CN102548375A - Cloaking device - Google Patents

Cloaking device Download PDF

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Publication number
CN102548375A
CN102548375A CN2010106219635A CN201010621963A CN102548375A CN 102548375 A CN102548375 A CN 102548375A CN 2010106219635 A CN2010106219635 A CN 2010106219635A CN 201010621963 A CN201010621963 A CN 201010621963A CN 102548375 A CN102548375 A CN 102548375A
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CN
China
Prior art keywords
mentioned
masking device
perforation
circuit board
lid
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Granted
Application number
CN2010106219635A
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Chinese (zh)
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CN102548375B (en
Inventor
侯信宏
冯胜杉
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Pegatron Corp
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Pegatron Corp
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Priority to CN201010621963.5A priority Critical patent/CN102548375B/en
Publication of CN102548375A publication Critical patent/CN102548375A/en
Application granted granted Critical
Publication of CN102548375B publication Critical patent/CN102548375B/en
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  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Non-Metallic Protective Coatings For Printed Circuits (AREA)

Abstract

The invention provides a cloaking device applied to a circuit board. The cloaking device comprises a cloaking cover body and a plurality of fastening pieces, wherein the cloaking cover body covers the circuit board and is provided with a plurality of through holes, each fastening piece is provided with an elastic part and a fixed part, the fixed parts are fixedly arranged on the circuit board, and the elastic parts deform so as to pass through the corresponding through holes and recover so as to fix the cloaking cover on the circuit board. The cloaking device provided by the invention is beneficial to replacement or maintenance of electronic elements in the future and is good for the production standardization of material and parts.

Description

Masking device
Technical field
The present invention relates to a kind of masking device, particularly a kind of masking device that prevents electromagnetic interference.
Background technology
Electronic component can produce electromagnetic field to a certain degree when operation; May the phase mutual interference between the electromagnetic field that electronic component produced, obstruct; Be so-called Electromagnetic Interference (Electro-Magnetic Interference; EMI), cause the electronic component can't normal operation, influence the quality of signal transmission.Use the method that prevents Electromagnetic Interference that water power plating, electric plating, vacuum splashing and plating and spraying conductive paint etc. are arranged at present on the market, or directly utilize the shield effectiveness of metal material, for example use materials such as stainless steel, aluminium foil, ironware or almag.Wherein, the mode of directly covering with metalwork is because cost is lower and meet current environmental regulation, so the most often be used.
Fig. 1 is the exploded view of known a kind of masking device, and please with reference to shown in Figure 1, masking device 1 is applied to circuit board 11, and comprises support 12 and cover lid 13.Support 12 utilizes the modes of welding to be fixed in circuit board 11 usually, and with shape, size and the putting position of the required electronic component that covers, changes the configuration of support 12, is clathrate in this support 12.Cover that lid 13 comprises top board 131 and by this top board edge to the side plate that extends below 132, top board 131 can cover lid 13 with support with support 12 is inconsistent, 132 of side plates engage with support 12, make to cover between lid 13 and the circuit board 11 to form accommodation space.At last, will cover lid 13 and be fixed on the circuit board 11, and make and cover lid 13 firmly to be covered in the electronic component that is installed on the circuit board 11 outside, and then accomplish the setting of masking device 1.
Yet known technology will cover lid 13 masks be placed on the electronic component on the circuit board 11 after, not quick detachable, if so that to keep in repair or when changing electronic component in the future, need man-hour of first labor will cover lid 13 and remove, process is the waste of manpower cost quite.Moreover limited because of the operation space of circling round near the electronic component of support 12 inner edges, other produces the not problem of easy-maintaining.In addition, with regard to material cost, if the shape of circuit board 11 or electronic component putting position change, support 12 also must be made again, is difficult for volume production and expends cost.
Therefore, but how a kind of volume production and easily-disassembled masking device are provided, it not only can be beneficial to changes or the maintenance electronic component in the future, and is suitable for the standardized technological design of materials and parts, saves manpower and manufacturing cost simultaneously, has become important topic.
Summary of the invention
Because above-mentioned problem, but the object of the invention is that a kind of volume production and easily-disassembled masking device are provided, it not only can be beneficial to changes or the maintenance electronic component in the future, and is suitable for the standardized technological design of materials and parts, saves manpower and manufacturing cost simultaneously.
For reaching above-mentioned purpose, be applied to circuit board according to a kind of masking device of the present invention, and this masking device comprises and covers lid and a plurality of fastener.Cover the lid covering board, cover lid and have a plurality of perforation.A plurality of fasteners have elastic portion and fixed part respectively, and fixed part is fixedly arranged on circuit board, and the elastic portion distortion to be passing corresponding perforation, and recover with the fixed blind lid in circuit board.
In an embodiment of the present invention, the sidewall that covers lid has outer extension, and perforation is formed at outer extension, the ground path of outer extension contact circuit plate.
In an embodiment of the present invention, outer extension has bulge-structure, and bulge-structure and circuit board form accommodation space, ccontaining fixed part.
In an embodiment of the present invention, a side of fixed part corresponding circuits plate has the plane, and circuit board is welded or is bonding on the plane.
In an embodiment of the present invention, elastic portion has the width greater than perforation.
In an embodiment of the present invention, circuit board has a plurality of slots, and above-mentioned a plurality of fixed part is inserted in corresponding above-mentioned a plurality of slots.
In an embodiment of the present invention, elastic portion has two press sections, and above-mentioned two press sections are pressed distortion to pass through perforation.
In an embodiment of the present invention, the shape of press section comprises circle, semicircle, rectangle, triangle, wedge shape, trapezoidal, rhombus or annular.
In an embodiment of the present invention, elastic portion also has connecting portion, connects above-mentioned two press sections.In an embodiment of the present invention, connecting portion and press section are one-body molded.
Hold the above, because of according to a kind of masking device of the present invention, utilize a plurality of fasteners are set, and fix with its fixed part respectively, the elastic portion correspondence is passed the mode of the perforation of covering lid, will cover lid and be fixed on the circuit board.Because the material of elastic portion own has suitable elasticity, so can get into perforation through interfering.And, only need impose external force extrusion elastic portion when taking off when covering lid, can break away from covering lid easily.With known art, the present invention not only is prone to assembling and disassembles, not fragile covering lid body, and cover lid fixedly the time except that exempting manual welding, more because of the structure of the easy application of force that is suitable for arranging in pairs or groups, favourable operation is promptly accomplished.In addition, because the configuration of fastener own is simple, furthermore application of elastic is big, changes so work as the shape or the electronic component putting position of circuit board, also only needs the corresponding position that fastener is fixed in circuit board of adjusting, and has high applicability.Be with, but the present invention is a volume production and is prone to assembling and the masking device of disassembling.
Description of drawings
Fig. 1 is the exploded view of known a kind of masking device;
Fig. 2 A and 2B are respectively the constitutional diagram and the exploded view of a kind of masking device of first embodiment of the invention;
Fig. 3 A and 3B are respectively the constitutional diagram and the exploded view of a kind of masking device of second embodiment of the invention.
Embodiment
Below will the masking device according to the preferred embodiment of the present invention be described with reference to relevant drawings, wherein components identical will be explained with identical reference marks.
Fig. 2 A and Fig. 2 B are respectively the constitutional diagram and the exploded view of a kind of masking device of first embodiment of the invention.Please with reference to shown in Fig. 2 A and Fig. 2 B, masking device 2 is applied to circuit board 21, and this circuit board 21 is preferably printed circuit board (PCB).Masking device 2 comprises and covers lid 22 and a plurality of fastener 23.
Cover lid 22 and have a plurality of perforation 221; Right its 221 numbers of boring a hole do not have special restriction; Look the shape of circuit board 21 or the needs of electronic component putting position, and with certain fixed blind lid 22 in position that institute's desire covers and to avoid unstable or rock be principle.In the present embodiment, to have four perforation 221 be example to cover lid 22, and each side has a perforation 221 respectively.So in other embodiments, cover lid 22 and can have for example 2 or 8 perforation 221, the former is arranged at the corresponding both sides of covering lid 22 respectively, and the latter then is that every side has two perforation 221 respectively.
Cover lid 22 covering boards 21.Can refer to that in this alleged covering the part on the body surface area gets final product, and not limit area size, be with; Cover the only electronic component on the covering board 21 of lid 22; For example partly cover, covering board 21 fully, and the present invention does not limit at this.A sidewall 222 that covers lid 22 has an outer extension 223.Please refer to shown in Fig. 2 B, in the present embodiment, outer extension 223 for example by the lower edge of sidewall 222 to the lateral direction horizontal-extending that covers lid 22, be with, outer extension 223 can form similar along sidewall 222 around and the outstanding skirtboard of level.In the present embodiment, outer extension 223 has the length identical with covering lid 22, so that bigger contact area to be provided; Yet; In other embodiment of the present invention, each outer extension 223 can have the length that part is covered lid 22 respectively, for example covers 1/2nd of lid 22.
In the present embodiment, perforation 221 is formed at outer extension 223.In detail, perforation 221 can for example run through the passage of outer extension 223 for rectangle, and its three bread overlays in the outer extension 223, and simultaneously is close to sidewall 222, and in other words, boring a hole 221 is arranged at outer extension 223 and sidewall 222 junction.
As previously mentioned, in the present embodiment, four sidewalls 222 that cover lid 22 have outer extension 223 respectively, and each outer extension 223 all has perforation 221.Again, the ground path of outer extension 223 contact circuit plates 21.So; Utilization will be covered lid 22 and will be covered in the electronic component outside that is installed on the circuit board 21; Cooperate the ground path of outer extension 223 contact circuit plates 21 and suitable fixed form, electromagnetic shielding effect can be provided, influence the running of electronic component to prevent Electromagnetic Interference.For reaching above-mentioned effect, wherein, the material that covers lid 22 can be for example and without limitation to stainless steel, tinplate, foreign copper-nickel alloy etc.
Fastener 23 has elastic portion 231 and fixed part 232 respectively.Wherein, fixed part 232 provides suitable configuration, with through for example weld, bind, mode such as locking is fixedly arranged on circuit board 21.In the present embodiment, fixed part 232 for example is a rectangular flat plate, and a side of its corresponding circuits plate 21 has a plane, and this plane is used for welding or is bonding on circuit board 21.Certainly, under fixable condition, other is for example semicircle, triangle or other polygonal plate body or lamellar body also can be fixed part 232.
In the present embodiment, elastic portion 231 is for linking with fixed part 232 and forming 90 degree angles between the two, be with, elastic portion 231 is vertical with circuit board 21.Wherein, need benly to be, in this alleged elastic portion 231, refer to the part of this fastener 23, it is because of having selected material and structure, thus deformation can take place under suitable external force, and after external force removes, can recover original appearance again.For example; Please refer to shown in Fig. 2 B; Elastic portion 231 is by slightly plastic sheet of tool thickness (as indicating 233 parts among the figure) and strip part (as indicating 234 parts among the figure) institute form; Supplying the user to impose between the position of pushing external force respectively with two fingers is hollow space, and only other partly links with strip in the lower end.
Through above-mentioned characteristic, elastic portion 231 deformabilitys are covered perforation 221 corresponding on the lid 22 to pass, and recover with fixed blind lid 22 in circuit board 21.In the present embodiment, the number of fastener 23 and the position of setting do not limit, and can adjust according to actual needs, and in the present embodiment, perforation 221 numbers that correspondence is covered end cap 22 are example with four fasteners 23.What be worth explanation especially is, can pass perforation 221 based on the external force fashion of extrusion for making elastic portion 231, and elastic portion 231 can have the width greater than perforation 221.Further specify, elastic portion 231 has two press sections 233, is to be example with the semicircle in this, and press section 233 is by the length and width degree d between an end to the other end 1Width d greater than perforation 221 2, make press section 233 can be pressed distortion to pass through perforation 221.When assembling or disassembling, can semicircular press section 233 inwardly be pushed, make the width d on its both sides 1Be slightly less than the width d of perforation 221 2, to pass corresponding perforation 221, quite ease of assembly or disassemble, and not fragile covering lid body 22.And the shape of press section 233 comprises circle, semicircle, rectangle, triangle, wedge shape, trapezoidal, rhombus or annular, not as limit, all shapes that can be suitable for applying external force all available it.In addition, in other embodiments, elastic portion 231 also can have a junction; It can be the stripe shape materials and parts with radian, connects those press sections 233, removes the structural strength that can increase press section 233; Avoid fracture, also can be used as the deformation degree of adjustment press section 233 when stressed.Certainly, the fastener 23 of present embodiment and each partial structurtes thereof are can shoot mode integrally formed.
Certainly, under elastic portion 231 was out of shape with the condition of passing perforation 221, the present invention is the degree and the mode of restrained deformation not.With deformation extent, deflection helps elastic portion 231 greatly certainly through perforation 221, for example the width d of the elastic portion 231 after the distortion 1For boring a hole 221 width d 22/3rds.For example compress etc. as for other mode of texturing.
In addition, in the present embodiment, the outer extension 223 that covers lid 22 can have a plurality of bulge-structures 224 of corresponding fastener 23 numbers, and it can form an accommodation space with ccontaining fixed part 232 with circuit board 21.As previously mentioned; One side of fixed part 232 corresponding circuits plates 21 can have a plane; And with the welding of this plane or be bonding on circuit board 21, be with, the fixed part 232 of fastener 23 is preferably flat board as shown in the figure; It not only has a plane can bind or be welded in circuit board 21, and is fit to be sticked in the accommodation space of bulge- structure 224 and 21 formation of circuit board.Thus, can increase circuit board 21, fixed part 232 and the contact area of covering lid 22, to promote circuit board 21, fixed part 232 and the combination stability that covers lid 22.Wherein, what stress once more is, the body of fixed part 232 does not exceed with flat board, also can be cone or hemisphere or the like, but with a side that circuit board 21 is fitted be good still with the plane.As for the design of the body of the then corresponding fixed part 232 of accommodation space, so that fixed part 232 can be placed in the accommodation space, increase its contact area, make the location of masking device 2 can be more firm.
Fig. 3 A and Fig. 3 B are respectively the constitutional diagram and the exploded view of a kind of masking device of second embodiment of the invention.Please with reference to shown in Fig. 3 A and Fig. 3 B, in the present embodiment, masking device 3 is roughly the same with last embodiment, and the sidewall 322 that covers lid 32 has outer extension 323, and outer extension 323 also has a plurality of bulge-structures 324.Different is that circuit board 31 has a plurality of slots 311, and the fixed part 332 of fastener 33 is inserted in corresponding slot 311.In the present embodiment, it is example that fixed part 332 links rectangular cylinder 332b with dull and stereotyped 332a, and corresponding inserted is in the slot 311 of circuit board 31.And the elastic portion 331 of fastener 33 has two press sections 333, and the dull and stereotyped 332a and the rectangular cylinder 332b of itself and fixed part 332 are one-body molded.During actual job; Utilize modes such as buckle, gluing, welding to be inserted in the slot 311 of circuit board 31 the rectangular cylinder 332b of fastener 33; For example dull and stereotyped 332a is fixedly welded on circuit board 31 again; To increase the contact area of circuit board 31 and fixed part 332, to promote the combination stability of circuit board 31 and fixed part 332.Then, push elastic portion 331 and pass the perforation 321 of covering lid 32, can accomplish the setting of masking device 3.It should be noted that in other embodiment of the present invention the fixed part 332 of fastener 33 can be separately a cylinder also, utilize the mode that plugs to fix it.
In sum,, utilize a plurality of fastener correspondences to pass the perforation of covering lid, will cover lid and be fixed on the circuit board because of according to a kind of masking device of the present invention.With known art; The present invention not only is prone to assembling and disassembles; And when the shape or the electronic component putting position of circuit board changes; As long as the adjustment fastener is fixed in the position of circuit board, fastener promptly capable of using will cover lid and be combined on the circuit board, but accomplish a volume production and be prone to assembling and the masking device of disassembling.
The above is merely illustrative, but not is restricted person.Anyly do not break away from spirit of the present invention and category, and, all should be contained in claims its equivalent modifications of carrying out or change.

Claims (10)

1. a masking device is applied to circuit board, it is characterized in that, above-mentioned masking device comprises:
Cover lid, cover the foregoing circuit plate, the above-mentioned lid that covers has a plurality of perforation; And
A plurality of fasteners have elastic portion and fixed part respectively, and said fixing portion is fixedly arranged on the foregoing circuit plate, and above-mentioned elastic portion distortion to be passing corresponding above-mentioned perforation, and recover with the fixing above-mentioned lid that covers in the foregoing circuit plate.
2. masking device according to claim 1 is characterized in that, the above-mentioned sidewall that covers lid has outer extension, and above-mentioned a plurality of perforation is formed at above-mentioned outer extension, the ground path of above-mentioned outer extension contact foregoing circuit plate.
3. masking device according to claim 2 is characterized in that, above-mentioned outer extension has bulge-structure, and above-mentioned bulge-structure and foregoing circuit plate form accommodation space, ccontaining said fixing portion.
4. masking device according to claim 1 is characterized in that, a side of the corresponding foregoing circuit plate of said fixing portion has the plane, and the foregoing circuit plate is welded or is bonding on above-mentioned plane.
5. masking device according to claim 1 is characterized in that above-mentioned elastic portion has the width greater than above-mentioned each perforation.
6. masking device according to claim 1 is characterized in that the foregoing circuit plate has a plurality of slots, is inserted in corresponding above-mentioned a plurality of slots for above-mentioned a plurality of fixed parts.
7. masking device according to claim 1 is characterized in that, above-mentioned elastic portion has two press sections, and above-mentioned two press sections are pressed distortion with the above-mentioned perforation through correspondence.
8. masking device according to claim 7 is characterized in that above-mentioned elastic portion also has connecting portion, connects above-mentioned two press sections.
9. masking device according to claim 8 is characterized in that, above-mentioned connecting portion and above-mentioned two press sections are one-body molded.
10. masking device according to claim 7 is characterized in that, the shape of above-mentioned two press sections comprises circle, semicircle, rectangle, triangle, wedge shape, trapezoidal, rhombus or annular.
CN201010621963.5A 2010-12-29 2010-12-29 Cloaking device Active CN102548375B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201010621963.5A CN102548375B (en) 2010-12-29 2010-12-29 Cloaking device

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Application Number Priority Date Filing Date Title
CN201010621963.5A CN102548375B (en) 2010-12-29 2010-12-29 Cloaking device

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CN102548375A true CN102548375A (en) 2012-07-04
CN102548375B CN102548375B (en) 2014-10-15

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103415194A (en) * 2013-07-25 2013-11-27 昆山维金五金制品有限公司 Electromagnetic shielding case
TWI749887B (en) * 2020-11-20 2021-12-11 英業達股份有限公司 Electronic assembly and server

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1499921A (en) * 2002-11-06 2004-05-26 英华达(上海)电子有限公司 Method for fixing shield cover on a circuit board and fixed structure
WO2004075611A1 (en) * 2003-02-24 2004-09-02 Brenton O'brien Pcb connector
CN101378646A (en) * 2007-08-28 2009-03-04 明基电通（上海）有限公司 Shielding structure and electronic device using the same
TWM358521U (en) * 2008-12-22 2009-06-01 Universal Scient Ind Co Ltd Electromagnetic shielding device with heat conducting and dissipating capabilities

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1499921A (en) * 2002-11-06 2004-05-26 英华达(上海)电子有限公司 Method for fixing shield cover on a circuit board and fixed structure
WO2004075611A1 (en) * 2003-02-24 2004-09-02 Brenton O'brien Pcb connector
CN101378646A (en) * 2007-08-28 2009-03-04 明基电通（上海）有限公司 Shielding structure and electronic device using the same
TWM358521U (en) * 2008-12-22 2009-06-01 Universal Scient Ind Co Ltd Electromagnetic shielding device with heat conducting and dissipating capabilities

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103415194A (en) * 2013-07-25 2013-11-27 昆山维金五金制品有限公司 Electromagnetic shielding case
TWI749887B (en) * 2020-11-20 2021-12-11 英業達股份有限公司 Electronic assembly and server

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