CN103168510A - Shield can-fixing clip for blocking electromagnetic waves - Google Patents
Shield can-fixing clip for blocking electromagnetic waves Download PDFInfo
- Publication number
- CN103168510A CN103168510A CN2011800456979A CN201180045697A CN103168510A CN 103168510 A CN103168510 A CN 103168510A CN 2011800456979 A CN2011800456979 A CN 2011800456979A CN 201180045697 A CN201180045697 A CN 201180045697A CN 103168510 A CN103168510 A CN 103168510A
- Authority
- CN
- China
- Prior art keywords
- protective cover
- pedestal
- electromagnetic wave
- blocking
- geometrical clamp
- 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.)
- Pending
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Classifications
-
- 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
- H05K9/0032—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields having multiple parts, e.g. frames mating with lids
- H05K9/0035—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields having multiple parts, e.g. frames mating with lids with retainers mounted beforehand on the PCB, e.g. clips
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
Provided is a shield can-fixing clip for blocking electromagnetic waves, wherein a shield can, which is configured to cover electronic components that are mounted on a printed circuit board, is fixed to said printed circuit board, and to this end, the clip comprises: a base unit that is attached in an abutting state onto said printed circuit board; one pair of elastic parts that are upwardly extended and bent to face each other on both sides of a base, so as to grip a sidewall of said shield can in a tong-like manner; and a groove part that is formed in a lengthwise direction on the center of an upper surface of said base unit, so that an insertable end of the shield can is inserted and coupled therewith.
Description
Technical field
the present invention relates to a kind of blocking-up electromagnetic wave protective cover geometrical clamp, it is used for the fixing protective cover as electronic units such as semiconductors that is built in tellite that covers on above-mentioned tellite, be specifically related to a kind of blocking-up electromagnetic wave protective cover geometrical clamp, contact with tellite and the bottom surface of bonding pedestal is formed flatly and increases and is close to area, and form the groove of the insertion end that can sandwich the combinative prevention cover on the top of pedestal, thereby electromagnetic shielding effect is reached the ground state of simple formation protective cover and realizes maximization by the electromagnetic shielding effect of ground state, and do not carry out electroplating processes at the position of inserting fixture, and contact impedance is minimized, can be with the maximized structure of electromagnetic shielding effect thereby have.
Background technology
Usually electromagnetic wave is by useful radio communication or the radar etc. of being used in, but also can play negative effect to the running of electronic equipments, this phenomenon is called Electromagnetic Interference (EMI:Electro Magnetic Interference) phenomenon, and this EMI not only produces the communication obstacle signal of electrical equipment but also is harmful key element.
Thereby, the fixed protective cover of the electronic component-uses such as semiconductor subassembly that will be built in recently the tellite of electrical equipment inside covers, and the EMI that blocking-up produces from above-mentioned electronic unit, thereby not only can not self electrical equipment be exerted an influence, and can not exert an influence to the running of other electrical equipment.
This protective cover in order to clamp the sidewall of protective cover, is arranged on tellite with the protective cover geometrical clamp by the blocking-up electromagnetic wave that is engaged in tellite usually.
Below with reference to the existing blocking-up of accompanying drawing simple declaration electromagnetic wave protective cover geometrical clamp.
Fig. 6 is the cutaway view of existing blocking-up electromagnetic wave with the protective cover geometrical clamp.As Fig. 6, existing blocking-up electromagnetic wave is made of 4 parts with protective cover geometrical clamp (1) is unlikely, the pedestal (4) that comprises the bonding a plurality of fixed parts (2) of the state that contacts with tellite, is formed by upper direction and fixed part (2) isolation take connecting portion (5) as medium, the lateral vertical that makes said base (4) are tortuous, and between fixed part (2) clamping section (3) of formation.
At this, existing blocking-up electromagnetic wave is completed by the automatic welding operation of surface-mounted technology (Surface Mount Technology) equipment usually with protective cover geometrical clamp (1).
This existing blocking-up electromagnetic wave is placed on the welding paste of the surface of tellite through the processing of screening with the nozzle vacuum suction of protective cover geometrical clamp (1) by surface-mounted technical equipment, and automatic bonding is fixed.
At this moment, existing blocking-up electromagnetic wave, forms through nickel/tin electroplating processes in order to be bonded in welding paste on the whole with protective cover geometrical clamp (1).
But because this nickel/tin electroplating processes can make welding paste be bonded at the top of pedestal (4), therefore by connecting portion (5), pedestal (4) and fixed part (2) isolation are formed.
But caused like this from the insulating space of connecting portion (5) and pedestal (4) and spilt electromagnetic problem.
And, when existing blocking-up electromagnetic wave is fixed above-mentioned protective cover with protective cover geometrical clamp (1) with clamping section (3), the insertion end of protective cover is placed in the top of said base (4), at this moment the trickle interval that forms between the insertion end because of pedestal (4) and protective cover spills electromagnetic wave, and very large space is formed at the top at fixed part (2), and greatly reduces electromagnetic screening effect.
And existing blocking-up electromagnetic wave uprises because connecting portion (5) makes the whole height of protective cover with protective cover geometrical clamp (1), so fail safe reduces greatly.
Summary of the invention
The present invention develops in order to address the above problem, the first purpose of the present invention is for providing blocking-up electromagnetic wave protective cover geometrical clamp, form the groove of the insertion end of Intercalation protective cover on the top of pedestal, can be with the maximized structure of electromagnetic shielding effect thereby have.
And, the second purpose of the present invention is for providing a kind of blocking-up electromagnetic wave protective cover geometrical clamp, contact with tellite and the bottom surface of bonding pedestal forms nickel/tin electrodeposited coating, and make welding paste can't attack the top of pedestal, thereby the contact impedance of protective cover and fixture is minimized, to improve screening effect; And the bottom surface of pedestal is formed flatly, and increased and tellite between be close to area, thereby electromagnetic screening effect is maximized, and can be with the whole height step-down of protective cover, thus fixed blade guard more stably.
Technical program of the present invention lies in:
In order to achieve the above object, the invention is characterized in, the first invention relates to the blocking-up electromagnetic wave protective cover geometrical clamp that is fixed for covering the protective cover of the electronic unit that is built in tellite at above-mentioned tellite, comprise pedestal, it contacts with above-mentioned tellite and is bonding; A pair of flexure strip, it extends complications and make progress, and relatively forms in the both sides of said base in order to clamp the sidewall of above-mentioned protective cover with the pliers form; And groove, its center upper portion in said base is formed by vertical, and makes the insertion end of protective cover sandwich joint.
The second invention is that preferably, the bottom surface of said base (10) also comprises electronickelling/tin electroplating layer in the first invention.
The 3rd the invention be, preferably, first the invention in above-mentioned each flexure strip comprise vertical component effect, it is by being bent to form with 90 ° of pedestal vertical direction; Pressurization part is oppressed the sidewall of protective cover from the bending to the inside of above-mentioned vertical component effect; Guidance part, it spreads laterally take above-mentioned pressurization part as benchmark and opens; The opening angle of above-mentioned guidance part (θ) is 75 ° to 90 °.
The 4th invention is that preferably, above-mentioned groove (11) forms to lower recess by the middle body that makes pedestal (10) in the first invention.
Beneficial effect of the present invention is:
Blocking-up electromagnetic wave of the present invention has with the protective cover geometrical clamp groove that the insertion end insertion that makes protective cover is engaged in pedestal top, thus the maximizing electromagnetic shielding effect.
And, contact with tellite and bonding base bottom surface formation nickel/tin electrodeposited coating, and make welding paste can't attack the top of pedestal, thereby the contact impedance of protective cover and fixture is minimized, to improve screening effect; And the bottom surface of pedestal is formed flatly, and increased and tellite between be close to area, thereby electromagnetic screening effect is maximized, and can be with the whole height step-down of protective cover, thus fixed blade guard more stably.
Description of drawings
Fig. 1 is the use state diagram that blocking-up electromagnetic wave of the present invention is used the protective cover geometrical clamp;
Fig. 2 is the cutaway view that blocking-up electromagnetic wave of the present invention is used the protective cover geometrical clamp;
Fig. 3 is the bottom sectional view of Fig. 2;
Fig. 4 is the sectional view that is shown in the state that the blocking-up electromagnetic wave is combined with protective cover with the protective cover geometrical clamp;
Fig. 5 is the bottom sectional view of diagram blocking-up electromagnetic wave of the present invention with the groove of another embodiment of protective cover geometrical clamp;
Fig. 6 is the cutaway view of existing blocking-up electromagnetic wave with the protective cover geometrical clamp.
[primary clustering symbol description]
1: existing blocking-up electromagnetic wave protective cover geometrical clamp
2: fixed part 3: clamping section
4: pedestal 5: connecting portion
10: pedestal 11: groove
12: electrodeposited coating 20: flexure strip
21: vertical component effect 22: pressurization part
23: guidance part 30: blocking-up electromagnetic wave protective cover geometrical clamp
40: tellite 41: welding paste
50: protective cover 60: electronic unit
Embodiment
Describe blocking-up electromagnetic wave protective cover geometrical clamp of the present invention in detail below with reference to accompanying drawing.
Fig. 1 is the use state diagram that blocking-up electromagnetic wave of the present invention is used the protective cover geometrical clamp; Fig. 2 is the cutaway view that blocking-up electromagnetic wave of the present invention is used the protective cover geometrical clamp; Fig. 3 is the bottom sectional view of Fig. 2; Fig. 4 is shown in the sectional view that the blocking-up electromagnetic wave is used the state of combinative prevention cover on the protective cover geometrical clamp; Fig. 5 is the bottom sectional view of diagram blocking-up electromagnetic wave of the present invention with the groove of another embodiment of protective cover geometrical clamp.
as shown in Figure 1, the present invention relates to for be built in the blocking-up electromagnetic wave protective cover geometrical clamp (30) of the protective cover as the electronic units such as semiconductor (60) (50) of tellite (40) in the upper fixing covering of above-mentioned tellite (40), be specifically related to a kind of blocking-up electromagnetic wave protective cover geometrical clamp (30), contact with tellite (40) and the bottom surface of bonding pedestal (10) is formed flatly and increases and is close to area, and the groove (11) with the insertion end that can sandwich combinative prevention cover (50) on the top of pedestal (10), thereby maximizing electromagnetic shielding effect.
This blocking-up electromagnetic wave to shown in Figure 4, is broadly divided into 3 parts as Fig. 2 with protective cover geometrical clamp (30), comprises pedestal (10), flexure strip (20), groove (11).
At this, when said base (10) is used protective cover geometrical clamp (30) for the blocking-up electromagnetic wave that is adhesively fixed, do not make the top of welding paste (scolder) the invasion and attack pedestals (10) of processing through screening on the surface of tellite (40), thereby the bottom surface also comprises electronickelling/tin electroplating layer (12).
At this, electrodeposited coating (12) is the blocking-up electromagnetic wave protective cover geometrical clamp (30) that is formed by steel matter for welding paste is glued fast to, and makes the top of the pedestal (10) of electroplating not be stained with welding paste (41).
Therefore thereby said base (10) is not stained with welding paste (41) because of the top except the bottom surface, has the structure that the whole bottom surface that can make pedestal (10) is formed flatly.
Namely, said base (10) can make whole bottom surface bonding with the state that tellite (40) contacts, therefore can increase and above-mentioned tellite (40) between contact area, and the whole height of reduction protective cover (50), thereby maximize the electromagnetic effect of blocking-up.
And electrodeposited coating of the present invention (12) just forms in the bottom surface of pedestal (10), and the flexure strip of electroless coating and the contact impedance between protective cover are minimized, and will block electromagnetic maximum effect.
Below, with reference to [table 1], the flexure strip of electroless coating of the present invention and flexure strip and the contact impedance between protective cover of the contact impedance between protective cover and existing plating have been carried out 3 tests and compared.
[table 1]
As 3 times contact impedance being tested in [table 1], the contact impedance between electroless coating flexure strip of the present invention and protective cover is lower more than 10 times than the existing flexure strip of electroplating and the contact impedance between protective cover.
This contact impedance is lower, and electromagnetic screening effect is just larger, thereby it is very large to know electromagnetic wave blocking effect of the present invention.
And above-mentioned flexure strip (20) be in order can to clamp the sidewall of above-mentioned protective cover (50) with the pliers form, extended relatively upward by the both sides of said base (10) to be bent to form.This above-mentioned flexure strip (20) is a pair of along vertical formation of said base (10), thereby can more firmly clamp the side of protective cover (50).
At this, above-mentioned each flexure strip (20) comprises vertical component effect (21), and itself and pedestal (10) are by 90 ° of bendings of vertical direction; Pressurization part (22), it is from above-mentioned vertical component effect (21) bending to the inside and to oppressing the side of protective cover (50); Guidance part (23), it spreads laterally take above-mentioned pressurization part (22) as benchmark and opens.
This kind structure can make protective cover (50) easily enter by guidance part (23), and oppresses the sidewall of protective cover (50) by pressurization part (22), thereby can prevent that protective cover (50) breaks away from from flexure strip (20).
At this, preferably, the angle (θ) that above-mentioned guidance part (23) opens is 75 ° to 90 °.This is because if the angle of above-mentioned guidance part (23) is more than 90 ° the time, when inserting protective cover (50), can apply strength to flexure strip (20), therefore flexure strip (20) is deformed, therefore be not suitable for, if below 75 °, be difficult to insert protective cover (50), therefore be not suitable for.
Therefore and above-mentioned groove (11) is formed by vertical in the center upper portion of pedestal (10), can make the insertion end of protective cover (50) sandwich joint.
This structure is inserted in groove (11) with the insertion end of protective cover (50), and covers fully with the outside of protective cover (50), thereby can further strengthen electromagnetic blocking-up.This is to contact and become possibility because the insertion end of protective cover (50) and groove (11) carry out face.
And as shown in Figure 5 above, significantly, above-mentioned groove (11) can form to lower recess by the middle body that makes pedestal (10).
This kind structure gives elasticity to groove (11), thus make and protective cover (50) between combination more firm.
Right of the present invention is not limited to the embodiment of above-mentioned explanation, and is defined according to the record in claim, has in field of the present invention to know that usually the knowledgeable can carry out various distortion and transformation in the nature of things in the interest field of claim record.
Claims (4)
1. block electromagnetic wave protective cover geometrical clamp for one kind, it is used for the fixing protective cover that covers the electronic unit that is built in tellite on tellite, it is characterized in that: comprise pedestal (10), it contacts with described tellite (40) and is bonding; A pair of flexure strip (20), it upwards extends tortuous relative formation in order to clamp the sidewall of described protective cover (50) with the pliers form in the both sides of described pedestal (10); And groove (11), its center upper portion at described pedestal (10) is formed by vertical, and makes the insertion end of protective cover (50) sandwich joint.
2. blocking-up electromagnetic wave protective cover geometrical clamp according to claim 1 is characterized in that: the bottom surface of described pedestal (10) also comprises the electrodeposited coating (12) of electroplating with nickel/tin.
3. blocking-up electromagnetic wave protective cover geometrical clamp according to claim 1, it is characterized in that: each described flexure strip (20) comprising: vertical component effect (21), its vertical with pedestal 90 ° are bent to form; Pressurization part (22), it is oppressed the sidewall of protective cover (50) from described vertical component effect (21) bending to the inside; Guidance part (23), it spreads laterally take described pressurization part (22) as benchmark and opens; The opening angle (θ) of described guidance part (23) is 75 ° to 90 °.
4. blocking-up electromagnetic wave protective cover geometrical clamp according to claim 1, it is characterized in that: described groove (11) forms to lower recess by the middle body that makes pedestal (10).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020100097148A KR101169955B1 (en) | 2010-10-06 | 2010-10-06 | A clip for fixing of shield can protecting emi |
| KR10-2010-0097148 | 2010-10-06 | ||
| PCT/KR2011/006999 WO2012046965A2 (en) | 2010-10-06 | 2011-09-22 | Shield can-fixing clip for blocking electromagnetic waves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103168510A true CN103168510A (en) | 2013-06-19 |
Family
ID=45928188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011800456979A Pending CN103168510A (en) | 2010-10-06 | 2011-09-22 | Shield can-fixing clip for blocking electromagnetic waves |
Country Status (4)
| Country | Link |
|---|---|
| KR (1) | KR101169955B1 (en) |
| CN (1) | CN103168510A (en) |
| TW (1) | TW201230941A (en) |
| WO (1) | WO2012046965A2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103906395A (en) * | 2014-03-07 | 2014-07-02 | 珠海格力电器股份有限公司 | Magnetic ring fixing device and air conditioner outdoor unit with same |
| CN104602468A (en) * | 2014-12-30 | 2015-05-06 | 广州视声电子实业有限公司 | Control panel, mounting box and mounting method |
| CN104936426A (en) * | 2015-05-23 | 2015-09-23 | 上海鼎讯电子有限公司 | Shielding structure and assembling method thereof |
| CN105234855A (en) * | 2014-06-23 | 2016-01-13 | 3M创新有限公司 | Clips including electromagnetic wave absorbing member |
| TWI557766B (en) * | 2015-10-20 | 2016-11-11 | Ting-Yu Lin | Blocking the electromagnetic wave of the switch device |
| CN108064469A (en) * | 2016-12-15 | 2018-05-22 | 深圳市柔宇科技有限公司 | Shielding case |
| US10165672B2 (en) | 2015-11-11 | 2018-12-25 | Sercomm Corporation | Shielding clip and electronic device |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140113045A (en) | 2013-03-15 | 2014-09-24 | 삼성전자주식회사 | Portable terminal and method of making module thereof |
| KR101433051B1 (en) * | 2013-05-29 | 2014-08-25 | (주)세윤 | Shield Finger Gasket |
| WO2015090470A1 (en) * | 2013-12-20 | 2015-06-25 | Arcelik Anonim Sirketi | Method for assembling an electromagnetic interference shield to a printed circuit board |
| CN105899059A (en) * | 2014-10-20 | 2016-08-24 | 莱尔德电子材料(深圳)有限公司 | EMI shield strip installing track |
| KR101949881B1 (en) | 2017-10-12 | 2019-05-08 | 주식회사 웰시스템코리아 | Convolution Neural Network system for dividing and preforming registration, retrieval, and playback of images and picture by mobile devices and servers |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3919738A (en) * | 1973-06-09 | 1975-11-18 | Precitec Gmbh | Push-on handle |
| US6051781A (en) * | 1997-09-24 | 2000-04-18 | Autosplice, Inc. | Surface mount electromagnetic frequency interference shield clip |
| JP2003110274A (en) * | 2001-09-28 | 2003-04-11 | Matsushita Electric Ind Co Ltd | Electronic equipment equipped with shield structure |
| KR20080006506A (en) * | 2007-11-01 | 2008-01-16 | 주식회사 포콘스 | A clip for fixing of shield can |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2404089B (en) * | 2003-07-11 | 2007-05-02 | Craig Rochford | Printed circuit board assembly |
| KR20080006504A (en) * | 2007-08-17 | 2008-01-16 | 주식회사 포콘스 | A fixing implement of shield case for pcb |
-
2010
- 2010-10-06 KR KR1020100097148A patent/KR101169955B1/en not_active IP Right Cessation
-
2011
- 2011-09-22 WO PCT/KR2011/006999 patent/WO2012046965A2/en active Application Filing
- 2011-09-22 CN CN2011800456979A patent/CN103168510A/en active Pending
- 2011-10-05 TW TW100135999A patent/TW201230941A/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3919738A (en) * | 1973-06-09 | 1975-11-18 | Precitec Gmbh | Push-on handle |
| US6051781A (en) * | 1997-09-24 | 2000-04-18 | Autosplice, Inc. | Surface mount electromagnetic frequency interference shield clip |
| JP2003110274A (en) * | 2001-09-28 | 2003-04-11 | Matsushita Electric Ind Co Ltd | Electronic equipment equipped with shield structure |
| KR20080006506A (en) * | 2007-11-01 | 2008-01-16 | 주식회사 포콘스 | A clip for fixing of shield can |
| CN101242735A (en) * | 2007-11-01 | 2008-08-13 | 波肯斯有限公司 | A clip for fixing of shield can |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103906395A (en) * | 2014-03-07 | 2014-07-02 | 珠海格力电器股份有限公司 | Magnetic ring fixing device and air conditioner outdoor unit with same |
| CN103906395B (en) * | 2014-03-07 | 2022-02-15 | 珠海格力电器股份有限公司 | Magnetic ring fixing device and air conditioner outdoor unit with same |
| CN105234855A (en) * | 2014-06-23 | 2016-01-13 | 3M创新有限公司 | Clips including electromagnetic wave absorbing member |
| CN104602468A (en) * | 2014-12-30 | 2015-05-06 | 广州视声电子实业有限公司 | Control panel, mounting box and mounting method |
| CN104936426A (en) * | 2015-05-23 | 2015-09-23 | 上海鼎讯电子有限公司 | Shielding structure and assembling method thereof |
| TWI557766B (en) * | 2015-10-20 | 2016-11-11 | Ting-Yu Lin | Blocking the electromagnetic wave of the switch device |
| US10165672B2 (en) | 2015-11-11 | 2018-12-25 | Sercomm Corporation | Shielding clip and electronic device |
| CN108064469A (en) * | 2016-12-15 | 2018-05-22 | 深圳市柔宇科技有限公司 | Shielding case |
| WO2018107420A1 (en) * | 2016-12-15 | 2018-06-21 | 深圳市柔宇科技有限公司 | Shielding case |
| CN108064469B (en) * | 2016-12-15 | 2020-04-14 | 深圳市柔宇科技有限公司 | Shielding case |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012046965A3 (en) | 2012-06-07 |
| KR101169955B1 (en) | 2012-09-19 |
| KR20120075504A (en) | 2012-07-09 |
| WO2012046965A2 (en) | 2012-04-12 |
| TW201230941A (en) | 2012-07-16 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130619 |