Liquid cooling plate and photovoltaic panel using same

Abstract

The utility model discloses a liquid cooling plate, the liquid cooling plate is used for cooling a photovoltaic panel, the liquid cooling plate comprises an upper cover plate and a lower cover plate, and a cavity for cooling liquid to flow through is formed between the upper cover plate and the lower cover plate; the surface of the lower cover plate is provided with a liquid inlet connector allowing cooling liquid to enter the cavity and a liquid outlet connector allowing the cooling liquid to flow out. The liquid inlet connector corresponds to the bottom of the cavity and is used for allowing cooling liquid to enter from the bottom of the cavity. The liquid outlet connector corresponds to the top of the cavity and is used for allowing the cooling liquid to flow out from the top of the cavity, the flowing efficiency of the cooling liquid is slow under the action of gravity, heat exchange can be better generated between the cooling liquid and the photovoltaic panel, and therefore the heat exchange efficiency is improved; when the liquid cooling plate is used for cooling the photovoltaic panel, a relatively high heat dissipation effect can be achieved; and meanwhile, the liquid cooling plate realizes cooling through heat exchange between the transmission cooling liquid and the photovoltaic panel, so that the noise generated by the liquid cooling plate is remarkably reduced compared with that generated by a fan, and the aim of being more mute can be achieved.

Description

Technical Field

[0001] The utility model relates to a liquid cooling plate and a photovoltaic panel using the liquid cooling plate. Background Art

[0002] Photovoltaic devices can convert solar radiation into electrical energy and are a clean and efficient power generation device;

[0003] Since photovoltaic panels are often placed close to the ground in settings, the photovoltaic device will generate higher temperatures when in operation. The temperature on the side close to the ground is not easy to dissipate, which may cause the photovoltaic device to overheat or even cause a fire.

[0004] In order to cool down the photovoltaic panel, the existing method is to set a cooling structure on the photovoltaic panel, as described in the patent document of Chinese Patent Publication No. CN220359126U.

[0005] Although this cooling structure can achieve the effect of cooling the photovoltaic panel, the heat dissipation through the cooling fan not only generates noise, but also has a relatively low heat dissipation efficiency. Utility Model Content

[0006] The utility model aims to provide a liquid cooling plate and a technical solution for a photovoltaic panel using the liquid cooling plate to address the deficiencies in the prior art. Using the liquid cooling plate to cool the photovoltaic panel is not only quieter, but also has higher heat dissipation efficiency.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0008] A liquid cooling plate, comprising

[0009] An upper cover plate and a lower cover plate, wherein a cavity for cooling liquid to flow through is formed between the upper cover plate and the lower cover plate;

[0010] The surface of the lower cover plate is provided with a liquid inlet joint for the coolant to enter the cavity and a liquid outlet joint for the coolant to flow out; the liquid inlet joint corresponds to the bottom of the cavity and is used for the coolant to enter from the bottom of the cavity; the liquid outlet joint corresponds to the top of the cavity and is used for the coolant to flow out from the top of the cavity.

[0011] By adopting the above technical solution, the coolant will enter the cavity of the liquid cooling plate from the liquid inlet joint at the bottom, and then flow out from the liquid outlet joint at the top. Under the action of gravity, the coolant flows more slowly, which can better exchange heat with the photovoltaic panel, thereby improving the heat exchange efficiency; using this liquid cooling plate to cool the photovoltaic panel can have a higher heat dissipation effect; at the same time, since the liquid cooling plate achieves cooling by transmitting coolant and exchanging heat with the photovoltaic panel, the noise it generates is significantly reduced compared to the fan, which can achieve a quieter purpose.

[0012] Furthermore, the liquid inlet joint is formed at the lower left corner or the lower right corner of the lower cover plate, and the liquid outlet joint is formed at the upper right corner or the upper left corner of the lower cover plate; the liquid inlet joint and the liquid outlet joint are arranged diagonally.

[0013] Furthermore, a side pressure structure is provided around the cavity, and the side pressure structure is sealed between the upper cover plate and the lower cover plate.

[0014] Furthermore, the side pressure structure includes a first side pressure and a second side pressure, one side of the first side pressure is provided with a tenon or a tenon groove, the second side pressure is provided with a tenon groove or a tenon adapted to the tenon or the tenon groove, and the first side pressure and the second side pressure are connected through the cooperation of the tenon and the tenon groove.

[0015] Furthermore, the edge pressure structure is connected to the upper cover plate and the lower cover plate by welding.

[0016] Furthermore, a potassium fluoroaluminate layer is provided on one side of the upper cover plate and the lower cover plate close to the edge pressure structure.

[0017] Furthermore, fins are provided in the cavity.

[0018] Furthermore, the fin height is 1 to 10 mm.

[0019] A photovoltaic panel is provided with any one of the above-mentioned liquid cooling plates, wherein the liquid cooling plate is connected to the back side of the photovoltaic panel.

[0020] Furthermore, the upper cover plate and the photovoltaic panel are connected by welding.

[0021] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0022] 1. The utility model can not only cool down the photovoltaic panels more quietly, but also has a higher heat dissipation effect;

[0023] 2. The edge pressure structure of the utility model has high structural stability and can seal the four sides of the liquid cooling plate;

[0024] 3. The utility model has fins in the cavity, which can disturb the coolant and thus improve the heat exchange efficiency between the coolant and the photovoltaic panel;

[0025] 4. The upper cover plate and the lower cover plate of the utility model are both provided with a potassium fluoroaluminate layer, which improves the corrosion resistance of the upper cover plate and the lower cover plate. At the same time, the potassium fluoroaluminate layer also improves the welding quality of the upper cover plate, the lower cover plate and the edge pressure structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The utility model is further described below in conjunction with the accompanying drawings:

[0027] Figure 1 This is a schematic diagram of the back structure of the liquid cooling plate of the utility model;

[0028] Figure 2 It is a partial enlarged structural schematic diagram of a corner of the liquid cooling plate of the utility model;

[0029] Figure 3 This is a schematic diagram of the structure of the utility model in a front view state after the upper cover plate is hidden;

[0030] Figure 4 This is a schematic diagram of the structure of the side pressure structure of the utility model in the mortise and tenon joint state;

[0031] Figure 5 It is a schematic diagram of the cross-sectional structure of the liquid cooling plate of the utility model;

[0032] In the figure: 1-upper cover; 2-lower cover; 21-liquid inlet connector; 22-liquid outlet connector;

[0033] 3-side pressure structure; 31-first side pressure; 32-second side pressure;

[0034] 4-tenon; 5-mortise; 6-fin; 7-cavity. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0036] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0037] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0038] Example 1

[0039] This liquid cooling plate is applied to the back of the photovoltaic panel to cool the photovoltaic panel and is suitable for the scene where the photovoltaic panel is set at an angle;

[0040] The liquid cooling plate comprises an upper cover plate 1 and a lower cover plate 2. Figure 2 , Figure 5 As shown;

[0041] The upper cover plate 1 and the lower cover plate 2 are arranged opposite to each other, and a side pressure structure 3 is arranged between the upper cover plate 1 and the lower cover plate 2;

[0042] The edge pressing structure 3 seals the gap between the upper cover plate 1 and the lower cover plate 2 at all sides, thereby forming a cavity 7 for the coolant to flow through between the upper cover plate 1 and the lower cover plate 2. Figure 2 , Figure 5 As shown;

[0043] The surface of the lower cover plate 2 is provided with a liquid inlet connector 21 and a liquid outlet connector 22. Figure 1 , Figure 5 As shown;

[0044] When the liquid cooling plate is applied to the back of the photovoltaic panel, it is tilted with the photovoltaic panel, and the liquid inlet joint 21 is lower than the liquid outlet joint 22 in the use state; in this way, the coolant flows upward from the low position and then flows out from the liquid outlet joint 22 located above. Under the action of gravity, the coolant flows slowly and can more fully achieve heat exchange with the photovoltaic panel.

[0045] The liquid inlet connector 21 and the liquid outlet connector 22 are arranged diagonally. Figure 1 As shown;

[0046] In this embodiment, the liquid inlet joint 21 is formed at the lower right corner of the lower cover plate 2, and the liquid outlet joint 22 is formed at the upper left corner of the lower cover plate 2. Figure 1 As shown;

[0047] By arranging the liquid inlet connector 21 and the liquid outlet connector 22 diagonally, the heat exchange efficiency between the coolant and the photovoltaic panel is further improved.

[0048] The edge pressure structure 3 is sealed and arranged between the upper cover plate 1 and the lower cover plate 2. Figure 2 As shown;

[0049] In this embodiment, the edge pressure structure 3 includes a first edge pressure 31 and a second edge pressure 32. Figure 2 , Figure 3 As shown;

[0050] The first side pressure 31 is perpendicular to the second side pressure 32, and the first side pressure 31 and the second side pressure 32 intersect at the edge positions around the liquid cooling plate;

[0051] Through the perpendicular intersection of the first side pressure 31 and the second side pressure 32, the upper cover plate 1 and the lower cover plate 2 closely attached to the two sides of the side pressure structure 3 are matched to form a rectangular cavity 7 in the liquid cooling plate, such as Figure 3 As shown;

[0052] The side pressure structure 3 is connected to the upper cover plate 1 and the lower cover plate 2 which are closely attached to the two sides thereof by welding;

[0053] In this embodiment, a potassium fluoroaluminate layer is provided on one side of the upper cover plate 1 close to the edge pressure structure 3, and the potassium fluoroaluminate layer is located between the upper cover plate 1 and the edge pressure structure 3;

[0054] In this embodiment, a potassium fluoroaluminate layer is provided on one side of the lower cover plate 2 close to the edge pressure structure 3, and the potassium fluoroaluminate layer is between the lower cover plate 2 and the edge pressure structure 3;

[0055] The potassium fluoroaluminate layer can not only improve the corrosion resistance of the upper cover plate 1 and the lower cover plate 2, but also can serve as a flux to improve the welding quality between the upper cover plate 1, the edge pressure structure 3 and the lower cover plate 2.

[0056] The first side press 31 and the second side press 32 are connected by mortise and tenon joints;

[0057] In this embodiment, a tenon 4 is formed at one end of the first side pressure 31, and a tenon groove 5 adapted to the tenon 4 is formed at a corresponding position of the second side pressure 32;

[0058] Through the tenon 4 and the tenon groove 5, the first side press 31 and the second side press 32 are fixed together. Figure 4 As shown;

[0059] By fixing with mortise and tenon joints, the structural stability of the edge pressure structure 3 can be improved.

[0060] The cavity 7 is provided with fins 6, such as Figure 5 As shown;

[0061] The fins 6 can disturb the coolant flowing through the cavity 7, thereby further improving the heat exchange efficiency between the coolant and the photovoltaic panel;

[0062] In this embodiment, the height of the fin 6 is 1.5 mm.

[0063] When the liquid cooling plate is used, it is attached to the back of the photovoltaic panel to cool the photovoltaic device;

[0064] In this embodiment, the upper cover plate 1 is connected to the photovoltaic panel by welding.

[0065] Example 2

[0066] This embodiment is different from the embodiment 1 in that, in this embodiment, the liquid inlet joint 21 is formed at the lower left corner of the lower cover plate 2 , and the liquid outlet joint 22 is formed at the upper right corner of the lower cover plate 2 .

[0067] In this embodiment, a tenon 4 is formed at one end of the second side pressure 32, and a tenon groove 5 adapted to the tenon 4 is formed at a position corresponding to the second side pressure 31, and the tenon 4 and the tenon groove 5 are mortise-jointed.

[0068] In this embodiment, the height of the fin 6 is 1 mm.

[0069] In this embodiment, the upper cover plate 1 is provided with a snap-fit ​​structure, and the upper cover plate 1 and the photovoltaic panel are fixed together by the snap-fit ​​structure.

[0070] Example 3

[0071] This embodiment is different from the embodiment 1 in that the height of the fin 6 in this embodiment is 2 mm.

[0072] In this embodiment, the first side pressure 31 and the second side pressure 32 are connected by welding.

[0073] In this embodiment, the upper cover plate 1 and the photovoltaic panel are connected by pipe threads.

[0074] Example 3

[0075] This embodiment is different from the embodiment 1 in that the height of the fin 6 in this embodiment is 10 mm.

[0076] Example 4

[0077] This embodiment is different from the embodiment 1 in that the height of the fin 6 is 8 mm.

[0078] In this embodiment, mounting ears are provided at the edge of the liquid cooling plate, and when the photovoltaic panel and the upper cover plate 1 are in abutment with each other, the photovoltaic panel and the liquid cooling plate are fixed by the cooperation of bolts and the mounting ears.

[0079] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. A liquid cooling plate, comprising An upper cover plate (1) and a lower cover plate (2), wherein a cavity (7) for cooling liquid to flow through is formed between the upper cover plate (1) and the lower cover plate (2); Features: The surface of the lower cover plate (2) is provided with a liquid inlet joint (21) for cooling liquid to enter the cavity and a liquid outlet joint (22) for cooling liquid to flow out; the liquid inlet joint (21) corresponds to the bottom of the cavity (7) and is used for cooling liquid to enter from the bottom of the cavity (7); the liquid outlet joint (22) corresponds to the top of the cavity (7) and is used for cooling liquid to flow out from the top of the cavity (7).

2. A liquid cooling plate according to claim 1, characterized in that: The liquid inlet joint (21) is formed at the lower left corner or the lower right corner of the lower cover plate (2), and the liquid outlet joint (22) is formed at the upper right corner or the upper left corner of the lower cover plate (2); the liquid inlet joint (21) and the liquid outlet joint (22) are arranged diagonally.

3. The liquid cooling plate according to claim 1, characterized in that: The cavity (7) is provided with an edge pressing structure (3) around its periphery, and the edge pressing structure (3) is sealingly arranged between the upper cover plate (1) and the lower cover plate (2).

4. A liquid cooling plate according to claim 3, characterized in that: The side pressing structure (3) comprises a first side pressing (31) and a second side pressing (32); a tenon (4) or a tenon groove (5) is provided on one side of the first side pressing (31); a tenon groove (5) or a tenon (4) adapted to the tenon (4) or the tenon groove (5); the first side pressing (31) and the second side pressing (32) are connected by the tenon (4) and the tenon groove (5) being matched.

5. The liquid cooling plate according to claim 3, characterized in that: The edge pressure structure (3) is connected to the upper cover plate (1) and the lower cover plate (2) by welding.

6. A liquid cooling plate according to any one of claims 3 to 5, characterized in that: The upper cover plate (1) and the lower cover plate (2) are each provided with a potassium fluoroaluminate layer on one side close to the edge pressure structure (3).

7. The liquid cooling plate according to claim 1, characterized in that: Fins (6) are arranged in the cavity (7).

8. The liquid cooling plate according to claim 7, characterized in that: The fin (6) has a height of 1 to 10 mm.

9. A photovoltaic panel, characterized in that: The photovoltaic panel is provided with a liquid cooling plate according to any one of claims 1 to 8, and the liquid cooling plate is connected to the back side of the photovoltaic panel.

10. A photovoltaic panel according to claim 9, characterized in that: The upper cover plate (1) is connected to the photovoltaic panel by welding.

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