Slot connector

Abstract

The utility model discloses a slot connector, including insulating shell, terminal module, plug piece and shielding piece, the insulating shell is equipped with mutually communicated slot and mounting groove, terminal module includes signal terminal and plastic seat on signal terminal injection molding, the plastic seat is equipped with first assembly portion, the plug piece is equipped with first cooperation portion, the first cooperation portion is equipped with second assembly portion, and the shielding piece is equipped with second cooperation portion. The first assembling part is matched with the first matching part in a buckled mode so that the plug piece and the plastic base can be mutually assembled and fixed, one of the plug piece and the plastic base is provided with a positioning column, the shielding piece is clamped between the plastic base and the plug piece and comprises a plate body, a plurality of extending parts and a plurality of inclined parts, and the plate body is provided with a via hole and a fixing hole. The through hole is used for the first assembling part or the first matching part to pass through, and the positioning column is used for being tightly matched with the fixing hole to assemble and position the shielding piece, so that the plurality of extending parts can be aligned with the holding parts of the shielding multiple pairs of signal terminals, the plurality of inclined parts can be aligned with the elastic parts of the shielding multiple pairs of signal terminals, and the integrity of signal transmission can be improved.

Description

[Technical Field]

[0001] This utility model relates to a slot connector, and more particularly to a slot connector that is easy to assemble and has good signal integrity in high-speed signal transmission. [Background Technology]

[0002] An existing slot connector includes an insulating housing, two terminal modules, an intermediate plug, and two grounding components. Each terminal module includes a plastic part and multiple conductive terminals injection-molded into the plastic part. The conductive terminals include multiple pairs of signal terminals and multiple grounding terminals. The plastic part has insert pins for embedding and fixing into the plug. A shield is positioned by being clamped between the plastic part and the plug. The grounding components include a plate and multiple shielding portions protruding from the upper end of the plate. The plate has through holes fitted onto the insert pins, with a loose fit between the through holes and the insert pins. Each shielding portion... When a pair of signal terminals are to be shielded, the grounding component is first fitted onto the insert post of the plastic base during assembly, and then assembled with the terminal module to the plug. This allows the grounding component to be clamped and fixed by the plastic component and the plug. However, since the perforation and the insert post are loosely fitted, the shielding part is prone to shifting during assembly and cannot be aligned to shield the corresponding pair of signal terminals. In other words, the position of the grounding component needs to be readjusted, making assembly more troublesome. Furthermore, the offset of the shielding part will affect the crosstalk between the two rows of terminals, thereby affecting the signal integrity in high-speed signal transmission.

[0003] Therefore, it is necessary to provide a slot connector that is easy to assemble and has good signal integrity to overcome the above-mentioned defects. [Utility Model Content]

[0004] To address the problems in the background technology, the purpose of this utility model is to provide a slot connector that is easy to assemble and has good signal integrity.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a slot connector for inserting a mating element, comprising: an insulating shell including a mating surface and a mounting surface, the mating surface having a recessed slot for inserting the mating element, and the mounting surface having a recessed mounting groove communicating with the slot; at least one terminal module, mounted in the mounting groove and entering the slot, the terminal module including a terminal block and a plastic base injection molded on the terminal block, the terminal block being located on at least one side of the slot in the front-back direction, the terminal block including multiple pairs of signal terminals and multiple ground terminals arranged in the left-right direction, each ground terminal and each signal terminal having a contact portion, an elastic portion, a retaining portion and a tail portion, the contact portion protruding into the slot for mating with the mating element, the elastic portion extending obliquely and connected between the retaining portion and the contact portion, the retaining portion being embedded and fixed in the plastic base, the tail portion extending from the lower end of the retaining portion and extending out of the mounting groove, the plastic base being located in the mounting groove and A first assembly part is provided on the side near the slot; a plug is provided in the mounting slot, and a first mating part is provided on the side of the plug facing the plastic base. The first assembly part and the first mating part are interlocked to assemble and fix the plug and the plastic base together. A positioning post is protruding on one of the opposing sides of the plug and the plastic base; a shield is sandwiched between the plastic base and the plug. The shield includes a plate, multiple extensions and multiple inclined parts. The multiple extensions extend upward from the plate and are spaced apart in the left and right direction. Each inclined part extends obliquely from the top of the corresponding extension and extends beyond the top surface of the plastic base. The plate has a through hole for the first assembly part or the first mating part to pass through and a fixing hole for fastening with the positioning post. The positioning post and the fixing hole are fastened to assemble and position the shield, so that the multiple extensions can be aligned with the holding part that shields multiple pairs of signal terminals, and the multiple inclined parts can be aligned with the elastic part that shields multiple pairs of signal terminals.

[0006] Furthermore, the plug includes an insulating member and a conductive member fitted onto the insulating member. The insulating member includes a first base and a plurality of insulating ribs extending upward from the first base. The conductive member has a second base and a plurality of conductive ribs extending upward from the second base. The second base is fitted onto the first base. The plurality of conductive ribs and the plurality of insulating ribs are arranged alternately in the left-right direction, and the conductive ribs protrude from the insulating ribs in the front-back direction. Each insulating rib corresponds to an extension in the front-back direction, and the front and rear sides of the extension are respectively clamped and fixed by the insulating ribs and the plastic seat. Each conductive rib passes through the gap between two adjacent extensions to electrically couple with the grounding terminal.

[0007] Furthermore, each conductive rib includes a connecting portion and a protrusion extending along the extension direction of the elastic portion. A gap is provided between the protrusion and the elastic portion. The connecting portion is connected to the second base and alternately arranged with the extension portion. Each connecting portion is electrically coupled to the adjacent extension portion. The protrusion and the inclined portion are alternately arranged in the left-right direction. Each protrusion extends upward beyond the plastic base. The protrusion is electrically coupled to the elastic portion of the grounding terminal.

[0008] Furthermore, the conductive rib also includes an abutting portion extending from the connecting portion toward the side near the grounding terminal. The abutting portion has an abutting surface, and the distance between the abutting surface and the adjacent signal terminal in the left-right direction is greater than the distance between the connecting portion and the adjacent signal terminal in the left-right direction. The side of the plastic base near the slot has multiple recesses corresponding to multiple grounding terminals. Each opening exposes the retaining portion of the corresponding grounding terminal. The abutting portion extends into the opening and abuts the abutting surface with the retaining portion of the grounding terminal.

[0009] Furthermore, the abutment portion is provided to gradually retract inward from the connecting portion in the front-to-back direction toward the grounding terminal, and the shape of the opening is adapted to the shape of the abutment portion, and the opening is used to guide the abutment portion to be inserted.

[0010] Furthermore, the insulating housing is provided with multiple signal slots and multiple grounding slots. The multiple signal slots and multiple grounding slots are connected to the slots in the front-to-back direction and connected to the mounting slots downward. Each signal slot accommodates a pair of signal terminals, and each grounding slot accommodates a grounding terminal. Adjacent signal slots and grounding slots are separated by a partition. The width of the extension in the left-to-right direction is greater than the width of the inclined portion in the left-to-right direction. The extension is accommodated in the mounting slot to shield the holding portion of a pair of signal terminals. The inclined portion is accommodated in the signal slot to shield the elastic portion of a pair of signal terminals. The top of the conductive rib extends to the grounding slot to electrically couple the elastic portion of the grounding terminal.

[0011] Furthermore, the terminal module is provided in two parts, which are arranged opposite to each other on the front and rear sides of the slot. The tail of each grounding terminal is bent and extended from its holding part in the front-rear direction. A shield is provided between each terminal block and the plug. Each shield also includes multiple solder feet protruding from the lower end of the plate and exposed in the mounting groove. Each solder foot extends downward from the plate and is located between the tails of two grounding terminals opposite to each other in the front-rear direction. The solder feet and the grounding terminals are soldered together on a circuit board. The height of the solder feet in the vertical direction is less than the thickness of the horizontal part of the signal terminal tail in the vertical direction. The plate shields part of the tail of the signal terminal in the front-rear direction.

[0012] Furthermore, the first assembly part is a cylindrical structure with multiple parts arranged in the left-right direction. The first assembly part includes two elastic hook arms. The first mating part is a stepped hole structure with multiple parts corresponding to the first assembly part. The positioning post is set on the plug. The shielding part has multiple through holes. The first mating part is aligned with the corresponding through holes in the front-back direction so that the first assembly part can be inserted into the through hole and the first mating part at one time. The elastic hook arm and the inner wall surface of the first mating part are engaged in the front-back direction to restrict the elastic hook arm from exiting.

[0013] Furthermore, the side of the plastic base facing the slot is provided with multiple second assembly parts. Each second assembly part is located between two adjacent first assembly parts. The plug is provided with multiple second mating parts corresponding to the multiple second assembly parts. The second assembly part is a column structure, and the second mating part is an open structure. The second assembly part and the second mating part are fastened together.

[0014] Furthermore, the positioning post is set on the plug, and the length of the positioning post in the front-to-back direction is less than the length of the first assembly part or the first mating part. The side of the plastic base near the slot is provided with a receiving hole corresponding to the positioning post. After the positioning post is engaged with the fixing hole, the part protruding from the shield is received in the receiving hole.

[0015] The beneficial effects of this utility model are:

[0016] This invention pre-positions the shielding component by fastening it to the positioning post through fixing holes before it is inserted into the insulating shell. This facilitates assembly and avoids difficulties caused by inserting the shielding component itself into the insulating shell. The shielding component is pre-positioned on the plug or plastic base, preventing displacement relative to it. The plug and plastic base are then assembled by interlocking the first assembly part and the first mating part before being assembled together into the insulating shell. This streamlined assembly process further strengthens the shielding component by clamping it between the plastic base and the plug. Multiple extensions of the shielding component align with the holding parts of multiple signal terminals, and multiple inclined parts align with the elastic parts of multiple signal terminals. The inclined parts increase the overall shielding area of ​​the signal terminals in the vertical direction, resulting in better shielding of the slot connector and effective isolation of crosstalk between adjacent signal terminals, thus improving signal integrity during high-speed signal transmission. [Attached Image Description]

[0017] Figure 1 A perspective view of the slot connector of this utility model installed on a circuit board and mating with a mating component;

[0018] Figure 2 for Figure 1 3D view of the center slot connector;

[0019] Figure 3 for Figure 2 Exploded view of the center slot connector;

[0020] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0021] Figure 5 for Figure 3 Assembly diagram of the intermediate terminal module, shielding component, and plug component;

[0022] Figure 6 for Figure 5 A partial exploded view of the terminal module, shielding component, and plug component from another perspective;

[0023] Figure 7 for Figure 5 An assembly diagram showing one terminal module assembled to the plug and the other terminal module not assembled to the plug from a top-down view.

[0024] Figure 8 for Figure 2 Front view of the center slot connector;

[0025] Figure 9 for Figure 8 A cross-sectional view along the BB section line;

[0026] Figure 10 for Figure 9 A magnified view of a section at point F in the middle;

[0027] Figure 11 for Figure 8 A cross-sectional view along the CC section line;

[0028] Figure 12 for Figure 8 A cross-sectional view along the DD section line;

[0029] Figure 13 for Figure 8 A magnified view of section E with a grounding terminal removed;

[0030] Figure 14 for Figure 2 A partial sectional view along the left-right direction;

[0031] Figure 15 for Figure 8 The image shows only a front view of one terminal module and one shielding component;

[0032] Figure 16 A 3D view of only one terminal module is shown for the slot connector.

[0033] Explanation of icon numbers:

[0034] Slot connector 100 Insulating shell 1 docking surface 11 Slot 111 Mounting surface 12 Mounting slot 121 Side wall 13 Signal slot 131 Grounding groove 132 Barrier 133 Terminal module M Terminal block 2 Signal terminal 2S Grounding terminal 2G Contact Department 21 Elastic part 22 Consolidation Section 23 Tail 24 Plastic base 3 Covering part 31 Opening 311 Reception port 312 First Assembly Section 32 Elastic hook arm 321 Second Assembly Section 33 Shielding component 4 Plate 41 Fixing hole 411 Via 412 Extension 42 Inclined part 43 Solder foot 44 Plug 5 Insulating component 5a First base 51 First Coordination Unit 511 Second Coordination Unit 512 Positioning post 513 Insulating rib 52 Conductive component 5b Second base 53 Conductive rib 54 Connecting part 541 Protrusion 542 Contact part 543 Surface 5431 gap P Metal casing 6 Component 200 Circuit board 300

Detailed Implementation Methods

[0035] To facilitate a better understanding of the purpose, structure, features, and effects of this utility model, the present utility model will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0036] In this utility model, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0037] like Figures 1 to 3 As shown, the slot connector of this utility model is used to transmit high-speed signals, and the slot connector 100 is used to electrically connect with the mating element 200 and the circuit board 300, respectively. That is, the circuit board 300 and the mating element 200 are electrically connected through the slot connector 100, and the slot connector 100 acts as a bridge to transmit electrical signals between the circuit board 300 and the mating element 200. The slot connector 100 is located above the circuit board 300, and the mating element 200 is inserted downwards into the slot connector 100. Specifically, in this embodiment, the slot connector 100 is specifically an MCIO slot connector, and the mating element 200 is specifically an electronic card. Of course, in other embodiments, it can also be other slot connectors such as PCIE, and the mating element 200 can also be a mating connector, which is not limited here.

[0038] like Figure 2 and Figure 3 As shown, the slot connector 100 includes an insulating shell 1 and a terminal module M, a plug 5, a shield 4, and a metal shell 6 disposed within the insulating shell 1. Specifically, there are two terminal modules M, the plug 5 is disposed between the two terminal modules M, and there are also two shields 4. Each shield 4 is sandwiched between a terminal module M and a plug 5. It can be understood that in other embodiments, there may be only one terminal module M and only one shield 4, that is, the plug 5 is disposed on one side of the terminal module M.

[0039] like Figure 3 , Figure 11 and Figure 14As shown, the insulating housing 1 is made of insulating material and includes a mating surface 11 and a mounting surface 12. The mating surface 11 has a recessed slot 111, and the mounting surface 12 has a recessed mounting groove 121 communicating with the slot 111. Specifically, the mating surface 11 and the mounting surface 12 are opposite to each other in the vertical direction Z. The slot 111 and the mounting groove 121 are interconnected in the vertical direction Z. The slot 111 extends upward through the insulating housing 1 and is used to receive the mating element 200. The mounting groove 121 extends downward through the insulating housing 1 to facilitate the installation of the terminal module M. The insulating housing 1 includes two side walls 13 separated by the slot 111 in the front-rear direction Y. Each side wall 13 is provided with multiple signal slots 131, multiple grounding slots 132, and multiple partitions 133. The multiple signal slots 131 and multiple grounding slots 132 are connected to the slot 111 in the front-rear direction Y and connected downward to the mounting groove 121. Adjacent signal slots 131 and grounding slots 132 are separated by partitions 133.

[0040] like Figure 2 and Figure 3 As shown, the terminal module M is housed in the insulating housing 1 and installed in the mounting groove 121 and enters the slot 111. Each terminal module M includes a terminal bar 2 and a plastic base 3 injection molded onto the terminal bar 2. Specifically, there are two terminal modules M. The two terminal bars 2 are located on both sides of the slot 111 along the front-back direction Y. Of course, in other embodiments, when there is only one terminal module M, the terminal bar 2 is located on one side of the slot 111 along the front-back direction Y. Each terminal block 2 includes multiple pairs of signal terminals 2S and multiple ground terminals 2G arranged in the left-right direction X. Each ground terminal 2G and each signal terminal 2S has a contact portion 21, an elastic portion 22, a retaining portion 23 and a tail portion 24. The contact portion 21 protrudes into the slot 111 to mate with the mating element 200. The elastic portion 22 extends obliquely and connects the retaining portion 23 and the contact portion 21. The retaining portion 23 is embedded and fixed in the plastic base 3. The tail portion 24 extends from the lower end of the retaining portion 23 and protrudes out of the mounting groove 121.

[0041] like Figure 9 and Figure 14As shown, the retaining portion 23 also extends obliquely, and the upper end of the retaining portion 23 is closer to the slot 111 than the lower end of the retaining portion 23. Specifically, the retaining portion 23 extends obliquely from bottom to top toward one side of the slot 111 and connects the elastic portion 22 and the tail portion 24. With this arrangement, the length of the retaining portion 23 is the shortest length between the elastic portion 22 and the tail portion 24, thereby making the signal transmission path the shortest path and improving the signal transmission performance. The signal terminals 2S are arranged in pairs, and the two signal terminals 2S located between two adjacent ground terminals 2G form a differential signal pair for transmitting differential signals. Differential signals have better common-mode interference immunity, and their signal paths are symmetrical, which can better ensure signal integrity and reduce signal attenuation and distortion. Each signal slot 131 houses a pair of signal terminals 2S, and each ground slot 132 houses a ground terminal 2G. The partition 133 separates adjacent signal terminals 2S and ground terminals 2G from each other, which helps to maintain signal integrity and reduce electromagnetic interference and crosstalk.

[0042] like Figure 5 and Figure 16 As shown, the plastic base 3 includes a covering part 31, multiple first assembly parts 32, and multiple second assembly parts 33. The first assembly parts 32 and second assembly parts 33 both protrude from the side of the covering part 31 facing the slot 111. A retaining part 23 is embedded in the covering part 31. The side of the covering part 31 facing the slot 111 has multiple openings 311 and two receiving holes 312. Each opening 311 exposes a portion of the retaining part 23 of the corresponding grounding terminal 2G. The receiving holes 312 do not expose the terminal block 2. Specifically, the two receiving holes 312 are located at the left and right ends of the covering part 31 and below the openings 311. The openings 311 are trumpet-shaped and expand from the side closer to the grounding terminal 2G to the side farther away from the grounding terminal 2G. The first assembly parts 32 and second assembly parts 33 are both cylindrical structures and are spaced apart along the left-right direction X. Specifically, the first assembly part 32 includes two elastic hook arms 321, and the second assembly part 33 is a straight column.

[0043] like Figure 3 and Figure 6 As shown, the plug 5 is disposed in the mounting groove 121 and located between the two rows of terminal modules M. The plug 5 includes an insulating member 5a and a conductive member 5b disposed on the insulating member 5a. The insulating member 5a is made of insulating material, and the conductive member 5b is an electrically dissipative material, specifically a conductive plastic material. Specifically, there are two conductive members 5b, each corresponding to one terminal row 2. Of course, in other embodiments, two conductive members 5b can also be combined into one conductive member 5b, which is not specifically limited here.

[0044] like Figure 3 , Figure 9 as well as Figure 14As shown, the insulating member 5a includes a first base 51 and a plurality of insulating ribs 52 protruding upward from the top surface of the first base 51. The plurality of insulating ribs 52 are arranged in two rows corresponding to the front and rear sides of the first base 51, and each insulating rib 52 is provided with a holding part 23 for a pair of signal terminals 2S. The first base 51 is provided with a plurality of first mating parts 511 and a plurality of second mating parts 5121. The plurality of first mating parts 511 and the plurality of second mating parts 512 are all provided on the front and rear sides of the first base 51 and are arranged at intervals along the left and right direction X. The first mating parts 511 and the second mating parts 512 are both open hole structures. Specifically, the first mating part 511 is a stepped hole structure, and the two oppositely arranged second mating parts 512 are interconnected. In other embodiments, the structures of the first assembly part 32 and the first mating part 511 can be interchanged, and the structures of the second assembly part 33 and the second mating part 512 can also be interchanged. That is, the first assembly part 32 and the second assembly part 33 are open-hole structures, and the first mating part 511 and the second mating part 512 are columnar structures. Alternatively, one of the first assembly part 32 or the second assembly part 33 may be an open-hole structure and the other may be a columnar structure. This is not limited here and can be selected according to the actual situation.

[0045] like Figure 7 As shown, specifically, the first mating part 511 engages with the first assembly part 32. The two elastic hook arms 321 of the first assembly part 32 extend into the first mating part 511 and engage with the inner wall surface of the first mating part 511 in the front-rear direction Y to limit the elastic hook arms 321 from exiting. The second mating part 512 and the second assembly part 33 are tightly engaged, that is, they are interfering with each other. In this way, the engagement of the first mating part 511 and the first assembly part 32 can prevent the plastic seat 3 from exiting the plug 5, and the interference of the second mating part 512 and the second assembly part 33 can ensure the stability of the plastic seat 3 and the plug 5 and prevent them from loosening. Two positioning posts 513 are provided on the side of the first base 51 facing the plastic base 3. Specifically, the two positioning posts 513 are separated by the first mating part 511 and the second mating part 512 respectively. That is, the two positioning posts 513 are located at the left and right ends of the plug 5. In other embodiments, one positioning post 513 can also be provided. One positioning post 513 can be provided in the center of the plug 5 and can be arranged in a long strip shape. Of course, the positioning post 513 can also be provided on the plastic base 3. This is not limited here.

[0046] like Figure 3 and Figure 9As shown, conductive member 5b is disposed on plug 5. Each conductive member 5b includes a second base 53 and a plurality of conductive ribs 54 protruding upward from the second base 53 and towards one side of the grounding terminal 2G. The second base 53 is disposed on the first base 51. The plurality of conductive ribs 54 and the plurality of insulating ribs 52 are alternately arranged along the left-right direction X, and the second conductive ribs 54 protrude more than the insulating ribs 52 along the front-back direction Y. Specifically, in the manufacturing process, the insulating member 5a can be injection molded first, and then the conductive member 5b can be injection molded on the insulating member 5a to form plug 5; or, the conductive member 5b can be injection molded first, and then the insulating member 5a can be injection molded on the conductive member 5b to form plug 5; or, the conductive member 5b and the insulating member 5a can be molded separately and then assembled into one piece to form plug 5. No specific limitation is made here.

[0047] like Figure 4 , Figure 10 as well as Figure 12 As shown, each conductive rib 54 includes a connecting portion 541, an abutting portion 543, and a protruding portion 542. The connecting portion 541 is connected to the second base 53. The abutting portion 543 is formed on the side of the connecting portion 541 near the grounding terminal 2G. The abutting portion 543 is used to extend into the opening 311 of the plastic base 3 and make electrical contact with the retaining portion 23 of the corresponding grounding terminal 2G. Each abutting portion 543 is provided with an abutting surface 5431. The distance between the abutting surface 5431 and the adjacent signal terminal 2S in the left-right direction X is greater than the distance between the connecting portion 541 and the adjacent signal terminal 2S in the left-right direction X. That is, the distance between the edge of the abutting portion 543 and the adjacent signal terminal 2S is larger than the distance between the edge of the connecting portion 541 and the adjacent signal terminal 2S. This helps to reduce the absorption of the transmission signal of the signal terminal 2S by the conductive rib 54 and improve the integrity of the signal transmission. The protrusion 542 protrudes upward from the top surface of the abutment 543 and extends upward beyond the plastic base 3. The protrusion 542 is used to electrically couple with the elastic part 22 of the corresponding grounding terminal 2G. The arrangement of the protrusion 542 in the front-back direction Y increases the facing area of ​​the conductive rib 54 corresponding to the grounding terminal 2G, so that the conductive rib 54 can absorb more electromagnetic waves between the signal terminals 2S, thereby further improving the signal integrity of the electrical connector. Specifically, a gap P is provided between the protrusion 542 and the elastic part 22, and the protrusion 542 and the elastic part 22 are coupled by the gap.

[0048] like Figure 5 , Figure 6 and Figure 11As shown, the shielding component 4 is clamped and fixed between the plastic base 3 and the plug 5. Each shielding component 4 includes a plate 41, multiple extensions 42, multiple inclined portions 43, and multiple solder feet 44. The plate 41 extends along the left-right direction X and the up-down direction Z. The multiple extensions 42 extend upward from the plate 41 and are spaced apart along the left-right direction X. Each inclined portion 43 extends inclinedly from the top of the corresponding extension 42 and extends beyond the top surface of the plastic base 3. The solder feet 44 extend downward from the lower end of the plate 41 and are exposed in the mounting groove 121. The plate 41 is provided with a through hole 412 for the first assembly part 32 and the second assembly part 33 to pass through, and a fixing hole 411 for fastening with the positioning post 513. The positioning post 513 and the fixing hole 411 are fastened to each other to assemble and position the shield 4. Specifically, the first assembly part 32 and the second assembly part 33 need to pass through the corresponding through hole 412 and be inserted into the first mating part 511 and the second mating part 512. The first assembly part 32 and the second assembly part 33 are loosely fitted with the through hole 412.

[0049] like Figure 6 , Figure 14 and Figure 15As shown, each extension 42 is clamped and fixed on its front and rear sides by insulating ribs 52 and plastic bases 3, respectively. In this way, the insulating ribs 52 and plastic bases 3 together support the shielding member 4 on the front and rear sides, preventing the extension 42 from tilting to one side of the slot 111 when assembled upwards. Each conductive rib 54 passes through the gap between two adjacent extensions 42 to electrically couple with the grounding terminal 2G. Multiple extensions 42 and multiple connecting parts 541 are arranged alternately. The close distance between the extensions 42 and the adjacent connecting parts 541 allows them to achieve electrical coupling. The plate 41 and the extensions 42 isolate the second base 54 of the conductive member 5b from the holding part 23 of the signal terminal 2S, thus preventing the second base 54 from absorbing the transmission signal of the signal terminal 2S. The width of the extension 42 in the left-right direction X is greater than the width of the inclined portion 43 in the left-right direction X. The extension 42 is accommodated in the mounting groove 121 for shielding the holding portion 23 of a pair of signal terminals 2S. This makes it convenient for the inclined portion 43 to extend into the signal groove 131. The partitions 133 on both sides of the signal groove 131 restrict the position of the inclined portion 43 in the left-right direction X, so that the inclined portion 43 can be aligned to shield the pair of signal terminals 2S. The tilting direction of the inclined portion 43 is the same as that of the elastic portion 22. The inclined portion 43 is housed in the signal slot 131 to shield the elastic portion 22 of a pair of signal terminals 2S. The protrusion 542 and the inclined portion 43 are arranged alternately. The height of the inclined portion 43 is higher than that of the protrusion 542. The protrusion 542 needs to be electrically coupled to the elastic portion 22. Therefore, the protrusion 542 is closer to the elastic portion 22 of the ground terminal 2G in the front-back direction Y than the inclined portion 43. So the height of the protrusion 542 is limited by the junction of the elastic portion 22 of the ground terminal 2G and the retaining portion 23. The distance between the inclined portion 43 and the elastic portion 22 of the ground terminal 2G in the front-back direction is greater. Therefore, the inclined portion 43 can extend higher along the tilting direction of the elastic portion 22 without blocking the elastic displacement of the elastic portion 22. In this way, while ensuring that the elastic portion 22 has sufficient elastic deformation space, the height of the inclined portion 43 can be set higher, so that the shielding area of ​​the elastic portion 22 of the ground terminal 2G is larger.

[0050] like Figure 5 , Figure 8 and Figure 13 As shown, each solder foot 44 extends along the vertical direction Z and is located between the tails 24 of the two opposite grounding terminals 2G in the two end sub-bars 2. The solder foot 44 and the tails 24 of the grounding terminals 2G are soldered together on the circuit board 300. The height W1 of the solder foot 44 in the vertical direction Z is less than the thickness W2 of the tails 24 of the grounding terminals 2G in the vertical direction Z. The board body 41 shields part of the tails 24 of the signal terminal 2S in the front-back direction Y.

[0051] like Figure 5 and Figure 6As shown, specifically, during assembly, the shield 4 is pre-fixed to the positioning post 513 of the plug 5 through the fixing hole 411, so that the through hole 412 on the shield 4 can correspond to the corresponding first mating part 511. Thus, when the terminal module M is installed, the first assembly part 32 and the second assembly part 33 on the plastic base 3 can be inserted into the corresponding through hole 412 at one time into the first mating part 511 and the second mating part 512, thereby fixing the plastic base 3 to the plug 5. At the same time, the part of the positioning post 513 of the plug 5 that protrudes from the shield 4 after being tightly fitted with the fixing hole 411 can be received by the receiving hole 312, making the fit between the positioning post 513 and the fixing hole 411 more stable, and facilitating the clamping and fixing of the shield 4 between the plastic base 3 and the plug 5.

[0052] like Figure 2 and Figure 3 As shown, the metal housing 6 is mounted on the insulating housing 1 and fixed to the circuit board 300, which can effectively shield the external electromagnetic field interference of the slot connector 100 and prevent the internal signal from interfering with the external environment.

[0053] This utility model has the following beneficial effects:

[0054] 1. In this invention, the shielding component 4 is pre-secured to the positioning post 513 via the fixing hole 411 before being inserted into the insulating shell 1. This facilitates the assembly of the shielding component 4 and avoids difficulties caused by the shielding component 4 being inserted into the insulating shell 1. The shielding component 4 is pre-positioned on the plug 5 or the plastic seat 3, preventing it from shifting relative to its positioning on the plug 5 or the plastic seat 3. Then, the plug 5 and the plastic seat 3 are assembled together via the first assembly part 32 and the first mating part 511, and finally assembled into the insulating shell 1. This makes overall assembly convenient and allows the shielding component 4 to be clamped and fixed between the plastic base 3 and the plug 5, further strengthening the fixation of the shielding component 4. This allows the multiple extensions 42 of the shielding component 4 to be aligned with the holding portions 23 that shield multiple pairs of signal terminals 2S, and the multiple tilting portions 43 to be aligned with the elastic portions 22 that shield multiple pairs of signal terminals 2S. The setting of the tilting portions 23 increases the overall shielding area of ​​the signal terminals 2S in the vertical direction. As a result, the shielding effect of the slot connector 100 is better, which can effectively isolate crosstalk between adjacent signal terminals 2S and improve signal integrity in high-speed signal transmission.

[0055] 2. The conductive rib 54 of the conductive member 5b is in direct contact with the grounding terminal 2G. The conductive rib 54 is used to absorb the electromagnetic waves of the grounding terminal 2G and reduce the potential at the grounding terminal 2G to make the resonant point move backward, that is, the resonant frequency moves to other frequencies outside the operating frequency. In this way, the signal integrity is improved. The shielding member 4 and the conductive rib 54 are electrically coupled to form a grounding loop, which optimizes the shielding effect. At the same time, the conductive member 5b can also absorb the electromagnetic waves reflected on the shielding member 4. The front and rear sides of each extension 42 of the shielding member 4 are respectively clamped and fixed by the corresponding insulating rib 52 and plastic seat 3 of the insulating member 5a. In this way, the insulating rib 52 and the plastic seat 3 together support the shielding member 4 on the front and rear sides, which can prevent the extension 42 from tilting to one side of the slot 111 when it is assembled upward.

[0056] 3. A protrusion 542 with a small gap between it and the elastic part 22 of the grounding terminal 2G is added in the vertical direction Z. This not only ensures that the elastic part 22 of the grounding terminal 2G has space for elastic deformation, but also allows the protrusion 542 to be electrically coupled with the elastic part 22 of the grounding terminal 2G. This enables the conductive rib 54 to absorb the electromagnetic waves of the elastic part of the grounding terminal 2G, and also avoids absorbing the transmitted signals of the adjacent signal terminals 2S, thereby further improving the signal integrity of the electrical connector. At the same time, the protrusion 542 is located between two adjacent inclined parts 43, which is conducive to the protrusion 542 absorbing the electromagnetic waves reflected by the inclined parts 43 on both sides.

[0057] 4. The distance between the contact surface 5431 and the adjacent signal terminal 2S in the left-right direction X is greater than the distance between the connecting part 541 and the adjacent signal terminal 2S in the left-right direction X. That is, the distance between the edge of the contact surface 5431 and the adjacent signal terminal 2S in the left-right direction X is greater than the distance between the edge of the connecting part 541 and the adjacent signal terminal 2S. This arrangement can also help reduce the absorption of the transmission signal of the adjacent signal terminal 2S by the conductive rib 54. At the same time, the holding part 23 of the signal terminal 2S and the second base 53 are isolated by the shield 4. Thus, the second base 53 will not affect the high-speed signal transmission of the signal terminal 2S. Therefore, the signal integrity of the slot connector 100 is better.

[0058] 5. The abutment portion 543 is gradually recessed from the connecting portion 541 in the front-back direction Y toward the grounding terminal 2G. This arrangement facilitates the formation of a narrower abutment surface 5431 by the smooth transition from the connecting portion 541 to the abutment portion 543, while also avoiding excessive removal of conductive material. In addition, the abutment portion 543 can be easily guided to fit the contour of the opening 311, allowing the abutment portion 543 to be smoothly inserted into the opening 311 and abut against the grounding terminal 2G.

[0059] 6. A pair of signal terminals 2S are located in the same signal slot 131, and a single ground terminal 2G is located in a ground slot 132. This helps to reduce electromagnetic interference and crosstalk, maintain signal integrity, and makes it easier for the inclined part 43 to be aligned with the signal slot 131 to shield the pair of signal terminals 2S in the signal slot 131. The partition 133 can not only isolate different pairs of signal terminals 2S to prevent mutual interference, but also the two adjacent partitions 133 constituting the signal slot 131 can limit the position of the inclined part 43 in the left-right direction X.

[0060] 7. Each terminal module M and plug 5 is provided with a shield 4, which helps to enhance the electromagnetic shielding between the two rows of terminal modules M, reduce crosstalk and EMI, and optimize the grounding path. The shield 4 has solder feet 44 corresponding to the tail 24 of the grounding terminal 2G, and the solder feet 44 are directly soldered to the circuit board 300, thus forming a low-impedance independent grounding path. The height W1 of the solder feet 44 in the vertical direction Z is less than the thickness W2 of the horizontal part of the tail 24 of the signal terminal 2S in the vertical direction Z. The board body 41 can shield the tail 24 of the signal terminal 2S in the front-back direction Y, which can further enhance the electromagnetic shielding effect and reduce crosstalk and EMI of the signal terminal 2S.

[0061] 8. The first assembly part 32 is a column structure, and the first mating part 511 is a stepped hole structure. The column structure and the hole mating structure are simple and easy to manufacture. The positioning post 513 is set on the plug 5, that is, the shield 4 is pre-fixed on the plug 5. The through hole 412 of the shield 4 can be aligned with the first mating part 511. Then the terminal module M is installed on the plug 5 so that the first assembly part 32 can be inserted into the through hole 412 and the first mating part 511 at one time, simplifying the installation steps. At the same time, the two elastic hook arms 321 of each first assembly part 32 are engaged with the inner wall surface of the first mating part 511 in the front-back direction Y to restrict the elastic hook arms 321 from exiting.

[0062] 9. Each second assembly part 33 is located between two adjacent first assembly parts 32. The second assembly part 33 and the second mating part 512 are in interference fit. This not only prevents the plastic seat 3 and the plug 5 from falling off, but also increases the stability of the plastic seat 3 and the plug 5.

[0063] 10. The positioning post 513 is tightly fitted with the fixing hole 411, while the first assembly part 32 or the first mating part 511 is loosely fitted with the through hole 412. Therefore, the length of the positioning post 513 is shorter than the length of the first assembly part 32 or the first mating part 511. This facilitates the positioning post 513 to be inserted into the fixing hole 411 and allows the shielding member 4 to be clamped and fixed by the plastic seat 3 and the plug 5. If the length of the positioning post 513 is longer, more effort is required during the tight fit, and it is easy for there to be an assembly gap between the shielding member 4 and the plug 5. After the positioning post 513 is tightly fitted with the fixing hole 411, the part protruding from the shielding member 4 is received in the receiving hole 312. This arrangement can enhance the tightness of the assembly between the plastic seat 3 and the plug 5, so that the plastic seat 3 can better clamp the extension 42 of the shielding member 4 and avoid gaps between the plastic seat 3 and the plug 5, which would affect the fixed position of the extension 42.

[0064] The above detailed description is only a description of the preferred embodiment of this utility model and is not intended to limit the patent scope of this utility model. Therefore, all equivalent technical changes made using the content of this invention's specification and illustrations are included within the patent scope of this invention.

Claims

1. A slot connector for inserting a mating element, characterized in that, include: An insulating housing includes a mating surface and a mounting surface. The mating surface is recessed with a slot for inserting a mating element, and the mounting surface is recessed with a mounting groove communicating with the slot. At least one terminal module is installed in a mounting groove and enters a slot. The terminal module includes a terminal block and a plastic base injection molded on the terminal block. The terminal block is located on at least one side of the slot in the front-back direction. The terminal block includes multiple pairs of signal terminals and multiple ground terminals arranged in the left-right direction. Each ground terminal and each signal terminal has a contact portion, an elastic portion, a retaining portion and a tail portion. The contact portion protrudes into the slot for docking with a mating element. The elastic portion extends obliquely and connects between the retaining portion and the contact portion. The retaining portion is embedded and fixed in the plastic base. The tail portion extends from the lower end of the retaining portion and extends out of the mounting groove. The plastic base is located in the mounting groove and has a first assembly portion on the side close to the slot. A plug is provided in the mounting groove. The side of the plug facing the plastic seat has a first mating part. The first assembly part and the first mating part are interlocked to assemble and fix the plug and the plastic seat together. A positioning post is provided on one of the opposing sides of the plug and the plastic seat. A shielding component is sandwiched between a plastic base and a plug. The shielding component includes a plate, multiple extensions, and multiple inclined portions. The multiple extensions extend upward from the plate and are spaced apart in the left-right direction. Each inclined portion extends obliquely from the top of the corresponding extension and extends beyond the top surface of the plastic base. The plate has a through hole for the first assembly portion or the first mating portion to pass through and a fixing hole for fastening with a positioning post. The positioning post and the fixing hole are fastened together to assemble and position the shielding component, so that the multiple extensions can be aligned with the holding portions that shield multiple pairs of signal terminals, and the multiple inclined portions can be aligned with the elastic portions that shield multiple pairs of signal terminals.

2. The slot connector as described in claim 1, characterized in that: The plug includes an insulating member and a conductive member fitted onto the insulating member. The insulating member includes a first base and a plurality of insulating ribs extending upward from the first base. The conductive member has a second base and a plurality of conductive ribs extending upward from the second base. The second base is fitted into the first base. The plurality of conductive ribs and the plurality of insulating ribs are arranged alternately in the left-right direction, and the conductive ribs protrude from the insulating ribs in the front-back direction. Each insulating rib corresponds to an extension in the front-back direction, and the front and rear sides of the extension are respectively clamped and fixed by the insulating ribs and the plastic seat. Each conductive rib passes through the gap between two adjacent extensions to electrically couple with the grounding terminal.

3. The slot connector as described in claim 2, characterized in that: Each conductive rib includes a connecting portion and a protrusion extending along the extension direction of the elastic portion. A gap is provided between the protrusion and the elastic portion. The connecting portion is connected to the second base and alternately arranged with the extension portion. Each connecting portion is electrically coupled to the adjacent extension portion. The protrusion and the inclined portion are alternately arranged in the left-right direction. Each protrusion extends upward beyond the plastic base. The protrusion is electrically coupled to the elastic portion of the grounding terminal.

4. The slot connector as described in claim 3, characterized in that: The conductive rib also includes an abutting portion extending from the connecting portion toward the side near the grounding terminal. The abutting portion has an abutting surface, and the distance between the abutting surface and the adjacent signal terminal in the left-right direction is greater than the distance between the connecting portion and the adjacent signal terminal in the left-right direction. The side of the plastic base near the slot has multiple recesses corresponding to multiple grounding terminals. Each opening exposes the retaining portion of the corresponding grounding terminal. The abutting portion extends into the opening and abuts the abutting surface with the retaining portion of the grounding terminal.

5. The slot connector as described in claim 4, characterized in that: The abutting part is gradually recessed from the connecting part in the front-to-back direction toward the grounding terminal. The shape of the opening is adapted to the shape of the abutting part, and the opening is used to guide the abutting part to be inserted.

6. The slot connector as described in claim 2, characterized in that: The insulating housing has multiple signal slots and multiple grounding slots. The multiple signal slots and multiple grounding slots are connected to the slots in the front-to-back direction and connected to the mounting slots downward. Each signal slot accommodates a pair of signal terminals, and each grounding slot accommodates a grounding terminal. Adjacent signal slots and grounding slots are separated by a partition. The width of the extension in the left-to-right direction is greater than the width of the inclined portion in the left-to-right direction. The extension is housed in the mounting slot to shield the holding portion of a pair of signal terminals. The inclined portion is housed in the signal slot to shield the elastic portion of a pair of signal terminals. The top of the conductive rib extends to the grounding slot to electrically couple the elastic portion of the grounding terminal.

7. The slot connector as claimed in claim 1, characterized in that: The terminal module has two components, which are arranged opposite each other on the front and rear sides of the slot. The tail of each grounding terminal is bent and extended from its holding part in the front-rear direction. Each terminal block and plug is provided with a shield. Each shield also includes multiple solder feet protruding from the lower end of the plate and exposed in the mounting groove. Each solder foot extends downward from the plate and is located between the tails of two grounding terminals opposite each other in the front-rear direction. The solder feet and grounding terminals are soldered together on a circuit board. The height of the solder feet in the vertical direction is less than the thickness of the horizontal part of the signal terminal tail in the vertical direction. The plate shields part of the tail of the signal terminal in the front-rear direction.

8. The slot connector as claimed in claim 1, characterized in that: The first assembly part is a cylindrical structure with multiple parts along the left and right direction. The first assembly part includes two elastic hook arms. The first mating part is a stepped hole structure with multiple parts corresponding to the first assembly part. The positioning post is set on the plug. The shielding part has multiple through holes. The first mating part is aligned with the corresponding through hole in the front and back direction so that the first assembly part can be inserted into the through hole and the first mating part at one time. The elastic hook arm and the inner wall surface of the first mating part are engaged in the front and back direction to restrict the elastic hook arm from exiting.

9. The slot connector as claimed in claim 1, characterized in that: The side of the plastic base facing the slot is also provided with multiple second assembly parts. Each second assembly part is located between two adjacent first assembly parts. The plug is provided with multiple second mating parts corresponding to the multiple second assembly parts. The second assembly part is a column structure, and the second mating part is an open structure. The second assembly part and the second mating part are fastened together.

10. The slot connector as claimed in claim 1, characterized in that: The positioning post is set on the plug, and the length of the positioning post in the front-to-back direction is less than the length of the first assembly part or the first mating part. The side of the plastic base near the slot is provided with a receiving hole corresponding to the positioning post. After the positioning post is engaged with the fixing hole, the part protruding from the shield is received in the receiving hole.

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