Method for controlling temperature of electrolytic capacitor and temperature-controllable electrolytic capacitor using same

Abstract

The invention discloses a method for controlling the temperature of an electrolytic capacitor and a temperature-controllable electrolytic capacitor using the method. According to the method for controlling the temperature of an electrolytic capacitor, a thermoelectric refrigerating unit, a temperature sensor and a heat insulation layer are arranged outside an electrolytic capacitor; the temperature sensor and the thermoelectric refrigerating unit are both electrically connected with a control main board; the temperature sensor is used for detecting the temperature of the electrolytic capacitor and sends a temperature signal to the control main board; according to the temperature of the electrolytic capacitor, the control main board adjusts the direction and flow of current passing through the thermoelectric refrigerating unit so that the thermoelectric refrigerating unit performs heating or refrigerating operation the electrolytic capacitor to adjust the temperature of the electrolytic capacitor to keep in a preset value range. The method disclosed by the invention can control the temperature of the electrolytic capacitor at a high temperature, prolong the service life of the electrolytic capacitor and lower the overall cost of products in fields of street lights and other products which use the an electrolytic capacitor.

Description

technical field [0001] The invention relates to a method for controlling temperature, in particular to a method for controlling the temperature of an electrolytic capacitor. The invention also relates to a temperature-controllable electrolytic capacitor realized by the method. Background technique [0002] Electrolytic capacitors are one of the most important basic electronic components in electronic engineering. They are often used in circuits to perform functions such as filtering, coupling, and bypassing. In the field of switching power supplies, electrolytic capacitors are the first choice for energy storage, smoothing and filtering applications. [0003] In the design process of electronic equipment, it is inevitable to select the appropriate capacitor. As far as the medium and large capacity products above 100μF are concerned, electrolytic capacitors are the most widely used so far because they are cheap. Under normal working conditions, the life of an electrolytic ...

AI Technical Summary

Problems solved by technology

Due to the working environment of street lamps, its working temperature range is very large, especially in high and low temperature weather. At high temperatures, the life of electrolytic capacitors is greatly shortened,

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