CN218387066U - High-speed motor capable of realizing concentric installation of multiple bearings - Google Patents
High-speed motor capable of realizing concentric installation of multiple bearings Download PDFInfo
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- CN218387066U CN218387066U CN202222647493.0U CN202222647493U CN218387066U CN 218387066 U CN218387066 U CN 218387066U CN 202222647493 U CN202222647493 U CN 202222647493U CN 218387066 U CN218387066 U CN 218387066U
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Abstract
The utility model discloses a can realize high-speed motor of concentric installation of multiaxis bearing, include: the wiring structure comprises a shell and a wiring structure, wherein the shell is divided into an inner shell and an outer shell, a first bearing mounting seat is integrally formed at one end of the inner shell, and the first bearing mounting seat is provided with a bearing mounting groove; high-speed motorThe device comprises a prepressing bearing mounting seat which is an annular structure with an outer edge and bearing mounting holes, wherein a plurality of second threading holes are distributed on the outer edge; the same inner diameter of the bearing mounting groove and the same inner diameter of the bearing mounting hole are both d 1 And the inner diameter of the stator is d 2 The outer diameter of the rotor magnet is d 3 ，d 2 Is equal to or greater than d 1 ，d 3 Is less than or equal to d 1 . The utility model discloses can guarantee two bearing concentricity of rotor subassembly, the atress distributes and all is in between two bearings, makes the motor still can the steady job under super high rotational speed, and whole motor reaches better quality and higher life.
Description
Technical Field
The utility model relates to a can realize the concentric high speed motor who installs of multiaxis bearing, especially small-size or miniature high speed motor, especially be applicable to the small-size or miniature high-speed brushless motor of hair-dryer.
Background
High speed blowers are currently being pursued by more and more consumers, and thus the demand for high speed motors, which are the power part of high speed blowers, is also increasing. A high-speed motor for a hair dryer is required to have: the requirements of miniaturization, high speed and low noise, etc., wherein how to realize the stability and prolong the service life of the motor at high rotation speed, is one of the problems that need to be continuously discussed in the technology.
The structure of the traditional motor mainly comprises a stator assembly, a rotor assembly and bearings which are respectively positioned at two ends of a rotor magnet; this structure and mounting method are not problematic in the case of low rotation speed, large bearing and large torque, but if a small precision bearing is required in a small motor or a micro motor, especially in the case of a rotation speed exceeding 5 rpm, the above-mentioned mounting method of the conventional structure cannot meet the requirement, and the bearings at both ends of the motor rotor cannot be concentrically positioned and mounted.
In view of this, the utility model provides a can conveniently process, and can guarantee the solution of bearing concentricity.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can realize the high-speed motor of the concentric installation of multiaxis bearing to realize the concentric installation of small-size or miniature high-speed motor both ends bearing high accuracy.
The utility model discloses the technical scheme who adopts as follows: a high-speed motor capable of realizing concentric installation of multiple bearings comprises:
the shell is divided into an inner shell and an outer shell, and a plurality of guide reinforcing ribs are arranged between the inner shell and the outer shell, so that the whole shell forms a cylindrical structure with an air duct;
a wiring structure; comprises a circuit board, a wire holder, a wiring terminal bracket and a connecting wire;
the high-speed motor further comprises: the prepressing bearing mounting seat is of an annular structure with an outer edge and bearing mounting holes, and a plurality of second threading holes are distributed on the outer edge; the bearing mounting hole of the prepressing bearing mounting seat is used for accommodating a second bearing of the rotor assembly, a prepressing spring and a clamp spring;
an impeller; the first bearing mounting seat is arranged at one end close to the first bearing mounting seat and is connected with the rotating shaft output end of the rotor assembly.
The outer edge of the pre-pressing bearing mounting seat is connected with the inner shell in a clamped mode to achieve pre-fixing, and after the pre-pressing bearing mounting seat and the first bearing mounting seat determine concentricity, the pre-pressing bearing mounting seat is bonded or welded and fixed.
Wherein, the same inner diameter of the bearing mounting groove and the same inner diameter of the bearing mounting hole are both d 1 And the inner diameter of the stator is d 2 The outer diameter of the rotor magnet is d 3 ，d 2 Is equal to or greater than d 1 ，d 3 Is less than or equal to d 1 。
Preferably, the high-speed motor further includes: stator wiring cover: the stator wiring cover is an annular structure with a through hole in the center, and a plurality of first wiring holes are distributed on the upper end face of the stator wiring cover; the outer diameter of the stator wiring cover is consistent with the inner diameter of the inner shell, and the stator rubber coating are connected with the stator wiring cover;
wherein the inner diameter of the through hole of the stator wiring cover is d 4 Inner diameter d of through hole of stator wiring cover 4 Equal to the inner diameter d of the stator 2 I.e. d 4 Is equal to d 2 While d is 4 Is equal to or greater than d 1 。
The utility model discloses a can realize the high-speed motor of concentric installation of multiaxis bearing, its advantage and efficiency lie in: the utility model discloses can guarantee two bearing concentricity of rotor subassembly, the atress distributes and all is in between two bearings, and then reaches the motor and still can the steady job under super high rotational speed, makes whole motor reach better quality and higher life.
Drawings
FIG. 1 is a sectional view of a high-speed motor according to embodiment 1 of the present invention
Fig. 2 is an exploded view of a high-speed motor structure in embodiment 1 of the present invention
FIG. 3 is a cross-sectional view of the structure of embodiment 2 of the present invention
The numbers in the figures are as follows:
1-housing 11-inner housing 12-outer housing
13-reinforcing rib 111-first bearing mounting seat 1111-bearing mounting groove
2-rotor assembly 21-first bearing 22-second bearing
3-wiring structure 4-stator wiring cover 41-through hole
42-first threading hole 5-stator 6-prepressing bearing mounting seat
61-outer edge 62-bearing mounting hole
7-prepressing spring 8-impeller 9-snap spring
10-jig bar
Detailed Description
The structure of the present invention will be further described with reference to the accompanying drawings and examples.
Example 1
As shown in fig. 1 and 2, the utility model relates to a can realize high-speed motor of concentric installation of multiaxis bearing, include:
a housing 1, which is divided into an inner housing 11 and an outer housing 12, wherein a plurality of guiding reinforcing ribs 13 are arranged between the inner housing and the outer housing, so that the whole housing forms a cylindrical structure with an air duct, wherein one end of the inner housing is integrally formed with a first bearing mounting seat 111, and the first bearing mounting seat is provided with a bearing mounting groove 1111 for accommodating a first bearing 21 of a rotor assembly 2; wherein, the bearing mounting groove 1111 can be provided with a step to support against the outer ring of the first bearing 21; or the bearing mounting groove 1111 is a through hole, and the first bearing 21 is fixed with the bearing outer ring by dispensing after being mounted in the bearing mounting groove.
A wiring structure 3; comprises a circuit board, a wire holder, a wiring terminal bracket and a connecting wire;
stator wiring cover 4: the stator wiring cover is of an annular structure with a through hole 41 in the center, and a plurality of first wiring holes 42 are distributed on the upper end face of the stator wiring cover; the outer diameter of the stator wiring cover is consistent with the inner diameter of the inner shell, and the stator rubber coating are connected with the stator wiring cover.
The high-speed motor further comprises: the prepressing bearing mounting seat 6 is of an annular structure with an outer edge 61 and bearing mounting holes 62, a plurality of second threading holes (not shown) are distributed on the outer edge, and correspond to a plurality of first threading holes on the end face of the stator threading cover and are used for leading out motor wires; the bearing mounting hole of the prepressing bearing mounting seat is used for accommodating a second bearing 22 of the rotor assembly, a prepressing spring 7 and a clamp spring 9;
an impeller 8; the first bearing mounting seat is arranged at one end close to the first bearing mounting seat and is connected with the rotating shaft output end of the rotor assembly.
The pre-pressing bearing installation seat 6 can be connected with the inner shell 11 in a clamping mode to achieve pre-fixing, and after the pre-pressing bearing installation seat 6 and the first bearing installation seat 111 determine concentricity, the pre-pressing bearing installation seat and the first bearing installation seat are bonded or welded and fixed.
Wherein, the inner diameter of the bearing mounting groove 1111 of the first bearing mounting seat is the same as the inner diameter of the bearing mounting hole 62 of the pre-pressing bearing mounting seat, and the inner diameters are d 1 And the inner diameter of the stator is d 2 The outer diameter of the rotor magnet is d 3 The inner diameter of the stator wiring cover through hole 41 is d 4 Then there is d 2 ＝d 4 While d is 2 And d 4 Are all equal to or greater than d 1 ；d 3 Is less than or equal to d 1 。
Example 2
A high-speed motor capable of realizing concentric installation of multiple bearings comprises the following installation processes: firstly, a stator is arranged in a space in a motor inner shell, and then a stator wiring cover is connected with the stator wiring cover; clamping the pre-pressing bearing mounting seat on the inner shell of the motor, inserting a concentric jig rod 10 (as shown in figure 3) at the moment, wherein the outer diameter of the concentric jig rod is the same as the outer diameter of the bearing of the rotor assembly, and then fixing the outer edge of the pre-pressing bearing mounting seat with the inner shell in a bonding or welding mode to realize the concentricity of the first bearing mounting seat and the pre-pressing bearing mounting seat; then taking out the concentric jig rods, and loading the concentric jig rods into a rotor assembly consisting of a rotating shaft, two bearings and a magnet; pressing a pre-pressing spring into a bearing mounting hole of the pre-pressing bearing mounting seat; the motor wire is physically and electrically connected with the circuit board through the first wire through hole, the second wire through hole, the wiring terminal bracket and the wiring holder; and finally, loading the impeller.
It should be noted that above-mentioned tool stick 10 is optional auxiliary fixtures, not for realizing the utility model discloses a necessary technological means, accessible laser or other concentric positioning system replace this concentric tool stick supplementary, realize that first bearing mount pad and pre-compaction bearing mount pad are concentric, and then realize the concentric installation of two bearings, make the motor still can stable work under super high rotational speed.
It should be noted that the high-speed motor provided by the utility model can be applied to the related fields of electric hair dryer, bladeless fan, negative pressure dust collector, hand drier, bathroom drying, etc.; the directional phrases referred to in this application, for example: up, down, left, right, front, rear, inner, outer, lateral, etc., are simply directions with reference to the drawings. Throughout the description of the present application, it is to be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be. Also, it will be appreciated by those of ordinary skill in the art that in various embodiments of the invention, numerous technical details are set forth in order to provide a better understanding of the invention. However, without these technical details and with various changes and modifications based on the above embodiments, may be made and implemented without departing from the scope of protection defined by the claims of the present invention.
Claims (4)
1. A high-speed motor capable of realizing concentric installation of multiple bearings comprises: the casing, casing divide into interior casing and shell body, are provided with a plurality of water conservancy diversion strengthening ribs between interior casing and the shell body to make whole casing form the cylindric structure that has the wind channel, its characterized in that: a first bearing mounting seat is integrally formed at one end of the inner shell, and is provided with a bearing mounting groove for accommodating a first bearing of the rotor assembly;
a wiring structure; comprises a circuit board, a wire holder, a wiring terminal bracket and a connecting wire;
the high-speed motor further comprises: the prepressing bearing mounting seat is of an annular structure with an outer edge and bearing mounting holes, and a plurality of second threading holes are distributed on the outer edge; the bearing mounting hole is used for accommodating a second bearing of the rotor assembly, a pre-pressing spring and a clamp spring;
wherein, the same inner diameter of the bearing mounting groove and the same inner diameter of the bearing mounting hole are both d 1 And the inner diameter of the stator is d 2 The outer diameter of the rotor magnet is d 3 ，d 2 Is equal to or greater than d 1 ，d 3 Is less than or equal to d 1 。
2. A high-speed motor capable of realizing concentric mounting of multiple bearings according to claim 1, wherein: the high-speed motor further comprises: stator wiring cover: the stator wiring cover is an annular structure with a through hole in the center, and a plurality of first wiring holes are distributed on the upper end face of the stator wiring cover; the outer diameter of the stator wiring cover is consistent with the inner diameter of the inner shell, and the stator rubber coating are connected with the stator wiring cover.
3. A high-speed motor capable of realizing concentric mounting of multiple bearings according to claim 2, wherein: the inner diameter of the through hole of the stator wiring cover is d 4 Inner diameter d of through hole of stator wiring cover 4 Equal to the inner diameter d of the stator 2 I.e. d 4 Is equal to d 2 While d is 4 Is equal to or greater than d 1 。
4. A high-speed motor capable of realizing concentric mounting of multiple bearings according to any one of claims 1 to 3, wherein: the high-speed motor further comprises: an impeller; the first bearing mounting seat is arranged at one end close to the first bearing mounting seat and is connected with the rotating shaft output end of the rotor assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222647493.0U CN218387066U (en) | 2022-10-09 | 2022-10-09 | High-speed motor capable of realizing concentric installation of multiple bearings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222647493.0U CN218387066U (en) | 2022-10-09 | 2022-10-09 | High-speed motor capable of realizing concentric installation of multiple bearings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218387066U true CN218387066U (en) | 2023-01-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222647493.0U Active CN218387066U (en) | 2022-10-09 | 2022-10-09 | High-speed motor capable of realizing concentric installation of multiple bearings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218387066U (en) |
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2022
- 2022-10-09 CN CN202222647493.0U patent/CN218387066U/en active Active
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