WO2021051898A1

WO2021051898A1 - Server, floating connector, and system

Info

Publication number: WO2021051898A1
Application number: PCT/CN2020/095525
Authority: WO
Inventors: 菅奕颖; 李定方; 李世强; 宋桂东; 龚心虎; 宁湘
Original assignee: 华为技术有限公司
Priority date: 2019-09-17
Filing date: 2020-06-11
Publication date: 2021-03-25
Also published as: CN110794930A; CN110794930B

Abstract

A server, a floating connector (40), and a system. The server comprises a case (50), and a power module (10) and circuit boards (20, 30, 60) provided in the case (50); the circuit boards (20, 30, 60) are connected to the power module (10) by means of the floating connector (40); the floating connector (40) is slidably connected to the case (50); the floating connector (40) may slide in a first direction with respect to the case (50). In the solution, the power module (10) is connected to the circuit boards (20, 30, 60) by means of the floating connector (40), such that the power module (10) can be connected to different circuit boards (20, 30, 60), respectively, and different circuit boards (20, 30, 60) are connected in parallel, thereby improving the flexibility of the server architecture. In addition, when different levels of circuit boards (20, 30, 60) are connected in parallel, tolerance can be absorbed by means of the floating connector (40), tolerance accumulation during assembly is reduced, and the power module (10) can be conveniently connected to different circuit boards (20, 30, 60), thereby improving the assembly efficiency of the server.

Description

Server, floating connector and system

Technical field

This application relates to the field of servers, and in particular to a server, a floating connector and a system.

Background technique

Under the torrent of the Internet, big data, and cloud computing, higher and higher requirements are put forward for the layout density of servers. In the limited chassis space, it is necessary to implement a multi-layer PCB board stacking structure to improve product performance. However, in the multi-layer complex stacking architecture, the accumulated tolerances of the connectors between different boards are large, which will cause problems such as excessive connector stress, difficulty in assembly, and reduced reliability, resulting in system failure.

One of the current methods is to only transmit electricity/signals between two adjacent modules through connector matching. In this way, it is only necessary to solve the tolerance problem of the connector matching between each adjacent module, and the multilayer PCB can be stacked in series. Realize the system plan. When there are multiple modules, the adjacent PCB boards can be placed vertically or parallel, and only need to be designed to meet the tolerance between two adjacent PCBs not greater than the allowable tolerance of the connector. There is no coupling and overlap between tolerances, and it is easier to achieve high-density stacking of multi-layer PCB boards. However, for the above-mentioned connectors with limited guiding ability, the prior art can only realize the series mating of the connectors at different levels, and as more and more circuit boards are in the chassis, it becomes more and more difficult to assemble.

Summary of the invention

This application provides a server, a floating connector, and a system to improve server assembly efficiency.

In a first aspect, a server is provided. The server includes a chassis and a module arranged in the chassis; wherein the module is used to supply power or transmit signals to circuit boards and other electronic devices in the chassis. In addition, a circuit board is stacked in the chassis; the circuit board is connected to the module through a floating connector; and the floating connector is slidably connected to the chassis; wherein the floating connector can be positioned along the first side of the chassis relative to the chassis. Slide in one direction. In the above solution, the module is connected to the circuit board through a floating connector, so that the module can be connected to the circuit board, and the module connects the circuit boards in parallel, thereby improving the flexibility of the server architecture. In addition, when parallel circuit boards are used, tolerances can be absorbed by floating connectors, thereby reducing tolerance accumulation during assembly, reducing installation requirements, facilitating the connection of modules with different circuit boards, and improving the assembly efficiency of the server.

In a possible implementation manner, a support column is provided on the chassis, and the floating connector is provided with a long waist hole that is slidably fitted with the support column. Through the relative sliding between the long waist hole and the support column, the sliding fit between the floating connector and the chassis is realized.

In a possible implementation manner, the support column is screwed with a locking screw threaded in the long waist hole; the floating connector is locked by a locking screw threaded in the long waist hole In the set position. The stability of the floating connector when connected to the module and the circuit board is ensured.

In a possible implementation manner, a guide pin is provided on the module; and the floating connector is provided with a guide sleeve sleeved on the guide pin. Through positioning and matching, the floating connector can be accurately connected with the module.

In a possible implementation manner, the module and the floating connector can realize the relative sliding before the module and the floating connector through a guide pin and a guide sleeve. In this implementation, the guide pin and the guide sleeve are roughly positioned, and the guide pin can move slightly in the guide sleeve, so that the module and the floating connector can slide relative to each other, so that tolerances can be further absorbed.

In a possible implementation manner, the floating connector includes: a frame body and a copper bar arranged in the frame body; wherein the frame body is slidably connected to the chassis; the circuit board passes through the The copper bar is connected with the module. The sliding connection between the floating connection and the chassis, and the connection with the module and the circuit board are realized through the different structures of the floating connector.

In a possible implementation manner, the copper bar is slidably connected to the frame, and the copper bar can slide in the second direction relative to the frame. The sliding of the copper bar relative to the frame in the second direction increases the adjustable range of the floating connector.

In a possible implementation manner, the first direction is perpendicular to the second direction. In this way, tolerances can be absorbed in two mutually perpendicular ranges.

In a possible implementation manner, a first connector is provided on the side of the copper bar facing the circuit board; the circuit board is provided with a first jacket for connecting with the first connector; and the module is provided with There is a second connector; the side of the copper bar facing the module is provided with a second jacket for connecting with the second connector; wherein, between the first jacket and the first connector When connected but not fixed, the first connector can slide in the third direction relative to the first jacket; when the second jacket is connected to the second connector but not fixed, the second The connecting head can slide in a fourth direction relative to the second jacket. The third direction and the fourth direction are parallel to the first direction and the second direction in pairs; or, the third direction and the fourth direction are parallel to the first direction, respectively; or , The third direction and the fourth direction are respectively parallel to the second direction. The connection is realized through the cooperation of the connector and the jacket.

In a possible implementation manner, the number of circuit boards may be multiple, and multiple circuit boards are on the same layer. In this way, the floating connector can be connected to different circuit boards on the same layer.

In a possible implementation manner, a through hole is provided on the frame body, and the second connecting sleeve passes through the through hole and is exposed. Thereby it is convenient to connect with the second connector of the module.

In a second aspect, a floating connector is provided. The floating connector includes a frame and a copper bar arranged in the frame; wherein the frame is used for sliding connection with the chassis of the server; the copper bar Used to connect modules and circuit boards. The floating connector is slidably connected to the chassis, so that the floating connector can absorb the accumulation of tolerances during assembly between the module and the circuit board of the chassis, reduce installation requirements, and facilitate the connection of the module with different circuit boards.

In a possible implementation manner, the copper bar is slidably connected to the frame, and the copper bar can slide in the second direction relative to the frame. Through the sliding connection of the copper bar and the frame, the flexibility of the connection between the floating connector and the circuit board and the module can be improved.

In a possible implementation manner, the floating connector is provided with a long waist hole that is slidably fitted with the chassis of the server, and the floating connector can slide in a first direction relative to the chassis. The sliding connection is realized through the cooperation of the long waist hole and the server chassis.

In a possible implementation manner, a first connector is provided on the side of the copper bar facing the circuit board; the circuit board is provided with a first jacket for connecting with the first connector; and the module is provided with There is a second connector; the side of the copper bar facing the module is provided with a second jacket for connecting with the second connector; wherein, between the first jacket and the first connector When connected but not fixed, the first connector can slide in the third direction relative to the first jacket; when the second jacket is connected to the second connector but not fixed, the second The connecting head can slide in a fourth direction relative to the second jacket. The third direction and the fourth direction are parallel to the first direction and the second direction in pairs; or, the third direction and the fourth direction are parallel to the first direction, respectively; or , The third direction and the fourth direction are respectively parallel to the second direction. The connection is realized through the cooperation of the connector and the jacket. The connection between the floating connector and the module and the circuit board is realized through the cooperation of the connector and the connecting sleeve.

In a third aspect, a system is provided, which includes the server according to any one of the above, or the floating connector according to any one of the above. In the above solution, the module is connected to the circuit board through the floating connector, so that the module can be directly connected to different circuit boards, thereby improving the flexibility of the server architecture. In addition, when parallel connection between circuit boards of different levels is used, tolerances can be absorbed by floating connectors, thereby reducing tolerance accumulation during assembly, reducing installation requirements, and facilitating the connection of modules to different circuit boards.

Description of the drawings

Figure 1 shows an exploded schematic diagram of a server provided by an embodiment of the present application;

FIG. 2 shows a schematic diagram of the YZ plane of the server provided by an embodiment of the present application;

FIG. 3 shows a schematic diagram of the XZ plane of the server provided by an embodiment of the present application;

FIG. 4 shows a schematic structural diagram of a power supply module provided by an embodiment of the present application;

FIG. 5 shows an exploded schematic diagram of a power supply module provided by an embodiment of the present application;

Fig. 6 shows a schematic structural diagram of a floating connector provided by an embodiment of the present application;

Fig. 7 shows an exploded schematic diagram of a floating connector provided by an embodiment of the present application;

Figure 8 shows a second type of floating connector provided by an embodiment of the present application;

Fig. 9 shows a partial enlarged view at A in Fig. 8;

Figure 10 shows the specific structure of the connection between the floating connector and the chassis;

Figure 11 shows a schematic diagram of the floating connector slidable relative to the chassis;

Fig. 12 shows a schematic diagram of mating between a floating connector and a power module provided by an embodiment of the present application.

detailed description

In order to facilitate the understanding of the server provided in the embodiment of the present application, first, the structure and application scenarios of the server are explained. The server is used in the Internet, big data and cloud computing. As the Internet, big data, and cloud computing demand higher and higher computing capabilities, the structure of the server becomes more and more compact, and more and more circuit boards need to be installed in the server chassis. The multiple circuit boards can be divided into different levels of circuit boards according to different functions, such as first-level circuit boards, second-level circuit boards, or third-level circuit boards. For example, the first-level circuit board may be a central processing unit (CPU) board, and the second-level circuit board may be an embedded neural-network processing unit (NPU) board. When multiple circuit boards are installed in the chassis, the same-level circuit boards can be arranged on one layer, and the circuit boards of different levels are arranged in layers. If there are two-level circuit boards, the circuit boards in the chassis are divided into two layers. When there are three-level circuit boards, the circuit boards in the chassis are divided into three layers. Of course, it should be understood that the above-mentioned layered arrangement of circuit boards is only an example, and the server provided in the embodiment of the present application does not limit the specific layering manner of the circuit boards.

When the server is used, the circuit board in the chassis needs to be connected to the power supply module for power supply. The power supply mode adopted in the server in the prior art is interlayer power supply mode, that is, power supply is provided by connecting multiple circuit boards in series: the power module supplies power to the nearest circuit board, and then the adjacent circuit boards are connected in sequence Supply power. When power is supplied in this way, multiple circuit boards are connected in series. When the circuit board and the power supply are assembled in the chassis, the chassis is used as the assembly reference, and the circuit boards and the chassis of different levels are connected to the chassis through the matching methods such as pegs and slots. Since the chassis will have processing tolerances during the processing of different processes, and the assembly tolerances of each circuit board relative to the chassis are relatively large, large accumulated tolerances will be generated, which will make it difficult to assemble the power supply and the circuit board. However, as the number of circuit boards in the server continues to increase, assembly will become more and more difficult. Therefore, the above-mentioned power supply method can no longer satisfy the existing server. For this reason, an embodiment of the present application provides a server. The following is combined with the accompanying drawings and Specific embodiments will describe it in detail.

As shown in Fig. 1, Fig. 1 shows an exploded schematic diagram of a server provided by an embodiment of the present application. The server provided by the embodiment of the present application includes a chassis 50, a circuit board, a floating connector 40, and a power supply module 10. To facilitate reference to the description of the drawings in the embodiments of the present application, a coordinate system XYZ is established in FIG. 1, wherein the X-axis direction, the Y-axis direction and the Z-axis direction are respectively parallel to one side of the chassis 50.

Refer to FIGS. 2 and 3 together, in which FIG. 2 is a schematic diagram of the YZ plane of the server provided in an embodiment of this application; FIG. 3 is a schematic diagram of the XZ plane of the server provided in an embodiment of this application. The chassis 50 provided by the embodiment of the present application is used to carry the circuit board and the power module 10. Among them, the power module 10 and the circuit board are fixed in the chassis 50. In FIG. 2, three circuit boards are illustrated, namely the first circuit board 20, the second circuit board 30, and the third circuit board 60. The first circuit board 20 is a first-level circuit board, and the second circuit board 30 and the third circuit board 60 are second-level circuit boards. For example, the first circuit board 20 may be a CPU board, and the second circuit board 30 and the third circuit board The circuit boards 60 are respectively NPU boards. Continuing to refer to FIG. 2, the second circuit board 30 and the third circuit board 60 are located on the same layer; and along the Z direction, the first circuit board 20 is located on the same layer above the second circuit board 30 and the third circuit board 60; The power module 10 is located above the first circuit board 20.

2 and 3, when fixing the above-mentioned circuit boards (first circuit board 20, second circuit board 30, and third circuit board 60) and power module 10, the power module 10 is fixedly connected to the chassis 50, and the circuit board passes The connecting structure is fixedly connected to the chassis 50, wherein the above-mentioned connecting structure may be a bracket in the chassis 50 or a supporting structure on the chassis 50, which will not be repeated here.

4 and 5 together, FIG. 4 shows a specific structure of the power module 10, and FIG. 5 shows an exploded schematic diagram of the power module 10. The power supply module 10 provided in the embodiment of the present application is a component conductively connected to the above three circuit boards. When assembling, the power supply module 10 is fixedly connected to the chassis 50. Continuing to refer to Figure 5, the specific structure of the power module 10 includes a power frame 15 and a power backplane 14 fixed to the power frame 15. The power backplane 14 is fastened to the power frame 15 by a buckle; wherein, the power source The bottom of the frame 15 is provided with a first plug bar 12, the power backplane 14 is provided with a second plug bar 11, and the power frame 15 is provided with a power supply 16 electrically connected to the first plug bar 12 and the second plug bar 11, respectively. . The second socket 11 is used to supply power to the first circuit board 20, and the first socket 12 is used to supply power to the second circuit board 30 and the third circuit board 60; for the first socket 12 and the second socket 11 They all include plug strips corresponding to the positive and negative poles of the power supply, which will not be described in detail here. When the first plug-in strip 12 supplies power to the second circuit board 30 and the third circuit board 60, it is switched through the floating connector 40. The power supply module 10 provided by the embodiment of the present application is directly electrically connected to the floating connector 40 through the first plug-in strip 12, and at the same time is electrically connected to the second circuit board 30 and the third circuit board 60 through the floating connector 40, that is, the first level circuit board The (first circuit board 20) is connected in parallel with the secondary circuit board (the second circuit board 30 and the third circuit board 60).

4 and 5, the first plug-in row 12 and the second plug-in row 11 are located below the power supply frame 15. When the circuit board is mated with the power supply module 10, the circuit board connects with the power supply module 10 from the bottom of the power supply frame 15 Electric connection. Therefore, the first plug-in strip 12 and the second plug-in strip 11 are arranged under the power frame 15 to facilitate the connection of the power module 10 and the circuit board. In addition, when the first plug-in row 12 and the second plug-in row 11 are arranged, it can be seen from FIG. 5 that along the Z-axis direction, the first plug-in row 12 is located below the power frame 15 (as shown in FIG. 5 where the power module 10 is placed Direction is the reference direction), the second power strip 11 is located on the right side of the power supply frame 15 and the second power strip 11 extends to the outside of the power supply frame 15, so as to prevent the first power strip 12 from affecting the second power strip 11 and the first power strip 11 The connection of the circuit board 20. It should be understood that the location of the first power strip 12 and the second power strip 11 is only a specific example. In the embodiment of the present application, the first power strip 12 and the second power strip 11 on the power module 10 During the installation, it is only necessary to ensure that no interference occurs when the power supply module 10 is connected to the circuit board respectively, and it is not limited to the specific installation positions shown in FIG. 4 and FIG. 5.

The power supply module provided by the embodiment of the present application further includes a guide pin. As shown in FIG. 5, the guide pin 13 is disposed on the power supply frame 15, and the guide pin 13 and the first plug-in row 12 are located on the same side of the power supply frame 15. The guide pin 13 is used to position the relative positional relationship between the floating connector 40 and the power module 10 to ensure that the floating connector 40 can be accurately electrically connected to the first plug-in row 12 when the floating connector 40 is connected to the power module 10. In FIG. 5, two guide pins 13 are illustrated, and the two guide pins 13 are arranged on both sides of the first plug-in row 12 and arranged diagonally. However, it should be understood that in practical applications, different numbers of guide pins 13 can be provided as required, which is not limited in this application.

Continuing to refer to FIG. 2, when the power module 10 provided in the embodiment of the present application is connected to the first circuit board 20, the first circuit board 20 is directly electrically connected to the power module 10. Referring to FIGS. 2 and 3 together, the first circuit board 20 is provided with a copper clip corresponding to the second plug-in row 11, which is referred to as the first copper clip 21 for the convenience of description. During assembly, the second socket 11 of the power module 10 is directly inserted into the first copper clip 21 of the first circuit board 20, and the second socket 11 is clamped by the first copper clip 21, and the power module 10 is connected to the The first circuit board 20 is electrically connected. Continuing to refer to Figures 2 and 3, it can be seen from Figures 2 and 3 that the length direction of the first copper clip 21 and the second plug-in row 11 is along the Y-axis direction. Due to the cooperation of the copper clip and the plug-in row, the assembly accuracy requirements are compared. Therefore, the cooperation of the copper clip and the plug-in strip can ensure the reliable connection between the first circuit board 20 and the power module 10. And it can be seen from FIG. 2 that the first circuit board 20 is arranged adjacent to the power module 10, therefore, the dimensional chain between the power module 10 and the first circuit board 20 is shorter, and the tolerance accumulation between the two is also smaller. , The reliable connection between the power supply module 10 and the first circuit board 20 can be ensured by the first copper clip 21 and the second plug-in strip 11, and the alignment accuracy between the two is relatively low.

Continuing to refer to FIG. 2, the second circuit board 30 and the third circuit board 60 provided by the embodiment of the present application are circuit boards of the same level, and when installed, the second circuit board 30 and the third circuit board 60 are arranged on the same layer, and The dimension chain between the two is short and the relative tolerance is small. Continuing to refer to FIG. 2, the assembled second circuit board 30 and the third circuit board 60 are located below the first circuit board 20, and they are far away from the power module 10. Therefore, during assembly, the power module 10 and the second circuit board 30 Due to the relatively long dimension chain between the third circuit board 60 and the third circuit board 60, a relatively large tolerance will be generated. Therefore, during assembly, the power supply module 10 is electrically connected to the second circuit board 30 and the third circuit board 60 through the floating connector 40. When the floating connector 40 is installed, the floating connector 40 is slidably connected to the chassis 60, so that the relative sliding between the floating connector 40 and the chassis 60 can absorb the power module 10 and the second circuit board 30 and the third circuit board 60 Tolerance between. In order to facilitate understanding, the following description is given in conjunction with the drawings.

2 and 3, the floating connector 40 provided in the embodiment of the present application is also connected to the power module 10, the second circuit board 30, and the third circuit board 60 through plug-in strips and copper clips. The following describes in detail how the floating connector 40 is connected to the power module 10, the second circuit board 30, and the third circuit board 60 in detail with reference to the accompanying drawings.

6 and 7 together, wherein FIG. 6 shows a schematic structural diagram of the floating connector 40, and FIG. 7 shows an exploded schematic diagram of the floating connector 40. As shown in FIG. The floating connector 40 shown in FIGS. 6 and 7 includes a frame 43 and a copper bar 44 arranged in the frame 43. Among them, the frame 43 is used as a structural member for connecting the floating connector 40 to the chassis, and the copper bar 44 is used as a structural member for connecting the power module 10, the second circuit board 30 and the third circuit board 60 as the floating connector 40.

6 and 7, the frame 43 of the floating connector 40 includes an upper frame 431 and a detachable lower frame 432 fixedly connected to the upper frame 431, and the upper frame 431 and the lower frame 432 A space for accommodating the copper bar 44 is enclosed between. When the upper frame body 431 and the lower frame body 432 are specifically connected, they can be detachably connected by means of bolts, screws or buckles. The above-mentioned connection method is a common connection method, so it will not be repeated here. Continuing to refer to FIGS. 6 and 7, as shown in FIGS. 6 and 7, a guide sleeve 434 is provided on the lower frame 432, and the guide sleeve 434 is used to match the guide pins of the power module 10 in a one-to-one correspondence to achieve floating connection The alignment of the device 40 and the power module 10.

Of course, it should be understood that the setting of the guide sleeve 434 on the lower frame 432 is only a specific example, and the guide sleeve 434 may also be provided on the upper frame 431 in the embodiment of the present application. Of course, as an implementable deformation, the guide pin can also be arranged on the floating connector 40 and the guide sleeve 434 can be fixed to the power module 10.

Continuing to refer to FIG. 6 and FIG. 7, the copper bar is fixed to the frame body 43 and fixedly connected with the lower frame body 432 through screws or bolts in a removable and washable manner. Wherein, the length direction of the copper bar 44 is along the X direction, and a plurality of bolts or screws arranged in a single row are arranged on the copper bar. When the copper bar 44 is fixed, it is locked to the lower frame 432 by the screws behind the bolts. It should be understood that, in order to prevent the frame 43 from being charged, when the copper bar 44 is fixed in the frame 43, the copper bar 44 is insulated from the frame 43. Specifically, insulating pads can be provided, or the frame 43 can be insulated. It is made of materials, of course, other known insulation methods can also be used to insulate the copper bar 44 from the frame 43.

6 and 7, the copper bar 44 is provided with

second copper clips

41a, 41b and

third plug bars

42a, 42b, 42c, 42d, wherein the

second copper clips

41a, 41b are located above the copper bar 44 and used It is electrically connected to the third plug bars 42 a, 42 b, 42 c, and 42 d, and the third plug bars 42 a, 42 b, 42 c, and 42 d are located below the copper bar 44. The

second copper clips

41a, 41b are used for electrical connection with the power module 10, and the third plug-in

strips

42a, 42b, 42c, 42d are used for electrical connection with the second circuit board 30 and the third circuit board 60.

It can be seen from the first plug-in strip 12 of the power module 10 in FIG. 5 that the number of the first plug-in strips 12 can be two, and the two first plug-in strips 12 are respectively connected to the positive and negative poles of the power module 10. Therefore, the second copper clamp 41a and the second copper clamp 41b are correspondingly provided, and the second copper clamps 41a and 41b are respectively used for clamping connection with the two first plug-in strips 12 in a one-to-one correspondence. When the copper bars 44 are specifically arranged, the number of the copper bars 44 is also two. For the convenience of description, the two copper bars are named the first copper bar 441 and the second copper bar 442 respectively. Among them, the second copper clip 41a It is fixed to the first copper bar 441 by bolts or screws, and the second copper clip 41b is fixed to the second copper bar 442 by bolts or screws. As shown in FIG. 7, the first copper bars 441 and the second copper bars 442 are stacked and electrically insulated from each other to prevent the two copper bars from being conductively connected to form a short circuit. 7, the frame 43 (upper frame 431) is provided with a through hole 435, and the second copper clips 41 a and 41 b can pass through the through hole 435 to be exposed to facilitate connection with the first copper bar 441 of the power module 10.

2 and 7 together, when the floating connector 40 is connected to the second circuit board 30 and the third circuit board 60, the second circuit board 30 and the third circuit board 60 are respectively provided with two third copper clips 61 and the two third copper clips 31, and the corresponding floating connector 40 is provided with

third plug bars

42a, 42b, 42c, 42d that cooperate with the two third copper clips 61 and the two third copper clips 31. For the convenience of description, the first copper bar 441 is defined as a copper bar connected to the positive electrode of the power module 10, and the second copper bar 442 is defined as a copper bar connected to the negative electrode of the power module 10. As shown in FIG. 7, two

third plug bars

42a, 42c are provided on the first copper bar 441. In FIG. 7, the two

third plug bars

42a, 42c and the first copper bar 441 form an integral structure. The first copper bar 441 is bent downward to form two third plug bars, and the two

third plug bars

42a, 42c are arranged along the length direction of the first copper bar 441. Among them, the two

third plug bars

42a, 42c are respectively The two third copper clips of the second circuit board 30 and the third circuit board 60 are electrically connected one by one. Similarly, the second copper bar 442 is provided with two third plug bars 42b, 42d, and the second copper bar 442 is bent downward to form two third plug bars 42b, 42d, and two third plug bars 42b , 42d are arranged along the length direction of the second copper bar 442, wherein the two third plug bars 42b, 42d are respectively electrically connected to the two third copper clips of the second circuit board 30 and the third circuit board 60 one by one. The two third plug bars 42b, 42d and the second copper bar 442 are integrated.

Continuing to refer to FIG. 7, in order to facilitate the connection of the floating connector 40 with the second circuit board 30 and the third circuit board 60, the two

third plug bars

42a, 42c connected to the first copper bar 441 and the two second copper bars 442 connected The three third plug bars 42b and 42d are arranged crosswise. As shown in FIG. 7, along the length direction of the first copper bar 441, the four plug bars are arranged as follows: the third plug row 42a, the third plug row 42b, and the third plug row 42b. The plug bars 42c and the third plug bars 42d, so that when the second circuit board 30 and the third circuit board 60 are arranged in the same layer, the first copper bar 441 and the second copper bar 442 can be connected to the second circuit board 30 and the second circuit board 30 and the second circuit board 442 respectively. The three circuit boards 60 are electrically connected.

The floating connector 40 provided by the embodiment of the present application is not limited to the floating connector 40 shown in FIGS. 6 and 7. As shown in FIG. 8, FIG. 8 shows a second type of floating connector 40, where the reference numerals in FIG. 8 may correspond to the reference numerals in FIG. 6 and FIG. 7. The difference between the second type of floating connector 40 and the floating connector 40 shown in FIG. 6 lies in the sliding connection between the copper bar in the second type of floating connector 40 and the frame 43. Refer to FIG. 9 together, which shows a partial enlarged view of A in FIG. 8. When the copper bar is connected to the lower frame 432. The copper bar is provided with an insulating support seat 71, the insulating support seat 71 is provided with a through hole, and a pressure sleeve 74 is provided in the through hole, and the pressure sleeve 74 is sleeved on the screw 72. In addition, the lower frame body 432 is provided with a threaded hole 73 that is matched with the screw 72. When the copper bar is fixed to the lower frame body 432, as shown in FIG. 9, the pressure sleeve 74 is partially located in the through hole, and the pressure sleeve There is a gap of X3 between 74 and the side wall of the through hole. Therefore, before the screw 72 is not tightened, the copper bar can slide a distance of x3 in the second direction relative to the lower frame 432. Therefore, the copper bar can slide relative to the lower frame 432 in the second direction.

As shown in FIGS. 2 and 3, when the floating connector 40 is used, it needs to be fixed in the chassis and electrically connected to the power module 10, the second circuit board 30, and the third circuit board 60. The following describes the connection mode of the floating connector 40 with the power supply module 10 and the chassis.

Refer to FIG. 10 and FIG. 11 together, in which FIG. 10 shows a specific structure of the connection between the floating connector and the chassis, and FIG. 11 shows a schematic diagram of the floating connector being slidable relative to the chassis 50. As shown in Figures 10 and 11, the chassis 50 is provided with a plurality of support columns 51, and the plurality of support columns 51 are arranged along the length of the floating connector, and the floating connector is provided with a sliding fit with each support column 51 The long waist hole 4321 is specifically provided on the lower frame 432. When assembling, the support column 51 is inserted into the long waist hole 4321 and can slide in the long waist hole 4321, wherein the length direction of the long waist hole 4321 is along the first direction, and the length direction of the long waist hole 4321 is the floating connection The direction in which the device can slide relative to the chassis 50. The above-mentioned first direction is the length direction of the floating connector, that is, the X-axis direction in FIG. 1. As shown in FIG. 10, when the support column 51 is inserted into the long waist hole 4321, there is a gap of x2 length between the support column 51 and the long waist hole 4321 in the first direction, and the support column 51 can be adjusted in the long waist hole as needed. The specific position in the hole 4321 realizes the relative sliding of the floating connector and the chassis 50. In addition, each support column 51 is screwed with a locking screw passing through the long waist hole 4321. The locking screw is used to lock the floating connector. During assembly, the locking screw passes through the long waist hole 4321 and is connected to the support. The posts 51 are screwed together, and the floating connector is locked in a set position by a locking screw inserted in each long waist hole 4321. When in use, when the floating connector needs to be adjusted, loosen the locking screw, the support column 51 can slide in the long waist hole 4321, and when it slides to the set position, the locking screw is locked to lock the floating connector Fixed on the chassis 50. When the floating connector is locked in the chassis 50 by the locking screw, the stability of the floating connector when connected to the power module 10 and the circuit board can be ensured. It can be seen from the above description that the floating connector provided by the embodiment of the present application can slide a distance of x2 relative to the chassis 50, and through the gap of X2 length between the support column 51 and the long waist hole 4321, the floating connector can be placed in the first position. Absorb the error of x2 length in the direction. Therefore, a part of the accumulated tolerances of the second circuit board 30 and the third circuit board 60 relative to the power module 10 are absorbed.

When sliding the floating connector with the chassis, it is necessary to electrically connect the floating connector with the second circuit board 30 and the third circuit board 60. For specific connections, the third socket of the floating connector is connected to the second circuit board 30 and the

second circuit board

30 and 60 respectively. The third copper clip on the third circuit board 60 is electrically connected.

Refer to FIG. 4, FIG. 10, and FIG. 12 together, in which FIG. 12 shows a schematic diagram of mating between the floating connector 40 and the power module 10 provided by an embodiment of the present application. Wherein, the power supply module 10 is provided with a guide pin 13, and the number of the guide pin 13 can be one, two or more than two; meanwhile, the floating connector 40 is provided with a guide sleeve 434 sleeved on each guide pin 13. As shown in FIG. 12, when the guide pin 13 is inserted into the guide sleeve 434, there is a gap of x1 distance between the through hole in the guide sleeve 434 and the guide pin 13, so that the floating connector 40 can move relative to the power module 10 x1 distance. Therefore, the floating connector 40 can be accurately electrically connected with the power module 10. For the specific electrical connection between the floating connector 40 and the power module 10, please refer to the description of the second copper clip 41 and the second plug-in strip 11 mentioned above.

In order to facilitate the assembling effect of the server provided by the embodiment of the present application, it will be described in detail below in conjunction with the assembling process of the server. When the power module 10, the first circuit board 20, the second circuit board 30, and the third circuit board 60 are actually stacked and assembled in the chassis 50, they are assembled from bottom to top, as shown in Figure 1, Figure 2 and Figure 3:

First assemble the second circuit board 30 and the third circuit board 60 on the bottom shell of the chassis 50;

Assemble the floating connector 40 on the support column of the chassis 50, and the copper bars of the floating connector 40 are matched with the third copper clips on the second circuit board 30 and the third circuit board 60;

Assemble the first circuit board 20 on the chassis 50;

Assemble the power module 10 on the chassis 50, match the second copper bar 442 on the power module 10 with the first copper clip 21 of the first circuit board 20, and the first copper bar 441 and the second copper clip on the floating connector 40 Cooperate. Since the power module 10 and the first circuit board 20 are precisely matched, based on the mating of the power module 10, the fit between the power module 10 and the floating connector 40 needs to be able to absorb a large tolerance. As mentioned above, the guide pin 13 of the power module 10 and the guide sleeve 434 of the floating connector 40 are roughly positioned to absorb the tolerance of x1. When the tolerance of x1 is absorbed, the power module 10 will pass through the guide pin 13/guide sleeve 434 Drive the floating connector 40 to move relative to the chassis 50 (maximum amount of movement x2). If the tolerance of x2 is absorbed, the copper bar inside the floating connector 40 can move relative to the frame (maximum amount of movement x3) until the power module 10 and the first A circuit board 20 and a floating connector 40 are assembled in place, and the power module 10 is electrically connected to the first circuit board 20 and the floating connector 40, respectively.

It can be seen from the above description that in the server of the present application, the guide sleeve 434 of the floating connector 40 and the guide pin 13 of the power module 10 cooperate to achieve coarse positioning, and the absorbable tolerance value is x1, and the floating connector 40 is overall Floating design, the floating amount of the chassis 50 can absorb the tolerance value x2, and the floating amount of the copper bar inside the floating connector 40 relative to the frame is x3, where the value of x1+x2+x3 is not less than the value of the power module 10 and the second The tolerance value of the copper bar/copper clamp fit between the circuit board 30 and the third circuit board 60. During the conductive connection, the first copper bar 441 of the power module 10 is matched with the second copper clip of the floating connector 40, and then the current is transmitted to the second circuit board 30 and the third circuit board 60 through the copper bar of the floating connector 40 Above, it is realized that the power module 10 supplies power to the first circuit board 20, the second circuit board 30, and the third circuit board 60 at the same time.

In the above example, the sliding direction of the floating connector 40 relative to the chassis and the sliding direction of the copper bar relative to the frame are the same. For example, the floating connector 40 slides in the first direction relative to the chassis, and the copper bar slides in the second direction relative to the frame. Then the first direction is parallel to the second direction. However, in the embodiments of the present application, it is not limited to the above-mentioned sliding fit, and the second direction perpendicular to the first direction can also be adopted, that is, the sliding direction of the floating connector 40 relative to the chassis is perpendicular to the sliding direction of the copper bar relative to the frame. Or, the second direction and the first direction may be at a certain angle, such as different angles of 30 degrees, 45 degrees, etc., to achieve adjustment in more directions.

In the above example, the power supply module 10 and the floating connector 40, and the floating connector 40 and the second circuit board 30 and the third circuit board 60 are all realized by the cooperation of copper clips and plug-in strips. However, in the embodiments of the present application, it is not limited to the above-mentioned specific connection manners, and other plug-in and pull-out manner matched structural components may also be used. However, no matter which matching method is adopted, it only needs to meet the following limitations: the copper bar is provided with a first connector on the side facing the corresponding circuit board; the circuit board corresponding to the copper bar is provided with a clamp for clamping the first connector The first jacket; the power module 10 is provided with a second connector; the side of the copper bar facing the power module 10 is provided with a second jacket for clamping the second connector.

When specifically using the above-mentioned jacket and connector, when the first jacket is connected to the first connector but not fixed, taking a copper clip as an example, the first connector can slide in the third direction relative to the first jacket; When the second jacket is connected to the second connector but not fixed, the second connector can slide in the fourth direction relative to the second jacket. The third direction and the fourth direction are parallel to the first direction and the second direction in pairs; or, the third direction and the fourth direction are parallel to the first direction respectively; or, the third direction and the fourth direction are parallel to the second direction respectively . The connection is realized through the cooperation of the connector and the jacket. In this way, it is possible to ensure that the floating connector 40 is relatively moved relative to the corresponding circuit board and the power supply module 10 to still be electrically connected. The above connection but not fixed refers to the state in which the jacket and the connector are not tightly fixed. Take the copper clamp and the plug strip as an example, that is, when the copper clamp is not clamped on the plug strip.

In addition, in the above example, a two-level circuit board is used as an example. When the circuit board in the server has multiple levels, the floating connector 40 provided above can still be used for connection, but the number of floating connectors 40 is based on The number of connected circuit boards has changed. It is only necessary that the first level circuit board close to the power supply module 10 is directly connected to the power supply module 10, and the remaining circuit boards of each level are connected to the power supply module 10 through the floating connector 40. Of course, the number of circuit boards per level is not limited to the above two. The number of circuit boards per level provided in the embodiment of the present application can be multiple, and when the number of circuit boards per level is multiple , Multiple circuit boards of the same level are on the same layer. In this way, the floating connector 40 can be electrically connected to different circuit boards on the same layer.

It can be seen from the above description that the power module 10 is connected to the circuit boards of the other stages through the floating connector 40, so that the power module 10 can be directly connected to the circuit boards of different levels, and the circuit boards of different levels are connected in parallel, thereby improving This improves the flexibility of the server architecture. In addition, when the circuit boards of different levels are connected in parallel, the floating connector 40 can absorb tolerances, thereby reducing tolerance accumulation during assembly, reducing installation requirements, and facilitating the connection of the power module 10 to different circuit boards.

It should be understood that the modules provided in the embodiments of the present application are not limited to the above-mentioned power supply modules, but can also be other modules, such as transceiver modules, communication modules and other different modules. When the communication module is adopted, the communication module is connected through the above floating connection. When the connector is connected, the communication module and the circuit board transfer signals to each other.

The embodiment of the present application also provides a floating connector, which includes a frame and a copper bar arranged in the frame; wherein the frame is used for sliding connection with the chassis of the server; the copper bar is used for conductive connection Power module and circuit board. In a specific sliding connection, the floating connector is provided with a long waist hole that is slidably fitted with the chassis of the server, and the floating connector can slide in a first direction relative to the chassis. In addition, the copper bar can also be slidably connected to the frame, and the copper bar can slide in the second direction relative to the frame.

Each copper bar is provided with a plurality of first connectors on the side facing the corresponding circuit board; the circuit board corresponding to each copper bar is provided with a first jacket for clamping each first connector, and at the same time is provided on the frame There is a through hole, and the second connecting sleeve passes through the through hole and is exposed. The power module is provided with a plurality of second connectors; the side of each copper bar facing the power module is provided with a second jacket for clamping each second connector; when the above-mentioned jackets and connectors are specifically used, When the first jacket is connected to the first connector but not fixed, taking the copper clip as an example, the first connector can slide in the third direction relative to the first jacket; when the second jacket is connected to the second connector but not fixed When fixed, the second connecting head can slide in the fourth direction relative to the second jacket. The third direction and the fourth direction are parallel to the first direction and the second direction in pairs; or, the third direction and the fourth direction are parallel to the first direction respectively; or, the third direction and the fourth direction are parallel to the second direction respectively . The connection is realized through the cooperation of the connector and the jacket. In this way, it is possible to ensure that the floating connector 40 is relatively moved relative to the corresponding circuit board and the power supply module 10 to still be electrically connected. The above connection but not fixed refers to the state in which the jacket and the connector are not tightly fixed. Take the copper clamp and the plug strip as an example, that is, when the copper clamp is not clamped on the plug strip. For the specific structure of the floating connector, reference may be made to the description in FIGS. 6 to 9 above.

In addition, an embodiment of the present application also provides a system, which includes the server of any one of the foregoing, or the floating connector of any one of the foregoing. In the above solution, the power module is connected to the circuit boards of the other stages through the floating connector, so that the power module can be directly connected to the circuit boards of different levels, and the circuit boards of different levels are connected in parallel, thereby improving the flexibility of the server architecture Sex. In addition, when parallel connection between circuit boards of different levels is used, tolerances can be absorbed by floating connectors, thereby reducing tolerance accumulation during assembly, reducing installation requirements, and facilitating the connection of power modules to different circuit boards.

The above are only specific implementations of this application, but the scope of protection of this application is not limited to this. Any person skilled in the art can easily conceive of changes or substitutions within the technical scope disclosed in this application, which shall cover Within the scope of protection of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

A server, characterized by comprising: a chassis, a module and a circuit board arranged in the chassis;

The circuit board is connected to the module through a floating connector; and the floating connector is slidably connected to the chassis; wherein the floating connector can slide in a first direction relative to the chassis.
The server according to claim 1, wherein a support column is provided on the chassis, and the floating connector is provided with a long waist hole that is slidingly fitted with the support column.
4. The server according to claim 2, wherein the supporting column is screwed with a locking screw threaded in the long waist hole;

The floating connector is locked in a set position by a locking screw threaded in the long waist hole.
The server according to any one of claims 1 to 3, wherein a guide pin is provided on the module; and the floating connector is provided with a guide sleeve sleeved on the guide pin.
The server according to any one of claims 1 to 4, wherein the floating connector comprises: a frame, and a copper bar provided in the frame; wherein,

The frame is slidably connected to the chassis;

The circuit board is connected to the module through the copper bar.
The server according to claim 5, wherein the copper bar is slidably connected to the frame, and the copper bar is slidable in a second direction relative to the frame.
The server according to claim 6, wherein the first direction is perpendicular to the second direction.
The server according to claim 6 or 7, characterized in that:

A first connector is provided on the side of the copper bar facing the circuit board;

The circuit board is provided with a first jacket for connecting with the first connector;

The module is provided with a second connector;

The side of the copper bar facing the module is provided with a second jacket for connecting with the second connector; wherein,

When the first jacket is connected to the first connector but not fixed, the first connector can slide in a third direction relative to the first jacket;

When the second jacket is connected to the second connector but not fixed, the second connector can slide in the fourth direction relative to the second jacket.
A floating connector, characterized in that a frame body and a copper bar arranged in the frame body; wherein,

The frame is used for sliding connection with the chassis of the server;

The copper bar is used to connect the module and the circuit board.
9. The floating connector according to claim 9, wherein the copper bar is slidably connected to the frame, and the copper bar is slidable in the second direction relative to the frame.
The floating connector according to claim 10, wherein the floating connector is provided with a long waist hole that is slidably fitted with the chassis, and the floating connector can slide in a first direction relative to the chassis.
The floating connector according to claim 11, wherein:

A first connector is provided on the side of the copper bar facing the circuit board;

The circuit board is provided with a first jacket for connecting with the first connector;

The module is provided with a second connector;

The side of the copper bar facing the module is provided with a second jacket for connecting with the second connector; wherein,

When the first jacket is connected to the first connector but not fixed, the first connector can slide in a third direction relative to the first jacket;

When the second jacket is connected to the second connector but not fixed, the second connector can slide in the fourth direction relative to the second jacket.
A system, characterized by comprising the server according to any one of claims 1-9, or the floating connector according to any one of claims 10-12.