CN116931672A - Adapter units, adapter modules and electronic equipment - Google Patents

Abstract

A switching unit, a switching module and an electronic device. The switching unit comprises a bracket structure and a plug-in structure arranged on the bracket structure; the support structure is used for expanding the mainboard where the switching unit is positioned and can be connected with the plug-in card; the plug-in structure comprises a single board assembly and a floating assembly; the single board assembly comprises a first single board, a flexible cable and a second single board which are connected in sequence; the first single board is used for connecting the plug-in card; the second single board is used for connecting with the mainboard connector; the second veneer is in floating connection with the support structure through the floating assembly. The switching unit can be applied to a scene of realizing double or multiple plug with a main board, and meets the high tolerance requirement of a connector.

Description

Adapter units, adapter modules and electronic equipment

Technical field

The present application relates to the field of communication technology, and in particular to a transfer unit, a transfer module and an electronic device.

Background technique

As there are more and more multi-level synchronous plug-in scenarios for server products, higher requirements are placed on the precise coordination of modules and connectors. Take the graphics processing unit (GPU) as an example. Currently, the graphics processor is often fixed to the server through a riser. However, the motherboard and the graphics processor are still connected through cables. Later evolution and operation Maintenance is more difficult. When the riser card is directly connected to the connector on the motherboard, there is a docking tolerance. In addition, the dual-plug mode in which two image processors share one riser card will increase the docking tolerance. When the docking tolerance exceeds the tolerance capability of the connector, it will cause problems such as mispin or damage to one of the connectors.

It can be seen that the current installation form of modules and connectors can no longer meet the high-density plug-in requirements of dual-plug boards.

Contents of the invention

This application provides a transfer unit, transfer module and electronic equipment, which can improve the precision of input and output equipment in dual plug mode.

In the first aspect, a transfer unit is provided that can be dual-plugged into the mainboard connector of the server, thereby realizing a multi-level synchronous plug-in scenario between the plug-in card and the mainboard of the server. The transfer unit includes a bracket structure and a plug-in structure. The bracket structure has at least two installation stations, and each installation station can correspondingly install a plug-in card. On the one hand, the plug-in structure can be connected with the plug-in card, and on the other hand, it can be plugged in with the motherboard connector on the motherboard, thereby realizing the connection between the plug-in card and the motherboard. Specifically, the plug-in structure includes single-board components and floating components. Wherein, the single board assembly includes a first single board, a second single board and a flexible cable connected between the first single board and the second single board, the first single board, the flexible cable and the second single board. The first single board can be fixed to the bracket structure, and is used to connect the plug-in card. Due to the existence of the flexible cable, the second board can move in the first direction relative to the first board. The second single board realizes floating connection between the floating component and the bracket structure. There is a linkage relationship between the floating component and the second single board. When the second single board is adjusted and moved in the first direction, the floating component can provide floating support for the second single board. When the plug-in structure is plugged into the motherboard connector, if the second single board cannot be accurately plugged into the corresponding mainboard connector, the second single board can be adjusted to float relative to the bracket structure until the second single board can be plugged into the mainboard connector. The directions correspond to each other to achieve precise insertion. Especially for some dual-plug scenarios, when a second single board cannot be accurately plugged into the corresponding mainboard connector, adjust the second single board so that the second single board and its corresponding mainboard connector are aligned in the plugging direction. Accurate, achieving precise plugging. The above-mentioned transfer unit can be used in multi-level synchronous plug-in scenarios where plug-in cards are plugged into motherboards, meeting the high tolerance requirements of connectors and adapting to more application scenarios.

In the plug-in structure, in order to connect the plug-in card and the motherboard connector, the first single board is provided with a plug-in card connector for connecting the plug-in card.

In one possible implementation manner, the fixed bracket may specifically include a fixed bracket and a fixed beam. The fixed bracket is used to install plug-in cards. Specifically, at least two plug-in cards can be installed. The fixed crossbeam is fixed to the fixed bracket, and the fixed crossbeam has multiple mounting surfaces. Make the mounting surface correspond to the plug-in structure one-to-one, that is, each installation surface corresponds to a plug-in structure. Between the mounting surface and the plug-in structure, the first single board is disposed on the mounting surface.

Specifically, the floating component includes a floating piece and at least one elastic group. The floating component is fixedly connected to the second single board, and the floating component can move together with the second single board. The elastic member is used to connect the floating member and the bracket structure. The expansion and contraction direction of the elastic member is perpendicular to the insertion direction of the second single board and the mainboard connector. It can provide elastic support for the floating member to move and reset, thereby realizing the second single board and the mainboard connector. Floating connections between support structures. In order to control the movement of the floating member, the number of elastic members can be an even number. Taking the insertion direction of the second single board and the mainboard connector as a reference, an even number of elastic members are arranged on both sides of the floating member in a symmetrical manner. One end of each elastic member is connected to the bracket structure, and the other end is connected to the floating member. A connection in which a floating member is movable relative to a bracket assembly. The elastic member here can be specifically a spring, or it can also be other stretchable structures.

In order to facilitate the floating component to connect to the elastic component, a receiving groove is provided at the position where the floating component is used to connect to the elastic component. The extension direction of the accommodating groove is parallel to the expansion and contraction direction of the elastic member, so that the elastic member can be accommodated in the accommodating groove.

In addition, in order to connect the elastic component, a fixing plate is provided on the bracket assembly, one end of the elastic component is fixed to the floating component, and the other end of the elastic component is fixed to the fixing plate. Specifically, along the expansion and contraction direction of the elastic member, there is a gap between the floating member and any fixed plate, and the gap is specifically 1±0.15mm. Such a structure can enable the floating member to move a distance of 2±0.3 mm in the first direction relative to the bracket structure.

In one possible implementation method, a limiting protrusion can also be provided on the bracket structure, and a limiting chute can be provided on the floating member of the floating assembly. The extension direction of the limiting chute is parallel to the first direction. When the floating component is installed on the bracket structure, the limiting protrusion is located in the limiting chute. When the floating member moves along the first direction relative to the bracket structure, the limiting slide groove can slide relative to the limiting protrusion.

The floating member is provided with a guide pin, and the second single plate is provided with a guide hole, and the guide hole can allow the guide pin to pass through. The cooperation between the guide pin and the guide hole can guide the connection between the floating component and the second single board.

In a second aspect, a switching module is provided. The switching module specifically includes a plug-in card and any switching unit in the above technical solutions. The plug-in card is installed on the bracket structure, and the plug-in card corresponds to the plug-in structure one-to-one; between the corresponding plug-in card and the plug-in structure, the plug-in card is connected to the first single board. The plug-in card here can be any one of an image processor, a peripheral component interconnect express (PCIe) card, a plug-in card that supports the NVLink protocol, and a high capacity communication system (HCCS) card. .

In a third aspect, an electronic device is provided. The electronic device includes the above-mentioned switching module, and the switching module includes a switching unit. Among them, the transfer unit is used to realize the functions of the transfer unit provided by the above technical solution.

In some possible implementation methods, the electronic device may specifically be a server. The electronic device may also include a chassis and a motherboard. The motherboard and the transfer module are both arranged in the chassis, and the transfer module is specifically arranged at one end of the chassis. Specifically, the transfer module can be installed at the rear end of the chassis so as not to occupy the front end space of the chassis. The mainboard is provided with at least one connector group, and one connector group in the at least one connector group is used to plug in a corresponding transfer module. Corresponding to the two second single boards in the transfer module, each connector group includes two mainboard connectors, so that when a set of mutually corresponding connector groups is plugged into the transfer module, each second The single board can be precisely mated with a motherboard connector.

Description of the drawings

Figures 1a to 1c are schematic structural diagrams of the connection between the module and the server motherboard in the prior art;

Figure 2a is a schematic structural diagram of a switching module provided by an embodiment of the present application;

Figure 2b is a schematic structural diagram of a transfer module plugged into a motherboard connector according to an embodiment of the present application;

Figure 3 is a schematic structural diagram of a transfer unit provided by an embodiment of the present application;

Figures 4a and 4b are schematic structural diagrams of a bracket structure in a transfer unit provided by an embodiment of the present application;

Figure 4c is a schematic structural diagram of a switching module provided by an embodiment of the present application;

Figure 5 is a schematic structural diagram of a transfer unit provided by an embodiment of the present application;

Figures 6a and 6b are schematic structural diagrams of a transfer unit plugged into a motherboard connector according to an embodiment of the present application;

Figures 7a to 7d are schematic structural diagrams of a single board assembly in a transfer unit provided by an embodiment of the present application;

Figure 8 is a partial structural schematic diagram of a switching unit provided by an embodiment of the present application;

Figure 9 is a schematic structural diagram of a floating member in a transfer unit provided by an embodiment of the present application;

Figures 10a and 10b are schematic diagrams of the connection structure between the floating member and the fixed plate in the transfer unit provided by the embodiment of the present application;

Figure 11 is a partial structural schematic diagram of a switching unit provided by an embodiment of the present application;

Figures 12a to 12c are partial structural schematic diagrams of a transfer unit provided by embodiments of the present application;

Figure 13a is a schematic structural diagram of a bracket structure in a transfer unit provided by an embodiment of the present application;

Figure 13b is a schematic structural diagram of a switching module provided by an embodiment of the present application;

Figure 14 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.

Reference signs:

1’-Server box; 11’-Server motherboard; 12’-Server connector; 2’-Adapter card;

21’-Rise card gold finger; 3’-Module; 4’-Cable; 1-Bracket structure;

11-Fixed bracket; 12-Fixed beam; 121-Fixed plate; 2-Plug-in structure;

2a-Plug-in structure; 2b-Plug-in structure; 21-Single board component; 21a-Single board component;

21b-Single board assembly; 211-First single board; 212-Second single board; 2121-Guide hole;

213-Flexible cable; 22-Floating component; 22a-Floating component; 22b-Floating component;

221-Floating part; 222-Elastic part; 3-Threaded hole; 4-Guide pin;

5-First screw; 6-Second screw; 10-Transfer unit; 20-Plug-in card;

20a-plug-in card; 20b-plug-in card; 100-transfer module; 200-chassis;

201-motherboard; 202-motherboard connector; 203-cooling fan.

Detailed ways

At present, servers generally require an adapter card to connect the function expansion card to the server. As shown in Figures 1a and 1b, two modules 3' (the two modules 3' are stacked in Figure 1b, only the top module 3' is shown) are installed to the server box 1 through an adapter card 2' 'The module 3' is connected to the server motherboard 11' through a cable 4' on the rear or front side. With the increasing number of multi-level synchronous plug-in scenarios (that is, a scenario in which an adapter card 2' is equipped with two or more modules 3' and the server motherboard 11' to achieve dual plug-in at the same time), the need for modules and connectors is increasing. The precision coordination puts forward higher requirements. The above-mentioned method of connecting the module and the motherboard through cables has problems with later evolution and operation and maintenance, and cannot meet the demand for precise coordination. To this end, as shown in Figure 1c, a server connector 12' can be set on the server motherboard 11', and the module 3' can be loaded onto the adapter card 2', through the adapter card gold finger on the adapter card 2' 21' is plugged into the server connector 12' to realize the connection between the module 3' and the server motherboard 11'. This connection method requires high structural tolerances. For the dual plug-in mode of double golden fingers, two or more modules 3' share a riser card 2' and are plugged into two server connectors 12' on the server motherboard 11'. It is easy for the docking tolerance to exceed the structural tolerance. Mistaken stitches or damage may occur due to the scope.

Based on this, embodiments of the present application provide a transfer module that can achieve precise dual plugging with a motherboard connector and can meet the tolerance requirements of the dual plugging mode.

The present application will be described in further detail below with reference to the accompanying drawings.

An embodiment of the present application provides a switching module 100. The structure of the switching module 100 can be referred to as shown in Figure 2a. The switching module 100 includes a switching unit 10. The switching unit 10 can be plugged into two or more plug-in cards 20. Figure 2a takes the switching module 100 as being able to plug into two plug-in cards 20 as an example for illustration. . The plug-in card 20 includes an image processor, a peripheral component interconnect express (PCIe) card, a plug-in card that meets the NVLink protocol, a high capacity communication system (HCCS) card, and an open computing platform. OCP) cards and other cards are used to extend the functions of the motherboard and are connected to the motherboard in a plug-in manner through a connector.

The two plug-in cards 20 can achieve dual plug-in connections with two mainboard connectors in an electronic device (such as a server) through the adapter unit 10 respectively, where the mainboard connector is used to indicate a connector that couples the plug-in card to the mainboard. The adapter unit 10 includes a bracket structure 1 and two plug-in structures 2 . The bracket structure 1 can be used to support and install two plug-in cards 20 , and the two plug-in structures 2 are used to realize dual plug-in cooperation between the two plug-in cards 20 and the two motherboard connectors.

For example, FIG. 2b shows a schematic diagram of a state in which the adapter module 100 is plugged into the mainboard connector 202 of the electronic device. Among them, the bracket structure 1 of the transfer unit 10 is installed with two plug-in cards 20 , and the two plug-in structures 2 are arranged on the bracket structure 1 . The two plug-in cards 20 can be specifically plug-in cards 20a and 20b, and the two plug-in structures 2 are respectively the plug-in structure 2a and the plug-in structure 2b. Two mainboard connectors 202 are provided on the mainboard 201, namely the mainboard connector 202a and the mainboard connector 202b. The plug-in structure 2a can be plugged into the mainboard connector 202a, and the plug-in structure 2b can be plugged into the mainboard connector 202b. For convenience of description, it is assumed that the plugging direction of the plugging structure 2 and the motherboard connector 202 is the third direction Z. The plug-in card 20 here may be an image processor, or may be a fast peripheral component interconnect card, a plug-in card supporting the NVLink protocol, a large-capacity communication system card, or other cards. Among them, NVLink is On-chip interconnect protocol provided. It should be understood that when the plug-in cards 20 are of different types, the type of the mainboard connector 202 of the electronic device needs to match the plug-in card 20 . The motherboard connector 202 is, for example, a Gen-z connector. According to the size, the specifications of the Gen-z connector may be 1C, 2C or other specifications, which are not limited here. Among them, the 1C specification connector serves as the universal basis for all other sizes. The 1C form factor connector supports up to 80W of 12V main power and up to 3.3Vaux power, a set of sideband and management pins, and up to eight high-speed differential pairs. The 2C form factor connector builds on the 1C form factor connector and provides up to 16 additional high-speed differential pairs.

As shown in the adapter unit 10 in Figure 3, two plug-in structures 2 are provided on the bracket structure 1. The two plug-in structures 2 are arranged along the second direction Y, and the plane of any one plug-in structure 2 is parallel to the plane formed by the first direction X and the third direction Y. Here, the first direction X, the second direction Y, and the third direction Z are perpendicular to each other, and the three constitute a three-dimensional coordinate system.

As shown in FIG. 3 , the structure of the bracket structure 1 can be referred to that shown in FIG. 4 a , which includes a fixed bracket 11 and a fixed beam 12 . The fixed bracket 11 can be used to install the label card 20 . A connecting bracket 13 may also be provided at the tail end of the fixed bracket 11 . When the plug-in card 20 is installed, the fixing bracket 11 can be fixed to the chassis of the electronic device through the connecting bracket 13 . Refer to the first direction X, the second direction Y, and the third direction Z. Exemplarily, the fixed bracket 11 has a first bracket surface b1 and a second bracket surface b2 that are away from each other, the fixed beam 12 is disposed on the second bracket surface b2, and the fixed beam 12 is perpendicular to the fixed bracket 11 .

For example, the length direction of the fixed beam 12 is parallel to the first direction X, the thickness direction is parallel to the second direction Y, and the width direction is parallel to the third direction Z. The fixed crossbeam 12 has a mounting surface a perpendicular to the third direction Z, and the two mounting surfaces a are symmetrically distributed with respect to the fixed crossbeam 12 . As shown in FIG. 4 b , two installation spaces T are formed between the two installation surfaces a of the fixed cross beam 12 and the fixed bracket 11 . Specifically, the two mounting surfaces a are mounting surface a1 and mounting surface a2 respectively. An installation space T is formed between the installation surface a1 and the second bracket surface b2 of the fixed bracket 11 , and another installation space T is formed between the installation surface a2 and the second bracket surface b2 of the fixed bracket 11 . Each installation space T can be used to install one or more plug-in cards 20 . Here, the two installation spaces T are symmetrical with respect to the fixed cross beam 12 along the second direction Y. As shown in Figure 2a, please further refer to Figure 4c. The bracket structure 1 has two installation spaces T, for example, the installation space T1 and the installation space T2. The two mounting surfaces a of the fixed crossbeam 12 are respectively the mounting surface a1 and the mounting surface a2. The mounting surface a1 corresponds to the mounting space T1, and the mounting surface a2 corresponds to the mounting space T2. A plug-in structure 2a is provided on the installation surface a1, and a plug-in structure 2b is provided on the installation surface a1. Two plug-in cards 20 (for example, plug-in card 20a and plug-in card 20b) are installed to the bracket structure 1, the plug-in card 20a is installed in the installation space T1, and the plug-in card 20a is connected to the plug-in structure 2a. The plug-in card 20b is installed in the installation space T2, and the plug-in card 20b is connected to the plug-in structure 2b. The two plug-in cards 20 can be installed in the two installation spaces T respectively. The plug-in cards 20a and 20b are symmetrical with respect to the fixed beam 12 along the second direction Y. As shown in FIG. 5 , two sets of plug-in structures 2 in the transfer unit 10 correspond to the above-mentioned two mounting surfaces a one-to-one. Each group of plug-in structures 2 can be used for corresponding plug-in cards 20 and motherboard connectors (here (not shown), thereby realizing a dual-plug connection between the plug-in card 20 and the motherboard connector. Here, a set of plug-in structures 2 installed on the mounting surface a2 of the fixed beam 12 is used as an example. The plug-in structures 2 include single-board components 21 and floating components 22 . The single board assembly 21 specifically includes a first single board 211, a second single board 212, and a flexible cable 213 connected between the first single board 211 and the second single board 212. The single board assembly 21 is used to realize the connection between the plug-in card 20 and the mainboard connector 202 in Figure 2b. Among them, the first single board 211 is used to connect the plug-in card 20 , and the second single board 212 is used to connect the mainboard connector 202 . The first single board 211 and the second single board 212 can be flexible circuit boards. The flexible cable 213 includes sequentially arranged cables. The connection between the first single board 211 and the second single board 212 can be realized by the flexible cable 213 Circuit connection. The first single board 211 is fixed on the mounting surface a2 of the fixed cross beam 12. One end of the flexible cable 213 is connected to the first single board 211, and the other end is connected to the second single board 212. A plug-in card connector Q is provided on the first single board 211. The plug-in card 20 installed on the fixed bracket 11 can be connected to the first single board 211 through the plug-in card connector Q. The second single board 212 is provided with a golden finger K, and the second single board 212 can be connected to the mainboard connector through the golden finger K. The second single board 212 is fixed to the floating component 22, and the floating component 22 is movably installed on the fixed beam 12 of the bracket structure 1 along the first direction. The floating component 22 can provide a movable support for the second single board 212.

As shown in Figure 6a, the gold finger K of the second single board 212 has a notch area P. Taking the plugging direction of the adapter unit 10 and the mainboard connector 202 on the mainboard 201 as a reference (that is, the third direction Z), the golden finger K is disposed on the edge of the second single board 212 facing the mainboard connector 202. It is convenient for the golden finger K to be plugged into the motherboard connector 202. The extension direction of the notch area P is parallel to the third direction Z, and the opening of the notch area P is located on an edge of the golden finger K facing the motherboard connector 202 . Correspondingly, the motherboard connector 202 has positioning protrusions B. The position and shape of the positioning protrusion B correspond to the notch area P on the second single board 212, so that when the gold finger K on the second single board 212 is accurately connected to the motherboard connector 202, the notch P will be in contact with the mainboard connector 202. The positioning protrusions B cooperate with each other. That is to say, only when the notch area P and the positioning protrusion B accurately match along the first direction Therefore, based on the general shape and specification of the golden finger K, the arrangement of the positioning protrusion B can provide a reference and guide for the precise insertion of the golden finger K and the motherboard connector 202 .

As can be seen from FIG. 5 , the adapter unit 10 has two sets of plug-in structures 2 , and each set of plug-in structures 2 can be used to plug into a corresponding motherboard connector 202 . In the corresponding plug-in structure 2 and the motherboard connector 202, the second single board 212 needs to be precisely docked with the mainboard connector 202. The notch P on the golden finger K of the second single board 212 is in contact with the positioning protrusion on the mainboard connector 202. Qi B cooperates with each other. Referring to Figure 6a together, when two sets of plug-in structures 2 are plug-fitted with two motherboard connectors 202, if the second single board 212 in one of the sets of plug-in structures 2 can move along the plug-in direction (ie, the third direction Z ) is precisely plugged into the motherboard connector 202, and the notch area P of the second single board 212 cooperates with the positioning protrusion B of the motherboard connector 202. Due to the existence of manufacturing tolerances, as shown in Figure 6b, the second single board 212 in another set of plug structures 2 may not correspond to the mainboard connector 202 corresponding to the second single board 212 along the third direction Z (dashed line (shown in the figure), the notch area P on the gold finger K and the positioning protrusion B cannot match, resulting in the second single board 212 and the mainboard connector 202 being unable to be accurately plugged in the third direction Z. Move the second single board 212 relative to the first single board 211 along the first direction At this time, the notch area P and the positioning protrusion B can correspond to each other, ensuring that the second single board 212 can be accurately plugged into the mainboard connector 202 . It should be understood that the adjustment direction in Figure 6b is only an example, and reverse adjustment may also occur.

Assume that one of the second single boards 212 can precisely mate with the mainboard connector 202 corresponding to the second single board 212, and the other second single board 212 and the mainboard connector 202 corresponding to the second single board 212 are along the first direction. X has a matching error and cannot be precisely connected. Along the first direction Precision plugging. The flexible cable 213 corresponding to the second single board 212 that needs to be adjusted can allow the second single board 212 to make such adjustment. During the movement of the second single plate 212 , the floating component 22 may move relative to the fixed crossbeam 12 .

In some embodiments, as shown in Figure 7a, the first single board 211, the flexible cable 213 and the second single board 212 are arranged in sequence along the first direction X. For the single board assembly 21 , the flexible cable 213 can produce structural deformation along the first direction X, thereby changing the distance of the second single board 212 relative to the first single board 211 . The flexible cable 213 can be implemented by embedding a cable in the flexible base material, and the cable is used to connect the first single board 211 and the second single board 212 . For example, the flexible base material of the flexible cable 213 may be rubber. As shown in FIG. 7b , the second single board 212 moves in a direction away from the first single board 211 along the arrow direction parallel to the first direction X. The flexible cable 213 can be made of rubber. Cable 213 may be embodied as elastically elongated. As shown in FIG. 7c , the second single board 212 moves in the direction of the arrow parallel to the first direction X toward the first single board 211 , and the flexible cable 213 can be elastically shortened. Alternatively, the flexible base material of the flexible cable 213 is a braided tape. As shown in 7d, the second single board 212 moves in a direction close to the first single board 211 along the arrow direction parallel to the first direction X, and the flexible cable 213 can Reflected in structural deformation. It should be understood that when the flexible cable 213 can be both extended and shortened (as shown in Figures 7b and 7c), the single board assembly 21 can adapt to various scenarios. When the flexible cable 213 can only be extended or shortened (as shown in Figure 7d), the single board assembly 21 can only adapt to the situation of adjusting the second single board 212 in the direction close to the first single board 211 along the first direction X. .

The floating structure 22 of the adapter unit 10 will be explained below with reference to FIG. 8 . As shown in FIG. 8 , the floating component 22 specifically includes a floating member 221 and an elastic member 222 . The floating member 221 is used to be fixed to the second single plate 212. When the second single plate 212 is adjusted, the floating member 221 can move accordingly. The floating member 221 is fixed to the mounting surface a of the fixed beam 12 of the bracket structure 1 through the elastic member 222 . Specifically, a fixing plate 121 is provided on the mounting surface a of the fixed cross beam 12 , and the end of the elastic member 222 away from the floating member 221 can be fixed on the fixing plate 121 . Each fixing plate 121 is fixed to the mounting surface a of the fixing beam 12 through a second screw 6 , and the specification of the second screw 6 is M3.

In order to limit the movement of the floating member 221 along the first direction Direction X. Correspondingly, the floating member 221 has a limiting chute N. The limiting chute N is also elongated, and its length direction is also parallel to the first direction X. The length of the limiting chute N is greater than the length direction of the limiting protrusion M, so that the limiting protrusion M can move along the first direction in the limiting chute N. When the floating member 221 moves along the first direction X with the second single plate 212, the limiting chute N can move relative to the limiting protrusion M along the first direction move along the first direction X). In order to realize the connection between the floating member 221 and the second single plate 212, the floating member 221 is provided with a threaded hole 3 and a guide pin 4. The threaded holes 3 can be used to fit screws or bolts. The guide pin 4 is fixed on the floating member 221 and extends perpendicularly to the floating member 221 in a direction away from the fixed crossbeam 12 .

Regarding the structure of the floating member 221, reference can be made to FIG. 9. The floating member 221 is similar to a rectangle. Four receiving grooves R are respectively provided at the four vertex positions of the floating member 221 . The extension direction (that is, the depth direction) of each receiving groove R is parallel to the first direction. Each receiving groove R is used to provide a corresponding elastic member 222 . Due to limited viewing angles, only two accommodation grooves R located on the left side of the floating member 221 are shown in FIG. 9 .

Based on the structure of the floating member 221 mentioned above, please refer to the schematic diagram of the connection structure between the floating member 221 and the fixed plate 121 shown in FIG. 10a. There are two fixed plates 121 . Along the first direction There are four elastic members 222 , and the four elastic members 222 respectively correspond to the four vertex positions of the floating member 221 . Specifically, the expansion and contraction directions of the four elastic members 222 are all parallel to the first direction X. Two of the elastic members 222 are located on one side of the floating member 221 in the length direction, and the other two elastic members 222 are located on the other side of the floating member 221 in the length direction. For clarity of identification, only the two elastic members 222 located on the right side of the floating member 221 are exemplarily marked in the drawings.

Cutting the connection structure between the floating member 221 and the fixed plate 121 with a plane parallel to the first direction X and the third direction Z can obtain the schematic cross-sectional structural diagram shown in FIG. 10b. For each elastic member 222 , one end of the elastic member 222 is fixed to the fixed plate 121 , and the other end extends into the receiving groove R to be fixed to the floating member 221 . The elastic member 222 here is exemplified as a spring. And the expansion and contraction direction of the elastic member 222 is parallel to the first direction X.

As shown in Figure 11, after the second single plate 212 is fixed to the floating member 221, the first screw 5 passes through the second single plate 212 and then connects with the fixed plate 121 (the fixed plate 121 is blocked by the second single plate 212 here and is not Shown) threaded hole 3 on the lock. The guide pin 4 on the fixed plate 121 passes through the guide hole 2121 on the second single plate 212, and the guide pin 4 cooperates with the guide hole 2121.

In addition, the movement of the floating member 221 along the first direction X has a certain range, and the range can be limited to about 2 mm. As shown in Figure 12a, in the embodiment of the present application, a fixed plate 121 is provided on both sides of the floating member 221. Combined with the process (structural) error, when the elastic member 222 is not stressed, the gap H between any fixed plate 121 and the floating member 221 along the first direction X is limited to 1±0.15 mm. This allows the floating member 221 to move relative to the fixed crossbeam 12 along the first direction X by a distance of 2±0.3 mm.

For example, as shown in Figure 12b, the floating member 221 is set to move in the direction shown by the arrow (that is, to the left side of the figure), and the gap between the floating member 221 and the fixed plate 121 located on the right side of the floating member 221 increases. Up to H11. This H11 is larger than the original gap H, for example, H11 is 1.3mm. Correspondingly, the gap between the floating member 221 and the fixed plate 121 located on the left side of the floating member 221 decreases to H21. This H21 is smaller than the original gap H, for example, H21 is 0.7mm. The two elastic members 222 on the left side of the floating member 221 are compressed, the two elastic members 222 on the right side of the floating member 221 are stretched, and the four elastic members 2223 have the tendency to drive the floating member 221 to move to the right along the first direction X. . As shown in FIG. 12c , the floating member 221 is set to move in the direction shown by the arrow (ie, move to the right side of the figure), and the gap between the floating member 221 and the fixed plate 121 located on the right side of the floating member 221 is reduced to H12. This H12 is smaller than the original gap H, for example, H12 is 0.6mm. Correspondingly, the gap between the floating member 221 and the fixed plate 121 located on the left side of the floating member 221 increases to H22. This H22 is larger than the original gap H, for example, H22 is 1.4mm. The two elastic members 222 on the left side of the floating member 221 are stretched, the two elastic members 222 on the right side of the floating member 221 are compressed, and the four elastic members 222 have a tendency to drive the floating member 221 to move left along the first direction X. .

For example, referring to Figures 2a, 4b and 4c together, when the bracket structure 1 can install more than two plug-in cards 20, as shown in Figure 13a, each installation space T can be along the width direction of the fixed beam 12 ( That is, the third direction Z) is divided into two or more subspaces t. The example here is that each installation space T has three subspaces t. For any installation space T, two or more subspaces t are arrayed along the third direction Z. Each subspace t can be installed with one plug-in card 20 corresponding to it. It should be understood that as the number of plug-in cards 20 increases, the dimensions of the two installation spaces T on the bracket structure 1 along the third direction Z also need to increase, that is, the width of the fixed beam 12 (i.e., the dimension along the third direction Z) also needs to be increased. It needs to be added to facilitate the connection between the plug-in structure 2 installed on the fixed crossbeam 12 and the corresponding plug-in card 20.

Please further refer to FIG. 13b , assuming that the bracket structure 1 can install six plug-in cards 20 . Specifically, three plug-in cards 20a are installed on one side of the mounting surface a1 of the fixed beam 12, and the three plug-in cards 20a are arranged in sequence along the third direction Z. A plug-in structure 2a is provided on the mounting surface a1 of the fixed crossbeam 12. The single-board component 21a of the plug-in structure 2a can be connected to three plug-in cards 20a at the same time. The three plug-in cards 20a are respectively connected to the three single-board components 21a. Board connectors Q1 are connected in one-to-one correspondence. The single board assembly 21a can be used to plug into a motherboard connector (not shown here). Correspondingly, three plug-in cards 20b are installed on one side of the mounting surface a2 of the fixed beam 12, and the three plug-in cards 20b are arranged in sequence along the third direction Z. A plug-in structure 2b is provided on the mounting surface a1 of the fixed crossbeam 12. The single-board component 21b of the plug-in structure 2b can be connected to three plug-in cards 20b at the same time. The three plug-in cards 20b are respectively connected to the three single-board components 21b. Board connectors Q2 are connected in one-to-one correspondence. The single board assembly 21b can be used to plug into a motherboard connector (not shown here). It should be understood that the structure shown in FIG. 13b is only a possible implementation of the adapter module 100 provided by the embodiment of the present application, and the installation method of the plug-in card 20 and the adapter unit 10 is not limited thereby.

With reference to Figure 2b, Figure 8, Figure 11 and Figure 13b, when the adapter module 100 provided by the embodiment of the present application is plugged into the mainboard 201, if the second single board 212 in a certain plug-in structure 2 cannot be connected to the mainboard The connector 202 is aligned along the plugging direction (ie, the third direction Z), causing the second single board 212 to be unable to be accurately plugged into the mainboard connector 201. The position of the second single board 212 can be adjusted relative to the bracket structure 1 so that the second single board 212 moves under the floating connection of the floating assembly 22 until the second single board 212 is aligned along the plugging direction (i.e., the second single board 212 shown in Figure 6a The notch area P on the single board 212 is aligned with the positioning protrusion B on the mainboard connector 202 ), so that the second single board 212 can be accurately plugged into the mainboard connector 202 . Especially when the adapter module 100 is dual-plugged or multi-plugged with the mainboard 201, when a second single board 212 cannot be accurately plugged into the corresponding mainboard connector 202, the second single board 212 can be adjusted. Precise dual insertion of the second single board 212 and the mainboard connector 202 is achieved.

An embodiment of the present application also provides an electronic device. The electronic device may include the above-mentioned switching module 100. The switching module 100 may include the above-mentioned switching unit 10. The switching unit 10 may be used to implement the above-mentioned embodiments. any function of the switching unit 10. Taking the electronic device as a server as an example, the server may specifically be an image processor configuration type server. As shown in Figure 14, the server includes a chassis 200, a motherboard 201 and the above-mentioned switching module 100. It is assumed that the chassis 200 has a front end and a rear end. The above-mentioned switching module 100 can be disposed at the rear end of the chassis 200 so as not to occupy the front end space of the chassis 200 . A cooling fan 203 for dissipating heat from the mainboard 201 and other components is also provided between the adapter module 100 and the front end of the chassis 200 . In Figure 14, two adapter modules 100 are illustrated (the dotted box represents one adapter module 100). Each adapter module 100 can realize the insertion of two plug-in cards 20 and two connectors 202 ( For a diagram of the insertion of the connector 202 and the plug-in card 20, please refer to FIG. 2b). Since the second single board 212 in the adapter module 100 can move along the first direction The board 212 can be precisely plugged into the motherboard connector 202 to meet the tolerance requirements of high-density dual plugging. The server can realize precise dual plugging through the above-mentioned transfer unit 10 and the mainboard connector 202, so that multiple plug-in cards 20 can be connected to the mainboard 201 to meet the scenario of multi-level synchronous plugging.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of changes or replacements within the technical scope disclosed in the present application, and all of them should be covered. within the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims (11)

1. The switching unit is characterized by comprising a bracket structure and a plug-in structure arranged on the bracket structure;

the support structure is used for expanding a mainboard where the switching unit is positioned and can be connected with an inserting card;

the plug-in structure comprises a single-board assembly and a floating assembly; the veneer assembly comprises a first veneer, a flexible cable and a second veneer; the first single board is used for connecting the plug; the second single board is used for connecting with the mainboard connector; the second single board is in floating connection with the support structure through the floating assembly.

2. The pod of claim 1, wherein the float assembly comprises a float and at least one resilient member;

the second single plate is fixedly connected with the floating piece;

the elastic piece is used for connecting the floating piece and the support structure, and the expansion direction of the elastic piece is perpendicular to the inserting direction of the second single board and the mainboard connector.

3. The adapter unit according to claim 2, wherein the floating member has a receiving groove for receiving the elastic member, and an extending direction of the receiving groove is parallel to a telescoping direction of the elastic member.

4. A transfer unit according to claim 2 or 3, wherein the number of elastic members is even;

and an even number of elastic pieces are symmetrically arranged on two sides of the floating piece along the expansion and contraction direction of the elastic pieces.

5. The adapter unit according to claim 4, wherein two fixing plates are arranged on the bracket structure, the two fixing plates are arranged on two sides of the floating piece, and each fixing plate is connected with the floating piece through at least one elastic piece.

6. The adapter unit according to claim 5, wherein a gap between the floating member and any one of the fixing plates is 1±0.15mm in a telescoping direction of the elastic member.

7. The transfer unit of any one of claims 1-6, wherein the support structure is provided with a limit protrusion, the floating assembly is provided with a limit chute, and the limit protrusion is in sliding fit with the limit chute.

8. The adapter unit according to any one of claims 1-7, wherein the bracket structure comprises a fixed bracket and a fixed cross beam;

the fixed bracket is used for bearing the plug-in card; the fixed cross beam is fixed on the fixed support, and is provided with two mounting surfaces which are in one-to-one correspondence with the plug-in structures;

the first veneer is arranged on the mounting surface between the mounting surface and the plug-in structure.

9. A transfer module comprising a plug-in card and a transfer unit according to any one of claims 1-8; the inserting cards are arranged on the support structure and correspond to the inserting structures one by one;

and the plug-in card is connected with the first single board between the plug-in card and the plug-in structure which are mutually corresponding.

10. An electronic device comprising a switch module according to claim 9, the switch module comprising a switch unit for implementing the function of the switch unit according to any one of claims 1 to 8.

11. The electronic device of claim 10, further comprising a chassis, a motherboard;

the main board and the switching module are arranged in the case, and the switching module is positioned at one end of the case;

the main board is provided with at least one connector group, and one connector group in the at least one connector group comprises two main board connectors; each connector group is used for being inserted into one switching module;

the main board connector is in plug-in fit with the second single board.