CN110808401B - Battery module grouping clamp and using method - Google Patents
Battery module grouping clamp and using method Download PDFInfo
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- CN110808401B CN110808401B CN201911115356.9A CN201911115356A CN110808401B CN 110808401 B CN110808401 B CN 110808401B CN 201911115356 A CN201911115356 A CN 201911115356A CN 110808401 B CN110808401 B CN 110808401B
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000003825 pressing Methods 0.000 claims abstract description 96
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 238000001125 extrusion Methods 0.000 claims description 11
- 239000011265 semifinished product Substances 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a battery module grouping clamp and a using method thereof, the battery module grouping clamp comprises a clamp body, a first positioning piece and a second positioning piece, the clamp body comprises a bottom plate, two side pressing plates and two clamping mechanisms, a through hole is formed in the middle of the bottom plate, the two side pressing plates can be arranged on two opposite edges of the bottom plate, the two clamping mechanisms are respectively arranged at two ends of the side pressing plates, the first positioning piece comprises a first positioning plate and a plurality of first positioning pins, and the second positioning piece comprises a second positioning plate and a plurality of second positioning pins. The battery module grouping clamp comprises a first positioning piece and a second positioning piece with positioning pins, and can be used for the grouping process of large-scale battery modules with middle fixing plates.
Description
Technical Field
The invention relates to the technical field of battery manufacturing, in particular to a battery module grouping clamp and a using method thereof.
Background
For a pure electric vehicle, the energy density and the space utilization rate of a battery system play a vital role in the performance of the whole vehicle. The energy density and space utilization rate of the battery system are partially reflected on the battery modules, and the relatively high energy density and space utilization rate also provide high requirements for the module grouping mode and the tool clamp.
At present, a power battery module in the market is usually fixed at one end of the module, and is clamped at the other end in a pressing and clamping mode, and the power battery module is grouped after reaching a certain size, and the power battery module is suitable for modules with low energy density and small size. The large-scale module has longer length owing to have more electric core, is provided with the fixed plate at the middle part of electric core usually, provides extra support and tie point to improve electric core holistic structural strength in groups, be unlikely to warp because of self length is too big at the in-process of module transportation, installation. Therefore, the existing module clamp cannot meet the grouping work of a large module with a fixed plate arranged in the middle.
Disclosure of Invention
The invention aims to provide a battery module grouping clamp which can be used for grouping large-sized battery modules with a fixing plate arranged in the middle, wherein all parts of the modules are stressed uniformly, and the size deviation of the modules on two sides of the fixing plate is small.
Another object of the present invention is to provide a method for using a battery module grouping jig, which has high assembly accuracy and good grouping quality.
In order to achieve the purpose, the invention adopts the following technical scheme:
on one hand, the battery module grouping clamp comprises a clamp body, a first positioning piece and a second positioning piece, wherein the clamp body comprises a bottom plate, two side pressing plates and two clamping mechanisms, a through hole is formed in the middle of the bottom plate, the two side pressing plates are detachably arranged on two opposite edges of the bottom plate, the two clamping mechanisms are respectively arranged at two ends of the side pressing plates, the first positioning piece comprises a first positioning plate and a plurality of first positioning pins arranged on one side of the first positioning plate, the second positioning piece comprises a second positioning plate and a plurality of second positioning pins arranged on one side of the second positioning plate, two ends of the first positioning plate can be fixed on one side of the bottom plate, which is far away from the side pressing plates, so that the plurality of first positioning pins pass through the through hole, and two ends of the second positioning plate can be respectively fixed at the tops of the two side pressing plates, and a plurality of second positioning pins are extended into the gap between the two side pressing plates.
As a preferable scheme of the present invention, the battery module grouping jig further includes a first pressing plate and a second pressing plate, the first pressing plate includes a first plate body and a first protrusion, the second pressing plate includes a second plate body and a second protrusion, the first plate body can be connected to a side of the bottom plate away from the side pressing plates, so that the first protrusion passes through the through hole, the second plate body can be connected to tops of the side pressing plates, and the second protrusion extends between the two side pressing plates and is opposite to the first protrusion.
As a preferable aspect of the present invention, each of the first protrusion and the second protrusion includes a first portion and a second portion that are spaced apart from each other, a groove structure is formed between the first portion and the second portion, and the first positioning plate and the second positioning plate may be disposed in the groove structure.
As a preferable scheme of the invention, the two clamping mechanisms are respectively provided with an extrusion plate, the extrusion plates are perpendicular to the bottom plate, and the extrusion plates are connected with the driving mechanism and do reciprocating linear motion in a gap between the two side pressing plates.
In a preferred embodiment of the present invention, the pressing plate is provided with a pressure gauge.
As a preferable aspect of the present invention, the number of the first positioning pins and the number of the second positioning pins are at least three.
In another aspect, a method for using a battery module grouping jig is provided, which includes the following steps:
s1, providing parts of a battery module, wherein the parts comprise a plurality of battery cells, an upper cover plate, a lower cover plate, two side plates, two end plates and a middle fixing plate;
s2, mounting a first positioning piece on one side of a bottom plate, and mounting a side pressing plate on the other side of the bottom plate;
s3, assembling the middle fixing plate on a first locating pin of the first locating component, and placing a plurality of electric cores on two sides of the middle fixing plate to form a first electric core group and a second electric core group;
s4, fixedly connecting the end plate with the electric core positioned on the outermost side of the first electric core group or the second electric core group;
s5, installing another side pressure plate on the bottom plate, enabling a second positioning piece to be installed on the two side pressure plates, and inserting a second positioning pin into the middle fixing plate;
s6, enabling the extrusion plate to move towards the end plate and extrude the end plate until a set pressure is reached, and enabling the first electric core group and the second electric core group to reach a set volume;
s7, removing the first positioning piece, enabling the lower cover plate to be bonded with the first electric core group and the second electric core group, installing the first positioning piece back, and installing a first pressing plate to enable the lower cover plate to tightly press the first electric core group and the second electric core group;
s8, removing the second positioning piece, enabling the upper cover plate to be bonded with the first electric core group and the second electric core group, assembling the second positioning piece back, and installing a second pressing plate to enable the upper cover plate to tightly press the first electric core group and the second electric core group;
s9, detaching the first pressing plate and the first positioning piece, welding the lower cover plate with the middle fixing plate and the end plate, and installing the first positioning piece back;
s10, removing the second pressing plate and the second positioning piece to weld the upper cover plate with the middle fixing plate and the end plate to form a semi-finished module;
s11, the first positioning piece is disassembled, the module semi-finished product is separated from the clamp body, and the two side plates are installed on the module semi-finished product to obtain the battery module.
As a preferable scheme of the present invention, the middle fixing plate is provided with a plurality of fixing holes, and the first positioning pin and the second positioning pin are in interference fit with the fixing holes.
As a preferable scheme of the present invention, the lower cover plate and the upper cover plate are both provided with an opening through which the first positioning pin or the second positioning pin passes.
In a preferred embodiment of the present invention, the distance between the two side pressing plates is greater than the width of the upper cover plate, and the size of the through hole in the bottom plate is greater than the size of the lower cover plate.
The invention has the beneficial effects that:
the battery module grouping clamp comprises a first positioning piece and a second positioning piece with positioning pins, and can be used for the grouping process of large-sized battery modules with middle fixing plates.
Drawings
Fig. 1 is a schematic perspective view of a battery module grouping jig according to an embodiment of the present invention, in which a battery module is mounted;
fig. 2 is a perspective view of a battery module matched with the battery module grouping jig according to the embodiment of the present invention;
fig. 3 is an exploded view of fig. 2.
In FIGS. 1-3:
1. a clamp body; 11. a base plate; 12. a first side press plate; 13. a second side press plate; 14. a clamping mechanism; 141. a pressing plate; 142. a pressure gauge; 2. a first positioning member; 21. a first positioning plate; 22. a first positioning pin; 3. a second positioning member; 31. a second positioning plate; 32. a second positioning pin; 4. a first platen; 41. a first plate body; 42. a first bump; 5. a second platen; 51. a second plate body; 52. a second bump;
100. an electric core; 200. a middle fixing plate; 300. a lower cover plate; 400. an upper cover plate; 500. an end plate; 600. side plates.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the word "over" a first feature or feature in a second feature may include the word "over" or "over" the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under" a second feature may include a first feature that is directly under and obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
As shown in fig. 1, the battery module grouping jig of the embodiment includes a jig body 1, a first positioning member 2 and a second positioning member 3, the jig body 1 includes a bottom plate 11, a first side pressing plate 12, a second side pressing plate 13 and two clamping mechanisms 14, a through hole is formed in the middle of the bottom plate 11, the first side pressing plate 12 and the second side pressing plate 13 are detachably disposed on two opposite edges of the bottom plate 11, the two clamping mechanisms 14 are respectively disposed at two ends of the first side pressing plate 12 and the second side pressing plate 13, the first positioning member 2 includes a first positioning plate 21 and a plurality of first positioning pins 22 disposed at one side of the first positioning plate 21, the second positioning member 3 includes a second positioning plate 31 and a plurality of second positioning pins 32 disposed at one side of the second positioning plate 31, two ends of the first positioning plate 21 can be fixed at one side of the bottom plate 11 away from the first side pressing plate 12 and the second side pressing plate 13, so that the plurality of first positioning pins 22 pass through holes formed, the two ends of the second positioning element 3 can be respectively fixed on the tops of the first side pressing plate 12 and the second side pressing plate 13, so that the second positioning pins 32 can extend into the gap between the first side pressing plate 12 and the second side pressing plate 13.
Combine as shown in fig. 2 and fig. 3, the battery module anchor clamps in groups of this embodiment is including first setting element 2 and the second setting element 3 that has the locating pin, can be used to be provided with the process of uniting of the large-scale battery module of middle part fixed plate 200, first setting element 2 and second setting element 3 are from two upper and lower fixed middle part fixed plates 200 respectively, it is fixed effectual, and the installation and the dismantlement of first setting element 2 and second setting element 3 are all very convenient, the anchor clamps both ends all are provided with clamping mechanism 14, make the atress of module two parts electric core group balanced, size deviation is little, it is effectual to unitize.
Preferably, in some embodiments, the battery module grouping jig further includes a first pressing plate 4 and a second pressing plate 5, the first pressing plate 4 includes a first plate body 41 and a first protrusion 42, the second pressing plate 5 includes a second plate body 51 and a second protrusion 52, the first plate body 41 may be connected to a side of the base plate 11 facing away from the first side pressing plate 12 and the second side pressing plate 13 such that the first protrusion 42 passes through the through hole and presses the lower surface of the battery module, the second plate body 51 may be connected to the top of the first side pressing plate 12 and the second side pressing plate 13 such that the second protrusion 52 extends between the first side pressing plate 12 and the second side pressing plate 13 and is opposite to the first protrusion 42 for pressing the upper surface of the battery module. When the lower cover plate 300 and the upper cover plate 400 of the battery module are connected with the battery cells 100 in a bonding mode, the lower cover plate 300 can be tightly pressed on the battery cells 100 by the first pressing plate 4, and the upper cover plate 400 can be tightly pressed on the battery cells 100 by the second pressing plate 5, so that the adhesive is uniformly distributed, and the lower cover plate 300 and the upper cover plate 400 are guaranteed to be flat and firmly bonded.
Further, the first protrusion 42 and the second protrusion 52 each include a first portion and a second portion that are spaced apart from each other, a groove structure is formed between the first portion and the second portion, and the first positioning plate 21 and the second positioning plate 31 may be disposed in the groove structure. The first positioning plate 21 and the second positioning plate 31 enable the middle fixing plate 200 to be located at a fixed position, and have an important effect on maintaining the grouping shape of the modules and the stress balance, so that at least one of the middle fixing plate 200 and the middle fixing plate needs to be kept in a connection state before grouping is completed, and displacement of the middle fixing plate 200 is prevented. When the first pressing plate 4 and the second pressing plate 5 are installed, the module is still in an unfinished assembly state, and therefore, a structure capable of accommodating the first positioning plate 21 and the second positioning plate 31 needs to be arranged on the first pressing plate 4 and the second pressing plate 5, so that the first positioning piece 2 and the first pressing plate 4 can simultaneously function, and the second positioning piece 3 and the second pressing plate 5 can simultaneously function.
Preferably, the two clamping mechanisms 14 are each provided with a pressing plate 141, the pressing plates 141 are perpendicular to the base plate 11, and the pressing plates 141 are connected to the driving mechanism and perform reciprocating linear motion in the gap between the first side pressing plate 12 and the second side pressing plate 13, so as to simultaneously press the first electric core pack and the second electric core pack on both sides of the middle fixing plate 200.
Further, a pressure gauge 142 is provided on the pressing plate 141, so that the current pressure value can be read, and the pressure can be precisely adjusted until the set pressure value is reached.
Preferably, the number of the first positioning pins 22 and the second positioning pins 32 is at least three, so as to ensure stable fixation of the middle fixing plate 200.
The embodiment of the invention also provides a use method of the battery module grouping clamp, which comprises the following steps:
s1, providing parts of a battery module, wherein the parts comprise a plurality of battery cells 100, a middle fixing plate 200, a lower cover plate 300, an upper cover plate 400, two end plates 500 and two side plates 600;
s2, mounting the first positioning piece 2 on one side of the bottom plate 11, and mounting a first side pressing plate 12 on the other side of the bottom plate 11;
s3, assembling the middle fixing plate 200 on the first positioning pin 22 of the first positioning component 2, and placing a plurality of electric cores 100 on two sides of the middle fixing plate 200 to form a first electric core group and a second electric core group;
s4, fixedly connecting the end plate 500 with the electric core 100 positioned on the outermost side of the first electric core group or the second electric core group;
s5, mounting a second side pressing plate 13 on the bottom plate 11, so that the second positioning piece 3 is mounted on the first side pressing plate 12 and the second side pressing plate 13, and inserting the second positioning pin 32 into the middle fixing plate 200;
s6, enabling the extrusion plate 141 to move towards the end plate 500 and extruding the end plate 500 until a set pressure is reached, and enabling the first electric core group and the second electric core group to reach a set volume;
s7, removing the first positioning component 2, enabling the lower cover plate 300 to be bonded with the first electric core group and the second electric core group, installing the first positioning component 2 back, and installing the first pressing plate 4 to enable the lower cover plate 300 to tightly press the first electric core group and the second electric core group;
s8, removing the second positioning piece 3, enabling the upper cover plate 400 to be bonded with the first electric core group and the second electric core group, assembling the second positioning piece 3 back, and installing the second pressing plate 5 to enable the upper cover plate 400 to tightly press the first electric core group and the second electric core group;
s9, removing the first pressing plate 4 and the first positioning piece 2, welding the lower cover plate 300 with the middle fixing plate 200 and the end plate 500, and installing the first positioning piece 2 back;
s10, removing the second pressing plate 5 and the second positioning piece 3, and welding the upper cover plate 400 with the middle fixing plate 200 and the end plate 500 to form a module semi-finished product;
s11, the first positioning piece 2 is detached, the module semi-finished product is separated from the clamp body 1, and the two side plates 600 are mounted on the module semi-finished product to obtain the battery module.
Middle part fixed plate 200, bottom plate 11 and first side board 12 at first provide the reference surface of putting for a plurality of electric cores 100, first setting element 2 is used for fixed middle part fixed plate 200, put the completion back when a plurality of electric cores 100, through installation second side board 13 and second setting element 3, a plurality of electric cores 100 have accomplished the location in the direction that is on a parallel with middle part fixed plate 200, can accomplish the extrusion work of first electric core group and second electric core group through extrusion end plate 500 behind the installation end plate 500, make first electric core combination second electric core group reach target pressure and volume state, consequently, can carry out the installation work of lower cover plate 300 and upper cover plate 400 again. The dimensions of the lower cover plate 300 and the upper cover plate 400 are determined for the dimensions of the several battery cells 100 after the extrusion is completed, and thus cannot be installed before the extrusion operation is completed. After using first clamp plate 4 and 5 compaction lower cover plate 300 of second clamp plate and upper cover plate 400, can carry out weldment work, make lower cover plate 300 and upper cover plate 400 and middle part fixed plate 200, end plate 500 welding, through the restraint of lower cover plate 300 and upper cover plate 400, restrict the bulging force of first electric core group and second electric core group, the volume of maintaining first electric core group and second electric core group does not change, middle part fixed plate 200 also can not take place the displacement.
The use method of the battery module grouping fixture of the embodiment ensures that the middle fixing plate 200 is always in a stable and unchangeable position in the assembly process of the battery module, each battery cell 100 does not displace all the time after extrusion is completed, the assembly precision is high, and the grouping quality is good.
Preferably, a plurality of fixing holes are formed in the middle fixing plate 200, and the first positioning pin 22 and the second positioning pin 32 are in interference fit with the fixing holes, so that the stability of the middle fixing plate 200 is ensured.
Preferably, the lower cover plate 300 and the upper cover plate 400 are both provided with openings for the first positioning pins 22 or the second positioning pins 32 to pass through, so that even after the lower cover plate 300 and the upper cover plate 400 are installed, the first positioning piece 2 and the second positioning piece 3 can still be continuously installed, and the position of the middle fixing plate 200 is ensured to be unchanged.
Preferably, the distance between the first side pressing plate 12 and the second side pressing plate 13 is greater than the width of the upper cover plate 400, and the size of the through hole on the bottom plate 11 is greater than the size of the lower cover plate 300, so that the lower cover plate 300 and the upper cover plate 400 can be smoothly installed under the condition that only the first positioning element 2 or the second positioning element 3 is detached, and grouping operation is facilitated.
Reference throughout this specification to the description of the terms "preferred," "optional," or the like, as used in describing preferred embodiments of the present invention, means that a particular feature, structure, material, or characteristic described in connection with the example or illustration is included in at least one example or illustration of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above examples are only intended to illustrate the details of the invention, which is not limited to the above details, i.e. it is not intended that the invention must be implemented in such detail. It should be understood by those skilled in the art that any modification of the present invention, equivalent substitutions of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.
Claims (9)
1. The battery module grouping clamp is characterized by comprising a clamp body, a first positioning piece and a second positioning piece, wherein the clamp body comprises a bottom plate, two side pressing plates and two clamping mechanisms, a through hole is formed in the middle of the bottom plate, the two side pressing plates are detachably arranged on two opposite edges of the bottom plate, the two clamping mechanisms are respectively arranged at two ends of the side pressing plates, the first positioning piece comprises a first positioning plate and a plurality of first positioning pins arranged on one side of the first positioning plate, the second positioning piece comprises a second positioning plate and a plurality of second positioning pins arranged on one side of the second positioning plate, two ends of the first positioning plate can be fixed on one side, away from the side pressing plates, of the bottom plate, so that the plurality of first positioning pins penetrate through the through hole, two ends of the second positioning plate can be respectively fixed at the tops of the two side pressing plates, enabling a plurality of second positioning pins to extend into a gap between the two side pressing plates;
the battery module grouping clamp further comprises a first pressing plate and a second pressing plate, the first pressing plate comprises a first plate body and a first convex block, the second pressing plate comprises a second plate body and a second convex block, the first plate body can be connected with one side, deviating from the side pressing plates, of the bottom plate, so that the first convex block penetrates through the through hole, the second plate body can be connected with the tops of the side pressing plates, and the second convex block extends into the space between the two side pressing plates and is opposite to the first convex block.
2. The battery module unitizing jig of claim 1, wherein the first tab and the second tab each comprise a first portion and a second portion disposed in a spaced apart relationship, the first portion and the second portion forming a recessed configuration therebetween, the first positioning plate and the second positioning plate being disposable within the recessed configuration.
3. The battery module grouping jig of claim 1, wherein a pressing plate is provided on each of the two clamping mechanisms, the pressing plate is disposed perpendicular to the bottom plate, and the pressing plate is connected to the driving mechanism and linearly reciprocates in a gap between the two side pressing plates.
4. The battery module unitizing jig of claim 3, wherein the pressing plate is provided with a pressure gauge thereon.
5. The battery module unitizing jig of claim 1, wherein the number of each of the first positioning pins and the second positioning pins is at least three.
6. The use method of the battery module grouping clamp is characterized by comprising the following steps:
s1, providing parts of a battery module, wherein the parts comprise a plurality of battery cells, an upper cover plate, a lower cover plate, two side plates, two end plates and a middle fixing plate;
s2, mounting a first positioning piece on one side of a bottom plate, and mounting a side pressing plate on the other side of the bottom plate;
s3, assembling the middle fixing plate on a first locating pin of the first locating component, and placing a plurality of electric cores on two sides of the middle fixing plate to form a first electric core group and a second electric core group;
s4, fixedly connecting the end plate with the electric core positioned on the outermost side of the first electric core group or the second electric core group;
s5, installing another side pressure plate on the bottom plate, enabling a second positioning piece to be installed on the two side pressure plates, and inserting a second positioning pin into the middle fixing plate;
s6, enabling the extrusion plate to move towards the end plate and extrude the end plate until a set pressure is reached, and enabling the first electric core group and the second electric core group to reach a set volume;
s7, removing the first positioning piece, enabling the lower cover plate to be bonded with the first electric core group and the second electric core group, installing the first positioning piece back, and installing a first pressing plate to enable the lower cover plate to tightly press the first electric core group and the second electric core group;
s8, removing the second positioning piece, enabling the upper cover plate to be bonded with the first electric core group and the second electric core group, assembling the second positioning piece back, and installing a second pressing plate to enable the upper cover plate to tightly press the first electric core group and the second electric core group;
s9, detaching the first pressing plate and the first positioning piece, welding the lower cover plate with the middle fixing plate and the end plate, and installing the first positioning piece back;
s10, removing the second pressing plate and the second positioning piece to weld the upper cover plate with the middle fixing plate and the end plate to form a semi-finished module;
s11, the first positioning piece is disassembled, the module semi-finished product is separated from the clamp body, and the two side plates are installed on the module semi-finished product to obtain the battery module.
7. The use method of the battery module grouping jig as set forth in claim 6, wherein the middle fixing plate is provided with a plurality of fixing holes, and the first positioning pin and the second positioning pin are in interference fit with the fixing holes.
8. The method as claimed in claim 6, wherein the lower cover plate and the upper cover plate are provided with openings for the first positioning pins or the second positioning pins to pass through.
9. The method of claim 6, wherein the lateral plates are spaced apart from each other by a distance greater than the width of the upper cover plate, and the through holes of the bottom plate have a size greater than the size of the lower cover plate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911115356.9A CN110808401B (en) | 2019-11-14 | 2019-11-14 | Battery module grouping clamp and using method |
| PCT/CN2019/126042 WO2021093084A1 (en) | 2019-11-14 | 2019-12-17 | Battery module grouping clamp and usage method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911115356.9A CN110808401B (en) | 2019-11-14 | 2019-11-14 | Battery module grouping clamp and using method |
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| Publication Number | Publication Date |
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| CN110808401A CN110808401A (en) | 2020-02-18 |
| CN110808401B true CN110808401B (en) | 2021-06-01 |
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| CN201911115356.9A Active CN110808401B (en) | 2019-11-14 | 2019-11-14 | Battery module grouping clamp and using method |
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| CN (1) | CN110808401B (en) |
| WO (1) | WO2021093084A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113414535A (en) * | 2021-07-08 | 2021-09-21 | 湖北亿纬动力有限公司 | Battery module stacks welding frock structure |
| CN113688530B (en) * | 2021-08-30 | 2024-03-08 | 厦门金龙汽车新能源科技有限公司 | Solving method of optimal power distribution scheme of ultrathin battery pack |
| CN115863802B (en) * | 2021-09-26 | 2024-01-09 | 宁德时代新能源科技股份有限公司 | Battery cell formation clamp and battery cell formation system |
| CN113889657B (en) * | 2021-11-02 | 2023-08-22 | 芜湖天弋能源科技有限公司 | Assembling device of battery module |
| CN115229320B (en) * | 2022-07-15 | 2024-03-29 | 立讯智造(浙江)有限公司 | Centering device and method of use thereof |
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| CN110808401A (en) | 2020-02-18 |
| WO2021093084A1 (en) | 2021-05-20 |
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