Liquid cooling energy storage cabin

Abstract

The utility model provides a liquid cooling energy storage cabin. The liquid cooling energy storage cabin comprises a cabin body; the battery pack is arranged in the cabin body, the battery pack comprises a liquid cooling plate, a detector assembly and a fire interface are arranged in the battery pack, and the liquid cooling plate comprises an inlet and an outlet; the fire extinguishing device is communicated with the fire fighting interface in the battery pack through a fire fighting pipeline, and when a first preset condition is met, a fire extinguishing medium in the fire extinguishing device is introduced into the battery pack through the fire fighting pipeline; the liquid cooling device is communicated with the liquid cooling plate through a liquid cooling pipeline, the liquid cooling pipeline is communicated with the fire fighting pipeline, and when a second preset condition is met, a cooling medium in the liquid cooling device is introduced into the fire fighting pipeline through the liquid cooling pipeline and then is introduced into the battery pack through the fire fighting pipeline. According to the liquid cooling energy storage cabin provided by the invention, the temperature in the battery pack can be detected in time when a fire occurs, and the fire extinguishing efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrochemistry energy storage field, concretely relates to a liquid cooling energy storage cabin. BACKGROUND

[0002] At present, with the rise of electrochemistry energy storage installed capacity, the operation proportion of energy storage power station is increasing, and the safety of energy storage power station is paid more and more attention, and the fire-fighting scheme of power station is put forward higher and higher requirements.

[0003] At present, the fire-fighting of energy storage system mainly consists of cabin inlet and outlet fan, fire-fighting detector, fire-fighting host, fire extinguishing device, water fire-fighting pipeline, etc. The existing fire-fighting control scheme is that when the fire-fighting detector detects that the gas or smoke concentration reaches the preset value, the cabin inlet and outlet fan is opened, the combustible gas or smoke concentration is reduced, when the temperature reaches the preset value, the inlet and outlet fan is closed, and the fire extinguishing device is opened to extinguish the fire, if the fire cannot be extinguished, the external water fire-fighting is used to cool and extinguish the fire, the existing fire-fighting control scheme is that the liquid-cooled battery pack IP level is relatively high, and the fire-fighting detector is arranged outside the battery pack and cannot detect the real concentration of gas or smoke and temperature in the battery pack in time, when it can be detected, the thermal runaway has occurred, the external water fire-fighting needs to build a fire pool, if the site is limited, the water fire-fighting installation and implementation cannot be carried out, when the fire extinguishing device cannot extinguish the fire, the fire cannot be controlled. UTILITARIAN CONTENT

[0004] In order to overcome the defects in the prior art, the utility model embodiment provides a liquid cooling energy storage cabin, which can detect the temperature in the battery pack in time and improve the fire extinguishing efficiency.

[0005] In order to achieve the above purpose, the utility model adopts the technical scheme that:

[0006] The utility model discloses a kind of liquid cooling energy storage cabin, it is characterized in that, including:

[0007] Cabin body;

[0008] Battery pack, the battery pack is located in the cabin body, the battery pack includes liquid cooling plate, detector assembly and fire-fighting interface are equipped in the battery pack, the liquid cooling plate includes import and export;

[0009] Fire extinguishing device, the fire extinguishing device is communicated with the fire-fighting interface in the battery pack by fire-fighting pipeline, when reaching first preset condition, fire extinguishing medium in fire extinguishing device is introduced into battery pack by fire-fighting pipeline;

[0010] A liquid cooling device is in communication with the liquid cooling plate through a liquid cooling pipeline, the liquid cooling pipeline is in communication with the fire-fighting pipeline, when the second preset condition is reached, the cooling medium in the liquid cooling device is introduced into the battery pack through the liquid cooling pipeline and then introduced into the battery pack through the fire-fighting pipeline.

[0011] The technical scheme sets the detector assembly in the battery pack, so that the temperature in the battery pack can be detected in time even if the battery pack is high-grade, the fire-fighting pipeline and the liquid cooling pipeline are communicated, when the fire extinguishing device fails to successfully extinguish the fire, the cooling medium in the liquid cooling device can be introduced into the battery pack through the fire-fighting pipeline to extinguish the fire, even if the fire hydrant cannot be externally connected, the fire can still be extinguished, the fire extinguishing efficiency can be improved, and the fire loss can be reduced.

[0012] Further, the battery pack further comprises:

[0013] An air inlet device, the air inlet device comprises an air inlet fan, the air inlet fan is in communication with the battery pack through an air inlet pipeline,

[0014] An air outlet device, the air outlet device comprises an air outlet fan, the air outlet fan is in communication with the battery pack through an air outlet pipeline, when the third preset condition is reached, the air inlet fan and the air outlet fan are opened.

[0015] The battery pack is in communication with the air inlet fan and the air outlet fan through the air inlet pipeline and the air outlet pipeline, when the detector assembly detects that the gas or smoke concentration in the battery pack reaches the third preset condition, the gas or smoke in the battery pack can be removed by opening the air inlet fan and the air outlet fan, so that the explosion risk of the battery pack is reduced.

[0016] Further, the battery pack is provided with a first valve and a second valve, the first valve is in communication with the air inlet pipeline, the second valve is in communication with the air outlet pipeline, and the second valve is connected with a fan.

[0017] The first valve is arranged on the battery pack and in communication with the air inlet pipeline, and the second valve is arranged on the battery pack and in communication with the air outlet pipeline, in the first aspect, when the detector assembly detects that the gas or smoke in the battery pack reaches the third preset condition, the gas or smoke in the battery pack can be removed by opening the air inlet fan and the air outlet fan, so that the gas concentration in the battery pack is reduced and the explosion risk of the battery pack is reduced, and in the second aspect, when the gas concentration in the battery pack reaches the explosion value, the first valve and the second valve can be opened by the internal pressure, and the gas is discharged to the outside of the cabin through the air outlet pipeline, so that the explosion relief function is realized.

[0018] Further, a control device is further included, which is connected with the battery pack, the fire extinguishing device, the liquid cooling device, the air inlet device and the air outlet device, and is used for controlling the opening and closing of the first valve, the second valve, the air inlet fan and the air outlet fan according to the first value detected by the detector assembly, and controlling the opening and closing of the fire extinguishing device and the liquid cooling device according to the second value detected by the detector assembly.

[0019] Further, a plurality of battery clusters are arranged in the cabin, each of the battery clusters is formed by a plurality of battery packs connected by connecting lines, and each of the battery packs is connected with an air inlet pipeline, an air outlet pipeline, a fire extinguishing pipeline and a liquid cooling pipeline. The plurality of battery clusters and the air inlet pipeline, the air outlet pipeline, the fire extinguishing pipeline and the liquid cooling pipeline connected with each of the battery packs are controlled by the control device.

[0020] Further, the fire extinguishing pipeline includes a main fire extinguishing pipeline in communication with the fire extinguishing device, a first fire extinguishing pipeline in communication with the main fire extinguishing pipeline at one end and with a fire extinguishing interface in the battery pack at the other end, and a first electromagnetic valve arranged on the main fire extinguishing pipeline.

[0021] After the detector assembly detects that the temperature in the battery pack reaches a first preset condition, the control device controls the first electromagnetic valve to open, and opens the fire extinguishing device to deliver fire extinguishing medium to the battery pack through the fire extinguishing pipeline to extinguish the fire.

[0022] Further, the fire extinguishing pipeline further includes a second fire extinguishing pipeline in communication with the liquid cooling pipeline at one end and with the fire extinguishing pipeline at the other end, and a second electromagnetic valve arranged on the second fire extinguishing pipeline.

[0023] When the fire extinguishing device fails to extinguish the fire, the control device controls the second electromagnetic valve to open according to a second preset condition, and introduces the cooling medium in the liquid cooling device into the fire extinguishing pipeline through the second fire extinguishing pipeline and then delivers the cooling medium to the battery pack to extinguish the fire, so as to improve the fire extinguishing efficiency. When the cooling medium in the liquid cooling device is used up, the second electromagnetic valve is closed.

[0024] Further, the liquid cooling pipeline includes a first liquid cooling pipeline in communication with the liquid cooling device, a first secondary liquid cooling pipeline in communication with the first liquid cooling pipeline at one end and with an inlet of the liquid cooling plate at the other end, and a second secondary liquid cooling pipeline in communication with the second liquid cooling pipeline at one end and with an outlet of the liquid cooling plate at the other end.

[0025] The first liquid cooling pipeline, the second liquid cooling pipeline, the first secondary liquid cooling pipeline and the second secondary liquid cooling pipeline are arranged in the energy storage cabin and can communicate with a plurality of battery packs in a plurality of battery clusters.

[0026] Further, the air inlet pipeline includes a main air inlet pipeline in communication with the air inlet fan, and a secondary air inlet pipeline in communication with the main air inlet pipeline at one end and with the first valve at the other end.

[0027] Further, the exhaust pipeline comprises a main exhaust pipeline communicated with the exhaust fan, a secondary exhaust pipeline communicated with the main exhaust pipeline at one end and communicated with the second valve at the other end.

[0028] The energy storage cabin is internally provided with a plurality of battery clusters, and the main air inlet pipeline, the secondary air inlet pipeline, the main exhaust pipeline and the secondary exhaust pipeline can communicate a plurality of battery packs in the plurality of battery clusters.

[0029] Further, the cabin body is provided with a fire-fighting port communicated with a fire hydrant outside the cabin body. When the cooling medium in the liquid cooling device is used up and still cannot successfully extinguish the fire, the fire-fighting port is externally connected to the fire hydrant to extinguish the fire.

[0030] Due to the use of the above technical solutions, the present application has the following advantages compared with the prior art:

[0031] 1. The detector assembly is arranged in the battery pack, so that the temperature and the concentration of gas or smoke in the battery pack can be detected in time even if the battery pack is high-grade, and the risk of fire is reduced.

[0032] 2. The fire-fighting pipeline and the liquid cooling pipeline are communicated, so that in the case that the fire extinguishing device cannot extinguish the fire, the cooling medium in the liquid cooling device can be introduced into the battery pack through the fire-fighting pipeline to extinguish the fire. Even if the fire hydrant cannot be externally connected, the fire can still be extinguished, the fire extinguishing efficiency is improved, and the fire loss is reduced.

[0033] 3. The first valve is arranged on the battery pack and communicated with the air inlet device, and the second valve is arranged and communicated with the exhaust device. First, when the detector assembly detects that the concentration of gas or smoke in the battery pack reaches the third preset condition, the gas or smoke in the battery pack can be removed by opening the air inlet device and the exhaust device, so as to reduce the concentration of gas in the battery pack and reduce the risk of explosion of the battery pack. Second, when the concentration of gas in the battery pack reaches the explosion value, the first valve and the second valve can be opened by the internal pressure, and the gas is exhausted to the outside of the cabin through the exhaust pipeline, so as to realize the function of explosion relief.

[0034] In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are only some embodiments of the present application, and not all embodiments. In addition, the drawings of the present application are only simple schematic illustrations, and not actual size descriptions. Prior declaration.

[0036] Figure 1 is a structural schematic diagram of a liquid-cooled energy storage cabin provided by the embodiment of the present application;

[0037] Figure 2 is a structural schematic diagram of a battery cluster provided by the embodiment of the present application;

[0038] Figure 3 is a structural schematic diagram of a battery pack provided by the embodiment of the present application.

[0039] The above drawings are marked as follows: 1, cabin body; 2, battery pack; 201, liquid cooling plate; 202, first valve; 203, second valve; 204, detector assembly; 205, fire-fighting interface; 206, inlet; 207, outlet; 208, connecting line; 3, fire extinguishing device; 4, liquid cooling device; 5, control device; 6, main fire-fighting pipeline; 7, first fire-fighting pipeline; 8, second fire-fighting pipeline; 9, first electromagnetic valve; 10, second electromagnetic valve; 11, first liquid cooling pipeline; 12, first liquid cooling pipeline; 13, second liquid cooling pipeline; 14, second liquid cooling pipeline; 15, air inlet fan; 16, main air inlet pipeline; 17, secondary air inlet pipeline; 18, air outlet fan; 19, main air outlet pipeline; 20, secondary air outlet pipeline; 21, fire-fighting port. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. In addition, the drawings of the present application are only simple schematic illustrations, and not actual size descriptions. Prior declaration.

[0041] In the utility model, it needs to be explained that, the terms "upper", "lower", "inner", "outer", "forward", "backward", "between", "close to", "far away" and the like indicate the position or location relationship based on the position or location relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the utility model. It also needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected, can be directly connected, or indirectly connected. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0042] It should be understood that although the terms "first", "second", "third" and the like can be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another component, or one signal from another signal. In addition, the term "or" used herein can include any one or more combinations of the associated listed items.

[0043] Referring to Figures 1-3 The embodiment of the application provides a liquid-cooled energy storage cabin, which comprises a cabin body 1, a battery pack 2, a fire extinguishing device 3 and a liquid cooling device 4, wherein the battery pack 2 is arranged in the cabin body 1, the battery pack 2 comprises a liquid cooling plate 201, the battery pack 2 is provided with a detector assembly 204 and a fire-fighting interface 205, the liquid cooling plate 201 comprises an inlet 206 and an outlet 207, the fire extinguishing device 3 is communicated with the fire-fighting interface 205 in the battery pack 2 through a fire-fighting pipeline, when a first preset condition is reached, the fire extinguishing medium in the fire extinguishing device 3 is introduced into the battery pack 2 through the fire-fighting pipeline for fire extinguishing, the liquid cooling device 4 is communicated with the liquid cooling plate 201 through a liquid cooling pipeline, the liquid cooling pipeline is communicated with the fire-fighting pipeline, when a second preset condition is reached, the cooling medium in the liquid cooling device 4 is introduced into the fire-fighting pipeline through the liquid cooling pipeline, and then is introduced into the battery pack 2 through the fire-fighting pipeline, so that the cooling medium in the liquid cooling device 4 is used for fire extinguishing.

[0044] The first preset condition is that the temperature in the battery pack 2 reaches a preset threshold value, and the second preset condition at least comprises that the temperature in the battery pack 2 reaches the preset threshold value or the fire extinguishing medium in the fire extinguishing device 3 is used up.

[0045] By the above structure, the cooling medium in the liquid cooling device 4 can be sent into the battery pack 2 through the fire-fighting pipeline to extinguish the fire when the fire extinguishing device 3 cannot extinguish the fire, even in the case of no external fire hydrant, the fire can still be extinguished, the fire extinguishing efficiency can be improved, and the fire loss can be reduced.

[0046] As shown in Figure 1 , the cabin 1 is provided with a plurality of battery clusters, each battery cluster is formed by a plurality of battery packs 2 connected by connecting lines 208, each battery pack 2 is communicated with the fire extinguishing device 3 through the fire-fighting pipeline and communicated with the liquid cooling device 4 through the liquid cooling pipeline.

[0047] Specifically, as shown in Figure 2 and Figure 3 , in the embodiment of the application, the battery pack 2 includes a detector assembly 204 and a fire-fighting interface 205 arranged inside the battery pack 2, the detector assembly 204 at least includes a detector capable of detecting the gas or smoke concentration in the battery pack 2 and a temperature detector capable of detecting the temperature in the battery pack 2, so as to timely detect the change of the gas or smoke and the temperature in the battery pack 2.

[0048] Optionally, the fire-fighting interface 205 can be arranged as an interface on the battery pack 2 or a fire-fighting nozzle inside the battery pack 2, used for connecting with the fire-fighting pipeline to introduce the fire extinguishing medium to extinguish the fire.

[0049] In the embodiment of the application, the fire extinguishing device 3 is arranged inside the cabin 1 and communicated with the battery pack 2 through the fire-fighting pipeline arranged inside the cabin 1.

[0050] Since the cabin 1 is provided with a plurality of battery packs 2, each battery pack 2 is communicated with the fire extinguishing device 3 through the fire-fighting pipeline, as shown in Figure 1 , the fire-fighting pipeline includes a main fire-fighting pipeline 6 communicated with the fire extinguishing device 3, a first fire-fighting pipeline 7 communicated with the main fire-fighting pipeline 6 at one end and communicated with the fire-fighting interface 205 in the battery pack 2 at the other end, so as to introduce the fire extinguishing medium stored in the fire extinguishing device 3 into the first fire-fighting pipeline 7 through the main fire-fighting pipeline 6, and then into each battery pack 2 through the first fire-fighting pipeline 7.

[0051] In a possible embodiment, a first electromagnetic valve 9 is arranged on the main fire-fighting pipeline 6, and the opening and closing of the first electromagnetic valve 9 controls the opening and closing of the fire extinguishing device 3.

[0052] In the embodiment, in order to introduce the cooling medium stored in the liquid cooling device 4 into the battery pack 2 to extinguish the fire, the fire-fighting pipeline is further communicated with a second fire-fighting pipeline 8, one end of the second fire-fighting pipeline 8 is communicated with the liquid cooling pipeline, and the other end is communicated with the first fire-fighting pipeline 7.

[0053] In a possible embodiment, the second fire-fighting pipeline 8 is provided with a second electromagnetic valve 10, so that when the second preset condition is met, the opening and closing of the second electromagnetic valve 10 controls the opening and closing of the second fire-fighting pipeline 8, and the cooling medium in the liquid cooling device 4 is sent into the battery pack 2 for fire extinguishing. In a possible embodiment, the cooling medium can be cooling water.

[0054] Since the cabin 1 is provided with a plurality of battery packs 2, each battery pack 2 is in communication with the liquid cooling device 4 through a liquid cooling pipeline, as shown in Figure 1 The liquid cooling pipeline includes a first liquid cooling pipeline 11 and a second liquid cooling pipeline 13 in communication with the liquid cooling device 4, a first liquid cooling pipeline 12 in communication with the first liquid cooling pipeline 13 at one end and the inlet 206 of the liquid cooling plate 201 at the other end, and a second liquid cooling pipeline 14 in communication with the second liquid cooling pipeline 13 at one end and the outlet 207 of the liquid cooling plate 201 at the other end. When the liquid cooling device 4 is not used for fire extinguishing, the cooling medium in the liquid cooling device 4 is transported to the liquid cooling plate 201 through the first liquid cooling pipeline 11 and the first liquid cooling pipeline 12 to cool the battery pack 2, and the cooled cooling medium flows out through the outlet 207 of the liquid cooling plate 201 and is transported to the liquid cooling device 4 through the second liquid cooling pipeline 14 and the second liquid cooling pipeline 13 for cooling. When the liquid cooling device 4 is used for fire extinguishing, the second electromagnetic valve 10 is opened, the cooling medium in the liquid cooling device 4 is transported to the second fire-fighting pipeline 8 through the liquid cooling pipeline, and then to the first fire-fighting pipeline 7 and the battery pack 2 for fire extinguishing.

[0055] Among them, the second fire-fighting pipeline 8 can be connected with any one of the first liquid cooling pipeline 11, the first liquid cooling pipeline 12, the second liquid cooling pipeline 13 and the second liquid cooling pipeline 14, so as to introduce the cooling medium in the liquid cooling device 4 into the fire-fighting pipeline. In the embodiment of the present application, the second fire-fighting pipeline 8 is connected with the first liquid cooling pipeline 11.

[0056] In order to exhaust the gas or smoke in the battery pack 2, as shown in Figure 1 In the embodiment of the present application, the cabin 1 further includes an air inlet device and an air outlet device. The air inlet device includes an air inlet fan 15 arranged on the cabin 1, and the air inlet fan 15 is in communication with the battery pack 2 through an air inlet pipeline. The air outlet device includes an air outlet fan 18 arranged on the cabin 1, and the air outlet fan 18 is in communication with the battery pack 2 through an air outlet pipeline. When the third preset condition is met, the air inlet fan 15 and the air outlet fan 18 are opened.

[0057] Among them, the third preset condition is that the concentration of the gas or smoke in the battery pack 2 reaches a preset threshold.

[0058] As shown in Figure 3As shown, in the embodiment of the present application, a first valve 202 and a second valve 203 are provided on the battery pack 2. The first valve 202 is connected to the air inlet pipeline, and the second valve 203 is connected to the air exhaust pipeline. A fan is connected to the second valve 203, so as to form an exhaust channel in the battery pack 2 and accelerate the exhaust efficiency.

[0059] Since there are multiple battery packs 2 in the cabin 1, each battery pack 2 is connected to the air inlet device through an air inlet pipeline and to the air exhaust device through an air exhaust pipeline. The air inlet pipeline includes a main air inlet pipeline 16 connected to the air inlet fan 15, and a secondary air inlet pipeline 17 with one end connected to the main air inlet pipeline 16 and the other end connected to the first valve 202. The air exhaust pipeline includes a main air exhaust pipeline 19 connected to the air exhaust fan 18, and a secondary air exhaust pipeline 20 with one end connected to the main air exhaust pipeline 19 and the other end connected to the second valve 204.

[0060] As Figure 1 shown, a control device 5 is provided in the cabin 1. The control device 5 is connected to the battery pack 2, the fire extinguishing device 3, the liquid cooling device 4, the air inlet device and the air exhaust device, and is used to control the opening and closing of the first valve 202, the second valve 203, the air inlet fan 15 and the air exhaust fan 18 according to the first value detected by the detector assembly 204, and control the opening and closing of the fire extinguishing device 3 and the liquid cooling device 4 according to the second value detected by the detector assembly 204.

[0061] Among them, the first value at least includes the concentration value of gas or smoke in the battery pack 2, and the second value at least includes the temperature value in the battery pack 2.

[0062] As Figure 1 shown, a fire port 21 is provided on the cabin 1. The fire port 21 is connected to a fire hydrant outside the cabin 1. When the cooling medium in the liquid cooling device 4 is used up and the fire cannot be successfully extinguished, an external fire hydrant is used for fire extinguishing.

[0063] The working principle of fire extinguishing in the liquid-cooled energy storage cabin in the present application is as follows:

[0064] The detector assembly 204 monitors the smoke, gas concentration and temperature in the battery pack 2 in real time. When the smoke and gas concentration in the battery pack 2 reaches the third preset condition and the temperature does not reach the first preset condition, the control device 5 controls the air inlet fan 15, the first valve 202, the air exhaust fan 18, the second valve 203 and the fan on the second valve 203 to open, and discharges the smoke or gas out of the cabin 1 through the main air exhaust pipeline 19 and the secondary air exhaust pipeline 20 in the cabin 1 of the battery pack 2 until the smoke and gas concentration in the battery pack 2 is reduced to the preset closing value, the control device 5 controls the first valve 202, the air exhaust fan 18, the second valve 203 and the fan on the second valve 203 to close, and closes the air inlet fan 15 with a preset delay time delay;

[0065] When the temperature in the battery pack 2 reaches the first preset condition, the control device 5 controls the air inlet fan 15, the first valve 202, the air outlet fan 18 and the second valve 203 to be closed, and controls the first electromagnetic valve 9 to be opened to start the fire extinguishing device 3, so that the fire extinguishing medium is delivered into the battery pack 2 through the main fire extinguishing pipeline 6 and the first fire extinguishing pipeline 7 to extinguish the fire, if the fire extinguishing device 3 fails to extinguish the fire successfully, the control device 5 controls the second electromagnetic valve 10 to be opened, so that the cooling medium in the second fire extinguishing pipeline 8 is delivered into the first fire extinguishing pipeline 7, so that the cooling medium is delivered into the battery pack 2 to extinguish the fire, and the second electromagnetic valve 10 is closed after the cooling medium in the liquid cooling device 4 is used up, if the battery pack 2 still cannot be extinguished, the fire is extinguished by the external water through the fire hydrant connected with the cabin 1.

[0066] The liquid cooling energy storage cabin provided by the embodiment of the application can reduce the gas concentration in the battery pack 2 through the first valve 202 and the second valve 203 in the battery pack 2 before the fire occurs, and reduce the risk of explosion of the battery pack, when the fire occurs, the fire extinguishing medium is used to extinguish the fire through the fire extinguishing device 3 and the fire extinguishing pipeline, when the fire extinguishing device 3 fails to extinguish the fire, the cooling medium in the liquid cooling device 4 can be used to extinguish the fire, and finally the fire is extinguished by the external fire hydrant, through the setting of the fire prevention device and the multiple fire extinguishing devices, the fire can be prevented, the fire extinguishing efficiency is improved, and more buffer space is provided for reducing the fire accident.

[0067] The principle and implementation mode of the utility model are described by the specific embodiments in the utility model, and the above embodiment is only used to help understand the method and core idea of the utility model; meanwhile, for the general skilled in the art, according to the idea of the utility model, the specific implementation mode and application range will be changed, and the above description should not be understood as the limitation of the utility model.

Claims

1. A liquid-cooled energy storage pod, characterized by, The application relates to a battery pack cooling and fire extinguishing system. The application comprises: a cabin body; a battery pack arranged in the cabin body, the battery pack comprising a liquid cooling plate, a detector assembly and a fire-fighting interface arranged in the battery pack, the liquid cooling plate comprising an inlet and an outlet; a fire extinguishing device, the fire extinguishing device being communicated with the fire-fighting interface in the battery pack through a fire-fighting pipeline, when a first preset condition is reached, fire extinguishing medium in the fire extinguishing device is introduced into the battery pack through the fire-fighting pipeline; 2. The liquid-cooled energy storage pod of claim 1, wherein, a liquid cooling device, the liquid cooling device being communicated with the liquid cooling plate through a liquid cooling pipeline, the liquid cooling pipeline being communicated with the fire-fighting pipeline, when a second preset condition is reached, cooling medium in the liquid cooling device is introduced into the fire-fighting pipeline through the liquid cooling pipeline, and then introduced into the battery pack through the fire-fighting pipeline. The application further comprises: an air inlet device, the air inlet device comprising an air inlet fan, the air inlet fan being communicated with the battery pack through an air inlet pipeline, 3. The liquid-cooled energy storage pod of claim 2, wherein, an air outlet device, the air outlet device comprising an air outlet fan, the air outlet fan being communicated with the battery pack through an air outlet pipeline, when a third preset condition is reached, the air inlet fan and the air outlet fan are opened.

4. The liquid-cooled energy storage pod of any one of claims 1-3, wherein, The battery pack is provided with a first valve and a second valve, the first valve is communicated with the air inlet pipeline, the second valve is communicated with the air outlet pipeline, and a fan is connected to the second valve.

5. The liquid-cooled energy storage pod of claim 1, wherein, The application further comprises a control device, the control device being connected with the battery pack, the fire extinguishing device, the liquid cooling device, the air inlet device and the air outlet device, and being used for controlling the opening and closing of the first valve, the second valve, the air inlet fan and the air outlet fan according to a first value detected by the detector assembly, and controlling the opening and closing of the fire extinguishing device and the liquid cooling device according to a second value detected by the detector assembly.

6. The liquid-cooled energy storage pod of claim 1, wherein, The fire-fighting pipeline comprises a main fire-fighting pipeline communicated with the fire extinguishing device, a first fire-fighting pipeline communicated with the main fire-fighting pipeline at one end and with the fire-fighting interface in the battery pack at the other end, and a first electromagnetic valve arranged on the main fire-fighting pipeline.

7. The liquid-cooled energy storage pod of claim 1, wherein, The fire-fighting pipeline further comprises a second fire-fighting pipeline communicated with the liquid cooling pipeline at one end and with the fire-fighting pipeline at the other end, and a second electromagnetic valve arranged on the second fire-fighting pipeline.

8. The liquid-cooled energy storage pod of claim 3, wherein, The liquid cooling pipeline comprises a first liquid cooling pipeline and a second liquid cooling pipeline communicated with the liquid cooling device, a first liquid cooling pipeline communicated with the first liquid cooling pipeline at one end and with the inlet of the liquid cooling plate at the other end, and a second liquid cooling pipeline communicated with the second liquid cooling pipeline at one end and with the outlet of the liquid cooling plate at the other end.

9. The liquid-cooled energy storage pod of claim 3, wherein, The air inlet pipeline comprises a main air inlet pipeline communicated with the air inlet fan, and a secondary air inlet pipeline communicated with the main air inlet pipeline at one end and with the first valve at the other end.

10. The liquid-cooled energy storage pod of claim 1, wherein, The air outlet pipeline comprises a main air outlet pipeline communicated with the air outlet fan, and a secondary air outlet pipeline communicated with the main air outlet pipeline at one end and with the second valve at the other end. The cabin body is provided with a fire-fighting port, the fire-fighting port being communicated with a fire hydrant outside the cabin body.

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