CN109640568A - A kind of Novel sealing ring and preparation method thereof for inhaling wave energy with noise reduction - Google Patents
A kind of Novel sealing ring and preparation method thereof for inhaling wave energy with noise reduction Download PDFInfo
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- CN109640568A CN109640568A CN201811452807.3A CN201811452807A CN109640568A CN 109640568 A CN109640568 A CN 109640568A CN 201811452807 A CN201811452807 A CN 201811452807A CN 109640568 A CN109640568 A CN 109640568A
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- sealing ring
- noise reduction
- wave energy
- novel sealing
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/061—Hermetically-sealed casings sealed by a gasket held between a removable cover and a body, e.g. O-ring, packing
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/0015—Gaskets or seals
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Sealing Material Composition (AREA)
Abstract
A kind of Novel sealing ring for inhaling wave energy with noise reduction, is made of rubber layer, electromagnetic wave absorbing layer and foamed cotton layer.The Novel sealing ring of the present invention that wave energy is inhaled with noise reduction, structurally reasonable, wherein electromagnetic wave extra in equipment can be absorbed because of its magnetic conductivity with higher in composite soft magnetic alloy material, can play corresponding decrease of noise functions；The waterproof and dustproof performance of sealing ring can be improved in foamed cotton layer, moreover it is possible to shockproof, antidetonation；The leakproofness of rubber layer is strong, good insulating.Therefore, sealing ring can play the function that noise reduction inhales wave on the basis of meeting its substantially water resistant, dust-proof requirement.
Description
Technical field
The invention belongs to the ancillary technique fields of electronic devices, are related to a kind of with the novel close of noise reduction suction wave energy
Seal and preparation method thereof.
Background technique
In recent years, with the continuous development of electronic technology, went out not by the various electronic equipments of representative also layer of smart phone
Thoroughly, while meeting high performance requirements, also develop to miniaturization and slimming direction.Therefore, highly integrated inside equipment
Change has obtained further development, and higher requirements are also raised in terms of noise reduction, and equipment is needed to have effective noise suppression
Effect, the radiation that unexpected or even unwanted noise can also be inhibited to generate.
In the production process of 3C Product, equipment usually requires have certain waterproof and dustproof performance, thus equipment easily into
The position of water or dust can add sealing ring, such as: the hole Mic of smart phone, earpiece holes, side switch keycap, Sim aperture,
The positions such as Mirco-USB.
However, the waterproof and dustproof sealing ring magnetic conductivity of the prior art is low, and also it also will affect this without decrease of noise functions
The use of a little equipment.
Summary of the invention
Goal of the invention: for overcome the deficiencies in the prior art, the object of the present invention is to provide one kind, and there is noise reduction to inhale wave function
The method that the Novel sealing ring of energy and preparation have the Novel sealing ring of noise reduction suction wave energy.
Technical solution: the present invention provides a kind of Novel sealing rings that wave energy is inhaled with noise reduction, by rubber layer, electromagnetic wave
Absorbed layer and foamed cotton layer composition.The Novel sealing ring of the present invention that wave energy is inhaled with noise reduction, it is structurally reasonable, wherein compound
Electromagnetic wave extra in equipment can be absorbed because of its magnetic conductivity with higher in magnetically soft alloy material, can play corresponding drop
It makes an uproar function；The waterproof and dustproof performance of sealing ring can be improved in foamed cotton layer, moreover it is possible to shockproof, antidetonation；The leakproofness of rubber layer is strong, exhausted
Edge is good.Therefore, sealing ring can play the function that noise reduction inhales wave on the basis of meeting its substantially water resistant, dust-proof requirement.
Further, the above-mentioned Novel sealing ring that wave energy is inhaled with noise reduction, the electromagnetic wave absorbing layer includes compound
The molar ratio of magnetically soft alloy, carbonyl iron dust and polyurethane resin, the composite soft magnetic alloy, carbonyl iron dust and polyurethane resin is
1~5:0.1~0.3:6~10.The component of electromagnetic wave absorbing layer is reasonable, and composite soft magnetic alloy is uniformly distributed in polyurethane resin, and
And appropriate carbonyl iron dust is mixed when mixing with polyurethane resin, it can effectively improve its absorbing property.
Further, the above-mentioned Novel sealing ring that wave energy is inhaled with noise reduction, the composite soft magnetic alloy, carbonyl iron dust
Molar ratio with polyurethane resin is 1:0.1:9.Electro-magnetic wave absorption as a kind of preferred embodiment of the invention, under said ratio
Layer effect is best.
Further, the above-mentioned Novel sealing ring that wave energy is inhaled with noise reduction, the composite soft magnetic alloy includes Fe-Si
Alloy, FeNi permalloy, Sendust alloy, FeSiCr iron silicochromium, FeCuB alloy, FeCuSiBCo alloy,
FeCuBNi alloy, FeCuSiBCV alloy.Composite soft magnetic alloy, which can according to need, to be selected, and magnetic loss type absorption is belonged to
Agent decays by Polarization Mechanisms such as magnetic hystersis loss, eddy-current loss and residual losses and absorbs electromagnetic noise, has strong absorption, effect
Well, the features such as thickness is thin, working band is wide, light-weight, adhesion strength is high.
Further, the above-mentioned Novel sealing ring that wave energy is inhaled with noise reduction, the rubber layer are made of silicon rubber,
The excellent characteristics such as wide, the strong, good insulating of leakproofness of its Acclimation temperature, can be adapted for working environment different in electronic product,
Its low VOC content of silicon rubber is also more favourable.
Further, the above-mentioned Novel sealing ring that wave energy is inhaled with noise reduction, the foamed cotton layer are using PU polyurethane
Foamed cotton layer made of foaming, with high waterproof and dustproof performance, while having excellent compression performance and flexibility, can
To meet it to shockproof, antidetonation requirement, secondly low VOC is relatively beneficial to environmental protection and human health.
Invention additionally discloses a kind of preparation methods of Novel sealing ring that wave energy is inhaled with noise reduction, comprising the following steps:
By the embedded combination of rubber layer, electromagnetic wave absorbing layer and foamed cotton layer, then through 140 ~ 160 DEG C, 10 ~ 20MPa, 10 ~ 30s of high temperature hot pressing, Gu
The Novel sealing ring that wave energy is inhaled with noise reduction is obtained after change.The novel seal of the present invention that wave energy is inhaled with noise reduction
The preparation method of circle, preparation process is simple, is conducive to large-scale production.
Further, the preparation method of the above-mentioned Novel sealing ring that wave energy is inhaled with noise reduction, comprising the following steps: institute
The preparation method of electromagnetic wave absorbing layer is stated the following steps are included: by composite soft magnetic alloy, carbonyl iron dust and polyurethane resin in height
It after warm kneader is mixed evenly, is added in mold, in 120 ~ 180 DEG C of 3 ~ 6h curing moldings in mold, obtains the electricity
Electro-magnetic wave absorption layer.High temperature kneader is mixed evenly, and mild condition, it is easy to accomplish.
Above-mentioned technical proposal, which can be seen that, the invention has the following beneficial effects: of the present invention there is noise reduction to inhale wave
The Novel sealing ring of function can satisfy requirement of the equipment for waterproof and dustproof, while its electromagnetism after being applied to electronic equipment
Wave absorbed layer absorbs the extra Electromagnetic Interference of resettlement place, reaches the decrease of noise functions.
Detailed description of the invention
Fig. 1-2 is the structural schematic diagram of the Novel sealing ring of the present invention that wave energy is inhaled with noise reduction；
In figure: 1 rubber layer, 2 electromagnetic wave absorbing layers, 3 foamed cotton layers.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", " clockwise ", " inverse
The orientation or positional relationship of the instructions such as hour hands " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description originally
Invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific side
Position construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two
It is a or more than two, unless otherwise restricted clearly.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, two members can also be can be indirectly connected through an intermediary
Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in this hair as the case may be
Concrete meaning in bright.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
Embodiment 1
A kind of Novel sealing ring that wave energy is inhaled with noise reduction as described in Fig. 1-2, by rubber layer 1, electromagnetic wave absorbing layer 2 and bubble
Cotton layer 3 forms.Wherein, the electromagnetic wave absorbing layer 2 includes composite soft magnetic alloy, carbonyl iron dust and polyurethane resin, and institute
The molar ratio for stating composite soft magnetic alloy, carbonyl iron dust and polyurethane resin is 1:0.1:6.
In the present embodiment, the rubber layer 1 is made of silicon rubber, and the composite soft magnetic alloy is FeSiCr iron silicochromium
Alloy, and the foamed cotton layer 3 is using foamed cotton layer made of PU polyurethane foam.
The preparation method of the above-mentioned Novel sealing ring that wave energy is inhaled with noise reduction, comprising the following steps:
Rubber layer 1, electromagnetic wave absorbing layer 2 and foamed cotton layer 3 are individually prepared, wherein the preparation of the electromagnetic wave absorbing layer 2
Method is the following steps are included: composite soft magnetic alloy, carbonyl iron dust and polyurethane resin are mixed evenly in high temperature kneader
Afterwards, it is added in mold, in 120 DEG C of 3h curing moldings in mold, obtains the electromagnetic wave absorbing layer 2.
Again by the embedded combination of rubber layer 1, electromagnetic wave absorbing layer 2 and foamed cotton layer 3, then through 140 DEG C, 10MPa high temperature hot pressing
10s obtains the Novel sealing ring that wave energy is inhaled with noise reduction after solidification.
Embodiment 2
A kind of Novel sealing ring that wave energy is inhaled with noise reduction as described in Fig. 1-2, by rubber layer 1, electromagnetic wave absorbing layer 2 and bubble
Cotton layer 3 forms.Wherein, the electromagnetic wave absorbing layer 2 includes composite soft magnetic alloy, carbonyl iron dust and polyurethane resin, and institute
The molar ratio for stating composite soft magnetic alloy, carbonyl iron dust and polyurethane resin is 5:0.3:10.
In the present embodiment, the rubber layer 1 is made of silicon rubber, and the composite soft magnetic alloy is FeCuSiBCV conjunction
Gold, and the foamed cotton layer 3 is using foamed cotton layer made of PU polyurethane foam.
The preparation method of the above-mentioned Novel sealing ring that wave energy is inhaled with noise reduction, comprising the following steps:
Rubber layer 1, electromagnetic wave absorbing layer 2 and foamed cotton layer 3 are individually prepared, wherein the preparation of the electromagnetic wave absorbing layer 2
Method is the following steps are included: composite soft magnetic alloy, carbonyl iron dust and polyurethane resin are mixed evenly in high temperature kneader
Afterwards, it is added in mold, in 180 DEG C of 6h curing moldings in mold, obtains the electromagnetic wave absorbing layer 2.
Again by the embedded combination of rubber layer 1, electromagnetic wave absorbing layer 2 and foamed cotton layer 3, then through 160 DEG C, 20MPa high temperature hot pressing
30s obtains the Novel sealing ring that wave energy is inhaled with noise reduction after solidification.
Embodiment 3
A kind of Novel sealing ring that wave energy is inhaled with noise reduction as described in Fig. 1-2, by rubber layer 1, electromagnetic wave absorbing layer 2 and bubble
Cotton layer 3 forms.Wherein, the electromagnetic wave absorbing layer 2 includes composite soft magnetic alloy, carbonyl iron dust and polyurethane resin, and institute
The molar ratio for stating composite soft magnetic alloy, carbonyl iron dust and polyurethane resin is 1:0.1:9.
In the present embodiment, the rubber layer 1 is made of silicon rubber, and the composite soft magnetic alloy is Sendust alloy,
And the foamed cotton layer 3 is using foamed cotton layer made of PU polyurethane foam.
The preparation method of the above-mentioned Novel sealing ring that wave energy is inhaled with noise reduction, comprising the following steps:
Rubber layer 1, electromagnetic wave absorbing layer 2 and foamed cotton layer 3 are individually prepared, wherein the preparation of the electromagnetic wave absorbing layer 2
Method is the following steps are included: composite soft magnetic alloy, carbonyl iron dust and polyurethane resin are mixed evenly in high temperature kneader
Afterwards, it is added in mold, in 150 DEG C of 4h curing moldings in mold, obtains the electromagnetic wave absorbing layer 2.
Again by the embedded combination of rubber layer 1, electromagnetic wave absorbing layer 2 and foamed cotton layer 3, then through 150 DEG C, 18MPa high temperature hot pressing
20s obtains the Novel sealing ring that wave energy is inhaled with noise reduction after solidification.
Embodiment 4
A kind of Novel sealing ring that wave energy is inhaled with noise reduction as described in Fig. 1-2, by rubber layer 1, electromagnetic wave absorbing layer 2 and bubble
Cotton layer 3 forms.Wherein, the electromagnetic wave absorbing layer 2 includes composite soft magnetic alloy, carbonyl iron dust and polyurethane resin, and institute
The molar ratio for stating composite soft magnetic alloy, carbonyl iron dust and polyurethane resin is 1:0.2:10.
In the present embodiment, the rubber layer 1 is made of silicon rubber, and the composite soft magnetic alloy is Fe-Si alloy, and
The foamed cotton layer 3 is using foamed cotton layer made of PU polyurethane foam.
The preparation method of the above-mentioned Novel sealing ring that wave energy is inhaled with noise reduction, comprising the following steps:
Rubber layer 1, electromagnetic wave absorbing layer 2 and foamed cotton layer 3 are individually prepared, wherein the preparation of the electromagnetic wave absorbing layer 2
Method is the following steps are included: composite soft magnetic alloy, carbonyl iron dust and polyurethane resin are mixed evenly in high temperature kneader
Afterwards, it is added in mold, in 120 DEG C of 3 ~ 6h curing moldings in mold, obtains the electromagnetic wave absorbing layer 2.
Again by the embedded combination of rubber layer 1, electromagnetic wave absorbing layer 2 and foamed cotton layer 3, then through 160 DEG C, 15MPa high temperature hot pressing
30s obtains the Novel sealing ring that wave energy is inhaled with noise reduction after solidification.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the principle of the present invention, several improvement can also be made, these improvement also should be regarded as of the invention
Protection scope.
Claims (8)
1. a kind of Novel sealing ring for inhaling wave energy with noise reduction, it is characterised in that: by rubber layer (1), electromagnetic wave absorbing layer (2)
It is formed with foamed cotton layer (3).
2. the Novel sealing ring according to claim 1 for inhaling wave energy with noise reduction, it is characterised in that: the electromagnetic wave is inhaled
Receiving layer (2) includes composite soft magnetic alloy, carbonyl iron dust and polyurethane resin, the composite soft magnetic alloy, carbonyl iron dust and poly- ammonia
The molar ratio of ester resin is 1 ~ 5:0.1 ~ 0.3:6 ~ 10.
3. the Novel sealing ring according to claim 2 for inhaling wave energy with noise reduction, it is characterised in that: the composite soft-magnetic
The molar ratio of alloy, carbonyl iron dust and polyurethane resin is 1:0.1:9.
4. the Novel sealing ring according to claim 1-3 for inhaling wave energy with noise reduction, it is characterised in that: described
Composite soft magnetic alloy includes Fe-Si alloy, FeNi permalloy, Sendust alloy, FeSiCr iron silicochromium, FeCuB conjunction
Gold, FeCuSiBCo alloy, FeCuBNi alloy, FeCuSiBCV alloy.
5. the Novel sealing ring according to claim 1 for inhaling wave energy with noise reduction, it is characterised in that: the rubber layer
(1) it is made of silicon rubber.
6. the Novel sealing ring according to claim 1 for inhaling wave energy with noise reduction, it is characterised in that: the foamed cotton layer
(3) for using foamed cotton layer made of PU polyurethane foam.
7. the preparation method of the Novel sealing ring according to claim 1-6 for inhaling wave energy with noise reduction, special
Sign is: the following steps are included: by the embedded combination of rubber layer (1), electromagnetic wave absorbing layer (2) and foamed cotton layer (3), then through 140 ~
160 DEG C, 10 ~ 20MPa, 10 ~ 30s of high temperature hot pressing obtain the Novel sealing ring that wave energy is inhaled with noise reduction after solidification.
8. the preparation method of the Novel sealing ring according to claim 7 for inhaling wave energy with noise reduction, it is characterised in that: packet
Include following steps: the preparation method of the electromagnetic wave absorbing layer (2) is the following steps are included: by composite soft magnetic alloy, carbonyl iron dust
With polyurethane resin after high temperature kneader is mixed evenly, be added in mold, in 120 ~ 180 DEG C in mold 3 ~ 6h it is solid
Chemical conversion type obtains the electromagnetic wave absorbing layer (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811452807.3A CN109640568B (en) | 2018-11-30 | 2018-11-30 | Novel sealing ring with noise reduction and wave absorption functions and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811452807.3A CN109640568B (en) | 2018-11-30 | 2018-11-30 | Novel sealing ring with noise reduction and wave absorption functions and preparation method thereof |
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| CN109640568A true CN109640568A (en) | 2019-04-16 |
| CN109640568B CN109640568B (en) | 2020-07-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110933540A (en) * | 2019-12-09 | 2020-03-27 | 西安鼎蓝通信技术有限公司 | Noise reduction sealing ring suitable for sound equipment and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN109640568B (en) | 2020-07-07 |
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