A power storage device protection system

Abstract

The utility model discloses a kind of electric power energy storage equipment protection systems, including cover shell, multiple supporting plates are fixedly installed in the cover shell inside and are evenly distributed along longitudinal direction, space for placing energy storage module is formed between adjacent supporting plates, the bottom of supporting plate is fixedly installed with corrugated board, there are multiple heat exchange flow channels evenly distributed between corrugated board and supporting plate bottom wall;The position of the rear wall of cover shell is close to its bottom is installed with air inlet louvre, cover shell top is equipped with the exhaust cylinder being communicated with its inner cavity, fan that is installed in the inside of exhaust cylinder and is upwards, the top of exhaust cylinder is installed with self-lifting cover plate.The electric power energy storage equipment protection system provided in the utility model integrates liquid cooling and air cooling, solves the problem that cooling mode is single, there is single-point fault hidden danger, solves the problem that heat dissipation efficiency is limited and system complexity is high.

Description

Technical Field

[0001] This utility model relates to a protection system for power energy storage equipment, belonging to the field of power energy storage technology. Background Technology

[0002] Energy storage devices include various types such as lithium-ion batteries, lead-acid batteries, flow batteries, and supercapacitors. Different types of energy storage devices generate different amounts of heat during operation, but all require cooling protection. During the charging and discharging process, internal chemical reactions in energy storage devices generate heat. If too much heat accumulates, internal resistance may increase, leading to a decrease in efficiency. Energy storage systems consist of a large number of battery cells. If heat dissipation is insufficient, excessive temperature differences in local areas can cause inconsistent aging rates among the cells, limiting the overall capacity due to the "weakest link effect."

[0003] Currently, the main cooling protection technologies for power storage devices are air cooling and liquid cooling, which maintain the internal temperature difference of the battery pack within 2°C-3°C to improve system reliability. However, practical experience has shown that existing cooling protection devices for power storage devices still have the following technical problems: It suffers from the problem of a single cooling method and the potential for single-point failure. When the cooling system fails (such as the fan stops or the pump fails), the energy storage device may overheat and cause thermal runaway. There is a problem with limited heat dissipation efficiency. Traditional air cooling has low heat dissipation efficiency in high-temperature environments, while liquid cooling systems, although highly efficient, require complex piping, increasing system complexity.

[0004] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] This utility model addresses the shortcomings of the prior art by providing a power energy storage equipment protection system that integrates liquid cooling and air cooling, solving the problems of single cooling methods, potential single-point faults, limited heat dissipation efficiency, and high system complexity.

[0006] To solve the above technical problems, the present invention adopts the following technical solution: A power energy storage device protection system includes a housing, inside which multiple trays are fixedly installed and evenly distributed along the longitudinal direction, and a space for placing energy storage modules is formed between adjacent trays. Corrugated plates are fixedly installed on the bottom of each tray, and multiple heat exchange channels are evenly distributed between the corrugated plates and the bottom wall of the tray. An air inlet louver is installed on the rear wall of the cover near its bottom. An exhaust pipe connected to the inner cavity is provided on the top of the cover. An upward-drawing fan is installed inside the exhaust pipe. A self-lifting cover is installed on the top of the exhaust pipe.

[0007] Furthermore, a water inlet chamber is fixedly installed on the outer wall of the left side of the casing.

[0008] Furthermore, a water inlet connector is installed on the side of the water inlet chamber away from the casing.

[0009] Furthermore, a water distribution cavity is formed between the water inlet chamber and the outer wall of the casing, and the water distribution cavity is connected to the end of the heat exchange channel through a connecting hole.

[0010] Furthermore, a water return chamber is fixedly installed on the right outer wall of the casing.

[0011] Furthermore, a return water connector is installed on the side of the return water chamber away from the casing.

[0012] Furthermore, a water collection cavity is formed between the return water chamber and the outer wall of the casing, and the water collection cavity is connected to the end of the heat exchange channel through a connecting hole.

[0013] Furthermore, the connecting holes are formed on the left and right side walls of the casing.

[0014] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages: This utility model integrates liquid cooling and air cooling, which can be used simultaneously or separately. The two methods work together to cool and protect the energy storage module from overheating, solving the problems of single cooling methods, potential single-point failure, and limited heat dissipation efficiency. This invention features corrugated plates installed at the bottom of the pallet, forming multiple evenly distributed heat exchange channels between the corrugated plates and the bottom wall of the pallet. The corrugated plates not only improve the support strength of the pallet but also facilitate the flow of the heat exchange medium, avoiding the need for complex liquid cooling pipelines and reducing system complexity.

[0015] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional diagram of the pallet and the corrugated sheet; Figure 3 yes Figure 1 Enlarged view at point M; Figure 4 This is a schematic diagram of the utility model in use.

[0017] In the diagram, 1-cover, 2-inlet water chamber, 3-return water chamber, 4-inlet water connector, 5-return water connector, 6-support plate, 7-corrugated plate, 8-heat exchange channel, 9-connecting hole, 10-exhaust stack, 11-fan, 12-cover plate, 13-inlet louver, 14-energy storage module. Detailed Implementation

[0018] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0019] like Figures 1-4 As shown in the diagram, this utility model provides a protection system for an energy storage device, including a housing 1. Multiple longitudinally evenly distributed support plates 6 are fixedly installed inside the housing 1, forming a space between adjacent support plates 6 for placing an energy storage module 14. Corrugated plates 7 are fixedly installed on the bottom of each support plate 6, and multiple evenly distributed heat exchange channels 8 exist between the corrugated plates 7 and the bottom wall of the support plate 6. The corrugated plates 7 not only improve the supporting strength of the support plates 6 but also facilitate the flow of the heat exchange medium.

[0020] A water inlet chamber 2 is fixedly installed on the outer wall of the left side of the cover 1. A water inlet connector 4 is installed on the side of the water inlet chamber 2 away from the cover 1. A water distribution cavity is formed between the water inlet chamber 2 and the outer wall of the cover 1. The water distribution cavity is connected to the end of the heat exchange channel 8 through the connecting hole 9.

[0021] A return water chamber 3 is fixedly installed on the right outer wall of the casing 1. A return water connector 5 is installed on the side of the return water chamber 3 away from the casing 1. A water collection cavity is formed between the return water chamber 3 and the outer wall of the casing 1. The water collection cavity is connected to the end of the heat exchange channel 8 through the connecting hole 9.

[0022] The connecting hole 9 is opened on the left and right side walls of the cover 1.

[0023] The circulating cooling water enters the water distribution chamber in the water inlet chamber 2 from the water inlet connector 4, and is distributed to the heat exchange channel 8 between the corrugated plate 7 and the support plate 6. After absorbing the heat of the energy storage module 14, it is collected in the return water chamber 3 and flows out through the return water connector 5.

[0024] An air inlet louver 13 is installed on the rear wall of the cover 1 near its bottom. The air inlet louver 13 can be opened or closed, and when the air inlet louver 13 is opened, air is introduced into the cover 1.

[0025] The top of the casing 1 is provided with an exhaust pipe 10 that communicates with its inner cavity. An upward-drafting fan 11 is installed inside the exhaust pipe 10, and a self-lifting cover plate 12 is installed on the top of the exhaust pipe 10. When the fan 11 is working, the cover plate 12 slides upward under the action of airflow, opening the top opening of the exhaust pipe 10. When the fan 11 stops working, the cover plate 12 slides downward under the action of gravity, closing the top opening of the exhaust pipe 10 to prevent dust from entering.

[0026] The specific working principle of this utility model is as follows: This utility model integrates liquid cooling and air cooling, which can be used simultaneously or separately. The two methods work together to achieve cooling protection for the energy storage module to prevent overheating.

[0027] During liquid cooling, circulating cooling water enters the water distribution chamber in the water inlet chamber 2 from the water inlet connector 4 and is distributed to the heat exchange channel 8 between the corrugated plate 7 and the support plate 6. The lower surface of the corrugated plate 7 is in contact with the energy storage module 14. During the flow of the circulating cooling water in the heat exchange channel 8, it can absorb the heat from the top of the energy storage module 14 and also absorb the heat from the bottom of the energy storage module 14 through the support plate 6. The circulating cooling water that has absorbed the heat is collected in the return water chamber 3 and flows out through the return water connector 5.

[0028] When air cooling is performed, the air inlet louvers 13 are opened, the fan 11 is turned on, and the cover plate 12 slides upward under the action of airflow, opening the top opening of the exhaust pipe 10. The fan 11 provides power for the airflow inside the casing 1, carrying away the heat generated by the energy storage module 14 and cooling it down.

[0029] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A protection system for an energy storage device, characterized in that: Includes a housing (1), inside which multiple trays (6) are fixedly installed and evenly distributed along the longitudinal direction. A space for placing an energy storage module (14) is formed between adjacent trays (6). Corrugated plates (7) are fixedly installed at the bottom of each tray (6). Multiple heat exchange channels (8) are evenly distributed between the corrugated plates (7) and the bottom wall of the trays (6). An air inlet louver (13) is installed on the rear wall of the cover (1) near its bottom. An exhaust pipe (10) is provided on the top of the cover (1) and communicates with its inner cavity. An upward-drawing fan (11) is installed inside the exhaust pipe (10). A self-lifting cover plate (12) is installed on the top of the exhaust pipe (10).

2. The power storage device protection system as described in claim 1, characterized in that: A water inlet chamber (2) is fixedly installed on the outer wall of the left side of the cover (1).

3. The power storage device protection system as described in claim 1, characterized in that: A water inlet connector (4) is installed on the side of the water inlet chamber (2) away from the cover (1).

4. The power storage device protection system as described in claim 2, characterized in that: A water distribution cavity is formed between the water inlet chamber (2) and the outer wall of the casing (1). The water distribution cavity is connected to the end of the heat exchange channel (8) through the connecting hole (9).

5. The power storage device protection system as described in claim 4, characterized in that: A water return chamber (3) is fixedly installed on the right outer wall of the cover (1).

6. The power storage device protection system as described in claim 5, characterized in that: A return water connector (5) is installed on the side of the return water chamber (3) away from the cover (1).

7. The power storage device protection system as described in claim 5, characterized in that: A water collection cavity is formed between the return water chamber (3) and the outer wall of the casing (1), and the water collection cavity is connected to the end of the heat exchange channel (8) through the connecting hole (9).

8. The power storage device protection system as described in claim 7, characterized in that: The connecting hole (9) is opened on the left and right side walls of the cover (1).

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