Floating high-speed connector

Abstract

The utility model belongs to the technical field of connectors, and particularly relates to a floating high-speed connector, which comprises a connector provided with an identification guide sleeve and an adaptive connector provided with an identification guide pin, the connector is provided with a golden finger printed board, the golden finger printed board is provided with a golden finger contact element, and the identification guide sleeve and the identification guide pin are inserted into each other in the process of inserting the connector and the adaptive connector. The golden finger contact piece and the contact piece plug-in end of the adaptive connector can relatively float in the width direction of the golden finger contact piece and keep contact all the time; the identification guide sleeve is arranged on the connector in a sliding mode, and the sliding direction of the identification guide sleeve is parallel to the width direction of the golden finger contact piece. Compared with the prior art, the beneficial effects of the utility model are that when installation tolerance occurs among a plurality of modules in a high-speed cabinet, the identification guide sleeve with a floating function can ensure that the connector can normally identify when the connector is plugged; while the identification structure realizes floating, the floating function of the contact element is matched, so that the connector is smoothly inserted, and reliable signal transmission is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of connectors, and in particular relates to a floating high-speed connector. Background Art

[0002] At present, high-speed chassis usually install multiple modules, and the module daughter board and the chassis backplane are connected through a high-speed connector. Due to the installation tolerance between the modules, after the module daughter board and the chassis backplane are plugged in through the high-speed connector, the contact between the contacts is prone to deviation, resulting in unreliable signal transmission. In order to achieve reliable signal transmission, it is necessary to put forward floating requirements for high-speed connectors. Contacts are the core parts of high-speed connectors, and traditional contact structures have no floating function. In actual use, for high-speed connectors with non-floating contact parts installed, if the floating function of the high-speed connector is to be realized, a floating sleeve is usually installed on the high-speed connector, and a rigid-flexible board transfer structure is used to achieve the transfer between the high-speed connectors of the module daughter board and the chassis backplane, but this solution has the following problems:

[0003] 1. The rigid-flex board transfer structure can allow tolerance between high-speed connectors, but it affects the signal transmission rate and cannot carry large currents;

[0004] 2. The floating sleeve structure requires installation space, and has problems such as occupying a large space, being heavy, and being unable to be applied to a relatively narrow installation environment. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a floating high-speed connector to solve the problem that the installation tolerance between multiple modules in a high-speed chassis affects the connector signal transmission, thereby increasing the reliability of the connector high-speed signal transmission.

[0006] The purpose of the utility model is to be achieved by adopting the following technical solutions. According to a floating high-speed connector proposed by the utility model, it includes a connector provided with an identification guide sleeve and an adapter connector provided with an identification guide pin, the connector is provided with a gold finger printed circuit board, and a gold finger contact piece is provided at the plug-in end of the gold finger printed circuit board. During the plug-in process between the connector and the adapter connector, the gold finger contact piece and the plug-in end of the contact piece of the adapter connector can float relatively in the width direction of the gold finger contact piece and always keep in contact; the identification guide sleeve is slidably arranged on the connector, and the sliding direction of the identification guide sleeve is parallel to the width direction of the gold finger contact piece. When the connector and the adapter connector are plugged in, the identification guide sleeve and the identification guide pin float relatively in the width direction of the gold finger contact piece, and the identification guide pin can still enter the identification hole of the identification guide sleeve.

[0007] Compared with the prior art, the utility model is beneficial in that: the width of the gold finger contact is increased, so that it has a floating contact conduction function along the width direction. When there is an installation tolerance between multiple modules in the high-speed connector, there will be a position deviation in the width direction between the gold finger contact and the contact of the adapter connector, which may cause the header contact to have poor contact after the header is positioned. The high-speed signal transmission is unstable. This solution increases the width of the gold finger contact and designs it redundantly to ensure that the header contact can still maintain stable and reliable contact when there is floating in the width direction, thereby enhancing the reliability of the connector's high-speed signal transmission; when there is an installation tolerance between multiple modules in the high-speed chassis, the identification guide sleeve with a floating function can ensure that the connector can be normally identified when it is plugged in; while the identification structure realizes floating, the floating function of the contact is cooperated to make the connector plugged in smoothly and realize reliable signal transmission; and when the high-speed connector is in a vibrating environment, the gold finger contact of the connector and the contact of the adapter connector can maintain contact when there is relative displacement in the width direction, thereby ensuring the stability of signal transmission.

[0008] Furthermore, the mating end of the connector is provided with an identification guide sleeve installation groove, the identification guide sleeve is slidably arranged in the identification guide sleeve installation groove, and the inner wall at the opening of the identification guide sleeve installation groove is provided with a stopper to prevent the identification guide sleeve from falling out.

[0009] The identification guide sleeve is slidably arranged in the identification guide sleeve installation groove, so as to realize the floating function of the identification guide sleeve, and the identification guide sleeve can be prevented from falling out by the stop platform.

[0010] Furthermore, the identification guide sleeve installation groove includes an installation part and a floating part which are interconnected, a stop platform is provided on the inner wall of the opening of the floating part, a guide sleeve pressure plate is detachably provided in the installation part, and the identification guide sleeve is installed into the floating part through the installation part.

[0011] By detachably setting the guide sleeve pressure plate, the identification guide sleeve can be easily installed and the identification guide sleeve can be prevented from falling out of the installation position.

[0012] Furthermore, a hole for avoiding the identification guide pin is provided at the bottom of the identification guide sleeve installation groove.

[0013] When the connectors are plugged in, the avoidance hole can avoid interference with the insertion of the identification guide pin into the identification guide sleeve.

[0014] Furthermore, the mating end of the adapter connector is provided with a guide pin mounting hole for inserting the identification guide pin, and the inner side wall of the guide pin mounting hole is provided with a plane matching the root of the identification guide pin.

[0015] The inner wall of the guide pin installation hole matches the outer wall of the identification guide pin, which can control the insertion direction of the identification guide pin and avoid the identification guide pin orientation error, which affects the identification insertion.

[0016] Furthermore, a card slot is provided on the inner side wall of the guide pin installation hole, and a clip which elastically contracts when the identification guide pin is inserted into the guide pin installation hole and is stuck in the card slot after insertion is embedded in the outer wall of the root of the identification guide pin.

[0017] Through the clamping spring and the clamping slot, the identification guide pin can be quickly inserted into the guide pin installation hole and fixed.

[0018] Furthermore, one of the mating end of the connector and the mating end of the adapter connector is provided with a guide pin, and the other is provided with a guide pin hole. When the connector and the adapter connector are mated, the guide pin and the guide pin hole float relative to each other in a direction perpendicular to the mating direction, and the guide pin can still be inserted into the guide pin hole.

[0019] The floating function of the guide structure can be achieved by guiding the guide pins and the guide pin holes.

[0020] Furthermore, the identification hole is a semicircular hole, the plug-in end of the semicircular hole is provided with a chamfer, and the identification guide pin is a semi-cylinder with a pointed portion.

[0021] A chamfer is provided at the opening of the semicircular hole on the identification guide sleeve, which can guide the tip of the identification guide pin to insert into the semicircular hole. If the plug and the socket have floating amount in the width direction, during the plugging process, the identification guide sleeve can be driven to move in the floating part so that the identification guide pin and the identification guide sleeve can be aligned and plugged.

[0022] Furthermore, the housings of the connector and the adapter connector are both provided with a plurality of insulator components, each of which is provided with a plurality of contact groups, each of which includes a single-ended contact and spaced-apart grounding contacts and a contact pair constituting a differential signal.

[0023] The insulator components and contact group module settings in the connector can facilitate assembly and integration of the transmission of various signals.

[0024] Furthermore, in two adjacent contact groups, in the distribution direction of the contact groups, the projection of the contact pairs constituting the differential signal in one of the contact groups falls within the range of the ground contacts of the other contact group.

[0025] The grounding and signal of adjacent groups are staggered to ensure the reliable transmission of high-speed signals.

[0026] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a three-dimensional diagram of an embodiment of a floating high-speed connector of the utility model when plugged in;

[0028] Figure 2 for Figure 1 The embodiment shown is a schematic diagram of plugging together;

[0029] Figure 3 for Figure 1 A perspective view of the middle plug;

[0030] Figure 4 for Figure 3 Schematic diagram of the decomposition of

[0031] Figure 5 for Figure 3 Installation diagram of the middle plug insulator component;

[0032] Figure 6 for Figure 3 The installation diagram of the guide sleeve is shown in the figure;

[0033] Figure 6a for Figure 6 The enlarged schematic diagram of point A in the middle;

[0034] Figure 7 for Figure 3 An exploded schematic diagram of the plug insulator components;

[0035] Figure 8 for Figure 7 Schematic diagram of the gold finger printed circuit board;

[0036] Fig. 9 for Figure 1 A perspective view of the middle socket;

[0037] Fig.10 for Fig. 9 Schematic diagram of the decomposition of

[0038] Fig.10a for Fig.10 The enlarged schematic diagram of point B in the middle;

[0039] Fig.11 for Fig. 9 Installation diagram of the insulator components of the middle socket;

[0040] Fig.12 for Fig.11 Installation diagram of the middle jack fixing block;

[0041] Fig.12a for Fig.12 The enlarged schematic diagram of the center C;

[0042] Figure 12b for Fig.12 The enlarged schematic diagram of point D in the middle;

[0043] Fig.13 for Fig.12 Schematic diagram from another perspective;

[0044] Fig.13a for Fig.13 The enlarged schematic diagram of point E in the middle;

[0045] Fig.14 It is a schematic diagram of the plug insulator component and the socket insulator component before being plugged into each other;

[0046] Fig.15 A schematic diagram of a set of elastic jacks and corresponding gold finger printed circuit boards;

[0047] Fig.16 It is a schematic diagram of a group of elastic jacks located at the extreme position on the left side of the corresponding gold finger printed circuit board;

[0048] Fig.17 It is a schematic diagram of a group of elastic jacks located at the right extreme position of the corresponding gold finger printed circuit board;

[0049] Fig.18 It is a schematic diagram of an A-type contact model formed by a set of elastic sockets and a corresponding gold finger printed circuit board being plugged in;

[0050] Fig.19 It is a schematic diagram of a B-type contact model formed by a set of elastic sockets and a corresponding gold finger printed circuit board being plugged in;

[0051] [Reference Signs]

[0052] 1- Plug,

[0053] 11- plug housing,

[0054] 111-Identify the guide sleeve installation groove,

[0055] 1111-installation part, 1112-floating part, 1113-stop platform,

[0056] 12-plug insulator parts,

[0057] 121-plug insulator,

[0058] 1211-insertion cavity, 1212-insertion groove,

[0059] 122-Adapter jack,

[0060] 123-adapter plate,

[0061] 124-Gold Finger PCB,

[0062] 1241-Golden Finger I, 1242-Golden Finger II, 1243-Golden Finger I, 1244-Golden Finger III, 1245-Golden Finger IV, 1246-Golden Finger II, 1247-Single-Ended Gold Finger, 1248-Transfer Gold Finger,

[0063] 13-Press plate,

[0064] 14-Screw I,

[0065] 15-Guide pin,

[0066] 16-Identify the guide sleeve,

[0067] 17-Guide sleeve pressure plate,

[0068] 18-Screw II,

[0069] 19-Screw III,

[0070] 2-socket,

[0071] 21-socket housing,

[0072] 211-Guide pin hole,

[0073] 212-Guide pin mounting hole,

[0074] 213-Card slot,

[0075] 22-Socket insulator parts,

[0076] 221-Socket insulator,

[0077] 2211-insertion hole, 2212-card hole, 2213-guide protrusion, 2214-avoidance groove, 2215-limiting groove,

[0078] 222-Flexible jack,

[0079] 223-jack fixing block,

[0080] 2231- buckle, 2232- guide groove, 2233- limit table,

[0081] 23- Identify the guide pins,

[0082] 24-circlip,

[0083] 25-Screw IV. DETAILED DESCRIPTION

[0084] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0085] The utility model is a floating high-speed connector embodiment, such as Figures 1 to 19 The connector includes a plug 1 and a socket 2. Figure 1 to Figure 2 As shown, the plug 1 and the socket 2 are respectively fixed on the corresponding module sub-board and the chassis backplane, wherein the plug 1 is fixed on the corresponding board by screws III 19, and the socket 1 is fixed on the corresponding board by screws IV25.

[0086] like Figures 3 to 8 As shown, the plug 1 includes a plug housing 11, a plug insulator component 12, and a pressure plate 13. A plurality of plug insulator components 12 are inserted into the plug housing 11, and the portion of the plug insulator component 12 close to the plug-in end abuts against the step of the inner wall of the plug housing 11 to prevent the plug insulator component 12 from slipping out toward the plug-in end. After the plug insulator component 12 is inserted into the jack housing 11, the rear end of the plug housing 11 away from the plug-in end is fixed with a pressure plate 13 by means of screws 11 14, and the pressure plate 13 abuts against the rear end of the plug insulator component 12 away from the plug-in end to prevent the plug insulator component 12 from slipping out toward the rear end, thereby fixing the plug insulator component 12 in the plug housing 11. The plug-in end of the plug insulator component 12 extends out of the plug-in end of the plug housing 11, and the transfer end of the plug insulator component 12 is located on the side of the plug housing 11.

[0087] like Figures 9 to 13 As shown, the socket 2 includes a socket housing 21 and a socket insulator component 22. A plurality of socket insulator components 22 are inserted into the socket housing 21. The portion of the socket insulator component 22 close to the plug-in end abuts against the step of the inner side wall of the socket housing 21 to prevent the socket insulator component 22 from being dislodged toward the plug-in end. The rear end of the socket insulator component 22 abuts against the module sub-board or the chassis backboard fixed to the socket 2 to prevent the socket insulator component 22 from being dislodged backwards.

[0088] The plug housing 11 and the socket housing 21 are basic parts, and other corresponding parts on the plug 1 and the socket 2 are directly or indirectly mounted on the plug housing 11 and the socket housing 21, which have the functions of basic support and reinforcement of the insulator parts. Multiple plug insulator parts 12 are fixed in the plug housing 1, and multiple socket insulator parts 22 are fixed in the socket housing 2, so that the connector can have the integrated transmission function of differential, power and single-ended signals.

[0089] The shell (including the plug shell 11 and the socket 21) is of standardized design, and the insulator components (including the plug insulator component 12 and the socket insulator component 22) are of modular design. The insulator components can be electrical signal modules such as high-speed modules, power modules, single-ended modules, etc. The installation method of various modules in the corresponding shell is consistent. Different insulator components can be installed in the shell according to needs to realize integrated transmission of different signals.

[0090] like Figures 7 and 8 As shown, the plug end insulator component 12 includes a plug insulator 121, a transfer jack 122, a transfer pressure plate 123, and a gold finger printed circuit board 124. The plug end of the plug insulator 121 is provided with a plug cavity 1211, and the end of the plug insulator 121 away from the plug end is also arranged with a plurality of plug slots 1212 for inserting the gold finger printed circuit board 124, and the plug slots 1212 are connected to the plug cavity 1211.

[0091] The gold finger printed circuit board 124 is a sheet structure, and its plug-in end is distributed in the width direction (a direction perpendicular to the plug-in direction, and the plug-in direction is parallel to the length direction of the gold finger printed circuit board 124) with gold finger I 1241, gold finger II 1242, grounding gold finger I 1243, gold finger III 1244, gold finger IV 1245, grounding gold finger II 1246, and single-ended gold finger 1247. Fig.15 Gold finger I 1241 and gold finger II 1242 form a pair of differential signals, and gold finger III 1244 and gold finger IV 1245 form a pair of differential signals, wherein the width of the signal gold finger (including the differential gold finger pair forming the differential signal and the single-ended gold finger 1247) is smaller than that of the ground gold finger.

[0092] A plurality of transfer gold fingers 1248 are distributed on one side of the width direction of the gold finger printed board 124, and the extension direction of the transfer gold fingers 1248 is perpendicular to the extension direction of the gold fingers at the plug-in end. The transfer gold fingers 1248 are provided with transfer sockets 122. The transfer gold fingers 1248 are connected to the corresponding gold fingers at the plug-in end through the corresponding strip line structure inside the gold finger printed board 124.

[0093] After the gold finger printed board 124 is inserted into the plug slot 1212 of the plug insulator 121, the gold finger of the plug end of the gold finger printed board 124 is located in the plug cavity 1211. Then the adapter plate 123 is fixed to the end of the plug insulator 121 away from the plug end to wrap and protect the gold finger printed board 124. The side wall of the adapter plate 123 is provided with a plurality of through holes for the adapter socket 122 to extend out, which is used to connect the adapter socket 122 with the corresponding printed board. In other embodiments, other structures can be used to connect with the adapter gold finger 1248, for example, the adapter gold finger 1248 can be directly connected with the corresponding printed board using a wire.

[0094] In the cross section perpendicular to the arrangement direction of the gold finger printed circuit board 124, the cross sections of the plug insulator 121 and the adapter plate 123 are both L-shaped. After the two are docked and fixed, the edges of the gold finger printed circuit board 124 are wrapped. The plug insulator 121 and the adapter plate 123 provide a fixed protection for the gold finger printed circuit board 124, protecting the gold finger printed circuit board 124 from damage. The plug insulator 121 and the adapter plate 123 are made of LCP liquid crystal polymer, which can effectively reduce the loss during signal transmission.

[0095] The plug-in end of the adapter jack 122 is a fisheye structure, and the end away from the plug-in end is a tuning fork structure. The tuning fork structure of the adapter jack 122 is clamped on the corresponding adapter gold finger 1248 and is connected to the gold finger printed circuit board 124. The fisheye structure of the adapter jack 122 is used to terminate the corresponding printed circuit board.

[0096] The gold finger printed circuit board 124 is formed by a conventional printed circuit board processing method, and a strip line structure is used inside the gold finger printed circuit board 124. The adapter jack 122 is formed by integrally stamping the strip material through a progressive die to form a sheet contact structure.

[0097] like Figure 12 to Figure 13 As shown, the socket insulator component 22 includes a socket insulator 221 and an elastic socket 222. A plurality of elastic socket groups are inserted on the socket insulator 221, and each elastic socket group includes a plurality of elastic sockets 222. The elastic sockets 222 on each elastic socket group are arranged on a socket fixing block 223. A plurality of elastic sockets 222 are distributed in the length direction of the socket fixing block 223.

[0098] A plurality of socket fixing blocks 223 are inserted on the socket insulator 221 , and the distribution direction of the socket fixing blocks 223 on the socket insulator 221 is perpendicular to the distribution direction of the elastic sockets 222 on the socket fixing blocks 223 .

[0099] The elastic socket 222 is formed by integral stamping of a strip through a progressive die, and is a sheet contact structure. A plurality of elastic sockets 222 are arranged on the socket fixing block 223 at unequal intervals. The middle part of the elastic socket 222 is fixed to the socket fixing block 223, the plug-in end of the elastic socket 222 is a bent spring structure, and the end of the elastic socket 222 away from the plug-in end is a fisheye structure. The fisheye structure of the elastic socket 222 is terminated with a corresponding printed circuit board, and the spring structure cooperates with the gold finger printed circuit board 124 at the plug end.

[0100] The jack fixing block 223 is inserted into the insertion hole 2211 of the socket insulator 221. Buckles 2231 are provided at both ends of the length direction of the jack fixing block 223. Correspondingly, the two side walls of the insertion hole 2211 in the length direction are provided with clamping holes 2212. After the jack fixing block 222 is inserted into place, the buckles 2231 are clamped in the clamping holes 2212, so that the jack fixing block 223 is fixed in the socket insulator 221.

[0101] The side wall of the jack fixing block 223 in the length direction is provided with guide grooves 2232 , and correspondingly, the inner wall of the insertion hole 2211 is provided with guide protrusions 2213 to guide the jack fixing block 223 to be inserted into the insertion hole 2211 .

[0102] One side wall of the insertion hole 2211 is provided with an avoidance groove 2214 corresponding to the elastic hole 223. After the elastic hole 222 is matched with the gold finger printed circuit board 124, the spring structure of the elastic hole 222 undergoes elastic deformation and is firmly squeezed on the corresponding gold finger. The avoidance groove 2214 provides an avoidance space for the deformation of the elastic hole 222.

[0103] A limiting platform 2233 is provided on one of the side walls in the length direction of the jack fixing block 223, and correspondingly, a limiting groove 2215 is provided on the side wall of the insertion hole 2211, and the limiting groove 2215 penetrates the wall of the insertion hole 2211. When inserting the jack fixing block 223, the limiting platform 2233 is inserted into the limiting groove 2215 along the insertion direction, and when the limiting platform 2233 is against the bottom of the limiting groove 2215, the jack fixing block 223 is inserted into place, and the jack fixing blocks 222 are inserted into the socket insulator 221 in turn. Through the matching of the limiting groove 2215 and the limiting platform 2233, the positions of each jack fixing block 223 in the insertion direction are kept consistent.

[0104] The socket insulator 221 and the socket fixing block 223 support the elastic socket 222 and provide fixing protection for the elastic socket 222. The socket insulator 221 and the socket fixing block 223 are made of LCP liquid crystal polymer, which can effectively reduce the loss during signal transmission.

[0105] After the plug and the socket are plugged together, the contact parts (including the gold finger printed board 124 and the elastic socket 222) inside the insulator parts (including the plug insulator parts 12 and the plug insulator parts 22) cooperate as follows: Fig.15 The spring structure of the elastic socket 222 is overlapped on the corresponding gold finger to achieve conduction.

[0106] The contact members in the high-speed connector of the utility model are basic conductors for signal transmission, including the adapter jack 122, the gold finger contact members on the gold finger printed board 124 (including gold finger I 1241, gold finger II 1242, grounding gold finger I 1243, gold finger III 1244, gold finger IV 1245, grounding gold finger II 1246, and single-end gold finger 1247), and the elastic jack 222. The spring structure of the elastic jack 222 is overlapped with the gold finger corresponding to the gold finger printed board 124, the adapter jack 122 is connected to the gold finger printed board, and is terminated with the corresponding printed board, and the elastic jack 222 is terminated with the corresponding printed board, so that the signals on the two printed boards are transmitted through the high-speed connector.

[0107] The jack fixing block 223 corresponds to the gold finger printed board 124 one by one. After the plug 1 and the socket 2 are plugged in place, the elastic jack 222 on the same jack fixing block 223 is at the limit floating position on the corresponding gold finger printed board 124 as shown in FIG. Figure 16 to Figure 17 As shown, each elastic socket 222 floats relative to the width direction of the gold finger printed board 124. Each gold finger at the plug-in end of the gold finger printed board 124 is wider than the corresponding elastic socket 222. If the position of the elastic socket 222 in the width direction after plugging has a certain deviation, the deviation range is as follows: Figure 16 to Figure 17 Within the left and right limit ranges shown, it can be ensured that the elastic socket 222 is still in contact with the contact piece corresponding to the gold finger printed circuit board 124. According to mechanical simulation calculations, the floating amount of the elastic socket 222 relative to the gold finger printed circuit board 124 in the width direction is ±0.5mm. Within this floating range, the elastic socket 222 can be in normal contact with the corresponding gold finger, and the high-speed transmission performance is reliable.

[0108] The elastic sockets 222 are in contact with the corresponding gold fingers respectively, and the same group of elastic sockets 222 connected with the same gold finger printed board 124 includes a signal socket (including a differential socket pair for connecting with a differential gold finger pair, a single-ended socket for connecting with a single-ended gold finger finger), a grounding socket (for connecting with a corresponding grounding gold finger finger), and the differential socket pair includes two elastic sockets 222. The microstrip line or stripline calculation formula is adopted, and the high-speed signal electromagnetic simulation is used to determine the differential line width, the line distance between the differential lines, the spacing between the differential gold fingers and the grounding gold fingers, and the structure of the elastic socket, so as to ensure the high-speed performance of the contact under the extreme floating condition.

[0109] like Figure 18 to Figure 19 The figure shows the insertion of two adjacent gold finger printed boards 124 and the elastic sockets 222 on the corresponding socket fixing blocks 223. The arrangement positions of the gold fingers on the two adjacent gold finger printed boards 124 are different, and correspondingly, the arrangement positions of the elastic sockets 222 on the socket fixing blocks 223 are also different. Fig.18The figure shows an A-type contact model formed by the gold finger printed circuit board 124 and the elastic socket 222 on the corresponding socket fixing block 223. Fig.19 The figure shows a B-type contact model formed after the gold finger printed circuit board 124 is plugged into the elastic socket 222 on the corresponding socket fixing block 223. After the high-speed connector is plugged in, it includes an A-type contact model and a B-type contact model. The A-type contact model and the B-type contact model are arranged at intervals in the high-speed connector.

[0110] In the same direction, in the A-type contact model, the arrangement of the gold fingers is a single-ended gold finger, a grounding gold finger, two differential signal gold fingers, a grounding gold finger, and two differential signal gold fingers; in the B-type contact model, the arrangement of the gold fingers is a single-ended gold finger, two differential signal gold fingers, a grounding gold finger, two differential signal gold fingers, and a grounding gold finger. The plug-in model formed by two adjacent gold finger printed boards 124 and the elastic socket group adopts the A-type contact model and the B-type contact model respectively, so that the differential line is close to the ground line of the adjacent column, so as to reduce the crosstalk between the differential pairs of the adjacent columns.

[0111] In order to realize the floating function of the connector as a whole, it is necessary to ensure that the guiding and identifying structure of the connector also has the floating function. A guiding pin 15 is provided on the plugging end face of the plug housing 11, and a guiding pin hole 211 is provided on the plugging end face of the socket housing 21. The guiding pin 15 is a cylindrical body with a tip, and the guiding pin hole 211 is a waist-shaped hole. The length direction of the guiding pin hole 211 is parallel to the length direction of the socket fixing block 223, that is, the length direction of the guiding pin hole 211 is parallel to the distribution direction of the elastic sockets 222 in the same elastic socket group. The guiding pin hole 211 is provided at both ends of the length direction of the socket 2, and the length direction of the guiding pin hole 211 is parallel to the width direction of the plug, so that when the plug 1 is plugged in with the socket 2, during the plugging and guiding process of the plug 1 and the socket 2, the guiding pin 15 can float in the length direction of the guiding pin hole 211, ensuring that during the plugging process of the connector, the guiding pin 15 has a floating amount of ±0.5mm along the width direction of the connector, realizing the floating of the connector guiding structure, and avoiding interference with the floating of the elastic socket 222 and the corresponding gold finger. The guide pin hole 211 may also be replaced by a hole of other shapes, such as a rectangular hole.

[0112] The plug-in end face of the plug housing 11 is provided with an identification guide sleeve installation groove 111, and the identification guide sleeve installation hole 111 includes a mounting portion 1111 and a floating portion 1112 that are interconnected and distributed in the width direction of the plug. A threaded hole is provided at the bottom of the mounting portion 1111, and the mounting portion 1111 is used to install the guide sleeve pressure plate 17. The guide sleeve pressure plate 17 is provided with a through hole. After the guide sleeve pressure plate 17 is nested in the mounting portion 1111, the through hole on the guide sleeve pressure plate 17 is aligned with the threaded hole at the bottom of the mounting portion 1111, and a screw II 18 is used to pass through the through hole on the guide sleeve pressure plate 17 and then screwed into the threaded hole to fix the guide sleeve pressure plate 17 in the identification guide sleeve installation groove 111.

[0113] The floating portion 1112 extends in the width direction of the plug 1, and a stopper 1113 is provided on both sides of the opening of the floating portion 1112. An identification guide sleeve 16 is movably provided in the floating portion 1112. In this embodiment, the identification guide sleeve 16 is an octagon, and the two opposite side walls of the identification guide sleeve 16 are slidably matched with the two side walls of the floating portion 1112. The spacing between the two opposite side walls of the identification guide sleeve 16 is smaller than the spacing between the two stopper 1113, so as to prevent the identification guide sleeve 16 from slipping out of the floating portion 1112.

[0114] The identification guide sleeve 16 is provided with a semicircular hole, and correspondingly, the socket housing 21 is provided with an identification guide pin 23, which is a semi-cylinder with a pointed portion, matching the semi-circular hole on the identification guide sleeve 16. Only when the plug 1 and the socket 2 are plugged in the correct orientation, the identification guide pin 23 can be inserted into the identification guide sleeve 16, and can they be smoothly plugged in, thereby preventing the plug 1 and the socket 2 from being plugged in incorrectly. In addition to using a semicircular hole, the identification hole on the identification guide sleeve 16 can also be in other shapes, such as an isosceles triangle, and correspondingly, the identification guide pin 23 uses a cylinder of a corresponding shape, as long as the two are guaranteed to be plugged in the correct orientation. The shape of the identification guide sleeve 16 can also be replaced by other shapes, such as a hexagon, as long as the identification guide sleeve 16 can be restricted to the plug in a suitable orientation, thereby ensuring that the orientation of the identification hole is correct. The bottom of the floating portion 1112 is provided with a waist-shaped hole to provide a space for the identification guide pin 23 to avoid, and the waist-shaped hole can also be replaced by a hole of other shapes, such as a rectangular hole.

[0115] The maximum outer diameter of the identification guide sleeve 16 is equal to or smaller than the inner diameter of the mounting portion 1111. When installing the identification guide sleeve 16, first insert the identification guide sleeve 16 into the mounting portion 1111, then move the identification guide sleeve 16 to the floating portion 1112, and then install the guide sleeve pressure plate 17 in the mounting portion 1111 to limit the identification guide sleeve 16 to the floating portion 1112.

[0116] In order to control the orientation of the identification guide pin 23 to match the identification hole, the guide pin installation hole 212 on the socket housing 21 for installing the identification guide pin 23 is a square, the root of the identification guide pin 23 for inserting into the guide pin installation hole 212 is a regular octagon, the outer wall of the root of the identification guide pin 23 is embedded with a retaining spring 24, and the retaining spring 24 protrudes out of the outer wall of the identification guide pin 23 when it is not under force. The inner wall of the guide pin installation hole 212 is provided with a card slot 213 matching the retaining spring 24. When the root of the identification guide pin 23 is inserted into the guide pin installation hole 212, four side walls of the root of the identification guide pin 23 are parallel to the inner wall of the guide pin installation hole 212, and the identification guide pin 23 is inserted into the guide pin installation hole 212 at a certain angle. At this time, the retaining spring 24 is compressed. After the identification guide pin 23 is installed in place, the retaining spring 24 returns to its original state and is stuck in the retaining groove 213, so that the identification guide pin 23 is fixed. The identification guide pin 23 can also be fixed in the guide pin mounting hole 212 by forced installation. The guide pin mounting hole 212 can also adopt other shapes, such as an isosceles triangle, and the root of the identification guide pin 23 is also an isosceles triangle, as long as the orientation of the identification column (semicircular column, isosceles triangle column, etc.) on the identification guide pin 23 is correct.

[0117] When the plug 1 and the socket 2 are plugged in, when the two are in the correct plugging orientation, the identification guide pin 23 is inserted into the identification guide sleeve 16. The semicircular hole opening on the identification guide sleeve 16 is provided with a chamfer to guide the tip of the identification guide pin 23 to be inserted into the semicircular hole. If the plug and the socket have a floating amount in the width direction, during the plugging process, the identification guide sleeve 16 can be driven to move in the floating portion 112, so that the identification guide pin 23 and the identification guide sleeve 16 can be aligned and plugged in.

[0118] The high-speed connector adopts a replaceable modular design. Multiple modular insulator components are installed in the shells of the plug and socket. Multiple modular contact groups are set in each insulator component (including modular gold finger printed circuit boards and modular elastic socket groups). Each contact group includes a single-ended contact, spaced ground contacts, and contact pairs that constitute differential signals, where the contacts are gold fingers or elastic sockets. Therefore, the modular high-speed connector can integrate the transmission of differential, power, single-ended and other signals. In two adjacent contact groups, in the distribution direction of the contact groups, the projection of the contact pairs that constitute the differential signal in one contact group falls within the range of the ground contacts of the other contact group, ensuring the reliable transmission of high-speed signals.

[0119] In summary, the gold fingers on the plug-in end of the gold finger printed circuit board 124 have a certain width, allowing the elastic socket 222 to have a certain floating range in the width direction; the utility model determines the width of each gold finger and the elastic socket (including the signal socket and the grounding socket) in the gold finger printed circuit board, the distance between the signal pins (including the signal gold fingers and the signal socket), and the distance between the signal pins and the grounding pins (including the grounding gold fingers and the grounding socket) through mechanical simulation, which can ensure that the contact has a floating amount of ±0.5mm along the width direction; the differential line width, the line spacing between the differential lines, and the spacing between the signal pins and the grounding pins are determined through electromagnetic simulation, and a non-equidistant spacing design is adopted to ensure that within the specified floating range, the contacts have good high-speed transmission performance; and the plug 1 and the socket 2 have identification and guiding structures that match each other and have floating functions, which cooperate with the floating of the contacts to realize the floating of the connector as a whole.

[0120] In other embodiments of the utility model, the gold finger can be replaced by other forms of contacts, for example, a sheet structure with a certain width is also adopted, and the elastic socket floats in the width direction of the sheet structure; the elastic socket can also be replaced by contacts of other shapes, for example, a waist-shaped hole-shaped contact can be adopted, and the contact piece adapted thereto is a needle-shaped contact piece, so that the needle-shaped contact piece floats inside the waist-shaped hole-shaped contact piece.

[0121] In other embodiments of the present invention, the structures on the plug 1 and the socket 2 can be interchanged.

[0122] In other embodiments of the utility model, elastic buckles can be provided on both sides of the identification guide sleeve 16, and only a floating part is provided in the identification guide sleeve installation groove 111. When the identification guide sleeve 16 is nested in the identification guide sleeve installation groove 111, the elastic buckles are contracted. After nesting, the elastic buckles return to their original state, and the stop platform 1113 rests on the elastic buckles to prevent them from falling out.

[0123] In other embodiments of the present invention, relatively floating contacts may be used in other types of connectors, not limited to high-speed connectors.

[0124] In other embodiments of the present invention, the floating identification and guiding structure of the present invention can be used in other types of connectors, not limited to high-speed connectors.

[0125] In other embodiments of the utility model, the identification guide sleeve 16 is slidably arranged on the outside of the side wall of the plug 1, and the identification guide sleeve 16 is slidably connected to the side wall of the plug 1 by means of a slider and a slide rail, and the identification hole faces the plug end. The identification guide pin 23 passes through the identification hole and enters the space on the rear side of the identification guide sleeve 16. This structure can omit the avoidance hole and is applied to a plug 1 with a thinner thickness.

[0126] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A floating high-speed connector, comprising a connector provided with an identification guide sleeve (16) and an adapter connector provided with an identification guide pin (23), characterized in that: The connector is provided with a gold finger printed circuit board (124), and a gold finger contact piece is provided at the plug-in end of the gold finger printed circuit board (124). During the plug-in process between the connector and the adapter connector, the gold finger contact piece and the plug-in end of the contact piece of the adapter connector can float relatively in the width direction of the gold finger contact piece and always keep in contact; the identification guide sleeve (16) is slidably arranged on the connector, and the sliding direction of the identification guide sleeve is parallel to the width direction of the gold finger contact piece. When the connector and the adapter connector are plugged in, the identification guide sleeve (16) and the identification guide pin (23) float relatively in the width direction of the gold finger contact piece, and the identification guide pin (23) can still enter the identification hole of the identification guide sleeve (16).

2. A floating high-speed connector according to claim 1, characterized in that: The mating end of the connector is provided with an identification guide sleeve installation groove (111), the identification guide sleeve (16) is slidably arranged in the identification guide sleeve installation groove (111), and the inner wall at the opening of the identification guide sleeve installation groove (111) is provided with a stopper (1113) for preventing the identification guide sleeve (16) from falling out.

3. A floating high-speed connector according to claim 2, characterized in that: The identification guide sleeve installation groove (111) comprises a mounting portion (1111) and a floating portion (1112) which are interconnected. A stop platform (1113) is provided on the inner wall of the opening of the floating portion (1112). A guide sleeve pressing plate (17) is detachably provided in the mounting portion (1111). The identification guide sleeve (16) is installed into the floating portion (1112) via the mounting portion (1111).

4. A floating high-speed connector according to claim 2, characterized in that: The bottom of the identification guide sleeve installation groove (111) is provided with a hole for avoiding the identification guide pin (23).

5. A floating high-speed connector according to claim 1, characterized in that: The mating end of the adapter connector is provided with a guide pin installation hole (212) for inserting an identification guide pin (23), and the inner side wall of the guide pin installation hole (212) is provided with a plane matching the root of the identification guide pin (23).

6. A floating high-speed connector according to claim 5, characterized in that: The inner side wall of the guide pin installation hole (212) is provided with a clamping groove (213), and the outer wall of the root of the identification guide pin (23) is embedded with a clamping spring (24) which elastically contracts when the identification guide pin (23) is inserted into the guide pin installation hole (212) and is clamped in the clamping groove (213) after insertion.

7. A floating high-speed connector according to claim 1, characterized in that: One of the mating end of the connector and the mating end of the adapter connector is provided with a guide pin (15), and the other is provided with a guide pin hole (211); when the connector and the adapter connector are mated, the guide pin (15) and the guide pin hole (211) are relatively floating in a direction perpendicular to the mating direction, and the guide pin (15) can still be inserted into the guide pin hole (211).

8. A floating high-speed connector according to claim 1, characterized in that: The identification hole is a semicircular hole, the plug-in end of the semicircular hole is provided with a chamfer, and the identification guide pin (23) is a semi-cylinder with a pointed portion.

9. A floating high-speed connector according to claim 1, characterized in that: The housings of the connector and the adapter connector are both provided with a plurality of insulator parts, each of which is provided with a plurality of contact member groups, each of which includes a single-ended contact member and spaced-apart grounding contacts and a contact member pair constituting a differential signal.

10. A floating high-speed connector according to claim 9, characterized in that: In two adjacent contact groups, in the distribution direction of the contact groups, the projection of the contact pairs constituting the differential signal in one contact group falls within the range of the ground contacts in the other contact group.

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