Abstract
The electric massage chair is a common instrument in family health care. In addition to health function, to provide safety for the users is also very important. Comparing with the current safety protection technology of electric massage chair, this paper designs a residual current detection function to increase the safety performance, which provides a new way for this field. When the residual current is generated, the power is disconnected in time. It not only can protect the user’s personal safety, but also can reduce the occurrence rate of fire.
Highlights
The work flow of the RCP moduleWork power supply provides power to the residual current detection module,the motor part,the air compression device and electronic integrated remote control
The existing safety precautions of electric massage chair may still produce residual current and cause the risk of electric shock,resulting in excess heat,leading to security incidents.In order to compensate for the shortcomings of the existing technology,this paper puts forward and realizes a massage chair with residual current protection(RCP)function improving the safety of electricity
This research present the residual current protection technical scheme is summarized as follows:the motor portion connected to a mechanical linkage portion and an air compression device portion connecting an airbag portion through a PVC pipe,and the electronic integrated control remote controller being connected to a motor portion,an air compression unit portion are all connected in parallel with the outgoing end of the residual current
Summary
Work power supply provides power to the residual current detection module,the motor part,the air compression device and electronic integrated remote control. The electronic integrated remote control makes the motor part,the air compression device part,the mechanical linkage part and the airbag part cooperate complete the corresponding action.The residual current detection module starts at the time when the working power is turned on,and detects whether there is residual current at real-time.When the work power supply is connected,the automatic identification unit monitors whether there is residual current at real-time.Assuming the current which come from the power line L and go into the current detection module is recorded as I1.The current which is come from the zero line N and go into the detection module current is recorded as I2.The residual current is recorded as I3.when the residual current I3 is generated,I=I1-I2,I1>I2.The automatic identification unit records the I3 value.When I3 ≥ 10mA,the voice alarm beep,the reset instructions button bounce,the switch is disconnected within 0.1s automatically,the massage chair stops working;When I3
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