Low-energy-consumption air-cooled energy storage battery cabin

Abstract

A plurality of groups of electric cabinets are arranged in a cabin body of the low-energy-consumption air-cooled energy storage battery cabin, and each group of electric cabinets comprises a plurality of battery clusters; the structure of the battery cluster comprises a mounting cabinet, wherein a battery management module and a battery pack PACK are arranged in the mounting cabinet; each group of battery packs PACK comprises a plurality of single batteries which are stacked along the height direction; side air ducts are arranged on the two sides of an installation cabinet of the battery cluster respectively, and a plurality of first air outlet holes for blowing air to the side faces of the single batteries are formed in the side air ducts. A plurality of second air outlet holes are formed in the top of the mounting cabinet of the battery cluster; an air conditioner is arranged in the middle of each group of electric cabinets, and the air outlet end is communicated with the inlet of each side air duct through an air supply pipe; a plurality of air inlets are formed in the bottom of the cabin body, and a plurality of air outlets and cooling fans are arranged at the top; the air conditioner further comprises a control module and a temperature and humidity sensor, and the control module is connected with the battery management module, the temperature and humidity sensor, a controller of the air conditioner and the cooling fan through electric signals. According to the utility model, the energy consumption of the battery compartment is reduced.

Description

A low-energy-consumption air-cooled energy storage battery compartment Technical Field

[0001] This utility model relates to the field of energy storage technology, and in particular to a low-energy-consumption air-cooled energy storage battery compartment. Background Technology

[0002] Energy storage battery compartments require adequate ventilation and heat dissipation to ensure the safe operation of the battery system. Currently, the main temperature control solution for battery compartments is to install air conditioning units inside the compartment, adjusting the air conditioning operation based on the real-time temperature. This temperature control solution has several problems: the air conditioning system itself has high energy consumption, significantly impacting the profitability of the energy storage power station. Ventilation is poor on the sides adjacent to each battery cluster within each row of battery cabinets, and on the sides adjacent to each battery pack within each battery cluster. This means the temperature in the central area of ​​each unit in the battery system is higher than the outer area, resulting in poor temperature uniformity. Furthermore, during the charging and discharging process, due to internal chemical reactions and external environmental factors, harmful gases such as hydrogen and carbon monoxide may be generated. When these harmful gases reach a certain concentration, they pose a serious threat to the personal safety of maintenance personnel and the operation of the battery compartment equipment. Therefore, timely removal of harmful gases generated by the energy storage batteries is crucial for the safe operation of the battery compartment. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model provides a low-energy-consumption air-cooled energy storage battery compartment, aiming to reduce battery compartment energy consumption while ensuring safe and stable operation.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A low-energy-consumption air-cooled energy storage battery compartment includes a compartment body, wherein multiple sets of electrical cabinets are provided inside the compartment body, each set of electrical cabinets includes several battery clusters arranged along a first direction, and the multiple sets of electrical cabinets are spaced apart along a second direction, wherein the second direction is perpendicular to the first direction.

[0006] The battery cluster includes an installation cabinet containing a battery management module and one or two battery packs arranged along a first direction.

[0007] Each of the battery packs mentioned above includes several individual cells stacked along the height direction;

[0008] The mounting cabinet of the battery cluster is provided with side air ducts on both sides along the first direction. The side air ducts are provided with a plurality of first air outlets, which are used to blow air to cool the side of the individual battery.

[0009] The top of the mounting cabinet for the battery cluster is provided with several second air outlets;

[0010] Each electrical cabinet is equipped with an air conditioner in the middle, and its air outlet is connected to the inlet of each of the side air ducts through an air supply pipe.

[0011] The bottom of the cabin is provided with several air inlets, and the top is provided with several air outlets and a cooling fan; the several air inlets are located between two adjacent sets of electrical cabinets, and between the inner wall of the cabin and the adjacent electrical cabinets;

[0012] It also includes a control module and a temperature and humidity sensor, wherein the control module is electrically connected to the battery management module, the temperature and humidity sensor, the air conditioner controller, and the cooling fan;

[0013] The temperature and humidity sensor includes sensors that detect the temperature and humidity of the interior and exterior environments of the cabin, respectively.

[0014] The further technical solution is as follows:

[0015] The inlet end of the side air duct is located at the bottom away from the second air outlet.

[0016] The battery clusters in each electrical cabinet are symmetrically distributed on both sides of the air conditioner.

[0017] A side air duct is provided between two adjacent battery clusters, and a plurality of first air outlets are provided on both sides of the duct.

[0018] The plurality of second air outlets are arranged at equal intervals.

[0019] The bottom of the cabin is fixed to the mounting surface by support feet, and a gap is formed between the bottom of the cabin and the mounting surface.

[0020] The top of the cabin is provided with a top cover, and the air outlets are located on both sides of the top cover along the second direction.

[0021] Both the air inlet and outlet are equipped with valves for adjusting their opening degree.

[0022] The distance between the two sets of battery packs arranged along the first direction is sufficient to accommodate an infrared detector.

[0023] A hydrogen detector is installed at the top of the cabin, which is connected to the control module.

[0024] The beneficial effects of this utility model are as follows:

[0025] This invention allows the battery compartment to be cooled by detecting the temperature and humidity inside and outside the compartment based on the heat load inside the compartment and the optimal operating temperature of the battery. This fully utilizes the low temperature of the outdoor air to cool the battery compartment, reducing the energy consumption required for air conditioning, achieving the goal of energy conservation and emission reduction, and improving the profitability of the energy storage system.

[0026] This invention allows for different ventilation modes to be adopted for different environmental conditions through the control module, which is highly flexible and enables the battery system to operate and work within a safe temperature range, thus extending the battery's lifespan.

[0027] This invention achieves external cooling of the battery cabinet in natural ventilation mode. Based on this, the air conditioning ventilation system is improved by setting side air ducts on both sides of the battery clusters. Cold air can be accurately delivered to the sides of the battery clusters that are adjacent to each other, and the first air outlet can accurately deliver air to the sides of each individual battery, preventing heat dissipation dead zones on the inside. This effectively improves the temperature uniformity of individual batteries in each battery cluster, thereby improving the temperature uniformity of each battery cluster and the battery cabinet.

[0028] Other features and advantages of this invention will be set forth in the following description or may be learned by practicing this invention. Attached Figure Description

[0029] Figure 1 is a plan view of the internal structure of an embodiment of the present invention from a top view.

[0030] Figure 2 is a front view of the layout of one of the electrical cabinets in the internal structure of this utility model embodiment.

[0031] Figure 3 is a schematic diagram of the internal structure of an embodiment of the present invention from a side view.

[0032] In the diagram: 1. Cabin; 2. Battery cluster; 3. Air inlet; 4. Support leg; 5. Side air duct; 6. Air conditioner; 7. Control cabinet; 8. Individual battery; 9. Air outlet; 10. Hydrogen detector; 11. Cooling fan; 12. Second air outlet; 20. Electrical cabinet; 51. First air outlet; 61. Air supply pipe; 101. Top cover. Detailed Implementation

[0033] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0034] Referring to Figures 1 to 3, the low-energy-consumption air-cooled energy storage battery compartment of this embodiment includes a compartment 1, and multiple sets of electrical cabinets 20 are provided inside the compartment 1. Each set of electrical cabinets 20 includes several battery clusters 2 arranged along a first direction. The multiple sets of electrical cabinets 20 are spaced apart along a second direction; the second direction is perpendicular to the first direction.

[0035] Battery cluster 2 includes an installation cabinet containing a battery management module and one or two battery packs arranged along a first direction;

[0036] Each battery pack includes several individual cells stacked along the height direction.

[0037] The mounting cabinet of the battery cluster 2 is provided with side air ducts 5 on both sides along the first direction. The side air ducts 5 are provided with several first air outlets 51, which are used to blow air to cool the side of the individual battery 8.

[0038] The top of the mounting cabinet for battery cluster 2 is provided with several second air outlets 12;

[0039] Each electrical cabinet 20 is equipped with an air conditioner 6 in the middle, and its air outlet is connected to the inlet of each side air duct 5 through an air supply pipe 61.

[0040] The bottom of the cabin 1 is provided with several air inlets 3, and the top is provided with several air outlets 9 and a cooling fan 11; the air inlets 3 are located between two adjacent sets of electrical cabinets 20, and between the inner wall of the cabin 1 and the adjacent electrical cabinets 20.

[0041] It also includes a control module and a temperature and humidity sensor. The control module is electrically connected to the battery management module, the temperature and humidity sensor, the controller of the air conditioner 6, and the cooling fan 11.

[0042] The temperature and humidity sensor includes sensors that detect the temperature and humidity of the interior and exterior environments of the cabin 1, respectively.

[0043] Specifically, the control module is preferably a PLC control module, which can be installed in the control cabinet 7 inside the cabin 1.

[0044] The temperature control principle of this embodiment is as follows:

[0045] (1) When the temperature of the individual battery 8 reaches the first temperature threshold (e.g., 25°C), the battery management module initiates temperature control. It detects the temperature difference between the internal and external environments using temperature and humidity sensors inside and outside the chamber, and simultaneously obtains the relative humidity outside the chamber. If the temperature of the individual battery 8 continues to rise to the second temperature threshold (e.g., 28°C), and if the external temperature is more than 10°C lower than the internal temperature and the humidity is within the set range, the natural ventilation mode is activated to eliminate residual heat inside the chamber. This involves turning on the cooling fan 11, allowing external cold air to flow in through several air inlets 3 at the bottom of the chamber 1 and out through several air outlets 9 at the top of the chamber 1. The cold airflow passes through both sides of each electrical cabinet in the second direction, carrying heat out of the chamber. If the external temperature is more than 10°C lower than the internal temperature but the humidity is not within the set range, the air conditioning cooling mode is activated. If the external temperature is higher than the internal temperature, the air conditioning cooling mode is also activated, i.e., the air conditioner 6 is started. At this time, the cold air blown out by the air conditioner 6 of each group of electrical cabinets 20 is sent into the side air duct 5 of each battery cluster 2 in the group of electrical cabinets 20 through the air supply pipe 61, and then blown out directly from the side of each battery 8 through several first air outlets 51 to achieve air cooling. The air carrying heat flows out from the second air outlet 12 at the top of the mounting cabinet of the battery cluster 2, and then flows out from the air outlet 9, maintaining the temperature of the individual battery 8 between the first temperature threshold and the second temperature threshold. (2) When the individual battery 8 is lower than the second temperature threshold (e.g., 0°C), the air conditioner heating mode is turned on to maintain the individual battery 8 between the first temperature threshold and the second temperature threshold.

[0046] In a preferred embodiment, the first air outlet 51 is directly disposed on the side panel of the mounting cabinet of the battery cluster 2, which constitutes one side wall of the side air duct 5.

[0047] The first air outlet 51 is distributed along the height direction, corresponding to the position of each individual battery cell 8. Airflow enters from the side of each individual battery cell 8 near the side air duct 5, blows to the other side along the first direction, and then flows upward from the second air outlet 12 after converging. This ensures that each individual battery cell 8 can be cooled. At the same time, the side of the individual battery cell 8 away from the side air duct 5 (i.e., the side of two adjacent battery packs facing each other) can also be cooled due to the converging effect. This improves the temperature uniformity of the battery pack and greatly enhances the cooling effect.

[0048] As a preferred embodiment, the inlet end of the side air duct 5 is located at the bottom, away from the second air outlet 12. This extends the path and residence time of the cooling airflow.

[0049] As a preferred embodiment, the battery clusters 2 in each set of electrical cabinets 20 are symmetrically distributed on both sides of the air conditioner 6. Several air inlets 3 between adjacent sets of electrical cabinets 20 are preferably spaced apart along a first direction. As a preferred embodiment, the top of the cabin 1 is provided with a top cover 101, and air outlets 9 are located on both sides of the top cover 101 along a second direction. The air outlets 9 on both sides are preferably symmetrically arranged. The air outlets 9 on each side are preferably arranged at equal intervals along the first direction. This further enhances symmetry and improves the temperature uniformity of each battery cluster within the electrical cabinet.

[0050] As a preferred embodiment, both the air inlet 3 and the air outlet 9 are equipped with valves for adjusting their opening. These valves are preferably electric valves, with their control terminals connected to the control module, to further improve the control precision of natural ventilation.

[0051] As a preferred embodiment, a side air duct 5 is provided between two adjacent battery clusters 2, with several first air outlets 51 on each side. That is, two adjacent battery clusters 2 share a common cooling air duct on their opposite sides, improving the compactness of the layout.

[0052] As a preferred method, the distance between two adjacent sets of electrical cabinets 20 should not be less than 1.2m to ensure ventilation.

[0053] As a preferred embodiment, several second air outlets 12 are arranged at equal intervals. This further improves the uniformity of the layout and the distribution of cooling capacity.

[0054] As a preferred embodiment, the bottom of the cabin 1 is fixed to the mounting surface by support feet 4, forming a gap between the bottom of the cabin 1 and the mounting surface. It can be understood that the larger the gap size, that is, the higher the support feet 4, the larger the bottom inflow space, which is beneficial to reduce wind pressure and increase the wind speed of natural ventilation.

[0055] Preferably, the distance between the two sets of battery packs arranged along the first direction in each battery cluster 2 is sufficient to accommodate an infrared detector. The infrared detector is also connected to the control module.

[0056] The infrared detector can be used to detect abnormalities in the battery system's operating status in a timely manner, facilitating the implementation of corresponding safety measures to control risks.

[0057] As a preferred embodiment, a hydrogen detector 10 is installed at the top of the cabin 1, which is connected to the control module. Based on this, this embodiment has a hazardous gas control and detection function. When the hydrogen detector 10 detects that the hydrogen concentration in the cabin exceeds the alarm concentration (for example, setting the maximum hydrogen content in the air to not exceed 0.7%), the natural ventilation mode is activated.

[0058] This invention employs a temperature control solution combining natural ventilation and air conditioning, fully utilizing the low outdoor air temperature, reducing cabin energy consumption, and improving the cabin's microenvironment. Simultaneously, it effectively controls the concentration of harmful gases inside the cabin, reducing the risk of dangerous gas accumulation and enhancing battery system safety. Simple internal and external sensors can meet the temperature and humidity requirements of the battery compartment.

[0059] It will be understood by those skilled in the art that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A low-energy-consumption air-cooled energy storage battery compartment, comprising a compartment body (1), wherein the compartment body (1) is provided with multiple sets of electrical cabinets (20), each set of electrical cabinets (20) includes several battery clusters (2) arranged along a first direction, the multiple sets of electrical cabinets (20) are spaced apart along a second direction, the second direction being perpendicular to the first direction; each battery cluster (2) includes an installation cabinet, which is provided with a battery management module and one or two sets of battery packs arranged along the first direction; each set of battery packs includes several single cells (8) stacked along the height direction, characterized in that, The mounting cabinet of the battery cluster (2) is provided with side air ducts (5) on both sides along the first direction. The side air ducts (5) are provided with a plurality of first air outlets (51) for blowing air to cool the sides of the individual battery cells (8). The top of the mounting cabinet of the battery cluster (2) is provided with a plurality of second air outlets (12). An air conditioner (6) is provided in the middle of each group of cabinets (20), and its air outlet is connected to the inlet end of each side air duct (5) through an air supply pipe (61). The bottom of the cabin (1) is provided with a plurality of air inlets (3). The top is provided with several air outlets (9) and cooling fans (11); the several air inlets (3) are located between two adjacent sets of electrical cabinets (20) and between the inner wall of the cabin (1) and the adjacent electrical cabinets (20); it also includes a control module and a temperature and humidity sensor, the control module being electrically connected to the battery management module, the temperature and humidity sensor, the controller of the air conditioner (6) and the cooling fan (11); the temperature and humidity sensor includes sensors that detect the temperature and humidity of the cabin (1) and the external environment respectively.

2. The low-energy-consumption air-cooled energy storage battery compartment according to claim 1, characterized in that, The inlet end of the side air duct (5) is located at the bottom away from the second air outlet (12).

3. The low-energy-consumption air-cooled energy storage battery compartment according to claim 1, characterized in that, The battery clusters (2) in each electrical cabinet (20) are symmetrically distributed on both sides of the air conditioner (6).

4. The low-energy-consumption air-cooled energy storage battery compartment according to claim 1, characterized in that, A side air duct (5) is provided between two adjacent battery clusters (2), and a plurality of first air outlets (51) are provided on both sides of the duct.

5. The low-energy-consumption air-cooled energy storage battery compartment according to claim 1, characterized in that, The plurality of second air outlets (12) are arranged at equal intervals.

6. The low-energy-consumption air-cooled energy storage battery compartment according to claim 1, characterized in that, The bottom of the cabin (1) is fixed to the mounting surface by a support foot (4), and a gap is formed between the bottom of the cabin (1) and the mounting surface.

7. The low-energy-consumption air-cooled energy storage battery compartment according to claim 1, characterized in that, The top of the cabin (1) is provided with a top cover (101), and the air outlet (9) is located on both sides of the top cover (101) along the second direction.

8. The low-energy-consumption air-cooled energy storage battery compartment according to claim 1, characterized in that, Both the air inlet (3) and the air outlet (9) are equipped with valves for adjusting the opening degree.

9. The low-energy-consumption air-cooled energy storage battery compartment according to claim 1, characterized in that, The distance between the two sets of battery packs arranged along the first direction is sufficient to accommodate an infrared detector.

10. The low-energy-consumption air-cooled energy storage battery compartment according to any one of claims 1 to 9, characterized in that, A hydrogen detector (10) is installed on the top of the cabin (1), which is connected to the control module.

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