An end plate with double-sided reinforcing rib structure

Abstract

The utility model discloses a kind of end plate with double-face reinforcing rib structure, belong to battery module accessory technical field, wherein including end plate body, the end plate body is divided into the inner side of the side of battery and the outer side of the side of battery away, end plate body is along self axis symmetry arrangement, several square grooves one and square grooves two are set on outer side, several square grooves one and square grooves two are along end plate body axis symmetry arrangement, several square grooves one and square grooves two form reinforcing rib one, several square grooves three and square grooves four are set on inner side, several square grooves three and square grooves four are corresponding with the position and size of square groove one and square groove two, square groove three and square groove four are less than the quantity of square groove one and square groove two, several square grooves three and square grooves four form reinforcing rib two, the device solves the problem that current battery mould end plate single-face reinforcing rib design has shrinkage mark.

Description

Technical Field

[0001] This utility model belongs to the technical field of battery module accessories, specifically relating to an end plate with a double-sided reinforcing rib structure. Background Technology

[0002] During the assembly of battery modules, the end plate, as a key connecting component, directly affects the overall stability and service life of the battery module due to its structural strength and molding quality. Currently, most end plates used for battery module connections on the market adopt a single-sided reinforcing rib structure to improve the structural rigidity of the end plate.

[0003] However, existing single-sided reinforcing rib end plates have significant drawbacks. To ensure reinforcement, single-sided reinforcing ribs require a considerable depth, which places higher demands on the flowability of the molding material. During injection molding or die casting, the material is difficult to fill quickly and evenly to the root of the reinforcing rib, easily leading to material shortages. This results in insufficient structural strength of the end plate and may even affect the connection reliability of the battery module. Furthermore, after cooling and molding, uneven material shrinkage forms noticeable shrinkage marks on the reinforcing ribs, affecting not only the appearance quality of the end plate but also potentially causing stress concentration at the shrinkage marks, thereby reducing the fatigue resistance of the end plate. Therefore, this phenomenon has become a problem urgently needing to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this utility model is to provide an end plate with a double-sided reinforcing rib structure to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an end plate with a double-sided reinforcing rib structure, including an end plate body, the end plate body being divided into an inner side facing the battery and an outer side away from the battery. The end plate body is symmetrically arranged along its own axis. Several square grooves 1 and 2 are provided on the outer side, which are symmetrically arranged along the axis of the end plate body. The square grooves 1 and 2 form a reinforcing rib 1, which can enhance the structural rigidity and resist deformation. Several square grooves 3 and 4 are provided on the inner side, which correspond to the position and size of square grooves 1 and 2. The number of square grooves 3 and 4 is less than that of square grooves 1 and 2. The square grooves 3 and 4 form a reinforcing rib 2. The reinforcing ribs 1 and 2 work together to make the material fill the mold cavity more evenly, avoiding production defects such as material shortage and air bubbles, thereby reducing shrinkage marks.

[0006] This utility model further explains that two sets of mounting holes are provided at the intersection of the first reinforcing rib. The mounting holes are symmetrically arranged along the axis of the end plate body. The edges and corners inside the first and second reinforcing ribs are rounded. The lower first reinforcing rib is provided with a positioning surface. The first reinforcing rib is higher than the positioning surface to form a step, which facilitates positioning during subsequent installation.

[0007] This utility model further describes that a protrusion is provided on the upper part of the end plate body, and two sets of symmetrical U-shaped grooves are provided on the protrusion. A terminal is inserted into the U-shaped groove and the U-shaped groove penetrates the protrusion. A protrusion is provided on both sides inside the U-shaped groove. The protrusion is used to limit the terminal. The protrusion is trapezoidal and its long side contacts the two sides inside the U-shaped groove. A second protrusion is formed between the two sets of U-shaped grooves. A convex groove is provided on the second protrusion. The short side of the convex groove is located on the side away from the square groove. The convex groove penetrates the second protrusion. A positioning surface is provided on the top of the convex groove. The positioning surface is lower than the top surface of the second protrusion to form a step, which provides positioning for subsequent installation. A mounting hole is provided in the center of the top of the second protrusion, and the mounting hole communicates with the convex groove.

[0008] The present invention further describes that connecting posts are provided on both sides of the end plate body, and a through waist-shaped hole is provided at the center of the top of the connecting post. A rectangular groove is provided on the connecting post, and the rectangular groove is connected to the waist-shaped hole. Two sets of rectangular grooves are provided on both sides of the inner side, and the rectangular grooves are located on the upper and lower sides of the rectangular grooves and are connected to the waist-shaped hole.

[0009] This utility model further illustrates that a limiting block is fixed on the connecting column, and the limiting block is set on the upper and lower sides of the rectangular groove, which plays a limiting role during installation.

[0010] The present invention further explains that the bottom of the end plate body is provided with U-shaped groove 2 and U-shaped groove 3, which are symmetrically arranged along the end plate body. U-shaped groove 2 is connected to the waist-shaped hole, and U-shaped groove 3 is connected to the square groove 2.

[0011] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This utility model, by setting a structure with double-sided reinforcing ribs, can effectively improve the structural strength and stability, and can distribute the load more evenly than a single-sided structure. At the same time, the double-sided design allows the material to flow in both the upward and downward directions in the mold without changing the total depth of the reinforcing ribs. This can avoid problems such as material shortage and air bubbles at the root of traditional single-sided deep reinforcing ribs, and also avoids molding defects such as surface shrinkage marks and stress concentration from the root. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall front structure of this utility model; Figure 2 This is a schematic diagram of the overall rear structure of this utility model; Figure 3 This is a partial schematic diagram of the upper front part of this utility model; Figure 4 This is a partial schematic diagram of the front side of this utility model; Figure 5 This is a partial schematic diagram of the rear side of this utility model; In the diagram: 1. End plate body; 2. Inner side; 3. Outer side; 4. Square groove one; 5. Square groove two; 6. Reinforcing rib one; 7. Square groove three; 8. Square groove four; 9. Reinforcing rib two; 10. Mounting hole one; 11. Positioning surface one; 12. Protrusion; 13. U-shaped groove one; 14. Protrusion one; 15. Protrusion two; 16. Convex groove; 17. Positioning surface two; 18. Mounting hole two; 19. Connecting post; 20. Waist-shaped hole; 21. Rectangular groove one; 22. Rectangular groove two; 23. U-shaped groove two; 24. U-shaped groove three; 25. Limiting block. Detailed Implementation

[0013] The following detailed, non-limiting description of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0014] Please see Figure 1-5 This utility model provides a technical solution: an end plate with a double-sided reinforcing rib structure, including an end plate body 1. The end plate body 1 is divided into an inner side 2 facing the battery and an outer side 3 away from the battery. The end plate body 1 is symmetrically arranged along its own axis. Several square grooves 1 4 and 2 5 are provided on the outer side 3. The several square grooves 1 4 and 2 5 are symmetrically arranged along the axis of the end plate body 1. The several square grooves 1 4 and 2 5 form a reinforcing rib 1 6, which can enhance the structural rigidity and resist deformation. Several square grooves 3 7 and 4 8 are provided on the inner side 2. The several square grooves 3 7 and 4 8 correspond to the position and size of square grooves 1 4 and 2 5. The number of square grooves 3 7 and 4 8 is less than that of square grooves 1 4 and 2 5. The several square grooves 3 7 and 4 8 form a reinforcing rib 2 9. The reinforcing ribs 1 6 and 2 9 work together to make the material fill the mold cavity more evenly, avoid production defects such as material shortage and air bubbles, and thus reduce shrinkage marks. Two sets of mounting holes 10 are provided at the intersection of the reinforcing ribs 1 and 6. The mounting holes 10 are symmetrically arranged along the axis of the end plate body 1. The edges and corners inside the reinforcing ribs 1 and 2 are rounded. The lower reinforcing rib 16 is provided with a positioning surface 11. The reinforcing rib 16 is higher than the positioning surface 11 to form a step, which facilitates positioning during subsequent installation. A protrusion 12 is provided on the top of the end plate body 1. Two sets of symmetrical U-shaped grooves 13 are provided on the protrusion 12. A terminal (not shown in the figure) is inserted into the U-shaped groove 13. The U-shaped groove 13 passes through the protrusion 12. A protrusion 14 is provided on both sides inside the U-shaped groove 13. The protrusion 14 is used to limit the terminal. The protrusion 14 is trapezoidal and its long side contacts the two sides inside the U-shaped groove 13. A protrusion 2 15 is formed between the two sets of U-shaped grooves 13. A convex groove 16 is provided on the protrusion 2 15. The short side of the convex groove 16 is located on the side away from the square groove 2 5. The convex groove 16 passes through the protrusion 2 15. A positioning surface 2 17 is provided on the top of the convex groove 16. The positioning surface 2 17 is lower than the top surface of the protrusion 2 15 to form a step, which provides positioning for subsequent installation. A mounting hole 2 18 is provided in the center of the top of the protrusion 2 15. The mounting hole 2 18 communicates with the convex groove 16. The end plate body 1 is provided with connecting posts 19 on both sides. A through waist-shaped hole 20 is opened in the center of the top of the connecting post 19. A rectangular groove 21 is opened on the connecting post 19. The rectangular groove 21 communicates with the waist-shaped hole 20. Two sets of rectangular grooves 22 are opened on both sides of the inner side 2. The rectangular grooves 22 are located on the upper and lower sides of the rectangular groove 21. The rectangular grooves 22 communicate with the waist-shaped hole 20. Limiting blocks 25 are fixed on the connecting column 19. The limiting blocks 25 are set on the upper and lower sides of the rectangular groove 21 and play a limiting role during installation. The bottom of the end plate body 1 is provided with U-shaped groove 23 and U-shaped groove 34. U-shaped groove 23 and U-shaped groove 34 are symmetrically arranged along the end plate body 1. U-shaped groove 23 is connected to the waist-shaped hole 20, and U-shaped groove 34 is connected to the square groove 25.

[0015] Working principle: When preparing the end plate body 1, the mold cavity forms a flow channel corresponding to the reinforcing rib area on the upper and lower surfaces of the end plate body 1. After the molten material is injected into the mold, it does not need to be filled with a deep groove single-sided reinforcing rib in one direction. Instead, it flows synchronously in two directions along the upper and lower molds. The flow distance of the material is shortened by half, the flow resistance is significantly reduced, and it can quickly and evenly fill to the root of each reinforcing rib, avoiding material defects.

[0016] The double-sided reinforcing rib structure makes the material filling more even, effectively reduces the generation of shrinkage marks, and improves the load-bearing performance of the end plate body 1.

[0017] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0018] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An end plate with a double-sided reinforcing rib structure, comprising an end plate body (1), characterized in that: The end plate body (1) is divided into an inner side (2) facing the battery and an outer side (3) away from the battery. The end plate body (1) is symmetrically arranged along its own axis. Several square grooves 1 (4) and 2 (5) are provided on the outer side (3). Several square grooves 1 (4) and 2 (5) are symmetrically arranged along the axis of the end plate body (1). Several square grooves 1 (4) and 2 (5) form a reinforcing rib 1 (6). Several square grooves 3 (7) and 4 (8) are provided on the inner side (2). Several square grooves 3 (7) and 4 (8) correspond to the position and size of square grooves 1 (4) and 2 (5). The number of square grooves 3 (7) and 4 (8) is less than that of square grooves 1 (4) and 2 (5). Several square grooves 3 (7) and 4 (8) form a reinforcing rib 2 (9).

2. The end plate with a double-sided reinforcing rib structure according to claim 1, characterized in that: Two sets of mounting holes (10) are provided at the intersection of the first reinforcing rib (6). The mounting holes (10) are symmetrically arranged along the axis of the end plate body (1). The edges and corners inside the first reinforcing rib (6) and the second reinforcing rib (9) are rounded. The lower first reinforcing rib (6) is provided with a positioning surface (11). The first reinforcing rib (6) is higher than the positioning surface (11) to form a step.

3. An end plate with a double-sided reinforcing rib structure according to claim 2, characterized in that: A protrusion (12) is provided on the upper part of the end plate body (1). Two sets of symmetrical U-shaped grooves (13) are provided on the protrusion (12). A terminal is inserted into the U-shaped groove (13). The U-shaped groove (13) passes through the protrusion (12). A protrusion (14) is provided on both sides inside the U-shaped groove (13). The protrusion (14) is trapezoidal and its long side contacts the two sides inside the U-shaped groove (13). A protrusion (15) is formed between the two sets of U-shaped grooves (13). The second protrusion (15) has a convex groove (16) with the short side of the convex groove (16) located away from the square groove (5). The convex groove (16) penetrates the second protrusion (15). The top of the convex groove (16) has a positioning surface (17). The positioning surface (17) is lower than the top surface of the second protrusion (15) to form a step. The top center of the second protrusion (15) has a mounting hole (18) that communicates with the convex groove (16).

4. An end plate with a double-sided reinforcing rib structure according to claim 3, characterized in that: The end plate body (1) is provided with connecting posts (19) on both sides. A through waist-shaped hole (20) is opened in the center of the top of the connecting post (19). A rectangular groove (21) is opened on the connecting post (19). The rectangular groove (21) is connected to the waist-shaped hole (20). Two sets of rectangular grooves (22) are opened on both sides of the inner side (2). The rectangular grooves (22) are located on the upper and lower sides of the rectangular grooves (21). The rectangular grooves (22) are connected to the waist-shaped hole (20).

5. An end plate with a double-sided reinforcing rib structure according to claim 4, characterized in that: Limiting blocks (25) are fixed on the connecting column (19), and the limiting blocks (25) are set on the upper and lower sides of the rectangular groove (21).

6. An end plate with a double-sided reinforcing rib structure according to claim 5, characterized in that: The end plate body (1) has a U-shaped groove 2 (23) and a U-shaped groove 3 (24) at the bottom. The U-shaped groove 2 (23) and the U-shaped groove 3 (24) are symmetrically arranged along the end plate body (1). The U-shaped groove 2 (23) is connected to the waist-shaped hole (20), and the U-shaped groove 3 (24) is connected to the square groove 2 (5).

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