An energy storage system

Abstract

The utility model relates to energy storage equipment technical field, concretely relates to a kind of energy storage system.The energy storage system includes energy storage cabinet, energy storage converter and liquid cooling temperature regulating device, the energy storage cabinet includes first cabin and second cabin isolated from each other;The second cabin is provided with the energy storage converter and the liquid cooling temperature regulating device, and the baffle is arranged between the air outlet air duct of the energy storage converter and the liquid cooling temperature regulating device.The utility model can isolate the air outlet air duct of energy storage converter and liquid cooling temperature regulating device by setting baffle between the air outlet air duct of energy storage converter and liquid cooling temperature regulating device, so that the air outlet of the two can be effectively avoided mutual interference, and system heat exchange efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of energy storage equipment technology, and specifically to an energy storage system. Background Technology

[0002] Energy storage systems are widely used in the energy sector and are a key technology supporting the efficient utilization of renewable energy and improving grid stability. An energy storage system includes an energy storage cabinet and its components such as a power conversion system (PCS), a battery pack, and a liquid-cooled temperature control device.

[0003] Existing energy storage cabinets generally adopt an integrated cabin design, which integrates battery packs, inverters and heat dissipation equipment in the same space, resulting in cross-interference of hot airflow and affecting the heat exchange efficiency of the entire energy storage system. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an energy storage system that solves the technical problem of low heat exchange efficiency in existing energy storage systems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides an energy storage system, including an energy storage cabinet, an energy storage converter, and a liquid cooling temperature control device. The energy storage cabinet includes a first compartment and a second compartment that are isolated from each other.

[0007] The second compartment is equipped with the energy storage converter and the liquid cooling temperature control device, and a baffle is provided between the air outlet duct of the energy storage converter and the liquid cooling temperature control device.

[0008] In one possible implementation, the second compartment has an air inlet and an air outlet that are positioned opposite each other.

[0009] In one possible implementation, the energy storage converter includes a fan, which is configured corresponding to the air inlet.

[0010] In one possible implementation, the first compartment is a fully enclosed structure.

[0011] In one possible implementation, the first compartment is equipped with an energy storage battery, which includes a liquid cooling plate connected to the liquid cooling temperature control device.

[0012] In one possible implementation, the liquid-cooled temperature control device includes liquid-cooled piping, and the liquid-cooled plate is connected to the liquid-cooled temperature control device through the liquid-cooled piping.

[0013] In one possible implementation, the baffle is made of metal or flame-retardant plastic.

[0014] The beneficial effect of this utility model is that, compared with the prior art, by setting a baffle between the air outlet ducts of the energy storage converter and the liquid cooling temperature control device, the air outlet ducts of the energy storage converter and the liquid cooling temperature control device can be isolated, thereby effectively avoiding mutual interference between the air outlets of the two and improving the heat exchange efficiency of the system. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the energy storage system provided in an embodiment of this application.

[0016] Figure 2 Another structural schematic diagram of the energy storage system provided in the embodiments of this application.

[0017] Attached image labels:

[0018] 1. Energy storage cabinet; 11. First compartment; 12. Second compartment; 121. Air inlet; 122. Air outlet; 13. Baffle; 2. Energy storage converter; 3. Liquid cooling temperature control device; 31. Liquid cooling pipeline; 4. Energy storage battery. Detailed Implementation

[0019] To address the aforementioned technical problems, this utility model provides an energy storage system. The technical solution and embodiments of this utility model will now be described in detail with reference to the accompanying drawings. The present utility model is described in detail below through specific embodiments. These embodiments are exemplary and intended to explain the present utility model, and should not be construed as limiting the present utility model.

[0020] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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 application.

[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "joining" should be interpreted broadly, for example, they can refer to fixed connection, detachable connection, or integral connection; for those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0022] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0023] This utility model provides an energy storage system, including an energy storage cabinet 1, an energy storage converter 2, and a liquid-cooled temperature control device 3. The energy storage cabinet 1 includes a first compartment 11 and a second compartment 12 that are isolated from each other. The energy storage converter 2 and the liquid-cooled temperature control device 3 are installed in the second compartment 12, and a baffle 13 is installed between the air outlet duct of the energy storage converter 2 and the liquid-cooled temperature control device 3.

[0024] Specifically, the isolation arrangement of the first compartment 11 and the second compartment 12 separates different functional components, avoiding mutual interference and improving the overall stability and safety of the system. The heat, electromagnetic interference, and other factors generated by different components during operation do not affect each other; each operates within its own independent space, thus improving the system's reliability.

[0025] The baffle 13 effectively prevents the air outlets of the energy storage converter 2 and the liquid cooling temperature control device 3 from interfering with each other, making the airflow in their respective air ducts more stable, the heat exchange process smoother, improving the overall heat exchange efficiency of the system, and enhancing the temperature control performance of the system.

[0026] In summary, by installing a baffle 13 between the air outlet ducts of the energy storage converter 2 and the liquid cooling temperature control device 3, the air outlet ducts of the energy storage converter 2 and the liquid cooling temperature control device 3 can be isolated, thereby effectively avoiding mutual interference between the air outlets of the two devices and improving the system's heat exchange efficiency.

[0027] In one optional embodiment, the baffle 13 can automatically adjust its opening angle according to the working state and temperature requirements of the energy storage converter 2 and the liquid cooling temperature control device 3, so as to ensure that the energy storage converter 2 and the liquid cooling temperature control device 3 can obtain uniform and efficient cooling under different operating conditions, thereby maintaining the working temperature of the energy storage converter 2 and the liquid cooling temperature control device 3 within the optimal range, extending their service life and improving system efficiency.

[0028] Furthermore, temperature sensors and controllers can be installed inside the energy storage cabinet 1 to achieve real-time monitoring and intelligent adjustment of the entire system. When the temperature of the energy storage converter 2 or other critical components exceeds the set value, the system will automatically adjust the opening angle of the baffle 13, increase the circulation speed of the coolant, and even activate the backup cooling system to ensure stable system operation. This intelligent temperature management solution not only improves system reliability but also reduces energy consumption, aligning with the trend of green energy development.

[0029] In one embodiment, the first compartment 11 houses energy storage batteries 4, which exist in the form of PACKs, each PACK containing a liquid cooling plate. The liquid cooling plate, as a key component for heat conduction, has internal channels for coolant flow and absorbs heat through close contact with the energy storage device (such as a battery). The first compartment 11 is a fully enclosed structure, which significantly improves its waterproof and dustproof performance, resulting in a cleaner and safer internal environment. Because the energy storage batteries 4 are temperature-sensitive and valuable, a well-sealed environment helps increase the lifespan of the PACK. Simultaneously, the liquid cooling plates of the energy storage batteries 4 within the first compartment 11 are connected to a liquid cooling temperature control device 3 via liquid cooling pipes 31 to facilitate coolant circulation and heat exchange.

[0030] The second compartment 12 houses an energy storage converter 2, a liquid-cooled temperature control device 3, and a power distribution device. Because the PACK has a relatively high temperature tolerance, the second compartment 12 uses a direct ventilation mode for heat exchange. This mode helps reduce system costs and facilitates maintenance.

[0031] The energy storage converter 2 includes at least one fan, which is positioned corresponding to the air inlet 121. Under normal operating conditions, the ambient temperature is lower than the internal temperature of the energy storage converter 2. The fan draws ambient air into the energy storage converter 2 through the air inlet 121, and then exits through the air outlet 122. During this process, the air drawn in through the air inlet 121 absorbs heat from the energy storage converter 2, thereby cooling it. Furthermore, a baffle 13 is installed between the energy storage converter 2 and the outlet air duct of the liquid-cooled temperature control device 3. This baffle 13 effectively isolates the outlet air ducts of the two devices, preventing mutual interference between their airflows and thus improving the system's heat exchange efficiency.

[0032] The liquid-cooled temperature control device 3 includes liquid-cooled piping 31, coolant, and other auxiliary components (such as a liquid-cooled pump, condenser, evaporator, etc., depending on the specific configuration of the energy storage system). The liquid-cooled piping 31 is equipped with temperature sensors, valves, and other components for coolant circulation and temperature monitoring. Commonly used coolants include ethylene glycol aqueous solutions, which have high thermal conductivity and can effectively remove heat generated by the energy storage device. A heater can be installed in the liquid-cooled temperature control device 3 to regulate the coolant temperature and ensure it circulates within a suitable range. The inlet and outlet of the energy storage battery 4PACK are connected to the liquid-cooled temperature control device 3 via the liquid-cooled piping 31, enabling coolant circulation between the energy storage battery 4 and the liquid-cooled temperature control device 3, thereby regulating the temperature of the energy storage battery 4.

[0033] In another embodiment, the energy storage cabinet 1 has an air inlet 121 on the front and an air outlet 122 on the opposite side.

[0034] This configuration creates a good air circulation channel, which helps to dissipate heat from the second compartment 12, maintain a stable temperature inside the compartment, and provide a suitable working environment for the energy storage battery 4.

[0035] Optionally, the energy storage converter 2 includes a fan, which is correspondingly positioned with the air inlet 121. Since the PACK has a relatively high temperature tolerance, the second compartment 12 uses a direct ventilation mode for heat exchange, which helps reduce system costs and facilitates maintenance. That is, the energy storage cabinet has an air inlet 121 on the front and air outlets on the opposite side.

[0036] Optionally, the first compartment 11 is a fully enclosed structure. The fully enclosed structure can not only effectively prevent external moisture and dust from entering, avoiding the energy storage battery 4 from being affected by moisture or dust accumulation, but also provide a stable and clean environment for the energy storage battery 4, reducing battery aging and failure caused by harsh external environments, and extending the service life of the PACK.

[0037] Optionally, an energy storage battery 4 is installed in the first compartment 11. The energy storage battery 4 includes a liquid cooling plate, which is connected to a liquid cooling temperature control device 3. Specifically, the liquid cooling temperature control device 3 includes a liquid cooling pipeline 31, through which the liquid cooling plate is connected. The liquid cooling pipeline 31 is equipped with temperature sensors, valves, and other components for coolant circulation and temperature monitoring. Commonly used coolants include ethylene glycol aqueous solutions, which have high thermal conductivity and can effectively remove the heat generated by the energy storage device, thus keeping the operating temperature of the energy storage battery 4 within a normal range.

[0038] Optionally, the baffle 13 is made of metal or flame-retardant plastic. The outlet air temperature of the energy storage converter 2 and the liquid-cooled temperature control device 3 is relatively high. The baffle 13 made of metal or flame-retardant plastic can avoid problems such as high-temperature deformation, so as to maintain a good sealing and isolation effect between the outlet air duct of the energy storage converter 2 and the liquid-cooled temperature control device 3.

[0039] The above description is merely a preferred embodiment of the present utility model, and the specific embodiments described above are not intended to limit the present utility model. Various modifications and variations can be made within the scope of the technical concept of the present utility model. All refinements, modifications, or equivalent substitutions made by those skilled in the art based on the above description are within the scope of protection of the present utility model.

Claims

1. An energy storage system, comprising an energy storage cabinet, an energy storage converter, and a liquid-cooled temperature control device, characterized in that, The energy storage cabinet includes a first compartment and a second compartment that are isolated from each other. The second compartment is equipped with the energy storage converter and the liquid cooling temperature control device, and a baffle is provided between the air outlet duct of the energy storage converter and the liquid cooling temperature control device. The second compartment has an air inlet and an air outlet that are arranged opposite to each other. The energy storage converter includes a fan, and the fan is arranged corresponding to the air inlet. The first compartment is a fully enclosed structure. An energy storage battery is installed in the first compartment. The energy storage battery includes a liquid cooling plate. The liquid cooling temperature control device includes liquid cooling pipes. The liquid cooling plate is connected to the liquid cooling temperature control device through the liquid cooling pipes. The baffle is made of metal or flame-retardant plastic.

Images