CN115084762B - Battery pack and electric automobile - Google Patents
Battery pack and electric automobile Download PDFInfo
- Publication number
- CN115084762B CN115084762B CN202210857757.7A CN202210857757A CN115084762B CN 115084762 B CN115084762 B CN 115084762B CN 202210857757 A CN202210857757 A CN 202210857757A CN 115084762 B CN115084762 B CN 115084762B
- Authority
- CN
- China
- Prior art keywords
- unit
- cover
- battery pack
- battery
- battery cell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000003491 array Methods 0.000 claims abstract description 14
- 230000003993 interaction Effects 0.000 claims description 93
- 238000007789 sealing Methods 0.000 claims description 59
- 239000000853 adhesive Substances 0.000 claims description 21
- 230000001070 adhesive effect Effects 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 17
- 230000002452 interceptive effect Effects 0.000 claims description 11
- 239000002131 composite material Substances 0.000 claims description 9
- 238000004880 explosion Methods 0.000 claims description 8
- 239000012774 insulation material Substances 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 6
- 230000004308 accommodation Effects 0.000 claims description 3
- 239000012212 insulator Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000001816 cooling Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000003365 glass fiber Substances 0.000 description 4
- 239000012782 phase change material Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 206010035148 Plague Diseases 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- 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
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
- H01M10/6555—Rods or plates arranged between the cells
-
- 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
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
- H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
-
- 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
-
- 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
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Aviation & Aerospace Engineering (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention provides a battery pack and an electric automobile, wherein the battery pack comprises a box body and a box cover matched with the box body, and an accommodating space is formed between the box body and the box cover; a battery cell stacking unit is arranged in the accommodating space and comprises at least two battery cell clusters which are sequentially arranged along the thickness direction; the battery cell unit cluster comprises two rows of battery cell arrays, and each battery cell array comprises at least two battery cells which are sequentially arranged along the length direction. The battery pack does not use the traditional module structure, but directly groups the battery cells into the battery pack, so that the assembly process of the battery pack is simplified, the number of parts is reduced, the volume of the battery pack is reduced, the production cost of the battery pack is reduced, and the energy density of the battery pack is improved.
Description
Technical Field
The invention belongs to the technical field of power batteries, relates to a battery pack, and particularly relates to a battery pack and an electric automobile.
Background
With the development of new energy automobile industry, pure electric vehicles are increasingly accepted by users, meanwhile, the problems of short endurance and safe reliability which always plague user experience are not thoroughly solved, and the power battery as a core part of the electric vehicle needs to be further innovated and iterated.
The battery pack is used as an important component of the electric automobile, and the weight energy density ratio or the volume energy density ratio of the battery pack is one of important indexes for measuring the performance of the battery pack. The existing battery pack is mainly formed by assembling a plurality of single battery cells into a battery module and then packaging the battery modules into the battery pack.
Therefore, how to design a battery pack with simple structure, less parts, simple assembly process, low manufacturing cost and lighter weight becomes the technical problem to be solved in the prior art.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a battery pack and an electric automobile, wherein the battery pack does not use a traditional module structure, and the battery cells are directly assembled into the battery pack, so that the assembly process of the battery pack is simplified, the number of parts is reduced, the volume of the battery pack is reduced, the production cost of the battery pack is reduced, and the energy density of the battery pack is improved.
To achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the invention provides a battery pack, which comprises a box body and a box cover matched with the box body, wherein an accommodating space is formed between the box body and the box cover;
a battery cell stacking unit is arranged in the accommodating space and comprises at least two battery cell clusters which are sequentially arranged along the thickness direction; the battery cell unit cluster comprises two rows of battery cell arrays, and each battery cell array comprises at least two battery cells which are sequentially arranged along the length direction.
As a preferred technical scheme of the invention, the cell unit cluster further comprises a thermal management plate arranged between two rows of the cell arrays, and a liquid flow channel is arranged in the thermal management plate;
the box body is provided with a thermal management internal interface which is communicated with the liquid flow channel.
Preferably, the cell clusters further comprise protection pieces arranged at two ends of the cell array.
As a preferable technical scheme of the invention, two rows of the battery cells in the battery cell array are arranged in a staggered manner.
Preferably, in the two rows of the cells in the cell array, the overlapping area of the two cells is not more than one half of the side area of the cells.
Preferably, structural adhesive is filled between the battery cell clusters and the box body, and elastic heat insulation materials are filled between adjacent battery cell clusters; and heat conduction structural adhesive is filled between the battery cell array and the heat management plate, and structural adhesive is filled between adjacent battery cells of the battery cell array.
As a preferable technical scheme of the invention, expansion constraint structural members are arranged at two ends of the cell stacking units along the arrangement direction of the cell unit clusters.
Preferably, a binding band is circumferentially arranged on the outer wall of the cell stacking unit.
As a preferred technical scheme of the invention, a busbar assembly connected with the cell stacking unit is further arranged in the accommodating space, and the busbar assembly is arranged at the top of the cell stacking unit.
Preferably, an insulating member positioned at the top of the busbar assembly is further provided in the accommodating space.
Preferably, an electrical interaction unit connected with the busbar assembly is further arranged in the accommodating space; the box cover is provided with a high-low voltage plug-in unit avoiding hole, and the electric interaction unit is connected with an electric component outside the battery pack through the high-low voltage plug-in unit avoiding hole.
As a preferred embodiment of the present invention, the busbar assembly includes a busbar, and the busbar is connected to a post on a cell in the cell stacking unit;
the busbar assembly also includes a flexible collection harness connected to the busbar and a first low voltage plug-in.
As a preferred technical solution of the present invention, the electrical interaction unit integrates a high voltage plug-in and a second low voltage plug-in;
the panel of the electric interaction unit is provided with a sealing mounting hole, the case cover is provided with a case cover sealing hole, and the bolt passes through the sealing mounting hole and the case cover sealing hole to realize the sealing between the case cover and the panel of the electric interaction unit.
As a preferable technical scheme of the invention, the box cover comprises a main body box cover and an electric interaction unit box cover connected with one end of the main body box cover;
the battery cell stacking unit and the busbar assembly are arranged between the main body box cover and the box body, and the electric interaction unit is arranged between the electric interaction unit box cover and the box body.
Preferably, the main body cover includes a main body cover body, and the electric interactive unit cover includes an electric interactive unit cover body;
the main body cover body and the electric interaction unit cover body are positioned on the same horizontal plane, the outer edge of the main body cover body extends downwards in an inclined mode to form a main body cover side plate, and the outer edge of the electric interaction unit cover body extends downwards in an inclined mode to form an electric interaction unit cover side plate;
the anti-explosion device comprises a main body box cover side plate, and is characterized in that at least one anti-explosion valve mounting opening is formed in the main body box cover side plate, an anti-explosion valve is arranged on the anti-explosion valve mounting opening, and a high-low voltage plug-in unit avoiding hole is formed in the electric interaction unit box cover side plate.
Preferably, one end of the main body cover side plate, which is far away from the main body cover body, and one end of the electric interaction unit cover side plate, which is far away from the electric interaction unit cover body, are positioned on the same horizontal plane, and the outer edges of the main body cover side plate and the electric interaction unit cover side plate extend outwards respectively along the horizontal direction to form a cover sealing surface;
the box cover is characterized in that at least one sealing surface fixing hole is formed in the sealing surface of the box cover, and a sealing surface fixing hole corresponding to the sealing surface fixing hole is formed in the box body.
Preferably, the cover comprises a sheet metal part or a composite moulding.
As a preferable technical scheme of the invention, the box body comprises a bottom plate and an insulating layer arranged on the surface of the bottom plate, which faces to the box cover.
Preferably, a thermal management external interface is arranged on the side surface of the bottom plate, a thermal management internal interface is arranged on the surface of one side, facing the case cover, of the bottom plate, and a runner is arranged in the bottom plate and communicates the thermal management external interface with the thermal management internal interface.
In a second aspect, the present invention provides an electric vehicle, which includes the battery pack of the first aspect.
Compared with the prior art, the invention has the beneficial effects that:
(1) The battery pack does not use the traditional module structure, but directly groups the battery cells, so that the assembly process of the battery pack is simplified, the number of parts is reduced, the volume of the battery pack is reduced, the production cost of the battery pack is reduced, and the energy density of the battery pack is improved;
(2) In the battery pack, the thermal management plate and the box body are physically connected and functionally integrated, and the cooling flow channel in the thermal management plate is communicated with the thermal management internal interface on the box body, so that the liquid cooling function of the battery pack is realized;
(3) The box body of the battery pack is of a flattened design, the frame structure of the box body is eliminated, the box body and the battery core stacking unit can extend to the periphery continuously, the weight and the cost of the battery pack are reduced, and meanwhile, the battery pack can be better adapted to electric vehicles with different wheel base and different wheel base.
Drawings
Fig. 1 is a schematic view of a battery pack according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a cell stacking unit according to an embodiment of the present invention.
Fig. 3 is an exploded view showing the structure of a battery pack according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a case cover according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a case according to an embodiment of the present invention.
Wherein, 1-the box body; 2-a case cover; 3-a cell stack unit; 4-cell clusters; 5-cell array; 6-an electric core; 7-a thermal management plate; 8-thermal management internal interface; 9-guard; 10-expansion constraint structure; 11-a strap; 12-a busbar assembly; 13-an electrical interaction unit; 14-a main body cover body; 15-an electrical interactive unit case cover body; 16-body case lid side panels; 17-electrical interactive unit case cover side panels; 18-an explosion-proof valve mounting port; 19-an explosion-proof valve; 20-high-low pressure plug-in avoiding holes; 21—a lid sealing surface; 22-a bottom plate; 23-an insulating layer; 24-thermal management external interface; 25-the whole vehicle is connected.
Detailed Description
It is to be understood that in the description of the present invention, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
It should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
The technical scheme of the invention is further described by the following specific embodiments.
In one embodiment, as shown in fig. 1, the invention provides a battery pack, which comprises a box body 1 and a box cover 2 matched with the box body 1, wherein an accommodating space is formed between the box body 1 and the box cover 2;
as shown in fig. 2, a cell stacking unit 3 is disposed in the accommodation space, and the cell stacking unit 3 includes at least two cell clusters 4 sequentially arranged in the thickness direction; the cell unit cluster 4 includes two rows of cell arrays 5, and the cell arrays 5 include at least two cells 6 sequentially arranged in the length direction.
According to the invention, the battery pack does not use a traditional module structure, the battery cells 6 are arranged to form the battery cell array 5, the battery cell array 5 is combined to form the battery cell unit cluster 4, and finally the battery cell unit cluster 4 is arranged to form the battery cell stacking unit 3, and the battery cell stacking unit 3 is directly arranged in the accommodating space between the same battery pack and the case cover 2, so that the battery pack is directly assembled, the assembly process of the battery pack is simplified, the number of parts is reduced, the volume of the battery pack is reduced, the production cost of the battery pack is reduced, and the energy density of the battery pack is improved.
Further, the cell unit cluster 4 further comprises a thermal management plate 7 arranged between the two rows of cell arrays 5, and a liquid flow channel is arranged in the thermal management plate 7;
the box body 1 is provided with a thermal management internal interface 8, and the thermal management internal interface 8 is communicated with the liquid flow channel.
The liquid flow channel is used for realizing the functions of temperature equalization, high-temperature cooling and heat dissipation and low-temperature liquid heating of the battery cell 6.
According to the invention, the thermal management board 7 is physically connected with the box body 1 and functionally integrated, and the cooling flow channel in the thermal management board 7 is communicated with the thermal management internal interface 8 on the box body 1, so that the liquid cooling function of the battery pack is realized.
Further, the cell clusters 4 further comprise a guard 9 arranged at both ends of the cell array 5.
The protection piece 9 is used for protecting the cell array 5, so that the cell array 5 is prevented from being directly impacted by the outside.
Further, two rows of cells in the cell array 5 are arranged in a staggered manner.
The battery cells 6 in the battery cell array 5 are arranged in a staggered manner and used for preventing the bus bars from blocking the exhaust of the battery cell explosion-proof valve.
Further, in the two rows of cells in the cell array 5, the overlapping area of the two cells 6 is not more than one half of the side area of the cells 6.
When the overlapping area of two battery cells 6 in the battery cell array 5 is larger than one half of the side area of the battery cells 6, the exhaust of the battery cell explosion-proof valve is easy to be blocked by a bus.
Further, structural adhesive is filled between the cell clusters 4 and the box body 1, and elastic heat insulation materials are filled between adjacent cell clusters 4; and heat conduction structural adhesive is filled between the battery cell array 5 and the heat management plate 7, and structural adhesive is filled between adjacent battery cells 6 of the battery cell array 5.
In the invention, the structural adhesive is filled between the cell clusters 4 and the box body 1 to restrict the cell clusters 4, so that the cell clusters 4 are prevented from shifting in the use process of the battery pack.
According to the invention, the elastic heat insulation material is filled between the adjacent cell clusters 4 and used for absorbing expansion displacement of the cells 6 caused by charging, and has a heat insulation effect, so that heat is prevented from being transferred and diffused between the adjacent cell clusters 4, and enough buffer space is reserved between the adjacent cell clusters 4 and used for absorbing tolerance generated in the manufacturing process.
According to the invention, the heat conduction structural adhesive is filled between the battery cell array 5 and the heat management plate 7, so that the battery cell array 5 is fixed on one hand, and the battery cell unit cluster 4 is formed into an integral structure, thereby improving the integral rigidity of the battery pack, and on the other hand, the battery pack is used for temperature isolation and equalization, and the temperature difference is prevented from being overlarge due to the rapid heat transfer between the battery cell 6 and the heat management plate 7.
In the invention, the structural adhesive is filled between the adjacent cells 6 of the cell array 5 and used for improving the shearing resistance between the cells 6, thereby preventing the dislocation of the cells 6 in the use process of the battery pack.
Further, as shown in fig. 3, the cell stack units 3 are provided with expansion constraint structures 10 at both ends in the arrangement direction of the cell clusters 4.
The expansion constraint structure 10 is used for absorbing expansion displacement of the cell stacking unit 3 caused by charging and also used for keeping enough buffer space between the cell stacking unit 3 and the case cover 2.
Further, a strap 11 is provided on the outer wall of the cell stack unit 3 in the circumferential direction.
The binding band 11 is used for fixing the cell stacking unit 3, so that the cells 6 in the cell stacking unit 3 are prevented from being scattered when the battery pack is used.
The material of the strap 11 in the present invention includes a metal strap and/or a non-metal strap.
Further, a busbar assembly 12 connected with the cell stacking unit 3 is further disposed in the accommodating space, and the busbar assembly 12 is disposed on the top of the cell stacking unit 3.
The invention welds the busbar assembly 12 to the poles of the cells 6 in the cell stack unit 3 by a laser welding process.
Optionally, the busbar assembly 12 is provided with positioning holes for fixedly assembling the busbar assembly 12 on the cell stack unit 3.
The bus bar is used for realizing series-parallel connection among the battery cells 6 in the battery cell stacking unit 3.
Further, an insulator is provided in the accommodation space at the top of the busbar assembly 12.
The insulator is used for preventing the short circuit of the battery cell 6.
Further, an electrical interaction unit 13 connected with the busbar assembly 12 is also arranged in the accommodating space; the case cover 2 is provided with a high-low voltage plug-in unit avoiding hole 20, and the electric interaction unit 13 is connected with an electric component for the outside of the battery pack through the high-low voltage plug-in unit avoiding hole 20.
Optionally, the electrical interaction unit 13 includes an electrical interaction unit panel, where the electrical interaction unit panel seals the high and low voltage plug-in avoidance hole 20 on the case cover 2, and the cell stacking unit 3 in the accommodating space is protected.
Further, the busbar assembly 12 includes a busbar connected to the post on the cell 6 in the cell stack unit 3;
the busbar assembly 12 also includes a flexible collection harness and a first low voltage plug-in that connect to the busbar.
The first low-voltage plug-in unit and the flexible acquisition wire harness are used for acquiring and transmitting the voltage and the temperature of the battery pack.
Further, the electrical interaction unit 13 integrates a high voltage plug-in with a second low voltage plug-in;
the panel of the electric interaction unit 13 is provided with a sealing mounting hole, the box cover 2 is provided with a box cover sealing hole, and after the bolts penetrate through the sealing mounting hole and the box cover sealing hole, the box cover 2 and the panel of the electric interaction unit 13 are sealed.
The arrangement of the sealing mounting holes is beneficial to the integral sealing of the battery pack, and the sealing requirement of the battery pack is met.
Further, as shown in fig. 4, the case cover 2 includes a main body case cover and an electric interactive unit case cover connected to one end of the main body case cover;
the cell stack unit 3 and the busbar assembly 12 are disposed between the main body case cover and the case 1, and the electrical interaction unit 13 is disposed between the electrical interaction unit case cover and the case 1.
According to the invention, the battery core stacking unit 3 is arranged between the main body box cover and the box body 1, and the electric interaction unit 13 is arranged between the electric interaction unit box cover and the box body 1, so that the space utilization rate between the box cover 2 and the box body 1 can be increased, and the volume of the battery pack is reduced.
Further, the main body cover includes a main body cover body 14, and the electric interactive unit cover includes an electric interactive unit cover body 15;
the main body cover body 14 and the electric interaction unit cover body 15 are positioned on the same horizontal plane, the outer edge of the main body cover body 14 extends downwards in an inclined mode to form a main body cover side plate 16, and the outer edge of the electric interaction unit cover body 15 extends downwards in an inclined mode to form an electric interaction unit cover side plate 17;
at least one explosion-proof valve mounting opening 18 is arranged on the side plate 16 of the main body box cover, an explosion-proof valve 19 is arranged on the explosion-proof valve mounting opening 18, and a high-low voltage plug-in unit avoiding hole 20 is arranged on the side plate 17 of the electric interaction unit box cover.
According to the invention, the explosion-proof valve 19 is arranged on the case cover 2, and when the internal air pressure of the battery pack reaches a certain value, the battery pack is exploded from the explosion-proof valve 19 of the case cover 2.
Further, one end of the main case cover side plate 16, which is far away from the main case cover body 14, is positioned on the same horizontal plane as one end of the electric interaction unit case cover side plate 17, which is far away from the electric interaction unit case cover body 15, and the outer edges of the main case cover side plate 16 and the electric interaction unit case cover side plate 17 extend outwards along the horizontal direction to form case cover sealing surfaces 21 respectively;
at least one sealing surface fixing hole is formed in the case cover sealing surface 21, and a sealing surface fixing hole corresponding to the sealing surface fixing hole is formed in the case body 1.
The sealing surface fixing holes arranged on the sealing surface of the box cover and the sealing surface fixing holes arranged on the box body 1 are matched, so that the box cover 2 is fixedly connected with the box body 1, and the sealing surface of the box cover is matched with the box body 1, thereby realizing the sealing requirement of the battery pack.
Further, the cover 2 comprises a sheet metal part or a composite molding.
The sheet metal part and the composite material molding part have light weight and simple processing technology, and are beneficial to reducing the weight of the battery pack and reducing the production cost of the battery pack.
The material of the composite material molding part comprises any one or a combination of at least two of an SMC composite material, a PP+glass fiber material and a phase change material, and typical but non-limiting combinations comprise a combination of the SMC composite material and the PP+glass fiber material, a combination of the PP+glass fiber material and the phase change material or a combination of the SMC composite material, the PP+glass fiber material and the phase change material.
Further, as shown in fig. 5, the case 1 includes a bottom plate 22 and an insulating layer 23 provided on a surface of the bottom plate 22 facing the case cover 2.
Alternatively, the length of the cell stack units 3 in the arrangement direction of the cell clusters 4 may be adjusted by increasing or decreasing the number of the cell clusters 4, thereby adjusting the length of the battery pack in the arrangement direction of the cell clusters 4.
Alternatively, the length of the cell stacking unit 3 along the arrangement direction of the cells 6 in the cell array 5 may be adjusted by increasing or decreasing the number of the cells 6 in the cell array 5, thereby adjusting the length of the battery pack along the arrangement direction of the cells 6 in the cell array 5.
According to the battery pack, the box body 1 is of a flattened design, the frame structure of the box body 1 is omitted, the box body 1 and the battery cell stacking unit 3 can extend to the periphery continuously, the weight and cost of the battery pack are reduced, and meanwhile, the battery pack can be better adapted to electric vehicles with different wheel base and different axle base.
Optionally, the battery pack further comprises a whole vehicle fastening point 25, and the battery pack is fixed on the electric automobile through the whole vehicle fastening point 25.
Further, a thermal management external port 24 is provided on a side surface of the bottom plate 22, a thermal management internal port 8 is provided on a side surface of the bottom plate 22 facing the case cover 2, and a flow passage is provided in the bottom plate 22, the flow passage communicating the thermal management external port with the thermal management internal port.
In the invention, a cooling flow passage in the thermal management plate 7 is communicated with a thermal management internal interface 8 on the box body 1, and after liquid in the cooling flow passage flows into the box body 1, the interaction between the battery pack and the whole vehicle thermal management system is realized through a thermal management external interface 24.
In another embodiment, the invention provides an electric vehicle, which comprises the battery pack.
Example 1
The embodiment provides a battery pack, which comprises a box body and a box cover matched with the box body, wherein an accommodating space is formed between the box body and the box cover; the accommodating space is internally provided with a cell stacking unit, and the cell stacking unit comprises five cell clusters which are sequentially arranged along the thickness direction; the battery cell unit cluster comprises two rows of battery cell arrays, wherein each battery cell array comprises six battery cells which are sequentially arranged along the length direction; the cells in the cell array are arranged in a staggered manner, and the amount of the overlapped cells in the cell array is one third;
the battery cell unit cluster further comprises a heat management plate arranged between the two rows of battery cell arrays, a liquid flow channel is arranged in the heat management plate, a heat management internal interface is arranged on the box body, and the heat management internal interface is communicated with the liquid flow channel; structural adhesive is filled between the cell clusters and the box body, and elastic heat insulation materials are filled between adjacent cell clusters; a heat conduction structural adhesive is filled between the battery cell array and the heat management plate, and a structural adhesive is filled between adjacent battery cells of the battery cell array; the cell unit cluster also comprises protection pieces arranged at two ends of the cell array; the two ends of the cell stacking unit along the arrangement direction of the cell clusters are provided with expansion constraint structural members; the outer wall of the battery cell stacking unit is provided with a binding band along the circumferential direction;
a bus bar assembly connected with the battery cell stacking unit is further arranged in the accommodating space, and the bus bar assembly is arranged at the top of the battery cell stacking unit; an insulating piece positioned at the top of the busbar assembly is also arranged in the accommodating space;
an electric interaction unit connected with the busbar assembly is also arranged in the accommodating space; the box cover is provided with a high-low voltage plug-in unit avoiding hole, and the electric interaction unit is electrically connected with an external electric appliance through the high-low voltage plug-in unit avoiding hole; the busbar assembly comprises a busbar which is connected with a pole on a battery cell in the battery cell stacking unit; the busbar assembly further includes a first low voltage plug and a flexible connector connected to the busbar; the panel of the electric interaction unit is provided with a sealing mounting hole, and the high-voltage plug-in and the second low-voltage plug-in are respectively and electrically connected with an external electric appliance through the sealing mounting hole;
the box cover comprises a main body box cover and an electric interaction unit box cover connected with one end of the main body box cover, the battery core stacking unit and the busbar assembly are arranged between the main body box cover and the box body, and the electric interaction unit is arranged between the electric interaction unit box cover and the box body; the main body box cover comprises a main body box cover body, the electric interaction unit box cover comprises an electric interaction unit box cover body, the main body box cover body and the electric interaction unit box cover body are located on the same horizontal plane, the outer edge of the main body box cover body obliquely downwards extends to form a main body box cover side plate, the outer edge of the electric interaction unit box cover body obliquely downwards extends to form an electric interaction unit box cover side plate, six explosion-proof valve mounting openings are formed in the main body box cover side plate, an explosion-proof valve is mounted on each explosion-proof valve mounting opening, and high-low voltage plug-in unit avoiding holes are formed in the electric interaction unit box cover side plate; one end of the main body box cover side plate, which is far away from the main body box cover body, is positioned on the same horizontal plane with one end of the electric interaction unit box cover side plate, which is far away from the electric interaction unit box cover body, and the outer edges of the main body box cover side plate and the electric interaction unit box cover side plate extend outwards along the horizontal direction respectively to form box cover sealing surfaces, eight sealing surface fixing holes are formed in the box cover sealing surfaces, and sealing surface fixing holes corresponding to the box cover sealing surface fixing holes are formed in the box body; the case cover comprises an SMC composite material molding part;
the box body comprises a bottom plate and an insulating layer arranged on the surface of one side of the bottom plate facing the box cover; the side of the bottom plate is provided with a thermal management external interface, and the surface of one side of the bottom plate facing the box cover is provided with a thermal management internal interface.
The embodiment also provides an electric automobile, which comprises the battery pack.
Example 2
The embodiment provides a battery pack, which comprises a box body and a box cover matched with the box body, wherein an accommodating space is formed between the box body and the box cover; a battery cell stacking unit is arranged in the accommodating space and comprises two battery cell clusters which are sequentially arranged along the thickness direction; the battery cell unit cluster comprises two rows of battery cell arrays, wherein each battery cell array comprises six battery cells which are sequentially arranged along the length direction; the electric cores in the electric core array are arranged in a staggered way, and the overlapped electric core quantity in the electric core array is one quarter;
the battery cell unit cluster further comprises a heat management plate arranged between the two rows of battery cell arrays, a liquid flow channel is arranged in the heat management plate, a heat management internal interface is arranged on the box body, and the heat management internal interface is communicated with the liquid flow channel; structural adhesive is filled between the cell clusters and the box body, and elastic heat insulation materials are filled between adjacent cell clusters; a heat conduction structural adhesive is filled between the battery cell array and the heat management plate, and a structural adhesive is filled between adjacent battery cells of the battery cell array; the cell unit cluster also comprises protection pieces arranged at two ends of the cell array; the two ends of the cell stacking unit along the arrangement direction of the cell clusters are provided with expansion constraint structural members; the outer wall of the battery cell stacking unit is provided with a binding band along the circumferential direction;
a bus bar assembly connected with the battery cell stacking unit is further arranged in the accommodating space, and the bus bar assembly is arranged at the top of the battery cell stacking unit; an insulating piece positioned at the top of the busbar assembly is also arranged in the accommodating space;
an electric interaction unit connected with the busbar assembly is also arranged in the accommodating space; the box cover is provided with a high-low voltage plug-in unit avoiding hole, and the electric interaction unit is electrically connected with an external electric appliance through the high-low voltage plug-in unit avoiding hole; the busbar assembly comprises a busbar which is connected with a pole on a battery cell in the battery cell stacking unit; the busbar assembly further includes a first low voltage plug and a flexible connector connected to the busbar; the electric interaction unit integrates a high-voltage plug-in unit and a second low-voltage plug-in unit, a sealing mounting hole is formed in a panel of the electric interaction unit, and the high-voltage plug-in unit and the second low-voltage plug-in unit are electrically connected with an external electric appliance through the sealing mounting hole respectively.
The box cover comprises a main body box cover and an electric interaction unit box cover connected with one end of the main body box cover, the battery cell stacking unit and the busbar assembly are arranged between the main body box cover and the box body, and the electric interaction unit is arranged between the electric interaction unit box cover and the box body; the main body box cover comprises a main body box cover body, the electric interaction unit box cover comprises an electric interaction unit box cover body, the main body box cover body and the electric interaction unit box cover body are located on the same horizontal plane, the outer edge of the main body box cover body obliquely downwards extends to form a main body box cover side plate, the outer edge of the electric interaction unit box cover body obliquely downwards extends to form an electric interaction unit box cover side plate, an explosion-proof valve mounting opening is formed in the main body box cover side plate, an explosion-proof valve is mounted on the explosion-proof valve mounting opening, and a high-low voltage plug-in unit avoiding hole is formed in the electric interaction unit box cover side plate; one end of the main body box cover side plate, which is far away from the main body box cover body, is positioned on the same horizontal plane with one end of the electric interaction unit box cover side plate, which is far away from the electric interaction unit box cover body, and the outer edges of the main body box cover side plate and the electric interaction unit box cover side plate extend outwards along the horizontal direction respectively to form box cover sealing surfaces, eight sealing surface fixing holes are formed in the box cover sealing surfaces, and sealing surface fixing holes corresponding to the box cover sealing surface fixing holes are formed in the box body; the case cover comprises a sheet metal part;
the box body comprises a bottom plate and an insulating layer arranged on the surface of one side of the bottom plate facing the box cover; the side of the bottom plate is provided with a thermal management external interface, and the surface of one side of the bottom plate, facing the box cover, is provided with a thermal management internal interface.
The embodiment also provides an electric automobile, which comprises the battery pack.
Example 3
The embodiment provides a battery pack, which comprises a box body and a box cover matched with the box body, wherein an accommodating space is formed between the box body and the box cover; a battery cell stacking unit is arranged in the accommodating space and comprises six battery cell clusters which are sequentially arranged along the thickness direction; the battery cell unit cluster comprises two rows of battery cell arrays, wherein each battery cell array comprises two battery cells which are sequentially arranged along the length direction; the electric cores in the electric core array are arranged in a staggered way, and the overlapped electric core quantity in the electric core array is one half;
the battery cell unit cluster further comprises a heat management plate arranged between the two rows of battery cell arrays, a liquid flow channel is arranged in the heat management plate, a heat management internal interface is arranged on the box body, and the heat management internal interface is communicated with the liquid flow channel; structural adhesive is filled between the cell clusters and the box body, and elastic heat insulation materials are filled between adjacent cell clusters; a heat conduction structural adhesive is filled between the battery cell array and the heat management plate, and a structural adhesive is filled between adjacent battery cells of the battery cell array; the cell unit cluster also comprises protection pieces arranged at two ends of the cell array; the two ends of the cell stacking unit along the arrangement direction of the cell clusters are provided with expansion constraint structural members; the outer wall of the battery cell stacking unit is provided with a binding band along the circumferential direction;
a bus bar assembly connected with the battery cell stacking unit is further arranged in the accommodating space, and the bus bar assembly is arranged at the top of the battery cell stacking unit; an insulating piece positioned at the top of the busbar assembly is also arranged in the accommodating space;
an electric interaction unit connected with the busbar assembly is also arranged in the accommodating space; the box cover is provided with a high-low voltage plug-in unit avoiding hole, and the electric interaction unit is electrically connected with an external electric appliance through the high-low voltage plug-in unit avoiding hole; the busbar assembly comprises a busbar which is connected with a pole on a battery cell in the battery cell stacking unit; the busbar assembly further includes a first low voltage plug and a flexible connector connected to the busbar; the panel of the electric interaction unit is provided with a sealing mounting hole, and the high-voltage plug-in and the second low-voltage plug-in are respectively and electrically connected with an external electric appliance through the sealing mounting hole;
the box cover comprises a main body box cover and an electric interaction unit box cover connected with one end of the main body box cover, the battery core stacking unit and the busbar assembly are arranged between the main body box cover and the box body, and the electric interaction unit is arranged between the electric interaction unit box cover and the box body; the main body box cover comprises a main body box cover body, the electric interaction unit box cover comprises an electric interaction unit box cover body, the main body box cover body and the electric interaction unit box cover body are located on the same horizontal plane, the outer edge of the main body box cover body obliquely downwards extends to form a main body box cover side plate, the outer edge of the electric interaction unit box cover body obliquely downwards extends to form an electric interaction unit box cover side plate, eight explosion-proof valve mounting openings are formed in the main body box cover side plate, explosion-proof valves are mounted on the explosion-proof valve mounting openings, and high-low voltage plug-in unit avoiding holes are formed in the electric interaction unit box cover side plate; the outer edges of the main body box cover side plate and the electric interaction unit box cover side plate extend outwards along the horizontal direction to form box cover sealing surfaces respectively, the box cover sealing surfaces are provided with sealing surface fixing holes, and the box body is provided with sealing surface fixing holes corresponding to the box cover sealing surface fixing holes; the case cover comprises a phase change material molding;
the box body comprises a bottom plate and an insulating layer arranged on the surface of one side of the bottom plate facing the box cover; the side of the bottom plate is provided with a thermal management external interface, and the surface of one side of the bottom plate facing the box cover is provided with a thermal management internal interface.
The embodiment also provides an electric automobile, which comprises the battery pack.
The applicant declares that the above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and it should be apparent to those skilled in the art that any changes or substitutions that are easily conceivable within the technical scope of the present invention disclosed by the present invention fall within the scope of the present invention and the disclosure.
Claims (14)
1. The battery pack is characterized by comprising a box body and a box cover matched with the box body, wherein an accommodating space is formed between the box body and the box cover;
a battery cell stacking unit is arranged in the accommodating space and comprises at least two battery cell clusters which are sequentially arranged along the thickness direction; the battery cell unit cluster comprises two rows of battery cell arrays, wherein each battery cell array comprises at least two battery cells which are sequentially arranged along the length direction;
two rows of the electric cores in the electric core array are arranged in a staggered manner;
in the two rows of the battery cells in the battery cell array, the overlapping area of the two battery cells is not more than one half of the side area of the battery cells;
a busbar assembly connected with the cell stacking unit is further arranged in the accommodating space, and the busbar assembly is arranged at the top of the cell stacking unit;
the battery cell unit cluster further comprises a thermal management plate arranged between the two rows of battery cell arrays, and a liquid flow channel is arranged in the thermal management plate; a thermal management internal interface is arranged on the box body and is communicated with the liquid flow channel;
the battery cell unit cluster further comprises protection pieces arranged at two ends of the battery cell array;
structural adhesive is filled between the battery cell clusters and the box body, and elastic heat insulation materials are filled between adjacent battery cell clusters; and heat conduction structural adhesive is filled between the battery cell array and the heat management plate, and structural adhesive is filled between adjacent battery cells of the battery cell array.
2. The battery pack according to claim 1, wherein the cell stack units are provided with expansion restraint structures at both ends in the arrangement direction of the cell clusters.
3. The battery pack according to claim 2, wherein a strap is provided on an outer wall of the cell stack unit in a circumferential direction.
4. The battery pack of claim 3, wherein an insulator is further disposed in the receiving space at the top of the busbar assembly.
5. The battery pack according to claim 4, wherein an electrical interaction unit connected to the busbar assembly is further provided in the accommodation space; the box cover is provided with a high-low voltage plug-in unit avoiding hole, and the electric interaction unit is connected with an electric component outside the battery pack through the high-low voltage plug-in unit avoiding hole.
6. The battery pack of claim 5, wherein the buss bar assembly comprises buss bars connected to posts on cells in the cell stack unit;
the busbar assembly also includes a flexible collection harness connected to the busbar and a first low voltage plug-in.
7. The battery pack of claim 5 or 6, wherein the electrical interactive unit integrates a high voltage plug-in with a second low voltage plug-in;
the panel of the electric interaction unit is provided with a sealing mounting hole, the case cover is provided with a case cover sealing hole, and the bolt passes through the sealing mounting hole and the case cover sealing hole to realize the sealing between the case cover and the panel of the electric interaction unit.
8. The battery pack of claim 7, wherein the case cover comprises a main body case cover and an electric interactive unit case cover connected to one end of the main body case cover;
the battery cell stacking unit and the busbar assembly are arranged between the main body box cover and the box body, and the electric interaction unit is arranged between the electric interaction unit box cover and the box body.
9. The battery pack of claim 8, wherein the main case cover comprises a main case cover body and the electrical interactive unit case cover comprises an electrical interactive unit case cover body;
the main body cover body and the electric interaction unit cover body are positioned on the same horizontal plane, the outer edge of the main body cover body extends downwards in an inclined mode to form a main body cover side plate, and the outer edge of the electric interaction unit cover body extends downwards in an inclined mode to form an electric interaction unit cover side plate;
the anti-explosion device comprises a main body box cover side plate, and is characterized in that at least one anti-explosion valve mounting opening is formed in the main body box cover side plate, an anti-explosion valve is arranged on the anti-explosion valve mounting opening, and a high-low voltage plug-in unit avoiding hole is formed in the electric interaction unit box cover side plate.
10. The battery pack of claim 9, wherein an end of the main body cover side plate away from the main body cover body is positioned on the same horizontal plane as an end of the electrical interaction unit cover side plate away from the electrical interaction unit cover body, and outer edges of the main body cover side plate and the electrical interaction unit cover side plate extend outwards in a horizontal direction to form cover sealing surfaces, respectively;
the box cover is characterized in that at least one sealing surface fixing hole is formed in the sealing surface of the box cover, and a sealing surface fixing hole corresponding to the sealing surface fixing hole is formed in the box body.
11. The battery pack of claim 10, wherein the cover comprises a sheet metal part or a composite molding.
12. The battery pack according to claim 11, wherein the case includes a bottom plate and an insulating layer provided on a side surface of the bottom plate facing the case cover.
13. The battery pack of claim 12, wherein a thermal management external port is provided on a side of the bottom plate, a thermal management internal port is provided on a side surface of the bottom plate facing the case cover, and a flow passage is provided in the bottom plate, the flow passage communicating the thermal management external port with the thermal management internal port.
14. An electric vehicle, characterized in that it comprises a battery pack according to any one of claims 1 to 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210857757.7A CN115084762B (en) | 2022-07-20 | 2022-07-20 | Battery pack and electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210857757.7A CN115084762B (en) | 2022-07-20 | 2022-07-20 | Battery pack and electric automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115084762A CN115084762A (en) | 2022-09-20 |
| CN115084762B true CN115084762B (en) | 2024-03-22 |
Family
ID=83260305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210857757.7A Active CN115084762B (en) | 2022-07-20 | 2022-07-20 | Battery pack and electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115084762B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208189678U (en) * | 2018-05-03 | 2018-12-04 | 常州普莱德新能源电池科技有限公司 | A kind of electric automobile power battery mould group and electric car |
| CN111952508A (en) * | 2020-09-08 | 2020-11-17 | 柳州市智甲金属科技有限公司 | Battery pack assembly based on integrated battery pack box body |
| CN112271368A (en) * | 2020-10-12 | 2021-01-26 | 东风时代(武汉)电池系统有限公司 | High energy density power battery package integrated configuration and new energy automobile |
| CN213212229U (en) * | 2020-08-31 | 2021-05-14 | 比亚迪股份有限公司 | Thermal-insulated electric core, electric core module, battery package and vehicle |
| CN213401414U (en) * | 2020-10-09 | 2021-06-08 | 江苏塔菲尔新能源科技股份有限公司 | Battery pack arrangement structure and electric automobile |
| CN213782118U (en) * | 2020-10-12 | 2021-07-23 | 东风时代(武汉)电池系统有限公司 | High energy density power battery package and new energy automobile |
| CN214411453U (en) * | 2021-01-21 | 2021-10-15 | 江苏塔菲尔动力系统有限公司 | Battery module and battery package of solar heat protection diffusion |
| CN113904054A (en) * | 2021-09-27 | 2022-01-07 | 蜂巢能源科技有限公司 | Battery pack and power device |
| CN216085018U (en) * | 2021-05-11 | 2022-03-18 | 恒大新能源技术(深圳)有限公司 | Battery pack and electric automobile |
| CN114400414A (en) * | 2022-01-21 | 2022-04-26 | 蜂巢能源科技股份有限公司 | Battery cell module and battery pack |
| CN114597574A (en) * | 2022-03-25 | 2022-06-07 | 广州小鹏汽车科技有限公司 | Battery cell module and power battery assembly |
| CN216850227U (en) * | 2022-01-21 | 2022-06-28 | 蜂巢能源科技股份有限公司 | Battery module and battery pack |
-
2022
- 2022-07-20 CN CN202210857757.7A patent/CN115084762B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208189678U (en) * | 2018-05-03 | 2018-12-04 | 常州普莱德新能源电池科技有限公司 | A kind of electric automobile power battery mould group and electric car |
| CN213212229U (en) * | 2020-08-31 | 2021-05-14 | 比亚迪股份有限公司 | Thermal-insulated electric core, electric core module, battery package and vehicle |
| CN111952508A (en) * | 2020-09-08 | 2020-11-17 | 柳州市智甲金属科技有限公司 | Battery pack assembly based on integrated battery pack box body |
| CN213401414U (en) * | 2020-10-09 | 2021-06-08 | 江苏塔菲尔新能源科技股份有限公司 | Battery pack arrangement structure and electric automobile |
| CN112271368A (en) * | 2020-10-12 | 2021-01-26 | 东风时代(武汉)电池系统有限公司 | High energy density power battery package integrated configuration and new energy automobile |
| CN213782118U (en) * | 2020-10-12 | 2021-07-23 | 东风时代(武汉)电池系统有限公司 | High energy density power battery package and new energy automobile |
| CN214411453U (en) * | 2021-01-21 | 2021-10-15 | 江苏塔菲尔动力系统有限公司 | Battery module and battery package of solar heat protection diffusion |
| CN216085018U (en) * | 2021-05-11 | 2022-03-18 | 恒大新能源技术(深圳)有限公司 | Battery pack and electric automobile |
| CN113904054A (en) * | 2021-09-27 | 2022-01-07 | 蜂巢能源科技有限公司 | Battery pack and power device |
| CN114400414A (en) * | 2022-01-21 | 2022-04-26 | 蜂巢能源科技股份有限公司 | Battery cell module and battery pack |
| CN216850227U (en) * | 2022-01-21 | 2022-06-28 | 蜂巢能源科技股份有限公司 | Battery module and battery pack |
| CN114597574A (en) * | 2022-03-25 | 2022-06-07 | 广州小鹏汽车科技有限公司 | Battery cell module and power battery assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115084762A (en) | 2022-09-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101403930B1 (en) | Battery Pack of Compact Structure | |
| CN204857898U (en) | Battery module , group battery and including device of this group battery | |
| EP2838133B1 (en) | Battery module having stability-improved structure and high cooling efficiency | |
| KR101218751B1 (en) | Middle or Large-sized Battery Pack of Improved Cooling Efficiency | |
| KR20140060633A (en) | Battery module having bus bar assembly and battery pack comprising the same | |
| JP2014534563A (en) | Battery module assembly with improved reliability and medium-to-large battery pack including the same | |
| CN104285315A (en) | Battery module including high-efficiency cooling structure | |
| KR20120016590A (en) | Battery module with compact structure and excellent heat radiation characteristics and middle or large-sized battery pack employed with the same | |
| US20230095565A1 (en) | Large pouch module and electric vehicle including the same | |
| CN213692186U (en) | Crossbeam formula battery module, power battery and vehicle | |
| CN113451695B (en) | Battery module and electric vehicle | |
| KR20210041284A (en) | Battery module and battery pack including the same | |
| CN115084762B (en) | Battery pack and electric automobile | |
| CN115312937B (en) | Battery pack and electric device comprising same | |
| US20230299411A1 (en) | Battery module and battery pack including the same | |
| CN114142139B (en) | Composite bipolar battery module and battery pack | |
| CN216213802U (en) | Single battery, battery module and battery pack | |
| CN115425353A (en) | Battery, battery module and have its vehicle | |
| CN115275426A (en) | Battery pack and electric equipment | |
| CN113782897B (en) | Battery pack and vehicle with same | |
| CN114400359A (en) | Electric core stack | |
| CN218632352U (en) | Electricity core mechanism, electricity core subassembly and electric vehicle | |
| CN221486655U (en) | Battery pack and vehicle | |
| CN220272669U (en) | Integrated battery energy storage system and automobile | |
| CN219575859U (en) | Blade battery and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240730 Address after: 313100 Green Intelligent Manufacturing Industrial Park, South Taihu industrial cluster, Changxing County Development Zone, Huzhou City, Zhejiang Province Patentee after: Jiewei Power (Changxing) Co.,Ltd. Country or region after: China Address before: No.11, Kaiyuan Road, Xiqing automobile industrial zone, Xiqing District, Tianjin 300380 Patentee before: TIANJIN EV ENERGIES Co.,Ltd. Country or region before: China |