CN203206133U

CN203206133U - Universal socket

Info

Publication number: CN203206133U
Application number: CN 201320214642
Authority: CN
Inventors: 徐新华
Original assignee: SHENZHEN MAORUN ELECTRIC CO Ltd
Current assignee: Guangdong BESTEK Medical Devices Co Ltd
Priority date: 2013-04-25
Filing date: 2013-04-25
Publication date: 2013-09-18
Anticipated expiration: 2023-04-25

Abstract

The utility model discloses a universal socket, which comprises an AC input terminal, an AC/AC conversion circuit, an AC output terminal, a full-wave rectification filter circuit and a high and low voltage detection control circuit, wherein the AC input terminal and the full-wave rectification filter circuit The circuits are respectively electrically connected to the mains power supply, and the input end of the AC/AC conversion circuit is electrically connected to the AC input end to convert the input high-voltage alternating current into low-voltage alternating current. The AC/AC conversion circuit The output end is electrically connected to the AC output end, and the high and low voltage detection control circuit is electrically connected to the AC/AC conversion circuit and the full-wave rectification filter circuit for detecting the output voltage of the AC/AC conversion circuit To control the output of the AC output. Its beneficial effects are: the utility model converts the input 220V alternating current into 110V low-voltage alternating current through the AC/AC conversion circuit. The problem of unsuitable power supply in China.

Description

Universal Socket

Technical field

The utility model relates to socket, relates in particular to a kind of Universal Socket that high pressure can be converted to low pressure.

Background technology

Known socket is a kind of electric connection device, output plughole with power supply, generally be directly to be installed on panel on the body of wall or insert row etc., yet, general its function singleness of existing socket, output plughole is three holes or two holes, the voltage of input and output is 220V, only be used in the electrical appliance of domestic specification, along with extensiveization and the internationalization of electronic product, some external electronic products appear at the market of China in succession, and external product since power input voltage from domestic different, therefore,, then need to adjust power plug is first-class if enter domesticly for the external electronic product of part, so, produced great constantly, even caused the foreigner to enter China, its electronic product that carries can not normally use.

The utility model content

The purpose of this utility model is to overcome the deficiency in the prior art and a kind of Universal Socket of providing, and this Universal Socket can be converted into high voltage source low tension output, to adapt to the electronic product of country variant.

The technical scheme that the prior art problem that solves the utility model adopts is: a kind of Universal Socket, it comprises the AC input, the AC/AC change-over circuit, the AC output, full-wave rectifier filter circuit and high-low pressure detect control circuit, wherein, described AC input and full-wave rectifier filter circuit are electrically connected with mains supply respectively, the input of described AC/AC change-over circuit and described AC input are electrically connected, be converted to low-voltage AC in order to the High Level AC Voltage with input, the output of described AC/AC change-over circuit and described AC output are electrically connected, described high-low pressure detects control circuit and is electrically connected with described AC/AC change-over circuit and full-wave rectifier filter circuit, for detection of the voltage of described AC/AC change-over circuit output to control the output of AC output.

The below further sets forth technique scheme:

Further, also comprise pwm control circuit, switching circuit, DC/DC change-over circuit and DC output, wherein, described DC output and described DC/DC change-over circuit are electrically connected;

Described pwm control circuit is electrically connected with described full-wave rectifier filter circuit, switching circuit and DC/DC change-over circuit respectively, in order to detect DC/DC change-over circuit output end voltage, when the voltage that detects reaches the setting output valve, export a pwm control signal to described switching circuit;

Described switching circuit and described full-wave rectifier filter circuit and DC/DC change-over circuit are electrically connected; In order to respond the low-voltage signal after the output of described pwm control signal control DC/DC change-over circuit is changed.

Further, the low-voltage signal of described DC output output is 5V.

Further, the High Level AC Voltage of described AC input output is 220V; The low-voltage AC of described AC output output is 110V.

The beneficial effects of the utility model are: one, the utility model are converted into the 220V alternating current of input by the AC/AC change-over circuit low-voltage AC of 110V, the low-voltage AC of this 110V and some external electronic products adapt, external all size electronic product can be plugged this Universal Socket before using, be connected on domestic socket or the insert row and get final product, therefore, can not cause the problems such as external electronic product burns out like this, the electronic product that can solve external all size enters the not adaptive problem of Chinese power supply; Two, the utility model also provides the direct current of 5V by DC/DC change-over circuit, switching circuit etc., and it is some electronic product chargings etc. directly that this 5V direct current utilizes USB interface, so that its more perfect function is used convenient.

Description of drawings

Fig. 1 is theory diagram of the present utility model;

Among the figure: AC input 10; Full-wave rectifier filter circuit 20; AC/AC change-over circuit 30; AC output 40; High-low pressure detects control circuit 50; Pwm control circuit 60; Switching circuit 70; DC/DC change-over circuit 80; DC output 90.

The realization of the utility model purpose, functional characteristics and advantage are described further with reference to accompanying drawing in connection with embodiment.

Embodiment

Describe the technical solution of the utility model in detail below with reference to drawings and the specific embodiments, so as clearer, understand invention essence of the present utility model intuitively.

With reference to shown in Figure 1, the utility model provides a kind of Universal Socket, it comprises AC input 10, AC/AC change-over circuit 30, AC output 40, full-wave rectifier filter circuit 20 and high-low pressure detect control circuit 50, wherein, described AC input 10 and full-wave rectifier filter circuit 20 are electrically connected with mains supply respectively, AC input 10 is used for being electrically connected with the city, the input high tension voltage, full-wave rectifier filter circuit 20 is used for the alternating current of input is carried out rectifying and wave-filtering, the input of described AC/AC change-over circuit 30 and described AC input 10 are electrically connected, be converted to low-voltage AC in order to the High Level AC Voltage with input, the output of described AC/AC change-over circuit 30 and described AC output 40 are electrically connected, AC output 40 is used for the output AC low-voltage signal, described high-low pressure detects control circuit 50 and is electrically connected with described AC/AC change-over circuit 30 and full-wave rectifier filter circuit 20, voltage for detection of described AC/AC change-over circuit 30 outputs is high voltage (220V) or low-voltage (110V), controls the magnitude of voltage of the output voltage of AC output 40 again.

Further, also comprise pwm control circuit 60, switching circuit 70, DC/DC change-over circuit 80 and DC output 90, wherein, described DC output 90 is electrically connected with described DC/DC change-over circuit 80; Described pwm control circuit 60 is electrically connected with described full-wave rectifier filter circuit 20, switching circuit 70 and DC/DC change-over circuit 80 respectively, in order to detect DC/DC change-over circuit 80 output end voltages, when the voltage that detects reaches the setting output valve, export a pwm control signal to described switching circuit 70; Described switching circuit 70 is electrically connected with described full-wave rectifier filter circuit 20 and DC/DC change-over circuit 80; In order to respond the low-voltage signal after 80 outputs of described pwm control signal control DC/DC change-over circuit are changed.

In the present embodiment, the High Level AC Voltage of described AC input 10 outputs is 220V; The low-voltage AC of described AC output 40 outputs is 110V, and so, the 110V voltage after the conversion requires voltage suitable with external electronic product, and the low-voltage signal of described DC output 90 outputs is 5V, can be the electronic product charging.

To sum up, the utility model is converted into the 220V alternating current of input by AC/AC change-over circuit 30 low-voltage AC of 110V, the low-voltage AC of this 110V and some external electronic products adapt, external all size electronic product can be plugged this Universal Socket before using, be connected on domestic socket or the insert row and get final product, therefore, can not cause the problems such as external electronic product burns out like this, the electronic product that can solve external all size enters the not adaptive problem of Chinese power supply; In addition, the utility model also provides the direct current of 5V, this 5V direct current to utilize USB interface directly for some electronic product chargings etc., so that its more perfect function is used convenient by DC/DC change-over circuit 80, switching circuit 70 etc.

The above only is preferred embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.

Claims

1. A universal socket, characterized in that: it comprises an AC input terminal, an AC/AC conversion circuit, an AC output terminal, a full-wave rectification filter circuit and a high and low voltage detection control circuit, wherein the AC input terminal and the full-wave rectifier The filter circuits are respectively electrically connected to the mains power supply, and the input end of the AC/AC conversion circuit is electrically connected to the AC input end to convert the input high-voltage alternating current into low-voltage alternating current. The AC/AC conversion circuit The output end of the AC output end is electrically connected to the AC output end, the high and low voltage detection control circuit is electrically connected to the AC/AC conversion circuit and the full-wave rectification filter circuit, and is used to detect the output of the AC/AC conversion circuit. voltage to control the output at the AC output.

2. The universal socket according to claim 1, characterized in that: it also includes a PWM control circuit, a switch circuit, a DC/DC conversion circuit and a DC output terminal, wherein the DC output terminal and the DC/DC conversion circuit electrical connection;

The PWM control circuit is electrically connected to the full-wave rectification filter circuit, the switch circuit and the DC/DC conversion circuit respectively, and is used to detect the voltage at the output terminal of the DC/DC conversion circuit. When the detected voltage reaches the set output value, outputting a PWM control signal to the switch circuit;

The switch circuit is electrically connected with the full-wave rectification filter circuit and the DC/DC conversion circuit, and is used for controlling the DC/DC conversion circuit to output a converted low-voltage signal in response to the PWM control signal.

3. The universal socket according to claim 2, wherein the low-voltage signal output by the DC output end is 5V.

4. The universal socket according to claim 1, characterized in that: the high-voltage alternating current output by the AC input end is 220V; the low-voltage alternating current output by the AC output end is 110V.