Novel anode and cathode aluminum block
By setting different sizes of anti-stup grooves and insulated mounting seats on the positive and negative aluminum blocks of the battery, the assembly direction error and torsion of aluminum blocks in battery production is solved, and higher assembly accuracy and economy are achieved Benefits extend the service life of the battery connection.
Patent Information
- Application Number
- CN202323330514.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-07
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2033-12-07
AI Technical Summary
In battery production, the assembly of positive and negative electrode aluminum blocks is prone to reverse assembly, which leads to production difficulties. The gap problem of the existing riveting structure leads to large twisting, affecting the life of the connecting piece and increasing the cost of material.
A new positive and negative electrode aluminum block was designed, with anti-dust grooves of different sizes on both sides, and a limit structure was set on the insulated mount to ensure the correct assembly direction and position, reduce material use, improve assembly accuracy and torsional stability .
It completely eliminates the errors in the aluminum block assembly, saves materials, improves the accuracy and economic benefits of battery assembly, and enhances the connection reliability and service time of the aluminum block.
Smart Images
Figure CN222261314U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of battery structures, in particular to a novel positive and negative aluminum block installed on a battery top cover. Background Art
[0002] During the battery production process, after the winding and boxing of the battery cells are completed, the battery top cover needs to be set to weld and package the battery box. After the packaging is completed, the positive and negative ears of the battery are insulated from the top cover and connected to the aluminum block through the top cover. The aluminum block provides conductivity and positioning for the battery to ensure that the positive and negative electrodes inside the battery can be connected to the external circuit. However, when assembling the aluminum blocks, due to the large backlog of positive and negative aluminum blocks, the positive and negative aluminum blocks are often installed upside down, which brings difficulties to battery production. At the same time, the existing positive and negative aluminum blocks account for a large part of the mass of the top cover, and the material cost is high, which increases the cost of battery production. In addition, the riveted structure has a large torsion due to the gap problem after assembly, which affects the life of the connecting piece. Utility Model Content
[0003] The utility model provides a novel positive and negative aluminum block. By arranging a fool-proof groove on the positive aluminum block and the negative aluminum block, the reverse installation of the aluminum block can be completely prevented, the material consumption can be saved, the torsion of the aluminum block can be reduced, and the reliability of the top cover can be increased.
[0004] In order to achieve the above purpose, the following technical solutions are adopted.
[0005] The utility model discloses a novel positive and negative aluminum block, comprising a positive aluminum block and a negative aluminum block installed on a mounting groove of a battery pack, both sides of the positive aluminum block and the negative aluminum block are provided with anti-foolproof grooves, the sizes of the anti-foolproof grooves on both sides are different, an insulating mounting seat is provided between the mounting groove and the positive aluminum block and the negative aluminum block, the insulating mounting seat is embedded in the mounting groove, the positive aluminum block and the negative aluminum block are embedded in the insulating mounting seat, and the insulating mounting seat and the mounting groove are both provided with limiting structures matched with the anti-foolproof grooves.
[0006] In the above technical solution, the positive aluminum block and the negative aluminum block are arranged on an insulating mounting seat, and the insulating mounting seat is arranged on the mounting groove of the top cover of the battery pack. The insulating mounting seat has an insulating effect. The setting of the insulating mounting seat can prevent the positive aluminum block and the negative aluminum block from being directly short-circuited through the top cover to cause a short circuit in the battery, thereby ensuring the safety and reliability of the circuit. Anti-fool grooves are arranged on the positive aluminum block and the negative aluminum block, and a limiting structure is arranged on the insulating mounting seat and the mounting groove. The insulating mounting seat is installed on the mounting groove through the limiting structure. The limiting structure of the insulating mounting seat cooperates with the anti-fool groove, and the anti-fool grooves on both sides of the positive aluminum block and the negative aluminum block are set to different sizes, which can ensure that during the assembly process, the positive aluminum block and the negative aluminum block can only be inserted into the insulating mounting seat in the correct direction and position. The anti-fool groove can prevent incorrect installation during the assembly process and improve the accuracy and efficiency of battery assembly. By setting the anti-fool groove, the material used for the positive aluminum block and the negative aluminum block can be reduced, and the economic benefit can be improved. By setting the anti-foolproof groove, the concave side wall of the anti-foolproof groove abuts against the raised side wall of the insulating mounting seat limiting structure, providing more torsion limits for the positive aluminum sheet and the negative aluminum sheet, solving the problem of large torsion due to the existence of gaps after assembly, ensuring the reliability and stability of the connection between the positive aluminum sheet and the negative aluminum sheet, and thus increasing the service life of the positive aluminum sheet and the negative aluminum sheet.
[0007] Furthermore, the positive electrode aluminum block is formed by stamping an aluminum coil, and the negative electrode aluminum block is formed by stamping a copper-aluminum composite coil.
[0008] In the above technical scheme, efficient production of positive and negative aluminum blocks can be achieved by feeding coils and stamping through molds. The negative and positive aluminum blocks are produced using different coils, so that the positive and negative aluminum blocks have different electrical potentials.
[0009] Furthermore, the middle part of the negative electrode aluminum block is a copper sheet.
[0010] In the above technical solution, the middle part of the negative aluminum block is a copper sheet, which can better distinguish the positive aluminum block from the negative aluminum block, improve the work efficiency during assembly, and the copper sheet, as an excellent conductive material, can provide better conductivity. By embedding the copper sheet into the negative aluminum block, the structural stability of the negative electrode can be enhanced. Copper has high strength and hardness, which can increase the deformation and extrusion resistance of the negative aluminum block, thereby improving the structural stability and durability of the battery.
[0011] Furthermore, the top corners of the positive electrode aluminum block and the negative electrode aluminum block are both rounded structures.
[0012] In the above technical solution, the chamfered corner structure at the top corners of the positive aluminum block and the negative aluminum block can make it easier to place them in the insulating mounting seat during assembly, which is convenient for assembly. After the assembly is completed, the chamfered corner structure can reduce the stress concentration at the top corners of the positive aluminum block and the negative aluminum block, which can easily lead to material cracking or breakage. By adopting the chamfered corner structure, the stress can be dispersed to the surrounding area, reducing the stress of the material, thereby improving the strength and durability of the positive aluminum block and the negative aluminum block.
[0013] Furthermore, the length of the negative electrode aluminum block is different from the length of the positive electrode aluminum block.
[0014] In the above technical solution, the lengths of the positive aluminum block and the negative aluminum block are set to be different. When the assemblers are assembling the positive aluminum block and the negative aluminum block, if the assemblers fail to distinguish the positive aluminum block and the negative aluminum block at the first time, the setting of the structural length deviation also has an anti-mistake effect, so that the positive aluminum block and the negative aluminum block will not be installed upside down.
[0015] Furthermore, the positive electrode aluminum block and the negative electrode aluminum block are riveted to the positive electrode insulating mounting seat and the negative electrode insulating mounting seat respectively.
[0016] In the above technical solution, riveting is a commonly used connection method. Reliable connection can be achieved by connecting the positive and negative aluminum blocks with the positive and negative insulating mounting seats using rivets. Riveting provides a strong connection strength that can withstand the vibration and stress of the battery during use and maintain the stability of the connection. The riveted connection has good durability and fatigue resistance, and can maintain a stable connection state during long-term use and cyclic charge and discharge, which helps to extend the life of the battery and improve the reliability of the battery.
[0017] Furthermore, the insulating mounting seat is a plastic structure.
[0018] In the above technical solution, the insulating mounting seat is set as a plastic structure, and the plastic insulating mounting seat is used as a supporting insulating structure for the positive aluminum block and the negative aluminum block. It has sufficient supporting strength and good insulation effect. At the same time, the production and processing technology of the plastic material is mature, the process is simple, and the cost is low.
[0019] Furthermore, a battery pole is provided in the middle of the mounting groove, and holes adapted to the battery pole are provided on both the positive aluminum block and the negative aluminum block.
[0020] In the above technical solution, the battery poles are connected to the positive and negative ear pieces of the battery, corresponding to the positive and negative electrical properties, and holes adapted to the battery poles are provided in the positive aluminum block and the negative aluminum block, so that the positive and negative battery poles can be respectively connected and conducted with the positive aluminum block and the negative aluminum block, thereby ensuring the reliability and stability of the conductivity of the positive aluminum block and the negative aluminum block.
[0021] Compared with the prior art, the new positive and negative aluminum blocks of the utility model have the following beneficial effects:
[0022] The utility model sets fool-proof grooves on both sides of the positive aluminum block and the negative aluminum block, and sets the fool-proof grooves on both sides to different sizes, which can ensure that during the assembly process, the positive aluminum block and the negative aluminum block can only be inserted into the insulating mounting seat in the correct direction and position. The fool-proof grooves can prevent the incorrect installation of the positive and negative aluminum block structures during the assembly process, thereby improving the accuracy and efficiency of battery assembly; part of the materials used for the positive aluminum block and the negative aluminum block can be saved, and the economic benefit can be improved; the concave side walls of the fool-proof grooves abut against the raised side walls of the insulating mounting seat limiting structure, providing more torsion limits for the positive aluminum sheet and the negative aluminum sheet, solving the problem of large torsion due to the existence of a gap after assembly, and there is no need to set a ceramic sheet for torsion limit, thereby ensuring the reliability and stability of the connection between the positive aluminum sheet and the negative aluminum sheet, thereby improving the service life of the positive aluminum sheet and the negative aluminum sheet. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is an exploded view of a new type of positive and negative aluminum blocks and a battery top cover of the utility model;
[0024] Figure 2 This is a top view of a new type of positive and negative aluminum blocks and a battery top cover of the utility model;
[0025] Figure 3 for Figure 2 Enlarged view of part A.
[0026] The figure marks in the figure are: 1-positive aluminum block; 2-negative aluminum block; 3-insulating mounting seat; 4-mounting groove; 5-pole; 6-top cover; 11-anti-foolproof groove; 111-long anti-foolproof groove; 112-short anti-foolproof groove; 12-rounded corner structure; 31-first limiting structure; 41-second slot limiting structure. DETAILED DESCRIPTION
[0027] The following is a further detailed description of a novel positive and negative aluminum block of the utility model in combination with specific embodiments and drawings.
[0028] Reference Figures 1 to 3A non-limiting embodiment of the utility model, a novel positive and negative aluminum block 2, includes a positive aluminum block 1 and a negative aluminum block 2 installed on a mounting groove 4 of a battery pack, both sides of the positive aluminum block 1 and the negative aluminum block 2 are provided with anti-foolproof grooves 11, and the sizes of the anti-foolproof grooves 11 on both sides are different, an insulating mounting seat 3 is provided between the mounting groove 4 and the positive aluminum block 1 and the negative aluminum block 2, the insulating mounting seat 3 is embedded in the mounting groove 4, the positive aluminum block 1 and the negative aluminum block 2 are embedded in the insulating mounting seat 3, and the insulating mounting seat 3 and the mounting groove 4 are provided with a limiting structure compatible with the anti-foolproof groove 11. In the above technical solution, the positive aluminum block 1 and the negative aluminum block 2 are arranged on the insulating mounting seat 3, and the insulating mounting seat 3 is arranged on the mounting groove 4 of the battery pack top cover 6. The insulating mounting seat 3 has an insulating effect. The setting of the insulating mounting seat 3 can prevent the positive aluminum block 1 and the negative aluminum block 2 from being directly short-circuited through the top cover 6 to cause a short circuit in the battery, thereby ensuring the safety and reliability of the circuit. An anti-fool groove 11 is arranged on the positive aluminum block 1 and the negative aluminum block 2, and a limiting structure is arranged on the insulating mounting seat 3 and the mounting groove 4. The insulating mounting seat 3 is installed on the mounting groove 4 through the limiting structure. The limiting structure of the insulating mounting seat 3 cooperates with the foolproof groove 11, and the foolproof grooves 11 on both sides of the positive aluminum block 1 and the negative aluminum block 2 are set to different sizes. Specifically, the lengths of the foolproof grooves 11 on both sides of the positive aluminum block 1 and the negative aluminum block 2 are set to different lengths. Of course, the grooves on both sides can also be set to different depths. This ensures that during the assembly process, the positive aluminum block 1 and the negative aluminum block 2 can only be inserted into the insulating mounting seat 3 in the correct direction and position. The foolproof groove 11 can prevent incorrect installation during the assembly process and improve the accuracy and efficiency of battery assembly. By setting the foolproof groove 11, the material used for the positive aluminum block 1 and the negative aluminum block 2 can be reduced, and the economic benefits can be improved. By setting the foolproof groove 11, the concave side wall of the foolproof groove 11 abuts against the raised side wall of the limiting structure of the insulating mounting seat 3, providing more torsion limits for the positive and negative aluminum sheets, solving the problem of large torsion due to the gap after assembly, ensuring the reliability and stability of the connection between the positive and negative aluminum sheets, and thus improving the service life of the positive and negative aluminum sheets. Figure 3 As shown, the left side of the positive aluminum block 1 and the negative aluminum block 2 is set as a long fool-proof groove 111, and the right side is set as a short fool-proof groove 112; Figure 1 As shown, the limiting structure of the insulating mounting seat 3 is a first limiting structure 31 , and the limiting structure of the mounting groove 4 is a second limiting structure 41 .
[0029] Reference Figures 1 to 3In a non-limiting embodiment of the utility model, the positive aluminum block 1 is formed by stamping an aluminum coil, and the negative aluminum block 2 is formed by stamping a copper-aluminum composite coil. In the above technical solution, the positive aluminum block 1 and the negative aluminum block 2 can be efficiently produced by feeding the coil and stamping the mold. The negative aluminum block 2 and the positive aluminum block 1 are produced by using different coils, so that the positive aluminum block 1 and the negative aluminum block 2 have different potentials.
[0030] Reference Figures 1 to 3 , a non-limiting embodiment of the utility model, the middle part of the negative aluminum block 2 is a copper sheet. In the above technical solution, the middle part of the negative aluminum block 2 is a copper sheet, which can better distinguish the positive aluminum block 1 and the negative aluminum block 2, improve the work efficiency during assembly, and at the same time, the copper sheet, as an excellent conductive material, can provide better conductivity. By embedding the copper sheet into the negative aluminum block 2, the structural stability of the negative electrode can be enhanced. Copper has high strength and hardness, which can increase the deformation and extrusion resistance of the negative aluminum block 2, thereby improving the structural stability and durability of the battery.
[0031] Reference Figures 1 to 3 In a non-limiting embodiment of the utility model, the top corners of the positive aluminum block 1 and the negative aluminum block 2 are both chamfered structures 12. In the above technical solution, the chamfered structures 12 at the top corners of the positive aluminum block 1 and the negative aluminum block 2 can be better placed in the insulating mounting seat 3 during assembly, which is convenient for assembly. After the assembly is completed, the chamfered structure 12 can reduce the stress concentration at the top corners of the positive aluminum block 1 and the negative aluminum block 2, and the stress concentration can easily cause the material to crack or break. By adopting the chamfered structure 12, the stress can be dispersed to the surrounding area, reducing the stress of the material, thereby improving the strength and durability of the positive aluminum block 1 and the negative aluminum block 2.
[0032] Reference Figures 1 to 3 , a non-limiting embodiment of the utility model, the length of the negative aluminum block 2 is greater than the length of the positive aluminum block 1. In the above technical solution, the negative aluminum block 2 is stamped from a copper-aluminum composite roll, and the copper-aluminum composite roll is about 2mm wider than the width of the aluminum roll. The length of the negative aluminum block 2 is about 2mm greater than the positive aluminum block 1. When the assembler assembles the positive aluminum block 1 and the negative aluminum block 2, if the assembler does not distinguish the positive aluminum block 1 and the negative aluminum block 2 at the first time, the setting of the length deviation of the structure also has a fool-proof effect, so that the positive aluminum block 1 and the negative aluminum block 2 will not be installed reversely. Of course, the length of the positive aluminum block 1 can also be set to be greater than the length of the negative aluminum block 2.
[0033] Reference Figures 1 to 3In a non-limiting embodiment of the utility model, the positive aluminum block 1 and the negative aluminum block 2 are riveted to the positive insulating mounting seat 3 and the negative insulating mounting seat 3, respectively. In the above technical scheme, riveting is a commonly used connection method. By using rivets to connect the positive aluminum block 1 and the negative aluminum block 2 with the positive insulating mounting seat 3 and the negative insulating mounting seat 3, a reliable connection can be achieved. Riveting provides a strong connection strength, which can withstand the vibration and stress of the battery during use and maintain the stability of the connection. The riveted connection has good durability and fatigue resistance, and can maintain a stable connection state during long-term use and cyclic charge and discharge, which helps to extend the life of the battery and improve the reliability of the battery.
[0034] Reference Figures 1 to 3 In a non-limiting embodiment of the utility model, the insulating mounting seat 3 is a plastic structure. In the above technical solution, the insulating mounting seat 3 is set as a plastic structure, and the plastic insulating mounting seat 3 is used as a supporting insulating structure for the positive aluminum block 1 and the negative aluminum block 2, which has sufficient supporting strength and good insulation effect. At the same time, the production and processing technology of the plastic material is mature, the process is simple, and the cost is low.
[0035] Reference Figures 1 to 3 In a non-limiting embodiment of the utility model, a battery pole 5 is provided in the middle of the installation groove 4, and holes matching the battery pole 5 are provided on the positive aluminum block 1 and the negative aluminum block 2. In the above technical scheme, the battery pole 5 is connected with the positive and negative tabs of the battery, and the positive and negative poles are electrically connected by holes matching the battery pole 5 provided in the positive aluminum block 1 and the negative aluminum block 2, so that the positive and negative battery poles 5 can be respectively connected and conducted with the positive aluminum block 1 and the negative aluminum block 2, thereby ensuring the reliability and stability of the conduction of the positive aluminum block 1 and the negative aluminum block 2.
[0036] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0038] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0039] The above embodiments are only specific embodiments of the present invention, and their descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, and these obvious replacement forms all belong to the protection scope of the present invention.
Claims
1. A novel positive and negative aluminum block, comprising a positive aluminum block and a negative aluminum block mounted on a mounting slot of a battery pack, characterized in that: Both sides of the positive aluminum block and the negative aluminum block are provided with anti-foolproof grooves, and the sizes of the anti-foolproof grooves on both sides are different. An insulating mounting seat is provided between the mounting groove and the positive aluminum block and the negative aluminum block. The insulating mounting seat is embedded in the mounting groove. The positive aluminum block and the negative aluminum block are embedded in the insulating mounting seat. The insulating mounting seat and the mounting groove are both provided with limiting structures that are compatible with the anti-foolproof grooves.
2. According to claim 1, a new type of positive and negative aluminum block is characterized in that: The positive electrode aluminum block is formed by stamping an aluminum coil, and the negative electrode aluminum block is formed by stamping a copper-aluminum composite coil.
3. According to claim 2, a new type of positive and negative aluminum block is characterized in that: The middle part of the negative electrode aluminum block is a copper sheet.
4. A novel positive and negative aluminum block according to any one of claims 1 to 3, characterized in that: The top corners of the positive electrode aluminum block and the negative electrode aluminum block are both rounded structures.
5. According to claim 4, a new type of positive and negative aluminum block is characterized in that: The length of the negative electrode aluminum block is different from that of the positive electrode aluminum block.
6. According to claim 4, a new type of positive and negative aluminum block is characterized in that: The positive electrode aluminum block and the negative electrode aluminum block are riveted to the positive electrode insulating mounting seat and the negative electrode insulating mounting seat respectively.
7. According to claim 1, a novel positive and negative aluminum block is characterized in that: The insulating mounting seat is a plastic structure.
8. According to claim 1, a novel positive and negative aluminum block is characterized in that: A battery pole is arranged in the middle of the installation groove, and holes matching the battery pole are arranged on the positive aluminum block and the negative aluminum block.