CN201117987Y

CN201117987Y - Intelligent socket

Info

Publication number: CN201117987Y
Application number: CNU2007201845871U
Authority: CN
Inventors: 徐一中
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-23
Filing date: 2007-10-23
Publication date: 2008-09-17
Anticipated expiration: 2017-10-23

Abstract

The utility model discloses an intelligent socket, which is composed of a socket, a normally open switch cascaded with the socket, a normally open relay contact terminal connected with the normally open switch in parallel and a current detector; wherein, the detecting element of the current detector is a current transformator, the output ends of which are connected with a timing circuit; and the ouput of the timing circuit is connected with a relay. When the current of a socket loop is less than a threshold; the normally open relay contact terminal is off, and the power of the socket is off. The intelligent socket resolves the problems that the shutdown power consumption of the prior household appliances is high; and the charging of the prior electric bicycles consumes a great deal of power resource. The intelligent socket has the advantages of simple structure, low cost and convenient fabrication.

Description

Smart jack

Technical field

The utility model relates to the socket that a kind of household electrical appliance use, and is especially a kind of simple in structure, the low and smart jack that can cut off the power supply automatically of cost.

Background technology

As everyone knows, present most household electrical appliance such as colour TV, computer etc. are not cut off the electricity supply when shutdown, but the mode of charged standby, this mode has made things convenient for the user to adopt remote control switch, but most of user does not really need this function.According to relevant test, the average level of China's television set standby energy consumption is about 10 watts, the average level of the standby energy consumption of computer (audio amplifier ADSL cat etc.) is about 25 watts, and most users uncomfortable stop to watch or using up computer after pull out attaching plug, thereby this standby power consumption is very huge energy waste.In addition, present widely used electric bicycle uses often daytime, the charging in evening, and in fact the charging in its later stage does not have practical significance, has wasted a lot of electric power resources.The smart jack that many electricity-saving types are also arranged on the market now, but most complex structure, cost is very high.

The utility model content

The utility model provides a kind of energy-conservation smart jack for the big problem of shutdown energy consumption that solves present household electrical appliance existence.

Another purpose of the present utility model is for solving the complex structure that present electricity-saving type smart jack exists, the problem that cost is very high and a kind of simple in structure, smart jack that cost is low is provided.

The utility model is to reach the concrete technical scheme that above-mentioned technical purpose adopts to be: smart jack is by socket, form with the normal open switch of socket polyphone, relay normally open contact and the current sensing means in parallel with normal open switch, the detecting element of current sensing means is a current transformer, the output of current transformer connects timing circuit, the output of timing circuit connects relay, the electric current of receptacle loop is during less than threshold value, relay normally open contact disconnects, the socket outage.Adopt current transformer as detecting element, need not change original ac circuit, the low tension loop of timing device and ac circuit are isolated, help improving security performance.Normal open switch and relay normally open contact in parallel thereof are controlled as the break-make of ac circuit, and timing circuit is as outage time-delay usefulness, and ac circuit is cut off when preventing interim shutdown (restarting as computer crash).

As preferably, timing circuit is made up of 555 time-base integrated circuits and peripheral component.555 circuit are widely used in all many-sides such as Electronic Control, detection of electrons, instrument and meter, household electrical appliance, audible alarm, electronic toy.Can be used as oscillator, pulse generator, delay time generator, timer, square-wave generator, monostable trigger generator, bistable multivibrator, free-running multivibrator, sawtooth generator, pulse width modulator, pulse-position modulation device etc.

555 time-base circuits have following several characteristics:

1, be to combine on circuit structure by analog circuit and digital circuit, it is an one with analog functuion and logic function compatibility, can produce precise time delay and vibration.It has widened the range of application of analog integrated circuit.

2, this circuit adopts single supply.Ambipolar voltage range is 4.5V～15V; And cmos type power supply accommodation is wideer, is 2V～18V.Like this, it just can with analog computing amplifier and TTL or the shared power supply of cmos digital circuit.

3, can independently constitute a timing circuit, and timing accuracy is very high.

4, it is strong that maximum output current reaches the 200mA. carrying load ability.Can directly drive small machine, loudspeaker, relay even load.

5, peripheral circuit is few, and is simple in structure, and cost is low.

As preferably, also be provided with rectifier cell, filter element and switch element between current transformer L1 and the timing circuit.

Timing circuit also connects power circuit, and power circuit is made up of transformer, rectifier bridge and filter capacitor, and during the socket energising, power circuit is powered to timing circuit.

As preferably, during timing circuit output high level, the relay adhesive, the relay normally open contact closure, the socket energising, during the timing circuit output low level, relay is decontroled, and relay normally open contact disconnects, the socket outage.

The beneficial effects of the utility model are: the shutdown energy consumption that it has solved present household electrical appliance existence effectively reaches the problem that a lot of electric power resources is wasted in the electric bicycle charging greatly.The utility model is simple in structure, cost is low, easy to make, very big use value is arranged.

Description of drawings

Below in conjunction with accompanying drawing embodiment of the present utility model is further described.

Fig. 1 is a kind of circuit diagram of the utility model smart jack.

Fig. 2 is a kind of structural representation of the utility model smart jack.

Embodiment

Embodiment 1

In the embodiment shown in Figure 2 as Fig. 11, smart jack is by socket, form with the normal open switch S1 of socket polyphone, relay normally open contact K1-1 and the current sensing means in parallel with normal open switch S1, and its control circuit can be installed in common socket inside.The detecting element of smart jack current sensing means is current transformer L1, the output of current transformer L1 connects timing circuit by rectifier cell V2, filter element C1 and switch element V1, R1 is the load resistance of current transformer L1, and R2, R3 are the biasing resistors of switching tube V1.Timing circuit is made up of 555 time-base integrated circuit N1 and peripheral component; R4C4, R5C3 are respectively the elements that discharges and recharges of circuit working state when conversion time-delay; the output of timing circuit connects relay K 1, and C5 is anti-interference element, and V7 plays protection relay K1.Timing circuit is also connected to power circuit, and power circuit is made up of transformer T1, rectifier bridge V3-V6 and filter capacitor C2, and during socket X1 energising, power circuit is powered to timing circuit.

During smart jack work, press normal open switch S1, transformer T1 powers up, and its secondary rectifier bridge V3-V6 of passing through and filter capacitor C2 power to 555 time-base integrated circuit N1 and peripheral component, through after the of short duration time-delay of R4C4, timing circuit 555 output high level, relay K 1 adhesive, relay normally open contact K1-1 closure, socket X1 energising, household electrical appliance normally use, and circuit enters self-locking state simultaneously, decontrol normal open switch S1 rear socket X1 and continue to keep "on" position constant.This moment, current transformer L1 output was output as high level, switch element V1 conducting, and capacitor C 3 is not charged, and 555 operate as normal keep output state constant.When household electrical appliance are stopped using when being in holding state or electric bicycle and being charged to a certain degree, the electric current of ac circuit significantly reduces, when electric current reduces to a certain degree (current threshold), current transformer L1 output is output as low level, switch element V1 ends, power supply charges to C3 by R5, when C3 voltage rise to supply voltage 2/3rds the time, timing circuit 555 output low levels, relay K 1 is decontroled, relay normally open contact K1-1 disconnects (R5 to the length in C3 charging interval, the length of decision-making circuit delay time), and entire circuit comprises socket X1 outage.As reusing, need heavily to press normal open switch S1.

Claims

1. smart jack, by socket, form with the normal open switch (S1) of socket polyphone, relay normally open contact (K1-1) and the current sensing means in parallel with normal open switch (S1), it is characterized in that: the detecting element of described current sensing means is current transformer (L1), the output of current transformer (L1) connects timing circuit, the output of timing circuit connects relay (K1), the electric current in socket (X1) loop is during less than threshold value, relay normally open contact (K1-1) disconnects, socket (X1) outage.

2. smart jack according to claim 1 is characterized in that described timing circuit is made up of 555 time-base integrated circuits (N1) and peripheral component.

3. smart jack according to claim 1 is characterized in that also being provided with between described current transformer (L1) and the timing circuit rectifier cell (V2), filter element (C1) and switch element (V1).

4. smart jack according to claim 1, it is characterized in that described timing circuit also connects power circuit, power circuit is made up of with filter capacitor (C2) transformer (T1), rectifier bridge (V3-V6), and during socket (X1) energising, power circuit is powered to timing circuit.

5. according to claim 1 or 2 or 3 or 4 described smart jacks, when it is characterized in that described timing circuit is exported high level, relay (K1) adhesive, relay normally open contact (K1-1) closure, socket (X1) energising, during the timing circuit output low level, relay (K1) is decontroled, relay normally open contact (K1-1) disconnects, socket (X1) outage.