CN101834392B - Intelligent electricity-saving protective control plug socket for television - Google Patents

Abstract

The invention discloses an intelligent power-saving protection and control row socket for TV, which comprises a row socket housing and a jack which is arranged on the row socket housing and can be connected with an external electric appliance. wire and ground wire, wherein the jack includes a main control jack and a controlled jack, and is also provided with a power saving protection control circuit connected to the power supply, the power saving protection control circuit includes current transformers, connected in parallel The transient surge suppression unit between the live line and the neutral line and the main control module, the main control jack, the current transformer and a controlled switch are connected in series and then connected in parallel with the main control module. The transient surge suppression unit, the main control module and the current transformer are organically combined to realize the integration of the functions and characteristics of various power savers and power-saving row sockets and embed them in the row socket. In the application, the power saving rate is as high as 30%, and the power waste removal rate can reach more than 35%.

Description

An intelligent power-saving protection control row socket for TV

technical field

The invention relates to the field of power-saving protection and control, in particular to an intelligent power-saving protection and control row socket for televisions.

Background technique

At present, due to the problems of power waste, excess energy consumption, and standby energy consumption of electrical equipment in the electrical system, it not only has a destructive effect on electrical equipment, but also seriously reduces the efficiency of electricity use, resulting in a waste of electrical energy resources. In order to save power resources and protect various electrical equipment, various types of power savers or power saving row sockets can be installed in the power consumption system to solve the problem. These power savers or power saving row sockets have their own functional characteristics. There are also their own limitations. If only any kind of power saver or power saving row socket is used, the best power saving effect and effective protection of electrical equipment cannot be achieved. If multiple types of power savers or power savers are used The row of sockets is used in a power consumption system at the same time, which increases the investment cost of the user. In addition, as more and more electrical appliances such as TVs are used, their power consumption has increased sharply. This is not only reflected in the power loss when electrical appliances such as TVs are working, but also in TVs and connected DVD players, functional players, etc. The most fundamental method for the power consumption of equipment in the standby state is to completely disconnect these electrical appliances from the power supply, so as to completely eliminate the standby energy consumption. Therefore, the standby power consumption problem of electrical appliances such as TVs still cannot be effectively solved. How to reduce the power consumption and low cost of electrical appliances when they are in standby is a technical problem to be solved urgently in the industry.

Contents of the invention

In order to solve the technical problem that the existing power saving device cannot eliminate the standby energy consumption of electric appliances, the invention provides an intelligent power saving protection control row socket for TV.

In order to solve the above-mentioned technical problems, the technical solution provided by the present invention is: an intelligent power-saving protection control row socket for TV, including a row socket housing, a socket set on the row socket housing and capable of connecting with external electrical appliances. hole, the jack is connected to an external power supply including live wires, neutral wires and ground wires, wherein the jack includes a main control jack, and is also provided with a power-saving protection control circuit connected to the power supply, the power-saving protection The control circuit includes a current transformer, a transient surge suppression unit and a main control module connected in parallel between the live line and the neutral line, and the main control jack, the current transformer and a controlled switch are connected in series and then connected to the The above main control modules are connected in parallel.

Wherein, the jack further includes a controlled jack, and the controlled jack is connected in parallel with the series-connected main control jack and the current transformer.

Wherein, the jack further includes a normally-on jack, and the normally-on jack is connected in parallel between the live wire and the neutral wire.

Wherein, the main control module includes a microprocessor, an operational amplifier circuit comprising a first sampling amplifier circuit and a second sampling amplifier circuit and a receiving panel connected to the microprocessor; the output terminal of the first sampling amplifier circuit is connected to the One input end of the microprocessor is connected, the output end of the second sampling amplifier circuit is connected to the other input end of the microprocessor, the input end of the first sampling amplifier circuit is connected to the current transformer connected.

Wherein, the first sampling and amplifying circuit includes a sampling resistor and an operational amplifier, and the second sampling and amplifying circuit is connected to the microprocessor through an isolation resistor connected in series.

Compared with the prior art, the present invention organically combines devices such as the transient surge suppression unit, the main control module and the current transformer, and realizes the integration of the functional characteristics of various power savers and power saver sockets. And embedded in the row socket, it is applied to the TV power supply row socket. When the TV is in standby, the circuit of the main control jack and the controlled jack will be cut off, which can also effectively remove power waste such as transients and surges, and reduce the The increase in power consumption caused by these power wastes has been improved, the power consumption efficiency of the entire power system has been improved, and excess power consumption has been reduced. The power saving rate can be as high as 30%, and the removal rate of power waste (transient, surge) can reach 35% or more.

Description of drawings

The present invention is described in detail below in conjunction with accompanying drawing and embodiment, wherein:

Fig. 1 is the structural representation of preferred example 1 of the present invention;

Fig. 2 is the structural representation of preferred example 2 of the present invention;

Fig. 3 is a schematic circuit diagram of a preferred example of the present invention.

Fig. 4 is a working flow diagram of the present invention.

Detailed ways

Preferred example 1, as shown in Figure 1 and Figure 3, an intelligent power-saving protection control row socket for TV, including a row socket housing, and a jack that is arranged on the row socket housing and can be connected to external electrical appliances , the jack is connected to the external power supply including live wire, neutral wire and ground wire. The electrical protection control circuit includes a current transformer 3, a transient surge suppression unit 4, and a main control module 5 that controls the power-on and power-off of the circuit in the socket. The transient surge suppression unit 4 and the main control module 5 are connected in parallel to each other on the live line Between the zero line and the main control jack 1, the current transformer 3 and the controlled switch 6 are connected in series and then connected in parallel with the main control module 5, and the controlled jack 2 is connected in parallel with the main control jack 1 and the current transformer 3 in series . When the TV is in the standby state, the controlled switch 6 is turned on, and the main control jack 1 and the controlled jack 2 will be powered off. The relationship between the master jack and the controlled jack: the master jack and the controlled jack are connected in parallel and are controlled by the controlled switch 6. The controlled jack can only accept the power-off command unconditionally, and the master jack is disconnected The electrical controlled jack must be powered off.

The second preferred example, as shown in Figure 2, on the basis of the preferred example one, a normally-connected jack 7 directly connected to the live wire and the neutral wire is added, and the normally-connected jack 7 is not connected to the main control module 5 and the affected The control of control switch 6 is convenient for plugging in electrical appliances that do not need to be powered off.

The main control module 5 includes a microprocessor 51, an operational amplifier circuit comprising a first sampling amplifying circuit 52 and a second sampling amplifying circuit 53, a TV receiving panel 54 and a delay controller etc. connected to the microprocessor; the second The output terminal of the first sampling amplifier circuit is connected with one input terminal of the microprocessor, the output terminal of the second sampling amplifier circuit is connected with the other input terminal of the microprocessor, and the input terminal of the first sampling amplifier circuit is connected with the current transformer . The PB0 input terminal of the microprocessor 51 is connected with the output terminal of the receiving panel, and the PB1 input terminal of the microprocessor is connected with an indicator light provided on the receiving panel. The first sampling and amplifying circuit 52 includes a sampling resistor and an operational amplifier, and the second sampling and amplifying circuit 53 is connected to the microprocessor through an isolation resistor connected in series. The transient surge suppression unit 4 includes two piezoresistors, one of which is installed between the live wire and the ground wire, and the other piezoresistor is installed between the neutral wire and the ground wire.

The current transformer 3 is used to obtain the current on the main control jack and control the controlled switch through the main control module. The current transformer 3 is connected to the main control jack branch and outputs an induced current, which is connected to the first sampling amplifier The input terminal of the circuit is collected by the sampling resistor and amplified by the operational amplifier and input to the microprocessor. After processing by the microprocessor, it can control the continued connection or disconnection of the controlled switch. When the controlled switch is disconnected, the microprocessor is turned on. The signal of the controlled switch is determined by the signal of the receiving panel.

The microprocessor is also connected with an indicator light installed on the housing of the row socket through its output interface, and the current working state of the row socket can be visually displayed by turning on and off the indicator light. In this example, the sampling resistor is a 100 ohm precision resistor with 1% precision, the operational amplifier uses LM358 chip, the microprocessor is AVR series ATMEGA8 single-chip microcomputer, and the current transformer is ZMCT103 series transformer (Nanjing Zeming Electronics Co., Ltd. ZMCT103C transformer).

The working mode of the receiving panel, there is a parameter value T, A in the program. The information received from the infrared remote control is converted into high and low levels. Timer1 calculates the time interval Tn of two falling edges and compares it with the parameter T. When Tn+A>T>Tn-A is satisfied, the row socket is turned on. Detecting standby work, by detecting the current of the main control to judge whether the main control enters the standby time, the current detection of the main control is judged by ADC sampling and then calculating the root mean square of the current. Now through the sampling frequency of 32k, every After extracting 32 samples, find out by the square root formula of Irms=((I1XI1+………+I32XI32)/32), when Irms＜1, just think that the main control has entered the standby time, and at this moment the single-chip machine is automatically shut down The main and controlled standby power consumption is all turned off by dropping the row socket so that the standby power consumption of the electrical equipment on the row socket can be reduced to zero. The single-chip microcomputer adopts 10-bit AD conversion, so the sub-sampling reference voltage is +5V, so the sampling resolution of the single-chip microcomputer is 5/1024, which is approximately equal to 5mV. According to the results of our test, the sampling accuracy of our scheme meets the requirements. The precision of power load cabinet is 0.1 grade. Test method, the output line of the power load cabinet passes through the precision current transformer of our prototype and returns to the input end of the power load cabinet, and then adjusts the following current values one by one, read the value after the standby current display is stable, and record the reading.

The main control module adopts a modular design. Through a current transformer and a sampling amplifier circuit, the induced current of the branch of the main control jack can be detected and transmitted to the microprocessor. The microprocessor controls the continuous connection or disconnection of the controlled switch. In this way, the on-off processing of the power supply of the main control jack and the controlled jack is realized, and the situation of standby power consumption is effectively eliminated. The power supply is plugged into the controlled jack, when the main control module detects that the TV and other equipment on the main control jack are off or in standby through the current transformer and the sampling amplifier circuit, after waiting for a delay time (such as 1 minute), Control the controlled switch through the delay controller to cut off the power on the master jack and the controlled jack, so that the TV, DVD player, function player and other power supplies on the master jack and the controlled jack are all disconnected, Thereby eliminating standby power consumption. By detecting the current on the main control jack, you can judge the working status connected to the main control jack. When it detects that the TV and other equipment on the main control jack are in the standby state for a period of time, the controlled switch will be automatically disconnected. , Cut off the TV, DVD player, function player and other equipment connected to the master jack and the controlled jack, effectively eliminating the standby energy consumption.

In order to illustrate the working process of the present invention more clearly, the working flow diagram shown in Figure 4; after initialization, whether to wake up the row of sockets? No, return, yes, turn on the socket to detect the current of the main control socket, use the sampling resistor to perform ADC sampling, and then judge whether the main control socket is in the standby state? No, return to the sampling resistor for ADC current sampling, if yes, cut off the circuit by the control switch.

The invention effectively suppresses power waste such as transients and surges in the power grid, improves the quality of power consumption, ensures the stable operation of equipment such as televisions, prolongs the service life of equipment such as televisions, and achieves the goal of ensuring the safety of equipment such as televisions. Double function of power saving and protection.

The present invention has been specifically described above in conjunction with preferred embodiments, but those skilled in the art can make various changes or changes to these embodiments, and these changes and changes should fall within the protection scope of the present invention.

Claims (7)

1. intelligent electricity-saving protective control plug socket for television; Comprise the plug socket housing, be arranged on jack on this plug socket housing and that can be connected with outside electrical equipment; This jack is connected with the outside power supply that comprises live wire, zero line and ground wire; It is characterized in that: said jack includes master control jack (1); Also be provided with the electricity-saving protection control circuit that is connected with this power supply, this electricity-saving protection control circuit comprises current transformer (3), transition surge restraining unit (4) and the main control module (5) between said live wire and zero line parallel with one another, and is parallelly connected with said main control module (5) again after said master control jack (1), current transformer (3) and a controlled switch (6) series connection;

Said jack also includes controlled jack (2), this controlled jack (2) and said master control jack (1) of connecting, current transformer (3) parallel connection;

Said main control module (5) comprises microprocessor (51), comprises the operational amplification circuit and the reception panel (54) that is connected with this microprocessor of the first sampling amplifying circuit (52) and the second sampling amplifying circuit (53); The output of the said first sampling amplifying circuit is connected with an input of said microprocessor; The output of the said second sampling amplifying circuit is connected with another input of said microprocessor, and the input of the said first sampling amplifying circuit is connected with said current transformer;

The said first sampling amplifying circuit (52) comprises sampling resistor and operational amplifier, and the said second sampling amplifying circuit (53) is connected with said microprocessor through series connection one isolation resistance.

2. intelligent electricity-saving protective control plug socket for television according to claim 1 is characterized in that: said sampling resistor is the precision resistance in 100 Europe, and what described operational amplifier adopted is the LM358 chip.

3. intelligent electricity-saving protective control plug socket for television according to claim 2; It is characterized in that: said transition surge restraining unit (4) also includes two piezo-resistances; The one of which piezo-resistance is installed between live wire and the ground wire, and another piezo-resistance is installed between zero line and the ground wire.

4. intelligent electricity-saving protective control plug socket for television according to claim 3 is characterized in that: said microprocessor (51) is the ATMEGA8 single-chip microcomputer of AVR series, and said current transformer (3) is a ZMCT103 series instrument transformer.

5. intelligent electricity-saving protective control plug socket for television according to claim 4; It is characterized in that: the PB0 input of said microprocessor (51) is connected with said reception panel output, and an indicator light that is provided with on the PB1 input of said microprocessor and the said reception panel is connected.

6. intelligent electricity-saving protective control plug socket for television according to claim 4 is characterized in that: said microprocessor (51) also through its output interface be installed in said plug socket housing on the indicator light that is provided be connected.

7. intelligent electricity-saving protective control plug socket for television; Comprise the plug socket housing, be arranged on jack on this plug socket housing and that can be connected with outside electrical equipment; This jack is connected with the outside power supply that comprises live wire, zero line and ground wire; It is characterized in that: said jack includes master control jack (1); Also be provided with the electricity-saving protection control circuit that is connected with this power supply, this electricity-saving protection control circuit comprises current transformer (3), transition surge restraining unit (4) and the main control module (5) between said live wire and zero line parallel with one another, and is parallelly connected with said main control module (5) again after said master control jack (1), current transformer (3) and a controlled switch (6) series connection;

Said jack also includes normal open jack (7), and this normal open jack (7) is connected in parallel between said live wire, the zero line;

Said main control module (5) comprises microprocessor (51), comprises the operational amplification circuit and the reception panel (54) that is connected with this microprocessor of the first sampling amplifying circuit (52) and the second sampling amplifying circuit (53); The output of the said first sampling amplifying circuit is connected with an input of said microprocessor; The output of the said second sampling amplifying circuit is connected with another input of said microprocessor, and the input of the said first sampling amplifying circuit is connected with said current transformer;

The said first sampling amplifying circuit (52) comprises sampling resistor and operational amplifier, and the said second sampling amplifying circuit (53) is connected with said microprocessor through series connection one isolation resistance.

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