Energy storage cabinet and energy storage system

Abstract

The utility model provides an energy storage cabinet and an energy storage system. The energy storage cabinet comprises a battery cabin used for accommodating electronic components; the liquid cooling unit is mounted on one side of the battery cabin and comprises a shell and a first heat exchange part, the shell is provided with a heat exchange cabin, the first heat exchange part is located in the heat exchange cabin, the shell is further provided with an air inlet and an air outlet which are communicated with the heat exchange cabin, a fan is arranged at the air outlet, and the energy storage cabinet is provided with a fire fighting access used for communicating the battery cabin with the heat exchange cabin; the air inlet and the fire fighting access are each provided with a switch component capable of controlling on-off of airflow, the switch component at the fire fighting access is constructed to be capable of closing or communicating the battery cabin and the heat exchange cabin, and the switch component at the air inlet is constructed to be capable of opening or closing the air inlet. The energy storage cabinet can improve the energy density of the energy storage system.

Description

TECHNICAL FIELD

[0001] The utility model relates to energy storage system technical field, specifically, relate to a kind of energy storage cabinet and energy storage system. BACKGROUND

[0002] Energy storage system includes battery and power conversion component etc.. When energy storage system works, battery and power conversion component can generate a large amount of heat, and liquid cooling unit is needed for battery and power conversion component heat dissipation. At the same time, improper use of chemical battery can cause thermal runaway, and then combustion or even explosion occurs, therefore, energy storage system needs to be equipped with necessary fire-fighting device, for example, fire exhaust fan (for the combustible gas generated by thermal runaway is discharged from system) etc..

[0003] However, in the prior art, the fire-fighting device and the liquid cooling unit independently arranged will occupy the space of the energy storage system, thereby reducing the energy density of the energy storage system. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide an energy storage cabinet and energy storage system, which can improve the energy density of the energy storage system.

[0005] In order to achieve the above purpose, the utility model provides an energy storage cabinet, which comprises: a battery cabin for accommodating electronic components; a liquid cooling unit installed on one side of the battery cabin, the liquid cooling unit comprising a shell and a first heat exchange part, the shell having a heat exchange chamber, the first heat exchange part being located in the heat exchange chamber, the shell further being provided with an air inlet and an air outlet communicating with the heat exchange chamber, a fan being provided at the air outlet, and a fire-fighting passage being provided on the energy storage cabinet for communicating the battery cabin and the heat exchange chamber.

[0006] Further, the fire-fighting passage, the heat exchange chamber and the air outlet are sequentially arranged along the extension direction of the fire-fighting passage.

[0007] Further, the air inlet, the first heat exchange part and the air outlet are sequentially arranged along a direction perpendicular to the extension direction of the fire-fighting passage, and the fire-fighting passage and the air outlet are located on the same side of the first heat exchange part.

[0008] Further, the air outlet is arranged opposite to the fire-fighting passage.

[0009] Further, the energy storage cabinet further comprises: a detection member located in the battery cabin, the detection member being used for detecting combustible gas; and a controller provided in the battery cabin, the detection member and the two switch components being connected to the controller.

[0010] Further, the shell further has a venting cabin located at one side of the heat exchange cabin, and the battery cabin and / or the shell is provided with a communication hole, and the inside of the battery cabin is communicated with the venting cabin through the communication hole, so that the battery cabin is vented through the venting cabin.

[0011] Further, the liquid cooling unit further comprises a venting assembly installed on the shell, and the venting assembly and the battery cabin are located at different sides of the venting cabin.

[0012] Further, the liquid cooling unit further comprises a partition member located in the shell to divide the shell into the venting cabin and the heat exchange cabin.

[0013] Further, the liquid cooling unit is installed on any one of the front side, the rear side, the top, the left side and the right side of the battery cabin.

[0014] According to another aspect of the utility model, the utility model provides a kind of energy storage system, including the energy storage cabinet of above and the battery and / or power conversion assembly located in battery cabin.

[0015] The technical scheme of the utility model is applied, the fire fighting passage for communicating battery cabin and heat exchange cabin is set, and the switch component capable of controlling airflow on-off is provided at air inlet and fire fighting passage, the opening and closing of two switch components are controlled to make energy storage cabinet have heat dissipation working mode and fire-fighting exhaust mode, so that, using one fan can make energy storage cabinet have heat dissipation working mode that air inlet is communicated with air outlet, and fire-fighting exhaust mode that battery cabin is communicated with air outlet through fire fighting passage, so that energy storage cabinet has the function of heat dissipation and fire-fighting exhaust, i.e. using the fan of liquid cooling unit for heat dissipation as fire-fighting exhaust device, to avoid additional setting fire-fighting exhaust device, to improve the energy density of energy storage system, and the reuse of fan can also reduce the production cost of energy storage cabinet. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings accompanying the specification of this application form a part thereof, serve to provide further understanding of the utility model, and together with the exemplary embodiments of the utility model and their description serve to explain the utility model, and do not constitute improper limitation to the utility model. In the drawings:

[0017] Figure 1 The structure schematic view of the embodiment of the energy storage cabinet of the utility model is shown;

[0018] Figure 2 The exploded structure schematic view of the energy storage cabinet of Figure 1 is shown;

[0019] Figure 3 The structure schematic view of the liquid cooling unit of the energy storage cabinet of Figure 1 is shown;

[0020] Figure 4a sectional view of the energy storage cabinet of Figure 1 ;

[0021] Figure 5 a sectional view of the energy storage cabinet of Figure 4 ;

[0022] Figure 6 a sectional view of the energy storage cabinet of Figure 1 .

[0023] Wherein, the above drawings include the following reference signs:

[0024] 10, battery cabin; 20, liquid cooling unit; 21, heat exchange cabin; 22, air inlet; 23, air outlet; 25, fire fighting passage; 26, explosion venting cabin; 27, communication hole; 28, partition member; 50, explosion venting assembly; 51, first heat exchange part. DETAILED DESCRIPTION

[0025] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with embodiments.

[0026] As Figures 1 to 6 shown, the embodiments of the present application provide an energy storage cabinet. The energy storage cabinet includes a battery cabin 10 and a liquid cooling unit 20. Wherein, the battery cabin 10 is used for accommodating electronic components; the liquid cooling unit 20 is installed on one side of the battery cabin 10, the liquid cooling unit 20 includes a shell and a first heat exchange part 51, the shell has a heat exchange cabin 21, the first heat exchange part 51 is located in the heat exchange cabin 21, the shell is further provided with an air inlet 22 and an air outlet 23 which are in communication with the heat exchange cabin 21, a fan is arranged at the air outlet 23, the energy storage cabinet is provided with a fire fighting passage 25 for communicating the battery cabin 10 and the heat exchange cabin 21; the air inlet 22 and the fire fighting passage 25 are both provided with a switch part capable of controlling the on-off of airflow, the switch part at the fire fighting passage 25 is configured to be able to close or communicate the battery cabin 10 and the heat exchange cabin 21, the switch part at the air inlet 22 is configured to be able to open or close the air inlet 22.

[0027] In the technical solution, the fire-fighting passage 25 for connecting the battery cabin 10 and the heat exchange cabin is arranged, and the switch component capable of controlling the air flow is arranged at the air inlet 22 and the fire-fighting passage 25. The switch components are controlled to open and close, so that the energy storage cabinet has the heat dissipation working mode and the fire-fighting exhaust mode. Thus, the energy storage cabinet has the heat dissipation and fire-fighting exhaust functions by using the fan for heat dissipation as the fire-fighting exhaust device, so that the fire-fighting exhaust device is not additionally arranged, the energy density of the energy storage system is improved, and the production cost of the energy storage cabinet is reduced.

[0028] Specifically, in the embodiment of the utility model, the liquid cooling unit 20 further comprises a liquid cooling loop and a second heat exchange part, the first heat exchange part and the second heat exchange part are arranged on the liquid cooling loop, and the second heat exchange part is located in the battery cabin 10, wherein the first heat exchange part 51 includes but is not limited to a condenser, and the second heat exchange part includes but is not limited to an evaporator.

[0029] Preferably, in the embodiment of the utility model, the switch component is a butterfly valve or a butterfly valve.

[0030] Specifically, as shown in Figure 2 and Figure 3 In the embodiment of the utility model, the liquid cooling unit 20 is installed on the top of the battery cabin 10, the battery cabin 10 has a top plate, the shell has a bottom plate, the top plate of the battery cabin 10 is provided with a fire-fighting passage 25, the bottom plate of the shell is provided with a fire-fighting passage 25, and the two fire-fighting passages 25 are communicated to connect the battery cabin 10 and the heat exchange cabin 21. The switch component is arranged in any one of the two fire-fighting passages 25.

[0031] In one embodiment, the battery cabin 10 can also have a top plate, and the bottom of the shell is open. In this way, only the fire-fighting passage 25 is arranged on the top plate of the battery cabin 10; or the shell has a bottom plate, and the top of the battery cabin 10 is open. In this way, only the fire-fighting passage 25 is arranged on the bottom plate of the shell.

[0032] It should be noted that in the embodiment of the utility model, the liquid cooling loop is arranged on the battery cabin 10 and the shell.

[0033] Specifically, in the embodiment of the utility model, when the energy storage cabinet is in the heat dissipation working mode, the switch component at the air inlet 22 is opened, and the switch component at the fire-fighting passage 25 is closed; when the energy storage cabinet is in the fire-fighting exhaust mode, the switch component at the air inlet 22 is closed, and the switch component at the fire-fighting passage 25 is opened.

[0034] In the technical solution, asFigure 5 As shown, when the energy storage cabinet is in heat dissipation mode, i.e., the battery and power conversion components are in normal working condition, air can enter the heat exchange chamber 21 through the air inlet 22 and then flow out through the air outlet 23, so as to dissipate the heat of the first heat exchange section 51 or other parts of the heat exchange chamber 21 to the ambient air, thereby realizing heat exchange between the liquid-cooled unit and the air side; as Figure 6 As shown, when the battery experiences thermal runaway and combustion, the energy storage cabinet can be put into fire exhaust mode. In this way, the thermal runaway airflow in the battery compartment 10 can be discharged sequentially through the fire passage 25, the heat exchange chamber 21 and the air outlet 23 to achieve the function of fire exhaust.

[0035] like Figure 6 As shown in the embodiment of this utility model, the fire passage 25, the heat exchange chamber 21, and the air outlet 23 are arranged sequentially along the extension direction of the fire passage 25. In this way, the path of the thermal runaway airflow can be shortened, so that the thermal runaway gas in the battery compartment 10 can be discharged quickly.

[0036] like Figure 5 As shown in the embodiment of this utility model, the air inlet 22, the first heat exchange section 51 and the air outlet 23 are arranged in sequence along a direction perpendicular to the extension direction of the fire passage 25, and the fire passage 25 and the air outlet 23 are located on the same side of the first heat exchange section 51.

[0037] With the above configuration, on the one hand, the air entering the heat exchange chamber 21 through the air inlet 22 can pass through the first heat exchange section 51 so that the air and the first heat exchange section 51 can exchange heat, thereby dissipating the first heat exchange section 51 to the ambient air; on the other hand, it can prevent thermal runaway gas from passing through the first heat exchange section 51 during the discharge process, thereby reducing the probability of the first heat exchange section 51 being damaged.

[0038] like Figure 5 As shown, in an embodiment of this utility model, the air outlet 23 and the fire escape 25 are positioned directly opposite each other.

[0039] With the above settings, when the battery experiences thermal runaway and combustion, the thermal runaway airflow in the battery compartment 10 can be directly discharged from the air outlet 23 through the fire escape 25, thereby improving the fire ventilation efficiency.

[0040] Specifically, in this embodiment of the present invention, the energy storage cabinet further includes: a detection component located inside the battery compartment 10, used to detect combustible gas; and a controller located in the battery compartment 10, with the detection component and two switching components all connected to the controller. Thus, when thermal runaway occurs in the battery of the battery compartment 10, the detection component detects the generation of combustible gas, and the controller closes the switching component at the air inlet 22 and opens the switching component at the fire escape 25, switching the energy storage unit into fire exhaust mode to expel the combustible gas from the battery compartment 10.

[0041] Preferably, in the embodiment of the utility model, the detection component is a combustible gas detector.

[0042] As shown in Figure 2 and Figure 3 , in the embodiment of the utility model, the shell further has a venting cabin 26 located at one side of the heat exchange cabin 21, the battery cabin 10 and / or the shell is provided with a communication hole 27, the inside of the battery cabin 10 is communicated with the venting cabin 26 through the communication hole 27, so that the battery cabin 10 is vented through the venting cabin 26. In this way, when the battery explodes, the pressure in the battery cabin 10 can be timely discharged through the communication hole 27 and the venting cabin 26, so as to avoid personnel injury.

[0043] Specifically, in the embodiment of the utility model, the liquid cooling circuit is provided with a compressor, a plate heat exchanger, a water pump and the like, and the above-mentioned components can be arranged in the heat exchange cabin 21 or the venting cabin 26.

[0044] Specifically, in the embodiment of the utility model, the side of the venting cabin 26 of the shell towards the battery cabin 10 is provided with a communication hole 27, the battery cabin 10 is provided with a communication hole 27, and the two communication holes 27 are communicated, so as to realize the communication between the venting cabin 26 and the inside of the battery cabin 10.

[0045] Specifically, as shown in Figure 2 and Figure 3 , in the embodiment of the utility model, the liquid cooling unit 20 is installed at the top of the battery cabin 10, the battery cabin 10 has a top plate, the shell has a bottom plate, the top plate of the battery cabin 10 is provided with a communication hole 27, the bottom plate of the shell is provided with a communication hole 27, and the two communication holes 27 are communicated, so as to realize the communication between the venting cabin 26 and the inside of the battery cabin 10.

[0046] In one embodiment, the battery cabin 10 can also have a top plate, and the bottom of the shell is open, so that only the communication hole 27 is arranged on the top plate of the battery cabin 10; or the shell has a bottom plate, and the top of the battery cabin 10 is open, so that only the communication hole 27 is arranged on the bottom plate of the shell.

[0047] As shown in Figure 3 , in the embodiment of the utility model, the liquid cooling unit 20 further comprises a venting assembly 50 installed on the shell, and the venting assembly 50 and the battery cabin 10 are located at different sides of the venting cabin 26. In this way, the venting effect can be improved.

[0048] Specifically, in the embodiment of the utility model, the explosion venting assembly 50 and the battery cabin 10 are located at different sides of the explosion venting cabin 26, that is, the explosion venting assembly 50 can be installed at any side of the explosion venting cabin 26 except the installation side, and the installation side refers to the side where the explosion venting cabin 26 is connected with the battery cabin 10.

[0049] Preferably, in the embodiment of the utility model, the explosion venting assembly 50 is located at the side of the explosion venting cabin 26 away from the installation side, that is, the explosion venting assembly 50 is located at the top of the explosion venting cabin 26. Figure 3

[0050] In one embodiment, the explosion venting assembly 50 can also not be provided, and the shell is provided with an explosion venting area, and the shell wall thickness at the position of the explosion venting area is smaller than the wall thickness at other positions to realize explosion venting; wherein the explosion venting area and the battery cabin 10 are located at different sides of the explosion venting cabin 26.

[0051] As shown in Figure 3 , in the embodiment of the utility model, the liquid cooling unit 20 further comprises a partition member 28, and the partition member 28 is located in the shell to divide the shell into the explosion venting cabin 26 and the heat exchange cabin 21. In this way, processing is facilitated.

[0052] Preferably, in the embodiment of the utility model, the partition member 28 is a partition plate.

[0053] It should be noted that in the embodiment of the utility model, the partition plate is used to isolate the explosion venting cabin 26 and the heat exchange cabin 21, and the partition plate is sealingly connected with the inner wall of the shell to realize sealed isolation between the explosion venting cabin 26 and the heat exchange cabin 21.

[0054] Specifically, in the embodiment of the utility model, the liquid cooling unit 20 is installed at any one of the front side, the rear side, the top, the left side and the right side of the battery cabin 10.

[0055] Preferably, as shown in Figure 1 , in the embodiment of the utility model, the liquid cooling unit 20 is installed at the top of the battery cabin 10.

[0056] The embodiment of the utility model further provides an energy storage system, which comprises the above-mentioned energy storage cabinet and a battery and / or a power conversion assembly located in the battery cabin 10.

[0057] Preferably, in the embodiment of the utility model, the battery and / or the power conversion assembly form the above-mentioned electronic element.

[0058] The above-mentioned energy storage system has all the advantages of the above-mentioned energy storage cabinet, which will not be repeated here. ​

[0059] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects: by setting the fire fighting channel for connecting the battery cabin and the heat exchange cabin, and setting the switch component capable of controlling the air flow on and off at the air inlet and the fire fighting channel, the energy storage cabinet can have the heat dissipation working mode and the fire fighting exhaust mode by controlling the opening and closing of the two switch components, so that the energy storage cabinet can have the heat dissipation working mode of the air inlet and the air outlet being communicated, and the fire fighting exhaust mode of the battery cabin being communicated with the air outlet through the fire fighting channel, so that the energy storage cabinet has the functions of heat dissipation and fire fighting exhaust, that is, the fan originally used for heat dissipation of the liquid cooling unit can be used as the fire fighting exhaust device, thereby avoiding the additional setting of the fire fighting exhaust device, so as to improve the energy density of the energy storage system, and the reuse of the fan can also reduce the production cost of the energy storage cabinet.

[0060] The above only describes the preferred embodiments of the utility model and is not used to limit the utility model. For those skilled in the art, the utility model can have various changes and variations. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An energy storage cabinet, characterized by, The application relates to a battery cabin (10) for accommodating electronic components, a liquid cooling unit (20) mounted on one side of the battery cabin (10), wherein the liquid cooling unit (20) comprises a shell and a first heat exchange part (51), the shell has a heat exchange cabin (21), the first heat exchange part (51) is located in the heat exchange cabin (21), air inlets (22) and air outlets (23) in communication with the heat exchange cabin (21) are further arranged on the shell, a fan is arranged at the air outlet (23), and a fire-fighting channel (25) for connecting the battery cabin (10) and the heat exchange cabin (21) is arranged on the energy storage cabinet. Switching parts capable of controlling air flow are arranged at the air inlets (22) and the fire-fighting channel (25), the switching part at the fire-fighting channel (25) is configured to be capable of closing or connecting the battery cabin (10) and the heat exchange cabin (21), and the switching part at the air inlet (22) is configured to be capable of opening or closing the air inlet (22). The fire-fighting channel (25), the heat exchange cabin (21) and the air outlet (23) are sequentially arranged along the extension direction of the fire-fighting channel (25). The air inlet (22), the first heat exchange part (51) and the air outlet (23) are sequentially arranged along a direction perpendicular to the extension direction of the fire-fighting channel (25), and the fire-fighting channel (25) and the air outlet (23) are located on the same side of the first heat exchange part (51).

2. The energy storage cabinet of claim 1, wherein, The air outlet (23) is arranged opposite to the fire-fighting channel (25).

3. The energy storage cabinet of claim 1, wherein, The energy storage cabinet further comprises:

4. The energy storage cabinet of claim 3, wherein, A detection component located in the battery cabin (10) and used for detecting combustible gas, 5. The energy storage cabinet of claim 1, wherein, A controller arranged in the battery cabin (10), and the detection component and the two switching parts are in control connection with the controller. The shell further has a blast venting cabin (26) located on one side of the heat exchange cabin (21), the battery cabin (10) and / or the shell is provided with a communication hole (27), the inside of the battery cabin (10) is in communication with the blast venting cabin (26) through the communication hole (27), so that the battery cabin (10) is vented through the blast venting cabin (26). The liquid cooling unit (20) further comprises a blast venting assembly (50) mounted on the shell, and the blast venting assembly (50) and the battery cabin (10) are located on different sides of the blast venting cabin (26).

6. The energy storage cabinet of any one of claims 1 to 5, wherein, The liquid cooling unit (20) further comprises a separation component (28) located in the shell, so as to separate the shell into the blast venting cabin (26) and the heat exchange cabin (21).

7. The energy storage cabinet of claim 6, wherein, The liquid cooling unit (20) is mounted on any one of the front side, the back side, the top, the left side and the right side of the battery cabin (10).

8. The energy storage cabinet of claim 6, wherein, The application further relates to an energy storage cabinet, a battery and / or a power conversion assembly in the battery cabin (10).

9. The energy storage cabinet of any one of claims 1 to 5, wherein, ​ 10. An energy storage system characterized by, ​

Images