Embedded Flywheel Power Generation and Resistance Control System and Integrated Fitness Equipment Power Generation and Resistance System

Description

BACKGROUND OF THE INVENTION

1. Fields of the invention

The present invention relates to the field of fitness equipment, and more particularly, to an embedded flywheel power generation and resistance control system, and an integrated fitness equipment power generation and resistance system.

2. Descriptions of Related Art

Traditional sports fitness equipment such as flywheel bikes, bicycle trainers, and rehabilitation medical devices typically incorporate flywheels and resistance control systems, utilizing moment of inertia for exercise training. However, conventional structures mostly involve adhering magnets to the flywheel rotor plane and fixing power generation coils to the stator with screws, thereby causing problems such as magnetic circuit gaps, magnetic flux attenuation, and time-consuming assembly. This results in low power generation efficiency, large volume, and high manufacturing costs. These factors are unfavorable for mass production and environmental requirements.

On the other hand, with the proliferation of AR/VR reality technologies and network environments, fitness equipment is gradually being applied to virtual reality competitions or remote connection training. However, existing flywheel power generation resistance systems often fail to meet the standardization requirements of reality competitions due to torque variations generated at high and low speeds, resulting in insufficient training and competitive effects.

In summary, existing fitness equipment flywheel power generation and resistance control systems still have defects such as low efficiency, inconvenient assembly, and difficulty in meeting reality competition specifications, urgently requiring further improvement and innovation.

The present invention intends to provide an embedded flywheel power generation and resistance control system and integrated fitness equipment power generation and resistance system to eliminate shortcomings mentioned above.

SUMMARY OF THE INVENTION

One object of the present invention is to provide an embedded flywheel power generation and resistance control system that can reduce the influence caused by starting inertia at low driving speeds and maintain low inertia characteristics at high driving speeds, so as to ensure smoothness and stability during operation. The present invention balances both power generation efficiency and precision of resistance control, thereby enhancing the adaptability and reliability of fitness equipment during use. The present invention also meets operational requirements under diversified exercise scenarios. In addition to having power generation functions, the system also achieves exercise experiences closer to reality competition through resistance adjustment, providing substantial benefits to both fitness and rehabilitation fields.

The present invention also provides an integrated fitness equipment power generation and resistance system that emphasizes characteristics of high efficiency, material saving, and ease of production, while taking into account industrial demands for environmental protection and low carbon emissions. The configuration of the integrated structure effectively simplify redundant assembly and consumables in traditional systems, thereby reducing production costs and enhancing structural strength, while simultaneously ensuring stability of power generation and resistance control effects. It not only meets the requirements of modern fitness equipment for standardization and durability, but can also accommodate usage demands in virtual reality and diverse competitive environments, making it highly practical in both professional training and entertainment applications.

The present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, a preferred embodiment in accordance with the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a structural schematic diagram of the first embodiment of the embedded flywheel power generation and resistance control system of the present invention;

FIG. 2 is a perspective view of the metal flywheel rotor, the magnet rotor, the power generation stator, and the resistance control device in the first embodiment of the present invention;

FIG. 3 is a perspective view of the power generation coils in the first embodiment of the present invention;

FIG. 4 is a front view schematic diagram of the metal flywheel rotor and the magnet rotor in the first embodiment of the present invention;

FIG. 5 is a front view schematic diagram of the power generation stator in the first embodiment of the present invention;

FIG. 6 is a front view schematic diagram of another embodiment of the power generation stator in the first embodiment of the present invention;

FIG. 7 is a schematic diagram of the power generation stator arranged in inner and outer circles in the second embodiment of the present invention;

FIG. 8 is a structural schematic diagram of the third embodiment of the embedded flywheel power generation and resistance control system of the present invention;

FIG. 9 is a perspective view of the EMS of the present invention and a front view schematic diagram of the metal flywheel rotor and the magnet rotor;

FIG. 10 is a structural schematic diagram of the fourth embodiment of the embedded flywheel power generation and resistance control system of the present invention;

FIG. 11 is a perspective view of the resistance coils of the present invention;

FIG. 12 is a structural schematic diagram of the metal flywheel rotor, the magnet rotor, and the power generation stator in the fifth embodiment of the embedded flywheel power generation and resistance control system of the present invention;

FIG. 13A is a schematic diagram of the first implementation state of the resistance coils and the power generation coils of the power generation stator of the present invention;

FIG. 13B is a schematic diagram of the rotor and the magnets in the first implementation state of the resistance coils and the power generation coils of the power generation stator of the present invention;

FIG. 14A is a schematic diagram of the second implementation state of the resistance coils and the power generation coils of the power generation stator of the present invention;

FIG. 14B is a schematic diagram of the rotor and the magnets in the second implementation state of the resistance coils and the power generation coils of the power generation stator of the present invention;

FIG. 15 is a schematic diagram of the implementation state of the embedded flywheel power generation and resistance control system of the present invention;

FIG. 16 is a structural schematic diagram of the metal flywheel rotor, the magnet rotor, the power generation coils, the resistance control device, and the resistance coils in the sixth embodiment of the embedded flywheel power generation and resistance control system of the present invention;

FIG. 17 is a structural schematic diagram of the metal flywheel rotor, the magnet rotor, the power generation coils, the resistance control device, and the resistance coils in the seventh embodiment of the embedded flywheel power generation and resistance control system of the present invention;

FIG. 18 is a structural schematic diagram of the metal flywheel rotor, the magnet rotor, the power generation coils, the resistance control device, and the resistance coils in the eighth embodiment of the embedded flywheel power generation and resistance control system of the present invention;

FIG. 19 is a side cross-sectional view of the integrated fitness equipment power generation and resistance system of the present invention;

FIG. 20 is a perspective view of the power generation resistance stator of the present invention, and

FIG. 21 is a perspective view of the power generation resistance stator with resistance coils wound around its periphery of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Please refer to FIGS. 1 to 6, which show the first embodiment of the embedded flywheel rotor of the present invention. The embedded flywheel power generation and resistance control system of this embodiment comprises a metal flywheel rotor 1, which is driven by an external driving force and rotates on a shaft 4 using a bearing 11, causing the plurality of magnets 21 of a magnet rotor 2 disposed on the metal flywheel rotor 1 to rotate synchronously. The metal flywheel rotor 1 is a metal disc made of magnetic or non-magnetic metal. A power generation stator 3 is disposed on the opposite face of the metal flywheel rotor 1 and has a plurality of power generation coils 31 positioned corresponding to the locations of the magnets 21. The power generation stator 3 is made of silicon steel sheets or metal material. When the magnets 21 rotate with the metal flywheel rotor 1, they generate magnetic field cutting with the power generation coils 31 to output electrical energy. A control circuit device 6 is electrically connected to an energy storage device (not shown) and also controls the power generation stator 3, causing an EMS 51 to generate electromagnetic induction with the metal flywheel rotor 1, thereby forming eddy currents. The magnetic field generated by these eddy currents causes the main magnetic field to deflect, producing resistance opposite to the rotation direction of the metal flywheel rotor 1. Thus, this system provides low or high resistance at low driving speeds while avoiding starting inertia effects, and also has low inertia or high resistance with low inertia characteristics at high driving speeds, meeting specifications for uphill or downhill riding competitions in reality. Additionally, the magnet arrangement shown in FIG. 4 can be either a single circle configuration or inner and outer circle arrangements as shown in FIG. 7.

Meanwhile, when the metal flywheel rotor 1 is driven by external force and rotates on the shaft 4 via the bearing 11, a magnetic attraction effect is generated.

Please refer to FIG. 7, which shows the second embodiment of the present invention, further including power generation coils 31 in inner and outer circles and corresponding inner and outer circle magnet 21 arrangements.

Please refer to FIG. 8, which shows the third embodiment of the present invention. In this embodiment, the resistance control device 5 is an EMS 51, with EMS 51 disposed at positions on both sides of the metal flywheel rotor 1. The type of EMS 51 is shown in FIG. 9.

Furthermore, in the embedded flywheel power generation and resistance control system of the present invention, the plurality of power generation coils 31 can be connected in series with switching elements to eliminate the cogging phenomenon (Cogging Torque) when the magnets 21 approach or move away. In addition, the metal flywheel rotor 1 can also be provided with heat dissipating fins arranged around its axis to achieve heat dissipation effects during rotation.

Please refer to FIG. 10, which shows the fourth embodiment of the present invention. In this embodiment, the outer periphery of the metal flywheel rotor 1 extends toward one side to form a surrounding extension part 12, thereby forming an accommodation space 13 on that side. On the wall surface of one side of the accommodation space 13, a plurality of magnets 21 are arranged around the axis of the metal flywheel rotor 1. The power generation stator 3 has its axis disposed through shaft 4 and is positioned within the accommodation space 13, with a plurality of power generation coils 31 arranged around the face facing the metal flywheel rotor 1, corresponding to the magnets 21. The resistance control device 5 consists of a plurality of resistance coils 52. Please also refer to FIG. 11, where the resistance coils 52 include an iron core 521 and an annular coil 522 wound around its exterior, and are embedded or integrally formed on the face of the power generation stator 3 facing the metal flywheel rotor 1.

Please refer to FIGS. 10 to 14B, where FIG. 12 shows the fifth embodiment derived from the fourth embodiment of FIG. 10. In this embodiment, the outer periphery of the metal flywheel rotor 1 extends toward both sides to form extension parts 12, with power generation stators 3 respectively disposed within the accommodation spaces 13 on both sides. In this way, the magnets 21 on both sides of the metal flywheel rotor 1 can simultaneously interact with the power generation coils 31 on both sides to enhance power generation efficiency, and further strengthen the resistance effect through the resistance coils 52 on both sides. FIG. 13A shows the first implementation state of the resistance coils and the power generation coils of the power generation stator, where the resistance coils 52 are fixed to the outer periphery of the power generation stator 3, generating eddy currents through relative interaction with the extension part 12 during rotation, thereby providing reverse resistance. In this configuration, the power generation coils 31 can also function as motor coils, as well as resistance coils 52. When the power generation coils 31 function as motor coils, their electrical power is supplied externally. FIG. 13B is a schematic diagram of the rotor and magnets in the first implementation state of the resistance coils and the power generation coils. FIG. 14A shows the second implementation state of the resistance coils and the power generation coils of the power generation stator, where the resistance coils 52 are fixed to the outer periphery of the power generation stator 3, generating eddy currents through relative interaction with the extension part 12 during rotation, thereby providing reverse resistance. In this configuration, the power generation coils 31 and the resistance coils 52 can also be interchanged so that the power generation coils 31 function as resistance coils and the resistance coils 52 function as power generation coils, or both the power generation coils 31 and the resistance coils 52 can function as power generation coils simultaneously, with the resistance device installed externally to the flywheel to provide more flexible application methods. FIG. 14B is a schematic diagram of the rotor and the magnets in the second implementation state of the resistance coils and the power generation coils.

Please refer to FIG. 16, which shows a structural schematic of the metal flywheel rotor 1, the magnet rotor 2, the power generation coils 31, the resistance control device 5, and the resistance coils 52 of the sixth embodiment of the present invention. This embodiment is driven by a hub motor, which provides relatively stable power generation with stronger output that can stably supply electric bicycles. In this embodiment, the power generation coils 31 can be configured with or without iron cores, the magnet rotor 2 can also be motor magnets, and the resistance coils 52 can function as motor coils.

Please refer to FIG. 17, which shows a structural schematic of the metal flywheel rotor 1, the magnet rotor 2, the power generation coils 31, the resistance control device 5, and the resistance coils 52 of the seventh embodiment of the present invention. This embodiment further includes the structure of a pulley and fixed frame, where the resistance coils 52 can function as motor coils, and the power generation coils 31 can be configured with or without iron cores.

Please refer to FIG. 18, which shows a structural schematic of the metal flywheel rotor 1, the magnet rotor 2, the power generation coils 31, the resistance control device 5, and the resistance coils 52 of the eighth embodiment of the present invention. In this embodiment, the magnets 21 can be a single magnet assembled through both left and right sides, or can be configured with one magnet on each of the left and right sides, where the resistance coils 52 can function as motor coils, and the power generation coils 31 can be configured with or without iron cores.

From the above description, the embedded flywheel power generation and resistance control system of the present invention, through the structures and configurations of the aforementioned embodiments, can effectively generate power and produce resistance. It can be applied to bicycle trainers (as shown in FIG. 15) and other exercise equipment using flywheel mechanisms (such as rowing machines, not shown in the figures). At low driving speeds, it can still provide low or high resistance without being affected by starting inertia, and at high driving speeds, it also has the functionality of low resistance with low inertia, or high resistance with low inertia.

Please refer to FIGS. 19 to 21, which show the integrated fitness equipment power generation and resistance system of the present invention. The shaft 4 drives the metal flywheel rotor 1 to rotate through the bearing 11 of the power generation resistance stator 7. When the metal flywheel rotor 1 rotates, power generation is performed through the power generation coils 31 surrounding the plurality of columns 71 on the power generation resistance stator 7 cutting the magnetic field of the plurality of magnets 21. Additionally, electromagnetic resistance is generated between the resistance coils 52 surrounding the plurality of protruding columns 72 on the power generation resistance stator 7 and the side columns 73 having electromagnetic resistance magnetic field circuits disposed on the sides of the protruding columns 72 with the metal flywheel rotor 1, thereby enhancing the resistance braking function.

The integrated fitness equipment power generation and resistance system of the present invention completely adopts magnetic cast iron or related materials, designing a metal flywheel rotor 1 with moment of inertia and a fixed power generation resistance stator 7. The metal flywheel rotor 1 is provided with integrally formed grooves 15 to embed the magnets 21, and has an integrally formed axial pulley 14 for dynamic balance. The power generation resistance stator 7 includes integrally formed columns 71 wound with the power generation coils 31, and has integral structure protruding columns 72 wound with the resistance coils 52. Side columns 73 with electromagnetic resistance magnetic field circuits are provided on at least one side of the protruding columns 72 to enhance power generation resistance efficiency. This system provides multi-phase AC signals to the power generation coils, constituting a permanent magnet synchronous motor.

While we have shown and described the embodiment in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.