CN201263000Y - Terminals and Electronic Card Connectors - Google Patents

Abstract

The utility model discloses a terminal of an electronic card connector, which is manufactured in a bending forming mode and comprises a fixed part, a guide connection part bent and extended from one end of the fixed part, an elastic arm bent and extended from the other end of the fixed part, and a contact part bent and formed at the position, close to the tail end, of the elastic arm; the method is characterized in that: the surface of the contact part for contacting the electronic card is provided with a scraping area. The terminal is made in a bending forming mode, has the advantage of convenient assembly, and the scraping area also has the function of scraping the conducting strip of the electronic card so as to remove oxides, barrier layers or pollutants on the surface of the conducting strip for hindering the conductivity and increase the conductivity between the electronic card and the terminal.

Description

Terminals and Electronic Card Connectors

technical field

The utility model relates to a terminal of an electronic card connector, in particular to a terminal of a forming type electronic card connector and the electronic card connector with the terminal.

Background technique

General electronic cards, such as various generations of desktop and portable computer memory modules (Memory Modules), network communication card modules, multimedia audio-visual modules and satellite positioning modules (GPS Modules), central processing units, compilers and decoders, etc., must It is electrically connected with the circuit board through at least one or more electrical connectors. As shown in Figure 1, taking the electrical connector 9 used for the second generation double data rate synchronous dynamic random access memory module (DDR2) electronic card as an example, it includes an insulating shell 91 and is located at the insulating shell 91 Most terminals 92, 93 on the upper and lower sides of the slot 911. When an electronic card (not shown) is inserted into the slot 911 , the conductive sheet on the electronic card contacts the contact portions 921 , 931 of the terminals 92 , 93 to form an electrical connection with the electronic card.

As shown in FIG. 2 , the terminal 93 on the lower side in FIG. 1 is taken as an example for description. Generally, there are two ways to form the terminal 93 , one is direct stamping (blanking type), and the other is stamping and then bending (forming type). If the terminal 93 is manufactured by direct stamping and forming, each terminal 93 is individually formed and stamped sideways by the terminal 93, and its cutting surface is on the upper and lower surfaces of the terminal 93, so that burrs are produced on the surface of the terminal 93, so its There are also burrs on the surface of the contact portion 931 (not shown). When the electronic card is inserted into the electrical connector 9, the conductive sheet of the electronic card will contact the contact portion 931 and move to the position. During the contact and movement process, the contact portion The burrs on the surface of 931 will scrape (wiping) the surface of the conductive sheet, which can remove dirt or impurities on the surface of the conductive sheet to increase conductivity. However, the disadvantage of making the terminals 93 by direct stamping is that, since the terminals 93 are individually formed, when assembling the terminals 93 into the terminal slots 912 one by one, the assembling process is time-consuming.

As shown in FIG. 3 , if the terminals 93 are manufactured by bending and forming, a plurality of terminals 93 can be placed on the same strip 94 without being dispersed, and they can be put into the terminal groove 912 and then the strip 94 can be cut off during assembly. Time saving and convenient. However, when the terminal 93 is formed, although it is stamped first and then bent, the cut surface during stamping is on the side of the terminal 93, so the surface of the contact portion 931 is still a smooth surface without burrs, so it is in contact with the conductive sheet of the electronic card There is no scratching effect, so that the electrical conductivity between the electronic card and the terminal 93 is relatively poor.

Utility model content

An object of the present invention is to provide a terminal of an electronic card connector which can save time for assembly and has a scratch effect.

Another object of the present invention is to provide an electronic card connector with the aforementioned terminals.

The terminal of the electronic card connector of the utility model is made by bending and forming. The elastic arm, and a contact portion formed by bending near the end of the elastic arm; is characterized in that: a scraping area is provided on the surface of the contact portion for contacting an electronic card.

The scraping area suitable for the utility model can be various uneven structures formed on the surface of the contact part, which can increase the friction on the surface of the conductive sheet when the contact part contacts and moves relatively with the conductive sheet of the electronic card. Wiping force. The specific examples are as follows:

In a first specific example, the scraping area includes a ridge extending along the length direction of the contact portion and protruding from the surface of the contact portion.

In a second specific example, the scraping area includes two grooves extending along the length direction of the contact portion at intervals.

In a third specific example, the scraping area includes two half-V-shaped grooves respectively extending along two sides of the contact portion in the length direction, and a V-shaped groove between the two half-V-shaped grooves.

In a fourth specific example, the scraping area includes a plurality of transverse grooves arranged at intervals along the length direction of the contact portion.

The electronic card connector of the utility model comprises an insulating shell and a plurality of terminals as mentioned above arranged on the insulating shell.

The beneficial effect of the utility model is that: the terminal of the utility model is made by bending and forming, which not only has the advantages of convenient assembly, but also has a conductive sheet that can scratch the electronic card through the scraping area to remove Oxides, barrier layers, or contaminants on the surface of the conductive sheet that impede conductivity have the effect of increasing the conductivity between the electronic card and the terminal.

Description of drawings

FIG. 1 is an exploded perspective view illustrating a conventional electronic card connector.

FIG. 2 is a perspective view illustrating terminals of the conventional electronic card connector.

FIG. 3 is a perspective view illustrating the state of the conventional electronic card connector before terminals are assembled.

FIG. 4 is an exploded perspective view illustrating the first preferred embodiment of the electronic card connector of the present invention.

Fig. 5 is a perspective view illustrating a terminal of the first preferred embodiment.

FIG. 6 is a top view of FIG. 5 illustrating a scratched area of the terminal.

FIG. 7 is a perspective view illustrating the appearance of the first preferred embodiment before the terminals are assembled.

FIG. 8 is a perspective view illustrating a terminal of the second preferred embodiment of the electronic card connector of the present invention.

FIG. 9 is a top view of FIG. 8 illustrating a scratched area of the terminal.

FIG. 10 is a perspective view illustrating a terminal of the third preferred embodiment of the electronic card connector of the present invention.

FIG. 11 is a top view of FIG. 10 illustrating a scratched area of the terminal.

Figure 12 is a side view of Figure 10 illustrating a scratched area of the terminal.

Fig. 13 is a perspective view illustrating a terminal of the fourth preferred embodiment of the electronic card connector of the present invention.

Figure 14 is a side view of Figure 13 illustrating a scratched area of the terminal.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail:

Referring to FIG. 4 , FIG. 5 and FIG. 6 , the first preferred embodiment of the electronic card connector of the present invention is illustrated by taking the electronic card connector 1 suitable for DDR2 electronic cards as an example. The electronic card connector 1 includes an insulating housing 2 and a plurality of terminals 3 , 4 . The insulating housing 2 has a slot 21, most of which are arranged on the upper side of the slot 21 to accommodate the upper row of terminal slots 22, and most of which are arranged on the lower side of the slot 21 to accommodate the lower row of terminals 4 The lower row of terminal slots 23.

The upper row of terminals 3 is upper terminals, and the lower row of terminals 4 is lower terminals. The guiding part 32, 42, an elastic arm 33, 43 bent and extended from the other end of the fixed part 31, 41, and a contact part 34, 44 formed by bending at the adjacent end of the elastic arm 33, 43, in The contact portion 34 , 44 is used to contact the surface of an electronic card (not shown in the figure), and is provided with a scraping area 35 , 45 . The fixing parts 31, 41 are used to interfere with the inner walls of the terminal grooves 22, 23 (not shown), and the conductive parts 32, 42 are used to be soldered to a circuit board (not shown) to form an electrical connection with the circuit board. The elastic arm 33 of the upper row of terminals 3 is shorter than the elastic arm 43 of the lower row of terminals 4 , and the bending methods are different, but both have elasticity to provide a positive force for the contact portions 34 , 44 to press against the electronic card. For convenience of description, Fig. 5 and Fig. 6 only illustrate the enlarged view of the lower row of terminals 4, so as to clearly show the scraping area 45, and the scraping area 35 of the upper row of terminals 3 is also the same as that of the lower row of terminals 4, so it is not described separately Schematic description. In this embodiment, the scraping area 45 is a convex strip extending along the length of the contact portion 44 and protruding from the surface of the contact portion 44 . It can be formed by stamping to make the surface of the contact portion 44 uneven. When the electronic card is inserted into the slot 21 of the electronic card connector 1 along the insertion direction, after the conductive sheet (not shown) on the electronic card contacts the contact portions 34, 44, it will move relative to the contact portions 34, 44 until reaching Positioning, at this time, the scraping area 35, 45 rubs against the surface of the conductive sheet, which can scrape off the oxide, barrier layer or pollutants on the surface of the conductive sheet that hinder the conductivity, so as to increase the conduction between the conductive sheet and the terminals 3, 4 sex.

Referring to Fig. 7, since the terminals 3 and 4 are made by bending and forming, the terminals 3 and 4 can be connected in rows by a strip 5 before being assembled into the insulating case 2, and the rows of terminals 3 and 4 can be placed together Insert the corresponding terminal grooves 22, 23, and then cut off the strip after the assembly is completed, so that the assembly can be completed quickly, eliminating the trouble of assembling one by one.

Referring to Fig. 8 and Fig. 9, the second preferred embodiment of the electronic card connector of the present invention is substantially the same as the aforementioned first preferred embodiment, however, the scraping area 45' of the terminal 4' is two phases apart along the The groove 451' extending in the length direction of the contact portion 44'. For convenience of description, this embodiment also only exemplifies the enlarged view of the lower row of terminals 4', and the upper row of terminals (not shown) may also have the same scraping area. In this embodiment, the scratching area 45' can produce a scratching effect on the surface of the conductive sheet of the electronic card (not shown) by means of the two grooves 451' to make the surface of the contact portion 44' an uneven surface.

Referring to Fig. 10, Fig. 11 and Fig. 12, the third preferred embodiment of the electronic card connector of the present invention is substantially the same as the aforementioned first preferred embodiment, however, the scraping area 45 "of the terminal 4" includes two parts respectively Half V-shaped grooves 451 ″ extending along both sides of the contact portion 44 ″ in the length direction, and a V-shaped groove 452 ″ between the two half V-shaped grooves 451 ″. For convenience of description, this embodiment also only exemplifies the enlarged view of the lower row of terminals 4", and the upper row of terminals (not shown) may also have the same scraping area. In this embodiment, the scraping area 45" is The two half V-shaped grooves 451 ″ and V-shaped grooves 452 ″ make the surface of the contact portion 44 ″ an uneven surface, which can produce a scratching effect on the surface of the conductive sheet of the electronic card (not shown).

Referring to Fig. 13 and Fig. 14, the fourth preferred embodiment of the electronic card connector of the present utility model is substantially the same as the aforementioned first preferred embodiment, but the scraping area 65 of the terminal 6 includes a plurality of spaced along the contact portion 64 transverse grooves 651 arranged in the longitudinal direction. For convenience of description, this embodiment also only exemplifies the enlarged view of the lower row of terminals 6 , and the upper row of terminals (not shown) may also have the same scraping area. In this embodiment, the scratching area 65 can produce a scratching effect on the surface of the conductive sheet of the electronic card (not shown) through the transverse groove 651 making the surface of the contact portion 64 an uneven surface.

It can be known from the foregoing embodiments that the types of the scraping areas 45, 45', 45", 65 can be changed in many ways, and are not limited to the foregoing embodiments.

In summary, the terminals 3, 4, 4', 4", 6 of the electronic card connector 1 of the present invention can be made by bending and forming, which has the advantage of convenient assembly, and by setting the scraping area 35, 45, 45', 45", 65 can produce a scratching effect on the surface of the conductive sheet of the electronic card to increase the conductivity between the electronic card and the terminals 3, 4, 4', 4", 6.

Claims (6)

1. A terminal of an electronic card connector is made by bending and forming, including a fixing part, a guiding part bent and extended from one end of the fixing part, and a bending part extended from the other end of the fixing part. An extended elastic arm, and a contact portion formed by bending near the end of the elastic arm; the feature is that a scraping area is provided on the surface of the contact portion for contacting an electronic card. 2. The terminal of an electronic card connector as claimed in claim 1, wherein the scraping area comprises a protruding strip extending along the length direction of the contact portion and protruding from the surface of the contact portion. 3. The terminal of an electronic card connector as claimed in claim 1, wherein the scraping area comprises two grooves extending along the length direction of the contact portion at intervals. 4. The terminal of the electronic card connector according to claim 1, wherein the scraping area comprises two half V-shaped grooves respectively extending along the two sides of the length direction of the contact portion, and a V-shaped groove between the two halves. V-groove between V-grooves. 5. The terminal of an electronic card connector as claimed in claim 1, wherein the scraping area comprises a plurality of transverse grooves arranged at intervals along the length direction of the contact portion. 6. An electronic card connector, comprising an insulating housing, and a plurality of terminals according to any one of claims 1 to 5 arranged on the insulating housing.

Images