Battery cell module extrusion mechanism and extrusion device

Abstract

The utility model provides a battery cell module extrusion mechanism and device, the battery cell module extrusion mechanism comprises a base and at least one extrusion assembly, and the extrusion assembly comprises a first driving piece, a push block, an extrusion plate, a push wheel and a reset spring. The extrusion plate is connected to the base in a sliding mode and can slide in the first horizontal direction, and the push wheel is installed on the extrusion plate. The first driving piece is used for driving the pushing and pressing block to slide back and forth in the second horizontal direction so that the pushing and pressing block can be switched between the pushing and pressing position and the releasing position. When the first driving piece drives the pushing and pressing block to slide from the releasing position to the pushing and pressing position, the pushing and pressing block pushes the extruding plate to slide towards the battery cell module along the first horizontal direction through the pushing wheel, so that the extruding end of the extruding plate is driven to extrude the end part of the battery cell module. Compared with an existing battery cell module extruding device, the first driving part of the battery cell module extruding mechanism provided by the utility model outputs small thrust to realize the same extruding effect on the battery cell module, so that the equipment cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of semiconductor production equipment, and specifically to a battery cell module extrusion mechanism and an extrusion device. Background Art

[0002] like Figure 1 As shown, the battery module 100 is formed by stacking multiple battery cells 101. To secure the multiple battery cells 101, two steel strips 200 are generally wrapped around the battery module to tightly fit the multiple battery cells 101 together. Because the steel strips 200 themselves are not sufficiently elastic, a battery module squeezing mechanism is required to squeeze the battery module 100 from both ends during the steel strip wrapping process, pressing the battery cells 101 within the battery module 100 together.

[0003] Current cell module extrusion mechanisms typically use a first driver (e.g., a cylinder) to drive a compression member along the length of the cell module to compress the cell module. This structure requires the first driver to possess significant thrust, increasing equipment costs. Furthermore, the first driver experiences significant reaction from the cell module, making it susceptible to damage. Utility Model Content

[0004] In order to solve the above technical problems, the present application provides a battery cell module extrusion mechanism, which adopts the following technical solutions:

[0005] A battery cell module extrusion mechanism includes a base and at least one extrusion assembly, wherein the extrusion assembly includes a first driving member, a pushing block, an extrusion plate, a pushing wheel and a return spring, wherein:

[0006] The extrusion plate is slidably connected to the base and can slide along the first horizontal direction. The push wheel is mounted on the extrusion plate. One end of the return spring is connected to the base, and the other end of the return spring is connected to the extrusion plate. The length direction of the return spring extends along the first horizontal direction.

[0007] The first driving member is provided on the base, the pushing block is slidably connected to the base and is connected to the driving end of the first driving member, a pushing inclined surface is formed on the pushing block, and the pushing wheel on the extrusion plate is pressed against the pushing inclined surface, and the first driving member is used to drive the pushing block to slide back and forth along the second horizontal direction so that the pushing block switches between a pushing position and a release position, and the second horizontal direction is perpendicular to the first horizontal direction;

[0008] When the first driving member drives the pushing block to slide from the release position toward the pushing position, the pushing inclined surface of the pushing block pushes the extrusion plate to slide along the first horizontal direction toward the battery cell module via the pushing wheel, so as to drive the extrusion end of the extrusion plate to squeeze the end of the battery cell module, and the return spring extends under the pull of the extrusion plate;

[0009] When the first driving member drives the pushing block to slide from the pushing position toward the releasing position, the pushing inclined surface of the pushing block gradually separates from the pushing wheel, and the return spring loses pressure and retracts, thereby driving the extrusion plate to move away from the battery cell module along the first horizontal direction.

[0010] The battery cell module extrusion mechanism provided by the present application has a first driving member that pushes a pushing block perpendicularly to the length direction of the battery cell module, and the pushing block pushes the push wheel on the extrusion plate via the pushing inclined surface thereon, thereby pushing the extrusion plate to extrude the battery cell module parallel to the length direction of the battery cell module. Compared with the existing battery cell module extrusion mechanism, the first driving member of the battery cell module extrusion mechanism provided by the present application can achieve the same extrusion effect on the battery cell module by outputting a smaller thrust, thereby reducing the equipment cost. In addition, the reaction force of the battery cell module is mainly applied to the base, and the reaction force from the battery cell module borne by the first driving member is reduced, thereby reducing the risk of damage to the first driving member and extending the service life of the battery cell module extrusion mechanism.

[0011] In some embodiments, at least two extrusion blocks are spaced apart along the second horizontal direction at the extrusion end of the extrusion plate, and the at least two extrusion blocks cooperate to extrude the end of the battery cell module.

[0012] By arranging more than two extrusion blocks on the extrusion end of the extrusion plate, the extrusion end of the extrusion plate can squeeze the end of the battery cell module from more than two different positions, thereby improving the force uniformity of the end of the battery cell module and preventing the local end of the battery cell module from being excessively pressurized, causing the battery cell to be damaged.

[0013] In some embodiments, a limiting wheel is provided at the bottom of the pushing block, and a limiting groove is provided on the side of the extrusion plate facing the pushing block; when the extrusion plate slides away from the battery cell module along the first horizontal direction to reset, the limiting wheel abuts against the limiting groove to maintain a predetermined distance between the pushing wheel and the base.

[0014] When the extrusion plate slides away from the battery module and resets, the limiting wheel abuts against the limiting groove, so that the push wheel and the base maintain a predetermined distance, preventing the distance between the push wheel and the base from being too close, causing the push block to be unable to push the push wheel normally.

[0015] In some embodiments, the battery cell module extrusion mechanism includes at least two groups of extrusion assemblies spaced apart along the vertical direction on the base, and the at least two groups of extrusion assemblies extrude the ends of the battery cell module from different extrusion positions.

[0016] Since two or more extrusion assemblies are arranged at intervals along the vertical direction, and the extrusion plates of each extrusion assembly can independently move toward or away from the battery cell module, during the steel strip application process, when the extrusion plate of one extrusion assembly disengages from the battery cell module to avoid the steel strip, the extrusion plates of the other extrusion assemblies continue to press the end of the battery cell module, thereby keeping the battery cell module firmly compressed. Ultimately, this ensures that the steel strip can slide smoothly along the side wall of the battery cell module and finally reach the target installation position.

[0017] In some embodiments, the battery cell module extrusion mechanism further includes a pressing assembly located below the extrusion assembly, and the pressing assembly is used to continuously press the end of the battery cell module.

[0018] The clamping assembly continuously presses the ends of the battery cell module during the steel strip application process to ensure that the battery cell module remains fixed.

[0019] In some embodiments, the clamping assembly includes a clamping spring and a clamping plate, wherein: the clamping plate is slidably connected to the base and can slide along a first horizontal direction; the first end of the clamping spring is connected to the base, and the second end of the clamping spring is connected to the clamping plate, and the clamping end of the clamping plate is continuously pressed against the end of the battery cell module under the pressure of the clamping spring.

[0020] By setting the pressing assembly, the pressing end of the pressing plate is continuously pressed against the end of the battery cell module under the pressure of the pressing spring.

[0021] In some embodiments, the battery cell module extrusion mechanism also includes a base, which is slidably installed on the base along a first horizontal direction; the clamping assembly includes a clamping plate and a clamping spring, the clamping plate is installed at the bottom end of the base and extends along the first horizontal direction, the first end of the clamping spring is connected to the base, and the second end of the clamping spring is connected to the base, and the clamping end of the clamping plate on the base is continuously pressed against the end of the battery cell module under the pressure of the clamping spring.

[0022] The base is slidably mounted on the base and the pressing assembly is configured. When the battery cell module needs to be squeezed, the base is first controlled to move to a target position close to the battery cell module. This allows the pressing end of the pressing plate on the base to be continuously pressed against the end of the battery cell module under the pressure of the pressing spring, thereby fixing the end of the battery cell module. At the same time, the squeezing assembly is already close to the battery cell module, so the squeezing assembly only needs to move a small distance toward the battery cell module to squeeze the battery cell module.

[0023] In some embodiments, when the pushing block is in the releasing position, the pressing end of the pressing plate protrudes beyond the extruding end of the extruding plate in the first horizontal direction.

[0024] With this arrangement, when the base moves toward the cell module to the target position, the pressing end of the pressing plate, under the pressure of the pressing spring, presses against the end of the cell module, thereby securing the cell module from one end. At this time, the pressing end of the squeezing plate does not contact the cell module, and there is a movable space between it and the cell module. In other words, the squeezing plate can move toward the cell module to squeeze the end of the cell module, and move away from the cell module to disengage the end of the cell module.

[0025] The present application also provides a battery cell module extrusion device, which includes a supporting platform and two battery cell module extrusion mechanisms as described above, wherein: the supporting platform is used to support the battery cell module to be extruded; the two battery cell module extrusion mechanisms are respectively arranged on both sides of the length direction of the supporting platform, and the two battery cell module extrusion mechanisms are used to extrude the two ends of the battery cell module located on the supporting platform from both ends.

[0026] The two battery cell module squeezing mechanisms squeeze the two ends of the battery cell module on the supporting platform from both ends, so that the battery cell module is in a squeezed state, so that the steel strip can be smoothly put on the battery cell module.

[0027] In some embodiments, the battery cell module extrusion device also includes two second driving members corresponding one to one to the two battery cell module extrusion mechanisms; the two second driving members are configured to synchronously drive the two battery cell module extrusion mechanisms to slide toward the supporting platform, so that the two battery cell module extrusion mechanisms are close to the battery cell module located on the supporting platform.

[0028] By providing the second driving member, the battery cell module extrusion mechanism is driven, so that the two extrusion mechanisms are moved closer to or farther away from the battery cell module located on the supporting platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the battery module after the steel strip is put on;

[0030] Figure 2 This is a structural schematic diagram of the battery module extrusion mechanism in an embodiment of the present application from one viewing angle;

[0031] Figure 3 This is a structural schematic diagram of the battery cell module extrusion mechanism in an embodiment of the present application from another perspective;

[0032] Figure 4 This is a schematic structural diagram of the battery cell module in an embodiment of the present application after omitting the top extrusion component;

[0033] Figure 5 Schematic diagram of the structure of the battery module extrusion device in the embodiment of the present application;

[0034] Figures 1 to 5 Included are:

[0035] Battery cell module extrusion mechanism 10;

[0036] Base 11;

[0037] Extrusion assembly 12: first driving member 121, pushing block 122, extrusion plate 123, pushing wheel 124, return spring 125, extrusion block 126, limiting wheel 127, limiting groove 128, pushing inclined surface 129;

[0038] Compression assembly 13: compression spring 131, compression plate 132;

[0039] Base 14;

[0040] Carrying platform 20;

[0041] a second driving member 30;

[0042] Battery cell module 100 , battery cell 101 , and steel strip 200 . DETAILED DESCRIPTION

[0043] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0044] like Figures 2 to 4 As shown, the battery module extrusion device 10 in the embodiment of the present application includes a base 11 and at least one (for example Figure 2 two of the) extrusion components 12.

[0045] The extrusion assembly 12 includes a first driving member 121, a pushing block 122, an extrusion plate 123, a pushing wheel 124 and a return spring 125, wherein:

[0046] The extrusion plate 123 is slidably connected to the base 11 and can slide along the first horizontal direction (such as the X-axis direction in the figure). The push wheel 124 is installed on the extrusion plate 123. One end of the return spring 125 is connected to the base 11, and the other end of the return spring 125 is connected to the extrusion plate 123. The length direction of the return spring 125 extends along the first horizontal direction.

[0047] The first driving member 121 is disposed on the base 11. The pushing block 122 is slidably connected to the base 11 and is connected to the driving end of the first driving member 121. The pushing block 122 is formed with a pushing inclined surface 129. The pushing wheel 124 on the extrusion plate 123 presses against the pushing inclined surface 129. The first driving member 121 is used to drive the pushing block 122 to slide back and forth along a second horizontal direction (the Y-axis direction in the figure) so that the pushing block 122 switches between a pushing position and a released position. The second horizontal direction is perpendicular to the first horizontal direction.

[0048] When the first driving member 121 drives the pushing block 122 to slide from the release position toward the pushing position, the pushing inclined surface 129 of the pushing block 122 pushes the extrusion plate 123 to slide toward the battery cell module along the first horizontal direction via the pushing wheel 124, so as to drive the extrusion end of the extrusion plate 123 to squeeze the end of the battery cell module. At the same time, the return spring 125 extends under the pull of the extrusion plate 123.

[0049] When the first driving member 121 drives the pushing block 122 to slide from the pushing position toward the releasing position, the pushing inclined surface 129 of the pushing block 122 gradually separates from the pushing wheel 124, and the return spring 125 loses pressure and retracts, thereby driving the extrusion plate 123 away from the battery module along the first horizontal direction.

[0050] In the battery cell module extrusion mechanism in the embodiment of the present application, the first driving member 121 pushes the pushing block 122 perpendicularly to the length direction of the battery cell module, and the pushing block 122 pushes the push wheel 124 on the extrusion plate 123 via the pushing inclined surface 129 thereon, thereby pushing the extrusion plate 123 to extrude the battery cell module parallel to the length direction of the battery cell module.

[0051] Compared to existing cell module extrusion mechanisms, the first drive member of the cell module extrusion mechanism in the present embodiment achieves the same extrusion effect on the cell module with a smaller thrust output, thereby reducing equipment costs. Furthermore, the reaction force of the cell module is primarily applied to the base, reducing the reaction force from the cell module to the first drive member, thereby reducing the risk of damage to the first drive member and extending the service life of the cell module extrusion mechanism.

[0052] The first driving member 121 can adopt various existing linear driving modules capable of driving the pushing block to slide back and forth in the second horizontal direction, such as a cylinder driving module or a screw motor driving module.

[0053] like Figure 2 As shown, optionally, at least two extrusion blocks 126 are provided at intervals along the second horizontal direction at the extrusion end of the extrusion plate 123, for example Figure 2 At least two extrusion blocks 126 cooperate to extrude the end of the battery cell module. By arranging more than two extrusion blocks on the extrusion end of the extrusion plate 123, the extrusion end of the extrusion plate 123 can extrude the end of the battery cell module from two or more different positions, thereby improving the force uniformity of the end of the battery cell module and preventing the local end of the battery cell module from being over-pressed, causing the battery cell to be damaged. In addition, the gap between the extrusion blocks 126 achieves avoidance of the steel belt device, so that the steel belt device can smoothly push the steel belt downward, so that the steel belt reaches the preset position.

[0054] like Figure 3As shown, optionally, a limiting wheel 127 is provided at the bottom of the pushing block 122, and a limiting slot 128 is provided on the side of the extrusion plate 123 facing the pushing block 122. When the extrusion plate 123 slides away from the battery module in the first horizontal direction to reset, the limiting wheel 127 abuts against the limiting slot 128, thereby maintaining a predetermined distance between the pushing wheel 124 and the base 11. This arrangement prevents the pushing wheel 124 from being too close to the base 11, which would prevent the pushing block 122 from properly pushing the pushing wheel 124.

[0055] Optionally, the cell module extrusion mechanism in the embodiment of the present application includes at least two groups of extrusion components 12 arranged on the base 11 at intervals in the vertical direction, for example Figures 2 to 4 At least two groups of extrusion assemblies 12 extrude the ends of the battery cell module from different extrusion positions.

[0056] Since two or more extrusion assemblies 12 are arranged at intervals along the vertical direction, and the extrusion plates 123 of each extrusion assembly 12 can independently move toward or away from the battery cell module, during the steel strip application process, when the extrusion plate 123 of one extrusion assembly 12 disengages from the battery cell module to avoid the steel strip, the extrusion plates 123 of the other extrusion assemblies 12 continue to press the end of the battery cell module, thereby keeping the battery cell module always compressed, ultimately ensuring that the steel strip can slide smoothly along the side wall of the battery cell module and finally reach the target installation position.

[0057] In addition, using multiple extrusion assemblies 12 to extrude the battery cell module simultaneously can further reduce the burden on the first driving member 121 of a single extrusion assembly 12 and extend the service life of the first driving member 121 .

[0058] Continue to refer Figures 2 to 4 As shown, the cell module compression mechanism in the embodiment of the present application optionally further includes a pressing assembly 13 located below the pressing assembly 12. The pressing assembly 13 is used to continuously compress the ends of the cell module. That is, during the entire steel strip wrapping process, the pressing assembly 13 always maintains compression on the ends of the cell module, thereby ensuring that the cell module is fixed.

[0059] In an alternative embodiment, if Figure 3 As shown, the battery cell module extrusion mechanism 10 in the embodiment of the present application further includes a base 14, on which the base 11 is slidably mounted along a first horizontal direction. The clamping assembly 13 includes a clamping plate 132 and a clamping spring 131. The clamping plate 132 is mounted on the bottom end of the base 11 and extends along the first horizontal direction. The first end of the clamping spring 131 is connected to the base 14, and the second end of the clamping spring 131 is connected to the base 11. The clamping end of the clamping plate 132 on the base 11 is continuously pressed against the end of the battery cell module under the pressure of the clamping spring 131.

[0060] Optional, such as Figure 3 As shown, when the pushing block 122 is in the releasing position, the pressing end of the pressing plate 132 protrudes from the extruding end of the extruding plate 123 in the first horizontal direction.

[0061] With this arrangement, when the base 14 moves toward the cell module to the target position, the pressing end of the pressing plate 132, under the pressure of the pressing spring 131, presses against the end of the cell module, thereby securing the cell module from one end. At this time, the pressing end of the squeezing plate 123 does not contact the cell module, and there is a movable space between the squeezing plate 123 and the cell module. In other words, the squeezing plate 123 can move toward the cell module to squeeze the end of the cell module, and move away from the cell module to detach from the end of the cell module.

[0062] In another optional embodiment, the base 14 is not provided, and the compression plate 132 is slidably connected to the base 11 and can slide along the first horizontal direction. The first end of the compression spring 131 is connected to the base 11, and the second end of the compression spring 131 is connected to the compression plate 132. When the base 11 moves toward the battery cell module to the target position, the compression end of the compression plate 132 is pressed against the end of the battery cell module under the pressure of the compression spring 131.

[0063] This application also provides a battery module extrusion device, such as Figure 5 As shown, the cell module extrusion device in the embodiment of the present application includes a carrier 20 and two cell module extrusion mechanisms 10 as in any of the above embodiments, wherein: the carrier 20 is used to carry the cell module 100 to be extruded. The two cell module extrusion mechanisms 10 are respectively arranged on both sides of the carrier 20 in the longitudinal direction (X-axis direction in the figure), and the two cell module extrusion mechanisms 10 are used to squeeze the two ends of the cell module 100 located on the carrier 20 from both ends.

[0064] The two cell module squeezing mechanisms 10 squeeze the two ends of the cell module 100 on the carrier 20 from both ends, so that the cell module 100 is in a squeezed state, so that the steel strip 200 can be smoothly put on the cell module 100.

[0065] Optionally, the battery cell module extrusion device in the embodiment of the present application further includes two second driving members 30 corresponding one to one with the two battery cell module extrusion mechanisms. The two second driving members 30 are configured to synchronously drive the two battery cell module extrusion mechanisms 10 to slide toward the carrier 20, so that the two battery cell module extrusion mechanisms 10 are close to the battery cell module located on the carrier, and finally the two battery cell module extrusion mechanisms 10 extrude the battery cell module from both ends. After the steel strip is put on the battery cell module, the two second driving members 30 can also synchronously drive the two battery cell module extrusion mechanisms 10 to slide away from the carrier 20, so that the unloading mechanism can easily move the battery cell module from the carrier 20.

[0066] The second driving member 30 may be an existing linear driving module capable of driving the battery cell module extrusion mechanism 10 to slide toward or away from the carrier platform 20 , such as a cylinder driving module or a screw motor driving module.

[0067] The present application has been described above in sufficient detail with certain specificity. Those skilled in the art will understand that the descriptions in the examples are merely illustrative, and that all modifications made without departing from the true spirit and scope of the present application are intended to be within the scope of protection of the present application. The scope of protection claimed in the present application is defined by the claims, not by the description in the examples.

Claims

1. A battery module extrusion mechanism, characterized in that: The battery module extrusion mechanism includes a base and at least one extrusion assembly, and the extrusion assembly includes a first driving member, a pushing block, an extrusion plate, a pushing wheel and a return spring, wherein: The extrusion plate is slidably connected to the base and can slide along a first horizontal direction, the push wheel is mounted on the extrusion plate, one end of the return spring is connected to the base, and the other end of the return spring is connected to the extrusion plate, and the length direction of the return spring extends along the first horizontal direction; The first driving member is provided on the base, the pushing block is slidably connected to the base and is connected to the driving end of the first driving member, a pushing inclined surface is formed on the pushing block, the pushing wheel on the extrusion plate is pressed against the pushing inclined surface, and the first driving member is used to drive the pushing block to slide back and forth along a second horizontal direction so that the pushing block switches between a pushing position and a release position, and the second horizontal direction is perpendicular to the first horizontal direction; When the first driving member drives the pushing block to slide from the release position toward the pushing position, the pushing inclined surface of the pushing block pushes the extrusion plate to slide toward the battery cell module along the first horizontal direction via the pushing wheel, so as to drive the extrusion end of the extrusion plate to squeeze the end of the battery cell module, and the return spring extends under the pulling of the extrusion plate; When the first driving member drives the pushing block to slide from the pushing position toward the releasing position, the pushing inclined surface of the pushing block gradually separates from the pushing wheel, and the return spring loses pressure and retracts to drive the extrusion plate away from the battery cell module along the first horizontal direction.

2. The battery module extrusion mechanism according to claim 1, characterized in that: At least two extrusion blocks are arranged at intervals on the extrusion end of the extrusion plate along the second horizontal direction, and the at least two extrusion blocks cooperate to extrude the end of the battery cell module.

3. The battery cell module extrusion mechanism according to claim 1, characterized in that: A limiting wheel is provided at the bottom of the pushing block, and a limiting groove is provided on the side of the extrusion plate facing the pushing block; When the extrusion plate slides away from the battery module along the first horizontal direction to reset, the limiting wheel abuts against the limiting groove, so that a predetermined distance is maintained between the pushing wheel and the base.

4. The battery module extrusion mechanism according to claim 1, characterized in that: The battery cell module extrusion mechanism includes at least two groups of extrusion assemblies arranged on the base at intervals along the vertical direction, and the at least two groups of extrusion assemblies extrude the ends of the battery cell module from different extrusion positions.

5. The battery module extrusion mechanism according to claim 1, characterized in that: The battery cell module extrusion mechanism further includes a pressing assembly located below the extrusion assembly, and the pressing assembly is used to continuously press the end of the battery cell module.

6. The battery cell module extrusion mechanism according to claim 5, characterized in that: The pressing assembly includes a pressing spring and a pressing plate, wherein: The pressing plate is slidably connected to the base and can slide along the first horizontal direction; The first end of the compression spring is connected to the base, and the second end of the compression spring is connected to the compression plate. The compression end of the compression plate is continuously compressed on the end of the battery cell module under the pressure of the compression spring.

7. The battery module extrusion mechanism according to claim 5, characterized in that: The battery module extrusion mechanism further includes a base, and the base is slidably mounted on the base along a first horizontal direction; The clamping assembly includes a clamping plate and a clamping spring. The clamping plate is installed at the bottom end of the base and extends along the first horizontal direction. The first end of the clamping spring is connected to the base, and the second end of the clamping spring is connected to the base. The clamping end of the clamping plate on the base is continuously pressed against the end of the battery cell module under the pressure of the clamping spring.

8. The battery cell module extrusion mechanism according to claim 7, characterized in that: When the pushing block is in the releasing position, the pressing end of the pressing plate protrudes from the extruding end of the extruding plate in the first horizontal direction.

9. A battery module extrusion device, characterized in that: The battery cell module extrusion device comprises a supporting platform and two battery cell module extrusion mechanisms according to any one of claims 1 to 8, wherein: The carrying platform is used to carry the battery core module to be extruded; The two battery cell module squeezing mechanisms are respectively arranged on both sides of the length direction of the supporting platform, and the two battery cell module squeezing mechanisms are used to squeeze the two ends of the battery cell module located on the supporting platform from both ends.

10. The battery module extrusion device according to claim 9, characterized in that: The battery cell module extrusion device further includes two second driving members corresponding one to one to the two battery cell module extrusion mechanisms; The two second driving members are configured to synchronously drive the two battery cell module extrusion mechanisms to slide toward the carrying platform, so that the two battery cell module extrusion mechanisms are close to the battery cell module located on the carrying platform.

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