CN2645337Y

CN2645337Y - Power supply converter

Info

Publication number: CN2645337Y
Application number: CN 03231680
Authority: CN
Inventors: 唐建北; 孟敬惠
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-06-02
Filing date: 2003-06-02
Publication date: 2004-09-29
Anticipated expiration: 2013-06-02

Abstract

The utility model relates to a power supply converter and is characterized in that a pluggable socket is used to be connected with an A.C. power supply. The inside of the socket shell is provided with a transformer and a relay. A pair of input socket power conduction sheet and a pair of output ports are arranged on the socket shell, which are connected with the transformer and the relay via lead; one of the port power conduction sheets is in short-circuit connection with a plug power conduction sheet; the input end of the transformer is connected with A.C. power supply via a pair of input plugs and the output end of the transformer outputs a D.C power supply; a stationary contact of a pair of contacts of the relay is connected with an input plug, a constant closed contact is connected with a power conduction reed of another port of a pair of output ports; another pair of control coil contact of the relay are connected with the D.C. power supply outputted by the transformer. The utility model can not only transform the A.C power to the D.C power output, but also can adopt a relay to control the output of the A.C. power via the D.C power and realize the control of the apparatus being used, which has a plurality of functions.

Description

Power supply changeover device

Technical field

The utility model relates to a kind of power supply changeover device.

Background technology

Along with development of science and technology, make the occasion of electrical appliance more and more, because the working range difference of various electrical equipment, therefore bring the requirement of using power supply also different, provide different out-put supplies so need help be implemented on the same input power supply, to meet the power requirement that makes electrical appliance with power supply changeover device.Existing power supply changeover device can only be realized the conversion of voltage, power supply, function singleness.

Summary of the invention

The utility model is in order to overcome the shortcoming of existing power supply transducer, and a kind of novel power supply changeover device that proposes, this power supply changeover device also has the effect that may command is used the electrical equipment of this out-put supply except power source voltage can being changed, possess multiple function.

The technical measures that the utility model adopts are: power supply changeover device, be characterized in, comprise that one is used to connect the pluggable socket of AC power, in the housing of this socket, be provided with a transformer and a relay, on the housing of this socket, be provided with a pair of input plug conducting strip and a pair of output socket, this is to respectively being respectively equipped with a conducting strip in the output socket, the conducting strip of described a pair of input plug conducting strip and a pair of output socket is electrically connected with transformer and relay by lead; Wherein: have the conducting strip of a socket to be connected in a pair of output socket with plug conducting sheet short circuit in a pair of input plug; The input of described transformer connects AC power by a pair of input plug, and the output of transformer is exported a direct current power supply; Fixed contact in the pair of contact of described relay is connected with an input plug, and the conductive reed of another socket in a normally-closed contact and a pair of output socket is connected; Another of relay connects the DC power supply of transformer output to the control coil contact.

Above-mentioned power supply changeover device wherein, also comprises a control switch, and this control switch is serially connected in the output of a contact of the control coil of relay.

Because the utility model has adopted above technical scheme, can as required alternating current be become the output of dc low-voltage electricity, also can adopt the output of relay, and realize making the control of electrical appliance by direct current control alternating current.

Description of drawings

Concrete structure of the present utility model is further provided by following embodiment and accompanying drawing thereof.

Fig. 1 is a structural representation of the present utility model.

Embodiment

See also Fig. 1.

The utility model power supply changeover device comprises a Socket casing 1, and 1 is provided with a pair of input plug 11 conducting strips and a pair of output socket 12 on this Socket casing, and this is to respectively being respectively equipped with a conducting strip in the output socket.Be provided with transformer 2 and this relay 3 in the Socket casing, transformer 2 and this relay 3 are electrically connected with the conducting strip of a pair of input plug 11 and a pair of output socket 12.There is the conducting strip of a socket to be connected in this a pair of output socket 12 with plug conducting sheet short circuit in a pair of input plug 11.The input of transformer 2 connects the 220V power supply by input plug 11, and the output of transformer 2 is exported a direct current power supply; Fixed contact 31b in the pair of contact of described relay 3 is connected with a plug conducting sheet in the input plug 11, and a normally-closed contact 31a is connected with the conducting strip of another socket of output socket; In the contact of another of relay 3 to control coil, an one contact 32a connects the DC power supply of transformer output, and another contact 32b connects the electric component that other uses described DC power supply.This power supply changeover device also comprises a control switch 4, and this control switch is serially connected in the output of a contact of the control coil of relay, and when when making electrical appliance be connected to form the loop, the work that makes electrical appliance in order to control whether.

The utility model realizes that control makes the operation principle of electrical appliance be:

Socket is inserted ac power plug, and alternating current (to call forceful electric power in the following text) is input to the input plug of socket, by A, B lead, in the alternating current input transformer.Through the transformer transformation, with D, C output DC (to call light current in the following text), at this moment the light current electrical appliance just can be worked;

Light current is connected the control power end that enters relay by the D line with the K line, the H line link to each other with light current C line by control switch again and enter relay another control power end, if relay is a normally closed type, at this moment, what the forceful electric power output plughole was exported is exactly forceful electric power, if close switch, jack does not have electricity output, by control light current switch, implement control like this to forceful electric power output.

In real life, tend to need finish the supply task of forceful electric power and light current simultaneously, and realize control that forceful electric power is opened or closed with the switch of light current with a power supply, do both simple and directly like this, safety avoids the operator to contact with the direct of forceful electric power again.

Claims

1, power supply changeover device, it is characterized in that, comprise that one is used to connect the pluggable socket of AC power, in the housing of this socket, be provided with a transformer and a relay, on the housing of this socket, be provided with a pair of input plug conducting strip and a pair of output socket, this is to respectively being respectively equipped with a conducting strip in the output socket, the conducting strip of described a pair of input plug conducting strip and a pair of output socket is electrically connected with transformer and relay by lead; Wherein: have the conducting strip of a socket to be connected in a pair of output socket with plug conducting sheet short circuit in a pair of input plug; The input of described transformer connects AC power by a pair of input plug, and the output of transformer is exported a direct current power supply; Fixed contact in the pair of contact of described relay is connected with an input plug, and the conductive reed of another socket in a normally-closed contact and a pair of output socket is connected; Another of relay connects the DC power supply of transformer output to the control coil contact.

2, power supply changeover device according to claim 1 is characterized in that, also comprises a control switch, and this control switch is serially connected in the output of a contact of the control coil of relay.