Optical energy power supply module for ETC and ETC device

Abstract

The utility model provides a light energy power supply module for ETC and an ETC device, and the light energy power supply module comprises a monocrystalline silicon solar panel, a composite lithium ion capacitor, a solar charging management circuit, and a PCB. The front surface of the monocrystalline silicon solar panel is used for converting solar energy into electric energy, and the back surface of the monocrystalline silicon solar panel is fixedly connected with the back surface of the PCB; the composite lithium ion capacitor and the solar charging management circuit are arranged on the front surface of the PCB; the power output end of the back face of the monocrystalline silicon solar panel is electrically connected with the photovoltaic voltage input end of the solar charging management circuit. The positive electrode and the negative electrode of the composite lithium ion capacitor are electrically connected with the energy storage end of the solar charging management circuit; and the voltage output end of the solar charging management circuit is used for providing working voltage for the ETC body, so that an environment-friendly ETC charging technical scheme with a better charging effect is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of ETC charging, and in particular to a light energy power supply module and an ETC device for ETC. Background Art

[0002] At present, the environmental pollution caused by waste batteries is serious. According to tests and calculations, one button battery can pollute 600 cubic meters of water; one No. 1 battery rots in the soil, which can make one square meter of land lose its use value. In daily life, if waste batteries are mixed with domestic garbage, the harmful heavy metals in the batteries will be dissolved after the batteries rot, which will pollute groundwater and soil, directly threatening human health. According to data provided by the China Battery Industry Association, my country's annual battery production is 18 billion, about 10 billion are exported, and the annual domestic consumption is about 8 billion. This is an extremely large consumption figure. These waste batteries have become one of the major sources of environmental pollution. At present, all ETCs sold on the market use 3.2V-3.6V lithium batteries and amorphous silicon small solar panels to power and charge ETC devices. During the charging process, the charging effect of amorphous silicon small solar panels is extremely poor, and users generally use ETC built-in batteries for 2-3 years before they are close to being scrapped, resulting in a large number of ETC built-in batteries that need to be scrapped every year. The scrapping of ETC built-in batteries has also increased the risk of environmental pollution and damage to a certain extent.

[0003] Therefore, it is necessary to provide an ETC charging technology solution that is environmentally friendly and has better charging effects. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a light energy power supply module and an ETC device for ETC.

[0005] The utility model provides a light energy power module for ETC, comprising: a monocrystalline silicon solar panel, a composite lithium-ion capacitor, a solar charging management circuit, and a PCB board;

[0006] The front side of the monocrystalline silicon solar panel is used to convert solar energy into electrical energy, and the back side thereof is fixedly connected to the back side of the PCB board;

[0007] The composite lithium-ion capacitor and the solar charging management circuit are arranged on the front side of the PCB board;

[0008] The power output terminal on the back side of the monocrystalline silicon solar panel is electrically connected to the photovoltaic voltage input terminal of the solar charging management circuit;

[0009] The positive and negative electrodes of the composite lithium-ion capacitor are electrically connected to the energy storage end of the solar charging management circuit;

[0010] The voltage output end of the solar charging management circuit is used to provide working voltage for the ETC body.

[0011] In a possible implementation, the solar charging management circuit includes a charging protection chip, an NMOS tube chip, a first resistor, a second resistor, a filter capacitor, a first diode, a first interface as the photovoltaic voltage input end, and a second interface as the voltage output end;

[0012] The VDD end of the charging protection chip is electrically connected to the first end of the first resistor and the first end of the filter capacitor respectively, the VSS end thereof is electrically connected to the negative electrode of the composite lithium-ion capacitor, the second end of the filter capacitor, and the first source electrode of the NMOS chip respectively, the DO end thereof is electrically connected to the first gate electrode of the NMOS chip, the CO end thereof is electrically connected to the second gate electrode of the NMOS chip, and the VM end thereof is electrically connected to the first end of the second resistor;

[0013] The first drain of the NMOS chip is electrically connected to its second drain, and the second source of the NMOS chip is electrically connected to the second end of the second resistor, the negative electrode of the first interface, and the negative electrode of the second interface respectively;

[0014] The second end of the first resistor is electrically connected to the positive electrode of the composite lithium-ion capacitor, the negative electrode of the first diode, and the positive electrode of the second interface respectively;

[0015] An anode of the first diode is electrically connected to an anode of the first interface.

[0016] In a possible implementation, the solar charging management circuit further includes a third interface and a second diode for backup charging;

[0017] The anode of the third interface is electrically connected to the anode of the second diode, and the cathode of the third interface is electrically connected to the second end of the second resistor;

[0018] The cathode of the second diode is electrically connected to the anode of the composite lithium-ion capacitor.

[0019] In a possible implementation, the third interface is connected to a Type-C interface.

[0020] In a possible implementation, it also includes a module housing;

[0021] The opening side of the module housing is arranged at the back edge of the monocrystalline silicon solar panel;

[0022] The PCB board is located in a protective cavity formed by the module housing and the monocrystalline silicon solar panel.

[0023] In a possible implementation, a frosted PET layer is provided on the surface of the monocrystalline silicon solar panel.

[0024] The utility model also provides an ETC device, comprising: an ETC body and the above-mentioned light energy power supply module;

[0025] The ETC body is electrically connected to the solar power supply module.

[0026] The technical solution provided by the utility model has at least the following beneficial effects:

[0027] By using monocrystalline silicon solar panels and composite lithium-ion capacitors, the pollution and damage to environmental resources caused by the ETC charging solution can be avoided, making ETC charging more environmentally friendly; by using monocrystalline silicon solar panels, a larger charging current can be provided for the energy storage components under natural light both indoors and outdoors, effectively improving the charging effect of ETC charging; by using composite lithium-ion capacitors, the number of charge and discharge cycles and charging efficiency of the energy storage components can be effectively increased, providing a stable and reliable operating voltage for ETC. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of a side cross-sectional structure of a solar power module for ETC provided by an embodiment of the utility model;

[0029] Figure 2 A circuit schematic diagram of a solar charging management circuit provided in an embodiment of the utility model;

[0030] Figure 3 A schematic diagram of the structure of a monocrystalline silicon solar panel provided by an embodiment of the utility model;

[0031] Figure 4 A schematic diagram of the structure of a solar power supply module for ETC provided in an embodiment of the utility model from a bottom view;

[0032] In the attached figure, 11, monocrystalline silicon solar panel; 12, composite lithium-ion capacitor; 13, solar charging management circuit; 14, PCB board; 15, Type-C interface; 16, module housing; 17, frosted PET layer; 18, connecting column. DETAILED DESCRIPTION

[0033] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The embodiments are only used to explain the present invention and do not limit the protection scope of the present invention.

[0034] Please refer to Figure 1 , Figure 3 , Figure 4The utility model provides a light energy power module for ETC, comprising: a monocrystalline silicon solar panel 11, a composite lithium-ion capacitor 12, a solar charging management circuit 13, and a PCB board 14;

[0035] The front side of the monocrystalline silicon solar panel 11 is used to convert solar energy into electrical energy, and the back side thereof is fixedly connected to the back side of the PCB board 14;

[0036] The composite lithium-ion capacitor 12 and the solar charging management circuit 13 are arranged on the front side of the PCB board 14;

[0037] The power output terminal on the back of the monocrystalline silicon solar panel 11 is electrically connected to the photovoltaic voltage input terminal of the solar charging management circuit 13;

[0038] The positive and negative electrodes of the composite lithium-ion capacitor 12 are electrically connected to the energy storage end of the solar charging management circuit 13;

[0039] The voltage output terminal of the solar charging management circuit 13 is used to provide working voltage for the ETC body.

[0040] In this embodiment, the monocrystalline silicon solar panel 11 adopts a conventional solar panel made of monocrystalline silicon material, and can be laser cut to change the size and shape to meet the use requirements of different users. The composite lithium-ion capacitor 12 is a light energy environmentally friendly power source, which adopts a conventional model, has a long service life, can be recycled up to 50,000 times, is small in size, has a fast charging efficiency, and has an internal consumption of <5uA. It can provide a reliable and stable working voltage in high and low temperature environments of -40℃ to +60℃. The solar charging management circuit 13 can be implemented based on a conventional lithium-ion battery charging protection chip and a MOS tube. The PCB board 14 adopts a conventional model.

[0041] It should be pointed out that the composite lithium ion capacitor 12 is a new type of energy storage electronic component, which is between traditional capacitors and rechargeable batteries, and is particularly suitable for use in small current electronic equipment loads. The composite lithium ion capacitor 12 has the advantages of small size, high power density, many charge and discharge cycles, no combustion or explosion in short circuit, and low self-discharge.

[0042] In specific implementation, there is no need to modify the ETC power supply line. It is only necessary to embed the solar power module into a suitable housing and expose the front of the monocrystalline silicon solar panel 11 to receive natural light. The monocrystalline silicon solar panel 11 can output a continuous large current to charge the composite lithium-ion capacitor 12 quickly and efficiently. Figure 3 The structure shown. Figure 3The upper middle picture shows the front of the monocrystalline silicon solar panel 11, which can be composed of a plurality of rectangular cells regularly arranged on a PCB to form a photoelectric conversion device layer. An EVA layer can also be provided on the photoelectric conversion device layer, and a transparent PET can be provided on the EVA layer. The transparent PET can adopt a frosted design. Figure 3 The lower middle figure shows the back of the monocrystalline silicon solar panel 11, where the PCB positive and negative pad interfaces are set as the power output terminals, which are used to convert the photoelectric conversion device layer into electrical energy for external output. The specific size of the monocrystalline silicon solar panel 11 can be adjusted according to actual needs. The module housing 16 is connected to the monocrystalline silicon solar panel 11 through a connecting column 18, and the connecting column 18 can be a conventional connecting device, such as a fixing screw or directly fixed by soldering.

[0043] The light power module in the utility model can replace the 3.2-3.8V lithium battery and solar power supply scheme in any ETC non-stop device. Its light output current is larger than the charging current of the amorphous silicon solar panel used in similar ETCs, compatible with indoor and outdoor weak light environments, and has good charging performance. It can perfectly replace the amorphous silicon glass-sealed micro-current charging scheme used in all ETC devices on the current market. At the same time, the monocrystalline silicon solar panel 11 and the composite lithium-ion capacitor 12 will not produce pollutants, avoiding pollution and damage to environmental resources, complying with national environmental protection policies, and having certain social significance.

[0044] In one possible implementation, Figure 2 The solar charging management circuit 13 includes a charging protection chip U1, an NMOS tube chip U2, a first resistor R1, a second resistor R2, a filter capacitor C, a first diode D1, a first interface P1 as the photovoltaic voltage input end, and a second interface P2 as the voltage output end;

[0045] The VDD end of the charging protection chip U1 is electrically connected to the first end of the first resistor R1 and the first end of the filter capacitor C, respectively; the VSS end thereof is electrically connected to the negative electrode of the composite lithium-ion capacitor 12, the second end of the filter capacitor C, and the first source S1 of the NMOS chip U2, respectively; the DO end thereof is electrically connected to the first gate G1 of the NMOS chip U2, the CO end thereof is electrically connected to the second gate G2 of the NMOS chip U2, and the VM end thereof is electrically connected to the first end of the second resistor R2;

[0046] The first drain D1 of the NMOS chip U2 is electrically connected to its second drain D2, and the second source S2 is electrically connected to the second end of the second resistor R2, the negative electrode of the first interface P1, and the negative electrode of the second interface P2 respectively;

[0047] The second end of the first resistor R1 is electrically connected to the positive electrode of the composite lithium-ion capacitor 12, the negative electrode of the first diode D1, and the positive electrode of the second interface P2 respectively;

[0048] An anode of the first diode D1 is electrically connected to an anode of the first port P1 .

[0049] In this embodiment, the charging protection chip U1 can adopt a conventional lithium battery charging protection chip (such as DW01A). The NMOS tube chip U2 adopts a conventional dual NMOS tube chip (such as 8205A). The first resistor R1 and the second resistor R2 both adopt conventional resistors, the resistance value of the first resistor R1 can be set to 100R, and the resistance value of the second resistor R2 can be set to 1K. The filter capacitor C adopts a conventional capacitor, and the specific specification can be 0.1uF / 16V. The first diode D1 adopts a conventional diode. The first interface P1 and the second interface P2 are both conventional interfaces. The composite lithium ion capacitor 12 can adopt a specification of 4V / 250F.

[0050] In the specific implementation, the first interface P1 is electrically connected to the PCB positive and negative pad interfaces of the monocrystalline silicon solar panel 11. The voltage from the monocrystalline silicon solar panel 11 is output through the PCB positive and negative pad interfaces. The PCB positive and negative pad interfaces form a charging circuit through the first diode D1, NMOS tube chip U2, charging protection chip U1, composite lithium-ion capacitor 12, first resistor R1, second resistor R2, and filter capacitor C, which has perfect protection functions such as over-discharge, over-charge, over-current, and short circuit. The second interface P2 is connected to the power supply end of the ETC body to provide working voltage for the ETC body.

[0051] In a possible implementation, the solar charging management circuit 13 further includes a third interface P3 and a second diode D2 for standby charging;

[0052] The anode of the third interface P3 is electrically connected to the anode of the second diode D2, and the cathode of the third interface P3 is electrically connected to the second end of the second resistor R2;

[0053] The cathode of the second diode D2 is electrically connected to the anode of the composite lithium-ion capacitor 12 .

[0054] In a possible implementation, the third interface P3 is connected to a Type-C interface 15 .

[0055] In this embodiment, the third interface P3 is a conventional interface, and the second diode D2 is a conventional diode. In specific implementation, the third interface P3 can be used as a 5V input standby charging interface, and can be connected to a user's mobile phone charging adapter through the Type-C interface 15. The third interface P3 forms a charging circuit through the second diode D2, NMOS tube chip U2, charging protection chip U1, composite lithium-ion capacitor 12, first resistor R1, second resistor R2, and filter capacitor C.

[0056] In a possible implementation, it further includes a module housing 16;

[0057] The opening side of the module housing 16 is disposed at the back edge of the monocrystalline silicon solar panel 11;

[0058] The PCB board 14 is located in a protective cavity formed by the module housing 16 and the monocrystalline silicon solar panel 11 .

[0059] In this embodiment, the module housing 16 may be made of conventional plastic packaging materials, and a through hole may be provided on the module housing 16 so that the solar charging management circuit 13 can be connected to the outside world through a wire.

[0060] In a possible implementation, a frosted PET layer 17 is disposed on the surface of the monocrystalline silicon solar panel 11 .

[0061] In this embodiment, the frosted PET layer 17 is a frosted transparent PET.

[0062] The utility model also provides an ETC device, comprising: an ETC body and the above-mentioned light energy power supply module;

[0063] The ETC body is electrically connected to the solar power supply module.

[0064] In this embodiment, the power interface of the ETC body is directly electrically connected to the voltage output terminal of the solar power module. In the specific implementation, if the ETC body is a semi-finished product in the production process, the solar power module can be directly used as the power module of the ETC body; if the ETC body is a finished product using an old charging module, the old charging module can be directly replaced by the solar power module. When the ETC body is connected to the solar power module for use, there is no need to change the original circuit of the ETC body, and the entire implementation process is simple and convenient.

[0065] The above embodiments should not limit the present invention in any way, and any technical solutions obtained by equivalent replacement or equivalent conversion shall fall within the protection scope of the present invention.

Claims

1. A solar power module for ETC, characterized in that: include: Monocrystalline silicon solar panels, composite lithium-ion capacitors, solar charging management circuits, PCB boards; The front side of the monocrystalline silicon solar panel is used to convert solar energy into electrical energy, and the back side thereof is fixedly connected to the back side of the PCB board; The composite lithium-ion capacitor and the solar charging management circuit are arranged on the front side of the PCB board; The power output terminal on the back side of the monocrystalline silicon solar panel is electrically connected to the photovoltaic voltage input terminal of the solar charging management circuit; The positive and negative electrodes of the composite lithium-ion capacitor are electrically connected to the energy storage end of the solar charging management circuit; The voltage output end of the solar charging management circuit is used to provide working voltage for the ETC body.

2. The solar power module according to claim 1, characterized in that: The solar charging management circuit includes a charging protection chip, an NMOS tube chip, a first resistor, a second resistor, a filter capacitor, a first diode, a first interface as the photovoltaic voltage input end, and a second interface as the voltage output end; The VDD end of the charging protection chip is electrically connected to the first end of the first resistor and the first end of the filter capacitor respectively, the VSS end thereof is electrically connected to the negative electrode of the composite lithium-ion capacitor, the second end of the filter capacitor, and the first source electrode of the NMOS chip respectively, the DO end thereof is electrically connected to the first gate electrode of the NMOS chip, the CO end thereof is electrically connected to the second gate electrode of the NMOS chip, and the VM end thereof is electrically connected to the first end of the second resistor; The first drain of the NMOS chip is electrically connected to its second drain, and the second source of the NMOS chip is electrically connected to the second end of the second resistor, the negative electrode of the first interface, and the negative electrode of the second interface respectively; The second end of the first resistor is electrically connected to the positive electrode of the composite lithium-ion capacitor, the negative electrode of the first diode, and the positive electrode of the second interface respectively; An anode of the first diode is electrically connected to an anode of the first interface.

3. The solar power module according to claim 2, characterized in that: The solar charging management circuit also includes a third interface and a second diode for standby charging; The anode of the third interface is electrically connected to the anode of the second diode, and the cathode of the third interface is electrically connected to the second end of the second resistor; The cathode of the second diode is electrically connected to the anode of the composite lithium-ion capacitor.

4. The solar power module according to claim 3, characterized in that: The third interface is connected to a Type-C interface.

5. The solar power module according to claim 1, characterized in that: Also included is a module housing; The opening side of the module housing is arranged at the back edge of the monocrystalline silicon solar panel; The PCB board is located in a protective cavity formed by the module housing and the monocrystalline silicon solar panel.

6. The solar power module according to claim 1, characterized in that: The surface of the monocrystalline silicon solar panel is provided with a frosted PET layer.

7. An ETC device, characterized in that: include: An ETC body and a solar power module as claimed in claim 1; The ETC body is electrically connected to the solar power supply module.

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