Terminal and Receptacle Connectors

Abstract

SOLUTION: A terminal and a receptacle connector are provided. The terminal comprises a soldering segment, an upright arm and a bending arm. The soldering segment has first and second end portions located in facing two ends, respectively, and extending upward. The upright arm extends upward from the first end. The bending arm includes an abutting part extending upward from the second end, a lower bending part bending upward from the abutting part so as to be separated from the upright arm and extending obliquely, an elastic bending part extending from the lower bending part so as to be separated from the upright arm then bending back and extending obliquely upward close to the upright arm, an upper bending part bending and extending upward from the elastic bending part, and a contact part extending upward from the upper being part.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to terminal and receptacle connectors. [Background technology]

[0002] Patent Document 1 discloses a leaf spring type connection pin, which has a support pin extending vertically, a leaf spring spaced apart from the support pin by a predetermined distance, and a bridge connecting the support pin and the leaf spring. The support pin has a bent lip portion located at the upper end of the support pin, a first base portion located at the lower end of the support pin, and a locking protrusion protruding toward each of the two side surfaces close to the lip portion. The leaf spring has an upper probe portion extending in a direction perpendicular to the lip portion, a second base portion provided at the same height as the first base portion, a V-shaped portion provided between the upper probe portion and the second base portion, an upper bent portion connecting the upper end of the V-shaped portion to the lower end of the upper probe portion, and a lower bent portion connecting the lower end of the V-shaped portion to the upper end of the second base portion. The bridge is bent between the lower end of the first base part and the lower end of the second base part to connect the first base part and the second base part, and serves as a lower probe of the leaf spring type contact pin. The leaf spring type contact pin is engaged with the inside of the insulating housing by the locking protrusion, which serves to fix the position of the support pin.

[0003] When a leaf spring type connection pin is provided in an insulating housing, the position of the locking protrusion is higher than the positions of the first base portion and the second base portion and is close to the lip portion, so that the positioning of the leaf spring type connection pin is unstable and when the upper probe portion of the leaf spring is pressed down by the mated conductive pad, the upper probe portion is prone to shaking, which affects the stability of the electrical connection.

[0004] Furthermore, electrical connectors need to be low-profile and be able to meet the electrical requirements for high-speed transmission. Another issue that requires improvement is how to improve the signal integrity (abbreviated as SI) when signals are transmitted between the terminals and the electrical connector. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] International Publication No. 2019 / 245153 Summary of the Invention

[0006] Therefore, an object of the present disclosure is to provide a terminal that can solve the above-mentioned problems.

[0007] Thus, in some embodiments, the terminal of the present disclosure comprises a soldering portion, an upright arm, and a bent arm. The soldering portion has a first end and a second end, which are located at two opposite ends and extend upward. The upright arm extends upward from the first end. The bent arm has an abutment portion extending upward from the second end, a lower bent portion bending and extending at an angle upward from the abutment portion away from the upright arm, a resilient bent portion extending from the lower bent portion first away from the upright arm, then bending back and extending at an angle upward close to the upright arm, an upper bent portion bending and extending upward from the resilient bent portion, and a contact portion extending upward from the upper bent portion. A shoulder is formed on each of at least one of two side edges of each of the upright arm and at least one of the bent arms, the two side edges being connected to the soldering portion, and the shoulder protrudes relative to the corresponding side edge of the soldering portion.

[0008] In some embodiments, a shoulder is formed on each of two side edges of at least one of the upright arm and the bent arm, the two side edges being connected to the soldering portion, and the shoulder protrudes relative to the corresponding side edge of the soldering portion.

[0009] In some embodiments, a shoulder is formed on each of at least one of two side edges of each of the upright arm and the bent arm, the two side edges being connected to the soldering portion, and the shoulder protrudes relative to the corresponding side edge of the soldering portion.

[0010] In some embodiments, a shoulder is formed on each of two side edges of each of the upright and bent arms, the two side edges being connected to the soldering portion, and the shoulder protrudes relative to the corresponding side edges of the soldering portion.

[0011] In some embodiments, the contact portion is located above the upright arm, and when the contact portion is pressed and moves downward, the upper bent portion contacts the upright arm.

[0012] In some embodiments, the tips of the upright arms extend upwardly at an angle away from the bent arm to form a beveled end against which the upper bent portion presses when the upper bent portion is depressed.

[0013] In some embodiments, the width of the angled end is greater than the width of the upper bent portion.

[0014] In some embodiments, the soldering portion further comprises a soldering portion connecting the first end and the second end, the soldering portion having a solder surface facing downward and used for soldering with a tin ball.

[0015] Another object of the present disclosure is to provide a receptacle connector that can solve the above-mentioned problems.

[0016] Thus, in some embodiments, the receptacle connector of the present disclosure includes an insulating housing and a plurality of terminals. The insulating housing has a bottom surface, a top surface opposite the bottom surface, and a plurality of terminal grooves, each of which has a positioning groove portion penetrating the bottom surface and the top surface, and a receiving groove portion extending laterally from the positioning groove portion and penetrating the top surface. The wall surfaces defining the positioning groove portion include two first side wall surfaces facing each other and spaced apart from each other, a second side wall surface connecting one side of each of the two first side wall surfaces, and a third side wall surface connecting the two first side wall surfaces, facing the second side wall surface, and spaced apart from the second side wall surface. At least one of the two first side wall surfaces forms a step portion, which protrudes at a position where at least one of the two first side wall surfaces is close to the bottom surface, and the height of the third side wall surface is lower than the height of the second side wall surface, so that the positioning groove portion and the accommodation groove portion communicate with each other. The wall surfaces defining the accommodation groove portion include a bottom wall surface facing the upper surface and connected to the third side wall surface, and the bottom wall surface forms a protrusion at a position where the bottom wall surface is adjacent to the third side wall surface. A plurality of terminals are provided in the plurality of terminal grooves, respectively. Each terminal has a soldering portion adjacent the bottom surface and a bent arm, the bent arm having an abutment portion extending upward from one end of the soldering portion and adjacent to the third side wall surface, a lower bent portion bending and extending at an angle upward from the abutment portion toward the receiving groove portion and adjacent to the protrusion portion, a resilient bent portion extending from the lower bent portion away from the second side wall surface, then bending to the rear surface and extending at an angle upward adjacent to the second side wall surface, an upper bent portion bending and extending upward from the resilient bent portion, and a contact portion extending upward from the upper bent portion. A shoulder portion protruding toward a corresponding side edge of the soldering portion is formed on at least one side edge of the abutment portion connected to the soldering portion, and the shoulder portion is positioned by pressing against the corresponding step portion.

[0017] In some embodiments, each of the two first side wall surfaces forms a step portion, the step portion protruding at a position where each of the two first side wall surfaces is close to the bottom surface, and shoulder portions protruding toward the corresponding side edges of the soldering portion are formed on each of the two side edges of the abutment portion connected to the soldering portion, and the shoulder portions are positioned by being pressed against the corresponding step portions.

[0018] In some embodiments, each terminal further comprises an upstanding arm extending upwardly from the other end of the solder portion and adjacent the second sidewall surface.

[0019] In some embodiments, a shoulder that protrudes relative to a corresponding side edge of the soldering portion is formed on each of at least one of the two side edges of the upright arm connected to the soldering portion, and the shoulder of the upright arm is positioned in pressure contact with the corresponding step portion.

[0020] In some embodiments, each of the two first side wall surfaces forms a step portion, which protrudes from each of the two first side wall surfaces at a position close to the bottom surface, and a shoulder protruding toward the corresponding side edge of the soldering portion is formed on each of the two side edges of the upright arm connected to the soldering portion, and the shoulder of the upright arm is positioned in pressure contact with the corresponding step portion.

[0021] In some embodiments, an abutment portion of each terminal abuts against the third sidewall surface and an upstanding arm of each terminal abuts against the second sidewall surface, resulting in a preload force on each terminal.

[0022] In some embodiments, the tips of the upright arms extend upwardly at an angle away from the bent arm to form a beveled end against which the upper bent portion presses when the upper bent portion is depressed.

[0023] In some embodiments, the width of the angled end is greater than the width of the upper bent portion.

[0024] In some embodiments, the soldering portion has a solder surface facing downward and is used for soldering with tin balls.

[0025] In some embodiments, the receptacle connector of the present disclosure includes an insulating housing and a plurality of terminals. The insulating housing has a first terminal providing portion, a second terminal providing portion, and an isolation portion located between the first terminal providing portion and the second terminal providing portion, and the first terminal providing portion, the second terminal providing portion, and the isolation portion are distributed in a first direction. A plurality of terminals are provided distributed among the first terminal providing portion, the second terminal providing portion, and the isolation portion. The terminals provided in the first terminal providing portion and the terminals provided in the second terminal providing portion each include a plurality of terminal groups, and each terminal group is composed of four terminals arranged side by side along a second direction perpendicular to the first direction, and two terminals located in the center of the four terminals function as signal terminals, two terminals located on the outer sides of the four terminals function as first ground terminals, and the terminals provided in the isolation portion function as second ground terminals.

[0026] In some embodiments, the terminals provided on the first terminal providing portion and the terminals provided on the second terminal providing portion are each arranged as a plurality of terminal rows distributed in a first direction, the terminals in each terminal row are arranged along the second direction, and in each terminal row, the terminal groups are arranged spaced apart from each other along the second direction, the positions of the terminal groups in adjacent terminal rows are alternately arranged in the first direction, the second ground terminals provided in the isolation portion are divided into two rows, one row of the second ground terminals is adjacent to the first terminal providing portion and the other row of the second ground terminals is adjacent to the second terminal providing portion, the positions of the second ground terminals in the two rows are alternately arranged in the first direction, and each is spaced a fixed distance from the signal terminal of the terminal group in the vicinity of the corresponding second ground terminal.

[0027] In some embodiments, each terminal row further has one terminal that functions as a third ground terminal, and the third ground terminals of adjacent terminal rows are located at two end sides facing each other in the second direction, and each is spaced apart from the terminals of the same terminal row.

[0028] The present disclosure has at least the effect that when the terminal is provided in an insulating housing, the terminal has a good and stable positioning effect and has good signal integrity performance. [Brief description of the drawings]

[0029] Other features and advantages of the present disclosure will become apparent from the following detailed description of the embodiments with reference to the accompanying drawings.

[0030] [Figure 1] 1 is a perspective view of a first embodiment of a receptacle connector of the present disclosure; [Diagram 2] FIG. 2 is a perspective view of FIG. 1 seen from a different angle. [Diagram 3] FIG. 1 is a plan view of a first embodiment. [Figure 4] FIG. 1 is an exploded perspective view of a first embodiment. [Diagram 5] FIG. 2 is a plan view of the insulating housing of the first embodiment. [Figure 6] FIG. 6 is a partially enlarged view of FIG. [Figure 7] FIG. 2 is a perspective view of a terminal according to the first embodiment. [Figure 8] FIG. 4 is a perspective view of the terminal of the first embodiment as viewed from a different angle. [Figure 9] FIG. 9 is a partial cross-sectional view taken along line IX-IX in FIG. [Figure 10] FIG. 4 is a partial cross-sectional view taken along line XX in FIG. [Figure 11] FIG. 4 is a partial cross-sectional view taken along line XI-XI in FIG. [Figure 12] FIG. 2 is a partial perspective view of a second embodiment of a receptacle connector of the present disclosure. [Figure 13] FIG. 11 is a partial perspective exploded view of the second embodiment. [Figure 14] FIG. 14 is a perspective exploded view of FIG. 13 seen from a different angle. [Figure 15] FIG. 13 is a partial cross-sectional view taken along line XV-XV in FIG. [Explanation of symbols]

[0031] 100 Receptacle Connector 1 Insulating housing 11 Bottom 12 Top side 13 Terminal groove 131 Positioning groove 131a first side wall surface 131b second side wall surface 131c Third side wall 131d Step 132 Storage groove 132a Bottom wall 132b Protrusion 2 Terminal 21 Soldered parts 211 First end 212 Second End 213 Soldering section 213a Solder surface 22 Upright Arm 221 Sloped end 23 Bent Arm 231 Contact part 232 Lower bending part 233 Elastic bending part 234 Upper bend part 235 Contact part 24 Shoulder 3 tin ball A1 First terminal provider A2 Second terminal provider A3 Isolation section D1 First direction D2 Second direction G1 First ground terminal G2 Second ground terminal G3 Third ground terminal S signal terminal TG terminal group TR terminal row DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0032] Before describing the present disclosure in detail, it should be noted that in the following description, like elements are designated with the same reference numerals.

[0033] 1 to 4, a first embodiment of a receptacle connector 100 of the present disclosure includes an insulative housing 1 and a plurality of terminals 2 provided in the insulative housing 1. As shown in FIG.

[0034] As shown in FIG. 3, the insulating housing 1 has a first terminal providing portion A1, a second terminal providing portion A2, and an isolation portion A3 located between the first terminal providing portion A1 and the second terminal providing portion A2, and the first terminal providing portion A1, the second terminal providing portion A2, and the isolation portion A3 are distributed in a first direction D1.

[0035] The multiple terminals 2 are distributed among the first terminal providing section A1, the second terminal providing section A2, and the isolation section A3. The terminals 2 provided in the first terminal providing section A1 and the terminals 2 provided in the second terminal providing section A2 each include multiple terminal groups TG, and each terminal group TG is composed of four terminals 2 arranged side by side along a second direction D2 perpendicular to the first direction D1. Two terminals 2 located in the center of the four terminals 2 function as signal terminals S, and two terminals 2 located on the outer sides of the four terminals 2 function as first ground terminals G1. The terminals 2 provided in the isolation section A3 function as second ground terminals G2.

[0036] In this embodiment, the terminals 2 provided in the first terminal providing section A1 and the terminals 2 provided in the second terminal providing section A2 are each arranged as a plurality of terminal rows TR distributed in the first direction D1, the terminals 2 in each terminal row TR are arranged along the second direction D2, the terminal groups TG in each terminal row TR are arranged at a distance from each other along the second direction D2, and the positions of the terminal groups TG in adjacent terminal rows TR are alternately arranged in the first direction D1. Each terminal row TR further has one terminal 2 functioning as a third ground terminal G3, and the third ground terminals G3 of the adjacent terminal rows TR are located at two end sides facing the second direction D2, respectively, and are each arranged at a distance from the terminal groups TG of the same terminal row TR. In particular, each of the first terminal providing section A1 and the second terminal providing section A2 is provided with four terminal rows TR, and each terminal row TR has four terminal groups TG and one third ground terminal G3. The terminal groups TG of adjacent terminal rows TR are alternately arranged in the first direction D1, so that the signal terminals S of adjacent terminal rows TR are alternately arranged in the first direction D1, with the result that the signal terminals S of one adjacent terminal row TR are aligned in the first direction D1 in an empty space between the terminal groups TG of the other adjacent terminal row TR. The two first ground terminals G1 of the terminal group TG correspond to the two adjacent terminal groups TG of the adjacent terminal rows TR in the first direction D1, respectively, and are located between the adjacent signal terminals S and the first ground terminals G1 of the adjacent terminal rows TR. Based on the direction shown in Figure 3, the terminal groups TG of adjacent terminal rows TR are arranged alternately in the first direction D1, so that one of the adjacent terminal rows TR has the terminal group TG of the outermost terminal row TR protruding to either the left or right side relative to the other terminal row TR of the adjacent terminal rows TR, so that the signal terminal S and the first ground terminal G1 of the outermost terminal group TG protruding outward relative to the adjacent terminal row TR do not have a corresponding first ground terminal G1 of the adjacent terminal row TR between them.Therefore, the third ground terminal G3 of each terminal row TR is provided between the corresponding signal terminal S and the first ground terminal G1 of the adjacent terminal row TR that protrudes outward, and each terminal group TG can correspond to two ground terminals of the adjacent terminal row TR, thereby avoiding imbalance of the two signal terminals S of each terminal group TG.

[0037] In this embodiment, the terminal 2 provided in the first terminal providing portion A1 and the terminal 2 provided in the second terminal providing portion A2 are used for transmitting and receiving signals, respectively, and the first terminal providing portion A1 and the second terminal providing portion A2 are isolated from each other by the isolation portion A3, so that a better degree of isolation of near-end crosstalk can be obtained. The second ground terminal G2 provided in the isolation portion A3 is used to function as a crosstalk block. In particular, the second ground terminals G2 provided in the isolation portion A3 are divided into two rows, one row of the second ground terminals G2 is adjacent to the first terminal providing portion A1, and the other row of the second ground terminals G2 is adjacent to the second terminal providing portion A2, and the positions of the two rows of the second ground terminals G2 are alternately arranged in the first direction D1, and each is spaced a certain distance from the signal terminal S of the terminal group TG in the vicinity of the corresponding second ground terminal G2. Therefore, the second ground terminal G2 is separated from the corresponding signal terminal S, thereby avoiding affecting the signal integrity performance of the corresponding signal terminal S as originally designed.

[0038] 5, 6 and 9, the insulating housing 1 has a bottom surface 11, an upper surface 12 opposite to the bottom surface 11, and a plurality of terminal grooves 13. Each terminal groove 13 is used to accommodate one terminal 2, and has a positioning groove portion 131 penetrating the bottom surface 11 and the upper surface 12, and an accommodating groove portion 132 extending laterally from the positioning groove portion 131 and penetrating the upper surface 12. The wall surfaces defining the positioning groove portion 131 include two first side wall surfaces 131a facing each other and spaced apart from each other, a second side wall surface 131b connecting one side of each of the two first side wall surfaces 131a, and a third side wall surface 131c connecting the two first side wall surfaces 131a, facing the second side wall surface 131b, and spaced apart from the second side wall surface 131b. At least one of the two first side wall surfaces 131a forms a step portion 131d, and the step portion protrudes at a position where at least one of the two first side wall surfaces 131a is close to the bottom surface 11. In this embodiment, the two first side wall surfaces 131a each form a step portion 131d protruding at a position close to the bottom surface 11. The height of the third side wall surface 131c is lower than the height of the second side wall surface 131b, so that the positioning groove portion 131 and the accommodation groove portion 132 communicate with each other. The wall surface defining the accommodation groove portion 132 faces the upper surface 12 and includes a bottom wall surface 132a connected to the third side wall surface 131c, and the bottom wall surface 132a forms a protrusion portion 132b at a position where the bottom wall surface 132a is adjacent to the third side wall surface 131c. In this embodiment, the accommodating groove portions 132 of the four terminal grooves 13 used to accommodate the same terminal group TG (see FIG. 3) communicate with each other.

[0039] 7 to 9, each terminal 2 includes a soldering portion 21, an upright arm 22, and a bent arm 23. The soldering portion 21 has a soldering section 213, and a first end 211 and a second end 212 located at two opposing ends of the soldering section 213, respectively, and extending upward. The soldering section 213 has a solder surface 213a facing downward, and is used for soldering with a tin ball 3. The upright arm 22 extends upward from the first end 211. The bent arm 23 has an abutment portion 231 extending upward from the second end 212, a lower bent portion 232 bending and extending upward from the abutment portion 231 at an angle away from the upright arm 22, an elastic bent portion 233 first extending from the lower bent portion 232 away from the upright arm 22 and then bending backward and extending upward at an angle close to the upright arm 22, an upper bent portion 234 bending and extending upward from the elastic bent portion 233, and a contact portion 235 extending upward from the upper bent portion 234.

[0040] A shoulder 24 is formed on at least one of the two side edges of at least one of the upright arm 22 and the bent arm 23, the two side edges being connected to the soldering portion 21, and the shoulder 24 protruding relative to the corresponding side edge of the soldering portion 21; in this embodiment, the two side edges connected to the soldering portion 21 of each of the upright arm 22 and the bent arm 23 form a shoulder 24 protruding relative to the corresponding side edge of the soldering portion 21, and the shoulder 24 of the bent arm 23 is located at the location where the abutment portion 231 and the soldering portion 21 are connected. When the terminal 2 is placed in the corresponding terminal groove 13, the soldering portion 21 is adjacent to the bottom surface 11, the abutting portion 231 abuts against the third side wall surface 131c, and the upright arm 22 abuts against the second side wall surface 131b, so that a preload is applied to the terminal 2, and the two shoulders 24 of the upright arm 22 are pressed against the two step portions 131d, respectively (see FIG. 10), and the two shoulders 24 of the bent arm 23 are also pressed against the two step portions 131d, respectively (see FIG. 11), so that the terminal 2 is firmly positioned in the terminal groove 13. Furthermore, since the shoulders 24 are formed on the abutting portion 231, the width of the abutting portion 231 is increased and the impedance is reduced, thereby improving the signal integrity performance.

[0041] The contact portion 235 is located above the upright arm 22, and when the contact portion 235 is pressed down and moves downward, the upper bent portion 234 contacts the upright arm 22. In this embodiment, the tip of the upright arm 22 extends upward at an angle away from the bent arm 23, forming an angled end 221 that presses against the upper bent portion 234 when it is pressed down. The width of the angled end 221 is wider than the width of the upper bent portion 234, ensuring that the upper bent portion 234 actually contacts the angled end 221 to form an electrical connection.

[0042] When the contact portion 235 is pressed while the elastic bending portion 233 enters the accommodating groove portion 132 and the lower bending portion 232 is close to the protrusion 132b, the contact portion 235 also moves the elastic bending portion 233, and the protrusion 132b supports the lower bending portion 232, thereby preventing the elastic bending portion 233 from approaching or contacting the bottom wall surface 132a. Therefore, it is possible to prevent the movement speed of the elastic bending portion 233 from slowing down due to the elastic bending portion 233 approaching or contacting the insulating housing 1 (plastic).

[0043] 12 to 15, a second embodiment of a receptacle connector 100 of the present disclosure differs from the first embodiment in that, in the second embodiment, each terminal 2 does not have an upright arm 22, and the soldered portion 21 does not have a first end 211 connected to the upright arm 22; however, all other configurations are identical to those of the first embodiment and will not be described repeatedly here.

[0044] However, the above description relates only to the embodiments of the present disclosure and is not intended to limit the scope of the present disclosure; simple equivalent changes and modifications made in accordance with the claims and the contents of this specification still fall within the scope of the present disclosure.

Claims

1. an insulating housing having a first terminal providing portion, a second terminal providing portion, and an isolation portion located between the first terminal providing portion and the second terminal providing portion, the first terminal providing portion, the second terminal providing portion, and the isolation portion being distributed in a first direction; a plurality of terminals provided in a distributed manner in the first terminal providing portion, the second terminal providing portion, and the isolation portion; the terminal provided on the first terminal providing portion and the terminal provided on the second terminal providing portion each include a plurality of terminal groups, each terminal group being composed of four terminals arranged side by side along a second direction perpendicular to the first direction, two terminals located in the center of the four terminals function as signal terminals, and two terminals located on the outer sides of the four terminals function as first ground terminals; The terminal provided in the isolation section functions as a second ground terminal. Receptacle connector.

2. the terminals provided on the first terminal providing portion and the terminals provided on the second terminal providing portion are respectively arranged as a plurality of terminal rows distributed in the first direction, the terminals of each terminal row are arranged along the second direction, the terminal groups of each terminal row are arranged spaced apart from each other along the second direction, and the positions of the terminal groups of adjacent terminal rows are alternately arranged in the first direction, the second ground terminals provided in the isolation section are divided into two rows, one row of the second ground terminals is adjacent to the first terminal providing section and the other row of the second ground terminals is adjacent to the second terminal providing section, the positions of the second ground terminals in the two rows are alternately arranged in the first direction, and each is spaced a certain distance from the signal terminal of the terminal group; The receptacle connector according to claim 1 .

3. 3. The receptacle connector of claim 2, wherein each terminal row further has one terminal functioning as a third ground terminal, the third ground terminals of adjacent terminal rows are respectively located at two end sides opposing each other in the second direction, and each third ground terminal is disposed spaced apart from the terminal group of its respective terminal row.

4. an insulating housing having a first terminal alignment portion and a second terminal alignment portion distributed in a first direction, and an isolation portion located between the first terminal alignment portion and the second terminal alignment portion; a plurality of terminals provided in the first terminal alignment portion, the second terminal alignment portion, and the isolation portion; A plurality of terminal groups of the terminals are provided on the first terminal alignment portion and the second terminal alignment portion, each terminal group is composed of four terminals and is arranged side by side along a second direction perpendicular to the first direction, two terminals located in the center function as signal terminals, two terminals located on the outside function as first ground terminals, and a terminal provided on the isolation portion functions as a second ground terminal. Socket connector.

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