Battery cell restraining device

Abstract

The application provides an electric core restraining device, and relates to the technical field of batteries. The device comprises a first driving module, a second driving module and a fixed compression module; the first driving module and the second driving module are arranged in parallel relative to each other; the fixed compression module is located between the first driving module and the second driving module and is fixedly connected with the first driving module and the second driving module respectively; the fixed compression module comprises at least one connecting plate and at least one protruding piece; the at least one protruding piece is arranged on the connecting plate; wherein the first driving module and the second driving module are configured to be driven cooperatively to drive the connecting plate to move towards the tray direction and to limit the displacement of the electric core in the tray based on the contact between the protruding piece and the electric core. The connecting plate is driven to move downwards by the driving module so that the protruding piece directly contacts the electric core in the tray, the electric core is limited in multiple directions, the electric core is not prone to slipping in the tray, and thus the restraining effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, in particular to a battery cell restraining device. BACKGROUND

[0002] With the development of the new energy industry, new energy vehicles are constantly updated and iterated. Among them, the most critical automobile parts, batteries, are also constantly updated and replaced as the vehicle model is adjusted, promoting the battery industry to develop towards a more intelligent and automated direction.

[0003] When the battery cell is transported and turned on the logistics line, it generally needs to be placed on a restraining tray. The restraining tray is provided with multiple sets of restraining structures, which restrain each battery cell through the restraining structures, and then perform subsequent transportation and detection operations.

[0004] However, in the prior art, when the battery cell moves or turns on the conveying line, due to the blocking, acceleration and deceleration, and centrifugal force of the tray on the conveying line, the contact area between the battery cell and the clamping column is small, which causes the battery cell to slide in the tray, resulting in poor restraining effect of the battery cell. Utility model content

[0005] The purpose of the embodiment of the present application is to provide a battery cell restraining device, which is used to drive the connecting plate downward when the battery cell needs to be restrained, so that the protruding piece directly contacts the battery cell in the tray, realizes the limiting of the battery cell in multiple directions, reduces the influence of centrifugal force on the battery cell when turning, and makes the battery cell not easy to slide in the tray, thereby improving the restraining effect.

[0006] In a first aspect, the embodiment of the present application provides a battery cell restraining device, which is used to limit the displacement of the battery cell in the tray based on contact. The device comprises a first driving module, a second driving module and a fixed compression module. The first driving module and the second driving module are arranged in parallel. The fixed compression module is located between the first driving module and the second driving module and is fixedly connected with the first driving module and the second driving module, respectively. The fixed compression module comprises at least one connecting plate and at least one protruding piece. The at least one protruding piece is arranged on the connecting plate. The first driving module and the second driving module are configured to be driven cooperatively to drive the connecting plate to move towards the tray, and to limit the displacement of the battery cell in the tray based on the contact between the protruding piece and the battery cell.

[0007] In the embodiments of the present application, the fixed pressing module is located between the first driving module and the second driving module, and is driven by the first driving module and the second driving module to drive the connecting plate on the fixed pressing module to move towards the tray, thereby improving the stability of the movement of the connecting plate. Further, the movement of the connecting plate towards the tray enables the protruding piece on the connecting plate to directly contact the battery cell in the tray, thereby achieving the limiting of the battery cell in multiple directions, reducing the influence of centrifugal force or other contact on the displacement of the battery cell when turning or being subjected to other contact intervention, and thereby preventing the battery cell from slipping in the tray, thereby improving the restraining effect.

[0008] In some embodiments, the first driving module includes a first cylinder, a first base plate, a first movable bearing, and a first support block; the first cylinder includes a first piston rod; the first support block is connected to the first base plate through the first movable bearing; the first cylinder is connected to the first base plate through the first piston rod; the first base plate is fixedly connected to the first side surface of the at least one connecting plate along the length direction of the first base plate; and the first cylinder is configured to drive the first piston rod to change the distance between the first base plate and the first cylinder.

[0009] In the embodiments of the present application, the first cylinder provides force to the first base plate, which has a longer service life and reduces the occurrence of force decay. The first support module provides support to the first base plate, thereby improving the stability of the first driving module, the stability of the movement of the connecting plate, and the contact between the protruding piece on the connecting plate and the battery cell, and improving the restraining effect.

[0010] In some embodiments, the first driving module further includes a second base plate and a first coupling; the second base plate is arranged opposite to the first base plate in the side of the first base plate close to the tray; the second base plate includes a first through hole and a second through hole; the first movable bearing passes through the first through hole to connect the first support block to the first base plate; the first piston rod passes through the second through hole to connect the first cylinder to the first base plate; and the first coupling is arranged at the connection between the first movable bearing and the first through hole to fix the second base plate.

[0011] In the embodiments of the present application, the second base plate is located between the first base plate and the first support block (the first cylinder), and is fixed by the first coupling, so that the second base plate is fixed. The second base plate can prevent the movement and deformation of the first piston rod and the first movable bearing, further improve the stability of the first driving module, the stability of the movement of the connecting plate, the contact between the protruding piece on the connecting plate and the battery cell, and the restraining effect.

[0012] In some embodiments, the first support block includes a first sub-support block and a second sub-support block; the first sub-support block, the first cylinder and the second sub-support block are arranged sequentially along the length direction of the first substrate, and the first sub-support block and the second sub-support block are equidistant from the first cylinder.

[0013] In this embodiment, two sub-support blocks are provided to support the first substrate, and the first cylinders are equally spaced between the two sub-support blocks, which further improves the stability of the first drive module, thereby improving the stability of the connecting plate movement. This allows the protrusions on the connecting plate to make better contact with the battery cell, improving the restraint effect.

[0014] In some embodiments, the second drive module includes a second cylinder, a third base plate, a second movable bearing, and a second support block; the second cylinder includes a second piston rod; the second support block is connected to the third base plate via the second movable bearing; the second cylinder is connected to the third base plate via the second piston rod; the third base plate is arranged parallel to the first base plate, and the third base plate is fixedly connected to the second side of at least one connecting plate along its length direction; the first side and the second side are opposite sides of the connecting plate; wherein the second cylinder is configured to drive the second piston rod to change the distance between the third base plate and the second cylinder.

[0015] In this embodiment, the method of providing force to the third substrate via the second cylinder results in a longer service life and reduces the occurrence of force attenuation. The second support module provides support to the third substrate, improving the stability of the second drive module, thereby enhancing the stability of the connecting plate's movement. This allows the protrusions on the connecting plate to make better contact with the battery cell, improving the restraint effect.

[0016] In some embodiments, the second drive module further includes a fourth base plate and a second coupling; the fourth base plate is arranged parallel to the third base plate on the side of the third base plate near the tray; the fourth base plate includes a third through hole and a fourth through hole; a second movable bearing passes through the third through hole to connect the second support block to the third base plate; a second piston rod passes through the fourth through hole to connect the second cylinder to the third base plate; and the second coupling is disposed at the connection between the second movable bearing and the third through hole to fix the fourth base plate.

[0017] In the embodiment of the application, since the fourth substrate is located between the third substrate and the second support block (second cylinder), and is fixed by the second coupling, the fourth substrate is stationary. The fourth substrate prevents deformation of the second piston rod and the second movable bearing, further improving the stability of the second drive module, thereby improving the stability of the connecting plate's movement. This allows the protrusions on the connecting plate to better contact the battery cell, improving the restraint effect.

[0018] In some embodiments, in the vertical direction of the first substrate, the first cylinder is connected to the lower surface of the first substrate via a first piston rod, and the first support block is connected to the lower surface of the first substrate via a first movable bearing; and the maximum stroke length of the first piston rod and the first movable bearing is not less than the maximum distance between the protrusion and the battery cell; or in the vertical direction of the third substrate, the second cylinder is connected to the lower surface of the third substrate via a second piston rod; the second support block is connected to the lower surface of the third substrate via a second movable bearing; and the maximum stroke length of the second piston rod and the second movable bearing is not less than the maximum distance between the protrusion and the battery cell.

[0019] In this embodiment, by placing the first cylinder and the first support block below the first substrate, or by placing the second cylinder and the second support block below the third substrate, the cylinder is easy to install, stable, and durable, further improving the stability of the first drive module or the second drive module, thereby improving the stability of the connecting plate movement, and enabling the protrusions on the connecting plate to better contact the battery cell, thus improving the restraint effect.

[0020] In some embodiments, at least one protrusion is sequentially arranged along the length direction of the connecting plate; in the length direction of the first substrate, the spacing between corresponding protrusions on two adjacent connecting plates is equal; in the extension direction of the connecting plate, the distance between two adjacent protrusions is determined according to the size of the battery cell; wherein the extension direction of the connecting plate is orthogonal to the length direction of the first substrate.

[0021] In this embodiment, in the length direction of the first substrate, the spacing between corresponding protrusions on two adjacent connecting plates is equal. In the extension direction of the connecting plates, the distance between two adjacent protrusions is determined according to the size of the battery cell, so that the setting position of the protrusion is adapted to the structure of the tray and the battery cell, thereby enabling better contact with the battery cell in the tray and improving the restraint effect.

[0022] In some embodiments, the fixing and clamping module further includes a cushioning material; the cushioning material is adhered to the protrusion.

[0023] This application embodiment reduces damage to the battery cell when the protrusion comes into contact with the battery cell by attaching a cushioning material to the protrusion.

[0024] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing embodiments of this application. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the first type of battery cell restraint device provided in the embodiments of this application;

[0027] Figure 2 This is a schematic diagram of the structure of the second type of battery cell restraint device provided in the embodiments of this application;

[0028] Figure 3 This is a schematic diagram of some protrusions provided in the embodiments of this application.

[0029] Icons: 10-Cell restraint device, 11-First drive module, 111-First cylinder, 112-First base plate, 113-First movable bearing, 114-First support block, 115-First piston rod, 116-Second base plate, 117-First coupling, 12-Second drive module, 121-Second cylinder, 122-Third base plate, 123-Second movable bearing, 124-Second support block, 125-Second piston rod, 126-Fourth base plate, 127-Second coupling, 13-Fixing and clamping module, 131-Connecting plate, 132-Protrusion. Detailed Implementation

[0030] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0031] It should be noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0032] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0033] With the development of the new energy industry and the continuous upgrading of new energy vehicles, the most critical automotive component, the battery, is also constantly being updated and replaced with the adjustment of vehicle models, driving the battery industry towards greater intelligence and automation. Before the battery cells are assembled, they are transported via restraint methods during the transfer process on automated logistics lines.

[0034] When battery cells are transported and turn around on the logistics line, they generally need to be placed on a restraint tray. The restraint tray is equipped with multiple restraint structures to restrain each battery cell before subsequent transportation and testing operations.

[0035] In existing technology, the battery cell is directly in contact with the clamping post of the elbow clamp. The elbow clamp applies force to the clamping post through a torsion spring, and the battery cell is thus restrained in direct contact with the clamping post. However, when the battery cell moves or turns on the conveyor line, due to the conditions of the pallet stopping, accelerating, decelerating, and centrifugal force on the conveyor line, the contact area between the battery cell and the clamping post of the elbow clamp is small, which causes the battery cell to slip within the pallet. The edges or corners of the battery cell are prone to damage such as squeezing and collision. In addition, the spring has a certain fatigue strength and short lifespan, which can easily lead to the failure of the battery cell restraint force over time.

[0036] To address the aforementioned issues, this application provides a battery cell restraint device. When it is necessary to restrain the battery cell, the device uses a drive module to move the connecting plate downwards so that the protrusion directly contacts the battery cell in the tray. This achieves multi-directional restraint of the battery cell, reduces the impact of centrifugal force on the battery cell during turning, and makes the battery cell less prone to slippage in the tray, thereby improving the restraint effect.

[0037] Figure 1 A schematic diagram of the structure of the first type of cell restraint device provided in the embodiments of this application is shown below. Figure 1 As shown, the cell restraint device 10 is used to restrict the displacement of cells in a tray based on contact. The device 10 includes a first drive module 11, a second drive module 12, and a fixing and clamping module 13. The first drive module 11 and the second drive module 12 are arranged in parallel relative to each other. The fixing and clamping module 13 is located between the first drive module 11 and the second drive module 12 and is fixedly connected to the first drive module 11 and the second drive module 12 respectively. The fixing and clamping module 13 includes at least one connecting plate 131 and at least one protrusion 132. At least one protrusion 132 is disposed on the connecting plate 131. The first drive module 11 and the second drive module 12 are configured to drive the connecting plate 131 to move towards the tray, and restrict the displacement of the cells in the tray based on the contact between the protrusion 132 and the cells.

[0038] like Figure 1As shown, the first drive module 11 and the second drive module 12 are located on the left and right sides of the fixed clamping module 13, respectively, so that the first drive module 11 and the second drive module 12 are arranged in a left-right parallel relationship.

[0039] In specific implementation, the first drive module can be powered by a cylinder or an electric motor. The specific configuration can be adapted according to the actual situation, and this application does not make any specific limitations.

[0040] The fixing and clamping module 13 includes at least one connecting plate 131, and the first drive module 11 and the second drive module 12 are configured to drive the connecting plate 131 to move towards the tray. Therefore, the connecting plate 131 can also be fixedly connected to the first drive module 11 and the second drive module 12.

[0041] The fixed connection can be a bolted connection or a welded connection. The specific configuration can be determined based on the actual situation.

[0042] The tray is located below the fixed clamping module 13.

[0043] The fixing and clamping module 13 may consist of only one connecting plate 131. When only one connecting plate 131 exists, only one battery cell can be placed in the tray. In this case, only one protrusion 132 can be provided on the connecting plate 131 to limit the displacement of the battery cell in the tray. Alternatively, two protrusions 132 can be provided along the extending direction of the connecting plate 131. In this case, the distance between the two protrusions 132 is determined according to the size of the battery cell, and is used to limit the displacement of the battery cell in the tray. The extending direction of the connecting plate 131 is orthogonal to the movement direction of the first driving module 11 (or the second driving module 12).

[0044] When two protrusions 132 are provided along the extension direction of the connecting plate 131, two battery cells can be placed in the tray accordingly, so that each protrusion 132 restricts the displacement of the corresponding battery cell.

[0045] The fixing and clamping module 12 may include multiple connecting plates 131. For example, it may include 4 connecting plates 131, 6 connecting plates 131, etc.

[0046] When there are multiple connecting plates 131, each connecting plate 131 can be arranged at equal intervals and fixedly connected to the first driving module 11 and the second driving module 12 respectively.

[0047] When there are multiple connecting plates 131, the number of protrusions 132 provided on each connecting plate 131 can be the same or different.

[0048] For example, each connecting plate 131 is provided with two protrusions 132, or some connecting plates 131 are provided with one protrusion 132, and some connecting plates 131 are provided with two or more protrusions 132.

[0049] The number of connecting plates 131 and the number of protrusions 132 can be adapted to the actual situation of the battery cells in the tray, and this application does not make specific limitations on this.

[0050] Displacement restriction refers to the use of mechanical contact to constrain the degrees of freedom (such as translation or vibration) of the battery cells in the tray by protrusions, ensuring that the battery cells maintain a preset position and posture during transportation. Therefore, restricting the displacement of the battery cells in the tray can also be called restraining the battery cells.

[0051] In this embodiment, the fixing and clamping module is located between the first driving module and the second driving module, and is driven collaboratively by the first and second driving modules to move the connecting plate on the fixing and clamping module toward the tray, thereby improving the stability of the connecting plate's movement. Furthermore, the movement of the connecting plate toward the tray allows the protrusions on the connecting plate to directly contact the battery cells within the tray, achieving multi-directional constraint on the battery cells. This reduces the impact of centrifugal force or other contact interference on the battery cell displacement during turning or other contact interventions, making it less likely for the battery cells to slip within the tray and improving the restraint effect.

[0052] Figure 2 This is a schematic diagram of the structure of the second type of cell restraint device provided in the embodiments of this application, as shown below. Figure 2 As shown, the first drive module 11 includes a first cylinder 111, a first base plate 112, a first movable bearing 113, and a first support block 114; the first cylinder 111 includes a first piston rod 115; the first support block 114 is connected to the first base plate 112 through the first movable bearing 113; the first cylinder 111 is connected to the first base plate 112 through the first piston rod 115; the first base plate 112 is fixedly connected to the first side of at least one connecting plate 131 along its length direction; wherein, the first cylinder 111 is configured to drive the first piston rod 115 to change the distance between the first base plate 112 and the first cylinder 111.

[0053] Depend on Figure 2 It is known that the fixed clamping module 13 includes multiple connecting plates 131, and in the length direction of the first substrate 112, the first side of each connecting plate 131 is fixedly connected to the first substrate 112.

[0054] The first cylinder 111 and the first support block 114 are located below the first base plate 112, and the first cylinder and the first support block are fixedly mounted on a support bracket near the logistics line.

[0055] One end of the first piston rod 115 is connected to the first cylinder 111, and the other end of the first piston rod 115 is connected to the first cylinder 111, so that the first cylinder 111 drives the first substrate 112 to move up and down by driving the first piston rod 115, thereby changing the distance between the first substrate 112 and the first cylinder 111.

[0056] Since the tray is located below the fixed clamping module 13, the first cylinder 111 drives the first piston rod 115 to move the first base plate 112 upward, so that the first base plate 112 drives the multiple connecting plates 131 away from the tray direction.

[0057] The first cylinder 111 drives the first piston rod 115 to move the first base plate 112 downward, causing the first base plate 112 to move multiple connecting plates 131 closer to the tray, so that the protrusions 132 on the connecting plates 131 restrict the displacement of the battery cells in the tray.

[0058] One end of the first movable bearing 113 is mounted on the first support block 114, and the other end of the first movable bearing 113 is mounted on the first substrate 112, so that the first support block 114 is connected to the first substrate 112 through the first movable bearing 113, thereby enabling the first substrate 114 to move smoothly up and down in the vertical direction.

[0059] It should be noted that the first cylinder 111 and the first support block 114 can also be disposed above the first base plate 112, and the first cylinder 111 and the first support block 114 can be fixedly installed on a support bracket near the logistics line.

[0060] In practice, the connecting plate 131 can be made of materials such as aluminum alloy or stainless steel.

[0061] Since the protrusion 132 needs to be in direct contact with the battery cell, the type of the protrusion 132 can be adapted to the type of battery cell.

[0062] For example, if the battery cell is a square battery cell, the protrusion 132 can be a planar protrusion; if the battery cell is a cylindrical battery cell, the protrusion 132 can be an arc-shaped protrusion; if the battery cell is a pouch or irregularly shaped battery cell, the protrusion 132 can be a multi-claw protrusion.

[0063] Figure 3 Schematic diagrams of some protrusions provided in the embodiments of this application, such as Figure 3 As shown, (a) is a planar protrusion with a planar structure on its lower surface, which contacts the battery cell; (b) is an arc-shaped protrusion with an arc-shaped structure on its lower surface, which contacts the battery cell; and (c) is a multi-claw protrusion with multiple protrusions of varying lengths on its lower surface, which contacts the battery cell.

[0064] Furthermore, different types of protrusions 132 can be made of different materials. For example, planar protrusions can be made of aluminum alloy, stainless steel or engineering plastics, arc-shaped protrusions can be made of copper alloy, polyoxymethylene or silicone, and multi-claw protrusions can be made of titanium alloy, ultra-high molecular weight polyethylene or shape memory alloy (nickel-titanium).

[0065] The first substrate 112 can also be made of materials such as aluminum alloy or stainless steel.

[0066] The first movable bearing 113 can be a linear bearing. A linear bearing is a mechanical component used to support linear motion. It is usually used in conjunction with a linear shaft (such as an optical shaft or guide rail) to enable the load to move smoothly along the linear axis, achieving high-precision, low-friction linear movement. Common linear bearings include ball linear bearings: compact in structure and suitable for light-load, high-speed applications; and roller linear bearings: with stronger load-bearing capacity and used in heavy-load or high-rigidity applications.

[0067] In this embodiment, the method of providing force to the first substrate via the first cylinder results in a longer service life and reduces the occurrence of force attenuation. The first support module provides support to the first substrate, improving the stability of the first drive module, thereby enhancing the stability of the connecting plate's movement. This allows the protrusions on the connecting plate to make better contact with the battery cell, improving the restraint effect.

[0068] Please continue reading Figure 2 The first drive module 11 further includes a second base plate 116 and a first coupling 117. The second base plate 116 is arranged parallel to the first base plate 112 on the side of the first base plate 112 near the tray. The second base plate 116 includes a first through hole and a second through hole. A first movable bearing 113 passes through the first through hole to connect the first support block 114 to the first base plate 112. A first piston rod 115 passes through the second through hole to connect the first cylinder 111 to the first base plate 112. The first coupling 117 is disposed at the connection between the first movable bearing 113 and the first through hole to fix the second base plate 116.

[0069] The second substrate 116 can be made of materials such as aluminum alloy or stainless steel. The second substrate is fixed in place.

[0070] The first coupling 117 is a mechanical device used to connect two shafts (driving shaft and driven shaft). In specific implementation, the first coupling can be a rigid coupling or an elastic coupling (such as: plum blossom coupling, spring coupling, etc.).

[0071] In this embodiment, the second substrate is located between the first substrate and the first support block (first cylinder), and is fixed by the first coupling, making the second substrate stationary. The second substrate prevents deformation of the first piston rod and the first movable bearing, further improving the stability of the first drive module, thereby enhancing the stability of the connecting plate's movement. This allows the protrusions on the connecting plate to better contact the battery cell, improving the restraint effect.

[0072] Please continue reading Figure 2 The first support block 114 includes a first sub-support block and a second sub-support block; the first sub-support block, the first cylinder 111 and the second sub-support block are arranged sequentially along the length direction of the first substrate, and the first sub-support block and the second sub-support block are at equal distances from the first cylinder.

[0073] In the specific implementation process, in order to further improve the stability of the first drive module, the embodiments of this application support the first substrate by setting two sub-support blocks and setting the first cylinder at equal intervals between the two sub-support blocks, thereby improving the stability of the connecting plate movement, so that the protrusions on the connecting plate can better contact the battery cell and improve the restraint effect.

[0074] It should be understood that the number of the first support blocks 114 can be adaptively set according to the length of the first substrate 112.

[0075] For example, if the length of the first substrate 112 is relatively long, more first support blocks 114 can be provided to improve the stability of the first driving module 11. If the length of the first substrate 112 is relatively short, only one first support block 114 can be provided for support.

[0076] It should also be noted that when there is only one first support block 114, the first support block 114 and the first cylinder 111 can be arranged sequentially along the width direction of the first base plate 112.

[0077] When there are multiple first support blocks 114, the distances between the multiple first support blocks 114 and the first cylinder 111 may not be equal.

[0078] Please continue reading Figure 2The second drive module 12 includes a second cylinder 121, a third base plate 122, a second movable bearing 124, and a second support block 124. The second cylinder 121 includes a second piston rod 125. The second support block 124 is connected to the third base plate 122 via the second movable bearing 123. The second cylinder 121 is connected to the third base plate 122 via the second piston rod 125. The third base plate 122 is arranged parallel to the first base plate 112. The third base plate 122 is fixedly connected to the second side of at least one connecting plate 131 along its length direction. The first side and the second side are opposite sides of the connecting plate. The second cylinder 121 is configured to drive the second piston rod 125 to change the distance between the third base plate 122 and the second cylinder 121.

[0079] In this embodiment, the method of providing force to the third substrate via the second cylinder results in a longer service life and reduces the occurrence of force attenuation. The second support module provides support to the third substrate, improving the stability of the second drive module, thereby enhancing the stability of the connecting plate's movement. This allows the protrusions on the connecting plate to make better contact with the battery cell, improving the restraint effect.

[0080] Please continue reading Figure 2 The second drive module 12 further includes a fourth base plate 126 and a second coupling 127. On the side of the third base plate 122 near the tray, the fourth base plate 126 is arranged parallel to the third base plate 122. The fourth base plate 126 includes a third through hole and a fourth through hole. A second movable bearing 123 passes through the third through hole to connect the second support block 124 to the third base plate 122. A second piston rod 125 passes through the fourth through hole to connect the second cylinder 121 to the third base plate 122. The second coupling 127 is disposed at the connection between the second movable bearing 123 and the third through hole to fix the fourth base plate 126.

[0081] In this embodiment, the fourth substrate is located between the third substrate and the second support block (second cylinder), and is fixed by the second coupling, making it stationary. The fourth substrate prevents deformation of the second piston rod and the second movable bearing, further improving the stability of the second drive module. This, in turn, improves the stability of the connecting plate's movement, allowing the protrusions on the connecting plate to better contact the battery cell and enhance the restraint effect.

[0082] It should be noted that the second support block 124 may also include multiple blocks.

[0083] For the specific implementation of the second driving module 12, please refer to the embodiment of the first driving module 11 described above, which will not be repeated here.

[0084] Please continue reading Figure 2In the vertical direction of the first substrate 112, the first cylinder 111 is connected to the lower surface of the first substrate 112 via the first piston rod 115, and the first support block 114 is connected to the lower surface of the first substrate 112 via the first movable bearing 113; and the maximum stroke length of the first piston rod 114 and the first movable bearing 113 is not less than the maximum distance between the protrusion 132 and the battery cell; or in the vertical direction of the third substrate 122, the second cylinder 121 is connected to the lower surface of the third substrate 122 via the second piston rod 125; the second support block 124 is connected to the lower surface of the third substrate 122 via the second movable bearing 123; and the maximum stroke length of the second piston rod 125 and the second movable bearing 123 is not less than the maximum distance between the protrusion 132 and the battery cell.

[0085] In this embodiment, by placing the first cylinder and the first support block below the first substrate, or by placing the second cylinder and the second support block below the third substrate, the cylinder is easy to install, stable, and durable, further improving the stability of the first drive module or the second drive module, thereby improving the stability of the connecting plate movement, and enabling the protrusions on the connecting plate to better contact the battery cell, thus improving the restraint effect.

[0086] Please continue reading Figure 2 In this embodiment, at least one protrusion 132 is sequentially arranged along the length direction of the connecting plate; in the length direction of the first substrate 112, the spacing between corresponding protrusions 132 on two adjacent connecting plates 131 is equal; in the extension direction of the connecting plate 131, the distance between two adjacent protrusions 132 is determined according to the size of the battery cell; wherein the extension direction of the connecting plate 131 is orthogonal to the length direction of the first substrate 112.

[0087] In this embodiment, in the length direction of the first substrate, the spacing between corresponding protrusions on two adjacent connecting plates is equal. In the extension direction of the connecting plates, the distance between two adjacent protrusions is determined according to the size of the battery cell, so that the setting position of the protrusion is adapted to the structure of the tray and the battery cell, thereby enabling better contact with the battery cell in the tray and improving the restraint effect.

[0088] In some embodiments, the fixing and clamping module further includes a cushioning material; the cushioning material is adhered to the protrusion.

[0089] In practice, the cushioning material can be foam or silicone, etc.

[0090] This application embodiment reduces damage to the battery cell when the protrusion comes into contact with the battery cell by attaching a cushioning material to the protrusion.

[0091] In some embodiments, at the turning point of the battery cell transport line, a battery cell restraint device 10 provided in this application embodiment is provided on a rotating table. Figure 2 It is known that the battery cell restraint device 10 includes a first drive module 11, a second drive module 12, and a fixing and clamping module 13.

[0092] The first drive module 11 and the second drive module 12 are arranged parallel to each other on the left and right sides of the fixed clamping module 13. The first drive module 11 includes a first cylinder 111, a first base plate 112, a first movable bearing 113, a first support block 114, a second base plate 116, and a first coupling 117. The second drive module 12 includes a second cylinder 121, a third base plate 122, a second movable bearing 124, a second support block 124, a fourth base plate 126, and a second coupling 127. The fixed clamping module 13 includes four connecting plates 131 and eight protrusions 132. Each connecting plate 131 has two protrusions 132, and each protrusion 132 is covered with a layer of foam. Each protrusion is a planar protrusion.

[0093] The first cylinder 111 and the second cylinder 121 operate simultaneously to move the first substrate 112 and the third substrate 122, thereby driving the movement of the plurality of connecting plates 131 connected to the first substrate 112 and the third substrate 122.

[0094] When the first substrate 112 and the third substrate 122 drive the multiple connecting plates 131 to move closer to the tray, the multiple protrusions 132 on the multiple connecting plates 131 directly contact the battery cells in the tray to restrict the displacement of the battery cells in the tray and achieve the purpose of confining the battery cells.

[0095] In the embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the displayed or discussed mutual couplings, direct couplings, or communication connections may be through some communication interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0096] Furthermore, the units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0097] Furthermore, the functional modules in the various embodiments of this application can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0098] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A battery cell restraint device, characterized in that, The cell restraint device is used to restrict the displacement of the cells in the tray based on contact. The device includes a first drive module, a second drive module, and a fixing and clamping module; The first driving module and the second driving module are arranged in parallel relative to each other; The fixed clamping module is located between the first drive module and the second drive module, and is fixedly connected to the first drive module and the second drive module respectively; The fixing and clamping module includes at least one connecting plate and at least one protrusion; the at least one protrusion is disposed on the connecting plate; The first drive module and the second drive module are configured to drive the connecting plate toward the tray, and restrict the displacement of the battery cell in the tray based on the contact between the protrusion and the battery cell.

2. The apparatus according to claim 1, characterized in that, in, The first drive module includes a first cylinder, a first base plate, a first movable bearing, and a first support block; the first cylinder includes a first piston rod; The first support block is connected to the first base plate via the first movable bearing; the first cylinder is connected to the first base plate via the first piston rod. The first substrate is fixedly connected to the first side of the at least one connecting plate along its length direction; The first cylinder is configured to drive the first piston rod to change the distance between the first substrate and the first cylinder.

3. The apparatus according to claim 2, characterized in that, in, The first drive module further includes a second substrate and a first coupling; on the side of the first substrate near the tray, the second substrate is arranged parallel to the first substrate; the second substrate includes a first through hole and a second through hole; The first movable bearing passes through the first through hole, connecting the first support block to the first substrate; The first piston rod passes through the second through hole, connecting the first cylinder to the first base plate; The first coupling is located at the connection between the first movable bearing and the first through hole to fix the second substrate.

4. The apparatus according to claim 2, characterized in that, in, The first support block includes a first sub-support block and a second sub-support block; The first sub-support block, the first cylinder, and the second sub-support block are arranged sequentially along the length of the first substrate, and the first sub-support block and the second sub-support block are equidistant from the first cylinder.

5. The apparatus according to claim 2, characterized in that, in, The second drive module includes a second cylinder, a third base plate, a second movable bearing, and a second support block; the second cylinder includes a second piston rod. The second support block is connected to the third base plate via the second movable bearing; the second cylinder is connected to the third base plate via the second piston rod. The third substrate is arranged parallel to the first substrate, and the third substrate is fixedly connected to the second side of the at least one connecting plate along its length direction; the first side and the second side are opposite sides of the connecting plate. The second cylinder is configured to drive the second piston rod to change the distance between the third substrate and the second cylinder.

6. The apparatus according to claim 5, characterized in that, in, The second drive module further includes a fourth base plate and a second coupling; on the side of the third base plate near the tray, the fourth base plate is arranged parallel to the third base plate; the fourth base plate includes a third through hole and a fourth through hole; The second movable bearing passes through the third through hole, connecting the second support block to the third base plate; The second piston rod passes through the fourth through hole, connecting the second cylinder to the third base plate; The second coupling is disposed at the connection between the second movable bearing and the third through hole to fix the fourth base plate.

7. The apparatus according to claim 5, characterized in that, in, In the vertical direction of the first substrate, the first cylinder is connected to the lower surface of the first substrate through the first piston rod, and the first support block is connected to the lower surface of the first substrate through the first movable bearing; and the maximum stroke length of the first piston rod and the first movable bearing is not less than the maximum distance between the protrusion and the battery cell. or In the vertical direction of the third substrate, the second cylinder is connected to the lower surface of the third substrate via the second piston rod; the second support block is connected to the lower surface of the third substrate via the second movable bearing; and the maximum stroke length of the second piston rod and the second movable bearing is not less than the maximum distance between the protrusion and the battery cell.

8. The apparatus according to any one of claims 2-7, characterized in that, in, The at least one protrusion is arranged sequentially along the length direction of the connecting plate; Along the length of the first substrate, the spacing between corresponding protrusions on two adjacent connecting plates is equal; In the extending direction of the connecting plate, the distance between two adjacent protrusions is determined according to the size of the battery cell; wherein, the extending direction of the connecting plate is orthogonal to the length direction of the first substrate.

9. The apparatus according to claim 8, characterized in that, in, The fixing and clamping module also includes a cushioning material; the cushioning material is adhered to the protrusion.

Images