CN221978016U - Safe energy storage device based on liquid cooling technology - Google Patents
Safe energy storage device based on liquid cooling technology Download PDFInfo
- Publication number
- CN221978016U CN221978016U CN202323538383.1U CN202323538383U CN221978016U CN 221978016 U CN221978016 U CN 221978016U CN 202323538383 U CN202323538383 U CN 202323538383U CN 221978016 U CN221978016 U CN 221978016U
- Authority
- CN
- China
- Prior art keywords
- energy storage
- liquid
- retardant
- flame
- cooling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004146 energy storage Methods 0.000 title claims abstract description 92
- 239000007788 liquid Substances 0.000 title claims abstract description 70
- 238000001816 cooling Methods 0.000 title claims abstract description 32
- 238000005516 engineering process Methods 0.000 title claims abstract description 25
- 239000003063 flame retardant Substances 0.000 claims abstract description 37
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000000110 cooling liquid Substances 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 230000017525 heat dissipation Effects 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 14
- 239000012782 phase change material Substances 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000741 silica gel Substances 0.000 claims description 6
- 229910002027 silica gel Inorganic materials 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 abstract description 8
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 11
- 239000012809 cooling fluid Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000009970 fire resistant effect Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Secondary Cells (AREA)
Abstract
The application discloses a safe energy storage device based on a liquid cooling technology, which comprises an energy storage cabinet with a plurality of independent flame-retardant bins, an energy storage module arranged in the flame-retardant bins, cooling liquid bags arranged in the flame-retardant bins and matched with the energy storage module, a BMS controller arranged at the bottom end of the energy storage cabinet, and a liquid circulation assembly arranged at the top end of the energy storage cabinet and connected and matched with each cooling liquid bag. The safe energy storage device based on the liquid cooling technology provides an energy storage solution with high efficiency, safety, environmental protection and long-term stability by combining the modern battery management technology, temperature control, intelligent monitoring and renewable energy sources.
Description
Technical Field
The application relates to the field of industrial energy storage, in particular to a safe energy storage device based on a liquid cooling technology.
Background
In the current energy and industrial fields, the importance of industrial energy storage devices is increasingly highlighted. These devices play a key role in regulating grid load, providing emergency power, supporting fusion of renewable energy sources, enhancing flexibility of energy systems, and the like. With the continuous increase of the global demand for sustainable energy, the industrial energy storage market is rapidly expanding, and the energy storage system covers a plurality of application fields from large-scale power grid storage to electric automobiles, renewable energy integration and the like.
In the face of the vigorous development of the market, the research and development of the safety energy storage device based on the liquid cooling technology is particularly important. Such devices aim to address two major challenges faced by current industrial energy storage systems: firstly, the effective heat dissipation of the battery module comprises cooling under a high-temperature environment and heat preservation under a low-temperature condition; secondly, the overall safety of the energy storage system is improved, and particularly, the ignition, explosion and possible chain reaction caused by thermal runaway in the battery module are prevented. The existing air cooling technology is poor in heat dissipation efficiency and temperature control efficiency, while the liquid cooling technology is better in heat dissipation effect, but the main problem is that the contact area of a liquid cooling plate or a liquid cooling pipe and a battery is insufficient, so that the heat dissipation efficiency is limited.
Therefore, the novel safe energy storage device based on the liquid cooling technology is developed, so that the heat dissipation efficiency can be effectively improved, and the safety of the whole energy storage system can be remarkably improved. The device increases the contact area with the battery by optimizing the design of the liquid cooling plate or the liquid cooling pipe, and adopts an advanced monitoring and control system to monitor the state of the battery in real time, thereby effectively preventing the occurrence of thermal runaway and chain reaction. Such innovations are not only critical to improving the performance of existing industrial energy storage systems, but also have great significance in meeting the world's increasing energy storage demands.
Disclosure of utility model
The application aims to at least overcome one defect in the prior art and provides a safe energy storage device based on a liquid cooling technology, which adopts a combined design of an isolation bin and liquid sac type liquid flow cooling, thereby ensuring effective temperature control and ensuring safe use.
In order to achieve the aim, the application discloses a safe energy storage device based on a liquid cooling technology, which comprises an energy storage cabinet provided with a plurality of independent flame retardant bins, an energy storage module arranged in the flame retardant bins, cooling liquid bags arranged in the flame retardant bins and matched with the energy storage module, a BMS controller arranged at the bottom end of the energy storage cabinet, a liquid circulation assembly arranged at the top end of the energy storage cabinet and connected and matched with each cooling liquid bag,
The flame-retardant bins are arranged at intervals, and water injection explosion-proof fire-extinguishing layers are arranged in the intervals;
the flame-retardant bin is of a sealing structure, and a flame-retardant layer made of flame-retardant materials is arranged on the wall surface of the flame-retardant bin;
The energy storage module is in a regular shape without sharp protrusions, is installed in the flame-retardant bin, is reserved with the rest surfaces except the bottom surface of the flame-retardant bin, comprises a shell and a plurality of electric cores with temperature sensors, wherein the electric cores are positioned in the shell, are substantially connected with the BMS controller, send the temperature of each electric core to the BMS controller and are controlled by the BMS controller to charge and discharge;
The cooling liquid bag is of a cover structure and is made of a heat-conducting silica gel material, the cooling liquid bag is provided with a concave surface matched with the energy storage module, the cooling liquid bag is positioned in the interval position, the cooling liquid bag is provided with a water inlet pipe and a water outlet pipe which extend out of the flame-retardant bin, the water inlet pipe and the water outlet pipe are respectively connected with the liquid circulation assembly, and electric control valves controlled by the BMS controller are respectively arranged on the water inlet pipe and the water outlet pipe; the cooling liquid bag expands after liquid injection and pressurization to enable the inner surface to be pressed on the outer surface of the energy storage module, and heat exchange and temperature control are carried out on the energy storage module;
The liquid circulation assembly comprises a liquid storage tank with a liquid inlet and a liquid outlet, a tank heat dissipation assembly and a circulation pump, wherein the tank heat dissipation assembly comprises a heat exchanger communicated with the liquid storage tank and a heat dissipation fan opposite to the heat exchanger; the liquid inlet and the liquid outlet are respectively provided with an electric control flow valve controlled by the BMS controller; the liquid inlet and the liquid outlet are respectively provided with an electric control flow valve controlled by the BMS controller, and the flow of the liquid outlet is larger than that of the liquid inlet in the working state of the liquid circulation assembly, so that the liquid in the cooling liquid bag has hydraulic pressure, and the cooling liquid bag is inflated;
The BMS controller comprises a microprocessor, a charge and discharge control circuit connected with the microprocessor and each energy storage module, a communication interface connected with the microprocessor, a digital voltage sensor connected with the microprocessor, a digital current sensor connected with the microprocessor and a protection circuit connected with the charge and discharge control circuit.
Further, the top of energy storage cabinet is equipped with the photovoltaic board, and above-mentioned photovoltaic board passes through charging circuit and links to each other with BMS controller. The photovoltaic board is used for charging to at least one energy storage module, and in addition, the photovoltaic board is also used for sheltering from the sunshine and penetrate directly, avoids the liquid circulation subassembly to penetrate the temperature that causes because of sunshine directly to be too high.
Further, phase change materials are filled between the shell and the battery cell, and temperature adjustment is achieved through further uniform heat dissipation of the phase change materials.
Further, the housing is made of a non-metallic material with a high heat transfer coefficient.
Further, at least one water inlet hole for cooling liquid to enter to realize fire extinguishment is formed in the shell.
Further, a temperature sensor connected with the BMS controller is arranged on the shell, and temperature information of the outer surface of the shell is sent to the BMS controller.
Further, the flame retardant bin has a viewing window.
Compared with the prior art, the application has at least one of the following advantages:
1. Enhanced security: the arrangement of the flame-retardant bin obviously improves the safety of the device and prevents the risks of fire and explosion.
The water injection design of the explosion-proof fire extinguishing layer further strengthens the safety measures and provides passive fire protection.
And (3) effective temperature management: the cooling liquid bag that heat conduction silica gel material was made closely laminates the energy storage module after annotating liquid pressure boost, effectively carries out the heat exchange, keeps electric core temperature in ideal within range, and the battery is guaranteed to the temperature monitoring and the control function of BMS controller at the optimum temperature operation, prevents overheated, in addition, even under extreme conditions, can melt the silica gel after the energy storage module thermal runaway, can make the cooling liquid bag break and flow out the cooling liquid and carry out direct cooling and put out a fire to the energy storage module.
Environmental suitability: the design of photovoltaic board not only provides the function of charging, can also shelter from the sunshine and penetrate directly, reduces the influence of ambient temperature to the system.
The design of the whole system considers environmental adaptability and can work stably under different climatic conditions.
In summary, the safe energy storage device based on the liquid cooling technology provides an efficient, safe, environment-friendly and long-term stable energy storage solution by combining the modern battery management technology, temperature control, intelligent monitoring and renewable energy sources.
Drawings
Various aspects of the present disclosure will be better understood upon reading the following detailed description in conjunction with the drawings, the location, dimensions, and ranges of individual structures shown in the drawings, etc., are sometimes not indicative of actual locations, dimensions, ranges, etc. In the drawings:
FIG. 1 is a schematic diagram of the structure of one embodiment of the present disclosure.
Fig. 2 is a schematic view of the structure of a fire-retardant bin in an embodiment of the present disclosure.
Fig. 3 is a schematic diagram of a structure of a cooling fluid bag and an energy storage module according to an embodiment of the disclosure.
Detailed Description
The present disclosure will be described below with reference to the accompanying drawings, which illustrate several embodiments of the present disclosure. It should be understood, however, that the present disclosure may be presented in many different ways and is not limited to the embodiments described below; indeed, the embodiments described below are intended to more fully convey the disclosure to those skilled in the art and to fully convey the scope of the disclosure. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide yet additional embodiments.
It should be understood that throughout the drawings, like reference numerals refer to like elements. In the drawings, the size of certain features may be modified for clarity.
It should be understood that the terminology used in the description is for the purpose of describing particular embodiments only, and is not intended to be limiting of the disclosure. All terms (including technical and scientific terms) used in the specification have the meanings commonly understood by one of ordinary skill in the art unless otherwise defined. For the sake of brevity and/or clarity, techniques, methods and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but the techniques, methods and apparatus should be considered a part of the specification where appropriate.
As used in this specification, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. The use of the terms "comprising," "including," and "containing" in the specification, mean that the recited features are present, but that one or more other features are not excluded. The term "and/or" as used in the specification includes any and all combinations of one or more of the associated listed items. The words "between X and Y" and "between about X and Y" used in this specification should be interpreted as including X and Y. The term "between about X and Y" as used herein means "between about X and about Y" and the term "from about X to Y" as used herein means "from about X to about Y".
In the description, an element is referred to as being "on," "attached" to, "connected" to, "coupled" to, "contacting" or the like another element, and the element may be directly on, attached to, connected to, coupled to or contacting the other element or intervening elements may be present. In contrast, when an element is referred to as being "directly on," "directly attached to," directly connected to, "directly coupled to, or" directly contacting "another element, there are no intervening elements present. In the specification, one feature is arranged "adjacent" to another feature, which may mean that one feature has a portion overlapping with or located above or below the adjacent feature.
In the specification, spatial relationship terms such as "upper", "lower", "left", "right", "front", "rear", "high", "low", and the like may describe the relationship of one feature to another feature in the drawings. It will be understood that the spatially relative terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, when the device in the figures is inverted, features that were originally described as "below" other features may be described as "above" the other features. The device may also be otherwise oriented (rotated 90 degrees or at other orientations) and the relative spatial relationship will be explained accordingly.
Examples
As shown in fig. 1-3, an exemplary structure of a safe energy storage device based on a liquid cooling technology is disclosed in this embodiment, and the core composition of the device includes an energy storage cabinet 6, a plurality of independent flame retardant bins 1 positioned in the energy storage cabinet 6, an internal energy storage module 2, a cooling liquid sac 3 matched with the energy storage module 2, a BMS controller 4 positioned at the bottom end of the energy storage cabinet 6, and a liquid circulation assembly 5 positioned at the top end.
Specifically, in this embodiment, the energy storage cabinet 6 is a key component of the safety energy storage device, and is rectangular or cubic in shape, and the size is customized according to the energy storage requirement and the installation space, similar to the conventional power equipment cabinet for easy integration and layout. They are made of high strength, corrosion resistant materials such as galvanized or stainless steel, ensuring structural robustness and durability.
More specifically, in terms of internal structure, the energy storage cabinet 6 is internally divided into a plurality of independent flame-retardant cabins 1, and a water injection explosion-proof fire-extinguishing layer 7 is arranged between each cabin, so that the overall safety is enhanced. The flame-retardant bins 1 are all of a sealing structure, and the wall surfaces are covered with flame-retardant materials. In these bins, the energy storage modules 2 are installed, with a certain spacing reserved between the modules and the bin walls, both for placing the cooling fluid pockets 3 and for dissipating heat. In addition, appropriate wires and connectors are provided inside for connecting the energy storage module 2 with other components such as the BMS controller 4.
Furthermore, as a further optimization, on top of the energy storage cabinet 6, a photovoltaic panel 8 is installed to provide additional energy input and to act as a sun visor, reducing the impact of direct sunlight on the equipment.
It should be understood that the installation position and orientation of the photovoltaic panel 8 are to be adjusted and determined according to the actual situation.
For viewing purposes, some fire-retardant bins 1 of the energy storage cabinet 6 may be equipped with viewing windows, allowing the internal conditions to be monitored without opening the cabinet door. To prevent overheating of the interior, the cabinet may be designed with vents or fans to ensure that the interior temperature is maintained within a safe range. An interface and a control panel may also be provided outside to facilitate monitoring and maintenance of the energy storage cabinet 6.
As a more detailed description of the present embodiment, specifically, each of the fire-resistant bins 1 is sealed, with an explosion-proof fire-extinguishing layer and a fire-resistant layer to improve the overall safety. The energy storage module 2 is designed into a shape without sharp protrusions, is arranged in the flame retardant bin 1, and internally comprises a plurality of electric cores with temperature sensors. These cells are connected with the BMS controller 4 to realize accurate control of charge and discharge. Phase change materials are filled between the shell and the battery core for further uniform heat dissipation and temperature adjustment, and the shell is made of nonmetallic materials with high heat transfer coefficients.
It is understood that electrical phase change materials are used for uniform heat dissipation and temperature regulation. Such phase change materials have the property of changing state at a specific temperature, typically changing between solid and liquid states, and are capable of absorbing or releasing a large amount of heat during the phase change. Its excellent thermal stability allows it to repeatedly undergo state transitions without degradation over the temperature range in which the battery operates, while chemical stability ensures safe compatibility with the cell or housing materials. When the battery cell generates heat in the use process, the phase change material absorbs heat and is converted from solid state to liquid state, so that the temperature of the battery cell is effectively reduced. Conversely, when the cell cools, it releases the stored heat and reconverts back to a solid state, maintaining the cell temperature stable. The application of such a material promotes an even distribution of heat throughout the module, avoiding local overheating. During design and assembly of the energy storage module 2, the phase change material is filled with a suitable thickness and shape to ensure efficient thermal management. When the material is selected, the phase change temperature point, the heat capacity, the heat conductivity and the compatibility with a battery component are mainly considered, so that the optimal performance and the safety are ensured, the thermal management efficiency of the battery core is obviously improved, the battery performance and the service life are improved, and the safety risk caused by abnormal temperature is reduced.
As a more detailed description of the present embodiment, specifically, the cooling fluid bladder 3 is of a hood type design, made of a heat conductive silicone material, and has a concave surface to cooperate with the energy storage module 2. The cooling fluid bag 3 is connected with the fluid circulation assembly 5 through the water inlet pipe and the water outlet pipe inside the cooling fluid bag, and the electric control valves controlled by the BMS controller 4 are arranged on the pipelines. After the liquid injection and pressurization, the cooling liquid bag 3 expands, and the inner surface of the cooling liquid bag is pressed on the outer surface of the energy storage module 2, so that the effective heat exchange and temperature control are realized.
More specifically, the coolant bladder 3 can be closely adhered to the outer surface of the energy storage module 2 as needed, thereby maximizing heat exchange efficiency and ensuring uniformity of temperature distribution. When manufacturing these cooling fluid bags 3, a silica gel material with good thermal conductivity is usually selected, which not only maintains flexibility, but also can effectively conduct heat, and has good durability and chemical stability, so as to ensure stable performance in long-term use.
It should be understood that in the safety energy storage device based on the liquid cooling technology, the design of the cooling liquid bag 3, the phase change material and the flame retardant bin 1 combines efficient cooling and fire extinguishing mechanism in emergency. Under normal operating condition, the cooling liquid bag 3 is tightly attached to the outer surface of the energy storage module 2 by utilizing a heat-conducting silica gel material and a cover type structure, and the heat generated by the module is efficiently absorbed and conducted by the liquid circulation assembly 5, so that the ideal temperature of the energy storage module 2 is maintained. Meanwhile, the phase change materials filled between the electric cores and the shell absorb or release heat energy in the process of conversion between solid and liquid states, so that the temperature of the electric cores is further stabilized.
In case of emergency such as fire, the design in the fire-retardant bin 1 plays a key role. In case of fire, the cooling fluid bag 3 is burned, and at this time, the cooling fluid released by the cooling fluid bag 3 when broken enters the flame-retardant bin 1, which helps to quickly reduce the temperature and assist in the fire extinguishing process.
It should also be understood that in extreme cases, the water-filled explosion-proof fire-extinguishing layer within the fire-resistant bin 1 may fire and extinguish the fire rapidly. The design not only effectively prevents the spread of fire, but also provides additional safety guarantee for the whole system.
The design of the whole system is therefore aimed at ensuring that effective cooling and safety protection is provided both in normal operation and in emergency situations, so that the energy storage device is greatly improved in its safety while maintaining efficient operation.
As a more detailed description of the present embodiment, specifically, the liquid circulation component 5 is composed of a liquid tank, a heat radiation assembly, and a circulation pump. The heat dissipation assembly comprises a heat exchanger communicated with the liquid storage tank and a heat dissipation fan opposite to the heat exchanger. In addition, the BMS controller 4 is a brain of the system, and includes a microprocessor, a charge and discharge control circuit connected to the microprocessor and each energy storage module, a communication interface, digital voltage and current sensors, and a protection circuit.
More specifically, the BMS controller 4 plays a critical role in the safety energy storage device, and is responsible for monitoring and managing the state of the battery module to ensure safe and efficient operation thereof. The charging and discharging process of the energy storage module 2 is accurately controlled, and overcharge and overdischarge are prevented, so that the service life of the battery is prolonged. The BMS controller 4 also manages current and voltage during charge and discharge, ensuring operation within a safe range. In addition, it monitors the temperature of each cell in the energy storage module 2 in real time, ensures that they operate in a safe and effective temperature range, and takes regulation measures or gives an alarm when an abnormal temperature is detected. The BMS controller 4 also monitors the state of charge (SOC) and state of health (SOH) of the battery to optimize performance and predict maintenance requirements.
From a structural point of view, the core of the BMS controller 4 is a microprocessor responsible for processing all sensor data and executing control algorithms to make control decisions quickly and accurately. It has the ability to communicate with external systems (such as a central monitoring system or other intelligent devices) to facilitate data sharing and remote management. The controller also includes digital voltage and current sensors for accurately measuring the voltage and current of the battery, and temperature sensors for monitoring the battery and system temperature in real time. The protection circuit is also a key component for preventing dangerous situations such as overcharge, overdischarge, overheat and the like of the battery, and rapidly disconnecting the battery or taking other protection measures when a potential risk is detected.
In this embodiment, the BMS controller 4 is installed at the bottom of the energy storage cabinet 6, and in most cases, is also equipped with a user interface, displaying key information and allowing a user to perform a certain degree of configuration and control, and parameter setting and firmware upgrading can be performed through software to adapt to different operation conditions and performance requirements.
Although exemplary embodiments of the present disclosure have been described, it will be understood by those skilled in the art that various changes and modifications can be made to the exemplary embodiments of the present disclosure without materially departing from the spirit and scope of the disclosure. Accordingly, all changes and modifications are intended to be included within the scope of the present disclosure as defined by the appended claims. The disclosure is defined by the following claims, with equivalents of the claims to be included therein.
Claims (9)
1. A safe energy storage device based on liquid cooling technology, its characterized in that: the device comprises an energy storage cabinet with a plurality of independent flame-retardant bins, an energy storage module arranged in the flame-retardant bins, a cooling liquid bag arranged in the flame-retardant bins and matched with the energy storage module, a BMS controller arranged at the bottom end of the energy storage cabinet, a liquid circulation assembly arranged at the top end of the energy storage cabinet and connected and matched with each cooling liquid bag,
The energy storage module is in a regular shape without sharp protrusions, is installed in the flame-retardant bin, is reserved with the rest surfaces except the bottom surface of the flame-retardant bin, comprises a shell and a plurality of electric cores with temperature sensors, wherein the electric cores are positioned in the shell, are substantially connected with the BMS controller, send the temperature of each electric core to the BMS controller and are controlled by the BMS controller to charge and discharge;
The cooling liquid bag is of a cover structure and is made of a heat-conducting silica gel material, the cooling liquid bag is provided with a concave surface matched with the energy storage module, the cooling liquid bag is positioned in the interval position, the cooling liquid bag is provided with a water inlet pipe and a water outlet pipe which extend out of the flame-retardant bin, the water inlet pipe and the water outlet pipe are respectively connected with the liquid circulation assembly, and electric control valves controlled by the BMS controller are respectively arranged on the water inlet pipe and the water outlet pipe; the cooling liquid bag expands after liquid injection and pressurization to enable the inner surface to be pressed on the outer surface of the energy storage module, and heat exchange and temperature control are carried out on the energy storage module;
the liquid circulation assembly comprises a liquid storage tank with a liquid inlet and a liquid outlet, a tank heat dissipation assembly and a circulation pump, wherein the tank heat dissipation assembly comprises a heat exchanger communicated with the liquid storage tank and a heat dissipation fan opposite to the heat exchanger; the liquid inlet and the liquid outlet are respectively provided with an electric control flow valve controlled by the BMS controller, and the flow of the liquid outlet is larger than that of the liquid inlet in the working state of the liquid circulation assembly, so that the liquid in the cooling liquid bag has hydraulic pressure, and the cooling liquid bag is inflated;
The BMS controller comprises a microprocessor, a charge and discharge control circuit connected with the microprocessor and each energy storage module, a communication interface connected with the microprocessor, a digital voltage sensor connected with the microprocessor, a digital current sensor connected with the microprocessor and a protection circuit connected with the charge and discharge control circuit.
2. A liquid cooling technology based safety energy storage device as claimed in claim 1, wherein: the flame-retardant bin is of a sealing structure, and a flame-retardant layer made of flame-retardant materials is arranged on the wall surface.
3. A liquid cooling technology based safety energy storage device as claimed in claim 1, wherein: the flame-retardant bins are arranged at intervals, and water injection explosion-proof fire-extinguishing layers are arranged in the intervals.
4. A liquid cooling technology based safety energy storage device as claimed in claim 1, wherein: the top of the energy storage cabinet is provided with a photovoltaic panel, and the photovoltaic panel is connected with the BMS controller through a charging circuit; the photovoltaic panel is used for charging at least one energy storage module.
5. A liquid cooling technology based safety energy storage device as claimed in claim 1, wherein: phase change materials are filled between the shell and the battery core.
6. A liquid cooling technology based safety energy storage device as claimed in claim 1, wherein: the housing is made of a non-metallic material with a high heat transfer coefficient.
7. A liquid cooling technology based safety energy storage device as claimed in claim 1, wherein: at least one water inlet hole for cooling liquid to enter to realize fire extinguishment is formed in the shell.
8. A liquid cooling technology based safety energy storage device as claimed in claim 1, wherein: the shell is provided with a temperature sensor connected with the BMS controller, and temperature information of the outer surface of the shell is sent to the BMS controller.
9. A liquid cooling technology based safety energy storage device as claimed in claim 1, wherein: the fire-retardant bin has a viewing window.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202323538383.1U CN221978016U (en) | 2023-12-25 | 2023-12-25 | Safe energy storage device based on liquid cooling technology |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202323538383.1U CN221978016U (en) | 2023-12-25 | 2023-12-25 | Safe energy storage device based on liquid cooling technology |
Publications (1)
Publication Number | Publication Date |
---|---|
CN221978016U true CN221978016U (en) | 2024-11-08 |
Family
ID=93323237
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202323538383.1U Active CN221978016U (en) | 2023-12-25 | 2023-12-25 | Safe energy storage device based on liquid cooling technology |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN221978016U (en) |
-
2023
- 2023-12-25 CN CN202323538383.1U patent/CN221978016U/en active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN111834700B (en) | Thermal management and pressure management system for power battery of electric automobile | |
CN203503756U (en) | Thermal management system of power battery based on flat plate loop heat pipes | |
CN102376997B (en) | Battery system with temperature adjusting device | |
EP4012821A1 (en) | Battery pack and vehicle comprising the battery pack | |
CN208433489U (en) | A kind of electric automobile battery box and its heat dissipation, heating system | |
KR20200089800A (en) | Fire Spread Prevention Structure of Energy Storage System for Photovoltaic Power Generation Facilities | |
CN112618994A (en) | Fire extinguishing system applied to lithium ion battery energy storage device | |
CN103367837A (en) | Power battery thermal management system based on flat loop heat pipes | |
WO2023093233A1 (en) | Energy storage device | |
CN207338575U (en) | A kind of battery case cooling system and vehicle | |
CN221978016U (en) | Safe energy storage device based on liquid cooling technology | |
CN105932187B (en) | A kind of electric vehicle battery system of quickly-chargeable | |
CN115472963A (en) | Forced circulation cooling household energy storage lithium battery and control method thereof | |
GB2561212A (en) | Housing | |
CN112838294A (en) | Phase-change material, embedded cold-tube lithium battery, thermal management and runaway suppression system | |
CN117559015A (en) | Safe energy storage device based on liquid cooling technology | |
CN219513197U (en) | Battery pack, energy storage device and new energy equipment | |
CN219498021U (en) | Power battery pack and electric equipment | |
CN220122644U (en) | Low temperature resistant outdoor power supply | |
CN219458752U (en) | Integrated liquid cooling energy storage battery cabinet | |
CN218957851U (en) | Battery shell and high-capacity battery | |
CN217468621U (en) | Battery module, battery package and energy storage system | |
KR102699195B1 (en) | Liquid cooling integrated energy storage apparatus | |
CN210074096U (en) | Power battery thermal runaway automatic protection device | |
CN215284419U (en) | Intelligent battery replacement system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant |