CN201207470Y

CN201207470Y - Improvement of electronic card connector terminal

Info

Publication number: CN201207470Y
Application number: CNU2008200941664U
Authority: CN
Inventors: 王国荣; 童俐
Original assignee: Suyin Electronics Dongguan Co Ltd
Current assignee: Suyin Electronics Dongguan Co Ltd
Priority date: 2008-05-23
Filing date: 2008-05-23
Publication date: 2009-03-11
Anticipated expiration: 2018-05-23

Abstract

The utility model provides an electric card connector terminal improvement which comprises an insulating seat body and a plurality of conductive terminals. The a main body part of the conductive terminal is bent backwards to be extended to form an elastic arm part; the front end of the elastic arm is extended to generate a convex contact part; the edge of the front end of the contact part is bent to form a selecting part; the middle part of the main body part of the conductive terminal is slit to form a welding part; both sides of positioning parts formed by slitting the middle part of the main body part are respectively bent upwards to be extended and be provided with the arm parts; the arm part is provided with a preloading part which forms a compression joint on the selecting part, and so the contact part of the conductive terminal has a certain preload force without external force. In this way, a compression structure does not needed to be additionally arranged on an insulating body to maintain the preload force of the conductive terminal, the height of the insulating seat body is reduced, and so the height of the connector is further reduced; the conductive terminal is preloaded, has the preload force and is convenient for assembly, and the work efficiency of productions can be enhanced.

Description

The improvement of electronic card coupler terminal

Affiliated technical field

The relevant a kind of electronic card coupler terminal improvement of the utility model refers to that especially a kind of conducting terminal self has preload force to dwindle the terminal structure-improved of card connector height.

Background technology

Electronic card coupler is widely used on the electronic installations such as communication, walkman, digital camera to obtain bigger memory space.Seeing also shown in Figure 8ly, is an existing electronic card coupler 5 ', comprises conducting terminal 1 ', insulating base frame 2 '; Conducting terminal 1 ' is contained in the set receiving space 21 ' of insulating base frame 2 ', this card connector conducting terminal 1 ' comprises a weld part 13 ', elastic arm 17 ', kink 16 ', main body location division 12 ', and extends to form a vertical blocking part 11 ' in contact site 18 ' end.Because electronic product all develops towards compact direction in design now, the size of card connector is also as much as possible little in design.Know all that yet know those skilled in the art in order to help the Elastic Contact between conducting terminal and the card, the conducting terminal 1 ' that is assembled in insulating base frame 2 ' accepting groove interior 23 ' self need leave certain preload force.

Common way is to need to be provided with in addition pressure contact portion 22 ' on insulating base frame 2 ', is pressed on the set blocking part 11 ' of conducting terminal 1 ', so that terminal self is kept preload force.And as the method when conducting terminal 1 ' is assembled in the accepting groove 22 ' of insulating base frame 2 ', need the elastic arm 17 ' and the main body location division 12 ' of press terminal 1 ' in advance, make terminal self have certain preload force, be positioned then in the insulating base frame 2 ' receiving space 21 ', very inconvenience when assembling is difficult to also guarantee that the free height of terminal elastic contact part equates.

And other set pressure contact portion 22 ' itself has certain height on insulating base frame 2 ', the corresponding whole height that also increases insulating base frame 2 ', further miniaturization has caused technical barrier to electronic product, lightly design for catering to portable digital device body, the electronic card coupler matching design also needs to develop towards more small and exquisite direction.Therefore still have further improved necessity at above-mentioned electronic card coupler weak point.

Summary of the invention

The utility model main purpose is to solve the problem and the shortcoming of above-mentioned prior art, a kind of electronic card coupler terminal improvement is provided, set conducting terminal structure need not external force itself and has preload force, so that the height of this card connector further reduces, is convenient to assembling simultaneously.

For achieving the above object, the technical solution of the utility model is as follows:

A kind of electronic card coupler terminal improvement, include insulating base frame and complex conduction terminal, the complex conduction terminal is positioned in the set conduit of insulating base frame by the location division interference, be contained in the set receiving space of insulating base frame, conducting terminal itself has preload force makes the convex contact site float on plug surface.

Described conducting terminal has main part, bend backward by main part and to extend to form the elastic arm, the expansion of elastic arm end produces the convex contact site, be formed with the portion of choosing in the bending of contact site front edge, tear the formation weld part at conducting terminal main part middle part, by the main part middle part tear the location division, both sides that forms respectively upwards bending extend and be provided with arm, this arm is provided with the pre-splenium that is crimped in the portion of choosing, but this pre-splenium horizontally set also can vertically be provided with; Be crimped on choosing in the portion of contact site front end by pre-splenium,, make conducting terminal need not the external force effect and self produce certain preload force and make stable floating being exposed on the insulating base frame plug surface of termination contact portion to produce preload force.

Adopt the as above electronic card coupler conducting terminal of structure, need not on insulating base frame, to be provided with in addition the preload force that pressing structure is kept conducting terminal, by the pre-splenium of conducting terminal with choose portion's crimping and make terminal self have certain preload strength, to have reduced the insulating base frame whole height, reach the frivolous small-sized purpose of card connector.

Simultaneously at the electronic card coupler of this structure, in conducting terminal and the insulating base frame assembling process, reduced and pushed the step that main body location division and elastic arm produce preload force, made things convenient for assembling, improved packaging efficiency.

The complex conduction terminal group is loaded on insulating base frame, conducting terminal is chosen portion by pre-splenium crimping, when conducting terminal self produces preload force, also can guarantee the free height that the conducting terminal contact site is propped by elasticity, the conducting terminal contact site free height that is installed in insulating base frame is all equated, and be controlled effectively.

Description of drawings

Fig. 1 is the structural upright exploded view of electronic card coupler in the utility model;

Fig. 2 is a conducting terminal structural perspective in the utility model;

Fig. 3 is another visual angle stereogram of conducting terminal structure in the utility model;

Fig. 4 is a conducting terminal structure side planar view in the utility model;

Fig. 5 is another embodiment stereogram of conducting terminal in the utility model;

Fig. 6 is the utility model electronic card coupler cutaway view;

Cross-sectional schematic when plug-in card was worked when Fig. 7 was Fig. 6; And

Fig. 8 is existing known techniques electronic card coupler three-dimensional exploded view.

1-conducting terminal, 11-main part, 12-location division, 13-weld part, 14-arm, 15-pre-splenium, 16-kink, 17-elastic arm, 18-contact site, 19-choose portion, 20-empty portion, 21-receiving space, 22-breach, 23-location conduit, 3-circuit board, 4-electronic cards, 5-electronic card coupler.

Embodiment

Now cooperate graphic being described as follows:

Please refer to shown in Figure 1ly, the utility model electronic card coupler 5 comprises: complex conduction terminal 1 and insulating base frame 2; Insulating base frame 2 is provided with plural receiving space 21 in the both sides ordered pair, and in receiving space 21, be provided with the location conduit of planting for conducting terminal 1 23, complex conduction terminal 1 is interfered by location division 12 and is positioned in the set location conduit 23 of insulating base frame 2, conducting terminal 1 firmly is contained in the set receiving space 21 of insulating base frame 2, conducting terminal 1 itself has preload force makes convex contact site 18 float on plug surface, and weld part 13 can be stretched out by breach 22 places of insulating base frame 2 and be welded in circuit board.

Shown in Fig. 2,3,4, described conducting terminal 1 has a main part 11, bend extension backward by main part 11 and produce kink 16 and form elastic arm 17, elastic arm's 17 front ends expansion protuberance produces convex contact site 18, has been bent to form one downwards in contact site 18 front edges and has chosen portion 19; Tear the bending horizontal-extending at main part 11 middle parts and form weld part 13; Tear to extend upward respectively on the location division, both sides 12 that forms by main part 11 middle parts and be provided with arm 14, this arm 14 laterally is provided with pre-splenium 15, described pre-splenium 15 is crimped on conducting terminal 1 and chooses in the portion 19, conducting terminal 1 self forms prepressing structure, make conducting terminal 1 need not the external force effect and self produce certain preload force, guarantee the free height that the conducting terminal contact site is propped by elasticity, conducting terminal 1 contact site 18 free heights that are installed in insulating base frame are all equated, and be controlled effectively; Arm 14 constitutes a movable empty portion 20 with pre-splenium 19 simultaneously, so that contact site 18 is moved up and down as the time spent by external force.

As shown in Figure 5, it is the utility model conducting terminal 1 second example structure, the pre-splenium 15 ' that this conducting terminal 1 arm 14 is set, be set in arm 14 longitudinal directions, be crimped on equally in the portion of choosing 19, make conducting terminal 1 self produce precompression, so, also can arrive same characteristic of the present utility model and purpose.

Shown in Fig. 6,7, adopt electronic card coupler 5 conducting terminals 1 structure as above, this conducting terminal 1 is contained in the receiving space 21 of insulating base frame 2, preset crimping by the portion that chooses 19 that pre-splenium 15 and contact site 18 front edges are set, make conducting terminal 1 self have certain preload force, need not the preload force that pressing structure is kept conducting terminal 1 is set on insulating base frame 2 in addition, reduced the height of insulating base frame 2, thereby further reduce the height of electronic card coupler 5.

In this conducting terminal 1 structure and insulating base frame 2 assembling process, reduced main part 11 has been pushed the step that produces preload force with elastic arm 17 therewith, can directly assemble, made things convenient for assembling, improved packaging efficiency.

Complex conduction terminal 1 is installed in the receiving space 21 of insulating base frame 2, conducting terminal 1 is chosen portion 19 by pre-splenium 15 crimping, weld part 13 is welded in circuit board 3, when conducting terminal 1 self produces preload force, can guarantee the height that termination contact portion 18 is propped by elasticity, the conducting terminal contact site 18 that is installed in insulating base frame 2 is highly all equated, can guarantee the flatness at interface of pegging graft, and be controlled effectively; When electronic cards 4 prepackages, be inserted on this connector 5, can electrically contact simultaneously with plural terminals 1 contact site 18 along a plurality of directions insertions.

Practical case and accompanying drawing that the utility model is lifted, only for the utility model is illustrated, be to make and be familiar with purpose and the effect that this operator can understand the utility model strictly according to the facts, but the utility model there is not any restriction, the utility model also can still have other variation execution mode, so allly be familiar with this operator and carry out other pattern under this case utility model spirit and implement not breaking away from, the equivalence that all should be considered as this case claim is implemented.

Claims

1. electronic card coupler terminal improvement, comprise conducting terminal and insulating base frame, conducting terminal is contained in the set receiving space of insulating base frame, conducting terminal has a main part, the formation weld part is torn at the main part middle part, it is characterized in that: main part bends backward and extends to form the elastic arm, and the expansion of elastic arm's front end produces the convex contact site, is formed with the portion of choosing in the bending of contact site front edge; By main part middle part tear the location division, both sides that forms respectively upwards bending extend and be provided with arm, this arm is provided with the pre-splenium that is crimped in the portion of choosing, and makes the conducting terminal contact site need not external force and self have certain preload force.

2. electronic card coupler terminal improvement according to claim 1 is characterized in that: described pre-splenium is arranged at and is crimped in the portion of choosing horizontal connection of arm.

3. electronic card coupler terminal improvement according to claim 1 is characterized in that: described pre-splenium is arranged at and is crimped in the portion of choosing vertical connection of arm.

4. electronic card coupler terminal improvement according to claim 1 is characterized in that: conducting terminal both sides arm and the movable empty portion of the synthetic elastic arm of pre-splenium structure.