CN201243134Y - Single-phase intelligent power switch/socket case - Google Patents

Abstract

Single-phase intelligent power switch/socket box belongs to electrical appliance category. It is mainly composed of a box body, a panel and a circuit board in the box body. It is characterized in that the panel of the box body is equipped with a start button switch, a control button switch, a work indicator light, a night vision light, five kinds of delay state display lights and an AC Output jack; the box body is provided with a circuit board, and the circuit board is welded with an AC transformer step-down rectification circuit, a DC5V, DC12V direct current voltage output circuit and a time control integrated circuit. The utility model can be directly replaced with the general-purpose 86-character in-wall socket without additional wiring. It is equipped with key-type no-memory starting and voltage loss and over-current protection circuits. It needs to be manually started every time it works, and it is also equipped with Five adjustable segmental delay circuits provide five delay functions of 30, 90, 180, 270, and 360 minutes, and there are corresponding display lights, and the power supply will be automatically cut off when the time comes, so the utility model can be safe and energy-saving provide AC power.

Description

Single Phase Smart Power Switch/Socket Box

[Technical Field] The utility model relates to a power switch/socket box, specifically a single-phase intelligent power switch/socket box, belonging to electrical appliances.

[Background Art] Today, with the increasing popularity of electricity, various residences, office buildings, and factories are equipped with multiple fixed or mobile power switches or socket boxes to facilitate users to use various electrical appliances. The power switches or socket boxes commonly used at present generally have the defects of simple structure and single function, which can no longer keep up with the needs of people's electricity consumption. Widely used electricity customers urgently need a power switch with multiple functions, safety and status display. / socket box.

[Content of the invention] In order to overcome the above-mentioned defects of the existing power switch socket box, the utility model provides a single-phase intelligent power switch/socket box to meet the needs of the majority of electricity customers to the greatest extent.

In order to solve its technical problems, the technical solution adopted by the utility model is: design a power switch/socket box including a box body, a panel and a control circuit board, and its characteristics are: ① There is an AC power output on the box body panel Jack, start button SW ₁ , control button SW ₂ , work indicator LED6, night vision light ZD and delay state display lights LED1-5; there is a control circuit board in the box body, and the circuit board is welded with AC input terminals L, N and AC output terminals OUT, N, AC transformer and AC rectifier circuit, working indicator light, night vision lamp and DC5V, DC12V DC voltage stabilizing circuit, among which there are starting switch SW ₁ and transformer primary in series between the AC input terminals A starting circuit composed of: a relay J ₁ is connected in parallel between the positive and negative poles of the DC12V DC power supply, and a time-controlled integrated circuit chip IC is also provided on the circuit board in the box body, and the power supply terminal of the time-controlled integrated circuit chip is connected to the DC5V power supply , an output terminal of the time-controlled integrated circuit is connected to the control pole of the transistor BG1 after passing through the resistor _R3 , the emitter of the transistor _BG1 is connected to the negative pole of the power supply, and the collector is connected to the DC12V power supply after passing through the relay _J2 connected in series. The ground terminal and an input terminal of the time control integrated circuit are connected in parallel to the two ends of the control button SW ₂ , and the five delay state display output terminals of the time control integrated circuit are respectively connected to the five LED light-emitting diodes on the panel after passing through the resistor R . ②The AC output terminal OUT, on the one hand, is connected to the live wire jack of the output power supply on the panel after passing through the serially connected fuse and the normally open contact KJ ₂ of the relay J ₂ , and the neutral wire jack of the output power supply is connected through a wire To the neutral line N of the input AC terminal; on the other hand, the OUT output terminal is connected to the primary live line end of the transformer through the series-connected relay J ₁ normally open contact KJ ₁ , and the primary neutral line end of the transformer is connected to the zero line terminal of the AC input. ③The AC transformation _and rectification circuit is composed of EI ₂₈ 100ma transformer and IN4007× ₄ rectifier bridge. The piezoresistor _R4 , the regulator tube _DW2 and the filter capacitor _C2 output a DC5V DC power supply. ④ The time control integrated circuit chip IC set on the circuit board is SN8P2501 type; the night vision light circuit on the circuit board is composed of a switch K and a series indicator light ZD, which is connected between the AC output fire coin and the zero line terminal. A lightning protection circuit composed of varistors is welded between the AC input terminals. 5. There is an indicator circuit connected in series by resistor R ₂ and light-emitting diode LED ₆ in parallel at both ends of the DC12V DC power supply.

The working process is: 1. Connect to AC220 power supply. 2. Press the start button SW ₁ , turn on the AC220 power supply, and the transformer rectifier circuit starts to work, providing DC12V and DC5V voltages respectively for the relay J ₁ and IC to work; when the IC works, it controls the triode BG ₁ to work, and turns on the DC12V electromagnetic The coil pulls in to make the relay J ₂ work, and connects to the AC live wire L to output through the OUT terminal. After the relay works, the power supply of the transformer rectifier circuit is supplied by the bypass output of KJ ₁ , the whole circuit works stably, the power indicator LED is on, and the start button is released at this time.

3. Press the adjusting switch SW ₂ to adjust the timing time. There are five predetermined power supply times of 30, 90, 180, 270 and 360 minutes, which can be cyclically adjusted. The countdown starts and the LED lights of each segment will be turned off within the set time. Press and hold the adjustment button for 3 seconds to turn off the power.

The beneficial effects of the utility model are: 1. The appearance design of the utility model conforms to the national general 86 type, mobile type and non-standard product standards, and can be directly exchanged with the general 86 type wall-mounted power switch/socket box without the need of In addition, it is wired, so it has good versatility and interchangeability, and is convenient for popularization and application. 2. The internal circuit board of this utility model is designed with key-triggered memoryless start and voltage loss protection functions. It needs to be started manually every time it works, and it will automatically shut down within the set time, so as to avoid sudden power failure due to external lines, and When the power supply is automatically restored, the equipment will waste electric energy or even cause a fire accident, which not only saves electric energy but also ensures safe use of electricity. 3. The circuit board of the utility model is equipped with an adjustable segmental delay and a long-press off mode circuit. Press the adjustment button switch SW2 to realize five-stage delay work and display status: that is, press once to delay for 30 minutes, and LED ₁ lights up. Press twice to delay 90 minutes, LED ₂ is on, press three times to delay 180 minutes, LED ₃ is on, press four times to delay 270 minutes, LED ₄ is on, press five times to delay 360 minutes, LED ₅ is on, press the adjustment button Switch SW ₂ and turn off the power output after more than 3 seconds. 4. The AC input terminal L of the utility model is connected in series with overcurrent fuses FUSE of various specifications ranging from 0.5 to 10A, which can automatically cut off the input power supply to protect the safety of the electrical appliance when the electrical appliance is overcurrent. 5. The utility model is equipped with a 1W power night vision light. The light is also equipped with a switch K. When it is necessary to illuminate at night, close the switch, and the night vision light emits a weak light of 1W, which is convenient for users to illuminate and saves electricity. . 6. Since the SN8P2501 time-controlled integrated circuit used on the circuit board of the utility model has an overvoltage protection function, when the external line voltage or the supplied DC voltage is too high, the output terminal of the time-controlled integrated circuit will output a low level , turn off the triode BG1, and release the relay J, and the normally open trigger point J _1-1 of J is disconnected. In addition, a lightning protection circuit composed of piezoresistors is connected in parallel at the AC input terminal. Automatically short-circuit the input terminals to protect the safety of the connected electrical appliances.

[Description of Drawings] The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is a schematic top view of the panel structure of the present invention.

Fig. 2 is the electrical schematic diagram of the utility model.

In the figure: 1 box body; 2 indicator light; 3 panel; 4 night vision light; 5 delay state display light; 6 adjustment button SW ₂ ; 7 start button SW ₁ ; 8 installation hole; Live wire jack; 11 night vision light switch K.

[Specific implementation] With reference to the accompanying drawings: on the front of the box body 1 of the power switch/socket box, a panel 3 is provided, on which a working indicator light 2, a night vision light 4, and five LEDs _{1 to 5} are arranged. Time status display lamp 5, adjustment button switch 6, start button switch 7, two mounting holes 8, night vision light switch 11 and the output power socket composed of zero line jack 9, output live wire jack 10 and ground wire, in On the circuit board inside the box, there are AC input live wire terminal L and neutral wire terminal N. One end of a 0.5-10A overcurrent fuse FUSE is connected in series in the live wire output terminal OUT, and the other end of the overcurrent fuse is respectively It is connected to the normally open contacts of relays KJ ₁ and KJ ₂ , and the other contact of KJ ₁ is connected to the primary live wire end of the EL28 100MA AC transformer, and the neutral wire of the transformer safety level is connected to the neutral wire of the AC input terminal. The other end of KJ ₂ is connected to the live wire of the AC input, and the night vision lamp circuit connected in series by the switch 11 and the indicator light 4 of 1W and the lightning protection of the piezoresistor _R1 are connected in parallel between the live wires L and N of the AC input circuit, a SW ₁ start button 7 is connected in series between the AC input live wire terminal L and the primary fire stage of the E128 transformer. The transformer secondary is connected with a rectifier circuit composed of an IN4007×4 rectifier bridge. A DC12V DC power supply circuit composed of a Zener diode DW ₁ and a filter capacitor C ₁ ; a DC5V DC output power supply composed of a resistor R ₄ , a Zener diode DW ₂ and a filter capacitor C ₂ is connected to the output end of the DC12V DC power supply circuit; Between the positive and negative poles of the DC12V power supply, there is a night vision light circuit composed of resistor R2 and LED6 indicator light 2 in parallel. On the circuit board, an IC time-controlled integrated circuit chip of type SN8P2501, a transistor BG ₁ , and the integrated circuit are welded. The power supply terminal is connected to the DC5V DC power supply output terminal, and its input terminal and ground terminal are connected in parallel to the two ends of the SW2 adjustment button 6, and one output terminal of the integrated circuit is connected to the control pole of the triode BG ₁ after being connected in series with the resistor _R3 , the emitter of the triode is connected to the negative pole of the power supply, the collector of the triode BG ₁ is connected to the negative terminal of the electromagnetic coil of the relay J2, and the positive terminal of the electromagnetic coil of the relay J2 is connected to the DC12V direct current power supply. The five output terminals of the time-controlled integrated circuit chip IC are respectively connected to the delay state display lamp 5, which includes a 30-minute delay display circuit composed of a resistor R ₅ and a light-emitting diode LED ₁ ; a resistor R ₆ that emits light Diode LED ₂ , a 90-minute delay display circuit composed of; resistor R ₇ , a light-emitting diode LED ₃ , a 180-minute delay display circuit; resistor R ₈ , a 270-minute delay display circuit composed of light-emitting diode LED ₄ and resistor R _9. A 360-minute delay display circuit composed of light-emitting diodes LED ₅ .

Claims (5)

1, a kind of single-phase intelligent mains switch/socket box comprises box body, panel, it is characterized in that: be provided with AC power output plughole, starting button SW on the box body panel ₁, regulation and control button SW ₂, relay indicating light LED6, night lamp ZD and time-delay state display lamp LED1-5; In box body, be provided with control circuit board, be welded with the sub-OUT of AC input terminal L, N and ac output end, N on this circuit board, AC transformer and ac rectifier, relay indicating light, night lamp and DC5V, DC12V direct current regulation circuit wherein are in series with between the AC input terminal by starting switch SW ₁Starting circuit with the primary composition; Between the both positive and negative polarity of DC12V DC power supply, be parallel with relay J ₁, also be provided with time control integrated circuit die I C on the circuit board in box body, the power supply termination DC5V power supply of this time control integrated circuit chip, an output of time control integrated circuit is through resistance R ₃After be connected to the control utmost point of transistor BG1, this triode BG ₁Emitter connect power cathode, collector electrode through the serial connection relay J ₂The back is connected with the DC12V power supply, and the earth terminal of time control integrated circuit and an input are connected in parallel on regulation and control button SW ₂Two ends, five time-delay states of time control integrated circuit show that outputs are respectively through being connected with five LED light-emitting diodes on the panel after the resistance R.

2, single-phase intelligent mains switch/socket box according to claim 1 is characterized in that: the sub-OUT of described ac output end, fuse and the relay J through being connected in series on the one hand ₂Normally opened contact KJ ₂After be connected on the firewire jack of out-put supply on the panel, the zero line jack of out-put supply is connected on the zero line N of input AC terminal by lead; The OUT lead-out terminal is the relay J through being connected in series on the other hand ₁Normally opened contact KJ ₁The back is connected with the live wire end of primary, and the zero line side of primary is connected with the zero line that exchanges input;

3, single-phase intelligent mains switch/socket box according to claim 1 and 2 is characterized in that: described AC transformation rectification circuit is by EI ₂₈The rectifier bridge of the transformer of 100ma and IN4007 * 4 is formed, and its output is through voltage stabilizing didoe DW ₁With filtered electrical C ₁Back output DC12V DC power supply is again through dropping resistor R ₄With voltage-stabiliser tube DW ₂With filter capacitor C ₂Back output DC5V DC power supply.

4, single-phase intelligent mains switch/socket box according to claim 1 is characterized in that: time control integrated circuit die I C set on the circuit board is the SN8P2501 type; The night lamp electric routing switch K on the circuit board and the indicator light ZD of series connection form, and are connected to exchange between fiery money of output and the zero terminal, are welded with the lightning-arrest circuit that hits that piezo-resistance is formed between AC input terminal.

5, single-phase intelligent mains switch/socket box according to claim 3 is characterized in that: be parallel with by resistance R at DC12V DC power supply two ends ₂And LED ₆Serial connection make indicator light circuit.

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