CN203105044U

CN203105044U - A surface-mounted clamping piece used for a surface-mounted shade assembly

Info

Publication number: CN203105044U
Application number: CN 201220746128
Authority: CN
Inventors: 陈惟诚
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-12-31
Filing date: 2012-12-31
Publication date: 2013-07-31
Anticipated expiration: 2022-12-31

Abstract

The utility model relates to a surface-mounted clamping piece used for a surface-mounted shade assembly. The surface-mounted shade assembly comprises at least two pairs of surface-mounted clamping pieces and one conductive-material covering sheet. The conductive-material covering sheet comprises a top portion and clamped portions formed by bending and extending at least two opposite side edges of the top portion. Each surface-mounted clamping piece comprises a mounting segment, a front end rim, a back end rim, and clamping arm segments. The mounting segment contacts and is soldered on a circuit board. The back end rim is opposite to the front end rim. The clamping arm segment is formed by bending and extending the front end rim or the back end rim and comprises a clamping portion and a chamfer portion. The clamping portion is formed by bending and extending the front end rim or the back end rim of the installing segment.

Description

The mounted on surface intermediate plate that the mounted on surface mask assembly is used

[technical field]

The utility model is about a kind of mounted on surface intermediate plate, the mounted on surface intermediate plate that especially a kind of mounted on surface mask assembly simple in structure, that be convenient to install and dismantle is used.

[background technology]

Electromagnetic interference (EMI, electro-magnetic interference) effect almost betides all electronic products, no matter be because of after the internal electronic element energising, the electromagnetic wave that electromagnetic induction produced to arround electronic component cause interference, perhaps in the external environment condition, electromagnetic radiation that spreads all over such as interference such as communication or electric machine, even slight electromagnetic interference all might influence the stability and the reliability of whole electronic system, severe patient more can cause bad influence to human body.

Even if each tame manufacturer is at the planning and designing initial stage of product, at issuable electromagnetic interference problem, electronic component material selection internally, circuit alignment placement etc. are done scrupulous design, still can't avoid the generation of electromagnetic interference fully, therefore, on some electronic component, the other covering one deck conduction of meeting shade, shielding intercepts extraneous electromagnetic interference by this, influence is reduced to minimum.

And the installation method of EMI shade, earliest period is that shade is directly welded on the circuit board, but when internal electronic element generation problem, the maintenance personal needs the shade tip-off is pulled down, inconvenience when not only the maintenance personal operates more likely in the process of tip-off and reflow, causes the damage of electronic component.

Therefore there is the dealer to propose to replace welding stationary shroud mode with clip device as shown in Figure 5, by in advance the intermediate plate 1 of mounted on surface being welded on the circuit board and elasticity clipping shade 3.Intermediate plate 1 as shown in Figure 5, has the inner arc sheet 122 that a pair of shell fragment 121 and reflexed extend, a spacing is arranged between two shell fragments 121, when the side plate 31 of shade 3 inserts in this spacing, bend into 122 side plates 31 that clamp shade 3 because of elastically-deformable restoring force butt of two inner arc sheets in this spacing; On the other hand, in the process that side plate 31 plugs, also wishing can be by outer inclination lead angle of inner arc sheet 122 tops formation, and guiding side plate 31 enters between the shell fragment 121, and it is smooth to make shade 3 insert fixing process.

But be subject to above-mentioned clip device integral width 1 to 1.5 millimeter (mm) only arranged usually, deduct the thickness of two shell fragments 121 and two inner arc sheets 122, can hold the distance of shrinking back of side plate 31 and also often have only a few tenths of a mm, and for asking clipping side plate 31 firmly, not only very close to each other between the two inner arc sheets 122, more have suitable clipping strength.So in the installation exercise flow process of reality,, the free-hand tram of operating personnel just quite difficult with 122 of shade side plate 31 insertion inner arc sheets even the location of shade 3 relative intermediate plates 1 is very accurate.

Especially need consider, above-mentioned clip device is often with at least four or eight, by the four directions jointly around electronic component with conductively-closed, allow four side plates 31 of shade 3 be clamped on the circuit board respectively with being stabilized, operating personnel are forced to take into account simultaneously the slit of four or eight a few tenths of a mm, side plate 31 with shade 3 each face all inserts correct slit location synchronously, have careless slightly, will insert because of shade 3 side plates and make intermediate plate 1 or shade 3 crooked or fractures accidentally, cause and heavily to come by renewal part, the requirement of high precision not only allows the packaging efficiency of product promote, and then influence production capacity, also allow manpower and material cost additionally explode.

In installation process, operating personnel could be earlier with preliminary fixing on one side, seek the correct location on three limits in addition again? it's a pity, because the intermediate plate 1 on each limit all has enough clipping elastic force, side plate 31 has correctly been inserted in the intermediate plate 1 of a side if shade 3 has on one side, then the inner arc sheet 122 of this sheet intermediate plate 1 will produce greatest frictional force to this side plate 31, make other laterally finely tune the quite difficulty that becomes.And 31 of intermediate plate 1 that width is extremely narrow and 3 side plates of shade as thin as a wafer, if three limits or both sides are arranged by correct clipping, but there have one side or both sides to plant in addition to be bad, frictional force during but because of clipping, allowing operating personnel take for properly is provided with, it is excessive to cause the EMI of electronic installation to disturb, and former electronic installation that should smooth operation can't be detected by EMI.Because it is bad to be worth the shade installing of dollar number mao, undermine the mobile phone, panel computer or the notebook computer that are worth hundreds if not thousands of dollars, the effect of this kind amplification and harmful effect are shifted responsibility onto others shade and clamping piece structure absolutely not merely and well can be solved.

Therefore, how to provide a kind of simple in structure, the shade fixture that the operator can be installed easily, dismantle, and the most important thing is that assembling process can finely tune easily, even have the wrong probability of dress hardly, improve the assembling yield and the production efficiency of whole electronic installation by this, and significantly reduce unnecessary part loss cost, will become the main points that the utility model is focused on.

[utility model content]

The mounted on surface intermediate plate that provides a kind of mounted on surface mask assembly simple in structure to use is provided a purpose of the present utility model.

The mounted on surface intermediate plate that another purpose of the present utility model is to provide a kind of conveniently installs, the mounted on surface mask assembly of dismounting is used.

Another purpose of the present utility model is to provide a kind of and can cooperates different circuit design easily and change the mounted on surface intermediate plate that the mounted on surface mask assembly of mounting means is used, and significantly increases the elasticity of circuit design.

A purpose more of the present utility model is to provide a kind of and can finely tunes, and makes installation process smooth and easy and be easy to differentiate, and makes the significantly mounted on surface intermediate plate used of the mounted on surface mask assembly of rapid drawdown of the wrong probability of installing.

Mounted on surface intermediate plate according to the mounted on surface mask assembly that the utility model disclosed is used comprises: a construction section that supplies contact and be soldered to a circuit board has a front-end edge and the end edge in contrast to this front-end edge; And a jig arm section of extending by the bending of one of above-mentioned front-end edge or end edge, comprise a clamping portion and a chamfered corners of extending by the bending of one of aforementioned construction section front-end edge or end edge.

By the utility model unique design, single mounted on surface intermediate plate does not have the structure of any independent clipping, can allow the operator in the installation process of reality, make opaque disk aim at clamping portion and then insert easily, avoid accurately to insert the shade side plate in the very little Clamping mechanism shell fragment gap as background technology, even may insert the careless crooked or fracture of intermediate plate that makes because of the shade side plate, add, except that the structure simplicity of design, also allow simultaneously the operator be easy to install, dismounting, save the work flow time, add unique chamfered corners design, providing the designer more to use elasticity and convenience, is emphasis of the present utility model to reach above-mentioned all purposes.

[description of drawings]

The mounted on surface intermediate plate first preferred embodiment schematic diagram that Fig. 1 uses for the utility model mounted on surface mask assembly.

Fig. 2 is Fig. 1 mounted on surface clamping piece structure schematic diagram.

Fig. 3 is that the 1st kind of opaque disk of first preferred embodiment installed the embodiment schematic diagram.

The mounted on surface intermediate plate second embodiment schematic diagram that Fig. 4 uses for the utility model mounted on surface mask assembly.

Fig. 5 is known clip device schematic diagram.

The mounted on surface intermediate plate that Fig. 6 uses for the utility model mounted on surface mask assembly is installed polygon opaque disk schematic diagram.

Fig. 7 is the installation schematic diagram of Fig. 6.

[main element symbol description]

1,4,4 ', 4 " ... intermediate plate 121 ... shell fragment

122 ... inner arc sheet 3 ... shade

31 ... side plate 41 ... construction section

42 ...

jig arm section

43,43 ' ... clamping portion

431 ... depression 44,44 ' ... chamfered corners

45 ...

structure enhancing portion

5,5 ', 5 " ... opaque disk

51 ... top 52,52 ' ... be subjected to fastening part

521 ... interference protrusion 6 ... the IC element

[embodiment]

About aforementioned and other technology contents, characteristics and effect of the present utility model, in the detailed description of the preferred embodiment of following cooperation Figure of description, can clearly present.

In the utility model first preferred embodiment; the electromagnetic interference effect that is not subjected to other electronic components and is produced for IC element on the protective circuit plate; as Fig. 1 and shown in Figure 2; pass through surface mounting technology (SMT) in advance around IC element 6 on the circuit board; load onto paired mounted on surface intermediate plate 4; utilize the construction section 41 on the intermediate plate 4 to be fixed on the circuit board; as the base that opaque disk 5 is installed; the opaque disk 5 that desire is installed is a conductive material; comprise a top 51 with four sides; and four sides are formed with two pairs respectively and are subjected to fastening part 52, and the spatially masked IC element 6 of shade that forms a sealing is not subjected to external electromagnetic interference.

For convenience of description, this example strengthens the extension that portion 45 is considered as clamping portion 43 with structure, therefore, next illustrates and illustrate all to replace structure enhancing portion 45 with clamping portion 43.

Because the clamping portion 43 of the utility model uniqueness and the design of chamfered corners 44, the operator only need adjust two intermediate plates, 4 clamping portions, 43 spacings, two kinds of modes that opaque disk 5 is installed can be arranged, this example selects the 1st kind embodiment to be installed as an illustration, therefore, when opaque disk 5 is installed, be subjected to the width of fastening part 52 to do the adjustment of installation site with opaque disk 5, clamping portion 43 spacings that make two jig arm sections 42 are greater than the spacing that is subjected to fastening part 52, please in the lump with reference to figure 3, be subjected to fastening part 52 inboards to prop up a wherein intermediate plate 4 clamping portions 43 outsides with an angle of inclination with one, and with by the clamping portion 43 that propped up as the strong point, at this moment, operating personnel can finely tune opaque disk 5 positions arbitrarily, make another be subjected to fastening part 52 to aim at another chamfered corners 44, then opaque disk 5 is from top to bottom covered to another chamfered corners 44, because two intermediate plates, 4 chamfered corners, 44 spacings are less than being subjected to fastening part 52 spacings, therefore opaque disk 5 is subjected to fastening part 52 can be covered in two chamfered corners, 44 outsides, and, can accurately and easily opaque disk 5 be pressed downward to clamping portion 43 by the guiding of chamfered corners 44.

Add, two clamping portions, 43 spacings are greater than the spacing that is subjected to fastening part 52, make and be subjected to fastening part 52 strain when coming downwards to clamping portion 43 by chamfered corners 44, utilization is interacted by sprung back's power of fastening part 52 and clamping portion 43, and opaque disk 5 is fixed on two intermediate plates 4, and depression 431 is arranged on the clamping portion 43, the just in time corresponding interference protrusion 521 that is subjected to fastening part 52, by combining of interference protrusion 521 and depression 431, make operator's foundation to some extent when opaque disk 5 is installed, learn whether opaque disk 5 is mounted to correct position, can increase the stability of clamping portion 43 clipping opaque disks 5 simultaneously.By the obstruct effect that opaque disk 5 provides, protection IC element 6 is not subjected to external electromagnetic interference, guarantees the running that element can be stable.

In the same manner, when the IC element all was equipped with the mounted on surface intermediate plate all around, the be subjected to fastening part adjacent with the opaque disk both sides propped up the wherein pinch of two adjacent intermediate plates, and did laterally or vertically finely tuning of position, make opaque disk can cover two intermediate plates in addition smoothly, finish installation by this smoothly.

And the utility model second embodiment, as shown in Figure 4, be that opaque disk 5 ' is put into two intermediate plates 4 ', therefore, when opaque disk 5 ' is installed, earlier be subjected to fastening part 52 ' to prop up a wherein clamping portion 43 ' inboard with one, behind the fine setting good position, opaque disk 5 ' is from top to bottom placed, because two chamfered corners, 44 ' spacing is greater than being subjected to fastening part 52 ' spacing, thus be subjected to the fastening part 52 ' can be between two chamfered corners 44 ', this moment the operator only need depress gently opaque disk 5 ' to spacing less than the clamping portion 43 ' that is subjected to fastening part 52 ' spacing, can by clamping portion 43 ' be subjected to fastening part 52 ' pushing each other, reach fixing effect.

Certainly, depend merely on clamping portion and opaque disk and be subjected to the mutually power that produced of extruding enough fixing opaque disk only of fastening part, when removing opaque disk, the operator can pick up easily, often pull out and assemble opaque disk for needs, to carry out the operating personnel of electronic component maintenance or test, allow whole process abbreviate beyond doubt.

When installing one as shown in Figure 6, area is bigger, the more opaque disk 5 of limit number " time; then need to use more clip devices; if install; be with opaque disk 5 with known clip device " aim at the shell fragment gap of each clip device, must expend many times, if with intermediate plate 4 of the present invention " replace; then can be as the mode of above-mentioned embodiment, easily with polygon opaque disk 5 " installation as shown in Figure 7.

The mounted on surface intermediate plate of using according to the mounted on surface mask assembly that the utility model disclosed, except simple in structure, simultaneously, the unique design of clamping portion and chamfered corners more allows the operator can be when installing, arbitrary fine setting distance, in order to installing, dismantling, save the work flow time, by the adjustment of intermediate plate mounting distance, can change the opaque disk mode is installed, more provide the designer more to use elasticity and convenience.

Only the above person only be the utility model preferred embodiment, and the simple equivalent of doing according to the utility model claims and description changes and modification such as, all should still belong in the scope that the utility model patent contains.

Claims

1. mounted on surface intermediate plate that the mounted on surface mask assembly is used, it is characterized in that, wherein aforementioned surfaces installation mask assembly comprises at least two paired aforementioned surfaces installation intermediate plate and conductive material opaque disks, this conductive material opaque disk has a top and rolls over the fastening part that is subjected to that extends by at least two the opposition side springs in this top, and each aforementioned surfaces is installed intermediate plate and comprised:

A construction section that supplies contact and be soldered to a circuit board has a front-end edge and the end edge in contrast to this front-end edge; And

A jig arm section of being extended by the bending of one of above-mentioned front-end edge or end edge comprises a clamping portion and a chamfered corners of being extended by the bending of one of aforementioned construction section front-end edge or end edge.

2. mounted on surface intermediate plate as claimed in claim 1 is characterized in that, the wherein above-mentioned fastening part that is subjected to is formed with an interference protrusion or depression, and this clamping portion then is formed with the depression or the interference protrusion of a corresponding above-mentioned interference projection or depression.

3. mounted on surface intermediate plate as claimed in claim 1 or 2 is characterized in that, wherein above-mentioned jig arm section more comprises the structure enhancing portion that one section parallel above-mentioned clamping portion extends, and above-mentioned chamfered corners is that bending is connected between above-mentioned clamping portion and the said structure enhancing portion.