CN115987029B - Hub torque and rotation speed sensing integrated motor - Google Patents
Hub torque and rotation speed sensing integrated motor Download PDFInfo
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- CN115987029B CN115987029B CN202310279569.5A CN202310279569A CN115987029B CN 115987029 B CN115987029 B CN 115987029B CN 202310279569 A CN202310279569 A CN 202310279569A CN 115987029 B CN115987029 B CN 115987029B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
Abstract
The invention relates to the technical field of motors, in particular to a hub torque and rotation speed sensing integrated motor, which is characterized in that an induction module assembly is arranged in the area between a motor end cover and a flywheel assembly, the induction module assembly is provided with a bearing ring and an induction module assembly arranged on the bearing ring, the bearing ring is provided with a ring edge connected with the end cover and a mounting hole positioned in the middle, the induction module assembly comprises a rotation speed sensing module and a torque sensing module, the torque sensing module comprises a strain part and a conversion part, the conversion part and the rotation speed sensing module are sequentially distributed on the mounting hole wall, the strain part is arranged in the area between the ring edge and the mounting hole, and the strain part and the rotation speed sensing module form radial distribution in space. The invention adopts an integrated positioning and connecting mode, realizes the integrated assembly of the induction module assembly and the motor, adopts the structural layout that two induction modules of rotating speed induction and torque induction are arranged in parallel in the radial direction of space, obviously reduces the space requirement of the induction modules and realizes an integrated assembly.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a hub torque and rotation speed sensing integrated motor.
Background
The rotating speed and torque sensing device is widely applied to equipment needing motor driving, is used for monitoring the running state parameters of the equipment, and uses the parameters to carry out corresponding system control, and is an electric power-assisted bicycle in a common typical case. Taking an electric power-assisted bicycle as an example, a control module of the electric power-assisted bicycle generally needs to acquire the current torque and rotation speed values of the bicycle to calculate, and the obtained calculation result is used for controlling the power-assisted state of the motor in real time, including parameters such as the input current of the motor, so that the optimal control and riding effects are achieved.
At present, a part of the booster bicycle adopts a centrally-mounted motor which is arranged at the five-way position of the frame, and a rotating speed and torque sensing device and a driver are integrated in the booster bicycle, so that the booster bicycle has large volume, complex frame and large motor reduction ratio; another part of the booster bicycles is started by a rear drive of an in-wheel motor, in which the module for the rotational speed and torque sensing means is usually a separate module and is mounted separately from the motor or together with the motor by other connectors. When the first mode of separate installation with the motor is adopted, the system of the independent module is complex and has high cost, thus being not beneficial to popularization; when adopting the second mode, when the mode through connecting piece and motor assembly together, because the restriction of space, usually need carry out extensive redesign to the associated part of current motor, not only add extra spare part, the cost is improved to make whole sensing module more complicated, and the installation difficulty, the feasibility of equipment mistake is showing and is increasing.
Disclosure of Invention
The invention aims to solve the technical problems that: overcomes the defects in the prior art and provides a hub torque and rotation speed sensing integrated motor.
The technical scheme adopted for solving the technical problems is as follows: the hub torque and rotation speed sensing integrated motor comprises a hub motor assembly, wherein the hub motor assembly comprises a main shaft, an end cover and a shell which are arranged on the main shaft, a flywheel assembly is arranged on the main shaft close to the end cover,
the area between end cover and the flywheel assembly is provided with the sensing module assembly, the sensing module assembly has the ring of bearing and installs the sensing module subassembly on the ring of bearing, the ring of bearing has the ring limit of being connected with the end cover and is located the mounting hole in middle part, the sensing module subassembly includes rotational speed sensing module and moment of torsion sensing module, moment of torsion sensing module includes strain part and conversion part, conversion part and rotational speed sensing module distribute in proper order at the mounting pore wall, strain part installs in the area between ring limit and mounting hole, constitutes radial distribution in space with the rotational speed sensing module.
Further, the bearing ring comprises a shaft part, a roundabout part and a ring edge, wherein a mounting hole is formed in the shaft part in a hollow mode, the roundabout part is omega-shaped and is arranged between the outer wall of the shaft part and the ring edge, the roundabout part is close to the shaft part to form a mounting ring wall for mounting the strain part, a plurality of wire slot notches are formed in the end face of the mounting ring wall, and an even number of mounting slots are formed in the inner side wall of the mounting ring wall.
Further, a shaft hole is formed in the middle of the end cover, a bearing mounted on the main shaft is arranged in the shaft hole, a circle of groove is formed in the end cover and close to the shaft hole, the inner side portion of the groove is matched with the inner side portion of the roundabout part, and the outer side portion of the groove and the outer side portion of the roundabout part form a ring cavity for mounting the strain part.
Further, the outer wall of the shaft part, which is close to the flywheel assembly, is provided with external threads connected with the flywheel assembly.
Still further, rotational speed sensing module includes outer nest, circuit board A, interior nest and magnet, outer nest and interior nest cover in proper order on the main shaft, outer nest and main shaft fixed connection, and in the outer nest of part stretches into the mounting hole, circuit board A installs on the one end terminal surface of the outer nest that stretches into in the mounting hole, is connected with hall sensor on the circuit board A, interior nest stretches into in the mounting hole, and with carrier ring fixed connection, evenly distributed has round magnet on the interior nest.
Still further, outer nested for reducing tubular column, it includes first tubular column and second tubular column, evenly offered a plurality of locking screw holes on the periphery wall of first tubular column, the coil of being connected with circuit board A is equipped with to the outer Zhou Bian of second tubular column, has offered circuit board A's mounting hole on the terminal surface of second tubular column first, has offered a wire casing on the interior pore wall of outer nested.
Still further, the conversion part is provided with a circuit board B arranged on the inner nest, the inner nest is a tubular column, one end of the tubular column extends outwards along the radial direction of the tubular column to form a mounting lug matched with the mounting groove, a mounting ring is arranged at the end, close to the mounting lug, of the tubular column, a mounting hole II of the circuit board B is formed in the outer side face of the mounting ring, a circle of magnet mounting holes are uniformly formed in the inner side face of the mounting ring, a sensor wire passing groove is formed in the outer edge of the mounting ring, and a coil mounting face connected with the circuit board B is formed in the inner wall of the tubular column inside the mounting ring.
Still further, the strain section has a strain sensor connected to the circuit board B by a wire passing through the sensor wire passing slot.
Further, the edge of the end cover is provided with a circle of installation edge connected with the shell, and the end cover is also provided with a threaded hole for connecting the annular edge.
Further, the front half part of the main shaft is hollow, the outer side end of the hollow part is provided with an arc notch, and the outer wall of the middle part of the hollow part is provided with a wire hole communicated with the arc notch.
Further, the flywheel assembly is connected with the bearing piece, the outer sides of the flywheel assembly and the hub motor assembly on the main shaft are respectively provided with a supporting rod of the frame, the bottom end of the supporting rod is provided with a clamping connector which is clamped on the main shaft and is n-shaped, a gasket is arranged between the clamping connector and the flywheel assembly, a tightening nut is arranged between the clamping connector and the hub motor assembly, and the outer sides of the clamping connectors are sequentially provided with a limiting ring and a nut.
The beneficial effects of the invention are as follows:
(1) The integrated positioning and connecting mode is adopted, so that the integrated assembly of the rotating speed and torque sensing module and the motor is realized, the production efficiency is obviously improved, the space requirement is reduced, and the integration of the sensing module and the motor is truly realized in a physical sense;
(2) According to the available space characteristics, the structural layout that two induction modules are installed in parallel in the radial direction of space is adopted by adopting the rotation speed induction and the torque induction, so that the space requirement of the induction modules is remarkably reduced, the existing standard module components (such as flywheel components) in the product are not required to be changed, and the integrated assembly is not required to be assisted by adding additional new parts;
(3) Screw tightening and plug-in assembly modes are adopted, so that the assembly and disassembly are convenient, the assembly difficulty and the failure rate are remarkably reduced, and the maintenance cost and the difficulty in the later stage are remarkably reduced.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic illustration of the assembled hub motor assembly and flywheel assembly of the present invention.
Fig. 2 is an exploded view of fig. 1.
FIG. 3 is a schematic diagram of an induction module assembly according to the present invention.
Fig. 4 is an exploded view of fig. 3.
Fig. 5 is a cross-sectional view of fig. 3 in the direction A-A.
Fig. 6 is a schematic view of the structure of the carrier ring of the present invention.
Fig. 7 is a schematic view of the structure of fig. 6 in another direction.
Fig. 8 is a schematic diagram of the nested structure of the present invention.
Fig. 9 is a schematic view of the structure of fig. 8 in another direction.
Fig. 10 is a front view of fig. 8.
Fig. 11 is a sectional view of fig. 10 in the direction B-B.
Fig. 12 is a schematic view of the structure of the outer nest of the present invention.
Fig. 13 is a side view of fig. 12.
Fig. 14 is a cross-sectional view of fig. 13 in the direction C-C.
In the figure:
1. flywheel assembly, 2. Induction module assembly, 3. Main shaft, 31. Arc notch, 32. Wire hole, 4. Hub motor assembly, 40. Outer shell, 5. Support rod, 51. Clamping head, 6. Nut, 7. Gasket, 8. Stop ring, 9. And tightening nut, 10. End cover, 11. Outer nest, 111. First pipe column, 112. Second pipe column, 1121. Mounting hole, 114. Wire passing groove, 12. Circuit board A,13. Bearing ring, 130. Detour portion, 131. Ring edge, 132. Mounting hole, 133. Shaft portion, 1331. External screw thread, 134. Wire groove notch, 1341. Mounting groove, 14. Circuit board B,15. Bearing, 16. Magnet, 17. Inner nest, 171. Mounting ear, 172. Mounting ring, 1722. Magnet mounting hole, 1723. Sensor wire passing groove, 173. Coil mounting face, 18. Strain sensor.
Detailed Description
The invention will now be further described with reference to the drawings and preferred embodiments. The drawings are simplified schematic representations which merely illustrate the basic structure of the invention and therefore show only the structures which are relevant to the invention.
In this embodiment taking an electric power assisted vehicle as an example,
as shown in fig. 1, the hub torque and rotation speed sensing integrated motor comprises a hub motor assembly 4, a support rod 5 of a frame, a flywheel assembly 1, a corresponding limiting tightening part and the like which are assembled together, wherein a sensing module assembly 2 is arranged at the middle position inside the hub motor assembly 4 and the flywheel assembly 1, and fig. 2.
As shown in fig. 2, the hub motor assembly 4 comprises a main shaft 3, an end cover 10 and a shell 40 which are arranged on the main shaft 3, wherein the flywheel assembly 1 is installed on the main shaft 3 near the end cover 10, support rods 5 of a frame are respectively arranged on the outer sides of the flywheel assembly 1 and the hub motor assembly 4 on the main shaft 3, clamping joints 51 which are clamped on the main shaft 3 and are n-shaped are arranged at the bottom ends of the support rods 5, gaskets 7 are arranged between the clamping joints 51 and the flywheel assembly 1, tightening nuts 9 are arranged between the clamping joints 51 and the hub motor assembly 4, and limiting rings 8 and nuts 6 are sequentially arranged on the outer sides of the clamping joints 51.
As shown in fig. 3, the end cover 10 is a part of the hub motor assembly 4, the end cover 10 is used for integrally positioning and connecting the sensing module assembly 2 and the hub motor assembly 4, as shown in fig. 4 and 5, the sensing module assembly 2 is provided with a bearing ring 13 and a sensing module assembly mounted on the bearing ring 13, the bearing ring 13 is provided with a ring edge 131 connected with the end cover 10 and a mounting hole 132 positioned in the middle, the sensing module assembly comprises a rotating speed sensing module and a torque sensing module, the torque sensing module comprises a strain part and a conversion part, the conversion part and the rotating speed sensing module are sequentially distributed on the wall of the mounting hole 132, and the strain part is mounted in an area between the ring edge 131 and the mounting hole 132 and forms spatial radial distribution with the rotating speed sensing module.
As shown in fig. 5, a shaft hole is formed in the middle of the end cover 10, a bearing 15 mounted on the main shaft is arranged in the shaft hole, a circle of groove is formed on the end cover 10 at a position close to the shaft hole, an inner side part (shown as a in the figure) of the groove is matched with an inner side part (shown as D in the figure) of a detour 130 (related in the following description) of the bearing ring 13, so that accurate positioning between the inner side part and the outer side part of the detour 130 is realized, an annular cavity for mounting a strain part is formed between the outer side part of the groove and the inner side part, wherein the inner side part and the outer side part are inner side parts close to the main shaft 3 in the radial direction relative to the main shaft 3; the edge of the end cover 10 is provided with a circle of installation edge connected with the shell 40, and the end cover 10 is also provided with a threaded hole for connecting the ring edge 131 for fixing with the bearing ring 13.
As shown in fig. 6 and 7, the carrier ring 13 includes a shaft portion 133, a detour portion 130 and a ring edge 131, wherein a mounting hole 132 is formed in the shaft portion 133 in a hollow manner, the detour portion 130 is arranged between the outer wall of the shaft portion 133 and the ring edge 131, the detour portion 130 is close to the shaft portion 133 to form a mounting ring wall for mounting a strain portion, a plurality of slot notches 134 are formed in the end face of the mounting ring wall, and an even number of mounting slots 1341 are formed in the inner wall of the mounting ring wall; the shaft portion 133 is provided with external threads 1331 adjacent to the outer wall of the flywheel assembly 1 and connected to the flywheel assembly 1. The bearing ring 13 is connected with the end cover 10, and the end cover 10 is assembled to the main shaft 3 through the bearing 15, so that the integrated design and assembly of the induction module assembly 2 and the hub motor assembly 4 are realized.
As shown in fig. 5, the rotation speed sensing module is provided with an outer nest 11, a circuit board a12, an inner nest 17 and a magnet 16, the outer nest 11 and the inner nest 17 are sequentially sleeved on the main shaft 3, the outer nest 11 is fixedly connected with the main shaft 3, part of the outer nest 11 stretches into the mounting hole 132, the circuit board a12 is mounted on one end face of the outer nest 11 stretching into the mounting hole 132, a hall sensor (not shown in the drawing) is connected to the circuit board a12, the inner nest 17 stretches into the mounting hole 132 and is fixedly connected with the bearing ring 13, and a circle of magnet 16 is uniformly distributed on the inner nest 17.
The conversion part has a circuit board B14 mounted on the inner nest 17, as shown in fig. 8 to 11, the inner nest 17 is a pipe column, one end of the pipe column extends radially outwards to form a mounting ear 171 matched with a mounting groove 1341, a mounting ring 172 is disposed at the end of the pipe column near the mounting ear 171, a second mounting hole 1721 of the circuit board B14 is disposed on the outer side surface of the mounting ring 172, a circle of magnet mounting holes 1722 are uniformly disposed on the inner side surface of the mounting ring 172, a sensor wire passing groove 1723 is disposed on the outer edge of the mounting ring 172, and a coil mounting surface 173 connected with the circuit board B14 is formed on the inner wall of the pipe column inside the mounting ring 172. The circuit board B14 is mounted on the outer side surface (denoted by K in the figure) of the mounting ring 172 through 3 threaded holes, and the sensor wire passing grooves 1723 are mainly used for power transmission, and the other two wire passing grooves in the figure are used for matching the passage of the signal wires and the power wires of the strain sensor 18.
The strain portion is a strain sensor 18, and the strain sensor 18 is connected to the circuit board B14 by a wire passing through the sensor wire passing groove 1723. The strain sensor 18 senses the strain generated by the bearing ring 13, and transmits the strain signal to the circuit board B14 to be converted into voltage output; the greater the power transmitted, the greater the corresponding strain deformation and the greater the output.
As shown in fig. 12 to 14, the outer sleeve 11 is a reducer pipe column, and comprises a first pipe column 111 and a second pipe column 112, wherein a plurality of locking threaded holes 113 are uniformly formed in the outer peripheral wall of the first pipe column 111, a coil connected with the circuit board a12 is arranged on the outer Zhou Bian of the second pipe column 112, a first 1121 of a mounting hole of the circuit board a12 is formed in the end face of the second pipe column 112, and a wire passing groove 114 is formed in the inner hole wall of the outer sleeve 11. The wire passing groove 114 of the outer nest 11 is used to introduce an external power source and transmit electric power to the circuit board a12 mounted on the end face (denoted by M in the drawing) of the second pipe string 112 through 3 screw holes and the coil mounted on the outer peripheral wall (denoted by L in the drawing) of the second pipe string 112, and the inner hole wall (denoted by N in the drawing) of the second pipe string 112 is used to be mounted in cooperation with the main shaft 3 and is fixed to the main shaft 3 through 4 locking screw holes 113 with set screws.
Specifically, the outer nest 11 is fixedly mounted on the motor spindle 3 through a locking screw, the magnet 16 is mounted in an inner hole of the inner nest 17, the circuit board A12 is mounted on one end face of the outer nest 11 through a screw, and the circuit board B14 comprises a Hall sensor (not shown in the figure) for sensing and calculating the rotating speed in cooperation with the magnet 16. The circuit board B14 is arranged on the inner side plate of the inner nest 17 through screws, the inner nest 17 is arranged on the bearing ring 13 through countersunk screws, the strain sensor 18 is stuck on the outer ring of the inner side of the roundabout part 130 of the bearing ring 13, and the strain sensor and the rotating speed sensing module are arranged in parallel in the radial direction of the space, so that the position space requirement in the axial direction is reduced, and the existing space is fully utilized.
The strain sensor 18 is mounted on a mounting annular wall (denoted by E in the figure), the bottom surface (denoted by C in the figure) of the mounting groove 1341 is used for fitting with the inner side wall (denoted by H in the figure) of the mounting lug 171 of the inner nest 17, and the inner nest 17 is fixedly mounted on the carrier ring 13 through two threaded holes. In addition, the outer circumferential surface (denoted by G in the figure) of the inner nest 17 is positioned and mounted with the inner wall (denoted by F in the figure) of the mounting hole 132 of the carrier ring 13, so as to ensure that the inner nest 17 is accurately positioned at a specified position without positional displacement. In addition, the external thread 1331 of the bearing ring 13 is used for being connected with the flywheel assembly 1, transmitting the power of the flywheel to the hub motor assembly 4 and finally transmitting the power to the wheels, so that the bicycle is driven to walk.
In addition, the front half part of the main shaft 3 is hollow, the outer side end of the hollow part is provided with an arc notch 31, and the outer wall of the middle part of the hollow part is provided with a wire hole 32 communicated with the arc notch. So set up, the wiring of the power cord of being convenient for.
In this embodiment, it is to be noted that: the electric energy of the circuit board B14 and the strain sensor 18 is transmitted in a wireless way through coils arranged on the inner nest 11 and the outer nest 11; the circuit board A12 and the circuit board B14 are in signal transmission through a wireless signal transmission module; the power supply of the circuit board A12 is an external power supply (or the internal power line of the motor is led out); the rotation speed and torque signals are output to the motor control module through the wiring of the circuit board A12.
Specific working principle (note that the invention is not only aimed at electric bicycles, but also takes the electric bicycles as a description design of a table):
(1) The flywheel is used for transmitting torque power transmitted by a rider in the riding process;
(2) The torque power is transmitted to the bearing ring 13 through the flywheel and the internal and external threads on the bearing ring 13;
(3) The bearing ring 13 transmits power to the outer ring of the motor through the connection of the outer ring and the end cover 10;
(4) The housing 40 of the motor transmits power to the wheel, thereby finally driving the advancing function of the bicycle;
(5) In the riding process, if climbing or accelerating is carried out, the force applied to the bicycle by a rider is increased, so that the torque acting on the flywheel is increased, the torque acting on the bearing ring 13 is synchronously increased, and the real-time riding torque is sensed by a torque sensing module realized by the strain sensor 18 and is transmitted to the motor control module in real time;
(6) Meanwhile, the real-time riding speed is measured by the rotating speed sensing module and is transmitted to the motor control module in real time;
(7) At this time, the motor control module performs corresponding control on the motor in combination with the real-time torque and the rotational speed data (for example, when climbing a slope or accelerating, the motor is controlled to increase the current, thereby increasing the torque acting on the motor housing 40, thereby reducing the force acting on the pedal of the bicycle by the rider and increasing riding comfort).
The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and to implement the same, but are not intended to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (9)
1. The utility model provides a wheel hub moment of torsion rotational speed response integral type motor, includes wheel hub motor assembly, wheel hub motor assembly includes the main shaft and sets up end cover and the shell on the main shaft, be close to end cover installation flywheel assembly on the main shaft, its characterized in that:
the device comprises an end cover, a flywheel assembly, a bearing ring, a rotating speed sensing module, a torque sensing module, a rotating speed sensing module and a rotating speed sensing module, wherein the region between the end cover and the flywheel assembly is provided with the sensing module assembly, the sensing module assembly is provided with the bearing ring and a sensing module assembly arranged on the bearing ring, the bearing ring is provided with a ring edge connected with the end cover and a mounting hole positioned in the middle, the sensing module assembly comprises the rotating speed sensing module and the torque sensing module, the torque sensing module comprises a strain part and a conversion part, the conversion part and the rotating speed sensing module are sequentially distributed on the wall of the mounting hole, and the strain part is arranged in the region between the ring edge and the mounting hole and forms radial distribution in space with the rotating speed sensing module;
the rotating speed sensing module comprises an outer nest, a circuit board A, an inner nest and a magnet, wherein the outer nest and the inner nest are sequentially sleeved on a main shaft, the outer nest is fixedly connected with the main shaft, part of the outer nest stretches into a mounting hole, the circuit board A is arranged on the end face of one end of the outer nest stretching into the mounting hole, the circuit board A is connected with a Hall sensor, the inner nest stretches into the mounting hole and is fixedly connected with a bearing ring, and a circle of magnet is uniformly distributed on the inner nest;
the outer nest is a reducer pipe column, and comprises a first pipe column and a second pipe column, a plurality of locking threaded holes are uniformly formed in the peripheral wall of the first pipe column, a coil connected with a circuit board A is arranged on the outer Zhou Bian of the second pipe column, a first mounting hole of the circuit board A is formed in the end face of the second pipe column, and a wire passing groove is formed in the inner hole wall of the outer nest.
2. The hub torque and rotational speed sensing integrated motor of claim 1, wherein: the bearing ring comprises a shaft part, a roundabout part and a ring edge, wherein a mounting hole is formed in the shaft part in a hollow mode, the roundabout part is omega-shaped and is arranged between the outer wall of the shaft part and the ring edge, the roundabout part is close to the shaft part to form a mounting ring wall for mounting a strain part, a plurality of slot gaps are formed in the end face of the mounting ring wall, and an even number of mounting slots are formed in the inner side wall of the mounting ring wall.
3. The hub torque and rotational speed sensing integrated motor of claim 2, wherein: the novel end cover is characterized in that a shaft hole is formed in the middle of the end cover, a bearing mounted on the main shaft is arranged in the shaft hole, a circle of groove is formed in the end cover and close to the shaft hole, the inner side portion of the groove is matched with the inner side portion of the roundabout part, and the outer side portion of the groove and the outer side portion of the roundabout part form a ring cavity for mounting the strain part.
4. The hub torque and rotational speed sensing integrated motor of claim 2, wherein: the outer wall of the shaft part, which is close to the flywheel assembly, is provided with external threads connected with the flywheel assembly.
5. The hub torque and rotational speed sensing integrated motor of claim 1, wherein: the switching part is provided with a circuit board B arranged on the inner nest, the inner nest is a pipe column, one end of the pipe column extends outwards along the radial direction of the pipe column to form a mounting lug matched with the mounting groove, a mounting ring is arranged at the end, close to the mounting lug, of the pipe column, a mounting hole II of the circuit board B is formed in the outer side face of the mounting ring, a circle of magnet mounting holes are uniformly formed in the inner side face of the mounting ring, a sensor wire passing groove is formed in the outer edge of the mounting ring, and a coil mounting face connected with the circuit board B is formed in the inner wall of the pipe column inside the mounting ring.
6. The hub torque and rotational speed sensing integrated motor of claim 5, wherein: the strain part is provided with a strain sensor, and the strain sensor is connected with the circuit board B through a wire passing through the sensor wire passing groove.
7. The hub torque and rotational speed sensing integrated motor of claim 1, wherein: the edge of the end cover is provided with a circle of installation edge connected with the shell, and the end cover is also provided with a threaded hole for connecting the annular edge.
8. The hub torque and rotational speed sensing integrated motor of claim 1, wherein: the front half part of the main shaft is hollow, the outer side end of the hollow part is provided with an arc notch, and the outer wall of the middle part of the hollow part is provided with a wire hole communicated with the arc notch.
9. The hub torque and rotational speed sensing integrated motor of claim 1, wherein: the flywheel assembly is connected with the bearing piece, the outer sides of the flywheel assembly and the hub motor assembly on the main shaft are respectively provided with a supporting rod of the frame, the bottom end of the supporting rod is provided with a clamping connector which is clamped on the main shaft and is n-shaped, a gasket is arranged between the clamping connector and the flywheel assembly, a tightening nut is arranged between the clamping connector and the hub motor assembly, and the outer sides of the clamping connectors are sequentially provided with a limiting ring and a nut.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310279569.5A CN115987029B (en) | 2023-03-22 | 2023-03-22 | Hub torque and rotation speed sensing integrated motor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310279569.5A CN115987029B (en) | 2023-03-22 | 2023-03-22 | Hub torque and rotation speed sensing integrated motor |
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| CN115987029A CN115987029A (en) | 2023-04-18 |
| CN115987029B true CN115987029B (en) | 2023-07-25 |
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| CN210478939U (en) * | 2019-06-18 | 2020-05-08 | 深圳市森浦精机科技有限公司 | Hub motor of electric bicycle |
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| Publication number | Publication date |
|---|---|
| CN115987029A (en) | 2023-04-18 |
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