WO2015106447A1 - 一种适合遇阻控制的管状电机 - Google Patents

一种适合遇阻控制的管状电机 Download PDF

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Publication number
WO2015106447A1
WO2015106447A1 PCT/CN2014/070851 CN2014070851W WO2015106447A1 WO 2015106447 A1 WO2015106447 A1 WO 2015106447A1 CN 2014070851 W CN2014070851 W CN 2014070851W WO 2015106447 A1 WO2015106447 A1 WO 2015106447A1
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Prior art keywords
motor
driving wheel
wheel
rotation
rotation sensor
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PCT/CN2014/070851
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English (en)
French (fr)
Inventor
汤智文
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深圳市奥科伟业科技发展有限公司
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Priority to PCT/CN2014/070851 priority Critical patent/WO2015106447A1/zh
Publication of WO2015106447A1 publication Critical patent/WO2015106447A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2207/00—Specific aspects not provided for in the other groups of this subclass relating to arrangements for handling mechanical energy
    • H02K2207/03—Tubular motors, i.e. rotary motors mounted inside a tube, e.g. for blinds

Definitions

  • the present invention relates to a tubular motor suitable for resistance control, which belongs to the category of curtain drive motors.
  • a tubular motor is a commonly used driving device for curtains, particularly electric roller blinds and curtains.
  • the tubular motor generally includes a non-rotating cylinder, and at least a motor and a speed reducing device are disposed in the non-rotating cylinder.
  • the rotation formed by the motor is decelerated by the deceleration device, and then the driving wheel is driven to rotate by the output shaft of the tubular motor, and the driving wheel drives the subsequent actuator to act, for example, to drive the reel to rotate.
  • the running resistance is often increased or stuck due to the failure of the actuator of the curtain winding.
  • the resistance control of the tubular motor is generally realized by detecting the rotational speed of the motor, and the tubular motor further includes a motor rotational speed sensing unit for detecting the rotational speed of the motor and outputting a signal to the control.
  • the device when the control device finds that the motor speed is abnormal, controls the tubular motor to stop running.
  • the current of the motor is extremely high, which often leads to The burning of the motor, the second is when the curtain is unfolded, that is, due to the effect of the gravity of the curtain when descending, as long as the gravity is large enough, in many cases the driving wheel is reversed with the motor, or the downward power is derived from the movement of the motor.
  • the gravity of the curtain in this case, due to the failure of the actuator, there is a possibility that the obstacle point may be rushed under the joint action of the motor power and the curtain gravity, and the system does not detect such a resistance obstacle. That is, when the roller blind is closed, such a resistance obstacle point becomes a real resistance point, and often runs up to such a resistance point and is stuck.
  • the present invention improves the problem of excessive current resistance when the downstream resistance is detected and the motor is restarted after the jam is blocked. It is obvious that the prior art has a need for further improvement.
  • An object of the present invention is to provide a tubular motor suitable for resistance control, which is convenient for rebounding and retreating when the upstream encounters resistance, avoiding motor damage caused by starting the motor at the jamming point, and detecting in the downward process.
  • the resistance obstacle point is convenient to prevent the resistance obstacle point from being stuck when it is ascending.
  • a tubular motor suitable for resistance control includes a non-rotating cylinder, and at least a motor, a speed reducing device and a driving wheel are disposed in the non-rotating cylinder body, and the rotation of the motor is decelerated by a speed reducer Outputted to the drive wheel via the output shaft of the reducer, wherein the output shaft and the drive wheel are coupled by a keyway, and the radial width of the slot is greater than the radial width of the key, so that between the drive wheel and the output shaft Forming a transmission fit relationship with radial vacancies, including motor rotation A motion sensor and a drive wheel rotation sensor for detecting rotation of the motor, the drive wheel rotation sensor for detecting rotation of the drive wheel.
  • the driving wheel is disposed at one end of the tubular motor
  • the speed measuring wheel is disposed at the other end of the tubular motor
  • the roller blind cylinder driving the driving The wheel and the speed measuring wheel are set in the cylinder, the roller blind cylinder is rotated by the driving wheel, and the speed measuring wheel is driven to rotate by the roller blind cylinder.
  • the driving wheel rotation sensor is disposed on one side of the speed measuring wheel, the driving wheel A rotation sensor detects the rotation of the speed measuring wheel.
  • the tubular motor suitable for resistance control of the present invention if it encounters resistance during the ascending process, the motor rotation sensor will sense the decrease of the motor speed, but the control device can be controlled after the speed is reduced to a certain extent.
  • the motor stops running and controls the motor to reverse an angle to avoid jamming.
  • the key shaft fit between the drive wheel and the output shaft of the reducer has radial vacancies, it is very easy to reverse the motor.
  • the control of the book angle is very easy to implement, and there is no situation that the motor current is overloaded when the motor is reversed.
  • the keyway between the drive wheel and the output shaft of the reducer has no diameter.
  • FIG. 1 is a block diagram of a system structure of a tubular motor suitable for resistance control according to a preferred embodiment of the present invention
  • FIG. 2 is a tubular motor suitable for resistance control according to a preferred embodiment of the present invention
  • Main view
  • Figure 3 is a front elevational view of the roller blind according to Figure 2;
  • Figure 4 is a perspective view of the non-rotating cylinder removed on the basis of Figure 3;
  • Figure 5 is a partial enlarged view of A of Figure 4.
  • Figure 6 is a partial enlarged view of B of Figure 4 .
  • FIG. 1 A tubular motor suitable for resistance control according to a preferred embodiment of the present invention is as shown in FIG. 1, FIG. 2, and FIG. Description
  • the non-rotating cylinder 7 is provided with a motor 1, a speed reducing device 2, and a driving device.
  • the wheel 3, the rotation of the motor 1 is decelerated by the reducer 2, and then output to the drive wheel 3 via the reducer output shaft 21, the main point of which is that the output shaft 21 and the drive wheel 3 are coupled by a keyway, as attached
  • a keyway as attached
  • the radial width of the groove 31 formed in the drive wheel 3 is greater than the radial width of the key 32 formed on the output shaft 21, so that the drive wheel 3 and the output shaft 21
  • the transmission cooperation relationship with the radial vacancy is further included, and further includes a motor rotation sensor 5 for detecting the rotation of the motor 1, and a drive wheel rotation sensor 4 for detecting the drive wheel The rotation of 3.
  • the speed measuring wheel 9 is further included, the driving wheel 3 is located at one end of the tubular motor, the speed measuring wheel 9 is located at the other end of the tubular motor, and further comprises a roller blind cylinder 7, the roller blind cylinder 7
  • the driving wheel 3 and the speed measuring wheel 9 are set in the cylinder thereof, and the roller blind cylinder 7 is rotated by the driving wheel 3, and the speed measuring wheel 9 is driven to rotate by the roller blind cylinder 7, the driving wheel rotation sensor 4 Located on the side of the speed detecting wheel 9, the driving wheel rotation sensor 4 detects the rotation of the speed measuring wheel 9. Since the speed measuring wheel 9 is rotated in synchronization with the driving wheel 3, the rotation of the speed measuring wheel 9 detected by the driving wheel rotation sensor 4 substantially reflects the rotation of the driving wheel 3.
  • a tubular motor suitable for resistance control of the present invention includes a non-rotating cylinder, and the non-rotating cylinder is provided with at least a motor, a speed reducing device, a driving wheel, and the rotation of the motor.
  • the output shaft of the reducer is output to the drive wheel, wherein the output shaft and the drive wheel are coupled by a keyway, and the radial width of the slot is greater than the radial width of the key, so that the drive Forming a transmission fit relationship with the radial vacancy between the wheel and the output shaft, further comprising a motor rotation sensor for detecting rotation of the motor, and a drive wheel rotation sensor for detecting the drive wheel Rotation, compared with the prior art, the present invention improves the problem of the downstream resistance detection and the excessive current when the motor is restarted after the jam is blocked.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)

Abstract

一种适合遇阻控制的管状电机，包括一个非旋转筒体，该非旋转筒体内至少设置有电机、减速装置、驱动轮，该减速装置的输出轴与驱动轮之间通过键槽配合联接，槽的径向宽度大于键的径向宽度，从而驱动轮与输出轴之间形成带径向空位的传动配合关系，该管状电机还包括电机转动传感器和驱动轮转动传感器，电机转动传感器用于检测电机的转动，驱动轮转动传感器用于检测驱动轮的转动，相对于现有技术，该管状电机改善了下行遇阻检测以及遇阻卡死后电机重新启动时电流过大的问题。

Description

说 明 书
一种适合遇阻控制的管状电机 技术领域
[0001] 本发明涉及一种适合遇阻控制的管状电机， 其属于窗帘驱动电机类。
背景技术
[0002] 管状电机是窗帘特别是电动卷帘、 窗帘常用的驱动装置， 在现有技术中， 所述管状 电机一般包括一个非旋转筒体， 所述非旋转筒体内至少设置有电机、 减速装置， 电机形成的 转动经减速装置减速后经管状电机的输出轴带动驱动轮转动， 所述驱动轮带动后续的执行机 构动作， 比如带动卷筒转动。 在窗帘卷放的过程中， 常常会由于窗帘卷放的执行机构的故障 而导致运行阻力变大或出现卡死的情况， 在这样的情况下， 一般需要控制管状电机停止运 行， 否则会导致管状电机内的电机由于过流而损坏。 在现有技术中， 对于管状电机的遇阻控 制一般是通过检测电机的转速实现的， 为此管状电机内还包括一电机转速传感单元， 其用来 检测电机的转速， 并输出信号给控制装置， 控制装置一旦发现电机转速异常， 则控制管状电 机停止运转。 现有技术存在的问题主要表现在二个方面， 一是许多客户在卡死后常常习惯性 通过操作开关控制管状电机重新运行， 由于这时处于卡死阶段， 电机启动的电流极大， 常常 导致电机的烧毁， 二是在窗帘展开， 即下行时由于窗帘重力的作用， 只要这重力足够大， 在 许多情况下是驱动轮反过来带着电机转， 或者说下行的动力来源于电机的动和和窗帘的重 力， 在这种情况下， 由于执行机构的故障存在障碍点也有可能在电机动力和窗帘重力的共同 作用下而冲过， 而系统检测不到这样的阻力障碍， 到改为上行后， 即卷帘时， 这样的阻力障 碍点就成了真正的阻力点了， 往往上行运行到这样的阻力点后， 会被卡死。 综上所述， 本发 明改善了下行遇阻检测以及遇阻卡死后电机重新启动时电流过大的问题， 显然现有技术有进 一步改进的必要。
发明内容
[0003] 本发明的目的在于提供一种适合遇阻控制的管状电机， 其便于在上行遇阻时反弹回 退， 避免在卡死点启动电机而导致电机损坏， 同时能在下行过程中检测到阻力障碍点， 便于 避免所述阻力障碍点在上行时导致卡死。
[0004] 本发明的一种适合遇阻控制的管状电机， 包括一个非旋转筒体， 所述非旋转筒体内 至少设置有电机、 减速装置、 驱动轮， 所述电机的转动经减速器减速后经减速器输出轴输出 到驱动轮， 其特征在于所述输出轴与所述驱动轮之间通过键槽配合联接， 槽的径向宽度大于 键的径向宽度， 从而所述驱动轮与输出轴间形成带径向空位的传动配合关系， 还包括电机转 动传感器和驱动轮转动传感器， 所述电机转动传感器用于检测电机的转动， 所述驱动轮转动 传感器用于检测驱动轮的转动。
[0005] 作为进一步改进， 还包括测速轮， 所述驱动轮设置在管状电机的一端， 所述测速轮 设置在管状电机的另一端， 还包括卷帘筒， 所述卷帘筒将所述驱动轮和测速轮套装在其筒 内， 所述卷帘筒在驱动轮的驱动下旋转， 并通过卷帘筒带动测速轮转动， 所述驱动轮转动传 感器设置在测速轮一侧， 所述驱动轮转动传感器检测所述测速轮的转动。
[0006] 本发明的这种适合遇阻控制的管状电机， 在上行过程中如果遇阻， 电机转动传感器 将感应到电机转速的下降， 但这种转速的说下降到一定程度后控制装置可控制电机停止运转， 并控制电机反转一个角度， 避免卡死， 在本发明中， 由于驱动轮与减速器的输出轴之间的键 轴配合带有径向空位， 为此非常容易电机反转一书个角度的控制非常容易实现， 并且不会出现 遇阻启动电机反转时导致电机电流过载的情况， 而在现有技术中， 在驱动轮与减速器的输出 轴之间的键槽配合无径向空位的情况下， 控制电机反转由于电流过载而损坏电机的情况是经 常发生的， 另一个方面， 电机有效反转后， 由于键槽间存在径向空位， 为此再次启动的瞬间 是轻载的， 显然避免了大的过载电流的形成； 在下行过程中， 如果是窗帘重力起主导作用， 则在下行遇阻时， 驱动轮会先停止转动， 而这时由于减速器的输出轴与驱动轮之间的键槽配 合存在径向空位， 为此电机会继续转动一定的角度， 电机转动传感器和驱动轮转动传感器输 出的信号将会使控制装置感觉到这一情况， 一旦出现驱动轮转动停止而电机仍在转动的情 况， 控制装置可判定其为下行遇阻， 从而控制电机停止转动。 综上所述， 显然本发明的目的 得以实现。
附图说明
[0007] 图 1是本发明较佳实施例所提供的一种适合遇阻控制的管状电机的系统结构框图； 图 2是本发明较佳实施例所提供的一种适合遇阻控制的管状电机的主视图；
图 3是图 2的基础上去掉卷帘筒后的主视图；
图 4是图 3的基础上去掉非旋转筒体的立体图；
图 5是图 4的 A局部放大图；
图 6是图 4的 B局部放大图。
具体实施方式
[0008] 以下将结合本发明较佳实施例所提供的一种适合遇阻控制的管状电机及其附图对本 发明作进一步说明。
[0009] 本发明较佳实施例所提供的一种适合遇阻控制的管状电机如附图 1、 附图 2、 附图 说 明 书
3、 附图 4、 附图 5、 附图 6所示， 包括一个非旋转筒体 8， 在本较佳实施例中， 所述非旋转 筒体 7内设置有电机 1、 减速装置 2、 驱动轮 3， 所述电机 1的转动经减速器 2减速后经减 速器输出轴 21输出到驱动轮 3， 其要点在于所述输出轴 21与所述驱动轮 3之间通过键槽配 合联接， 如附图 5所示， 在本较佳实施例中， 形成在驱动轮 3上的槽 31的径向宽度大于形 成输出轴 21上的键 32的径向宽度， 从而所述驱动轮 3与输出轴 21间形成带径向空位的传 动配合关系， 还包括电机转动传感器 5和驱动轮转动传感器 4， 所述电机转动传感器 5用于 检测电机 1 的转动， 所述驱动轮转动传感器 4用于检测驱动轮 3 的转动。 在本较佳实施例 中， 还包括测速轮 9， 所述驱动轮 3位于管状电机的一端， 所述测速轮 9位于管状电机的另 一端， 还包括卷帘筒 7， 所述卷帘筒 7将所述驱动轮 3和测速轮 9套装在其筒内， 所述卷帘 筒 7在驱动轮 3的驱动下旋转， 并通过卷帘筒 7带动测速轮 9转动， 所述驱动轮转动传感器 4设置在测速轮 9一侧， 所述驱动轮转动传感器 4检测所述测速轮 9的转动。 由于测速轮 9 是与驱动轮 3同步转动的， 故所述驱动轮转动传感器 4测出的测速轮 9的转动本质上反映了 驱动轮 3的转动。
[0010] 综上所述， 本发明的一种适合遇阻控制的管状电机， 包括一个非旋转筒体， 所述非 旋转筒体内至少设置有电机、 减速装置、 驱动轮， 所述电机的转动经减速器减速后经减速器 输出轴输出到驱动轮， 其特征在于所述输出轴与所述驱动轮之间通过键槽配合联接， 槽的径 向宽度大于键的径向宽度， 从而所述驱动轮与输出轴间形成带径向空位的传动配合关系， 还 包括电机转动传感器和驱动轮转动传感器， 所述电机转动传感器用于检测电机的转动， 所述 驱动轮转动传感器用于检测驱动轮的转动， 相对现有技术本发明改善了下行遇阻检测以及遇 阻卡死后电机重新启动时电流过大的问题。

Claims

权 利 要 求 书
1. 一种适合遇阻控制的管状电机， 包括一个非旋转筒体， 所述非旋转筒体内至少设置有电 机、 减速装置、 驱动轮， 所述电机的转动经减速器减速后经减速器输出轴输出到驱动轮， 其 特征在于所述输出轴与所述驱动轮之间通过键槽配合联接， 槽的径向宽度大于键的径向宽 度， 从而所述驱动轮与输出轴间形成带径向空位的传动配合关系， 还包括电机转动传感器和 驱动轮转动传感器， 所述电机转动传感器用于检测电机的转动， 所述驱动轮转动传感器用于 检测驱动轮的转动。
2.根据权利要求 1 所述的一种适合遇阻控制的管状电机， 其特征在于还包括测速轮， 所述 驱动轮设设置在管状电机的一端， 所述测速轮设置在管状电机的另一端， 还包括卷帘筒， 所 述卷帘筒将所述驱动轮和测速轮套装在其筒内， 所述卷帘筒在驱动轮的驱动下旋转， 并通过 卷帘筒带动测速轮转动， 所述驱动轮转动传感器设置在测速轮一侧， 所述驱动轮转动传感器 检测所述测速轮的转动。
PCT/CN2014/070851 2014-01-17 2014-01-17 一种适合遇阻控制的管状电机 WO2015106447A1 (zh)

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