TWM628008U - Electrical connector - Google Patents

Abstract

The present invention is an electrical connector, which includes a body with a plurality of terminal holes and a body accommodated in a corresponding A plurality of terminals in the terminal hole; the body has an upper surface and a lower surface, and the terminal hole penetrates the upper and lower surfaces. Each of the terminals includes a first terminal piece and a second terminal piece that are independent of each other. The first terminal piece includes a first fixing portion fixed on the body and a first elastic arm extending upward from the upper surface of the body. The first elastic arm has The wafer contact portion and the downwardly extending first overlapping portion. The second terminal piece includes a second fixing portion fixed on the body and a second overlapping portion extending upward. When the first elastic arm is urged to move downward, the first overlapping portion moves until the first overlapping portion contacts the second overlapping portion to form a conductive path. The creative terminal is composed of two independent terminal pieces, and can form two conductive paths, which can improve the high-frequency performance while ensuring the mechanical performance.

Description

electrical connector

The present invention relates to an electrical connector, which is used for the installation of chips such as a central processing unit (CPU).

With the vigorous development of concepts such as big data, cloud computing, and the Internet of Things, almost every new product is talking about high-speed transmission applications. Each application module is developing towards high speed to realize the high-speed transmission application mentioned above. Of course, the input/output interface used to connect each module also requires high-speed transmission. For example, the conventional USB Type C interface has reached 20Gbps. The Thunderbolt interface is up to 40Gbps. The central processing unit, which is the core part of computers, servers, etc., is developing towards higher speed and more soldering pins. The electrical connector used to connect the central processing unit and the motherboard cannot become the bottleneck of signal transmission. In the actual high-frequency test, the upper ends of the solder pins of the electrical connector elastically contact the conductive pads of the central processing unit, and the lower ends are soldered to the circuit board. The upper head is generally an inclined and elastic cantilever beam to provide flexible mechanical characteristics and ensure contact with the central processing unit. Due to the large number of terminals, the mechanical performance is highly required, and at the same time, it is necessary to reduce resonance and other adverse effects on high-frequency signals. Impact.

Therefore, it is necessary to provide an improved electrical connector to solve the above problems.

The purpose of this creation is to provide an electrical connector that can improve mechanical properties and high-frequency performance.

In order to achieve the above purpose, the present invention can adopt the following technical solutions: an electrical connector, which includes a body with a plurality of terminal holes and a plurality of terminals accommodated in the corresponding terminal holes; the body has an upper surface and a lower surface, so the The terminal holes penetrate through the upper and lower surfaces; each of the terminals includes a first terminal piece and a second terminal piece independent of each other, and the first terminal piece includes a first fixing portion fixed on the body and extending upward. A first elastic arm protruding from the upper surface of the main body, the first elastic arm has a chip contact part and a first overlapping part extending downward; the second terminal piece includes a second fixing part fixed on the main body and upward an extended second lap; the first elastic arm When being urged to move downward, the first overlapping portion is driven to move until the first overlapping portion contacts the second overlapping portion to form a conductive path.

Compared with the prior art, the present invention has the following effects: the terminal is composed of two independent terminal pieces, and two conductive paths can be formed, so as to improve the high-frequency performance while ensuring the mechanical performance.

100: Electrical connector

10: Ontology

101: Upper surface

102: Lower surface

11: Terminal hole

112: inner wall surface

12: Bumps

20: Terminal

50: Solder Ball

C: virtual quadrilateral structure

D, E: extension line

30: The first terminal piece

31: The first elastic arm

311: Wafer Contact

312: The first lap

3121: Arc Guide

32: The first fixed part

321: First vertical plate

322: Second vertical plate

33: The first welding part

40: Second terminal piece

41: Second elastic arm

411: Connector

412: Second lap

4121: Inclined surface

4122: Arc

42: Second fixed part

421: Third vertical plate

422: Fourth vertical plate

43: Second welding part

The first figure is a perspective view of the electrical connector of the present invention, in which the two terminals and solder balls are removed; the second figure is a perspective view of the removed two terminals and solder balls in the first figure; the third figure is the first figure. Figure 4 is a perspective view from another angle; Figure 4 is a perspective view from another angle shown in Figure 2; Figure 5 is a partial top view of the electrical connector of the present invention; Figure 6 is a schematic top view of the electrical connector; Figure 7 Figure 5 is a cross-sectional view taken along the dashed line VII-VII; and Figure 8 is similar to Figure 7, wherein the first terminal piece is pressed down to contact the second terminal piece.

In order to facilitate a better understanding of the purpose, structure, features, and effects of the present creation, the present creation will now be further described with reference to the accompanying drawings and specific embodiments.

Referring to the first to eighth figures, the present invention discloses an electrical connector 100 for connecting a chip (not shown) such as a central processing unit (CPU) to a circuit board (not shown). Referring to FIGS. 1 to 4 , the electrical connector 100 includes a body 10 having a plurality of terminal holes 11 and a plurality of terminals 20 accommodated in the terminal holes 11 , the body is formed by injection molding of insulating material, and the terminals 20 are made of metal The material is stamped and formed. The main body 10 has an upper surface 101 and a lower surface 102 , the terminal hole 11 penetrates through the upper and lower surfaces 101 and 102 , and the terminal hole 11 is provided with bumps 12 at its opposite corners.

Each of the terminals 20 includes a first terminal piece 30 and a second terminal piece 40 that are independent of each other. The first terminal piece 30 includes a first fixing portion 32 fixed on the main body 10 and a first terminal piece 32 extending upward from the upper surface 101 of the main body. An elastic arm 31 , the first elastic arm 31 has a chip contact portion 311 for contacting a chip and a first overlapping portion 312 extending downward, and a first welding portion 33 extends below the first fixing portion 32 . The second terminal piece 40 includes a second fixing portion 42 fixed on the main body 10 and a second elastic arm 41 extending upward. The two elastic arms 41 have a second overlapping portion 412 , and a second welding portion 43 extends below the second fixing portion 42 . The first and second soldering portions 33 and 43 extend in directions adjacent to each other, and are soldered to the same solder ball 50 . When the chip is installed in the electrical connector 100, when the first elastic arm 31 is urged to move downward, it drives the first overlapping portion 312 to move until the first overlapping portion 312 contacts the second overlapping portion 412 to form a conductive path , as shown in Figure 8, the terminal 20 generates two conductive paths, as indicated by the arrows, to form a parallel circuit, which is welded by the solder balls 50 to effectively improve the high-frequency performance.

The first elastic arm 31 extends obliquely upward from the first fixing portion 32 , the wafer contact portion 311 is located at the highest part of the first elastic arm 31 , and the first overlapping portion 312 is bent downward from the wafer contact portion 311 in the opposite direction and at its end It has an arc-shaped guide portion 3121, the second overlapping portion 422 has an outwardly inclined surface 4121, and the arc-shaped guide portion 3121 can slide along the inclined surface 4121. Referring to the seventh to the eighth figures, the first After the elastic arm 31 is pressed down, the arc-shaped guide portion 3121 is roughly lowered to the lowest position of the inclined surface 4121 , so that the conductive path can be shortened and the high-frequency performance can be improved. The end of the second overlapping portion 412 has an arc-shaped portion 4122 bent downward in the opposite direction. Under extreme conditions, the first elastic arm 31 moves downward to the second overlapping portion 412, and the arc-shaped portion 4122 avoids The first elastic arm 31 is scratched.

Referring to Figures 5 and 6, the first and second fixing portions 32 and 42 are fixed along the inner wall surface 112 of the terminal hole 11, looking down from the upper surface (as shown in Figure 5), or from the bottom Seen upwards from the surface (as shown in the sixth figure), the first and second fixing parts 32 and 42 are arranged diagonally and enclose a virtual quadrilateral structure C, as shown by the dotted line in the fifth figure. The first and second fixing parts 32 and 42 surround the inside of the main body 10 , which can improve the shielding effect of the ground terminal in the terminal 20 and reduce the crosstalk noise.

More specifically, the first fixing portion 32 includes a first vertical plate 321 and a second vertical plate 322 vertically bent from the side of the first vertical plate 321 , the first elastic arm 31 extends from the first vertical plate 321 , and the first welding The portion 33 is formed to vertically extend downward from the first vertical plate 321 . The second fixing portion 42 includes a third vertical plate 421 and a fourth vertical plate 422 vertically bent from the side of the third vertical plate 421 , the second elastic arm 41 extends from the third vertical plate 421 , and the second welding portion 43 extends from the third vertical plate 421 . The three vertical plates 421 are formed by vertically bending downward. The first and third vertical plates 321 and 421 are arranged facing each other, and the second and fourth vertical plates 322 and 422 are arranged facing each other. The first and second welding portions 33 and 43 extend toward each other and are in the same plane.

In the preferred embodiment, the extension line A of the inner surface 4211 of the third vertical plate 421 is viewed downward from the upper surface (as shown in the fifth figure), or viewed upward from the lower surface (as shown in the sixth figure). The second vertical plate 322 is orthogonal to each other, and the extension line of the inner surface 4221 of the fourth vertical plate 422 and the first vertical plate 321 are each other Orthogonal, so that the first and second fixing parts form a complete four-sided shielding effect inside the main body 10 , which can improve the shielding effect of the ground terminal in the terminal 20 and reduce crosstalk noise. The first to fourth vertical plates are along the inner wall surface 112 of the terminal hole 11 , and the side edges of the four vertical plates interfere with the inner wall surface 112 of the terminal hole 11 . The side edges of the surface are limited by the bumps 12 to further fix the fixing portion of the terminal piece. In a preferred embodiment, the side edges of the outer surfaces of the third and fourth vertical parts are also limited by the protrusions. The sixth figure only shows that the third vertical portion is shown by the bump 12 . In practice, the fourth vertical portion can also be restricted by the bump 12 . The second vertical plate 322 is flush with the upper surface 101 of the main body, and the fourth vertical plate is slightly lower than the upper surface of the main body.

To sum up, this creation complies with the requirements of a new type of patent, and a patent application is filed in accordance with the law. However, the above descriptions are only the preferred embodiments of the present creation, and the scope of the present creation is not limited to the aforementioned embodiments. Equivalent modifications or changes made by those who are familiar with the techniques of the present case in accordance with the spirit of the present creation are all applicable. Should be covered within the scope of the following patent applications.

100: Electrical connector

101: Upper surface

10: Ontology

11: Terminal hole

12: Bumps

20: Terminal

30: The first terminal piece

40: Second terminal piece

50: Solder Ball

Claims (10)

An electrical connector, comprising a body with a plurality of terminal holes and a plurality of terminals accommodated in the corresponding terminal holes; the body has an upper surface and a lower surface, and the terminal holes penetrate through the upper and lower surfaces; wherein: each the terminal comprises a first terminal piece and a second terminal piece which are independent of each other, the first terminal piece comprises a first fixing part fixed on the main body and a first elastic arm extending upward from the upper surface of the main body, The first elastic arm has a chip contact portion and a first overlapping portion extending downward; the second terminal piece includes a second fixing portion fixed on the body and a second overlapping portion extending upward; the first When the elastic arm is urged to move downward, the first overlapping portion is driven to move until the first overlapping portion contacts the second overlapping portion to form a conductive path. The electrical connector as claimed in claim 1, wherein the first elastic arm extends obliquely upward from the first fixing portion, the chip contact portion is located at the highest part of the first elastic arm, and the first overlapping portion The wafer contact portion is reversely bent downward and has an arc-shaped guide portion at the end thereof, the second overlapping portion has an outwardly inclined surface, and the arc-shaped guide portion can be along the inclined surface. slide. The electrical connector according to claim 1, wherein a first welding portion extends below the first fixing portion, a second welding portion extends below the second fixing portion, and the first and second welding portions are mutually extend toward each other. The electrical connector according to claim 1, wherein the first and second fixing parts are fixed along the inner wall surface of the terminal hole; when viewed from the upper surface, the first and second fixing parts are It is arranged diagonally and surrounded by a virtual quadrilateral structure. The electrical connector of claim 1, wherein the first fixing portion comprises a first vertical plate and a second vertical plate vertically bent from a side of the first vertical plate, and the first elastic arm extends from the first vertical plate. The straight plate extends; the second fixing part includes a third vertical plate and a fourth vertical plate vertically bent from the side of the third vertical plate, a second elastic arm extends from the upper end of the third vertical plate, and the second The overlapping portion is located on the second elastic arm; the first and third vertical plates are arranged facing each other, and the second and fourth vertical plates are arranged facing each other. The electrical connector of claim 5, wherein the extension line of the inner surface of the third vertical board and the second vertical board are orthogonal to each other, and the extension line of the inner surface of the fourth vertical board is orthogonal to the first vertical board orthogonal to each other. The electrical connector of claim 5, wherein the terminal hole is provided with bumps at opposite corners thereof, and the side edges of the outer surfaces of the first, second, and third vertical plates are limited by the bumps . The electrical connector of claim 5, wherein the second elastic arm comprises an extension portion extending horizontally from the third vertical plate, the extension portion can abut against the upper surface of the body, and the second overlapping portion The end of the extension part is formed by being bent and bent upward in the opposite direction. The electrical connector as claimed in claim 2, wherein the second overlapping portion is bent downwardly at its free end to form an arc-shaped portion. The electrical connector of claim 5, wherein the second vertical plate is flush with the upper surface of the body, and the fourth vertical plate is lower than the upper surface of the body.

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