A terminal module of a connector and the connector, a connector assembly
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA AVIATION OPTICAL ELECTRICAL TECH CO LTD
- Filing Date
- 2023-01-16
- Publication Date
- 2026-06-12
Smart Images
Figure CN115966960B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of conductive connection technology, and more specifically to a connector terminal module, connector, and connector assembly. Background Technology
[0002] In modern data communication transmission systems, transmission rates are getting higher and higher, and high-speed interconnection systems are widely used in communication networks and data exchange systems. As the core bridge of data communication, high-speed backplane connectors have huge market demand and increasingly fierce competition. The requirements for their product stability are getting higher and higher, and various structural forms of connectors have emerged on the market to meet SI performance (signal integrity performance) requirements and meet the increasingly fierce market competition.
[0003] For existing high-speed backplane connectors assembled from multiple terminal modules, the structure of the terminal modules is as follows: Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, this terminal module is the terminal module of the female connector 100, including terminals, shielding sheet 2, and insulator 1. The terminals are elongated wiring terminals. One end of the terminal has a fisheye structure 300 to form the fisheye end of the female connector, and the other end has a terminal bullet piece 301 to form the mating end of the female connector. The fisheye end is used to connect to the printed circuit board, and the mating end of the female connector 100 is used to connect to the male connector. The terminals include ground terminals and signal terminals. The signal terminals are arranged in pairs, and each pair of signal terminals forms a differential pair. Ground terminals are provided on both sides of each differential pair. The terminals are stamped and formed, and each terminal is integrally injection molded with the insulator. The insulator 1 has insulator locking holes 11, and the shielding sheet 2 has shielding sheet locking claws 22. The shielding sheet is fastened onto the insulator to lock. The claw extends into the slot to fix and contact the grounding terminal. The shielding plate has an engagement portion located at the mating end of the female connector. The engagement portion is located on one side of the end spring piece. Each engagement portion corresponds to the end spring piece of each grounding terminal. The end spring piece of the grounding terminal has a grounding terminal protrusion 3011 arched towards the engagement portion. The engagement portion of the shielding plate has a shielding plate protrusion 21 arched towards the end spring piece of the grounding terminal. The shielding plate protrusion is stamped and is strip-shaped, with both ends integrally connected to the shielding plate body. The shielding plate protrusion 21 is opposite to the grounding terminal protrusion 3011. The shielding plate protrusion constitutes the shielding plate contact portion, and the grounding terminal protrusion constitutes the grounding terminal contact portion. Both the shielding plate protrusion and the grounding terminal protrusion have convex surfaces for contacting the grounding contact of the male pin, and the convex surfaces of the two face each other. Figure 5As shown, the grounding contact of the male connector 200 is the male grounding pin 201. The male grounding pin 201 of the male connector 200 can be inserted into or pulled out of the mating end of the female connector 100 in a set direction. This set direction is also the insertion and removal direction of the mating end of the female connector. The male grounding pin 201 can be inserted into and contacted between the shielding protrusion 21 and the grounding terminal protrusion 3011 of the female connector 100 to achieve shielding conduction.
[0004] In this type of female connector, the shielding contact and the grounding terminal contact of the terminal module form contact and conduction on both sides of the male grounding pin of the male connector. In order to ensure reliable contact on both sides, the gap between the shielding contact and the grounding terminal contact is very small or even non-existent. When the male grounding pin is inserted, the male grounding pin interferes with both the shielding contact and the grounding terminal contact, causing deformation to achieve elastic contact. However, because the male grounding pin interferes with both the shielding contact and the grounding terminal contact when inserted, the tip of the male grounding pin will impact the shielding contact and the grounding terminal contact. During the insertion operation of the male connector and the female connector, the contacts can easily be damaged due to improper force, affecting the reliability of the insertion. Summary of the Invention
[0005] The present invention aims to provide a terminal module for a connector to solve the problem that the contacts of existing connectors are easily damaged during insertion, thus affecting the reliability of the insertion; the present invention also aims to provide a connector to solve the problem that the contacts of existing connectors are easily damaged during insertion, thus affecting the reliability of the insertion; the present invention further aims to provide a connector assembly to solve the problem that the contacts of existing connectors are easily damaged during insertion, thus affecting the reliability of the insertion.
[0006] The technical solution of the terminal module of the connector of the present invention is as follows:
[0007] A terminal module for a connector includes a grounding terminal and a shield. The grounding terminal has a grounding terminal contact portion located at the mating end of the connector, and the shield has a shield contact portion located at the mating end of the connector. Both the shield contact portion and the grounding terminal contact portion have contact surfaces for contacting a grounding contact of an adapter connector. The contact surfaces of the shield contact portion and the grounding terminal contact portion face the same direction.
[0008] Beneficial effects: By setting the contact surfaces of the shielding plate contact and the grounding terminal contact to face the same direction, the shielding plate contact and the grounding terminal contact are grounded and connected on the same side of the grounding contact of the adapter connector. The shielding plate contact and the grounding terminal contact interfere on one side of the grounding contact of the adapter connector, and the space on the other side is conducive to the deformation of the grounding contact of the adapter connector, which helps to reduce impact force, makes plugging easier, and is less likely to damage the contact due to excessive force, thus improving plugging reliability.
[0009] Furthermore, the grounding terminal contact and the shielding contact are spaced apart in the insertion / removal direction of the connector's mating end.
[0010] Beneficial effects: By spaced ground terminal contacts and shield contacts on the mating end of the connector, the ground contacts of the adapter connector can form spaced contact points along the mating path. The ground terminal contacts and shield contacts can form contact points at different positions along the longer mating path. This design of different contact points at the front and back can improve electromagnetic interference between differential pairs in the mating area and improve the transmission quality of high-speed differential signals.
[0011] Furthermore, the contact portion of the shielding sheet is positioned further back than the contact portion of the grounding terminal.
[0012] Beneficial effect: By placing the shielding contact part behind the grounding terminal contact part, when the grounding contact of the adapter connector is inserted, it first contacts the grounding terminal contact part and then contacts the shielding contact part, which helps to prioritize the insertion length of the grounding terminal.
[0013] Furthermore, the grounding terminal has a first grounding cantilever and a second grounding cantilever located at the mating end of the connector. Both the first grounding cantilever and the second grounding cantilever are provided with grounding terminal contact portions, and the shielding contact portion is located between the first grounding cantilever and the second grounding cantilever.
[0014] Beneficial effects: The shielding contact part can be arranged in the space along the width of the grounding terminal, and the shielding contact part can be accommodated in the space between the first grounding cantilever and the second grounding cantilever, resulting in a compact structure.
[0015] Furthermore, the distance between the grounding terminal contact and the shielding contact in the insertion / removal direction of the connector's mating end is 0.8-1.2 mm.
[0016] Furthermore, the shielding sheet includes a main sheet body and a shielding spring connected to the main sheet body. The shielding spring has a cantilever structure, and the contact part of the shielding sheet is located at the end of the shielding spring.
[0017] Beneficial effect: By setting a shielding spring, it can form an elastic contact with the grounding contact of the adapter connector, which is conducive to reliable contact.
[0018] Furthermore, the end of the shielding spring is provided with a widened portion, which constitutes the contact portion of the shielding sheet.
[0019] Beneficial effects: By setting the widened part to form the shielding contact part, the contact area between the shielding spring and the grounding contact of the adapter connector can be increased, which helps to reduce the characteristic impedance.
[0020] Furthermore, a through hole is provided at the junction of the shielding spring and the main body.
[0021] Beneficial effect: By setting through holes, the stress at the junction of the shielding spring and the main body can be released, thereby avoiding stress concentration at the root of the shielding spring when the contact of the adapter connector is inserted and the shielding spring is deformed.
[0022] Furthermore, the portion of the main body near the shielding spring is provided with a recessed groove, and the shielding spring is connected to the bottom of the recessed groove.
[0023] Beneficial effects: By setting a recessed groove and suspending the shielding spring at the bottom of the recessed groove, the height of the shielding spring root is reduced by the recessed groove. The shielding spring can be suspended at a smaller tilt angle to make contact with the grounding contact, avoiding excessive stress caused by excessive tilt angle, which could lead to pin failure.
[0024] Furthermore, the portion of the main body with a recessed groove has a main body contact surface facing the grounding terminal, and the main body contact surface is in contact with the grounding terminal.
[0025] Beneficial effect: By utilizing the recessed groove to contact the grounding terminal, a shielding contact point can be formed near the mating area, which helps to improve the shielding effect.
[0026] Furthermore, the bottom of the recessed groove is provided with a hot riveting hole. The terminal module includes an insulator, and a hot riveting post is provided on the insulator. The hot riveting post passes through the hot riveting hole and is used to hot rivet the shielding sheet to the insulator so that the contact surface of the main sheet is pressed into contact with the grounding terminal.
[0027] Beneficial effects: By hot-riveting the shielding sheet to the insulator, the structure is robust, and the contact surface of the main sheet can maintain reliable contact with the grounding terminal.
[0028] The technical solution of the connector of the present invention is as follows:
[0029] A connector includes a terminal module comprising a ground terminal and a shield. The ground terminal has a ground terminal contact portion located at the mating end of the connector, and the shield has a shield contact portion located at the mating end of the connector. Both the shield contact portion and the ground terminal contact portion have contact surfaces for contacting a ground contact of an adapter connector. The contact surfaces of the shield contact portion and the ground terminal contact portion face the same direction.
[0030] Beneficial effects: By setting the contact surfaces of the shielding plate contact and the grounding terminal contact to face the same direction, the shielding plate contact and the grounding terminal contact are grounded and connected on the same side of the grounding contact of the adapter connector. The shielding plate contact and the grounding terminal contact interfere on one side of the grounding contact of the adapter connector, and the space on the other side is conducive to the deformation of the grounding contact of the adapter connector, which helps to reduce impact force, makes plugging easier, and is less likely to damage the contact due to excessive force, thus improving plugging reliability.
[0031] Furthermore, the grounding terminal contact and the shielding contact are spaced apart in the insertion / removal direction of the connector's mating end.
[0032] Beneficial effects: By spaced ground terminal contacts and shield contacts on the mating end of the connector, the ground contacts of the adapter connector can form spaced contact points along the mating path. The ground terminal contacts and shield contacts can form contact points at different positions along the longer mating path. This design of different contact points at the front and back can improve electromagnetic interference between differential pairs in the mating area and improve the transmission quality of high-speed differential signals.
[0033] Furthermore, the contact portion of the shielding sheet is positioned further back than the contact portion of the grounding terminal.
[0034] Beneficial effect: By placing the shielding contact part behind the grounding terminal contact part, when the grounding contact of the adapter connector is inserted, it first contacts the grounding terminal contact part and then contacts the shielding contact part, which helps to prioritize the insertion length of the grounding terminal.
[0035] Furthermore, the grounding terminal has a first grounding cantilever and a second grounding cantilever located at the mating end of the connector. Both the first grounding cantilever and the second grounding cantilever are provided with grounding terminal contact portions, and the shielding contact portion is located between the first grounding cantilever and the second grounding cantilever.
[0036] Beneficial effects: The shielding contact part can be arranged in the space along the width of the grounding terminal, and the shielding contact part can be accommodated in the space between the first grounding cantilever and the second grounding cantilever, resulting in a compact structure.
[0037] Furthermore, the distance between the grounding terminal contact and the shielding contact in the insertion / removal direction of the connector's mating end is 0.8-1.2 mm.
[0038] Furthermore, the shielding sheet includes a main sheet body and a shielding spring connected to the main sheet body. The shielding spring has a cantilever structure, and the contact part of the shielding sheet is located at the end of the shielding spring.
[0039] Beneficial effect: By setting a shielding spring, it can form an elastic contact with the grounding contact of the adapter connector, which is conducive to reliable contact.
[0040] Furthermore, the end of the shielding spring is provided with a widened portion, which constitutes the contact portion of the shielding sheet.
[0041] Beneficial effects: By setting the widened part to form the shielding contact part, the contact area between the shielding spring and the grounding contact of the adapter connector can be increased, which helps to reduce the characteristic impedance.
[0042] Furthermore, a through hole is provided at the junction of the shielding spring and the main body.
[0043] Beneficial effect: By setting through holes, the stress at the junction of the shielding spring and the main body can be released, thereby avoiding stress concentration at the root of the shielding spring when the contact of the adapter connector is inserted and the shielding spring is deformed.
[0044] Furthermore, the portion of the main body near the shielding spring is provided with a recessed groove, and the shielding spring is connected to the bottom of the recessed groove.
[0045] Beneficial effects: By setting a recessed groove and suspending the shielding spring at the bottom of the recessed groove, the height of the shielding spring root is reduced by the recessed groove. The shielding spring can be suspended at a smaller tilt angle to make contact with the grounding contact, avoiding excessive stress caused by excessive tilt angle, which could lead to pin failure.
[0046] Furthermore, the portion of the main body with a recessed groove has a main body contact surface facing the grounding terminal, and the main body contact surface is in contact with the grounding terminal.
[0047] Beneficial effect: By utilizing the recessed groove to contact the grounding terminal, a shielding contact point can be formed near the mating area, which helps to improve the shielding effect.
[0048] Furthermore, the bottom of the recessed groove is provided with a hot riveting hole. The terminal module includes an insulator, and a hot riveting post is provided on the insulator. The hot riveting post passes through the hot riveting hole and is used to hot rivet the shielding sheet to the insulator so that the contact surface of the main sheet is pressed into contact with the grounding terminal.
[0049] Beneficial effects: By hot-riveting the shielding sheet to the insulator, the structure is robust, and the contact surface of the main sheet can maintain reliable contact with the grounding terminal.
[0050] The technical solution of the connector assembly of the present invention is as follows:
[0051] A connector assembly includes a male connector and a female connector. The male connector forms an adapter connector for the female connector. The male connector has a ground contact. The female connector includes a terminal module, which includes a ground terminal and a shield. The ground terminal has a ground terminal contact portion located at the mating end of the connector. The shield has a shield contact portion located at the mating end of the connector. Both the shield contact portion and the ground terminal contact portion have contact surfaces for contacting the ground contact of the adapter connector. The contact surfaces of the shield contact portion and the ground terminal contact portion face the same direction.
[0052] Beneficial effects: By setting the contact surfaces of the shielding plate contact and the grounding terminal contact to face the same direction, the shielding plate contact and the grounding terminal contact are grounded and connected on the same side of the grounding contact of the adapter connector. The shielding plate contact and the grounding terminal contact interfere on one side of the grounding contact of the adapter connector, and the space on the other side is conducive to the deformation of the grounding contact of the adapter connector, which helps to reduce impact force, makes plugging easier, and is less likely to damage the contact due to excessive force, thus improving plugging reliability.
[0053] Furthermore, the grounding terminal contact and the shielding contact are spaced apart in the insertion / removal direction of the connector's mating end.
[0054] Beneficial effects: By spaced ground terminal contacts and shield contacts on the mating end of the connector, the ground contacts of the adapter connector can form spaced contact points along the mating path. The ground terminal contacts and shield contacts can form contact points at different positions along the longer mating path. This design of different contact points at the front and back can improve electromagnetic interference between differential pairs in the mating area and improve the transmission quality of high-speed differential signals.
[0055] Furthermore, the contact portion of the shielding sheet is positioned further back than the contact portion of the grounding terminal.
[0056] Beneficial effect: By placing the shielding contact part behind the grounding terminal contact part, when the grounding contact of the adapter connector is inserted, it first contacts the grounding terminal contact part and then contacts the shielding contact part, which helps to prioritize the insertion length of the grounding terminal.
[0057] Furthermore, the grounding terminal has a first grounding cantilever and a second grounding cantilever located at the mating end of the connector. Both the first grounding cantilever and the second grounding cantilever are provided with grounding terminal contact portions, and the shielding contact portion is located between the first grounding cantilever and the second grounding cantilever.
[0058] Beneficial effects: The shielding contact part can be arranged in the space along the width of the grounding terminal, and the shielding contact part can be accommodated in the space between the first grounding cantilever and the second grounding cantilever, resulting in a compact structure.
[0059] Furthermore, the distance between the grounding terminal contact and the shielding contact in the insertion / removal direction of the connector's mating end is 0.8-1.2 mm.
[0060] Furthermore, the shielding sheet includes a main sheet body and a shielding spring connected to the main sheet body. The shielding spring has a cantilever structure, and the contact part of the shielding sheet is located at the end of the shielding spring.
[0061] Beneficial effect: By setting a shielding spring, it can form an elastic contact with the grounding contact of the adapter connector, which is conducive to reliable contact.
[0062] Furthermore, the end of the shielding spring is provided with a widened portion, which constitutes the contact portion of the shielding sheet.
[0063] Beneficial effects: By setting the widened part to form the shielding contact part, the contact area between the shielding spring and the grounding contact of the adapter connector can be increased, which helps to reduce the characteristic impedance.
[0064] Furthermore, a through hole is provided at the junction of the shielding spring and the main body.
[0065] Beneficial effect: By setting through holes, the stress at the junction of the shielding spring and the main body can be released, thereby avoiding stress concentration at the root of the shielding spring when the contact of the adapter connector is inserted and the shielding spring is deformed.
[0066] Furthermore, the portion of the main body near the shielding spring is provided with a recessed groove, and the shielding spring is connected to the bottom of the recessed groove.
[0067] Beneficial effects: By setting a recessed groove and suspending the shielding spring at the bottom of the recessed groove, the height of the shielding spring root is reduced by the recessed groove. The shielding spring can be suspended at a smaller tilt angle to make contact with the grounding contact, avoiding excessive stress caused by excessive tilt angle, which could lead to pin failure.
[0068] Furthermore, the portion of the main body with a recessed groove has a main body contact surface facing the grounding terminal, and the main body contact surface is in contact with the grounding terminal.
[0069] Beneficial effect: By utilizing the recessed groove to contact the grounding terminal, a shielding contact point can be formed near the mating area, which helps to improve the shielding effect.
[0070] Furthermore, the bottom of the recessed groove is provided with a hot riveting hole. The terminal module includes an insulator, and a hot riveting post is provided on the insulator. The hot riveting post passes through the hot riveting hole and is used to hot rivet the shielding sheet to the insulator so that the contact surface of the main sheet is pressed into contact with the grounding terminal.
[0071] Beneficial effects: By hot-riveting the shielding sheet to the insulator, the structure is robust, and the contact surface of the main sheet can maintain reliable contact with the grounding terminal. Attached Figure Description
[0072] Figure 1 This is a schematic diagram of the structure of a terminal module in the prior art;
[0073] Figure 2 for Figure 1 A schematic diagram of the rear structure;
[0074] Figure 3 for Figure 1 Side view;
[0075] Figure 4 for Figure 1 A schematic diagram of the shielding sheet structure;
[0076] Figure 5 This is a schematic diagram of the mating parts of a male connector and a female connector in the prior art;
[0077] Figure 6 This is a structural schematic diagram of the connector assembly of the present invention (in which the insulating shell, positioning plate, fixing piece and terminal module of the female connector are in a separate state);
[0078] Figure 7 for Figure 6 A schematic diagram of the female connector structure;
[0079] Figure 8 for Figure 6 The front view;
[0080] Figure 9 for Figure 8 A schematic diagram of the interlocking region in the diagram;
[0081] Figure 10 for Figure 9 A cross-sectional schematic diagram;
[0082] Figure 11 for Figure 7 A schematic diagram of the terminal module in the diagram;
[0083] Figure 12 for Figure 11 A schematic diagram of the rear structure;
[0084] Figure 13 for Figure 11 A side view of the shielding sheet separated from the insulator;
[0085] Figure 14 for Figure 11 A first-view structural diagram of the terminals in the diagram;
[0086] Figure 15 for Figure 11 A second-view structural diagram of the terminals in the middle.
[0087] Figure 16 for Figure 11 A first-view structural schematic diagram of the shielding sheet in the middle;
[0088] Figure 17 for Figure 11 Second-view structural diagram of the shielding sheet
[0089] Figure 18 for Figure 16 A partial structural diagram of the shielding spring in the middle;
[0090] Figure 19 for Figure 11 A schematic diagram of the cross-section at the root of the shielding spring;
[0091] Figure 20 for Figure 19 A partial structural diagram of the contact point between the recessed part of the shielding sheet and the grounding terminal.
[0092] In the diagram: 100, Female connector; 101, Insulating shell; 102, Fixing plate; 103, Positioning plate; 104, Terminal module; 200, Male connector; 201, Male grounding pin; 1, Insulator; 11, Insulator locking hole; 12, Claw clearance hole; 13, Hot riveting post; 2, Shielding plate; 20, Shielding spring; 21, Shielding plate protrusion; 22, Shielding plate claw; 23, Bending section; 231, Transition section; 232, Connecting section 24. Recessed groove; 25. Shielding plate clip hole; 26. First hot riveting hole; 27. Second hot riveting hole; 28. Through hole; 29. Main body contact surface; 3. Terminal; 31. Signal terminal; 311. Signal terminal bullet piece; 32. Grounding terminal; 321. Grounding terminal bullet piece; 322. Engaging hole; 323. Terminal claw; 324. Hot riveting post clearance hole; 300. Fisheye structure; 301. Terminal bullet piece; 3011. Grounding terminal protrusion. Detailed Implementation
[0093] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, not all embodiments. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0094] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.
[0095] It should be noted that relational terms such as "first" and "second" that may appear in the specific embodiments of the present invention are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the possible phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0096] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0097] In the description of this invention, unless otherwise explicitly specified and limited, the term "provided with" should be interpreted broadly. For example, the object "provided with" can be a part of the body, or it can be separately arranged from the body and connected to the body. This connection can be a detachable connection or a non-detachable connection. Those skilled in the art can understand the specific meaning of the above terms in this invention through specific circumstances.
[0098] The present invention will be further described in detail below with reference to embodiments.
[0099] Embodiment 1 of the connector assembly of the present invention:
[0100] like Figure 6 , Figure 7 As shown, the connector assembly includes a male connector 200 and a female connector 100. The male connector 200 forms a connector adapted to the female connector 100. The female connector 100 has a mating end for mating with the male connector 200 and a fisheye end for connecting to the printed circuit board. The direction in which the male connector 200 is inserted and removed relative to the female connector 100 is the insertion and removal direction of the mating end of the female connector 100. The female connector 100 includes several terminal modules 104 arranged side by side. The part of each terminal module 104 at the mating end is mounted on the insulating shell 101, and the part away from the mating end is fixed together by a fixing piece 102. The fixing piece 102 is provided with a snap-fit hole to snap-fit with the snap-fit protrusion on the terminal module 104. The fisheye end of the female connector 100 is arranged perpendicular to the mating end. A positioning plate 103 is provided at the fisheye end, and the part of each terminal module 104 at the fisheye end is mounted on the positioning plate 103.
[0101] like Figure 8 , Figure 9 , Figure 10 , Figure 11 As shown, the terminal module 104 of the female connector 100 includes an insulator 1, a terminal 3, and a shielding plate 2. The terminal 3 and the insulator 1 are integrally formed by injection molding. The shielding plate 2 is snapped onto one side of the insulator 1 and fixed to the insulator 1. The male connector 200 has a male contact inside its housing. The male contact is a pin, which includes a signal pin and a ground pin. One end of the pin has a fisheye portion, and the other end is used to insert into the female connector 100 to make corresponding contact with the terminal 3 of the female connector 100.
[0102] like Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 , Figure 15 , Figure 16 , Figure 17 , Figure 18 , Figure 19 , Figure 20As shown, terminal 3 includes signal terminal 31 and ground terminal 32. Terminals 3 are arranged side by side. Signal terminals 31 are arranged in pairs to form differential pairs. Each differential pair has a ground terminal 32 on both sides. Terminal 3 is a wiring terminal and is a strip-shaped sheet that bends and extends along its length. One end of signal terminal 31 and one end of ground terminal 32 are provided with a fisheye structure 300. The other end of signal terminal 31 is provided with a signal contact spring, and the other end of ground terminal 32 is provided with a grounding bullet 321. The end of signal terminal 31 and ground terminal 32 with the fisheye structure 300 is used to form the fisheye end of female connector 100. The signal contact spring and the grounding bullet 321 are located at the mating end of female connector 100 for corresponding contact with the mating pin of male connector 200.
[0103] Each grounding terminal 32 has two outermost grounding terminals located in the terminal arrangement direction, and an inner grounding terminal located between the two outermost grounding terminals. A grounding contact spring 321 is provided on each of the two outermost grounding terminals. The portion of each inner grounding terminal and each signal terminal 31 at the mating end of the female connector 100 has a forked structure, so that two spaced-apart grounding contact springs 321 are formed on each inner grounding terminal 32, and two spaced-apart signal contact springs 311 are formed on each signal terminal 31. Both the signal contact springs and the grounding contact springs 321 have cantilever structures. The grounding contact spring 321 has a root near the body of the grounding terminal 32 and an end away from the body of the grounding terminal 32. The signal contact spring 311 has a root near the body of the signal terminal 31 and an end away from the body of the signal terminal 31. The distance between the roots of the two grounding contact springs 321 of the same grounding terminal 32 is greater than the distance between their ends; similarly, the distance between the roots of the two signal contact springs 311 of the same signal terminal 31 is greater than the distance between their ends. The ends of the signal contact spring and the grounding bullet 321 arch towards the side opposite to the shielding plate 2 to form a protrusion at the end. The protrusion has a slope opposite to the root of the spring to facilitate the insertion of the corresponding male connector 200 pin into place. The protrusion on the grounding bullet 321 is the grounding terminal protrusion 3011.
[0104] The inner grounding terminal 32 has protruding terminal claws 323. The terminal claws 323 on the inner grounding terminal 32 are spaced apart along their extension direction. The terminal claws 323 are formed by cutting and bending the grounding terminal sheet. The two outermost grounding terminals 32 have engagement holes 322. The engagement holes 322 on the outermost grounding terminals 32 are spaced apart along the terminal's routing direction. The engagement holes 322 are strip-shaped holes with protrusions on their inner walls. The inner grounding terminal also has fixing holes to allow a portion of the plastic material to enter the fixing holes during injection molding with the insulator, improving the bonding strength.
[0105] The shielding sheet 2 includes a main body and a shielding spring 20 connected to the main body. The main body has shielding sheet locking holes 25, the distribution of which corresponds to the terminal claws 323 on the grounding terminal 32. When the shielding sheet 2 is fastened onto the insulator 1, the terminal claws 323 engage with the shielding sheet locking holes 25 to achieve fixation and conductive contact. Shielding sheet claws 22 are located on the edge of the shielding sheet 2 at positions corresponding to the outermost grounding terminal 32. The shielding sheet claws 22 are bent relative to the main body towards the insulator 1, thus providing insulation. The body 1 is provided with a claw clearance hole 12, which exposes the part of the outermost grounding terminal 32 with the engagement hole 322. When the shielding sheet 2 is fastened to the insulator 1, the shielding sheet claw 22 is engaged in the engagement hole 322 to achieve fixation and conductive contact. The shielding sheet claw 22 and the claw clearance hole 12 are spaced apart. After the shielding sheet claw 22 is forcibly installed into the engagement hole 322, the protrusion on the inner wall of the engagement hole 322 will cause the shielding sheet claw 22 to bend and deform, ensuring reliable contact. For the installation of the shielding plate 2 on the insulator 1, the terminal claws 323 are provided on the inner grounding terminal 32, while the shielding plate 2 has a shielding plate locking hole 25. This reduces the scraping between the rigid shielding plate 2 and the plastic insulator 1 during assembly, reducing the generation of plastic debris. The shielding plate locking hole 25 allows for easy observation of the engagement status of the terminal claws 323, facilitating alignment and preventing misalignment of the claws and locking holes that could lead to assembly failure. Furthermore, it reduces the area of the notch on the shielding plate 2, improving the shielding effect. The shielding spring forms an elastic contact with the male grounding pin, ensuring reliable contact. It also forms a grounding contact with the male grounding pin on the same side as the grounding spring. The grounding spring and the shielding spring can elastically deform in one direction, reducing the space occupied.
[0106] The snap-fit connection between the shielding plate 2 and the grounding terminal 32 forms a snap-fit point. In order to meet the SI performance and mechanical requirements, snap-fit points must be set near the fisheye end and the mating end, and snap-fit points must be set every 2-5mm on each bending section of the grounding terminal 32.
[0107] The main body of the shielding sheet 2 is also provided with a first hot riveting hole 26. After the terminal 3 and the insulator 1 are formed together, the insulator 1 is also formed with a hot riveting post 13 corresponding to the first hot riveting hole 26 on the shielding sheet 2. When the shielding sheet 2 is fastened on the insulator 1, the hot riveting post 13 passes through the first hot riveting hole 26, and then the hot riveting post 13 is fixed to the shielding sheet 2 by hot riveting. Numerous hot riveting points combine the shielding sheet 2 and the insulator 1 into a whole. The shielding sheet 2 plays a supporting role for the insulator 1 and improves the strength of the terminal module 104.
[0108] The main body of the shielding sheet 2 includes a main body and a bent portion 23 near the mating end of the female connector 100. The bent portion 23 has a transition section 231 that bends away from the insulator 1 and a connecting section 232 opposite to the insulator 1. The transition section 231 serves as a transition connection between the main body and the connecting section 232. The connecting section 232 is provided with a recessed groove 24, and the position of each recessed groove 24 corresponds to the position of the grounding terminal 32. The recessed groove 24 is recessed towards the grounding terminal 32. The recessed groove 24 has a slot facing away from the insulator 1 and a side opening facing away from the transition section 31. The shielding spring 20 is connected to the side opening.
[0109] The shielding spring 20 has a cantilever structure. The shielding spring 20 has a root that connects to the bottom wall of the recessed groove 24 and an end that is away from the main body. The end of the shielding spring 20 arches towards the grounding terminal 32 to form a shielding protrusion 21 at the end. The shielding protrusion 21 and the grounding terminal protrusion 3011 arch towards the same side so that they can contact the male grounding pin 201 on the same side. The shielding protrusion 21 has two beveled sides in the insertion / removal direction of the female connector 100. The beveled side away from the root of the shielding spring 20 facilitates the insertion of the corresponding male grounding pin 201 into place. The beveled side near the root of the shielding spring 20 causes the shielding spring 20 to extend obliquely between the two grounding springs 321 of the same grounding terminal 32 relative to the bottom wall of the recessed groove 24, so that the shielding protrusion 21 and the grounding terminal protrusion 3011 are aligned in the terminal arrangement direction, ensuring that the male grounding pin 201 makes contact with both the shielding protrusion 21 and the grounding terminal protrusion 3011. The shielding protrusion 21 constitutes the shielding contact portion, and the grounding terminal protrusion 3011 constitutes the grounding terminal contact portion. The surfaces of the shielding protrusion 21 and the grounding terminal protrusion 3011 facing the male grounding pin 201 constitute the contact surface for contacting the grounding contact of the male connector 200. The shielding spring 20, together with the signal end spring 311 and the grounding end spring 321, forms the mating end of the female connector 100. By setting a recessed groove, the shielding spring 20 is suspended based on the bottom of the recessed groove. In this way, the height of the root of the shielding spring 20 is reduced by using the recessed groove. The shielding spring 20 can be suspended at a smaller tilt angle to a position that can contact the male grounding pin 201, avoiding excessive stress caused by an excessive tilt angle, which could lead to pin failure.
[0110] Two grounding bullet pieces 321 on the same inner grounding terminal 32 constitute the first grounding cantilever and the second grounding cantilever of the grounding terminal 32 located at the mating end of the female connector 100. There is a large gap between the portions of the first grounding cantilever and the second grounding cantilever near the root. The end of the shielding bullet piece 20 extends into this gap, so that the grounding terminal contact portion at the end of the grounding bullet piece 321 is staggered relative to the shielding contact portion at the end of the shielding piece 2. The grounding terminal contact portion and the shielding contact portion are spaced back and forth in the insertion and removal direction of the mating end of the female connector 100, and the spacing distance is 0.8-1.2mm. The grounding terminal contact portion is in front and the shielding contact portion is behind. Each grounding terminal contact portion is aligned along the arrangement direction of the terminal 3, and each shielding contact portion is aligned along the arrangement direction of the terminal 3. Each male grounding pin 201 forms two contact positions with the corresponding shielding contact portion and grounding terminal contact portion in the insertion and removal direction of the female connector 100. When the male grounding pin 201 is inserted, it will first contact the grounding terminal contact part and then the shielding plate contact part, which helps to prioritize the insertion length of the grounding terminal 32.
[0111] The outermost shielding spring corresponding to the outermost grounding bullet piece 321 is the outermost shielding spring. The width of the outermost shielding spring is smaller than the width of the shielding spring corresponding to the inner grounding bullet piece 321. The outermost shielding spring is located outside the outermost grounding bullet piece 321 along the arrangement direction of the terminals 3. The shielding contact portion of the outermost shielding spring 20 and the grounding terminal contact portion of the outermost grounding bullet piece 321 are spaced apart along the insertion and removal direction of the mating end of the female connector 100, so as to form two contact points at different positions with the corresponding male grounding pin 201. In other embodiments, the outermost shielding spring 20 may be omitted.
[0112] The connecting section 232 on the main body of the shielding sheet 2 has a main body contact surface 29 facing the grounding terminal 32. The main body contact surface 29 is the side of the bottom wall of the recessed groove 24 facing away from the groove opening. The bottom wall of the recessed groove 24 contacts the grounding terminal 32, thereby forming a shielding contact point at the insertion area, which is beneficial to improving the shielding effect. A through hole 28 is provided at the junction of the shielding spring 20 and the main body. The through hole 28 is an elongated hole. The root of the shielding spring 20 gradually widens in the direction towards the main body. Through the through hole 28 and the gradual change in the width of the root of the shielding spring 20, the stress at the junction of the shielding spring 20 and the main body can be released, thereby avoiding stress concentration at the root of the shielding spring 20 when the contact of the adapter connector is inserted and the shielding spring 20 is deformed. The bottom wall of the recessed groove 24 is provided with a second hot riveting hole 27, which is located near the through hole 28. The grounding terminal 32 is provided with a hot riveting post avoidance hole 324 corresponding to the second hot riveting hole 27. The insulator 1 is provided with a hot riveting post 13 corresponding to the second hot riveting hole 27. After the grounding terminal 32 and the insulator 1 are integrally formed, the hot riveting post 13 formed on the insulator 1 is avoided by the hot riveting post avoidance hole 324, so that when the shielding sheet 2 is fastened on the insulator 1, the hot riveting post 13 passes through the hot riveting hole and makes the main body contact surface 29 of the shielding sheet 2 contact the grounding terminal 32. The hot riveting post 13 is used to hot rivet the shielding sheet 2 and the insulator 1 so that the main body contact surface 29 is pressed into contact with the grounding terminal 32 to form a firm return ground. The position of the shielding protrusion 21 at the end of the shielding spring 20 is widened to facilitate reliable contact with the male grounding pin 201, increase the contact area with the male grounding pin 201, and reduce the characteristic impedance.
[0113] In use, the male connector 200 and the female connector 100 are mated together. The male grounding pin 201 of the male connector 200 is inserted into one side of the shielding plate 2 spring and the grounding bullet plate 321, and then makes elastic pressing contact with the grounding terminal contact on the grounding bullet plate 321 and the shielding plate contact on the shielding plate 2 spring in sequence. By setting the grounding terminal contact and the shielding plate contact at intervals in the insertion and removal direction of the mating end of the female connector 100, it is possible to form various contact points with the grounding contact of the male connector 200 on the mating path. The grounding terminal contact and the shielding plate contact can form contact points at different positions on the longer mating path. This multi-contact point design can improve the electromagnetic interference between differential pairs in the mating area, improve the transmission quality of high-speed differential signals, and meet SI performance requirements. By setting the contact surfaces of the shielding contact and the grounding terminal contact to face the same direction, the shielding contact and the grounding terminal contact are grounded and connected on the same side of the grounding contact of the adapter connector. The shielding contact and the grounding terminal contact interfere on one side of the grounding contact of the adapter connector, and the space on the other side is conducive to the deformation of the grounding contact of the adapter connector, which helps to reduce impact force, making the insertion easier and less likely to damage the contact due to excessive force, thus improving the insertion reliability.
[0114] Embodiment 2 of the connector assembly of the present invention:
[0115] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the shielding contact portion is positioned further back than the grounding terminal contact portion. In this embodiment, the shielding contact portion is positioned further forward than the grounding terminal contact portion.
[0116] Embodiment 3 of the connector assembly of the present invention:
[0117] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the grounding terminal contact and the shielding contact are spaced apart in the insertion / removal direction of the connector's mating end. In this embodiment, the grounding terminal contact and the shielding contact are at the same position in the insertion / removal direction of the connector's mating end, but spaced apart perpendicular to the insertion / removal direction.
[0118] Embodiment 4 of the connector assembly of the present invention:
[0119] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the bottom of the recessed groove is provided with a second hot riveting hole, and the insulator is provided with a hot riveting post corresponding to the second hot riveting hole to ensure that the contact surface of the main body is pressed tightly against the grounding terminal after the shielding sheet and the insulator are hot riveted together. In this embodiment, the bottom wall of the recessed groove is welded to the grounding terminal.
[0120] Embodiment 5 of the connector assembly of the present invention:
[0121] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, each grounding terminal corresponds to a shielding spring, and the shielding spring has a shielding contact portion. The grounding terminal contact portion of the grounding terminal and the shielding contact portion on the shielding plate form two contact points with the male grounding pin along the insertion / removal direction of the female connector. In this embodiment, the shielding plate has various forked portions corresponding to each grounding terminal. Each forked portion includes two branch springs, and each branch spring has a shielding contact portion. The two branch springs are of different lengths so that the shielding contact portions on the two branch springs are spaced apart along the insertion / removal direction of the female connector. The shielding contact portions on the two branch springs and the grounding terminal contact portion of the grounding terminal can form three contact points with the male grounding pin along the insertion / removal direction of the female connector.
[0122] Embodiments of the connector of the present invention:
[0123] The connector in this embodiment is the same as the female connector described in any of the embodiments 1-5 of the connector assembly described above, and will not be repeated here.
[0124] An embodiment of the terminal module of the connector of the present invention:
[0125] The terminal module of the connector in this embodiment is the same as the terminal module of the female connector described in any of the embodiments 1-5 of the connector assembly described above, and will not be repeated here.
[0126] 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 terminal module for a connector, comprising a grounding terminal and a shielding plate, wherein the grounding terminal has a grounding bullet located at the mating end of the connector, the grounding bullet having a grounding terminal contact portion at its end, and the shielding plate has a shielding plate contact portion located at the mating end of the connector, both the shielding plate contact portion and the grounding terminal contact portion having contact surfaces for contacting a grounding contact element of a mating connector, characterized in that, The contact surfaces of the shielding plate and the grounding terminal have the same orientation. The shielding plate includes a main plate body and a shielding spring connected to the main plate body. The shielding spring has a cantilever structure. The shielding plate contact part is located at the end of the shielding spring. The part of the main plate body near the shielding spring has a recessed groove that sinks towards the grounding terminal. The shielding spring is connected to the bottom wall of the recessed groove and is connected to the side opening of the recessed groove facing the insertion end. The bottom wall of the recessed groove is fixed to the grounding terminal, and the side of the recessed groove facing away from the groove opening is the contact surface of the main plate body facing the grounding terminal. The contact surface of the main plate body is in contact with the grounding terminal.
2. The terminal module of the connector according to claim 1, characterized in that, The grounding terminal contact and the shielding contact are spaced apart in the insertion / removal direction of the connector's mating end.
3. The terminal module of the connector according to claim 2, characterized in that, The contact portion of the shielding plate is positioned further back than the contact portion of the grounding terminal.
4. The terminal module of the connector according to claim 3, characterized in that, The grounding terminal has a first grounding cantilever and a second grounding cantilever located at the mating end of the connector. Both the first grounding cantilever and the second grounding cantilever are provided with grounding terminal contact portions, and the shielding contact portion is located between the first grounding cantilever and the second grounding cantilever.
5. The terminal module of the connector according to claim 2, characterized in that, The distance between the grounding terminal contact and the shielding contact in the insertion / removal direction of the connector is 0.8-1.2 mm.
6. The terminal module of the connector according to any one of claims 1-5, characterized in that, The end of the shielding spring is widened, and the widened part constitutes the contact part of the shielding sheet.
7. The terminal module of the connector according to any one of claims 1-5, characterized in that, A through hole is provided at the junction of the shielding spring and the main body.
8. The terminal module of the connector according to any one of claims 1-5, characterized in that, The bottom of the recessed groove is provided with a hot riveting hole. The terminal module includes an insulator and a hot riveting post is provided on the insulator. The hot riveting post passes through the hot riveting hole and is used to hot rivet the shield to the insulator so that the contact surface of the main plate is pressed into contact with the grounding terminal.
9. A connector comprising a terminal module, characterized in that, The terminal module is the terminal module of the connector described in any one of claims 1-8.
10. A connector assembly comprising a male connector and a female connector, the male connector constituting an adapter connector for the female connector, the male connector having a grounding contact, and the female connector including a terminal module, characterized in that, The terminal module is the terminal module of the connector described in any one of claims 1-8.