CN2492871Y

CN2492871Y - Memory card connector

Info

Publication number: CN2492871Y
Application number: CN 01221936
Authority: CN
Inventors: 徐淑惠
Original assignee: Molex LLC
Current assignee: Molex LLC
Priority date: 2001-05-04
Filing date: 2001-05-04
Publication date: 2002-05-22
Anticipated expiration: 2011-05-04

Abstract

A memory card connector for the plugging of a memory card allows the plugged memory card to have an electrical connection on a circuit board. The memory card connector consists of an insulated shell, a conductive terminal and two metal connecting parts. The insulated shell has a body, two plugging arms stretching in the same direction are vertically provided on both ends of the body in the length direction, and the body and the plugging arms enclose a plugging space. The conductive terminal is positioned in the body, wherein, one end of the conductive terminal is exposed outside the plugging space, and the other end is exposed from one side of the body, which is apart from the plugging space. One end of each plugging arm, which is apart from the body, is connected with one metal connector, an inserting sheet provided on the metal connector is inserted into the slot hole of the plugging arm, and an elastic arm with a grounding component is stretched to release generated electromagnetic effect.

Description

Memory card connector

The utility model relates to a kind of memory card connector, the on-deformable memory card connector of particularly a kind of grafting arm.

Traditional memory card connector as shown in Figure 5, it is on a circuit board 90, put the body 92 of a memory card connector, these body two ends extend two grafting arms 93 in the same direction, the end of each arm of pegging graft is nested with a metal connecting piece 94 again, surround a grafting space 98, two grafting arms 93 towards grafting space 98 by this body 92 and two grafting arms 93, respectively be provided with a lead segment 933 parallel with grafting arm 93 bearing of trends.A plurality of terminals 95 run through body 92, and an end of terminal 95 is exposed to grafting space 98, and the other end of terminal 95 is exposed to the phase heteropleural in grafting space and is electrically connected at circuit board 90; The lead segment 933 of one memory card, 91 corresponding grafting arms 93 is provided with guide channel 911, when memory card 91 towards this grafting space 98 when inserting, guide channel 911 advances along lead segment 933, terminal 95 is inserted in the corresponding spliced eye (figure does not show) of memory card, make memory card 91 and terminal 95 electrically connect and be communicated in circuit board 90.

Please see Figure shown in 6, this grafting arm 93 forms a snapping section 931 and a spliced eye 932 away from an end of body again, and the direction of this spliced eye 932 is and the same direction of this grafting arm bearing of trend; Two metal connecting pieces 94 are the square pipe-shaped body of a hollow, extend an inserted terminal 942 near one of this grafting arm 93 end, and the direction of extending against grafting arm 93 is planted in the spliced eye 932 on the grafting arm 93; The snapping section 931 of corresponding grafting arm 93, metal connecting piece 94 is provided with a snapping sheet 941 in tube wall, when metal connecting piece 94 is enclosed within on the grafting arm 93, can be buckled in the snapping section 931 of grafting arm 93; Metal connecting piece 94 is provided with the grounding path that a ground lug 943 is electrically connected at circuit board 90 (with reference to Fig. 5), can discharge the electromagnetic interference (EMI) that is produced when memory card 91 inserts grafting space 98.

Still please see Figure 5, because memory card connector is used for accurate electronic product, when this memory card 91 inserted grafting space 98, its precision requirement was very high, and its spliced eye (figure does not show) must align corresponding terminal 95, and crooked not positive situation can not be arranged.See also Fig. 6 again, the insulator that body 92 and grafting arm 93 are made for plastics in the memory card device, the contraction of plastic material becomes certain relation with the section of plastic products in the cooling procedure of molded this body 92 of plastics and grafting arm.If identical section, its shrinkage rates unanimity, if it is constituted by different sections, then the amount of contraction of its different section just produces difference, and it is big more that section differs, and the distortion that different section produces is big more.So, the thin more distortion of grafting arm 93 is big more, an end of grafting arm 93 is in order to want socket metal connecting piece 94 among the figure, dwindling section is snapping section 931, distortion relatively became big (as the right grafting arm distortion signal among the figure) when it was mold formed, the snapping section 931 of this grafting arm 93 is shunk because of cooling and has been departed from former grafting arm bearing of trend one angle A, its metal connecting piece that is inserted in 94 also departs from along with the snapping section 931 that has departed from, influence accuracy and electric conductivity thereof that memory card 91 inserts, and electronic product performance is not reduced.Again, be subjected to the guiding and the restriction of lead segment 933 during memory card 91 grafting grafting spaces 98, it is better that long more then these memory card 91 insertion backs of this lead segment 933 are fixed, but, as the grafting arm 93 among Fig. 6 in order to want socket metal connecting piece 94, must abdicate the length of a snapping section 931 in grafting arm 93, thereby shorten the length of this lead segment 933, the function that causes guiding fixed memory card 91 is greatly affected.

Therefore, fundamental purpose of the present utility model provides a kind of on-deformable memory card connector, improves memory card and inserts the accuracy of memory card connector and keep satisfactory electrical conductivity.

So, memory card connector of the present utility model, the one side is electrically connected at a circuit board, and opposite side snaps in the back for a memory and electrically connects this memory card; This memory card connector comprises:

One insulation shell, insulation shell has an elongate body, the grafting arm of a symmetry is extended at the two ends of one side in the same direction respectively on the length direction of body, make body become a grafting space with two grafting upper-arm circumferences, each arm of pegging graft is provided with a slotted eye at the arm face away from the grafting space, the Width of body is provided with a plurality of through holes, and a plurality of butt of tolerable correspondence pass;

Two metal connecting pieces, this metal connecting piece is formed by a junction and from the elastic arm that the connecting portion one is extended; This connecting portion is overlapped in the end and the slotted eye by the slotting arm of an inserted sheet of grafting arm away from body, and the elastic arm that one is extended is provided with the grounding path that an earthing component is connected to this circuit board, the galvanomagnetic effect in the time of can discharging the memory card insertion.

Other features of the present utility model and advantage, in the detailed description of following cooperation with reference to the preferred embodiment of accompanying drawing, can be clear, in graphic:

Fig. 1 is the preferred embodiment of the utility model memory card connector and circuit board and memory card correlationship figure;

Fig. 2 is the utility model memory card connector preferred embodiment three-dimensional exploded view;

Fig. 3 is the stereographic map of the utility model memory card connector preferred embodiment metal connecting piece;

Fig. 4 is another enforcement aspect synoptic diagram of elastic arm of the utility model memory card connector preferred embodiment metal connecting piece;

Fig. 5 is prior art memory card connector and circuit board and memory card correlationship figure;

Fig. 6 is a prior art memory card connector three-dimensional exploded view.

See also shown in Figure 1ly, a memory card connector 3 places on the circuit board 1, accepts a memory card 2 and inserts and connect.This memory card connector 3 is by an insulation shell 30, and two metal connecting pieces 35 that are connected on the insulator 30, and places a plurality of terminals 38 in the insulation shell 30 to form.

See also Figure 1 and Figure 2, the insulation shell 30 of memory card connector 3 has a strip body 31, and two ends of body 31 respectively are provided with a fixed orifice 310, can borrow a retaining element such as bolt (figure does not show) fixed insulation housing 30 on circuit board 1; The one side of body 31 length directions is a front 311, and another side and front 311 heteropleural mutually are a back 312, and an end face 314; Body 31 in front 311 and back 312 between, a plurality of perforation through holes 313 are set, after a plurality of terminals 38 are inserted corresponding through hole 313, be exposed to an end of front 311 and circuit board 1 electrically connects, terminal 38 is exposed to that an end of next 312 is treated and the memory card 2 that inserts electrically connects; Body 31 2 ends extend two symmetrical grafting arm 32, two grafting arms 32 backwards and surround a grafting space 50 with body 31; Grafting arm 32 is that one first upright arm face, 321, the first upright arm faces, 321 upper edge grafting arms, 32 bearing of trends are provided with a lead segment 322 to the arm face in grafting space 50; Also has a horizontal arm face 323 on the grafting arm 32, this horizontal arm face 323 is provided with a shoulder 324 that sink away from these body 31 1 distances, shoulder 324 is provided with a location projection 320, and extend one section flange 325 along the surface level of this horizontal arm face 323 and this shoulder 324 to grafting space 50,322 parallel to each other being separated by of lead segment on this flange 325 and the first arm face; This grafting arm 32 is provided with a upright slotted eye 33 that protrudes this arm face on one second upright arm face 326 away from grafting space 50, the shoulder of this protrusion forms two of the upright slotted eye 33 upright cell wall 331 of being separated by.Two metal connecting pieces 35 respectively are connected in the end of corresponding grafting arm 32 away from body 31, and metal connecting piece 35 has an a junction 36 and an elastic arm 37.Connecting portion 36 is a L shaped body, and it is a horizontal arm 361 that groove becomes a L shaped arm, and horizontal arm 361 is overlapped in the shoulder 324 on the grafting arm 32, makes metal connecting piece 35 be overlapped in the horizontal arm face 322 same planes of horizontal arm 361 surfaces and grafting arm 32 behind the grafting arm 32; The horizontal arm 361 of connecting portion 35 also is provided with a pilot hole 362, can be placed on the locating convex block 320 of shoulder 324 on the horizontal arm face 322 of grafting arm 32; Another arm that connecting portion 36 constitutes is a upright arm 363, upright arm 363 is provided with an inserted sheet 364, have by the inserted sheet 364 and insert and put interval 365, two limits of this inserted sheet 364 are provided with the pressing portion 366 of zigzag (or reversed acanthoid), when inserted sheet 364 being planted go into to peg graft the slotted eye 33 of arm 32 second upright arm faces 326, pressing portion 366 forms press fit with the arm face of slotted eye 33, and makes and insert and put at interval 365 cell walls 331 that can be folded in slotted eye 33, makes metal connecting sheet 35 more firmly be connected on the grafting arm 32; One elastic arm 37 is from an end of the upright arm 363 of connecting portion 36, behind 50 invaginations, one shoulder 367 of grafting space, and the direction elasticity of extension arm 37 that extends towards grafting arm 32 again; Elastic arm 37 has the be separated by elastic arm 37 of opposition of a vertical section 371, two basically, and its vertical section 371 1 is arm face and the grafting arm 32 first upright arm face 321 in opposite directions totally one plane in opposite directions, makes the memory card 2 can be along insertion grafting space, same plane 50; To grafting space 50 shell fragment 372 that protrudes is set on the vertical section 371, the lower edge of vertical section 371 and protrude out a joint fastener 373 can with circuit board 1 fixing location, and vertical section 371 is provided with an earthing component 374 for reaching electrical the contact with the grounding path solder joints of circuit board 1; When memory card 2 inserted grafting spaces 50, shell fragment 372 contacted with memory card 2, and the galvanomagnetic effect that produces in its insertion process is passed to earthing component 374 via this shell fragment 372 and reaches the grounding path of circuit board 1 again and be released; In order to increase the rigidity of elastic arm 37, the top of its vertical section 371 also can add a horizontal segment 375, and horizontal segment 375 also has guide function when memory card 2 inserts simultaneously;

Metal connecting piece 35 shown in Figure 4 is identical with Fig. 3 major part, precisely because elastic arm 37 is away from an end of connecting portion 36, make its horizontal segment 375 ends fairlead 376 that ftractures, this fairlead 376 departs from 375 one-tenth one inclined-planes of this horizontal segment away from memory card 2 insertion positions, correctly inserts with guiding memory card 2.

See also shown in Figure 1 again, the dual side-edge of memory card 2 respectively has a guide groove 21, memory card 2 is towards a plurality of patchholes 22 of the insertion end tool of memory card connector 3, when memory card 2 inserts memory card connector 3, the lead segment 322 that the guide groove 21 of memory card 2 snaps in grafting arm 32 is guided and limits, and terminal 38 is correctly inserted in the patchhole 22 electrically connect.Insert in the process of memory card connector 3 at memory card 2, interference such as the static electromagnetism that is produced, contact with memory card 2 by the metal clips 372 that protrudes, and cause the grounding path that earthing component 374 (with reference to Fig. 2) is directed to circuit board 1 through conduction and discharged, so can avoid the electromagnetic interference (EMI) in the insertion process.

Prior art (with reference to Fig. 6) grafting arm 93 must be abdicated the length of a snapping section 933 in order to want socket metal connecting piece 94 in grafting arm 93, thereby shortens the length of this lead segment 933, causes guiding the dysfunction of fixed memory card 91; In the present embodiment, the length that the lead segment of grafting arm 32 322 is extended, the arm 32 that can extend to and peg graft is isometric, thereby makes the memory card 2 of insertion can more firm correct being guided and limiting; Secondly, grafting arm 32 section variation are little in the present embodiment, do not have uneven contraction when plastic film is mold formed, still keep original bearing of trend after grafting arm 32 is shaped, original direction also can be kept after connecting metal connecting piece 35 in the end of grafting arm 32, improves the yield when making; In addition, flange 325 that extends on the horizontal arm face 323 of grafting arm 32 and the horizontal segment 375 on metal connecting piece 35 elastic arms 37 all are to protrude out to grafting space 50, the many one guiding restriction that weighs when also providing memory card 2 to insert; And for example shown in Figure 3, on the connecting portion 36 and the shoulder 367 in the middle of the elastic arm 37 of the metal connecting piece 35 in the present embodiment, for the reinforcement of transferring can add a reinforced ribs 368 so that the elasticity and the rigidity of elastic arm 37 integral body to be provided.

Only, above-mentioned accompanying drawing and explanation only are embodiment of the present utility model, and be non-for limiting enforcement of the present utility model; Generally be familiar with those skilled in the art, do other equivalences according to the utility model feature category and change or modify, all should be encompassed in the claim of application of following this case.

Claims

1. a memory card connector is electrically connected at a circuit board, inserts the back for a memory card and electrically connects described memory card, and it is characterized in that: described memory card connector comprises:

One insulation shell has:

One elongate body; Described body has a front, a back, an end face and a bottom surface, is provided with a plurality of through holes that run through between forward and backward of the described body;

Two grafting arms extend back respectively from the two ends of described body, and described two grafting arms have horizontal arm face and upright arm face respectively, mutually away from the upright arm face on be respectively equipped with a upright slotted eye;

Many butts is placed in respectively in each described through hole, and the one end is positioned at the body back, and the other end passes before by described body;

The elastic arm that two metal connecting pieces, each described metal connecting piece have a junction and extended by an end of described connecting portion; Described connecting portion is provided with an inserted sheet, insert on each described corresponding grafting arm in the slotted eye, and described elastic arm extends from an end one of described connecting portion, and makes described two elastic arms arm face and described two grafting arms vertical surface in opposite directions totally one plane in opposite directions; Described elastic arm also has an earthing component, is electrically connected at the grounding path of described circuit board.

2. memory card connector as claimed in claim 1 is characterized in that: described slotted eye be convexly set in described grafting arm away from the upright arm face on; The described connecting portion of described metal connecting piece is a L shaped lamellar body, has a horizontal arm and a upright arm, forms an inserted sheet in described upright arm, inserts on each described corresponding grafting arm in the slotted eye.

3. memory card connector as claimed in claim 2 is characterized in that: described upright arm is provided with at least one inserting and putting at interval, is folded in the cell wall of described slotted eye.

4. memory card connector as claimed in claim 3 is characterized in that: the described horizontal arm face back segment of the described grafting arm shoulder that sink, described shoulder are provided with that a location is protruding determines; The described horizontal arm that reaches described metal connecting piece is provided with the pilot hole of a corresponding described locating convex block, makes described horizontal arm be overlapped in described horizontal arm face, and described pilot hole is placed on described locating convex block.

5. memory card connector as claimed in claim 4 is characterized in that: described elastic arm is provided with a shell fragment and protrudes from described elastic arm arm face in opposite directions.

6. memory card connector as claimed in claim 5 is characterized in that: described grafting arm upright arm face in opposite directions is provided with a lead segment along described grafting arm bearing of trend, guides the direction that described memory card inserts.

7. memory card connector as claimed in claim 6 is characterized in that: described grafting arm extends a flange to ground relatively along described horizontal arm face, described flange and the parallel direction of insertion that is divided into the described memory card of guiding restriction mutually of described lead segment.

8. memory card connector as claimed in claim 7 is characterized in that: the elastic arm of described metal connecting piece is provided with a horizontal segment, increases the rigidity of elastic arm.

9. memory card connector as claimed in claim 8 is characterized in that: the described section of producing is away from an end of the described connecting portion fairlead that ftractures, and it is crossing that described fairlead and described horizontal segment are the inclined-plane, correctly inserts to guide described memory card.

10. memory card connector as claimed in claim 9 is characterized in that: described connecting portion in the described metal connecting piece and described elastic arm connection are provided with a reinforced ribs, to increase described metal connecting piece whole rigidity.

11. memory card connector as claimed in claim 10 is characterized in that: described lead segment and described grafting arm equal length.

12. as each described memory card connector in the claim 1 to 11, it is characterized in that: described inserted sheet is provided with a pressing portion, described pressing portion is hangnail or serrate.