Adjustable capacitance box controlled by three-contact rotating needle and adjusting method

• Main Authors: ZHAO PENGFEI, YANG YULONG, YUE GUOHUA, DU ZHIYE, HUANG ZIREN
• Format: Patent
• Language: Chinese; English
• Published: 05.04.2024
• Subjects: BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; PRINTED CIRCUITS

The invention discloses an adjustable capacitance box controlled by a three-contact rotating needle and an adjusting method. The adjustable capacitance box comprises a capacitance box shell, five groups of capacitance box knobs, five groups of three-contact rotating needles and a PCB (Printed Circuit Board), the capacitor box shell is located outside and plays a role in supporting and fixing. The capacitance box knob is positioned on the upper surface of the capacitance box shell, is printed with digits outside and is used for indicating and adjusting the capacitance, and the interior is connected with the three-contact rotating needle and is used for controlling the size of the switched-on capacitance; the three-contact rotating needle is located between the capacitance box knob and the PCB, and the needle head is in contact with the PCB to play a role in switching and conducting a circuit; the PCB is located at the bottommost part of the variable capacitance box, and the change of the output capacitance is