Battery pack extrusion device

Abstract

The utility model provides a battery pack squeezing device which comprises a machine table and a squeezing mechanism arranged on the machine table, the squeezing mechanism comprises a bottom plate, two sets of squeezing components parallel to each other are arranged on the bottom plate, and adjusting components are arranged between the squeezing components and the bottom plate. The distance adjusting device is used for adjusting the distance between every two adjacent extrusion components, and a partition plate is arranged between the two extrusion components. Through the mode, the pre-stacked battery pack is extruded, so that the primary batteries in the battery pack are bonded more tightly.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pack assembly, in particular to a battery pack extrusion device. Background Art

[0002] As environmental and energy issues become increasingly severe, low-carbon and environmentally friendly energy has become an inevitable choice for future economic development. Hybrid vehicles and electric vehicles, which are representatives of new energy vehicles, have also gradually developed and gained recognition from consumers and support from the government. Power battery modules are the main power source for new energy vehicles, as well as the main components and key technologies of electric vehicles.

[0003] The most notable feature of power battery modules in the application of electric vehicles and energy storage power stations is modular assembly, that is, a number of single batteries are assembled into battery packs, and then multiple battery packs are assembled in series / parallel into battery modules. Therefore, cost and reliability design is an important part of battery module design.

[0004] Among them, the battery pack includes a number of single cells, and two adjacent single cells are connected by double-sided tape. The battery pack is fixed as a whole by a steel ring. In the specific assembly process, double-sided tape is first adhered to one side of several single cells, and then several single cells are pre-stacked to adhere them as a whole, forming a cohesive whole. After the end plates are placed on both sides of the whole, they are tied and fixed with steel belts to form a battery pack. However, in the process of pre-stacking with double-sided tape, it is easy for two adjacent single cells to be loosely adhered. In the later transportation or processing process, the battery pack structure is unstable and easy to fall apart, and needs to be reworked and re-pasted, resulting in overall low work efficiency. Utility Model Content

[0005] In order to solve the above problems, the utility model proposes a battery pack extrusion device which has a simple structure, strengthens the bonding force of the battery pack, and effectively improves the working efficiency.

[0006] The main contents of the utility model include: a machine platform, an extrusion mechanism arranged on the machine platform,

[0007] The extrusion mechanism comprises a bottom plate, on which two sets of extrusion members parallel to each other are arranged, an adjusting member is arranged between the extrusion members and the bottom plate, for adjusting the distance between two adjacent extrusion members, and a partition is arranged between the two extrusion members;

[0008] The extrusion member includes a placement plate, on which a support member is arranged for placing a battery pack, one end of the support member along the length direction is provided with an end plate, and the other end is provided with an extrusion plate that can reciprocate along the length direction of the support member, and the extrusion plate is connected to the extrusion driving member.

[0009] Preferably, an extrusion slide rail is further provided between the extrusion plate and the placement plate. The extrusion slide rail is provided parallel to one side of the support member and extends along the length direction of the placement plate. The bottom of the extrusion plate is slidably provided on the placement plate through a slider.

[0010] Preferably, the adjusting member comprises an adjusting cylinder arranged on a side of the placement plate away from the partition, and an output end of the adjusting cylinder is connected to the placement plate for driving the placement plate to move in a direction away from the partition.

[0011] Preferably, the adjusting member further comprises an adjusting slide rail, the adjusting slide rail extends from the direction of the partition to a side of the extruding member away from the partition, and the placement plate is slidably disposed on the adjusting slide rail via a slider.

[0012] Preferably, a limiting member is provided on the bottom plate, and the limiting member is arranged on a side of the placement plate away from the partition plate, and a sensor is arranged on the corresponding side of the placement plate.

[0013] Preferably, a transmission mechanism is also provided on the machine platform, the extrusion mechanism is slidably arranged on the transmission mechanism, the transmission mechanism includes a gear shaft, the extrusion mechanism includes a rotating motor placed on the bottom plate, the output end of the rotating motor is connected to a gear, and the gear is meshed with the gear shaft.

[0014] Preferably, the transmission mechanism further comprises a transmission slide rail arranged parallel to one side of the gear shaft, and the bottom of the base plate is slidably arranged on the transmission slide rail via a plurality of sliding blocks.

[0015] Preferably, the extrusion drive member includes a first servo motor arranged at the end of the support member, the output end of the first servo motor is connected to a screw rod, the screw rod and the support member are parallel to each other, and the bottom of the extrusion plate is threadedly connected to the screw rod.

[0016] The beneficial effects of the utility model are as follows: the extrusion plate is pushed by the extrusion driving member, so that one end of the pre-stacked battery pack abuts against the end plate, and the other end is subjected to the clamping force exerted by the extrusion plate, thereby clamping the battery pack and making the batteries therein adhere more closely to each other; the distance between two adjacent extrusion members is adjusted by an adjusting member to be suitable for battery packs of different models and sizes, and the applicability is higher; and a transmission component is used to load and unload a plurality of groups of extrusion mechanisms, thereby effectively improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a preferred embodiment;

[0018] Figure 2This is a schematic diagram of the three-dimensional structure of an extrusion mechanism in a preferred embodiment;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of an extruded component in a preferred embodiment;

[0020] Reference numerals:

[0021] 1. Machine;

[0022] 2. Extrusion mechanism; 21. Bottom plate; 22. Extrusion member; 221. Placement plate; 222. End plate; 223. Support member; 224. Extrusion plate; 225. Extrusion drive member; 226. Extrusion slide rail; 23. Adjustment member; 231. Adjustment cylinder; 232. Adjustment slide rail; 233. Limiting member; 234. Sensor; 24. Partition plate;

[0023] 3. Transmission mechanism; 31. Gear shaft; 32. Rotating motor; 33. Transmission slide rail. DETAILED DESCRIPTION

[0024] The technical solution protected by the utility model is described in detail below with reference to the accompanying drawings.

[0025] like Figure 1 As shown, the present application provides a battery pack extrusion device, which includes a machine platform 1, on which an extrusion mechanism 2 is provided for extruding battery packs that are initially stacked and pasted to each other, so that the battery packs are more firmly pasted.

[0026] like Figure 1-3 As shown, the extrusion mechanism 2 includes a bottom plate 21 placed on the machine 1, and two groups of mutually parallel extrusion members 22 are arranged on the bottom plate 21. An adjustment member 23 is arranged between the extrusion members 22 and the bottom plate 21, which can be used to adjust the distance between two adjacent groups of extrusion members 22 to adapt to battery packs of different sizes. A partition 24 is arranged between the two extrusion members 22 to separate the two adjacent extrusion members 22.

[0027] like Figure 1-3As shown, the extrusion member 22 includes a placement plate 221, on which a support member 223 is disposed. The battery pack can be placed on the support member 223 after being picked up and carried by a mechanical gripper. An end plate 222 is fixedly disposed at one end of the support member 223 extending in the length direction, and an extrusion plate 224 that can reciprocate along the length direction of the support member 223 is disposed at the other end. The extrusion plate 224 is connected to the output end of the extrusion drive member 225. An extrusion area is formed between the extrusion plate 224 and the end plate 222. The external manipulator places the battery pack in the extrusion area, and the extrusion drive member 225 pushes the extrusion plate 224 to move toward the end plate 222 until one end of the battery pack abuts against the end plate 222, and the other end is subjected to the extrusion force applied by the extrusion drive member 225 to one end of the battery pack through the extrusion plate 224, so that the single batteries can be pressed against each other. Preferably, an extrusion rail 226 is provided parallel to the side of the support member 223, and the extrusion rail 226 extends along the length direction of the placement plate 221. The extrusion plate 224 is slidably provided on the extrusion rail 226 through a slider, which can improve the stability of the extrusion plate 224 during the pushing process.

[0028] like Figure 1-3 As shown, in this embodiment, the extrusion drive member 225 includes a first servo motor, the output end of the first servo motor is connected to a screw rod, the screw rod is parallel to the support member 223 and extends to the front side of the end plate 222, and the extrusion plate 224 is connected to the screw rod by a thread. The first servo motor drives the screw rod to rotate, thereby realizing the forward or backward movement of the extrusion plate 224.

[0029] like Figure 1-3 As shown, the adjusting component 23 includes an adjusting cylinder 231, and the adjusting cylinder 231 is correspondingly arranged on the side of the placement plate 221 away from the partition 24. The output end of the adjusting cylinder 231 is connected to the placement plate 221. The adjusting cylinder 231 drives the placement plate 221 to move away from the partition 24, thereby increasing the distance between the two extrusion components 22. It can be applied to battery packs of different sizes to expand the use range of the extrusion device. It has high applicability and a flexible and convenient adjustment process.

[0030] like Figure 1-3 As shown, the adjusting member 23 also includes an adjusting rail 232, which extends from the direction of the partition 24 to the side of the extrusion member 22 away from the partition 24, and the placement plate 221 is slidably arranged on the adjusting rail 232 through a slider. When the adjusting cylinder 231 pushes the placement plate 221 to slide, the placement plate 221 slides along the adjusting rail 232, which can effectively enhance the stability during the sliding process and maintain the consistency of the moving direction of the extrusion member 22. Preferably, a limit member 233 is provided on the bottom plate 21, which is correspondingly fixed to the side of the placement plate 221 away from the partition 24, and is used to control the sliding stop position of the extrusion member 22. Preferably, a sensor 234 is arranged on the corresponding side of the placement plate 221, which is used to detect the moving position of the extrusion member 22.

[0031] like Figure 1-3 As shown, the extrusion mechanism 2 is arranged on the machine 1 through the transmission mechanism 3, and the transmission mechanism 3 is used to transmit the extrusion mechanism 2 from the loading side of the machine 1 to the unloading side, so as to facilitate the manipulators on both sides to carry them separately. Preferably, a plurality of groups of extrusion mechanisms 2 are correspondingly arranged on the machine 1, and each group of extrusion mechanisms 2 is respectively arranged on the transmission mechanism 3, and the extrusion mechanisms 2 are alternately loaded and unloaded by the transmission mechanism 3, so as to effectively improve the work efficiency.

[0032] like Figure 1-3 As shown, the transmission mechanism 3 includes a gear shaft 31 placed on the machine 1, the gear shaft 31 extends from the loading end of the machine 1 to the unloading end of the machine, and a rotating motor 32 is correspondingly arranged on the bottom plate 21. The output end of the rotating motor 32 passes downward through the bottom plate 21 and is connected to a gear (not shown), and the gear and the gear shaft 31 are meshed with each other. A transmission slide rail 33 is also correspondingly arranged on the machine 1, and the transmission slide rail 33 is parallel to the gear shaft 31. The bottom plate 21 is slidably arranged on the transmission slide rail 33 through a plurality of sliders, which guides the sliding process of the bottom plate 21 and enhances its stability.

[0033] Working principle:

[0034] The loading robot grabs the battery pack that has completed the pre-stacking action, and moves it to be placed on the support member 223 on the extrusion member 22. The extrusion drive member 225 pushes the extrusion plate 224 to move toward the end plate 222. The extrusion plate 224 pushes the battery pack to move synchronously until one end of the extrusion plate 224 abuts against the end plate 222. The extrusion plate 224 continuously applies lateral extrusion force to the battery pack, so that the battery packs are more tightly bonded to each other.

[0035] The rotation motor 32 drives the gear to rotate, and the gear meshes with the gear shaft 31, driving the extrusion mechanism 2 to slide on the transmission slide rail 33, and transmitting the extruded battery pack to the unloading end of the machine 1.

[0036] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, 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 pack extrusion device, characterized in that: Mainly include: A machine platform, an extrusion mechanism disposed on the machine platform, The extrusion mechanism comprises a bottom plate, on which two sets of extrusion members parallel to each other are arranged, an adjusting member is arranged between the extrusion members and the bottom plate, for adjusting the distance between two adjacent extrusion members, and a partition is arranged between the two extrusion members; The extrusion member includes a placement plate, on which a support member is arranged for placing a battery pack, one end of the support member along the length direction is provided with an end plate, and the other end is provided with an extrusion plate that can reciprocate along the length direction of the support member, and the extrusion plate is connected to the extrusion driving member.

2. A battery pack extrusion device according to claim 1, characterized in that: An extrusion slide rail is also provided between the extrusion plate and the placement plate. The extrusion slide rail is arranged parallel to one side of the support member and extends along the length direction of the placement plate. The bottom of the extrusion plate is slidably arranged on the placement plate through a slider.

3. A battery pack extrusion device according to claim 1, characterized in that: The adjusting component comprises an adjusting cylinder arranged on a side of the placement plate away from the partition, and an output end of the adjusting cylinder is connected to the placement plate to drive the placement plate to move in a direction away from the partition.

4. A battery pack extrusion device according to claim 3, characterized in that: The adjusting member further comprises an adjusting slide rail, wherein the adjusting slide rail extends from the partition plate to a side of the extruding member away from the partition plate, and the placement plate is slidably arranged on the adjusting slide rail via a slider.

5. A battery pack extrusion device according to claim 4, characterized in that: A limiting member is arranged on the bottom plate, and the limiting member is arranged on a side of the placement plate away from the partition plate, and a sensor is arranged on the corresponding side of the placement plate.

6. A battery pack extrusion device according to claim 1, characterized in that: The machine platform is also provided with a transmission mechanism, the extrusion mechanism is slidably arranged on the transmission mechanism, the transmission mechanism includes a gear shaft, the extrusion mechanism includes a rotating motor placed on the bottom plate, the output end of the rotating motor is connected to a gear, and the gear is meshed with the gear shaft.

7. A battery pack extrusion device according to claim 6, characterized in that: The transmission mechanism also includes a transmission slide rail arranged in parallel on one side of the gear shaft, and the bottom of the base plate is slidably arranged on the transmission slide rail through a plurality of sliding blocks.

8. The battery pack extrusion device according to claim 1, characterized in that: The extrusion drive member includes a first servo motor disposed at the end of the support member, the output end of the first servo motor is connected to a screw rod, the screw rod and the support member are parallel to each other, and the bottom of the extrusion plate is threadedly connected to the screw rod.

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