TW202220300A - Electrical connection device with each socket terminal having a fixing section, an elastic section, and a tail section extending from the bottom end of the fixed section to the direction of the second side wall portion - Google Patents

Abstract

An electrical connection device is disclosed, which includes a socket connector. The socket connector includes a socket housing and plural socket terminals. The socket housing has a bottom surface, a top surface, and plural terminal grooves extending from the bottom surface to the top surface, the groove wall defining each terminal groove includes a first side wall portion, a second side wall portion, and a top wall portion opposite to each other. Also, the top wall portion is spaced apart from the second side wall portion, so that the terminal groove forms a socket portion exposing the top surface. Each socket terminal has a fixing section fixed on the socket housing and close to the bottom surface and the first side wall portion, an elastic section extending linearly upward obliquely from the top of the fixing section to the second side wall portion and then folded back to the top wall portion extending linearly upward obliquely, and a tail section extending from the bottom end of the fixed section to the direction of the second side wall portion. The elastic section has a contact portion formed at the inflection section and located below the socket portion, and a guide surface facing the socket portion.

Description

Electrical connection device

The present invention relates to an electrical connection device, in particular to an electrical connection device with low height and suitable for high-speed transmission.

At present, electronic information products tend to be light and thin, and due to the large amount of information, they need to meet the requirements of fast transmission speed. In electronic information products, electrical connectors usually play an important role in signal transmission. Since the volume of the electronic information product needs to be light and thin, the height of the electrical connector must also be reduced, so as to reduce the space occupied in the housing of the electronic information product.

How to reduce the height of the electrical connector, for example, the height is less than 5mm, and meet the electrical requirements of high-speed transmission, such as the requirement of 112GHz transmission speed, still needs to be improved.

Therefore, one of the objectives of the present invention is to provide an electrical connection device that is low in height and can meet the electrical requirements of high-speed transmission.

Therefore, in some embodiments, the electrical connection device of the present invention includes a socket connector. The socket connector includes a socket shell and a plurality of socket terminals. The socket housing has a bottom surface, a top surface opposite to the bottom surface, and a plurality of terminal grooves extending from the bottom surface to the top surface. The groove walls defining each terminal groove include a first side wall portion opposite to each other and a A second side wall portion and a top wall portion extending from the first side wall portion to the second side wall portion, and the top wall portion and the second side wall portion are spaced apart so that the terminal groove forms a socket portion exposing the top surface . The socket terminals are respectively disposed in the terminal grooves, and each socket terminal has a fixed section fixed to the socket housing and close to the bottom surface and the first side wall portion, from the top of the fixed section to the second side wall portion An elastic segment extending obliquely upward and straight and then folded back toward the top wall portion and extending obliquely and linearly, and a tail segment extending from the bottom end of the fixing segment toward the second side wall portion. The end of the elastic segment is located below the top wall portion and has a contact portion formed at the inflection portion and located below the socket portion and a contact portion between the contact portion and the end of the elastic segment and facing the socket portion guide surface.

In some embodiments, the socket housing further has a plurality of positioning walls protruding from the bottom surface corresponding to the corresponding terminal grooves, and each positioning wall is disposed along the peripheral side of the tail section of the corresponding socket terminal.

In some embodiments, the tail section has a bonding surface facing down for bonding with a solder.

In some embodiments, the soldering surface is a concave arc surface and the solder is a solder ball, so that the soldering surface matches the surface shape of the solder ball.

In some embodiments, the width of the fixing section of each socket terminal is greater than the width of the tail section, and the tail section extends from the middle part of the bottom end of the fixing section, and the fixing section has two corresponding to the tail from the bottom end. Inwardly concave notches on both sides of the segment.

In some embodiments, the contact portion is pressed against the second sidewall portion to have a preload force.

In some embodiments, a plug connector for mating with the receptacle connector is also included, the plug connector includes a plug housing and a plurality of plug terminals disposed on the plug housing, the plug terminals are connected with Corresponding to the socket terminals, the socket portion of the socket connector is used for the insertion of the plug terminals to limit the insertion process of the plug terminals so that the ends of the plug terminals push against the guide surfaces of the corresponding socket terminals The contact parts are moved in a direction away from the second side wall part, so that the contact parts of the socket terminals abut against the corresponding plug terminals.

In some embodiments, the plug terminals are divided into a plurality of plug terminal groups, each plug terminal group is composed of three plug terminals, two of which are signal terminals and the other plug terminal is a ground terminal. The terminal has two conductive parts located on both sides of the signal terminals and a connecting part connected to the conductive parts, the socket terminals are divided into a plurality of socket terminal groups and correspond to the plug terminal groups respectively, Each socket terminal group is composed of four socket terminals side by side, wherein the two socket terminals located in the middle correspond to the signal terminals respectively, and the two socket terminals located on both sides correspond to the two conductive parts of the ground terminal. , the terminal slots correspond to the socket terminal groups into a plurality of terminal slot groups, and the socket housing also has a plurality of slots corresponding to the corresponding terminal slot groups for the connection of the ground terminals of the socket terminal groups. Insertion.

In some implementations, the height of each receptacle terminal is less than 2 mm and the height of the receptacle connector is less than 5 mm.

Therefore, in some embodiments, the electrical connection device of the present invention includes a socket connector. The socket connector includes a socket housing and a plurality of terminal bases. The socket housing has a bottom surface, a top surface opposite to the bottom surface, and a plurality of terminal groove groups. Each terminal groove group includes an accommodating groove recessed from the bottom surface and a plurality of connecting grooves and extending toward the accommodating groove. The terminal slots extending from the top surface, the slot walls defining each terminal slot include a first side wall portion and a second side wall portion opposite to each other and a top wall portion extending from the first side wall portion to the second side wall portion, And the top wall portion and the second side wall portion are spaced apart so that the terminal groove forms a socket portion exposing the top surface. The terminal bases are respectively disposed in the terminal groove groups, each terminal base includes an insulating base body and a plurality of socket terminals, and the insulating base body is disposed in the accommodating groove corresponding to the terminal groove group. Each socket terminal is disposed corresponding to one of the terminal grooves and has a fixed section fixed on the insulating base body and close to the first side wall portion, extending obliquely straight up from the top of the fixed section to the second side wall portion and then folded back to the second side wall portion. An elastic section extending obliquely straight upward from the top wall portion and a tail section extending from the bottom end of the fixing section to the direction of the second side wall portion. The end of the elastic segment is located below the top wall portion and has a contact portion formed at the inflection portion and located below the socket portion and a contact portion between the contact portion and the end of the elastic segment and facing the socket portion guide surface.

In some embodiments, the soldering surface is a concave arc surface and the solder is a solder ball, so that the soldering surface matches the surface shape of the solder ball.

In some embodiments, the tail section has a bonding surface facing down for bonding with a solder.

In some embodiments, the width of the fixing section of each socket terminal is greater than the width of the tail section, and the tail section extends from the middle part of the bottom end of the fixing section, and the fixing section has two corresponding to the tail from the bottom end. Inwardly concave notches on both sides of the segment.

In some embodiments, the contact portion is pressed against the second sidewall portion to have a preload force.

In some embodiments, a plug connector for mating with the receptacle connector is also included, the plug connector includes a plug housing and a plurality of plug terminals disposed on the plug housing, the plug terminals are connected with Corresponding to the socket terminals, the socket portion of the socket connector is used for the insertion of the plug terminals to limit the insertion process of the plug terminals so that the ends of the plug terminals push against the guide surfaces of the corresponding socket terminals The contact parts are moved in a direction away from the second side wall part, so that the contact parts of the socket terminals abut against the corresponding plug terminals.

In some embodiments, the plug terminals are divided into a plurality of plug terminal groups, each plug terminal group is composed of three plug terminals, two of which are signal terminals and the other plug terminal is a ground terminal. The terminal has two conductive parts located on both sides of the signal terminals and a connecting part connected to the conductive parts. The terminal bases correspond to the plug terminal groups respectively, and each terminal base has a total of four side by side. The socket terminals, wherein the two socket terminals located in the middle correspond to the signal terminals respectively, and the two socket terminals located on both sides correspond to the two conductive parts of the ground terminal, and each terminal slot group also includes a The slot is for inserting the connection part of the corresponding ground terminal.

In some implementations, the height of each receptacle terminal is less than 2 mm and the height of the receptacle connector is less than 5 mm.

In some embodiments, each terminal block is formed by insert molding.

The present invention has at least the following effects: the socket connector as a whole can meet the requirements of miniaturization and low height, and can meet the electrical requirements of high-speed transmission (112GHz).

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

Referring to FIG. 1 and FIG. 2 , a first embodiment of the electrical connection device of the present invention includes a socket connector 100 . The socket connector 100 includes a socket housing 1 and a plurality of socket terminals 2 . In this embodiment, the height of the socket connector 100 is less than 5 mm, which is a small connector with low height.

3 to 5 , the socket housing 1 has a bottom surface 11 , a top surface 12 opposite to the bottom surface 11 , and a plurality of terminal slots 13 extending from the bottom surface 11 to the top surface 12 . The groove wall defining each terminal groove 13 includes a first side wall portion 131 and a second side wall portion 132 opposite to each other and a top wall portion 133 extending from the first side wall portion 131 to the second side wall portion 132, and The top wall portion 133 and the second side wall portion 132 are spaced apart so that the terminal groove 13 forms a socket portion 134 exposed from the top surface 12 . In this embodiment, the terminal slots 13 are divided into a plurality of terminal slot groups 130 . Specifically, each terminal slot group 130 is composed of four terminal slots 13 . In addition, in this embodiment, the socket housing 1 further has a plurality of slots 14 corresponding to the corresponding terminal slot groups 130 , that is, each terminal slot group 130 further includes a slot 14 , the slot 14 communicates with the terminal slot 13 and its socket portion 134 located on the two outer sides.

Referring to FIG. 5 to FIG. 7 , the socket terminals 2 are respectively disposed in the terminal slots 13 . Each socket terminal 2 has a fixing section 21 fixed to the socket housing 1 and close to the bottom surface 11 and the first side wall portion 131 . An elastic section 22 folded to the top wall portion 133 and extending obliquely upward and a tail section 23 extending from the bottom end of the fixing section 21 to the direction of the second side wall portion 132 . The end of the elastic segment 22 is located below the top wall portion 133 and has a contact portion 221 formed at the inflection point and located below the socket portion 134 , and a contact portion 221 between the contact portion 221 and the end of the elastic segment 22 . A guide surface 222 facing the socket portion 134 . In this embodiment, the contact portion 221 is pressed against the second side wall portion 132 to have a preload force. The tail section 23 has a bonding surface 231 which faces downward and is used for bonding with a solder S. In this embodiment, the soldering surface 231 is a concave arc surface and the solder S is a solder ball S, so that the soldering surface 231 matches the surface shape of the solder ball S, so that the soldering surface 231 and the solder ball S can be connected between the soldering surface 231 and the solder ball S. When soldering, the solder balls S can be pre-positioned first and have a better contact surface to facilitate soldering.

In this embodiment, the width of the fixing section 21 of each socket terminal 2 is greater than the width of the tail section 23, and the tail section 23 extends from the middle part of the bottom end of the fixing section 21. The fixing section 21 has two The ends respectively correspond to the inwardly recessed grooves 211 on both sides of the tail section 23 . With the notches 211, the bent portion of the tail section 23 can be made closer to the fixing section 21, so that the height of the socket terminal 2 can be reduced, and the elasticity of the tail section 23 can be increased, that is, the tail section 23 can be increased. The elastic adjustment ability of the segment 23 under external force to reduce the risk of breakage. In this embodiment, the height of each socket terminal 2 is less than 2 mm.

Referring to FIG. 8 and FIG. 9 , in this embodiment, the electrical connection device further includes a plug connector 200 for mating with the socket connector 100 , for the sake of convenience, only the plug connector is shown in the figure part of 200. The plug connector 200 includes a plug housing 3 and a plurality of plug terminals 4 disposed in the plug housing 3 , and the plug terminals 4 correspond to the socket terminals 2 . Referring to FIGS. 10 to 12 , the socket portion 134 of the socket connector 100 is used for inserting the plug terminals 4 to limit the plug terminals 4 during the insertion process, so that the ends of the plug terminals 4 push against the corresponding sockets The guide surfaces 222 of the terminals 2 move the contact portions 221 in a direction away from the second side wall portion 132 , so that the contact portions 221 of the socket terminals 2 abut against the corresponding plug terminals 4 . The contact portions 221 of the socket terminals 2 have a preload force, and can generate a large positive force to contact the plug terminals 4 when they abut against the corresponding plug terminals 4 , thereby ensuring the stability of the electrical connection.

8 and 9 again, the plug terminals 4 are divided into a plurality of plug terminal groups B, and only one plug terminal group B is shown in the figures. Each plug terminal group B is composed of three plug terminals 4 , two of which are signal terminals 4S and the other plug terminal 4 is a ground terminal 4G. The ground terminal 4G has two conducting portions 41 located on both sides of the signal terminals 4S respectively, and a connecting portion 42 connecting the conducting portions 41 . The socket terminals 2 are divided into a plurality of socket terminal groups A and correspond to the plug terminal groups B respectively. Each socket terminal group A is composed of four socket terminals 2 side by side, wherein the two socket terminals 2 located in the middle correspond to the signal terminals 4S respectively, and the two socket terminals 2 located on both sides correspond to the ground terminal 4G. The two guide portions 41 are butted against each other. 6 and FIG. 11 , the slot 14 of each terminal slot group 130 is used for inserting the connecting portion 42 of the ground terminal 4G. The grounding terminal 4G of each plug terminal group B consists of two conducting portions 41 and a connecting portion 42 to form a large-area grounding structure, which can increase grounding performance and reduce interference during high-speed signal transmission.

Referring to FIGS. 13 and 14 , the difference between the second embodiment of the electrical connection device of the present invention and the first embodiment is that in the second embodiment, the socket housing 1 further has a plurality of protrusions corresponding to the corresponding terminal slots 13 respectively. Due to the positioning walls 15 of the bottom surface 11 , each positioning wall 15 is disposed along the periphery of the corresponding tail section 23 of the socket terminal 2 for positioning the solder balls S, which is convenient for setting the solder balls S and soldering operations.

15 to 18 , the difference between the third embodiment of the electrical connection device of the present invention and the first embodiment is that, in the third embodiment, each socket terminal group A is disposed on an insulating base 24 to form a terminal The base 20, and the fixing section 21 of each socket terminal 2 is fixed on the insulating base body 24, and each terminal groove group 130 of the socket housing 1 further includes a recessed from the bottom surface 11 and is connected with the terminal grooves 13. An accommodating groove 16 is connected through, and the accommodating groove 16 is used for disposing the insulating base body 24 . In the third embodiment, each terminal base 20 is formed by insert molding.

However, the above are only examples of the present invention, and should not limit the scope of the present invention. Any simple equivalent changes and modifications made according to the scope of the application for patent of the present invention and the content of the patent specification are still within the scope of the present invention. within the scope of the invention patent.

100: Socket connector 200: Plug Connector 1: Socket housing 11: Bottom surface 12: Top surface 13: Terminal slot 130: Terminal slot group 131: First side wall part 132: Second side wall part 133: top wall 134: Socket 14: Slot 15: Position the wall 16: accommodating slot 2: Socket terminal 20: Terminal Block 21: Fixed segment 211: missing slot 22: Elastic segment 221: Contact Department 222: Guide Surface 23: tail section 231: Welding surface 24: Insulation seat 3: Plug housing 4: Plug terminal 41: Conductor 42: Connection part 4S: Signal terminal 4G: Ground terminal A: Socket terminal group B: Plug terminal group S: Solder (Solder Ball)

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein: 1 is a perspective view of a first embodiment of a socket connector of an electrical connection device of the present invention; FIG. 2 is a perspective view of FIG. 1 from another perspective; Figure 3 is an incomplete perspective view of the first embodiment; FIG. 4 is a perspective view of FIG. 3 from another perspective; Fig. 5 is a sectional view taken along line V-V in Fig. 3; Figure 6 is a fragmentary exploded perspective view of the first embodiment; FIG. 7 is an exploded perspective view of FIG. 6 from another perspective; FIG. 8 is an incomplete perspective exploded view illustrating the mating relationship between the receptacle connector and the plug connector of the first embodiment; 9 is an incomplete perspective view illustrating the mating relationship of the socket terminal and the plug terminal of the first embodiment, with the socket housing removed; Figure 10 is an incomplete bottom view of the first embodiment; Fig. 11 is a sectional view taken along line XI-XI in Fig. 10; Figure 12 is a sectional view taken along line XII-XII in Figure 10; 13 is a fragmentary perspective view of a second embodiment of the receptacle connector of the electrical connection device of the present invention; Figure 14 is a perspective view of Figure 13 from another perspective; Fig. 15 is an incomplete perspective view of the third embodiment of the socket connector of the electrical connection device of the present invention; Figure 16 is an exploded perspective view of Figure 15; Figure 17 is a perspective view of Figure 16 from another perspective; and FIG. 18 is a cross-sectional view taken along the line XVIII-XVIII in FIG. 15 .

100: Socket connector

1: Socket housing

11: Bottom surface

12: Top surface

13: Terminal slot

131: First side wall part

132: Second side wall part

133: top wall

134: Socket

14: Slot

2: Socket terminal

21: Fixed segment

22: Elastic segment

221: Contact Department

222: Guide Surface

23: tail section

231: Welding surface

S: Solder (Solder Ball)

Claims (18)

An electrical connection device, comprising: a socket connector, including A socket housing has a bottom surface, a top surface opposite to the bottom surface, and a plurality of terminal grooves extending from the bottom surface to the top surface, and the groove wall defining each terminal groove includes a first side wall portion opposite to each other and a A second side wall portion and a top wall portion extending from the first side wall portion to the second side wall portion, and the top wall portion and the second side wall portion are spaced apart so that the terminal groove forms a socket exposing the top surface Department, and A plurality of socket terminals are respectively arranged in the terminal grooves, each socket terminal has a fixed section fixed on the socket housing and close to the bottom surface and the first side wall, from the top of the fixed section to the second side wall an elastic section extending obliquely upward and straight back to the top wall section and a tail section extending from the bottom end of the fixed section to the direction of the second side wall section, the end of the elastic section is located on the top wall The lower part has a contact part formed at the inflection part and located below the socket part and a guide surface between the contact part and the end of the elastic segment and facing the socket part. The electrical connection device according to claim 1, wherein the socket housing further has a plurality of positioning walls protruding from the bottom surface corresponding to the corresponding terminal slots, and each positioning wall is disposed along the peripheral side of the tail section of the corresponding socket terminal . The electrical connection device of claim 1, wherein the tail section has a soldering surface that faces downward and is used for soldering with a solder. The electrical connection device of claim 3, wherein the soldering surface is a concave arc surface and the solder is a solder ball, so that the soldering surface matches the surface shape of the solder ball. The electrical connection device of claim 1, wherein the width of the fixing section of each socket terminal is greater than the width of the tail section, and the tail section extends from the middle part of the bottom end of the fixing section, and the fixing section has two The ends respectively correspond to the concave grooves on both sides of the tail section. The electrical connection device of claim 1, wherein the contact portion is pressed against the second side wall portion to have a preload force. The electrical connection device of claim 1, further comprising a plug connector for mating with the receptacle connector, the plug connector comprising a plug housing and a plurality of plug terminals disposed on the plug housing, the The plug terminals correspond to the socket terminals, and the socket portion of the socket connector is used for the insertion of the plug terminals to limit the insertion process of the plug terminals, so that the ends of the plug terminals push against the corresponding socket terminals. The guiding surface moves the contact portions in a direction away from the second side wall portion, so that the contact portions of the socket terminals abut against the corresponding plug terminals. The electrical connection device of claim 7, wherein the plug terminals are divided into a plurality of plug terminal groups, each plug terminal group is composed of three plug terminals, two of which are signal terminals and the other plug terminal is A ground terminal, the ground terminal has two conductive parts located on both sides of the signal terminals and a connecting part connected to the conductive parts, the socket terminals are divided into a plurality of socket terminal groups and are respectively connected with the plugs Corresponding terminal groups, each socket terminal group is composed of four socket terminals side by side, wherein the two socket terminals located in the middle correspond to the signal terminals respectively, and the two socket terminals located on both sides correspond to the two socket terminals of the ground terminal. The terminal slots correspond to the socket terminal groups and are divided into a plurality of terminal slot groups. The socket housing also has a plurality of slots corresponding to the terminal slot groups for the socket terminal groups. the connection part of the ground terminal is inserted. The electrical connection device of claim 1, wherein the height of each socket terminal is less than 2 mm and the height of the socket connector is less than 5 mm. An electrical connection device, comprising: a socket connector, including A socket housing has a bottom surface, a top surface opposite to the bottom surface, and a plurality of terminal groove sets, each terminal groove set includes an accommodating groove recessed from the bottom surface and a plurality of accommodating grooves communicating with the accommodating grooves and extending toward the The terminal slots extending from the top surface, the slot walls defining each terminal slot include a first side wall portion and a second side wall portion opposite to each other and a top wall portion extending from the first side wall portion to the second side wall portion , and the top wall portion and the second side wall portion are spaced apart so that the terminal groove forms a socket portion exposing the top surface, and A plurality of terminal bases are respectively arranged in the terminal groove groups, each terminal base includes an insulating base body and a plurality of socket terminals, the insulating base body is arranged in the accommodating groove corresponding to the terminal groove group, and each socket terminal corresponds to One of the terminal grooves is provided and has a fixing section fixed on the insulating base and close to the first side wall, extending linearly from the top of the fixing section to the second side wall and then folded back to the top wall. An elastic section extending straight and a tail section extending from the bottom end of the fixing section to the direction of the second side wall portion, the end of the elastic section is located below the top wall portion and is formed at the inflection point and located below the socket portion A square contact portion and a guide surface between the contact portion and the end of the elastic segment and facing the socket portion. The electrical connection device of claim 10, wherein the tail section has a soldering surface that faces downward and is used for soldering with a solder. The electrical connection device of claim 11, wherein the soldering surface is a concave arc surface and the solder is a solder ball, so that the soldering surface matches the surface shape of the solder ball. The electrical connection device of claim 10, wherein the width of the fixing section of each socket terminal is greater than the width of the tail section, and the tail section extends from the middle part of the bottom end of the fixing section, and the fixing section has two The ends respectively correspond to the concave grooves on both sides of the tail section. The electrical connection device of claim 10, wherein the contact portion is pressed against the second side wall portion to have a preload force. The electrical connection device of claim 10, further comprising a plug connector for mating with the receptacle connector, the plug connector comprising a plug housing and a plurality of plug terminals disposed on the plug housing, the The plug terminals correspond to the socket terminals, and the socket portion of the socket connector is used for the insertion of the plug terminals to limit the insertion process of the plug terminals, so that the ends of the plug terminals push against the corresponding socket terminals. The guiding surface moves the contact portions in a direction away from the second side wall portion, so that the contact portions of the socket terminals abut against the corresponding plug terminals. The electrical connection device of claim 15, wherein the plug terminals are divided into a plurality of plug terminal groups, each plug terminal group is composed of three plug terminals, two of which are signal terminals and the other plug terminal is a grounding terminal, the grounding terminal has two conducting parts respectively located on both sides of the signal terminals and a connecting part connecting the conducting parts, the terminal bases are respectively corresponding to the plug terminal groups, each terminal The socket has four side-by-side socket terminals, wherein the two socket terminals located in the middle correspond to the signal terminals respectively, and the two socket terminals located on both sides correspond to the two conductive parts of the ground terminal. The slot group further includes a slot for inserting the connecting portion of the corresponding ground terminal. The electrical connection device of claim 10, wherein the height of each socket terminal is less than 2 mm and the height of the socket connector is less than 5 mm. The electrical connection device of claim 10, wherein each terminal block is formed by insert molding.

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