Double-body floating type battery box

Abstract

The utility model discloses a double-body floating type battery box and relates to the field of battery boxes, the double-body floating type battery box comprises an outer box body, an inner box body located in the outer box body and an elastic assembly located in the outer box body and matched with the inner box body, the outer box body comprises an outer base and an outer cover plate, and the outer base and the outer cover plate are matched to form a containing cavity; the inner box body is arranged in the accommodating cavity; the inner box body is hollow and is provided with a battery cavity for accommodating a battery; at least one through guide groove is formed in the inner box body in the vertical direction, and each guide groove is matched with the corresponding elastic assembly in an aligned mode. The elastic assembly comprises a guide rod matched with the guide groove and a spring installed at the upper end of the guide rod and used for pressing the inner box body towards the inner bottom face of the outer box body, and the lower end of the guide rod is fixedly connected with the base. According to the battery box, the floating type inner box is arranged in the outer box, so that the inner box can freely move when being impacted or punctured by external force, the transmission of the external force is effectively relieved, and the inner box is prevented from being punctured.

Description

Technical Field

[0001] This application relates to the field of battery boxes, and particularly to a double-body floating battery box. Background Art

[0002] In the prior art, electric vehicles and other battery-driven devices generally adopt a single-layer structure battery box. This kind of single-layer battery box is usually made of sturdy materials to ensure sufficient physical protection during vehicle driving or equipment operation. However, with the development of battery technology and the diversification of application scenarios, especially in some special usage environments, such as high-intensity impact, puncture or collision, etc., the protection effect of the traditional single-layer battery box is not ideal enough. Although these battery boxes can provide certain protection under normal conditions, when subjected to severe external forces, the battery cells inside the battery box may still face the risk of damage, which may further lead to serious safety accidents.

[0003] Due to its fixed nature, the structure of the traditional single-layer battery box cannot effectively absorb and buffer strong external impacts. When the battery box encounters puncture or severe impact, the external force is directly transmitted to the battery cells, easily triggering safety hazards such as deformation, short circuit or even explosion of the battery. In addition, when the battery box with a rigid structure encounters puncture, it cannot effectively disperse the external force, resulting in the force point being concentrated at a specific position, further increasing the risk of battery damage. This structural limitation makes it difficult for the traditional battery box to provide sufficient protection in the face of more demanding usage environments.

[0004] Therefore, there are significant deficiencies in the existing single-layer battery box structure, especially in extreme situations such as high-intensity impact or puncture. This deficiency not only affects the protection performance of the battery box but also poses a potential threat to the safety of battery-driven devices. To overcome these problems, there is an urgent need for a new technical solution that can provide more effective protection and reduce the possibility of battery damage when subjected to external force impact or puncture.

[0005] In this context, it is of great significance to develop a double-body floating battery box. Summary of the Utility Model

[0006] The purpose of this application aims to at least overcome one deficiency existing in the prior art, and provides a double-body floating battery box. A floating inner box is arranged inside the outer box of this battery box, so that when the inner box is subjected to external force impact or puncture, it can move freely, thereby effectively alleviating the transmission of external force and avoiding the inner box from being punctured.

[0007] To achieve the above-mentioned purpose, the present application discloses a double-body floating battery box, comprising an outer box, an inner box located in the outer box, and an elastic component located in the outer box and cooperating with the inner box, wherein the outer box comprises an outer base and an outer cover, the outer base and the outer cover cooperate to form a accommodating cavity; the inner box is arranged in the accommodating cavity; the inner box is hollowly provided with a battery cavity for accommodating batteries; at least one through guide groove is opened on the inner box in the vertical direction, each guide groove is aligned with the elastic component; the elastic component comprises a guide rod cooperating with the guide groove, and a spring installed at the upper end of the guide rod and used to press the inner box toward the inner bottom surface of the outer box, and the lower end of the guide rod is fixedly connected to the base.

[0008] In some embodiments, a protective plate is provided on the bottom surface of the outer box.

[0009] In some embodiments, the top surface and the bottom surface of the inner box body are provided with a rubber layer for buffering, and correspondingly, the inner bottom surface and the inner top surface of the inner box body are also provided with a rubber layer for buffering.

[0010] In some embodiments, the thickness of the accommodating cavity is 10-30 mm greater than that of the inner box.

[0011] In some embodiments, a rubber layer for buffering is provided on the outer side surface of the inner box body opposite to the inner side surface of the outer box body.

[0012] In some embodiments, the length and width of the inner box body are adapted to the accommodating cavity.

[0013] In some embodiments, at least one contact switch is provided on the bottom surface of the outer cover plate, and the contact switch is not in contact with the battery box in a normal state.

[0014] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0015] 1. Enhanced structural stability: The inner box can maintain a certain degree of floating in the outer box through the cooperation of the guide rod and the spring. At the same time, a buffer rubber layer is set in all directions of the inner box, which further enhances the overall structural stability and seismic resistance of the battery box.

[0016] 2. Improve battery safety: Since there is a gap between the design of the inner box and the accommodating cavity, and the elastic component can alleviate the movement of the inner box, the risk of the inner box being punctured or collided is reduced, thereby improving the overall safety of the battery.

[0017] 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

[0018] 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, and ranges of the various structures shown, etc., sometimes do not represent the actual positions, dimensions, and ranges, etc. In the drawings:

[0019] Figure 1 is a schematic diagram of the overall structure of an embodiment disclosed in the present application.

[0020] Figure 2 is a schematic diagram of the internal structure of an embodiment disclosed in the present application. Detailed Description

[0021] 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 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, 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.

[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 Figure 1 、 2 shown,

[0026] In this embodiment, a double-body floating battery box is disclosed. The battery box includes multiple components such as an outer box body 1, an inner box body 2, an elastic component 6, a protective plate, and a buffer rubber layer. Through precise design and reasonable cooperation of each component, when the battery box is subjected to external impacts, especially puncturing forces, it can effectively protect the internal battery cells, improving the overall safety performance and structural stability.

[0027] First, the outer box body 1 is composed of an outer base 3 and an outer cover plate 4. The outer base 3 and the outer cover plate 4 are closely fitted by means of buckles, bolts, or welding to form a sealed accommodating cavity 5. The material of the outer box body 1 is selected from high-strength metals or composite materials, such as aluminum alloy, stainless steel, or reinforced composite materials. These materials not only have high strength and durability but also can withstand external impact forces and environmental stresses. The outer base 3 is usually made by die-casting or stamping processes to ensure its sufficient strength to support the weight of the entire battery box and withstand external impacts. The outer cover plate 4 is manufactured by precision casting or die-casting processes and is closely fitted with the outer base 3 through a sealing ring or gasket to ensure the sealing performance of the accommodating cavity 5 and prevent the influence of the external environment on the inside of the battery box.

[0028] The inner box body 2 is placed inside the accommodating cavity 5 of the outer box body 1. Its design uses lightweight but strong materials, such as carbon fiber composite materials or high-strength engineering plastics. These materials not only reduce the overall weight of the battery box but also provide sufficient rigidity and impact resistance to ensure that the inner box body 2 will not easily deform or break when subjected to external forces. Inside the inner box body 2, a hollow battery cavity is designed to accommodate and protect the battery cells. The size of the battery cavity is precisely matched with the battery cells to ensure that the batteries will not shift due to shaking during transportation or use, and at the same time provide a closed environment for the batteries to prevent the intrusion of dust or moisture.

[0029] The floating effect between the inner box body 2 and the outer box body 1 is achieved through the elastic component 6. The elastic component 6 includes multiple guide rods and springs. Each guide rod is fixed to the outer base 3 of the outer box body 1 by welding or threaded connection. The material of the guide rods is selected from high-strength stainless steel or alloy steel. These materials have excellent corrosion resistance and mechanical strength and can maintain stability during long-term use. Springs are installed at the upper ends of the guide rods. The springs are made of high-strength spring steel to ensure that they will not undergo permanent deformation or failure under long-term compression. The springs are fixed to the upper ends of the guide rods through limit rings or buckles and cooperate with the guide grooves of the inner box body 2. The guide grooves are opened in the vertical direction of the inner box body 2 and run through the entire inner box body 2. The matching design of the guide grooves and the guide rods ensures that the inner box body 2 can freely float along the direction of the guide rods under the action of external forces, thereby effectively absorbing and alleviating external impact forces.

[0030] To further improve the protection performance, the top surface, bottom surface and the side surface opposite to the outer box body 1 of the inner box body 2 are all covered with buffer rubber layers. These rubber layers are made of silicone rubber or polyurethane materials, and have excellent elasticity, wear resistance and anti-aging performance. When subjected to external impact, the buffer rubber layer can absorb most of the impact energy, prevent the direct force on the inner box body 2, and further protect the internal battery cells from damage. In addition, the buffer rubber layer also plays a role in reducing the friction between the inner box body 2 and the outer box body 1, and extending the service life of the battery box.

[0031] To enhance the overall impact resistance of the battery box, a protective plate is designed on the bottom surface of the outer box body 1. The protective plate is made of high-strength metal plates, such as steel plates or aluminum plates, and is fixed to the bottom surface of the outer box body 1 by welding or bolts. The main function of the protective plate is to prevent external sharp objects from piercing the bottom surface of the outer box body 1, thereby further protecting the inner box body 2 and its internal battery cells. The designed thickness of the protective plate is optimized according to the specific application environment, and while ensuring the protection effect, the weight is minimized as much as possible to improve the portability and installation convenience of the battery box.

[0032] During the use of the battery box, for example, during the operation of an electric vehicle, if the vehicle collides or encounters sharp objects on the road, the battery box will first provide initial protection through the strong structure of the outer box body 1. When the external impact force exceeds a certain range, the spring in the elastic component 6 will be compressed, and the guide rod will guide the inner box body 2 to float along the guide groove, thereby effectively dispersing the impact force to a larger area of the outer box body 1, avoiding the inner box body 2 from being directly subjected to a strong impact. At the same time, the buffer rubber layer of the inner box body 2 can further absorb and relieve the remaining impact force, reduce the force on the battery cells, and prevent them from deforming, short-circuiting or other dangers.

[0033] In addition, the floating structure between the inner box body 2 and the outer box body 1 can also effectively cope with puncturing external forces. Even if an external sharp object pierces the outer box body 1, the inner box body 2 can still avoid direct contact with the piercing object through the floating and buffering mechanism, thereby preventing the battery cells inside the battery box from being damaged. Through this design, the battery box can still provide excellent protection effects in complex and harsh usage environments, significantly improving the safety of the battery system.

[0034] As an optional technology, in this embodiment, at least one contact switch is provided on the bottom surface of the outer cover plate 4. The contact switch is precisely installed on the inner bottom surface of the outer cover plate 4, and is designed to ensure that it will not come into contact with the inner box body 2 under the normal use state of the battery box. The main purpose of this design is to monitor the movement of the inner box body 2 when it is subjected to external impact and provide timely feedback to the user.

[0035] Specifically, when the battery box is in normal operation, the inner box body 2 is in its floating state and maintains a certain gap with the inner top surface of the outer box body 1 under the action of the elastic component 6. At this time, the contact switch is in an untriggered state and does not contact the inner box body 2. However, when the battery box is subjected to external impact or severe vibration, the inner box body 2 will move upward along the direction of the guide rod and the guide groove. If the impact force reaches a certain level, the inner box body 2 will be forced to move upward until it contacts the contact switch on the outer cover plate 4.

[0036] When the inner box body 2 contacts the contact switch, the contact switch will be triggered and immediately send out a collision induction signal. This signal can be transmitted through the circuit to the monitoring system or the control unit, triggering the alarm or prompt system to remind the user or maintenance personnel that the battery box may have been subjected to external force impact and suggesting an inspection and repair. This can effectively avoid potential safety hazards caused by potential battery damage and ensure that the battery box can be inspected and maintained in a timely manner after being impacted.

[0037] This design not only improves the safety performance of the battery box but also enhances the intelligent level of the system, enabling users to more actively maintain the battery box and prevent more serious problems caused by ignoring potential impact damage. In practical applications, for example, during the operation of electric vehicles or drones, the timely feedback of the collision induction signal is of great significance for ensuring the safe operation of the equipment.

[0038] The double-body floating battery box in this embodiment realizes the self-protection function of the battery box when encountering external force impact or puncture through innovative structural design and reasonable material selection. Its design not only optimizes the material to ensure the balance between strength and light weight but also greatly improves the impact resistance and puncture resistance of the battery box through the floating and buffering mechanisms in terms of structure. This technical solution is particularly applicable to high-demand battery systems, such as those in the fields of electric vehicles, power tools, and drones, to ensure the safe operation of the equipment in various complex environments by providing reliable battery protection.

[0039] 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 substantially departing from the spirit and scope of the present disclosure. 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 double-body floating battery box, characterized in that, include: An outer box body, an inner box body located in the outer box body, and an elastic component located in the outer box body and matched with the inner box body, wherein the outer box body includes an outer base and an outer cover plate, and the outer base and the outer cover plate cooperate to form a accommodating cavity; the inner box body is arranged in the accommodating cavity; the inner box body is hollowly provided with a battery cavity for accommodating batteries; at least one through guide groove is opened on the inner box body in the vertical direction, and each guide groove is aligned with the elastic component; the elastic component includes a guide rod matched with the guide groove, and a spring installed at the upper end of the guide rod and used to press the inner box body toward the inner bottom surface of the outer box body, and the lower end of the guide rod is fixedly connected to the base.

2. The dual-body floating battery box as described in claim 1, wherein: A protective plate is provided on the bottom surface of the outer box body.

3. A double-body floating battery box as described in claim 1, characterized in that: The top surface and the bottom surface of the inner box body are provided with a rubber layer for buffering. Correspondingly, the inner bottom surface and the inner top surface of the inner box body are also provided with a rubber layer for buffering.

4. A double-body floating battery box as described in claim 1, wherein: The thickness of the accommodating cavity is 10-30 mm greater than that of the inner box body.

5. A double-body floating battery box as described in claim 1, characterized in that: A rubber layer for buffering is provided on the outer side surface of the inner box body so as to face the inner side surface of the outer box body.

6. A double-body floating battery box as described in claim 1, characterized in that: The length and width of the inner box body are adapted to the accommodating cavity.

7. A double-body floating battery box as described in claim 1, characterized in that: At least one contact switch is arranged on the bottom surface of the outer cover plate, and the contact switch is not in contact with the battery box in a normal state.

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