CN217954668U

CN217954668U - Lithium battery OCV testing device

Info

Publication number: CN217954668U
Application number: CN202222126612.8U
Authority: CN
Inventors: 汪齐元; 王进; 代建强; 阳鹏志
Original assignee: Lang Jing Intelligent Automation Equipment Co ltd
Current assignee: Guangdong Langjing Intelligent Automation Equipment Co ltd
Priority date: 2022-08-12
Filing date: 2022-08-12
Publication date: 2022-12-02
Anticipated expiration: 2032-08-12

Abstract

The application discloses lithium cell OCV testing arrangement, including frame and the elevator motor who sets up at the frame top the bottom of frame is equipped with: the suction mechanism is connected with the lifting motor through the lifting platform, a plurality of sliding seats are arranged in the suction mechanism, and suckers for sucking the lithium batteries are arranged at the bottoms of the sliding seats; the testing mechanism is respectively arranged at the front end and the rear end of the suction mechanism, a plurality of U-shaped seats corresponding to the sliding seats are installed in the testing mechanism, a testing seat is fixed at the bottom of each U-shaped seat, and a plurality of electrode probes are arranged on the testing seat at intervals in a hexagonal shape. This application compares in traditional artifical test, can satisfy once only testing a plurality of lithium cells, very big promotion efficiency of software testing, whole mechanism is simple moreover, low in production cost can avoid simultaneously because the test that the contact of probe and electrode does not target in place and lead to is inaccurate.

Description

Lithium battery OCV testing device

Technical Field

The utility model relates to a detection device particularly relates to a lithium cell OCV testing arrangement.

Background

The OCV is Open circuit voltage = Open circuit voltage, and when the battery does not discharge Open circuit, the potential difference between the two poles, traditional lithium battery OCV still adopt the mode of artifical test in the past mostly, and this kind of mode inefficiency accuracy is poor, along with the rise of recent new forms of energy, needs the gradual increase to the lithium cell, to the enterprise of new forms of energy, the urgent need be a simple structure and test the high lithium battery OCV testing arrangement of accuracy.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure and high lithium cell OCV testing arrangement of test rate of accuracy.

In order to realize foretell purpose, lithium cell OCV testing arrangement, including frame and the elevator motor who sets up at the frame top the bottom of frame is equipped with: the suction mechanism is connected with the lifting motor through the lifting platform, a plurality of sliding seats are arranged in the suction mechanism, and suckers for sucking the lithium batteries are arranged at the bottoms of the sliding seats; the testing mechanism is respectively arranged at the front end and the rear end of the suction mechanism, a plurality of U-shaped seats corresponding to the sliding seats are installed in the testing mechanism, a testing seat is fixed at the bottom of each U-shaped seat, and a plurality of electrode probes are arranged on the testing seat at intervals in a hexagonal shape.

Furthermore, a first connecting frame is arranged in the suction mechanism, a first supporting rod is arranged on the first connecting frame, the sliding seats are arranged on the first supporting rod in series, and air outlet nozzles used for being connected with the vent pipes are arranged on the side portions of the sliding seats.

Furthermore, an air guide table is installed at the top of the first connecting frame, an air inlet nozzle is arranged on one side of the air guide table, and a plurality of air outlet nozzles connected with the air inlet nozzle are arranged on the other side of the air guide table.

Furthermore, the testing device is connected with the rack through a clamping device, a second connecting frame is arranged in the testing mechanism, the U-shaped seat is arranged on one side, close to the suction mechanism, of the second connecting frame, the U-shaped seat comprises a protruding end and a connecting end, and the protruding end of the U-shaped seat is inserted into the second connecting frame and is connected in series through a second supporting rod.

Further, clamping device includes two parallel arrangement's slide rail and connecting plate, the connecting plate sets up between the slide rail, second link detachable installs on the connecting plate, be equipped with Z type movable rod between the slide rail, the rotatable installation in the frame of the stiff end of Z type movable rod, the expansion end of Z type movable rod links to each other with the connecting plate respectively, is equipped with flexible motor in one side of connecting plate.

Furthermore, a first threaded hole is formed in the connecting end of the U-shaped seat, the second connecting frame is provided with a first through groove, the second connecting frame is embedded into the inner concave portion of the U-shaped seat, and the first adjusting screw penetrates through the first through groove and is inserted into the first threaded hole.

Furthermore, second through grooves are formed in two sides of the second connecting frame, connecting columns are installed in the connecting plates, and the second adjusting screw penetrates through the second through grooves to be fixed on the connecting columns.

Furthermore, the electrode probe is externally wrapped by an insulating layer.

Compared with the prior art, the beneficial effects of the utility model are that:

compared with the traditional manual test, the lithium battery OCV testing device can test a plurality of lithium batteries at one time, greatly improves the testing efficiency, is simple in whole mechanism and low in production cost, and can avoid inaccurate test caused by the fact that the contact of the probe and the electrode is not in place.

Additional aspects and advantages of the invention 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 invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

FIG. 1 is a schematic overall structure diagram of an OCV testing device for lithium batteries according to the present application;

FIG. 2 is a schematic structural diagram of an absorbing mechanism of the lithium battery OCV testing device according to the present application;

FIG. 3 is a schematic structural diagram of a testing mechanism of the lithium battery OCV testing device according to the present application;

fig. 4 is a schematic view of another angle structure of the testing mechanism of the OCV testing device for lithium batteries according to the present application;

FIG. 5 is a schematic structural diagram of a test socket and an electrode probe of the OCV testing device for lithium batteries according to the present application;

fig. 6 is a schematic structural view of a clamping device of the OCV testing device for lithium batteries according to the present application;

fig. 7 is a schematic structural diagram of a test structure and a connection plate of the OCV testing device for a lithium battery according to the present application.

The reference numbers and designations in the drawings are as follows:

the device comprises a machine frame 100, a lifting motor 110, a suction mechanism 200, a lifting platform 120, a sliding seat 210, a suction cup 220, a testing mechanism 300, a U-shaped seat 310, a testing seat 320, an electrode probe 321, a first connecting frame 230, a first supporting rod 240, an air outlet nozzle 211, an air guide table 250, an air inlet nozzle 251, a clamping device 400, a second connecting frame 330, a protruding end 311, a connecting end 312, a second supporting rod 340, a sliding rail 410, a connecting plate 420, a Z-shaped movable rod 430, a fixed end 431, a movable end 432, a telescopic motor 440, a first threaded hole 313, a first through groove 331, a first adjusting screw 350, a second through groove 332, a connecting column 421, a second adjusting screw 360 and an insulating layer 322.

Detailed Description

The technical solutions in the embodiments of the present invention will be described below clearly and completely, and it should be apparent that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

As shown in fig. 1 to 7, the present embodiment provides an OCV testing apparatus for lithium batteries, which includes a rack 100, a lifting motor 110 mounted on the top of the rack 100, an absorption mechanism 200 for absorbing lithium batteries to be tested, and a testing mechanism 300 for testing OCV of two ends of lithium batteries to be tested.

The suction mechanism 200 is installed at the bottom of the rack 100, and is connected to the lift motor 110 through the lift platform 120, the lift motor 110 can drive the suction mechanism 200 to move up and down through the lift platform 120, the suction mechanism 200 includes a first connecting frame 230, a first supporting rod 240 is horizontally disposed on the first connecting frame 230, a plurality of hollow sliding bases 210 are installed in series on the first supporting rod 240, the sliding bases 210 can slide along the axial direction of the first supporting rod 240, suction cups 220 for sucking lithium batteries are disposed at the bottom of the sliding bases 210, preferably, the number of the suction cups 220 can be two, air outlet nozzles 211 are disposed at the side of the sliding bases 210, one end of each air outlet nozzle 211 is communicated with the suction cups 220 through the sliding base 210, the other end of each air outlet nozzle 211 is connected to an external suction cylinder (not shown in the drawing) through a first connecting frame (not shown in the drawing), when suction is needed, the suction mechanism adjusts the distance between the hollow sliding bases 210 to be tested according to the distance of the lithium batteries to be tested, then the lift motor 110 drives the first connecting frame 230 to move down, when the lithium batteries to fall to a suitable distance, the suction cylinders 220 contacts with the suction cups 220, and the lithium batteries to be tested are started, and then the lithium batteries are lifted by the suction motor 300, and are started to wait for testing.

Testing mechanism 300 passes through clamping device 400 and installs in the bottom of frame 100, testing mechanism 300's quantity is two, and relative setting is in the front and back end of suction means 200 for when the lithium cell that awaits measuring rises to highly the same with testing mechanism 300, carry out the OCV test to the electrode at both ends around the lithium cell that awaits measuring.

The testing mechanism 300 comprises a second connecting frame 330 and a plurality of U-shaped seats 310, wherein the U-shaped seats 310 are arranged on one side of the second connecting frame 330 close to the suction device, the protruding end 311 of the U-shaped seats 310 is inserted into the second connecting frame 330 and is connected in series through a second supporting rod 340, therefore, the U-shaped seats 310 can slide along the axial direction of the second supporting rod 340, the bottom of the U-shaped seats 310 is fixed with a testing seat 320, in combination with fig. 5, a plurality of electrode probes 321 for testing the OCV are arranged on the testing seat 320, preferably, the electrode probes 321 are distributed in a hexagon shape, particularly, the number of the electrode probes 321 can be 19, and are distributed in 5 lines with equal distance, the number of the electrode probes 321 on the 1 st row to the 5 th row is 3, 4, 5, 4, 3, respectively, and the distance between each probe is the same, so the electrode probes 321 are distributed in a hexagon, it should be noted that the above embodiment is one of the embodiments of the present application, and other numbers of the electrode probes 321 are still within the general range of the embodiment as long as the electrode probes 321 are distributed in a hexagon, and the distribution mode can sufficiently cover the electrodes of the lithium battery to be tested, which can effectively prevent the problem of inaccurate test caused by incomplete coverage of the electrodes of the lithium battery by the electrode probes 321 due to the height error between the absorption mechanism 200 and the testing mechanism 300, and improve the accuracy of the OCV test

Clamping device 400 includes two parallel arrangement's slide rail 410 and connecting plate 420, connecting plate 420 sets up between slide rail 410, and can slide at slide rail 410, second link 330 detachable installs on connecting plate 420, and consequently second link 330 also can slide along slide rail 410, be equipped with Z type movable rod 430 between slide rail 410, the rotatable installation in frame 100 of the stiff end 431 of Z type movable rod 430, the loose end 432 of Z type movable rod 430 links to each other with connecting plate 420 respectively, is equipped with flexible motor 440 in one side of connecting plate 420. When the telescopic motor 440 is activated, the telescopic motor 440 pushes the connecting plate 420 to move the second connecting frame 330 in a direction away from the telescopic motor 440, and the fixed end 431 of the Z-shaped movable rod 430 rotates to compress the distance between the two movable ends 432 of the Z-shaped movable rod 430, so as to draw the distance between the second connecting frames 330 inward.

When the test is needed, the U-shaped seat 310 is adjusted along the second support rod 340 to correspond to the sliding seat 210, and then the telescopic motor 440 is started to drive the second connecting frame 330 to move inward to bring the electrode probe 321 into contact with the electrode of the lithium battery to be tested, thereby completing the OCV test.

It can be seen from above-mentioned embodiment that lithium cell OCV testing arrangement of this application compares in traditional manual test, can satisfy once only to test a plurality of lithium cells, very big promotion efficiency of software testing, whole mechanism is simple moreover, low in production cost, can avoid simultaneously because the contact of probe and electrode is not in place and the test that leads to is inaccurate.

Further, based on the above embodiment, an air guide table 250 may be further installed on the top of the first connecting frame 230, an air inlet nozzle 251 is disposed on one side of the air guide table 250, and a plurality of air outlet nozzles 211 connected to the air inlet nozzle 251 are disposed on the other side of the air guide table 250. When in use, the air guide table 250 and the air outlet nozzle 211 at the side part of the sliding seat 210 can be connected through the air pipe, and then the air inlet nozzle 251 is connected with an external air suction cylinder, so that air can be supplied to the plurality of suction cups 220 by only preparing one air suction cylinder.

A first threaded hole 313 is formed in the connecting end 312 of the U-shaped seat 310, a first through groove 331 is formed in the second connecting frame 330, the second connecting frame 330 is embedded in the inner concave portion of the U-shaped seat 310, and the first adjusting screw 350 penetrates through the first through groove 331 and is inserted into the first threaded hole 313. Thus, when the U-shaped seat 310 slides on the second support bar 340 and corresponds to the sliding seat 210, the first adjusting screw 350 is screwed to fix the positions of the U-shaped seat 310 and the second connecting frame 330 more tightly, so as to prevent the electrode probe 321 from being unable to contact the electrode of the lithium battery due to the deviation between the positions of the U-shaped seat 310 and the sliding seat 210.

Further, second through grooves 332 are formed in two sides of the second connecting frame 330, a connecting column 421 is installed in the connecting plate 420, and the second adjusting screw 360 penetrates through the second through groove 332 and is fixed to the connecting column 421. When the second connecting frame 330 needs to be detached from the connecting plate 420, the second adjusting screw 360 only needs to be unscrewed.

Furthermore, an insulating layer 322 may be disposed outside the electrode probe 321 to prevent inaccurate test data caused by the contact between the electrode probe 321 and the lithium battery when the electrode probe 321 contacts the lithium battery and the lithium battery is bent.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. Lithium cell OCV testing arrangement, its characterized in that includes the frame and sets up the elevator motor at the frame top the bottom of frame is equipped with:

the suction mechanism is connected with the lifting motor through the lifting platform, a plurality of sliding seats are arranged in the suction mechanism, and suckers for sucking the lithium batteries are arranged at the bottoms of the sliding seats;

the testing mechanism is respectively arranged at the front end and the rear end of the suction mechanism, a plurality of U-shaped seats corresponding to the sliding seats are installed in the testing mechanism, a testing seat is fixed at the bottom of each U-shaped seat, and a plurality of electrode probes are arranged on the testing seat at intervals in a hexagonal shape.

2. The lithium battery OCV testing device of claim 1, wherein a first connecting frame is arranged in the suction mechanism, a first supporting rod is arranged on the first connecting frame, the sliding seats are arranged on the first supporting rod in series, and an air outlet nozzle for connecting an air vent pipe is arranged on the side of the sliding seat.

3. The lithium battery OCV testing device of claim 2, wherein an air guide table is installed on the top of the first connecting frame, an air inlet nozzle is arranged on one side of the air guide table, and a plurality of air outlet nozzles connected with the air inlet nozzle are arranged on the other side of the air guide table.

4. The lithium battery OCV testing device of claim 3, wherein the testing device is connected with the rack through a clamping device, the testing mechanism comprises a second connecting frame, the U-shaped seat is arranged on one side of the second connecting frame close to the suction mechanism, the U-shaped seat comprises a protruding end and a connecting end, and the protruding end of the U-shaped seat is inserted into the second connecting frame and is connected in series through a second supporting rod.

5. The lithium battery OCV testing device of claim 4, wherein the clamping device comprises two parallel sliding rails and a connecting plate, the connecting plate is arranged between the sliding rails, the second connecting frame is detachably mounted on the connecting plate, a Z-shaped movable rod is arranged between the sliding rails, a fixed end of the Z-shaped movable rod is rotatably mounted on the rack, movable ends of the Z-shaped movable rod are respectively connected with the connecting plate, and a telescopic motor is arranged on one side of the connecting plate.

6. The lithium battery OCV testing device of claim 5, wherein a first threaded hole is formed at the connection end of the U-shaped seat, the second connection frame is provided with a first through groove, the second connection frame is embedded in the inner concave portion of the U-shaped seat, and the first adjusting screw is inserted into the first threaded hole through the first through groove.

7. The lithium battery OCV testing device of claim 6, wherein a second through groove is formed on two sides of the second connecting frame, a connecting column is installed in the connecting plate, and a second adjusting screw passes through the second through groove and is fixed on the connecting column.

8. The lithium battery OCV testing device of any one of claims 1-7, wherein the electrode probes are externally wrapped with an insulating layer.