A portable photovoltaic energy storage integrated device

Abstract

This invention relates to the field of photovoltaic device technology and discloses a conveniently movable photovoltaic energy storage integrated device, including a mobile platform and a battery box. The device further includes: a support frame; photovoltaic panels; a winding mechanism, of which two sets are provided and installed on both sides of the support frame; a light-transmitting film, on which the two sets of winding mechanisms are wound, the light-transmitting film being located on the outside of the photovoltaic panels and protecting them; a heating tank and a cooling tank. By setting up a heating tank and a cooling tank connected to heat exchange pipelines, and utilizing a temperature control mechanism based on the principle of gasbag thermal expansion and contraction to automatically trigger liquid circulation, the device can actively cool the battery box and photovoltaic panels during the high temperatures of the day and actively heat them during the low temperatures of the night. This intelligently regulates the operating temperature, improving power generation and charging / discharging efficiency, effectively delaying the aging and damage of batteries and photovoltaic materials caused by temperature stress, and significantly extending the service life of the entire device.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic device technology, and more specifically to a conveniently portable photovoltaic energy storage integrated device. Background Technology

[0002] Photovoltaic energy storage battery integrated devices are integrated energy devices that tightly combine photovoltaic power generation systems with energy storage batteries. By integrating core components such as photovoltaic modules, energy storage batteries, inverters, and energy management systems, they form a complete power generation, storage, and power supply solution. They are widely used in residential, industrial, commercial, and grid-level scenarios to achieve efficient utilization, stable storage, and flexible allocation of solar energy.

[0003] Despite the significant advantages of such devices in promoting the use of renewable energy, they still face a series of technical challenges and environmental adaptability issues during actual deployment and operation, which directly affect their power generation efficiency, equipment reliability, and service life.

[0004] First, photovoltaic modules are typically exposed to the outdoor environment for extended periods, and their surfaces easily accumulate dust, dirt, and other coverings, obstructing incident light and significantly reducing photoelectric conversion efficiency. Furthermore, photovoltaic panels exposed to the elements may be impacted or scratched by external objects (dust particles), causing glass breakage, microcracks in the cells, or structural damage, severely impacting power generation capacity and safe operation.

[0005] Secondly, during daytime power generation, the photovoltaic modules and energy storage batteries generate high operating temperatures due to continuous exposure to solar radiation and the charging and discharging process. High temperatures not only reduce the photoelectric conversion efficiency of the photovoltaic modules but also accelerate the aging of the energy storage batteries, shortening their cycle life. Furthermore, prolonged high-temperature operation may affect the stability and reliability of the battery management system and other electronic components.

[0006] Furthermore, at night or in low-temperature environments, the device stops generating electricity, and the energy storage battery is in a discharging state, while both the photovoltaic modules and the battery are exposed to low temperatures. Low temperatures reduce the rate of internal chemical reactions in the battery, leading to a decrease in battery output performance and affecting power supply stability. At the same time, the physical properties of photovoltaic modules, especially their encapsulation materials and cells, become brittle at low temperatures. If the module itself already has microscopic cracks, the material shrinkage stress caused by a sudden drop in temperature can easily cause the cracks to propagate into larger-scale damage, further weakening the structural integrity and power generation efficiency of the module.

[0007] In summary, existing photovoltaic energy storage battery integrated devices still have significant shortcomings in dealing with complex environmental factors such as dust accumulation, foreign object impact, and alternating high and low temperatures, which restricts their overall energy efficiency, environmental adaptability, and long-term operational reliability. Therefore, there is an urgent need for a technical solution that can systematically improve the above-mentioned problems in order to enhance the overall performance and service life of photovoltaic energy storage integrated devices. Summary of the Invention

[0008] The purpose of this invention is to address the shortcomings of existing technologies by providing a convenient and portable photovoltaic energy storage integrated device, thereby improving power generation efficiency, preventing equipment damage, and extending service life.

[0009] The objective of this invention can be achieved through the following technical solutions: A portable photovoltaic energy storage integrated device includes a mobile platform and a battery box, and the device further includes: The bracket is mounted on top of the battery compartment; Photovoltaic panels, which are mounted on a bracket; The winding mechanism has two sets, which are respectively installed on both sides of the bracket; A light-transmitting film is wound up on the two sets of winding mechanisms. The light-transmitting film is located on the outside of the photovoltaic panel and protects the photovoltaic panel. A heating tank and a cooling tank are respectively installed on the moving platform. Both the heating tank and the cooling tank contain heat exchange fluid. The heat exchange components on the battery box and the bracket are connected to the heating tank and the cooling tank.

[0010] As a further embodiment of the present invention: the bracket includes a rotating component, a telescopic component, and a mounting frame. The rotating component is mounted on the top of the battery box. The output end of the rotating component is provided with a base plate. One end of the telescopic component is hinged to the base plate. The base plate is provided with several support plates. The mounting frame is hinged to several support plates. The other end of the telescopic component is hinged to the mounting frame. The photovoltaic panel is fixedly mounted on the mounting frame.

[0011] As a further embodiment of the present invention: the winding mechanism includes a side plate, a winding roller and a tension roller. The side plate is provided in two sets, and the two sets of side plates are respectively fixed on both sides of the mounting frame. The winding roller and the two sets of tension rollers are rotatably installed between the two sets of side plates. The light-transmitting film passes around the two sets of tension rollers and is wound on the winding roller.

[0012] As a further aspect of the present invention: a sealing box is also installed between the two sets of side plates. The sealing box has a movable cavity and an installation cavity respectively. The installation cavity is located between the movable cavity and the light-transmitting membrane. A light-transmitting plate is provided on the outside of the movable cavity. An airbag is provided inside the movable cavity. One side of the airbag is fixed to the inside of the light-transmitting plate. A movable plate is provided on the other side of the airbag. The movable plate passes through the sealing box and abuts against the light-transmitting membrane. The movable plate is located between the two sets of tension rollers. Two sets of conductive blocks II and two sets of conductive blocks I are symmetrically installed at the top and bottom of the installation cavity, respectively. A contact block is provided on the movable plate. A water pump is installed in both the heating tank and the cooling tank. The two sets of conductive blocks I are connected to the circuit of the water pump in the cooling tank. The two sets of conductive blocks II are connected to the circuit of the water pump in the heating tank.

[0013] As a further aspect of the present invention: two sets of heat exchange tubes are installed on the outside of the battery box, and two sets of heat exchange tubes are installed inside the mounting frame. The two sets of heat exchange tubes are connected to the water pumps in the heating tank and the cooling tank, respectively. A heating element is installed on the heating tank, and a cooling element is installed on the cooling tank. A heat insulation cover is also placed over the cooling tank.

[0014] As a further aspect of the present invention: the photovoltaic panel has an electrical board and a conductive strip installed sequentially from the inside to the outside in the recessed area on the surface of the photovoltaic panel, and the light-transmitting film is located outside the conductive strip.

[0015] As a further embodiment of the present invention: a driving component is installed on the side plate, the driving component is connected to the winding roller, a scraper is provided between the two sets of side plates, the scraper abuts against the surface of the light-transmitting film, a processor is installed in the battery box, the processor is connected to the driving component, and the power board is connected to the processor.

[0016] As a further aspect of the present invention: a light-transmitting film and a protective film are respectively wound onto two sets of winding rollers, and the light-transmitting film and the protective film are spliced ​​together.

[0017] The beneficial effects of this invention are: (1) By setting a rollable light-transmitting film on the outside of the photovoltaic panel, the present invention can effectively isolate dust, hail and other foreign objects from direct contact with the photovoltaic panel. While providing physical protection and preventing the panel from being scratched and cracked, it does not affect the light transmittance, ensures the power generation efficiency, and realizes convenient cleaning and maintenance of the photovoltaic panel surface.

[0018] (2) By setting up a heating tank and a cooling tank connected to the heat exchange pipeline, and using a temperature control mechanism based on the principle of thermal expansion and contraction of airbags to automatically trigger the liquid circuit circulation, the present invention can actively cool the battery box and photovoltaic panel when the temperature is high during the day and actively heat them when the temperature is low at night, thereby intelligently adjusting the working temperature, which not only improves the power generation and charging and discharging efficiency, but also effectively delays the aging and damage of the battery and photovoltaic materials caused by temperature stress, and significantly extends the service life of the entire device.

[0019] (3) The present invention utilizes the conductive strips and the power board set on the surface of the photovoltaic panel to form a dust sensing circuit. By detecting the change in circuit resistance (current), the degree of dust accumulation on the light-transmitting film is sensed, and then the winding mechanism is automatically controlled to replace the film segment, realizing the intelligent self-cleaning of the protective film, ensuring that the photovoltaic panel is continuously in a high light-transmitting state and maintaining efficient power generation.

[0020] (4) By setting up an independent protective film and splicing it with the light-transmitting film, the present invention can automatically cover the outside of the photovoltaic panel with a high-strength protective film when the light-transmitting film is abnormally and violently deformed due to strong winds, etc., providing a higher level of impact protection and enhancing the environmental adaptability and reliability of the device in harsh weather conditions.

[0021] (5) In this invention, the airbag driving the movable plate serves as both a temperature sensor and a membrane tension regulator. Its thermal expansion and contraction not only triggers the temperature control cycle, but also dynamically adjusts the tension of the light-transmitting membrane, preventing the membrane material from loosening at high temperatures or becoming overly tight at low temperatures and thus being damaged. This achieves a multi-functional integrated design with an ingenious structure and automatic response. Attached Figure Description

[0022] The invention will now be further described with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the support structure in this invention; Figure 3 This is a schematic diagram of the winding mechanism structure in this invention; Figure 4 This is a schematic diagram of the structure of the light-transmitting film and the protective film in this invention; Figure 5 This is a schematic diagram of the internal structure of the sealed box in this invention; Figure 6 This is a schematic diagram of the structure of the energized plate and conductive strip in this invention.

[0024] In the picture: 1. Moving platform; 2. Battery box; 21. Heat exchanger tube one; 3. Bracket; 31. Rotating component; 32. Base plate; 321. Support plate; 33. Telescopic component; 34. Mounting frame; 341. Heat exchanger tube two; 4. Photovoltaic panel; 5. Winding mechanism; 51. Side plate; 52. Winding roller; 521. Drive component; 53. Tensioning roller; 54. Sealing box; 541. Light-transmitting plate; 542. Movable cavity; 543. Mounting cavity; 544. Conductive block one; 545. Conductive block two; 56. Airbag; 57. Movable plate; 571. Contact block; 55. Scraper; 6. Light-transmitting film; 7. Protective film; 8. Electrical board; 9. Conductive strip; 10. Heating tank; 101. Heating component; 11. Cooling tank; 111. Heat insulation cover; 112. Cooling component. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] like Figures 1-5 As shown, a portable photovoltaic energy storage integrated device includes a mobile platform 1 and a battery box 2. The device also includes: Bracket 3 is installed on top of battery box 2; Photovoltaic panel 4 is mounted on bracket 3; The winding mechanism 5 has two sets, and the two sets of winding mechanisms 5 are respectively installed on both sides of the bracket 3; The light-transmitting film 6 is wound on two sets of winding mechanisms 5. The light-transmitting film 6 is located on the outside of the photovoltaic panel 4 and protects the photovoltaic panel 4. Heating tank 10 and cooling tank 11 are respectively installed on the moving platform 1. Both heating tank 10 and cooling tank 11 contain heat exchange fluid. The heat exchange components on the battery box 2 and the bracket 3 are connected to heating tank 10 and cooling tank 11.

[0027] The bracket 3 includes a rotating part 31, a telescopic part 33, and a mounting frame 34. The rotating part 31 is mounted on the top of the battery box 2. The output end of the rotating part 31 is provided with a base plate 32. One end of the telescopic part 33 is hinged to the base plate 32. Several support plates 321 are provided on the base plate 32. The mounting frame 34 is hinged to the several support plates 321. The other end of the telescopic part 33 is hinged to the mounting frame 34. The photovoltaic panel 4 is fixedly mounted on the mounting frame 34.

[0028] The winding mechanism 5 includes a side plate 51, a winding roller 52, and a tension roller 53. The side plate 51 is provided in two sets, and the two sets of side plates 51 are respectively fixed on both sides of the mounting frame 34. The winding roller 52 and the two sets of tension rollers 53 are rotatably installed between the two sets of side plates 51. The light-transmitting film 6 passes around the two sets of tension rollers 53 and is wound on the winding roller 52.

[0029] In one embodiment, the light-transmitting film 6 has properties such as high light transmittance and high temperature resistance.

[0030] In practical applications, the angle and position of the photovoltaic panel 4 can be adjusted using the rotating component 31 and the telescopic component 33, ensuring that the photovoltaic panel 4 always follows the direction of sunlight, thereby increasing power generation. The mobile platform 1 facilitates the movement of the entire photovoltaic energy storage integrated device, enhancing convenience. Covering the photovoltaic panel 4 with a high-transmittance, high-temperature-resistant transparent film 6 effectively protects the photovoltaic panel 4 from impacts or scratches, and prevents dust from directly contacting it, thus ensuring the photovoltaic panel 4's power generation capacity and safe operation. The high-temperature resistance of the transparent film 6 protects the photovoltaic panel from normal operation in high-temperature environments and prevents the aging of the photovoltaic panel 4's encapsulation materials. Simultaneously, the transparent film 6 reduces incident light reflection and increases the photovoltaic panel 4's light absorption, thereby increasing power generation. Furthermore, the transparent film 6 absorbs near-infrared light and converts it into heat, automatically de-icing and removing snow in low-temperature or cold environments, preventing power generation loss and avoiding damage to the photovoltaic panel 4 under heavy pressure. The light-transmitting film 6 is wound up by the winding mechanism 5, so that the light-transmitting film 6 located at the photovoltaic panel 4 can be replaced at any time. On the one hand, this avoids the accumulation of dust on the light-transmitting film 6, which affects the power generation efficiency of the photovoltaic panel 4; on the other hand, it avoids the light-transmitting film 6 being exposed to the outside for a long time, which reduces its service life. By setting up a heating tank 10 and a cooling tank 11, the battery box 2 and photovoltaic panel 4 are cooled by the cooling tank 11 during daytime power generation, thereby ensuring the power generation efficiency of the photovoltaic panel 4 and preventing the energy storage battery in the battery box 2 from aging; at night or in low-temperature environments, the battery box 2 and photovoltaic panel 4 are heated by the heating tank 10, thereby preventing the battery output performance from degrading, ensuring power supply stability, and preventing the encapsulation material of the photovoltaic panel 4 from becoming brittle and cracking, thus ensuring the integrity of the overall structure of the photovoltaic panel 4 and its power generation efficiency.

[0031] Furthermore, a sealing box 54 is installed between the two sets of side plates 51. The sealing box 54 has a movable cavity 542 and an installation cavity 543 respectively. The installation cavity 543 is located between the movable cavity 542 and the light-transmitting membrane 6. A light-transmitting plate 541 is provided on the outside of the movable cavity 542. An airbag 56 is provided inside the movable cavity 542. One side of the airbag 56 is fixed to the inside of the light-transmitting plate 541. A movable plate 57 is provided on the other side of the airbag 56. The movable plate 57 passes through the sealing box 54 and abuts against the light-transmitting membrane 6. The movable plate 57 is located between the two sets of tension rollers 53. Two sets of conductive blocks 2 545 and two sets of conductive blocks 1 544 are symmetrically installed in the upper and lower parts of the installation cavity 543. A contact block 571 is provided on the movable plate 57. Water pumps are installed in both the heating tank 10 and the cooling tank 11. The two sets of conductive blocks 1 544 are connected to the circuit of the water pump in the cooling tank 11, and the two sets of conductive blocks 2 545 are connected to the circuit of the water pump in the heating tank 10.

[0032] Two sets of heat exchange tubes 21 are installed on the outside of the battery box 2, and two sets of heat exchange tubes 341 are installed inside the mounting bracket 34. The two sets of heat exchange tubes 21 and 341 are respectively connected to the water pumps in the heating tank 10 and the cooling tank 11. The heating tank 10 is equipped with a heating element 101, and the cooling tank 11 is equipped with a cooling element 112. The cooling tank 11 is also covered with a heat insulation cover 111.

[0033] In practical application, during daytime power generation, both the photovoltaic panel 4 and the battery box 2 are at high temperatures. Simultaneously, the airbag 56 expands due to the high temperature, causing the movable plate 57 to move towards the light-transmitting film 6. As the movable plate 57 moves, the contact block 571 gradually contacts the two conductive blocks 544. This energizes the water pump in the cooling tank 11, drawing coolant into the heat exchange tubes 21 and 341, thus cooling the battery box 2 and photovoltaic panel 4 through water cooling. This prevents the battery box 2 and photovoltaic panel 4 from overheating, ensuring the power generation efficiency of the photovoltaic panel 4 and preventing the energy storage batteries in the battery box 2 from aging. The higher the temperature, the larger the airbag 56 expands, allowing the movable plate 57 to move a greater distance. This increases the contact area between contact block 571 and the two conductive blocks 544. Treating contact block 571 as a resistor, the larger the contact area, the smaller the resistance. This increases the voltage across the water pump, accelerating the pumping speed. Furthermore, it adjusts the cooling effect on the photovoltaic panel 4 and battery box 2 according to temperature changes, avoiding both inadequate and excessive cooling. In practical use, a thermometer is also installed inside the cooling tank 11. If the temperature of the coolant inside the cooling tank 11 is high, the processor controls the cooling component 112 to cool the coolant inside the cooling tank 11, ensuring effective cooling of the photovoltaic panel 4 and battery box 2. Simultaneously, the heat insulation cover 111 isolates external heat, preventing the internal coolant temperature of the cooling tank 11 from rising rapidly during the daytime high temperatures. When power generation stops at night, the photovoltaic panel 4 and battery box 2 may be in a low-temperature state. Simultaneously, the airbag 56 will also contract due to the low temperature, causing the movable plate 57 to move away from the light-transmitting film 6. During the movement of the movable plate 57, the contact block 571 will gradually come into contact with the two conductive blocks 545. This allows the water pump inside the heating tank 10 to be energized, drawing heating liquid into the heat exchange tubes 21 and 341. This high-temperature water heating method heats and insulates the battery box 2 and photovoltaic panel 4, preventing them from becoming too cold and thus avoiding a decrease in battery output performance, ensuring power supply stability. It also prevents the encapsulation material of the photovoltaic panel 4 from becoming brittle and cracking, ensuring the integrity of the overall structure and power generation efficiency of the photovoltaic panel 4. The lower the temperature, the smaller the airbag 56 contracts. The farther the movable plate 57 moves, the greater the contact area between the contact block 571 and the two conductive blocks 545. Considering the contact block 571 as a resistor, the larger the contact area, the smaller the resistance. This increases the voltage across the water pump, thereby accelerating the pumping speed. This, in turn, adjusts the heating effect on the photovoltaic panel 4 and the battery box 2 according to temperature changes, avoiding both poor heating and overheating. In practical use, a thermometer is also installed inside the heating tank 10. If the temperature of the heating liquid in the heating tank 10 is low, the processor will control the heating element 101 to heat the heating liquid in the heating tank 10, ensuring the heating effect on the photovoltaic panel 4 and the battery box 2. During the day, the heating tank 10 is outside, ensuring the heating liquid remains at a high temperature, thus preparing for nighttime heating. When the movable plate 57 moves, it can adjust the tension of the light-transmitting film 6. Because the light-transmitting film 6 may soften at high temperatures, it will be in a loose state, which will reduce the protective performance of the light-transmitting film 6 on the photovoltaic panel 4. At this time, the movable plate 57 moves down to tighten the light-transmitting film 6, thereby ensuring the protective performance of the light-transmitting film 6. At low temperatures, the light-transmitting film 6 may shrink, which may be in a tight state. If this continues for a long time, the light-transmitting film 6 may break and be damaged. At this time, the movable plate 57 moves up to buffer the tight state of the light-transmitting film 6, thereby preventing the light-transmitting film 6 from being damaged due to low temperature.

[0034] like Figure 4 and Figure 6 As shown, the photovoltaic panel 4 has an electric plate 8 and a conductive strip 9 installed sequentially from the inside to the outside in the recessed area on its surface, and the light-transmitting film 6 is located outside the conductive strip 9.

[0035] A drive unit 521 is installed on the side plate 51. The drive unit 521 is connected to the take-up roller 52. A scraper 55 is provided between the two sets of side plates 51. The scraper 55 abuts against the surface of the light-transmitting film 6. A processor is installed in the battery box 2. The processor is connected to the drive unit 521. The power board 8 is connected to the processor.

[0036] In one embodiment, the power board 8 is always energized, and an ammeter is installed on the circuit.

[0037] In practical application, when a large amount of dust accumulates on the light-transmitting film 6, the film 6 will concave towards the photovoltaic panel 4, thus squeezing the conductive strip 9. The conductive strip 9 will then come into contact with the energized plate 8. If the amount of dust is small, the contact area between the conductive strip 9 and the energized plate 8 is small; if the amount of dust is large, the contact area is large. Considering the conductive strip 9 as a resistor, if it contacts the energized plate 8, the ammeter reading will decrease. Conversely, if the amount of dust is small, the contact area is smaller, resulting in a higher resistance. The smaller the current value, the larger the contact area and the lower the resistance, the larger the current value. Before use, a current value is set. When the current value reaches this value, the processor controls the drive unit 521 to start, so that the winding roller 52 winds up the light-transmitting film 6, so that the clean light-transmitting film 6 covers the surface of the photovoltaic panel 4, ensuring the power generation efficiency of the photovoltaic panel 4. During the movement of the light-transmitting film 6, the scraper 55 will scrape off the dust on the light-transmitting film 6, so that the cleaned light-transmitting film 6 can be used continuously in the future.

[0038] Furthermore, the two sets of take-up rollers 52 respectively take up the light-transmitting film 6 and the protective film 7, and the light-transmitting film 6 and the protective film 7 are spliced ​​together.

[0039] In practical applications, even if there is no dust on the light-transmitting film 6 during windy weather, the light-transmitting film 6 will still compress the conductive strip 9. At this time, the light-transmitting film 6 will be greatly dented under the action of strong wind, resulting in a large degree of bending of the conductive strip 9 and a large contact area between the conductive strip 9 and the conductive plate 8. Before use, another current value is set. When the current value reaches this value, the processor controls the drive unit 521 to start, so that the light-transmitting film 6 is completely rolled up and the protective film 7 covers the photovoltaic panel 4. In this way, the protective film 7 can protect the photovoltaic panel 4 and prevent foreign objects from hitting or scratching the photovoltaic panel 4 during windy weather, thereby improving the protection of the photovoltaic panel 4.

[0040] Working principle: During use, the angle of the photovoltaic panel 4 on the mounting frame 34 is adjusted by the rotating component 31 and the telescopic component 33 to track sunlight. During daytime power generation, the temperature of the photovoltaic panel 4 and the battery box 2 rises, and the air bladder 56 inside the sealed box 54 expands due to heat, pushing the movable plate 57 towards the light-transmitting film 6. The contact block 571 on the movable plate 57 then contacts the conductive block 544 in the mounting cavity 543, activating the circuit of the water pump in the cooling tank 11. Coolant is pumped into the heat exchange tube 21 outside the battery box 2 and the heat exchange tube 341 inside the mounting frame 34, circulating and cooling the battery box 2 and the photovoltaic panel 4. At the same time, the expansion of the air bladder 56 causes the movable plate 57 to move downward, tightening the light-transmitting film 6, which may soften due to high temperature.

[0041] When the surface of the light-transmitting film 6 accumulates dust to a certain extent, the weight of the dust will cause the film to sag downwards, pressing the conductive strip 9 into contact with the conductive plate 8. The contact area increases with the amount of dust, resulting in an increase in the current of the monitoring circuit. When the current value reaches the processor's preset threshold, the processor controls the drive unit 521 to start, driving the take-up roller 52 to wind up a section of the light-transmitting film 6, so that the clean film section covers the photovoltaic panel 4, and the scraper 55 removes the dust from the wound film section. If a strong wind causes the light-transmitting film 6 to sag violently, the contact area between the conductive strip 9 and the conductive plate 8 will abnormally increase, and the current will reach a higher preset threshold. In this case, the processor will control the take-up roller 52 to completely wind up the light-transmitting film 6, and at the same time, the high-strength protective film 7 on another take-up roller 52 will cover the outside of the photovoltaic panel 4 for enhanced protection.

[0042] At night or in low-temperature environments, the photovoltaic panel 4 and battery box 2 cool down, causing the airbag 56 to contract and the movable plate 57 to retract. The contact block 571 then contacts the conductive block 545, activating the water pump circuit inside the heating tank 10. Heating liquid is pumped into the heat exchange pipeline to heat and maintain the temperature of the battery box 2 and photovoltaic panel 4. Simultaneously, the retraction of the movable plate 57 releases the tension on the light-transmitting film 6, buffering the internal stress caused by low-temperature contraction and preventing cracking. The cooling element 112 and heating element 101 activate when the liquid temperature in their respective tanks exceeds a set range to maintain a suitable temperature for the heat exchange medium. The heat insulation cover 111 reduces heat exchange between the cooling tank 11 and the environment.

Claims

1. A portable photovoltaic energy storage integrated device, comprising a mobile platform (1) and a battery box (2), characterized in that, The device further includes: A bracket (3) is mounted on top of the battery box (2); A photovoltaic panel (4) is mounted on a bracket (3); The winding mechanism (5) is provided in two sets, and the two sets of winding mechanisms (5) are respectively installed on both sides of the bracket (3); A light-transmitting film (6) is wound on the two sets of winding mechanisms (5). The light-transmitting film (6) is located on the outside of the photovoltaic panel (4) and protects the photovoltaic panel (4). Heating tank (10) and cooling tank (11) are respectively installed on the moving platform (1). Heat exchange fluid is stored in both the heating tank (10) and the cooling tank (11). The heat exchange components on the battery box (2) and the bracket (3) are connected to the heating tank (10) and the cooling tank (11).

2. The easily portable photovoltaic energy storage integrated device according to claim 1, characterized in that, The bracket (3) includes a rotating part (31), a telescopic part (33) and a mounting frame (34). The rotating part (31) is mounted on the top of the battery box (2). The output end of the rotating part (31) is provided with a base plate (32). One end of the telescopic part (33) is hinged to the base plate (32). The base plate (32) is provided with several support plates (321). The mounting frame (34) is hinged to several support plates (321). The other end of the telescopic part (33) is hinged to the mounting frame (34). The photovoltaic panel (4) is fixedly mounted on the mounting frame (34).

3. The easily portable photovoltaic energy storage integrated device according to claim 2, characterized in that, The winding mechanism (5) includes a side plate (51), a winding roller (52) and a tension roller (53). The side plate (51) is provided in two sets. The two sets of side plates (51) are fixed on both sides of the mounting frame (34). The winding roller (52) and the two sets of tension rollers (53) are rotatably installed between the two sets of side plates (51). The light-transmitting film (6) passes around the two sets of tension rollers (53) and is wound on the winding roller (52).

4. The easily portable photovoltaic energy storage integrated device according to claim 3, characterized in that, A sealing box (54) is also installed between the two sets of side plates (51). The sealing box (54) has a movable cavity (542) and an installation cavity (543) respectively. The installation cavity (543) is located between the movable cavity (542) and the light-transmitting membrane (6). A light-transmitting plate (541) is provided on the outside of the movable cavity (542). An airbag (56) is provided inside the movable cavity (542). One side of the airbag (56) is fixed to the inside of the light-transmitting plate (541), and the other side of the airbag (56) has a movable plate (57). The movable plate (57) penetrates the sealing box (542). 54) and abuts against the light-transmitting film (6), the movable plate (57) is located between the two sets of tension rollers (53), and two sets of conductive blocks (545) and two sets of conductive blocks (544) are symmetrically installed in the mounting cavity (543) respectively. The movable plate (57) is provided with contact blocks (571). Water pumps are installed in both the heating tank (10) and the cooling tank (11). The two sets of conductive blocks (544) are connected to the circuit of the water pump in the cooling tank (11), and the two sets of conductive blocks (545) are connected to the circuit of the water pump in the heating tank (10).

5. The easily portable photovoltaic energy storage integrated device according to claim 4, characterized in that, Two sets of heat exchange tubes (21) are installed on the outside of the battery box (2), and two sets of heat exchange tubes (341) are installed inside the mounting bracket (34). The two sets of heat exchange tubes (21) and heat exchange tubes (341) are respectively connected to the water pumps in the heating tank (10) and cooling tank (11). The heating tank (10) is equipped with a heating element (101), and the cooling tank (11) is equipped with a cooling element (112). The cooling tank (11) is also covered with a heat insulation cover (111).

6. The easily portable photovoltaic energy storage integrated device according to claim 3, characterized in that, The photovoltaic panel (4) has a recessed area on its surface with an electric plate (8) and a conductive strip (9) installed sequentially from the inside to the outside, and the light-transmitting film (6) is located outside the conductive strip (9).

7. The easily portable photovoltaic energy storage integrated device according to claim 6, characterized in that, A drive unit (521) is installed on the side plate (51), the drive unit (521) is connected to the take-up roller (52), a scraper (55) is provided between the two sets of side plates (51), the scraper (55) abuts against the surface of the light-transmitting film (6), a processor is installed in the battery box (2), the processor is connected to the drive unit (521), and the power board (8) is connected to the processor.

8. The easily portable photovoltaic energy storage integrated device according to claim 3, characterized in that, The two sets of winding rollers (52) respectively wind up the light-transmitting film (6) and the protective film (7), and the light-transmitting film (6) and the protective film (7) are spliced ​​together.

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