Fitness equipment and magnetic control device therein, magnetic control device and resistance value calibration method thereof

Abstract

A fitness equipment and its internal magnetic control device (100), magnetic control device (100A) and its resistance calibration method, wherein the internal magnetic control device (100) includes a slider (20), a connecting rod (40), a magnetic element (50), a swing arm (30) and a housing (10). The two ends of the connecting rod (40) are rotatably mounted on the driven ends (32) of the slider (20) and the swing arm (30), respectively. The magnetic element (50) is disposed on the outside of the swing arm (30). The housing (10) has a central through hole (101), a housing space (102), a peripheral opening (103), a clearance space (104) and a sliding... The rail (105) and the housing space (102) are located outside the central perforation (101). The peripheral opening (103) connects the housing space (102). The clearance space (104) extends from the housing space (102) toward the central perforation (101). The extension direction of the rail (105) is consistent with the radial direction of the housing (10). The pivot end (31) of the swing arm (30) is rotatably mounted on the edge of the housing (10). The slider (20) is slidably mounted on the rail (105). The slider (20) is allowed to slide to the clearance space (104) of the housing (10) to increase the stroke.

Description

Technical Field

[0001] This invention relates to the field of fitness equipment, and particularly to a fitness device and its internal magnetic control device, the magnetic control device and its resistance calibration method. Background Technology

[0002] In recent years, with the continuous development of the social economy and the increasing health awareness of people, more and more people are choosing to exercise at home or in gyms. Among these, fitness equipment such as stationary bikes, elliptical trainers, and rowing machines are the first choice for people to exercise. These fitness equipment share the common feature of providing an internal magnetic control device and a flywheel surrounding the outside of this device. Users exercise by driving the flywheel to rotate. When the flywheel is driven to rotate outside the internal magnetic control device, it cuts the magnetic field lines of the device to obtain a load. To facilitate users in obtaining different fitness effects, the load on the flywheel can be adjusted. This adjustment is achieved by having the internal magnetic control device provide at least one swing arm equipped with a magnetic element. By driving the swing arm to swing, the distance between the magnetic element and the flywheel is adjusted, thereby adjusting the load on the flywheel. Specifically, when the swing arm swings away from the magnetic element, the load on the flywheel is reduced; conversely, when the swing arm swings closer to the magnetic element, the load on the flywheel is increased. How to drive the swing arm to swing within a wider range while allowing the load on the flywheel to be adjusted within a wider range is the technical problem that the inventors of this invention have been committed to solving.

[0003] Another type of fitness equipment provides a magnetic control device, a flywheel, and a drive mechanism. The magnetic control device provides a magnetic field environment, and the flywheel is drivably connected to the drive mechanism. When the user drives the flywheel to rotate within the magnetic field environment of the magnetic control device, the flywheel gains a load by cutting the magnetic field lines of the magnetic control device. The load on the flywheel determines the resistance the user experiences when driving the drive mechanism. A smaller load results in less resistance, allowing the user to drive the mechanism with less effort. Conversely, a larger load results in greater resistance, requiring more effort. Therefore, adjusting the flywheel load adjusts the resistance the user experiences when driving the mechanism.

[0004] The magnetic control device further provides at least one arm element, at least one magnetic element disposed on the arm element, at least one drive unit for driving the arm element, and at least one feedback potentiometer for controlling the drive unit. When the drive unit adjusts the distance between the magnetic element and the flywheel by driving the arm element, the resistance of the feedback potentiometer changes, so that the feedback potentiometer controls the working state of the drive unit according to the resistance change. In turn, the distance between the magnetic element and the flywheel is controlled by controlling the position of the arm element driven by the drive unit. It can be understood that the smaller the distance between the magnetic element and the flywheel, the greater the amount of magnetic field lines cut by the flywheel when rotating, and the greater the load on the flywheel. Conversely, the greater the distance between the magnetic element and the flywheel, the less the amount of magnetic field lines cut by the flywheel when rotating, and the smaller the load on the flywheel.

[0005] Therefore, the position of the magnetic element in the magnetic control device determines the amount of magnetic field lines the flywheel cuts when rotating, thus determining the resistance value exerted by the user when driving the device. A problem with existing magnetic control devices is that errors inherent in the feedback potentiometer itself, as well as errors during its integration into the magnetic control device, lead to poor consistency within a batch of manufactured magnetic control devices. Specifically, errors in the starting and ending positions of the feedback potentiometer's resistance value, ranging from 0% to 5%, result in errors in the starting and ending positions of the magnetic element, also ranging from 0% to 5%. This leads to a maximum magnetic resistance difference of 10% to 20% within the magnetic control device, severely impacting the consistency of a batch of magnetic control devices. Although the error can be reduced by calibrating the resistance of the feedback potentiometer, the feedback potentiometer is integrated inside the magnetic control device, and the difference in the magnetic groups of a batch of magnetic control devices can only be detected after the magnetic control device is assembled. At this time, even if the difference in the magnetic groups of a batch of magnetic control devices is detected, the magnetic control device must be disassembled to calibrate the resistance of the feedback potentiometer. This not only leads to low production efficiency and calibration efficiency of the magnetic control device, but also causes the error of the feedback potentiometer to be introduced again during the reassembly of the magnetic control device after calibration, resulting in an insignificant calibration effect. Summary of the Invention

[0006] One object of the present invention is to provide a fitness equipment and its internal magnetic control device, the magnetic control device and its resistance calibration method, wherein a slider of the internal magnetic control device can drive at least one swing arm to swing when sliding along a track formed by a slide rail, so as to adjust the distance between a set of magnetic elements disposed on the swing arm and a flywheel surrounding the internal magnetic control device, thereby adjusting the load on the flywheel when it is driven to rotate.

[0007] One object of the present invention is to provide a fitness device and its internal magnetic control device, the magnetic control device and its resistance calibration method, wherein a housing of the internal magnetic control device provides a clearance space to allow the slider to have a greater range of travel, thereby enabling the slider to drive the swing arm to swing within a greater range of swing, and thus adjusting the load of the flywheel when it is driven to rotate within a greater load range.

[0008] One object of the present invention is to provide a fitness device and its internal magnetic control device, the magnetic control device and its resistance calibration method, wherein the sliding stroke of the slider can exceed 12mm, or even reach 20mm, thus the slider has a larger stroke range.

[0009] One object of the present invention is to provide a fitness device and its internal magnetic control device, the magnetic control device and its resistance calibration method, wherein the internal magnetic control device allows for calibration of critical positions of the slider without disassembly, thereby improving the production efficiency of the internal magnetic control device and facilitating the control of consistency in a batch of the internal magnetic control device during mass production. For example, the internal magnetic control device allows for calibration of the initial resistance position on the outside of the housing.

[0010] One object of the present invention is to provide a fitness device and its internal magnetic control device, the magnetic control device and its resistance calibration method, wherein the internal magnetic control device provides a sliding potentiometer and a calibration potentiometer connected in series or parallel, and the key position of the slider of the internal magnetic control device can be calibrated by fine-tuning the calibration potentiometer. For example, the initial resistance position of the internal magnetic control device can be calibrated by slightly rotating the calibration potentiometer.

[0011] One object of the present invention is to provide a fitness device and its internal magnetic control device, the magnetic control device and its resistance calibration method, wherein the housing provides a calibration channel, and the calibration potentiometer is located inside the housing corresponding to the calibration channel, so that the initial position of the resistance 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.

[0012] One object of the present invention is to provide a fitness device and a magnetic control device therein, a magnetic control device and a resistance calibration method thereof, wherein the resistance calibration method is capable of accurately calibrating the resistance of a batch of the magnetic control devices.

[0013] One object of the present invention is to provide a fitness device and its internal magnetic control device, the magnetic control device and its resistance calibration method, wherein the resistance calibration method can conveniently calibrate the resistance of a batch of the magnetic control devices.

[0014] One object of the present invention is to provide a fitness equipment and its internal magnetic control device, the magnetic control device and its resistance calibration method, wherein the resistance calibration method allows for convenient and accurate calibration of the resistance of the magnetic control device without disassembling the magnetic control device. Thus, the resistance calibration method can not only significantly improve the production efficiency and calibration efficiency of the magnetic control device, but also significantly improve the consistency of batches of the magnetic control devices.

[0015] One object of the present invention is to provide a fitness device and a magnetic control device therein, a magnetic control device and a resistance calibration method thereof, wherein the resistance calibration method allows the resistance of the magnetic control device to be calibrated externally, so that the magnetic control device does not need to be disassembled when calibrating the resistance of the magnetic control device.

[0016] One object of the present invention is to provide a fitness device and a magnetic control device therein, a magnetic control device and a resistance calibration method thereof, wherein the resistance calibration method provides a calibration potentiometer to calibrate the resistance of a potential control unit of the magnetic control device by means of fine adjustment of the resistance of the calibration potentiometer, thereby calibrating the resistance of the magnetic control device conveniently and accurately.

[0017] One object of the present invention is to provide a fitness device and its internal magnetic control device, a magnetic control device and its resistance calibration method, wherein the housing of the magnetic control device provides a calibration channel through which a calibration potentiometer can be manipulated, thereby allowing the resistance calibration method to finely adjust the resistance of the calibration potentiometer externally to the magnetic control device. For example, the calibration potentiometer can be rotated through the calibration channel of the housing to adjust its resistance and calibrate the resistance of the feedback potentiometer.

[0018] According to one aspect of the present invention, an internal magnetic control device is provided, comprising:

[0019] A slider;

[0020] At least one connecting rod;

[0021] At least one set of magnetic elements;

[0022] At least one swing arm, wherein the swing arm has a pivot end and a driven end corresponding to the pivot end, wherein a set of magnetic elements is disposed on the outer side of the swing arm, wherein the opposite ends of the connecting rod are rotatably mounted to the driven end of the swing arm and the slider, respectively; and

[0023] A housing having a central perforation, a housing space, a peripheral opening, a clearance space, and a slide rail. The housing space is located outside the central perforation, the peripheral opening communicates with the housing space, the clearance space extends from the housing space toward the central perforation, the slide rail extends in the same direction as the radius of the housing, and the outer end of the slide rail faces the edge of the housing, the inner end of the slide rail extends toward the clearance space, 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 into the clearance space of the housing.

[0024] According to one aspect of the invention, the slide rail extends into the clearance space.

[0025] According to one aspect of the invention, the stroke of the slider is greater than 12 mm.

[0026] According to one aspect of the invention, the internal magnetic control device includes two connecting rods, two sets of magnetic elements, and two swing arms, with the pivot ends of the two swing arms adjacent to each other. Each set of magnetic elements is disposed on the outer side of each swing arm, and the opposite ends of each connecting rod are rotatably mounted to the driven end of each swing arm and each side of the slider.

[0027] According to one aspect of the present invention, the outer casing includes a bottom shell and a cover, the bottom shell having a bottom shell boss and a bottom shell central hole formed in the bottom shell boss, wherein the cover has a cover boss and a cover central hole formed in the cover boss, wherein the bottom shell and the cover are mounted such that the bottom shell boss of the bottom shell and the cover boss of the cover fit together, so that the bottom shell central hole of the bottom shell and the cover central hole of the cover correspond to form the central perforation of the outer casing, and the casing space and the peripheral opening are formed between the bottom shell and the cover, wherein the sidewall of the bottom shell boss of the bottom shell is recessed inward toward the bottom shell central hole to form the clearance space of the outer casing.

[0028] According to one aspect of the present invention, the housing includes a bottom shell and a cover, the bottom shell having a bottom shell boss and a bottom shell central hole formed in the bottom shell boss, wherein the cover has a cover boss and a cover central hole formed in the cover boss, wherein the bottom shell and the cover are mounted such that the bottom shell boss of the bottom shell and the cover boss of the cover fit together, such that the bottom shell central hole of the bottom shell and the cover central hole of the cover correspond to form the central perforation of the housing, and the housing space and the peripheral opening are formed between the bottom shell and the cover, wherein the sidewall of the bottom shell boss of the bottom shell is recessed inward toward the bottom shell central hole to form a portion of the clearance space of the housing, and the sidewall of the cover boss of the cover is recessed inward toward the cover central hole to form another portion of the clearance space of the housing.

[0029] According to one aspect of the invention, the internal magnetic control device further includes a potential control unit, the 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 slider slidably mounted on the potentiometer body, the potentiometer body being attached to the circuit board, and the slider being mounted on the slider.

[0030] According to one aspect of the invention, the potential control unit further includes 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.

[0031] According to one aspect of the invention, the housing has a calibration channel, and the calibration potentiometer corresponds to the calibration channel to calibrate the initial position of the resistance value of the internal magnetron device by operating the calibration potentiometer through the calibration channel.

[0032] According to another aspect of the invention, the invention further provides a fitness device comprising:

[0033] One equipment rack;

[0034] A foot pedal device, wherein the foot pedal device is foot-operated and mounted on the equipment rack;

[0035] A flywheel, wherein the flywheel is rotatably mounted to the equipment rack and drivably connected to the pedaling device; and

[0036] An internal magnetron control device, wherein the internal magnetron control device further comprises:

[0037] A slider;

[0038] At least one connecting rod;

[0039] At least one set of magnetic elements;

[0040] At least one swing arm, wherein the swing arm has a pivot end and a driven end corresponding to the pivot end, wherein a set of magnetic elements is disposed on the outer side of the swing arm, wherein the opposite ends of the connecting rod are rotatably mounted to the driven end of the swing arm and the slider, respectively; and

[0041] A housing having a central perforation, a housing space, a peripheral opening, a clearance space, and a slide rail. The housing space is located outside the central perforation, the peripheral opening communicates with the housing space, the clearance space extends from the housing space toward the central perforation, the slide rail extends in the same direction as the radius of the housing, and the outer end of the slide rail faces the edge of the housing, the inner end of the slide rail extends toward the clearance space, wherein the pivot end of the swing arm is rotatably mounted to the edge of the housing, the slider is slidably mounted on the slide rail, and at least a portion of the slider is allowed to slide into the clearance space of the housing, wherein a mounting shaft of the equipment rack is mounted in the central perforation of the housing of the inner magnetic control device to mount the inner magnetic control device to the equipment rack, and the flywheel surrounds the outer side of the inner magnetic control device.

[0042] According to another aspect of the present invention, the present invention provides a resistance calibration method for a magnetically controlled device, wherein the resistance calibration method includes the following steps:

[0043] (a) At a target location, measure the actual power of a rotating flywheel, wherein the rotating flywheel cuts the magnetic field lines of the magnetic control device to obtain a load; and

[0044] (b) Adjust the resistance of a calibration potentiometer of the magnetic control device so that the actual power value of the flywheel is consistent with the design power value of the flywheel corresponding to the target point.

[0045] According to one embodiment of the present invention, in step (b), the resistance value of the calibration potentiometer is adjusted by rotating the calibration potentiometer.

[0046] According to one embodiment of the present invention, in step (b), the resistance value of the calibration potentiometer located inside the magnetic control device is calibrated outside the magnetic control device.

[0047] According to one embodiment of the present invention, in step (b), a tool is allowed to apply force to the calibration potentiometer through a calibration perforation in a housing of the magnetic control device to adjust the resistance of the calibration potentiometer.

[0048] According to another aspect of the invention, the invention further provides a magnetic control device comprising:

[0049] A circuit board;

[0050] A potential control unit, wherein the potential control unit includes a feedback potentiometer and a calibration potentiometer, the feedback potentiometer and the calibration potentiometer being connected via the circuit board, wherein the feedback potentiometer further includes a potentiometer body and a movable portion movably disposed on the potentiometer body; and

[0051] A magnetically controlled body, wherein the magnetically controlled body includes a housing, at least one swing arm and at least one set of magnetic elements, wherein the pivot end of the swing arm is rotatably disposed on the housing, the set of magnetic elements is disposed on the outside of the swing arm, the circuit board is mounted on the housing, and the movable portion of the feedback potentiometer is associated with the swing arm.

[0052] According to one embodiment of the present invention, the feedback potentiometer and the calibration potentiometer are connected in parallel.

[0053] According to one embodiment of the present invention, the feedback potentiometer and the calibration potentiometer are connected in series.

[0054] According to one embodiment of the present invention, the housing has a housing space and a periphery 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 face the periphery opening of the housing, and the calibration potentiometer corresponds to the calibration channel of the housing.

[0055] According to one embodiment of the present invention, the housing has a slide rail extending in the same direction as the radial direction of the housing, wherein the magnetic control body further includes at least one slider and at least one connecting rod, the slider being slidably disposed on the slide rail of the housing, and the opposite ends of the connecting rod being rotatably mounted on the slider and the driven end of the swing arm, respectively, wherein the sliding arm of the feedback potentiometer is mounted on the slider.

[0056] According to one embodiment of the present invention, the magnetic control body includes two swing arms, two sets of magnetic elements and two connecting rods. The pivot ends of the two swing arms are adjacent to each other. Each set of magnetic elements is respectively disposed on the outer side of each swing arm. The opposite ends of each connecting rod are respectively rotatably mounted on the driven end of each swing arm and each side of the slider. Attached Figure Description

[0057] The above and other objects, features, and advantages of the present invention will become more apparent from the more detailed description of the embodiments of this application taken in conjunction with the accompanying drawings. The drawings are provided to further illustrate the invention and form part of the specification. They are used together with the invention to explain its contents but do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same parts or steps.

[0058] Figure 1 This is a schematic diagram of the application environment of an internal magnetic control device according to a preferred embodiment of the present invention, which shows a flywheel being surrounded on the outside of the internal magnetic control device.

[0059] Figure 2 This is a perspective view of the internal magnetic control device according to the above-described preferred embodiment of the present invention.

[0060] Figure 3 This is a perspective view of the internal magnetic control device according to the above-described preferred embodiment of the present invention.

[0061] Figure 4 This is an exploded view of the internal magnetocontrol device according to the above-described preferred embodiment of the present invention.

[0062] Figure 5 yes Figure 4 A magnified diagram of a local location.

[0063] Figure 6 This is an exploded schematic diagram from another perspective of the internal magnetic control device according to the above-described preferred embodiment of the present invention.

[0064] Figure 7 This is a perspective view of the bottom shell of the internal magnetocontrol device according to the above-described preferred embodiment of the present invention.

[0065] Figure 8 This is a perspective view of a housing cover of the internal magnetocontrol device according to the above-described preferred embodiment of the present invention.

[0066] Figure 9 This is a perspective view of a slider of the internal magnetic control device according to the above-described preferred embodiment of the present invention.

[0067] Figure 10 This is a perspective view of the slider of the internal magnetic control device according to the above-described preferred embodiment of the present invention.

[0068] Figure 11A and Figure 11B These are partial structural schematic diagrams illustrating the working process of the internal magnetic control device according to the above-described preferred embodiments of the present invention.

[0069] Figure 12This is a schematic diagram illustrating the resistance calibration principle of the internal magnetron control device according to the above-described preferred embodiment of the present invention.

[0070] Figure 13 This is a perspective view of a fitness equipment according to a preferred embodiment of the present invention, wherein the fitness equipment is equipped with the internal magnetic control device.

[0071] Figure 14A and Figure 14B These are perspective views of a magnetic control device according to a preferred embodiment of the present invention.

[0072] Figure 15A and Figure 15B These are exploded schematic diagrams from different perspectives of the magnetic control device according to the above-described preferred embodiments of the present invention.

[0073] Figure 16 This is a perspective view of the application state of the magnetic control device according to the above-described preferred embodiment of the present invention.

[0074] Figure 17A and Figure 17B These are schematic diagrams illustrating different application states of the magnetic control device according to the above-described preferred embodiments of the present invention.

[0075] Figure 18 This is a schematic diagram of the resistance calibration principle of the magnetic control device according to the above-described preferred embodiment of the present invention.

[0076] Figure 19 This is a schematic diagram of another resistance calibration principle of the magnetic control device according to the above-described preferred embodiment of the present invention.

[0077] Figure 20 This is a perspective view of a magnetic control device according to another preferred embodiment of the present invention.

[0078] Figure 21 This is an exploded view of the magnetic control device according to the above-described preferred embodiment of the present invention.

[0079] Figure 22 This is a schematic diagram illustrating the application environment of the magnetic control device according to the above-described preferred embodiment of the present invention. Detailed Implementation

[0080] Hereinafter, exemplary embodiments according to this application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this application, and not all embodiments of this application. It should be understood that this application is not limited to the exemplary embodiments described herein.

[0081] Appendix Figures 1 to 12An internal magnetoresistive device 100 according to a preferred embodiment of the present invention is shown, wherein the internal magnetoresistive device 100 is configured to provide a magnetic field environment, with... Figure 13 A fitness device is shown, wherein the fitness device is equipped with the internal magnetic control device 100 of the present invention.

[0082] It is worth mentioning that, attached Figure 13 The fitness equipment shown as an elliptical trainer is merely exemplary and does not limit the specific type of fitness equipment described in this invention. For example, in other examples of this invention, the fitness equipment could also be a rowing machine, a stationary bike, etc.

[0083] Continue to refer to the appendix Figure 13 and in conjunction with the appendix Figure 1 The fitness equipment includes an equipment rack 200, a pedal device 300, and a flywheel 400. The pedal device 300 is foot-mounted to the equipment rack 200, and the flywheel 400 is rotatably mounted to the equipment rack 200 and drivably connected to the pedal device 300, with the flywheel 400 surrounding the outer side of the inner magnetic control device 100. Preferably, the inner magnetic control device 100 is mounted to the equipment rack 200 so that the relative position of the inner magnetic control device 100 and the equipment rack 200 remains constant. When the user continuously pedals the pedal device 300, driving 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 lines of the inner magnetic control device 100 to obtain a load, thus allowing the user to achieve their fitness goals.

[0084] It is understood that the load obtained by the flywheel 400 when it is driven to rotate is related to the amount of magnetic field lines cut by the flywheel 400 from the inner magnetic control device 100. The more magnetic field lines the flywheel 400 cuts when it is driven, the greater the load obtained by the flywheel 400. At this time, it takes more effort for the user to step on the pedal device 300. Conversely, the less magnetic field lines the flywheel 400 cuts when it is driven, the smaller the load obtained by the flywheel 400. At this time, it takes less effort for the user to step on the pedal device 300.

[0085] It is worth mentioning that the load obtained by the flywheel 400 when it is driven to rotate is reflected in the resistance value when the user steps on the pedal device 300. The greater the load obtained by the flywheel 400 when it is driven to rotate, the greater the resistance value when the user steps on the pedal device 300. The smaller the load obtained by the flywheel 400 when it is driven to rotate, the smaller the resistance value when the user steps on the pedal device 300.

[0086] To meet different user needs regarding the load on the flywheel 400 of the fitness equipment, the internal magnetic control device 100 of the present invention is configured to adjust the position of the magnetic field lines relative to the flywheel 400. Thus, the closer the magnetic field lines of the internal magnetic control device 100 are to the flywheel 400, the more magnetic field lines the flywheel 400 cuts when driven; conversely, the further the magnetic field lines of the internal magnetic control device 100 are from the flywheel 400, the less magnetic field lines the flywheel 400 cuts when driven. This allows the resistance value of the user pedaling the pedal device 300 to be adjusted.

[0087] For details, please refer to the appendix. Figures 1 to 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.

[0088] The outer casing 10 has a central through-hole 101, a casing space 102, a peripheral opening 103, a clearance space 104, and a slide rail 105. The casing space 102 is located outside the central through-hole 101. The peripheral opening 103 is formed at the periphery of the outer casing 10 and communicates with the casing space 102. The clearance space 104 extends from the casing space 102 toward the central through-hole 101. The slide rail 105 is located in the casing space 102, and the extension direction of the slide rail 105 is consistent with the radial direction of the outer casing 10, such that the outer end 1051 of the slide rail 105 extends toward the edge of the outer casing 10, and the inner end 1052 of the slide rail 105 extends toward the clearance space 104 of the outer casing 10. Preferably, the slide rail 105 is provided to extend to the clearance space 104 of the outer casing 10.

[0089] The housing 10 allows the mounting shaft of the equipment rack 200 to pass through and be held in the central through hole 101 of the housing 10 to securely mount the inner 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 inward toward the flywheel 400.

[0090] The slider 20 is slidably mounted on the slide rail 105 of the housing 10, and the slider 20 is allowed to slide into the clearance space 104 of the housing 10, thus giving the slider 20 a greater range of travel. For example, in the attached... Figures 1 to 11B In this specific example of the internal magnetic control device 100 shown, the stroke of the slider 20 can exceed 12 mm, and can even reach 20 mm.

[0091] Specifically, see the attached document. Figure 11A and Figure 11B The slider 20 has a mounting groove 21, wherein the slide rail 105 of the housing 10 extends to the mounting groove 21 of the slider 20 to allow the slider 20 to mount the slide rail 105 of the housing 10, so that when the slider 20 is driven, the slider 20 can reliably slide along the track formed by the slide rail 105 between the outer end 1051 and the inner end 1052 of the slide rail 105.

[0092] For more specific details, please refer to the appendix. Figure 11A and Figure 11B The slider 20 includes a slider body 22 and two slider arms 23. The two slider arms 23 extend integrally outward from one side of the slider body 22 to form the mounting groove 21 between the slider body 22 and the two slider arms 23. When the slider 20 is installed on the slide rail 105 of the housing 10, the slide rail 105 extends to the mounting groove 21 of the slider 20, so that the slider body 22 fits against the top surface of the slide rail 105 and each slider arm 23 fits against each side of the slide rail 105. This ensures that the slider 20 is reliably mounted on the slide rail 105, thereby preventing the slider 20 from falling off the slide rail 105 when the slider 20 is driven to slide along the track formed by the slide rail 105.

[0093] The swing arm 30 has a pivot end 31 and a driven end 32 corresponding to the pivot end 31. The outer side of the swing arm 30 faces the peripheral opening 103 of the housing 10. A set of magnetic elements 50 is 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. The pivot 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. The other end of the connecting rod 40... The end is rotatably mounted to the slider 20, such that when the slider 20 is driven to slide along the track formed by the slide rail 105 of the housing 10, the slider 20 can apply force to the driven end 32 of the swing arm 30 through the connecting rod 40, so as to allow the swing arm 30 to swing relative to the housing 10 about the pivot end 31 of the swing arm 30, thereby causing the outer side of the swing arm 30 to swing toward the peripheral opening 103 of the housing 10 or toward the peripheral opening 103 of the housing 10.

[0094] 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 inward through the connecting rod 40, so that the swing arm 30 drives the magnetic element 50 to move away from the peripheral opening 103 of the housing 10. Correspondingly, 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 outward through the connecting rod 40, so that the swing arm 30 drives the magnetic element 50 to move towards the peripheral opening 103 of the housing 10.

[0095] Preferably, the swing arm 30 extends curvedly between the pivot end 31 and the driven end 32, making the swing arm 30 arc-shaped, such that the outer shape of the swing arm 30 is approximately the same as the shape of the periphery of the housing 10. Preferably, the magnetic element 50 is arc-shaped, and the inner shape of the magnetic element 50 matches the outer shape of the swing arm 30, so as to reliably position the magnetic element 50 on the outer side of the swing arm 30.

[0096] It is worth mentioning that the way 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 can be disposed on the outside of the swing arm 30 by adhesive bonding, or the magnetic element 50 can be disposed on the outside of the swing arm 30 by embedding.

[0097] It is also worth mentioning that the number of magnetic elements 50 in a group of magnetic elements 50 is not limited in the internal magnetocontrol device 100 of the present invention, for example in the attached Figures 1 to 11B In this specific example of the internal magnetic control device 100 shown, the number of magnetic elements 50 in a group of magnetic elements 50 is three, which are arranged at intervals on the outside of the swing arm 30.

[0098] Continue to refer to the appendix Figures 1 to 11BIn this specific example of the internal magnetic control device 100 of the present invention, the internal magnetic control device 100 includes a slider 20, two swing arms 30, two connecting rods 40, and two sets of magnetic elements 50. The two swing arms 30 are rotatably mounted to the edge of the housing 10 with their pivot ends 31 adjacent to each other, and the driven ends 32 of the two swing arms 30 extend to positions adjacent to the slider 20. One end of each of the two connecting rods 40 is rotatably mounted to the driven ends 32 of the two swing arms 30, and the other end of each of the two connecting rods 40 is rotatably mounted to each side of the slider 20. Each set of magnetic elements 50 is disposed on the outer side of each swing arm 30.

[0099] Reference Appendix Figure 11A and Figure 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 swing arm 30 outward through each connecting rod 40, so that each swing arm 30 drives each set of magnetic elements 50 to move towards the peripheral opening 103 of the housing 10. At this time, the distance between a set of magnetic elements 50 and the flywheel 400 is reduced, thereby increasing the amount of magnetic field lines cut by the inner magnetic control device 100 when the flywheel 400 is driven to rotate, thus increasing the load on the flywheel 400, making it more strenuous for the user to step on the pedal device 300. Correspondingly, 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 swing arm 30 inward through each connecting rod 40, so that each swing arm 30 drives each set of magnetic elements 50 to move away from the peripheral opening 103 of the housing 10. At this time, the distance between a set of magnetic elements 50 and the flywheel 400 is increased, thereby reducing the amount of magnetic field lines cut by the inner magnetic control device 100 when the flywheel 400 is driven to rotate, thus reducing the load obtained by the flywheel 400, making it easier for the user to step on the pedal device 300.

[0100] It is understood 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 the set of magnetic elements 50 and the flywheel 400. At this time, when the flywheel 400 is driven to rotate, it cuts the magnetic field lines of the inner magnetic control device 100 to the maximum extent, thus giving the flywheel 400 the maximum load. That is, the resistance when the user steps on the pedal device 300 is the greatest. Correspondingly, when the slider 20 slides to the inner end 1052 of the slide rail 105 of the housing 10 and enters the clearance space 104 of the housing 10, the swing arm 30 maximizes the distance between the set of magnetic elements 50 and the flywheel 400. At this time, when the flywheel 400 is driven to rotate, it cuts the magnetic field lines of the inner magnetic control device 100 to the minimum extent, thus giving the flywheel 400 the minimum load. That is, the resistance when the user steps on the pedal device 300 is the minimum. Therefore, by providing the clearance space 104 in the housing 10, the slider 20 can have a larger stroke range, thereby giving the swing arm 30 a larger swing range, and thus adjusting the load of the flywheel 400 within a larger load range.

[0101] Continue to refer to the appendix Figures 1 to 11B The outer shell 10 further includes a bottom shell 11 and a shell 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 shell cover 12 has a shell cover boss 121 and a shell cover center hole 122 formed in the shell cover boss 121, wherein the bottom shell 11 and the shell cover 12 are mounted to each other, the bottom shell center hole 112 of the bottom shell 11 and the shell cover center hole 122 of the shell cover 12 correspond to and communicate with each other to form the central through hole 101 of the outer shell 10, the bottom shell boss 111 of the bottom shell 11 and the shell cover boss 121 of the shell cover 12 are fitted together to form the shell space 102 and the peripheral opening 103 between the bottom shell 11 and the shell cover 12, and the shell space 102 and the central through hole 101 are isolated to make them independent.

[0102] The shapes of the bottom shell 11 and the cover 12 define the shape of the outer shell 10, which forms the general appearance of the inner magnetoresistive device 100. In this specific example of the inner magnetoresistive device 100 of the present invention, both the bottom shell 11 and the cover 12 are designed to be disc-shaped, thereby making the outer shell 10 disc-shaped, and thus making the shape of the inner magnetoresistive device 100 match the shape of the flywheel 400.

[0103] It is worth mentioning that the mounting method of the bottom shell 11 and the shell cover 12 of the outer casing 10 is not limited in the internal magnetic control device 100 of the present invention. For example, in the attached Figures 1 to 11B In this specific example of the internal magnetic control device 100 shown, the bottom shell 11 has a plurality of bottom shell mounting holes 113 formed at intervals on the bottom shell bosses 111, and correspondingly, the cover 12 has a plurality of cover mounting holes 123 formed at intervals on the cover bosses 121, wherein each of the bottom shell mounting holes 113 of the bottom shell 11 corresponds to each of the cover mounting holes 123 of the cover 12, so as to allow a screw to be inserted and the bottom shell 11 and the cover 12 to be locked by the engagement of the screw and nut, thus installing the bottom shell 11 and the top cover 12.

[0104] Preferably, the internal magnetic control device 100 further includes a flange 60, the flange 60 having a flange through hole 61 and a plurality of flange mounting holes 62, wherein the flange 60 fits against the shell cover 12, and the flange through hole 61 of the flange 60 corresponds to the central through hole 101 of the outer shell 10, and each of the flange mounting holes 62 of the flange 60 corresponds to each of the shell cover mounting holes 123 of the shell cover 12, so as to allow a screw that passes through the shell cover mounting hole 123 of the shell cover 12 to further pass into the flange mounting hole 62 of the flange 60, thereby locking the bottom shell 11 and the shell cover 12 by the flange 60 in conjunction with the screw and nut.

[0105] Preferably, the outer casing 10 further includes a series of support columns 13, the opposite ends of which extend to the edge of the bottom shell 11 and the edge of the shell cover 12, respectively, to support the edge of the bottom shell 11 and the edge of the shell cover 12. In this way, the support columns 13 can prevent the edge of the bottom shell 11 and the edge of the shell cover 12 from deforming.

[0106] Specifically, see the attached document. Figure 7 and Figure 8 The support column 13 includes a bottom shell support portion 131 and a shell cover support portion 132, wherein the bottom shell support portion 131 extends integrally outward from the edge of the bottom shell 11, and wherein the shell cover support portion 132 extends integrally outward from the edge of the shell cover 12. When the bottom shell 11 and the shell cover 12 are installed together, the bottom shell support portion 131 and the shell cover support portion 132 can abut against each other to support the edge of the bottom shell 11 and the edge of the shell cover 12 by the cooperation of the bottom shell support portion 131 and the shell cover support portion 132.

[0107] When installing the bottom shell 11 and the cover 12, to prevent misalignment between the bottom shell support portion 131 and the cover support portion 132, the free ends of the bottom shell support portion 131 and the cover support portion 132 can be inserted into each other. Specifically, the free end of the bottom shell support portion 131 has a reduced size to form an insertion end 1311, and the free end of the cover support portion 132 has an insertion groove 1321, wherein the insertion end 1311 of the bottom shell support portion 131 can be inserted into the insertion groove 1321 of the cover support portion 132 to avoid misalignment between the bottom shell support portion 131 and the cover support portion 132.

[0108] Preferably, after the bottom shell 11 and the shell cover 12 are installed together so that the bottom shell support portion 131 and the shell cover support portion 132 form the support column 13, the position of the support column 13 corresponds to the gap between two adjacent magnetic elements 50, so as to avoid affecting the displacement of the magnetic elements 50 when the swing arm 30 swings.

[0109] Continue to refer to the appendix Figure 7 and Figure 8 The bottom shell 11 has a recessed center forming a bottom shell boss 111. On opposite sides of the bottom shell 11, a bottom shell boss 111 and a corresponding bottom shell groove 114 are formed. The bottom shell center hole 112 and the bottom shell mounting holes 113 of the bottom shell 11 are connected to the bottom shell groove 114. Similarly, the cover 12 has a recessed center forming a cover boss 121. On opposite sides of the cover 12, a cover boss 121 and a corresponding cover groove 124 are formed. The cover cover center hole 122 and the cover cover mounting holes 123 of the cover 12 are connected to the cover groove 124. After the bottom shell 11 and the cover 12 are installed together, the bottom shell groove 114 of the bottom shell 11 and the cover groove 124 of the cover 12 are located on opposite sides of the outer shell 10. The blocking block for locking the screws of the bottom shell 11 and the cover 12 can be held in the bottom shell groove 114 of the bottom shell 11, and the flange 60 and the nut can be held in the cover groove 124 of the cover 12. In this way, the inner magnetic control device 100 can avoid the screws, nuts and flange 60 from protruding, which is conducive to the thinning of the inner magnetic control device 100.

[0110] Continue to refer to the appendix Figure 7 and Figure 8The bottom shell 11 has two bottom shell grooves 115 formed adjacent to each other on its edge. Correspondingly, the cover 12 has two cover grooves 125 formed adjacent to each other on its edge. When the bottom shell 11 and the cover 12 are installed together, each bottom shell groove 115 of the bottom shell 11 and each cover groove 125 of the cover 12 can correspond to each other. (See attached diagram) Figure 4 and Figure 5 Each of the pivot ends 31 of each swing arm 30 has a protrusion 33 on each of its opposite sides, wherein each of the protrusions 33 of the swing arm 30 is rotatably mounted in the bottom shell groove 115 of the bottom shell 11 and the shell cover groove 125 of the shell cover 12, so that the pivot ends 31 of the swing arm 30 are rotatably mounted in the outer shell 10.

[0111] Preferably, in this specific example of the internal magnetic control device 100 of the present invention, the swing arm 30 may be formed by stamping and bending a sheet metal, so the protrusion 33 of the swing arm 30 is flat. The internal magnetic control device 100 further includes a plurality of cylindrical rotating blocks 70, the middle of which has a mounting hole whose size and shape are matched to the protrusion 33 of the swing arm 30, for mounting the rotating block 70 to the protrusion 33 of the swing arm 30. The rotating blocks 70 are rotatably mounted in the bottom shell groove 115 of the bottom shell 11 and the shell cover groove 125 of the shell cover 12, so that the pivot end 31 of the swing arm 30 is rotatably mounted to the outer shell 10. Optionally, in an alternative example of the internal magnetic control device 100 of the present invention, the protrusion 33 of the swing arm 30 may be configured as cylindrical to allow the protrusion 33 of the swing arm 30 to be directly mounted to the bottom shell groove 115 of the bottom shell 11 or the shell cover groove 125 of the shell cover 12.

[0112] Continue to refer to the appendix Figure 4 , Figure 5 and Figure 7 The slide rail 105 of the outer casing 10 is formed on the bottom casing 11, and the slide rail 105 is provided to extend from the bottom casing boss 111 of the bottom casing 11 toward the edge of the bottom casing 11. In other words, the slider 20 is slidably mounted on the bottom casing 11.

[0113] Preferably, the cover 12 has a limiting body 120, which is provided to extend from the cover boss 121 of the cover 12 toward the edge of the cover 12, wherein the top surface of the slider 20 corresponds to the limiting body 120 of the cover 12, so that the limiting body 120 limits the slider 20 to prevent the slider 20 from falling off the slide rail 105, thereby ensuring the reliability and stability of the internal magnetic control device 100.

[0114] Reference Appendix Figure 4 , Figure 5 and Figure 7 The sidewall of the bottom shell boss 111 of the bottom shell 11 is recessed inward toward the center hole 112 of the bottom shell to form the clearance space 104 of the outer shell 10. Thus, the clearance space 104 of the outer shell 10 communicates with the housing space 102, and the clearance space 104 extends from the housing space 102 toward the center through hole 101. The inner end 1052 of the slide rail 105 extends toward the clearance 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 clearance space 104 of the outer shell 10, allowing the bottom shell boss 111 of the bottom shell 11 to avoid the slider 20. In this way, 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.

[0115] Preferably, the inner end 1052 of the slide rail 105 extends to the clearance space 104 of the housing 10, so as to prevent the slider 20 from disengaging from the slide rail 105 when the slider 20 slides into the clearance space 104 of the housing 10. More preferably, the inner end 1052 of the slide rail 105 can extend to and abut against the side wall of the bottom shell boss 111 of the bottom shell 11.

[0116] Preferably, refer to the appendix Figures 4 to 8A portion of the clearance space 104 of the outer shell 10 is formed in the bottom shell 11, and another portion is formed in the shell cover 12. Specifically, the sidewall of the bottom shell boss 111 of the bottom shell 11 is recessed inward toward the bottom shell center hole 112 to form a portion of the clearance space 104 of the outer shell 10, and the sidewall of the shell cover boss 121 of the shell cover 12 is recessed inward toward the shell cover center hole 122 to form another portion of the clearance space 104 of the outer shell 10. In this way, the bottom shell boss 111 of the bottom shell 11 and the shell cover boss 121 of the shell cover 12 can simultaneously avoid the slider 20. In this way, the slider 20 is allowed to have a larger stroke range, thereby allowing 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.

[0117] Continue to refer to the appendix Figures 1 to 11B The internal magnetic control device 100 further includes a drive unit 80, which is disposed in the housing space 102 of the housing 10 for driving the slider 20 to slide along the track formed by the slide rail 105 of the housing 10.

[0118] Specifically, the drive unit 80 includes a drive motor 81 and a set of reduction gears 82. The drive motor 81 is fixedly mounted on the bottom shell 11, and the two opposite sides of the set of reduction gears 82 are rotatably mounted on the bottom shell 11 and the cover 12, respectively. One of the reduction gears 82 is drivably engaged with an output shaft 811 of the drive motor 81. A row of driven teeth 24 is formed on one side of the slider body 22 of the slider 20, and another reduction gear 82 in the set of reduction gears engages with the driven teeth 24 of the slider 20.

[0119] When the drive motor 81 rotates in one direction to output power via its output shaft 811, the power is transmitted to the slider 20 via a set of reduction gears 82, driving the slider 20 to slide along the track formed by the slide rail 105 of the housing 10 from the outer end 1051 towards the inner end 1052. Correspondingly, when the drive motor 81 rotates in another direction to output power via its output shaft 811, the power is transmitted to the slider 20 via a set of reduction gears 82, driving the slider 20 to slide along the track formed by the slide rail 105 of the housing 10 from the inner end 1052 towards the outer end 1051.

[0120] It is worth mentioning that the type of the drive motor 81 is not limited in the internal magnetic control device 100 of the present invention. For example, the drive motor 81 can be, but is not limited to, a stepper motor or a servo motor.

[0121] Continue to refer to the appendix Figures 1 to 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, and the shell cover 12 further has a shell cover ring 126 and a shell cover notch 127 defined by the shell cover ring 126. After the bottom shell 11 and the shell cover 12 are installed, the bottom shell ring 116 of the bottom shell 11 and the shell cover ring 126 of the shell cover 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 shell cover notch 127 of the shell cover 12 correspond to each other. A movable channel 1023 is formed, the movable channel 1023 connecting 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 oscillatingly held in the outer space 1022, wherein the connecting rod 40 extends from the inner space 1021 through the movable channel 1023 to the outer space 1022, such that the opposite ends of the connecting rod 40 can be rotatably mounted to the driven end 32 of the slider 20 and the swing arm 30.

[0122] Continue to refer to the appendix Figures 1 to 11B The internal magnetic control device 100 further includes a potential control unit 90, which includes a circuit board 91 and a sliding potentiometer 92. The circuit board 91 is mounted on the bottom shell 11 and held in the housing space 102 of the outer shell 10. 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 slide rail 105 of the outer shell 10, the slider 20 causes the sliding arm 922 to move relative to the potentiometer body 921, thereby changing the resistance value of the sliding potentiometer 92.

[0123] It is worth mentioning 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 into and is held in the mounting groove 25 of the slider 20, thus mounting the sliding arm 922 of the sliding potentiometer 92 to the slider 20.

[0124] It is understood that the resistance value of the sliding potentiometer 92 is related to the position of the slider 20 on the slide rail 105 of the housing 10, and 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 determines the load on the flywheel 400 when it is 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 on the flywheel 400 when it is driven to rotate can be determined by detecting the resistance value of the sliding potentiometer 92.

[0125] However, due to inherent errors in the sliding potentiometer 92 itself, as well as mounting errors in the potentiometer body 921 and the sliding arm 922, during mass production of the internal magnetic control device 100 of the present invention, the starting and ending points of the resistance values ​​of the sliding potentiometer 92 in a batch of internal magnetic control devices 100 have errors, typically ranging from 0% to 5%. This results in errors in the starting and ending points of the positions of the magnetic elements 50 in a batch of internal magnetic control devices 100 also ranging from 0% to 5%, ultimately causing a difference in magnetic resistance of 10% to 20% in a batch of internal magnetic control devices 100, leading to poor consistency in a batch of internal magnetic control devices 100. Therefore, to ensure the resistance values ​​of a batch of internal magnetic control devices 100, after the potentiometer body 921 of the sliding potentiometer 921 is mounted on the circuit board 91 and the sliding arm 922 is installed on the slider 20, the sliding potentiometer 921 needs to be tested and calibrated.

[0126] The potential control unit 90 of the internal magnetocontrol device 100 of the present invention further includes a calibration potentiometer 93, which is mounted on the circuit board 91. The calibration potentiometer 93 and the sliding potentiometer 92 are connected in series, and the initial resistance position of the internal magnetocontrol device 100 can be calibrated by adjusting the calibration potentiometer 93. Optionally, in other examples of the internal magnetocontrol device 100 of the present invention, the calibration potentiometer 93 and the sliding potentiometer 92 can be connected in parallel, so that the initial resistance position of the internal magnetocontrol device 100 can be calibrated by adjusting the calibration potentiometer 93.

[0127] Furthermore, the housing 10 has a calibration channel 14 formed in the housing cover 12, wherein the calibration potentiometer 93 is configured corresponding to the calibration channel 14. Thus, without disassembling the internal magnetron control device 100, the initial resistance position of the internal magnetron control device 100 can be calibrated via the calibration channel 14 of the housing 10, significantly improving the resistance calibration efficiency and production efficiency of the internal magnetron control device 100. Specifically, the initial resistance position of the internal magnetron 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 into the calibration channel 14 of the housing 10.

[0128] Reference Appendix Figure 12 The calibration potentiometer 93 calibrates the critical positions (e.g., initial resistance position) of the internal magnetocontrol device 100 based on the following principle: the sliding potentiometer 92 and the calibration potentiometer 93 are connected in series, wherein the parameter... It is the sliding potentiometer 92, with parameters The calibration potentiometer 93 has the following parameters: Parameter A is that when the slider 20 slides to the outer end 1051 of the slide rail 105 of the housing 10, the slider 20 drives the sliding arm 922 to slide to the position of the sliding potentiometer 92; Parameter B is that when the slider 20 slides to the inner end 1052 of the slide rail 105 of the housing 10, the slider 20 drives the sliding arm 922 to slide to the position of the sliding potentiometer 91. It is the distance between point A and the sliding arm 922, parameter It is the distance between point B and the sliding arm 922, parameter and parameters It is dynamic, changing as the sliding arm 922 slides on the sliding potentiometer 92. The parameters... The value of and It changes with the change in the partial pressure value.

[0129] For the internal magnetron control device 100 where the calibration potentiometer 93 is not set, the above parameters satisfy the following conditions: Due to inherent errors in the sliding potentiometer 92 itself, as well as the mounting errors of the potentiometer body 921 and the installation errors of the sliding arm 922, during mass production of the internal magnetic control device 100 of the present invention, The value of the internal magnetic control device 100 has an error, resulting in poor consistency in a batch.

[0130] For the internal magnetron control device 100 with the calibration potentiometer 93 set, the above parameters satisfy the following conditions: ,Right now, The resistance of the calibration potentiometer 93 is adjustable. For example, the resistance of the calibration potentiometer 93 can be adjusted by rotating the calibration potentiometer 93 on the outside of the housing 10 through the calibration channel 14 of the housing 10. That is, the value of parameter Δ can be adjusted, thereby conveniently calibrating the initial position of the resistance value of the internal magnetoresistive device 100 and ensuring the consistency of a batch of internal magnetoresistive devices 100.

[0131] Appendix Figures 14A to 15B A magnetic control device 100A according to another preferred embodiment of the present invention is shown, with... Figures 16 to 17B The illustration shows the application state of the magnetic control device 100A, which describes a flywheel 200A surrounding the periphery of the magnetic control device 100A. When the flywheel 200A is driven to rotate, it can continuously cut the magnetic field lines of the magnetic control device 100A to obtain a load, thus allowing the user who drives the flywheel 200A to rotate to get an exercise.

[0132] It is worth mentioning that, in the appendix Figures 14A to 15B In this specific example of the magnetic control device 100A shown, the magnetic control device 100A is disposed inside the flywheel 200A to form an internal magnetic control device.

[0133] Continue to refer to the appendix Figures 14A to 17B The magnetic control device 100A includes a magnetic control body 10A and a potential control unit 20A disposed in the magnetic control body 10A. Preferably, the potential control unit 20A is disposed inside the magnetic control body 10A.

[0134] Specifically, the magnetically controlled body 10A further includes a housing 11A, at least one swing arm 12A, and at least one set of magnetic elements 13A. 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 on the edge of the housing 11A. A set of magnetic elements 13A is disposed on the swing arm 12A. The flywheel 200A is disposed around the periphery of the housing 11A and can be driven to rotate relative to the housing 11A.

[0135] By driving the swing arm 12A to swing relative to the housing 11A, the distance between a set of magnetic elements 13A and the flywheel 200A can be adjusted, so that the amount by which the flywheel 200A cuts the magnetic field lines of the magnetic control device 100A when it is driven to rotate can be adjusted, thereby adjusting the load on the flywheel 200A. Specifically, when the swing arm 12A swings to a point where the distance between the set of magnetic elements 13A and the flywheel 200A is large, the flywheel 200A cuts less of the magnetic field lines of the magnetic control device 100A when it is driven to rotate, resulting in a smaller load on the flywheel 200A. At this time, the resistance value exerted by the user when driving the flywheel 200A to rotate is reduced, allowing the user to drive the flywheel 200A to rotate more easily. Conversely, when the swing arm 12A swings to a point where the distance between the set of magnetic elements 13A and the flywheel 200A is small, the flywheel 200A cuts more of the magnetic field lines of the magnetic control device 100A when it is driven to rotate, resulting in a larger load on the flywheel 200A. At this time, the resistance value exerted by the user when driving the flywheel 200A to rotate is increased, allowing the user to drive the flywheel 200A to rotate with more effort.

[0136] In other words, the position of the swing arm 12A determines the relative position of a set of magnetic elements 13A and the flywheel 200A, and thus determines the load on the flywheel 200A when it is driven to rotate.

[0137] The potential control unit 20A is configured to allow its resistance to change as the swing arm 12A swings, so that the resistance of the potential control unit 20A provides feedback on the position of the swing arm 12A and the position of a set of magnetic elements 13A relative to the flywheel 200A, thereby providing feedback on the load on the flywheel 200A when it is driven to rotate. In other words, the resistance of the potential control unit 20A, the position of the swing arm 12A, the position of the set of magnetic elements 13A relative to the flywheel 200A, and the load on the flywheel 200A when it is driven to rotate are in a one-to-one correspondence.

[0138] The potential control unit 20A includes a feedback potentiometer 21A and a calibration potentiometer 22A connected to the feedback potentiometer 21A. 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 attached... Figures 14A to 17B In this specific example of the magnetic control device 100A shown, the feedback potentiometer 21A is a sliding potentiometer, such that the movable part 212A forms a sliding arm to be slidably disposed on the potentiometer body 211A.

[0139] The resistance value of the potential control unit 20A is related to the resistance values ​​of the feedback potentiometer 21A and the calibration potentiometer 22A, and the relationship between the resistance value of the potential control unit 20A and the resistance values ​​of the feedback potentiometer 21A and the calibration potentiometer 22A depends on the connection relationship between the feedback potentiometer 21A and the calibration potentiometer 22A. For example, in the attached... Figure 18 In the specific example shown, the feedback potentiometer 21A and the calibration potentiometer 22A are connected in series, while in the attached... Figure 19 In the specific example shown, the feedback potentiometer 21A and the calibration potentiometer 22A are connected in parallel.

[0140] Furthermore, 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 on the housing 11A.

[0141] For example, in the appendix Figures 14A to 17B In this specific example of the magnetic control device 100A shown, the potentiometer body 211A and the calibration potentiometer 22A are respectively disposed on the circuit board 30A. It is worth noting 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 device 100A of the present invention. For example, the potentiometer body 211A of the feedback potentiometer 21A and the calibration potentiometer 22A can be mounted on the circuit board 30A, or the potentiometer body 211A of the feedback potentiometer 21A and the calibration potentiometer 22A can be soldered to the circuit board 30A.

[0142] For the magnetic control device 100A of the present invention, when the user uses the magnetic control device 100A normally, for example, when the user exercises with fitness equipment equipped with the magnetic control device 100A, the resistance value of the calibration potentiometer 22A remains unchanged. That is, the resistance value change of the potential control unit 20A depends only on the resistance value change of the feedback potentiometer 21A. The function of setting the calibration potentiometer 22A in the magnetic control device 100A of the present invention is to calibrate the error caused by the error of the feedback potentiometer 21A in the correspondence between the resistance value of the potential control unit 20A and the position of the swing arm 12A, the position of a set of magnetic elements 13A relative to the flywheel 200A, and the load of the flywheel 200A when it is driven to rotate. By introducing the calibration potentiometer 22A into the potential control unit 20A, the resistance value of the potential control unit 20A can be calibrated, especially the start and end positions of the potential control unit 20A, so as to calibrate the resistance value of the magnetic control device 100A and make the resistance value of a batch of magnetic control devices 100A consistent.

[0143] Reference Appendix Figure 18 The principle behind the calibration potentiometer 22A calibrating the resistance value of the potential control unit 20A and thus calibrating the resistance value of the magnetic control device 100A is as follows: the feedback potentiometer 21A and the calibration potentiometer 22A are connected in series, wherein the parameter It is the feedback potentiometer 21A, with parameters The calibration potentiometer 22A is defined by parameter A, which indicates that the movable part 212A is set to slide to the outermost end of the potentiometer body 211A. Parameter B indicates that the movable part 212A is set to slide to the innermost end of the potentiometer body 211A. When the movable part 212A is in position A, the distance between a set of magnetic elements 13A and the flywheel 200A is minimized; when the movable part 212A is in position B, the distance between the set of magnetic elements 13A and the flywheel 200A is maximized. It is the distance between position A and the active part 212A, parameter It is the distance between position B and the active part 212A, where the parameter and parameters It is dynamic, changing as the position of the movable part 212A slides on the feedback potentiometer 21A, and the parameters change accordingly. and The value of and The partial pressure changes with the change in the partial pressure value, where the parameter , and Conditions met: ,parameter , , and Conditions met: ,Right now, The resistance of the calibration potentiometer 22A is adjustable. Therefore, by adjusting the value of Δ, the resistance of the potential control unit 20A can be easily adjusted to ensure the consistency of a batch of magnetic control devices 100A.

[0144] Continue to refer to the appendix Figures 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 oscillatingly disposed in the housing space 1101A of the housing 11A. A set of magnetic elements 13A is disposed facing the peripheral opening 1102A of the housing 11A. Thus, when the swing arm 12A oscillates in the housing space 1101A toward or away from the peripheral opening 1102A of the housing 11A, the set of magnetic elements 13A can move toward or away from the flywheel 200A. The circuit board 30A is mounted in the housing space 1101A of the housing 11A so that the potential control unit 20A is held in the housing space 1101A of the housing 11A.

[0145] The housing 11A further has a calibration channel 1103A, which connects to the housing space 1101A. The calibration potentiometer 22A of the potential control unit 20A is configured to correspond to the calibration channel 1103A of the housing 11A. Thus, when calibrating the resistance of a batch of magnetic control devices 100A, the resistance of the calibration potentiometer 22A can be adjusted from outside the housing 11A via the calibration channel 1103A without disassembling the magnetic control devices 100A, thereby calibrating the resistance of the potential control unit 20A. In this way, the resistance of the magnetic control devices 100A can be conveniently calibrated, and the resistance of a batch of magnetic control devices 100A can be conveniently calibrated to be consistent. For example, a simple tool (e.g., a screwdriver) can be inserted into the calibration channel 1103A of the housing 11A and act on the calibration potentiometer 22A. By rotating the calibration potentiometer 22A, the resistance value of the calibration potentiometer 22A can be adjusted, thereby completing the calibration of the resistance value of the magnetic control device 100A. Preferably, the calibration potentiometer 22A can extend into the calibration channel 1103A of the housing 11A, or the calibration potentiometer 22A can protrude from the housing 11A through the calibration channel 1103A of the housing 11A.

[0146] The outer casing 11A further has a central through hole 1104A, and the mounting shaft of the equipment rack of the fitness equipment can be mounted in the central through hole 1104A of the outer casing 11A, thereby mounting the magnetic control device 100A to the equipment rack of the fitness equipment.

[0147] The outer casing 11A further has a slide rail 1105A, wherein the slide rail 1105A is located in the casing space 1101A, and the extension direction of the slide rail 1105A is consistent with the radial direction of the outer casing 11A, such that the outer end of the slide rail 1105A extends toward the edge of the outer casing 11A, and the inner end of the slide rail 1105A extends toward the central through hole 1104A of the outer casing 11A. The magnetically controlled body 10A further includes a slider 14A and at least one connecting rod 15A. The slider 14A is slidably mounted on the slide 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. Thus, when the slider 14A is driven to move along the slide 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.

[0148] Specifically, when the slider 14A is driven to slide along the slide rail 1105A of the housing 11A from the outer end to the inner end, the slider 14A pulls the swing arm 12A via the connecting rod 15A to swing away from the peripheral opening 1102A of the housing 11A, thereby increasing the distance between the set of magnetic elements 13A and the flywheel 200A and reducing the load on the flywheel 200A. Correspondingly, when the slider 14A is driven to slide along the slide rail 1105A of the housing 11A from the inner end to the outer end, the slider 14A pushes the swing arm 12A via the connecting rod 15A to swing closer to the peripheral opening 1102A of the housing 11A, thereby reducing the distance between the set of magnetic elements 13A and the flywheel 200A and increasing the load on the flywheel 200A.

[0149] Preferably, the housing 11A further has a clearance space 1106A extending from the housing space 1101A toward the central through hole 1104A. At least a portion of the slider 14A can slide into the clearance space 1106A of the housing 11A, thus allowing the slider 14A to have a larger stroke range, enabling the swing arm 12A to have a larger swing range, thereby adjusting the load of the flywheel 200A over a wider range. For example, in this specific example of the magnetic control device 100A of the present invention, the stroke of the slider 14A can exceed 12 mm, and can even reach 20 mm.

[0150] Preferably, the swing arm 12A extends curvedly between the pivot end 121A and the driven end 122A, making the swing arm 12A arc-shaped, such that the outer shape of the swing arm 12A is approximately the same as the periphery of the housing 11A. Preferably, the magnetic element 13A is arc-shaped, and the inner shape of the magnetic element 13A matches the outer shape of the swing arm 12A, so as to reliably position the magnetic element 13A on the outer side of the swing arm 12A.

[0151] The movable part 212A of the feedback potentiometer 21A is mounted on the slider 14A. Thus, the movable part 212A of the feedback potentiometer 21A and the swing arm 12A are associated through the slider 14A and the connecting rod 15A. When the slider 14A slides along the slide rail 1105A of the housing 11A, the slider 14A can drive the movable part 212A of the feedback potentiometer 21A to slide synchronously, thereby causing a change in the resistance of the potential control unit 20A. At this time, the position of the slider 14A on the slide rail 1105A of the housing 11A and the distance between a set of magnetic elements 13A and the flywheel 200A can be determined based on the resistance of the potential control unit 20A, thereby determining the load of the flywheel 200A when it is driven to rotate.

[0152] It is worth mentioning that the mounting method of the movable part 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 part 212A of the feedback potentiometer 21A can be mounted in the mounting groove 141A of the slider 14A. In this way, when the slider 14A slides along the slide rail 1105A of the housing 11A, the slider 14A can drive the movable part 212A of the feedback potentiometer 21A to slide synchronously.

[0153] Reference Appendix Figures 14A to 17BIn this specific example of the magnetic control device 100A of the present invention, the magnetic control body 10A includes a housing 11A, two swing arms 12A, two sets of magnetic elements 13A, a slider 14A, and two connecting rods 15A. The two swing arms 12A are rotatably mounted on the edge of the housing 11A with their pivot ends 121A adjacent to each other, and the driven ends 122A of the two swing arms 12A extend to positions adjacent to the slider 14A. One end of each of the two connecting rods 15A is rotatably mounted on the driven ends 122A of the two swing arms 12A, and the other end of each of the two connecting rods 15A is rotatably mounted on each side of the slider 14A. Each set of magnetic elements 13A is disposed on the outer side of each swing arm 12A.

[0154] When the slider 14A is driven to slide along the track formed by the slide rail 1105A of the housing 11A from the inner end to the outer end of the slide rail 1105A, the slider 14A pushes each swing arm 12A outward through each connecting rod 15A respectively and synchronously, so that each swing arm 12A drives each set of magnetic elements 13A to move towards the peripheral opening 1102A of the housing 11A. At this time, the distance between a set of magnetic elements 13A and the flywheel 200A is reduced, so that when the flywheel 200A is driven to rotate, the amount of magnetic field lines cut by the magnetic control device 100A increases, thereby increasing the load on the flywheel 200A. At this time, the user can drive the flywheel 200A to rotate with more effort. Correspondingly, when the slider 14A is driven to slide along the track formed by the slide rail 1105A of the housing 11A from the outer end to the inner end of the slide rail 1105A, the slider 14A pulls each swing arm 12A inward through each connecting rod 15A, so that each swing arm 12A drives each set of magnetic elements 13A to move in the direction away from the peripheral opening 1102A of the housing 11A. At this time, the distance between the set of magnetic elements 13A and the flywheel 200A is increased, so that when the flywheel 200A is driven to rotate, the amount of magnetic field lines cut by the magnetic control device 100A is reduced, thereby reducing the load on the flywheel 200A. At this time, the user can drive the flywheel 200A to rotate with less effort. During the above process, the resistance of the potential control unit 20A changes as the slider 14A slides, and the resistance of the potential control unit 20A can accurately reflect the position of the slider 14A to determine the load on the flywheel 200A when it is driven to rotate.

[0155] Further, the outer casing 11A includes a bottom shell 111A and a cover 112A, wherein the bottom shell 111A and the cover 112A can be mounted to each other to form the casing space 1101A and the peripheral opening 1102A between the bottom shell 111A and the cover 112A, and the calibration channel 1103A is formed in the 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 slide rail 1105A of the outer casing 11A is formed in the bottom shell 111A, such that the slider 14A is slidably mounted on the outer casing 11A.

[0156] The magnetic control body 10A further includes a driving part 17A, which is disposed in the housing space 1101A of the housing 11A for driving the slider 14A to slide along the track formed by the slide rail 1105A of the housing 11A.

[0157] Specifically, the drive unit 17A includes a drive motor 171A and a set of reduction gears 172A. The drive motor 171A is fixedly mounted on the bottom shell 111A. The opposite sides of the set of reduction gears 172A are rotatably mounted on the bottom shell 111A and the cover 112A, respectively. One of the reduction gears 172A is drivably engaged with the output shaft of the drive motor 171A, and the other is drivably engaged with the driven teeth 142A of the slider 14A. Thus, the drive motor 171A drives the slider 14A to slide along the slide rail 1105A of the outer shell 11A through the set of reduction gears 172A.

[0158] More specifically, when the drive motor 171A rotates in one direction to output power, the power is transmitted to the slider 14A through a set of reduction gears 172A, driving the slider 14A to slide along the track formed by the slide rail 1105A of the housing 11A from the outer end to the inner end. Correspondingly, when the drive motor 171A rotates in another direction to output power, the power is transmitted to the slider 14A through a set of reduction gears 172A, driving the slider 14A to slide along the track formed by the slide rail 1105A of the housing 11A from the inner end to the outer end.

[0159] It is worth noting that the type of the drive motor 171A is not limited in the magnetic control device 100A of the present invention. For example, the drive motor 171A can be, but is not limited to, a stepper motor or a servo motor. Preferably, the drive motor 171A is connected to the circuit board 30A.

[0160] According to another aspect of the present invention, the present invention further provides a resistance calibration method for the magnetic control device 100A to ensure the consistency of a batch of the magnetic control devices 100A, wherein the resistance calibration method includes the following steps:

[0161] (a) At a target location, measure the actual power value of the rotating flywheel 200A, wherein the rotating flywheel 200A cuts the magnetic field lines of the magnetic control device 100A to obtain a load; and

[0162] (b) Adjust the resistance 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.

[0163] For example, the target location can be an attached point. Figure 18 and attached Figure 19 Position A or position B is shown in the diagram. In other words, in the resistance calibration method of the present invention, firstly, the movable part 212A of the feedback potentiometer 21A is allowed to slide to position A; secondly, the flywheel 200 is driven to rotate relative to the magnetic control device 100A, at which time the flywheel 200A continuously cuts the magnetic field lines of the magnetic control device 100A to obtain a load; thirdly, the actual power value of the flywheel 200A is measured; fourthly, the actual power value of the flywheel 200A and the value of the flywheel 200A at the movable part of the feedback potentiometer 21A are compared. If there is a difference between the design power value of the magnetic control device 100A when it is in position A and the design power value of the magnetic control device 212A when it is in position A, then the resistance value of the magnetic control device 100A measured on the surface has an error relative to the resistance value of the 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 active part 212A of the feedback potentiometer 21A when it is in position A, thus achieving the resistance calibration of the magnetic control device 100A.

[0164] It is understood that in step (a), the actual power value of the flywheel 200A in the rotating state can be measured by a dynamometer.

[0165] Preferably, in step (b), the resistance of the calibration potentiometer 22A can be adjusted by rotating the calibration potentiometer 22A.

[0166] Preferably, in step (b), the calibration potentiometer 22A located inside the magnetic control device 100A can be calibrated externally. For example, the housing 11A of the magnetic control device 100A has the calibration channel 1101A, and the calibration potentiometer 22A corresponds to the calibration channel 1101A. The resistance calibration method allows a tool (e.g., a screwdriver) to apply 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.

[0167] Appendix Figure 20 and Figure 21 A magnetic control device 100B according to another preferred embodiment of the present invention is shown, with... Figure 22 The illustration shows the application state of the magnetic control device 100B, which describes a portion of a flywheel 200B extending into the interior of the magnetic control device 100B and continuously cutting the magnetic field lines of the magnetic control device 100B to obtain a load when the flywheel 200B is driven to rotate, thus allowing the user who drives the flywheel 200B to rotate to get an exercise.

[0168] It is worth mentioning that, in the appendix Figures 20 to 22 In this specific example of the magnetic control device 100B shown, the magnetic control device 100B is disposed at the edge of the flywheel 200B to form an external magnetic control device.

[0169] Continue to refer to the appendix Figures 20 to 22 The magnetic control device 100B includes a magnetic control body 10B and a potential control unit 20B disposed in the magnetic control body 10B. Preferably, the potential control unit 20B is disposed inside the magnetic control body 10B.

[0170] Specifically, the magnetically controlled body 10B further includes a housing 11B, a swing arm 12B, and a set of magnetic elements 13B. 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 on the housing 11B. A set of magnetic elements 13B is disposed on the swing arm 12B. The magnetically controlled body 10B is located at the edge of the flywheel 200B, and the swing arm 12B can swing in a direction away from or close to the edge of the flywheel 200B. Thus, the swing arm 12B drives the set of magnetic elements 13B to move in a position away from or close to the edge of the flywheel 200B.

[0171] By driving the swing arm 12B to swing relative to the housing 11B, the distance between a set of magnetic elements 13B and the flywheel 200B can be adjusted, so that the amount by which the flywheel 200B cuts the magnetic field lines of the magnetic control device 100B when it is driven to rotate can be adjusted, thereby adjusting the load on the flywheel 200B. Specifically, when the swing arm 12B swings to a point where the distance between the set of magnetic elements 13B and the flywheel 200B is large, the flywheel 200B cuts less of the magnetic field lines of the magnetic control device 100B when it is driven to rotate, resulting in a smaller load on the flywheel 200B. At this time, the resistance value exerted by the user when driving the flywheel 200B to rotate is reduced, allowing the user to drive the flywheel 200B to rotate more easily. Conversely, when the swing arm 12B swings to a point where the distance between the set of magnetic elements 13B and the flywheel 200B is reduced, the flywheel 200B cuts more of the magnetic field lines of the magnetic control device 100B when it is driven to rotate, resulting in a larger load on the flywheel 200B. At this time, the resistance value exerted by the user when driving the flywheel 200B to rotate is increased, allowing the user to drive the flywheel 200B to rotate with more effort.

[0172] In other words, the position of the swing arm 12B determines the relative position of a set of magnetic elements 13B and the flywheel 200B, and thus determines the load on the flywheel 200B when it is driven to rotate.

[0173] The potential control unit 20B is configured to allow its resistance to change as the swing arm 12B swings, so that the resistance of the potential control unit 20B provides feedback on the position of the swing arm 12B and the position of a set of magnetic elements 13B relative to the flywheel 200B, thereby providing feedback on the load on the flywheel 200B when it is driven to rotate. In other words, the resistance of the potential control unit 20B, the position of the swing arm 12B, the position of the set of magnetic elements 13B relative to the flywheel 200B, and the load on the flywheel 200B when it is driven to rotate are in a one-to-one correspondence.

[0174] The potential control unit 20B includes a feedback potentiometer 21B and a calibration potentiometer 22B connected to the feedback potentiometer 21B. 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 attached... Figures 20 to 22 In this specific example of the magnetic control device 100B shown, the feedback potentiometer 21B is a rotary potentiometer, such that the moving part forms a rotating arm to be rotatably disposed on the potentiometer body.

[0175] The resistance value of the potential control unit 20B is related to the resistance values ​​of the feedback potentiometer 21B and the calibration potentiometer 22B, and the relationship between the resistance value of the potential control unit 20B and the resistance values ​​of the feedback potentiometer 21B and the calibration potentiometer 22B depends on the connection relationship between the feedback potentiometer 21B and the calibration potentiometer 22B.

[0176] Furthermore, 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 on the housing 11B.

[0177] For example, in the appendix Figures 20 to 22 In this specific example of the magnetic control device 100B shown, the potentiometer body of the feedback potentiometer 21B is connected to the circuit board 30B, and the calibration potentiometer 22B is disposed on the circuit board 30B. It is worth noting 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 on the circuit board 30B, or the calibration potentiometer 22B can be soldered to the circuit board 30B.

[0178] For the magnetic control device 100B of the present invention, when the user uses the magnetic control device 100B normally, for example, when the user exercises with fitness equipment equipped with the magnetic control device 100B, the resistance value of the calibration potentiometer 22B remains unchanged. That is, the change in the resistance value of the potential control unit 20B depends only on the change in the resistance value of the feedback potentiometer 21B. The function of setting the calibration potentiometer 22B in the magnetic control device 100B of the present invention is to calibrate the error caused by the error of the feedback potentiometer 21B in the correspondence between the resistance value of the potential control unit 20B and the position of the swing arm 12B, the position of a set of magnetic elements 13B relative to the flywheel 200B, and the load of the flywheel 200B when it is driven to rotate. By introducing the calibration potentiometer 22B into the potential control unit 20B, the resistance value of the potential control unit 20B can be calibrated, especially the start and end positions of the potential control unit 20B, so as to calibrate the resistance value of the magnetic control device 100B and make the resistance value of a batch of magnetic control devices 100B consistent.

[0179] The principle by which the calibration potentiometer 22B calibrates the resistance value of the potential control unit 20B and thus calibrates the resistance value of the magnetic control device 100B is as follows: the feedback potentiometer 21B and the calibration potentiometer 22B are connected in series, wherein the parameter It is the feedback potentiometer 21B, parameters The calibration potentiometer 22B has parameter A, which indicates that the movable part is set to the outermost position of the potentiometer body, and parameter B, which indicates that the movable part is set to the innermost position of the potentiometer body. When the movable part is in position A, the distance between a set of magnetic elements 13B and the flywheel 200B is minimized; when the movable part is in position B, the distance between the set of magnetic elements 13B and the flywheel 200B is maximized. It is the distance between position A and the active part, parameter It is the distance between position B and the active part, where the parameter and parameters It is dynamic, changing as the position of the moving part slides on the feedback potentiometer 21B, and the parameters... and The value of changes with the partial pressure values ​​of and , where the parameter , and Conditions met: ,parameter , , and Conditions met: ,Right now, The resistance of the calibration potentiometer 22B is adjustable. Therefore, by adjusting the value of Δ, the resistance of the potential control unit 20B can be easily adjusted to ensure the consistency of a batch of magnetic control devices 100B.

[0180] Continue to refer to the appendix Figures 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 oscillatingly disposed in the housing space 1101B of the housing 11B. A set of magnetic elements 13B is disposed facing the peripheral opening 1102B of the housing 11B. The edge of the flywheel 200B can extend through the peripheral opening 1102B of the housing 11B to the housing space 1101B. Thus, when the swing arm 12B oscillates in the housing space 1101B toward or away from the peripheral opening 1102B of the housing 11B, the set of magnetic elements 13B can move toward or away from the flywheel 200B. The circuit board 30B is mounted in the housing space 1101B of the housing 11B so that the potential control unit 20B is held in the housing space 1101B of the housing 11B.

[0181] The housing 11B further has a calibration channel 1103B, which connects to the housing space 1101B. The calibration potentiometer 22B of the potential control unit 20B is configured to correspond to the calibration channel 1103B of the housing 11B. Thus, when calibrating the resistance of a batch of magnetic control devices 100B, the resistance of the calibration potentiometer 22B can be adjusted from outside the housing 11B via the calibration channel 1103B without disassembling the magnetic control devices 100B, thereby calibrating the resistance of the potential control unit 20B. In this way, the resistance of the magnetic control devices 100B can be conveniently calibrated, and the resistance of a batch of magnetic control devices 100B can be conveniently calibrated to be consistent. For example, a simple tool (e.g., a screwdriver) can be inserted into the calibration channel 1103B of the housing 11B and act on the calibration potentiometer 22B. By rotating the calibration potentiometer 22B, the resistance value of the calibration potentiometer 22B can be adjusted, thereby completing the calibration of the resistance value of the magnetic control device 100B. Preferably, the calibration potentiometer 22B can extend into the calibration channel 1103B of the housing 11B, or the calibration potentiometer 22B can protrude from the housing 11B through the calibration channel 1103B of the housing 11B.

[0182] Further, the outer casing 11B includes a bottom shell 111B, a cover 112B, and a cover body 113B. The bottom shell 111B and the cover 112B are mounted to each other to form a casing space 1101B and a peripheral opening 1102B between the bottom shell 111B and the cover 112B, wherein the swing arm 12B is pivotally disposed in the casing space 1101B. The cover body 113B is mounted on the cover 112B to form a casing space 1101B between the cover body 113B and the cover 112B, wherein the circuit board 30B mounted on the cover 112B is held in the casing space 1101B formed between the cover 112B and the cover body 113B. The calibration channel 1103B is formed on the cover 113B, and the calibration potentiometer 22B disposed on the circuit board 30B corresponds to the calibration channel 1103B formed on the cover 113B.

[0183] The magnetically controlled body 10B further includes a driving unit 17B, which is disposed in the housing space 1101B of the housing 11B to drive the swing arm 12B to swing relative to the housing 11B.

[0184] Specifically, the drive unit 17B further includes a drive motor 171B, a set of reduction gears 172B, a first drive arm 173B, and a second drive arm 174B. The drive motor 171B is fixedly mounted on the bottom shell 111B of the housing 11B. The opposite sides of the set of reduction gears 172B are rotatably mounted on the bottom shell 111B and the cover 112B of the housing 11B, respectively. One of the reduction gears 172B is drivably connected to the output shaft of the drive motor 171B. The middle portion of the first drive arm 173B is rotatably... Mounted on the housing 11B, and one end of the first drive arm 173B is drivably connected to one of the reduction gears 172B in a set of reduction gears 172B, wherein one end of the second drive arm 174B is rotatably mounted to the other end of the second drive arm 174B, and the other end of the second drive arm 174B is rotatably mounted to the driven end 122B of the swing arm 12B, so that the drive motor 171B drives the swing arm 12B to swing relative to the housing 11B through a set of reduction gears 172B, the first drive arm 173B and the second drive arm 174B.

[0185] More specifically, when the drive motor 171B rotates in one direction to output power, the power is transmitted to the swing arm 12B through a set of reduction gears 172B, the first drive arm 173B, and the second drive arm 174B, allowing the swing arm 12B to swing towards the flywheel 200B, thereby increasing the load on the flywheel 200B during rotation. Conversely, when the drive motor 171B rotates in another direction to output power, the power is transmitted to the swing arm 12B through a set of reduction gears 172B, the first drive arm 173B, and the second drive arm 174B, thereby allowing the swing arm 12B to swing away from the flywheel 200B, thereby reducing the load on the flywheel 200B during rotation.

[0186] It is worth mentioning that the type of the drive motor 171B is not limited in the magnetic control device 100B of the present invention. For example, the drive motor 171B can be, but is not limited to, a stepper motor or a servo motor. Preferably, the drive motor 171B is connected to the circuit board 30B.

[0187] Furthermore, the movable part of the feedback potentiometer 21B is mounted on the first drive arm 173B of the drive unit 17B. Thus, the drive unit 17B associates the movable part of the feedback potentiometer 21B with the swing arm 12B. When the drive motor 171B drives the swing arm 12B to swing through a set of reduction gears 172B, the first drive arm 173B, and the second drive arm 174B, the first drive arm 173B can drive the movable part to rotate relative to the potentiometer body, thereby causing a change in the resistance of the potential control unit 20B. At this time, the distance between the set of magnetic elements 13B and the flywheel 200B can be determined based on the resistance of the potential control unit 20B, thereby determining the load of the flywheel 200B when it is driven to rotate.

[0188] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and any variations or modifications may be made to the implementation of the present invention without departing from the stated principles.

Claims

1. An internal magnet control device, characterized by, include: A slider; At least one connecting rod; At least one set of magnetic elements; At least one swing arm, wherein the swing arm has a pivot end and a driven end corresponding to the pivot end, the swing arm extends curvedly between the pivot end and the driven end to make the swing arm arc-shaped, wherein a set of magnetic elements is disposed on the outside of the swing arm, wherein the opposite ends of the connecting rod are rotatably mounted to the driven end of the swing arm and the slider, respectively. An outer casing, wherein the outer casing has a central perforation, a casing space, a peripheral opening, a clearance space, and a slide rail, the casing space being located outside the central perforation, the peripheral opening communicating with the casing space, the clearance space extending from the casing space toward the central perforation, the slide rail extending in the same direction as the radial direction of the outer casing, and the outer end of the slide rail facing the edge of the outer casing, the inner end of the slide rail extending toward the clearance space, wherein the pivot end of the swing arm is rotatably mounted to the edge of the outer casing, the slider is slidably mounted to the slide rail, and at least a portion of the slider is allowed to slide into the clearance space of the outer casing; as well as A potential control unit, wherein the potential control unit includes a circuit board, a sliding potentiometer, and a calibration potentiometer, the circuit board being fixedly mounted to the housing, the sliding potentiometer including a potentiometer body and a sliding arm slidably mounted on the potentiometer body, the potentiometer body being attached to the circuit board, the sliding arm being mounted to the slider, the calibration potentiometer being attached to the circuit board and connected to the potentiometer body, the housing having a calibration channel, and the calibration potentiometer corresponding to the calibration channel to allow calibration of the resistance value of the calibration potentiometer located inside the internal magnetron control device from outside the internal magnetron control device without disassembling the internal magnetron control device.

2. The internal magnetic control device according to claim 1, wherein the slide rail extends into the clearance space.

3. The internal magnetic control device according to claim 1, wherein the stroke of the slider is greater than 12 mm.

4. The internal magnetic control device according to any one of claims 1 to 3, wherein the internal magnetic control device comprises two connecting rods, two sets of magnetic elements and two swing arms, the pivot ends of the two swing arms are adjacent to each other, each set of magnetic elements is respectively disposed on the outside of each swing arm, and the opposite ends of each connecting rod are respectively rotatably mounted on the driven end of each swing arm and each side of the slider.

5. The internal magnetic control device according to claim 4, wherein the outer shell comprises a bottom shell and a shell cover, the bottom shell having a bottom shell boss and a bottom shell central hole formed in the bottom shell boss, wherein the shell cover has a shell cover boss and a shell cover central hole formed in the shell cover boss, wherein the bottom shell and the shell cover are mounted such that the bottom shell boss of the bottom shell and the shell cover boss of the shell cover fit together, so that the bottom shell central hole of the bottom shell and the shell cover central hole of the shell cover correspond to form the central perforation of the outer shell, and the shell space and the peripheral opening are formed between the bottom shell and the shell cover, wherein the sidewall of the bottom shell boss of the bottom shell is recessed inward toward the bottom shell central hole to form the clearance space of the outer shell.

6. The internal magnetic control device according to claim 4, wherein the outer shell comprises a bottom shell and a shell cover, the bottom shell having a bottom shell boss and a bottom shell central hole formed in the bottom shell boss, wherein the shell cover has a shell cover boss and a shell cover central hole formed in the shell cover boss, wherein the bottom shell and the shell cover are mounted such that the bottom shell boss of the bottom shell and the shell cover boss of the shell cover fit together, so that the bottom shell central hole of the bottom shell and the shell cover central hole of the shell cover correspond to form the central perforation of the outer shell, and the shell space and the peripheral opening are formed between the bottom shell and the shell cover, wherein the sidewall of the bottom shell boss of the bottom shell is recessed in the direction of the bottom shell central hole to form a part of the clearance space of the outer shell, and the sidewall of the shell cover boss of the shell cover is recessed in the direction of the shell cover central hole to form another part of the clearance space of the outer shell.

7. A fitness equipment, characterized in that, include: One equipment rack; A foot pedal device, wherein the foot pedal device is foot-operated and mounted on the equipment rack; A flywheel, wherein the flywheel is rotatably mounted to the equipment rack and drivably connected to the pedaling device; as well as According to any one of claims 1 to 6, an internal magnetoresistive device is wherein a mounting shaft of the equipment rack is mounted in the central through hole of the housing of the internal magnetoresistive device to mount the internal magnetoresistive device to the equipment rack, and the flywheel surrounds the outside of the internal magnetoresistive device.

8. A magnetic control device, characterized in that, include: A circuit board; A potential control unit, wherein the potential control unit includes a feedback potentiometer and a calibration potentiometer, the feedback potentiometer and the calibration potentiometer being connected via the circuit board, wherein the feedback potentiometer further includes a potentiometer body and a movable portion movably disposed on the potentiometer body; and A magnetically controlled body includes a housing, at least one swing arm, and at least one set of magnetic elements. The swing arm has a pivot end and a driven end corresponding to the pivot end. The swing arm extends curvedly between the pivot end and the driven end to form an arcuate shape. The pivot end of the swing arm is rotatably disposed on the housing. The set of magnetic elements is disposed on the outer side of the swing arm. A circuit board is mounted on the housing. The movable portion of a feedback potentiometer is associated with the swing arm. The housing has a housing space and a calibration channel communicating with the housing space. The circuit board, the potentiometer control unit, and the swing arm are respectively located in the housing space of the housing. The calibration potentiometer corresponds to the calibration channel of the housing, allowing a tool to apply force to the calibration potentiometer through the calibration channel of the housing, thereby calibrating the resistance of the calibration potentiometer located inside the magnetically controlled device from the outside of the magnetically controlled device without disassembling the magnetically controlled device.

9. The magnetic control device according to claim 8, wherein the feedback potentiometer and the calibration potentiometer are connected in parallel.

10. The magnetic control device according to claim 8, wherein the feedback potentiometer and the calibration potentiometer are connected in series.

11. The magnetic control device according to any one of claims 8 to 10, wherein the housing has a slide rail extending in the same direction as the radius of the housing, wherein the magnetic control body further includes at least one slider and at least one connecting rod, the slider being slidably disposed on the slide rail of the housing, and the opposite ends of the connecting rod being rotatably mounted on the slider and the driven end of the swing arm, respectively, wherein the feedback potentiometer is a sliding potentiometer, and the sliding arm of the sliding potentiometer is mounted on the slider.

12. The magnetic control device according to claim 11, wherein the magnetic control body includes two swing arms, two sets of magnetic elements and two connecting rods, the pivot ends of the two swing arms are adjacent to each other, each set of magnetic elements is respectively disposed on the outside of each swing arm, and the opposite ends of each connecting rod are respectively rotatably mounted on the driven end of each swing arm and each side of the slider.

13. A resistance calibration method for a magnetically controlled device, characterized in that, The resistance calibration method is used to calibrate the resistance value of the magnetic control device as described in claim 8, wherein the resistance calibration method includes the following steps: (a) At a target location, the actual power value of a rotating flywheel is measured, wherein the rotating flywheel cuts the magnetic field lines of the magnetic control device to obtain a load; and (b) Adjust the resistance of a calibration potentiometer of the magnetic control device to make the actual power value of the flywheel consistent with the design power value of the flywheel corresponding to the target point, wherein in this step, a tool is allowed to apply force to the calibration potentiometer through the calibration channel of the housing, so as to calibrate the resistance of the calibration potentiometer located inside the magnetic control device from the outside of the magnetic control device without disassembling the magnetic control device.

14. The resistance calibration method according to claim 13, wherein in step (b), the resistance of the calibration potentiometer is adjusted by rotating the calibration potentiometer.

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