In-vehicle bottom plate for new energy vehicle

Abstract

The utility model discloses an in-vehicle bottom plate for a new energy automobile, and relates to the field of new energy automobiles, the in-vehicle bottom plate comprises a lower plate and an upper plate, the upper plate and the lower plate are arranged at intervals except the edge, the edge of the upper plate and the edge of the lower plate are anchored, and a plurality of supporting structural parts are arranged between the upper plate and the lower plate; a lead-containing protective layer is sprayed on the upper surface of the lower plate and is used for blocking electromagnetic radiation from a battery below the chassis; a flame-retardant rubber layer is attached to the upper surface of the upper plate; and at least one flame-retardant sound-absorbing cotton layer is arranged in a spacing position between the upper plate and the lower plate. On the basis of bearing, electromagnetic radiation protection, overheating isolation, flame-retardant safety and noise vibration isolation are improved. The safety of the battery pack can be improved, the battery is prevented from being overheated or on fire, electromagnetic interference can be effectively reduced, stable operation of electronic equipment in a vehicle is guaranteed, and the driving experience of a vehicle owner is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of new energy vehicles, in particular to an interior floor panel for a new energy vehicle. BACKGROUND

[0002] With the rapid development of new energy vehicles, the traditional fuel vehicle floor panel design has been unable to meet the special needs of new energy vehicles. The biggest difference between new energy vehicles and traditional vehicles is that the power source is a battery pack, and the battery pack is usually arranged at the bottom of the vehicle, which requires the floor panel not only to bear the weight of the vehicle, but also to meet more additional requirements. The floor panel structure in the prior art is mostly designed for traditional vehicles, mainly used for supporting the vehicle body, transmitting loads and providing body stability. However, these floor panels do not fully consider the special needs of battery circuits in design, especially the problems of electromagnetic radiation generated by battery operation, the risk of overheating and fire, and the need for noise and vibration isolation.

[0003] Currently, the floor panel of new energy vehicles has adopted heat insulation and flame retardant materials to some extent, but due to the large power of the battery circuit, the electromagnetic radiation generated by the battery often interferes with the in-vehicle electronic equipment, affecting the overall performance of the vehicle. However, most of the existing floor panel materials can only provide basic protection, and cannot effectively block electromagnetic radiation, resulting in unstable system operation, and even may pose a threat to driving safety. In addition, when the battery overheats or catches fire, most of the existing floor panels only provide simple heat insulation measures and are not enough to fully cope with the spread of high temperature or fire, which poses a potential threat to the safety of passengers and on-board equipment. At the same time, the existing floor panels also perform relatively poorly in terms of noise and vibration isolation, and cannot fully isolate the noise generated by the battery pack during operation, affecting the driving experience.

[0004] The reasons for these deficiencies mainly lie in the gap between the design concept of traditional vehicle floor panels and the needs of new energy vehicles. Traditional floor panel design mainly focuses on load bearing and external environmental protection, while ignoring the special needs of battery circuits and internal electronic equipment. This design cannot effectively solve the problems of electromagnetic interference, heat insulation and flame retardation, and noise and vibration in the case of large-scale application of battery packs and circuit systems. Therefore, simply relying on existing technology cannot meet the safety, comfort and reliability requirements of new energy vehicles.

[0005] Developing a completely new floor panel structure for new energy vehicles not only optimizes existing technology, but also comprehensively improves the safety of new energy vehicles. CONTENT OF THE INVENTION

[0006] The purpose of the present application is to at least overcome one of the deficiencies in the prior art, provide a new energy vehicle interior floor, which is improved in electromagnetic radiation protection, overheating isolation, flame retardant safety and noise and vibration isolation. Through the above improvement, not only the safety of the battery pack can be improved to prevent the battery from overheating or on fire, but also the electromagnetic interference can be effectively reduced to ensure the stable operation of the in-vehicle electronic equipment and improve the driving experience of the vehicle owner.

[0007] To achieve the above purpose, the present application discloses a new energy vehicle interior floor, which comprises a lower plate, an upper plate spaced apart from the lower plate except for the edge, wherein the upper plate is anchored with the edge of the lower plate, and a plurality of support structure members are arranged between the upper plate and the lower plate; the upper surface of the lower plate is sprayed with a lead-containing protective layer for blocking electromagnetic radiation from the battery below the chassis; the upper surface of the upper plate is attached with a layer of flame-retardant rubber layer; at least one layer of flame-retardant sound-absorbing cotton layer is arranged in the interval between the upper plate and the lower plate.

[0008] In some embodiments, the upper plate has a structure position that is concave and used to contact and lock with the lower plate.

[0009] In some embodiments, the upper plate and the lower plate are spaced apart from each other by 3-8mm except for the edge position.

[0010] In some embodiments, the upper surface of the upper plate is sprayed with a layer of insulating rubber layer with a thickness of 1-2mm.

[0011] In some embodiments, the lead-containing protective layer is a lead powder spraying layer.

[0012] In some embodiments, holes are formed on the upper plate and / or the lower plate for connecting with the vehicle body-in-white.

[0013] In some embodiments, the upper surface of the upper plate and / or the lower plate is formed with a concave-convex bending structure to form a structural rib.

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

[0015] 1. Electromagnetic radiation protection: by spraying a lead-containing protective layer on the lower plate, the electromagnetic radiation generated by the battery pack can be effectively blocked, the electromagnetic interference can be reduced, the normal operation of the in-vehicle electronic equipment can be ensured, and the overall performance and safety of the vehicle can be improved.

[0016] 2. Overheating and flame-retardant safety improvement: the surface of the upper plate is attached with a flame-retardant rubber layer, and the flame-retardant sound-absorbing cotton layer is arranged between the upper plate and the lower plate, which can effectively isolate the fire source when the battery overheats or catches fire, prevent the spread of fire, and enhance the protection function of the floor in emergency situations.

[0017] 3. Noise and vibration isolation: The bottom plate structure effectively isolates the noise and vibration generated by the battery pack during operation by adding an acoustic cotton layer and a reasonable support structure, improving the driving experience of the vehicle owner, and providing a quieter and more comfortable in-vehicle environment.

[0018] 4. Structure optimization and reliability enhancement: The precise spacing design between the upper plate and the lower plate, as well as the structural ribs formed by the concave-convex bending structure, not only increase the mechanical strength and stability of the bottom plate, but also improve the overall rigidity of the bottom plate, ensuring that the vehicle maintains good durability and safety during long-term use.

[0019] The above-listed benefits are not exhaustive of all advantages. Other potential benefits and detailed technical implementations will be further disclosed in the embodiments or other description sections of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0020] Many aspects of the present disclosure will be better understood in connection with the following detailed description of specific embodiments when read in conjunction with the accompanying drawings, in which the positions, sizes and ranges of structures shown in the drawings are sometimes shown schematically and not necessarily to scale. In the drawings:

[0021] Figure 1 is a structural exploded view of one embodiment of the present disclosure.

[0022] Figure 2 is a partial cross-sectional structural schematic view of one preliminary example of the present disclosure. DETAILED DESCRIPTION

[0023] The present disclosure will be described below with reference to the accompanying drawings, which show several embodiments of the present disclosure. 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 inform those skilled in the art of the scope of protection of the present disclosure. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide more additional embodiments.

[0024] It should be understood that in all the drawings, the same reference numerals represent the same elements. In the drawings, the size of some features can be distorted for the sake of clarity.

[0025] It is to be understood that the words used in the specification are words of description rather than limitation, and that details given are not to be construed as limiting the disclosure. All terms used in the description, unless otherwise defined, are to be interpreted in accordance with their ordinary meaning to one of skill in the art. To the extent that there is any conflict between the definitions provided in the specification and those provided in the claims, the definitions in the claims will control.

[0026] As used in the specification, the singular forms "a," "an," and "the" include plural references unless the context clearly dictates otherwise. As used in the specification, the language "includes" and / or "comprising," as well as variations thereof, means "including but not limited to" and / or "comprising but not limited to" and / or "including one or more of" and / or "comprising one or more of" and / or "containing one or more of," and / or "consisting of" and / or "consisting essentially of." Embodiments

[0027] Referring to the drawings Figure 1 and 2 , a new energy vehicle interior floor is disclosed in this embodiment, which is designed to provide electromagnetic radiation protection, flame retardation, and sound absorption functions to improve the safety and ride comfort of new energy vehicles.

[0028] In terms of specific structure, the interior floor is mainly composed of a lower plate 2 and an upper plate 1, which are connected by edge anchoring, ensuring the stability and durability of the floor structure. Between the upper plate 1 and the lower plate 2, several support structural members 3 are provided, which not only enhance the load-bearing capacity of the floor, but also provide additional rigidity to adapt to various road conditions that the vehicle may encounter during driving.

[0029] The upper surface of the lower plate 2 is sprayed with a lead-containing protective layer 4, which mainly functions to block electromagnetic radiation from the battery below the chassis, protecting passengers inside the vehicle from radiation damage. The lead-containing powder spray layer is selected for its excellent shielding effect, with a thickness controlled between 1-2mm to ensure the protective effect while not excessively increasing the weight of the floor. The design principle of the lead-containing protective layer 4 is based on the high absorption rate of lead material to electromagnetic waves, which can effectively reduce the impact of electromagnetic radiation on passengers.

[0030] The upper surface of the upper plate 1 is attached with a layer of flame-retardant rubber layer 5, which not only has flame-retardant properties, but also can absorb vibrations and noise to some extent, improving ride comfort. The design of the flame-retardant rubber layer 5 takes into account the safety of the vehicle, which can slow down the spread of fire in emergency situations such as fire, providing more escape time for passengers. The thickness of the flame-retardant rubber layer 5 is controlled between 3-8mm to ensure its flame-retardant effect and sound absorption performance.

[0031] In the space between the upper plate 1 and the lower plate 2, at least one layer of fire-retardant sound-absorbing cotton layer 6 is provided. This layer of sound-absorbing cotton layer 6 can effectively absorb the noise generated during vehicle driving, reduce the impact of noise on the vehicle environment, and improve the riding experience. The fire-retardant property of the sound-absorbing cotton layer 6 is also important, which can reduce the risk of the vehicle in emergency situations such as fire.

[0032] In some implementation scenarios, the upper plate 1 is designed with a concave structure, which is used to contact and lock with the lower plate 2, enhancing the overall rigidity and stability of the floor. The spacing distance between the upper plate 1 and the lower plate 2 is controlled within 3-8mm, which ensures the strength of the floor and ensures the lightweight of the floor, which helps to improve the energy efficiency of the vehicle.

[0033] In addition, holes 7 are provided on the upper plate 1 and / or the lower plate 2 for connecting with the vehicle body-in-white. The design of these holes 7 enables the floor to be closely connected with the vehicle body structure, improving the installation convenience of the floor and the overall rigidity of the vehicle. This design also helps to disperse the impact force when the vehicle is in collision, protecting the safety of the passengers inside the vehicle. The surface of the upper plate 1 and / or the lower plate 2 is in a concave-convex bending structure, forming a structural rib. This design increases the strength and anti-deformation ability of the floor, and also helps to disperse the impact force on the floor.

[0034] On the upper surface of the upper plate 1, in addition to the fire-retardant rubber layer 5, an insulating rubber layer 8 is also provided. The thickness of this insulating rubber layer 8 is controlled within 1-2mm to ensure its insulation effect, prevent current leakage, and increase the safety of passengers.

[0035] In actual use scenarios, for example, when passing through a bumpy road, the design of the floor can effectively reduce the vibration amplitude of the vehicle body and improve the riding comfort.

[0036] Although 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 in the protection scope of the present disclosure defined by the claims. The present disclosure is defined by the appended claims, and the equivalents of these claims are also included.

Claims

1. A car floor panel for new energy vehicles, characterized in that: The car inner bottom plate comprises: a lower plate, and an upper plate which is spaced from the lower plate except for the edge, wherein the upper plate is anchored with the edge of the lower plate, and a plurality of support structural members are arranged between the upper plate and the lower plate; the upper surface of the lower plate is sprayed with a lead-containing protective layer for blocking electromagnetic radiation from the battery under the chassis; the upper surface of the upper plate is attached with a layer of flame-retardant rubber layer; at least one layer of flame-retardant sound-absorbing cotton layer is arranged in the spaced position between the upper plate and the lower plate.

2. The interior floor panel for a new energy vehicle as claimed in claim 1, characterized in that: The upper plate has a concave structure for contacting and locking with the lower plate.

3. The interior floor panel for a new energy vehicle as claimed in claim 1, characterized in that: The upper plate and the lower plate are spaced from each other by 3-8mm except for the edge position.

4. The interior floor panel for a new energy vehicle as claimed in claim 1, characterized in that: The upper surface of the upper plate is sprayed with a layer of insulating rubber layer with a thickness of 1-2mm.

5. The interior floor panel for a new energy vehicle as claimed in claim 1, characterized in that: The lead-containing protective layer is a lead-containing powder spraying layer.

6. A new energy vehicle interior floor panel as claimed in claim 1, characterized in that: Holes are formed on the upper plate and / or the lower plate for connecting with the vehicle body-in-white.

7. The interior floor panel for a new energy vehicle as claimed in claim 1, characterized in that: The upper surface of the upper plate and / or the lower plate is in a concave-convex bending structure to form a structural rib.

Images