CN215372007U

CN215372007U - Perforated foamed aluminum plate

Info

Publication number: CN215372007U
Application number: CN202121880798.5U
Authority: CN
Inventors: 李功毕
Original assignee: Individual
Current assignee: Li Mingjin Foshan New Material Technology Co ltd
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2021-12-31
Anticipated expiration: 2031-08-11

Abstract

The utility model provides a perforated foamed aluminum plate, which comprises a plate body, wherein a plurality of silencing holes are formed in the end face of the plate body, second fixing plates are connected to the outer walls of the upper side and the lower side of the plate body, first fixing plates are connected to the outer walls of the left side and the right side of the plate body, second protection plates are connected to the outer walls of the second fixing plates, first protection plates are connected to the outer walls of the first fixing plates, inclined platforms are arranged on the two sides of each of the first protection plates and the second protection plates, and the first protection plates and the second protection plates are in contact with each other. Thereby strengthening the noise reduction performance of the plate body.

Description

Perforated foamed aluminum plate

Technical Field

The utility model mainly relates to the technical field of foamed aluminum plates, in particular to a perforated foamed aluminum plate.

Background

Perforated aluminum foams have received increasing attention in the acoustic field due to their porous structure. When the perforated foamed aluminum is not treated, the sound absorption mechanism is basically viscous sound absorption and heat conduction sound absorption, and in this case, although partial sound absorption function is provided, compared with other materials, the sound absorption performance is not much superior. In order to improve the performance of the closed-cell foamed aluminum sound absorption structure, the design of an acoustic structure needs to be carried out on the foamed aluminum. For example, application No. 201510381772.9 discloses a perforated aluminum foam sheet and a method for making the same. The perforated foamed aluminum plate is characterized in that semi-permeable holes which are different in direction and inclined to the surface of the foamed aluminum plate are arranged on one surface of the foamed aluminum plate, or semi-through holes are respectively arranged on two surfaces of the foamed aluminum plate, or full-through holes penetrating through the foamed aluminum plate are arranged. The plate is prepared by adopting high-speed sand blasting to form high-speed spray beams, spraying the spray materials on the surface of foamed aluminum to be treated, enabling the grinding materials to impact and grind the foamed aluminum plate, forming holes on the foamed aluminum plate, and obtaining the plates with different perforation distribution rates, perforation diameters and perforation forms by selecting the structure of a spray head, the number of carborundum meshes or the sand blasting pressure. The structure can further improve the sound absorption performance of the closed-cell foamed aluminum material, can ensure that the foamed aluminum plate obtains good mechanical performance, has high processing efficiency, improves the appearance quality of a workpiece, and is mainly used as a sound absorption material. But the protection is poor, and the plate body is easy to damage due to friction with other objects during use.

SUMMERY OF THE UTILITY MODEL

The utility model mainly provides a perforated foamed aluminum plate, which is used for solving the technical problems in the background technology.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

a perforated foamed aluminum plate comprises a plate body, wherein a plurality of silencing holes are formed in the end face of the plate body, the outer walls of the upper side and the lower side of the plate body are respectively connected with a second fixing plate, the outer walls of the left side and the right side of the plate body are respectively connected with a first fixing plate, the outer wall of the second fixing plate is connected with a second protection plate, the outer wall of the first fixing plate is connected with a first protection plate, the two sides of the first protection plate and the two sides of the second protection plate are respectively provided with an inclined platform, the first protection plate is in contact with the second protection plate, the first protection plate and the second protection plate are conveniently connected on the plate body through the first fixing plate and the second fixing plate arranged on the plate body, the first protection plate and the second protection plate are matched and connected through the inclined platforms arranged at the two ends of the first protection plate and the second protection plate, therefore seamless connection is realized, further, the cross sections of the silencing holes are in a zigzag shape, thereby strengthening the noise reduction performance of the plate body.

Furthermore, the cross section of the silencing hole is in a zigzag shape, and the design is convenient for enhancing the silencing effect of the plate body.

Further, first guard plate and second guard plate outer wall all are equipped with recess and spacing groove, the spacing groove is located recess below and communicates, and this design is convenient for first guard plate and second guard plate and slides on first fixed plate and second fixed plate.

Further, first fixed plate and second fixed plate all include diaphragm and riser, the diaphragm lower extreme is connected with the riser, riser and this external wall connection of panel, this design is convenient for to connecting first guard plate and second guard plate.

Furthermore, the transverse plate is matched with the limiting groove, the vertical plate is matched with the groove, and the first protection plate and the second protection plate are convenient to limit through the design.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the first fixing plate and the second fixing plate are arranged on the plate body, so that the first protection plate and the second protection plate can be conveniently connected on the plate body, the first protection plate and the second protection plate are matched and connected through the inclined platforms arranged at the two ends of the first protection plate and the second protection plate, and therefore, seamless connection is realized, and further, the cross section of the silencing hole is zigzag, so that the silencing performance of the plate body is enhanced.

The present invention will be explained in detail below with reference to the drawings and specific embodiments.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic perspective view of the plate body according to the present invention;

FIG. 3 is a schematic cross-sectional view of the plate body according to the present invention;

FIG. 4 is a perspective view of a first fender panel according to the present invention;

fig. 5 is a schematic perspective view of a second fixing plate according to the present invention.

In the figure: 1. a plate body; 2. a first guard plate; 3. a second guard plate; 11. a silencing hole; 12. a first fixing plate; 13. a second fixing plate; 21. a groove; 22. a limiting groove; 131. a transverse plate; 132. a riser.

Detailed Description

In order to facilitate an understanding of the utility model, the utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the utility model are shown, but which may be embodied in different forms and not limited to the embodiments described herein, but which are provided so as to provide a more thorough and complete disclosure of the utility model.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the knowledge of the terms used herein in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Please refer to fig. 1-5 in greater detail, a perforated foamed aluminum sheet comprises a sheet body 1, wherein a plurality of muffling holes 11 are formed in the end surface of the sheet body 1, second fixing plates 13 are connected to the outer walls of the upper and lower sides of the sheet body 1, first fixing plates 12 are connected to the outer walls of the left and right sides of the sheet body 1, second protection plates 3 are connected to the outer walls of the second fixing plates 13, first protection plates 2 are connected to the outer walls of the first fixing plates 12, ramps are formed on the two sides of the first protection plates 2 and the second protection plates 3, the first protection plates 2 are in contact with the second protection plates 3, the first protection plates 2 are connected to the sheet body 1 through the first fixing plates 12 and the second protection plates 13 arranged on the sheet body 1, and the first protection plates 2 are in contact with the second protection plates 3 through the ramps formed at the two ends of the first protection plates 2 and the second protection plates 3, thereby realize seamless connection, further, utilize the silencing hole 11 cross-section to be zigzag to strengthen the amortization performance of panel body 1.

Please refer to fig. 1-5, the cross section of the muffling hole 11 is zigzag, the outer walls of the first protection plate 2 and the second protection plate 3 are respectively provided with a groove 21 and a limiting groove 22, the limiting groove 22 is located below the groove 21 and is communicated with the groove, the first fixing plate 12 and the second fixing plate 13 respectively include a transverse plate 131 and a vertical plate 132, the lower end of the transverse plate 131 is connected with the vertical plate 132, the vertical plate 132 is connected with the outer wall of the plate body 1, the transverse plate 131 is engaged with the limiting groove 22, and the vertical plate 132 is engaged with the groove 21, so that the first protection plate 2 and the second protection plate 3 can be conveniently detached and installed.

The specific operation mode of the utility model is as follows:

when the silencer is used, the first fixing plate 12 and the second fixing plate 13 are arranged on the plate body 1, so that the first protection plate 2 and the second protection plate 3 can be conveniently connected to the plate body 1, the first protection plate 2 and the second protection plate 3 are matched and connected through the inclined platforms arranged at the two ends of the first protection plate 2 and the second protection plate 3, seamless connection is achieved, and further, the cross section of the silencing hole 11 is bent, so that the silencing performance of the plate body 1 is enhanced.

The utility model is described above with reference to the accompanying drawings, it is obvious that the utility model is not limited to the above-described embodiments, and it is within the scope of the utility model to adopt such insubstantial modifications of the inventive method concept and solution, or to apply the inventive concept and solution directly to other applications without modification.

Claims

1. The perforated foamed aluminum plate comprises a plate body (1) and is characterized in that a plurality of silencing holes (11) are formed in the end face of the plate body (1), second fixing plates (13) are connected to the outer walls of the upper side and the lower side of the plate body (1), first fixing plates (12) are connected to the outer walls of the left side and the right side of the plate body (1), second protection plates (3) are connected to the outer walls of the second fixing plates (13), first protection plates (2) are connected to the outer walls of the first fixing plates (12), sloping platforms are arranged on the two sides of the first protection plates (2) and the two sides of the second protection plates (3), and the first protection plates (2) are in contact with the second protection plates (3).

2. A perforated aluminium foam sheet according to claim 1, characterised in that the sound-damping holes (11) are meander-shaped in cross-section.

3. The perforated foamed aluminum sheet material according to claim 1, wherein the outer walls of the first protection plate (2) and the second protection plate (3) are provided with grooves (21) and limiting grooves (22), and the limiting grooves (22) are positioned below the grooves (21) and communicated with each other.

4. A perforated aluminum foam panel according to claim 1, wherein the first fixing plate (12) and the second fixing plate (13) each comprise a horizontal plate (131) and a vertical plate (132), the horizontal plate (131) is connected at the lower end thereof to the vertical plate (132), and the vertical plate (132) is connected to the outer wall of the panel body (1).

5. A perforated aluminium foam panel according to claim 4, wherein the cross plate (131) is adapted to engage with the retaining groove (22) and the riser plate (132) is adapted to engage with the recess (21).