WO2020108505A1 - 一种椭圆机 - Google Patents

一种椭圆机 Download PDF

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Publication number
WO2020108505A1
WO2020108505A1 PCT/CN2019/121118 CN2019121118W WO2020108505A1 WO 2020108505 A1 WO2020108505 A1 WO 2020108505A1 CN 2019121118 W CN2019121118 W CN 2019121118W WO 2020108505 A1 WO2020108505 A1 WO 2020108505A1
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Prior art keywords
permanent magnet
synchronous motor
magnet synchronous
resistance
elliptical machine
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PCT/CN2019/121118
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English (en)
French (fr)
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李荣春
肖乐
张培真
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李荣春
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Publication of WO2020108505A1 publication Critical patent/WO2020108505A1/zh

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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/005—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using electromagnetic or electric force-resisters
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/06—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement

Definitions

  • the utility model relates to the field of fitness equipment, in particular to an elliptical machine.
  • the elliptical machine is a very common cardiopulmonary fitness exercise training tool, which can guide the user's feet to make a circular movement on an approximate elliptical closed trajectory. This way of movement is closer to the footsteps when walking or running, and The impact on the user's joints is also relatively small, so it is also widely loved by users.
  • the resistance generating device of the existing elliptical machine is generally a structure in which the outer circle of the cast iron flywheel is covered with aluminum or copper skin, and then several groups of ferrite magnets are placed in the outer circumferential direction.
  • the flywheel rotates, the aluminum or copper skin cuts the ferrite magnet.
  • Eddy current in the aluminum skin or copper skin the eddy current interacts with the magnetic field to create resistance, and then adjust the resistance by adjusting the distance between the magnet and the flywheel. Since the method of adjusting the resistance is a mechanical method, the magnet is usually pulled by hand or motor, so it has the following defects:
  • High failure rate the cable or rod is used, the cable or rod is easily rusted and cannot be adjusted, and the magnet and the flywheel are easily rubbed and caused to fall off;
  • the utility model aims to provide an elliptical machine.
  • the resistance device of the elliptical machine is realized by a permanent magnet synchronous motor, so as to solve the problem of poor resistance adjustment effect of the existing elliptical machine resistance device.
  • An elliptical machine includes a frame, a rocker mechanism and a pedal mechanism installed on the frame, the pedal mechanism and the rocker mechanism are linked on the frame to form an elliptical motion track, and also include a resistance generation Device, the resistance generating device includes a hub-shaped permanent magnet synchronous motor, a control circuit, and an energy dissipation device, the rotating shaft of the permanent magnet synchronous motor is mounted on the frame through a bearing, and the pulley of the pedal mechanism passes The transmission belt is drivingly connected to the permanent magnet synchronous motor, the permanent magnet synchronous motor is electrically connected to the energy consuming device, the control circuit is electrically connected to the permanent magnet synchronous motor and can control the current passing through the permanent magnet synchronous motor.
  • an inertia wheel which is nested on the permanent magnet synchronous motor.
  • the energy consuming device is a power resistor.
  • an upper computer which is signal-connected to the control circuit to send the resistance control command issued by the upper computer to the control circuit.
  • the upper computer is a controller provided on the rack, and the controller can set resistance.
  • the upper computer is an intelligent terminal, and the intelligent terminal has an application program, and the application program can set resistance.
  • the elliptical machine provided by the utility model has the following advantages: the resistance generating device of the elliptical machine provided by the utility model is realized by controlling the current through the permanent magnet synchronous motor, and the resistance is realized by the magnitude of the current Adjustment is achieved through electronic adjustment. Compared with existing mechanical adjustment methods, it has the advantages of real-time, precise and controllable.
  • Figure 1 shows a schematic perspective view of an elliptical machine.
  • Figure 2 shows a side view of the elliptical machine.
  • the present invention provides an elliptical machine, which includes a frame 1 and a rocker mechanism 2 and a pedal mechanism 3 mounted on the frame.
  • the role of the frame 1 is To provide a stable support for the elliptical machine, the pedal mechanism 3 and the rocker mechanism 2 are linked on the frame 1 to form an elliptical motion track.
  • the elliptical machine further includes a resistance generating device 4 including a hub-shaped permanent magnet synchronous motor 40, a control circuit 42 and an energy dissipation device 44
  • the hub-shaped permanent magnet synchronous motor 40 refers to designing the shell shape of the existing permanent magnet synchronous motor into the shape of a hub, and its internal structure is the same as that of the existing permanent magnet synchronous motor, and also has a stator and a rotor, and the rotating shaft 400 of the permanent magnet synchronous motor 40 passes through a bearing Installed on the frame 1, the pulley 30 of the pedal mechanism 3 is connected to the permanent magnet synchronous motor through the transmission belt 32, that is, when the pulley 30 drives the permanent magnet synchronous motor 40, the rotor of the permanent magnet synchronous motor 40 is The fixed and non-rotating, and the casing of the permanent magnet synchronous motor 40 and the stator inside the casing rotate with the pulley 30.
  • the permanent magnet synchronous motor 40 is electrically connected to the energy dissipation device.
  • the pulley 30 of the pedal mechanism 3 drives the permanent magnet synchronous motor 40 to rotate, so that the stator winding of the permanent magnet synchronous motor 40 It will cut the magnetic field and generate an induced current.
  • the permanent magnet synchronous motor 40 is used as a generator.
  • the current generated during exercise is consumed by the energy dissipation device 44; the control circuit 42 (the control circuit is a prior art and will not be performed here (Detailed description) It is electrically connected to the permanent magnet synchronous motor 40 and can control the current passing through the permanent magnet synchronous motor 40.
  • the permanent magnet synchronous motor 40 When the permanent magnet synchronous motor 40 is energized, it will produce resistance that hinders riding.
  • the magnitude of the current of 40 can change the magnitude of the electromagnetic torque of the permanent magnet synchronous motor 40, that is, the resistance that hinders the rotation of the pulley 30 during exercise can be adjusted, thereby adjusting the load during exercise, and the electromagnetic rotation of the permanent magnet synchronous motor is controlled by the current
  • the moment control method can be implemented by a field-oriented control system (FOC). That is, the permanent magnet synchronous motor 40 as the resistance generating device of the elliptical machine realizes resistance adjustment through the magnitude of the current, that is, through electronic adjustment, so it has the advantages of real-time, precise and controllable.
  • FOC field-oriented control system
  • the resistance generating device 4 further includes an inertia wheel 46 that is nested on the permanent magnet synchronous motor 40, that is, on the outer casing of the permanent magnet synchronous motor 40
  • a flywheel 46 is nested on the body.
  • the energy consuming device 44 is a power resistor, that is, the current generated by the permanent magnet synchronous motor 40 during exercise is dissipated in the form of thermal energy through the power resistor.
  • the host computer can be a controller 50 installed on the rack, the controller 50 can set the resistance, the control circuit can be connected to the controller 50 through a universal wired interface, such as: UART, CAN, 485, etc., to receive The resistance control command of the controller 50; then according to the characteristics of the electromechanical energy conversion of the motor, through FOC control, real-time, accurate and smooth resistance output can be achieved, and accurate power measurement can be achieved.
  • the host computer can also be a smart terminal, such as a smart phone, a tablet computer, etc.
  • the smart terminal can be connected to the control circuit signal through a wireless connection, such as WiFi, Bluetooth, etc., and the smart terminal has a corresponding application program (APP), the application can set resistance, and then send resistance control commands to the control circuit through wireless transmission.
  • the control circuit can realize real-time, accurate and smooth control through FOC according to the characteristics of motor electromechanical energy conversion. Resistance output, and can achieve accurate power measurement.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Cardiology (AREA)
  • Vascular Medicine (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

本实用新型涉及一种椭圆机，包括机架以及安装在机架上的摇杆机构和踏板机构，所述踏板机构与所述摇杆机构在所述机架上联动以形成椭圆运动轨迹，还包括一阻力发生装置，所述阻力发生装置包括了一轮毂形状的永磁同步电机、控制电路以及一耗能装置，该永磁同步电机的转动轴通过轴承安装在机架上，所述踏板机构的带轮通过传动带与永磁同步电机传动连接，所述永磁同步电机与耗能装置电连接，所述控制电路与永磁同步电机电连接并且能够控制通过该永磁同步电机的电流，以解决现有椭圆机的阻力装置阻力调节效果不好的问题。

Description

一种椭圆机 技术领域
本实用新型涉及健身器材领域，具体是涉及一种椭圆机。
背景技术
随着人民的生活水平逐渐提升，大家对自身的健康也越来越重视，而由于受到健身时间和地点的限制，消费者室内的健身器材的需求也越来越多，在诸多的室内健身器材中，椭圆机是相当常见的心肺适能运动训练工具，可导引使用者的双脚在一近似椭圆形的封闭轨迹上作循环运动，如此运动方式较为接近走路或跑步时的脚步动作，并且对使用者关节的冲击也较为小，因此也广为使用者喜爱。
现有椭圆机的阻力发生装置一般在铸铁飞轮外圆包铝皮或铜皮，然后在外圆圆周方向放置若干组铁氧体磁铁的结构，飞轮旋转时铝皮或铜皮切割铁氧体磁铁产生的磁场，在铝皮或铜皮中产生涡流，该涡流与磁场相互作用产生阻力，然后通过调节磁铁与飞轮之间的距离调节阻力大小。由于该调节阻力的方法是采用机械方法，一般采用手动或电机拉动磁铁，因此具有以下缺陷：
1、故障率高：采用拉线或拉杆的方式，拉线或拉杆容易生锈导致不可调节，而且磁铁与飞轮间容易擦碰从容导致脱落；
2、阻力调节准确性差，经常调整不到位；
3、阻力调节反应慢，调节需要较长的反应过程；
4、外包铝皮或铜皮，工艺复杂且成本高。
实用新型内容
本实用新型旨在提供一种椭圆机，该椭圆机的阻力装置由永磁同步电机来 实现，以解决现有椭圆机的阻力装置阻力调节效果不好的问题。
具体方案如下：
一种椭圆机，包括机架以及安装在机架上的摇杆机构和踏板机构，所述踏板机构与所述摇杆机构在所述机架上联动以形成椭圆运动轨迹，还包括一阻力发生装置，所述阻力发生装置包括了一轮毂形状的永磁同步电机、控制电路以及一耗能装置，该永磁同步电机的转动轴通过轴承安装在机架上，所述踏板机构的带轮通过传动带与永磁同步电机传动连接，所述永磁同步电机与耗能装置电连接，所述控制电路与永磁同步电机电连接并且能够控制通过该永磁同步电机的电流。
进一步的，还包括一惯性轮，所述惯性轮嵌套在永磁同步电机上。
进一步的，所述耗能装置为功率电阻。
进一步的，还包括一上位机，该上位机与控制电路信号连接，以将上位机发出的阻力控制指令发送至控制电路。
进一步的，所述上位机为设置在机架上的控制器，该控制器能够设定阻力。
进一步的，所述上位机为智能终端，该智能终端内具有应用程序，该应用程序能够设定阻力。
本实用新型提供的椭圆机与现有技术相比较具有以下优点：本实用新型提供的椭圆机的阻力发生装置是由控制通过永磁同步电机的电流来实现阻力控制，其通过电流大小来实现阻力调节，即通过电子调节的方式实现，相对于现有的机械调节方式，具备实时、精确可控等优点。
附图说明
图1示出了椭圆机的立体示意图。
图2示出了椭圆机的侧视图。
具体实施方式
为进一步说明各实施例，本实用新型提供有附图。这些附图为本实用新型揭露内容的一部分，其主要用以说明实施例，并可配合说明书的相关描述来解释实施例的运作原理。配合参考这些内容，本领域普通技术人员应能理解其他可能的实施方式以及本实用新型的优点。图中的组件并未按比例绘制，而类似的组件符号通常用来表示类似的组件。
现结合附图和具体实施方式对本实用新型进一步说明。
如图1和图2所示，本实用新型提供了一种椭圆机，该椭圆机包括机架1以及安装在机架上的摇杆机构2和踏板机构3，其中，机架1的作用是为该椭圆机提供一个稳定的支撑作用，所述踏板机构3与所述摇杆机构2在所述机架1上联动以形成椭圆运动轨迹。
该椭圆机还包括一阻力发生装置4，所述阻力发生装置4包括了一轮毂形状的永磁同步电机40、控制电路42以及一耗能装置44，这里所说的轮毂形状的永磁同步电机40是指将现有的永磁同步电机的外壳形状设计成轮毂形状，其内部结构与现有的永磁同步电机相同，同样具有定子和转子，该永磁同步电机40的转动轴400通过轴承安装在机架1上，所述踏板机构3的带轮30通过传动带32与永磁同步电机传动连接，即当带轮30带动永磁同步电机40转动时，该永磁同步电机40的转子是固定不转动的，而该永磁同步电机40的壳体以及壳体内部的定子跟随带轮30转动。
所述永磁同步电机40与耗能装置电连接，由于在用该椭圆机进行锻炼的时 候，踏板机构3的带轮30带动永磁同步电机40转动，从而该永磁同步电机40的定子绕组会切割磁场，产生感应电流，该永磁同步电机40作为发电机使用，锻炼时产生的电流则通过耗能装置44消耗；所述控制电路42(该控制电路为现有技术，在此不进行赘述)与永磁同步电机40电连接并且能够控制通过该永磁同步电机40的电流，该永磁同步电机40在通电的情况下会产生阻碍骑行的阻力，通过控制通过该永磁同步电机40的电流大小可改变该永磁同步电机40的电磁转矩的大小，即可调整阻碍锻炼时带轮30转动的阻力，从而调节运动时的负载，通过电流来控制永磁同步电机的电磁转矩控制方法可通过磁场定向控制系统(FOC)来实现。即该永磁同步电机40作为该椭圆机的阻力发生装置，其通过电流大小来实现阻力调节，即通过电子调节的方式，因此具备实时、精确可控等优点。
参考图1和图2，在本实施例中，该阻力发生装置4还包括一惯性轮46，所述惯性轮46嵌套在永磁同步电机40上，即在该永磁同步电机40的外壳体上嵌套了一惯性轮46。
在本实施例中，较佳的，参考图2，所述耗能装置44为功率电阻，即在锻炼时该永磁同步电机40产生的电流通过功率电阻以热能的方式耗散。
在本实施例中，较佳的，还包括一上位机，该上位机与控制电路信号连接，以将上位机发出的阻力控制指令发送至控制电路，控制电路则根据阻力大小，设定电机对应阻力的电流值(电流值根据电机标定的阻力电流表取值)。其中，上位机可以是设置在机架上的控制器50，该控制器50能够设定阻力，控制电路可通过通用的有线接口，如：UART、CAN、485等与控制器50相连，以接收控制器50的阻力控制指令；然后根据电机机电能量转换的特点，通过FOC控制，即可实现实时、精确、平滑的阻力输出，并且可以实现精确的功率测量。另外， 所述上位机还可以是智能终端，例如智能手机、平板电脑等，智能终端可以通过无线连接的方式，例如WiFi、蓝牙等和控制电路信号连接，该智能终端内具有相应的应用程序(APP)，该应用程序能够设定阻力，然后通过无线传输的方式将阻力控制指令发送给控制电路，控制电路则根据电机机电能量转换的特点，通过FOC控制，即可实现实时、精确、平滑的阻力输出，并且可以实现精确的功率测量。
尽管结合优选实施方案具体展示和介绍了本实用新型，但所属领域的技术人员应该明白，在不脱离所附权利要求书所限定的本实用新型的精神和范围内，在形式上和细节上可以对本实用新型做出各种变化，均为本实用新型的保护范围。

Claims (6)

  1. 一种椭圆机，包括机架以及安装在机架上的摇杆机构和踏板机构，所述踏板机构与所述摇杆机构在所述机架上联动以形成椭圆运动轨迹，其特征在于：还包括一阻力发生装置，所述阻力发生装置包括了一轮毂形状的永磁同步电机、控制电路以及一耗能装置，该永磁同步电机的转动轴通过轴承安装在机架上，所述踏板机构的带轮通过传动带与永磁同步电机传动连接，所述永磁同步电机与耗能装置电连接，所述控制电路与永磁同步电机电连接并且能够控制通过该永磁同步电机的电流。
  2. 根据权利要求1所述的椭圆机，其特征在于：还包括一惯性轮，所述惯性轮嵌套在永磁同步电机上。
  3. 根据权利要求1所述的椭圆机，其特征在于：所述耗能装置为功率电阻。
  4. 根据权利要求1所述的椭圆机，其特征在于：还包括一上位机，该上位机与控制电路信号连接，以将上位机发出的阻力控制指令发送至控制电路。
  5. 根据权利要求4所述的椭圆机，其特征在于：所述上位机为设置在机架上的控制器，该控制器能够设定阻力。
  6. 根据权利要求4所述的椭圆机，其特征在于：所述上位机为智能终端，该智能终端内具有应用程序，该应用程序能够设定阻力。
PCT/CN2019/121118 2018-11-28 2019-11-27 一种椭圆机 WO2020108505A1 (zh)

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