Solar equipment

Abstract

The invention discloses solar equipment. The solar equipment comprises an output circuit, at least two solar panels, a switching circuit, an acquisition circuit, a motor and a processing circuit, the at least two solar panels are used for outputting voltage signals and are combined side by side to form a combined plate. And the switching circuit is used for connecting or disconnecting an electric path between each solar panel and the output circuit. The acquisition circuit is used for acquiring a voltage signal of each solar panel. And the motor is used for driving the combined plate to rotate, so that the at least two solar panels can track solar radiation. The processing circuit is used for controlling the switching circuit to disconnect an electric path between the at least two solar panels and the output circuit in an awakening state; and according to the voltage signals of the solar panels, at least one of controlling the switching circuit to switch on or switch off an electric path between each solar panel and the output circuit, controlling the motor to rotate and entering a dormant state is correspondingly executed. In this way, low-power-consumption solar tracking can be achieved.

Description

Technical Field

[0001] The present application relates to the field of solar energy technology, and in particular to a solar energy device. Background Art

[0002] With the development of the times, solar energy technology has developed rapidly, and various solar energy equipment has entered the lives of the public. Solar energy equipment receives renewable solar thermal radiation energy through solar panels and converts it into electrical energy. Solar tracking refers to the use of optimized sunlight through mechanical and electronic control units during the power generation process, allowing sunlight to shine vertically on solar panels as much as possible at any time to improve the efficiency of photoelectric conversion.

[0003] However, in the prior art, solar energy tracking performed by solar energy equipment may result in the consumption of electrical energy being greater than the converted electrical energy or the electrical energy provided to charge external devices, making it difficult to achieve low-power solar energy tracking and unable to meet demand. Summary of the invention

[0004] The main technical problem solved by the present application is to provide a solar energy device that can achieve low-power solar energy tracking.

[0005] A technical solution adopted by the present application is to provide a solar device, which includes an output circuit, at least two solar panels, a switch circuit, a collection circuit, a motor and a processing circuit. At least two solar panels are used to output voltage signals and are combined side by side to form a combined panel. The switch circuit is coupled between at least two solar panels and the output circuit, and the switch circuit is used to conduct or disconnect the electrical path between each solar panel and the output circuit. The collection circuit is coupled to at least two solar panels and is used to collect the voltage signal of each solar panel. The motor is connected to the combined panel in a transmission manner and is used to drive the combined panel to rotate so that at least two solar panels can track solar radiation. The processing circuit is coupled to at least two solar panels, the switch circuit and the motor, and is used to control the switch circuit to disconnect the electrical path between at least two solar panels and the output circuit in the awake state, and then control the collection circuit to collect the voltage signal of each solar panel, and execute at least one of controlling the switch circuit to conduct or disconnect the electrical path between each solar panel and the output circuit, controlling the rotation of the motor and entering the sleep state according to the voltage signal of each solar panel. The processing circuit is used to determine the motor rotation strategy when it is determined that the voltage signal of each solar panel meets the tracking voltage condition, and then control the motor to rotate accordingly according to the motor rotation strategy.

[0006] The beneficial effects of the present application are as follows: different from the prior art, by setting at least two solar panels that form a combined panel in parallel and a motor that can drive the combined panel to rotate, the solar energy tracking of the solar equipment is realized, and the switch circuit can conduct or disconnect the electrical path between each solar panel and the output circuit, and the collection circuit can collect the voltage signal of each solar panel, and the processing circuit in the awake state controls the switch circuit to conduct or disconnect the electrical path between each solar panel and the output circuit, controls the rotation of the motor, and enters the dormant state. Among them, the magnitude of the voltage signal of each solar panel can reflect the strength of the solar radiation received by the solar panel, and the processing circuit determines the motor rotation strategy when it determines that the voltage signal of each solar panel meets the tracking voltage condition, and then controls the motor to rotate accordingly according to the motor rotation strategy, so as to realize adaptive control of the rotation of the combined panel, and can realize the optimal use of solar radiation, effectively improve the utilization efficiency of solar radiation, reduce the power consumption waste caused by the motor drive rotation, and realize low-power solar energy tracking of solar equipment. Secondly, the processing circuit can control the on or off of the switch circuit according to the voltage signal, so as to timely disconnect the electrical path between the solar panel and the output circuit when the voltage provided by the solar panel cannot meet the charging requirements of the external device, effectively avoid backflow leakage, and improve the charging effect of the external device. Furthermore, the processing circuit makes a judgment based on the voltage signal to control the processing circuit to enter a dormant state when the solar device does not need to further track the solar energy, avoiding unnecessary power consumption, effectively reducing the power consumption of the solar device, and effectively realizing low-power operation of the solar device. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a schematic block diagram of the circuit structure of an embodiment of the solar energy device of the present application. DETAILED DESCRIPTION

[0008] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0009] With the development of the times, solar energy technology has developed rapidly, and various solar energy equipment has entered the lives of the public. Solar energy equipment receives renewable solar thermal radiation energy through solar panels and converts it into electrical energy. The amount of electrical energy converted by solar panels is affected by the angle of sunlight. The closer the sunlight is to vertical, the stronger the solar radiation received by solar energy, and the more electrical energy converted. Therefore, in order to better utilize solar radiation, solar energy tracking devices are usually set on solar energy equipment. By rotating the solar panels, the sunlight can be irradiated vertically as much as possible on the solar panels at any time, thereby improving the photoelectric conversion efficiency.

[0010] After long-term research, the inventors of the present application have discovered that the solar tracking of solar energy equipment in the prior art is to detect the brightness of the light in the environment to determine the intensity of solar radiation at the current location, and to turn the solar panels to a brighter direction to achieve solar tracking of the solar energy equipment. However, cold light source equipment such as street lamps and table lamps will affect the judgment of ambient light, resulting in deviations in solar tracking, and it is impossible to smoothly and accurately turn the solar panels to the direction of stronger solar radiation, resulting in waste of power consumption and low photoelectric conversion efficiency. In addition, when the solar energy converted by the solar equipment is less and the voltage is lower, it cannot meet the charging needs of external devices, and the phenomenon of power consumption being greater than charging, backflow leakage, etc. may occur. Based on this, the present application proposes the following embodiments to solve the above technical problems.

[0011] The following solar energy device embodiments of the present application describe exemplary structures of solar energy devices.

[0012] like Figure 1 As shown, the solar device 1 includes at least two solar panels 110 , a switch circuit 20 , an output circuit 30 , a collection circuit 40 , a motor 50 and a processing circuit 60 .

[0013] At least two solar panels 110 can receive solar radiation and convert it into electrical energy for outputting voltage signals, and at least two solar panels 110 are combined side by side into a combined panel 10. The number of solar panels 110 is at least two, for example, two, three, four, or other numbers. Multiple solar panels 110 can be arranged side by side and combined into a combined panel 10, and multiple solar panels 110 can be coupled to each other.

[0014] The motor 50 is coupled to the processing circuit 60, and the motor 50 is transmission-connected to the combined panel 10. The motor 50 is used to drive the combined panel 10 to rotate under the control of the processing circuit 60, so that the combined panel 10 turns to the side with stronger solar radiation, so that the combined panel 10 composed of at least two solar panels 110 can track solar radiation.

[0015] The switch circuit 20 is coupled to at least two solar panels 110, and the output circuit 30 is coupled to the switch circuit 20, that is, the switch circuit 20 is coupled between at least two solar panels 110 and the output circuit 30. The switch circuit 20 is used to turn on or off the electrical path between each solar panel 110 and the output circuit 30, that is, the electrical path between each solar panel 110 and the output circuit 30 can be turned on or off respectively. The output circuit 30 is used to process the received voltage, such as boosting or bucking, for charging the external device or the solar device 1. In some embodiments, the output circuit 30 can be a power management chip. In some embodiments, the output circuit 30 can be a transformer circuit, such as a step-down converter circuit (Buck circuit) or a boost chopper circuit (Boost converter).

[0016] The collection circuit 40 is coupled to at least two solar panels 110 and the processing circuit 60, and is used to collect the voltage signal of each solar panel 110. Optionally, the collection circuit 40 includes at least two analog-to-digital converters 410 (Analog to Digital Converter, ADC), and the at least two analog-to-digital converters 410 correspond to the at least two solar panels 110 one by one. Each analog-to-digital converter 410 is coupled between the corresponding solar panel 110 and the processing circuit 60, and is used to collect the voltage signal of each solar panel 110 and convert the voltage signal, and then send the converted voltage signal to the processing circuit 60. The converted voltage signal can be a digital signal, and the digital signal sent by each digital-to-analog converter is used to indicate the size of the voltage converted by the corresponding solar panel 110.

[0017] The processing circuit 60 is coupled to at least two solar panels 110, the switch circuit 20, and the motor 50. Specifically, the processing circuit 60 is coupled to the at least two solar panels 110 by coupling the collection circuit 40. The processing circuit 60 can switch between a sleep state and a wake-up state, and is used to control the switch circuit 20 to disconnect the electrical path between at least two solar panels 110 and the output circuit 30 in the wake-up state, and then control the collection circuit 40 to collect the voltage signal of each solar panel 110, and according to the voltage signal of each solar panel 110, correspondingly execute at least one of controlling the switch circuit 20 to conduct or disconnect the electrical path between each solar panel 110 and the output circuit 30, controlling the rotation of the motor 50, and entering the sleep state. Among them, the processing circuit 60 is used to determine the motor rotation strategy when it is determined that the voltage signal of each solar panel 110 meets the tracking voltage condition, and then control the motor 50 to rotate accordingly according to the motor rotation strategy. Optionally, the processing circuit 60 stops controlling the collection circuit 40 to collect the voltage signal of each solar panel 110 in the sleep state, and stops controlling the rotation of the motor 50, thereby saving the power consumption of the solar device 1 and realizing low-power operation of the solar device 1. The processing circuit 60 may be a CPU (Central Processing Unit). The processing circuit 60 may be an integrated circuit chip with signal processing capabilities. The processing circuit 60 may also be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The general-purpose processor may be a microprocessor (Microcontroller Unit, MCU) or the processing circuit 60 may also be any conventional processor, etc.

[0018] By controlling the rotation of the motor 50 in the awake state according to the voltage signal of each solar panel 110 collected by the collection circuit 40, the processing circuit 60 can accurately compare the magnitude of solar radiation received by the combination panel 10 in different directions, and then accurately control the motor 50 to drive the combination panel 10 to the direction with stronger solar radiation, thereby effectively reducing the possibility of adverse effects of ambient light on solar tracking, achieving effective solar tracking, and effectively reducing the power consumption waste caused by multiple driving of the motor 50 due to inaccurate solar tracking, which is conducive to achieving low power consumption in solar tracking. In addition, the processing circuit 60 controls the conduction or disconnection of the electrical path between each solar panel 110 and the output circuit 30 according to the voltage signal of each solar panel 110 in the awake state, so that when the voltage converted by the solar panel 110 meets the charging requirement of the external device, the switch circuit 20 is controlled to conduct the electrical path between the corresponding solar panel 110 and the output circuit 30 to charge the external device, and when the voltage converted by the solar panel 110 cannot meet the charging requirement of the external device, the switch circuit 20 is controlled to disconnect the electrical path between the corresponding solar panel 110 and the output circuit 30, thereby effectively reducing the possibility of backflow leakage and improving the effectiveness and reliability of the operation of the solar device 1.

[0019] Optionally, the switch circuit 20 includes at least two first switches 210, and the at least two first switches 210 correspond to at least two solar panels 110 one by one. Each first switch 210 is coupled between the corresponding solar panel 110 and the output circuit 30, and each first switch 210 is coupled to the processing circuit 60, and is used to open or close the electrical path between the corresponding solar panel 110 and the output circuit 30 under the control of the processing circuit 60. When a certain first switch 210 opens the electrical path between its corresponding solar panel 110 and the output circuit 30, the voltage signal converted and output by the solar panel 110 can be processed by the output circuit 30 and output to the external device for charging, and when a certain first switch 210 disconnects the electrical path between its corresponding solar panel 110 and the output circuit 30, the collection circuit 40 can collect and convert the voltage signal converted and output by the solar panel 110 to send it to the processing circuit 60 for judgment and processing.

[0020] By setting a first switch 210 corresponding to each solar panel 110, the conduction or disconnection of the electrical path between each solar panel 110 and the output circuit 30 is accurately and effectively controlled, thereby effectively improving the reliability of the voltage converted by each solar panel 110 for power supply, thereby improving the reliability of the operation of the solar device 1.

[0021] Optionally, each solar panel 110 has a first positive terminal 111 and a first negative terminal 112, and the output circuit 30 has a second positive terminal 310 and a second negative terminal 320. The first positive terminal 111 of each solar panel 110 is used to couple with the second positive terminal 310, the first negative terminal 112 of each solar panel 110 is coupled to ground, and the second negative terminal 320 of the output circuit 30 is coupled to ground. Optionally, each first switch 210 is coupled between the first positive terminal 111 and the second positive terminal 310 of the corresponding solar panel 110.

[0022] Furthermore, the processing circuit 60 is used to determine whether the voltage signal of each solar panel 110 is greater than or equal to a first preset voltage value.

[0023] Optionally, the tracking voltage condition includes that the voltage signal of each solar panel 110 is respectively greater than or equal to a first preset voltage value. The processing circuit 60 is used to calculate the maximum difference between the voltage signals of at least two solar panels 110 when the voltage signal of each solar panel 110 is greater than or equal to the first preset voltage value, and determine the motor rotation strategy that matches the maximum difference. The processing circuit 60 is used to control the motor 50 to rotate accordingly according to the motor rotation strategy. Specifically, the motor rotation strategy includes the rotation direction and rotation duration of the motor 50. The processing circuit 60 is used to determine the rotation direction and rotation duration of the motor 50 based on the maximum difference to determine the motor rotation strategy. In some embodiments, the first preset voltage value can be the voltage value required for charging an external device, such as 5V, 10V, 15V, etc., and of course it can also be other sizes.

[0024] When the voltage signal of each solar panel 110 is greater than or equal to the first preset voltage value, it indicates that the size of the voltage signal converted by each solar panel 110 using solar radiation meets the charging needs of the external device. At this time, charging the external device will not cause the external device to backflow current to the solar device 1, and the solar radiation in the environment where the solar device 1 is located is sufficient. At this time, solar tracking can improve the utilization rate of solar radiation by the solar device 1, thereby improving the photoelectric conversion efficiency of the solar device 1, and effectively avoiding power consumption waste caused by inefficient solar tracking.

[0025] Optionally, the processing circuit 60 is used to determine whether the maximum difference is greater than or equal to a first preset voltage difference and less than or equal to a second preset voltage difference. Wherein, the first preset difference voltage is less than the second preset voltage difference. In some embodiments, the first preset difference is 15mV and the second preset voltage difference is 150mV. In some embodiments, the first preset difference is 20mV and the second preset voltage difference is 200mV. In some embodiments, the first preset difference is 25mV and the second preset voltage difference is 250mV.

[0026] If the maximum difference is greater than or equal to the first preset voltage difference and less than the second preset voltage difference, the processing circuit 60 is used to calculate the rotation time according to the first coefficient and the maximum difference, and determine the rotation direction as the direction of the one with the highest voltage signal among the at least two solar panels 110. In some embodiments, there are two solar panels 110, namely A solar panel 110 and B solar panel 110, and the maximum difference is the difference between the voltage signals of A solar panel 110 and B solar panel 110. When the maximum difference is greater than or equal to the first preset voltage difference and less than the second preset voltage difference, wherein the voltage signal of A solar panel 110 is higher than that of B solar panel 110, the processing circuit 60 is used to calculate the rotation time according to the first coefficient and the maximum difference, and control the motor 50 to drive the combined panel 10 to rotate in the direction of A solar panel 110 for the calculated rotation time.

[0027] If the maximum difference is greater than the second preset voltage difference, the processing circuit 60 is used to calculate the rotation duration according to the second coefficient and the maximum difference, and determine the rotation direction as the direction of the one with the highest voltage signal among the at least two solar panels 110. Among them, the first coefficient is less than the second coefficient. In some embodiments, there are two solar panels 110, namely A solar panel 110 and B solar panel 110, and the maximum difference is the difference between the voltage signals of A solar panel 110 and B solar panel 110. When the maximum difference is greater than the second preset voltage difference, wherein the voltage signal of A solar panel 110 is higher than that of B solar panel 110, the processing circuit 60 is used to calculate the rotation duration according to the second coefficient and the maximum difference, and control the motor 50 to drive the combined panel 10 to rotate in the direction of A solar panel 110 for the calculated rotation time.

[0028] By comparing the maximum difference with the first preset voltage difference and the second preset voltage difference, and then using the first coefficient and the second coefficient to calculate the rotation time of the motor 50 respectively, it is conducive to refining the motor rotation strategy, and accurately controlling the rotation amplitude of the motor 50 driving the combined panel 10, and effectively improving the accuracy of solar tracking. Among them, the first coefficient is smaller than the second coefficient. When the maximum difference is greater than or equal to the first preset voltage difference and less than the second preset voltage difference, it indicates that the difference in voltage signals between the solar panels 110 is not large, that is, the intensity difference of solar radiation received by different solar panels 110 is not very different, and the combined panel 10 does not need to rotate too much in the direction of stronger solar radiation, and the relatively small first coefficient is used to calculate the rotation time. When the maximum difference is greater than the second preset voltage difference, it indicates that the difference in voltage signals between the solar panels 110 is large, that is, the intensity difference of solar radiation received by different solar panels 110 is relatively large, and the combined panel 10 can rotate a larger amplitude in the direction of stronger solar radiation to improve the photoelectric conversion efficiency of the solar device 1, and the relatively large second coefficient is used to calculate the rotation time.

[0029] Optionally, if the maximum difference is less than the first preset voltage difference, the processing circuit 60 is used to control the switch circuit 20 to conduct the electrical path between each solar panel 110 and the output circuit 30 and enter a sleep state.

[0030] When the maximum difference is less than the first preset voltage difference, it indicates that the voltage signals of at least two solar panels 110 are sufficient to supply external devices for charging, and the difference in voltage signals between the solar panels 110 is not large, that is, the intensity of solar radiation received by each solar panel 110 is not much different. At this time, the control motor 50 drives the combined panel 10 to rotate with low gain. Therefore, the processing circuit 60 controls the switch circuit 20 to conduct the electrical path between each solar panel 110 and the output circuit 30, so as to transmit the voltage signal converted by each solar panel 110 to the output circuit 30, and enter the sleep state, which effectively reduces the waste of power consumption and effectively optimizes the utilization of power consumption.

[0031] Furthermore, the processing circuit 60 is used to determine whether the number of times the motor 50 is controlled to rotate in the current wake-up state is greater than or equal to a preset number of times after the motor 50 is controlled to rotate. If the number of times the motor 50 rotates is greater than or equal to the preset number of times, the processing circuit 60 is used to control the conduction switch circuit 20 to conduct the electrical path between each solar panel 110 and the output circuit 30, and enter the sleep state.

[0032] The preset number of times is the maximum number of times the processing circuit 60 controls the motor 50 to rotate in each wake-up state. When the processing circuit 60 controls the motor 50 to rotate for the preset number of times in one wake-up state, it indicates that the position of the combination panel 10 has been adjusted multiple times in the wake-up state to achieve solar tracking. At this time, continuing to rotate the combination panel 10 may have limited benefits, and repeatedly driving the motor 50 to rotate the combination panel 10 will also cause unnecessary power consumption. Therefore, setting a preset number of limits for controlling the rotation of the motor 50 can effectively save the power consumption of the solar device 1 and achieve low-power solar tracking.

[0033] Further, the processing circuit 60 is used to determine whether the voltage signal of each solar panel 110 is greater than or equal to the first preset voltage value. If the voltage signal of the first part of the solar panels 110 in at least two solar panels 110 is greater than or equal to the first preset voltage value, and the voltage signal of the second part of the solar panels 110 in at least two solar panels 110 is less than the first preset voltage value, the processing circuit 60 is used to control the switch circuit 20 to conduct the electrical path between the first part of the solar panels 110 and the output circuit 30, and enter the dormant state. At this time, the first part of the solar panels 110 outputs the converted voltage signal to the output circuit 30 through the corresponding first switch 210, and the output circuit 30 processes the voltage signal provided by the first part of the solar panels 110 to output it to the external device for charging, while the electrical path between the second part of the solar panels 110 and the output circuit 30 remains disconnected, effectively preventing the backflow leakage due to the low voltage signal provided by the second part of the solar panels 110, thereby improving the effectiveness and reliability of the solar device 1.

[0034] Furthermore, the processing circuit 60 is used to determine whether the voltage signal of each solar panel 110 is greater than or equal to a first preset voltage value. If the voltage signal of each solar panel 110 is less than the first preset voltage value, the processing circuit 60 enters a dormant state. At this time, the voltage signal provided by each solar panel 110 does not meet the charging requirements of the external device, and the solar radiation intensity received by each solar panel 110 is low. For example, it is night or rainy at this time. Solar tracking will cause unnecessary power consumption waste, so the processing circuit 60 enters a dormant state to save power consumption. Optionally, the processing circuit 60 is used to reset the number of rotations of the motor 50 when entering the dormant state.

[0035] Optionally, the processing circuit 60 is used to control the processing circuit 60 to enter the awake state when the preset sleep time is continued in the sleep state. Because the change of the external environment is continuous, when the processing circuit 60 is in the sleep state for the preset sleep time, the solar radiation received by each solar panel 110 may also change. At this time, the processing circuit 60 re-enters the awake state to judge the voltage signal of each solar panel 110 again, thereby achieving further solar energy tracking and improving the reliability of the solar energy device 1. The preset sleep time can be 0.5 hours, 1 hour, 1.5 hours, 2 hours, and of course other time lengths.

[0036] Optionally, the solar device 1 includes a second switch 70 and an output interface 71, the second switch 70 is coupled between the output circuit 30 and the output interface 71, and the second switch 70 is coupled to the processing circuit 60. The second switch 70 is used to turn on or off the electrical path between the output circuit 30 and the output interface 71, the processing circuit 60 is used to control the turning on or off of the second switch 70, and the output interface 71 is used to couple to an external device to power the external device. When the second switch 70 is turned on, the output interface 71 receives the voltage signal transmitted by the output circuit 30 to power the external device, and when the second switch 70 is turned on, the external device is stopped from being powered.

[0037] Optionally, the solar device 1 also includes an operational amplifier circuit 72, the input end of the operational amplifier circuit 72 is coupled between the second switch 70 and the output interface 71, and the output end of the operational amplifier circuit 72 is coupled to the processing circuit 60 to detect the current delivered to the output interface 71 through the second switch 70, effectively detect the power supply to the external device, and effectively improve the effectiveness of the operation of the solar device 1.

[0038] Optionally, the solar device 1 includes a third switch 80, a charging circuit 81 and a battery 82 coupled in sequence, the third switch 80 is coupled to the output circuit 30 and the processing circuit 60, and the battery 82 is coupled to the processing circuit 60. The processing circuit 60 is used to control the third switch 80 to be turned on or off, the charging circuit 81 is used to perform corresponding voltage processing on the voltage received by it, and output it to the battery 82 for charging, and the battery 82 is used to store electrical energy to power the processing circuit 60.

[0039] Optionally, the processing circuit 60 is used to determine whether the power value stored in the battery 82 is less than or equal to the first power value. If the power value stored in the battery 82 is less than or equal to the first power value, the third switch 80 is controlled to be turned on to charge the battery 82, and the motor 50 is controlled to drive the combined panel 10 to rotate to a preset posture. The first power value can be the minimum value to ensure that the battery 82 supplies power to the processing circuit 60. When the power value stored in the battery 82 is less than or equal to the first power value, the power of the battery 82 is insufficient to ensure the operation of the processing circuit 60, and the third switch 80 is controlled to be turned on to charge the battery 82. At this time, the processing circuit 60 can control the second switch 70 to be disconnected, so that the electric energy converted by the solar panel 110 is used as much as possible to charge the battery 82, effectively improving the charging efficiency of the battery 82. The preset posture can be the position of the combined panel 10 with the highest photoelectric conversion efficiency of the solar panel 110 when solar energy tracking is not performed. For example, the combined panel 10 can be facing up, so that the combined panel 10 can receive a certain amount of solar radiation to convert it into electric energy to charge the battery 82 regardless of whether it is morning, noon or afternoon.

[0040] Optionally, the processing circuit 60 is used to determine whether the power value stored in the battery 82 is greater than or equal to the second power value. If the power value stored in the battery 82 is greater than or equal to the second power value, the third switch 80 is controlled to be disconnected to stop charging the battery 82. The second power value is greater than the first power value. When the power value of the battery 82 is greater than or equal to the second power value, it indicates that the battery 82 stores enough power to power the processing circuit 60, and the third switch 80 is disconnected, so that the power converted by the solar panel 110 is used as much as possible to charge the external device, effectively improving the effectiveness of the solar device 1.

[0041] Optionally, the solar device 1 includes a functional component 90, and the processing circuit 60 is used to couple the functional component 90 to achieve corresponding functions. In some embodiments, the functional component 90 includes a display screen, and the processing circuit 60 can control the display screen to display the current load capacity of the solar device 1. The load capacity is the maximum load that the solar device 1 can withstand under a given continuous operation time, or the maximum duration that the solar device 1 can operate continuously under a given load. In some embodiments, the functional component 90 includes a wireless circuit, which can be a Wifi circuit or a wireless Bluetooth circuit. The processing circuit 60 can send the working status of the solar device 1 to the user's client, such as a computer, a laptop or a mobile phone, through the wireless circuit, so as to display it on the user's client.

[0042] In summary, by arranging at least two solar panels 110 forming a combined panel 10 in parallel and a motor 50 capable of driving the combined panel 10 to rotate, the solar tracking of the solar device 1 is realized, and the switch circuit 20 is capable of conducting or disconnecting the electrical path between each solar panel 110 and the output circuit 30, and the collection circuit 40 is capable of collecting the voltage signal of each solar panel 110, and by the processing circuit 60 in the awake state, at least one of controlling the switch circuit 20 to conduct or disconnect the electrical path between each solar panel 110 and the output circuit 30, controlling the rotation of the motor 50, and entering the sleep state is executed accordingly according to the voltage signal of each solar panel 110. Among them, the magnitude of the voltage signal of each solar panel 110 can reflect the strength of the solar radiation received by the solar panel 110. When the processing circuit 60 determines that the voltage signal of each solar panel 110 meets the tracking voltage condition, it determines the motor rotation strategy, and then controls the motor 50 to rotate accordingly according to the motor rotation strategy, so as to realize adaptive control of the rotation of the combined panel 10 according to the voltage signal of each solar panel 110, which can realize the optimal use of solar radiation, effectively improve the utilization efficiency of solar radiation, reduce the power consumption waste caused by the driving rotation of the motor 50, and realize low-power solar energy tracking of the solar device 1. Secondly, the processing circuit 60 can control the conduction or disconnection of the switch circuit 20 according to the voltage signal, so as to realize that when the voltage provided by the solar panel 110 cannot meet the charging demand of the external device, the electrical path between the solar panel 110 and the output circuit 30 is disconnected in time, effectively avoiding backflow leakage and improving the charging effect of the external device. Furthermore, the processing circuit 60 makes a judgment based on the voltage signal to control the processing circuit 60 to enter a sleep state when the solar device 1 does not need to further perform solar tracking, thereby avoiding unnecessary power waste, effectively reducing the power consumption of the solar device 1, and effectively realizing low-power operation of the solar device 1.

[0043] The above descriptions are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A solar energy device, characterized in that: include: Output circuit; At least two solar panels are used to output voltage signals and are combined side by side into a combined panel; A switch circuit, coupled between the at least two solar panels and the output circuit, the switch circuit being used to open or close an electrical path between each of the solar panels and the output circuit; A collection circuit, coupled to the at least two solar panels, for collecting a voltage signal of each of the solar panels; A motor, drivingly connected to the combined panel, for driving the combined panel to rotate so that the at least two solar panels can track solar radiation; A processing circuit is coupled to the at least two solar panels, the switch circuit and the motor, and is used to control the switch circuit to disconnect the electrical path between the at least two solar panels and the output circuit in the awake state, and then control the acquisition circuit to collect the voltage signal of each solar panel, and according to the voltage signal of each solar panel, correspondingly execute at least one of controlling the switch circuit to turn on or disconnect the electrical path between each solar panel and the output circuit, controlling the rotation of the motor, and entering a sleep state; wherein the processing circuit is used to determine the motor rotation strategy when it is determined that the voltage signal of each solar panel meets the tracking voltage condition, and then control the motor to rotate accordingly according to the motor rotation strategy.

2. The solar energy device according to claim 1, characterized in that: The switch circuit includes at least two first switches, and the at least two first switches correspond to the at least two solar panels one by one. Each of the first switches is coupled between the corresponding solar panel and the output circuit, and each of the first switches is coupled to the processing circuit.

3. The solar energy device according to claim 2, characterized in that: Each of the solar panels has a first positive terminal and a first negative terminal, and the output circuit has a second positive terminal and a second negative terminal; the first positive terminal of each solar panel is used to couple with the second positive terminal, the first negative terminal of each solar panel is coupled to ground, and the second negative terminal is coupled to ground; Each of the first switches is coupled between the first positive terminal and the second positive terminal of the corresponding solar panel.

4. The solar energy device according to claim 1, characterized in that: The acquisition circuit includes at least two analog-to-digital converters, and the at least two analog-to-digital converters correspond to the at least two solar panels one by one. Each of the analog-to-digital converters is coupled between the corresponding solar panel and the processing circuit, and is used to acquire the voltage signal of each solar panel and convert the voltage signal, and then send the converted voltage signal to the processing circuit.

5. The solar energy device according to claim 1, characterized in that: The tracking voltage condition includes that the voltage signal of each solar panel is greater than or equal to a first preset voltage value; The processing circuit is used to determine whether the voltage signal of each solar panel is greater than or equal to the first preset voltage value; The processing circuit is used to calculate the maximum difference between the voltage signals of the at least two solar panels when the voltage signal of each of the solar panels is greater than or equal to the first preset voltage value, and determine the motor rotation strategy that matches the maximum difference. The processing circuit is used to control the motor to rotate accordingly according to the motor rotation strategy.

6. The solar energy device according to claim 5, characterized in that: The processing circuit is used to determine the rotation direction and rotation duration of the motor based on the maximum difference, so as to determine the motor rotation strategy.

7. The solar energy device according to claim 6, characterized in that: The processing circuit is used to determine whether the maximum difference is greater than or equal to a first preset voltage difference and less than or equal to a second preset voltage difference; the first preset voltage difference is less than the second preset voltage difference; If the maximum difference is greater than or equal to the first preset voltage difference and less than the second preset voltage difference, the processing circuit is used to calculate the rotation duration according to the first coefficient and the maximum difference, and determine the rotation direction as the direction of the one with the highest voltage signal among the at least two solar panels; If the maximum difference is greater than the second preset voltage difference, the processing circuit is used to calculate the rotation duration according to the second coefficient and the maximum difference, and determine the rotation direction as the direction of the at least two solar panels with the highest voltage signal; The first coefficient is smaller than the second coefficient.

8. The solar energy device according to claim 5, characterized in that: The processing circuit is used to determine whether the number of times the motor is controlled to rotate in the current awake state is greater than or equal to a preset number after controlling the motor to rotate; if the number of times the motor rotates is greater than or equal to the preset number, the processing circuit is used to control the switch circuit to conduct the electrical path between each solar panel and the output circuit, and enter the sleep state.

9. The solar energy device according to claim 8, characterized in that: If the maximum difference is less than the first preset voltage difference, the processing circuit is used to control the switch circuit to conduct the electrical path between each solar panel and the output circuit and enter the sleep state.

10. The solar energy device according to claim 5, characterized in that: If the voltage signal of the first part of the solar panels among the at least two solar panels is greater than or equal to the first preset voltage value, and the voltage signal of the second part of the solar panels among the at least two solar panels is less than the first preset voltage value, the processing circuit is used to control the switch circuit to conduct the electrical path between the first part of the solar panels and the output circuit, and enter the sleep state.

11. The solar energy device according to claim 5, characterized in that: If the voltage signal of each of the solar panels is less than the first preset voltage value, the processing circuit enters the sleep state.

12. The solar energy device according to claim 1, characterized in that: The processing circuit is used for controlling the processing circuit to enter the awakening state when the sleep state continues for a preset sleep time period.

13. The solar energy device according to any one of claims 8 to 12, characterized in that: The processing circuit is used to clear the number of rotations of the motor to zero when entering the sleep state.

14. The solar energy device according to claim 1, characterized in that: The solar device includes a second switch and an output interface, the second switch is coupled between the output circuit and the output interface, and the second switch is coupled to the processing circuit; the second switch is used to turn on or off the electrical path between the output circuit and the output interface, the processing circuit is used to control the turning on or off of the second switch, and the output interface is used to couple to an external device to power the external device.

15. The solar energy device according to claim 14, characterized in that: The solar device further includes an operational amplifier circuit, an input end of the operational amplifier circuit is coupled between the second switch and the output interface, and an output end of the operational amplifier circuit is coupled to the processing circuit.

16. The solar energy device according to claim 1, characterized in that: The solar device includes a third switch, a charging circuit and a battery coupled in sequence, the third switch is coupled to the output circuit and the processing circuit, and the battery is coupled to the processing circuit; the processing circuit is used to control the third switch to be turned on or off, the charging circuit is used to perform corresponding voltage processing on the voltage it receives and output it to charge the battery, and the battery is used to store electrical energy to power the processing circuit.

17. The solar device according to claim 16, characterized in that: The processing circuit is used to determine whether the power value stored in the battery is less than or equal to the first power value, and if the power value stored in the battery is less than or equal to the first power value, control the third switch to be turned on to charge the battery, and control the motor to drive the combination board to rotate to a preset posture; If the amount of electricity stored in the battery is greater than or equal to a second amount of electricity, the third switch is controlled to be disconnected to stop charging the battery; the second amount of electricity is greater than the first amount of electricity.

18. The solar energy device according to claim 1, characterized in that: The solar device includes functional components, and the processing circuit is used to couple the functional components to achieve corresponding functions.

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