TWI828195B - Socket and connector components - Google Patents

Abstract

A socket is shown. The socket can provide two rows of terminals to increase interface density. If desired, a connector located in the receptacle can omit a base even if the receptacle provides a stacked connector configuration. By employing various air flow characteristics, plug-in modules with power exceeding 6 watts and potentially exceeding 8 watts can be cooled.

Description

Socket and connector components

The present invention relates to the field of input/output (IO) connectors, and more particularly to IO connectors suitable for high data rate applications.

Input/output (IO) connectors are designed to support high data transfer rates and many improvements have been developed to help provide data transfer rates up to 25Gbps and beyond. However, to support customer needs and desires, many companies are exploring ways to support higher data transfer rates. As a result, development work is underway to support 50Gbps using NRZ encoding and 100Gbps using PAM 4 encoding. However, these improvements will create significant problems with existing manufacturing technologies, as conventional circuit boards cannot easily support 25GHz signals. New architectures and approaches will be required.

Another way to support increased data transfer rates has been to try to increase the number of ports. One way to increase the number of ports is to reduce the size of the connector. For example, many standard connectors are typically designed to operate at 0.8mm or 0.75mm pitch and a connector standard that supports 0.5mm has recently been approved (OCULINK connector). Although reducing connector size works well for blank board designs and is effective in supporting very high densities at the front of the rack, smaller connectors are more problematic for fiber optic connector designs because the very small size makes Adequate heat dissipation from the connector becomes a problem. They also tend to use smaller-sized conductors, which makes it difficult to support cable lengths longer than 2 or 3 meters. Additionally, the size of this new smaller connector creates potential problems for people wanting some degree of backwards compatibility. As a result, certain groups of people will appreciate further improvements in connector technology.

A connector is disclosed that includes a lamella body group formed by an insulating frame supporting a plurality of terminals. The set of lamellae can be located in a housing without the need for a base. The card slot element is aligned with the contacts of the plurality of terminals. In one embodiment, a connector may include a laminar body supporting two rows of terminals on either side of a card slot and the connector may be arranged to have a press-fit tail.

The connector assembly of the present invention includes a cover defining a port and forming a bottom wall with a protruding tongue located on a connection side of the bottom wall; and a card slot plug forming A butt portion has a tongue groove, the tongue groove is used to receive the protruding tongue portion of the bottom wall, and the protruding tongue portion is inserted into the tongue groove of the butt portion.

In some embodiments, the card slot plug engages a connector having a lamella assembly.

In some embodiments, the lamella group is located in the cover, the lamella group includes a plurality of lamellas, and the lamella group is not extended by a solid portion along the lamella group. The base support, the lamella body group has a first side, a second side and a third side, each lamella body in the lamella body group has an insulating frame supporting a plurality of terminals, the lamella body At least one terminal of the group has a bent shape defining a contact end of the at least one terminal facing a top wall, wherein at least a portion of the lamellas in the lamella group are connected to a ground , signal, signal pattern arrangement.

In some embodiments, the lamella bodies each have a plurality of gaps located adjacent to the top wall of the insulating frame to provide a meandering air path along the top wall through the gaps.

In some embodiments, the set of lamellae provides a dimensional overlap between the card slot plug and the cover.

In some embodiments, a plug module is inserted into the connector assembly based on the lamella set aligning the housing to reduce dimensional overlap between the card slot plug and the housing.

In some embodiments, the protruding tongue portion and the tongue portion use a groove interference fit to combine the cover body and the connector.

In some embodiments, the tongue groove has a larger size than the protruding tongue to provide a small range defined by the size difference between the tongue groove and the protruding tongue. Infinite adjustments.

The socket of the present invention includes a cover body, which has a top wall, two side walls, a rear wall and a bottom wall with a protruding tongue portion. The tongue portion is located on a connecting side of the bottom wall. The cover body defining a port; a lamella group located in the cover, the lamella group including a plurality of lamellae, the lamella group is not formed by a base extending along a solid portion of the lamella group; The base support, the lamella body group has a first side, a second side and a third side, each lamella body in the lamella body group has an insulating frame supporting a plurality of terminals, the lamella body group has At least one terminal has a bent shape defining a contact end of the at least one terminal facing the top wall, wherein at least a portion of the laminated bodies in the laminated body group is connected to a ground, signals, pattern arrangements of signals; and two retaining bars, one of which is located on the first side, and the other of which is located on the second side; and a card slot plug forming a tongue portion The tongue groove is used to receive the protruding tongue portion of the bottom wall, and the protruding tongue portion is inserted into the tongue groove of the butt portion.

In some embodiments, the card slot plug engages a connector having a lamella assembly.

In some embodiments, the lamella group is located in the cover, the lamella group includes a plurality of lamellas, and the lamella group is not extended by a solid portion along the lamella group. The base support, the lamella body group has a first side, a second side and a third side, each lamella body in the lamella body group has an insulating frame supporting a plurality of terminals, the lamella body At least one terminal of the group has a bent shape defining a contact end of the at least one terminal facing a top wall, wherein at least a portion of the lamellas in the lamella group are connected to a ground , signal, signal pattern arrangement.

In some embodiments, the lamella bodies each have a plurality of gaps located adjacent to the top wall of the insulating frame to provide a meandering air path along the top wall through the gaps.

In some embodiments, the set of lamellae provides a dimensional overlap between the card slot plug and the cover.

In some embodiments, a plug module is inserted into the connector assembly based on the lamella set aligning the housing to reduce dimensional overlap between the card slot plug and the housing.

In some embodiments, the protruding tongue portion and the tongue portion use a groove interference fit to combine the cover body and the connector.

In some embodiments, the tongue groove has a larger size than the protruding tongue to provide a small range defined by the size difference between the tongue groove and the protruding tongue. Infinite adjustments.

The following detailed description describes various exemplary embodiments and is not intended to be limited to the expressly disclosed combinations. Accordingly, unless otherwise stated, various features disclosed herein may be combined together to form multiple additional combinations not shown for purposes of brevity.

As can be appreciated from FIGS. 1 to 5 , a socket 100 is mounted on a circuit board 10 and provides a right-angle structure configured to receive the plug module 20 . The illustrated receptacle 100 design is advantageous for use with multiple plug modules 20 including multiple cooling slots 115 . Although the use of cooling slots 115 in a module 20 is not required, the cooling slots 115 can provide additional cooling and when used with other features disclosed herein make it easier to cool a plug module 20 that uses more than 8 watts of power.

Referring to Figures 1, 4 and 6, the socket 100 includes a cover 120 and can support the light pipe 105 if desired. The cover body 120 includes a top wall 122, a first side wall 123, a second side wall 124, a rear wall 125 and a front edge 126. The socket 100 defines an upper port 121a and a lower port 121b. Each of the first side wall 123 and the second side wall 124 may include a plurality of ventilation holes 135 .

Referring to Figures 6, 7A, and 10, as can be appreciated, the design shown is intended to facilitate cooling of an inserted plug module 20. From this, the design has been tailored to improve air flow in a variety of ways that will be explained in this article. In some embodiments, the socket 100 may include an internal riding heat sink 134 in communication with a front grill 130 and a rear opening set 132 . The top wall 122 may include a cooling opening 122a and an external riding heat sink (not shown) can be positioned within the cooling opening 122a. The two positioned heat sinks 134 are typically designed to extend into the upper and lower ports 121a, 121b and engage an inserted header module 20, which helps provide a thermal path to direct heat away from the header module 20 . It should be noted that in some circumstances it may not be desirable to have this additional cooling (e.g., in applications where active modules will not be employed) and many optional thermal features can be omitted in these cases. Thus, the illustrated internally mounted heat sink 134 and various ventilation features may be omitted if not required.

One conventional design of existing sockets uses a base within a housing that helps define a connector. The shroud helps support the mating plug module, which helps support the connector and also provides EMI protection. The connector within the housing supports multiple terminals including tails and contacts that allow the mating plug module to be electrically connected to a circuit board (or cable, if a bipass design is desired). Receptacles are typically press-fit onto a circuit board for ease of assembly, whereby the receptacle must align the connector's terminals with the terminals on the housing. As can be appreciated, the cover may be formed of metal and is intended to have a reasonably repeatable layout of multiple tails with the desired dimensional control relative to each other. Multiple tails of the connector can be carefully manufactured so that they are aligned with each other. However, what is slightly more difficult is aligning the tail of the connector with the tail of the housing, since there are multiple points of dimensional overlay. This sizing issue is compounded by the fact that in a typical seat-supported lamella body, the lamella supports the terminal's press-fit design. Thus, the terminals within a wafer are controlled in size relative to each other but have a dimensional overlap with respect to the base and other lamellae, and the base has a dimensional overlap with the cover. Existing designs attempt to use a datum as a stop point to carefully control the insertion of the base into the housing to control the error between the datum position and the tail of both the housing and the connector.

Referring to Figures 7A-7C, although such control is possible, it turns out to be more problematic and difficult, especially as these tails decrease in size. Applicants have determined that rather than having a stop that limits and controls the position of the base relative to the housing, it is preferable to have a system in which the housing 120 and connector 129 can be connected in such a manner that The bottom is docked together, allowing unlimited adjustment within a small range so that the docking of the cover 120 and the connector 129 (see Figure 11A) can be performed in a controlled manner and dimensional control can be ensured. As shown, the cover body 120 includes bottom walls 140 and 141, each of which has a tongue portion 142, and the tongue portion 142 is inserted into the corresponding card slot plug 150 and 160. More specifically, the tongue portion 142 is inserted into the tongue portion grooves 153 and 163 in the mating portions 152 and 162 of the card slot plugs 150 and 160 respectively from the cover body 120 . As can be appreciated, card slot plugs 150, 160 engage a lamella set 220 and will provide some additional dimensional overlap between the two. In one embodiment, insertion can be based on alignment between the lamella set 220 and the shell 120, thereby eliminating some dimensional overlap that would otherwise exist. In one embodiment, the tongue 142 is an interference fit with the tongue grooves 153, 163 so that the cover 120 and the connector 129 are properly coupled and held in the correct position relative to each other. Such a manufacturing process allows the position of the cover 120 and the lamella body set 220 to be better controlled relative to each other and increases the yield strength of the socket 100 while ensuring that the socket 100 can be properly mounted on the circuit board 10 .

Referring to Figures 11A, 15 and 16, as can be appreciated from the figures, the connector 129 shown omits a base. The Applicant surprisingly found that a base is not necessary to support a lamella group 220 as long as the lamellas 221 are securely fastened together, preferably on at least two sides. In an illustrated embodiment, the retaining strips 171 are located on opposite sides and one of the two sides has two retaining strips 171 with openings 170 . The holding strip 171 is connected to a plurality of lamella bodies 221 through the openings 170 through a plurality of lamella body nubs 229 , and the lamella body nubs 229 can be thermally welded to the holding strip 171 . The illustrated connector 129 illustrates an embodiment in which a triangular layout is provided with two retaining bars 171 on one side and one retaining bar 171 on the other side of the lamella set 220 . Although it is desirable to have at least two retaining strips 171 (each on a different side of connector 129), a triangular arrangement of retaining strips 171 has been determined to be beneficial as it is the plurality of lamellae that make up lamella group 220. The 221 provides improved control and support. What has been established is that removing the base provides some unexpected benefits. One problem is that no base is perfectly square and straight, so the error in the base adds to the error in the lamellae and thus increases the error in the tail position. By eliminating the base, Applicants can better control the position of the tail of the lamella group 220 relative to the cover 120 . Removing the base also allows the size of the socket 100 to be reduced, thereby allowing increased density.

Referring to Figures 8, 19 and 21, each sheet body 221 includes an insulating frame 221a. The illustrated insulating frame 221a includes an upper protrusion 224 and supports the terminal groups 252, 262, 272 (as contemplated, in various embodiments there is a three-lamella system that includes a ground foil and two signal lamellae). It should be noted that the configuration of the terminals shown, while beneficial to the socket 100 shown, is not intended to be limiting, as the features of providing a connector without a base have a wide range of applicability. It is thereby provided that the baseless design component can be used with a wide range of laminate configurations.

Referring to Figures 8, 20 and 21, the terminal set 252 includes a plurality of terminals 253. Each terminal 253 includes a contact 253a, a tail portion 253b and a body portion 253c extending between the contact point 253a and the tail portion 253b. Similarly, the terminal set 262 includes a plurality of terminals 263 including a contact 263a, a tail 263b, and a body 263c extending between the contact 263a and the tail 263b. Because the tails 253b, 263b are shown to be press-fit into a circuit board, it is helpful to provide a socket in which force can be easily applied to the tails 253b, 263b to press the tails into vias in a circuit board ( vias). As shown, the insulating frame 221a includes a plurality of upper protrusions 224 extending to a top wall 122 of the cover 120 (see FIG. 7A). As a result of the design shown, the force exerted on the cover 120 is transmitted to the tail portions 253b, 263b via the insulating frame 221a and thus a reliable press-fit operation is possible.

The upper protrusion 224 is shown having a plurality of notches 124a so that the lamella 221 engages the top wall 122 in several locations but with clearance. The plurality of notches 124a can be arranged in a pattern that allows air to flow along the top wall 122 of the enclosure 120 in a desired manner. As can be appreciated, the number and size and location of notches 124a can be varied appropriately to provide the desired air flow.

It should be noted that the plurality of gaps 124a do not provide a straight path for the air to flow between the plurality of lamellae 221 and the top wall 122, but the plurality of gaps 124a provide a tortuous path for the air to flow through. , and thus the pressure drop of air flowing across the socket 100 may be increased. Although the path shown may be considered to be in a zig-zag or undulating path, other forms of paths may be provided, depending on the configuration of the top wall 122. In an alternative embodiment, upper protrusion 224 may be shortened and an insert 129a (shown schematically in FIG. 26 ) may be located between lamella set 220 and top wall 122 . The insert 129a can transfer force from the top wall 122 to the plurality of lamellae 221 while providing a more optimized air flow path between the top wall 122 and the lamella group 220 (thereby reducing air resistance). In another alternative embodiment, the insert 129a may be removable and used only to mount the connector 129 on the circuit board 10 before being removed. In such a design, the rear wall 125 of the cover 120 can rest against the cover 120 (or at least a majority of the cover 120 ) and the connector 129 after both the cover 120 (or at least a majority of the cover 120 ) and the connector 129 are pressed into the circuit board 10 and the opening can provide reduced air resistance. Many variations are possible, depending on the air flow required and the desired management costs.

Referring to Figures 7A, 13 and 15, the design shown provides a plurality of lamellae 221 having a front contact row 245 spaced along the insertion direction of a plug module 20 (see Figure 5) and a The rear contact row 246 and the two contact rows are configured to engage two rows of pads of a mating connector. Although not required, the benefit of such a design is a significant increase in density. If this density is not desired, multiple lamellae 221 can be made to support a smaller number of terminals. It should be noted that the plurality of lamellae 221 shown are patterned to provide a repeatable ground, signal, signal pattern. Other modes are possible if desired. If desired, the plurality of ground lamellae 271 may include a plurality of terminals that are commoned together and in one embodiment, the plurality of ground lamellae 271 may have contacts that engage the top wall 122 , thereby providing the cover 120 Provide electrical grounding.

Referring to Figures 11A, 11B, and 13, because connector 129 does not require a base (although a base is possible if required in some embodiments), connector 129 is shown utilizing a lamella body Group 220 supports card slot plugs 150, 160. As shown, card slot plugs 150, 160 each have shoulders similar to shoulders 156a, 156b that snap to retention features of at least some of the lamellas 221 of the lamella set 220 to provide the desired Position and stability control. In one embodiment, only ground lamella 271 may include retention features. As shown, shoulders 156a, 156b may have grooves 154 that engage protrusions 226, although other retaining configurations are suitable. Referring to FIG. 7A , card slot plugs 150 and 160 are located in the ports 121 a and 121 b defined by the cover 120 and provide a card slot 151 that has a plurality of contacts located on both sides of the card slot 151 . The card slot 151 preferably includes a plurality of terminal slots 155 for the front contact row 245 so that the most vulnerable contacts are protected during initial mating with a mating plug connector. Because the front portions of the card slot plugs 150, 160 facilitate alignment and control of mating board cards, the rear contact row 246 may beneficially omit terminal slots. If desired, a card slot plug 160 may include a leg 166 that will plug into the circuit board 10, but such a feature is optional and is expected to be helpful including two vertically arranged in a 2XN configuration. Port design.

Referring to FIGS. 7A , 8 and 15 , in one embodiment, the retaining strip 171 can be configured to engage the cover 120 . The retaining strip 171 can be made wider than the lamella body set 220, so that the retaining strip 171 slides along the side walls 123, 124 of the cover body 120. If a configuration is desired that helps ensure proper alignment of cover 120 with lamella set 220, retention strip 171 may include vents 172 to allow air to flow more easily through socket 100 (see Figure 1).

Referring to Figure 11B, it has been confirmed that for a complete dual row design it is desirable that the contacts be blanked (it has been confirmed that this provides mechanical and signal integrity benefits) . The embodiment thus shown features two rows of stamped contacts on both sides 151a, 151b of the card slot 151.

Referring to FIGS. 13 and 15 , in order to support the front contact row 245 , the sheet body 221 includes an arm 228 , and the arm 228 extends beyond the rear contact row 246 . Arms 228 help ensure that impedance is managed more consistently across the body portion of lamella 221 . To provide suitable flexibility, the arm 228 may include a notch 228a that allows the arm 228 to flex slightly.

Referring to FIGS. 18 , 19 and 21 , as mentioned above, each terminal includes a contact, a tail and a body extending between the contact and the tail. The structure shown includes a grounding sheet body 271 and a signal sheet body group 250. The signal sheet body group 250 includes a first signal sheet body 251 and a second signal sheet body 261. The signal sheet group 250 thus provides a first differential pair 254a, a second differential pair 254b, a third differential pair 254c and a fourth differential pair 254d for the upper port 121a. Referring to FIG. 22 , the signal sheet group 250 also provides a fifth differential pair 255a, a sixth differential pair 255b, a seventh differential pair 255c and an eighth differential pair 255d for the lower port 121b. Referring again to Figure 24, it can be appreciated from the terminal configuration shown that, for upper port 121a and lower port 121b, the terminals forming the two rear differential pairs have their tails located at the two differential pairs forming the front contacts. between the tails. For example, differential tail groups 257b, 257c are associated with contact pairs 258b, 258c, respectively, which are in the rear contact row. Differential tail groups 257a, 257d flank differential tail groups 257b, 257c and are associated with contact pairs 258a, 258d in the front contact row. It was determined that this construction was beneficial because it allowed the three rows of terminals to be of similar lengths, albeit with one significantly longer terminal. The embodiment thus shown helps provide more consistent terminal lengths.

Referring to Figures 22, 23 and 25B, as can be appreciated, an upper row of contacts is opposite to a lower row of contacts. In one embodiment, the contacts of the terminals forming the upper row of contacts may have a shape 256b, the shape 256b is bent along a first direction, and the terminals forming the lower row of contacts may have a shape 256a, the shape 256a may also be bent along a first direction. Bend in the first direction. For example, all sets of contacts may have shapes that are bent to one side (eg, these shapes can be bent to the left or right) when the contacts are viewed straight along the insertion direction of a plug module. Although this configuration is beneficial, the result is that for some applications it may be desirable to offset the upper row of contacts from the lower row of contacts. To provide this function, the contacts may taper downwardly from a beam portion 302a, 302b to a pad contact portion 301a, 301b, where the pad contact portion 301a, 301b is less than half the width of the beam portion 302a, 302b. If desired, the upper row of pad contact portions 301a, 301b may be located on opposite sides of the beam portions 302a, 302b from the lower row of pad contact portions 301a, 301b to provide an offset alignment. If such an alignment is not required, the contacts may be configured symmetrically or in other desired configurations.

The spacing can vary depending on the interface used. As shown, the terminals are at an x-spacing, which is 0.8mm while the upper and lower terminals can have a y-offset, which can be 0.4mm. If the connector provides an upper and lower double row of contacts and the front contacts will be compatible with the existing design, it would be beneficial to match the spacing of the contacts to the existing design. If a blank board design is preferred, then the spacing can be varied as desired, keeping in mind that signal integrity performance will be more challenging as the spacing decreases below 0.8mm, and a spacing below 0.65mm generally requires additional features , such as biased boards and/or contact interfaces (such as those used in OCULINK connectors).

The invention presented herein illustrates various features of its preferred and exemplary embodiments. Those skilled in the art, upon reading this disclosure, will devise many other embodiments, modifications, and variations that fall within the scope and spirit of the appended claims.

10:Circuit board 20:Plug module 100:socket 105:Light pipe 115: Cooling tank 120: Cover body 121a: Go to port 121b:Downtown 122: Top wall 122a: Opening for cooling 123:First side wall 124:Second side wall 124a: Gap 125:Rear wall 126: leading edge 129:Connector 129a:Plug-in 130:Front grille 132:Rear opening group 133: Externally mounted radiator 134: Internally installed radiator 135:Vent hole 140, 141: Bottom wall 142: Tongue 150, 160: card slot plug 151:Card slot 151a, 151b: side 152, 162: docking part 153, 163: Groove for tongue 154: Groove 155:Terminal slot 156a, 156b: Shoulder 166:Legs 170:Open your mouth 171: Holding bar 172:Vent hole 220: Lamella body group 221:flake body 221a: Insulating frame 224: Upper protrusion 226:bulge 228:Arm 228a: Notch 229: Lamella agglomeration 245: Front contact row 246:Rear contact row 250:Signal sheet group 251: First signal sheet body 252, 262, 272: terminal group 253:Terminal 253a:Contact 253b:Tail 253c: Ontology part 254a: First differential pair 254b: Second differential pair 254c: The third differential pair 254d: The fourth differential pair 255a: The fifth differential pair 255b: The sixth differential pair 255c: The seventh differential pair 255d: The eighth differential pair 256a, 256b: shape 257a, 257d: Differential tail group 257b, 257c: Differential tail group 258a, 258d: contact pair 258b, 258c: contact pair 261: Second signal sheet body 263:Terminal 263a:Contact 263b:Tail 263c: Ontology part 271: Grounded sheet body 301a, 301b: Gasket contact part 302a, 302b: Beam

The invention is illustrated by way of example but not limited to the accompanying drawings, in which like reference numerals designate similar parts, and in which: Figure 1 shows a perspective view of an embodiment of a connector system. FIG. 2 shows a perspective cutaway view along line 1 - 1 of the embodiment shown in FIG. 1 . FIG. 3 shows another perspective view of the embodiment shown in FIG. 1 . FIG. 4 shows a simplified perspective view of the embodiment shown in FIG. 3 . FIG. 5 shows a perspective view of an embodiment before a plug module is inserted into a socket. Figure 6 shows a perspective view of an embodiment of a socket. Figure 7A shows a perspective cutaway view taken along line 7-7 of the embodiment shown in Figure 6. Figure 7B shows an enlarged simplified perspective view of the embodiment shown in Figure 7A. FIG. 7C shows an enlarged perspective view of the embodiment shown in FIG. 7A. Figure 8 shows a perspective view of the embodiment shown in Figure 6, with the cover partially removed. Figure 9 shows a simplified perspective view of the embodiment of Figure 6 with the top wall and front portion of the cover removed. Figure 10 shows a perspective cutaway view of the embodiment shown in Figure 7A, with a top wall modified. Figure 11A shows a perspective view of an embodiment of a connector. FIG. 11B shows an enlarged perspective view of the embodiment shown in FIG. 11A. Figure 12 shows another perspective view of the embodiment shown in Figure 11A. Figure 13 shows a partially exploded perspective view of the embodiment shown in Figure 11A. FIG. 14 shows an enlarged perspective view of the embodiment shown in FIG. 13 . Figure 15 shows a perspective view of the embodiment of Figure 13 with the card slot plug removed. Figure 16 shows a perspective view of an embodiment in which a retaining strip secures a lamella group. Figure 17 shows an exploded perspective view of a portion of an embodiment of a connector. Figure 18 shows an exploded perspective view of a portion of an embodiment of a pair of signal lamellae surrounded by two ground lamellae. Figure 19 shows a simplified perspective view of the embodiment shown in Figure 18, with an insulating frame removed for illustration purposes. Figure 20 shows a perspective view of an embodiment of a signal sheet pair. Figure 21 shows a perspective view of this embodiment with the insulating frame removed. Figure 22 shows a perspective view of an embodiment providing a plurality of terminals for a contact row located in a lower port. FIG. 23 shows another perspective view of the embodiment shown in FIG. 22 . Figure 24 shows a side view of the embodiment shown in Figure 22. Figure 25A shows a plan view of the embodiment shown in Figure 21. Figure 25B shows an enlarged plan view of the embodiment shown in Figure 25A. Figure 26 shows a schematic diagram of an embodiment of a connector with a plug-in.

10:Circuit board

20:Plug module

100:socket

Claims (16)

A connector assembly including: a cover defining a port and forming a bottom wall with a protruding tongue located on a connecting side of the bottom wall; and A card slot plug forms a butt portion with a tongue groove, the tongue groove is used to receive the protruding tongue portion of the bottom wall, and the protruding tongue portion is inserted into the tongue of the butt portion. Department use slot. The connector assembly of claim 1, wherein the card slot plug engages a connector having a lamella body set. The connector assembly of claim 2, wherein the lamella body group is located in the cover, the lamella body group includes a plurality of lamella bodies, and the lamella body group is not formed by a lamella body along the lamella body. A base support extending from a solid portion of the set, the set of lamellae having a first side, a second side and a third side, each lamellae in the set of lamellae having an insulating frame supporting a plurality of terminals body, at least one terminal of the lamella body group has a bent shape, the bending shape defines a contact end of the at least one terminal facing a top wall, wherein at least a part of the lamella body group is The lamellae are arranged in a ground, signal, signal pattern. The connector assembly of claim 3, wherein each of the lamella bodies has a plurality of notches located adjacent to the top wall of the insulating frame to provide a meandering path along the top wall through the notches. air path. The connector assembly of claim 2, wherein the set of lamellae provides a dimensional overlap between the card slot plug and the cover. The connector assembly of claim 3, wherein inserting a plug module into the connector assembly is based on the alignment of the sheet set with the cover body to reduce the gap between the card slot plug and the cover body. size overlay. The connector assembly according to claim 2, wherein the protruding tongue portion and the tongue portion are interference-fitted with a groove to combine the cover body and the connector. The connector assembly of claim 1, wherein the tongue groove has a larger size than the protruding tongue to provide a gap defined by a size difference between the tongue groove and the protruding tongue. Infinite adjustment within a small range. A socket consisting of: A cover body having a top wall, two side walls, a rear wall and a bottom wall with a protruding tongue portion, the tongue portion is located on a connecting side of the bottom wall, and the cover body defines a port; A lamella group is located in the cover, the lamella group includes a plurality of lamellas, the lamella group is not supported by a base extending along a solid portion of the lamella group, so The laminated body group has a first side, a second side and a third side, each laminated body in the laminated body group has an insulating frame supporting a plurality of terminals, and at least one terminal of the laminated body group has a bent shape defining a contact end of the at least one terminal facing the top wall, wherein at least a portion of the laminated bodies in the laminated body group is connected to a ground, signal, signal pattern layout; and two retaining strips, one of which is located on the first side and the other of which is located on the second side; and A card slot plug forms a butt portion with a tongue groove, the tongue groove is used to receive the protruding tongue portion of the bottom wall, and the protruding tongue portion is inserted into the tongue of the butt portion. Department use slot. The socket of claim 9, wherein the card slot plug engages a connector having the sheet set. The socket according to claim 10, wherein the lamella body group is located in the cover body, the lamella body group includes a plurality of lamella bodies, and the lamella body group is not formed by a line along the lamella body group. a base support with a solid portion extending, the lamella body set having a first side, a second side and a third side, each lamella body in the lamella body set having an insulating frame supporting a plurality of terminals, At least one terminal of the lamella group has a bent shape, and the bent shape defines a contact end of the at least one terminal facing the top wall, wherein at least a portion of the lamella group is The lamellae are arranged in a ground, signal, signal pattern. The socket of claim 11, wherein each of the sheet bodies has a plurality of notches located adjacent to the top wall of the insulating frame to provide a meandering air path along the top wall through the notches. . The socket of claim 10, wherein the set of lamellae provides a dimensional overlap between the card slot plug and the cover. The socket of claim 11, wherein inserting a plug module into the connector assembly is based on aligning the lamella set with the cover to reduce the size between the card slot plug and the cover. Overlay. The socket according to claim 10, wherein the protruding tongue portion and the tongue portion are interference-fitted with a groove to combine the cover body and the connector. The socket of claim 9, wherein the tongue groove has a larger size than the protruding tongue to provide a gap defined by a size difference between the tongue groove and the protruding tongue. Infinite adjustments within a small range.