TWM617872U - Electronically controlled resistance exercise bike - Google Patents

Abstract

This creation is an electronically controlled resistance exercise bike. By setting a stepping motor as the source of resistance, and using sensing components and controllers as adjustment means, the user can control the change of the output voltage to control the resistance of the stepping motor; and when When the user wants to set the resistance to a fixed value as the exercise target, the resistance control module obtains a speed value through the sensing component, and changes the signal output to the driver according to the speed value, thereby adjusting the current supplied by the driver to the stepping motor , The resistance can be stabilized at a fixed value under the condition of different rotation speeds, allowing users to achieve specific motion effects through this creation, and this creation can divide the resistance into hundreds of segments to adjust, allowing users to more closely Adjust the size of the resistance according to your own needs to achieve the most appropriate exercise effect.

Description

Electronically controlled resistance exercise bike

This creation is related to a kind of sporting goods, especially an electronically controlled resistance exercise bike.

The exercise bike is one of the popular sports products in recent years, so users do not need to actually go out. By using the exercise bike, they can achieve the same effect as riding a bicycle outdoors; in bad weather or other situations that are not suitable for going out, The amount of exercise that can be maintained by the user keeps the body healthy.

One of the common exercise bikes is a magnetron exercise bike. The existing magnetron exercise bikes on the market usually contain a magnet and a flywheel. The flywheel is a cast iron flywheel with aluminum rim or an aluminum flywheel. The magnetic field cutting of the magnet and the flywheel generates the resistance of the existing magnetron exercise bike. By changing the distance between the magnet and the flywheel, the user can adjust the resistance of the existing magnetron exercise bike to achieve different intensity exercise effects .

However, the existing magnetron exercise bike system has the following disadvantages: when the user wants to fix the resistance value of the existing magnetron exercise bike for exercise, when the user pedals faster, the speed of the flywheel increases, which will cause the magnet and the The resistance generated by the magnetic field cutting of the flywheel rises accordingly, and the user cannot stabilize the resistance of the existing magnetron exercise bike to a fixed value to achieve the desired exercise effect.

In order to solve the problem that the increase in the rotation speed of the flywheel in the existing magnetron exercise bike will cause the resistance generated by the magnetic field cutting of the magnet and the flywheel to increase, the user cannot stabilize the resistance value of the existing magnetron exercise bike. A fixed value problem, the purpose of this creation is to provide an exercise bike that provides resistance by installing a stepping motor, and can stabilize the resistance at a fixed value regardless of the rotation speed.

The electronically controlled resistance exercise bike proposed in this creation to solve the technical problem includes: A frame A flywheel transmission module includes a rotating wheel, a motor group and a transmission assembly; the rotating gear train is arranged on the frame and can be driven to rotate relative to the frame; the motor group includes a stepping motor and A driver, the driver is electrically connected to the stepping motor, the stepping motor includes a motor body, a rotating shaft, a permanent magnet and a plurality of coils, the rotating shaft is rotatably arranged on the motor body; the permanent magnet is arranged on The rotating shaft can rotate synchronously with the rotating shaft; the plurality of coils are arranged in the motor body and surround the permanent magnet; the transmission assembly is arranged on the frame and connects the rotating wheel and the rotating shaft of the stepping motor, The rotating wheel drives the rotating shaft of the stepping motor to rotate through the transmission assembly. ； A sensing component for detecting the rotation speed of the rotating wheel; and A controller comprising a resistance control module, the resistance control module is electrically connected to the driver of the motor set and the sensing component, the controller can adjust the voltage output by the resistance control module to the driver, To control the power of the stepping motor; the resistance control module can also obtain a rotation speed value of the rotating wheel through the sensing component, and adjust the current supplied by the driver to the stepping motor according to the rotation speed value.

The electronically controlled resistance exercise bike, wherein the transmission component includes a first power transmission component and a second power transmission component, and the transmission component includes a first wheel and a second wheel that are coaxially combined The first power transmission member is sleeved on the rotating wheel and the first wheel, the second power transmission member is sleeved on the second wheel and a driving wheel coaxially provided on the rotating shaft of the stepping motor.

In the electronically controlled resistance exercise bike, the outer diameter of the first wheel of the transmission assembly is smaller than the outer diameter of the second wheel.

The electronically controlled resistance exercise bike, wherein the first power transmission member and the second power transmission member are respectively a belt

In the electronically controlled resistance exercise bike, the flywheel transmission module includes an idler, the idler is arranged on the frame, and the idler is against the first power transmission member.

The electronically controlled resistance exercise bike, wherein the sensing component includes a magnet and a magnetic reed sensor, the magnet is arranged on the rotating wheel, the magnetic reed sensor is arranged on the frame, and the resistance The control module is electrically connected with the magnetic reed sensor of the sensing assembly; the magnet is approached or far away from the magnetic reed sensor along with the rotation of the rotating wheel, so that the magnetic reed sensor is turned on or off.

The efficiency gains obtained by the technical means of this creation are: 1. The electronically controlled resistance exercise bike created by this invention uses the stepping motor as the resistance source, and uses the sensing component and the controller as the adjustment means. The resistance control module of the controller is obtained through the sensing component A rotation speed value of the rotating wheel, the resistance control module will change the signal output to the driver according to the rotation speed value, so as to adjust the size of the current supplied by the driver to the stepping motor. Next, the resistance is stabilized at a fixed value, so that the user can achieve a specific exercise effect through this creation. 2. The electronically controlled resistance exercise bike of this creation uses the stepping motor as the source of resistance. The resistance is changed by adjusting the current supplied by the driver to the stepping motor. The resistance can be divided into hundreds of segments. Compared with the existing magnetic exercise bike, the resistance can only be adjusted in about thirty-two segments at most. This creation allows the user to adjust the resistance to meet their own needs and achieve the most appropriate exercise effect.

In order to understand the technical features and practical effects of this creation in detail, and to implement it in accordance with the creation content, the preferred embodiment shown in the figure is further described in detail as follows:

As shown in FIG. 1, the electronically controlled resistance exercise bike of the preferred embodiment of the present creation includes a frame 10, a flywheel transmission module 20, two pedal assemblies 30, a sensing assembly and a controller, in which:

As shown in Figure 1, the frame 10 includes a base, a head tube, a handle, a tube assembly, a pad, and two fixing pieces 11; the head tube extends upward from the front half of the base, and the handle is provided At the end of the head tube away from the base; the seat tube assembly includes a reinforcement tube and a seat tube, the reinforcement tube extends rearward from the head tube, the seat tube is arranged at the end of the reinforcement tube away from the head tube, the seat cushion It is arranged at one end of the seat tube away from the base; the two fixing pieces 11 are spaced apart, and the two fixing pieces 11 respectively extend downward from the left and right sides of the seat tube assembly to the base, and are combined with the base .

As shown in FIGS. 2 to 7, the flywheel transmission module 20 includes a rotating wheel 21, a pedal shaft 22, a transmission assembly 23, and a motor group 24; as shown in FIG. 3, the pedal shaft 22 penetrates the The two fixed pieces 11 of the frame 10, the rotating wheel 21 is provided on the frame 10 through the pedal shaft 22, and can be driven by the pedal shaft 22 to rotate relative to the frame 10; as shown in FIG. 3, the transmission assembly 23 is provided on the frame 10 and can rotate relative to the frame 10. As shown in FIGS. 3 and 4, the transmission assembly 23 includes a first wheel 231 and a second wheel 232 that are coaxially combined, and a The first power transmission member 25, a second power transmission member 26 and an idler gear 27, the outer diameter of the first wheel 231 is smaller than the outer diameter of the second wheel 232.

As shown in FIG. 7, the motor set 24 includes a driver 240 (not shown in FIGS. 1 to 6) and a stepping motor 241. The driver 240 is electrically connected to the stepping motor 241. As shown in FIG. 3, the step The feed motor 241 includes a motor body 242, a rotating shaft 243, a permanent magnet and a plurality of coils. The rotating shaft 243 is rotatably arranged on the motor body 242; the permanent magnet is arranged on the rotating shaft 243 and can be synchronized with the rotating shaft 243 Rotation; the plurality of coils are provided in the motor body 242, and surround the permanent magnet; as shown in Figures 3 and 5, the motor set 24 also includes a driving wheel 244, the driving wheel 244 is coaxial with the shaft 243 The ground is set at one end of the rotating shaft 243, and the outer diameter of the driving wheel 244 is larger than the outer diameter of the rotating shaft 243.

As shown in FIGS. 3 and 4, the first power transmitting member 25 is a belt, and the first power transmitting member 25 is sleeved on the rotating wheel 21 and the first wheel 231, as shown in FIGS. 3 and 5. The second power transmission member 26 is a belt, and the second power transmission member 26 is sleeved on the second wheel 232 and the driving wheel 244 of the motor set 24, and the transmission assembly 23 connects the rotating wheel 21 and The rotating shaft 243 of the stepping motor 241; in this preferred embodiment, the first power transmission member 25 and the second power transmission member 26 adopt belts to transmit power, but in fact the first power transmission member 25 and the The second power transmission member 26 can also adopt a chain; as shown in FIGS. 2, 3, and 6, the idler 27 is provided on one of the fixing pieces 11 of the frame 10, and as shown in FIG. 6, the idler The wheel 27 abuts against the first power transmission member 25, can adjust the tension of the first power transmission member 25, and prevent the first power transmission member 25 from vibrating to affect the transmission effect.

As shown in Figures 1 and 2, each of the pedal assemblies 30 includes a pedal and a pedal crank. The pedal cranks of the two pedal assemblies 30 are respectively provided at both ends of the pedal shaft 22, and the two pedals are respectively combined with the two pedals. The pedal crank is far away from one end of the pedal shaft 22; when the user steps on the two pedals, the pedal shaft 22 rotates and drives the rotating wheel 21 to rotate relative to the frame 10, and the rotating wheel 21 is driven by the transmission assembly 23 The rotating shaft 243 of the stepping motor 241 rotates, and the permanent magnet rotates synchronously. The stepping motor 241 is supplied with current through the driver 240, so that the coils in the motor body 242 generate a magnetic field. This creation uses the plurality of coils The magnetic field generated by energization and the force between the permanent magnet serve as the resistance of the electronically controlled resistance exercise bike.

The sensing component is used to detect the rotation speed of the rotating wheel 21; as shown in FIGS. 2 and 3, the sensing component includes a magnetic reed sensor 41 and a magnet 42, the magnet 42 is disposed on the rotating wheel 21 The magnetic reed sensor 41 is arranged on one of the fixed pieces 11 of the frame 10, and the magnet 42 is moved closer to or away from the magnetic reed sensor 41 with the rotation of the rotating wheel 21, so that the magnetic reed sensor 41 is opened or Close; In the present preferred embodiment, the rotation speed of the rotating wheel 21 is detected by the number of opening and closing times of the reed sensor 41 within a fixed time, and in fact, the current contact type rotation speed can also be used The sensor of the meter, or the method of using a laser tachometer or an infrared tachometer to detect the rotation speed of the rotating wheel 21, is not limited by this preferred embodiment.

The controller includes a resistance control module 50. As shown in FIG. 7, the resistance control module 50 is electrically connected to the reed sensor 41 of the sensing assembly and the driver 240 of the motor set 24; the resistance control module The group 50 obtains a rotation speed value of the rotating wheel 21 through the number of opening or closing times of the magnetic reed sensor 41 of the sensing component within a fixed time, and the resistance control module 50 changes and outputs to the driver according to the rotation speed value. The signal 240 is used to adjust the current supplied by the driver 240 to the stepping motor 241.

The electronically controlled resistance exercise bike uses the stepping motor 241 as the resistance source, and uses the controller to stabilize the resistance. When the user’s pedaling speed is too fast, the resistance control module 50 gains greater gains through the sensing component. According to the rotation speed value, the resistance control module 50 reduces the current supplied by the driver 240 to the stepping motor 241 according to the rotation speed value, so that the size of the magnetic field generated by the coils in the motor body 242 is reduced , So that the resistance of the electronically controlled resistance exercise bike can be stabilized at a fixed value, and the resistance will not increase due to the excessively fast speed; compared with the existing magnetic control exercise bike, when the speed of the flywheel is increased, the magnet and the The resistance generated by the magnetic field cutting of the flywheel increases, and the user cannot stabilize the resistance of the existing magnetron exercise bike to a fixed value. This creation can stabilize the resistance to a fixed value regardless of the rotation speed, so that the user can Through this creation, the required movement effect is achieved.

The electronically controlled resistance exercise bike uses the stepper motor 241 as the source of resistance. The controller can adjust the voltage output from the resistance control module 50 to the driver 240 to change the driver 240 to the stepper. The current size of the motor 241, the controller uses this to control the power of the stepping motor 241, changing the size of the resistance provided by the stepping motor 241, the resistance can be divided into hundreds of segments to adjust, compared with the existing The magnetron exercise bike adjusts the resistance by changing the distance between the flywheel and the magnet. At most, the resistance can only be divided into about thirty-two segments for adjustment. This creation allows users to adjust the resistance to suit their own needs. , To achieve the most appropriate exercise effect.

The above are only preferred embodiments of this creation, and do not impose any formal restrictions on this creation. Any person with ordinary knowledge in the relevant technical field can use this creation without departing from the scope of the technical solution proposed in this creation. The equivalent embodiments that are partially changed or modified in the technical content disclosed by the creation, and do not deviate from the content of the technical solution of the creation, are still within the scope of the technical solution of the creation.

10: Frame 11: fixed piece 20: Flywheel drive module 21: Turn the wheel 22: Pedal shaft 23: Transmission components 231: first round 232: second round 24: Motor group 240: drive 241: stepping motor 242: Motor body 243: Hinge 244: Drive Wheel 25: The first power transmission part 26: The second power transmission part 27: Idler 30: Pedal assembly 41: Reed sensor 42: Magnet 50: Resistance control module

Fig. 1 is a perspective view of the appearance of a preferred embodiment of this creation. Fig. 2 is a partial external view of the preferred embodiment of the creation. Figure 3 is a partial rear side view of the preferred embodiment of this creation. Fig. 4 is a perspective view of the flywheel transmission module of the preferred embodiment of the invention. Fig. 5 is another perspective view of the flywheel transmission module of the preferred embodiment of the invention. Fig. 6 is a side view of the flywheel transmission module of the preferred embodiment of the invention. FIG. 7 is a block diagram of the resistance control module, the magnetic reed sensor and the motor group of the preferred embodiment of this creation.

10: Frame

11: fixed piece

20: Flywheel drive module

21: Turn the wheel

22: Pedal shaft

23: Transmission parts

24: Motor group

241: stepping motor

25: The first power transmission part

26: The second power transmission part

27: Idler

30: Pedal assembly

41: Reed sensor

42: Magnet

Claims (8)

An electronically controlled resistance exercise bike, which contains: A frame A flywheel transmission module includes a rotating wheel, a motor group and a transmission assembly; the rotating gear train is arranged on the frame and can be driven to rotate relative to the frame; the motor group includes a stepping motor and A driver, the driver is electrically connected to the stepping motor, the stepping motor includes a motor body, a rotating shaft, a permanent magnet and a plurality of coils, the rotating shaft is rotatably arranged on the motor body; the permanent magnet is arranged on The rotating shaft can rotate synchronously with the rotating shaft; the plurality of coils are arranged in the motor body and surround the permanent magnet; the transmission assembly is arranged on the frame and connects the rotating wheel and the rotating shaft of the stepping motor, The rotating wheel drives the rotating shaft of the stepping motor to rotate through the transmission assembly; A sensing component for detecting the rotation speed of the rotating wheel; and A controller comprising a resistance control module, the resistance control module is electrically connected to the driver of the motor set and the sensing component, the controller can adjust the voltage output by the resistance control module to the driver, To control the power of the stepping motor; the resistance control module can also obtain a rotation speed value of the rotating wheel through the sensing component, and adjust the current supplied by the driver to the stepping motor according to the rotation speed value. The electronically controlled resistance exercise bike according to claim 1, wherein the transmission assembly includes a first power transmission member and a second power transmission member, and the transmission assembly includes a first wheel and A second wheel, the first power transmission member is sleeved on the rotating wheel and the first wheel, the second power transmission member is sleeved on the second wheel and is coaxially provided on a drive of the rotating shaft of the stepping motor wheel. The electronically controlled resistance exercise bike according to claim 2, wherein the outer diameter of the first wheel of the transmission assembly is smaller than the outer diameter of the second wheel. The electronically controlled resistance exercise bike according to claim 2 or 3, wherein the first power transmission member and the second power transmission member are respectively a belt. The electronically controlled resistance exercise bike according to claim 4, wherein the flywheel transmission module includes an idler, the idler is arranged on the frame, and the idler is abutted against the first power transmission member. The electronically controlled resistance exercise bike of claim 5, wherein the sensing component includes a magnet and a magnetic reed sensor, the magnet is arranged on the rotating wheel, and the magnetic reed sensor is arranged on the frame, And the resistance control module is electrically connected with the magnetic reed sensor of the sensing assembly; the magnet approaches or moves away from the magnetic reed sensor with the rotation of the rotating wheel, so that the magnetic reed sensor is turned on or off. The electronically controlled resistance exercise bike according to any one of claims 1 to 3, wherein the sensing component includes a magnet and a magnetic reed sensor, the magnet is arranged on the rotating wheel, and the magnetic reed sensor Is arranged on the frame, and the resistance control module is electrically connected to the magnetic reed sensor of the sensing assembly; the magnet approaches or moves away from the magnetic reed sensor with the rotation of the rotating wheel, so that the magnetic reed is induced The device is turned on or off. The electronically controlled resistance exercise bike according to claim 2 or 3, wherein the flywheel transmission module includes an idler, the idler is arranged on the frame, and the idler is against the first power transmission Pieces.

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