CN209489094U - A kind of electromagnetic shielding bag - Google Patents
A kind of electromagnetic shielding bag Download PDFInfo
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- CN209489094U CN209489094U CN201821527993.8U CN201821527993U CN209489094U CN 209489094 U CN209489094 U CN 209489094U CN 201821527993 U CN201821527993 U CN 201821527993U CN 209489094 U CN209489094 U CN 209489094U
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Abstract
The utility model provides a kind of electromagnetic shielding bag, is related to electromangnetic spectrum field.Electromagnetic shielding bag provided by the utility model includes bag body, shielded layer and encapsulated layer, wherein, the shielded layer is located at the inside of the bag body, the encapsulated layer is located at side of the shielded layer far from the bag body, the shielded layer includes along the adhesive layer and composite layer set gradually far from the bag body direction, the composite layer includes the filler in conductive silk screen and the gap for being filled in the conductive silk screen, and the filler includes low-melting-point metal.The technical solution of the utility model can effectively be electromagnetically shielded the article in bag.
Description
Technical field
The utility model relates to electromangnetic spectrum field more particularly to a kind of electromagnetic shielding bags.
Background technique
With the fast development of modern electronics industry, wireless communication and digitizing technique, electronic electric equipment is more and more general
And the quality of life is substantially increased, but these equipment can all generate electromagnetic radiation to some extent.Currently, electromagnetic radiation is
As the another big public hazards after noise pollution, atmosphere pollution, water pollution, solid waste pollution, electromagnetic radiation is not only caused
Interfering with each other between radiation source, but also the space of human survival is polluted, scientific research confirms that electromagnetic radiation reaches certain
Intensity just will affect nerve, reproduction, the immune and cardiovascular system of people, to induce various diseases.Therefore, it is badly in need of various
Electromagnetic shielded product.
Utility model content
The utility model provides a kind of electromagnetic shielding bag, can be effectively electromagnetically shielded to the article in bag.
The utility model provides a kind of electromagnetic shielding bag, adopts the following technical scheme that
The electromagnetic shielding bag includes bag body, shielded layer and encapsulated layer, wherein the shielded layer is located at the interior of the bag body
Side, the encapsulated layer are located at side of the shielded layer far from the bag body, and the shielded layer includes along far from the bag body side
To the adhesive layer and composite layer set gradually, the composite layer includes conductive silk screen and the gap for being filled in the conductive silk screen
In filler, the filler includes low-melting-point metal.
Optionally, be provided with velcro on the inside of the sack of the bag body, wherein the velcro include hook surface and with institute
The hair side that hook surface matches is stated, along the circumferential direction of the sack, the hook surface and hair side head and the tail are connected.
Optionally, opening is provided on the encapsulated layer, the opening is corresponding with the velcro position, and institute
Stating the low-melting-point metal at aperture position in the composite layer is solid-state；The velcro is conductive velcro.
Optionally, the edge of the sack of the bag body is provided with conductive zippers, and the conductive zippers include two panels conduction
Chain belt, in the edge of the sack, the composite layer has the part that exceeds beyond the encapsulated layer, described beyond in part
Low-melting-point metal be solid-state, the every conductive chain band with it is corresponding it is described beyond part connect.
Optionally, the shielded layer further includes the first conductive layer between the adhesive layer and the composite layer,
And/or the second conductive layer between the encapsulated layer and the composite layer.
Optionally, the filler further includes shielding filler, and the shielding filler is used for armoured magnetic field and/or electric field.
Optionally, the bag body includes the first film layer and the second film layer that edge mutually bonds, first film layer and institute
It states between the second film layer filled with metal layer, the material of the metal layer is that fusing point is higher than room temperature and low lower than 100 degrees Celsius
Melting point metals.
Optionally, the ratio between the thickness of the metal layer and the thickness of first film layer is 1: 3~1: 1；It is described
Metal layer with a thickness of 1~2mm.
Optionally, the material of first film layer is silica gel, UV epoxy acrylate, UV urethane acrylate, UV gather
Ether acrylate, UV polyester acrylate, UV unsaturated polyester (UP), polydimethylsiloxane, flexibility polyacrylic acid, the poly- ammonia of flexibility
One of ester, acrylic acid-polyurethane, polytetrafluoroethylene (PTFE), fluoroolefins and vinyl ethers copolymer resins, fluorine silicon resin；Described
The material of two film layers is silica gel, UV epoxy acrylate, UV urethane acrylate, UV polyether acrylate, UV polyester
Acid esters, UV unsaturated polyester (UP), polydimethylsiloxane, flexibility polyacrylic acid, flexibility polyurethane, acrylic acid-polyurethane, poly- four
One of vinyl fluoride, fluoroolefins and vinyl ethers copolymer resins, fluorine silicon resin.
Optionally, the bag body includes substrate, and is detachably set to multiple flexible pipes on the inside of the substrate, described
Low-melting-point metal of the fusing point higher than room temperature and lower than 100 degrees Celsius is filled in flexible pipe.
A kind of electromagnetic shielding bag provided by the utility model, the electromagnetic shielding bag include bag body, shielded layer and encapsulated layer, screen
Covering layer includes along the adhesive layer and composite layer set gradually far from bag body direction, and composite layer includes that conductive silk screen and being filled in is led
Filler in the gap of electrical filament net, filler include low-melting-point metal, and the conductive silk screen in composite layer can effectively shield electricity
Low frequency signal and intermediate-freuqncy signal in magnetic wave, the specially signal of 10kHz~30MHz rank, the low-melting-point metal in filler
The intermediate-freuqncy signal and high-frequency signal in electromagnetic wave, the specially signal of 30MHz~40GHz, and shielding electricity can effectively be shielded
Low frequency signal and intermediate-freuqncy signal in magnetic wave are electromagnetically shielded electromagnetic shielding bag effectively to the article in bag.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is
Some embodiments of the utility model, for those of ordinary skill in the art, in the premise of not making the creative labor property
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of electromagnetic shielding bag provided by the embodiment of the utility model；
Fig. 2 is schematic cross-section one of the Fig. 1 provided by the embodiment of the utility model along the direction AA '；
Fig. 3 is the structural schematic diagram one of sack provided by the embodiment of the utility model；
Fig. 4 is the structural schematic diagram two of sack provided by the embodiment of the utility model；
Fig. 5 is schematic cross-section two of the Fig. 1 provided by the embodiment of the utility model along the direction AA '；
Fig. 6 is the structural schematic diagram one of bag body provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram two of bag body provided in an embodiment of the present invention.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
It should be noted that each technical characteristic in the utility model embodiment can be mutual in the absence of conflict
In conjunction with.
The utility model embodiment provides a kind of electromagnetic shielding bag, and specifically, as depicted in figs. 1 and 2, Fig. 1 is that this is practical
The structural schematic diagram for the electromagnetic shielding bag that new embodiment provides, Fig. 2 are Fig. 1 provided by the embodiment of the utility model along the side AA '
To schematic cross-section one, electromagnetic shielding bag include bag body 1, shielded layer 2 and encapsulated layer 3, wherein shielded layer 2 is located at bag body 1
Inside, encapsulated layer 3 are located at side of the shielded layer 2 far from bag body 1, and shielded layer 2 includes along the glue set gradually far from 1 direction of bag body
Adhensive layer 21 and composite layer 22, composite layer 22 include the filler that conduction silk screen 221 and is filled in the gap of conductive silk screen 221
222, filler 222 includes low-melting-point metal.Encapsulated layer 3 is not shown in Fig. 1.
It should be noted that unless otherwise specified, the fusing point of low-melting-point metal is lower than 300 in the utility model embodiment
Degree Celsius.
Wherein, bag body 1 mainly plays carrying；Adhesive layer 21 is mainly used for improving the attachment of composite layer 22 and bag body 1
Power；Composite layer 22 is mainly used for shielding electromagnetic wave；Encapsulated layer 3 is mainly used for being packaged composite layer 22, prevents conductive silk screen
221 and filler 222 because with the external world contact due to caused by oxidation, corrosion or damage.
In the electromagnetic shielding bag, the conductive silk screen 221 in composite layer 22 can effectively shield the low frequency signal in electromagnetic wave
And intermediate-freuqncy signal, the specially signal of 10kHz~30MHz rank, the low-melting-point metal in filler 222 can effectively shield electricity
Low frequency letter in intermediate-freuqncy signal and high-frequency signal in magnetic wave, the specially signal of 30MHz~40GHz, and shielding electromagnetic wave
Number and intermediate-freuqncy signal, allow electromagnetic shielding bag the article in bag is effectively electromagnetically shielded.
Electromagnetic shielding bag in the utility model embodiment can be applied to mobile phone, electronic component (such as printed circuit
Plate, light emitting diode etc.) etc. packaging or storage.
In actual use, the sack of bag body 1 can be sealed, to prevent from being placed in electromagnetic shielding bag
Article drops out, and the utility model embodiment provides the mode of following two sack sealing:
In one example, as shown in figure 3, Fig. 3 is the structural schematic diagram one of sack provided by the embodiment of the utility model,
Velcro 4 is provided on the inside of the sack of bag body 1, wherein velcro 4 includes hook surface 41 and the hair side to match with hook surface 41
42, so that being sealed by the hook surface 41 of velcro 4 and the fitting of hair side 42, and then to electromagnetic shielding bag, prevent in bag
Article drop out.Further, it is selected in the utility model embodiment, along the circumferential direction of sack, hook surface 41 and 42 head and the tail of hair side connect
It connects, so that all positions of sack can be sealed, sealing effect is good.
In this example, it is preferable that it is provided with opening on encapsulated layer 3, is open corresponding with 4 position of velcro, and
Low-melting-point metal at aperture position in composite layer 22 is solid-state, and velcro 4 is conductive velcro, so that the hook of velcro 4
After face 41 and hair side 42 are bonded to each other, each position of the composite layer 22 on the inside of sack is electrically connected to each other, can be to avoid electromagnetic wave
Enter in electromagnetic shielding bag from sack, helps to improve the shield effectiveness of electromagnetic shielding bag.Wherein, composite layer 22 at aperture position
Interior low-melting-point metal be it is solid the reason is that, solid low-melting-point metal will not be revealed from the opening of encapsulated layer 3, do not allow
Easily cause pollution and the decline of effectiveness.
In another example, as shown in figure 4, Fig. 4 is the structural schematic diagram of sack provided by the embodiment of the utility model
Two, the edge of the sack of bag body 1 is provided with zipper 5, and then can simply and easily seal to electromagnetic shielding bag, prevents
Article in bag drops out.Further, it is selected in the utility model embodiment, zipper 5 is conductive zippers, and conductive zippers include two
Piece conductive chain band, in the edge of sack 1, composite layer 22, which has, exceeds part beyond encapsulated layer 3, beyond the eutectic in part
Point metal is solid-state, and every conductive chain band is connected with corresponding beyond part, so that after conductive zippers are pulled on, sack side
Each position of composite layer 22 at edge position is electrically connected to each other, and can be entered in electromagnetic shielding bag to avoid electromagnetic wave from sack,
Help to improve the shield effectiveness of electromagnetic shielding bag.It wherein, is solid the reason is that, solid beyond the low-melting-point metal in part
The low-melting-point metal of state will not be revealed, it is not easy to pollute and the decline of effectiveness.
Optionally, the material of bag body 1 be textile, rubber, flexible plastic film, paper, non-woven fabrics, etc. one of.Glue
The material of adhensive layer 21 includes epoxy resin, unsaturated polyester (UP) class, polyurethanes, polyvinyl alcohol glue class, polyvinylpyrrolidine
One of ketone glue class, acrylic size class, vinyl acetate resin glue class are a variety of.In addition, inventor has found adhesive layer
21 thickness on electromagnetic shielding bag performance have certain influence, the thickness of adhesive layer 21 is too small, then can make composite layer 22 with
Attachment between bag body 1 is insecure, and the thickness of adhesive layer 21 is excessive, then can make flexible bad, the electromagnetism of adhesive layer 21
The flexibility of shielding bag is bad.Based on this, in the utility model embodiment select adhesive layer 21 with a thickness of 1~20 μm.
Optionally, the conductive silk screen 221 that composite layer 22 includes is brass screen, red copper net, stainless (steel) wire, nickel screen, iron net, silver
Net, tin net, permalloy net, tinning steel-in-copper net or tin-coated copper plated aluminium net etc..Optionally, the string diameter of conductive silk screen 221 is 5
μm~1000 μm.Conductive silk screen 221 with a thickness of 10 μm~2000 μm.The mesh number of conductive silk screen 221 is 2 mesh~2000 mesh.
Inventors have found that string diameter, mesh number and the thickness of conductive silk screen 221 also have a fixing to the performance of electromagnetic shielding bag
It rings.Specifically, the string diameter of conductive silk screen 221 is excessive, and the thickness of conductive silk screen 221 is excessive, and the thickness of composite layer 22 is excessive, electromagnetism
The flexibility of shielding bag filler more than 222 that is bad, and needing, at high cost, the string diameter of conductive silk screen 221 is too small, conductive silk screen 221
Thickness it is too small, the thickness of composite layer 22 is too small, and the effectiveness for being electromagnetically shielded bag is bad, be based on this, the utility model
The string diameter of conductive silk screen 221 is preferably 30 μm~200 μm in embodiment.The thickness of conductive silk screen 221 is about conductive silk screen 221
2 times or so of string diameter, the string diameter phase of influence and conductive silk screen 221 of the thickness of conductive silk screen 221 to the performance for being electromagnetically shielded bag
Together, the thickness of conductive silk screen 221 is preferably 60 μm~400 μm in the utility model embodiment.The mesh number mistake of conductive silk screen 221
Greatly, the gap of conductive silk screen 221 is too small, and the amount for the filler 222 that can be filled is very little, and effectiveness is bad, conductive filament
The mesh number of net 221 is too small, and the gap of conductive silk screen 221 is excessive, bad to the shield effectiveness of low frequency signal, is based on this, this is practical
The mesh number of conductive silk screen 221 is preferably 30 mesh~300 mesh in new embodiment.
Since composite layer 22 includes the filler 222 that conduction silk screen 221 and is filled in the gap of conductive silk screen 221, because
This, the consistency of thickness of the thickness of composite layer 22 and conductive silk screen 3, i.e., composite layer 22 with a thickness of 10 μm~2000 μm, preferably
60 μm~400 μm.
Optionally, the fusing point for the low-melting-point metal being electromagnetically shielded in the filler 222 that composite layer 22 includes in bag is taken the photograph 300
Within family name's degree, specifically, the fusing point of the low-melting-point metal in filler 222 can be in room temperature hereinafter, or in room temperature to 300
Between degree Celsius, when the fusing point of the low-melting-point metal in filler 222 is below room temperature, low-melting-point metal is liquid at room temperature
State so that the method for preparation electromagnetic shielding bag is relatively simple, and is electromagnetically shielded bag and can have preferable flexibility, and low melting point gold
The conductivity of category is high, and effectiveness is good, the fusing point of the low-melting-point metal in filler 222 room temperature to 300 degrees Celsius it
Between when, the selection of low-melting-point metal is relatively broad, and low-melting-point metal is solid-state at room temperature, low melting point can be made golden by heating
Category is molten into liquid, and then is used to prepare electromagnetic shielding bag.
Preferably, the low-melting-point metal in filler 222 is gallium-indium alloy or gallium-indium-tin alloy, and conductive silk screen 221 is
Brass screen or red copper net, at this point, the gallium and indium in low-melting-point metal in filler 222 can be with the copper in conductive silk screen 221
It reacts at room temperature, the compound layer with certain thickness (20nm~1000nm) is generated, so that filler 222 can be more preferable
Ground is attached on conductive silk screen 221, and is preferably filled in the gap of conductive silk screen 221.
Optionally, filler 222 further includes shielding filler, which is used for armoured magnetic field and/or electric field, that is, shields
Filler can be only used for armoured magnetic field, alternatively, shielding filler can be only used for shielding electric field, alternatively, shielding filler can be simultaneously
For armoured magnetic field and shielding electric field.
Wherein, the shielding filler in low-melting-point metal that filler 222 includes is excessive, and shielding filler can be made more difficult in liquid
It is uniformly dispersed in the low-melting-point metal of state, and cost is excessively high, the shielding filler mistake in the low-melting-point metal that filler 222 includes
It is few, shield effectiveness can be made bad, be based on this, the low-melting-point metal for selecting filler 222 to include in the utility model embodiment
The weight percent of middle shielding filler is 5~40%.
Optionally, shielding filler includes iron powder, nickel powder, permalloy powder, ferrite powder, amorphous alloy powder, bronze, platinum
One or more of powder, silver powder, copper powder, conductive black, electrically conductive graphite, nickel coated graphite powder, silver-coated copper powder, silver coated nickel powder.Its
In, iron powder, nickel powder, permalloy powder, ferrite powder, amorphous alloy powder are mainly used for armoured magnetic field, bronze, platinum powder, silver powder, copper
Powder, conductive black, electrically conductive graphite, nickel coated graphite powder, silver-coated copper powder, silver coated nickel powder are mainly used for shielding electric field.Optionally, it shields
The partial size of filler is 1nm~100 μm.
In one example, filler is shielded as one in iron powder, nickel powder, permalloy powder, ferrite powder, amorphous alloy powder
Kind is several, and the weight percent that filler is shielded in the low-melting-point metal that filler 222 includes is 5~15%；In another example
In son, shielding filler is bronze, platinum powder, silver powder, copper powder, conductive black, electrically conductive graphite, nickel coated graphite powder, silver-coated copper powder, Yin Bao
One or more of nickel powder, the weight percent that filler is shielded in the low-melting-point metal that filler 222 includes is 10~40%.
In addition, the addition of shielding filler (such as nickel powder) can also improve the viscosity of filler 222, help to prevent filler
222 along conductive silk screen 221 to flow down.
Optionally, in the utility model embodiment, the material of encapsulated layer 3 includes UV epoxy acrylate, UV polyurethane third
Olefin(e) acid ester, UV polyether acrylate, UV polyester acrylate, UV unsaturated polyester (UP), polydimethylsiloxane, flexibility polypropylene
One or more of acid, flexibility polyurethane, so that encapsulated layer 3 has preferable packaging effect and preferable flexibility.It can
Selection of land, encapsulated layer 3 with a thickness of 100 μm hereinafter, so that encapsulated layer 3 have it is preferable flexible.
Optionally, as shown in figure 5, Fig. 5 is schematic cross-section of the Fig. 1 provided by the embodiment of the utility model along the direction AA '
Two, shielded layer 2 further includes the first conductive layer 23 between adhesive layer 21 and composite layer 22, and/or, it is located at encapsulated layer 3
The second conductive layer 24 between composite layer 22, i.e. shielded layer 2 further include between adhesive layer 21 and composite layer 22
One conductive layer 23, alternatively, shielded layer 2 further includes the second conductive layer 24 between encapsulated layer 3 and composite layer 22, alternatively, screen
Covering layer 2 further includes the first conductive layer 23 between adhesive layer 21 and composite layer 22, and is located at encapsulated layer 3 and composite layer
The second conductive layer 24 between 22.
Inventors have found that may be fully filled in the presence of object 222 is not filled in the conductive silk screen 221 of composite layer 22
Gap influences the shield effectiveness for being electromagnetically shielded bag, and the first conductive layer 23 and/or the second conductive layer 24 not only can inherently rise
To the effect of electromagnetic shielding, and above-mentioned gap can also be adequately filled up, further improve the shield effectiveness of electromagnetic shielding bag.
Illustratively, the first conductive layer 23 can be by conductive silver paste, conductive copper paste, conductive carbon paste, conductive silicone grease, low melting point gold
It is formed after the composite material solidification of category or low-melting-point metal and shielding filler；Second conductive layer 24 can also by conductive silver paste, lead
Shape after the composite material solidification of electrolytic copper slurry, conductive carbon paste, conductive silicone grease, low-melting-point metal or low-melting-point metal and shielding filler
At.The particular content of the above shielding filler can be found in the particular content for the shielding filler that filler 222 includes, herein no longer into
Row repeats.
Preferably, the first conductive layer 23 is solidified by the composite material of low-melting-point metal or low-melting-point metal and shielding filler
After formed, and the low-melting-point metal in the first conductive layer 23 is identical as the low-melting-point metal that filler 222 includes, similarly,
Two conductive layers 24 after low-melting-point metal or low-melting-point metal and the composite material solidification of shielding filler by forming, and second is conductive
Low-melting-point metal in layer 24 is identical as the low-melting-point metal that filler 222 includes, so that the first conductive layer 23 and/or second
Good compatibility between conductive layer 24 and composite layer 22, almost without the functional of contact interface or contact interface, so that electric
The structural stability of magnetic screen bag is good.
Optionally, the thickness of the first conductive layer 23 and the second conductive layer 24 is at 200 μm or less.Wherein, the first conductive layer
23 and second conductive layer 24 thickness also can to electromagnetic shielding bag performance have an impact, specifically, the first conductive layer 23 or the
The thickness of two conductive layers 24 is too small, the effectiveness for being electromagnetically shielded bag can be made bad, the first conductive layer 23 or the second is led
The thickness of electric layer 24 is excessive, and the thickness for being electromagnetically shielded bag can be made larger, flexible bad, and higher cost, is based on this, first leads
The thickness of electric layer 23 is preferably 20~100 μm；The thickness of second conductive layer 24 is preferably 20~100 μm.
Optionally, as shown in fig. 6, Fig. 6 is the structural schematic diagram one of bag body provided in an embodiment of the present invention, bag body 1 includes
The first film layer 11 and the second film layer 12 that edge mutually bonds are filled with metal layer between the first film layer 11 and the second film layer 12
13, the material of metal layer 13 is that fusing point is higher than room temperature and is lower than 100 degrees Celsius of low-melting-point metal, so that the shape of bag body 1 can
To be changed according to actual needs.It is specific that change process as follows: bag body 1 is heated (such as blown with hair dryer or will
Bag body 1 is placed in hot water), so that the fusing of metal layer 13 therein is in a liquid state, the shape of bag body 1 is changed into target shape, so
After keep bag body 1 cooling, bag body 1 after cooling has required target shape.
Optionally, the ratio between the thickness of metal layer 13 and the thickness of the first film layer 11 is 1: 3~1: 1, metal layer 13
With a thickness of 1~2mm so that the intensity of metal layer 13 can maintain bag body 1 to have a target shape, and the thickness of bag body 1 and
Cost is smaller.
Optionally, the material of the first film layer 11 is silica gel, UV epoxy acrylate, UV urethane acrylate, UV polyethers
Acrylate, UV polyester acrylate, UV unsaturated polyester (UP), polydimethylsiloxane, flexibility polyacrylic acid, the poly- ammonia of flexibility
One of ester, acrylic acid-polyurethane, polytetrafluoroethylene (PTFE), fluoroolefins and vinyl ethers copolymer resins, fluorine silicon resin；Second film
The material of layer 12 is silica gel, UV epoxy acrylate, UV urethane acrylate, UV polyether acrylate, UV polyester acrylic
Ester, UV unsaturated polyester (UP), polydimethylsiloxane, flexibility polyacrylic acid, flexibility polyurethane, acrylic acid-polyurethane, polytetrafluoro
One of ethylene, fluoroolefins and vinyl ethers copolymer resins, fluorine silicon resin.
Optionally, as shown in fig. 7, Fig. 7 is the structural schematic diagram two of bag body provided in an embodiment of the present invention, bag body 1 includes
Substrate 14, and be detachably set to multiple flexible pipes 15 on the inside of substrate, fusing point is filled in flexible pipe 15 higher than room temperature and
Low-melting-point metal lower than 100 degrees Celsius can also be such that the shape of bag body 1 is changed according to actual needs.Specifically change
Change process is as follows: being heated (such as blown with hair dryer or bag body 1 is placed in hot water) to bag body 1, makes flexible pipe 15
In low-melting-point metal fusing be in a liquid state, the shape of flexible pipe 15 is changed, makes the shape target shape of bag body 1, so
After keep bag body 1 cooling, the low-melting-point metal solidification in flexible pipe 15, bag body 1 after cooling has required target shape.This
Kind of mode is compared with the mode of the change shape of the foregoing description, and the structure of bag body is relatively simple, lighter in weight, but shape is changeable
Property mode not as described above, those skilled in the art can select according to actual needs.
The utility model embodiment provides a kind of electromagnetic shielding bag, which includes bag body, shielded layer and envelope
Fill layer, shielded layer include along the adhesive layer and composite layer set gradually far from bag body direction, composite layer include conductive silk screen and
The filler being filled in the gap of conductive silk screen, filler include low-melting-point metal, and the conductive silk screen in composite layer can have
Effect shields low frequency signal and intermediate-freuqncy signal in electromagnetic wave, the specially signal of 10kHz~30MHz rank, low in filler
Melting point metals can effectively shield intermediate-freuqncy signal and high-frequency signal in electromagnetic wave, the specially signal of 30MHz~40GHz, with
And low frequency signal and intermediate-freuqncy signal in shielding electromagnetic wave, electromagnetic shielding bag is carried out to the article in bag effectively electric
Magnetic screen.
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 electromagnetic shielding bag, which is characterized in that including bag body, shielded layer and encapsulated layer, wherein the shielded layer is located at institute
The inside of bag body is stated, the encapsulated layer is located at side of the shielded layer far from the bag body, and the shielded layer includes along separate
The adhesive layer and composite layer that the bag body direction is set gradually, the composite layer include conductive silk screen and are filled in the conduction
Filler in the gap of silk screen, the filler include low-melting-point metal.
2. electromagnetic shielding bag according to claim 1, which is characterized in that be provided with magic on the inside of the sack of the bag body
Patch, wherein the velcro includes hook surface and the hair side that matches with the hook surface, along the circumferential direction of the sack, the hook surface
It is connected with the hair side head and the tail.
3. electromagnetic shielding bag according to claim 2, which is characterized in that opening is provided on the encapsulated layer, it is described to open
Mouth is corresponding with the velcro position, and the low-melting-point metal at the aperture position in the composite layer is solid-state；
The velcro is conductive velcro.
4. electromagnetic shielding bag according to claim 1, which is characterized in that the edge of the sack of the bag body, which is provided with, leads
Electric zipper, the conductive zippers include two panels conductive chain band, and in the edge of the sack, the composite layer has beyond described
Encapsulated layer exceeds part, and the low-melting-point metal beyond in part is solid-state, the every conductive chain band with it is corresponding
It is described to be connected beyond part.
5. electromagnetic shielding bag according to claim 1, which is characterized in that the shielded layer further includes being located at the adhesive
The first conductive layer between layer and the composite layer, and/or, second between the encapsulated layer and the composite layer is conductive
Layer.
6. electromagnetic shielding bag according to claim 1, which is characterized in that the filler further includes shielding filler, described
It shields filler and is used for armoured magnetic field and/or electric field.
7. electromagnetic shielding bag according to claim 1, which is characterized in that the bag body includes first that edge mutually bonds
Film layer and the second film layer, are filled with metal layer between first film layer and second film layer, the material of the metal layer is
Fusing point is higher than room temperature and is lower than 100 degrees Celsius of low-melting-point metal.
8. electromagnetic shielding bag according to claim 7, which is characterized in that the thickness of the metal layer and first film layer
Thickness between ratio be 1: 3~1: 1；The metal layer with a thickness of 1~2mm.
9. electromagnetic shielding bag according to claim 7 or 8, which is characterized in that the material of first film layer is silica gel, UV
Epoxy acrylate, UV urethane acrylate, UV polyether acrylate, UV polyester acrylate, UV unsaturated polyester (UP), poly- two
Methyl-monosilane, flexibility polyacrylic acid, flexibility polyurethane, acrylic acid-polyurethane, polytetrafluoroethylene (PTFE), fluoroolefins and vinyl
One of ether copolymer resins, fluorine silicon resin；The material of second film layer is silica gel, UV epoxy acrylate, UV polyurethane
Acrylate, UV polyether acrylate, UV polyester acrylate, UV unsaturated polyester (UP), polydimethylsiloxane, flexibility polypropylene
In acid, flexibility polyurethane, acrylic acid-polyurethane, polytetrafluoroethylene (PTFE), fluoroolefins and vinyl ethers copolymer resins, fluorine silicon resin
One kind.
10. electromagnetic shielding bag according to claim 1, which is characterized in that the bag body includes substrate, and is detachably set
The multiple flexible pipes being placed on the inside of the substrate are filled with fusing point in the flexible pipe higher than room temperature and lower than 100 degrees Celsius
Low-melting-point metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821527993.8U CN209489094U (en) | 2018-09-18 | 2018-09-18 | A kind of electromagnetic shielding bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821527993.8U CN209489094U (en) | 2018-09-18 | 2018-09-18 | A kind of electromagnetic shielding bag |
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| Publication Number | Publication Date |
|---|---|
| CN209489094U true CN209489094U (en) | 2019-10-11 |
Family
ID=68113847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821527993.8U Active CN209489094U (en) | 2018-09-18 | 2018-09-18 | A kind of electromagnetic shielding bag |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109068556A (en) * | 2018-09-18 | 2018-12-21 | 北京梦之墨科技有限公司 | A kind of electromagnetic shielding bag |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109068556A (en) * | 2018-09-18 | 2018-12-21 | 北京梦之墨科技有限公司 | A kind of electromagnetic shielding bag |
| CN109068556B (en) * | 2018-09-18 | 2024-07-26 | 北京梦之墨科技有限公司 | Electromagnetic shielding bag |
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