CN214674572U - Energy-saving DC permanent magnet motor - Google Patents
Energy-saving DC permanent magnet motor Download PDFInfo
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- CN214674572U CN214674572U CN202121010696.8U CN202121010696U CN214674572U CN 214674572 U CN214674572 U CN 214674572U CN 202121010696 U CN202121010696 U CN 202121010696U CN 214674572 U CN214674572 U CN 214674572U
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Abstract
The application provides an energy-saving direct-current permanent magnet motor, which comprises a stator assembly, a rotor assembly and a stator switch module; the rotor assembly comprises a first rotating shaft and two rotor permanent magnets symmetrically arranged about the first rotating shaft; the stator component is arranged outside the rotor component and comprises a stator shell and a plurality of stator permanent magnets arranged on the stator shell; the stator permanent magnet and the rotor permanent magnet interact to drive the rotor component to rotate directionally; the rotor assembly has a stagnation point; the stator switch module is arranged on the stator shell and comprises a plurality of adjusting permanent magnets and a plurality of main coils; the main coil is powered by the switching circuit; the switching circuit is configured to momentarily energize the primary winding when the rotor assembly reaches the stagnation point, such that the total magnetic flux of the stator switch modules ramps up to drive the rotor assembly to continue rotating across the stagnation point. When the energy-saving direct-current permanent magnet motor is used, the power consumption is greatly reduced, and the use cost is reduced.
Description
Technical Field
The application relates to the technical field of direct-current permanent magnet motors, in particular to an energy-saving direct-current permanent magnet motor.
Background
A permanent magnet dc motor is a dc motor that uses permanent magnets to create a magnetic field. The permanent magnet direct current motor is widely applied to various portable electronic devices or appliances, such as a recorder, a VCD (video recorder), a phonograph, an electric massager and various toys, also widely applied to industries such as automobiles, motorcycles, hand dryers, electric bicycles, storage battery cars, ships, aviation, machinery and the like, and also widely applied to some high-precision products, such as video recorders, copiers, cameras, mobile phones, precision machine tools, bank note counting machines, bank note bundling machines and the like.
The traditional permanent magnet direct current motor comprises a rotor and a stator, and is divided into two cases, wherein in one case, a large number of electromagnetic coils are arranged on the rotor, and a permanent magnet is arranged on the stator; another case is to mount a permanent magnet on the rotor and a large number of electromagnetic coils on the stator. When the electromagnetic induction heating device works, a large number of electromagnetic coils need to be electrified, so that the problem of high power consumption exists, and the use cost is high; in addition, a large amount of electromagnetic coils can generate a large amount of heat in the working process, so that the motor is easy to break down, the maintenance cost is high, and the service life of the motor is shortened.
Disclosure of Invention
The present application aims to solve the above problems and provide an energy-saving dc permanent magnet motor.
The application provides an energy-saving direct-current permanent magnet motor, which comprises a stator assembly, a rotor assembly and a stator switch module;
the rotor assembly comprises a first rotating shaft and two rotor permanent magnets symmetrically arranged about the first rotating shaft;
the stator assembly is arranged outside the rotor assembly and comprises a stator shell and a plurality of stator permanent magnets arranged on the stator shell; the stator permanent magnet and the rotor permanent magnet interact to drive the rotor component to rotate directionally; the rotor assembly having a stagnation point;
the stator switch module is arranged on the stator shell and comprises a plurality of adjusting permanent magnets and a plurality of main coils arranged corresponding to the adjusting permanent magnets;
the main coil is powered by a switching circuit; the switching circuit is configured to supply power to the main coil when the rotor assembly reaches a stagnation point, so that the total magnetic quantity of the stator switch module is suddenly changed to drive the rotor assembly to rotate continuously across the stagnation point.
According to the technical scheme provided by some embodiments of the application, the adjusting permanent magnet comprises two tile-shaped magnets with opposite polarities; the tile-shaped magnet is fixed on the second rotating shaft; when the switching circuit supplies power to the main coil instantaneously, the tile-shaped magnet rotates along with the second rotating shaft.
According to the technical scheme provided by some embodiments of the present application, the stator switch module further includes auxiliary coils symmetrically disposed at both sides of the regulating permanent magnet; the auxiliary coil is powered by the switching circuit; the switching circuit is configured to energize the auxiliary coil after the rotor assembly crosses the stagnation point to adjust the position of the conditioning permanent magnet to reset the conditioning permanent magnet.
According to the technical scheme provided by some embodiments of the application, the stator shell is in a hollow cylinder shape, and the unfolded shape of the stator shell is rectangular; the plurality of stator permanent magnets are distributed in a W shape on the unfolded stator shell.
According to the technical scheme provided by some embodiments of the application, the tile-shaped magnet is adhered to the outer wall of the second rotating shaft.
According to aspects provided by certain embodiments of the present application, the stator switch module further includes an arc-shaped housing; the main coil and the auxiliary coil are both mounted on the inner wall of the housing.
Compared with the prior art, the beneficial effect of this application: according to the energy-saving direct-current permanent magnet motor, the rotor assembly and the stator assembly are not provided with electromagnetic coils, when the energy-saving direct-current permanent magnet motor is used, only a small number of electromagnetic coils (including the main coil and the auxiliary coil) on the stator switch module are needed to be electrified, so that the power consumption is greatly reduced, and the use cost is reduced; because only a small amount of low-power electromagnetic coils (including the main coil and the auxiliary coil) are arranged on the stator switch module, the whole machine only generates low heat in the working process, and the motor is not easy to break down, so that the failure rate of the motor in the working process is reduced, the service life of the motor is prolonged, and the maintenance cost is reduced.
Drawings
Fig. 1 is a schematic structural diagram of an energy-saving dc permanent magnet motor according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a stator assembly of an energy-saving dc permanent magnet motor according to an embodiment of the present application;
fig. 3 is a schematic view of an unfolded structure of a stator assembly of an energy-saving dc permanent magnet motor according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a rotor assembly of an energy-saving dc permanent magnet motor according to an embodiment of the present disclosure;
fig. 5 is an expanded structural schematic diagram of a rotor assembly of an energy-saving dc permanent magnet motor according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a stator switch module of an energy-saving dc permanent magnet motor according to an embodiment of the present application.
The text labels in the figures are represented as:
10. a stator assembly; 11. a stator housing; 12. a stator permanent magnet; 20. a rotor assembly; 21. a rotor support; 22. a first rotating shaft; 23. a rotor permanent magnet; 30. a stator switch module; 31. a housing; 32. a second rotating shaft; 33. adjusting the permanent magnet; 34. a main coil; 35. an auxiliary coil.
Detailed Description
The following detailed description of the present application is given for the purpose of enabling those skilled in the art to better understand the technical solutions of the present application, and the description in this section is only exemplary and explanatory, and should not be taken as limiting the scope of the present application in any way.
Referring to fig. 1, the present embodiment provides an energy-saving dc permanent magnet motor, which includes a stator assembly 10, a rotor assembly 20, and a stator switch module 30.
Referring to fig. 4 and 5, the rotor assembly 20 includes a rotor frame 21, a first rotating shaft 22 disposed at a central position inside the rotor frame 21; the outer contour of the rotor support 21 is cylindrical; the rotor bracket 21 is provided with two rotor permanent magnets 23; the length direction of the rotor permanent magnet 23 is parallel to the length direction of the rotor holder 21; the two rotor permanent magnets 23 are symmetrically distributed about the first rotation axis 22.
Referring to fig. 2 and 3, the stator assembly 10, disposed outside the rotor assembly 20, includes a stator housing 11 and a plurality of stator permanent magnets 12 disposed on the stator housing 11, that is, the stator permanent magnets 12 are mounted on the stator housing 11 and embedded inside the stator housing 11; the magnetic poles of the stator permanent magnet 12 and the rotor permanent magnet 23 are opposite in polarity; the stator permanent magnet 12 and the rotor permanent magnet 23 interact to drive the rotor assembly 20 to rotate directionally in the stator housing 11; the rotor assembly 20 has a stagnation point. The stagnation point refers to: in the absence of any external driving force, the interaction between the stator permanent magnets 12 and the rotor permanent magnets 23 allows the rotor assembly 20 to rotate directionally relative to the stator assembly 10, and there is a stagnation point on the rotation circumference of the rotor assembly 20, and when the rotor assembly 20 rotates to the stagnation point, the rotation is stopped, i.e., the rotation speed is zero.
Further, the stator housing 11 is in a hollow cylindrical shape, and the unfolded shape is rectangular; the plurality of stator permanent magnets 12 are distributed in a W shape on the unfolded stator housing 11, as shown in fig. 3.
The stator switch module 30 is installed outside the stator housing 11, as shown in fig. 6, the stator switch module 30 includes a housing 31, a second rotating shaft 32, a plurality of adjusting permanent magnets 33, and a plurality of main coils 34; the housing 31 is arc-shaped; the central axis of the second rotating shaft 32 coincides with the central axis of the housing 31; a plurality of the adjusting permanent magnets 33 are fixed on the second rotating shaft 32; a plurality of main coils 34 are installed on the top of the inner wall of the housing 31 and are located right above the adjusting permanent magnets 33, and each adjusting permanent magnet 33 corresponds to one main coil 34. In the present embodiment, three adjusting permanent magnets 33 and three main coils 34 are provided; the three adjusting permanent magnets 33 are sequentially arranged along the length direction of the second rotating shaft 32; the three main coils 34 are sequentially arranged along the length direction of the housing 31.
The primary coil 34 is powered by a switching circuit; the switching circuit is configured to energize the primary winding 34 when the rotor assembly 20 reaches a stagnation point, such that the total flux of the stator switch modules 30 ramps up to drive the rotor assembly 20 to continue rotating across the stagnation point.
Further, each of the adjustment permanent magnets 33 includes two tile-shaped magnets with opposite polarities; the cross section of each tile-shaped magnet is semicircular; the two tile-shaped magnets belonging to the same adjusting permanent magnet 33 are buckled to form a hollow cylinder and are annularly arranged on the surface of the second rotating shaft 32 in a sticking mode; when the switching circuit momentarily supplies power to the main coil 34, a magnetic force is generated, so that the tile-shaped magnet rotates along with the second rotating shaft 32, and the total magnetic quantity of the stator switch module 30 changes abruptly, so as to drive the rotor assembly 20 to rotate continuously across the stagnation point.
When the rotor assembly 20 rotates for one circle in the stator housing 11, a stagnation point occurs, and the stator switch module 30 functions such that, when the rotor assembly 20 reaches the stagnation point, the switching circuit instantly supplies power to the main coil 34 to generate a magnetic force, so as to drive the adjusting permanent magnet 33 to rotate along with the second rotating shaft 32, so that the adjusting permanent magnet 33 generates a magnetic force to act on the rotor assembly 20, and the rotor assembly 20 is driven to cross the stagnation point to perform the next rotation.
Further, the stator switch module 30 further includes auxiliary coils 35 symmetrically disposed at both sides of the regulating permanent magnet 33; the auxiliary coil 35 is mounted on the inner wall of the housing 31; the auxiliary coil 35 is powered by the switching circuit; the switching circuit is configured to energize the auxiliary coil 35 after the rotor assembly 20 crosses the stagnation point to adjust the position of the conditioning permanent magnet 33 to reset the conditioning permanent magnet 33.
After the rotor assembly 20 crosses the stagnation point and continues to rotate for the next circle, the two tile-shaped magnets of the adjusting permanent magnet 33 may deviate from the initial position, which may cause that the rotor assembly 20 cannot accurately cross the stagnation point when reaching the stagnation point again; at this time, the switching circuit supplies power to the auxiliary coil 34, so that the adjusting permanent magnet 33 rotates along with the second rotating shaft 32, and the adjusting permanent magnet 32 returns to an initial position, in this embodiment, the initial position of the adjusting permanent magnet 32 is that a joint of the two tile-shaped magnets located above is located right below the main coil.
According to the energy-saving direct-current permanent magnet motor, the rotor assembly and the stator assembly are not provided with the electromagnetic coils, when the energy-saving direct-current permanent magnet motor is used, only a small number of electromagnetic coils (including the main coil and the auxiliary coil) on the stator switch module need to be electrified, power consumption is greatly reduced (the power consumption is reduced by at least 60% through testing), and therefore the use cost is reduced; according to the energy-saving direct-current permanent magnet motor, only a small number of low-power electromagnetic coils (including the main coil and the auxiliary coil) are arranged on the stator switch module, and the whole motor only generates low heat in the working process and is not easy to cause the motor to break down, so that the failure rate of the motor in the working process is reduced, and the service life of the motor is prolonged; in addition, the part of the motor which is most prone to faults is the part provided with the electromagnetic coil, and the electromagnetic coil is only arranged on the stator switch module, so that even if faults occur, the maintenance cost is greatly reduced compared with the stator or rotor faults in the prior art.
The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are no specific structures which are objectively limitless due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes can be made without departing from the principle of the present invention, and the technical features mentioned above can be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention in other instances, which may or may not be practiced, are intended to be within the scope of the present application.
Claims (6)
1. An energy-saving direct current permanent magnet motor is characterized by comprising a stator assembly (10), a rotor assembly (20) and a stator switch module (30);
the rotor assembly (20) comprises a first rotating shaft (22) and two rotor permanent magnets (23) symmetrically arranged about the first rotating shaft (22);
the stator assembly (10) is arranged outside the rotor assembly (20) and comprises a stator housing (11) and a plurality of stator permanent magnets (12) arranged on the stator housing (11); the stator permanent magnet (12) and the rotor permanent magnet (23) interact to drive the rotor assembly (20) to rotate directionally; the rotor assembly (20) having a stagnation point;
the stator switch module (30) is arranged on the stator shell (11) and comprises a plurality of adjusting permanent magnets (33) and a plurality of main coils (34) arranged corresponding to the adjusting permanent magnets (33);
the main coil (34) is powered by a switching circuit; the switching circuit is configured to energize the primary winding (34) when the rotor assembly (20) reaches a stagnation point such that the total flux of the stator switch modules (30) jumps to drive the rotor assembly (20) to continue rotating across the stagnation point.
2. Energy-saving direct current permanent magnet motor according to claim 1, characterized in that the regulating permanent magnet (33) comprises two tile-shaped magnets of opposite polarity; the tile-shaped magnet is fixed on the second rotating shaft (32); when the switching circuit supplies power to the main coil (34) instantaneously, the tile-shaped magnet rotates along with the second rotating shaft (32).
3. The energy-efficient permanent magnet direct current motor according to claim 1, characterized in that the stator switch module (30) further comprises auxiliary coils (35) symmetrically arranged on both sides of the regulating permanent magnet (33); the auxiliary coil (35) is powered by the switching circuit; the switching circuit is configured to energize the auxiliary coil (35) after the rotor assembly (20) crosses the stagnation point to adjust the position of the adjustment permanent magnet (33) to reset the adjustment permanent magnet (33).
4. The energy-saving direct current permanent magnet motor according to claim 1, wherein the stator housing (11) is in the shape of a hollow cylinder, and the unfolded shape is rectangular; the plurality of stator permanent magnets (12) are distributed in a W shape on the unfolded stator housing (11).
5. The energy-saving dc permanent magnet motor according to claim 2, wherein the tile-shaped magnet is adhered to the outer wall of the second rotating shaft (32).
6. The energy efficient permanent magnet direct current motor according to claim 3, characterized in that the stator switch module (30) further comprises an arc shaped housing (31); the main coil (34) and the auxiliary coil (35) are both mounted on the inner wall of the housing (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121010696.8U CN214674572U (en) | 2021-05-12 | 2021-05-12 | Energy-saving DC permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121010696.8U CN214674572U (en) | 2021-05-12 | 2021-05-12 | Energy-saving DC permanent magnet motor |
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| Publication Number | Publication Date |
|---|---|
| CN214674572U true CN214674572U (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121010696.8U Active CN214674572U (en) | 2021-05-12 | 2021-05-12 | Energy-saving DC permanent magnet motor |
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| Country | Link |
|---|---|
| CN (1) | CN214674572U (en) |
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2021
- 2021-05-12 CN CN202121010696.8U patent/CN214674572U/en active Active
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Effective date of registration: 20231027 Address after: Room 301, Building A, Building D1, West District, No.1 Xuefu West Road, Xiqing Xuefu Industrial Zone, Xiqing District, Tianjin, 300300 Patentee after: Tianjin Qineng Technology Development Co.,Ltd. Address before: 300309 room 346-1, building of Tianjin Dongli Lake Tourism Development Corporation, Dongli Lake Resort area, Dongli District, Tianjin Patentee before: Tianjin Haka Technology Development Co.,Ltd. |