Energy storage cabinet and energy storage system

Abstract

The utility model discloses an energy storage cabinet, which comprises an air inlet, an air outlet and a dehumidification module arranged on an airflow path of the air inlet and the air outlet, and the air outlet is provided with a first fan of which the air exhaust direction faces the outside of the energy storage cabinet; the first sensor is used for detecting the air humidity in the energy storage cabinet; the second sensor is used for detecting the concentration of combustible gas in the energy storage cabinet; the first sensor and the second sensor are electrically connected with the air inlet and the air outlet, the air inlet and the air outlet are normally closed, and the air inlet and the air outlet can be adjusted to be in an open state when the real-time detection result of the first sensor and / or the second sensor exceeds respective set values. According to the energy storage cabinet, the air inlet and the air outlet are arranged, so that the energy storage cabinet has a ventilation condition and is kept sealed in a daily operation state, only the operation power of the first fan is consumed when moisture and combustible gas are exhausted, the structure is simple, and the energy consumption is low. The utility model also discloses an energy storage system comprising the energy storage cabinet.

Description

Technical Field

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

[0002] At present, with the improvement of people's living standards, the application of electric energy storage products is becoming more and more extensive, and the demand for energy storage cabinets is also becoming stronger. Therefore, energy storage cabinets need to operate stably in various environments. However, in some relatively harsh environments, such as high humidity environments or areas with large temperature differences between day and night, external moisture will enter the energy storage cabinet and condense into liquid water inside the cabinet, which may seriously affect the safe operation of the energy storage products.

[0003] To prevent moisture from affecting the operating status of energy storage cabinets, industrial dehumidifiers are currently installed in energy storage cabinets operating under corresponding working conditions. The dehumidifier's built-in fan circulates the air inside the cabinet, allowing the circulating high-humidity gas to contact a cold source inside the dehumidifier, condensing the gaseous water vapor into liquid water, which is then discharged out of the cabinet through a guide pipe. In the above dehumidification solution, the installation of the dehumidifier will occupy a certain amount of space inside the cabinet, resulting in a larger cabinet size, increasing the cost and difficulty of installation. At the same time, to ensure air circulation within the cabinet, the dehumidifier must run continuously, which consumes a lot of power and is relatively expensive.

[0004] Therefore, how to reduce the production cost and dehumidification operation cost of the energy storage cabinet while making it have dehumidification function is a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of the present invention is to provide an energy storage cabinet so as to have a dehumidification function while reducing the production and dehumidification operation costs.

[0006] Another object of the present invention is to provide an energy storage system comprising the above energy storage cabinet.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] An energy storage cabinet, comprising:

[0009] An air inlet and an air outlet, wherein a dehumidification module is provided on the air flow path between the air inlet and the air outlet, and the air outlet is provided with a first fan with an exhaust direction toward the outside of the energy storage cabinet;

[0010] a first sensor, configured to detect air humidity in the energy storage cabinet;

[0011] a second sensor, configured to detect the concentration of combustible gas in the energy storage cabinet;

[0012] Both the first sensor and the second sensor are electrically connected to the air inlet and the air outlet. The air inlet and the air outlet are normally closed and can be opened when the real-time detection results of the first sensor and / or the second sensor exceed their respective set values.

[0013] Preferably, in the above energy storage cabinet, the air outlet is communicatively connected to the first fan, and the air outlet is opened to feedback the synchronous start and operation of the first fan.

[0014] Preferably, in the above energy storage cabinet, a second fan with an air inlet direction towards the inside of the energy storage cabinet is provided at the air inlet, and the second fan is linked with the air inlet to be synchronously opened.

[0015] Preferably, in the above energy storage cabinet, the air inlet includes a first air inlet and a second air inlet arranged at intervals. The dehumidification module is at least arranged to cover the air inlet area of the first air inlet, and the first air inlet and the second air inlet act independently;

[0016] The first air inlet and the air outlet are opened, and the second air inlet is closed to enable the energy storage cabinet to perform a dehumidification action; the second air inlet and the air outlet are opened, and the first air inlet is closed to enable the energy storage cabinet to perform an exhaust action. The dehumidification action is detected and fed back by the first sensor, and the exhaust action is detected and fed back by the second sensor.

[0017] Preferably, in the above energy storage cabinet, a third fan is further included. The working area of the third fan at least covers part of the areas of the first air inlet and the second air inlet. The third fan is always on or only synchronously and linkedly opened when the first air inlet or the second air inlet is opened.

[0018] Preferably, in the above energy storage cabinet, the first fan is shared with the fire fan in the energy storage cabinet. The air outlet is arranged at the same height as the first fan and close to the first fan. The air inlet and the air outlet are arranged on two opposite sides of the energy storage cabinet, and the horizontal height of the air outlet is higher than that of the air inlet.

[0019] Preferably, in the above energy storage cabinet, the dehumidification module is a waterproof and breathable film arranged on the inner wall of the energy storage cabinet and completely covering the air inlet area, or,

[0020] The dehumidification module is a heat exchange unit. A low-temperature medium flows in the heat exchange unit to condense and collect and discharge water vapor in the air on the outer surface of the heat exchange unit.

[0021] Preferably, in the above energy storage cabinet, the outer surface of the heat exchange unit is a finned structure or has a micro-channel structure for air flow.

[0022] Preferably, in the above energy storage cabinet, the air inlet and the air outlet are sealed doors, and a rubber pad is fixedly arranged on one side of the sealed door in contact with the wall surface of the energy storage cabinet.

[0023] An energy storage system includes a battery cell, an electrical device, and the energy storage cabinet provided in any one of the above embodiments. The battery cell and the electrical device are arranged inside the energy storage cabinet, and the air inlet of the energy storage cabinet is arranged facing the battery cell and the electrical device.

[0024] It can be seen from the above technical solutions that the energy storage cabinet provided by the present invention is provided with an air inlet and an air outlet on the energy storage cabinet to open and communicate the internal and external spaces of the energy storage cabinet when dehumidifying or exhausting the energy storage cabinet is required, and to close and maintain the sealed state of the energy storage cabinet when the energy storage cabinet is operating normally. At the same time, a dehumidification module is arranged on the air flow path of the air inlet and the air outlet, and a first fan with the exhaust direction facing the outside of the energy storage cabinet is arranged at the position of the air outlet to drive the smooth flow of the air flow through the first fan, and to dehumidify the gas entering the energy storage cabinet to accelerate the dehumidification efficiency of the energy storage cabinet. The start-up feedback of the air inlet and the air outlet is realized by a first sensor for detecting the air humidity in the energy storage cabinet and a second sensor for detecting the concentration of combustible gas in the energy storage cabinet, ensuring the intelligent operation of the air inlet and the air outlet when the energy storage cabinet needs to be dehumidified or exhausted. The above structure ensures that when the air humidity in the energy storage cabinet is too high or the concentration of combustible gas is too high, the air inlet and the air outlet are started to dehumidify and exhaust the energy storage cabinet. The present application also arranges a first fan to drive the air flow, so as to simultaneously meet the acceleration of the discharge of combustible gas or humid gas. The integrated design enables a single fan to meet two functions, thereby reducing the production cost of the energy storage cabinet. At the same time, the structures of the air inlet and the air outlet are arranged on the side wall of the energy storage cabinet, which occupies extremely small space in the equipment accommodation area inside the energy storage cabinet. The energy storage cabinet does not need to increase its original design size due to the addition of the air inlet and the air outlet, and only needs to open corresponding hole structures in the side wall area to meet the design requirements of the air inlet and the air outlet. The hole opening operation is simple and efficient and does not damage the original configuration of the energy storage cabinet. That is, the setting of the dehumidification and exhaust modules does not increase the structural design difficulty of the energy storage cabinet, but reduces the product design and production cost of the energy storage cabinet. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0026] Figure 1Schematic diagram of the energy storage cabinet and energy storage system provided by the embodiment of the present utility model;

[0027] Figure 2 For Figure 1 Schematic diagram of the middle exhaust air port structure;

[0028] Figure 3 Schematic diagram of the energy storage cabinet when the first air inlet is open and the second air inlet is closed;

[0029] Figure 4 Schematic diagram of the energy storage cabinet when the first air inlet is closed and the second air inlet is open;

[0030] Figure 5 Schematic diagram of the structure when a second fan is arranged at the air inlet;

[0031] Figure 6 Schematic diagram of the air inlet position structure when a third fan is arranged;

[0032] Figure 7 Schematic diagram of the structure when a dehumidification module is arranged at both the air inlet and the exhaust air port;

[0033] Wherein, 10 - energy storage cabinet; 20 - air inlet; 210 - dehumidification module; 220 - second fan; 230 - first air inlet; 240 - second air inlet; 250 - third fan; 30 - exhaust air port; 310 - first fan; 40 - first sensor; 50 - second sensor; 60 - battery cells and electrical equipment. Detailed implementation manners

[0034] The core of the present utility model lies in disclosing an energy storage cabinet, so that it has a dehumidification function while reducing the product production and dehumidification operation costs.

[0035] Another object of the present utility model is to provide an energy storage system including the above energy storage cabinet.

[0036] In order to enable those skilled in the art to better understand the solution of the present utility model, the embodiments of the present utility model will be described below with reference to the accompanying drawings. In addition, the embodiments shown below do not limit the content of the utility model recorded in the claims in any way. In addition, all the contents shown in the following embodiments are not limited to what is necessary for the solution of the utility model recorded in the claims.

[0037] Such as Figure 1 And Figure 2As shown, the energy storage cabinet 10 provided by the embodiment of the present utility model is suitable for safely storing and maintaining energy storage devices. The main structure of the energy storage cabinet 10 includes an air inlet 20, an air outlet 30, a first fan 310, a dehumidification module 210, a first sensor 40, and a second sensor 50. Among them, the air inlet 20 and the air outlet 30 of the energy storage cabinet 10 are designed to control the air exchange inside and outside the cabinet. Specifically, when the air inlet 20 and the air outlet 30 are in the open state, the internal space of the energy storage cabinet 10 is connected to the external environment, and there is a path for air exchange inside and outside the energy storage cabinet 10. When the air inlet 20 and the air outlet 30 are in the closed state, the areas where the air inlet 20 and the air outlet 30 are provided on the energy storage cabinet 10 form a closed structure with the cabinet body to maintain the sealing structure of the energy storage cabinet 10, ensuring that there is no air leakage in the energy storage cabinet 10 when the air vents are closed.

[0038] In the above structure, when the working condition of the energy storage cabinet 10 has a relatively high air humidity and the internal humidity of the energy storage cabinet 10 poses a risk to the internal settings, the air inside the energy storage cabinet 10 can be timely replaced by opening the air inlet 20 and the air outlet 30. Correspondingly, a first fan 310 is provided at the position of the air outlet 30 in the embodiment of the present utility model. When the first fan 310 starts, its exhaust direction is designed to be towards the outside of the energy storage cabinet 10 to promote the discharge of the air inside the cabinet. At this time, the inside of the energy storage cabinet 10 is in a negative pressure state, so that the air in the external environment enters the inside of the energy storage cabinet 10 from the position of the air inlet 20, and the air inside the energy storage cabinet 10 circulates, thereby taking out the air with a relatively high humidity inside the energy storage cabinet 10.

[0039] Considering that in an environment with a relatively high air humidity, the air flow entering the energy storage cabinet 10 from the air inlet 20 for air circulation inside the energy storage cabinet 10 may also have a relatively high humidity, and its dehumidification effect on the inside of the energy storage cabinet 10 is relatively small. Therefore, a dehumidification module 210 is also provided on the air flow path between the air inlet 20 and the air outlet 30 in the embodiment of the present utility model. It should be noted that the air flow path between the air inlet 20 and the air outlet 30 specifically refers to the path where the air enters the energy storage cabinet 10 from the air inlet 20 and then flows inside the energy storage cabinet 10 to the position of the air outlet 30; for the air flow path between the air inlet 20 and the air outlet 30, it can be guided by setting pipes or the air flow can flow freely, as long as the dehumidification module 210 is arranged on the air flow path to dehumidify the air flow, so as to reduce the gas humidity inside the energy storage cabinet 10.

[0040] It should be noted that, in order to reduce the relatively high humidity of the gas entering the energy storage cabinet 10 and prevent it from escaping, which may affect other components inside the energy storage cabinet 10, in some embodiments of the present application, the dehumidification module 210 is arranged at the position of the air inlet 20 and at least covers the air inlet area, so that all the gas entering the energy storage cabinet 10 from the air inlet 20 position is dehumidified, thereby enhancing the dehumidification effect of the dehumidification module 210 on the interior of the energy storage cabinet 10.

[0041] It should be noted that the coverage range of the dehumidification module 210 can be much larger than the air inlet 20, so as to dehumidify the air flowing into the air inlet 20 and at the same time dehumidify some areas inside the energy storage cabinet 10, thereby enhancing the progress of gas dehumidification inside the energy storage cabinet 10.

[0042] Furthermore, in order to achieve intelligent control of the air inlet 20 and the air outlet 30 positions, that is, to adjust the opening and closing of the air inlet 20 and the air outlet 30 when dehumidification or exhaust is required inside the energy storage cabinet 10, the embodiments of the present utility model are also provided with a first sensor 40 and a second sensor 50. Among them, the first sensor 40 is used to detect the humidity of the air inside the energy storage cabinet 10, and the second sensor 50 is used to detect the concentration of combustible gas inside the energy storage cabinet 10. The first sensor 40 and the second sensor 50 both have preset detection values. At the same time, the first sensor 40 and the second sensor 50 are both electrically connected to the air inlet 20 and the air outlet 30. It should be noted that the electrical connection here specifically refers to a signal connection. The moving components in the air inlet 20 and the air outlet 30, such as motors and cylinders, can receive the feedback signals from the first sensor 40 and the second sensor 50 and make corresponding actions. The fact that the first sensor 40 and the second sensor 50 are both electrically connected to the air inlet 20 and the air outlet 30 specifically means that the first sensor 40 can independently feedback signals to the air inlet 20 and the air outlet 30 and adjust the opening and closing, and the second sensor 50 can independently feedback signals to the air inlet 20 and the air outlet 30 and adjust the opening and closing.

[0043] Based on the above structure, the air inlet 20 and the air outlet 30 are in a closed state under normal conditions. Here, the normal state means the state in which the energy storage cabinet 10 operates normally without abnormalities. The air inlet 20 and the air outlet 30 are closed to maintain the sealed state of the energy storage cabinet 10 and protect the safety of its normal operation. When the structure detected by one or both of the first sensor 40 and the second sensor 50 exceeds their respective preset set values, the air inlet 20 and the air outlet 30 are adjusted to the open state, and the interior of the energy storage cabinet 10 is connected to the external environment, thus providing the condition for air exchange inside and outside, and diffusing the air with relatively high humidity or the combustible gas with relatively high concentration inside the energy storage cabinet 10.

[0044] The first fan 310 for accelerating the air flow circulation has various adjustment methods. For example, in a specific embodiment of the present invention, the first fan 310 can be kept in a normally open state. Correspondingly, when the air inlet 20 and the air outlet 30 are in a closed state, the air flow in the energy storage cabinet 10 will circulate internally under the action of the first fan 310, thereby improving the air flow uniformity inside the energy storage cabinet 10. At this time, if the air humidity is high or flammable gas accumulates in some areas inside the energy storage cabinet 10, they will be diffused and diluted to other areas inside the energy storage cabinet 10 under the action of the first fan 310, so that the concentration is reduced, avoiding the sensor detecting too high concentration in some areas and wrongly triggering the operating states of the air inlet 20 and the air outlet 30. At the same time, when the air inlet 20 and the air outlet 30 are in an open state, the first fan 310 will drive the air flow inside the energy storage cabinet 10 to be discharged from the position of the air outlet 30, making the inside of the energy storage cabinet 10 in a negative pressure state, and driving the external air to enter the inside of the energy storage cabinet 10 from the position of the air inlet 20, promoting the air flow circulation and performing the operation of reducing the humidity or the concentration of flammable gas in the energy storage cabinet 10.

[0045] In another specific embodiment of the present invention, in order to reduce the power consumption of the energy storage cabinet 10, the first fan 310 is designed to be adjusted to start only when the energy storage cabinet 10 needs to dehumidify or discharge flammable gas. The first fan 310 and the air outlet 30 are linked through mechanical connection or communication connection. For example, a transmission arm is arranged between the first fan 310 and the air outlet 30. When the energy storage cabinet 10 needs to dehumidify or discharge flammable gas, the air outlet 30 opens. At this time, the relevant structure on the air outlet 30 will displace and drive the transmission arm to act, and the transmission arm will trigger the start switch of the first fan 310 through the displacement to realize the linked start of the first fan 310 and the air outlet 30. The first fan 310 and the air outlet 30 being linked through communication connection can be that the first fan 310 is signal-connected to at least one of the first sensor 40 and the second sensor 50, and when one or both of the first sensor 40 and the second sensor 50 feedback signals and drive the air outlet 30 to open, the first fan 310 starts synchronously to realize the synchronous start of the first fan 310 and the air outlet 30.

[0046] It should be noted that the main purpose of setting the first fan 310 is to drive the air flow to flow outwards from the energy storage cabinet 10. It can also cooperate with other fans. For example, other fans are arranged in the middle area of the energy storage cabinet 10 to drive the gas uniformity of the internal environment of the energy storage cabinet 10, and more accurately judge the working requirements of the energy storage cabinet 10 for dehumidification or exhaust.

[0047] The energy storage cabinet 10 provided by the embodiment of the present utility model is provided with an air inlet 20 and an air outlet 30 thereon, which are opened to connect the internal and external spaces of the energy storage cabinet 10 when dehumidification or exhaust of the energy storage cabinet 10 is required, and are closed to maintain the sealed state of the energy storage cabinet 10 during the normal operation of the energy storage cabinet 10. At the same time, a dehumidification module 210 is arranged on the air flow path between the air inlet 20 and the air outlet 30, and a first fan 310 is arranged at the air outlet 30 to drive the smooth flow of the air flow through the first fan 310, and dehumidify the gas in the energy storage cabinet 10 to accelerate the dehumidification efficiency of the energy storage cabinet 10. The start-up feedback of the air inlet 20 and the air outlet 30 is realized by a first sensor 40 for detecting the air humidity in the energy storage cabinet 10 and a second sensor 50 for detecting the concentration of combustible gas in the energy storage cabinet 10, ensuring the intelligent operation of the air inlet 20 and the air outlet 30 when the energy storage cabinet 10 needs dehumidification or exhaust. The above structure ensures that when the air humidity in the energy storage cabinet 10 is too high or the concentration of combustible gas is too high, the air inlet 20 and the air outlet 30 are started to perform the dehumidification and exhaust functions of the energy storage cabinet 10. At the same time, the structures of the air inlet 20 and the air outlet 30 are arranged on the side wall of the energy storage cabinet 10, which occupies extremely small space in the equipment accommodation area in the energy storage cabinet 10. The energy storage cabinet 10 does not need to increase the design size due to the air inlet 20 and the air outlet 30, that is, the setting of the dehumidification and exhaust modules does not increase the structural design difficulty of the energy storage cabinet 10, but reduces the product design and production cost of the energy storage cabinet 10. At the same time, both the dehumidification module 210 and the first fan 310 are components with relatively small power. In the open state of the air inlet 20 and the air outlet 30, the power consumption of the whole set of dehumidification equipment is significantly reduced compared with the dehumidifier in the prior art, thereby reducing the dehumidification cost of the energy storage cabinet 10.

[0048] Furthermore, in some embodiments of the present utility model, such as Figure 5As shown, corresponding to the first fan 310, a second fan 220 is provided at the air inlet 20. Specifically, the driving direction of the second fan 220 for the air flow is towards the inside of the energy storage cabinet 10. When the air inlet 20 and the air outlet 30 are in the open state, the simultaneous activation of the first fan 310 and the second fan 220 can further accelerate the air circulation inside the energy storage cabinet 10, thereby accelerating the dehumidification or exhaust operation of the energy storage cabinet 10. Similarly, for the sake of power cost savings, the second fan 220 is started synchronously with the air inlet 20, that is, when the air inlet 20 switches to the open state, the second fan 220 starts running synchronously. It should be noted that the linkage action between the second fan 220 and the air inlet 20 is the same as the linkage method between the first fan 310 and the air outlet 30, and can also be realized by a mechanical connection structure or a communication connection. Here, a communication connection linkage structure is taken as an example for illustration. The second fan 220 can be signal-connected to at least one of the first sensor 40 and the second sensor 50, and when one or both of the first sensor 40 and the second sensor 50 feedback signals and drive the air inlet 20 to open, the second fan 220 starts synchronously to drive the air flow.

[0049] Based on the above embodiments, under specific working conditions, when the energy storage cabinet 10 needs to seal and protect the internal electrical components and there is a dehumidification requirement at the same time, such as Figure 7 As shown, the first fan 310 and the second fan 220 can be started simultaneously while keeping the air inlet 20 and the air outlet 30 closed. Here, the energy storage cabinet 10 is in a good sealed state, and the operation of the first fan 310 and the second fan 220 will drive the gas in the energy storage cabinet 10 to circulate inside the energy storage cabinet 10. The gas in the energy storage cabinet 10 will evenly flow through the dehumidification module 210 to perform the internal dehumidification operation. And in order to further enhance the effective dehumidification effect in the internal circulation state, a dehumidification module 210 can also be provided at the air outlet 30. The air flow will be dehumidified twice during a single circulation flow inside the energy storage cabinet 10, thereby reducing the air humidity inside the energy storage cabinet 10.

[0050] It should be noted that during the above internal circulation dehumidification process, it is preferable that the dehumidification module 210 is a device for condensing and dehumidifying the air, so as to be able to condense the water vapor and discharge it in time during the air flow circulation in the energy storage cabinet 10 to reduce the air humidity.

[0051] In the energy storage cabinet 10 provided by the embodiments of the present invention, the air inlet 20 and the air outlet 30 actually need to meet the two working condition requirements of internal dehumidification and flammable gas discharge of the energy storage cabinet 10. When discharging flammable gas, the dehumidification module 210 is not actually required to function, but the design of a single air inlet 20 will cause the energy storage cabinet 10 to consume the life of the dehumidification module 210 during the discharge of flammable gas, which will also increase the product use cost of the energy storage cabinet 10. Therefore, in some embodiments of the present invention, such asFigure 3 and Figure 4 As shown in Figure 4 , the air inlet 20 includes a first air inlet 230 and a second air inlet 240 which are arranged at intervals. Among them, the first air inlet 230 and the second air inlet 240 act independently. The first air inlet 230 is mainly used for dehumidifying the energy storage cabinet 10. The dehumidification module 210 at least covers the air inlet area of the first air inlet 230. It should be noted that the air inlet area here specifically refers to the area on the cross-sectional structure of the first air inlet 230 through which air passes when the air enters the energy storage cabinet 10 through the first air inlet 230. At the same time, the dehumidification module 210 covering the air inlet area of the first air inlet 230 specifically means that the dehumidification module 210 wraps the air inlet area, so that the air passing through the air inlet area of the first air inlet 230 needs to pass through the dehumidification module 210 before entering the energy storage cabinet 10, so as to complete the dehumidification operation of the air entering the energy storage cabinet 10. The second air inlet 240 is mainly used for discharging combustible gas from the energy storage cabinet 10. It should be noted that the operation processes of the first air inlet 230 and the second air inlet 240 can also be realized through a mechanical structure or a communication connection structure. In order to reduce the structural complexity in this embodiment, a communication connection method is adopted. Specifically, as Figure 3 shown in Figure 3 , when the first sensor 40 detects that the air humidity in the energy storage cabinet 10 exceeds the set value of the first sensor 40, it feeds back that the first air inlet 230 and the air outlet 30 are synchronously adjusted to the open state, while the second air inlet 240 remains closed. The external air flow enters from the first air inlet 230, passes through the dehumidification module 210 and then enters the interior of the energy storage cabinet 10, and flows through the energy storage cabinet 10 and is discharged from the position of the air outlet 30 to replace the air with higher humidity in the energy storage cabinet 10 to realize the dehumidification in the energy storage cabinet 10; and as Figure 4 shown in Figure 4 , when the second sensor 50 detects that the concentration of combustible gas in the energy storage cabinet 10 exceeds the set value of the second sensor 50, it feeds back and adjusts the second air inlet 240 and the air outlet 30 to the open state, while the first air inlet 230 remains closed. The external gas directly flows through the energy storage cabinet 10 without dehumidification to take out the air with a higher concentration of combustible gas in the energy storage cabinet 10.

[0052] It should be noted that the first air inlet 230 and the second air inlet 240 can also be opened synchronously to increase the air flow rate entering the energy storage cabinet 10, so as to achieve the purpose of quickly discharging combustible gas, and then the first air inlet 230 is opened alone for dehumidification.

[0053] On the basis of the above embodiments, as Figure 6As shown, the energy storage cabinet 10 is further provided with a third fan 250. The air flow direction that the third fan 250 can drive is towards the inside of the energy storage cabinet 10, and the working area of the third fan 250 at least covers part of the first air inlet 230 and the second air inlet 240. When the first air inlet 230 or the second air inlet 240 is in an open state, the third fan 250 is synchronously started and operated through communication-connected structuring, so as to accelerate the air circulation inside the energy storage cabinet 10, accelerate the dehumidification or exhaust action of the energy storage cabinet 10, and sharing the same fan for the first air inlet 230 or the second air inlet 240 can make the component design inside the energy storage cabinet 10 more compact and reduce the difficulty of setting the component space inside the energy storage cabinet 10.

[0054] In order to reduce the setting cost of the energy storage cabinet, the first fan 310 in the embodiment of the present application shares the original fire fan in the energy storage cabinet 10. At the same time, the air outlet 30 is set at the same height as the first fan 310 and close to the first fan 310, and the air outlet 30 and the air inlet 20 are respectively arranged on two opposite sides of the energy storage cabinet 10, so that the air flow path is longer and more effective dehumidification can be achieved. Preferably, the horizontal height of the air outlet 30 is higher than that of the air inlet 20, and the air flow needs to rise and then be discharged from the air outlet 30, so that the air flow residence time is increased and effective dehumidification can be achieved.

[0055] Furthermore, considering that the air with higher humidity will accumulate more at the bottom layer inside the energy storage cabinet 10, in order to enable the external air to more efficiently take away the air with higher humidity, in the embodiment of the present utility model, the air inlet 20 and the air outlet 30 are respectively arranged at two diagonal positions of the energy storage cabinet 10, so that the air flowing in and out of the energy storage cabinet 10 through the air inlet 20 flows through a longer path inside the energy storage cabinet 10 and then is discharged from the position of the air outlet 30, realizing the full replacement of the gas inside the energy storage cabinet 10. At the same time, preferably, the horizontal height of the air outlet 30 is higher than the horizontal height of the air inlet 20, so that the bottom area inside the energy storage cabinet 10 is first filled with external air, and the air with higher humidity is preferentially discharged from the air outlet 30, thereby improving the dehumidification efficiency of the energy storage cabinet 10.

[0056] Furthermore, in the energy storage cabinet 10 provided by the embodiment of the present utility model, the dehumidification module 210 can adopt various structural forms. For example, the dehumidification module 210 can be a waterproof breathable membrane, which is arranged in the inner wall area of the energy storage cabinet and completely covers the air inlet 20 area. The waterproof breathable membrane can block liquid water vapor and even gaseous water vapor. When the outside air passes through the waterproof breathable membrane, the liquid water vapor and gaseous water vapor can be isolated outside the cabinet, ensuring the dryness of the air entering the cabinet. Similarly, the dehumidification module 210 can also be a heat exchange unit. A low-temperature medium is circulated in the heat exchange unit to condense, collect and discharge the water vapor in the air on the outer surface of the heat exchange unit. On the one hand, it can dehumidify the air entering the energy storage cabinet 10 at the air inlet 20 position, and on the other hand, it can also dehumidify part of the air with higher humidity in the energy storage cabinet 10.

[0057] It should be further noted that the dehumidification module 210 can also be a water-absorbing material layer or a semiconductor dehumidification structure. The semiconductor dehumidification structure can utilize the thermoelectric effect refrigeration of semiconductor materials to achieve the purpose of dehumidifying the air flowing through the dehumidification module 210.

[0058] On the basis of the above embodiment, when the dehumidification module 210 can also be a heat exchange unit, it is preferably that the outer surface of the heat exchange unit is a finned structure or has a micro-channel structure for air circulation, so as to increase the simultaneous contact area and contact duration between the air and the outer surface of the heat exchange unit, and ensure that the air can be well dehumidified by the heat exchange unit before entering the interior of the energy storage cabinet 10.

[0059] In order to ensure the sealing performance of the energy storage cabinet 10 in the normal operation state, in the embodiment of the present utility model, the structures of the air inlet 20 and the air outlet 30 are sealing doors, and the sealing doors can be hinged to the side wall of the energy storage cabinet 10. The cabinet body of the energy storage cabinet 10 is open, and the sealing doors block the openings on the energy storage cabinet 10 when closed to keep the energy storage cabinet 10 in a closed state. Preferably, a rubber pad is fixedly arranged on the side of the sealing door in contact with the wall surface of the energy storage cabinet 10 to maintain its sealing performance when the air inlet 20 and the air outlet 30 are closed.

[0060] The embodiment of the present utility model also provides an energy storage system, which includes a battery cell, electrical equipment and the energy storage cabinet 10 provided by any one of the above embodiments. The battery cell and the electrical equipment 60 are arranged inside the energy storage cabinet 10 to be protected during operation by the energy storage cabinet 10. At the same time, the air inlet 20 of the energy storage cabinet 10 is arranged towards the battery cell and the electrical equipment 60, so as to preferentially perform corresponding actions on important components such as the battery cell and the electrical equipment 60 when dehumidifying and exhausting the air in the energy storage cabinet 10. It should be noted that since the energy storage cabinet 10 has the technical effects provided by the above embodiments, this energy storage system also has the technical effects provided by the above embodiments, which will not be elaborated again here.

[0061] In the description, claims and above-mentioned drawings of the present utility model, terms such as "first", "second", "third", "left side" and "right side" are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that comprises a series of steps or units is not limited to the listed steps or units, but may include steps or units not listed.

[0062] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. An energy storage cabinet, characterized in that, include: An air inlet and an air outlet, wherein a dehumidification module is provided on the air flow path between the air inlet and the air outlet, and the air outlet is provided with a first fan with an exhaust direction toward the outside of the energy storage cabinet; a first sensor, configured to detect air humidity in the energy storage cabinet; a second sensor, configured to detect the concentration of combustible gas in the energy storage cabinet; The first sensor and the second sensor are both electrically connected to the air inlet and the air outlet. The air inlet and the air outlet are normally closed and can be opened when the real-time detection results of the first sensor and / or the second sensor exceed their respective set values.

2. The energy storage cabinet according to claim 1, wherein The exhaust port is in communication with the first fan, and the exhaust port is opened to provide feedback to the first fan to start operating synchronously.

3. The energy storage cabinet according to claim 1, characterized in that The air inlet is provided with a second fan with an air inlet direction toward the interior of the energy storage cabinet, and the second fan is linked with the air inlet to be opened synchronously.

4. The energy storage cabinet according to claim 1, wherein, The air inlet includes a first air inlet and a second air inlet arranged at an interval, the dehumidification module is arranged to cover at least the air inlet area of the first air inlet, and the first air inlet and the second air inlet operate independently; The first air inlet and the air outlet are opened, and the second air inlet is closed so that the energy storage cabinet performs a dehumidification action; the second air inlet and the air outlet are opened, and the first air inlet is closed so that the energy storage cabinet performs an exhaust action, the dehumidification action is detected and fed back by the first sensor, and the exhaust action is detected and fed back by the second sensor.

5. The energy storage cabinet according to claim 4, wherein, A third fan is also included, the working area of the third fan at least covers a portion of the first air inlet and the second air inlet, and the third fan is always on or is turned on synchronously only when the first air inlet or the second air inlet is turned on.

6. The energy storage cabinet according to claim 1, characterized in that, The first fan is shared with the fire-fighting fan in the energy storage cabinet. The exhaust port is arranged at the same height as and close to the first fan. The air inlet and the exhaust port are arranged on two opposite sides of the energy storage cabinet, and the horizontal height of the exhaust port is higher than that of the air inlet.

7. The energy storage cabinet according to claim 1, characterized in that, The dehumidification module is a waterproof and breathable membrane provided on the inner wall of the energy storage cabinet and completely covering the air inlet area, or, The dehumidification module is a heat exchange unit, and a low-temperature medium flows through the heat exchange unit to condense, collect and discharge water vapor in the air on the outer surface of the heat exchange unit.

8. The energy storage cabinet according to claim 7, characterized in that, The outer surface of the heat exchange unit is a fin structure or a micro-channel structure for air circulation.

9. The energy storage cabinet according to claim 1, characterized in that, The air inlet and the air outlet are sealed doors, and a rubber pad is fixedly provided on the side of the sealed door that contacts the wall of the energy storage cabinet.

10. A energy storage system, characterized in that, The energy storage cabinet comprises a battery cell, an electrical device and the energy storage cabinet according to any one of claims 1 to 9, wherein the battery cell and the electrical device are arranged inside the energy storage cabinet, and the air inlet of the energy storage cabinet is arranged toward the battery cell and the electrical device.

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