CN209546224U - Wide-band and wave-absorbing piece and its electronic equipment - Google Patents
Wide-band and wave-absorbing piece and its electronic equipment Download PDFInfo
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- CN209546224U CN209546224U CN201821936187.6U CN201821936187U CN209546224U CN 209546224 U CN209546224 U CN 209546224U CN 201821936187 U CN201821936187 U CN 201821936187U CN 209546224 U CN209546224 U CN 209546224U
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Abstract
A kind of wide-band and wave-absorbing piece and its electronic equipment provided by the utility model, are related to absorbing material manufacture technology field, comprising: conductive fabric；Sheet iron sial coating, the sheet iron sial coating are coated on the conductive fabric；Flaky carbonyl iron powder powder coating, the flaky carbonyl iron powder powder coating are coated on the sheet iron sial coating；The overall thickness of the conductive fabric, the sheet iron sial coating and the flaky carbonyl iron powder powder coating is between 0.075mm-0.475mm.The structure multiple-layer overlapped of sheet, electromagnetic wave between multilayer can multiple reflections, therefore, can reinforcing material in a certain range microwave absorbing property.Based on this characteristic, flaky carbonyl iron powder can be made and be uniformly dispersed, align neat coating, belong to the innovative design inhaled in wave plate production, is acted on by the reflection of electromagnetic wave of conductive fabric, the absorption to 1GHZ or more electromagnetic wave can be greatly enhanced.
Description
Technical field
The utility model relates to absorbing material manufacture technology fields, more particularly, to a kind of wide-band and wave-absorbing piece and its electronics
Equipment.
Background technique
With the development of modern science and technology, influence of the electromagenetic wave radiation to environment increasingly increases.Airport, machine flight because
Electromagnetic Interference can not take off and overdue；The normal work of various electronic instrument for diagnosing and curing diseases devices can be often interfered in hospital, mobile phone.Cause
This, administers electromagnetic pollution, finds a kind of material that can be kept out and weaken electromagenetic wave radiation, it has also become the big class of the one of material science
Topic.
Inhaling wave plate is exactly that one kind can absorb or substantially weaken the electromagnetic wave energy for projecting its surface, to reduce electricity
A kind of material of the interference of magnetic wave.The effective absorption band of suction wave plate in the prior art is independently distributed in 1MHz-1GHz, 1GHz-
Two frequency bands of 18GHz are unable to satisfy the demand of many electronic device applications occasion electromagnetic shieldings.Thickness requirement it is relatively thin (≤
In the case where 0.15mm), the existing technology that wave plate is inhaled using multilayer, reflection loss cannot reach the requirement of -5db.
So in the prior art inhale the wave plate feelings not wide enough there are absorption band in the case of low thickness within 0.15mm
Condition influences the development for inhaling wave plate.
Utility model content
The purpose of this utility model is to provide a kind of wide-band and wave-absorbing piece and its electronic equipments, to solve in the prior art
There are the technical problems that absorption band is not wide enough or thickness low LCL is thin for existing suction wave plate.
A kind of wide-band and wave-absorbing piece provided by the utility model, comprising:
Conductive fabric；
Sheet iron sial coating, the sheet iron sial coating are coated on the conductive fabric；
Flaky carbonyl iron powder powder coating, the flaky carbonyl iron powder powder coating are coated in the sheet iron sial coating
On；
The overall thickness of the conductive fabric, the sheet iron sial coating and the flaky carbonyl iron powder powder coating exists
Between 0.075mm-0.475mm.
Further, in the embodiments of the present invention, the conductive fabric includes:
It is any one in nickel plating conductive fabric, gold-plated conductive fabric, silver-plated conductive fabric, plating charcoal conductive fabric or aluminium foil fiber composite cloth
Kind.
Further, in the embodiments of the present invention, the sheet iron sial coating use with a thickness of 0.5-3 μm,
The sheet iron sial that median is 10-100 μm is as filler.
Further, in the embodiments of the present invention, the flaky carbonyl iron powder powder coating uses median
It is 1-15 μm of carbonyl iron dust as filler.
Further, in the embodiments of the present invention, the thickness of the conductive fabric 0.025mm-0.075mm it
Between.
Further, in the embodiments of the present invention, the thickness of the sheet iron sial coating is in 0.03mm-
Between 0.20mm.
Further, in the embodiments of the present invention, the thickness of the flaky carbonyl iron powder powder coating exists
Between 0.02mm-0.20mm.
Further, in the embodiments of the present invention, the wide-band and wave-absorbing piece further include:
Glue-line；
The glue-line is attached on the flaky carbonyl iron powder powder coating；Alternatively, the glue-line is attached to the conduction
On cloth.
Further, in the embodiments of the present invention, the thickness of the glue-line is between 0.008mm-0.012mm.
Present invention also provides a kind of electronic equipment, including the wide-band and wave-absorbing piece.
It in the above-mentioned technical solutions, is to be designed based on flaky carbonyl iron powder, compared to spherical carbonyl iron powder, sheet
The carbonyl iron dust of change have high saturation magnetization and certain intra-face anisotropy, can break through spherical carbonyl iron powder by
The limitation of the Snoek limit arrived, it is effective to enhance high-gradient magnetism energy.The structure multiple-layer overlapped of sheet, electromagnetic wave is between multilayer
Can multiple reflections, therefore, can reinforcing material in a certain range microwave absorbing property.
Based on this characteristic, flaky carbonyl iron powder can be made and be uniformly dispersed, align neat coating, belong to suction
Innovative design in wave plate production is acted on by the reflection of electromagnetic wave of conductive fabric, can be greatly enhanced to 1GHZ to power on
The absorption of magnetic wave.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the first level structural schematic diagram for the wide-band and wave-absorbing piece that the utility model one embodiment provides；
Fig. 2 is the second level structural schematic diagram of the wide-band and wave-absorbing piece that the utility model one embodiment provides.
Appended drawing reference:
1- conductive fabric；
2- sheet iron sial coating；
3- flaky carbonyl iron powder powder coating；
4- glue-line.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Fig. 1 is the first level structural schematic diagram for the wide-band and wave-absorbing piece that the utility model one embodiment provides；Fig. 2 is
Second level structural schematic diagram of the wide-band and wave-absorbing piece that the utility model one embodiment provides；As shown in Figs. 1-2, this implementation
A kind of wide-band and wave-absorbing piece that example provides, comprising:
Conductive fabric 1；
Sheet iron sial coating 2, the sheet iron sial coating 2 are coated on the conductive fabric 1；
Flaky carbonyl iron powder powder coating 3, the flaky carbonyl iron powder powder coating 3 are applied coated in the sheet iron sial
On layer 2；
The overall thickness of the conductive fabric 1, the sheet iron sial coating 2 and the flaky carbonyl iron powder powder coating 3 exists
Between 0.075mm-0.475mm.
Conductive fabric 1 is using fiber cloth as substrate, and generally common polyester fiber cloth imposes fiber cloth after preposition processing
Plating metal coating makes it have metallic character and becomes conductive fibre fabric, such as nickel plating conductive fabric 1, to 1MHz-20GHz frequency
The electromagnetic wave of rate has reflex.
So being used as substrate using conductive fabric 1, sheet iron sial coating 2 is coated on conductive fabric 1.Sheet iron sial applies
The electromagnetic wave of 2 pairs of 1MHZ-1GHZ frequency of layer has stronger absorption, and the iron sial of 0.03mm inhales wave plate, magnetic permeability μ '=
150, reflection loss≤- 10db is absorbed in 1MHz-1GHz wave band.
Meanwhile flaky carbonyl iron powder powder coating 3, the sheet carbonyl are coated also on the sheet iron sial coating 2
Iron powder powder coating 3 has stronger absorption, the sheet carbonyl iron of 0.02mm thickness to the electromagnetic wave of 1GHZ-20GHZ frequency
Powder powder coating 3 absorbs reflection loss≤- 5db in 1GHz-20GHz wave band.
From the foregoing, it will be observed that the technical solution of the application is designed based on flaky carbonyl iron powder.The saturation of carbonyl iron dust
Magnetic induction intensity is high, and stability is strong, can be used as magnetic medium type microwave absorption.Compared to spherical carbonyl iron powder, flaking
Carbonyl iron dust has high saturation magnetization and certain intra-face anisotropy, can break through what spherical carbonyl iron powder was subject to
The limitation of the Snoek limit, it is effective to enhance high-gradient magnetism energy.The structure multiple-layer overlapped of sheet, electromagnetic wave can between multilayer
Multiple reflections, therefore, can reinforcing material in a certain range microwave absorbing property.
Based on this characteristic, flaky carbonyl iron powder can be made and be uniformly dispersed, align neat coating, belong to suction
Innovative design in wave plate production is acted on by the reflection of electromagnetic wave of conductive fabric 1, can be greatly enhanced to 1GHZ to power on
The absorption of magnetic wave.
It is learnt through overtesting, using conductive fabric 1 described above, the sheet iron sial coating 2 and the sheet carbonyl iron
The suction wave plate that 3 three-decker of powder powder coating is constituted is provided in 1MHZ-20GHZ frequency band when overall thickness is 0.10mm
The absorption of≤- 5DB meets ultra-thin electronics industry, wideband, efficient industry demand.
In order to more be apparent from the technical effect of technical scheme, following examples are now lifted to wide-band and wave-absorbing
The technical effect of piece is illustrated.
Embodiment one
The following figure be overall thickness 0.10mm suction wave plate (conductive fabric 1 with a thickness of 0.025mm, sheet iron sial coating 2 with a thickness of
0.030mm, flaky carbonyl iron powder powder coating 3 are with a thickness of 0.045mm) reflection loss test chart:
From the point of view of from the graph, the reflection loss of < -5db is all had in 1MHz-18GHz.
Embodiment two
The following figure be overall thickness 0.12mm suction wave plate (conductive fabric 1 with a thickness of 0.025mm, sheet iron sial coating 2 with a thickness of
0.030mm, 3 thickness 0.075mm of flaky carbonyl iron powder powder coating) reflection loss test chart:
From the point of view of from the graph, the reflection loss of < -5db is equally all had in 1MHz-18GHz.
Preferably, in the embodiments of the present invention, the conductive fabric 1 includes:
It is any one in nickel plating conductive fabric, gold-plated conductive fabric, silver-plated conductive fabric, plating charcoal conductive fabric or aluminium foil fiber composite cloth
Kind.
Further, in the embodiments of the present invention, the sheet iron sial coating 2 is using with a thickness of 0.5-3 μ
M, the sheet iron sial that median is 10-100 μm is as filler.
Further, in the embodiments of the present invention, the flaky carbonyl iron powder powder coating 3 uses median
It is 1-15 μm of carbonyl iron dust as filler.
Preferably, in the embodiments of the present invention, the thickness of the conductive fabric 1 0.025mm-0.075mm it
Between.For example, can choose the conductive fabric 1 of 0.035mm thickness, the conductive fabric 1 of 0.045mm thickness, 0.055mm thickness conductive fabric 1 and
The conductive fabric 1 of 0.065mm thickness.
Preferably, in the embodiments of the present invention, the thickness of the sheet iron sial coating 2 is in 0.03mm-
Between 0.20mm.For example, can choose the sheet iron sial coating 2 of 0.08mm thickness, 0.12mm thickness sheet iron sial coating 2,
The sheet iron sial coating 2 of 0.16mm thickness and the sheet iron sial coating 2 of 0.18mm thickness.
Preferably, in the embodiments of the present invention, the thickness of the flaky carbonyl iron powder powder coating 3 exists
Between 0.02mm-0.20mm.For example, can choose the sheet of the flaky carbonyl iron powder powder coating 3 of 0.08mm thickness, 0.12mm thickness
The flaky carbonyl iron powder of carbonyl iron dust powder coating 3, the flaky carbonyl iron powder powder coating 3 of 0.16mm thickness and 0.18mm thickness
Powder coating 3.
Further, in the embodiments of the present invention, the wide-band and wave-absorbing piece further include:
Glue-line 4, the glue-line 4 are attached on the flaky carbonyl iron powder powder coating 3；In addition, the glue-line 4 can also be with
It is attached on the conductive fabric 1.The glue-line 4 of attaching can be used as in addition to the conductive fabric 1,2 and of sheet iron sial coating
Four-layer structure except the flaky carbonyl iron powder powder coating 3 can facilitate cross cutting fitting to use in this way.
The glue-line 4 can use double faced adhesive tape, and double faced adhesive tape can also be substituted for other glue by those skilled in the art
The structure of layer 4, it is not limited here.
Further, in the embodiments of the present invention, the thickness of the glue-line 4 0.008mm-0.012mm it
Between.In the particular embodiment, it can choose the glue of the glue-line 4 of 0.009mm thickness, the glue-line 4 of 0.01mm thickness and 0.011mm thickness
Layer 4, the glue-line 4 of preferably 0.01mm thickness.
Present invention also provides a kind of electronic equipment, including the wide-band and wave-absorbing piece.
Since specific structure, the principle of work and power and the technical effect of the wide-band and wave-absorbing piece are in detailed hereinbefore, so
The related production of wide-band and wave-absorbing piece also specifically refers to record above, just repeats no more herein.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of wide-band and wave-absorbing piece characterized by comprising
Conductive fabric；
Sheet iron sial coating, the sheet iron sial coating are coated on the conductive fabric；
Flaky carbonyl iron powder powder coating, the flaky carbonyl iron powder powder coating are coated on the sheet iron sial coating；
The overall thickness of the conductive fabric, the sheet iron sial coating and the flaky carbonyl iron powder powder coating is in 0.075mm-
Between 0.475mm.
2. wide-band and wave-absorbing piece according to claim 1, which is characterized in that the conductive fabric includes:
Nickel plating conductive fabric, gold-plated conductive fabric, silver-plated conductive fabric, plating charcoal conductive fabric or aluminium foil fiber composite cloth in any one.
3. wide-band and wave-absorbing piece according to claim 1, which is characterized in that the sheet iron sial coating use with a thickness of
0.5-3 μm, median be 10-100 μm of sheet iron sial as filler.
4. wide-band and wave-absorbing piece according to claim 1, which is characterized in that the flaky carbonyl iron powder powder coating uses
The carbonyl iron dust that median is 1-15 μm is as filler.
5. wide-band and wave-absorbing piece according to claim 1, which is characterized in that the thickness of the conductive fabric is in 0.025mm-
Between 0.075mm.
6. wide-band and wave-absorbing piece according to claim 5, which is characterized in that the thickness of the sheet iron sial coating exists
Between 0.03mm-0.20mm.
7. wide-band and wave-absorbing piece according to claim 6, which is characterized in that the thickness of the flaky carbonyl iron powder powder coating
Degree is between 0.02mm-0.20mm.
8. wide-band and wave-absorbing piece according to any one of claims 1-7, which is characterized in that further include:
Glue-line；
The glue-line is attached on the flaky carbonyl iron powder powder coating；Alternatively, the glue-line is attached on the conductive fabric.
9. wide-band and wave-absorbing piece according to claim 8, which is characterized in that the thickness of the glue-line is in 0.008mm-
Between 0.012mm.
10. a kind of electronic equipment, which is characterized in that including wide-band and wave-absorbing piece as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821936187.6U CN209546224U (en) | 2018-11-22 | 2018-11-22 | Wide-band and wave-absorbing piece and its electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821936187.6U CN209546224U (en) | 2018-11-22 | 2018-11-22 | Wide-band and wave-absorbing piece and its electronic equipment |
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| Publication Number | Publication Date |
|---|---|
| CN209546224U true CN209546224U (en) | 2019-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821936187.6U Active CN209546224U (en) | 2018-11-22 | 2018-11-22 | Wide-band and wave-absorbing piece and its electronic equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109219335A (en) * | 2018-11-22 | 2019-01-15 | 昆山市中迪新材料技术有限公司 | Wide-band and wave-absorbing piece and preparation method thereof |
-
2018
- 2018-11-22 CN CN201821936187.6U patent/CN209546224U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109219335A (en) * | 2018-11-22 | 2019-01-15 | 昆山市中迪新材料技术有限公司 | Wide-band and wave-absorbing piece and preparation method thereof |
| CN109219335B (en) * | 2018-11-22 | 2024-04-30 | 江苏中迪新材料技术有限公司 | Broadband wave absorbing plate and manufacturing method thereof |
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| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215000 No. 8 pan Jing Road, Kunshan City, Kunshan City, Jiangsu Patentee after: Jiangsu Zhongdi New Material Technology Co., Ltd Address before: 215000 No. 8 pan Jing Road, Kunshan City, Kunshan City, Jiangsu Patentee before: KUNSHAN ZHONGDI MATERIALS TECHNOLOGY Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 213200 No.139 Huaye Road, Jintan District, Changzhou City, Jiangsu Province Patentee after: Jiangsu Zhongdi New Material Technology Co., Ltd Address before: 215000 No.8, nanpanjing Road, Zhoushi Town, Kunshan City, Suzhou City, Jiangsu Province Patentee before: Jiangsu Zhongdi New Material Technology Co., Ltd |