| 摘要 |
A multifunctional voltage measurement device of an emergency battery (10), comprising a circuit unit (20), a voltage measurement device (30), two voltage measurement pieces (40) and a first switch (50); the circuit unit (20) is provided with a circuit (21) and a first anode end connection point (22) and a first cathode end connection point (23) electrically connected to the circuit (21); the first cathode end connection point (23) is electrically connected to the cathode end (12) of the emergency battery (10); the voltage measurement device (30) is provided with a second anode end connection point (31) and a second cathode end connection point (32) respectively and electrically connected to the first anode end connection point (22) and the first cathode end connection point (23); one of the two voltage measurement pieces (40) and the second cathode end connection point (32) of the voltage measurement device (30) are electrically connected in parallel to the cathode end (12) of the emergency battery (10); the first switch (50) is provided with a first connection end (51), a second connection end (52), a third connection end (53) and a fourth connection end (54), and is operated at a first position (55) and a second position (56); the first connection end (51) is electrically connected to the other voltage measurement piece (40); the second connection end (52) is electrically connected to the first anode end connection point (22); and the third connection end (53) is electrically connected to an anode end (11). The multifunctional voltage measurement device measures the voltage of an electric device, and has a simple structure and a low cost. |
