A heat dissipation structure of an energy storage cabinet

Abstract

The utility model relates to a heat dissipation structure of energy storage cabinet, including the cabinet body, the cabinet body is in a side is provided with the partition that divides the cabinet body into the first accommodating cavity and the second accommodating cavity, the first accommodating cavity is in the parallel setting of interval and is provided with three air vents in the corresponding place of two ends on the side cavity wall of the partition and the first accommodating cavity away from the partition, the air inlet of the air vent in two sides is set up on the cavity wall of the side of the first accommodating cavity away from the partition, and the air outlet is set up on the side surface towards the center of the first accommodating cavity, the air inlet of the air vent in the middle is set up on the surface opposite with the air vent of two sides, and the air outlet is set up on the partition, the second accommodating cavity is provided with the cavity wall through -hole on the cavity wall opposite with the air outlet of the middle air vent, and the cavity wall through -hole is installed with the heat dissipation fan. The utility model improves the heat dissipation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of energy storage cabinets, and in particular to a heat dissipation structure for an energy storage cabinet. Background Technology

[0002] An energy storage cabinet is a device used to store and release electrical energy. It typically consists of a cabinet, a series of battery packs installed inside, an inverter, and a charge / discharge controller. The battery packs store electrical energy and release it when needed to supply power. With the rapid development of renewable energy, the demand for energy storage cabinets is constantly increasing. They are widely used in solar and wind power generation systems to address the challenges posed by energy volatility. Energy storage cabinets are also used in electric vehicle charging stations, microgrids, and industrial applications. When storing electrical energy, energy storage cabinets generate a significant amount of heat. If this heat cannot be dissipated in time, the cabinet temperature will rise, affecting storage efficiency and safety. To ensure proper heat dissipation of the battery modules, most common energy storage cabinet cooling solutions employ forced air cooling. A typical structure involves an air inlet on one side of the cabinet and an air outlet with an exhaust fan on the other. The fan draws in cool external air, which is then expelled as hot air after passing through the cabinet. However, in such structures, the energy storage cabinet typically lacks an independent air duct system. Airflow relies solely on natural gaps between equipment, resulting in significant resistance, poor circulation, and the formation of stagnant air zones in the corners of the cabinet, leading to uneven heat dissipation. Furthermore, in this structure, the airflow path is singular and direct, resulting in short contact time between cold air and hot equipment, insufficient heat exchange, and a need to improve heat dissipation efficiency. The airflow generated by the fan seeks the path of least resistance, potentially passing quickly through only a few loose gaps while bypassing more congested but hotter areas. These bypassed areas experience almost no airflow, leading to continuous heat accumulation and the formation of localized hotspots, resulting in poor heat dissipation. (Example: Chinese patent CN...) 218587542U describes an outdoor energy storage cabinet, authorized on March 7, 2023. Although it has two air ducts, after the airflow enters through the air inlet, the first partition blocks the battery pack, so part of the airflow flows out through the first air duct, and the other part flows into the second air duct through the ventilation holes of the second partition. The airflow only flows through the side opposite to the battery pack area and the power module. There is no airflow between the stacked battery packs in the battery pack area, so the heat between the battery packs cannot be effectively dissipated. Utility Model Content

[0003] To address the shortcomings of existing systems, this utility model provides a heat dissipation structure for an energy storage cabinet.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a heat dissipation structure for an energy storage cabinet, including a cabinet body. A partition is provided on one side of the cabinet body, dividing the interior into a first accommodating cavity and a second accommodating cavity. Three ventilation channels are arranged side-by-side at intervals within the first accommodating cavity, with their ends corresponding to the partition and the cavity wall of the first accommodating cavity on the side away from the partition. The air inlets of the two side ventilation channels are located on the cavity wall of the first accommodating cavity on the side away from the partition, and their air outlets are located on the side surface facing the center of the first accommodating cavity. The air inlet of the middle ventilation channel is located on the surface opposite to the two side ventilation channels, and its air outlet is located on the partition. A cavity wall through-hole is provided on the cavity wall of the second accommodating cavity opposite to the air outlet of the middle ventilation channel, and a cooling fan is installed in the cavity wall through-hole.

[0005] Preferably, the first accommodating cavity has multiple ventilated mounting brackets spaced parallel to each other along the axial direction of the ventilation channels between two adjacent ventilation channels.

[0006] Preferably, the first accommodating cavity is covered with two cover plates on the mounting brackets on both sides.

[0007] Preferably, the cover plate is provided with ventilation holes.

[0008] Preferably, the cabinet is provided with a mounting bracket for installing partitions.

[0009] Preferably, the air outlets of the ventilation ducts on both sides and the air inlet of the ventilation duct in the middle are both air outlets that extend from one side of the partition to the cavity wall of the first accommodating cavity away from the partition.

[0010] Preferably, the air inlets of the ventilation ducts on both sides are mesh-shaped air inlets.

[0011] Preferably, the second accommodating cavity is further provided with heat dissipation holes on the cavity wall opposite to the air outlet of the intermediate ventilation duct.

[0012] The beneficial effects of this utility model are as follows: This utility model enables cold air to flow evenly in the first accommodating cavity, uniformly cooling all battery packs, ensuring the balance of power supply temperature inside the energy storage cabinet, and improving the heat dissipation efficiency of the energy storage cabinet. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the internal structure of the cabinet in an embodiment of this utility model;

[0014] Figure 2 This is an embodiment of the present utility model. Figure 1 A schematic diagram of the cross-sectional structure along the middle AA;

[0015] Figure 3 This is a structural schematic diagram of the back of an embodiment of this utility model;

[0016] Figure 4 This is a front structural diagram of an embodiment of the present invention;

[0017] Component names and serial numbers in the diagram: 1-Cabinet body; 10-First accommodating cavity; 11-Second accommodating cavity; 12-Heat dissipation hole; 2-Baffle plate; 20-Mounting bracket; 3-Ventilation duct; 3a-Left side ventilation duct; 3b-Right side ventilation duct; 3c-Middle ventilation duct; 4-Cavity wall through hole; 5-Cooling fan; 6-Mounting bracket; 7-Cover plate; 70-Ventilation hole. Detailed Implementation

[0018] To more clearly illustrate the purpose, technical solution, and advantages of the embodiments of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. A clear and complete description will be provided. Obviously, the described embodiments are some, but not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Furthermore, the directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," and "outer," are only for reference to the directions in the accompanying drawings. The use of directional terms is for better and clearer explanation and understanding of this utility model, and is not intended to indicate or imply any necessary orientation of this utility model; therefore, they should not be construed as limitations on this utility model.

[0019] Examples of embodiments of this utility model Figures 1 to 4 As shown, a heat dissipation structure for an energy storage cabinet includes a cabinet body 1. The cabinet body 1 is a hollow, square cabinet. A partition 2 is provided on one side of the cabinet body 1, dividing the interior into a first accommodating cavity 10 and a second accommodating cavity 11. The partition 2 is located on one side of the cabinet body 1 along its length, and its sidewall abuts against the inner surface of the cabinet body 1. Preferably, the partition 2 is sealed within the cabinet body 1, meaning there is no air leakage between the partition 2 and the inner surface of the cabinet body 1. Figure 1 and Figure 2As shown when cabinet 1 is placed vertically, partition 2 is horizontally positioned at the lower part of cabinet 1, dividing it into upper and lower sections. The upper section serves as the first receiving cavity 10, and the lower section as the second receiving cavity 11. When cabinet 1 is placed horizontally, partition 2 is vertically positioned at the rear of cabinet 1, dividing it into front and rear sections. The front section serves as the first receiving cavity 10, and the rear section as the second receiving cavity 11. The first receiving cavity 10 is used to house the battery pack, while the second receiving cavity 11 can be used to house other components, allowing the battery pack and other components to be housed in two separate cavities. This also facilitates the arrangement of the battery pack within the first receiving cavity 10. The partition 2 is installed within cabinet 1 using mounting brackets 20 for mounting the partition 2. Figure 1As shown, a mounting bracket 20 is respectively installed on the left and right sides of the lower part of the cabinet 1, and then the partition 2 is installed on the mounting bracket 20. At the same time, the side wall of the partition 2 abuts against the inner surface of the cabinet 1. At this time, the mounting bracket 20 can be an L-shaped mounting bracket. Three ventilation channels 3 are arranged side by side at intervals in the first accommodating cavity 10, with their ends corresponding to the partition 2 and the cavity wall of the first accommodating cavity 10 on the side away from the partition 2. The three ventilation channels 3 are arranged sequentially on the left, middle and right sides of the first accommodating cavity 10, and can be called left ventilation channel 3a, right ventilation channel 3b and middle ventilation channel 3c. The left ventilation channel 3a and right ventilation channel 3b are set close to the cavity wall of the first accommodating cavity 10. The two ends of the ventilation duct 3 are located at the lower partition 3 and the upper cavity wall of the first receiving cavity 10, respectively. In other words, the ventilation duct 3 connects the partition 2 and the cavity wall of the first receiving cavity 10 opposite to the partition 2. The ventilation duct 3 can be formed by a pipe installed within the first receiving cavity 10 or by a baffle installed within the first receiving cavity 10 and the cavity wall of the first receiving cavity 10. The air inlets of the ventilation ducts 3 on both sides are located on the cavity wall of the first receiving cavity 10 on the side away from the partition 2, and the air outlets are located on the side surface facing the center of the first receiving cavity 10. That is, the air inlets of the left ventilation duct 3a and the right ventilation duct 3b are located on the upper cavity wall of the first receiving cavity 10. The ventilation system is formed by through holes on the upper wall of the first accommodating cavity 10. If these through holes are arranged in a grid pattern, a grid-like air inlet is formed. Simultaneously, the air outlets of the left ventilation duct 3a and the right ventilation duct 3b are located on the side surfaces of the ventilation ducts 3a facing the center of the first accommodating cavity 10, that is, on the right side surface of the left ventilation duct 3a and the left side surface of the right ventilation duct 3b. The lower ends of the left and right ventilation ducts 3a and 3b are closed. Thus, cold air enters from the upper air inlet, flows downwards along the ventilation duct, and then flows out along the side air outlet, instead of flowing out from the lower end of the ventilation duct. The cold air flowing out from the side blows onto the battery installed in the first accommodating cavity 10. The surface of the group can be more comprehensively and evenly covered to improve the heat dissipation efficiency of the battery pack. The air inlet of the middle ventilation channel 3 is set on the surface opposite to the ventilation channels 3 on both sides, and the air outlet is set on the partition 2. The structure of the middle ventilation channel 3c is opposite to that of the left ventilation channel 3a and the right ventilation channel 3b. The middle ventilation channel 3c is in a closed state corresponding to the upper cavity wall of the first accommodating cavity 10, that is, the upper end of the middle ventilation channel 3c is closed. Its air inlet is set on the left surface opposite to the left ventilation channel 3a and the right surface opposite to the right ventilation channel 3b. The air outlet is set on the partition 2 so that the middle ventilation channel 3c and the second accommodating cavity 11 are connected.The second accommodating cavity 11 has a cavity wall through hole 4 on the cavity wall opposite to the air outlet of the intermediate ventilation duct 3c. The cavity wall through hole 4 is located on the cavity wall at the lower part of the second accommodating cavity 11 and is opposite to the air outlet of the intermediate ventilation duct 3c. A cooling fan 5 is installed in the cavity wall through hole 4, and the cooling fan 5 draws away hot air from the intermediate ventilation duct 3c. In this structure, cold air enters through the air inlets of the left-side ventilation duct 3a and the right-side ventilation duct 3b at the top of the cabinet 1, and then flows out through their air outlets to the battery pack inside the first accommodating cavity 10. At this point, the battery pack is divided into two parts: one part is located between the left-side ventilation duct 3a and the middle ventilation duct 3c, and the other part is located between the middle ventilation duct 3c and the right-side ventilation duct 3a. After heat exchange on the battery pack, the cold air becomes hot air, which flows into the middle ventilation duct 3c through its air inlet and then out through its air outlet. Under the suction of the cooling fan 5, the hot air is exhausted from the cabinet 1. This structure creates a system where cold air enters from both sides and hot air exits from the middle. The cold air can enter more evenly and comprehensively from both sides and cover all the battery packs, increasing the flow time of the cold air within the first accommodating cavity 10 and resulting in higher heat dissipation efficiency.

[0020] Further improvements, such as Figure 2 As shown, within the first accommodating cavity 10, multiple ventilated mounting brackets 6 are arranged parallel to each other along the axial direction of adjacent ventilation channels 3. The middle ventilation channel 3c and the left ventilation channel 3a form the left mounting area for the battery pack on the left, and the middle ventilation channel 3c and the right ventilation channel 3b form the right mounting area for the battery pack on the right. The mounting brackets 6 are arranged alternately from top to bottom in the left and right mounting areas, respectively. The mounting brackets 6 are used to install the battery pack. Ventilation of the mounting brackets 6 can be achieved by designing the mounting brackets with a hollow structure, allowing for more compact installation of the battery pack, and heat dissipation through the hollow parts of the mounting brackets 6. Figure 1 As shown, the first accommodating cavity 10 has two cover plates 7 corresponding to the mounting brackets 6 on both sides. One cover plate 7 is provided corresponding to the left mounting area, and another cover plate 7 is provided corresponding to the right mounting area. The two cover plates 7 are spaced apart on opposite sides, which facilitates the installation of the mounting brackets 6 in the cabinet 1 and improves the strength of the mounting brackets 6. The cover plates 7 are provided with ventilation holes 70, which are used to dissipate heat from the side of the battery pack corresponding to the cover plate 7.

[0021] Further improvements, such as Figure 1 and Figure 2As shown, the air outlets of the ventilation ducts 3 on both sides and the air inlet of the ventilation duct 3 in the middle are both air outlets extending from one side of the partition 2 to the cavity wall of the first accommodating cavity 10 away from the partition 2. That is to say, the right side surface of the left ventilation duct 3a and the left side surface of the right ventilation duct 3b are both open structures, and this openness constitutes their air outlets. Similarly, the left side surface and the right side surface of the middle ventilation duct 3c are both open structures, and this open structure constitutes its air inlet, which facilitates the flow of air.

[0022] Further improvements, such as Figure 3 As shown, the second accommodating cavity 11 is also provided with a heat dissipation hole 12 on the cavity wall opposite to the air outlet of the intermediate ventilation duct 3c. The heat dissipation hole 12 is located on the cavity wall where the cooling fan 5 is located, which speeds up the dissipation of hot air from the second accommodating cavity 11 and improves the heat dissipation efficiency.

[0023] Although the present invention has been described in detail above with general description and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A heat dissipation structure for an energy storage cabinet, characterized in that: The system includes a cabinet. Inside the cabinet, a partition is provided on one side, dividing the interior into a first accommodating cavity and a second accommodating cavity. Within the first accommodating cavity, three ventilation channels are arranged side-by-side at intervals, with their ends corresponding to the partition and the cavity wall of the first accommodating cavity on the side away from the partition. The air inlets of the two side ventilation channels are located on the cavity wall of the first accommodating cavity on the side away from the partition, and their air outlets are located on the side surface facing the center of the first accommodating cavity. The air inlet of the middle ventilation channel is located on the surface opposite to the two side ventilation channels, and its air outlet is located on the partition. The second accommodating cavity has a cavity wall through-hole on its cavity wall opposite to the air outlet of the middle ventilation channel, and a cooling fan is installed within the cavity wall through-hole.

2. The heat dissipation structure of the energy storage cabinet according to claim 1, characterized in that... The first accommodating cavity contains multiple ventilated mounting brackets spaced parallel to each other along the axial direction of the ventilation channels between two adjacent ventilation channels.

3. The heat dissipation structure of the energy storage cabinet according to claim 2, characterized in that... The first accommodating cavity is covered with two cover plates on the mounting brackets on both sides.

4. The heat dissipation structure of the energy storage cabinet according to claim 3, characterized in that... The cover plate is provided with ventilation holes.

5. The heat dissipation structure of the energy storage cabinet according to claim 1, characterized in that... The cabinet is equipped with mounting brackets for installing partitions.

6. The heat dissipation structure of the energy storage cabinet according to claim 1, characterized in that... The air outlets of the ventilation ducts on both sides and the air inlet of the ventilation duct in the middle are both air outlets that extend from one side of the partition to the cavity wall of the first accommodating cavity away from the partition.

7. The heat dissipation structure of the energy storage cabinet according to claim 1, characterized in that... The air inlets of the ventilation ducts on both sides are mesh-shaped air inlets.

8. The heat dissipation structure of the energy storage cabinet according to claim 1, characterized in that... The second accommodating cavity is also provided with heat dissipation holes on the cavity wall opposite to the air outlet of the intermediate ventilation duct.

Images