Battery module welding tray

Abstract

The utility model belongs to lithium ion battery technical field, concretely relates to a kind of battery module welding tray, including bottom plate, still including bottom plate reinforcing plate, limiting block, X direction adjusting module, Y direction adjusting module and Z direction adjusting module;The bottom plate reinforcing plate is fixedly connected at the bottom of bottom plate;X direction adjusting module and Y direction adjusting module are detachably connected in the side of bottom plate by first fastener;Z direction adjusting module is detachably connected on the upper surface of bottom plate by positioning pin;The limiting block is detachably mounted on the bottom plate, X direction adjusting module and or Y direction adjusting module by second fastener.The utility model is flexibly combined by modular design X, Y, Z direction adjusting module and bottom plate, realizes the adjustable of welding tray three-dimensional size, significantly improves the versatility of tray, so that it can quickly adapt to battery module of different sizes, effectively overcome the problem of poor compatibility of traditional special tray.

Description

Technical Field

[0001] This utility model belongs to the field of lithium-ion battery technology, specifically relating to a battery module welding tray. Background Technology

[0002] With the rapid development of the new energy industry, new energy vehicles have become an important part of the automotive industry. As the primary power source, the manufacturing quality of lithium batteries (battery packs) directly affects the performance and safety of the entire vehicle. During the production and prototype manufacturing of battery packs, multiple cells are typically assembled into modules, and busbars are welded on welding trays to ensure reliable electrical connections between the cells.

[0003] Currently, most battery module welding trays on the market are specialized tooling designed for specific models or sizes of modules, resulting in poor versatility. Because different projects or products use battery modules with significant size variations, existing trays are incompatible with multiple modules, requiring companies to customize dedicated trays for each new product. This not only significantly increases the manufacturing cost of the tooling but also leads to a large backlog of idle trays due to project changes, consuming warehousing resources and increasing tooling management and maintenance costs.

[0004] Furthermore, given the rapidly changing market demands or the urgent need to introduce new projects, the design and manufacturing cycle of traditional specialized pallets is relatively long, making it difficult to meet the flexible production needs of multiple varieties and small batches, thus affecting the response speed and overall efficiency of the production line.

[0005] While some adjustable tray structures exist in the existing technology, such as those using sliding rails or movable baffles to accommodate products of different sizes, these structures often suffer from problems such as insufficient positioning accuracy, rapid mechanical wear, and poor long-term stability, making it difficult to meet the high requirements for positional accuracy and structural rigidity during battery module welding. Utility Model Content

[0006] The purpose of this invention is to develop a welding tray that is highly compatible, quickly adjustable, structurally robust, and suitable for various battery module sizes, so as to improve production flexibility, reduce tooling costs, and shorten the new product introduction cycle.

[0007] To achieve the above objectives, this utility model provides the following technical solution: This utility model provides a battery module welding tray, including a base plate, a base plate reinforcing plate, a limiting block, an X-direction adjustment module, a Y-direction adjustment module and a Z-direction adjustment module; The base plate reinforcing plate is fixedly connected to the bottom of the base plate; The X-direction adjustment module and the Y-direction adjustment module are detachably connected to the side of the base plate via a first fastener; The Z-direction adjustment module is detachably connected to the upper surface of the base plate via a positioning pin; The limiting block is detachably mounted on the base plate, the X-direction adjustment module, and / or the Y-direction adjustment module via a second fastener.

[0008] Preferably, the base plate, the X-direction adjustment module, the Y-direction adjustment module, and the Z-direction adjustment module are all made of insulating material.

[0009] Preferably, the insulating material is FRC epoxy resin.

[0010] Preferably, the base plate reinforcing plate is made of 45 steel.

[0011] Preferably, the first fastener is an internal hex screw.

[0012] Preferably, the connection points between the X-direction adjustment module and the Y-direction adjustment module and the base plate are provided with elongated holes for the first fastener to pass through, so as to achieve fine adjustment of the connection position.

[0013] Preferably, the second fastener is an internal hex screw.

[0014] Preferably, the limiting block is made of white polyoxymethylene.

[0015] Preferably, the device also includes a handle, which is mounted on the base plate and / or the Y-direction adjustment module via a third fastener.

[0016] Preferably, the locating pin is made of stainless steel.

[0017] The beneficial effects of this utility model are as follows: This utility model achieves adjustable three-dimensional dimensions of the welding tray by flexibly combining modularly designed X, Y, and Z direction adjustment modules with the base plate, significantly improving the tray's versatility and enabling it to quickly adapt to battery modules of different sizes, effectively overcoming the poor compatibility problem of traditional dedicated trays. This design, combining an FRC epoxy resin insulating base plate with a steel reinforcing plate structure, greatly enhances the rigidity and durability of the overall structure while ensuring insulation performance and lightweight design, reducing deformation during long-term use. Reliable connections achieved through hexagonal screws and locating pins, along with precisely positioned limit blocks, ensure the positioning accuracy and stability of the battery module during welding, thereby guaranteeing welding quality. The overall solution significantly reduces tooling customization, inventory backlog, and management costs caused by product iteration, strongly supporting the flexible production needs of multi-variety, small-batch production and shortening the introduction cycle of new projects. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the battery module welding tray described in this utility model; Figure 2 This is a schematic diagram of the pallet assembly structure of a specific embodiment of this utility model (corresponding to EP90 project); Figure 3 This is a schematic diagram of the pallet assembly structure of a specific embodiment of this utility model (corresponding to EP110 project); Figure 4 This is a schematic diagram of the tray assembly structure of a specific embodiment of this utility model (corresponding to EP130 project).

[0019] In the diagram: 1. Base plate; 2. Base plate reinforcing plate; 3. Limiting block; 4. Handle; 5. X-direction adjustment module; 6. Y-direction adjustment module; 7. Z-direction adjustment module; 8. Positioning pin; 9. M4*12 socket head cap screw; 10. M5*50 socket head cap screw; 11. M5*16 socket head cap screw; 12. M6*16 socket head cap screw. Detailed Implementation

[0020] It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixed connection," and "fixed connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] like Figure 1 As shown, the battery module welding tray provided by this utility model has a core structure including a basic frame, an adjustment module, and functional accessories.

[0024] The basic frame consists of a base plate 1 and a base plate reinforcing plate 2. The base plate 1 is made of FRC epoxy resin, which has excellent insulation properties and mechanical strength. The base plate reinforcing plate 2 is made of 45# steel and is fixed to the bottom of the base plate 1 with M4×12 socket head cap screws 9, which significantly enhances the overall rigidity of the pallet.

[0025] The adjustment module includes an X-direction adjustment module 5, a Y-direction adjustment module 6, and a Z-direction adjustment module 7. The X-direction adjustment module 5 and the Y-direction adjustment module 6 are also made of FRC epoxy resin and are detachably connected to the corresponding sides of the base plate 1 using M5×50 socket head cap screws 10. The Z-direction adjustment module 7 is also made of FRC epoxy resin and is detachably mounted on the upper surface of the base plate 1 using stainless steel locating pins 8.

[0026] The functional accessories mainly include a limiting block 3 and a handle 4. The limiting block 3 is made of white polyoxymethylene material and is detachably mounted on the base plate 1 or each adjustment module using M5×16 hex socket screws 11. The handle 4 is made of nylon material and is mounted on the side of the tray using M6×16 hex socket screws 12.

[0027] The working principle of this utility model is to achieve rapid adjustment of the tray size in three-axis directions through the flexible combination of the above-mentioned modular structure, thereby adapting to battery modules of different shapes and sizes.

[0028] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings and preferred embodiments.

[0029] Taking the EP series projects (EP90 / EP110 / EP130) as an example, the three projects have three types of modules, and the sizes of the three modules are different, as shown in the table below.

[0030]

[0031] The specific working steps of this patent are as follows: 1. Assembly steps for welding trays in the EP90 project: Connect the base plate 1 and the base plate reinforcement plate 2 using M4*12 socket head cap screws 9. Install the six limiting blocks 3 onto the base plate 1 using M5*16 socket head cap screws 11. Install the four handles 4 onto the base plate using M6*16 socket head cap screws 12. This project requires the module end plate to be 1.1mm higher than the bottom of the battery cell, therefore a Z-direction adjustment module 7 needs to be added to the bottom of the module. Assemble the Z-direction adjustment module 7 with the base plate 1 using positioning pins 8 to complete the pallet assembly operation. Hoist the module onto the welding pallet to complete this operation. Figure 2 As shown.

[0032] 2. Assembly steps for welding pallets in the EP110 project: Connect the base plate 1 and the base plate reinforcing plate 2 with M4*12 countersunk head screws 9. Connect the two X-direction adjustment modules 5 to the X-direction sides of the base plate 1 respectively with M5*50 socket head screws 10. Install the four limiting blocks 3 on the sides of the base plate 1 with M5*16 socket head screws 11. Install the two limiting blocks 3 on the X-direction adjustment modules 5 with M5*16 socket head screws 11. Install the four handles 4 on the base plate 1 with M6*16 socket head screws 12. This project requires the module end plate to be 1.1mm higher than the bottom of the battery cell. Therefore, a Z-direction adjustment module 7 needs to be added to the bottom of the module. Assemble the Z-direction adjustment module 7 with the base plate 1 using positioning pins 8 to complete the pallet assembly operation. Hoist the module onto the welding pallet to complete this operation. Figure 3 As shown.

[0033] 3. Assembly steps for welding pallets in the EP130 project: Connect the base plate 1 and the base plate reinforcing plate 2 using M4*12 countersunk head hex screws 9. Connect the two Y-direction adjustment modules 6 to the two sides of the base plate 1 in the Y direction using M5*50 hex screws 10. Install the two limit blocks 3 on the two sides of the base plate 1 in the X direction using M5*16 hex screws 11. Install the four limit blocks 3 on the Y-direction adjustment modules 6 using M5*16 hex screws 11. Install the four handles 4 on the Y-direction adjustment modules 6 using M6*16 hex screws 12. This completes the pallet assembly operation. Hoist the module onto the welding pallet to complete this operation. Figure 4 As shown.

[0034] For those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A battery module welding tray, comprising a base plate (1), characterized in that, It also includes a base plate reinforcing plate (2), a limiting block (3), an X-direction adjustment module (5), a Y-direction adjustment module (6), and a Z-direction adjustment module (7); The base plate reinforcing plate (2) is fixedly connected to the bottom of the base plate (1); The X-direction adjustment module (5) and the Y-direction adjustment module (6) are detachably connected to the side of the base plate (1) by a first fastener; The Z-direction adjustment module (7) is detachably connected to the upper surface of the base plate (1) via a positioning pin (8); The limiting block (3) is detachably mounted on the base plate (1), the X-direction adjustment module (5) and / or the Y-direction adjustment module (6) by means of a second fastener.

2. The battery module welding tray according to claim 1, characterized in that, The base plate (1), X-direction adjustment module (5), Y-direction adjustment module (6) and Z-direction adjustment module (7) are all made of insulating material.

3. A battery module welding tray according to claim 2, characterized in that, The insulating material is FRC epoxy resin.

4. A battery module welding tray according to claim 1, characterized in that, The base plate reinforcing plate (2) is made of No. 45 steel.

5. A battery module welding tray according to claim 1, characterized in that, The first fastener is an internal hex screw.

6. A battery module welding tray according to claim 1, characterized in that, At the connection point between the X-direction adjustment module (5) and the Y-direction adjustment module (6) and the base plate (1), there is a long hole for the first fastener to pass through, which is used to make fine adjustments to the connection position.

7. A battery module welding tray according to claim 1, characterized in that, The second fastener is an internal hex screw.

8. A battery module welding tray according to claim 1, characterized in that, The limiting block (3) is made of white POM.

9. A battery module welding tray according to claim 1, characterized in that, It also includes a handle (4), which is mounted on the base plate (1) and / or the Y-direction adjustment module (6) by a third fastener.

10. A battery module welding tray according to claim 1, characterized in that, The positioning pin (8) is made of stainless steel.

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