A battery cell fixing device

Abstract

The present invention discloses a battery cell fixing device. The battery cell fixing device includes: a support platform, the support platform is used to carry the battery cell and the film, the film is used to be placed on the support platform, and the battery cell is used to be placed on the side of the film facing away from the support platform; a positioning mechanism, including a positioning plate and a positioning assembly, the positioning plate is provided on the side of the bearing surface for abutting the battery cell and the film, and the positioning assembly is provided adjacent to the positioning plate for fixing the position of the battery cell; a pressing mechanism, for abutting the side of the battery cell away from the positioning plate to press and fix the battery cell. The present invention can fix the battery cell and the film through the above-mentioned battery cell fixing device, and can adjust the position of the battery cell and the film, so that the battery cell and the film can be accurately aligned, thereby improving the attachment and alignment accuracy of the film-coated battery cell.

Description

Technical Field

[0001] The present invention relates to the technical field of battery core film arrangement, and in particular to a battery core fixing device. Background Art

[0002] During the production and processing of batteries, the battery cells need to be coated, that is, aluminum-plastic film or other film materials are coated on the surface of the battery cells to encapsulate the battery cells. In the existing processing, the coating and the battery cells are placed on a supporting fixture on a rotating platform, and the supporting fixture is rotated with the rotating platform to a preset coating station to coat the battery cells. In the process of the supporting fixture rotating with the rotating platform, the battery cells are easily offset on the supporting fixture, resulting in inaccurate alignment between the battery cells and the coating, which in turn leads to poor coating effect of the battery cells, thereby affecting the quality of the finished battery. Summary of the Invention

[0003] The present invention provides a battery cell fixing device to solve the problem in the prior art that the battery cell is easily offset on a supporting fixture, thereby causing inaccurate alignment between the battery cell and the coating, and further resulting in poor coating effect of the battery cell.

[0004] To solve the above technical problems, the present invention adopts a technical solution: providing a battery cell fixing device, which is used to fix the battery cell and the envelope so that the battery cell and the envelope can be transported after being fixed. The battery cell fixing device includes:

[0005] A supporting platform, the supporting platform is used to carry the battery core and the envelope, the envelope is used to be placed on the supporting platform, and the battery core is used to be placed on the side of the envelope facing away from the supporting platform;

[0006] A positioning mechanism, comprising a positioning plate and a positioning assembly, wherein the positioning plate is arranged on one side of the bearing surface for abutting the battery cell and the envelope, and the positioning assembly is arranged adjacent to the positioning plate for fixing the position of the battery cell;

[0007] The pressing mechanism is used to press against a side of the battery core away from the positioning plate to press and fix the battery core.

[0008] In one embodiment,

[0009] The envelope includes a plurality of covering portions, which are folded and respectively attached to different surfaces of the battery cell;

[0010] The supporting platform includes a plurality of bearing plates, and each bearing plate includes a bearing surface for bearing one of the covering parts.

[0011] In one embodiment,

[0012] The carrying surface of each of the carrying plates is provided with adsorption holes so as to adsorb and fix the covering portion on the carrying surface.

[0013] In one embodiment,

[0014] The positioning assembly includes a first clamping jaw, a second clamping jaw, and a guide rail, wherein the first clamping jaw and the second clamping jaw are both mounted on the guide rail, and each of the first clamping jaw and the second clamping jaw includes a clamping portion, wherein the clamping portions of the first clamping jaw and the second clamping jaw are respectively disposed on opposite sides of the positioning plate, and the first clamping jaw and the second clamping jaw can slide along the guide rail so that the clamping portions of the first clamping jaw and the second clamping jaw respectively move toward or away from each other;

[0015] The clamping parts of the first clamping jaw and the second clamping jaw are respectively used to clamp the opposite sides of the battery core to fix the battery core.

[0016] In one embodiment,

[0017] The first clamping jaw and the second clamping jaw are respectively connected to a driving mechanism, and the driving mechanism drives the first clamping jaw and the second clamping jaw to slide along the guide rail; or

[0018] The positioning assembly also includes a first elastic member, and the two ends of the first elastic member are respectively connected to the first clamping jaw and the second clamping jaw; wherein, the first clamping jaw and the second clamping jaw are respectively provided with a follower part at one end close to each other, and the follower parts of the first clamping jaw and the second clamping jaw are arranged at intervals, and a top block with a gradually changing width is gradually inserted between the two follower parts, so that the first clamping jaw and the second clamping jaw are respectively moved in a direction away from each other.

[0019] In one embodiment,

[0020] The pressing mechanism includes a first slide rail, a sliding mounting plate and a pressing member;

[0021] The sliding mounting plate is slidably mounted on the first slide rail;

[0022] The pressing member is installed on the sliding mounting plate, and moves along the first slide rail toward the positioning plate through the sliding mounting plate, so that the pressing member presses against the side of the battery cell away from the positioning plate, and the pressing member and the positioning plate press against the opposite sides of the battery cell respectively to fix the battery cell.

[0023] In one embodiment,

[0024] A second sliding rail is also provided on the sliding mounting plate, and the pressing member includes a first pressing member and a second pressing member. Both the first pressing member and the second pressing member can be slidably installed on the second sliding rail, and the first pressing member and the second pressing member are respectively used to abut against the opposite ends of the battery cell on the side away from the positioning plate.

[0025] In one embodiment,

[0026] The first pressing member and the second pressing member are elastically connected via a second elastic member. The first pressing member and the second pressing member are also respectively connected to a power device, which drives the first pressing member and the second pressing member to move away from each other along the second slide rail.

[0027] In one embodiment,

[0028] The pressing mechanism further includes a first mounting plate and a second mounting plate. The first pressing member is mounted on the second slide rail via the first mounting plate. The second pressing member is mounted on the second slide rail via the second mounting plate.

[0029] In one embodiment,

[0030] The support platform is further provided with a positioning post, which is used for plugging and matching with the through hole on the envelope to position the envelope.

[0031] Different from the prior art, the present invention proposes a battery cell fixing device. By providing positioning posts and adsorption holes on the carrier plate, the film can be positioned and fixed to the carrier platform. A pressing mechanism can press the battery cell against the positioning plate to fix the battery cell. The pressing member in the pressing mechanism can also adjust the position of the battery cell relative to the film, thereby ensuring accurate alignment of the battery cell and the film, thereby improving the attachment and alignment accuracy of the film-coated battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive work, among which:

[0033] Figure 1 It is a structural schematic diagram of an embodiment of a battery cell fixing device provided by the present invention;

[0034] Figure 2 yes Figure 1 A schematic structural diagram of a top view of the battery cell fixing device shown;

[0035] Figure 3 yes Figure 1 The structure diagram of the bottom view of the battery cell fixing device is shown. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0037] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0038] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only 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 specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can 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 invention.

[0039] See also Figure 1-Figure 2 ,in, Figure 1 It is a structural schematic diagram of an embodiment of a battery cell fixing device provided by the present invention; Figure 2 yes Figure 1 The schematic diagram of the top view of the battery cell fixing device is shown.

[0040] The battery cell fixing device 10 includes a supporting platform 100 , a positioning mechanism 200 and a pressing mechanism 300 .

[0041] The support platform 100 is used to support the battery cell and the film. The film is placed on the support platform 100, and the battery cell is placed on the side of the film facing away from the support platform 100. The film can be a protective film such as aluminum-plastic film or Mylar (polyester film). The film is used to cover the surface of the battery cell to protect the battery cell.

[0042] The envelope in this embodiment is the envelope before it is applied to the surface of the cell, and can be an expanded form of the shell that matches the outer contour of the cell. Specifically, if the cell is a rectangular parallelepiped, the envelope can be an expanded form that matches five faces of the rectangular parallelepiped; alternatively, it can be an expanded form that matches four faces or three adjacent faces of the rectangular parallelepiped.

[0043] Therefore, the envelope may include a plurality of covering portions, which are folded and used to be attached to different surfaces of the battery cell respectively, and each covering portion can be attached to one surface of the battery cell.

[0044] The corresponding supporting platform 100 may include a plurality of supporting plates 111 , and each supporting plate 111 includes a supporting surface for supporting one covering portion.

[0045] In order to ensure the fixation of the envelope, adsorption holes 113 can be opened on the bearing surface of each bearing plate 111. The adsorption holes can be connected to a preset vacuum device, and each covering part can be adsorbed and fixed on the bearing surface through the action of the vacuum device.

[0046] Furthermore, positioning posts 114 may be provided on the support platform 100 . When the membrane is placed on the support platform 100 , the positioning posts 114 may be plugged into and matched with the through holes on the membrane to position the membrane.

[0047] The positioning mechanism 200 includes a positioning plate 210 and a positioning assembly 220. The positioning plate 210 is disposed on one side of the support platform 100 and is used to abut the battery cell and the film. The positioning plate 210 is used to position one side of the battery cell and the film. The film can be placed on the support platform 100 with one side of the film abutting the positioning plate 210. The battery cell can then be placed on the film with one side of the cell abutting the positioning plate 210. This allows the positioning plate 210 to position the sides of the battery cell and the film on the same side. The side of the battery cell that abuts the positioning plate 210 can be the top cover end of the battery cell.

[0048] The positioning assembly 220 is disposed adjacent to the positioning plate 210 to fix the position of the battery cell.

[0049] Specifically, the positioning assembly 220 includes a first clamping jaw 221, a second clamping jaw 222 and a guide rail 223. The first clamping jaw 221 and the second clamping jaw 222 are both installed on the guide rail 223. The first clamping jaw 221 and the second clamping jaw 222 both include a clamping portion 2211. The clamping portions 2211 of the first clamping jaw 221 and the second clamping jaw 222 are respectively arranged on opposite sides of the positioning plate 210. The first clamping jaw 221 and the second clamping jaw 222 can both slide along the guide rail 223 so that the clamping portions 2211 of the first clamping jaw 221 and the second clamping jaw 222 move toward or away from each other.

[0050] Therefore, when the battery cell and the film abut against the positioning plate 210 , the first clamping jaw 221 and the second clamping jaw 222 can clamp and fix the two opposite sides of the end of the battery cell abutting against the positioning plate 210 .

[0051] Specifically, when the first clamping jaw 221 and the second clamping jaw 222 move away from each other, the distance between the two clamping parts 2211 can be increased, so that the battery cell can be set between the two clamping parts 2211, and then by moving the first clamping jaw 221 and the second clamping jaw 222 toward each other, the clamping parts 2211 of the first clamping jaw 221 and the second clamping jaw 222 can respectively abut against the opposite sides of the battery cell, so that the battery cell can be clamped and fixed.

[0052] In this embodiment, the first clamping jaw 221 and the second clamping jaw 222 are respectively connected to a driving mechanism, which drives the first clamping jaw 221 and the second clamping jaw 222 to slide along the guide rail 223, thereby clamping the battery cell. The driving mechanism can be a power mechanism such as a cylinder or a motor.

[0053] Alternatively, the positioning assembly 220 may also enable the first clamping jaw 221 and the second clamping jaw 222 to move toward or away from each other through a lifting block mechanism.

[0054] For details, please refer to Figure 2 .

[0055] The positioning assembly 220 further includes a first elastic member 224, the two ends of the first elastic member 224 are respectively connected to the first clamping jaw 221 and the second clamping jaw 222, so that the first clamping jaw 221 and the second clamping jaw 222 can be elastically connected, wherein the first clamping jaw 221 and the second clamping jaw 222 are respectively provided with a follower 2212 at one end close to each other, and the follower 2212 of the first clamping jaw 221 and the second clamping jaw 222 are spaced apart, and a top block with a gradually changing width (not shown in the figure) is gradually inserted between the two follower parts 2212, so that the first The clamping jaw 221 and the second clamping jaw 222 move in the direction away from each other respectively. At this time, the first elastic member 224 of the first clamping jaw 221 and the second clamping jaw 222 is stretched; when the battery cell is abutted against the positioning plate 210, the top block can be gradually pulled out from between the two follower parts 2212, so that the first clamping jaw 221 and the second clamping jaw 222 can move in the direction close to each other under the elastic force of the first elastic member 224, that is, the clamping parts 2211 of the first clamping jaw 221 and the second clamping jaw 222 can clamp and position the two sides of the battery cell.

[0056] In this embodiment, the clamping portions 2211 of the first clamping jaw 221 and the second clamping jaw 222 respectively press against the opposite sides of the battery cell, thereby presetting the positions of the first clamping jaw 221 and the second clamping jaw 222, and the position of the battery cell on the film can also be adjusted, so that the battery cell and the film are accurately aligned.

[0057] Among them, the follower parts 2212 of the first jaw 221 and the second jaw 222 can be the end faces of the first jaw 221 and the second jaw 222 close to each other, or can be cam followers respectively arranged at one end of the first jaw 221 and the second jaw 222 close to each other, wherein the axes of the cams in the cam followers of the first jaw 221 and the second jaw 222 are arranged in parallel.

[0058] See also Figure 1-Figure 3 .

[0059] The pressing mechanism 300 includes a first slide rail 310, a sliding mounting plate 320, a second slide rail 330 and a pressing member 340; wherein the sliding mounting plate 320 can be slidably mounted on the first slide rail 310; the pressing member 340 is mounted on the sliding mounting plate 320, and the sliding mounting plate 320 moves along the first slide rail 310 toward the positioning plate 210, so that the pressing member 340 presses on the side of the battery cell away from the positioning plate 210, thereby fixing the battery cell by pressing the opposite sides of the battery cell respectively through the pressing member 340 and the positioning plate 210.

[0060] In this embodiment, the first slide rail 310 can be set on the side of the support platform 100 facing away from the bearing surface, wherein the first slide rail 310 can extend from one end of the support platform 100 where the positioning plate 210 is set to one end of the support platform 100 where the pressing member 340 is set.

[0061] Therefore, when the battery cell is placed on the film, the pressing member 340 can press the surface of the battery cell away from the positioning plate 210, and then the sliding mounting plate 320 can move along the first slide rail 310 toward the positioning plate 210, so that the pressing member 340 can drive the battery cell to move to abut against the positioning plate 210, thereby adjusting the position of the battery cell on the film.

[0062] Therefore, the battery cell can be positioned in one direction by the first clamping jaw 221 and the second clamping jaw 222; and the battery cell can be positioned perpendicular to the direction by the pressing member 340 and the positioning plate 210, so that the battery cell can be accurately aligned with the envelope.

[0063] In this embodiment, a second sliding rail 330 is also provided on the sliding mounting plate 320, and the pressing member 340 includes a first pressing member 341 and a second pressing member 342. The first pressing member 341 and the second pressing member 342 can both be slidably installed on the second sliding rail 330, and the first pressing member 341 and the second pressing member 342 are respectively used to abut against the opposite ends of the side of the battery cell away from the positioning plate 210.

[0064] The first pressing member 341 and the second pressing member 342 are arranged on one side of the bearing surface of the support platform 100 , so the first pressing member 341 and the second pressing member 342 can also be installed on the second slide rail 330 through the first mounting plate 351 and the second mounting plate 352 respectively.

[0065] Specifically, one end of the first pressing member 341 is connected to the first mounting plate 351, and the other end of the first pressing member 341 is used to press the battery cell; the end of the first mounting plate 351 away from the first pressing member 341 can be installed on the second slide rail 330 and slideably match the second slide rail 330; similarly, the second pressing member 342 can be slidably installed on the second slide rail 330 through the second mounting plate 352.

[0066] The first pressing member 341 and the second pressing member 342 can also be connected to a power device respectively, so that the first pressing member 341 and the second pressing member can move towards or away from each other along the direction of the second slide rail 330 under the drive of the power device.

[0067] Therefore, when the film needs to be placed on the support platform 100, the first pressure piece 341 and the second pressure piece 342 can be moved in directions away from each other, so that the distance between the first pressure piece 341 and the second pressure piece 342 is increased, so that the film can pass through the area between the first pressure piece 341 and the second pressure piece 342 and be placed on the support platform 100; after the film is placed on the support platform 100, the first pressure piece 341 and the second pressure piece 342 can be moved in directions close to each other, so that the first pressure piece 341 and the second pressure piece 342 can abut the end face of the battery cell away from the positioning plate 210.

[0068] The first pressing member 341 and the second pressing member 342 may be elastically connected via the second elastic member 360 .

[0069] In summary, the present invention provides a battery cell fixing device. By providing positioning posts and adsorption holes on a carrier plate, the film can be positioned and fixed to the carrier platform. A pressing mechanism can be used to press the battery cell against the positioning plate to secure it. The pressing member in the pressing mechanism can also adjust the position of the battery cell relative to the film, thereby ensuring accurate alignment between the battery cell and the film, thereby improving the accuracy of the film-coated battery cell.

[0070] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A battery cell fixing device, characterized in that: The battery cell fixing device is used to fix the battery cell and the film, and the battery cell fixing device includes: A supporting platform, the supporting platform is used to carry the battery core and the envelope, the envelope is used to be placed on the supporting platform, and the battery core is used to be placed on the side of the envelope facing away from the supporting platform; A positioning mechanism, comprising a positioning plate and a positioning assembly, wherein the positioning plate is arranged on one side of the support platform for abutting the battery cell and the envelope, the side of the battery cell abutting the positioning plate is the top cover end of the battery cell, and the positioning assembly is arranged adjacent to the positioning plate for fixing the position of the battery cell; The pressing mechanism is used to press against the side of the battery cell away from the positioning plate to press and fix the battery cell; the pressing mechanism includes a first slide rail, a sliding mounting plate and a pressing member; the sliding mounting plate can be slidably mounted on the first slide rail; the pressing member is mounted on the sliding mounting plate, and moves along the first slide rail toward the positioning plate through the sliding mounting plate, so that the pressing member presses against the side of the battery cell away from the positioning plate, and the pressing member and the positioning plate press against the opposite sides of the battery cell respectively to fix the battery cell.

2. The battery core fixing device according to claim 1, characterized in that: The envelope includes a plurality of covering portions, which are folded and respectively attached to different surfaces of the battery cell; The supporting platform includes a plurality of bearing plates, and each bearing plate includes a bearing surface for bearing one of the covering parts.

3. The battery core fixing device according to claim 2, characterized in that: The carrying surface of each of the carrying plates is provided with adsorption holes so as to adsorb and fix the covering portion on the carrying surface.

4. The battery core fixing device according to claim 1, characterized in that: The positioning assembly includes a first clamping jaw, a second clamping jaw, and a guide rail, wherein the first clamping jaw and the second clamping jaw are both mounted on the guide rail, and each of the first clamping jaw and the second clamping jaw includes a clamping portion, wherein the clamping portions of the first clamping jaw and the second clamping jaw are respectively disposed on opposite sides of the positioning plate, and the first clamping jaw and the second clamping jaw can slide along the guide rail so that the clamping portions of the first clamping jaw and the second clamping jaw respectively move toward or away from each other; The clamping parts of the first clamping jaw and the second clamping jaw are respectively used to clamp the opposite sides of the battery core to fix the battery core.

5. The battery core fixing device according to claim 4, characterized in that: The first clamping jaw and the second clamping jaw are respectively connected to a driving mechanism, and the driving mechanism drives the first clamping jaw and the second clamping jaw to slide along the guide rail; or The positioning assembly also includes a first elastic member, and the two ends of the first elastic member are respectively connected to the first clamping jaw and the second clamping jaw; wherein, the first clamping jaw and the second clamping jaw are respectively provided with a follower part at one end close to each other, and the follower parts of the first clamping jaw and the second clamping jaw are arranged at intervals, and a top block with a gradually changing width is gradually inserted between the two follower parts, so that the first clamping jaw and the second clamping jaw are respectively moved in a direction away from each other.

6. The battery cell fixing device according to any one of claims 1 to 5, characterized in that: A second sliding rail is also provided on the sliding mounting plate, and the pressing member includes a first pressing member and a second pressing member. Both the first pressing member and the second pressing member can be slidably installed on the second sliding rail, and the first pressing member and the second pressing member are respectively used to abut against the opposite ends of the battery cell on the side away from the positioning plate.

7. The battery core fixing device according to claim 6, characterized in that: The first pressing member and the second pressing member are elastically connected via a second elastic member. The first pressing member and the second pressing member are also respectively connected to a power device, which drives the first pressing member and the second pressing member to move away from each other along the second slide rail.

8. The battery core fixing device according to claim 7, characterized in that: The pressing mechanism further includes a first mounting plate and a second mounting plate. The first pressing member is mounted on the second slide rail via the first mounting plate. The second pressing member is mounted on the second slide rail via the second mounting plate.

9. The battery core fixing device according to any one of claims 1 to 5, characterized in that: The support platform is further provided with a positioning post, which is used for plugging and matching with the through hole on the envelope to position the envelope.

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