Battery cell module pressing and gluing tool

Abstract

The utility model discloses a battery cell module glue pressing tool relates to the battery pack production technical field. It includes the frame of starting the supporting effect, and the both sides of frame are equipped with the positioning pin respectively, the top of frame is equipped with the counterweight for the pressure use, and the counterweight is installed on the frame through the pin shaft. The utility model discloses simple structure, and low in cost can be in effective solution current glue pressing equipment cost problem of high cost simultaneously, ensures the quality and efficiency of glue pressing operation not to be influenced.

Description

Technical Field

[0001] This utility model relates to the field of battery pack production technology, and in particular to a pressing and bonding equipment for battery pack cell modules. Background Technology

[0002] In the battery pack manufacturing process, the bonding of the cell modules after they are installed into the battery pack housing and the treatment of the consistency of the terminal height are extremely critical steps, and the adhesive pressing operation plays an indispensable role in this process.

[0003] Currently, the common method for applying adhesive to battery cell modules after they are positioned within the battery pack housing is to use adhesive bonding equipment. The process involves pre-applying structural adhesive to the module area, then applying pressure with the adhesive bonding equipment to ensure a tight bond between the bottom of the cell and the adhesive. This significantly enhances the fixation of the cell module within the battery pack housing. Simultaneously, the uniform pressure applied by the adhesive bonding equipment ensures consistent cell terminal height, thereby guaranteeing stable and reliable internal circuit connections within the battery pack.

[0004] However, existing lamination equipment has significant drawbacks. This type of equipment is typically complex in structure and technically demanding, involving multiple precision components and advanced control systems. From research and development to manufacturing, it requires substantial investment of human, material, and financial resources. Furthermore, to ensure stable operation and precise control, a professional maintenance team is needed for regular upkeep, further increasing operating costs. This makes existing lamination equipment prohibitively expensive, placing a significant economic burden on battery pack manufacturers and limiting their cost control and profit margins during production.

[0005] Against this backdrop, developing a low-cost adhesive bonding device that can effectively achieve a tight bond between the bottom of the battery cell and the structural adhesive, and ensure the adhesive bonding function, is of great practical significance. Summary of the Invention

[0006] This utility model provides a battery cell module pressing tooling. The battery cell module pressing tooling has a simple structure and low cost. It can effectively solve the problem of excessive cost of existing pressing equipment while ensuring that the quality and efficiency of pressing operation are not affected.

[0007] To solve the above problems, the technical solution adopted by this utility model is:

[0008] It includes a supporting frame with positioning pins on both sides; a counterweight for applying pressure is provided on the top of the frame, and the counterweight is mounted on the frame by a pin.

[0009] A more specific technical solution than the above-mentioned technical solution is that the bottom of the counterweight is provided with a cell pressure-resistant pad.

[0010] Furthermore, the cell pressure-resistant pad is a polyurethane pad.

[0011] Furthermore, the frame is provided with lifting rings around its perimeter for hoisting.

[0012] Furthermore, regarding the counterweight, Option 1: The counterweight consists of four pieces, which are evenly distributed on the frame.

[0013] Option 2: The counterweight consists of counterweight block 1 and counterweight block 2, which are distributed vertically; wherein, counterweight block 2 is located above counterweight block 1, and counterweight block 1 consists of four pieces, which are evenly distributed on the frame.

[0014] Furthermore, on the frame, limit blocks are respectively provided on both sides of the second counterweight.

[0015] Furthermore, the limiting block is a concave limiting block with the groove opening facing upwards, and the two ends of the counterweight block are provided with mounting rods that match the grooves of the concave limiting block.

[0016] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0017] 1. Compared with existing adhesive bonding equipment, this utility model has a simple structure, does not involve multiple precision components and advanced control systems, and significantly reduces the manpower, material resources and financial resources required from research and development to production and manufacturing; at the same time, it does not require a professional maintenance team for regular and complex maintenance and upkeep, reducing the cost of use, effectively solving the problem of excessively high costs of existing adhesive bonding equipment, alleviating the economic burden on battery pack manufacturers, and providing enterprises with greater cost control space and profit improvement potential.

[0018] 2. This utility model, by setting a counterweight above the frame, can apply pressure to tightly bond the bottom of the battery cell to the structural adhesive, thereby enhancing the fixation effect of the battery cell module in the battery pack box; at the same time, the pressure applied by the counterweight can ensure that the height of the battery cell terminals remains consistent, ensuring stable and reliable internal circuit connections of the battery pack and ensuring the quality of the adhesive bonding operation.

[0019] 3. This utility model provides a battery cell anti-pressure pad at the bottom of the counterweight, preferably a polyurethane pad. Polyurethane has good cushioning properties, which can effectively prevent the counterweight from excessively squeezing the battery cell, protect the battery cell from damage during the pressing process, and improve the product yield.

[0020] 4. This utility model provides lifting rings around the perimeter of the frame, which facilitates the lifting and handling of the adhesive bonding fixture during the production process, thereby improving the convenience and efficiency of production operations.

[0021] 5. This utility model provides a variety of counterweight design schemes, such as being composed of four evenly distributed counterweights, or being composed of counterweight one and counterweight two distributed vertically (counterweight one is composed of four evenly distributed counterweights), etc. This flexible design allows for easy adjustment of pressure distribution and magnitude according to actual production needs and pressing requirements, in order to adapt to pressing operations of battery cell modules of different specifications and models, thereby enhancing the versatility and practicality of the tooling.

[0022] 6. This utility model provides limiting blocks on both sides of the counterweight block two on the frame. The limiting blocks are concave limiting blocks with the groove opening facing upwards. The two ends of the counterweight block two are provided with mounting rods that match the grooves of the concave limiting blocks. This design can ensure that the counterweight block two is stable in position after installation and will not shake or shift during the pressing process, thus ensuring the stability and reliability of the pressing operation and further improving the pressing quality. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of Scheme 1 of this utility model.

[0024] Figure 2 This is an exploded view of Scheme 1 of this utility model.

[0025] Figure 3 This is a schematic diagram of the structure of Scheme 2 of this utility model.

[0026] Figure 4 This is an exploded view of Scheme 2 of this utility model.

[0027] Figures 1-4 In the diagram, the following components are labeled: 1 – Frame, 2 – Positioning pin, 3 – Counterweight, 3-1 – Counterweight one, 3-2 – Counterweight two, 4 – Pin, 5 – Cell anti-pressure pad, 6 – Frame lifting handle, 7 – Limiting block, 8 – Mounting rod, 9 – Battery pack housing, 10 – Lifting lug hole, 11 – Cell entry limit block, 12 – Cell module, 13 – Counterweight two lifting handle, 14 – Lifting ring. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings:

[0029] like Figure 1-2 The shown battery cell module pressing fixture includes a frame 1, which provides a stable support platform for the counterweight 3. Positioning pins 2 are provided on both sides of the frame 1, and these pins 2 engage with lifting lugs 10 on the battery pack housing 9 to define the installation position of the frame 1. The counterweight 3 is located on top of the frame 1 and is mounted on the frame 1 via pins 4 to prevent it from shifting.

[0030] A more specific technical solution to the above solution is: a cell pressure protection pad 5 is provided at the bottom of the counterweight 3. The cell pressure protection pad 5 can play a buffering and protective role during the pressing process, so as to prevent the counterweight 3 from directly contacting the cell module 12 and causing damage to the surface of the cell module 12.

[0031] Preferably, the cell pressure-resistant pad 5 is a polyurethane pad. Polyurethane pads have good elasticity, wear resistance, and impact resistance, which can ensure the cushioning effect while adapting to the needs of multiple pressing operations and extending the service life of the tooling.

[0032] Preferably, four pads can be provided on each side of the frame 1, with lifting rings 14 mounted on the pads for hoisting. This facilitates the handling and installation of the frame 1 using hoisting equipment during production, improving production efficiency and reducing the labor intensity and safety risks of manual handling. Furthermore, frame hoisting handrails 6 can be added to both sides of the frame 1, helping operators to accurately position the frame 1 before hoisting and ensuring it is in the correct posture at the moment of lifting. Additionally, during hoisting, operators can observe and adjust the frame hoisting handrails 6 to promptly correct any deviations in the frame 1, maintaining its balance and making the hoisting operation safer and more stable.

[0033] Regarding counterweight 3, in one scheme, such as Figure 1-2 As shown, the counterweight 3 consists of four counterweights evenly distributed on the frame 1. Each counterweight is fixed by four pins 4 distributed around it. This allows the pressure generated by the counterweight to be distributed on the battery cell module 12, which is beneficial for the bonding of the bottom of the battery cell to the structural adhesive.

[0034] In another option, such as Figure 3-4 As shown, the counterweight 3 can be composed of counterweight 3-1 and counterweight 3-2 distributed vertically. Counterweight 3-2 is located above counterweight 3-1. Counterweight 3-1 consists of four counterweights evenly distributed on the frame 1, each fixed by four pins 4 around its perimeter. This distributes the pressure generated by the counterweights across the battery cell module 12, facilitating adhesion between the bottom of the battery cell and the structural adhesive. In this design, the weight of each counterweight is relatively small, making hoisting and installation easier.

[0035] In the above scheme, preferably, limiting blocks 7 are provided on both sides of the counterweight 3-2 on the frame 1. The limiting blocks 7 are installed on the frame 1 to limit the position of the counterweight 3-2 and prevent it from shifting during the pressing process. In addition, specifically, the counterweight 3-2 can be composed of two counterweights with the same structure and laid side by side.

[0036] Preferably, the limiting block 7 is a concave limiting block with the groove opening facing upwards, and the two ends of the counterweight block 3-2 are provided with mounting rods 8 that match the grooves of the concave limiting block. This design allows the counterweight block 3-2 to be accurately installed on the limiting block 7, and the mutual cooperation between the mounting rods 8 and the grooves of the concave limiting block further enhances the connection stability between the counterweight block 3-2 and the limiting block 7, preventing the counterweight block 3-2 from shaking or falling off during the pressing process, and ensuring the smooth progress of the pressing operation.

[0037] In addition, lifting handles 13 can be added to counterweight block 2 3-2 and installed on both sides of the mounting rod 8 to help maintain the balance of counterweight block 2 3-2 during hoisting. Operators can adjust the force on the lifting handles 13 on both sides of counterweight block 2 according to the actual situation, ensuring that counterweight block 2 3-2 remains horizontal during lifting and movement, reducing safety hazards caused by center of gravity shift, and improving the safety and stability of hoisting.

[0038] To make the technical solution of this utility model clearer, the specific implementation steps of the above-mentioned solution two are provided below for the pressing operation process of the battery cell module:

[0039] 1. Preliminary preparations

[0040] Beforehand, apply structural adhesive evenly to the module area of ​​the battery pack cell module 12 to ensure that the amount and distribution of the structural adhesive meet the process requirements, so as to ensure that the bottom of the cell module 12 can be tightly bonded to the structural adhesive.

[0041] 2. Overall hoisting and preliminary positioning of tooling

[0042] The frame 1 and the counterweight 3-1 are hoisted as a whole using the lifting ring 14.

[0043] During the hoisting process, the positioning pin 2 on frame 1 is gradually brought closer to and engaged with the lifting lug hole 10 on battery pack housing 9. Once the positioning pin 2 and lifting lug hole 10 are fully engaged, the hoisting operation is stopped. At this point, frame 1 and counterweight 3-1 are in a temporarily fixed but separable state.

[0044] 3. Frame 1 and counterweight 1-3-1 are in place.

[0045] Under the action of gravity, the frame 1 falls onto the cell insertion limit block 11 on the battery pack box 9, thus achieving the initial positioning and fixation of the frame 1.

[0046] Simultaneously, counterweight 3-1 naturally rests on the battery cell module 12. Counterweight 3-1 consists of four weights evenly distributed on the frame 1. This design ensures even pressure distribution on the battery cell module 12, facilitating full contact and adhesion between the bottom of the battery cell module 12 and the structural adhesive. Each weight has four pins 4, ensuring stable positioning of counterweight 3-1 on the battery cell module 12 and preventing movement. Furthermore, the bottom of counterweight 3-1 is equipped with a polyurethane battery cell pressure-resistant pad 5, effectively preventing direct pressure on the battery cell module 12 and avoiding damage.

[0047] 4. Lifting and pressure holding of counterweight block 2 (3-2)

[0048] Using hoisting equipment, lift counterweight block 3-2 and slowly place it into the limiting block 7 of frame 1. The limiting block 7 can precisely restrict the position of counterweight block 3-2, ensuring its stability during the pressing process.

[0049] According to the process requirements, the entire pressure-pressing fixture holds the battery cell module under pressure for about 3 minutes. During the pressure-holding process, the structural adhesive fully fills the gap between the bottom of the battery cell module 12 and the module area under pressure, achieving a tight bond.

[0050] 5. The adhesive bonding process is complete.

[0051] After the specified pressure holding time is reached, the adhesive bonding process is completed. At this point, the bottom of the cell module 12 is tightly bonded to the structural adhesive, and the uniformity of the cell terminal height is ensured, guaranteeing the stable and reliable connection of the internal circuitry of the battery pack.

[0052] In summary, this utility model has a simple structure and low cost, and while achieving effective adhesive bonding, it reduces the cost for battery pack manufacturers.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A battery cell module pressing fixture, characterized in that: It includes a supporting frame, with positioning pins on both sides of the frame; a counterweight for applying pressure is provided on the top of the frame, and the counterweight is mounted on the frame by a pin.

2. The cell module pressing fixture according to claim 1, characterized in that: The bottom of the counterweight is equipped with a cell pressure-resistant pad.

3. The cell module pressing fixture according to claim 2, characterized in that: The cell pressure-resistant pad is a polyurethane pad.

4. The cell module pressing fixture according to claim 3, characterized in that: The frame is equipped with lifting rings around its perimeter for hoisting.

5. The cell module pressing fixture according to claim 1, 2, 3, or 4, characterized in that: The counterweight consists of four pieces, which are evenly distributed on the frame.

6. The cell module pressing fixture according to claim 1, 2, 3, or 4, characterized in that: The counterweight consists of a counterweight block one and a counterweight block two distributed vertically; wherein the counterweight block two is located above the counterweight block one, and the counterweight block one consists of four blocks, which are evenly distributed on the frame.

7. The cell module pressing fixture according to claim 6, characterized in that: On the frame, limit blocks are respectively provided on both sides of the second counterweight.

8. The cell module pressing fixture according to claim 7, characterized in that: The limiting block is a concave limiting block with the groove opening facing upwards, and the two ends of the counterweight block are provided with mounting rods that match the grooves of the concave limiting block.

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