Orthogonal connector

Abstract

The invention relates to the field of electric connectors, in particular to an orthogonal connector, and aims to solve the problems that the transmission density of an existing orthogonal connector is affected when the width of the matching end of a grounding terminal on the existing orthogonal connector is large, and the signal shielding effect between differential signal pairs is affected when the width of the matching end of the grounding terminal on the existing orthogonal connector is small. And the transmission density and the signal shielding effect on the orthogonal connector cannot be considered at the same time. The orthogonal connector comprises a plurality of wafers, and each wafer comprises signal pairs and grounding terminals which are alternately arranged; the ends of two signal terminals included in the signal pair are provided with bent and overhung signal insertion sections, the orthogonal connector further comprises a shielding frame electrically connected with the grounding terminals, the shielding frame is provided with shielding frame holes for the signal insertion sections to penetrate through, the shielding frame is provided with grounding pieces extending in the same direction as the signal insertion sections, and the shielding frame holes are provided with shielding holes for the signal insertion sections to penetrate through. The corresponding signal pairs on each wafer in the side-by-side direction of the wafers form a signal pair row, and the grounding piece is located on the side of each signal pair of the signal pair row in the side-by-side direction.

Description

Technical Field

[0001] The invention belongs to the field of electrical connectors, and in particular relates to an orthogonal connector. Background Art

[0002] An orthogonal connector is a connector widely used in communication links, which can eliminate the backplane in the transmission link, thereby making the transmission link shorter to achieve lower loss transmission. The existing orthogonal connector can refer to the Chinese invention patent with the authorization announcement number CN112636046B. The orthogonal connector disclosed in the invention patent includes a shell and a plurality of chips arranged in the shell, and each chip includes an insulating frame and a signal differential pair and a ground terminal arranged on the insulating frame. The signal differential pairs are arranged at intervals on the chip, specifically including signal pairs; the ground terminal is arranged in the interval between the differential signal pairs to achieve shielding of the differential signal pairs. The signal terminal and the ground terminal both include a mounting end for mounting on the backplane and a mating end for mating with an adapter connector. There is a bending portion between the mounting end and the mating end so that the width direction of the mounting end is perpendicular to the width direction of the mating end, thereby achieving an orthogonal conversion between the mounting end and the mating end.

[0003] However, the width direction of the mating ends of the ground terminals and signal terminals on this chip is actually in the same direction as the thickness direction of the chip. For the ground terminal, if the width of its mating end is large, the thickness of the chip will increase, which will affect the transmission density of the orthogonal connector. If the width of the mating end is small, the shielding area between the differential signal pairs will be insufficient, which will affect the signal shielding effect between the differential signal pairs. Summary of the invention

[0004] The purpose of the present invention is to provide an orthogonal connector to solve the technical problem that the transmission density and signal shielding effect of the orthogonal connector cannot be taken into account at the same time, because the ground terminal on the existing orthogonal connector will affect the transmission density of the orthogonal connector when the width of the mating end is large, and will affect the signal shielding effect between the differential signal pairs when the width is small, resulting in the technical problem that the transmission density and signal shielding effect on the orthogonal connector cannot be taken into account at the same time.

[0005] The present invention adopts the following technical solution: An orthogonal connector comprises a plurality of chips, which are arranged side by side in a thickness direction, and each chip comprises a signal pair and a grounding terminal which are arranged alternately; the ends of the two signal terminals included in the signal pair have a bent and overhanging signal plug-in section, and the width direction of the signal plug-in section and the side-by-side direction of the two signal plug-in sections of the same signal pair are both in the same direction as the thickness direction of the chip; the orthogonal connector also comprises a shielding frame which is electrically conductive with the grounding terminal, the shielding frame is provided with a shielding frame hole for the signal plug-in section to pass through, and a grounding piece which extends in the same direction as the signal plug-in section is installed on the shielding frame, and the signal pairs corresponding to each other in the side-by-side direction of the chips on each chip form a signal pair row, and the grounding piece is located on the side of each signal pair in the side-by-side direction of the signal pair row.

[0006] Furthermore, the grounding piece is connected to the shielding frame by interference fit.

[0007] Furthermore, the shielding frame is provided with an insertion hole, and the grounding member is provided with an insertion end for interference fit with the insertion hole. The insertion end is gourd-shaped and is inserted into the insertion hole with the small end facing the insertion hole.

[0008] Furthermore, the shielding frame is provided with an insertion hole, and the grounding member is provided with an insertion end for interference fit with the insertion hole, and the insertion end is in a fisheye shape.

[0009] Furthermore, the shielding frame and the grounding terminal are electrically connected by plugging connection in the extension direction of the signal plug-in section.

[0010] Furthermore, a first fixing groove is provided on the shielding frame, and the first fixing groove is interference-fitted with the grounding terminal.

[0011] Furthermore, an interference protrusion is provided on at least one of the groove wall of the first fixing groove and the grounding terminal.

[0012] Furthermore, a plurality of interference protrusions are provided on the groove wall of the first fixing groove and / or a plurality of interference protrusions are provided on the grounding terminal.

[0013] Furthermore, the grounding piece is a long strip of sheet with a width direction in the same direction as the thickness direction of the wafer.

[0014] Furthermore, the orthogonal connector further comprises a fixed end shielding seat, which is mounted on the other end of the grounding terminal and is electrically conductive.

[0015] Beneficial effects: The present invention proposes a new orthogonal connector. The orthogonal connector of the present invention includes a plurality of chips arranged side by side along the thickness direction of the chips, and the signal pairs and ground terminals on each chip are arranged alternately to achieve shielding between adjacent signal pairs on the chip. The signal pair is specifically composed of two signal terminals, and the ends of the signal terminals have a bent and overhanging signal plug-in section, and the width direction of the signal plug-in section and the side-by-side direction of the two signal plug-in sections of the same signal pair are in the same direction as the thickness direction of the chip, so as to meet the connection requirements of the orthogonal connector for orthogonal connection. The orthogonal connector also includes a shielding frame electrically conductive with the grounding terminal, and a shielding frame hole is provided on the shielding frame for the signal plug-in section to pass through. A grounding piece extending in the same direction as the signal plug-in section is installed on the shielding frame, and the signal pairs corresponding to the side-by-side direction of the chips on each chip form a signal pair row, and the grounding piece is located on the side of each signal pair in the side-by-side direction of the signal pair row, so that the grounding return part on the orthogonal connector extends to the signal plug-in section, thereby making the signal plug-in section of the signal pair have a better shielding effect, and the crosstalk performance is further improved. The orthogonal connector described in the present invention is provided with a shielding frame electrically connected to the grounding terminal at one end of the grounding terminal corresponding to the signal plug-in section, and an independent grounding piece is electrically connected to the shielding frame to achieve shielding between the signal plug-in sections of any two groups of signal pairs. In this way, the installation position of the grounding piece is no longer affected by the chip, but can be set on the shielding frame according to actual needs; therefore, the setting position of the grounding piece becomes relatively flexible, and the gap between adjacent signal pairs on different chips can be effectively utilized. Therefore, the above structure effectively utilizes the space on the orthogonal connector while meeting the shielding requirements. Therefore, the orthogonal connector can avoid the increase of chip thickness while ensuring the shielding effect, and effectively takes into account the transmission density and signal shielding effect on the orthogonal connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 An off-axis view of an embodiment of the orthogonal connector of the present invention; Figure 2 for Figure 1 External view of the shaft without the connector housing; Figure 3 for Figure 1 Schematic diagram of the internal section; Figure 4 for Figure 2 An off-axis view of the first wafer; Figure 5 for Figure 2 An off-axis view of the second wafer; Figure 6 for Figure 4 The off-axis view of the signal module; Figure 7 for Figure 2Off-axis view of the middle shield frame; Figure 8 for Figure 2 An off-axis view of the middle grounding piece; Fig. 9 It is a schematic diagram of the coordination between the grounding piece and the insertion hole at the hoist end; Fig.10 It is a schematic diagram of the matching between the grounding piece with fisheye end and the insertion hole; Fig.11 It is a schematic diagram of the cooperation between the first fixing groove and the grounding terminal when an interference protrusion is provided on the groove wall of the first fixing groove; Fig.12 It is a schematic diagram of the cooperation between the first fixing groove and the grounding terminal when an interference protrusion is provided on the grounding terminal; Fig.13 for Figure 1 The out-of-axis view of the shielding seat at the middle fixed end; The names of the components corresponding to the corresponding reference numerals in the figure are: 1. connector housing; 2. first chip; 3. second chip; 4. insulating substrate; 5. signal terminal; 6. grounding terminal; 7. fisheye connection structure; 8. signal plug-in section; 9. bending part; 10. routing section; 11. shielding frame; 12. grounding piece; 13. gourd end; 14. fisheye end; 15. insertion hole; 16. first fixing groove; 17. interference protrusion; 18. fixed end shielding seat; 19. through hole; 20. second fixing groove; 21. shielding frame hole; 22. square frame; 23. transverse skeleton; 24. spacer side wall; 25. signal module. DETAILED DESCRIPTION

[0017] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0018] The principle of the orthogonal connector of the present invention is as follows: An orthogonal connector includes a plurality of wafers arranged side by side along the thickness direction of the wafers, and the signal pairs and ground terminals on each wafer are arranged alternately to achieve shielding between adjacent signal pairs on the wafer. The signal pair is specifically composed of two signal terminals, and the ends of the signal terminals have a bent and overhanging signal plug-in section, and the width direction of the signal plug-in section and the side-by-side direction of the two signal plug-in sections of the same signal pair are in the same direction as the thickness direction of the wafer, so as to meet the connection requirements of the orthogonal connector for orthogonal connection.

[0019] The orthogonal connector also includes a shielding frame electrically connected to the grounding terminal, and a shielding frame hole is provided on the shielding frame for the signal plug-in section to pass through. A grounding piece extending in the same direction as the signal plug-in section is installed on the shielding frame, and the corresponding signal pairs on each chip in the side-by-side direction of the chips form a signal pair row, and the grounding piece is located on the side of each signal pair in the side-by-side direction of the signal pair row, so that the ground return part on the orthogonal connector extends to the signal plug-in section, thereby achieving a better shielding effect on the signal plug-in section of the signal pair, and the crosstalk performance is further improved.

[0020] The orthogonal connector described in the present invention is provided with a shielding frame electrically connected to the grounding terminal at one end of the grounding terminal corresponding to the signal plug-in section, and an independent grounding piece is electrically connected to the shielding frame to achieve shielding between the signal plug-in sections of any two groups of signal pairs. In this way, the installation position of the grounding piece is no longer affected by the chip, but can be set on the shielding frame according to actual needs; therefore, the setting position of the grounding piece becomes relatively flexible, and the gap between adjacent signal pairs on different chips can be effectively utilized. Therefore, the above structure effectively utilizes the space on the orthogonal connector while meeting the shielding requirements. Therefore, the orthogonal connector can avoid the increase of chip thickness while ensuring the shielding effect, and effectively takes into account the transmission density and signal shielding effect on the orthogonal connector.

[0021] Embodiments of the orthogonal connector of the present invention: An orthogonal connector, the structure of which can refer to Figure 1-3 The orthogonal connector includes a connector housing 1 and a plurality of chips arranged in the connector housing 1 and arranged side by side along the thickness direction thereof. The chips can be referred to as Figure 4 , Figure 5 As shown, it includes an insulating substrate 4 and signal pairs arranged in parallel on the insulating substrate 4. It is well known to those skilled in the art that in this embodiment, the parallel direction refers to the arrangement direction along the thickness direction of the chip, and the parallel direction refers to the arrangement direction perpendicular to the thickness direction of the chip. Each signal pair on the chip is provided with a ground terminal 6 on the adjacent side along the parallel direction of the signal pair to achieve shielding between any two pairs of signal pairs on the chip. The signal terminal 5 and the ground terminal 6 on the same chip together constitute as shown in FIG. Figure 6 The signal module 25 is shown.

[0022] The signal pair consists of two signal terminals 5. The specific structure of the signal terminal 5 and the ground terminal 6 can be referred to Figure 6As shown. One end of the signal terminal 5 is provided with a fisheye connection structure 7 for connection with the device; the other end protrudes out of the insulating base 4 to form a signal plug-in section 8 for plugging with the adapter connector. The portion of the signal terminal 5 fixed on the insulating base 4 is a routing section 10, and there is a bending portion 9 between the signal plug-in section 8 and the routing section 10, so that the width direction of the signal plug-in section 8 and the side-by-side direction of the signal plug-in section 8 of the same signal pair are in the same direction as the thickness direction of the chip, thereby meeting the orthogonal connection requirements of the orthogonal connector.

[0023] The end of the ground terminal 6 away from the signal plug section 8 is also provided with a fisheye connection structure 7, and the end corresponding to the signal plug section 8 is electrically connected to the shielding frame 11 of the orthogonal connector. Figure 7 , the shielding frame 11 has a plurality of shielding frame holes 21 corresponding to the signal pairs so that the signal plug-in sections 8 of the signal pairs can pass through respectively. A grounding piece 12 electrically connected to the shielding frame 11 is arranged on the edge of the hole of the shielding frame hole 21 facing away from the grounding terminal 6. The corresponding signal pairs on each chip in the side-by-side direction of the chips form a signal pair row, and the grounding piece 12 is specifically arranged at the adjacent side position of any signal pair in the same row to achieve the shielding effect between any two adjacent signal pairs in the same row. Specifically, for the signal pair located at the edge of a row on the orthogonal connector, the grounding piece 12 can be arranged only on the side of its signal plug-in section 8 facing away from the edge of the chip, or the grounding piece 12 can be arranged on both adjacent sides of its signal plug-in section 8 along its arrangement direction. For other signal pairs, the grounding piece 12 is arranged on both sides of its signal plug-in section 8 along the arrangement direction. In this embodiment, there are two arrangements of the signal terminals 5 and the grounding piece 12 in the same row of the orthogonal connector, namely ABAB...ABAB and ABABA...ABABA. Correspondingly, the wafer is specifically divided into a first wafer 2 and a second wafer 3 according to the relative arrangement relationship with the grounding member 12. The signal plug-in section 8 of the signal pair on the first wafer 2 and the grounding member 12 adopt the relative arrangement mode of ABAB...ABAB, and the signal plug-in section 8 of the signal pair on the second wafer 3 and the grounding member 12 adopt the arrangement mode of BABA...BABA, wherein A represents the signal plug-in section 8 of the signal pair, and B represents the grounding member 12. The first wafer 2 and the second wafer 3 are alternately arranged in the wafer thickness direction, so that the signal plug-in section 8 of the signal pair on the orthogonal connector and the grounding member 12 form an array.

[0024] The structure of the grounding member 12 can be referred to Figure 8 As shown, it is specifically a long strip body whose width direction is in the same direction as the thickness direction of the wafer. In this way, the grounding shielding effect can be guaranteed as much as possible. Of course, the aforementioned grounding member 12 can also be a grounding conductive sheet or other similar structure. The grounding conductive sheet can be installed on the shielding frame 11 by welding or interference fit, and its side direction is set toward the signal pair in the same row.

[0025] The key to this embodiment is that the grounding member 12 is connected to the shielding frame 11 by interference-fitting. Such a setting can greatly facilitate the assembly of the grounding member 12, thereby improving the assembly efficiency and production efficiency of the orthogonal connector. In order to achieve the interference-fitting connection between the two, reference can be made to Fig. 9 As shown, the shielding frame 11 may be provided with an insertion hole 15, and the grounding member 12 may be provided with an insertion end for interference fit with the insertion hole 15, so as to ensure the reliability of the interference fit effect and improve the assembly efficiency and production efficiency of the orthogonal connector. Figure 7 As shown, it specifically includes a square frame 22 and a plurality of transverse frames 23 arranged in the square frame 22. The gap between the transverse frames 23 and the square frame 22, or the gap between the transverse frames 23, is provided with a plurality of spacer side walls 24 to separate the aforementioned shielding frame hole 21 on the transverse frames 23. The insertion hole 15 is provided on the spacer side wall 24 and extends in the same direction as the shielding frame hole 21. The insertion hole 15 can be a blind hole or a through hole. In this embodiment, the insertion hole 15 is preferably provided as a blind hole so as to limit the assembly position of the grounding member 12 in the plug-in direction. This makes it easy to ensure that the protruding lengths of the grounding members 12 remain consistent with each other. The plug-in end preferably adopts Fig. 9 The gourd-shaped gourd end 13 shown in FIG. Fig.10 As shown, the plug-in end can also be preferably used Fig.10 The fisheye end 14 in the shape of a fisheye is shown in the figure. When the insertion end of the grounding member 12 is a gourd end 13, the gourd end 13 is inserted into the insertion hole 15 with the small end facing the insertion hole 15, so as to reduce the insertion force of the grounding member 12 into the aforementioned insertion hole 15, so as to further facilitate assembly. Of course, the aforementioned grounding member 12 can also be fixed to the shielding frame 11 in the form of welding. Or the grounding member 12 is still inserted into the insertion hole 15 of the shielding frame 11, and the grounding member 12 is fixedly bonded to the insertion hole 15 by conductive glue.

[0026] The shielding frame 11 and the grounding terminal 6 are electrically conductive by means of a plug-in connection in the extension direction of the signal plug-in section 8, so that disassembly and assembly are convenient, and the electrical conduction effect is reliable. In addition, welding can also be used between the shielding frame 11 and the grounding terminal 6 to achieve the effects of fixation and electrical conduction. The grounding terminal 6 is specifically in the form of a sheet, and a first fixing groove 16 is provided on the shielding frame 11 corresponding to the sheet-shaped grounding terminal 6. The grounding terminal 6 is interference-fitted into the first fixing groove 16 so that the shielding frame 11 is fixed and conductive with the grounding terminal 6. This greatly facilitates the installation of the shielding frame 11, thereby reducing the assembly cost of the orthogonal connector and further improving the production efficiency of the orthogonal connector.

[0027] Based on the above structure, you can refer to Fig.11 , Fig.12 As shown, an interference protrusion 17 may be provided on at least one of the groove wall of the first fixed groove 16 or the sheet body of the grounding terminal 6. Specifically, in this embodiment, an interference protrusion 17 may be provided on one side groove wall of the first fixed groove 16, and an insertion gap is left between the interference protrusion 17 and the other side groove wall. The grounding terminal 6 is specifically in the form of a sheet, and its sheet body is inserted into the insertion gap by interference. Alternatively, both sides of the groove wall of the first fixed groove 16 may be provided with interference protrusions 17, and the interference protrusions 17 on the two sides of the groove wall are arranged opposite to each other to leave a certain insertion gap, and the sheet body of the grounding terminal 6 is inserted into the insertion gap by interference. Alternatively, one side or both sides of the sheet body of the grounding terminal 6 may be provided with interference protrusions 17, and after the sheet body of the grounding terminal 6 is inserted into the first fixed groove 16, the interference protrusion 17 on the grounding terminal 6 is pressed against the groove wall of the first fixed groove 16 by interference. Alternatively, interference protrusions 17 may be provided on both the groove wall of the first fixing groove 16 and the surface of the sheet body of the grounding terminal 6. After the grounding terminal 6 is inserted into the first fixing groove 16, the interference protrusions 17 on the groove wall of the first fixing groove 16 are pressed against the flat part of the sheet body of the grounding terminal 6, and the interference protrusions 17 on the grounding terminal 6 are pressed against the flat part of the groove wall. The specific shape of the interference protrusions 17 can be set according to actual needs, such as the interference protrusions 17 can be single-sided protrusions, or double-sided or multi-sided protrusions; the shape of the interference protrusions 17 can be conventional geometric shapes such as semicircular, trapezoidal, punctured, etc.; the interference protrusions 17 can be a whole raised convex surface, or a protrusion protruding partially on a plane.

[0028] A plurality of interference protrusions 17 are provided on the groove wall of the first fixing groove, or on the grounding terminal, or on both. Specifically, two, three, or even more interference protrusions 17 can be provided. This can further ensure the fixed connection effect between the shielding frame 11 and the grounding spring sheet, so that the shielding frame 11 can be reliably held on the grounding spring sheet to ensure the reliability of the shielding effect.

[0029] The orthogonal connector further includes a fixed end shielding seat 18. The fixed end shielding seat 18 is mounted on the other end of the grounding terminal 6 and is electrically connected to the grounding terminal 6. Specifically, in this embodiment, reference may be made to Fig.13As shown, the fixed shielding seat is an angular plate-like structure with an L-shaped cross-section. A through hole 19 is provided on one of the side walls of the fixed shielding seat to allow the fisheye connection structure 7 of the signal terminal 5 and the grounding terminal 6 to pass through. The fixed end shielding seat 18 is fixedly connected to the end of the grounding terminal 6 and electrically conductive to achieve the shielding effect at the connection between the orthogonal connector and the adapter device. As mentioned above, the grounding terminal 6 is specifically in the form of a sheet, and a second fixed groove 20 is provided on the fixed end shielding seat 18. The second fixed groove 20 and the grounding terminal 6 are interference-fitted to ensure the shielding effect of the fixed end shielding seat 18. In this embodiment, a protrusion structure similar to the interference protrusion 17 located between the first fixed groove 16 and the grounding terminal 6 as described above can be provided between the second fixed groove 20 and the grounding terminal 6, and the specific structure will not be repeated here.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the contents of the description and drawings of the present invention should also be included in the protection scope of the present invention.

Claims

1. An orthogonal connector, characterized in that: The orthogonal connector comprises a plurality of chips, which are arranged side by side in a thickness direction, and each chip comprises a signal pair and a grounding terminal (6) arranged alternately; the ends of the two signal terminals (5) included in the signal pair have a bent and overhanging signal plug-in section (8), and the width direction of the signal plug-in section (8) and the side-by-side direction of the two signal plug-in sections (8) of the same signal pair are both in the same direction as the thickness direction of the chip; the orthogonal connector also comprises a shielding frame (11) electrically connected to the grounding terminal (6), the shielding frame (11) is provided with a shielding frame hole (21) for the signal plug-in section (8) to pass through, and a grounding member (12) extending in the same direction as the signal plug-in section (8) is installed on the shielding frame (11), and the signal pairs corresponding to each other in the side-by-side direction of the chips on each chip form a signal pair row, and the grounding member (12) is located on the side of each signal pair in the side-by-side direction of the signal pair row.

2. The orthogonal connector according to claim 1, characterized in that: The grounding piece (12) is connected to the shielding frame (11) by interference fit.

3. The orthogonal connector according to claim 2, characterized in that: The shielding frame (11) is provided with an insertion hole (15), and the grounding piece (12) is provided with an insertion end for interference-fitting with the insertion hole (15), the insertion end being gourd-shaped and inserted into the insertion hole with the small end facing the insertion hole.

4. The orthogonal connector according to claim 2, characterized in that: The shielding frame (11) is provided with an insertion hole (15), and the grounding piece (12) is provided with an insertion end for interference-fitting with the insertion hole (15), and the insertion end is in a fisheye shape.

5. The orthogonal connector according to any one of claims 1 to 4, characterized in that: The shielding frame (11) and the grounding terminal (6) are electrically connected by means of a plug-in connection in the extension direction of the signal plug-in section.

6. The orthogonal connector according to claim 5, characterized in that: The shielding frame (11) is provided with a first fixing groove (16), and the first fixing groove (16) is interference-fitted with the grounding terminal (6).

7. The orthogonal connector according to claim 6, characterized in that: An interference protrusion (17) is provided on at least one of the groove wall of the first fixing groove (16) and the grounding terminal (6).

8. The orthogonal connector according to claim 7, characterized in that: A plurality of interference protrusions (17) are provided on the groove wall of the first fixing groove (16) and / or a plurality of interference protrusions (17) are provided on the grounding terminal (6).

9. The orthogonal connector according to any one of claims 1 to 4, characterized in that: The grounding piece (12) is a long strip-shaped sheet body whose width direction is in the same direction as the thickness direction of the wafer.

10. The orthogonal connector according to any one of claims 1 to 4, characterized in that: The orthogonal connector also includes a fixed end shielding seat (18), which is mounted on the other end of the grounding terminal (6) and is electrically conductive.

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