Automatic Polarity Identification Device

• Main Authors: YEPING, FAN, ZHONGREN, ZHANG, WEILING, MA, ZHILIANG, JIANG
• Format: Patent
• Language: English
• Published: 24.05.2012
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; SYSTEMS FOR STORING ELECTRIC ENERGY; TESTING

The invention involves an automatic polarity identification device, which includes an electromagnetic module connected to a control circuit. The electromagnetic module involves a magnetic inductor, a 5 movable contact plate coaxially arranged with the magnetic inductor and a stationary contact plate. The control circuit includes a reverse connection alarm protector module connected with a forward connection conduction module. The reverse connection alarm protector module includes an alarm module and a protective module, the protective module involves a second diode and a photocoupler. The forward-connection conduction module involves a conduction module and an indication module, 10 respectively connected with the said photocoupler. The invention provides an automatic polarity identification device, which through the use of the magnetic power control, guarantees that the clamps, regardless whether they are connected correctly to the external power supply, can automatically identify the connection status and guarantee the normal charging performance so that the power supply and electric appliances are protected.