CN117677426A - Body-building equipment, internal magnetic control device thereof, magnetic control device and resistance value calibration method thereof - Google Patents

Body-building equipment, internal magnetic control device thereof, magnetic control device and resistance value calibration method thereof Download PDF

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Publication number
CN117677426A
CN117677426A CN202280047208.1A CN202280047208A CN117677426A CN 117677426 A CN117677426 A CN 117677426A CN 202280047208 A CN202280047208 A CN 202280047208A CN 117677426 A CN117677426 A CN 117677426A
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CN
China
Prior art keywords
control device
magnetic control
housing
potentiometer
calibration
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CN202280047208.1A
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Chinese (zh)
Inventor
乔伟
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Ningbo Daokang Intelligent Technology Co ltd
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Ningbo Daokang Intelligent Technology Co ltd
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Priority claimed from CN202111225898.9A external-priority patent/CN113975711B/en
Priority claimed from CN202111225344.9A external-priority patent/CN113908485A/en
Application filed by Ningbo Daokang Intelligent Technology Co ltd filed Critical Ningbo Daokang Intelligent Technology Co ltd
Publication of CN117677426A publication Critical patent/CN117677426A/en
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/005—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using electromagnetic or electric force-resisters

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  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Adjustable Resistors (AREA)
  • Electromagnets (AREA)

Abstract

An exercise machine and an internal magnetic control device (100), a magnetic control device (100A) and a resistance calibration method thereof, wherein the internal magnetic control device (100) comprises a sliding block (20), a connecting rod (40), a magnetic element (50), a swinging arm (30) and a shell (10), two ends of the connecting rod (40) are respectively rotatably arranged at driven ends (32) of the sliding block (20) and the swinging arm (30), the magnetic element (50) is arranged at the outer side of the swinging arm (30), the shell (10) is provided with a central through hole (101), a shell space (102), a peripheral opening (103), an avoidance space (104) and a sliding rail (105), the shell space (102) is arranged at the outer side of the central through hole (101), the peripheral opening (103) is communicated with the shell space (102), the avoidance space (104) extends from the shell space (102) to the direction of the central through hole (101), the extending direction of the sliding rail (105) is consistent with the radial direction of the shell (10), a pivoting end (31) of the swinging arm (30) is rotatably arranged at the edge of the shell (10), the sliding block (20) is slidably arranged at the edge of the sliding rail (105), and the sliding block (20) is allowed to slide to be extended to the shell (10) by the sliding space (104).

Description

Body-building equipment, internal magnetic control device thereof, magnetic control device and resistance value calibration method thereof Technical Field
The invention relates to the field of fitness equipment, in particular to fitness equipment, an internal magnetic control device, a magnetic control device and a resistance value calibration method thereof.
Background
In recent years, with the continuous development of social economy and the continuous improvement of health consciousness of people, more and more people choose to perform physical exercises in families or gymnasiums, wherein exercise equipment such as spinning, elliptical machines, rowing machines and the like for aerobic exercise projects is the first choice of people to perform physical exercises. A common feature of such exercise machines is to provide an inner magnetic control device and a flywheel surrounding the outer side of the inner magnetic control device, wherein the flywheel cuts the magnetic induction lines of the inner magnetic control device to obtain a load when the flywheel is driven to rotate on the outer side of the inner magnetic control device. In order to facilitate the user to obtain different exercise effects by means of the exercise machine, the load of the flywheel is allowed to be adjusted in such a way that the internal magnetic control means provide at least one swing arm, which is provided with a magnetic element, the distance between the magnetic element and the flywheel being adjusted by driving the swing arm to swing, thereby adjusting the load of the flywheel. Specifically, when the swing arm swings to bring the magnetic element away from the flywheel, the load of the flywheel is reduced, and correspondingly, when the swing arm swings to bring the magnetic element close to the flywheel, the load of the flywheel is increased. How to drive the swing arm to swing over a larger range while allowing the load of the flywheel to be adjusted over a larger range is a technical problem addressed by the inventors of the present invention.
In another exercise apparatus, a magnetic control device, a flywheel and a driving device are provided, the magnetic control device provides a magnetic field environment, the flywheel is drivably connected to the driving device, and when a user drives the flywheel to rotate in the magnetic field environment of the magnetic control device through the driving device, the flywheel obtains a load by cutting a magnetic induction line of the magnetic control device. The load of the flywheel determines the resistance value which is paid by a user when driving the driving device, wherein the smaller the load of the flywheel is, the smaller the resistance value which is paid by the user when driving the driving device is, the more labor-saving the driving device is driven by the user, and conversely, the larger the load of the flywheel is, the larger the resistance value which is paid by the user when driving the driving device is, the more labor-saving the driving device is driven by the user, so the resistance value which is paid by the user when driving the driving device can be adjusted by adjusting the load of the flywheel.
The magnetic control device further provides at least one arm element, at least one magnetic element arranged on the arm element, at least one driving part for driving the arm element and at least one feedback potentiometer for controlling the driving part, when the driving part adjusts the distance between the magnetic element and the flywheel by driving the arm element, the resistance value of the feedback potentiometer changes, so that the working state of the driving part is controlled by the feedback potentiometer according to the resistance value change, and the distance between the magnetic element and the flywheel is controlled by controlling the position where the driving part drives the arm element to move.
It can be seen that the position of the magnetic element of the magnetic control device determines the amount of magnetic induction lines of the magnetic control device that the flywheel cuts when rotating, and thus determines the resistance value that the user pays when driving the driving device. When the existing magnetic control device has the problem, the consistency of a batch of magnetic control devices is poor due to errors generated by the feedback potentiometer and errors generated in the process of integrating the feedback potentiometer into the magnetic control device. Specifically, the starting point position and the ending point position of the resistance value of the feedback potentiometer have errors and the error range is between 0% and 5%, so that the starting point position and the ending point position of the magnetic element have errors and the error range is between 0% and 5%, and the maximum magnetic resistance difference of the magnetic control device reaches 10% to 20%, which seriously affects the consistency of a batch of the magnetic control device. Although the error can be reduced by calibrating the resistance value of the feedback potentiometer, the feedback potentiometer is integrated inside the magnetic control device, and a lot of magnetic group differences of the magnetic control device must be detected after the magnetic control device is assembled, at this time, even if a lot of magnetic group differences of the magnetic control device are detected, if the resistance value of the feedback potentiometer is to be calibrated, the magnetic control device must be disassembled, which not only results in lower production efficiency and calibration efficiency of the magnetic control device, but also causes errors of the feedback potentiometer again in the process of reassembling the magnetic control device after the resistance value of the feedback potentiometer is calibrated, so that the calibration effect is not obvious.
Disclosure of Invention
It is an object of the present invention to provide an exercise apparatus, an internal magnetic control device, a magnetic control device and a resistance calibration method thereof, wherein a slider of the internal magnetic control device is capable of driving at least one swing arm to swing when sliding along a track formed by a sliding rail, so as to adjust the distance between a set of magnetic elements arranged on the swing arm and a flywheel encircling the internal magnetic control device, thereby adjusting the load of the flywheel when being driven to rotate.
An object of the present invention is to provide an exercise apparatus, an internal magnetic control device, a magnetic control device and a resistance calibration method thereof, wherein a housing of the internal magnetic control device provides a avoiding space for avoiding the slider, so that the slider is allowed to have a larger stroke range, and the slider can drive the swing arm to swing in a larger swing range, and further adjust the load of the flywheel when the flywheel is driven to rotate in a larger load range.
It is an object of the present invention to provide an exercise apparatus and its internal magnetic control, magnetic control and its resistance calibration method, wherein the sliding travel of the slider can exceed 12mm and even reach 20mm, so that the slider has a larger travel range.
It is an object of the present invention to provide an exercise apparatus and an internal magnetic control device thereof, a magnetic control device and a resistance calibration method thereof, wherein the internal magnetic control device allows for the critical position of the slider to be calibrated without being disassembled, thereby enabling the production efficiency of the internal magnetic control device to be improved and the consistency of a batch of the internal magnetic control device to be easily controlled when the internal magnetic control device is mass-produced. For example, the internal magnetic control device allows for calibration of the resistive value initial position on the outside of the housing.
It is an object of the present invention to provide an exercise apparatus, an internal magnetic control device, a magnetic control device and a resistance calibration method thereof, wherein the internal magnetic control device provides a sliding potentiometer and a calibration potentiometer connected in series or in parallel, and the key position of the sliding block of the internal magnetic control device can be calibrated by fine tuning the calibration potentiometer. For example, the initial position of the resistance value of the internal magnetic control device can be calibrated by slightly rotating the calibration potentiometer.
It is an object of the present invention to provide an exercise apparatus, an internal magnetic control device, a magnetic control device and a resistance calibration method thereof, wherein the housing provides a calibration channel, and the calibration potentiometer corresponds to the calibration channel in the housing, so that the resistance initial position of the internal magnetic control device can be calibrated by rotating the calibration potentiometer through the calibration channel of the housing without disassembling the internal magnetic control device, which can greatly improve the resistance calibration efficiency of the internal magnetic control device.
It is an object of the present invention to provide an exercise apparatus and its internal magnetic control device, magnetic control device and its resistance calibration method, wherein the resistance calibration method can accurately calibrate the resistances of the magnetic control devices in batches.
It is an object of the present invention to provide an exercise apparatus and its internal magnetic control device, magnetic control device and its resistance calibration method, wherein the resistance calibration method can conveniently calibrate the resistances of the magnetic control devices in batches.
It is an object of the present invention to provide an exercise apparatus, and an internal magnetic control device, a magnetic control device, and a resistance calibration method thereof, wherein the resistance calibration method allows for convenient and accurate calibration of the resistance of the magnetic control device without dismantling the magnetic control device, such that the resistance calibration method not only can greatly improve the production efficiency and calibration efficiency of the magnetic control device, but also can greatly improve the consistency of the magnetic control devices in batches.
It is an object of the present invention to provide an exercise apparatus and its internal magnetic control device, magnetic control device and its resistance calibration method, wherein the resistance calibration method allows for calibrating the resistance of the magnetic control device externally of the magnetic control device, such that the magnetic control device does not need to be disassembled when calibrating the resistance of the magnetic control device.
It is an object of the present invention to provide an exercise apparatus, a magnetic control device and a resistance calibration method thereof, wherein the resistance calibration method provides a calibration potentiometer, and the resistance of a potential control unit of the magnetic control device is calibrated in a manner allowing fine adjustment of the resistance of the calibration potentiometer, so that the resistance of the magnetic control device is conveniently and accurately calibrated.
It is an object of the present invention to provide an exercise apparatus and an internal magnetic control device, a magnetic control device and a resistance calibration method thereof, wherein a housing of the magnetic control device provides a calibration channel through which the calibration potentiometer can be manipulated, such that the resistance calibration method allows fine tuning of the resistance of the calibration potentiometer outside the magnetic control device. For example, the calibration potentiometer may be rotated through the calibration channel of the housing to adjust the resistance of the calibration potentiometer to calibrate the resistance of the feedback potentiometer.
In accordance with one aspect of the present invention, there is provided an internal magnetic control device comprising:
a slide block;
at least one connecting rod;
at least one set of magnetic elements;
at least one swing arm, wherein the swing arm has a pivoting end and a driven end corresponding to the pivoting end, wherein a group of the magnetic elements are arranged outside the swing arm, and wherein opposite ends of the connecting rod are rotatably mounted on the driven end of the swing arm and the sliding block respectively; and
The shell is provided with a center perforation, a shell space, a peripheral opening, an avoidance space and a sliding rail, wherein the shell space is positioned outside the center perforation, the peripheral opening is communicated with the shell space, the avoidance space extends from the shell space to the direction of the center perforation, the extending direction of the sliding rail is consistent with the radial direction of the shell, the outer end of the sliding rail faces to the edge direction position of the shell, the inner end of the sliding rail faces to the avoidance space direction, the pivoting end of the swing arm is rotatably mounted on the edge of the shell, the sliding block is slidably mounted on the sliding rail, and at least one part of the sliding block is allowed to slide to the avoidance space of the shell.
According to one aspect of the invention, the slide rail extends to the avoidance space.
According to one aspect of the invention, the travel of the slider is greater than 12mm.
According to one aspect of the invention, the internal magnetic control device comprises two connecting rods, two groups of magnetic elements and two swing arms, wherein the pivoting ends of the two swing arms are adjacent, each group of magnetic elements is respectively arranged on the outer side of each swing arm, and the opposite ends of each connecting rod are respectively rotatably arranged on the driven end of each swing arm and each side part of the sliding block.
According to one aspect of the present invention, the housing includes a bottom case and a cover, the bottom case having a bottom case boss and a bottom case center hole formed at the bottom case boss, wherein the cover has a cover boss and a cover center hole formed at the cover boss, wherein the bottom case and the cover are mounted in such a manner that the bottom case boss of the bottom case and the cover boss of the cover are fitted to each other, such that the bottom case center hole of the bottom case and the cover center hole of the cover correspond to form the center hole of the housing, and the housing space and the peripheral opening are formed between the bottom case and the cover, wherein a side wall of the bottom case boss of the bottom case is recessed toward a direction of the bottom case center hole to form the escape space of the housing.
According to one aspect of the present invention, the housing includes a bottom case and a cover, the bottom case having a bottom case boss and a bottom case center hole formed in the bottom case boss, wherein the cover has a cover boss and a cover center hole formed in the cover boss, wherein the bottom case and the cover are mounted in such a manner that the bottom case boss of the bottom case and the cover boss of the cover are fitted to each other so that the bottom case center hole of the bottom case and the cover center hole of the cover correspond to form the center hole of the housing, and the case space and the peripheral opening are formed between the bottom case and the cover, wherein a side wall of the bottom case boss of the bottom case is recessed toward the bottom case center hole to form a part of the case space, and a side wall of the cover boss is recessed toward the cover center hole to form another part of the case space.
According to one aspect of the present invention, the internal magnetic control device further includes a potential control unit including a circuit board and a sliding potentiometer, wherein the circuit board is fixedly mounted to the housing and held in the housing space, wherein the sliding potentiometer further includes a potentiometer body and a slide bar slidably mounted to the potentiometer body, the potentiometer body is mounted to the circuit board, and the slide bar is mounted to the slide bar.
According to one aspect of the present invention, the potential control unit further comprises a calibration potentiometer, wherein the calibration potentiometer is mounted on the circuit board, and the calibration potentiometer and the sliding potentiometer are connected in series.
According to one aspect of the invention, the housing has a calibration channel, the calibration potentiometer corresponding to the calibration channel to calibrate the resistive initial position of the internal magnetic control device by operating the calibration potentiometer through the calibration channel.
In accordance with another aspect of the present invention, there is further provided an exercise apparatus comprising:
a machine frame;
a pedal device, wherein the pedal device is mounted to the equipment rack in a pedal manner;
A flywheel, wherein the flywheel is rotatably mounted to the equipment rack and is drivably connected to the tread device; and
an internal magnetic control device, wherein the internal magnetic control device further comprises:
a slide block;
at least one connecting rod;
at least one set of magnetic elements;
at least one swing arm, wherein the swing arm has a pivoting end and a driven end corresponding to the pivoting end, wherein a group of the magnetic elements are arranged outside the swing arm, and wherein opposite ends of the connecting rod are rotatably mounted on the driven end of the swing arm and the sliding block respectively; and
a housing, wherein the housing has a center perforation, a housing space, a peripheral opening, an avoidance space and a slide rail, the housing space is located in the outside of the center perforation, the peripheral opening communicates with the housing space, the avoidance space extends from the housing space to the direction of the center perforation, the extending direction of the slide rail coincides with the radial direction of the housing, and the outer end of the slide rail faces the edge direction position of the housing, the inner end of the slide rail extends toward the avoidance space direction, wherein the pivot end of the swing arm is rotatably mounted to the edge of the housing, the slider is slidably mounted to the slide rail, and at least a portion of the slider is allowed to slide to the avoidance space of the housing, wherein a mounting shaft of the equipment rack is mounted to the center perforation of the housing of the internal magnetic control device to mount the internal magnetic control device to the equipment rack, and the flywheel surrounds the outside of the internal magnetic control device.
According to another aspect of the present invention, there is provided a method for calibrating a resistance of a magnetic control device, wherein the method comprises the steps of:
(a) Measuring the actual power value of a flywheel in a rotating state at a target point, wherein the flywheel in the rotating state cuts a magnetic induction line of the magnetic control device to obtain a load; and
(b) And adjusting the resistance value of a calibration potentiometer of the magnetic control device so as to enable the actual power value of the flywheel to be consistent with the design power value of the flywheel corresponding to the target point.
According to one embodiment of the present invention, in the step (b), the resistance value of the calibration potentiometer is adjusted by rotating the calibration potentiometer.
According to one embodiment of the invention, in said step (b), the resistance of said calibration potentiometer inside said magnetic control means is calibrated outside said magnetic control means.
According to one embodiment of the present invention, in the step (b), a tool is allowed to apply force to the calibration potentiometer through a calibration hole of a housing of the magnetic control device to adjust a resistance value of the calibration potentiometer.
In accordance with another aspect of the present invention, there is further provided a magnetic control device comprising:
A circuit board;
the potential control unit comprises a feedback potentiometer and a calibration potentiometer, wherein the feedback potentiometer and the calibration potentiometer are connected through the circuit board, and the feedback potentiometer further comprises a potentiometer main body and a movable part movably arranged on the potentiometer main body; and
the magnetic control main body comprises a shell, at least one swing arm and at least one group of magnetic elements, wherein the pivoting end of the swing arm is rotatably arranged on the shell, one group of magnetic elements are arranged on the outer side of the swing arm, the circuit board is mounted on the shell, and the movable part of the feedback potentiometer is related to the swing arm.
According to one embodiment of the invention, the feedback potentiometer and the calibration potentiometer are connected in parallel.
According to one embodiment of the invention, the feedback potentiometer and the calibration potentiometer are connected in series.
According to one embodiment of the invention, the housing has a housing space, and a peripheral opening and a calibration channel communicating with the housing space, the circuit board, the potential control unit and the swing arm are respectively located in the housing space of the housing, and a set of the magnetic elements are open toward the peripheral edge of the housing, and the calibration potentiometer corresponds to the calibration channel of the housing.
According to one embodiment of the invention, the housing has a sliding rail, an extending direction of the sliding rail is consistent with a radial direction of the housing, wherein the magnetic control main body further comprises at least one sliding block and at least one connecting rod, the sliding block is slidably arranged on the sliding rail of the housing, opposite ends of the connecting rod are rotatably arranged on driven ends of the sliding block and the swinging arm respectively, and the sliding arm of the feedback potentiometer is arranged on the sliding block.
According to one embodiment of the invention, the magnetic control main body comprises two swing arms, two groups of magnetic elements and two connecting rods, the pivoting ends of the two swing arms are adjacent, each group of magnetic elements is respectively arranged on the outer side of each swing arm, and the opposite ends of each connecting rod are respectively rotatably arranged on the driven end of each swing arm and each side part of the sliding block.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following more particular description of embodiments of the present invention, as illustrated in the accompanying drawings. The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate the invention and together with the description serve to explain the invention. In the drawings, like reference numerals generally refer to like parts or steps.
FIG. 1 is a schematic view of an application environment of an inner magnetic control device according to a preferred embodiment of the present invention, illustrating a flywheel being wrapped around the outer side of the inner magnetic control device.
FIG. 2 is a perspective view of the internal magnetic control device according to the preferred embodiment of the present invention.
FIG. 3 is a perspective view of another view of the internal magnetic control device according to the above preferred embodiment of the present invention.
FIG. 4 is an exploded view of the internal magnetic control device according to the preferred embodiment of the present invention.
Fig. 5 is an enlarged schematic view of a portion of fig. 4.
FIG. 6 is an exploded view of another view of the internal magnetic control device according to the above preferred embodiment of the present invention.
FIG. 7 is a perspective view of a bottom shell of the inner magnetic control device according to the above preferred embodiment of the present invention.
FIG. 8 is a perspective view of a cover of the inner magnetic control device according to the preferred embodiment of the present invention.
FIG. 9 is a perspective view of a slider of the internal magnetic control device according to the preferred embodiment of the present invention.
FIG. 10 is a perspective view of another view of the slider of the internal magnetic control device according to the preferred embodiment of the present invention.
FIGS. 11A and 11B are schematic views showing the partial construction of the internal magnetic control device according to the above preferred embodiment of the present invention.
FIG. 12 is a schematic diagram of the resistance calibration principle of the internal magnetic control device according to the above preferred embodiment of the present invention.
Fig. 13 is a schematic perspective view of an exercise apparatus according to a preferred embodiment of the present invention, wherein the exercise apparatus is applied with the internal magnetic control device.
FIGS. 14A and 14B are perspective views of a magnetic control device according to a preferred embodiment of the present invention.
FIGS. 15A and 15B are respectively exploded views of the magnetic control device according to the above preferred embodiment of the present invention.
FIG. 16 is a perspective view showing an application state of the magnetic control device according to the above preferred embodiment of the present invention.
FIGS. 17A and 17B are schematic diagrams illustrating different application states of the magnetic control device according to the above preferred embodiment of the present invention.
FIG. 18 is a schematic diagram of a resistance calibration principle of the magnetic control device according to the above preferred embodiment of the present invention.
FIG. 19 is a schematic diagram showing another resistance calibration principle of the magnetic control device according to the above preferred embodiment of the present invention.
FIG. 20 is a schematic perspective view of a magnetic control device according to another preferred embodiment of the present invention.
FIG. 21 is an exploded view of the magnetic control device according to the preferred embodiment of the present invention.
FIG. 22 is a schematic view of the magnetic control device according to the preferred embodiment of the present invention.
Detailed Description
Hereinafter, example embodiments according to the present application will be described in detail with reference to the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application and not all of the embodiments of the present application, and it should be understood that the present application is not limited by the example embodiments described herein.
Fig. 1-12 illustrate an internal magnetic control device 100 according to a preferred embodiment of the present invention, wherein the internal magnetic control device 100 is configured to provide a magnetic field environment, and fig. 13 illustrates an exercise apparatus, wherein the exercise apparatus employs the internal magnetic control device 100 of the present invention.
It is worth mentioning that the exercise apparatus shown in fig. 13 implemented as an elliptical machine is only exemplary, and is not limiting to the specific type of exercise apparatus of the present invention. For example, in other examples of the invention, the exercise apparatus may also be a rowing machine, a spinning, or the like.
With continued reference to fig. 13, and with reference to fig. 1, the exercise apparatus includes an apparatus frame 200, a tread device 300, and a flywheel 400, wherein the tread device 300 is treadably mounted to the apparatus frame 200, wherein the flywheel 400 is rotatably mounted to the apparatus frame 200 and is drivingly connected to the tread device 300, and wherein the flywheel 400 surrounds the outside of the internal magnetic control device 100. Preferably, the internal magnetic control device 100 is mounted to the equipment rack 200 such that the relative positions of the internal magnetic control device 100 and the equipment rack 200 remain unchanged. When the user continuously steps on the stepping device 300 to drive the flywheel 400 to rotate relative to the equipment rack 200 and the inner magnetic control device 100, the flywheel 400 continuously cuts the magnetic induction line of the inner magnetic control device 100 to obtain a load, so that the user can achieve the purpose of body building.
It will be appreciated that the load achieved by the flywheel 400 when driven to rotate correlates to the amount of magnetic induction lines of the inner magnetic control device 100 that the flywheel 400 cuts, wherein the greater the amount of magnetic induction lines of the inner magnetic control device 100 that the flywheel 400 cuts when driven, the greater the load achieved by the flywheel 400, and the harder the user is stepping on the stepping device 300, and correspondingly, the less the amount of magnetic induction lines of the inner magnetic control device 100 that the flywheel 400 cuts when driven, the less the load achieved by the flywheel 400, and the more effort the user is stepping on the stepping device 300.
It should be noted that the load obtained when the flywheel 400 is driven to rotate is represented by the resistance value when the user steps on the stepping device 300, the larger the load obtained when the flywheel 400 is driven to rotate is, the larger the resistance value when the user steps on the stepping device 300 is, the smaller the load obtained when the flywheel 400 is driven to rotate is, and the smaller the resistance value when the user steps on the stepping device 300 is.
In order to meet the user's different demands on the load of the flywheel 400 of the exercise apparatus, the inner magnetic control device 100 of the present invention is configured to be able to adjust the position of the magnet wire with respect to the flywheel 400 such that the more the magnet wire of the inner magnetic control device 100 is positioned closer to the flywheel 400, the more the flywheel 400 cuts the magnet wire when driven, and conversely, the less the magnet wire of the inner magnetic control device 100 cuts the magnet wire when driven, the more the flywheel 400 cuts the magnet wire when driven, so that the resistance value of the user stepping on the stepping device 300 can be adjusted.
With continued reference to FIGS. 1-11B, the internal magnetic control device 100 includes a housing 10, a slider 20, at least one swing arm 30, at least one connecting rod 40, and at least one set of magnetic elements 50.
The housing 10 has a central through hole 101, a housing space 102, a peripheral opening 103, a relief space 104 and a slide rail 105, the housing space 102 is located outside the central through hole 101, the peripheral opening 103 is formed at the periphery of the housing 10, and the peripheral opening 103 communicates with the housing space 102, the relief space 104 extends from the housing space 102 toward the central through hole 101, the slide rail 105 is located in the housing space 102, and the extending direction of the slide rail 105 is consistent with the radial direction of the housing 10, so that the outer end 1051 of the slide rail 105 extends toward the edge direction of the housing 10, and the inner end 1052 of the slide rail 105 extends toward the relief space 104 of the housing 10. Preferably, the slide rail 105 is provided to extend to the escape space 104 of the housing 10.
The housing 10 allows the mounting shaft of the equipment rack 200 to penetrate and be held at the center hole 101 of the housing 10 to fixedly mount the internal magnetic control device 100 to the equipment rack 200, wherein the flywheel 400 surrounds the housing 10, and the peripheral opening 103 of the housing 10 faces the inside of the flywheel 400.
The slider 20 is slidably mounted to the slide rail 105 of the housing 10, and the slider 20 is allowed to slide to the escape space 104 of the housing 10, so that the slider 20 has a larger stroke range. For example, in this particular example of the internal magnetic control device 100 shown in FIGS. 1-11B, the travel of the slider 20 may exceed 12mm and may even reach 20mm.
Specifically, referring to fig. 11A and 11B, the slider 20 has a riding groove 21, wherein the sliding rail 105 of the housing 10 extends to the riding groove 21 of the slider 20 to allow the slider 20 to ride on the sliding rail 105 of the housing 10, so that the slider 20 can reliably slide along a track formed by the sliding rail 105 between the outer end 1051 and the inner end 1052 of the sliding rail 105 when the slider 20 is driven.
More specifically, with continued reference to fig. 11A and 11B, the slider 20 includes a slider body 22 and two slider arms 23, the two slider arms 23 integrally extending outwardly from one side of the slider body 22 to form the riding groove 21 between the slider body 22 and the two slider arms 23, wherein when the slider 20 is mounted to the slide rail 105 of the housing 10, the slide rail 105 extends to the riding groove 21 of the slider 20 such that the slider body 22 abuts the top surface of the slide rail 105 and each of the slider arms 23 abuts each of the sides of the slide rail 105, respectively, thus ensuring that the slider 20 reliably rides on the slide rail 105, thereby preventing the slider 20 from falling off the slide rail 105 as the slider 20 is driven to slide along the track formed by the slide rail 105.
The swing arm 30 has a pivoting end 31 and a driven end 32 corresponding to the pivoting end 31, wherein the outer side of the swing arm 30 faces the peripheral opening 103 of the housing 10, a set of the magnetic elements 50 are disposed on the outer side of the swing arm 30 to provide a magnetic field environment at the peripheral opening 103 of the housing 10, wherein the pivoting end 31 of the swing arm 30 is rotatably mounted to the edge of the housing 10, the driven end 32 of the swing arm 30 is rotatably mounted to one end of the connecting rod 40, and the other end of the connecting rod 40 is rotatably mounted to the slider 20, such that when the slider 20 is driven to slide along a track formed by the slide rails 105 of the housing 10, the slider 20 can be forced to the driven end 32 of the swing arm 30 by the connecting rod 40 to allow the swing arm 30 to swing around the pivoting end 31 of the swing arm 30 relative to the housing 10, thereby moving the outer side 103 of the swing arm 30 toward the peripheral opening 10 or away from the peripheral opening of the swing arm 10.
Specifically, when the slider 20 is driven to slide along the track formed by the slide rail 105 of the housing 10 from the outer end 1051 to the inner end 1052 of the slide rail 105, the slider 20 can pull the swing arm 30 to swing inward by the connecting rod 40, so that the swing arm 30 drives the magnetic element 50 to move in a direction away from the peripheral opening 103 of the housing 10. Accordingly, when the slider 20 is driven to slide along the track formed by the slide rail 105 of the housing 10 from the inner end 1052 to the outer end 1051 of the slide rail 105, the slider 20 can push the swing arm 30 to swing outward by the connecting rod 40, so that the swing arm 30 drives the magnetic element 50 to move toward a direction approaching the peripheral opening 103 of the housing 10.
Preferably, the swing arm 30 extends between the pivot end 31 and the driven end 32 in a curved manner so that the swing arm 30 is curved, and thus the shape of the outer side of the swing arm 30 is substantially the same as the shape of the periphery of the housing 10. Preferably, the magnetic element 50 is of a cambered surface type, and the shape of the inner side of the magnetic element 50 is identical to the shape of the outer side of the swing arm 30, so that the magnetic element 50 is reliably disposed on the outer side of the swing arm 30.
It should be noted that the manner in which the magnetic element 50 is disposed on the swing arm 30 is not limited in the internal magnetic control device 100 of the present invention, for example, the magnetic element 50 may be disposed on the outer side of the swing arm 30 by bonding, or the magnetic element 50 may be disposed on the outer side of the swing arm 30 by fitting.
It is also worth mentioning that the number of magnetic elements 50 in a set of magnetic elements 50 is not limited in the internal magnetic control device 100 of the present invention, for example, in this particular example of the internal magnetic control device 100 shown in fig. 1-11B, the number of magnetic elements 50 in a set of magnetic elements 50 is three, which are disposed outside of the swing arm 30 at a distance from each other.
With continued reference to fig. 1-11B, in this particular example of the internal magnetic control device 100 of the present invention, the internal magnetic control device 100 includes one of the sliders 20, two of the swing arms 30, two of the connecting rods 40, and two sets of the magnetic elements 50, wherein the two of the swing arms 30 are rotatably mounted to an edge of the housing 10 in such a manner that the pivoting ends 31 of the two of the swing arms 30 are adjacent, and the driven ends 32 of the two of the swing arms 30 extend to positions adjacent to the sliders 20, respectively, wherein one end of the two of the connecting rods 40 is rotatably mounted to the driven ends 32 of the two of the swing arms 30, respectively, and the other end of the two of the connecting rods 40 is rotatably mounted to each side of the sliders 20, respectively, wherein each set of the magnetic elements 50 is disposed outside of each of the swing arms 30, respectively.
Referring to fig. 11A and 11B, when the slider 20 is driven to slide along the track formed by the slide rail 105 of the housing 10 from the inner end 1052 to the outer end 1051 of the slide rail 105, the slider 20 pushes each of the swing arms 30 to swing outwards through each of the connection rods 40 respectively and synchronously, so that each of the swing arms 30 drives each of the sets of magnetic elements 50 to move toward the direction approaching the peripheral opening 103 of the housing 10 respectively, at this time, the distance between one set of magnetic elements 50 and the flywheel 400 is reduced, so that the amount of magnetic induction lines of the inner magnetic control device 100 cut is increased when the flywheel 400 is driven to rotate, thereby increasing the load obtained by the flywheel 400, so that the user is more hard to tread the stepping device 300; accordingly, when the slider 20 is driven to slide along the slide rail 105 of the housing 10 from the outer end 1051 to the inner end 1052 of the slide rail 105, the slider 20 pulls each of the swing arms 30 to swing inward by each of the connection rods 40 respectively and simultaneously so that each of the swing arms 30 drives each of the sets of the magnetic elements 50 to move away from the peripheral opening 103 of the housing 10 respectively, at which time the distance between one set of the magnetic elements 50 and the flywheel 400 is increased, so that the amount of magnetic induction lines cutting the inner magnetic control device 100 is reduced when the flywheel 400 is driven to rotate to reduce the load obtained by the flywheel 400, so that the user can more easily tread the stepping device 300.
It will be appreciated that when the slider 20 slides to the outer end 1051 of the slide rail 105 of the housing 10, the swing arm 30 minimizes the distance between a set of the magnetic elements 50 and the flywheel 400, with the flywheel 400 being driven to rotate by the greatest amount of line of magnetic induction cutting the inner magnetic control device 100 and with the flywheel 400 having the greatest load, i.e., the greatest resistance of the user to pedaling the pedaling apparatus 300. Accordingly, when the slider 20 slides to the inner end 1052 of the slide rail 105 of the housing 10 to allow the slider 20 to enter the escape space 104 of the housing 10, the swing arm 30 maximizes the distance between the set of magnetic elements 50 and the flywheel 400, and the flywheel 400 is driven to rotate while minimizing the amount of magnetic induction lines cutting the inner magnetic control device 100 and minimizing the load on the flywheel 400, that is, the resistance of the user when stepping on the stepping device 300. Therefore, by providing the avoiding space 104 in the housing 10, the slider 20 can have a larger stroke range, so that the swing arm 30 has a larger swing range, and the load of the flywheel 400 can be adjusted in a larger load range.
With continued reference to fig. 1-11B, the housing 10 further includes a bottom shell 11 and a cover 12, wherein the bottom shell 11 has a bottom shell boss 111 and a bottom shell center hole 112 formed in the bottom shell boss 111, wherein the cover 12 has a cover boss 121 and a cover center hole 122 formed in the cover boss 121, wherein the bottom shell 11 and the cover 12 are mounted to each other, the bottom shell center hole 112 of the bottom shell 11 and the cover center hole 122 of the cover 12 correspond to and communicate with each other to form the center through hole 101 of the housing 10, the bottom shell boss 111 of the bottom shell 11 and the cover boss 121 of the cover 12 are attached to each other to form the shell space 102 and the peripheral opening 103 between the bottom shell 11 and the cover 12, and the shell space 102 and the center through hole 101 are isolated to be independent of each other.
The shape of the bottom shell 11 and the cover 12 define the shape of the housing 10, the housing 10 forming the general appearance of the internal magnetic control device 100. In this particular example of the internal magnetic control device 100 of the present invention, the bottom case 11 and the case cover 12 are each designed in a disk shape, so that the case 10 takes a disk shape, thereby matching the shape of the internal magnetic control device 100 to the shape of the flywheel 400.
It should be noted that the installation manner of the bottom case 11 and the cover 12 of the housing 10 is not limited in the internal magnetic control device 100 of the present invention. For example, in this specific example of the internal magnetic control device 100 shown in fig. 1 to 11B, the bottom case 11 has a plurality of bottom case mounting holes 113 formed at intervals to the bottom case boss 111, and accordingly, the bottom case 12 has a plurality of case mounting holes 123 formed at intervals to the case boss 121, wherein each of the bottom case mounting holes 113 of the bottom case 11 corresponds to each of the case mounting holes 123 of the bottom case 12, respectively, to lock the bottom case 11 and the top case 12 in such a manner that a screw is allowed to penetrate and the bottom case 11 and the top case 12 are engaged with each other by a screw and a nut, thus mounting the bottom case 11 and the top case 12.
Preferably, the internal magnetic control device 100 further comprises a flange 60, the flange 60 having a flange through hole 61 and a plurality of flange mounting holes 62, wherein the flange 60 is fitted to the housing cover 12, and the flange through hole 61 of the flange 60 corresponds to the center through hole 101 of the housing 10, and each of the flange mounting holes 62 of the flange 60 corresponds to each of the housing cover mounting holes 123 of the housing cover 12, respectively, to allow a screw penetrating the housing cover mounting holes 123 of the housing cover 12 to further penetrate the flange mounting holes 62 of the flange 60, thereby locking the housing cover 11 and the housing cover 12 by the flange 60 in cooperation with a screw and a nut.
Preferably, the housing 10 further includes a series of support columns 13, and opposite ends of the support columns 13 extend to edges of the bottom case 11 and edges of the cover 12, respectively, for supporting the edges of the bottom case 11 and the edges of the cover 12, in such a manner that the support columns 13 can avoid deformation of the edges of the bottom case 11 and the edges of the cover 12.
Specifically, referring to fig. 7 and 8, the support column 13 includes a bottom case supporting portion 131 and a cover supporting portion 132, wherein the bottom case supporting portion 131 integrally extends outwardly from an edge of the bottom case 11, wherein the cover supporting portion 132 integrally extends outwardly from an edge of the cover 12, wherein the bottom case supporting portion 131 and the cover supporting portion 132 are capable of abutting each other to support the edge of the bottom case 11 and the edge of the cover 12 by the bottom case supporting portion 131 and the cover supporting portion 132 cooperating with each other when the bottom case 11 and the cover 12 are mounted to each other.
In order to prevent the bottom case supporting portion 131 and the case cover supporting portion 132 from being displaced from each other when the bottom case 11 and the case cover 12 are mounted, the free ends of the bottom case supporting portion 131 and the free ends of the case cover supporting portion 132 can be inserted. Specifically, the free end of the bottom case supporting part 131 has a reduced size to form a socket end 1311, and the free end of the case supporting part 132 has a socket groove 1321, wherein the socket end 1311 of the bottom case supporting part 131 can be socket-connected to the socket groove 1321 of the case supporting part 132 to avoid misalignment of the bottom case supporting part 131 and the case supporting part 132.
Preferably, after the bottom case 11 and the case cover 12 are mounted to each other such that the bottom case supporting portion 131 and the case cover supporting portion 132 form the supporting columns 13, the supporting columns 13 are positioned corresponding to gaps between adjacent two of the magnetic elements 50 so as not to affect displacement of the magnetic elements 50 when the swing arm 30 swings.
With continued reference to fig. 7 and 8, the middle portion of the bottom shell 11 is formed with the bottom shell boss 111 by means of concave manner, such that the opposite sides of the bottom shell 11 are respectively formed with the bottom shell boss 111 and a bottom shell groove 114 corresponding to the bottom shell boss 111, and the bottom shell center hole 112 of the bottom shell 11 and the bottom shell mounting holes 113 are respectively communicated with the bottom shell groove 114. Correspondingly, the middle part of the cover 12 is formed with the cover boss 121 in a concave manner, so that the cover boss 121 and a cover groove 124 corresponding to the cover boss 121 are respectively formed on two opposite sides of the cover 12, and the cover center hole 122 of the cover 12 and the cover mounting holes 123 are respectively communicated with the cover groove 124. After the bottom case 11 and the case cover 12 are mounted to each other, the bottom case groove 114 of the bottom case 11 and the case cover groove 124 of the case cover 12 are located at opposite sides of the case 10, respectively, wherein a blocking piece of a screw for locking the bottom case 11 and the case cover 12 may be held at the bottom case groove 114 of the bottom case 11 and the flange 60 and a nut may be held at the case cover groove 124 of the case cover 12, in such a manner that the internal magnetic control device 100 can avoid the protrusion of the screw, the nut and the flange 60, thereby facilitating the light and slim of the internal magnetic control device 100.
With continued reference to fig. 7 and 8, the bottom case 11 has two bottom case rotation grooves 115 formed adjacently at an edge of the bottom case 11, and accordingly, the case cover 12 has two case rotation grooves 125 formed adjacently at an edge of the case cover 12, wherein each of the bottom case rotation grooves 115 of the bottom case 11 and each of the case cover rotation grooves 125 of the case cover 12 can correspond to each other after the bottom case 11 and the case cover 12 are mounted to each other. Referring to fig. 4 and 5, the opposite sides of the pivoting end 31 of each swing arm 30 are provided with a protrusion 33, respectively, wherein each protrusion 33 of the swing arm 30 is rotatably mounted to the bottom case rotation groove 115 of the bottom case 11 and the case cover rotation groove 125 of the case cover 12, respectively, such that the pivoting end 31 of the swing arm 30 is rotatably mounted to the case 10.
Preferably, in this specific example of the internal magnetic control device 100 of the present invention, the swing arm 30 may be formed by punching and bending a plate material so that the boss 33 of the swing arm 30 is flat, wherein the internal magnetic control device 100 further includes a plurality of cylindrical rotation blocks 70 having a middle portion having a fitting hole having a size and shape that are matched to the boss 33 of the swing arm 30 to fit the rotation blocks 70 to the boss 33 of the swing arm 30, the rotation blocks 70 being rotatably mounted to the bottom shell rotation groove 115 of the bottom shell 11 and the cover rotation groove 125 of the cover 12, respectively, so that the pivot end 31 of the swing arm 30 is rotatably mounted to the housing 10. Alternatively, in an alternative example of the internal magnetic control device 100 of the present invention, the boss 33 of the swing arm 30 may be provided in a cylindrical shape to allow the boss 33 of the swing arm 30 to be directly mounted to the bottom case rotating groove 115 of the bottom case 11 or the case cover rotating groove 125 of the case cover 12.
With continued reference to fig. 4, 5 and 7, the slide rail 105 of the housing 10 is formed at the bottom case 11, and the slide rail 105 is disposed to extend from the bottom case boss 111 of the bottom case 11 toward the edge direction of the bottom case 11. In other words, the slider 20 is slidably mounted to the bottom case 11.
Preferably, the housing cover 12 has a limiting body 120, the limiting body 120 is disposed to extend from the housing cover boss 121 of the housing cover 12 toward the edge direction of the housing cover 12, wherein the top surface of the sliding block 20 corresponds to the limiting body 120 of the housing cover 12, so that the sliding block 20 is limited by the limiting body 120 to avoid the sliding block 20 from falling off from the sliding rail 105, thereby ensuring the reliability and stability of the internal magnetic control device 100.
Referring to fig. 4, 5 and 7, the side wall of the bottom case boss 111 of the bottom case 11 is recessed toward the bottom case center hole 112 to form the escape space 104 of the case 10, so that the escape space 104 of the case 10 communicates with the case space 102, and the escape space 104 extends from the case space 102 toward the center hole 101. The inner end 1052 of the slide rail 105 extends toward the avoidance space 104, wherein when the slider 20 is driven to slide to the inner end 1052 of the slide rail 105, at least a portion of the slider 20 can enter the avoidance space 104 of the housing 10 to allow the bottom shell boss 111 of the bottom shell 11 to avoid the slider 20, in such a manner that the slider 20 is allowed to have a larger stroke range, thereby enabling the swing arm 30 to swing within a larger swing range, and thus adjusting the load of the flywheel 400 within a larger load range.
Preferably, the inner end 1052 of the slide rail 105 extends to the escape space 104 of the housing 10 to prevent the slide block 20 from escaping the slide rail 105 when the slide block 20 slides to the escape space 104 of the housing 10. More preferably, the inner end 1052 of the sled 105 is capable of extending to and abutting the side wall of the bottom shell boss 111 of the bottom shell 11.
Preferably, referring to fig. 4 to 8, a portion of the escape space 104 of the housing 10 is formed at the bottom case 11, and another portion is formed at the cover 12. Specifically, the side wall of the bottom case boss 111 of the bottom case 11 is recessed toward the direction of the bottom case center hole 112 to form a part of the escape space 104 of the case 10, and the side wall of the case cover boss 121 of the case cover 12 is recessed toward the direction of the case cover center hole 122 to form another part of the escape space 104 of the case 10, so that the bottom case boss 111 of the bottom case 11 and the case cover boss 121 of the case cover 12 can simultaneously escape the slider 20, in such a manner that the slider 20 is allowed to have a larger stroke range, thereby enabling the swing arm 30 to swing over a larger swing range, and thus adjusting the load of the flywheel 400 over a larger load range.
With continued reference to fig. 1-11B, the internal magnetic control device 100 further includes a driving unit 80 disposed in the housing space 102 of the housing 10 for driving the slider 20 to slide along the track formed by the sliding rail 105 of the housing 10.
Specifically, the driving unit 80 includes a driving motor 81 and a set of reduction gears 82, wherein the driving motor 81 is fixedly provided to the bottom case 11, opposite sides of the set of reduction gears 82 are rotatably provided to the bottom case 11 and the case cover 12, respectively, and one reduction gear 82 of the set of reduction gears 82 is drivably engaged with an output shaft 811 of the driving motor 81. One side of the slider body 22 of the slider 20 forms a row of driven teeth 24, with the other one of the reduction gears 82 of a set of reduction gears 82 meshing with the driven teeth 24 of the slider 20.
When the driving motor 81 rotates in one direction with the output shaft 811 of the driving motor 81 to output power, the power can be transmitted to the slider 20 via a set of the reduction gears 82 to drive the slider 20 to slide along the track formed by the slide rail 105 of the housing 10 from the outer end 1051 of the slide rail 105 toward the inner end 1052, and correspondingly, when the driving motor 81 rotates in the other direction with the output shaft 811 of the driving motor 81 to output power, the power can be transmitted to the slider 20 via a set of the reduction gears 82 to drive the slider 20 to slide along the track formed by the slide rail 105 of the housing 10 from the inner end 1052 of the slide rail 105 toward the outer end 1051.
It should be noted that the type of the driving motor 81 is not limited in the internal magnetic control device 100 of the present invention, and for example, the driving motor 81 may be, but not limited to, a stepping motor, a servo motor.
With continued reference to fig. 1-11B, the bottom shell 11 further has a bottom shell ring 116 and a bottom shell notch 117 defined by the bottom shell ring 116, the bottom shell 12 further has a bottom shell ring 126 and a bottom shell notch 127 defined by the bottom shell ring 126, after the bottom shell 11 and the bottom shell 12 are mounted, the bottom shell ring 116 of the bottom shell 11 and the bottom shell ring 126 of the bottom shell 12 abut against each other to separate the shell space 102 into an inner space 1021 and an outer space 1022, and the bottom shell notch 117 of the bottom shell 11 and the bottom shell notch 127 of the bottom shell 12 correspond to each other to form a movable passage 1023, the movable passage 1023 communicating the inner space 1021 and the outer space 1022, wherein the slide rail 105 is located in the inner space 1021 to allow the slider 20 to slide in the inner space 1021, wherein the swing arm 30 is swingably held in the outer space 1022, wherein the connecting rod 40 extends from the inner space 1021 to the outer space 1022 through the movable passage 1023, such that the opposite ends of the connecting rod 40 can be rotatably mounted to the swing arm 30.
With continued reference to fig. 1-11B, the internal magnetic control device 100 further includes a potential control unit 90, the potential control unit 90 including a circuit board 91 and a sliding potentiometer 92, wherein the circuit board 91 is mounted on the bottom case 11 and is held in the case space 102 of the housing 10, wherein the sliding potentiometer 92 further includes a potentiometer body 921 and a sliding arm 922 slidably disposed on the potentiometer body 921, the potentiometer body 921 is attached to or soldered to the circuit board 91, and the sliding arm 922 is mounted on the slider 20. When the slider 20 is driven to move along the sliding rail 105 of the housing 10, the slider 20 drives the sliding arm 922 to move relative to the potentiometer body 921, thus changing the resistance of the sliding potentiometer 92.
It should be noted that the manner in which the sliding arm 922 of the sliding potentiometer 92 is mounted on the slider 20 is not limited in the internal magnetic control device 100 of the present invention, for example, the slider 20 may have a mounting groove 25, wherein the sliding arm 922 of the sliding potentiometer 92 extends to and is held in the mounting groove 25 of the slider 20, thus mounting the sliding arm 922 of the sliding potentiometer 92 on the slider 20.
It will be appreciated that the resistance of the sliding potentiometer 92 is related to the position of the slider 20 on the slide rail 105 of the housing 10, and that the position of the slider 20 on the slide rail 105 of the housing 10 determines the position of the magnetic element 50 and thus the load of the flywheel 400 when driven to rotate. In other words, the position of the magnetic element 50 of the internal magnetic control device 100 of the present invention and the load of the flywheel 400 when driven to rotate can be determined by detecting the resistance value of the sliding potentiometer 92.
However, due to the errors of the sliding potentiometer 92 itself and the mounting errors of the potentiometer body 921 and the mounting errors of the sliding arm 922 of the sliding potentiometer 92, when the internal magnetic control apparatus 100 of the present invention is mass-produced, the starting point and the ending point of the resistance value of the sliding potentiometer 92 of one batch of the internal magnetic control apparatus 100 have errors, and the error range is usually between 0% and 5%, which results in that the error range of the starting point and the ending point of the position of the magnetic element 50 of one batch of the internal magnetic control apparatus 100 is also between 0% and 5%, and eventually the difference of the magnetic group resistance of one batch of the internal magnetic control apparatus 100 reaches 10% to 20%, which results in poor consistency of one batch of the internal magnetic control apparatus 100. Therefore, in order to secure the resistance value of a batch of the internal magnetic control devices 100, it is necessary to test and calibrate the sliding potentiometer 921 after the potentiometer body 921 of the sliding potentiometer 921 is mounted on the circuit board 91 and the sliding arm 922 is mounted on the slider 20.
The potential control unit 90 of the internal magnetic control device 100 of the present invention further includes a calibration potentiometer 93, the calibration potentiometer 93 is mounted on the circuit board 91, and the calibration potentiometer 93 and the sliding potentiometer 92 are connected in series, and the initial position of the resistance value of the internal magnetic control device 100 can be calibrated by adjusting the calibration potentiometer 93. Alternatively, in other examples of the internal magnetic control device 100 of the present invention, the calibration potentiometer 93 and the sliding potentiometer 92 may be connected in parallel, such that the resistive value initial position of the internal magnetic control device 100 can be calibrated by adjusting the calibration potentiometer 93.
Further, the housing 10 has a calibration channel 14, the calibration channel 14 is formed on the housing cover 12, wherein the calibration potentiometer 93 is disposed corresponding to the calibration channel 14, so that the initial position of the resistance value of the internal magnetic control device 100 can be calibrated through the calibration channel 14 of the housing 10 without disassembling the internal magnetic control device 100, thereby greatly improving the resistance value calibration efficiency and the production efficiency of the internal magnetic control device 100. Specifically, the initial position of the resistance value of the internal magnetic control device 100 can be calibrated by rotating the calibration potentiometer 93 using a simple tool (e.g., a screwdriver) on the outside of the housing 10. Preferably, the calibration potentiometer 93 extends to the calibration channel 14 of the housing 10.
Referring to fig. 12, the principle of the calibration potentiometer 93 calibrating the key position (e.g., the initial position of the resistance value) of the internal magnetic control device 100 is:the sliding potentiometer 92 and the calibration potentiometer 93 are connected in series, wherein the parameter R 1 Is the sliding potentiometer 92, parameter R 2 Is the calibration potentiometer 93, the parameter a is the position at which the slider 20 slides the slide arm 922 to the slide potentiometer 92 when the slider 20 slides to the outer end 1051 of the slide rail 105 of the housing 10, the parameter B is the position at which the slider 20 slides the slide arm 922 to the slide potentiometer 91 when the slider 20 slides to the inner end 1052 of the slide rail 105 of the housing 10, the parameter R 1 A is the distance between point A and the sliding arm 922, parameter R 1 B is the distance between the point B and the sliding arm 922, parameter R 1 A and parameter R 1 B is dynamic, which changes as the position of the sliding arm 922 sliding on the sliding potentiometer 92 changes, parameter V 0 With R 1 A and R 1 The partial pressure value of B varies.
For the internal magnetic control device 100 not provided with the calibration potentiometer 93, the above parameters satisfy the condition:when the internal magnetic control device 100 of the present invention is mass-produced, V is formed by an error of the sliding potentiometer 92 itself, a mounting error of the potentiometer body 921 of the sliding potentiometer 92, and a mounting error of the sliding arm 922 0 Errors in the values of (a) result in poor consistency for a batch of the internal magnetic control devices 100.
For the internal magnetic control device 100 to which the calibration potentiometer 93 is set, the above parameters satisfy the condition:namely V 0 ’＝△+V 0 Wherein the resistance of the calibration potentiometer 93 is adjustable, for example, in the case of the calibration channel 14 of the housing 10The resistance of the calibration potentiometer 93, that is, the value of the parameter delta, can be adjusted by rotating the calibration potentiometer 93 on the outer side of the housing 10, so that the initial position of the resistance of the internal magnetic control device 100 can be conveniently calibrated to ensure the consistency of a batch of internal magnetic control devices 100.
Fig. 14A to 15B illustrate a magnetic control device 100A according to another preferred embodiment of the present invention, and fig. 16 to 17B illustrate an application state of the magnetic control device 100A, which illustrates that a flywheel 200A is wound around the circumference of the magnetic control device 100A, and a load is obtained by continuously cutting magnetic induction lines of the magnetic control device 100A when the flywheel 200A is driven to rotate, so that a user driving the flywheel 200A to rotate can obtain exercise.
It should be noted that in this particular example of the magnetic control device 100A shown in fig. 14A to 15B, the magnetic control device 100A is disposed inside the flywheel 200A to form an internal magnetic control device.
With continued reference to fig. 14A-17B, the magnetic control device 100A includes a magnetic control body 10A and a potential control unit 20A disposed on the magnetic control body 10A. Preferably, the potential control unit 20A is provided inside the magnetron body 10A.
Specifically, the magnetic control body 10A further includes a housing 11A, at least one swing arm 12A, and at least one set of magnetic elements 13A, wherein the swing arm 12A has a pivot end 121A and a driven end 122A corresponding to the pivot end 121A, the pivot end 121A of the swing arm 12A is rotatably mounted to an edge of the housing 11A, one set of the magnetic elements 13A is disposed on the swing arm 12A, wherein the flywheel 200A is disposed around a periphery of the housing 11A, and the flywheel 200A can be driven to rotate relative to the housing 11A.
By driving the swing arm 12A to swing with respect to the housing 11A, the distance between a set of the magnetic elements 13A and the flywheel 200A can be adjusted, so that the amount of magnetic induction lines that cut the magnetic control device 100A when the flywheel 200A is driven to rotate can be adjusted, thereby adjusting the load of the flywheel 200A. Specifically, when the swing arm 12A swings to make the distance between the set of magnetic elements 13A and the flywheel 200A larger, the flywheel 200A cuts the magnetic induction line of the magnetic control device 100A less when driven to rotate, so that the load of the flywheel 200A is smaller, and at this time, the resistance value paid out when the user drives the flywheel 200A to rotate decreases, so that the user can drive the flywheel 200A to rotate more easily, and conversely, when the swing arm 12A swings to make the distance between the set of magnetic elements 13A and the flywheel 200A smaller, the flywheel 200A cuts the magnetic induction line of the magnetic control device 100A more when driven to rotate, so that the load of the flywheel 200A is larger, and at this time, the resistance value paid out when the user drives the flywheel 200A to rotate increases, so that the user can drive the flywheel 200A to rotate more laboriously.
In other words, the position of the swing arm 12A determines the relative positions of a set of the magnetic elements 13A and the flywheel 200A, and thus the load of the flywheel 200A when driven to rotate.
The potential control unit 20A is configured to allow the resistance value of the potential control unit 20A to vary with the swing of the swing arm 12A, so that the position of the swing arm 12A and the position of a set of the magnetic elements 13A with respect to the flywheel 200A are fed back by the resistance value of the potential control unit 20A, thereby feeding back the load of the flywheel 200A when driven to rotate. In other words, the resistance value of the potential control unit 20A, the position of the swing arm 12A, the position of a set of the magnetic elements 13A relative to the flywheel 200A, and the load of the flywheel 200A when driven to rotate are in one-to-one correspondence.
The potential control unit 20A includes a feedback potentiometer 21A and a calibration potentiometer 22A connected to the feedback potentiometer 21A, wherein the feedback potentiometer 21A further includes a potentiometer body 211A and a movable portion 212A movably disposed on the potentiometer body 211A, the movable portion 212A being associated with the swing arm 12A. For example, in the specific example of the magnetic control device 100A shown in fig. 14A to 17B, the feedback potentiometer 21A is a sliding potentiometer, so that the movable portion 212A forms a sliding arm to be slidably provided to the potentiometer body 211A.
The resistance value of the potential control unit 20A is related to the resistance value of the feedback potentiometer 21A and the resistance value of the calibration potentiometer 22A, and the relationship between the resistance value of the potential control unit 20A and the resistance value of the feedback potentiometer 21A and the resistance value of the calibration potentiometer 22A depends on the connection relationship between the feedback potentiometer 21A and the calibration potentiometer 22A. For example, in the specific example shown in fig. 18, the feedback potentiometer 21A and the calibration potentiometer 22A are connected in series, and in the specific example shown in fig. 19, the feedback potentiometer 21A and the calibration potentiometer 22A are connected in parallel.
Further, the magnetic control device 100A further includes a circuit board 30A, wherein the potentiometer body 211A of the feedback potentiometer 21A and the calibration potentiometer 22A are connected through the circuit board 30A, and the circuit board 30A is mounted to the housing 11A.
For example, in this specific example of the magnetic control device 100A shown in fig. 14A to 17B, the potentiometer main body 211A and the calibration potentiometer 22A are respectively provided to the circuit board 30A. It should be noted that the manner in which the potentiometer body 211A of the feedback potentiometer 21A and the calibration potentiometer 22A are disposed on the circuit board 30A is not limited in the magnetic control apparatus 100A of the present invention. For example, the potentiometer body 211A and the calibration potentiometer 22A of the feedback potentiometer 21A can be mounted on the circuit board 30A, or the potentiometer body 211A and the calibration potentiometer 22A of the feedback potentiometer 21A can be soldered on the circuit board 30A.
For the magnetic control device 100A of the present invention, when the user normally uses the magnetic control device 100A, for example, when the user exercises with exercise equipment configured with the magnetic control device 100A, the resistance value of the calibration potentiometer 22A remains unchanged, that is, the resistance value of the potential control unit 20A changes only depending on the resistance value of the feedback potentiometer 21A. The magnetic control device 100A of the present invention is provided with the calibration potentiometer 22A to calibrate the error of the corresponding relationship between the resistance value of the potential control unit 20A and the position of the swing arm 12A, the position of a set of the magnetic elements 13A relative to the flywheel 200A, and the load of the flywheel 200A when driven to rotate, which is caused by the error of the feedback potentiometer 21A. By introducing the calibration potentiometer 22A into the potential control unit 20A, the resistance value of the potential control unit 20A, particularly, the starting point position and the ending point position of the potential control unit 20A, can be calibrated to calibrate the resistance value of the magnetic control device 100A so as to keep the resistance values of a batch of the magnetic control devices 100A consistent.
Referring to fig. 18, the principle of calibrating the resistance value of the potential control unit 20A and thus the magnetic control device 100A by the calibration potentiometer 22A is that: the feedback potentiometer 21A and the calibration potentiometer 22A are connected in series, wherein a parameter R 1 Is the feedback potentiometer 21A, parameter R 2 Is the calibration potentiometer 22A, the parameter A is the position where the movable portion 212A is arranged to slide to the outermost end of the potentiometer body 211A, the parameter B is the position where the movable portion 212A is arranged to slide to the innermost end of the potentiometer body 211A, and when the movable portion 212A is in the A position, the distance between the set of magnetic elements 13A and the flywheel 200A is the smallest, when the movable portion 212A is in the B position, the distance between the set of magnetic elements 13A and the flywheel 200A is the largest, the parameter R 1 A is the distance between the A position and the movable portion 212A, parameter R 1 B is the distance between the B position and the movable portion 212A, where the parameter R 1 A and parameter R 1 B is dynamic, which follows the change in position of the movable portion 212A sliding on the feedback potentiometer 21ATherefore, by adjusting the value of Δ, the resistance of the potential control unit 20A can be conveniently adjusted to ensure consistency of a batch of the magnetic control devices 100A.
With continued reference to fig. 14A to 17B, the housing 11A has a housing space 1101A and a peripheral opening 1102A communicating with the housing space 1101A, the swing arm 12A is swingably provided to the housing space 1101A of the housing 11A, and a set of the magnetic elements 13A is provided toward the peripheral opening 1102A of the housing 11A, so that when the swing arm 12A swings in a direction in which the housing space 1101A of the housing 11A approaches or separates from the peripheral opening 1102A of the housing 11A, a set of the magnetic elements 13A can move toward a direction approaching or separating from the flywheel 200A. The circuit board 30A is mounted to the housing space 1101A of the housing 11A such that the potential control unit 20A is held in the housing space 1101A of the housing 11A.
The housing 11A further has a calibration passage 1103A, the calibration passage 1103A being in communication with the housing space 1101A, wherein the calibration potentiometer 22A of the potential control unit 20A is provided to correspond to the calibration passage 1103A of the housing 11A, so that when calibrating the resistance value of a batch of the magnetic control devices 100A, the resistance value of the calibration potentiometer 22A can be adjusted outside the housing 11A through the calibration passage 1103A of the housing 11A without disassembling the magnetic control devices 100A, thereby calibrating the resistance value of the potential control unit 20A, in such a manner that the resistance value of a batch of the magnetic control devices 100A can be conveniently calibrated consistently. For example, a simple tool (e.g., a screwdriver) can extend into the calibration channel 1103A of the housing 11A and act on the calibration potentiometer 22A, and the resistance of the calibration potentiometer 22A can be adjusted by rotating the calibration potentiometer 22A, thereby completing the calibration of the resistance of the magnetic control device 100A. Preferably, the calibration potentiometer 22A can extend to the calibration channel 1103A of the housing 11A, or the calibration potentiometer 22A can be exposed to the housing 11A via the calibration channel 1103A of the housing 11A.
The housing 11A further has a central aperture 1104A, and the mounting shaft of the equipment rack of the exercise equipment can be mounted to the central aperture 1104A of the housing 11A, thus mounting the magnetic control device 100A to the equipment rack of the exercise equipment.
The housing 11A further has a sliding rail 1105A, wherein the sliding rail 1105A is located in the housing space 1101A, and an extending direction of the sliding rail 1105A coincides with a radial direction of the housing 11A such that an outer end of the sliding rail 1105A extends toward an edge direction of the housing 11A and an inner end of the sliding rail 1105A extends toward the center perforated hole 1104A of the housing 11A. The magnetic control body 10A further includes a slider 14A and at least one connecting rod 15A, the slider 14A is slidably mounted on the sliding rail 1105A of the housing 11A, one end of the connecting rod 15A is rotatably mounted on the driven end 122A of the swing arm 12A, and the other end of the connecting rod 15A is rotatably mounted on the slider 14A, so that when the slider 14A is driven to move along the sliding rail 1105A of the housing 11A, the slider 14A acts on the swing arm 12A through the connecting rod 15A to drive the swing arm 12A to swing relative to the housing 11A.
Specifically, when the slider 14A is driven to slide in an inward direction from the outer end of the sliding rail 1105A along the sliding rail 1105A of the housing 11A, the slider 14A swings by the connecting rod 15A pulling the swing arm 12A in a direction away from the peripheral opening 1102A of the housing 11A, thus increasing the distance between a set of the magnetic elements 13A and the flywheel 200A to reduce the load of the flywheel 200A. Accordingly, when the slider 14A is driven to slide along the sliding rail 1105A of the housing 11A from the inner end to the outer end of the sliding rail 1105A, the slider 14A pushes the swing arm 12A to swing toward the direction approaching the peripheral opening 1102A of the housing 11A through the connecting rod 15A, so that the distance between the set of magnetic elements 13A and the flywheel 200A is reduced to increase the load of the flywheel 200A.
Preferably, the housing 11A further has a relief space 1106A, the relief space 1106A extending from the housing space 1101A toward the central aperture 1104A, at least a portion of the slider 14A being capable of sliding into the relief space 1106A of the housing 11A, such that the slider 14A is allowed to have a greater range of travel to provide the swing arm 12A with a greater range of swing to adjust the load of the flywheel 200A over a greater range. For example, in this particular example of the magnetic control device 100A of the present invention, the travel of the slider 14A can exceed 12mm and can even reach 20mm.
Preferably, the swing arm 12A extends between the pivot end 121A and the driven end 122A in a curved manner so that the swing arm 12A has a cambered surface shape, and thus the shape of the outer side of the swing arm 12A is substantially the same as the shape of the peripheral edge of the housing 11A. Preferably, the magnetic element 13A is of a cambered surface type, and the shape of the inner side of the magnetic element 13A is identical to the shape of the outer side of the swing arm 12A so as to reliably dispose the magnetic element 13A on the outer side of the swing arm 12A.
The movable portion 212A of the feedback potentiometer 21A is mounted to the slider 14A such that the distance between the movable portion 212A of the feedback potentiometer 21A and the swing arm 12A is correlated by the slider 14A and the connecting rod 15A, so that when the slider 14A slides along the sliding rail 1105A of the housing 11A, the slider 14A can drive the movable portion 212A of the feedback potentiometer 21A to slide synchronously, thereby causing a change in the resistance value of the potential control unit 20A, and at this time, the position of the slider 14A in the sliding rail 1105A of the housing 11A and the distance between a set of the magnetic elements 13A and the flywheel 200A are determined according to the resistance value of the potential control unit 20A, thereby determining the load of the flywheel 200A when driven to rotate.
It should be noted that the mounting manner of the movable portion 212A of the feedback potentiometer 21A and the slider 14A is not limited in the magnetic control device 100A of the present invention, for example, the slider 14A has a mounting groove 141A, and the movable portion 212A of the feedback potentiometer 21A can be mounted in the mounting groove 141A of the slider 14A, so that the slider 14A can drive the movable portion 212A of the feedback potentiometer 21A to slide synchronously when the slider 14A slides along the sliding rail 1105A of the housing 11A.
Referring to fig. 14A to 17B, in this specific example of the magnetic control apparatus 100A of the present invention, the magnetic control main body 10A includes one housing 11A, two swing arms 12A, two sets of the magnetic elements 13A, one slider 14A, and two connecting rods 15A, wherein the two swing arms 12A are rotatably mounted to edges of the housing 11A in such a manner that the pivot ends 121A of the two swing arms 12A are adjacent, and the driven ends 122A of the two swing arms 12A are respectively extended to positions adjacent to the sliders 14A, wherein one end portions of the two connecting rods 15A are respectively rotatably mounted to the driven ends 122A of the two swing arms 12A, and the other end portions of the two connecting rods 15A are respectively rotatably mounted to each side portion of the slider 14A, wherein each set of the magnetic elements 13A is respectively disposed outside each swing arm 12A.
When the slider 14A is driven to slide along the track formed by the sliding rail 1105A of the housing 11A from the inner end to the outer end of the sliding rail 1105A, the slider 14A pushes each swing arm 12A to swing outwards through each connecting rod 15A respectively and synchronously, so that each swing arm 12A drives each group of the magnetic elements 13A to move towards the direction approaching the peripheral opening 1102A of the housing 11A respectively, at this time, the distance between one group of the magnetic elements 13A and the flywheel 200A is reduced, and thus the amount of magnetic induction lines of the magnetic control device 100A is increased when the flywheel 200A is driven to rotate to increase the load of the flywheel 200A, and at this time, the user can drive the flywheel 200A to rotate with great effort. Accordingly, when the slider 14A is driven to slide along the track formed by the sliding rail 1105A of the housing 11A from the outer end of the sliding rail 1105A toward the inner end, the slider 14A pulls each swing arm 12A to swing inward by each of the connecting rods 15A respectively and simultaneously so that each swing arm 12A drives each set of the magnetic elements 13A to move away from the peripheral opening 1102A of the housing 11A respectively, at which time the distance between one set of the magnetic elements 13A and the flywheel 200A is increased, so that the amount of magnetic induction lines cutting the magnetic control device 100A is reduced to reduce the load of the flywheel 200A when the flywheel 200A is driven to rotate, and at which time the user can drive the flywheel 200A to rotate with less effort. In the above-described process, the resistance value of the potential control unit 20A varies with the sliding of the slider 14A, and the resistance value of the potential control unit 20A can accurately feed back the position of the slider 14A to determine the load on which the flywheel 200A is driven to rotate.
Further, the housing 11A includes a bottom case 111A and a housing cover 112A, wherein the bottom case 111A and the housing cover 112A can be mounted to each other to form the housing space 1101A and the peripheral opening 1102A between the bottom case 111A and the housing cover 112A, and the alignment passage 1103A is formed in the housing cover 112A. Preferably, the magnetic control body 10A further includes a flange 16A, wherein the flange 16A is used to assemble the bottom shell 111A and the cover 112A. The sliding rail 1105A of the housing 11A is formed on the bottom case 111A such that the slider 14A is slidably mounted to the housing 11A.
The magnetic control body 10A further includes a driving portion 17A, where the driving portion 17A is disposed in the housing space 1101A of the housing 11A, for driving the slider 14A to slide along a track formed by the sliding rail 1105A of the housing 11A.
Specifically, the driving portion 17A includes a driving motor 171A and a set of reduction gears 172A, wherein the driving motor 171A is fixedly provided to the bottom case 111A, opposite sides of the set of reduction gears 172A are rotatably mounted to the bottom case 111A and the case cover 112A, respectively, and one of the set of reduction gears 172A is drivably engaged with an output shaft of the driving motor 171A and the other is drivably engaged with the driven teeth 142A of the slider 14A, so that the driving motor 171A drives the slider 14A to slide along the slide rails 1105A of the case 11A through the set of reduction gears 172A.
More specifically, when the drive motor 171A rotates in one direction with the output shaft of the drive motor 171A to output power, the power can be transmitted to the slider 14A via a set of the reduction gears 172A to drive the slider 14A to slide in the inward direction from the outer end of the sliding rail 1105A along the track formed by the sliding rail 1105A of the housing 11A, and accordingly, when the drive motor 171A rotates in the other direction with the output shaft of the drive motor 171A to output power, the power can be transmitted to the slider 14A via a set of the reduction gears 172A to drive the slider 14A to slide in the outward direction from the inner end of the sliding rail 1105A along the track formed by the sliding rail 1105A of the housing 11A.
It should be noted that the type of the driving motor 171A is not limited in the magnetic control device 100A of the present invention, and for example, the driving motor 171A may be, but is not limited to, a stepping motor, a servo motor. Preferably, the driving motor 171A is connected to the circuit board 30A. A step of
According to another aspect of the present invention, the present invention further provides a method for calibrating a resistance value of the magnetic control device 100A, for ensuring consistency of a batch of magnetic control devices 100A, wherein the method for calibrating a resistance value comprises the following steps:
(a) Measuring an actual power value of the flywheel 200A in a rotating state at a target point, wherein the flywheel 200A in the rotating state cuts a magnetic induction line of the magnetic control device 100A to obtain a load; and
(b) And adjusting the resistance value of the calibration potentiometer 22A of the magnetic control device 100A so that the actual power value of the flywheel 200 is consistent with the design power value of the flywheel 200 corresponding to the target point.
For example, the target point location may be the a position or the B position shown in fig. 18 and 19. In other words, in the resistance calibration method of the present invention, first, the movable portion 212A of the feedback potentiometer 21A is allowed to slide to the a position; secondly, the flywheel 200 is driven to rotate relative to the magnetic control device 100A, and at the moment, the flywheel 200A continuously cuts the magnetic induction line of the magnetic control device 100A to obtain a load; third, measuring the actual power value of the flywheel 200A; fourth, comparing the actual power value of the flywheel 200A with the design power value of the flywheel 200A when the movable portion 212A of the feedback potentiometer 21A is at the a position, and if there is a difference between the two values, the resistance value of the magnetic control device 100A with the measured surface has an error with respect to the resistance values of other magnetic control devices 100A; fifth, the resistance value of the magnetic control device 100A is adjusted by adjusting the resistance value of the calibration potentiometer 22A, so that the actual power value of the flywheel 200A is consistent with the design power value of the feedback potentiometer 21A when the movable portion 212A is at the position a, thereby realizing the resistance calibration of the magnetic control device 100A.
It will be appreciated that in step (a), the actual power value of the flywheel 200A in the rotated state may be measured by a dynamometer.
Preferably, in the step (b), the resistance value of the calibration potentiometer 22A may be adjusted in such a manner that the calibration potentiometer 22A is rotated.
Preferably, in the step (b), the calibration potentiometer 22A inside the magnetic control apparatus 100A may be calibrated outside the magnetic control apparatus 100A. For example, the housing 11A of the magnetic control device 100A has the calibration channel 1101A, the calibration potentiometer 22A corresponds to the calibration channel 1101A, and the resistance calibration method allows a tool (e.g., a screwdriver) to be able to apply a force to the calibration potentiometer 22A through the calibration channel 1101A of the housing 11A of the magnetic control device 100A to adjust the resistance of the calibration potentiometer 22A.
Fig. 20 and 21 show a magnetic control device 100B according to another preferred embodiment of the present invention, and fig. 22 shows an application state of the magnetic control device 100B, which describes a portion of a flywheel 200B extending into the magnetic control device 100B and being capable of continuously cutting magnetic induction lines of the magnetic control device 100B to obtain a load when the flywheel 200B is driven to rotate, thus driving the flywheel 200B to rotate to obtain exercise.
It should be noted that in this particular example of the magnetic control device 100B shown in fig. 20 to 22, the magnetic control device 100B is disposed at an edge of the flywheel 200B to form an external magnetic control device.
With continued reference to fig. 20 to 22, the magnetic control device 100B includes a magnetic control body 10B and a potential control unit 20B disposed on the magnetic control body 10B. Preferably, the potential control unit 20B is disposed inside the magnetron body 10B.
Specifically, the magnetic control body 10B further includes a housing 11B, a swing arm 12B, and a set of magnetic elements 13B, wherein the swing arm 12B has a pivot end 121B and a driven end 122B corresponding to the pivot end 121B, the pivot end 121B of the swing arm 12B is rotatably mounted to the housing 11B, a set of the magnetic elements 13B is disposed on the swing arm 12B, wherein the magnetic control body 10B is located at an edge of the flywheel 200B, and the swing arm 12B is capable of swinging in a direction away from or near the edge of the flywheel 200B, such that the swing arm 12B drives the set of magnetic elements 13B to move toward a position away from or near the edge of the flywheel 200B.
By driving the swing arm 12B to swing relative to the housing 11B, the distance between a set of the magnetic elements 13B and the flywheel 200B can be adjusted so that the amount of magnetic induction lines that the flywheel 200B cuts through the magnetic control device 100B when driven to rotate can be adjusted, thereby adjusting the load of the flywheel 200B. Specifically, when the swing arm 12B swings to make the distance between the set of magnetic elements 13B and the flywheel 200B larger, the flywheel 200B cuts the magnetic induction line of the magnetic control device 100B less when driven to rotate, so that the load of the flywheel 200B is smaller, and at this time, the resistance value paid out when the user drives the flywheel 200B to rotate decreases, so that the user can drive the flywheel 200B to rotate more easily, and conversely, when the swing arm 12B swings to make the distance between the set of magnetic elements 13B and the flywheel 200B decrease, the flywheel 200B cuts the magnetic induction line of the magnetic control device 100B more when driven to rotate, so that the load of the flywheel 200B is larger, and at this time, the resistance value paid out when the user drives the flywheel 200B to rotate increases, so that the user can drive the flywheel 200B to rotate more laboriously.
In other words, the position of the swing arm 12B determines the relative positions of a set of the magnetic elements 13B and the flywheel 200B, and thus the load of the flywheel 200B when driven to rotate.
The potential control unit 20B is configured to allow the resistance value of the potential control unit 20B to vary with the swing of the swing arm 12B, so that the position of the swing arm 12B and the position of a set of the magnetic elements 13B with respect to the flywheel 200B are fed back by the resistance value of the potential control unit 20B, and thus the load of the flywheel 200B when driven to rotate is fed back. In other words, the resistance value of the potential control unit 20B, the position of the swing arm 12B, the position of a set of the magnetic elements 13B with respect to the flywheel 200B, and the load of the flywheel 200B when driven to rotate are in one-to-one correspondence.
The potential control unit 20B includes a feedback potentiometer 21B and a calibration potentiometer 22B connected to the feedback potentiometer 21B, wherein the feedback potentiometer 21B further includes a potentiometer body and a movable portion movably disposed on the potentiometer body, the movable portion being associated with the swing arm 12B. For example, in the specific example of the magnetic control device 100B shown in fig. 20 to 22, the feedback potentiometer 21B is a rotary potentiometer, so that the movable portion forms a rotary arm to be rotatably provided to the potentiometer body.
The resistance value of the potential control unit 20B is related to the resistance value of the feedback potentiometer 21B and the resistance value of the calibration potentiometer 22B, and the relationship between the resistance value of the potential control unit 20B and the resistance value of the feedback potentiometer 21B and the resistance value of the calibration potentiometer 22B depends on the connection relationship between the feedback potentiometer 21B and the calibration potentiometer 22B.
Further, the magnetic control device 100B further includes a circuit board 30B, wherein the potentiometer body of the feedback potentiometer 21B and the calibration potentiometer 22B are connected through the circuit board 30B, and the circuit board 30B is mounted to the housing 11B.
For example, in this specific example of the magnetic control device 100B shown in fig. 20 to 22, the potentiometer body of the feedback potentiometer 21B is connected to the circuit board 30B, and the calibration potentiometer 22B is provided to the circuit board 30B. It should be noted that the manner in which the calibration potentiometer 22B is disposed on the circuit board 30B is not limited in the magnetic control device 100B of the present invention. For example, the calibration potentiometer 22B can be mounted to the circuit board 30B, or the calibration potentiometer 22B can be soldered to the circuit board 30B.
For the magnetic control device 100B of the present invention, when the user normally uses the magnetic control device 100B, for example, when the user exercises with exercise equipment configured with the magnetic control device 100B, the resistance value of the calibration potentiometer 22B remains unchanged, that is, the resistance value of the potential control unit 20B changes only depending on the resistance value of the feedback potentiometer 21B. The magnetic control device 100B of the present invention is provided with the calibration potentiometer 22B to calibrate the error of the corresponding relationship between the resistance value of the potential control unit 20B and the position of the swing arm 12B, the position of a set of the magnetic elements 13B relative to the flywheel 200B, and the load of the flywheel 200B when driven to rotate, which is caused by the error of the feedback potentiometer 21B. By introducing the calibration potentiometer 22B into the potential control unit 20B, the resistance value of the potential control unit 20B, particularly, the starting point position and the ending point position of the potential control unit 20B, can be calibrated to calibrate the resistance value of the magnetic control device 100B so as to keep the resistance values of a batch of the magnetic control devices 100B consistent.
The calibration potentiometer 22B calibrates the resistance of the potential control unit 20B and thus the magnetic control device 100B according to the following principle: the feedback potentiometer 21B and the calibration potentiometer 22B are connected in series, wherein a parameter R 1 Is the feedback potentiometer 21B, parameter R 2 Is the calibration potentiometer 22B, the parameter A is the position where the movable part is arranged to be rotatable to the outermost side of the potentiometer body, and the parameter B is the position where the movable part is arrangedRotatable to an innermost position of the potentiometer body, and a set of the magnetic elements 13B and the flywheel 200B are at a minimum distance when the movable portion is in the a position, and a set of the magnetic elements 13B and the flywheel 200B are at a maximum distance when the movable portion is in the B position, a parameter R 1 A is the distance between the A position and the movable part, and the parameter R 1 B is the distance between the B position and the movable part, wherein the parameter R 1 A and parameter R 1 B is dynamic, which follows the active part in the feedbackThe resistance of potentiometer 22B is adjustable, so that by adjusting the value of Δ, the resistance of the potential control unit 20B can be conveniently adjusted to ensure consistency of a batch of magnetic control devices 100B.
With continued reference to fig. 20 to 22, the housing 11B has at least one housing space 1101B and a peripheral opening 1102B communicating with the housing space 1101B, the swing arm 12B is swingably provided to the housing space 1101B of the housing 11B, a set of the magnetic elements 13B is provided toward the peripheral opening 1102B of the housing 11B, and an edge of the flywheel 200B can extend to the housing space 1101B through the peripheral opening 1102B of the housing 11B, so that when the swing arm 12B swings in a direction toward or away from the peripheral opening 1102B of the housing 11B in the housing space 1101B, a set of the magnetic elements 13B can move toward or away from the flywheel 200B. The circuit board 30B is mounted to the housing space 1101B of the housing 11B such that the potential control unit 20B is held in the housing space 1101B of the housing 11B.
The housing 11B further has a calibration passage 1103B, the calibration passage 1103B communicates with the housing space 1101B, wherein the calibration potentiometer 22B of the potential control unit 20B is disposed to correspond to the calibration passage 1103B of the housing 11B, so that when calibrating the resistance value of a batch of the magnetic control devices 100B, the resistance value of the calibration potentiometer 22B can be adjusted outside the housing 11B through the calibration passage 1103B of the housing 11B without disassembling the magnetic control devices 100B, thereby calibrating the resistance value of the potential control unit 20B, in such a way that the resistance value of the magnetic control devices 100B can be conveniently calibrated, and thus the resistance value of a batch of the magnetic control devices 100B can be conveniently calibrated consistently. For example, a simple tool (e.g., a screwdriver) can extend into the calibration channel 1103B of the housing 11B and act on the calibration potentiometer 22B, and the resistance of the calibration potentiometer 22B can be adjusted by rotating the calibration potentiometer 22B, thereby completing the calibration of the resistance of the magnetic control device 100B. Preferably, the calibration potentiometer 22B can extend to the calibration channel 1103B of the housing 11B, or the calibration potentiometer 22B can be exposed to the housing 11B via the calibration channel 1103B of the housing 11B.
Further, the housing 11B includes a bottom case 111B, a cover 112B, and a cover 113B. The bottom case 111B and the case cover 112B are mounted to each other to form one of the case space 1101B and the peripheral opening 1102B between the bottom case 111B and the case cover 112B, wherein the swing arm 12B is swingably provided to the case space 1101B. The cover 113B is mounted to the cover 112B to form the housing space 1101B between the cover 113B and the cover 112B, wherein the circuit board 30B mounted to the cover 112B is held in the housing space 1101B formed between the cover 112B and the cover 113B. The calibration channel 1103B is formed in the cover 113B, and the calibration potentiometer 22B provided on the circuit board 30B corresponds to the calibration channel 1103B formed in the cover 113B.
The magnetic control body 10B further includes a driving portion 17B, where the driving portion 17B is disposed in the housing space 1101B of the housing 11B, for driving the swing arm 12B to swing with respect to the housing 11B.
Specifically, the driving part 17B further includes a driving motor 171B, a set of reduction gears 172B, a first driving arm 173B, and a second driving arm 174B, wherein the driving motor 171B is fixedly mounted to the bottom shell 111B of the housing 11B, wherein opposite sides of the set of reduction gears 172B are rotatably mounted to the bottom shell 111B and the cover 112B of the housing 11B, respectively, and one reduction gear 172B of the set of reduction gears 172B is drivably connected to an output shaft of the driving motor 171B, wherein a middle portion of the first driving arm 173B is rotatably mounted to the housing 11B, and one end portion of the first driving arm 173B is drivably connected to one reduction gear 172B of the set of reduction gears 172B, wherein one end portion of the second driving arm 174B is rotatably mounted to the other end portion 174B of the second driving arm 174B, and the other end portion 174B is rotatably mounted to the driven arm 12B of the driven arm 174B by the reduction gears 12B and the driven arm 122B via the first driving arm 173B.
More specifically, when the drive motor 171B rotates in one direction with the output shaft of the drive motor 171B to output power, the power is transmitted to the swing arm 12B via a set of the reduction gear 172B, the first drive arm 173B, and the second drive arm 174B to allow the swing arm 12B to swing in a direction toward the flywheel 200B to increase the load of the flywheel 200B in rotation, and correspondingly, when the drive motor 171B rotates in the other direction with the output shaft of the drive motor 171B to output power, the power is transmitted to the swing arm 12B via a set of the reduction gear 172B, the first drive arm 173B, and the second drive arm 174B to allow the swing arm 12B to swing in a direction away from the flywheel 200B to decrease the load of the flywheel 200B in rotation.
It should be noted that the type of the driving motor 171B is not limited in the magnetic control device 100B of the present invention, and for example, the driving motor 171B may be, but not limited to, a stepping motor, a servo motor. Preferably, the driving motor 171B is connected to the circuit board 30B.
Further, the movable portion of the feedback potentiometer 21B is mounted on the first driving arm 173B of the driving portion 17B, so that when the driving motor 171B drives the swing arm 12B to swing through a set of the reduction gear 172B, the first driving arm 173B and the second driving arm 174B, the first driving arm 173B can drive the movable portion to rotate relative to the potentiometer body, so that the resistance value of the potential control unit 20B changes, and at this time, the distance between the set of the magnetic elements 13B and the flywheel 200B can be determined according to the resistance value of the potential control unit 20B, so that the load of the flywheel 200B when driven to rotate can be determined.
It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are by way of example only and are not limiting. The objects of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been shown and described in the examples and embodiments of the invention may be modified or practiced without departing from the principles described.

Claims (21)

  1. An internal magnetic control device, comprising:
    a slide block;
    at least one connecting rod;
    at least one set of magnetic elements;
    at least one swing arm, wherein the swing arm has a pivoting end and a driven end corresponding to the pivoting end, wherein a group of the magnetic elements are arranged outside the swing arm, and wherein opposite ends of the connecting rod are rotatably mounted on the driven end of the swing arm and the sliding block respectively; and
    the shell is provided with a center perforation, a shell space, a peripheral opening, an avoidance space and a sliding rail, wherein the shell space is positioned outside the center perforation, the peripheral opening is communicated with the shell space, the avoidance space extends from the shell space to the direction of the center perforation, the extending direction of the sliding rail is consistent with the radial direction of the shell, the outer end of the sliding rail faces to the edge direction position of the shell, the inner end of the sliding rail faces to the avoidance space direction, the pivoting end of the swing arm is rotatably mounted on the edge of the shell, the sliding block is slidably mounted on the sliding rail, and at least one part of the sliding block is allowed to slide to the avoidance space of the shell.
  2. The internal magnetic control device of claim 1, wherein the slide rail extends to the avoidance space.
  3. The internal magnetic control device of claim 1, wherein the travel of the slider is greater than 12mm.
  4. The internal magnetic control device according to any one of claims 1 to 3, wherein the internal magnetic control device comprises two said connecting rods, two sets of said magnetic elements and two said swing arms, said pivot ends of the two swing arms being adjacent, each set of said magnetic elements being disposed outside of each said swing arm, respectively, opposite ends of each said connecting rod being rotatably mounted to said driven end of each said swing arm and each side of said slider, respectively.
  5. The internal magnetic control device according to claim 4, wherein the housing comprises a bottom shell and a housing cover, the bottom shell having a bottom shell boss and a bottom shell center hole formed in the bottom shell boss, wherein the housing cover has a housing cover boss and a housing cover center hole formed in the housing cover boss, wherein the bottom shell and the housing cover are mounted in such a manner that the bottom shell boss of the bottom shell and the housing cover boss of the housing cover fit against each other so that the bottom shell center hole of the bottom shell and the housing cover center hole of the housing cover correspond to form the center hole of the housing, and the housing space and the peripheral opening are formed between the bottom shell and the housing cover, wherein a side wall of the bottom shell boss of the bottom shell is recessed toward a direction of the bottom shell center hole to form the escape space of the housing.
  6. The internal magnetic control device according to claim 4, wherein the housing includes a bottom shell and a housing cover, the bottom shell having a bottom shell boss and a bottom shell center hole formed in the bottom shell boss, wherein the housing cover has a housing cover boss and a housing cover center hole formed in the housing cover boss, wherein the bottom shell and the housing cover are mounted in such a manner that the bottom shell boss of the bottom shell and the housing cover boss of the housing cover fit each other so that the bottom shell center hole of the bottom shell and the housing cover center hole of the housing cover correspond to form the center hole of the housing, and the housing space and the peripheral opening are formed between the bottom shell and the housing cover, wherein a side wall of the bottom shell boss of the bottom shell is recessed toward a direction of the bottom shell center hole to form a portion of the relief space of the housing, and a side wall of the housing cover boss is recessed toward a direction of the housing cover center hole to form another portion of the space of the housing.
  7. The internal magnetic control device according to any one of claims 1 to 3, wherein the internal magnetic control device further comprises a potential control unit including a circuit board and a sliding potentiometer, wherein the circuit board is fixedly mounted to the housing and held in the housing space, wherein the sliding potentiometer further includes a potentiometer body and a slide bar slidably mounted to the potentiometer body, the potentiometer body being attached to the circuit board, the slide bar being mounted to the slide bar.
  8. The internal magnetic control device of claim 7, wherein the potential control unit further comprises a calibration potentiometer, wherein the calibration potentiometer is mounted to the circuit board and the calibration potentiometer and the sliding potentiometer are connected in series.
  9. The internal magnetic control device of claim 8, wherein the housing has a calibration channel, the calibration potentiometer corresponding to the calibration channel to calibrate the resistive initial position of the internal magnetic control device by operating the calibration potentiometer through the calibration channel.
  10. An exercise apparatus, comprising:
    a machine frame;
    a pedal device, wherein the pedal device is mounted to the equipment rack in a pedal manner;
    a flywheel, wherein the flywheel is rotatably mounted to the equipment rack and is drivably connected to the tread device; and
    the internal magnetic control device of any one of claims 1 to 9, wherein a mounting shaft of the equipment rack is mounted to the central bore of the housing of the internal magnetic control device to mount the internal magnetic control device to the equipment rack and the flywheel is wrapped around the outside of the internal magnetic control device.
  11. The resistance calibration method of the magnetic control device is characterized by comprising the following steps of:
    (a) Measuring the actual power value of a flywheel in a rotating state at a target point, wherein the flywheel in the rotating state cuts a magnetic induction line of the magnetic control device to obtain a load; and
    (b) And adjusting the resistance value of a calibration potentiometer of the magnetic control device so as to enable the actual power value of the flywheel to be consistent with the design power value of the flywheel corresponding to the target point.
  12. The resistance calibration method according to claim 11, wherein in the step (b), the resistance of the calibration potentiometer is adjusted by rotating the calibration potentiometer.
  13. The resistance calibration method according to claim 11, wherein in the step (b), a resistance of the calibration potentiometer inside the magnetic control device is calibrated outside the magnetic control device.
  14. The resistance calibration method according to claim 12, wherein in the step (b), a resistance of the calibration potentiometer inside the magnetic control device is calibrated outside the magnetic control device.
  15. The method of claim 14, wherein in step (b), a tool is allowed to apply force to the calibration potentiometer through a calibration hole of a housing of the magnetic control device to adjust the resistance of the calibration potentiometer.
  16. A magnetic control device, comprising:
    a circuit board;
    the potential control unit comprises a feedback potentiometer and a calibration potentiometer, wherein the feedback potentiometer and the calibration potentiometer are connected through the circuit board, and the feedback potentiometer further comprises a potentiometer main body and a movable part movably arranged on the potentiometer main body; and
    the magnetic control main body comprises a shell, at least one swing arm and at least one group of magnetic elements, wherein the pivoting end of the swing arm is rotatably arranged on the shell, one group of magnetic elements are arranged on the outer side of the swing arm, the circuit board is mounted on the shell, and the movable part of the feedback potentiometer is related to the swing arm.
  17. The magnetic control device of claim 16, wherein the feedback potentiometer and the calibration potentiometer are connected in parallel.
  18. The magnetic control device of claim 16, wherein the feedback potentiometer and the calibration potentiometer are connected in series.
  19. The magnetic control device according to any one of claims 16 to 18, wherein the housing has a housing space and a peripheral opening and a calibration channel communicating with the housing space, the circuit board, the potential control unit and the swing arm are located in the housing space of the housing, respectively, and a set of the magnetic elements are oriented toward the peripheral opening of the housing, the calibration potentiometer corresponding to the calibration channel of the housing.
  20. The magnetic control device according to any one of claims 16 to 18, wherein the housing has a slide rail extending in a direction consistent with a radial direction of the housing, wherein the magnetic control body further comprises at least one slider slidably provided to the slide rail of the housing and at least one connecting rod having opposite ends rotatably mounted to the slider and a driven end of the swing arm, respectively, wherein the slide arm of the slide potentiometer is mounted to the slider.
  21. The magnetic control device according to claim 20, wherein the magnetic control body comprises two swing arms, two sets of the magnetic elements, and two connecting rods, the pivoting ends of the two swing arms being adjacent, each set of the magnetic elements being disposed outside of each swing arm, respectively, and opposite ends of each connecting rod being rotatably mounted to the driven end of each swing arm and each side of the slider, respectively.
CN202280047208.1A 2021-09-19 2022-09-09 Body-building equipment, internal magnetic control device thereof, magnetic control device and resistance value calibration method thereof Pending CN117677426A (en)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
CN2021222972241 2021-09-19
CN2021111024315 2021-09-19
CN202122297224 2021-09-19
CN202111102431 2021-09-19
CN2021112258989 2021-10-21
CN202111225898.9A CN113975711B (en) 2021-10-21 2021-10-21 Magnetic control device and resistance value calibration method thereof
CN2021112253449 2021-10-21
CN202111225344.9A CN113908485A (en) 2021-09-19 2021-10-21 Body-building apparatus and its internal magnetic control device
PCT/CN2022/118142 WO2023040773A1 (en) 2021-09-19 2022-09-09 Fitness equipment and internal magnetic control apparatus thereof, magnetic control apparatus and resistance calibration method therefor

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US20080096725A1 (en) * 2006-10-20 2008-04-24 Keiser Dennis L Performance monitoring & display system for exercise bike
US8825279B2 (en) * 2012-09-11 2014-09-02 Shimano Inc. Bicycle power sensing apparatus
ITUB20159645A1 (en) * 2015-12-17 2017-06-17 Technogym Spa Braking system for exercise machines and relative method of operation.
CN107764178B (en) * 2017-11-06 2020-08-11 武汉航空仪表有限责任公司 Method for debugging linearity of wire-wound potentiometer
CN212166399U (en) * 2020-01-14 2020-12-18 宁波道康智能科技有限公司 Inner magnetic control flywheel resistance adjusting device and combination device
CN113908485A (en) * 2021-09-19 2022-01-11 宁波道康智能科技有限公司 Body-building apparatus and its internal magnetic control device
CN216258932U (en) * 2021-09-19 2022-04-12 宁波道康智能科技有限公司 Body-building apparatus and its internal magnetic control device
CN113975711B (en) * 2021-10-21 2022-12-02 宁波道康智能科技有限公司 Magnetic control device and resistance value calibration method thereof

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