TWI467866B - Electrical connector for eliminating electromagnetic interference and terminal assembly thereof - Google Patents

Description

Anti-electromagnetic interference electrical connector and terminal assembly thereof

The present invention relates to an electrical connector, and more particularly to an electrical connector for preventing electromagnetic interference and a terminal assembly thereof.

In the existing connector, for example, a DDR (Double Data Rate) connector, the terminal arrangement manner is that the signal terminal and the ground terminal are arranged in a staggered manner, and the signal terminal transmits current through the signal transmission. For transmission, when the current is transmitted through the signal terminal, a magnetic field is generated on the outside of the signal terminal, and since the connector structure is small, the number of terminals is small, and the spacing between the terminals is relatively small, so the signal is When a magnetic field is generated at a terminal, electromagnetic interference (ELECTROMAGNETIC INTERFERENCE, EMI) is likely to occur, which affects the transmission efficiency between the signal terminals. From this, we can see that the technical fields engaged in this related industry are eager to improve the subject.

When the signal terminal transmits signals, it is transmitted by high-frequency current switching. Therefore, when the high-frequency current passes through the signal terminals and switches quickly, a magnetic field is generated outside the signal terminals.

In the conventional connector structure, since the number of signal terminals having a small volume is large, the spacing between the terminals is relatively small. When a signal field generates a magnetic field, electromagnetic interference (EMI) is easily generated between adjacent signal terminals, causing transmission errors and affecting the transmission efficiency between the signal terminals.

In order to improve the electromagnetic interference between adjacent terminals, in the case of a DDR (Double Data Rate) connector, the terminal arrangement manner is such that the signal terminal and the ground terminal are arranged in a staggered manner, and the adjacent signal terminals are shielded through the ground terminal. Electromagnetic interference. However, the aforementioned grounding terminal can only shield electromagnetic interference to a limited extent, and if the arrangement between the terminals is more dense, the shielding effect of the grounding terminal becomes limited.

In view of this, the present invention proposes an electromagnetic interference preventing electrical connector and a terminal assembly for reducing electromagnetic interference between terminals.

In order to achieve the above object, the present invention provides an electromagnetic interference preventing electrical connector comprising an insulating housing, a plurality of first terminals and a plurality of second terminals.

The insulative housing contains a slot. Each of the first terminals is respectively disposed in the insulative housing, and each of the first terminals respectively includes a contact end located in the slot. Each of the second terminals is disposed in the insulative housing, and the second terminal and the first terminal are staggered. Each of the second terminals includes a body and a first extension. The body is located in the insulative housing, and the body includes a connecting end located in the slot. The first extension extends to the body and forms an angle with the body. The first extension increases the cross-sectional area of the second terminal to separate the first terminal adjacent to the second terminal.

The invention further provides a terminal assembly for bonding to an insulative housing to form an electrical connector for preventing electromagnetic interference. The terminal assembly includes a fixed seat, a plurality of first terminals, and a plurality of second terminals.

The first terminal is fixed to the fixing base, and each of the first terminals respectively includes a contact end. The second terminal is fixed to the fixing base, and the second terminal and the first terminal are staggered. Each of the second terminals includes a body and a first extension. The body is located in the insulative housing, and the first extension extends to the body and forms an angle with the body. The area is spaced apart from the first terminal adjacent to the second terminal.

The present invention increases the cross-sectional area of the second terminal through at least the first extension portion, effectively increases the effective shielding area of each of the second terminals, and improves electrical characteristics to isolate the first terminal adjacent to the second terminal. When the first terminal of the same second terminal is separated for data transmission, the second terminal can provide effective shielding to suppress Electromagnetic interference, the purpose of maintaining the quality of electronic signals.

Preferred embodiments of the present invention and their effects are described below in conjunction with the drawings.

Referring to FIG. 1 and FIG. 2, the electrical connector 100 for electromagnetic interference prevention according to the first embodiment of the present invention is electrically connected to an electrical connector (not shown). . The electromagnetic interference preventing electrical connector comprises an insulative housing 10, a plurality of first terminals 20 and a plurality of second terminals 30.

Referring to "1" and "2", the insulative housing 10 includes a slot 110 for interposing the electrical connector. In a specific embodiment of the DDR (Double Data Rate) memory module socket, the socket 110 is of a narrow shape, and the electrical connector is a flat type matching the slot 110 and is located in the memory module. The edge.

Referring to "1st drawing", "Fig. 2" and "3rd drawing", a plurality of first terminals 20 are provided in the insulating case 10. Each of the first terminals 20 includes a contact end 210 respectively located in the slot 110 of the insulative housing 10. Each of the first terminals 20 of the embodiment is for transmitting signals, in other words, a signal terminal.

The first terminal 20 further includes a first soldering end 220 for soldering to a circuit board, such as a computer motherboard, such that the electrical connector is fixed to the circuit board through the first soldering end 220 of the first terminal 20. And further electrically connected to the circuit board. As shown in FIG. 2, the plurality of first terminals 20 are coupled to the insulative housing 10 via the fixing base 40, but not limited thereto, the first terminal 20 itself can be combined by other means (such as interference and clamping). The same is attached to the insulating case 10, that is, the fixing base 40 is omitted, which will be described here.

Referring to "1st drawing", "Fig. 2" and "3rd drawing", a plurality of second terminals 30 are provided in the insulating case 10. The second terminal 30 and the first terminal 20 are staggered; in other words, a first terminal 20 is connected to a second terminal. 30 ways to stagger.

Each of the second terminals 30 includes a body 300 and a first extension 330. The body 300 is located in the insulative housing 10, and the body 300 includes a connecting end 310 located in the slot 110 of the insulative housing 10. The first extension portion 330 extends from the body 300 and forms an angle θ with the body 300. The first extension portion 330 is configured to increase the cross-sectional area of the second terminal 30 to partition the two first terminals 20 adjacent to the second terminal 30. Here, the first extension portion 330 is located on one side of the body 300 but not in contact with the adjacent first terminal 20. The number of the second terminals 30 and the first terminals 20 may be correspondingly arranged, or the number of the second terminals 30 may be more than, equal to, or less than the number of the first terminals 20, as described here.

The number of the first terminal 20 and the plurality of second terminals 30 may be such that the first terminal 20 or the second terminal 30 is located at the outermost side, which is not limited thereto. The first extension portion 330 may be interposed between the two first terminals 20 or at a side of one of the first terminals 20 . As shown in FIG. 2, the plurality of second terminals 30 are coupled to the insulative housing 10 via the fixing base 40, but not limited thereto, the plurality of second terminals 30 themselves may be combined by other means (such as interference, The fixing member 10 is bonded to the insulating housing 10, that is, the fixing base 40 is omitted, which will be described here.

As shown in FIG. 3 and FIG. 4, in the embodiment of the present embodiment, each of the second terminals 30 is a ground pin. The second terminal 30 further includes a second extension 340 extending from the body 300 and corresponding to the first extension 330. The second extension portion 340 is formed with the body 300 at another angle θ as shown in FIG. 4.

When the first extension portion 330 and the second extension portion 340 are formed, when the second terminal 30 is stamped and formed by a metal plate, the portions of the first extension portion 330 and the second extension portion 340 are reserved, and the sheet metal is utilized. The tool bends the first extension portion 330 and the second extension portion 340 at an angle, respectively, so that the first extension portion 330 and the second extension portion 340 are coupled to the body 300 and form an angle θ with the body 300 respectively. The first extension portion 330 and the second extension portion 340 are in the same direction (downward, upward) Or bend in the opposite direction (up and down).

Like the first terminal 20, the second terminal 30 further includes a second soldering end 320 for soldering to a circuit board, such as a computer motherboard, such that the electrical connector passes through the second soldering end 320 of the second terminal 30. It is fixed to the circuit board, and the second terminal 30 is connected to the grounding line of the circuit board, and the second terminal 30 is electrically grounded.

As shown in FIG. 3, the first extension 330 and the second extension 340 increase the cross-sectional area of the second terminal 30 as viewed from the side. Therefore, the first extension portion 330 and the second extension portion 340 increase the effective shielding area and improve the electrical characteristics, so that when the first terminal 20 performs data transmission, the shielding of the first extension portion 330 and the second extension portion 340 can be utilized. The electromagnetic interference of each of the first terminals 20 is suppressed, and the electronic signal quality is maintained.

As shown in FIG. 1 and FIG. 2, the electrical connector 100 of the present embodiment further includes a positioning member 80 disposed on the insulating housing 10 for fixing the electrical connector. When the electrical connector is inserted in the slot 110 to electrically connect the contact end 210 and the connecting end 310, the positioning member 80 can be locked to the electrical connector 90.

As shown in FIG. 5, a terminal assembly 200 according to a second embodiment of the present invention can be combined with an insulative housing 10 to form an electrical connector for preventing electromagnetic interference. The terminal assembly 200 includes a mounting base 40, a plurality of first terminals 20, and a plurality of second terminals 30.

As shown in FIG. 5, a plurality of first terminals 20 are fixed to the fixing base 40 of the fixing base 40, and each of the first terminals includes a contact end 20. The plurality of second terminals 30 are fixed to the fixing base 40, and the second terminal 30 and the first terminal 20 are staggered. Each of the second terminals 30 includes a body 300 and a first extension 330. The first extension portion 330 extends from the body 300 and forms an angle with the body 300. The first extension portion 330 increases the cross-sectional area of the second terminal 30 to partition the first terminal 20 adjacent to the second terminal 30.

In the embodiment of the present embodiment, the fixing base 40 combines the first terminals 20 and the second terminals 30 in an insert molding manner. More specifically, the first extension portion 330 can be positioned in the fixing base 40 by burying and molding.

As with the first embodiment, the second terminal 30 of the second embodiment also includes a second extension 340 extending from the body 300 and forming another angle with the body 300. The first extension 330 and the second extension 340 may be bent in the same or opposite directions. The second extension portion 340 can also be located in the fixing base 40 by burying and molding.

Please refer to FIG. 6 and FIG. 7 for the first terminal 20 and the second terminal 30 disclosed in the third embodiment of the present invention, and provide different terminal configurations for replacement applications. In the first or second embodiment. The configuration of the first terminal 20 and the second terminal 30 of the present embodiment is substantially the same as that disclosed in the first embodiment or the second embodiment; wherein the first terminal 20 includes a contact end 210 and A first soldering end 220 includes a body 300, a connecting end 310, a second soldering end 320, a first extending portion 330, and a second extending portion 340.

Please refer to FIG. 8 , FIG. 9 and FIG. 10 , which are an electromagnetic interference prevention electrical connector 100 and a terminal assembly 200 according to a fourth embodiment of the present invention. The first terminal 20 includes a contact end 210 and a first soldering end 220. The second terminal 30 includes a body 300, a connecting end 310, and a second end. The soldering end 320 and a first extending portion 330.

The main difference between the fourth embodiment and the first, second, and third embodiments is that the second terminal 30 omits the arrangement of the second extension portion 340. At the same time, the first extension portion 330 is located in the slot 110 of the insulative housing 10 instead of being embedded in the mount 40.

Referring to FIG. 11 and FIG. 12, the first terminal 20 and the second terminal 30 disclosed in the fifth embodiment of the present invention are different from the terminal configuration of the fourth embodiment. The first terminal 20 and the second terminal 30 of the embodiment are substantially the same as those disclosed in the fourth embodiment; wherein the first terminal 20 includes a contact end 210 and a first soldering end 220, the second The terminal 30 includes a body 300, a connecting end 310, a second soldering end 320, and a first extending portion 330.

Although the technical content of the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and any modifications and refinements made by those skilled in the art without departing from the spirit of the present invention are encompassed by the present invention. The scope of protection of the present invention is therefore defined by the scope of the appended claims.

100. . . Electrical connector

10‧‧‧Insulated housing

110‧‧‧ slots

200‧‧‧ terminal assembly

20‧‧‧First terminal

210‧‧‧Contact end

220‧‧‧First welded end

30‧‧‧second terminal

300‧‧‧ body

310‧‧‧Connected end

320‧‧‧Second welding end

330‧‧‧First Extension

340‧‧‧Second extension

40‧‧‧ Fixed seat

80‧‧‧ Positioning parts

Θ‧‧‧ angle

Figure 1 is a perspective view of a first embodiment of the present invention.

Fig. 2 is an exploded view of the first embodiment of the present invention.

Figure 3 is a perspective view of a terminal of the first embodiment of the present invention.

Figure 4 is a side view of the first embodiment of the present invention.

Figure 5 is a perspective view of a second embodiment of the present invention.

Figure 6 is a perspective view of a third embodiment of the present invention.

Figure 7 is a plan view of a third embodiment of the present invention.

Figure 8 is an exploded view of a fourth embodiment of the present invention.

Figure 9 is a side view of a fourth embodiment of the present invention.

Figure 10 is a perspective view of a terminal of a fourth embodiment of the present invention.

Figure 11 is a cross-sectional view showing a fifth embodiment of the present invention.

Figure 12 is a perspective view of a terminal of a fifth embodiment of the present invention.

100. . . Electrical connector

10. . . Insulating housing

110. . . Slot

200. . . Terminal assembly

20. . . First terminal

30. . . Second terminal

40. . . Fixed seat

80. . . Positioning member

Claims (14)

An electrical connector for preventing electromagnetic interference, comprising: an insulating housing, comprising a slot; a plurality of first terminals disposed in the insulating housing, and each of the first terminals respectively includes a contact end located in the slot And the second terminal is disposed in the insulative housing, and the second terminals are staggered with the first terminals; each of the second terminals includes a body and a first extension, the body Located in the insulative housing, the main body includes a connecting end, and the first extending portion extends from the main body and forms an angle with the main body, and the first extending portion is interposed therebetween Between two of the first terminals or at a side of one of the first terminals, the first extension portion increases a cross-sectional area of the second terminal to separate the first terminal adjacent to the second terminal And increase the effective shielding area. The anti-electromagnetic interference electrical connector of claim 1, wherein the second terminal further comprises a second extension extending from the body and forming another angle with the body. The electromagnetic interference preventing electrical connector of claim 2, wherein the first extension portion and the second extension portion are bent in the same or opposite directions. The electrical connector for preventing electromagnetic interference according to claim 3, further comprising a positioning member disposed on the insulating housing for fixing an electrical connector, wherein the electrical connector is inserted into the slot and electrically Connecting the contact ends and the connecting ends. The anti-electromagnetic interference electrical connector of claim 1, wherein the first terminal further comprises a first soldering end for soldering to a circuit board. The electromagnetic interference preventing electrical connector of claim 1, wherein the second terminal further comprises a second soldering end for soldering to a circuit board. The electromagnetic interference preventing electrical connector of claim 1, wherein the first extension is located in the slot of the insulative housing. A terminal assembly includes: a fixing base; a plurality of first terminals fixed to the fixing base, each of the first terminals respectively includes a contact end; and a plurality of second terminals fixed to the fixing base, the The second terminal and the first terminals are staggered, and each of the second terminals includes a body and a first extension, wherein the first extension extends to the body and forms an angle with the body, and the The first extension portion is located between two of the first terminals or at a side of one of the first terminals, and the first extension portion is spaced apart from the first terminal portion by the cross-sectional area of the second terminal The first terminal adjacent to the two terminals increases the effective shielding area. The terminal assembly of claim 8, wherein the fixing base combines the first terminals in an injection molding manner. The terminal assembly of claim 8, wherein the fixing base combines the second terminals in an injection molding manner. The terminal assembly of claim 8, wherein the first extension of the second terminal is located at the mount. The terminal assembly of claim 8, wherein the second terminal further comprises a second extension extending from the body and forming another angle with the body. The terminal assembly of claim 12, wherein the first extension and the second extension are bent in the same or opposite directions. The electromagnetic interference preventing electrical connector of claim 8, wherein the first extension is embedded in the fixing base.