CN218071246U - Magnetic encoder has geared hub motor - Google Patents
Magnetic encoder has geared hub motor Download PDFInfo
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- CN218071246U CN218071246U CN202221961174.0U CN202221961174U CN218071246U CN 218071246 U CN218071246 U CN 218071246U CN 202221961174 U CN202221961174 U CN 202221961174U CN 218071246 U CN218071246 U CN 218071246U
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- magnetic encoder
- circuit board
- outer rotor
- magnetic
- encoder circuit
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Abstract
The utility model relates to a magnetic encoder gear hub motor, which comprises an inner stator, a magnetic encoder circuit board and an outer rotor, wherein the inner part of the inner stator is of a cavity structure, the magnetic encoder circuit board is of a circular ring structure, and the inner part of the outer rotor is of a cavity structure; the outer rotor is rotatably sleeved outside the inner stator, the magnetic encoder circuit board is arranged inside the inner stator, and one side of a chip of the magnetic encoder circuit board is arranged opposite to the inner cavity of the outer rotor; a magnetic ring is arranged in the outer rotor, the magnetic ring is of a circular ring structure, and the outer diameter of the magnetic ring is smaller than the inner diameter of the magnetic encoder circuit board; the utility model makes full use of the inner space of the inner stator and the inner space of the outer rotor to install the magnetic encoder, and increases the performance of the precise control motor and the realization of the feedback control of the motor on the basis of the original power source of the hub motor with gears; the mounting mode is convenient, simple structure, and is with low costs, need not additionally increase fixing device, can not increase the weight or the volume of motor, makes the motor occupation space less when using.
Description
Technical Field
The utility model relates to a magnetic encoder has geared hub motor belongs to motor technical field.
Background
The motor is an electromagnetic device for realizing electric energy conversion or transmission according to the electromagnetic induction law, and the motor is mainly used for generating driving torque and serving as a power source of electric appliances or various machines. The rotor form of the motor is mainly divided into two structural forms: an inner rotor type and an outer rotor type. At present, motors are widely applied, the applied field needs high-precision speed control and information feedback, and the existing motors are only used as power sources of electric appliances or various machines, cannot control the motors accurately and realize feedback control on the motors, often need manpower, increase labor force and have low working efficiency; the existing method is to install a magnetic encoder in a toothless motor, and because the toothless motor is convenient to install the magnetic encoder due to the large internal space, the structure for installing the magnetic encoder on a motor with a gear hub is less, and the torque is small; and the existing geared hub motor has a complex mounting structure for mounting the magnetic encoder, which results in high motor cost, complex motor structure, heavy motor volume and more motor occupied space.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the problem that above-mentioned prior art exists, provide a simple structure, simple to operate and do not influence the magnetic encoder that magnetic encoder used and have geared hub motor.
The utility model aims at realizing the magnetic encoder with the gear hub motor by the following technical proposal, which comprises an inner stator, a magnetic encoder circuit board and an outer rotor, wherein the inner part of the inner stator is of a cavity structure, the magnetic encoder circuit board is of a circular ring structure, and the inner part of the outer rotor is of a cavity structure; the outer rotor is rotatably sleeved outside the inner stator, the magnetic encoder circuit board is arranged inside the inner stator, and one side of a chip of the magnetic encoder circuit board is opposite to the inner cavity of the outer rotor; the magnetic ring is arranged in the outer rotor, the magnetic ring is of a circular ring structure, the outer diameter of the magnetic ring is smaller than the inner diameter of the magnetic encoder circuit board, and the magnetic ring is located in the inner ring of the magnetic encoder circuit board after the outer rotor and the inner stator are installed.
Preferably, the inner stator comprises an inner core, and the inner core is of an internal cavity structure; the inner core is equipped with the base, the magnetic encoder circuit board deviates from chip one side and installs on the base.
Preferably, the base is provided with a threading hole, and the annular width of the base is smaller than that of the magnetic encoder circuit board. The threading hole on the base corresponds to a wire on the magnetic encoder circuit board, the inner core is provided with the threading hole, the threading hole on the base also corresponds to the threading hole on the inner core, the wire penetrates out of the threading hole and is electrically connected with the controller, and the threading hole penetrates through the bottom of the inner core to enable the wire to penetrate out of the inner core; the base improves the magnetic encoder circuit board for the wire certain space, and the wire of being convenient for arranges, and the magnetic encoder circuit board passes through silica gel to be fixed on the base.
Preferably, a supporting seat is arranged in the outer rotor cavity, a port of the supporting seat is of a stepped structure, the stepped structure comprises a supporting table, and one side of the magnetic ring is mounted on the supporting table.
Preferably, the annular width of the support table is equal to the annular width of the magnetic ring. The support table provides a supporting force for the magnetic ring, one side of the magnetic ring is arranged on the support table, and when the outer rotor rotates, the magnetic ring also rotates; when the outer rotor is installed outside the inner stator, the other side of the magnetic ring is located in the inner ring of the magnetic encoder circuit board, the magnetic ring rotates in the inner ring of the magnetic encoder circuit board, the magnetic encoder circuit board is fixed, a chip is arranged on one side of the magnetic encoder circuit board, the inner diameter of the magnetic encoder circuit board is sleeved on the magnetic ring, therefore, the chip element picks up the magnetic pole on the magnetic ring, 1024 pulses are formed between the magnetic encoder circuit board and the magnetic ring, and the running speed of the motor is accurately controlled through a controller or programming. The magnetic encoder circuit board and the magnetic ring are installed by utilizing the inner cavity structure of the inner stator and the inner cavity structure of the front shell of the outer rotor, an additional fixing device is not needed, the installation is convenient and fast, the structure is simple, the weight and the volume of the motor are basically unchanged, and the outer rotor cannot influence the magnetic encoder circuit board when rotating.
Preferably, a bearing is arranged in the supporting seat.
Preferably, a chip and a plurality of wires are arranged on one side of the magnetic encoder circuit board, and the wires are electrically connected with the controller.
Preferably, the inner stator further comprises a plurality of coil groups and a plurality of first permanent magnets, a through hole is formed in the middle of the inner core, a pivot is arranged in the through hole, the plurality of coil groups are uniformly distributed on the outer wall of the inner core in a surrounding manner, and the plurality of first permanent magnets are uniformly distributed on the outer wall of the coil groups in a surrounding manner.
Preferably, a plurality of second permanent magnets are arranged in the outer rotor, the second permanent magnets are uniformly distributed on the inner wall of the outer rotor in a surrounding manner, a first through hole is formed in the middle of the outer rotor, and a gear is arranged on one side of the outer rotor. A supporting seat is arranged in the outer rotor.
The first through hole, the bearing and the gear are concentric, and one end of the pivot sequentially penetrates through the first through hole, the bearing and the gear during installation.
The utility model discloses following beneficial effect has: (1) The utility model discloses be cavity structure in the inner stator, with magnetic encoder circuit board installation and the inner stator in, be cavity structure in the outer rotor, install the magnetic ring in the outer rotor, make full use of inner space installation magnetic encoder circuit board, make have gear hub motor compact structure, increase the performance of accurate control motor and realization motor feedback control on the basis that the motor originally regarded as the power supply; form 1024 pulses between magnetic encoder circuit board and the magnetic ring, carry out accurate control to the functioning speed of motor through controller or programming, because there is the gear hub motor small, the moment of torsion is big, but the wide application in industry, agricultural automation control, can apply with restaurant robot's fixed point transportation, also can be used to the commodity circulation, the application of magnetic encoder motor is extensive.
(2) The utility model discloses set up the base in the inner core of inner stator, and set up the through wires hole on the base, install the magnetic encoder circuit board on the base, set up the supporting seat in the outer rotor, the aspect installation magnetic ring on the ladder structure of supporting seat, after outer rotor and the installation of inner stator, the magnetic ring lies in the magnetic encoder circuit board inner ring, and this mounting structure is simple, does not need additionally to increase the installation device in the motor, and low cost can not increase the weight and the volume of motor simultaneously, and the whole occupation space of motor is little; the threading hole of base is convenient for arrange of magnetic encoder circuit board wire, and the use of inside magnetic encoder circuit board can not be influenced in the external rotor when rotatory.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an exploded view of the present invention.
Figure 3 is a schematic view of the inner stator structure.
Figure 4 is a cross-sectional view of the interior of the core.
Figure 5 is a side view of the inner stator.
Fig. 6 is a first view structural diagram of the outer rotor.
Fig. 7 is a second perspective view of the outer rotor.
Fig. 8 is a schematic structural view of the outer rotor with a bearing provided therein.
Fig. 9 is a schematic structural diagram of a magnetic ring installed in the front shell of the outer rotor.
In the figure: the magnetic encoder comprises an inner stator 1, a first permanent magnet 1-1, a coil group 1-2, an inner core 1-3, a pivot 1-4, a magnetic encoder circuit board 2, an outer rotor 3, a first through hole 3-1, a second permanent magnet 3-2, a gear 3-3, a magnetic ring 4, a base 5, a support seat 6, a support table 7 and a bearing 8.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and the accompanying specification.
Example 1
As shown in fig. 1 to 9, a magnetic encoder with a gear hub motor comprises an inner stator 1, a magnetic encoder circuit board 2 and an outer rotor 3, wherein the inner part of the inner stator 1 is of a cavity structure, the magnetic encoder circuit board 2 is of a circular ring structure, and the inner part of the outer rotor 3 is of a cavity structure; the outer rotor 3 is rotatably sleeved outside the inner stator 1, the magnetic encoder circuit board 2 is arranged inside the inner stator 1, and one side of a chip of the magnetic encoder circuit board 2 is opposite to a cavity inside the outer rotor 3; the outer rotor 3 is internally provided with a magnetic ring 4, the magnetic ring 4 is of a circular ring structure, the outer diameter of the magnetic ring 4 is smaller than the inner diameter of the magnetic encoder circuit board 2, and after the outer rotor 3 and the inner stator 1 are installed, the magnetic ring 4 is positioned in the inner ring of the magnetic encoder circuit board 2.
The inner stator 1 comprises a plurality of first permanent magnets 1-1, a plurality of coil groups 1-2, an inner core 1-3 and a pivot 1-4; the inner core 1-3 is of an internal cavity structure, a through hole is formed in the middle of the inner core 1-3, and a pivot 1-4 is installed in the through hole; the inner core 1-3 is provided with a threading hole for a lead wire of the magnetic encoder circuit board to pass through, so that the inner core is conveniently and electrically connected with a controller; the outer wall of the inner core 1-3 is uniformly distributed with a plurality of coil groups 1-2 in a surrounding way, and the outer wall of the coil groups 1-2 is uniformly distributed with first permanent magnets 1-1 in a surrounding way.
A chip and a plurality of wires are arranged on one side of the magnetic encoder circuit board 2, and the wires are electrically connected with the controller; the magnetic encoder circuit board 2 is provided with a through hole for a lead to pass through, so that the magnetic encoder circuit board is conveniently and electrically connected with a controller; the inner ring of the magnetic encoder circuit board 2 is sleeved on the pivots 1-4, one side, away from the chip, of the magnetic encoder circuit board 2 is installed in the inner core 1-3, a gap is reserved between the inner ring of the magnetic encoder circuit board 2 and the pivots 1-4, the thickness of the gap corresponds to that of the magnetic ring 4, and the gap is used for accommodating the edge of the magnetic ring 4.
A plurality of second permanent magnets 3-2 are arranged in the outer rotor 3; the second permanent magnets 3-2 are uniformly distributed on the inner wall of the outer rotor 3 in a surrounding way; a first through hole 3-1 is formed in the middle of the outer rotor 3, the first through hole 3-1 penetrates through one end of a pivot shaft 1-4, a clamping groove is formed in one side of the outer rotor 3, the clamping groove is concentric with the first through hole 3-1, a gear 3-3 is installed in the clamping groove, and the pivot shaft 1-4 penetrates through the middle of the gear 3-3; a supporting seat 6 is arranged in a cavity of the outer rotor 3, and the supporting seat 6 is of a hollow structure; the supporting seat 6, the first through hole 3-1, the bearing 8 and the gear 3-3 are concentric and used for penetrating through the pivot shaft 1-4; a bearing 8 is arranged in the supporting seat 6, and the outer rotor 3 is connected with the inner stator 1 in a relative rotation manner; the port of the supporting seat 6 is of a stepped structure, the stepped structure comprises a supporting table 7, one side of the magnetic ring 4 is installed on the supporting table 7, and after the outer rotor 3 and the inner stator 1 are installed, the other side of the magnetic ring 4 is located in an inner ring of the magnetic encoder circuit board 2; the annular width of the supporting platform 7 is equal to that of the magnetic ring 4.
The working principle is as follows: firstly, uniformly surrounding and installing a plurality of coil groups 1-2 on the outer wall of an inner core 1-3, uniformly surrounding and installing a plurality of first permanent magnets 1-1 on the outer wall of the coil groups 1-2, and installing pivots 1-4 in through holes of the inner core 1-3;
then, firstly, the wires of the magnetic encoder circuit board 2 respectively pass through the through holes in the magnetic encoder circuit board 2 and the through holes in the inner cores 1-3, the wires are electrically connected with the controller, the wires are convenient to arrange through the through holes and the through holes, then, one side of the magnetic encoder circuit board 2, which is far away from the chip, is installed in the inner cores 1-3 through silica gel, and at the moment, a gap is reserved between the inner ring of the magnetic encoder circuit board 2 and the pivot 1-4;
subsequently, one side of the magnetic ring 4 is arranged on a support table 7 in the outer rotor 3 through silica gel;
and finally, one end of the pivot 1-4, which is close to the magnetic encoder circuit board 2, penetrates through the bearing 8 and penetrates out of the gear 3-3, the inner stator 1 is positioned in the cavity of the outer rotor 3, and at the moment, the other side of the magnetic ring 4 is positioned in the inner ring of the magnetic encoder circuit board 2 and is clamped in the gap.
Example 2
As shown in fig. 1 to 9, a magnetic encoder with a gear hub motor comprises an inner stator 1, a magnetic encoder circuit board 2 and an outer rotor 3, wherein the inner part of the inner stator 1 is of a cavity structure, the magnetic encoder circuit board 2 is of a circular ring structure, and the inner part of the outer rotor 3 is of a cavity structure; the outer rotor 3 is rotatably sleeved outside the inner stator 1, the magnetic encoder circuit board 2 is arranged inside the inner stator 1, and one side of a chip of the magnetic encoder circuit board 2 is opposite to a cavity inside the outer rotor 3; the outer rotor 3 is internally provided with a magnetic ring 4, the magnetic ring 4 is of a circular ring structure, the outer diameter of the magnetic ring 4 is smaller than the inner diameter of the magnetic encoder circuit board 2, and after the outer rotor 3 and the inner stator 1 are installed, the magnetic ring 4 is positioned in the inner ring of the magnetic encoder circuit board 2.
The inner stator 1 comprises a plurality of first permanent magnets 1-1, a plurality of coil groups 1-2, an inner core 1-3 and a pivot 1-4; the inner core 1-3 is of an internal cavity structure, a through hole is formed in the middle of the inner core 1-3, and a pivot 1-4 is installed in the through hole; the inner core 1-3 is provided with a threading hole for a lead wire of the magnetic encoder circuit board to pass through, so that the inner core is conveniently and electrically connected with the controller; a base 5 is arranged in the inner core 1-3, and one side, away from the chip, of the magnetic encoder circuit board 2 is installed on the base 5; the base 5 is provided with a threading hole, and the threading hole corresponds to the threading hole arranged on the inner core; the annular width of the base 5 is smaller than that of the magnetic encoder circuit board 2; the base 5 provides support for the magnetic encoder circuit board 2, meanwhile, the magnetic encoder circuit board 2 is convenient to arrange wires, space is provided for the arrangement of the wires, and the wires of the magnetic encoder circuit board 2 penetrate through the wire through holes of the base, then penetrate through the wire through holes of the inner cores 1-3 and are electrically connected with the controller; the outer wall of the inner core 1-3 is uniformly distributed with a plurality of coil groups 1-2 in a surrounding way, and the outer wall of the coil groups 1-2 is uniformly distributed with first permanent magnets 1-1 in a surrounding way.
A chip and a plurality of wires are arranged on one side of the magnetic encoder circuit board 2, and the wires are electrically connected with the controller; the magnetic encoder circuit board 2 is provided with a through hole for a lead to pass through, so that the magnetic encoder circuit board is conveniently and electrically connected with a controller; the magnetic encoder circuit board 2 is sleeved on the pivots 1-4, one side, away from the chip, of the magnetic encoder circuit board 2 is installed on the base 5 in the inner core 1-3, a gap is formed between the inner ring of the magnetic encoder circuit board 2 and the pivots 1-4, the gap corresponds to the thickness of the magnetic ring 4, and the gap is used for accommodating the edge of the magnetic ring 4.
A plurality of second permanent magnets 3-2 are arranged in the outer rotor 3; the plurality of second permanent magnets 3-2 are uniformly distributed on the inner wall of the outer rotor 3 in a surrounding manner; a first through hole 3-1 is formed in the middle of the outer rotor 3, the first through hole 3-1 penetrates through one end of a pivot shaft 1-4, a clamping groove is formed in one side of the outer rotor 3, the clamping groove is concentric with the first through hole 3-1, a gear 3-3 is installed in the clamping groove, and one end of the pivot shaft 1-4 penetrates through the middle of the gear 3-3; a supporting seat 6 is arranged in a cavity of the outer rotor 3, and the supporting seat 6 is of a hollow structure; the supporting seat 6, the first through hole 3-1, the bearing 8 and the gear 3-3 are concentric and used for penetrating through the pivot shaft 1-4; a bearing 8 is arranged in the supporting seat 6, and the outer rotor 3 is connected with the inner stator 1 in a relative rotation manner; the port of the supporting seat 6 is of a stepped structure, the stepped structure comprises a supporting table 7, one side of the magnetic ring 4 is arranged on the supporting table 7, and after the outer rotor 3 and the inner stator 1 are arranged, the other side of the magnetic ring 4 is positioned in the inner ring of the magnetic encoder circuit board 2; the annular width of the support table 7 is equal to that of the magnetic ring 4.
The working principle is as follows: firstly, uniformly surrounding and installing a plurality of coil groups 1-2 on the outer wall of an inner core 1-3, uniformly surrounding and installing a plurality of first permanent magnets 1-1 on the outer wall of the coil groups 1-2, and installing pivots 1-4 in through holes of the inner core 1-3;
then, firstly, the lead of the magnetic encoder circuit board 2 respectively passes through the through hole on the magnetic encoder circuit board 2, the threading hole on the base 5 and the threading holes on the inner cores 1-3 and is electrically connected with the controller, the lead is convenient to arrange through the through hole and the threading holes, and then the side, deviating from the chip, of the magnetic encoder circuit board 2 is installed on the base 5 in the inner cores 1-3 through silica gel, and at the moment, a gap is reserved between the inner ring of the magnetic encoder circuit board 2 and the pivot 1-4;
subsequently, one side of the magnetic ring 4 is arranged on a support table 7 in the outer rotor 3 through silica gel;
then, one end of the pivot 1-4 close to the magnetic encoder circuit board 2 penetrates through the bearing 8 and penetrates out of the gear 3-3, the inner stator 1 is positioned in a cavity formed by the outer rotor 3 and the outer rotor rear shell 3-1, and at the moment, the other side of the magnetic ring 4 is positioned in an inner ring of the magnetic encoder circuit board 2 and is clamped in the gap.
The above is only the preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and any modifications, equivalent replacements, improvements, etc. made by the technical matters of the present invention to the above embodiments should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a magnetic encoder has geared hub motor, includes inner stator (1), magnetic encoder circuit board (2), external rotor (3), its characterized in that: the inner part of the inner stator (1) is of a cavity structure, the magnetic encoder circuit board (2) is of a circular ring structure, and the inner part of the outer rotor (3) is of a cavity structure; the outer rotor (3) is rotatably sleeved outside the inner stator (1), the magnetic encoder circuit board (2) is arranged inside the inner stator (1), and one side of a chip of the magnetic encoder circuit board (2) is opposite to an inner cavity of the outer rotor (3); the magnetic encoder is characterized in that a magnetic ring (4) is arranged in the outer rotor (3), the magnetic ring (4) is of a circular ring structure, the outer diameter of the magnetic ring (4) is smaller than the inner diameter of the magnetic encoder circuit board (2), and the magnetic ring (4) is located in the inner ring of the magnetic encoder circuit board (2) after the outer rotor (3) and the inner stator (1) are installed.
2. A magnetic encoder geared hub motor according to claim 1, wherein: the inner stator (1) comprises an inner core (1-3), and the inner core (1-3) is of an internal cavity structure; the inner core (1-3) is provided with a base (5), and one side, deviating from the chip, of the magnetic encoder circuit board (2) is installed on the base (5).
3. A magnetic encoder geared hub motor according to claim 2, wherein: the base (5) is provided with a threading hole, and the ring width of the base (5) is smaller than that of the magnetic encoder circuit board (2).
4. A magnetic encoder geared hub motor according to claim 1, wherein: the magnetic ring is characterized in that a supporting seat (6) is arranged in a cavity of the outer rotor (3), a port of the supporting seat (6) is of a stepped structure, the stepped structure comprises a supporting table (7), and one side of the magnetic ring (4) is arranged on the supporting table (7).
5. A magnetic encoder geared hub motor as claimed in claim 4, wherein: the ring width of the support table (7) is equal to that of the magnetic ring (4).
6. A magnetic encoder geared hub motor as claimed in claim 4, wherein: a bearing (8) is arranged in the supporting seat (6).
7. A magnetic encoder geared hub motor according to claim 2 or 4, wherein: and a chip and a plurality of wires are arranged on one side of the magnetic encoder circuit board (2), and the wires are electrically connected with the controller.
8. A magnetic encoder geared hub motor according to claim 2, wherein: the inner stator (1) further comprises a plurality of coil groups (1-2) and a plurality of first permanent magnets (1-1), a through hole is formed in the middle of the inner core (1-3), a pivot (1-4) is arranged in the through hole, the coil groups (1-2) are uniformly distributed on the outer wall of the inner core (1-3) in a surrounding mode, and the first permanent magnets (1-1) are uniformly distributed on the outer wall of the coil groups (1-2) in a surrounding mode.
9. A magnetic encoder geared hub motor according to claim 2 or 4, wherein: a plurality of second permanent magnets (3-2) are arranged in the outer rotor (3), the second permanent magnets (3-2) are uniformly distributed on the inner wall of the outer rotor (3) in a surrounding mode, a first through hole (3-1) is formed in the middle of the outer rotor (3), and a gear (3-3) is arranged on one side of the outer rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221961174.0U CN218071246U (en) | 2022-07-28 | 2022-07-28 | Magnetic encoder has geared hub motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221961174.0U CN218071246U (en) | 2022-07-28 | 2022-07-28 | Magnetic encoder has geared hub motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218071246U true CN218071246U (en) | 2022-12-16 |
Family
ID=84401899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221961174.0U Active CN218071246U (en) | 2022-07-28 | 2022-07-28 | Magnetic encoder has geared hub motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218071246U (en) |
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2022
- 2022-07-28 CN CN202221961174.0U patent/CN218071246U/en active Active
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