Photovoltaic energy storage device

Abstract

The utility model relates to the field of photovoltaic technology, in particular to a photovoltaic energy storage device, which comprises a shell; the first partition plate and the second partition plate are provided with vent holes and divide the shell into an upper cavity, a middle cavity and a lower cavity from top to bottom; the storage battery is arranged in the middle cavity and is connected with the photovoltaic panel so as to charge the storage battery; the cooling mechanism comprises two cooling cavities and two water cooling coil pipes, the two cooling cavities are attached to the two first side walls respectively, and the two water cooling coil pipes are arranged in the two cooling cavities respectively so as to cool the interior of the shell; the dehumidification mechanism is arranged in the lower cavity, is placed on the bottom wall and is used for dehumidifying the interior of the shell; and the vibration reduction mechanism is connected to the bottom wall. According to the invention, heat dissipation, cooling and dehumidification treatment of the interior of the shell is realized, vibration prevention and vibration reduction of the shell are realized, and the influence of environment temperature and humidity and vibration on each part in the shell is avoided.

Description

Technical Field

[0001] This disclosure relates to the field of photovoltaic technology, and in particular to a photovoltaic energy storage device. Background Technology

[0002] Most existing photovoltaic energy storage systems are stored in the open air, absorbing solar energy and converting it into electrical energy. Therefore, they are easily affected by the external environment. When the outside temperature is too high, it can easily damage the internal components of the photovoltaic energy storage system. Therefore, it is necessary to install heat dissipation components on the photovoltaic energy storage system to dissipate heat and cool down.

[0003] The prior art proposes a photovoltaic energy storage device (CN 220605878 U), which includes a photovoltaic energy storage box and an energy storage component. The energy storage component is installed inside the photovoltaic energy storage box. This utility model installs a first photovoltaic panel and a second photovoltaic panel on the photovoltaic energy storage box. The first photovoltaic panel and the second photovoltaic panel are respectively installed on the top and side of the photovoltaic energy storage box. This not only provides additional clean energy for the operation of the photovoltaic energy storage device and reduces the operation and maintenance costs, but also reduces direct sunlight on the photovoltaic energy storage box through the shading of the photovoltaic panels, reducing the heat dissipation burden of the device and making the device have better heat dissipation effect.

[0004] While the aforementioned existing technologies have achieved heat dissipation and cooling for photovoltaic energy storage devices, these systems are affected not only by ambient temperature but also by ambient humidity during operation, and are also subject to vibration during transportation and handling. Therefore, how to simultaneously achieve heat dissipation, dehumidification, and vibration reduction in photovoltaic energy storage devices is a problem that those skilled in the art need to consider. Utility Model Content

[0005] One of the technical problems that this disclosure aims to solve is how the photovoltaic energy storage device mentioned above can simultaneously achieve heat dissipation and cooling, dehumidification, and vibration reduction.

[0006] To address the aforementioned technical problems, this disclosure provides a photovoltaic energy storage device, comprising: a housing, the housing including two opposing first sidewalls, two opposing second sidewalls, a top wall, and a bottom wall, the two first sidewalls and two second sidewalls forming the sidewalls of the housing, the top wall connected to the top of the sidewalls, and the bottom wall connected to the bottom of the sidewalls, the top wall, bottom wall, and sidewalls forming the housing; a photovoltaic panel disposed on the top wall; and a partition plate having multiple ventilation holes, the partition plate including a first partition plate and a second partition plate, the first partition plate and the second partition plate being disposed within the housing and arranged vertically. The casing is divided into an upper cavity, a middle cavity, and a lower cavity from top to bottom; a battery is located in the middle cavity and placed on the second partition, and connected to a photovoltaic panel to charge the battery; a cooling mechanism includes two cooling chambers and two water-cooling coils, with the two cooling chambers respectively attached to the two first side walls, and the two water-cooling coils respectively located in the two cooling chambers to cool the inside of the casing; a dehumidification mechanism is located in the lower cavity and placed on the bottom wall to dehumidify the inside of the casing; and a vibration damping mechanism is connected to the bottom wall.

[0007] In some embodiments, the photovoltaic energy storage device further includes an inverter disposed in the upper cavity and placed on the first partition, and connected to the photovoltaic panel to convert the direct current generated by the photovoltaic panel into alternating current.

[0008] In some embodiments, the cooling mechanism further includes a water storage tank disposed on the second side wall, the drain outlet of the water storage tank being connected to the inlet of the water-cooling coil, and the outlet of the water-cooling coil being connected to the return outlet of the water storage tank.

[0009] In some embodiments, the drain outlet of the water storage tank is connected to the inlet of the water-cooling coil via a water pump.

[0010] In some embodiments, the dehumidification mechanism includes a dehumidifier and a water storage tank. The water storage tank is disposed on the bottom wall, and the dehumidification chamber of the dehumidifier is disposed on the water storage tank. An air inlet and an air outlet are respectively opened on two opposite sides of the dehumidifier. The compressor, condenser, evaporator and exhaust fan of the dehumidifier are arranged sequentially in the dehumidification chamber. The compressor is adjacent to the air inlet, and the exhaust fan is adjacent to the air outlet. The compressor, condenser and evaporator are connected end to end in sequence to form a refrigerant circulation loop of the dehumidifier. A condensate drain outlet is opened at the bottom of the dehumidification chamber and is connected to the water storage tank.

[0011] In some embodiments, the photovoltaic energy storage device further includes a walking mechanism, which is connected to the bottom wall via a vibration damping mechanism.

[0012] In some embodiments, the walking mechanism includes casters.

[0013] In some embodiments, the vibration damping mechanism includes a buffer cavity with an upper opening and a spring. The buffer cavity is disposed on a caster wheel, and the spring is disposed inside the buffer cavity with its bottom end connected to the bottom wall of the buffer cavity and its top end connected to the bottom wall.

[0014] In some embodiments, the photovoltaic energy storage device further includes a temperature and humidity sensor disposed in the upper cavity for monitoring the temperature and humidity inside the housing.

[0015] In some embodiments, the top wall includes two inclined plates, the tops of which are connected, the bottoms of which are respectively connected to the tops of two first side walls, and the two opposite sides of the inclined plates are respectively connected to the tops of two second side walls. The photovoltaic panels include two sets, and the two sets of photovoltaic panels are respectively laid on the two inclined plates.

[0016] According to the above technical solution, this disclosure provides a photovoltaic energy storage device. A cooling mechanism achieves heat dissipation and cooling of the internal casing; a dehumidification mechanism achieves dehumidification of the internal casing; and a vibration damping mechanism achieves vibration prevention and damping of the casing, thus avoiding the impact of ambient temperature, humidity, and vibration on the photovoltaic energy storage device. An inverter can directly convert the DC power generated by the photovoltaic panels into AC power for use by electrical equipment. A water tank can collect and reuse the condensate generated during the dehumidification process. Temperature and humidity sensors can monitor the internal temperature and humidity of the casing in real time. 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 a photovoltaic energy storage device according to an embodiment of the present disclosure;

[0019] Figure 2 This is a schematic diagram of a cooling mechanism according to an embodiment of the present disclosure;

[0020] Figure 3 This is a schematic diagram of a water storage tank according to an embodiment of the present disclosure;

[0021] Figure 4 This is a schematic diagram of a dehumidification mechanism according to an embodiment of the present disclosure;

[0022] Figure 5 yes Figure 1 A magnified view of node A.

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

[0024] 1. Housing; 2. Controller; 3. First partition; 4. Cooling chamber; 5. Dehumidifier; 8. Casters; 9. Water tank; 10. Air outlet; 11. Second partition; 12. Battery; 13. Inverter; 14. Photovoltaic panel; 15. Temperature and humidity sensor; 16. Air inlet; 17. Condensate drain outlet; 18. Exhaust fan; 19. Evaporator; 20. Condenser; 21. Compressor; 22. Water-cooled coil; 23. Water tank; 25. Water pump; 26. Buffer chamber; 27. Spring. 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] As mentioned in the background section above, photovoltaic energy storage systems are affected not only by ambient temperature but also by ambient humidity during operation. Furthermore, photovoltaic energy storage devices are subject to vibration during transportation and handling. Based on this, the inventors of this application provide a photovoltaic energy storage device in one or more embodiments. This device utilizes a cooling mechanism to dissipate heat and lower the temperature inside the casing, a dehumidification mechanism to dehumidify the interior of the casing, and a vibration damping mechanism to prevent vibration and reduce the impact of ambient temperature, humidity, and vibration on the photovoltaic energy storage device. This is believed to solve one or more problems of the prior art.

[0033] To address the aforementioned technical problems, this utility model provides a photovoltaic energy storage device, such as... Figure 1 and Figure 2As shown, it includes: a housing 1, which includes two opposing first sidewalls, two opposing second sidewalls, a top wall, and a bottom wall. The two first sidewalls and two second sidewalls enclose and form the sidewalls of the housing 1. The top wall is connected to the top of the sidewalls, and the bottom wall is connected to the bottom of the sidewalls. The top wall, bottom wall, and sidewalls enclose and form the housing 1; a photovoltaic panel 14, which is disposed on the top wall; and a partition, which has multiple ventilation holes. The partition includes a first partition 3 and a second partition 11, which are disposed inside the housing 1 and arranged vertically to divide the housing 1 into an upper part from top to bottom. The housing 1 comprises a cavity, a middle cavity, and a lower cavity; a battery 12, which is disposed in the middle cavity and placed on the second partition 11, and connected to a photovoltaic panel 14 for charging the battery 12; a cooling mechanism, which includes two cooling chambers 4 and two water-cooling coils 22, the two cooling chambers 4 being respectively attached to two first side walls, and the two water-cooling coils 22 being respectively disposed in the two cooling chambers 4 for cooling the interior of the housing 1; a dehumidification mechanism, which is disposed in the lower cavity and placed on the bottom wall for dehumidifying the interior of the housing 1; and a vibration damping mechanism, which is connected to the bottom wall.

[0034] Specifically, when the ambient temperature exceeds a certain limit, the cooling mechanism is activated. Cooling water flows through the water-cooling coil 22 and exchanges heat with the shell 1, thus cooling the interior of the shell 1 and preventing the impact of excessively high ambient temperatures on the components inside the shell 1. When the ambient humidity exceeds a certain limit, the dehumidification mechanism is activated to dehumidify the interior of the shell 1. Additionally, ventilation holes are provided on the partition, allowing airflow to form within the upper, middle, and lower cavities during dehumidification, which then flows through the dehumidification mechanism for dehumidification, thus achieving dehumidification of the interior of the shell 1. Vibration damping mechanisms are installed on the bottom wall to prevent vibrations from affecting the components inside the shell 1 during handling and movement. Furthermore, the first partition 3 and the second partition 11 divide the shell 1 into an upper, middle, and lower cavity, facilitating the placement of the various components of the photovoltaic energy storage device within the shell 1.

[0035] Compared with the prior art, the photovoltaic energy storage device of this application achieves heat dissipation and cooling treatment inside the shell 1 through a cooling mechanism, dehumidification treatment inside the shell 1 through a dehumidification mechanism, and vibration damping and vibration reduction of the shell 1 through a vibration damping mechanism, thereby avoiding the impact of ambient temperature, humidity and vibration on the photovoltaic energy storage device.

[0036] In some embodiments, such as Figure 1As shown, the photovoltaic energy storage device also includes an inverter 13, which is disposed in the upper cavity and placed on the first partition 3, and connected to the photovoltaic panel 14 to convert the direct current generated by the photovoltaic panel 14 into alternating current. The inverter 13 can directly convert the direct current generated by the photovoltaic panel 14 into alternating current to supply power to electrical equipment or connect it to the power grid. This allows the photovoltaic energy storage device to be used directly as a power source.

[0037] In some embodiments, such as Figure 3 As shown, the cooling mechanism also includes a water storage tank 23, which is mounted on the second side wall. The drain outlet of the water storage tank 23 is connected to the inlet of the water-cooling coil 22, and the outlet of the water-cooling coil 22 is connected to the return outlet of the water storage tank 23. Specifically, a support plate is welded to the second side wall, and the water storage tank 23 can be fixed to the support plate with bolts. The water storage tank 23 provides a cooling water source for the water-cooling coil 22, and the connection between the water storage tank 23 and the water-cooling coil 22 forms a cooling water circulation loop, thereby ensuring the heat dissipation and cooling effect on the inside of the casing 1.

[0038] In some embodiments, such as Figure 3 As shown, the drain outlet of the water storage tank 23 is connected to the inlet of the water-cooling coil 22 via a water pump 25. The water pump 25 pumps cooling water from the drain outlet of the water storage tank 23 into the inlet of the water-cooling coil 22, thus ensuring the flow rate and velocity of the cooling water within the water-cooling coil 22. Furthermore, a cooler can be installed inside the water storage tank 23 to cool the cooling water, further ensuring the cooling effect of the cooling mechanism.

[0039] In some embodiments, such as Figure 1 and Figure 4 As shown, the dehumidification mechanism includes a dehumidifier 5 and a water tank 9. The water tank 9 is mounted on the bottom wall, and the dehumidification chamber of the dehumidifier 5 is located on the water tank 9. An air inlet 16 and an air outlet 10 are respectively located on two opposite sides of the dehumidifier 5. The compressor 21, condenser 20, evaporator 19, and exhaust fan 18 of the dehumidifier 5 are arranged sequentially within the dehumidification chamber. The compressor 21 is adjacent to the air inlet 16, and the exhaust fan 18 is adjacent to the air outlet 10. The compressor 21, condenser 20, and evaporator 19 are connected end-to-end to form a refrigerant circulation loop for the dehumidifier 5. A condensate drain outlet 17 is located at the bottom of the dehumidification chamber and is connected to the water tank 9. Dehumidification of the interior of the casing 1 is achieved through the dehumidification chamber, compressor 21, condenser 20, evaporator 19, and exhaust fan 18. The dehumidifier 5 is existing technology and will not be described in detail here. In addition, the condensate generated during the dehumidification process can be collected through the water storage tank 9. Furthermore, the water storage tank 9 can also be connected to the water storage tank 23 to discharge the condensate into the water storage tank 23, which plays the role of replenishing the water storage tank 23 and realizing the reuse of condensate.

[0040] In some embodiments, the photovoltaic energy storage device further includes a walking mechanism, which is connected to the bottom wall via a vibration damping mechanism. The walking mechanism facilitates the movement of the photovoltaic energy storage device.

[0041] In some embodiments, such as Figure 1 As shown, the traveling mechanism includes casters 8. The casters 8 enable the traveling function of the traveling mechanism. Specifically, there are multiple casters 8, which are connected to the bottom wall through multiple vibration damping mechanisms. Furthermore, a braking mechanism, such as brake pads, can be installed on the casters 8 to fix them to the installation position.

[0042] In some embodiments, such as Figure 5 As shown, the vibration damping mechanism includes a buffer cavity 26 with an upper opening and a spring 27. The buffer cavity 26 is mounted on the caster wheel 8, and the spring 27 is mounted inside the buffer cavity 26, with its bottom end connected to the bottom wall of the buffer cavity 26 and its top end connected to the bottom wall. The spring 27 achieves the vibration damping effect of the vibration damping mechanism, and the buffer cavity 26 ensures the connection strength between the spring 27 and the caster wheel 8, thereby ensuring structural safety.

[0043] In some embodiments, such as Figure 1 As shown, the photovoltaic energy storage device also includes a temperature and humidity sensor 15, which is installed in the upper cavity to monitor the temperature and humidity inside the housing 1. The temperature and humidity sensor 15 can monitor the temperature and humidity inside the housing 1 in real time. Specifically, a controller 2 can be installed in the upper cavity. The temperature and humidity sensor 15 transmits the monitored temperature and humidity values ​​to the controller 2. When the temperature exceeds a certain limit, the controller 2 instructs the cooling mechanism to start, performing heat dissipation and cooling treatment on the inside of the housing 1; when the humidity exceeds a certain limit, the controller 2 instructs the dehumidification mechanism to start, performing dehumidification treatment on the inside of the housing 1.

[0044] In some embodiments, such as Figure 1 As shown, the top wall includes two inclined plates, the tops of which are connected, and the bottoms of which are respectively connected to the tops of two first side walls. The two opposite sides of the inclined plates are respectively connected to the tops of two second side walls. The photovoltaic panels 14 include two sets, and the two sets of photovoltaic panels 14 are respectively laid on the two inclined plates. The inclined plates ensure the efficiency of solar energy absorption by the photovoltaic panels 14 laid on them.

[0045] In summary, compared with the prior art, this disclosure provides a photovoltaic energy storage device that achieves heat dissipation and cooling of the interior of the housing 1 through a cooling mechanism, dehumidification of the interior of the housing 1 through a dehumidification mechanism, and vibration damping of the housing 1 through a vibration damping mechanism, thus avoiding the impact of ambient temperature, humidity, and vibration on the photovoltaic energy storage device; the inverter 13 can directly convert the DC power generated by the photovoltaic panel 14 into AC power to supply the electrical equipment; the water tank 9 can collect the condensate generated during the dehumidification process for reuse; and the temperature and humidity sensor 15 can monitor the temperature and humidity inside the housing 1 in real time.

[0046] 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.

[0047] 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 energy storage device, characterized in that, include: The housing (1) includes two opposing first sidewalls, two opposing second sidewalls, a top wall and a bottom wall. The two first sidewalls and the two second sidewalls enclose the sidewalls of the housing (1). The top wall is connected to the top of the sidewalls and the bottom wall is connected to the bottom of the sidewalls. The top wall, the bottom wall and the sidewalls enclose the housing (1). A photovoltaic panel (14) is disposed on the top wall; The partition has multiple ventilation holes. The partition includes a first partition (3) and a second partition (11). The first partition (3) and the second partition (11) are disposed inside the housing (1) and arranged vertically to divide the housing (1) into an upper cavity, a middle cavity and a lower cavity from top to bottom. A storage battery (12) is disposed in the central cavity and placed on the second partition (11), and connected to the photovoltaic panel (14) to charge the storage battery (12); The cooling mechanism includes two cooling chambers (4) and two water-cooling coils (22). The two cooling chambers (4) are respectively attached to the two first side walls, and the two water-cooling coils (22) are respectively arranged in the two cooling chambers (4) to cool down the inside of the housing (1). A dehumidification mechanism is disposed in the lower cavity and placed on the bottom wall for dehumidifying the interior of the housing (1); and A vibration damping mechanism is attached to the bottom wall.

2. The photovoltaic energy storage device according to claim 1, characterized in that, The photovoltaic energy storage device also includes an inverter (13), which is disposed in the upper cavity and placed on the first partition (3), and connected to the photovoltaic panel (14) to convert the direct current generated by the photovoltaic panel (14) into alternating current.

3. The photovoltaic energy storage device according to claim 1, characterized in that, The cooling mechanism also includes a water storage tank (23), which is installed on the second side wall. The drain outlet of the water storage tank (23) is connected to the inlet of the water cooling coil (22), and the outlet of the water cooling coil (22) is connected to the return outlet of the water storage tank (23).

4. The photovoltaic energy storage device according to claim 3, characterized in that, The drain outlet of the water storage tank (23) is connected to the inlet of the water cooling coil (22) via a water pump (25).

5. The photovoltaic energy storage device according to claim 1, characterized in that, The dehumidification mechanism includes a dehumidifier (5) and a water tank (9). The water tank (9) is located on the bottom wall. The dehumidification chamber of the dehumidifier (5) is located on the water tank (9), and an air inlet (16) and an air outlet (10) are respectively opened on its two opposite sides. The compressor (21), condenser (20), evaporator (19) and exhaust fan (18) of the dehumidifier (5) are arranged in sequence in the dehumidification chamber. The compressor (21) is adjacent to the air inlet (16), and the exhaust fan (18) is adjacent to the air outlet (10). The compressor (21), the condenser (20) and the evaporator (19) are connected end to end to form a refrigerant circulation loop of the dehumidifier (5). A condensate drain outlet (17) is opened at the bottom of the dehumidification chamber and is connected to the water tank (9).

6. The photovoltaic energy storage device according to claim 1, characterized in that, The photovoltaic energy storage device also includes a walking mechanism, which is connected to the bottom wall via the vibration damping mechanism.

7. The photovoltaic energy storage device according to claim 6, characterized in that, The walking mechanism includes casters (8).

8. The photovoltaic energy storage device according to claim 7, characterized in that, The vibration damping mechanism includes a buffer cavity (26) with an upper opening and a spring (27). The buffer cavity (26) is disposed on the caster wheel (8), and the spring (27) is disposed inside the buffer cavity (26), with its bottom end connected to the bottom wall of the buffer cavity (26) and its top end connected to the bottom wall.

9. The photovoltaic energy storage device according to claim 1, characterized in that, The photovoltaic energy storage device also includes a temperature and humidity sensor (15), which is installed in the upper cavity to monitor the temperature and humidity inside the housing (1).

10. The photovoltaic energy storage device according to claim 1, characterized in that, The top wall includes two inclined plates, the tops of the two inclined plates are connected, the bottoms of the two inclined plates are respectively connected to the tops of the two first side walls, and the two opposite sides of the inclined plates are respectively connected to the tops of the two second side walls. The photovoltaic panel (14) includes two sets, and the two sets of photovoltaic panels (14) are respectively laid on the two inclined plates.

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