CN216851445U - Co-rotor dual-drive motor and stator module thereof - Google Patents
Co-rotor dual-drive motor and stator module thereof Download PDFInfo
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- CN216851445U CN216851445U CN202220203768.9U CN202220203768U CN216851445U CN 216851445 U CN216851445 U CN 216851445U CN 202220203768 U CN202220203768 U CN 202220203768U CN 216851445 U CN216851445 U CN 216851445U
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Abstract
The embodiment of the utility model provides a be trochanter dual drive motor altogether and stator module thereof, stator module includes stator core and two sets of three-phase winding modules, two sets of three-phase winding modules use a radial axis of stator core to wind on the stator core as symmetry axis symmetry, stator core's medial surface is provided with 12n location teeth, every set of three-phase winding module all includes 6n coils, 6n coils divide into 3 groups and are connected to the coil assembly of same three-phase drive power supply's different looks respectively, every group coil assembly all includes n to coil pair, be connected to same three-phase drive power supply's same looks after two coils of same coil pair establish ties each other, two coils of every coil pair of same three-phase winding module are winded respectively on two adjacent location teeth of stator core and the opposite direction of the coiling of two coils of every coil pair, n is for being more than or equal to 1 positive integer. The embodiment can effectively improve the output power of the motor, and the safety is higher.
Description
Technical Field
The embodiment of the utility model provides a relate to motor technical field, especially relate to a altogether rotor dual drive motor and stator module thereof.
Background
At present, a motor is usually adopted as power in the field of aviation, and in order to improve the safety of the motor, when a three-phase winding module of the motor fails, the rotation of a rotor can still be effectively driven, so that the motor can continuously work.
The existing stator module of the co-rotor dual-drive motor mainly comprises a stator core and two sets of three-phase winding modules wound on the stator core, wherein each coil of the two sets of three-phase winding modules is concentrically staggered and arranged on a positioning tooth of the stator core at intervals in a staggered manner by a central angle of 120 degrees. However, utility model people discover when specifically implementing, when adopting above-mentioned mode to arrange, because each coil of two sets of three-phase winding modules is adjacent in proper order at an interval, when the coil of one of them set of three-phase winding module because high temperature damages, high temperature very easily reaches another set of three-phase winding module and causes it to damage also, and the security is very poor.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a technical problem who solves lies in, provides a stator module of rotor dual drive motor altogether, can effectively improve the output of motor to the security is higher.
The embodiment of the utility model provides a technical problem who further solves provides a total rotor dual drive motor, can effectively improve output to the security is higher.
In order to solve the technical problem, an embodiment of the utility model provides a following technical scheme: a stator module of a co-rotor dual-drive motor comprises a stator core and two sets of three-phase winding modules, wherein the stator core is coaxially arranged with a rotor assembly of the co-rotor dual-drive motor and is of a circular ring shape in cross section, the two sets of three-phase winding modules are wound on the stator core and are respectively connected to two external three-phase drive power supplies, the two sets of three-phase winding modules are symmetrically wound on the stator core by taking a radial central axis of the stator core as a symmetrical axis, 12n positioning teeth are uniformly and alternately arranged on the inner side surface of the stator core around the axial central axis, each set of three-phase winding module comprises 6n coils which are wound on each positioning tooth in a one-to-one correspondence manner and are connected through a common contact, 6n coils are divided into 3 coil groups which are respectively connected to the same different phases of the three-phase drive power supplies, and each coil group comprises n pairs of coils, two coils of the same coil pair are connected in series and then connected to the same phase of the same three-phase driving power supply, two coils of each coil pair of the same three-phase winding module are wound on two adjacent positioning teeth of the stator core respectively, the winding directions of the two coils of each coil pair are opposite, and n is a positive integer greater than or equal to 1.
Further, when n is greater than 1, each pair of coils in any two groups of coil groups of each set of three-phase winding module is arranged between two pairs of coils in the other group of coil groups.
Furthermore, the stator core is formed by splicing two identical semicircular ring cores with semicircular cross sections, 6n positioning teeth are arranged on each semicircular ring core, and each semicircular ring core is respectively wound with one set of the three-phase winding module.
On the other hand, in order to solve the above-mentioned further technical problem, the embodiment of the utility model provides a following technical scheme: a co-rotor dual-drive motor comprises a shell, a rotor assembly assembled at the axis in the shell and a stator module assembled in the shell and surrounding the rotor assembly of the co-rotor dual-drive motor so as to drive the rotor assembly to rotate around the central axis of the stator module when the stator module is powered on, wherein the stator module is the stator module in any one of the above items.
Furthermore, the rotor assembly comprises a rotor core frame, a magnetic conductive iron ring embedded on the outer side of the rotor core frame, and permanent magnet modules uniformly fixed on the outer side surface of the magnetic conductive iron ring.
Furthermore, the permanent magnet module is composed of a plurality of permanent magnets which are arranged around the central axis of the rotor core frame and have arc-shaped cross sections, and the polarities of the permanent magnets are alternately distributed.
Further, the permanent magnet module is composed of 10 permanent magnets, and the central angle of the cross section of each permanent magnet is 360/10n degrees.
Furthermore, each permanent magnet is adhered to the outer side surface of the magnet guide ring.
Further, the rotor assembly further comprises a permanent magnet protective sleeve wrapped on the outer side of the permanent magnet module.
After the technical scheme is adopted, the embodiment of the utility model provides an at least, following beneficial effect has: the embodiment of the utility model provides a through with two sets of three-phase winding module with a radial axis of stator core as symmetry axis symmetry coiling on the stator core, when two sets of three-phase winding modules can normally work, two external three-phase drive power input three-phase sine wave current drive two three-phase winding modules work, the space rotating magnetic field that two three-phase winding modules produced superposes each other and forms synthetic magnetic field to make the rotor assembly rotatory; when one of the three-phase winding modules fails or does not work, the other three-phase winding module generates a space rotating electromagnetic field under the driving of an external three-phase driving power supply to enable the rotor assembly to rotate, and the two three-phase winding modules are symmetrically arranged at 180 degrees, so that the two three-phase winding modules cannot generate interference when in failure, and the safety is higher; in addition, two coils of each coil pair of the same three-phase winding module are respectively wound on two adjacent positioning teeth of the stator core, and the winding directions of the two coils of each coil pair are opposite, so that a space rotating magnetic field generated by the three-phase winding module is uniform, and a driving dead zone is avoided.
Drawings
Fig. 1 is a schematic cross-sectional view of an alternative embodiment of a stator module of a co-rotor dual drive motor according to the present invention.
Fig. 2 is an expanded schematic view of an alternative embodiment of a three-phase winding module of a stator module of a co-rotor dual-drive motor according to the present invention.
Fig. 3 is an expanded schematic view of a three-phase winding module according to yet another alternative embodiment of the stator module of the co-rotor dual-drive motor of the present invention.
Fig. 4 is a schematic diagram of a driving signal of an optional embodiment of the stator module of the co-rotor dual-drive motor of the present invention.
Fig. 5 is a schematic cross-sectional view of an alternative embodiment of the co-rotor dual drive motor of the present invention.
Fig. 6 is a schematic cross-sectional view of a rotor assembly of an alternative embodiment of the co-rotor dual drive motor of the present invention.
Figure 7 is a schematic cross-sectional view of a single permanent magnet of an alternative embodiment of the co-rotor dual drive motor of the present invention.
Detailed Description
The present application will now be described in further detail with reference to the accompanying drawings and specific examples. It is to be understood that the following illustrative embodiments and description are only intended to illustrate the present invention, and are not intended to limit the present invention, and features in the embodiments and examples may be combined with each other in the present application without conflict.
As shown in fig. 1-2, an optional embodiment of the present invention provides a stator module 1 of a co-rotor dual-drive motor, where the stator module 1 includes a stator core 10 disposed coaxially with a rotor assembly 3 of the co-rotor dual-drive motor and having a circular cross section, and two sets of three-phase winding modules 12 wound on the stator core 10 and connected to two external three-phase driving power sources respectively, the two sets of three-phase winding modules 12 are symmetrically wound on the stator core 10 by using a radial central axis L of the stator core 10 as a symmetry axis, 12n positioning teeth 101 are uniformly arranged around the axial central axis of the stator core 10 at intervals, each set of the three-phase winding modules 12 includes 6n coils 121 wound on each positioning tooth 101 in a one-to-one correspondence manner and connected through a common contact, and the 6n coils are divided into 3 groups and connected to the same coil group 123 of different phases of the three-phase driving power sources respectively, each group of coil groups 123 includes n pairs of coil pairs 125, two coils 121 of the same coil pair 125 are connected in series and then connected to the same phase of the same three-phase driving power supply, two coils 121 of each coil pair 125 of the same three-phase winding module 12 are respectively wound on two adjacent positioning teeth 101 of the stator core 10, the winding directions of the two coils 121 of each coil pair 125 are opposite, and n is a positive integer greater than or equal to 1.
The embodiment of the utility model provides a through with two sets of three-phase winding module 12 use a radial axis L of stator core 10 to be symmetry coiling on stator core 10, when two sets of three-phase winding module 12 homoenergetic normally worked, two external three-phase drive power input three-phase sine wave current drive two three-phase winding module 12 work, the space rotating magnetic field that two three-phase winding module 12 produced superposes each other and forms synthetic magnetic field to make rotor assembly 3 rotatory; when one of the three-phase winding modules 12 fails or does not work, the other three-phase winding module 12 generates a space rotating electromagnetic field under the driving of an external three-phase driving power supply to enable the rotor assembly 3 to rotate, and because the two sets of three-phase winding modules 12 are symmetrically arranged at 180 degrees, the two three-phase winding modules do not generate interference when in failure, and the safety is higher; in addition, the two coils 121 of each coil pair 125 of the same three-phase winding module 12 are respectively wound on the two adjacent positioning teeth 101 of the stator core 10, and the winding directions of the two coils 121 of each coil pair 125 are opposite, so that the spatial rotating magnetic field generated by the three-phase winding module 12 is uniform, and the formation of a driving dead zone is avoided.
In the embodiment shown in fig. 2, the coils 121 of the first three-phase winding module 12 from left to right are sequentially an a1+ coil, an a 1-coil, a B1-coil, a B1+ coil, a C1+ coil, and a C1-coil (corresponding to the coils sequentially from the upper left of the radial central axis L in fig. 1 in the clockwise direction); the coils 121 of the second three-phase winding module 12 are sequentially an a 2-coil, an a2+ coil, a B2+ coil, a B2-coil, a C2-coil, and a C2+ coil (corresponding to the coils sequentially in the clockwise direction from the lower part of the right side of the radial central axis L in fig. 1); the A1, the B1 and the C1 are connected to A, B and C three phases of one external three-phase driving power supply; the A2, B2 and C2 are connected to A, B and C three phases of another external three-phase driving power supply; o1 and O2 respectively represent the common junctions of the two three-phase winding modules 12.
In an alternative embodiment of the present invention, as shown in fig. 3, when n is greater than 1, each pair 125 of the two coil sets 123 of each set of the three-phase winding module 12 is disposed between two pairs 125 of the other coil set 123. In this embodiment, when n is greater than 1, that is, when each set of coil groups 123 of each set of the three-phase winding module 12 has two coil pairs 125, by disposing each pair of coil pairs 125 in any two sets of coil groups 123 between two pairs of coil pairs 125 in the other set of coil groups 123, a driving dead zone is avoided and the formed electromagnetic field is uniform.
In practical implementation, as in the embodiment of fig. 4, the driving signals input by the two external three-phase driving power supplies are sinusoidal waveforms, the phase difference between the three-phase waveforms is 120 °, the electrical angle of the a phase is equal to 0 °, the electrical angle of the B phase is equal to 120 °, the electrical angle of the C phase is equal to 240 °, and the driving signals input by the two external three-phase driving power supplies overlap with each other, that is, a1 ═ a2, B1 ═ B2, and C1 ═ C2; x, Y and Z in FIG. 4 represent sinusoidal signal curves for A1/A2, B1/B2, and C1/C2, respectively.
In an optional embodiment of the present invention, as shown in fig. 1, the stator core 10 is formed by splicing two semicircular iron cores 10a having the same cross section and a semicircular ring, each semicircular iron core 10a is provided with 6n positioning teeth 101, and each semicircular iron core 10a is wound with one set of the three-phase winding module 12. In this embodiment, the stator core 10 is formed by splicing two semicircular iron cores 10a, and each semicircular iron core 10a is correspondingly wound with one set of the three-phase winding module 12, which is beneficial to improving the assembly efficiency of the stator module 1.
On the other hand, as shown in fig. 5, the embodiment of the present invention provides a co-rotor dual-drive motor, which includes a housing 5, a rotor assembly 3 assembled at the axis of the housing 5, and a stator module 1 assembled in the housing 5 and surrounding the rotor assembly 3 to drive the rotor assembly 3 to rotate around its central axis when being powered on, wherein the stator module 1 is the stator module according to the above embodiment. In this embodiment, the co-rotor dual-drive motor adopts the stator module 1 as described above, which can effectively improve the output power of the motor and has higher safety.
In an alternative embodiment of the present invention, as shown in fig. 6, the rotor assembly 3 includes a rotor core frame 30, a magnetic conductive iron ring 32 embedded outside the rotor core frame 30, and permanent magnet modules 34 uniformly fixed on an outer side surface of the magnetic conductive iron ring 32. In this embodiment, the rotor assembly 3 is composed of the rotor core frame 30, the magnetic conductive iron ring 32 and the permanent magnet module 34, the structure is relatively simple, and the permanent magnet module 34 drives the rotor core frame 30 to rotate under the action of the electromagnetic field generated by the stator module 1.
In an optional embodiment of the present invention, as shown in fig. 6, the permanent magnet module 34 is composed of a plurality of permanent magnets 34a disposed around the central axis of the rotor core frame 30 and having a circular arc-shaped cross section, and the polarities of the permanent magnets 34a are alternately distributed. In this embodiment, the permanent magnet module 34 is composed of a plurality of permanent magnets 34a having circular-arc cross sections, and the permanent magnets 34a having circular-arc cross sections with alternately distributed polarities of the permanent magnets 34a can be effectively attached to the outer surface of the magnet guiding ring 32, and are spliced to form a circular ring completely surrounding the inner side of the stator module 1, thereby ensuring the interaction with the annular stator module 1.
In an alternative embodiment of the present invention, as shown in fig. 6 and 7, the permanent magnet module 34 is composed of 10 permanent magnets 34a, and the central angle α of the cross section of each permanent magnet 34a is 360/10n degrees. In the present embodiment, the permanent magnet modules 34 are formed by the above number, and correspondingly adopt the circular angle α as described above, when only one three-phase winding module 12 is used in the stator module 1, each three-phase winding module 12 generates a spatial rotating electromagnetic field driven by three-phase sine wave current, the direction of the quadrature axis of the spatial electromagnetic field of the motor is 180 °, and the range angle acted in the polarized magnetic field of the rotor assembly is 6n (360 °/10n), which is greater than 180 °, so that the electromagnetic torque generated by forming the composite magnetic field in the air gap between the stator module 1 and the rotor assembly 3 is greater than the reluctance torque, thereby forcing the rotor assembly 3 to rotate.
In an alternative embodiment of the present invention, each permanent magnet 34a is bonded to the outer side surface of the magnet guiding ring 32. In this embodiment, each permanent magnet 34a is fixed to the outer side surface of the magnet guide ring 32 by bonding, which is very convenient to assemble.
In an alternative embodiment of the present invention, as shown in fig. 6, the rotor assembly 3 further includes a permanent magnet protective sleeve 36 wrapped outside the permanent magnet module 34. In this embodiment, still through at the outside parcel permanent magnet protective sheath 36 of permanent magnet module 34, can effectively protect inside permanent magnet module 34.
The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention, and these forms are within the scope of the present invention.
Claims (9)
1. A stator module of a co-rotor dual-drive motor comprises a stator core and two sets of three-phase winding modules, wherein the stator core is coaxially arranged with a rotor assembly of the co-rotor dual-drive motor and is of a circular ring shape in cross section, the two sets of three-phase winding modules are wound on a stator core and are respectively connected to two external three-phase drive power supplies, the stator module is characterized in that the two sets of three-phase winding modules are symmetrically wound on the stator core by taking a radial central axis of the stator core as a symmetry axis, 12n positioning teeth are uniformly arranged on the inner side surface of the stator core around the axial central axis at intervals, each set of three-phase winding module comprises 6n coils which are wound on each positioning tooth in a one-to-one correspondence mode and are connected through a common contact, the 6n coils are divided into 3 groups which are respectively connected to the same coil group of different phases of the three-phase drive power supplies, and each group of coils comprises n pairs of coils, two coils of the same coil pair are connected in series and then connected to the same phase of the same three-phase driving power supply, two coils of each coil pair of the same three-phase winding module are wound on two adjacent positioning teeth of the stator core respectively, the winding directions of the two coils of each coil pair are opposite, and n is a positive integer greater than or equal to 1.
2. The stator module of a co-rotor dual drive motor according to claim 1, wherein when n is greater than 1, each pair of coils in any two groups of coils of each set of the three-phase winding module is arranged between two pairs of coils of the other group of coils.
3. The stator module of the co-rotor dual-drive motor according to claim 1 or 2, wherein the stator core is formed by splicing two identical semicircular ring cores with semicircular cross sections, each semicircular ring core is provided with 6n positioning teeth, and each semicircular ring core is wound with one set of the three-phase winding module.
4. A co-rotor dual-drive motor, comprising a housing, a rotor assembly assembled at an axial center in the housing, and a stator module assembled in the housing and disposed around the rotor assembly to drive the rotor assembly to rotate around its central axis when the motor is powered on, wherein the stator module is the stator module according to any one of claims 1 to 3.
5. The co-rotor dual drive motor according to claim 4, wherein the rotor assembly comprises a rotor core frame, a magnetic conductive iron ring embedded outside the rotor core frame, and permanent magnet modules uniformly fixed on the outer side surface of the magnetic conductive iron ring.
6. The co-rotor dual-drive motor according to claim 5, wherein the permanent magnet module is composed of a plurality of permanent magnets which are arranged around a central axis of the rotor core frame and have circular-arc-shaped cross sections, and polarities of the permanent magnets are alternately distributed.
7. The co-rotor dual drive motor according to claim 6, wherein the permanent magnet module is formed by 10 permanent magnets, and a central angle of a cross section of each permanent magnet is 360/10n degrees.
8. The co-rotor dual drive motor according to claim 5, wherein each permanent magnet is bonded to an outer side surface of the magnet guide ring.
9. The co-rotor dual drive motor according to claim 5, 6 or 7, wherein the rotor assembly further comprises a permanent magnet protective sleeve wrapped outside the permanent magnet modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220203768.9U CN216851445U (en) | 2022-01-25 | 2022-01-25 | Co-rotor dual-drive motor and stator module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220203768.9U CN216851445U (en) | 2022-01-25 | 2022-01-25 | Co-rotor dual-drive motor and stator module thereof |
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| Publication Number | Publication Date |
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| CN216851445U true CN216851445U (en) | 2022-06-28 |
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| CN202220203768.9U Active CN216851445U (en) | 2022-01-25 | 2022-01-25 | Co-rotor dual-drive motor and stator module thereof |
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| CN (1) | CN216851445U (en) |
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- 2022-01-25 CN CN202220203768.9U patent/CN216851445U/en active Active
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