Corner connector
By integrating wire troughs on the shielding shell of the corner connector and using the crimped fixed connection structure of the two-part housing, the problems of high cost and inconvenient assembly in the prior art are solved, and lower cost and more efficient production are achieved.
Patent Information
- Application Number
- CN202411741893.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2044-11-29
AI Technical Summary
The existing corner connectors use separate shielded clamps to keep the cable's two core wires in a relative position, resulting in high cost and inconvenient assembly operation.
A corner connector integrated on the shielding shell is designed, and the wire trough on the shielding shell is used to match the crimped fixed connection structure of the two parts of the shell to maintain the relative position of the two core wires of the cable, reduce the number of parts and reduce production costs.
By reducing the number of parts, the cost of making connectors is reduced, and assembly operations are simplified, improving production efficiency and product reliability.
Smart Images
Figure CN119812824A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of conductive connection devices, and in particular to a corner connector. Background Art
[0002] As the level of intelligent driving of automobiles continues to improve, the number of intelligent network devices in the car is gradually increasing, and the amount of information exchange data between devices is also increasing. Therefore, the application of high-speed connectors that can transmit data at high speed has increased accordingly. High-speed connectors mostly use Ethernet connectors that transmit differential signals.
[0003] The connector is connected to the differential cable. In order to adapt to the vertical outlet form of the cable, an angle connector is generally used. The plug-in direction of the angle connector is generally perpendicular to the outlet direction of the cable. The angle connector usually 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 a terminal. The terminals are arranged in pairs to form a differential pair. The two terminals of the differential pair are crimped with the two wire cores of the differential cable respectively. The outer conductor is a shielding shell used to form a shield around the terminal and the wire core. In order to facilitate the operability of the assembly process of the angle connector and the 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 parts arranged vertically, one of which extends forward along the connector plug-in direction and is used for the terminal and the insulator to be loaded from the rear side, and the other part extends vertically downward and is connected to the crimping shielding shell. The crimping shielding shell is provided with a structure for crimping and fixing the cable. The cable is crimped with the rear end of the terminal. The extension direction of the cable is perpendicular to the direction of the connector plug-in end, which adapts to the form of the angle connector.
[0004] The differential cable includes an insulating sheath, a shielding layer and two core wires, and the core wire includes an insulating sheath and a conductor core in the sheath. When the corner connector is connected to the cable, the insulating sheath of the cable must be stripped, the two core wires of the cable must be separated, the conductor core of the core wire must be crimped with the terminal, and a shielding crimping ring must be installed on the cable to fold the shielding layer of the stripped part of the cable outward and to the outside of the shielding crimping ring. After the terminal, cable, insulator, and shielding crimping ring are installed into the shielding shell, the shielding crimping ring is squeezed by the crimping shielding shell to fix it. The crimping shielding shell and the shielding crimping ring clamp the shielding layer of the cable to achieve conductive connection between the shielding shell and the cable shielding layer. In order to ensure reliable connection between the shielding layer and the shielding shell of the cable, the outward-facing part of the shielding layer of the cable will be relatively long. In this way, when making the cable, a longer part of the outer skin needs to be peeled off. Correspondingly, the exposed part of the core wire is relatively long. In order to maintain the relative positions of the exposed parts of the two core wires, a shielding wire clamp is usually used at present. The shielding wire clamp is fixed to the two core wires through the shielding wire clamp, and the shielding wire clamp is installed in the shielding shell along with the cable. The shielding wire clamp is crimped and fixed by the corresponding part of the shielding shell of the shielding shell. The shielding shell fixes the shielding wire clamp. The shielding wire clamp maintains the spacing between the two core wires, thereby reducing the influence of the change in the spacing between the two core wires on the channel impedance.
[0005] The structure of the above-mentioned corner connector for maintaining the relative positions of the two exposed core wires of the cable requires a separate shielding wire clamp to be made, which is costly. Moreover, when assembling the connector, it is necessary to perform operations of fixing the core wire with the shielding wire clamp and crimping the shielding wire clamp with the shielding shell, which is not conducive to operational convenience. Summary of the invention
[0006] The object of the present invention is to provide an angle connector to solve the problem that the existing angle connector uses a separate shielding wire clamp to maintain the relative positions of the exposed parts of the two core wires of the cable, which has a high structural cost.
[0007] The technical solution of the corner connector of the present invention is: A corner connector comprises a shielding shell and two terminals arranged in pairs, the shielding shell comprises a corner shielding shell and a wire crimping shielding shell, the corner shielding shell has a part for shielding the connection between the terminal and the core wire of a differential cable, the wire crimping shielding shell has a part for crimping the shielding layer of the differential cable, one of the corner shielding shell and the wire crimping shielding shell is provided with a connecting end, and the other is provided with a connecting cavity for the connecting end to be loaded, the connecting cavity is provided with a crimping structure for crimping and fixing the connecting end, and the inner wall of the connecting cavity and / or the outer wall of the connecting end are provided with a wire groove for adapting and installing the two core wires of the differential cable so as to fix the two core wires when the connecting cavity and the connecting end are crimped.
[0008] Beneficial effect: The present invention omits some elements on the basis of the corner connector in the prior art, so that the corner shielding shell and the wire-crimping shielding shell are crimped and fixed through the connection ends and the connecting cavity parts of the two. The two-part shielding shells are connected by a crimping structure, and a wire groove is set at the crimping structure. After the two core wires of the differential cable are installed in the wire groove, the two core wires are fixed by crimping the connection end and the connecting cavity part. That is, the wire groove integrated on the shielding shell is used to cooperate with the crimping and fixing connection structure of the two parts of the shell to maintain the relative position of the exposed parts of the two core wires of the cable. There are fewer parts, which is beneficial to reducing the manufacturing cost of the connector.
[0009] Furthermore, the connecting end is arranged on the corner shielding shell and the wire groove is arranged on the connecting end, the connecting cavity is arranged on the wire crimping shielding shell, the connecting cavity includes two crimping wings arranged opposite to each other, the two crimping wings constitute the crimping structure, and the two crimping wings are used to close and deform during crimping and dock at the wire groove.
[0010] Furthermore, the corner shielding shell is provided with an loading port for installing the insulator of the corner connector equipped with the terminal, and a shielding baffle is provided at the loading port, and the shielding baffle is provided with a baffle crimping portion for extending to the wire groove and extending into the connecting cavity portion, the baffle crimping portion is fixed together with the connecting end portion and the connecting cavity portion by crimping, and the crimping wing presses the baffle crimping portion so as to make the baffle crimping portion press the two core wires.
[0011] Furthermore, the baffle crimping portion is bent toward the inside of the wire slot relative to the main body of the shielding baffle.
[0012] Furthermore, a structure which is crimped and fixed to the main body of the shielding baffle is provided at the loading port of the corner shielding shell.
[0013] Further, the baffle plate crimping portion is cantilevered based on a main body portion of the shielding baffle plate, and a width of the main body portion of the shielding baffle plate is greater than a width of the baffle plate crimping portion.
[0014] Furthermore, the connecting end portion has a plane facing away from the plug-in end of the corner connector, and the wire groove is arranged on the plane.
[0015] Furthermore, the wire-pressing shielding shell is a stamping part, and the corner shielding shell is a die-casting part.
[0016] Furthermore, the groove depth of the wire groove on the corner shielding shell meets the requirement of being no less than half of the outer diameter of the core wire.
[0017] Furthermore, a limiting protrusion is provided in the wire groove and is used to extend into the gap between the two core wires. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1is a schematic structural diagram of an embodiment of a corner connector of the present invention; Figure 2 for Figure 1 Exploded view of the corner connector in ; Figure 3 for Figure 1 A schematic diagram of the structure when the wire pressing shielding shell and the corner shielding shell are separated; Figure 4 for Figure 1 A schematic diagram of the installation structure of the wire pressing shielding shell, the corner shielding shell and the contact shielding shell; Figure 5 for Figure 4 A cross-sectional view of each shielding shell in FIG. Figure 6 for Figure 1 A three-dimensional schematic diagram of the bent high-speed data connector from a rear side perspective when the insulating housing and the shielding baffle are removed and the insulating cover portion is not bent; Figure 7 for Figure 1 A three-dimensional schematic diagram of the bent high-speed data connector from a rear side perspective after the insulating housing and the shielding baffle are removed and the insulating cover portion is bent; Figure 8 for Figure 1 A three-dimensional schematic diagram of a curved high-speed data connector from a rear side perspective with the insulating housing removed and the crimping wings not crimped; Fig. 9 for Figure 4 A rear view of each shielding shell in FIG. Fig.10 for Figure 2 Schematic diagram of the terminal when it is not bent; Fig.11 for Figure 2 Schematic diagram of the terminal after bending; Fig.12 for Figure 1 A cross-sectional view of the corner connector in which the insulating housing and the shielding baffle are removed and the insulating cover portion is not bent; Fig.13 for Figure 1 A rear view of the corner connector in which the insulating housing and the shielding baffle are removed and the insulating cover portion is not bent; Fig.14 for Figure 1 A cross-sectional view of the corner connector with the insulating housing and shielding baffle removed and the insulating cover plate portion bent; Fig.15 for Figure 1 A rear view of the corner connector with the insulating housing and shielding baffle removed and the insulating cover plate portion bent; Fig.16 for Figure 1A cross-sectional view of the corner connector with the insulating housing removed and the crimping wings not crimped; Fig.17 for Figure 1 A rear view of the corner connector in FIG. 1 with the insulating housing removed and the crimping wings not crimped; Fig.18 for Figure 1 A cross-sectional view of the corner connector with the insulating housing removed and the crimping wings crimped; Fig.19 for Figure 1 A rear view of the corner connector with the insulation housing removed and the crimping wings crimped; Fig. 20 for Fig.13 Schematic diagram of the terminal and cable connection in FIG; Fig.21 for Figure 2 Rear view of the insulator in; Fig. 22 for Figure 2 A cross-sectional view of an insulator in FIG. Fig.23 for Figure 1 A front view of a corner connector in FIG. Fig.24 for Figure 1 Cross-sectional view of a corner connector in .
[0019] In the figure: 1. Insulating shell; 11. Snap-on elastic arm; 12. Stop surface; 2. Wire crimping shielding shell; 21. Connecting cavity; 210. Crimping wing; 211. First groove; 212. Second groove; 22. Shielding crimping part; 23. Outer skin crimping part; 3. Corner shielding shell; 31. Connecting end; 32. Transfer end; 311. First convex part; 312. Second convex part; 33. Clamping boss; 34. Riveting part; 35. Wire groove; 351. Limiting protrusion; 4. Contact the shielding shell; 5. Shielding baffle; 51. Baffle crimping portion; 6. Shielding crimping ring; 7, terminal; 71, wiring section; 72, plug-in section; 8. insulator; 81. insulating cover plate; 82. guide boss; 83. terminal mounting hole; 84. insertion section; 85. corner section; 86. receiving groove; 87. inclined side wall; 9. cable; 91. conductor core; 92. insulating sheath. DETAILED DESCRIPTION
[0020] The corner connector of the present invention utilizes the wire groove integrated on the shielding shell in conjunction with the crimping fixed connection structure of the two shell parts to maintain the relative positions of the exposed parts of the two core wires of the cable. It has fewer parts, which is beneficial to reducing the manufacturing cost of the connector and also facilitates the connector assembly operation.
[0021] Embodiments of the corner connector of the present invention: The corner connector includes a shielding shell and two terminals arranged in pairs, the shielding shell includes a corner shielding shell and a crimping shielding shell, the corner shielding shell has a part for shielding the core wire connection between the terminal and the differential cable, the crimping shielding shell has a part for crimping the shielding layer of the differential cable, the corner shielding shell is provided with a connecting end, the crimping shielding shell is provided with a connecting cavity for the connecting end to be loaded, the connecting cavity is provided with 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 are provided with a wire groove for adapting and installing the two core wires of the differential cable so as to fix the two core wires of the differential cable when the connecting cavity and the connecting end are crimped, the wire groove on the shielding shell is used to cooperate with the crimping structure of the two shells to maintain the relative position of the exposed parts of the two core wires of the cable, thereby reducing the influence of the change in the spacing between the two core wires on the channel impedance.
[0022] Specifically, Figure 1 , Figure 2 As shown, the corner connector includes an insulating shell 1, a shielding structure, an insulator 8, and a terminal 7. The shielding structure includes a shielding shell, a shielding baffle 5, and a shielding crimping ring 6. The shielding shell includes a wire crimping shielding shell 2, a corner shielding shell 3, and a contact shielding shell 4 that are separately arranged. Two terminals 7 are provided and form a differential pair to transmit differential signals. The terminal 7 is installed in the insulator 8, and the terminal 7 and the insulator 8 are integrally installed in the shielding shell, and the shielding shell is installed in the insulating shell 1. The insulating shell 1 has a forward socket for the adapter connector to be inserted and form contact with the terminal 7 and the shielding shell to achieve signal conduction and shielding conduction.
[0023] The corner connector is a right-angle connector. The plug-in direction of the connector is perpendicular to the line output direction. The head end and the 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 is downward. The head end is used for plugging with the adapter connector, and the tail end is used for wiring.
[0024] Combination Figure 3 , Figure 4 , Figure 5The wire crimping shielding shell 2 is provided with a connecting cavity 21, and the corner shielding shell 3 is provided with a connecting end 31. The connecting end 31 is inserted into the connecting cavity 21 and fixed by crimping. The connecting cavity 21 is provided with a crimping structure for crimping and fixing the connecting end 31, so that the wire crimping shielding shell 2 and the corner shielding shell 3 are fixedly connected by crimping. The corner shielding shell 3 is placed at the corner of the connector. The corner shielding shell 3 includes two parts perpendicular to each other, one part extends up and down, and the other part extends forward and backward, wherein the front end of the front and rear extending parts is provided with a transfer end 32, and the transfer end 32 is used to connect to the contact shielding shell 4, and the connecting end 31 is arranged at the lower end of the upper and lower extending parts. The direction of the transfer end 32 is perpendicular to the direction of the connecting end 31, and the transfer end 32 faces forward and the connecting end 31 faces downward, so as to realize the vertical change of the head end and the tail end of the corner connector.
[0025] The contact shielding shell 4 is inserted into the corner shielding shell 3 from the transition end 32, and the contact shielding shell 4 extends in the front-to-back direction. The contact shielding shell 4 has a portion that protrudes forward of the corner shielding shell 3 and is provided with a shielding connection structure for contacting the shielding component of the adapter connector. The corner shielding shell 3 is provided with a riveting portion 34. After the contact shielding shell 4 is inserted into the corner shielding shell 3, the contact shielding shell 4 is fixed to the corner shielding shell 3 by riveting at the riveting portion 34. The riveting here adopts a rivet-free riveting process, that is, stamping is performed at the riveting portion 34, so that the corresponding portions of the corner shielding shell 3 and the contact shielding shell 4 are concave and deformed to achieve a fixed connection.
[0026] Combination Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 The terminal 7 includes a plug-in section 72 and a wiring section 71 which are arranged at an angle. The plug-in section 72 extends in the front-to-back direction and constitutes the main part of the terminal 7. The wiring section 71 is arranged at the rear end of the plug-in section 72 and bent downward. The end of the plug-in section 72 away from the wiring section 71 is provided with a socket structure for plugging with the adapter connector. The wiring section 71 is used to crimp the core wire of the cable 9. After the connector is assembled, the plug-in section 72 is arranged at an angle of 90° to the wiring section 71.
[0027] The cable 9 is a differential cable for transmitting differential signals. The cable 9 includes an outer sheath, a shielding layer, and a core wire. The outer sheath is an insulating rubber sheath. There are two core wires, each of which includes an insulating sheath 92 and a conductor core 91. The conductor core 91 constitutes a 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 portion of the conductor core 91 that is not crimped by the wiring segment 71 is wrapped by the insulating sheath 92. The shielding layer is arranged between the two core wires and the outer sheath. When making the wire, the outer sheath of the cable 9 is peeled off a section, and the shielding crimping ring 6 is crimped and fixed on the outer sheath of the cable 9. The shielding layer of the cable 9 is turned outward and turned to the periphery of the shielding crimping ring 6. The shielding crimping ring 6 is installed in the crimping shielding shell 2, and the shielding layer is clamped by the crimping shielding shell 2, while the two core wires of the cable 9 extend into the corner shielding shell 3.
[0028] The main part of the terminal 7 is arranged in the front-to-back direction, the cable 9 is arranged in the up-down direction, and the upper end of the cable 9 is crimped and fixed with the rear end of the terminal 7. The rear side of the corner shielding shell 3 away from the transfer end 32 is provided with a loading port for the terminal 7 and the insulator 8 to be loaded into the corner shielding shell 3, and the loading port is open to the rear. The insulator 8 is loaded into the corner shielding shell 3 from the back to the front through the loading port and extends into the contact shielding shell 4, and the terminal 7 is loaded into the insulator 8 from the back to the front, and the part where the rear end of the terminal 7 is connected to the cable 9 is at the rear of the corner shielding shell 3. The insulator 8 includes an insertion section 84 and a corner section 85 arranged at an angle, and the insertion section 84 and the corner section 85 are arranged vertically to form a 90° angle, the insertion section 84 extends in the front-to-back direction and is inserted into the front of the corner shielding shell 3 and the contact shielding shell 4, the corner section 85 is arranged at the rear end of the insertion section 84 and extends downward based on the insertion section 84, and the corner section 85 is loaded into the rear of the corner shielding shell 3. The plug-in section 72 of the terminal 7 is inserted into the insertion section 84 of the insulator 8, and the wiring section 71 of the terminal 7 is installed in the corner section 85 of the insulator 8. In other embodiments, as required, the angle between the insertion section and the corner section of the insulator can be 120° or 150°, etc., to adapt to corner connectors of different angles. Accordingly, the angle between the plug-in section and the wiring section of the terminal is adapted to change, and the relative relationship between the orientation of the transfer end and the orientation of the connection end of the corner shielding shell is adapted to change.
[0029] When assembling the connector, first assemble the wire crimping shielding shell 2, the corner shielding shell 3, and the contact shielding shell 4 to form an assembly, and then install the insulator 8; at the same time, make another wire, the conductor core 91 of the cable 9 is crimped with the terminal 7, the rear end of the terminal 7 is bent and installed into the insulator 8, the insulator 8 is installed in the shielding shell, the rear cover of the insulator 8 is bent, the shielding baffle 5 is installed, and then the wire crimping shielding shell 2 is crimped, and finally the whole is installed in the insulating shell 1.
[0030] The corner shielding shell 3 has a portion for shielding the connection between the terminal 7 and the conductor core 91 of the core wire of the differential cable, and the crimping shielding shell 2 has a portion for crimping the shielding layer of the differential cable. The connection end 31 of the corner shielding shell 3 is provided with a wire groove 35 for adapting and installing the two core wires of the differential cable to fix the two core wires of the cable 9 when the connection cavity 21 and the connection end 31 are crimped. The two separate shielding shells are connected by a crimping structure, and the wire groove 35 is set at the crimping structure. The wire groove 35 is connected with the cavity at the rear of the corner shielding shell 3 for the insulator 8 to be installed. The wire groove 35 is for the exposed part of the two core wires of the cable 9 to be installed and the core wires are extended from the connection cavity 21 to the rear of the corner shielding shell 3. A part of the two core wires of the cable 9 between the outer skin and the terminal 7 is installed in the wire groove 35, and the two core wires of the cable 9 are bent and separated after passing through the wire groove 35, and the spacing becomes larger to adapt to the spacing of the plug-in sections 72 of the two terminals 7. After the two core wires of the cable 9 are installed in the wire groove 35, the two core wires are fixed by crimping the connecting end 31 and the connecting cavity 21, so that the wire groove 35 integrated on the shielding shell is used to cooperate with the crimping fixed connection structure of the two parts of the shell to maintain the relative position of the exposed parts of the two core wires of the cable 9. There are fewer parts, which is beneficial to reducing the manufacturing cost of the connector and facilitating assembly operations.
[0031] The connection end 31 is arranged on the corner shielding shell 3, the wire groove 35 is arranged on the connection end 31, and the connection cavity 21 is arranged on the wire crimping shielding shell 2. The connection cavity 21 includes two crimping wings 210 arranged opposite to each other on the left and right sides 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 is closed during crimping. The two crimping wings 210 face backward when not crimped. The wire crimping shielding shell 2 is relative to the corner shielding shell 3 from front to back so that the connection cavity 21 is sleeved on the connection end 31. The two crimping wings 210 are used to be closed and deformed during crimping and pressed against the rear side of the connection end 31. After the two crimping wings 210 are closed and deformed, they are butted at the wire groove 35 to provide a fixing force to 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 also face forward when not crimped, so that the wire-crimping shielding shell can be placed on the connecting end from back to front relative to the corner shielding shell. At this time, the connecting part of the connecting cavity connecting the two crimping wings can be used to face the wire groove to provide a fixing force on the core wire in the wire groove, and 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 may not be provided at the connecting end, but only the wire groove may be provided 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. At this time, the shielding baffle can be integrally provided with the wire-crimping shielding shell. In other embodiments, the connecting end portion can also be set on the wire crimping shielding shell, and the connecting cavity portion can be set on the corner shielding shell. When not crimped, the opening formed by the two crimping wings of the connecting cavity portion of the corner shielding shell faces backward, and the opening of the lower side of the connecting end portion of the wire crimping shielding shell for crimping the cable faces forward. The connecting end portion of the wire crimping shielding shell is set as a plate-like structure and is integrally arranged with the shielding baffle. The inner wall of the connecting cavity portion of the corner shielding shell forms a wire groove. After the two core wires of the differential cable are installed in the wire groove, the plate-like connecting end portion of the wire crimping shielding shell is installed in the connecting cavity portion, and the plate-like connecting end portion is pressed tightly against the core wire by closing the two crimping wings.
[0032] Combination Fig.14 , Fig.15 , Fig.16 , Fig.17 , Fig.18 , Fig.19The corner shielding shell 3 is provided with a shielding baffle 5 at the loading port for the terminal 7 and the insulator 8 to be loaded. The shielding baffle 5 is provided with a baffle crimping portion 51 for extending to the wire slot 35 and extending into the connecting cavity 21. The baffle crimping portion 51 is fixed together with the connecting end portion 31 and the connecting cavity 21 by crimping. The crimping wing 210 presses the baffle crimping portion 51 to make the baffle crimping portion 51 press the two core wires. The baffle crimping portion 51 of the shielding baffle 5 is used to be placed between the core wire and the crimping wing 210, which is conducive to reliable pressing and reliable fixing of the shielding baffle 5. In other embodiments, the shielding baffle may not be provided with a baffle crimping portion, and the crimping wing is directly pressed on the core wire.
[0033] The shielding baffle 5 is covered at the rearward loading entrance of the corner shielding shell 3 to ensure the shielding effect of the connection between the cable 9 and the terminal 7 and to play a role in the reliable fixing of the core wire. The shielding baffle 5 includes a main body and a baffle crimping portion 51 that is cantilevered downward based on the main body. The crimping wing 210 of the connecting cavity 21 is deformed and pressed against the baffle crimping portion 51. The baffle crimping portion 51 of the shielding baffle 5 is protruding toward the connecting end 31 relative to the main body, that is, it is staggered up and down relative to the main body. The baffle crimping portion 51 is bent toward the wire groove 35 relative to the main body of the shielding baffle 5. After the crimping wing 210 of the connecting cavity 21 is deformed, it is pressed against the rear side of the baffle crimping portion 51, which can prevent the crimping wing 210 from protruding too high backward after crimping, thereby saving space. In other embodiments, the baffle crimping portion of the shielding baffle can also be made flush with the main body.
[0034] The loading port of the corner shielding shell 3 is provided with a structure for crimping and fixing with the main body of the shielding baffle 5, which is conducive to the shielding conduction between the shielding baffle 5 and the corner shielding shell 3, and the fixing is reliable. In other embodiments, the shielding baffle may not be crimped with the loading port of the corner shielding shell, but only fixed by the pressing of the crimping wings.
[0035] The width of the connecting end 31 in the left-right direction is smaller than the width of the installation opening of the corner shielding shell 3, the main body of the shielding baffle 5 is adapted to be installed in the rearward installation opening of the corner shielding shell 3, and the baffle crimping portion 51 of the shielding baffle 5 is adapted to be installed in the wire groove 35. The width of the main body of the shielding baffle 5 is greater than the width of the baffle crimping portion 51, which saves the space occupied by the shielding baffle 5 and facilitates the installation of the crimping structure. In other embodiments, if space permits, the width of the main body of the shielding baffle can also be equal to the width of the baffle crimping portion.
[0036] The connecting end 31 has a forward curved surface to facilitate the adaptation of the curved connecting portion of the connecting cavity 21. The connecting end 31 has a rearward plane, which faces away from the corner connector plug-in end. The connector plug-in end faces forward, and the wire groove 35 is arranged on the plane with the notch facing backward. The wire groove 35 is connected from top to bottom, and the wire groove 35 is connected to the cavity of the corner connector with the loading port. The wire groove 35 is arranged on a plane to facilitate forming. In other embodiments, the connecting end can also have a rearward curved surface, and the wire groove is arranged on the curved surface to ensure that the core wire is compressed.
[0037] The depth of the wire groove 35 is greater than the outer diameter of the core wire of the cable 9, and the two core wires can be installed side by side in the wire groove 35. At the same time, when being pressed, the baffle crimping portion 51 of the shielding baffle 5 can extend into the wire groove 35, which is conducive to reliable positioning and stable crimping. In other embodiments, the depth of the wire groove can also be slightly greater than half of the outer diameter of the core wire to play a good positioning role for the two core wires.
[0038] A limiting protrusion 351 is provided in the wire groove 35 for extending into the gap between the two core wires of the cable 9. The limiting protrusion 351 is adapted to the gap between the two core wires of the cable 9, which is conducive to reliable support and makes the insulating sheath 92 of the core wire bear force evenly. In other embodiments, the limiting protrusion may not be provided.
[0039] The wire-pressing shielding shell 2 and the contact shielding shell 4 are both stamping parts, and the corner shielding shell 3 is a die-casting part. The die-casting part can reduce the difficulty of forming the shielding shell and reduce the production cost. In other embodiments, the wire-pressing shielding shell, the corner shielding shell, and the contact shielding shell can also be stamping parts.
[0040] The wire crimping shielding shell 2 includes a shell crimping part, a shielding crimping part 22, and an outer skin crimping part 23 which are arranged in sequence from top to bottom. The shell crimping part, i.e., the connecting cavity part 21, is used to crimp the corner shielding shell 3, the shielding crimping part 22 is used to crimp the shielding layer of the cable 9, and the outer skin crimping part 23 is used to be crimped and fixed on the outer skin of the cable 9. The connecting cavity 21 of the crimping shielding shell 2 extends in the up and down direction. When the crimping wing 210 of the connecting cavity 21 is not crimped, the connecting end 31, the cable 9, and the baffle crimping portion 51 can enter from the rear opening of the connecting cavity 21. After the crimping wing 210 of the connecting cavity 21 is crimped, the portion of the crimping wing 210 located on the rear side of the connecting end 31 is bent and deformed, and the connecting end 31 and the baffle crimping portion 51 are tightly fixed. The crimping and fixing portion of the crimping wing 210 is on the side of the corner shielding shell 3 where an installation port is provided. The side opening of the wire crimping shielding shell 2 and the installation port of the corner shielding shell 3 are both set to the rear, which is convenient for installation operations.
[0041] The conductor core 91 of the cable 9 is crimped with the terminal 7, and then the terminal 7 and the cable 9 are installed on the shielding shell together. The terminal 7 is installed in the terminal installation cavity of the insertion section 84 of the insulator 8, and the two core wires of the cable 9 are respectively stuck in the wire groove 35 of the connection end 31. The shielding crimping ring 6 is installed in the shielding crimping part 22 of the crimping shielding shell 2, and the shielding layer and the shielding crimping ring 6 of the cable 9 are crimped and fixed by the shielding crimping part 22. The baffle crimping part 51 of the shielding baffle 5 is blocked at the wire groove 35 of the connection end 31, and the baffle crimping part 51 of the shielding baffle 5 is pressed against the core wire of the cable 9 to keep the core wire in a fixed position through the crimping fixation of the connection cavity 21, which can play a role in adjusting impedance.
[0042] The two crimping wings 210 are respectively provided with a first groove 211, and the connecting end portion 31 is provided with a first convex portion 311 adapted to the first groove 211, and the two first grooves 211 and the two first convex portions 311 are used to form a limiting fit. The connecting portion of the connecting cavity portion 21 is provided with a second groove 212, and correspondingly, the connecting end portion 31 is provided with a second convex portion 312 adapted to the second groove 212. When the connecting end 31 is not crimped, the ends of the two crimping wings 210 away from the connecting portion 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 larger side opening can be formed between the ends of the two crimping wings 210, and the connecting end 31 can enter the connecting cavity 21 from the side opening, and the first protrusion 311 is snapped into the first groove 211, and the second protrusion 312 is snapped into the second groove 212. After being installed in place, the two crimping wings 210 can be deformed by closing and deforming, and the ends of the two crimping wings 210 are close to each other, and 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 cooperates with the limiting protrusion and the limiting cavity to realize axial and radial anti-detachment connection. After the first protrusion 311 is snapped into the first groove 211, it can realize the blocking and limiting in the front and rear directions. After the second protrusion 312 is snapped into the second groove 212, it can realize the blocking and limiting in the up and down directions.
[0043] The first convex portion 311 is provided with a guide surface for guiding the crimping wing 210 to expand and deform outward when the connecting end portion 31 extends into the connecting cavity portion 21 from the side opening. The guide surface is an inclined surface. Before the first convex portion 311 does not enter the first groove 211, the crimping wing 210 is guided to expand and deform outward to facilitate the loading operation. The protruding direction of the second convex portion 312 is opposite to the direction of the side opening when the connecting end portion 31 is loaded into the connecting cavity portion 21 from the side opening. The second convex portion 312 and the second groove 212 are directly opposite in the direction in which the connecting end portion 31 is loaded into the connecting cavity portion 21, so that the second convex portion 312 directly enters the second groove 212 during installation, which is convenient for installation operation. The first groove 211 and the second groove 212 are both through grooves that penetrate in the wall thickness direction of the connecting cavity portion 21. The first groove 211 and the second groove 212 are both rectangular grooves. The corresponding convex portion and the groove shape are adapted so that the limiting cavity has a side wall for cooperating with the limiting convex portion to stop rotation, which is conducive to ensuring the installation position of the crimping shielding shell 2 and the corner shielding shell 3. After the first protrusion 311 is inserted into the first groove 211, the rearward side surface of the first protrusion 311 and the front side wall of the first groove 211 form a front and rear stop fit perpendicular to the extension direction of the connecting cavity 21, and after the second protrusion 312 is inserted into the second groove 212, the upward side surface of the second protrusion 312 and the downward side wall of the second groove 212 form an upper and lower stop fit along the extension direction of the connecting cavity 21, wherein the corresponding protrusions and grooves form front and rear stop fits, and there may be a small gap in the upper and lower directions; at the upper and lower stop fits, there may be a small gap in the left and right directions.
[0044] Combination Fig. 20 , Fig.21 , Fig. 22 The insertion section 84 of the insulator 8 is provided with an installation cavity for inserting the plug section 72 of the terminal 7, and the installation cavity is the terminal installation hole 83, which is through-through from front to back. The rear side of the corner section 85 facing away from the connector plug end is provided with a receiving groove 86 for the wiring section 71 to be installed. Two receiving grooves 86 are provided corresponding to the terminal 7, and two are provided on the left and right of the terminal 7. Two receiving grooves 86 are provided on the left and right. The receiving grooves 86 are through-through from top to bottom and the notch faces backward. The receiving grooves 86 correspond to the terminal installation hole 83 one by one. The upper end of the receiving groove 86 is through-through corresponding to the terminal installation hole 83, so that after the wiring section 71 of the terminal 7 is crimped and bent with the conductor core 91 of the cable 9, it is correspondingly installed in the insulator 8, and the wiring section 71 and the part of the conductor core 91 wrapped by the wiring section 71 are installed in 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.
[0045] Each receiving groove 86 has two side groove walls opposite to each other, wherein the adjacent groove walls of the two receiving grooves 86 are inclined to form an inclined side wall 87, the two receiving grooves 86 are symmetrically arranged, and the inclined side walls 87 of the two receiving grooves 86 are arranged in a V shape, the inclined side walls 87 of the two receiving grooves 86 are opposite to each other and the distance gradually decreases in the direction away from the terminal mounting hole 83, that is, the distance between the adjacent groove walls of the two receiving grooves 86 gradually decreases from top to bottom, the wiring segment 71 of the terminal 7 is inclinedly arranged in the receiving groove 86 and the wiring segment 71 of the two terminals 7 is gradually reduced in the direction away from the plug-in segment 72, and the spacing between the wiring segment 71 of the two terminals 7 is gradually reduced from top to bottom, accordingly, so that the guide of the cable 9 The part of the body core 91 crimped with the wiring section 71 is tilted. The state of the conductor core 91 in the figure is to illustrate its position, not the actual use state. After the actual crimping, the part of the conductor core 91 in the insulator 8 is tilted. The distance between the two conductor cores 91 of the cable 9 and the terminal 7 is gradually increased from bottom to top to adapt to the change of the distance between the two wire cores of the lower cable 9 to the distance between the plug-in section 72 of the two terminals 7 above. The distance between the two cores of the cable 9 at the line slot 35 is smaller than the distance at the receiving slot 86. The two cores of the cable 9 at the line slot 35 are attached to the part in the outer skin. The shielding shell is a necking structure at the line slot 35 to adapt to the shielding at this place and improve the impedance. The inclined wiring section 71 of the terminal 7 cooperates with the wire core in the receiving slot 86 to transition the distance between the two wire cores to the distance between the plug-in section 72 of the two terminals 7, which is conducive to increasing the length of the wire core to achieve the transition part of the spacing, avoiding the wire core from a large bending angle to produce a sudden change in spacing, adjusting the line distance, adjusting the angle of the two wire cores, and improving the impedance and ensuring the transmission performance.
[0046] The portion of the insulator 8 located between the two receiving grooves 86 forms a guiding boss 82, and the adjacent groove walls of the two receiving grooves 86 constitute the two side surfaces in the width direction of the guiding boss 82, which are also the two side inclined side walls 87 that are symmetrical on the left and right. The width of the guiding boss 82 gradually decreases in the direction away from the terminal mounting hole 83, that is, the width of the guiding boss 82 gradually decreases from top to bottom, and the width direction is the left and right direction, so that the spacing between the two conductor cores 91 of the cable 9 gradually increases from bottom to top. The lower end of the guiding boss 82 is a pointed end, and the pointed end of the guiding boss 82 extends between the insulating sheaths 92 outside the two conductor cores 91. The insulating sheath 92 has a portion extending into the receiving groove 86, and the pointed end of the guiding boss 82 is used to limit the core wire of the cable 9 to facilitate guiding the core wire of the cable 9 to bend and deform. The groove walls of the two receiving grooves 86 on the corner section 85 are arranged in parallel so that the groove width of the receiving groove 86 gradually widens from top to bottom, which is convenient for guiding the cable 9 and the wiring section 71 of the terminal 7 to be installed in the receiving groove 86.
[0047] An end of the insulator 8 facing away from the connector plug-in end is provided with an insulating cover plate portion 81 for covering the two receiving grooves 86. The portion of the insulator 8 located between the two receiving grooves 86 is lower than the portion located on the opposite sides of the two receiving grooves 86 in the groove depth direction. The guide boss 82 is relatively low in height, and can avoid the insulating cover plate portion 81 so as to be embedded in the insulator 8 when the insulating cover plate portion 81 covers the two receiving grooves 86. The insulating cover plate portion 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 part of the insulator 8. The root of the insulating cover plate portion 81 connected to the main part of the insulator 8 is provided with a weak structure so as to cover the two receiving grooves 86 by bending. The thickness of the weak structure is small and convenient for bending. After the terminal 7 and the cable 9 are installed in the insulator 8, the two receiving grooves 86 are covered by bending the insulating cover plate portion 81, which can play a role in adjusting the impedance. In order to prevent the insulating cover part 81 from rebounding after bending, the shielding baffle 5 can limit it. After the shielding baffle 5 is fixed to the shielding shell, it is located on the rear side of the insulating cover part 81 and close to the insulating cover part 81, so that the insulating cover part 81 can be kept in a state of covering the two receiving grooves 86.
[0048] Before the terminal 7 and the cable 9 are installed, the insulating cover plate portion 81 is suspended straightly backward. After the terminal 7 and the cable 9 are installed, the insulating cover plate portion 81 can be bent downward to become a downwardly suspended state, which can cover the connection between the terminal 7 and the conductor core 91 of the cable 9, and play a role in adjusting the impedance. The insulating cover plate portion 81 is integrally formed with the main body of the insulator 8, which can reduce costs. After the shielding baffle 5 is installed, the shielding baffle 5 can limit the insulating cover plate portion 81 to maintain the downwardly suspended state of the insulating cover plate portion 81, and keep the cover plate in a state of covering the two receiving grooves 86.
[0049] Combination Fig.23 , Fig.24 The left and right side walls of the insulating housing 1 are provided with a snap-on elastic arm 11, which is cantilevered forward. The corner shielding shell 3 is provided with a snap-on boss 33. When the corner shielding shell 3 is inserted into the insulating housing 1 from the back to the front, the snap-on elastic arm 11 can be snapped on the rear side of the snap-on boss 33. On the front side of the snap-on boss 33, the insulating housing 1 is also provided with a rearward stop surface 12. The snap-on elastic arm 11 forms a rearward stop for the snap-on boss 33, and the stop surface 12 forms a forward stop for the snap-on boss 33, so as to ensure reliable assembly.
[0050] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments without creative work, or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A corner connector, characterized in that: The invention comprises a shielding shell and two terminals (7) arranged in pairs, wherein the shielding shell comprises a corner shielding shell (3) and a crimping shielding shell (2), wherein the corner shielding shell has a portion for shielding the connection between the terminal and the core wire of the differential cable, and the crimping shielding shell has a portion for crimping the shielding layer of the differential cable, wherein one of the corner shielding shell and the crimping shielding shell is provided with a connecting end (31), and the other is provided with a connecting cavity (21) for receiving the connecting end, wherein the connecting cavity is provided with a crimping structure for crimping and fixing the connecting end, and wherein the inner wall of the connecting cavity and / or the outer wall of the connecting end is provided with a wire groove (35) for adapting and installing two core wires of the differential cable so as to fix the two core wires when the connecting cavity and the connecting end are crimped.
2. The corner connector according to claim 1, characterized in that: The connection end (31) is arranged on the corner shielding shell (3) and the wire groove (35) is arranged on the connection end (31); the connection cavity (21) is arranged on the wire crimping shielding shell (2); the connection cavity (21) comprises two crimping wings (210) arranged opposite to each other; the two crimping wings (210) constitute the crimping structure; the two crimping wings (210) are used to close and deform during crimping and butt at the wire groove (35).
3. The corner connector according to claim 2, characterized in that: The corner shielding shell (3) is provided with an insertion port for inserting an insulator (8) of the corner connector equipped with the terminal (7), and a shielding baffle (5) is provided at the insertion port. The shielding baffle (5) is provided with a baffle crimping portion (51) for extending to the wire slot (35) and extending into the connecting cavity (21). The baffle crimping portion (51) is fixed together with the connecting end portion (31) and the connecting cavity (21) by crimping, and the crimping wing (210) presses the baffle crimping portion (51) so as to enable the baffle crimping portion (51) to press the two core wires.
4. The corner connector according to claim 3, characterized in that: The baffle crimping portion (51) is bent relative to the main body of the shielding baffle (5) toward the inside of the wire slot (35).
5. The corner connector according to claim 3 or 4, characterized in that: A structure for crimping and fixing with the main body of the shielding baffle (5) is provided at the loading port of the corner shielding shell (3).
6. The corner connector according to claim 3 or 4, characterized in that: The baffle plate crimping portion (51) is cantilevered based on the main portion of the shielding baffle plate (5), and the width of the main portion of the shielding baffle plate (5) is greater than the width of the baffle plate crimping portion (51).
7. The corner connector according to claim 2, 3 or 4, characterized in that: The connection end (31) has a plane facing away from the plug-in end of the corner connector, and the wire groove (35) is arranged on the plane.
8. The corner connector according to claim 2, 3 or 4, characterized in that: The wire pressing shielding shell (2) is a stamping part, and the corner shielding shell (3) is a die-casting part.
9. The corner connector according to claim 8, characterized in that: The groove depth of the wire groove (35) on the corner shielding shell (3) is not less than half of the outer diameter of the core wire.
10. The corner connector according to any one of claims 1 to 4, characterized in that: A limiting protrusion (351) is provided in the wire groove (35) and is used to extend into the gap between the two core wires.
Citation Information
Patent Citations
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