Resistance box

• Main Authors: LUO QIREN, LI YONGXIU, ZHAO XUNBO, CHEN ZHIXIONG
• Format: Patent
• Language: Chinese; English
• Published: 27.11.2020
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; RESISTORS; TESTING

The invention discloses a resistance box, which comprises a box body, a plurality of resistance turntables, an output high end and an output low end. Each resistance turntable comprises a resistance disc, a character disc and a rotary switch. The resistance turntable and the character disc are arranged in the box body. The rotary switch comprises a first rotating shaft used for placing a dial, a second rotating shaft used for placing a resistor disc, and a coupling connecting the first rotating shaft and the second rotating shaft. The box body comprises a display panel, and the display panel is provided with an indication window used for displaying numerical values on the character disc. The resistor disc comprises a plurality of resistors connected in series, a plurality of connecting contact pieces arranged at the two ends of each resistor respectively, two contact switches and two wiring terminals connected with the output ends connected in series, first contacts of the two contactswitches are fixedly conn