CN2309004Y

CN2309004Y - Overcurrent protector

Info

Publication number: CN2309004Y
Application number: CN 97238552
Authority: CN
Inventors: 黄屏
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-07-15
Filing date: 1997-07-15
Publication date: 1999-02-24
Anticipated expiration: 2007-07-15

Abstract

The utility model discloses an overcurrent protector composed of an outer shell 1, a wiring terminal 2, a timer 3, a magneticcoil 4, and an electrical coil 5. When the utility model works, the electrical coil 5 generates overcurrent to drive a contact to close, so that the magnetic coil 4 forms a loop to produce a magnetic field to drive an iron core to pull a connecting rod arranged on the timer 3, and the timer is then in a power off state. The utility model has simple structure, and easy fabrication.

Description

Overcurrent protector

The utility model relates to the overcurrent protector of the automatic Control current of a kind of energy.

In daily household electricity process, have steal, fire that fire causes is bumped in electric leakage, short circuit and phenomenon such as artificial electrics shock takes place, and has many families to increase some power consumption electrical equipment on the basis of original capacitance, generation electricity consumption overcurrent and burn out ammeter.Up to the present, also there is not a kind of simple in structure, overcurrent protective device that cost is low and effective.

The purpose of this utility model provides a kind of simple in structure, cheap, effective electricity consumption overcurrent protector.

The utility model is made of shell, binding post, timer, magnetic coil, hot-wire coil.Timer is fixed on the shell, is used to control the length of interruption duration, and there is a contact its inside, and contact disconnects during power failure, cover the time of setting when timer after, contact will auto-closing, connects circuit.What magnetic coil connect is a zero line, one end directly is connected on the zero line in the lambda line, and the other end is connected on the end of fixed contact, during its work, hot-wire coil produces overcurrent, drive moving contact closure is connected the fixed contact on the live wire, makes magnetic coil form the loop, produce magnetic field, drive iron core, the connecting rod on the iron core pulling timer, timer is outage just.Moving contact is fixed on the end of a thin plate, and the fulcrum of thin plate is on an end of iron core, and its other end is connected with the adjusting double-screw bolt with regulating spring.Hot-wire coil one end is connected with the live wire of timer, and the other end is directly received on the binding post, draws live wire thus.Hot-wire coil can be used to the size of control capacittance amount, and its number of turn can be provided with according to actual needs, and general 50-70 circle just can reach requirement, and the number of turn easily makes the iron core heating too much.The other end of fixed contact is received on the live wire in the outlet.Zero line in the lambda line directly is connected with zero line in the outlet, and whole like this wiring process just is through with.

Below in conjunction with accompanying drawing the utility model is described in further detail.

Fig. 1 is a structure principle chart of the present utility model.

Fig. 2 is the cutaway view of overcurrent protector shown in Figure 1 along the A-A line.

Fig. 3 is circuit theory diagrams of the present utility model.

Overcurrent protector shown in Figure 1 is by shell 1, binding post 2, and timer 3, magnetic coil 4, hot-wire coil 5 constitutes, and they all are fixed on the shell with nut.During work, hot-wire coil 5 produces overcurrent, drives the moving contact closure, connect fixed contact, make magnetic coil 4 form the loop, produce magnetic field, drive iron core, connecting rod on the iron core pulling timer 3 disconnects the timer contact, and timer is outage just, cover the time of setting when timer after, contact will auto-closing, connects circuit, restores electricity.

In circuit theory diagrams shown in Figure 3, the live wire in the lambda line inserts timers 3 by binding post 2, and the live wire of drawing from timer 3 is received an end of hot-wire coil 5, and the other end of hot-wire coil 5 is received on the binding post 2, the live wire in the outlet that Here it is.Zero line in the lambda line is received an end of magnetic coil 4 by binding post 2, and the other end of magnetic coil 4 is received on the end of fixed contact, and the other end of fixed contact is connected on the live wire in the outlet.Zero line in the outlet by binding post 2 directly and the zero line in the lambda line join, whole like this wiring process just is through with.

The utility model is simple in structure, and is easily manufactured, good practical effect.

Claims

1, a kind of overcurrent protector, it is made of timer, magnetic coil, hot-wire coil, it is characterized in that: one of timer terminates on the live wire in the lambda line, and the other end is connected with hot-wire coil, and the other end of hot-wire coil is drawn the live wire in the outlet; One end of magnetic coil is connected with the zero line in the lambda line, and the other end is received an end of fixed contact, and the other end of fixed contact is connected on the live wire in the outlet; Zero line in the outlet directly is connected with zero line in the lambda line; Moving contact is fixed on the end of a thin plate, and the fulcrum of thin plate is on iron core one end, and its other end is connected with the adjusting double-screw bolt with regulating spring.