Impact-resistant power battery shell

Abstract

The utility model discloses an impact-resistant power battery shell. The impact-resistant power battery shell comprises a power battery shell body, the limiting outer frame is mounted on the outer side of the power battery shell; the positioning piece is mounted on the outer surface of the power battery shell and comprises limiting strips, reinforcing strips mounted between the adjacent limiting strips and impact-resistant strips embedded into the reinforcing strips; the outer protective shell is combined and connected with the power battery shell and comprises a protective outer shell, a limiting piece and a buffering piece, and the limiting piece comprises a buffering inner layer plate installed on the inner side wall of the protective outer shell and a limiting protrusion installed on the inner side wall of the buffering inner layer plate; a power battery shell is of a multi-layer reinforced protection design capable of preventing collision deformation, a protection shell serves as a layer of impact-resistant protection design, a buffering inner layer plate, a limiting protrusion, a limiting strip, a reinforcing strip and an impact-resistant strip serve as a layer of protection and buffering design, a fixing plate and a buffering bottom plate form a layer of protection and buffering design, and impact resistance and protectiveness are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to battery shell technical field, concretely relates to a kind of impact-resistant power battery shell. BACKGROUND

[0002] Power battery is mainly used for providing power for electric vehicle, electric train, electric bicycle and golf cart, and is the power source for providing power for tools, and is mainly divided into dry battery, lithium battery and lead-acid battery, and the power battery shell is an important component of the battery, which is usually made of impact-resistant materials, such as metal materials (aluminum alloy, high-strength steel), composite materials (carbon fiber composite materials) and the like, for protecting the battery pack and maintaining its integrity and safety in the event of collision, falling and other accidents.

[0003] The power battery shell is made of a material with high rigidity to form a shell, and some have a PVC coating for preventing collision on the shell, and a layer of steel plate is added to form a multi-layer protective structure, but in this method, the thickness of the power battery shell is relatively thin, and when subjected to impact, the power battery shell may be deformed or twisted, resulting in cracks.

[0004] The existing power battery shell has no anti-collision deformation strengthening design on the battery shell, and therefore the present application proposes an impact-resistant power battery shell. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide an impact-resistant power battery shell to solve the problem of no anti-collision deformation strengthening design on the battery shell as mentioned in the background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an impact-resistant power battery shell, comprising

[0007] A power battery shell;

[0008] A limiting frame installed on the outer side of the power battery shell;

[0009] A positioning member installed on the outer surface of the power battery shell, comprising a limiting strip, a reinforcing strip installed between adjacent limiting strips, and an impact-resistant strip embedded in the reinforcing strip;

[0010] An outer protective shell combined with the power battery shell, comprising a protective shell, a limiting member and a buffer member, the limiting member comprising a buffer inner layer plate installed on the inner side wall of the protective shell, and a limiting protrusion installed on the inner side wall of the buffer inner layer plate, and the buffer member comprising a buffer bottom plate matching the inner bottom surface of the protective shell, a fixed column and a fixed plate perpendicular to each other;

[0011] Reinforcing column of vertical fixed plate

[0012] Preferably, the limiting strip is isosceles trapezoidal structure, and the limiting strip is provided with limiting grooves matched with the limiting protrusions.

[0013] Preferably, the reinforcing strip is U-shaped structure in section, and the reinforcing strip is provided with clamping grooves matched with the impact-resistant strips.

[0014] Preferably, the reinforcing strip is provided with limiting holes, and the impact-resistant strips are provided with through holes corresponding to the limiting holes and having the same hole diameter.

[0015] Preferably, the reinforcing column is matched with the limiting holes and the through holes.

[0016] Preferably, the surfaces of the limiting strip and the reinforcing strip are flush, the inner side wall of the buffer inner layer plate is matched with the surfaces of the limiting strip and the reinforcing strip, and the limiting outer frame and the buffer inner layer plate are frame structures.

[0017] Preferably, the protective shell is a rectangular box structure with an open top surface, and the buffer bottom plate is provided with a circular hole through which the fixing column penetrates.

[0018] Compared with the prior art, the utility model has the beneficial effects that:

[0019] In the utility model, the power battery shell is a multi-layer reinforced protective design against collision and deformation, the protective shell is a layer of impact-resistant protective design, the buffer inner layer plate, the limiting protrusion, the limiting strip, the reinforcing strip and the impact-resistant strip are a layer of protective and buffer design, and the fixing plate and the buffer bottom plate constitute a layer of protective and buffer design, so that the impact resistance and the protection are increased. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structural schematic view of the utility model;

[0021] Figure 2 It is a three-dimensional structural schematic view of the limiting strip of the utility model;

[0022] Figure 3 It is a three-dimensional structural schematic view of the protective shell of the utility model;

[0023] Figure 4 It is a three-dimensional structural schematic view of the utility model; Figure 3 It is an enlarged structural schematic view of A part in the utility model;

[0024] Figure 5 It is a sectional structural schematic view of the protective shell of the utility model;

[0025] Figure 6 It is a three-dimensional structural schematic view of the fixing plate of the utility model;

[0026] In the figure: 1, power battery shell; 2, define the outer frame; 3, define the strip; 4, reinforcing strip; 5, protective shell; 6, reinforcing column; 8, buffer bottom plate; 31, define the slot; 41, impact-resistant strip; 42, define the hole; 51, buffer inner layer plate; 52, limit the protrusion; 71, fixed column; 72, fixed plate. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] EMBODIMENT

[0029] Please refer to Figures 1 to 6The utility model provides a kind of technical scheme: a kind of impact-resistant power battery shell, including power battery shell 1, power battery shell 1 is made of impact-resistant metal material, such as aluminium alloy steel material;Limiting frame 2 is installed on the outside of power battery shell 1, limiting frame 2 is connected with power battery shell 1 by strong glue bonding;Positioning member is installed on the outer surface of power battery shell 1, including limiting strip 3, strengthening strip 4 is installed between adjacent limiting strip 3, impact-resistant strip 41 is embedded in strengthening strip 4 inside, limiting strip 3 and strengthening strip 4 are welded connection, limiting strip 3 and strengthening strip 4 are connected with power battery shell 1 by strong glue bonding, limiting strip 3 and strengthening strip 4 are made of high-strength, impact-resistant aluminium alloy metal material, limiting strip 3 and strengthening strip 4 are designed as anti-deformation reinforcing rib, increase the structural strength of protective shell 5, avoid deformation of protective shell 5 after being collided seriously, impact-resistant strip 41 is supported by high-strength, rigid carbon fiber composite material, impact-resistant strip 41 increases the strength of strengthening strip 4, avoid deformation of strengthening strip 4 seriously;Outer protective shell is combined with power battery shell 1 and connected, including protective shell 5, limiting piece and buffer piece, the limiting piece includes buffer inner layer plate 51 installed on the inner side wall of protective shell 5, limiting protrusion 52 is installed on the inner side wall of buffer inner layer plate 51, buffer inner layer plate 51 and limiting protrusion 52 are supported by foam material, improve rigidity while having buffering property, buffer inner layer plate 51 and limiting protrusion 52 are as the sandwich layer between protective shell 5 and limiting strip 3 and strengthening strip 4, increase strength and buffering property, the buffer piece includes buffer bottom plate 8 consistent with the inner bottom surface of protective shell 5, mutually perpendicular fixed column 71 and fixed plate 72, buffer bottom plate 8 is made of foam material, fixed column 71 and fixed plate 72 are made of aluminium alloy material, buffer bottom plate 8 and fixed column 71 and fixed plate 72 are as a layer of protection design, avoid the bottom of power battery shell 1 that falls to be collided strongly;Strengthening column 6 is vertically fixed to plate 72, strengthening column 6 is made of plastic material, when protective shell 5 is installed, strengthening column 6 penetrates strengthening strip 4 and impact-resistant strip 41, further increase the stability of strengthening strip 4 and impact-resistant strip 41.

[0030] In the embodiment, limiting strip 3 is isosceles trapezoidal structure, limiting groove 31 is formed on limiting strip 3 and matched with corresponding limiting protrusion 52, when protective shell 5 is installed, limiting protrusion 52 is connected with limiting strip 3 by clamping, limiting protrusion 52 and limiting strip 3 form a layer of reinforcing structure, increase impact resistance.

[0031] In the embodiment, the cross section of strengthening strip 4 is "U" type structure, clamping groove is arranged in strengthening strip 4 and matched with impact-resistant strip 41, impact-resistant strip 41 is filled in clamping groove, impact-resistant strip 41 increases the strength of strengthening strip 4.

[0032] In the embodiment, the reinforcing strip 4 is provided with a limiting hole 42, the impact-resistant strip 41 is provided with a through hole corresponding to the limiting hole 42 and having the same hole diameter, and the reinforcing column 6 is matched with the corresponding limiting hole 42 and through hole, so that when the protective shell 5 is installed, the reinforcing column 6 penetrates through the reinforcing strip 4 and the impact-resistant strip 41, and the stability of the reinforcing strip 4 and the impact-resistant strip 41 is further increased.

[0033] In the embodiment, the surfaces of the limiting strip 3 and the reinforcing strip 4 on the same side are flush, the inner side wall of the buffer inner layer plate 51 is matched with the surfaces of the limiting strip 3 and the reinforcing strip 4, the limiting frame 2 and the buffer inner layer plate 51 are in a frame structure, the buffer inner layer plate 51 is designed as a layer of protection and buffer, the protection is increased, and the limiting frame 2 is connected with the protective shell 5 through welding.

[0034] In the embodiment, the protective shell 5 is a rectangular box structure with an open top surface, the buffer bottom plate 8 is provided with a circular hole through which the fixing column 71 penetrates, the fixing column 71 penetrates through the buffer bottom plate 8, and the fixing plate 72 is pressed against the buffer bottom plate 8, so as to be designed as a layer of protection and buffer, and the protection is increased.

[0035] Working principle and use process of the utility model:

[0036] The outer side of the power battery shell 1 is provided with the protective shell 5, and the protective shell 5 is designed as a layer of impact-resistant protection;

[0037] When the protective shell 5 is installed on the outer side of the power battery shell 1, the limiting protrusion 52 is connected with the limiting strip 3 in a clamping mode, the limiting protrusion 52 and the limiting strip 3 form a layer of reinforcing structure, the reinforcing column 6 penetrates through the reinforcing strip 4 and the impact-resistant strip 41, the stability of the reinforcing strip 4 and the impact-resistant strip 41 is further increased, the buffer inner layer plate 51, the limiting protrusion 52, the limiting strip 3, the reinforcing strip 4 and the impact-resistant strip 41 are designed as a layer of protection and buffer, and the protection is increased;

[0038] The fixing column 71 penetrates through the buffer bottom plate 8, the fixing plate 72 is pressed against the buffer bottom plate 8, and a layer of protection and buffer is formed, and the protection is increased.

[0039] In summary, the power battery shell 1 is a multi-layer reinforcing protection design against collision deformation, the protective shell 5 is designed as a layer of impact-resistant protection, the buffer inner layer plate 51, the limiting protrusion 52, the limiting strip 3, the reinforcing strip 4 and the impact-resistant strip 41 are designed as a layer of protection and buffer, the fixing plate 72 and the buffer bottom plate 8 are designed as a layer of protection and buffer, and the impact resistance and protection are increased.

[0040] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An impact resistant power cell housing characterized by: The utility model relates to a power battery shell, which comprises a power battery shell (1), a limiting frame (2) mounted on the outer side of the power battery shell (1), a positioning piece mounted on the outer surface of the power battery shell (1), and an outer protective shell combined with the power battery shell (1). The positioning piece comprises limiting strips (3), reinforcing strips (4) mounted between adjacent limiting strips (3), and impact-resistant strips (41) embedded in the reinforcing strips (4). The outer protective shell comprises a protective shell (5), a limiting piece comprising a buffer inner layer plate (51) mounted on the inner side wall of the protective shell (5) and limiting protrusions (52) mounted on the inner side wall of the buffer inner layer plate (51), and a buffer piece comprising a buffer bottom plate (8) matching the inner bottom surface of the protective shell (5), fixed columns (71), and fixed plates (72). The reinforcing columns (6) of the fixed plates (72) are perpendicular to the fixed columns (71). The limiting strips (3) are isosceles trapezoidal in structure, and limiting grooves (31) are formed in the limiting strips (3) to cooperate with the limiting protrusions (52). The reinforcing strips (4) are "U"-shaped in cross section, and clamping grooves are formed in the reinforcing strips (4) to cooperate with the impact-resistant strips (41).

2. The impact resistant power cell housing of claim 1, wherein: Limiting holes (42) are formed in the reinforcing strips (4), and through holes are formed in the impact-resistant strips (41) to match the limiting holes (42).

3. The impact resistant power cell housing of claim 1, wherein: The reinforcing columns (6) match the limiting holes (42) and the through holes.

4. The impact resistant battery case of claim 1, wherein: The surfaces of the limiting strips (3) and the reinforcing strips (4) on the same side are flush, the inner side wall of the buffer inner layer plate (51) matches the surfaces of the limiting strips (3) and the reinforcing strips (4), and the limiting frame (2) and the buffer inner layer plate (51) are frame structures.

5. The impact resistant power cell housing of claim 4, wherein: The protective shell (5) is a rectangular box structure with an open top surface, and the buffer bottom plate (8) is provided with circular holes for the fixed columns (71) to pass through.

6. The impact resistant battery case of claim 1, wherein: ​ 7. The impact resistant battery case of claim 1, wherein: ​

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