TV remote socket with complete power down function
Technical field
The utility model belongs to the supply socket field, especially a kind of TV remote socket with complete power down function.
Background technology
At present, the power consumption equipment in the family is more and more, function is more and more abundanter, and a lot of household electrical appliance all have function of infrared remote control usually.People in use use a teleswitch after the shutdown usually, just no longer close the power supply on the household electrical appliance, more the power line on the household electrical appliance can not pulled out, and make household electrical appliance often be in the stand-by operation state.Household electrical appliance not only produce electric energy loss when work, and also can produce certain electric energy loss under holding state, even also there is certain electric energy loss in the household electrical appliance that are connected with power supply when shutdown.People in use, usually equipment such as television set, sound equipment, DVD player are inserted in the supply socket, make these power consumption equipments that are connected in the supply socket be in start work or stand-by operation state all the time, existing supply socket does not have the standby power down function of household electrical appliance usually, more do not possess the function of cutting off the electricity supply fully, thereby cause waste of electric energy.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of reasonable in design, can control on/off on the TV power supply jack automatically to eliminate the TV remote socket with complete power down function of household electrical appliance standby power consumption.
The utility model solves its technical problem and takes following technical scheme to realize:
A kind of TV remote socket with complete power down function, comprise Socket casing, TV power supply jack on the Socket casing and infrared signal receive head, control circuit in the Socket casing comprises power circuit, infrared receiving processing circuit, load current detection circuit and relay, the input of power circuit is connected with the AC power incoming line, the power circuit output DC is the control circuit power supply, infrared signal on infrared receiving processing circuit and the Socket casing receives head and is connected, the input of load current detection circuit is connected on the AC power incoming line, control circuit also includes microprocessor, the input of this microprocessor is connected with the output of infrared receiving processing circuit, the A/D input of this microprocessor is connected with the output of load current detection circuit, the output of microprocessor is connected with relay, one end of the contact switch of relay (J) is connected on the supply hub AC power incoming line before, and the other end of the contact switch of relay (J) is connected with the TV power supply jack.
And, described load current detection circuit is is mainly connected and composed by current transformer, sampling resistor, operational amplifier, the input of current transformer is connected on the AC power incoming line, its output is connected with sampling resistor, the output of sampling resistor is connected with operational amplifier, and the output of operational amplifier is connected with OR circuit.
And that described current transformer adopts is ZMCT103C, and what sampling resistor adopted is 1206 precision resistances, and what described operational amplifier adopted is the AD8604 chip.
And what described infrared signal received the head employing is the wide spectrum infrared receiving tube.
And described power circuit mainly is made of power supply chip 7812 and 7805.
And described TV power supply jack quantity is 1~10.
Advantage of the present utility model and good effect are:
1, this TV remote socket is with microprocessor and infrared receiving processing circuit, load current detection circuit organically combines, can detect the electric current on the loaded line and it is imported in the microprocessor by load current detection circuit, by microprocessor electrical equipment such as television set being carried out operating state detects, after electrical equipment such as detecting television set is in holding state and keeps a period of time, automatically the contact switch (J) with relay disconnects, cut off the power supply on the TV power supply jack, make be connected on the TV power supply jack electrical equipment such as television set thoroughly with the AC power disconnection, thereby eliminated the standby power consumption problem of electrical equipment such as television set.
2, this TV remote socket is provided with a wide spectrum infrared receiving tube that is connected with control circuit, this wide spectrum infrared receiving tube can receive the infrared signal of Infrared remote controller, and can be by contact switch (J) adhesive of microprocessor control relay, the power supply of energized socket, realized on/off controlled function, had automaticity height, characteristics easy to use supply socket.
3, the utility model is reasonable in design, microprocessor can detect the operating state that is connected to the electrical equipment such as television set on the TV power supply jack automatically, realization is to the break-make controlled function of the power supply of supply socket, eliminated the standby power consumption problem of electrical equipment such as television set effectively, under the identical situation of function, make circuit simpler, reduced device and power consumption simultaneously, reduced clutter generation, increased antijamming capability, have automaticity height, characteristics easy to use.
Description of drawings
Fig. 1 is an outward appearance front view of the present utility model;
Fig. 2 is the theory diagram of control circuit;
Fig. 3 is the theory diagram of load current detection circuit.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is further described.
A kind of TV remote socket with complete power down function as shown in Figure 1, is made of Socket casing 2 and inner control circuit thereof.Be provided with AC power incoming line 1 in Socket casing one side, this AC power incoming line comprises live wire, zero line and ground wire, and this AC power incoming line is connected with control circuit; On Socket casing, be provided with 1~10 TV power supply jack 3, above-mentioned TV power supply jack and AC power incoming line are connected in parallel in Socket casing, present embodiment is provided with 5 TV power supply jacks, can connect equipment such as TV, sound equipment, DVD player on the TV power supply jack; Also be provided with the infrared signal that is connected with the control circuit of Socket casing inside and receive 4 on Socket casing, this infrared signal receives head and can receive infrared signal that remote controller sends and start the socket power supply by control circuit.
Control circuit in the Socket casing as shown in Figure 2, is connected and composed by power circuit, infrared receiving processing circuit, microprocessor, load current detection circuit and relay.In the present embodiment, microprocessor is the ATMEGA8-8AU chip of AVR series, the input of power circuit is connected with the AC power incoming line, power circuit mainly is made of power module 7812 and 7805 chips, the input of this power circuit is connected with the AC power incoming line, and power circuit output 5V and 12V DC power supply are the control circuit power supply.Infrared signal on infrared receiving processing circuit input and the Socket casing receives head and is connected, what this infrared signal received the head employing is the wide spectrum infrared receiving tube, can receive the infrared signal of any wavelength by this wide spectrum infrared receiving tube, the output of infrared receiving processing circuit is connected to the input of microprocessor.Load current detection circuit is mainly by current transformer, sampling resistor, operational amplifier connects and composes, in the present embodiment, that described current transformer adopts is the ZMCT103C that bright Electronics Co., Ltd. is selected in Nanjing, what sampling resistor adopted is 1206 precision resistances of one of percentage precision, what described operational amplifier adopted is that no phase shift function is the AD8604 chip, the input of current transformer is connected on the AC power incoming line, its output is connected with sampling resistor, the output of sampling resistor is connected with operational amplifier, the output of operational amplifier is connected to the A/D input of microprocessor, the output of microprocessor is connected with relay, and the contact switch of this relay (J) is connected on the TV power supply jack AC power incoming line before.Microprocessor can be judged the current signal of load current detection circuit input, judges the operating state that is connected the electrical equipment such as television set on the socket, and then with the disconnection of the contact switch (J) of relay, thoroughly cuts off the power supply of TV power supply jack.
Operation principle of the present utility model is: when electrical equipment such as needs use television set, when the infrared signal reception head on the use Infrared remote controller alignment socket housing is operated, Infrared remote controller is sent infrared pulse signal, infrared receiving processing circuit need not be discerned key assignments and can export high level signal " 1 " and send into microprocessor, contact switch (J) adhesive through microprocessor processes rear drive relay, and keep a period of time (as 3 minutes), in this section period (3 minutes), if electrical equipment start work such as television set, load current detection circuit has detected load current, export high level after treatment to microprocessor, the contact switch of latching relay (J) adhesive, and keep normal work; If not start of electrical equipment such as television set in this section period (3 minutes), infrared receiving processing circuit output low level signal is to microprocessor, through the disjunction automatically of the contact switch (J) of microprocessor processes rear drive relay, avoided causing after the socket energising waste of awaiting electric energy; When electrical equipment such as television set are in holding state, load current detection circuit detects less than current signal, this moment, load current detection circuit output low level signal was to microprocessor, make contact switch (J) disjunction automatically of relay through microprocessor, thereby thoroughly disconnect the power supply of electrical equipment such as television set, eliminated the waste of awaiting electric energy.
Embodiment described in the utility model is illustrative; rather than it is determinate; therefore the utility model is not limited to the embodiment described in the embodiment; every by those skilled in the art according to other execution modes that the technical solution of the utility model draws, belong to the scope of the utility model protection equally.