CN103647199B - Multifunctional direct-current power supply rechargeable socket matched with solar power system on building - Google Patents

Abstract

The multi-functional DC power supply charging socket matched with the building solar power generation system is used in conjunction with the building solar power generation system. It is powered by the DC power of the solar power generation system installed on the residential building or commercial building. Hundreds or even thousands of the sockets can be configured. , Installed in some or all of the rooms of the building, it is convenient to provide DC power for digital electronic products and LED lights and other electrical appliances used in the building. The socket includes a single-chip microcomputer control module, a voltage stabilizing module, a charging module, a plurality of charging interfaces and a plurality of power supply interfaces; The power supply terminal of the module is connected. The invention directly uses the direct current energy generated by the solar panel to charge the digital electronic products and power the electric appliances, avoids the AC/DC conversion link, can save the adapter in the electronic products, improves the efficiency of electric energy use, saves energy and reduces emissions, and reduces the cost. Resources are saved.

Description

Multifunctional DC power supply charging socket matched with building solar power generation system

technical field

The invention relates to the field of new energy technology and building electrical devices, in particular to a multifunctional DC power supply charging socket matched with a building solar power generation system.

Background technique

Distributed solar energy application is the main direction of solar energy application in the future. It is the general trend to install solar power generation devices in residential or commercial buildings to directly supply power to users in the building, and sockets installed in rooms will provide users with the greatest convenience for using solar energy. At present, household power sockets are basically all AC sockets, whether they are mobile or embedded, or two-hole or three-plug. As the use and types of digital electronic products continue to increase, the lithium batteries they carry need DC charging. When charging, there must be a built-in charger to convert the 220V AC power into the DC power required by the electronic equipment. On the one hand, a matching charging adapter is required, which increases the charging cost, and the process of AC/DC conversion, step-down and step-up also causes waste of energy consumption. On the other hand, semiconductor lighting using LED has better energy-saving effect and longer life, but LED also needs DC power supply, the additional AC/DC conversion of AC power supply and the voltage fluctuation caused by AC grid seriously affect the cost of LED , service life and use effect have become one of the biggest obstacles to its entry into residential and commercial buildings.

At present, there are many design methods for solar DC sockets, for example: some are portable, some are used indoors, some are used to charge digital products, and some directly provide DC power to electrical appliances, etc., for example:

US20040204179A1 "Multi-Socket Solar Energy Converting Battery Charger for Mobile Phone" has a solar DC charging function, but its designed socket port is too single, and is generally only used for mobile phone charging, so the power supply voltage cannot be flexibly selected.

CN 01217085.2 "DC socket panel" utilizes transformers and rectifiers to convert alternating current into low-voltage direct current to provide power for small household appliances. The adaptive voltage of electrical appliances can be adjusted by adjusting the knob, and multiple sockets can be connected in parallel to meet the needs of other places. This patent requires a variable pressure process.

CN 201320089860.8 "A multi-purpose solar charging device" uses solar panels and mains power to charge digital electronic products. The patent needs to combine solar DC power supply and mains power supply.

CN 201010204100.8 "A new type of solar socket" is composed of a photovoltaic module, a storage battery and a cable board, which is suitable for home use and requires a voltage transformation process.

CN 201220038808.5 "Solar socket", compared with other solar sockets, is characterized in that it is equipped with a solar panel bracket, which is convenient to move, and the output voltage is displayed by LED, which requires an expensive AC/DC conversion link with a high failure rate.

CN 200520134009.8 "Solar smart charger" is a multi-functional charger connected by solar charging components and a universal charger. It only has a USB interface and a miniUSB interface, and is suitable for digital electronic products.

CN 201320010420.9 "Solar battery charger" uses single-chip microcomputer control system, digital display circuit, buttons and other devices to form a device for charging different electronic products. It has the characteristics of voltage controllability and digital display voltage, but it is only suitable for digital electronics.

Because the above-mentioned several design methods and controllability are not perfect, the functions are not complete enough, the port is too single, and the scalability is not good. Therefore, the design of a multi-functional intelligent solar DC socket is very necessary.

Contents of the invention

The main purpose of the present invention is to overcome the above-mentioned shortcomings in the prior art, and propose a safe, reliable, flexible charging/power supply multifunctional DC power supply charging socket matched with building solar power generation systems.

The present invention adopts following technical scheme:

The multi-functional DC power supply charging socket matched with the solar power generation system of the building is installed in a residential or commercial building with a solar power generation system. Charging/power supply energy is characterized in that: it includes a single-chip microcomputer control module, a voltage stabilizing module, a charging module, a plurality of charging interfaces and a plurality of power supply interfaces; The output terminal of the module is connected with the power supply terminal of the single-chip microcomputer control module; the input terminal of the charging module is connected with the DC output terminal of the solar power generation system, and the output terminal of the charging module is also connected with multiple charging interfaces; the input terminal of the single-chip microcomputer control module and the charging module The control terminals are connected to control the working state of the charging module; the multiple power supply interfaces are all connected to the DC output terminals of the solar power generation system.

Preferably, the single-chip microcomputer control module also includes a feedback input terminal, which is used to receive the feedback signal of the electrical equipment, to detect the charging voltage and current of the electrical equipment, and to monitor the overcurrent, overvoltage and undervoltage Timely adjustment and voice or display prompts are carried out for undercurrent respectively.

Preferably, the single-chip microcomputer control module also includes a power detection terminal, which is connected to the DC output terminal of the solar power generation system to detect the DC power output of the solar power generation system, and respectively monitor the input voltage and current during the charging process. Adjust and voice or display prompts in time.

Preferably, the charging module includes a plurality of charging chips to provide voltages of different specifications, the input ends of the plurality of charging chips are respectively connected to the DC output ends of the solar power generation system, and the output ends of the plurality of charging chips are respectively connected to the charging The interfaces are connected in one-to-one correspondence.

Preferably, the plurality of charging chips include one or more of 5V charging chips, 9V charging chips, and 12V charging chips.

Preferably, the charging interface includes one or more of a 5V USB interface, a 9V USB interface, a 3.3V circular power interface, a 12V circular power interface, and a 12V four-pin anti-misplug interface.

Preferably, a touch display screen is also included, and the touch display screen is connected with the single-chip microcomputer control module.

Preferably, a voice module is also included, and the voice module is connected with the single-chip microcomputer control module.

As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following beneficial effects:

1. The socket of the present invention can be installed in some or all rooms of a residential building or a commercial building with a solar power generation device. /Cameras, LED lights and other electrical appliances provide the required charging/power supply energy.

2. The present invention can be directly connected to the solar power generation system, adopts DC input of various voltage types, saves DC/AC and AC/DC conversion and voltage transformation links, utilizes solar energy efficiently, and realizes environmental protection, energy saving and emission reduction.

3. The design of the socket of the present invention saves the charging adapter commonly used in current digital products, saving resources.

4. The socket of the present invention adopts a touch screen design, provides several common charging and power supply voltages, and can flexibly select the matching voltage by clicking the touch screen and display the voltage status on the touch screen.

5. The present invention includes at least one or more of the following types of sockets: USB interface (5V), USB interface (9V), circular power interface (3.3V), circular power interface (9V), circular power interface ( 12V), four-pin anti-misplug interface (12V), and can be connected through a conversion line to achieve expansion, suitable for various electrical equipment.

6. The single-chip microcomputer control module of the present invention intelligently controls the entire socket, including data communication with the charging chip, adjustment of overvoltage and overcurrent, and a command to stop power supply for undervoltage, undercurrent and short circuit conditions, which improves the safety of the socket. safety.

Description of drawings

Fig. 1 is the module circuit diagram of socket of the present invention;

Fig. 2 is the three-dimensional structure schematic diagram of socket of the present invention;

Fig. 3 is the front view of socket of the present invention;

Fig. 4 is the right side view of socket of the present invention;

Fig. 5 is the left view of socket of the present invention;

Fig. 6 is a distribution diagram of the internal structure of the socket of the present invention;

Among them: 1. Insulation shell; 2. Touch screen; 3. Power switch; 4. LED power supply; switch display light; 5. 5V USB interface; 6. 9V USB interface; 7. 3.7V circular power interface; 8. 12V circular power supply interface; 9. Power supply interface; 10. Sound hole; 11. Cooling port a; 12. Four-pin anti-misplug interface; 13. Voltage regulator module; 14. Single-chip microcomputer control module; 15. 5V charging chip; 16 1. Voice module; 17. Cooling port b; 18. 9V charging chip; 19. 12V charging chip.

detailed description

The present invention will be further described below through specific embodiments.

Referring to Fig. 1, the multifunctional DC power supply charging socket matched with the solar power generation system of the building is provided with various DC voltages by the solar power generation system, and is used as a power supply or charging connection socket for electrical equipment, including a single-chip microcomputer control module 14 and a voltage stabilizing module 13 , charging module, voice module 16, touch display screen 2, multiple charging interfaces and multiple power supply interfaces 9. The input terminal of the voltage stabilizing module 13 is connected with the DC output terminal of the solar power generation system, and the output terminal of the voltage stabilizing module 13 is connected with the power supply terminal of the single-chip microcomputer control module 14. The voltage stabilizing module 13 can adopt LM317. The input end of the charging module is connected with the DC output end of the solar power generation system, and the output end of the charging module is also connected with multiple charging interfaces. The single-chip control module 14 is connected with the input control terminal of the charging module to control the working state of the charging module. Both the voice module 16 and the touch display are connected with the single-chip microcomputer control module 14 . A plurality of power supply interfaces 9 are all connected to the DC output terminals of the solar power generation system to provide DC power.

Further, the single-chip microcomputer control module 14 of the present invention adopts a single-chip microcomputer C8051F330, which also includes a feedback input terminal and a power detection terminal. The feedback input terminal is used to receive feedback signals from electrical equipment, including overvoltage and overcurrent, undervoltage and undercurrent, short-circuit feedback, etc. Adjust and voice or display prompts. The power supply detection terminal is connected with the DC output terminal of the solar power generation system to detect the DC voltage and current output by the solar power generation system, and timely adjust the input voltage and current during the charging process and give voice or display prompts.

Further, the charging module includes a plurality of charging chips to provide voltages of different specifications, the input ends of the plurality of charging chips are respectively connected to the DC output ends of the solar power generation system, and the output ends of the plurality of charging chips are respectively connected to a plurality of charging interfaces. One-to-one connection. Referring to Figure 6, it includes 5V charging chip 15, 9V charging chip 18, and 12V charging chip 19 respectively using CS00301, BQ2057W, and BQ24702, and the corresponding three charging interfaces are 5V USB interface 5, 9V USB interface 6, and 12V circular power supply interface8. Of course, the charging chip can also use other chip structures on the market, as long as it meets the charging voltage requirements.

Further, the power supply interface 9 can adopt a circular power supply interface, and multiple circular power supply interfaces with different supply voltages can be set, including 3V, 7V, 12V, etc., so as to be suitable for different electrical equipment.

Referring to Fig. 2 for a schematic diagram of the socket structure of the present invention, the external insulating shell 1 of the socket adopts high temperature resistant, high flame retardant, high strength, composite PC and PBT insulating materials, and is 10-30cm long, 5-20cm wide, and 1-5cm high. Press the power button 3, the power indicator light 4 lights up, indicating that there is power input, two 5V USB ports 5 and one 9V USB port 6 are arranged in an inverted triangle on the panel, and there are 3.7V circular power ports directly below from left to right 7 and 12V circular power interface 8, in practical applications, 3.7V voltage can directly supply power to the radio, and 12V voltage can provide power for ordinary notebook computers. The lower right corner of the panel is a sound hole 10 .

As shown in Fig. 4 and Fig. 5, the right view and the left view of the socket are respectively provided with a heat dissipation port a 11 and a heat dissipation port b 17, and the two heat dissipation ports form natural convection heat dissipation. Fig. 3 is a front view of the socket, a four-pin anti-mistake socket 12 is located in the central position. The four 12V power supply interfaces 9 are arranged in sequence with an interval of 20-40 mm. These DC sockets are mainly used in electrical equipment such as LED lamps, for example, to provide DC power for LED lamps.

As shown in Figure 6, on the pcb board, the voltage regulator module 13 in the upper left corner adopts LM317, the single-chip microcomputer control module 14 is located above the middle of the board, and the charging chip is distributed on the upper right, and the position arrangement is the same as that shown in Figure 2. Correspondingly, the lower right corner is a voice chip whose position corresponds to the sound hole 10 shown in FIG. 2 .

The socket of the present invention can be installed in some or all of the rooms in residential buildings or commercial buildings with solar power generation devices, can be embedded or mobile, and is powered by direct current from the solar power generation device of the system, and can be used for computers, mobile phones, cameras/cameras, etc. , LED lights and other electrical appliances provide the required charging/power supply energy. Single-chip microcomputer control module 14 of the present invention carries out intelligent control to whole socket circuit, and its control function and work process are as follows:

First, there is data communication between the single-chip control module 14 and the touch display screen 2. When the user selects a different voltage on the touch screen 2, a pulse will be sent to the single-chip control module 14 to notify the single-chip control module 14 at this voltage. At the same time, there is data communication between the single-chip control module 14 and each charging chip. After clicking on the touch screen to select different voltages, the corresponding charging chip controlled by the single-chip control module 14 changes from the closed state to the open state for power consumption. The equipment provides power, and the data of the charging chip under the charging state of constant current and constant voltage is collected and displayed on the touch screen 2 through the single-chip microcomputer control module 14 .

Second, the external charging control circuit carried by the electrical equipment carries out real-time feedback on the charging state. When an overvoltage or overcurrent situation occurs, a feedback signal is sent to the single-chip control module 14 and judged, and the charging chip corresponding to the single-chip control module 14 charges Mode adjustment, when there is undervoltage, undercurrent or short circuit, the microcontroller control module 14 will stop charging according to the feedback signal and the voice module 16 will give a voice reminder.

The socket of the present invention can be used as a multi-functional DC charging/power supply socket used in conjunction with building solar power generation systems. It can allow hundreds or even thousands of sockets to be directly connected to the solar power supply system of residential and commercial buildings. Install this socket in the room of the building, and directly use the DC power generated by the solar panel to charge digital electronic products and power appliances. Avoid the AC/DC conversion link, improve the efficiency of electric energy use; and directly use solar energy to achieve energy saving and emission reduction, and at the same time, adapters in electronic products can be omitted, reducing costs and saving resources. In addition, it has a rich output port design, omits voltage transformation and AC-DC conversion to improve power efficiency, can realize intelligent monitoring and control functions of input and output status through the touch screen, and can also provide solar DC power for LED lights.

The above is only a specific embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial changes made to the present invention by using this concept should be an act of violating the protection scope of the present invention.

Claims (6)

1. the multifunctional DC power supply-charging socket supporting with building solar power system, is installed on solar electrical energy generation system In the house of system or Business Building, provide multiple DC voltages by solar power system, assembling is various electrical equipments indoors Required charging/power supply energy is provided it is characterised in that: include single chip control module, Voltage stabilizing module, charging module, multiple Charging inlet and multiple power supply interface；The input of this Voltage stabilizing module is connected with the DC output end of solar power system, surely The outfan of die block is connected with the feeder ear of single chip control module；The input of this charging module and solar power system DC output end be connected, the outfan of charging module is also connected with multiple charging inlets；This single chip control module and charging mould The input control end of block is connected to control charging module working condition；The plurality of power supply interface is all straight with solar power system Stream outfan is connected；Described single chip control module also includes feedback input end, for the charging voltage of detection equipment And electric current, and overcurrent-overvoltage and under-voltage undercurrent are adjusted and voice or display reminding respectively in time；Described Single-chip Controlling Module also includes power detecting end, and this power detecting end is connected with the DC output end of solar power system for detection too The DC source of sun energy electricity generation system output, is adjusted and voice respectively in time to the input voltage in charging process, electric current Or display reminding.

2. multifunctional DC power supply-charging socket supporting with building solar power system as claimed in claim 1, it is special Levy and be: described charging module includes multiple charging chips to provide the voltage of different size, the input of the plurality of charging chip End is connected with the DC output end of solar power system respectively, the outfan of multiple charging chips respectively with described charging inlet Connect one to one.

3. multifunctional DC power supply-charging socket supporting with building solar power system as claimed in claim 2, it is special Levy and be: described multiple charging chips include one of 5v charging chip, 9v charging chip, 12v charging chip or many Kind.

4. multifunctional DC power supply-charging socket supporting with building solar power system as claimed in claim 1, it is special Levy and be: described charging inlet include 5v usb interface, 9v usb interface, 3.3v circle power interface, 12v circle power supply connect One or more of mouth, the anti-error interface of 12v tetra- pin.

5. multifunctional DC power supply-charging socket supporting with building solar power system as claimed in claim 1, it is special Levy and be: also include touch display screen, this touch display screen is connected with described single chip control module.

6. multifunctional DC power supply-charging socket supporting with building solar power system as claimed in claim 1, it is special Levy and be: also include voice module, this voice module is connected with single chip control module.