Light energy hygrothermograph based on indoor Internet of Things

Abstract

The utility model discloses an optical energy hygrothermograph based on indoor Internet of Things, which belongs to the technical field of hygrothermographs and is characterized by comprising a broken code display screen, an energy collection module, a lithium battery, a control circuit module and a support frame on the back of a box body, the control circuit module comprises a charging management module, a micro-power consumption central controller module with Bluetooth, a Bluetooth antenna module, a power management module, a temperature and humidity detection module and a segment code display screen display module, and is connected with the indoor Internet of Things through the Bluetooth antenna module; according to the energy collection module, an energy collection circuit is printed and manufactured on back paint on the backlight face of a solar cell piece, an indoor solar cell directly charges a lithium battery, and meanwhile an integrated solar cell charging management module is adopted, so that the structure is more compact and small, and use is more convenient and reliable.

Description

Technical Field

[0001] This utility model relates to a temperature and humidity meter, and more particularly to a solar-powered temperature and humidity meter based on the Internet of Things for indoor use, which belongs to the field of temperature and humidity measurement technology. Background Technology

[0002] With the development of technology, various electronic products and appliances have provided people with diverse and comfortable living and working environments. Furthermore, they have further developed into intelligent interconnection with each other. Among them, thermometers and hygrometers, as sensors for monitoring indoor temperature and humidity, transmit data to the cloud to adjust the temperature and humidity of indoor appliances, achieving a unified smart indoor space that combines energy saving, environmental protection, and comfort.

[0003] Indoors, low-power Bluetooth is used to connect to the cloud. Lithium batteries or supercapacitors are used as energy storage devices depending on the detection frequency and overall power consumption. Currently, the main way to charge the energy storage devices is through an external power source, which makes charging inconvenient. Summary of the Invention

[0004] To achieve the above objectives, and addressing the inconvenience of charging energy storage devices in thermometers and hygrometers, the following specific technical solution is adopted: A photoelectric thermometer and hygrometer based on indoor IoT, characterized in that: a box consisting of a front frame and a rear cover fastened together by snaps houses a code display screen, an energy harvesting module, an energy storage device, a control circuit module, and a support frame on the back of the box; the energy harvesting module (also known as a photoelectric processor) includes solar cells (also known as photovoltaic cells) and an energy harvesting chip, resistor, inductor, and capacitor integrated on the back of the solar cells; a code display screen and a window for opening the solar cells are provided on the front of the front frame, and a switch button is provided on the top of the front frame, corresponding to a touch switch on the control circuit module; a slot or adhesive groove is provided in the middle of the outer side of the rear cover to connect to the support frame; a charging port is also provided on the rear cover corresponding to the TYPE-C charging port on the control circuit module for external power charging; the control circuit module and lithium battery are located behind the code display screen, with the lithium battery soldered to the control circuit module; an airflow inlet and an airflow outlet are provided on the top of the front frame and the rear cover, respectively, corresponding to the positions of the temperature and humidity sensors on the control circuit module.

[0005] The energy harvesting module is fabricated by printing the energy harvesting circuit on the back coating of the back side of the solar cell. The energy harvesting circuit is covered by a back protective layer with soldering windows. Energy harvesting chips, resistors, inductors, capacitors, connectors, etc. are directly surface-mounted or soldered onto the control circuit and integrated with the solar cell through the soldering windows. Alternatively, energy harvesting chips, resistors, inductors, capacitors, connectors, etc. are surface-mounted or soldered onto the energy harvesting circuit board and integrated with the solar cell through a frame.

[0006] The energy harvesting module includes MPPT control, charging output, and voltage regulation output.

[0007] The outer sides of the opening window of the front frame are beveled with an angle of 30° to 45° to expand the visual range.

[0008] The inner surface of the front frame is equipped with a code display screen and a solar cell limiting plate, which serve to limit and reinforce the device. There are also screw holes for fixing the control circuit module on the inner surface.

[0009] The support frame consists of angled flaps, with the angle ranging from 30° to 60°.

[0010] Protective pads are provided on the back of the code breakage display and the solar cells to prevent the fixed control circuit module and energy storage device from pressing directly on the code breakage display, which could cause damage to the display.

[0011] The inner surface of the back cover has vertical ribs that press down on the protective pads on the back of the solar cells, and limiting plates that limit the energy storage devices.

[0012] The support piece is recessed on the outside of the back cover, and is bonded to the back cover using double-sided adhesive.

[0013] The solar cells are amorphous silicon cells or perovskite cells with glass substrates, the energy storage devices are lithium batteries or supercapacitors, and the protective pads are EVA cotton.

[0014] The control circuit module includes a power management module, a Bluetooth-enabled low-power central controller module, a Bluetooth antenna module, a temperature and humidity detection module, and a segment display module. The solar cells are directly connected to the energy storage device via a connector through the Bluetooth-enabled low-power central controller module. The segment display is connected to the segment display module via conductive adhesive strips. The energy storage device supplies power to the Bluetooth-enabled low-power central controller module through the power management module. The temperature and humidity detection module outputs the detected temperature and humidity data to the Bluetooth-enabled low-power central controller module. The Bluetooth-enabled low-power central controller module displays the temperature and humidity on the segment display screen through the segment display module. The Bluetooth-enabled low-power central controller module periodically transmits the data to the cloud via the Bluetooth antenna module.

[0015] The positive and beneficial effects of this utility model are as follows: by utilizing sufficient indoor lighting sources and directly charging the lithium battery with indoor solar cells, and by adopting an integrated solar cell charging management module, the structure becomes more compact and small, and the use becomes more convenient and reliable. Attached Figure Description

[0016] Figure 1 : A schematic diagram of the overall structure of Embodiment 1 of this utility model.

[0017] Figure 2 : Figure 1 An explosion diagram.

[0018] Figure 3 : A flowchart of the workflow of this utility model.

[0019] Figure 4 Schematic diagram of the energy harvesting module circuit.

[0020] Figure 5 : Circuit diagram of temperature and humidity detection module.

[0021] Figure 6 Schematic diagram of segment code display module circuit.

[0022] Figure 7 Schematic diagram of the power management module circuit.

[0023] Figure 8 Schematic diagram of a low-power central controller module with Bluetooth.

[0024] Figure 9 Schematic diagram of Bluetooth antenna module circuit.

[0025] Figure 10 Schematic diagram of the charging management module circuit.

[0026] In the diagram, 1. Front frame, 101. sloping surface, 102. Button, 103. Airflow inlet, 104. Card slot, 2. Back cover, 201. Charging port, 202. Airflow outlet, 203. Adhesive groove, 204. Card claw, 3. Code display screen, 301. Conductive adhesive strip, 4. Solar cell, 401. Energy harvesting chip, 402. Resistor, 403. Inductor, 404. Capacitor, 5. Support piece, 6. Control circuit module, 601. Touch switch, 602. TYPE-C charging port, 603. Temperature and humidity sensor, 7. Lithium battery, 8. Connecting screw. Detailed Implementation

[0027] like Figure 1 , Figure 2As shown, the thermometer and hygrometer housing is formed by the latches 204 of the back cover 2 and the slots 104 of the front frame 1. The housing dimensions are 100×60×15mm. All edges of the housing are rounded. The front of the front frame 1 has an opening window for the code display screen 3 and the solar cell 4, with beveled edges 101 around the window. A button 102 is mounted on the top of the front frame 1, which contacts the touch switch 601 on the control circuit module 6. An airflow inlet 103 is located on the top of the front frame 1, and an airflow outlet is located on the top of the back cover 2, directly opposite the temperature and humidity sensor 603 on the control circuit module 6. The temperature and humidity sensor 603 senses the temperature and humidity of the airflow. The back of the code display screen 3 houses the control circuit module 6 and the lithium battery 7, separated by EVA cotton. The control circuit module 6 is fixed inside the front frame 1 by connecting screws 8, and the lithium battery 7 is soldered to the control circuit module 6. The code display screen 3 is electrically connected to the control circuit module 6 via a conductive adhesive strip 301. The back cover 2 has a TYPE-C port for the control circuit module 6. The charging socket 602 corresponds to the charging hole 201. A circuit is made on the back surface of the solar cell 4. An energy harvesting chip 401, a resistor 402, an inductor 403 and a capacitor 404 are attached to the circuit to form an energy harvesting module.

[0028] like Figure 3 The diagram shown is a flowchart of the workflow of this utility model. The solar cell is connected to the energy storage device through the energy harvesting module. The energy storage battery supplies power to the Bluetooth-enabled low-power central controller module through the power management module. The temperature and humidity detection module outputs the detected temperature and humidity data to the Bluetooth-enabled low-power central controller module. The Bluetooth-enabled low-power central controller module displays the temperature and humidity on the segment code screen through the segment code display module. The Bluetooth-enabled low-power central controller module periodically transmits the data to the cloud through the Bluetooth antenna module.

[0029] like Figures 4 to 10 The diagrams shown are schematics of the energy harvesting module circuit, temperature and humidity detection module circuit, segment code display module circuit, power management module circuit, Bluetooth low-power central controller module circuit, Bluetooth antenna module circuit, and charging management module circuit.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A light-powered thermo-hygrometer based on indoor Internet of Things, characterized in that: The box, consisting of a front frame and a back cover fastened together by snaps, houses a code break display, an energy harvesting module, an energy storage device, a control circuit module, and a support frame on the back of the box. The energy harvesting module includes solar cells and an energy harvesting chip, resistor, inductor, and capacitor integrated on the back of the solar cells. An opening window for the code break display and solar cells is located on the front of the front frame, and a switch button is located on the top of the front frame, corresponding to a touch switch on the control circuit module. A slot or adhesive groove is located on the outer center of the back cover, connecting it to the support frame. A charging port is also provided on the back cover, corresponding to the TYPE-C charging port on the control circuit module. The control circuit module and energy storage device are located behind the code break display, with the energy storage device soldered onto the control circuit module. An airflow inlet and outlet are located on the top of the front frame and the back cover, respectively, corresponding to the positions of the temperature and humidity sensors on the control circuit module.

2. The light-powered thermo-hygrometer based on indoor IoT as described in claim 1, characterized in that: The energy harvesting module is fabricated by printing the energy harvesting circuit on the back coating of the back side of the solar cell. The energy harvesting circuit is covered by a back protective layer with a soldering window. The energy harvesting chip, resistor, inductor, capacitor, and connector are directly surface-mounted or soldered onto the control circuit and integrated with the solar cell through the soldering window.

3. The light-powered thermo-hygrometer based on indoor IoT as described in claim 1, characterized in that: The energy harvesting module can be assembled by first attaching the energy harvesting chip, resistor, inductor, capacitor, and connector to the energy harvesting circuit board via surface mounting or soldering, and then integrating it with the solar cell via a frame.

4. A light-powered thermo-hygrometer based on indoor IoT as described in claim 1, characterized in that: The outer side of the opening window of the front frame is provided with a bevel, and the bevel angle is 30° to 45°.

5. A light-powered thermo-hygrometer based on indoor IoT as described in claim 1, characterized in that: The inner surface of the front frame is provided with a code display screen and a limiting piece for the solar cell, and screw holes for fixing the control circuit module are also provided on the inner surface.

6. A light-powered thermo-hygrometer based on indoor IoT as described in claim 1, characterized in that: The support frame is an angled flap with an angle ranging from 30° to 60°.

7. A photoelectric temperature and humidity meter based on indoor Internet of Things as described in claim 1, characterized in that: The back of the broken code display screen and the solar cell is equipped with a protective pad made of EVA cotton.

8. A light-powered thermo-hygrometer based on indoor IoT as described in claim 1, characterized in that: The inner surface of the back cover is provided with vertical ribs that press down on the protective pad on the back of the solar cell and limiting pieces for the energy storage device; the support piece is recessed on the outside of the back cover and is bonded to the back cover with double-sided adhesive.

9. A light-powered thermo-hygrometer based on indoor Internet of Things as described in claim 1, characterized in that: The solar cells are amorphous silicon cells or perovskite cells with glass substrates, and the energy storage devices are lithium batteries or supercapacitors.

10. A light-powered thermo-hygrometer based on indoor Internet of Things as described in claim 1, characterized in that: The control circuit module includes a power management module, a Bluetooth low-power central controller module, a Bluetooth antenna module, a temperature and humidity detection module, and a segment display module. The solar cell is directly connected to the energy storage device via the Bluetooth low-power central controller module through a connector, and the segment display is connected to the segment display module via a conductive adhesive strip.

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