High-speed connector

Abstract

The present invention relates to the technical field of conductive connection apparatuses, and specifically relates to a high-speed connector. The high-speed connector comprises a connector housing and a terminal module, and the connector housing is provided with a module installation cavity for the terminal module to be installed therein. The terminal module comprises an insulator, terminals installed in the insulator and a shielding casing provided outside the insulator; the connector housing is provided with a terminal locking structure which is pressed by external force after the terminal module is installed in the module installation cavity so as to extend into the module installation cavity for retaining the terminal module. One of the terminal module and the inner wall of the module installation cavity is provided with a position-limiting elastic claw, and the other is provided with a position-limiting stop wall; the position-limiting elastic claw is deformed under force during the process of the terminal module being installed in the module installation cavity, is reset when the terminal module is installed in place and is in stop fit with the position-limiting stop wall, so as to retain the terminal module before the terminal locking structure is pressed, thereby ensuring the smooth proceeding of subsequent locking operations, and helping to ensure assembly quality.

Description

A high-speed connector Technical Field

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

[0002] An Ethernet connector is a high-speed connector capable of transmitting data and signals at high speeds. It typically uses shielded twisted-pair (STP) cable as the transmission medium to connect devices to an Ethernet network. In automotive environments, it is primarily used to connect automotive electronic control units (ECUs) and sensors, enabling high-speed data transmission and communication between various devices within the vehicle. Compared to the traditional CAN bus, automotive Ethernet connectors offer higher transmission rates and lower latency, supporting a wider range of automotive applications and more complex automotive electronic systems. Applications of automotive Ethernet connectors include intelligent driving, vehicle networking, and in-vehicle entertainment. It supports high-speed data transmission and communication between various sensors, cameras, and controllers within the vehicle, enabling functions such as autonomous driving, remote monitoring, and vehicle networking. Furthermore, automotive Ethernet connectors can also support audio and video data transmission for in-vehicle entertainment systems, enhancing the in-vehicle entertainment experience.

[0003] The structural form of high-speed connectors currently used in automobiles can be seen in Chinese invention patent CN112421276B, which discloses a connector for automotive applications. This connector includes signal contacts, an insulating element, and an external shielding contact. The signal contacts are arranged in pairs, roughly parallel to each other along the insertion 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, which can lock the signal contacts in the axial direction. The external shielding contact surrounds the internal signal contacts and the insulating element to provide shielding against interference signals. The external shielding contact is fixed to the insulating element. The tail end of the external shielding contact has a crimping portion for crimping and fixing the cable shielding layer, and the head end of the external shielding contact has a contact for making conductive contact with the shielding structure of the mating connector. When the connector is inserted into the connector housing, the limiting protrusion on the external shielding contact will abut against the inner wall of the connector housing and cannot move further forward. To secure the connector housing to the connector, the connector housing includes a terminal position guarantor (TPA) in the form of a pusher, which is radially pushed into the connector housing to secure the connector housing to the connector in the axial direction and prevent it from retracting.

[0004] The signal contacts of the aforementioned connector are terminals, the insulating elements are insulators used to fix and install the terminals, and the external shielding contacts constitute a shielding shell set around the insulator to shield the terminals. The connector formed by assembling the signal contacts, insulating elements, external shielding contacts, and cables constitutes a terminal module. The connector housing has a module mounting cavity for the entire terminal module to be installed. The terminal position retainer constitutes a terminal locking structure. After the terminal module is installed in the connector housing, by pressing the terminal position retainer, it extends into the module mounting cavity of the connector housing and blocks the shielding shell of the terminal module in the module mounting cavity to prevent the terminal module from moving backward. By limiting the terminal module, the terminal is locked, ensuring the position of the terminal. In the automated production of connectors, the insertion of the terminal module into the connector housing and the pressing and locking action of the terminal locking structure are different processes performed at different workstations. Thus, after the terminal module is inserted into the connector housing but before the terminal locking structure is pressed in, vibration or misoperation can easily cause the terminal module to move backward, which in turn affects 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 lock in place smoothly, affecting assembly efficiency, and may even damage parts due to forced pressing. Summary of the Invention

[0005] The purpose of this invention is to provide a high-speed connector to solve the problem that in current high-speed connectors, the locking operation is easily affected by the retraction 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 as follows: A high-speed connector includes a connector housing and a terminal module. The connector housing is provided with a module mounting cavity for the terminal module to be installed. The terminal module includes an insulator, terminals installed in the insulator, and a shielding shell disposed outside the insulator. The connector housing is provided with a terminal locking structure that prevents the terminal module from retracting after it is installed in the module mounting cavity by pressing it with external force. One of the terminal module and the inner wall of the module mounting cavity is provided with a limiting claw, and the other is provided with a limiting stop. The limiting claw is deformed by force during the process of the terminal module being installed in the module mounting cavity and resets when the terminal module is installed in place, and cooperates with the limiting stop to prevent the terminal module from retracting before the terminal locking structure is pressed.

[0007] Beneficial effects: This invention improves upon existing high-speed connectors by utilizing a pre-positioning mechanism formed by limiting claws and limiting blocks respectively installed on the inner walls of the module mounting cavities of the terminal module and the connector housing. The limiting claws deform under force during the insertion of the terminal module into the module mounting cavity and reset when the terminal module is in place, engaging with the limiting blocks. This prevents the terminal module from retracting once it is installed into the connector housing without affecting the normal insertion operation. It maintains the terminal module's installation position before the terminal locking structure is pressed and locks the terminal module, making it less susceptible to external factors affecting the terminal module's position before locking, ensuring smooth subsequent locking operations and improving assembly quality.

[0008] Furthermore, the shielding shell includes an insulator crimping portion for being wrapped around an insulator by crimping, the limiting claw is disposed on the insulator crimping portion of the shielding shell, and the limiting baffle is disposed on the inner wall of the module mounting cavity.

[0009] Furthermore, the insulator crimping portion includes two crimping wings arranged at intervals and opposite to each other. The two crimping wings are used to close and deform to crimp and fix them onto the insulator. The limiting claw is arranged on the part of the insulator crimping portion located between the two crimping wings.

[0010] Furthermore, the terminal module is defined to be inserted into the module mounting cavity from the tail end of the connector housing. The inner wall of the module mounting cavity is provided with a limiting groove. The groove wall of the limiting groove near the tail end of the connector housing constitutes the limiting baffle. The limiting claw protrudes on the terminal module. When the terminal module is installed in the module mounting cavity, the limiting claw passes over the limiting baffle and extends toward the tail end of the connector housing to form a blocking engagement with the limiting baffle.

[0011] Furthermore, the shielding shell is crimped and fixed to the tail of the insulator. The high-speed connector also includes a shielding spring. The connector housing is provided with a spring mounting cavity for the shielding spring to be installed. The shielding spring is provided with an external contact portion and an internal contact portion. The spring mounting cavity is provided with an external opening for the external contact portion of the shielding spring to be exposed to contact the shielding structure of the adapter connector and an internal opening for the internal contact portion of the shielding spring to be exposed to contact the shielding shell of the terminal module.

[0012] Furthermore, the shielding spring includes a fixed portion fixed within the spring mounting cavity and a spring portion extending from the fixed portion toward the head of the connector housing. Both the external contact portion and the internal contact portion are provided on the spring portion. The root of the spring portion near the fixed portion has an inwardly bent structure, and the internal contact portion is provided at the inwardly bent structure. The end of the spring portion away from the fixed portion has an outwardly bent structure, and the edge of this end bends toward the module mounting cavity. The external contact portion is provided at the outwardly bent structure, and the external contact portion protrudes outward from the external opening to deform inward when the adapter connector is mated. The spring mounting cavity has a space at the end edge of the spring portion that communicates with the module mounting cavity so that when the end of the spring portion deforms inward, its edge abuts against the shielding shell.

[0013] Furthermore, the terminal locking structure is a cover plate integrally connected to the connector housing. The connection between the cover plate and the connector housing has a weak structure to allow the cover plate to be swayably mounted on the connector housing. A hook is provided at the end of the cover plate away from the connection with the connector housing. The connector housing has a clearance notch for the hook to extend into the module mounting cavity. The clearance notch has a locking edge for engaging with the hook when the hook is extended into the module mounting cavity by pressing the cover plate. The hook has a locking part for preventing the terminal module from retracting.

[0014] Furthermore, the snap-fit ​​edge is provided with a guide slope for guiding the snap hook of the cover plate through the clearance notch into the module mounting cavity.

[0015] Furthermore, the end of the cover plate away from the connection with the connector housing is provided with a bending structure, which forms the hook. The bending structure includes an inwardly facing transition slope. When the hook and the snap-fit ​​edge form a snap-fit ​​engagement, 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 part of the shielding shell used for crimping and fixing the cable and the part used for crimping and fixing the insulator. Attached Figure Description

[0017] Figure 1 is a structural schematic diagram of the high-speed connector according to an embodiment of the present invention; Figure 2 is a schematic diagram of the components of the high-speed connector in Figure 1 after the cable is removed; Figure 3 is a longitudinal sectional view of the high-speed connector according to an embodiment of the present invention; Figure 4 is a schematic diagram of the shielding shell in Figure 2; Figure 5 is a transverse sectional view of the high-speed connector according to an embodiment of the present invention; Figure 6 is a schematic diagram of the mating relationship between the high-speed connector and the adapter connector according to an embodiment of the present invention.

[0018] In the diagram: 1. Connector housing; 10. Module mounting cavity; 11. Limiting baffle; 12. Spring mounting cavity; 13. Snap-fit ​​edge; 14. Orientation groove; 15. External opening; 16. Internal opening; 17. Limiting baffle; 2. Cover plate; 21. Hook; 3. Insulator; 31. Terminal mounting cavity; 32. Crimping groove; 33. Alternating groove; 34. Limiting protrusion; 35. Orientation boss; 4. Shielding shell; 41. Limiting claw; 42. Insulator crimping part; 43. Cable crimping part; 44. Waist-tightening structure; 5. Terminal; 51. Anti-reverse groove; 6. Shielding spring; 61. Spring part; 62. Fixing part; 63. External contact part; 64. Internal contact part; 7. Cable; 200. Adaptor connector; 201. Adaptor shielding structure. Detailed Implementation

[0019] The basic concept of this invention is to utilize the limiting claws and limiting blocks respectively provided on the inner walls of the module mounting cavity of the terminal module and the connector housing to form a pre-positioning mechanism, so as to maintain the installation position of the terminal module before the terminal locking structure is pressed to lock the terminal module, and avoid the locking operation being affected by the terminal module retraction before the terminal locking structure is locked.

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

[0021] An embodiment of the high-speed connector of the present invention: As shown in Figures 1, 2, 3, and 4, the high-speed connector includes a connector housing 1 and a terminal module. The terminal module includes an insulator 3, terminals 5 installed inside the insulator 3, and a shielding shell 4 disposed outside the insulator 3. The connector housing 1 is provided with a module mounting cavity 10 for inserting the terminal module. The connector housing 1 is provided with a terminal locking structure that prevents the terminal module from retracting after it is inserted into the module mounting cavity 10 by external force. The terminal module is provided with a limiting claw 41, and a limiting baffle 11 is provided on the inner wall of the module mounting cavity 10. The limiting claw 41 and the limiting baffle 11 form a blocking engagement in the opposite direction to the insertion direction after the terminal module is inserted into the module mounting cavity 10. The limiting claw 41 is deformed by force during the insertion of the terminal module into the module mounting cavity 10 and resets when the terminal module is inserted into the module mounting cavity 10, thereby preventing the terminal module from retracting before the terminal locking structure is pressed.

[0022] By utilizing the limiting claw 41 and limiting stop 11 respectively provided on the inner wall of the module mounting cavity 10 of the terminal module and the connector housing 1, the terminal module can be pre-positioned. When the terminal module is installed into the module mounting cavity 10, the limiting claw 41 and the limiting stop 11 form a blocking engagement in the opposite direction of the terminal module installation direction. This prevents the terminal module from retracting after being installed into the connector housing 1 without affecting the normal installation operation of the terminal module. It can maintain the installation position of the terminal module before the terminal locking structure is pressed and locks the terminal module, making it less susceptible to external factors affecting the position of the terminal module before the terminal locking structure locks, ensuring smooth subsequent locking operations, which is beneficial to ensuring assembly quality and facilitating automated assembly of the connector. In other embodiments, a limiting stop 11 can be provided on the terminal module and a limiting claw 11 can be provided on the inner wall of the module mounting cavity of the connector housing. When the terminal module is installed into the module mounting cavity, the limiting claw 11 elastically deforms and returns to its original position after the limiting stop 11 passes over it.

[0023] The insertion direction of this height connector is defined as the front-to-back direction, with the connector's insertion end facing forward. The front-to-back direction is also the head-to-tail direction of the connector. The left-to-right direction is defined as the lateral direction, and the up-to-down direction as the longitudinal direction. Cable 7 is connected to the tail of the connector. The connector is used for high-speed data or signal transmission. Terminals 5 are provided in pairs, arranged side-by-side. Terminals 5 are fixedly connected to the conductor cores of cable 7. Cable 7 has two conductor cores and is a shielded twisted-pair cable. Terminals 5 are fixedly installed inside insulator 3. Insulator 3 has two terminal mounting cavities 31 for inserting the two terminals 5. Terminals 5 are inserted from the rear end of insulator 3. A corner of the rear opening of the terminal mounting cavity 31 has an anti-misalignment chamfer to prevent incorrect insertion of the terminal 5. The shielding shell 4 is crimped and fixed on the insulator 3, and the shielding shell 4 is crimped and fixed to the shielding layer of the cable 7. After the terminal 5, insulator 3, shielding shell 4 and cable 7 are assembled, a terminal module is formed. The terminal module is inserted into the module mounting cavity 10 of the connector housing 1. The insertion direction of the terminal module is forward, and the opposite direction is backward. The terminal module is inserted into the module mounting cavity 10 from the tail 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 wrap around the insulator 3 by crimping and fixing, and the cable crimping portion 43 is used to crimp and fix the shielding layer of the cable 7. A limiting claw 41 is provided on the insulator crimping portion 42 of the shielding shell 4. The limiting claw 41 is provided at the part of the shielding shell 4 that is crimped and fixed to the insulator 3 to ensure the stability of the limiting claw 41 part, which is conducive to reliable limiting. At the same time, the use of metal material for the shielding shell 4 to provide the limiting claw 41 can ensure that the limiting claw 41 has good elastic deformation ability. In other embodiments, the limiting claw 41 can also be provided on the insulator 3. In other embodiments, the shielding shell can also have a front shielding portion located in front of the insulator crimping portion and surrounding the insulator, and the limiting claw can be provided on the front shielding portion of the shielding shell instead of the insulator crimping portion.

[0025] The insulating crimping portion 42 of the shielding shell 4 includes two crimping wings arranged opposite each other on the left and right sides. These two crimping wings are used to close and deform to crimp and fix onto the insulator 3. When the insulating crimping portion 42 is not crimped, it presents a U-shaped structure with the opening facing upwards. The limiting claw 41 is arranged in the part of the insulating crimping portion 42 located between the two crimping wings. This part is also the lower sidewall corresponding to the upper opening of the insulating crimping portion 42 before crimping. This part has a relatively large area, which facilitates the installation of the limiting claw 41 and does not affect the crimping and fixing strength between the shielding shell 4 and the insulator 3. In other embodiments, limiting claws can also be provided on the lower side of the crimping wings on the left and right sidewalls of the insulating crimping portion. Correspondingly, limiting baffles are provided on the left and right sidewalls of the module mounting cavity to cooperate with the limiting claws.

[0026] The connector housing 1 is made of insulating material. The inner wall of the module mounting cavity 10 is provided with a limiting groove. The rear side wall of the limiting groove near the tail end of the connector housing 1 forms a limiting baffle 11. The tail end of the connector housing 1 is the rear end. The limiting groove is set on the lower side wall of the module mounting cavity 10 to cooperate with the limiting claw 41 set on the lower side wall of the shielding shell 4. The limiting groove is a square groove structure with the opening facing upwards, and the limiting baffle 11 is set facing forward. A limiting claw 41 protrudes from the shielding shell 4 of the terminal module. The limiting claw 41 is integrally connected to the main body of the shielding shell 4. The limiting claw 41 is formed by punching and bending. The limiting claw 41 extends downward at an angle from front to back, and its end protrudes downward from the lower surface of the main body of the shielding shell 4. When the terminal module is installed into the module mounting cavity 10, the limiting claw 41 is deformed upward by the pressure of the lower side wall of the module mounting cavity 10. After the limiting claw 41 passes the limiting stop 11, its elastic deformation recovers and it is stuck in front of the limiting stop 11. The limiting claw 41 and the limiting stop 11 form a rearward stop fit. The limiting stop 11 is formed by using the limiting groove on the connector housing 1, which saves space and ensures a reliable limiting fit. In other embodiments, a limiting boss can also be provided on the inner wall of the module mounting cavity of the connector housing, forming a limiting stop.

[0027] The front of the shielding shell 4 is an insulating crimping part 42, which is crimped and fixed to the tail of the insulator 3. The tail of the insulator 3 is its rear part, and the rear part of the insulator 3 is provided with a crimping groove 32. The two crimping wings of the insulating crimping part 42 of the shielding shell 4 are closed and deformed and fixed in the crimping groove 32 of the rear part of the insulator 3. The cable crimping part 43 of the shielding shell 4 for crimping and fixing the cable 7 and the insulating crimping part 42 for crimping and fixing the insulator 3 are arranged at intervals to form an observation port for observing the core wire of the cable 7 between them. The cable 7 has two core wires, each core wire including a conductor core and an insulating sleeve covering the conductor core. One terminal 5 is connected to the conductor core of one core wire. In other embodiments, the cable crimping part and the insulating crimping part of the shielding shell can also be connected front to back to completely cover the core wire part of the cable inside the shielding shell.

[0028] The terminal locking structure of this high-speed connector is a cover plate 2 integrally connected to the connector housing 1. A weak structure is provided at the connection point between the cover plate 2 and the connector housing 1 to allow the cover plate 2 to be swayably mounted on the connector housing 1. The cover plate 2 extends from back to front, with its rear end connected to the connector housing 1 and its front end away from the connection point with the connector housing 1. A hook 21 is provided at the front end of the cover plate 2, which tilts upwards before being pressed. The connector housing 1 has a clearance notch for the hook 21 to extend into the module mounting cavity 10 when the cover plate 2 is pressed. The clearance notch has a locking edge 13 for engaging with the hook 21 when it extends into the module mounting cavity 10 by pressing the cover plate 2. The locking edge 13 is the rear edge of the clearance notch. The hook 21 can extend into the module mounting cavity 10 through the clearance notch to engage with the terminal module. The hook 21 has a locking part for preventing the terminal module from retracting. A terminal locking structure is formed by the cover plate 2 of the connector housing 1, which facilitates installation and operation. In other embodiments, the terminal locking structure can also be a separate locking member independent of the connector housing, which is inserted into the connector housing from the side to prevent the terminal module from retracting.

[0029] The connector housing 1 has a snap-fit ​​edge 13 with a guide ramp for guiding the cover plate 2 through the clearance notch into the module mounting cavity 10. The guide ramp is inclined upwards to facilitate the snap-fit ​​engagement between the hook 21 and the snap-fit ​​edge 13, reducing the pressing force. In other embodiments, an arc surface can also be provided on the snap-fit ​​edge for guidance.

[0030] The front end of the cover plate 2 is provided with a bent structure. The bent structure has a rearward bent section to form a hook 21 that can engage with the locking edge 13. The part of the bent structure connected to the cantilever body of the cover plate 2 is inclined relative to the cantilever body of the cover plate 2 and has an inward transition slope. The transition slope slopes downward. When the hook 21 engages with the locking edge 13, the transition slope slopes face the guide slope slopes. The hook 21 is formed by the bent structure with the transition slope slope, which helps to improve the elastic deformation capacity at the hook 21 and saves space. In other embodiments, the part of the bent structure connected to the cantilever body of the cover plate can also be arranged perpendicular to the cantilever body of the cover plate.

[0031] The insulator 3 is provided with a relief groove 33 in the middle part of the front and rear direction of the mounting cavity of the two terminals 5 respectively. The terminal 5 is provided with a backstop mating groove 51 corresponding to the relief groove 33. The front end of the cover plate 2 has two hooks 21 spaced apart on the left and right. After the cover plate 2 is pressed, the ends of the two hooks 21 pass through the relief groove 33 on the insulator 3 and enter the backstop mating groove 51 of the corresponding terminal 5. The ends of the hooks 21 block the terminal 5. The part of the end of the hooks 21 that enters the backstop mating groove 51 constitutes a locking part to prevent the terminal module from moving backward.

[0032] The clearance groove 33 on the insulator 3, which avoids the locking part of the cover plate 2, is located in front of the crimping mating groove 32 for the crimping and fixing of the shielding shell 4. The shielding shell 4 only surrounds the rear part of the insulator 3 and does not surround the front part. In order to form shielded conduction, referring to Figures 5 and 6, the high-speed connector also includes a shielding spring 6. The connector housing 1 is provided with a spring mounting cavity 12 for the shielding spring 6 to be installed. The shielding spring 6 is provided with an external contact part 63 and an internal contact part 64. The spring mounting cavity 12 is provided with an external opening 15 for the external contact part 63 of the shielding spring 6 to be exposed to contact the shielding structure of the adapter connector 200 and an internal opening 16 for the internal contact part 64 of the shielding spring 6 to be exposed to contact the shielding shell 4 of the terminal module. The shielding structure of the adapter connector 200 is the adapter shielding structure 201. Two shielding springs 6 are provided, one on the left and one on the right, respectively, located on the left and right sides of the terminal module. The shielding springs 6 contact the adapter shielding structure 201 of the adapter connector 200 and the shielding shell 4 of the terminal module, respectively, thus forming shielded conductivity after the connectors are mated. This structure is simple and saves space occupied by the shielding structure. In other embodiments, shielding springs may not be provided separately; instead, the shielding shell may completely cover the insulator, and a contact claw may be provided at the front end of the shielding shell to form shielded conductivity when mated with the adapter connector.

[0033] The shielding spring 6 can provide floating deformation during the connector mating process. Furthermore, when the environment is harsh and the device is swaying, the elasticity of the shielding spring 6 allows the terminal module to have a sway margin while keeping the terminal 5 in a stable and fixed state. 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. 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 mounting cavity 10 are respectively provided with spring mounting cavities 12 for inserting two shielding springs 6. The spring mounting cavity 12 has a rearward opening for inserting the shielding springs 6 from the rear. The inner cavity wall of the spring mounting cavity 12 near the module mounting cavity 10 has an inner opening 16 that extends front to back and penetrates into the module mounting cavity 10. The outer cavity wall of the spring mounting cavity 12 away from the module mounting cavity 10 has an outer opening 15 that extends front to back and penetrates into the outer surface of the connector housing 1.

[0035] The shielding spring 6 includes a fixing part 62 fixed in the spring mounting cavity 12 and a spring part 61 extending from the fixing part 62 toward the head of the connector housing 1. The fixing part 62 is forcibly fixed in the spring mounting cavity 12, and the spring part 61 extends forward. The spring part 61 has two bends, an inward bend and an outward bend. The inward bend is located at the root of the spring part 61 connected to the fixing part 62, and the outward bend is located at the end of the spring part 61 away from the root. The inner side of the inward bend has an inward protruding bulge that forms an inward contact part 64, and the outer side of the outward bend has an outward protruding bulge that forms an outward contact part 63. The inner opening 16 of the spring mounting cavity 12 can avoid the inward contact part 64, and the outer opening 15 of the spring mounting cavity 12 can avoid the outward contact part 63, so that the inward contact part 64 and the outward contact part 63 can extend out of the spring mounting cavity 12.

[0036] Both the external contact portion 63 and the internal contact portion 64 are provided on the spring portion 61. The inwardly bent portion forms an inwardly bent structure near the root of the fixed portion 62 of the spring portion 61, and the internal contact portion 64 is provided at the inwardly bent structure. The outwardly bent portion forms an outwardly bent structure at the end of the spring portion 61 away from the fixed portion 62. The internal contact portion 64 is provided at the innermost bend of the inwardly bent structure, and the external contact portion 63 is provided at the outermost bend of the outwardly bent structure. When the terminal module is inserted into the module mounting cavity 10, the shielding shell 4 compresses the internal contact portion 64 of the shielding spring 6, causing the inwardly bent portion to deform outward, and the internal contact portion 64 forms elastic contact with the shielding shell 4. When the adapter connector 200 is mated, the external contact portion 63 is compressed by the adapter shielding structure 201, causing the outwardly bent portion to deform inward, and the external contact portion 63 forms elastic contact with the adapter shielding structure 201. The end edge of the spring portion 61 is bent inward, and the spring mounting cavity 12 has a space at the end edge of the spring portion 61 that communicates with the module mounting cavity 10. This allows the end of the spring portion 61 to deform inward and its edge to abut against the side of the shielding shell 4 when the adapter connector 200 is inserted, increasing the contact points and improving the reliability of shielding conduction. In other embodiments, the end edge of the spring portion may not contact the shielding shell. In other embodiments, the main body of the spring portion of the shielding spring may also be a flat, overhanging structure, with the inner contact portion and the outer contact portion formed by protrusions on the spring portion of the shielding spring.

[0037] The front end of the spring mounting cavity of the connector housing is also provided with a limiting stop 17. The end edge of the shielding spring extends into the inner side of the limiting 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 mounting cavity 10 is open from front to back. The front end of the terminal module is used to insert into the contact part of the adapter connector 200. The high-profile 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-back direction of the insulator 3. An inner baffle with a groove is provided in the module mounting cavity 10. When the terminal module is inserted into the module mounting cavity 10, the limiting protrusion 34 is inserted into the groove on the inner baffle to limit the forward position of the terminal module. An upwardly oriented protrusion 35 is provided on the insulator 3. An oriented mating groove 36 is provided on the inner wall of the module mounting cavity 10. The positioning protrusion 35 and the oriented mating groove 36 cooperate to prevent the terminal module from being inserted into the module mounting cavity 10. A waist-reducing structure 44 is provided in the middle of the shielding shell 4. The waist-reducing structure 44 is located at the position where the spacing between the two core wires changes. The radial dimension is reduced to strengthen the fixation of the two core wires of the cable 7 and improve the impedance matching effect, further improving the high-speed performance of the connector.

[0039] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-speed connector, comprising a connector housing (1) and a terminal module, the connector housing having a module mounting cavity (10) for inserting the terminal module, the terminal module comprising an insulator (3), terminals (5) mounted within the insulator, and a shielding shell (4) disposed outside the insulator, the connector housing (1) having a terminal locking structure for preventing the terminal module from retracting after being inserted into the module mounting cavity (10) by external force pressing, characterized in that, One of the terminal module and the inner wall of the module mounting cavity is provided with a limiting claw (41) and the other is provided with a limiting baffle (11). The limiting claw (41) is deformed by force during the process of the terminal module being installed into the module mounting cavity (10) and resets when the terminal module is installed in place and cooperates with the limiting baffle (11) to stop the terminal module from moving back before the terminal locking structure is pressed.

2. The high-speed connector according to claim 1, characterized in that, The shielding shell (4) includes an insulator crimping portion (42) for being wrapped around the insulator (3) by crimping, the limiting claw (41) is disposed on the insulator crimping portion (42) of the shielding shell (4), and the limiting baffle (11) is disposed on the inner wall of the module mounting cavity (10).

3. The high-speed connector according to claim 2, characterized in that, The insulator crimping part (42) includes two crimping wings arranged at intervals and opposite to each other. The two crimping wings are used to close and deform to crimp and fix on the insulator (3). The limiting claw (41) is arranged on the part of the insulator crimping part (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 inserted into the module mounting cavity (10) from the tail end of the connector housing (1). The inner wall of the module mounting cavity (10) is provided with a limiting groove. The groove wall of the limiting groove near the tail end of the connector housing (1) constitutes the limiting wall (11). The limiting claw (41) protrudes on the terminal module. When the terminal module is installed in the module mounting cavity (10), the limiting claw (41) passes over the limiting wall (11) and extends toward the tail end of the connector housing (1) to form a blocking engagement with the limiting 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 tail of the insulator (3). The high-speed connector also includes a shielding spring (6). The connector housing (1) is provided with a spring mounting 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 mounting 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 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 the shielding shell (4) of the terminal module.

6. The high-speed connector according to claim 5, characterized in that, The shielding spring (6) includes a fixing part (62) fixed in the spring mounting cavity (12) and a spring part (61) extending from the fixing part (62) toward the head of the connector housing (1). The external contact part (63) and the internal contact part (64) are both provided on the spring part (61). The root of the spring part (61) near the fixing part (62) is provided with an inward bending structure. The internal contact part (64) is provided at the inward bending structure. The spring part (61) away from the fixing part is provided with an inward bending structure. The end of the portion (62) is provided with an outward bending structure and the edge of the end bends toward the module mounting cavity (10). The outward bending structure is provided with the external contact portion (63) and the external contact portion protrudes outward from the external opening (15) so as to deform inward when the adapter connector (200) is inserted. The spring mounting cavity (12) is provided with a space at the end edge of the spring portion (61) that communicates with the module mounting cavity (10) so that when the end of the spring portion (61) is deformed inward, its edge abuts against the shielding shell (4).

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 the connector housing (1). The cover plate (2) is provided with a weak structure at the connection point with the connector housing (1) so that the cover plate (2) can be swayed on the connector housing (1). A hook (21) is provided at the end of the cover plate (2) away from the connection point with the connector housing (1). The connector housing (1) is provided with a clearance notch for the hook (21) to extend into the module mounting cavity (10). The clearance notch is provided with a snap-fit ​​edge (13) for forming a snap-fit ​​engagement with the hook (21) when the hook (21) is extended into the module mounting cavity (10) by pressing the cover plate (2). The hook (21) is provided with a locking part for preventing the terminal module from retracting.

8. The high-speed connector according to claim 7, characterized in that, The snap-fit ​​edge (13) is provided with a snap hook (21) for guiding the cover plate (2) through the clearance notch into the module mounting cavity (10) via a guide ramp.

9. The high-speed connector according to claim 8, characterized in that, The end of the cover plate (2) away from the connector housing (1) is provided with a bending structure, which forms the hook (21). The bending structure includes an inwardly arranged transition slope. When the hook (21) and the snap-fit ​​edge (13) form a snap-fit ​​engagement, the transition slope is opposite to the guide slope.

10. The high-speed connector according to claim 1, 2, or 3, characterized in that, The shielding shell (4) has an observation port for observing the core wire of the cable (7) between the part used to crimp and fix the cable (7) and the part used to crimp and fix the insulator (3).

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