A qsfp-dd horizontal connector and an assembling process thereof

Abstract

This invention relates to a QSFP-DD horizontal connector and its assembly process. The connector includes a housing body and multiple terminal assemblies. Each terminal assembly includes multiple terminals, each with a plug end and a solder end. The solder end is fixed within the housing body and located at the lower end of the housing body. The housing body and terminal assemblies are provided with a limiting structure and a corrective structure. The limiting structure includes mutually adaptable limiting blocks, limiting grooves, and limiting holes, used to limit relative movement between terminal assemblies and between terminal assemblies and the housing body. The corrective structure includes multiple sliding blocks, sliding grooves, and hooks. The sliding blocks are equidistant from the solder ends and are neatly arranged within the sliding grooves. The hooks interlock and improve the coplanarity of the terminal assemblies. This invention ensures accurate and fixed installation of the terminal assemblies within the housing body through the limiting structure, effectively improving connection stability. The corrective structure further improves connection stability by enhancing the coplanarity of the solder ends.

Description

Technical Field

[0001] This invention relates to the field of connector technology, and more specifically, to a QSFP-DD horizontal connector and its assembly process. Background Technology

[0002] QSFP-DD, as a dual-density, four-channel, small form factor pluggable package, is widely used in high-speed data transmission scenarios. Horizontal connectors, due to their space-saving design and adaptability to high-density deployment requirements, are increasingly used in electronic devices such as optical modules. However, existing QSFP-DD horizontal connectors suffer from several technical drawbacks. Firstly, the lack of reliable limiting structures between the terminal assembly and the housing body, and between the terminal assemblies themselves, makes them prone to relative displacement, affecting connection stability. Secondly, controlling the coplanarity of the soldered terminals is difficult, leading to problems such as warping and misalignment, resulting in poor soldering, impacting signal transmission performance, and consequently reducing production efficiency and product yield. These issues limit the reliability and mass production of QSFP-DD horizontal connectors, necessitating a technical solution to address these problems. Summary of the Invention

[0003] The technical problems to be solved by the present invention are unstable connection, poor coplanarity and complex assembly. In view of the above-mentioned defects of the prior art, an assembly process for a QSFP-DD horizontal connector is provided.

[0004] The technical solution adopted by this invention to solve its technical problem is: A QSFP-DD horizontal connector is constructed, comprising a housing body and a plurality of terminal assemblies, wherein the interior of the housing body forms a receiving cavity, and the terminal assembly includes an insulating base and a plurality of terminals, the terminals being mounted in the receiving cavity via the insulating base; The housing body and the terminal assembly are provided with a limiting structure and a corrective structure. The limiting structure includes mutually adaptable limiting blocks, limiting grooves and limiting holes, and is used to limit the relative movement between the terminal assemblies and between the terminal assemblies and the housing body. The correction structure includes a sliding block, a sliding groove, and multiple hooks. The sliding block is arranged in the sliding groove, and the hooks engage with each other to improve the coplanarity of the terminal assembly.

[0005] Furthermore, the terminal assemblies are stacked in parallel, and from top to bottom are the first terminal assembly, the second terminal assembly, the third terminal assembly, and the fourth terminal assembly.

[0006] Furthermore, both the limiting structure and the corrective structure comprise two sets, which are respectively located on both sides of the outer shell body or the terminal assembly.

[0007] Furthermore, each of the terminals includes a plug-in end and a solder end, the plug-in end being located at the front end of the receiving cavity, and the solder end being bent relative to the plug-in end and arranged parallel to the lower end of the housing body, facing the opposite direction to the plug-in end.

[0008] Furthermore, the terminal assembly also includes a rivet base, with sliding blocks provided on both sides of the rivet base, and the distance from any of the sliding blocks to the welding end is equal.

[0009] Furthermore, the sliding groove is horizontally disposed on the inner side wall of the outer shell body, and the sliding blocks are sequentially arranged and embedded in the sliding groove so that the welding ends are coplanar.

[0010] Furthermore, the hook includes a first hook and a second hook, the first hook being disposed above the sliding groove, and the end of the first hook being bent toward the interior of the sliding groove.

[0011] Furthermore, the second hook is respectively provided on the sliding block, the first hook engages with the second hook, and is used to apply a pulling force to the terminal in the direction of the outer side of the outer shell body.

[0012] Furthermore, it also includes an adjusting tongue, which is located below the rivet seat of the first terminal assembly and is used to correct the coplanarity of the welded ends.

[0013] This invention also provides an assembly process for a QSFP-DD horizontal connector, comprising the following steps: S1. Rivet the plug-in end of the terminal in the preset material strip into the preset insulating base and the preset riveting base; S2. The welding end of the terminal is separated from the strip by a preset bending and cutting fixture, and the terminal is bent. S3. The preset grounding plates are spot-welded to the insulating base and the crimping base respectively to form a terminal assembly, wherein the terminal assembly includes a first terminal assembly, a second terminal assembly, a third terminal assembly and a fourth terminal assembly; S4. Rivet the fourth terminal assembly into the preset housing body; S5. Assemble the first terminal assembly, the second terminal assembly, and the third terminal assembly, and simultaneously rivet them into the housing body.

[0014] The beneficial effects of this invention are as follows: This invention features multiple limiting blocks, limiting grooves, and limiting holes in the terminal assembly and the housing body, effectively ensuring accurate and fixed installation of the terminal assembly within the housing body, thus improving connection stability. The housing body has a sliding groove, and each terminal assembly has a sliding block. Each sliding block is equidistant from the welding end, and the sliding blocks are arranged and embedded within the sliding groove, effectively improving the coplanarity of the welding ends of the terminal assembly. A first hook is located above the sliding groove, and a second hook is located on the sliding block. The first hook engages with the second hook, applying a pulling force towards both sides of the housing body to the terminal assembly, preventing deformation towards the lower end of the connector and further improving coplanarity. An adjusting tongue is located below the rivet seat of the first terminal assembly. Adjusting the tongue applies a force towards the front and upper ends of the housing body to the entire terminal assembly, effectively preventing bending towards the rear end of the housing body and further improving coplanarity. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort: Figure 1 This is a perspective view of a QSFP-DD horizontal connector according to an embodiment of the present invention; Figure 2 This is an exploded view of a QSFP-DD horizontal connector according to an embodiment of the present invention; Figure 3 This is a perspective view of the first terminal assembly in one embodiment of the present invention; Figure 4 This is a perspective view of the first terminal assembly from another angle in one embodiment of the present invention; Figure 5 This is a perspective view of the second terminal assembly in one embodiment of the present invention; Figure 6 This is a perspective view of the second terminal assembly from another angle in one embodiment of the present invention; Figure 7 This is a perspective view of the third terminal assembly in one embodiment of the present invention; Figure 8 This is a perspective view of the outer shell body in one embodiment of the present invention; Figure 9 This is a perspective view of a QSFP-DD horizontal connector from another angle in one embodiment of the present invention; Figure 10 This is a flowchart of the assembly process of a QSFP-DD horizontal connector according to an embodiment of the present invention.

[0016] Labeling Explanation: 1. Outer shell body; 11. Receiving cavity; 12. Terminal assembly; 13. Insulating base; 14. Terminal; 141. Plug-in end; 142. Welding end; 15. Riveting base; 161. Fifth limiting groove; 162. Sixth limiting groove; 163. First limiting hole; 164. Second limiting hole; 2. First terminal assembly; 21. First insulating base; 22. First limiting block; 23. First limiting groove; 24. Sixth limiting block; 25. Seventh limiting block; 26. Eighth limiting block; 3. Second terminal assembly; 31. Second insulating base; 32. Second limiting block; 33. Second limiting groove; 34. Third limiting groove; 35. Fifth limiting block; 36. Fourth limiting groove; 4. Third terminal assembly; 41. Third insulating base; 42. Third limiting block; 43. Fourth limiting block; 5. Fourth terminal assembly; 61. Sliding block; 62. Sliding groove; 63. First hook; 631. First groove; 64. Second hook; 641. Second groove; 65. Adjusting tongue. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0018] Please refer to the attached document. Figures 1-9 This invention proposes a QSFP-DD horizontal connector, including a housing body 1 and multiple terminal assemblies 12. The housing body 1 forms a receiving cavity 11 inside. Each terminal assembly 12 includes an insulating base 13 and multiple terminals 14. The terminals 14 are installed in the receiving cavity 11 through the insulating base 13. The housing body 1 and the insulating base 13 are provided with a limiting structure and a correcting structure. The limiting structure includes mutually adaptable limiting blocks, limiting grooves and limiting holes, and is used to limit the relative movement between the terminal assemblies 12 and between the terminal assemblies 12 and the housing body 1. The correcting structure includes a sliding block 61, a sliding groove 62 and multiple hooks. The sliding block 61 is arranged in the sliding groove 62, and the hooks are interlocked with each other, and are used to improve the coplanarity of the terminal assemblies 12.

[0019] In this embodiment, a QSFP-DD horizontal connector includes a housing body 1 and multiple terminal assemblies 12. The terminal assemblies 12 are stacked in parallel and, from top to bottom, are a first terminal assembly 2, a second terminal assembly 3, a third terminal assembly 4, and a fourth terminal assembly 5. Each terminal assembly 12 includes an insulating base 13, a crimping base 15, and multiple terminals 14. The terminals 14 are fixed to a receiving cavity 11 inside the housing body 1 by the insulating base 13. Each terminal 14 includes a plug end 141 and a solder end 142. The plug end 141 is located at the front end of the receiving cavity 11 and forms a plug end 141 opening for signal transmission. The solder end 142 is bent relative to the plug end 141 and is arranged parallel to the lower end of the housing body 1, facing the opposite direction to the plug end 141. In a specific embodiment, the connector is soldered to a circuit board through the solder end 142 to achieve electrical connection. The outer casing 1, insulating base 13, and riveting base 15 are provided with limiting structures and correcting structures. The limiting structures include mutually adaptable limiting blocks, limiting grooves, and limiting holes, which are used to limit the relative movement between terminal assemblies 12 and between terminal assemblies 12 and the outer casing 1, thereby improving assembly accuracy and connection stability. The correcting structure includes multiple adjusting tongues 65, sliding blocks 61, multiple sliding grooves 62, and multiple hooks. The sliding blocks 61 are located on both sides of the riveting base 15 in the terminal assembly 12, and the distance from any sliding block 61 to the welding end 142 is equal. The sliding grooves 62 are horizontally arranged on the inner sidewall of the outer casing 1, and the sliding blocks 61 are sequentially arranged and embedded in the sliding grooves 62, thereby achieving coplanarity of the welding ends 142. The latch includes a first latch 63 and a second latch 64. The first latch 63 is located above the sliding groove 62, and its end is bent towards the inside of the sliding groove 62. The second latch 64 is respectively located on the sliding block 61, and its end is bent towards the middle of the terminal assembly 12. The second latch 64 and the sliding block 61 are embedded into the sliding groove 62 together, and form a snap-fit ​​connection with the first latch 63. The first latch 63 applies a pulling force to the terminal assembly 12 towards both sides of the outer shell body 1, effectively preventing the terminal assembly 12 from deforming towards the lower end of the connector due to compression, thereby improving the coplanarity of the solder end 142. The adjusting tongue 65 is located below the rivet seat 15 near the solder end 142. By adjusting the tongue, a pulling force is applied to the terminal assembly 12 towards the front end of the connector, effectively preventing the terminal assembly 12 from deforming towards the rear end of the connector, thereby improving the coplanarity of the solder end 142.

[0020] Please refer to Figure 1 and Figure 2Terminal assemblies 12 are stacked in parallel, and from top to bottom they are the first terminal assembly 2, the second terminal assembly 3, the third terminal assembly 4 and the fourth terminal assembly 5. Each terminal includes a plug-in end 141 and a solder end 142. The plug-in end 141 is located at the front end of the receiving cavity 11, and the solder end 142 is bent relative to the plug-in end 141 and is arranged in parallel at the lower end of the housing body 1, facing the opposite direction to the plug-in end 141.

[0021] In a specific implementation: the inner cavity of the outer shell body 1 is hollow to form a receiving cavity 11. The terminal assemblies 12 are stacked in parallel in the receiving cavity 11, and from top to bottom they are the first terminal assembly 2, the second terminal assembly 3, the third terminal assembly 4 and the fourth terminal assembly 5. In a specific embodiment, the front end of the outer shell body 1 is rectangular and open, the upper end is stepped and rising, the rear end is connected to the receiving cavity 11, the lower end is provided with a baffle near the front end, and the lower end is hollow near the rear end. Each terminal assembly 12 includes an insulating base 13 and multiple terminals 14. The terminals 14 are fixed in the insulating base 13 by riveting and are fixed in the receiving cavity 11 by the insulating base 13. Specifically, each terminal 14 includes a plug end 141 and a solder end 142. The plug end 141 is located at the front end of the receiving cavity 11 and forms a plug end 141 port. The plug end 141 port is used to connect other compatible connectors to realize signal transmission. The solder end 142 is bent relative to the plug end 141. The plug ends 141 are arranged in parallel at the lower end of the housing body 1 and face the opposite direction of the plug end 141. In a specific embodiment, the terminal 14 forms a stepped structure by multiple right-angle bends, and from the front end to the rear end, it is the solder end 142 of the first terminal assembly 2, the second terminal assembly 3, the third terminal assembly 4 and the fourth terminal assembly 5 in sequence. The solder end 142 forms a solder part and is used to solder the connector to the circuit board, thereby realizing the electrical connection between the connector and the circuit board.

[0022] Please refer to Figures 1-8 The limiting structure includes mutually compatible limiting blocks, limiting grooves and limiting holes, and is used to limit the relative movement between terminal assemblies 12 and between terminal assemblies 12 and housing body 1.

[0023] In specific implementation: the outer shell body 1 and the insulating seat 13 are provided with a limiting structure, which includes a limiting block, a limiting groove and a limiting hole. The shape, size and position of the limiting block, limiting groove and limiting hole can be adaptively adjusted according to the actual situation without limitation. In a specific embodiment, the first terminal assembly 2, the second terminal assembly 3, the third terminal assembly 4 and the fourth terminal assembly 5 respectively include a first insulating seat 21, a second insulating seat 31, a third insulating seat 41 and a fourth insulating seat. The insulating seats 13 are parallel to each other. The first insulating seat 21 is provided with a plurality of first limiting blocks 22 in the middle and a plurality of first limiting grooves 23 on both sides. The second insulating seat 31 is provided with a plurality of second limiting blocks 32 and a plurality of second limiting grooves 33. The first limiting blocks 22 are embedded in the second limiting grooves 33 and the second limiting blocks 32 are embedded in the first limiting grooves 23, so as to realize the connection between the first terminal assembly 2 and the second terminal assembly 3 and effectively prevent relative horizontal movement between the first terminal assembly 2 and the second terminal assembly 3. The third insulating base 41 has a third limiting block 42 in the middle and a fourth limiting block 43 on the upper side. The second insulating base 31 has a corresponding third limiting groove 34 and a fifth limiting block 35. The fifth limiting block 35 has a reserved fourth limiting groove 36. The third limiting block 42 is embedded in the third limiting groove 34 and the fourth limiting block 43 is embedded in the fourth limiting groove 36, so as to realize the connection between the second terminal assembly 3 and the third terminal assembly 4 and effectively prevent relative horizontal movement between the second terminal assembly 3 and the third terminal assembly 4. The first insulating base 21 is also provided with a sixth limiting block 24 at its side end. The inner side wall of the outer shell body 1 is also provided with a fifth limiting groove 161 and a sixth limiting groove 162 that can conduct through the rear end of the outer shell body 1. The sixth limiting block 24 slides into the fifth limiting groove 161 from the rear end of the outer shell body 1. The fourth limiting block 43 and the fifth limiting block 35 slide into the sixth limiting groove 162 from the rear end of the outer shell body 1, thereby realizing the connection between the first terminal assembly 2, the second terminal assembly 3 and the third terminal assembly 4 and the outer shell body 1, and effectively preventing relative movement between the terminal assembly 12 and the outer shell body 1.

[0024] Furthermore, a baffle is provided at the lower end of the outer casing 1 near the front end, and the baffle and the outer casing 1 fix the fourth terminal assembly 5 in the receiving cavity 11.

[0025] Please refer to Figures 1-8 The terminal assembly 12 also includes a rivet base 15, with sliding blocks 61 on both sides of the rivet base 15. The distance from any sliding block 61 to the welding end 142 is equal. The sliding groove 62 is horizontally arranged on the inner side wall of the outer shell body 1, and the sliding blocks 61 are arranged in sequence and embedded in the sliding groove 62 so that the welding ends 142 are coplanar.

[0026] In a specific implementation: the terminal assembly 12 also includes a rivet base 15, with sliding blocks 61 respectively provided on both sides of the rivet base 15. In one specific embodiment, the rivet base 15 is made of insulating material, and any terminal 14 is fixed inside the rivet base 15. The sliding blocks 61 are provided on both sides of the rivet base 15, and the distance to the welding end 142 of the terminal 14 is equal. The first terminal assembly 2, the second terminal assembly 3, the third terminal assembly 4, and the fourth terminal assembly 5 each include two first sliding blocks 61, a second sliding block, a third sliding block, and a fourth sliding block on each side. The sliding groove 62 is horizontally disposed on the left and right inner sidewalls of the outer shell body 1 and can connect to the rear end of the outer shell body 1. The sliding blocks 61 slide into the rear end of the outer shell body 1 and are sequentially arranged and embedded in the sliding groove 62, thereby achieving coplanarity of the welding ends 142, that is, the welding ends 142 of all terminal assemblies 12 are on the same horizontal plane, which can effectively avoid incomplete soldering and improve connection stability. In one specific embodiment, the sliding groove 62 consists of a fourth sliding block, a third sliding block, a second sliding block, and a first sliding block from the front end to the rear end.

[0027] Furthermore, a seventh limiting block 25 is provided above the side of the sixth limiting block 24 near the rear end of the outer shell body 1, and a first limiting hole 163 is provided on the top surface of the outer shell body 1 accordingly; the sliding block 61 of the first terminal assembly 2 is the first sliding block 61, and an eighth limiting block 26 is provided on the side above the first sliding block 61, and a second limiting hole 164 is provided on the side of the outer shell body 1. In a specific embodiment, the second limiting hole 164 is located at the sixth limiting groove 162; when the terminal assembly 12 is riveted into the outer shell body 1, the seventh limiting block 25 is engaged in the first limiting hole 163, and the eighth limiting block 26 is engaged in the second limiting hole 164, forming a snap-fit ​​connection, thereby realizing the fixed connection between the terminal assembly 12 and the outer shell body 1.

[0028] Please refer to Figures 1-9 The latch includes a first latch 63 and a second latch 64. The first latch 63 is located above the sliding groove 62, and the end of the first latch 63 is bent toward the inside of the sliding groove 62. The second latch 64 is respectively located on the sliding block 61. The first latch 63 engages with the second latch 64 and is used to apply a pulling force toward the outside of the outer shell body 1 to the terminal 14.

[0029] In specific implementation: the latches include a first latch 63 and a second latch 64. The first latch 63 is located between the sliding groove 62 and the sixth limiting groove 162. The length of the first latch 63 corresponds to the length of the sliding groove 62. The end of the first latch 63 is bent toward the inside of the sliding groove 62 and forms a first groove 631 between itself and the outer shell body 1. The second latch 64 is respectively located above the sliding block 61. The end of the second latch 64 is bent toward the middle of the terminal assembly 12 and forms a second groove 641 between itself and the sliding block 61 and the rivet seat 15. The second hook 64 and the sliding block 61 are arranged together and embedded in the sliding groove 62, and the first hook 63 is embedded in the second groove 641, and the second hook 64 is embedded in the first groove 631. The first hook 63 and the second hook 64 form a snap-fit ​​connection. The first hook 63 applies a pulling force to the second hook 64 toward both sides of the outer shell body 1, which effectively prevents the welding end 142 from being non-coplanar due to easy deformation of the rivet seat 15, thereby improving the coplanarity of the terminal assembly 12.

[0030] Please refer to Figures 1-9 It also includes an adjusting tongue 65, which is located below the rivet seat 15 of the first terminal assembly 2 and is used to correct the coplanarity of the welded ends.

[0031] In specific implementation: the adjusting tongue 65 is located below the rivet seat 15 of the first terminal assembly 2 and close to the welding end 142. In one specific embodiment, the rivet seat 15, the first sliding block 61, and the adjusting tongue 65 are integrally formed. During the assembly process, the fourth terminal assembly 5 is first installed in the housing body 1, and then the assembled first terminal assembly 2, second terminal assembly 3, and third terminal assembly 4 are riveted into the housing body 1 together by pressing the rivet seat 15. At this time, the welding end 142 of the first terminal assembly 2 is prone to bend towards the rear end of the housing body 1. By applying a force towards the front end and the top end of the housing body 1 to the entire terminal assembly 12 by adjusting the tongue 65, the welding end 142 of each terminal assembly 12 is located on a plane, effectively improving the coplanarity of the terminal assembly 12.

[0032] Please refer to Figure 10 The present invention also provides an assembly process for a QSFP-DD horizontal connector, comprising the following steps: S1. Rivet the plug end 141 of the pre-set material strip terminal 14 into the pre-set insulating seat 13 and the pre-set riveting seat 15. S2. The welding end 142 of the terminal 14 is separated from the strip by a preset bending and cutting fixture, and the terminal 14 is bent. S3. The preset grounding pieces are spot welded to the insulating base 13 and the rivet base 15 respectively to form a terminal assembly 12, wherein the terminal assembly 12 includes a first terminal assembly 2, a second terminal assembly 3, a third terminal assembly 4 and a fourth terminal assembly 5. S4. Rivet the fourth terminal assembly 5 into the preset housing body 1; S5. Assemble the first terminal assembly 2, the second terminal assembly 3 and the third terminal assembly 4, and simultaneously rivet them into the housing body 1.

[0033] In specific implementation: First, the plug-in end 141 of the terminal 14 in the preset material strip is riveted into the preset sliding block 61 and the preset insulating seat 13. In one specific embodiment, multiple terminals 14 are arranged on the material strip. The terminal 14 includes a plug-in end 141 and a welding end 142. The welding end 142 is fixed on the material strip, and the plug-in end 141 is riveted into the preset insulating seat 13 and the riveting seat 15 respectively. Next, the welding end 142 of the terminal 14 is separated from the material strip by a preset bending and cutting fixture, and the welding end 142 is bent. In one specific embodiment, the bent terminal 14 has a stepped structure. Next, multiple preset grounding pieces are spot-welded to the corresponding positions of the insulating seat 13 to form a terminal assembly 12, wherein the terminal assembly 12 includes a first terminal assembly 2, a second terminal assembly 3, a third terminal assembly 4, and a fourth terminal assembly 5. Next, the fourth terminal assembly 5 is riveted into the pre-set housing body 1; then, the first terminal assembly 2, the second terminal assembly 3, and the third terminal assembly 4 are assembled and simultaneously riveted into the housing body 1, thereby completing the entire conversion process, which is beneficial for large-scale batch assembly. In a specific embodiment, the terminal assembly 12 and the housing body 1 are provided with multiple limiting blocks, limiting grooves, and limiting holes, effectively ensuring that the terminal assembly 12 can be accurately and fixedly installed in the housing body 1; in addition, the housing body 1 is provided with a sliding groove 62, and each terminal assembly 12 is provided with a sliding block 61. The distance from each sliding block 61 to the welding end is equal, and the sliding blocks 61 are arranged and embedded in the sliding groove 62, so that the welding ends 142 of the terminal are coplanar; in addition, a first hook 63 is provided above the sliding groove 62, and a second hook 64 is provided on the sliding block 61. The first hook 63 engages with the second hook 64 and applies force to the terminal assembly 12. Applying tension towards both sides of the housing body 1 can prevent the terminal assembly 12 from deforming towards the lower end of the connector due to riveting, effectively improving the coplanarity of the terminal assembly 12. In addition, an adjusting tongue 65 is provided below the riveting seat 15 of the first terminal assembly 2 near the welding end 142. By adjusting the tongue 65, a force is applied to the entire terminal assembly 12 towards the front end and the upper end of the housing body 1, effectively preventing the welding end 142 of the first terminal assembly 2 from bending towards the rear end of the housing body 1, so that the welding end 142 of each terminal assembly 12 is located on a plane, effectively improving the coplanarity of the terminal assembly 12.

[0034] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, apparatus, article, or method that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, apparatus, article, or method. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, apparatus, article, or method that includes that element.

[0035] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A QSFP-DD horizontal connector, characterized in that, The device includes a housing body and multiple terminal assemblies. The housing body has an internal cavity. The terminal assembly includes an insulating base and multiple terminals. The terminals are mounted in the cavity via the insulating base. The housing body and the terminal assembly are provided with a limiting structure and a corrective structure. The limiting structure includes mutually adaptable limiting blocks, limiting grooves and limiting holes, and is used to limit the relative movement between the terminal assemblies and between the terminal assemblies and the housing body. The correction structure includes a sliding block, a sliding groove, and multiple hooks. The sliding block is arranged in the sliding groove, and the hooks engage with each other to improve the coplanarity of the terminal assembly.

2. The QSFP-DD horizontal connector according to claim 1, characterized in that, The terminal assemblies are stacked in parallel, and from top to bottom they are the first terminal assembly, the second terminal assembly, the third terminal assembly, and the fourth terminal assembly.

3. The QSFP-DD horizontal connector according to claim 2, characterized in that, Both the limiting structure and the correcting structure include two sets, which are respectively located on both sides of the outer shell body or the terminal assembly.

4. The QSFP-DD horizontal connector according to claim 3, characterized in that, Each of the terminals includes a plug-in end and a solder end. The plug-in end is located at the front end of the receiving cavity, and the solder end is bent relative to the plug-in end and arranged parallel to the lower end of the housing body, facing the opposite direction to the plug-in end.

5. The QSFP-DD horizontal connector according to claim 4, characterized in that, The terminal assembly also includes a rivet base, with sliding blocks on both sides of the rivet base, and the distance from any of the sliding blocks to the welding end is equal.

6. The QSFP-DD horizontal connector according to claim 5, characterized in that, The sliding groove is horizontally disposed on the inner side wall of the outer shell body, and the sliding blocks are sequentially arranged and embedded in the sliding groove so that the welding ends are coplanar.

7. The QSFP-DD horizontal connector according to claim 6, characterized in that, The hook includes a first hook and a second hook. The first hook is located above the sliding groove, and the end of the first hook is bent toward the inside of the sliding groove.

8. The QSFP-DD horizontal connector according to claim 7, characterized in that, The second hook is respectively provided on the sliding block, the first hook engages with the second hook, and is used to apply a pulling force to the terminal in the direction of the outer side of the outer shell body.

9. The QSFP-DD horizontal connector according to claim 5, characterized in that, It also includes an adjusting tongue, which is located below the rivet seat of the first terminal assembly and is used to correct the coplanarity of the welded ends.

10. An assembly process for a QSFP-DD horizontal connector, characterized in that, Includes the following steps: S1. Rivet the plug-in end of the terminal in the preset material strip into the preset insulating base and the preset riveting base; S2. The welding end of the terminal is separated from the strip by a preset bending and cutting fixture, and the terminal is bent. S3. The preset grounding plates are spot-welded to the insulating base and the crimping base respectively to form a terminal assembly, wherein the terminal assembly includes a first terminal assembly, a second terminal assembly, a third terminal assembly and a fourth terminal assembly; S4. Rivet the fourth terminal assembly into the preset housing body; S5. Assemble the first terminal assembly, the second terminal assembly, and the third terminal assembly, and simultaneously rivet them into the housing body.

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