Battery box with anti-collision beam

Abstract

The utility model discloses a battery box with anti-collision beams, and relates to the field of battery boxes, the battery box comprises a box body, at least two anti-collision beams mounted on the bottom surface of the box body, and an anti-collision bottom plate mounted on the anti-collision beams, the box body comprises a framework and a panel, the framework is composed of a plurality of connecting rods which are located on the edge of the box body, erected on the side supporting rods and transversely and longitudinally connected with the adjacent side supporting rods. The anti-collision beam is connected and matched with the framework through at least two energy absorption boxes connected with the bottom ends of the supporting rods, so that an energy absorption area is formed between the anti-collision beam and the bottom face of the box body in a spaced mode. The anti-collision bottom plate is installed on the anti-collision beam and matched with the bottom face of the box body at intervals to protect the bottom face of the box body. According to the battery box, the anti-collision capability of the battery box can be remarkably improved by utilizing the design of the anti-collision beam, and the collision force can be effectively dispersed to each part of the box body through the reasonable mechanical structure design, so that the local stress concentration is reduced, and the safety and the integrity of an internal battery are effectively protected.

Description

Technical Field

[0001] This application relates to the field of battery boxes, and particularly to a battery box with a collision beam. Background Art

[0002] The existing battery box technology has been widely applied in fields such as electric vehicles and power tools. These battery boxes are usually made of metal or composite materials to provide good structural strength and durability. However, with the development of battery technology and the popularization of electric devices, the design requirements for battery boxes are constantly increasing. It is not only necessary to ensure the stable installation of the battery but also to ensure safety under various working conditions.

[0003] When the battery box in the prior art is impacted or collided, it is prone to deformation of the box body due to unreasonable structural design, thus affecting the safety and performance of the battery. This situation is particularly obvious in traffic accidents. When a vehicle collides, the structural strength of the traditional battery box may not be sufficient to resist strong external impact forces, resulting in deformation, leakage of the battery, and even serious safety hazards such as fire. The prior art has improved the impact resistance of the battery box to a certain extent by increasing the thickness of the box body or using high-strength materials, but these improvement measures often increase the weight and manufacturing cost of the battery box, and the effect is limited in actual use.

[0004] The main reason for the above problems is that the traditional battery box design usually takes structural strength as the main consideration and ignores the effective dispersion and absorption of external impact forces. The prior art lacks a systematic design for the anti-collision function, resulting in the inability to effectively disperse the impact force when the battery box is impacted. The impact force is concentrated on a certain part, which is extremely likely to cause structural failure. In addition, due to the limited internal space of the battery box and the compact arrangement of internal components, when the impact force is transmitted to the internal battery, the risk of battery damage is further increased.

[0005] In view of this, it is of great significance to develop a battery box with a collision beam. Utility Model Content

[0006] The purpose of this application aims to at least overcome one deficiency existing in the prior art, and provides a battery box with a collision beam. The battery box can not only significantly improve the impact resistance of the battery box by using the design of the collision beam, but also effectively disperse the impact force to each part of the box body through reasonable mechanical structure design, reduce local stress concentration, and thus effectively protect the safety and integrity of the internal battery.

[0007] To achieve the above object, the present application discloses a battery box with a collision beam. The battery box includes a box body, at least two collision beams installed on the bottom surface of the box body, and a collision bottom plate installed on the collision beams. Among them, the box body includes a skeleton and a panel. The skeleton consists of several side support rods standing on the edge of the box body and connecting rods connecting adjacent side support rods horizontally and vertically; the collision beam is connected and cooperated with the skeleton through at least two energy absorption boxes connected to the bottom ends of the support rods, so that an energy absorption area is spaced between the collision beam and the bottom surface of the box body; the collision bottom plate is installed on the collision beam and is spaced and cooperated with the bottom surface of the box body to protect the bottom surface of the box body.

[0008] In some embodiments, the energy absorption box is detachably installed on the skeleton by bolts.

[0009] In some embodiments, the panel at the bottom of the box body is a composite panel, which is composed of an inner metal plate layer, an intermediate rubber layer and an outer glass fiber plate layer.

[0010] In some embodiments, a sealed battery installation chamber is formed in the box body, and at least one liquid cooling heat exchange plate for heat exchange and temperature control of the battery is provided in the battery installation chamber.

[0011] In some embodiments, the collision bottom plate is in a U shape, seals the bottom surface of the box body to form a sealed energy absorption chamber, and a paint layer is provided on the upper surface of the collision bottom plate.

[0012] In some embodiments, the cross section of the collision beam is in a field shape.

[0013] Compared with the prior art, through the design of the collision beam and the energy absorption box, the battery box forms an energy absorption area, effectively absorbs and disperses the external impact force, thereby protecting the overall structure of the battery box and the safety of the internal battery. In addition, the battery box also adopts a multi-layer composite panel and a liquid cooling heat exchange plate design, which not only enhances the strength and shock absorption effect of the box body, but also provides efficient temperature control management for the battery, ensuring the stability and safety of the battery during operation.

[0014] The beneficial effects listed above do not exhaust all advantages. Other potential beneficial effects and detailed technical implementation manners will be further disclosed in the embodiments or other description parts of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] After reading the following specific implementation manners in conjunction with the drawings, various aspects of the present disclosure will be better understood. Sometimes, the positions, sizes, and ranges of the structures shown in the drawings and the like do not represent the actual positions, sizes, and ranges, etc. In the drawings:

[0016] Figure 1 is a schematic structural diagram of an embodiment disclosed in the present application.

[0017] Figure 2It is a schematic structural diagram of an embodiment disclosed in the present application from another perspective.

[0018] Figure 3 It is a schematic structural diagram of an embodiment disclosed in the present application from yet another perspective. Detailed implementation manners

[0019] The present disclosure will be described below 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 fully explain the protection scope 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.

[0020] 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 deformed.

[0021] 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, technologies, methods, and devices known to those of ordinary skill in the relevant fields may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorized specification.

[0022] The singular forms "a", "the", and "said" used in the specification include the plural forms unless clearly specified. The terms "including", "comprising", 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

[0023] As Figures 1 to 3 shown, this embodiment discloses a battery box with a bumper beam. The overall structure includes key components such as a box body 1, a bumper beam 6, an energy absorption box 4, and a bumper bottom plate 7. Through precise structural design and tight connection and cooperation of these components, the battery box can effectively protect the internal battery when suffering external impacts, and provide excellent heat dissipation, sealing performance, as well as convenient maintenance and replacement capabilities.

[0024] The box body 1 is composed of a skeleton 2 and a panel 3. The skeleton 2 is the load-bearing structure of the battery box and is made of high-strength alloy steel. The skeleton 2 includes a plurality of side support rods vertically arranged at the edge of the box body 1. The diameter of each side support rod is 12 mm to provide sufficient structural strength and rigidity to ensure the stability of the box body under various working environments. These support rods are connected to each other by transverse and longitudinal connecting rods with a diameter of 10 mm, forming a solid frame structure as a whole, which can withstand multi-directional external forces.

[0025] The panel 3 is the outer shell of the box body 1 and is made of composite materials. It mainly includes three layers: the inner layer is an aluminum alloy plate with a thickness of 1.5 mm, which has excellent strength and thermal conductivity; the middle layer is a rubber layer with a thickness of 3 mm, which has good elasticity and energy absorption capacity; the outer layer is a fiberglass plate with a thickness of 2 mm, which provides excellent corrosion resistance and impact resistance. The design of this multi-layer structure not only improves the overall strength of the panel 3 but also enhances the shock absorption effect and durability of the battery box. The middle rubber layer can effectively absorb impact energy when subjected to external impacts, reducing the direct impact on the batteries inside the box body, thereby improving the overall safety.

[0026] The anti-collision beam 6 is installed on the bottom surface of the box body 1 and serves as an important protection device for the battery box. The anti-collision beam 6 is connected to the skeleton 2 through at least two energy-absorbing boxes 4. These energy-absorbing boxes 4 are made of high-toughness aluminum alloy materials with a thickness of 2.5 mm. They can undergo plastic deformation when subjected to strong impacts to absorb and disperse external impact energy. The energy-absorbing boxes 4 are detachably fixed to the bottom end of the skeleton 2 by M10 bolts. This design not only facilitates the installation and replacement of the anti-collision beam 6 but also ensures the effective energy absorption and buffering functions of the energy-absorbing boxes 4 during impacts. The cross-section of the anti-collision beam 6 is designed in a "field" shape with a wall thickness of about 4 mm. This structure provides high bending and compressive resistance, enabling the anti-collision beam 6 to maintain its shape when subjected to external forces and effectively enhancing the anti-impact ability of the battery box. The anti-collision beam 6 is designed as a replaceable component. When it is damaged in an accident, it can be easily disassembled and replaced to keep the protection function of the battery box continuously effective.

[0027] The anti-collision bottom plate 7 is installed on the top of the anti-collision beam 6 and forms a spaced fit with the bottom surface of the box body 1 to form an energy-absorbing area 5, which is mainly used to protect the bottom surface of the box body 1 from external impacts and abrasions. The anti-collision bottom plate 7 is made of stainless steel or high-strength aluminum alloy materials with a thickness of 3 mm.

[0028] As a technical preference, the anti-collision bottom plate 7 is designed in a "U" shape and can seal the bottom surface of the box body 1, thus forming a closed energy-absorbing chamber (not sealed in the figure). When the battery box encounters a strong impact, the air in the energy-absorbing chamber and the structure of the anti-collision bottom plate 7 will jointly play a buffering role to further reduce the impact of the impact force on the box body 1 and protect the safety of the internal batteries.

[0029] In this embodiment, the upper surface of the anti-collision base plate 7 is coated with a wear-resistant anti-corrosion paint layer with a thickness of 0.2 mm. When a collision occurs, the anti-collision base plate 7 may come into contact with the bottom surface of the box body 1 due to the impact force. In this case, part of the anti-corrosion paint layer will be transferred and adhered to the bottom surface of the box body 1 due to friction or adhesion. By observing and analyzing the adhesion position and distribution of the paint layer on the bottom surface of the box body, maintenance personnel can determine the intensity of the collision and the possible impact position. This information is of great significance for subsequent inspection and maintenance, and can help technicians more accurately evaluate the damage to the battery box and formulate corresponding repair or replacement strategies, thereby improving the maintenance efficiency and safety of the battery box.

[0030] A sealed battery installation compartment is provided in the box body 1, which is specially used to accommodate and fix the battery. The structural thickness of the battery installation compartment is 3 mm, and it is made of aluminum alloy material. It has good strength and sealing, ensuring the safety and stability of the battery in the compartment. In order to ensure the temperature stability of the battery during operation, a liquid cooling heat exchange plate is also provided in the battery installation compartment. The liquid cooling heat exchange plate is made of a copper plate with a thickness of 1.5 mm. The copper plate is provided with a coolant channel with a diameter of 6 mm. The coolant circulates through these channels, quickly taking away the heat generated by the battery during operation, keeping the battery temperature within a reasonable range, and preventing battery performance degradation or damage due to overheating. The design of the liquid cooling heat exchange plate is particularly suitable for applications in long-term operation or high-load working environments, and can effectively improve the efficiency and service life of the battery.

[0031] The battery box in this embodiment ensures high strength, high safety and high durability through reasonable structural design and material selection. The combined design of the anti-collision beam 6 and the energy absorption box 4 not only provides excellent impact resistance, but also enables the battery box to effectively disperse and absorb the impact force through the plastic deformation of the energy absorption box 4 and the compressive performance of the anti-collision beam 6 when it is subjected to a strong impact, thereby protecting the internal battery from damage.

[0032] At the same time, the U-shaped design of the anti-collision bottom plate 7 and the structure of the energy absorption zone 5 effectively enhance the protection capability of the bottom surface of the box body 1. Even when subjected to a strong impact, the air cushioning effect of the energy absorption zone 5 can effectively reduce the impact force.

[0033] In addition, the addition of a liquid-cooled heat exchange plate allows the battery to always remain within an appropriate temperature range during operation, avoiding damage caused by overheating.

[0034] In practical applications, such as in the field of electric vehicles or power tools, especially in environments where collisions may occur or long-term high-intensity work is carried out, the design of this battery box can ensure the safety and stability of the equipment, reducing the risk of failures caused by impacts or high temperatures. Through the optimized combination of various components and the easy-to-maintain design,

[0035] The battery box in this embodiment can not only provide excellent protection performance, but also greatly improve the service life and reliability of the equipment, meet the high requirements of the market for battery protection performance, and has broad application prospects and significant practical value.

[0036] Although the exemplary embodiments of the present disclosure have been described, those skilled in the art should 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 protection scope 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. A battery box with a bumper beam, characterized in that, The battery box includes: a box body, at least two anti-collision beams installed on the bottom surface of the box body, and an anti-collision bottom plate installed on the anti-collision beams. Among them, the box body includes a skeleton and a panel. The skeleton consists of several side support rods standing on the edge of the box body and connecting rods connecting adjacent side support rods horizontally and vertically; the anti-collision beam is connected and cooperated with the skeleton through at least two energy-absorbing boxes connected to the bottom ends of the support rods, so that an energy-absorbing area is spaced between the anti-collision beam and the bottom surface of the box body; the anti-collision bottom plate is installed on the anti-collision beam and is spaced and cooperated with the bottom surface of the box body to protect the bottom surface of the box body.

2. The battery box with a collision avoidance beam as described in claim 1, characterized in that: The energy-absorbing box is detachably installed on the skeleton by bolts.

3. The battery box with a bumper beam as described in claim 1, characterized in that: The panel at the bottom of the box body is a composite panel, which consists of an inner metal plate layer, an intermediate rubber layer and an outer fiberglass plate layer.

4. A battery box with a collision avoidance beam as described in claim 1, characterized in that: A sealed battery installation compartment is formed inside the box body, and at least one liquid-cooled heat exchange plate for heat exchange and temperature control of the battery is provided in the battery installation compartment.

5. A battery box with a collision avoidance beam as described in claim 1, characterized in that: The anti-collision bottom plate is in a U shape, seals the bottom surface of the box body to form a sealed energy-absorbing chamber, and a paint layer is provided on the upper surface of the anti-collision bottom plate.

6. The battery box with a collision avoidance beam as described in claim 1, characterized in that: The cross-section of the anti-collision beam is in a square shape.

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