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KR-102964108-B1 - Direct drive motor-based fitness device

KR102964108B1KR 102964108 B1KR102964108 B1KR 102964108B1KR-102964108-B1

Abstract

A direct drive motor-based fitness device comprises a housing (1), a drive motor (2) mounted on the housing (1), a fitness pull rope (3) connected to the drive motor (2), and a control system (4) connected to the drive motor (2). The control system (4) comprises a main controller (41), a power module (42), a communication module (43), a drive circuit (44), and a sampling module (45). The power module (42) is electrically connected to the main controller (41) and the communication module (43), the communication module (43) is electrically connected to the main controller (41), the sampling module (45) is electrically connected to the drive motor (2) and the main controller (41), and the drive circuit (44) is electrically connected to the power module (42), the main controller (41), and the drive motor (2).

Inventors

  • 장 디
  • 위 야난
  • 루 왕
  • 중 즈밍

Assignees

  • 둥관 다이렉트 드라이브 테크놀로지 리미티드

Dates

Publication Date
20260513
Application Date
20220309
Priority Date
20210705

Claims (10)

  1. As a direct drive motor-based fitness device, The apparatus comprises a housing, a drive motor mounted in the housing, a fitness pull rope connected to the drive motor, and a control system connected to the drive motor, wherein the control system comprises a main controller, a power module, a communication module, a drive circuit, and a sampling module, wherein the power module is electrically connected to the main controller and the communication module, the communication module is electrically connected to the main controller, the sampling module is electrically connected to the drive motor and the main controller, and the drive circuit is electrically connected to the power module, the main controller, and the drive motor. The above-described drive motor comprises a base, a stator assembly installed on the outer edge of the base, a rotating shaft assembly installed within the base, a rotor assembly connected to the rotating shaft assembly and mounted on the stator assembly, and a motor control board installed on the base, wherein the motor control board is connected to a drive circuit, and The base comprises an inner end, an outer end, and a rotatable seating cavity penetrating the inner end and the outer end, and the rotating shaft assembly is rotatably mounted in the rotatable seating cavity, a seating portion is installed in the inner end, an inner groove is formed in the outer end, a convex ring is formed on the outer edge of the seating portion, a mounting hole is formed in the convex ring, a plurality of avoidance positions are formed in the seating portion, a perforation is formed in the outer end, the perforation is connected to the avoidance positions, and the perforation is located on one side of the inner groove. The rotor assembly comprises an outer end cover connected to a rotating shaft assembly, a connecting ring connected to the outer end cover and corresponding to the outer edge of a stator assembly, and a rotor element mounted on the connecting ring and corresponding to the stator assembly, wherein an inner end cover is connected to one side of the connecting ring far from the outer end cover, and the inner end cover is rotatably connected to the outer diameter of the outer end. A direct drive motor-based fitness device characterized by the control system receiving a corresponding traction force command input through the communication module, the main controller obtaining the command and outputting a corresponding program to the drive circuit through a control algorithm, the drive circuit controlling the inflow or outflow of the three-phase current of the drive motor and then performing current sampling on the drive motor through the sampling module to continuously compare with the input command and adjust so that the output traction force of the drive motor reaches the input command value, and adjusting to an arbitrary traction force through the above-described operation.
  2. In paragraph 1, A direct drive motor-based fitness device characterized by having an operating panel installed in the housing and the operating panel being electrically connected to a communication module.
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  5. In paragraph 1, A direct drive motor-based fitness device characterized in that the stator assembly comprises a core and a coil uniformly distributed on the core, a plurality of solar ribs uniformly distributed in the circumferential direction of the core, the coil is wound on the solar ribs, and a plurality of fastening grooves are formed on the outer diameter of the inner end corresponding to the inner diameter of the core.
  6. In paragraph 5, The above-described rotating shaft assembly comprises a bearing member mounted in a rotating seating cavity and a rotating shaft rotatably mounted in the bearing member, wherein one end of the rotating shaft is connected to a rotor assembly and the other end is mounted with a fixed element; wherein a first limiting groove and a second limiting groove are formed in the rotating seating cavity, and two bearings are provided in the bearing member, and the two bearings are each mounted in the first limiting groove and the second limiting groove, characterized in that they are direct drive motor-based fitness devices.
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  8. In paragraph 6, A direct drive motor-based fitness device characterized by the fact that a reinforcing member is installed on the outer end cover, a connecting hole is formed in the reinforcing member, a limiting member is installed in the connecting hole, and the outer end cover is connected to a rotating shaft assembly through the connecting hole; and a connecting bearing is connected to the inner end cover, and the connecting bearing is installed over the outer diameter of the outer end.
  9. In paragraph 8, A direct drive motor-based fitness device characterized by having a pull rope reel fixedly connected to the outer end cover, the fitness pull rope being wound onto the pull rope reel, the fitness pull rope extending to the outside of the housing, and a gripping pull ring connected to the fitness pull rope.
  10. In paragraph 2, A direct drive motor-based fitness device characterized in that the main controller is an MCU processor, the communication module is a communication interface, the communication interface is connected to an operation panel, and the sampling module is a current sampling module that performs current sampling for a drive motor.

Description

Direct drive motor-based fitness device Cross-reference of related applications This application claims priority to a Chinese patent application filed with the Chinese Intellectual Property Office on July 5, 2021, with application number 202110759098.9 and title of the invention “Direct Drive Motor-Based Fitness Device,” all of which are incorporated herein by reference. The present invention relates to the field of intelligent fitness technology, and specifically to a direct drive motor-based fitness device. As people's living standards improve, cleaning robots are gradually integrating into public and domestic life. Currently, the power source for cleaning robots is a brush motor; a reduction gearbox is used as a power transmission device between the brush motor and independently installed wheels to reduce speed and increase force, thereby providing the power necessary for the robot's movement. As the times advance and society progresses, interest in physical health is rising, leading to the increasing popularity of fitness devices. Fitness can improve mood, combat chronic diseases, manage weight, strengthen heart and lung function, and improve sleep. To better explain and illustrate the embodiments and/or examples of the invention disclosed herein, reference may be made to one or more of the accompanying drawings. Additional details or examples used to describe the drawings should not be construed as limiting the scope of the disclosed invention, the embodiments and/or examples currently described, and the best mode of the invention currently understood. Figure 1 is a three-dimensional structural diagram of the fitness device of the present invention. Figure 2 is an exploded cross-sectional view of the fitness device of Figure 1. Figure 3 is a structural diagram of the drive motor of Figure 2 and a fitness pull rope. FIG. 4 is a front view of the driving motor of the present invention. Figure 5 is a cross-sectional view of AA of Figure 4. Figure 6 is a perspective view of the base of the drive motor of Figure 5. FIG. 7 is an exploded view of the driving motor of the present invention. Figure 8 is a schematic diagram of the connection of the control system of the present invention. Figure 9 is a circuit diagram of the main controller of the control system of Figure 8. Figure 10 is a circuit diagram of the driving circuit of the control system of Figure 8. Figure 11 is a circuit diagram of the communication module of the control system of Figure 8. To facilitate understanding of the present invention, the invention will be described more fully below with reference to the relevant drawings. Preferred embodiments of the present invention are illustrated in the drawings. However, the present invention may be embodied in various other forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough understanding of the present disclosure. When one component is said to be "fixed" to another component, it should be noted that it may be located directly above the other component, or there may be an intermediate component. When one element is said to be "connected" to another element, it may be directly connected to the other element, or there may be an intermediate element. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as generally understood by a person skilled in the art to which the present invention pertains. The terms used in the description of the present invention are used merely to describe specific embodiments and are not intended to limit the invention. As illustrated in FIGS. 1 to 11, a direct drive motor-based fitness device comprises a housing (1), a drive motor (2) mounted on the housing (1), a fitness pull rope (3) connected to the drive motor (2), and a control system (4) connected to the drive motor (2). The control system (4) comprises a main controller (41), a power module (42), a communication module (43), a drive circuit (44), and a sampling module (45). The power module (42) is electrically connected to the main controller (41) and the communication module (43), the communication module (43) is electrically connected to the main controller (41), the sampling module (45) is electrically connected to the drive motor (2) and the main controller (41), and the drive circuit (44) is electrically connected to the power module (42), the main controller (41), and the drive motor (2). An operation panel (11) is installed in the housing (1), and the operation panel (11) is electrically connected to a communication module (43). Input commands are transmitted to the communication module (43) through the operation panel (11), making operation simple and convenient to use. This makes it easy to record exercise conditions through the operation panel (11), thus providing high practicality. As illustrated in FIGS. 4 to 7, the drive motor (2) comprises a base (21), a stator assembly (22) installed on the