Connecting structure of battery cover plate and lower plastic part

Abstract

The utility model discloses a connecting structure of a battery cover plate and a lower plastic part, which comprises the battery cover plate and the lower plastic part, the bottom of the battery cover plate is provided with an embedded frame with a rectangular frame structure, the inner wall of the edge of the top end of the lower plastic part is provided with a sunken part matched with the embedded frame structure, and the lower plastic part is provided with a groove matched with the embedded frame structure. A plurality of elastic pressing pieces are evenly arranged on the side inner wall of the sunken part, butt joint sleeves are arranged at the four corners of the bottom of the battery cover plate, butt joint columns in one-to-one correspondence with the butt joint sleeves are arranged at the four corners of the top of the lower plastic part, and the outer portion of the connecting position of the battery cover plate and the lower plastic part is integrally sleeved with a sealing frame. According to the connecting structure of the battery cover plate and the lower plastic part, the connecting stability and the sealing performance are effectively improved, and the aging problem of a traditional bonding method and material damage possibly caused by welding are avoided, so that the reliability and the durability of the whole structure are enhanced.

Description

Technical Field

[0001] This utility model relates to the field of battery component manufacturing technology, specifically to a connection structure between a battery cover and a lower plastic part. Background Technology

[0002] With the widespread use of electronic devices, the requirements for battery performance are increasing. Batteries are not only required to have high capacity and long lifespan, but also higher standards for safety and durability. As a crucial component of the battery, the battery cover must not only ensure the safe sealing of internal components but also withstand the influence of the external environment.

[0003] In existing technologies, battery covers are typically connected to the lower plastic parts by welding, bonding, or mechanical fixing to achieve effective protection and sealing of the battery interior. However, these connection methods have certain limitations. For example, when using bonding, the adhesion between the cover and the lower plastic parts may decrease after prolonged use due to the aging of the adhesive, thus affecting the stability and sealing of the overall structure and potentially causing safety hazards. In addition, uneven heating during welding may also cause material deformation or damage, affecting the quality of the final product. Utility Model Content

[0004] The purpose of this utility model is to provide a connection structure between a battery cover and a lower plastic part, so as to solve the problems mentioned in the background art, such as the decrease in connection strength and damage to sealing caused by glue aging in the traditional bonding method during the connection process between the battery cover and the lower plastic part, and the potential for material deformation or damage during the welding process.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a connection structure between a battery cover and a lower plastic component, comprising a battery cover and a lower plastic component. The bottom of the battery cover is provided with an embedded frame having a rectangular frame structure. The inner wall of the top edge of the lower plastic component is provided with a recess that matches the embedded frame structure. A plurality of elastic pressure members are evenly provided on the inner side wall of the recess. The elastic pressure members apply pressure evenly to the outer side wall of the embedded frame through their own elastic deformation. Furthermore, the bottom four corners of the battery cover are provided with mating sleeves, and the top four corners of the lower plastic component are provided with mating posts that correspond one-to-one with the mating sleeves. Finally, a sealing frame is integrally fitted around the connection between the battery cover and the lower plastic component.

[0006] Preferably, a plurality of notches are evenly provided on the inner walls of the recessed portion, the inner side of the elastic pressure member is welded and fixed to the inner wall of the notch of the recessed portion by a connector, and the elastic pressure member is a U-shaped structure made of spring steel, and the interior of the elastic pressure member is filled with an elastic block.

[0007] Preferably, a sealing ring is provided on the inner wall of the sealing frame, and the sealing ring is attached to the outside of the connection between the battery cover and the lower plastic part. Furthermore, both sides of the top of the sealing frame are connected to the screw holes provided on the outer wall of the battery cover through positioning screws.

[0008] Preferably, each of the four corners of the top of the lower plastic part is provided with a round hole, and the docking post is vertically fixed in the round hole at the four corners of the top of the lower plastic part, and a magnet is welded and fixed to the top of the docking post.

[0009] Preferably, an elastic ring is provided at the connection between the mating sleeve and the battery cover, and the lower end of the elastic ring is embedded in the edge of the top circular hole of the lower plastic part.

[0010] Preferably, the inner frame has a plurality of slots uniformly provided on its outer side wall that match the outer end structure of the elastic pressure member, and the inner frame and the recessed part are positioned correspondingly.

[0011] Compared with existing technologies, the beneficial effects of this utility model are as follows: the connection structure between the battery cover and the lower plastic part effectively improves the connection stability and sealing performance, avoiding the aging problems of traditional bonding methods and the material damage that may be caused by welding, thereby enhancing the reliability and durability of the overall structure. The connection structure between the battery cover and the lower plastic part, through the precise fit design of the embedded frame and the recessed portion, combined with the uniform pressure provided by the elastic pressure member, not only ensures a tight connection between the battery cover and the lower plastic part, but also allows for a certain degree of tolerance adjustment, further improving the flexibility and reliability of assembly. At the same time, the design of the mating sleeve and mating post simplifies the installation process, and the application of the sealing frame provides an additional protective layer for the entire connection area, effectively resisting the influence of external environmental factors. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the connection structure between the battery cover and the lower plastic part according to the present invention;

[0013] Figure 2 This is a partial structural diagram of the connection between the battery cover and the lower plastic part according to the present invention.

[0014] Figure 3 This is a schematic diagram of the sequential connection structure of the battery cover, the lower plastic part, and the sealing frame, which is a connection structure between the battery cover and the lower plastic part according to this utility model.

[0015] Figure 4 This is a schematic diagram of the bottom structure of the battery cover, which is a connection structure between the battery cover and the lower plastic part according to this utility model.

[0016] In the diagram: 1. Battery cover; 2. Lower plastic part; 3. Sealing frame; 4. Embedded frame; 5. Recessed part; 6. Elastic pressure part; 7. Connecting sleeve; 8. Connecting post; 9. Sealing ring; 10. Elastic ring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-4This utility model provides a technical solution: a connection structure between a battery cover and a lower plastic part, including a battery cover 1 and a lower plastic part 2. An embedded frame 4 with a rectangular frame structure is welded and fixed to the bottom of the battery cover 1. A recess 5 matching the structure of the embedded frame 4 is provided on the inner wall of the top edge of the lower plastic part 2. Several elastic pressure members 6 are evenly provided on the inner side wall of the recess 5. These elastic pressure members 6 apply pressure evenly to the outer side wall of the embedded frame 4 through their own elastic deformation. A mating sleeve 7 is welded and fixed to each of the four corners of the bottom of the battery cover 1. A mating post 8 corresponding to the mating sleeve 7 is provided at each of the four corners of the top of the lower plastic part 2. A sealing frame 3 is integrally fitted around the connection between the battery cover 1 and the lower plastic part 2. The sealing frame 3 is also rectangular in shape. The battery cover 1 features a frame structure that allows it to be precisely embedded into the recessed portion 5 of the lower plastic part 2 via an inner frame 4. The elastic pressure member 6 automatically adjusts and tightly fits the inner frame 4 due to its elastic properties, ensuring a stable connection between the two components without relying on traditional methods such as glue or welding. This avoids problems caused by aging or uneven heating. Furthermore, the cooperation between the mating sleeve 7 and the mating post 8 not only further enhances the overall structural stability but also simplifies the assembly process, making installation more convenient and accurate. The sealing frame 3 surrounds the connection between the battery cover 1 and the lower plastic part 2, providing additional sealing protection and effectively preventing external moisture and dust from entering and affecting battery performance. This connection structure solves the problem of adhesive aging in existing technologies. This design significantly improves the reliability and durability of the connection between the battery cover 1 and the lower plastic part 2, mitigating potential problems during the welding process, such as material damage and reduced sealing. It provides better protection and sealing for the battery. Several notches are evenly distributed on the inner walls of the recessed portion 5. The inner side of the elastic pressure member 6 is welded and fixed to the inner wall of the notches in the recessed portion 5 via connectors. The elastic pressure member 6 is a U-shaped structure made of spring steel, and its interior is filled with elastic blocks. When the embedded frame 4 is inserted into the recessed portion 5 of the lower plastic part 2, the elastic pressure member 6 can generate effective elastic deformation, allowing it to tightly fit the outer wall of the embedded frame 4. This not only ensures a stable connection between the embedded frame 4 and the recessed portion 5 but also allows for a certain degree of elastic deformation. The assembly tolerance ensures good contact and pressure distribution even with minor dimensional differences. The elastic pressure member 6 is firmly welded to the inner wall of the recess 5 via connectors, providing additional stability and preventing loosening or detachment during long-term use. This configuration also simplifies the installation process and reduces the high dependence on precision. A sealing ring 9 is provided on the inner wall of the sealing frame 3, and the sealing ring 9 fits against the outside of the connection between the battery cover 1 and the lower plastic part 2. Both sides of the top of the sealing frame 3 are connected to the screw holes on the outer wall of the battery cover 1 via positioning screws. This structure ensures that the sealing ring 9 fits tightly against the connection between the battery cover 1 and the lower plastic part 2, forming an effective sealing barrier.To prevent moisture, dust, and other contaminants from entering the battery and affecting its performance, the lower plastic part 2 has round holes at each of its four corners. The mating posts 8 are vertically welded and fixed into these holes, and magnets are welded to the top of each post 8. When the battery cover 1 is assembled with the lower plastic part 2, the mating sleeves 7 at the four corners of the bottom of the battery cover 1 precisely fit onto the mating posts 8 on the lower plastic part 2. The magnets at the top of the mating posts 8 not only enhance the connection stability between the mating sleeves 7 and the posts 8, but also ensure quick and accurate alignment and tight fit through magnetic guidance, simplifying the assembly process and improving efficiency. The connection between the mating sleeves 7 and the battery cover 1 is fitted with an elastic... The elastic ring 10 is embedded at the edge of the top circular hole of the lower plastic part 2. As the battery cover 1 is further tightened, the lower end of the elastic ring 10 is embedded at the edge of the top circular hole of the lower plastic part 2. This embedded design enhances the overall structural stability. Several slots that match the outer end structure of the elastic pressure member 6 are evenly distributed on the outer side wall of the embedded frame 4. The positions of the embedded frame 4 and the recessed part 5 correspond. When the embedded frame 4 is inserted into the recessed part 5, the slots on the outer side wall of the embedded frame 4 precisely align with the elastic pressure member 6 on the inner wall of the recessed part 5. Due to its elasticity, the elastic pressure member 6 can tightly engage with these slots, ensuring a tight connection between the embedded frame 4 and the recessed part 5.

[0019] Working principle: When using the connection structure between the battery cover and the lower plastic part, firstly, align and insert the embedded frame 4 at the bottom of the battery cover 1 into the recess 5 on the inner wall of the top edge of the lower plastic part 2. As the embedded frame 4 goes deeper, the evenly distributed slots on its outer side gradually approach the elastic pressure member 6 provided on the inner side wall of the recess 5. When the embedded frame 4 is fully inserted, the elastic pressure member 6 will be tightly locked into these slots due to its own elasticity, ensuring a stable connection. At the same time, the battery cover 1 will drive the four mating sleeves 7 to accurately fit onto the mating posts 8, and the top of the mating posts 8 will be welded to secure them. The fixed magnetic pieces help guide quick and accurate alignment and tight fit. Then, the sealing frame 3 is installed around the connection between the battery cover 1 and the lower plastic part 2. The sealing ring 9 is attached to the outside of the connection between the battery cover 1 and the lower plastic part 2 to form a sealing barrier. Finally, the top two sides of the sealing frame 3 are fixed in the screw holes on the outer wall of the battery cover 1 by positioning screws, completing the entire assembly process. This ensures a stable and sealed connection between the battery cover 1 and the lower plastic part 2, simplifies the assembly process, and improves assembly efficiency and accuracy, thus completing a series of tasks.

[0020] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A connecting structure of a battery cover plate and a lower plastic part, comprising a battery cover plate (1) and a lower plastic part (2), characterized in that: The bottom of the battery cover plate (1) is provided with an embedded frame (4) in the shape of a rectangular frame structure, the inner wall of the top end of the lower plastic part (2) is provided with a recess (5) matching the structure of the embedded frame (4), the side inner wall of the recess (5) is uniformly provided with a plurality of elastic pressing parts (6), the elastic pressing parts (6) uniformly apply pressure to the side outer wall of the embedded frame (4) through elastic deformation, and the four corners of the bottom of the battery cover plate (1) are provided with a butt joint sleeve (7), the four corners of the top of the lower plastic part (2) are provided with a butt joint column (8) corresponding to the butt joint sleeve (7), and the outer part of the connection between the battery cover plate (1) and the lower plastic part (2) is provided with a sealing frame (3).

2. The connecting structure of a battery cover plate and a lower plastic part according to claim 1, characterized in that: The four side inner walls of the recess (5) are uniformly provided with a plurality of notches, the inner side of the elastic pressing part (6) is welded and fixed on the notch inner wall of the recess (5) through a connecting part, the elastic pressing part (6) is made of U-shaped structure of spring steel material, and the inside of the elastic pressing part (6) is filled with an elastic block.

3. The connecting structure of a battery cover plate and a lower plastic part according to claim 1, characterized in that: The inner wall of the sealing frame (3) is provided with a sealing ring (9), the sealing ring (9) is attached to the outside of the connection between the battery cover plate (1) and the lower plastic part (2), and the two sides of the top end of the sealing frame (3) are connected with the screw holes provided on the outer wall of the battery cover plate (1) through positioning screw pins.

4. The connecting structure of a battery cover plate and a lower plastic part according to claim 1, characterized in that: The top of the lower plastic part (2) is provided with a circular hole at each corner, the butt joint column (8) is vertically fixed in the circular hole at each corner of the top of the lower plastic part (2), and a magnet piece is welded and fixed at the top end of the butt joint column (8).

5. The connecting structure of a battery cover plate and a lower plastic part according to claim 4, characterized in that: The connection between the butt joint sleeve (7) and the battery cover plate (1) is provided with an elastic ring (10), and the lower end of the elastic ring (10) is embedded in the circular hole at the top of the lower plastic part (2).

6. The connecting structure of a battery cover plate and a lower plastic part according to claim 1, characterized in that: The side outer wall of the embedded frame (4) is uniformly provided with a plurality of clamping grooves matching the structure of the outer end of the elastic pressing part (6), and the embedded frame (4) corresponds to the position of the recess (5).

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