CN114400414A - Battery cell module and battery pack - Google Patents
Battery cell module and battery pack Download PDFInfo
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- CN114400414A CN114400414A CN202210073989.3A CN202210073989A CN114400414A CN 114400414 A CN114400414 A CN 114400414A CN 202210073989 A CN202210073989 A CN 202210073989A CN 114400414 A CN114400414 A CN 114400414A
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- 230000004888 barrier function Effects 0.000 claims description 20
- 238000000034 method Methods 0.000 abstract description 10
- 230000005611 electricity Effects 0.000 abstract description 5
- 239000004964 aerogel Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 238000010073 coating (rubber) Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
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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 application relates to power battery technical field, especially, relate to an electricity core module and battery package, electricity core module includes: the battery comprises a first shell, a second shell and a battery core, wherein the first shell is provided with a plurality of first accommodating parts for accommodating battery cores; the second shell is provided with a plurality of second accommodating parts for accommodating the battery cells; the first shell is positioned above the second shell, the number of the first accommodating parts is less than that of the second accommodating parts, and the first accommodating parts and the second accommodating parts are arranged in a staggered mode. The application provides an electric core module can show stability and the security that improves electric core in the battery package to can make full use of battery package inner space, assembly process is convenient and assembly efficiency increases substantially.
Description
Technical Field
The application relates to the technical field of power batteries, in particular to a battery cell module and a battery pack.
Background
At present, the mode of assembly is adopted one by one to most electric core in current battery package, and not only assembly efficiency is low, the assembling process is complicated, and electric core bears pressure in the inside of battery package, the ability of pressure is relatively poor moreover, thereby influence the stability of electric core in the battery package, and because electric core need arrange one by one, stack, all need consolidate each electric core, the inner space who has taken a large amount of battery packages, lead to the space utilization in the battery package low, also influence the energy density of the whole package of battery package.
Disclosure of Invention
An object of this application is to provide a battery core module and battery package to solve the current battery package electric core assembling process complicacy that exists among the prior art, the technical problem that battery package inner space utilization is low to a certain extent.
The application provides a battery cell module, include: the battery pack comprises a first shell, a second shell and a battery, wherein the first shell is provided with a plurality of first accommodating parts for accommodating battery cells;
a second casing formed with a plurality of second accommodating portions for accommodating the battery cells;
the first shell is positioned above the second shell, the number of the first accommodating parts is less than that of the second accommodating parts, and the first accommodating parts and the second accommodating parts are arranged in a staggered mode.
In the above technical solution, further, the first housing and the second housing both have a U-shaped structure; a plurality of first baffles are sequentially arranged in the first shell along a first direction at intervals so as to divide the inner space of the first shell into a plurality of first accommodating parts arranged along the first direction;
a plurality of second baffles are sequentially arranged in the second shell along a first direction at intervals so as to divide the inner space of the second shell into a plurality of second accommodating parts arranged along the first direction;
the first barrier is not aligned with the second barrier.
In any one of the foregoing technical solutions, further, at least one battery cell is disposed in each first accommodating portion, and when the number of the battery cells in each first accommodating portion is more than one, a plurality of the battery cells are disposed at intervals along a second direction;
at least one battery cell is arranged in each second accommodating part, and when the number of the battery cells in each second accommodating part is more than one, a plurality of the battery cells are arranged at intervals along a second direction;
the second direction is perpendicular to the first direction.
In any of the above technical solutions, further, the number of the first housings is at least two, at least two of the first housings are sequentially arranged along the first direction, and a predetermined interval is formed between two adjacent first housings.
In any of the above technical solutions, further, the heights of the first barrier and the second barrier are both smaller than the thickness of the battery cell;
the first separating block and the second separating block are both provided with guide parts.
In any of the above technical solutions, further, a first step portion is formed between one of the first housings and the second housing;
a second step portion is formed between the other of the plurality of first housings and the second housing;
the width of the first step part is 1/3-1/2 of the width of the battery cell; the width of the second step part is 1/5-1/3 of the width of the battery cell.
In any of the above technical solutions, further, the length of the battery cell is X, and X is greater than or equal to 200mm and less than or equal to 600 mm; the width of the battery cell is Y, and Y is more than or equal to 85mm and less than or equal to 175 mm; the thickness Z of the battery cell is not less than 50mm and not more than 61 mm.
In any one of the above technical solutions, further, the cell module further includes a heat conducting member, the heat conducting member is disposed between the first casing and the second casing, and one surface of the cell module with the largest area is in contact with the heat conducting member;
and the surface with the largest area of the other electric core is attached to the bottom wall surface of the groove body structure of the first accommodating part and the second accommodating part.
In any of the above technical solutions, further, a heat conduction medium is disposed inside the heat conduction member, the heat conduction member has a flat plate structure, and the thickness of the heat conduction member is 6-8.5 mm.
The application also provides a battery pack, including a plurality of above-mentioned arbitrary technical scheme electric core module, therefore, have all beneficial technological effects of this electric core module, here, no longer give unnecessary details.
Compared with the prior art, the beneficial effect of this application is:
the application provides a battery cell module includes: the battery comprises a first shell, a second shell and a battery core, wherein the first shell is provided with a plurality of first accommodating parts for accommodating battery cores; the second shell is provided with a plurality of second accommodating parts for accommodating the second accommodating parts of the battery cells; the first shell is positioned above the second shell, the number of the first accommodating parts is less than that of the second accommodating parts, and the first accommodating parts and the second accommodating parts are arranged in a staggered mode.
The application provides an electric core module can show stability and the security that improves electric core in the battery package to can make full use of battery package inner space, assembly process is convenient and assembly efficiency increases substantially.
The application provides a battery pack, including the aforesaid electric core module to the quantity of electric core module is a plurality of, therefore, sets up in the battery pack through dividing into multirow, multiseriate, multilayer matrix form with a plurality of electric core modules according to certain law, can make full use of battery pack's inner space, and can optimize the overall arrangement and the trend of busbar, pencil etc. in the battery pack, electric core has stronger stability and security and higher energy density in the battery pack.
Drawings
In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a battery cell module provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a second casing of the battery cell module provided in the embodiment of the present application;
fig. 3 is another view of a second casing of the battery cell module provided in the embodiment of the present application;
fig. 4 is another schematic structural diagram of a battery cell module provided in an embodiment of the present application.
Reference numerals:
1-a first housing, 101-a first accommodating part, 102-a first separating baffle, 2-a second housing, 201-a second accommodating part, 202-a second separating baffle, 3-a heat conducting member, 301-a liquid inlet pipe, 302-a liquid outlet pipe, 4-an electric core, 5-a guiding part, 6-a first step part, 7-a second step part, 8-a predetermined interval, 9-a fixing part, a-a first direction, b-a second direction.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments.
The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application.
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.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The following describes a cell module and a battery pack according to an embodiment of the present application with reference to fig. 1 to 4.
Referring to fig. 1 to 4, an embodiment of the present application provides a battery cell module, which includes a first casing 1, a second casing 2, and a heat conducting member 3, wherein the first casing 1 is formed with a plurality of first accommodating portions 101, the second casing 2 is formed with a plurality of second accommodating portions 201, and the first accommodating portions 101 and the second accommodating portions 201 are both used for accommodating battery cells 4. The first casing 1 is disposed above the second casing 2, and the number of the first accommodating portions 101 is different from the number of the second accommodating portions 201, the number of the first accommodating portions 101 is less than that of the second accommodating portions 201, preferably, the number of the first accommodating portions 101 is one less than that of the second accommodating portions 201, so that the number of the battery cells 4 accommodated in the first casing 1 is less than that of the battery cells 4 accommodated in the second casing 2, so that all the battery cells 4 in the first casing 1 and the second casing 2 are disposed in two layers, and the upper battery cells 4 in the first casing 1 and the lower battery cells 4 in the second casing 2 can be disposed in a staggered manner, such that the battery cells 4 are arranged in a manner that not only the upper battery cells 4 and the lower battery cells 4 are stacked more stably, but also the plurality of first accommodating portions 101 and the plurality of second accommodating portions 201 are arranged in sequence tightly, so that the distance between the battery cells 4 and the battery cells 4 can be reduced, therefore, more battery cores 4 can be arranged in the limited space in the battery pack, the utilization rate of the internal space of the battery pack is improved, the energy density of the battery pack is also improved, and the layout design of the electrical and thermal management scheme of the whole battery pack is facilitated.
Further, the first housing 1 and the second housing 2 each have a U-shaped groove structure. Specifically, taking the first casing 1 as an example, the first casing 1 includes a first wall plate and a second wall plate that are parallel to each other and a bottom plate that is disposed between the first wall plate and the second wall plate, the first wall plate, the bottom plate and the second wall plate enclose a U-shaped structure together, and a plurality of first baffles 102 are disposed on the bottom plate at equal intervals in sequence along the first direction a, so as to separate the internal space of the first casing 1 into a plurality of first accommodating portions 101 that are sequentially arranged along the first direction a, each first accommodating portion 101 has a U-shaped groove structure, and each accommodating portion is internally provided with a battery cell 4, that is, two battery cells 4 disposed along the first direction a are separated by the first baffles 102, so as to isolate two adjacent first accommodating portions 101, and reduce the distance between the two first accommodating portions 101 to the greatest extent, thereby avoiding space waste. The second housing 2 is similar to the first housing, and those skilled in the art can fully understand the same, and will not be described in detail herein.
It should be noted that, because the number of the first accommodating portions 101 is less than that of the second accommodating portions 201, the battery cells 4 in the first casing 1 and the battery cells 4 in the second casing 2 are arranged in a staggered manner, that is, the first barrier and the second barrier 202 are not arranged in an aligned manner, so that the stability of the staggered stacking of the upper battery cells 4 and the lower battery cells 4 is ensured.
Preferably, the number of the second accommodating portions 201 is 7 or 9, the number of the first accommodating portions 101 is 6 or 8, the number of the first accommodating portions 101 is one less than that of the second accommodating portions 201, and when the cells 4 are stacked in a layered and staggered manner, as many cells 4 as possible are accommodated, so that the energy density of the battery pack using the cell module is ensured.
Further, taking the second accommodating portion 201 as an example, the number of the battery cells 4 arranged in the second accommodating portion 201 may be one, at this time, the width of the second accommodating portion 201 is approximately equal to the width of each battery cell 4, and the length of the second accommodating portion 201 is approximately equal to the length of each battery cell 4, so as to ensure the stability of the battery cells 4 in the second accommodating portion 201. Preferably, in the present application, the number of the inner battery cells 4 in each second accommodating portion 201 is two, two battery cells 4 are sequentially arranged along the second direction b, wherein the first direction a is a length direction of the second casing 2 in the state shown in fig. 1, the second direction b is a width direction of the second casing 2, and at this time, the width (distributed along the first direction a) of the second accommodating portion 201 is approximately the same as the width of each of the battery cells 4, the length (distributed along the second direction b) of the second accommodating portion 201 is approximately the same as the sum of the lengths of the two battery cells 4, in the process of assembling the present battery cell module into the case of the battery pack, the battery cells 4 are first mounted in the respective second accommodating portions 201, make a plurality of electric cores 4 and second casing 2 as a whole by the assigned position department in the installation configuration battery package, first casing 1 is the same, can show assembly efficiency and the assembly precision that improves this electric core module.
More preferably, the both ends that distribute along second direction b of first casing 1 all are provided with fixed part 9 that has sheet structure, fixed part 9 is formed with the connecting hole, make with this electric core module install to the battery package in the back, fixed part 9 can with the fixed cross beam laminating in the battery package, use fasteners such as screw to pass on the connecting hole can be fixed in fixed cross beam with fixed part 9, can remove traditional electric core module from and adopt welded structure, it is fixed to need not use the ribbon, help simplifying the degree of difficulty and the loaded down with trivial details degree of the assembling process of this electric core module, also need not consider that single electric core 4 piles up one by one, the accumulative tolerance that produces during the installation.
Further, when the number of the battery cells 4 in the second accommodating portion 201 is two, the length X of a single battery cell 4 is 20-300mm, so that the total length of two battery cells 4 is also about 400-.
When electric core 4 quantity in second holding portion 201 is one, the length X of single electric core 4 is 400 supplyes 600mm, and width and height are unchangeable, merge the electric quantity with two electric cores 4 in other words, can simplify the structure of this electric core module and the loaded down with trivial details nature of assembling process.
In addition, because the electric core 4 in two adjacent first holding portions 101, the second holding portion 201 is separated by first separating and blocking 102 and second separating and blocking 202, compare in the isolated mode that current adopted the aerogel, need settle the aerogel between two electric cores 4 to need to remove the gum paper of aerogel before placing the aerogel, increased the loaded down with trivial details nature of assembling process, also increased the assembly time consuming, the cost of aerogel itself is very expensive simultaneously. The application provides an electricity core module can utilize automatic machine to carry out the orbit as required and carry out the rubber coating in first holding portion 101 and second holding portion 201, saves the cost of labor, can save the cost of using the aerogel simultaneously.
It should be noted that each electrical core 4 is provided with a terminal, wherein the terminal can be divided into an anode and a cathode, which is convenient for circuit connection and cable layout to realize high-voltage connection; the poles of the plurality of battery cells 4 in the plurality of second accommodation portions 201 that are distributed along the second direction b are distributed along the first direction a, that is, in this case, the poles of the battery cells 4 are disposed on the same side. And two electric cores 4 in same second holding portion 201 should deviate from the setting in second direction b, that is to say, the utmost point post of electric core 4 of two in second holding portion 201 all sets up outwards, and the terminal surface that deviates from the utmost point post of two electric cores 4 is close to each other or the laminating. The manner in which the battery cells 4 in the first accommodating portion 101 are disposed is the same as that described above, and those skilled in the art can fully understand the arrangement.
Preferably, the end faces of the two battery cells 4 in the second accommodating portion 201, which are provided with the poles, protrude 1mm to 3mm from the openings of the two end portions of the first accommodating portion 101 in the second direction b, so as to ensure that a reserved position relationship exists between the battery cells 4 and the second accommodating portion 201 (or the second housing 2) when the battery cells 4 are assembled into the second accommodating portion 201 by using the automation equipment, so as to ensure that the automation equipment can be automatically assembled by operating the reserved position, and meanwhile, the poles of the battery cells 4 protrude relative to the second housing 2, which can facilitate the connection and arrangement of a subsequent busbar, a cable, and the like. The first accommodating portion 101 and the battery cell 4 in the first accommodating portion 101 are the same.
Further, the number of the first housings 1 is two, the total number of the first accommodating portions 101 of the two first housings 1 is one less than the number of the second accommodating portions 201, or the first housing 1 is divided into two portions, the number of the first accommodating portions 101 of the two first housings 1 is the same, and the total number is one less than the number of the second accommodating portions 201. The two or two-part first housings 1 are spaced apart such that a predetermined space 8 is formed between adjacent two or two-part first housings 1, the predetermined space 8 being used for wiring or other necessary components of the battery pack.
Further, the first accommodating portion 101 and the second accommodating portion 201 each have a U-shaped groove structure with three openings, which are respectively a top end opening facing the bottom wall surface and two end openings distributed along the second direction b, wherein the top end opening of the first accommodating portion 101 faces downward, the top end opening of the second accommodating portion 201 faces upward, and both the inner surface of the bottom wall surface of the first accommodating portion 101 and the inner surface of the bottom wall surface of the second accommodating portion 201 are subjected to a glue coating process, so that the battery cell 4 can be fixed on the first casing 1 and in the second casing 2 in a gluing manner, thereby ensuring the stability of the battery cell 4 in the first casing 1 and the second casing 2.
Further, the first barrier 102 and the second barrier 202 both have a flat plate structure, and the first barrier 102 and the second barrier 202 are close to the top end openings of the first accommodating portion 101 and the second accommodating portion 201 and are appropriately thinned to form the guide portions 5, in the state shown in fig. 1 and 3, the thickness of the guide portions 5 of the first barrier 102 is gradually smaller along the direction from top to bottom, and the thickness of the guide portions 5 of the second barrier 202 is gradually increased along the direction from top to bottom, so as to facilitate the installation of the battery cell 4 in the first accommodating portion 101 and the second accommodating portion 201. Furthermore, the heights of the first barrier 102 and the second barrier 202 are slightly smaller than the thickness of the battery cell 4 and larger than the general thickness of the battery cell 4, so that the stability of the battery cell 4 in the first accommodating portion 101 and the second accommodating portion 201 can be ensured, and the first barrier 102 and the second barrier 202 can be prevented from interfering with the heat conduction effect between the battery cell 4 and the cooling member.
Preferably, the both end wall plates of the first case 1 and the both end wall plates of the second case 2 are also formed with the guide portions 5.
Further, because the first casing 1 and the second casing 2 are arranged in a staggered manner, the first step portion 6 and the second step portion 7 are respectively formed between the first casing 1 and the second casing at two ends of the battery cell module in the first direction a, the width of the first step portion 6 is preferably Y/3-Y/2, and the width of the second step portion 7 is preferably Y/5-Y/3, such an arrangement manner can ensure that a reserved interval is generated between the two first casings 1, so that a better wiring harness space is provided in the reserved interval, the arrangement and the trend of cables are optimized, and meanwhile, the first step portion 6 and the second step portion 7 can also be used as an installation space for installing other necessary components of a battery pack, such as a bus bar, a pole and the like.
Further, the heat conducting member 3 has a flat plate structure, the interior of the flat plate structure is hollow, a heat conducting medium flows inside the heat conducting member 3, the heat conducting member 3 is disposed between the first casing 1 and the second casing 2, and the lower surface of the battery cell 4 located in the first casing 1 and the upper surface of the battery cell 4 located in the second casing 2 are respectively in contact with the upper and lower surfaces of the heat conducting member 3. Preferably, the length and width of the heat conductive member 3 are not less than those of the second housing 2. More preferably, the battery cells 4 are disposed in the first accommodating portion 101 and the second accommodating portion 201 in a flat manner, so that two wall surfaces with the largest area of the battery cells 4 are used as the upper surface and the lower surface, so that a larger bonding area is formed between the upper surface of the battery cell 4 in the first accommodating portion 101 and the bottom wall surface of the first accommodating portion 101, the lower surface and the heat-conducting member 3 also have a larger contact area, that is, a heat-conducting area, and the battery cells 4 in the second accommodating portion 201 are the same, so that the bonding strength between the battery cell 4 and the first and second housings 1 and 2 can be ensured, the heat-conducting effect and the heat-conducting efficiency between the battery cell 4 and the heat-conducting member 3 can be ensured, and the battery cells 4 stacked in this way are also more stable and more reliable, and can bear stronger strength.
The heat conduction medium in the heat conduction member 3 can be cooling liquid to absorb the heat that the electric core 4 discharged in-process and released like summer under high temperature environment, the heat conduction medium can also be the liquid that has certain temperature after the intensification, carries out the heating of certain degree like winter to electric core 4 under low temperature environment, in order to ensure that electric core 4 can normally work in low temperature environment.
In addition, it should be noted that, because the wall surface with the larger area of the battery cell 4 is in contact with the heat conducting member 3, the thickness of the heat conducting member 3 can bear the weight of the first housing 1 and the plurality of battery cells 4 under the condition that the thickness is 6-8.5mm and is thinner, and the heat conducting member 3 is prevented from being damaged easily due to the excessive local pressure of the heat conducting member 3.
Further, the battery cell 4 is fixed to the heat conducting member 3 by gluing, and preferably, the glue fixed between the battery cell 4 and the first casing 1 and the second casing 2 and the glue between the battery cell 4 and the heat conducting member 3 are both structural glue with certain fluidity, so as to eliminate the problem of insufficient bonding area caused by the flatness of the first casing 1, the second casing 2 and the heat conducting member 3, and ensure the bonding strength of the battery cell 4.
Further, heat conduction member 3 is provided with feed liquor pipe 301 and drain pipe 302, feed liquor pipe 301 is used for injecting heat-conducting medium into heat conduction member 3, drain pipe 302 is used for discharging the heat-conducting medium in heat conduction member 3, preferably, feed liquor pipe 301 and drain pipe 302 set up in the intermediate position of the upper surface of heat conduction member 3, and set up along second direction b interval, make feed liquor pipe 301 and drain pipe 302 just can be located the predetermined interval between two first casings 1, the wall influences arranging of electric core 4, and make full use of the inner space of battery package.
To sum up, the electric core module that this application provided can show stability and the security that improves electric core in the battery package to can make full use of battery package inner space, the assembling process is convenient and assembly efficiency improves by a wide margin.
The embodiment of this application still provides a battery package, including a plurality of above-mentioned any embodiment the electricity core module, therefore, have all beneficial technological effects of this electricity core module, here, no longer describe repeatedly.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. The utility model provides a battery cell module which characterized in that includes: the battery pack comprises a first shell, a second shell and a battery, wherein the first shell is provided with a plurality of first accommodating parts for accommodating battery cells;
a second casing formed with a plurality of second accommodating portions for accommodating the battery cells;
the first shell is positioned above the second shell, the number of the first accommodating parts is less than that of the second accommodating parts, and the first accommodating parts and the second accommodating parts are arranged in a staggered mode.
2. The cell module of claim 1, wherein the first casing and the second casing each have a U-shaped structure; a plurality of first baffles are sequentially arranged in the first shell along a first direction at intervals so as to divide the inner space of the first shell into a plurality of first accommodating parts arranged along the first direction;
a plurality of second baffles are sequentially arranged in the second shell along a first direction at intervals so as to divide the inner space of the second shell into a plurality of second accommodating parts arranged along the first direction;
the first barrier is not aligned with the second barrier.
3. The battery cell module of claim 2, wherein at least one battery cell is disposed in each first accommodating portion, and when the number of battery cells in each first accommodating portion is more than one, a plurality of battery cells are disposed at intervals along the second direction;
at least one battery cell is arranged in each second accommodating part, and when the number of the battery cells in each second accommodating part is more than one, a plurality of the battery cells are arranged at intervals along a second direction;
the second direction is perpendicular to the first direction.
4. The battery cell module of claim 2, wherein the number of the first casings is at least two, at least two of the first casings are sequentially arranged along the first direction, and a predetermined interval is formed between two adjacent first casings.
5. The cell module of claim 2, wherein the first barrier and the second barrier each have a height that is less than the thickness of the cell;
the first separating block and the second separating block are both provided with guide parts.
6. The cell module according to any one of claims 1 to 5, wherein a first step is formed between one of the first casings and the second casing;
a second step portion is formed between the other of the plurality of first housings and the second housing;
the width of the first step part is 1/3-1/2 of the width of the battery cell; the width of the second step part is 1/5-1/3 of the width of the battery cell.
7. The battery cell module of claim 6, wherein the battery cell has a length X, X is 200mm or more and 600mm or less; the width of the battery cell is Y, and Y is more than or equal to 85mm and less than or equal to 175 mm; the thickness Z of the battery cell is not less than 50mm and not more than 61 mm.
8. The cell module of any one of claims 1 to 5, further comprising a heat conducting member disposed between the first casing and the second casing, wherein the largest cell area surface is in contact with the heat conducting member;
and the surface with the largest area of the other electric core is attached to the bottom wall surface of the groove body structure of the first accommodating part and the second accommodating part.
9. The battery cell module of claim 8, wherein the heat conducting member is provided with a heat conducting medium inside, the heat conducting member has a flat plate structure, and the thickness of the heat conducting member is 6-8.5 mm.
10. A battery pack, comprising the cell module set defined in any one of claims 1 to 9, wherein the number of the cell modules is plural.
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| CN115084762A (en) * | 2022-07-20 | 2022-09-20 | 天津市捷威动力工业有限公司 | Battery pack and electric automobile |
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| CN114400414B (en) | 2023-12-05 |
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