Energy storage cabinet and energy storage system

Abstract

The invention discloses an energy storage cabinet and an energy storage system.The energy storage cabinet comprises a cabinet body, a cooling fan, a controller and an opening and closing sensor, the cabinet body comprises a cabinet door and a cabinet body which are connected, the cabinet door is provided with a first position and a second position relative to the cabinet body, and when the cabinet door is located at the first position, the internal space of the cabinet body is isolated from the external space of the cabinet body; when the cabinet door is located at the second position, the internal space of the cabinet body is communicated with the external space of the cabinet body; the heat dissipation fan is installed on the side wall of the cabinet body. The space in the cabinet and the space outside the cabinet body form a commutation channel through the operation of the heat dissipation fan; the controller is electrically connected with a power supply of the energy storage cabinet and the heat dissipation fan; the opening and closing sensor is located in the cabinet inner space and is electrically connected with the controller; the opening and closing sensor is used for collecting the position state of the cabinet door, and the controller controls operation of the cooling fan according to the position state.

Description

Technical Field

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

[0002] In the energy storage system, the heat dissipation effect of the energy storage cabinet is crucial to the energy storage system. It not only affects the performance and life of the battery, reduces the negative impact of high temperature on the efficiency of the battery chemical reaction, but also affects the safety and stability of the entire system. Good heat dissipation design can prevent the battery from thermal runaway due to overheating, reduce failures and maintenance requirements, improve the energy efficiency of the system, and ensure that the energy storage system can operate reliably under various environmental conditions.

[0003] During the energy storage process of the energy storage cabinet, the heat dissipation system will divert part of the energy to complete the operation of the heat dissipation system. This will reduce the energy storage efficiency of the energy storage cabinet. Therefore, how to ensure the heat dissipation effect of the heat dissipation system while reducing the energy consumption of the heat dissipation system has become the main research direction. Summary of the invention

[0004] In view of this, the present application provides an energy storage cabinet and an energy storage system to solve the above technical problems.

[0005] A first aspect of an embodiment of the present application provides an energy storage cabinet, which includes a cabinet body, a heat dissipation fan, a controller and an opening and closing sensor, wherein the cabinet body includes a cabinet door and a cabinet body connected to each other, the cabinet door has a first position and a second position relative to the cabinet body, when the cabinet door is at the first position, the cabinet space inside the cabinet body is isolated from the external space of the cabinet body; when the cabinet door is at the second position, the cabinet space inside the cabinet body is connected to the external space of the cabinet body; the heat dissipation fan is installed on the side wall of the cabinet body; the cabinet space and the external space of the cabinet form a flow conversion channel through the operation of the heat dissipation fan; the controller is electrically connected to the power supply and heat dissipation fan of the energy storage cabinet; the opening and closing sensor is located in the cabinet space, and the opening and closing sensor is electrically connected to the controller; when the cabinet door is at the first position, the opening and closing sensor collects a first opening and closing state, and the controller controls the heat dissipation fan to be in a first operating state according to the first opening and closing state; when the cabinet door is at the second position, the opening and closing sensor collects a second opening and closing state, and the controller controls the heat dissipation fan to be in a second operating state according to the second opening and closing state.

[0006] In the present application, by adding an opening and closing sensor and a controller, the operation of the heat dissipation fan can be regulated. When the energy storage cabinet is in the state of opening the cabinet door, due to the direct connection between the space inside the cabinet and the external space, the heat dissipation path of the space inside the cabinet includes a flow conversion channel formed by the operation of the heat dissipation fan, and a heat exchange channel formed by the direct contact between the space inside the cabinet and the external space. In this way, when the energy storage cabinet is in the state of opening the cabinet door, the wind output of the heat dissipation fan can be appropriately reduced or stopped through the control of the controller to reduce the energy consumption of the heat dissipation fan, so that the part of the energy saved can be stored in the energy storage carrier of the energy storage cabinet, thereby improving the energy storage efficiency of the energy storage cabinet, that is, while ensuring the heat exchange effect of the energy storage cabinet in different structural states, the energy consumption of the heat dissipation fan is reduced, thereby increasing the energy storage efficiency of the energy storage cabinet.

[0007] The second aspect of the embodiment of the present application provides an energy storage system, which includes the energy storage cabinet in the first aspect of the embodiment of the present application. Since the beneficial effects of the embodiment of the second aspect of the present application are derived from the embodiment of the first aspect of the present application, the main beneficial effects of the second aspect of the embodiment of the present application, please refer to the beneficial effects of the first aspect of the embodiment of the present application, which will not be repeated here.

[0008] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the following specifically cites the embodiments of the present application and describes them in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0010] Figure 1 A schematic diagram of the structure of an energy storage system in this application;

[0011] Figure 2 It is a structural schematic diagram of an energy storage cabinet from a first-person perspective;

[0012] Figure 3 for Figure 2 A schematic diagram of the structure of the energy storage cabinet in the second viewing angle;

[0013] Figure 4 for Figure 2 Front view of the middle energy storage cabinet;

[0014] Figure 5 for Figure 4 A front view of an internal structure of a middle energy storage cabinet;

[0015] Figure 6 for Figure 5 Front view of the internal structure of the energy storage cabinet after the space is divided;

[0016] Figure 7 for Figure 6 A schematic diagram of the structure of the cooling assembly;

[0017] Figure 8 for Figure 4 A front view of another internal structure of the middle energy storage cabinet;

[0018] Fig. 9 for Figure 8 A schematic diagram of the structure of the cooling assembly;

[0019] Fig.10 for Figure 6 and Figure 8 Schematic diagram of the structure of the radiator.

[0020] Reference numerals:

[0021] 1000-energy storage system, 100-energy storage cabinet, 200-power supply, 1-cabinet, 10-cabinet door, 11-cabinet body, 110-cabinet space, 111-cabinet body, 112-top box, 113-exhaust port, 114-first space, 115-second space, 116-handle, 117-installation position, 12-installation plate, 2-cooling fan, 3-controller, 4-opening and closing sensor, 5-cooling mechanism, 50-heat exchanger, 501 -heat exchange coil, 502-input port, 503-output port, 504-heat sink fins, 51-cooling assembly, 510-box, 510a-liquid filling port, 510b-cover, 511-refrigerant space, 512-refrigerant, 513-first recess, 514-input pipe, 515-output pipe, 516-pump body, 517-air pressure balance pipe, 519-cooler, 520-refrigerant circulation system, 52-power supply, 6-temperature sensor. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application is clearly and completely described below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are only embodiments of a part of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of this application.

[0023] Unless otherwise defined, the technical or scientific terms used herein shall have the usual meaning as understood by a person of ordinary skill in the field to which this application belongs. The words "one", "an" or "the" and the like used in this application do not indicate a quantitative limitation, but are only used to indicate the presence of at least one. The words "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. The words "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0024] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0025] With the transformation of the global energy structure and the rapid development of renewable energy, energy storage systems have emerged to solve the mismatch between energy supply and demand. Energy storage systems can store excess energy for use during peak hours, thereby improving energy utilization efficiency and reducing energy waste. In addition, energy storage systems are of great significance for balancing grid loads, supporting the grid connection of renewable energy, and improving the stability and reliability of power systems.

[0026] In the energy storage system, the heat dissipation effect of the energy storage cabinet is crucial to the energy storage system. It not only affects the performance and life of the battery, reduces the negative impact of high temperature on the efficiency of the battery chemical reaction, but also affects the safety and stability of the entire system. Good heat dissipation design can prevent the battery from thermal runaway due to overheating, reduce failures and maintenance requirements, improve the energy efficiency of the system, and ensure that the energy storage system can operate reliably under various environmental conditions.

[0027] In existing energy storage cabinets, the energy consumed by the heat dissipation system is relatively high. The high energy consumption of the heat dissipation system will reduce the energy efficiency of the energy storage system, increase operating costs, affect system stability, reduce the actual available storage energy, and may have a negative impact on the environment. Therefore, the use of low-energy heat dissipation technology is crucial to improving the overall performance and economy of the energy storage system.

[0028] In order to improve the deficiencies in the prior art, the present application provides an energy storage cabinet and an energy storage system. Figure 1 To Attachment Fig.10 , clearly and completely describe and illustrate each technical solution in the embodiments of this application.

[0029] Please refer to Figure 1 The present application provides an energy storage system 1000, which includes an energy storage cabinet 100. Figures 2 to 5 The energy storage cabinet 100 includes a cabinet body 1, a heat dissipation fan 2, a controller 3 and an opening and closing sensor 4. The cabinet body 1 includes a cabinet door 10 and a cabinet body 11 connected to each other. The cabinet door 10 has a first position and a second position relative to the cabinet body 11. When the cabinet door 10 is located at the first position, the cabinet space 110 of the cabinet body 11 is isolated from the external space of the cabinet body 1; when the cabinet door 10 is located at the second position, the cabinet space 110 of the cabinet body 11 is connected to the external space of the cabinet body 1; the heat dissipation fan 2 is installed on the side wall of the cabinet body 11; the cabinet space 110 is connected to the external space of the cabinet body 1 The space forms a commutation channel through the operation of the heat dissipation fan 2; the controller 3 is electrically connected to the power supply 200 and the heat dissipation fan 2 of the energy storage cabinet 100; the opening and closing sensor 4 is located in the space 110 inside the cabinet, and the opening and closing sensor 4 is electrically connected to the controller 3; when the cabinet door 10 is in the first position, the opening and closing sensor 4 collects the first opening and closing state, and the controller 3 controls the heat dissipation fan 2 to be in the first operating state according to the first opening and closing state; when the cabinet door 10 is in the second position, the opening and closing sensor 4 collects the second opening and closing state, and the controller 3 controls the heat dissipation fan 2 to be in the second operating state according to the second opening and closing state.

[0030] Specifically, the cabinet door 10 can be opened and closed relative to the cabinet body 11, that is, in different application states of the cabinet body 1 (such as opening the cabinet door 10, closing the cabinet door 10), the cabinet door 10 is located at different positions relative to the cabinet body 11, wherein, when the cabinet door 10 is opened, the cabinet door 10 is located at the second position, the cabinet space 110 is connected to the external space of the cabinet body 1, and the cabinet space 110 can directly exchange heat with the external space; when the cabinet door 10 is closed, the cabinet door 10 is located at the first position, and the cabinet door 10 isolates the cabinet space 110 from the external space of the cabinet body 1. At this time, the cabinet space 110 and the external space cannot be directly heat exchanged, and the heat dissipation fan 2 is required to assist in the ventilation operation between the cabinet space 110 and the external space, thereby completing the heat dissipation operation of the cabinet space 110. After the opening and closing sensor 4 collects the position of the cabinet door 10 relative to the cabinet body 11, it will output the opening and closing state signal of the energy storage cabinet 100 to the controller 3, and the controller 3 controls the operation of the cooling fan 2 according to different opening and closing state signals.

[0031] In this way, by setting the opening and closing sensor 4 and the controller 3, the opening and closing sensor 4 collects the position of the cabinet door 10 relative to the cabinet body 11, and outputs the corresponding opening and closing state signal to the controller 3, so that the controller 3 can control the operation of the heat dissipation fan 2 accordingly according to the opening and closing state of the energy storage cabinet 100. When the cabinet door 10 of the energy storage cabinet 100 is opened, the controller 3 can control the heat dissipation fan 2 to stop working or reduce the wind force; when the cabinet door 10 of the energy storage cabinet 100 is closed, the controller 3 can control the heat dissipation fan 2 to start working, or control the heat dissipation fan 2 to increase the wind force, thereby increasing the wind force output effect of the heat dissipation fan, so as to ensure the heat dissipation effect of the energy storage cabinet 100 in the closed state.

[0032] In summary, in the present application, by adding the opening and closing sensor 4 and the controller 3, the operation of the heat dissipation fan 2 can be regulated. When the energy storage cabinet 100 is in the state where the cabinet door 10 is open, due to the direct connection between the cabinet space 110 and the external space, the heat dissipation path of the cabinet space 110 includes the flow conversion channel formed by the operation of the heat dissipation fan 2, and the heat exchange channel formed by the direct contact between the cabinet space 110 and the external space. In this way, when the energy storage cabinet 100 is in the open state of the cabinet door 10, the controller 3 can be controlled to appropriately reduce the heat dissipation. The wind output of the heat dissipation fan 2 is reduced or stopped to reduce the energy consumption of the heat dissipation fan 2, so that the energy saved can be stored in the energy storage carrier (such as lithium-ion battery, nickel-cadmium battery, nickel-hydrogen battery, lead-acid battery, lithium polymer battery, lithium iron phosphate battery, sodium-sulfur battery, vanadium liquid flow battery, etc.) of the energy storage cabinet 100, thereby improving the energy storage efficiency of the energy storage cabinet 100, that is, while ensuring the heat exchange effect of the energy storage cabinet 100 in different structural states, the energy consumption of the heat dissipation fan 2 is reduced, thereby increasing the energy storage efficiency of the energy storage cabinet 100.

[0033] It should be additionally explained that the energy storage cabinet 100 is not limited to the energy storage system 1000, but can also be applied to power systems, transportation systems, etc. to store excess energy for use in later energy peak periods.

[0034] In some embodiments, the cabinet door 10 is provided with a handle 116 to increase the convenience of opening the cabinet door 10 .

[0035] Among them, further, in some embodiments, the cabinet door 10 also has a third position relative to the cabinet body 11, wherein, when the cabinet door 10 is located at the second position, the cabinet space 110 is completely and directly connected to the external space, and when the cabinet door 10 is located at the third position, part of the cabinet space 110 is directly connected to the external space, and another part of the cabinet space 110 is not connected to the external space due to the obstruction of the cabinet door 10. The opening and closing sensor 4 can collect different positions of the cabinet door 10 and transmit the position information to the controller 3, so that the controller 3 controls the working parameters of the cooling fan 2 (such as wind speed, wind direction, etc.). For example, when the cabinet door 10 is located at the second position, the cooling fan 2 can be controlled to stop operating or operate according to the lowest operating parameters. When the cabinet door 10 is located at the third position, the cooling fan 2 can be controlled to operate according to medium operating parameters. When the cabinet door 10 is located at the first position, the cooling fan 2 can be controlled to operate according to the highest operating parameters.

[0036] Please refer to Figure 5 and Figure 6 In some embodiments, the energy storage cabinet 100 further includes a cooling mechanism 5, which includes a heat exchanger 50 and a cooling assembly 51 connected to each other. The heat exchanger 50 and the cooling assembly 51 are both located in the cabinet space 110, wherein the heat exchanger 50 is located on the flow path of the exchange channel, and the heat exchanger 50 can exchange heat with the cooling assembly 51.

[0037] Specifically, during the operation of the heat dissipation fan 2, the heat dissipation fan 2 will generate heat due to its own operation. Moreover, if the temperature difference between the inner space 110 and the external space is small, the energy storage cabinet 100 only performs heat dissipation operation on the inner space 110 through the heat dissipation fan 2. The temperature of the inner space 110 drops slowly and the drop is small, which will affect the heat dissipation effect of the energy storage cabinet 100. Therefore, in the above-mentioned embodiment, a cooling mechanism 5 is additionally provided. The cooling mechanism 5 includes a heat exchanger 50 and a cooling assembly 51. The heat exchanger 50 is located in the flow path of the commutation channel formed by the operation of the heat dissipation fan 2. In order to further reduce the temperature of the airflow in the exchange channel, the temperature difference between the high-temperature gas in the cabinet space 110 and the airflow in the exchange channel is further widened, further increasing the speed and amplitude of the temperature drop in the cabinet space 110, thereby increasing the cooling efficiency of the cabinet space 110; at the same time, because the heat exchanger 50 is located in the cabinet space 110, the gas in the cabinet space 110 can also directly exchange heat with the heat exchanger 50, that is, it is equivalent to increasing the path and area for heat exchange in the cabinet space 110, thereby increasing the cooling efficiency of the cabinet space 110 to a certain extent.

[0038] In addition, after the heat exchanger 50 exchanges heat with the airflow in the exchange channel, the temperature of the heat exchanger 50 will rise. In order to ensure the heat exchange effect of the heat exchanger 50, a cooling component 51 is added. The cooling component 51 is used to cool the heat exchanger 50 so that the heat exchanger 50 maintains a low temperature state, thereby ensuring the heat exchange effect of the heat exchanger 50 during the heat dissipation operation of the energy storage cabinet 100.

[0039] Please combine again Figures 5 to 9 In some embodiments, the cooling assembly 51 includes a box body 510 and a refrigerant circulation system 520. The box body 510 is provided with a refrigerant space 511, and the refrigerant space 511 contains refrigerant 512; the refrigerant circulation system 520 includes an input pipe 514, an output pipe 515 and a pump body 516, the pump body 516 is electrically connected to the power supply 200 and immersed in the refrigerant 512; the heat exchanger 50 includes an input port 502 and an output port 503, one end of the input pipe 514 is connected to the input port 502, and the other end is plugged into the pump body 516; one end of the output pipe 515 is connected to the output port 503, and the other end extends into the refrigerant space 511.

[0040] Specifically, the box body 510 of the cooling component 51 contains a refrigerant 512 that always maintains a low temperature state. The refrigerant 512 can move through the refrigerant circulation system 520 of the cooling component 51 itself to exchange heat with the heat exchanger 50, so that the heat exchanger 50 can be maintained at a low temperature state. In this way, the airflow in the exchange channel of the heat exchanger 50 can always exchange heat with the heat exchanger 50 to form a low-temperature exchange airflow, which can then exchange heat with the high-temperature gas in the cabinet space 110 to cool the high-temperature gas in the cabinet space 110.

[0041] More specifically, the refrigerant 512 can move through the refrigerant circulation system 520, wherein the refrigerant 512 can enter the heat exchanger 50 from the input port 502 of the heat exchanger 50 along the input pipe 514 under the action of the pump body 516, and after completing the heat exchange with the heat exchanger 50, it flows to the output port 503 of the heat exchanger 50, and moves along the output pipe 515, returning to the refrigerant space 511 of the box body 510, and then moves again under the action of the pump body 516, and so on and so forth for recycling; and when the refrigerant 512 that has completed the heat exchange just returns to the refrigerant space 511, this part of the refrigerant 512 is in a high temperature state, and this part of the refrigerant 512 can exchange heat with other low-temperature refrigerants 512 in the refrigerant space 511, thereby restoring the low temperature state, and thus continuing to participate in the subsequent refrigerant 512 circulation operation.

[0042] Since the box 510 has a large weight after containing the refrigerant 512, in some embodiments, the box 510 is installed in the space below the cabinet 1 to lower the center of gravity of the energy storage cabinet 100 as a whole and reduce the possibility of the energy storage cabinet 100 tipping over due to an excessively high center of gravity.

[0043] Further, you can continue to refer to Figure 7 and Fig. 9 The box body 510 also includes a cover body 510b, and the box body 510 is provided with a liquid injection port 510a, and the refrigerant 512 is injected into the refrigerant space 511 from the liquid injection port 510a. After the liquid injection is completed, the cover body 510b is covered on the liquid injection port 510a to isolate the refrigerant 512 from the cabinet space 110. In this way, the refrigerant 512 will not spill out of the refrigerant space 511 during the movement of the box body 510, and impurities in the cabinet space 110 cannot enter the refrigerant space 511, and the refrigerant 512 will not reduce its own performance due to contamination.

[0044] For reference Figure 7 and Fig. 9 In some embodiments, the volume of the refrigerant 512 is smaller than the volume of the refrigerant space 511; the cooling component 51 also includes an air pressure balance pipe 517, in the refrigerant space 511, one end of the air pressure balance pipe 517 is inserted into the refrigerant space 511, and the other end is located in the cabinet space 110, and the end of the air pressure balance pipe 517 is far away from the refrigerant 512.

[0045] Specifically, the air pressure balance pipe 517 is used to balance the internal air pressure of the refrigerant space 511. The internal air pressure of the refrigerant space 511 may change due to the heating or cooling of the cabinet 1. In order to avoid the internal air pressure of the refrigerant space 511 being too high or too low, which may affect the circulation of the refrigerant 512, the air pressure balance pipe 517 is provided. In this way, the cooling performance of the cooling component 51 is further guaranteed, thereby ensuring the heat dissipation effect of the cooling mechanism 5 on the energy storage cabinet 100.

[0046] Please continue to refer to Figure 7 In some embodiments, the cooling assembly 51 also includes a power supply 52 and a cooler 519, and the cooler 519 is electrically connected to the power supply 52; the bottom of the box body 510 is concave to form a first recess 513, the power supply 52 is located in the first recess 513, and the power supply 52 is electrically connected to the power supply 200.

[0047] Among them, the first recess 513 arranged at the bottom of the box body 510 can form a certain space for placing the power supply 52. ​​The bottom wall of the first recess 513 can also isolate the refrigerant space 511 from the cabinet space 110, reduce or shield the mutual contact between the refrigerant 512 and the power supply 52, so as to reduce the influence of the refrigerant 512 on the power supply 52. ​​In this way, while protecting the performance of the power supply 52, it also optimizes the installation volume between the box body 510 and the power supply 52 to a certain extent, reduces the proportion of the total volume of the box body 510 and the power supply 52 in the cabinet space 110, and makes the cabinet space 110 have more space to prevent energy storage carriers (such as lithium-ion batteries, nickel-cadmium batteries, nickel-hydrogen batteries, lead-acid batteries, lithium polymer batteries, lithium iron phosphate batteries, sodium-sulfur batteries, vanadium liquid flow batteries, etc.), which can be referred to Figure 6 The space 110 inside the cabinet can be planned with more installation positions 117 to place energy storage carriers, thereby increasing the energy storage capacity of the energy storage cabinet 100 to a certain extent.

[0048] Please refer to Fig.10 In some embodiments, the heat exchanger 50 includes a heat exchange coil 501, and the heat exchange coil 501 is provided with an input port 502 and an output port 503. On the outer surface of the heat exchange coil 501, the heat exchange coil 501 is connected with a plurality of equidistantly distributed heat dissipating fins 504, wherein the heat dissipating fins 504 are used to increase the contact area between the heat exchanger 50 and the airflow in the exchange channel, thereby improving the cooling efficiency of the heat exchanger 50 on the airflow in the exchange channel; the equidistant distribution of the heat dissipating fins 504 is not only conducive to planning the installation and layout of the heat dissipating fins 504 on the surface of the heat exchange coil 501, but also can avoid mutual heat radiation between two adjacent heat dissipating fins 504 due to distance reasons to a certain extent, or the airflow in the exchange channel flows through the heat exchange When the heat exchanger 50 is arranged, due to the different spacings between the heat sink fins 504 at different positions, the flow air pressure generated by the airflow flowing through the gap spaces between different heat sink fins 504 is also different. The airflow may not flow through the gap space with a smaller spacing, and the airflow cannot generate heat exchange with the two heat sink fins 504 that form the smaller gap space, thereby reducing the heat dissipation contact area between the airflow in the flow exchange channel and the heat exchanger 50. The equidistant distribution of the heat sink fins 504 will not cause the above situation, and the probability of the gap space between any two adjacent heat sink fins 504 contacting the airflow in the flow exchange channel is the same, thereby, the airflow in the flow exchange channel can contact with any heat sink fin 504 in the heat exchanger 50 to complete the heat exchange.

[0049] Please refer back Figures 2 to 5In some embodiments, the energy storage cabinet 100 includes a plurality of heat dissipation fans 2. Along the width direction of the energy storage cabinet 100, at least one heat dissipation fan 2 is installed on both opposite side walls of the cabinet body 11. Along the height direction of the energy storage cabinet 100, at least two heat dissipation fans 2 are installed on one side wall of the cabinet body 11. The simultaneous operation of the plurality of heat dissipation fans 2 can accelerate the flow speed between the gas in the cabinet space 110 and the gas in the external space, thereby improving the heat exchange rate of the energy storage cabinet 100 and facilitating the rapid heat dissipation of the energy storage cabinet 100.

[0050] Please refer to Figure 1 , Figure 5 , Figure 6 and Figure 8 In some embodiments, the energy storage cabinet 100 includes a mounting plate 12, which is located in the cabinet space 110 and is separated from the two side walls of the cabinet space 110; the energy storage cabinet 100 also includes a plurality of electrical components (not shown) electrically connected to an external power supply, and the electrical components (not shown) are connected to the mounting plate 12.

[0051] It should be understood that electrical components refer to components such as voltage stabilizers, various voltage and power measurement devices, etc. Electrical components need to be Figure 1 The external power supply is connected to realize the electrical connection between the energy storage carrier and the external power supply.

[0052] Specifically, the mounting plate 12 of the energy storage cabinet 100 provides mounting positions 117 for electrical components, and also divides the space 110 in the cabinet into multiple parts. Thus, in order to facilitate the electrical connection between the energy storage carrier and the space 110 in the cabinet, electrical components can be installed at multiple positions on the mounting plate 12, so as to facilitate the electrical connection operation of the energy storage carriers placed in different mounting positions 117. In addition, the mounting plate 12 also blocks the heat exchange between different parts of the space 110 in the cabinet on both sides of the mounting plate 12 to a certain extent. Moreover, because the mounting plate 12 divides the space 110 in the cabinet into multiple parts, the mounting plate 12 further plans the space 110 in the cabinet, and the commutation path of the commutation channel formed by the heat dissipation fan 2 can be shortened due to the obstruction of the mounting plate 12. When the output power of the heat dissipation fan 2 is the same, the short-distance commutation channel can form a greater wind force, thereby forming a better heat dissipation effect.

[0053] Please refer to Figure 5 and Figure 6In some embodiments, in order to correspond to the position and number of the heat dissipation fans 2, the cooling mechanism 5 of the energy storage cabinet 100 is provided with a plurality of cooling components 51, wherein one cooling fan 2 is provided with a corresponding cooling component 51, and in any cooling component 51, the refrigerant circulation system 520 includes an input pipe 514, an output pipe 515, an air pressure balance pipe 517 and a pump body 516, and the pump body 516 is electrically connected to the power supply 200 and immersed in the refrigerant 512; the heat exchanger 50 includes an input port 502 and an output port 503. 03, one end of the input pipe 514 is connected to the input port 502, and the other end is plugged into the pump body 516; one end of the output pipe 515 is connected to the output port 503, and the other end extends into the refrigerant space 511; the volume of the refrigerant 512 is smaller than the volume of the refrigerant space 511; the cooling component 51 also includes an air pressure balance pipe 517, in the refrigerant space 511, one end of the air pressure balance pipe 517 is inserted into the refrigerant space 511, and the other end is located in the cabinet space 110, and the end of the air pressure balance pipe 517 is far away from the refrigerant 512.

[0054] In this way, any heat dissipation fan 2 is provided with a corresponding cooling assembly 51 , thereby improving the cooling performance of the cooling mechanism 5 on the heat dissipation fan 2 , and further improving the overall heat dissipation effect of the energy storage cabinet 100 .

[0055] Please refer to Figure 8 and Fig. 9 In other embodiments, the cooling assembly 51 includes a plurality of heat exchangers 50, and the plurality of heat exchangers 50 share the same box 510, which can be referred to Figure 8 The box body 510 is disposed between the multiple heat exchangers 50 to provide refrigerant 512 to the multiple heat exchangers 50. In this way, the proportion of the box body 510 to the volume of the cabinet space 110 is reduced, so that the cabinet space 110 has more volume to place the energy storage carrier, thereby improving the energy storage performance of the energy storage cabinet 100.

[0056] Please refer to Fig. 9 Specifically, a plurality of refrigerant circulation systems 520 are provided in the box body 510, and any refrigerant circulation system 520 includes an input pipe 514, an output pipe 515 and a pump body 516. The pump body 516 is electrically connected to the power supply 200 and immersed in the refrigerant 512; the heat exchanger 50 includes an input port 502 and an output port 503, one end of the input pipe 514 is connected to the input port 502, and the other end is plugged into the pump body 516; one end of the output pipe 515 is connected to the output port 503, and the other end extends into the refrigerant space 511, and the pump body 516 is used to provide the kinetic energy required for the movement of the refrigerant 512, so that the refrigerant 512 can circulate and move, thereby improving the cooling effect of the cooling mechanism 5 on the heat dissipation fan 2.

[0057] Among them, because the end of the output pipe 515 is not immersed in the refrigerant 512, when the air pressure of the refrigerant 512 changes and part of the refrigerant circulation system 520 is no longer needed, the heat exchanger 50 corresponding to the refrigerant circulation system 520 can be removed to use the output pipe 515 corresponding to the refrigerant circulation system 520 as an air pressure balance pipe 517 to balance the internal and external air pressures of the box 510.

[0058] Further, based on the above embodiment, the refrigerant circulation system 520 may also include Figure 7 The air pressure balance pipe 517 is used to regulate the air pressure inside the refrigerant space 511 to ensure the movement effect of the refrigerant 512.

[0059] Please refer to Figures 2 to 6 In some embodiments, the cabinet body 11 includes a cabinet body 111 and a cabinet top box 112 connected to each other, the cabinet door 10 is connected to the cabinet body 111, and the cabinet top box 112 is provided with an exhaust port 113; the cabinet top box 112 includes a first space 114, the cabinet body 111 includes a second space 115, the first space 114 is connected to the second space 115 to form an inner cabinet space 110, the mounting plate 12 is located in the second space 115, or the mounting plate 12 is located in the first space 114 and the second space 115.

[0060] Specifically, when the temperature of the space 110 in the cabinet rises, the heated gas will rise due to expansion. In this embodiment, part of the heated gas can rise to the first space 114 and then be discharged from the exhaust port 113; other heated gases can exchange heat with the airflow in the exchange channel formed by the operation of the heat dissipation fan 2 in the second space 115 (a small part can exchange heat with the heat exchanger 50) to reduce the temperature of the space 110 in the cabinet. In this way, by improving the physical structure of the cabinet body 11, the heat dissipation performance of the cabinet can be further improved.

[0061] Furthermore, please combine Figure 1 In some embodiments, the energy storage cabinet 100 further includes a plurality of Figure 1 The temperature sensor 6 shown, multiple temperature sensors 6 are spaced apart and distributed at multiple positions in the second space 115; the controller 3 is electrically connected to the temperature sensor 6, and the head of the heat dissipation fan 2 is movably connected to the cabinet body 11. The controller 3 adjusts the working parameters of the heat dissipation fan 2 and the position of the head of the heat dissipation fan 2 according to the temperature value collected by the temperature sensor 6.

[0062] Specifically, when the temperature value collected by the temperature sensor 6 is a first temperature value, the controller 3 regulates the heat dissipation fan 2 to a first working parameter according to the first temperature value, and the head of the heat dissipation fan 2 moves to a fourth position relative to the cabinet body 11; when the temperature value collected by the temperature sensor 6 is a second temperature value, the controller 3 regulates the heat dissipation fan 2 to a second working parameter according to the second temperature value, and the head of the heat dissipation fan 2 moves to a fifth position relative to the cabinet body 11, wherein the first temperature value is higher than the second temperature value.

[0063] In this way, the temperature sensor 6 can monitor the temperature values ​​of the inner space 110 of the energy storage cabinet 100 at different positions in real time. Through the temperature value collected by the temperature sensor 6, the controller 3 can correspondingly adjust the working parameters of the heat dissipation fan 2 (including wind force, wind speed, air outlet direction, etc.), so that the heat dissipation fan 2 can perform heat dissipation operations at different positions in a targeted manner. Combined with the monitoring of the opening and closing state of the cabinet door 10 of the energy storage cabinet 100 by the opening and closing sensor 4 in the aforementioned embodiment, the heat dissipation performance of the energy storage cabinet 100 is improved as a whole. At the same time, excessive energy consumption caused by excessive operation of the heat dissipation fan 2 is avoided. Therefore, more energy can be stored in the energy storage carrier after being converted, further improving the energy storage effect of the energy storage cabinet 100.

[0064] It should be noted that in the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by this application.

[0065] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An energy storage cabinet, characterized in that: include: A cabinet, the cabinet comprising a cabinet door and a cabinet body connected to each other, the cabinet door having a first position and a second position relative to the cabinet body, when the cabinet door is located at the first position, the inner space of the cabinet body is isolated from the outer space of the cabinet body; when the cabinet door is located at the second position, the inner space of the cabinet body is connected to the outer space of the cabinet body; A heat dissipation fan, the heat dissipation fan being installed on the side wall of the cabinet body; the space inside the cabinet and the space outside the cabinet body form a flow exchange channel through the operation of the heat dissipation fan; A controller, the controller being electrically connected to a power supply of the energy storage cabinet and the heat dissipation fan; and An opening and closing sensor is located in the space inside the cabinet and is electrically connected to the controller; when the cabinet door is located at the first position, the opening and closing sensor collects a first opening and closing state, and the controller controls the cooling fan to be in a first operating state according to the first opening and closing state; when the cabinet door is located at the second position, the opening and closing sensor collects a second opening and closing state, and the controller controls the cooling fan to be in a second operating state according to the second opening and closing state.

2. The energy storage cabinet according to claim 1, characterized in that: The energy storage cabinet also includes a cooling mechanism, which includes a connected heat exchanger and a cooling component, and the heat exchanger and the cooling component are both located in the cabinet space, wherein the heat exchanger is located on the flow path of the exchange channel, and the heat exchanger can exchange heat with the cooling component.

3. The energy storage cabinet according to claim 2, characterized in that: The cooling assembly comprises a box body and a refrigerant circulation system, the box body is provided with a refrigerant space, and the refrigerant is contained in the refrigerant space; The refrigerant circulation system includes an input pipe, an output pipe and a pump body, the pump body is electrically connected to the power supply and immersed in the refrigerant; the heat exchanger includes an input port and an output port, one end of the input pipe is connected to the input port, and the other end is plugged into the pump body; one end of the output pipe is connected to the output port, and the other end extends into the refrigerant space.

4. The energy storage cabinet according to claim 3, characterized in that: The volume of the refrigerant is smaller than the volume of the refrigerant space; the cooling component also includes an air pressure balance pipe, in the refrigerant space, one end of the air pressure balance pipe is inserted into the refrigerant space, and the other end is located in the cabinet space, and the end of the air pressure balance pipe is away from the refrigerant.

5. The energy storage cabinet according to claim 4, characterized in that: The cooling assembly further comprises a power supply and a cooler, wherein the cooler is electrically connected to the power supply; The bottom of the box body is concave to form a first concave portion, the power supply component is located in the first concave portion, and the power supply component is electrically connected to the power supply.

6. The energy storage cabinet according to any one of claims 3 to 5, characterized in that: The heat exchanger comprises a heat exchange coil, the heat exchange coil is provided with the input port and the output port, and a plurality of equidistantly distributed heat dissipating fins are connected to the outer surface of the heat exchange coil.

7. The energy storage cabinet according to any one of claims 1 to 6, characterized in that: The energy storage cabinet includes a plurality of the heat dissipation fans. Along the width direction of the energy storage cabinet, at least one heat dissipation fan is installed on the opposite side walls of the cabinet body. Along the height direction of the energy storage cabinet, at least two heat dissipation fans are installed on one side wall of the cabinet body.

8. The energy storage cabinet according to claim 7, characterized in that: The energy storage cabinet comprises a mounting plate, which is located in the cabinet inner space and spaced apart from two side walls of the cabinet inner space; The energy storage cabinet further includes a plurality of electrical components electrically connected to the external power source, and the electrical components are connected to the mounting plate.

9. The energy storage cabinet according to claim 7 or 8, characterized in that: The cabinet body includes a cabinet main body and a cabinet top box connected to each other, the cabinet door is connected to the cabinet main body, and the cabinet top box is provided with an exhaust port; the cabinet top box includes a first space, the cabinet main body includes a second space, the first space is connected to the second space to form the space inside the cabinet, the mounting plate is located in the second space, or the mounting plate is located in the first space and the second space.

10. The energy storage cabinet according to claim 9, characterized in that: The energy storage cabinet further includes a plurality of temperature sensors, and the plurality of temperature sensors are distributed at intervals at a plurality of positions in the second space; The controller is electrically connected to the temperature sensor, and the head of the heat dissipation fan is movably connected to the cabinet body. The controller adjusts the working parameters of the heat dissipation fan and the position of the head of the heat dissipation fan according to the temperature value collected by the temperature sensor.

11. An energy storage system, characterized in that: The energy storage system comprises a plurality of energy storage cabinets as described in any one of claims 1-10.

Images