Terminal structure and board end connector

Abstract

The invention discloses a terminal structure and a board end connector, the terminal structure comprises a plurality of terminals, a terminal insulation body and a conductive colloid, each terminal is provided with a terminal body, a plugging end part and a connecting end part, and the plugging end part and the connecting end part are arranged at two ends of the terminal body; the terminal insulating body covers a plurality of terminal bodies of the plurality of terminals; the conductive colloid is arranged on one side of the terminal insulation body, and the surface, close to the terminal body, of the conductive colloid is parallel to the terminal body. The surface, close to the terminal body, of the conductive colloid is parallel to the terminal body, so that the SI performance of the board end connector using the terminal structure is improved.

Description

[0001] This application is a divisional application. The application date of the original application is April 24, 2020, the application number is 202010335250.6, and the application name is Terminal structure and board-end connector. Technical Field

[0002] The present application relates to the technical field of connectors, and in particular to a terminal structure and a board-end connector. Background Art

[0003] At present, SI performance is emphasized in connector design. Test data on SI performance of connectors include characteristic impedance, insertion loss and return loss, near-end crosstalk and far-end crosstalk of connectors. At present, the terminal structure of connectors includes multiple terminals and conductive colloids. The conductive colloids realize electromagnetic shielding and conduction. The structural shape corresponding to the conductive colloids and terminals will affect the SI performance of connectors. Summary of the invention

[0004] The embodiments of the present application provide a terminal structure and a board-end connector to solve the problem that the conductive colloid in the terminal structure of the current connector affects the SI performance of the connector.

[0005] In order to solve the above technical problems, this application is implemented as follows: In the first aspect, a terminal structure is provided, which includes: a plurality of terminals, each terminal having a terminal body, a plug-in end and a connecting end, the plug-in end and the connecting end being arranged at both ends of the terminal body; a terminal insulating body, a plurality of terminal bodies covering the plurality of terminals; a conductive colloid, arranged on one side of the terminal insulating body, and a surface of the conductive colloid close to the terminal body is parallel to the terminal body.

[0006] In the second aspect, a board-end connector is provided, which includes: a connector body, having a terminal accommodating groove, a plug-in groove and a positioning piece, the plug-in groove is connected to the terminal accommodating groove, the terminal accommodating groove has a accommodating opening, the plug-in groove has a plug-in opening, the positioning piece is located in the terminal accommodating groove, and its two ends are respectively connected to the two opposite side walls of the terminal accommodating groove; the two terminal structures as described in the first aspect are arranged in the connector body, the terminal insulation body and the conductive colloid of each terminal structure are located in the terminal accommodating groove, the conductive colloid is adjacent to the positioning piece, and the multiple plug-in ends of the multiple terminals of each terminal structure are located in the plug-in groove.

[0007] In the embodiment of the present application, the SI performance of the board-end connector using the terminal structure of the present application is improved by making the surface of the conductive colloid close to the terminal body parallel to the terminal body. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 is a three-dimensional diagram of the terminal structure of the first embodiment of the present application; Figure 2 is another three-dimensional diagram of the terminal structure of the first embodiment of the present application; Figure 3 yes Figure 1 A cross-sectional view along line A-A'; Figure 4 is a three-dimensional diagram of a board-end connector according to a second embodiment of the present application; Figure 5 is an exploded view of the board-end connector of the second embodiment of the present application; Figure 6 is another exploded view of the board-end connector of the second embodiment of the present application; Figure 7 is a cross-sectional view of the combination of the terminal structure, the connector body and the elastic fastener of the second embodiment of the present application; Figure 8 is a partial stereogram of a board-end connector according to a second embodiment of the present application; Fig. 9 yes Figure 4 A cross-sectional view along line BB'; Fig.10 yes Figure 4 Cross-sectional view along line C-C'.

[0009] The following is a description with reference to the accompanying drawings: 1: terminal structure; 10: terminal; 101: terminal body; 101a: first body portion; 101b: second body portion; 102: plug-in end portion; 103: connection end portion; 10c: signal terminal; 10d: ground terminal; 11: terminal insulation body; 111: groove; 112: first fixing protrusion; 113: second buckle portion; 12: conductive colloid; 12a: first surface; 12b: second surface; 121: protrusion; 122: second fixing protrusion; 123: second positioning portion; 2: board-end connector; 21: connector body; 211: terminal receiving groove; 211 1: first snap-fitting portion; 2110: accommodating opening; 212: plug-in slot; 2120: plug-in opening; 213: positioning member; 2131: slot; 2132: first positioning portion; 214: first snap-fitting slot; 215: second snap-fitting slot; 216: positioning column; 22: elastic snap-fitting member; 221: fixing elastic arm; 222: hook; 23: housing; 231: first opening; 232: second opening; 233: snap-fitting spring sheet; 234: making way opening; 235: snap-fitting member; 236: plug-in unit; 24: circuit board; 241: contact pad; 242: positioning hole; 243: plug-in socket. DETAILED DESCRIPTION

[0010] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0011] See also Figure 1 , Figure 2 and Figure 3 , which is a three-dimensional diagram of the terminal structure of the first embodiment of the present application and Figure 1 The cross-sectional view along the A-A' line in the figure; as shown in the figure, the terminal structure 1 of the present embodiment includes a plurality of terminals 10, a terminal insulating body 11 and a conductive colloid 12, the plurality of terminals 10 are arranged at intervals, each terminal 10 has a terminal body 101, a plug-in end 102 and a connecting end 103, the plug-in end 102 and the connecting end 103 are respectively arranged at both ends of the terminal body 101, the terminal insulating body 11 covers the plurality of terminal bodies 101 of the plurality of terminals 10, and the plurality of plug-in ends 102 and the connecting end 103 are exposed from the terminal insulating body 11. The conductive colloid 12 is arranged on one side of the terminal insulating body 11, and the surface of the conductive colloid 12 close to the terminal body 101 of each terminal 10 is parallel to the terminal body 101, so that the SI performance of the board-end connector using this terminal structure 1 can be improved.

[0012] In this embodiment, the terminal body 101 includes a first body portion 101a and a second body portion 101b, the first body portion 101a is connected to the second body portion 101b, the plug end portion 102 is connected to the first body portion 101a, and the connection end portion 103 is connected to the second body portion 101b. An angle is formed between the extension direction of the first body portion 101a and the extension direction of the second body portion 101b, the first body portion 101a is bent and tilted relative to the second body portion 101b, the surface of the terminal body 101 of the conductive colloid 12 close to each terminal 10 is parallel to the terminal body 101, and the surface of the terminal body 101 of the conductive colloid 12 close to each terminal 10 has a first surface 12a and a second surface 12b, the first surface 12a corresponds to the first body portion 101a and is parallel to each other, and the second surface 12b corresponds to the second body portion 101b and is parallel to each other. The shape of the terminal body 101 is only one embodiment of the present application and should not be limited thereto.

[0013] In one embodiment, the terminal insulating body 11 has a plurality of grooves 111 arranged at intervals, the plurality of grooves 111 are located on the surface of the terminal insulating body 11 adjacent to the conductive colloid 12, and the plurality of grooves 111 correspond to parts of the plurality of terminals 10. The conductive colloid 12 has a plurality of convex portions 121 arranged at intervals, the plurality of convex portions 121 are located on the surface of the conductive colloid 12 adjacent to the terminal insulating body 11, and the plurality of convex portions 121 are respectively arranged in the corresponding grooves 111, so that the plurality of convex portions 121 correspond to parts of the plurality of terminals 10. The terminal 10 includes a plurality of signal terminals 10c and a plurality of ground terminals 10d, at least one signal terminal 10c is arranged between two adjacent ground terminals 10d, a plurality of grooves 111 of the terminal insulating body 11 respectively correspond to the plurality of ground terminals 10d, so a plurality of convex portions 121 of the conductive colloid 12 respectively correspond to the plurality of ground terminals 10d, and a distance between an end surface of each convex portion 121 away from the conductive colloid 12 and the corresponding ground terminal 10d is smaller than a distance between a surface of the conductive colloid 12 adjacent to the terminal insulating body 11 and the signal terminal 10c, that is, the conductive colloid 12 is extended by the convex portion 121, so that the distance between the conductive colloid 12 and the ground terminal 10d is smaller than the distance between the conductive colloid 12 and the signal terminal 10c, thereby achieving both electromagnetic shielding and conductivity.

[0014] See also Figure 4 , Figure 5 and Figure 6, which is a stereoscopic view and exploded view of the board-end connector of the second embodiment of the present application; as shown in the figure, the board-end connector 2 of this embodiment includes a connector body 21 and two terminal structures 1, the connector body 21 has a terminal accommodating groove 211, a plug-in groove 212 and a positioning member 213, the plug-in groove 212 and the terminal accommodating groove 211 are connected, the terminal accommodating groove 211 has an accommodating opening 2110, the plug-in groove 212 has a plug-in opening 2120, the plug-in opening 2120 is opposite to the accommodating opening 2110, and the accommodating opening 2110 and the plug-in opening 2120 are located on two opposite end faces of the connector body 21. The positioning member 213 is located in the terminal accommodating groove 211, and the two ends of the positioning member 213 are respectively connected to the two opposite side walls of the terminal accommodating groove 211. Each terminal structure 1 is the terminal structure of the first embodiment, and the two terminal structures 1 are arranged in the connector body 21, and each terminal structure 1 is placed in the terminal accommodating groove 211 and the plug-in groove 212 from the accommodating opening 2110. The terminal insulating body 11 and the conductive colloid 12 of each terminal structure 1 are located in the terminal receiving groove 211 , and the conductive colloid 12 is adjacent to the positioning member 213 . The plug-in ends 102 of the plurality of terminals 10 of each terminal structure 1 are located in the plug-in groove 212 .

[0015] In one embodiment, the two ends of the terminal insulating body 11 of each terminal structure 1 respectively have first fixing protrusions 112, and the two first fixing protrusions 112 are located on the surface of the positioning member 213 adjacent to the conductive colloid 12. Figure 7 , which is a cross-sectional view of the terminal structure, connector body and elastic snap-fit ​​assembly of the second embodiment of the present application; as shown in the figure, the board-end connector 2 also includes two elastic snap-fit ​​components 22, and the two elastic snap-fit ​​components 22 are snapped at both ends of the positioning component 213. The elastic snap-fit ​​components 22 fix the two first fixing protrusions 112 located at the same end to the positioning component 213, and each conductive colloid 12 is fixed to the positioning component 213 through the terminal body 101 to fix the two terminal structures 1 to the connector body 21.

[0016] Each elastic fastener 22 has two fixed spring arms 221 and two hooks 222. The two fixed spring arms 221 are opposite to each other, one end of the two fixed spring arms 221 is connected, and the two hooks 222 are respectively disposed at the other end of the two fixed spring arms 221. When the elastic fastener 22 is disposed on the positioning member 213 from the accommodating opening 2110 of the terminal accommodating groove 211, the two fixed spring arms 221 respectively press against the first fixed protrusions 112 located on the two opposite surfaces of the positioning member 213, and the two hooks 222 respectively abut against the surface of the positioning member 213 close to the plug-in groove 212, so that the two fixed spring arms 221 of the elastic fastener 22 clamp the two first fixed protrusions 112 on the positioning member 213, and the terminal body 101 of each terminal structure 1 fixes the conductive colloid 12 on the positioning member 213, thereby fixing the two terminal structures 1 in the connector body 21. In one embodiment, both ends of the positioning member 213 are respectively provided with a slot 2131, and each elastic fastening member 22 can be fastened in the slot 2131 to prevent the elastic fastening member 22 from sliding on the positioning member 213, and to align the surface of each elastic fastening member 22 close to the accommodating opening 2110 with the surface of the positioning member 213 close to the accommodating opening 2110. The elastic fastening member 22 of this embodiment is made of metal or plastic.

[0017] In one embodiment, the two ends of the conductive colloid 12 of each terminal structure 1 respectively have a second fixing protrusion 122, and each second fixing protrusion 122 is located between the corresponding first fixing protrusion 112 and the positioning member 213, thereby ensuring that there is no gap between the first fixing protrusion 112 and the positioning member 213, ensuring that the conductive colloid 12 can be fixed on the positioning member 213.

[0018] In one embodiment, the positioning member 213 has a plurality of first positioning portions 2132, and the plurality of first positioning portions 2132 are respectively located on the surface of the positioning member 213 adjacent to the conductive colloid 12. The conductive colloid 12 of each terminal structure 1 has a plurality of second positioning portions 123, and the plurality of second positioning portions 123 are located on the surface of the conductive colloid 12 away from the terminal insulating body 11. Please refer to Figure 8, which is a partial stereoscopic view of the board-end connector of the second embodiment of the present application; as shown in the figure, when the terminal structure 1 is arranged in the terminal receiving groove 211, a plurality of second positioning portions 123 are respectively arranged at the corresponding first positioning portions 2132. The shape of the cross section of the first positioning portion 2132 is consistent with the shape of the cross section of the second positioning portion 123, and the cross section of the first positioning portion 2132 and the cross section of the second positioning portion 123 are parallel to the surface of the connector body 21 having the receiving opening 2110. In this embodiment, the first positioning portion 2132 is a groove, and the second positioning portion 123 is a convex part. The width of the end of the second positioning portion 123 close to the conductive colloid 12 is smaller than the width of the end of the second positioning portion 123 away from the conductive colloid 12, which also means that the opening width of the first positioning portion 2132 close to the conductive colloid 12 is smaller than the opening width of the first positioning portion 2132 away from the conductive colloid 12. The second positioning portion 123 is slidably connected to the first positioning portion 2132, and the second positioning portion 123 cannot be separated from the first positioning portion 2132 in a direction perpendicular to the surface of the positioning member 213 adjacent to the conductive colloid 12. Of course, the first positioning portion 2132 can also be a convex part, and the second positioning portion 123 can also be a concave part.

[0019] In one embodiment, the terminal accommodating groove 211 has a plurality of first snap-fitting portions 2111, which are disposed on two side walls of the terminal accommodating groove 211 relative to the positioning member 213, and the terminal insulating body 11 of each terminal structure 1 has a plurality of second snap-fitting portions 113, which are located on the surface of the terminal insulating body 11 away from the conductive colloid 12. When each terminal structure 1 is disposed in the terminal accommodating groove 211, the plurality of second snap-fitting portions 113 of the terminal insulating body 11 of each terminal structure 1 are respectively snap-fitted with the corresponding first snap-fitting portions 2111 to fix each terminal structure 1 in the terminal accommodating groove 211. In this embodiment, the first snap-fitting portion 2111 is a hole, and the second snap-fitting portion 113 is a convex part.

[0020] In one embodiment, please refer to Fig. 9 , which is Figure 42 is a cross-sectional view along the line BB' in FIG. 2; as shown in the figure, the board-end connector 2 also includes a shell 23, which is disposed on the connector body 21 and has a first opening 231 and a second opening 232. The first opening 231 corresponds to the plug-in opening 2120 of the plug-in slot 212, and the second opening 232 corresponds to the accommodating opening 2110 of the terminal accommodating slot 211. The shell 23 has two snap-on springs 233, each of which protrudes from the inner surface of the shell 23 and extends toward the first opening 231. The connector body 21 has two first snap-on grooves 214. When the connector body 21 is disposed on the shell 23, each snap-on spring 233 is located in the corresponding first snap-on groove 214, and one end of the snap-on spring 233 close to the first opening 231 abuts against the side wall of the first snap-on groove 214 close to the first opening 231, thereby preventing the connector body 21 from being separated from the second opening 232 of the shell 23. In one embodiment, the shell 23 further has two clearance openings 234, one end of each snap spring piece 233 and the corresponding clearance opening 234 are away from the side of the first opening 231, and each snap spring piece 233 is located in the corresponding clearance opening 234. When the connector body 21 is installed on the shell 23, each snap spring piece 233 is squeezed by the connector body 21 and moves into the corresponding clearance opening 234. In other words, the clearance opening 234 provides space for the snap spring piece 233 to move, thereby preventing the snap spring piece 233 from affecting the installation of the connector body 21.

[0021] Please also read Fig.10 , which is Figure 4 2 is a cross-sectional view along the C-C' line in FIG. 2; as shown in the figure, the housing 23 also has a latch 235, which is located on the side of the first opening 231 and extends toward the second opening 232. The connector body 21 has a second latch groove 215, which is located on one side of the plug opening 2120 of the plug slot 212. When the connector body 21 is disposed in the housing 23, the latch 235 is disposed in the second latch groove 215 and abuts against the side wall of the second latch groove 215 away from the first opening 231, preventing the connector body 21 from being separated from the first opening 231.

[0022] In one embodiment, the board-end connector 2 further includes a circuit board 24, which is disposed in the housing 23 and is located on one side of the surface of the connector body 21 having the accommodating opening 2110. The circuit board 24 has a plurality of contact pads 241 arranged at intervals, and the plurality of connection ends 103 of the plurality of terminals 10 of each terminal structure 1 are electrically connected to the plurality of contact pads 241 of the circuit board 24. The connector body 21 has a positioning column 216, which is located on the surface of the connector body 21 having the accommodating opening 2110. The circuit board 24 has a positioning hole 242. When the circuit board 24 is disposed in the housing 23, the positioning column 216 is disposed in the positioning hole 242, so that the plurality of connection ends 103 can be accurately electrically connected to the plurality of contact pads 241. The housing 23 also has a plurality of plug-ins 236, which are located at the periphery of the second opening 232. The circuit board 24 has a plurality of plug-ins 243, and the plurality of plug-ins 236 are respectively inserted into the corresponding plug-ins 243, so that the housing 23 is fixed to the circuit board 24.

[0023] In summary, the present application provides a terminal structure and a board-end connector, which improves the SI performance of the board-end connector using the terminal structure of the present application by making the surface of the conductive colloid close to the terminal body parallel to the terminal body.

[0024] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0025] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A terminal structure, It is characterized in that include: A plurality of terminals, each of the terminals having a terminal body, a plug-in end and a connecting end, wherein the plug-in end and the connecting end are arranged at two ends of the terminal body; A terminal insulating body, covering the plurality of terminal bodies of the plurality of terminals; The conductive colloid is arranged on one side of the terminal insulating body, and the surface of the conductive colloid close to the terminal body is parallel to the terminal body.

2. The terminal structure according to claim 1, It is characterized in that The terminal body includes a first body portion and a second body portion, the first body portion is connected to the second body portion, the plug-in end portion is connected to the first body portion, the connecting end portion is connected to the second body portion, and the first body portion is inclined relative to the second body portion; the surface of the conductive colloid close to the terminal body has a first surface and a second surface, the first surface corresponds to the first body portion and is parallel to each other, and the second surface corresponds to the second body portion and is parallel to each other.

3. The terminal structure according to claim 1, It is characterized in that The terminal insulating body has a plurality of grooves arranged at intervals, the plurality of grooves are located on the surface of the terminal insulating body adjacent to the conductive colloid, and correspond to a portion of the plurality of terminals; the conductive colloid has a plurality of convex portions arranged at intervals, the plurality of convex portions are located on the surface of the conductive colloid adjacent to the terminal insulating body, and the plurality of convex portions are respectively arranged in the corresponding grooves.

4. The terminal structure according to claim 3, It is characterized in that The multiple terminals include multiple signal terminals and multiple ground terminals, the multiple grooves correspond to the multiple ground terminals, and the distance between the end surface of each protrusion away from the conductive colloid and the corresponding ground terminal is smaller than the distance between the surface of the conductive colloid adjacent to the terminal body and the signal terminal.

5. A board-end connector, It is characterized in that include: The connector body has a terminal accommodating groove, a plug-in groove and a positioning member, wherein the plug-in groove is communicated with the terminal accommodating groove, the terminal accommodating groove has an accommodating opening, the plug-in groove has a plug-in opening, the positioning member is located in the terminal accommodating groove, and its two ends are respectively connected to two opposite side walls of the terminal accommodating groove; The two terminal structures as described in any one of claims 1 to 4 are arranged in the connector body, the terminal insulation body and the conductive colloid of each terminal structure are located in the terminal accommodating groove, the conductive colloid is adjacent to the positioning piece, and the multiple plug-in ends of the multiple terminals of each terminal structure are located in the plug-in groove.

6. The board connector according to claim 5, It is characterized in that The positioning member has a plurality of first positioning portions, and the plurality of first positioning portions are respectively located on the surface of the positioning member adjacent to the conductive colloid; the conductive colloid of each terminal structure also has a plurality of second positioning portions, and the plurality of second positioning portions are located on the surface of the conductive colloid away from the terminal insulating body, and the plurality of second positioning portions are respectively arranged on the corresponding first positioning portions.

7. The board connector according to claim 6, It is characterized in that The shape of the cross section of the first positioning portion matches the shape of the cross section of the second positioning portion, and the cross sections of the first positioning portion and the second positioning portion are parallel to a surface of the connector body having the accommodating opening.

8. The board connector according to claim 7, It is characterized in that The first positioning portion is a groove, and the opening width of the first positioning portion close to the conductive colloid is smaller than the opening width of the first positioning portion away from the conductive colloid; the second positioning portion is a convex part, and the width of one end of the second positioning portion close to the conductive colloid is smaller than the width of one end of the second positioning portion away from the conductive colloid.

9. The board connector according to claim 5, It is characterized in that The terminal accommodating groove has a plurality of first snap-on parts, which are arranged on the two side walls of the terminal accommodating groove relative to the positioning member; the terminal insulating body of each terminal structure has a plurality of second snap-on parts, which are located on the surface of the terminal insulating body away from the conductive colloid, and the plurality of second snap-on parts are respectively snapped with the corresponding first snap-on parts.

10. The board connector according to claim 5, It is characterized in that The device also includes a shell, which is disposed on the connector body and has a first opening and a second opening. The first opening corresponds to the plug-in opening, and the second opening corresponds to the accommodating opening.

11. The board connector according to claim 10, It is characterized in that The shell also has two snap-on springs, each of which protrudes from the inner surface of the shell and extends toward the first opening; the connector body has two first snap-on grooves, each of which is located in the corresponding first snap-on groove, and one end of the snap-on spring close to the first opening abuts against the side wall of the first snap-on groove close to the first opening.

12. The board connector according to claim 11, It is characterized in that The shell also has a snap-on component, which is located on the side of the first opening and extends toward the second opening; the connector body also has a second snap-on groove, which is located on one side of the plug-in opening, and the snap-on component is located in the second snap-on groove and abuts against the side wall of the second snap-on groove away from the first opening.

13. The board connector according to claim 10, It is characterized in that It also includes a circuit board, which is arranged in the shell and is located on one side of the surface of the connector body having the accommodating opening. The circuit board has a plurality of contact pads arranged at intervals, and the plurality of connecting ends of the plurality of terminals of each terminal structure are electrically connected to the plurality of contact pads.

14. The board connector according to claim 13, It is characterized in that The connector body further has a positioning column, and the positioning column is located on the surface of the connector body having the accommodating opening; the circuit board further has a positioning hole, and the positioning column is arranged in the positioning hole.

15. The board connector according to claim 13, It is characterized in that The shell also has a plurality of plug-ins, which are located at the periphery of the second opening; the circuit board has a plurality of plug-ins, which are respectively inserted into the corresponding plug-ins.

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