Power generation module, environmental sensor, and current sensor

Claims

1. Having one or more power generation elements, Each of the one or more power generation elements comprises a magnetic material and a coil wound around the magnetic material. The magnetic material is A magnetic core that generates a large Barkhausen effect in response to changes in magnetic flux, A magnetic material collecting body, which is a soft magnetic material, surrounds the outer circumference near the end of the aforementioned magnetic core, It has, In a direction perpendicular to the direction in which the magnetic core extends, the size of the magnetic collector is larger than the size of the magnetic core. One end of the magnetic material is a first magnetic field collecting surface, and the other end of the magnetic material is a second magnetic field collecting surface. When the magnetic material is near a wire carrying alternating current, the magnetic field lines generated by the current penetrate the first magnetic collecting surface, the magnetic material, and the second magnetic collecting surface, generating a voltage in the coil. A power generation module characterized by the following features.

2. An environmental sensor that receives power stored in the energy storage unit of a power generation device, A sensor unit that senses the environment or state, A wireless transmission unit that transmits information sensed by the aforementioned sensor unit, A switching unit that switches between an ON state, which supplies the power stored in the power storage unit to the wireless transmitter, and an OFF state, which does not supply the power to the wireless transmitter; It has, The aforementioned power generation device is A power generation module having one or more power generation elements, One or more rectifiers that rectify the voltage generated in the coils of one or more of the aforementioned power generation elements, The energy storage unit stores the power output from one or more rectifiers, It has, Each of the one or more power generation elements comprises a magnetic material and a coil wound around the magnetic material. One end of the magnetic material is a first magnetic field collecting surface, and the other end of the magnetic material is a second magnetic field collecting surface. When the magnetic material is near a wire through which an alternating current flows, the magnetic field lines generated by the current penetrate the first magnetic collecting surface, the magnetic material, and the second magnetic collecting surface, and the voltage is generated in the coil. An environmental sensor characterized by the following features.

3. The system further includes a voltage monitoring unit that monitors the internal voltage of the energy storage unit and, when the internal voltage becomes equal to or greater than the minimum drive voltage required for the operation of the wireless transmitter, turns the switching unit into the ON state. The environmental sensor according to feature 2.

4. One or more power generation elements, Processing unit and It has, Each of the one or more power generation elements comprises a magnetic material and a coil wound around the magnetic material. The magnetic material is A magnetic core that generates a large Barkhausen effect in response to changes in magnetic flux, A magnetic material collecting body, which is a soft magnetic material, surrounds the outer circumference near the end of the aforementioned magnetic core, It has, In a direction perpendicular to the direction in which the magnetic core extends, the size of the magnetic collector is larger than the size of the magnetic core. One end of the magnetic material is a first magnetic field collecting surface, and the other end of the magnetic material is a second magnetic field collecting surface. When the magnetic material is in the vicinity of a wire through which an alternating current flows, the magnetic field lines generated by the current penetrate the first magnetic collecting surface, the magnetic material, and the second magnetic collecting surface, and a voltage is generated in the coil. The processing unit calculates and outputs the current flowing through the electric wire based on the voltage generated in the coil of one or more power generation elements. A current sensor characterized by the following features.

5. A current sensor that receives power stored in the energy storage unit of a power generation device and senses the current, A wireless transmitter that transmits the sensed current information, A switching unit that switches between an ON state, which supplies the power stored in the power storage unit to the wireless transmitter, and an OFF state, which does not supply the power to the wireless transmitter; It has, The aforementioned power generation device is A power generation module having one or more power generation elements, One or more rectifiers that rectify the voltage generated in the coils of one or more of the aforementioned power generation elements, The energy storage unit stores the power output from one or more rectifiers, It has, Each of the one or more power generation elements comprises a magnetic material and a coil wound around the magnetic material. One end of the magnetic material is a first magnetic field collecting surface, and the other end of the magnetic material is a second magnetic field collecting surface. When the magnetic material is near a wire through which an alternating current flows, the magnetic field lines generated by the current penetrate the first magnetic collecting surface, the magnetic material, and the second magnetic collecting surface, and the voltage is generated in the coil. A current sensor characterized by the following features.