A flexible guardrail device for new energy vehicles

Abstract

This application discloses a flexible guardrail device for new energy vehicles, belonging to the field of flexible guardrails. It includes: a mounting frame with a rectangular frame structure; a crossbar fixed in the middle section of the mounting frame; a buffer plate installed below the mounting frame; a sealed cavity inside the buffer plate; an embedded plate protruding from the bottom of the mounting frame, embedded within the sealed cavity; a buffer spring installed within the sealed cavity; a flexible buffer air cushion installed at the bottom of the buffer plate; fixing components installed at the four corners of the top of the mounting frame; and fixing components symmetrically installed on the crossbar. The beneficial effect of this application is that it provides a flexible guardrail device for new energy vehicles, effectively preventing deformation or damage to the battery box due to localized stress, achieving multi-directional impact absorption, providing progressive buffering during collisions, reducing instantaneous impact on the bottom of the battery box, and protecting the delicate internal structure of the battery.

Description

Technical Field

[0001] This application relates to the field of flexible guardrails, and more specifically, to a flexible guardrail device for new energy vehicles. Background Technology

[0002] New energy vehicles refer to automobiles that use unconventional vehicle fuels as their power source and integrate advanced technologies in vehicle power control and drive, resulting in vehicles with advanced technical principles and new technologies and structures. New energy vehicles include hybrid electric vehicles, pure electric vehicles, fuel cell electric vehicles, and other new energy vehicles. For protection, in the event of a collision, the battery at the bottom of a new energy vehicle is typically protected by flexible guardrails.

[0003] Existing guardrail devices mostly adopt a single-layer frame structure or a distributed fixing point design. The single-layer frame structure can only disperse local impacts and is difficult to cope with multi-directional collision forces, which can easily lead to local deformation of the battery box. Instantaneous impacts cannot form an effective impact gradient dissipation path and can be directly transmitted to the bottom of the battery box, threatening the safety of the internal delicate structure. Therefore, a flexible guardrail device for new energy vehicles is needed to help solve this problem. Utility Model Content

[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] The purpose of this application is to address the shortcomings of existing technologies by providing a flexible guardrail device for new energy vehicles. This addresses the problem that most existing guardrail devices adopt a single-layer frame structure or a distributed fixing point design. The single-layer frame structure can only disperse local impacts and is difficult to cope with multi-directional collision forces, which can easily lead to local deformation of the battery box. Instantaneous impacts cannot form an effective impact gradient dissipation path, and instantaneous impacts can be directly transmitted to the bottom of the battery box, threatening the safety of the internal precision structure.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] A flexible guardrail device for new energy vehicles includes: a mounting frame, the mounting frame having a rectangular frame structure, a crossbar fixed in the middle section of the mounting frame, a buffer plate installed below the mounting frame, a sealing cavity opened inside the buffer plate, an embedded plate protruding from the bottom of the mounting frame, the embedded plate being embedded in the sealing cavity, and a buffer spring for assisting the embedded plate in pressing down inside the sealing cavity;

[0008] A flexible cushioning air pad is installed at the bottom of the buffer plate, and fixing components are installed at the four corners of the top of the mounting frame. Fixing components are symmetrically installed on the crossbar, and the fixing components are installed in the mounting holes at the bottom of the battery box.

[0009] Furthermore, the fixing assembly includes a connecting column, which is fixed to the top of the mounting frame and the crossbeam respectively. The connecting column has a cavity inside, and a top pressure column is slidably disposed in the cavity. The connecting column has a compression cavity near its bottom outer edge, and a fixing column is slidably disposed in the compression cavity. An embedding plate is rotatably embedded at the bottom of the connecting column, and a lead screw is fixed at the top of the embedding plate. The lead screw is threaded onto the top pressure column, and the top pressure column and the lead screw are threaded together.

[0010] Furthermore, a sleeve plate is fixedly fitted onto the fixed column, and a return spring for assisting the sleeve plate in pressing is installed inside the extrusion cavity.

[0011] Furthermore, the fixing column is generally oblong, the end of the connecting column facing the fixing column is tapered, and the cross-section of the fixing column is rectangular.

[0012] Furthermore, a plurality of fixed columns are provided, and the plurality of fixed columns are arranged in a circular array with the axis of the connecting column as the center.

[0013] Furthermore, the vertical cross-section of the embedded plate and the sealing cavity is inverted T-shaped.

[0014] Furthermore, a plurality of buffer springs are provided in the sealed cavity, and the plurality of buffer springs are provided at equal intervals in the sealed cavity.

[0015] The beneficial effects of this application are as follows: the rectangular frame structure of the mounting bracket is fixed to the middle section of the cross frame to form a rigid frame that disperses impact, effectively avoiding deformation or damage to the battery box caused by local stress. The buffer springs equidistantly arranged in the sealed cavity of the buffer plate absorb impact in multiple directions through uniformly distributed elastic deformation, avoiding spring failure caused by single-point stress, improving energy absorption efficiency and device reliability. The bottom installation design of the flexible buffer air cushion provides progressive buffering during collision, reducing the instantaneous impact on the bottom of the battery box and protecting the delicate internal structure of the battery.

[0016] During installation, the forward-rotating embedded disc drives the lead screw to rotate, which engages with the threaded top pressure column. This pushes the fixed columns arranged in a ring array to expand outward and compresses the return spring. The rectangular structure of the long oval cross-section of the fixed column forms a stable engagement with the inner wall of the battery box mounting hole. Compared with traditional bolt fixing, this method has stronger resistance to vibration and loosening, making it particularly suitable for the high-frequency vibration environment of new energy vehicles. Furthermore, it allows for quick disassembly and replacement of the guardrail device after use, further improving the overall practicality of the device. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0018] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0019] In the attached diagram:

[0020] Figure 1 This is a schematic diagram of the structure of this application;

[0021] Figure 2 This is a longitudinal sectional view of the mounting bracket corresponding to the buffer plate in this application;

[0022] Figure 3 This is a longitudinal sectional view of the fixing component of this application;

[0023] Figure 4 For this application Figure 1 A magnified structural diagram of point A in the middle.

[0024] Figure label:

[0025] 1. Mounting bracket; 2. Horizontal frame; 3. Buffer plate; 31. Embedding plate; 32. Buffer spring; 4. Flexible buffer air cushion; 5. Fixing component; 6. Connecting column; 7. Top pressure column; 8. Screw rod; 9. Embedding plate; 10. Fixing column; 11. Sleeve plate; 12. Return spring. Detailed Implementation

[0026] The following is a detailed description of a flexible guardrail device for new energy vehicles provided in this application, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this application.

[0027] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0028] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0029] The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] Reference Figure 1-4 As shown, this utility model provides a flexible guardrail device for new energy vehicles, including a mounting frame 1, which has a rectangular frame structure. A crossbar 2 is fixed in the middle section of the mounting frame 1. A buffer plate 3 is installed below the mounting frame 1. A sealing cavity is opened inside the buffer plate 3. An embedded plate 31 is protruding from the bottom of the mounting frame 1 and is embedded in the sealing cavity. The vertical cross section of the embedded plate 31 and the sealing cavity is inverted T-shaped. A buffer spring 32 is installed in the sealing cavity to assist the embedded plate 31 in pressing. Several buffer springs 32 are arranged in the sealing cavity, and several buffer springs 32 are arranged at equal intervals in the sealing cavity. A flexible buffer air cushion 4 is installed at the bottom of the buffer plate 3. The working principle of the flexible buffer air cushion 4 is the same as that of the existing automotive airbag.

[0031] The rectangular frame structure of the mounting bracket 1 is fixed to the middle section of the crossbeam 2, forming a rigid frame that disperses impacts. This effectively prevents deformation or damage to the battery box caused by localized stress. The buffer springs 32, which are equidistantly arranged in the sealed cavity of the buffer plate 3, absorb impacts in multiple directions through uniformly distributed elastic deformation, avoiding spring failure caused by single-point stress, and improving energy absorption efficiency and device reliability. The bottom mounting design of the flexible buffer air cushion 4 provides progressive buffering during collisions, reducing the instantaneous impact on the bottom of the battery box and protecting the delicate internal structure of the battery.

[0032] The mounting bracket 1 is equipped with four fixing components 5 at its top corners. The mounting bracket 2 is also equipped with fixing components 5 symmetrically. The fixing components 5 are installed in the mounting holes at the bottom of the battery box. The fixing components 5 include connecting posts 6. The connecting posts 6 are fixed at the top of the mounting bracket 1 and the mounting bracket 2 respectively. The connecting posts 6 have cavities inside. A top pressure post 7 is slidably arranged in the cavity. A squeezing chamber is opened near the bottom outer edge of the connecting posts 6. A fixing post 10 is slidably arranged in the squeezing chamber. A sleeve plate 11 is fixedly fitted on the fixing post 10. A return spring 12 for the sleeve plate 11 to press is installed in the squeezing chamber. A sleeve plate 9 is rotatably embedded at the bottom of the connecting posts 6. A screw rod 8 is fixed at the top of the sleeve plate 9. The screw rod 8 is installed through the top pressure post 7. The top pressure post 7 and the screw rod 8 are threaded together.

[0033] During installation, the forward-rotating mounting plate 9 drives the lead screw 8 to rotate via the fixed component 5. The lead screw 8 engages with the top pressure column 7, pushing the fixed columns 10 arranged in a ring array to expand outward and compressing the return spring 12. The rectangular structure of the long oval cross-section of the fixed column 10 forms a stable snap-fit ​​with the inner wall of the battery box mounting hole. Compared with traditional bolt fixing, it has stronger anti-vibration and loosening ability, and is especially suitable for the high-frequency vibration environment of new energy vehicles. At the same time, it can be quickly disassembled and replaced after use, further improving the overall practicality of the device.

[0034] The fixed column 10 is generally oblong, the end of the connecting column 6 facing the fixed column 10 is conical, and the cross-section of the fixed column 10 is rectangular. The rectangular cross-section of the fixed column 10 ensures that the fixed column 10 can only slide along the cavity during adjustment and will not rotate during the adjustment process.

[0035] Working principle: This flexible guardrail device for new energy vehicles uses a mounting frame 1 as the main frame. Its rectangular frame structure and the fixed crossbeam 2 in the middle section together form a high-rigidity support system. The buffer plate 3 is fitted with the mounting frame 1 through the inverted T-shaped embedded plate 31 in the bottom sealed cavity. The buffer springs 32, which are equidistantly arranged in the sealed cavity, absorb the impact energy through elastic deformation during the collision, reducing the direct impact on the battery box. The flexible buffer air cushion 4 is located at the bottom of the buffer plate 3. When the bottom of the battery receives a rigid collision, the flexible buffer air cushion 4 is rapidly inflated during the collision process. After being inflated, it collides with the expansion area to further compress and deform, forming a secondary buffer layer to protect the bottom structure of the battery box.

[0036] The fixing component 5 is fixed to the top of the mounting bracket 1 and the crossbeam 2 respectively via the connecting column 6. During installation, the forward rotating embedding plate 9 drives the lead screw 8 to rotate. The lead screw 8 is threadedly engaged with the top pressure column 7, pushing the fixed columns 10 arranged in a ring array to expand outward and causing the return spring 12 to be compressed. The rectangular structure of the long oval cross section of the fixed column 10 forms a stable snap-fit ​​with the inner wall of the battery box mounting hole. The reverse rotating embedding plate 9, under the action of the compression force of the return spring 12, provides a rebound force during disassembly, causing the fixed column 10 to retract, thus achieving quick disassembly and assembly.

[0037] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

[0038] It should be noted that this application covers any alternatives, modifications, equivalent methods, and solutions made within the spirit and scope of this application. To provide the public with a thorough understanding of this application, specific details are described in detail in the preferred embodiments, while those skilled in the art can fully understand this application without these details. Furthermore, to avoid unnecessary confusion regarding the substance of this application, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0039] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A flexible guardrail device for a new energy vehicle, comprising: The mounting frame (1) is characterized in that: the mounting frame (1) has a rectangular frame structure, a crossbeam (2) is fixed in the middle section of the mounting frame (1), a buffer plate (3) is installed below the mounting frame (1), a sealed cavity is opened inside the buffer plate (3), an embedded plate (31) is protruding at the bottom of the mounting frame (1), the embedded plate (31) is embedded in the sealed cavity, and a buffer spring (32) is installed in the sealed cavity to assist the embedded plate (31) in pressing; a flexible buffer air cushion (4) is installed at the bottom of the buffer plate (3), and a fixing component (5) is installed at each of the four corners of the top of the mounting frame (1), and a fixing component (5) is symmetrically installed on the crossbeam (2), and the fixing component (5) is installed in the mounting hole at the bottom of the battery box.

2. The flexible guardrail device for new energy vehicles according to claim 1, characterized in that: The fixing component (5) includes a connecting column (6), which is fixed at the top of the mounting frame (1) and the cross frame (2). The connecting column (6) has a cavity inside, and a top pressure column (7) is slidably arranged in the cavity. The connecting column (6) has a squeezing cavity near the bottom outer edge, and a fixing column (10) is slidably arranged in the squeezing cavity. An embedding plate (9) is rotatably embedded at the bottom of the connecting column (6), and a screw rod (8) is fixed at the top of the embedding plate (9). The screw rod (8) is threaded onto the top pressure column (7), and the top pressure column (7) and the screw rod (8) are threaded together.

3. The flexible guardrail device for new energy vehicles according to claim 2, characterized in that: A sleeve plate (11) is fixed on the fixed column (10), and a return spring (12) for the auxiliary sleeve plate (11) to press is installed in the extrusion cavity.

4. The flexible guardrail device for new energy vehicles according to claim 3, characterized in that: The fixing column (10) is generally oblong, the end of the connecting column (6) facing the fixing column (10) is conical, and the cross-section of the fixing column (10) is rectangular.

5. The flexible guardrail device for new energy vehicles according to claim 4, characterized in that: The fixed column (10) is provided in a plurality of such columns, and the plurality of fixed columns (10) are arranged in a circular array with the axis of the connecting column (6) as the center.

6. The flexible guardrail device for new energy vehicles according to claim 1, characterized in that: The vertical cross-section of the embedded plate (31) and the sealing cavity is inverted T-shaped.

7. The flexible guardrail device for new energy vehicles according to claim 6, characterized in that: Several buffer springs (32) are provided in the sealed cavity, and several buffer springs (32) are provided at equal intervals in the sealed cavity.

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