Aluminum profile hot extrusion die for automobile blade battery case

Abstract

The utility model discloses an aluminum profile hot extrusion die for an automobile blade battery case. The aluminum profile hot extrusion die comprises an upper die and a lower die which are arranged along the same central axis, four shunting holes are uniformly formed in the upper mold around the central axis, and mold cores are distributed in the middles of the four shunting holes; a welding chamber, a cavity and a discharge hole are sequentially formed in the lower mold from one end close to the upper mold; the mold core extends into the cavity of the lower mold from the upper mold, and when aluminum flow passes through the cavity, the blade battery shell aluminum profile is formed under the action of the mold core. The hot extrusion die can meet batch hot extrusion forming of automobile blade battery case thin-wall parts.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum profile hot extrusion dies, in particular to an aluminum profile hot extrusion die for an automobile blade battery shell. Background Art

[0002] As an alternative to traditional fuel vehicles, new energy vehicles are experiencing explosive growth, and battery technology is a key component of their development.

[0003] Blade batteries are a representative example of cutting-edge new technologies. The blade battery housing is made of 3003 aluminum alloy, with a shell width of 120mm and a wall thickness of less than 0.3mm. The base material for hot extrusion is only 0.4 to 0.5mm, which is very difficult for hot extrusion dies. The main difficulty lies in the high viscosity of 3003 aluminum and the thin wall thickness. This makes it difficult to meet product molding and wall thickness requirements, and the lifespan is also difficult to achieve. Utility Model Content

[0004] The purpose of the utility model is to provide an aluminum profile hot extrusion die for an automobile blade battery shell, so as to solve the problem that the existing hot extrusion die is difficult to mass-produce thin-walled aluminum profile parts.

[0005] In order to solve the above technical problems, the utility model provides a hot extrusion die for an aluminum profile of an automobile blade battery shell, comprising an upper die and a lower die arranged along the same central axis;

[0006] The upper mold is provided with four diversion holes evenly arranged around the central axis, and a mold core is arranged in the middle of the four diversion holes;

[0007] The lower mold is provided with a welding chamber, a cavity and a discharge port in sequence starting from one end close to the upper mold;

[0008] The mold core extends from the upper mold to the mold cavity of the lower mold. When the aluminum flow passes through the mold cavity, the blade battery shell aluminum profile is formed under the action of the mold core.

[0009] Preferably, the four diversion holes adopt a butterfly bridge layout, and the aluminum flow is fed in a butterfly shape along the four diversion holes.

[0010] Preferably, the four diversion holes are all connected to the welding chamber, and the aluminum flows through the four diversion holes into the welding chamber.

[0011] Preferably, the welding chamber is provided with a plurality of water blocking platforms away from the central portion.

[0012] Preferably, the aluminum flow channels formed by the diversion holes, mold cores, welding chambers, and cavities in the upper mold and the lower mold are all connected smoothly.

[0013] Preferably, a countersunk hole is provided at the entrance of the upper mold.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The hot extrusion die for the aluminum profile of the automotive blade battery shell has four diversion holes and a countersunk hole at the entrance to minimize die pressure;

[0016] 2. The aluminum flow channels in the hot extrusion die of the automotive blade battery shell aluminum profile are all connected smoothly without any obstruction, ensuring that the material passes through the die quickly and smoothly;

[0017] 3. The hot extrusion die of the aluminum profile of the automotive blade battery shell is equipped with multiple water blocking platforms to limit the aluminum flow on both sides from directly rushing into the cavity and avoid excessive tailing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view of a hot extrusion die for an aluminum profile of an automobile blade battery shell provided by the utility model;

[0019] Figure 2 yes Figure 1 Cross-sectional view at AA in the middle;

[0020] Figure 3 This is a cross-sectional view of the lower mold provided by the utility model;

[0021] Figure 4 It is a cross-sectional view of the upper mold provided by the utility model.

[0022] In the figure: 1. Upper mold; 2. Lower mold; 3. Diverter hole; 4. Mold core; 5. Welding chamber; 6. Cavity; 7. Discharge port; 8. Water blocking platform; 9. Countersunk hole. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the present invention in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are greatly simplified and not to exact scale, and are intended solely to facilitate and clearly illustrate the embodiments of the present invention.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship 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.

[0025] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances. Example

[0026] The utility model provides a hot extrusion die for aluminum profiles of automobile blade battery shells. Figure 1 and Figure 2 , including an upper mold 1 and a lower mold 2 arranged along the same central axis; four diversion holes 3 are evenly opened on the upper mold 1 around the central axis, and a mold core 4 is arranged in the middle of the four diversion holes 3; the lower mold 2 is sequentially opened with a welding chamber 5, a cavity 6 and a discharge port 7 starting from one end close to the upper mold 1; the mold core 4 extends from the upper mold 1 to the cavity 6 of the lower mold 2. When the aluminum flow passes through the cavity 6, the blade battery shell aluminum profile is formed under the action of the mold core 4.

[0027] For details, please refer to Figure 1-4 The four diversion holes 3 adopt a butterfly bridge layout, and the aluminum flow is butterfly-shaped along the four diversion holes 3, which reduces the pressure generated during the extrusion process, reduces the surface welding line, and makes the surface smoother; at the same time, it can indirectly improve the life of the hot extrusion die.

[0028] Furthermore, the four diversion holes 3 are all connected to the welding chamber 5 , and the aluminum flows through the four diversion holes 3 into the welding chamber 5 .

[0029] In one embodiment, the welding chamber 5 is provided with a plurality of water blocking platforms 8 away from the central portion to limit the aluminum flows on both sides from directly rushing into the cavity 6 and avoid excessively fast tailing.

[0030] Specifically, the aluminum flow channels formed by the diversion holes 3, the mold core 4, the welding chamber 5, and the mold cavity 6 in the upper mold 1 and the lower mold 2 are all connected smoothly without any obstruction, ensuring that the material passes through the mold quickly and smoothly.

[0031] In addition, a countersink 9 is provided at the entrance of the upper mold 1 to reduce the mold pressure to the greatest extent.

[0032] The above description is only a description of the preferred embodiment of the present invention and does not limit the scope of the present invention. Any changes and modifications made by ordinary technicians in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A hot extrusion die for aluminum profiles of automobile blade battery shells, characterized in that: It comprises an upper mold (1) and a lower mold (2) arranged along the same central axis; Four diversion holes (3) are evenly arranged on the upper mold (1) around the central axis, and a mold core (4) is arranged in the middle of the four diversion holes (3); The lower mold (2) is provided with a welding chamber (5), a mold cavity (6) and a discharge port (7) in sequence starting from an end close to the upper mold (1); The mold core (4) extends from the upper mold (1) to the mold cavity (6) of the lower mold (2). When the aluminum flow passes through the mold cavity (6), the blade battery shell aluminum profile is formed under the action of the mold core (4).

2. The hot extrusion die for aluminum profiles of automotive blade battery shells according to claim 1, characterized in that: The four diversion holes (3) adopt a butterfly bridge layout, and the aluminum flow is fed in a butterfly shape along the four diversion holes (3).

3. The hot extrusion die for aluminum profiles of automotive blade battery shells according to claim 2, characterized in that: The four diversion holes (3) are all connected to the welding chamber (5), and the aluminum flows through the four diversion holes (3) into the welding chamber (5).

4. The hot extrusion die for an aluminum profile for a car blade battery shell as claimed in claim 3, characterized in that: The welding chamber (5) is provided with a plurality of water blocking platforms (8) away from the central portion.

5. The hot extrusion die for aluminum profiles of automotive blade battery shells according to claim 1, characterized in that: The aluminum flow channels formed by the diversion holes (3), the mold core (4), the welding chamber (5), and the mold cavity (6) in the upper mold (1) and the lower mold (2) are all connected smoothly.

6. The hot extrusion die for aluminum profiles of automotive blade battery shells according to claim 1, characterized in that: A countersunk hole (9) is provided at the entrance of the upper mold (1).

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