CN201430259Y

CN201430259Y - Card edge connector

Info

Publication number: CN201430259Y
Application number: CN200920302597XU
Authority: CN
Inventors: 姚泽林
Original assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2009-04-27
Filing date: 2009-04-27
Publication date: 2010-03-24
Anticipated expiration: 2019-04-27

Abstract

A card edge connector comprises an insulator, a power terminal and a signal terminal, which are held on the insulator, wherein the insulator consists of two side walls which are opposite and a centerslot, the side walls are provided with a plurality of first holding grooves, the power terminal is composed of a first holding portion held in the first holding groove, a first contact portion which downwards bends from the upper end of the first holding portion and a first welding portion, and the first contact portion consist of a first connecting end and a first tail end. When an electronic card does not be inserted, a gap is formed between the first tail end and the first holding portion, when the electronic card is inserted, and the first tail end is pressed on the first holding portion.

Description

Bayonet connector

[technical field]

The relevant a kind of bayonet connector of the utility model relates in particular to a kind of bayonet connector with power supply terminal.

[background technology]

Bayonet connector extensively is arranged in the computer as a kind of transmission intermediary, in order to connect various electronic cards, with capacity that computer is provided or the operating rate that strengthens computer.Along with the ever-increasing while of computer transmission rate; the transmission speed of electric current is also in continuous increase; for making bayonet connector can bear bigger current delivery; usually can in bayonet connector, increase some power supply terminals in order to transmission current strengthening the transmission channel of electric current, this power supply terminal comprise the holding parts that vertically extends, from the bending downwards of holding parts upper end extend with the contact site that dock with electronic cards and from the extension of holding parts lower end to be soldered to the weld part on the circuit board.The end that this contact site comprises the link that links to each other with the upper end of holding parts and is positioned at the below, thus the end of contact site is resisted against this contact site excessive deformation in the time of can preventing the electronic cards insertion on the holding parts.Yet when electronic cards was not inserted, the end of contact site just had been resisted against on the holding parts and has also reduced the elastic deformation force of contact site simultaneously, thereby had increased the mating force of electronic cards insertion bayonet connector, made electronic cards insert inconvenience.

Therefore, at above-mentioned technical problem, be necessary to provide a kind of structure improved bayonet connector that has, to overcome above-mentioned defective.

[utility model content]

The purpose of this utility model is to provide a kind of bayonet connector that makes things convenient for electronic cards to insert.

For reaching above-mentioned purpose, the utility model adopts following technical scheme: a kind of bayonet connector, in order to the grafting electronic cards, it comprises the insulating body of lengthwise and is retained on power supply terminal and signal terminal on the insulating body, described insulating body comprises relative two side and extends to accommodate the central slot of electronic cards between the two side and along longitudinally, described sidewall is provided with first holding slot that some and central slot connects, described power supply terminal comprises first holding parts that is retained in first holding slot, bend downwards from the upper end of first holding parts and to extend and protrude in the central slot with elasticity first contact site that connects with electronic cards and can be soldered to first weld part on the circuit board, wherein, described first contact site comprises first link that links to each other with the upper end of first holding parts and first end relative with first link, when electronic cards is not inserted, described first end the inboard of first holding parts and and first holding parts between form first spacing, when electronic cards was inserted, described first end was to moving and be resisted against on first holding parts near the first holding parts direction.

Compared with prior art, the utlity model has following beneficial effect: when electronic cards is not inserted bayonet connector, owing to form first spacing between first end and first holding parts, fully guaranteed the strain of first contact site, thereby the insertion force in the time of can reducing electronic cards and insert central slot, make things convenient for the insertion of electronic cards, and when electronic cards is inserted bayonet connector, first end moves and is resisted against on first holding parts to the direction near first holding parts, thereby can prevent the excessive deformation of first contact site, simultaneously electronic cards more firmly is retained in the central slot.

The utility model is described in further detail below in conjunction with accompanying drawing and preferred embodiment.

[description of drawings]

Fig. 1 is the stereogram of the utility model bayonet connector.

Fig. 2 is the three-dimensional combination figure of the utility model bayonet connector and electronic cards.

Fig. 3 is the three-dimensional exploded view of the utility model bayonet connector.

Fig. 4 is the cutaway view along A-A line among Fig. 1.

Fig. 5 is the cutaway view along B-B line among Fig. 1.

Fig. 6 is the cutaway view along C-C line among Fig. 2.

Fig. 7 is the cutaway view along D-D line among Fig. 2.

[embodiment]

See also Fig. 1 to shown in Figure 3, bayonet connector 100 of the present utility model can be soldered on the circuit board (not shown), and in order to grafting electronic cards 200, it comprises the insulating body 1 of lengthwise, the device for fastening 4 that is retained on power supply terminal 2 and the signal terminal 3 on the insulating body 1 and is articulated in insulating body 1 lengthwise two ends.

See also Fig. 1 and shown in Figure 3, insulating body 1 comprises relative two side 12, extends with central slot 11 of accommodating electronic cards 200 and the turriform portion 13 that is positioned at insulating body 1 lengthwise two ends between two side 12 and along longitudinally.Sidewall 12 is provided with first holding slot 121 and second holding slot 122 that some and central slot 11 connects and runs through sidewall 12 upper and lower surfaces, and sidewall 12 is provided with the draw-in groove 123 that connects with first holding slot 121 in the outside of first holding slot 121.The pivot hole 132 that turriform portion 13 is provided with the accepting groove 131 that can accommodate device for fastening 4 and is positioned at accepting groove 131 both sides and connects with accepting groove 131.

See also Fig. 1, Fig. 3 and shown in Figure 4, power supply terminal 2 comprises sheet first holding parts 22 that is retained in first holding slot 121, bend downwards from first holding parts, 22 upper ends several elasticity that is provided with at interval first contact sites 21 of extension and extend from first holding parts, 22 lower ends several be provided with and can be soldered to first weld part 23 on the circuit board at interval.First holding parts 22 is provided with the card 225 that is held in the draw-in groove 123 and thereby first holding parts 22 can be fixed on the insulating body 1 better.First contact site 21 inwardly protrudes into central slot 11 connecting with electronic cards 200, and this first contact site 21 is arranged in a row along the direction that is parallel to sheet first holding parts 22.Each first contact site 21 comprises first link 211 that links to each other with first holding parts, 22 upper ends and first end 212 relative with first link 211, when electronic cards 200 is not inserted, this first end 212 the inboard of first holding parts 22 and and first holding parts 22 between form first space D 1, and first contact site 21 of each power supply terminal 2 interconnects by strip 213 at first terminal 212 places and is integral to prevent that first contact site 21 from deforming and touch mutually.The contact site 21 that a plurality of intervals are provided with is set on the power supply terminal 2, can carries out the branch flow transmission, strengthen the ability that power supply terminal 2 bears big current delivery electric current.By strip 213 first end 212 of a plurality of first contact sites 21 being connected is integral, and promptly is equivalent to a plurality of power supply terminals 2 are carried out parallel connection, and the resistance of power supply terminal 2 self makes efficiency of transmission be improved when reducing branch and being arranged.First weld part 23 extends to form from the bending of the lower end of first holding parts 22, thereby each power supply terminal 2 is provided with several first weld parts 23 that are provided with at interval power supply terminal 2 is fixed on the circuit board well.

See also Fig. 1, Fig. 3 and shown in Figure 5, signal terminal 3 comprises sheet second holding parts 32 that is retained in second holding slot 122, bend downwards from second holding parts, 32 upper ends and extend and protrude into central slot 11 in elasticity second contact site 31 that connects with electronic cards 200 and from the extension of second holding parts, 32 lower ends downward and can be soldered to second weld part 33 on the circuit board.Second contact site 31 comprises second link 311 that links to each other with second holding parts, 32 upper ends and second end 312 relative with second link 311, when electronic cards 200 is not inserted, this second end 312 the inboard of second holding parts 32 and and second holding parts 32 between form second space D 2 big than first space D 1.

See also Fig. 2 and shown in Figure 3, device for fastening 4 is housed in the accepting groove 131 at insulating body 1 lengthwise two ends, the both sides of device for fastening 4 are provided with the pivot 42 that is articulated on the pivot hole 132, thereby device for fastening 4 is rotated along the longitudinally of insulating body 1, the below of device for fastening 4 is provided with the top that electronic cards 200 is ejected central slot 11 and moves back portion 43, and the top of device for fastening 4 is provided with electronic cards 200 buttons are held in holding part 44 in the central slot 11 and the pulling part 45 that links to each other with device for fastening 4.

See also Fig. 1 to shown in Figure 7, before electronic cards 200 is inserted bayonet connector 100, owing to form first space D 1 between first terminal 212 and first holding parts 22 of power supply terminal 2 first contact sites 21, form second space D 2 between second terminal 312 and second holding parts 32 of signal terminal 3 second contact sites 31, fully guaranteed the strain of first contact site 21 and second contact site 31, thereby the insertion force when reducing electronic cards 200 and inserting central slot 11 makes things convenient for the insertion of electronic cards 200.When electronic cards 200 is inserted bayonet connector 100, first terminal 212 of power supply terminal 2 first contact sites 21 outwards move promptly to the direction near first holding parts 22 move and resilient abutment on first holding parts 22, thereby can prevent the excessive deformation of first contact site 21, simultaneously electronic cards 200 more firmly is retained in the central slot 11.In addition, when transmission current, first terminal 212 of first contact site 21 contacts with first holding parts 22 and also can form another loop, electric current is carried out the branch flow transmission, thereby reduced the resistance of power supply terminal self, improved efficiency of transmission, reduced the heat that power supply terminal 2 is produced in the current delivery process, therefore, power supply terminal 2 ability of bearing big current delivery further is enhanced.Simultaneously, second end 312 of second contact site 31 of signal terminal 3 also outwards moves promptly and moves to the direction near second holding parts 32, owing to have the second bigger space D 2 between second terminal 312 and second holding parts 32, after electronic cards 200 is inserted, second end 312 do not contact with second holding parts 32 yet and and second holding parts 32 between form three space D 3 little than second space D 2, promptly second terminal 312 contact yet with second holding parts 32 thereby do not form another loops, thereby can prevent signal terminal 3 generation interference when the transmission signals with second holding parts 32.

Claims

1. bayonet connector, in order to the grafting electronic cards, it comprises the insulating body of lengthwise and is retained on power supply terminal and signal terminal on the insulating body, described insulating body comprises relative two side and extends to accommodate the central slot of electronic cards between the two side and along longitudinally, described sidewall is provided with first holding slot that some and central slot connects, described power supply terminal comprises first holding parts that is retained in first holding slot, bend downwards from the upper end of first holding parts and to extend and protrude in the central slot with elasticity first contact site that connects with electronic cards and can be soldered to first weld part on the circuit board, it is characterized in that: described first contact site comprises first link that links to each other with the upper end of first holding parts and first end relative with first link, when electronic cards is not inserted, described first end the inboard of first holding parts and and first holding parts between form first spacing, when electronic cards was inserted, described first end was to moving and be resisted against on first holding parts near the first holding parts direction.

2. bayonet connector as claimed in claim 1, it is characterized in that: also be provided with second holding slot that some and central slot connects on the described sidewall, described signal terminal comprises second holding parts that is retained in second holding slot, bend downwards from the upper end of second holding parts and to extend and protrude in the central slot with elasticity second contact site that connects with electronic cards and can be soldered to second weld part on the circuit board, described second contact site comprises second link that links to each other with the upper end of second holding parts and second end relative with second link, when electronic cards is not inserted, described second end the inboard of second holding parts and and second holding parts between form second spacing.

3. bayonet connector as claimed in claim 2, it is characterized in that: described second spacing is greater than first spacing, after electronic cards was inserted, described second end was to moving near the second holding parts direction and still and between second holding parts forming than second closely spaced the 3rd spacing.

4. bayonet connector as claimed in claim 1 is characterized in that: described first holding parts is a laminated structure, first contact site of each power supply terminal for be provided with at interval several and be connected the upper end of same first holding parts.

5. bayonet connector as claimed in claim 4 is characterized in that: first contact site of described each power supply terminal is arranged in a row along the direction that is parallel to first holding parts.

6. bayonet connector as claimed in claim 4 is characterized in that: first end of described each power supply terminal first contact site interconnects and is integral.

7. bayonet connector as claimed in claim 1 is characterized in that: described sidewall is provided with the draw-in groove that connects with first holding slot in the outside of first holding slot, and described first holding parts is provided with the card in being held in the draw-in groove.

8. bayonet connector as claimed in claim 1 is characterized in that: described first weld part extends to form from the bending of the lower end of first holding parts.

9. bayonet connector as claimed in claim 1 is characterized in that: first weld part of described each power supply terminal for be provided with at interval several and be connected on same first holding parts.

10. bayonet connector as claimed in claim 1, it is characterized in that: described bayonet connector also comprises the device for fastening that is articulated in insulating body lengthwise two ends, and described device for fastening comprises the pulling part that the top that electronic cards is ejected central slot is moved back portion, the electronics buckle is held in the holding part in the central slot and links to each other with holding part.