Multifunctional power supply jack panel

Abstract

The invention discloses a multifunctional power supply jack panel. The jack panel is characterized by comprising a three-pin plug, a self-locking control circuit, a power supply filter circuit, a socket and a leakage warning circuit, wherein one pin of the three-pin plug is connected with a live wire of a mains socket, another pin is connected with a zero wire, and the third pin is connected witha ground wire; the self-locking control circuit comprises a piezoresistor, a microswitch, a relay, a diode and a capacitor; the power supply filter circuit comprises a common mode choke T and a capacitor; the power supply socket consists of three-pin sockets and two-pin sockets (J1-J4), a resistor and an indicating lamp; and the leakage warning circuit comprises a siren simulation integrated circuit A, a resistor, a diode, a filter capacitor and a piezoelectric ceramic plate B. The multifunctional power supply jack panel has the functions of self-locking, network appliance mutual interferenceprevention and appliance leakage warning, can be widely applied to home audio appliance, refrigerator, television and other electric appliances, and particularly has more safety significance when thejack panel is used in a socket which is not grounded in modern homes and offices.

Description

technical field [0001] The invention relates to a power plug board, in particular to a multifunctional power plug board. Background technique [0002] At present, the structure of power plug boards on the market is relatively simple, mainly composed of insurance, switches and parallel sockets. There are the following deficiencies in use: 1. The mutual interference between the power grid and electrical equipment cannot be filtered; 2. The leakage of electrical appliances on the plug board cannot Remind the user; 3. Sudden power supply after power outage of the power grid will cause great damage to the motors of refrigeration appliances; ordinary plug-in boards on the market can undertake the power connection task for household appliances with low requirements, but for household appliances with high performance requirements such as For audiophile stereos, TVs, washing machines prone to electric leakage, electric heating equipment, refrigeration equipment, etc., the plug-in boa...

AI Technical Summary

Problems solved by technology

[0002] At present, the structure of power plug boards on the market is relatively simple, mainly composed of insurance, switches and parallel sockets. There are the following deficiencies in use: 1. The mutual interference between the power grid and electrical equipment cannot be filtered; 2. The leakage of electrical appliances on the plug board cannot Remind the user; 3. Sudden power supply after power outage of the power grid will cause great damage to the motors of refrigeration appliances; ordinary plug-in boards on the market can undertake the power connection task for household appliances with low requirements, but for household appliances with high performance requirements such as For audiophiles, TVs, washing machines prone to electric leakage, electric heating equipment, refrigeration equipment, etc., the plug-in boards on the market are simple in function and have prominent disadvantages.

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