Photovoltaic power generation device and power utilization system

Abstract

The utility model provides a photovoltaic power generation device and a power utilization system. The photovoltaic power generation device comprises a photovoltaic module (100) and a heating module (200). The photovoltaic module comprises a shell and a photovoltaic panel (120) arranged in the shell, the shell comprises an upper shell (110) and a lower shell (130) which are connected with each other, and the upper shell is arranged to surround the photovoltaic panel, allow sunlight to irradiate the photovoltaic panel and be attached to the photovoltaic panel to form a seal surrounding the photovoltaic panel. And the heating module comprises a heating piece (210) at the bottom of the photovoltaic panel and a sunlight sensor (240) arranged outside the shell. The photovoltaic panel and the sunlight sensor are in signal connection with the heating piece, so that the heating piece is started and stopped according to light signals received by the sunlight sensor and the power generation state of the photovoltaic panel. Whether power can be generated or not is judged through light signals, whether accumulated snow is completely melted or not is judged through power generation state signals, the heating piece can be automatically started and stopped and remove the accumulated snow on the photovoltaic panel, starting at night and when no accumulated snow exists is avoided, energy is saved, and meanwhile the photovoltaic power generation device can work normally when snowy.

Description

Technical Field

[0001] This disclosure relates to the field of power generation equipment technology, and more particularly to a photovoltaic power generation device. This disclosure also relates to an electricity system using the photovoltaic power generation device. Background Technology

[0002] With the escalating global energy crisis and increasingly severe environmental pollution, the development and utilization of renewable energy are receiving growing attention. Photovoltaic power generation, which converts solar energy into electricity, is a clean and renewable energy technology that has garnered significant interest due to its low carbon emissions and environmental friendliness. However, photovoltaic power generation devices often encounter the problem of being unable to generate electricity due to snow cover in cold regions and during winter, severely impacting the photoelectric conversion efficiency of photovoltaic panels and the stability of power supply.

[0003] Traditional photovoltaic (PV) power generation systems often overlook the impact of snow accumulation on power generation efficiency during design. Snow can obstruct the surface of PV panels, reducing the amount of sunlight received and thus lowering power generation efficiency. Furthermore, the weight of snow can cause physical damage to the PV panels, increasing maintenance costs. In existing technologies, snow removal typically involves manual or mechanical methods. Manual removal incurs significant labor costs, while mechanical removal can damage the PV panels due to the unpredictable force applied. While using a vibration device under the PV panel to remove snow can avoid damage, it cannot remove ice from the panel when ice has formed. Snow adhering to ice still impacts the power generation efficiency of the PV panel.

[0004] Therefore, there is a need for a photovoltaic power generation device that can automatically remove snow and ice from photovoltaic panels without damaging them. Utility Model Content

[0005] One of the technical problems to be solved by this disclosure is: how to provide a photovoltaic power generation device that can automatically remove snow and ice from photovoltaic panels without damaging the photovoltaic panels.

[0006] To address the aforementioned technical problems, a first aspect of this disclosure provides a photovoltaic power generation device, comprising: a photovoltaic module and a heating module. The photovoltaic module includes a housing and a photovoltaic panel disposed within the housing. The housing includes an upper shell and a lower shell connected to each other, the upper shell being configured to surround the photovoltaic panel and allow sunlight to irradiate it. The upper shell is abutted against the photovoltaic panel to form a seal around it. The heating module includes a heating element disposed within the housing and abutting the bottom of the photovoltaic panel, and a sunlight sensor disposed outside the housing. The photovoltaic panel and the sunlight sensor are respectively signal-connected to the heating element, causing the heating element to start and stop according to the light signal received by the sunlight sensor and the power generation status of the photovoltaic panel.

[0007] In some embodiments, the heating module further includes a battery for supplying electrical energy to the heating element, the battery being connected to the photovoltaic panel to charge the battery when the photovoltaic panel generates electricity.

[0008] In some embodiments, the heating module further includes a temperature sensor disposed below and connected to the heating element, the temperature sensor being able to monitor the temperature of the heating element and control the start and stop of the heating element.

[0009] In some embodiments, the heating module further includes a controller, and the heating element and sunlight sensor are connected to the controller to send data to the controller and be controlled by the controller.

[0010] In some embodiments, a first sealing element is provided between the upper casing and the photovoltaic panel, surrounding the photovoltaic panel, to seal the gap between the upper casing and the photovoltaic panel.

[0011] In some embodiments, a second sealing element is provided between the lower housing and the photovoltaic panel, surrounding the photovoltaic panel, to seal the gap between the lower housing and the photovoltaic panel.

[0012] In some embodiments, grooves surrounding the upper and lower shells are provided in the upper and lower shells respectively, and a third sealing element is provided in the grooves to seal the gap between the upper and lower shells when the upper and lower shells are connected.

[0013] In some embodiments, the bottom of the lower housing is provided with a connector that penetrates the lower housing and connects the inside and outside of the housing, and the sunlight sensor passes through the connector to connect to the heating element.

[0014] In some embodiments, the lower shell is provided with at least one connecting portion that protrudes from the bottom of the lower shell and extends downward, the connecting portion being configured to fix the photovoltaic power generation device to the mounting base.

[0015] A second aspect of this disclosure provides an electricity system that includes the photovoltaic power generation device described above.

[0016] Through the above technical solution, the photovoltaic power generation device provided in this disclosure can remove snow and ice from the photovoltaic panel without damaging it by using a heating element located below the photovoltaic panel. In actual use, when the light sensor in this photovoltaic power generation device receives a long-term light signal, indicating sufficient sunlight for the device to generate electricity, the light sensor sends a start signal to the heating element. When the photovoltaic panel does not generate electricity or the generated current is weak, the photovoltaic panel sends a start signal to the heating element. When the heating element receives start signals from both the photovoltaic panel and the light sensor simultaneously, it begins to heat to melt the snow on the photovoltaic panel until the snow is melted enough for the photovoltaic panel to generate sufficient current and voltage. When the photovoltaic panel stops sending start signals, the heating element stops working, and the snow removal process is complete. The upper shell fits tightly to the photovoltaic panel to form a seal, preventing water from the melted snow and ice from flowing into the casing, thus protecting the components in the heating module from damage by the flowing water. This invention not only automatically removes snow and ice from photovoltaic panels using heating elements and light sensors, but also confirms the timing of heating element activation and deactivation using signals from light sensors and photovoltaic panels. This avoids activating heating at night or in extremely poor sunlight conditions, and also avoids continuing to heat after removing snow and ice, thereby saving energy. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure disclosed in the embodiments of this disclosure;

[0019] Figure 2 This is an exploded structural diagram of an embodiment of the present disclosure;

[0020] Figure 3 This is a schematic diagram of the front cross-sectional structure disclosed in an embodiment of this disclosure;

[0021] Figure 4 This is an exploded structural diagram of the photovoltaic module disclosed in this embodiment;

[0022] Figure 5 An exploded view of the heating module disclosed in this embodiment.

[0023] Explanation of reference numerals in the attached figures:

[0024] 100. Photovoltaic module; 110. Upper casing; 120. Photovoltaic panel; 121. First seal; 122. Second seal; 130. Lower casing; 131. Third seal; 132. Connector; 200. Heating module; 210. Heating element; 220. Battery; 230. Temperature sensor; 240. Sunlight sensor; 250. Controller. Detailed Implementation

[0025] The embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this disclosure by way of example, but should not be used to limit the scope of this disclosure. This disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0026] These embodiments are provided to make the disclosure thorough and complete, and to fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0027] It should be noted that, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] Furthermore, the terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after the word, and do not exclude the possibility of encompassing other elements as well.

[0029] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installed," "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 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 disclosure depending on the specific circumstances. When a particular device is described as being located between a first device and a second device, an intermediary device may or may not be present between the particular device and the first or second device.

[0030] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0031] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0032] To address the aforementioned technical problems, the first aspect of this disclosure provides a photovoltaic power generation device, such as... Figure 1 , 2 As shown in Figures 4 and 5, the module includes a photovoltaic module 100 and a heating module 200. The photovoltaic module 100 includes a housing and a photovoltaic panel 120 disposed within the housing. The housing includes an upper shell 110 and a lower shell 130 connected to each other. The upper shell 110 is configured to surround the photovoltaic panel 120 and allow sunlight to reach it. The upper shell 110 is tightly fitted to the photovoltaic panel 120 to form a seal around the photovoltaic panel 120. The heating module 200 includes a heating element 210 disposed within the housing and attached to the bottom of the photovoltaic panel 120, and a sunlight sensor 240 disposed outside the housing. The sunlight sensor 240 and the photovoltaic panel 120 are respectively signal-connected to the heating element 210, causing the heating element 210 to start and stop according to the light signal received by the sunlight sensor 240 and the power generation status of the photovoltaic panel 120.

[0033] Through the above technical solution, the photovoltaic power generation device provided in this disclosure can remove snow and ice from the photovoltaic panel 120 without damaging the photovoltaic panel 120 by using a heating element 210 located below the photovoltaic panel 120. In actual use, when the sunlight sensor 240 in this photovoltaic power generation device receives a long-lasting sunlight signal with sufficient intensity to enable the photovoltaic power generation device to generate electricity, and the amount of electricity generated is greater than the amount of electricity consumed by the heating element 210, the sunlight sensor 240 sends an activation signal to the heating element 210. When the photovoltaic panel 120 does not generate electricity or the generated current is weak, the photovoltaic panel 120 sends an activation signal to the heating element 210. When the heating element 210 receives activation signals from both the photovoltaic panel 120 and the sunlight sensor 240 simultaneously, the heating element 210 begins heating to melt the snow on the photovoltaic panel 120 until the snow is melted enough for the photovoltaic panel 120 to generate electricity normally and produce a sufficiently strong current and voltage. When the photovoltaic panel 120 stops sending activation signals, the heating element 210 stops working, and the snow removal process is completed. The upper casing 110 and the photovoltaic panel 120 are tightly fitted together to form a seal, preventing water from melting snow and ice from flowing into the casing and thus protecting the components in the heating module 200 from damage. This disclosure not only automatically removes snow and ice from the photovoltaic panel 120 using the heating element 210 and the sunlight sensor 240, but also uses signals from the sunlight sensor 240 and the photovoltaic panel 120 to determine when the heating element 210 starts and stops. This avoids starting heating at night or in extremely poor sunlight conditions, and also avoids continuing to heat after removing snow and ice, thereby saving energy.

[0034] The heating element 210 can be any component with a heating function capable of heating a portion of the photovoltaic panel 120 that can receive sunlight and generate electricity, such as a heating wire and an electric heating film. In some embodiments, such as Figure 2 As shown, the heating element 210 is an electric heating wire coiled below the photovoltaic panel 120 and whose heating area covers the photovoltaic panel 120.

[0035] The upper casing 110 can be any shape that can be configured to surround the photovoltaic panel 120 and allow sunlight to shine onto the photovoltaic panel 120. In some embodiments, such as Figure 2 As shown, the top of the upper shell 110 has a through hole with the same area as the photovoltaic panel 120.

[0036] In some embodiments, such as Figure 2 and Figure 5As shown, the heating module 200 also includes a battery 220 for supplying electrical energy to the heating element 210. The battery 220 is connected to the photovoltaic panel 120 so that it can be charged when the photovoltaic panel 120 generates electricity. The battery 220 is connected to the electrical equipment powered by this photovoltaic power generation device to transmit electrical energy. When this photovoltaic power generation device is working, the photovoltaic panel 120 receives sunlight to convert solar energy into electrical energy and stores the electrical energy in the battery 220. Once the battery 220 is fully charged, it supplies power to the electrical equipment. Through the battery 220, electrical energy can be provided to the heating element 210 when the photovoltaic panel 120 cannot generate electricity, so that the heating element 210 can completely melt the snow on the photovoltaic panel 120 so that the photovoltaic power generation device can work normally. The battery 220 can be any type of battery with sufficient charge to completely melt the snow so that the photovoltaic panel 120 can start generating electricity and can be housed in a casing.

[0037] In some embodiments, such as Figure 2 and Figure 5 As shown, the heating module 200 also includes a temperature sensor 230 disposed below and connected to the heating element 210. This temperature sensor monitors the temperature of the heating element 210 and controls its start / stop. When the heating element 210 in this photovoltaic power generation device is activated to melt snow, the temperature sensor 230 monitors the temperature of the heating element 210 and sends a shutdown signal when the temperature is too high, thus shutting down the heating element 210 and preventing overheating damage to the photovoltaic panel 120. When the temperature of the heating element 210 drops to a reasonable range, the temperature sensor 230 stops sending shutdown signals, and the heating element 210 restarts and continues the snow removal process.

[0038] In some embodiments, such as Figure 2 and Figure 5 As shown, the heating module 200 also includes a controller 250, and the heating element 210 and the sunlight sensor 240 are connected to the controller 250 so that they can send data to the controller 250 and be controlled by the controller 250.

[0039] In some embodiments, the heating element 210, battery 220, temperature sensor 230, and sunlight sensor 240 are connected to the controller 250. The controller 250 can be any type of component with the functions of receiving, processing, and transmitting signals, such as a circuit board. By connecting the heating element 210, battery 220, temperature sensor 230, and sunlight sensor 240 to the controller 250, the controller 250 can control the opening and closing of the heating element 210 based on the obtained data. This ensures that the heating element 210 will not operate when photovoltaic power generation conditions are not available or after snow and ice have completely melted, saving energy. Furthermore, it can promptly shut down the heating element 210 when the temperature of the heating element 210 and photovoltaic panel 120 becomes too high to prevent damage to the heating element 210 and photovoltaic panel 120 due to overheating.

[0040] In some embodiments, such as Figure 2 , Figure 3 and Figure 4 As shown, a first sealing member 121 is provided around the photovoltaic panel 120 between the upper shell 110 and the photovoltaic panel 120 to seal the gap between the upper shell 110 and the photovoltaic panel 120. The first sealing member 121 ensures that snow and ice on the photovoltaic panel 120, after melting, will not flow through the gap between the upper shell 110 and the photovoltaic panel 120 into the heating module 200 below the photovoltaic panel 120 and damage the electronic components in the heating module 200.

[0041] In some embodiments, such as Figure 2 , Figure 3 and Figure 4 As shown, a second sealing member 122 is provided around the photovoltaic panel 120 between the lower housing 130 and the photovoltaic panel 120 to seal the gap between the lower housing 130 and the photovoltaic panel 120. The second sealing member 122 allows the photovoltaic panel 120 and the lower housing 130 to form a sealed space, thereby ensuring that the heating module 200 installed in this sealed space is isolated from the external environment, especially from water, to prevent damage to the electronic components in the heating module 200.

[0042] In some embodiments, such as Figure 2 , Figure 3 and Figure 4As shown, grooves surrounding the upper shell 110 and lower shell 130 are correspondingly provided in the upper shell 110 and lower shell 130, respectively. A third sealing element 131 is provided in the groove to seal the gap between the upper shell 110 and lower shell 130 when they are connected. The third sealing element 131 ensures a tight connection between the upper shell 110 and lower shell 130, preventing water and other substances from the external environment that could affect the components inside the shell from entering, thereby ensuring that the photovoltaic power generation device can operate normally in various environments, such as rainy and snowy weather.

[0043] In some embodiments, such as Figure 1 , Figure 2 and Figure 3 As shown, the bottom of the lower housing 130 is provided with a connector 132 that penetrates the lower housing 130 and connects the inside of the housing to the outside. The sunlight sensor 240 passes through the connector 132 to connect to the heating element 210. The connector 132 can be any type of waterproof connector that can be waterproof and connect the inside of the housing to the outside. Through the connector 132, the sunlight sensor 240 and the controller 250, which are set in the external environment, can be connected while ensuring the sealing of the housing, preventing water from the external environment from entering the housing, thereby ensuring the normal operation of this photovoltaic power generation device.

[0044] In some embodiments, such as Figure 1 and Figure 3 As shown, the lower shell 130 is provided with at least one connecting portion protruding from the bottom of the lower shell 130 and extending downward. This connecting portion is configured to fix the photovoltaic power generation device to the mounting base. By providing the connecting portion at the bottom of the lower shell 130, the photovoltaic power generation device can be fixed to its power supply equipment, thereby reducing the amount of wiring required to connect the photovoltaic power generation device and ensuring that the power system including the electrical equipment and the photovoltaic power generation device has a compact structure and occupies little space.

[0045] A second aspect of this disclosure provides an electricity system including the aforementioned photovoltaic power generation device. The electricity system also includes electrical equipment connected to the photovoltaic power generation device for being powered by it. This electrical equipment can be any device capable of being powered by the photovoltaic power generation device for operation, such as a traffic light. In some embodiments, the photovoltaic power generation device is fixedly mounted on the electrical equipment.

[0046] In an external environment where the photovoltaic power generation device can generate electricity normally, the photovoltaic panel 120 in the photovoltaic power generation device converts solar energy into electrical energy to power electrical equipment, while storing excess electricity in the battery 220. In an external environment where the photovoltaic power generation device cannot generate electricity, the photovoltaic panel 120 in the photovoltaic power generation device can no longer generate electricity, the battery 220 starts to power the electrical equipment, and the controller 250 in the photovoltaic power generation device collects data from the sunlight sensor 240 and the photovoltaic panel 120. When the sunlight intensity is sufficient for power generation and the photovoltaic panel 120 does not generate electricity or the current generated by the photovoltaic panel is less than the calibrated intensity, the controller 250 determines that the photovoltaic panel 120 is blocked by snow and ice, and activates the heating element set below the photovoltaic panel 120. After the photovoltaic panel 120 can generate electricity normally, the controller 250 then controls the heating element 210 to turn off. Meanwhile, during the heating process of the heating element 210 in the photovoltaic power generation device, the controller 250 monitors the temperature of the heating element 210 and the photovoltaic panel 120 by receiving parameters from the temperature sensor 230. When the temperature of the heating element 210 and the photovoltaic panel 120 exceeds the set value, the controller 250 shuts off the heating element 210, thereby ensuring that the heating element 210 and the photovoltaic panel 120 are not damaged due to excessive temperature. Once the temperature drops back to the normal range, if snow melting is still not complete, the controller 250 restarts the heating element 210 until snow melting is complete. By using the aforementioned photovoltaic power generation device, this power system can maintain the normal operation of electrical equipment under various external environments, saving energy while improving the reliability of the power system.

[0047] The embodiments of this disclosure have now been described in detail. To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0048] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any manner.

Claims

1. A photovoltaic power generation device, characterized by comprising: The application relates to a photovoltaic module (100) comprising: a photovoltaic panel (120) arranged in the housing, wherein the housing comprises an upper housing (110) and a lower housing (130) connected to each other, the upper housing (110) is arranged to enclose the photovoltaic panel (120) and allow sunlight to irradiate on the photovoltaic panel (120), and the photovoltaic panel (120) is attached to the upper housing (110) to form a seal around the photovoltaic panel (120); a heating module (200) comprising a heating element (210) arranged in the housing and attached to the bottom of the photovoltaic panel (120), and a sunlight sensor (240) arranged outside the housing, the sunlight sensor (240) and the photovoltaic panel (120) are respectively signal connected to the heating element (210), and the heating element (210) is started and stopped according to the light signal received by the sunlight sensor (240) and the power generation state of the photovoltaic panel (120).

2. The photovoltaic power device of claim 1, wherein, The heating module (200) further comprises a storage battery (220) for supplying electric energy to the heating element (210), and the storage battery (220) is connected to the photovoltaic panel (120) to enable the storage battery (220) to be charged when the photovoltaic panel (120) generates electricity.

3. The photovoltaic power device of claim 1, wherein, The heating module (200) further comprises a temperature sensor (230) arranged below the heating element (210) and connected to the heating element (210), which can monitor the temperature of the heating element (210) and control the start and stop of the heating element (210).

4. The photovoltaic power device of claim 1, wherein, The heating module (200) further comprises a controller (250), and the heating element (210) and the sunlight sensor (240) are connected to the controller (250) to enable data to be sent to the controller (250) and controlled by the controller (250).

5. The photovoltaic power device of claim 1, wherein, A first sealing element (121) is arranged between the upper housing (110) and the photovoltaic panel (120) to seal the gap between the upper housing (110) and the photovoltaic panel (120).

6. The photovoltaic power device of claim 1, wherein, A second sealing element (122) is arranged between the lower housing (130) and the photovoltaic panel (120) to seal the gap between the lower housing (130) and the photovoltaic panel (120).

7. The photovoltaic power device of claim 1, wherein, Corresponding recesses are arranged in the upper housing (110) and the lower housing (130) around the upper housing (110) and the lower housing (130), and a third sealing element (131) is arranged in the recess to seal the gap between the upper housing (110) and the lower housing (130) when the upper housing (110) and the lower housing (130) are connected.

8. The photovoltaic power device of claim 1, wherein, The bottom of the lower housing (130) is provided with a joint (132) penetrating through the lower housing (130) and connecting the inside and outside of the housing, and the sunlight sensor (240) penetrates through the joint (132) to be connected to the heating element (210).

9. The photovoltaic power device of claim 1, wherein, At least one connecting portion protruding from the bottom of the lower shell (130) and extending downward is arranged on the lower shell (130), and the connecting portion is arranged to be capable of fixing the photovoltaic power generation device to a mounting base.

10. A power utilization system characterized by, The photovoltaic power generation device comprises the photovoltaic power generation device according to any one of claims 1-9.

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