Welding-free busbar mounting device

Abstract

The utility model discloses a welding-free busbar mounting device, which relates to the technical field of storage battery manufacturing, and comprises a shaping and positioning mechanism and an auxiliary mounting mechanism, a longitudinal screw and a transverse screw are arranged on the shaping and positioning mechanism, the longitudinal screw and the transverse screw are connected through a fixing block, a plurality of pressing plates are arranged on one side of the fixing block, and the pressing plates are arranged on the other side of the fixing block. According to the utility model, through the optimized design, the structure of the mounting device is more stable, the problem that dislocation is easy to occur during mounting in the prior art is effectively solved, and the mounting accuracy and reliability are improved.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, and in particular to an installation device for a weld-free busbar. Background Technology

[0002] Lead-acid batteries are mitigating the impact of lithium and sodium batteries by improving performance and reducing costs. Manufacturers are further increasing production capacity and lowering costs by automating the battery assembly process. However, battery casting and welding equipment consumes a significant amount of energy, manpower, and resources. Furthermore, the high-temperature welding of the tabs and busbars makes the tabs highly susceptible to melting and damage, affecting battery performance. Current battery assembly methods utilize manual welding and casting to fuse the busbars and tabs together, lacking the necessary devices for solderless busbar installation onto the tabs.

[0003] In the prior art, patent publication number CN220839944U discloses a busbar installation fixture. This fixture includes a plate and mounting components. The plate can be mounted on the end plate of the battery cell via the mounting components, making the plate parallel to the end plate. The plate has multiple positioning holes that match the busbars and allow the busbars to pass through. These positioning holes are respectively aligned with the installation positions of the corresponding busbars. The fixture in the prior art has poor overall stability and is prone to misalignment during installation. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the existing busbar installation fixtures are unstable and prone to misalignment during installation, and to provide a stable, weld-free busbar installation device.

[0005] Another objective of this invention is to address the problems of complex existing busbar installation structures, high reliance on manual labor, and high costs, and to provide a more economical welding-free busbar installation device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an installation device for a weld-free busbar, comprising a shaping and positioning mechanism and an auxiliary installation mechanism. The shaping and positioning mechanism is provided with a longitudinal screw and a transverse screw, which are connected by a fixing block. Several pressure plates are provided on one side of the fixing block, and the battery tabs on the battery are snapped into the pressure plates.

[0007] Preferably, the busbar includes a positioning block and a bayonet, and the bayonet has an inner groove.

[0008] Preferably, the auxiliary installation mechanism is provided with a positioning groove, and one side of the positioning groove is a positioning hole.

[0009] As a preferred option, the busbar is inverted and embedded into the positioning groove during installation.

[0010] Preferably, the battery tongue is fitted to the upper surface of the auxiliary installation mechanism during installation.

[0011] Preferably, a baffle is provided on one side of the fixing block.

[0012] Preferably, a spring is provided below the baffle, and the pressure plate is driven when the spring is squeezed.

[0013] Preferably, several transverse screws are connected in parallel to the fixed block.

[0014] Preferably, the baffle on the shaping and positioning mechanism cooperates with the battery tongue to limit the battery position.

[0015] Preferably, the fixing block has threaded holes inside that mate with the transverse screw and the longitudinal screw.

[0016] Compared with the prior art, the beneficial effects of this utility model are: through optimized design, the structure of the installation device is more stable, effectively solving the problem of misalignment during installation in the prior art, and improving the accuracy and reliability of installation.

[0017] This utility model has a simplified structure, reduces unnecessary complex parts, makes the installation process simpler and faster, and reduces reliance on manpower, thereby improving overall economy.

[0018] This invention eliminates the casting and welding production process, significantly reduces the input of manpower and material resources, lowers energy consumption costs, avoids the risk of electrode breakage that may be caused by high-temperature casting and welding, and improves the stability of product quality.

[0019] This invention reduces the risk of electrode tab melting caused by high-temperature casting and welding through welding-free technology, improves the quality stability of battery products, thereby reducing the short-term return rate of batteries and enhancing market competitiveness. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the battery of this utility model in the shaping and positioning mechanism.

[0021] Figure 2 This is an enlarged view of a partial structure of the present invention, shown in Figure C.

[0022] Figure 3 This is a schematic diagram of the battery and busbar of this utility model in combination.

[0023] Figure 4 This is a schematic diagram of the busbar structure of this utility model.

[0024] Figure 5 This is an enlarged view (D) of a partial structure of the present invention.

[0025] Figure 6This is a schematic diagram of the auxiliary installation mechanism of this utility model.

[0026] In the diagram: 1. Battery; 11. Battery tab; 12. Battery tongue; 2. Shaping and positioning mechanism; 21. Longitudinal screw; 22. Transverse screw; 23. Fixing block; 24. Pressure plate; 25. Spring; 26. Baffle; 3. Busbar; 31. Bayonet; 32. Bayonet inner groove; 33. Positioning block; 4. Auxiliary installation mechanism; 41. Positioning hole; 42. Positioning groove. Detailed Implementation

[0027] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. The described embodiments are only some embodiments of this utility model, and not all embodiments.

[0028] Example 1: Refer to Figures 1 to 6 This is an installation device for a weld-free busbar. The longitudinal screw 21 and the transverse screw 22 are components of a shaping and positioning mechanism. They are perpendicular to each other and work together to adjust the internal dimensions of the mechanism. The screws are made of high-strength alloy steel with a hardened surface treatment to ensure accuracy during frequent adjustments. The threaded portion of the screws uses a trapezoidal thread design, which has good self-locking properties and high transmission efficiency, enabling precise control of the movement distance of the fixing block 23. In actual operation, depending on the battery model 1, the operator adjusts the internal dimensions of the shaping and positioning mechanism 2 by rotating the screws to match the dimensions of the battery tabs 11. For example, for smaller batteries, the screws need to be screwed in to reduce the internal dimensions; while for larger batteries, the screws need to be unscrewed to increase the internal dimensions.

[0029] The fixing block 23 is a key component connecting the longitudinal screw 21 and the transverse screw 22, and it has threaded holes inside that mate with the screws. The fixing block 23 is made of aluminum alloy, which ensures sufficient strength while reducing the weight of the device. Several pressure plates 24 are provided on one side of the fixing block 23. These pressure plates 24 are evenly distributed to ensure uniform compression of the battery tabs 11. The pressure plates 24 are made of hard plastic, which has good insulation and wear resistance, effectively correcting the tabs without damaging them.

[0030] Spring 25 is installed below baffle 26. When the transverse screw 22 rotates inward, the fixing block 23 moves laterally, compressing spring 25. The compressed spring 25 generates a reaction force, which is transmitted to pressure plate 24 through fixing block 23, thereby achieving compression and correction of the battery tab 11. Spring 25 is made of stainless steel, possessing good elasticity and corrosion resistance, enabling it to operate stably for extended periods in harsh production environments. Under the action of spring 25, pressure plate 24 can flexibly compress the tab, and the compression force can be adjusted according to the thickness and material of the tab. For example, for thicker tabs, the compression force can be increased by increasing the preload of spring 25; while for thinner tabs, the preload can be appropriately reduced to avoid excessive compression leading to tab deformation.

[0031] A baffle 26 is positioned on one side of the fixing block 23, and its function is to limit the position of the battery 1, which is upside down on the shaping and positioning mechanism 2. The baffle 26 is made of engineering plastic, possessing high strength and rigidity, capable of withstanding the weight of the battery 1 and various external forces during the production process. The baffle 26 cooperates with the battery tongue 12; when the battery 1 is upside down on the shaping and positioning mechanism 2, the baffle 26 precisely embeds into the battery tongue 12, ensuring the accurate positioning of the battery 1 and providing stable support for subsequent shaping and installation processes. The main function of the auxiliary installation mechanism 4 is to provide precise positioning and support for the installation of the busbar 3, ensuring that the busbar 3 can be accurately connected to the battery tab 11.

[0032] The auxiliary installation mechanism 4 is provided with a positioning groove 42, and a positioning hole 41 is located on one side of the positioning groove 42. The size and shape of the positioning groove 42 match the busbar 3, ensuring that the busbar 3 maintains the correct position and orientation during installation. The positioning hole 41 is used to further fix the busbar 3 and prevent it from shifting during installation. The positioning groove 42 and the positioning hole 41 are machined with high precision using a CNC machining center to ensure that the dimensional tolerances are controlled within a very small range to meet production requirements.

[0033] When installing busbar 3, first, invert busbar 3 is placed in the positioning groove 42 of auxiliary installation mechanism 4 according to its corresponding position. Because the positioning groove 42 is designed to fit tightly against busbar 3, busbar 3 can be positioned quickly and accurately. After the tabs are shaped and positioned, the inverted battery 1 is moved above auxiliary installation mechanism 4, aligning the battery tabs 11 with the corresponding positions of busbar 3. Then, the battery tabs 11 are pressed into busbar 3 until the battery tongue 12 is completely attached to the upper surface of auxiliary installation mechanism 4. This attachment is maintained for 3 seconds to ensure a stable and reliable connection between battery 1 and busbar 3. During this process, the upper edge of auxiliary installation mechanism 4 engages with the battery tongue 12 to hold the battery 1 in place, preventing busbar 3 from being improperly installed and thus ensuring installation quality.

[0034] The busbar 3 includes a positioning block 33 and a bayonet 31, with an inner groove 32 on the bayonet 31. The positioning block 33 is used to initially position the busbar 3 during installation, ensuring it can be quickly and accurately placed into the positioning groove 42 of the auxiliary installation mechanism 4. The design of the bayonet 31 and the inner groove 32 increases the connection strength and stability between the busbar 3 and the battery tab 11. The shape and size of the bayonet 31 match the shape of the battery tab 11, allowing it to firmly grip the tab when it is pressed into the busbar 3, preventing it from loosening or falling off. The inner groove 32 further enhances this connection, resulting in a tighter contact between the busbar 3 and the battery tab 11 and better conductivity.

[0035] By adjusting and positioning the mechanical structure, weld-free installation of the busbars is achieved, completely eliminating the risk of tab melting caused by traditional welding processes. This significantly improves the quality stability of battery products and reduces short-term return rates. For battery manufacturers, this means reduced after-sales costs and enhanced brand reputation. The weld-free process greatly simplifies the production process and improves production efficiency. Traditional welding processes require complex equipment and skilled operators, while this device is simple to operate. Only adjustments to components such as screws and pressure plates are needed to install busbars for different battery models, saving significant manpower and time costs. Simultaneously, since high-temperature welding is eliminated, energy costs are also significantly reduced, aligning with the modern industrial trend of energy conservation and emission reduction.

[0036] This device is highly versatile and can adapt to the production of various battery models. By adjusting the longitudinal screw 21 and the transverse screw 22, the internal dimensions of the shaping and positioning mechanism 2 can be quickly changed to meet the shaping and positioning needs of battery tabs of different sizes. This has high practical value for battery manufacturers, enabling them to flexibly respond to diverse market demands.

[0037] Example 2: Refer to Figures 1 to 6 The longitudinal screw 21 and the transverse screw 22 are perpendicular to each other to precisely adjust the internal dimensions of the mechanism. The screws are made of high-strength alloy steel with a surface hardening treatment to ensure high precision during frequent adjustments. Their threaded portion features a trapezoidal thread design, providing good self-locking properties and high transmission efficiency, enabling precise control of the movement distance of the fixed block 23.

[0038] In practice, the operator rotates the screw according to the battery model to adjust the internal dimensions of the shaping and positioning mechanism 2 to match the battery tab size. Small batteries require screwing the screw in to reduce the internal dimensions, while large batteries require screwing the screw out to increase the internal dimensions.

[0039] The fixing block 23 is a key component connecting the longitudinal screw 21 and the transverse screw 22, and it has threaded holes inside that mate with the screws. It is made of aluminum alloy, ensuring sufficient strength while effectively reducing the weight of the device. Several pressure plates 24 are evenly distributed on one side of the fixing block 23, which can uniformly compress the battery tabs 11. The pressure plates 24 are made of rigid plastic, possessing good insulation and wear resistance, effectively correcting the tabs while avoiding damage.

[0040] Spring 25 is installed below baffle 26. When the transverse screw 22 rotates inward, the fixing block 23 moves laterally, compressing spring 25. The compressed spring 25 generates a reaction force, which is transmitted to the pressure plate 24 through the fixing block 23, thereby achieving the compression and correction of the battery tab 11. Spring 25 is made of stainless steel, possessing good elasticity and corrosion resistance, and is suitable for harsh production environments.

[0041] The pressure plate 24 compresses the electrode tab under the action of the spring 25. The degree of compression of the pressure plate 24 is related to the degree of compression of the spring 25. If the electrode tab is thick, the distance between the two pressure plates 24 is larger, and the compression distance of the spring 25 is smaller. If the electrode tab is thin, the distance between the two pressure plates 24 is smaller, and the compression distance of the spring 25 is larger.

[0042] The baffle 26 is located on one side of the fixing block 23, and its main function is to limit the position of the battery 1 that is upside down on the shaping and positioning mechanism 2. It is made of engineering plastic, which has high strength and rigidity and can withstand the weight of the battery 1 and various external forces during the production process. The baffle 26 cooperates with the battery tongue 12. When the battery 1 is upside down on the shaping and positioning mechanism 2, the baffle 26 can accurately fit into the battery tongue 12, ensuring that the battery 1 is in an accurate position and providing stable support for the subsequent shaping and installation process.

[0043] The auxiliary installation mechanism 4 is a precise positioning and support platform for the installation of the busbar 3, ensuring that the busbar 3 is accurately connected to the battery tab 11.

[0044] The auxiliary installation mechanism 4 is equipped with a positioning groove 42, the size and shape of which closely match the busbar 3 to ensure the correct position and stable posture of the busbar 3 during installation. A positioning hole 41 is provided on one side of the positioning groove 42 to further secure the busbar 3 and prevent displacement during installation. Both are manufactured with high precision using a CNC machining center, resulting in extremely small dimensional tolerances that meet production requirements.

[0045] When installing busbar 3, it is first necessary to invert it into the positioning groove 42 of the auxiliary installation mechanism 4. This positioning groove 42 is specially designed according to the shape and size of busbar 3, and the two fit tightly together, enabling quick and accurate initial positioning. This tight fit design ensures the stability and accuracy of busbar 3 during installation, laying a solid foundation for subsequent installation steps. After completing the tab shaping and positioning, move the inverted battery 1 above the auxiliary installation mechanism 4. At this time, it is necessary to precisely align the battery tab 11 with the busbar 3. After alignment, the operator slowly and evenly applies pressure to press the battery tab 11 into the busbar 3 until the battery tongue 12 is completely attached to the upper surface of the auxiliary installation mechanism 4. After achieving this attachment, maintain pressure for 3 seconds to ensure the stability and reliability of the connection. There is a tight fit between the upper edge of the auxiliary installation mechanism 4 and the battery tongue 12. This design can effectively lock the battery 1 in place and prevent the busbar 3 from being misaligned during installation. This locking design is a key factor in ensuring installation quality. It guarantees a tight and secure connection between the busbar 3 and the battery tab 11. Through clever adjustment and positioning of the mechanical structure, the entire installation process achieves weld-free installation of the busbar. This innovative installation method completely eliminates the risk of tab melting that may occur in traditional welding processes, significantly improving the quality stability of battery products. At the same time, this weld-free installation method also reduces the short-term return rate of battery products, providing a more reliable and stable guarantee for battery production and use.

[0046] This device is simple to operate; only the screws and pressure plates need to be adjusted to install busbars for different battery models, saving significant manpower and time costs. Furthermore, since high-temperature welding is eliminated, energy costs are greatly reduced, aligning with the modern industrial trend of energy conservation and emission reduction. The device is highly versatile and can adapt to the production of various battery models. By adjusting the longitudinal screw 21 and the transverse screw 22, the internal dimensions of the shaping and positioning mechanism 2 can be quickly changed to meet the shaping and positioning needs of battery tabs of different sizes. This has high practical value for battery manufacturers, enabling them to flexibly respond to diverse market demands.

[0047] For those skilled in the art, the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

Claims

1. A welding-free busbar installation device, characterized in that, It includes a shaping and positioning mechanism and an auxiliary installation mechanism. The shaping and positioning mechanism is equipped with longitudinal screws and transverse screws. The longitudinal screws and transverse screws are connected by a fixing block. Several pressure plates are set on one side of the fixing block, and the battery tabs on the battery are snapped into the pressure plates.

2. The installation device for a weld-free busbar according to claim 1, characterized in that, The busbar includes a positioning block and a bayonet, and the bayonet has an inner groove.

3. The installation device for a weld-free busbar according to claim 1 or 2, characterized in that, The auxiliary installation mechanism is equipped with a positioning groove, and one side of the positioning groove is a positioning hole.

4. The installation device for a weld-free busbar according to claim 3, characterized in that, During installation, the busbar is inverted and embedded into the positioning groove.

5. The installation device for a weld-free busbar according to claim 3, characterized in that, During installation, the battery tongue should fit against the upper surface of the auxiliary installation mechanism.

6. The installation device for a weld-free busbar according to claim 1 or 5, characterized in that, A baffle is provided on one side of the fixing block.

7. The installation device for a weld-free busbar according to claim 1 or 5, characterized in that, A spring is located below the baffle; squeezing the spring will cause the pressure plate to move.

8. The installation device for a weld-free busbar according to claim 1 or 5, characterized in that, Several horizontal screws are connected side by side to the fixed block.

9. The installation device for a weld-free busbar according to claim 8, characterized in that, The baffle on the shaping and positioning mechanism cooperates with the battery tongue to limit the battery position.

10. The installation device for a weld-free busbar according to claim 1 or 9, characterized in that, The fixing block has threaded holes inside that mate with the transverse screw and the longitudinal screw.

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