A waterproof aluminum alloy battery box for new energy marine power

Abstract

This utility model relates to a new energy marine power aluminum alloy battery box with excellent waterproof performance, including a box body, a box cover at the top of the box body, a discharge interface on the left side of the front end of the box body, a charging interface on the right side of the front end of the box body, a battery housing cavity inside the box body, a support frame at the lower end of the battery housing cavity, and a support and reinforcing skeleton evenly distributed on the upper and lower walls of the battery housing cavity. The box body is divided into an inner layer and an outer layer. This battery box is sealed by setting a stacked locking block that fits into the upper end of the box body. At the same time, the sandwich cavity formed by the inner and outer layers of the box body can buffer the impact from the outside. By setting the support and reinforcing skeleton distributed along the inner wall of the battery housing cavity and welding and fixing it together with the protective corner of the support frame, the structural strength is increased, which is used to protect the stability of the battery in the battery housing cavity.

Description

Technical Field

[0001] This utility model relates to the field of battery box technology, and in particular to a new energy marine power aluminum alloy battery box with excellent waterproof performance. Background Technology

[0002] A battery box is a group of batteries consisting of several individual batteries, a box, a battery management system, and related installation structural components (equipment). It has a standard battery box structure and is mainly used to protect the battery modules and ensure their safe and stable operation in complex environments. As the physical carrier of the battery system, the box must not only withstand mechanical shock, vibration, and temperature changes, but also have functions such as waterproofing, dustproofing, fireproofing, and electromagnetic shielding.

[0003] Patent application number CN202420036147.5 is a Chinese utility model patent, disclosing a battery box and battery box assembly, including: a battery box body, a box cover, and battery modules. The battery box body and the box cover cooperate to form a closed space to accommodate multiple sets of battery modules. Both the battery box body and the box cover are provided with stamping grooves. The stamping grooves on the bottom of the battery box body and the box cover of this application allow the battery box body of the upper battery box and the box cover of the lower battery box to be nested and stacked, saving on guide accessories for modular stacked battery boxes and reducing production costs. However, this battery box has the following problems: firstly, the structural strength of the battery box is not high; secondly, the waterproof sealing performance of the battery box is poor. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of the existing technology. This battery box is designed to be embedded and sealed by a stacked locking block that fits into the upper part of the box body. At the same time, the sandwich cavity formed by the inner and outer layers of the box body can buffer external impacts. By setting a supporting and reinforcing frame distributed along the inner wall of the battery housing cavity and welding and fixing it together with the protective corner of the support frame, the structural strength is increased, which is used to protect the stability of the battery in the battery housing cavity. This solves the technical problems of low structural strength and poor waterproof sealing of the battery box.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A new energy marine power aluminum alloy battery box with excellent waterproof performance includes a box body, a box cover at the top of the box body, a discharge interface on the left side of the front end of the box body, a charging interface on the right side of the front end of the box body, a battery housing cavity inside the box body, a support frame at the lower end of the battery housing cavity, and a support and reinforcing skeleton evenly distributed on the upper and lower sides of the inner wall of the battery housing cavity. The box body is divided into an inner layer and an outer layer.

[0007] As a preferred embodiment, the lower end of the lid is provided with a stacking block, which can be fitted into the upper end of the box body for sealing.

[0008] As a preferred embodiment, the support frame includes protective corners located at the four vertices of its upper end face, and the support frame has gaps evenly distributed at its center.

[0009] As a preferred embodiment, the number of supporting reinforcing frames is three. The supporting reinforcing frames are welded and fixed to the inner wall of the battery housing cavity and are distributed at intervals along the height direction of the inner wall of the battery housing cavity. The shape of each supporting reinforcing frame matches the contour of the corresponding inner wall surface of the battery housing cavity.

[0010] As a preferred embodiment, a cavity is provided between the inner and outer layers, and the cavity penetrates the side wall of the housing.

[0011] As another preferred embodiment, both the surface of the box body and the surface of the box cover are provided with a corrosion-resistant aluminum alloy coating, and the corrosion-resistant aluminum alloy coating material is anodized electrophoretic coating.

[0012] The beneficial effects of this utility model are:

[0013] (1) In this utility model, the stacked card block at the lower end of the cover is embedded in the upper end of the box to form a seal. When the cover is closed, the card block is tightly fitted with the edge of the box, effectively preventing external moisture from seeping into the battery cavity, and the waterproof sealing is excellent.

[0014] (2) In this utility model, the box is divided into an inner layer and an outer layer, and a cavity that penetrates the side wall is provided between the inner layer and the outer layer as a buffer layer of the box to buffer the external impact pressure, ensure the stability of the battery housing cavity, and strengthen the overall structural strength of the battery box.

[0015] (3) In this utility model, the supporting and reinforcing skeleton is evenly distributed along the height direction of the inner wall of the battery cavity. The shape of each skeleton is precisely matched with the inner wall contour and is fixed by welding to form a ring-shaped reinforcing frame, which significantly enhances the deformation resistance of the battery cavity and resists the vibration during ship navigation. When the battery is in the battery cavity, the supporting and reinforcing skeleton will abut against the side of the battery to form contact support at the upper, middle and lower height positions to prevent the battery from shaking. At the same time, combined with the protection corners at the four vertices of the upper end face of the support frame, it provides protection for the four corners of the lower end of the battery, effectively preventing the battery from shifting or colliding during bumps.

[0016] In summary, this device has the advantages of excellent waterproof sealing, enhanced overall structural strength of the battery box, and effective prevention of battery displacement or collision during bumps, making it particularly suitable for the field of battery box technology. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the 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.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the battery housing structure in this utility model.

[0020] Figure 3 This is a schematic diagram showing the positions of the inner layer, outer layer, and interlayer cavity structure in this utility model.

[0021] Figure 4 This is a schematic diagram showing the position of the stacked card blocks in this utility model.

[0022] Figure 5 This is a schematic diagram showing the positions of the supporting and reinforcing skeleton and the support frame in this utility model.

[0023] Figure 6 This is a schematic diagram of the support frame structure in this utility model. Detailed Implementation

[0024] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0025] Example 1

[0026] like Figures 1 to 6 As shown, this utility model provides a new energy marine power aluminum alloy battery box with excellent waterproof performance, including a box body 1, a box cover 2 at the upper end of the box body 1, a discharge interface 3 on the left side of the front end of the box body 1, a charging interface 4 on the right side of the front end of the box body 1, a battery receiving cavity 5 inside the box body 1, a support frame 51 at the lower end of the battery receiving cavity 5, and a supporting and reinforcing skeleton 52 evenly distributed on the upper and lower sides of the inner wall of the battery receiving cavity 5. The box body 1 is divided into an inner layer 11 and an outer layer 12.

[0027] Furthermore, the lower end of the lid 2 is provided with a stacked locking block 21. The stacked locking block 21 can be fitted into the upper end of the box body 1 for sealing. The interface of the stacked locking block 21 has a two-stage stepped structure, which precisely matches the corresponding groove on the upper end of the box body 1. The side of the stacked locking block 21 is provided with a silicone sealing layer. When the lid 2 is closed, the locking block 21 forms a seal by being embedded into the box body 1.

[0028] Furthermore, the support frame 51 includes protective corners 511 located at the four vertices of its upper surface. The protective corners 511 are protruding aluminum alloy L-shaped blocks welded to the upper vertices of the support frame 51. When the battery is placed on the support frame 51, the four bottom corners of the battery are embedded in the limiting grooves formed by the protective corners 511. The support frame 51 has evenly distributed gaps 512 in its center. The gaps 512 can reduce the overall weight of the support frame 51 and also allow the battery to be in an elevated state inside the battery housing cavity 5, so that the bottom of the battery will not directly contact the bottom of the battery housing cavity 5.

[0029] Furthermore, there are three supporting and reinforcing frames 52. The supporting and reinforcing frames 52 are welded and fixed to the inner wall of the battery receiving cavity 5 and are distributed at intervals along the height direction of the inner wall of the battery receiving cavity 5. The shape of each supporting and reinforcing frame 52 matches the contour of the corresponding inner wall surface of the battery receiving cavity 5. The supporting and reinforcing frame 52 is a rectangular frame, corresponding to the rectangular cavity of the battery receiving cavity 5. After the battery is placed in the battery receiving cavity 5, the supporting and reinforcing frame 52 will abut against the side of the battery, with support contact at the top, middle and bottom, to prevent the battery from shaking during bumps and swaying.

[0030] Furthermore, a sandwich cavity 13 is provided between the inner layer 11 and the outer layer 12. The sandwich cavity 13 penetrates the side wall of the housing 1. Both the outer layer 12 and the inner layer 11 are made of aluminum alloy to provide high strength. The inner layer 11 and the outer layer 12 are connected by ribs welded at the boundary of the sandwich cavity 13. When the housing 1 is subjected to external impact, the impact force acts on the outer layer 12 first. The air layer in the sandwich cavity 13 absorbs and disperses the energy through compression deformation, which significantly weakens the impact force transmitted to the inner layer 11 and avoids affecting the battery inside the battery housing cavity 5.

[0031] Furthermore, both the surface of the box body 1 and the surface of the box cover 2 are provided with a corrosion-resistant aluminum alloy coating. The corrosion-resistant aluminum alloy coating material is an anodized electrophoretic coating. First, the aluminum alloy substrates of the box body 1 and the box cover 2 are anodized. Then, an organic film is coated on the anodized layer by an electrophoretic process.

[0032] Working process: First, the battery is manually placed into the battery housing cavity 5. When the battery is placed on the support frame 51, the four corners of the bottom of the battery are embedded in the limiting grooves formed by the protective corners 511. Then, the cover 2 is embedded in the upper part of the box body 1 through the stacked locking block 21 at its lower end, effectively blocking the intrusion of external moisture. When the box body 1 is subjected to external impact, the impact force is first applied to the outer layer 12. The air layer in the interlayer cavity 13 absorbs and disperses the energy through compression deformation, which significantly weakens the impact force transmitted to the inner layer 11, avoiding affecting the battery inside the battery housing cavity 5. At the same time, the three supporting reinforcing skeletons 52 on the inner wall of the battery housing cavity 5 will abut against the side of the battery, with support contact at the top, middle and bottom, preventing the battery from shaking during bumps and swaying.

[0033] In the description of this utility model, it should be understood that the terms "front and back", "left and right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0034] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the quantity.

[0035] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art under the technical guidance of this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. A new energy ship power aluminum alloy battery box with good waterproof performance, characterized in that: The box includes a housing (1), a cover (2) on the upper end of the housing (1), a discharge port (3) on the left front end of the housing (1), a charging port (4) on the right front end of the housing (1), a battery housing cavity (5) inside the housing (1), a support frame (51) at the lower end of the battery housing cavity (5), and a support and reinforcing skeleton (52) evenly distributed on the upper and lower sides of the inner wall of the battery housing cavity (5). The housing (1) is divided into an inner layer (11) and an outer layer (12). ​ 2. The new energy ship power aluminum alloy battery box with good waterproof performance according to claim 1, characterized in that, The lower end of the box cover (2) is provided with a stacked locking block (21), which can be fitted into the upper end of the box body (1) for sealing.

3. The new energy marine power aluminum alloy battery box with excellent waterproof performance according to claim 1, characterized in that, The support frame (51) includes protective corners (511) located at the four vertices of its upper surface, and the support frame (51) has gaps (512) evenly distributed in the center.

4. The new energy ship power aluminum alloy battery box with good waterproof performance according to claim 1, characterized in that, The number of the supporting reinforcement skeletons (52) is three. The supporting reinforcement skeletons (52) are welded and fixed to the inner wall of the battery receiving cavity (5) and are distributed at intervals along the height direction of the inner wall of the battery receiving cavity (5). The shape of each supporting reinforcement skeleton (52) matches the contour of the corresponding inner wall surface of the battery receiving cavity (5).

5. A new energy marine power aluminum alloy battery box with excellent waterproof performance according to claim 1, characterized in that, A sandwich cavity (13) is provided between the inner layer (11) and the outer layer (12), and the sandwich cavity (13) penetrates the side wall of the box body (1).

6. A new energy marine power aluminum alloy battery box with excellent waterproof performance according to claim 1, characterized in that, The surface of the box body (1) and the surface of the box cover (2) are both provided with a corrosion-resistant aluminum alloy coating, and the corrosion-resistant aluminum alloy coating material is anodized electrophoretic coating.

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