A smart film capacitor

Abstract

The invention belongs to the technical field of capacitors, and is specifically an intelligent film capacitor; a cavity is provided on the bottom wall of the capacitor body; a support spring is fixedly connected to the bottom of the cavity, and a push plate is fixedly connected to the top of the support spring. There is a mounting plate on the top of the plate, and friction balls are embedded on the mounting plate; in the present invention, a cavity is opened on the wall thickness of the bottom of the capacitor body, and a push plate supported by a supporting spring is installed in the cavity, and the top of the push plate has an embedded A mounting plate with multiple friction balls, when the vehicle is running, whether the vehicle accelerates or decelerates, or the vehicle encounters a bumpy road, the mounting plate on the top of the push plate can move on the push plate, and the friction balls generate heat to heat the capacitor body , thereby ensuring that the dielectric inside the capacitor body has sufficient conductivity when working in cold weather, improving the stability of the capacitor body during operation, and further improving the safety of the circuit when the vehicle is running.

Description

technical field [0001] The invention belongs to the technical field of capacitors, in particular to an intelligent film capacitor. Background technique [0002] Film capacitor (Film Capacitor) is also called plastic film capacitor (Plastic Film Capacitor). It uses plastic film as the dielectric, and film capacitors use metal foil as the electrode, which is overlapped with plastic films such as polyethylene, polypropylene, polystyrene or polycarbonate from both ends, and wound into a cylindrical shape. Structured capacitors. According to the type of plastic film, it is called polyethylene capacitor (also called Mylar capacitor), polypropylene capacitor (also called PP capacitor), polystyrene capacitor (also called PS capacitor) and polycarbonate capacitor. [0003] When the existing film capacitors are used in vehicles, when they encounter cold weather, the inner plastic film has a relatively high hardness at the initial use, and when used as a dielectric to conduct electri...

AI Technical Summary

Problems solved by technology

[0003] When the existing film capacitors are used in vehicles, when they encounter cold weather, the inner plastic film has a relatively high hardness at the initial use, and when used as a dielectric to conduct electricity, the conductivity is weak, so that the capacitor needs to pass through after a period of time. , to be able to work stably, causing the work of the film capacitor to be unable to be in a stable state when it is initially used, resulting in poor circuit safety when the vehicle is running. In view of this, the present invention provides an intelligent film capacitor, which can be realized faster In cold weather, the film capacitor works in a stable state, improving the safety of the circuit when the vehicle is running

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