CN2912001Y

CN2912001Y - Microelectronic safety protecting plug and/or socket

Info

Publication number: CN2912001Y
Application number: CN 200620050438
Authority: CN
Inventors: 谢玉胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-03-29
Filing date: 2006-03-29
Publication date: 2007-06-13
Anticipated expiration: 2016-03-29

Abstract

The utility model relates to a microelectronic type safety protection plug or socket, which intends to provide a multi-size plug or socket with creepage, overload short circuit and strong magnetic field radiation protection and capable of cutting off load, and earth leakage protection current is small, with no power consumption in normal operating state. The utility model comprises a plug or a socket body and a microelectronic type safety protective device, the safety protective device is positioned in the plug or the socket case. The utility model is characterized in that: the microelectronic type safety protective device comprises an electric supply input(35), an electric supply output body(34), a control switch(37) connected between the electric supply input and the electric supply output body, an overload short circuit test circuit(33) connected with a creepage test circuit(31), a driver(32), connected with the creepage test circuit, which is connected with an alarm and control circuit(36) and connected with the control switch(37), and a DC power supply(30) connected with the alarm and control circuit(36). The driver adopts high sensitive one-way controllable silicon and is extensively applicable to a plurality of electric places.

Description

Microelectronic safeguard protection plug or socket

Technical field

The utility model is a kind of microelectronic safeguard protection plug or socket.

Background technology

" earth leakage protective device safety monitor regulation " regulations of rules: humidity, high temperature, metal occupy the good place of the big place of coefficient and other conduction, and auxiliary places such as boiler room, pump house, dining room, bathroom, hospital, and earth leakage protective device must be installed.In the new building wall skin socket is installed separately earth leakage protective, but generally only with an earth leakage protective device, the action protection electric current is bigger, operate time is longer.When a certain equipment or instrument electric leakage, whole tripping operation influences miscellaneous equipment.The dwelling house that past builds thinks little of ground connection, though there is Three-hole socket in many families, has only two leads, lacks earth connection, increases earth connection and extremely bothers.Do not have good route protection at all, make electrical appliance just have sizable danger! If factor such as the overweight or power supply short circuit of load causes fire incident on the other hand, the situation of loss of life or personal injury happens occasionally, and has caused great infringement for people's lives and properties.Also have some safeguard protection sockets or plug to overcome the above problems at present, defencive function is also many, but its structure is complicated and do not have a high-intensity magnetic field protection; Maybe can only report to the police and can not disconnecting consumers; Or power consumption in normal operation; Or connect under the anti-situation at live wire and zero line and to lose protection!

Summary of the invention

The purpose of this utility model provides a kind of many specifications, novelty simple in structure with regard to being to overcome the above-mentioned deficiency of prior art; volume is little; safeguard protection socket or plug that cost is low; make it without earth connection, connect at live wire and zero line also have earth leakage protective under the anti-situation, overload short-circuit protection and high-intensity magnetic field anti-radiation protection, sound and light alarm and disconnecting consumers under guard mode; and the earth leakage protective electric current is little; be active in one's movements, have precedence over the wall earth leakage protective device, not power consumption in normal operation.

Solving the technical scheme that its technical problem adopts is: manufacture and design a kind of microelectronic safeguard protection plug or socket, form by plug or jack body and microelectronic safety guard, safety guard is installed in the housing of plug or socket, it is characterized in that: the microelectronic safety guard is serially connected with control switch therebetween by civil power input and output body; The overload short-circuit detecting circuit connects electric-leakage detection circuit and connects driver again; Driver connects warning and is connected control switch again with control circuit; Warning is connected dc power supply and forms with control circuit.Described driver adopts highly sensitive one-way SCR.Also be provided with relay indicating light, reset button, testing button in the protective device.Its basic functional principle is: when electric appliance casing and live wire or zero line are collided or had certain leak resistance, remove to trigger controllable silicon by electric-leakage detection circuit, drive and report to the police and control, produce sound and light alarm and disconnecting consumers; When overload short circuit or the radiation of electrical equipment generation high-intensity magnetic field, connect electric-leakage detection circuit and remove to trigger controllable silicon equally, drive warning and control, produce sound and light alarm and disconnecting consumers by detecting element; Touching reset button makes not conducting of controllable silicon and resets.

The beneficial effects of the utility model are: electric leakage, overload and short circuit, the radiation of electrical equipment high-intensity magnetic field are protected simultaneously, and circuit structure is simple and reliable, and low cost is active in one's movements; The electrical appliance load is cut off in the synchronous warning of acousto-optic simultaneously; Live wire and zero line connect instead, no earth connection, when plug loose contact or appliance switch bad, equally can the implement security protection; Not power consumption under the normal operating conditions.

Description of drawings:

Fig. 1 is the circuit block diagram of the utility model embodiment 1;

Fig. 2 is the circuit connection diagram of the utility model embodiment 2.

Embodiment:

Embodiment as shown in drawings; the utility model is made up of plug or jack body and microelectronic safety guard; safety guard is installed in the housing of plug or socket; it is characterized in that: the microelectronic safety guard is by civil power input (35); civil power output body (34); be serially connected with control switch (37) therebetween; overload short-circuit detecting circuit (33) connects electric-leakage detection circuit (31) and connects driver (32) again; driver (32) connects warning and is connected control switch (37) again with control circuit (36), and warning is connected dc power supply (30) and forms with control circuit (36).Wherein: the external 220V power frequency AC in A, B two ends of civil power input (35); C, the D of civil power output body (34), E end connects zero-power line, live wire and the ground wire of power consumption equipment or instrument or three socket sheets of difference gang socket, the central socket sheet of E termination socket respectively; Control switch (37) is made of two groups of normally closed switch J1-1, J1-2 of miniature control relay J1, is connected between civil power input (35), civil power output body (34) and the overload short-circuit detecting inductance element J2; Overload short-circuit detecting circuit (33) is made up of inductance element J2 and dry reed switch K, and dry reed switch K is connected in D, the E end, and J2 is on dry reed switch K; Electric-leakage detection circuit (31) is connected on successively in E, the D end, is connected on successively in E, the C end by 1,2 pin, resistance R 7, the diode D4 of resistance R 5, photoelectrical coupler IC2 by 1,2 pin, resistance R 6, the diode D3 of resistance R 5, photoelectrical coupler IC2; Driver (32) is composed in parallel by highly sensitive unidirectional controllable silicon S CR and reset button AN1, the positive pole of controllable silicon SCR connects the report to the police negative terminal that is connected dc power supply (30) with control circuit (36), negative pole, 3 pin that the control utmost point connects photoelectrical coupler IC2, and resistance R 3 is connected on 4 pin of IC2 and the positive output end of dc power supply (30); Report to the police and to be made up of the coils from parallel connection of coils of the resistance R 2 of connecting and alarm lamp LED1 and buzzer BZ, diode D2, miniature control relay J1 with control circuit (36), the positive pole of diode D2 connects the positive output end that the positive pole of controllable silicon SCR, negative pole connect dc power supply (30); The anode that dc power supply (30) is connected on civil power input A, B end, rectifier bridge D1 by resistance R 1 and capacitor C 1 back in parallel and two ac input ends of rectifier bridge D1 is connected the negative terminal that is connected in rectifier bridge D1 of 2 pin of 3 pin connection filter capacitor C3 anode, IC1 of the anode of filter capacitor C2, IC1 and capacitor C 2, C3 negative terminal and is formed with 1 pin of integrated package of pressure-stabilizing IC1.Also be provided with relay indicating light LED2 and testing button AN2 in the protective device, relay indicating light LED2 and resistance R 4 are connected on power supply output C, D end, testing button AN2 is connected on power supply output D, E end.Reset button AN1, testing button AN2 adopt the soft-touch type key switch, touch reset button AN1 and make controllable silicon SCR lose conducting voltage not work and reset, and touch testing button AN2 and are used for whether reliably working of test safety protective device.Make dry reed switch K the E end is charged, electrical leakage all can trigger the controllable silicon SCR conducting because of the action of a magnetic field closure and power supply loose contact make when electrical equipment produces high-intensity magnetic field radiation, overload short circuit, driving reports to the police reports to the police with control circuit (36) and also to cut off load.

The resistance of regulating resistance R 3, R5 in the described electric-leakage detection circuit (31) can change plug or socket residual operating current size, satisfy different electric leakage specification requirements, diode D3, the D4 purpose of series resistance R6, R7 respectively are in order to reduce the anti-requirement of withstand voltage to diode D3, D4, can to reduce cost.

Inductance element J2 in the described overload short-circuit detecting circuit (33) changes it and goes up coil turn and position around dry reed switch K, can change the size of overload short circuit current protection, the design plurality of specifications.

Described plug or socket can be made the fixed wall socket type, also can be made into mobile socket plate form, also can be made into the plug form.Among the different embodiment, described miniature control relay J1 is electromagnetic relay, reed relay or solid-state relay.Described dc power supply is small-sized step-down rectifier filter power supply or dry cell.Except that relay indicating light LED2, alarm lamp LED1, reset button AN1, testing button AN2 were installed on the housing, whole microelectronic safety guard placed in the housing, and the shell position above buzzer BZ has sound releasing hole.

Claims

1; a kind of microelectronic safeguard protection plug or socket; form by plug or jack body and microelectronic safety guard; safety guard is installed in the housing of plug or socket; it is characterized in that: the microelectronic safety guard is by civil power input (35); civil power output body (34); be serially connected with control switch (37) therebetween; overload short-circuit detecting circuit (33) connects electric-leakage detection circuit (31) and connects driver (32) again; driver (32) connects warning and is connected control switch (37) again with control circuit (36); reporting to the police is connected dc power supply (30) composition with control circuit (36), also is provided with relay indicating light LED2 and testing button AN2 in the protective device.

2, safeguard protection plug according to claim 1 or socket is characterized in that:

C, the D of a, civil power output body (34), E end connects zero-power line, live wire and the ground wire of power consumption equipment or instrument or three socket sheets of difference gang socket respectively, the central socket sheet of E termination socket, control switch (37) is made of two groups of normally closed switch J1-1, J1-2 of miniature control relay J1, be connected between civil power input (35), civil power output body (34) and the overload short-circuit detecting inductance element J2

B, overload short-circuit detecting circuit (33) are made up of inductance element J2 and dry reed switch K, dry reed switch K is connected in D, the E end, J2 is on dry reed switch K, electric-leakage detection circuit (31) is connected on successively in E, the D end, is connected on successively in E, the C end by 1,2 pin, resistance R 7, the diode D4 of resistance R 5, photoelectrical coupler IC2 by 1,2 pin, resistance R 6, the diode D3 of resistance R 5, photoelectrical coupler IC2

C, driver (32) are composed in parallel by highly sensitive unidirectional controllable silicon S CR and reset button AN1, the positive pole of controllable silicon SCR connects the report to the police negative terminal that is connected dc power supply (30) with control circuit (36), negative pole, 3 pin that the control utmost point connects photoelectrical coupler IC2, resistance R 3 is connected on 4 pin of IC2 and the positive output end of dc power supply (30)

D, warning and control circuit (36) are made up of the coils from parallel connection of coils of the resistance R 2 of connecting and alarm lamp LED1 and buzzer BZ, diode D2, miniature control relay J1, positive pole, the negative pole that the positive pole of diode D2 connects controllable silicon SCR connects the positive output end of dc power supply (30)

The anode that e, dc power supply (30) are connected on civil power input A, B end, rectifier bridge D1 by resistance R 1 and capacitor C 1 back in parallel and two ac input ends of rectifier bridge D1 is connected the negative terminal that is connected in rectifier bridge D1 of 2 pin of 3 pin connection filter capacitor C3 anode, IC1 of the anode of filter capacitor C2, IC1 and capacitor C 2, C3 negative terminal and is formed with 1 pin of integrated package of pressure-stabilizing IC1

F, relay indicating light LED2 and resistance R 4 are connected on power supply output C, D end, and testing button AN2 is connected on power supply output D, E end.

3, safeguard protection plug according to claim 1 or socket is characterized in that described plug or socket can make the fixed wall socket type, also can be made into mobile socket plate form, also can be made into the plug form.

4, safeguard protection plug according to claim 2 or socket is characterized in that described dc power supply is small-sized step-down rectifier filter power supply or dry cell.

5, safeguard protection plug according to claim 2 or socket; it is characterized in that the resistance scalable of resistance R 3, R5 in the described electric-leakage detection circuit (31), inductance element J2 coil turn and position in the described overload short-circuit detecting circuit (33) are adjustable.

6, safeguard protection plug according to claim 2 or socket is characterized in that described miniature control relay J1 is electromagnetic relay, reed relay or solid-state relay.