Aluminum shell for enhancing structural strength of blade battery
By installing reinforcing ribs on the aluminum shell, especially with the concave part designed as an arc and the fixing plate as a sloping structure, the problem of easy deformation of the aluminum shell is solved, the stability and safety of the battery are improved, and the battery production efficiency and imaging effect are enhanced.
Patent Information
- Application Number
- CN202422198640.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-09-09
AI Technical Summary
Aluminum casings have low strength and are prone to deformation, which affects the flatness of the battery and the stability of the cells, leading to reduced battery production efficiency.
A reinforcing rib assembly is installed on the aluminum shell, including a fixing plate and a recess. The recess is designed in an arc shape to distribute stress evenly. The fixing plate has a sloping structure on both sides to fix the battery cell. A gap is left between the inner wall of the aluminum shell and the battery cell to facilitate venting.
The increased structural strength of the aluminum casing prevents deformation, improves battery stability and safety, reduces cell movement within the casing, and enhances X-ray imaging stability and battery safety.
Smart Images
Figure CN223612549U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to battery aluminum shell technical field especially relates to a kind of aluminum shell of reinforcing blade battery structural strength. BACKGROUND
[0002] With the rapid development of lithium-ion battery technology, blade battery as the main power source of electric vehicles has been widely used. The performance and safety requirements of blade battery are continuously improved. Aluminum shell is an important part of blade battery, which prevents the erosion of the external environment to the internal structure of the battery by welding with the positive and negative cover plates. In order to achieve lightweight design, aluminum is usually selected as the material of the battery shell. The aluminum battery shell is relatively light, has good processing performance, corrosion resistance and strength advantage.
[0003] However, in order to meet the maximum demand for battery capacity, the wall thickness of the aluminum shell is continuously thinned, which results in low overall strength of the aluminum shell and difficulty in maintaining flatness. Due to the reduction of shell strength, the aluminum shell is prone to deformation, especially after peripheral welding, due to heat effect, the aluminum shell surface may appear uneven, affecting the X-ray imaging effect, at the same time, it will also cause the inconsistent shape of the battery cell in the production process, affecting the subsequent blue film coating process production, reducing the work efficiency. SUMMARY
[0004] To solve the technical problems existing in the background art, the utility model provides an aluminum shell for enhancing the structural strength of blade battery, to solve the technical problems of low strength and easy deformation of aluminum shell.
[0005] The utility model provides an aluminum shell for enhancing the structural strength of blade battery, comprising an aluminum shell, a plurality of reinforcing rib assemblies are installed on the aluminum shell, and the reinforcing rib assemblies are used to reinforce the structural strength of the aluminum shell.
[0006] The reinforcing rib assembly is used to reinforce the structural strength of the aluminum shell, prevent the aluminum shell mouth from deforming due to heat effect, and limit the battery cell inside the aluminum shell.
[0007] Preferably, the reinforcing rib assembly comprises a fixed plate, a plurality of inner recesses are formed on the side of the fixed plate away from the aluminum shell, and the inner recesses protrude from the fixed plate on the side close to the aluminum shell.
[0008] The setting of the inner recess makes the aluminum shell protrude and cover the inner recess on the fixed plate, the aluminum shell and the inner recess match and deform in an inner convex manner, which fixes and limits the battery cell of the aluminum shell.
[0009] Preferably, the two sides of the inner recess are circularly arranged.
[0010] If the two sides of the inner recess are sharp right angles, the aluminum shell is easy to scratch the battery when contacted, and when the two sides of the inner recess are right angles, local stress concentration is easy to occur at the right angle under the stress condition, which may cause damage of the reinforcing rib assembly or the battery at the position.
[0011] Preferably, the shape of the aluminum shell is set as a rectangular structure.
[0012] The aluminum shell is provided with the battery, and there is a gap between the inner wall of the aluminum shell and the battery. The aluminum shell is provided with the battery, and there is a gap between the inner wall of the aluminum shell and the battery.
[0013] Preferably, the two sides of the fixed plate are in a slope structure, and the two sides of the fixed plate extend into the aluminum shell and are installed on the aluminum shell.
[0014] Specifically, the slope structure of the two sides of the fixed plate extends into the aluminum shell and is fixedly connected with the inner wall of the aluminum shell at the bottom end of the slope structure, and the fixed connection is formed at the through part of the slope structure and the aluminum shell.
[0015] Preferably, the two sides of the fixed plate are chamfered.
[0016] This design, the fixed plate is designed as a chamfered inclined surface structure at the end, which is helpful for the assembly of the battery pole group, reduces the collision, and improves the assembly efficiency.
[0017] In the utility model, the aluminum shell body for enhancing the structural strength of the blade battery has the following beneficial technical effects:
[0018] By setting the reinforcing rib assembly, the overall structural strength of the aluminum shell can be effectively enhanced, and the appearance flatness problem caused by heat influence after peripheral welding of the aluminum shell can be improved. In addition, the reinforcing rib assembly can also reduce the thickness exceeding of the battery in the module segment caused by the expansion of the aluminum shell, and through the design of the inner recess, the limiting effect on the battery is reduced, and the shaking amplitude of the battery in the aluminum shell is reduced, so that the picture taking and edge grabbing stability in the X-ray imaging process are improved.
[0019] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is the front view of the structure of the utility model.
[0021] In the figure, 1, aluminum shell; 2, reinforcing rib assembly; 21, fixed plate; 22, inner recess; DETAILED DESCRIPTION
[0022] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar symbols represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are only used to explain the present application and cannot be understood as a limitation of the present application.
[0023] As Figure 1 shown in the figure, an aluminum shell for enhancing the structural strength of a blade battery, comprising an aluminum shell 1, a plurality of reinforcing rib assemblies 2 are installed on the aluminum shell 1, and the reinforcing rib assemblies 2 are used to enhance the structural strength of the aluminum shell 1.
[0024] The reinforcing rib assemblies 2 are used to enhance the structural strength of the aluminum shell 1, prevent the mouth of the aluminum shell 1 from being deformed due to heat, and limit the electric core inside the aluminum shell 1.
[0025] Further improvement of the technical scheme is that the reinforcing rib assembly 2 comprises a fixed plate 21, a plurality of inner recesses 22 are formed on the side of the fixed plate 21 away from the aluminum shell 1, and the side of the inner recess 22 close to the aluminum shell 1 protrudes from the fixed plate 21.
[0026] The inner recess 22 is provided, so that the aluminum shell 1 is pressed and covered by the inner recess 22 on the fixed plate 21, the aluminum shell 1 and the inner recess 22 are matched to be deformed in an inner convex manner, and the electric core of the aluminum shell 1 is fixed and limited.
[0027] Further improvement of the technical scheme is that the two sides of the inner recess 22 are arc-shaped.
[0028] If the two sides of the inner recess 22 are sharp right angles, the aluminum shell 1 is easy to scratch the electric core when contacting, and when the two sides of the inner recess 22 are right angles, local stress concentration is easy to occur at the right angle under stress, which may cause damage of the reinforcing rib assembly 2 or the electric core at the part. The arc-shaped design can make the stress more evenly distributed, reduce the local stress concentration phenomenon, thereby improving the stability and reliability of the entire battery structure.
[0029] Further improvement of the technical scheme is that the shape of the aluminum shell 1 is set as a rectangular structure.
[0030] The aluminum shell 1 is provided with an electric core, and there is a gap between the inner wall of the aluminum shell 1 and the electric core. The gap between the electric core and the aluminum shell 1 leaves a gap, which helps to exhaust more smoothly and further improves the safety of the battery.
[0031] Further improvement of the technical scheme is that the two sides of the fixed plate 21 are in a slope structure, and the two sides of the fixed plate 21 extend into the aluminum shell 1 and are installed on the aluminum shell 1.
[0032] Specifically, the slope structure of the two sides of the fixed plate 21 extends into the aluminum shell 1 and is fixedly connected with the inner wall of the aluminum shell 1 at the bottom end of the slope structure, and the slope structure is fixedly connected with the aluminum shell 1 at the through part.
[0033] Further improvement of the technical scheme is that the two sides of the fixed plate 21 are chamfered.
[0034] This design, in which the end of the fixed plate 21 is designed as a chamfered inclined surface structure, helps the assembly of the battery cell pole group, reduces collision, and improves assembly efficiency.
[0035] Through the above technical scheme, the technical effects that can be achieved by the present application mainly reflect in the following aspects:
[0036] The position of the reinforcing rib assembly 2 can reduce the influence of the deformation of the aluminum shell 1 on the battery cell, and the circular arc edge design of the inner recess 22 can effectively reduce the scratching between the battery cell and the aluminum shell 1. In addition, through the abutment and limiting fixation of the battery cell, the shaking amplitude of the battery cell in the main shell can be reduced, thereby improving the safety of the battery.
[0037] X-ray imaging is the prior art, that is, X-ray imaging. X-ray is a kind of electromagnetic wave with short wavelength and high energy. The principle of X-ray imaging is that when X-ray penetrates through human body and other objects, different tissues have different absorption degrees of X-ray, thereby forming different gray scale images on the detector.
[0038] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by those skilled in the art.
[0039] It should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0040] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined as "first", "second", etc. can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.
[0041] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0042] In the present application, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.
[0043] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.
Claims
1. An aluminum housing for reinforcing the structural strength of a blade cell, comprising an aluminum housing (1), characterized in that, The aluminum shell (1) is provided with a plurality of reinforcing rib assemblies (2) for reinforcing the structural strength of the aluminum shell (1); The reinforcing rib assembly (2) comprises a fixing plate (21), a plurality of inner recesses (22) are formed on the side of the fixing plate (21) away from the aluminum shell (1), and the inner recesses (22) protrude from the fixing plate (21) on the side close to the aluminum shell (1); The two sides of the fixing plate (21) are in a slope structure, and the two sides of the fixing plate (21) extend into the aluminum shell (1) and are mounted on the aluminum shell (1); The two sides of the fixing plate (21) are provided with chamfers.
2. The aluminum housing for reinforcing the structural strength of a blade cell according to claim 1, characterized by, The two sides of the inner recess (22) are provided with circular arcs.
3. The aluminum housing to reinforce the structural strength of a blade cell according to claim 1, characterized by, The shape of the aluminum shell (1) is provided as a rectangular structure.