CN100405673C

CN100405673C - clamping structure

Info

Publication number: CN100405673C
Application number: CNB2005100661626A
Authority: CN
Inventors: 邓文锋
Original assignee: Molex Interconnect Shanghai Co Ltd; Molex LLC
Current assignee: Molex Interconnect Shanghai Co Ltd; Molex LLC
Priority date: 2005-04-21
Filing date: 2005-04-21
Publication date: 2008-07-23
Anticipated expiration: 2025-04-21
Also published as: CN1855647A

Abstract

The invention discloses a clamping structure which is arranged on a circuit board opposite to an electric connector. The clamping structure comprises a locking piece, a positioning piece and a connecting piece. The locking member has a locking portion, a locking groove, and a first receiving groove. The opposite end of the daughter board, which is butted with the circuit board, can be accommodated in the card slot and locked. A first stopping part protrudes from the lower surface of the locking part. The positioning member has a second receiving groove, a second stopping portion, and a positioning portion for horizontally positioning the daughter board. The connecting piece is provided with a first connecting part accommodated in the first accommodating groove, a second connecting part accommodated in the second accommodating groove and an elastic arm connecting the first connecting part and the second connecting part. When the card is withdrawn, the locking member is elastically displaced by the elastic arm to withdraw the daughter board conveniently. In the card withdrawing process, the first stopping part and the second stopping part can be matched to control the elastic displacement within a reasonable range, so that the card holding structure automatically restores to a normal state. Therefore, the invention has the advantages of stable clamping and convenient card withdrawing.

Description

Card holding structure

Technical field

The present invention relates to a kind of card holding structure, relate in particular to a kind of and an electric connector and be relatively arranged on the circuit board, hold the card holding structure of the daughter board of pegging graft with this electric connector.

Background technology

As shown in Figure 1, 2, the Taiwan patent discloses a kind of fixing structure for electronic card No. 091207780.This fixing structure for electronic card is to collude shape spare 7, is used to fix the other end of electronic cards 9 plug termination ends that are inserted on a connector 8.This connector 8 has the slot 81 that an insulating body 80 and is formed at these insulating body 80 front ends, and these slot 81 opening parts are provided with plurality of terminals 82.Corner, electronic cards 9 edge is provided with button portion 90, is inserted in the slot 81 by its leading edge 91 to contact with terminal 82.This at least one shape spare 7 that colludes is integrated plastic parts, with connector 8 separated from one another being located on the circuit board P '.Collude shape spare 7 and have upwardly extending hook part 70, this hook part 70 is to catch on the button portion 90 of electronic cards 9 and be fixed.Hook part 70 top ends form a lead angle 700, its below has first stop section 71, its rear has by this colludes upwardly extending second stop section 72 of shape spare 7 rear sides, and forms a gap 73 between this second stop section 72 and the hook part 70, so that hook part 70 can corresponding displacement when moving back card.Collude shape spare 7 belows and be convexly equipped with at least one reference column 74, can pass corresponding hole clipping P0 ' on the circuit board P ' and will collude shape spare 7 and fix on it.

Electronic cards 9 initial insertions are depressed to be held by the guiding of the lead angle 700 of hook part 70 at operator following and are put in place behind the slot 81 of electric connector 8.When moving back card, pin hook part 70 and pull backward, the button portion 90 of electronic cards 9 and hook part 70 are broken away from, and then the original position when electronic cards 9 being returned to peg graft with connector 8.Right its elastic deformation is limited in scope because this colludes shape spare 7 is plastic parts, thereby electronic cards 9 not is very smooth and easy when withdrawing from.On the other hand, as big, reference column can be cooperated move back card and corresponding displacement takes place for providing enough elastic deformation that the location hole of circuit board is done.But so can cause locating insecure, reduce the effect that electronic cards holds.

In view of above-mentioned contradiction of moving back card and fixing effect, existing fixing structure for electronic card still needs further to improve.

Summary of the invention

Purpose of the present invention just is to provide a kind of card holding structure, this card holding structure card holding structure can firmly be fixed on the circuit board, and effectively hold the respective end of the daughter board that docks with an electric connector, when moving back card, also can provide enough elastic force to make the smooth and easy card holding structure that withdraws from of daughter board simultaneously.

For achieving the above object, the present invention adopts following technical scheme: a kind of card holding structure, be relatively arranged on the circuit board with an electric connector, and can hold a daughter board that docks with this electric connector.This card holding structure comprises a latching member, positioning piece and a connection piece.This latching member has card splenium, a draw-in groove and one first accepting groove.This keeper has one second accepting groove.This connector has first connecting portion that is contained in first accepting groove, is contained in second connecting portion of second accepting groove, and connects the elastic arm of first connecting portion and second connecting portion.The opposite end that this daughter board docks with circuit board can be the latching member locking.

This latching member has first side towards daughter board, and and its second side surface opposite; This first side forms a guiding face above draw-in groove.Protrude out a upright portion on second side of this latching member, this upright portion has three side relative with second side, and first accepting groove promptly is the first side surface direction depression of self-support portion the 3rd side to latching member.Draw-in groove is to cave in to second side surface direction from first side.The latching member lower surface protrudes out one first stopper section.

Keeper comprises a first, second portion, reaches the receiving space with first's second portion adjacency.Latching member can be installed in this receiving space.First is provided with one second accepting groove, and second connecting portion of connector promptly is contained in this second accepting groove.In addition, the keeper lower surface protrudes out the fixed part that this card holding structure is fixed to circuit board.Protrude out a fixture block on the second portion, fixture block can pass on the elastic arm of connector bayonet socket and with the elastic arm relative positioning.The second portion upper surface is through to lower surface one the 3rd accepting groove, and an assist location part is contained in the 3rd accepting groove.This assist location part protrudes out an auxiliary weld part at least outside the second portion lower surface, be used for the auxiliary circuit board that is fixed in of card holding structure.In addition, keeper also comprises one second stopper section, when pulling the card splenium and make daughter board withdraw from draw-in groove, this first stopper section can with second stopper section against.Keeper also comprises the fixing location division of daughter board, and this location division can be the reference column that one self-align upper surface protrudes out, and passes the location hole that is provided with on the daughter board and is located; One self-align catch that upper surface protrudes out also is located against the both sides of daughter board.

The elastic arm of connector comprises the back arm from the vertical bending of first connecting portion, is somebody's turn to do the forethiga of the vertical bending of back arm certainly.This second connecting portion is vertically to bend extension from forethiga, and its lower end has protruded out at least one weld part.The connector upper end protrudes out a shell fragment at least, can assist daughter board to withdraw from latching member.First connecting portion have one with the breach of described draw-in groove form fit.

The existing card holding structure existence of the effective solution of the present invention is moved back the card convenience and is compared with the contradiction of the stability that holds effect, its elasticity by the connector elastic arm provides latching member enough displacement spaces, utilize on the latching member first stopper section simultaneously and the cooperating of second stopper section of keeper prevent that displacement is excessive, thereby both made things convenient for daughter board to withdraw from, avoid it by scratch, can firmly hold again.But also filtering electromagnetic interference of connector of the present invention in addition, the electrical connection quality of raising product.

Description of drawings

Fig. 1 is the three-dimensional exploded view of an existing electronic cards card holding structure and an electronic cards;

Fig. 2 is the end view when electronic cards is held by the electronic cards card holding structure among Fig. 1;

Fig. 3 is that one card holding structure and electric connector are assemblied in the stereogram of the initial condition of docking for daughter board on the circuit board according to an embodiment of the invention;

Fig. 4 a is the stereogram when daughter card is held fixedly among Fig. 3;

Fig. 4 b is the partial enlarged drawing among Fig. 4 a;

Fig. 5 is a card holding structure stereogram according to another embodiment of the present invention;

Fig. 6 is the exploded view of card holding structure among Fig. 5;

Fig. 7 is the stereogram according to card holding structure among Fig. 3;

Fig. 8 is the card holding structure stereogram of a third embodiment in accordance with the invention;

Fig. 9 a is the vertical view during the card holding structure normal condition among Fig. 7;

Fig. 9 b is the vertical view that withdraws from card holding structure in the daughter board process among Fig. 9 a;

Figure 10 is the card holding structure stereogram of a fourth embodiment in accordance with the invention;

Figure 11 is the stereogram when card holding structure holds a daughter board among Figure 10.

Symbol description among the figure:

1 card holding structure

2 electric connectors, 20 insulating bodies

21 terminal containing slots, 22 terminals

3 daughter boards, 30 location holes

4 latching members

40 first end faces, 41 second end faces

42 draw-in grooves, 43 card spleniums

430 guiding faces, 44 first stopper sections

45 upright portions 46 the 3rd end face

47 first accepting grooves

5,5 ' keeper 50,50 ' first

500 first sides 501,501 ' second side

The 4th side, 502 the 3rd sides 503

504 second accepting grooves

51,51 ' second portion, 510 first sides

The 3rd side, 511 second sides 512

513 fixture blocks 514 the 3rd accepting groove

515,515 ' the second stopper sections

52,52 ' receiving space

53,53 ' auxiliary fixing member, 530 auxiliary weld parts

54 location divisions, 54 ' catch

540 ' guiding incline

55 fixed parts

6 connectors, 60 first connecting portions

600 breach, 601 interference parts

61,61 ' elastic arm, 610 back arms

611 forethigas, 612 bayonet sockets

62 second connecting portions, 620 weld parts

63 shell fragments

The P circuit board

Embodiment

For ease of better understanding the present invention, existing the present invention will be described in more detail in conjunction with the preferred embodiments of the present invention.

Shown in Fig. 3,4a, 4b, a pair of card holding structure 1 according to one preferred embodiment of the present invention can relative being arranged on the circuit board P of separating with an electric connector 2.This electric connector 2 comprises an insulating body 20, and the terminal 22 in some terminal containing slots that is contained in insulating body 20 21.One daughter board, 3 one ends dock with the terminal 22 of electric connector 2, and the initial condition of butt joint is that daughter board 3 roughly is 30 degree with circuit board P plane.The opposite end that presses down this daughter board 3 butt joint electric connectors 2 makes itself and circuit board P plane parallel to lock-out state, and the two ends edge is respectively each card holding structure 1 and holds fixing.

Shown in Fig. 5-6, this card holding structure 1 comprises a latching member 4, positioning piece 5, and a connection piece 6.

This latching member 4 is an insulator, has the first relative end face 40 and second end face 41.Be recessed to form a draw-in groove 42 from first end face 40 to second end face, 41 directions, collude shape card splenium 43 and form one in the upper end of this latching member 4.This colludes shape card splenium 43 and has a guiding face 430 that tilts.The level that protrudes out on the lower surface of latching member 4 on 44, the second end faces 41 of one first stopper section protrudes out a upright portion 45.Should upright portion 45 have three end face 46 relative with second end face 41, the 3rd end face 46 that certainly should upright portion 45 is to first end face, 40 directions of latching member 4, one first accepting groove 47 that caves in.This first accepting groove 47 upwards is through to the lower wall of draw-in groove 42 and communicates with it, and is through to the lower surface of first stopper section 44 downwards from draw-in groove 42.

Keeper 5 is similarly an insulator, and it comprises the first 50 and second portion 51 that roughly is cuboid, reaches an open receiving space 52 that is formed by this first 50 and second portion 51 semi-surroundings.Relative first side 500 and second side 501 about this first 50 has, and before and after connect the 3rd side 502 and the 4th side 503 of first side 500 and second side 501.First side 500 is to second side surface direction, 501 depressions, one second accepting groove 504, and these second accepting groove, 504 upper ends are through to the upper surface of first 50.Second portion 51 vertically protrudes out near 501 places, second side from the 4th side 503 of first 50, and it has the first relative side 510 and second side 511, reaches three side 512 relative with the 4th side 503 of first 50.Protrude out a fixture block 513 on the 3rd side 512 of second portion 51.Connecting one the 3rd accepting groove, 514, one auxiliary fixing member 53 from the downward surface direction of the upper surface of second portion 51 can be contained in and play a part in the 3rd accepting groove 514 to assist to fix this card holding structure 1 on circuit board P.

In the present embodiment, this auxiliary fixing member 53 is that mode with in-mold molding is formed at the sheet metal in this keeper 51.This auxiliary fixing member 53 has protruded out two auxiliary weld parts 530 (can be a plurality of or) outside the 3rd accepting groove 514, can be for being welded on the circuit board P.This auxiliary fixing member 53 can according to circumstances determine whether adopt, adopt which kind of mode, and it is changed does not influence essence of the present invention.

In addition, upwards protrude out on the upper surface that a location division is 54 self-align 5, it can pass the location hole 30 that is provided with on the daughter board 3 and daughter board 3 is located (please refer to Fig. 1-2) in the horizontal direction.This location division 54 is a location cylindricality formula in the present embodiment, and its top is similar smooth coniformly guide the insertion of daughter board 3 location holes 30 and withdraw from.The lower surface of keeper 5 protrudes out a fixed part 55 (present embodiment is a fixed leg) downwards, and this fixed leg 55 can pass the last hole clipping (not shown) that is provided with of circuit board P and this card holding structure 1 is fixing.

Connector 6 is stamped to form by a sheet metal, has one first connecting portion 60, vertically bends the elastic arm 61 that extends from first connecting portion, 60 warps, and bend second connecting portion 62 of extension from these elastic arm 61 approximate vertical.This elastic arm 61 comprises the back arm 610 that joins with first connecting portion 60, reaches the forethiga 611 that joins with second connecting portion 62.At least one shell fragment 63 forms from second connecting portion 62 or the bending extension of forethiga 611 upper ends.One weld part 620 extends from second connecting portion, 62 lower ends downward.The back arm 610 of elastic arm 61 is provided with a bayonet socket 612.First connecting portion, 60 free sides have the breach 600 of draw-in groove 42 shapes of a cooperation latching member 4, and the lower end of the lower side of this breach 600 and first connecting portion 60 all protrudes out an interference part 601.

As shown in Figure 5, during assembling, latching member 4 is installed in receiving space 52 places of keeper 5.Second connecting portion 62 of connector 6 is contained in second accepting groove 504 of the first 50 of keeper 5, and shell fragment 63 and weld part 620 extend from second accepting groove, 504 tops and below respectively on it.The forethiga 611 of elastic arm 61 attaches first side 500,510 of first 50 and second portion 51 and extends from second accepting groove, 504 places; The back arm 610 of elastic arm 61 attaches the 3rd side 512 of second portion 51 and extends, and the fixture block 513 on the second portion 51 passes the bayonet socket 612 on the arm 610 of back and locatees (with reference to Fig. 7).First connecting portion 60 is contained in first accepting groove 47 of latching

member

4, and 601 of the interference parts on it are passed first accepting groove 47 respectively and protruded out to the draw-in groove 42 of latching member 4 and lower surface and first connecting portion 60 is fastened in latching member 4.

Shown in Fig. 3,4a, 4b, initial condition by daughter board 3 butt joint electric connectors 2 presses down daughter board 3, the opposite end that daughter board 3 is docked with electric connector 2 glides along the guiding face 430 that blocks splenium 43 and enters draw-in groove 42, and the reference column 54 on the keeper 5 passes the location hole 30 on the daughter board 3 simultaneously.So, just, can be with daughter board about in the of 3, left and right sides strong fix.This moment daughter board 3 with circuit board P plane parallel, the daughter board 3 that the shell fragment 63 on the connector 4 is held compresses.In the occasion of needs, should can play the effect of ground connection with the connector 6 that circuit board P, daughter board 3 electrically contact simultaneously, the noise in the shielding environment.

Shown in Fig. 9 a, 9b, when moving back card, pinning the card splenium 43 of latching member 4 is pulled to second side, 41 directions by first side 40, elastic arm 61 by connector 6 provides enough elasticity, latching member 4 can produce corresponding displacement thereupon, thereby makes daughter board 3 deviate from (card does not show among the figure) from draw-in groove 42.Break away from daughter board 3 that latching member 4 cards press by the elasticity that provides with electric connector 2 butt ends, the reaction force of reference column 54 top smooth curves designs and shell fragment 63 in addition can be thrown off reference column 54 easily and restPosed.Can see from Fig. 9 b actual and pulling in the process that latching member 4 is because the elastic arm 61 of connector 6 acts on, its direction of displacement becomes a curve-like.

Fig. 5, the 6th is for showing the concise and to the point mapping of main invention spirit of the present invention, in fact as shown in Figure 7, for preventing to pull in latching member 4 processes, elastic arm 61 deformation are excessive to cause the fixture block 513 on the second portion 51 of keeper 5 to be thrown off with the bayonet socket 612 on the arm 610 of back, and can't recover normal condition, the second portion 51 of keeper 5 can be on its second side 511 in receiving space 52 level protrude out one second stopper section 515.The height of this second stopper section 515 should be less than or equal to the plane, lower surface place of this latching member 4.When pulling latching member 4, first stopper section 44 is close to second stopper section 515 accordingly, and in good time in second stopper section 515, and then the elastic displacement of control elastic arm 61 (please refer to Fig. 9 b) in reasonable range.

The structure of these control elastic arm 61 elastic displacement degree also can adopt other scheme.As shown in Figure 8, promptly gone up by assist location part 53 ' and extend one second stopper section 515 ', the second portion 51 ' that this second stopper section is 515 ' self-align 5 ' is gone up and is passed in receiving space 52 '.

Catch also can be adopted but not the form of reference column in location division 54 in the foregoing description, and the upper surface of the first 50 ' of 54 ' self-align 5 ' of catch is located upwards to protrude out by second side 501 ' as shown in figure 10, and forms a guiding incline 540 ' on the top.As Figure 11, when daughter board 3 was pressed down, its side can be along guiding incline 540 ' downslide and by catch about 54 ' location.

Technology contents of the present invention and technical characterstic disclose as above, yet those of ordinary skill in the art still may be based on teaching of the present invention and announcements and done all replacement and modifications that does not deviate from spirit of the present invention.Therefore, protection scope of the present invention should be not limited to the content that embodiment discloses, and should comprise various do not deviate from replacement of the present invention and modifications, and is contained by the present patent application claim.

Claims

1. a card holding structure is relatively arranged on the circuit board with an electric connector, can hold a daughter board that docks with this electric connector; It is characterized in that this card holding structure comprises a latching member, positioning piece and a connection piece; This latching member has a card splenium, a draw-in groove, and one first accepting groove; This keeper has one second accepting groove; This connector has first connecting portion that is contained in described first accepting groove, is contained in second connecting portion of described second accepting groove, and connects the elastic arm of first connecting portion and second connecting portion; The opposite end that this daughter board docks with electric connector can be the latching member locking.

2. card holding structure as claimed in claim 1 is characterized in that opposite end that described daughter board docks with electric connector is that initial position from butt joint is pressed down and crosses the card splenium and be contained in the draw-in groove.

3. card holding structure as claimed in claim 1 is characterized in that this latching member has first side towards daughter board, and and its second side surface opposite; This first side forms a guiding face on the card splenium above the draw-in groove.

4. card holding structure as claimed in claim 3 is characterized in that protruding out a upright portion on second side of this latching member, this upright portion has three side relative with described second side; Described first accepting groove is the first side surface direction depression of self-support portion the 3rd side to described latching member.

5. card holding structure as claimed in claim 3 is characterized in that described draw-in groove caves in to second side surface direction from latching member first side.

6. as one of them described card holding structure of claim 1-5, it is characterized in that described latching member lower surface protrudes out one first stopper section.

7. card holding structure as claimed in claim 1 is characterized in that described keeper comprises a first, second portion, reaches the receiving space that is formed by first's second portion semi-surrounding; Described latching member is installed in this receiving space.

8. card holding structure as claimed in claim 7 is characterized in that described first is provided with one second accepting groove, and second connecting portion of described connector promptly is contained in this second accepting groove.

9. card holding structure as claimed in claim 7 is characterized in that protruding out a fixture block on the described second portion, has a bayonet socket on the elastic arm of described connector, and described fixture block can pass bayonet socket and with the elastic arm relative positioning.

10. card holding structure as claimed in claim 1 is characterized in that described keeper lower surface protrudes out the fixed part that this card holding structure is fixed to circuit board.

11. card holding structure as claimed in claim 7 is characterized in that being through to lower surface from described second portion upper surface has one the 3rd accepting groove, an assist location part is contained in the 3rd accepting groove.

12. card holding structure as claimed in claim 11 is characterized in that described assist location part protrudes out an auxiliary weld part at least outside the second portion lower surface.

13. card holding structure as claimed in claim 6 is characterized in that described keeper comprises one second stopper section; When pulling the card splenium and making daughter board withdraw from draw-in groove, this first stopper section can by second stopper section against and spacing.

14. card holding structure as claimed in claim 1 is characterized in that described keeper also comprises a location division.

15. card holding structure as claimed in claim 14 is characterized in that described location division is the reference column that one self-align upper surface protrudes out, when the opposite end that daughter board docks with electric connector pressed down, it passed the location hole that is provided with on the described daughter board.

16. card holding structure as claimed in claim 14 is characterized in that described keeper is the catch that one self-align upper surface protrudes out, when the opposite end that daughter board docks with electric connector pressed to locked position of coupler, it was against the both sides of described daughter board.

17. card holding structure as claimed in claim 1 is characterized in that the elastic arm of described connector comprises from the vertical back arm that bends of first connecting portion, is somebody's turn to do the forethiga of the vertical bending of back arm certainly; This second connecting portion is vertically to bend extension from forethiga.

18. card holding structure as claimed in claim 1 is characterized in that described connector lower end has protruded out at least one weld part.

19. card holding structure as claimed in claim 1 is characterized in that described connector upper end protrudes out a shell fragment at least.

20. card holding structure as claimed in claim 1 is characterized in that described first connecting portion has the interference part of at least one first accepting groove that stretches into latching member and this connector is fixed in latching member.