Direct-drive motor-based fitness equipment

Abstract

The objective is to provide a fitness device based on a direct drive motor. [Solution] A fitness device based on a direct drive motor, comprising: a housing (1), a drive motor (2) attached to 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) comprising a main controller (41), a power supply module (42), a communication module (43), a drive circuit (44), and a sampling module (45), the power supply module (42) being electrically connected to the main controller (41) and the communication module (43), the communication module (43) being electrically connected to the main controller (41), the sampling module (45) being electrically connected to the drive motor (2) and the main controller (41), and the drive circuit (44) being electrically connected to the power supply module (42), the main controller (41), and the drive motor (2).

Description

[Technical Field]

[0001] [CROSS-REFERENCE TO RELATED APPLICATIONS] This application claims priority to Chinese Patent Application No. 202110759098.9, entitled "Fitness Device Based on Direct Drive Motor," filed on July 5, 2021, the entire contents of which are incorporated herein by reference.

[0002] The present invention relates to the field of intelligent fitness, and more particularly to fitness devices based on direct drive motors. [Background technology]

[0003] As people's living standards improve, robot vacuum cleaners are gradually becoming integrated into people's home life. However, nowadays, the power source of robot vacuum cleaners is a brush motor, and a reducer is used as a transmission device between the brush motor and an independent wheel to reduce speed and increase torque, thereby providing power for the robot vacuum cleaner's movement. With the evolution of the times and the progress of society, people are increasingly concerned about their physical health, and fitness equipment is becoming more and more popular. Fitness can improve mood, combat chronic diseases, control weight, strengthen heart and lung function, and promote better sleep. Summary of the Invention [Problem to be solved by the invention]

[0004] Currently, there are many types of fitness equipment on the market with different functions. Among them, tension fitness is relatively simple and effective and has become widespread, but there is still room for improvement in tension fitness devices for health promotion. Traditional tension fitness machines with adjustable tension are very bulky and require a large installation space, while small and lightweight iron bars cannot adjust the tension, making training very inconvenient.

[0005] To solve the above problems, the present invention provides a fitness device based on a direct drive motor, which has a fitness pull rope mounted on a drive motor, uses the drive motor as a pulling force drive, and is combined with a control system to control the pulling force of the drive motor, thereby realizing intelligent fitness. [Means for solving the problem]

[0006] To achieve the above objectives, the following technical solutions are adopted:

[0007] A fitness device based on a direct drive motor, comprising: a housing; a drive motor attached to the housing; a fitness pull rope coupled to the drive motor; and a control system connected to the drive motor, wherein the control system comprises a main controller, a power supply module, a communication module, a drive circuit, and a sampling module, wherein the power supply 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 supply module, the main controller, and the drive motor.

[0008] The details of one or more embodiments of the invention are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of the invention will become apparent from the description, the accompanying drawings, and the claims. [Effects of the Invention]

[0009] Compared with traditional fitness equipment, the present invention is a tension fitness equipment, which is equipped with a fitness pulling rope on a drive motor, and uses the drive motor as a tension drive, and cooperates with a control system to control the tension of the drive motor, thereby realizing intelligent fitness. The control system receives the input corresponding tension command through a communication module, and after the main controller obtains the command, outputs a corresponding program to the drive circuit according to a control algorithm, which controls the three-phase current input or output of the drive motor. The sampling module then samples the drive motor current, continuously compares and adjusts it with the input command, so that the output tension of the drive motor reaches the input command value. Through the above operation, arbitrary tension adjustment can be realized. Specifically, the device includes a housing, a drive motor attached to the housing, a fitness pulling rope connected to the drive motor, and a control system connected to the drive motor, the control system including a main controller, a power supply module, a communication module, a drive circuit, and a sampling module, the power supply 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 supply module, the main controller, and the drive motor. A direct drive motor is used as the driving source of the pulling fitness device, and cooperates with the control system to achieve intelligent control, making it highly practical and intelligent.

[0010] To better illustrate and explain the embodiments and / or examples of the invention disclosed herein, reference may be made to one or more drawings. Any additional details or examples used to illustrate the drawings should not be understood as limitations on the scope of the disclosed inventions, the presently depicted embodiments and / or examples, and the best modes of these inventions as currently understood. [Brief explanation of the drawings]

[0011] [Figure 1]1 is a three-dimensional view showing a schematic configuration of a fitness device according to the present invention; [Figure 2] FIG. 2 is an exploded view of the fitness device of FIG. 1. [Figure 3] FIG. 3 is a schematic diagram of the drive motor and fitness pull rope of FIG. 2. [Figure 4] 1 is a front view showing a schematic configuration of a drive motor according to the present invention; [Figure 5] FIG. 5 is a cross-sectional view taken along line AA in FIG. [Figure 6] FIG. 6 is a schematic three-dimensional view of a base portion of the drive motor of FIG. 5. [Figure 7] 1 is a schematic exploded view of a drive motor according to the present invention; [Figure 8] FIG. 2 is a schematic connection diagram of the control system of the present invention. [Figure 9] FIG. 9 is a circuit diagram of a main controller of the control system of FIG. 8. [Figure 10] FIG. 9 is a circuit diagram of a drive circuit of the control system of FIG. 8. [Figure 11] FIG. 9 is a circuit diagram of a communication module of the control system of FIG. 8. DETAILED DESCRIPTION OF THE INVENTION

[0012] To facilitate understanding of the present invention, the present invention will now be described more comprehensively with reference to the accompanying drawings, in which preferred embodiments of the present invention are shown. However, the present invention may be embodied in many different forms and is not limited to the embodiments depicted herein. Rather, these embodiments are intended to provide a thorough understanding of the present disclosure.

[0013] It should be noted that when an element is referred to as being "anchored" to another element, it may be directly on the other element, or there may be intervening elements. When an element is referred to as being "connected" to another element, it may be directly connected to the other element, or there may be intervening elements.

[0014] Unless defined otherwise, all technical or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting on the present invention.

[0015] As shown in Figures 1 to 11, this fitness device is based on a direct drive motor and includes a housing 1, a drive motor 2 attached to 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, wherein the control system 4 includes a main controller 41, a power supply module 42, a communication module 43, a drive circuit 44, and a sampling module 45, wherein the power supply 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 supply module 42, the main controller 41, and the drive motor 2.

[0016] The housing 1 is provided with an operation panel 11 electrically connected to the communication module 43, and commands can be input to the communication module 43 via the operation panel 11, making it easy to operate, user-friendly, simple in structure, highly reliable, and user-friendly, and exercise status can be recorded through the operation panel 11, making it highly practical.

[0017] As shown in Figures 4 to 7, the drive motor 2 comprises a base 21, a stator assembly 22 provided on the outer edge of the base 21, a rotating shaft assembly 23 provided within the base 21, a rotor assembly 24 connected to the rotating shaft assembly 23 and covering the stator assembly 22, and a motor control board 25 provided on the base 21. The motor control board 25 is connected to a drive circuit 44, and controls motor transmission via the motor control board 25 during the operation of the drive motor 2. The transmission process is achieved by the cooperation of the rotor assembly 24 and the stator assembly 22, and the rotating shaft assembly 23 cooperates with the rotor assembly 24 to transmit power stably within the base 21, resulting in high transmission accuracy.

[0018] The base portion 21 has an inner mounting end 211, an outer mounting end 212, and a rotary mounting cavity 213 that penetrates the inner mounting end 211 and the outer mounting end 212. The rotary shaft assembly 23 is rotatably mounted in the rotary mounting cavity 213. The inner mounting end 211 is provided with a mounting base 211a, the outer mounting end 212 is provided with an inner mounting groove 212a, a convex ring is provided on the outer edge of the mounting base 211a, mounting holes are provided in the convex ring, and a plurality of gaps 211b are provided in the mounting base 211a. The outer mounting end 212 has a through hole formed therein, which is connected to the gap 211b and located on one side of the inner mounting groove 212a. The inner mounting end 211 and the outer mounting end 212 are used to attach the inner structure and connect the outer structure, respectively, and the rotary mounting cavity 213 is used to connect and fix the rotary shaft assembly 23, making installation easy. Each gap 211b and mounting base 211a are installed in accordance with the motor control board 25, resulting in a highly reliable structure.

[0019] The stator assembly 22 comprises an iron core 221 and coils 222 evenly arranged on the iron core 221. A plurality of sun ribs 223 are evenly arranged around the circumferential direction of the iron core 221, and the coils 222 are wound around the sun ribs 223. A plurality of fastening grooves corresponding to the inner diameter of the iron core 221 are drilled in the outer diameter of the inner mounting end 211, and the coils 222 are wound around the sun ribs 223, resulting in a simple structure and high stability.

[0020] The rotating shaft assembly 23 comprises a bearing member 231 mounted in the rotary mounting cavity 213, and a rotating shaft 232 rotatably mounted on the bearing member 231. One end of the rotating shaft 232 is connected to the rotor assembly 24, and the other end is attached to a fixture 233. The rotary mounting cavity 213 is formed with a first limiting groove and a second limiting groove. The bearing member 231 is provided with two bearings, which are mounted in the first limiting groove and the second limiting groove, respectively. A double bearing is used to mount the rotating shaft 232, resulting in a simple and stable structure.

[0021] The rotor assembly 24 comprises an outer end cap 241 connected to the rotating shaft assembly 23, a connecting ring 242 connected to the outer end cap 241 and corresponding to the outer edge of the stator assembly 22, and a rotor member 243 attached to the connecting ring 242 and corresponding to the stator assembly 22. An inner end cap 244 is connected to the connecting ring 242 on the side away from the outer end cap 241, and the inner end cap 244 is rotatably connected to the outer diameter of the outer mounting end 212. The outer end cap 241 cooperates with the connecting ring 242 for structural connection, and the rotor member 243 cooperates with the stator assembly 22 to realize motor power transmission, and the transmission is stable.

[0022] A reinforcing base 241a is provided on the outer end cover 241, a connecting hole is drilled in the reinforcing base 241a, a limiting base is provided in the connecting hole, the outer end cover 241 is connected to the rotating shaft assembly 23 via the connecting hole, a connecting bearing is connected to the inner end cover 244, and a sleeve is attached to the outer diameter of the outer mounting end 212 of the connecting bearing, and the outer end cover 241 is connected to the limiting base via the reinforcing base 241a, thereby providing a simple connection and a stable structure.

[0023] A rope reel 241b is fixed to the outer end cover 241, the fitness pulling rope 3 is wound around the rope reel 241b and extends outside the housing 1, and a handle 31 is connected to the fitness pulling rope 3. The fitness pulling rope 3 can be moved by the outer end cover 241 and the rope reel 241b as the driving connection for the rope reel 241b, making it convenient for fitness enthusiasts to operate and easy to use.

[0024] The main controller 41 is an MCU processor, the communication module 43 is a communication interface, the communication interface is connected to the operation panel 11, and the sampling module 45 is a current sampling module 45 for sampling the current of the driving motor 2. The MCU processor is adopted as the main controller 41, and further cooperates with the communication interface to realize intelligent control, which has good control effect and high intelligence.

[0025] As shown in Figures 8 to 11, the present invention is a pulling fitness device, which is equipped with a fitness pulling rope 3 on a driving motor 2, and uses the driving motor 2 as a pulling force driver, and cooperates with a control system 4 to control the pulling force of the driving motor 2, thereby achieving intelligent fitness. The control system 4 receives the input corresponding pulling force command through a communication module 43, and after the main controller 41 receives the command, it outputs a corresponding program to the driving circuit 44 according to a control algorithm. The driving circuit 44 controls the input or cutoff of the three-phase current of the driving motor 2. Next, the sampling module 45 samples the current of the driving motor 2, and continuously compares and adjusts it with the input command so that the output pulling force of the driving motor 2 reaches the input command value. Through the above operations, arbitrary pulling force adjustment can be achieved. Specifically, the device includes a housing 1, a drive motor 2 attached to the housing 1, a fitness pulling rope 3 connected to the drive motor 2, and a control system 4 connected to the drive motor 2. The control system 4 includes a main controller 41, a power supply module 42, a communication module 43, a drive circuit 44, and a sampling module 45. The power supply 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 supply module 42, the main controller 41, and the drive motor 2. A direct drive motor is used as the driving source of the pulling fitness device, and cooperates with the control system to achieve intelligent control, making it highly practical and intelligent.

[0026] The above-described embodiments represent some embodiments of the present invention, and although the descriptions thereof are relatively specific and detailed, they should not be understood as limitations on the patent scope of the present invention. It should be noted that a person skilled in the art may make some modifications and improvements without departing from the technical idea of the present invention, and such modifications and improvements fall within the scope of protection of the present invention. Therefore, the patent scope of the present invention should be determined based on the scope of the appended claims. [Explanation of symbols]

[0027] 1 chassis 11 Operation panel 2 drive motor 21 Base 211 Inner mounting end 211a Mounting stand 211b Gap 212 External mounting end 213 Rotational Mounting Cavity 22 Stator assembly 221 Iron Core 222 Coil 223 Sun Rib 23 Rotating shaft assembly 231 Bearing materials 232 Rotational Axis 233 Fixtures 24 Rotor assembly 241 Outer end cover 241a Reinforcement stand 241b Rope reel 242 Connected ring 243 Rotor member 244 Inner end cover 25 Motor Control Board 3 Fitness Pull Rope 31 Handle 4. Control System 41 Main Controller 42 Power Supply Module 43 Communication Module 44 Drive circuit 45 Sampling Module

Claims

1. A direct drive motor-based fitness device, comprising: a housing; a drive motor attached to the housing; a fitness pull rope coupled to the drive motor; and a control system connected to the drive motor, the control system comprising a main controller, a power supply module, a communication module, a drive circuit, and a sampling module; the power supply 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 driving motor and the main controller, and samples the current of the driving motor, and continuously compares and adjusts it with an input command, so that the output pulling force of the driving motor reaches the input command value; the driving circuit is electrically connected to the power supply module, the main controller and the driving motor; the drive motor includes a base, a stator assembly provided on an outer edge of the base, a rotating shaft assembly provided within the base, a rotor assembly connected to the rotating shaft assembly and covering the stator assembly, and a motor control board provided on the base, the motor control board being connected to the drive circuit; the base portion has an inner mounting end, an outer mounting end, and a rotary mounting cavity passing through the inner mounting end and the outer mounting end, the rotary shaft assembly is rotatably mounted in the rotary mounting cavity, the inner mounting end is provided with a mounting base, the outer mounting end is provided with an inner mounting groove, a convex ring is provided on the outer edge of the mounting base, the convex ring is provided with mounting holes, the mounting base is provided with a plurality of gaps, and the outer mounting end is provided with insertion holes, the insertion holes are connected to the gaps and are located on one side of the inner mounting groove, the rotor assembly includes an outer end cap connected to the rotating shaft assembly, a connecting ring connected to the outer end cap and corresponding to the outer edge of the stator assembly, and a rotor member attached to the connecting ring and corresponding to the stator assembly, an inner end cap connected to the connecting ring on the side remote from the outer end cap, and the inner end cap rotatably connected to the outer diameter of the outer mounting end, A fitness device based on a direct drive motor, characterized in that a rope reel is fixed to the outer end cover, the fitness pulling rope is wound around the rope reel and extends outside the housing, and a handle is connected to the fitness pulling rope.

2. 2. The direct drive motor-based fitness device of claim 1, wherein the housing is provided with an operation panel connected to the communication module.

3. 3. The direct drive motor-based fitness device of claim 2, wherein the stator assembly comprises an iron core and a coil evenly arranged on the iron core, a plurality of sun ribs are evenly arranged around the circumferential direction of the iron core, the coil is wound around the sun ribs, and a plurality of fastening grooves corresponding to the inner diameter of the iron core are drilled on the outer diameter of the inner mounting end.

4. 4. The direct drive motor-based fitness device of claim 3, wherein the rotating shaft assembly comprises a bearing member mounted in the rotating mounting cavity and a rotating shaft rotatably mounted on the bearing member, one end of the rotating shaft being connected to the rotor assembly and the other end being attached to a fixture, the rotating mounting cavity being formed with a first limiting groove and a second limiting groove, the bearing member being provided with two bearings, and the two bearings being mounted in the first limiting groove and the second limiting groove, respectively.

5. 5. The direct drive motor-based fitness device of claim 4, wherein the outer end cover is provided with a reinforcing block, a connecting hole is drilled in the reinforcing block, a limiting block is provided in the connecting hole, the outer end cover is connected to the rotating shaft assembly through the connecting hole, and a connecting bearing is connected to the inner end cover, and the connecting bearing is fitted into the outer diameter of the outer mounting end.

6. 3. The direct drive motor-based fitness equipment of claim 2, wherein the main controller is an MCU processor, the communication module is a communication interface, the communication interface is connected to a control panel, and the sampling module is a current sampling module for sampling the current of the drive motor.

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