TW201439449A - Electricity-generating feedback braking system - Google Patents

Abstract

An electricity-generating feedback braking system comprises a flywheel, a metal ring, a dynamo assembly, at least one support rack, and at least one brake unit. The metal ring is coupled to the flywheel. The support rack comprises a rotary shaft coupling end and an outer end. The rotary shaft coupling end is coupled to a rotary shaft of the flywheel and the outer end extends to a location adjacent to the metal ring. The brake unit is coupled to the outer end of the support rack and faces toward and is adjacent to the metal ring. The dynamo assembly generates feedback electricity that is supplied through a power control unit to generate output electricity that is fed to the brake unit so that the brake unit generates a magnetic field of force that induces eddy currents on the metal ring to generate a braking force to the flywheel.

Description

Power generation feedback brake system

The invention relates to a damping mechanism, in particular to a power generation feedback brake system applied to a flywheel of a fitness equipment.

Traditional fitness equipment, such as exercise bikes, mainly relies on pedaling to drive the flywheel provided on the exercise bike to generate rotation, and in order to allow the user to withstand appropriate resistance or resistance when pedaling, Mainly through the way of magnetic resistance, the adjustment of the different resistance levels of the exercise bike is provided, so that the user can achieve the effect of exercise and fitness by fighting different resistance or resistance.

In addition, a brake device has been developed in which a flywheel combines a power generating device and a braking device, and the flywheel drives the power generating device to generate electricity, and the braking device generates braking to the flywheel via the power generated by the power generating device.

However, this technique has the disadvantage of incorporating a power generating device on the flywheel, and the braking device is disposed outside the flywheel, and the braking device generates a braking force to the flywheel by using the power provided by the power generating device. However, the combination of a flywheel and a power generating device and the arrangement of the brake device on the outside of the flywheel increases the flywheel volume and requires a large space, resulting in an increase in the space required for the flywheel device.

For example, in the Patent No. M427956 of the Republic of China, an electromagnetic brake device is disclosed. The structure includes a brake disc and an electromagnetic brake unit. The brake disc shaft is coupled to a power mechanism, and the brake disc is rotated by the power mechanism. The electromagnetic brake unit is disposed close to the brake disc, and when the power is applied, the electromagnetic brake unit can generate a magnetic field, thereby causing the brake disc to cut the magnetic field to generate eddy current resistance, so that The user must increase the force to overcome the eddy current resistance, thus achieving a sports fitness effect.

For example, in the Patent No. M395303 of the Republic of China, a plug-in power generating device for a sports car includes a casing, a rotor, an iron ring, a magnet, a steel sheet, a circuit board and a copper piece, and the rotor. The iron ring, the magnet, the silicon steel sheet, the circuit board and the copper sheet are assembled in the casing, and the silicon steel sheet is surrounded by a plurality of coils, and the rotor is convexly provided with an external member protruding from the outside of the casing. Thereby, the hanging member can be hung on any power source to drive the rotor to rotate to generate electricity, so that the elasticity of use can be increased. Moreover, the foregoing structure is extremely simple, and the overall volume can be greatly reduced, and the cost can be relatively reduced. The foregoing structure may include a planetary gear set, and the driving principle thereof may be used to amplify the rotational speed, thereby improving the power generation efficiency of the external power generating device for the sports car.

Another conventional braking device combines a power generating device and a braking device inside the flywheel. Although the space required for the flywheel device can be reduced, the power generating coil of the power generating device and the braking coil of the braking device are all disposed inside the flywheel, so the power generating device When the power supply brake device generates a braking force to the flywheel due to the flywheel, the heat generated when the power generating coil and the brake coil are actuated is not easily dissipated, which is prone to danger.

For example, in the Patent No. M443794 of the Republic of China, a built-in power generation mechanism and a permanent magnet eddy current brake device are disclosed, comprising: an outer rotor having a flywheel and a permanent magnet fixed on its inner circumference; and a fixed frame and an upper side thereof The inner edge of the tile-type armature; a brake mechanism having a magnetically conductive ring; and the outer rotor is driven by a sports equipment transmission wheel, the tile-type armature generates an alternating current three-phase current; The arc-shaped metal piece on the magnetic ring piece generates eddy current and reluctance braking torque; a cooling fan rotates synchronously with the flywheel to remove the eddy current generated by the three-phase alternating current of the armature and the curved metal piece Heat; an adjustment mechanism for adjusting the gap between the curved metal piece and the permanent magnet, thereby adjusting the magnetic flux between them to change the braking resistance of different loads; a controller is generated by the tile type armature The AC three-phase current is converted to a DC current to supply the user's meter settings and the power required to apply the brake adjustment mechanism.

Further, for example, in the Patent No. M303560 of the Republic of China, a magnetic flux ring structure improvement of a eddy current magnetron load device is disclosed, which comprises: a rotor; is composed of a flywheel and a magnetically permeable ring; The inner circumference of the rotor is characterized in that: the bonding wire formed by the magnetically permeable ring around the front and rear interfaces is in a non-perpendicular wedge connection with the end surface of the flywheel body. Thereby, the action of the bonding wire and the magnetic field has only one point or two points at the same time, instead of one line simultaneously, thereby reducing the vibration and noise of the magnetron wheel and improving its service life.

For example, in the Patent No. I373901 of the Republic of China, a brushless permanent magnet motor for eliminating the torque is disclosed. The brushless permanent magnet motor includes a rotor and a stator. The rotor is made up of a plurality of permanent magnet blocks and provides a plurality of magnetic poles. The stator is made up of a plurality of circular silicon steel sheets which are laminated and fastened, and have a plurality of slots on the outer circumference thereof to provide winding wiring. By designing the rotor or the stator of the brushless permanent magnet motor, a deflection magnetic field of a specific oblique angle is respectively generated to effectively eliminate the torque of the brushless permanent magnet motor during low speed operation. The vibration and noise caused by it.

For example, in the Patent No. M361824 of the Republic of China, a rotor device for a permanent magnet generator includes a flywheel, a plurality of permanent magnets, and a positioning ring. The flywheel includes an inner circumferential surface disposed about an axis, and an inner circumferential surface. a vertical bearing surface, a permanent magnet attached to the inner circumferential surface, each permanent magnet includes a first side and a second side spaced apart in the circumferential direction, and a bottom surface of the magnet connecting the bottom edges of the first and second sides The first side has a positioning angle with the bottom surface of the magnet, and the positioning ring includes a plurality of spacers, each of the spacers respectively having a first surface for each permanent magnet to abut, since the first and second sides of the permanent magnet are not connected to the magnet The bottom is vertical and uses the first side of each spacer for each permanent The first side of the magnet abuts, and the bottom surface of each magnet abuts against the top surface of the ring body to achieve the purpose of reducing the torque and positioning the permanent magnet.

In each of the prior patents listed above, an improved technical solution has been proposed for, for example, the improvement of the motor itself or the structure or performance of the generator itself, but the overall efficiency, assembly simplicity, and equipment maintenance focused on the productization. There is still much room for improvement in terms of convenience and other aspects.

In order to effectively overcome the problems of the above-mentioned prior art, the present invention mainly provides a power generation feedback brake system which can be applied to a fitness equipment and has a relatively simple structure, and integrates a generator set, a carrier and a brake unit to present a module. Structure to reduce the space required for flywheel equipment.

The technical means for solving the problem of the present invention provides a power generation feedback brake system, wherein a driving force generated by a pedal mechanism drives a flywheel to rotate through a belt, and the generator set generates feedback power, and is in a metal ring. At least one braking unit is disposed in the vicinity, and the feedback power generated by the genset generates an output power to the braking unit via a power control unit, and the braking unit generates a magnetic field to generate an eddy current in the metal ring. In turn, the flywheel is braked. The metal ring system can be made of a magnetically permeable material or a non-magnetically permeable material.

The generator set is coupled to the rotating shaft of the flywheel, and the braking unit is coupled to a frame. The frame is also coupled to the rotating shaft of the flywheel, so that the generator set, the carrier and the braking unit are integrated to present a modular structure.

In practical applications, the generator set, the carrier and the brake unit can be integrated into one side plate, so that the generator set, the carrier, the brake unit and the side plate are integrated to present a modular structure.

Through the technical means adopted by the present invention, the user is using fitness When the device is in motion, the driving force generated by a pedal mechanism drives the flywheel to rotate through a belt, so that the generator set generates feedback power, and the feedback power generated by the generator set generates an output power through a power control unit. Sent to the braking unit, a braking field is generated by the braking unit to generate an eddy current in the metal ring, thereby braking the flywheel, and effectively utilizing the energy generated by the user during the movement to generate electricity, so that the user is in motion The generated energy can be effectively utilized, and the structure is simple and the equipment is easy to maintain. Through the structural design of the present invention, the generated eddy current path is short, and the generated torque can be large. Furthermore, one or more amplification racks may be expanded in the present invention to increase the braking force generated by the flywheel.

In addition, the generator set, the carrier and the brake unit of the present invention are integrated to present a modular structure, and the structure is simple, and the equipment space required for the flywheel device can be reduced. In practical applications, the generator set, the carrier and the brake unit can be integrated into one side plate to present a modular structure, so that the side plate can be more beautiful than the flywheel device, and the structure of the side plate can be increased. Utilization.

The specific embodiments of the present invention will be further described by the following examples and the accompanying drawings.

1‧‧‧ flywheel

11‧‧‧ shaft

2‧‧‧Metal ring

3‧‧‧Generator

31‧‧‧Rotor

32‧‧‧ Stator

33‧‧‧Power coil set

331‧‧‧Power output

34‧‧‧Power Control Unit

4‧‧‧ Shelf

41‧‧‧ shaft joint

42‧‧‧Outside

5‧‧‧ brake unit

51‧‧‧Brake coil holder

511‧‧‧First extension

512‧‧‧second extension

52‧‧‧ coil

52a‧‧‧ coil

521‧‧‧Wire

5a‧‧‧ brake unit

51a‧‧‧Brake coil holder

511a‧‧‧First extension

512a‧‧‧second extension

5b‧‧‧ brake unit

51b‧‧‧Brake coil holder

511b‧‧‧First extension

512b‧‧‧second extension

513b‧‧‧Side bracket

52b‧‧‧ coil

5c‧‧‧ brake unit

51c‧‧‧Long Brake Coil

510c‧‧‧ coil winding section

511c‧‧‧First extension

512c‧‧‧second extension

52c‧‧‧ coil

6‧‧‧ side panels

61‧‧‧stator positioning hole

62‧‧‧ Positioning members

7‧‧‧foot mechanism

71‧‧‧ drive belt

8‧‧‧Augmented Shelf

9‧‧Augmented braking unit

V1‧‧‧Returned electricity

V2‧‧‧ output power

1 is a partially exploded perspective view showing a first embodiment of a brake system of the present invention; FIG. 2 is a schematic view showing a combination of a first embodiment of the brake system of the present invention; and FIG. 3 is a view showing a stator of the generator set of the present invention. 4 is a schematic structural view showing a first embodiment of the brake system of the present invention combined with a pedal mechanism; and FIG. 5 is a schematic cross-sectional view showing a first embodiment of the brake system of the present invention; Figure 6 is a plan view showing that the first embodiment of the present invention may also include more than two racks and brake units.

Figure 7 is a partially exploded perspective view showing a second embodiment of the brake system of the present invention; Figure 8 is a schematic view showing the structure of the second embodiment of the brake system of the present invention in combination with a pedal mechanism; and Figure 9 is a view showing the brake unit of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 10 is a schematic structural view showing a second embodiment of a brake unit of the present invention; FIG. 11 is a schematic structural view showing a third embodiment of the brake unit of the present invention; and FIG. 12 is a view showing a brake system of the present invention; A partially exploded perspective view of the third embodiment; and a thirteenth view showing an enlarged view of the brake unit of Fig. 12.

1 to 3, wherein FIG. 1 is a partially exploded perspective view showing the first embodiment of the brake system of the present invention, and FIG. 2 is a schematic view showing the combination of the first embodiment of the brake system of the present invention, and FIG. FIG. 4 is a schematic structural view showing a stator of the brake system of the brake system of the present invention, and FIG. 4 is a schematic structural view showing a first embodiment of the brake system of the present invention combined with a pedal mechanism, and FIG. 5 is a view showing the brake of the present invention. A schematic cross-sectional view of a first embodiment of the system. As shown, the power generation feedback brake system of the present invention includes a flywheel 1, a metal ring 2, a generator set 3, a carrier 4, a brake unit 5, and a pair of side plates 6. The flywheel 1 is rotated by a driving force with a rotating shaft 11 as a center of rotation.

The metal ring 2 is bonded to the flywheel 1. In this embodiment, the metal ring 2 is made of a non-magnetic material, and the non-magnetic material is selected from one of aluminum and copper.

The generator set 3 includes a rotor 31, a stator 32 and a power generating coil set 33. The rotor 31 is fixed to the flywheel 1 and is rotated by the flywheel 1 , and the rotor 31 is composed of a multi-pole permanent magnet, and the stator 32 is fixed to the flywheel 1 The shaft 11 is corresponding to the rotor 31.

The power generating coil group 33 is wound around the stator 32 (as shown in FIG. 3). When the stator 32 is rotated by the rotating shaft 11, the pair of power output ends 331 of the generating coil group 33 outputs a feedback power V1 to one. Power control unit 34. The power control unit 34 can perform voltage and current regulation on the feedback power V1.

The frame 4 has a shaft coupling end 41 and an outer end 42. The shaft coupling end 41 is coupled to the rotating shaft 11 of the flywheel 1 and the outer end 42 extends to the adjacent position of the metal ring 2. The brake unit 5 is coupled to the outer side end 42 of the bracket 4 such that the brake unit 5 faces the inner annulus adjacent to the metal ring 2.

The brake unit 5 includes a brake bobbin 51 and at least one coil 52. The brake bobbin 51 is coupled to the outer side end 42 of the bracket 4 and includes a first extending end 511 and at least one adjacent to the first extending end 511. The two extending ends 512 , the first extending end 511 and the second extending end 512 respectively correspond to the metal ring 2 .

The coil 52 is wound around the brake bobbin 51, and a pair of wires 521 of the coil 52 are electrically connected to the output of the power control unit 34 to receive the adjusted output power V2 generated by the power control unit 34. The brake unit 5 generates a braking force applied to the flywheel 1. In the embodiment of the present invention, the braking unit 5 generates a magnetic field, and generates an eddy current in the metal ring 2, thereby generating a braking force on the flywheel 1.

As shown in Figs. 4 and 5, the flywheel 1 is driven to rotate by a driving belt 71, and the belt 71 is selected from one of a belt or a chain.

When the flywheel 1 rotates, the metal ring 2 and the rotor 31 of the genset 3 rotate accordingly. At this time, the generating coil group 33 of the genset 3 outputs the feedback power V1 to the power control unit 34, and the power control unit 34 generates an output power V2 to the line. The ring 52 causes the brake unit 5 to generate a magnetic field to be applied to the metal ring 2, and the metal ring 2 generates an eddy current, thereby generating a braking force to the flywheel 1.

In the embodiment shown in Figs. 1 to 5, a single bracket 4 and a brake unit 5 will be described as an embodiment. In practical applications, at least one amplification carrier 8 may be further coupled to the rotating shaft 11 of the flywheel 1, as shown in FIG. 6, and at least one amplification braking unit 9 is coupled to the outer end of the amplification carrier 8. And the amplification braking unit 9 also faces the inner annular surface adjacent to the metal ring 2. The combined structure of the augmentation frame 8 can be the same as the carrier 4, and also has a shaft coupling end and an outer end, and the augmentation braking unit 9 is coupled to the outer end of the augmentation frame 8.

Please refer to FIG. 7 and FIG. 8 , wherein FIG. 7 is a partial exploded view showing the second embodiment of the brake system of the present invention, and FIG. 7 is a view showing the structure of the second embodiment of the brake system of the present invention combined with a pedal mechanism. schematic diagram. As shown, the power generation feedback brake system of the present invention further includes a pair of side plates 6.

The side plates 6 are respectively located on both sides of the flywheel 2, and each of the side plates 6 is provided with at least a certain sub-positioning hole 61. Both ends of the stator 32 of the genset 3 are respectively positioned between the two side plates 6 via the stator positioning holes 61 via a plurality of positioning members 62, and at the same time, the frame 4 is fixedly positioned.

As shown in Fig. 8, the flywheel 1 is driven to rotate by a driving belt 71 by a driving force generated by a pedal mechanism 7, and the belt 71 is selected from one of a belt or a chain.

Please refer to FIG. 9 and FIG. 11 , wherein FIG. 9 is a schematic structural view showing a first embodiment of the brake unit of the present invention, and FIG. 10 is a schematic structural view showing a second embodiment of the brake unit of the present invention, and FIG. 11 is a view A schematic structural view of a third embodiment of the brake unit of the present invention is shown. As shown, the brake bobbin 51 of the brake unit 5 includes a first extended end 511 and at least one second adjacent to the first extended end 511. The end 512 is extended and the coil 52 is wound around the brake former 51.

As shown in Fig. 10, in practical applications, the coil 521a of the brake unit 5a can be wound around the first extended end 511a and the second extended end 512 of the brake bobbin 51a at the same time. Further, as shown in Fig. 11, the coil 521b of the brake unit 5b is wound around the second extended end 512b of the brake bobbin 51b, and each of the two ends of the brake bobbin 51a includes a side bracket 513b.

Fig. 12 is a partially exploded perspective view showing a third embodiment of the brake system of the present invention, and Fig. 13 is an enlarged view showing the brake unit 5c in Fig. 12. Compared with the embodiment shown in FIG. 7, the embodiment is similar in structure, except that the brake unit 5c includes an elongated brake bobbin 51c fixedly coupled to the outer side of the bracket 4. 42. The elongated brake bobbin 51c has a coil winding section 510c. Both ends of the elongated brake bobbin 51c may extend one or more extended ends. For example, as shown in FIG. 13, the two ends of the coil winding section 510c respectively extend from a first extending end 511c and a second extending end 512c opposite to the first extending end 511c, and may also be only the coil. One end of the winding section 510c extends out of the first extending end 511c or the second extending end 512c.

A coil 52c is wound around the coil winding section 510c of the elongated brake bobbin 51c. The first extended end 511c has a curved surface facing the inner annular surface adjacent to the metal ring 2. The second extended end 512c also has a curved surface facing the corresponding inner annular surface of the metal ring 2. In this embodiment, the metal ring 2 is made of a magnetic conductive material, and the magnetic conductive material is selected from one of the steel sheets and iron having a good magnetic permeability.

When the flywheel 1 rotates, the metal ring 2 and the rotor 31 of the genset 3 rotate accordingly. At this time, the generating coil group 33 of the genset 3 outputs feedback power to the power control unit, and then the power control unit generates an output power to the coil 52c of the elongated brake bobbin 51c, so that the braking unit 5c is respectively at the first Extended end 511c and second The extended end 512c generates a magnetic field applied to the metal ring 2, and an eddy current is generated by the metal ring 2, thereby generating a braking force to the flywheel 1.

The above-mentioned embodiments are only intended to illustrate the invention, and are not intended to limit the scope of the invention, and other equivalent modifications or substitutions which are not departing from the spirit of the invention are intended to be included in the scope of the appended claims. Inside.

1‧‧‧ flywheel

11‧‧‧ shaft

2‧‧‧Metal ring

3‧‧‧Generator

31‧‧‧Rotor

32‧‧‧ Stator

4‧‧‧ Shelf

41‧‧‧ shaft joint

42‧‧‧Outside

5‧‧‧ brake unit

51‧‧‧Brake coil holder

511‧‧‧First extension

512‧‧‧second extension

52‧‧‧ coil

521‧‧‧Wire

Claims (10)

A power generation feedback braking system is coupled to a flywheel having a rotating shaft, the power generating feedback braking system comprising: a metal ring coupled to the flywheel; a generator set comprising: a rotor fixed to the a flywheel that is rotated by the flywheel; a stator fixed to the rotating shaft and corresponding to the rotor; a generating coil set wound around the stator, the rotor being driven by the flywheel, one of the generating coil sets Outputting a feedback power to the power output end; a carrier having a shaft coupling end and an outer end, wherein the shaft coupling end is coupled to the rotating shaft of the flywheel, and the outer end extends to a position adjacent to the metal ring a brake unit coupled to the outer side end of the bracket and facing adjacent to the metal ring. The power generation feedback brake system according to the first aspect of the patent application, wherein the metal ring is made of a non-magnetic material, and the brake unit comprises: a brake bobbin coupled to the outer side end of the frame, The brake bobbin has one or more extended ends; at least one coil is wound around the one or more extended ends of the brake bobbin, and a pair of wires of the coil are electrically connected to the power control unit for receiving The output power generated by the power control unit causes the braking unit to generate a magnetic field, and an eddy current is generated in the metal ring to generate braking on the flywheel. The power generation feedback brake system according to claim 2, wherein the non-magnetic material is selected from one of aluminum and copper. A power generation feedback brake system according to claim 2, wherein the brake bobbin includes a first extension end and at least one adjacent to the first extension end The second extending end and the second extending end respectively correspond to the metal ring. According to the power generation feedback brake system of claim 1 of the patent application, one or more amplification carriers and one or more amplification braking units coupled to the amplification carrier and facing adjacent to the metal ring are further expanded. The augmentation frame is coupled to the rotating shaft of the flywheel. According to the power generation feedback brake system of claim 1, wherein the metal ring is made of a magnetically permeable material, and the brake unit comprises: one or more elongated brake bobbins combined with the bearing An outer side end of the frame, the elongated brake bobbin has a coil winding section, a first extending end extending from one end of the coil winding section, and a coil winding around the first extending end a second extension end extending from the other end of the section; wherein the coil is wound around the coil winding section; the first extension end has a curved surface facing adjacent to the metal ring; the second extension end It also has a curved surface facing the metal ring. The power generation feedback brake system according to Item 6 of the patent application scope, wherein the metal ring system is selected from the group consisting of a steel sheet and a ferromagnetic material having a good magnetic permeability. The power generation feedback brake system according to the first aspect of the patent application, wherein the rotor is composed of a multi-pole permanent magnet. According to the power generation feedback brake system of claim 1, the pair of side plates are respectively disposed on two sides of the flywheel, and each side plate is provided with at least a certain sub-positioning hole, and the two ends of the stator are respectively A plurality of positioning members position the flywheel between the two side plates via the stator positioning holes, and simultaneously fix the frame. The power generation feedback brake system according to item 1 of the patent application scope includes a power supply a control unit is connected to the power output end of the power generating coil set to receive the feedback power generated by the power generating coil group, and accordingly generate an output power; a pair of wires of the braking unit are electrically connected to the power control unit Receiving the output power generated by the power control unit, causing the braking unit to generate a braking force applied to the flywheel.