Stamping and stretching shell for installing lithium battery

Abstract

The utility model discloses a stamping and stretching shell for installing a lithium battery, which comprises a shell, the shell is rectangular and hollow, the top of the shell is sequentially provided with a top cover and an outer shell, and the top cover is arranged between the shell and the outer shell. The beneficial effects of the utility model are that compared with the existing plastic housing scheme, the heat dissipation performance and the temperature uniformity are better; compared with the existing plastic shell scheme, the use of plastic parts is greatly reduced; the assembly process is simple, production links and operation steps are reduced, the production process is smoother, and therefore the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery installation and technical field, specifically is a kind of installation lithium battery's stamping stretch shell. BACKGROUND

[0002] With the market demand share of new energy industry power battery is higher and higher, the safety performance of new energy power battery is more and more concerned. The shell of the existing power battery, the main body is made of PC / PBT granules injection molding, is widely applied with the characteristics such as easy processing, low cost, renewable recycling, but the battery module temperature control performance is poor, battery module heat quantity is large and cannot be effectively heat exchanged;

[0003] Affected by the whole vehicle plastic limit order, the total mass of the component using plastic material should not exceed 5.5% of the mass of the whole vehicle, and the plastic material is generally used in the shell of the new energy power battery at present, but due to the flammability of plastic, these materials will accelerate the spread of fire and release a large amount of toxic gas when fire occurs, which is easy to cause a vicious fire accident of mass death and injury. SUMMARY

[0004] The utility model aims at providing a kind of installation lithium battery's stamping stretch shell to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of installation lithium battery's stamping stretch shell, characterized by: including shell, the shell is hollow rectangular, the top of the shell is equipped with top cover and shell in sequence, the top cover is set between the shell and the shell.

[0006] Further optimization, the top cover and shell end face are all provided with screw hole for locking.

[0007] Further optimization, locking screw is placed in the screw hole.

[0008] Further optimization, the top cover is metal material, and the top cover is formed by metallurgical powder stamping.

[0009] Further optimization, the shell is formed by cold-rolled steel stamping.

[0010] Further optimization, the shell and the top cover are connected by laser welding.

[0011] Further optimization, the shell is plastic material.

[0012] Beneficial effects

[0013] The stamped and stretched housing for installing lithium batteries provided by this utility model consists of a plastic outer shell made of injection molding, primarily composed of PC / PBT material. Compared to the conductivity of metal, the PC / PBT material significantly improves product safety and reduces the risk of leakage. The plastic outer shell is simple to mold, typically requiring only one injection molding process without secondary processing, thus reducing processing costs and complexity. The metal top cover is made using powder metallurgy, primarily using metal powder as raw material. Through forming and sintering processes, metal-type products are manufactured without the need for melting, maximizing the use of raw materials, reducing waste, and benefiting environmental protection. By fully utilizing raw materials, energy and production costs are saved, resulting in lower product prices. When producing a large quantity of products with uniform shapes, production costs can be significantly reduced, and production efficiency improved. The stretching and stamping process, using primarily carbon steel and stainless steel as raw materials, produces products with high tensile strength and tensile properties, capable of withstanding significant mechanical loads. It also exhibits good elongation and impact toughness, making it less prone to breakage and shattering. Stretched products can be used at higher temperatures and possess excellent thermal stability, exhibiting superior temperature control compared to products made from PC / PTC materials (see attached "Battery Heat Dissipation Simulation Analysis Report - Transient Simulation" for details). Deep-drawn parts boast high product quality, precise shape and size, and long service life. Furthermore, precise control of multiple processes enhances product accuracy and quality. Attached Figure Description

[0014] Fig. 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Fig. 2 This is an exploded view of the overall structure of this utility model. Detailed Implementation

[0016] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0017] Example

[0018] like Figs. 1-2 As shown, a stamped and stretched housing for mounting a lithium battery includes a housing 1, which is rectangular and hollow. A top cover 2 and an outer shell 3 are sequentially provided on the top of the housing 1, with the top cover 2 disposed between the housing 1 and the outer shell 3.

[0019] In this embodiment, screw holes 4 for locking are provided around the end faces of the top cover 2 and the outer shell 3.

[0020] Each of the four screw holes contains a locking screw.

[0021] The top cover 2 is made of metal and is formed by metallurgical powder stamping using powder metallurgy technology. Its material is mainly metal powder, which is used to manufacture metal products through forming and sintering processes. No melting is required during this process, maximizing the use of raw materials, reducing waste, and benefiting the environment. Full utilization of raw materials saves energy and production costs, reducing product prices. When producing a large quantity of products with uniform shapes, it can significantly reduce production costs and improve production efficiency.

[0022] Shell 1 is formed by cold-rolled steel stamping using a stretching stamping process. Its material is mainly carbon steel and stainless steel. Stretched products have high tensile strength and tensile properties, can withstand large mechanical loads, and also have good elongation and impact toughness, making them less prone to breakage and shattering. Stretched products can be used at higher temperatures and have good thermal stability, exhibiting better temperature control performance compared to products made of PC / PTC material (see the attached "Battery Heat Dissipation Simulation Analysis Report - Transient Simulation" for details). Deep-drawn parts have high product quality, precise shape and size, long service life, and the precise control of multiple processes improves the product's accuracy and quality.

[0023] The housing 1 and the top cover 2 are connected by laser welding.

[0024] The outer shell 3 is made of plastic and is produced by injection molding. Its material is mainly composed of PC / PBT material. Compared with the conductivity of metal, the outer shell made of PC / PBT material greatly improves the safety of the product and reduces the risk of leakage. The plastic outer shell is simple to mold and usually only requires one injection molding without secondary processing, which reduces processing costs and complexity.

[0025] Compared to existing plastic shell solutions, it offers superior heat dissipation and temperature uniformity.

[0026] Compared to existing plastic casing solutions, this significantly reduces the use of plastic components;

[0027] The assembly process is simple, reducing production steps and operations, making the production process smoother and thus improving production efficiency.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the scope of protection of this utility model.

Claims

1. A stamped and stretched housing for mounting a lithium battery, characterized in that: The device includes a housing (1), which is rectangular and hollow. A top cover (2) and an outer shell (3) are sequentially provided on the top of the housing (1). The top cover (2) is located between the housing (1) and the outer shell (3). Screw holes (4) for locking are provided around the end faces of the top cover (2) and the outer shell (3). Locking screws are placed in the screw holes (4). The top cover (2) is made of metal and is formed by metallurgical powder stamping. The housing (1) is formed by cold-rolled steel stamping. The housing (1) and the top cover (2) are connected by laser welding. The outer shell (3) is made of plastic.

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