Electrical connector

Abstract

An electrical connector, comprising an insulating body and a plurality of terminals arranged on the insulating body, the insulating body being provided with terminal holes penetrating the upper and lower surfaces thereof and a fixing slit located on an inner side wall of the terminal hole and connected to the terminal hole, the terminal comprising a main body portion received and fixed in the fixing slit, a first elastic arm extending upward, and a first contact portion located at the end of the first elastic arm, the terminal comprising an extension portion extending from the main body portion, the extension portion being accommodated in the terminal hole. With such a configuration, the impedance matching of the electrical connector terminal is optimized through the extension portion.

Description

[Technical field]

[0001] The invention relates to an electric connector, in particular to an electric connector capable of docking with a circuit board and a chip module. [Background technology]

[0002] US invention patent No. US7878818B2 discloses an electrical connector, which includes an insulating body and a conductive terminal received in the insulating body. Each conductive terminal has a main body fixed in the insulating body, and two elastic arms extending from the top edge and the bottom edge of the main body. However, this connector cannot be adjusted according to actual needs in terms of impedance matching.

[0003] Therefore, it is necessary to provide an improved electrical connector to solve the above problems. [Summary of the invention]

[0004] The main purpose of the present invention is to provide an electrical connector, the terminal impedance matching of which is adjustable.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] An electrical connector comprises an insulating body and a plurality of terminals arranged on the insulating body, the insulating body being provided with terminal holes penetrating the upper and lower surfaces thereof and a fixing slit located on an inner side wall of the terminal hole and connected to the terminal hole, the terminal comprising a main body portion accommodated and fixed in the fixing slit, a first elastic arm extending upward, and a first contact portion located at the end of the first elastic arm, the terminal comprising an extension portion extending from the main body portion, the extension portion being accommodated in the terminal hole.

[0007] Compared with the prior art, the present invention has an extension portion accommodated in the terminal hole. According to the needs of the actual electrical connector, the position and size of the extension portion can be adjusted to achieve impedance matching optimization of the terminal.

Brief Description of the Drawings

[0008] Figure 1 It is a three-dimensional diagram of the electrical connector of the present invention.

[0009] Figure 2 yes Figure 1 A stereogram from another angle is shown.

[0010] Figure 3 yes Figure 1 Exploded view of the electrical connector shown.

[0011] Figure 4 yes Figure 3 An exploded view from another angle is shown.

[0012] Figure 5 yes Figure 3A perspective view of the terminals shown.

[0013] Figure 6 yes Figure 5 Front view of the terminals shown.

[0014] Figure 7 yes Figure 1 A cross-sectional view along dotted line AA is shown.

[0015] Figure 8 yes Figure 1 A cross-sectional view along dotted line BB is shown.

[0016] Fig. 9 yes Figure 1 Top view shown.

[0017] Fig.10 yes Figure 1 A cross-sectional view along the dotted line CC is shown. [Specific implementation method]

[0018] See also Figures 1 to 10 As shown, the present invention discloses an electrical connector 100, which includes an insulating body 1 and a plurality of terminals 2 arranged on the insulating body 1. The insulating body 1 is provided with a terminal hole 11 penetrating the upper and lower surfaces thereof and a fixing slit 12 located on an inner side wall of the terminal hole 11 and connected to the terminal hole. The fixing slit 12 is formed by penetrating downward from the insulating body 1. A plurality of bosses 13 are provided on the upper and lower surfaces of the insulating body 1. The setting of the bosses 13 can prevent the terminal 2 from being excessively bent, and can also ensure that the terminal 2 of the electrical connector can still be exposed to contact with the air medium in the mating state. The terminal 2 includes a main body 21 accommodated and fixed in the fixing slit 12, a first elastic arm 22 extending upward, and a first contact portion 23 located at the end of the first elastic arm 22. The terminal 2 includes an extension portion 24 extending from the main body 21, and the extension portion 24 is accommodated in the terminal hole 11. The extension portion 24 can adjust its position and size on the terminal 2 according to actual needs so that the electrical connector can obtain targeted impedance matching optimization.

[0019] In this embodiment, the extension portion 24 is a pair of vertical sheet structures perpendicular to the main body 21, bent at both sides of the main body 21, and does not exceed the upper and lower surfaces of the insulating body 1 in the vertical direction. Fig. 9 The extension portion 24 includes a connecting portion 241 and a vertical portion 242 that are perpendicular to each other. The connecting portion 241 is formed by extending from the side of the main body 21 in a direction perpendicular to the main body 21. The vertical portion 242 is formed by extending from the connecting portion 241 in a vertical direction. Figure 5 The extension portion 24 is suspended in the terminal hole 11 without contacting any inner wall surface of the terminal hole 11 .

[0020] Ginseng Figures 5 to 7The main body 21 includes a base 210 and a pair of upper fixing portions 211, and the first elastic arm 22 includes a first upper connecting portion 220 vertically extending upward from the base 210 and a second upper connecting portion 221 obliquely extending from the first upper connecting portion 220. The pair of upper fixing portions 211 extend upward from the base 210 and are located beside the first upper connecting portion 220, and the pair of upper fixing portions 211 are fixed in the fixing slit 12. The first upper connecting portion 220 is located in the fixing slit 12 and faces the terminal hole 11, and the second upper connecting portion 221 extends out of the upper surface of the insulating body 1.

[0021] The terminal 2 further includes a second elastic arm 25 extending downward and a second contact portion 26 located at the end of the second elastic arm 25. The second elastic arm 25 includes a first lower connection portion 250 extending vertically downward from the base 210 and a second lower connection portion 251 extending obliquely from the first lower connection portion 250. A pair of lower fixing portions 212 extend downward from the base 210 and are located beside the first lower connection portion 250. The pair of lower fixing portions 212 are fixed in the fixing slit 12, the first lower connection portion 250 is located in the fixing slit 12 and faces the terminal hole 11, and the second lower connection portion 251 extends out of the lower surface of the insulating body 1. The first lower connection portion 250 extends downward out of the terminal hole 11, while the first upper connection portion 220 does not extend upward out of the terminal hole 11. The lateral width of the first lower connection portion 250 is smaller than the lateral width of the second lower connection portion 251, and the lateral width of the first upper connection portion 220 is smaller than the lateral width of the second upper connection portion 221, thereby reducing the distance between two adjacent first upper connection portions 220. In this embodiment, the interval between the first upper connecting portions 220 of the two adjacent terminals 2 is preferably 0.42 mm. The first and second elastic arms 22 and 25 of the terminal 2 are both provided with openings 27 .

[0022] The insulating body 1 is provided with a downward-facing blocking surface 121 at the fixing seam 12, and a pair of upper fixing portions 211 of the terminal 2 are upwardly blocked against the blocking surface 121. The extension portion 24 is bent and extended from the side of the main body 21 between the upper and lower fixing portions 211 and 212, and the height of the connecting portion 241 in the vertical direction is less than the interval between the roots of the upper and lower fixing arms 211 and 212, but the vertical height of the vertical portion 242 is greater than the interval between the above-mentioned roots. Figure 8 The top edge of the upper fixing portion 211 is spaced apart from the top edge of the terminal hole 11 due to the blocking surface 121 , while the bottom edge of the lower fixing portion 212 is substantially flush with the bottom edge of the terminal hole 11 .

[0023] Ginseng Fig. 9 , looking from top to bottom, the side of the extension portion 24 does not protrude beyond the side of the first and second contact portions 23, 26. Fig.10The frame of the terminal hole 11 includes a straight portion 111 and an oblique portion 112. The extension portion 24 is parallel to the straight portion 111 and does not extend to the oblique portion 112. The ends of the first and second contact portions 23 and 26 extend to the oblique portion 112. The terminal hole 11 is also provided with a downwardly penetrating groove 113 on its side wall opposite to the fixing seam 12 to prevent the first contact portion 23 from colliding with the side wall of the terminal hole 11 during the installation from bottom to top, resulting in skewed installation. The groove 113 does not penetrate the insulating body 1 upward to prevent the wall thickness of the terminal hole 11 from being reduced and making it insufficient in strength. At the same time, the insulating body 1 can achieve its function by using a material with a relative dielectric constant of 4 to replace the extension portion 24.

[0024] The above are only preferred embodiments of the present invention, and should not be used to limit the scope of the present invention. That is, all simple equivalent changes and modifications made according to the claims and the contents of the present invention should still fall within the scope of the present invention.

Claims

1. An electrical connector, comprising an insulating body and a plurality of terminals arranged on the insulating body, the insulating body being provided with a terminal hole penetrating the upper and lower surfaces thereof and a fixing slit located on an inner side wall of the terminal hole and communicating with the terminal hole, the terminal being integrally formed and comprising a main body portion accommodated and fixed in the fixing slit, a first elastic arm extending upward, a second elastic arm extending downward, a first contact portion located at the end of the first elastic arm, and a second contact portion located at the end of the second elastic arm, characterized in that: The main body includes a base, a pair of upper fixing parts and a pair of lower fixing parts, the terminal includes an extension part extending from the base, the extension part is accommodated in the terminal hole, the extension part is formed by bending and extending from the two side edges of the base located between the upper and lower fixing parts, the extension part includes a connecting part and a vertical part perpendicular to each other, the connecting part is formed by extending from the side edge of the main body along a direction perpendicular to the main body, the vertical part is formed by extending from the connecting part in a vertical direction, the upper and lower fixing parts are cantilevered, and the vertical part partially overlaps with the upper fixing part and the lower fixing part in the up and down directions.

2. The electrical connector according to claim 1, wherein: The extension part is a pair of vertical sheet structures perpendicular to the main body part, which are bent at two sides of the main body part respectively and do not exceed the upper and lower surfaces of the insulating body in the up and down directions.

3. The electrical connector according to claim 1, wherein: The extension portion is suspended in the terminal hole without contacting any inner wall surface of the terminal hole.

4. The electrical connector according to claim 1, wherein: The first elastic arm includes a first upper connection portion extending vertically upward from the base and a second upper connection portion extending obliquely from the first upper connection portion, a pair of upper fixing portions extending upward from the base and located beside the first upper connection portion, a pair of upper fixing portions being fixed in the fixing seam, the first upper connection portion being located in the fixing seam and facing the terminal hole, and the second upper connection portion extending out of the upper surface of the insulating body.

5. The electrical connector according to claim 4, wherein: The second elastic arm includes a first lower connecting portion extending vertically downward from the base and a second lower connecting portion extending obliquely from the first lower connecting portion, a pair of lower fixing portions extending downward from the base and located beside the first lower connecting portion, a pair of the lower fixing portions being fixed in the fixing seam, the first lower connecting portion being located in the fixing seam and facing the terminal hole, and the second lower connecting portion extending out of the lower surface of the insulating body.

6. The electrical connector according to claim 5, wherein: The insulating body is provided with a blocking surface facing downward at the fixing seam, and a pair of upper fixing portions of the terminal are supported upward on the blocking surface.

7. The electrical connector according to claim 5, wherein: Looking from top to bottom, the side edges of the extension portion do not protrude beyond the side edges of the first and second contact portions.

8. The electrical connector according to claim 5, wherein: Looking from top to bottom, the frame of the terminal hole includes a straight portion and an oblique portion, the extending portion is parallel to the straight portion and does not extend to the range of the oblique portion, and the ends of the first and second contact portions extend to the oblique portion.

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