WO2020224177A1

WO2020224177A1 - Continuous direct current output device

Info

Publication number: WO2020224177A1
Application number: PCT/CN2019/109291
Authority: WO
Inventors: 张少林; 丘春辉; 梁勤飞
Original assignee: 深圳威富智慧家居科技有限公司
Priority date: 2019-05-07
Filing date: 2019-09-30
Publication date: 2020-11-12
Also published as: CN210120490U

Abstract

A continuous direct current output device, which comprises an alternating current/direct current conversion circuit (100), a voltage control circuit (200), and an interface panel (300). The alternating current/direct current conversion circuit (100) is used for converting an alternating current into a direct current output of an arbitrary voltage value in a preset range. The voltage control circuit (200) is electrically connected to the alternating current/direct current conversion circuit (100) and is used for controlling the alternating current/direct current conversion circuit (100) to output a direct current voltage. The interface panel (300) comprises a panel body (301), a direct current output interface (310), and a voltage input component (320). The direct current output interface (310) and the voltage input component (320) are provided on the panel body (301). The direct current output interface (310) is electrically connected to an output end of the alternating current/direct current conversion circuit (100). The voltage input component (320) is electrically connected to the voltage control circuit (200). The voltage input component (320) is used for inputting a target direct current voltage to the voltage control circuit (200). The continuous direct current output device is capable of outputting a continuous direct current, is convenient to use, and saves space.

Description

Continuous DC output device

Related application

This application claims the priority of the Chinese patent application filed on May 07, 2019 with the application number 201920642801.6 and titled "Continuous DC Output Device", which is hereby incorporated by reference in its entirety.

Technical field

This application relates to the field of circuit design, and more specifically, to a continuous DC output device.

Background technique

With the development of technology, there are more and more types of electrical appliances. Generally electrical appliances need DC power supply. However, at present, the power supply of the electric place is to output the AC power through the standard panel, and the power adapter is required when the electrical appliance is connected to the power source. Therefore, electrical appliances with different voltage requirements need to be equipped with different types of power adapters, which is inconvenient to use and brings a lot of trouble to users.

Summary of the invention

In view of this, this application discloses a continuous DC output device.

A continuous DC output device, including:

AC-DC conversion circuit, used to convert AC power into DC power output with any voltage value within the preset range;

A voltage control circuit, electrically connected to the AC-DC conversion circuit, and used for controlling the voltage of the DC power output by the AC-DC conversion circuit;

The interface panel includes a panel body, a DC output interface, and a voltage input assembly. The DC output interface and the voltage input assembly are both arranged on the panel body. The DC output interface is electrically connected to the output terminal of the AC-DC conversion circuit. Connected, the voltage input component is electrically connected to the voltage control circuit, and the voltage input component is used to input a target direct current voltage to the voltage control circuit.

The continuous DC output device provided in the embodiment of the present application includes the AC to DC conversion circuit, the voltage control circuit, and the interface panel. The interface panel includes the panel body and the DC output interface and voltage input component arranged on the panel body. The voltage input component is electrically connected with the voltage control circuit. The voltage control circuit is electrically connected to the AC-DC conversion circuit. The AC-DC conversion circuit is electrically connected with the DC output interface. The continuous DC output device provided in this embodiment outputs DC power to the panel body through the AC-DC conversion circuit and the DC output interface, and can supply power to electrical equipment without connecting an adapter, which is convenient and quick to use. In addition, the continuous DC output device can be directly installed on a wall in the use environment through the interface panel, which saves installation space and is convenient to use. At the same time, the AC-DC conversion circuit can convert AC power into any voltage value within a preset range, can be applied to all electrical equipment within the preset range, further realize the free choice of multiple DC power, and improve the continuous DC output device Versatility and practicality.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present application more clearly, the following will briefly introduce the drawings needed in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present application. Ordinary technicians can obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic structural diagram of a continuous DC output device provided by an embodiment of the application;

2 is a schematic structural diagram of a continuous DC output device provided by an embodiment of the application;

3 is a circuit diagram of a continuous DC output device provided by an embodiment of the application;

4 is a schematic structural diagram of a continuous DC output device provided by an embodiment of the application;

FIG. 5 is a schematic diagram of the structure of a power connection line provided by an embodiment of the application.

Description of reference signs

Continuous DC output device 10

AC-DC conversion circuit 100

AC-DC sub-circuit 170

Step-down circuit 180

Bridge drive circuit 190

Voltage control circuit 200

Select switch 210

Microprocessor 220

Interface panel 300

Panel body 301

DC output interface 310

Voltage input components 320

DC-DC conversion circuit 400

Power connection line 500

Input interface 510

Output interface 520

Connecting line 530

AC power supply 20

DC power supply 30

Detailed ways

In order to make the objectives, technical solutions, and advantages of the present application clearer, the following uses embodiments and accompanying drawings to further describe the present application in detail. It should be understood that the specific embodiments described herein are only used to explain the application, and not used to limit the application.

The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequence or technical meaning. The "connection" and "connection" mentioned in this application include direct and indirect connection (connection) unless otherwise specified. In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description , Rather than indicating or implying that the pointed device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the application.

In this application, unless expressly stipulated and defined otherwise, the “on” or “under” of the first feature on the second feature may be in direct contact with the first and second features, or indirectly through an intermediary. contact. Moreover, the "above", "above" and "above" of the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the level of the first feature is higher than the second feature. The “below”, “below” and “below” of the second feature of the first feature may mean that the first feature is directly below or obliquely below the second feature, or it simply means that the level of the first feature is smaller than the second feature.

Referring to FIG. 1, an embodiment of the present application provides a continuous DC output device 10. The continuous DC output device 10 includes an AC-DC conversion circuit (AC-DC conversion circuit) 100, a voltage control circuit 200 and an interface panel 300. The voltage control circuit 200 is electrically connected to the AC-DC conversion circuit 100. The interface panel 300 includes a panel body 301, a DC output interface 310 and a voltage input component 320. The DC output interface 310 and the voltage input component 320 are both disposed on the panel body 301. The DC output interface 310 is electrically connected to the output terminal of the AC to DC conversion circuit 100. The voltage input component 320 is electrically connected to the voltage control circuit 200.

The AC-DC conversion circuit 100 is used to convert AC power into DC power of any voltage value within a preset range and output through the DC output interface 310, that is, the AC-DC conversion circuit 100 is used to convert AC power into Continuous DC output. For example, the external power source is 220V alternating current, and the alternating current to direct current conversion circuit 100 can convert the 220V alternating current into a direct current output of any voltage value in the range of 5V-60V. The AC-DC conversion circuit 100 can be realized by a pure circuit structure, or can be realized by a combination of a software program and a circuit. The voltage value of the DC power output by the AC-DC conversion circuit 100 is continuously adjustable. The specific circuit, implementation mode, and output voltage value range of the AC-DC conversion circuit 100 are not limited in this application, and can be selected according to actual needs.

The input terminal of the voltage control circuit 200 is electrically connected to the voltage input component 320, and receives the target voltage value input by the voltage input component 320, that is, the required voltage value. The output terminal of the voltage control circuit 200 is electrically connected to the AC-DC conversion circuit 100 for selecting and controlling the voltage of the DC power output by the AC-DC conversion circuit 100. The voltage control circuit 200 can be controlled by a pure hardware circuit, or can be controlled by a combination of a software program and a hardware circuit. The present application does not specifically limit the structure of the voltage control circuit 200, and it can be selected according to actual needs, as long as its function can be realized.

Mounting holes may be opened on the surface of the panel body 301, and the DC output interface 310 and the voltage input component 320 may pass through the mounting holes. The panel body 301 can be clamped on the wall of the place of use. The wall is correspondingly provided with grooves. Part or all of the DC output interface 310 and the voltage input assembly 320 protrude from the front of the panel body 301 to facilitate user operations. The AC-DC conversion circuit 100 and the voltage control circuit 200 may be arranged on the back of the panel body 301, or may be arranged in a groove of the wall body, and are only connected to the DC output interface 310 and the voltage input assembly. 320 are electrically connected by wires and the like. The size, material and shape of the panel body 301 are not limited, and can be selected according to actual needs. The DC output interface 310 is used for plugging in with electric equipment and outputting DC power to the electric equipment. The number and interface form of the DC output interface 310 can be set according to actual requirements. The voltage input component 320 may be a knob input component, a key input component, or a touch screen input component. This application does not limit the specific structure and model of the voltage input component 320, as long as the function can be realized.

The working process of the continuous DC output device 10 provided in this embodiment is as follows: the user inputs a required DC voltage value, such as 18V, to the voltage control circuit 200 through the voltage input component 320 on the panel body 301. The voltage control circuit 200 controls the AC-DC conversion circuit 100 to convert AC power into 18V DC power and output it through the DC output interface 310. The electrical equipment can be directly electrically connected to the DC output interface 310 to obtain electricity and use electricity without an adapter.

In this embodiment, the continuous DC output device 10 includes the AC to DC conversion circuit 100, the voltage control circuit 200, and the interface panel 300. The interface panel 300 includes the panel body 301 and the DC output interface 310 and the voltage input component 320 provided on the panel body 301. The voltage input component 320 is electrically connected to the voltage control circuit 200. The voltage control circuit 200 is electrically connected to the AC-DC conversion circuit 100. The AC-DC conversion circuit 100 is electrically connected to the DC output interface 310. The continuous DC output device 10 provided in this embodiment outputs DC power to the panel body 301 through the AC-DC conversion circuit 100 and the DC output interface 310, and can supply power to electrical equipment without connecting an adapter. Convenient. In addition, the continuous DC output device 10 can be directly installed on a wall in the use environment through the interface panel 300, which saves installation space and is convenient to use. At the same time, the AC-DC conversion circuit 100 can convert AC power into any voltage value within a preset range, can be applied to all electrical equipment within the preset range, further realize the free choice of multiple DC power, and improve the continuous DC output The versatility and practicality of the device 10.

In an embodiment, the voltage input component 320 may be any device capable of realizing voltage input. The voltage input component 320 includes, but is not limited to, input knobs, input switches, numeric keys, keyboards, touch screens, and the like.

Referring to FIG. 2, in one embodiment, the voltage control circuit 200 includes a microprocessor (Microcontroller Unit, MCU) 220. The output terminal of the voltage input component 320 is electrically connected with the input terminal of the microprocessor 220, and the microprocessor 220 is electrically connected with the input terminal of the AC-DC conversion circuit 100. The voltage input component 320 receives the target voltage value input by the voltage input component 320, and controls the AC/DC conversion circuit 100 to output a voltage of a corresponding value according to the target voltage value. The manner in which the microprocessor 220 controls the AC-DC conversion circuit 100 includes but is not limited to pulse width modulation (PWM) signal control. In this embodiment, the input of the target voltage is realized by the voltage input component 320, the target voltage value is input accurately, and the control of the AC-DC conversion circuit 100 is realized by the microprocessor 220, the circuit structure is simple, and the DC voltage The output is accurate.

Please continue to refer to FIG. 2. In one embodiment, the output terminal of the AC-DC conversion circuit 100 may also be electrically connected to the input terminal of the microprocessor 220. The voltage value output by the AC-DC conversion circuit 100 after conversion is used as the feedback value of the microprocessor 220. The microprocessor 220 combines the target voltage value and the feedback value to adjust the AC to DC conversion circuit 100 in real time to further improve the accuracy of DC voltage output.

Please continue to refer to FIG. 2. In one embodiment, the AC-DC conversion circuit 100 includes an AC-DC sub-circuit 170, a step-down circuit 180 and a bridge drive circuit 190. The AC-DC sub-circuit 170 is used to convert alternating current into direct current with a preset voltage value. The input end of the AC-DC sub-circuit 170 is electrically connected to the AC power source 20. The output terminal of the AC-DC sub-circuit 170 is electrically connected to the input terminal of the step-down circuit 180. The control terminal of the step-down circuit 180 is electrically connected to the output terminal of the microprocessor 220 through the bridge driving circuit 190. At the same time, the output terminal of the voltage input component 320 is electrically connected to the input terminal of the microprocessor 220. The output terminal of the step-down circuit 180 is electrically connected to the DC output interface 310. The microprocessor 220 controls the operation of the bridge driving circuit 190 and the step-down circuit 180 according to the target voltage value input by the voltage input component 320. The step-down circuit 180 and the bridge driving circuit 190 output DC power of corresponding voltage. The step-down circuit 180 includes but is not limited to a step-down converter (BUCK) circuit. In an embodiment, a partial circuit diagram of the AC-DC conversion circuit 100 may be as shown in FIG. 3.

In one embodiment, the panel body 201 is a standard switch panel. That is, the size of the panel body 201 is one of 86 type, 118 type, 120 type or 146 type. Wherein, the appearance of the 86-type panel body 201 is square, and the external dimension is 86mm×86mm. The 86-type panel body 201 conforms to international standards, has strong versatility, and is firmly installed.

In an embodiment, the number of the DC output interface 310 is multiple. The multiple DC output ports 310 are all disposed on the panel body 301. Each of the DC output interfaces 310 is electrically connected to the multiple output terminals of the AC to DC conversion circuit 100. The provision of a plurality of the DC output interfaces 310 can satisfy the simultaneous use of a plurality of electrical equipment, and improve the practicability.

In one embodiment, the DC output interface 310 is a universal serial bus (USB) interface. The DC output interface 310 of the USB can be used to charge power-consuming devices in the form of USB such as mobile phones, players, and mice.

In one embodiment, the DC output interface 310 is a square interface or a circular interface. The DC output interface 310 of a square interface or a circular interface can improve the versatility of connection with electrical equipment.

Referring to FIG. 4, in one embodiment, the continuous DC output device 10 further includes a DC-DC conversion circuit (DC-DC conversion circuit) 400. The DC-DC conversion circuit 400 is used to convert the DC power into a DC power output that converts the DC power into any other voltage value within a preset range. The DC to DC conversion circuit 400 is electrically connected to the voltage control circuit 200. The DC output interface 310 is electrically connected to the multiple output terminals of the DC-DC conversion circuit 400. Specifically, the input terminal of the DC-DC conversion circuit 400 is electrically connected to the DC power supply 30. The control terminal of the DC-DC conversion circuit 400 is electrically connected to the voltage control circuit 200. The multiple output ends of the DC-DC conversion circuit 400 are electrically connected to the DC output interface 310. In this embodiment, the DC-DC conversion circuit 400 enables the continuous DC output device 10 to provide DC power with different outputs when there is no AC power, which further improves the practicability.

In one embodiment, the direct current to direct current conversion circuit 400 cooperates with the microprocessor 220 to convert direct current into a direct current output of any other voltage value within a preset range. The specific circuit structure of the AC AC converter 400 may be similar to the structure shown in FIG. 2. I will not repeat them here.

Referring to FIG. 5, in one embodiment, the continuous DC output device 10 further includes a power connection line 500. The power connection line 500 includes an input interface 510, an output interface 520 and a connection line 530. Both the input interface 510 and the output interface 520 are electrically connected to the connection line 530. The interface type of the input interface 510 can be matched with the DC output interface 310, so as to realize the plug connection with the DC output interface 310. The output interface 520 matches the power plug interface of the electrical equipment according to the different electrical equipment. By inserting the input interface 510 into the DC output interface 310, the output interface 520 is connected to the power supply interface of the electric device to realize power supply to the electric device. In this embodiment, the power-consuming device does not need a matching adapter or a matching connection line to realize power access, which is convenient to use and has strong practicability.

The above-mentioned embodiments only express a few implementation modes of the present application, and their description is relatively specific and detailed, but they should not be understood as a limitation on the scope of the patent application. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of this application, several modifications and improvements can be made, and these all fall within the protection scope of this application. Therefore, the scope of protection of the patent of this application shall be subject to the appended claims.

Claims

A continuous DC output device, characterized in that it comprises:

AC-DC conversion circuit (100), used to convert AC power into DC power output of any voltage value within a preset range;

A voltage control circuit (200), electrically connected to the AC-DC conversion circuit (100), for controlling the AC-DC conversion circuit (100) to output a DC voltage;

The interface panel (300) includes a panel body (301), a DC output interface (310) and a voltage input component (320). The DC output interface (310) and the voltage input component (320) are both arranged on the panel Body (301), the DC output interface (310) is electrically connected with the output terminal of the AC-DC conversion circuit (100), the voltage input component (320) is electrically connected with the voltage control circuit (200), so The voltage input component (320) is used to input a target DC voltage to the voltage control circuit (200).
The continuous DC output device according to claim 1, wherein the voltage control circuit (200) comprises a microprocessor (220), and the voltage input component (320) is electrically connected to the microprocessor (220). And the microprocessor (220) is electrically connected with the AC-DC conversion circuit (100).
The continuous DC output device according to claim 2, wherein the AC-DC conversion circuit (100) includes an AC-DC sub-circuit (170), a step-down circuit (180) and a bridge drive circuit (190), so The AC-DC sub-circuit (170) is electrically connected to the step-down circuit (180), and the step-down circuit (180) is electrically connected to the microprocessor (220) through the bridge drive circuit (190). Connected, the step-down circuit (180) is electrically connected with the DC output interface (310).
The continuous DC output device according to claim 3, wherein the output terminal of the AC-DC conversion circuit (100) is electrically connected to the microprocessor (220).
The continuous DC output device according to claim 3, wherein the step-down circuit (180) comprises a step-down conversion circuit.
The continuous DC output device according to claim 3, characterized in that the microprocessor (220) controls the AC to DC conversion circuit (100) through a pulse width modulation signal.
The continuous DC output device according to claim 3, characterized in that the input end of the AC-DC sub-circuit (170) is electrically connected to an AC power supply (20).
The continuous DC output device according to claim 1, wherein the panel body (301) is an 86-type panel, a 118-type panel, a 120-type panel or a 146-type panel.
The continuous DC output device according to claim 8, wherein the shape of the 86-type panel is square, and the external dimension of the 86-type panel is 86mm x 86mm.
The continuous DC output device according to claim 1, wherein the number of the DC output ports (310) is multiple, and each of the DC output ports (310) is provided on the panel body (301), and They are respectively electrically connected to the output ends of the AC-DC conversion circuit (100).
The continuous DC output device according to claim 1, wherein the voltage input component (320) is an input knob, an input switch, a digital key input component, a keyboard input component or a touch screen input component.
The continuous DC output device according to claim 1, further comprising:

The power connection line (500) includes an input interface (510), an output interface (520), and a connection line (530). The input interface (510) and the output interface (520) are both connected to the connection line (530) Electrical connection, the input interface (510) can be matched and plugged with the DC output interface (310) to achieve electrical connection, and the power connection line (500) is used to realize the DC output interface (310) and the electrical equipment Electrical connection.
The continuous DC output device according to claim 1, wherein the DC output interface (310) is a universal serial bus interface.
The continuous DC output device according to claim 1, wherein the DC output interface (310) is a circular socket or a square socket.
The continuous DC output device according to claim 1, further comprising:

A DC-DC conversion circuit (400), the DC-DC conversion circuit (400) is electrically connected to the voltage control circuit (200), and the DC output interface (310) is multiplexed with the DC-DC conversion circuit (400) The output ends are electrically connected, and the DC-DC conversion circuit (400) is used to convert the DC power into a DC power output of any voltage value within a preset range.
The continuous DC output device according to claim 15, characterized in that the input end of the DC to DC conversion circuit (400) is electrically connected to a DC power supply (30).