CN203774510U - Single-chip surface mounting telescoping spring plate and surface mounting assembly with the same - Google Patents

Abstract

The utility model relates to a single-chip surface mounting telescoping spring plate comprising a welding segment with an outer side edge and a telescoping segment bending and extending from the outer side edge. The telescoping segment has a first end portion bending and extending from the outer side edge, a second end portion opposite to the first end portion, a plurality of spacing zones extending at an included angle with the welding segment, and flexible advancing and retreating zones respectively connected with the spacing zones by bending at the two ends; projections of the spacing zones connected to the two ends of the flexible advancing and retreating zones correspond to different positions of the welding segment. In addition, the single-chip surface mounting telescoping spring plate also includes a contact segment bending from the second end portion of the telescoping segment, a protection frame segment bending from the outer side edge and extending towards the direction far away from the welding segment, and a height limiting segment bending and extending from the fourth end portion of the protection frame segment; the protection frame segment is arranged at the outer sides of the flexible advancing and retreating zones; and the height limiting segment is used for providing the limiting function when the contact segment stretches relatively to the welding segment.

Description

The surface mount component of flexible shell fragment and this shell fragment of tool is installed on one chip surface

[technical field]

The utility model is about a kind of surface-mounted elastic sheet, and particularly the surface mount component of stretching shell fragment and this shell fragment of tool is installed on a kind of one chip surface.

[background technology]

Surface-mounted elastic sheet, in electronic-circuit device, is applied quite extensively, is no matter ground connection, signal conducting, shielding, heat conduction or as mechanical support, all has place to show one's prowess.Common shell fragment is many to be formed through punching press bending by a slice sheet metal as thin as a wafer, its manufacture process is that in first beryllium copper, phosphor bronze or the stainless steel roll coil of strip reeling, punching press cuts out desired structure size, carry out punch process via for example multi-shaft precise processing machine subsequently, by repeatedly bending forming of the sheet metal after cutting, for avoid beryllium copper or phosphor bronze to get rusty or for make welding more firm, also can be at plating nickel on surface or gold-plated; Selecting basic metal if reduce costs is stainless steel, for improveing its conductivity, also can be in surface gold-plating, and now gold-plated thickness will be controlled at about micrometer range.Because the volume of shell fragment is very little, requirement is many again, and the mode of above-mentioned plated film is normally put into cylinder by the gross by the workpiece being plated, and cylinder overturns in coating bath, allows work piece surface plated film, and this kind of mode be called barrel plating.

The common a kind of surface-mounted elastic sheet of industry at present, it is the patent " surface-mounted elastic sheet of tool supporting section and screening resistance adsorption section " that is proposed and get permission through examination by applicant, structure as shown in Figure 1, shell fragment mainly comprises: one section of construction section 80, one section of elasticity reflexed section 82, one section of elastic arm section 84, one section of supporting section 86 and one section of screening resistance adsorption section 88, this patent is mainly to stop elastic arm section 84 by hiding resistance adsorption section 88, unexpected deformation when avoiding each shell fragment to act in collusion or pullled by foreign object, and in the time of stressed pressing down, disperse downforce to supporting section 86, strengthening buffering effect and maintain the effective utilization of known shell fragment.

But the elastic arm section 84 of this kind of shell fragment is along the bending of single pivot, while making that elastic arm section 84 is stressed shrinks back, the contact site on top can follow under circular arc along pivot curved, causes the skew of horizontal direction.When electronic-circuit device more compact, each circuit element or contact port are microminiaturized gradually, this kind of horizontal direction skew increases the impedance that makes conductive contact, even causes the upper and lower component arrangement that keep in touch relatively to stagger and open circuit, and therefore cannot use in specific occasion.

Another kind can be advanced and retreat flexible shell fragment as shown in Figures 2 and 3 by straight line, thimble 92, spring 94 and the bonnet 96 by metal material, sequentially be assembled in the housing 90 of plastic jetting forming, allow thimble 92 heads stretch out pressurized by housing 90 tops, 96 of bonnets are for being soldered in the circuit board (not shown) of bottom, the transmission of electric signal or ground connection are to connect to spring 94 via thimble 92, and spring 94 connects to bonnet 96 again, form the conducting of above-below direction.But this kind of structure assembled very complicated first, and spring 94 is the adsorbable surface of tool not, can not use common suction nozzle absorption to move, roughly be the external form of column type, be difficult for again accurately clamping with mechanical arm, making the overall package cannot automation, be that output efficiency or assembling yield all have suitable room for improvement, and cost is also therefore high.

Another aspect, due between thimble 92 and spring 94 and spring 94 and bonnet 96, is to be all subject to elastic force pushing and pressing contact, and one side script just cannot guarantee good conductive; What is worse, when product long term exposure is in air, each parts are subject to oxygen and moisture effect and are oxidized, and will overall conducting effect more be had a greatly reduced quality, and make production reliability with successively decreasing service time.

So, how to find out suitable solution, can guarantee on the one hand the good conductive effect of product, and effectively avoid laterally offset, coordinate the microminiaturized trend trend of electronic-circuit device, especially can automated production manufacture, allow the output efficiency of product be promoted; And simplification product structure, makes the comprehensive automation in the course of processing become feasible; More can optionally increase insulation shell and support, make product to increase use elasticity in response to different user demands, by the main points that become the utility model and focus on.

[utility model content]

One of the utility model object main purpose, is to provide a kind of flexible shell fragment of one chip surface installation of effectively avoiding laterally offset, can guaranteeing again the good conductive effect of product.

Another object of the utility model, is to provide the one chip surface that a kind of manufacture process can comprehensive automation flexible shell fragment is installed, and promotes output efficiency.

An object more of the present utility model, is to provide a kind of one chip simple in structure surface flexible shell fragment is installed, and allows fine ratio of product effectively improve, cost thereby reduction.

The utility model is another object again, be to provide a kind of have protect frame section and only the one chip surface of high spacing section flexible shell fragment is installed, make to carry by the gross or the barrel plating course of processing in, can not play into each other's hands and be difficult to resolve.

The utility model object more again, is to provide a kind of surface mount component that flexible shell fragment is installed on one chip surface that has, and with one chip surface, flexible shell fragment coordinated insulation housing is installed, and higher mechanical strength is provided, and allows use occasion have more elasticity.

The utility model object more still again, be to provide the surface mount component that a kind of manufacture process can comprehensive automation, the combination that allows one chip surface that flexible shell fragment and insulation shell are installed still can be listed automatic flow in, promotes output efficiency and reduces manufacturing cost.

Flexible shell fragment is installed on a kind of one chip surface of disclosing according to the utility model, is to be made up of unitary piece of metal, and for being soldered to a circuit board, this one chip surface is installed flexible shell fragment and comprised: the welding section with a lateral border; At least one telescopic section, has by a first end of above-mentioned lateral border bending extension, the second end contrary with this first end, multiple and above-mentioned welding section and presss from both sides spacer region and the multiple flexible advance and retreat district that links respectively aforementioned spacer region with two ends bending that an angle is extended; Wherein, the projection of the aforementioned spacer region that each two ends, aforementioned flexible advance and retreat district connects, is the different position that corresponds to this welding section; At least one is by the contact-segment of above-mentioned telescopic section the second end bending; At least one is bent, and is protected frame section towards what extend away from this welding section direction by above-mentioned lateral border, this protects frame section is the outside that is positioned at above-mentioned flexible advance and retreat district, and has by one the 3rd end of above-mentioned lateral border bending extension and four end contrary with the 3rd end; And at least one protects only high spacing section that the 4th end bending of frame section is extended by above-mentioned, in order to spacing above-mentioned contact-segment, make above-mentioned contact-segment in the time that this welding section is flexible relatively, be limited and cannot depart from.

A kind of surface mount component with the flexible shell fragment of one chip surface installation disclosing according to the utility model, for being soldered to a circuit board, this surface mount component comprises:

Flexible shell fragment is installed at least one one chip surface, is to be made up of unitary piece of metal, and for being soldered to a circuit board, this one chip surface is installed flexible shell fragment and comprised

There is the welding section of a lateral border;

At least one telescopic section, has by a first end of above-mentioned lateral border bending extension, the second end contrary with this first end, multiple and above-mentioned welding section and presss from both sides spacer region and the multiple flexible advance and retreat district that links respectively aforementioned spacer region with two ends bending that an angle is extended; Wherein, the projection of the aforementioned spacer region that each two ends, aforementioned flexible advance and retreat district connects, is the different position that corresponds to this welding section;

At least one is by the contact-segment of above-mentioned telescopic section the second end bending;

At least one is bent, and is protected frame section towards what extend away from this welding section direction by above-mentioned lateral border, this protects frame section is the outside that is positioned at above-mentioned flexible advance and retreat district, and has by one the 3rd end of above-mentioned lateral border bending extension and four end contrary with the 3rd end; And

At least one protects only high spacing section that the 4th end bending of frame section is extended by above-mentioned, in order to spacing above-mentioned contact-segment, makes above-mentioned contact-segment in the time that this welding section is flexible relatively, is limited and cannot depart from; And

One group of insulation shell; comprise two combination half portions; each aforementioned combination half portion has respectively a protective side wall and is extended and the linking arm being connected that corresponds to each other by aforementioned protective side wall, and aforementioned linking arm is corresponding spacing section of the above-mentioned only height that supports at least partly.

Because shell fragment of the present utility model is only to be formed by single metal sheet punching press bending, do not have complicated structure, the automation of manufacture process is become feasible, can effectively promote output efficiency; Moreover structural design of the present utility model is simple, not only allow fine ratio of product effectively improve, cost also synchronously reduces; Especially there is the frame of protecting section and only high spacing section, in the time that pressurized is shunk back, can effectively avoid laterally offset or deformation damage, to guarantee the good conductive effect of product, shell fragment reliability thereby lifting; In addition, if through above-mentioned barrel plating processing procedure, protect frame section and only high spacing section can further stop between workpiece and play into each other's hands and be difficult to resolve again.

In addition, when shell fragment microminiaturization and reduced volume gradually, when structural strength is phased down, if desired firmer elastic piece structure, the utility model also further provides a kind of surface mount component that flexible shell fragment is installed on one chip surface that has, with one chip surface, flexible shell fragment coordinated insulation housing is installed, higher mechanical strength is provided, allow use occasion have more elasticity; And this kind of assembly be also to coordinate comprehensive automation, still possess higher output efficiency and fine ratio of product preferably, reach above-mentioned projects at one stroke.

[brief description of the drawings]

Fig. 1 is the surface-mounted elastic sheet structural upright schematic diagram of the utility model applicant's formerly patent.

Fig. 2 and Fig. 3 be existing can straight line stereo decomposing and the side cross-sectional schematic of the flexible shell fragment of advance and retreat, mainly, by thimble and the spring of metal material, group is located among housing and bonnet.

Fig. 4 is that the schematic perspective view of flexible shell fragment the first preferred embodiment is installed on the utility model one chip surface;

Fig. 5 is that the sheet metal of Fig. 4 embodiment launches schematic diagram;

Fig. 6 is the schematic side view of Fig. 4 embodiment, when pressurized is described, only how protects and is positioned at the unlikely excessive pressurized of central contact-segment and damages for high spacing section;

Fig. 7 is the schematic top plan view of Fig. 4 embodiment, only illustrates and how to protect contact jaw can not be offset for high spacing section;

Fig. 8 is the bottom view of Fig. 4 embodiment, illustrates that the projection of each spacer region corresponds to the position relationship of welding section;

Fig. 9 is the decomposing schematic representations of application drawing 4 shell fragments in surface mount component the first preferred embodiment; And

Figure 10 is the second preferred embodiment schematic perspective view of the utility model surface mount component.

[symbol description]

Flexible shell fragment 1 unitary piece of metal 10 is installed on one chip surface

Welding section 11 lateral borders 110

Telescopic section 12 first ends 122

The second end 124 spacer regions 126

Flexible advance and retreat district 128 contact-segments 13,33

Pull protuberance 130 tension edge 132

Protect frame section 14 the 3rd end 142

The 4th end 144 fins 140

Only high spacing section of 15 insulation shells 2

Spacing hole 150 combines half portion 22,24

Protective side wall 220,240 is connected arm 222,242

The single frame section 34 of protecting of Restricted Contact section 33

Single only high spacing section of 35 auxiliary guards frame sections 36

Construction section 80 elasticity reflexed sections 82

Elastic arm section 84 supporting sections 86

Hide resistance adsorption section 88 thimbles 92

Spring 94 bonnets 96

Housing 90

[embodiment]

About aforementioned and other technology contents, feature and effect of the present utility model, in the detailed description of the following preferred embodiment that coordinates Figure of description, can know and present; In addition,, in each embodiment, identical element or step will represent with similar label.

Flexible shell fragment 1 is installed on one chip of the present utility model surface, as shown in Figures 4 and 5, to be made by unitary piece of metal 10, in this example, this one chip surface install flexible shell fragment 1 comprise a welding section 11, one section by welding section 11 lateral borders 110 bend the telescopic section 12 of extension, the contact-segment 13, two sections that bend extension by telescopic section 12 bend by welding section 11 lateral borders 110 and bend only high spacing section 15 of extension by the aforementioned frame section 14 of protecting respectively towards protect frame section 14 and two sections that extend away from this welding section direction.

Welding section 11 is for the weld pad being soldered on circuit board, therefore have the bottom surface of general planar and the metal surface close with the surface energy of scolding tin, in this example, the exterior contour of welding section 11 is roughly rounded, for ease of explanation, claim that this part that is roughly circumference is lateral border 110.Lateral border 110 in this example is outward extended with a telescopic section 12, certainly, as is familiar with the art personage and can understands easily, when welding section 11 areas are when larger, multiple telescopic sections also can be set and not hinder.

For ease of explanation, the one end that bends extension by above-mentioned lateral border 110 is in this example called the first end 122 of telescopic section 12, is called the second end 124 away from the end of welding section 11 on the contrary mutually with this first end 122, this example, between first end 122 and the second end 124, has the spacer region 126 of three sections of each intervals and two sections link respectively aforementioned spacer region 126 flexible advance and retreat district 128 with two ends bending; Due in this example, between spacer region 126 and welding section 11 and spacer region 126 and flexible advance and retreat district 128, be all that example is interpreted as right angle bending, make each flexible advance and retreat district 128 almost parallel each other, be also roughly parallel to respectively welding section 11.124 of the second ends of telescopic section 12 further bend and extend contact-segment 13.

By the lateral border 110 of welding section 11, another bending and court are for example extended with and two protect frame section 14 away from welding section 11 directions, because each section in this example flexible advance and retreat district 128 is planned to for example 3/4 circumference, and external diameter is slightly less than welding section 11, make to protect frame section 14 with the bending of substantially vertical direction after, will be positioned at the outside in all above-mentioned flexible advance and retreat district 128.Therefore in the time that shell fragment manufacture process is carried out for example above-mentioned barrel plating or shell fragment finished product pack carrying; protect frame section 14 by the opening portion by 128, the each flexible advance and retreat of outer protection district; avoid size only the shell fragment of 1,2 millimeter interfere each other blocking; reduce the risk of pullling damage product when being difficult to after mutually interfering to untie, even separating with manpower, thus output yield when improving product automation.Certainly, under space license, arrange three, four protect frame Duan Yiwu can not; Even and the gabarit in flexible advance and retreat district is not less than welding section, also can protects the size of frame section and reach the effect of the interval opening of the flexible advance and retreat of protection by expansion.

For ease of explanation, protect one end that frame section 14 bends extension from lateral border 110 and be called the 3rd end 142 and be called the 4th end 144 in contrast to the end of the 3rd end 142 above-mentioned herein.Two the 4th ends 144 in this example bend respectively once again extends one section only high spacing section 15, therefore please also refer to shown in Fig. 6-8, aforementioned two sections of high spacing section 15 spacing holes 150 that can jointly define aforementioned contact-segment 13 telescopic movings of confession only, make in the time that contact-segment 13 is subject to downforce and shrinks back downwards, can be subject to stopping the limitation of high spacing section 15 and cannot depart from easily center, guaranteeing that by this good location when upper element device presses down connects.

Another aspect, in the time pressing down the height and position that reaches only high spacing section 15, except telescopic section originally 12 meeting stress and deformations are shunk back, the protecting frame section 14 and also can share and bear downforce of both sides, make excessively to press down and damage the Risk Reduction of telescopic section 12 or contact-segment 13, the reliability when improving product structure intensity and using.

Another aspect again, contact-segment 13 in this example can further be distinguished and comprise a tension edge 132 that extends self extending section 12 the second ends 124, an and pull protuberance 130 that is arranged in aforementioned tension edge 132, wherein this tension edge 132 is excessively stretched to corresponding to above-mentioned while protecting frame section 14 in this telescopic section 12, can be subject to above-mentioned only high spacing period 15 stop, accidentally collude with the opening in spacer region 126 and flexible advance and retreat district 128 if still have other wires or circuit element, and while wanting to pull telescopic section 12 and contact-segment 13 hyper-extended, equally can be by the internal diameter that stops high spacing section 15, stop unlikely excessively the stretching easily of contact-segment 13 and cause permanent deformation.

Because the each flexible advance and retreat district 128 of this example is respectively around approximately 3/4 circumference, make the spacer region 126 that connects each flexible advance and retreat district 128 in the bottom view of Fig. 8, can find out the diverse location that can correspond to respectively welding section 11, this kind of spatial relationship that projecting direction staggers mutually, also when making contact-segment 13 be subject to downforce effect and allowing telescopic section 12 shrink back, shrink back in each flexible advance and retreat district 128 respectively bending, contact-segment 13 thereby can roughly maintain straight line and press down can be significantly partial to.As previously mentioned, after bending, can will now the beryllium copper of monolithic or stainless steel material punching press be bent to the semi-finished product that form as basal layer, shape through for example heat treated, insert again barrel plating, make this basal layer outer cladding one deck for example the gold of several microns as auxiliary layer, reach above-mentioned antirust, increase conductivity or the easy effect of weldering.

Further, because current circuit element is constantly microminiaturized, in the time of overall shell fragment size minimization, the metal material using cannot have thickness in the past, otherwise will be difficult for bending manufacture, but on the contrary, in circuit design, but sometimes need preferably mechanical strength, the flexible shell fragment 1 of one chip of the present utility model surface installation can be as shown in Figure 9, coordinating example is used as one group of insulation shell 2, in this example, this insulation shell 2 comprises combination half portion 22 of two plastic jetting formings, 24, each aforementioned combination half portion 22, 24 have respectively a protective side wall 220, 240 and by aforementioned protective side wall 220, 240 extend and the linking arm 222 being connected that corresponds to each other, 242, in this example, be connected arm 222, 242 positions that correspondence is connected mutually, to be positioned at the above-mentioned only below of high spacing section 15, make when downforce excessive and while causing contact-segment 13 to retreat to only high spacing section 15 completely, only high spacing section 15 can obtain linking arm 222, 242 support, more be difficult to fail in compression, especially protect the structural strength of frame section 14 for improving, each protects and in frame section 14, is formed with more respectively the fin 140 extending along short transverse together.

Because each aforementioned combination half portion 22,24 has respectively a protective side wall 220,240; smooth protective side wall 220,240 still can or draw for automatic manipulator absorption; the combination that allows one chip surface that flexible shell fragment 1 and insulation shell 2 are installed still can be listed automatic flow in, promotes output efficiency and reduces manufacturing cost.

Certainly, person skilled in the art can understand easily, the above-mentioned frame section of protecting is not limited to two, when shell fragment hour, also can be as shown in figure 10, single frame section 34 and single only high spacing section 35 of protecting is set separately, and by single only high spacing section 35 further bending is downwards again, form corresponding to single auxiliary guards frame section 36 of protecting frame section 34, and separately by single position of stopping high spacing section of 35 Restricted Contact sections 33.

Only as described above, only preferred embodiment of the present utility model, when not limiting the scope that the utility model is implemented with this, generally do simple equivalence according to the utility model claims and description and change and modification, all still belong in the scope that this patent contains.

Claims (6)

1. a flexible shell fragment is installed on one chip surface, is to be made up of unitary piece of metal, and for being soldered to a circuit board, it is characterized in that, this one chip surface is installed flexible shell fragment and comprised:

There is the welding section of a lateral border;

At least one telescopic section, has by a first end of above-mentioned lateral border bending extension, the second end contrary with this first end, multiple and above-mentioned welding section and presss from both sides spacer region and the multiple flexible advance and retreat district that links respectively aforementioned spacer region with two ends bending that an angle is extended; Wherein, the projection of the aforementioned spacer region that each two ends, aforementioned flexible advance and retreat district connects, is the different position that corresponds to this welding section;

At least one is by the contact-segment of above-mentioned telescopic section the second end bending;

At least one is bent, and is protected frame section towards what extend away from this welding section direction by above-mentioned lateral border, this protects frame section is the outside that is positioned at above-mentioned flexible advance and retreat district, and has by one the 3rd end of above-mentioned lateral border bending extension and four end contrary with the 3rd end; And

At least one protects only high spacing section that the 4th end bending of frame section is extended by above-mentioned, in order to spacing above-mentioned contact-segment, makes above-mentioned contact-segment in the time that this welding section is flexible relatively, is limited and cannot depart from.

2. flexible shell fragment is installed on one chip as claimed in claim 1 surface, it is characterized in that, wherein the above-mentioned frame section of protecting is at least two, and each is aforementioned protects frame section and bends respectively and be extended with one only high spacing section, and aforementioned only high spacing section of spacing hole that jointly defines an aforementioned contact-segment telescopic moving of confession.

3. flexible shell fragment is installed on one chip as claimed in claim 1 or 2 surface, it is characterized in that, wherein aforementioned contact-segment further comprises the tension edge of an extension from this telescopic section the second end, an and pull protuberance that is arranged in aforementioned tension edge, wherein this tension edge is excessively stretched to corresponding to above-mentioned while protecting frame section in this telescopic section, can be subject to above-mentioned only high spacing period stop.

4. flexible shell fragment is installed on one chip as claimed in claim 1 or 2 surface, it is characterized in that, wherein above-mentioned unitary piece of metal further comprises a basal layer and is plated on the auxiliary layer outside this basal layer.

5. flexible shell fragment is installed on one chip as claimed in claim 1 or 2 surface, it is characterized in that, more comprises that bending extension is from the above-mentioned only auxiliary guards frame section of high spacing section.

6. have the surface mount component that flexible shell fragment is installed on one chip surface, for being soldered to a circuit board, it is characterized in that, this surface mount component comprises:

Flexible shell fragment is installed at least one one chip surface, is to be made up of unitary piece of metal, and for being soldered to a circuit board, this one chip surface is installed flexible shell fragment and comprised

There is the welding section of a lateral border;

At least one telescopic section, has by a first end of above-mentioned lateral border bending extension, the second end contrary with this first end, multiple and above-mentioned welding section and presss from both sides spacer region and the multiple flexible advance and retreat district that links respectively aforementioned spacer region with two ends bending that an angle is extended; Wherein, the projection of the aforementioned spacer region that each two ends, aforementioned flexible advance and retreat district connects, is the different position that corresponds to this welding section;

At least one is by the contact-segment of above-mentioned telescopic section the second end bending;

At least one is bent, and is protected frame section towards what extend away from this welding section direction by above-mentioned lateral border, this protects frame section is the outside that is positioned at above-mentioned flexible advance and retreat district, and has by one the 3rd end of above-mentioned lateral border bending extension and four end contrary with the 3rd end; And

At least one protects only high spacing section that the 4th end bending of frame section is extended by above-mentioned, in order to spacing above-mentioned contact-segment, makes above-mentioned contact-segment in the time that this welding section is flexible relatively, is limited and cannot depart from; And

One group of insulation shell; comprise two combination half portions; each aforementioned combination half portion has respectively a protective side wall and is extended and the linking arm being connected that corresponds to each other by aforementioned protective side wall, and aforementioned linking arm is corresponding spacing section of the above-mentioned only height that supports at least partly.