CN201075484Y

CN201075484Y - Memory card connector

Info

Publication number: CN201075484Y
Application number: CNU2007201571890U
Authority: CN
Inventors: 王国华
Original assignee: 袁家瑞
Priority date: 2007-08-06
Filing date: 2007-08-06
Publication date: 2008-06-18
Anticipated expiration: 2017-08-06

Abstract

A memory card connector comprises an insulation body, a plurality of conductive terminals, a pair of elastic switch terminals, a card-withdrawing mechanism and at least one shielding shell. The pair of switch terminals comprises a first switch terminal and a second switch terminal, and each switch terminal is provided with an elastic part; two elastic parts of the pair of switch terminals always keep a certain distance. When the memory card is completely inserted in the card space on the insulation body, one metal contact piece of the card-withdrawing mechanism is inserted between the elastic parts of the pair of switch terminals with movement, leading to clamping contact and achieving the detection for the insertion of the memory card; the shielding shell is provided with a blocking elastic piece used for withstanding a half lock elastic piece of the card-withdrawing mechanism, so as to prevent the memory card from flying out of the connector in the card-withdrawing process; the shielding shell is also provided with an withstanding piece used for withstanding a projecting part on the periphery of the half lock elastic piece, thereby preventing memory card from abnormal breaking away.

Description

Memory card connector

Technical field

The present invention relates to a kind of memory card connector, particularly have the function whether the detecting memory card inserts fully, and have the memory card connector that this memory card is remained in half latch mechanism of half lock state about a kind of.

Background technology

In recent years, for the memory capacity that increases electronic installations such as mobile phone, PDA(Personal Digital Assistant) and digital camera or for expanding its function, generally be equipped with all types of memory cards of various memory card connectors in these electronic installations in order to ccontaining plug and play.Except making between memory card and the electronic installation the transmitted in both directions numerical data, also the numerical data that electronic installation write down can be stored in this memory card.

United States Patent (USP) the 6th, 547, disclosed a kind of existing memory card connector for No. 601, comprised an insulating body, be arranged at a plurality of conducting terminals on the insulating body, the shielding casing that is coated on the insulating body periphery and a pair of switch terminal of being located at insulating body one side.This shielding casing is provided with sidewall and is positioned at the holding parts of this sidewall below in order to memory card connector and electronic installation are fixed.When the memory card of correspondence inserts in this memory card connector, by detecting this switch terminal is passed through to allow signal, memory card and conducting terminal are electrically conducted and carry out transfer of data.Wherein, this comprises a flexible terminal and a fixed terminal to switch terminal, the conductive junction point that each switch terminal includes pin portion and contacts in order to cooperation.Wherein, this fixed terminal is integrally formed by a sidewall wall edge of shielding casing, and the holding parts of described sidewall serves as the pin portion of this fixed terminal.When memory card inserted connector inside, memory card one side and flexible terminal connected, and side shifting contacts with fixed terminal because of being subjected to compressing outward to make this flexible terminal, thereby realized the detecting function that memory card inserts.

Yet, there is following defective in above-mentioned existing memory card connector: 1) utilize the memory card (as card case) of insertion itself to go to press the flexible terminal that touches switch terminal to do electrically to contact with fixed terminal, after using repeatedly, memory card itself is easy to wear, contacts with the stable of fixed terminal thereby influence flexible terminal; 2) bear the direct pressure of inserting memory card alone by flexible terminal and touch, can produce many resistances, as misoperation, the easier flexible terminal that makes is out of shape, thereby also can influence its stability; 3) memory card this in manufacture process, all have certain just/negative common difference.When memory card had negative common difference, described flexible terminal can't be subjected to enough positive forces easily and can not reliably contact with fixed terminal, thereby influenced the detecting result that memory card inserts; Otherwise when memory card had plus tolerance, this flexible terminal was easily because of permanent deformation takes place in excessive deformation, thereby can't have higher reliability and durability.For the more and more littler development trend of present electronic installation, these defectives of above-mentioned switch terminal also can be more and more obvious.As, when the switch terminal of said structure is used for the less memory card connector of volume, during as Trans-flash (TF) card connector, because the space of this type memory card connector is limited, the force-bearing situation of the flexible terminal of said structure when memory card inserts is harsh, be easy to generate distortion, thereby the contact that influences memory card connector electrically reaches useful life.Therefore, be necessary the detecting mode and the detecting structure of existing memory card connector are improved, to overcome above-mentioned defective.

In addition, memory card connector adopts a kind of pushing away (push-push) formula trip mechanism to make things convenient for the plug of memory card mostly at present.This type of trip mechanism comprises mostly: be installed on insulating body side and a sliding seat, a back-moving spring, a guide bar that can free forward-reverse, and be installed in half the lock shell fragment on this sliding seat, this end of partly locking shell fragment is formed with one and cooperates protuberance.When inserting memory card, the recess that is located at the memory card side cooperatively interacts with the above-mentioned protuberance that cooperates of partly locking shell fragment, and memory card can be remained in half lock state.

When promoting above-mentioned memory card under this half lock state, sliding seat can overcome the elastic force of back-moving spring and move to progressive position.At this moment, guide bar moves along the track that advances that is located at the cam path on the sliding seat.So this guide bar is blocked by nose of cam, sliding seat is locked in progressive position, thereby with memory card location and be fixed in the state that can read and write.

When need take out above-mentioned memory card, as long as push this memory card once more.So above-mentioned sliding seat advances once more, above-mentioned guide bar moves also locked from nose of cam to the track end of advancing of cam path.Subsequently, as removing the pushing of memory card, then sliding seat is pushed back side in front because of the elastic force of back-moving spring, and above-mentioned guide bar moves to the end of returning track along the track that returns of cam path, and sliding seat also moves to going-back position.At this moment, the cooperation protuberance of partly locking shell fragment makes it be unlikely to fly out on memory card half lock from laterally cooperating with the recess of memory card.Then, after sliding seat arrived going-back position, when memory card was pulled out, the above-mentioned cooperation protuberance of partly locking shell fragment broke away from from the recess of memory card, thus can be from connector in face of transfer to this memory card.

As mentioned above, above-mentioned memory card connector utilizes structures such as so-called heart-shaped cam groove mechanism and back-moving spring, with push/the release mode carries out memory card by stages to the insertion of desired location and extracting from this desired location.

Yet, be not the state that ends of card fully by match with the recess of memory card half lock state that memory card is kept of the cooperation protuberance of partly locking shell fragment, but a lax hold mode still can make memory card be pulled out at an easy rate and insert.In above-mentioned pushing away (push-push) the formula trip mechanism, power source is a back-moving spring, when the abrupt release of spring strength, will produce big inertia, promptly can produce impulsive force, therefore when withdrawing from memory card, under the stronger situation of the elastic force of back-moving spring, then have the problem that memory card flies out from connector rapidly.In addition, when memory card moves, partly lock shell fragment be subjected to coming from memory card the auxiliary section reaction force and to horizontal flexural deformation, owing to do not prevent this diastrophic any mechanism, so can not in the action way, carry out the adjustment of locking shell fragment pressure double.Set by force as the pressure that will partly lock shell fragment, can prevent effectively that then memory card from flying out from connector.But in this case, strong excessively as the pressing force of partly locking shell fragment, then can cause the insertion of memory card and extract and can not carry out smoothly.Certainly, fly out elastic force that also can more weak ground reset spring in order to prevent memory card.If but the elastic force of above-mentioned back-moving spring excessively a little less than, then have again can not guarantee with memory card from connector withdraw from required reset force (stroke) may.Also have some to prevent the design that memory card flies away from the prior art from connector, but these designs can not absorb the tolerance of memory card usually, promptly when memory card had certain plus-minus tolerance, the design that these anti-stickings fly out can be lost efficacy.

In addition, above-mentioned existing memory card connector is not provided with usually and prevents the escapement that memory card gets loose from connector.When memory card during, when promptly being in the operating state of locking, guarantee that by the distortion strength and the frictional force between memory card and the connector of partly locking shell fragment memory card can not come off unusually normal the use.But can find that in actual use memory card tends to owing to artificially extract by force, or the vibrations that in moving process, produced of electronic installation, unusual external force and loose or dislocation, and cause the memory card can't operate as normal.Also there are some to prevent the design that memory card is deviate from the prior art from connector,, realize the parts that these designs normally utilize metal parts and plastics to make the function of anticreep card but interacting, but because the undercapacity of plastic components own, so the design that these anti-stickings are deviate from was easily lost efficacy.

Therefore, in order to ensure memory card in the electronic installation use safe and reliable, be necessary to design a kind of memory card connector, this connector must possess after inserting fully when memory card, can prevent the vibrations produced because of moving of electronic installation effectively and the disengaging of former thereby the memory card that causes such as drop unusually, and this connector also should be easy to operate, and it is simple to have a mechanism, manufactures to be easy to advantage.

Summary of the invention

This novel main purpose is to provide a kind of memory card connector with switch terminal, and the detecting function that described switch terminal can provide stable memory card to insert is longer to guarantee preferable electrical contact and useful life.

This another novel purpose is to provide a kind of memory card connector with switch terminal, and it has the function that prevents to fly card.

This novel purpose again is to provide a kind of memory card connector with switch terminal, and it has the function that the memory card that prevents to insert gets loose from connector.

For achieving the above object, this is novel to provide a kind of memory card connector, and comprising: an insulating body has the insertion that a plug-in card space is used for a ccontaining corresponding memory card at least; A plurality of conducting terminals are contained in this insulating body, in order to electrically to contact with the corresponding contact of memory card; At least one first switch terminal and a second switch terminal, be contained in this insulating body, each switch terminal has a holding parts and is used for extending insulating body with insulating body fixing, a pin portion by holding parts one end, and an elastic portion extends inward into insulating body by holding parts one end; And a trip mechanism, can on this insulating body, move.The two elastic portion of this first and second switch terminal remains and is spaced a distance, and this trip mechanism has a Metal Contact part at least; When memory card inserts the plug-in card space of insulating body fully, the Metal Contact part of trip mechanism moves thereupon, between the two elastic portion that inserts this switch terminal, and by this two elastic portion resilient clamp with contact, thereby electrically conduct this first switch terminal and second switch terminal, realize the detecting that memory card is inserted.

Preferably, above-mentioned this shifts to install two conductive junction points of the elastic switch terminal plug direction along memory card, and the contact that makes trip mechanism can successively dock with two conductive junction points of this two switch terminal and realize more stable detecting function.

Compared with prior art, according to this novel memory card connector is the nonabradable Metal Contact part that utilizes on the trip mechanism, and the clamping and closely and stably electrically contact this contact effectively of this elastic energy that two elastic portion of switch terminal is provided, therefore can guarantee that detecting function is errorless.Simultaneously, switch terminal is born jointly the resistance of this insertion memory card by this, the defective of permanent deformation only takes place in the switch terminal that also can overcome existing connector easily with a unitary elasticity terminal, thereby improves the reliability and the durability of switch terminal and memory card connector.

In addition, for achieving the above object, the trip mechanism of the memory card connector that this is novel further comprises: a sliding seat can on the insulating body along memory card plug direction slide, a flexible member provides reseting elasticity and half lock shell fragment to be installed on this sliding seat and to have one along the memory card exit axis to this sliding seat to cooperate protuberance.This cooperation protuberance of partly locking shell fragment stretches in the plug-in card space of insulating body, and matches with the set recess in memory card one side, is in half lock state to guarantee this memory card.This shielding casing is provided with one and stops shell fragment with to should partly locking shell fragment, and this stops that shell fragment has from a base portion of the downward projection of shielding casing main body, and an elastic portion of extending from this base portion along the memory card exit axis.When desiring to withdraw from memory card, this elastic portion that stops shell fragment can partly be locked shell fragment half-and-half to lock the shell fragment application of force by butt, thereby reduce even offset the impulsive force of reseting elastic element, can not only suppress the flexural deformation that this partly locks shell fragment, also increase this and partly locked the cooperation protuberance of shell fragment and the coordinate force between the memory card recess.And, there is dimensional tolerance in this design tolerable memory card that stops shell fragment, promptly when the size of memory card comprises plus-minus tolerance, this stop shell fragment with partly lock shell fragment cooperate between the protuberance can along away from or compress mutually to allow these tolerances towards the direction of memory card.Therefore, when utilizing trip mechanism to withdraw from memory card, can effectively prevent the problem that memory card flies away from according to this novel memory card connector.

Moreover, for reaching above-mentioned purpose, further be provided with a protuberance, and this shielding casing is provided with a contact part with to should partly locking the protuberance of shell fragment according to the shell fragment of partly locking of the trip mechanism of this novel memory card connector.When memory card inserts fully and be in the operating state of locking, the contact part of the downward projection of this shielding casing can partly be locked the upwardly extending protuberance of shell fragment with this and be compressed mutually, thereby change the application of force arm of force that this partly locks shell fragment, thereby corresponding increase is partly locked the fixing strength of shell fragment to stop the recess of its cooperation protuberance disengaging memory card.Like this, can guarantee the memory card that inserts in normal use or be given a shock, when dropping unusually, memory card can accident not come off, and guarantees the safe and reliable use of memory card, and can prevent that to a certain extent memory card from artificially being extracted by force.Simultaneously, cooperating between the contact part of shielding casing and the protuberance of partly locking shell fragment is metal and the cooperating of metal, and therefore has enough intensity, is difficult for losing efficacy.Therefore, although when memory card is in running order, still can effectively prevent because the phenomenon that causes the unexpected disengaging of memory card is pulled out in vibrations, unusual or external force by force according to this novel memory card connector.

The present invention is further illustrated below in conjunction with accompanying drawing and embodiment.

Description of drawings

Fig. 1 is the three-dimensional exploded view of this novel memory card connector.

Fig. 2 is the three-dimensional combination figure of Fig. 1.

Fig. 3 is the three-dimensional exploded view of this novel another angle of memory card connector.

Fig. 4 is the three-dimensional combination figure of Fig. 3.

Fig. 5 is the insulating body of this novel memory card connector and the three-dimensional combination figure of the first terminal, second terminal and trip mechanism.

Fig. 6 is the stereogram of second shielding casing of this novel memory card connector.

Fig. 7 is a schematic diagram of this novel memory card connector, shows when the TF card is in half lock state the position relation (be clear demonstration, insulating body has part to excise) between the contact on switch terminal pair and the trip mechanism.

Fig. 8 is a schematic diagram of this novel memory card connector, shows when the TF card is in running order the mated condition (be clear demonstration, insulating body has part to excise) between the contact on switch terminal pair and the trip mechanism.

Fig. 9 is a schematic diagram of this novel memory card connector, is presented at when withdrawing from the TF card this novel structure that prevents that card from flying away from.

Figure 10 is a schematic diagram of this novel memory card connector, shows when the TF card is in running order this novel unexpected structure that breaks away from of card that prevents.

Embodiment

Relevant detailed description of the present invention and technology contents, existing as follows with regard to accompanying drawings:

Please refer to Fig. 1, Fig. 1 is an a kind of two-in-one memory card connector according to this novel preferred embodiment, can be arranged in all kinds of electronic devices, is inserted in to form in it for a SIM card 8 and a TF or Micro SD card 9 to electrically connect with the store digital data.It should be noted that though this novel two-in-one memory card connector with a SIM card and TF or Micro SD card is that example is illustrated, this novel claim is not to be defined in this, the connector of other form memory card is also applicable.

As Fig. 1 and shown in Figure 3, this memory card connector comprises an insulating body 1, a plurality of the first terminal 2, a plurality of second terminal 3, a trip mechanism 4, one first shielding casing 5, one second shielding casing 6 and a pair of switch terminal 7 with elasticity and shape symmetry.Wherein, this insulating body 1 is made with plastic material, forms three continuous surrounding sidewalls respectively in the top and the bottom of this insulating body 1, is the first plug-in card space 11 and the second plug-in card space 12 stacked on top setting each other of recess with formation.

On the different sides of the top of this insulating body 1 and bottom, outwards form one first socket 13 and one second socket 14 respectively, be plugged in the first plug-in card space 11 and the second plug-in card space 12 its plant state such as Fig. 2 and shown in Figure 4 respectively from the outside via this first socket 13 and second socket 14 for SIM card 8 and TF card 9.The sidewall outer rim of this insulating body 1 is provided with a plurality of first snapping pieces 15 and a plurality of second snapping piece 16, fixes first shielding casing 5 and second shielding casing 6 (as shown in Figure 2) in order to snapping respectively.Offer a plurality of perforates 17 of being row on the top of this insulating body 1 with corresponding these the first terminals 2.

These the first terminals 2 are made with the metal material with conductivity, be divided into two kinds of different lengths, and each the first terminal 2 respectively has one first fixed part 21, these first fixed part, 21 two ends are extended respectively and have been bent to form one first contact site 22 and one first pin portion 23, and these the first terminals 2 are embedded on this insulating body 1 with first fixed part 21.First contact site 22 of these the first terminals 2 stretches in this first plug-in card space 11 by perforate 17, be plugged on this first plug-in card space 11 in SIM card 8 on electrical contact 81 (as shown in Figure 2) contact and realizes electric connection.The first pin portion 23 of these the first terminals 2 then passes outside this insulating body 1 side, to be welded on the circuit board as shown in Figure 4.

These second terminals 3 are made with the metal material with conductivity, and each second terminal 3 respectively has one second fixed part 31 to be embedded on this insulating body 1.One second contact site 32 and the one second pin portion 33 of being bent to form extended at these second fixed part, 31 two ends respectively.As shown in Figure 5, second contact site 32 of second terminal 3 is used to stretch in this second plug-in card space 12, be plugged on this second plug-in card space 12 in TF card 9 on electrical contact 91 (as shown in Figure 1) contact and realizes electric connection.33 in the second pin portion of these second terminals 3 passes outside this insulating body 1 side, to be welded on the circuit board.

As Fig. 1 and shown in Figure 3, this also makes with the metal material with conductivity the switch terminal 7 with elasticity and shape symmetry, comprises first switch terminal and second switch terminal.Each switch terminal 7 respectively has a fixed part 71, and stretching out respectively from these fixed part 71 two ends is bent to form an elastic portion 72 and a pin portion 73.As Fig. 1 and shown in Figure 5, the fixed part 71 of these switch terminals 7 is used to be embedded in this insulating body 1, and the pin portion 73 of these switch terminals 7 passes outside this insulating body 1 side, and is welded on the circuit board simultaneously with the pin portion 33 of second terminal 3.Remain between this elastic portion 72 and be spaced a distance, and stretch in the set opening 18 of insulating body 1 switch terminal 7.Each elastic portion 72 has the free end 720 of a curved structure, which is provided with a conductive junction point 721.Preferably, two conductive junction points 721 of this two elastic portion 72 shift to install (with reference to figure 7 and Fig. 8) along the plug direction AB of TF card 9.

This trip mechanism 4 is installed on a side edge of this insulating body 1, is used for the plug operation of auxiliary TF card 9.As Fig. 1 and shown in Figure 3, this trip mechanism 4 comprises a sliding seat 41, a flexible member 42, a guide bar 43, half lock shell fragment 44 and a contact 45.This sliding seat 41 is slidably disposed on the side of this insulating body 1 along the plug direction AB of TF card 9, and these sliding seat 41 outer rims are provided with one can and move back the cam path 410 (please refer to Fig. 3) of card in order to the control plug-in card.This flexible member 42 is a compression spring, and the one end contacts at this sliding seat 41, and the other end then contacts in this insulating body 1.Insert connector with after compressing this flexible member 42 at memory card 9, in case move back card, this flexible member 42 can provide reseting elasticity to sliding seat 41 along the card direction B that moves back of TF card 9.This guide bar 43 is one to be the metallic rod body of " ㄈ " type, and the one stiff end is fixed in this insulating body 1, and another movable end can move in cam path 410 in two stages to realize plug-in card/the move back operation of card respectively.

This is partly locked shell fragment 44 and has a U-shaped fixed part 440 being contained on the sliding seat 41, and one cooperate protuberance 441, stretches in the second plug-in card space 12 of insulating body 1 with the set recess 90 in TF card 9 one sides and matches (as shown in Figure 9).This lateral margin of partly locking the fixed part 440 of shell fragment 44 extends a protuberance 442.This contact 45 comprises a fixed part 450 and a docking part 451, wherein 450 groups of this fixed parts are located in the slit 411 of sliding seat 41, and stretch out outside the sliding seat 41 docking section 451, is used for docking with this two elastic portion 72 to first and second switch terminal 7 and realizes the function whether detecting TF card 9 inserts fully.

As shown in Figures 1 and 2, this first shielding casing 5 is made with metal material, and it covers this insulating body 1 top so that the effect of ELECTROMAGNETIC OBSCURANT to be provided.These first shielding casing, 5 sidewalls are provided with the first snapping piece 15 of a plurality of first snapping holes 51 with corresponding insulating body 1.Combine with these first snapping piece, 15 mutual buckles by these first snapping holes 51, this first shielding casing 5 is combined as a whole with this insulating body 1 clamping, and covers 11 tops, the first plug-in card space of this insulating body 1.As Fig. 1 and shown in Figure 3, the integrally formed elasticity compressed tablets 52 of a sidewall of this first shielding casing 5 is compressed on guide bar 43 outer rims of this trip mechanism 4 in order to elasticity, thereby this guide bar 43 can stably be matched with in the cam path 410.

As Fig. 1 and shown in Figure 4, this second shielding casing 6 is made with metal material, and it covers on this insulating body 1 bottom so that the effect of ELECTROMAGNETIC OBSCURANT to be provided.These second shielding casing, 6 sidewalls are provided with the second snapping piece 16 of a plurality of second snapping holes 61 with corresponding insulating body 1.Combine with the mutual buckle of these second snapping pieces 16 by these second snapping holes 61, this second shielding casing 6 is combined as a whole with this insulating body 1 clamping, and is covered in 12 bottoms, the second plug-in card space of this insulating body 1.Please further with reference to figure 6, this second shielding casing 6 is provided with an elasticity compressed tablets 62 of an outside projection, do not stop shell fragment 63 in order to what establish with TF card 9 that the side elasticity butt (with reference to figure 9), of recess stretches laterally, and an outside projection but tear a conflict part 64 that forms.

As Fig. 1, Fig. 6 and shown in Figure 9, this stops that shell fragment 63 has from second shielding casing, 6 outward extending

base portions

630, and 9 exit axis B extend and near partly locking the oblique elastic portion 631 of shell fragment 44 inclinations from this base portion 630 along the TF card.This conflict part 64 all is positioned at set fluting 65 homonymies of second shielding casing 6 with stopping shell fragment 63.This conflict part 64 upwards projection to be used for and the protuberance 442 of partly locking shell fragment 44 connect (repeating after the appearance as shown in figure 10).This conflict part 64 comprises that a contact part 640 is used for connecting with the protuberance 442 of partly locking shell fragment 44, and two connecting portions 641, is used for being connected with second shielding casing, 6 main bodys.Extend along the plug direction AB of TF card 9 this contact part 640, and with the main body of second shielding casing 6 difference in height is arranged and towards insulation shell 1 projection.The elastic portion 72 of these second shielding casing, 6 corresponding switch terminals 7 and the opening 18 of this insulating body 1 are provided with a window 66, and whether the two elastic portion 72 that can be used for observing switch terminal 7 accurately docks with the docking section 451 of contact 45.

As shown in Figures 1 and 2, in this SIM card 8 is inserted the first plug-in card space 11 of these connectors when locating, electrical contact 81 on this SIM card 8 can contact with first contact site 22 of these the first terminals 2 to be realized electrically connecting, and makes this SIM card 8 realize electrically connecting by memory card connector and circuit board.

As Fig. 1, Fig. 7 and shown in Figure 9, when this TF card 9 inserts in the second plug-in card space 12 via the opening 14 of insulating body 1, this TF card 9 can promote sliding seat 41 synchronization actions of this trip mechanism 4, move to half lock position up to TF card 9, the set recess 90 of the cooperation protuberance of partly locking shell fragment 44 441 meeting buckle TF card 9 sides of this trip mechanism 4, thus TF card 9 is loosely remained in half lock state.But under this half lock state, electrical contact 91 on the TF card 9 does not contact with second contact site 32 of second terminal 3 as yet and realizes electrically connecting, and also still be spaced a distance between the relative resilient portion 72 of this two switch terminal 7, do not electrically conduct between also being, so the electric connection between this connector and the memory card 9 still is in initial Open (open circuit) state.

As Fig. 1 and shown in Figure 10, continue to insert in this connector afterwards, arrive direction of insertion foremost together with sliding seat 41 continues forwards to slide along the A direction as TF card 9, and compression elastic element 42.Subsequently, sliding seat 41 is return, and guide bar 43 matches with the auxiliary section in the cam path 410, sliding seat 41 is stopped in the insulating body 1 move.At this moment, as Fig. 1 and shown in Figure 8, this TF card 9 has been inserted into the location, and the electrical contact 91 on it promptly contacts with second contact site 32 of second terminal 3 and realizes electrically connecting.At this moment, group is located at contact 45 the moving along with sliding seat 41 on the sliding seat 41, insert up to the inclined-plane of contact 45 along the free end 720 of the elastic portion 72 of this two switch terminal 7, make the elastic portion 72 of this two elastic switchs terminal 7 produce bounce because of pressurized, contact 45 is clamped between the elastic portion 72 of this two switch terminal 7, and dock respectively with two conductive junction points 721 of two elastic portion 72 free ends 720, this two elastic switchs terminal 7 is electrically conducted each other, thereby realize the detecting function that memory card inserts.Like this, can determine that this TF card 9 is connected with connector is stable, and enter the operating state of read-write that this TF card 9 is promptly realized electrically connecting with the circuit board of electronic installation by memory card connector.

As mentioned above, this novel memory card connector utilizes nonabradable Metal Contact part 45 set on the sliding seat 41 to contact with two elastic portion 72 clampings of this switch terminal 7, can make that electrical contact between the two is tightr and stable, therefore can guarantee that detecting function is errorless.Simultaneously, can overcome also that existing switch terminal only depends on terminal bending and contact with another terminal and the problem of metal fatigue, permanent deformation takes place easily, especially have under the situation of certain size tolerance at memory card itself, thus the reliability and the durability of raising switch terminal 7 and memory card connector.In addition, preferably, set two conductive junction points 721 shift to install along the plug direction AB of TF card 9 on two elastic portion 72 free ends 720 of switch terminal 7, like this, this contact 45 of trip mechanism 4 can be successively realized being electrically conducted to switch terminal 7 with this for twice, therefore can provide more reliable and stable detecting function.

As mentioned above, in traditional design, this TF card 9 only distortion elastic force (promptly partly locking recess 90 resilient engagement of the cooperation protuberance 441 and the TF card 9 of shell fragment 44) by partly locking shell fragment 44 and the frictional force between this TF card 9 and the connector guarantees that this TF card 9 can not come off unusually, therefore dislikes weak slightly.Can find that in the application of reality this TF card 9 tends to owing to artificially extract by force, or the vibrations that in moving process, produced, drop unusually and from connector, drop out, loose or dislocation, cause this TF card 9 can't operate as normal.On the contrary, as Fig. 1 and shown in Figure 10, when TF card 9 is in the following time of operating state that is locked, utilize a conflict part 64 lateral margins of second shielding casing 6 of this novel memory card connector to compress half protuberance 442 sides of locking shell fragment 44, can strengthen the arm of force that this partly locks shell fragment 44, thereby corresponding increase partly locks the fixing strength of the recess 90 of 44 pairs of TF cards 9 of shell fragment, stops to cooperate protuberance 441 to break away from from the recess 90 of TF card 9.Like this, in use be given a shock, drop or manpower when pulling out by force, also can from connector, not break away from, thereby can guarantee the use that this TF card 9 is safe and reliable even can guarantee the TF card 9 that inserts.Simultaneously, therefore cooperating because be to belong to cooperating between metal and the metal material between the conflict part 64 of second shielding casing 6 and the protuberance 442 of partly locking shell fragment 44 have enough intensity, is difficult for losing efficacy.In addition, the conflict part 64 of second shielding casing 6 is by tearing moulding, and is therefore simple in structure, easily manufactured.

Please refer to Fig. 3, Fig. 7 and Fig. 9, when desiring to withdraw from this TF card 9, this TF card 9 can be promoted along plug-in card direction A, this TF card 9 drives the sliding seat 41 of trip mechanism 4 immediately, and interlock guide bar 43 actions are simultaneously moved these guide bar 43 1 ends in this cam path 410.After the pushing of removing TF card 9,, these sliding seat 41 these TF cards 9 of drive are retreated move to half lock position because this flexible member 42 has applied the bounce that resets along moving back card direction B to sliding seat 41.At this moment, the cooperation protuberance 441 of partly locking shell fragment 44 laterally cooperates with the recess 90 of TF card 9, once more this TF card 9 is remained in half a lax lock state.Subsequently, when this TF card 9 was pulled out, the above-mentioned cooperation protuberance 441 of partly locking shell fragment 44 can break away from from the recess 90 of TF card 9, thereby withdraws from this TF card 9.

As shown in Figure 9, for overcoming when withdrawing from TF card 9, owing to the problem that the back stretch of the flexible member 42 of trip mechanism 4 causes this TF card 9 to fly out from connector rapidly, this novel memory card connector is partly locked shell fragment 44 positions in second shielding casing, 6 correspondences and is provided with one and stops shell fragment 63.As mentioned above, this stops that shell fragment 63 has along the exit axis B extension of TF card 9 and to the close oblique elastic portion 631 of shell fragment 44 inclinations of partly locking.Make withdrawing from this TF card 9 its be in as shown in Figure 9 partly lock state the time, this stop that the elastic portion 631 of shell fragment 63 connects with the free end that cooperates protuberance 441 of partly locking shell fragment 44 and the cooperation protuberance 441 of half-and-half locking shell fragment 44 to the TF card 9 direction application of forces, thereby reduce even offset the impulsive force of flexible member 42 in moving back the card process, suppress the flexural deformation that this partly locks shell fragment 44, increased this and partly locked the cooperation protuberance 441 of shell fragment 44 and the retain strength between TF card 9 recesses 90.Like this, when taking out TF card 9, can effectively prevent the problem that this TF card 9 can fly out rapidly from second socket 14 of insulation shell 1.And, this stops that the design of shell fragment 63 can absorb the tolerance of TF card 9, promptly when the size of this TF card 9 has certain plus-minus tolerance, this elastic portion 631 that stops shell fragment 63 with partly lock cooperating between the protuberance 441 of shell fragment 44 can corresponding edge away from or compress mutually and can absorb these tolerances towards the direction of TF card 9.

In sum, compared to prior art, be to utilize the Metal Contact part 45 on the sliding seat 41 to contact with this effective clamping to elastic switch terminal 7 according to this novel memory card connector, be difficult for deforming, therefore have reliable and stable detecting function.When TF card 9 inserts fully and is in running order, by compressing mutually of conflict part 64 and the protuberance 442 of partly locking shell fragment 44, can change this and partly lock the arm of force of shell fragment 44 and the retain strength of 44 pairs of TF cards 9 of shell fragment is partly locked in corresponding increase, thereby guarantee that the TF card 9 that inserts in use can not be given a shock, drop unusually or external force influence and coming off.In addition, when withdrawing from TF card 9, utilize the elastic portion that stops shell fragment 63 631 of this novel connector to connect, can prevent effectively that this TF card 9 from flying out rapidly from connector with protuberance 441 free ends that cooperate of partly locking shell fragment 44.

Claims

1. memory card connector comprises:

One insulating body has the insertion that a plug-in card space is used for a ccontaining corresponding memory card at least;

A plurality of conducting terminals are contained in this insulating body, in order to electrically to contact with the corresponding contact of memory card;

At least one first switch terminal and a second switch terminal, be contained in this insulating body, each switch terminal has a holding parts and is used for extending insulating body with insulating body fixing, a pin portion by holding parts one end, and an elastic portion extends inward into insulating body by holding parts one end; And

One trip mechanism can move on this insulating body;

It is characterized in that: the two elastic portion of this first and second switch terminal remains and is spaced a distance, and this trip mechanism has a Metal Contact part at least; When memory card inserts the plug-in card space of insulating body fully, the Metal Contact part of trip mechanism moves thereupon, between the two elastic portion that inserts this switch terminal, and by this two elastic portion resilient clamp with contact, thereby electrically conduct this first switch terminal and second switch terminal, realize the detecting that memory card is inserted.

2. memory card connector as claimed in claim 1 is characterized in that the shape symmetry of this first switch terminal and second switch terminal, and is corresponding arrangement in insulating body.

3. memory card connector as claimed in claim 2 is characterized in that the elastic portion of each switch terminal has the free end of a curved structure, and this free end is provided with a conductive junction point and is used for contacting with this Metal Contact part of trip mechanism.

4. memory card connector as claimed in claim 3 is characterized in that two conductive junction points on the two elastic portion of this two switch terminal shift to install along the plug direction of memory card.

5. memory card connector as claimed in claim 1 it is characterized in that this trip mechanism further has a sliding seat and moves on this insulating body for trip mechanism, and a flexible member is arranged on this sliding seat.

6. memory card connector as claimed in claim 5, this Metal Contact part that it is characterized in that this trip mechanism comprises a fixed part and a docking part, this fixed part is mounted in the sliding seat, and this docking section stretches out sliding seat, when memory card inserted the plug-in card space of insulating body fully, the docking section of this Metal Contact part contacted with the two elastic portion clamping of this two switch terminal along with the slip of sliding seat.

7. memory card connector as claimed in claim 1 is characterized in that the contiguous side-walls that trip mechanism is installed of this insulating body is provided with an opening, and the two elastic portion of this switch terminal partly is contained in this opening.

8. memory card connector as claimed in claim 7, it is characterized in that further comprising a shielding casing, the opening of this shielding casing coated insulation body and corresponding insulating body is provided with a window, is contained in the two elastic portion of this switch terminal in the opening of insulating body in order to exposed portions serve.

9. memory card connector comprises:

One insulating body is provided with the insertion that a plug-in card space is used for a ccontaining corresponding memory card at least;

A plurality of conducting terminals are contained in this insulating body;

One trip mechanism can move on this insulating body, and this trip mechanism has a flexible member at least and is used to produce elastic force, and half lock shell fragment is used for matching memory card is remained in half lock state with a recess of memory card; And

At least one shielding casing is used to coat this insulating body;

It is characterized in that: the shell fragment of partly locking of the corresponding trip mechanism of this shielding casing is provided with one and stops shell fragment, and when memory card withdraws from this connector, but this stops that the shell fragment butt partly locks shell fragment, slows down this flexible member to outside elastic force that memory card applied.

10. memory card connector as claimed in claim 9 is characterized in that this shielding casing is provided with a fluting, and this stops that shell fragment is positioned at this fluting.

11. memory card connector as claimed in claim 9 is characterized in that this trip mechanism further comprises a sliding seat and can slide along the plug direction of memory card, this flexible member is used for this sliding seat is applied elastic force.

12. memory card connector as claimed in claim 11, it is characterized in that this partly locks shell fragment and be installed on this sliding seat, and have a fixed part and and cooperate protuberance, this cooperation protuberance protrudes in the plug-in card space of insulating body, in order to match with the recess of memory card and memory card is remained in half lock state.

13. memory card connector as claimed in claim 12, it is characterized in that this stops that shell fragment has from the base portion of shielding casing to the insulating body projection, an and elastic portion of the extension of the exit axis from this base portion along memory card, when withdrawing from memory card, this stops the elastic portion of shell fragment and partly locks shell fragment and connect, and makes this cooperation protuberance secure fit of partly locking shell fragment in the recess of memory card.

14. memory card connector as claimed in claim 12, it is characterized in that this shielding casing further comprises a conflict part, this conflict part comprises a contact part and two connecting portions that are connected with the shielding casing main body, extend along the plug direction of memory card this contact part, and one difference in height is arranged and towards the insulating body projection with respect to shielding casing.

15. memory card connector as claimed in claim 14, an edge that it is characterized in that the fixed part that this partly locks shell fragment is provided with a protuberance towards the shielding casing projection, when memory card insert fully insulating body the plug-in card space and when in running order, the lateral margin of the conflict part of this shielding casing just compresses mutually with the side of the protuberance of partly locking shell fragment, and is difficult for when making memory card in working order deviating from because of external force.

16. memory card connector as claimed in claim 14 is characterized in that this shielding casing is provided with a fluting, this stops that shell fragment and this conflict part all are positioned at this fluting and are positioned at homonymy.

17. memory card connector as claimed in claim 14 is characterized in that this stops that the shell fragment punching press makes, and should tear shaping by the conflict part.

18. memory card connector as claimed in claim 14 is characterized in that this stops that shell fragment relatively should the conflict part more be adjacent to the spigot in insulating body plug-in card space.

19. memory card connector as claimed in claim 9 it is characterized in that the sidewall of this shielding casing is provided with a plurality of snappings hole, and the outer peripheral edges correspondence of insulating body is provided with a plurality of snapping pieces, in order to mutual buckle combination.

20. memory card connector as claimed in claim 9, it is characterized in that this stops that shell fragment is provided with an elasticity compressed tablets to this shielding casing relatively, this elasticity compressed tablets is extended towards the insulating body projection and along the plug direction of memory card, in order to not establish a side elasticity butt of recess with memory card.

21. a memory card connector comprises:

A plurality of conducting terminals are contained in this insulating body;

One trip mechanism, group is located on this insulating body, this trip mechanism comprises a flexible member that this sliding seat is applied elastic force along a sliding seat of memory card plug direction slip, along the memory card exit axis, and has half lock shell fragment that the fixed part that is installed on this sliding seat and cooperates protuberance, this cooperation protuberance protrudes in the plug-in card space of insulating body, in order to match with a recess of memory card and memory card is remained in half lock state; And

One shielding casing is used to coat this insulating body;

It is characterized in that: this edge of partly locking the fixed part of shell fragment is provided with a protuberance, and this shielding casing is provided with a conflict part to the protuberance that should partly lock shell fragment, this conflict part comprises a contact part, and two connecting portions that are used for being connected with shielding casing, wherein extend along the plug direction of memory card this contact part, and one difference in height is arranged with shielding casing, when memory card inserts fully and is in running order, the lateral margin of this shielding casing contact part compresses mutually with this side of partly locking the shell fragment protuberance, and is difficult for when making memory card in working order deviating from because of external force.

22. memory card connector as claimed in claim 21 is characterized in that this shielding casing is provided with a fluting, this conflict part is positioned at this fluting.

23. memory card connector as claimed in claim 21 is characterized in that this conflict part tears shaping.

24. memory card connector as claimed in claim 21 it is characterized in that the sidewall of this shielding casing is provided with a plurality of snappings hole, and the outer peripheral edges correspondence of insulating body is provided with a plurality of snapping pieces, in order to mutual buckle combination.

25. memory card connector as claimed in claim 21, it is characterized in that this shielding casing should be provided with an elasticity compressed tablets by the conflict part relatively, this elasticity compressed tablets is extended towards the insulating body projection and along the plug direction of memory card, in order to not establish a side elasticity butt of recess with memory card.