CN110418562A - A kind of shielding case and electronic equipment - Google Patents
A kind of shielding case and electronic equipment Download PDFInfo
- Publication number
- CN110418562A CN110418562A CN201910532760.XA CN201910532760A CN110418562A CN 110418562 A CN110418562 A CN 110418562A CN 201910532760 A CN201910532760 A CN 201910532760A CN 110418562 A CN110418562 A CN 110418562A
- Authority
- CN
- China
- Prior art keywords
- shielding case
- cover
- insulating body
- circuit board
- electric elements
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/002—Casings with localised screening
- H05K9/0022—Casings with localised screening of components mounted on printed circuit boards [PCB]
- H05K9/0024—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
This application provides a kind of shielding case and electronic equipment, shielding case includes cover, for providing function of shielding for electric elements；The cover can be an integral molding structure；Wherein, the material of the cover includes insulating body and the conductive fiber that is dispersed in the insulating body, and the conductive fiber forms the reticular structure of faraday cup effect in the insulating body.In shielding case provided by the embodiments of the present application, cover selects the composite material of insulating materials and conductive fiber；Therefore, it not will cause situations such as electric elements are short-circuit when being contacted with electric elements, while function of shielding can also be provided for electric elements, when being made, Shooting Technique can be used, cover is formed, so as to improve the flexibility of design and production.
Description
Technical field
This application involves technical field of electronic equipment more particularly to a kind of shielding cases and electronic equipment.
Background technique
With the continuous development of scientific and technological level, the power and process performance of electronic equipment are obviously improved；But
With the continuous promotion of electronic equipment performance, shielding properties also gradually faces more challenges.
It takes the mobile phone as an example, a large amount of electric elements is generally included in mobile phone, wherein electric elements specifically include that processor
(central processing unit, CPU), positioning system (global positioning system, GPS), inductor
(components such as (inductor)；In order to avoid generating electromagnetic interference between each electric elements, would generally be arranged in traditional mobile phone
Shielding case, with to carrying out shielding isolation between each electric elements.
Wherein, traditional shielding case generally comprises metal cover body, to realize function of shielding；In addition, electric appliance is first in order to prevent
Situations such as part causes short circuit after contacting with shielding case, shielding case generally further include the insulating film for being covered in metal cover body surface；System
The process is more complicated for work, the higher operating costs of material.
Summary of the invention
This application provides a kind of shielding cases and electronic equipment light, low in cost, convenient for production.
Specifically, one side the embodiment of the present application provides a kind of shielding case, including cover；Cover can be integrally formed
Structure；The material of cover includes insulating body and the conductive fiber that is dispersed in insulating body, and conductive fiber is in insulating body
The interior reticular structure for forming faraday cup effect, to provide electro-magnetic screen function.Specifically, cover itself is provided simultaneously with screen
It covers and therefore insulation performance can provide function of shielding for electric elements；When being contacted with electric elements, will not lead
The generation for a problem that sending a telegraph device element short, therefore, the compactedness being able to ascend between shielding case and electric elements.
In shielding case provided by the embodiments of the present application, cover selects the composite material of insulating materials and conductive fiber；Therefore,
When being made, Shooting Technique can be used, cover is formed, so as to improve the flexibility of design and production.Specifically
For, the composite material of insulating materials and conductive fiber can carry out efficient, high quality processing by injection molding apparatus, and
The more complicated structure of shape can also be easily produced, cost of manufacture can be reduced, and effectively promote producing efficiency.Another party
Face, for the shielding case of same size profile, compared with the shielding case of traditional metal material, the shielding case of the embodiment of the present application
With lighter weight, therefore, it is advantageously implemented the light-weight design of electronic equipment.
In the specific implementation, the material of insulating body may include polycarbonate, acrylonitrile, butadiene, styrene, poly- third
At least one of alkene, Fypro.The material of conductive fiber includes at least one of aluminium, copper, iron, stainless steel.Certainly,
The material of insulating body is not limited in including above-mentioned cited material；Correspondingly, conductive fiber is also not limited to comprising upper
State cited material.
In some embodiments, in order to reduce the weight and space hold amount of shielding case, shielding case can be
Plate structure with cavity.Specifically, shielding case is the thin-wall construction for being formed with cavity, and cavity can accommodate electric appliance member
Part, to provide function of shielding for electric elements.
In view of in practical applications, electric elements are generally arranged on circuit board, therefore, when shielding case is located at electric appliance
Behind element periphery, the opening of cavity can be bonded with circuit board.In order to increase the contact area between shielding case and circuit board, promoted
Connective stability between shielding case and circuit board, and prevent electromagnetic signal from overflowing in the gap between cover and circuit board
Out；In one embodiment provided by the present application, the edge of the opening of cover has flange.Circuit board is fastened in shielding case
After upper, flange is bonded with the plate face of circuit board, then can realize consolidating between shielding case and circuit board using techniques such as welding
Fixed connection.
In addition, in order to enable single shielding case can provide function of shielding to multiple electric elements, provided by the present application
In a kind of embodiment, shielding case further includes partition, and partition is arranged in cavity multiple independent small for cavity to be separated into
Chamber, each independent small chamber can be located at the periphery of single electric elements, for providing function of shielding to electric elements.
With this, single shielding case can provide function of shielding simultaneously for multiple electric elements；So as to save the usage amount of shielding case,
And promote assembly efficiency.
In the specific implementation, cover can be an integral molding structure with partition；Specifically, entire shielding case can use
Injection molding process is made, so as to promote producing efficiency；It certainly, can be right according to actual needs in specific production
The position of partition, quantity are adaptively adjusted, with the suitability between promotion and electric elements.
In addition, promoting the company between shielding case and circuit board to increase the contact area between shielding case and circuit board
Stability is connect, and prevents electromagnetic signal from overflowing in the gap between partition and circuit board；In a reality provided by the present application
It applies in example, partition has flange away from the edge of the bottom of cavity.After shielding case fastens on circuit boards, flange and circuit board
Plate face fitting, then can realize being fixedly connected between shielding case and circuit board using techniques such as welding.
On the other hand, the embodiment of the present application also provides a kind of electronic equipment, including circuit board, are installed on circuit board
The shielding case of electric elements and any one of the above；Shielding case is arranged on circuit boards, and is located at circuit element at least
Part periphery, for providing function of shielding for electric elements.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of shielding case provided by the embodiments of the present application；
Fig. 2 is a kind of enlarged drawing of the material component of shielding case provided by the embodiments of the present application；
Fig. 3 is the structural schematic diagram of another shielding case provided by the embodiments of the present application；
Fig. 4 is the cross-sectional view of another shielding case provided by the embodiments of the present application；
Fig. 5 is the partial enlarged view of Fig. 4；
Fig. 6 is the structural schematic diagram of another shielding case provided by the embodiments of the present application；
Fig. 7 is the cross-sectional view of another shielding case provided by the embodiments of the present application；
Fig. 8 is the partial enlarged view of Fig. 7；
Fig. 9 is the structural schematic diagram of another shielding case provided by the embodiments of the present application；
Figure 10 is the structural schematic diagram of another shielding case provided by the embodiments of the present application；
Figure 11 is the cross-sectional view of another shielding case and circuit board provided by the embodiments of the present application；
Figure 12 is the exploded view of a kind of electronic equipment provided by the embodiments of the present application；
Figure 13 is the structural schematic diagram of circuit board and shielding case in a kind of electronic equipment provided by the embodiments of the present application.
Specific embodiment
In order to facilitate shielding case provided by the embodiments of the present application is understood, its application scenarios is introduced first below.This Shen
Please the shielding case that provides of embodiment should can be in the electronic device, for providing shielding function to the electric elements in electronic equipment
Can, to prevent the electromagnetic interference for being shielded electric elements by other electric elements, or electromagnetism is generated to other electric elements and is done
It disturbs.Wherein, electric elements specifically can be, but not limited to comprising processor (central processing unit, CPU), positioning
System (global positioning system, GPS), inductor ((inductor) etc..
Nowadays the arrangement of electric elements is more and more intensive in electronic equipment, and therefore, the performance requirement of shielding case is also got over
Come stringenter；For example, shielding case is required to meet miniaturization, light-weight design, can be mounted in narrow space, together
When, it can not significantly promote the overall weight of electronic equipment.Traditional shielding case is generally made of metal material, and is located at
The periphery of electric elements provides function of shielding for electric elements；In order to avoid shielding case is bad to electric elements generation short circuit etc.
It influences, certain gap would generally be kept between shielding case and electric elements.But with the Miniaturization Design of electronic equipment,
It needs to reduce the gap even being eliminated between shielding case and electric elements as far as possible in industry.For this purpose, some shielding cases are being made
When making, insulating film is pasted on the surface of metal cover body, electric elements are generated after being contacted to avoid shielding case with electric elements short
The adverse effects such as road.But such a structure increases the cost of manufacture of shielding case and difficulty.Specifically, it is carried out to shielding case
When production, need first to form metal cover body, then using spray, paste etc. techniques the production of the surface of metal cover body absolutely
Velum layer.Therefore, relatively complicated on production process, while also to guarantee that insulating film layer can firmly be covered in metal cover body
Surface, production requires more harsh, higher cost.It, can be using works such as casting, punching presses when being made to metal cover body
Skill.But it when being made of pouring technology to metal cover body, is restricted by metal material performance itself, is difficult to produce thickness
Lesser metal cover body is spent, therefore, is unfavorable for miniaturization, the light-weight design of shielding case.Using Sheet Metal Forming Technology to metal cover body
When being made, it is difficult to produce complex-shaped, structure special-shaped metal cover body, therefore, the scope of application is lower.
Based on bad problem present in above-mentioned shielding case, the embodiment of the present application provides a kind of light, low in cost, just
In production, it is able to satisfy the shielding case of complicated shape demand.In order to keep the purposes, technical schemes and advantages of the application clearer,
The application is described in further detail below in conjunction with attached drawing.
Term used in following embodiment is intended merely to for the purpose of describing particular embodiments, and is not intended as pair
The limitation of the application.As the description of the present application and it is used in the attached claims, odd number expression form " one
It is a ", "an", " above-mentioned ", "the" and " this " be intended to also include such as " one or more " this expression-form, unless thereon
Hereinafter clearly there is opposite instruction.It is also understood that in the following embodiment of the application, "at least one", " one or more
It is a " refer to one, two or more.Term "and/or", for describing the incidence relation of affiliated partner, expression can be deposited
In three kinds of relationships；The case where for example, A and/or B, can indicate: individualism A exists simultaneously A and B, individualism B, wherein
A, B can be odd number or plural number.Character "/" typicallys represent the relationship that forward-backward correlation object is a kind of "or".
The reference " one embodiment " described in the present specification or " some embodiments " etc. mean the one of the application
It include special characteristic, structure or the feature in conjunction with embodiment description in a or multiple embodiments.As a result, in the present specification
The sentence " in one embodiment " of difference appearance, " in some embodiments ", " in some other embodiment ", " In
In other embodiment " etc. it is uninevitable all referring to identical embodiment, mean " one or more but not all
Embodiment ", only otherwise in addition especially emphasize.The terms "include", "comprise", " having " and their deformation are all
Mean " including but not limited to ", only otherwise in addition especially emphasizes.
As shown in Figure 1, shielding case 100 includes cover 110 in one embodiment provided by the present application；Cover 110 is configured to
Integrated formed structure.Please refer to Fig. 2, the material of cover 110 includes insulating body 111 and is dispersed in insulating body 111
Interior conductive fiber 112, conductive fiber 112 form the reticular structure of faraday cup effect in insulating body 111, so as to
Electro-magnetic screen function is provided.Specifically, continuous access can not be formed on the surface of cover 110 due to conductive fiber 112,
Therefore, cover 110 has insulating properties；In addition, conductive fiber 112 is capable of forming faraday cup effect in insulating body 111
Therefore reticular structure can form the effect for hindering, absorbing to electromagnetic signal, cover 110 is finally made to be provided simultaneously with screen in itself
It covers and insulation performance.Therefore, function of shielding can be provided for electric elements；When being contacted with electric elements, will not lead
The generation for a problem that sending a telegraph device element short, therefore, the compactedness being able to ascend between shielding case 100 and electric elements.
In shielding case 100 provided by the embodiments of the present application, cover 110 selects the composite wood of insulating materials and conductive fiber
Material；Therefore, when being made, Shooting Technique can be used, cover is formed, so as to improve the spirit of design and production
Activity.Specifically, the composite material of insulating materials and conductive fiber can be carried out efficient, high quality by injection molding apparatus
Processing, and the more complicated structure of shape can also be easily produced, preferably reduction cost of manufacture, and effectively promotion production
Efficiency.On the other hand, for the shielding case 100 of same size profile, compared with the shielding case of traditional metal material, the application
There is the shielding case of embodiment lighter weight to be therefore advantageously implemented the light-weight design of electronic equipment.
In the specific implementation, the material of insulating body 111 may include polycarbonate, acrylonitrile, butadiene, styrene,
At least one of polypropylene, Fypro.The material of conductive fiber 112 includes aluminium, copper, iron, at least one in stainless steel
Kind.Certainly, the material of insulating body 111 is not limited in including above-mentioned cited material；Correspondingly, conductive fiber 112
It is not limited only to comprising above-mentioned cited material.
In the specific implementation, the ratio of insulating materials and conductive fiber can be multiplicity in cover 110；Such as insulation material
Expect to be specifically as follows with the ratio of conductive fiber: 1:0.15；1:0.3；1:0.6；Deng.In addition, the length and thickness of conductive fiber
It can also make adaptability selection and adjustment according to different situations.
In practical applications, the structure of shielding case 100 is also possible to multiplicity.As shown in figure 3, provided by the present application one
In a embodiment, the cover 110 of shielding case 100 is configured with the plate structure of a cavity 120.Or be understood that
It is that the cover 110 of shielding case 100 is configured to form the thin-wall construction of a cavity 120.Specifically, the cover of shielding case 100
110 1 side opening of body setting, in order to which electric elements are located in cavity 120.
Certainly, as shown in figure 3, in some embodiments, shielding case 100 can also include for covering cover
The capping 130 of 110 opening.It can be attached using the modes such as welding, Nian Jie between capping 130 and cover 110, certainly,
It can also be attached using fastener (such as screw).
In the specific implementation, in order to effectively prevent electromagnetic signal to overflow from cover 110 and the seam crossing of capping 130, in cover
Step or groove structure can be set in the position that body 110 and capping 130 are in contact, to be promoted between cover 110 and capping 130
Contact area, to effectively prevent the spilling of electromagnetic signal.For example, as shown in Figure 4 and Figure 5, at one provided by the present application
In embodiment, the edge of the opening of cover 110 has step-like structure 121；Correspondingly, also having on the one side of capping 130
There is the step-like structure 131 to match with the step-like structure 121 on cover 110.
Furthermore, it is contemplated that some electric elements are typically mounted on printed circuit board (printed circuit board)；
Therefore, shielding case needs to fasten installation on circuit boards, to realize function of shielding to electric elements.In the specific implementation, cover
Opening can be fastened in the plate face of circuit board, and realized between shielding case and circuit board by the modes such as welding, being bonded
Connection.
In order to increase the contact area between cover and circuit board, the connective stability between cover and circuit board is promoted,
And prevent electromagnetic signal from overflowing in the gap between cover and circuit board.As shown in fig. 6, in a reality provided by the present application
It applies in example, the edge of the opening of cover 110 has flange 122.Specifically, as shown in Figure 7 and Figure 8, being fastened in cover 110
After on circuit board 200, flange 122 is bonded with the plate face of circuit board 200, to increase the contact between cover 110 and circuit board 200
Cotton knot；Then being fixedly connected between shielding case 100 and circuit board 200 can be realized using techniques such as welding.
Furthermore, it is contemplated that multiple electric elements may be installed densely on a printed circuit board, in order to reduce shielding case
Usage quantity while can also to multiple electric elements provide function of shielding；As shown in figure 9, in a reality provided by the present application
It applies in example, shielding case 100 further includes partition 140；Partition 140 is arranged in cavity 120, for separating cavity 120；Wherein, every
The material of plate 140 can be identical as the material of cover 110；Referring to Fig. 2, partition 140 also may include insulating body 111
And it is dispersed in the conductive fiber 112 in insulating body 111, conductive fiber 112 forms faraday cup effect in insulating body 111
The reticular structure answered, to provide electro-magnetic screen function.
Specifically, as shown in Figure 10, shielding case 100 includes cover 110 and partition 140；Partition is located at the recessed of cover 110
In chamber 120, for an entire separation of cavity 120 to be independent small chamber 120a, 120b and 120c, each independent small chamber
It can be located at the periphery of single electric elements, for providing function of shielding to electric elements.With this, single shielding case 100 can
To provide function of shielding simultaneously for multiple electric elements；So as to save the usage amount of shielding case 100, and promote assembly effect
Rate.
In specific production, cover 110 and partition 140 can be an integral molding structure, or it is understood that entire
Shielding case 100 is an integral molding structure.Shooting Technique can used to carry out injection molding to shielding case 100, to prevent cover
The shielding properties of shielding case 100 is influenced between body 110 and partition 140 there are joint gap.
In addition, as shown in Figure 10, in order to increase the contact area between partition 140 and circuit board, promoted shielding case 100 with
Connective stability between circuit board, and prevent electromagnetic signal from overflowing from the gap between partition 140 and circuit board；At this
Apply in the one embodiment provided, the edge of the bottom away from cavity 120 of partition 140 has flange 141.Such as Figure 11 institute
Show, after shielding case 100 is fastened on circuit board 200, flange 141 is bonded with the plate face of circuit board 200, then can be using weldering
It the techniques such as connects and realizes being fixedly connected between shielding case 100 and circuit board 200.
In some embodiments, shielding case can be using the welding of Surface Mount technique on circuit boards.As shown in figure 12,
In electronic equipment 300 provided by the present application, including shell 310, circuit board 200 in shell 310 and it is installed on electricity
Electric elements 320 on road plate 200, shielding case 100 is arranged on circuit board 200, and is located at the periphery of electric elements 320.
In the specific implementation, electronic equipment can be mobile phone, tablet computer, laptop, e-book etc..
As shown in figure 13, in order to realize that the welded connecting between shielding case 100 and circuit board 200, circuit board 200 are equipped with
Welding section 210；In the specific implementation, the shape contour of welding section 210 can be with the edge contour phase of the opening of shielding case 100
Together.Or in some embodiments, the profile of welding section 210 can be with the profile at the edge of the opening of shielding case 100
And the position of partition 140 matches.
In other specific embodiments, it is also possible to electric elements 320 and shielding case 100 while is welded on electricity
On road plate 200.Specifically, multiple electric elements 320 first can be placed on corresponding welding position on circuit board 200,
Then shielding case 100 is placed on corresponding welding position on circuit board 200, it is then using techniques such as Reflow Solderings that electric appliance is first
Part 320 and 100 Surface Mount of shielding case are on circuit board 200.By can preferably be mentioned using shielding case 100 provided by the embodiments of the present application
The assembly efficiency for rising electronic equipment 300, to reduce cost of manufacture and production cycle.
More than, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, and it is any to be familiar with
Those skilled in the art within the technical scope of the present application, can easily think of the change or the replacement, and should all cover
Within the protection scope of the application.Therefore, the protection scope of the application should be subject to the protection scope in claims.
Claims (10)
1. a kind of shielding case, which is characterized in that including cover；
Wherein, the material of the cover includes insulating body and the conductive fiber that is dispersed in the insulating body, described to lead
Electric fiber forms the reticular structure of faraday cup effect in the insulating body.
2. shielding case according to claim 1, which is characterized in that the material of the insulating body includes polycarbonate, third
At least one of alkene nitrile, butadiene, styrene, polypropylene, Fypro.
3. shielding case according to claim 1 or 2, which is characterized in that the material of the conductive fiber include aluminium, copper, iron,
At least one of stainless steel.
4. shielding case as claimed in any of claims 1 to 3, which is characterized in that the cover is configured with recessed
The plate structure of chamber.
5. shielding case according to claim 4, which is characterized in that the edge of the opening of the cavity has flange.
6. shielding case according to claim 4 or 5, which is characterized in that the shielding case further includes at least one partition；
At least one described partition is arranged in the cavity, for separating the cavity；
Wherein, the material of the partition includes insulating body and the conductive fiber that is dispersed in the insulating body, described to lead
Electric fiber forms the reticular structure of faraday cup effect in the insulating body.
7. shielding case according to claim 6, which is characterized in that edge tool of the partition away from the bottom of the cavity
There is flange.
8. shielding case described according to claim 6 or 7, which is characterized in that the partition is integrally formed with the cover
Structure.
9. a kind of electronic equipment, which is characterized in that including circuit board, the electric elements being installed on the circuit board, Yi Jiru
Shielding case according to any one of claims 1 to 8；The shielding case is arranged on the circuit board, and is located at the electric appliance
At least partly periphery of element.
10. electronic equipment according to claim 9, which is characterized in that the circuit board has welding section, the shielding case
It is welded to connect with the welding section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910532760.XA CN110418562A (en) | 2019-06-19 | 2019-06-19 | A kind of shielding case and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910532760.XA CN110418562A (en) | 2019-06-19 | 2019-06-19 | A kind of shielding case and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110418562A true CN110418562A (en) | 2019-11-05 |
Family
ID=68359363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910532760.XA Pending CN110418562A (en) | 2019-06-19 | 2019-06-19 | A kind of shielding case and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110418562A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111180915A (en) * | 2019-12-26 | 2020-05-19 | 华为技术有限公司 | Electronic equipment |
| CN113204271A (en) * | 2021-05-06 | 2021-08-03 | 湖南长城非凡信息科技有限公司 | Combined anti-interference shielding structure of computer equipment |
| CN113597241A (en) * | 2020-04-30 | 2021-11-02 | 华为技术有限公司 | Shielding case and electronic equipment |
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| CN101150948A (en) * | 2007-10-30 | 2008-03-26 | 中兴通讯股份有限公司 | Plastic shielding cover |
| CN201742677U (en) * | 2010-05-11 | 2011-02-09 | 德信无线通讯科技(上海)有限公司 | Multi-cavity single piece type shielding case |
| CN202713890U (en) * | 2012-07-05 | 2013-01-30 | 深圳市飞荣达科技股份有限公司 | Shielding cover |
| CN106132182A (en) * | 2016-06-27 | 2016-11-16 | 努比亚技术有限公司 | Printed circuit board, mobile terminal, mobile terminal shielding frame and preparation method |
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|---|---|---|---|---|
| CN1863450A (en) * | 2005-10-27 | 2006-11-15 | 华为技术有限公司 | Electromagnetic screening casing |
| CN101150948A (en) * | 2007-10-30 | 2008-03-26 | 中兴通讯股份有限公司 | Plastic shielding cover |
| CN201742677U (en) * | 2010-05-11 | 2011-02-09 | 德信无线通讯科技(上海)有限公司 | Multi-cavity single piece type shielding case |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111180915A (en) * | 2019-12-26 | 2020-05-19 | 华为技术有限公司 | Electronic equipment |
| CN111180915B (en) * | 2019-12-26 | 2021-03-05 | 华为技术有限公司 | Electronic equipment |
| CN113597241A (en) * | 2020-04-30 | 2021-11-02 | 华为技术有限公司 | Shielding case and electronic equipment |
| CN113204271A (en) * | 2021-05-06 | 2021-08-03 | 湖南长城非凡信息科技有限公司 | Combined anti-interference shielding structure of computer equipment |
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Effective date of registration: 20210507 Address after: Unit 3401, unit a, building 6, Shenye Zhongcheng, No. 8089, Hongli West Road, Donghai community, Xiangmihu street, Futian District, Shenzhen, Guangdong 518040 Applicant after: Honor Device Co.,Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Applicant before: HUAWEI TECHNOLOGIES Co.,Ltd. |
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