A plastic casing mold for a lithium battery module

Abstract

This utility model discloses a plastic casing mold for a lithium battery module, relating to the technical field of lithium battery plastic casings. The utility model includes a workbench and a mounting plate. A first opening groove is formed on the upper surface of the workbench. Connecting rods are welded to both sides of the lower surface of the workbench. The mounting plate is welded to the lower surface of the two connecting rods. Two first hydraulic rods are fixedly mounted on the upper surface of the mounting plate. Connecting plates are welded to the upper surfaces of the two first hydraulic rods. A lower mold is installed between the two connecting plates. Two demolding holes are formed on the bottom surface of the lower mold. Demolding rods are slidably installed inside the two demolding holes. The lower surfaces of the two demolding rods are fixedly connected to the upper surface of the mounting plate. This utility model, through the structure of the first hydraulic rods, demolding rods, and a return spring, facilitates the ejection of the plastic casing from the bottom of the lower mold after it has cooled and solidified inside the mold, ensuring the integrity of the device during demolding and improving the demolding efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of lithium battery plastic shell technology, and in particular relates to a mold for a lithium battery module plastic shell. Background Technology

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as the negative electrode material and a non-aqueous electrolyte solution. Due to the highly reactive chemical properties of lithium metal, the processing, storage, and use of lithium metal require very high environmental standards. With the development of science and technology, lithium batteries have now become the mainstream. In lithium battery modules, the outer wall is usually wrapped with a plastic shell, and molds are required when producing the plastic shell.

[0003] In the existing technology, removing the molded plastic shell from the mold of the lithium battery module plastic shell is very troublesome and inconvenient. It is not convenient to take the molded shell from above. At the same time, the existing mold has a slow cooling efficiency, which affects the demolding efficiency in the later stage. Therefore, a new lithium battery module plastic shell mold is proposed to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a plastic shell mold for lithium battery modules to solve existing problems.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a plastic shell mold for a lithium battery module, comprising a workbench and a mounting plate. A first opening groove is formed on the upper surface of the workbench. Connecting rods are welded to both sides of the lower surface of the workbench. The mounting plate is welded to the lower surfaces of the two connecting rods. Two first hydraulic rods are fixedly mounted on the upper surface of the mounting plate. Connecting plates are welded to the upper surfaces of the two first hydraulic rods. A lower mold is installed between the two connecting plates. Two demolding holes are formed on the bottom surface of the lower mold. Demolding rods are slidably installed inside the two demolding holes. The lower surfaces of the two demolding rods are fixedly connected to the upper surface of the mounting plate, facilitating the ejection of the plastic shell from the bottom of the lower mold after it has cooled and solidified inside, ensuring the integrity of the device during demolding and improving the demolding efficiency. Two through slots are formed on the lower surface of the lower mold. A cooling box is installed inside the bottom surface of the lower mold, and the through slots are connected to the interior of the cooling box. Two cooling fans are installed on the inner wall of the cooling box, with their positions corresponding to the positions of the two through slots, accelerating the cooling speed of the mold.

[0007] Furthermore, the upper ends of the two first hydraulic rods extend to the top of the worktable through the first opening slot, and a sliding plate is slidably installed on the periphery of the two demolding rods, with a limit post installed on the upper surface of the sliding plate.

[0008] Furthermore, sliding sleeves are slidably installed on the peripheral sides of the two demolding rods, and the two sliding sleeves are located below the sliding plate. The upper surfaces of the two sliding sleeves are in contact with the lower surface of the sliding plate, which facilitates the uniform descent of the lower mold driven by the first hydraulic rod. This makes it easier to cooperate with the demolding rods for demolding operations in the later stage, improves the automation level of the device, and reduces the workload of the operators.

[0009] Furthermore, a return spring is installed between the lower surface of the two sliding sleeves and the upper surface of the mounting plate, and the two return springs are respectively wrapped around the periphery of the two demolding rods.

[0010] Furthermore, support columns are welded to the periphery of the lower surface of the workbench, and second hydraulic rods are installed on the periphery of the upper surface of the workbench. A top plate is welded to the upper surface of the four second hydraulic rods.

[0011] Furthermore, an upper mold is installed on the lower surface of the top plate, the position of the upper mold corresponds to the position of the lower mold, and a second opening groove is provided on the upper surface of the top plate.

[0012] Furthermore, the top surface of the upper mold is provided with injection holes, and both the upper mold and the lower mold are provided with cooling channels.

[0013] Furthermore, both the upper and lower molds are equipped with coolant inlets on their front surfaces, and the coolant inlets are connected to the cooling channels.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model, through the structure of the first hydraulic rod, the demolding rod and the return spring, facilitates the ejection of the plastic shell from the bottom of the lower mold after the plastic shell inside the lower mold has cooled and formed, ensuring the integrity of the device during demolding and improving the demolding efficiency of the device. Through the structure of the cooling box and the cooling fan, the cooling efficiency of the mold injection is improved, thereby improving the working efficiency of the device.

[0016] 2. This utility model, through the structure of limiting posts and sliding plates, facilitates the uniform descent of the lower mold driven by the first hydraulic rod, which is convenient for subsequent demolding operations with the demolding rod, improves the automation level of the device, and reduces the workload of operators.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of a plastic shell mold for a lithium battery module according to the present invention;

[0020] Figure 2 This is a front view structural diagram of a plastic shell mold for a lithium battery module according to the present invention;

[0021] Figure 3 This is a schematic diagram of the top surface structure of a plastic shell mold for a lithium battery module according to this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the lower mold in this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Workbench; 2. First opening slot; 3. Connecting rod; 4. Mounting plate; 5. First hydraulic rod; 6. Connecting plate; 7. Lower mold; 8. Demolding rod; 9. Sliding plate; 10. Limiting post; 11. Sliding sleeve; 12. Return spring; 13. Second hydraulic rod; 14. Top plate; 15. Second opening slot; 16. Injection hole; 17. Upper mold; 18. Coolant inlet; 19. Support column; 20. Through slot; 21. Cooling box; 22. Cooling fan. Detailed Implementation

[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements 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.

[0027] Please see Figures 1-4As shown, this utility model is a plastic shell mold for a lithium battery module, including a workbench 1 and a mounting plate 4. The upper surface of the workbench 1 has a first opening groove 2. Connecting rods 3 are welded to both sides of the lower surface of the workbench 1. The mounting plate 4 is welded to the lower surface of the two connecting rods 3. Two first hydraulic rods 5 are fixedly installed on the upper surface of the mounting plate 4. Connecting plates 6 are welded to the upper surface of the two first hydraulic rods 5. A lower mold 7 is installed between the two connecting plates 6. Two demolding holes are opened on the bottom surface of the lower mold 7. Demolding rods 8 are slidably installed inside the two demolding holes. The lower surfaces of the two demolding rods 8 are fixedly connected to the upper surface of the mounting plate 4, so that after the plastic shell inside the lower mold 7 cools and forms, the plastic shell can be pushed out from the bottom of the lower mold 7, ensuring the integrity of the device during demolding and improving the demolding efficiency of the device. Two through grooves 20 are opened on the lower surface of the lower mold 7. A cooling box 21 is installed on the bottom surface inside the lower mold 7. The inside of the through grooves 20 is connected to the inside of the cooling box 21. Two cooling fans 22 are installed on the inner wall of the cooling box 21. The positions of the two cooling fans 22 correspond to the positions of the two through grooves 20.

[0028] The upper ends of the two first hydraulic rods 5 extend to the top of the worktable 1 through the first opening slot 2. The two demolding rods 8 are slidably mounted on the sides of the sliding plate 9, and the upper surface of the sliding plate 9 is equipped with limit posts 10.

[0029] Sliding sleeves 11 are slidably installed on the sides of the two demolding rods 8. The two sliding sleeves 11 are located below the sliding plate 9, and the upper surface of the two sliding sleeves 11 contacts the lower surface of the sliding plate 9. This facilitates the first hydraulic rod 5 to drive the lower mold 7 to descend at a uniform speed, which is convenient for subsequent demolding operations in conjunction with the demolding rods 8. This improves the automation level of the device and reduces the workload of the operators.

[0030] A return spring 12 is installed between the lower surface of the two sliding sleeves 11 and the upper surface of the mounting plate 4. The two return springs 12 are respectively wrapped around the two demolding rods 8.

[0031] Support columns 19 are welded to the lower surface of the workbench 1, and second hydraulic rods 13 are installed on the upper surface of the workbench 1. A top plate 14 is welded to the upper surface of the four second hydraulic rods 13.

[0032] An upper mold 17 is installed on the lower surface of the top plate 14. The position of the upper mold 17 corresponds to the position of the lower mold 7. A second opening groove 15 is provided on the upper surface of the top plate 14.

[0033] The upper mold 17 has injection holes 16 on its top surface, and both the upper mold 17 and the lower mold 7 have cooling channels inside.

[0034] Both the upper mold 17 and the lower mold 7 have coolant inlets 18 installed on their front surfaces, and the coolant inlets 18 are connected to the cooling channels.

[0035] Please see Figures 1-4 As shown, this utility model is a plastic shell mold for a lithium battery module. Its usage method is as follows: First, the second hydraulic rod 13 is activated, lowering the top plate 14 so that the upper mold 17 and the lower mold 7 are aligned. After alignment, injection molding is performed into the mold through the injection hole 16. After injection molding, coolant is supplied to both the lower mold 7 and the upper mold 17 through the coolant inlet 18. Simultaneously, the cooling fan 22 starts working, supplying cooling air into the cooling box 21, thereby lowering the temperature of the cooling box 21 and accelerating the cooling of the plastic shell. After the plastic shell inside the lower mold 7 has cooled and solidified, the second hydraulic rod 13 is activated. Hydraulic rod 13 drives the upper mold 17 to rise, and at the same time, the first hydraulic rod 5 is activated to drive the lower mold 7 to fall. When the lower mold 7 falls to a certain extent, it contacts the limiting post 10. The lower mold 7 continues to fall, driving the limiting post 10 and the sliding plate 9 to fall. The sliding plate 9 and the sliding sleeve 11 slide down along the demolding rod 8. The demolding rod 8 pushes out from the demolding hole provided on the bottom surface of the lower mold 7 to demold the plastic shell. After demolding, the plastic shell is removed. At this time, the first hydraulic rod 5 rises to drive the lower mold 7 to reset. At this time, the sliding plate 9 and the sliding sleeve 11 are reset by the reset spring 12.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A mould for plastic housing of lithium battery module, comprising a worktable (1) and a mounting plate (4), characterized in that: The upper surface of the workbench (1) is provided with a first opening groove (2). Connecting rods (3) are welded to both sides of the lower surface of the workbench (1). The mounting plate (4) is welded to the lower surface of the two connecting rods (3). Two first hydraulic rods (5) are fixedly installed on the upper surface of the mounting plate (4). Connecting plates (6) are welded to the upper surfaces of the two first hydraulic rods (5). A lower mold (7) is installed between the two connecting plates (6). The bottom surface of the lower mold (7) has two demolding holes. A demolding rod (8) is slidably installed inside the mold hole. The lower surfaces of the two demolding rods (8) are fixedly connected to the upper surface of the mounting plate (4). Two through slots (20) are opened on the lower surface of the lower mold (7). A cooling box (21) is installed on the bottom surface inside the lower mold (7). The inside of the through slots (20) is connected to the inside of the cooling box (21). Two cooling fans (22) are installed on the inner wall of the cooling box (21). The positions of the two cooling fans (22) correspond to the positions of the two through slots (20).

2. The plastic case mold for a lithium battery module according to claim 1, wherein The upper ends of the two first hydraulic rods (5) extend to the top of the worktable (1) through the first opening slot (2). The two demolding rods (8) are slidably mounted on the periphery of a sliding plate (9). A limit post (10) is installed on the upper surface of the sliding plate (9).

3. The plastic case mold for a lithium battery module according to claim 2, wherein Sliding sleeves (11) are slidably installed on the periphery of the two demolding rods (8), and the two sliding sleeves (11) are located below the sliding plate (9). The upper surface of the two sliding sleeves (11) is in contact with the lower surface of the sliding plate (9).

4. The plastic case mold for a lithium battery module according to claim 3, wherein A reset spring (12) is installed between the lower surface of the two sliding sleeves (11) and the upper surface of the mounting plate (4), and the two reset springs (12) are respectively wrapped around the two demolding rods (8).

5. The plastic case mold for a lithium battery module according to claim 1, wherein Support columns (19) are welded to the lower surface of the workbench (1), and second hydraulic rods (13) are installed on the upper surface of the workbench (1). A top plate (14) is welded to the upper surface of the four second hydraulic rods (13).

6. The plastic case mold for a lithium battery module according to claim 5, wherein The upper mold (17) is installed on the lower surface of the top plate (14), and the position of the upper mold (17) corresponds to the position of the lower mold (7). A second opening groove (15) is opened on the upper surface of the top plate (14).

7. The plastic case mold for a lithium battery module according to claim 6, wherein The upper mold (17) has an injection hole (16) on its top surface, and both the upper mold (17) and the lower mold (7) have cooling channels inside.

8. The plastic case mold for a lithium battery module according to claim 7, wherein The front surfaces of both the upper mold (17) and the lower mold (7) are equipped with coolant inlets (18), which are connected to the cooling channels.

Images