CN2831472Y

CN2831472Y - Electrical card connector

Info

Publication number: CN2831472Y
Application number: CNU200520074503XU
Authority: CN
Inventors: 许长新
Original assignee: Hongteng Precision Technology Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongteng Precision Technology Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2005-08-11
Filing date: 2005-08-11
Publication date: 2006-10-25
Anticipated expiration: 2015-08-11

Abstract

A kind of electronic card coupler; in order to electrically connect electronic cards; comprise the insulating body with plant space, some the first terminal and shielding casings that electrically contacts with electronic cards; described some the first terminals are contained in this insulating body; described shielding casing is coated on the periphery of insulating body; the side that it has an end face and is extended to form downwards by described end face; described end face is provided with the shell fragment of a warpage; described shell fragment can connect with the counter structure of the equipment that uses this connector, and the realization electrostatic conducting is avoided damaging with the electronic component in the protection connector.

Description

Electronic card coupler

[technical field]

The utility model relates to a kind of electronic card coupler, relates in particular to a kind of electronic card coupler that electrostatic protection is provided.

[background technology]

Along with mobile product, printer, PC, the developing rapidly of DVD, set-top box products such as (STB), the consumer is just requiring more and more advanced performance.It is complicated that semiconductor subassembly tends to miniaturization, high density and function day by day, particularly as fashional consumption electronics and portable product etc. the application of mainboard area requirements strictness is easy to be subjected to the influence of Electrostatic Discharge.ESD can bring fatal harm to electronic product; it has not only reduced reliability of products; increased maintenance cost; do not meet the industrial standard EN61000-4-2 of European Economic Community's regulation; product just can not be in European market; some have adopted the deep submicron process and the complicated semiconductor functional circuits of fine linewidth wiring very, and are responsive more to the influence of circuit transient process, so electrostatic discharge (ESD) protection is for high density, miniaturization with to have an electronic equipment of sophisticated functions significant.

ESD can be divided into three types basically, and the one, the ESD that various machines cause, the 2nd, furniture moves or equipment moves the ESD that causes, and the 3rd, human body contact or equipment move the ESD that causes.These three kinds of ESD are extremely important for the production of the production of semiconductor device and electronic product.Electronic product is in the easiest damage that is subjected to the third ESD of use, and portable type electronic product is subjected to the damage of the ESD of human body contact generation especially easily.ESD can damage the interface device that is attached thereto in the ordinary course of things, and another kind of situation is that it(?) not possible can damage immediately by the device after ESD impacts, but decreased performance causes product to break down too early.

ESD is as an important content of electromagnetic compatibility (EMC) research, also is our problem that can't avoid in the mobile communication terminal product.Carrying out mobile communication terminal EMC when design, necessarily can not ignore protection to ESD, if antistatic release (ESD) design is bad, then may cause mobile communication terminal in use take place locked, reset, loss of data and phenomenon such as unreliable.

When integrated circuit (IC) when standing ESD, the resistance of discharge loop is all very little usually, can't limit discharging current.When for example being inserted into the cable of static electrification on the circuit interface, the resistance of discharge loop is almost nil, causes the peak current that sparks up to tens of amperes, flows into corresponding IC pin.Instantaneous large-current can major injury IC, the heat of local pyrexia even can melt the silicon chip tube core.ESD comprises also that to the damage of IC the interior metal connection is blown, and passivation layer is damaged, and transistor unit is burnt out.ESD also can cause the deadlock (LATCHUP) of IC.The similar silicon controlled construction unit of this effect and cmos device inside is activated relevant.High voltage can activate these structures, forms big electric current channel, generally is from VCC to ground.The deadlock electric current of series interface part can be up to 1A.The deadlock electric current can keep always, is de-energized up to device.But till that time, IC has burnt because of overheated usually already.Along with the complexity of each adhesive integrated circuit and the raising of precision make them also responsive more to ESD, general loop design in the past is also no longer suitable.

So, in mobile communication product, press for and address the above problem, guarantee the stability of product function and the fail safe of using.

[utility model content]

The purpose of this utility model is to provide a kind of electronic card coupler with effective electrostatic preventing structure.

The purpose of this utility model is achieved through the following technical solutions: a kind of electronic card coupler, it mainly is used in the mobile communication terminal device, described electronic card coupler is in order to electrically connect electronic cards, it comprises the insulating body with plant space, some the first terminal and shielding casings that electrically contact with electronic cards, described some the first terminals are contained in this insulating body, described shielding casing is coated on the periphery of insulating body, the side that it has an end face and is extended to form downwards by described end face, described end face is provided with the make progress shell fragment of warpage of a relative end face, and described shell fragment can connect with the housing of mobile communication terminal device.

Compared with prior art, the utlity model has following beneficial effect: by the shell fragment that connects with the counter structure that uses this connector apparatus is set on the shielding casing of the coated insulation body of electronic card coupler, make that the electrostatic energy that produces is effectively discharged in the connector use, thereby guarantee the stability of connector function and the fail safe of using.

[description of drawings]

Fig. 1 is the three-dimensional combination figure that the utility model card connector has just inserted the electronic cards state.

Fig. 2 is the part combination schematic diagram of the utility model electronic card coupler.

Fig. 3 is another part combination schematic diagram of the utility model electronic card coupler.

Fig. 4 is the three-dimensional exploded view that the utility model card connector does not comprise the shielding casing structure.

Fig. 5 is the trip mechanism part broken away view of the utility model electronic card coupler.

Fig. 6 is the utility model card connector inserts another angle of back in electronic cards a view.

Fig. 7 is the utility model card connector withdraws from another angle of back in electronic cards a view.

[embodiment]

See also Fig. 1 and shown in Figure 4, the utility model electronic card coupler, in order to electrically connect electronic cards 6, the shielding casing 5 that it comprises insulating body 1, is assembled in some the first terminals 2, second terminal 3, the trip mechanism 4 in the insulating body 1 and is coated on insulating body 1 outside.

See also Fig. 2 and shown in Figure 4, described insulating body 1 comprises a pedestal 11 and left and right two

side arms

12,13, this two

side arm

12,13 is integrated to be connected in pedestal 11 2 sides, and takes this to constitute a plant space 10, and this plant space subcard 6 of can powering is inserted in wherein.Divide two row's symmetries to be arranged at intervals with plurality of terminals conduit 111 on this pedestal 11, can be used for ccontaining some the first terminals 2, this left side, right arm 12, be arranged at intervals with button on 13 outsides and hold the hangnail 121 of shielding casing 5, pedestal 11 is being provided with an elongated slot 14 that is used to hold the slide block 41 of trip mechanism 4 near above-mentioned right arm 13 places, described groove 14 extends and adjacent with receiving space 10 and communicate along sidewall 13, the rough medium position place of described groove 14 is provided with a terminal containing slot 141, some second terminals 3 are contained in the described terminal containing slot 141, simultaneously groove 14 have link to each other with sidewall 13 first,

second end wall

15,16, described first end wall 15 is provided with the guide member 42 of through hole 151 to accommodate trip mechanism 4 in the side towards groove 14, and described second end wall 16 is protruding out an elastomeric fixing bar 161 in order to the location trip mechanism on the direction of groove 14.

Please continue to consult shown in Figure 4, the first terminal 2 is formed by dividing two rows that the plurality of conductive terminals in the corresponding terminal conduit 111 are set and are contained on the insulating body pedestal, wherein arbitrary conducting terminal includes and is tilted to bending and extends the contact site 21 in order to contact with electronic cards 6 hard contacts (not shown) form and reach the weld part 23 that is welded in circuit board (not shown) that stretches out backward, described contact site 21 is connected as a single entity by holding parts 22 with weld part 23, described holding parts 22 is contained in the accepting groove (not label) of terminal conduit 111 to locate described the first terminal, the homonymy that the weld part 23 of the plurality of conductive terminals of wherein said the first terminal 2 can be arranged in insulating body pedestal 11 also can be arranged in the relative both sides of pedestal, and only being arranged in pedestal 11 homonymies with weld part in the utility model is that example describes.

Second terminal 3 that plays on-off action is by electrically conducting or some switch terminals of disconnect connector circuit are formed.Some switching terminal structure of the correspondence of described second terminal 3 are identical and be contained in side by side in the accepting groove 141 on the groove 14, described switch terminal all has abutting part 31 and conducting portion 33, described abutting part 31 is connected as a single entity by connecting portion 32 with conducting portion 33, and the conducting portion 33 of described switch terminal can electrically conduct by the circuit board corresponding with connector.

See also Fig. 3, Fig. 4 and shown in Figure 5, the elastomer that described trip mechanism 4 comprises slide block 41, guide member 42, connect with slide block 41 and be assembled in sheet metal 44 on the described slide block 41.Described slide block 41 can be free to slide (the lengthwise structure that slide block is a general square shape in the present embodiment) along blocking on the direction of inserting or withdrawing from the groove 14 of insulating body 1, this slide block 41 has upper surface (not label) and lower surface 410, described upper surface is offered the guide channel 411 and the slotted eye 412 that roughly are heart that is interconnected to slide block inside, be recessed to form depressed part 415 and offer and penetrate the shrinkage pool 413,414 of slide block from described lower surface 410, protruded out a protuberance 416 to described depressed part 415 from described lower surface 410 from this lower surface.

The two ends that are articulated in the guide member 42 of slide block are bent to form first bending end 421 and second bending end 422 downwards, described first bending end 421 is fixed in the through hole 151 on first end wall 15 of insulating body groove 14 realizes the location, described second bending end 422 slides in heart-shaped guide channel 411 in the slip of card insertion and exit axis with slide block 41, by locking and the release effect of the slippage realization of guide member 42 in heart-shaped groove to described trip mechanism.

The elastomer of trip mechanism is a spring in the present embodiment, one end of described spring 43 is fixing by the fixing bar on second end wall 16 of groove 14 161, its other end then is housed in the slotted eye of offering slide block 41 rear ends 412, and described spring 43 can slide and elastic compression and elastic recoil it with insertion and the exit axis of slide block 41 along electronic cards by the qualification of fixing bar 161 and slotted eye 412.

Please continue to consult Fig. 4 and shown in Figure 5, the sheet metal 44 that is assembled on the slide block 41 of trip mechanism 4 comprises the body 441 that is contained in trip mechanism slide block 41 lower surface depressed parts 415, extend to form latch part 442 respectively from body 441 two ends, 443 vertical wall (not label), form a breach 440 that matches with slide block protuberance 416 at body 441 1 ends, also be provided with a pushing portion 445 and a press section 446 simultaneously on the vertical wall near card receiving space 10, the thickness of this body 441 equals or is slightly larger than the degree of depth of depressed part 415, after sheet metal 44 is assembled in slide block 41, latch part 442,443 embed the shrinkage pool 413 on the slide block, realize in 414 that sheet metal cooperates with the location of slide block, the power that pushes when described pushing portion 445 can bear card and inserts and when moving back card card is applied motive force, described press section 446 can apply a pressing force to the electronic cards 6 of insertion to guarantee that excellent electrical property contacts between electronic cards 6 and the first terminal.

See also Fig. 2 and shown in Figure 4, described shielding casing 5 comprises end face 51, is bent downwards respectively by end face 51 both sides and extend the two

sides

52,53 that form and extend to form the rear wall 54 that covers insulating body 1 rear end downwards by end face 51 rear ends.Wherein said end face 51 is provided with one and holds the make progress shell fragment 510 of warpage of sheet 511 and a relative end face in order to the button that compresses trip mechanism 4 guide members 42, described side 52 is provided with some breach 522 in order to match with some hangnails 121 on the insulating body 1 left side arm 12, the bending extension of 52 bottoms, side is provided with some welding foots 521 that are welded in circuit board (not shown), side 53 also has some breach (not shown) that match with hangnail (not shown) on the sidewall 13 with described side 52 structural similarities, and some welding foots 531 in order to be welded in circuit board, after the utility model electronic card coupler is assembled in mobile communication terminal device (not shown), the housing (not shown) of described shell fragment 510 and mobile communication equipment connects and forms static release path, the housing of described mobile communication equipment can be that metal shell also can be to use polyester film/copper or polyester film/aluminium pressing plate in plastics, perhaps use the plastic casing of conductive coating or conductive filler, described shielding casing 5 makes it be assembled in insulating body 1 back by strong fix by the breach of described side with the cooperation of the corresponding hangnail of insulating body sidewall.

During use, electronic cards 6 is inserted in the electronic card coupler, see also shown in Figure 1, this moment, trip mechanism 4 was in the initial condition that electronic cards is inserted, when electronic cards 6 further pushes the pushing portion 445 of sheet metal 44 backward, because the slippage of slide block 41 makes spring 43 be subjected to force compresses, slide block 41 along groove 14 in card receiving space 10 rear end slippages, second bending end 422 of guide member 42 is motion in guide channel 411 with moving of slide block 41, when electronic cards pushes away motionless and after slide block 41 stops to move, second bending end 422 holds and holds position (not label) to guide channel 411, primary importance (indicating) when this moment, trip mechanism 4 was in the electronic cards insertion together with sheet metal 44, see also shown in Figure 6, the contact site 21 of the first terminal 2 of the hard contact (not shown) of electronic cards 6 contact at this moment, the abutting part 31 of some switch terminals of second terminal 3 is connected on the body 441 of sheet metal 44 simultaneously with the circuit turn-on between electronic cards and the circuit board, the press section 446 of sheet metal 44 is by being pressed in electrical contact of guaranteeing on the electronic cards of having inserted that electronic cards and the first terminal are stable, the inclined-plane 123 that the sidewall rear end forms match with the oblique angle (not shown) on the electronic cards with prevent electronic cards misplug into.

When needing to take out electronic cards 6, only need once more along card insertion direction pushing tow electronic cards 6, second bending end 422 of guide member 42 just break away from slide block 41 guide channels on hold the buckle of position, effect sliding block 41 in spring 54 elastic restoring forces moves along the direction opposite with the electronic cards direction of insertion, simultaneously, the front end drive electronic cards that pushing portion 445 pushes electronic cards together moves with slide block, see also shown in Figure 7, when trip mechanism 4 is in the second place that electronic cards withdraws from, the hard contact of electronic cards 6 (not shown) is separated with the contact site 21 of the first terminal 2, simultaneously the abutting part 31 of some switch terminals of second terminal 3 does not connect with the body 441 of sheet metal 44 simultaneously, the abutting part of the described switch terminal of some of them is resisted against on the protuberance of slide block lower surface (identical when the initial conditions of inserting with electronic cards), really, some switch terminals are when the second place that electronic cards withdraws from, also can not contact simultaneously with described sheet metal, electric connection between described some switch terminals is blocked, thereby the circuit between electronic cards and the circuit board is disconnected.

The utility model electronic card coupler, by on the shielding casing of coated insulation body, shell fragment being set, make the end face of the relative shielding casing of shell fragment make progress warpage and connect with the housing of the mobile communication terminal device that uses described electronic card coupler, thereby form the path that a power supply subcard connector static discharges by shell fragment and housing, guarantee the stability of electronic card coupler function and the fail safe of using.

Claims

1. electronic card coupler, it mainly is used in the mobile communication terminal device, described electronic card coupler is in order to electrically connect electronic cards, it comprises the insulating body that is provided with the plurality of terminals accepting groove, some the first terminal and shielding casings that electrically contact with electronic cards, described some the first terminals are contained in the terminal containing slot of insulating body correspondence, described shielding casing with end face is assembled on the described insulating body, it is characterized in that: described shielding casing end face is provided with the make progress shell fragment of warpage of a relative end face, and described shell fragment can connect with the housing of mobile communication terminal device.

2. electronic card coupler as claimed in claim 1 is characterized in that: it further comprises a trip mechanism that can slide on electronic cards insertion and exit axis.

3. electronic card coupler as claimed in claim 2, it is characterized in that: described trip mechanism comprises slide block, guide member and elastomer, described slide block can be free to slide along electronic cards insertion and exit axis, which is provided with guide channel and shrinkage pool, described guide member can the guide channel on slide block in slippage, a described elastomeric end is contained in the shrinkage pool that is provided with on the slide block.

4. electronic card coupler as claimed in claim 3, it is characterized in that: described insulating body comprises that one is provided with the pedestal of plurality of terminals accepting groove and one-body molded in described pedestal side walls, and described pedestal is being provided with a groove of accommodating trip mechanism near the position of a sidewall wherein.

5. electronic card coupler as claimed in claim 4, it is characterized in that: described groove is provided with the plurality of terminals accepting groove, described groove has first end wall and second end wall that links to each other with corresponding sidewall simultaneously, described first end wall is provided with the through hole of location guide member, and described second end wall is provided with the fixedly fixed lever of the elastomer other end.

6. electronic card coupler as claimed in claim 3 is characterized in that: described trip mechanism comprises that further one is assembled in the hardware on the described slide block, described hardware can be with the slippage of slide block slippage on the insertion of electronic cards and exit axis.

7. electronic card coupler as claimed in claim 6 is characterized in that: it has further comprised some second terminals of on-off action, described second terminal accommodating accommodating in the conduit in the insulating body correspondence.

8. electronic card coupler as claimed in claim 7, it is characterized in that: when described trip mechanism is in the primary importance of electronic cards insertion, described hardware contacts simultaneously with some second terminals, during the second place that the electronic cards that is in trip mechanism withdraws from, described hardware contacts with part terminal in some second terminals or does not contact with second terminal of all its on-off actions.

9. electronic card coupler as claimed in claim 1, it is characterized in that: described some the first terminals divide two rows to be arranged on the insulating body, the homonymy that the weld part that it has the contact site that electrically contacts with electronic cards and is welded in circuit board, described weld part can be arranged in insulating body also can be arranged in the relative both sides of insulating body.

10. electronic card coupler as claimed in claim 6 is characterized in that: described hardware is provided with the pushing portion that pushes electronic cards when moving back card.