Oil pressure sensor for Volvo heavy truck parts 21302639

According to the use needs of different scenes, the terminals of oil-type capacitors are generally equipped with sensors, such as a pressure sensor when monitoring the oil pressure inside the oil-type capacitors, and a temperature sensor when monitoring the temperature of the oil-type capacitors. The sensors need a power supply when working. In the prior art, battery power supply or external power supply is generally used, but

(1) if battery power supply is used, it needs regular maintenance or replacement due to the limited battery power, which is not conducive to long-term.

(2) If an external power supply is used for power supply, a large number of power lines need to be arranged in a limited space, and the routing of low-voltage wires between capacitors will be disturbed by high-frequency noise generated by capacitors. In view of the above defects, the creator of this technology finally obtained this technology after a long period of research and practice.

In order to solve the above problems, the technical scheme adopted by this technology is to provide a power supply for sensors, which comprises a power generation module, an energy storage module and a plurality of oil-type capacitor shells, wherein the power generation module is electrically connected with the energy storage module, the power generation module is arranged between the two oil-type capacitor shells, the oil-type capacitor shells naturally deform during the operation of the oil-type capacitors, the power generation module generates a certain amount of electric energy when being squeezed, and the energy storage module converts the electric energy and stores the electric energy, which is used for providing the energy storage. Further, the formula for calculating the hourly power consumption of the sensor is: Q1 = i× t× n3, where Q1 is the hourly power consumption of the sensor, I is the current value for the continuous operation of the sensor after starting, t is the time for the continuous operation, and n3 is the number of starting times of the sensor per hour; Therefore, the hourly energy storage capacity of the energy storage module satisfies the following calculation formula: where c is the hourly energy storage capacity of the energy storage module, Q1 is the hourly power consumption of the sensor, U1 is the fully charged voltage value of the energy storage module, and U2 is the discharge cut-off voltage value of the energy storage module.