CN117374505A - Composite end plate for fastening battery module and battery module - Google Patents
Composite end plate for fastening battery module and battery module Download PDFInfo
- Publication number
- CN117374505A CN117374505A CN202311675708.2A CN202311675708A CN117374505A CN 117374505 A CN117374505 A CN 117374505A CN 202311675708 A CN202311675708 A CN 202311675708A CN 117374505 A CN117374505 A CN 117374505A
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- Prior art keywords
- insulating sheet
- battery module
- end plate
- fastening
- support frame
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- 239000002131 composite material Substances 0.000 title claims abstract description 37
- 239000000463 material Substances 0.000 abstract description 12
- 239000000178 monomer Substances 0.000 abstract description 6
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 238000013461 design Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000003014 reinforcing effect Effects 0.000 description 5
- 239000013585 weight reducing agent Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction 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
- H01M50/249—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/64—Constructional details of batteries specially adapted for electric vehicles
-
- 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
-
- 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
- H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
- H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
- H01M50/231—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks having a layered structure
-
- 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
- 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
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
- H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
- H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
- H01M50/593—Spacers; Insulating plates
-
- 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
Landscapes
- General Chemical & Material Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Aviation & Aerospace Engineering (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention provides a composite end plate for fastening a battery module and the battery module, and relates to the technical field of batteries; adopt including support frame, first insulating piece, the second insulating piece, first insulating piece and second insulating piece along the mode of both sides lock in the support frame of support frame, the required material quantity of end plate adoption overall structure has significantly reduced, simultaneously, first insulating plate and second insulating plate all are equipped with a plurality of bosss towards the tip of electric core, and leave the clearance between a plurality of bosss and the support frame, the continuous promotion along with battery module's capacity that exists among the prior art has been alleviated, a plurality of battery monomers can take place self-expansion's phenomenon under some extreme conditions, and then can apply the expansion force to the end plate, the end plate can take place to warp, situation such as displacement, lead to battery module structural strength lower technical problem, power battery's running quality has been promoted.
Description
Technical Field
The invention relates to the technical field of battery technology, in particular to a composite end plate for fastening a battery module and the battery module.
Background
The power battery is used as one of three major components (battery, motor and electric control) of the electric automobile, is a power source of the whole vehicle system, the battery core is a power battery core technology, when the power batteries are used in groups, a plurality of power batteries are required to be connected in series or in parallel by using a bus bar, and the bus bar is usually connected with the positive electrode and the negative electrode of the power battery in a welded mode so as to ensure that a circuit is communicated, therefore, each power battery comprises a plurality of battery modules, and each battery comprises a plurality of single batteries arranged side by side and an end plate used for fixing the plurality of single batteries so as to ensure the integral operation quality of the power battery.
In the prior art, an end plate for fixing a plurality of batteries is generally of an integral structure, so that materials are wasted, the manufacturing cost is high, and along with continuous improvement of the capacity of a battery module, a plurality of battery monomers can expand under certain extreme conditions, and then expansion force can be applied to the end plate, and under the action of a long time, the end plate can deform, displace and the like, so that the structural strength of the battery module is low, the running quality of a power battery is influenced, and meanwhile, certain potential safety hazards exist.
Disclosure of Invention
The invention aims to provide a composite end plate for fastening a battery module and the battery module, which are used for solving the technical problems that in the prior art, the end plate adopting an integral structure is high in manufacturing cost, and simultaneously, as the capacity of the battery module is continuously improved, a plurality of battery monomers can expand themselves under extreme conditions, and further, expansion force can be applied to the end plate, and under the action of long time, the end plate can deform, displace and the like, so that the structural strength of the battery module is low, and the running quality of a power battery is influenced.
In a first aspect, the invention provides a composite end plate for fastening a battery module, which comprises a support frame, a first insulating sheet and a second insulating sheet, wherein the first insulating sheet and the second insulating sheet are buckled on the support frame along two sides of the support frame.
With reference to the first possible implementation manner of the first aspect, the present invention provides a first possible implementation manner of the first aspect, wherein a plurality of bosses are disposed at ends of the first insulating plate and the second insulating plate, which are towards the support frame, and gaps are left between the plurality of bosses and the support frame.
With reference to the first possible implementation manner of the first aspect, the present invention provides a second possible implementation manner of the first aspect, where the plurality of bosses are respectively arranged into a plurality of first contact sets and a plurality of second contact sets, where the plurality of first contact sets are respectively disposed opposite to the plurality of cross beams, and the plurality of second contact sets are respectively disposed opposite to the plurality of diagonal beams.
With reference to the second possible implementation manner of the first aspect, the present invention provides a third possible implementation manner of the first aspect, wherein the supporting frame includes two opposite upright posts and a connecting frame body, and the connecting frame body is connected between the two upright posts.
With reference to the second possible implementation manner of the first aspect, the present invention provides a fourth possible implementation manner of the first aspect, wherein a ratio between a thickness of the connection frame body and a thickness of the upright post is not greater than 1/3.
With reference to the second possible implementation manner of the first aspect, the present invention provides a fifth possible implementation manner of the first aspect, wherein the supporting frame includes two opposite upright posts and a connecting frame body, and the connecting frame body is connected between the two upright posts; the connecting frame body comprises a connecting part, a plurality of oppositely arranged cross beams and 4 inclined beams, 2 cross beams are connected between two upright posts, and a buffer area is enclosed between the cross beams and the two upright posts;
the connecting part is arranged in the buffer area, and a plurality of inclined beams are respectively connected between the connecting part and the plurality of cross beams; and the buffer area is divided into a plurality of hollowed-out parts by the oblique beams.
And a buffer bridge is arranged in the direction of the inclined beam towards the battery body.
With reference to the third possible implementation manner of the first aspect, the present invention provides a sixth possible implementation manner of the first aspect, wherein the upright is provided with a clamping groove, the first insulating sheet and the second insulating sheet are both provided with a clamping piece matched with the clamping groove, and the first insulating sheet and the second insulating sheet are clamped with the clamping groove through the clamping piece; the upright post is provided with a weight-reducing groove and an assembly hole, and the weight-reducing groove and the assembly hole are oppositely arranged;
the assembly holes and the weight-reducing grooves penetrate through the upright posts and are used for fastening the upright posts to the connecting frame body;
the first insulating sheet and the second insulating sheet are respectively provided with a first through hole, the connecting part is provided with a second through hole, the connecting frame body is provided with a second through hole, and the second through hole and the first through hole are arranged along the same horizontal direction;
the second through hole is positioned in the middle of the connecting frame body.
With reference to the fifth possible implementation manner of the first aspect, the present invention provides a seventh possible implementation manner of the first aspect, which further includes a binding belt, wherein the end surface of the first insulating sheet facing away from the support frame and the end surface of the second insulating sheet facing away from the support frame are both provided with a plurality of limiting grooves, and the limiting grooves are adapted to the binding belt.
With reference to the sixth possible implementation manner of the first aspect, the present invention provides an eighth possible implementation manner of the first aspect, wherein edges of the first insulating sheet and edges of the second insulating sheet are provided with chamfers, and the first insulating sheet and the second insulating sheet are inserted into the upright post through the chamfers.
In a second aspect, the present invention further provides a battery module, including the above composite end plate for fastening a battery module and a plurality of battery bodies arranged side by side, wherein a plurality of the battery bodies are arranged between a plurality of the composite end plates for fastening a battery module;
the composite end plate for fastening the battery module is used for binding a plurality of battery bodies through the binding belt.
The embodiment of the invention has the following beneficial effects: the composite end plate simultaneously realizes the technical effects of great weight reduction and insulation of the end plate; the weight reduction technical effect is realized by the design of the left and right insulating sheets, the thickness reduction design and the hollowed-out design of the connecting frame body of the core, the weight of the composite end plate is greatly reduced, the insulation technical effect is realized by the design of the left and right insulating sheets, the insulation capacity of the end plate can be greatly enhanced, the good insulation effect is achieved no matter the electric contact between the internal battery cell and the external battery cell is realized, and compared with the additional technical means of the end plate in the prior art for insulation, the composite end plate in the invention is in place by one step without other additional insulation means, and the electric insulation between the battery module end battery cell and the composite end plate can be realized; to the design of connecting the support body, it includes connecting portion, 2 crossbeams and 4 sloping that set up relatively, first insulation board and second insulation board all are equipped with a plurality of bosss towards the tip of support frame, and leave the clearance between a plurality of bosss and the support frame, when the battery main part takes place the expansion state, through the clearance that boss and support frame left, the boss removes to the support frame, the produced expansion force of monomer battery has been reduced by a wide margin, simultaneously, reduce the holistic deformation of end plate, the not only manufacturing cost that adopts the end plate of overall structure to exist among the prior art is higher has been alleviated, simultaneously, along with the continuous promotion of capacity of battery module, a plurality of battery monomers can take place self inflation under some extreme conditions, and then can apply the expansion force to the end plate, long-time effect down, the end plate can take place to warp, the situation such as displacement, lead to the lower technical problem of battery module structural strength, the running quality of power battery has been promoted.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of the overall structure of a battery module according to an embodiment of the present invention;
fig. 2 is an exploded view of a composite end plate for fastening a battery module according to an embodiment of the present invention;
fig. 3 is a front view of a composite end plate for fastening a battery module according to an embodiment of the present invention;
fig. 4 is a schematic view illustrating an internal structure of a composite end plate for fastening a battery module according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a first insulating sheet or a second insulating sheet for fastening a composite end plate of a battery module according to an embodiment of the present invention;
fig. 6 is an enlarged schematic view of a portion a of fig. 5 in a composite end plate for fastening a battery module according to an embodiment of the present invention;
fig. 7 is a schematic structural view of a support frame in a composite end plate for fastening a battery module according to an embodiment of the present invention.
Icon: 10-a battery body; 20-a binding belt; 100-supporting frames; 110-stand columns; 111-a weight reduction groove; 112-fitting holes; 113-a clamping groove; 120-connecting the frame body; 121-a connection; 122-a beam; 123-sloping; 124-buffer bridge; 210-a first insulating sheet; 220-a second insulating sheet; 230-a first through hole; 240-boss; 241-first contact set; 242-a second set of contacts; 250-chamfering; 260-limit groove and 270-snap fastener.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of 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 should not be construed as limiting the present invention. 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 invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; 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 will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 to 7, the end plate for a battery template provided by the invention comprises a support frame 100, a first insulating sheet 210 and a second insulating sheet 220, wherein the first insulating sheet 210 and the second insulating sheet 220 are buckled on the support frame 100 along two sides of the support frame 100;
the end portions of the first insulating sheet 210 and the second insulating sheet 220 facing the support frame 100 are provided with a plurality of bosses 240, and gaps are reserved between the bosses 240 and the support frame 100.
The mode that the support frame 100, the first insulating sheet 210 and the second insulating sheet 220 are buckled on the support frame 100 along two sides of the support frame 100 is adopted, material consumption required by the whole structure of the end plate is greatly reduced, simultaneously, a plurality of bosses 240 are arranged at the end parts of the first insulating sheet 210 and the second insulating sheet 220, which face the support frame 100, gaps are reserved between the bosses 240 and the support frame 100, when the battery body is in an expansion state, the bosses 240 move towards the support frame 100 through the gaps reserved between the bosses 240 and the support frame 100, expansion force generated by single batteries is greatly reduced, meanwhile, the whole deformation of the end plate is reduced, the problem that the end plate adopting the whole structure in the prior art is high in manufacturing cost is solved, meanwhile, as the capacity of the battery module is continuously improved, a plurality of battery monomers can be expanded under extreme conditions, and further expansion force can be applied to the end plate, deformation, displacement and the like can be generated under the long-time effect, the technical problem that the structure strength of the battery module is low is caused, and the running quality of the power battery is improved.
It should be noted that, the material of the support 100 may be metal or other high-strength materials, in this embodiment, the material of the support 100 is metal aluminum, the material is light and the strength can meet the use requirement, and the designer can also be provided with a hollow structure according to the actual situation, so as to further reduce the manufacturing cost; the first insulating sheet 210 and the second insulating sheet 220 are made of plastic, so that cost is saved, and meanwhile, the plastic can also solve the insulation problem, and in this case, the first insulating sheet 210 and the second insulating sheet 220 are kept consistent.
Further, the supporting frame 100 includes two opposite upright posts 110 and a connecting frame 120, and the connecting frame 120 is connected between the two upright posts 110;
the thickness of the connecting frame 120 is obviously smaller than that of the upright posts 110, which is a core invention point of the invention, and is steel material relative to the whole end plate, the invention only maintains the original thickness and equivalent strength of the two upright posts 110, the thickness of the connecting frame 120 is greatly reduced, so that the thickness of the connecting frame 120 is close to 1/4 of the thickness of the two upright posts 110, the thickness of the connecting frame 120/the thickness of the upright posts 110 is less than or equal to 1/3, and the thickness of the connecting frame 120/the thickness of the upright posts 110 is preferably less than or equal to 1/4.
In order to further reduce the weight, the connection frame 120 is further provided with a specific hollow structure, which is specifically set as follows.
The connecting frame 120 includes a connecting portion 121, a plurality of beams 122 and a plurality of diagonal beams 123, wherein the beams 122 are connected between the two columns 110, and a buffer area is enclosed between the beams 122 and the two columns 110;
the connecting part 121 is arranged in the buffer zone, and 4 inclined beams 123 are respectively connected between the connecting part 121 and the 2 cross beams 122; the 4 diagonal beams 123 are distributed in an X-shaped manner in the buffer area, so that the buffer area is divided into a plurality of hollowed-out parts.
The connecting portion 121 is the ring shape design, and the battery module after this shape can be convenient for assemble and accomplish carries out hoist and mount, and the round hole in the connecting portion 121 not only can be used for subtracting heavy, more can act on subsequent lifting hole, and whole simple structure, practicality. The 2 beams 122 are respectively connected to the top and the bottom between the two upright posts 110, so that a buffer area is enclosed between the beams 122 and the two upright posts 110; in order to reduce material costs while ensuring that the first insulating plate and the second insulating plate can be provided with a buffering function, 4 diagonal beams 123 are respectively connected between the connecting portion 121 and the 2 cross beams 122; and a plurality of sloping 123 will the buffer is cut apart into the form of a plurality of fretwork portions, and crossbeam 122 and sloping 123 all adopt the strengthening rib structure, can effectually alleviate the produced expansion force of battery body 10, and the setting of a plurality of fretwork portions can reduce the material that uses by a wide margin under equal working area.
According to practical needs, the number of the inclined beams 123 can be more, for example, 6 inclined beams can be selected, which is equivalent to adding two inclined beams symmetrically in a vertical or horizontal position; the device can be also arranged into 8 inclined beams, and can be arranged into a shape like a Chinese character 'mi'.
Further, the oblique beam 123 is provided with a buffer bridge 124 toward the battery body 10. In this embodiment, the buffer bridge 124 is a bent structure, and the buffer bridge 124 is disposed on two diagonal beams 123 diagonally opposite to each other and protrudes toward the battery body 10, so that the buffer bridge 124 can make the whole composite end plate have a certain buffer capacity, and further reduce the impact generated when the battery body 10 expands. Further, the plurality of bosses 240 are respectively arranged into a plurality of first contact groups 241 and a plurality of second contact groups 242, the plurality of first contact groups 241 are respectively disposed opposite to the plurality of cross beams 122, and the plurality of second contact groups 242 are respectively disposed opposite to the plurality of diagonal beams 123.
The first contact set 241 is arranged opposite to the cross beam 122, the second contact set 242 is arranged opposite to the oblique beam 123, namely, the whole boss 240 is distributed to enable the cross beam 122 on the connecting frame 120 to be matched with the installation phase of the oblique beam 123, the boss 240 can be guaranteed to be fully contacted with the connecting frame 120, when the battery module expands, the first insulating sheet 210 and the second insulating sheet 220 are extruded by the expansion force of the battery due to the binding tape 20, the boss 240 can strengthen the resistance between the first insulating sheet, the second insulating sheet 220 and the supporting frame 100, so that the whole composite end plate is more resistant to extrusion and deformation, and the whole buffering effect of the equipment is guaranteed.
Further, the upright post 110 is provided with a clamping groove 113, the first insulating sheet 210 and the second insulating sheet 220 are respectively provided with a clamping piece 270 matched with the clamping groove 113, and the first insulating sheet 210 and the second insulating sheet 220 are clamped with the clamping groove 113 through the clamping pieces 270.
The first insulating sheet 210 and the second insulating sheet 220 are respectively clamped with the corresponding upright posts 110 through the clamping between the clamping pieces 270 and the clamping grooves 113, so that the insulating sheets can be prevented from falling off due to vibration or falling; in this embodiment, the fastening member 270 is in a hook structure, the fastening slot 113 is in a hole structure adapted to the fastening member 270, and the fastening member 270 and the fastening slot 113 are in micro interference fit to ensure the connection strength of the first insulating sheet 210 and the second insulating sheet 220 relative to the support frame 100; meanwhile, the buckling mode of the buckling piece 270 and the buckling groove 113 is convenient for assembly, and labor intensity of workers is reduced.
Further, the cable tie 20 is further provided, and both the end surface of the first insulating sheet 210 facing away from the battery cell and the end surface of the second insulating sheet 220 facing away from the battery cell are provided with a plurality of limiting grooves 260, wherein the limiting grooves 260 are adapted to the cable tie 20.
The limiting grooves 260 of the first insulating sheet 210 and the second insulating sheet 220 are recessed inwards, so that the requirement of binding space of the binding belt 20 is met, the overall size of the module is reduced, and the cost required for production is further reduced.
Further, the first insulating sheet 210 and the second insulating sheet 220 are each provided with a first through hole 230, and the connection frame 120 is provided with a second through hole, which is disposed along the same horizontal direction as the first through hole 230.
Further, the second through hole is located at the middle of the connection frame 120.
The second through hole is located in the connecting frame 120, and the first through holes 230 of the first insulating sheet 210 and the second insulating sheet 220 are arranged along the same horizontal direction with the second through holes, so that the whole battery module is more stable in stress when being transported, and the safety of the transportation process is guaranteed.
Further, the edges of the first insulating sheet 210 and the edges of the second insulating sheet 220 are provided with chamfers 250, and the first insulating sheet 210 and the second insulating sheet 220 are inserted into the upright posts 110 through the chamfers 250.
The arrangement of the chamfer 250 in the edges of the first insulating sheet 210 and the second insulating sheet 220 can play a role in assembly guiding, so that the first insulating sheet 210 and the second insulating sheet 220 can be conveniently inserted into the upright post 110 through the chamfer 250.
Further, the upright post 110 is provided with a weight-reducing groove 111 and an assembly hole 112, and the weight-reducing groove 111 and the assembly hole 112 are oppositely arranged; the assembly holes 112 and the weight-reducing grooves 111 penetrate through the upright posts 110, and are used for fastening the upright posts 110 to the connection frame 120.
The weight reduction groove 111 can reduce the materials required by the upright post 110, and the assembly holes 112 can penetrate through the upright post 110 through bolts, so that the whole effect of the fastening equipment is achieved.
The weight-reducing grooves 111 can further reduce the materials required by the upright posts 110, and meanwhile, the weight-reducing grooves 111 and the assembly holes 112 are arranged oppositely;
further, the connecting frame 120 is provided with a reinforcing rib, the plurality of bosses 240 are arranged towards the direction of the reinforcing rib, and gaps are reserved between the plurality of bosses 240 and the reinforcing rib.
The boss 240 is matched with the reinforcing rib on the connecting frame body 120 in position, but a trace gap is reserved, when the battery cell expands to generate expansion force, the first insulating sheet 210 and the second insulating sheet 220 are subjected to expansion force, so that the boss 240 is propped against the reinforcing rib plane in the support frame 100, and the buffer effect of the support frame 100 and the effect of the binding belt 20 can well offset the expansion force, ensure the stability of the module and reduce potential safety hazards.
Further, the first through hole 230 and the second through hole are both circular structures.
The arrangement of the round structure not only can reduce the stress concentration of the supporting frame 100, the first insulating sheet 210 and the second insulating sheet 220, but also is convenient for the insertion of the dispatching rope body and reduces the labor intensity of field workers.
In a second aspect, the present embodiment also provides a battery module including the above composite end plate for fastening the battery module and a plurality of battery bodies 10 arranged side by side, the plurality of battery bodies 10 being arranged between the plurality of composite end plates for fastening the battery module;
the composite end plate for fastening the battery module binds the plurality of battery bodies 10 by the tie 20.
The principle of which is described above and will not be described in detail here.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (10)
1. The composite end plate for fastening the battery module is characterized by comprising a support frame (100), a first insulating sheet (210) and a second insulating sheet (220), wherein the first insulating sheet (210) and the second insulating sheet (220) are buckled on the support frame (100) along two sides of the support frame (100).
2. The composite end plate for fastening a battery module according to claim 1, wherein the ends of the first insulating sheet (210) and the second insulating sheet (220) facing the support frame (100) are each provided with a plurality of bosses (240), and a plurality of gaps are left between the bosses (240) and the support frame (100).
3. The composite end plate for fastening a battery module according to claim 2, wherein the support frame (100) is provided with a plurality of oppositely disposed cross members (122) and a plurality of diagonal members (123), the plurality of bosses (240) are arranged in a plurality of first contact groups (241) and a plurality of second contact groups (242), respectively, the plurality of first contact groups (241) are oppositely disposed with respect to the plurality of cross members (122), and the plurality of second contact groups (242) are oppositely disposed with respect to the plurality of diagonal members (123), respectively.
4. A composite end plate for fastening a battery module according to claim 3, wherein the support frame (100) comprises two opposite upright posts (110) and a connection frame body (120), the connection frame body (120) being connected between the two upright posts (110).
5. The composite end plate for fastening a battery module according to claim 4, wherein a ratio between a thickness of the connection frame body (120) and a thickness of the column (110) is not more than 1/3.
6. The composite end plate for fastening a battery module according to claim 4, wherein the connection frame body (120) further comprises a connection part (121), a plurality of cross members (122) are connected between two of the upright posts (110), and a composite buffer area is enclosed between the plurality of cross members (122) and the two upright posts (110);
the connecting part (121) is arranged in the buffer zone, and a plurality of inclined beams (123) are respectively connected between the connecting part (121) and the plurality of cross beams (122); the buffer area is divided into a plurality of hollowed-out parts by the inclined beams (123);
the oblique beam (123) is provided with a buffer bridge (124) towards the battery body (10).
7. The composite end plate for fastening a battery module according to claim 6, wherein the upright (110) is provided with a clamping groove (113), the first insulating sheet (210) and the second insulating sheet (220) are both provided with a clamping piece (270) adapted to the clamping groove (113), and the first insulating sheet (210) and the second insulating sheet (220) are clamped with the clamping groove (113) through the clamping piece (270);
the upright post (110) is provided with a weight-reducing groove (111) and an assembly hole (112), and the weight-reducing groove (111) and the assembly hole (112) are oppositely arranged;
the assembly holes (112) and the weight-reducing grooves (111) penetrate through the upright post (110) and are used for fastening the upright post (110) to the connecting frame body (120);
the first insulating sheet (210) and the second insulating sheet (220) are respectively provided with a first through hole (230), the connecting part (121) is provided with a second through hole, the connecting frame body (120) is provided with a second through hole, and the second through hole and the first through hole (230) are arranged along the same horizontal direction;
the second through hole is positioned in the middle of the connecting frame body (120).
8. The composite end plate for fastening a battery module according to claim 7, further comprising a tie (20), wherein the end surface of the first insulating sheet (210) facing away from the support frame (100) and the end surface of the second insulating sheet (220) facing away from the support frame (100) are each provided with a plurality of limit grooves (260), and the limit grooves (260) are adapted to the tie (20).
9. The composite end plate for fastening a battery module according to claim 5, wherein the edges of the first insulating sheet (210) and the edges of the second insulating sheet (220) are each provided with a chamfer (250), and the first insulating sheet (210) and the second insulating sheet (220) are inserted into the upright (110) through the chamfers (250).
10. A battery module characterized by comprising a plurality of composite end plates for fastening a battery module according to any one of claims 1 to 9 and a plurality of battery bodies (10) arranged side by side, a plurality of the battery bodies (10) being arranged between a plurality of the composite end plates for fastening a battery module; the composite end plate for fastening the battery module is bound to a plurality of the battery bodies (10) by a binding band (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311675708.2A CN117374505B (en) | 2023-12-08 | 2023-12-08 | Composite end plate for fastening battery module and battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311675708.2A CN117374505B (en) | 2023-12-08 | 2023-12-08 | Composite end plate for fastening battery module and battery module |
Publications (2)
| Publication Number | Publication Date |
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| CN117374505A true CN117374505A (en) | 2024-01-09 |
| CN117374505B CN117374505B (en) | 2024-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311675708.2A Active CN117374505B (en) | 2023-12-08 | 2023-12-08 | Composite end plate for fastening battery module and battery module |
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| CN (1) | CN117374505B (en) |
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| CN210200882U (en) * | 2019-09-04 | 2020-03-27 | 江苏塔菲尔新能源科技股份有限公司 | Port-shaped frame and battery module thereof |
| CN214542436U (en) * | 2021-04-21 | 2021-10-29 | 苏州清陶新能源科技有限公司 | Battery module and battery pack |
| CN215644767U (en) * | 2021-05-11 | 2022-01-25 | 潍柴动力股份有限公司 | Battery module end plate and battery module |
| US20230216125A1 (en) * | 2021-12-30 | 2023-07-06 | Samsung Sdi Co., Ltd. | Battery module |
| CN219610632U (en) * | 2023-04-19 | 2023-08-29 | 惠州亿纬锂能股份有限公司 | Battery module and battery pack |
| WO2023193334A1 (en) * | 2022-04-06 | 2023-10-12 | 宁德时代新能源科技股份有限公司 | Battery and electrical device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209016140U (en) * | 2018-11-23 | 2019-06-21 | 宁德时代新能源科技股份有限公司 | A kind of battery modules end plate and its battery modules |
| CN210110861U (en) * | 2019-01-24 | 2020-02-21 | 比亚迪股份有限公司 | Battery end plate assembly and battery module |
| CN210200882U (en) * | 2019-09-04 | 2020-03-27 | 江苏塔菲尔新能源科技股份有限公司 | Port-shaped frame and battery module thereof |
| CN214542436U (en) * | 2021-04-21 | 2021-10-29 | 苏州清陶新能源科技有限公司 | Battery module and battery pack |
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| US20230216125A1 (en) * | 2021-12-30 | 2023-07-06 | Samsung Sdi Co., Ltd. | Battery module |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN117374505B (en) | 2024-05-24 |
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