Battery cell shaping clamp

Abstract

The utility model discloses a battery cell shaping clamp, which comprises a base, a top sealing back table, a top sealing back table, a top sealing back table, a top sealing back table, a top sealing back table and a top sealing back table, and is characterized in that the base comprises a mounting surface; the leveling assembly comprises an upper pressing head, and the upper pressing head corresponds to the top sealing back table and is arranged on the base; a receding groove is formed in the face, tightly pressing the battery cell, of the upper pressing head, the receding groove corresponds to the side edge protrusion of the top sealing back table, and the upper pressing head can move in a reciprocating mode in the vertical direction and is used for flattening the top sealing back table of the battery cell. According to the utility model, the base is arranged to bear the battery cell, and the upper pressure head with the avoiding groove is arranged on the base, so that when the upper pressure head tightly presses the top sealing back table, the top sealing back table of the battery cell can be accurately flattened without damaging the other parts of the battery cell, a worker does not need to use a Teflon scraping rod to flatten the battery cell, and the probability of scratching the battery cell is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the field of battery core manufacturing, in particular to a battery core shaping fixture. Background Art

[0002] Lithium-ion batteries have become one of the most widely used batteries due to their high operating voltage, small size, light weight, high energy, no memory effect, no pollution, low self-discharge, and long cycle life. Therefore, the quality requirements for lithium-ion batteries are getting higher and higher. Figure 1 As shown, the head of the battery cell is the top seal, hereinafter referred to as the top seal back platform. The tab is exposed from the top seal back platform, which is an important position for welding circuit boards in the subsequent PACK process. Therefore, whether the top seal back platform of the lithium-ion battery cell is flat is one of the quality standards for battery cell shipment and is an indispensable control condition in the preparation process of lithium-ion batteries.

[0003] However, after going through the production process of each step, due to factors such as extrusion and collision, the top seal backing is easily deformed and bent, making it not meet the shipping standards and having a negative impact on the normal progress of the subsequent process. At present, the staff usually use Teflon scrapers to flatten the top seal backing of the battery cell, but since there are protrusions on the side of the top seal backing, manually flattening the top seal backing is likely to scratch the battery cell and make it scrapped. Utility Model Content

[0004] The main purpose of the utility model is to provide a battery core shaping fixture, aiming to solve the problem that the battery core is easily scratched when the top sealing back platform is leveled.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a battery cell shaping fixture, which comprises:

[0006] A base, the base comprising a mounting surface, the mounting surface can carry a battery cell, and a top sealing backing is configured on the top of the battery cell;

[0007] A leveling assembly, the leveling assembly comprising an upper pressure head, the upper pressure head being arranged on the base corresponding to the top sealing backing platform;

[0008] A side of the upper pressing head pressing the battery cell is structured with an avoidance groove, the avoidance groove is arranged corresponding to the side protrusion of the top sealing back stage, and the upper pressing head can reciprocate in the vertical direction to flatten the top sealing back stage of the battery cell.

[0009] In some embodiments, the leveling assembly further includes a pressing head, which is detachably connected to the base, and the battery cell can be placed on an upper surface of the pressing head.

[0010] In some embodiments, a limiter is disposed on the upper surface of the pressing head, and the limiter can abut against the side of the battery cell to limit the left and right position of the battery cell.

[0011] In some embodiments, at least one positioning member is provided on the upper surface of the lower pressure head corresponding to the avoidance groove, and the positioning member can be accommodated in the avoidance groove, and the positioning member can abut against the top of the battery cell to limit the front and rear position of the battery cell.

[0012] In some embodiments, a lower groove is provided on the upper surface of the lower pressure head, and an upper groove is provided on the upper pressure head at a position corresponding to the lower groove, and the tab of the battery cell can be accommodated between the lower groove and the upper groove.

[0013] In some embodiments, the leveling assembly further includes a mounting plate vertically connected to the base and a driving member disposed on the mounting plate, and the upper pressure head is disposed at a driving end of the driving member.

[0014] In some embodiments, the driving end of the driving member is configured with a first connecting plate, and the upper pressure head is detachably connected to the first connecting plate.

[0015] In some embodiments, the leveling assembly further includes a second connecting plate, the mounting plate is provided with a mounting hole, the second connecting plate is provided with at least one strip hole corresponding to the mounting hole, the strip hole is detachably connected to the mounting hole, and the driving member is connected to the second connecting plate.

[0016] In some embodiments, the mounting surface is configured with a receiving groove, and the mounting plate and the pressing head are both disposed in the receiving groove.

[0017] In some embodiments, the base includes a control module, which is electrically connected to the driving member and is used to control the opening and closing of the driving member.

[0018] The utility model provides a base to carry the battery cell, and an upper pressure head with an avoidance groove is provided on the base, so that when the upper pressure head presses the top sealing back stage, the top sealing back stage of the battery cell can be accurately flattened without damaging the rest of the battery cell, and the upper pressure head can reciprocate in the vertical direction. The shaping operation of the top sealing back stage can be completed with the help of the pressure of the upper pressure head, and the staff does not need to use a Teflon scraper to scrape it flat, which greatly reduces the probability of scratching the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a battery cell in one embodiment of the utility model;

[0020] Figure 2 This is a structural schematic diagram of a battery cell shaping fixture in one embodiment of the utility model;

[0021] Figure 3 for Figure 2 Schematic diagram of the structure of the middle shaping component;

[0022] Figure 4 for Figure 3 Schematic diagram of the structure of the middle and lower pressure heads;

[0023] Figure 5 for Figure 3 Schematic diagram of the structure of the middle and upper pressure head;

[0024] Figure 6 for Figure 3 A schematic diagram of the structure of the middle driving part;

[0025] Figure 7 for Figure 3 Exploded view of the mounting plate and the second connecting plate.

[0026] Reference numerals:

[0027] 100, base; 110, mounting surface; 111, accommodating groove; 200, battery cell; 210, top sealing back platform; 220, side protrusion; 230, pole ear; 300, leveling assembly; 310, upper pressure head; 311, avoidance groove; 312, upper groove; 320, lower pressure head; 321, limit member; 322, positioning member; 323, lower groove; 330, mounting plate; 331, mounting hole; 340, driving member; 341, driving end; 341a, first connecting plate; 350, second connecting plate; 351, strip hole. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the scheme in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0031] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0032] The utility model provides a battery core 200 shaping fixture, referring to Figure 1 , Figure 2 and Figure 5 In one embodiment, the battery cell 200 shaping fixture includes:

[0033] The base 100 includes a mounting surface 110 , and the mounting surface 110 can carry the battery cell 200 . The top of the battery cell 200 is configured with a top sealing backing 210 ;

[0034] The leveling assembly 300 includes an upper pressure head 310 , and the upper pressure head 310 is disposed on the base 100 corresponding to the top sealing backing platform 210 ;

[0035] The side of the upper pressing head 310 pressing the battery cell 200 is structured with an avoidance groove 311 , which is arranged corresponding to the side protrusion 220 of the top sealing backing platform 210 , and the upper pressing head 310 can reciprocate in the vertical direction to flatten the top sealing backing platform 210 of the battery cell 200 .

[0036] When in use, the battery cell 200 is placed at a corresponding position below the upper pressure head 310, and then the upper pressure head 310 is controlled to move vertically downward to press the top sealing backing platform 210 of the battery cell 200. After a period of time, the upper pressure head 310 is controlled to move vertically upward. At this time, the battery cell 200 is taken out, and the top sealing backing platform 210 can be leveled. The time for the upper pressure head 310 to apply pressure to the top sealing backing platform 210 can be set as needed, usually more than one second. The time is related to the quality of the upper pressure head 310 and the type of the battery cell 200, and this embodiment does not limit this.

[0037] The base 100 is used to carry the upper pressure head 310 and the battery cell 200, and serves as a stable support platform to ensure that the upper pressure head 310 does not shake when moving up and down, or cause the battery cell 200 to move. Preferably, anti-slip spikes with adjustable height can be provided at the bottom of the base 100 to facilitate the stable installation of the base 100 on various terrains. In order to accurately place the battery cell 200 in a suitable position, various marks can be drawn on the mounting surface 110 of the base 100, such as the outline of the battery cell 200, so that the staff can place the battery cell 200 in alignment with the outline; a suitable receiving groove can also be constructed on the base 100, and the battery cell 200 can be accommodated in the receiving groove. It should be noted that the setting of the receiving groove should not affect the normal use of the upper pressure head 310.

[0038] The upper pressing head 310 is arranged on the base 100. In order to facilitate the upper pressing head 310 to move in the vertical direction, a vertical column can be arranged on the base 100. The upper pressing head 310 is sleeved on the column and slidably connected with the column so that the upper pressing head 310 can slide along the column. A vertical slide rail can also be arranged on the base 100. The upper pressing head 310 is configured with a slider that cooperates with the slide rail to realize the vertical movement of the upper pressing head 310. The upper pressing head 310 is configured with an avoidance groove 311 to facilitate avoiding the side protrusion 220 of the top sealing backing platform 210 when pressing the top sealing backing platform 210 to avoid damage to the battery cell 200. Illustratively, in this embodiment, two avoidance grooves 311 are provided corresponding to the side protrusions 220 on both sides of the top sealing backing platform 210, and the volume of the cavity enclosed by the avoidance grooves 311 is larger than the volume of the side protrusions 220, so that when the upper pressure head 310 is pressed tightly, the side protrusions 220 are accommodated in the avoidance grooves 311, and at the same time, the upper pressure head 310 is prevented from crushing the battery cell 200 when the staff makes a mistake in placing the battery cell 200, so that the fault tolerance rate of the battery cell 200 shaping fixture is higher.

[0039] In this embodiment, a base 100 is provided to carry the battery cell 200, and an upper pressure head 310 with an avoidance groove 311 is provided on the base 100, so that when the upper pressure head 310 presses the top sealing backing platform 210, it can accurately flatten the top sealing backing platform 210 of the battery cell 200 without damaging the rest of the battery cell 200, and the upper pressure head 310 can reciprocate in the vertical direction. The shaping operation of the top sealing backing platform 210 can be completed with the help of the pressure of the upper pressure head 310, and the staff does not need to use a Teflon scraper to scrape it flat, which greatly reduces the probability of scratching the battery cell 200.

[0040] like Figure 2 and Figure 4As shown, in some embodiments, the flattening assembly 300 further includes a pressing head 320, which is detachably connected to the base 100, and the battery cell 200 can be placed on the upper surface of the pressing head 320. By providing a pressing head 320 detachably connected to the base 100, when facing different types of battery cells 200, the corresponding pressing head 320 can be replaced to facilitate the staff to place the battery cell 200 in a suitable position, without having to design and replace multiple battery cell 200 shaping fixtures for different types of battery cells 200.

[0041] In the embodiment of the utility model, there are many ways to detachably connect the lower pressure head 320 and the base 100. For example, it can be a threaded connection, in which corresponding threaded holes and threaded columns are set on the bottom of the lower pressure head 320 and the mounting surface 110 of the base 100, and the two are tightly connected by rotation, which is relatively stable; it can also be a latch connection, in which a raised pin is set on the base 100, and the bottom of the lower pressure head 320 is structured with a matching concave hole, and the two are fixed together by the cooperation of the pin and the concave hole, which is convenient for installation and removal; it can also be a magnetic connection, in which magnetic parts are set at the corresponding positions of the lower pressure head 320 and the base 100, and the two are adsorbed together by magnetic force, so that installation and removal can be achieved, and it is not easily affected by corrosion or wear. It can also be connected by a snap-on connection, which is not limited in this embodiment.

[0042] like Figure 3 and Figure 4 As shown, in some embodiments, a limiter 321 is provided on the upper surface of the lower pressure head 320, and the limiter 321 can abut against the side of the battery cell 200 to limit the left and right position of the battery cell 200. By providing the limiter 321 at a suitable position, when the staff place the battery cell 200, the side of the battery cell 200 is controlled to abut against the limiter 321 to ensure that the battery cell 200 is correctly positioned in the horizontal direction, thereby reducing the burden of the staff to adjust the position of the battery cell 200 and improving the efficiency of leveling the top sealing backing stage 210.

[0043] like Figure 3 and Figure 4 As shown, in some embodiments, at least one positioning member 322 is provided on the upper surface of the lower pressure head 320 corresponding to the avoidance groove 311 , the positioning member 322 can be accommodated in the avoidance groove 311 , and the positioning member 322 can abut the top of the battery cell 200 to limit the front and rear position of the battery cell 200 .

[0044] By setting the positioning piece 322 at a suitable position, when the staff places the battery cell 200, the top of the battery cell 200 can be controlled to abut against the positioning piece 322 to ensure that the battery cell 200 is correctly positioned in the longitudinal direction, further reducing the burden of the staff to adjust the position of the battery cell 200 and improving the efficiency of leveling the top sealing backing platform 210. At the same time, by setting the positioning piece 322, if the upper pressure head 310 and the lower pressure head 320 are installed incorrectly, resulting in a mismatch in position, the avoidance groove 311 cannot normally accommodate the positioning piece 322, so that the bottom surface of the upper pressure head 310 abuts against the positioning piece 322, avoiding the upper pressure head 310 from crushing the battery cell 200. Exemplarily, in this embodiment, there are two positioning pieces 322, corresponding to the two avoidance grooves 311, which further improves the convenience of placing the battery cell 200.

[0045] like Figure 3-Figure 5 As shown, in some embodiments, the lower pressing head 320 is provided with a lower groove 323, and the upper pressing head 310 is provided with an upper groove 312 at a position corresponding to the lower groove 323, and the pole ear 230 of the battery cell 200 can be accommodated between the lower groove 323 and the upper groove 312. Since the pole ear 230 usually extends from the top sealing backing 210, the upper groove 312 and the lower groove 323 are respectively provided on the upper pressing head 310 and the lower pressing head 320, so that when the upper pressing head 310 presses the battery cell 200, the upper groove 312 and the lower groove 323 enclose a cavity to accommodate the pole ear 230, so as to prevent the upper pressing head 310 from damaging the pole ear 230.

[0046] like Figure 3 As shown, in some embodiments, the leveling assembly 300 further includes a mounting plate 330 vertically connected to the base 100 and a driving member 340 disposed on the mounting plate 330, and the upper pressure head 310 is disposed at a driving end 341 of the driving member 340. The mounting plate 330 is used to mount the driving member 340, and the driving end 341 of the driving member 340 can drive the upper pressure head 310 to reciprocate in the vertical direction, thereby eliminating the need for the staff to manually lift or lower the upper pressure head 310, reducing the burden on the staff and improving the leveling efficiency of the top sealing backing platform 210. The driving member 340 can be a commonly used driving structure such as a cylinder, a motor, etc., and this embodiment does not limit this.

[0047] like Figure 6 As shown, in some embodiments, the driving end 341 of the driving member 340 is configured with a first connecting plate 341A, and the upper pressing head 310 is detachably connected to the first connecting plate 341A. By setting the upper pressing head 310 and the first connecting plate 341A to be detachably connected, when facing different types of battery cells 200, the appropriate upper pressing head 310 can be replaced as needed without replacing the entire battery cell 200 shaping fixture. The specific detachable connection method is similar to the aforementioned embodiment and will not be repeated here.

[0048] like Figure 3 and Figure 7 As shown, in some embodiments, the leveling assembly 300 further includes a second connecting plate 350, the mounting plate 330 is provided with a mounting hole 331, the second connecting plate 350 is provided with at least one strip hole 351 corresponding to the mounting hole 331, the strip hole 351 is detachably connected to the mounting hole 331, and the driving member 340 is connected to the second connecting plate 350. The second connecting plate 350 is used to connect the mounting plate 330 and the driving member 340, and the strip hole 351 is provided on the second connecting plate 350, so that the position of the second connecting plate 350 on the mounting plate 330 can be adjusted as needed, and then the position of the driving member 340 can be adjusted to adapt to different models of upper pressing heads 310, ensuring that the upper pressing head 310 can press the top sealing backing platform 210.

[0049] like Figure 2 As shown, in some embodiments, the mounting surface 110 is configured with a receiving groove 111, and the mounting plate 330 and the pressing head 320 are both disposed in the receiving groove 111. The provision of the receiving groove 111 facilitates the staff to complete the installation of the mounting plate 330 and the pressing head 320.

[0050] In some embodiments, the base 100 includes a control module, which is electrically connected to the drive member 340 and is used to control the opening and closing of the drive member 340. The control module is arranged on the base 100, so that the staff can operate the drive member 340 at any time. Exemplarily, the control module is arranged in a cavity inside the base 100, and the control module includes a switch button and an emergency stop button arranged on the side of the protruding base 100. The switch button controls the opening and closing of the drive member 340, and the emergency stop button enables the staff to disconnect the power supply of the drive member 340 in an emergency, and forcibly stop the drive member 340 to prevent it from causing further damage.

[0051] The above description is only a partial or preferred embodiment of the present invention. Neither the text nor the drawings can limit the scope of protection of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the overall concept of the present invention, or direct / indirect application in other related technical fields are included in the scope of protection of the present invention.

Claims

1. A battery cell shaping fixture, characterized in that: include: A base, the base comprising a mounting surface, the mounting surface can carry a battery cell, and the top of the battery cell is structured with a top sealing backing; A leveling assembly, the leveling assembly comprising an upper pressure head, the upper pressure head being arranged on the base corresponding to the top sealing backing platform; A side of the upper pressing head pressing the battery cell is structured with an avoidance groove, the avoidance groove is arranged corresponding to the side protrusion of the top sealing back stage, and the upper pressing head can reciprocate in the vertical direction to flatten the top sealing back stage of the battery cell.

2. The battery cell shaping fixture according to claim 1, characterized in that: The leveling assembly further comprises a pressing head, which is detachably connected to the base, and the battery cell can be placed on the upper surface of the pressing head.

3. The battery cell shaping fixture according to claim 2, characterized in that: A limiting member is disposed on the upper surface of the lower pressure head, and the limiting member can abut against the side of the battery core to limit the left and right positions of the battery core.

4. The battery cell shaping fixture according to claim 3, characterized in that: At least one positioning member is provided on the upper surface of the lower pressure head corresponding to the avoidance groove. The positioning member can be accommodated in the avoidance groove, and the positioning member can abut against the top of the battery cell to limit the front and rear position of the battery cell.

5. The battery cell shaping fixture according to claim 4, characterized in that: The upper surface of the lower pressing head is provided with a lower groove, and the upper pressing head is provided with an upper groove at a position corresponding to the lower groove, and the tab of the battery cell can be accommodated between the lower groove and the upper groove.

6. The battery cell shaping fixture according to claim 2, characterized in that: The leveling assembly also includes a mounting plate vertically connected to the base and a driving member arranged on the mounting plate, and the upper pressure head is arranged at the driving end of the driving member.

7. The battery cell shaping fixture according to claim 6, characterized in that: The driving end of the driving member is configured with a first connecting plate, and the upper pressing head is detachably connected to the first connecting plate.

8. The battery cell shaping fixture according to claim 7, characterized in that: The leveling assembly also includes a second connecting plate, the mounting plate is provided with a mounting hole, the second connecting plate is provided with at least one strip hole corresponding to the mounting hole, the strip hole is detachably connected to the mounting hole, and the driving member is connected to the second connecting plate.

9. The battery cell shaping fixture according to claim 6, characterized in that: The mounting surface is structured with a receiving groove, and the mounting plate and the pressing head are both arranged in the receiving groove.

10. The battery cell shaping fixture according to any one of claims 6 to 9, characterized in that: The base includes a control module, which is electrically connected to the driving member and is used to control the opening and closing of the driving member.

Images