Air-cooled energy storage cabinet with dual air conditioning units

Abstract

This utility model relates to the field of thermal management technology for energy storage cabinets, specifically disclosing an air-cooled energy storage cabinet with dual air conditioning units. The cabinet includes a cabinet body, a first air conditioning unit, and a second air conditioning unit. Both the first and second air conditioning units have air outlets and return air inlets. The cabinet body has an internal cavity containing devices to be cooled and an air duct. The two ends of the air duct are connected to the air outlets of the first and second air conditioning units, respectively. The return air inlets of both units are connected to the cavity. Valve bodies are provided at both ends of the air duct, and the air duct also has openings facing the devices to be cooled. This utility model can prevent the entire energy storage cabinet from shutting down due to the failure of a single air conditioning unit, ensuring the long-term stable operation of the energy storage cabinet.

Description

Technical Field

[0001] This utility model relates to the field of thermal management technology for energy storage cabinets, and in particular to an air-cooled energy storage cabinet with dual air conditioning devices. Background Technology

[0002] As the global energy structure shifts towards renewable energy sources (such as photovoltaics and wind power), energy storage systems are playing an increasingly prominent role in grid peak shaving, valley filling, and emergency backup power. As a core component, the thermal management technology of energy storage cabinets directly impacts system efficiency, lifespan, and safety.

[0003] Currently, mainstream energy storage cabinets are divided into air-cooled and liquid-cooled types. Compared with liquid cooling, air-cooled systems have a simpler structure, are easier to maintain, and have lower initial investment, making them suitable for small and medium-sized energy storage scenarios (such as industrial and commercial energy storage, distributed photovoltaic energy storage). Existing air-cooled energy storage cabinets use a single air conditioning unit to blow cold air into the cabinet. If a single air conditioning unit fails, the entire energy storage cabinet needs to be shut down, resulting in economic losses. Utility Model Content

[0004] This utility model provides an air-cooled energy storage cabinet with dual air conditioning units, which can avoid the situation where the entire energy storage cabinet will shut down due to the failure of a single air conditioning unit, and ensure the long-term stable operation of the energy storage cabinet.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] This utility model provides an air-cooled energy storage cabinet with dual air conditioning units, including a cabinet body, a first air conditioning unit and a second air conditioning unit. Both the first and second air conditioning units have air outlets and air return outlets. The cabinet body has an internal accommodating cavity, in which a device to be cooled and an air duct are arranged. The two ends of the air duct are respectively connected to the air outlets of the first and second air conditioning units, and the air return outlets of the first and second air conditioning units are both connected to the accommodating cavity. Both ends of the air duct are provided with valve bodies, and the air duct also has an opening facing the device to be cooled.

[0007] In some embodiments, the valve body is a one-way valve, the one-way valve near the first air conditioning unit is configured to unidirectionally flow from the air outlet of the first air conditioning unit to the air duct, and the one-way valve near the second air conditioning unit is configured to unidirectionally flow from the air outlet of the second air conditioning unit to the air duct.

[0008] In some embodiments, the one-way valve includes a valve frame fixed in the air duct and a plurality of baffles. The valve frame is vertically arranged and has an overflow opening that connects to the air duct. The top of the baffle is rotatably connected to the valve frame, and the bottom of the baffle can abut against the side of the valve frame away from the air conditioning unit. When the bottom of the baffle abuts against the side of the valve frame away from the air conditioning unit, the baffle covers the overflow opening.

[0009] In some embodiments, the opening is located in the duct between the two one-way valves.

[0010] In some embodiments, the opening is provided with a flow regulation structure that can adjust the airflow.

[0011] In some embodiments, the flow regulation structure includes an outer frame that is connected to the opening and a plurality of grid plates that are detachably fixed to the outer frame. The grid plates are distributed along the width direction of the outer frame, and a grid channel for airflow is formed between two adjacent grid plates.

[0012] In some embodiments, the air duct is disposed above the device to be cooled, and the opening is located at the bottom of the air duct.

[0013] In some embodiments, the outer surface of the air duct is wrapped with thermal insulation cotton.

[0014] In some embodiments, a sealing structure is provided between the air duct and the first air conditioning unit, and between the air duct and the second air conditioning unit.

[0015] In some embodiments, the cabinet is provided with cabinet doors that can be opened or closed.

[0016] This utility model has at least the following beneficial effects: an air conditioning device is provided at each end of the air duct. When one of the air conditioning devices fails to work due to a malfunction or other reasons, the valve body near the air conditioning device can be closed, the other air conditioning device can be activated and the valve body near the other air conditioning device can be opened, and the other air conditioning device can continue to send cold air to the air duct. This can avoid the situation where the entire energy storage cabinet stops due to the failure of a single air conditioning device, and ensure the long-term stable operation of the energy storage cabinet. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an air-cooled energy storage cabinet with dual air conditioning devices according to an embodiment of the present invention;

[0018] Figure 2 for Figure 1 The diagram shown is a structural schematic of an air-cooled energy storage cabinet with dual air conditioning units after removing the cabinet door and front panel.

[0019] Figure 3 for Figure 1 A cross-sectional schematic diagram of an air-cooled energy storage cabinet with dual air conditioning units is shown.

[0020] Figure 4 This is a schematic diagram of the structure of a one-way valve according to an embodiment of the present invention;

[0021] Figure 5This is a schematic diagram of the flow regulation structure according to an embodiment of the present invention.

[0022] The attached figures are labeled as follows:

[0023] Cabinet body 100, accommodating cavity 110, support frame 120, cabinet door 130;

[0024] Air outlet 201, return air outlet 202, first air conditioning unit 210, second air conditioning unit 220

[0025] Air duct 300, opening 310, valve body 320, valve frame 321, baffle 322, flow regulation structure 330, outer frame 331, grille 332, grille channel 333. Detailed Implementation

[0026] This invention provides the following description with reference to the accompanying drawings to aid in a comprehensive understanding of the various embodiments of the invention as defined by the claims and their equivalents. The description includes various specific details to aid understanding, but these details should be considered exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the invention.

[0027] In the description of this utility model, the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] It should be understood that when one element (e.g., the first element) is “connected” to another element (e.g., the second element), the element may be directly connected to the other element, or there may be an intervening element (e.g., the third element) between the element and the other element.

[0029] An embodiment of this utility model provides an air-cooled energy storage cabinet with dual air conditioning units, such as... Figure 1-3 As shown, the system includes a cabinet 100, a first air conditioning unit 210, and a second air conditioning unit 220. Both the first air conditioning unit 210 and the second air conditioning unit 220 have an air outlet 201 and a return air outlet 202. The return air outlet 202 draws in air, and the air outlet 201 blows out cold air that can be used for cooling. The first air conditioning unit 210 and the second air conditioning unit 220 can be indoor air conditioning units, integrated air conditioning units, or other air conditioning devices that can perform cooling.

[0030] The cabinet 100 has an internal accommodating cavity 110, which houses components to be cooled and an air duct 300. The components to be cooled are those within the energy storage cabinet that require cooling, including but not limited to batteries, electrical components, and heat dissipation components. The air duct 300 can be enclosed by a panel to form a passageway. The panel can be integrally formed with the side wall of the cabinet 100, or the panel can be fixed to the side wall of the cabinet 100. The air duct 300 can be elongated to facilitate long-distance transport of cold air. The two ends of the air duct 300 are connected to the air outlet 201 of the first air conditioning unit 210 and the air outlet 201 of the second air conditioning unit 220, respectively. The return air inlets 202 of the first and second air conditioning units 210 are both connected to the accommodating cavity 110. The first and second air conditioning units 210 and 220 draw in air from the accommodating cavity 110 and then blow the cold air into the air duct 300, thus circulating and cooling the accommodating cavity 110 and improving the cooling effect. Valve bodies 320 are provided at both ends of the air duct 300, which can control the opening or closing of the air duct 300. The air duct 300 also has an opening 310 facing the device to be cooled. The cold air blown into the air duct 300 can be blown onto the device to be cooled through the opening 310, thereby cooling the device.

[0031] In this embodiment, the air-cooled energy storage cabinet with dual air conditioning units operates by activating only one of the first air conditioning unit 210 and the second air conditioning unit 220. For example, only the first air conditioning unit 210 is working, while the second air conditioning unit 220 is not working. The valve body 320 near the first air conditioning unit 210 is open, and the valve body 320 near the second air conditioning unit 220 is closed. Cold air enters the air duct 300 and then blows towards the device to be cooled through the opening 310. Since the valve body 320 near the second air conditioning unit 220 is closed, the cold air will not blow towards the air outlet 201 of the second air conditioning unit 220. When the first air conditioning unit 210 fails to work due to malfunction or other reasons, the valve body 320 near the first air conditioning unit 210 can be closed, the second air conditioning unit 220 can be activated, and the valve body 320 near the second air conditioning unit 220 can be opened. The second air conditioning unit 220 will then continue to send cold air to the air duct 300. The cold air will still blow onto the device to be cooled through the opening 310 to cool the device. The entire energy storage cabinet does not need to be shut down, which can avoid the situation where the entire energy storage cabinet will shut down due to the failure of a single air conditioning unit, ensure the long-term stable operation of the energy storage cabinet, and reduce economic losses.

[0032] In some embodiments, valve body 320 is a one-way valve. The one-way valve near the first air conditioning unit 210 is configured to unidirectionally flow from the air outlet 201 of the first air conditioning unit 210 to the air duct 300, and the one-way valve near the second air conditioning unit 220 is configured to unidirectionally flow from the air outlet 201 of the second air conditioning unit 220 to the air duct 300. When the first air conditioning unit 210 is working and the second air conditioning unit 220 is not working, the air blown from the air outlet 201 of the first air conditioning unit 210 can open the one-way valve near it, and the airflow normally blows into the air duct 300. However, the one-way valve near the second air conditioning unit 220 is not open, and the airflow will not blow towards the air outlet 201 of the second air conditioning unit 220. Similarly, when the second air conditioning unit 220 is working and the first air conditioning unit 210 is not working, the air blown out of the air outlet 201 of the second air conditioning unit 220 can open the one-way valve near it, and the airflow normally blows into the air duct 300. However, the one-way valve near the first air conditioning unit 210 is not open, and the airflow will not blow towards the air outlet 201 of the first air conditioning unit 210.

[0033] Therefore, this embodiment can automatically control the airflow direction through a one-way valve, without the need to manually switch the on / off state of the valve body 320, making it more intelligent.

[0034] Furthermore, such as Figure 3 and Figure 4 As shown, the one-way valve includes a valve frame 321 fixed in the air duct 300 and multiple baffles 322. The valve frame 321 is vertically arranged and has an overflow opening that connects to the air duct 300, through which airflow passes. The top of the baffle 322 is rotatably connected to the valve frame 321, and the bottom of the baffle 322 can abut against the side of the valve frame 321 away from the air conditioning unit. Specifically, the bottom of the baffle 322 near the first air conditioning unit 210 can abut against the side of the valve frame 321 away from the first air conditioning unit 210, and the bottom of the baffle 322 near the second air conditioning unit 220 can abut against the side of the valve frame 321 away from the second air conditioning unit 220.

[0035] When the bottom of the baffle 322 abuts against the side of the valve frame 321 away from the air conditioning unit, the baffle 322 covers the flow opening, which is equivalent to closing the one-way valve and restricting airflow through the flow opening. When the air outlet 201 of the air conditioning unit blows air, the airflow impacts the baffle 322, causing the bottom of the baffle 322 to rotate away from the valve frame 321, which is equivalent to opening the one-way valve and allowing airflow to pass through the flow opening.

[0036] In this embodiment, the top of the baffle 322 can be rotatably connected to the valve frame 321 via a hinge or other structure.

[0037] In some embodiments, such as Figure 3As shown, opening 310 is located on the air duct 300 between the two one-way valves. This ensures that when either air conditioning unit stops working, the cool air blown by the other normally operating air conditioning unit can be blown onto the device to be cooled through opening 310.

[0038] Multiple sets of devices to be cooled can be set, and correspondingly, multiple sets of openings 310 can also be set.

[0039] In some embodiments, such as Figure 3 and Figure 5 As shown, an adjustable airflow regulating structure 330 is provided at the opening 310, which can adjust the airflow of the opening 310, thereby adjusting the cooling effect on the device to be cooled facing the opening 310, and controlling the operating temperature of the device to be cooled after cooling.

[0040] When there are multiple sets of openings 310, the flow rate ratio for different devices to be cooled can be adjusted through the flow rate adjustment structure 330 to achieve a uniform cooling effect.

[0041] Furthermore, the flow regulation structure 330 includes an outer frame 331 that interfaces with the opening 310, and multiple grille plates 332 detachably fixed to the outer frame 331. The airflow blowing out of the opening 310 flows from the inside of the outer frame 331. The grille plates 332 are distributed along the width direction of the outer frame 331, and a grille channel 333 for airflow is formed between two adjacent grille plates 332. Therefore, by configuring different numbers or widths of grille plates 332, the width of the grille channel 333 can be changed. The larger the width of the grille channel 333, the greater the flow rate of the cold air, and vice versa.

[0042] In this embodiment, the grille plate 332 can be detachably fixed to the outer frame 331 by means of screws, clips or other structures.

[0043] In some embodiments, such as Figure 3 As shown, the air duct 300 is positioned above the device to be cooled, and the opening 310 is located at the bottom of the air duct 300. This design avoids the air duct 300 occupying too much space in the receiving cavity 110, allowing the receiving cavity 110 to accommodate more working devices. At the same time, the opening 310 blows air downwards, which results in a better cooling effect.

[0044] In some embodiments, such as Figure 3 As shown, the outer surface of the air duct 300 is wrapped with insulation cotton to prevent the cold air from heating up too quickly during the transportation process.

[0045] In some embodiments, such as Figure 3As shown, sealing structures are provided between the air duct 300 and the first air conditioning unit 210, and between the air duct 300 and the second air conditioning unit 220, to improve sealing performance and reduce cold air leakage. The sealing structure can specifically be a sealing ring, foam, or other sealing structure.

[0046] In some embodiments, such as Figure 3 As shown, a bracket 120 is fixed inside the accommodating cavity 110. The device to be cooled is placed on the bracket 120 and is stably supported by the bracket 120.

[0047] In some embodiments, such as Figure 1 As shown, the cabinet 100 is equipped with a cabinet door 130 that can be opened or closed. After opening the cabinet door 130, the components inside the accommodating cavity 110 can be inspected or removed.

[0048] The terms and words used in the foregoing description and claims are not limited to their literal meaning, but are merely used by the applicant to enable a clear and consistent understanding of the present invention. Therefore, those skilled in the art should understand that the foregoing description of various embodiments of the present invention is for illustrative purposes only, and not intended to limit the present invention as defined by the appended claims and their equivalents.

Claims

1. A wind-cooled energy storage cabinet with dual air conditioning units, characterized in that: The device includes a cabinet, a first air conditioning unit, and a second air conditioning unit, both of which have air outlets and return air inlets. The cabinet has an internal accommodating cavity containing a device to be cooled and an air duct. The two ends of the air duct are connected to the air outlets of the first and second air conditioning units, respectively, and the return air inlets of both units are connected to the accommodating cavity. Each end of the air duct has a valve body, and the air duct also has an opening facing the device to be cooled.

2. The air-cooled energy storage cabinet with dual air conditioning units according to claim 1, characterized in that: The valve body is a one-way valve. The one-way valve near the first air conditioning unit is configured to allow one-way flow from the air outlet of the first air conditioning unit to the air duct, and the one-way valve near the second air conditioning unit is configured to allow one-way flow from the air outlet of the second air conditioning unit to the air duct.

3. The air-cooled energy storage cabinet with dual air conditioning units according to claim 2, characterized in that: The one-way valve includes a valve frame fixed in the air duct and multiple baffles. The valve frame is vertically arranged and has an overflow opening that connects to the air duct. The top of the baffle is rotatably connected to the valve frame, and the bottom can abut against the side of the valve frame away from the air conditioning unit. When the bottom of the baffle abuts against the side of the valve frame away from the air conditioning unit, the baffle covers the overflow opening.

4. The air-cooled energy storage cabinet with dual air conditioning units according to claim 2, characterized in that: The opening is located in the duct between the two one-way valves.

5. The air-cooled energy storage cabinet with dual air conditioning units according to claim 1, characterized in that: The opening is equipped with a flow regulation structure that allows for adjustable airflow.

6. The air-cooled energy storage cabinet with dual air conditioning units according to claim 5, characterized in that: The flow regulation structure includes an outer frame that connects to the opening and multiple grid plates that are detachably fixed to the outer frame. The grid plates are distributed along the width direction of the outer frame, and a grid channel for airflow is formed between two adjacent grid plates.

7. The air-cooled energy storage cabinet with dual air conditioning units according to any one of claims 1-6, characterized in that: The air duct is positioned above the device to be cooled, and the opening is located at the bottom of the air duct.

8. The air-cooled energy storage cabinet with dual air conditioning units according to any one of claims 1-6, characterized in that: The outer surface of the air duct is wrapped with thermal insulation cotton.

9. The air-cooled energy storage cabinet with dual air conditioning units according to any one of claims 1-6, characterized in that: A sealing structure is provided between the air duct and the first air conditioning unit, as well as between the air duct and the second air conditioning unit.

10. The air-cooled energy storage cabinet with dual air conditioning units according to any one of claims 1-6, characterized in that: The cabinet is equipped with doors that can be opened or closed.

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