TWI767819B - Eddy Current Resistor - Google Patents

Abstract

The present invention relates to an eddy current resistor, comprising: an annular flywheel with a side wall; an axis, which is coupled to the sidewall of the annular flywheel by a bearing, and the end face of the axis away from the sidewall is formed with an axial Blind hole, the shaft center is formed with radial blind hole inside the annular flywheel, the radial blind hole is connected to the axial blind hole; a fixing frame is combined with the shaft center and located inside the annular flywheel; several magnetic fields The generating elements are evenly arranged on the fixing frame and close to the inner periphery of the annular flywheel, and the signal lines of each magnetic field generating element pass through the radial blind hole of the shaft center and the axial blind hole to the outer end of the shaft center; and a cover on one side, which is combined with the other side of the annular flywheel relative to the side wall portion, and is combined with the shaft center through a bearing. Thereby, it is used to solve the problems of high complexity of the form and process of the side cover in the prior art, and has the effect of simplifying the form and process of the side cover.

Description

Eddy Current Resistor

The present invention relates to an eddy current resistor, in particular to a designer whose axis is formed with a guide hole for a signal line to guide the signal line to the outer end of the axis in advance, thereby simplifying the type and process of the side cover.

As shown in [FIG. 1], many fitness equipments are equipped with a resistance device 10 to adjust the load resistance of the exercise; The inertial force of rotation is provided by the annular flywheel 11, and the load resistance is adjusted by the magnetoresistive member 12, and the magnetoresistive member 12 also has a signal line 13 that must be connected to the outside, but the resistor 10 will be installed in many different types. / size fitness equipment, so in order to match the wiring arrangement of the signal line 13 on the fitness equipment of different types/sizes, the side of the resistance device 10 will be exposed first, until the resistance device 10 is installed on the fitness equipment and After arranging the routing of the signal line 13, cover the side of the resistance device 10 according to the type/size of the fitness equipment, so that the side of the conventional resistance device must be covered with the fitness equipment. The type and process will have a higher complexity.

The main purpose of the present invention is to solve the problem of high complexity of the type and process of the side cover in the prior art, and to have the effect of simplifying the type and process of the side cover.

In order to achieve the above-mentioned effects, the technical features of the present invention include: an annular flywheel having a side wall portion; a shaft center, which is coupled to the side wall portion of the annular flywheel through a bearing, and the end face of the shaft center away from the side wall portion is formed with a an axial blind hole, the shaft center is formed with a radial blind hole inside the annular flywheel, and the radial blind hole is communicated with the axial blind hole; a fixing frame is combined with the shaft center and located inside the annular flywheel; several A magnetic field generating element is evenly arranged on the fixing frame and close to the inner periphery of the annular flywheel, and the signal lines of each magnetic field generating element pass through the radial blind hole of the shaft center and the axial blind hole to the outside of the shaft center and a cover on one side, which is combined with the other side of the annular flywheel relative to the side wall portion, and is combined with the shaft center through a bearing.

In addition, the magnetic field generating component is composed of an iron core and a coil. A rotational speed sensing unit is also arranged inside the annular flywheel; wherein, the rotational speed sensing unit is composed of a rotational speed sticker located on the side wall and a light sensor located on the fixing frame.

First, please refer to [ FIG. 2 ] to [ FIG. 6 ], the present invention includes: an annular flywheel 20 with a side wall portion 21 , a rotational speed sensing unit 22 is also arranged inside the annular flywheel 20 ; an axis 30 , through the bearing 31 is combined with the side wall portion 21 of the annular flywheel 20, an axial blind hole 32 is formed on the end face of the shaft center 30 away from the side wall portion 21, and the shaft center 30 is formed inside the annular flywheel 20 with radial blind holes 32 A hole 33, the radial blind hole 33 communicates with the axial blind hole 32; a fixing frame 40 is combined with the shaft center 30 and located inside the annular flywheel 20, the rotational speed sensing unit 22 is located on the side wall 21. The rotational speed sticker 221 is composed of a photo sensor 222 located on the fixing frame; a plurality of magnetic field generating elements 50 are evenly arranged on the fixing frame 40 and close to the inner periphery of the annular flywheel 20 , and make the signals of the magnetic field generating elements 50 The wire 51 passes through the radial blind hole 33 and the axial blind hole 32 of the shaft center 30 to the outer end of the shaft center 30 , the magnetic field generating assembly 50 is composed of an iron core 52 and a coil 53 ; and a side cover 60 , the side wall portion 21 is coupled to the other side of the annular flywheel 20 , and is coupled to the shaft center 30 through the bearing 61 .

Based on such a configuration, the present invention utilizes the magnetic field generated by the magnetic field generating element 50 to induce eddy currents in the annular flywheel 20 to generate an adjustable load resistance. The signal line 51 of the magnetic field generating element 50 can directly pass through the shaft from the inside of the annular flywheel 20 The radial blind hole 33 and the axial blind hole 32 of the core 30 are guided to the outer end of the shaft core 30, and the other side of the annular flywheel 20 is covered by the side cover 60; however, the shaft core 30 can be supported by bearings 71 is combined with the transmission wheel 70 of the fitness sports equipment, and a one-way bearing 72 and a bearing 73 are also arranged between the transmission wheel 70 and the annular flywheel 20, and as shown in [Fig. 7], the present invention is installed on the fitness sports equipment. use.

Therefore, in the present invention, a guide hole (a radial blind hole and an axial blind hole) for the signal wire is formed in the shaft center, so that the signal wire can be guided from the inside of the ring flywheel to the shaft in advance during the assembly process of the resistor. The outer end of the heart, and the other side of the annular flywheel is covered by a side cover in advance. Fitness equipment of different types/sizes can be installed directly. It solves the problem that the side of the conventional resistance device must be covered with the fitness equipment. problem, and has the effect of simplifying the type and process of the side cover.

To sum up, the technical means disclosed in the present invention do meet the requirements for invention patents such as "novelty", "progressiveness" and "availability for industrial use". Moral sense.

However, the drawings and descriptions disclosed above are only preferred embodiments of the present invention, and modifications or equivalent changes made by those skilled in the art within the scope of the spirit of this case should still be included in the scope of the patent application of this case.

10: Resistor 11: Ring flywheel 12: Magnetoresistive components 13: Signal line 20: Ring flywheel 21: side wall 22: Speed Sensing Unit 221: Speed Sticker 222: Light sensor 30: Axis 31: Bearings 32: Axial blind hole 33: Radial blind hole 40: Fixed frame 50: Magnetic field generating components 51: Signal line 52: Iron core 53: Coil 60: Side cover 61: Bearing 70: Transmission wheel 71: Bearings 72: One-way bearing 73: Bearings

[Fig. 1] It is an explanatory diagram that the side of the conventional resistance device must be covered with the fitness equipment. [Fig. 2] is an exploded view of the structure of the present invention. [FIG. 3A] is an exploded view of a part of the structure of the present invention. [FIG. 3B] is a partial structural combination diagram of the present invention. [FIG. 4] It is a perspective external view of the structure of the present invention. [FIG. 5] is a three-dimensional cross-sectional view of the structure of the present invention. [FIG. 6] is a cross-sectional view of the structure of the present invention. [FIG. 7] It is an explanatory diagram that the present invention can be pre-sealed and then installed on the fitness sports equipment.

20: Ring flywheel

21: side wall

221: Speed Sticker

30: Axis

31: Bearings

32: Axial blind hole

33: Radial blind hole

40: Fixed frame

50: Magnetic field generating components

51: Signal line

52: Iron core

53: Coil

Claims (4)

An eddy current resistor, comprising: an annular flywheel having a side wall; A shaft is connected to the side wall of the annular flywheel through a bearing, an axial blind hole is formed on the end face of the shaft away from the side wall, and a radial blind hole is formed inside the annular flywheel. The blind hole is connected to the axial blind hole; a fixing frame, which is combined with the shaft and located inside the annular flywheel; A plurality of magnetic field generating elements are evenly arranged on the fixing frame and close to the inner periphery of the annular flywheel, and the signal lines of each magnetic field generating element pass through the radial blind hole of the shaft center and the axial blind hole to the shaft center the outer end; and One side cover is combined with the other side of the annular flywheel relative to the side wall portion, and is combined with the shaft center through a bearing. The eddy current resistor according to claim 1, wherein the magnetic field generating element is composed of an iron core and a coil. The eddy current resistor according to claim 2, wherein a rotational speed sensing unit is further arranged inside the annular flywheel. The eddy current resistor according to claim 3, wherein the rotational speed sensing unit is composed of a rotational speed sticker located on the side wall and a light sensor located on the fixing frame.

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