CN-122009070-A - Lightweight heat dissipation buffer bumper

CN122009070ACN 122009070 ACN122009070 ACN 122009070ACN-122009070-A

Abstract

The invention discloses a lightweight heat dissipation buffer bumper which comprises a breathable bumper body, wherein a primary buffer box is arranged on the back surface of the bumper body, a plurality of honeycomb buffer layers are filled in the box, the back surface of the primary buffer box is connected with a secondary buffer mechanism through a steel plate with holes, the other end of the secondary mechanism is connected with a vehicle body connecting plate, a sliding cavity is formed between the vehicle body connecting plate and the primary buffer box in a surrounding mode, ventilation holes are formed in the plate, three-stage buffer mechanisms penetrating through the steel plate with holes are arranged on two sides of the primary buffer box, a sliding blocking mechanism driven by the three-stage buffer mechanism is arranged in the sliding cavity and can seal the ventilation holes in collision, and the steel plate with holes is further provided with reverse ventilation holes and a telescopic ventilation pipe which are communicated with a strip-shaped air bag on the front side of the bumper body. The invention realizes high-efficiency buffering and light weight through three-level buffering and energy absorption in a synergistic way, can automatically close the vent holes during collision to prevent fragments from being inhaled, simultaneously utilizes air pressure to expand the strip-shaped air bags, enhances the protection of pedestrians, and has the heat dissipation and flow guide functions in a normal state.

Inventors

JIANG YUNGANG
JIANG ZHIJIN
PAN ZHIZHONG
TANG LINKUN
SHEN HUAZHENG
XU BO

Assignees

江苏菱盛汽配科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260209

Claims (6)

1. The light-weight heat dissipation buffer bumper comprises a bumper body (1), wherein the bumper body (1) is indirectly or directly connected with a vehicle body connecting plate (10) through the elasticity of each level of buffer structure, and is characterized in that a first-level buffer box (3) is arranged on the back of the bumper body (1), a plurality of layers of honeycomb buffer layers (4) are filled in the first-level buffer box (3), a perforated steel plate (5) is fixedly arranged on one side, far away from the bumper body (1), of the first-level buffer box (3), one end, far away from the first-level buffer box (3), of the perforated steel plate (5) is fixedly provided with a second-level buffer mechanism (7), the other end of the second-level buffer mechanism (7) is fixedly connected with the vehicle body connecting plate (10), a sliding cavity (20) is arranged on the periphery between the vehicle body connecting plate (10) and the perforated steel plate (5), two through vent holes (18) are formed in the vehicle body connecting plate (10), two through vent holes (3) are fixedly arranged on one side, two ends of the first-level buffer mechanism (3) are fixedly connected with the vehicle body connecting plate (11) and the three-level buffer mechanism (11) respectively, the sliding cavity (20) is internally provided with a sliding blocking mechanism, and the sliding blocking mechanism can block the vent hole (18) when the lever body (1) moves towards the vehicle body connecting plate (10).
2. The light-weight heat dissipation buffer bumper according to claim 1, wherein the perforated steel plate (5) is provided with a through positive vent hole (21) and a through reverse vent hole (22), the positive vent hole (21) is distributed in an overlapping area of the primary buffer box (3), the reverse vent hole (22) is distributed at two sides of the overlapping area, the front side of the reverse vent hole (22) is connected with a telescopic vent pipe (6), the other end of the telescopic vent pipe (6) is communicated with a bumper body (1), the front side of the bumper body (1) is provided with a strip-shaped air bag (2), and the inside of the strip-shaped air bag (2) is connected with a gas phase of the telescopic vent pipe (6).
3. The light-weight heat dissipation buffer bumper according to claim 1, wherein the sliding plugging mechanism comprises a connecting rod (14), three-stage buffer mechanisms (11) and a sliding block (19) are hinged to two ends of the connecting rod (14) respectively, a pair of sliding grooves (15) are formed in the vehicle body connecting plate (10) at positions corresponding to the vent holes (18) and close to one side of the first-stage buffer box (3), and the sliding block (19) is connected inside the sliding grooves (15) in a sliding mode.
4. The light-weight heat dissipation buffer bumper according to claim 3, wherein the inner side surface of the sliding groove (15) is provided with a guide groove (16), the side surface of the sliding block (19) is provided with a raised line (17), and the raised line (17) is matched with the shape of the guide groove (16).
5. A lightweight heat dissipation and cushioning bumper as set forth in claim 1, characterized in that said secondary cushioning mechanism (7) comprises a first telescoping rod (8) and a first spring (9) and said tertiary cushioning mechanism (11) comprises a second spring (12) and a second telescoping rod (13).
6. The light-weight heat dissipation buffer bumper as set forth in claim 1, wherein the honeycomb buffer layer (4) is composed of at least two layers of hollow hexagonal honeycomb units staggered with each other, and hexagonal cavities of each layer of honeycomb units are arranged corresponding to corner points of adjacent honeycomb layers to form an interlayer dislocation structure.

Description

Lightweight heat dissipation buffer bumper Technical Field The invention relates to the field of bumpers, in particular to a lightweight heat dissipation buffer bumper. Background The automobile bumper can absorb and slow down external impact force, protect the automobile body and improve the aerodynamic characteristics of the automobile, and belongs to a safety piece. When the bumper is impacted, the energy of the impact is absorbed, and plastic deformation is generated at the same time, so that the energy transmission is reduced. A plurality of heat management components such as a driving system radiator, an air conditioner condenser, a power battery cooler and the like are arranged in a front cabin of a modern automobile, especially a new energy automobile type, and the heat dissipation efficiency of the heat management components directly influences the performance and the safety of the automobile. The traditional bumpers are mostly closed or are only provided with simple fixed grids, and the ventilation paths and the flow are fixed. In a low-speed running or idling state of the vehicle, enough airflow cannot be effectively guided to pass through the radiator, so that the heat radiation efficiency is easily reduced, and the stability of the system is affected. Meanwhile, existing designs cannot manage airflow into the engine compartment through the bumper in the event of a frontal collision. Broken radiator core fragments are easily wrapped and sucked into the cabin by high-speed air flow, secondary damage is caused to wire harnesses, pipelines, electronic elements and the like, and potential safety hazards exist. Disclosure of Invention The invention aims to solve the problems in the background art and provides a light-weight heat dissipation buffer bumper. In order to achieve the above purpose, the present invention adopts the following technical scheme: The utility model provides a lightweight heat dissipation buffer bumper, includes the thick stick body, the thick stick body has the automobile body connecting plate through the indirect or lug connection of buffer structure elasticity at every level, the thick stick body is ventilative structure, the back of the thick stick body is equipped with one-level buffer box, the inside multilayer honeycomb buffer layer that fills of one-level buffer box, one side that the thick stick body was kept away from to one-level buffer box is fixed to be equipped with foraminiferous steel sheet, the one side that the one-level buffer box was kept away from to foraminiferous steel sheet is fixed to be equipped with second grade buffer mechanism's one end, second grade buffer mechanism's the other end and automobile body connecting plate fixed connection, the periphery between automobile body connecting plate and the foraminiferous steel sheet is equipped with the sliding chamber, the periphery surface and the sliding chamber internal surface looks adaptation of foraminiferous steel sheet, the air vent that two link up has been seted up to the automobile body connecting plate, the both sides of one-level buffer box still are equipped with tertiary buffer mechanism, tertiary buffer mechanism both ends atress respectively with the back and the automobile body connecting plate fixed connection of thick stick body, and tertiary buffer mechanism activity runs through foraminiferous steel sheet the inside sliding block mechanism that is equipped with the sliding block mechanism, sliding chamber can the automobile body when the automobile body is to the connecting plate to the automobile body shutoff. In the light-weight heat dissipation buffer bumper, the perforated steel plate is provided with the through positive air holes and the reverse air holes, the positive air holes are distributed in the overlapping area of the primary buffer box, the reverse air holes are distributed in the positions of two sides of the overlapping area, the front side of the reverse air holes is connected with the telescopic air pipe, the other end of the telescopic air pipe is communicated with the bumper body in a through mode, the front side of the bumper body is provided with the strip-shaped air bag, and the inside of the strip-shaped air bag is connected with the telescopic air pipe in a gas phase mode. In the light-weight heat dissipation buffer bumper, the sliding plugging mechanism comprises a connecting rod, three-stage buffer mechanisms and a sliding block are hinged to two ends of the connecting rod respectively, a pair of sliding grooves are formed in one side, close to the first-stage buffer box, of the vehicle body connecting plate, and the sliding grooves are connected inside the sliding grooves in a sliding mode. In the light-weight heat dissipation buffer bumper, the inner side surface of the sliding groove is provided with the guide groove, the side surface of the sliding block is provided with the convex strip, and the convex strip is matched with the shape of the guide groove.