CN201263000Y

CN201263000Y - Terminal and connector for electronic card

Info

Publication number: CN201263000Y
Application number: CNU2008202080072U
Authority: CN
Inventors: 陈冠吾; 周芝福
Original assignee: Kunshan Jiahua Electronics Co Ltd; Bellwether Electronic Corp
Current assignee: Kunshan Jiahua Electronics Co Ltd; Bellwether Electronic Corp
Priority date: 2008-08-20
Filing date: 2008-08-20
Publication date: 2009-06-24
Anticipated expiration: 2018-08-20

Abstract

The utility model discloses a terminal of an electric card connector, which is formed by means of bending and comprises a fixing part, a bonding part bending and extending from one end of the fixing part, an elastic arm bending and extending from the other end of the fixing part and a contact part formed by means of bending the position close to the end on the elastic arm; the terminal is characterized in that the surface of the contact part used for contacting an electric card is provided with a scraping area. The terminal is formed by means of bending; apart from the advantage of convenient assembly, the scraping area is also provided with a conducting plate that can be used for scraping the electric card so as to remove the oxides, blocking layers or pollutants on the surface of the conducting plate and hindering conductivity, and increase the conductivity between the electric card and the terminal.

Description

Terminal and electronic card coupler

Technical field

The utility model relates to a kind of terminal of electronic card coupler, particularly relate to a kind of bending be shaped (formingtype) electronic card coupler terminal and have the electronic card coupler of described terminal.

Background technology

General electronic cards, for example each table is from generation to generation gone up and is reached portable computer memory modules (Memory Modules), network communication card module, multimedia video module and satellite positioning module (GPS Modules), central processing unit, compiling decoder etc., must be electrically connected with circuit board by at least one or most electric connectors.As shown in Figure 1, be example with the electric connector 9 that is used for second generation double data rate SDRAM module (DDR2) electronic cards, it comprises an insulation shell 91 and is located at

most terminals

92,93 of upper and lower both sides of the slot 911 of insulation shell 91.When being inserted in slot 911, the conducting strip on the electronic cards can contact with the contact site 921,931 of

terminal

92,93 when electronic cards (figure does not show), and is electrically connected with electronic cards formation.

As shown in Figure 2, the terminal 93 with downside among Fig. 1 is the example explanation.The generation type of general terminal 93 has two kinds, and a kind of is direct drawing (blanking type), and a kind of is bending shaping (forming type) again after the punching press.If terminal 93 is when making in direct drawing mode, be that each 93 of butt Cheng Xing not, and by terminal 93 lateral punchings, its cut surface is on terminal 93, lower surface, and make terminal 93 surfaces produce burr, so also there are burr (figure does not show) on its contact site 931 surfaces, when electronic cards is inserted electric connector 9, the conducting strip of electronic cards can contact and move to the location with contact site 931, in this contact and mobile process, the dirt or the impurity on conducting strip surface can be removed in the burr on contact site 931 surfaces (wiping) conducting strip surface of can swiping, to increase conductivity.Yet the shortcoming of making terminal 93 with direct drawing is, because terminal 93 is indivedual shapings, when being assembled to insulation shell 91, needs to make assembling process very time-consuming one by one with terminal 93 set terminal pilot trench 912.

As shown in Figure 3,, most butt 93 are not disperseed at same strip 94 if when terminal 93 is made with the bending forming mode, during assembling in the lump set terminal pilot trench 912 save time and make things convenient for again with strip 94 excisions.When but terminal 93 is shaped, though bend again through punching press earlier, cut surface during its punching press is the side at terminal 93, so contact site 931 surfaces still are smooth surface, do not produce burr, so it does not have the scraping effect when contacting with the conducting strip of electronic cards, make that the conductivity of 93 of electronic cards and terminals is relatively poor.

The utility model content

A purpose of the present utility model is that a kind of terminal that assembling is saved time and have the electronic card coupler of scraping effect is being provided.

Another purpose of the present utility model is that a kind of electronic card coupler with aforementioned terminal is being provided.

The terminal of the utility model electronic card coupler, be to make with the bending forming mode, comprise that a fixed part, junction, the other end by this fixed part that is extended by the end bending of this fixed part bend the elastic arm that extends, and a contact site that is bent to form in this elastic arm adjacent end place; It is characterized in that: in order to contact the surface of an electronic cards, be provided with a scraping district at this contact site.

Being applicable to scraping of the present utility model district, can be the various out-of-flatness structures that form on this contact site surface, and can increase that this contact site contacts with the conducting strip of this electronic cards and when relatively moving, the scraping power (wiping force) on this conducting strip surface.Its concrete example division is as follows:

First concrete example, this scraping district comprises that one extends and protrudes the raised line on this contact site surface along this contact site length direction.

Second concrete example, this scraping district comprises two grooves that extend along this contact site length direction at intervals.

The 3rd concrete example, this scraping district comprises two half V-shaped grooves that extend along the dual-side of this contact site length direction respectively, and a V-shaped groove between this 2 half V-shaped groove.

The 4th concrete example, this scraping district comprises most transverse concave grooves of arranging along this contact site length direction at intervals.

The utility model electronic card coupler comprises an insulation shell and most foregoing terminal of being located at this insulation shell.

The beneficial effects of the utility model are: terminal of the present utility model is made with the bending forming mode, have outside the advantage of assembling convenience, the conducting strip that also has the electronic cards of to swipe by this scraping district simultaneously, hinder oxide, barrier layer or the pollutant of conductivity to remove the conducting strip surface, increase the effect of the conductivity between electronic cards and this terminal.

Description of drawings

Fig. 1 is a three-dimensional exploded view, and an existing electronic card coupler is described.

Fig. 2 is a stereogram, and the terminal of this existing electronic card coupler is described.

Fig. 3 is a stereogram, and the aspect of this existing electronic card coupler before the assembling terminal is described.

Fig. 4 is a three-dimensional exploded view, and first preferred embodiment of the utility model electronic card coupler is described.

Fig. 5 is a stereogram, and a terminal of this first preferred embodiment is described.

Fig. 6 is the vertical view of a Fig. 5, and a scraping district of this terminal is described.

Fig. 7 is a stereogram, and the aspect of this first preferred embodiment before the assembling terminal is described.

Fig. 8 is a stereogram, and a terminal of second preferred embodiment of the utility model electronic card coupler is described.

Fig. 9 is the vertical view of a Fig. 8, and a scraping district of this terminal is described.

Figure 10 is a stereogram, and a terminal of the 3rd preferred embodiment of the utility model electronic card coupler is described.

Figure 11 is the vertical view of a Figure 10, and a scraping district of this terminal is described.

Figure 12 is the end view of a Figure 10, and a scraping district of this terminal is described.

Figure 13 is a stereogram, and a terminal of the 4th preferred embodiment of the utility model electronic card coupler is described.

Figure 14 is the end view of a Figure 13, and a scraping district of this terminal is described.

Embodiment

Below in conjunction with drawings and Examples the utility model is elaborated:

Consult Fig. 4, Fig. 5 and Fig. 6, first preferred embodiment of the utility model electronic card coupler, present embodiment is that the electronic card coupler 1 with the electronic cards that is applicable to the DDR2 specification is the example explanation.Electronic card coupler 1 comprises an insulation shell 2 and most terminal 3,4.Insulation shell 2 has a slot 21, majority is located at the go up row terminal groove 22 of slot 21 upsides in order to the ccontaining row's of going up terminal 3, and most slot 21 downsides of being located at are in order to ccontaining following row's terminal groove 23 of row's terminal 4 down.

Last row's terminal 3 is high-order terminal (upper terminals), under arrange terminal 4 and be low level terminal (lower terminals), each

terminal

3,4 comprises that respectively a

fixed part

31,41,

junction

32,42, the other end by

fixed part

31,41 that is extended by the end bending of

fixed part

31,41 bend the

elastic arm

33,43 that extends, an and contact site 34,44 that is bent to form in

elastic arm

33,43 adjacent end places, in order to contact the electronic cards surface of (figure does not show), be provided with a

scraping district

35,45 at contact site 34,44.Fixed

part

31,41 is fixed in order to interfere with the internal face (scheming not label) of

terminal groove

22,23, and

junction

32,42 is electrically connected with circuit board formation in order to be welded in circuit board (figure does not show).The elastic arm 33 of last row's terminal 3 length of the elastic arm 43 of row's terminal 4 down is weak point, and bending mode difference, but all having elasticity presses on the positive force of electronic cards so that its contact site 34,44 to be provided.For convenience of description, Fig. 5 and Fig. 6 illustration is arranged the enlarged drawing of terminal 4 once, knowing performance scraping district 45, on arrange the scraping district 35 of terminal 3 also with down row's terminal 4 be identical, so not in addition with graphic explanation.In the present embodiment, scraping district 45 is the raised lines along extension of contact site 44 length directions and protrusion contact site 44 surfaces, can utilize impact style to be shaped, and make contact site 44 surfaces be irregular surface.When electronic cards when the plant direction is inserted the slot 21 of electronic card coupler 1, conducting strip on the electronic cards (figure do not show) is with after contact site 34,44 contacts, can relatively move up to arriving the location with contact site 34,44, this moment, scraping

district

35,45 and conducting strip surface produced friction, can hinder oxide, barrier layer or the pollutant of conductivity to strike off on the conducting strip surface, to increase the conductivity between conducting strip and the

terminal

3,4.

Consult Fig. 7, because terminal the 3, the 4th is made with the bending forming mode,

terminal

3,4 is before being assembled to insulation shell 2, can connect in a row by strip 5, and terminal in a

row

3,4 can be inserted together with its etc. corresponding

terminal groove

22,23, treat again strip to be excised after assembling is finished, can finish assembling apace, remove the puzzlement of assembling one by one from.

Consult Fig. 8 and Fig. 9, second preferred embodiment of the utility model electronic card coupler, roughly the same with aforementioned first preferred embodiment, still, the scraping district 45 ' of terminal 4 ' is two grooves 451 ' that extend along contact site 44 ' length direction at intervals.For convenience of description, same illustration of present embodiment arranged the enlarged drawing of terminal 4 ' once, and row's terminal (figure does not show) also can have identical scraping district on it.In the present embodiment, scraping district 45 ' makes contact site 44 ' surface be the out-of-flatness surface by this two groove 451 ', and can produce the scraping effect in the conducting strip surface of electronic cards (figure does not show).

Consult Figure 10, Figure 11 and Figure 12, the 3rd preferred embodiment of the utility model electronic card coupler, roughly the same with aforementioned first preferred embodiment, but, terminal 4 " scraping district 45 " comprise two respectively along contact site 44 " half V-shaped groove 451 that extends of the dual-side of length direction ", and one between this 2 half V-shaped groove 451 " between V-shaped groove 452 ".For convenience of description, same illustration of present embodiment arranged terminal 4 once " enlarged drawing, row's terminal (figure do not show) also can have identical scraping district on it.In the present embodiment, scraping district 45 " be by this 2 half V-shaped groove 451 " and V-shaped groove 452 " make contact site 44 " surface is the out-of-flatness surface, and can produce the scraping effect in the conducting strip surface of electronic cards (figure does not show).

Consult Figure 13 and Figure 14, the 4th preferred embodiment of the utility model electronic card coupler, roughly the same with aforementioned first preferred embodiment, still, the scraping district 65 of terminal 6 comprises most transverse concave grooves of arranging along contact site 64 length directions at intervals 651.For convenience of description, same illustration of present embodiment arranged the enlarged drawing of terminal 6 once, and row's terminal (figure does not show) also can have identical scraping district on it.In the present embodiment, scraping district 65 makes contact site 64 surfaces be the out-of-flatness surface by described transverse concave groove 651, and can produce the scraping effect in the conducting strip surface of electronic cards (figure does not show).

By previous embodiment as can be known, scraping

district

45,45 ', 45 ", 65 kenel can have multiple variation, do not exceed with previous embodiment.

In sum, the

terminal

3,4,4 ', 4 of the utility model electronic card coupler 1 ", 6 can utilize bending to be shaped Mode is made, and has the advantage of ease of assembly, and by

scraping district

35,45,45 ', 45 is set ", 65 can be in electricity The conducting strip of subcard surface produces scraping effect, to increase electronic cards and

terminal

3,4,4 ', 4 ", the conduction between 6 The property.

Claims

1. the terminal of an electronic card coupler, be to make with the bending forming mode, comprise that a fixed part, junction, the other end by this fixed part that is extended by the end bending of this fixed part bend the elastic arm that extends, and a contact site that is bent to form in this elastic arm adjacent end place; It is characterized in that: in order to contact the surface of an electronic cards, be provided with a scraping district at this contact site.

2. the terminal of electronic card coupler as claimed in claim 1 is characterized in that: this scraping district comprises that one extends and protrudes the raised line on this contact site surface along this contact site length direction.

3. the terminal of electronic card coupler as claimed in claim 1 is characterized in that: this scraping district comprises two grooves that extend along this contact site length direction at intervals.

4. the terminal of electronic card coupler as claimed in claim 1 is characterized in that: this scraping district comprises two half V-shaped grooves that extend along the dual-side of this contact site length direction respectively, and a V-shaped groove between this 2 half V-shaped groove.

5. the terminal of electronic card coupler as claimed in claim 1 is characterized in that: this scraping district comprises most transverse concave grooves of arranging along this contact site length direction at intervals.

6. an electronic card coupler comprises an insulation shell, and is located at majority such as each described terminal of claim 1 to 5 of this insulation shell.