CN218299953U - Battery module cooling system, battery box and energy storage equipment - Google Patents
Battery module cooling system, battery box and energy storage equipment Download PDFInfo
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- CN218299953U CN218299953U CN202221496139.6U CN202221496139U CN218299953U CN 218299953 U CN218299953 U CN 218299953U CN 202221496139 U CN202221496139 U CN 202221496139U CN 218299953 U CN218299953 U CN 218299953U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model discloses a battery module cooling system, a battery box and energy storage equipment, relating to the technical field of energy storage; the battery module cooling system comprises an electric core assembly, a liquid cooling plate assembly, a liquid cooling bypass pipeline and a cooling device, wherein the liquid cooling plate assembly comprises a plurality of liquid cooling plates which are arranged on the electric core assembly at intervals in sequence; the liquid cooling bypass pipelines are arranged at two sides of the liquid cooling plate assembly and are communicated with each liquid cooling plate; the cooling device is communicated with the liquid cooling bypass pipeline and is used for cooling the electric core assembly. Through this kind of setting, when guaranteeing the radiating effect, reduce the difference in temperature of electric core subassembly, and then reduce the probability that electric core subassembly thermal runaway appears.
Description
Technical Field
The utility model relates to an energy storage technology field especially relates to a battery module cooling system, battery box and energy storage equipment.
Background
At present, the external environment temperature has great influence on the performance and the service life of the battery module, so that the thermal management system is required to carry out overall temperature control. Common thermal management schemes include natural heat dissipation, air cooling, and liquid cooling, of which liquid cooling is the fastest efficient cooling method. However, when the liquid cooling in the related art is adopted to dissipate heat of the battery core in the battery module, the temperature difference in the battery module is easy to be large, and then the phenomenon of thermal runaway is caused.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a battery module cooling system when guaranteeing the radiating effect, reduces the difference in temperature of core subassembly, and then reduces the probability that thermal runaway appears in the core subassembly.
According to the utility model discloses battery module cooling system of first aspect embodiment, it includes:
a battery cell assembly;
the liquid cooling plate assembly comprises a plurality of liquid cooling plates which are sequentially arranged on the electric core assembly at intervals;
the liquid cooling bypass pipelines are arranged on two sides of the liquid cooling plate assembly and are communicated with each liquid cooling plate;
and the cooling device is communicated with the liquid cooling bypass pipeline and is used for cooling the electric core assembly.
According to the utility model discloses battery module cooling system has following beneficial effect at least: the cooling liquid in the cooling device flows into the plurality of liquid cooling plates through one side of the liquid cooling bypass pipeline, then flows into the cooling device from the liquid cooling plates through the other side of the liquid cooling bypass pipeline for cooling, and circularly flows in the liquid cooling plates, the liquid cooling bypass pipeline and the cooling device to take away heat generated by the electric core assembly and cool the electric core assembly; a plurality of liquid cooling boards are arranged on the electric core assembly side by side and at intervals, so that the cooling liquid flowing through each liquid cooling board is more uniformly distributed, the temperature difference of the electric core assembly is reduced, the consistency of heat dissipation and temperature distribution of the electric core assembly is ensured, the probability of thermal runaway of the electric core assembly is reduced, the contact area of the cooling liquid in the electric core assembly and the liquid cooling boards is further increased, and the electric core assembly has a better heat dissipation effect. Through setting up this battery module cooling system, when guaranteeing the radiating effect, guarantee the uniformity of electric core subassembly heat dissipation and temperature distribution, reduce the probability that thermal runaway appears in the electric core subassembly.
According to the utility model discloses some embodiments of the first aspect, each all be equipped with the liquid cooling passageway in the liquid cooling inboard, liquid cooling bypass line respectively with the inlet of liquid cooling passageway the liquid outlet intercommunication of liquid cooling passageway.
According to the utility model discloses some embodiments of first aspect, liquid cooling bypass pipeline includes income liquid pipeline and drain pipe, go into the export of liquid pipeline with the inlet intercommunication of liquid cooling passageway, the entry of drain pipe with the liquid outlet intercommunication of liquid cooling passageway, go into the import of liquid pipeline the export of drain pipe all with the cooling device intercommunication.
According to some embodiments of the first aspect of the present invention, the cooling device includes a heat exchanging device, an expansion tank, and a driving device, one end of the heat exchanging device is communicated with the outlet of the liquid cooling bypass pipeline, the other end of the heat exchanging device is communicated with one end of the expansion tank, the other end of the expansion tank is communicated with one end of the driving device, and the other end of the driving device is communicated with the inlet of the liquid cooling bypass pipeline; the expansion tank is used for providing the cooling liquid for the liquid cooling plate, the driving device is used for driving the cooling liquid to flow, and the heat exchange device is used for carrying out heat exchange on the cooling liquid from the liquid cooling bypass pipeline.
According to the utility model discloses some embodiments of the first aspect, heat transfer device includes the heat exchanger, the one end of heat exchanger with the export intercommunication of liquid cooling bypass line, the other end of heat exchanger with the one end intercommunication of expansion tank.
According to the utility model discloses some embodiments of first aspect, heat transfer device still includes radiator fan, radiator fan locates on the heat exchanger.
According to some embodiments of the first aspect of the present invention, the drive means is a coolant pump or a wick.
According to the utility model discloses some embodiments of first aspect, battery module cooling system still includes battery module shell, the battery core subassembly, liquid cooling board subassembly, liquid cooling bypass pipeline reaches cooling device all holding in the inboard of battery module shell.
According to the utility model discloses battery box of second aspect embodiment, including a plurality of bases the utility model discloses the battery module cooling system of above-mentioned first aspect embodiment still includes the box, and is a plurality of battery module cooling system all locates in the box.
According to the utility model discloses energy storage equipment of third aspect embodiment, include according to the utility model discloses the battery box of above-mentioned second aspect embodiment.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The accompanying drawings are included to provide a further understanding of the technical solutions of the present invention, and are incorporated in and constitute a part of this specification, together with the embodiments of the present invention for explaining the technical solutions of the present invention, and do not constitute a limitation on the technical solutions of the present invention.
Fig. 1 is a schematic structural diagram of a cooling system for a battery module according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an air conditioner provided by the present invention.
Reference numerals:
a battery module cooling system 10, an air conditioner 20, and a battery box 30;
the battery liquid cooling module 100, the battery pack assembly 110, the liquid cooling plate 120, the liquid inlet pipeline 130, the liquid outlet pipeline 140 and the battery module shell 150;
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, and may be, for example, a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other elements or indirectly connected through one or more other elements or in an interactive relationship between two elements.
In the description of the present invention, unless otherwise explicitly defined, the terms of setting, installing, connecting, etc. should be understood in a broad sense, and for those skilled in the art, the specific meanings of the above terms in the utility model can be understood in specific situations.
At present, the external environment temperature has great influence on the performance and the service life of the battery module, so that the thermal management system is required to carry out overall temperature control. Common thermal management schemes include natural heat dissipation, air cooling, and liquid cooling, of which liquid cooling is the fastest efficient cooling method. However, in the related art, when the electric core in the battery module is cooled by the liquid cooling scheme, an even working environment temperature field cannot be created, so that the temperature difference in the battery module is large, and the phenomenon of thermal runaway easily occurs.
Based on this, the utility model provides a battery module cooling system 10, battery box 30 and energy storage equipment when guaranteeing the radiating effect, reduces the difference in temperature of electric core subassembly 110 in the electric core subassembly 110, and then reduces the probability that thermal runaway appears in electric core subassembly 110.
A battery module cooling system 10 according to an embodiment of the present invention is described below with reference to fig. 1 to 2.
The battery module cooling system 10 according to the embodiment of the first aspect of the present invention, referring to fig. 1, the battery module cooling system 10 includes an electric core assembly 110, a liquid cooling plate assembly, a liquid cooling bypass line and a cooling device 200, the liquid cooling plate assembly includes a plurality of liquid cooling plates 120, and the plurality of liquid cooling plates 120 are sequentially disposed on the electric core assembly 110 at intervals; the liquid cooling bypass pipelines are arranged at two sides of the liquid cooling plate assembly and are communicated with each liquid cooling plate 120; the cooling device 200 is communicated with the liquid cooling bypass pipeline, and the cooling device 200 is used for cooling the electric core assembly 110.
In the utility model, the cooling liquid in the cooling device 200 flows into the plurality of liquid cooling plates 120 through one side of the liquid cooling bypass pipeline, and then flows into the cooling device 200 from the liquid cooling plates 120 through the other side of the liquid cooling bypass pipeline to be cooled, and the cooling liquid circularly flows in the liquid cooling plates 120, the liquid cooling bypass pipeline and the cooling device to take away the heat generated by the cell assembly and cool the cell assembly; a plurality of liquid-cooled panels 120 set up on electric core subassembly 110 side by side and interval, make the coolant liquid that flows through each liquid-cooled panel 120 distribute more evenly, reduce electric core subassembly 110's difference in temperature to guarantee electric core subassembly 110 heat dissipation and temperature distribution's uniformity, and then reduce electric core subassembly 110 and appear the probability of thermal runaway, and further increase the area of contact of coolant liquid in electric core subassembly 110 and the liquid-cooled panel 120, so that electric core subassembly 110 has better radiating effect. Through setting up this battery module cooling system 10, when guaranteeing the radiating effect, guarantee electric core subassembly heat dissipation and temperature distribution's uniformity, reduce electric core subassembly 110 probability of thermal runaway appears.
It should be noted that the battery liquid cooling module 100 is composed of the electric core assembly 110, the liquid cooling plate assembly and the liquid cooling bypass pipeline, the plurality of liquid cooling plates 120 are arranged on the electric core assembly 110 side by side and at intervals, the cooling liquid circulates in the pipeline of the liquid cooling plates 120, the liquid cooling bypass pipeline and the cooling device, and the cooling device cools the cooling liquid to further dissipate heat of the electric core assembly 110. The plurality of liquid-cooling plates 120 are arranged on the electric core assembly 110 side by side at intervals, so that the temperature difference of the electric core assembly 110 in the battery module is effectively reduced, the thermal runaway of the battery module is inhibited, the heat exchange efficiency of the liquid-cooling plate assemblies can be improved, the energy loss is reduced, and the service life of the electric core assembly 110 is prolonged; through setting up this battery module cooling system 10, when guaranteeing the radiating effect for the simple structure of battery liquid cooling module 100 liquid cooling system is convenient for more install and the debugging, and promotes production efficiency, reduction in production cost. The liquid cooling bypass pipeline is communicated with a circulating cooling loop of the cooling device, so that heat emitted by the electric core assembly 110 is taken away by cooling liquid through the liquid cooling plate and the liquid cooling bypass pipeline.
It should be noted that, immersing the electric core assembly 110 in the cooling liquid is beneficial to maintaining the temperature uniformity of the electric core assembly 110. If the electric core assembly 110 is overheated, the working efficiency of the electric core assembly 110 is reduced, the components are damaged prematurely, the service life of the battery liquid cooling module 100 is shortened under the more serious condition, and even the pre-ignition and deflagration tendency can occur. If the electric core assembly 110 is too cold, the working efficiency of the electric core assembly 110 will be reduced, and the user experience will be affected. The cooling liquid can prevent the electric core assembly 110 from being corroded, cool the electric core assembly 110, avoid freezing and the like.
In some embodiments, the battery cell assembly 110 includes a plurality of battery cells, the plurality of battery cells are arranged side by side and at intervals, the plurality of liquid cooling plates 120 are arranged side by side and at intervals on the plurality of battery cells, and each liquid cooling plate 120 extends from the plurality of battery cells, so that the liquid inlet and the liquid outlet of the liquid cooling plate 120 are respectively communicated with the liquid cooling bypass pipelines disposed at two sides of the liquid cooling plate assembly. For example, referring to fig. 1, the battery liquid cooling module 100 includes two battery cores, the two battery cores are disposed side by side, the plurality of liquid cooling plates 120 are disposed on the two battery cores at intervals side by side, and each liquid cooling plate 120 extends out of the two battery cores. In other embodiments, the battery pack assembly 110 includes a battery cell, and a plurality of liquid-cooling plates 120 are spaced side by side on the battery cell, and each liquid-cooling plate 120 extends from the battery cell.
In some embodiments, the liquid cooling plate assembly is integrally formed with the liquid cooling bypass line, and the liquid cooling plate assembly extends from the electric core assembly 110, so that the liquid cooling bypass lines disposed at two sides of each liquid cooling plate 120 are respectively communicated with the liquid inlet and the liquid outlet of each liquid cooling plate 120, and the cooling liquid circulates through the liquid cooling plate assembly, the liquid cooling bypass line and the cooling apparatus 200. In other embodiments, the plurality of liquid-cooling plates 120 are all independent bodies, the liquid-cooling plate assembly and the liquid-cooling bypass line are a structure formed by combining two independent bodies, the liquid-cooling bypass line is disposed on two sides of each liquid-cooling plate 120 and is respectively communicated with the liquid inlet and the liquid outlet of each liquid-cooling plate 120, and the cooling liquid circulates among the liquid-cooling plate assembly, the liquid-cooling bypass line and the cooling device 200.
It should be noted that the liquid cooling plate assembly and the electric core assembly 110 may be in direct contact, and may also be in indirect contact through a heat conducting adhesive, and the embodiment of the present invention is not limited herein.
It should be noted that the liquid cooling plate assembly, the liquid cooling bypass line and the cooling device 200 form a cooling liquid circulation system to form a closed structure, the cooling device 200 actively cools the electric core assembly 110, and the electric core assembly 110 is cooled through continuous circulation work, so that the electric core assembly 110 is always kept in a proper working temperature range.
The coolant may be ionized water, an ethylene glycol aqueous solution, or other common liquid coolant.
The calculation formula of the average velocity of the coolant flow is as follows:
where V represents the average velocity of the coolant flow, Q represents the coolant flow rate, and D represents the inner diameter of the pipe. The inner diameter of the pipe can be the inner diameter of the liquid cooling bypass pipe, or the inner diameter of the liquid cooling channel in the liquid cooling plate 120; the calculation formula of the cooling liquid flow is as follows: q = P/Δ T × C P X ρ where P represents the total battery power, Δ T represents a coolant temperature change value, C P Denotes the specific heat capacity of the coolant, and ρ denotes the density of the coolant.
For example, assuming that a 280Ah lithium iron phosphate battery is charged and discharged at 0.5CP, the power of each battery is 13.44W, and assuming that the power of 20 batteries is 268.8W, the coolant flow rate obtained by substituting the calculation formula of the coolant flow rate is: q = P/Δ T × C P X ρ =268.8/5 × 1064 × 3282=0.9l/min, and the inner diameter of the pipe D = Q 0.42 And =0.0095m =9.5mm, which is about 10mm, wherein the average speed of the cooling liquid flow obtained by a calculation formula of the flow rate of the cooling liquid and the average speed of the cooling liquid flow brought into the pipeline is as follows:
it should be noted that, the front and back sides of the electric core assembly 110 may be respectively provided with a liquid cooling plate assembly, and the side wall of the electric core assembly 110 may also be provided with a liquid cooling plate assembly, so as to effectively increase the heat exchange capacity and improve the heat exchange efficiency.
Referring to fig. 1, it can be understood that a liquid cooling channel is disposed in each liquid cooling plate 120, and the liquid cooling bypass pipeline is respectively communicated with the liquid inlet of the liquid cooling channel and the liquid outlet of the liquid cooling channel.
It should be noted that, by providing the liquid cooling passage in the liquid cooling plate 120, the cooling liquid is in contact with the electric core assembly 110 through the liquid cooling passage, so as to adjust the temperature and the temperature difference of the battery liquid cooling module 100.
Referring to fig. 1, it can be understood that the liquid cooling bypass line includes a liquid inlet line 130 and a liquid outlet line 140, an outlet of the liquid inlet line 130 is communicated with a liquid inlet of the liquid cooling channel, an inlet of the liquid outlet line 140 is communicated with a liquid outlet of the liquid cooling channel, and an inlet of the liquid inlet line 130 and an outlet of the liquid outlet line 140 are both communicated with the cooling device 200.
The liquid coolant flows through the liquid inlet pipe 130, the liquid outlet pipe 140, the liquid cooling passage, and the cooling device 200.
Referring to fig. 1, it can be understood that the cooling device 200 includes a heat exchanging device, an expansion tank, and a driving device, one end of the heat exchanging device is communicated with an outlet of the liquid cooling bypass line, the other end of the heat exchanging device is communicated with one end of the expansion tank, the other end of the expansion tank is communicated with one end of the driving device, and the other end of the driving device is communicated with an inlet of the liquid cooling bypass line; the expansion tank is used for providing cooling liquid for the liquid cooling plate, the driving device is used for driving the cooling liquid to flow, and the heat exchange device is used for carrying out heat exchange on the cooling liquid from the liquid cooling bypass pipeline.
It should be noted that one end of the heat exchanger is communicated with the outlet of the liquid cooling bypass line through the cooling circuit 210, the other end of the heat exchanger is communicated with one end of the expansion tank through the cooling circuit 210, the other end of the expansion tank is communicated with one end of the driving device through the cooling circuit 210, and the other end of the driving device is communicated with the inlet of the liquid cooling bypass line through the cooling circuit 210.
The driving device may be a centrifugal pump, a reciprocating pump, a gravity or suction device, or a wick or other forms of capillary force to drive the cooling liquid to flow. The flow of the cooling fluid is ensured under the drive of a pump or other passive force.
In this embodiment, the cooling liquid reaches the heat exchanging device through the outlet of the liquid outlet pipe 140 and the cooling loop 210, and is cooled by heat exchange with the external environment through the heat exchanging device, and then reaches the expansion tank through the cooling loop 210; the expansion tank can buffer pressure fluctuation in the pipeline, the pressure is not increased too fast and is not reduced too violently, the cooling liquid is enabled to run under a relatively stable pressure, and the cooling liquid can be supplemented through the expansion tank; the cooling liquid flows through the expansion tank and the cooling circuit 210 to the driving device, and the flow of the cooling liquid is ensured under the driving of the driving device.
Referring to fig. 1, it can be appreciated that the heat exchange means includes a heat exchanger, one end of which communicates with the outlet of the liquid cooling bypass line and the other end of which communicates with one end of the expansion tank.
It should be noted that the cooling liquid reaches the heat exchanger through the outlet of the liquid outlet pipe 140 and the cooling loop 210, and the cooling liquid is cooled by heat exchange with the external environment through the heat exchanger.
Referring to fig. 1, it can be understood that the heat exchange device further includes a heat dissipation fan, and the heat dissipation fan is disposed on the heat exchanger.
It should be noted that, the combination of the heat dissipation fan and the heat exchanger improves the heat exchange efficiency of heat exchange with the external environment through the mutual cooperation of the heat exchanger and the heat dissipation fan.
In some embodiments, the heat exchange device comprises only a radiator, i.e. exchanges heat with the external environment only through the heat exchanger; in other embodiments, the heat exchange device comprises a radiator and a heat exchanger, and the heat exchanger and the heat radiating fan are matched with each other to exchange heat with the external environment.
Referring to fig. 1, it will be appreciated that the drive means is a coolant pump or wick.
It should be noted that the coolant pump may be a centrifugal pump or a reciprocating pump; when the driving device is a wick, the cooling liquid is driven to flow through the capillary force of the wick.
In some embodiments, the coolant may be driven to flow by gravity or adsorption force, but is not limited to the embodiments of the present invention.
Referring to fig. 1, it can be understood that the battery module cooling system 10 further includes a battery module housing 150, and the electric core assembly 110, the liquid cooling plate assembly, the liquid cooling bypass line and the cooling device 200 are all accommodated inside the battery module housing 150.
It should be noted that, the battery module housing 150 is provided, and the battery liquid cooling module 100 and the cooling device 200 are both covered by the battery module housing 150, so that the problem of leakage of cooling liquid can be effectively avoided, and the battery liquid cooling module 100 can isolate air and delay the propagation of thermal runaway when facing the thermal runaway of the battery.
The embodiment of the second aspect of the present invention further provides a battery box 30, wherein the battery box 30 includes a plurality of battery module cooling systems 10 as in any of the above embodiments, and further includes a box body, and the plurality of battery module cooling systems 10 are all disposed in the box body.
The embodiment of the third aspect of the utility model also provides an energy storage equipment, and this energy storage equipment includes the utility model discloses the battery box 30 of above-mentioned second aspect embodiment.
For example, referring to fig. 2, in some embodiments, two air conditioners 20 are installed on the side wall of the battery box 30 to form an energy storage device of the air conditioner 20, and the air outlets of the outdoor units of the air conditioners 20 are in a symmetrical manner, so that the air outlets of the two outdoor units face different directions, which do not interfere with each other, and the effect is good, and the ambient air is cooled by the arrangement; in other embodiments, other numbers of air conditioners 20 may be installed on the side wall of the battery box 30, and the present invention is not limited thereto.
In some embodiments, the battery box 30 is connected to another battery box 30 to form a liquid-cooled energy storage device, and the other battery box 30 is secondarily liquid-cooled by the battery box 30.
In some embodiments, the liquid cooling plate assembly is integrally formed with the liquid cooling bypass line, and the liquid cooling plate assembly extends from the electric core assembly 110, so that the liquid cooling bypass lines disposed at two sides of each liquid cooling plate 120 are respectively communicated with the liquid inlet and the liquid outlet of each liquid cooling plate 120, and the cooling liquid circulates through the liquid cooling plate assembly, the liquid cooling bypass line and the cooling apparatus 200. In other embodiments, the plurality of liquid-cooling plates 120 are independent bodies, the liquid-cooling plate assembly and the liquid-cooling bypass pipeline are a structure formed by combining two independent bodies, the liquid-cooling bypass pipeline is disposed on two sides of each liquid-cooling plate 120 and is respectively communicated with the liquid inlet and the liquid outlet of each liquid-cooling plate 120, and the cooling liquid circulates through the liquid-cooling plate assembly, the liquid-cooling bypass pipeline and the cooling apparatus 200.
It should be noted that the liquid cooling plate assembly and the electric core assembly 110 may be in direct contact, and may also be in indirect contact through a heat conducting adhesive, and the embodiment of the present invention is not limited herein.
It should be noted that the liquid cooling plate assembly, the liquid cooling bypass line and the cooling device 200 form a cooling liquid circulation system to form a closed structure, the cooling device 200 actively cools the electric core assembly 110, and the electric core assembly 110 is cooled through continuous circulation work, so that the electric core assembly 110 is always kept within a proper working temperature range.
The coolant may be ionized water, an ethylene glycol aqueous solution, or other common liquid coolant.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and decorations can be made, which are also considered as the protection scope of the present invention.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A battery module cooling system, comprising:
a battery cell assembly;
the liquid cooling plate assembly comprises a plurality of liquid cooling plates, and the plurality of liquid cooling plates are sequentially arranged on the electric core assembly at intervals; the liquid cooling bypass pipelines are arranged on two sides of the liquid cooling plate assembly and are communicated with each liquid cooling plate;
and the cooling device is communicated with the liquid cooling bypass pipeline and is used for cooling the electric core assembly.
2. The battery module cooling system according to claim 1, wherein a liquid cooling channel is disposed in each liquid cooling plate, and the liquid cooling bypass pipeline is respectively communicated with a liquid inlet of the liquid cooling channel and a liquid outlet of the liquid cooling channel.
3. The battery module cooling system of claim 2, wherein the liquid cooling bypass line comprises a liquid inlet line and a liquid outlet line, an outlet of the liquid inlet line is communicated with a liquid inlet of the liquid cooling channel, an inlet of the liquid outlet line is communicated with a liquid outlet of the liquid cooling channel, and an inlet of the liquid inlet line and an outlet of the liquid outlet line are both communicated with the cooling device.
4. The battery module cooling system according to claim 1, wherein the cooling device comprises a heat exchange device, an expansion tank and a driving device, one end of the heat exchange device is communicated with the outlet of the liquid cooling bypass pipeline, the other end of the heat exchange device is communicated with one end of the expansion tank, the other end of the expansion tank is communicated with one end of the driving device, and the other end of the driving device is communicated with the inlet of the liquid cooling bypass pipeline; the expansion tank is used for providing cooling liquid for the liquid cooling plate, the driving device is used for driving the cooling liquid to flow, and the heat exchange device is used for carrying out heat exchange on the cooling liquid from the liquid cooling bypass pipeline.
5. The battery module cooling system of claim 4, wherein the heat exchanging device comprises a heat exchanger, one end of the heat exchanger is communicated with the outlet of the liquid cooling bypass pipeline, and the other end of the heat exchanger is communicated with one end of the expansion tank.
6. The battery module cooling system of claim 5, wherein the heat exchanging device further comprises a heat dissipating fan, and the heat dissipating fan is disposed on the heat exchanger.
7. The battery module cooling system according to claim 4, wherein the driving means is a coolant pump or a wick.
8. The battery module cooling system of claim 1, further comprising a battery module housing, wherein the battery core assembly, the liquid cooling plate assembly, the liquid cooling bypass line, and the cooling device are all housed inside the battery module housing.
9. A battery box, comprising:
a box body;
a plurality of battery module cooling systems of any of claims 1-8, each disposed within the housing.
10. An energy storage device, characterized by comprising the battery case according to claim 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221496139.6U CN218299953U (en) | 2022-06-15 | 2022-06-15 | Battery module cooling system, battery box and energy storage equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221496139.6U CN218299953U (en) | 2022-06-15 | 2022-06-15 | Battery module cooling system, battery box and energy storage equipment |
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| CN218299953U true CN218299953U (en) | 2023-01-13 |
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