Energy storage cabinet

Abstract

The utility model relates to the technical field of energy storage systems, in particular to an energy storage cabinet, which comprises a cabinet body, a partition plate is arranged in the cabinet body and divides the internal space into a battery compartment and an equipment compartment, two opposite sides of the battery compartment are respectively connected with a first battery compartment door plate and a second battery compartment door plate, and the first battery compartment door plate is provided with a heat exchange device. A heat exchange wind scooper and an air inlet are respectively arranged at two vertical ends of the heat exchange device, and an air duct unit for guiding airflow at the heat exchange wind scooper to one side of the second door plate of the battery cabin is arranged in the cabinet body. The battery compartment and the equipment compartment are separated and are mutually independent, so that air flow in the battery compartment enters the heat exchange device through the air inlet for heat exchange, then is guided to one side of the second door plate of the battery compartment through the heat exchange wind scooper and the air duct unit, is circulated through the battery compartment and then returns to the air inlet to complete heat exchange circulation of an internal area; the problem that the heat dissipation effect in the energy storage cabinet is not obvious can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage systems, in particular to an energy storage cabinet. Background Art

[0002] As the basic unit of the energy storage system, the energy storage cabinet will generate a large amount of heat during the charging and discharging process every day. In order to ensure the safe and efficient operation of the battery, the generated heat needs to be discharged in time to ensure that the temperature inside the energy storage cabinet is maintained in an optimal range. In the prior art, the electrical equipment and battery modules in the energy storage cabinet are arranged in the same area inside the cabinet without physical isolation, and the amount of heat transfer between them is large. Especially when the heat load is high (such as at noon in summer), there will be problems such as excessive temperature difference in the cabinet and excessively high local battery temperature. Conventional air ducts (or no air ducts) will also cause excessive cold air loss and excessive internal temperature, and the delivery of cold / hot air is insufficient, resulting in the defect of unclear heat dissipation effect. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides an energy storage cabinet, in which the battery compartment and the equipment compartment are separated and independent of each other. At the same time, for the heat generated by the battery module in the battery compartment, a heat exchange device is used to direct the cold air to the other side of the battery compartment, and then returns to the heat exchange device after heat exchange with the battery module placed in the battery compartment, which can effectively improve the problem of unclear heat dissipation effect in the energy storage cabinet.

[0004] The energy storage cabinet in the present scheme includes a cabinet body, and a partition is arranged in the cabinet body to divide the internal space into a battery compartment and an equipment compartment, and the first door panel of the battery compartment and the second door panel of the battery compartment are respectively connected to the opposite sides of the battery compartment, and the first door panel of the battery compartment is installed with a heat exchange device, and the heat exchange device is respectively provided with a heat exchange air guide hood and an air inlet at both ends in the vertical direction, and an air duct unit is arranged in the cabinet body to guide the airflow at the heat exchange air guide hood to the side of the second door panel of the battery compartment, so that the airflow enters the heat exchange device through the air inlet, and is guided by the heat exchange air guide hood and the air duct unit to the side of the second door panel of the battery compartment after heat exchange, and returns to the air inlet after circulation through the battery compartment to complete the heat exchange cycle of the internal area. This solution separates the battery compartment and the equipment compartment, and the two compartments are independent of each other. At the same time, for the heat generated by the battery modules in the battery compartment, the heat exchange device is used to guide the cold air to the other side of the battery compartment, and then returns to the heat exchange device after heat exchange with the battery modules placed in the battery compartment. This can effectively improve the problem of unclear heat dissipation effect in the energy storage cabinet. At the same time, when the interior of the energy storage cabinet needs to be heated and kept warm, the heating mode of the heat exchange device is turned on, and the airflow circulation method is the same as the aforementioned cooling mode.

[0005] The technical solution further defined in the utility model is:

[0006] Furthermore, the air duct unit is arranged at the inner top of the cabinet, and the cold / hot air flows through the top of the cabinet to the other side of the battery compartment, and then flows back to the heat exchange device through the space inside the compartment.

[0007] Further, the heat exchange device includes at least one of a heat exchanger and an air conditioner.

[0008] Further, the air duct unit includes a top air guide cover, a middle air duct, and a branch air duct connected in sequence. One end of the top air guide cover away from the middle air duct is communicated with the heat exchange air guide cover, and the air outlet side of the branch air duct is inclined downward toward one side of the second door panel of the battery compartment.

[0009] Further, a plurality of layers of battery mounting racks are installed on the inner wall of the battery compartment in the vertical direction, and there is a gap for air flow between adjacent battery mounting racks.

[0010] Further, the adjacent battery mounting racks are arranged at equal intervals.

[0011] Further, both opposite sides of the equipment compartment are connected with equipment compartment door panels, and ventilation windows are opened on the equipment compartment door panels to realize independent heat dissipation of the equipment compartment.

[0012] Further, the two ventilation windows are arranged at the same height.

[0013] Further, at least one of the ventilation windows is equipped with a fan to accelerate the air flow in the equipment compartment and improve the heat dissipation effect.

[0014] Further, dust-proof cotton is provided on the ventilation window.

[0015] Further, lifting lugs are provided on the top of the cabinet body.

[0016] The beneficial effects of the present utility model are as follows:

[0017] For the energy storage cabinet provided by the present utility model, the battery compartment and the equipment compartment are separated and independent from each other. At the same time, for the heat generated by the battery modules in the battery compartment, the heat exchange device is used to direct the cold air to the other side of the battery compartment. After heat exchange with the battery modules placed in the battery compartment, it returns to the heat exchange device, which can effectively improve the problem of obvious heat dissipation in the energy storage cabinet. At the same time, when the heating mode of the heat exchange device is started, it can also heat and keep warm each battery module, and its air flow circulation mode is the same as that in the refrigeration state;

[0018] Due to the gaps between the battery modules in the energy storage cabinet of the present utility model, the cold air flow can fully cover each battery module and be quickly sucked into the battery module for heat dissipation, so that the battery module can be cooled in time, thereby playing a role in cooling the energy storage cabinet;

[0019] The equipment compartment of the energy storage cabinet provided by the present utility model has a separate ventilation device, and ventilation windows are opened on the front and rear door panels. Cooperating with the fan, the heat in the compartment is discharged outside the cabinet to play a role in heat dissipation. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of the energy storage cabinet in the embodiment of the present utility model;

[0021] Figure 2 It is a schematic structural diagram (front side) of the energy storage cabinet in the open state in the embodiment of the present utility model;

[0022] Figure 3 It is a schematic structural diagram (rear side) of the energy storage cabinet in the open state in the embodiment of the present utility model;

[0023] Figure 4 It is a schematic diagram of the heat dissipation effect of the battery compartment of the energy storage cabinet in the embodiment of the present utility model;

[0024] Figure 5 It is a schematic diagram of the heat dissipation effect of the equipment compartment of the energy storage cabinet in the embodiment of the present utility model;

[0025] Wherein: 10, base; 20, side plate; 30, top plate;

[0026] 100, battery compartment; 101, first battery compartment door panel; 102, second battery compartment door panel; 103, heat exchange air guide cover; 104, air inlet; 105, top air guide cover; 106, middle air duct; 107, branch air duct; 108, decorative cover;

[0027] 200, equipment compartment; 201, equipment compartment door panel; 202, ventilation window; 203, fan;

[0028] 300, partition board. Detailed implementation manner

[0029] An energy storage cabinet provided in this embodiment, as Figure 2 shown, includes a cabinet body. A partition board 300 is vertically arranged inside the cabinet body to divide the internal space into a battery compartment 100 and an equipment compartment 200. The two opposite sides (i.e., the front and rear sides) of the battery compartment 100 are respectively connected with a first battery compartment door panel 101 and a second battery compartment door panel 102 through hinges. Specifically, a heat exchange device is installed on the first battery compartment door panel 101, and a heat exchange air guide cover 103 and an air inlet 104 are respectively arranged at the upper and lower ends of the heat exchange device. The heat exchange air guide cover 103 is used for the air outlet of the heat exchange device, and the air inlet 104 is used for the air inlet of the heat exchange device. At the same time, an air duct unit is arranged inside the cabinet body to guide the air flow at the heat exchange air guide cover 103 to the side of the second battery compartment door panel 102, so that the air flow enters the heat exchange device from the air inlet 104, exchanges heat and then is guided to the side of the second battery compartment door panel 102 by the heat exchange air guide cover 103 and the air duct unit, circulates through the internal area of the battery compartment 100 and then returns to the air inlet 104 to complete the heat exchange cycle of the internal area of the battery compartment 100.

[0030] See Figure 3, in this embodiment, the air duct unit is arranged at the inner top of the cabinet body, and specifically includes a top air guide cover 105, a middle air duct 106, and a branch air duct 107 that are connected in sequence. One end of the top air guide cover 105 away from the middle air duct 106 is butted and communicated with the heat exchange air guide cover 103 when the first battery compartment door panel 101 is closed, and the air outlet side of the branch air duct 107 is inclined downward toward the side of the second battery compartment door panel 102. The inner wall of the battery compartment 100 is provided with multiple layers of battery mounting racks at equal intervals in the vertical direction, and there are gaps for air flow between adjacent battery mounting racks. The battery mounting racks are used to horizontally place battery modules, so that there are gaps between the upper and lower battery modules. The cold / hot air flow of the heat exchange device sequentially passes through the heat exchange air guide cover 103, the top air guide cover 105, the middle air duct 106, and the branch air duct 107.

[0031] It should be noted that the air duct unit of this embodiment is arranged at the inner top of the cabinet body. In some other embodiments, the air duct unit can be arranged at other positions of the cabinet body, as long as the air outlet end of the air duct unit faces the side of the second battery compartment door panel 102. For example, the air duct unit can also be horizontally arranged in the middle or bottom of the cabinet body. However, due to the greater cooling requirements of the energy storage cabinet, arranging the air duct unit at the inner top of the cabinet body is more conducive to the downward flow of cold air and facilitating the diffusion throughout the battery compartment 100.

[0032] It can be understood that Figure 4 is a cross-sectional view of the battery compartment 100. The heat exchange air guide cover 103 of the heat exchange device is butted with the top air guide cover 105, and the air flow passes through the middle air duct 106 above and then inclines downward through the branch air duct 107, so that the cold / hot air flow of the heat exchange device is transported from above the inside of the cabinet body to the rear side of the cabinet body. The cold / hot air flow passes through the gaps between the multiple layers of battery mounting racks, exchanges heat with the battery modules on the battery mounting racks, and then returns to the air inlet 104 of the heat exchange device. The heat exchange air guide cover 103 serves as the air outlet, and the air inlet 104 serves as the air return port, improving the heat exchange efficiency of the battery compartment 100 inside the cabinet, especially the heat dissipation of each battery module in the cabin in the refrigeration mode of the heat exchange device.

[0033] See Figure 1 , Figure 3 and Figure 4 , in this embodiment, equipment cabin door panels 201 are hingedly installed on the front and rear sides of the equipment cabin 200, and ventilation windows 202 are opened in the middle of both equipment cabin door panels 201. Among them, a fan 203 is installed on the front ventilation window 202. The equipment cabin 200, as an independent space inside the cabinet from the battery compartment 100, realizes the heat dissipation of internal equipment through the fan 203 and the ventilation window 202. In some other embodiments, filtering components such as dust-proof cotton or dust-filtering nets can be installed on the ventilation window 202 to minimize the entry of external dust into the equipment cabin 200.

[0034] In this embodiment, Figure 1It is a schematic diagram of the external structure of the energy storage cabinet, mainly composed of a base 10, side plates 20, a top plate 30, a battery compartment door panel and an equipment compartment door panel 201 connected to form the main frame of the cabinet body, all of which can be made of heat-insulating materials with low thermal conductivity, greatly reducing heat transfer. Lifting lugs are installed above the cabinet body. At the same time, a decorative cover 108 is installed outside the first battery compartment door panel 101 to wrap the heat exchange device installed here.

[0035] In this embodiment, the heat exchange device specifically refers to a device with heat exchange function, such as a heat exchanger or an air conditioner. For a large energy storage cabinet, it is more suitable to use an industrial air conditioner with a larger power.

[0036] In addition to the above embodiments, the present utility model can also have other implementation manners; all technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope required by the present utility model.

Claims

1. An energy storage cabinet, characterized in that, It includes a cabinet body. Inside the cabinet body, there is a partition board (300) that divides the internal space into a battery compartment (100) and an equipment compartment (200). On the opposite sides of the battery compartment (100), a first battery compartment door panel (101) and a second battery compartment door panel (102) are respectively connected. The first battery compartment door panel (101) is equipped with a heat exchange device, and heat exchange air guiding covers (103) and air inlets (104) are respectively arranged at the vertical two ends of the heat exchange device. A duct unit is arranged inside the cabinet body to guide the air flow at the heat exchange air guiding cover (103) to the side of the second battery compartment door panel (102), so that the air flow enters the heat exchange device through the air inlet (104) for heat exchange, and then is guided to the side of the second battery compartment door panel (102) by the heat exchange air guiding cover (103) and the duct unit, and returns to the air inlet (104) after circulating through the battery compartment (100) to complete the heat exchange cycle of the internal area.

2. The energy storage cabinet according to claim 1, wherein, The duct unit is arranged at the inner top of the cabinet body.

3. The energy storage cabinet according to claim 1, characterized in that, The heat exchange device includes at least one of a heat exchanger and an air conditioner.

4. The energy storage cabinet according to claim 2, wherein The duct unit includes a top air guiding cover (105), an intermediate duct (106), and a branch duct (107) that are connected in sequence. One end of the top air guiding cover (105) far from the intermediate duct (106) is communicated with the heat exchange air guiding cover (103), and the air outlet side of the branch duct (107) is inclined downward towards the side of the second battery compartment door panel (102).

5. The energy storage cabinet according to claim 1, wherein, On the inner wall of the battery compartment (100), multiple layers of battery mounting racks are installed in the vertical direction, and there are gaps for air flow between adjacent battery mounting racks.

6. The energy storage cabinet according to claim 5, wherein The adjacent battery mounting racks are arranged at equal distances.

7. The energy storage cabinet according to claim 1, characterized in that, On the opposite sides of the equipment compartment (200), equipment compartment door panels (201) are respectively connected, and ventilation windows (202) are opened on the equipment compartment door panels (201).

8. The energy storage cabinet according to claim 7, wherein, The two ventilation windows (202) are arranged at the same height.

9. The energy storage cabinet according to claim 7, wherein, At least one ventilation window (202) is equipped with a fan (203).

10. The energy storage cabinet according to claim 1, wherein Lifting lugs are arranged at the top of the cabinet body.

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