A differential component module and cable connector

Abstract

This invention provides a differential component module and a cable connector. The differential component module includes at least two differential components and a middle housing. The middle housing has at least two first mounting slots, each for accommodating and positioning one of the differential components. At least two of the differential components are fixedly connected to the middle housing to form an integral single-row module. This invention simplifies the installation process by fixing multiple differential components to a middle housing to form an integral single-row module. During subsequent installation, operators can directly manipulate the entire module instead of handling individual differential components one by one. Furthermore, since multiple differential components are fixed as a whole, their swaying amplitude during installation into the housing is significantly reduced, and their position is easily controlled, effectively reducing installation difficulty and improving assembly efficiency and product yield.

Description

Technical Field

[0001] This invention relates to the field of connector technology, and in particular to a differential component module and cable connector for high-speed signal transmission. Background Technology

[0002] In the field of high-speed signal transmission, the signal transmission quality and assembly reliability of connectors are crucial. In the prior art, high-speed cable assemblies typically include multiple jack cable components, which need to be installed into the housing and secured simultaneously.

[0003] Taking CN116505314A as an example, this patent discloses a high-speed cable assembly, including a differential assembly and a housing. The housing has an installation cavity, and the installation cavity has a middle housing that is detachably connected to the housing. The middle housing has several insertion holes, and the end of the differential assembly passes through the insertion holes to enter the installation cavity. Although this solution improves the installation method of the differential assembly to a certain extent, it still has the following technical problems: (1) All the insertion cable components need to be installed into the housing at the same time for fixing. Since each component is independent, it is difficult to operate as a whole, which makes it difficult to control the position of the insertion cable components. During the installation process of the installation holes of the housing, the swing amplitude of each component is large, making installation difficult and seriously affecting the assembly efficiency and product yield. (2) The existing solution uses a fixing plate to insert into the fixing plate installation slot of the insertion cable component on one side to fix a row (e.g., 4) of insertion cable components, and then installs multiple rows (e.g., 8 rows and 32) of insertion cable components into the middle housing together. In this installation method, the injection molded part cannot be effectively locked by the middle housing, which is easy to move and affects the reliability of use. (3) In the prior art, the shell structures used in adjacent rows are often different, requiring the design of two types of shells, which increases the mold cost and process complexity, and is not conducive to production standardization and cost control. (4) Poor assemblability, the plug cable components lack an effective pre-fixing structure during installation, which is prone to skew and displacement, resulting in unstable signal transmission quality of the final product.

[0004] Therefore, how to provide a cable assembly and connector that can effectively fix multiple differential components into a whole, is easy to install, and has controllable position has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a differential component module and cable connector to solve the technical problems in the prior art, such as the difficulty in installing the plug cable component as a whole, the difficulty in controlling the position, the large swing amplitude, and the difficulty in installation.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: In a first aspect, the present invention provides a differential component module, comprising: At least two differential components, each of which is used to transmit a differential signal; and A housing having at least two first mounting slots, each first mounting slot being used to receive and position one of the differential components; At least two of the differential components are fixedly connected to the middle shell to form an integral single-row module.

[0007] Furthermore, the middle housing includes a support portion, and one side of the support portion is provided with at least one vertical rib extending parallel to the extension direction of the differential assembly, and the space between two adjacent vertical ribs forms the first mounting groove.

[0008] Furthermore, the middle housing is a plastic housing, and at least two of the differential components are fixedly connected to the middle housing via injection molding.

[0009] Furthermore, the support portion is also provided with a back adhesive channel extending perpendicular to the direction of the vertical rib. The back adhesive channel connects to multiple first mounting grooves, allowing adhesive liquid to flow through and form an injection molded body after curing, thereby forming an integral structure connecting multiple differential components.

[0010] Furthermore, the vertical rib is provided with a baffle protruding along the direction perpendicular to the extension of the vertical rib, and the differential assembly includes a sealing adhesive. The sealing adhesive and the baffle cooperate to form a stop adhesive structure to prevent the adhesive from entering the interior of the differential assembly.

[0011] Furthermore, the vertical ribs on both sides are provided with adhesive inlets and outlets for the adhesive to enter and exit.

[0012] Furthermore, the middle housing is a conductive housing, and at least two of the differential components are fixedly connected to the middle housing by welding.

[0013] Furthermore, the conductive housing is a powder metallurgy component.

[0014] Furthermore, at least two of the differential components are pre-fixed in the first mounting slot of the middle housing by a fixing structure.

[0015] Furthermore, the fixing structure is a fixing plate, which is mounted on the middle housing. The fixing plate has a plurality of fixing portions protruding along the extension direction perpendicular to the differential assembly. The differential assembly is provided with a second mounting groove, and the differential assembly is placed between two adjacent fixing portions and the two adjacent fixing portions are inserted into the second mounting groove.

[0016] Furthermore, the middle housing is provided with a fixing plate mounting platform, and the fixing plate is mounted on the fixing plate mounting platform.

[0017] Furthermore, the fixing structure is a fixing block provided on the vertical rib, and the fixing block is provided on both sides of each first mounting groove. Each differential component is pre-fixed in the first mounting groove by the fixing blocks on both sides.

[0018] Furthermore, the support portion is also provided with a cable groove, which is connected to the first mounting groove and is used to accommodate and position the differential cable of the differential component.

[0019] In a second aspect, the present invention provides a cable connector, comprising: An outer shell; Multiple differential component modules as described above are stacked within the housing; and At least one wire harness, which passes through the outer casing and simultaneously engages with multiple inner casings to secure the stacked modules together within the outer casing.

[0020] Furthermore, the housing is provided with multiple rows of mounting holes, each of which is used for one of the differential components to pass through; the multiple rows of mounting holes are arranged in a staggered manner.

[0021] Furthermore, the outer shell is provided with a plurality of limiting grooves, each limiting groove corresponding to a row of mounting holes, and each limiting groove is used to accommodate and limit one middle shell; the multiple rows of mounting holes are staggered, so that the plurality of limiting grooves are staggered, thereby causing the plurality of middle shells to be staggered within the outer shell.

[0022] Furthermore, the wire harness includes a plurality of spaced racks, which extend in a direction perpendicular to the stacking of the differential component modules. The racks pass through fixing holes on the outer shell and engage with fixing grooves on the middle shell. The fixing grooves are located on the side of the support portion of the middle shell.

[0023] Furthermore, the multiple racks are arranged in alternating lengths to accommodate the staggered arrangement of the middle housing, so that a single wire harness piece can simultaneously engage with the fixing grooves of multiple layers of the middle housing.

[0024] Furthermore, the rack is provided with outwardly protruding protrusions, and the rack is interference-fitted with the fixing holes on the outer shell through the protrusions.

[0025] Furthermore, the differential assembly includes a differential cable, a contact, an upper shield, and a U-shaped shield. The end of the differential cable is electrically connected to the contact, and the upper shield and the U-shaped shield are connected to form a cylindrical shielding structure that encloses the contact.

[0026] Furthermore, the tail of the upper shielding sheet and / or the U-shaped shielding sheet is bent to form the sealing body; when the differential assembly is installed in place, the sealing body abuts against the sealing body.

[0027] Beneficial effects: As described above, the differential component module and cable connector of the present invention have the following beneficial effects: (1) This invention forms an integral single-row module by fixing multiple differential components to a central housing. During subsequent installation, operators can directly operate the entire module instead of handling individual differential components one by one, greatly simplifying the installation process. At the same time, since multiple differential components are fixed as a whole, the swaying amplitude during installation into the housing is significantly reduced, and the position is easy to control, effectively reducing the installation difficulty and improving assembly efficiency and product yield.

[0028] (2) This invention provides multiple fixing methods: one is to fix the plastic inner shell and the differential component by injection molding; the other is to fix the conductive inner shell and the differential component by welding. Both methods can achieve a reliable connection between the differential component and the inner shell, forming an integral module. Users can choose the appropriate method according to the actual application scenario, cost requirements and process conditions, which has good adaptability and flexibility.

[0029] (3) Before injection molding or welding, the differential components are pre-fixed in the first mounting groove of the middle housing by a fixing structure. The pre-fixing structure can be a fixing plate or a fixing block set on the vertical rib. This pre-fixing design can effectively prevent the differential components from shaking, tilting and displacing during subsequent injection molding or welding, ensuring the positional accuracy of the final product and improving the signal transmission quality.

[0030] (4) The housing of the present invention is provided with a glue-blocking body, and the differential component is provided with a glue-sealing body. The two together form a glue-stopping structure. During the injection molding process, the glue-stopping structure can effectively prevent the injection molded body from entering the interior of the differential component, avoid glue contamination of the contact parts or affect signal transmission, and ensure the electrical performance of the differential component.

[0031] (5) The present invention arranges multiple rows of mounting holes on the outer shell in a staggered manner, thereby staggering multiple limiting grooves and thus staggering multiple middle shells within the outer shell. This staggered design allows the differential component modules of the odd and even layers to use middle shells with the same structure, avoiding the problem of designing two types of middle shells in the prior art, saving mold costs, standardizing process operations, and improving mass production efficiency.

[0032] (6) This invention employs a wire harness piece that simultaneously engages with multiple stacked intermediate housings, allowing multiple differential component modules to be fixed within the outer housing using a single wire harness piece. The racks on the wire harness piece are arranged in alternating lengths to accommodate staggered intermediate housings, enabling a single wire harness piece to simultaneously engage with the fixing slots of multiple layers of intermediate housings. This design greatly simplifies the installation process of multiple modules and improves assembly efficiency.

[0033] (7) The rack of the wire harness is provided with protruding protrusions. The rack is interference-fitted with the fixing hole on the outer shell through the protrusions, so that the wire harness can be firmly locked and prevented from falling off during use, thereby improving the reliability and safety of the connection.

[0034] (8) The differential component adopts a cylindrical shielding structure that wraps around the contact piece by connecting the upper shielding plate and the U-shaped shielding plate. This structure can effectively shield external electromagnetic interference and ensure the transmission quality of high-speed differential signals. At the same time, the tail of the upper shielding plate and / or the U-shaped shielding plate is bent to form a sealing body, which works with the sealing body to achieve the function of stopping the glue. The structure is ingeniously designed and has a high degree of functional integration.

[0035] In summary, the present invention effectively solves the problems of difficult overall installation and positional control of plug cable components in the prior art, and has outstanding advantages such as simple assembly, high reliability, good signal transmission quality, and cost saving.

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments or the prior art will be briefly introduced below. Obviously, 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.

[0038] Figure 1 This is one of the structural schematic diagrams of the differential component in this invention.

[0039] Figure 2 This is the second schematic diagram of the differential component in this invention.

[0040] Figure 3 This is one of the structural schematic diagrams of the housing in one embodiment of the present invention (including a fixing plate mounting platform + back glue channel + injection molding space, injection molding).

[0041] Figure 4 This is a second schematic diagram of the structure of the housing in one embodiment of the present invention (including a fixing plate mounting platform + back glue channel + injection molding space, injection molding).

[0042] Figure 5 This is one of the structural schematic diagrams of the differential component module in one embodiment of the present invention.

[0043] Figure 6 This is a second schematic diagram of the differential component module in one embodiment of the present invention.

[0044] Figure 7 This is a front view of a differential component module according to one embodiment of the present invention.

[0045] Figure 8 yes Figure 7 Sectional view at point AA.

[0046] Figure 9 yes Figure 8 Enlarged view of point I in the middle.

[0047] Figure 10 This is a structural diagram of the fixing plate.

[0048] Figure 11 This is one of the structural schematic diagrams of the housing in another embodiment of the present invention (including a fixing block + back adhesive channel + injection molding space, injection molding).

[0049] Figure 12 This is a second schematic diagram of the shell structure in another embodiment of the present invention (including a fixing block + back adhesive channel + injection molding space, injection molding).

[0050] Figure 13 This is a schematic diagram of the differential component module (unmolded) according to another embodiment of the present invention.

[0051] Figure 14 This is a front view of a differential component module according to another embodiment of the present invention. (Injection molded) Figure 15 yes Figure 14 Sectional view at point BB.

[0052] Figure 16 yes Figure 15 Enlarged view of section II.

[0053] Figure 17 This is a structural schematic diagram (welded and fixed) of a differential component module according to another embodiment of the present invention.

[0054] Figure 18 yes Figure 17 Enlarged view of section III (the mounting solder joint is set on the fixing block).

[0055] Figure 19 This is one of the structural schematic diagrams of the outer shell in this invention.

[0056] Figure 20 This is the second schematic diagram of the outer shell structure in this invention.

[0057] Figure 21 This is a schematic diagram of the wire bundle structure.

[0058] Figure 22 This is one of the structural schematic diagrams of a connector (excluding the outer shell).

[0059] Figure 23 This is the second structural schematic diagram of the connector (including the outer shell).

[0060] Illustration markings: 1. Differential assembly, 101. U-shaped shield, 102. Second mounting slot, 103. Upper shield, 104. Sealing compound, 105. Differential cable, 106. Contact element; 2. Middle shell, 201. Mounting guide structure, 202. Sealing compound, 203. Back adhesive channel, 204. Fixing plate mounting platform, 205. Vertical rib, 206. First mounting slot, 207. Adhesive inlet / outlet, 208. Injection space, 209. Cable channel, 210. Fixing slot, 211. Fixing block, 212. Support part; 3. Fixing plate, 301. Fixing part; 4. Injection molded body; 5. Outer shell, 501. Mounting hole, 502. Fixing hole, 503. Limiting slot; 6. Cable tie, 601. Rack, 602. Protrusion. Detailed Implementation

[0061] In the description of this invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0062] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0063] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings. First, the specific structures of the differential component, the middle housing, and the fixing plate will be described. Then, the installation method of the differential component module will be explained. Finally, the specific structure of the cable connector and its installation method will be explained.

[0064] First, the specific structure of the differential component 1 in this invention will be described in detail. For example... Figure 1 , Figure 2As shown, the differential component 1 is a basic unit for transmitting high-speed differential signals. It has an elongated, slender structure extending vertically. Each differential component 1 includes a differential cable 105, a contact 106, an upper shield 103, and a U-shaped shield 101. The differential cable 105 is a high-speed differential signal transmission line located at the bottom of the differential component 1, used to connect to external circuits. The core wire of the differential cable 105 is electrically connected to the contact 106, which is located at the top of the differential component 1 and is used to form electrical contact with the terminals of the mating connector to achieve signal transmission. The upper shield 103 and the U-shaped shield 101 are both conductive metal sheets used to form a shielding structure. Specifically, the U-shaped shield 101 has a U-shaped cross-section, with a bottom and two side walls, forming a forward-facing open structure. The upper shield 103 is flat, covering the open end of the U-shaped shield 101, and is fixedly connected to the side walls of the U-shaped shield 101 by welding or snap-fit. After the upper shielding plate 103 is connected to the U-shaped shielding plate 101, a complete cylindrical shielding structure is formed, which encloses the contact 106. This cylindrical shielding structure can effectively shield external electromagnetic interference and ensure the transmission quality of high-speed differential signals. Second mounting grooves 102 are provided on the two side walls of the U-shaped shielding plate 101 near the lower part. The second mounting grooves 102 are rectangular or oblong holes penetrating the side walls, used to cooperate with the fixing structure to pre-fix the differential assembly 1. The number and position of the second mounting grooves 102 correspond to the fixing structure. The tail (i.e., lower part) edge of the upper shielding plate 103 and / or the U-shaped shielding plate 101 is bent to form a sealing body 104. The sealing body 104 is sheet-shaped and extends outward in a direction perpendicular to the extension direction of the differential assembly 1. When the differential assembly 1 is installed in place, the sealing body 104 cooperates with the adhesive-blocking body 202 on the middle housing 2 to form a sealing structure.

[0065] The middle housing 2 is used to support and fix multiple differential components 1, and its specific structure is as follows: Figure 3 , Figure 4 , Figure 11 , Figure 12 As shown. The middle shell 2 includes a support portion 212 and multiple vertical ribs 205 disposed on the support portion 212. The support portion 212 is flat and forms the foundation of the middle shell 2. The vertical ribs 205 are disposed on one side of the support portion 212 and extend in the vertical direction (i.e., parallel to the extension direction of the differential assembly 1). The multiple vertical ribs 205 are arranged at intervals in the left-right direction, and the space between two adjacent vertical ribs 205 forms a first mounting groove 206. The first mounting groove 206 is an elongated groove extending in the vertical direction, used to accommodate and position a differential assembly 1. The width of the first mounting groove 206 matches the width of the differential assembly 1, so that the differential assembly 1 can be inserted into the first mounting groove 206.

[0066] In this invention, the middle shell 2 can be made of two materials: plastic or conductive (such as powder metallurgy). The middle shell 2 is also provided with the following structure: (1) a back adhesive channel 203, which is located in the middle of the support part 212 and is a through hole extending in the left-right direction (perpendicular to the extension direction of the vertical rib 205). The back adhesive channel 203 is connected to multiple first mounting grooves 206. The back adhesive channel 203 is used to allow the adhesive liquid forming the injection molded body 4 to flow through. (2) an adhesive block 202, which is located on the vertical rib 205 and is a protrusion protruding in the direction perpendicular to the extension direction of the vertical rib 205 (i.e., the left-right direction). The adhesive block 202 is used to cooperate with the sealing body 104 of the differential component 1. When the differential component 1 is inserted into the first mounting groove 206, the lower end face of the sealing body 104 abuts against the upper end face of the adhesive block 202 to form an adhesive-stopping structure. During the injection molding process, the adhesive flows under pressure. When it encounters the blockage formed by the adhesive barrier 202 and the sealing adhesive 104, it cannot continue to enter the contact part 106 area on the upper part of the differential component 1. This principle ensures that the injection molded body 4 only fills the predetermined area and does not contaminate the critical electrical contact parts. (3) Adhesive inlet and outlet 207 are set on the two vertical ribs 205 located on the leftmost and rightmost sides, and are through holes that pass through the vertical ribs 205 in the left and right directions. The adhesive inlet and outlet 207 are connected to the first mounting groove 206 on the same side and are used to supply adhesive to enter or exit during the injection molding process. There are two adhesive inlet and outlet 7, one for adhesive to enter and the other for adhesive to exit. (4) Cable groove 209 is set on the lower part of the support part 212. The cable groove 209 is connected to the first mounting groove 206, that is, there is a cable groove 209 below each first mounting groove 206. The cable groove 209 is used to accommodate and position the differential cable 105 part of the differential component 1 to prevent the cable from shaking. (5) Fixing groove 210, located on the side of the support 212 (such as the left and right edges), is a groove extending in the left and right direction. The fixing groove 210 is used to cooperate with the rack 601 of the wire harness 6 to fix the middle shell 2. (6) Installation guide structure 201: located on the upper side of the middle shell 2, is a beveled, chamfered or ribbed structure. The installation guide structure 201 is used to guide the differential component module when it is installed into the outer shell 5, which facilitates assembly. (7) Injection space 208, the injection space 208 is used to contain the adhesive, and its shape is consistent with the shape of the injection molded body 4 obtained by curing the adhesive.

[0067] When the differential component 1 and the middle housing 2 are injection molded, the middle housing 2 is provided with structures such as a back adhesive channel 203, an adhesive baffle 202, and an adhesive inlet / outlet 207. Adhesive is injected into the middle housing 2 through the injection molding process, and after the adhesive cures, it forms an injection molded body 4, which fixes the multiple differential components 1 and the middle housing 2 together as a whole.

[0068] When the differential component 1 and the middle housing 2 are welded together, the middle housing 2 no longer has structures such as the back adhesive channel 203, adhesive baffle 202, and adhesive inlet / outlet 207; it only has structures such as the fixing groove 210 and cable groove 209. Multiple differential components 1 are welded to the outer metal layer of the middle housing 2 through a welding process, achieving a fixed connection between the two.

[0069] Before injection molding or welding, the differential assembly 1 needs to be pre-fixed in the first mounting groove 206 of the middle housing 2 using a fixing structure. The purpose of this pre-fixation is to ensure the accurate and stable position of the differential assembly 1 before final fixing (injection molding or welding), preventing displacement in subsequent processes. The fixing structure has two types: One type is fixed plate 3, such as Figure 10 As shown, the fixing plate 3 is a sheet-like component placed on the fixing plate mounting platform 204 of the middle housing 2. The fixing plate 3 has a plurality of fixing portions 301 protruding along the extension direction perpendicular to the differential assembly 1. The fixing portions 301 are sheet-like or columnar structures, and the spacing between two adjacent fixing portions 301 is slightly smaller than the width of the upper part of the differential assembly 1. The fixing portions 301 are used to insert into the second mounting groove 102 of the differential assembly 1 to achieve pre-positioning of the differential assembly. The fixing plate mounting platform 204 (as shown) Figure 3 , Figure 4 (As shown) It consists of the top of the vertical rib 205 and is used to support the fixing piece 3.

[0070] Another type is fixed block 211 (such as...) Figure 11 , Figure 12 As shown, the fixing block 211 is disposed on the vertical rib 205 and is a protrusion protruding into the first mounting groove 206. Each first mounting groove 206 has a fixing block 211 on both the left and right sides; that is, the fixing block 211 on the left vertical rib 205 protrudes to the right, and the fixing block 211 on the right vertical rib 205 protrudes to the left. The fixing block 211 is used to directly clamp the differential assembly 1, achieving pre-fixation.

[0071] Please refer to Figure 5-18 The following describes the installation method of the differential component module, which covers different fixing methods and fixing structures: Step 1: Based on the required fixing method and structure, prepare multiple differential components 1, a middle housing 2, and corresponding fixing structures (fixing plates 3 or middle housing 2 with fixing blocks 211). The material of the middle housing 2 is selected according to the final fixing method: if injection molding is used, a plastic middle housing 2 is selected; if welding is used, a conductive material (such as powder metallurgy) middle housing 2 is selected. Step 2: Insert the multiple differential components 1 into the corresponding first mounting slots 206 in the middle housing 2. Depending on the fixing structure used, the specific pre-fixing process is as follows: When the fixing plate 3 is used as the fixing structure, the fixing plate 3 must first be placed on the fixing plate mounting platform 204 of the middle housing 2. When the differential assembly 1 is advanced to the predetermined position, two adjacent fixing parts 301 can be inserted into the second mounting slot 102 of a differential assembly 1 from both sides. Each differential assembly 1 is placed between two adjacent fixing parts 301. When the fixing block 211 is used as the fixing structure, since each first mounting groove 206 has a fixing block 211 protruding into the groove on both the left and right sides, the effective width of the first mounting groove 206 is slightly smaller than the original width of the differential component 1. When the differential component 1 is inserted, a certain pushing force needs to be applied so that the outer wall of the differential component 1 overcomes the resistance of the fixing block 211 and is squeezed into the first mounting groove 206. After insertion, the fixing block 211 and the differential component 1 form a locking fit, clamping and fixing the differential component 1. Regardless of the fixing structure used, when the differential assembly 1 is advanced to the predetermined position, the lower end face of the sealant 104 of the differential assembly 1 abuts against the upper end face of the sealant block 202 on the vertical rib 205, forming the initial state of the sealant-stopping structure. At the same time, the differential cable 105 of the differential assembly 1 is partially accommodated in the cable groove 209, achieving initial positioning; Step 3: After pre-fixing is completed, select the appropriate final fixing method according to the material of the middle shell 2: When the middle shell 2 is made of plastic, injection molding is used for fixing: the middle shell 2, on which multiple differential components 1 are pre-fixed, is placed into an injection mold, and the adhesive is injected into the middle shell 2 through the adhesive inlet and outlet 207 using an injection molding machine. After the adhesive enters, it first fills the gap in the first mounting groove 206 located on the outside, and then flows into the back adhesive channel 203. The back adhesive channel 203 connects the multiple first mounting grooves 206, allowing the adhesive to flow in the left and right directions and evenly fill all the first mounting grooves 206. During this process, the adhesive-stopping structure formed by the adhesive-blocking body 202 and the adhesive-sealing body 104 can prevent the adhesive from entering the area where the contact parts 106 are located on the upper part of the differential components 1, thereby preventing the adhesive from contaminating the contact parts 106. After injection molding is completed, wait for the adhesive to cool and solidify to form the injection molded body 4. Then, the multiple differential components 1 and the middle shell 2 are firmly fixed and connected as a whole to form an integral single-row module, i.e., a differential component module; When a conductive material is used for the middle shell 2, welding is employed for fixation: the middle shell 2, pre-fixed with multiple differential components 1, is placed in a welding fixture, and laser welding, resistance welding, or other suitable welding processes are used to weld and fix the middle shell 2 to the outer metal layer (i.e., U-shaped shielding plate 101 and / or upper shielding plate 103) of the differential components 1. Welding points C are located at the contact positions between the fixing block 211 and the differential components 1, or at other contact positions between the middle shell 2 and the U-shaped shielding plate 101. After welding, the multiple differential components 1 and the conductive middle shell 2 are fixed together as a single integrated module. Because the middle shell 2 is made of conductive material, the multiple differential components 1 are electrically connected through the middle shell 2 after welding, which connects the shielding layers of each differential component together, forming a larger shielding network and further enhancing the overall shielding effect.

[0072] By following the steps described above, a differential component module can be obtained. This module can be any one of four combinations: injection molding fixation + fixation plate pre-fixation, injection molding fixation + fixation block pre-fixation, welding fixation + fixation block pre-fixation, or welding fixation + fixation plate pre-fixation.

[0073] This invention forms an integral single-row module by fixing multiple differential components 1 to the middle shell 2 (injection molding or welding). The core of this modular design is to integrate the originally independent multiple differential components 1 into a whole, so that the object of operation changes from multiple independent parts to a whole module during subsequent installation, effectively solving the problems of difficulty in synchronous installation and positional control of multiple independent parts in the prior art.

[0074] The specific structure of the cable connector is described below. The cable connector includes multiple differential component modules manufactured by the above method, a housing 5, and two cable bundles 6.

[0075] like Figure 19 , Figure 20As shown, the outer casing 5 is an external housing used to accommodate and fix multiple differential component modules. The outer casing 5 is generally cuboid in shape and has multiple rows of mounting holes 501. Multiple mounting holes 501 within each row are spaced apart in the left-right direction, and the multiple rows of mounting holes 501 are stacked in the front-back direction (i.e., the depth direction). Each mounting hole 501 is a through hole extending vertically, allowing the upper end of a differential component 1 to pass through for insertion with a mating connector. Multiple fixing holes 502 are provided on the left and right side walls of the outer casing 5. The fixing holes 502 are through holes extending horizontally, used to engage with the rack 601 of the cable tie 6. The positions of the fixing holes 502 correspond to the positions of the fixing grooves 210 on the middle casing 2. Multiple limiting grooves 503 are provided inside the outer casing 5. The limiting grooves 503 are grooves extending vertically, used to accommodate and limit one middle casing 2. Each limiting groove 503 corresponds to a row of mounting holes 501. Multiple limiting grooves 503 are connected to form a mounting cavity, which can accommodate all the middle shells 2.

[0076] As a preferred embodiment of the present invention, the multiple rows of mounting holes 501 are staggered, that is, adjacent rows of mounting holes 501 are offset in the left and right directions, thereby causing the multiple limiting grooves 503 to also be staggered, and thus causing the multiple middle shells 2 to be staggered within the outer shell 5. This staggered design allows the differential component modules of the odd and even layers to use the same structure of middle shell 2, eliminating the need to design two types of middle shells.

[0077] like Figure 21-22 As shown, the wire harness 6 is a sheet-like component integrally formed, including a substrate and a plurality of racks 601 disposed on the substrate. The racks 601 extend from one side of the substrate in the same direction (i.e., perpendicular to the direction of stacking of differential component modules, i.e., the left-right direction). The plurality of racks 601 are spaced apart in the front-back direction.

[0078] To accommodate the misaligned middle housing 2, the rack 601 is elongated, and its length varies depending on the position of the corresponding middle housing 2. Specifically, multiple racks 601 are arranged in alternating lengths to accommodate the misaligned middle housing 2. A protruding point 602 is provided near the end of each rack 601. The protrusion 602 is hemispherical or pyramidal, used to form an interference fit with the fixing hole 502 on the outer housing 5.

[0079] Please refer to Figure 23 The following example illustrates the installation steps for a cable connector, using the assembly of a cable connector containing multiple differential component modules (e.g., 8 differential component modules, each containing 6 differential components, and 1 connector containing 48 differential components): Step 1: Prepare the outer casing 5, 8 differential component modules (manufactured using any of the aforementioned embodiments), and wire harness 6; Step 2: Insert the eight differential component modules sequentially into the housing 5. The middle housing 2 of each differential component module is inserted into a corresponding limiting groove 503. When the differential component module is advanced to the predetermined position, the upper end of each differential component 1 passes through the corresponding mounting hole 501 and extends a certain length beyond the upper surface of the housing 5 to connect with the mating connector. At this time, the middle housing 2 is completely accommodated within the limiting groove 503, and the fixing groove 210 on the middle housing 2 is precisely aligned with the fixing hole 502 on the housing 5 in the left-right direction. Because the mounting holes 501 and the limiting grooves 503 are staggered, the multiple differential component modules are also staggered within the housing 5, meaning that adjacent middle housings 2 are offset in the left-right direction. Step 3: Insert the two wire harness pieces 6 into the outer shell 5. The base plate of the wire harness piece 6 is located on the outside of the outer shell 5, and multiple racks 601 pass through the corresponding fixing holes 502 and extend into the interior of the outer shell 5. Because the racks 601 are arranged in alternating lengths, they can accommodate the misaligned middle shell 2: longer racks 601 correspond to middle shell 2 positions that are more off-center (larger offset), and shorter racks 601 correspond to middle shell 2 positions that are more upright (smaller offset). After each rack 601 extends in, it fits precisely into the fixing groove 210 of the corresponding middle shell 2, achieving a snap-fit ​​engagement between the rack 601 and the fixing groove 210. Continue pushing the wire harness piece 6 forward until the protrusion 602 on the rack 601 contacts the wall of the fixing hole 502. Since the outer diameter of the protrusion 602 is slightly larger than the inner diameter of the fixing hole 502, the protrusion 602 and the fixing hole 502 form an interference fit. As the process continues, the protrusion 602 is compressed, causing elastic deformation and tightly fitting into the fixing hole 502. Once the protrusion 602 has completely passed through the fixing hole 502, it recovers its elasticity and locks onto the other side of the fixing hole 502, thereby locking the wire harness piece 6 onto the outer casing 5 and preventing it from coming out.

[0080] At this point, the cable connector assembly is complete. Figure 22 , Figure 23 As shown, multiple differential component modules are fixed together inside the housing 5 by the cable tie 6 to form a complete cable connector product.

[0081] The differential component module and cable connector provided by this invention have been described in detail above. Specific examples have been used to illustrate the principles and specific implementation methods of this invention. These embodiments are only used to help understand the method and core ideas of this invention. It should be noted that any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this invention will fall within the protection scope of this invention for those skilled in the art.

Claims

1. A differential component module, characterized in that, include: At least two differential components (1), each of the differential components (1) being used to transmit differential signals; as well as A housing (2) has at least two first mounting slots (206), each of the first mounting slots (206) being used to receive and position one of the differential components (1); At least two of the differential components (1) are fixedly connected to the middle shell (2) to form an integral single-row module.

2. The differential component module according to claim 1, characterized in that, The middle housing (2) includes a support portion (212), and one side of the support portion (212) is provided with at least one vertical rib (205) extending in a direction parallel to the extension of the differential component (1), and the space between two adjacent vertical ribs (205) forms the first mounting groove (206).

3. The differential component module according to claim 2, characterized in that, The middle shell (2) is a plastic shell, and at least two of the differential components (1) are fixedly connected to the middle shell (2) by injection molding bodies (4).

4. The differential component module according to claim 3, characterized in that, The support part (212) is also provided with a back adhesive channel (203) extending in a direction perpendicular to the vertical rib (205). The back adhesive channel (203) connects to multiple first mounting grooves (206) for the flow of adhesive liquid to form an injection molded body (4) after curing, thereby forming an overall structure connecting multiple differential components (1).

5. The differential component module according to claim 4, characterized in that, The vertical rib (205) is provided with a baffle (202) protruding in a direction perpendicular to the extension of the vertical rib (205). The differential component (1) includes a sealing adhesive (104). The sealing adhesive (104) and the baffle (202) cooperate to form a stop adhesive structure to prevent the adhesive from entering the interior of the differential component (1).

6. The differential component module according to claim 3, characterized in that, The vertical ribs (205) located on both sides are provided with adhesive inlets and outlets (207) for the adhesive to enter and exit.

7. The differential component module according to claim 2, characterized in that, The middle housing (2) is a conductive housing, and at least two of the differential components (1) are fixedly connected to the middle housing (2) by welding.

8. The differential component module according to claim 7, characterized in that, The conductive housing is a powder metallurgy component.

9. The differential component module according to claim 3 or 7, characterized in that, At least two of the differential components (1) are pre-fixed in the first mounting groove (206) of the middle housing (2) by a fixing structure.

10. The differential component module according to claim 9, characterized in that, The fixing structure is a fixing plate (3), which is installed on the middle housing (2). The fixing plate (3) has a plurality of fixing parts (301) protruding along the extension direction perpendicular to the differential assembly (1). The differential assembly (1) is provided with a second mounting groove (102). The differential assembly (1) is placed between two adjacent fixing parts (301) and the two adjacent fixing parts (301) are inserted into the second mounting groove (102).

11. The differential component module according to claim 10, characterized in that, The middle shell (2) is provided with a fixing plate mounting platform (204), and the fixing plate (3) is mounted on the fixing plate mounting platform (204).

12. The differential component module according to claim 9, characterized in that, The fixing structure is a fixing block (211) set on the vertical rib (205). The fixing block (211) is provided on both sides of each first mounting groove (206). Each differential component (1) is pre-fixed in the first mounting groove (206) by the fixing blocks (211) on both sides.

13. The differential component module according to claim 2, characterized in that, The support (212) is also provided with a cable groove (209), which is connected to the first mounting groove (206) and is used to accommodate and position the differential cable (105) of the differential component (1).

14. A cable connector, characterized in that, include: One outer shell (5); Multiple differential component modules as described in any one of claims 1-13, wherein the multiple differential component modules are stacked within the housing (5); and At least one wire harness (6) passes through the outer shell (5) and engages with multiple inner shells (2) to secure the stacked differential component modules together within the outer shell (5).

15. The cable connector according to claim 14, characterized in that, The outer casing (5) is provided with multiple rows of mounting holes (501), each of the mounting holes (501) being used for one of the differential components (1) to pass through; the multiple rows of mounting holes (501) are staggered.

16. The cable connector according to claim 15, characterized in that, The outer shell (5) is also provided with a plurality of limiting grooves (503), each of the limiting grooves (503) corresponding to a row of mounting holes (501), and each of the limiting grooves (503) is used to accommodate and limit one of the middle shells (2); the multiple rows of mounting holes (501) are staggered, so that the plurality of limiting grooves (503) are staggered, thereby so that the plurality of middle shells (2) are staggered within the outer shell (5).

17. The cable connector according to claim 16, characterized in that, The wire harness (6) includes a plurality of spaced racks (601), which extend in a direction perpendicular to the stacking of the differential component modules. The racks (601) pass through the fixing holes (502) on the outer shell (5) and engage with the fixing grooves (210) on the middle shell (2). The fixing grooves (210) are located on the side of the support portion (212) of the middle shell (2).

18. The cable connector according to claim 17, characterized in that, Multiple racks (601) are arranged in alternating lengths to accommodate the staggered middle housing (2), so that a single wire bundle (6) simultaneously engages with the fixing grooves (210) of multiple layers of the middle housing (2).

19. The cable connector according to claim 17, characterized in that, The rack (601) is provided with an outward protrusion (602), and the rack (601) is interference-fitted with the fixing hole (502) on the outer shell (5) through the protrusion (602).

20. The cable connector according to claim 15, characterized in that, The differential assembly (1) includes a differential cable (105), a contact (106), an upper shield (103), and a U-shaped shield (101). The end of the differential cable (105) is electrically connected to the contact (106). The upper shield (103) and the U-shaped shield (101) are connected to form a cylindrical shielding structure that wraps around the contact (106).

21. The cable connector according to claim 20, characterized in that, The tail of the upper shielding sheet (103) and / or the U-shaped shielding sheet (101) is bent to form the sealant (104); when the differential assembly (1) is installed in place, the sealant (104) abuts against the baffle (202).

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