CN218416155U - Permanent magnet synchronous direct drive motor - Google Patents
Permanent magnet synchronous direct drive motor Download PDFInfo
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- CN218416155U CN218416155U CN202222492222.2U CN202222492222U CN218416155U CN 218416155 U CN218416155 U CN 218416155U CN 202222492222 U CN202222492222 U CN 202222492222U CN 218416155 U CN218416155 U CN 218416155U
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- slip ring
- conductive slip
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- shaft
- permanent magnet
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Abstract
The utility model provides a wide range of application's permanent magnetism directly drives motor in step, including the motor casing, rotationally install in the motor shaft of motor casing, be fixed in the armature winding of motor shaft, be fixed in the permanent magnetism magnetic pole on the motor casing to and electrically conductive sliding ring. Wherein the permanent magnetic pole is arranged opposite to the armature winding; the conductive slip ring comprises a conductive slip ring shell, a conductive slip ring middle shaft, a rotor side conductor, a stator side conductor, a rotor side outgoing line and a stator side outgoing line. The conductive slip ring middle shaft is rotatably arranged on the conductive slip ring shell; the rotor side conductor is arranged in the conductive slip ring shell and is fixed on the conductive slip ring center shaft; the stator side conductor is fixed on the conductive slip ring shell and is arranged opposite to the rotor side conductor; one end of the rotor edge outlet wire is connected with the rotor edge conductor, and the other end of the rotor edge outlet wire is connected with the armature winding; one end of the stator side outgoing line is connected with the stator side conductor. The center shaft of the conductive slip ring is coaxially and fixedly connected with a motor shaft, and the motor shaft is provided with a force input line channel for the rotor edge to pass through.
Description
Technical Field
The utility model relates to the technical field of electric machines, especially, relate to a permanent-magnet synchronous direct drive motor.
Background
The permanent magnet synchronous direct drive motor has the advantages of simple structure, few transmission system components, convenience in installation, small gap and the like, and is widely applied to the industry fields of traffic equipment, logistics equipment, semiconductor manufacturing equipment, electronic manufacturing equipment, photovoltaic equipment and the like.
The permanent magnet synchronous direct drive motor omits a speed reducer, the rotating speed range is generally below 300rpm, and the permanent magnet synchronous direct drive motor usually adopts a structural form that an armature is arranged inside and a permanent magnet magnetic pole is arranged outside.
As shown in fig. 1, the existing permanent magnet synchronous direct drive motor includes a motor shaft 1, a motor casing 10 composed of an upper end cover 2 and a lower end cover 7, an armature winding 4, and a permanent magnet pole 5. The motor shaft 1 is arranged on the motor shell 10 through the bearing 3 and the bearing 6, and two ends of the motor shaft 1 extend out of the motor shell 10; the armature winding 4 is arranged in the motor shell 10 and is fixed on the motor shaft 1; the permanent magnetic pole 5 is fixed on the inner side of the motor shell 10 and is arranged opposite to the armature winding 4. The motor shaft 1 is internally provided with a force input line channel 8, and the outgoing line of the armature winding 4 is led out of the motor shell 10 through the force input line channel 8 and is connected with a connecting wire 9.
In the working process of the existing permanent magnet synchronous direct-drive motor, a motor shaft 1 and an armature winding 4 are fixed, and a motor shell 10 and a permanent magnet pole 5 fixed on the motor shell do rotary motion.
According to the existing permanent magnet synchronous direct-drive motor, since the outgoing line of the armature winding 4 is led out of the motor shell 10 and is connected with the wiring 9, if the permanent magnet magnetic pole 5 is fixed and the motor shaft 1 and the armature winding 4 rotate, the wiring 9 can be wound on the motor shaft 1. Therefore, the existing permanent magnet synchronous direct-drive motor cannot realize the working mode that the permanent magnet magnetic pole 5 is fixed and the armature winding 4 rotates, so that the application range of the permanent magnet synchronous direct-drive motor is limited. Meanwhile, in the existing permanent magnet synchronous direct-drive motor, the motor shell 10 and the permanent magnet pole 5 which do rotary motion have larger sizes and larger rotary radius, so that the rotary inertia is larger, and the response speed of the motor rotating speed control of the direct-drive motor is low.
SUMMERY OF THE UTILITY MODEL
One object of the utility model is to provide a permanent magnet synchronous direct drive motor with wide application range;
another object of the utility model is to provide a motor speed control's fast permanent magnetism synchronous direct drive motor of response.
According to the utility model discloses an aspect, a permanent magnetism directly drives motor in step, include motor casing, motor shaft, armature winding, permanent magnetism magnetic pole and electrically conductive sliding ring. A motor shaft is rotatably mounted to the motor housing; the armature winding is arranged in the motor shell and is fixed on the motor shaft; the permanent magnetic pole is fixed on the motor shell and is arranged opposite to the armature winding; the conductive slip ring comprises a conductive slip ring shell, a conductive slip ring middle shaft, a rotor side conductor, a stator side conductor, a rotor side outgoing line and a stator side outgoing line. The conductive slip ring middle shaft is rotatably arranged on the conductive slip ring shell; the rotor edge conductor is arranged in the conductive slip ring shell and is fixed on the conductive slip ring central shaft; the stator side conductor is fixed on the conductive slip ring shell and is arranged opposite to the rotor side conductor; one end of the rotor side outgoing line is connected with the rotor side conductor, and the other end of the rotor side outgoing line is connected with the armature winding; the stator side outgoing line is connected with the stator side conductor. The center shaft of the conductive slip ring is coaxially and fixedly connected with the motor shaft, and the motor shaft is provided with a force input line channel for the outgoing line of the rotor to penetrate.
According to the utility model discloses an embodiment, the line of entry passageway includes first extension and the second extension that communicates each other, wherein the opening of second extension set up in the outer peripheral face of motor shaft.
According to an embodiment of the present invention, the second extension is close to the armature winding at an opening position of an outer peripheral surface of the motor shaft.
According to the utility model discloses an embodiment, the opening of first extension section set up in the bottom face of motor shaft, just the central line of first extension section with the axis coincidence of motor shaft, the epaxial end in electrically conductive sliding ring through the opening of first extension section set up in the first extension section.
According to the utility model discloses an embodiment, the motor casing includes that motor upper end cover and part are flat motor lower extreme cover, wherein the motor upper end cover with motor lower extreme cover detachably links together.
According to the utility model discloses an embodiment, the conductive slip ring shell includes the conductive slip ring casing of cavity cylindricality and is fixed in the conductive slip ring end cover of conductive slip ring casing tip, wherein, the motor lower extreme cover with conductive slip ring end cover detachably links together, the motor lower extreme cover is the flat part of plate for the part of being connected with conductive slip ring end cover.
According to an embodiment of the present invention, the lower end of the conductive slip ring shaft extends out of the conductive slip ring housing.
According to the utility model discloses an embodiment, the centraxonial lower tip of conductive slip ring is equipped with the boss, the diameter of boss is greater than the centraxonial diameter of conductive slip ring, the boss with the coaxial setting of conductive slip ring axis.
According to the utility model discloses an embodiment, the synchronous direct drive motor of permanent magnetism still includes the encoder magnetite, the encoder magnetite with the coaxial setting of conductive slip ring axis.
According to an embodiment of the present invention, the encoder magnet is fixed to the boss.
According to an embodiment of the present invention, the lower end of the motor shaft extends out of the motor housing, and the opening of the first extension section is provided on the circumferential surface of the portion of the motor shaft extending out of the motor housing.
According to an embodiment of the present invention, the lower end of the motor shaft has a neck section with a diameter smaller than the diameter of the motor shaft; the center shaft of the conductive slip ring is provided with a central through hole, and the necking section of the motor shaft is arranged in the central through hole of the center shaft of the conductive slip ring.
According to the utility model discloses an embodiment, still be provided with on the conductive slip ring shell and spline the structure, be used for the permanent magnetism directly drives the fixed conductive slip ring shell of motor during operation in step.
According to the utility model discloses an embodiment, the synchronous direct drive motor of permanent magnetism still includes the mount pad, the mount pad include the installation department and be formed at the cap portion of installation department, the installation department is fixed in the centraxonial central through-hole of conductive slip ring.
According to the utility model discloses an embodiment, the synchronous direct drive motor of permanent magnetism still includes the encoder magnetite, the encoder magnetite with the coaxial setting of conductive slip ring axis.
According to an embodiment of the present invention, the encoder magnet is fixed to the cap.
The utility model discloses at least, following advantage or beneficial effect have: the utility model discloses a permanent magnetism synchronization directly drives motor is including leading electrical slip ring, leads electrical slip ring axis and the coaxial fixed connection of motor shaft, and the one end of being qualified for the next round of competitions on the rotor limit is connected in rotor limit conductor, and the other end passes the income power line passageway in the motor shaft, connects in armature winding. That is to say, the both ends that the rotor limit was qualified for the next round of competitions all connect on rotatable part, like this the utility model discloses a synchronous direct drive motor of permanent magnetism has two kinds of optional mode: the first one is that the motor shell, the permanent magnetic pole, the conductive slip ring shell and the stator side conductor are fixed, and the armature winding, the motor shaft, the conductive slip ring middle shaft, the rotor side conductor and the rotor side outgoing line rotate; the second type is opposite, the motor shell, the permanent magnetic pole, the conductive slip ring shell and the stator side conductor rotate, and the armature winding, the motor shaft, the conductive slip ring middle shaft, the rotor side conductor and the rotor side outgoing line are fixed. Therefore, the utility model discloses a synchronous direct drive motor's of permanent magnetism range of application is wide.
On the other hand, work as the utility model discloses a permanent magnetism is synchronous directly drives the motor and chooses for use when a mode, is rotary motion's armature winding, motor shaft, conductive slip ring axis, rotor side conductor etc. and radius of rotation is less, and inertia is less to can effectively promote the response speed of motor speed control.
Furthermore, the utility model discloses an among the permanent magnetism synchronous direct drive motor, because the existence of electrically conductive sliding ring, still for the higher encoder of precision, provide the mounted position of magnetite.
Drawings
The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.
FIG. 1 is a schematic structural diagram of a conventional permanent magnet synchronous direct drive motor;
fig. 2 is a schematic structural diagram of a first embodiment of the permanent magnet synchronous direct drive motor of the present invention;
fig. 3 is a schematic structural diagram of a conductive slip ring in the permanent magnet synchronous direct drive motor shown in fig. 2;
fig. 4 is a schematic structural diagram of a second embodiment of the permanent magnet synchronous direct drive motor of the present invention.
Reference numerals:
1: motor shaft
2: motor upper end cover
3: motor bearing
4: armature winding
5: permanent magnetic pole
6: motor bearing
7: motor lower end cover
8: motor input line channel
9: wiring
10: motor casing
11: edge outlet wire of conductive slip ring rotor
12: conductive slip ring center shaft
13: conductive slip ring bearing
14: conductive slip ring end cover
15: rotor side conductor
16: stator side conductor
17: conductive slip ring shell
18: conductive slip ring bearing
19: stator edge outgoing line of conductive slip ring
20: conductive slip ring
21: conductive slip ring shell
22: magnetic encoder
30: first extension section of motor input line channel
31: second extension section of motor input line channel
32: screw nail
40: rotation stopping sheet
51: cap part
52: mounting part
110: motor shaft necking section
120: boss
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.
Example one
As shown in fig. 2 and fig. 3, it is a first embodiment of the permanent magnet synchronous direct drive motor of the present invention, which includes a motor shaft 1, a motor casing 10, an armature winding 4, a permanent magnetic pole 5 and a conductive slip ring 20.
The motor casing 10 has an accommodating space therein, and in the first embodiment, the motor casing 10 includes, for example, a cup-shaped motor upper cover 2 and a partially flat-plate-shaped motor lower cover 7, and the motor upper cover 2 and the motor lower cover 7 are detachably connected together, for example, by bolts. In other embodiments, the motor housing 10 is not limited to the above structure, and the present invention can be applied to a shell-shaped structure having an accommodating space.
The motor shaft 1 is rotatably mounted to a middle position of the motor housing 10, for example, the motor shaft 1 is provided to the motor housing 10 through a bearing 3 and a bearing 6. The upper end of the motor shaft 1 may extend out of the motor housing 10 for outputting power, and the lower end of the motor shaft 1 may be located inside the motor housing 10.
The armature winding 4 is disposed in the accommodating space of the motor housing 10, fixed to the motor shaft 1, and rotatable together with the motor shaft 1.
The permanent magnetic pole 5 is fixed on the inner side wall of the motor shell 10 and is arranged opposite to the armature winding 4.
As shown in fig. 3, the conductive slip ring 20 includes a conductive slip ring housing 21, a conductive slip ring center shaft 12, a rotor side conductor 15, a stator side conductor 16, a rotor side outgoing line 11, and a stator side outgoing line 19.
The conductive slip ring housing 21 has an accommodating space therein. In this first embodiment, the conductive slip ring housing 21 includes a hollow cylindrical conductive slip ring housing 17 and a conductive slip ring end cap 14 fixed to one end of the housing. In other embodiments, the conductive slip ring housing 21 is not limited to the above-described structure.
The slip ring center shaft 12 is rotatably mounted to the slip ring housing 21 at an intermediate location, such as by bearings 13 and 18, to the slip ring housing 21.
The rotor side conductor 15 is fixed on the conductive slip ring center shaft 12 and is positioned in the accommodating space in the conductive slip ring shell 21; the stator side conductor 16 is fixed on the inner side of the conductive slip ring shell 21 and is arranged opposite to the rotor side conductor 15; the rotor side conductor 15 is connected to the rotor side outgoing line 11.
Referring again to fig. 2, the motor shaft 1 is provided with an inlet passage 8. One end of the rotor side outlet wire 11 is connected to the rotor side conductor 15, and the other end is connected to the armature winding 4 after passing through the inlet wire channel 8. In the first embodiment, the inlet passage 8 of the motor shaft 1 includes a first extension 30 and a second extension 31 that are communicated with each other, and the first extension 30 and the second extension 31 are at an obtuse angle, for example, so as to facilitate wiring.
The second extension 31 of the power input passage 8 opens to the outer peripheral surface of the motor shaft 1, and further, the second extension 31 is close to the armature winding 4 at the opening position of the outer peripheral surface of the motor shaft 1. In the first embodiment, the first extension 30 is opened at the bottom end face of the motor shaft 1, and the center line of the first extension 30 is coincident with the center axis 12 of the conductive slip ring of the motor shaft 1.
The upper end part of the conductive slip ring center shaft 12 extends out of a conductive slip ring shell 21 and is inserted and fixed in a first extension section 30 of the force input line channel 8 of the motor shaft 1, and the central axis of the conductive slip ring center shaft 12 is superposed with the central axis of the motor shaft 1, namely the two are coaxially arranged. The conductive slip ring end cover 14 is fixedly connected with the motor lower end cover 7, for example, by screws 32.
In the first embodiment, the input line channel 8 of the motor shaft 1 is used as a routing channel for the rotor-side output line 11 and is also used for fixing the conductive slip ring center shaft 12. The permanent magnet synchronous direct-drive motor is compact in structure, small in size and suitable for miniaturization.
In the first embodiment, the rotor-side outlet 11 of the conductive slip ring replaces the connection 9 in the prior art, so that the armature winding 4 can rotate freely by more than 360 °.
As shown in fig. 2 and fig. 3, the lower end of the conductive slip ring center shaft 12 extends out of the conductive slip ring housing 17, the lower end of the conductive slip ring center shaft 12 is provided with a boss 120, the boss 120 is coaxially arranged with the conductive slip ring center shaft 12, the boss 120 may be integrated with the conductive slip ring center shaft 12, and the diameter of the boss 120 is greater than that of the conductive slip ring center shaft 12.
The lower surface of the boss 120 is fixed with an encoder magnet 22, and the central line of the encoder magnet 22 coincides with the central axis of the conductive slip ring center shaft 12, that is, the encoder magnet 22, the conductive slip ring center shaft 12 and the motor shaft 1 are coaxially arranged. In the case that the boss 120 is not disposed at the lower end of the conductive slip ring center shaft 12, the encoder magnet 22 may be directly fixed to the lower end of the conductive slip ring center shaft 12.
When the first embodiment of the permanent magnet synchronous direct drive motor of the utility model works, the motor shell 10, the permanent magnet pole 5, the conductive slip ring shell 21 and the stator side conductor 16 are fixed; the armature winding 4, the motor shaft 1, the conductive slip ring middle shaft 12, the rotor side conductor 15 and the rotor side outgoing line 11 synchronously rotate, and the response speed of motor rotating speed control can be effectively improved due to the fact that the size of a rotating part is small, the rotating radius is small, and the rotating inertia is low; meanwhile, a mounting position is provided for the high-precision encoder magnet 22, so that the encoder magnet 22 can keep good coaxiality with the conductive slip ring middle shaft 12 and the motor shaft 1. On the other hand, when the first embodiment of the permanent magnet synchronous direct drive motor of the utility model works, the motor shell 10, the permanent magnet pole 5, the conductive slip ring shell 21 and the stator side conductor 16 can also rotate; the armature winding 4, the motor shaft 1, the conductive slip ring center shaft 12, the rotor side conductor 15, the rotor side outgoing line 11 and the encoder magnet 22 are fixed.
Example two
The utility model discloses synchronous direct drive motor embodiment two of permanent magnetism lies in with the difference of embodiment one:
the lower end of the motor shaft 1 extends out of the motor casing, and the first extension section 30 of the force input line channel 8 of the motor shaft 1 is opened on the circumferential surface of the motor shaft 1 extending out of the motor casing. Have the interval between electrically conductive sliding ring shell and the motor casing, be provided with on the electrically conductive sliding ring shell and spline the structure, for example set up in the rotor plate 40 that splines of electrically conductive sliding ring shell bottom portion, so that the utility model discloses permanent magnetism directly drives the motor in step, and the electrically conductive sliding ring shell keeps motionless.
The lower end of the motor shaft 1 has a necking section 110 having a diameter smaller than that of the motor shaft 1; the conductive slip ring center shaft 12 is provided with a central through hole, and the neck section 110 of the motor shaft 1 is inserted and fixed at the upper end part of the central through hole of the conductive slip ring center shaft 12, so that the coaxial fixation of the conductive slip ring center shaft and the conductive slip ring center shaft is realized.
The lower end of the central through hole of the conductive slip ring center shaft 12 is fixed with a mounting seat, the mounting seat comprises a mounting part 52 and a cap part 51 formed on the mounting part 52, and the mounting part 52 is fixed with, for example, the lower end of the central through hole of the conductive slip ring center shaft 12 in an interference fit mode. The lower surface of the cap 51 is fixed with the encoder magnet 22, wherein the encoder magnet 22, the conductive slip ring center shaft 12 and the motor shaft 1 are coaxially arranged. In other embodiments, the encoder magnet 22 may be fixed to the lower end of the conductive slip ring center shaft 12 by other methods, for example, the mounting seat is omitted and the encoder magnet is directly adhered to the lower end of the conductive slip ring center shaft 12.
The utility model discloses other structures and theory of operation of permanent magnetism synchronous direct drive motor embodiment two are the same with embodiment one, and it is no longer repeated here.
In the embodiments of the present application, the terms "mounting," "connecting," "fixing," and the like are used broadly, for example, "connecting" may be a fixed connection, a detachable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the examples of the application can be understood by those skilled in the art according to specific situations.
In the description of the embodiments of the present application, it is to be understood that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or units must have a specific direction, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the embodiments of the present application.
In the description herein, reference to the term "one embodiment," "some embodiments," "a specific embodiment," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application embodiment. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the claimed embodiments and is not intended to limit the claimed embodiments, and various modifications and changes may be made to the claimed embodiments by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the applied embodiment shall be included in the protection scope of the applied embodiment.
Claims (16)
1. A permanent magnet synchronous direct drive motor is characterized by comprising:
a motor casing;
a motor shaft rotatably mounted to the motor housing;
the armature winding is arranged in the motor shell and is fixed on the motor shaft;
the permanent magnetic pole is fixed on the motor shell and is arranged opposite to the armature winding; and
a conductive slip ring, comprising:
a conductive slip ring housing;
the conductive slip ring middle shaft is rotatably arranged on the conductive slip ring shell;
the rotor edge conductor is arranged inside the conductive slip ring shell and is fixed on the conductive slip ring center shaft;
the stator side conductor is fixed on the conductive slip ring shell and is arranged opposite to the rotor side conductor;
one end of the rotor side outgoing line is connected with the rotor side conductor, and the other end of the rotor side outgoing line is connected with the armature winding; and
one end of the stator side outgoing line is connected with the stator side conductor;
the center shaft of the conductive slip ring is coaxially and fixedly connected with the motor shaft, and the motor shaft is provided with a force input line channel for the outgoing line of the rotor to penetrate.
2. The permanent magnet synchronous direct drive motor according to claim 1, wherein the inlet line channel comprises a first extension section and a second extension section which are communicated with each other, wherein an opening of the second extension section is arranged on the outer peripheral surface of the motor shaft.
3. The permanent magnet synchronous direct drive motor according to claim 2, wherein the second extension section is adjacent to the armature winding at an opening position of an outer peripheral surface of the motor shaft.
4. The permanent magnet synchronous direct drive motor according to claim 2, wherein the opening of the first extension section is arranged at the bottom end face of the motor shaft, the center line of the first extension section is coincident with the central axis of the motor shaft, and the upper end of the center axis of the conductive slip ring is arranged in the first extension section through the opening of the first extension section.
5. The direct drive permanent magnet synchronous motor according to claim 1, wherein the motor casing comprises a motor upper end cover and a motor lower end cover with a flat plate part, wherein the motor upper end cover and the motor lower end cover are detachably connected together.
6. The permanent magnet synchronous direct drive motor according to claim 5, wherein the conductive slip ring housing comprises a hollow cylindrical conductive slip ring housing and a conductive slip ring end cover fixed at the end of the conductive slip ring housing, wherein the motor lower end cover and the conductive slip ring end cover are detachably connected together, and the flat plate-shaped part of the motor lower end cover is a part connected with the conductive slip ring end cover.
7. The permanent magnet synchronous direct drive motor according to any one of claims 1 to 6, wherein a lower end of the conductive slip ring center shaft extends out of the conductive slip ring housing.
8. The permanent magnet synchronous direct drive motor according to claim 7, wherein a boss is arranged at the lower end part of the conductive slip ring center shaft, the diameter of the boss is larger than that of the conductive slip ring center shaft, and the boss and the conductive slip ring center shaft are coaxially arranged.
9. The permanent magnet synchronous direct drive motor according to claim 8, further comprising a coder magnet, wherein the coder magnet is arranged coaxially with the conductive slip ring central shaft.
10. The permanent magnet synchronous direct drive motor according to claim 9, wherein the encoder magnet is fixed to the boss.
11. The permanent magnet synchronous direct drive motor according to claim 2, wherein a lower end portion of the motor shaft extends out of the motor casing, and the opening of the first extension section is provided on a circumferential surface of a portion of the motor shaft extending out of the motor casing.
12. The permanent magnet synchronous direct drive motor as set forth in claim 11, wherein the lower end portion of the motor shaft has a necked section having a diameter smaller than the diameter of the motor shaft; the center shaft of the conductive slip ring is provided with a central through hole, and the necking section of the motor shaft is arranged in the central through hole of the center shaft of the conductive slip ring.
13. The permanent magnet synchronous direct drive motor according to claim 11, wherein the conductive slip ring housing is further provided with a rotation stopping structure for fixing the conductive slip ring housing when the permanent magnet synchronous direct drive motor works.
14. The permanent magnet synchronous direct drive motor according to claim 12, further comprising a mounting base, wherein the mounting base comprises a mounting portion and a cap portion formed on the mounting portion, and the mounting portion is fixed to a central through hole of the conductive slip ring central shaft.
15. The permanent magnet synchronous direct drive motor according to claim 14, further comprising an encoder magnet, wherein the encoder magnet is arranged coaxially with the center shaft of the conductive slip ring.
16. The permanent magnet synchronous direct drive motor according to claim 15, wherein the encoder magnet is fixed to the cap portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222492222.2U CN218416155U (en) | 2022-09-20 | 2022-09-20 | Permanent magnet synchronous direct drive motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222492222.2U CN218416155U (en) | 2022-09-20 | 2022-09-20 | Permanent magnet synchronous direct drive motor |
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| Publication Number | Publication Date |
|---|---|
| CN218416155U true CN218416155U (en) | 2023-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222492222.2U Active CN218416155U (en) | 2022-09-20 | 2022-09-20 | Permanent magnet synchronous direct drive motor |
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| Country | Link |
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| CN (1) | CN218416155U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11863049B1 (en) * | 2023-08-02 | 2024-01-02 | Dongliang Tang | Hollow direct-current brushless motor and fan |
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2022
- 2022-09-20 CN CN202222492222.2U patent/CN218416155U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11863049B1 (en) * | 2023-08-02 | 2024-01-02 | Dongliang Tang | Hollow direct-current brushless motor and fan |
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