CN101801169A - Electromagnetic shielding device - Google Patents
Electromagnetic shielding device Download PDFInfo
- Publication number
- CN101801169A CN101801169A CN200910247440A CN200910247440A CN101801169A CN 101801169 A CN101801169 A CN 101801169A CN 200910247440 A CN200910247440 A CN 200910247440A CN 200910247440 A CN200910247440 A CN 200910247440A CN 101801169 A CN101801169 A CN 101801169A
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- China
- Prior art keywords
- shielding
- location
- shield bracket
- radome
- electromagnetic screen
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention discloses an electromagnetic shielding device, comprising a shielding cover and a plurality of shielding supports, wherein the shielding cover comprises a shielding cap and shielding walls provided with plural locating holes to form a shielding cavity for containing the electronic elements needing to be shielded; and each shielding support comprises a base which can be arranged on a circuit board and a locating wall provided with at least a spherical enclosure which is matched with the locating holes. The shielding supports of the electromagnetic shielding device are simple in structure and low in cost, can be assembled into any shape as required and have high universality, thus saving the cost and reducing the product development cycle.
Description
Technical field
The present invention relates to a kind of electromagnetic screen.
Background technology
Communication product can produce or accept the electromagnetic wave of external interference in use between base band module and the radio frequency module, thereby influence the serviceability of product, for preventing the generation of this situation, just need add the cover of a shielding electromagnetism at the base band module with above the radio frequency module, this cover most of scheme that is adopted in present industry is the mode that a mask frame adds a lid, promptly in the cell phone mainboard production process, mask frame is welded on the mainboard by SMT earlier, then the lid of shielding usefulness is covered on mask frame by hand.This kind mode need be opened two molds, and difformity can not be shared, needs separately die sinking to make.
Because the mobile phone development cycle is shorter and shorter at present, the mobile phone internal structure is variation more, so the shape of radome also is ever-changing, if a communication product of every design all needs to redesign one or two mask frame, its Products Development cycle and development cost are comparatively speaking than higher, substitute above-mentioned mask frame and radome so in this case, be necessary to design a screening arrangement with general radome support.
Summary of the invention
In order to address the above problem, the invention provides a kind of electromagnetic screen, it comprises a radome and a plurality of shield bracket.
Described radome comprises screening cover and shielding wall, to form a shielding cavity, is used to hold the electronic component of needs shielding, and wherein said shielding wall is provided with a plurality of location holes.What be worth to remind is, the shape of this shielding cavity, and size is by the shape and the size decision of the electronic component of actual needs shielding.
Each shield bracket comprises the base that can be placed on the circuit board and is provided with the location wall of at least one location bag, wherein said location bag and described location hole are complementary, and make described radome be fixed on the circuit board by the combination of described location bag and described location hole.
Further, described base plays the angle of fixation when also being provided with at least one SMT welding, when producing and the metal slot of circuit board top weld together.
Further, the side of described shield bracket becomes the L type, and promptly described location wall vertical fixing is in the edge of described base.
Electromagnetic screen provided by the invention, any needed shape of its shield bracket one-tenth capable of being combined, versatility height.Simultaneously, make that corresponding die cost is cheaper, and difform radome only need be done a kind of shield bracket and gets final product when design new projects, provides cost savings and product development cycle again because it is simple in structure.
Description of drawings
Fig. 1 is the schematic diagram that the present invention is applied to circuit board.
Fig. 2 is the exploded view of Fig. 1.
Fig. 3 is the schematic diagram of radome of the present invention.
Fig. 4 is the schematic diagram of shield bracket of the present invention.
Embodiment
The invention will be further elaborated below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2, the invention provides a kind of electromagnetic screen, it comprises a radome 1 and a plurality of shield bracket 2.
As shown in Figure 3, described radome 1 comprises screening cover 11 and shielding wall 12, to form a shielding cavity, is used to hold the electronic component of needs shielding, and wherein this shielding wall is provided with a plurality of location holes 1201.What be worth to remind is, the shape of described shielding cavity, and size is by the shape and the size decision of the electronic component of actual needs shielding.
As shown in Figure 4, described each shield bracket 2 comprises the base 21 that can be placed on the circuit board and is provided with the location wall 22 of at least one location bag 221, wherein said location bag 221 is complementary with described location hole 1201, makes described radome 1 be fixed on the circuit board by the combination of described location bag 221 and described location hole 1201.
Described base 21 plays the angle 211 of fixation when also being provided with at least one SMT welding, when producing and the metal slot of circuit board top weld together, make that the effect of described shield bracket 2 external force resistances is stronger, improved reliability of products.In preferred embodiment of the present invention, described base 21 is provided with two angles 211.
The side of described shield bracket 2 becomes the L type, and promptly described location wall 22 vertical fixing are in the edge of described base 21, help so described shield bracket 2 be placed in electronic component that needs shield around, also help manufacturing of described shield bracket 2.
Use when of the present invention, mainly may further comprise the steps:
(1) die sinking is offered the mould of described radome 1 of punching press and described shield bracket 2 according to the figure paper size, and the mould of wherein said radome 1 is according to actual conditions, how secondaryly can have, and the mould of described shield bracket 2 only needs a pair;
(2) punching press strikes out described radome 1 and the described shield bracket 2 that designing institute needs with mould and raw material;
(3) packing is packed lopping to described shield bracket 2 so that SMT mounts;
4) SMT paster, described shield bracket 2 mounts circuit board top by the SMT chip mounter;
(5) assembling is anchored to described radome 1 above the described shield bracket 2, just can play the shielding action to electromagnetism.
By the foregoing description, the object of the invention is by in full force and effect having reached.The personage who is familiar with this skill should be understood that the content that the present invention includes but be not limited to describe in the top embodiment.Any modification that does not depart from function of the present invention and structural principle all will be included in the scope of claims.
Claims (5)
1. an electromagnetic screen comprises a radome and a plurality of shield bracket, it is characterized in that, wherein,
Described radome comprises screening cover and is provided with the shielding wall of a plurality of location holes, to form a shielding cavity, is used to hold the electronic component of needs shielding;
Described each shield bracket comprises the base that can be placed on the circuit board and is provided with the location wall of at least one location bag that described location bag and described location hole are complementary.
2. electromagnetic screen as claimed in claim 1 is characterized in that: the shape of described shielding cavity, size is by the shape and the size decision of the electronic component of actual needs shielding.
3. electromagnetic screen as claimed in claim 1 or 2 is characterized in that: described base is provided with at least one angle.
4. electromagnetic screen as claimed in claim 1 or 2 is characterized in that: the side of described shield bracket becomes the L type, and promptly described location wall vertical fixing is in the edge of described base.
5. electromagnetic screen as claimed in claim 3 is characterized in that: the side of described shield bracket becomes the L type, and promptly described location wall vertical fixing is in the edge of described base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910247440A CN101801169A (en) | 2009-12-29 | 2009-12-29 | Electromagnetic shielding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910247440A CN101801169A (en) | 2009-12-29 | 2009-12-29 | Electromagnetic shielding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101801169A true CN101801169A (en) | 2010-08-11 |
Family
ID=42596565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910247440A Pending CN101801169A (en) | 2009-12-29 | 2009-12-29 | Electromagnetic shielding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101801169A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102638961A (en) * | 2012-03-12 | 2012-08-15 | 东南大学 | Shielding cavity with 3-milimeter wave band |
| CN103079120A (en) * | 2012-12-25 | 2013-05-01 | 苏州恒听电子有限公司 | Shielding outer shell with positioning chassis and receiver with shielding outer shell |
| CN103415194A (en) * | 2013-07-25 | 2013-11-27 | 昆山维金五金制品有限公司 | Electromagnetic shielding case |
| WO2014166445A1 (en) * | 2013-07-02 | 2014-10-16 | 中兴通讯股份有限公司 | Shielding device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001053482A (en) * | 1999-08-11 | 2001-02-23 | Tdk Corp | Shielding structure of electronics |
| CN1327712A (en) * | 1999-09-10 | 2001-12-19 | 索尼计算机娱乐公司 | Electromagnetic shield plate, electromaglentic shield structure, and entertainment device |
| CN101166412A (en) * | 2006-10-16 | 2008-04-23 | 英华达(上海)电子有限公司 | A manufacturing method for shielding cover and shielding cover manufactured based on this method |
| CN201336797Y (en) * | 2008-12-12 | 2009-10-28 | 鸿富锦精密工业（深圳）有限公司 | Shield cover |
| CN201360392Y (en) * | 2009-01-21 | 2009-12-09 | 中兴通讯股份有限公司 | Electromagnetic shielding device |
-
2009
- 2009-12-29 CN CN200910247440A patent/CN101801169A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001053482A (en) * | 1999-08-11 | 2001-02-23 | Tdk Corp | Shielding structure of electronics |
| CN1327712A (en) * | 1999-09-10 | 2001-12-19 | 索尼计算机娱乐公司 | Electromagnetic shield plate, electromaglentic shield structure, and entertainment device |
| CN101166412A (en) * | 2006-10-16 | 2008-04-23 | 英华达(上海)电子有限公司 | A manufacturing method for shielding cover and shielding cover manufactured based on this method |
| CN201336797Y (en) * | 2008-12-12 | 2009-10-28 | 鸿富锦精密工业（深圳）有限公司 | Shield cover |
| CN201360392Y (en) * | 2009-01-21 | 2009-12-09 | 中兴通讯股份有限公司 | Electromagnetic shielding device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102638961A (en) * | 2012-03-12 | 2012-08-15 | 东南大学 | Shielding cavity with 3-milimeter wave band |
| CN103079120A (en) * | 2012-12-25 | 2013-05-01 | 苏州恒听电子有限公司 | Shielding outer shell with positioning chassis and receiver with shielding outer shell |
| CN103079120B (en) * | 2012-12-25 | 2015-11-25 | 苏州恒听电子有限公司 | A kind of screening can with positioning chassis and the receiver with this screening can |
| WO2014166445A1 (en) * | 2013-07-02 | 2014-10-16 | 中兴通讯股份有限公司 | Shielding device |
| CN103415194A (en) * | 2013-07-25 | 2013-11-27 | 昆山维金五金制品有限公司 | Electromagnetic shielding case |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: WINGTECH COMMUNICATION CO., LTD. Free format text: FORMER OWNER: WINGTECH GROUP LIMITED Effective date: 20120207 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 314000 JIAXING, ZHEJIANG PROVINCE TO: 314006 JIAXING, ZHEJIANG PROVINCE |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20120207 Address after: 314006, No. 777, Middle South Road, Nanhu District, Zhejiang, Jiaxing (Jiaxing science and technology city) Applicant after: Wingtech Communication Co., Ltd. Address before: 314000, Zhejiang, Jiaxing on the north side of South Central Road, two West Road (Zhejiang branch of science and Technology Development Investment Co., Ltd., 1, 302, 303 rooms) Applicant before: Wingtech Group Limited |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100811 |