A New Type of Self Driven Door Handle

2. The Mechanism Of Friction Power Generation

Actually, the phenomenon of friction power generation has always been in our side, the friction effect is one of the most common phenomena in nature when two different materials are rubbed against each other and contacted with the surface. According to the previous experimental basis, it can be found that the performance of friction mainly depends on the material and structure. The perfect combination of structural precision design and special materials will play a role in generating electricity. First, their surface will produce positive and negative electrostatic charge due to the triboelectrification and electrostatic induction when two different materials contacts each other, as shown in Figure 1. When the two materials separated due to external mechanical force, the positive and negative charges generated by the contact effect are separated, which will result in an induced electromotive force on the upper and lower electrodes of the material. If the load is connected between the two electrodes or in a short circuit, this potential difference will drive the electrons between the two electrodes flowing through the external circuit. In this mechanism, the electrical energy can be used on the RF signal trigger processing circuit. This process is shown in Figure 1.