CN201584536U

CN201584536U - Electronic card connector

Info

Publication number: CN201584536U
Application number: CN 200920269226
Authority: CN
Inventors: 邓文锋
Original assignee: Shanghai Moshi Connector Co Ltd; Molex LLC
Current assignee: Molex Interconnect Shanghai Co Ltd; Shanghai Moshi Connector Co Ltd; Molex LLC
Priority date: 2009-11-12
Filing date: 2009-11-12
Publication date: 2010-09-15
Anticipated expiration: 2019-11-12

Abstract

An electronic card connector comprises an insulation base body and a plurality of conductive terminals, a shielding case and a detection switch that are inserted on the insulation base body, wherein each conductive terminal comprises a butt joint part and a welding part; the detection switch comprises a detection terminal and a conductive element; the detection terminal comprises a base part, a contact part extending out of one end of the base part in a bending manner, a welding part extending out of the other end thereof in a bending manner, and a first fixing part which extends out of the middle section of the base part and is fixedly inserted on the insulation base body; the detection terminal further comprises a second fixing part which further extends out of the welding part in a bending manner and is fixedly inserted on the insulation base body as well; and the welding area of the welding part of the detection terminal is much larger than that of a single conductive terminal. The design of the detection terminal of the electronic card connector can effectively enhance the adhesive force between the electronic card connector and a circuit board.

Description

Electronic card coupler

Technical field

The utility model relates to a kind of electric connector, relates in particular to a kind of electronic card coupler that can improve circuit board adhesive force.

Background technology

Chinese patent ZL200720070445.2 discloses a kind of electronic card coupler, comprises insulating body, and a plurality of conducting terminals are installed in the terminal containing slot on this insulating body; Shielding casing comprises roof, and cover is overlying on the insulating body top and forms the plug-in card space with card inserting mouth jointly with insulating body; Detection switch, be installed in a side of insulating body, comprise movable terminal and the electric-conductor adaptive with it, this movable terminal comprises base portion, end from base portion bends extended weld part, side from the other end of base portion along this insulating body is by card inserting mouth extended first movable part in the plug-in card space, and extend and protrude into second movable part in the plug-in card space by the bending of the elongated end of this first movable part, this movable terminal also comprises and is positioned at this first movable part below, side from this base portion along this insulating body is by card inserting mouth extended holding parts in the plug-in card space.This insulating body is provided with the mounting groove corresponding to this holding parts, thereby this movable terminal can be installed in a side of this insulating body.Thereby, when the external electric subcard when this card inserting mouth inserts this plug-in card space, the side of electronic cards can side direction applies pressure to this movable terminal and makes this movable terminal and this electric-conductor inconsistent, and make this detection switch be transformed to closure state by disconnection, can learn the current electronic cards that is plugged with in this electronic card coupler for relevant circuit.

Above-mentioned this electronic card coupler mainly relies on the welding relation between conducting terminal and the circuit board to adhere to and is fixed on the circuit board, but because in use connector may be subjected to the external force that makes progress that electronic cards applies, if the adhesive force between connector and the circuit board is strong inadequately, will exist the solder joint between conducting terminal and the circuit board to be destroyed, even the risk that comes off from circuit board of connector integral body.And adopt the independently pad that increases shown in Chinese patent 200720147148.3 to increase the mode of connector adhesive force, can be subjected to the spatial limitation of connector self again and cause the operation in the assembling to increase.

The utility model content

The technical problems to be solved in the utility model is, how under the situation of not introducing new pad, thereby the circuit board adhesive force that improves connector prevents that connector from coming off from circuit board.

The utility model solves the technical scheme that above-mentioned technical problem takes, and proposes a kind of electronic card coupler, and it comprises an insulating base frame and is plugged in a plurality of conducting terminals, a shield shell and a detection switch on this insulating base frame; Each conducting terminal comprises an a docking part and a weld part; This detection switch comprises a detecting terminal and an electric-conductor, this detecting terminal comprises a base portion, bend an extended contact site by this base portion one end, one first holding parts that bends an extended weld part and stretch out by this base portion other end by this base portion middle section position, this first holding parts is planted and is fixed on this insulating base frame, this detecting terminal also comprises by extended second holding parts of the further bending of this weld part, this second holding parts is also planted and is fixed on this insulating base frame, and the bonding area of the weld part of this detecting terminal is bigger than the bonding area of the weld part of single conducting terminal.

Compared with prior art, electronic card coupler of the present utility model by set up second holding parts on original detecting terminal, can strengthen the adhesion between detecting terminal and the insulating base frame, effectively to prevent to detect separating of terminal and insulating base frame; Meanwhile the area of the weld part by increasing the detecting terminal can improve the adhesive force between detecting terminal and the circuit board, and and then improve adhesive force between electronic card coupler and the circuit board, thereby prevent that effectively electronic card coupler from coming off from circuit board.

Description of drawings

Fig. 1 is the stereogram of the electronic card coupler of the utility model embodiment;

Fig. 2 is another visual angle stereogram of the electronic card coupler of the utility model embodiment;

Fig. 3 is the front view of the electronic card coupler of the utility model embodiment;

Fig. 4 for A-A among Fig. 3 to, the cross section view that amplified;

Fig. 5 is the three-dimensional exploded view of the electronic card coupler of the utility model embodiment;

Fig. 6 is another three-dimensional exploded view of the electronic card coupler of the utility model embodiment;

Fig. 7 is the stereogram of detecting terminal in the electronic card coupler of the utility model embodiment;

Fig. 8 is the electronic card coupler of the utility model embodiment and the three-dimensional exploded view of circuit board;

Fig. 9 is the electronic card coupler of the utility model embodiment and the stereogram after the circuit board combination;

Figure 10 is electronic card coupler and the circuit board combination back of the utility model embodiment and the stereogram that is plugged with electronic cards.

Embodiment

Below in conjunction with accompanying drawing, being example with a kind of SD card connector gives elaboration further to a preferred embodiment of the utility model electronic card coupler.

To shown in Figure 10, the electronic card coupler 10 of the utility model embodiment comprises an insulating base frame 1 and a plurality of conducting terminals 2, a shield shell 3 and the detection switch 4 that are plugged on this insulating base frame 1 as Fig. 1.This electronic card coupler 10 can correspondence be welded on the circuit board 20, and can correspondingly peg graft a SD card 30 in this electronic card coupler 10.Wherein,

To shown in Figure 6, this insulating base frame 1 comprises a plurality of terminal grooves 11 that extend from front to back along the plug-in card direction, is positioned at two draw-in grooves 12 and two blocks 13 of both sides, and mounting groove 14, one first fixing hole 15 and one second fixing hole 16 as Fig. 5.

Each conducting terminal 2 comprises a weld part 21 and a docking part 22, and each conducting terminal 2 is to be plugged in accordingly in the terminal groove 11 of insulating base frame 1.Weld part 21 can corresponding be welded on the pad of circuit board 20.

This shield shell 3 comprises a roof 31 and left and right two sidewalls 32,33.Be respectively equipped with on left and right two

sidewalls

32,33 two buckling pieces 321,331 and two the fluting 322,332, the bottom of left and right two

sidewalls

32,33 also be respectively equipped with bend inwards two holding parts 323,333.Thereby, the draw-in groove 12 of shield shell 3 by two buckling pieces 321,331 and insulating base frame 1 cooperate, slot 322,332 with the block 13 of insulating base frame 1 cooperate and holding parts 323,333 cooperates with the bottom of insulating base frame 1 and plugs securely and is fixed on the insulating base frame 1.The holding parts 323,333 of this shield shell 3 can also correspondence be welded on the pad of circuit board 20, to strengthen the adhesive force of connector 10 on circuit board 20.

This detection switch 4 comprises a detecting terminal 5 and an electric-conductor 6, and this electric-conductor 6 is fixed in the mounting groove 14 of insulating base frame 1.

This electric-conductor 6 comprises a weld part 61 and a contact site 62.Weld part 61 can corresponding be welded on the pad of circuit board 20, and contact site 62 can be depending on whether be inserted with SD card 30 in the electronic card coupler 10 and corresponding and detecting terminal 5 conductings or disconnection.

As shown in Figure 7, this detecting terminal 5 comprise a base portion 51, by an end of base portion 51 bend an extended contact site 52, by the other end of base portion 51 bend an extended weld part 53, one first holding parts 54 that stretches out backward by the middle section position of base portion 51 and by further extended second holding parts 55 of bending of weld part 53.The contact site 52 of this detecting terminal 5 can elastic movement, and the contact site 52 of this detecting terminal 5 can contact with this electric-conductor 6 under the promotion of SD card 30.

The bonding area of the weld part 53 of this detecting terminal 5 is more much bigger than the bonding area of the weld part 21 of single conducting terminal 2, thereby can firmly be welded on the circuit board 20.These weld part 53 middle parts are provided with a tiny through hole 531, and the side of weld part 53 is provided with a V-notch 532, can produce bigger capillary force thereby this V-notch 532 has a narrow tip.Thereby when weld part 53 is welded to the pad of circuit board 20, can attract the scolding tin of fusion upwards to flow by the capillarity of through hole 531 and V-notch 532, the area that increases welding is to increase the retain strength of 20 pairs of detectings of circuit board terminal 5, when the size of through hole 531 and V-notch 532 hour, the upper surface of the weld part 53 on the scolding tin of fusion even can climb through hole 531 and V-notch 532 all edges, solidify the back in solder cools and form the effect of grabbing, can increase the retain strength of 20 pairs of detectings of circuit board terminal 5, thereby further strengthen the adhesive force of connector 10 on circuit board 20.

This first holding parts 54, comprise from base portion 51 stage casings along the direct from front to back extended first fixing arm 541 of plug-in card direction, one pleurapophysis of the first fixing arm 541 is provided with hangnail 5411, so, when the first fixing arm 541 plugs in first fixing hole 15 of insulating base frame 1, can closely be embedded on the insulating base frame 1.

This second holding parts 55, comprise by weld part 53 bend an extended body 551 straight up away from a side of base portion 51 and by a side of body 551 along the extended from front to back second fixing arm 552 of plug-in card direction.The body 551 of this second holding parts 55 is parallel with base portion 51, and all vertical with weld part 53.One pleurapophysis of this second fixing arm 552 is provided with hangnail 5521, so, when the second fixing arm 552 plugs in second fixing hole 16 of insulating base frame 1, can closely be embedded on the insulating base frame 1 and (see also Fig. 4).

The electronic card coupler of the utility model embodiment, its assembling process roughly comprises:

A plurality of conducting terminals 2 are plugged in the corresponding end pilot trench 11 on the insulating base frame 1; Electric-conductor 6 is plugged in the corresponding mounting groove 14 on the insulating base frame 1; Detecting terminal 5 is plugged in first fixing hole 15 and second fixing hole 16 on the insulating base frame 1; Then, back to front shield shell 3 is pushed into insulating base frame 1, the buckling piece 321,331 on shield shell 3 and the draw-in groove 12 of insulating base frame 1 cooperate, slot 322,332 and the block 13 of insulating base frame 1 offsets and the bottom of holding parts 323,333 and insulating base frame 1 is combined together and can finishes assembling.

Extremely shown in Figure 10 as Fig. 8, be welded to the situation of circuit board 20 for electronic card coupler 10 correspondences of the utility model embodiment, wherein, circuit board 20 is provided with the 4th and the 5th pad 204,205 of the holding parts 323,333 of the 3rd pad 203 of second pad 202, corresponding electric-conductor 6 of first pad 201 of corresponding a plurality of conducting terminal 2, corresponding detecting terminal 5 and corresponding shield shell 3.When SD card 30 did not insert electronic card coupler 10 as yet, the contact site 52 of this detecting terminal 5 disconnected with the contact site 62 of this electric-conductor 6; And after SD card 30 inserts electronic card couplers 10, thereby the contact site 52 of this detecting terminal 5 will be under the promotion of SD card contacts with the contact site 62 of this electric-conductor 6 and electrically conducts.Thereby whether the interlock circuit (scheme not shown) that links together with the detecting terminal 5 and the electric-conductor 6 of this detection switch 4 can be plugged in the electronic card coupler 10 and detect SD card 30 according to the closed or disconnection of detection switch 4.

The electronic card coupler 10 of the utility model embodiment can strengthen the adhesion between detecting terminal 5 and the insulating base frame 1 by setting up second holding parts 55 in detecting on the terminal 5, effectively to prevent to detect separating of terminal 5 and insulating base frame 1; Meanwhile by increasing the area of the weld part 53 of detecting terminal 5, can improve the adhesive force between detecting terminal 5 and the circuit board 20, and and then improve adhesive force between electronic card coupler 10 and the circuit board 20, thereby prevent that effectively electronic card coupler 10 from coming off from circuit board 20.

Foregoing is preferred embodiment of the present utility model only, is not to be used to limit embodiment of the present utility model, so protection range of the present utility model should be as the criterion with the desired protection range of claims.

Claims

1. electronic card coupler, it comprises an insulating base frame and is plugged in a plurality of conducting terminals, a shield shell and a detection switch on this insulating base frame; Each conducting terminal comprises an a docking part and a weld part; This detection switch comprises a detecting terminal and an electric-conductor, this detecting terminal comprises a base portion, bend an extended contact site by this base portion one end, one first holding parts that bends an extended weld part and stretch out by this base portion other end by this base portion middle section position, this first holding parts is planted and is fixed on this insulating base frame, it is characterized in that, this detecting terminal also comprises by extended one second holding parts of the further bending of this weld part, this second holding parts is also planted and is fixed on this insulating base frame, and the bonding area of the weld part of this detecting terminal is bigger than the bonding area of the weld part of single conducting terminal.

2. electronic card coupler according to claim 1, it is characterized in that: this first holding parts comprises from this base portion stage casing along the extended one first fixing arm of plug-in card direction, this insulating base frame is provided with one first fixing hole corresponding with this first fixing arm, and this first fixing arm is that correspondence is plugged in this first fixing hole.

3. electronic card coupler according to claim 2, it is characterized in that: second holding parts of this detecting terminal comprise by weld part vertically the extended body of bending and by a side of this body along the extended one second fixing arm of plug-in card direction, this insulating base frame is provided with one second fixing hole corresponding with this second fixing arm, and this second fixing arm is that correspondence is plugged in this second fixing hole.

4. electronic card coupler according to claim 3, it is characterized in that: the body of second holding parts of this detecting terminal is that the side away from this base portion by this weld part bends extended straight up, the body of this second holding parts is parallel with base portion, and all vertical with this weld part.

5. electronic card coupler according to claim 3 is characterized in that: described first, second fixing arm of this detecting terminal all is provided with hangnail at its at least one pleurapophysis.

6. according to each described electronic card coupler of claim 1 to 5, it is characterized in that: the weld part middle part of this detecting terminal is provided with at least one through hole.

7. electronic card coupler according to claim 6 is characterized in that: the side of this weld part is provided with at least one breach.

8. electronic card coupler according to claim 7 is characterized in that: the breach of this weld part is a V-arrangement.

9. according to each described electronic card coupler of claim 1 to 5, it is characterized in that: the side of this weld part is provided with at least one V-notch.

10. according to each described electronic card coupler of claim 1 to 5, it is characterized in that: the contact site of this detecting terminal can elastic movement, and the contact site of this detecting terminal can contact with this electric-conductor under the promotion of electronic cards.