High-speed connector

Abstract

The invention relates to the technical field of conductive connecting devices, in particular to a high-speed connector. The high-speed connector comprises a connector shell and a terminal module, the connector shell is provided with a module installation cavity for the terminal module to be installed in, and the terminal module comprises an insulator, a terminal installed in the insulator and a shielding shell arranged outside the insulator. The connector shell is provided with a terminal locking structure which is pressed by external force to extend into the module installation cavity to stop the terminal module after the terminal module is installed in the module installation cavity, one of the terminal module and the inner wall of the module installation cavity is provided with a limiting elastic claw, and the other one of the terminal module and the inner wall of the module installation cavity is provided with a limiting blocking wall. The limiting elastic claw is stressed to deform in the process that the terminal module is installed in the module installation cavity, resets when the terminal module is installed in place and is matched with the limiting blocking wall in a blocking mode, so that the terminal module is stopped before the terminal locking structure is pressed, it is guaranteed that follow-up locking operation is conducted smoothly, and the assembling quality is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of conductive connection devices, and in particular to a high-speed connector. Background Art

[0002] Ethernet connector is a high-speed connector that can transmit data and signals at high speed. It generally uses shielded twisted pair (STP) as the transmission medium to connect the corresponding equipment to the Ethernet network. In the vehicle environment, it is mainly used to connect the automotive electronic control unit (ECU) and sensors to achieve high-speed data transmission and communication between various devices inside the car. Compared with the traditional CAN bus, the automotive Ethernet connector has a higher transmission rate and lower latency, and can support more automotive application scenarios and more complex automotive electronic systems. The application areas of automotive Ethernet connectors include automotive intelligent driving, vehicle networking and in-vehicle entertainment. It can support high-speed data transmission and communication between various sensors, cameras and controllers inside the vehicle, and realize functions such as automatic driving, remote monitoring and vehicle networking. At the same time, the automotive Ethernet connector can also support the transmission of audio and video data of the in-vehicle entertainment system to improve the in-vehicle entertainment experience.

[0003] The structural form of the high-speed connector currently used in automobiles can be found in a connector for automobile applications disclosed in a Chinese invention patent with authorization announcement number CN112421276B. The connector includes a signal contact, an insulating element, and an external shielding contact. The signal contacts are arranged in pairs, and the two signal contacts are arranged roughly parallel to each other along the plug-in direction of the connector. The two signal contacts are respectively connected to the two conductor cores of the cable. The two signal contacts are installed in the insulating element, and the insulating element can lock the signal contact in the axial direction. The external shielding contact surrounds the internal signal contact and the insulating element to provide shielding against interference signals. The external shielding contact is fixed to the insulating element, and the tail end of the external shielding contact is provided with a crimping portion for crimping and fixing the cable shielding layer, and the head end of the external shielding contact is provided with a contact for conducting contact with the shielding structure of the mating connector; the connector is inserted into the connector housing, and when inserted into place, the limiting protrusion on the external shielding contact will press against the inner wall of the connector housing and cannot continue to move forward. In order to positionally fix the connector housing to the connector, the connector housing includes a terminal position ensurer (TPA) in the form of a pusher, which is radially pushed into the connector housing to positionally fix the connector housing to the connector in the axial direction to prevent backing off.

[0004] The signal contact of the above-mentioned connector is the terminal, the insulating element is the insulator used to fix the terminal, the external shielding contact constitutes a shielding shell arranged on the periphery of the insulator to shield the terminal, and the connector formed after the signal contact, the insulating element, the external shielding contact and the cable are assembled constitutes a terminal module. The connector shell is provided with a module installation cavity for the terminal module to be installed as a whole. The terminal position ensurer constitutes a terminal locking structure. After the terminal module is installed in the connector shell, the terminal position ensurer is pressed to extend into the module installation cavity of the connector shell and form a stop for the shielding shell of the terminal module in the module installation cavity to prevent the terminal module from retreating. The terminal is locked by limiting the terminal module to ensure the position of the terminal. In the automated production process of connectors, the action of inserting the terminal module into the connector housing and the pressing and locking action of the terminal locking structure belong to different processes and are performed at different workstations. In this way, after the terminal module is inserted into the connector housing and before the terminal locking structure is pressed, the terminal module may easily move backward due to vibration or misoperation, thereby affecting the subsequent locking operation of the terminal locking structure. The position of the terminal locking structure and the terminal module may deviate, making it impossible for the terminal locking structure to be smoothly locked into place, affecting assembly efficiency, and even easily damaging parts due to forced pressing. Summary of the invention

[0005] The object of the present invention is to provide a high-speed connector to solve the problem that the locking operation of the current high-speed connector is easily affected by the retreat of the terminal module before the terminal locking structure is locked during the assembly process.

[0006] The technical solution of the high-speed connector of the present invention is: A high-speed connector includes a connector housing and a terminal module. The connector housing is provided with a module installation cavity for installing the terminal module. The terminal module includes an insulator, a terminal installed in the insulator, and a shielding shell arranged outside the insulator. The connector housing is provided with a terminal locking structure which is pressed by external force to extend into the module installation cavity to stop the terminal module from retreating after the terminal module is installed in the module installation cavity. One of the terminal module and the inner wall of the module installation cavity is provided with a limit spring claw, and the other is provided with a limit stop wall. The limit spring claw is deformed by force during the process of installing the terminal module into the module installation cavity and is reset when the terminal module is installed in place and cooperates with the limit stop wall to stop the terminal module from retreating before the terminal locking structure is pressed.

[0007] Beneficial effect: The present invention is an improvement on the high-speed connector in the prior art, and utilizes the limit spring claws and the limit stop wall respectively arranged on the inner wall of the module installation cavity of the terminal module and the connector shell to cooperate to form a pre-positioning. The limit spring claws are deformed by force during the process of installing the terminal module into the module installation cavity, and are reset and cooperate with the limit stop wall when the terminal module is installed in place, so that the terminal module can be stopped when it is installed into the connector shell without affecting the normal loading operation of the terminal module, and the installation position of the terminal module can be maintained before the terminal locking structure is pressed to lock the terminal module, and the position of the terminal module before the terminal locking structure is locked is not easily affected by external factors, thereby ensuring that the subsequent locking operation is carried out smoothly, which is beneficial to ensuring the assembly quality.

[0008] Furthermore, the shielding shell includes an insulator crimping portion for wrapping around the insulator by crimping and fixing, the limiting spring claw is arranged on the insulator crimping portion of the shielding shell, and the limiting retaining wall is arranged on the inner wall of the module installation cavity.

[0009] Furthermore, the insulator crimping portion includes two crimping wings arranged opposite to each other at an interval, the two crimping wings are used to be folded and deformed to be crimped and fixed on the insulator, and the limiting claw is arranged on the portion of the insulator crimping portion located between the two crimping wings.

[0010] Furthermore, it is defined that the terminal module is inserted into the module installation cavity from the rear end of the connector shell, and a limiting groove is provided on the inner wall of the module installation cavity. The groove wall of the limiting groove close to the rear end of the connector shell constitutes the limiting stop wall, and the limiting spring claw is protruded on the terminal module. When the terminal module is installed into the module installation cavity, the limiting spring claw passes over the limiting stop wall and cantilevers toward the rear end of the connector shell to form a stopping fit with the limiting stop wall.

[0011] Furthermore, the shielding shell is crimped and fixed on the tail of the insulator, and the high-speed connector also includes a shielding spring, and a spring installation cavity for inserting the shielding spring is provided on the connector housing, the shielding spring is provided with an external contact portion and an internal contact portion, and the spring installation cavity is provided with an outer opening for exposing the external contact portion of the shielding spring to contact the shielding structure of the adapter connector, and an inner opening for exposing the internal contact portion of the shielding spring to contact the shielding shell of the terminal module.

[0012] Furthermore, the shielding spring includes a fixed part fixed in the spring installation cavity and a spring part cantilevered toward the head side of the connector shell based on the fixed part, the external contact part and the internal contact part are both arranged on the spring part, the root of the spring part close to the fixed part is provided with an inward bending structure, the inward contact part is arranged at the inward bending structure, the end of the spring part away from the fixed part is provided with an outward bending structure and the edge of the end is bent toward the module installation cavity, the external contact part is arranged at the outward bending structure and the external contact part protrudes outward from the outer opening so as to deform inward when the adapter connector is plugged in, and the spring installation cavity is provided with a space connected to the module installation cavity at the end edge of the spring part so that its edge can abut against the shielding shell when the end of the spring part is deformed inward.

[0013] Furthermore, the terminal locking structure is a cover plate integrally connected to the connector housing, a weak structure is provided at the connection point between the cover plate and the connector housing so that the cover plate can be swingably set on the connector housing, a hook is provided at the end of the cover plate away from the connection point with the connector housing, and a avoidance notch is provided on the connector housing for the hook to extend into the module installation cavity, the avoidance notch is provided with a snap-fitting edge for forming a snap-fitting fit with the hook when the hook is extended into the module installation cavity by pressing the cover plate, and a locking portion is provided on the hook for stopping the terminal module from retreating.

[0014] Furthermore, the clamping edge is provided with a guiding inclined surface for guiding the clamping hook of the cover plate to pass through the avoidance notch and enter the module installation cavity.

[0015] Furthermore, a bending structure is provided at one end of the cover plate away from the connection with the connector housing, the bending structure forms the hook, and the bending structure includes a transition slope arranged inwardly, and when the hook forms a snap fit with the snap edge, the transition slope is opposite to the guide slope.

[0016] Furthermore, an observation port for observing the core wire of the cable is provided between the portion of the shielding shell used for crimping and fixing the cable and the portion of the shielding shell used for crimping and fixing the insulator. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a high-speed connector according to an embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram showing the components of a high-speed connector after removing the cable; Figure 3 A longitudinal cross-sectional view of a high-speed connector according to an embodiment of the present invention; Figure 4 for Figure 2 A schematic diagram of a shielding shell in FIG. Figure 5 is a transverse cross-sectional view of a high-speed connector according to an embodiment of the present invention; Figure 6 The figure is a schematic diagram of the plug-in relationship between the high-speed connector and the adapter connector according to an embodiment of the present invention.

[0018] In the figure: 1. Connector housing; 10. Module mounting cavity; 11. Limiting retaining wall; 12. Spring leaf mounting cavity; 13. Clamping edge; 14. Directional matching groove; 15. External opening; 16. Internal opening; 17. Limiting retaining platform; 2. Cover plate; 21. Hook; 3. Insulator; 31. Terminal mounting cavity; 32. Crimp matching groove; 33. Avoiding groove; 34. Limiting convex block; 35. Directional convex platform; 4. Shielding shell; 41. Limiting claw; 42. Insulator crimping part; 43. Cable crimping part; 44. Waist-retracting structure; 5. Terminal; 51. Retracting matching groove; 6. Shielding spring leaf; 61. Spring leaf part; 62. Fixed part; 63. External contact part; 64. Internal contact part; 7. Cable; 200, adapter connector; 201, adapter shielding structure. DETAILED DESCRIPTION

[0019] The basic concept of the present invention is to utilize the limit spring claws and the limit stop wall respectively arranged on the inner wall of the module installation cavity of the terminal module and the connector housing to cooperate to form a pre-positioning, so as to maintain the installation position of the terminal module before the terminal locking structure is pressed to lock the terminal module, and to avoid affecting the locking operation due to the retreat of the terminal module before the terminal locking structure is locked.

[0020] The following is a specific description with reference to embodiments.

[0021] Embodiments of the high-speed connector of the present invention: like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the high-speed connector includes a connector housing 1 and a terminal module, the terminal module includes an insulator 3, a terminal 5 installed in the insulator 3 and a shielding shell 4 arranged outside the insulator 3, the connector housing 1 is provided with a module installation cavity 10 for the terminal module to be installed, the connector housing 1 is provided with a terminal locking structure which is pressed by external force to extend into the module installation cavity 10 to stop the terminal module from retreating after the terminal module is installed in the module installation cavity 10, a limiting spring claw 41 is provided on the terminal module, and a limiting stop wall 11 is provided on the inner wall of the module installation cavity 10, the limiting spring claw 41 and the limiting stop wall 11 form a stopping cooperation in the direction opposite to the loading direction after the terminal module is loaded into the module installation cavity 10, the limiting spring claw 41 is deformed by force during the process of loading the terminal module into the module installation cavity 10 and resets when the terminal module is loaded into place to stop and cooperate with the limiting stop wall 11 to stop the terminal module from retreating before the terminal locking structure is pressed.

[0022] The terminal module can be pre-positioned by using the limiting spring claws 41 and the limiting retaining wall 11 respectively arranged on the inner wall of the module installation cavity 10 of the terminal module and the connector housing 1. When the terminal module is loaded into the module installation cavity 10, the limiting spring claws 41 and the limiting retaining wall 11 form a stop cooperation in the direction opposite to the terminal module loading direction, which does not affect the normal loading operation of the terminal module while preventing the terminal module from being retracted when it is loaded into the connector housing 1. The terminal module can be kept in its installed position before the terminal locking structure is pressed and the terminal module is locked. The terminal module position before the terminal locking structure is locked is not easily affected by external factors, ensuring the smooth subsequent locking operation, which is beneficial to ensuring the assembly quality and facilitating the automated assembly of the connector. In other embodiments, the limiting retaining wall can also be arranged on the terminal module, and the limiting spring claws can be arranged on the inner wall of the module installation cavity of the connector housing. When the terminal module is loaded into the module installation cavity, the limiting retaining wall passes over the limiting spring claws and the limiting spring claws are elastically deformed and restored to stop the limiting retaining wall 11.

[0023] The plug-in direction of the height connector is defined as the front-to-back direction, with the plug-in end of the connector facing forward. The front-to-back direction is also the head-to-tail direction of the connector, with the left-to-right direction being the horizontal direction and the up-down direction being the vertical direction. The cable 7 is connected to the rear of the connector. The connector is used for high-speed transmission of data or signals. Two terminals 5 are provided in pairs. The two terminals 5 are arranged side by side on the left and right. The terminal 5 is fixedly connected to the conductor core of the cable 7. The cable 7 has two conductor cores, and the cable 7 is a shielded twisted pair. The terminal 5 is fixedly installed in the insulator 3. The insulator 3 is provided with two terminal installation cavities 31 for respectively installing the two terminals 5. The terminal 5 is installed from the rear end of the insulator 3. A corner of the rear opening of the terminal installation cavity 31 is provided with an anti-mistake chamfer to prevent mistakes when the terminal 5 is installed. The shielding shell 4 is crimped and fixed on the insulator 3, and the shielding shell 4 and the shielding layer of the cable 7 are crimped and fixed. After the terminal 5, the insulator 3, the shielding shell 4 and the cable 7 are assembled, a terminal module is formed. The terminal module is integrally inserted into the module mounting cavity 10 of the connector housing 1. The loading direction of the terminal module is the forward direction, and the direction opposite to the loading direction is the backward direction. The terminal module is inserted into the module mounting cavity 10 from the rear end of the connector housing 1.

[0024] The shielding shell 4 includes an insulator crimping portion 42 and a cable crimping portion 43 arranged at the front and rear. The insulator crimping portion 42 is used to be wrapped on the insulator 3 by crimping and fixing, and the cable crimping portion 43 is used to be crimped and fixed with the shielding layer of the cable 7. The limiting claw 41 is arranged on the insulator crimping portion 42 of the shielding shell 4. The limiting claw 41 is arranged at the portion of the shielding shell 4 that is crimped and fixed with the insulator 3 to ensure the stability of the portion of the limiting claw 41, which is conducive to reliable limiting. At the same time, the limiting claw 41 is arranged at the shielding shell 4 made of metal material to ensure that the limiting claw 41 has good elastic deformation ability. In other embodiments, the limiting claw 41 can also be arranged on the insulator 3. In other embodiments, the shielding shell can also have a front shielding part located at the front side of the insulator crimping part and arranged around the insulator, and the limiting claw is arranged on the front shielding part of the shielding shell instead of the insulator crimping part.

[0025] The insulator crimping part 42 of the shielding shell 4 includes two crimping wings arranged opposite to each other on the left and right sides, and the two crimping wings are used to be folded and deformed to be crimped and fixed on the insulator 3. When the insulator crimping part 42 is not crimped, it presents a U-shaped structure with the opening facing upward. The limiting spring claw 41 is arranged at the position between the two crimping wings of the insulator crimping part 42, which is also the lower side wall corresponding to the upper opening of the insulator crimping part 42 before crimping. This position has a relatively large area, which is convenient for setting the limiting spring claw 41, and does not affect the crimping and fixing strength of the shielding shell 4 and the insulator 3. In other embodiments, the limiting spring claws can also be respectively arranged on the lower side of the crimping wings of the left and right side walls of the insulation crimping part, and accordingly, the left and right side walls of the module installation cavity are respectively provided with limiting retaining walls to cooperate with the limiting spring claws.

[0026] The connector housing 1 is made of insulating material, and a limiting groove is provided on the inner wall of the module installation cavity 10. The rear side groove wall of the limiting groove close to the rear end of the connector housing 1 constitutes a limiting retaining wall 11. The rear end of the connector housing 1 is the rear end. The limiting groove is arranged on the lower side wall of the module installation cavity 10 to cooperate with the limiting spring claw 41 arranged on the lower side wall of the shielding shell 4. The limiting groove is a square groove structure with the notch facing upward, and the limiting retaining wall 11 is arranged forward. The limit claw 41 is protrudingly arranged on the shielding shell 4 of the terminal module. The limit claw 41 is integrally connected with the main body of the shielding shell 4. The limit claw 41 is formed by punching and bending. The limit claw 41 tilts from the front to the back and hangs downward. The end of the limit claw 41 protrudes downward from the lower surface of the main body of the shielding shell 4. When the terminal module is installed in the module installation cavity 10, the limit claw 41 is pressed by the lower side wall of the module installation cavity 10 and deforms upward. After the limit claw 41 passes over the limit stop wall 11, the elastic deformation is restored and stuck in the front side of the limit stop wall 11. The limit claw 41 and the limit stop wall 11 form a backward stop fit. The limit stop wall 11 is formed by the limit groove on the connector housing 1, which saves space and ensures reliable limit fit. In other embodiments, a limit boss can also be set on the inner wall of the module installation cavity of the connector housing to form a limit stop wall.

[0027] The front part of the shielding shell 4 is an insulating crimping part 42, and the front part of the shielding shell 4 is crimped and fixed to the tail of the insulator 3. The tail of the insulator 3 is the rear part thereof. The rear part of the insulator 3 is provided with a crimping fitting groove 32, and the two crimping wings of the insulating crimping part 42 of the shielding shell 4 are folded and deformed and fixed in the crimping fitting groove 32 at the rear of the insulator 3. The cable crimping part 43 of the shielding shell 4 for crimping and fixing the cable 7 and the insulator crimping part 42 for crimping and fixing the insulator 3 are arranged in a front-to-back interval to form an observation port for observing the core wire of the cable 7 therebetween. The cable 7 has two core wires, and the core wires include a conductor core and an insulating sleeve arranged outside the conductor core, and one terminal 5 is connected to the conductor core of one core wire. In other embodiments, the cable crimping part and the insulator crimping part of the shielding shell can also be connected front-to-back to completely cover the core wire portion of the cable in the shielding shell.

[0028] The terminal locking structure of the high-speed connector is a cover plate 2 integrally connected with the connector housing 1. A weak structure is provided at the connection between the cover plate 2 and the connector housing 1 so that the cover plate 2 can be swingably arranged on the connector housing 1. The cover plate 2 is suspended from the back to the front. The rear end of the cover plate 2 is connected to the connector housing 1. The front end of the cover plate 2 is an end away from the connection with the connector housing 1. A hook 21 is provided at the front end of the cover plate 2. Before the cover plate 2 is pressed, the front end of the cover plate 2 is tilted upward. The connector housing 1 is provided with a clearance notch for the hook 21 to extend into the module installation cavity 10 when the cover plate 2 is pressed. The clearance notch is provided with a clamping edge 13 for forming a clamping fit with the hook 21 when the hook 21 is inserted into the module installation cavity 10 by pressing the cover plate 2. The clamping edge 13 is the rear side edge of the clearance notch. The hook 21 can extend into the module installation cavity 10 through the clearance notch to stop and cooperate with the terminal module. The hook 21 is provided with a locking portion for stopping the terminal module. The terminal locking structure is formed by the cover plate 2 with the connector housing 1 to facilitate installation. In other embodiments, the terminal locking structure can also be a locking member independently provided relative to the connector housing, which is inserted into the connector housing from the side to prevent the terminal module from retreating.

[0029] The clamping edge 13 of the connector housing 1 is provided with a guiding inclined surface for guiding the hook 21 of the cover plate 2 to pass through the avoidance notch and enter the module installation cavity 10. The guiding inclined surface is inclined upward to facilitate the formation of a clamping fit between the hook 21 and the clamping edge 13, thereby reducing the pressing operation force. In other embodiments, an arc surface can also be provided on the clamping edge for guidance.

[0030] The front end of the cover plate 2 is provided with a bending structure, which has a backward bending section to form a hook 21 that can be engaged with the engaging edge 13. The portion of the bending structure connected to the overhanging body of the cover plate 2 is inclined relative to the overhanging body of the cover plate 2 and is provided with an inward transition slope, which is inclined downward. When the hook 21 is engaged with the engaging edge 13, the transition slope is opposite to the guiding slope. The hook 21 is formed by the bending structure with the transition slope, which is conducive to improving the elastic deformation capacity of the hook 21 and saving space. In other embodiments, the portion of the bending structure connected to the overhanging body of the cover plate can also be arranged vertically to the overhanging body of the cover plate.

[0031] The insulator 3 is provided with avoidance grooves 33 in the middle of the front-to-back direction corresponding to the two terminal 5 installation cavities, and the terminal 5 is provided with a back-stopping matching groove 51 corresponding to the avoidance groove 33. The front end of the cover plate 2 is provided with two hooks 21 at intervals on the left and right. After the cover plate 2 is pressed, the ends of the two hooks 21 pass through the avoidance grooves 33 on the insulator 3 and enter the back-stopping matching grooves 51 of the corresponding terminal 5. The ends of the hooks 21 stop the terminal 5, and the part of the ends of the hooks 21 entering the back-stopping matching grooves 51 constitutes a locking part to prevent the terminal module from backing out.

[0032] The avoidance groove 33 on the insulator 3 for avoiding the locking portion of the cover plate 2 is located in front of the crimping fitting groove 32 for crimping and fixing the shield shell 4. The shield shell 4 only surrounds the rear part of the insulator 3 but not the front part. In order to form shielding conduction, the shield shell 4 is combined with the shield shell 4 to form a shielding conduction. Figure 5 , Figure 6 The high-speed connector also includes a shielding spring 6. The connector housing 1 is provided with a spring installation cavity 12 for the shielding spring 6 to be installed. The shielding spring 6 is provided with an external contact portion 63 and an internal contact portion 64. The spring installation cavity 12 is provided with an external opening 15 for the external contact portion 63 of the shielding spring 6 to be exposed to contact with the shielding structure of the adapter connector 200 and an internal opening 16 for the internal contact portion 64 of the shielding spring 6 to be exposed to contact with the shielding shell 4 of the terminal module. The shielding structure of the adapter connector 200 is an adapter shielding structure 201. The shielding spring 6 is provided with two left and right shielding springs, which are respectively located on the left and right sides of the terminal module. The shielding spring 6 is used to contact the adapter shielding structure 201 of the adapter connector 200 and the shielding shell 4 of the terminal module, respectively, so as to form a shielding conduction after the connectors are plugged in. The structure is simple and the space occupied by the shielding structure is saved. In other embodiments, the shielding spring may not be provided separately, but the shielding shell completely covers the insulator, and a contact spring claw is provided at the front end of the shielding shell to form a shielding conduction when plugged in with the adapter connector.

[0033] The shielding spring 6 can provide floating deformation during the connector insertion process, and when the environment is harsh and the terminal 5 is stably fixed, the shielding spring 6 is elastic and can allow the terminal module to have a swing margin. During the shaking process, the shielding spring 6 can preferentially reduce the damage to the shielding shell 4 and the terminal 5 through its own deformation, and the deformation of the shielding spring 6 will not affect the crimping of the shielding shell 4.

[0034] The left and right side walls of the module installation cavity 10 are respectively provided with spring installation cavities 12 for two shielding springs 6 to be installed respectively, and the spring installation cavity 12 has a rear opening facing backwards for the shielding spring 6 to be installed from the rear side. The inner cavity wall of the spring installation cavity 12 close to the module installation cavity 10 is provided with an inner opening 16, which extends forward and backward and passes through the module installation cavity 10. The outer cavity wall of the spring installation cavity 12 away from the module installation cavity 10 is provided with an outer opening 15, which extends forward and backward and passes through the outer surface of the connector housing 1.

[0035] The shielding spring 6 includes a fixed portion 62 fixed in the spring installation cavity 12 and a spring portion 61 cantilevered toward the head side of the connector housing 1 based on the fixed portion 62. The fixed portion 62 is forcibly fixed in the spring installation cavity 12, and the spring portion 61 cantilevers forward. The spring portion 61 is provided with two front and rear bending portions, namely an inward bending portion and an outward bending portion. The inward bending portion is arranged at the root of the spring portion 61 connected to the fixed portion 62, and the outward bending portion is arranged at the end of the spring portion 61 away from the root. The inner side surface of the inward bending portion is provided with an inwardly protruding bulge, and the bulge forms an inward contact portion 64. The outer side surface of the outward bending portion is provided with an outwardly protruding bulge, and the bulge forms an external contact portion 63. The inner opening 16 of the spring installation cavity 12 can avoid the inner contact portion 64, and the outer opening 15 of the spring installation cavity 12 can avoid the external contact portion 63, so that the inner contact portion 64 and the external contact portion 63 can extend out of the spring installation cavity 12.

[0036] The external contact portion 63 and the internal contact portion 64 are both arranged on the spring sheet portion 61, the inward bending portion constitutes an inward bending structure arranged at the root of the spring sheet portion 61 close to the fixed portion 62, the internal contact portion 64 is arranged at the inward bending structure, and the external bending portion constitutes an outward bending structure arranged at the end of the spring sheet portion 61 away from the fixed portion 62. The internal contact portion 64 is arranged at the innermost corner of the inward bending structure, and the external contact portion 63 is arranged at the outermost corner of the outward bending structure. When the terminal module is installed in the module installation cavity 10, the shielding shell 4 presses the internal contact portion 64 of the shielding spring sheet 6 to deform the inward bending portion outward, and the internal contact portion 64 forms an elastic contact with the shielding shell 4. When the adapter connector 200 is plugged in, the external contact portion 63 is pressed by the adapter shielding structure 201 to deform the outward bending portion inward, and the external contact portion 63 is in elastic contact with the adapter shielding structure 201. The end edge of the spring sheet portion 61 is bent inward, and the spring sheet installation cavity 12 is provided with a space communicating with the module installation cavity 10 at the end edge of the spring sheet portion 61, so that when the adapter connector 200 is plugged in, the end of the spring sheet portion 61 is deformed inward so that its edge abuts against the side of the shielding shell 4, increasing the contact point, which is conducive to reliable shielding conduction. In other embodiments, the end edge of the spring sheet portion may not contact the shielding shell. In other embodiments, the main body of the spring sheet portion of the shielding spring sheet may also be a straight overhanging structure, and the inward contact portion and the outward contact portion are respectively formed by convex hulls provided on the spring sheet portion of the shielding spring sheet.

[0037] A limit stop 17 is also provided at the front end of the spring installation cavity of the connector housing. The end edge of the shielding spring extends to the inside of the limit stop 17, which can limit the shielding spring and prevent it from tilting outward, which is conducive to the reliable installation of the shielding spring.

[0038] The module installation cavity 10 is through-connected from front to back, and the front end of the terminal module is used to be plugged with the contact part of the adapter connector 200. The height connector is inserted into the head cavity of the adapter connector 200 to form shielding conduction and signal conduction. A limiting protrusion 34 is provided in the middle of the front-to-back direction of the insulator 3, and an inner stopper is provided in the module installation cavity 10. A groove is provided on the inner stopper. When the terminal module is inserted into the module installation cavity 10, the limiting protrusion 34 is inserted into the groove on the inner stopper to limit the forward position of the terminal module. A directional boss 35 biased to the upper part is provided on the insulator 3, and a directional matching groove 36 is provided on the inner wall of the module installation cavity 10. The positioning boss 35 cooperates with the directional matching groove 36, which can play an error-proofing role when the terminal module is installed in the module installation cavity 10. A waist structure 44 is provided in the middle of the shielding shell 4. The waist structure 44 is located at the position where the spacing between the two core wires changes. The radial size is reduced to strengthen the fixation of the two core wires of the cable 7, and the impedance matching effect is better, further improving the high-speed performance of the connector.

[0039] 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 high-speed connector, comprising a connector housing (1) and a terminal module, the connector housing being provided with a module installation cavity (10) for loading the terminal module, the terminal module comprising an insulator (3), a terminal (5) installed in the insulator, and a shielding shell (4) arranged outside the insulator, the connector housing (1) being provided with a terminal locking structure which, after the terminal module is loaded into the module installation cavity (10), is pressed by an external force so as to extend into the module installation cavity to stop the terminal module from retreating, wherein: One of the terminal module and the inner wall of the module installation cavity is provided with a limit spring claw (41), and the other is provided with a limit stop wall (11); the limit spring claw (41) is deformed by force during the process of installing the terminal module into the module installation cavity (10), and is reset and cooperates with the limit stop wall (11) when the terminal module is installed in place, so as to stop the terminal module from retreating before the terminal locking structure is pressed.

2. The high-speed connector according to claim 1, characterized in that: The shielding shell (4) comprises an insulator crimping portion (42) for wrapping around the insulator (3) by crimping and fixing, the limiting spring claw (41) is arranged on the insulator crimping portion (42) of the shielding shell (4), and the limiting retaining wall (11) is arranged on the inner wall of the module installation cavity (10).

3. The high-speed connector according to claim 2, characterized in that: The insulator crimping portion (42) comprises two crimping wings arranged opposite to each other at an interval, the two crimping wings being used to be folded and deformed to be crimped and fixed on the insulator (3), and the limiting spring claw (41) is arranged at a portion of the insulator crimping portion (42) located between the two crimping wings.

4. The high-speed connector according to claim 1, 2 or 3, characterized in that: The terminal module is defined as being inserted into the module installation cavity (10) from the rear end of the connector housing (1), the inner wall of the module installation cavity (10) being provided with a limiting groove, the groove wall of the limiting groove close to the rear end of the connector housing (1) constituting the limiting retaining wall (11), the limiting spring claw (41) being protrudingly arranged on the terminal module, and the terminal module being inserted into the module installation cavity (10), the limiting spring claw (41) passing over the limiting retaining wall (11) and cantilevering toward the rear end of the connector housing (1) to form a retaining fit with the limiting retaining wall (11).

5. The high-speed connector according to claim 1, 2 or 3, characterized in that: The shielding shell (4) is crimped and fixed to the rear end of the insulator (3). The high-speed connector also includes a shielding spring (6). The connector housing (1) is provided with a spring installation cavity (12) for the shielding spring (6) to be installed. The shielding spring (6) is provided with an external contact portion (63) and an internal contact portion (64). The spring installation cavity (12) is provided with an external opening (15) for exposing the external contact portion (63) of the shielding spring (6) to contact the shielding structure of the adapter connector (200) and an internal opening (16) for exposing the internal contact portion (64) of the shielding spring (6) to contact the shielding shell (4) of the terminal module.

6. The high-speed connector according to claim 5, characterized in that: The shielding spring (6) comprises a fixed portion (62) fixed in the spring installation cavity (12) and a spring portion (61) cantilevered from the fixed portion (62) toward the head side of the connector housing (1), the external contact portion (63) and the internal contact portion (64) are both arranged on the spring portion (61), an inward bending structure is arranged at the root of the spring portion (61) close to the fixed portion (62), the internal contact portion (64) is arranged at the inward bending structure, and the spring portion (61) is away from the fixed portion. The end of the spring sheet portion (62) is provided with an outward bending structure and the edge of the end is bent toward the module installation cavity (10), the external contact portion (63) is provided at the outward bending structure and the external contact portion protrudes outward from the outer opening (15) so as to deform inward when the adapter connector (200) is plugged in, and the spring sheet installation cavity (12) is provided with a space connected to the module installation cavity (10) at the edge of the end of the spring sheet portion (61) so that the edge of the end of the spring sheet portion (61) can abut against the shielding shell (4) when the end of the spring sheet portion (61) is deformed inward.

7. The high-speed connector according to claim 1, 2 or 3, characterized in that: The terminal locking structure is a cover plate (2) integrally connected to a connector housing (1); a weak structure is provided at the connection point between the cover plate (2) and the connector housing (1) so that the cover plate (2) can be swingably arranged on the connector housing (1); a hook (21) is provided at one end of the cover plate (2) away from the connection point with the connector housing (1); a clearance notch is provided on the connector housing (1) for the hook (21) to extend into the module installation cavity (10); a clamping edge (13) is provided in the clearance notch for forming a clamping fit with the hook (21) when the hook (21) is extended into the module installation cavity (10) by pressing the cover plate (2); and a locking portion is provided on the hook (21) for preventing the terminal module from retreating.

8. The high-speed connector according to claim 7, characterized in that: The clamping edge (13) is provided with a guiding inclined surface for guiding the clamping hook (21) of the cover plate (2) to pass through the avoidance notch and enter the module installation cavity (10).

9. The high-speed connector according to claim 8, characterized in that: A bending structure is provided at one end of the cover plate (2) away from the portion connected to the connector housing (1), the bending structure forming the hook (21), the bending structure comprising a transition slope arranged inwardly, and when the hook (21) forms a snap fit with the snap edge (13), the transition slope is opposite to the guide slope.

10. The high-speed connector according to claim 1, 2 or 3, characterized in that: An observation port for observing the core wire of the cable (7) is provided between a portion of the shielding shell (4) used for crimping and fixing the cable (7) and a portion used for crimping and fixing the insulator (3).

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