CN220154466U - Restraining force device on battery cell - Google Patents
Restraining force device on battery cell Download PDFInfo
- Publication number
- CN220154466U CN220154466U CN202321408344.7U CN202321408344U CN220154466U CN 220154466 U CN220154466 U CN 220154466U CN 202321408344 U CN202321408344 U CN 202321408344U CN 220154466 U CN220154466 U CN 220154466U
- Authority
- CN
- China
- Prior art keywords
- battery cell
- restraining force
- torque wrench
- force device
- clamping parts
- 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.)
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- 230000000452 restraining effect Effects 0.000 title claims abstract description 23
- 210000005056 cell body Anatomy 0.000 claims abstract description 36
- 210000004027 cell Anatomy 0.000 claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims description 19
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052744 lithium Inorganic materials 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Battery Mounting, Suspending (AREA)
Abstract
The utility model relates to the technical field of lithium batteries, and discloses a restraining force device on a battery cell, which comprises clamping parts and a torque wrench, wherein the number of the clamping parts is at least two, a battery cell body is arranged between two adjacent clamping parts, and the distance between the two adjacent clamping parts is adjusted by the torque wrench so as to carry out upper restraining force. According to the battery cell upper constraint force device provided by the utility model, the distance between the two adjacent clamping parts is adjusted through the torque wrench, so that the two clamping parts clamp the battery cell body between the two clamping parts, the upper constraint force on the battery cell body is realized, and the battery cell body can be tested under a certain constraint pressure, so that negative influence caused by expansion is eliminated.
Description
Technical Field
The utility model relates to the technical field of lithium batteries, in particular to a restraining force device on a battery cell.
Background
The influence of the restraining force on the performance of the battery cell is being more and more focused and researched, and the positive electrode, the negative electrode, the electrolyte, the diaphragm and other components determine that the battery cell comprises various interfaces based on the working principle of the lithium ion battery cell, and part of materials and processes are porous structures, and the influence of the electrochemical performance of the battery cell, which is free from the restraining force, is determined by the addition of unavoidable side reaction gas production.
Unlike a mountain where the cylindrical battery cell and the square battery cell have hard shells, the soft-package battery cell is packaged by adopting an aluminum plastic film, and the influence of constraint force on the battery cell is relatively obvious. Therefore, research on performance effects of restraining force on lithium battery cells, particularly soft-pack battery cell electrochemistry and the like is very necessary.
In the charge and discharge process, the battery cell can expand and shrink, and the battery cell can be expanded continuously to generate internal pressure due to the effect of side reaction after long-term use, so that the internal pressure can influence the structure and the performance of the battery cell and can influence the pack structure, and therefore, when the battery cell is tested, the battery cell needs to be restrained by force, and the expansion of the battery cell in the test process is restrained.
Disclosure of Invention
In order to solve the technical problems in the background technology, the utility model provides a restraining force device on a battery cell.
The utility model provides a restraining force device on a battery cell, which comprises clamping parts and a torque wrench, wherein the number of the clamping parts is at least two, a battery cell body is arranged between two adjacent clamping parts, and the space between the two adjacent clamping parts is adjusted by the torque wrench so as to carry out restraining force.
As a further optimized scheme of the utility model, two adjacent clamping parts are penetrated through by the screw rod, the free end thread of the screw rod is sleeved with the nut, and the nut is screwed by the torque wrench to adjust the distance between the two adjacent clamping parts.
As a further optimized scheme of the utility model, the torque wrench comprises a sleeve, one end of the sleeve is provided with a groove, the groove is matched with the nut, and the screwing of the nut is completed by rotating the sleeve.
As a further optimized scheme of the utility model, the battery cell assembly device further comprises a bearing table and a manipulator, wherein the bearing table is used for placing the clamping part and the battery cell body, and the manipulator is used for picking up and assembling the clamping part and the battery cell body.
As a further optimized scheme of the utility model, the utility model further comprises a lifting mechanism for adjusting the distance between the bearing table and the manipulator.
As a further optimized scheme of the utility model, the battery cell assembly device further comprises a conveying mechanism which is used for conveying the assembled battery cell body and the clamping part.
As a further optimized scheme of the utility model, the torque wrench further comprises a cantilever and a driving piece, one end of the cantilever is arranged on a bracket of the conveying mechanism, the driving piece is arranged on the other end of the cantilever, and the sleeve is arranged on the movable end of the driving piece.
According to the battery cell upper constraint force device provided by the utility model, the distance between the two adjacent clamping parts is adjusted through the torque wrench, so that the two clamping parts clamp the battery cell body between the two clamping parts, the upper constraint force on the battery cell body is realized, and the battery cell body can be tested under a certain constraint pressure, so that negative influence caused by expansion is eliminated.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is an enlarged schematic view of the utility model at A in FIG. 1;
fig. 3 is a schematic diagram of the torque wrench for applying force to the battery cell body according to the present utility model.
Description of the drawings: 1. an outer frame; 2. a carrying platform; 3. a conveying mechanism; 4. a manipulator; 5. a torque wrench; 51. a cantilever; 52. a driving member; 53. a sleeve; 6. a lifting mechanism; 7. an electric slide rail; 8. a clamp base plate; 9. a clamp cover plate; 10. a cell body; 11. a screw; 12. and (3) a nut.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar symbols indicate like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.
It is to be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," and the like are directional or positional relationships as indicated based on the drawings, merely to facilitate describing the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the utility model.
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" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
Referring to fig. 1-3, an upper restraining force device for a battery cell includes at least two clamping portions and a torque wrench 5, wherein a battery cell body 10 is disposed between two adjacent clamping portions, and the space between the two adjacent clamping portions is adjusted by the torque wrench 5 to perform an upper restraining force;
specifically, two adjacent clamping parts penetrate through the screw 11, the nut 12 is sleeved at the free end thread of the screw 11, and the nut 12 is screwed through the torque wrench 5 to adjust the distance between the two adjacent clamping parts;
further, the clamping parts are a clamp bottom plate 8 and a clamp cover plate 9, the number of screws 11 is four and the screws are respectively arranged at four corners of the upper surface of the clamp bottom plate 8, sleeve holes matched with the screws 11 are formed in the four corners of the clamp cover plate 9, the clamp cover plate 9 is pressed above the clamp bottom plate 8, the top end of the screws 11 passes through the sleeve holes and is in threaded sleeve with nuts 12, the nuts 12 are screwed up through the torque wrench 5, so that the clamp bottom plate 8 and the clamp cover plate 9 clamp a battery cell body 10 between the clamp bottom plate 8 and the clamp cover plate 9, and upper constraint force on the battery cell body 10 is realized;
it should be noted that, the length of the screw 11 is greater than the sum of the thicknesses of the cell body 10 and the clamp cover 9;
the clamping part can also be a plurality of clamping plates, the clamping plates penetrate through the clamping plates through the screw 11, one battery cell body 10 is arranged between every two adjacent clamping plates, and nuts 12 are screwed at two ends of the screw 11 to enable the clamping plates to be close to each other, so that upper constraint force of the battery cell bodies 10 is realized;
the device also comprises an outer frame 1, wherein a bearing table 2 and a manipulator 4 are arranged in the outer frame 1, the bearing table 2 is used for placing the clamping part and the battery cell body 10, and the manipulator 4 is used for picking up and assembling the clamping part and the battery cell body 10;
specifically, the number of the bearing tables 2 is two, a conveying mechanism 3 is arranged between the two bearing tables 2 and used for conveying assembled battery cell bodies 10 and clamping parts, one bearing table 2 is used for placing a clamp bottom plate 8, a clamp cover plate 9 and nuts 12, the other bearing table 2 is used for placing the battery cell bodies 10, the clamp bottom plate 8 is placed on a conveying surface of the conveying mechanism 3 through a manipulator 4, then the battery cell bodies 10 are placed in the middle of the upper surface of the clamp bottom plate 8, then the clamp cover plate 9 is pressed on the upper surface of the battery cell bodies 10, the nuts 12 are screwed through a torque wrench 5, and therefore the upper constraint force of the battery cell bodies 10 can be achieved, and after the upper constraint force is finished, the battery cell bodies 10 are conveyed to a testing area through the conveying mechanism 3 for performance testing;
further, the conveying mechanism 3 may be a belt conveyor, a roller conveyor or other conveying structures in the prior art, and the starting and stopping of the conveying mechanism 3 are controlled by an external controller so as to convey the battery cell body 10 after the power is applied to a test area;
further, the height of the bearing table 2 is adjustable, the lifting mechanism 6 is arranged at the bottom of the inner cavity of the outer frame 1, the bearing table 2 is arranged at the movable end of the lifting mechanism 6 and used for adjusting the distance between the bearing table 2 and the manipulator 4, and the manipulator 4 is convenient for picking up materials on the bearing table 2;
the lifting mechanism 6 can be a cylinder, an oil cylinder or a hydraulic lifting structure in the prior art;
further, an electric slide rail 7 is further installed at the top of the inner cavity of the outer frame 1, the manipulator 4 is installed on the movable end of the electric slide rail 7, and the moving track of the electric slide rail 7 is perpendicular to the conveying track of the conveying mechanism 3, so that the electric slide rail 7 can drive the manipulator 4 to reciprocate above the two bearing tables 2, and the electric core body 10, the clamp bottom plate 8, the clamp cover plate 9 and the nut 12 can be picked up; the electric slide rail 7 can also be replaced by a linear slide rail, a screw slide rail and other horizontal displacement structures;
specifically, the torque wrench 5 includes a cantilever 51, a driving member 52 and a sleeve 53, one end of the cantilever 51 is mounted on a bracket of the conveying mechanism 3, the driving member 52 is mounted on the other end of the cantilever 51, the sleeve 53 is mounted on a movable end of the driving member 52, the other end of the sleeve 53 has a groove, the groove is matched with the nut 12, and screwing of the nut 12 is completed by rotating the sleeve 53; the drive 52 may be an electric motor, or other combination in the art;
further, the number of the torque wrenches 5 is four and the torque wrenches 5 are distributed in a rectangular array, and four nuts 12 can be screwed simultaneously through the four torque wrenches 5;
further, the driving piece 52 is an electric motor, a groove at the bottom end of the sleeve 53 is sleeved outside the nut 12, and the sleeve 53 is driven to rotate by the electric motor, so that the sleeve 53 screws the nut 12, and the torsion is transferred to the clamp cover plate 9, so that the battery cell body 10 is clamped, and the upper constraint force on the battery cell body 10 is realized;
further, the nut 12 is a hexagonal nut, the groove is a regular hexagonal groove matched with the nut 12, the depth of the groove is larger than the length of the screw 11, and when the nut 12 is actually screwed, the free end of the screw 11 extends into the groove so as to screw the nut 12;
further, the cantilever 51 is far away from the one end liftable rotatable of driving piece 52, the electric putter is installed on the support of conveying mechanism 3, electric putter's push end up and installation motor, the one end that driving piece 52 was kept away from to cantilever 51 and the output shaft fixed connection of motor up, drive cantilever 51 through the motor and carry out the angle modulation, so that drive sleeve 53 and remove to the top of screw rod 11, rethread electric putter drives cantilever 51 and moves down, make sleeve 53 suit in the outside of nut 12, thereby conveniently revolve the screwing to nut 12, realize the upper constraint power to electric core body 10.
In summary, the distance between two adjacent clamping parts is adjusted by the torque wrench 5, so that the two clamping parts clamp the cell body 10 therebetween, an upper restraining force of the cell body 10 is realized, and the cell body 10 can be tested under a certain restraining pressure, so that negative effects caused by expansion are eliminated.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (7)
1. The utility model provides a restraining force device on electric core, its characterized in that includes clamping part and torque wrench (5), and the quantity of clamping part is two at least, and electric core body (10) set up between two adjacent clamping parts, adjusts the interval of two adjacent clamping parts in order to go up the restraining force through torque wrench (5).
2. The restraining force device on a battery cell according to claim 1, wherein two adjacent clamping portions penetrate through a screw rod (11), a nut (12) is sleeved at the free end of the screw rod (11), and the nut (12) is screwed through a torque wrench (5) to adjust the distance between the two adjacent clamping portions.
3. A restraining force device on a cell according to claim 2, characterized in that the torque wrench (5) comprises a sleeve (53), one end of the sleeve (53) is provided with a groove, and the groove is adapted to the nut (12), and the screwing of the nut (12) is completed by rotating the sleeve (53).
4. A restraining force device on a battery cell according to claim 3, further comprising a carrying table (2) and a manipulator (4), wherein the carrying table (2) is used for placing a clamping part and the battery cell body (10), and the manipulator (4) is used for picking up and assembling the clamping part and the battery cell body (10).
5. The on-cell restraining force device of claim 4, further comprising a lifting mechanism (6) for adjusting a distance between the carrier (2) and the manipulator (4).
6. The on-cell restraining force device of claim 4, further comprising a conveying mechanism (3) for conveying the assembled cell body (10) and the clamping portion.
7. The on-cell restraining force device according to claim 6, wherein the torque wrench (5) further comprises a cantilever (51) and a driving member (52), one end of the cantilever (51) is mounted on the support of the conveying mechanism (3), the driving member (52) is mounted on the other end of the cantilever (51), and the sleeve (53) is mounted on the movable end of the driving member (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321408344.7U CN220154466U (en) | 2023-06-05 | 2023-06-05 | Restraining force device on battery cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321408344.7U CN220154466U (en) | 2023-06-05 | 2023-06-05 | Restraining force device on battery cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220154466U true CN220154466U (en) | 2023-12-08 |
Family
ID=89015372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321408344.7U Active CN220154466U (en) | 2023-06-05 | 2023-06-05 | Restraining force device on battery cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220154466U (en) |
-
2023
- 2023-06-05 CN CN202321408344.7U patent/CN220154466U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |