Search

CN-121989517-A - Novel composite board for grid core vehicle

CN121989517ACN 121989517 ACN121989517 ACN 121989517ACN-121989517-A

Abstract

The invention discloses a novel composite board for a grid-core vehicle, and belongs to the technical field of automotive interior parts. The invention aims to solve the problem that the existing automobile floor is difficult to simultaneously consider light weight, structural strength and sound insulation purification function. The technical scheme is characterized in that the honeycomb core comprises a first aluminum plate, a second aluminum plate and a honeycomb core formed by clamping a plurality of groups of first battens and a plurality of groups of second battens, wherein the lower wall of the first batten is provided with a plurality of first clamping grooves, the upper wall of the second batten is provided with a plurality of second clamping grooves, the first clamping grooves and the second clamping grooves are mutually clamped to form a grid-shaped honeycomb core, a plurality of cavities are formed inside the honeycomb core, and soundproof cotton, activated carbon particles or a combination of two layers of soundproof cotton and activated carbon clamps can be selectively filled in the cavities. The invention has the main beneficial effects of light weight, high strength, simple process, integration of multiple functions such as sound insulation, air purification and the like according to requirements, and remarkable improvement of the comprehensive performance of the automotive interior floor.

Inventors

  • ZHANG KUI
  • XIONG WENQI
  • ZHANG WUPING

Assignees

  • 湖州摩森木业有限公司

Dates

Publication Date
20260508
Application Date
20260310

Claims (7)

  1. 1. A novel composite board for a grid core vehicle, which is characterized by comprising: The honeycomb core comprises a first aluminum plate (1), a second aluminum plate (2) and a honeycomb core (3); the first aluminum plate (1) is fixedly connected to the upper surface of the honeycomb core (3), and the second aluminum plate (2) is fixedly connected to the lower surface of the honeycomb core (3); The honeycomb core (3) is formed by clamping a plurality of groups of first battens (31) and a plurality of groups of second battens (32); the first wood strips (31) are parallel to each other, and the intervals between two adjacent wood strips are equal; The second wood strips (32) are parallel to each other, and the intervals between two adjacent wood strips are equal; The top projection of the second wood strip (32) is vertical to the top projection of the first wood strip (31); the lower wall of the first batten (31) is provided with a plurality of first clamping grooves (311) which are distributed at equal intervals along the length direction; the upper wall of the second wood strip (32) is provided with a plurality of second clamping grooves (321) which are distributed at equal intervals along the length direction; The first clamping groove (311) is clamped with the second clamping groove (321) so that the first batten (31) and the second batten (32) form a grid structure, and the thickness of the honeycomb core (3) is consistent with that of the first batten (31) or the second batten (32).
  2. 2. The novel grid-core automotive composite board of claim 1, wherein the depth of the first clamping groove (311) is half of the thickness of the first batten (31), the depth of the second clamping groove (321) is half of the thickness of the second batten (32), the width of an opening of the first clamping groove (311) along the length direction of the first batten (31) is consistent with the width of the second batten (32), and the width of an opening of the second clamping groove (321) along the length direction of the second batten (32) is consistent with the width of the first batten (31).
  3. 3. The novel mesh core automotive composite board according to claim 1, wherein after the first batten (31) is clamped with the second batten (32), a plurality of cavities (33) separated by the first batten (31) and the second batten (32) are formed inside the honeycomb core (3).
  4. 4. A novel mesh core automotive composite panel according to claim 3, characterized in that the cavity (33) is filled with soundproof cotton (4).
  5. 5. A new type of mesh core vehicle composite board according to claim 3, characterized in that the cavities (33) are filled with activated carbon particles (5).
  6. 6. A novel mesh core automotive composite panel according to claim 3, characterized in that the cavity (33) is filled with two layers of soundproof cotton, a first soundproof cotton layer (41) and a second soundproof cotton layer (42), respectively, and activated carbon particles (5) are filled between the two layers of soundproof cotton.
  7. 7. A novel mesh core automotive composite panel according to any one of claims 1 to 6, wherein the first aluminum plate (1) and the second aluminum plate (2) are fixedly connected to the upper and lower surfaces of the honeycomb core (3) by an adhesive or hot-press composite process.

Description

Novel composite board for grid core vehicle Technical Field The invention relates to the technical field of automotive upholstery, in particular to a novel composite board for a grid-core automobile. Background Automotive interior floors are an important component of automotive interior systems whose performance directly affects the comfort, silence, and air quality of the riding space. At present, the field of automotive interior floors generally adopts a multi-layer composite board structure, and the bearing strength, the sound insulation, the noise reduction and the environmental protection performance are considered while pursuing light weight. With the continuous improvement of the requirements of consumers on the environment in the vehicle, the composite floor with the integrated structure stability and functions has become an important research and development direction in the field. At present, the closest prior art to the technical proposal mainly comprises the following two types of proposals: One type of prior art proposal adopts a multi-layer solid wood board or density board composite structure, and the automobile interior decorative floor is manufactured by compounding a decorative layer and a bottom composite moisture-proof layer on the surface of the board. The technical scheme has the defects that (1) the structure is single in function, the inside of the plate is of a solid structure, the sound insulation or air purification function cannot be integrated, the sound insulation performance of the plate is limited, the weight of the plate is large, the development requirement of light weight of an automobile is difficult to meet, the environment friendliness is improved, and the problem of release of volatile organic compounds possibly exists in the production and use processes of the partial density plate. Another prior art solution uses a metal honeycomb plate structure, i.e. a metal honeycomb core is sandwiched between two metal plates. The scheme has the defects that (1) the sound insulation performance is insufficient, a sound transmission channel is easy to form in a cavity of the metal honeycomb core, a cavity resonance effect is generated, the sound insulation effect is poor, (2) the core material connecting process is complex, the connection between the metal honeycomb core and the panel usually needs brazing or special structural adhesive, the process cost is high, and (3) the function expansibility is poor, and the closed cell structure of the metal honeycomb core is difficult to carry out secondary function filling or modification. In summary, the existing automotive interior floor generally has the problems that the structural function is single, the light weight and the sound insulation and purification performance are difficult to simultaneously achieve, the core material forming process is complex, and the function expansion is limited. Therefore, how to provide a composite floor board with stable structure, light weight and high strength, and capable of integrating sound insulation and air purification functions is a technical problem to be solved in the field. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a novel composite board for a grid-core vehicle, and solves the problems in the prior art. In order to achieve the purpose, the novel composite board for the grid-core vehicle is achieved through the following technical scheme. Aiming at the problems of heavy weight and single function caused by the common adoption of solid wood or density board composite structures in the existing automobile floor, the technical scheme of the invention adopts a structure that an upper aluminum plate and a lower aluminum plate are clamped with a wood honeycomb core. The first batten and the second batten are clamped and connected mutually vertically through prefabricated clamping grooves to form a grid-shaped honeycomb core with uniform thickness. The structure can form a stable bearing frame without complex connecting process, the upper aluminum plate and the lower aluminum plate are high in overall rigidity after being compounded, the structural strength of the floor is ensured while the light weight is realized, and the contradiction that the traditional floor is sacrificed in light weight performance for pursuing strength is solved. Aiming at the problems that the existing metal honeycomb plate has poor sound insulation performance and the cavities are easy to generate resonance noise, the technical scheme of the invention utilizes a plurality of cavities which are naturally formed by the interval arrangement of the first battens and the second battens, and the cavities can be filled with sound insulation cotton. The soundproof cotton can effectively absorb sound wave energy, blocks the propagation path of sound in the cavity, remarkably improves the soundproof and noise-reducing performance of the floor, and solves the problems that the metal ho