Anti-collision battery box

Abstract

The utility model discloses an anti-collision battery box, and relates to the field of battery boxes, the anti-collision battery box comprises an outer protection piece, a structure box and an elastic inner box, the structure box is hollow, and a sealed accommodating bin is formed; at least one outer protection piece is arranged on the outer side face of the structural box, the outer protection piece is an annular bent piece, the section of the outer protection piece is similar to a trapezoid, and the outer protection piece forms a protruding convex hull-shaped structural body outside the structural box; the elastic inner box made of flame-retardant resin is located in the containing bin and matched with the containing bin in size, the side face of the inner box is in a wave shape, the outer edge of the protrusion abuts against the side face of the containing bin, similarly, at least one arc-shaped protrusion is arranged on the bottom face of the elastic inner box, and the arc-shaped protrusion is matched with the bottom face of the containing bin in an abutting-against mode. The elastic inner box is elastically clamped and fixed in the accommodating bin; a battery bin used for containing a battery is formed in the elastic inner box. According to the battery box, effective buffer protection can be provided while the lightweight design is kept, and the direct impact of collision on the battery is reduced.

Description

Technical Field

[0001] This application relates to the field of battery boxes, and particularly to an anti-collision battery box. Background Art

[0002] In the prior art, the widespread popularization and application of electric vehicles have increased the requirements for the protection of battery boxes. As a key component for storing batteries, the safety of battery boxes is directly related to the performance of the entire vehicle and the safety of users. Currently, common battery boxes on the market are usually made of metal materials to ensure basic protection under collision and external impact. However, these traditional battery boxes have some obvious deficiencies in actual use.

[0003] First of all, it is difficult to achieve a balance between the strength and toughness of existing battery boxes. Although metal materials have high strength, they are prone to deformation or even rupture when encountering a large external impact, resulting in damage to the internal batteries. In addition, in order to improve strength, many battery boxes use thicker metal materials, which not only increases the weight of the battery box, affects the cruising range of electric vehicles, but also leads to an increase in manufacturing costs.

[0004] Secondly, the design of existing battery boxes fails to fully consider the buffer protection for internal batteries during collisions. Most battery boxes only focus on the outer shell and neglect the design of the internal structure, resulting in the risk that the battery may come into contact with the inner wall of the battery box during severe vibration or collision, thus triggering the risk of battery damage or short circuit. This design defect poses a significant safety hazard in actual operation, especially in high-intensity usage scenarios, such as when the vehicle is driving on rough roads or in a collision accident.

[0005] In view of the above problems, it is of great practical significance to develop a battery box with stronger protection capabilities. Summary of the Utility Model

[0006] The purpose of this application is to at least overcome one deficiency existing in the prior art, and provide an anti-collision battery box, which can provide effective buffer protection while maintaining a lightweight design, and reduce the direct impact of collision on the battery.

[0007] To achieve the above-mentioned purpose, the present application discloses an anti-collision battery box, including an outer protective member, a structural box, and an elastic inner box, wherein the structural box is hollow to form a sealed accommodating chamber; at least one outer protective member is arranged on the outer side surface of the structural box, and the outer protective member is an annular bending member with a trapezoidal cross-section, and the outer protective member forms a raised convex hull-like structure outside the structural box; the elastic inner box made of flame-retardant resin is located in the accommodating chamber and is adapted to the size of the accommodating chamber, the side surface of the inner box is wavy, and the outer edge of the protrusion presses on the side surface of the accommodating chamber, and similarly, the bottom surface of the elastic inner box is provided with at least one arc-shaped protrusion, and the arc-shaped protrusion is used to cooperate with the bottom surface of the accommodating chamber so that the elastic inner box is elastically clamped in the accommodating chamber; a battery chamber for accommodating batteries is formed in the elastic inner box.

[0008] In some embodiments, at least one liquid cooling plate for controlling the temperature of the battery compartment is provided in the elastic inner box.

[0009] In some embodiments, a buffer rubber layer is provided on the inner side surfaces of the elastic inner box and the structural box.

[0010] In some embodiments, the outer guard is detachably connected to the structural box by bolts.

[0011] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0012] The following are three beneficial effects of the anti-collision battery box technical solution:

[0013] 1. Enhanced impact resistance: The convex structure of the outer protective part and the wavy design of the elastic inner box can effectively disperse and buffer the external pressure when impacted by external force, reduce the direct impact on the internal battery, and thus improve the overall protection capability of the battery box.

[0014] 2. Improve the stability of battery fixation: The elastic inner box is fixed to the bottom of the storage compartment through the arc-shaped protrusion, and the wavy side design ensures that the battery compartment can still stably maintain the battery position in the event of vibration or collision, reducing the risk of battery damage or displacement.

[0015] 3. Effective temperature control management: By installing a liquid cooling plate in the elastic inner box, the temperature of the battery compartment can be better controlled to ensure that the battery can maintain a stable working state under high temperature or high-intensity working environment, extending the battery life and improving safety.

[0016] The above-listed beneficial effects are not exhaustive of all advantages. Other potential beneficial effects and detailed technical implementations will be further disclosed in the examples or other description parts of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] After reading the following detailed description in conjunction with the accompanying drawings, various aspects of the present disclosure will be better understood. In the drawings, the positions, dimensions, ranges, etc. of the various structures shown sometimes do not represent the actual positions, dimensions, ranges, etc. In the drawings:

[0018] Figure 1 is a schematic structural diagram of an embodiment disclosed in the present application.

[0019] Figure 2 is a schematic structural diagram of an embodiment of the present application from another perspective.

[0020] Figure 3 is a schematic internal structure diagram of an embodiment disclosed in the present application. Detailed Description

[0021] The present disclosure will hereinafter be described with reference to the accompanying drawings, in which several embodiments of the present disclosure are shown. However, it should be understood that the present disclosure can be presented in many different ways and is not limited to the embodiments described below; in fact, the embodiments described below are intended to make the disclosure of the present disclosure more complete and to fully explain the scope of protection of the present disclosure to those skilled in the art. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide more additional embodiments.

[0022] It should be understood that in all the drawings, the same reference numerals represent the same elements. In the drawings, for clarity, the dimensions of some features may be distorted.

[0023] It should be understood that the terms used in the specification are only for describing specific embodiments and are not intended to limit the present disclosure. All terms used in the specification (including technical terms and scientific terms) have the meanings commonly understood by those skilled in the art unless otherwise defined. For the sake of brevity and / or clarity, techniques, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said techniques, methods, and devices should be regarded as part of the authorized specification.

[0024] The singular forms "a", "the", and "said" used in the specification include the plural forms unless clearly specified. The terms "comprising", "including", and "containing" used in the specification indicate the presence of the claimed features, but do not exclude the presence of one or more other features. The term "and / or" used in the specification includes any and all combinations of one or more of the related listed items. Embodiment

[0025] As Figures 1 to 3As shown in the figure, this embodiment provides an anti-collision battery box, whose structure includes a structural box 1, an outer protective member 2, an elastic inner box 3, and a liquid cooling plate 4. Each component cooperates with each other to provide effective protection and buffering when the electric vehicle is subjected to external impact or vibration.

[0026] It should be understood that the anti-collision battery box described in this embodiment is designed specifically for micro electric vehicles and is suitable for battery packs with relatively small volume and light weight. During the design process, the requirements of lightweight and compactness were mainly considered to ensure that the battery box can be effectively installed within the limited space of the micro electric vehicle and provide sufficient protection capabilities.

[0027] It should be noted that since the structure and material selection of the battery box are aimed at achieving lightweight, its load-bearing capacity is limited and it is not suitable for large or overweight battery packs. This battery box is most suitable for the small battery packs used in micro electric vehicles, which can ensure safety while not affecting the vehicle's endurance performance and overall vehicle weight. This design fully meets the market demand of micro electric vehicles and provides an economical, efficient, and reliable battery protection solution.

[0028] In terms of the specific structure, the main part of the battery box is the structural box 1, which is made of lightweight and high-strength aluminum alloy material and has excellent compressive and tensile properties. The structural box 1 is formed into a hollow sealed accommodation chamber through precision machining. This accommodation chamber can not only provide good protection for internal components but also prevent water vapor and dust in the external environment from entering through the sealed design. The design of the structural box 1 pays special attention to the force distribution when it is impacted. Due to the rigidity and toughness of the material, the structural box 1 can effectively disperse the impact force to the entire box structure, avoiding deformation or rupture caused by excessive local stress.

[0029] On the outer side surface of the structural box 1, at least one outer protective member 2 is installed. The outer protective member 2 is made of high-toughness engineering plastic, such as polycarbonate material, and is processed into an annular bending member through a specific process, with a trapezoid-like cross-section design. This cross-section shape enables the outer protective member 2 to absorb part of the energy through bending and deformation during impact, thereby reducing the impact force transmitted to the structural box 1. The outer protective member 2 forms a convex structure on the outside of the structural box 1. This design not only improves the overall anti-impact ability of the structure but also transfers the stress point to a larger area when impacted, avoiding excessive local pressure. In addition, the outer protective member 2 is detachably connected to the structural box 1 through bolts, facilitating quick disassembly and installation during daily maintenance or component replacement.

[0030] The elastic inner box 3 is located in the sealed storage compartment of the structural box 1. It is made of flame-retardant resin material and has excellent flame-retardant properties and elasticity. The side of the elastic inner box 3 is designed to be wavy. This wavy structure can play a buffering role when it is hit by an external impact. The raised parts of the waves are in close contact with the side walls of the storage compartment. When external forces act on the battery box, these raised parts will deform first and absorb the impact energy, thereby reducing the direct impact on the inner box 3 and the internal batteries. The bottom surface of the elastic inner box 3 is also designed with arc-shaped protrusions, which conflict with the bottom surface of the storage compartment. Through this matching method, the elastic inner box 3 can be stably fixed in the storage compartment, which not only increases the stability of the structure, but also further enhances its anti-seismic performance.

[0031] In order to further enhance the protective effect of the battery box, the liquid cooling plate 4 is installed inside the elastic inner box 3, close to the battery compartment. These liquid cooling plates 4 are made of copper with high thermal conductivity, and are designed with precise flow channels inside for the circulation of coolant. When the vehicle is in a high temperature or long-term operation environment, the liquid cooling plate 4 can effectively remove the heat generated by the battery through the coolant to maintain the operating temperature of the battery within a safe range. This temperature control system not only helps to extend the service life of the battery, but also can remove part of the heat generated by the impact through the flow of coolant when the vehicle is hit, thereby avoiding potential risks caused by a sudden increase in temperature inside the battery box.

[0032] In addition, a buffer rubber layer is provided between the elastic inner box 3 and the inner side of the structural box 1. The rubber layer is made of high temperature resistant and aging resistant silicone rubber material. When the battery box is hit by an external impact, the buffer rubber layer will further reduce the transmission of vibration and provide additional heat insulation protection inside. This layer of rubber not only effectively absorbs the impact energy and prevents the structural box 1 from deforming, but also improves the overall durability and safety of the battery box.

[0033] In actual use scenarios, when the vehicle is traveling at high speed or encounters a sudden collision, the outer guard 2 first absorbs most of the impact force through its designed bending characteristics, and then disperses the remaining force to the entire box through the structural box 1 to avoid damage caused by single-point overload. At the same time, the elastic inner box 3 absorbs the remaining impact through its wavy design, and firmly fixes the inner box in the storage compartment through the arc-shaped protrusions to ensure that the internal battery compartment is stable and does not move. The liquid cooling plate 4 continues to work during this process to keep the battery temperature stable and ensure battery safety.

[0034] In summary, the anti-collision battery box described in this embodiment not only has excellent performance in impact resistance and stability through reasonable material selection and structural design, but also can ensure long-term stable operation of the battery through a precise temperature control system. These designs greatly improve the safety and durability of the battery box and are suitable for various harsh use environments.

[0035] While exemplary embodiments of the present disclosure have been described, those skilled in the art will understand that various changes and modifications can be made to the exemplary embodiments of the present disclosure without departing from the spirit and scope of the present disclosure in essence. Therefore, all changes and modifications are included within the scope of protection of the present disclosure defined by the claims. The present disclosure is defined by the appended claims, and equivalents of these claims are also included.

Claims

1. An anti-collision battery box, characterized in that: include: Outer protective parts, structural box, elastic inner box, wherein the structural box is hollow to form a sealed containing chamber; At least one outer protective member is arranged on the outer side surface of the structural box. The outer protective member is an annular bending member with a trapezoidal cross-section. The outer protective member forms a raised convex hull-like structure outside the structural box; the elastic inner box made of flame-retardant resin is located in the accommodating bin and is adapted to the size of the accommodating bin. The side surface of the inner box is wavy, and the outer edge of the raised portion presses against the side surface of the accommodating bin. Similarly, at least one arc-shaped protrusion is provided on the bottom surface of the elastic inner box, and the arc-shaped protrusion cooperates with the bottom surface of the accommodating bin to elastically fix the elastic inner box in the accommodating bin; a battery compartment for accommodating batteries is formed in the elastic inner box.

2. An anti-collision battery box as claimed in claim 1, characterized in that: At least one liquid cooling plate for controlling the temperature of the battery compartment is arranged in the elastic inner box.

3. The anti-collision battery box as claimed in claim 1, characterized in that: A buffer rubber layer is arranged on the inner side surfaces of the elastic inner box and the structural box.

4. The anti-collision battery box as claimed in claim 1, characterized in that: The outer guard is detachably connected to the structural box by bolts.

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