CN218850477U - Motor rotor device, motor device and dust collector - Google Patents
Motor rotor device, motor device and dust collector Download PDFInfo
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- CN218850477U CN218850477U CN202220688318.3U CN202220688318U CN218850477U CN 218850477 U CN218850477 U CN 218850477U CN 202220688318 U CN202220688318 U CN 202220688318U CN 218850477 U CN218850477 U CN 218850477U
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Abstract
The utility model discloses an electric motor rotor device, motor device and dust catcher, the electric motor rotor device includes: the device comprises a rotating shaft, magnetic steel, a first balance ring and a second balance ring; in the region of the rotating shaft for mounting the first balance ring, the magnetic steel and the second balance ring, the radial sections at any positions are the same; the first balance ring, the magnetic steel and the second balance ring are sequentially nested in the rotating shaft. The utility model provides an electric motor rotor device, motor device and dust catcher can promote the precision of pivot, reduces the price of pivot.
Description
Technical Field
The utility model belongs to the technical field of the motor, a motor device is related to, especially, relate to an electric motor rotor device and dust catcher.
Background
The rotor subassembly of dust catcher motor at present mainly comprises pivot, magnet steel, stabilizer ring three, and during the design of conventional motor company on the market, in order to make things convenient for the location during the equipment, with the pivot design for the location of stabilizer ring for the step axle.
In view of among the current rotor subassembly structure, the pivot needs to be designed for the step form, needs higher processing technology, and hardly guarantees the machining precision of step form pivot to lead to the precision of pivot to be difficult to improve, the price is also expensive simultaneously.
In view of the above, there is a need to design a new rotor structure of an electric machine so as to overcome at least some of the above-mentioned disadvantages of the existing rotor structures of electric machines.
SUMMERY OF THE UTILITY MODEL
The utility model provides an electric motor rotor device, motor device and dust catcher can promote the precision of pivot, reduces the price of pivot.
For solving the technical problem, according to the utility model discloses an aspect adopts following technical scheme:
an electric machine rotor arrangement, the electric machine rotor arrangement comprising: the device comprises a rotating shaft, magnetic steel, a first balance ring and a second balance ring;
in the area of the rotating shaft for mounting the first balance ring, the magnetic steel and the second balance ring, the radial sections at any position are the same; the first balance ring, the magnetic steel and the second balance ring are sequentially nested in the rotating shaft.
As an embodiment of the present invention, the rotating shaft includes a rotating shaft main body and two end portions, and the rotating shaft main body is a cylindrical structure; the two end parts are in a circular truncated cone structure.
As an embodiment of the present invention, the rotating shaft includes a first portion covered by the first balance ring, the magnetic steel and the second balance ring, and a second portion and a third portion located at two ends of the first portion and exposed outside;
the length of the second part is a first length L1, and the length of the third part is a second length L2; the ratio of the first length L1 to the second length L2 is between 1.6 and 2.6.
As an embodiment of the present invention, the length of the first portion is a third length L3, and the third length L3: the ratio of the first length L1 is between 0.6 and 1.6.
As an embodiment of the present invention, the rotating shaft is a cylindrical structure; and through holes with the same aperture are formed in the center positions of the first balance ring, the magnetic steel and the second balance ring.
As an embodiment of the present invention, the inner hole of the magnetic steel is in clearance fit with the rotating shaft.
As an embodiment of the present invention, the inner hole of the first balance ring is in interference fit with the rotating shaft.
As an embodiment of the present invention, the inner hole of the second balance ring is in interference fit with the rotating shaft.
As an embodiment of the present invention, a first end surface of the magnetic steel is disposed in close contact with an end surface of the first balance ring; the second end face of the magnetic steel is tightly attached to one end face of the second balance ring.
According to another aspect of the utility model, adopt following technical scheme: a motor device comprises the motor rotor device.
As an embodiment of the present invention, the motor device further includes: the stator comprises a shell, a fan cover, a fixed impeller and a stator core body; the shell and the fan cover are spliced to form an external structure of the motor; a space is formed in the external structure of the motor, and the motor rotor device, the movable impeller, the fixed impeller and the stator core body are arranged in the space;
the movable impeller is arranged in the fan cover and arranged on the motor rotor device; the fixed impeller and the stator core body are fixed on the shell, and the movable impeller and the fixed impeller are arranged oppositely.
According to the utility model discloses a still another aspect adopts following technical scheme: a dust collector comprises the motor device.
The beneficial effects of the utility model reside in that: the utility model provides an electric motor rotor device, motor device and dust catcher can promote the precision of pivot, reduces the price of pivot.
The utility model discloses an in the use scene, the optical axis is the same from a left side to the right side diameter, and processing is simple, does benefit to and promotes precision, reduce cost. During assembly, the magnetic steel can be assembled firstly, and then the two balance rings are pressed in simultaneously, so that the manufacturing time is saved.
Drawings
Fig. 1 is a schematic structural diagram of an electric motor rotor device according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an electric motor rotor device according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a motor device according to an embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
For further understanding of the present invention, preferred embodiments of the present invention will be described below with reference to examples, but it should be understood that these descriptions are only for the purpose of further illustrating the features and advantages of the present invention, and are not intended to limit the claims of the present invention.
The description in this section is for exemplary embodiments only and the invention is not limited to the described embodiments. The same or similar prior art means and some technical features of the embodiments are mutually replaced and are also within the scope of the description and the protection of the invention.
The term "connected" in the specification includes both direct connection and indirect connection.
The utility model discloses an electric motor rotor device, and figure 1 is a schematic structural diagram of the electric motor rotor device of the utility model; referring to fig. 1, the rotor apparatus of the motor includes: the balance device comprises a rotating shaft 6, magnetic steel 7, a first balance ring 8 and a second balance ring 9; in the region of the rotating shaft 6 for mounting the first balance ring 8, the magnetic steel 7 and the second balance ring 9, the radial cross section at any position is the same (the radial cross section at any position in the region can be circular); the first balance ring 8, the magnetic steel 7 and the second balance ring 9 are sequentially nested in the rotating shaft 6. The center positions of the first balance ring 8, the magnetic steel 7 and the second balance ring 9 are provided with through holes with the same aperture.
In an embodiment of the present invention, the rotating shaft 6 may be a cylindrical structure (e.g., the rotating shaft 6 may be a standard cylindrical structure). In another embodiment of the present invention, the rotating shaft 6 includes a main body and two end portions, the main body is a cylindrical structure, and the two end portions are circular truncated cone structures (the radial section of the circular truncated cone structure gradually increases from a position away from the main body to a position of the main body); the two ends are designed into circular truncated cone structures, so that the magnetic steel 7, the first balance ring 8 and the second balance ring 9 can be conveniently placed on the rotating shaft 6 along the circular truncated cone from the end part of the rotating shaft 6.
The inner hole of the magnetic steel 7 can be in clearance fit with the rotating shaft 6; the inner hole of the first balance ring 8 can be in interference fit with the rotating shaft 6, and the inner hole of the second balance ring 9 can be in interference fit with the rotating shaft 6. The first end face of the magnetic steel 7 can be closely attached to one end face of the first balance ring 8; the second end face of the magnetic steel 7 can be closely attached to one end face of the second balance ring 9.
In an embodiment of the present invention, the rotating shaft 6 includes a first portion 601 covered by the first balance ring 8, the magnetic steel 7 and the second balance ring 9, and a second portion 602 and a third portion 603 which are located at two ends of the first portion and exposed outside; the length of the second portion 602 is a first length L1, and the length of the third portion 603 is a second length L2; the ratio of the first length L1 to the second length L2 is between 1.6 and 2.6. In one embodiment, the length of the first portion 601 is a third length L3, and the third length L3: the ratio of the first length L1 is between 0.6 and 1.6. In one embodiment, the first portion 601 of the shaft 6 has a length of 25mm, the second portion 602 has a length of 23mm, and the third portion 603 has a length of 10mm.
The utility model discloses an in the use scene, with electric motor rotor's pivot design for the optical axis, the pivot is a pivot that does not have the change from end to end diameter promptly. The inner hole of the balance ring is in interference fit with the rotating shaft by pressing the first balance ring in for positioning. At the moment, a servo press with higher precision or a positioning tool with high precision is required to press the first balance ring. And then the magnetic steel is positioned and installed by taking the position of the first balance ring, an inner hole of the magnetic steel is in clearance fit with the rotating shaft, and the end surface of one side of the magnetic steel is tightly attached to the end surface of the first balance ring. And finally, the second balance ring is pressed in, and the inner hole of the second balance ring is in interference fit with the rotating shaft (the phenomenon that the magnetic steel is broken due to overlarge pressure when the second balance ring is pressed in is prevented). Meanwhile, the second balance ring is not contacted with the other end face of the magnetic steel when being pressed in, and a gap is reserved between the second balance ring and the magnetic steel to prevent the magnetic steel from being damaged when the second balance ring is pressed in.
In a use scene of the utility model, the diameters of the optical axes are the same from left to right, the processing is simple, the precision is favorably improved, and the cost is reduced; during assembly, the magnetic steel can be assembled firstly, and then the two balance rings are pressed in simultaneously, so that the manufacturing time is saved.
In addition, at least one group of marks can be arranged on the rotating shaft 6, and each group of marks mark the positions of the first balance ring 8, the magnetic steel 7 and the second balance ring 9 in products with different models; is convenient to be checked during processing. Each group of marks can be designed as a detachable part, for example, each group of marks is realized by a sleeve; during processing, the sleeve can be embedded on the left side (or the right side) of the rotating shaft 6, and the right end (or the left end) of the sleeve marks the assembly position. The magnetic steel is set to the marking position through the processing equipment, and then the sleeve can be taken out (of course, the mark can also be fixed on the rotating shaft).
In one embodiment, the density of each part of the rotating shaft 6 is the same; in another embodiment, the middle region of the rotating shaft 6 has a higher density than the two end (or one end) regions (or the lower part of the rotating shaft 6 has a higher density than the upper part), and can be formed by arranging a material with a higher density, or can be formed by arranging hollow or through holes at the two ends (the material can be saved).
The utility model discloses still disclose a motor device, motor device includes foretell electric motor rotor device. In an embodiment of the present invention, the motor apparatus further includes: the fan comprises a shell, a fan cover, a fixed impeller and a stator core body; the shell and the fan cover are spliced to form an external structure of the motor; a space is formed in the outer structure of the motor, and the motor rotor device, the movable impeller, the fixed impeller and the stator core body are arranged in the space. The movable impeller is arranged in the fan cover and arranged on the motor rotor device; the fixed impeller and the stator core are fixed on the shell, and the movable impeller and the fixed impeller are arranged oppositely.
Fig. 3 is a schematic structural diagram of a motor device according to an embodiment of the present invention; referring to fig. 3, the motor apparatus includes: the motor comprises a shell, a motor rotor device, a movable impeller 4, a fixed impeller 5 and a stator core body 10; the motor rotor device comprises a rotating shaft 6, a first balance ring 8, magnetic steel 7 and a second balance ring 9; the motor rotor device, the moving impeller 4, the fixed impeller 5 and the stator core 10 are arranged in the housing. The composition of the rotor device of the electric machine can refer to the description of the rotor device of the electric machine above.
In an embodiment of the present invention, the housing includes a housing body 1, a fan housing 2, and a rear cover 3, and the housing body 1, the fan housing 2, and the rear cover 3 are spliced to form an external structure of the motor apparatus; a space is formed in the outer structure of the motor device, and the rotating shaft 6, the movable impeller 4, the fixed impeller 5 and the stator core 10 are arranged in the space; the movable impeller 4 is disposed in the fan housing 2. The movable impeller 4 is fixedly arranged at one end of the rotating shaft 6; a transition piece 16 can be arranged between the movable impeller 4 and the rotating shaft 6; the transition piece 16 is in interference fit with the rotating shaft 6 and is connected to the movable impeller 4. The fixed impeller 5 and the stator core 10 are fixed to the housing, and the movable impeller 4 is arranged opposite to the fixed impeller 5; the stator core 10 is a stator core.
In an embodiment of the present invention, the two regions of the rotating shaft 6 are respectively provided with a first bearing 11 and a second bearing 12; and a first bearing chamber and a second bearing chamber are arranged in the shell, and the first bearing 11 and the second bearing 12 are respectively arranged in the first bearing chamber and the second bearing chamber.
One end of the rotating shaft 6 is provided with a flange 14, and the flange 14 is used for fixing the second bearing 12. The motor arrangement may further comprise a control circuit 13, the control circuit 13 being arranged within the housing. And the control circuit 13 is connected with the plug-in unit on the stator assembly, and then is conducted with a motor copper wire to provide current for the motor stator. In addition, a fan cover sealing ring 15 is arranged in the fan cover 2.
The utility model discloses further disclose a dust catcher, the dust catcher includes foretell motor device. The motor device provides a power source for the dust collector.
To sum up, the utility model provides an electric motor rotor device, motor device and dust catcher can promote the precision of pivot, reduces the price of pivot.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The description and applications of the present invention are illustrative and are not intended to limit the scope of the invention to the embodiments described above. Effects or advantages referred to in the embodiments may not be reflected in the embodiments due to interference of various factors, and the description of the effects or advantages is not intended to limit the embodiments. Variations and modifications of the embodiments disclosed herein are possible, and alternative and equivalent various components of the embodiments will be apparent to those skilled in the art. It will be clear to those skilled in the art that the present invention may be embodied in other forms, structures, arrangements, proportions, and with other components, materials, and parts, without departing from the spirit or essential characteristics thereof. Other variations and modifications of the embodiments disclosed herein may be made without departing from the scope and spirit of the present invention.
Claims (5)
1. An electric motor rotor apparatus, characterized in that the electric motor rotor apparatus comprises: the device comprises a rotating shaft, magnetic steel, a first balance ring and a second balance ring;
in the area of the rotating shaft for mounting the first balance ring, the magnetic steel and the second balance ring, the radial sections at any position are the same; the first balance ring, the magnetic steel and the second balance ring are sequentially nested on the rotating shaft;
the rotating shaft comprises a first part covered by the first balance ring, the magnetic steel and the second balance ring, and a second part and a third part which are positioned at two ends of the first part and exposed outside;
the length of the second part is a first length L1, and the length of the third part is a second length L2; the ratio of the first length L1 to the second length L2 is between 1.6 and 2.6;
the length of the first portion is a third length L3, and the third length L3: the ratio of the first length L1 is between 0.6 and 1.6;
the rotating shaft is of a cylindrical structure; the center positions of the first balance ring, the magnetic steel and the second balance ring are provided with through holes with the same aperture;
the inner hole of the magnetic steel is in clearance fit with the rotating shaft, the inner hole of the first balance ring is in interference fit with the rotating shaft, and the inner hole of the second balance ring is in interference fit with the rotating shaft;
the first end face of the magnetic steel is closely attached to one end face of the first balance ring; the second end face of the magnetic steel is tightly attached to one end face of the second balance ring.
2. The electric machine rotor apparatus of claim 1, wherein:
the rotating shaft comprises a rotating shaft main body and two end parts, and the rotating shaft main body is of a cylindrical structure; the two end parts are in a circular truncated cone structure.
3. An electric machine device characterized in that: the motor apparatus includes the motor rotor apparatus according to any one of claims 1 to 2.
4. The electric machine arrangement according to claim 3, characterized in that:
the motor apparatus further includes: the fan comprises a shell, a fan cover, a fixed impeller and a stator core body; the shell and the fan cover are spliced to form an external structure of the motor; a space is formed in the external structure of the motor, and the motor rotor device, the movable impeller, the fixed impeller and the stator core body are arranged in the space;
the movable impeller is arranged in the fan cover and arranged on the motor rotor device; the fixed impeller and the stator core are fixed on the shell, and the movable impeller and the fixed impeller are arranged oppositely.
5. A kind of dust collector, characterized by: the vacuum cleaner comprising a motor arrangement as claimed in any one of claims 3 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220688318.3U CN218850477U (en) | 2022-03-28 | 2022-03-28 | Motor rotor device, motor device and dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220688318.3U CN218850477U (en) | 2022-03-28 | 2022-03-28 | Motor rotor device, motor device and dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218850477U true CN218850477U (en) | 2023-04-11 |
Family
ID=87304604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220688318.3U Active CN218850477U (en) | 2022-03-28 | 2022-03-28 | Motor rotor device, motor device and dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218850477U (en) |
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2022
- 2022-03-28 CN CN202220688318.3U patent/CN218850477U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230608 Address after: 321017 Zhejiang province Jinhua Jinpan road 420. Patentee after: Jinhua Hongkai Intelligent Manufacturing Co.,Ltd. Address before: 215159 Room 201, building 2, No. 101, Fuli village, Guangfu Town, Wuzhong District, Suzhou City, Jiangsu Province Patentee before: Decheng Yongdao motor (Suzhou) Co.,Ltd. |