A manual gap correction adjusting device for CTP battery module

Abstract

The present application relates to the technical field of battery module gap adjustment, and discloses a CTP battery module manual gap correction and adjustment device, which comprises a detection platform, a placing table arranged at the middle of the detection platform, a battery module arranged in the placing table, a moving mechanism arranged on the detection platform and used for lifting and left-right moving adjustment, an extrusion mechanism arranged on both sides of the battery module and used for extruding the battery module, and a plurality of correction mechanisms arranged on the moving mechanism; the correction mechanism comprises a correction assembly arranged on the moving mechanism, an adjusting assembly arranged on the correction assembly, and a folding assembly. The present application is based on the cooperation structure of the folding groove, the positioning column and the folding spring, the idle assembly can be quickly embedded and stored, the operation interference is avoided, the equipment is convenient to change, the structure is compact, the CTP battery module correction operation of various specifications and different arrangements can be adapted, various scenes such as research and development, sample making, small-batch production and after-sales repair can be adapted, and the equipment universality is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of battery module gap adjustment technology, and more particularly to a manual gap correction and adjustment device for CTP battery modules. Background Technology

[0002] CTP (Continuous Packaging) battery cell assembly has become a mainstream technology for power batteries due to its high energy density and high integration. This structure eliminates the traditional module frame, directly assembling the cells. However, due to factors such as component processing errors and manual stacking, cell assemblies commonly suffer from uneven gaps and misalignment. Gap dimensional deviations directly affect subsequent processes such as battery pack casing assembly and busbar welding. They also cause variations in the thickness of internal heat dissipation channels and insulation layers, leading to increased temperature differences between cells, poor heat dissipation, accelerated cell aging over long-term use, safety hazards, and reduced overall structural strength and vibration resistance of the battery module.

[0003] Currently, gap correction is mostly achieved through manual tapping, resulting in low accuracy, poor consistency, and a high risk of scratching the cell casing, insulation layer, and tabs, leading to a low yield rate. While automated correction equipment offers higher accuracy, it is expensive, bulky, and involves complex changeover and debugging processes, making it unsuitable for product development, small-batch production, and on-site repair scenarios. Conventional manual correction fixtures on the market have fixed structures, cannot be flexibly adjusted for different numbers of CTP modules, are prone to loosening and rebound of the adjustment mechanism, and exposed parts are susceptible to impact interference, lacking reliable cell protection structures. To address these shortcomings of existing technologies, this invention proposes a modular, foldable manual gap correction and adjustment device for CTP battery modules to meet the actual needs of the industry. (Invention Content)

[0004] In view of the problems existing in the CTP battery module gap correction method, such as insufficient accuracy, easy damage to battery cells, poor equipment adaptability, and easy rebound during adjustment, a manual gap correction and adjustment device for CTP battery modules is proposed.

[0005] Its purpose is to provide a versatile manual calibration device that achieves precise gap adjustment and stable positioning through a slot-locking and flexible self-locking structure; protects the battery cells and prevents components from being bumped or accidentally touched by using a hidden layout and flexible contact structure; reduces the cost of using the device and the difficulty of operation, and meets the gap calibration needs in multiple scenarios.

[0006] The technical solution of the present invention is a manual gap correction and adjustment device for CTP battery modules, including a detection platform, a placement platform set in the middle of the detection platform, a battery module set in the placement platform, a moving mechanism set on the detection platform for lifting and moving left and right, a pressing mechanism set on both sides of the battery module for pressing the battery module, and a plurality of correction mechanisms set on the moving mechanism.

[0007] The correction mechanism includes a correction component disposed on the moving mechanism, an adjustment component and a folding component disposed on the correction component;

[0008] The correction assembly includes a sliding plate and a sliding rod disposed on the top of the moving mechanism. The two ends of the sliding plate and the sliding rod are rotatably connected to the top of the moving mechanism. A moving strip disposed on the sliding plate and the sliding rod is connected to a stop plate and a pressure plate at the bottom of the moving strip through a folding assembly. The bottom of the stop plate and the pressure plate are inclined elliptical shapes.

[0009] Furthermore, the adjustment component is disposed between the abutment plate and the pressure plate. The adjustment component includes a groove formed on the back of the pressure plate, a knob disposed in the groove, a limiting plate disposed on one side of the knob, the limiting plate and the pressure plate being rotatably connected in the middle, a connecting plate disposed on one side of the limiting plate, an adjustment plate disposed on one side of the connecting plate, several adjustment blocks disposed on one side of the adjustment plate, several adjustment slots corresponding to those formed on the abutment plate, a snap-fit ​​spring disposed in the middle of the abutment plate, a limiting rod disposed in the middle of the snap-fit ​​spring, the limiting rod being rotatably connected to the middle of the adjustment plate, and a pull plate disposed on one side of the snap-fit ​​spring, the pull plate and the adjustment plate being rotatably connected in the middle.

[0010] Furthermore, the adjusting block has an inclined surface, and both the adjusting block and the adjusting groove have slots that can engage with each other.

[0011] Furthermore, the folding assembly includes a T-shaped rod that passes through the top of the support plate, the pressure plate, and the bottom of the moving strip; a baffle plate disposed on one side of the T-shaped rod and abutting one end of the pressure plate; a folding spring disposed on the other side of the T-shaped rod; the folding spring being sleeved on the rotating rod and abutting the T-shaped rod; a positioning post disposed on one side of the top of the support plate; and a positioning groove formed on the moving strip for engaging the positioning post.

[0012] Furthermore, when the stop plate and pressure plate are rotated, the positioning pin can slide out of the positioning groove.

[0013] Furthermore, the knob is located within the groove and does not protrude from the side of the pressure plate.

[0014] Furthermore, the bottom of the movable strip is provided with a folding groove for folding and storing the pressure plate and the abutment.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This invention features multiple independently foldable and retractable calibration mechanisms. Depending on the number of cells in the CTP battery module, idle mechanisms can be flexibly activated or stored, overcoming the limitations of traditional tooling structures that are fixed and lack adaptability. Utilizing the combined structure of folding slots, positioning posts, and folding springs, idle components can be quickly and easily embedded, avoiding operational interference. The equipment is easy to change and has a compact structure, adaptable to calibration operations of various specifications and arrangements of CTP battery modules. It is suitable for various scenarios such as R&D prototyping, small-batch production, and after-sales repair, effectively improving the equipment's versatility.

[0017] 2. A self-locking adjustment structure is adopted, featuring an inclined adjustment block and an adjustment slot that engages. Combined with a snap-fit ​​spring and a limit rod, it achieves elastic pre-tightening positioning, enabling precise segmented adjustment and automatic locking of the gap size. Compared to traditional bolt adjustment methods, this structure offers stable positioning and clear gear positions, effectively preventing gap slippage and rebound offset during calibration. This ensures uniform and consistent gap sizes across all rows of cells, improves the CTP battery module layout accuracy, and guarantees consistent battery pack assembly, uniform heat dissipation, and overall structural stability.

[0018] 3. The knob is embedded within the groove of the pressure plate, without any protruding structure, which avoids accidental contact due to bumps or external forces during operation, prevents parameter deviation, and ensures operational stability. Simultaneously, the abutment and pressure plate are made of flexible insulating material, combined with an inclined elliptical guide structure, achieving a soft contact and fit with the battery cell, eliminating hard points and sharp edge compression. This effectively protects the battery cell casing and insulation layer, avoiding the risk of conductive short circuits. While achieving high-precision calibration, this significantly improves operational safety and product yield. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall structure of the various correction mechanisms of the present invention on the sliding plate;

[0021] Figure 3 This is a three-dimensional structural diagram of a single correction mechanism of the present invention;

[0022] Figure 4 This is an exploded structural diagram of the correction mechanism of the present invention;

[0023] Figure 5 This is a cross-sectional view of the adjustment component of the present invention;

[0024] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A in the middle;

[0025] Figure 7 This is a three-dimensional structural diagram of the pressure plate of the present invention (half-section).

[0026] Figure 8 This is a schematic diagram of the overall exploded structure of the adjustment component of the present invention;

[0027] Figure 9 This is an exploded structural diagram of the folding component of the present invention;

[0028] Figure 10 This is a schematic diagram of the rotation direction of the adjusting block and a structural schematic diagram of the adjusting block and the slot inside the adjusting groove of the present invention.

[0029] In the picture:

[0030] 1. Testing platform; 11. Placement platform; 12. Moving mechanism; 13. Extrusion mechanism; 2. Correction assembly; 21. Sliding plate; 22. Sliding rod; 23. Moving bar; 24. Support plate; 25. Pressure plate; 3. Adjustment assembly; 31. Knob; 32. Limiting plate; 33. Connecting plate; 34. Adjusting plate; 35. Adjusting block; 36. Adjusting groove; 37. Snap-fit ​​spring; 38. Limiting rod; 39. Pulling plate; 4. Snap-fit ​​groove; 5. Folding assembly; 51. T-shaped rod; 52. Baffle; 53. Folding spring; 54. Positioning post; 55. Positioning groove. Detailed Implementation

[0031] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] Example 1, referring to Figures 1-10This first embodiment of the invention provides a manual gap correction and adjustment device for CTP battery modules, including a testing platform 1, a placement platform 11 disposed in the middle of the testing platform 1, a battery module disposed within the placement platform 11, a moving mechanism 12 disposed on the testing platform 1 for lifting and lateral movement adjustment, and pressing mechanisms 13 disposed on both sides of the battery module for pressing the battery module. It also includes several correction mechanisms disposed on the moving mechanism 12; each correction mechanism includes a correction component 2 disposed on the moving mechanism 12, an adjustment component 3 disposed on the correction component 2, and a folding component 5 disposed on the correction component 2; the correction component 2 includes a sliding plate 21 and a sliding rod 22 movably connected to the top of the moving mechanism 12. The sliding rod 22 has a scale for adjustment on one side. The two ends of the sliding plate 21 and the sliding rod 22 are rotatably connected to the top of the moving mechanism 12. The moving bar 23, which is slidably connected to the sliding plate 21 and the sliding rod 22, is connected to the bottom of the moving bar 23 via the folding assembly 5 to the abutment plate 24 and the pressure plate 25. The bottom of the abutment plate 24 and the pressure plate 25 is slanted elliptical. The contact parts of the abutment plate 24 and the pressure plate 25 are made of flexible non-metallic material, which makes soft contact with the battery module. There are no sharp edges or hard points during the squeezing and insertion process, which effectively avoids the battery cell shell, insulation layer and electrode tab being scratched or squeezed and damaged. The material has insulating properties, which can prevent the metal parts from conducting electricity and causing short circuits and leakage risks, thus improving the safety of the equipment.

[0033] Specifically, when adjusting the gap between battery modules, the appropriate number of correction mechanisms are selected according to the number of battery modules to be adjusted. The correction mechanisms that are not needed are folded by the folding component 5, and the size of the gap to be corrected can be adjusted by the adjusting component 3. After adjustment, the correction component 2 is inserted between the battery modules by the moving mechanism 12, and then the two sides of the battery modules are squeezed by the squeezing mechanism 13 so that the battery modules fit together. The pressure plate 25 and the abutment plate 24 are used to adjust the size of the correction gap.

[0034] This equipment achieves universal and precise calibration of the gaps between CTP battery modules of various specifications through a modular foldable calibration mechanism and a visual gap adjustment structure. It not only solves the problems of low efficiency and poor consistency of traditional single-cell fine-tuning, but also avoids cell damage through a flexible contact structure. At the same time, it greatly improves the versatility and ease of operation of the equipment, especially suitable for the R&D, prototyping and rework scenarios of small batches and multiple specifications of CTP modules, taking into account calibration accuracy, cell safety and usage cost.

[0035] Example 2, refer to Figures 4-8This is the second embodiment of the present invention, which differs from the first embodiment in that: the adjustment component 3 is disposed between the abutment plate 24 and the pressure plate 25. The adjustment component 3 includes a groove formed on the back of the pressure plate 25, a knob 31 rotatably connected in the groove, a limiting plate 32 fixedly connected to one side of the knob 31, the limiting plate 32 and the pressure plate 25 being rotatably connected in the middle, a connecting plate 33 fixedly connected to one side of the limiting plate 32, an adjustment plate 34 fixedly connected to one side of the connecting plate 33, a plurality of adjusting blocks 35 fixedly connected to one side of the adjustment plate 34, a plurality of adjusting grooves 36 correspondingly formed on the abutment plate 24, a snap-fit ​​spring 37 fixedly connected to the middle of the abutment plate 24, a limiting rod 38 sleeved on the middle of the snap-fit ​​spring 37, the limiting rod 38 being rotatably connected to the middle of the adjustment plate 34, and a pull plate 39 fixedly connected to one side of the snap-fit ​​spring 37, the pull plate 39 and the adjustment plate 34 being rotatably connected in the middle. The adjusting block 35 has an inclined surface, and both the adjusting block 35 and the adjusting groove 36 have slots 4 that can be engaged with each other.

[0036] Specifically, during adjustment, by rotating knob 31, knob 31 drives limit plate 32, connecting plate 33 and adjusting plate 34 to rotate. In the initial state, adjusting plate 34 is engaged in adjusting groove 36. Adjusting plate 34 drives adjusting block 35 to rotate. Adjusting block 35 rotates along the groove surface of adjusting groove 36. Due to the engaging action of engaging spring 37 and adjusting block 35 and adjusting groove 36, adjusting block 35 cannot slide down along adjusting groove 36. Moreover, limit plate 32 limits the rotation within pressure plate 25, thus widening the distance between abutment plate 24 and pressure plate 25, thereby achieving the effect of adjusting the gap distance. Limiting rod 38 is used to improve the stability of engagement between adjusting block 35 and adjusting groove 36 and the accuracy of reset. When resetting, pulling knob 31 and rotating knob 31 in the opposite direction can disengage the engagement between adjusting block 35 and adjusting groove 36.

[0037] This structure employs an adjustment block 35 with an inclined surface that matches and engages with an adjustment groove 36. These are locked together by an inclined surface locking groove 4, and secured by a spring for elastic locking and positioning. This allows for precise segmented adjustment of the gap between the abutment plate 24 and the pressure plate 25. The dual structure of inclined surface guidance and locking groove 4 provides clear adjustment levels, eliminates slippage and gap movement, and precisely locks each adjustment level, effectively ensuring the consistency of the gap dimensions in each correction mechanism. This completely solves the problem of uneven gap correction and deviation fluctuations in the CTP module's cell gaps. An elastic pre-tightening structure is formed by the locking spring 37 and the limiting rod 38. After adjustment, the adjustment block 35 automatically locks into the adjustment groove 36, achieving self-locking fixation without additional screws. This prevents gap rebound and dimensional shift during correction, extrusion, and pressure setting, significantly improving the stability and yield rate of battery module gap correction. The remaining structure is the same as in Example 1.

[0038] Example 3, referring to Figure 4 and Figure 9 This is the third embodiment of the present invention, which differs from the second embodiment in that: the folding assembly 5 includes a T-shaped rod 51 that passes through the top of the abutment plate 24, the pressure plate 25, and the bottom of the moving strip 23; a baffle 52 that is fixedly connected to one side of the T-shaped rod 51 and abuts against one end of the pressure plate 25; a folding spring 53 that abuts against the other side of the T-shaped rod 51; the folding spring 53 that is sleeved on the rotating rod and abuts against the end of the T-shaped rod 51; a positioning post 54 that is fixedly connected to one side of the top of the abutment plate 24; and a positioning groove 55 that is opened on the moving strip 23 for engaging the positioning post 54.

[0039] Specifically, under normal conditions, the positioning pin 54 is engaged in the positioning groove 55, working in conjunction with the T-shaped rod 51 and the baffle 52 to create a limiting position, keeping the abutment plate 24 and pressure plate 25 in a vertical working state, allowing for normal gap correction operations. When it is necessary to store the idle correction mechanism, rotate the pressure plate 25 and the abutment plate 24, causing the positioning pin 54 to slide out of the positioning groove 55, compressing the folding spring 53 until it rotates to a vertical position, allowing the positioning pin 54 to re-engage in another positioning groove 55, causing the entire assembly to fold inwards. After folding, the folding spring 53 returns to its original position, limiting and fixing the folded components to prevent them from unfolding on their own during operation. When using it again, rotate the abutment plate 24 and pressure plate 25 in the opposite direction to a vertical position, allowing the positioning pin 54 to re-engage in the positioning groove 55, thus restoring the working posture. The T-shaped rod 51, folding spring 53, positioning post 54 and positioning groove 55 work together to achieve quick folding and locking without the need for additional disassembly of parts. The idle correction mechanism can be flexibly folded according to the number of battery module rows, adapting to different specifications of products, while reducing the space occupied by the equipment and facilitating storage and transportation.

[0040] Reference Figures 3-4 and Figure 9 When the stop plate 24 and the pressure plate 25 are rotated, the positioning pin 54 can slide out of the positioning groove 55.

[0041] Specifically, the positioning column 54 and the positioning groove 55 adopt a sliding fit structure, which allows for smooth disengagement without jamming during rotation, simplifying the operation process; with the dual limiting of the folding spring 53 and the baffle 52, reliable positioning can be achieved in both the working position and the folding position, ensuring stable mechanism posture and preventing loosening or offset problems.

[0042] Reference Figure 7 The knob 31 is located in the groove and does not protrude from the side of the pressure plate 25.

[0043] Specifically, an embedded, hidden layout is adopted, with the knob 31 not protruding from the pressure plate 25. This avoids the knob 31 from scratching or impacting the battery module during operation, protecting the battery cells and equipment parts. On the other hand, it can prevent external force from accidentally touching the knob 31 and causing it to deflect, locking the adjustment position and further improving the stability and safety of equipment operation.

[0044] Reference Figure 3 The bottom of the movable strip 23 is provided with a folding groove for folding and storing the pressure plate 25 and the abutment plate 24.

[0045] Specifically, the folding groove forms a dedicated storage space, and after folding, the pressure plate 25 and the abutment plate 24 are completely embedded and stored, resulting in a neat and compact overall shape that significantly reduces space occupation. The remaining structure is the same as that in Embodiment 2.

[0046] Based on embodiments 1-3, the working principle of the present invention is as follows: During operation, the CTP battery module to be calibrated is first placed in the placement platform 11 of the testing platform 1 to complete the positioning and fixation. According to the actual number of rows of battery modules, the corresponding number of calibration mechanisms are selected for use. The excess or idle calibration mechanisms are folded and stored by the folding component 5 to avoid structural interference, so that the equipment can be adapted to battery modules of different specifications.

[0047] Before the calibration mechanism operates, the gap size is precisely set by adjusting component 3. The operator rotates the knob 31 embedded in the groove of the pressure plate 25, causing the limiting plate 32, connecting plate 33, and adjusting plate 34 to rotate synchronously. This causes the adjusting block 35, which has an inclined surface and a slot 4 on the adjusting plate 34, to slide and engage along the inclined surface of the adjusting groove 36 on the abutment plate 24. Under the elastic limiting action of the engaging spring 37 and the limiting rod 38, the adjusting block 35 and the adjusting groove 36 always remain engaged and locked, and will not slip off on their own. This stabilizes the gap between the abutment plate 24 and the pressure plate 25, achieving precise adjustment and self-locking of the gap level, ensuring that the gap size of each group of calibrations is uniform and without rebound or offset.

[0048] After the gap parameters are adjusted, the moving mechanism 12 drives the sliding plate 21, sliding rod 22, and moving bar 23 to move downwards and align left and right, precisely inserting multiple sets of abutment plates 24 and pressure plates 25 between the cells of the battery module. The bottom of the abutment plates 24 and pressure plates 25 adopts an inclined elliptical guide structure and is made of flexible insulating material, so that the insertion process will not scratch or squeeze the cell shell and insulation layer, achieving safe soft contact correction. Subsequently, the entire battery module is laterally and uniformly squeezed by the pressing mechanisms 13 on both sides, so that each row of cells fits uniformly with the preset gap size of the abutment plates 24 and pressure plates 25, completing the uniform correction and shaping of the gap of the entire battery module.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A manual gap correction and adjustment device for CTP battery modules, comprising a testing platform (1), a placement platform (11) disposed in the middle of the testing platform (1), a battery module disposed in the placement platform (11), a moving mechanism (12) disposed on the testing platform (1) for lifting and left-right movement adjustment, and a pressing mechanism (13) disposed on both sides of the battery module for pressing the battery module, characterized in that, It also includes several correction mechanisms disposed on the moving mechanism (12); The correction mechanism includes a correction component (2) disposed on the moving mechanism (12), an adjustment component (3) disposed on the correction component (2), and a folding component (5). The correction component (2) includes a sliding plate (21) and a sliding rod (22) disposed on the top of the moving mechanism (12). Both ends of the sliding plate (21) and the sliding rod (22) are rotatably connected to the top of the moving mechanism (12). A moving strip (23) disposed on the sliding plate (21) and the sliding rod (22) is connected to a stop plate (24) and a pressure plate (25) at the bottom of the moving strip (23) by a folding component (5). The bottom of the stop plate (24) and the pressure plate (25) are inclined elliptical.

2. The manual gap correction and adjustment device for CTP battery modules according to claim 1, characterized in that: The adjusting component (3) is disposed between the abutment plate (24) and the pressure plate (25). The adjusting component (3) includes a groove formed on the back of the pressure plate (25), a knob (31) disposed in the groove, a limiting plate (32) disposed on one side of the knob (31), the limiting plate (32) and the pressure plate (25) being rotatably connected at the middle, a connecting plate (33) disposed on one side of the limiting plate (32), and an adjusting plate (34) disposed on one side of the connecting plate (33). A plurality of adjusting blocks (35) are provided on one side of the adjusting plate (34), a plurality of adjusting grooves (36) are provided on the abutment plate (24), a snap-fit ​​spring (37) is provided in the middle of the abutment plate (24), a limiting rod (38) is provided in the middle of the snap-fit ​​spring (37), the limiting rod (38) is rotatably connected to the middle of the adjusting plate (34), and a pull plate (39) is provided on one side of the snap-fit ​​spring (37), the pull plate (39) and the adjusting plate (34) are rotatably connected.

3. The manual gap correction and adjustment device for CTP battery modules according to claim 2, characterized in that: The adjusting block (35) has an inclined surface, and the inclined surfaces of the adjusting block (35) and the adjusting groove (36) are provided with slots (4) that can be engaged with each other.

4. The manual gap correction and adjustment device for CTP battery modules according to claim 1, characterized in that: The folding assembly (5) includes a T-shaped rod (51) that passes through the top of the support plate (24), the pressure plate (25), and the bottom of the moving strip (23); a baffle (52) that is located on one side of the T-shaped rod (51) and abuts against one end of the pressure plate (25); a folding spring (53) that is located on the other side of the T-shaped rod (51); the folding spring (53) that is sleeved on the rotating rod and abuts against the T-shaped rod (51); a positioning post (54) that is located on one side of the top of the support plate (24); and a positioning groove (55) that is opened on the moving strip (23) for engaging the positioning post (54).

5. The manual gap correction and adjustment device for CTP battery modules according to claim 4, characterized in that: When the abutment plate (24) and pressure plate (25) are rotated, the positioning pin (54) can slide out of the positioning groove.

6. The manual gap correction and adjustment device for CTP battery modules according to claim 2, characterized in that: The knob (31) is located in the groove and does not protrude from the side of the pressure plate (25).

7. The manual gap correction and adjustment device for CTP battery modules according to claim 6, characterized in that: The bottom of the movable strip (23) is provided with a folding groove for the pressure plate (25) and the abutment plate (24) to be folded and stored.

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