Supercapacitor air tightness test device and test method

Abstract

The invention discloses a supercapacitor air tightness testing device and testing method, comprising a bracket, a housing, a chassis, a first conveyor belt and a controller, a movable rod connected with a motor is arranged between the bracket and the housing, and the bottom of the housing is A first conveyor belt is provided, and several chassis adapted to the casing are evenly arranged on the first conveyor belt. The inside of the casing is a cavity, and a vacuum gauge and a first pressure gauge are provided on the casing. The inflation device is connected with the vacuum pump, and the controller is respectively connected with the first conveyor belt, the motor, the vacuum gauge, the first pressure gauge and the vacuum pump. The invention has a reasonable design, replaces labor, reduces labor intensity, saves labor costs, reduces errors caused by manual operations, effectively improves accuracy, shortens time consumption, effectively improves work efficiency, and ensures battery quality.

Description

technical field [0001] The invention belongs to the technical field of capacitors, and in particular relates to a supercapacitor airtightness testing device and testing method. Background technique [0002] Supercapacitors (ultracapacitor), also known as Electrochemical Capacitors (Electrochemical Capacitors), Electric Double-Layer Capacitors (Electrical Double-Layer Capacitor), Gold Capacitors, Farad Capacitors, are developed from the 1970s and 1980s. An electrochemical element that uses electrolytes to store energy. It is different from traditional chemical power sources. It is a power source with special properties between traditional capacitors and batteries. It mainly relies on electric double layers and redox pseudocapacitive charges to store electrical energy. However, no chemical reaction occurs in the process of its energy storage. This energy storage process is reversible, and it is precisely because this supercapacitor can be repeatedly charged and discharged hun...

AI Technical Summary

Problems solved by technology

[0014] The main methods in the prior art are as follows: 1. Put a certain number of capacitor samples upside down in a vacuum box, vacuumize and keep it for a certain period of time, and manually check whether there is leakage to judge the airtightness of the capacitor. This method is time-consuming, Waste of labor, low work efficiency, and affect the test results; 2. Put a certain number of capacitor samples upside down in a high-temperature box, heat and keep them warm for a certain period of time, and manually check whether there is leakage to judge the airtightness of the capacitors. This method consumes 3. Place the same number of capacitor samples and capacitor standard products in two sealed tanks, and place them in two airtight tanks. Enter the gas in the tank, and judge the airtightness of the capacitor by comparing the flow rate of the capacitor sample with the capacitor standard product through the flow meter. This method uses instruments instead of labor, which reduces labor intensity, but manual judgment is still required. At the same time, each seal The gas content in the tank and the capacitor sample with poor airtightness is slightly different, and the capacitor sample with poor airtightness is generally in a state of slight leakage, so when the initial gas volume is inconsistent, errors will occur, resulting in Missed or wrong detection affects work efficiency and safety

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