A corner connector

Abstract

The present application relates to the technical field of conductive connecting device, in particular to a corner connector. The corner connector comprises a shielding shell and a terminal. The shielding shell comprises a corner shielding shell body and a wire pressing shielding shell body. One of the corner shielding shell body and the wire pressing shielding shell body is provided with a connecting end part, and the other is provided with a connecting cavity part for accommodating the connecting end part. The connecting cavity part is provided with a crimping structure for crimping and fixing the connecting end part. The inner wall of the connecting cavity part and / or the outer wall of the connecting end part is provided with a wire slot for adapting to two core wires of a differential cable to fix the two core wires when the connecting cavity part and the connecting end part are crimped. The crimping and fixing connecting structure of the two-part shell body cooperated with the wire slot integrated on the shielding shell keeps the relative position of the exposed parts of the two core wires of the cable, and the number of parts is small, which is conducive to reducing the manufacturing cost of the connector.

Description

Technical Field

[0001] This invention relates to the field of conductive connection device technology, and more specifically to a corner connector. Background Technology

[0002] As the level of intelligent driving in automobiles continues to improve, the number of intelligent network devices in vehicles is also gradually increasing, and the amount of data exchanged between these devices is also growing. As a result, the application of high-speed connectors that can transmit data at high speed is increasing. High-speed connectors mostly use Ethernet connectors that transmit differential signals.

[0003] Connectors are used to connect differential cables. To accommodate the vertical cable exit, angle connectors are generally used. The insertion direction of the angle connector is generally perpendicular to the cable exit direction. An angle connector typically includes an outer conductor, an insulator fixedly installed in the outer conductor, and an inner conductor fixedly installed in the insulator. The inner conductor is the terminal. The terminals are arranged in pairs to form a differential pair. The two terminals of the differential pair are crimped to the two cores of the differential cable. The outer conductor is the shielding shell, which forms a shield around the terminals and cores. To facilitate the assembly process of the angle connector and cable, the shielding shell is usually assembled from multiple separate shells. The shielding shell includes an angle shielding shell and a crimping shielding shell. The angle shielding shell includes two vertically arranged parts. One part extends forward along the connector insertion direction and allows the terminals and insulator to be inserted from the rear. The other part extends vertically downward and connects to the crimping shielding shell. The crimping shielding shell has a structure for crimping and fixing the cable. The cable is crimped to the rear end of the terminal. The extension direction of the cable is perpendicular to the orientation of the connector insertion end, adapting to the angle connector form.

[0004] Differential cables consist of an insulating outer sheath, a shielding layer, and two core wires. Each core wire includes an insulating sheath and a conductor core within the sheath. When connecting the angle connector to the cable, the insulating outer sheath of the cable must be stripped, the two core wires separated, and the conductor core of the core wire crimped to the terminal. A shielding crimping ring is then fitted onto the cable, causing the shielding layer of the stripped portion of the cable's outer sheath to fold outwards and onto the outer edge of the shielding crimping ring. After the terminal, cable, insulator, and shielding crimping ring are installed into the shielding shell, the wire-pressing shielding shell is used to press the shielding crimping ring for fixation. The wire-pressing shielding shell and the shielding crimping ring clamp the cable's shielding layer, achieving a conductive connection between the shielding shell and the cable's shielding layer. To ensure a reliable connection between the cable's shielding layer and the shielding shell, the outer portion of the cable's shielding layer is relatively long. This means that a longer portion of the outer sheath needs to be stripped during cable fabrication, resulting in a longer exposed portion of the core wires. To maintain the relative position of the two exposed core wires, shielding clamps are commonly used. These clamps are used to fix the two core wires and are inserted into the shielding shell along with the cable. The shielding shell then presses the clamps into place using corresponding parts of the shell. The shielding shell secures the clamps, and the clamps maintain the spacing between the two core wires, reducing the impact of changes in the spacing between the two core wires on the channel impedance.

[0005] The structure of the aforementioned corner connector, which maintains the relative positions of the two exposed core wires of the cable, requires the separate fabrication of shielding clamps, resulting in higher costs. Furthermore, during connector assembly, it is necessary to perform operations such as fixing the core wires with shielding clamps and pressing the shielding housing onto the shielding clamps, which is not conducive to ease of operation. Summary of the Invention

[0006] The purpose of this invention is to provide a corner connector to solve the problem of high structural cost of current corner connectors that use separate shielded clamps to maintain the relative positions of the two exposed cores of the cable.

[0007] The technical solution of the corner connector of the present invention is as follows:

[0008] A corner connector includes a shielding shell and two terminals arranged in pairs. The shielding shell includes a corner shielding shell and a wire-pressing shielding shell. The corner shielding shell has a portion for shielding the connection between the terminal and the core wire of the differential cable. The wire-pressing shielding shell has a portion for crimping the shielding layer of the differential cable. One of the corner shielding shell and the wire-pressing shielding shell has a connecting end, and the other has a connecting cavity for inserting the connecting end. The connecting cavity has a crimping structure for crimping and fixing the connecting end. The inner wall of the connecting cavity and / or the outer wall of the connecting end has a groove for accommodating and installing the two core wires of the differential cable to fix the two core wires when the connecting cavity is crimped with the connecting end.

[0009] Beneficial effects: This invention omits key elements from existing corner connectors, allowing the corner shielding shell and the wire-pressing shielding shell to be crimped and fixed together through their connecting ends and connecting cavities. The crimping structure connects the two separate shielding shells, and a wire groove is provided at the crimping structure. After the two core wires of the differential cable are inserted into the wire groove, the two core wires are fixed by the crimping between the connecting ends and the connecting cavity. In other words, the wire groove integrated on the shielding shell, together with the crimping and fixing connection structure of the two shell parts, maintains the relative position of the exposed parts of the two core wires of the cable. With fewer parts, it is beneficial to reduce the manufacturing cost of the connector.

[0010] Furthermore, the connecting end is disposed on the corner shield housing and the wire groove is disposed on the connecting end, the connecting cavity is disposed on the wire shield housing, and the connecting cavity includes two oppositely disposed crimping wings, the two crimping wings constitute the crimping structure, and the two crimping wings are used to close and deform during crimping and to mate at the wire groove.

[0011] Furthermore, the corner shield housing is provided with an inlet for inserting the insulator with the terminals of the corner connector. A shielding baffle is provided at the inlet. The shielding baffle is provided with a baffle pressing part for extending to the wire groove and into the connection cavity. The baffle pressing part is fixed together with the connection end and the connection cavity by pressing. The pressing wing presses the baffle pressing part to press the two core wires.

[0012] Furthermore, the baffle pressing portion is bent toward the inside of the wire groove relative to the main body of the shielding baffle.

[0013] Furthermore, the entrance of the corner shield housing is provided with a structure that is pressed and fixed to the main body of the shield baffle.

[0014] Furthermore, the baffle pressing part extends from the main body of the shielding baffle, and the width of the main body of the shielding baffle is greater than the width of the baffle pressing part.

[0015] Furthermore, the connecting end has a plane facing away from the corner connector insertion end, and the wire groove is disposed on the plane.

[0016] Furthermore, the wire-pressed shielding shell is a stamped part, while the corner shielding shell is a die-cast part.

[0017] Furthermore, the groove depth of the wire groove on the corner shield housing is not less than half the outer diameter of the core wire.

[0018] Furthermore, the groove is provided with a limiting protrusion for extending into the gap between the two core wires. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the structure of an embodiment of the corner connector of the present invention;

[0020] Figure 2 for Figure 1 Exploded view of the corner connector in the image;

[0021] Figure 3 for Figure 1 A schematic diagram of the structure when the pressure wire shielding shell and the corner shielding shell are separated;

[0022] Figure 4 for Figure 1 A schematic diagram of the installation structure of the pressure wire shielding shell, corner shielding shell and contact shielding shell;

[0023] Figure 5 for Figure 4 Cross-sectional views of each shielding enclosure;

[0024] Figure 6 for Figure 1 A three-dimensional schematic diagram of the rear view of the bent high-speed data connector with the insulating shell and shield removed and the insulating cover plate not bent.

[0025] Figure 7 for Figure 1 A three-dimensional schematic diagram of the rear view of the bent high-speed data connector after removing the insulating shell and shielding baffle and bending the insulating cover.

[0026] Figure 8 for Figure 1 A three-dimensional schematic diagram of the rear view of the bent high-speed data connector with the insulating shell removed and the crimping wings not crimped.

[0027] Figure 9 for Figure 4 Rear view of each shielding enclosure;

[0028] Figure 10 for Figure 2 A schematic diagram showing the terminals when they are not bent.

[0029] Figure 11 for Figure 2 A schematic diagram of the terminals after bending;

[0030] Figure 12 for Figure 1 A cross-sectional view of the corner connector with the insulating shell and shielding baffle removed and the insulating cover plate not bent.

[0031] Figure 13 for Figure 1 Rear view of the corner connector with the insulating shell and shielding plate removed and the insulating cover plate not bent.

[0032] Figure 14 for Figure 1 A cross-sectional view of the corner connector after removing the insulating shell and shielding plate, and bending the insulating cover plate.

[0033] Figure 15 for Figure 1 The rear view of the corner connector after removing the insulating shell and shielding plate, and bending the insulating cover plate;

[0034] Figure 16 for Figure 1 A cross-sectional view of the corner connector with the insulating shell removed and the crimping wings not crimped;

[0035] Figure 17 for Figure 1 Rear view of the corner connector with the insulating shell removed and the crimping wings not crimped;

[0036] Figure 18 for Figure 1 A cross-sectional view of the corner connector after removing the insulating shell and crimping the crimp wings;

[0037] Figure 19 for Figure 1 The rear view of the corner connector after removing the insulating shell and crimping the crimp wings;

[0038] Figure 20 for Figure 13 A schematic diagram of the terminal and cable connection point;

[0039] Figure 21 for Figure 2 Rear view of the insulator in the middle;

[0040] Figure 22 for Figure 2 A cross-sectional view of the insulator in the image;

[0041] Figure 23 for Figure 1 A front view of the corner connector in the image;

[0042] Figure 24 for Figure 1 A cross-sectional view of the corner connector.

[0043] In the picture:

[0044] 1. Insulating outer shell; 11. Snap-fit ​​spring arm; 12. Stopping surface;

[0045] 2. Wire-crimped shielding housing; 21. Connecting cavity; 210. Crimping wing; 211. First groove; 212. Second groove; 22. Shielding crimping part; 23. Outer sheath crimping part;

[0046] 3. Corner shielding housing; 31. Connecting end; 32. Adapter end; 311. First protrusion; 312. Second protrusion; 33. Snap-fit ​​boss; 34. Riveting part; 35. Cable groove; 351. Limiting protrusion;

[0047] 4. Contact shielding housing;

[0048] 5. Shielding baffle; 51. Baffle crimping part;

[0049] 6. Shielding crimp ring;

[0050] 7. Terminal; 71. Wiring section; 72. Plug-in section;

[0051] 8. Insulator; 81. Insulating cover plate; 82. Guide boss; 83. Terminal mounting hole; 84. Insertion section; 85. Corner section; 86. Receiving groove; 87. Inclined sidewall;

[0052] 9. Cable; 91. Conductor core; 92. Insulating sheath. Detailed Implementation

[0053] The corner connector of the present invention utilizes the wire groove integrated on the shielding shell and the crimping and fixing connection structure of the two shell parts to maintain the relative position of the exposed parts of the two core wires of the cable. It has fewer parts, which helps to reduce the manufacturing cost of the connector and facilitates the connector assembly operation.

[0054] Embodiments of the corner connector of the present invention:

[0055] The corner connector includes a shielding shell and two paired terminals. The shielding shell includes a corner shielding shell and a wire-pressing shielding shell. The corner shielding shell has a portion for shielding the connection between the terminal and the core wire of the differential cable. The wire-pressing shielding shell has a portion for crimping the shielding layer of the differential cable. The corner shielding shell has a connecting end, and the wire-pressing shielding shell has a connecting cavity for inserting the connecting end. The connecting cavity has a crimping structure for crimping and fixing the connecting end. The inner wall of the connecting cavity and / or the outer wall of the connecting end has a groove for accommodating the two core wires of the differential cable to fix the two core wires of the differential cable when the connecting cavity and the connecting end are crimped. The groove on the shielding shell, together with the crimping structure of the two shells, maintains the relative position of the exposed parts of the two core wires of the cable, reducing the impact of the change in the spacing between the two core wires on the channel impedance.

[0056] Specifically, such as Figure 1 , Figure 2As shown, the corner connector includes an insulating shell 1, a shielding structure, an insulator 8, and terminals 7. The shielding structure includes a shielding shell, a shielding baffle 5, and a shielding crimping ring 6. The shielding shell includes a separately configured wire-pressing shielding shell 2, a corner shielding shell 3, and a contact shielding shell 4. Two terminals 7 are provided, forming a differential pair for transmitting differential signals. Terminals 7 are installed inside the insulator 8, and the terminals 7 and the insulator 8 are integrally installed inside the shielding shell. The shielding shell is installed inside the insulating shell 1. The insulating shell 1 has a forward-facing insertion port for the adapter connector to insert into and make contact with the terminals 7 and the shielding shell, achieving signal conduction and shielding conduction.

[0057] This corner connector is a right-angle connector. The insertion direction of the connector is perpendicular to the outgoing direction. The head end and tail end of the connector are perpendicular to each other. The head end of the connector is defined to face forward and the tail end to face downward. The head end is the insertion end for mating with the adapter connector, and the tail end is used for wiring.

[0058] Combination Figure 3 , Figure 4 , Figure 5 The wire-crimped shielding housing 2 has a connecting cavity 21, and the corner shielding housing 3 has a connecting end 31. The connecting end 31 is inserted into the connecting cavity 21 and fixed by crimping. The connecting cavity 21 has a crimping structure for crimping and fixing the connecting end 31, so that the wire-crimped shielding housing 2 and the corner shielding housing 3 are fixedly connected by crimping. The corner shielding housing 3 is located at the corner of the connector. The corner shielding housing 3 includes two mutually perpendicular parts, one extending vertically and the other extending forward and backward. The front end of the forward and backward extension part has an adapter end 32, which is used to connect to the contact shielding housing 4. The connecting end 31 is located at the lower end of the vertical extension part. The orientation of the adapter end 32 is perpendicular to the orientation of the connecting end 31. The adapter end 32 faces forward and the connecting end 31 faces downward, so as to realize the vertical change of the head and tail of the corner connector.

[0059] The contact shield housing 4 is inserted into the corner shield housing 3 from the adapter end 32. The contact shield housing 4 extends in the front-to-back direction and has a part that protrudes forward from the corner shield housing 3. This part is provided with a shielding connection structure for the shielding component of the adapter connector to contact. The corner shield housing 3 is provided with a riveting part 34. After the contact shield housing 4 is inserted into the corner shield housing 3, the contact shield housing 4 is fixed to the corner shield housing 3 by riveting at the riveting part 34. The riveting here adopts a rivetless riveting process, that is, the riveting part 34 is stamped to make the corresponding parts of the corner shield housing 3 and the contact shield housing 4 concave and deformed to achieve a fixed connection.

[0060] Combination Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10, Figure 11 , Figure 12 , Figure 13 Terminal 7 includes a plug section 72 and a wiring section 71 arranged at an angle. The plug section 72 extends in the front-to-back direction and forms the main body of terminal 7. The wiring section 71 is located at the rear end of the plug section 72 and bends downward. The end of the plug section 72 away from the wiring section 71 is provided with a socket structure for plugging with an adapter connector. The wiring section 71 is used to crimp the core wire of the cable 9. After the connector is assembled, the plug section 72 and the wiring section 71 are arranged at an angle of 90°.

[0061] Cable 9 is a differential cable used to transmit differential signals. Cable 9 includes an outer sheath, a shielding layer, and core wires. The outer sheath is an insulating rubber sheath. There are two core wires, each including an insulating sheath 92 and a conductor core 91. The conductor cores 91 form the wire core. The two conductor cores 91 are used to transmit differential signals. The two conductor cores 91 are respectively connected to two terminals 7. The part of the conductor core 91 that is not crimped by the terminal segment 71 is wrapped by the insulating sheath 92. The shielding layer is located between the two core wires and the outer sheath. During cable making, a section of the outer sheath of cable 9 is stripped off, and the shielding crimping ring 6 is crimped and fixed to the outer sheath of cable 9. The shielding layer of cable 9 is turned outward and folded to the outside of the shielding crimping ring 6. The shielding crimping ring 6 is inserted into the wire crimping shielding housing 2, and the wire crimping shielding housing 2 clamps the shielding layer, while the two core wires of cable 9 extend into the corner shielding housing 3.

[0062] The main body of terminal 7 is arranged in the front-to-back direction, and cable 9 is arranged in the vertical direction. The upper end of cable 9 is crimped and fixed to the rear end of terminal 7. The rear side of corner shield housing 3 away from the adapter end 32 is provided with an inlet for inserting terminal 7 and insulator 8 into corner shield housing 3. The inlet is open to the rear. Insulator 8 is inserted into corner shield housing 3 from back to front through the inlet and extends into contact shield housing 4. Terminal 7 is inserted into insulator 8 from back to front. The part of terminal 7 that connects to cable 9 is located at the rear of corner shield housing 3. Insulator 8 includes an insertion section 84 and a corner section 85 arranged at an angle. Insertion section 84 and corner section 85 are arranged perpendicularly to form a 90° angle. Insertion section 84 extends in the front-to-back direction and is inserted into the front of corner shield housing 3 and contact shield housing 4. Corner section 85 is located at the rear end of insertion section 84 and extends downward based on insertion section 84. Corner section 85 is inserted into the rear of corner shield housing 3. The insertion section 72 of terminal 7 is inserted into the insertion section 84 of insulator 8, and the wiring section 71 of terminal 7 is installed into the corner section 85 of insulator 8. In other embodiments, the angle between the insertion section and the corner section of the insulator can be 120° or 150°, etc., as needed, to accommodate corner connectors with different angles. Accordingly, the angle between the insertion section and the wiring section of the terminal is adapted to change, and the relative orientation of the transition end of the corner shielding housing to the orientation of the connection end is adapted to change.

[0063] When assembling the connector, first assemble the wire-crimping shield housing 2, the corner shield housing 3, and the contact shield housing 4 into a component, and then insert the insulator 8. At the same time, make a separate wire, crimp the conductor core 91 of the cable 9 to the terminal 7, bend the rear end of the terminal 7 and insert it into the insulator 8, insert the insulator 8 into the shield housing, bend the tail cover of the insulator 8, insert the shield baffle 5, then crimp the wire-crimping shield housing 2, and finally insert the whole assembly into the insulating shell 1.

[0064] The corner shielding housing 3 has a portion for shielding the connection between the terminal 7 and the conductor core 91 of the differential cable, and the crimp shielding housing 2 has a portion for crimping the shielding layer of the differential cable. The connecting end 31 of the corner shielding housing 3 is provided with a groove 35 for accommodating the two cores of the differential cable to fix the two cores of the cable 9 when the connecting cavity 21 is crimped with the connecting end 31. The two separate shielding housings are connected by a crimping structure, and a groove 35 is provided at the crimping structure. The groove 35 communicates with the cavity at the rear of the corner shielding housing 3 for the insulator 8 to be inserted. The groove 35 is used to insert the exposed portions of the two cores of the cable 9 and allow the cores to extend from the connecting cavity 21 to the rear of the corner shielding housing 3. A portion of the two cores of the cable 9 between the outer sheath and the terminal 7 is inserted into the groove 35. The portions of the two cores of the cable 9 after passing through the groove 35 are bent and separated, and the spacing is increased to accommodate the spacing of the plug sections 72 of the two terminals 7. After the two core wires of cable 9 are inserted into the wire groove 35, the two core wires are fixed by the crimping of the connecting end 31 and the connecting cavity 21. This achieves the relative position of the exposed parts of the two core wires of cable 9 by using the wire groove 35 integrated on the shielding shell and the crimping and fixing connection structure of the two shell parts. The fewer parts are beneficial to reducing the manufacturing cost of the connector and facilitating assembly operations.

[0065] The connecting end 31 is disposed on the corner shield housing 3, the wire groove 35 is disposed on the connecting end 31, and the connecting cavity 21 is disposed on the wire pressing shield housing 2. The connecting cavity 21 includes two crimping wings 210 disposed opposite to each other and a connecting part connecting the two crimping wings 210. The two crimping wings 210 constitute the crimping structure. The two crimping wings 210 are cantilever structures. The root of the cantilever is connected to the connecting part. The end of the cantilever closes during crimping. When not crimped, the two crimping wings 210 face backward. The wire pressing shield housing 2 moves from front to back relative to the corner shield housing 3 so that the connecting cavity 21 fits onto the connecting end 31. The two crimping wings 210 are used to close and deform during crimping and press tightly against the rear side of the connecting end 31. After the two crimping wings 210 close and deform, they are joined at the wire groove 35 so as to provide a fixing force on the core wire in the wire groove 35 through the crimping wings 210. In other embodiments, the two crimping wings of the connecting cavity can be positioned facing forward when not crimped, and the wire-pressing shielding shell can be positioned relative to the corner shielding shell from back to front so that the connecting cavity fits onto the connecting end. In this case, the connecting part of the two crimping wings of the connecting cavity can be directly opposite the wire groove to provide a fixing force for the core wire in the wire groove. The connecting part of the connecting cavity can also be provided with a wire groove, so as to cooperate with the wire groove at the connecting end to clamp the two core wires of the cable. Alternatively, the wire groove can not be provided at the connecting end, but only on the inner wall of the connecting part of the connecting cavity to cooperate with the rear side of the connecting end to clamp the cable. In this case, the shielding baffle can be integrally set with the wire-pressing shielding shell. In other embodiments, the connecting end can be disposed on the wire-pressing shield housing, and the connecting cavity can be disposed on the corner shield housing. When not crimped, the openings formed by the two crimping wings of the connecting cavity of the corner shield housing face backward, while the opening of the part of the connecting end of the wire-pressing shield housing used for crimping the cable faces forward. The connecting end of the wire-pressing shield housing is configured as a plate-like structure and is integrally disposed with the shielding baffle. The inner wall of the connecting cavity of the corner shield housing forms a wire groove. After the two core wires of the differential cable are inserted into the wire groove, the plate-like connecting end of the wire-pressing shield housing is inserted into the connecting cavity. The plate-like connecting end is pressed against the core wires by closing the two crimping wings.

[0066] Combination Figure 14 , Figure 15 , Figure 16 , Figure 17 , Figure 18 , Figure 19A shielding baffle 5 is provided at the loading entrance of the corner shielding housing 3 for inserting the terminal 7 and the insulator 8. The shielding baffle 5 has a baffle pressing part 51 for extending to the wire groove 35 and into the connecting cavity 21. The baffle pressing part 51 is fixed together with the connecting end 31 and the connecting cavity 21 by pressing. The pressing wing 210 presses the baffle pressing part 51 to press the two core wires. The baffle pressing part 51 of the shielding baffle 5 is placed between the core wire and the pressing wing 210, which is conducive to reliable pressing and reliable fixing of the shielding baffle 5. In other embodiments, the shielding baffle may not have a baffle pressing part, and the pressing wing directly presses on the core wire.

[0067] A shielding baffle 5 is installed at the rearward mounting entrance of the corner shielding housing 3 to ensure effective shielding at the connection point between the cable 9 and the terminal 7, while also providing reliable core wire fixation. The shielding baffle 5 includes a main body and a baffle crimping portion 51 extending downward from the main body. The crimping wing 210 of the connecting cavity 21 deforms and presses against the baffle crimping portion 51. The baffle crimping portion 51 of the shielding baffle 5 protrudes towards the connecting end 31 relative to the main body, i.e., it is vertically offset from the main body. The baffle crimping portion 51 bends towards the wire groove 35 relative to the main body of the shielding baffle 5. After the crimping wing 210 of the connecting cavity 21 deforms, it presses against the rear side of the baffle crimping portion 51, which avoids the crimping wing 210 protruding too high after crimping, saving space. In other embodiments, the baffle crimping portion of the shielding baffle can also be flush with the main body.

[0068] The corner shielding housing 3 has a structure at its loading entrance that is press-fitted and fixed to the main body of the shielding baffle 5, which facilitates shielding conduction between the shielding baffle 5 and the corner shielding housing 3 and ensures reliable fixation. In other embodiments, the shielding baffle may not be press-fitted to the loading entrance of the corner shielding housing, but may be fixed solely by the pressing of the pressing wings.

[0069] The width of the connecting end 31 in the left-right direction is less than the width of the installation entrance of the corner shield housing 3. The main body of the shield baffle 5 is adapted to be installed into the rearward installation entrance of the corner shield housing 3, and the baffle pressing part 51 of the shield baffle 5 is adapted to be installed into the wire groove 35. The width of the main body of the shield baffle 5 is greater than the width of the baffle pressing part 51, saving space occupied by the shield baffle 5 and facilitating the installation of the pressing structure. In other embodiments, if space permits, the width of the main body of the shield baffle can also be equal to the width of the baffle pressing part.

[0070] The connecting end 31 has a forward-facing arcuate surface to accommodate the arcuate connecting portion of the connecting cavity 21. The connecting end 31 also has a rearward-facing flat plane facing away from the corner connector insertion end, with the connector insertion end facing forward. A wire groove 35 is disposed on this flat plane with its opening facing rearward. The wire groove 35 extends vertically and communicates with the cavity of the corner connector that has an insertion port. Using a flat plane for the wire groove 35 facilitates shaping. In other embodiments, the connecting end can also have a rearward-facing arcuate surface, with the wire groove disposed on the arcuate surface, ensuring sufficient compression of the core wire.

[0071] The depth of the wire groove 35 is greater than the outer diameter of the core wire of the cable 9, allowing the two core wires to be inserted side by side into the wire groove 35. Simultaneously, when compressed, the baffle pressing portion 51 of the shielding baffle 5 extends into the wire groove 35, facilitating reliable positioning and a stable pressing connection. In other embodiments, the depth of the wire groove can be slightly greater than half the outer diameter of the core wire to provide good positioning for the two core wires.

[0072] The cable trough 35 is provided with a limiting protrusion 351 for extending into the gap between the two core wires of the cable 9. The limiting protrusion 351 adapts to the gap between the two core wires of the cable 9, which helps to provide reliable support and make the insulation sheath 92 of the core wires evenly stressed. In other embodiments, the limiting protrusion may not be provided.

[0073] Both the wire-pressed shielding shell 2 and the contact shielding shell 4 are stamped parts, while the corner shielding shell 3 is a die-cast part. Using die-cast parts can reduce the forming difficulty of the shielding shell and reduce the manufacturing cost. In other embodiments, the wire-pressed shielding shell, the corner shielding shell, and the contact shielding shell can also all be stamped parts.

[0074] The wire-crimping shield housing 2 includes a housing crimping part, a shielding crimping part 22, and an outer sheath crimping part 23 arranged sequentially from top to bottom. The housing crimping part, i.e. the connecting cavity part 21, is used to crimp the corner shield housing 3. The shielding crimping part 22 is used to crimp the shielding layer of the cable 9. The outer sheath crimping part 23 is used to crimp and fix it to the outer sheath of the cable 9. The extension direction of the connecting cavity 21 of the wire-crimping shield housing 2 is vertical. When the crimping wing 210 of the connecting cavity 21 is not crimped, the connecting end 31, the cable 9, and the baffle crimping part 51 can enter from the rearward opening of the connecting cavity 21. After the crimping wing 210 of the connecting cavity 21 is crimped, the part of the crimping wing 210 located behind the connecting end 31 bends and deforms, pressing and fixing the connecting end 31 and the baffle crimping part 51. The crimping and fixing part of the crimping wing 210 is on the side of the corner shield housing 3 with the installation entrance. The side opening of the wire-crimping shield housing 2 and the installation entrance of the corner shield housing 3 are both set to face rearward, which facilitates the installation operation.

[0075] The conductor core 91 of cable 9 is crimped to terminal 7, and then terminal 7 and cable 9 are installed together on the shielding shell. Terminal 7 is inserted into the terminal mounting cavity of the insertion section 84 of insulator 8. The two core wires of cable 9 are respectively clamped in the wire groove 35 of the connecting end 31. The shielding crimping ring 6 is installed into the shielding crimping part 22 of the wire crimping shielding shell 2. The shielding layer of cable 9 and shielding crimping ring 6 are crimped and fixed by the shielding crimping part 22. The baffle crimping part 51 of shielding baffle 5 is blocked at the wire groove 35 of connecting end 31. The baffle crimping part 51 of shielding baffle 5 is pressed tightly against the core wire of cable 9 by the crimping fixation of connecting cavity 21 to maintain the fixed position of the core wire, which can play a role in adjusting impedance.

[0076] Each of the two crimping wings 210 has a first groove 211, and the connecting end 31 has a first protrusion 311 that matches the first groove 211. The two first grooves 211 and the two first protrusions 311 form a limiting fit. The connecting part of the connecting cavity 21 has a second groove 212, and correspondingly, the connecting end 31 has a second protrusion 312 that matches the second groove 212. When the ends of the two crimping wings 210, which are away from the connecting part, are not crimped into the connecting end 31, they form a side opening for the connecting end 31 to extend into the connecting cavity 21. When the crimping wings 210 are not crimped, a large side opening can be formed between the ends of the two crimping wings 210. The connecting end 31 can enter the connecting cavity 21 through the side opening, and the first protrusion 311 is engaged in the first groove 211, and the second protrusion 312 is engaged in the second groove 212. After being installed in place, the two crimping wings 210 can be deformed by closing them together, and the ends of the two crimping wings 210 are brought together. The crimping wings 210 are deformed and pressed against the connecting end 31. The connecting cavity 21 is fixedly connected to the connecting end 31 by crimping, and the limiting protrusion and the limiting cavity cooperate to achieve axial and radial anti-detachment connection. After the first protrusion 311 is engaged in the first groove 211, it can achieve a stop and limit in the front and rear direction. After the second protrusion 312 is engaged in the second groove 212, it can achieve a stop and limit in the vertical direction.

[0077] The first protrusion 311 has a guide surface that guides the outward expansion deformation of the crimping wing 210 when the connecting end 31 extends into the connecting cavity 21 from the side opening. The guide surface is inclined, guiding the crimping wing 210 to expand outward before the first protrusion 311 enters the first groove 211 to facilitate the installation operation. The protrusion direction of the second protrusion 312 is opposite to the orientation of the side opening when the connecting end 31 is inserted into the connecting cavity 21 from the side opening. The second protrusion 312 and the second groove 212 are directly opposite in the direction in which the connecting end 31 is inserted into the connecting cavity 21, so that the second protrusion 312 directly enters the second groove 212 during installation, which facilitates the installation operation. The first groove 211 and the second groove 212 are both through grooves that extend through the wall thickness direction of the connecting cavity 21. The first groove 211 and the second groove 212 are both rectangular grooves, and the corresponding protrusions and grooves are adapted to each other so that the limiting cavity has a side wall for anti-rotation engagement with the limiting protrusion, which is beneficial to ensuring the installation position of the wire shielding shell 2 and the corner shielding shell 3. After the first protrusion 311 is engaged with the first groove 211, the rearward side of the first protrusion 311 and the front sidewall of the first groove 211 form a front-rear stop fit perpendicular to the extension direction of the connecting cavity 21. After the second protrusion 312 is engaged with the second groove 212, the upper side of the second protrusion 312 and the lower sidewall of the second groove 212 form an upper-lower stop fit along the extension direction of the connecting cavity 21. At the points where the corresponding protrusions and grooves form the front-rear stop fit, there may be a small gap in the vertical direction; at the points where the upper-lower stop fit is formed, there may be a small gap in the horizontal direction.

[0078] Combination Figure 20 , Figure 21 , Figure 22 The insertion section 84 of the insulator 8 has a mounting cavity for the insertion section 72 of the terminal 7 to be inserted. The mounting cavity is the terminal mounting hole 83, which is open from front to back. The rear side of the corner section 85 facing away from the connector insertion end has a receiving groove 86 for the insertion of the wire segment 71. There are two receiving grooves 86 corresponding to the terminal 7. There are two on the left and right sides of the terminal 7. There are two receiving grooves 86 on the left and right sides of the receiving groove 86. The receiving grooves 86 are open from top to bottom and the groove openings face backward. The receiving grooves 86 correspond one-to-one with the terminal mounting holes 83. The upper end of the receiving groove 86 is open to the terminal mounting hole 83. After the wire segment 71 of the terminal 7 is crimped and bent with the conductor core 91 of the cable 9, it is installed into the insulator 8. The part of the wire segment 71 and the part of the conductor core 91 wrapped by the wire segment 71 are installed into the receiving groove 86 together. The two core wires of the cable 9 extend into the corresponding receiving grooves 86 of the corner section 85 of the insulator 8.

[0079] Each mounting slot 86 has two opposing side walls. The adjacent side walls of two mounting slots 86 are inclined to form inclined sidewalls 87. The two mounting slots 86 are symmetrically arranged, and the inclined sidewalls 87 are V-shaped. The inclined sidewalls 87 of the two mounting slots 86 are opposite to each other, and the distance between them gradually decreases along the direction away from the terminal mounting hole 83. That is, the distance between the adjacent side walls of the two mounting slots 86 gradually decreases from top to bottom. The wiring segment 71 of the terminal 7 is inclinedly arranged within the mounting slot 86, and the distance between the wiring segments 71 of the two terminals 7 gradually decreases along the direction away from the insertion segment 72. The distance between the wiring segments 71 of the two terminals 7 gradually decreases from top to bottom. Correspondingly, this makes the cable 9... The portion of conductor core 91 that is crimped with terminal segment 71 is tilted. The state of conductor core 91 in the diagram is for illustrative purposes only and does not represent its actual usage. After actual crimping, the portion of conductor core 91 within the insulator 8 is tilted. The distance between the two conductor cores 91 of cable 9 and the crimped portion of terminal 7 gradually increases from bottom to top, adapting to the change in the distance between the two conductor cores of the lower cable 9 and the spacing of the insertion segments 72 of the two terminals 7 above. The distance between the two conductor cores of cable 9 at the wire groove 35 is smaller than the distance at the receiving groove 86. The two conductor cores of cable 9 are close together at the wire groove 35 to match the portion inside the outer sheath. The shielding shell has a necking structure at the wire groove 35 to accommodate shielding at that location and improve impedance. Utilizing the tilted terminal segment 71 of terminal 7 in conjunction with the conductor cores within the receiving groove 86 to transition the distance between the two conductor cores and the insertion segments 72 of the two terminals 7 helps to increase the length of the transition portion of the conductor cores, avoiding large bending angles that could cause abrupt changes in spacing. Adjusting the wire spacing and the angle of the two conductor cores helps to improve impedance and ensure transmission performance.

[0080] The portion of the insulator 8 located between the two mounting grooves 86 forms a guide boss 82. The adjacent groove walls of the two mounting grooves 86 form two sides of the guide boss 82 in the width direction. These two sides are also symmetrical inclined side walls 87. The width of the guide boss 82 gradually decreases in the direction away from the terminal mounting hole 83, that is, the width of the guide boss 82 gradually decreases from top to bottom in the left-right direction, so that the distance between the two conductor cores 91 of the cable 9 gradually increases from bottom to top. The lower end of the guide boss 82 is a tip. The tip of the guide boss 82 extends between the insulating sheaths 92 outside the two conductor cores 91. The insulating sheaths 92 have a portion that extends into the mounting groove 86. The tip of the guide boss 82 is used to limit the core wire of the cable 9 so as to guide the bending and deformation of the core wire of the cable 9. The two mounting grooves 86 on the corner section 85 are arranged parallel to each other with their groove walls facing away from each other, so that the groove width of the mounting groove 86 gradually increases from top to bottom, which makes it easier to guide the cable 9 and the wiring section 71 of the terminal 7 into the mounting groove 86.

[0081] One end of the insulator 8 facing the connector insertion end is provided with an insulating cover plate 81 for covering the two mounting slots 86. The portion of the insulator 8 located between the two mounting slots 86 is lower in the slot depth direction than the portions located on opposite sides of the two mounting slots 86. The guide boss 82 is low in height and can avoid the insulating cover plate 81 so that it can be embedded in the insulator 8 when the insulating cover plate 81 covers the two mounting slots 86. The insulating cover plate 81 is integrally provided on the corner section 85 of the insulator 8. The corner section 85 and the insertion section 84 constitute the main body of the insulator 8. The root of the insulating cover plate 81 connected to the main body of the insulator 8 has a weak structure to facilitate covering the two mounting slots 86 by bending. The thickness of the weak structure is small, which facilitates the bending operation. After the terminal 7 and cable 9 are inserted into the insulator 8, the two mounting slots 86 are covered by bending the insulating cover plate 81, which can play a role in adjusting the impedance. To prevent the insulating cover plate 81 from rebounding after bending, the shielding baffle 5 can limit its position. After the shielding baffle 5 is fixed to the shielding shell, it is located on the rear side of the insulating cover plate 81 and is close to the insulating cover plate 81, so that the insulating cover plate 81 can be kept in the state of covering the two mounting grooves 86.

[0082] Before the terminals 7 and cable 9 are installed, the insulating cover plate 81 extends straight backward. After the terminals 7 and cable 9 are installed, the insulating cover plate 81 can be bent downward to extend downward, covering the connection between the conductor core 91 of the terminals 7 and cable 9, thus adjusting the impedance. The insulating cover plate 81 is integrally formed with the main body of the insulator 8, which reduces costs. After the shielding baffle 5 is installed, the shielding baffle 5 can limit the insulating cover plate 81 to maintain its downward extension, keeping the cover plate in a state that covers the two mounting slots 86.

[0083] Combination Figure 23 , Figure 24 The insulating outer shell 1 has snap-fit ​​spring arms 11 on its left and right side walls, with the snap-fit ​​spring arms 11 extending forward. The corner shielding shell 3 has snap-fit ​​bosses 33. When the corner shielding shell 3 is inserted into the insulating outer shell 1 from back to front, the snap-fit ​​spring arms 11 can snap onto the rear side of the snap-fit ​​bosses 33. On the front side of the snap-fit ​​bosses 33, the insulating outer shell 1 also has a rearward-facing stop surface 12. The snap-fit ​​spring arms 11 provide a rearward stop to the snap-fit ​​bosses 33, and the stop surface 12 provides a forward stop to the snap-fit ​​bosses 33, ensuring reliable assembly.

[0084] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A corner connector, characterized in that, The device includes a shielding shell and two terminals (7) arranged in pairs. The shielding shell includes a corner shielding shell (3) and a wire-pressing shielding shell (2). The corner shielding shell has a portion for shielding the conductor core connection between the terminal and the core wire of the differential cable. The wire-pressing shielding shell has a portion for pressing the shielding layer of the differential cable. One of the corner shielding shell and the wire-pressing shielding shell is provided with a connection end (31), and the other is provided with a connection cavity (21) for the connection end to be installed. The connection cavity is provided with a crimping structure for crimping and fixing the connection end. The inner wall of the connection cavity and / or the outer wall of the connection end are provided with a wire groove (35) for adapting to the installation of the two core wires of the differential cable so as to press the insulating sheath of the two core wires when the connection cavity is crimped with the connection end to fix the two core wires. The wire groove is for the two core wires to be installed side by side and the two core wires of the cable are attached to the part of the wire groove so as to be consistent with the part inside the cable sheath. The wire groove, together with the crimping structure of the shielding shell, maintains the relative position of the exposed part of the two core wires of the cable to reduce the influence of the change of the spacing between the two core wires on the channel impedance.

2. The corner connector according to claim 1, characterized in that, The connecting end (31) is disposed on the corner shield housing (3) and the wire groove (35) is disposed on the connecting end (31). The connecting cavity (21) is disposed on the wire shield housing (2). The connecting cavity (21) includes two oppositely disposed crimping wings (210). The two crimping wings (210) constitute the crimping structure. The two crimping wings (210) are used to close and deform during crimping and connect at the wire groove (35).

3. The corner connector according to claim 2, characterized in that, The corner shield housing (3) is provided with an inlet for inserting the insulator (8) with the terminal (7) of the corner connector. A shield baffle (5) is provided at the inlet. The shield baffle (5) is provided with a baffle crimping part (51) for extending to the wire groove (35) and into the connection cavity (21). The baffle crimping part (51) is fixed together with the connection end (31) and the connection cavity (21) by crimping. The crimping wing (210) presses the baffle crimping part (51) to press the two core wires.

4. The corner connector according to claim 3, characterized in that, The baffle pressing part (51) is bent toward the inside of the wire groove (35) relative to the main body of the shielding baffle (5).

5. The corner connector according to claim 3 or 4, characterized in that, The corner shield housing (3) has a structure at the loading entrance that is press-fitted and fixed to the main body of the shield baffle (5).

6. The corner connector according to claim 3 or 4, characterized in that, The baffle pressing part (51) extends from the main body of the shielding baffle (5), and the width of the main body of the shielding baffle (5) is greater than the width of the baffle pressing part (51).

7. The corner connector according to claim 2, 3, or 4, characterized in that, The connecting end (31) has a plane facing away from the corner connector plug end, and the wire groove (35) is provided on the plane.

8. The corner connector according to claim 2, 3, or 4, characterized in that, The wire shielding shell (2) is a stamped part, and the corner shielding shell (3) is a die-cast part.

9. The corner connector according to claim 8, characterized in that, The groove depth of the wire groove (35) on the corner shield housing (3) is not less than half the outer diameter of the core wire.

10. The corner connector according to any one of claims 1-4, characterized in that, The groove (35) is provided with a limiting protrusion (351) for extending into the gap between the two core wires.

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