the thick-walled portion 1222 is closer to the other axial side D of the bus bar holder 122 than a surface F5 on one axial side of the side wall portion 1221, that is, the horizontal position of a surface F4 of the thick-walled portion 1222 is lower than the horizontal position of a surface F5 of the side wall portion 1221 as viewed from the orientation shown in fig. 2.
Further, the connection terminal 1211 protrudes from the surface F4 on the one axial side of the thick portion 1222 to extend in the axial direction, and the surface F1 on the one axial side of the circumferential support portion 1214 of the connection terminal 1211 protrudes from the surface F4 on the one axial side of the thick portion 1222, that is, the surface F1 of the first support portion 1213 protrudes from the surface F4 of the thick portion 1222 to the one axial side when viewed in cross section, forming a stepped structure.
Thus, the thick portion 1222 can reliably support the connection terminal 1211, thereby further preventing axial movement of the connection terminal 1211.
In the present embodiment, as shown in fig. 2, the second support portion 123 includes a pin-shaped structure 124 that is integrally formed with the bus bar holder 122 and extends in the axial direction toward the circuit board 13, the pin-shaped structure 124 includes a through portion 125 that is inserted through the through hole 131 of the circuit board 13, and a mounting portion 126 that is positioned between the through portion 125 and the bus bar holder 122 in the axial direction, a surface of one axial side of the mounting portion 126 is a support surface 1231, and an outer diameter of the support surface 1231 is larger than an outer diameter of the through portion 125, where the outer diameter of the support portion 1231 is, for example, the outer diameter of the mounting portion 126.
Thus, by providing the second support portions 1233 to the pin-shaped structures 124, the second support portions 123 do not occupy an excessive space inside the bus bar holder 122, and the second support portions 123 can be easily press-fitted into the circuit board by the penetrating portions 125.
In the present embodiment, the second supporting portion 123 may have another structure besides the pin-shaped structure 124, and the present embodiment does not limit this.
In the present embodiment, as shown in fig. 2, the number of the connection terminals 1211 is 5, but the present embodiment does not limit the number of the connection terminals 1211.
In the present embodiment, as shown in fig. 2, the number of the second support portions 1233 is 2, but the present embodiment does not limit the number of the second support portions 1233.
In this embodiment, the motor 10 further includes other components such as a stator and a rotor, and the other components are the same as those in the prior art and are not described herein again.
With the structure of the motor of the present embodiment, by providing the circumferential support portion 1214 larger than the circumferential width of the contact portion 1212, the axial supporting force between the connection terminal 1211 and the bus bar holder 122 is enhanced, so that it is possible to prevent the axial movement of the connection terminal 1211 with respect to the bus bar holder 122 in the process of press-fitting the circuit board 13 into the bus bar holder 122, thereby avoiding inaccurate axial positioning of the circuit board 13.
Example 2
Embodiment 2 provides an electrical device having the motor described in embodiment 1, and since the main structure of the motor has been described in detail in embodiment 1, the content of the motor is included herein, and the description thereof is omitted.
In the present embodiment, the electric device may be any device in which a motor is mounted, for example, a vehicle-mounted device in which a dual clutch transmission motor is mounted, and the motor may be applied to power supply for a vehicle, an industrial motor, a compression pump, a household appliance, and the like.
With the structure of the motor of the electrical apparatus according to the embodiment of the present application, by providing the circumferential support portion 1214 larger than the circumferential width of the contact portion 1212, the axial support force between the connection terminal 1211 and the bus bar holder 122 is enhanced, so that it is possible to prevent the connection terminal 1211 from moving in the axial direction with respect to the bus bar holder 122 in the process of pressing the circuit board 13 into the bus bar holder 122, thereby avoiding inaccurate axial positioning of the circuit board 13. And since the circumferential support portion 1214 protrudes from the surface of the bus bar holder 122, it can be observed whether the connection terminal 1211 is axially shifted during the assembly process, effectively avoiding the generation of defective products.
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.
Claims (10)
1. A motor, the motor having:
a rotating shaft extending along a central axis;
a bus bar assembly disposed around the rotation shaft with the center axis as a center, the bus bar assembly having a bus bar and a bus bar holder on which the bus bar is mounted; and
a circuit board disposed at one axial side of the bus bar holder,
the bus bar has a connection terminal extending in an axial direction, the connection terminal is inserted through a through hole of the circuit board, the circuit board is connected with the connection terminal by press-fitting,
it is characterized in that the preparation method is characterized in that,
the connection terminal has a contact portion that is interference-fitted with an inner periphery of the through hole of the circuit board, and a first support portion that is at least partially embedded in the bus bar holder,
the first support portion includes a circumferential support portion having a width in the circumferential direction larger than a width of the contact portion in the circumferential direction,
the circumferential support portion is in contact with the bus bar holder, and an axial one-side surface of the circumferential support portion protrudes from an axial one-side surface of the bus bar holder.
2. The motor of claim 1,
the other axial side of the circumferential support portion is embedded in the bus bar holder.
3. The motor of claim 2,
the circumferential support portion is connected to the contact portion in the axial direction,
the first support portion further comprises an axial support portion remote from the contact portion relative to the circumferential support portion,
the circumferential support portion has a width in the circumferential direction larger than a width of the axial support portion in the circumferential direction.
4. The motor of claim 2,
the bus bar assembly further has a second support portion that protrudes from the bus bar holder toward one axial side and supports the circuit board, the second support portion having a support surface that contacts a surface on the other axial side of the circuit board,
the bearing surface and the surface of the circumferential bearing portion on one axial side are located at the same axial position.
5. The motor of claim 2,
the bus bar assembly further has a second support portion that protrudes from the bus bar holder toward one axial side and supports the circuit board, the second support portion having a support surface that contacts a surface on the other axial side of the circuit board,
the support surface is axially closer to the circuit board than an axially-side surface of the circumferential support portion.
6. The motor of claim 1,
the bus bar extends radially outward from the connection terminal and is formed into a U-shaped structure recessed toward the other axial side of the bus bar holder.
7. The motor according to claim 4 or 5,
the motor also has an induction magnet ring component disposed between the circuit board and the bus bar holder.
8. The motor of claim 1,
the bus bar holder has a side wall portion extending in an axial direction, and a thick-walled portion protruding from an inner periphery of the side wall portion toward a radially inner side and extending in the axial direction,
a surface on one axial side of the thick-walled portion is closer to the other axial side of the bus bar holder than a surface on one axial side of the side wall portion,
the connection terminal protrudes from an axial one-side surface of the thick-walled portion and extends in an axial direction, and an axial one-side surface of the circumferential support portion of the connection terminal protrudes from an axial one-side surface of the thick-walled portion.
9. The motor according to claim 4 or 5,
the second support portion includes a pin-like structure integrally formed with the bus bar holder and extending in a direction axially toward the circuit board,
the pin-shaped structure has a through portion inserted through the through hole of the circuit board, and a mounting portion located between the through portion and the bus bar holder in the axial direction, a surface on one axial side of the mounting portion is the support surface, and an outer diameter of the support surface is larger than an outer diameter of the through portion.
10. An electrical apparatus, characterized in that it comprises a motor according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921627988.9U CN210444139U (en) | 2019-09-27 | 2019-09-27 | Motor and electric device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921627988.9U CN210444139U (en) | 2019-09-27 | 2019-09-27 | Motor and electric device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210444139U true CN210444139U (en) | 2020-05-01 |
Family
ID=70411198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921627988.9U Active CN210444139U (en) | 2019-09-27 | 2019-09-27 | Motor and electric device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210444139U (en) |
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2019
- 2019-09-27 CN CN201921627988.9U patent/CN210444139U/en active Active
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