Photovoltaic energy storage equipment with cooling structure

Abstract

The utility model relates to the technical field of photovoltaic energy storage, in particular to photovoltaic energy storage equipment with a cooling structure. Comprising a fixing frame, a photovoltaic panel used for energy conversion is arranged at the top end of the fixing frame, a plurality of mounting frames are arranged in a shell, battery modules used for energy storage are arranged in the mounting frames, and phase change materials used for cooling are arranged in the top end of the fixing frame and on the two sides of the mounting frames. Circulating pipes used for circulating cooling liquid are arranged in the phase change materials, a draw-off pump I used for pumping water is installed on one side of the shell, and a water outlet of the draw-off pump I communicates with connecting pipes matched with the circulating pipes in number. According to the utility model, the phase-change material is arranged and is matched with the draw-off pump I, the circulating pipe and the draw-off pump II to form a water-cooled circulating system, the phase-change material is utilized to absorb redundant heat in the phase-change process, and cooling liquid flows through the phase-change material around the photovoltaic panel and the battery module, so that the redundant heat is taken away; and a more efficient and thorough cooling effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic energy storage, and particularly, to a photovoltaic energy storage device with a cooling structure. Background Art

[0002] Photovoltaic energy storage devices are an important part of modern renewable energy systems. Such devices are mainly used to store electrical energy that has been converted by photovoltaic modules but cannot be used immediately, so as to supply power to the power grid or load when needed. The most common photovoltaic energy storage device is a battery pack, and among them, lithium batteries have become one of the most widely used types in the current market due to their high energy density, long cycle life, and relatively light weight.

[0003] During the operation of a photovoltaic energy storage device, heat is generated inside the battery. If this heat cannot be effectively dissipated, it will cause the battery temperature to rise, thereby affecting the battery's efficiency and lifespan. Therefore, the design of the cooling system is crucial for maintaining the normal operation of the energy storage device.

[0004] Existing photovoltaic energy storage devices usually come with an internal cooling system to address this issue. A common method is to use an air-cooling system. The air-cooling system forces air to flow through fans to carry away the heat generated by the battery. However, this method may have drawbacks in some cases. Especially when the device is installed in an environment with high heat, relying solely on the air-cooling system may not be able to effectively dissipate the heat inside the battery in a timely manner. In addition, the air-cooling system may also have problems such as high noise and complex maintenance.

[0005] In view of the above problems, there is an urgent need to propose a photovoltaic energy storage device with a cooling structure that can better meet the heat dissipation requirements in high-temperature environments, while also considering the compactness and noise requirements of the device to meet the growing demand in the photovoltaic energy storage market. Summary of the Utility Model

[0006] In order to overcome the above-mentioned shortcomings existing in the prior art, the utility model provides a photovoltaic energy storage device with a cooling structure, which can better meet the heat dissipation requirements in high-temperature environments, while also considering the compactness and noise requirements of the device to meet the growing demand in the photovoltaic energy storage market.

[0007] The technical solution is as follows: A photovoltaic energy storage device with a cooling structure, which includes a housing, an upper cover, a fixing frame, a photovoltaic panel, a phase change material, extraction pump I, a circulation pipe, extraction pump II, a mounting frame, and a battery module. The upper cover is provided on the top of the housing through bolts. A fixing frame is provided at the rear side of the housing. The top of the fixing frame is provided with a photovoltaic panel for energy conversion. A plurality of mounting frames are provided inside the housing. A battery module for energy storage is provided inside the mounting frame. Phase change materials for cooling are provided inside the top of the fixing frame and on both sides of the mounting frame. Circulation pipes for circulating the coolant are provided inside the phase change materials. An extraction pump I for pumping water is installed on one side of the housing. A connecting pipe adapted to the number of circulation pipes is connected to the water outlet of extraction pump I. Each connecting pipe is respectively connected to one end of the corresponding circulation pipe. An extraction pump II for draining water is installed on the housing below extraction pump I. The water intake of extraction pump II is also connected to a connecting pipe adapted to the number of circulation pipes and is connected to the other end of the corresponding circulation pipe, thereby forming a circulating liquid flow channel.

[0008] As a further preferred solution, it further includes a guide plate, a slide rod, and a moving plate. A group of guide plates are symmetrically provided on both sides of the mounting frame. Slide rods are respectively penetrated and slidably provided on the opposite sides of the same group of guide plates. A moving plate is provided between the slide rods on the same side, so that the two moving plates are respectively located on both sides of the mounting frame and are in contact with the corresponding phase change materials.

[0009] As a further preferred solution, it further includes a mounting seat, an I-shaped plate, a slide rail, and a clamping rod. Mounting seats are provided on both sides of the mounting frame. The I-shaped plate is penetrated and slidably provided on the mounting seat. The top of the I-shaped plate is connected to the upper cover. Slide rails are inclinedly provided on both lower sides of the I-shaped plate. Clamping rods are slidably provided inside the slide rails. The other ends of the clamping rods are connected to the adjacent slide rods on the same side.

[0010] As a further preferred solution, it further includes an elastic member. An elastic member is provided between the slide rod and the corresponding guide plate.

[0011] As a further preferred solution, it further includes a protective shell. A protective shell surrounding extraction pump I and extraction pump II is provided on the housing.

[0012] As a further preferred solution, it further includes a foot support. A foot support is provided at each of the four corners of the bottom of the housing.

[0013] The utility model has the following advantages: 1. By setting the phase change material and cooperating with the water-cooled circulation system formed by extraction pump I, the circulation pipe, and extraction pump II, the utility model utilizes the phase change material to absorb excess heat during the phase change process, and then the coolant flows through the phase change materials around the photovoltaic panel and the battery module, thereby taking away the excess heat, achieving a more efficient and thorough cooling effect, and thus ensuring the heat dissipation required by the device.

[0014] 2. Through the cooperation of the I-shaped plate and the moving plate, the present utility model pushes the moving plates on both sides away from the battery module during a coherent operation process, making the disassembly of the device more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model.

[0016] Figure 2 It is a three-dimensional structural sectional view of components such as the photovoltaic panel, phase change material, and circulation pipe of the present utility model.

[0017] Figure 3 It is a three-dimensional structural schematic diagram of components such as the extraction pump II, phase change material, and battery module of the present utility model.

[0018] Figure 4 It is a three-dimensional structural schematic diagram of components such as the mounting rack, circulation pipe, and phase change material of the present utility model.

[0019] Figure 5 It is a three-dimensional structural schematic diagram of components such as the guide plate, sliding rod, and moving plate of the present utility model.

[0020] Figure 6 It is a three-dimensional structural sectional view of components such as the upper cover, mounting seat, and I-shaped plate of the present utility model.

[0021] Names of the reference numerals in the figure: 1 - housing, 2 - upper cover, 3 - fixing frame, 4 - photovoltaic panel, 5 - phase change material, 6 - extraction pump I, 7 - circulation pipe, 8 - extraction pump II, 9 - mounting rack, 10 - battery module, 11 - guide plate, 12 - sliding rod, 13 - moving plate, 14 - mounting seat, 15 - I-shaped plate, 16 - slide rail, 17 - clamping rod, 18 - elastic member, 19 - protective shell, 20 - foot support. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following further illustrates the technical solution with specific embodiments. It should be noted that: The words indicating directions such as up, down, left, and right in this text are only for the positions of the shown structures in the corresponding drawings. The serial numbers assigned to the components in this text, for example: first, second, etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. And the connections and couplings mentioned in this application, unless otherwise specified, all include direct and indirect connections (couplings).

[0023] Embodiment 1: A photovoltaic energy storage device with a cooling structure, as Figures 1-4As shown in the figure, it includes a housing 1, an upper cover 2, a fixing frame 3, a photovoltaic panel 4, a phase change material 5, a pumping pump I 6, a circulation pipe 7, a pumping pump II 8, a mounting frame 9 and a battery module 10. The top of the housing 1 is provided with an upper cover 2 through bolts. The main frames of these two devices can protect the internal components from external factors. A fixing frame 3 is provided at the rear side of the housing 1, and a photovoltaic panel 4 for energy conversion is provided at the top of the fixing frame 3, which is the main device for power supply. And two mounting frames 9 are provided inside the housing 1. The mounting frame 9 is a multi-compartment frame body for the partitioned area placement of its internal components. A battery module 10 for energy storage is provided inside the mounting frame 9 to store the electric energy converted by the photovoltaic panel 4 and cooperate to form an energy storage operation. And phase change materials 5 for cooling are provided inside the top of the fixing frame 3 and on the front and back sides of the mounting frame 9. In this embodiment, the phase change material 5 is a solid-solid material, so that it can always remain solid during the phase change process and absorb or release energy through the change of crystal structure or molecular arrangement. A circulation pipe 7 for circulating the coolant is provided inside each phase change material 5. The circulation pipe 7 is designed as a surrounding serpentine channel, which can help the coolant to effectively exchange heat with the phase change material 5. A pumping pump I 6 for pumping water is fixedly installed on the left side of the housing 1. A connecting pipe adapted to the number of circulation pipes 7 is connected to the water outlet of the pumping pump I 6, and each connecting pipe is respectively connected to one end of the corresponding circulation pipe 7. A pumping pump II 8 for draining water is installed on the housing 1 below the pumping pump I 6. A connecting pipe adapted to the number of circulation pipes 7 is also connected to the water intake of the pumping pump II 8 and is connected to the other end of the corresponding circulation pipe 7, thereby forming a circulating coolant flow channel to achieve the effect of water-cooled circulation and cooperation with the phase change material 5 for cooling, making the operation of the equipment body more compact and achieving efficient and effective heat dissipation.

[0024] When using this equipment, to ensure its normal operation, it is necessary to cool it down to cope with the high temperature generated during the operation process. First, start the pumping pump I 6 to pump the coolant through the pumping pump I 6. Then the coolant is distributed and circulated into each circulation pipe 7 through the connecting pipe, so that the phase change material 5 is filled with the coolant. Since the phase change material 5 can absorb the heat generated by the equipment and then conduct the heat to the coolant flowing in the circulation pipe 7, the heat transfer is completed and the required heat dissipation operation is completed. In this cycle, the heat-absorbing coolant will circulate once and then flow out from the other end connecting pipe. The heat-absorbing coolant is discharged by the pumping of the pumping pump II 8, so as to achieve the effect of circulating cooling. Compared with the traditional air-cooled heat dissipation, the excess heat is absorbed through the phase change process of the phase change material 5, and the coolant is circulated to transport the coolant to the phase change material 5 around the photovoltaic panel 4 and the battery module 10, thereby taking away the excess heat and making the heat dissipation effect of the equipment more efficient and thorough.

[0025] Embodiment 2: On the basis of Embodiment 1, as Figure 5 andFigure 6 As shown in the figure, it further includes a guide plate 11, a slide bar 12 and a moving plate 13. A set of guide plates 11 are symmetrically arranged on the left and right sides of the mounting bracket 9. Slide bars 12 are respectively arranged through and slidably on the opposite sides of the same group of guide plates 11. A moving plate 13 is arranged between the two slide bars 12 on the same left and right side, so that the two moving plates 13 are respectively located on the front and rear sides of the mounting bracket 9 and are connected to the corresponding phase change material 5, which can protect the phase change material 5 and the battery module 10 inside, and is convenient for subsequent maintenance and disassembly operations.

[0026] As Figure 6 As shown in the figure, it further includes a mounting seat 14, an I-shaped plate 15, a slide rail 16 and a clamping rod 17. Mounting seats 14 are arranged on both sides of the mounting bracket 9. The I-shaped plate 15 is arranged through and slidably on the mounting seats 14. The top end of the I-shaped plate 15 is connected to the upper cover 2. Slide rails 16 are obliquely arranged on the front and rear sides of the lower end of the I-shaped plate 15. Clamping rods 17 are slidably arranged in the slide rails 16. The other end of the clamping rod 17 is connected to the adjacent slide bar 12 on the same side. The slide rails 16 are outwardly expanding and inclined away from each other, which can pull the two clamping rods 17 away from or close to each other, so as to realize the unfolding or closing operation of the moving plate 13.

[0027] As Figure 6 As shown in the figure, it further includes an elastic member 18. An elastic member 18 is arranged between the slide bar 12 and the corresponding guide plate 11. In this embodiment, the elastic member 18 is a spring, which provides an elastic restoring force for the operation of the slide bar 12.

[0028] When the equipment needs to be disassembled, assembled or maintained, first, the staff loosens the bolts, so that the upper cover 2 is released from the restriction, and then pulls it upward, which drives the I-shaped plate 15 connected thereto to slide upward, pulls the connected slide rails 16, and then pushes the clamping rods 17 to slide on the corresponding slide rails 16. Affected by the inclined track of the slide rails 16, the clamping rods 17 move away from each other, and drive the two connected slide bars 12 to operate synchronously. The elastic member 18 deforms accordingly, and then the slide bars 12 drive the corresponding moving plates 13 to move away from each other, so that the two sides of the battery module 10 are released from the restriction of the moving plates 13, and the battery module 10 and the mounting bracket 9 are exposed. Subsequently, the battery module 10 to be maintained can be taken out through the vacated space.

[0029] As Figure 1 As shown in the figure, it further includes a protective shell 19. A protective shell 19 is arranged on the outer shell 1 around the extraction pump I 6 and the extraction pump II 8, which can shield and protect the two.

[0030] As Figure 1 As shown in the figure, it further includes a foot support 20. A foot support 20 is arranged at each of the four corners of the bottom of the outer shell 1 for supporting and bearing the whole equipment.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes may be made therein without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic energy storage device with a cooling structure, characterized in that: It includes a housing (1), an upper cover (2), a fixing frame (3), a photovoltaic panel (4), a phase change material (5), a pumping pump I (6), a circulation pipe (7), a pumping pump II (8), a mounting frame (9) and a battery module (10). The upper cover (2) is provided on the top of the housing (1) by bolts. The fixing frame (3) is provided at the rear side of the housing (1). The top end of the fixing frame (3) is provided with a photovoltaic panel (4) for energy conversion. A plurality of mounting frames (9) are provided inside the housing (1). The mounting frame (9) is provided with a battery module (10) for energy storage. And phase change materials (5) for cooling are provided inside the top end of the fixing frame (3) and on both sides of the mounting frame (9). A circulation pipe (7) for circulating the coolant is provided inside the phase change material (5). A pumping pump I (6) for pumping water is installed on one side of the housing (1). A connecting pipe adapted to the number of the circulation pipes (7) is connected to the water outlet of the pumping pump I (6). Each connecting pipe is respectively connected to one end of the corresponding circulation pipe (7). A pumping pump II (8) for draining water is installed on the housing (1) below the pumping pump I (6). A connecting pipe adapted to the number of the circulation pipes (7) is also connected to the water intake of the pumping pump II (8) and is connected to the other end of the corresponding circulation pipe (7), thereby forming a circulating liquid flow channel.

2. The photovoltaic energy storage device with a cooling structure according to claim 1, wherein: It further includes a guide plate (11), a sliding rod (12) and a moving plate (13). A set of guide plates (11) are symmetrically provided on both sides of the mounting frame (9). The sliding rods (12) are respectively penetrated and slidably provided on the facing sides of the same group of guide plates (11). A moving plate (13) is provided between the sliding rods (12) on the same side, so that the two moving plates (13) are respectively located on both sides of the mounting frame (9) and are in contact with the corresponding phase change materials (5).

3. The photovoltaic energy storage device with a cooling structure according to claim 2, characterized in that: It further includes a mounting seat (14), an I-shaped plate (15), a slide rail (16) and a clamping rod (17). Mounting seats (14) are provided on both sides of the mounting frame (9). The I-shaped plate (15) is penetrated and slidably provided on the mounting seat (14). The top end of the I-shaped plate (15) is connected to the upper cover (2). Slide rails (16) are inclinedly provided on both lower sides of the I-shaped plate (15). The clamping rod (17) is slidably provided in the slide rail (16). The other end of the clamping rod (17) is connected to the adjacent sliding rod (12) on the same side.

4. A photovoltaic energy storage device with a cooling structure according to claim 3, characterized in that: It further includes an elastic member (18). An elastic member (18) is provided between the sliding rod (12) and the corresponding guide plate (11).

5. A photovoltaic energy storage device with a cooling structure according to claim 4, characterized in that: It further includes a protective shell (19). A protective shell (19) surrounding the pumping pump I (6) and the pumping pump II (8) is provided on the housing (1).

6. The photovoltaic energy storage device with a cooling structure according to claim 5, characterized in that: It further includes a foot support (20). A foot support (20) is provided at each of the four corners of the bottom of the housing (1).

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