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CN-224211148-U - Wide temperature resistant EVA front wall protection plate

CN224211148UCN 224211148 UCN224211148 UCN 224211148UCN-224211148-U

Abstract

The utility model discloses a wide-temperature weather-resistant EVA front wall protection plate, which relates to the technical field of automobile body structures and comprises an EVA protection plate body, wherein a wide-temperature weather-resistant coating is coated on the outer side of the EVA protection plate body, the wide-temperature weather-resistant coating comprises a weather-resistant shielding layer, a mechanical reinforcing layer and a substrate bonding layer, the substrate bonding layer is coated on the outer side of the EVA protection plate body, and the mechanical reinforcing layer is coated on the outer side of the substrate bonding layer. In the utility model, the three-layer composite coating builds a wide-temperature weather-proof protection system of 'outer shielding-middle buffering-inner anchoring' through material performance gradient design and cross-layer energy dissipation network and interface chemical bonding reinforcement. In the temperature cycle of-40 ℃ to 80 ℃, each layer not only plays an independent function, but also forms an overall performance gain through ingredient interpenetrating and structure cooperation, thereby prolonging the service life of the front wall protection plate in severe environments such as extremely cold high temperature, rain, snow, salt fog and the like, and being obviously superior to the traditional single-layer coating scheme.

Inventors

  • XIE JIANYU
  • Fu Benteng
  • XIE XIAORONG
  • WANG BINGJUN
  • HU XIMEI

Assignees

  • 江苏赛露达汽车隔音材料有限公司

Dates

Publication Date
20260508
Application Date
20250619

Claims (7)

  1. 1. The wide-temperature weather-resistant EVA front wall protection plate comprises an EVA protection plate body (1) and is characterized in that a wide-temperature weather-resistant coating (2) is coated on the outer side of the EVA protection plate body (1), the wide-temperature weather-resistant coating (2) comprises a weather-resistant shielding layer (21), a mechanical reinforcing layer (22) and a substrate bonding layer (23), the substrate bonding layer (23) is coated on the outer side of the EVA protection plate body (1), the mechanical reinforcing layer (22) is coated on the outer side of the substrate bonding layer (23), the weather-resistant shielding layer (21) is coated on the outer side of the mechanical reinforcing layer (22), and a plurality of buffer bulges (3) are arranged on the outer side of the EVA protection plate body (1).
  2. 2. The wide temperature weather-proof EVA front wall protection plate of claim 1, wherein the buffer bulges (3) are arranged in a honeycomb shape.
  3. 3. The wide temperature weather-proof EVA front wall protection plate of claim 1, wherein the top of the buffer bulge (3) is an arc-shaped surface, a cavity (31) is formed in the buffer bulge (3), and elastic particles are filled in the cavity (31).
  4. 4. The wide-temperature weather-resistant EVA front wall protection plate according to claim 1 is characterized in that reinforcing ribs (11) are fixedly connected to the inner side of the EVA protection plate body (1).
  5. 5. The wide-temperature weather-resistant EVA front wall protection plate of claim 1 is characterized in that the height range of the buffer bulge (3) is 5-10 mm.
  6. 6. The wide-temperature weather-resistant EVA front wall protection plate of claim 1, wherein rectangular holes (12) are formed in two ends of the EVA protection plate body (1), and connecting portions (4) are fixedly welded in the rectangular holes (12).
  7. 7. The EVA front wall protection plate of claim 6, wherein the other end of the connecting part (4) is provided with a switching hole (41).

Description

Wide temperature resistant EVA front wall protection plate Technical Field The utility model relates to the technical field of automobile body structures, in particular to a wide-temperature weather-resistant EVA front wall protection plate. Background The front wall protection plate is an important protection part in an automobile body structure, is usually installed at the front part of a vehicle, is particularly located in a front wall area between an engine cabin and a cockpit, plays a key role in the running process of the vehicle, can block foreign matters such as stones and sediment splashed in the running process from the physical protection layer, avoids the direct impact of key parts such as pipelines and electronic elements in the engine cabin, and reduces abrasion and fault risks. In the aspect of environmental protection, the novel anti-rain water and dust-proof device can effectively resist the invasion of rain water and dust, prevent core components such as an engine, a gearbox and the like from being wetted or corroded, and prolong the service life of the novel anti-rain water and dust-proof device. An automobile front wall protection plate and an automobile disclosed by CN206926726U, which relate to the technical field of automobile body structures. The automobile front wall protection plate comprises an EVA protection plate body, wherein the EVA protection plate body comprises a connecting main plate and a connecting arm integrally formed with the connecting main plate, a preset angle is formed between the connecting main plate and the connecting arm, and a semi-closed cavity is formed by the connecting main plate. The automobile comprises a front coaming, a front longitudinal beam, an A-column lower stand column and an automobile front coaming protection plate, wherein a connecting main board is respectively connected with the root parts of the front coaming and the front longitudinal beam of the automobile, the inner part of a semi-closed cavity faces the front coaming, and a connecting arm is respectively connected with the front coaming and the A-column lower stand column. When the automobile runs on the northern extremely cold road, the hardening embrittlement phenomenon of the protection plate material is caused by low temperature, and the flexibility and impact toughness of the material are greatly reduced. In this state, when a vehicle encounters a stone impact during running or when a vehicle body vibrates due to road surface jolts, the protection plate is difficult to absorb energy through deformation of the protection plate, and the protection plate is prone to cracking and breakage when subjected to the stone impact or the vehicle body vibration, so that the protection function is lost. Disclosure of utility model The utility model aims to solve the problems that the hardening embrittlement phenomenon of a protection plate material occurs at low temperature and the flexibility and impact toughness of the material are greatly reduced, and provides a wide-temperature weather-resistant EVA front wall protection plate. In order to achieve the purpose, the wide-temperature weather-resistant EVA front wall protection plate comprises an EVA protection plate body, wherein a wide-temperature weather-resistant coating is coated on the outer side of the EVA protection plate body, the wide-temperature weather-resistant coating comprises a weather-resistant shielding layer, a mechanical reinforcing layer and a substrate bonding layer, the substrate bonding layer is coated on the outer side of the EVA protection plate body, the mechanical reinforcing layer is coated on the outer side of the substrate bonding layer, the weather-resistant shielding layer is coated on the outer side of the mechanical reinforcing layer, and a plurality of buffer bulges are arranged on the outer side of the EVA protection plate body. Preferably, the buffer protrusions are arranged in a honeycomb shape. Preferably, the top of the buffer bulge is an arc surface, a cavity is formed in the buffer bulge, and elastic particles are filled in the cavity. Preferably, the inner side of the EVA protection plate body is fixedly connected with a reinforcing rib. Preferably, the height range of the buffer bulge is 5-10 mm. Preferably, rectangular holes are formed in two ends of the EVA protection plate body, and connecting portions are fixedly welded in the rectangular holes. Preferably, the other end of the connecting part is provided with a switching hole. Compared with the prior art, the utility model has the advantages and positive effects that: 1. In the utility model, the three-layer composite coating builds a wide-temperature weather-proof protection system of 'outer shielding-middle buffering-inner anchoring' through material performance gradient design and cross-layer energy dissipation network and interface chemical bonding reinforcement. In the temperature cycle of-40 ℃ to 80 ℃, each layer not only plays an independ