CN208141911U - A kind of pure magnesium or magnesium alloy thin strip are electromagnetically shielded light-duty cable - Google Patents
A kind of pure magnesium or magnesium alloy thin strip are electromagnetically shielded light-duty cable Download PDFInfo
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- CN208141911U CN208141911U CN201820600216.5U CN201820600216U CN208141911U CN 208141911 U CN208141911 U CN 208141911U CN 201820600216 U CN201820600216 U CN 201820600216U CN 208141911 U CN208141911 U CN 208141911U
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- magnesium alloy
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Abstract
The utility model relates to metal electromagnetic shielded cable line fields, light-duty cable is electromagnetically shielded more particularly, to a kind of pure magnesium for solving shielded cable lightweight problem or magnesium alloy thin strip, including copper conductor, insulating layer and shielded layer, the insulating layer is set to the outer layer of the copper conductor, the shielded layer is set to the outer layer of the insulating layer, it is characterized in that, the shielded layer is the pure magnesium of spiral winding or the strip layer of magnesium alloy, the strip with a thickness of 0.03mm ~ 0.2mm, width 3mm ~ 20mm of the strip, adjacent strip amount of lap are the 30% ~ 50% of strip width.The strip surface plating is coated with graphene or carbon nanotube layer, and coating layer thickness is 10 μm ~ 35 μm.The strip is the strip of pure magnesium of the total reduction greater than 90% or magnesium alloy.Compared with prior art, the utility model has the advantages that：Electromagnetic shielded cable has the characteristics that density is small, screening frequencies is wide, mechanical property is good.
Description
Technical field
The utility model relates to metal electromagnetic shielded cable line fields, more particularly, to a kind of solution shielded cable lightweight
The pure magnesium or magnesium alloy thin strip of problem are electromagnetically shielded light-duty cable.
Background technique
In order to improve the interference free performance of cable, mostly outside cable plus shielding housing is made into shielded cable.Shield side
Formula is a variety of, and for Shielded Twisted Pair, common shielding mode has：1）It is only wrapped up with aluminium foil outside four pairs of lines；2）Each pair of line
It is wrapped up with aluminium foil, four pairs of lines are externally provided with metal mesh；Both commonly referred to as single Shielded Twisted Pairs；3）In four pairs of line external application aluminium foils and
Metal mesh package；4）Each pair of line is wrapped up with aluminium foil, four pairs of line outside metal gauzes；Both are commonly referred to as double shielded twisted pair line, aluminium
Foil is anti-High-frequency Interference, and metal mesh is anti-low-frequency disturbance.
When electromagnetic wave directive metallic conductor surface, intensity will constantly decay.Electromagnetic wave penetrate metal depth and its
Frequency and the conductivity of conductor, magnetic conductivity are related, and the frequency of electromagnetic wave is higher, and the conductivity for shielding metal is bigger, and magnetic conductivity is got over
Greatly, the depth penetrated is with regard to smaller.Frequency electromagnetic waves are formed in surface conductor layer and are vortexed.Vortex keeps a part of electromagnetism wave direction space anti-
It penetrates, another part electromagnetic wave penetrates in conductor.Frequency electromagnetic waves can be prevented to penetrate good conductor using skin effect and be made into electricity
Magnetic shielding device.It is general silver-plated as shielding material, such as aluminium, copper and copper using the material of high conductivity.When needing to improve material
The electromagnetic wave shielding of material can be realized often by increasing thickness or the electric conductivity of metal layer, and the thickness for increasing metal layer can be made
At the increase of cable weight, this becomes unacceptable in the light-weighted occasion of needs.And magnesium alloy is when increasing thickness, Yin Qimi
It spends small unobvious to increasing weight.
Magnesium alloy is considered as most potential electromagnetic shielding material because of the small and excellent full range electromagnet shield effect of its density
Material, density is low, processing performance is good, is to solve shielded cable lightweight to obtain effective means.But current magnesium alloy electromagnetic screen
It covers cable not to be widely applied, reason：First is that magnesium alloy temperature-room type plasticity difference is processed into, strip is difficult, and thick magnesium alloy plate
Because plasticity is bad when as cable metallic screens layer, when winding small diameter wire cables, bending stress is excessive and be easy to produce and split
Line causes electromagnetic leakage；There are one the reason is that magnesium and magnesium alloy chemical property are active, surface is easy to oxidize, makes it to electromagnetism
The absorption of wave and albedo reduce.
Summary of the invention
The utility model proposes a kind of pure magnesium or magnesium alloy thin strip to be electromagnetically shielded light-duty cable, overcomes the prior art not
Foot, by with excellent electromagnetic shielding performance magnesium metal or magnesium alloy and with Nanosurface effect and it is excellent lead it is anti-corrosion
Property, the graphene of electrical property, heating conduction or carbon nanotube combine, and produce light-weight, corrosion-resistant, and effectiveness is good
Electromagnetic shielded cable, may also be combined with the aluminium foil of high conductivity, MULTILAYER COMPOSITE light shielding cable be made.
To achieve the goals above, the technical solution of the utility model is such：
A kind of pure magnesium or magnesium alloy thin strip are electromagnetically shielded light-duty cable, including copper conductor, insulating layer and shielded layer, it is described absolutely
Edge layer is set to the outer layer of the copper conductor, and the shielded layer is set to the outer layer of the insulating layer, which is characterized in that the screen
Cover the strip layer of pure magnesium or magnesium alloy that layer is spiral winding, the strip with a thickness of 0.03mm ~ 0.2mm, the strip
Width 3mm ~ 20mm, adjacent strip amount of lap are the 30% ~ 50% of strip width.
The strip surface plating is coated with graphene or carbon nanotube layer, and coating layer thickness is 10 μm ~ 35 μm.
The strip is the strip of pure magnesium of the total reduction greater than 90% or magnesium alloy.
The inner or outer side of the shielded layer is equipped with rubber protective layer.
The composite layer that the shielded layer is made of aluminium foil layer and strip layer.
The aluminium foil layer is set to the inboard, outside or the inboard and outside that are separately positioned on strip layer of strip layer.
Plastic film layers are equipped between the aluminium foil layer and the strip layer.
The insulating layer is pvc material layer, urethane material, cross-linking polyethylene materials layer, the poly- second of physical blowing
One of alkene material layer.
Compared with prior art, the utility model has the advantages that：
1）Magnesium metal and magnesium alloy have excellent electromagnetic shielding performance, but its chemical property is active, and surface is easy to oxidize,
Reduce the absorption and albedo to electromagnetic wave, graphene or carbon nanotube have Nanosurface effect and it is excellent lead it is resistance to
Corrosion, electrical property, heating conduction, by the electricity that surface applies or plating graphene or the pure magnesium or magnesium alloy thin strip of carbon nanotube are fabricated to
Electromagnetic shielding cable has the characteristics that density is small, screening frequencies is wide, mechanical property is good.
2）Also in combination with the aluminium foil of high conductivity, MULTILAYER COMPOSITE light shielding cable is made in magnesium alloy shielding line, this
Reflection, absorption and refracting power to electromagnetic wave can be improved in light-duty MULTILAYER COMPOSITE shielding construction cable, improves the comprehensive electricity of cable
Magnetic shield performance.
3）The cable can provide thicker shielded layer under identical weight, can loss of weight 5- to the cable for needing lightweight purposes
10%, and its shield effectiveness increases 5-10%, improves reflection, absorption and the refracting power to electromagnetic wave, improves the comprehensive of cable
Close electromagnetic shielding performance.
Detailed description of the invention
Fig. 1 is one structural schematic diagram of the utility model embodiment.
Fig. 2 is two structural schematic diagram of the utility model embodiment.
In figure：1- conductive core, 2- insulating layer, 3- strip layer, 4- plastic film layers, 5- aluminium foil layer, 6- rubber protective layer.
Specific embodiment
Specific embodiment of the present utility model is described further with reference to the accompanying drawing：
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or integrally；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, it can also be indirectly connected through an intermediary；It can be two members
The interaction relationship of connection or two elements inside part, unless otherwise restricted clearly.For the ordinary skill of this field
For personnel, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
See Fig. 1, is that a kind of pure magnesium of the utility model or magnesium alloy thin strip are electromagnetically shielded light-duty one structure of cable embodiment and show
It is intended to, including copper conductor 1（2 ~ 6mm of diameter）, insulating layer 2 and strip layer 3, insulating layer 2 be set to the outer layer of copper conductor 1, strip
Layer 3 is set to the outer layer of insulating layer 2 as shielded layer, and 2 material of insulating layer is polyvinyl chloride, and strip layer 3 is greater than by total reduction
90% pure magnesium strip spiral winding forms, the thickness 0.08mm of magnesium strip, the width 15mm of strip, and adjacent strip amount of lap is
5mm, this amount of lap can guarantee that the specification cable has biggish pliability.Rubber protective layer 6, rubber are equipped on the outside of strip layer 3
Protective layer guarantees that cable favorably in the performances such as insulation, weather-proof, wear-resistant.
See Fig. 2, is that a kind of pure magnesium of the utility model or magnesium alloy thin strip are electromagnetically shielded light-duty two structure of cable embodiment and show
It is intended to, including copper conductor 1（8 ~ 12mm of diameter）, insulating layer 2 and strip layer 3, insulating layer 2 be set to the outer layer of copper conductor 1, strip
Layer 3 is set to the outer layer of insulating layer 2 as shielded layer, and 2 material of insulating layer is polyurethane material.Strip layer 3 is big by total reduction
Magnesium alloy AZ31 strip spiral winding in 90% forms, strip thickness 0.1mm, the width 20mm of strip, adjacent strip amount of lap
For 8.4mm, this amount of lap can guarantee the specification cable intensity with higher, those be suitble to have higher requirements cable intensity
Occasion.The composite layer that shielded layer is made of aluminium foil layer 5 and strip layer 3 in embodiment two.Aluminium foil layer 5 is set to the outer of strip layer 3
Side, thickness 0.008mm.It is equipped with plastic film layers 4 between aluminium foil layer 5 and strip layer 3, plays the role of lubrication, in cable bend
When, it not will cause abrasion, influence the insulation performance of cable.
In embodiment, after strip layer surface cleans up, alkene is graphited on magnesium alloy foil surface with coating machine or carbon is received
Mitron, then the magnesium strip for being coated with graphene or carbon nanotube is wrapped in 2 outer fix of insulating layer.Graphene or carbon nanotube tool
Have Nanosurface effect and it is excellent lead corrosion resistance, electrical property, heating conduction, surface is applied or is plated graphene or carbon nanotube
Pure magnesium or the electromagnetic shielded cable that is fabricated to of magnesium alloy thin strip have the characteristics that density is small, screening frequencies is wide, mechanical property is good.
Strip layer 3 also can be used magnesium alloy AZ61 to be substituted in embodiment two, and the purpose of this utility model can be achieved.
Certainly, above description is not the limit value to the essential scope of the utility model, and the utility model also and not only limits
In the example above, those skilled in the art's variation made in the essential scope of the utility model, is added or is replaced remodeling
It changes, should also belong to the protection scope of the utility model.
Claims (8)
1. a kind of pure magnesium or magnesium alloy thin strip are electromagnetically shielded light-duty cable, including copper conductor, insulating layer and shielded layer, the insulation
Layer is set to the outer layer of the copper conductor, and the shielded layer is set to the outer layer of the insulating layer, which is characterized in that the shielding
Layer be spiral winding pure magnesium or magnesium alloy strip, the strip with a thickness of 0.03mm ~ 0.2mm, the width of the strip
3mm ~ 20mm, adjacent strip amount of lap are the 30% ~ 50% of strip width.
2. a kind of pure magnesium according to claim 1 or magnesium alloy thin strip are electromagnetically shielded light-duty cable, which is characterized in that described
Graphene or carbon nanotube layer are plated or be coated in strip surface, and coating layer thickness is 10 μm ~ 35 μm.
3. a kind of pure magnesium according to claim 1 or magnesium alloy thin strip are electromagnetically shielded light-duty cable, which is characterized in that described
Strip is the strip of pure magnesium of the total reduction greater than 90% or magnesium alloy.
4. a kind of pure magnesium according to claim 1 or magnesium alloy thin strip are electromagnetically shielded light-duty cable, which is characterized in that described
The inner or outer side of shielded layer is equipped with rubber protective layer.
5. a kind of pure magnesium according to claim 1 or magnesium alloy thin strip are electromagnetically shielded light-duty cable, which is characterized in that described
The composite layer that shielded layer is made of aluminium foil layer and strip layer.
6. a kind of pure magnesium according to claim 5 or magnesium alloy thin strip are electromagnetically shielded light-duty cable, which is characterized in that described
Aluminium foil layer is set to the inboard, outside or the inboard and outside that are separately positioned on strip layer of strip layer.
7. a kind of pure magnesium according to claim 5 or magnesium alloy thin strip are electromagnetically shielded light-duty cable, which is characterized in that described
Plastic film layers are equipped between aluminium foil layer and the strip layer.
8. a kind of pure magnesium according to claim 1 or magnesium alloy thin strip are electromagnetically shielded light-duty cable, which is characterized in that described
Insulating layer is pvc material layer, in urethane material, cross-linking polyethylene materials layer, physical blowing polythene material layer
It is a kind of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820600216.5U CN208141911U (en) | 2018-04-25 | 2018-04-25 | A kind of pure magnesium or magnesium alloy thin strip are electromagnetically shielded light-duty cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820600216.5U CN208141911U (en) | 2018-04-25 | 2018-04-25 | A kind of pure magnesium or magnesium alloy thin strip are electromagnetically shielded light-duty cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208141911U true CN208141911U (en) | 2018-11-23 |
Family
ID=64311156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820600216.5U Expired - Fee Related CN208141911U (en) | 2018-04-25 | 2018-04-25 | A kind of pure magnesium or magnesium alloy thin strip are electromagnetically shielded light-duty cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208141911U (en) |
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2018
- 2018-04-25 CN CN201820600216.5U patent/CN208141911U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181123 Termination date: 20210425 |
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| CF01 | Termination of patent right due to non-payment of annual fee |