SELF-GENERATING DEVICE

A self-generation device, including: a piezoelectric patch (100), a bottom of the piezoelectric patch (100) is provided with a deformation space for accommodating the deformed piezoelectric patch (100); a vibration structure (200) including an elastic element (210) and a mass block (220) connected to the elastic element (210); a vibration trigger structure (300) which has a trigger threshold and is resilient, a bottom surface of the mass block (220) is in contact with the vibration trigger structure (300). The elastic element (210) is capable of driving the vibration trigger structure (300) to press against the piezoelectric patch (100) through the mass block (220) after receiving a force; when a driven force exerted on the vibration trigger structure (300) is greater than the trigger threshold, the vibration structure (200) generates vibrations, so that the piezoelectric patch (100) receives an alternating load and generates multiple deformations in the deformation space. In the self-generation device, by arranging the vibration structure (200), the elastic element (210) of the vibration structure (200) can drive the mass block (220) to generate vibrations when receiving a force, and then causes the piezoelectric patch (100) to generate multiple deformations in the deformation space, so that a mechanical energy generated due to the vibrations of the mass block (220) can be converted into electrical energy, and an electric energy production can be greatly increased.