TWI722581B - Connector - Google Patents

Abstract

A connector includes an insulating base body and a plurality of terminals. The insulating base body includes a base extending laterally and a butting portion at the front end of the base. The base has a rear end surface facing the rear end, and a plurality of terminal fixing grooves formed from the rear end surface toward the front. Each terminal has a fixing portion, a contact portion extending forward from the fixing portion, and a tail portion extending rearward from the fixing portion. The fixing portions are respectively inserted into the terminal fixing grooves of the base, and the contact portions are located at the mating portion. , The terminal includes a plurality of grounding terminals and a plurality of signal terminals, at least two grounding terminals are integrally constructed to form a common grounding piece, and the two ends of the common grounding piece are respectively integrally connected to the rear ends of the fixing parts of the two grounding terminals. The extension path of the grounding member and the terminal is relatively staggered and crosses the signal terminal laterally.

Description

Connector

The present invention relates to a connector, in particular to a connector having multiple ground terminals and multiple signal terminals.

Chinese Invention Patent Publication No. CN103378497A (corresponding to US Invention Patent No. US9,276,342, hereinafter referred to as Prior Art 1) discloses a connector including a plurality of signal contactors and a plurality of grounding contactors, between the grounding contactors The multiple signal contactors are configured. At least two ground contactors are integrally connected by a connecting portion near the contact portion. The connecting portion is formed by drawing processing or bending processing so as to avoid the signal contactor.

Chinese Invention Patent Publication No. CN102820589B (corresponding to US Invention Patent No. US 8,992,262, hereinafter referred to as Prior Art 2) discloses a connector, each ground contact of which includes a linear contact part, a terminal part and a pier. The three grounding contacts are substantially in the center, and the podium is integrally connected by a substantially flat bus bar. A pair of signal contacts is provided between the two ground contacts, and a channel under the bus bar and accommodating the signal contacts is formed between the two ground contacts. The passages of the housing of the connector for accommodating the ground contacts are merged together by hollow connecting passages. The size of the hollow connection channel can be appropriately selected to accommodate and house the bus bar.

However, because the integral connecting part between the two grounding contactors in the prior art 1 needs to be recessed downward, the processing and bending (for example, stamping) part of the downward bending part will occupy the space between the two grounding terminals. Therefore, it is difficult to make the distance between the two ground terminals smaller. In addition, the bending of the connecting portion will affect the difficulty of forming the ground terminal, easily skew the ground terminal, or increase the difficulty of manufacturing and molding (control of size, coplanarity, position, etc.). However, the signal terminal in the prior art 2 needs to have an avoiding bent part to avoid the bus bar, so that the bent part of the signal terminal is not lined up with the ground terminal, which affects the signal integrity.

Moreover, regardless of the prior art 1 or the prior art 2, the connecting portion and the bus bar between the grounding terminals are connected to the side of the grounding terminal, so the grounding terminal must be set aside for connection, which will increase the length of the terminal. Or it is difficult to make the terminals shorter. In addition, both the prior art 1 and the prior art 2 need to open a horizontally long groove on the connector housing to accommodate the horizontal connection between the two grounding terminals and the bus bar, which will reduce the interference retention force of the terminals and reduce The strength of the shell.

Therefore, an object of the present invention is to provide a connector that can improve at least one of the disadvantages of the prior art.

Therefore, in some embodiments, the connector of the present invention includes an insulating base body and a plurality of terminals. The insulating base body includes a base extending laterally and a butting portion at the front end of the base. The base has a rear end surface facing the rear end, and a plurality of terminal fixing grooves formed forward from the rear end surface. Each terminal integrally has a fixing portion, a contact portion extending forward from the fixing portion, and a tail portion extending rearward from the rear end of the fixing portion. The fixing portions of the terminals are respectively inserted from the back to the front. The terminal fixing groove is provided in the base, and the contact portions of the terminals are located in the mating portion, wherein the terminals include a plurality of ground terminals and a plurality of signal terminals, and at least two ground terminals are formed integrally with each other. A common grounding member is formed. The two ends of the common grounding member are respectively integrally connected to the rear ends of the fixing portions of the two grounding terminals. The common grounding member is staggered from the extension paths of the terminals and crosses the two terminals horizontally. The signal terminal between the two grounding terminals.

In some embodiments, the common grounding member includes two bending portions extending integrally and bendingly from the rear ends of the fixing portions of the two grounding terminals respectively, and are integrally connected to the two bending portions and extending transversely. The ground crosses a cross portion of the signal terminal between the two ground terminals.

In some embodiments, the common grounding member is located behind the rear end surface of the base and outside the terminal fixing grooves.

In some embodiments, the terminals are side by side with each other.

In some implementations, the terminals are arranged side by side in two rows, the contact portions of the terminals are in the shape of a flat plate, and a plurality of the common grounding members are formed between the terminals, and the terminals located in the upper row The bending part of the common grounding piece integrally connected with the terminals is bent upward, and the bending part of the common grounding piece integrally connected with the terminals located in the lower row is bent downward.

In some embodiments, it further includes a plate-shaped shield located between the contact portions of the signal terminals of the upper and lower rows of terminals, and the plate-shaped shield is mechanically and electrically connected to the upper and lower rows of terminals. Ground terminal.

In some embodiments, the plate-shaped shield integrally has a plurality of contact fingers that contact the lateral sides of the contact portions of the ground terminals.

In some embodiments, the terminals are arranged side by side in two rows up and down, and the contact portions of the terminals are in the shape of elastic sheets.

In some embodiments, two of the signal terminals form a pair of signal terminals, and the signal terminal pairs are respectively located between two adjacent ground terminals.

In the connector of the present invention, the common grounding piece that is integrally bent from the rear ends of the fixing parts of the two grounding terminals does not increase the length of the terminals and does not occupy the space between the two grounding terminals, Therefore, the distance between the ground terminals can be made smaller, and the terminals can be applied to smaller connectors. Furthermore, the common grounding piece can be easily manufactured and formed by simple punching and bending, and since the common grounding piece is bent from the rear end of the fixed portion of the grounding terminal, it is not easy to affect the grounding The forming of the terminal. Moreover, since the common grounding member relatively staggers the extension paths of the terminals, the grounding terminals and the signal terminals can be completely side by side, preventing the shielding effect of the grounding terminals from being affected and increasing the signal integrity. In addition, the common grounding element is suspended behind the rear end surface of the insulating base, and the insulating base does not need to be provided with a channel for accommodating the common grounding element, so as to maintain the strength and alignment of the insulating base. The holding force of the terminal.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same numbers.

Referring to FIGS. 1 to 5, a first embodiment of the connector 100 of the present invention is a plug connector, which includes an insulating base 1, a plurality of terminals 2, a back cover 12, and a plate-shaped shield 3.

The insulating base 1 can be made of, for example, a polymer material such as plastic. The insulating base 1 includes a base 11 extending laterally along a left-right direction D2, and a base 11 located at the front end of the base 11 along a front-to-rear direction D1. The mating portion 111, the base 11 has a rear end surface 112 at the rear end and a plurality of terminal fixing grooves 113 penetrating forward from the rear end surface 112. The terminals 2 are arranged side by side in the left-right direction D2 and divided into upper and lower rows in a vertical direction D3. Each terminal 2 integrally has a fixing portion 21 and a flat contact portion extending forward from the fixing portion 21 22, and a tail 23 of a circuit board (not shown) that extends obliquely backward and downward from the rear end 210 of the fixing portion 21, and the fixing portions 21 of the terminals 2 face from the rear, respectively Frontally inserted into the terminal fixing groove 113 of the base 11, and the fixing portion 21 is formed on both sides of the left and right direction D2 with barbed shapes that interfere with the inner wall surface of the terminal fixing groove 113 A plurality of interference bumps 211, and the contact portions 22 of the terminals 2 are located at the mating portion 111. The base 11 also has a plurality of positioning posts 114 at the bottom, and two installation grooves 115 formed at the bottom for two fixing members (not shown) to pass through. The two positioning posts 114 are used for passing through two positioning holes (not shown in the figure) of the circuit board, and the two fixing members are used for soldering to the circuit board. The rear cover 12 extends along the left-right direction D2 and is assembled to the rear of the insulating base body from back to front along the front-rear direction D1 to partially cover the tail portions 23 of the terminals 2. In detail, the insulating base body is integrated It includes two assembling parts 116 extending rearward from the left and right sides of the base 11, and the inner side of each assembling part 116 has a protruding strip 116a extending in the front-to-rear direction D1, and the top of the protruding strip 116a. The back cover 12 has two grooves 121 formed at the left and right sides and used to accommodate the protruding bars 116a, and are respectively formed at the tops of the two grooves 121 and respectively The two second locking blocks 122 are used to engage the first locking blocks 116b, so that the back cover 12 can be held at the rear of the insulating base body. In detail, the back cover 12 has a plurality of accommodating grooves 123 for accommodating the tail portions 23 of the upper row of terminals 2 (see FIG. 11), and the insulating base body 1 integrally includes two left and right sides from the base 11 There are two insertion slots 11a (see Figure 1) extending forward at the sides. The two insertion slots 11a are respectively located on both sides of the mating portion 111. The insertion slots 11a are connected to the insertion slots 11a on both sides of the socket connector of the second embodiment. The post 11b (see Fig. 14) is correspondingly plugged so as to play a guiding and guiding role when the two connectors are mated.

Referring to Figures 3 to 4 and Figures 6 to 9, in the first embodiment, the abutting portion 111 is in the shape of a plate protruding forward and extending along the left and right direction D2, and the abutting portion 111 is formed on the top surface A plurality of setting grooves 111a connected to the bottom surface of the terminal fixing grooves 113, the contact portions 22 of the terminals 2 are respectively accommodated in the setting grooves 111a of the mating portion 111, and the contact portions of the terminals are provided on both sides There are interference projections 211 (see FIG. 6) that interfere with the inner wall surface of the groove 111a. The terminals 2 include a plurality of ground terminals 2a and a plurality of signal terminals 2b. Two of the signal terminals 2b form a pair of signal terminals. The signal terminal pairs are located between two adjacent ground terminals 2a. between. Wherein, a common grounding member 20 is integrally formed between some two adjacent grounding terminals 2a, so that a plurality of common grounding members 20 are formed between the terminals 2 and each common grounding member 20 is The two ends are respectively integrally connected to the rear ends 210 of the fixing portions 21 of the two grounding terminals 2a, and each common grounding member 20 staggers the extension paths of the terminals 2 and crosses between the two grounding terminals 2a laterally. The signal terminal 2b in between, the common grounding member 20 does not touch the signal terminal 2b. With the common grounding member 20, two or more ground terminals 2a can be connected to each other to have the same potential, shorten the return path of the ground terminals 2a and improve the ground integrity of the ground terminals 2a, so as to reduce The loop inductance of the signal terminals 2b improves the signal integrity. Moreover, since the common grounding member 20 staggers the extension path of the terminal 2, the grounding terminals 2a and the signal terminals 2b can be completely side by side, avoiding the shielding effect of the grounding terminals 2a from being affected to increase the signal integrity.

Each common grounding member 20 includes two bending portions 20a integrally bent and extending backward from the rear end 210 of the fixing portion 21 of the two grounding terminals 2a at the side which is offset from the position of the tail portion 23 of the terminal 2, and It is integrally connected to the two bending portions 20a and crosses a cross portion 20b of the signal terminal 2b located between the two ground terminals 2a transversely along the left-right direction D2. The bent portion 20a of the common grounding member 20 to which the terminals 2 in the upper row are integrally connected is bent upward, as shown in FIGS. 6 to 7, the terminals 2 in the lower row are integrally connected to the The bending portion 20a of the common ground member 20 is bent downward, as shown in FIGS. 8-9. Since the common ground member 20 is integrally bent from the rear end 210 of the fixed portion 21 of the two ground terminals 2a, that is, the common ground member 20 and the tail portion 23 of the terminal 2 extend from the same rear end 210 of the fixed portion 21. Increasing the length of the terminal 2 does not occupy the space between the two ground terminals 2a, so the space between the ground terminals 2a can be made smaller, and the terminal 2 can be applied to a smaller connector 100. Furthermore, the common grounding member 20 can be easily manufactured and formed by simple punching and bending, and since the common grounding member 20 is bent from the rear end 210 of the fixed portion 21 of the ground terminal 2a, it is not easy to affect The formation of the ground terminal 2a. In addition, the common grounding member 20 is suspended behind the rear end surface 112 and outside the terminal fixing grooves 113, so the base 11 of the insulating base body 1 does not need to be provided with a channel for accommodating the common grounding member 20 to maintain The strength of the base 11 of the insulating base body 1 and the holding force to the terminal 2.

Referring to FIGS. 5 and 10 to 13, the plate-shaped shield 3 is disposed on the mating portion 111 of the base 11 and is located between the contact portions 22 of the signal terminals 2b of the upper and lower rows of terminals 2. The plate-shaped shield The component 3 is mechanically and electrically connected to the ground terminal 2a of the upper and lower rows of terminals 2. In detail, the mating portion 111 forms a slot 111b backwards from the front end, the slot 111b communicates with more of the slots 111a, and the plate-shaped shield 3 is inserted into the slot 111b. The ground has a plurality of contact fingers 31 protruding to the set groove 111a to contact the sides of the contact portions 22 of the ground terminals 2a in the left-right direction D2, and are formed on the left and right sides and are barbed-shaped And the two interference protrusions 32 used to interfere with the inner wall surface of the slot 111b, through the contact fingers 31, the plate-shaped shield 3 can be mechanically and electrically connected to the upper and lower rows of terminals 2 The ground terminal 2a is used, and the plate-shaped shield 3 can be held in the slot 111b through the two interference protrusions 32. The plate-shaped shield 3 which is in contact with the ground terminal 2a and is located between the upper and lower rows of signal terminals 2b can reduce the crosstalk between the signal terminal pairs facing each other in the vertical direction D3. It should be noted that although in the first embodiment, the number of plate-shaped shielding members 3 is only one, in other embodiments, the number of plate-shaped shielding members 3 may also be multiple. In addition, one In the modified embodiment, the connector 100 may not have the plate-shaped shielding member 3, that is, the number of the plate-shaped shielding member 3 can be adjusted according to requirements, and is not limited by the first embodiment.

Referring to FIGS. 14 to 18, a second embodiment of the connector 100 of the present invention is a socket connector, which is suitable for mating with the plug connector of the first embodiment. In the second embodiment, the mating portion 111' of the insulating base body 1 is formed at the front end of the base 11 and extending along the left-right direction D2 in the shape of a slot, and the mating portion 111' is formed with a top inner wall surface The contact portions 22 of the terminals 2 are in the shape of elastic pieces and respectively extend forward and inwardly and are accommodated in the mating portions 111', which are connected to the inner wall of the bottom and are connected to the plurality of setting grooves 111a' of the terminal fixing grooves 113. The slots 111a' are provided. Moreover, in the second embodiment, only the upper row of terminals 2 is integrally formed with the common grounding member 20, as shown in FIGS. 17 and 18. However, in other embodiments, only the bottom The row of terminals 2 is integrally formed with the common ground member 20, or as in the first embodiment, the upper and lower rows of terminals 2 are integrally formed with the common ground member 20. Furthermore, the bent portion 20a of the common ground member 20 formed integrally with the upper row of terminals 2 is bent downward, but it can also be bent upward as in the first embodiment, instead of this Is limited. In addition, the connector 100 also includes a shield 4 disposed in the base 11 and located below the lower row of terminals 2. As shown in FIGS. 16 and 17, the shield 4 is mechanically and electrically connected to In the ground terminal 2a of the lower row of terminals 2, the shield 4 extends substantially along the left-right direction D2 and across the ground terminals 2a, and has a fixed portion extending forward and upward and contacting the ground terminals 2a 21 of multiple elastic contact fingers 41. The shielding member 4 can play a role similar to the common grounding member 20, so that the grounding terminals 2a can be connected to each other and have the same potential, shortening the return path of the grounding terminals 2a and improving the ground integrity of the grounding terminals 2a. In order to reduce the loop inductance of the signal terminals 2b and improve the signal integrity. In detail, both sides of the insulating base body 1 of the socket connector of the second embodiment are provided with two insertion slots 11a (see FIG. 1) corresponding to the insulating base body 1 of the plug connector of the first embodiment.接接柱11b.

In summary, in the connector 100 of the present invention, the common grounding member 20 that is integrally bent from the rear end 210 of the fixing portion 21 of the two grounding terminals 2a does not increase the length of the terminal 2 nor occupy it. The distance between the two ground terminals 2a, therefore, the distance between the ground terminals 2a can be made smaller, and the terminal 2 can be applied to a smaller connector 100. Furthermore, the common grounding member 20 can be easily manufactured and formed by simple punching and bending, and since the common grounding member 20 is bent from the rear end 210 of the fixed portion 21 of the ground terminal 2a, it is not It is easy to affect the formation of the ground terminal 2a. Moreover, since the common grounding member 20 relatively staggers the extension path of the terminal 2, the grounding terminals 2a and the signal terminal 2b can be completely side by side, preventing the shielding effect of the grounding terminal 2a from being affected to increase the signal integrity. In addition, the common grounding member 20 is suspended behind the rear end surface 112, and the insulating base body 1 does not need to be provided with a channel for accommodating the common grounding member 20, so as to maintain the strength and strength of the insulating base body 1 Holding power to terminal 2.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the content of the patent specification still belong to This invention patent covers the scope.

100: connector 1: Insulating seat body 11: Pedestal 11a: socket 11b: plug post 111: Docking Department 111’: Butt 111a: set slot 111a’: Set the slot 111b: Slot 112: rear face 113: Terminal fixing groove 114: positioning column 115: installation slot 116: Assembly Department 116a: ridge 116b: The first card block 12: back cover 121: Groove 122: second card block 123: Containment Slot 2: terminal 2a: Ground terminal 2b: Signal terminal 20: Common ground 20a: Bending part 20b: Cross section 21: Fixed part 210: backend 211: Interference bump 22: Contact 221: interference bump 23: tail 3: Plate shield 31: Contact finger 32: Interference bump 4: Shield 41: Elastic contact finger D1: front and rear direction D2: Left and right direction D3: Up and down direction

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a perspective view of a first embodiment of the connector of the present invention; Figure 2 is a perspective view of Figure 1 viewed from another perspective; Figure 3 is a perspective exploded view of the first embodiment; 4 is a perspective exploded view of the first embodiment, the back cover of the first embodiment is omitted in the figure; Fig. 5 is a perspective exploded view of Fig. 4 viewed from another angle of view, the back cover of the first embodiment is omitted in the figure; Figure 6 is a perspective view of the terminals located in the upper row of the first embodiment; FIG. 7 is a perspective view of the ground terminal and the common ground member in the upper row of the first embodiment; Figure 8 is a perspective view of the terminals located in the lower row of the first embodiment; Fig. 9 is a perspective view of the grounding terminal and the common grounding member in the lower row of the first embodiment; Figure 10 is a top view of the first embodiment; Figure 11 is a cross-sectional view taken along line A-A in Figure 10; 12 is a perspective view of the terminal and the plate-shaped shield of the first embodiment, illustrating the arrangement of the plate-shaped shield and the terminal; Figure 13 is a front view of the terminal and the plate-shaped shield of the first embodiment, illustrating the arrangement of the plate-shaped shield and the terminal; Figure 14 is a perspective view of a second embodiment of the connector of the present invention; Figure 15 is a top view of the second embodiment; Figure 16 is a cross-sectional view taken along line B-B in Figure 15; 17 is a perspective view of the terminals located in the upper row and the terminals located in the lower row of the second embodiment; and Fig. 18 is a perspective view of the ground terminal in the upper row of the second embodiment.

100: connector

1: Insulating seat body

11: Pedestal

111: Docking Department

111a: set slot

112: rear face

113: Terminal fixing groove

114: positioning column

115: installation slot

116: Assembly Department

116a: ridge

116b: The first card block

2: terminal

2a: Ground terminal

2b: Signal terminal

20: Common ground

20a: Bending part

20b: Cross section

21: Fixed part

210: backend

211: Interference bump

22: Contact

23: tail

3: Plate shield

31: Contact finger

32: Interference bump

D1: front and rear direction

D2: Left and right direction

D3: Up and down direction

Claims (9)

A connector that contains: An insulating base body, comprising a base extending laterally, and a butting portion at the front end of the base, the base having a rear end surface facing the rear end, and a plurality of terminal fixing grooves formed forward from the rear end surface; as well as A plurality of terminals, each terminal integrally has a fixing portion, a contact portion extending forward from the fixing portion, and a tail portion extending rearward from the rear end of the fixing portion. The fixing portions of the terminals are respectively separated from the rear It is inserted into the terminal fixing groove of the base forwardly, and the contact portions of the terminals are located in the mating portion, wherein the terminals include a plurality of ground terminals and a plurality of signal terminals, and at least two of the ground terminals The two ends of the common grounding member are respectively integrally connected to the rear ends of the fixing parts of the two grounding terminals. The common grounding member staggers the extension paths of the terminals and crosses the The signal terminal between the two ground terminals. The connector according to claim 1, wherein the common grounding member includes two bending portions extending integrally and bendingly from the rear ends of the fixing portions of the two grounding terminals respectively, and integrally connected to the two bending portions. The bent portion laterally crosses a cross portion of the signal terminal between the two ground terminals. The connector according to claim 2, wherein the common grounding member is located behind the rear end surface of the base and outside the terminal fixing grooves. The connector according to claim 3, wherein the terminals are arranged side by side with each other. The connector according to claim 4, wherein the terminals are arranged side by side in two rows up and down, the contact portions of the terminals are in the shape of a flat plate, and a plurality of the common grounding members are formed between the terminals, and The bending part of the common grounding piece integrally connected with the terminals in the upper row is bent upward, and the bending part of the common grounding piece integrally connected with the terminals located in the lower row is bent downward. The connector according to claim 5, further comprising a plate-shaped shield located between the contact portions of the signal terminals of the upper and lower rows of terminals, and the plate-shaped shield is mechanically and electrically connected to the upper and lower rows The ground terminal in the terminal. The connector according to claim 6, wherein the plate-shaped shield integrally has a plurality of contact fingers that contact the lateral sides of the contact portions of the ground terminals. The connector according to claim 4, wherein the terminals are arranged side by side in two rows up and down, and the contact portions of the terminals are in the shape of shrapnel. The connector according to claim 1, wherein two of the signal terminals form a pair of signal terminals, and the signal terminal pairs are respectively located between two adjacent ground terminals.

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