CN2052969U

CN2052969U - Combined socket

Info

Publication number: CN2052969U
Application number: CN 88220535
Authority: CN
Inventors: 席兴法
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-12-23
Filing date: 1988-12-23
Publication date: 1990-02-14

Abstract

The utility model relates to a combined socket with multiple purposes, which comprises an alternating current-direct current voltmeter, the selecting rotary knob of a direct current voltage, a timing selecting rotary knob, a voltage adjustable selecting rotary knob, a direct current voltage socket for providing the voltages with 3, 4, 5, 6, 9 and 12v, and a socket for providing an adjustable voltage with the alternate current. The combined socket has the advantages of wide use application and can be especially suitable for special electric occasions such as laboratories, the exhibition stands of exhibitions, etc.

Description

Combined socket

The utility model has related to a kind of improved appliance socket.

The socket of selling on the present market, its common feature is, on a socket, several current tap sockets are housed, make the 220V AC power flow to each load by these current tap sockets, the shortcoming of this class socket is, can not satisfy the needs that power supply had the various electric appliance loads of specific (special) requirements simultaneously, as laboratory, exhibition exhibition booth etc.In this case, a lot of additional appliance devices have usually been increased, as voltage regulator, rectifier etc.As a result, must increase the occupied area of work-yard, the wrong circuit very easily appears in the wiring complexity and the system of leading is damaged electric equipment.To this, many people have done a lot of improvement, are exactly an example as the multiple function socket of Chinese patent (CN87213702).This multi-function jack, although it can provide the 6V power supply, alternating current 220V power supply and electric fan fitful wind control power supply can't satisfy as the laboratory, occasions such as exhibition exhibition booth need multiple DC power supply simultaneously, regularly, exchange adjustable special electricity consumption requirement.

The purpose of this utility model discloses a kind of being equipped with exactly can provide 5 retaining direct voltage accessory power outlets, adjustable AC voltage socket is provided, provide the multipurpose plate connector of the socket of regularly connection and powered-down, to satisfy as the laboratory requirement of the special electricity consumptions of occasion such as exhibition exhibition booth.

The purpose of this utility model is to reach by following technical scheme.On the panel of plate connector, remove and mains switch (1) is housed, fuse (2), D.C. voltmeter (5).A.C. voltmeter (4), light-emitting diode (3), (9), (10), direct voltage is selected knob (7), regularly select knob (12), AC voltage adjusting knob (14) is outside the socket (13) (15) etc., direct voltage accessory power outlet (6) (8) also is housed, exchange adjustable voltage socket (CA4), regularly the timing socket (CA2, CA3) and the 220V AC Power supply socket (CA1) of connection and shut-off circuit.In the housing of plate connector, ac rectifier is housed, AC voltage adjusting control circuit, timing control circuit.By these circuit and corresponding socket, can provide 3,4.5,6,9 on demand respectively to load, 12V five retaining direct voltages, exchange adjustable voltage, Timing power supply serves many purposes this socket.DC power supply can select knob (7) (3.4.5.6.9.12V) in five retainings are inferior to choose at random by direct voltage.Regularly the timing of connection and shut-off circuit can choose at random in three retainings time (I, II, III) by regularly selecting knob (12).Be added with under the situation of load, exchanging regulated power supply can select by AC voltage adjusting knob (14).

Fig. 1 is the outline drawing of plate connector.

Fig. 2 is the circuit theory diagrams of plate connector.

The utility model will be further described below in conjunction with the circuit theory diagrams of this plate connector:

Enforcement of the present utility model is with voltage regulator control circuit, and timing control circuit, rectification circuit etc. are printed on the printed circuit board, then, on printed circuit board (PCB), welds each device or element.At last it is installed on each knob, switch etc. are installed in the housing again.

Voltage regulator control circuit is at the T2 of bidirectional triode thyristor TLC termination one potentiometer W1, the end of the other end connecting resistance R2 of potentiometer W1, another termination capacitor C 1 and the bidirectional trigger diode ST of resistance R 2, another termination of bidirectional trigger diode ST TLC control utmost point g, the end of the other end of capacitor C1 and bidirectional triode thyristor T1 joins.Resistance R 3 connects with capacitor C2.In parallel with bidirectional triode thyristor TLC then.Bidirectional triode thyristor TLC can be fixed on the little aluminium sheet, in order to heat radiation when mounted.Adjustable AC voltage socket CA4 is connected between T2 and the power firestreak.When positive half cycle, when the voltage of capacitor C1 end surpassed the breakover voltage of bidirectional trigger diode ST, capacitor C1 was through bidirectional trigger diode ST, bidirectional triode thyristor g and T1 discharge, bidirectional triode thyristor conducting.When negative half period, C1 is through T1, g, ST discharge, and bidirectional triode thyristor is conducting also.When changing the resistance of potentiometer W1, can change the conducting pin of TLC, thereby just can provide adjustable voltage to load by socket (CA2).

Timing control circuit, (IC) comes Control work by 555 time-base circuits.2,4 pin of 555 time-base circuit IC meet button N(11), 8 pin connect DC power supply, 3 pin sending and receiving optical diode LED2(Huangs), the end of resistance R 6 and relay coil J.The other end of resistance R 6 and LED 3(are green) anode join, LED 3(is green) negative electrode is connected with the other end of relay coil J.LED 2(Huang) anode links to each other with resistance R 5, and the other end and the DC power supply of resistance R 5 are joined.6.7 pin of the end of capacitor C5 and potentiometer W2 and 555 time-base circuit IC join.The other end of potentiometer W2 and resistance R 4 are joined, and the other end and the DC power supply of resistance R 4 are joined.When energized, LED(is red) bright, electric 3 pin of base were low level in 555 o'clock, timing circuit is not worked.When pressing the button N, 3 pin are high level, and relay coil J has electric current to pass through, relay normally open contact J1-2 adhesive, LED2(Huang) extinguish, LED3(is green) promptly bright, socket CA3 has output voltage.Meanwhile, normally-closed contact J1-1 disconnects, and socket CA2 does not have voltage output, and through certain time of delay, 3 pin of 555 time-base circuits recover low level again, and relay J discharges, and socket CA3 does not have voltage output, and socket CA2 has voltage output.According to formula t=1.1CR,, can obtain the length of required timing by changing the value of potentiometer W2 and C5.

Dc output circuit is to utilize transformer to pay the limit five plugs, obtains five different AC low-tensions, through bridge heap CZ1 rectification, again by capacitor C3, filtering obtains 3,4.5,6,9, the VD of 12V five retainings, by socket, offers load then.

The utility model has the advantages that: (1) can provide the multiple voltage power supply by a plate connector, and to satisfy the laboratory, the occasions such as exhibition stand exhibition booth have the load electricity consumption requirement of specific (special) requirements to power supply; (2) can be used for the electricity consumption occasion of the specific (special) requirements such as light modulation, temperature adjustment, speed governing; (3) the electricity consumption requirement of suitable minicom; (4) element is not had specific (special) requirements, market is all available, and cost is low, and the scope of application is wide.

Claims

1, a kind of plate connector, select knob, direct voltage to select knob, light-emitting diode, direct current and A.C. voltmeter, voltage regulator control circuit, timing circuit, ac rectifier and several sockets to be formed by mains switch, adjusting pressuring knob, timing, it is characterized in that:

A. described voltage regulator control circuit is by bidirectional triode thyristor TLC, potentiometer W1, and resistance R 2, R3, capacitor C 1, C2, and bidirectional trigger diode ST forms; Wherein resistance R 2, R3 and capacitor C 2, C3, potentiometer W1 and bidirectional triode thyristor TLC also connect; The output of this circuit through adjusting pressuring knob with exchange the adjustable voltage socket and join;

B. described timing circuit is made up of 555 time-base circuits, button, two light-emitting diodes, relay J, resistance R 4～R6, potentiometer W2 and capacitor C 5; Wherein resistance R 5, R6, two light-emitting diodes connect, resistance R 4, potentiometer W2, capacitor C5 connect, and relay J and resistance R 6, LED 3 also connect; The output of this circuit joins with the socket of regularly connecting, regularly close.

C. described dc output circuit is that capacitor C3 forms by D.C. voltmeter, transformer, bridge heap rectifier CZ1; Bridge heap rectifier CZ1 is connected the limit of paying of transformer; Five inferior direct currents of retaining are 5 taps acquisitions of paying the limit from transformer; The output of this circuit and direct current output selector switch, the direct current accessory power outlet joins.