CN220019661U - Battery cell short circuit detection equipment - Google Patents
Battery cell short circuit detection equipment Download PDFInfo
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- CN220019661U CN220019661U CN202321124894.6U CN202321124894U CN220019661U CN 220019661 U CN220019661 U CN 220019661U CN 202321124894 U CN202321124894 U CN 202321124894U CN 220019661 U CN220019661 U CN 220019661U
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- short circuit
- circuit detection
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- 238000001514 detection method Methods 0.000 title claims abstract description 37
- 238000003825 pressing Methods 0.000 claims abstract description 234
- 230000007246 mechanism Effects 0.000 claims abstract description 71
- 238000010030 laminating Methods 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims description 59
- 238000002788 crimping Methods 0.000 claims description 13
- 239000000758 substrate Substances 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
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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
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- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a battery cell short circuit detection device, which comprises: the laminating device is arranged at intervals and can be used for laminating different parts of the battery core, and each laminating device comprises: the first pressing plate, the second pressing plate and the driving mechanism are oppositely arranged, and the driving mechanism is used for driving the first pressing plate and the second pressing plate to move relatively and can press the battery cell. Therefore, different parts on the battery cell can be fully pressed, each area on the battery cell can be effectively stressed, the total detection of foreign matters inside the battery cell can be realized, and the battery cell can be prevented from being missed, so that the safety and the reliability of the battery cell can be obviously improved.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a battery cell short circuit detection device.
Background
In the prior art, the cell short circuit test equipment mainly comprises an upper pressing plate, a lower pressing plate and a detection probe. The battery cell is formed by stacking a positive plate, a negative plate and a diaphragm. In the coating process of the pole piece, due to process limitation, certain thinning areas exist in the joint areas of the pole lugs, the pole tails and the dressing, so that the thickness of the two ends of the pole lug of the battery core is different from the middle thickness. Therefore, when the conventional short circuit test equipment is used for short circuit detection of the battery cells, the problem that the two end areas of the thinner battery cells are not pressed due to inconsistent thickness of the battery cells, so that foreign matters in the two end areas of the thinner battery cells cannot be effectively stressed to pierce a diaphragm to cause short circuit of the battery cells, and further abnormal battery cells are missed to be detected, and the abnormal battery cells easily flow out of the market to cause explosion of the battery.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to provide a cell short circuit detecting device, which can fully press different parts of a cell, and can ensure that each area of the cell can be effectively stressed.
According to an embodiment of the utility model, a cell short circuit detection device includes: the laminating device is arranged at intervals and is used for laminating different parts of the battery core, and each laminating device comprises: the battery cell comprises a first pressing plate, a second pressing plate and a driving mechanism, wherein the first pressing plate and the second pressing plate are oppositely arranged, and the driving mechanism is used for driving the first pressing plate and the second pressing plate to move relatively so as to press the battery cell.
From this, a plurality of compression fittings interval sets up in the electric core short circuit check out test set, can pressfitting different parts on the electric core, moreover, every compression fittings has independent actuating system, can adjust the position of first clamp plate and second clamp plate like this, can abundant pressfitting different parts on the electric core, can guarantee that every regional homoenergetic effectively atress on the electric core, also can realize the total inspection to the inside foreign matter of electric core, can also avoid electric core to leak and examine to can show the security and the reliability that improve the electric core.
According to some embodiments of the utility model, the cell comprises: a main body portion and a thinned portion provided at both ends of the main body portion; the plurality of pressing devices at least comprise: the device comprises a main pressing device and side pressing devices, wherein the side pressing devices are located on two sides of the main pressing device, the main pressing device is used for pressing the main body portion, the side pressing devices are used for pressing the thinning portion, and pressure heads are arranged on the first pressure plate and the second pressure plate in the side pressing devices.
According to some embodiments of the utility model, in the side pressing device, the first pressing plate and the second pressing plate are both in transmission connection with the driving mechanism, so that the first pressing plate and the second pressing plate synchronously move towards or away from each other.
According to some embodiments of the utility model, the side crimping device further comprises: the linkage mechanism is arranged on the first pressing plate, and the linkage mechanism is arranged between the first pressing plate and the second pressing plate so as to enable the first pressing plate and the second pressing plate to synchronously move in opposite directions or back to each other.
According to some embodiments of the utility model, the side crimping device further comprises: the first pressing plate and the second pressing plate are movably arranged on the substrate; the linkage mechanism comprises: the first transmission piece, second transmission piece and third transmission piece, first transmission piece set up in first clamp plate, the second transmission piece set up in the second clamp plate, the third transmission piece set up on the base plate and still set up in first transmission piece with between the second transmission piece.
According to some embodiments of the utility model, the first transmission member is a first rack, the second transmission member is a second rack, the third transmission member is a gear, the first rack and the second rack are disposed opposite to each other, and the gear is meshed between the first rack and the second rack.
According to some embodiments of the utility model, the side crimping device further comprises: the device comprises a first mounting plate, a second mounting plate and a pressure sensor, wherein the first pressing plate, the driving mechanism, the first transmission piece and the pressure sensor are arranged on the first mounting plate, and the second pressing plate is arranged on the second mounting plate.
According to some embodiments of the utility model, the linkage mechanisms are two, and the two linkage mechanisms are respectively arranged between two ends of the first pressing plate and two ends of the second pressing plate.
According to some embodiments of the utility model, the side crimping device further comprises: and the elastic compensation piece is arranged on at least one of the first pressing plate and the second pressing plate.
According to some embodiments of the utility model, the elastic compensator is a thermally conductive silicone.
According to some embodiments of the utility model, at least one of the first platen and the second platen includes a mounting slot, and the main press-fit device further includes: the elastic pressing mechanism is arranged in the mounting groove.
According to some embodiments of the utility model, the elastic pressing mechanism comprises: the elastic piece is arranged in the mounting groove; the pressing piece is arranged on the elastic piece, and the end part of the pressing piece protrudes out of the mounting groove to be used for being in contact with the battery cell.
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
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a front view of a cell short detection apparatus according to an embodiment of the present utility model;
fig. 2 is a schematic structural view of a cell short circuit detection apparatus according to an embodiment of the present utility model;
fig. 3 is a schematic structural view of an operating state of a cell short-circuit detection apparatus according to an embodiment of the present utility model;
fig. 4 is a schematic structural view of a thinned portion of a battery cell according to an embodiment of the present utility model;
fig. 5 is a schematic structural view of a side press-fitting device according to an embodiment of the present utility model;
fig. 6 is a side view of a side crimping device according to an embodiment of the present utility model.
Reference numerals:
100. the cell short circuit detection equipment;
10. a pressing device; 11. a first platen; 12. a second pressing plate; 13. a driving mechanism;
20. a main pressing device; 21. an elastic pressing mechanism; 211. pressing the piece;
30. a side press-fit device; 31. a linkage mechanism; 32. a first transmission member; 33. a second transmission member; 34. a third transmission member;
35. a substrate; 36. a first mounting plate; 37. a second mounting plate; 38. a pressure sensor; 39. an elastic compensation member;
40. a battery cell; 41. a main body portion; 42. a thinning portion;
50. a pressure head; 51. a tab; 52. a slider assembly.
Detailed Description
Embodiments of the present utility model will be described in detail below, with reference to the accompanying drawings, which are exemplary.
A cell short detection apparatus 100 according to an embodiment of the present utility model is described below with reference to fig. 1 to 6.
As shown in fig. 1, a cell short circuit detection apparatus 100 according to an embodiment of the present utility model includes: the plurality of laminating devices 10, the plurality of laminating devices 10 are arranged at intervals and can be used for laminating different parts of the battery cell 40, and each laminating device 10 comprises: the first pressing plate 11, the second pressing plate 12 and the driving mechanism 13, the first pressing plate 11 and the second pressing plate 12 are oppositely arranged, and the driving mechanism 13 is used for driving the first pressing plate 11 and the second pressing plate 12 to move relatively and can press the battery cell 40.
Specifically, as shown in fig. 1, the electrical core short circuit detection device 100 mainly comprises a plurality of pressing devices 10, the plurality of pressing devices 10 are arranged at intervals in the length direction of the electrical core 40 and can be used for pressing different parts of the electrical core 40, each pressing device 10 comprises a first pressing plate 11, a second pressing plate 12 and a driving mechanism 13, so that an independent driving system can be formed, and in particular, the driving mechanism 13 can drive the first pressing plate 11 and the second pressing plate 12 to move relatively, wherein the first pressing plate 11 and the second pressing plate 12 can be simultaneously close to the electrical core 40 to press the electrical core 40, and the second pressing plate 12 can also be fixed to press the electrical core 40 through the movement of the first pressing plate 11, so that the electrical core short circuit detection device has the advantage of multifunctional pressing. The positions of the first pressing plate 11 and the second pressing plate 12 in each pressing device 10 can be adjusted, so that different parts on the battery cell 40 can be sufficiently pressed, each area of the battery cell 40 can be effectively stressed, the total detection of foreign matters in the battery cell 40 can be realized, the battery cell 40 can be prevented from being missed, and the safety and the reliability of the battery cell 40 can be obviously improved.
From this, a plurality of compression fittings 10 interval sets up in the electric core short circuit check out test set 100, can pressfitting different parts on the electric core 40, moreover, every compression fittings 10 has independent actuating system, can adjust the position of first clamp plate 11 and second clamp plate 12 like this, can abundant pressfitting different parts on the electric core 40, can guarantee that every regional homoenergetic effectively atress on the electric core 40, also can realize the total inspection to the inside foreign matter of electric core 40, still can avoid electric core 40 to leak to examine, thereby can show the security and the reliability that improve electric core 40.
According to some embodiments of the utility model, as shown in fig. 2-4, the cell 40 includes: a main body 41 and a thinned portion 42, the thinned portion 42 being provided at both ends of the main body 41, the plurality of pressing devices 10 at least include: the main press-fit device 20 and the side press-fit device 30, the side press-fit device 30 is located at both sides of the main press-fit device 20, the main press-fit device 20 is used for pressing the main body portion 41, the side press-fit device 30 is used for pressing the thinned portion 42, and in the side press-fit device 30, the first press plate 11 and the second press plate 12 are each provided with a press head 50. Because of the limitation of the manufacturing process of the battery cell 40, the battery cell 40 mainly comprises a main body 41 and a thinned portion 42, and the thinned portion 42 is located at two ends of the main body 41. The plurality of pressing devices 10 in the cell short circuit detection equipment 100 are divided into a main pressing device 20 and a side pressing device 30 according to different areas of the cell 40, the distance between the first pressing plate 11 in the main pressing device 20 and the first pressing plate 11 in the side pressing device 30 is not more than 2mm, the smaller the distance is, the better the distance is, and the non-pressed area where the distance exists can reach more than 80% of the periphery of the pressed area due to factors such as rigidity of a protective sheet, rigidity of a pole piece and a diaphragm, friction force and the like, and the pressure intensity born by the inside of the cell 40 can reach more than 80% of the periphery of the pressed area under the condition that the first pressing plate 11 in the main pressing device 20 and the first pressing plate 11 in the side pressing device 30 keep moving and do not interfere. In addition, the main pressing device 20 is used for pressing the main body 41 of the battery core 40, namely, the middle part of the battery core 40, the side pressing device 30 is used for pressing the thinned part 42, namely, two ends of the battery core 40, so, the battery core short circuit detection equipment 100 can firstly press the main body 41 of the battery core 40 by the main pressing device 20, then according to the change of the thinned part 42 after the battery core 40 is stressed, the position of the side pressing device 30 can be adjusted, finally, the thinned part 42 of the battery core 40 is pressed by the side pressing device 30, so that the thinned part 42 of the battery core 40 is fully stressed, the situation that a gap exists between the side pressing device 30 and the thinned part 42 of the battery core 40 and the situation that the whole detection of the internal foreign matters of the battery core 40 can be realized, and the pressure heads 50 are arranged on the first pressure plate 11 and the second pressure plate 12 in the side pressing device 30, specifically, the first pressure plate 11 and the second pressure plate 12 arranged on the left side and the right side of the battery core short circuit detection equipment 100 can be metal pressure heads, the pressure heads 50 are arranged on the upper and lower sides of the upper pressure heads and lower pressure heads respectively, the upper and lower pressure heads 50 of the battery core 40 can be effectively pressed in the upper and lower pressure heads, and the lower pressure heads 50 in the process of the battery core short circuit detection equipment 100 can be obviously detected, and the situation that the electric power can be obviously connected to the left and lower side 50 is detected, and the power source side of the battery core is in the process is obviously has high.
According to an embodiment of the present utility model, as shown in fig. 5 and 6, in the side pressing device 30, the first pressing plate 11 and the second pressing plate 12 are both in transmission connection with the driving mechanism 13, so that the first pressing plate 11 and the second pressing plate 12 move synchronously in opposite directions or back to each other. Specifically, the driving mechanism 13 in the side pressing device 30 is in transmission connection with the first pressing plate 11 and the second pressing plate 12, so that the second pressing plate 12 moves along with the first pressing plate 11 while the first pressing plate 11 moves, and synchronous opposite or backward movement of the first pressing plate 11 and the second pressing plate 12 can be realized, so that the electric core 40 can be conveniently approached, the electric core 40 can be conveniently kept away, and the pressing efficiency of the electric core short circuit detection device 100 can be improved.
According to some embodiments of the present utility model, as shown in fig. 5 and 6, the side crimping apparatus 30 further includes: the linkage mechanism 31, the driving mechanism 13 is disposed on the first pressing plate 11, and the linkage mechanism 31 is disposed between the first pressing plate 11 and the second pressing plate 12, so that the first pressing plate 11 and the second pressing plate 12 can synchronously move towards each other or away from each other. The driving mechanism 13 of the side pressing device 30 is disposed on the first pressing plate 11, the linkage mechanism 31 is disposed between the first pressing plate 11 and the second pressing plate 12, specifically, one side of the linkage mechanism 31, which is close to the driving mechanism 13, is connected to the first pressing plate 11, and the other side of the linkage mechanism 31 is connected to the second pressing plate 12, so that the driving mechanism 13 drives the first pressing plate 11 to move, and meanwhile, due to the arrangement of the linkage mechanism 31, the second pressing plate 12 and the first pressing plate 11 can synchronously move in opposite directions to jointly press the battery cell 40, after the battery cell 40 is pressed, the first pressing plate 11 and the second pressing plate 12 can synchronously back away from the battery cell 40, so that the battery cell 40 can be maintained in a central line area after being pressed, the situations of underlaying, serious deformation and the like at two ends of the battery cell 40 can be avoided, and the quality of the battery cell 40 can be effectively ensured.
According to some embodiments of the present utility model, as shown in fig. 5, the side crimping apparatus 30 further includes: the base plate 35, the first platen 11 and the second platen 12 are movably provided to the base plate 35, and the link mechanism 31 includes: the first transmission member 32, the second transmission member 33 and the third transmission member 34, the first transmission member 32 is disposed on the first pressing plate 11, the second transmission member 33 is disposed on the second pressing plate 12, the third transmission member 34 is disposed on the substrate 35, and the third transmission member 34 is further disposed between the first transmission member 32 and the second transmission member 33. The first pressing plate 11, the second pressing plate 12 and the linkage mechanism 31 are integrally arranged on the base plate 35, the base plate 35 is used for bearing and installing the side pressing device 30, the first transmission piece 32 in the linkage mechanism 31 is arranged on the first pressing plate 11, the first transmission piece 32 and the second transmission piece 33 are in transmission fit with the base plate 35 through the sliding block assembly 52, the driving mechanism 13 drives the first pressing plate 11 to move, meanwhile, the first transmission piece 32 connected to the first pressing plate 11 moves along with the first pressing plate, and because the third transmission piece 34 is arranged between the first transmission piece 32 and the second transmission piece 33 and is in transmission connection with the first transmission piece 32 and the second transmission piece 33 respectively, when the first transmission piece 32 moves, the third transmission piece 34 drives the second transmission piece 33 to move in the direction opposite to the movement of the first transmission piece 32, and therefore, the linkage mechanism 31 can realize synchronous opposite or reverse movement.
According to an embodiment of the present utility model, as shown in fig. 5, the first transmission member 32 is a first rack, the second transmission member 33 is a second rack, and the third transmission member 34 is a gear, where the first rack and the second rack are disposed opposite to each other, and the gear is engaged between the first rack and the second rack. Specifically, the first rack is driven to move by the first pressing plate 11, and the gear is meshed between the first rack and the second rack, so that the first rack drives the gear to rotate, and the gear drives the second rack to move in the opposite direction to the first rack, and as a result, the first pressing plate 11 connected with the first rack and the second pressing plate 12 connected with the second rack can move in opposite directions to press the battery cell 40, and can also synchronously move away from the battery cell 40 in opposite directions.
According to some embodiments of the present utility model, as shown in fig. 5, the side crimping apparatus 30 further includes: the first mounting plate 36, the second mounting plate 37 and the pressure sensor 38, the first platen 11, the driving mechanism 13, the first transmission member 32 and the pressure sensor 38 are provided on the first mounting plate 36, and the second platen 12 is provided on the second mounting plate 37. The first mounting plate 36 is configured to facilitate the installation of the pressure sensor 38, the driving mechanism 13, the linkage mechanism 31 and the first pressing plate 11, the second mounting plate 37 is configured to facilitate the installation of the second pressing plate 12 and the linkage mechanism 31, the pressure sensor 38 is configured to control the pressure, so that the pressure at two ends of the electric core 40 can be ensured to be constant, the pressures of the first pressing plate 11 and the second pressing plate 12 on different parts of the electric core 40 can be controlled, further, the forces of the first pressing plate 11 and the second pressing plate 12 acting on the electric core 40 are the same, so that the stress on the electric core 40 is relatively uniform, no matter the thinned part 42 of the electric core 40 is ultra-thick or is thin, the first pressing plate 11 and the second pressing plate 12 can ensure that the pressure on the electric core 40 is unchanged, the upper surface and the lower surface of the electric core 40 can be simultaneously subjected to the same force, the two ends of the electric core 40 can be ensured not to be severely deformed under the action of sufficient pressure, and the situation that the electric core 40 can still be severely stressed due to the use of the linkage mechanism 31, and the electric core 40 can be ensured to be maintained in a safe and safe area after the electric core 40 is still stressed.
According to some embodiments of the present utility model, as shown in fig. 5, the number of the linkage mechanisms 31 is two, and the two linkage mechanisms 31 are respectively disposed between the two ends of the first pressing plate 11 and the two ends of the second pressing plate 12. Wherein, two link gear 31 set up the both ends at first clamp plate 11, and two link gear 31 also are located between the both ends of second clamp plate 12, so, two link gear 31 can carry out synchronous pressfitting to the portion 42 of thinning of electric core 40, can make the pressfitting in-process more stable, can promote the pressfitting efficiency of electric core short circuit check out test set 100 like this.
According to some embodiments of the utility model, as shown in fig. 2, the side crimping apparatus 30 further includes: an elastic compensation member 39, the elastic compensation member 39 being provided on at least one of the first platen 11 and the second platen 12. The first pressing plate 11 and the second pressing plate 12 in the side pressing device 30 are made of metal materials, and the surfaces of the first pressing plate 11 and the second pressing plate 12 are coated with non-metal materials, so that the risk of electric leakage during the short circuit test of the battery cell 40 can be prevented. The two ends of the battery cell 40 are respectively provided with the first pressing plate 11 and the second pressing plate 12, the first pressing plate 11 and the second pressing plate 12 at the two ends are driven by the two-end driving mechanism 13 to drive the linkage mechanism 31 to realize opposite movement or opposite movement, the elastic compensation piece 39 can be arranged on one side, close to the battery cell 40, of the first pressing plate 11 and the second pressing plate 12 at the two ends, and the elastic compensation piece 39 can adapt to the thickness of the thinned part 42 of the battery cell 40, so that the hot-pressing performance of the battery cell short circuit detection equipment 100 can be improved.
According to an embodiment of the present utility model, as shown in fig. 2, the elastic compensation member 39 is a thermally conductive silicone. Specifically, the elastic compensation member 39 may be made of a thermally conductive silica gel, which has elasticity, and the thermally conductive silica gel may adapt to the thickness variation of the electrical core 40, where the width and the inclination angle of the elastic compensation member 39 are determined by the width dimension of the electrical core 40, the thinning amount of the thinning portion 42, and the stacking layer number, so that when the electrical core 40 is pressed, the elastic compensation member 39 may be fully contacted with the thinning portion 42 of the electrical core 40, so as to ensure the lamination quality of the electrical core short circuit detection device 100.
According to some embodiments of the present utility model, as shown in fig. 2, at least one of the first platen 11 and the second platen 12 includes a mounting groove, and the main pressing device 20 further includes: the elastic pressing mechanism 21, the elastic pressing mechanism 21 is set in the installation groove. Wherein, the first clamp plate 11 and the second clamp plate 12 in the main compression fittings 20 all can set up the mounting groove, the installation of elasticity pressing mechanism 21 can be convenient for to the setting of mounting groove, elasticity pressing mechanism 21 and mounting groove are clearance fit, elasticity pressing mechanism 21 can stretch out and draw back in the mounting groove, so, can make the atress on electric core 40 surface more even, thereby can promote the quality of electric core short circuit check out test set 100 pressfitting, at least one mounting groove in first clamp plate 11 and the second clamp plate 12, can be provided with a plurality of elasticity pressing mechanism 21 on first clamp plate 11 and the second clamp plate 12 like this, at the pressfitting in-process, the atress on electric core 40 surface can be more stable in the setting of a plurality of elasticity pressing mechanism 21.
According to an embodiment of the present utility model, as shown in fig. 2, the elastic pressing mechanism 21 includes: the elastic component and the pressfitting piece 211, the elastic component sets up in the mounting groove, and pressfitting piece 211 sets up on the elastic component, and the tip protrusion of pressfitting piece 211 can be used for contacting with electric core 40 in the mounting groove. Specifically, the elastic pressing mechanism 21 mainly comprises an elastic member and a pressing member 211, the pressing member 211 is arranged on the elastic member, the pressing member 211 is used for contacting with the electric core 40 to press, wherein the elastic member can be a spring, the pressing member 211 can be a pin, the pin stretches out outwards in a normal state, the spring is compressed inwards when the pin is stressed until the outer surface of the pin is level with the plane of the first pressing plate 11 or the second pressing plate 12, the surface of the first pressing plate 11 or the second pressing plate 12 is level and smooth, pressure is mainly generated on the electric core 40, and effective extrusion of foreign matters inside the electric core 40 can be ensured. The plurality of pins are arranged at intervals, so that the carrying clamping jaw can be avoided, and the interval is determined by the width, the number and the like of the carrying clamping jaw.
In addition, in the process of detecting the battery cell 40, the battery cell 40 is carried to the plurality of press-fit pieces 211 of the second press plate 12 of the main press-fit device 20 by the carrying mechanism (carrying clamping jaw), the press-fit pieces 211 are pins, the lower surface of the battery cell 40 is contacted with the surfaces of the plurality of pins (in order to avoid damage to the surface layer membrane of the battery cell 40, a protection sheet can be added on the upper surface and the lower surface of the battery cell 40), at this time, the driving mechanism 13 of the main press-fit device 20 drives the first press plate 11 in the main press-fit device 20 to move downwards, when the pins in the first press plate 11 in the main press-fit device 20 contact the upper surface of the battery cell 40 and have a certain pressure constraint on the battery cell 40, the carrying clamping jaw is removed, the first press plate 11 in the main press-fit device 20 continues to move downwards until the pins are completely compressed, the surfaces of the first press plate 11 in the main press-fit device 20 and the surfaces of the second press plate 12 are attached to the upper surface and the lower surface (the upper surface and the lower surface of the protection sheet) of the battery cell 40, and the pressure on the battery cell 40 is controlled by the controller on the middle driving mechanism 13.
Further, after the first pressing plate 11 and the second pressing plate 12 in the main pressing device 20 complete the lamination of the battery cell 40, the side pressing devices 30 at two ends of the battery cell 40 drive the first pressing plate 11 and the second pressing plate 12 of the side pressing devices 30 to move close to the center line of the battery cell 40, the elastic compensators 39 of the first pressing plate 11 and the second pressing plate 12 at two ends completely press the surface of the battery cell 40, the metal pressing heads 50 at two ends of the side pressing devices 30 can effectively contact the positive and negative lugs 51 at two ends of the battery cell 40, the pressure at two ends is determined by the controller on the driving mechanism 13 of the side pressing devices 30 at two ends, the short circuit tester is connected to the metal pressing heads 50 at two ends of the side pressing devices 30, then the short circuit tester is electrified to detect the battery cell 40, after the test is completed, the first pressing plate 11 and the second pressing plate 12 of the main pressing device 20 and the first pressing plate 11 and the second pressing plate 12 of the side pressing devices 30 at two ends of the battery cell 40 move in the direction away from the battery cell 40, and the carrying mechanism (carrying) takes out the battery cell 40, and the test is completed.
In the description of the utility model, a "first feature" or "second feature" may include one or more of such features. In the description of the present utility model, "plurality" means two or more. In the description of the utility model, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween. In the description of the utility model, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (12)
1. A cell short circuit detection apparatus, comprising: the laminating device is arranged at intervals and is used for laminating different parts of the battery core, and each laminating device comprises: the battery cell comprises a first pressing plate, a second pressing plate and a driving mechanism, wherein the first pressing plate and the second pressing plate are oppositely arranged, and the driving mechanism is used for driving the first pressing plate and the second pressing plate to move relatively so as to press the battery cell.
2. The cell short circuit detection device of claim 1, wherein the cell comprises: a main body portion and a thinned portion provided at both ends of the main body portion;
the plurality of pressing devices at least comprise: the device comprises a main pressing device and side pressing devices, wherein the side pressing devices are located on two sides of the main pressing device, the main pressing device is used for pressing the main body portion, the side pressing devices are used for pressing the thinning portion, and pressure heads are arranged on the first pressure plate and the second pressure plate in the side pressing devices.
3. The cell short-circuit detection apparatus according to claim 2, wherein in the side pressing device, the first pressing plate and the second pressing plate are both in transmission connection with the driving mechanism, so that the first pressing plate and the second pressing plate move in opposite directions or in opposite directions in synchronization.
4. The cell short circuit detection apparatus according to claim 3, wherein the side crimping device further comprises: the linkage mechanism is arranged on the first pressing plate, and the linkage mechanism is arranged between the first pressing plate and the second pressing plate so as to enable the first pressing plate and the second pressing plate to synchronously move in opposite directions or back to each other.
5. The cell short circuit detection apparatus according to claim 4, wherein the side crimping device further comprises: the first pressing plate and the second pressing plate are movably arranged on the substrate;
the linkage mechanism comprises: the first transmission piece, second transmission piece and third transmission piece, first transmission piece set up in first clamp plate, the second transmission piece set up in the second clamp plate, the third transmission piece set up on the base plate and still set up in first transmission piece with between the second transmission piece.
6. The cell short circuit detection device according to claim 5, wherein the first transmission member is a first rack, the second transmission member is a second rack, the third transmission member is a gear, the first rack and the second rack are disposed opposite to each other, and the gear is meshed between the first rack and the second rack.
7. The cell short circuit detection apparatus according to claim 5, wherein the side crimping device further comprises: the device comprises a first mounting plate, a second mounting plate and a pressure sensor, wherein the first pressing plate, the driving mechanism, the first transmission piece and the pressure sensor are arranged on the first mounting plate, and the second pressing plate is arranged on the second mounting plate.
8. The cell short circuit detection apparatus according to claim 4, wherein the number of the linkage mechanisms is two, and the two linkage mechanisms are respectively disposed between both ends of the first pressing plate and both ends of the second pressing plate.
9. The cell short-circuit detection apparatus according to claim 2, wherein the side crimping device further comprises: and the elastic compensation piece is arranged on at least one of the first pressing plate and the second pressing plate.
10. The cell short circuit detection device of claim 9, wherein the elastic compensation member is a thermally conductive silicone.
11. The cell short circuit detection apparatus according to claim 2, wherein at least one mounting groove in the first platen and the second platen, the main pressing device further comprises: the elastic pressing mechanism is arranged in the mounting groove.
12. The cell short circuit detection apparatus according to claim 11, wherein the elastic pressing mechanism comprises:
the elastic piece is arranged in the mounting groove;
the pressing piece is arranged on the elastic piece, and the end part of the pressing piece protrudes out of the mounting groove to be used for being in contact with the battery cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321124894.6U CN220019661U (en) | 2023-05-11 | 2023-05-11 | Battery cell short circuit detection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321124894.6U CN220019661U (en) | 2023-05-11 | 2023-05-11 | Battery cell short circuit detection equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220019661U true CN220019661U (en) | 2023-11-14 |
Family
ID=88692976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321124894.6U Active CN220019661U (en) | 2023-05-11 | 2023-05-11 | Battery cell short circuit detection equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220019661U (en) |
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2023
- 2023-05-11 CN CN202321124894.6U patent/CN220019661U/en active Active
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