CN218498176U - Battery module, battery pack and electric device - Google Patents
Battery module, battery pack and electric device Download PDFInfo
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- CN218498176U CN218498176U CN202222715261.4U CN202222715261U CN218498176U CN 218498176 U CN218498176 U CN 218498176U CN 202222715261 U CN202222715261 U CN 202222715261U CN 218498176 U CN218498176 U CN 218498176U
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- 238000001816 cooling Methods 0.000 claims abstract description 165
- 239000007788 liquid Substances 0.000 claims abstract description 141
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 11
- 230000029058 respiratory gaseous exchange Effects 0.000 abstract description 6
- 238000001125 extrusion Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 238000009826 distribution Methods 0.000 description 21
- 239000000110 cooling liquid Substances 0.000 description 13
- 230000009286 beneficial effect Effects 0.000 description 8
- 230000017525 heat dissipation Effects 0.000 description 5
- 239000002826 coolant Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 238000001802 infusion Methods 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 239000003351 stiffener Substances 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 235000015842 Hesperis Nutrition 0.000 description 1
- 235000012633 Iberis amara Nutrition 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 1
- JDZCKJOXGCMJGS-UHFFFAOYSA-N [Li].[S] Chemical compound [Li].[S] JDZCKJOXGCMJGS-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- VVNXEADCOVSAER-UHFFFAOYSA-N lithium sodium Chemical compound [Li].[Na] VVNXEADCOVSAER-UHFFFAOYSA-N 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
-
- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Automation & Control Theory (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The application discloses battery module, battery package and electric installation. This battery module includes: at least one group of electric cores and at least one group of thermal management components. The battery core group comprises a plurality of battery cells arranged along a first direction. The heat management assembly comprises a cooling portion, the cooling portion comprises at least two liquid cooling pipelines, and the at least two liquid cooling pipelines extend along a first direction. The heat management assembly further comprises an elastic heat conducting part, and the elastic heat conducting part is connected to the outer walls of the at least two liquid cooling pipelines in a wrapping mode and is connected with at least one wall of the electric core group. In this way, this application can improve the structural stability of liquid cooling pipeline, prevents that the liquid cooling pipeline from being broken or being out of shape by the extrusion at electric core charge-discharge production breathing type expanded in-process to can improve cooling efficiency.
Description
Technical Field
The application relates to the technical field of batteries, in particular to a battery module, a battery pack and an electric device.
Background
The battery pack generates a large amount of heat in the internal battery cell during the charging and discharging processes, and the battery cell needs to be radiated in time so as to avoid influencing the use state and the service life of the battery pack; in addition, when the battery core is out of control, if the monomer temperature of the battery core cannot be effectively controlled, the thermal spreading condition can occur, and the battery core is involved in the thermal out of control of other battery cores. Therefore, how to effectively take away the heat generated by the battery cell, efficiently adjust the temperature of the battery cell, and prevent the thermal runaway and the thermal spread of the battery cell is very important.
At present, in order to prevent thermal runaway, a cooling component with a liquid cooling loop inside is generally arranged between adjacent electric core groups to cool the electric core groups, and the existing cooling component is not reasonable in structural design, so that the cooling efficiency of the cooling component is low.
SUMMERY OF THE UTILITY MODEL
The application provides a battery module, battery package and power consumption device can improve the structural stability of liquid cooling pipeline, prevents that the liquid cooling pipeline from being broken or being out of shape by the extrusion at the in-process that electric core charge-discharge produced the breathing type inflation to can improve cooling efficiency.
The application provides a battery module. This battery module includes: at least one group of electric cores and at least one group of thermal management components. The battery cell group comprises a plurality of battery cells arranged along a first direction. The heat management assembly comprises a cooling portion, the cooling portion comprises at least two liquid cooling pipelines, and the at least two liquid cooling pipelines extend along a first direction. The heat management assembly further comprises an elastic heat conducting part, and the elastic heat conducting part is connected to the outer walls of the at least two liquid cooling pipelines in a wrapping mode and is connected with at least one wall of the electric core group.
Correspondingly, the application also provides a battery pack, which comprises a battery box body and the battery module set forth in the embodiment, wherein the battery module is arranged in the battery box body; the battery module comprises at least two groups of electric core groups, wherein the at least two groups of electric core groups are arranged along a third direction, and the third direction is vertical to the first direction.
Correspondingly, the present application further provides an electric device, which includes the battery pack set forth in the above embodiments, and the battery pack is a power supply source of the electric device.
The beneficial effect of this application is: be different from prior art, this application provides a battery module, battery package and electric installation. The battery module comprises at least one group of electric core groups and at least one group of heat management components. The thermal management assembly includes a cooling portion and a resilient heat conducting portion. The cooling part comprises at least two liquid cooling pipelines, and the elastic heat conducting part is connected to the outer walls of the at least two liquid cooling pipelines in a wrapping mode and connected with at least one wall of the electric core group. The heat that the electric core group produced conducts to the liquid cooling pipeline through elasticity heat-conducting part to dispel the heat through the coolant liquid in the liquid cooling pipeline.
Elastic heat conduction portion can respond to the elastic restoring force of self and elastic connection electric core group in this application, and when electric core produced the inflation, elastic heat conduction portion can carry out the elastic buffer to the bulging force that electric core produced, avoids the bulging force direct action of electric core in the liquid cooling pipeline, therefore can improve the structural stability of liquid cooling pipeline, prevents that the liquid cooling pipeline from being broken or being out of shape by the extrusion at the expanded in-process of electric core, and then is favorable to guaranteeing the cooling efficiency of thermal management subassembly. Secondly, elasticity heat-conducting portion elastic connection electric core group can reduce the degree that the heat transfer area between elasticity heat-conducting portion and the electric core group receives electric core state influence, guarantees to have higher heat exchange efficiency between elasticity heat-conducting portion and the electric core group, therefore can improve cooling efficiency. And the elastic heat conducting part is connected to the outer walls of the at least two liquid cooling pipelines in a wrapping manner, so that the at least two liquid cooling pipelines can be connected together, support is provided for the liquid cooling pipelines, and the weight of the battery pack is reduced by adopting a mechanical connection manner relatively.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a perspective view of a battery module according to an embodiment of the present invention;
fig. 2 is an exploded view of a battery module according to an embodiment of the present invention;
fig. 3 is an elevation view of a thermal management assembly provided in accordance with an embodiment of the present invention;
FIG. 4 isbase:Sub>A cross-sectional view of the first thermal management assembly of FIG. 3 in the direction A-A;
FIG. 5 isbase:Sub>A cross-sectional view of the second thermal management assembly of FIG. 3 in the direction A-A;
FIG. 6 isbase:Sub>A cross-sectional view ofbase:Sub>A third thermal management assembly taken in the direction A-A of FIG. 3;
FIG. 7 isbase:Sub>A cross-sectional view ofbase:Sub>A fourth thermal management assembly taken in the direction A-A of FIG. 3;
figure 8 isbase:Sub>A cross-sectional view of the fifth thermal management assembly taken in the directionbase:Sub>A-base:Sub>A of figure 3.
Description of reference numerals:
1, a battery module; 11 a thermal management component; 111 a first liquid preparation section; 1111 a first mounting hole; 112 a second liquid preparation part; 1121 second mounting hole; 113 a cooling section; 114 liquid-cooled conduits; 1141, reinforcing ribs; 1142 defines a structure; 115 an elastic heat-conducting portion; 116 a connecting member; 12 electric core groups; 121 cells.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Furthermore, it should be understood that the detailed description and specific examples, while indicating exemplary embodiments of the invention, are given by way of illustration and explanation only, and are not intended to limit the scope of the invention. In the present application, unless otherwise specified, the use of directional terms such as "upper", "lower", "left" and "right" generally refer to upper, lower, left and right in the actual use or operation of the device, and specifically to the orientation of the drawing figures.
The present application provides a battery module, a battery pack, and an electric device, which will be described in detail below. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments in this application. In the following embodiments, the description of each embodiment has its own emphasis, and reference may be made to the related description of other embodiments for parts that are not described in detail in a certain embodiment.
In order to solve the technical problem of low cooling efficiency of the cooling component in the prior art, an embodiment of the present application provides a battery module. This battery module includes: at least one group of electric cores and at least one group of thermal management components. The battery core group comprises a plurality of battery cells arranged along a first direction. The heat management assembly comprises a cooling portion, the cooling portion comprises at least two liquid cooling pipelines, and the at least two liquid cooling pipelines extend along a first direction. The heat management assembly further comprises an elastic heat conducting part, and the elastic heat conducting part is connected to the outer walls of the at least two liquid cooling pipelines in a wrapping mode and is connected with at least one wall of the electric core group. As described in detail below.
Referring to fig. 1 and 2, fig. 1 is a perspective view of a battery module according to an embodiment of the present invention, and fig. 2 is an exploded view of a battery module according to an embodiment of the present invention.
In one embodiment, the powered device includes a battery pack. The battery pack is a power supply of the electric device. The battery pack includes a battery case and a battery module 1. The battery module 1 is disposed in the battery box, and specifically, the battery module 1 is used for supplying electric energy to an electric device.
The battery module 1 includes at least one electric core pack 12. The battery module 1 defines a first direction (as shown by arrow X in fig. 1 and 2, the same applies below), and each of the cell groups 12 includes a plurality of cells 121 arranged along the first direction. The battery cell 121 includes, but is not limited to, a lithium ion secondary battery cell, a lithium ion primary battery cell, a lithium sulfur battery cell, a sodium lithium ion battery cell, a sodium ion battery cell, or a magnesium ion battery cell, which is not limited in this disclosure. The battery core is used for providing electric energy for the electric device. The electric device can be a mobile phone, a portable device, a notebook computer, a battery car, an electric automobile, a ship, a spacecraft, an electric toy, an electric tool and the like. For example, spacecraft includes aircraft, rockets, space shuttles, spacecraft, and the like; electric toys include stationary or mobile electric toys such as game machines, electric car toys, electric ship toys, electric airplane toys, and the like; the electric tools include metal cutting electric tools, grinding electric tools, assembly electric tools, and electric tools for railways, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, electric impact drills, concrete vibrators, and electric planers.
Referring to fig. 3 and 4 together, fig. 3 isbase:Sub>A front view ofbase:Sub>A thermal management assembly according to an embodiment of the present invention, and fig. 4 isbase:Sub>A cross-sectional view of the first thermal management assembly in the directionbase:Sub>A-base:Sub>A of fig. 3. The following describes the battery module 1 according to the embodiment of the present application.
In one embodiment, the battery module 1 further includes at least one set of thermal management components 11. The thermal management assembly 11 includes a cooling portion 113. The cooling portion 113 includes at least two liquid-cooling pipes 114, and the at least two liquid-cooling pipes 114 extend along a first direction, that is, each liquid-cooling pipe 114 extends along the first direction. The liquid cooling pipe 114 is used for passing cooling liquid to dissipate heat of the electric core assembly 12.
Specifically, the battery module 1 also defines a second direction (indicated by arrow Z in fig. 1 and 2, the same applies below) and a third direction (indicated by arrow Y in fig. 1 and 2, the same applies below). The first direction, the second direction and the third direction are mutually perpendicular in pairs. The at least two liquid cooling pipes 114 are arranged along the second direction, and the electric core assembly 12 and the thermal management assembly 11 are oppositely arranged along the third direction. Of course, in other embodiments of the present application, the at least two liquid-cooling pipes 114 may also be arranged along the third direction, and the liquid-cooling pipes 114 are arranged along the second direction for illustration purposes only, and are not limited thereto.
The thermal management assembly 11 further includes an elastic heat conducting portion 115, the elastic heat conducting portion 115 is wrapped and connected to the outer walls of the at least two liquid cooling pipes 114, and the elastic heat conducting portion 115 is connected to at least one wall of the electric core set 12. The heat generated by the electric core assembly 12 is conducted to the liquid cooling pipe 114 through the elastic heat conducting part 115, and is dissipated through the cooling liquid in the liquid cooling pipe 114.
It should be noted that the thermal management component 11 is connected to at least one wall of the electric core set 12, including the side wall with the largest area of the electric core set 12, for example, the two side walls with the largest area of the electric core set 12. At this time, the thermal management component 11 and the electric core group 12 have the largest contact area, and the heat dissipation effect is good. Of course, the thermal management assembly 11 in the present application can also be connected to other walls of the electric core set 12, for example, to other side walls of the electric core set 12, or to the bottom wall of the electric core set 12.
The elastic heat-conducting portion 115 has, as its name implies, an elastic deformation capability. The elastic heat conduction part 115 can elastically connect the at least one wall of the electric core pack 12 in response to its own elastic restoration force. Liquid cooling pipeline 114 produces the expanded in-process of breathing formula at electric core 121 charge-discharge, and elasticity heat conduction portion 115 can carry out the elastic buffering to the bulging force that electric core 121 produced, avoids the bulging force direct action of electric core 121 to liquid cooling pipeline 114, therefore can improve liquid cooling pipeline 114's structural stability, prevents that liquid cooling pipeline 114 from being broken or being out of shape by the extrusion at electric core 121 charge-discharge production expanded in-process of breathing formula. The liquid cooling pipeline 114 has a stable structure, and can ensure that the liquid cooling pipeline 114 can normally perform heat dissipation, thereby being beneficial to ensuring the cooling efficiency of the thermal management assembly 11. Moreover, the elastic heat conducting part 115 is elastically connected to the electric core assembly 12, so that the degree of influence of the state of the electric core 121 on the heat exchange area between the elastic heat conducting part 115 and the electric core assembly 12 can be reduced, that is, the heat exchange area between the elastic heat conducting part 115 and the electric core assembly 12 can not generate obvious change due to different states of the electric core 121, and higher heat exchange efficiency between the elastic heat conducting part 115 and the electric core assembly 12 can be ensured, thereby improving the cooling efficiency. In addition, the elastic heat-conducting portion 115 can also absorb assembly tolerances, so that the battery module 1 as a whole is more easily assembled.
Furthermore, the elastic heat conducting part 115 fills the gaps between the liquid cooling ducts 114 and the electric core assembly 12 and/or among the plurality of liquid cooling ducts 114, so that the elastic heat conducting part 115 and the electric core assembly 12 have a large contact area, and the heat generated by the electric core assembly 12 can be efficiently conducted to the liquid cooling ducts 114 through the elastic heat conducting part 115 for heat dissipation; in addition, the elastic heat conducting portion 115 can effectively elastically buffer the expansion force generated by the battery cell 121, so as to improve the structural stability of the liquid cooling pipeline 114.
Alternatively, the elastic heat conducting portion 115 may be made of an elastic heat conducting material such as a heat conducting adhesive, which is not limited herein.
In one embodiment, as shown in fig. 4, in the second direction, two adjacent liquid cooling pipes 114 are spaced apart from each other. At least a part of the elastic heat conduction part 115 is located between two adjacent liquid cooling pipelines 114, and the two adjacent liquid cooling pipelines 114 are connected only through the elastic heat conduction part 115. Therefore, a sufficient heat exchange area can be ensured between the liquid cooling duct 114 and the elastic heat conducting part 115, which is beneficial for the elastic heat conducting part 115 to efficiently conduct the heat generated by the electric core assembly 12 to the liquid cooling duct 114, and simultaneously, the overall weight of the heat management assembly 11 can be reduced, thereby reducing the weight of the battery pack.
Referring also to FIG. 5, FIG. 5 isbase:Sub>A cross-sectional view of the second thermal management assembly of FIG. 3 in the direction A-A.
In one embodiment, the thermal management assembly 11 further comprises connecting members 116, and the connecting members 116 are respectively fixed to the outer walls of the at least two liquid-cooled pipes 114. Specifically, in the second direction, two adjacent liquid cooling pipes 114 are spaced from each other, and the two adjacent liquid cooling pipes 114 are fixedly connected by a connecting member 116. In other words, the liquid cooling pipes 114 of this embodiment are fixedly connected by the connecting member 116, so that the at least two liquid cooling pipes 114 form a whole, which is beneficial to improving the structural stability of the liquid cooling pipes 114.
Further, the connecting member 116 is connected to the outer walls of the at least two liquid-cooling pipes 114 as an integral structure. Therefore, the connection member 116 is reliably connected to the outer wall of the liquid cooling pipe 114, which is further beneficial to improving the structural stability of the liquid cooling pipe 114.
In an exemplary embodiment, the direction of extension of the connecting member 116 is parallel to the second direction, as shown in fig. 5. For example, there is a connecting member 116 between any two adjacent liquid cooling pipes 114, and the extending direction of each connecting member 116 is parallel to the second direction.
Referring also to FIG. 6, FIG. 6 isbase:Sub>A cross-sectional view of the third thermal management assembly of FIG. 3 taken along line A-A.
In another exemplary embodiment, the extending direction of the connecting member 116 forms an angle with the second direction, specifically, the extending direction of the connecting member 116 is disposed obliquely to the second direction, and the extending direction of the connecting member 116 is not parallel to the second direction. For example, the number of the liquid cooling pipes 114 is at least three, a connecting member 116 is connected between any two adjacent liquid cooling pipes 114, and each connecting member 116 extends from one side of the cooling portion 113 to the other side in the third direction; and in the second direction, the extending direction of two adjacent connecting pieces 116 is different. Specifically, in the direction from the bottom to the top in fig. 6, one of the two adjacent connectors 116 extends toward one side of the cooling portion 113 in the third direction, and the other connector 116 extends toward the other side.
Please continue to refer to fig. 5. In an embodiment, the thermal management assembly 11 further includes a stiffener 1141, the stiffener 1141 is disposed in at least one of the at least two liquid cooling pipes 114, and the stiffener 1141 is connected to an inner wall of the at least one liquid cooling pipe 114. The reinforcing rib 1141 can reinforce the structural strength of the liquid cooling pipeline 114, which is beneficial to improving the structural stability of the liquid cooling pipeline 114, and further ensures the cooling efficiency of the heat management assembly 11.
Further, for the above example that two adjacent liquid cooling pipes 114 are fixed by the connecting member 116, the reinforcing rib 1141 may be integrated with the connecting member 116. In this way, the reinforcing rib 1141 may be integrally formed with the connecting member 116, which is beneficial to simplifying the manufacturing process of the thermal management assembly 11 and further improving the structural stability of the liquid cooling pipeline 114. For example, as shown in fig. 5, the extending direction of the connecting member 116 and the extending direction of the reinforcing rib 1141 are both parallel to the second direction, and the reinforcing rib 1141 and the connecting member 116 are an integral structure.
Referring to fig. 7 and 8 in combination, fig. 7 isbase:Sub>A cross-sectional view of the fourth thermal management assembly of fig. 3 taken along the linebase:Sub>A-base:Sub>A, and fig. 8 isbase:Sub>A cross-sectional view of the fifth thermal management assembly of fig. 3 taken along the linebase:Sub>A-base:Sub>A.
In one embodiment, the outer walls of the at least two liquid cooling pipes 114 are fixed. Specifically, in the second direction, two adjacent liquid cooling pipes 114 are close to each other and fixed together, wherein the outer walls of the two adjacent liquid cooling pipes 114 are in direct contact.
In this way, the distance between two adjacent liquid cooling pipelines 114 is greatly reduced, so that more liquid cooling pipelines 114 can be arranged in the limited space of the thermal management assembly 11, which is beneficial to improving the heat dissipation efficiency of the thermal management assembly 11, and further the cooling efficiency of the thermal management assembly 11 can be improved.
Please continue to refer to fig. 5. In an embodiment, the thermal management assembly 11 further includes a defining structure 1142. The defining structures 1142 are disposed at both ends of the cooling part 113 in the second direction. The cross-sectional shape of the defining structure 1142 is rectangular, so that the defining structures 1142 at the two ends of the cooling portion 113 can cooperate to define a region like a rectangular parallelepiped, in which the liquid cooling pipe 114 and the elastic heat conducting portion 115 are located. The side wall that thermal management subassembly 11 is used for connecting electric core group 12 constructs a comparatively level and smooth wall through injecing structure 1142 for thermal management subassembly 11 and electric core group 12 can assemble together as far as parallel, avoid leading to the uneven thickness of the elastic heat conduction part 115 of different positions because of relative slope between thermal management subassembly 11 and the electric core group 12, and then avoid the uneven thickness elastic heat conduction part 115 to influence the heat transfer effect between thermal management subassembly 11 and the electric core group 12, this side has also explained the even samming effect that is favorable to improving electric core group 12 of thickness of elastic heat conduction part 115.
Further, the defining structure 1142 is a hollow structure, that is, the inner space of the defining structure 1142 is disposed to penetrate along the first direction. The inner space of the defining structure 1142 can also be used for passing cooling liquid, and the elastic heat conducting part 115 can also conduct the heat generated by the electric core assembly 12 to the defining structure 1142 for heat dissipation.
In one embodiment, the cross-sectional shape of the liquid cooling conduit 114 is circular or elliptical. Fig. 7 exemplarily shows a case where the cross-sectional shape of the liquid-cooling pipe 114 is circular. Fig. 8 exemplarily shows a case where the cross-sectional shape of the liquid-cooling pipe 114 is an ellipse. In this way, the side wall of the liquid cooling pipe 114 is configured to be a smooth surface, which better conforms to the flowing characteristic of the cooling liquid fluid, so that the cooling liquid flows more smoothly in the liquid cooling pipe 114, the resistance of the cooling liquid in the flowing process is reduced, and the heat exchange efficiency and the safety of the battery module 1 can be improved.
It should be noted that the cross-section of the defining structure 1142 and the cross-section of the liquid cooling conduit 114 are understood to be the cross-section of the defining structure 1142 and the liquid cooling conduit 114 taken along the second direction, and the cross-section is perpendicular to the first direction.
Please continue to refer to fig. 1 and 2. In an embodiment, the thermal management assembly 11 further includes a first liquid distribution portion 111 and a second liquid distribution portion 112, and the first liquid distribution portion 111, the cooling portion 113, and the second liquid distribution portion 112 are sequentially arranged along the first direction. The first liquid distribution portion 111 and the second liquid distribution portion 112 are connected to both ends of the cooling portion 113 in the first direction, respectively.
The liquid cooling pipe 114 is circulated with a cooling liquid. The first liquid distribution unit 111 and the second liquid distribution unit 112 are respectively provided therein with a first liquid distribution liquid cooling pipe and a second liquid distribution liquid cooling pipe. The first liquid-dispensing liquid-cooling pipeline, the at least two liquid-cooling pipelines 114 and the second liquid-dispensing liquid-cooling pipeline are sequentially communicated in the flowing direction of the cooling liquid. For example, the cooling liquid is introduced into the liquid cooling pipeline 114 from the first liquid-dispensing liquid cooling pipeline and discharged through the second liquid-dispensing liquid cooling pipeline, or the cooling liquid is introduced into the liquid cooling pipeline 114 from the second liquid-dispensing liquid cooling pipeline and discharged through the first liquid-dispensing liquid cooling pipeline. The two ends of each liquid cooling pipeline 114 are respectively communicated with the first liquid distribution liquid cooling pipeline and the second liquid distribution liquid cooling pipeline. Alternatively, the ends of two adjacent liquid cooling pipes 114 close to each other are connected by a bent pipe, so that the at least two liquid cooling pipes 114 extend in a bent manner.
Further, the battery module 1 further includes two liquid conveying tubes for conveying the cooling liquid. One of the liquid transport tubes communicates with the at least two liquid-cooling ducts 114 on the upstream side in the flow direction of the coolant, and the other liquid transport tube communicates with the at least two liquid-cooling ducts 114 on the downstream side in the flow direction of the coolant.
First mounting hole 1111 has been seted up on first liquid distribution portion 111, and first mounting hole 1111 is used for inserting the transfer line, and the transfer line communicates with first liquid distribution liquid cooling pipeline in first mounting hole 1111. Similarly, a second mounting hole 1121 is formed in the second liquid distribution portion 112, the second mounting hole 1121 is also used for inserting an infusion tube, and the infusion tube is communicated with the second liquid distribution liquid cooling pipeline in the second mounting hole 1121.
Of course, in other embodiments of the present application, the thermal management assembly 11 may include only one liquid distribution portion connected to one end of the cooling portion 113 in the first direction, i.e., the cooling liquid is introduced into the liquid cooling pipeline 114 from the liquid distribution portion, and the cooling liquid in the liquid cooling pipeline 114 is discharged from the liquid distribution portion, which is not limited herein.
For example, the battery module 1 includes at least two electric core sets 12, and the at least two electric core sets 12 are arranged along a third direction. The thermal management components 11 are respectively connected to two sides of each electric core group 12 in the third direction. The liquid distribution liquid cooling pipelines in the liquid distribution part at the same side end of each heat management assembly 11 are all connected to the same infusion tube.
To sum up, battery module, battery package and electric device that this application provided, its battery module includes at least a set of electric core group and at least a set of thermal management subassembly. The thermal management assembly includes a cooling portion and a resilient heat conducting portion. The cooling part comprises at least two liquid cooling pipelines, and the elastic heat conducting part is connected to the outer walls of the at least two liquid cooling pipelines in a wrapping mode and connected with at least one wall of the electric core group. The heat that the electric core group produced conducts to the liquid cooling pipeline through elasticity heat-conducting part to dispel the heat through the coolant liquid in the liquid cooling pipeline.
Elastic heat conduction portion can respond to the elastic restoring force of self and elastic connection electric core group in this application, the liquid cooling pipeline produces the expanded in-process of breathing type at electric core charge-discharge, elastic heat conduction portion can carry out the elastic buffering to the bulging force that electric core produced, avoid the bulging force direct action of electric core in the liquid cooling pipeline, therefore can improve the structural stability of liquid cooling pipeline, prevent that the liquid cooling pipeline from being broken or being out of shape by the extrusion at the electric core charge-discharge in-process that produces the expanded in-process of breathing type, and then be favorable to guaranteeing the cooling efficiency of thermal management subassembly. And, elasticity heat-conducting portion elastic connection electric core group can reduce the degree that the heat transfer area between elasticity heat-conducting portion and the electric core group receives electric core state influence, guarantees to have higher heat exchange efficiency between elasticity heat-conducting portion and the electric core group, therefore can improve cooling efficiency.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and encompass, for example, both fixed and removable connections or integral parts thereof; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
In the embodiments, the term "parallel" means that the angle formed by a straight line and a straight line, a straight line and a plane, or a plane and a plane is in the range of-10 ° to 10 °. The term "perpendicular" means a state in which an angle formed by a straight line and a straight line, a straight line and a plane, or a plane and a plane is 80 ° to 100 °. The equal distance means that the tolerance range is-10% to 10%.
The battery module, the battery pack and the electric device provided by the application are described in detail above, and a specific example is applied in the description to explain the principle and the implementation of the application, and the description of the above embodiment is only used to help understanding the method and the core idea of the application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (13)
1. A battery module, comprising: at least one group of electric cores and at least one group of heat management components; the battery core group comprises a plurality of battery cores arranged along a first direction;
the thermal management assembly comprises:
the cooling part comprises at least two liquid cooling pipelines, and the at least two liquid cooling pipelines extend along the first direction;
and the elastic heat conducting part is connected to the outer walls of the at least two liquid cooling pipelines in a coating manner and is connected with at least one wall of the electric core group.
2. The battery module according to claim 1,
the elastic heat conducting part is respectively connected with the outer walls of the at least two liquid cooling pipelines and at least one wall of the electric core group, and is used for filling gaps between the at least two liquid cooling pipelines and the electric core group and/or gaps between the at least two liquid cooling pipelines.
3. The battery module according to claim 1,
the thermal management assembly further comprises:
and the connecting piece is fixedly connected with the outer walls of the at least two liquid cooling pipelines respectively.
4. The battery module of claim 3, wherein the connecting member is integrally connected to the outer walls of the at least two liquid-cooled conduits.
5. The battery module of claim 3, wherein the thermal management assembly further comprises:
the reinforcing rib is arranged in at least one liquid cooling pipeline of the at least two liquid cooling pipelines, and the reinforcing rib is connected with the inner wall of the at least one liquid cooling pipeline.
6. The battery module according to claim 5, wherein the reinforcing ribs, the connecting member, and the liquid cooling pipe are of an integrated structure.
7. The battery module according to any one of claims 3 to 6,
the battery module is also defined with a second direction, and the at least two liquid cooling pipelines are sequentially arranged at intervals along the second direction;
the extending direction of the connecting piece is parallel to the second direction, or forms an included angle with the second direction.
8. The battery module according to claim 7,
the battery module is also defined with a third direction, and the first direction, the second direction and the third direction are mutually perpendicular in pairs;
the quantity of liquid cooling pipeline is at least three, arbitrary adjacent two be connected with between the liquid cooling pipeline the connecting piece, the connecting piece certainly the cooling portion is in one side in the third direction extends to the opposite side, and adjacent two in the second direction the extending direction of connecting piece is different.
9. The battery module of claim 1, wherein the outer walls of the at least two liquid-cooled conduits are fixedly attached.
10. The battery module according to claim 1,
the battery module is also defined with a second direction, and the at least two liquid cooling pipelines are sequentially arranged at intervals along the second direction;
the thermal management assembly further includes a defining structure provided at both ends of the cooling part in the second direction, the defining structure having a rectangular cross-sectional shape.
11. The battery module according to claim 10, wherein the defining structure is a hollow structure.
12. A battery pack, comprising a battery case and the battery module according to any one of claims 1 to 11, the battery module being placed in the battery case; the battery module comprises at least two groups of electric core groups, wherein the at least two groups of electric core groups are arranged along a third direction, and the third direction is vertical to the first direction.
13. An electric device, comprising the battery pack according to claim 12, wherein the battery pack is a power supply source of the electric device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222715261.4U CN218498176U (en) | 2022-10-11 | 2022-10-11 | Battery module, battery pack and electric device |
| PCT/CN2023/116085 WO2024078177A1 (en) | 2022-10-11 | 2023-08-31 | Battery module, battery pack and electric device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222715261.4U CN218498176U (en) | 2022-10-11 | 2022-10-11 | Battery module, battery pack and electric device |
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| Publication Number | Publication Date |
|---|---|
| CN218498176U true CN218498176U (en) | 2023-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222715261.4U Active CN218498176U (en) | 2022-10-11 | 2022-10-11 | Battery module, battery pack and electric device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN218498176U (en) |
| WO (1) | WO2024078177A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024078177A1 (en) * | 2022-10-11 | 2024-04-18 | 欣旺达动力科技股份有限公司 | Battery module, battery pack and electric device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207938755U (en) * | 2018-02-09 | 2018-10-02 | 比亚迪股份有限公司 | Liquid cooling pipeline and supply unit |
| KR20230036158A (en) * | 2020-07-28 | 2023-03-14 | 비리디 이-모빌리티 테크놀로지(닝보) 컴퍼니 리미티드 | Cell module liquid cooling structure and battery pack using the same |
| CN212676355U (en) * | 2020-09-11 | 2021-03-09 | 珠海银隆电器有限公司 | Heat dissipation structure, battery module and heat dissipation system |
| CN214505645U (en) * | 2021-03-29 | 2021-10-26 | 蜂巢能源科技有限公司 | Cooling plate for battery pack, battery pack and vehicle |
| CN215816100U (en) * | 2021-06-08 | 2022-02-11 | 上海卡耐新能源有限公司 | Battery module and battery pack |
| CN217507468U (en) * | 2022-05-18 | 2022-09-27 | 厦门海辰储能科技股份有限公司 | Battery module |
| CN115000578A (en) * | 2022-06-22 | 2022-09-02 | 中国第一汽车股份有限公司 | Battery module, battery pack and thermal management system |
| CN218498176U (en) * | 2022-10-11 | 2023-02-17 | 欣旺达电动汽车电池有限公司 | Battery module, battery pack and electric device |
-
2022
- 2022-10-11 CN CN202222715261.4U patent/CN218498176U/en active Active
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2023
- 2023-08-31 WO PCT/CN2023/116085 patent/WO2024078177A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024078177A1 (en) * | 2022-10-11 | 2024-04-18 | 欣旺达动力科技股份有限公司 | Battery module, battery pack and electric device |
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| Publication number | Publication date |
|---|---|
| WO2024078177A1 (en) | 2024-04-18 |
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Address after: 518000 1-2 Floor, Building A, Xinwangda Industrial Park, No. 18 Tangjianan Road, Gongming Street, Guangming New District, Shenzhen City, Guangdong Province Patentee after: Xinwangda Power Technology Co.,Ltd. Address before: 518107 1-2 Floor, Building A, Xinwangda Industrial Park, No. 18 Tangjianan Road, Gongming Street, Guangming New District, Shenzhen City, Guangdong Province Patentee before: SUNWODA ELECTRIC VEHICLE BATTERY Co.,Ltd. |
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