A fully automatic solar concentrating cooking heating device

Abstract

The utility model discloses a kind of full-automatic solar light-condensing cooking heating devices, it is related to solar energy technical field, including support control base, universal caster, light-condensing reflector, elevation direct current electric push rod, cookware main support, solar cell panel, solar cooker pot rack, motor, temperature sensor and digital light sensor;Control unit is integrated in support control base, light-condensing reflector is disc-like parabolic surface structure, and high reflectivity material is plated in its inner surface.The utility model in the present application, through digital light sensor real-time acquisition solar azimuth data, transmission to control unit, control unit calculates the real-time position of sun by algorithm, and output control signal drives elevation direct current electric push rod and azimuth motor, adjust the pitch angle and horizontal angle of light-condensing reflector, to ensure that the reflection focus of sunlight can accurately and continuously fall in the bottom of cookware, realize full-automatic focusing, without manual intervention.

Description

Technical Field

[0001] This utility model belongs to the field of solar energy technology, specifically, it relates to a fully automatic solar concentrating cooking and heating device. Background Technology

[0002] Traditional solar cookers (such as parabolic concentrators) require users to manually adjust the angle to align with the sun, which is inconvenient and cannot maintain optimal solar concentration for extended periods, resulting in low efficiency. Furthermore, traditional cooking methods require manual supervision; if not addressed promptly after boiling, dry burning can easily occur, posing safety hazards and causing significant energy waste. Existing automatic solar tracking devices are mostly used for power generation, are complex in structure, expensive, and lack integrated automatic flameout and dry-burn protection functions specifically designed for cooking.

[0003] There are currently no effective solutions to the problems in the relevant technologies.

[0004] Therefore, in order to solve the above problems, this utility model provides a fully automatic solar concentrating cooking and heating device. Utility Model Content

[0005] In order to overcome the above-mentioned technical problems, the purpose of this utility model is to provide a fully automatic solar concentrating cooking and heating device.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A fully automatic solar concentrating cooking and heating device includes a support and control base, universal casters, a concentrating reflector, an elevation angle DC electric push rod, a main pot support, a solar panel, a solar cooker pot rack, a motor, a temperature sensor, and a digital light sensor.

[0008] The support control base integrates a control unit. The concentrating reflector is a disc-shaped parabolic structure with its inner surface coated with a high-reflectivity material. The concentrating reflector is connected to the crossbeam at the top of the main cookware support via an elevation DC electric actuator to achieve pitch angle adjustment. The motor is located inside the support control base and is used to drive the concentrating reflector to rotate around the vertical axis to adjust the horizontal azimuth angle. The solar cooker pot rack is horizontally installed on the top of the main cookware support, facing the focal point of the concentrating reflector. The temperature sensor is attached to the bottom area where the solar cooker pot rack contacts the cookware to directly monitor the cookware temperature. The digital light sensor is installed on the top of the concentrating reflector to detect the direction and intensity of sunlight. The control unit receives signals from the temperature sensor and the digital light sensor, processes them, and outputs control signals to the motor and the elevation DC electric actuator to achieve automatic sun tracking, continuous concentrated heating, and automatic pot removal to prevent dry burning after the water boils.

[0009] As a preferred technical solution of this utility model, the concentrating reflector is a parabolic structure formed by stamping cold-rolled steel plate, and the surface is coated with a silver-based or aluminum-based high-reflectivity coating with a reflectivity of not less than 90%. The focal point is located in the center area directly below the solar cooker's pot rack.

[0010] As a preferred technical solution of this utility model, the control unit integrates a microprocessor, a motor drive circuit, a temperature acquisition module, and a power management module; the microprocessor runs a closed-loop control algorithm based on the apparent solar motion trajectory prediction model combined with feedback from a digital light sensor, calculates the solar altitude angle and azimuth angle in real time, and generates control signals to drive the elevation angle DC electric push rod and motor, so as to realize the dual-axis automatic tracking of the reflector to maintain the sunlight focused on the bottom of the cookware.

[0011] As a preferred embodiment of this utility model, the temperature sensor is an NTC thermistor, and the control unit has a built-in temperature rise rate discrimination module to distinguish between the normal heating process and the abnormal temperature rise state that may lead to dry burning.

[0012] As a preferred technical solution of this utility model, a triangular bracket is installed at the bottom of the support control base, and a universal caster with a braking function is installed at the end of the triangular bracket.

[0013] As a preferred technical solution of this utility model, it also includes an energy storage battery installed inside the support control base. The solar panel is installed at the upper edge of the concentrating reflector. The solar panel charges the energy storage battery through a charge and discharge management circuit. The energy storage battery supplies power to the control unit, the elevation angle DC electric push rod, the motor, the temperature sensor, and the digital light sensor.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In this utility model, a digital light sensor collects solar azimuth data in real time and transmits it to a control unit. The control unit calculates the real-time position of the sun through an algorithm and outputs a control signal to drive the elevation DC electric push rod and the azimuth motor to adjust the pitch and horizontal angles of the concentrating reflector, thereby ensuring that the reflection focus of sunlight can fall accurately and continuously on the bottom of the pot, achieving fully automatic focusing without manual intervention.

[0016] 2. In this utility model, the NTC thermistor at the bottom of the pot collects the temperature in real time, the control unit presets the boiling point threshold and monitors the rate of temperature rise, distinguishing between normal heating and abnormal dry burning. When the water temperature reaches the boiling point or a risk of dry burning is detected, the control unit drives the elevation angle DC electric push rod and the azimuth angle motor to move the focusing reflector, so that the pot quickly moves away from the focusing point, stops heating and triggers a prompt, fundamentally preventing dry burning. It also has a heating timer function, and if the continuous boiling time is required, it can also be controlled by the program.

[0017] 3. In this utility model, the temperature closed-loop control system ensures that as long as there is sufficient solar energy, the device will continuously track and heat until the water temperature reaches the set boiling point threshold before triggering the protection action, thereby ensuring that the water will definitely be boiled. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a front view of the present invention;

[0021] Figure 3 , Figure 4 This is a side view of the present invention;

[0022] Figure 5 This is a top view of the present invention;

[0023] Figure 6 This is an enlarged view of section A of this utility model.

[0024] Figure label:

[0025] 1. Support control base; 2. Universal casters; 3. Concentrating reflector; 4. Elevation DC electric actuator; 5. Main cookware bracket; 6. Solar panel; 7. Solar cooker pot rack; 8. Motor; 9. Temperature sensor; 10. Digital light sensor. Detailed Implementation

[0026] The utility model will now be further described with reference to the accompanying drawings and specific embodiments:

[0027] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 According to an embodiment of this utility model, a fully automatic solar-powered concentrating cooking and heating device includes a support control base 1, universal casters 2, a concentrating reflector 3, an elevation angle DC electric push rod 4, a main cookware support 5, a solar panel 6, a solar cooker pot rack 7, a motor 8, a temperature sensor 9, and a digital light sensor 10. The support control base 1 integrates a control unit, which is the core carrier for the installation and control of the device. The control unit undertakes the core functions of "signal reception - algorithm processing - drive control". The concentrating reflector 3 has a disc-shaped parabolic structure, and its inner surface is coated with a high-reflectivity material. The concentrating reflector 3 is a key component for concentrating sunlight, responsible for reflecting and focusing sunlight onto the bottom of the cookware to provide the energy basis for cooking and heating. The concentrating reflector 3 is connected to the crossbeam at the top of the main cookware support 5 via the elevation angle DC electric push rod 4 to achieve tilt angle adjustment. The motor 8 is located on the support control base 1. Inside the base 1, the concentrating reflector 3 is driven to rotate around the vertical axis to adjust the horizontal azimuth angle. The elevation DC electric push rod 4 and the motor 8 control the pitch angle and horizontal azimuth angle of the concentrating reflector 3 respectively, realizing dual-axis adjustment. The solar cooker pot rack 7 is horizontally installed on the top of the main pot support 5, facing the focal point of the concentrating reflector 3. The temperature sensor 9 is attached to the bottom area of ​​the solar cooker pot rack 7 in contact with the pot, to directly monitor the pot temperature and provide an accurate signal for "boiling water detection". The digital light sensor 10 is installed on the top of the concentrating reflector 3 to detect the direction and intensity of sunlight, ensuring that the concentrating reflector 3 is always aligned with the sun. The control unit receives the signals from the temperature sensor 9 and the digital light sensor 10, processes them, and outputs control signals to the motor 8 and the elevation DC electric push rod 4 to realize automatic sun tracking, continuous concentrating heating, and automatic pot removal to prevent dry burning after the water boils.

[0028] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The concentrating reflector 3 is a parabolic structure formed by stamping cold-rolled steel plate. The surface is coated with a silver-based or aluminum-based high-reflectivity coating with a reflectivity of not less than 90%. The focal point is located in the center area directly below the solar cooker frame 7. The disc-shaped parabolic structure is one of the optimal forms for optical concentrating, which can ensure that the dispersed sunlight is accurately focused to a single focal point after reflection, avoiding the dispersion of light energy. The inner surface is made of a high-reflectivity material, which can reduce the energy loss during the reflection of sunlight and maximize the concentrating efficiency.

[0029] Please see Figure 1The control unit integrates a microprocessor, a motor drive circuit, a temperature acquisition module, and a power management module. The microprocessor runs a closed-loop control algorithm based on a solar motion trajectory prediction model combined with feedback from a digital light sensor 10. It calculates the solar altitude angle and azimuth angle in real time and generates control signals to drive the elevation angle DC electric push rod 4 and the motor 8, realizing dual-axis automatic tracking of the reflector 3 to maintain sunlight focused on the bottom of the cookware. By combining the solar motion trajectory prediction model with real-time light feedback, the hybrid control algorithm overcomes the lag error that may be caused by relying solely on sensor feedback, and also makes up for the deviation problem of pure astronomical algorithms under local obstruction or atmospheric disturbance. The microprocessor dynamically corrects the adjustment commands of azimuth and elevation angles by fusing theoretical solar path data with the difference in actual light intensity, forming a closed-loop feedback control, thereby always maintaining the best light-gathering state.

[0030] Please see Figure 6 Temperature sensor 9 is an NTC thermistor. The control unit has a built-in temperature rise rate discrimination module to distinguish between normal heating process and abnormal temperature rise state that may cause dry burning. The temperature rise rate discrimination module significantly improves the safety level of the device, making it not only suitable for daily home use, but also applicable to scenarios with higher safety requirements such as outdoor camping and emergency disaster relief.

[0031] Please see Figure 1 and Figure 2 The control base 1 is equipped with a triangular bracket at the bottom, and a universal caster 2 with a braking function is installed at the end of the triangular bracket. Users can freely deploy the device in various places such as courtyards, balconies, and roofs, and lock it with the universal caster 2 to prevent wind from shaking and affecting the focusing accuracy. This structure is simple but highly practical and is especially suitable for the operation needs of non-professional users.

[0032] Please see Figure 1 , Figure 2 and Figure 3 It also includes an energy storage battery installed inside the support control base 1. The solar panel 6 is installed at the upper edge of the concentrating reflector 3. The solar panel 6 charges the energy storage battery through the charge and discharge management circuit. The energy storage battery powers the control unit, the elevation angle DC electric push rod 4, the motor 8, the temperature sensor 9, and the digital light sensor 10. The solar panel 6 provides green electricity and does not require an external power source, thus achieving energy self-sufficiency.

[0033] The working principle of a fully automatic solar concentrating cooking and heating device is as follows: Water is poured into a pot, and then the pot is placed on the solar cooker pot rack 7. The angle and intensity of sunlight are detected in real time by a digital light sensor 10, providing feedback signals to the control unit. The control unit has a built-in microprocessor that runs a hybrid algorithm of "solar motion trajectory prediction model + real-time light intensity feedback" to dynamically calculate the solar altitude angle and azimuth angle. The DC electric actuator 4 drives the elevation angle to adjust the elevation angle of the concentrating reflector 3, and the drive motor 8 controls the horizontal azimuth angle to ensure that the concentrating reflector 3 is always aligned with the sun, focusing sunlight onto the bottom of the pot. The NTC thermistor 9 at the bottom of the pot collects the temperature in real time, and the control unit presets the temperature. The system monitors the boiling point threshold (e.g., 98℃) and the rate of temperature rise to distinguish between normal heating and abnormal dry burning. When the water temperature reaches the boiling point or a risk of dry burning is detected, the control unit drives the elevation DC electric push rod 4 and the azimuth motor 8 to move the concentrating reflector, causing the pot to quickly move away from the focal point, stopping heating and triggering a prompt, thus fundamentally preventing dry burning. The solar panel 6 on the upper edge of the concentrating reflector 3 charges the energy storage battery through the charge and discharge management circuit, providing green power to the control unit, motor, and sensors, enabling operation without an external power source. The universal casters 2 with brakes at the bottom of the support control base 1 facilitate movement and fixation in places such as courtyards and balconies, ensuring stable operation of the device in different environments.

[0034] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fully automatic solar concentrating cooking and heating device, characterized in that: Includes a support control base (1), universal casters (2), a concentrating reflector (3), an elevation angle DC electric push rod (4), a cookware main bracket (5), a solar panel (6), a solar cooker pot rack (7), a motor (8), a temperature sensor (9), and a digital light sensor (10); The control base (1) integrates a control unit. The concentrating reflector (3) is a disc-shaped parabolic structure with a high reflectivity material coated on its inner surface. The concentrating reflector (3) is connected to the crossbeam at the top of the main cookware support (5) via an elevation DC electric push rod (4) to achieve pitch angle adjustment. The motor (8) is located inside the control base (1) and is used to drive the concentrating reflector (3) to rotate around the vertical axis to adjust the horizontal azimuth angle. The solar cooker pot rack (7) is horizontally installed on the top of the main cookware support (5) and faces the concentrating reflector. One end of the focal point of the plate (3); the temperature sensor (9) is attached to the bottom area of ​​the solar cooker pot rack (7) in contact with the pot, and is used to directly monitor the pot temperature; the digital light sensor (10) is installed on the top of the concentrating reflector (3) to detect the direction and intensity of sunlight; the control unit receives the signals from the temperature sensor (9) and the digital light sensor (10), processes them and outputs control signals to the motor (8) and the elevation angle DC electric push rod (4) to realize automatic tracking of the sun, continuous concentrating heating and automatic pot removal to prevent dry burning after the water boils.

2. The fully automatic solar concentrating cooking and heating device according to claim 1, characterized in that: The concentrating reflector (3) is a parabolic structure formed by stamping cold-rolled steel plate, and its surface is coated with a silver-based or aluminum-based high-reflectivity coating with a reflectivity of not less than 90%. The focal point is located in the center area directly below the solar cooker rack (7).

3. The fully automatic solar concentrating cooking and heating device according to claim 1, characterized in that: The control unit integrates a microprocessor, a motor drive circuit, a temperature acquisition module, and a power management module. The microprocessor runs a closed-loop control algorithm based on the solar motion trajectory prediction model combined with feedback from a digital light sensor (10), calculates the solar altitude angle and azimuth angle in real time, and generates control signals to drive the elevation angle DC electric push rod (4) and the motor (8) to achieve dual-axis automatic tracking of the reflector (3) to maintain sunlight focused on the bottom of the cookware.

4. The fully automatic solar concentrating cooking and heating device according to claim 1, characterized in that: The temperature sensor (9) is an NTC thermistor. The control unit has a built-in temperature rise rate discrimination module to distinguish between the normal heating process and the abnormal temperature rise state that may cause dry burning.

5. The fully automatic solar concentrating cooking and heating device according to claim 1, characterized in that: The bottom of the support control base (1) is equipped with a triangular bracket, and the end of the triangular bracket is equipped with a universal caster (2) with a braking function.

6. The fully automatic solar concentrating cooking and heating device according to claim 1, characterized in that: It also includes an energy storage battery installed inside the support control base (1), the solar panel (6) is installed at the upper edge of the concentrating reflector (3), the solar panel (6) charges the energy storage battery through the charge and discharge management circuit, and the energy storage battery supplies power to the control unit, the elevation angle DC electric push rod (4), the motor (8), the temperature sensor (9) and the digital light sensor (10).

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