CN2163455Y - Plug slot connector of printed substrate - Google Patents

Abstract

The utility model relates to the slot connector of a printing circuit board used for fixing a subboard and generating electrical connection state between the subboard and a motherboard. An inner conducting strip and an outer conducting strip are connected by the connecting material belt of the conducting strip, and after the inner conducting strip and the outer conducting strip are directly assembled into the inserting ditch of the conducting strip one-step by a body bottom, the space between the connecting material belt and the feet of the inner conducting strip and the outer conducting strip is utilized to fold the connecting material belt of the conducting strip backwards and forwards with a mechanical action so that the connecting material belt is separated from the conducting strip. The inner conducting strip foot is longer than the outer conducting strip foot, and furthermore, a reinforcing bulge used for increasing the supporting strength of the conducting strip is arranged between the proper position below the position in which the conducting strip is contacted with the subboard, and the position below the turnover position in which the conducting strip is contacted with an inner wall.

Description

Plug slot connector of printed substrate

The utility model relates to a kind of printed circuit board (PCB) connector, and especially a kind of have the special construction conducting strip and have daughter board fixture, motherboard fixture or in conjunction with the connector of the dual-purpose fixture of the two function.

The design of connector has at present entered high density and has had towards compact trend, in order to adapt to the needs of connector, the design of conducting strip is and then dwindled, but also produced conducting strip and supported hypodynamic phenomenon, for example when daughter board inserts, tiny conducting strip can't stand that because of holding resistance or pressure sink, even there is the situation of whole conducting strip distortion to take place, the conducting strip that has adopt in the daughter board insert division circular arc design or too when parallel gradient makes that daughter board inserts resistance excessive, cause conducting strip sinking shape or distortion, thereby can't reach the logical purpose of electricity.The conducting strip pin is to be symmetric design with outer guide card pin in commonly using in addition, because conducting strip bottom sediment plate hole position is a unified specification, the symmetric shape of conducting strip pin, conducting strip activity space inside and outside pedestal plastic construction partly must cooperate, reach embedding and nibble ditch, cause expecting thick inequality, plastics forming solidify take longer; The thick inequality of meat can cause shrink, uneven and influence outward appearance, in addition to the also difficult control of precision of size.

In addition; being used for the holding structure of fixing connector and motherboard in the structure by general slot device only adopts the design of crosswise fixed, therefore to import motherboard often regular meeting have vertically and rock, be difficult for leading the position and fixing is steady inadequately, have behind the location because of vertical front and back rocking the situation that causes error.In addition, integrally formed retaining column has easy fracture and the uppity shortcoming of degree of tightness (if too tightly then be difficult to insert in the motherboard guide hole, too pine then can't reach the effect that holds) on the plastic base; Moreover, this is integrally formed holds the position that post passes the motherboard guide hole must bear the high temperature of tin liquor when scolding tin, therefore whole plastic base must be with the heat resistant plastice manufacturing together with the part that holds post, but heat resistant plastice costs an arm and a leg, and does not meet cost benefit.

Again, after commonly using in the connector structure daughter board and inserting slot, the contact terminal clamping daughter board of mat groove both sides only between the two, the surface of daughter board and termination contact position all is coated with the thin gold of one deck, because daughter board often must plug by repetitiousness, so the chucking power of contact terminal can not be too high, if chucking power is too high, the then lip-deep thin golden scratch of the repetitiousness Plug Action meeting daughter board of daughter board and contact terminal or wear away, and influence the contact performance of this a connector.The variable thickness of general daughter board causes, slot design in the connector is gone up common all can considering and is held thick slightly daughter board, when only the wide person of slot holds thin daughter board, because contact terminal is not allowed too high chucking power for the foregoing reasons, daughter board vertical both sides after inserting slot produce the space, cause a skew back of daughter board slot to lean on, thereby this slot side that leans to of meeting scratch, generation plastics soft flocks, the monolateral chucking power of the stressed inequality generation of both sides terminal reduce or contact terminal is out of shape or influence electric state or the like the problem of leading to.

The purpose of this utility model is to overcoming the printed circuit board (PCB) connector that above-mentioned shortcoming proposes a kind of novelty.

Printed circuit board (PCB) connector according to this novelty of the present utility model, since connector body and conducting strip contacted position and size restrictions, thereby the conducting strip top outstanding body recess place be provided with first turnover, to strive for that the bigger gradient in daughter board insert division need only apply very little strength when daughter board is inserted and get final product in the insertion groove, reduce the frictional resistance of daughter board and conducting strip contact point and downward pressure; The conducting strip contact point extends in downwards soon and to embed the ditch inwall with the body conducting strip and contact part and establish second turning point and make verticalization of conducting strip again, establishes the reinforcement protuberance from the following appropriate location extension of conducting strip contact point and makes conducting strip can bear bigger resistance and pressure; In order to cooperate motherboard conducting strip hole, pin position and connector volume, long conducting strip pin and outer short conducting strip pin in being designed to, long outer short conducting strip in body cooperates, make the thickness of body plastics average, energy rapid solidification during the body injection molding, improve speed of production and reduce the concavo-convex vestige that shrinks, make flat appearance attractive in appearance.Inside and outside conducting strip connect the strip binding with a conducting strip and is one before assembling, after the strip that directly will be linked with conducting strip from connector body bottom once was fitted into conducting strip and embeds ditch, conducting strip pin and outer conducting strip pin came inflection moving and separate with conducting strip the conducting strip coupling material with respect to the spacing that connects strip with mechanical action in utilizing.Except the improvement of guide card electricity, then optionally plug at least one daughter board fixture or at least one motherboard fixture or at least one dual-purpose fixture or its combination in the body interior appropriate location from body bottom.The daughter board fixture is that a clamping folder can clamp the daughter board that inserts with the not enough chucking power of benefit conducting strip possibility, and prevents that daughter board from producing the logical state of the electricity that vertically rocks, keeps good.The motherboard fixture is then had foot and a warpage branch, connector firmly can be fixed on the motherboard.As for dual-purpose fixture then is that the feature of zygote board binding and motherboard fixture makes it have the fixedly function of daughter board and motherboard concurrently.

For further understanding the technology contents and the purpose effect thereof of the utility model, see also the detailed description and the accompanying drawing thereof of following relevant the utility model preferred embodiment, the accompanying drawing of relevant this embodiment is:

Fig. 1 is the stereogram of the novel embodiment of present embodiment;

Fig. 2 A and Fig. 2 B be respectively the utility model conducting strip connect strip just, end view;

Fig. 3 A and Fig. 3 B are the situation of the utility model conducting strip in body interior;

Fig. 4 A and Fig. 4 B be respectively the utility model daughter board fixture just, end view;

Fig. 5 A, Fig. 5 B, and Fig. 5 C be respectively the utility model motherboard fixture just, end view, and stereogram;

Fig. 6 A and Fig. 6 B be respectively the dual-purpose fixture of the utility model just, end view;

Fig. 7 shows that the daughter board fixture is installed in intrinsic situation;

Fig. 8 is installed in intrinsic situation for the motherboard fixture;

Fig. 9 is installed in intrinsic situation for dual-purpose fixture;

Figure 10 is that above-mentioned three kinds of fixtures are installed on intrinsic side schematic view.

The figure number explanation:

First teat of X daughter board 15 daughter board fixtures

Second teat of Y motherboard 16 daughter board fixtures

1 connector housing, 17 motherboard fixtures

The base portion of 2 grooves, 18 motherboard fixtures

21 embed the foot of ditch 19 motherboard fixtures

The warpage branch of 3 conducting strips, 20 motherboard fixtures

First teat of 31 long conducting strip pin 21 motherboard fixtures

Second teat of 32 short conducting strip pin 22 motherboard fixtures

4 conducting strips link an oblique arc of leading of strip 23 motherboard fixture foots

5 connector grooves are by the secondary foot of face inwall 24 motherboard fixture foots

The daughter board contact point 25 dual-purpose fixtures of 6 conducting strips

The base portion of 7 conducting strip reinforcement protuberances, 26 dual-purpose fixtures

Cranking arm of 8 projection 27 dual-purpose fixtures

The foot of 9 daughter board fixtures, 28 dual-purpose fixtures

The warpage branch of the base portion 29 dual-purpose fixtures of 10 daughter board fixtures

The spring secures rail to sleeper of the 30 dual-purpose fixtures of cranking arm of 11 daughter board fixtures

12 first teats of cranking arm hypotenuse 31 dual-purpose fixtures

Second teat of the spring secures rail to sleeper 32 dual-purpose fixtures of 13 daughter board fixtures

The blocking of 14 daughter board fixtures

See also the stereogram of Fig. 1 the utility model (printed circuit board (PCB) connector) embodiment, comprise a rectangular housing 1, its inside be vertically arranged with the twice opening upwards, in order to the groove 2 of ccontaining daughter board, the vertical both sides of groove are established row's chase respectively, each chase inside is inserted with a conducting strip and passes from the bottom of housing 1, daughter board is inserted behind the groove can these conducting strips of mat see through scolding tin and produce the logical state of electricity with printed wire on the motherboard.

Fig. 2 A and Fig. 2 B are depicted as the state of a series of conducting strips 3 before insert the connector bottom, by this Fig. 2 A as can be known, several conducting strips 3 that long conducting strip pin 31 and short conducting strip pin 32 are set alternately see through and link that strip 4 is combined as a whole so that will the row of putting in order conducting strip see Fig. 3 A from housing bottom embedding ditch 21() once be fitted in the housing.With mechanical action conducting strip being linked strip 4 along the housing longitudinal direction then comes inflection moving and separate with each conducting strip.Cooperate Fig. 3 A and Fig. 3 B can learn the global shape and the spatiality that is placed in enclosure interior of conducting strip 3, two conducting strip tops are propped up by wall 5 within the face place by housing groove respectively, and below this top wall and with embedding ditch inwall contact position, be the turnover shape respectively, the first turning point M and the second turning point N as shown in FIG., and conduct electricity the following appropriate locations of slice, thin piece plate contact point 6 certainly and extend and establish below reinforcement protuberance 7 to second turning points, make conducting strip can bear bigger resistance and pressure.Conducting strip second turning point N and the appropriate location of not establishing the reinforcement protuberance are provided with several projections 8 for fixing usefulness.

Fig. 4 A and Fig. 4 B be the utility model be used for fixing daughter board with the fixture 9 of subsidy conducting strip chucking power just, end view, it is to be left-right symmetric, comprise base portion 10 and integrally formed and upwardly extending two crank arm 11 from the base portion both sides with base portion, this two cranks arm 11 from base portion 10 parallel extending upward, and gradually separate in that the appropriate location warpage is multiple to the certain distance in opposite directions, lead the usefulness of position for daughter board and form hypotenuses 12 at 2 two tail ends of cranking arm respectively.The parallel portion of respectively cranking arm is provided with a spring secures rail to sleeper 13 under being tilted to; The blocking 14 of in the middle of base portion, also establishing a warpage; Blocking 14 closes on both sides respectively one first teat 15.This two spring secures rail to sleeper 13, blocking 14 and two first teats 15 all protrude in the integral planar of daughter board fixture.Each tool one second teat 16 of limit, base portion two ends, its outstanding direction flushes with the fixture plane.

Fig. 7 obtains the situation that daughter board fixture 9 is installed in enclosure interior for Fig. 1 along straight line a, and Figure 10 (a) part shows that then daughter board fixture 9 is installed in the side schematic view of enclosure interior.Thus two figure as can be known, daughter board fixture 9 is that mat spring secures rail to sleeper 13 prevents that fixture pressurized during daughter board inserts from gliding, and sees through blocking 14 and stop fixtures up to be drawn when daughter board upwards detaches groove; Each teat 15,16 of this shell body internal fixation device is because of being urgent state with the insertion that prevents fixture factor plate or detach moving up and down of causing.

Fig. 5 A and Fig. 5 be used for fixing for the utility model connector and motherboard fixture 17 just, end view, it also is left-right symmetric, comprises base portion 18, the foot 19 of extensions downwards in the middle of the base portion, and gives prominence to and extend downward the warpage branch 20 that flushes with the foot end by foot central authorities top appropriate location.Respectively there is one first teat 21 both sides of closing on of foot in the middle of base portion, and its limit, two ends is each tool one second teat 22 then.The foot aftermost breadth is cumulative, and formation is led an oblique arc 23 in order to passing position, motherboard hole endways.Foot 19 forms the secondary foot 24 that two symmetries are separated because of the design of warpage branch 20, sees Fig. 5 C.

Fig. 8 obtains the situation that motherboard fixture 17 is installed in enclosure interior for Fig. 1 along straight line b, and Figure 10 (b) part then display master blank fixture 17 is installed in the side schematic view of enclosure interior.Thus two figure as can be known, motherboard fixture system utilizes the urgent state that produces between each teat 21,22 and the housing that the motherboard fixture can closely be installed in the housing.And the motherboard fixture passes on the motherboard the corresponding position, hole that is provided with by two secondary foots 24 and warpage branch 20 and is fixed on the motherboard.

Fig. 6 A and Fig. 6 B are a kind of dual-purpose fixtures 25, function with above-mentioned daughter board fixture and motherboard fixture, its structure is the combination of the two haply, comprise base portion 26, from base portion to the upper edge stretch two crank arm 27, one foot 28, warpage branches 29 that constitute by two secondary foots and being located at respectively crank arm with base portion on spring secures rail to sleeper 30 and 2 first teats 31 and 2 second teats 32.

Fig. 9 obtains the situation that dual-purpose fixture is installed in enclosure interior for prolonging straight line c among Fig. 1, and Figure 10 (c) part shows that then dual-purpose fixture is installed in the side schematic view of enclosure interior.

Configuration mode with three kinds of fixtures in Figure 10 present embodiment, be installed in relative direction by two fixtures (being a motherboard fixture and a dual-purpose fixture in the present embodiment) with warpage branch 20,29 and can prevent in the housing that connector from producing transverse shakiness on motherboard, the design of secondary foot helps then to prevent that connector is with respect to vertically rocking that motherboard produces.

The utility model can optionally and individually or mix use daughter board fixture, motherboard fixture and dual-purpose fixture.

In sum, the intensity of utilizing the utility model conducting strip can improve conducting strip via the design of reinforcement protuberance and turnover makes in daughter board unlikely generation distortion or phenomenon of sinking in the plug process; And daughter board vertically rocks the design of consideration that prevents to have the hyperbolic arm in housing groove, as for then being enough to prevent that by two two fixtures and symmetrical pairs with warpage branch connector from producing portraitlandscape with respect to motherboard and rocking between connector and the motherboard.In addition, the utility model also has and leads position and the function of locating easily because of the hypotenuse and the foot design of leading an oblique arc of fixture on cranking arm.

Claims (4)

1, a kind of printed circuit board (PCB) connector, comprise a rectangular housing, its longitudinal direction inside be provided with at least one opening upwards, in order to the groove of ccontaining daughter board, arrange chase and respectively establish one respectively in the vertical both sides of groove, each arranges the mutual conducting strip with long conducting strip pin and short conducting strip pin that is provided with in the chase, the conducting strip pin system of these conducting strips passes from the corresponding embedding ditch that is provided with of housing bottom, daughter board is inserted behind the groove can these conducting strips of mat and produce the logical state of electricity with printed wire on the motherboard, it is characterized in that each conducting strip has:

One top, the mat housing groove props up by the face inwall, and establishes first turning point at this by below the face inwall;

One from the top first turning point is tilted to down the horn shape warpage of extension, for the usefulness of daughter board contact;

One extension is to tilt to extend downward from the horn shape warpage to embed in the ditch and contact to housing bottom with inner walls, enters at it to embed ditch and contact part with inner walls and establish second turning point; And

One long or short conducting strip pin is that extension passes from this extension and by embedding the ditch bottom;

Wherein between the appropriate location below second turning point, extension, establish the reinforcement protuberance from the following appropriate location of conducting strip horn shape warpage, improving the intensity of conducting strip, and establish several in the appropriate location that the extension end is not established the reinforcement protuberance and put on to make between conducting strip and embedding ditch inwall and be the packing state for fixing usefulness.

2, printed circuit board (PCB) connector according to claim 1 is characterized in that, installs one in the enclosure interior appropriate location at least and is symmetrical motherboard fixture, and this motherboard fixture comprises:

One base portion; And

One foot, system is by extending downwards in the middle of the base portion, comprise that one is outstanding and extend downward the warpage branch that flushes with the foot end from foot central authorities tops appropriate location, and two two pairs of separating from the outstanding symmetry that constitutes of foot because of warpage branch are sufficient, each secondary sufficient aftermost breadth is cumulative, and formation is led an oblique arc in order to passing position, motherboard hole endways

Wherein respectively there is one first teat the both sides of closing on of foot on base portion, the limit, two ends of base portion is each tool one second teat then, system of two first teats and warpage branch protrudes in the integral planar of motherboard fixture again, and the projected direction of these two second teats then flushes with motherboard fixture integral planar.

3, printed circuit board (PCB) connector according to claim 1 and 2 is characterized in that, installs one in the enclosure interior appropriate location at least and is symmetrical daughter board fixture, and this daughter board fixture comprises:

One base portion, centre have the blocking of a warpage, close on each tool one first teat of both sides in blocking and respectively establish one second teat in limit, base portion two ends; And

Two crank arm, system extends upward from the base portion both sides are parallel, and gradually separates in that the appropriate location warpage is multiple to the certain distance in opposite directions, respectively forms a hypotenuse is led the position for daughter board usefulness at the tail end of respectively cranking arm, the parallel position of closing on base portion of respectively cranking arm respectively is provided with a spring secures rail to sleeper that is tilted to down

Wherein this two spring secures rail to sleeper, blocking and two first teats are the integral planar that protrudes in the daughter board fixture, and the projected direction of these two second teats then flushes with daughter board fixture plane.

4, printed circuit board (PCB) connector according to claim 1 and 2 is characterized in that, is provided with one in the enclosure interior appropriate location at least and is symmetrical dual-purpose fixture, and for the fixing usefulness of motherboard and daughter board, this dual-purpose fixture comprises:

One base portion;

Two crank arm, system extends upward from the base portion both sides are parallel, and gradually separate in that the appropriate location warpage is multiple to the certain distance in opposite directions, respectively forming a hypotenuse at the tail end of respectively cranking arm and lead the usefulness of position for daughter board, the parallel position of closing on base portion of respectively cranking arm respectively is provided with a spring secures rail to sleeper under being tilted to; And

One foot, system is by extending downwards in the middle of the base portion, comprise that one is outstanding and extend downward the warpage branch that flushes with the foot end from foot central authorities tops appropriate location, and two two pairs of separating from the outstanding symmetry that constitutes of foot because of warpage branch are sufficient, each secondary sufficient aftermost breadth is cumulative, and formation is led an oblique arc in order to passing position, motherboard hole endways

Wherein respectively there is one first teat the both sides of closing on of foot on base portion, the limit, two ends of base portion is each tool one second teat then, this spring secures rail to sleeper, first teat and system of warpage branch protrude in the integral planar of dual-purpose fixture again, and the projected direction of these two second teats then flushes with dual-purpose fixture integral planar.

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