CN101964457A - Surface mounting metal elastic sheet with bending enhancement part on spring arm - Google Patents
Surface mounting metal elastic sheet with bending enhancement part on spring arm Download PDFInfo
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- CN101964457A CN101964457A CN2009101582583A CN200910158258A CN101964457A CN 101964457 A CN101964457 A CN 101964457A CN 2009101582583 A CN2009101582583 A CN 2009101582583A CN 200910158258 A CN200910158258 A CN 200910158258A CN 101964457 A CN101964457 A CN 101964457A
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Abstract
The invention relates to a surface mounting metal elastic sheet with a bending enhancement part on an elastic arm, which comprises a mounting section for being welded on a substrate and an elastic arm section, wherein the elastic arm section extends from one end of the mounting section and comprises at least one bending enhancement part, and the bending enhancement part can reduce the deformation amount of the most fragile part when the elastic arm section deforms under stress and can disperse the stress to other parts. Thus, the service life of the elastic sheet with the bending enhancement part is prolonged, and moreover, the elastic sheet structure can be maintained to achieve an expected elasticity performance.
Description
[technical field]
Technical field under the present invention is about a kind of surface-mounted elastic sheet, and especially a kind of elastic arm has the mounted on surface metal clips of bending enhancing portion.
[background technology]
The shell fragment that the electronics industry is used always, be with a metal, for example metal sheet such as beryllium copper, phosphor bronze is bent into, and can the surface mount method, solid welding is on a substrate, utilize the metal material of this shell fragment itself, and the elastic force that is had after the bending, during as other element and substrate electric connection, ground connection (grounding), buffering or electromagnetic protection (EMI, electro-magnetic interference) binding, or for battery electrically connect, antenna electrically connects, anti-electromagnetic interference ground connection ... or the like usefulness.A kind of known shell fragment 6 structures are to be bent into by a slice scale copper as shown in Figure 1, have one section construction section 61, and one section elastic arm section 62, and from elastic arm section 62 away from construction section 61 and be roughly parallel to the adsorption section 63 of construction section 61.
So-called surface mounting technology, be by absorption adsorption sections 63 such as suction nozzles and move known shell fragment 6, the predetermined weld pad (pad) that known shell fragment 6 is seated on the substrate is located, and the time through the reflow machine, in modes such as heating, ultrasonic wavess, with the scolding tin fusion that impresses in the weld pad place, and after cooling, construction section 61 is welded on the substrate.Because the mechanical structure and the electric conductivity of known shell fragment 6, make its up between the element of institute's apical grafting (figure does not show) and substrate as mechanical buffering, and also can be with the element of top and other circuit on weld pad and substrate electrically connect effectively.
Yet, in known shell fragment 6 forming processes, elastic arm section 62 needs to cause bending through punching press with construction section 61 adjacents, metallic atom is wherein arranged comparatively disorderly, though reform through processes such as subsequent heat treatment, still may leave a little arrangement flaw, thereby can produce the effect that stress is concentrated at this, stressed the most violent position when making this place become 62 bendings of elastic arm section, and if stressed excessive to the range of linearity that surpasses Hooke's law, cause distortion can not reply, often reduce function of use or cause the original effect of known shell fragment 6 forfeitures out of expection; Even, having very big probability fractureed by stress and unbearably use in elastic arm section 62 bending places if device has the electronic installation of known shell fragment 6 to suffer improper bump, therefore this electronic installation produces fault.
Test according to reality, when shell fragment as shown in Figure 2, itself highly be 2mm, and press down when forcing deformation quantity to be 1mm, through 1000,2000,3000,5000, and 10000 compressings and the release of pressure permanent deformation amount that comes and goes the known shell fragment 6 ' in back be respectively 0.05,0.09,0.15,0.2 and 0.369mm.That is when pressurized and discharge when reaching 3000 times, the permanent deformation amount has reached 15 of volume under pressure, far surpasses general tolerance interval.So, how to guarantee effective performance of shell fragment original function, and improve the defective of above-mentioned known shell fragment, make it overcome the problem that is easy to rupture in each bending place of elastic arm section, use and improve the acceptable maximum downforce upper limit of shell fragment, and prolong shell fragment useful life, be the important topic that breakthrough should further be thought deeply, be made great efforts to industry again.
[summary of the invention]
One of the present invention purpose provides a kind of mounted on surface metal clips that the elastic arm section is born the elastic arm tool bending enhancing portion of the downforce upper limit that improves.
Another purpose of the present invention provides a kind of mounted on surface metal clips that remedies the elastic arm tool bending enhancing portion of the structural strength that the elastic arm section reduces because of bending.
Still a further object of the present invention provides a kind of useful life that prolongs shell fragment, reduces the mounted on surface metal clips of the possible elastic arm tool bending enhancing portion of elastic arm section fracture.
Therefore, the present invention discloses the mounted on surface metal clips that a kind of elastic arm tool bends enhancing portion, and comprising: one section confession is soldered to the construction section of a plate base; And one section elastic arm section of extending from an ora terminalis of this construction section; Wherein, this elastic arm section comprises that at least one section predetermined move towards the bending extension and wherein form one to have along the ribs of the component of this trend along one, when causing this elastic arm section stress and deformation, be subjected to the little bending enhancing portion of remainder deformation quantity of force direction along this.
In sum, announcement of the present invention can reach avoids shell fragment to be out of shape easily, and then loses its effectiveness, effectively prolongs the useful life of shell fragment, and then reduces the electronic device failure probability of installing shell fragment.
[brief description of drawingsfig]
Fig. 1 is the schematic perspective view of the first known shell fragment;
Fig. 2 is the schematic perspective view of the second known shell fragment;
Fig. 3 is the schematic perspective view of first embodiment;
Fig. 4 is the schematic side view of first embodiment;
Fig. 5 is the schematic perspective view of second embodiment;
Fig. 6 is the schematic perspective view of the 3rd embodiment;
Fig. 7 is the schematic perspective view of the 4th embodiment;
Fig. 8 is the schematic side view of the 5th embodiment;
Fig. 9 is the schematic perspective view of the 5th embodiment;
Figure 10 is among the 5th embodiment, has the twice rib front elevational schematic that is subjected to force component along its trend respectively.
[main element symbol description]
1 ... substrate 2,2 ', 2 ", 2 " ', 2 " " ... shell fragment
21,21 ', 21 ", 21 " ' ... construction section 23,23 ', 23 " ' ... the elastic arm section
24,241 ", 242 " ... bending enhancing portion 210 ' ... solid welding hole
231 ', 231 ", 231 " ' ... adsorption section 232 ', 232 " ' ... main elastic arm portion
233 ' ... abutting part 234 " ... the blocking section
235,235 " ... for deflection arm 236 " ' ... recessed rib
237 " " ... rib 238 " ... limiting section
242,242 ' ... ribs 6,6 ' ... known shell fragment
61... construction section 62... elastic arm section
63... adsorption section
[embodiment]
The present invention can be used for electrically connect one substrate and other adaptation element, and can be used as the usefulness of electromagnetic protection.About aforementioned and other technology contents, characteristics and effect of the present invention, in the detailed description of the preferred embodiment of following cooperation Figure of description, can clearly present.And for the purpose of explanation, below various shell fragments except that for being soldered to the construction section of circuit substrate, the various complex deformations that construction section is above all are referred to as with the elastic arm section, as for various shell fragment elastic arm sections difference each other, do not enumerate one by one in the present invention.
Please refer to the shell fragment 2 shown in Fig. 3,4, this shell fragment 2 is to be bent into copper sheet, and supplies to utilize the solid welding of surface mount method to substrate 1, and utilizes these shell fragment 2 conductive material own to supply to carry out electrically connect; But it comprises the elastic arm section 23 that has elasticity recovery after one section construction section 21 and the one section bending, and this elastic arm section 23 has one section bending enhancing portion 24 according to the bending of elastic arm section 23 bearing of trends.This section bending enhancing portion 24 not only is close to construction section 21, in this example, more be illustrated as twice ribs 242, when elastic arm section 23 is subjected to one during along downforce that downward direction shown in Figure 4 applies, because bending enhancing portion 24 has ribs 242 as supporting, be difficult for stress and deformation, these deformation quantities will be born by the deflection arm 235 that supplies of elastic arm section 23, and because of the type body be a long-armed shape to bend enhancing portion 24 for deflection arm 235 length own long, required in the per unit length to share the deformation quantity that bears equally lower, is difficult for surpassing the limit of Hooke's law.
Certainly, as be familiar with present technique field person and can understand easily, the ribs number of above-mentioned bending enhancing portion should not limit, please refer to shell fragment 2 ' shown in Figure 5, construction section 21 ' also is for being soldered on the substrate, wherein and be formed with a solid welding hole 210 ' that sees through, increases by this solid welding effect for scolding tin.In this example, elastic arm section 23 ' has one section main elastic arm portion 232 ' and is illustrated as the bending enhancing portion of one ribs 242 ', though in this example, shell fragment 2 ' has only ribs 242 ' one, but can reach the effect of precedent bending enhancing portion equally, utilize the above-mentioned smooth adsorption section 231 ' that is roughly parallel to below construction section 21 ', use for absorption convenient mobile exactly shell fragment 2 ' to presetting the place, and see through abutting part 233 ' binding substrate and other adaptation element.
And in the reality test, effect via said structure enhancing portion, shell fragment as shown in Figure 5 with Fig. 2 the same terms under, press down when forcing deformation quantity to be 1mm, through 1000,2000,3000,5000, and after 10000 compressings and release of pressure come and go, the permanent deformation amount of shell fragment is respectively 0.05,0.06,0.09,0.13 and 0.145mm.By contrast, after increasing structure enhancing portion, even exerting pressure and discharge, repetitiousness reaches 10,000 times, its deformation quantity still is less than when not having this enhancing portion, presses-put the distortion after 3,000 times, especially at shell fragment gradually under the microminiaturization, the structure of bending part is often littler, the fragile structure situation more very in the past, via the announcement of this case, can significantly promote the shell fragment product durability, guarantee that its life-span and structure meet expection.
Certainly, as be familiar with present technique field person and can understand easily, among the present invention, also can be used in the elastic piece structure of other variform in order to the bending enhancing portion that strengthens the bending of elastic arm section or all the other easy deformation positions.So as shown in Figure 6, this routine shell fragment is a kind of guiding type shell fragment 2 that seals "; and after being soldered to circuit board; be positioned at the adsorption section 231 at top " just become this shell fragment 2 " bear the abutting part that presses down strength and contact with upper element; and the adsorption section 231 at top " towards construction section 21 " extend one section bending enhancing portion 241 ", continue to extend a limiting section 238 that is formed with perforation downwards ".
Relatively, construction section 21 " corresponding to limiting section 238 " direction then extend upward one section blocking section 234 "; blocking section 234 " passing this limiting section 238 " perforation after downward reflexed, return this construction section 21 " in the welding hole position for and construction section 21 " together be soldered to the weld pad on the circuit board.So, by blocking section 234 " with limiting section 238 " mutually interfere make this adsorption section 231 " only can move in the vertical direction and can't be towards parallel this construction section 21 " the direction free deflection.In this example, the whole elastic arm of shell fragment comprises one section for deflection arm 235 "; and supplying deflection arm 235 between this " and construction section 21 " between; also be formed with one section bending enhancing portion 242 ", by two places bendings enhancing portion 241 ", 242 ", make shell fragment 2 " when stressed pressing down and deformation; stress and strain are dispersed to predetermined for deflection arm 235 " etc. the place, significantly bend and the structurally fragile deformation quantity of locating thereby slow down this shell fragment script, thus the useful life of prolongation shell fragment itself.
Similarly, with reference to the 4th and the 5th embodiment shown in Fig. 7,8,9, only some elementary errors is different among these two kinds of embodiment, among the 4th embodiment, shell fragment 2 " ' elastic arm section 23 " ' also have one section main elastic arm portion 232 " ' and recessed rib 236 as ribs is arranged together " ' from a smooth adsorption section 231 " ' towards construction section 21 " ' extend.Fig. 9 and the 5th embodiment shown in Figure 10, this shell fragment 2 " " ribs be the rib 237 that twice are pressed from both sides an angular cross each other " ", similarly, because rib 237 " " move towards direction at the shell fragment shown in Figure 10 dotted line, still have along the reinforcement of this trend and can increase stressed, make shell fragment have structure and strengthen, avoid taking place easily the risk of permanent deformation, can reach the effect of precedent and do not hinder in its most fragile part in direction along its trend.
In sum, the mounted on surface metal clips of disclosed elastic arm tool bending enhancing portion not only can slow down the useful life that the elastic arm section is born the deformation of downforce, prolonged shell fragment, more can avoid shell fragment because of being subjected to the external force collision torsional deformation; Also can select to strengthen the structural strength of shell fragment and other adaptation element engage top.Yet the above only is the embodiment of the invention, can not limit scope of the invention process with this.That is, all simple equivalent of being done according to claims of the present invention and description of the invention content change and modify, and all still belong in the scope that patent of the present invention contains.
Claims (7)
1. the mounted on surface metal clips of an elastic arm tool bending enhancing portion is characterized in that, comprising:
One section confession is soldered to the construction section of a plate base; And
One section elastic arm section of extending from an ora terminalis of this construction section;
Wherein, this elastic arm section comprises that at least one section predetermined move towards the bending extension and wherein form one to have along the ribs of the component of this trend along one, when causing this elastic arm section stress and deformation, be subjected to the little bending enhancing portion of remainder deformation quantity of force direction along this.
2. mounted on surface metal clips as claimed in claim 1 is characterized in that, wherein this elastic arm section comprises one section smooth adsorption section that is parallel to this construction section.
3. mounted on surface metal clips as claimed in claim 2, it is characterized in that, wherein this elastic arm section comprises that more one section links and the main elastic arm portion between between this smooth adsorption section and this construction section, and this bending enhancing portion to be oneself this smooth adsorption section bend extension away from this main elastic arm portion ora terminalis towards this construction section.
4. mounted on surface metal clips as claimed in claim 3 is characterized in that, wherein this elastic arm section more comprises one section abutting part that is extended towards this construction section away from this smooth adsorption section ora terminalis by this bending enhancing portion; And this shell fragment more comprise one section by this construction section away from the ora terminalis that is extended with this elastic arm section towards this smooth adsorption section direction extend and with this abutting part interfere mutually, make this smooth adsorption section can along near with can't be away from this construction section direction moves towards the blocking section of parallel this construction section direction deflection.
5. mounted on surface metal clips as claimed in claim 1 is characterized in that, wherein this elastic arm section comprises one section for the deflection arm, and this bending enhancing portion is binding and between between this confession deflection arm and this construction section.
6. as claim 1,2,3,4 or 5 described mounted on surface metal clipss, it is characterized in that wherein this ribs is at least one to move towards the recessed rib that extends along this.
7. as claim 1,2,3,4 or 5 described mounted on surface metal clipss, it is characterized in that wherein this ribs is that twice have along the component of this trend respectively and press from both sides the rib of an angular cross each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101582583A CN101964457A (en) | 2009-07-23 | 2009-07-23 | Surface mounting metal elastic sheet with bending enhancement part on spring arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101582583A CN101964457A (en) | 2009-07-23 | 2009-07-23 | Surface mounting metal elastic sheet with bending enhancement part on spring arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101964457A true CN101964457A (en) | 2011-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101582583A Pending CN101964457A (en) | 2009-07-23 | 2009-07-23 | Surface mounting metal elastic sheet with bending enhancement part on spring arm |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881475A (en) * | 2012-09-29 | 2013-01-16 | 苏州鑫捷顺五金机电有限公司 | Elastic piece used for touch screen switch |
| CN103165991A (en) * | 2011-12-16 | 2013-06-19 | 三星电子株式会社 | Ground device and portable terminal having the same |
| CN103474789A (en) * | 2013-09-10 | 2013-12-25 | 昆山市巴城镇顺拓工程机械配件厂 | Clamp used for fixing cable |
| CN106785765A (en) * | 2016-12-21 | 2017-05-31 | 广东金莱特电器股份有限公司 | A kind of conductive components for the rotation of 360 ° of electric fan |
| CN111194509A (en) * | 2017-10-09 | 2020-05-22 | 罗伯特·博世有限公司 | Method and device for producing an electrically conductive connection between a conductor rail and an electrical conductor |
| CN116315322A (en) * | 2023-05-18 | 2023-06-23 | 宁德新能源科技有限公司 | Electrochemical device and electronic device |
-
2009
- 2009-07-23 CN CN2009101582583A patent/CN101964457A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103165991A (en) * | 2011-12-16 | 2013-06-19 | 三星电子株式会社 | Ground device and portable terminal having the same |
| US9320132B2 (en) | 2011-12-16 | 2016-04-19 | Samsung Electronics Co., Ltd. | Ground device and portable terminal having the same |
| CN103165991B (en) * | 2011-12-16 | 2017-03-01 | 三星电子株式会社 | Grounding device and the portable terminal with this grounding device |
| CN102881475A (en) * | 2012-09-29 | 2013-01-16 | 苏州鑫捷顺五金机电有限公司 | Elastic piece used for touch screen switch |
| CN102881475B (en) * | 2012-09-29 | 2014-12-31 | 苏州鑫捷顺五金机电有限公司 | Elastic piece used for touch screen switch |
| CN103474789A (en) * | 2013-09-10 | 2013-12-25 | 昆山市巴城镇顺拓工程机械配件厂 | Clamp used for fixing cable |
| CN106785765A (en) * | 2016-12-21 | 2017-05-31 | 广东金莱特电器股份有限公司 | A kind of conductive components for the rotation of 360 ° of electric fan |
| CN106785765B (en) * | 2016-12-21 | 2022-09-06 | 广东金莱特电器股份有限公司 | A conductive component for 360 rotations of electric fan |
| CN111194509A (en) * | 2017-10-09 | 2020-05-22 | 罗伯特·博世有限公司 | Method and device for producing an electrically conductive connection between a conductor rail and an electrical conductor |
| CN111194509B (en) * | 2017-10-09 | 2022-09-06 | 罗伯特·博世有限公司 | Method and device for producing an electrically conductive connection between a conductor rail and an electrical conductor |
| CN116315322A (en) * | 2023-05-18 | 2023-06-23 | 宁德新能源科技有限公司 | Electrochemical device and electronic device |
| CN116315322B (en) * | 2023-05-18 | 2023-08-25 | 宁德新能源科技有限公司 | Electrochemical device and electronic device |
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| C06 | Publication | ||
| PB01 | Publication | ||
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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: 20110202 |