TWI711759B - Device for use in generating electric power and braking, kit and brake unit of same - Google Patents

Abstract

A device for use in generating electric power and braking, a kit and a brake unit of the same are provided. A brake body in the brake unit includes a plurality of brake blocks. The brake unit has an electromagnetic air gap which is adjustable and controllable in high precision . Therefore, the tolerance of the electromagnetic air gap between the brake unit and the wheel is made small, even without increasing the machining precision and costs of the brake unit, thereby enhancing resistance precision.

Description

Device for power generation and braking, assembly kit and braking unit

The present invention relates to a device, an assembly kit and its braking unit, and more particularly to a device for power generation and braking, an assembly kit and its braking unit.

As shown in FIG. 1, the conventional power generating device 1 causes the power generating unit 3 to continuously generate alternating current by rotating a wheel body 2, and converts the alternating current into direct current through a rectifier 4, and supplies it to the control panel 5. Since the control panel 5 only needs a small amount of power to operate, a high-power resistor 6 is additionally used to consume excess power. Therefore, such a configuration will cause the problem of power waste.

In addition, the conventional power generating device 1 arranges the magnets of the wheel body 2 and the teeth of the power generating unit 3 in an unpaired manner to reduce the apparent degree of cogging torque; however, when the magnet of the wheel body 2 When the teeth of the power generating unit 3 are arranged in an unpaired manner, due to uneven internal torsion distribution, vibration in the rotation direction is likely to occur, so that the power generating device 1 is easily damaged and electromagnetic noise is easily generated.

Based on the principle of electromagnetic braking, the wheel body can be decelerated to achieve the braking effect. However, high-precision braking force often requires the combination of very high-precision components to be achieved, which leads to high costs.

An object of the present invention is to provide a brake unit with adjustable electromagnetic air gap and a power generation and brake device with the brake unit.

Another object of the present invention is to provide a braking unit with good resistance accuracy based on a high-precision electromagnetic air gap, and a power generation and braking device with the braking unit.

In order to achieve the above and other objectives, the present invention proposes a device for power generation and braking, including: a wheel body, a stator unit, and a braking unit. The wheel system is rotatably arranged on a shaft, and the wheel body includes: an outer ring part ringed around the edge of the wheel body, and arranged concentrically with the outer ring part and interposed between the outer ring part and the shaft rod Between an inner ring portion and a plurality of permanent magnets arranged on one of the outer ring portion and the inner ring portion facing inward. The stator unit includes: a stator body, a plurality of first teeth ringed on the outer peripheral surface of the stator body and protruding radially outward, and a plurality of power generating coils wound around the first teeth, and The first tooth portion is arranged opposite to the permanent magnets. The braking unit is fixed to the stator unit and includes: a braking body arranged concentrically with respect to the stator body, a plurality of second tooth portions which are arranged on the outer peripheral surface of the braking body and protrude radially outward, and are wound around The plural brake coils of the second teeth, wherein the brake system is surrounded and assembled by plural brake blocks to form a ring.

In an embodiment of the present invention, the brake pads of the brake body are assembled by a plurality of coupling parts and a frame fixed to the stator unit. The frame has a plurality of coupling holes, and the brake pads are There are a plurality of limit holes corresponding to the coupling holes, and the limit holes define the displacement degree of the corresponding brake block relative to the shaft, and each of the coupling parts is coupled to the corresponding limit hole Corresponding to the combined hole to fix the position of each brake block after adjustment.

In an embodiment of the present invention, the brake pads extend in an arc shape, and the corresponding center angles are the same relative to the lower shaft.

In an embodiment of the present invention, the number of the second teeth on each brake pad may be at least two.

In an embodiment of the present invention, the braking system of the braking unit is arranged between the outer ring portion and the inner ring portion, and the stator system of the stator unit is arranged between the inner ring portion and the shaft In the meantime, the stator system directly faces the permanent magnets arranged on the inner surface of the inner ring.

In an embodiment of the present invention, the bottom surface of the wheel body has a plurality of through holes, and one end of the connecting members is exposed from the through holes.

In an embodiment of the present invention, the braking system of the braking unit is arranged between the inner ring portion and the shaft, and the stator system of the stator unit is arranged between the outer ring portion and the inner ring portion In the meantime, the main stator system faces the permanent magnets arranged on the inner surface of the outer ring portion.

In an embodiment of the present invention, the bottom surface of the wheel body has a plurality of through holes, and one end of the connecting members is exposed from the through holes.

In order to achieve the above and other objectives, the present invention provides a brake unit for braking a wheel body rotatably arranged on a shaft. The wheel body includes a convex that extends axially and is concentric with the shaft. In a ring structure, the brake unit includes a brake body, a plurality of second teeth, and a plurality of brake coils. The braking system consists of a plurality of brake pads surrounded and assembled in a ring shape. The second tooth parts are ringed on the outer peripheral surface of the brake body and protrude radially outward. The brake coils are respectively wound around the second tooth portions.

In an embodiment of the present invention, the brake unit includes a frame and a plurality of coupling parts, the frame has a plurality of coupling holes for the corresponding coupling parts to pierce and fix, and the brake blocks have corresponding A plurality of limit holes such as the coupling hole, by fixing the axial position of the coupling parts and each of the limit holes having a larger diameter than each coupling hole, define the displacement of each brake block relative to the shaft degree.

In an embodiment of the present invention, each of the coupling members is screwed to the frame, and each of the limiting holes on the brake blocks is not screwed to the corresponding coupling member.

In an embodiment of the present invention, when each of the coupling members penetrates the corresponding limit hole, the proportion of the coupling member occupying the limit hole in the axial direction is at most 97%.

In an embodiment of the present invention, the brake pads extend in an arc shape, and the corresponding center angles are the same relative to the lower shaft.

In order to achieve the above and other objectives, the present invention further provides an assembly kit for power generation and braking devices, which includes: a wheel body, a braking unit, and a gap control jig. The wheel system includes a convex ring structure that extends axially and is concentric with a shaft. The brake unit includes a brake body, a plurality of second tooth portions that are ringed on the outer peripheral surface of the brake body and protrude radially outward, and a plurality of brake coils wound around the second tooth portions, the brake body has A plurality of brake pads can be assembled in a ring shape around a frame and a plurality of coupling parts. The gap control jig includes a plurality of extension pieces extending axially and inserted between the convex ring structure of the wheel body and the brake unit, and the extension pieces are used when the brake coils are energized by The generated magnetic force enables each of the brake pads that are not locked by the coupling members to self-adjust the distance from the convex ring structure to provide a limiting effect, and after the braking unit is locked by the coupling members, and After the energization state of the brake coils is interrupted and the gap control jig is removed, the electromagnetic air gap between the wheel body and the brake unit reaches a target value.

In an embodiment of the present invention, the target value of the electromagnetic air gap is defined by the thickness of each extension piece of the gap control jig.

According to this, the brake system in the brake unit is composed of brake pads divided into plural blocks, so that the brake unit has the characteristics that the electromagnetic air gap can be adjusted and controlled, so that it is not necessary to improve the processing accuracy and processing of the brake unit. Under the premise of cost, the electromagnetic air gap between the brake unit and the wheel body can also be set at a high-precision level, thereby achieving the effect of improving the resistance accuracy.

In order to fully understand the purpose, features and effects of the present invention, the following specific embodiments are used in conjunction with the accompanying drawings to give a detailed description of the present invention. The description is as follows:

Please refer to FIGS. 2 and 4, which are schematic diagrams of the power generation and braking device 100 of the first embodiment and the power generation and braking device 200 of the second embodiment. The power generation and braking device 100 includes a shaft 10 , A wheel body 20, a stator unit 30, a rectifier unit 40, a control panel 50, a waveform generation unit 60, a DC power supply adjustment unit 70 and a braking unit 80. Here, the power generation and braking device 100 is installed in a foot-operated fitness equipment 1000 as shown in FIG. 3 as an example, but it should be understood that the power generation and braking device 100 can also be installed in other structures.

As shown in FIG. 2 and FIG. 3, the shaft 10 is axially arranged on a base 1001 of the foot fitness equipment 1000.

The movable shaft of the wheel body 20 is arranged on the shaft 10, and the wheel body 20 has an outer ring portion 21, a plurality of permanent magnets 22, and an inner ring portion 23. The outer ring portion 21 is arranged around the edge of the wheel body 20 The permanent magnets 22 are arranged at intervals on the side of the outer ring portion 21 facing the axis of the wheel body 20. The inner ring portion 23 and the outer ring portion 21 are concentrically arranged on the wheel body 20 and interposed between Between the ring 21 and the axis of the wheel body 20.

As shown in FIG. 2, the stator unit 30 is fixed to the shaft 10 with the axis of the wheel body 20 as the center, and the stator unit 30 has a stator body 31, a plurality of first teeth 32 and a plurality of power generating coils 33 , The stator body 31 is interposed between the outer ring portion 21 and the inner ring portion 23 of the wheel body 20, the first tooth portions 32 are arranged around the edge of the stator body 31, and the first tooth portions 32 Corresponding to the permanent magnets 22, the generating coils 33 are wound around the first tooth portions 32; wherein, when the wheel body 20 rotates, the permanent magnets 22 rotate relative to the stator unit 30 to generate an alternating current.

The rectifying unit 40 is electrically connected to the stator unit 30 to convert the alternating current into a direct current; the control panel 50 is electrically connected to the rectifying unit 40 for a user to perform related control of the foot fitness equipment 1000; the waveform The generating unit 60 is electrically connected to the control panel 50 and generates an inverted torque input signal; the DC power supply adjusting unit 70 is electrically connected to the waveform generating unit 60, the rectifying unit 40, the waveform generating unit 60, and the DC power supply adjusting The unit 70 can be integrated into a controller module.

As shown in FIG. 2, the braking unit 80 is fixed to the stator body 31 centered on the axis of the wheel body 20, and the braking unit 80 is electrically connected to the DC power adjustment unit 70 to receive the DC power and the reverse phase. Torque input signal, and the brake unit 80 has a brake body 81, a plurality of second teeth 82 and a plurality of brake coils 83, the brake body 81 is interposed between the inner ring portion 23 of the wheel body 20 and the shaft of the wheel body 20 In the center, the second tooth portions 82 are arranged around the edge of the brake body 81, and the second tooth portions 82 correspond to the inner ring portion 23 of the wheel body 20, and the brake coils 83 are respectively wound around the The second tooth 82; wherein, when the braking unit 80 receives the direct current and the reverse torque input signal, it generates reverse torque (ie, tangential force) and electromagnetic attraction (ie, radial force) to brake For the wheel body 20, it should be understood that the reverse torsion force is the force that mainly brakes the wheel body 20, and the electromagnetic attraction force is the force that assists in braking the wheel body 20. In addition, although not shown in the figure, the brake unit 80 can also be directly fixed to the shaft 10.

The user steps on a foot unit 1002 (such as a pedal) of the fitness equipment 1000, and drives the wheel body 20 to rotate by a driving member 1003 (such as a belt), and the stator unit 30 and the brake unit 80 are fixed Do not move.

When the wheel body 20 is driven to rotate by the driving member 1003, the permanent magnets 22 of the wheel body 20 will react with the first teeth 32 and the generating coils 33 of the stator unit 30, thereby generating The alternating current; the alternating current is transmitted to the rectifying unit 40 through a wire; the rectifying unit 40 converts the alternating current into the direct current; the direct current is transmitted to the control panel 50 through a wire to supply power to the control panel 50 so as to be used The direct current and the control signal after passing through the control panel 50 are transmitted to the waveform generating unit 60 through a wire to generate an inverted torque input signal; through the waveform generating unit 60 The subsequent direct current and the reverse torque input signal are transmitted to the direct current power adjustment unit 70 via a wire, and then transmitted to the braking unit 80, so that the braking unit 80 generates reverse torque and electromagnetic attraction.

As shown in Figure 4, it is a schematic diagram of another embodiment of the power generation and braking device. The components of the power generation and braking device 200 in FIG. 4 are the same as the components of the power generation and braking device 100. The difference lies in the arrangement relationship of the wheel body 20, the stator unit 30 and the braking unit 80.

Wherein, the plurality of permanent magnets 22 of the wheel body 20 are arranged at intervals on the side of the inner ring portion 23 facing the axis of the wheel body 21; the stator body 31 of the stator unit 30 is interposed between the inner ring portion of the wheel body 20 23 and the axis of the wheel body 20; and the brake body 81 of the brake unit 80 is interposed between the outer ring portion 21 and the inner ring portion 23 of the wheel body 20, the second The tooth portion 82 corresponds to the outer ring portion 21 of the wheel body 20. In this way, the power generation and braking device 200 can also produce the same effect as the power generation and braking device 100.

Please refer to FIGS. 5 and 6. FIG. 5 is an exploded schematic diagram of the power generation and braking device of the first embodiment of the present invention, and FIG. 6 is a schematic structural diagram of the braking unit shown in FIG.

In the power generation and braking device 300 of this embodiment, the braking unit 380 includes a braking body 381, a plurality of second tooth portions 382, and a plurality of braking coils 383. As shown in FIG. 8, the braking unit 380 is used to rotatably set A wheel body 320 on a shaft 310 generates a braking effect, wherein the wheel body 320 includes a convex ring structure extending axially and concentric with the shaft 310, for example, the convex ring structure is formed by the wheel body 320 The outer ring portion 321 protruding axially from the chassis 324 and located at the edge of the chassis 324. In addition, the convex ring structure corresponding to the brake coils 383 referred to here may be the outer ring portion 321 described above, or may be axially extended and projected from the chassis 324 of the wheel body 320. The outer ring portion 321 is closer to the shaft 310 and is concentric with the inner ring portion 323 of the shaft 310.

As shown in FIG. 5, the second tooth portions 382 are arranged around the outer circumferential surface of the brake body 381 and protrude radially outward, and the brake coils 383 are wound around the second tooth portions 382 respectively. When the brake coils 383 receive the input of direct current, the brake coils 383 generate magnetic fields due to the magnetic effect of the current. When the wheel body 320 rotates relative to the shaft 310, the magnetic field generated by the brake unit 380 causes the wheel body to rotate. The induced electromotive force is generated on 320, and then eddy current is generated. When the wheel body 320 continues to rotate due to the driving of external force, the eddy current on the wheel body 320 will cause a reverse force (force in the tangential direction) in the magnetic field. The wheel body 320 is decelerated to produce a braking effect. At the same time, the energization of the brake coil 383 causes the brake unit 380 to generate electromagnetic hysteresis. The electromagnetic hysteresis system can also decelerate the rotating wheel 320, thereby assisting in providing resistance for braking the rotation of the wheel 320.

The brake body 381 is surrounded by a plurality of brake blocks 3811 and formed into a ring shape. Taking Figure 9 as an example, the number of the brake blocks 3811 can be (but not limited to) 4, which form a circular ring shape after being assembled side by side . Since the brake body 381 in this embodiment is a structure composed of a plurality of brake blocks, the fixed position of each brake block 3811 can be changed by assembling and fixing, so that each brake block 3811 The position relative to the shaft 310 is adjustable, so that the electromagnetic air gap formed between the brake unit 380 and the convex ring structure can be adjusted.

As shown in FIG. 6, the braking unit 380 includes a plurality of coupling members 385 and a frame (the frame in this embodiment has a frame 384A and a frame 384B), and the frames 384A, 384B each have a plurality of coupling holes 3841, the brake blocks 3811 have a plurality of limit holes 3812 corresponding to the coupling holes 3841, and the limit holes 3812 can define the corresponding displacement degree of each brake block 3811 relative to the shaft 310 , Each of the coupling members 3841 is coupled to the corresponding coupling hole 3841 through the corresponding limiting hole 3812, and each of the coupling members 3841 is coupled to the corresponding coupling hole 3841 through the corresponding limiting hole 3812 to fix the adjustment The position of each brake block 3811 afterwards.

For example, the coupling member 385 can be a screw, and the brake block 3811 can be locked in the coupling hole 3841 by the coupling member 385, and is restricted at a specific position on the frame body 384A, 384B. In addition, the aperture of each of the limiting holes 3812 of the brake pads 3811 is preferably slightly larger than the aperture of each of the coupling holes 3841 and the outer diameter of each of the coupling members 385, so that each of the brake pads 3811 relative to the The position of the shaft 310 allows the electromagnetic air gap formed between the braking unit 380 and the convex ring structure to be adjusted. For another example, each of the coupling members 385 is screwed to the frame (such as the frame bodies 384A and 384B), and each of the limiting holes 3812 on the brake blocks 3811 is not screwed to the corresponding coupling member 385.

The outer diameter of each coupling member 385 is a, the expected electromagnetic air gap is b, and the aperture of the limiting hole 3812 is a+b*2, respectively. As an example, the coupling member 385 is, for example, an M5 screw, and the outer diameter of the bolt is 5mm. If the electromagnetic air gap adjustment range is expected to be +/-0.1mm, only the aperture of the limit hole 3812 needs to be penetrated ( Production) is 5.2mm, and the expected electromagnetic air gap adjustment range is +/-0.1mm. For example, preferably, when each of the coupling members 385 is inserted into the corresponding limit hole 3812, the proportion of the coupling member 385 occupying the opening space of the limit hole 3812 in the axial direction does not exceed 97% at most (Refer to Figure 8(b) at the same time).

In this embodiment, the stator unit 330 in this embodiment is arranged on the inner ring opposite to the braking unit 380. As shown in FIG. 5, the brake body 381 of the brake unit 380 is arranged between the outer ring portion 321 and the inner ring portion 323, and the stator body 331 of the stator unit 330 is arranged between the inner ring portion 323 and the inner ring portion 323. Between the shafts 310, the stator body 331 faces the permanent magnets 322 on the inner surface of the inner ring portion 323 facing inward. However, it is not limited to this. The structural design of the brake body 381 with a plurality of brake blocks 3811 can also be applied to the embodiment where the brake unit 380 is arranged on the inner ring of the stator unit 330 as shown in FIG. 1. As mentioned above, the convex ring structure corresponding to the brake coils 383 can be the outer ring portion 321 or the inner ring portion 323, alternatively.

In this embodiment, the frame body 384A and the frame body 384B are arranged on opposite sides of the brake body 381 to provide a limit and fixation function for the brake blocks 3811 of the brake body 381. However, the structural form of the coupling member 385 and the frame bodies 384A and 384B is not limited to the example shown in this embodiment and FIG. 6.

As another implementation aspect, as shown in FIG. 7, the coupling member 385 may be a screw with a screw head, and the coupling member 385 is coupled to the frame 384 in a direction opposite to the screw locking direction shown in FIG. The brake blocks 3811 are clamped and fixed by the screw head of the screw and the frame 384, so that the brake blocks 3811 are assembled to form the ring-shaped brake body 381.

In the structure of the device 300 for power generation and braking of this embodiment (refer to FIG. 5), the bottom surface 324 of the wheel body 320 has a plurality of through holes 3241, and one end of the coupling members 385 is formed in the through holes 3241 After being assembled, the brake blocks 3811 shown in FIG. 7 can be used to lock the coupling members 385 through the through holes 3241.

Please refer to Figure 8 (a) to Figure 8 (c), as an example of the electromagnetic air gap adjustable range, Figure 8 (a) is a schematic diagram showing the coupling member 385 located at the bottom of the limit hole 3812, so that the brake The electromagnetic air gap between the unit 380 and the inner wall of the convex ring structure (outer ring portion 321) is at a minimum; FIG. 8(b) is a schematic diagram showing the coupling member 385 at the center point of the limiting hole 3812, so that The electromagnetic air gap between the braking unit 380 and the inner wall of the convex ring structure (outer ring portion 321) is an intermediate value. FIG. 8(c) is a schematic diagram showing that the coupling member 385 is located at the top of the limiting hole 3812. The electromagnetic air gap between the braking unit 380 and the inner wall of the convex ring structure (outer ring portion 321) is maximized. Through the clamping of the coupling members 385 and the frame bodies 384A, 384B, the electromagnetic gap between the brake unit 380 and the convex ring structure after the assembly can achieve the required resistance accuracy.

Please refer to Figures 9 and 10. Figure 9 is a partial exploded view of the gap control fixture and the power generation and braking device in the assembly method of this embodiment, and Figure 10 is the gap control fixture in the assembly method of this embodiment And the schematic diagram of the power generation and braking device. An assembling method is described below, by which the braking unit 380 of this embodiment is assembled and installed on the power generation and braking device, which can achieve high-precision control of the electromagnetic air gap, thereby improving the resistance accuracy of the mechanism.

The aforementioned assembly method includes: (1) A shaft 310, a wheel body 320 and a brake unit 380 are provided. The brake unit 380 includes a brake body 381, a plurality of second teeth 382 and a plurality of brake coils 383. The brake body 381 includes a plurality of brake pads 3811 ( Please refer to FIG. 6), the second tooth portions 382 are arranged around the outer peripheral surface of the brake body 381 and protrude radially outward. The brake coils 383 are respectively wound around the second tooth portions 382, and the wheel The body 320 includes a convex ring structure that extends axially and is concentric with the shaft 310 (the outer ring portion 321 is taken as an example in the figure); (2) Insert a gap control jig 7 between the wheel body 320 and the brake unit 380. The gap control jig 7 includes an axial extension and is inserted into the brake body 381 and the convex ring structure (outer The plurality of extension pieces 71 between the ring portions 321); (3) The brake coils 383 of the brake unit 380 are energized to generate magnetic force, and the wheel body 320, the brake unit 380 and the gap control jig 7 are temporarily combined together by magnetic force; (4) The plurality of coupling members 385 combined in the wheel body 320 and the brake unit 380 are locked so that the brake blocks 3811 are assembled around and formed in a ring shape, and are located between the wheel body 320 and the brake unit 380 An electromagnetic air gap is formed between; (5) Stop the power supply to the brake coils 383 of the brake unit 380; and (6) Remove the gap control jig 7.

Accordingly, in the assembly method of this embodiment, the extension pieces 71 of the gap control jig 7 are inserted between the brake body 381 and the convex ring structure (outer ring portion 321), and act as the brake unit The brake coils 383 of the 380 are energized to generate magnetic force, and the generated magnetic force allows each brake block 3811 not locked by the coupling members 385 to self-adjust the distance from the convex ring structure (outer ring portion 321) , The extension pieces 71 are provided with a limiting effect at this time. After the brake unit 380 is locked by the coupling members 385, the energization state of the brake coils 383 is interrupted, and the gap control jig 7 is removed, so that the brake blocks 3811 are assembled around to complete the ring-shaped The body 381 is braked, and the electromagnetic air gap between the wheel body 320 and the brake unit 380 is determined to achieve the desired target value.

In this embodiment, the positions of the extension pieces 71 correspond to the positions of the limiting holes on the brake body.

Therefore, the thickness of the extension pieces 71 of the gap control jig 7 is approximately equal to the distance of the electromagnetic air gap, and the processing accuracy of the extension pieces 71 of the gap control jig 7 is related to the electromagnetic air gap. Precision control of the gap. That is, the target value of the electromagnetic air gap can be defined by the thickness of each extension piece 71 of the gap control jig 7.

As shown in FIG. 11, FIG. 11 is a schematic diagram of the structure of the gap control jig in this embodiment. The gap control jig 7 includes a ring-shaped bracket 72 and the extension pieces 71 axially extending from one surface of the ring-shaped bracket 72. Based on the structure of the gap control jig 7 is relatively simpler than that of the brake unit 380 Therefore, as long as the processing precision of the extension pieces 71 of the gap control jig 7 is high enough, under the assembly method of this embodiment and the structural design of the brake unit, the purpose of a high-precision electromagnetic air gap can be achieved. In turn, the resistance accuracy of the mechanism is improved.

In the drawings corresponding to the above embodiment, the brake body 381 includes 4 brake pads 3811 as an example, but it is not limited to this. The brake body 381 can be assembled by at least 2 brake pads 3811 as required. to make. Please refer to FIG. 12 and FIG. 13. FIG. 12 is a schematic structural diagram of the brake body 381 including two brake pads 3811, and FIG. 13 is a schematic structural diagram of the brake body 381 including three brake pads 3811. In terms of the accuracy of the electromagnetic air gap, the more the number of the brake blocks 3811 that make up the brake body 381, the higher the accuracy of the electromagnetic air gap, but it will increase the complexity of the assembly operation. Preferably, each The number of the second teeth 382 on a brake block 381 is at least two, so as to avoid the problem that the judgment of the winding direction of the brake coil 383 is too complicated and easy to be wrong.

The brake blocks 3811 can extend in an arc shape and the corresponding central angles are the same. For example, the brake blocks 3811 are equally divided into 360-degree central angles, so that the brake blocks 3811 are assembled to form a ring shape. The brake body 381.

Accordingly, the brake unit of the above embodiment, the power generation and brake device with the brake unit and the assembly method thereof, do not need to improve the processing accuracy and processing cost, and the electromagnetic air gap between the brake unit and the wheel body can be set at High-precision level, and then achieve the effect of improving resistance accuracy.

The present invention has been disclosed in a preferred embodiment above, but those skilled in the art should understand that the embodiment is only used to describe the present invention and should not be construed as limiting the scope of the present invention. It should be noted that all changes and substitutions equivalent to this embodiment should be included in the scope of the present invention. Therefore, the protection scope of the present invention should be defined by the scope of the patent application.

1: Power generation device

2: wheel body

3: Power generation unit

4: rectifier

5: Control Panel

6: High power resistance

10: Shaft

20: Wheel center

21: Outer Ring

22: permanent magnet

23: inner ring

30: stator unit

31: Stator body

32: The first tooth

33: Generating coil

40: rectifier unit

50: Control Panel

60: Waveform generation unit

70: DC power adjustment unit

80: brake unit

81: Brake body

82: second tooth

83: Brake coil

100: Device for power generation and braking

200: Device for power generation and braking

300: Device for power generation and braking

310: Axle

320: Wheel Center

321: Outer Ring

322: permanent magnet

323: Inner Ring

324: Chassis

3241: Through hole

330: stator unit

331: stator body

380: Brake unit

381: Brake body

3811: brake pad

3812: limit hole

382: second tooth

383: Brake coil

384: Frame

384A: Frame

384B: frame

3841: Combination hole

385: combination

7: Gap control fixture

71: Extension piece

72: Ring bracket

1000: Step on fitness equipment

1001: Pedestal

1002: Foot unit

1003: driving part

[Figure 1] is a schematic diagram of a conventional power generation device. [Figure 2] is a schematic diagram of an embodiment of the power generation and braking device. [Figure 3] is a schematic diagram of the power generation and braking device installed on a foot-step fitness equipment. [Figure 4] is a schematic diagram of another embodiment of the power generation and braking device. [Figure 5] is an exploded schematic diagram of the power generation and braking device of the first embodiment of the present invention. [Fig. 6] is a schematic diagram of the structure of the brake unit shown in Fig. 5. [Fig. 7] is an exploded schematic diagram of another implementation aspect of the braking unit of the first embodiment of the present invention. [Figure 8(a)] is a schematic diagram of the electromagnetic air gap between the brake unit and the inner wall of the convex ring structure at the minimum. [Figure 8(b)] is a schematic diagram of an intermediate value of the electromagnetic air gap between the brake unit and the inner wall of the convex ring structure. [Figure 8(c)] is a schematic diagram of the electromagnetic air gap between the brake unit and the inner wall of the convex ring structure at the maximum value. [Fig. 9] is a partial exploded schematic diagram of the gap control jig and the power generation and braking device in the assembly method of this embodiment. [Fig. 10] is a schematic diagram of the gap control jig and the power generation and braking device in the assembly method of this embodiment. [Fig. 11] is a schematic diagram of the structure of the gap control jig in this embodiment. [Figure 12] is a schematic diagram of the structure of the brake body including two brake pads. [Figure 13] is a schematic diagram of the brake body including 3 brake pads.

300: Device for power generation and braking

310: Axle

320: Wheel Center

321: Outer Ring

322: permanent magnet

323: Inner Ring

324: Chassis

3241: Through hole

330: stator unit

331: stator body

380: Brake unit

381: Brake body

382: second tooth

383: Brake coil

384B: frame

385: combination

Claims (16)

A device for power generation and braking, comprising: a wheel body rotatably arranged on a shaft, the wheel body comprising: an outer ring part ringed around the edge of the wheel body, concentrically with the outer ring part An inner ring portion arranged and interposed between the outer ring portion and the shaft, and a plurality of permanent magnets arranged on the inner surface of one of the outer ring portion and the inner ring portion; a fixed subunit is It includes: a stator body, a plurality of first tooth portions ringed on the outer peripheral surface of the stator body and protruding radially outward, and a plurality of power generating coils wound around the first tooth portions, and the first tooth portions Are arranged opposite to the permanent magnets; and a brake unit, fixed to the stator unit, includes: a brake body arranged concentrically with respect to the stator body, ringed on the outer peripheral surface of the brake body and radially A plurality of second teeth protruding outward, and a plurality of brake coils wound around the second teeth for receiving electrical input to generate braking or magnetic attraction, wherein the brake system is formed by a plurality of brake pads surrounding the assembly A ring shape, in which the second tooth portions protruding radially outwards are directed toward the outer ring portion or the inner ring portion where the permanent magnets are not provided. The device according to claim 1, wherein the brake pads of the brake body are assembled by a plurality of coupling members and a frame fixed to the stator unit, the frame has a plurality of coupling holes, and the brake pads It has a plurality of limit holes corresponding to the coupling holes, and the limit holes define the corresponding displacement degree of each brake block relative to the shaft, and each of the coupling parts is combined through the corresponding limit hole To the corresponding coupling hole to fix the position of each brake block after adjustment. The device according to claim 2, wherein the brake pads extend in an arc shape, and the corresponding center angles are the same relative to the shaft. The device according to claim 3, wherein the number of the second teeth on each brake pad is at least two. The device according to claim 4, wherein the braking system of the braking unit is arranged between the outer ring portion and the inner ring portion, and the stator system of the stator unit is arranged between the inner ring portion and the shaft In between, the main stator system faces the permanent magnets arranged on the inner surface of the inner ring portion. The device according to claim 5, wherein the bottom surface of the wheel body has a plurality of through holes, and one end of the connecting members is exposed from the through holes. The device according to claim 4, wherein the braking system of the braking unit is arranged between the inner ring portion and the shaft, and the stator system of the stator unit is arranged on the outer ring portion and the inner ring portion In between, the stator main system faces the permanent magnets arranged on the inner surface of the outer ring portion. The device according to claim 7, wherein the bottom surface of the wheel body has a plurality of through holes, and one end of the connecting members is exposed from the through holes. A braking unit is used to generate a braking effect on a wheel body rotatably arranged on a shaft. The wheel body includes a convex ring structure extending axially and concentric with the shaft. The braking unit includes: a braking body, A plurality of brake blocks are assembled around and formed into a ring shape; a plurality of second tooth portions are arranged on the outer peripheral surface of the brake body and protrude radially outward and face the convex ring structure without magnets; and plural brakes The coils are respectively wound around the second teeth and are used to receive electrical input to generate braking or magnetic attraction. The braking unit according to claim 9, wherein the braking unit includes a frame and a plurality of coupling members, and the frame has a plurality of coupling holes for the corresponding coupling members to pass through Set fixed, the brake pads have a plurality of limit holes corresponding to the coupling holes. By fixing the axial position of the coupling parts and each of the limit holes having a larger diameter than each coupling hole, the limit holes are defined The displacement degree of each brake block relative to the shaft. The brake unit according to claim 10, wherein each of the coupling members is screwed to the frame, and each of the limiting holes on the brake blocks is not screwed to the corresponding coupling member. The braking unit according to claim 11, wherein when each of the coupling members penetrates the corresponding limit hole, the proportion of the coupling member occupying the limit hole in the axial direction is at most 97%. The brake unit according to claim 9, wherein the brake pads extend in an arc shape, and the corresponding center angles are the same relative to the shaft. The brake unit according to claim 9, wherein the number of the second teeth on each brake shoe is at least two. An assembly kit for a power generation and braking device, comprising: a wheel body including a convex ring structure extending axially and concentric with a shaft; a braking unit including a braking body and ringing on the outer circumference of the braking body A plurality of second teeth protruding radially outward and a plurality of brake coils wound around the second teeth. The brake body has a plurality of frames that can be assembled into a ring shape around the second teeth. Brake block; and a gap control jig, which includes a plurality of extension pieces extending axially and inserted between the convex ring structure of the wheel body and the brake unit, and the extension pieces are used in the brake coils When energized and generated by the magnetic force, each of the brake blocks that are not locked by the coupling members can self-adjust the distance from the convex ring structure to provide a limiting effect, After locking the brake unit by the coupling parts, interrupting the energization of the brake coils and removing the gap control fixture, the electromagnetic air gap between the wheel body and the brake unit reaches the target value . The assembly kit according to claim 15, wherein the target value of the electromagnetic air gap is defined by the thickness of each extension piece of the gap control jig.

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