CN110703132A - Lithium battery roll core flat-pressing short circuit testing equipment - Google Patents
Lithium battery roll core flat-pressing short circuit testing equipment Download PDFInfo
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- CN110703132A CN110703132A CN201910962852.1A CN201910962852A CN110703132A CN 110703132 A CN110703132 A CN 110703132A CN 201910962852 A CN201910962852 A CN 201910962852A CN 110703132 A CN110703132 A CN 110703132A
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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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
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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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
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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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- 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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Abstract
The invention discloses a lithium battery roll core flat-pressing short circuit testing device which comprises a fixing frame, a flat-pressing device and a testing device, wherein a flat-pressing assembly comprises a flat-pressing fixing plate, a lifting driver and a flat-pressing plate body, the flat-pressing fixing plate is arranged on the fixing frame, the lifting driver is arranged on the flat-pressing fixing plate, the flat-pressing plate body is arranged at the output end of the lifting driver, and the lifting driver is used for driving the flat-pressing fixing plate to do lifting movement along the vertical direction; the test assembly comprises a fixed strip, an anode test piece and a cathode test piece, the fixed strip is arranged on the flat pressing plate body, and the anode test piece and the cathode test piece are respectively arranged on the fixed strip. By arranging the flat pressing device and the testing device, the leveling operation of the lithium battery roll core can be conveniently carried out, the smoothness of the lithium battery roll core is improved, the test of the lithium battery tab can be realized, and the condition that the test of the lithium battery roll core is missed is prevented.
Description
Technical Field
The invention relates to the field of lithium battery production, in particular to a flat-pressing short circuit testing device for a lithium battery roll core.
Background
Lithium batteries generally fall into two broad categories: lithium metal batteries: in general, a lithium metal battery uses manganese dioxide as a positive electrode material, lithium metal or an alloy metal thereof as a negative electrode material, and a nonaqueous electrolyte solution. A lithium ion battery: in general, a lithium ion battery uses a lithium alloy metal oxide as a positive electrode material, graphite as a negative electrode material, and a nonaqueous electrolyte. Although the energy density of the lithium metal battery is high, theoretically, 3860 watts/kg can be reached. However, they are not stable enough and cannot be charged, and therefore, they cannot be used repeatedly as power batteries. Lithium ion batteries have been developed as the main power batteries because of their ability to be recharged repeatedly. However, because different elements are matched, the performance of the formed anode material is greatly different in all aspects, and disputes in the industry on anode material routes are increased. Generally speaking, the most popular power batteries are lithium iron phosphate batteries, lithium manganate batteries, lithium cobaltate batteries and ternary lithium batteries (ternary nickel cobalt manganese).
However, current lithium cell rolls up core in the production process, need carry out concora crush and short circuit test to lithium cell roll core, but not can carry out concora crush and short circuit test to lithium cell roll core simultaneously in the current equipment, consequently, how to design one kind can enough realize carrying out the concora crush to lithium cell roll core, guarantees the device of the roughness of lithium cell roll core, can carry out the device of short circuit test to the utmost point ear of lithium cell roll core again and is the problem that technical staff in the field need consider.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the flat-pressing short-circuit testing equipment for the lithium battery winding core, which not only can be used for conveniently leveling the lithium battery winding core and improving the smoothness of the lithium battery winding core, but also can be used for testing the pole lugs of the lithium battery and preventing the lithium battery winding core from being tested in a leakage manner.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a lithium cell rolls up flat voltage short circuit test equipment, includes:
a fixed frame is arranged on the upper portion of the frame,
the flat pressing device comprises a plurality of flat pressing assemblies, each flat pressing assembly is arranged on the fixing frame, in one flat pressing assembly, each flat pressing assembly comprises a flat pressing fixing plate, a lifting driver and a flat pressing plate body, the flat pressing fixing plate is arranged on the fixing frame, the lifting driver is arranged on the flat pressing fixing plate, the flat pressing plate body is arranged at the output end of the lifting driver, and the lifting driver is used for driving the flat pressing fixing plate to do lifting movement along the vertical direction; and
testing arrangement, testing arrangement includes a plurality of test component, each the test component one-to-one set up in one on the concora crush plate body, in the test component, the test component is including fixed rectangular, anodal test piece and negative pole test piece, fixed rectangular set up in on the concora crush plate body, anodal test piece with the negative pole test piece set up respectively in fixed rectangular is last.
In one embodiment, the lithium battery roll core flat-pressing short circuit testing equipment further comprises a sliding device, wherein the sliding device comprises a positioning jig, a first sliding rail and a second sliding rail, the first sliding rail and the second sliding rail are respectively arranged on the fixing frame, a first sliding groove and a second sliding groove are formed in the positioning jig, the first sliding rail is embedded in the first sliding groove, and the second sliding rail is embedded in the second sliding groove.
In one embodiment, the positioning fixture is provided with a plurality of winding core fixing grooves, and each winding core fixing groove is correspondingly located right below the flat pressing plate body.
In one embodiment, the sliding device further comprises a pulling handle, and the pulling handle is arranged on the positioning jig.
In one embodiment, the fixing frame includes a base plate, a first bracket and a second bracket, the first bracket and the second bracket are respectively disposed on the base plate, and two ends of the flat pressing fixing plate are respectively disposed on the first bracket and the second bracket.
In one embodiment, the fixing frame further includes a limiting plate disposed on the base plate, one end of the limiting plate is connected to the first slide rail, and the other end of the limiting plate is connected to the second slide rail.
In one embodiment, the limiting plate is provided with a limiting groove, and the limiting groove is used for limiting the pulling handle.
In one embodiment, the lifting driver comprises a lifting cylinder, an expansion link and a lower pressing plate, the lifting cylinder is arranged on the flat pressing fixing plate, one end of the expansion link is arranged at the output end of the lifting cylinder, the other end of the expansion link is arranged on the lower pressing plate, and the flat pressing plate is arranged on the lower pressing plate.
In one embodiment, the lifting driver further comprises a cylinder frame and a plurality of guide rods, the cylinder frame is arranged on the platen, the lifting cylinder is arranged on the cylinder frame, one end of each guide rod is arranged on the lower platen, and the other end of each guide rod is arranged on the platen.
In one embodiment, four guide rods are arranged, and the four guide rods are respectively arranged between the lower pressing plate and the flat pressing fixing plate.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the invention relates to a flat-pressing short circuit testing device for a lithium battery winding core.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a lithium battery roll core flat-pressing short circuit testing device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a flat pressing device of the flat pressing short circuit testing equipment for the lithium battery winding core shown in FIG. 1;
FIG. 3 is a schematic structural diagram of a testing device of the lithium battery winding core flat-pressing short circuit testing equipment shown in FIG. 1;
FIG. 4 is a schematic structural view of a jacking leveling device of the lithium battery roll core flat-pressing short circuit testing equipment shown in FIG. 1;
fig. 5 is a schematic structural diagram of an elastic buffer device of the lithium battery roll core flat-pressing short circuit testing equipment shown in fig. 1;
FIG. 6 is a schematic view of the top-supporting leveling device shown in FIG. 4 from another view angle;
fig. 7 is a schematic structural diagram of a lithium battery winding core flat-pressing short circuit testing device according to another embodiment of the invention.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, a flat-pressing short circuit testing apparatus for a lithium battery winding core includes: the testing device comprises a fixing frame 100, a flat pressing device 200 and a testing device 300, wherein the fixing frame 100 is used for fixing the flat pressing device 200 and the testing device 300; the flat pressing device 200 is used for performing flat pressing and leveling operation on the lithium battery roll core; the testing device 300 is used for testing whether the short circuit of the pole lug of the lithium battery occurs or not, and the condition that the leakage test of the lithium battery roll core occurs is prevented.
Referring to fig. 2 and 3, the flat pressing device 200 includes a plurality of flat pressing assemblies, each of which is respectively disposed on the fixing frame, and in one of the flat pressing assemblies, the flat pressing assembly includes a flat pressing fixing plate 210, a lifting driver 220 and a flat pressing plate 230, the flat pressing fixing plate is disposed on the fixing frame, the lifting driver is disposed on the flat pressing fixing plate, the flat pressing plate is disposed at an output end of the lifting driver, and the lifting driver is configured to drive the flat pressing fixing plate to move up and down in a vertical direction. It should be noted that the flat pressing fixing plate 210 is used for fixing a flat pressing assembly, and the lifting driver 220 is used for realizing a lifting operation; the flat pressing plate body 230 is used for leveling the lithium battery roll core.
Referring to fig. 3, the testing apparatus 300 includes a plurality of testing assemblies, each of the testing assemblies is disposed on a flat pressing plate in a one-to-one correspondence, in one of the testing assemblies, the testing assembly includes a fixed strip 310, an anode testing plate 320 and a cathode testing plate 330, the fixed strip is disposed on the flat pressing plate, and the anode testing plate and the cathode testing plate are disposed on the fixed strip, respectively. The fixing strip 310 is used for fixing the positive electrode test piece 320 and the negative electrode test piece 330; the positive pole test piece 320 with the anodal utmost point ear and the negative pole utmost point ear of lithium cell are connected to negative pole test piece 330 electricity respectively, realize the electricity to the lithium cell and connect, and then whether the condition of short circuit appears in the utmost point ear of test lithium cell, can also prevent that the lithium cell from rolling up the core and appearing leaking the circumstances of surveying, if the short circuit condition appears, immediately mark is "problem lithium cell", then carries out subsequent detection and the problem of going the short circuit by operating personnel again. Preferably, the positive test strip 320 and the negative test strip 330 are metal conductive strips.
So, through setting up concora crush device and testing arrangement, both can conveniently roll up the core to the lithium cell and carry out the flattening operation, improve the planarization that the core was rolled up to the lithium cell, can realize the test to lithium cell utmost point ear again, prevent that the lithium cell from rolling up the core and appearing leaking the circumstances of surveying.
Referring to fig. 1, the flat-pressing short-circuit testing apparatus for a lithium battery roll core further includes a sliding device 400, where the sliding device 400 includes a positioning fixture 410, a first slide rail 420 and a second slide rail 430, the first slide rail and the second slide rail are respectively disposed on the fixing frame, the positioning fixture is provided with a first sliding groove and a second sliding groove, the first slide rail is embedded in the first sliding groove, and the second slide rail is embedded in the second sliding groove. It should be noted that the sliding device 400 is used for positioning the lithium battery winding core and moving the lithium battery winding core; the positioning jig 410 is used for positioning the lithium battery roll core; the first slide rail 420 and the second slide rail 430 are used for sliding the positioning jig, and then the movement of the lithium battery roll core is realized. So, through setting up the slip tool, can be after pulling positioning jig, conveniently put into positioning jig with the lithium cell roll core, also conveniently take out the lithium cell roll core.
Referring to fig. 1, the positioning fixture 410 is provided with a plurality of winding core fixing slots 411, and each winding core fixing slot is located right below the flat pressing plate body. So, through setting up a roll core fixed slot 411, can place the lithium cell and roll up the core to set up a plurality of roll core fixed slots 411, can test simultaneously and a plurality of lithium cell rolls up the core with the concora crush.
Referring to fig. 1, the sliding device further includes a pulling handle 440 disposed on the positioning fixture. So, through setting up pulling handle 440, conveniently pull positioning jig.
Referring to fig. 1, the fixing frame 100 includes a substrate 110, a first bracket 120 and a second bracket 130, the first bracket and the second bracket are respectively disposed on the substrate, and two ends of the flat pressing fixing plate are respectively disposed on the first bracket and the second bracket. Thus, the substrate 110, the first support 120 and the second support 130 are disposed, so that the stability and reliability of the overall structure can be improved.
Referring to fig. 1, the fixing frame further includes a limiting plate 140 disposed on the base plate, one end of the limiting plate is connected to the first slide rail, and the other end of the limiting plate is connected to the second slide rail. Thus, the positioning jig is prevented from sliding out of the slide rail by the limiting plate 140.
It should be noted that a limiting groove is formed in the limiting plate, and the limiting groove is used for limiting the pulling handle. In this way, the pulling handle can be placed.
Referring to fig. 2, the lifting driver 220 includes a lifting cylinder 221, an expansion link 222 and a lower pressing plate 223, the lifting cylinder is disposed on the flat pressing fixing plate, one end of the expansion link is disposed at an output end of the lifting cylinder, the other end of the expansion link is disposed on the lower pressing plate, and the flat pressing plate is disposed on the lower pressing plate. So, through setting up lift cylinder, telescopic link and holding down plate, can realize the lifting movement operation.
Referring to fig. 2 and 3, the lifting driver 220 further includes a cylinder frame 224 and a plurality of guide rods 225, the cylinder frame is disposed on the platen fixing plate, the lifting cylinder is disposed on the cylinder frame, one end of each guide rod is disposed on the lower platen, and the other end of each guide rod is disposed on the platen fixing plate. So, through setting up cylinder frame and a plurality of guide bar, conveniently fix the lift cylinder and realize the lift removal.
It should be noted that four guide rods are arranged, and the four guide rods are respectively arranged between the lower pressing plate and the flat pressing fixing plate. So, through setting up four the stability of guide bar can further improve the removal.
It can be understood that in the production process of the lithium battery, the lithium battery roll core needs to be leveled and subjected to short circuit test. The thickness of the existing lithium battery winding core is different, and the lithium battery fixing groove of the leveling device is fixed, so that different lithium battery winding cores cannot be adjusted, the adaptability is low, and the leveling operation on different lithium battery winding cores is inconvenient; in a similar way, different thicknesses can also appear in the utmost point ear on the lithium battery roll core of different thickness, at the in-process of testing the utmost point ear of lithium battery, can lead to appearing the condition of contact failure to lead to testing the inaccurate condition, perhaps appear the condition that the lithium battery roll core leaked to be surveyed. Therefore, in order to level the lithium battery winding cores with different thicknesses, the leveling device is adaptive to the lithium battery winding cores with different thicknesses, and the lithium battery winding cores with different thicknesses are conveniently leveled; simultaneously, in order to guarantee the good contact nature of utmost point ear in the test procedure of lithium cell, avoid appearing the condition of contact failure to improve the test to the lithium cell book core, guarantee that the condition of lithium cell book core hourglass survey can not appear. For example, in an embodiment, the flat-pressing short-circuit testing apparatus for a lithium battery winding core further includes a propping and adjusting level device and an elastic buffer device, the propping and adjusting level device is disposed on the fixing frame, the propping and adjusting level device is located right below the winding core fixing groove 411, the elastic buffer device is disposed on the flat-pressing device, and the elastic buffer device is used for propping up a pole piece of the lithium battery winding core; the jacking and leveling device comprises a jacking frame, a lifting adjusting assembly, a horizontal testing assembly and a jacking plate, wherein the jacking frame is arranged on the fixed frame, the lifting adjusting assembly is arranged on the jacking frame in a sliding manner, the horizontal testing assembly is arranged on the lifting adjusting assembly, the horizontal testing assembly and the lifting adjusting assembly jointly form a horizontal fixed table, and the jacking plate is arranged on the horizontal fixed table; the top support frame comprises a first support plate, a second support plate, a first sliding plate and a second sliding plate, the first support plate and the second support plate are respectively arranged on the fixed frame, the first sliding plate is arranged on the first support plate, a first sliding groove is formed in the first sliding plate, the second sliding plate is arranged on the second support plate, and a second sliding groove is formed in the second sliding plate; the first support plate is provided with a first empty avoiding groove, and the second support plate is provided with a second empty avoiding groove; the lifting adjusting assembly comprises a first L-shaped adjusting block, a second L-shaped adjusting block, a first limiting rod and a second limiting rod, one end of the first limiting rod is arranged on the first L-shaped adjusting block, the other end of the first limiting rod is embedded in the first sliding groove in a sliding mode, one end of the second limiting rod is arranged on the second L-shaped adjusting block, the other end of the second limiting rod is embedded in the second sliding groove in a sliding mode, and the first L-shaped adjusting block and the second L-shaped adjusting block are arranged in an inverted mode; the horizontal testing assembly comprises a transparent pipe body, a horizontal ball, a first fixing shaft sleeve and a second fixing shaft sleeve, the first fixing shaft sleeve and the second fixing shaft sleeve are respectively arranged at two ends of the transparent pipe body, the first fixing shaft sleeve is further arranged on the first L-shaped adjusting block, the second fixing shaft sleeve is further arranged on the second L-shaped adjusting block, the transparent pipe body is of a hollow structure, the horizontal ball is arranged in the hollow structure in a rolling mode, the upper surface of the transparent pipe body, the upper surface of the first L-shaped adjusting block and the upper surface of the second L-shaped adjusting block jointly form a horizontal fixing table, and the jacking plate is arranged on the horizontal fixing table; elasticity buffer memory device includes spring, elastic block, first guide board and second guide board, the mounting groove has been seted up on the concora crush fixed plate, first guide board set up in on the side of mounting groove, the second guide board set up in the mounting groove with on the relative side of first guide board, the stiff end of spring set up in on the bottom of mounting groove, the elasticity end of spring set up in on the elastic block, and the both sides limit of elastic block respectively with first guide board with the second guide board slides and sets up, the elastic block is kept away from the one side of the elasticity end of spring is used for the utmost point ear that the top held the lithium cell. Therefore, the leveling device can be used for leveling lithium battery winding cores with different thicknesses by arranging the jacking and supporting leveling device and the elastic caching device, so that the leveling device is adaptive to the lithium battery winding cores with different thicknesses, and the leveling operation of the lithium battery winding cores with different thicknesses is facilitated; meanwhile, the good contact of the pole lug of the lithium battery in the test process can be ensured, and the condition of poor contact is avoided, so that the test of the lithium battery roll core is improved, and the condition of missing test of the lithium battery roll core is ensured not to occur.
In order to further understand the design principle of the propping leveling device and the elastic buffer device, the propping leveling device and the elastic buffer device will be described in detail below. Referring to fig. 4 and 5, the flat-pressing short-circuit testing apparatus for a lithium battery winding core further includes a propping and adjusting level device 500 and an elastic buffer device 600, the propping and adjusting level device is disposed on the fixing frame, the propping and adjusting level device is located right below the winding core fixing groove 411, the elastic buffer device is disposed on the flat-pressing device, and the elastic buffer device is used for propping up a pole piece of the lithium battery winding core upward.
It should be noted that the jacking and leveling device 500 is used for realizing the lifting adjustment of the lithium battery winding core, so that the lithium battery winding core is stably placed in the winding core fixing groove of the positioning jig; elasticity buffer memory device 600 is used for the test of buffer memory lithium battery pole piece, can be so that the good contact nature of utmost point ear in the test procedure of lithium cell avoids appearing contact failure's the condition.
Referring to fig. 4, the jacking adjustment leveling device 500 includes a jacking frame 510, a lifting adjustment assembly 520, a leveling assembly 530 and a jacking plate 540, the jacking frame is disposed on the fixing frame, the lifting adjustment assembly is slidably disposed on the jacking frame, the leveling assembly is disposed on the lifting adjustment assembly, the leveling assembly and the lifting adjustment assembly together form a leveling platform, and the jacking plate is disposed on the leveling platform.
It should be noted that the top holder 510 is used for fixing the lifting adjustment assembly 520, the horizontal testing assembly 530 and the top holding plate 540; the lifting adjusting component 520 is used for adjusting the height of the jacking plate 540, so as to adjust the leveling height of the lithium battery roll core; the horizontal testing component 530 is used for ensuring that the lifting adjusting component is in a horizontal position, namely ensuring that the lifting adjusting component is placed on the top holding plate in a horizontal position, so that the lithium battery winding core placed on the top holding plate cannot have height deviation, and finally, the lithium battery winding core can have high flatness during leveling, and the leveling effect of the lithium battery winding core is improved; the jacking plate 540 is used for placing a lithium battery roll core so as to realize the leveling of the lithium battery roll core.
Further, the supporting plate 540 is disposed in the winding core fixing groove 411, and the lifting adjustment is achieved in the winding core fixing groove 411, and the lifting adjustment assembly 520 is also disposed in the winding core fixing groove, so that the supporting plate can achieve lifting height adjustment. The horizontal testing component 530 is arranged between the lifting and adjusting components, the lifting and adjusting component 520 and the horizontal fixing table formed by the horizontal testing component 530 can be used for placing the jacking plate, meanwhile, the horizontal testing component 530 can also test the horizontal position of the jacking plate through testing whether the lifting and adjusting component 520 is in the horizontal position, and further the leveling effect of the lithium battery winding core is finally improved.
Referring to fig. 4, the supporting frame 510 includes a first supporting plate 511, a second supporting plate 512, a first sliding plate 513 and a second sliding plate 514, the first supporting plate and the second supporting plate are respectively disposed on the fixing frame, the first sliding plate is disposed on the first supporting plate, the first sliding plate is provided with a first sliding groove, the second sliding plate is disposed on the second supporting plate, and the second sliding plate is provided with a second sliding groove.
It should be noted that the first supporting plate 511 and the second supporting plate 512 are used for fixing; the first sliding plate 513 and the second sliding plate 514 are used to facilitate the up-and-down sliding of the up-and-down adjusting assembly 520. The first sliding groove and the second sliding groove are used for achieving sliding of the lifting adjusting assembly and can also achieve limiting during sliding.
It should be further noted that the first supporting plate 511 is provided with a first clearance groove 511a, and the second supporting plate 512 is provided with a second clearance groove 512 a. In order to conveniently adjust and lock the height of the lifting adjusting assembly 520, the height of the lifting adjusting assembly 520 can be adjusted by arranging the first clearance groove 511a and the second clearance groove 512a, and a dead zone cannot be adjusted.
Referring to fig. 4 and 6, the lifting adjustment assembly 520 includes a first L-shaped adjustment block 521, a second L-shaped adjustment block 522, a first limiting rod 523 and a second limiting rod 524, wherein one end of the first limiting rod is disposed on the first L-shaped adjustment block, the other end of the first limiting rod is slidably embedded in the first sliding groove, one end of the second limiting rod is disposed on the second L-shaped adjustment block, the other end of the second limiting rod is slidably embedded in the second sliding groove, and the first L-shaped adjustment block and the second L-shaped adjustment block are disposed in an inverted manner.
It should be noted that the first L-shaped adjusting block 521 and the second L-shaped adjusting block 522 are arranged on the first support plate and the second support plate in an inverted manner, and the first limiting rod 523 is arranged to be embedded in the first sliding groove and the second limiting rod 524 is arranged to be embedded in the second sliding groove, so that the first L-shaped adjusting block 521 can slide in the first sliding groove and can be locked by the first limiting rod 523, and similarly, the second L-shaped adjusting block 522 can slide in the second sliding groove and can be locked by the second limiting rod 524. When the lifting adjustment is performed, the height of the first L-shaped adjusting block 521 is adjusted, and after the locking in the first sliding groove, the height of the second L-shaped adjusting block 522 is adjusted, and the locking in the second sliding groove is performed. During the adjustment process, it is necessary to see whether the horizontal testing component is in a horizontal state, and if so, the second L-shaped adjusting block 522 is locked in the second sliding groove.
Referring to fig. 4 and 6, the horizontal testing assembly 530 includes a transparent tube 531, a horizontal ball 532, a first fixed shaft sleeve 533 and a second fixed shaft sleeve 534, the first fixed shaft sleeve and the second fixed shaft sleeve are respectively disposed at two ends of the transparent tube, the first fixed shaft sleeve is further disposed on the first L-shaped adjusting block, the second fixed shaft sleeve is further disposed on the second L-shaped adjusting block, the transparent tube has a hollow structure, the horizontal ball is rotatably disposed in the hollow structure, an upper surface of the transparent tube, an upper surface of the first L-shaped adjusting block, and an upper surface of the second L-shaped adjusting block together form a horizontal fixed platform, and the top supporting plate is disposed on the horizontal fixed platform.
It should be noted that the transparent tube 531 is used to facilitate the horizontal test; the horizontal ball 532 is used for realizing horizontal testing; the first fixing sleeve 533 and the second fixing sleeve 534 are used together to fix the transparent tube 531.
So, hold adjustment levelling device through setting up the top, can roll up the core to the lithium cell of different thickness and carry out the flattening for the lithium cell that the different thickness of leveling device adaptation is big or small rolls up the core, and the convenience rolls up the core to the lithium cell of different thickness and carries out the flattening operation.
Referring to fig. 5, the elastic buffer device 600 includes a spring 610, an elastic block 620, a first guide plate 630 and a second guide plate 640, wherein a mounting groove 211 is formed in the flat compression fixing plate 210, the first guide plate is disposed on a side surface of the mounting groove, the second guide plate is disposed on a side surface of the mounting groove opposite to the first guide plate, a fixed end of the spring is disposed on a bottom of the mounting groove, an elastic end of the spring is disposed on the elastic block, two side edges of the elastic block are slidably disposed with the first guide plate and the second guide plate, and one surface of the elastic block, which is far away from the elastic end of the spring, is used for supporting a tab of a lithium battery.
It should be noted that the spring 610 is used for realizing elastic buffering; the elastic block 620 is used for supporting the tabs of the lithium battery, so that the tabs of the lithium battery can be in close contact with the short circuit testing device, good contact is ensured, and the testing reliability is improved; the first guiding plate 630 and the second guiding plate 640 are used together to realize the sliding of the elastic blocks. Further, the elastic block 620 is disposed under the tab of the lithium battery, so as to support the tab of the lithium battery, thereby improving the testing of the positive test piece 320 and the negative test piece 330 on the tab of the lithium battery.
Through setting up spring 610 and elastic block 620, can be at the in-process to the utmost point ear test of lithium cell, when the utmost point ear of lithium cell was placed on elastic block 620, then push down on positive negative pole ear through positive negative pole test piece again, then the spring can advance the shrink when that moment that it pushed down this moment, also be exactly the spring is pushed down, make to drive the elastic block and push down, then after positive negative pole test piece fixed position, because the spring has the effect of ascending elasticity power, so make the elastic block again upwards push up and hold the utmost point ear of lithium cell, make the utmost point ear of lithium cell closely laminate on positive negative pole test piece, thereby can guarantee the good contact nature of the utmost point ear of lithium cell in the testing process, avoid appearing the bad condition of contact, thereby improve the test to the lithium cell roll up core, guarantee can not appear the condition that the lithium cell.
It should be further noted that, referring to fig. 7, fig. 7 is a schematic structural diagram of a flat-pressing short-circuit testing apparatus for a lithium battery winding core according to another embodiment of the present invention, wherein the flat-pressing short-circuit testing apparatus for a lithium battery winding core according to the present invention is used together with a lithium battery winding core winder, so that automation is more complete, flat-pressing and short-circuit tests are more convenient, flatness of the lithium battery winding core is improved, and a missing test situation of the lithium battery winding core is prevented.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the invention relates to a flat-pressing short circuit testing device for a lithium battery winding core.
The above embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides a lithium cell rolls up flat voltage short circuit test equipment which characterized in that includes:
a fixed frame is arranged on the upper portion of the frame,
the flat pressing device comprises a plurality of flat pressing assemblies, each flat pressing assembly is arranged on the fixing frame, in one flat pressing assembly, each flat pressing assembly comprises a flat pressing fixing plate, a lifting driver and a flat pressing plate body, the flat pressing fixing plate is arranged on the fixing frame, the lifting driver is arranged on the flat pressing fixing plate, the flat pressing plate body is arranged at the output end of the lifting driver, and the lifting driver is used for driving the flat pressing fixing plate to do lifting movement along the vertical direction; and
testing arrangement, testing arrangement includes a plurality of test component, each the test component one-to-one set up in one on the concora crush plate body, in the test component, the test component is including fixed rectangular, anodal test piece and negative pole test piece, fixed rectangular set up in on the concora crush plate body, anodal test piece with the negative pole test piece set up respectively in fixed rectangular is last.
2. The lithium battery roll core flat-pressing short-circuit testing equipment as claimed in claim 1, characterized in that the lithium battery roll core flat-pressing short-circuit testing equipment further comprises a sliding device, the sliding device comprises a positioning jig, a first sliding rail and a second sliding rail, the first sliding rail and the second sliding rail are respectively arranged on the fixing frame, the positioning jig is provided with a first sliding groove and a second sliding groove, the first sliding rail is embedded in the first sliding groove, and the second sliding rail is embedded in the second sliding groove.
3. The lithium battery roll core flat pressing short circuit testing equipment according to claim 2, wherein a plurality of roll core fixing grooves are formed in the positioning jig, and each roll core fixing groove is correspondingly located under the flat pressing plate body.
4. The lithium battery roll core flat pressing short circuit testing equipment of claim 2, characterized in that the sliding device further comprises a pulling handle, and the pulling handle is arranged on the positioning jig.
5. The lithium battery winding core flat-pressing short circuit testing equipment according to claim 4, wherein the fixing frame comprises a base plate, a first support and a second support, the first support and the second support are respectively arranged on the base plate, and two ends of the flat-pressing fixing plate are respectively arranged on the first support and the second support.
6. The lithium battery roll core flat pressing short circuit testing equipment of claim 5, characterized in that, the mount further comprises a limiting plate, the limiting plate is arranged on the substrate, and one end of the limiting plate is connected with the first slide rail, and the other end of the limiting plate is connected with the second slide rail.
7. The lithium battery roll core flat pressing short circuit testing equipment of claim 6, characterized in that a limiting groove is formed in the limiting plate, and the limiting groove is used for limiting the pulling handle.
8. The lithium battery roll core flat pressing short circuit testing equipment according to claim 1, characterized in that the lifting driver comprises a lifting cylinder, a telescopic rod and a lower pressing plate, the lifting cylinder is arranged on the flat pressing fixing plate, one end of the telescopic rod is arranged at the output end of the lifting cylinder, the other end of the telescopic rod is arranged on the lower pressing plate, and the flat pressing plate is arranged on the lower pressing plate.
9. The lithium battery roll core platen short circuit test equipment of claim 8, wherein the lift driver further comprises a cylinder frame and a plurality of guide rods, the cylinder frame is arranged on the platen fixing plate, the lift cylinder is arranged on the cylinder frame, one end of each guide rod is arranged on the lower pressing plate, and the other end of each guide rod is arranged on the platen fixing plate.
10. The lithium battery roll core flat pressing short circuit testing device according to claim 9, wherein four guide rods are arranged, and the four guide rods are respectively arranged between the lower pressing plate and the flat pressing fixing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910962852.1A CN110703132A (en) | 2019-10-11 | 2019-10-11 | Lithium battery roll core flat-pressing short circuit testing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910962852.1A CN110703132A (en) | 2019-10-11 | 2019-10-11 | Lithium battery roll core flat-pressing short circuit testing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110703132A true CN110703132A (en) | 2020-01-17 |
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ID=69198458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910962852.1A Pending CN110703132A (en) | 2019-10-11 | 2019-10-11 | Lithium battery roll core flat-pressing short circuit testing equipment |
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| Country | Link |
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| CN (1) | CN110703132A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112786907A (en) * | 2020-12-30 | 2021-05-11 | 惠州市恒泰科技股份有限公司 | Integrated equipment and method for leveling and detecting battery core |
-
2019
- 2019-10-11 CN CN201910962852.1A patent/CN110703132A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112786907A (en) * | 2020-12-30 | 2021-05-11 | 惠州市恒泰科技股份有限公司 | Integrated equipment and method for leveling and detecting battery core |
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