CN204615887U - Solar and thermoelectric power generation smart phone case - Google Patents

Abstract

The utility model relates to a kind of solar energy and thermo-electric generation smart mobile phone shell, comprise flip-shell housing and be fixed on the solar panel in flip-shell housing, solar charging circuit, solar energy film, storage battery, discharge circuit, external power charging circuit, thermo-electric generation sheet and the temperature difference charging circuit be electrically connected with thermo-electric generation sheet, solar energy film is in parallel with solar panel, the charging end of storage battery connects solar charging circuit respectively by wire, temperature difference charging circuit and external power charging circuit, the discharge end of storage battery connects discharge circuit by wire, flip-shell housing is provided with microcontroller, switch module and electric power detection module, and microcontroller is by electric power detection model calling storage battery, and microcontroller is electrically connected with solar charging circuit and temperature difference charging circuit by switch module, this mobile phone shell integrates solar power generation and thermo-electric generation, can realize electricity and store and display, and capacity usage ratio is high.

Description

Solar and thermoelectric power generation smart phone case

technical field

The utility model relates to a mobile phone case, in particular to a smart mobile phone case capable of generating electricity, which belongs to the field of mobile phone accessories.

Background technique

At present, smart phones are widely used as necessary communication and entertainment devices in people's daily work and life. Due to the large screen, WIFI, GPS, Bluetooth and other multi-functional hardware configurations of smart phones, their power consumption is high and their standby time is short. , The built-in battery capacity of the smart phone cannot meet the long-term power supply, and the built-in battery needs to be charged frequently. Therefore, people need a kind of portable mobile charging device under the environment that does not have mains power such as outdoor travel, and then mobile charging treasure has been subjected to people's favor. However, the mobile power bank needs to be connected to the mains to charge before use, and then charge the smartphone. Moreover, its battery capacity is limited after all, and in an environment without mains power, it can only temporarily replenish the power of the mobile phone. Therefore, smart phones need to seek an environmentally friendly charging method and equipment that can provide sustainable energy.

Since the mobile phone case is carried as a necessary protective accessory of the mobile phone, the Chinese invention patent "solar smart phone case" (application number: 201310605114.4) and the utility model patent "a portable solar mobile phone charger" (application number: CN201320658370) are both A mobile phone case with solar charging function is proposed. The mobile phone case and power bank are combined into one, which effectively solves the problem of portable charging for mobile phones in an environmentally friendly manner. However, since this type of mobile phone case does not have an energy storage element, it cannot store charges, so that the mobile phone battery cannot store the light energy incident on the surface of the mobile phone case when it does not need to be charged or is fully charged, resulting in a waste of energy. In addition, solar energy is affected by light, and this kind of solar smart phone case cannot receive enough solar energy to charge the battery of the mobile phone under the condition of insufficient light. In addition, the mobile phone case does not have the storage power display function and charging management function, nor does it have an external interface for charging other external devices.

The Chinese invention patent "solar 4G environmental protection mobile phone" (application number: CN201110391578) discloses a mobile phone with a solar charging/control function in the shell. Electric charging and mobile power charging), this solar mobile phone case needs to change the structure of the mobile phone itself, and does not have the function of external interface to supply peripherals such as other mobile phones to charge, and its practicability and versatility are not strong.

Since the photoelectric conversion efficiency is only about 20%, the solar power absorbed by the solar power generation components of mobile phone shells that use solar energy to generate electricity is only a small part, and the rest is converted into heat energy, and the smart phone generates a lot of heat during use. Improving the use efficiency of solar energy and effectively utilizing the heat generated by the mobile phone itself has become an urgent problem to be solved for the power generation mobile phone case.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a smart phone case integrating solar power generation and thermoelectric power generation. The mobile phone case can realize power storage and display, and has a high energy utilization rate.

The technical solution adopted to realize the purpose of the utility model is, a solar energy and thermoelectric power generation smart phone case, at least including a flip-type casing composed of a cover plate, a sheath and a side connection part, and fixed in the flip-type casing and The solar panel and solar charging circuit are electrically connected in turn by wires. The flip-shaped housing is equipped with a solar film, a storage battery, a discharge circuit, a thermoelectric power generation sheet and a thermoelectric charging circuit electrically connected to the thermoelectric power generation sheet. The solar film and the solar battery panel Parallel connection constitutes a solar power generation group, the charging end of the storage battery is respectively connected to the solar charging circuit and the temperature difference charging circuit through wires, and the discharge end of the storage battery is connected to the discharge circuit through wires.

The clamshell housing is provided with a control unit, the control unit includes a microcontroller MCU, a switch module and a power detection module for detecting battery power, the power detection module is connected to the input interface A of the microcontroller MCU, and the microcontroller MCU passes the power The detection module is connected to the storage battery, the switch module is connected to the output interface C of the microcontroller MCU, and the microcontroller MCU is electrically connected to the solar charging circuit and the temperature difference charging circuit through the switch module.

An electronic ink screen is provided on the outer surface of the side connection part of the clamshell case, and a display drive module is provided in the sheath of the clamshell shell, and the display drive module is connected to the output interface D of the microcontroller MCU, and the e-ink screen passes through the display The driving module is connected with the microcontroller MCU.

Both the output interface C and the switch module are provided with two, and the microcontroller MCU is respectively connected to the solar charging circuit and the temperature difference charging circuit through the two switch modules.

The solar film is located in the cover plate of the flip-type housing, and the solar battery panel, storage battery, discharge circuit, solar charging circuit, temperature difference charging circuit and control unit are all located in the sheath of the flip-type housing.

The sheath of the clamshell housing is provided with an external power supply charging circuit for charging the battery with commercial power, and the two ends of the external power supply charging circuit are respectively connected to the charging terminal of the battery and the input interface B of the microcontroller MCU.

The end of the clamshell housing is provided with a coaxial power output interface electrically connected to the external power supply charging circuit, and a coaxial charging interface, mini USB interface and USB interface electrically connected to the discharge circuit.

The thermoelectric generation sheet is provided with two pieces, which are respectively a cover thermoelectric generation sheet located in the cover plate and a sheath thermoelectric generation sheet located in the sheath. The sheath thermoelectric generation sheet is located between the solar cell panel and the mobile phone casing. The cover plate The thermoelectric power generation sheet is located between the solar film and the mobile phone screen.

The end of the clamshell housing is provided with a storage slot, and a charging connector matching the charging interface of the mobile phone is provided in the storage slot. The charging connector is connected to the discharge circuit through a wire, and a through hole for wiring is provided at the bottom of the storage tank. The wire is located in the through hole and can slide in the through hole. There are more than two charging connectors, the specifications of each charging connector are different, and the charging connectors are connected in parallel to form a charging connector group.

Both the cover plate and the sheath of the clamshell housing are provided with magnetic buckles and matching magnetic sheets, and the positions of the magnetic buckles on the cover plate and the sheath are different.

It can be seen from the above technical solution that the smart phone case provided by the utility model integrates solar power generation and thermoelectric power generation, not only can use the solar energy to generate electric energy through the photoelectric effect, but also can fully utilize the solar energy to generate heat by using the thermoelectric effect and convert it into electrical energy. The built-in battery is used to store electrical energy for use when needed.

The mobile phone case uses the microcontroller MCU to perform charging management and drive power display. The power detection module is used to detect the battery power. When the microcontroller MCU judges that the battery power is low, it can automatically start the solar charging circuit and temperature difference through the triode switch module. The charging circuit charges the battery, and the sheath of the clamshell case is equipped with an external power supply charging circuit for charging the battery with mains power. When the sunlight is insufficient, the battery inside the mobile phone case can also be charged through the external mains power, which enriches this The charging method of solar-like charging mobile phone case also expands its application range.

The two thermoelectric power generation sheets are respectively located between the two solar power generation groups (solar panels and solar film) and the mobile phone. The thermoelectric power generation sheet has a large contact area with the heat source; there are two switch modules, and the two switch modules control solar charging respectively. The on-off of the circuit and the temperature difference charging circuit can use the heat converted by the solar power generation group to generate electricity during the day, and can use the heat generated by the mobile phone to generate electricity at night and when the light is insufficient.

The mobile phone case also has a variety of external interfaces and charging connectors to charge other external devices, which enhances the practicality and versatility of the mobile phone case. In addition to the charging management function, the mobile phone case is equipped with a microcontroller MCU, which is also equipped with a display driver module and an electronic ink screen to display battery power information, so that users can intuitively understand the internal power information of the smart charging mobile phone case, and remind users when the power is low. In the lower case, actively place the mobile phone case in a sunny environment, so that it can use solar energy to charge the battery, which is environmentally friendly and energy-saving. The clamshell design and the magnetic buckle on the structure of the mobile phone case are conducive to hanging on the backpack when outdoors; the above-mentioned structure makes the mobile phone case have the characteristics of convenient use, environmental protection and energy saving, versatility and strong practicability.

Compared with the prior art, the solar and thermoelectric smart phone case provided by the utility model has the following advantages:

(1) The smart phone case provided by the utility model provides three charging methods. On the basis of the existing solar power generation circuit, a thermoelectric power generation circuit and an external power supply charging circuit are added, and the thermoelectric power generation sheet is used to absorb and transform the solar panel and solar film. The heat is converted into electrical energy through thermal energy and stored inside the battery to improve the photoelectric conversion efficiency. The thermoelectric power generation sheet can also convert the heat generated by the mobile phone into electrical energy, so the energy utilization rate is high, and the thermoelectric power generation sheet also acts as a solar panel. , solar film and the cooling effect of each circuit module inside the mobile phone;

(2) The built-in battery of the smart phone case provided by the utility model is used to store electric power, so as to avoid limited use of the mobile phone case in rainy days or when the sunlight is insufficient;

(3) The cover plate and the sheath of the smart phone case are equipped with thermoelectric power generation sheets and solar power generation elements (solar panels and solar film), and the electric power converted by the solar power generation elements is increased by increasing the illuminated area;

(4) The shell of the smart phone case keeps the shape of the commercially available mobile phone shells unchanged, so it does not affect the aesthetics of use. Double rows of magnetic buckles are arranged on the shell, which is convenient for fixing the shell and easy to use.

Description of drawings

Fig. 1 is a structural schematic diagram of a smart phone case for solar energy and thermoelectric power generation provided by the utility model.

Figure 2 is a top view of the sheath.

Figure 3 is a control flow diagram of the microcontroller MCU.

Figure 4 is a circuit block diagram of a smart phone case for solar energy and thermoelectric power generation.

FIG. 5 is a schematic circuit diagram of the solar and thermoelectric power generation smart phone case of Embodiment 1. FIG.

Fig. 6 is a schematic circuit diagram of the solar and thermoelectric power generation smart phone case of the second embodiment.

Among them, 1-cover plate, 2-sheath, 3-solar panel, 4-solar film, 5-microcontroller MCU, 6-charging connector group, 7-cover plate thermoelectric power generation sheet, 8-accommodating slot, 9 -Magnetic buckle, 10-E-ink screen, 11-Sheath thermoelectric generator, 12-Battery, 13-mini USB interface, 14-USB interface, 15-Coaxial power output interface, 16-Coaxial charging interface, 17 - solar charging circuit, 18 - temperature difference charging circuit, 19 - power detection module, 20 - display driver module, 21 - external power supply charging circuit, 22 - switch module, 23 - switch module A, 24 - switch module B.

Detailed ways

The utility model is described in detail below in conjunction with the accompanying drawings and embodiments, and the content of the utility model is not limited to the following embodiments.

Embodiment 1: The solar energy and thermoelectric power generation smart phone shell provided by the utility model has a structure as shown in Figure 1 and Figure 2, including a clamshell shell composed of a cover plate 1, a sheath 2 and a side connection part, the cover plate Both the cover and the sheath are provided with a magnetic buckle 9 and a matching magnetic sheet, the positions of the magnetic buckles on the cover plate and the sheath are different, and the clamshell housing is provided with a solar battery panel 3 and a solar charging circuit 17 , a solar film 4, a control unit, a storage battery 12, an external power supply charging circuit 21 for charging the storage battery, an electronic ink screen 10, a discharge circuit, two thermoelectric generating sheets and a thermoelectric charging circuit 18 electrically connected to the thermoelectric generating sheet, electronic The ink screen 10 is installed in the side connection part for displaying the current battery power; the top of the clamshell housing is provided with a coaxial charging interface 16, a miniUSB interface 13 and a USB interface 14 electrically connected to the discharge circuit, and is charged with an external power supply. The coaxial power output interface 15 electrically connected to the circuit; the bottom end of the clamshell housing is provided with an accommodation slot 8, and more than two charging connectors matching the charging interface of the mobile phone are arranged in the accommodation slot, and the specifications of each charging connector are different , the charging connectors are connected in parallel to each other to form a charging connector group 6, the charging connector group 6 is connected to the discharge circuit through wires, the bottom of the receiving tank is provided with a through hole for wiring, and the wire is located in the through hole and can slide in the through hole;

The solar panel 3 is installed on the outer surface of the sheath 2, and the solar film 4 is installed on the outer surface of the cover plate 1. The above two solar power generation groups are used to convert sunlight or light into electrical energy. The solar panel 3 and the solar film 4 Parallel connection constitutes a solar power generation group, and the solar power generation group is connected to the solar charging circuit 17;

The two thermoelectric power generation pieces are the cover thermoelectric power generation piece 7 and the sheath thermoelectric power generation piece 11 respectively. The cover thermoelectric power generation piece 7 is installed in the cover plate and is located between the solar film and the mobile phone screen, and the sheath thermoelectric power generation piece 11 is installed on the In the sheath and between the solar panel and the mobile phone shell, the two thermoelectric power generation sheets convert the heat absorbed and transformed by the solar module and the heat generated by the mobile phone itself into current, and the two thermoelectric power generation sheets are connected in parallel to the thermoelectric charging circuit 18 ;

Both the solar charging circuit 17 and the temperature difference charging circuit 18 are installed in the sheath 2, and are respectively used to supply the electric energy converted by the solar panel and the electric energy converted by the thermoelectric generation sheet to the battery 12, and the battery 12 is installed in the sheath 2 for use in It is used to store the electricity converted by two solar power generation groups and two thermoelectric power generation sheets and supply power to mobile phones/peripheral small electrical equipment. The discharge end of the discharge circuit is connected to the discharge circuit through a wire;

The control unit is installed in the sheath 2 and is used for battery charge/discharge management, including a microcontroller MCU5, a switch module 22, a power detection module 19 for detecting battery power, and a display drive module 20. The solar and thermoelectric power generation smart phone The internal circuit of the shell is shown in Figure 4 and Figure 5, the power detection module is connected to the input interface A of the microcontroller MCU, the microcontroller MCU is connected to the battery through the power detection module, and the external power supply charging circuit is connected to the input interface B of the microcontroller MCU , the switch module is connected to the output interface C of the microcontroller MCU, the microcontroller MCU is electrically connected to the solar charging circuit and the temperature difference charging circuit through the switch module, and the triode switch module controls the simultaneous on-off of the solar charging circuit and the temperature difference charging circuit to display the connection The output interface D of the microcontroller MCU.

Embodiment 2: The solar energy and thermoelectric power generation smart phone shell provided by the utility model has a structure as shown in Figure 1 and Figure 2, including a clamshell shell consisting of a cover plate 1, a sheath 2 and a side connection part, the cover plate Both the cover and the sheath are provided with a magnetic buckle 9 and a matching magnetic sheet, the positions of the magnetic buckles on the cover plate and the sheath are different, and the clamshell housing is provided with a solar battery panel 3 and a solar charging circuit 17 , a solar film 4, a control unit, a storage battery 12, an external power supply charging circuit 21 for charging the storage battery, an electronic ink screen 10, a discharge circuit, two thermoelectric generating sheets and a thermoelectric charging circuit 18 electrically connected to the thermoelectric generating sheet, electronic The ink screen 10 is installed in the side connection part for displaying the current battery power; the top of the clamshell housing is provided with a coaxial charging interface 16, a miniUSB interface 13 and a USB interface 14 electrically connected to the discharge circuit, and is charged with an external power supply. The coaxial power output interface 15 electrically connected to the circuit; the bottom end of the clamshell housing is provided with an accommodation slot 8, and more than two charging connectors matching the charging interface of the mobile phone are arranged in the accommodation slot, and the specifications of each charging connector are different , the charging connectors are connected in parallel to each other to form a charging connector group 6, the charging connector group 6 is connected to the discharge circuit through wires, the bottom of the receiving tank is provided with a through hole for wiring, and the wire is located in the through hole and can slide in the through hole;

The solar panel 3 is installed on the outer surface of the sheath 2, and the solar film 4 is installed on the outer surface of the cover plate 1. The above two solar power generation groups are used to convert sunlight or light into electrical energy. The solar panel 3 and the solar film 4 Parallel connection constitutes a solar power generation group, and the solar power generation group is connected to the solar charging circuit 17;

The two thermoelectric power generation pieces are the cover thermoelectric power generation piece 7 and the sheath thermoelectric power generation piece 11 respectively. The cover thermoelectric power generation piece 7 is installed in the cover plate and is located between the solar film and the mobile phone screen, and the sheath thermoelectric power generation piece 11 is installed on the In the sheath and between the solar panel and the mobile phone shell, the two thermoelectric power generation sheets convert the heat absorbed and transformed by the solar module and the heat generated by the mobile phone itself into current, and the two thermoelectric power generation sheets are connected in parallel to the thermoelectric charging circuit 18 ;

Both the solar charging circuit 17 and the temperature difference charging circuit 18 are installed in the sheath 2, and are respectively used to supply the electric energy converted by the solar panel and the electric energy converted by the thermoelectric generation sheet to the battery 12, and the battery 12 is installed in the sheath 2 for use in It is used to store the electricity converted by two solar power generation groups and two thermoelectric power generation sheets and supply power to mobile phones/peripheral small electrical equipment. The discharge end of the discharge circuit is connected to the discharge circuit through a wire;

The control unit is installed in the sheath 2 and is used for battery charge/discharge management, including microcontroller MCU5, switch module A23, switch module B24, power detection module 19 for detecting battery power, and display drive module 20. The solar and The internal circuit of the thermoelectric power generation smart phone case is shown in Figure 4 and Figure 6. The power detection module is connected to the input interface A of the microcontroller MCU, the microcontroller MCU is connected to the battery through the power detection module, and the external power supply charging circuit is connected to the microcontroller MCU The input interface B, the switch module A23 and the switch module B24 are respectively connected to the output interface C1 and output interface C2 of the microcontroller MCU, and the two triode switch modules respectively control the on-off of the solar charging circuit and the temperature difference charging circuit, and the microcontroller MCU passes The two switch modules are electrically connected to the solar charging circuit and the temperature difference charging circuit respectively, and the display driving module is connected to the output interface D of the microcontroller MCU.

Write the control program in the microcontroller MCU of the solar energy and thermoelectric power generation smart phone shell provided by the utility model, and the intelligent management of battery charge/discharge can be realized. The control process is shown in Figure 3, using two I/O ports , that is, the analog input port A and the digital input port B are used to respectively detect the voltage state of the storage battery and the conduction or disconnection state of the charging circuit of the external power supply. Taking Embodiment 1 as an example, the control flow is shown in Figure 3. In the main program run by the controller MCU, a power management thread is started to cyclically detect the analog voltage data of the battery obtained by the analog port A port, and after the analog-to-digital conversion, it is judged that if the power of the battery is lower than 20% of the maximum power and the port B is in high power In the flat state (the external charging circuit is disconnected), by setting the digital output port C high, the switch module composed of triodes at the rear end is turned on, so that the solar charging circuit and the temperature difference charging circuit are turned on, and the battery enters the charging state. If the charging circuit of the external power supply is in the on state, the digital input port B is set low; When the power supply charging circuit is in the conduction state, the digital port C is pulled down, so that the charging circuit control circuit composed of the triode at the rear end is cut off, so that the solar charging circuit and the temperature difference charging circuit are disconnected.

Claims (10)

1. A smart phone case for solar energy and thermoelectric power generation, at least comprising a clamshell shell made of a cover plate, a sheath, and a side connector, and a solar cell panel and a solar cell panel that are fixed in the clamshell shell and are electrically connected in turn by wires The solar charging circuit is characterized in that: the clamshell housing is provided with a solar film, a storage battery, a discharge circuit, a thermoelectric power generation sheet and a thermoelectric charging circuit electrically connected to the thermoelectric power generation sheet, and the solar film and the solar panel are connected in parallel to form a solar power generation group. The charging end of the storage battery is respectively connected to the solar charging circuit and the temperature difference charging circuit through wires, and the discharge end of the storage battery is connected to the discharging circuit through wires. 2. The solar energy and thermoelectric power generation smart phone case according to claim 1, characterized in that: a control unit is provided on the clamshell case, and the control unit includes a microcontroller MCU, a switch module and a power detection unit for detecting battery power Module, the power detection module is connected to the input interface A of the microcontroller MCU, the microcontroller MCU is connected to the battery through the power detection module, the switch module is connected to the output interface C of the microcontroller MCU, and the microcontroller MCU is connected to the solar charging circuit and the solar charging circuit through the switch module The temperature difference charging circuit is electrically connected. 3. The smart phone case for solar energy and thermoelectric power generation according to claim 2, characterized in that: an electronic ink screen is provided on the outer surface of the side connection part of the flip-type casing, and a display screen is provided in the sheath of the flip-type casing. The driving module, the display driving module is connected to the output interface D of the microcontroller MCU, and the electronic ink screen is connected to the microcontroller MCU through the display driving module. 4. The solar energy and thermoelectric power generation smart phone shell according to claim 2, characterized in that: the output interface C and the switch module are provided with two, and the microcontroller MCU is connected to the solar charging circuit and the switch module respectively through the two switch modules. Temperature difference charging circuit. 5. The solar energy and thermoelectric power generation smart phone case according to claim 2, characterized in that: the solar film is located in the cover plate of the flip-type housing, and the solar panel, storage battery, discharge circuit, solar charging circuit, temperature difference charging circuit and The control units are located in a sheath of the clamshell housing. 6. The smart phone case for solar energy and thermoelectric power generation according to claim 2, characterized in that: an external power charging circuit for charging the mains power of the storage battery is provided on the sheath of the clamshell housing, and the two ends of the external power charging circuit Connect the charging terminal of the battery to the input interface B of the microcontroller MCU respectively. 7. The solar energy and thermoelectric power generation smart phone case according to claim 6, characterized in that: the end of the clamshell case is provided with a coaxial power output interface electrically connected to an external power supply charging circuit, and is electrically connected to a discharge circuit The coaxial charging interface, mini USB interface and USB interface. 8. The solar energy and thermoelectric power generation smart phone case according to claim 1, characterized in that: the thermoelectric power generation piece is provided with two pieces, which are respectively the cover plate thermoelectric power generation piece located in the cover plate and the sheath located in the sheath The thermoelectric generation sheet, the sheath thermoelectric generation sheet is located between the solar panel and the mobile phone casing, and the cover thermoelectric generation sheet is located between the solar film and the mobile phone screen. 9. The smart phone case for solar energy and thermoelectric power generation according to claim 1, characterized in that: an accommodation groove is provided at the end of the flip-type housing, and a charging connector matching the charging interface of the mobile phone is arranged in the accommodation groove, and the charging The connector is connected to the discharge circuit through wires. There is a through hole for wiring at the bottom of the storage tank. The wire is located in the through hole and can slide in the through hole. There are more than two charging connectors, and the specifications of each charging connector are different. , the charging connectors are connected in parallel to each other to form a charging connector group. 10. The smart phone case for solar energy and thermoelectric power generation according to claim 1, characterized in that: the cover plate and the sheath of the flip-type housing are provided with magnetic buckles and matching magnetic sheets, the cover plate and the protective cover The location of the magnetic clasp on the cover is different.