EP3797842A1

EP3797842A1 - Integrated flywheel magnetic resistance regulating system and combined device

Info

Publication number: EP3797842A1
Application number: EP20020433.7A
Authority: EP
Inventors: Wei QIAO
Original assignee: Ningbo Daokang Intelligent Technology Co Ltd
Current assignee: Ningbo Daokang Intelligent Technology Co Ltd
Priority date: 2019-09-27
Filing date: 2020-09-25
Publication date: 2021-03-31
Also published as: WO2021057071A1

Abstract

The present invention provides an integrated flywheel magnetic resistance regulating system and a combined device. The integrated flywheel magnetic resistance regulating system includes: a metal flywheel (1), a metal ring (2), a plastic bottom plate (3), a magnetic tile (4), a circular movement assembly (5), a drive motor (6), and a transmission structure. A worm screw (9) is disposed at an output end of the drive motor (6), and the transmission structure is connected between the worm screw (9) and the circular movement assembly (5). The drive motor (6) drives, by using the transmission structure, the circular movement assembly (5) to rotate around a rotating shaft, to drive the magnetic tile (4) to move. Movement of the magnetic tile (4) comprises a movement component in a radial direction. A plurality of integrated flywheel magnetic resistance regulating systems can be connected in a cascading or parallel manner, or the integrated flywheel magnetic resistance regulating system and another flywheel other than the metal flywheel (1) can be connected in a cascading or parallel manner. Based on the present invention, damping strength generated through interaction between metal rings and strength of a magnetic field can be adjusted, which is simple, reliable, and low-cost.

Description

FIELD OF TECHNOLOGY

The present invention relates to the field of fitness and sports equipment, and specifically, to an integrated flywheel magnetic resistance regulating system and a combined device.

BACKGROUND

For many fitness exercise apparatuses, such as exercise bikes, elliptical machines, or rowing machines, damping needs to be set during exercise to stimulate human muscles to generate force. A traditional flywheel resistance regulating system disclosed in the patent document CN109381834A includes a flywheel, a motor, a transmission structure, a magnetic tile, and a PCB. The motor, the transmission structure, the magnetic tile, and the PCB are all installed on the flywheel. The transmission structure includes a deceleration assembly and a lead screw assembly. The motor, the deceleration assembly, the lead screw assembly, and the magnetic tile are sequentially connected, and the magnetic tile is slidably installed on the flywheel. A protective circuit for motor operation is disposed on the PCB, and the protective circuit for motor operation is connected to the motor. The lead screw assembly includes a lead screw and an adjustment nut. The deceleration assembly includes a worm wheel and a worm screw, the worm screw is fixedly connected to the motor in a circumferential direction, and the worm wheel is fixedly connected to the lead screw in a circumferential direction. The adjustment nut forms a sliding block, and the sliding block is connected to the magnetic tile by using a disposed draw cord.
However, the traditional flywheel resistance regulating system has the following problems:

1. A structure still can be optimized.
2. The traditional flywheel resistance regulating system has a complicated structure, and is difficult to install and debug, damage to any component on a power transmission path directly causes damage to an overall function, and a failure rate is extremely high.

The patent document CN106730636A provides a portable fitness apparatus that adjusts a distance between a magnet set and a metal flywheel (1) by pulling a handle, to achieve a purpose of adjusting resistance. However, this structure is suitable for manual operation, is difficult to adapt to a motor driving structure, and is not conducive to electric or automatic adjustment. The patent document CN202620563U provides an exercise bike metal flywheel (1) device. The device achieves a purpose of adjusting resistance of a metal flywheel (1) by controlling a current in an electromagnet, but an additionally configured electromagnet structure and related lines are required, which increases manufacturing difficulty. In a magnetic resistance mechanism in a cable apparatus provided by the patent document CN105848733B , the resistance mechanism includes a metal flywheel (1) and a magnetic unit disposed to resist movement of the metal flywheel (1). However, the mobile structure is not suitable for an application environment with small space and compact structure, such as an exercise bike.
In addition, a working state of a motor in an existing fitness apparatus is completely determined by a power supply. A rotation time and a rotation direction of the motor are determined by a power-on time and a positive or negative electrode of an interface. Therefore, displacement control and monitoring of an output end of the motor cannot be implemented. In practical applications, 40% of failures are caused by a lack of this type of protection, thereby causing a large quantity of user complaints and extremely high maintenance costs.
The patent document CN101433749 describes an integrated magnetic control damping system. Compared with this application, the patent document has the following disadvantages: 1. A quantity of gears is large and costs are high. 2. The system cannot feed back position information of a magnetic tile to the outside. Therefore, a user cannot know a working state of the magnetic tile. 3. The system cannot receive an external signal to implement automatic control of a position of the magnetic tile. 4. The system cannot generate electricity by itself and needs to be connected to an external power supply.

SUMMARY

For the disadvantages in the prior art, an objective of the present invention is to provide an integrated flywheel magnetic resistance regulating system and a combined device.
An integrated flywheel magnetic resistance regulating system provided in the present invention includes: a metal flywheel 1, a metal ring 2, a plastic bottom plate 3, a magnetic tile 4, a circular movement assembly 5, a drive motor 6, and a transmission structure. The metal flywheel 1 rotates around the plastic bottom plate 3. The metal ring 2 is firmly connected to the metal flywheel 1. The drive motor 6 is installed on the plastic bottom plate 3. The magnetic tile 4 is installed on the circular movement assembly 5. The circular movement assembly 5 is rotatably installed around a rotating shaft. A worm screw 9 is disposed at an output end of the drive motor 6, and the transmission structure is connected between the worm screw 9 and the circular movement assembly 5. The drive motor 6 drives, by using the transmission structure, the circular movement assembly 5 to rotate around the rotating shaft, to drive the magnetic tile 4 to move. Movement of the magnetic tile 4 includes a movement component in a radial direction. A plurality of integrated flywheel magnetic resistance regulating systems can be connected in a cascading or parallel manner, or the integrated flywheel magnetic resistance regulating system and another flywheel other than the metal flywheel (1) can be connected in a cascading or parallel manner.
Preferably, the transmission structure includes: a reducer casing 22 and a connecting rod assembly 7. The drive motor 6 is connected to the reducer casing 22 by using the worm screw 9, and drives the connecting rod assembly 7 by using the reducer casing 22, to drive the circular movement assembly 5.
Preferably, a worm wheel 10 is disposed on the plastic bottom plate 3; the worm wheel 10 is connected to the worm screw 9; the connecting rod assembly 7 is connected to the magnetic tile 4; the transmission structure further includes: a gear rack 21, where the gear rack 21 is connected to the reducer casing 22; the connecting rod assembly 7 is connected to the magnetic tile 4; the transmission structure further includes: a shaft 12, where the shaft 12 is connected to the plastic bottom plate 3 by using a bearing; the circular movement assembly 5 is installed on the plastic bottom plate 3.
Preferably, the integrated flywheel magnetic resistance regulating system further includes: a flange plate 11; the plastic bottom plate 3 is connected to the shaft 12 by using the flange plate 11; there are a plurality of magnetic tiles 4; there are a plurality of circular movement assemblies 5; an output gear 23 is disposed on the reducer casing 22; the output gear 23 is connected to the gear rack 21.
Preferably, the integrated flywheel magnetic resistance regulating system further includes: a gear assembly; the gear assembly drives the circular movement assembly 5; the gear assembly includes a plurality of gears that are engaged with each other; the connecting rod assembly 7 includes: a first connecting rod and a second connecting rod; the first connecting rod and the second connecting rod are separately and movably connected to the circular movement assembly 5; the first connecting rod and the second connecting rod are installed on a same side of the circular movement assembly 5; or the first connecting rod and the second connecting rod are respectively installed on two sides of the circular movement assembly 5; a limiting block 8 is disposed on the circular movement assembly 5; a worm wheel 10 is disposed on the worm screw 9; the worm screw 9 is connected to the drive motor 6.
Preferably, the integrated flywheel magnetic resistance regulating system further includes: a PCB 205; the transmission structure and the PCB 205 are both installed on the plastic bottom plate 3; the transmission structure includes: a deceleration assembly and a lead screw assembly; the drive motor 6, the deceleration assembly, the lead screw assembly, and the circular movement assembly 5 are sequentially connected; a protective circuit for motor operation is disposed on the PCB 205, and the protective circuit for motor operation is connected to the drive motor 6; the lead screw assembly includes a lead screw 213 and an adjustment nut; the deceleration assembly includes a worm wheel 10 and the worm screw 9, the worm screw 9 is fixedly connected to the drive motor 6 in a circumferential direction, and the worm wheel 10 is fixedly connected to the lead screw 213 in a circumferential direction; the adjustment nut forms a sliding block 215, and the sliding block 215 is connected to the circular movement assembly 5 by using a disposed draw cord; the metal flywheel 1 is provided with a first accommodating slot and a second accommodating slot that communicate with each other; the drive motor 6 and the lead screw assembly are respectively installed in the first accommodating slot and the second accommodating slot, and a guiding surface for the sliding block 215 is formed on a slot wall surface of the second accommodating slot; a first bearing 214 is disposed between the lead screw 213 and the metal flywheel 1; a flange plate 11 is further firmly installed on the metal flywheel 1; the drive motor 6 is firmly installed on the plastic bottom plate 3 by using a disposed motor pressing block 209; the draw cord includes a steel wire draw cord 206; the plastic bottom plate 3 includes a first cover body 201 and a second cover body 202 that are firmly connected; a ring-shaped hole is formed at a radially outer end after the first cover body 201 and the second cover body 202 are assembled, and a sliding space for the magnetic tile 4 is formed in the ring-shaped hole; a copper bush 208 and a steel bush 207 are further disposed in the ring-shaped hole; or a copper bush 208 instead of a steel bush 207 is disposed in the ring-shaped hole; a spring 217 is further disposed between the first cover body 201 and the second cover body 202.
Preferably, the first bearing 214 is disposed between the lead screw 213 and the plastic bottom plate 3; the flange plate 11 is firmly installed on the plastic bottom plate 3; the drive motor 6 is firmly installed on the plastic bottom plate 3 by using the disposed motor pressing block 209.
Preferably, the protective circuit for motor operation includes an MCU control circuit, a motor starting/stopping circuit, an external interface circuit, and a status display circuit; a control signal output port of the MCU control circuit is connected to a control signal input port of the motor starting/stopping circuit; a display output port of the MCU control circuit is connected to a display input port of the status display circuit; an external signal output port of the external interface circuit is separately connected to a first external signal input port of the MCU control circuit and a second external signal input port of the motor starting circuit; the MCU control circuit includes an MCU piece; an up port and a down port that are included in the MCU piece both form the control signal output port; an LED port included in the MCU piece forms the display output port; a VCC port and a GND port included in the MCU piece both form the first external signal input port; the MCU control circuit further includes a position sensor RW1, a temperature sensor RT1, a temperature sensor RT2, a capacitor C1, and a resistor R9; the position sensor RW1 includes a slide rheostat TAP; the MCU piece further includes an A1 port and a Temp port; a plurality of external signal output ports include a fifth port, a fourth port, and a third port; the VCC port is separately connected to one end of the capacitor C1, one end of a fixed end of the slide rheostat TAP, the fifth port, one end of the temperature sensor RT1, and one end of the temperature sensor RT2; the A1 port is separately connected to a sliding end of the slide rheostat TAP and the fourth port; the GND port is separately connected to the other end of the capacitor C1, the other end of the fixed end of the slide rheostat TAP, and the third port, and the GND port is grounded; the Temp port is separately connected to the other end of the temperature sensor RT1, the other end of the temperature sensor RT2, and one end of the resistor R9; the other end of the resistor R9 is grounded.
Preferably, the status display circuit includes a resistor R7, a resistor R8, a light emitting diode LED 1, and a light emitting diode LED 2; a plurality of LED ports include an LED1 port and an LED2 port; a positive electrode of the LED1 port, a positive electrode of the resistor R7, and a positive electrode of the light emitting diode LED 1 are sequentially connected, and a negative electrode of the light emitting diode LED 1 is grounded; a positive electrode of the LED2 port, a positive electrode of the resistor R8, and a positive electrode of the light emitting diode LED 2 are sequentially connected, and a negative electrode of the light emitting diode LED 2 is grounded; the motor starting/stopping circuit includes a optocoupler PC1, an optocoupler PC2, a switching transistor Q1, a switching transistor Q2, a diode D1, a diode D2, a capacitor C2, a voltage dependent resistor RV1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, and a resistor R6; a plurality of external signal output ports further include a second port and a first port; an up port, the resistor R5, and a light projector PC1A of the optocoupler PC1 are sequentially connected and then grounded; a down port, the resistor R6, and a light projector PC2A of the optocoupler PC2 are sequentially connected and then grounded; one end of the drive motor 6 is separately connected to one end of the resistor R3, one end of the voltage dependent resistor RV1, one end of the capacitor C2, one end of the resistor R4, and the second port; the other end of the drive motor 6 is separately connected to the other end of the voltage dependent resistor RV1, the other end of the capacitor C2, a collector of the switching transistor Q1, and an emitter of the switching transistor Q1; the other end of the resistor R3 is connected to one end of a light receptor PC1B of the optocoupler PC1, and the other end of the light receptor PC1B is separately connected to one end of the resistor R1 and a base of the switching transistor Q1; the other end of the resistor R1 is separately connected to the emitter of the switching transistor Q1 and a positive electrode of the diode D1; a negative electrode of the diode D1 is separately connected to a positive electrode of the diode D2 and the first port; the other end of the resistor R4 is connected to one end of a light receptor PC2B of the optocoupler PC2, and the other end of the light receptor PC2B is separately connected to a base of the switching transistor Q2 and one end of the resistor R2; the other end of the resistor R2 is separately connected to a collector of the switching transistor Q2 and a negative electrode of the diode D2; and the lead screw assembly is disposed in any one of following manners: the lead screw 213 is connected to the deceleration assembly, and the adjustment nut is connected to the magnetic tile 4; and the adjustment nut is connected to the deceleration assembly, and the lead screw 213 is connected to the magnetic tile 4.
The combined device provided based on the present invention includes: a plurality of integrated flywheel magnetic resistance regulating systems, where the plurality of integrated flywheel magnetic resistance regulating systems, and/or the integrated flywheel magnetic resistance regulating system and another flywheel other than a metal flywheel (1) are connected in a cascading or parallel manner.
Compared with the prior art, the present invention has the following beneficial effects:

1. The present invention has a reasonable structure and is convenient to operate.
2. Based on the present invention, a gap between the magnetic tile and a metal ring on the metal flywheel are adjusted, to adjust strength of a magnetic field and damping strength generated through interaction between metal rings, which is simple, reliable, and low-cost.
3. Based on the present invention, a transmission part is simplified, thereby facilitating cost control and increasing a life span.
4. Based on the present invention, transmission is performed by gears and the gear rack to more precisely control a resistance change.
5. A structure that the position sensor is fixed together with the sliding block and the position sensor is connected to the PCB is used, so that an external feedback of position information of the magnetic tile can be implemented.
6. An external signal can be received by using the PCB, and then a position of the magnetic tile is automatically adjusted.
7. Under a working condition, a self-generation function is implemented by using an internally designed power generation structure, without an external power supply.

BRIEF DESCRIPTION OF THE DRAWINGS

By reading detailed description of non-limiting embodiments with reference to the following accompanying drawings, other features, purposes, and advantages of the present invention become more apparent:

Fig. 1. is a schematic diagram of an integrated structure of a first integrated flywheel magnetic resistance regulating system according to the present invention;
Fig. 2. is a schematic diagram of a partial enlarged structure of a first integrated flywheel magnetic resistance regulating system according to the present invention;
Fig. 3. is a schematic diagram of an integrated structure of a second integrated flywheel magnetic resistance regulating system according to the present invention;
Fig. 4. is a schematic diagram of a front structure of a second integrated flywheel magnetic resistance regulating system according to the present invention;
Fig. 5. is a schematic diagram of a side structure of a second integrated flywheel magnetic resistance regulating system according to the present invention;
Fig. 6 is a schematic diagram of a metal flywheel resistance regulating system according to an embodiment of the present invention;
Fig. 7 is a section view in a direction A-A of a metal flywheel resistance regulating system according to an embodiment of the present invention;
Fig. 8 is a structural diagram of connecting electronic elements on a PCB according to an embodiment of the present invention;
Fig. 9 is a schematic structural diagram of a motor operation monitoring system according to an embodiment of the present invention;
Fig. 10 is a schematic diagram of connecting integrated flywheel magnetic resistance regulating components in a cascading manner according to an embodiment of the present invention; and
Fig. 11 is a schematic diagram of connecting integrated flywheel magnetic resistance regulating components in a parallel manner according to an embodiment of the present invention, where

metal flywheel 1	gear rack 21
metal ring 2	reducer casing 22
plastic bottom plate 3	output gear 23
magnetic tile 4	first cover body 201
circular movement assembly 5	second cover body 202
drive motor 6	PCB 205
connecting rod assembly 7	steel wire draw cord 206
first connecting rod	steel bush	207
second connecting rod	copper bush	208
limiting block 8	motor pressing block 209
worm screw 9	lead screw 213
worm wheel 10	first bearing 214
flange plate 11	sliding block 215
shaft 12	sliding resistor 216
fixing flange 13	spring 217

DESCRIPTION OF THE EMBODIMENTS

The following describes the present invention in detail with reference to the specific embodiments. The following embodiments help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be pointed out that several variations and improvements may be further made by those of ordinary skill in the art without departing from the conception of the present invention. Such variations and improvements all belong to the protection scope of the present invention.
As shown in Fig. 1 to Fig. 11, an integrated flywheel magnetic resistance regulating system provided in the present invention includes: a metal flywheel 1, a metal ring 2, a plastic bottom plate 3, a magnetic tile 4, a circular movement assembly 5, a drive motor 6, and a transmission structure. The metal flywheel 1 rotates around the plastic bottom plate 3. The metal ring 2 is firmly connected to the metal flywheel 1. The drive motor 6 is installed on the plastic bottom plate 3. The magnetic tile 4 is installed on the circular movement assembly 5. The circular movement assembly 5 is rotatably installed around a rotating shaft. A worm screw 9 is disposed at an output end of the drive motor 6, and the transmission structure is connected between the worm screw 9 and the circular movement assembly 5. The drive motor 6 drives, by using the transmission structure, the circular movement assembly 5 to rotate around the rotating shaft, to drive the magnetic tile 4 to move. Movement of the magnetic tile 4 includes a movement component in a radial direction. A plurality of integrated flywheel magnetic resistance regulating systems can be connected in a cascading or parallel manner, or the integrated flywheel magnetic resistance regulating system and another flywheel other than the metal flywheel (1) can be connected in a cascading or parallel manner. Specifically, in an embodiment, the metal ring is an aluminum ring.

1. Specifically, after cascading, each wheel generates 10 kg pulling force, then overall pulling force is 10kg^n, and n is a cascading quantity.
2. After a parallel connection, each wheel generates 10 kg pulling force, and then overall pulling force is 10 kg × a cascading quantity.

Preferably, the transmission structure includes: a reducer casing 22 and a connecting rod assembly 7. The drive motor 6 is connected to the reducer casing 22 by using the worm screw 9, and drives the connecting rod assembly 7 by using the reducer casing 22, to drive the circular movement assembly 5.
Preferably, a worm wheel 10 is disposed on the plastic bottom plate 3; the worm wheel 10 is connected to the worm screw 9. The transmission structure further includes: a gear rack 21, where the gear rack 21 is connected to the reducer casing 22. The transmission structure further includes: a connecting rod assembly 7, where the connecting rod assembly 7 is connected to the magnetic tile 4. The transmission structure further includes: a shaft 12, where the shaft 12 is connected to the plastic bottom plate 3 by using a bearing. The transmission structure further includes: a circular movement assembly 5, where the circular movement assembly 5 is installed on the plastic bottom plate 3.
Preferably, the integrated flywheel magnetic resistance regulating system further includes: a flange plate 11; the plastic bottom plate 3 is connected to the shaft 12 by using the flange plate 11; there are a plurality of magnetic tiles 4; there are a plurality of circular movement assemblies 5; an output gear 23 is disposed on the reducer casing 22; the output gear 23 is connected to the gear rack 21.
Preferably, the integrated flywheel magnetic resistance regulating system further includes: a gear assembly; the gear assembly drives the circular movement assembly 5; the gear assembly includes a plurality of gears that are engaged with each other; the connecting rod assembly 7 includes: a first connecting rod and a second connecting rod; the first connecting rod and the second connecting rod are separately and movably connected to the circular movement assembly 5; the first connecting rod and the second connecting rod are installed on a same side of the circular movement assembly 5; or the first connecting rod and the second connecting rod are respectively installed on two sides of the circular movement assembly 5; a limiting block 8 is disposed on the circular movement assembly 5; the integrated flywheel magnetic resistance regulating system further includes: a worm wheel 9, the worm wheel 10 is disposed on the worm screw 9; the worm screw 9 is connected to the drive motor 6. As shown in Fig. 3, the other end of the first connecting rod and the other end of the second connecting rod are connected to a gear. Half of an outer circumference of the gear is gear teeth and half is a plane, and the gear teeth are engaged with a component for transmission. The gear is continuously driven to forward and reversely rotate, so that the circular movement assembly 5 is driven separately by using the first connecting rod and the second connecting rod to swing back and forth, and the magnetic tile 4 on the circular movement assembly 5 gets close to and away from the metal flywheel 1. A distance of the magnetic tile 4 close to and away from the metal flywheel 1 can be precisely controlled by using a gear structure, so that generated damping strength can be precisely adjusted. The limiting block 8 is disposed on a maximum stroke of an edge of the gear teeth, so as to prevent the gear from rotating excessively and damaging the first connecting rod and the second connecting rod. A structure that the sliding block and the connecting rod drive the magnetic tile to rotate is used to make magnetic tiles on left and right sides more symmetrical in an adjustment process, thereby reducing swinging of the flywheel during actual work.
Preferably, the integrated flywheel magnetic resistance regulating system further includes: a PCB 205; the transmission structure and the PCB 205 are both installed on the plastic bottom plate 3; the transmission structure includes: a deceleration assembly and a lead screw assembly; the drive motor 6, the deceleration assembly, the lead screw assembly, and the circular movement assembly 5 are sequentially connected; a protective circuit for motor operation is disposed on the PCB 205, and the protective circuit for motor operation is connected to the drive motor 6; the lead screw assembly includes a lead screw 213 and an adjustment nut; the deceleration assembly includes a worm wheel 10 and the worm screw 9, the worm screw 9 is fixedly connected to the drive motor 6 in a circumferential direction, and the worm wheel 10 is fixedly connected to the lead screw 213 in a circumferential direction; the adjustment nut forms a sliding block 215, and the sliding block 215 is connected to the circular movement assembly 5 by using a disposed draw cord; the metal flywheel 1 is provided with a first accommodating slot and a second accommodating slot that communicate with each other; the drive motor 6 and the lead screw assembly are respectively installed in the first accommodating slot and the second accommodating slot, and a guiding surface for the sliding block 215 is formed on a slot wall surface of the second accommodating slot; a first bearing 214 is disposed between the lead screw 213 and the metal flywheel 1; a flange plate 11 is further firmly installed on the metal flywheel 1; the drive motor 6 is firmly installed on the plastic bottom plate 3 by using a disposed motor pressing block 209; the draw cord includes a steel wire draw cord 206; the plastic bottom plate 3 includes a first cover body 201 and a second cover body 202 that are firmly connected; a ring-shaped hole is formed at a radially outer end after the first cover body 201 and the second cover body 202 are assembled, and a sliding space for the magnetic tile 4 is formed in the ring-shaped hole; a copper bush 208 and a steel bush 207 are further disposed in the ring-shaped hole; or a copper bush 208 instead of a steel bush 207 is disposed in the ring-shaped hole; a spring 217 is further disposed between the first cover body 201 and the second cover body 202.
Preferably, the first bearing 214 is disposed between the lead screw 213 and the plastic bottom plate 3; the flange plate 11 is further firmly installed on the plastic bottom plate 3; the drive motor 6 is firmly installed on the plastic bottom plate 3 by using the disposed motor pressing block 209.
Preferably, the protective circuit for motor operation includes an MCU control circuit, a motor starting/stopping circuit, an external interface circuit, and a status display circuit; a control signal output port of the MCU control circuit is connected to a control signal input port of the motor starting/stopping circuit; a display output port of the MCU control circuit is connected to a display input port of the status display circuit; an external signal output port of the external interface circuit is separately connected to a first external signal input port of the MCU control circuit and a second external signal input port of the motor starting circuit; the MCU control circuit includes an MCU piece; an up port and a down port that are included in the MCU piece both form the control signal output port; an LED port included in the MCU piece forms the display output port; a VCC port and a GND port included in the MCU piece both form the first external signal input port; the MCU control circuit further includes a position sensor RW1, a temperature sensor RT1, a temperature sensor RT2, a capacitor C1, and a resistor R9; the position sensor RW1 includes a slide rheostat TAP; the MCU piece further includes an A1 port and a Temp port; a plurality of external signal output ports include a fifth port, a fourth port, and a third port; the VCC port is separately connected to one end of the capacitor C1, one end of a fixed end of the slide rheostat TAP, the fifth port, one end of the temperature sensor RT1, and one end of the temperature sensor RT2; the A1 port is separately connected to a sliding end of the slide rheostat TAP and the fourth port; the GND port is separately connected to the other end of the capacitor C1, the other end of the fixed end of the slide rheostat TAP, and the third port, and the GND port is grounded; the Temp port is separately connected to the other end of the temperature sensor RT1, the other end of the temperature sensor RT2, and one end of the resistor R9; the other end of the resistor R9 is grounded.
Preferably, the status display circuit includes a resistor R7, a resistor R8, a light emitting diode LED 1, and a light emitting diode LED 2; a plurality of LED ports includes an LED1 port and an LED2 port; a positive electrode of the Led1 port, a positive electrode of the resistor R7, and a positive electrode of the light emitting diode LED 1 are sequentially connected, and a negative electrode of the light emitting diode LED 1 is grounded; a positive electrode of the LED2 port, a positive electrode of the resistor R8, and a positive electrode of the light emitting diode LED 2 are sequentially connected, and a negative electrode of the light emitting diode LED 2 is grounded; the motor starting/stopping circuit includes a optocoupler PC1, an optocoupler PC2, a switching transistor Q1, a switching transistor Q2, a diode D1, a diode D2, a capacitor C2, a voltage dependent resistor RV1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, and a resistor R6; a plurality of external signal output ports further include a second port and a first port; an up port, the resistor R5, and a light projector PC1A of the optocoupler PC1 are sequentially connected and then grounded; a down port, the resistor R6, and a light projector PC2A of the optocoupler PC2 are sequentially connected and then grounded; one end of the drive motor 6 is separately connected to one end of the resistor R3, one end of the voltage dependent resistor RV1, one end of the capacitor C2, one end of the resistor R4, and the second port; the other end of the drive motor 6 is separately connected to the other end of the voltage dependent resistor RV1, the other end of the capacitor C2, a collector of the switching transistor Q1, and an emitter of the switching transistor Q1; the other end of the resistor R3 is connected to one end of a light receptor PC1B of the optocoupler PC1, and the other end of the light receptor PC1B is separately connected to one end of the resistor R1 and a base of the switching transistor Q1; the other end of the resistor R1 is separately connected to the emitter of the switching transistor Q1 and a positive electrode of the diode D1; a negative electrode of the diode D1 is separately connected to a positive electrode of the diode D2 and the first port; the other end of the resistor R4 is connected to one end of a light receptor PC2B of the optocoupler PC2, and the other end of the light receptor PC2B is separately connected to a base of the switching transistor Q2 and one end of the resistor R2; the other end of the resistor R2 is separately connected to a collector of the switching transistor Q2 and a negative electrode of the diode D2; and the lead screw assembly is disposed in any one of following manners: the lead screw 213 is connected to the deceleration assembly, and the adjustment nut is connected to the magnetic tile 4; and the adjustment nut is connected to the deceleration assembly, and the lead screw 213 is connected to the magnetic tile 4.
The combined device provided based on the present invention includes: a plurality of integrated flywheel magnetic resistance regulating systems, where the plurality of integrated flywheel magnetic resistance regulating systems, and/or the integrated flywheel magnetic resistance regulating system and another flywheel other than the metal flywheel (1) are connected in a cascading or parallel manner.
The present invention has a reasonable structure and is convenient to operate. A gap between the magnetic tile and the metal ring on the metal flywheel are adjusted, to adjust strength of a magnetic field and damping strength generated through interaction between metal rings, which is simple, reliable, and low-cost. A transmission part is simplified, thereby facilitating cost control and increasing a life span. Transmission is performed by gears and the gear rack, to more precisely control a resistance change.
As shown in Fig. 12, Fig. 13, and Fig. 14, in another embodiment, a PCB 126 is connected to a socket 127, and the drive motor 6 is connected to the PCB 126. An external power supply may supply power to the PCB 126 and the drive motor 6 through the socket 127.
The drive motor 6 is connected to the worm screw 9, the worm screw 9 is connected to a worm wheel 202, and the worm wheel 202, a first gear 122, and a second gear 123 are connected level by level. The worm screw 9, the worm wheel 202, the first gear 122, and the second gear 123 form a gear set. A position at which the output end of the drive motor 6 is connected to the gear rack 21 of the gear set changes.
The gear rack 21 is hard connected to two connecting rod assemblies 7, and the two connecting rod assemblies 7 are separately connected to the magnetic tile 4 by using the circular movement assembly 5. Up and down movement of the gear rack 21 drives the magnetic tile 4 to rotate around a fixed end, making the magnetic tile 4 get close to or away from the metal flywheel 1.
So far, a function that the external power supply drives the drive motor 6, to drive the magnetic tile to rotate by using the gear set, the gear rack 21, and the connecting rod assembly 7 is implemented.
The gear rack 21 is fixed together with a movement part 602 of the position sensor, and a fixed part 601 of the position sensor is welded to the PCB 126. Movement of the gear rack 21 drives relative movement of the movement part 602 and the fixed part 601, thereby changing a resistance of the position sensor. The position sensor outputs an electrical signal of a resistance change to the PCB 126, and the electrical signal is fed back to an external controller through the socket 127. A position of the magnetic tile has a unique determined relationship with the resistance of the position sensor. In this way, a function of an external feedback of position information of the magnetic tile is implemented. A structure that the position sensor is fixed together with the gear rack and the position sensor is connected to the PCB is used, so that position status information of the magnetic tile can be fed back to the outside. In actual use, a terminal user can see which gear the resistance is adjusted to. A structure that the PCB is connected to the drive motor, the position sensor is fixed together with the gear rack, and the position sensor is connected to the PCB is used, so that an external signal may be received and the position of the magnetic tile is adjusted. In actual use, the terminal user can send a signal according to a requirement of the terminal user, and the device automatically adjusts the resistance. A structure that the position sensor is fixed together with the sliding block and the position sensor is connected to the PCB is used, so that the position status information of the magnetic tile can be fed back to the outside. In actual use, the terminal user can see a specific gear to which the resistance is adjusted to.
This device may further receive an external signal through the socket, determine the resistance of the position sensor by using an MCU on the PCB 126, and control forward and reverse rotation of the motor by using the PCB, thereby driving the magnetic tile 4 to change the position. Alternatively, a wireless chip (Bluetooth or WiFi) on the PCB may be directly connected to an external device, for example, a position change of the magnetic tile 4 is controlled by using a mobile phone. The PCB may be further connected to a display screen, and a rotation speed of a flywheel and a damping value generated in a current state are displayed based on a current value of the device. A structure that the PCB is connected to the motor, the position sensor is fixed together with the sliding block, and the position sensor is connected to the PCB is used, so that an external signal may be received and the position of the magnetic tile is adjusted. In actual use, the terminal user may send a signal according to a requirement of the terminal user, and the device automatically adjusts the resistance.
The metal flywheel 1 is divided into two parts: a stator and a rotor. The stator part includes a framework 131 and a coil 132. The coil 132 is wound on the framework 131, and the framework 131 is fixed together with a center shaft 134. The rotor is a magnet 133 that is fixed on the metal flywheel 1. In a working state, the integrated magnetic device is concentrically fixed on the center shaft 134, and the metal flywheel is concentrically on the center shaft 134 and is movably connected. When the metal flywheel rotates, the magnet fixed on the metal flywheel also rotates together, and the rotation of the magnet causes an electric potential to be generated inside the fixed coil to generate electricity. In a working state, the metal flywheel 1 can be used as a power supply to supply power to the PCB 126, or to the outside through an interface. The device is made to self-generate, and the terminal user does not need to use a power plug, and gets rid of shackles of wires. Therefore, the device not only looks beautiful but also saves energy, and expands a usage scenario. The device can self-generate electricity by adding a self-generating structure, and the terminal user does not need to use a plug, and get rid of the shackles of wires. Therefore, the device not only looks beautiful but also saves energy, and expands a usage scenario.
In the description of this application, it should be understood that orientations or position relationships indicated by terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like are orientations or position relationships shown in the accompanying drawings, and these terms are only used to facilitate description of this application and simplify the description, but not to indicate or imply that the mentioned apparatus or components must have a specific orientation or must be established and operated in a specific orientation, and thus these terms cannot be understood as a limitation to this application.
The specific embodiments of the present invention are described above. It should be understood that the present invention is not limited to the foregoing specific implementations, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essential content of the present invention. The embodiments in this application and features in the embodiments may be randomly combined with each other in a non-conflicting situation.

Claims

An integrated flywheel magnetic resistance regulating system, characterized by comprising: a metal flywheel (1), a metal ring (2), a plastic bottom plate (3), a magnetic tile (4), a circular movement assembly (5), a drive motor (6), and a transmission structure, wherein
the metal flywheel (1) rotates around the plastic bottom plate (3);
the metal ring (2) is connected to the metal flywheel (1);
the drive motor (6) is installed on the plastic bottom plate (3)
the magnetic tile (4) is installed on the circular movement assembly (5);
the circular movement assembly (5) is rotatably installed around a rotating shaft;
a worm screw (9) is disposed at an output end of the drive motor (6), and the transmission structure is connected between the worm screw (9) and the circular movement assembly (5);
the drive motor (6) drives, by using the transmission structure, the circular movement assembly (5) to rotate around the rotating shaft, to drive the magnetic tile (4) to move, wherein movement of the magnetic tile (4) comprises a movement component in a radial direction; and
a plurality of integrated flywheel magnetic resistance regulating systems can be connected in a cascading or parallel manner, or the integrated flywheel magnetic resistance regulating system and another flywheel other than the metal flywheel (1) can be connected in a cascading or parallel manner.
The integrated flywheel magnetic resistance regulating system according to claim 1, characterized in that the transmission structure comprises: a reducer casing (22) and a connecting rod assembly (7); and
the drive motor (6) is connected to the reducer casing (22) by using the worm screw (9), and drives the connecting rod assembly (7) by using the reducer casing (22), to drive the circular movement assembly (5)
The integrated flywheel magnetic resistance regulating system according to claim 2, characterized in that a worm wheel (10) is disposed on the plastic bottom plate (3); the worm wheel (10) is connected to the worm screw (9); the connecting rod assembly (7) is connected to the magnetic tile (4);
the transmission structure further comprises: a gear rack (21), wherein the gear rack (21) is connected to the reducer casing (22);
the transmission structure further comprising: a shaft (12), wherein the shaft (12) is connected to the plastic bottom plate (3) by using a bearing; and
the circular movement assembly (5) is installed on the plastic bottom plate (3).
The integrated flywheel magnetic resistance regulating system according to claim 3, characterized by comprising: a flange plate (11), wherein the plastic bottom plate (3) is connected to the shaft (12) by using the flange plate (11);
there are a plurality of magnetic tiles (4);
there are a plurality of circular movement assemblies (5); and
an output gear (23) is disposed on the reducer casing (22); the output gear (23) is connected to the gear rack (21).
The integrated flywheel magnetic resistance regulating system according to claim 2, characterized by comprising: a gear assembly, wherein
the gear assembly drives the circular movement assembly (5);
the gear assembly comprises a plurality of gears that are engaged with each other;
the connecting rod assembly (7) comprises: a first connecting rod and a second connecting rod;
the first connecting rod and the second connecting rod are separately and movably connected to the circular movement assembly (5);
the first connecting rod and the second connecting rod are installed on a same side of the circular movement assembly (5); or the first connecting rod and the second connecting rod are respectively installed on two sides of the circular movement assembly (5);
a limiting block (8) is disposed on the circular movement assembly (5);
a worm wheel (10) is disposed on the worm screw (9); and
the worm screw (9) is connected to the drive motor (6).
The integrated flywheel magnetic resistance regulating system according to claim 1, characterized by comprising: a PCB (205), wherein
the transmission structure and the PCB (205) are both installed on the plastic bottom plate (3);
the transmission structure comprises: a deceleration assembly and a lead screw assembly;
the drive motor (6), the deceleration assembly, the lead screw assembly, and the circular movement assembly (5) are sequentially connected;
a protective circuit for motor operation is disposed on the PCB (205), and the protective circuit for motor operation is connected to the drive motor (6);
the lead screw assembly comprises a lead screw (213) and an adjustment nut; the deceleration assembly comprises a worm wheel (10) and the worm screw (9), the worm screw (9) is fixedly connected to the drive motor (6) in a circumferential direction, and the worm wheel (10) is fixedly connected to the lead screw (213) in a circumferential direction;
the adjustment nut forms a sliding block (215), and the sliding block (215) is connected to the circular movement assembly (5) by using a disposed draw cord;
the metal flywheel (1) is provided with a first accommodating slot and a second accommodating slot that communicate with each other; the drive motor (6) and the lead screw assembly are respectively installed in the first accommodating slot and the second accommodating slot, and a guiding surface for the sliding block (215) is formed on a slot wall surface of the second accommodating slot;
a first bearing (214) is disposed between the lead screw (213) and the metal flywheel (1); a flange plate (11) is further firmly installed on the metal flywheel (1);
the drive motor (6) is firmly installed on the plastic bottom plate (3) by using a disposed motor pressing block (209);
the draw cord comprises a steel wire draw cord (206);
the plastic bottom plate (3) comprises a first cover body (201) and a second cover body (202) that are firmly connected; a ring-shaped hole is formed at a radially outer end after the first cover body (201) and the second cover body (202) are assembled, and a sliding space for the magnetic tile (4) is formed in the ring-shaped hole; and
a copper bush (208) and a steel bush (207) are further disposed in the ring-shaped hole; or a copper bush (208) instead of a steel bush (207) is further disposed in the ring-shaped hole; a spring (217) is further disposed between the first cover body (201) and the second cover body (202).
The integrated flywheel magnetic resistance regulating system according to claim 6, characterized in that the first bearing (214) is disposed between the lead screw (213) and the plastic bottom plate (3);
the flange plate (11) is firmly installed on the plastic bottom plate (3); and the drive motor (6) is firmly installed on the plastic bottom plate (3) by using the disposed motor pressing block (209).
The integrated flywheel magnetic resistance regulating system according to claim 7, characterized in that the protective circuit for motor operation comprises an MCU control circuit, a motor starting/stopping circuit, an external interface circuit, and a status display circuit;
a control signal output port of the MCU control circuit is connected to a control signal input port of the motor starting/stopping circuit; a display output port of the MCU control circuit is connected to a display input port of the status display circuit;
an external signal output port of the external interface circuit is separately connected to a first external signal input port of the MCU control circuit and a second external signal input port of the motor starting circuit;
the MCU control circuit comprises an MCU piece; an up port and a down port that are comprised in the MCU piece both form the control signal output port; a light-emitting diode (LED) port comprised in the MCU piece forms the display output port;
a VCC port and a GND port that are comprised in the MCU piece both form the first external signal input port;
the MCU control circuit further comprises a position sensor RW1, a temperature sensor RT1, a temperature sensor RT2, a capacitor C1, and a resistor R9;
the position sensor RW1 comprises a slide rheostat TAP; the MCU piece further comprises an A1 port and a Temp port;
a plurality of external signal output ports comprise a fifth port, a fourth port, and a third port;
the VCC port is separately connected to one end of the capacitor C1, one end of a fixed end of the slide rheostat TAP, the fifth port, one end of the temperature sensor RT1, and one end of the temperature sensor RT2; the A1 port is separately connected to a sliding end of the slide rheostat TAP and the fourth port; the GND port is separately connected to the other end of the capacitor C1, the other end of the fixed end of the slide rheostat TAP, and the third port, and the GND port is grounded; the Temp port is separately connected to the other end of the temperature sensor RT1, the other end of the temperature sensor RT2, and one end of the resistor R9; the other end of the resistor R9 is grounded.
The integrated flywheel magnetic resistance regulating system according to claim 6, characterized in that the status display circuit comprises a resistor R7, a resistor R8, a light emitting diode LED 1, and a light emitting diode LED 2; a plurality of LED ports comprise an LED1 port and an LED2 port;
a positive electrode of the LED1 port, a positive electrode of the resistor R7, and a positive electrode of the light emitting diode LED 1 are sequentially connected, and a negative electrode of the light emitting diode LED 1 is grounded; a positive electrode of the LED2 port, a positive electrode of the resistor R8, and a positive electrode of the light emitting diode LED 2 are sequentially connected, and a negative electrode of the light emitting diode LED 2 is grounded;
the motor starting/stopping circuit comprises a optocoupler PC1, an optocoupler PC2, a switching transistor Q1, a switching transistor Q2, a diode D1, a diode D2, a capacitor C2, a voltage dependent resistor RV1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, and a resistor R6; a plurality of external signal output ports further comprise a second port and a first port;
an up port, the resistor R5, and a light projector PC1A of the optocoupler PC1 are sequentially connected and then grounded; a down port, the resistor R6, and a light projector PC2A of the optocoupler PC2 are sequentially connected and then grounded;
one end of the drive motor (6) is separately connected to one end of the resistor R3, one end of the voltage dependent resistor RV1, one end of the capacitor C2, one end of the resistor R4, and the second port; the other end of the drive motor (6) is separately connected to the other end of the voltage dependent resistor RV1, the other end of the capacitor C2, a collector of the switching transistor Q1, and an emitter of the switching transistor Q1;
the other end of the resistor R3 is connected to one end of a light receptor PC1B of the optocoupler PC1, and the other end of the light receptor PC1B is separately connected to one end of the resistor R1 and a base of the switching transistor Q1; the other end of the resistor R1 is separately connected to the emitter of the switching transistor Q1 and a positive electrode of the diode D1; a negative electrode of the diode D1 is separately connected to a positive electrode of the diode D2 and the first port;
the other end of the resistor R4 is connected to one end of a light receptor PC2B of the optocoupler PC2, and the other end of the light receptor PC2B is separately connected to a base of the switching transistor Q2 and one end of the resistor R2; the other end of the resistor R2 is separately connected to a collector of the switching transistor Q2 and a negative electrode of the diode D2; and
the lead screw assembly is disposed in any one of following manners:
the lead screw (213) is connected to the deceleration assembly, and the adjustment nut is connected to the magnetic tile (4); and

the adjustment nut is connected to the deceleration assembly, and the lead screw (213) is connected to the magnetic tile (4).
The integrated metal flywheel magnetic resistance regulating system according to claim 1, characterized in that the integrated metal flywheel magnetic resistance regulating system further comprises: a PCB (126), a socket (127), a worm wheel (202), a first gear (122), a second gear (123), and a gear rack (21), wherein
the PCB (126) is connected to the socket (127), the drive motor (6) is electrically connected to the PCB (126), and an external power supply supplies power to the PCB (126) and the drive motor (6) through the socket (127);
the drive motor (6) is connected to the worm screw (9), the worm screw (9) is connected to the worm wheel (202), the worm wheel (202), the first gear (122), and the second gear (123) are connected level by level, the worm screw (9), the worm wheel (202), the first gear (122), and the second gear (123) form a gear set, and the output end of the drive motor (6) drives, by using the gear set, the gear rack (21) to change a position;
the gear rack (21) is hard connected to the connecting rod assembly (7), the connecting rod assembly (7) is connected to the magnetic tile (4), and movement of the gear rack (21) drives a fixed shaft of the magnetic tile to rotate;
the gear rack (21) and a movement part (602) of a position sensor are fixed, a fixed part (601) of the position sensor is welded onto the PCB (126), movement of the gear rack (21) drives the movement part (602) and the fixed part (601) to relatively move, to change a resistance of the position sensor, the position sensor outputs an electrical signal of a resistance change to the PCB (126), the electrical signal is fed back to an external controller through the socket (127), and a position of the magnetic tile has a unique determined relationship with the resistance of the position sensor; and
an external signal is received through the socket (127), the resistance of the position sensor is determined by using an MCU on the PCB (126), and the PCB controls forward and reverse rotation of the motor, to drive the magnetic tile (4) to change a position.
The integrated metal flywheel magnetic resistance regulating system according to claim 10, characterized by comprising a display screen, electrically connected to the PCB (126), and displaying a rotating speed of a flywheel based on a current value and a damping value generated in a current state.
The integrated metal flywheel magnetic resistance regulating system according to claim 10, characterized in that a wireless chip is disposed on the PCB (126), the wireless chip is connected to an external device, and controls a position change of the magnetic tile (4) by using the external device.
The integrated metal flywheel magnetic resistance regulating system according to claim 5, characterized in that the other end of the first connecting rod and the other end of the second connecting rod are connected to a gear, an outer circumference of the gear comprises a gear tooth part and a plane part, the gear tooth part is engaged with a component for transmission, the gear is continuously driven to forward and reversely rotate, to drive the first connecting rod and the second connecting rod to separately drive the circular movement assembly (5) to swing back and forth, so that the magnetic tile (4) on the circular movement assembly (5) gets close to and away from the metal flywheel (1), and the limiting block (8) is disposed on a maximum stroke of an edge of the gear tooth part.
The integrated metal flywheel magnetic resistance regulating system according to claim 1, characterized in that the metal flywheel (1) is divided into two parts: a stator and a rotor, the stator comprises a framework (131) and a coil (132), the coil (132) is wound on the framework (131), the framework (131) and the shaft (134) are fixed together, and the rotor is a magnet (133), and is fixed on the metal flywheel (1); and
the metal flywheel is concentrically disposed on a center shaft (134) and is movably connected to the center shaft (134), when the metal flywheel (1) rotates, the magnet (133) also rotates together, the rotation of the magnet (133) enables an electric potential be generated inside the fixed coil (132) to generate electricity, and generated electric energy supplies power to the inside of the integrated metal flywheel magnetic resistance regulating system, or supplies power to the outside through an interface.
A combined device, characterized by comprising the integrated flywheel magnetic resistance regulating system according to any one of claims 1 to 14, wherein a plurality of integrated flywheel magnetic resistance regulating systems are connected in a cascading or parallel manner; and/or the integrated flywheel magnetic resistance regulating system and another flywheel other than a metal flywheel (1) are connected in a cascading or parallel manner.