CN209312434U - Soldering type slit honeycomb sound absorption structure - Google Patents
Soldering type slit honeycomb sound absorption structure Download PDFInfo
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- CN209312434U CN209312434U CN201821796614.5U CN201821796614U CN209312434U CN 209312434 U CN209312434 U CN 209312434U CN 201821796614 U CN201821796614 U CN 201821796614U CN 209312434 U CN209312434 U CN 209312434U
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- sandwich layer
- absorption structure
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Abstract
The present disclosure proposes a kind of soldering type slit honeycomb sound absorption structures comprising: first panel, second panel and the sandwich layer between the first panel and second panel；Wherein, the first panel is Microfracture plate, and the sandwich layer is honeycomb sandwich layer；It is soldering connection between the first panel, second panel and the honeycomb sandwich layer.Disclosure soldering type slit honeycomb sound absorption structure is arranged by Microfracture plate and sandwich layer, improves structural strength, improves sound absorption effect, is conducive to the use demand for meeting varying environment.
Description
Technical field
This disclosure relates to sqouynd absorption lowering noise technical field more particularly to a kind of soldering type slit honeycomb sound absorption structure.
Background technique
Current existing sound-absorbing material can be roughly divided into two types, and one kind is porous fibre type sound-absorbing material, another kind of to be
Resonance sound-absorbing material.Porous fibre sound-absorbing material is poor in the prevalence of weather resistance, can not adapt to rugged environment and influence the longevity
Life, and porous fibre type sound-absorbing material is to human health.Existing resonance sound-absorbing material is mainly perforated plate or micro- wears
Orifice plate, microperforated panel soundabsorbing construction are the one kind for being proposed and being developed by the famous acoustician's Ma Dayou academician in China the 1970s
Novel sound absorption structure, after microperforated panel absorbs sound theoretical be widely applied, Ma Dayou academician has also been proposed Theory of microslit absorbers,
The sound absorbing mechanism and porous plate acoustic adsorption device of Microfracture plate sound absorption are similar, are all built upon on resonance sound-absorbing basis, in sound wave
Under the action of, the vibration friction by air in opening wall surface makes sound energy loss due to viscous damping and conductive force.
The raising horizontal with machining with the development of science and technology, Microfracture plate has been able to process at present,
Sound absorbing performance is also more excellent, and the frequency band of sound absorption is also wider.Honeycomb sandwich construction connects aspect, at present panel (Microfracture plate) and bee
The connection of nest interlayer mainly uses gluing to connect, i.e., directly by honeycomb panel brush primer, glue film, then with bonding honeycomb core
And be put into hot pressing pipe and carry out solidification connection, however, its intensity, service life and the working environment of permission are largely by glue
The influence of stick performance.
Utility model content
(1) technical problems to be solved
Present disclose provides a kind of soldering type slit honeycomb sound absorption structures, at least partly to solve the above existing technology
Problem.
(2) technical solution
According to one aspect of the disclosure, a kind of soldering type slit honeycomb sound absorption structure is provided, comprising: first panel,
Second panel and the sandwich layer between the first panel and second panel；Wherein, the first panel is Microfracture plate, institute
Stating sandwich layer is honeycomb sandwich layer；It is soldering connection between the first panel, second panel and the honeycomb sandwich layer.
In some embodiments, the slit of multiple rectangles in the first panel with periodic arrangement or arc.
In some embodiments, the second panel is perforated plate.
In some embodiments, have in the second panel in square, triangle periodic arrangement multiple round holes.
In some embodiments, the material of the first panel, second panel and sandwich layer is metal.
In some embodiments, the material of the first panel, second panel and sandwich layer is aluminium.
In some embodiments, the honeycomb sandwich layer is hexagon cellular, quadrangle honeycomb or triangle honeycomb sandwich layer.
(3) beneficial effect
It can be seen from the above technical proposal that a kind of soldering type slit honeycomb sound absorption structure of the disclosure at least has and following has
One of beneficial effect:
(1) soldering type slit honeycomb sound absorption structure is arranged by Microfracture plate and honeycomb sandwich layer, improves sound absorption effect, favorably
In the use demand for meeting varying environment.
(2) Microfracture plate with honeycomb interlayer of existing sound absorption structure, which are connect, is mainly connected using gluing, disclosure honeycomb sandwich layer
It is connect between Microfracture plate and perforated plate for Welding, improves the reliability of sound absorption structure, improved bonding strength, increase
The service life of sound absorption structure.
(3) soldering type slit honeycomb sound absorption structure is formed using all-metal material Welding, does not have fiberfill fibers material,
With high temperature resistant and resistance to air blast impact, be not afraid of moist, pollution-free, dust, easy to clean, resistance be not small, structural strength is high, absorb sound
The advantages that effect is good, nontoxic, can be widely applied to the sound absorption of the varying environment in the fields such as building, ship, high-speed rail.
Detailed description of the invention
Fig. 1 is disclosure soldering type slit honeycomb sound absorption structure schematic diagram.
Fig. 2 is disclosure soldering type slit honeycomb sound absorption structure scheme of installation.
Fig. 3 is the rear panel structure schematic diagram of disclosure soldering type slit honeycomb sound absorption structure.
Fig. 4 is the sound absorption curve graph of disclosure soldering type slit honeycomb sound absorption structure.
<symbol description>
1- front panel, 2- honeycomb sandwich layer, 3- rear panel, 4- soldering type slit honeycomb sound absorption structure, 5- cavity, 6- installation
Face, 11- seam, the hole 31-.
Specific embodiment
For the purposes, technical schemes and advantages of the disclosure are more clearly understood, below in conjunction with specific embodiment, and reference
The disclosure is further described in attached drawing.
In one embodiment, as shown in Figure 1, the soldering type slit honeycomb sound absorption structure includes: front panel, intermediate core
Layer, rear panel connect between front and back panels and intermediate core layer for Welding.By the soldering type slit honeycomb sound absorption structure
After installation a to mounting surface 6 (such as metope), have between the soldering type slit honeycomb sound absorption structure 4 and installation metope 6
One cavity 5, cavity depth D2, core layer thickness D1, as shown in Figure 2.
Existing panel is connect with honeycomb interlayer mainly to be connected using gluing, compared to the prior art, disclosure honeycomb sandwich layer
It is connect between Microfracture plate and perforated plate for Welding, improves the reliability of sound absorption structure, improved bonding strength, increase
The service life of sound absorption structure
Wherein, the front panel is the micro- of slit front panel, thereon multiple rectangles with periodic arrangement or arc
Seam, as shown in Figure 1.
The rear panel is conventional punch plate, has multiple round holes in square periodic arrangement thereon, as shown in Figure 3.
Certainly, multiple round holes in triangle periodic arrangement also be can have on the rear panel.
The present embodiment soldering type slit honeycomb sound absorption structure utilizes Microfracture plate, perforated plate and honeycomb sandwich layer between the two,
Preferable sound absorption effect is realized, as shown in Figure 4.
The front and back panels are metal material, generally using aluminium sheet as raw material；Sandwich layer is aluminum honeycomb or other gold
Belong to core material.The connection of front and back panels and intermediate core layer is the processing of Welding, and mechanical property is much higher than gluing material
Material, can effectively improve the structural strength of resonance sound-absorbing material.
Asking for solder caulking joint can effectively avoid when it carries out welding processing with intermediate core layer using this slit structure
Topic.
The aperture of the rear panel is generally 3~10mm, is 5mm in the present embodiment.
Optionally, the honeycomb sandwich layer is hexagon cellular, quadrangle honeycomb, triangle honeycomb sandwich layer.
Certainly, disclosure soldering type slit honeycomb sound absorption structure is not limited to the design parameter provided in embodiment, ability
For field technique personnel for the parameter of slit front panel, parameter, gap density, plate thickness and cavity depth including slit etc. can roots
It is designed according to actual being customized of noise circumstance.
In addition, disclosure soldering type slit honeycomb sound absorption structure uses all-metal material, there is no fiberfill fibers material, have
High temperature resistant and the impact of resistance to air blast are not afraid of that moist, pollution-free, dust, easy to clean, resistance be not small, structural strength is high, sound absorption effect
The advantages that good, nontoxic, it can be widely applied to the sound absorption of the varying environment in the fields such as building, ship, high-speed rail.
The welding process of disclosure soldering type slit honeycomb sound absorption structure described in detail below.
Welding aluminum honeycomb panel is to weld aluminum honeycomb as core material, and two sides applies Microfracture plate respectively and perforated plate, combination are placed on
In soldering oven, the metal structure material made of disposable Welding in 600 DEG C or so of temperature field.
Heating temperature in welding is higher than solder fusion temperature and is lower than base material melting temperature, i.e., melt solder and base material be not
Molten, the solder melted in the process is filled between two base materials in infiltration under capillary attraction, and is mutually dissolved, is expanded with base material
It dissipates, two base materials is welded as a whole after cooled and solidified.
Wherein, all nodes between aluminium honeycomb core and aluminum deck are that Welding is integral.Honeycomb core internal structure,
Such as hexagonal honeycomb shape internal structure can increase timber intensity by changing internal aluminum honeycomb aluminum foil thickness and side length；It can
Secondary welding, can two dimension or three-dimensionally shaped.
Disclosure soldering type slit honeycomb sound absorption structure has the advantage that node strength height: climbing drum peel strength is general
State is torn greater than 200N.mm/mm, and in honeycomb core；Compression strength is high: the specification of common welding aluminium honeycomb core is 0.2 side
6, compression strength >=5Mpa；Temperature tolerance is strong: welding aluminum honeycomb panel all material is pure aluminum alloy material, and whole process is not added
Any nonmetallic materials, the forming temperature of product is up to 600 DEG C.Thus the temperature tolerance of the material is decided by the heatproof of aluminum alloy materials
Property；Smokeless nontoxic: welding aluminum honeycomb panel is pure aluminum alloy structural material, and no poisonous and harmful substance generates；Light weight: surface density
For 8~10Kg/m2, volume density is 0.4~0.5*103Kg/m3；Environmental protection is recyclable: the honeycomb core of composition welding aluminum honeycomb panel and face
Plate is aluminum alloy materials, also adds or generates, product without poisonous and harmful substance during welding aluminum honeycomb panel production molding
It, can 100% recycling for pure aluminum alloy structure.Thus the material is prepared into production from raw material, then arrives Product recycling,
Entire production chain is pollution-free, recyclable process；Excellent impact resistance: since the excellent node of welding aluminum honeycomb panel is strong
Impact energy, can be decomposed rapidly absorption by degree in being hit, thus impact resistance is significantly larger than similar product.
Particular embodiments described above has carried out further in detail the purpose of the disclosure, technical scheme and beneficial effects
Describe in detail it is bright, it is all it should be understood that be not limited to the disclosure the foregoing is merely the specific embodiment of the disclosure
Within the spirit and principle of the disclosure, any modification, equivalent substitution, improvement and etc. done should be included in the guarantor of the disclosure
Within the scope of shield.
So far, attached drawing is had been combined the embodiment of the present disclosure is described in detail.According to above description, art technology
Personnel should have clear understanding to the disclosure.
It should be noted that in attached drawing or specification text, the implementation for not being painted or describing is affiliated technology
Form known to a person of ordinary skill in the art, is not described in detail in field.In addition, the above-mentioned definition to each element and method is simultaneously
It is not limited only to various specific structures, shape or the mode mentioned in embodiment, those of ordinary skill in the art can carry out letter to it
It singly changes or replaces.
The panel, sandwich layer shape be also not necessarily limited to rectangle, can also be other shapes, such as circle, triangle, six sides
Shape etc..
Particular embodiments described above has carried out further in detail the purpose of the disclosure, technical scheme and beneficial effects
Describe in detail bright, it should be understood that the foregoing is merely the specific embodiment of the disclosure, be not limited to the disclosure, it is all
Within the spirit and principle of the disclosure, any modification, equivalent substitution, improvement and etc. done should be included in the protection of the disclosure
Within the scope of.
Claims (7)
1. a kind of soldering type slit honeycomb sound absorption structure characterized by comprising first panel, second panel and be located at described
Sandwich layer between first panel and second panel；Wherein, the first panel is Microfracture plate, and the sandwich layer is honeycomb sandwich layer；Institute
It states between first panel, second panel and the honeycomb sandwich layer as soldering connection.
2. soldering type slit honeycomb sound absorption structure according to claim 1, which is characterized in that have in the first panel
Multiple rectangles of periodic arrangement or the slit of arc.
3. soldering type slit honeycomb sound absorption structure according to claim 1, which is characterized in that the second panel is perforation
Plate.
4. soldering type slit honeycomb sound absorption structure according to claim 3, which is characterized in that have in the second panel
In square, triangle periodic arrangement multiple round holes.
5. soldering type slit honeycomb sound absorption structure according to claim 1, which is characterized in that the first panel, second
The material of panel and sandwich layer is metal.
6. soldering type slit honeycomb sound absorption structure according to claim 1, which is characterized in that the first panel, second
The material of panel and sandwich layer is aluminium.
7. soldering type slit honeycomb sound absorption structure according to claim 1, which is characterized in that the honeycomb sandwich layer is hexagonal
Honeycomb, quadrangle honeycomb or triangle honeycomb sandwich layer.
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| CN201821796614.5U CN209312434U (en) | 2018-11-01 | 2018-11-01 | Soldering type slit honeycomb sound absorption structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109272980A (en) * | 2018-11-01 | 2019-01-25 | 中国船舶重工集团公司第七〇四研究所 | Soldering type slit honeycomb sound absorption structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109272980A (en) * | 2018-11-01 | 2019-01-25 | 中国船舶重工集团公司第七〇四研究所 | Soldering type slit honeycomb sound absorption structure |
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