CN102290684B - Time control socket - Google Patents

Abstract

The utility model provides a time control socket, includes the power input end for the socket power supply and locates the power output jack on the socket, its characterized in that: the socket is internally provided with a processing unit and a control circuit, the processing unit can generate corresponding control signals at set time, the power output jacks comprise at least one controlled jack, and the control circuit is electrically connected with the controlled jack and controls a loop where the controlled jack is located according to the control signals sent by the processing unit, so that the controlled jack is indirectly switched on or switched off when the power is set. The control circuit of the invention controls the controlled jack to switch on or off the power supply when set according to the control signal sent by the processing unit, can indirectly control the working state of the household appliance or office equipment electrically connected with the controlled jack, is convenient to use and is beneficial to energy conservation. The circuit structure of the electrical appliances or equipment can be simplified, a timing control module does not need to be arranged on each electrical appliance or equipment, and the cost of the electrical appliances or equipment can be greatly reduced.

Description

A time control socket

Technical field:

The invention relates to a time control socket.

Background technique:

Existing sockets generally include several power output jacks arranged on the socket and power input terminals for supplying power to the socket, through which various household appliances or office equipment can be powered. But there is following defect in this socket: 1, can not automatically control the conduction or disconnection time of the circuit where the power output jack is located, to indirectly control the working state of the household appliances or office equipment electrically connected with the power output jack, it is inconvenient to use, Conducive to energy saving. 2. It does not have the function of lightning protection. In thunderstorm seasons or when the voltage is abnormal, it cannot prevent damage to electrical appliances from harmful surges and voltage fluctuations caused by lightning strikes or excessive voltage, and there are potential safety hazards.

Invention content:

The object of the present invention is to provide a time-controlled socket, which can automatically control the circuit where the power output jack is located to turn on or off the power supply at a set time.

A time-controlled socket, including a power input terminal for supplying power to the socket and a power output jack provided on the socket, characterized in that: the socket is provided with a processing unit and a control circuit, and the processing unit can generate The corresponding control signal, the power output jack includes at least one controlled jack, the control circuit is electrically connected to the controlled jack and controls the circuit where the controlled jack is located according to the control signal sent by the processing unit, so that the controlled jack is in the Turn on or off the power at the set time.

The time control socket of the present invention has the following advantages: 1. The control circuit controls the circuit where the controlled socket is located to turn on or off the power supply at the set time according to the control signal sent by the processing unit, and can indirectly control the socket connected to the controlled socket. Electrically connected household appliances or office equipment are in working condition, easy to use and conducive to energy saving. 2. It can also simplify the circuit structure of electrical appliances or equipment, and it is not necessary to set a timing control module on each electrical appliance or equipment, which can greatly reduce the cost of electrical appliances or equipment.

The control circuit includes an electromagnetic relay, the normally open contact of the electromagnetic relay is connected in series with the circuit where the controlled jack is located, the structure is simple, and the control is convenient.

The output end of the processing unit is also connected with a power failure prompt alarm circuit with a loudspeaker. The controlled jack is 5 minutes before the power failure, and the alarm circuit can send out a prompt sound. power off.

The input end of the processing unit is also connected to a setting button and a rotatable safety lock, and the output end of the processing unit is connected to a display screen. By setting the button, the processing unit can be set to control the circuit where the controlled jack is located to turn on or off the power supply. A total of 6 control periods can be set; in addition, when the safety lock is turned, the processing unit can be set in a write-protected state. At this time, the setting button does not work, which can prevent misoperation or loss of set data when children are playing. .

A switching power supply is connected in parallel between the power supply input end and the processing unit and the control circuit, and the switching power supply supplies power for the processing unit and the control circuit.

It also includes a backup power supply, which supplies power to the processing unit, and the backup power supply can last for more than 15 hours, and the set data will not be lost even in a power failure.

A lightning protection module is connected in parallel between the power input end and the switching power supply, and the lightning protection module includes a piezoresistor and a high-voltage gas discharge tube arranged at the power input end. When lightning strikes or the voltage is too high, the piezoresistor in the lightning protection module can make its resistance smaller as the voltage increases and form a path with the neutral line; similarly, the high-voltage gas discharge tube can also The high-voltage state is turned on, forming two protective lines of defense, thereby effectively preventing damage to electrical appliances caused by lightning strikes or excessive voltage surges and voltage fluctuations, and protecting the safe use of electrical appliances.

An overload protector is connected in series between the input terminal of the power supply and the varistor, a power switch is connected in series between the varistor and the high-voltage gas discharge tube, and a fuse is connected in series between the high-voltage gas discharge tube and the switching power supply. When the load power is greater than the rated power or the load is short-circuited, the overload protector will automatically disconnect. After the load is normal, press the overload protector again, and the socket can work normally again; When the temperature is high, the circuit is disconnected to protect the safety of each component of the circuit, forming a double protection with the overload protector.

The power output jack also includes a normally-connected jack, the normally-connected jack is arranged in parallel between the lightning protection module and the switching power supply, and a USB power supply circuit is also provided between the lightning protection module and the switching power supply, Provide USB charging jack, can charge MP3, MP4, PDA, PSP, mobile phone, etc.

Description of drawings:

Fig. 1 is a schematic diagram of the structure of the present invention.

Fig. 2 is a schematic diagram of the second structure of the present invention.

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

Fig. 4 is a circuit structure diagram of the present invention.

FIG. 5 is a circuit structure diagram of the connection between the processing unit of the present invention and the circuit in FIG. 4 and the display screen.

Detailed ways:

As shown in Figures 1 to 5, a time-controlled socket includes a power input terminal 12 for supplying power to the socket 1 and a power output jack 11 provided on the socket. The power output jack 11 includes three parallel controlled sockets. Hole 111, the socket 1 is provided with a processing unit 2 and a control circuit 3, the processing unit 2 can generate a corresponding control signal at a set time, the processing unit 2 is electrically connected to the controlled jack 111 through the control circuit 3 to simultaneously control the three The circuit where each controlled jack 111 is located is connected to or disconnected from the power supply at the set time. The control circuit 3 includes an electromagnetic relay, the normally open contact of which is connected in series to the circuit where the controlled jack 111 is located; the output end of the processing unit 2 is also connected to a power-off warning circuit 4 with a speaker. The input end of the processing unit 2 is also connected with a setting button 5 and a rotatable safety lock 6, the output end of the processing unit 2 is connected with a display screen 7, and the setting button 5 includes a MODE key, a SET key, an HOUR key and a MIN key, A total of 6 control periods for turning on and off the power supply can be set. A switching power supply is connected in parallel between the power input terminal 12 and the processing unit 2 and the control circuit 3 , and the switching power supply supplies power to the processing unit 2 and the control circuit 3 . A backup power supply 8 is also included, which also supplies power to the processing unit 2 . A lightning protection module 9 is connected in parallel between the power input end 12 and the switching power supply, and the lightning protection module 9 includes a piezoresistor and a high-voltage gas discharge tube arranged at the power input end. An overload protector 10 is connected in series between the power input terminal 12 and the varistor, a power switch is connected in series between the varistor and the high-voltage gas discharge tube, and a fuse is connected in series between the high-voltage gas discharge tube and the switching power supply. The power output jack 11 also includes a normally connected jack 112, the normally connected jack 112 is arranged in parallel between the lightning protection module 9 and the switching power supply, and between the lightning protection module and the switching power supply is also provided with The USB power supply circuit provides a USB charging jack.

The bottom of the time control socket 1 is provided with a push-pull hanging plate 01 at its left end and right end, and a hanging hole is opened on the push-pull hanging plate 01 . When the socket needs to be fixed or suspended, the hanging plate can be pulled out for use, and the hanging plate can be pushed in when not in use, which is convenient and applicable.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the implementation scope of the present invention. All equivalent changes and modifications made according to the scope of the patent of the present invention fall within the scope covered by the patent of the present invention.

Claims (8)

1. a time is controlled socket, be included as the power input of socket power supply and be located at power supply output plughole on the socket, be provided with processing unit and control circuit in the described socket, processing unit can produce corresponding control signal in the time of setting, described power supply output plughole comprises at least one controlled jack, control circuit is electrically connected with controlled jack and controls loop, controlled jack place according to the control signal that processing unit sends, make controlled jack be switched on or switched off power supply in the time of setting, it is characterized in that: the input of described processing unit also be connected with in order to the time that described setting is set button and a rotatable safety lock be set, the output of processing unit is connected with display screen; When rotating safety lock, processing unit can be located at the write-protect state, it is inoperative when processing unit is located at the write-protect state button to be set.

2. a kind of time according to claim 1 is controlled socket, and it is characterized in that: described control circuit comprises electromagnetic relay, and the normally opened contact of this electromagnetic relay is serially connected with loop, controlled jack place.

3. according to each described a kind of time control socket of claim 1-2, it is characterized in that: the output of described processing unit also is connected with the outage prompting warning circuit of band loud speaker.

4. a kind of time according to claim 3 is controlled socket, it is characterized in that: be parallel with Switching Power Supply between described power input and processing unit and the control circuit, this Switching Power Supply is processing unit and control circuit power supply.

5. a kind of time according to claim 4 is controlled socket, it is characterized in that: also comprise a stand-by power supply, this stand-by power supply is the processing unit power supply.

6. a kind of time according to claim 5 is controlled socket; it is characterized in that: the lightning protection module that is provided with in parallel also between described power input and the Switching Power Supply, this lightning protection module comprises and is located at piezo-resistance and the high-pressure discharge pipe of power input.

7. a kind of time according to claim 6 is controlled socket; it is characterized in that: string has overload protective device between described power input and the piezo-resistance; string has a mains switch between piezo-resistance and the high-pressure discharge pipe, is in series with a fuse between high-pressure discharge pipe and the Switching Power Supply.

8. a kind of time according to claim 7 is controlled socket; it is characterized in that: described power supply output plughole also comprises a normal open jack; the parallel connection of normal open jack is located between lightning protection module and the Switching Power Supply; also and be provided with the USB power supply circuits, provide USB charging jack between described lightning protection module and the Switching Power Supply.

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